CN114542587B - Rotating shaft device - Google Patents

The application discloses a spindle device, comprising at least one first structural component providing a first function, wherein the first structural component is composed of a plurality of structural members; the first connection member belongs to one of a plurality of structural members of the first structural assembly; at least one second structural component providing a second function, the second structural component being comprised of a plurality of structural members; the second connector belongs to one of a plurality of structural members of the second structural assembly; the first connecting piece and the second connecting piece are in a matched relation, and are used for fixedly connecting at least one first structural component and at least one second structural component, so that the first structural component moves to be related to the second structural component, and the rotating shaft device is guaranteed to provide a first function and a second function for the connected electronic equipment. According to the assembly structure, the assembly of the rotating shaft device can be realized through fixedly connecting the at least one first structural component and the at least one second structural component, and each structural component does not need to be assembled independently, so that the assembly efficiency is improved.

Rotating shaft device

Technical Field

The present application relates to the field of electronic devices, and more particularly, to a rotating shaft device.

Background

The foldable electronic equipment such as a folding screen mobile phone and a folding screen computer is characterized in that the foldable electronic equipment is connected with two parts which can be electrically opened and closed through a rotating shaft device, and the rotating shaft device provides support and torque for the folding of the electronic equipment.

However, the conventional spindle units are customized, and can only be adapted to electronic devices of one specification, but cannot be adapted to electronic devices of different specifications, and even if the functions of the spindle units are unchanged, the spindle units are still required to be independently developed, so that the cost is high and the efficiency is low.

Disclosure of Invention

In view of this, the present application discloses the following technical solutions:

a spindle device, the spindle device comprising:

at least one first structural component providing a first function, the first structural component being comprised of a plurality of structural members; the first connector belongs to one of a plurality of structural members of the first structural assembly;

at least one second structural component providing a second function, the second structural component being comprised of a plurality of structural members; a second connector belongs to one of a plurality of structural members of the second structural assembly;

the first connecting piece and the second connecting piece are in a matching relationship, and are used for fixedly connecting the at least one first structural component and the at least one second structural component, so that the first structural component is in motion association with the second structural component to move, and the rotating shaft device is guaranteed to provide the first function and the second function for the connected electronic equipment.

Preferably, in the above-mentioned rotating shaft device, the first structural component and the second structural component are stacked and fixed in a matching relationship by the first connecting piece and the second connecting piece; or alternatively

And the first structural component and the second structural component are fixed side by side in a matched relationship through the first connecting piece and the second connecting piece.

Preferably, in the above-mentioned rotating shaft device, the first structural component and the second structural component are fixedly connected to form a rotating shaft unit through the first connecting piece and the second connecting piece in a mutually matched relationship;

the rotating shaft device comprises:

at least two of the rotating shaft units;

at least one third structural component providing a third function, which is arranged between every two rotating shaft units; wherein the third structural component constitutes a connection unit.

Preferably, in the above rotating shaft device, the first function includes providing torsion to a first body and a second body of the electronic device that move relatively; the second function comprises providing navigation of a motion trail for a flexible display screen of the electronic device, wherein the flexible display screen is respectively connected with the first body and the second body;

Or/and (or)

The third function includes providing restraint for a flexible cable circuit board between the first body and the second body.

Preferably, in the above rotating shaft device, the first structural component is a rotating shaft unit, and the second structural component is a connecting unit;

the rotating shaft device comprises:

at least two rotating shaft units and a connecting unit positioned between every two rotating shaft units.

Preferably, in the above rotating shaft device, the first function includes providing torsion for a first body and a second body that move relatively to the electronic device and providing navigation of a movement track for a flexible display screen of the electronic device;

the second function includes providing restraint for a flexible cable circuit board between the first body and the second body.

Preferably, in the above-mentioned spindle device, by replacing any one of the spindle units, the spindle device adapts to different functions of physical form transformation of the connected electronic equipment; or/and (or)

By replacing any one of the connecting units, the rotating shaft device is adapted to the length of the end face where different electronic equipment is connected and used for connecting the rotating shaft device.

Preferably, in the above rotating shaft device, the first structural component includes:

A first rotating arm which rotates synchronously with the first body along with the relative rotation of the first body and the second body, wherein a first rotating shaft and a first guiding part are arranged on the first rotating arm;

a second rotating arm which rotates synchronously with the second body along with the relative rotation of the first body and the second body, wherein a second rotating shaft and a second guiding part are arranged on the second rotating arm, and the second rotating shaft and the first rotating shaft meet the parallel condition;

the first rotating shaft and the first rotating shaft are rotatably arranged between the first fixing frame and the second fixing frame; the first fixing frame forms the first connecting piece and is provided with a first connecting part for fixedly connecting the second structural component;

the first cam arm is fixed on the first driving cam shaft;

the second cam arm is fixed on the second driving cam shaft;

the first driving cam shaft and the second driving cam shaft sequentially and rotatably penetrate through the third fixing frame, the second fixing frame and the first fixing frame;

The first spring and the second spring can be matched with the second fixing frame and the third fixing frame to generate torsion, the first spring and the second spring are both positioned between the second fixing frame and the third fixing frame, the first spring is sleeved on the first transmission cam shaft, and the second spring is sleeved on the second transmission cam shaft;

the first driving gear is fixedly sleeved on the first driving cam shaft and can generate friction damping force with the first friction cam on the second fixing frame;

the second driving gear is fixedly sleeved on the second driving cam shaft and can generate friction damping force with a second friction cam on the second fixing frame;

the driven gear is arranged on the driven shaft, and the driven shaft is rotatably arranged between the first fixing frame and the second fixing frame.

