CN113650711B - Fixing device - Google Patents

Detailed Description

Reference will now be made in detail to exemplary embodiments or implementations, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms first, second and the like used in the description and the claims do not denote any order, quantity or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded.

The fixing device of one or more embodiments of the present description can be applied to various scenes in which an object needs to be fixed. In some embodiments, the securing device may be used to secure an object. In some embodiments, the securing means may be used to secure the device housing. For example, fastening means may be used to achieve mutual fastening between chassis housings. In some embodiments, the fixture may also be used to secure an appliance, such as a television, a pendant lamp, an air conditioner, or the like. For example, the fixing means may be used to fix the pendant to the ceiling; for another example, the securing device may also be used to secure a television to a wall. In some embodiments, the securing means may be used to secure the battery. For example, the fixing device may be used to fix a battery to an electric vehicle (e.g., an electric car, an electric two-wheeled vehicle, an electric three-wheeled vehicle, etc.). For another example, the securing means may also be used to secure the battery to other devices or apparatus.

In some embodiments, multiple fixtures may also function as a locator. For example, the fixture may be used to stabilize the relative position of the battery and the electric vehicle. Further, the plurality of fixing devices are arranged at the edge of the battery, so that the battery and the electric vehicle can be kept relatively fixed when the electric vehicle moves. For another example, the fixture may be used to stabilize the relative position of the light fixture to the ceiling. Further, the round ceiling lamp can not rotate on the suspended ceiling through a plurality of fixing devices.

In some embodiments, the securing means may enable a detachable securing connection between the objects. In some embodiments, the securing device may be used to removably secure the battery to the electric vehicle. In some embodiments, the fixing device may include a locking member and a clamping member, the locking member may be connected to the electric vehicle, and the clamping member may fix the battery to another object (e.g., the electric vehicle) after the locking member is placed into the fixing hole of the object (e.g., the battery). In some embodiments, taking the disassembly and assembly of the battery on the electric vehicle as an example, the locking piece can be a threaded hole, the clamping piece can be a bolt, the fixed connection of the battery and the electric vehicle can be realized through the cooperation of the bolt and the threaded hole, and the disassembly of the battery and the electric vehicle can be realized through the separation of the clamping piece and the locking piece. However, in practical application, the fixing is realized through the cooperation of the bolt and the threaded hole, so that fine operation is often required to avoid interference or deformation between the bolt and the threaded hole, and the quick replacement of the battery is not facilitated in this way, which results in too low efficiency of replacing the battery. Moreover, frequent disassembly and assembly can lead to the attenuation of the matching moment between the bolt and the threaded hole, so that the clamping piece and the locking piece are difficult to match, and the battery and the electric vehicle are difficult to stably and fixedly connect.

The fixing device provided by the embodiment of the specification comprises a locking piece, a clamping piece and an operating piece movably connected with the clamping piece. The operating member can be operable to move from a first position to a second position such that the catch moves from the locked position to the unlocked position. Therefore, the clamping piece and the locking piece can be mounted or dismounted only by controlling one-time movement of the operating piece, a large amount of mounting and dismounting time can be saved, and the mounting and dismounting efficiency is improved. Moreover, the matching between the clamping piece and the locking piece is not realized by fine operation, interference or deformation is not easy to occur in the assembling and disassembling process, and the fixing device is suitable for multiple disassembly and assembly, so that an object (such as a battery) fixed on the fixing device is more stable.

It should be understood that the application scenario of the fixing device of the present specification is merely some examples or embodiments of the present specification, and it is possible for those skilled in the art to apply the present specification to other similar scenarios according to these drawings without the inventive effort.

Fig. 1 is a schematic view of a battery and a fixture according to some embodiments of the present description. In some embodiments, the fixture 100 may be used to secure the battery 200. In some embodiments, referring to fig. 1, the battery 200 may include a plurality of mounting holes through which the fixing device 100 may detachably fix the battery 200 to the electric vehicle. In some embodiments, one battery 200 may be provided with a plurality of mounting holes, and accordingly, a plurality of fixtures 100 may fix the battery 200 through the plurality of mounting holes. In some embodiments, a plurality of fixtures 100 may be provided at edges of the battery 200, respectively. For example, for the rectangular battery 200, 4 mounting holes may be provided at four top corner edges of the bottom surface of the rectangular battery 200, and 4 fixing devices 100 fix the battery 200 to the electric vehicle through the mounting holes of the rectangular battery 200. In some embodiments, a plurality of (e.g., 3, 4, etc.) mounting holes may be provided on each side of the rectangular parallelepiped battery 200, each of which is fixed by the fixing device 100. In this way, the fixing device 100 can be used to fix the battery 200, so that the stability of the battery 200 can be improved, and the battery 200 can be prevented from falling down due to the damage of a certain fixing device 100.

Fig. 2 is a schematic structural view of a fixing device 100 according to some embodiments of the present description. In some embodiments, referring to fig. 2, the fixation device 100 may include a locking member 110, a clamping member 120, and an operating member 130. The operating member 130 is movably coupled to the locking member 120 such that the operating member 130 is operable to move from a first position 160 to a second position 170 to move the locking member 120 from a locked position to an unlocked position. In some embodiments, the articulation may be a connection in which the two structures may move relative to each other. For example, the articulation may be a hinge, i.e. the operating member 130 and the clamping member 120 are hinged to each other, and the clamping member 120 is rotatable relative to the operating member 130. For another example, the articulation may be a sliding connection, i.e., the clamping member 120 is capable of sliding relative to the operating member 130. The operation member 130 and the clamping member 120 can be moved relatively in other movable connection manners, but are not separated from each other.

In some embodiments, the operating member 130 has a plurality of operating positions relative to the locking member 110, and the operating member 130 is movable between the plurality of positions relative to the locking member 110. In some embodiments, the plurality of operating positions may include a first position 160 and a second position 170, and the operating member 130 may be movable relative to the locking member 110 between the first position 160 and the second position 170. In some embodiments, since the operating member 130 is movably coupled to the locking member 120, the operating member 130 can move the locking member 120 between the locked position and the unlocked position when the operating member 130 moves between the first position 160 and the second position 170 relative to the locking member 110. In some embodiments, the first and second positions 160, 170 may be configured according to the specific configuration of the operating member 130 and the catch 120, and further details regarding the first and second positions 160, 170 may be found in the associated descriptions of fig. 6A and 6B. In some embodiments, the locking position may be a position where the catch 120 mates with the lock 110. In some embodiments, the unlocked position may be a position where the catch 120 is separated from the lock 110.

