CN113027899A

CN113027899A - Synchronous hinge

Info

Publication number: CN113027899A
Application number: CN201911251141.XA
Authority: CN
Inventors: 姚旭鸿; 张谟宇
Original assignee: Shenzhen Fushida Communication Co ltd; First Dome Corp
Current assignee: Shenzhen Fushida Communication Co ltd; First Dome Corp
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2021-06-25

Abstract

A synchronous hinge comprises at least one synchronous module. The synchronous moving module comprises a synchronous moving base, two synchronous moving parts and a transmission unit, wherein the synchronous moving base is provided with a containing groove, two guide grooves which are respectively positioned in the front and the rear of the containing groove along the front and rear directions and communicated with the containing groove, the two synchronous moving parts are respectively arranged in the two guide grooves in a way of rotating around two rotation axes relative to the synchronous moving base, the two rotation axes are parallel to the front and rear directions and are mutually spaced along the left and right directions vertical to the front and rear directions, each synchronous moving part is provided with a synchronous moving body arranged in the corresponding guide groove, the transmission unit is arranged in the containing groove and extends into the two guide grooves, and the transmission unit is connected to the synchronous moving bodies of the two synchronous moving parts so that the two synchronous moving parts can reversely rotate around the two.

Description

Synchronous hinge

Technical Field

The present invention relates to a hinge, and more particularly, to a synchronous-action hinge.

Background

In recent years, flexible screens are widely used in electronic products (such as mobile phones, tablet computers, etc.) in daily life, which are generally provided with hinges to be unfolded or folded, and the electronic products are divided into an outward folding type and an inward folding type according to different folding modes.

Disclosure of Invention

It is an object of the present invention to provide a co-acting hinge that ameliorates at least one of the problems of the prior art.

In some embodiments, the co-acting hinge of the present invention is adapted to be disposed between two bodies, and the co-acting hinge includes at least one co-acting module. The synchronous moving module comprises a synchronous moving base, two synchronous moving parts and a transmission unit, the synchronous moving base is provided with a containing groove and two guide grooves which are respectively positioned in the front and the rear of the containing groove along the front and rear direction and communicated with the containing groove, the two synchronous moving parts are respectively arranged on the two guide grooves in a way of rotating around two rotation axes relative to the synchronous moving base, the two rotation axes are parallel to the front and rear direction and are mutually spaced along the left and right direction vertical to the front and rear direction, each synchronous moving part is provided with a synchronous moving body arranged in the corresponding guide groove and a connecting body which extends from the position of the synchronous moving body far away from the two rotation axes, is positioned outside the synchronous moving base and is used for being arranged in the corresponding machine body, the transmission unit is arranged in the containing groove and extends into the two guide grooves, and the transmission unit is connected to the synchronous moving bodies of the two synchronous moving parts so that the two synchronous moving parts can respectively rotate around the synchronous moving base The two rotation axes reversely and synchronously rotate and link the two machine bodies to change between the unfolding state and the folding state, and the two machine bodies keep a distance at the folding position when in the folding state.

In some embodiments, the synchronizing body of each synchronizing member has an arc-shaped inner tooth surface located in the corresponding guide groove and formed around the corresponding rotation axis, the transmission unit has two synchronizing gears and two idle gears, the two synchronizing gears are disposed in the accommodating groove of the synchronizing base at intervals along the left-right direction, the two synchronizing gears extend to the two guide grooves to be connected to the synchronizing bodies of the two synchronizing members, each synchronizing gear has a first gear portion disposed in the accommodating groove and capable of rotating around an axis parallel to the front-rear direction, and a second gear portion capable of rotating synchronously with the first gear portion, connected to the first gear portion, and extending into the corresponding guide groove along the front-rear direction to engage with the arc-shaped inner tooth surface of the corresponding synchronizing member, the two idle gears are disposed in the accommodating groove in the left-right direction and engaged with the first gear portion of the two synchronizing gears And (3) removing the solvent.

In some implementation aspects, each guide groove of the co-motion base is provided with a first guide structure, the co-motion body of each co-motion member further has a second guide structure that is in concave-convex fit with the first guide structure of the corresponding guide groove, and the first guide structures of the two guide grooves and the second guide structures of the two co-motion members respectively extend around the two rotation axes, so that the two co-motion members can respectively rotate around the two rotation axes relative to the co-motion base.

In some implementations, the two rotation axes are located above the co-acting base along an up-down direction perpendicular to the front-back direction and the left-right direction.