Preferably, in the above rotating shaft device, the second structural component includes:

the first sliding block is used for being fixedly connected with the first body, and a first sliding part which is in sliding fit with the first guiding part is arranged on the first sliding block;

The second sliding block is used for being fixedly connected with the second body, and a second sliding part which is in sliding fit with the second guiding part is arranged on the second sliding block;

the reference block is positioned between the first sliding block and the second sliding block, is provided with a first arc-shaped guide protrusion and a second arc-shaped guide protrusion, forms the second connecting piece which is used for being matched with the first fixing frame, and is provided with a second connecting part which is used for being fixedly connected with the first connecting part;

one end of the first connecting arm is rotationally connected with the first sliding block, and the other end of the first connecting arm is rotationally connected with the first arc-shaped guide protrusion;

one end of the second connecting arm is rotationally connected with the second sliding block, and the other end of the second connecting arm is rotationally connected with the second arc-shaped guide protrusion;

in the relative movement process of the first body and the second body, the first connecting arm is synchronously driven to rotate around the first arc-shaped guide bulge through the sliding of the first sliding part along the first guide part, meanwhile, the second sliding part is synchronously driven to rotate around the second arc-shaped guide bulge through the sliding of the second sliding part along the second guide part, and the flexible display screen is switched from a folding posture to an unfolding posture to provide the navigation of a movement track;

The third structural component comprises:

the installation shell is provided with an installation cavity for installing the rotating shaft units, the third fixing frame and the reference block are fixed on the installation shell, and the part of the installation shell between the two rotating shaft units is used for providing constraint for the flexible cable circuit board;

the first support plate is fixedly connected with the first connecting arm, the second support plate is fixedly connected with the second connecting arm, the first support plate is provided with a first arc-shaped track which is used for being rotationally connected with the first body, and the second support plate is provided with a second arc-shaped track which is used for being rotationally connected with the second body;

wherein in the deployed position, the first support panel and the second support panel satisfy a coplanar condition capable of supporting a middle portion of the flexible display screen; in the folded posture, the first support plate and the second support plate are relatively arranged at two sides of the middle portion, and the first support plate and the second support plate are matched to form an accommodating space for accommodating the middle portion in a bent state.

Preferably, in the above rotating shaft device, the first structural component includes:

a first support plate which rotates synchronously with the first body along with the relative rotation of the first body and the second body;

a second support plate which rotates synchronously with the second body along with the relative rotation of the first body and the second body;

the first connecting part is used for fixedly connecting the second structural component, and the first supporting plate and the second supporting plate are respectively and rotatably connected at two ends of the supporting bottom shell;

the mounting cover is buckled with the supporting bottom shell to form a mounting cavity;

the first rotating shaft and the second rotating shaft are arranged in the mounting cavity and meet parallel condition;

the first fixing frame, the second fixing frame and the third fixing frame are sequentially arranged and are fixed with the supporting bottom shell and the mounting cover;

the friction disc is positioned between the first fixing frame and the second fixing frame, and the first rotating shaft and the second rotating shaft respectively and rotatably pass through the first fixing frame, the friction disc, the second fixing frame and the third fixing frame in sequence;

The first spring and the second spring can be matched with the first fixing frame and the friction disc to generate torsion, the first spring and the second spring are both positioned between the first fixing frame and the friction disc, the first spring is sleeved on the first rotating shaft, and the second spring is sleeved on the second rotating shaft;

the first driving gear is fixedly sleeved on the first rotating shaft;

the first driving gear and the second driving gear are both positioned between the second fixing frame and the third fixing frame;

the first cam is fixedly sleeved on the first rotating shaft;

the first cam and the second cam are both positioned between the friction disc and the second fixing frame, the first cam can generate friction damping force with the first friction cam on the friction disc, and the second cam can generate friction damping force with the second friction cam on the friction disc;

at least one driven gear is in transmission connection with the first driving gear and the second driving gear, and two ends of the driven gear are respectively and rotatably connected with the second fixing frame and the third fixing frame;

The first guide rod is fixedly connected with the first rotating shaft at a first end, and a first guide part which is used for synchronously rotating with the first body and guiding the sliding direction of the first body is formed at a second end;

the first end of the second guide rod is fixedly connected with the second rotating shaft, and the second end of the second guide rod forms a second guide part which is used for synchronously rotating with the second body and guiding the sliding direction of the second body;

in the process of the relative movement of the first body and the second body, the movement track navigation is provided for the flexible display screen to be switched from the folding posture to the unfolding posture through the sliding of the first body along the first guiding part and the sliding of the second body along the second guiding part; simultaneously, through synchronous rotation of the first guide rod and the first body, the rotation of the first rotating shaft is connected, and synchronous rotation of the second guide rod and the second body, the rotation of the second rotating shaft is connected, so that torsion is provided for the first body and the second body;

the second structural component comprises:

the middle supporting blocks are at least two and have different lengths along the rotation axis direction of the rotating shaft device, the middle supporting blocks form second connecting pieces which are matched with the supporting bottom shell, and two ends of each middle supporting block form second connecting parts which can be stacked with the first connecting parts;

The hollow part in the middle of the middle supporting block provides constraint for the flexible cable circuit board, and the middle supporting block and the supporting bottom shell can be matched to form a coplanar middle supporting surface;

wherein in the extended position, the first support plate, the second support plate, and the intermediate support surface satisfy a coplanar condition capable of supporting an intermediate portion of the flexible display screen; in the folded posture, the first support plate and the second support plate are relatively arranged on two sides of the middle support surface, and the first support plate, the second support plate and the middle support surface are matched to enclose an accommodating space for accommodating the middle part in a bending state.