Fig. 3 is a schematic view of a structure of the locking member 110 according to some embodiments of the present disclosure. In some embodiments, the locking member 110 may be an assembly that provides locking support, which may provide support for the clamping member 120 when mated with the clamping member 120 to maintain the locking member 110 and clamping member 120 in a relative locking relationship. In some embodiments, as shown in fig. 3, the locking member 110 may be an axially extending locking rod, the locking member 110 having a first end 111 and a second end 112 in an axial direction. In some embodiments, the first end 111 of the locking member 110 may be coupled to an electric vehicle (e.g., chassis). The second end 112 of the locking member 110 may mate with the catch 120. In some embodiments, the cross-section of the locking bar may be circular, triangular, quadrilateral, etc. Correspondingly, the lock rod can be in the shape of a cylinder, a triangular prism, a quadrangular prism and the like. In some embodiments, the locking element 110 may be formed from a wear resistant material, for example, the material of the locking element 110 may include one or more of a metallic material (copper, aluminum, chromium, titanium, gold, etc.), a metallic alloy (copper-aluminum alloy, copper-gold alloy, titanium alloy, aluminum alloy, etc.).

In some embodiments, the locking member 110 can include a locking portion, which can be disposed at the second end 112 of the locking member 110. The locking portion may be a portion or structure that provides a lock by cooperating with a snap-fit portion on the snap-fit member 120. In some embodiments, as shown in FIG. 3, the locking portion may be a groove, protrusion, hole, or the like in the locking member 110 that is perpendicular to the axis of the locking member 110. For example, when the locking portion is a groove in the locking member 110, a corresponding protrusion may be provided on the clamping member 120, and the locking member 110 and the clamping member 120 are engaged by embedding the protrusion into the groove so that the locking member 110 and the clamping member 120 are relatively locked on the axis; the separation of the locking member 110 and the clamping member 120 is achieved by moving the protrusions out of the grooves so that the locking member 110 and the clamping member 120 can move relative to each other on the axis. In some embodiments, the locking portion may also be a protrusion, and a corresponding groove may be provided on the clamping member 120 for matching.

In some embodiments, the locking member 110 may be secured to the electric vehicle. In order to replace the battery 200, the battery 200 may be sleeved on the locking member 110, and then the locking member 120 is matched with the locking member 110, so that the locking member 120 and the locking member 110 are in a relatively locking state, and the battery 200 and the locking member 110 can be kept relatively locked, i.e. the battery 200 is locked on the electric vehicle, thereby realizing the fixation of the battery 200.

In some embodiments, the locking element 110 may comprise a locking cap. In some embodiments, a locking cap may be provided at the first end 111 of the locking member. In some embodiments, the cross-section of the locking cap may be larger than the mounting hole of the battery 200, which serves to prevent the battery 200 from moving axially along one end of the locking portion. Thus, the locking cap can be matched with the fixed clamping piece 120, so that the battery 200 cannot axially move, and the fixing effect of the battery 200 is improved. In some embodiments, the locking cap may be circular, rectangular, hexagonal, etc., and will not be described in detail herein.

In some embodiments, one end of the locking cap may be secured to the electric vehicle. In some embodiments, when the fixing device 100 fixes the battery 200, the other end of the locking cap may contact the battery 200 sleeved on the locking member 110. Through the cooperation of the clamping piece 120 and the locking piece 110 and the limit action of the locking cap on the battery 200, the battery 200 can not move out of the first end 111 of the locking piece along the axial direction of the locking piece, so that the battery 200 and the locking piece 110 are kept relatively locked, and the battery 200 and the electric vehicle are also kept relatively locked, and the battery 200 is fixed. By arranging the locking cap, the battery 200 can not move along the axial direction of the locking piece to be in contact with the electric vehicle, so that a certain gap is kept between the electric vehicle and the battery 200, heat dissipation of the battery 200 is facilitated, and abrasion between the battery 200 and the electric vehicle due to friction or collision can be prevented.

In some embodiments, the locking member 110 may be provided with no locking cap, and one end of the battery 200 sleeved on the locking member 110 is in contact with the electric vehicle, the electric vehicle prevents the battery 200 from moving out of the first end 111 of the locking portion, and the other end of the battery 200 can prevent the battery 200 from moving out of the second end of the locking portion through the cooperation of the locking member 110 and the clamping member 120, so as to fix the battery 200.

In some embodiments, the fixing device 100 may further include a buffer pad sleeved on the locking member. In some embodiments, when the fixing device 100 fixes the battery 200, the buffer gasket is located between the battery 200 and the locking cap, providing buffer protection for the battery 200 and the locking cap. In some embodiments, in the case where the locking member 110 is not provided with a locking cap, the buffer pad may be sleeved on the locking member, and the buffer pad is located between the battery 200 and the electric vehicle when the fixing device 100 fixes the battery 200. In this manner, the bumper pad may mitigate slight axial movement of the battery 200 during movement of the electric vehicle, reducing friction and collisions between the battery 200 and other components.

In some embodiments, the bumper may be fixedly coupled to the locking cap such that the bumper is integrally coupled to the locking member 110. In some embodiments, when the bumper is in contact with or connected to the lock cap, the edge of the lock cap is located within the edge of the bumper at the contact or connection face. In some embodiments, the bumper pad may be in the shape of a circular ring, a rectangular ring, a hexagonal ring, or the like. The shape of the buffer gasket can also correspond to the shape of the lock cap, and if the lock cap is circular, the buffer gasket can be a circular ring. For example, the locking cap may be a circular structure and the bumper pad may be a circular structure having a larger diameter than the locking cap. In some embodiments, the shape of the bumper pad may also have no correspondence to the shape of the locking cap. For example, the locking cap may be a hexagonal structure and the cushion pad may be a circular structure (e.g., a circumscribed circle of a hexagon) that completely covers the locking cap. In some embodiments, the bumper pad may not be secured to the locking cap, but may be in contact with the locking cap only.

