CN216768078U - Damping rotating shaft and folding machine shell - Google Patents

The utility model discloses a damping rotating shaft and a folding machine shell, wherein the damping rotating shaft comprises: at least four axes which are arranged in parallel, and both ends of each axis are provided with limiting pieces; a plurality of damping units including damping members and fixed mounting members; the damping piece is arranged between the limiting pieces at the two ends of the axle center and comprises two single-shaft gears and a double-shaft gear arranged between the two single-shaft gears; the double-shaft gear and the single-shaft gear are sleeved outside the shaft center and can rotate relative to the shaft center, one end of the single-shaft gear is provided with gear teeth, and the other end of the single-shaft gear is provided with a fixed mounting part; the adjacent double-shaft gear and the single-shaft gear are meshed with each other; the damping rotating shaft generates torsion based on the rotation between the damping piece and the shaft center; the same-motion gear is arranged between the limiting part and the damping unit, and the fixed sleeve is arranged outside the two adjacent axes. The damping rotating shaft disclosed by the utility model has basic torque, ensures the hovering capacity of a product equipped with the damping rotating shaft, and meets the requirements of large rotating angle and portability of volume.

Technical Field

The utility model relates to the technical field of rotating shafts, in particular to a damping rotating shaft and a folding machine shell.

Background

The rotating shaft is also called as a pivot device or a rotating hinge, is a connecting element capable of providing relative rotation, is widely applied to various electronic equipment and derivative products thereof at present, such as electronic equipment such as a notebook computer and the like, and realizes the functions of opening and closing, rotating positioning and self-closing between a display screen part and a base body part of the notebook computer and the like through the relative rotation function provided by the rotating shaft; and for the supporting machine shell of a mobile phone, a tablet personal computer and the like, the functions of opening and closing, rotational positioning, self-closing and the like between the supporting plate and the base are realized through the relative rotation function provided by the rotating shaft.

With the pursuit of more convenient use of the products, higher requirements are put forward on each part in the electronic equipment and the derivative products thereof, and particularly the rotating shaft mechanism, higher requirements are put forward on the large rotating angle and the volume portability of the rotating shaft mechanism while ensuring that the rotating shaft mechanism has higher torsion force to enable the corresponding product to have hovering capability.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to solve the problem that the rotating shaft mechanism in the prior art cannot satisfy the requirements of large rotating angle and small volume and portability while having the basic torque to ensure the hovering capability of the corresponding product, and to provide a damping rotating shaft and a folding housing.

To this end, according to a first aspect, the utility model provides a damped rotary shaft comprising:

at least four axes which are arranged in parallel, wherein both ends of each axis are provided with a limiting piece;

a plurality of damping units including a damping member and a fixed mounting member; the damping piece is arranged between the limiting pieces at the two ends of the axis and comprises at least one double-shaft gear and two single-shaft gears; the double-shaft gear is arranged between the two single-shaft gears, is sleeved outside the two adjacent shaft centers and can rotate relative to the shaft centers; the single-shaft gear is sleeved outside the shaft center and can rotate relative to the shaft center, one end of the single-shaft gear is provided with gear teeth, and the other end of the single-shaft gear is provided with a fixed mounting piece; the adjacent double-shaft gear and the single-shaft gear are meshed with each other; the damping rotating shaft is based on torque force generated by rotation between the damping piece and the shaft center;

the same-motion gear is arranged between the limiting part and the damping unit and fixedly sleeved outside two adjacent axes.

Further, the fixed mounting member includes: interconnect's first mounting panel and second mounting panel have the first holding tank that holds the one end that the teeth of a cogwheel were kept away from to the unipolar gear in the first mounting panel, and second mounting panel lid is located on the first holding tank.

Further, the one end that the teeth of a cogwheel were kept away from to unipolar gear is provided with fixed lug, and first holding tank bottom is provided with first fixed slot, is provided with the second fixed slot on the second mounting panel, and fixed lug card is located in first fixed slot and the second fixed slot.

Furthermore, still be provided with on the first mounting panel with second mounting panel assorted second holding tank, during the second mounting panel embedding second holding tank, first mounting panel and second mounting panel are connected.

Furthermore, a limiting bump corresponding to the second fixing groove in the second mounting plate is arranged at the bottom of the first accommodating groove in the first mounting plate, and the limiting bump is clamped in the second fixing groove.

Furthermore, two shaft holes are formed in the double-shaft gear, the double-shaft gear is sleeved outside the shaft center through the shaft holes, and the two shaft holes are communicated through an opening.