As can be seen from the above technical solution, the spindle device disclosed in the present application includes at least one first structural component and at least one second structural component, where the first structural component and the second structural component are modules integrated with a plurality of structural members; the first connecting piece of the first structural component and the second connecting piece of the second structural component are in a matched relation, at least one first structural component and at least one second structural component are fixedly connected, and the assembly of the rotating shaft device can be realized without independently assembling each structural component of the first structural component and each structural component of the second structural component, so that the assembly efficiency is improved.

Meanwhile, according to the rotating shaft device, the at least one first structural component with the corresponding size and the at least one second structural component with the corresponding size can be selected according to the rotating shaft device specifications of the electronic equipment with different specifications, so that the electronic equipment with different specifications can be matched with the electronic equipment without independent development, the development cost is reduced, and the efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the assembly of a part of the structure of a spindle apparatus disclosed in embodiment 1 of the present application;

FIG. 2 is a schematic diagram of an exploded structure of the torsion module disclosed in embodiment 1 of the present application;

FIG. 3 is a schematic view of an exploded construction of a track module disclosed in embodiment 1 of the present application;

FIG. 4 is a schematic diagram showing the assembly structure of the spindle device and the first and second bodies disclosed in embodiment 1 of the present application;

FIG. 5 is a schematic view of the structure of the spindle device according to embodiment 1 of the present application assembled with the first body and the second body;

fig. 6 is a schematic structural view of the support plate of the spindle device disclosed in embodiment 1 of the present application assembled with the first body and the second body;

FIG. 7 is a schematic view showing a part of the structure of a spindle apparatus disclosed in embodiment 2 of the present application;

FIG. 8 is a schematic view showing the assembly of a part of the structure of a spindle apparatus disclosed in embodiment 2 of the present application;

fig. 9 is a partial schematic structural view of a spindle unit disclosed in embodiment 2 of the present application;

FIG. 10 is a schematic view showing an assembled structure of a spindle apparatus disclosed in embodiment 2 of the present application;

FIG. 11 is a schematic view of a portion of the structure of the spindle assembly disclosed in embodiment 2 of this application in a folded position;

FIG. 12 is a schematic view of a portion of the structure of the spindle assembly disclosed in embodiment 2 of the present application in an extended position;

FIG. 13 is a schematic view of the spindle assembly disclosed in embodiment 2 of the present application in an extended position;

fig. 14 is a schematic view of the spindle device disclosed in embodiment 2 of the present application in a folded position.

Detailed Description

The embodiment of the application discloses a rotating shaft device, which improves the assembly efficiency.

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The rotating shaft device disclosed by the embodiment of the application comprises at least one first structural component for providing a first function, wherein the first structural component is composed of a plurality of structural components; the first connection member belongs to one of a plurality of structural members of the first structural assembly; at least one second structural component providing a second function, the second structural component being comprised of a plurality of structural members; the second connector belongs to one of a plurality of structural members of the second structural assembly; the first connecting piece and the second connecting piece are in a matched relation, and are used for fixedly connecting at least one first structural component and at least one second structural component, so that the first structural component moves to be related to the second structural component, and the rotating shaft device is guaranteed to provide a first function and a second function for the connected electronic equipment.

In summary, the spindle device disclosed in the present application includes at least one first structural component and at least one second structural component, where the first structural component and the second structural component are modules integrated with a plurality of structural members; the first connecting piece of the first structural component and the second connecting piece of the second structural component are in a matched relation, at least one first structural component and at least one second structural component are fixedly connected, and the assembly of the rotating shaft device can be realized without independently assembling each structural component of the first structural component and each structural component of the second structural component, so that the assembly efficiency is improved.

Meanwhile, according to the rotating shaft device, the at least one first structural component with the corresponding size and the at least one second structural component with the corresponding size can be selected according to the rotating shaft device specifications of the electronic equipment with different specifications, so that the electronic equipment with different specifications can be matched with the electronic equipment without independent development, and the development cost is reduced.

The above specifications include a length dimension of the rotary shaft device in the direction of the rotation axis, and/or a width dimension perpendicular to the rotation axis, and/or a thickness dimension perpendicular to the rotation axis, and the like.

Preferably, the rotating shaft device is stacked and fixed with the first structural component and the second structural component in a matching relationship with each other through the first connecting piece and the second connecting piece; or the first structural component and the second structural component are fixed side by side in a matched relationship through the first connecting piece and the second connecting piece.

It should be noted that, the first connecting piece and the second connecting piece are in a matching relationship, and specifically adopt a matching relationship realized by clamping, threaded connection, riveting, welding and/or the like.