In some embodiments, the buffer pad may be a flexible material pad that may buffer slight axial movement of the battery 200 during movement of the electric vehicle, thereby reducing friction and collisions between the battery 200 and the locking cap. In some embodiments, the cushion pad may be a flexible material such as sponge, rubber, silicone, or the like. In some embodiments, the stiffness of the bumper may be related to the weight of the device to be secured, with the heavier weight requiring a greater stiffness of the bumper to achieve a better cushioning effect. For example, the cushioning pad may have a hardness of 50-60 degrees Shore. Therefore, the buffer gasket is designed to be attached to the lock cap, and the edge of the buffer gasket is larger than the edge of the lock cap, so that the battery 200 can be prevented from being contacted with the lock cap, friction or collision between the battery 200 and the structure with higher hardness such as an electric vehicle or the lock cap is further reduced, and the battery 200 is prevented from being damaged.

Fig. 4 is a schematic structural view of the clamping member 120 according to some embodiments of the present disclosure. In some embodiments, the catch 120 may be a component that acts as a position limiter after mating with the locking member. In some embodiments, the snap-fit may switch between a locked state and an unlocked state assembly of the fixation device 100, which may remain relatively locked with the locking member 110 when mated with the locking member 110. In some embodiments, when the clamping member 120 moves relative to the locking member 110 in a direction perpendicular to the axis of the locking member 110, the clamping member 120 may be separated from the locking member 110, thereby disengaging the clamping member 120 from the locking member 110. In some embodiments, the clamping member 120 may be configured to fit over or around the locking member 110. When the locking member 110 is engaged with the locking member 120, the locking member 120 may restrict the battery 200 from moving along one end axis of the locking portion. In some embodiments, the radius of the lower end of the clip (the end near the first location 160) may be greater than the radius of the upper end (the end near the second location 170). In some embodiments, the sides of the clip smoothly transition from top to bottom. In some embodiments, the laterally expanded shape of the clip 120 may be curved or planar in some embodiments. In some embodiments, the clamping member 120 may be in the shape of a hollow cylinder, a hollow prism, or a hollow cone. As shown in fig. 4, the clamping member 120 may be a hollow cone formed of two half cones. The shape of the inner side of the locking member 120 may correspond to the shape of the outer side of the locking member 110, so that the locking member 110 and the locking member 120 may fit when engaged. For example, the outer side of the locking member 110 is cylindrical, and the catching member 120 may have a hollow shape having a cylindrical inner side. In some embodiments, the clamping member 120 may be made of a wear-resistant material, for example, the material of the clamping member 120 may include one or more of a metal material (copper, aluminum, chromium, titanium, gold, etc.), a metal alloy (copper-aluminum alloy, copper-gold alloy, titanium alloy, aluminum alloy, etc.), which is not specifically limited in this specification.

In some embodiments, the clamping member 120 may include a clamping portion 121, which may be disposed at an inner wall of the clamping member 120. The latch 121 may be a component or structure on the latch 120 for cooperating with the locking portion to switch between the locked and unlocked states. In some embodiments, the clamping portion 121 may be configured to bear the load of the battery 200 by cooperating with the locking portion and prevent the battery 200 from moving out of the locking member from the second end, thereby achieving the securement of the battery 200. In some embodiments, as shown in fig. 4, the clamping portion 121 may be a groove, a boss, a hole, or the like in the clamping member 120 perpendicular to the central axis of the clamping member 120. In some embodiments, the shape of the snap-fit portion 121 may correspond to the shape of the locking portion. For example, the locking portion is a groove, and then the shape of the clamping portion 121 may be a boss, when the fixing device 100 is in the locked state, the boss of the clamping portion 121 may be embedded into the groove of the locking portion to achieve locking, and when the fixing device 100 is in the unlocked state, the boss of the clamping portion 121 may be withdrawn from the groove of the locking portion to achieve unlocking. For another example, the locking portion is a boss, and the shape of the clamping portion 121 may be a groove, which may similarly achieve locking and unlocking. The specific implementation of the cooperation of the locking portion and the clamping portion 121 may be referred to in other related descriptions in this specification, and will not be described herein.

In some embodiments, the locked and unlocked positions of the latch 120 are related to the positions of the locking and latching portions 121. When the clamping portion 121 (e.g., a protrusion) completely enters the locking portion (e.g., a groove), the clamping member 120 is in the locking position; when the locking portion (e.g., groove) is completely withdrawn from the locking portion (e.g., protrusion), the locking member 120 is in the unlocked position. When the clamping piece is at the locking position, the fixing device 100 is in a locking state; when the clamping member is in the unlocking position, the fixing device 100 is in the unlocking state. The locked state may be a state in which the click member 120 and the lock member 110 cannot be separated from each other in the axial direction of the lock member 110. The unlocked state may be a state in which the click piece 120 and the lock piece 110 can be separated from each other in the axial direction of the lock piece 110. For example, in the locked state may indicate that the clamping member 120 and the locking member 110 of the fixture 100 have completed mating with each other and are capable of securing the battery 200, whereas in the unlocked state may indicate that the clamping member 120 and the locking member 110 of the fixture 100 have disengaged from mating with each other, the fixture 100 and the battery may be unloaded.

In some embodiments, the clamping member 120 may include at least one locking clip that is movable relative to the operating member 130 in a direction perpendicular to the axis of the operating member 130 to move the clamping member 120 between the locked and unlocked positions. The locking clip may be a clip-like assembly disposed along the axial direction of the locking member, and the locking clip is provided with a clamping portion 121 that can engage the locking member 110 when the clamping member 120 is in the locked position.

In some embodiments, the number of latching clips may be two. In some embodiments, the two latching clips are symmetrically distributed about the axis of the operating member. In some embodiments, the inner side of each locking clip is provided with a protrusion (i.e. the clamping portion 121), and the corresponding locking piece 110 may be provided with two grooves (i.e. locking portions) symmetrically distributed with respect to the axis. When the two locking clamps are in the locking positions, the protrusions on the two locking clamps are matched with the corresponding grooves respectively. In some embodiments, the number of locking clips may be more than two, such as 3, 4, etc. A plurality of locking clips may be distributed around the circumference of the locking member 110. In some embodiments, the number of locking clips is related to the profile of the locking clip. For example, the locking clip may include two hollow semi-cylindrical jaws symmetrically disposed, with a region surrounded by the middle of the two jaws for the locking member 110 to pass through. For another example, the locking clip may include three tile-shaped clips arranged in a trisection, with the area surrounded by the middle of the three clips being accessible for the locking member 110.