Furthermore, a spiral groove is arranged on the axis.

Furthermore, one end limiting part is detachably connected with the shaft center.

According to a second aspect, the present invention also provides a folding chassis for supporting a mobile terminal, comprising:

the supporting plate can rotate relative to the base;

the support plate includes: the damping rotating shaft comprises a first plate body and a second plate body, wherein the first plate body and the second plate body are respectively connected with two fixing installation pieces in the damping rotating shaft in the first aspect;

the base and the second plate body are respectively connected with two fixed installation parts in the damping rotating shaft of the first aspect.

Further, the base and the second plate body are connected through the damping rotating shaft of the first aspect, and the two damping rotating shafts are connected through the connecting plate;

two fixed mounting parts of one damping rotating shaft are respectively connected with the base and the connecting plate, and two fixed mounting parts of the other damping rotating shaft are respectively connected with the second plate body and the connecting plate.

The technical scheme provided by the utility model has the following advantages:

1. the damping rotating shaft provided by the utility model is provided with the plurality of damping units, each damping unit comprises a damping part and a fixed mounting part, each damping part comprises a plurality of double-shaft gears and two single-shaft gears, each double-shaft gear is arranged between the two single-shaft gears, each double-shaft gear is sleeved outside two adjacent shaft centers and can rotate relative to the shaft centers, each single-shaft gear is sleeved outside the shaft centers and can rotate relative to the shaft centers, the damping rotating shaft generates larger torsion based on the rotation between the plurality of damping parts and the shaft centers, so that a product provided with the damping rotating shaft has better hovering capacity, and meanwhile, through the linkage of the double-shaft gears, two parts connected through the damping rotating shaft can synchronously rotate, and the rotating angle can reach 360 degrees. Meanwhile, the gears capable of generating torsion are arranged in a plurality of numbers, so that the size of a single gear can be reduced, the size of the whole damping rotating shaft can be reduced, and the portability of the damping rotating shaft is improved. Be provided with fixed mounting spare in unipolar gear one end to the relative motion of a plurality of damping pieces is restricted, the stability of assurance pivot.

2. According to the damping rotating shaft provided by the utility model, the fixing lug is arranged at one end of the single-shaft gear, which is far away from the gear teeth, and the first fixing groove and the second fixing groove are respectively arranged on the bottom of the first accommodating groove and the second mounting plate, so that the fixing lug can be clamped in the first fixing groove and the second fixing groove, and the limiting lug corresponding to the second fixing groove on the second mounting plate is arranged at the bottom of the first accommodating groove of the first mounting plate and is clamped in the second fixing groove, so that the connecting stability of a damping part and a fixing mounting part can be improved, namely the stability of the damping rotating shaft is improved.

3. According to the damping rotating shaft provided by the utility model, the two shaft holes are formed in the double-shaft gear, the double-shaft gear is sleeved outside the shaft center through the shaft holes, and the two shaft holes are communicated through the opening formed between the two shaft holes, so that the elasticity of the double-shaft gear is increased, the torsion stability of the damping rotating shaft is improved, and the service life of the damping rotating shaft is prolonged.

4. According to the damping rotating shaft provided by the utility model, the shaft center is provided with the spiral groove, and the lubricating agent is added through the spiral groove, so that the wear resistance of the shaft center is improved, and the service life of the shaft center is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 and fig. 2 are schematic structural diagrams of a folding chassis according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a damping spindle according to an embodiment of the present invention;

FIG. 4 is an expanded view of a portion of the damping spindle of FIG. 3;

FIG. 5 is an exploded view of a portion of the damping shaft of FIG. 3;

FIG. 6 is a detailed structural diagram of the first mounting plate in FIG. 3;

FIG. 7 is a partial cross-sectional structural view of the damper of FIG. 3;

description of reference numerals:

1-a base;

2-a support plate; 21-a first plate body; 22-a second plate body;

3-damping the rotating shaft;

31-axis center; 311-a limit stop; 312-helical groove;

32-a damping unit; 321-a damping member; 3211-double-shaft gear; 3211 a-shaft hole; 3211 b-open slot; 3212-single-shaft gear; 3212 a-fixed projection; 322-a fixed mount; 3221-a first mounting plate; 3221 a-a first receiving groove; 3221 b-a first fixation groove; 3221 c-limit bump; 3221 d-a second receiving groove; 3222-a second mounting plate; 3222 a-a second fixation groove;

33-a synchronizing gear;

34-a gasket;

4-connecting plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the utility model.