The rotating shaft device can be used for laminating and fixing the first structural component and the second structural component in a matched relation through the first connecting piece and the second connecting piece, and the specification and the size of the first structural component and the second structural component after being assembled can be changed through adjusting the laminated size; the first structural component and the second structural component can be fixed side by side in a matched relation through the first connecting piece and the second connecting piece, at the moment, the specification size of the first structural component and the second structural component after being assembled can be changed through the distance between the first structural component and the second structural component, so that the rotating shaft device matched with electronic equipment of different specifications is adapted, and the development cost is reduced.

In one embodiment disclosed in the application, the first structural component and the second structural component are fixedly connected in a matched relationship with each other through the first connecting piece and the second connecting piece to form a rotating shaft unit; the rotating shaft device comprises at least two rotating shaft units; at least one third structural component providing a third function, disposed between each two spindle units; wherein the third structural component constitutes the connection unit.

The rotating shaft device comprises at least two rotating shaft units and at least one connecting unit, when the rotating shaft device is assembled, the first structural component and the second structural component are fixedly connected to form the rotating shaft units, and each two rotating shaft units are connected together through the connecting unit formed by the third structural component, so that the rotating shaft device is assembled conveniently.

Specifically, the rotating shaft device adopts two rotating shaft units and a connecting unit, the two rotating shaft units are respectively arranged at two ends of the connecting unit, the rotating shaft units at the two ends are identical in structure and symmetrically arranged, and have identical first structural components and second structural components, and only the first structural components of one structure and the second structural components of one structure need to be researched and developed at the moment, so that development cost is reduced.

In the rotating shaft device disclosed in the above embodiment, the first function includes providing torsion for the first body and the second body of the electronic device that relatively move; the second function comprises providing navigation of motion trail for a flexible display screen of the electronic equipment, wherein the flexible display screen is respectively connected with the first body and the second body; or/and the third function includes providing restraint for the flexible cable circuit board between the first body and the second body.

In the embodiment, at least one first structural component is utilized to form a torsion module to provide torsion for the first body and the second body which move relatively; and forming a track module by utilizing at least one second structural component, and providing navigation of movement tracks for the flexible display screens respectively connected with the first body and the second body.

The support connection module is formed by at least one third structural component, so that constraint can be provided for the flexible cable circuit board between the first body and the second body. Of course, the third function may also be a connection function for connecting two spindle units only, but may also include other functions such as providing support for a flexible display screen.

The electronic equipment is a flexible screen computer, a flexible screen mobile phone or other equipment adopting a flexible display screen, and the flexible display screen can be a folding screen which is folded through overturning, and can also be a flexible curled screen which is stretched through curling and unwinding.

When the flexible display screen is a folding screen, the track module provides navigation of a motion track for overturning the folding screen, so that the folding screen is switched between an unfolding posture and a folding posture; in the unfolded state, the whole folding screen meets the coplanar condition, and the screen is in a use state; at the folding gesture, the part at folding screen both ends satisfies folding condition, and the mid portion is the bending state to make the folding screen be in the receipts and close the state, conveniently carry and protect the flexible screen and prevent that the flexible screen from advancing grey.

When the flexible display screen is a flexible curled screen, the track module provides navigation of a motion track for sliding of the telescopic end of the flexible curled screen, so that the flexible curled screen is switched between an extended posture and a curled posture; in the extended posture, the telescopic end of the flexible curled screen slides to a working position along the slideway on the first body of the electronic equipment, so that the screen is extended and is in a use state; in the rolled-up posture, the flexible rolled screen is accommodated in an accommodating cavity of the electronic equipment, and the flexible screen is protected and prevented from being gray.

In another embodiment disclosed in the application, the first structural component is a rotating shaft unit, and the second structural component is a connecting unit; the rotating shaft device comprises at least two rotating shaft units and a connecting unit positioned between every two rotating shaft units. The rotating shaft device of the embodiment comprises at least two rotating shaft units and at least one connecting unit, and when the rotating shaft device is assembled, every two first structural components are connected together through the connecting unit formed by the second structural components, so that the rotating shaft device is assembled conveniently.

Specifically, the rotating shaft device adopts two first structural components and a second structural component to form two rotating shaft units and a connecting unit, the two first structural components are respectively arranged at two ends of the second structural component, the two first structural components are identical in structure and symmetrically arranged, and only the first structural component of one structure is required to be researched and developed at the moment, so that development cost is reduced.

In the rotating shaft device disclosed in the above embodiment, the first function includes providing torsion for the first body and the second body that move relatively to the electronic device and providing navigation of a movement track for the flexible display screen of the electronic device; the second function includes providing restraint for the flexible cable circuit board between the first body and the second body.

In the embodiment, at least one first structural component is utilized to form the rotating shaft unit, so that torsion is provided for the first body and the second body which move relatively, and meanwhile, navigation of movement tracks is provided for the flexible display screen connected with the first body and the second body respectively.

The support connection module is formed by at least one second structural component, so that constraint can be provided for the flexible cable circuit board between the first body and the second body. Of course, the second function may also be a connection function for connecting two spindle units only, but may also include other functions such as providing support for a flexible display screen.

The electronic equipment is a flexible screen computer, a flexible screen mobile phone or other equipment adopting a flexible display screen, and the flexible display screen can be a folding screen which is folded through overturning, and can also be a flexible curled screen which is stretched through curling and unwinding.