In some embodiments, referring to fig. 1 and 4, the outer side of the locking clip may include a first ramp 122, with an end of the first ramp 122 proximate the first location 160 being inclined in an outward direction relative to the axis of the locking member 110, i.e., an end of the first ramp 122 proximate the first location 160 is distal from the axis of the locking member 110 and an end proximate the second location 170 is proximal to the axis of the locking member 110. In some embodiments, the first ramp 122 may be the entire outer side of the latch clip or may be a portion of the outer side. In some embodiments, during movement of the operating member between the first position 160 and the second position 170, the first ramp 122 may contact an inner side of the operating member, by which contact the first ramp 122 may convert a force applied by the operating member axially downward along the operating member (e.g., a gravitational load applied to the operating member by the battery 200) into an inward pressure on the locking clip perpendicular to the axis, which may cause the locking clip to have an inward movement tendency perpendicular to the axis, further enhancing engagement of the locking clip with the locking member 110, increasing the securing effect of the securing device 100.

In some embodiments, the value of the first tilt angle may be related to the load experienced by the operator. The value of the first tilt angle may affect the rate at which the first ramp 122 converts load to pressure. The larger the value of the first inclination angle, the larger the conversion rate, and the larger the pressure that the first inclined surface 122 receives for the same load. In this way, the value of the first inclination angle is determined according to the load born by the operating member, so that the excessive pressure born by the first inclined surface 122 can be avoided, and the possibility of damage to the locking clamp is reduced. In some embodiments, the first tilt angle may be greater than 0 ° and less than 90 °.

In some embodiments, the outer side of the locking clip is a tapered surface, one end of the tapered surface near the mounting hole of the battery 200 has a first outer diameter, and one end of the tapered surface far from the mounting hole has a second outer diameter; the first outer diameter is smaller than the second outer diameter. Thus, the locking clip may also be in a truncated cone shape, and the first inclined surface 122 with a conical surface may contact the operating member 130, so that the load of the operating member 130 is converted into an inward pressure perpendicular to the axis, and the fixing effect of the fixing device 100 is further increased. In some embodiments, the outer side surface of the locking clip may be rectangular, triangular, trapezoidal, etc., which will not be described herein.

Fig. 5 is a schematic diagram of the operating member 130 according to some embodiments of the present disclosure. In some embodiments, the operating member 130 may be a component that controls the switching of the locked state and the unlocked state of the fixture 100. The operation member 130 can move itself to drive the clamping member 120 to move, so as to change the relative positions of the clamping member 120 and the locking member 110, and realize the switching between the locking state and the unlocking state of the fixing device 100. For example, the control operation member 130 moves from the first position 160 to the second position 170 (e.g., the control operation member 130 moves upward), so that the locking member 120 moves from the locking position to the unlocking position, and the relative positions of the locking member 110 and the locking member 120 are changed from the engaged state to the disengaged state, and the fixing device 100 is switched from the locking state to the unlocking state. The relative positions of the locking member 110 and the locking member 120 may be referred to in the above description of the locking member 110 and the locking member 120, which will not be described herein.

In some embodiments, referring to fig. 5, the operating member 130 may be sleeve-shaped. For example, the operating member may be a cylindrical sleeve or a conical sleeve. In some embodiments, the operating member 130 is sleeved on the locking member 120, and the locking member 120 may be sleeved on the locking member 110. For example, the locking member 110 may be disposed at an innermost layer, the clamping member 120 may be disposed at an intermediate layer, and the operating member 130 may be disposed at an outermost layer. In this way, the operation member 130 is further movably connected with the clamping member 120, and the movement of the outermost operation member 130 is controlled to drive the clamping member 120 of the middle layer to move, so that the fixing device 100 can be fixed and detached. In some embodiments, the shape of the hollow portion of the operating member may correspond to the shape of the catch. In some embodiments, the hollow portion of the operating member may provide a space for movement of the clamping member.

In some embodiments, referring to fig. 6A, the operating member 130 (e.g., a sleeve) may be in the first position 160, the locking member 120 (e.g., a clip) may be in the locked position, and the locking portion (e.g., a boss) may be engaged with the locking portion (e.g., a groove) to place the fixing device 100 in the locked state. Referring to fig. 6B, the operating member 130 (e.g., a lock sleeve) is in the second position 170, the locking member 120 (e.g., a lock clip) is in the unlocked position, and the locking portion (e.g., a boss) and the locking portion (e.g., a groove) are separated, thereby determining that the fixing device 100 is in the unlocked position.

In order to install the fixing device 100, a portion of the locking portion may be advanced into the locking portion, and then the operating member 130 is controlled to move from the second position 170 to the first position 160, so that the operating member 130 drives the locking member 120 to move, and the locking portion are engaged. In some embodiments, the pre-interaction of the snap-fit and locking portions may be achieved by providing magnets that are attracted to each other. The magnet can be used for enabling the clamping part and the locking part which are close to each other to have a sucking trend, so that the clamping part is driven to move into the locking part to be matched, and the fixing function of the fixing device 100 is automatically achieved. For example, the clamping part is made of raised ferromagnetic material, and a magnet is arranged in the groove of the locking part. By providing the magnet, an initial force urging the clamping portion and the locking portion to cooperate with each other can be provided between the clamping portion and the locking portion, and when the clamping portion and the locking portion are separated from each other, the operating member 130 can remove the clamping portion from the locking portion against the magnetic force of the magnet due to the smaller magnetic force. In some embodiments, when the magnet is not provided, the pre-action of the clamping portion and the locking portion can automatically implement the fixing function of the fixing device 100 by moving the clamping member 120 from the unlocking position to the locking position by manually moving the clamping member 120.

In some embodiments, in order to make the clamping portion stay at a position corresponding to the locking portion during the process of installing the fixing device 100, the movement position of the clamping member along the axial direction of the locking member may be limited by setting the limiting member to avoid that the height difference between the clamping portion and the locking portion cannot be matched. In some embodiments, the limiting member may limit the downward movement of the locking member 120 after the operating member 130 moves from the second position to the first position and the locking portion moves downward in the axial direction of the locking member to the same height as the locking portion. In some embodiments, the limiting member may be any one or a combination of several of a limiting rod, a truncated cone, a prism, and a cone. In some embodiments, one end of the limiting member may be fixed relative to the locking member 110, and when the operating member 130 moves to the first position 160, the clamping member 120 abuts against the other end of the limiting member, and the limiting member may prevent the clamping member 120 from further moving downward along the axial direction of the locking member 110 due to the external force, so that the clamping portion and the locking portion are located on the same horizontal plane. For example, in the case where the operation member 130 is provided with a sealing cover at one end near the first position, the stopper may be provided in the sealing cover, with one end fixedly provided in the groove of the sealing cover, and the other end provided on the path along which the engaging member 120 moves in the axial direction. The position of the clamping part limited by the limiting piece can be adjusted by adjusting the depth of the groove of the sealing cover and/or the length of the limiting piece, so that the height difference between the clamping part and the locking part is adjusted.