In some implementation aspects, the two identical moving members are rotatable between a first angle position and a second angle position relative to the identical moving base to link the two machine bodies to change between the unfolded state and the folded state, in the first angle position, the identical moving bodies of the two identical moving members are accommodated in the guide groove, and the connecting bodies of the two identical moving members are far away from each other, and in the second angle position, the identical moving body parts of the two identical moving members protrude above the identical moving base, and the connecting bodies of the two identical moving members are close to each other.

In some embodiments, the portable electronic device further includes a base extending along the front-back direction, and at least one torsion module arranged along the front-back direction with the moving module, the moving base of the moving module is disposed on the base, the torsion module includes a torsion base, two connecting rods, and two torsion units, the torsion base is disposed on the base, the two connecting rods are pivotally disposed on the torsion base and respectively configured to pivot with the two bodies relative to the torsion base, the torsion units are respectively connected between the two connecting rods and the torsion base, each torsion unit includes a pivot shaft and an elastic member, the pivot shaft is disposed through the corresponding connecting rod and the torsion base and pivots synchronously with the corresponding connecting rod, and the pivot shaft has a setting portion penetrating out of the base, and an abutting head portion formed at a terminal of the setting portion and spaced from the torsion base, the elastic piece is sleeved on the setting part and is compressively clamped between the abutting head and the torsion base.

In some embodiments, the torsion module further includes a positioning piece located at the torsion base and located at a position offset from the setting portion of the pivot of the two torsion units, each torsion unit further includes a positioning piece located at the setting portion of the pivot and clamped between the elastic member and the positioning piece, the positioning piece has two first positioning structures facing the positioning piece, each positioning piece has a second positioning structure facing the corresponding first positioning structure and used for being matched with the first positioning structure, and when the two bodies are in at least one of the unfolding state and the folding state, the first positioning structure of the positioning piece is matched with the second positioning structure of the positioning piece in a concave-convex manner.

In some embodiments, each torsion unit further includes two friction pads pivotally sleeved on the setting portion of the pivot synchronously with the pivot, one of the two friction pads is sandwiched between the abutting head of the pivot and the elastic member, and the other is sandwiched between the torsion base and the positioning plate.

In some embodiments, each link of the torque module has a first rod pivotally disposed on the torque base, and a second rod slidably disposed on the first rod and configured to be disposed on the corresponding body.

In some embodiments, the portable electronic device further includes two cover plates extending along the front-back direction and respectively disposed on left and right sides of the base, each cover plate can rotate around an adjacent rotation axis relative to the base, and the cover plates are respectively connected to the first rod of the connecting rod of the torque module to interlock with the connecting rod and rotate relative to the base, and when the two bodies are switched between the unfolded state and the folded state, the base and the two cover plates cover the interlock module and the torque module together.

In some embodiments, the first rod of each link has a first slide rail, and each cover has a first slider slidably protruding from the first slide rail.

In some embodiments, the first rod of each connecting rod further has a second sliding rail located outside the first sliding rail and extending outward, and the second rod of each connecting rod has a second sliding block slidably protruding from the second sliding rail of the corresponding first rod.

The two bodies can reversely and synchronously rotate around the two rotating axes which are spaced with each other respectively relative to the synchronous moving base and are respectively provided for the two bodies to be arranged, so that the two bodies reversely and synchronously rotate around the two rotating axes respectively when the two bodies are changed between the unfolding state and the folding state, and further, the two bodies can still keep a space at the folding position when in the folding state, thereby avoiding the damage caused by the over-small curvature radius of the bending position of the flexible screen arranged on the two bodies.

Drawings

Other features and effects of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of an embodiment of the co-acting hinge of the present invention disposed between two bodies in an expanded state;

FIG. 2 is an exploded perspective view of FIG. 1 illustrating the embodiment in assembled relation with the two bodies;

FIG. 3 is a further exploded perspective view of FIG. 2;

FIG. 4 is a perspective view of the co-acting module of the illustrated embodiment with the co-acting member of the co-acting module in a first angular position;

FIG. 5 is an exploded perspective view of FIG. 4;

FIG. 6 is a top view of the co-acting module of the illustrated embodiment with the co-acting members of the co-acting module in a first angular position;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6 illustrating the mating relationship of the first and second guide structures of the co-acting module;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 6 illustrating the mating relationship of the first and second guide structures of the co-acting module;

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 6 illustrating the connection of the co-moving members of the co-moving module to the co-moving gears;

FIG. 10 is a cross-sectional view taken along line D-D of FIG. 6 illustrating the connection of the synchronizing gears of the synchronizing module to the idler gear;