When the flexible display screen is a folding screen, at least one first structural component provides torsion for the first body and the second body which move relatively, and simultaneously provides navigation of a movement track for overturning the folding screen, so that the folding screen is switched between an unfolding posture and a folding posture; in the unfolded state, the whole folding screen meets the coplanar condition, and the screen is in a use state; at the folding gesture, the part at folding screen both ends satisfies folding condition, and the mid portion is the bending state to make the folding screen be in the receipts and close the state, conveniently carry and protect the flexible screen and prevent that the flexible screen from advancing grey.

When the flexible display screen is a flexible curled screen, at least one first structural component provides torsion for the first body and the second body which move relatively, and simultaneously provides navigation of a movement track for sliding of the telescopic end of the flexible curled screen, so that the flexible curled screen is switched between an extended posture and a curled posture; in the extended posture, the telescopic end of the flexible curled screen slides to a working position along the slideway on the first body of the electronic equipment, so that the screen is extended and is in a use state; in the rolled-up posture, the flexible rolled screen is accommodated in an accommodating cavity of the electronic equipment, and the flexible screen is protected and prevented from being gray.

The rotating shaft device disclosed by the two embodiments of the application adapts to different functions of physical form transformation of the connected electronic equipment by replacing any rotating shaft unit; or/and, by replacing any one of the connecting units, the rotating shaft device is adapted to the length of the end face where the rotating shaft device is connected with different electronic equipment.

The rotating shaft device comprises rotating shaft units of various structures, and the rotating shaft units of different structures are replaced, so that the rotating shaft device can be matched with 180-degree foldable electronic equipment, 270-degree turnover electronic equipment or 360-degree turnover electronic equipment or electronic equipment with other physical forms, and the universality is improved.

The rotating shaft device comprises connecting units with various lengths, and the rotating shaft device can be adapted to the lengths of the end faces where the rotating shaft device is located by replacing the connecting units with different lengths, so that the universality is improved. Alternatively, the overall length of the rotating shaft device can be adjusted by adjusting the connection position of the connection unit and the rotating shaft unit.

As shown in fig. 1 to 6, in the spindle device disclosed in embodiment 1 of the present application, the first structural assembly includes a first rotating arm 106 that rotates in synchronization with the first body 01 along with the relative rotation of the first body 01 and the second body 02, and the first rotating arm 106 is provided with a first spindle 106b and a first guide portion 106a; along with the relative rotation of the first body 01 and the second body 02 and the second rotating arm 115 which rotates synchronously with the second body 02, a second rotating shaft 115b and a second guiding part 115a are arranged on the second rotating arm 115, and the second rotating shaft 115b and the first rotating shaft 106b meet the parallel condition; the first fixing frame 102 and the second fixing frame 108, and the first rotating shaft 106b are rotatably arranged between the first fixing frame 102 and the second fixing frame 108; the first fixing frame 102 forms a first connecting piece and is provided with a first connecting part for fixedly connecting the second structural component; a first drive cam shaft 109 drivingly connected to the first rotating arm 106 via a first cam arm 105, the first cam arm 105 being fixed to the first drive cam shaft 109; a second driving cam shaft 113 drivingly connected to the second rotating arm 115 via a second cam arm 116, the second cam arm 116 being fixed to the second driving cam shaft 113; a third mount 111 disposed on the opposite side of the second mount 108 from the first mount 102, the first and second drive camshafts 109 and 113 rotatably penetrating through the third mount 111, the second mount 108 and the first mount 102 in sequence; a first spring 110 and a second spring 112 which can cooperate with the second fixing frame 108 and the third fixing frame 111 to generate torsion, and are both positioned between the second fixing frame 108 and the third fixing frame 111, wherein the first spring 110 is sleeved on the first driving cam shaft 109, and the second spring 112 is sleeved on the second driving cam shaft 113; the first driving gear 107 is fixedly sleeved on the first driving cam shaft 109, and the first driving gear 107 can generate friction damping force with the first friction cam on the second fixing frame 108; the second driving gear 114 is fixedly sleeved on the second driving cam shaft 113, and the second driving gear 114 can generate friction damping force with the second friction cam on the second fixing frame 108; at least one driven gear 104 drivingly connected to the first driving gear 107 and the second driving gear 114, the driven gear 104 being provided on the driven shaft 103, the driven shaft 103 being rotatably provided between the first mount 102 and the second mount 108.

In this embodiment 1, the first structural component forms the torsion module B, and during the relative movement of the first body 01 and the second body 02, the first rotating arm 106 rotates synchronously with the first body 01 through the rotation of the first rotating shaft 106B around the fixing frame, the second rotating arm 115 rotates synchronously with the second body 02 through the rotation of the second rotating shaft 115B around the fixing frame, at this time, the first rotating shaft 106B rotates with the first transmission cam shaft 109 through the first cam arm 105, and the second rotating shaft 115B rotates with the second transmission cam shaft 113 through the second cam arm 116; the first driving cam shaft 109 and the second driving cam shaft 113 respectively drive the first spring 110 and the second spring 112 to twist relative to the second fixing frame 108 and the third fixing frame 111 to generate torsion, and respectively drive the first driving gear 107 and the second driving gear 114 to rotate, wherein the first driving gear 107 and the first friction cam on the second fixing frame 108 generate friction damping force, the second driving gear 114 can generate friction damping force with the second friction cam on the second fixing frame 108, and meanwhile, the first driving gear 107 and the second driving gear 114 drive the driven gear 104 to rotate to generate friction damping force between the gears; the torsion force and the friction damping force provide torsion force for the first body 01 and the second body 02 which move relatively, so that the movement stability is good.