In some embodiments, referring to fig. 4 and 5, a guide groove 123 is provided on a sidewall of the clamping member 120, a guide post 124 is provided on the operating member 130 at a position corresponding to the guide groove 123, and the guide post 124 is provided in the guide groove 123 and is capable of sliding with respect to the guide groove 123. When the operating member 130 moves between the first position 160 and the second position 170, the operating member 130 can move relative to the axis of the clamping member 120 under the action of the guide post 124.

The guide groove 123 may be a concave structure capable of guiding the movement direction of the object, such as a cavity, a through groove, etc. for guiding the movement of the guide post 124. In some embodiments, the guide groove 123 may be a cavity having a guide space perpendicular to the axial direction of the operation member 130. For example, the guide groove 123 may be a straight groove provided obliquely perpendicular to the axis of the operation piece 130. For another example, the guide slot 123 may be an arcuate or curved slot that curves outwardly relative to the axis of the operating member 130. In some embodiments, the guide slot 123 may have various cross-sectional shapes in a plane parallel to or coincident with the axis of the operating member 130. For example, depending on the cross-sectional shape, the guide slot 123 may include, but is not limited to, a rectangular slot, a key slot, a circular slot, an annular slot extending along a sidewall of the operating member 130, and the like. In some embodiments, the cross-sectional shape of the guide groove 123 may be determined according to the shape of the portion in contact with the guide groove 123, such as a key groove or an annular groove when the portion in contact with the guide groove 123 is cylindrical.

In some embodiments, the guide slot 123 may be provided on the first slope of the clamping member 120. As the operating member 130 moves along the guide groove 123, the engaging member 120 can move relative to the axis of the locking member under the applied force of the portion in contact with the guide groove 123.

In some embodiments, the length of the channel 123 may be determined based on the distance between the first location 160 and the second location 170. For example, the length of the channel 123 may be greater than the distance between the first location 160 and the second location 170. For another example, the length of the guide slot 123 may be 1.2 to 1.5 times the distance between the first location 160 and the second location 170.

In some embodiments, the guide slot 123 may be disposed obliquely with respect to the axis of the operating member 130. For example, the guide groove 123 may be a straight groove provided obliquely with respect to the axis of the operation member 130. In some embodiments, the guide slot 123 may be disposed obliquely outward relative to the axis of the operating member 130, i.e., an end of the guide slot 123 near the second position 170 is near the axis of the operating member, and an end of the guide slot 123 near the first position 160 is remote from the axis of the operating member. For example, the end of the guide slot 123 near the second position 170 is horizontally spaced from the axis of the operating member 130 less than the end of the guide slot 123 near the first position 160 is horizontally spaced from the axis of the operating member 130. In some embodiments, the guide slot 123 may be provided on the same side of the clip as the clip portion. In some embodiments, the guide slot 123 may be provided on the side of the clip adjacent the clip, thereby facilitating a reduction in the thickness of the clip side wall.

In some embodiments, the guide post 124 may be a component that guides the movement of the catch 120. In some embodiments, the guide post 124 can move along the guide slot 123 relative to the clamping member 120, and during the movement, a force is applied to the guide slot 123, thereby driving the clamping member 120 to move.

In some embodiments, the guide post 124 follows the direction of movement of the operating member 130 during movement of the operating member 130 from the first position 160 to the second position 170. Since the guide groove 123 is obliquely disposed such that the guide post 124 applies an urging force to the guide groove 123 in an oblique direction, the catching member 120 is kept stationary in a vertical direction and moves in a horizontal direction following the oblique guide groove 123 due to a stopper action of the locking portion. In some embodiments, when the operating member 130 moves from the first position 160 to the second position 170, the guide post 124 can generate a pushing force on the side of the guide slot 123 away from the axis of the operating member, which is away from the axis of the operating member, so that the engaging member moves away from the axis of the operating member, and the engagement between the engaging member and the locking member is released. In some embodiments, when the operating member 130 moves from the second position 170 to the first position 160, the guide post 124 may generate a pushing force toward the axis of the operating member on the side of the guide slot 123 near the axis of the operating member, so that the engaging member may generate a movement trend toward the axis of the operating member, and thus form a fit between the engaging member and the locking member.

In some embodiments, the guide groove 123 may be disposed on the operating member instead of the engaging member, and the guide post 124 is disposed on the engaging member. In some embodiments, the side wall of the operating member 130 may be provided with a guide slot 123. When the operating member 130 is moved between the first position 160 and the second position 170, the guide post 124 can guide the movement of the catch 120 relative to the axis of the operating member 130 under the force exerted by the guide slot 123.

In some embodiments, the guide slot 123 may be disposed obliquely with respect to the axis of the operating member 130. In some embodiments, the guide slot 123 may be disposed obliquely outward relative to the axis of the operating member 130, i.e., an end of the guide slot 123 near the second position 170 is near the axis of the operating member, and an end of the guide slot 123 near the first position 160 is remote from the axis of the operating member.

In some embodiments, the guide groove 123 may be provided at a side near the clamping portion 121. In some embodiments, during the movement of the operation member 130 from the first position 160 to the second position 170, the obliquely disposed guide groove 123 moves following the movement direction of the operation member 130, so that the guide groove 123 applies an urging force to the guide post 124 in the oblique direction, while the locking member 120 remains stationary in the vertical direction due to the stopper effect of the locking portion and moves following the obliquely disposed guide groove 123 in the horizontal direction. In some embodiments, when the operating member 130 moves from the first position 160 to the second position 170, the side of the guide groove 123 near the axis of the operating member can generate a pushing force on the guide post 124 of the clamping member away from the axis direction of the operating member, so that the clamping member generates a movement trend away from the axis direction of the operating member, and the engagement between the clamping member and the locking member is released. In some embodiments, when the operating member 130 moves from the second position 170 to the first position 160, the side of the guide groove 123 away from the axis of the operating member may generate a pushing force on the guide post 124 of the clamping member toward the axis of the operating member, so that the clamping member generates a movement trend toward the axis of the operating member, and thus, the clamping member and the locking member form a fit.