FIG. 11 is a cross-sectional view of the co-acting module of the embodiment, illustrating the connection relationship between the left co-acting member of the co-acting module and the co-acting gear, wherein the co-acting member of the co-acting module is at a second angular position;

FIG. 12 is a cross-sectional view of the co-acting module of the illustrated embodiment with the co-acting members of the co-acting module in a second angular position;

FIG. 13 is a cross-sectional view of the homokinetic module of the embodiment, illustrating the connection of the homokinetic member on the right side of the homokinetic module with the homokinetic gear, wherein the homokinetic member of the homokinetic module is at a second angular position;

fig. 14 is a perspective view of the torque module of the embodiment corresponding to two bodies in the unfolded state;

FIG. 15 is an exploded perspective view of FIG. 14;

fig. 16 is a perspective view of the torque module according to the embodiment when the two bodies are folded;

fig. 17 is a partial perspective view of the embodiment corresponding to the two machine bodies in the unfolded state, illustrating the connection relationship between the torsion module and the two cover plates of the embodiment;

FIG. 18 is a partial top view of the embodiment;

FIG. 19 is a cross-sectional view taken along line E-E of FIG. 18 illustrating the mating relationship of the cover plates to the base;

fig. 20 is a partial perspective view of the embodiment corresponding to the two bodies in the folded state, illustrating the connection relationship between the torsion module and the two cover plates of the embodiment; and

fig. 21 is a perspective view of the embodiment, wherein the embodiment is disposed between two bodies and the two bodies are in a folded state.

Detailed Description

Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.

Referring to fig. 1 to 3, an embodiment of the same-motion hinge 100 of the present invention is suitable for being disposed between two bodies 200, each body 200 has a disposing surface 201 at a top portion thereof and suitable for disposing a flexible screen (not shown), and the same-motion hinge 100, the two bodies 200, and the flexible screen can jointly form a foldable electronic device or a handheld electronic device, such as a mobile phone, a tablet computer, a notebook computer, etc. The synchronous hinge 100 includes a base 1, two synchronous modules 2, two torsion modules 3, and two cover plates 4.

Referring to fig. 2 to 6, the base 1 is in a shell shape and has a base body 11 extending along a front-rear direction D1, and two plate bodies 12 extending upward from front and rear ends of the base body 11 along an up-down direction D2. The seat body 11 of the base 1 is curved upward along the up-down direction D2 at both sides in a left-right direction D3 perpendicular to the front-back direction D1, and the two plate bodies 12 are substantially semicircular. The two identical modules 2 and the two torque modules 3 are disposed on the seat body 11 of the base 1 and arranged along the front-back direction D1, wherein the two identical modules 2 are located between the two torque modules 3, and the two identical modules 2 are spaced apart from each other to allow a circuit component (not shown) connected between the two bodies 200 to pass through. It should be noted that the number of the synchronizing modules 2 and the torsion modules 3 is not limited to two, but may be one or more than three in other implementation modes, and the number of the two modules may also be different from each other, and even in a modified embodiment, the synchronizing hinge 100 may not include the torsion modules 3, which is not limited in this embodiment.

Each of the synchronous modules 2 includes a synchronous base 21, two synchronous members 22, and a transmission unit 23. The co-motion base 21 is disposed on the seat body 11 of the base 1 and has a receiving slot 211 and two guiding slots 212 respectively located in front of and behind the receiving slot 211 along the front-back direction D1 and communicated with the receiving slot 211, the two co-motion members 22 are respectively disposed in the two guiding slots 212 rotatably around two rotation axes a relative to the co-motion base 21, the two rotation axes a are parallel to the front-back direction D1 and spaced apart from each other along the left-right direction D3, in this embodiment, the two rotation axes a are located above the co-motion base 21 along the up-down direction D2. Each of the two cooperating members 22 has a cooperating body 221 disposed in the corresponding guiding slot 212, and a connecting body 222 extending outward from the cooperating body 221 away from the two rotation axes a along the left-right direction D3 and located outside the cooperating base 21 and disposed on the corresponding machine body 200, wherein the two machine bodies 200 are respectively disposed on the connecting bodies 222 of the two cooperating bodies 221 and arranged side by side along the left-right direction D3. Referring to fig. 7 to 8, each of the guiding grooves 212 of the moving base 21 is provided with a first guiding structure 212a, the moving body 221 of each of the moving members 22 further has a second guiding structure 221a that is concave-convex matched with the first guiding structure 212a of the corresponding guiding groove 212, and the first guiding structures 212a of the two guiding grooves 212 and the second guiding structures 221a of the two moving members 22 respectively extend around the two rotation axes a, so that the two moving members 22 can respectively rotate around the two rotation axes a relative to the moving base 21. In detail, the first guiding structure 212a includes a first protrusion 212b and a first groove 212c, the second guiding structure 221a includes a second groove 221b that is concave-convex matched with the first protrusion 212b of the first guiding structure 212a, and a second protrusion 221c that is concave-convex matched with the first groove 212c of the first guiding structure 212a, the first protrusion 212b, the first groove 212c, the second protrusion 221c, and the second groove 221b all extend around the corresponding rotation axis a, and the structures of the first guiding structure 212a and the second guiding structure 221a can be adjusted according to the requirement, which is not limited by the embodiment.