The first fixing frame 102 of the first structural component forms a first connecting piece, and is fixedly connected with the second structural component in a matched relationship through a first connecting part of the first fixing frame 102.

It should be understood that the first structural component of the present application may also provide torsion force to the first body 01 and the second body 02 that relatively move through other structures, such as a plurality of stacked friction plates, etc., which are not specifically limited herein.

In a further technical solution, as shown in fig. 3, the second structural component includes a first sliding block 117 fixedly connected to the first body 01, and a first sliding portion slidably engaged with the first guiding portion 106a is disposed on the first sliding block 117; a second sliding block 121 fixedly connected with the second body 02, wherein a second sliding part in sliding fit with the second guiding part 115a is arranged on the second sliding block 121; a reference block 119 located between the first slider 117 and the second slider 121, the reference block 119 being provided with a first arc-shaped guide projection and a second arc-shaped guide projection, the reference block 119 constituting a second connecting piece for being in a fitting relation with the first fixing frame 102, and being provided with a second connecting portion for being fixedly connected with the first connecting portion; a first connecting arm 118 having one end rotatably connected to the first slider 117 and the other end rotatably connected to the first arc-shaped guide projection; a second connecting arm 120, one end of which is rotatably connected with the second sliding block 121, and the other end of which is rotatably connected with the second arc-shaped guide protrusion; in the process of the relative movement of the first body 01 and the second body 02, the first sliding portion slides along the first guiding portion 106a to synchronously drive the first connecting arm 118 to rotate around the first arc guiding protrusion, and meanwhile, the second sliding portion slides along the second guiding portion 115a to synchronously drive the second connecting arm 120 to rotate around the second arc guiding protrusion, so as to provide the flexible display screen with the navigation of the movement track from the folded posture to the unfolded posture.

As shown in fig. 1 and 4, the third structural assembly includes a mounting housing 101 having a mounting cavity for mounting the spindle units, a third fixing bracket 111 and a reference block 119 fixed to the mounting housing 101, and a portion of the mounting housing 101 between the two spindle units providing constraint for the flexible cable circuit board; a first support plate 123 and a second support plate 124 which are arranged at the opening of the installation shell 101, wherein the first support plate 123 is fixedly connected with the first connecting arm 118, the second support plate 124 is fixedly connected with the second connecting arm 120, the first support plate 123 is provided with a first arc-shaped track for rotationally connecting with the first body 01, and the second support plate 124 is provided with a second arc-shaped track for rotationally connecting with the second body 02; wherein in the unfolded posture, the first support plate 123 and the second support plate 124 satisfy a coplanar condition capable of supporting a middle portion of the flexible display screen; in the folded posture, the first support plate 123 and the second support plate 124 are oppositely disposed at both sides of the middle portion, and the first support plate 123 and the second support plate 124 are fitted to define an accommodation space accommodating the middle portion in the folded state.

In this embodiment 1, the second structural component constitutes the track module a; the third structural component constitutes a support connection module providing restraint for the flexible cable circuit board by the portion of the mounting housing 101 located between the two spindle units.

When the rotating shaft device is assembled, the first connecting part of the first fixing frame 102 serving as the first connecting piece and the second connecting part of the reference block 119 serving as the second connecting piece are fixedly connected in a matched relation, and the fixing is realized by adopting the clamping matching of the bulge and the groove, and of course, other modes of fixed connection can be adopted; simultaneously, the first guide part 106a of the first rotating arm 106 is in sliding fit with the first sliding part of the first sliding block 117, the second guide part 115a of the second rotating arm 115 is in sliding fit with the second sliding part of the second sliding block 121, the guide part is specifically a guide protrusion, the sliding part is specifically an inclined chute, the inclined chute is provided with a detachable stop block 122, the guide protrusion is placed in the inclined chute by removing the stop block 122, and then the stop block 122 is installed to prevent the guide protrusion from being separated from the inclined chute; thereby realizing that the track module A and the torsion module B are assembled into a rotating shaft unit; then, the third fixing frame 111 of the first structural component is locked and attached on the mounting shell 101 through screws, so that the torsion module B is fixedly connected with the connecting unit; the reference block 119 of the second structural component is locked and attached on the mounting shell 101 through a screw, so that the fixed connection between the track module A and the connecting unit is realized; finally, the first supporting plate 123 is fixedly connected with the first connecting arm 118, and the second supporting plate 124 is fixedly connected with the second connecting arm 120, so that a rotating shaft device is formed, assembly is convenient, and each part is not required to be assembled independently.

In order to facilitate the constraint of the flexible cable circuit board at the portion of the installation housing 101 between the two spindle units, the first support plate 123 and the second support plate 124 may not be installed first, and after the first support plate 123 is rotationally connected with the first body 01 and the second support plate 124 is rotationally connected with the second body 02, as shown in fig. 6, the first support plate 123 is fixedly connected with the first connecting arm 118, and the second support plate 124 is fixedly connected with the second connecting arm 120.