In some embodiments, the clip and/or the operator may not include the guide slot 123 and/or the guide post 124. In some embodiments, when the clamping member 120 is two locking clips disposed symmetrically to each other, a separation structure may be disposed between the two locking clips in order to unlock the fixing device 100. When the operating member 130 moves from the first position 160 to the second position 170, the separating structure can enable the two locking clips to move towards a direction away from each other under the action of the separating structure, so that the clamping portion is driven to leave the locking portion.

In some embodiments, the separation structure may be a cam structure disposed between two locking clips, the cam structure may include a cam and a transmission portion connected to each other, the peripheral wall of the cam is in contact with the locking clips, the transmission portion is connected to the operation member 130, and the transmission portion may rotate the cam following movement of the operation member 130. The transmission part may be a member that transmits kinetic energy. In some embodiments, the transmission may change the direction of movement of the object. For example, the transmission portion may transmit kinetic energy of the operating member 130 moving from the first position to the second position to the cam, so that the movement of the operating member 130 may rotate the cam. In some embodiments, the transmission may include one or more of the following structures: the gear transmission mechanism, the link transmission mechanism, the rack and pinion transmission mechanism, and the like are not particularly limited in this specification.

The cam may rotate to cause the two locking clips positioned close to each other to have a separation tendency, thereby driving the portion of the clamping portion to separate from the locking portion, and unlocking the fixing device 100. For example, when the operating member 130 moves from the first position 160 to the second position 170, the transmission portion may move along with the operating member 130 to rotate the cam, so that a larger portion of the radius of the cam rotates between the two locking clips, and a force urging the two locking clips away from each other is provided between the two locking clips. When the operating member 130 moves from the second position 170 to the first position 160, the transmission portion can move along with the operating member 130 to drive the cam to rotate, so that the smaller radius portion of the cam rotates between the two locking clips, and the two locking clips can approach each other.

In some embodiments, the separation structure may be a resilient member disposed between the two latching clips. The elastic member may be used to enable the two locking clips with the adjacent positions to have a separation trend, so as to drive the clamping portion to leave the locking portion, thereby unlocking the fixing device 100. In some embodiments, the resilient member is a spring. In some embodiments, a spring is disposed between the opposing side walls of the two locking clips, one end of the spring being connected to a side wall of one of the locking clips and the other end being connected to a side wall of the other locking clip, the spring being in a compressed state when the two locking clips are in proximity to each other. When the two locking clips are close to each other under the pressure of the operating member, the operating member 130 can overcome the elastic force of the spring to close the two locking clips to each other, and when the pressure of the operating member to the two locking clips is eliminated, the elastic force of the spring can promote the two locking clips to be far away from each other. In some embodiments, the resilient member may be a torsion spring. The torsion spring may be connected to one end of the two locking clips near the second position 170 to provide torsion force for the two locking clips to rotate the locking portions outwards, so that the locking portions of the two locking clips are far away from each other.

Fig. 7 is a schematic view of a latch clip and a release member according to some embodiments of the present disclosure. In some embodiments, to maintain the split state after the split of the clips, a split 180 may be provided between the clips to prevent the clips from folding. In some embodiments, as shown in fig. 7, the separating member 180 may include an operating portion 181 and a separating portion 182, and the separating member 180 may maintain the latching clip to be separated by the separating portion 182. In some embodiments, the operation portion 181 may be a component that moves the separation portion 182. In some embodiments, the separation portion 182 may be a protrusion provided on an inner wall (side near the latch clip) of the operation portion 181, and the separation portion 182 of the separation member 180 may be inserted between the plurality of latch clips when the latch clips are separated, and the latch clips are separated by the separation portion 182 to prevent the latch clips from being folded again.

In some embodiments, the separator 180 may further include a reset portion 183, and the separator 180 is reset by the reset portion 183. In some embodiments, the reset portion 183 may be an elastic member provided on an inner wall of the operation portion 181, one end of the reset portion 183 is fixed to the inner wall (side near the latch clip) of the operation portion 181, and the other end is fixed to the operation member 130 or is in contact with an outer peripheral wall of the latch clip. For example, the separating member 180 may compress the restoring portion 183 through the operating portion 181 when being inserted between the plurality of latching clips, and the compressed restoring portion 183 may provide an elastic force to move the separating portion 182 away from between the plurality of latching clips when the separating member 180 needs to be restored, thereby accomplishing the restoration of the separating member 180.

In some embodiments, maintaining the latch clip apart may be accomplished by controlling the movement of the operating portion 181. For example, when the clips are separated, the operation part 181 may be controlled such that the separating member 180 is moved between the clips, maintaining the separation of the clips; when the latch is closed, the control operation on the operation portion 181 may be canceled so that the separator 180 moves out of the latch by the elastic force of the reset portion 183. In some embodiments, the separating member 180 may be disposed at the bottom of the operating member 130 and may move with the operating member 130. For example, when the operating member 130 is in the first position, the locking clips are closed, the operating portion 181 may drive the separating member 180 to move out of the locking clips under the elastic force of the reset portion 183, and when the operating member 130 is in the second position, the locking clips are separated, and the operating portion 181 may drive the separating member 180 to move between the locking clips to avoid the locking clips from being closed.

In some embodiments, referring to fig. 2, the fixation device 100 may further include a return member 140, and the return member 140 may be configured to provide a biasing force to the manipulation member 130 to enable the manipulation member 130 to move from the second position 170 to the first position 160.

In some embodiments, the restoring member 140 may be a compressible component such as a spring, a resilient ball, or the like. In some embodiments, the reset element 140 may be disposed between the operating element 130 and the mounting portion of the battery 200. In some embodiments, the reset element 140 may also provide a displacement space for the operating element 130 from the first position 160 to the second position 170. When the operating member 130 moves from the first position 160 to the second position 170, the return member 140 is elastically deformed after being compressed, so that a biasing force is applied to the operating member 130 to return the operating member 130 to its original position, i.e. to push the operating member 130 back to the original first position 160. In some embodiments, the restoring member 140 may be made of spring steel, rubber, or the like. In some embodiments, the restoring member 140 may be provided with only one, such as a spring that may be placed over the locking member 110. In some embodiments, a plurality of return members 140 may be provided, such as 2 springs around the locking member 110, and the present embodiment is not limited to a specific number of return members 140.