As shown in fig. 5-6, in application, the first sliding block 117 is fixedly connected with the first body 01, and the second sliding block 121 is fixedly connected with the second body 02; simultaneously with first backup pad 123 and first body 01 swivelling joint, second backup pad 124 and second body 02 swivelling joint, specifically, be fixed with first rotating block 03 on the first body 01, realize first backup pad 123 and first body 01 swivelling joint through the first arc track sliding fit of first arc wall and first backup pad 123 of first rotating block 03, be fixed with second rotating block 04 on the second body 02, realize second backup pad 124 and second body 02 swivelling joint through the second arc wall and the second arc track sliding fit of second backup pad 124 of second rotating block 04.

In the process of the relative movement of the first body 01 and the second body 02, the first sliding block 117 moves together with the first body 01, and the second sliding block 121 moves together with the second body 02, on the one hand, the first sliding block 117 slides relative to the first rotating arm 106 and drives the first rotating arm 106 of the first structural component to rotate while sliding along the first guiding portion 106a, and the second sliding block 121 slides relative to the second rotating arm 115 and drives the second rotating arm 115 of the second structural component to rotate while sliding along the second guiding portion 115a, so as to drive the torsion module B to provide torsion; on the other hand, the first slider 117 synchronously drives the first connecting arm 118 to rotate around the first arc-shaped guiding protrusion, and the second slider 121 synchronously drives the second connecting arm 120 to rotate around the second arc-shaped guiding protrusion, and cooperates with the sliding of the first sliding portion along the first guiding portion 106a and the sliding of the second sliding portion along the second guiding portion 115a to provide a motion track for the flexible display screen to switch from the folded posture to the unfolded posture.

The track module A of this embodiment can also remove when realizing rotating through the arc structure, can reduce the displacement to make the structure compacter.

Specifically, the rotating shaft device is adapted between the first body 01 and the second body 02 used for connecting two ends of the folding screen, and corresponds to the middle bendable part of the folding screen; wherein, the first body 01 and the second body 02 are in the unfolding gesture, the first supporting plate 123 and the second supporting plate 124 meet the coplanarity condition, and can support the middle part of the flexible display screen; the first body 01 and the second body 02 are in a folded posture, the first support plate 123 and the second support plate 124 are oppositely arranged at both sides of the middle portion, and the first support plate 123 and the second support plate 124 are matched to enclose an accommodating space accommodating the middle portion in a folded state.

In this embodiment 1, at least one of the track module a, the torsion module B and the support connection module is of multiple specifications, and by changing the specification of one of the modules, a spindle device suitable for different electronic devices can be formed.

As shown in fig. 7 to 14, in the spindle device disclosed in embodiment 2 of the present application, the first structural assembly includes a first support plate 206 that rotates in synchronization with the first body as the first body rotates relative to the second body; a second support plate 207 rotated in synchronization with the second body along with the relative rotation of the first body and the second body; a support bottom case 202 forming a first connection member provided with a first connection portion for fixedly connecting the second structural member, and a first support plate 206 and a second support plate 207 rotatably connected to both ends of the support bottom case 202, respectively; a mounting cover 205 fastened to the support bottom case 202 to form a mounting cavity; the first rotating shaft 210 and the second rotating shaft 212 are arranged in the mounting cavity, and the first rotating shaft and the second rotating shaft meet parallel condition; the first fixing frame 211, the second fixing frame 216 and the third fixing frame 219 which are sequentially arranged are fixed together with the supporting bottom shell 202 and the mounting cover 205; the friction disc 214 between the first and second holders 211, 216, and the first and second shafts 210, 212 rotatably pass through the first and second holders 211, 214, the second and third holders 216, 219 in sequence; a first spring 209 and a second spring 213 which can cooperate with the first fixing frame 211 and the friction disk 214 to generate torsion, and are both positioned between the first fixing frame 211 and the friction disk 214, the first spring 209 is sleeved on the first rotating shaft 210, and the second spring 213 is sleeved on the second rotating shaft 212; the first driving gear 220 is fixedly sleeved on the first rotating shaft 210; the second driving gear 217 is fixedly sleeved on the second rotating shaft 212, and the first driving gear 220 and the second driving gear 217 are positioned between the second fixing frame 216 and the third fixing frame 219; a first cam 208 fixedly sleeved on the first rotating shaft 210; the second cam 215 is fixedly sleeved on the second rotating shaft 212, the first cam 208 and the second cam 215 are both positioned between the friction disc 214 and the second fixing frame 216, the first cam 208 can generate friction damping force with the first friction cam on the friction disc 214, and the second cam 215 can generate friction damping force with the second friction cam on the friction disc 214; at least one driven gear 218 in transmission connection with the first driving gear 220 and the second driving gear 217, and two ends of the driven gear 218 are respectively and rotatably connected with the second fixing frame 216 and the third fixing frame 219; a first guide bar 204 having a first end fixedly connected to the first rotation shaft 210 and a second end forming a first guide portion for rotating in synchronization with the first body and guiding a sliding direction of the first body; a second guide rod 203, the first end of which is fixedly connected with the second rotating shaft 212, and the second end of which forms a second guide part for rotating synchronously with the second body and guiding the sliding direction of the second body; in the relative movement process of the first body and the second body, the movement track navigation is provided for the flexible display screen to be switched from the folding posture to the unfolding posture by the sliding of the first body along the first guide part and the sliding of the second body along the second guide part; simultaneously, through synchronous rotation of the first guide rod 204 and the first body, the rotation of the first rotating shaft 210 is connected, and synchronous rotation of the second guide rod 203 and the second body, the rotation of the second rotating shaft 212 is connected, so that torsion is provided for the first body and the second body;