In some embodiments, when the electric vehicle moves, the reset element 140 may also be used to provide a certain displacement space for the battery 200, so that the battery 200 may shake with jolt of the electric vehicle in a small amplitude, reduce stress on the battery 200 and the chassis due to flexible deformation, and avoid damage to devices.

In some embodiments, the restoring member 140 may include a spring. In some embodiments, the snap-fit portion mates with the locking portion when the securing device secures the battery 200, the spring being in a compressed state. One end of the spring may be in contact with the operation member 130 and the other end may be in contact with the battery 200. In some embodiments, the spring is a mechanical part with elasticity, and the spring in a compressed state can apply corresponding biasing forces to two ends of the spring. For example, the spring may apply a biasing force to the operating member 130 and the battery 200 when the snap-fit portion is engaged with the locking portion. The operating member 130 can convert the biasing force into a pressure applied to the clamping member 120 such that the clamping portion mates with the locking portion more tightly. Meanwhile, the biasing force applied to the battery 200 by the spring can enable the battery 200 to be matched with the electric vehicle more tightly, and even if the electric vehicle jolts and shakes, the fixing device 100 can lock the battery 200 and be attached to the electric vehicle.

In some embodiments, the spring may or may not be sleeved on the locking member 110. The present embodiment is not particularly limited as to the relative position between the spring and the locking member and the number of springs.

In some embodiments, the fixture 100 further comprises a flange fixedly coupled to one end of the reset element 140; the other end of the reset element 140 is connected to the operation element 130. The flange may be a connection between two components, which may be used to increase the stability of the interaction between the two components connected. For example, one end of the flange may be connected to the restoring member 140, the other end of the flange may be in contact with the battery 200, and the flange may increase the stability of the interaction between the battery 200 and the restoring member 140, so that the battery 200 may still be attached to the electric vehicle in the event of jolt vibration of the electric vehicle.

In some embodiments, the flange may include a locking through hole and a reset groove at the same center point, the locking through hole may allow the locking member 110 to pass through, and the reset groove may cooperate with the reset member 140 to define the positions of the locking member 110 and the reset member 140, thereby avoiding weakening the fixing effect due to component offset.

In some embodiments, the fixture 100 may further include a sealing cap 150, where the sealing cap 150 is sleeved outside the operating member 130. In some embodiments, a seal housing 150 may be used to seal the joint 120 and the operator 130. In some embodiments, a seal housing 150 may be used to seal the cartridge 120, the handle 130, and the reset 140. In some embodiments, one end of the seal housing 150 is fixed. For example, one end of the seal housing 150 may be fixedly coupled to a flange. In some embodiments, the other end of the seal housing 150 may be fixedly coupled to the operating member 130. For example, the other end of the sealing cap 150 may be fixedly connected to the outer circumferential wall of the operation piece 130, or may be fixedly connected to the bottom of the operation piece 130. In some embodiments, the other end of the seal housing 150 may also be not fixedly connected to the operating member 130. For example, the other end of the seal cap 150 may be in slidable contact with only the outer peripheral wall of the operation piece 130. In some embodiments, the seal housing 150 is retractable along the direction of movement of the operating member 130. In some embodiments, where the securing device includes a reset member, the seal housing 150 may be sleeved outside of the reset member.

The seal housing 150 may be a corrosion resistant shield that prevents external oil and moisture from corroding the fixture assembly, extending the useful life of the fixture 100. In some embodiments, the sealing cover 150 may be made of a material with good corrosion resistance, such as plastic, nylon, or a material with good elasticity, such as natural rubber, silicone, or the like. In some embodiments, a support plate (e.g., a PVC plate, etc.) may be provided on the inside of the containment cap. The support plate can prevent the seal cap 150 from being plastically deformed due to excessive impact, and can increase the high temperature resistance of the seal cap 150. The material of the seal cover 150 is not particularly limited in this embodiment.

In some embodiments, the sealing cap 150 may include a plurality of folds, and the state of the plurality of folds may be determined according to the position of the operating member 130. For example, the seal housing 150 may be an organ housing, the fold of which may be unfolded when the operation member 130 is in the first position 160 and folded when the operation member 130 is in the second position 170. In some embodiments, the seal housing 150 may include a telescoping portion that may enable telescoping of the seal housing 150 by switching between a stretched state and a collapsed state. For example, the seal housing 150 may be a woven mesh that may be stretched when the operator 130 is in the first position 160 and stretched when the operator 130 is in the second position 170.

In some embodiments, the fixture 100 may further include a sealing cap that may be disposed at an end of the operating member 130 proximate the first location 160.

The sealing cover can be an oil leakage-proof and pollution-proof protective cover, which can prevent external pollution from entering the fixing device 100 from the end face of the operation piece 130, and can also prevent lubricating oil in the fixing device 100 from flowing out, so that excessive friction force caused by oil leakage is avoided, and further the fixing device 100 is damaged during use. For example, the seal cap may be an oil seal structure. In some embodiments, the seal cap may be the same material as the seal cap 150, or a different material. The sealing cover can be made of plastic, nylon and other materials with good corrosion resistance, or natural rubber, silica gel and other materials with good elasticity. The material of the seal cover is not particularly limited in this embodiment.

In some embodiments, the battery 200 may include a mounting portion through which the fixing device 100 is connected with the battery 200 when the fixing device 100 fixes the battery 200. The mounting portion of the battery 200 may be a structure or location on the battery 200 for mounting. In some embodiments, the mounting portion of the battery 200 may be a through hole provided on the battery. In some embodiments, the locking member 110 may pass through the through hole, with the first end 111 of the locking member 110 being located on one side of the battery and the second end 112 of the locking member 110 being located on the other side of the battery. The clamping member 120 and the operating member 130 can be sleeved on the locking member 110 from the second end 112 of the locking member 110, and the battery 200 and the locking member 110 are axially fixed through the cooperation between the clamping portion on the clamping member 120 and the locking portion on the second end 112 of the locking member 110.