As shown in fig. 7 and 13, the second structural component includes at least two intermediate support blocks 201, and the lengths of the intermediate support blocks 201 along the rotation axis direction of the rotation shaft device are different, the intermediate support blocks 201 form second connectors which are mutually matched with the support bottom shell 202, and two ends of the intermediate support blocks 201 form second connecting parts which can be stacked with the first connecting parts; the hollow part in the middle of the middle supporting block 201 provides constraint for the flexible cable circuit board, and the middle supporting block 201 and the supporting bottom shell 202 can be matched to form a coplanar middle supporting surface; wherein in the unfolded posture, the first support plate 206, the second support plate 207 and the intermediate support surface satisfy a coplanar condition, capable of supporting an intermediate portion of the flexible display screen; in the folded posture, the first support plate 206, the second support plate 207 are oppositely disposed on both sides of the intermediate support surface, and the first support plate 206, the second support plate 207 and the intermediate support surface cooperate to enclose an accommodation space accommodating the intermediate portion in the folded state.

In this embodiment 2, the first structural member constitutes the rotation shaft unit, and the second structural member constitutes the support connection module, i.e., the connection unit, which provides restraint to the flexible cable circuit board through the hollow portion in the middle of the intermediate support block 201.

When the rotating shaft device is assembled, the first connecting part of the supporting bottom shell 202 serving as the first connecting piece and the second connecting parts at two ends of the middle supporting block 201 serving as the second connecting piece are fixedly connected in a laminated relation, and the fixing is realized by adopting the locking fit of the screw and the waist-shaped hole, and of course, other modes of fixed connection can be adopted; therefore, the rotating shaft unit and the connecting unit are fixedly connected to form the rotating shaft device, the assembly is convenient, and each part is not required to be assembled independently.

In application, one end of the first support plate 206 far away from the support bottom shell 202 is slidably connected with the first body, and one end of the second support plate 207 far away from the support bottom shell 202 is slidably connected with the second body through matching of protrusions and grooves; and simultaneously, the first guiding part at the second end of the first guiding rod 204 is in sliding connection with the first body, and the second guiding part at the second end of the second guiding rod 203 is in sliding connection with the second body.

During the relative movement of the first body and the second body, the first support plate 206 and the first guide part slide relative to the first body while being connected with the first body, the second support plate 207 and the second guide part slide relative to the second body while being connected with the second body, and at this time, under the action of the first body, the first support plate 206 and the first guide part both rotate; under the action of the second body, both the second support plate 207 and the first guide part rotate; thus, the first guiding portion drives the first guiding rod 204 to rotate synchronously with the first body along with the first rotating shaft 210, and the second guiding portion drives the second guiding rod 203 to rotate synchronously with the second body along with the second rotating shaft 212; as shown in fig. 11-12, the first rotating shaft 210 and the second rotating shaft 212 respectively drive the first spring 209 and the second spring 213 to twist relative to the first fixing frame 211 and the friction disc 214 to generate torsion, and on the other hand, the first cam 208 on the first rotating shaft 210 and the first friction cam on the friction disc 214 generate friction damping force; the second cam 215 on the second rotating shaft 212 generates a friction damping force with the second friction cam on the friction disk 214; simultaneously, the first driving gear 220 and the second driving gear 217 are respectively driven to rotate, and the driven gear 218 is driven to rotate, so that friction damping force is generated between the gears; the torsion force and the friction damping force provide torsion force for the first body and the second body which move relatively, so that the motion stability is good.

Meanwhile, in the relative movement process of the first body and the second body, the movement track navigation is provided for the flexible display screen by the sliding of the first body along the first guide part and the sliding of the second body along the second guide part.

Specifically, the rotating shaft device is adapted to be connected between the first body and the second body at two ends of the folding screen, and corresponds to the bendable part in the middle of the folding screen; by the synchronous rotation of the first support plate 206 and the first body and the synchronous rotation of the second support plate 207 and the second body, the first support plate 206 and the second support plate 207 are converted in two postures, so that in the unfolding posture, the first support plate 206, the second support plate 207 and the middle support surface meet the coplanarity condition, and the middle part of the flexible display screen can be supported, as shown in fig. 13; in the folded posture, the first support plate 206, the second support plate 207 are oppositely disposed on both sides of the intermediate support surface, and the first support plate 206, the second support plate 207 and the intermediate support surface cooperate to enclose an accommodation space accommodating the intermediate portion in the folded state, as shown in fig. 14.

It is understood that the spindle unit of the present application may also provide torsion to the first body and the second body that move relatively through other structures, such as a plurality of stacked friction plates, etc., which are not specifically limited herein.

In this embodiment 2, the lengths of the middle supporting blocks 201 are at least two and are different along the rotation axis direction of the rotating shaft device, the middle supporting blocks 201 are detachably connected with the rotating shaft units through screws, and the two rotating shaft units are connected by selecting the positions of the middle supporting blocks 201 with different lengths or the waist-shaped holes locked by the adjusting screws, so that the rotating shaft device applicable to different electronic devices can be formed, and only the rotating shaft units with one structure need to be developed, thereby reducing the development cost.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.