In some embodiments, the mounting portion of the battery 200 is disposed above the operating member. For example, the battery 200 may be placed between the chassis and the operating member. In some embodiments, the mounting portion of the battery 200 is disposed above the reset device. For example, the battery 200 may be placed between the chassis and the reset member. In some embodiments, the mounting portion of the battery 200 is disposed above the flange. For example, the battery 200 may be placed between the chassis and the flange. In some embodiments, the locking element includes a locking cap, and the area between the locking cap and the flange may be used to provide a mounting for the battery 200. In some embodiments, a bumper is provided under the locking cap, and the area between the bumper and the flange may be used to provide a mounting for the battery 200. In this way, the locking member passes through the mounting portion of the battery 200, the operating member and the locking member may be mounted under the mounting portion of the battery 200, and the mounting portion of the battery 200 and the locking member cannot be separated in the axial direction of the locking member through the engagement of the locking member and the locking member, so that the fixing device 100 is in a locked state to fix the battery 200.

In some embodiments, as shown in fig. 8, the fastening device 100 may be formed as a single fastening unit including the fastening member 120, the operating member 130, the restoring member 140, the flange, and the sealing cap 150 during the locking and unlocking processes, and the fastening unit may be separated from the locking member 110 and remain as a single unit after the separation.

In some embodiments, to enhance the stability and reliability of the connection between the clamping member 120, the operating member 130, the reset member 140, the flange, and the seal housing 150, one or more connecting rods 190 may be provided in the clamping assembly. In some embodiments, as shown in fig. 8, the connecting rod 190 may be disposed inside the snap-fit assembly, a first end 191 of the connecting rod 190 may be connected to the flange, and a second end 192 of the connecting rod 190 may be connected to the operating member 130.

In some embodiments, the interior of the operating member 130 may define a cavity within which the second end 192 of the connecting rod 190 may be disposed through the throughbore such that the cavity is movable relative to the connecting rod 190 when the operating member 130 is moved between the first and second positions 160, 170 and the connecting rod 190 does not follow the movement of the operating member 130. For example, when the operation member 130 moves to the first position 160, the second end 192 of the connecting rod 190 is attached to the end of the cavity near the through hole; when the operating member 130 is moved to the second position 170, the second end 192 of the connecting rod 190 engages an end of the cavity remote from the through hole. In some embodiments, the second end 192 of the connecting rod 190 may have a horizontal cross section that is larger than the through hole of the operating member 130, thereby limiting the operating member 130. For example, when the operating member 130 moves to the first position 160, the second end 192 of the connecting rod 190 cannot pass through the through hole, so as to avoid excessive movement of the operating member 130, and meanwhile, prevent the operating member 130 from being separated from the connecting rod, thereby improving the overall stability of the clamping connection.

In some embodiments, the battery 200 is mounted on the electric vehicle by the fixing device and the locking process is performed as follows:

in order to install the battery 200, the locking cap and the buffer pad of the locking member 110 may be fixed to the electric vehicle, and then the battery 200 and the clamping unit may be sequentially sleeved on the locking member 110. In some embodiments, the clamping portion may be pushed up (as shown in the first direction 310 of fig. 8) along the axis of the locking member by an external force to the position where the locking portion is located, and a portion of the clamping portion is advanced into the locking portion. When a part of the clamping part enters the locking part, the external force is removed, the operation member 130 moves downwards (in a second direction 320 shown in fig. 8) along the axis of the locking member under the action of the gravity of the battery 200, so that the operation member moves from the second position 170 to the first position 160, and the clamping part of the clamping member 120 is driven to move towards the locking part through the inclined surface of the outer surface of the clamping part, so that the clamping part and the locking part are matched, and the locking of the fixing device 100 is realized. In some embodiments, the gravity of the battery 200 may be transferred from the reset element to the operation element 130, and the operation element is moved downward (in the second direction 320 shown in fig. 8) along the axis of the locking element by the biasing force of the reset element 140 to the operation element 130, so that the clamping element 120 is folded inwards, and the clamping portion cooperates with the locking portion to realize the locking of the fixing device 100. By using the fixing device of the embodiment of the present disclosure, the fixing device 100 can be locked by only pushing the clamping member upwards, and the battery 200 can be fixed with the electric vehicle after locking, so as to improve the installation efficiency of the battery 200.

In some embodiments, the process of unlocking the fixture and removing the battery 200 from the electric vehicle is as follows:

when the fixing device 100 is in the locked state, in order to unlock the fixing device 100, a pressure upward along the axis of the locking member (the first direction 310 shown in fig. 8) may be applied to the operating member 130, and the pressure may be greater than the gravity of the battery 200 and the fixing device 100, so that the operating member 130 may move upward against the biasing force of the resetting member, and the clamping portion of the clamping member 120 is driven to move outward through the guide groove 123, so that the clamping portion is separated from the locking portion, and the unlocking of the fixing device 100 is achieved, thereby detaching the whole clamping member from the locking member 110. Then, the battery 200 may be detached from the locking member 110, thereby accomplishing the detachment of the fixture 100. By using the fixing device of the embodiment of the present disclosure, the fixing device 100 can be unlocked only by pushing the operating member 130 upward, and after unlocking, the battery 200 can be removed from the electric vehicle, thereby improving the removal efficiency of the battery 200.

Possible benefits of embodiments of the present description include, but are not limited to: (1) By arranging the inclined plane and the guide groove on the clamping piece, the fixing device can drive the clamping piece to move only by controlling one-time movement of the operating piece, so that the locking state or the unlocking state can be switched, a large amount of loading and unloading time can be saved, and the efficiency of replacing the assembly is improved; (2) Through setting up guide slot and guide post for the cooperation between clamping piece and the locking piece can be changed in the axial motion of control operation spare, does not need fine operation promptly and can realize the switching of fixing device state, and also be difficult for taking place to interfere or warp at loading and unloading in-process clamping piece and locking piece, and frictional force between clamping piece and the locking piece is also less, can reduce the moment decay that leads to because of frequent loading and unloading and be applicable to multiple dismantlement and installation, ensures that the object that makes fixing device on is more stable.

It should be noted that, the advantages that may be generated by different embodiments may be different, and in different embodiments, the advantages that may be generated may be any one or a combination of several of the above, or any other possible advantages that may be obtained.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements and adaptations of the application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within the present disclosure, and therefore, such modifications, improvements, and adaptations are intended to be within the spirit and scope of the exemplary embodiments of the present disclosure.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the application may be combined as suitable.