Referring to fig. 4, 5, 9 and 10, the transmission unit 23 is disposed in the containing groove 211 and extends into the two guiding grooves 212, and the transmission unit 23 is connected to the co-moving bodies 221 of the two co-moving members 22 so that the two co-moving members 22 can rotate around the two rotation axes a in opposite directions and synchronously relative to the co-moving base 21. In detail, the synchronizing body 221 of each synchronizing member 22 has an arc-shaped inner tooth surface 221D located in the corresponding guiding slot 212 and formed around the corresponding rotation axis a, and in the present embodiment, the arc-shaped inner tooth surfaces 221D of the two synchronizing members 22 respectively extend around the two rotation axes a and are offset from each other in the left-right direction D3. The transmission unit 23 has two identical gears 231, and two idler gears 232, the two simultaneous movement gears 231 are disposed in the containing groove 211 of the simultaneous movement base 21 at intervals along the left-right direction D3, and the two simultaneous gears 231 extend to the two guiding grooves 212 respectively to be connected to the simultaneous movement bodies 221 of the two simultaneous movement members 22 respectively, each simultaneous gear 231 has a first gear portion 231a disposed in the containing groove 211 and capable of rotating around an axis parallel to the front-rear direction D1, and a second gear portion 231b connected to the first gear portion 231a in a manner of being synchronized with the first gear portion 231a in rotation and extending into the corresponding guide groove 212 in the front-rear direction D1 to engage with the arc-shaped inner tooth surface 221D of the corresponding movable piece 22, the two idle gears 232 are disposed in the accommodating groove 211 in the left-right direction D3 in a row and engaged with the first gear parts 231a of the two synchronizing gears. The synchronizing gear 231 may be formed by assembling the first gear 231a and the second gear 231b, which are independent of each other, to each other, for example.

Referring to fig. 9 to 13, the two movable parts 22 can rotate around the two rotation axes a in opposite directions relative to the movable base 21 through the transmission unit 23, and the two movable parts 22 can rotate between a first angle position and a second angle position relative to the movable base 21 to link the two bodies 200 to change between an expanded state and a collapsed state. As shown in fig. 9 to 10, in the first angular position, the moving body 221 of the two moving parts 22 is accommodated in the guiding slot 212, and the connecting bodies 222 of the two moving parts 22 are away from each other. As shown in fig. 11 to 13, in the second angular position, the moving bodies 221 of the two moving parts 22 partially protrude above the moving base 21, and the connecting bodies 222 of the two moving parts 22 approach each other. Specifically, when the two bodies 200 are to be changed from the unfolded state to the folded state, the left and right bodies 200 are respectively rotated along a first rotation direction R1 and a second rotation direction R2 opposite to the first rotation direction R1, the left body 200 drives the left synchronizing gear 22 to rotate around the left rotation axis a along the first rotation direction R1, and the left synchronizing gear 231 is driven to rotate along the first rotation direction R1. Similarly, the right housing 200 will rotate the right homodyne 22 in the second rotational direction R2 about the right rotational axis a, and in turn will rotate the right homodyne gear 231 in the second rotational direction R2. At this time, the left one of the idle gears 232 engaged between the same gears 231 rotates in the second rotation direction R2, and the right one of the idle gears 232 rotates in the first rotation direction R1. The idler gears 232 engaged between the synchronization gears 231 make the two synchronization gears 231 rotate at the same angle in the first rotation direction R1 and the second rotation direction R2, respectively, and restrict the two synchronization members 22 and the two machine bodies 200 from synchronously rotating at the same angle in the first rotation direction R1 and the second rotation direction R2, respectively, with respect to the synchronization base 21. And the distance between the two same-moving gears 231 in the left-right direction D3 can be pulled apart by the two idle gears 232, so that the two same-moving gears 231 have better meshing relationship with the arc-shaped inner tooth surfaces 221D of the same-moving members 22 which are staggered with each other in the left-right direction D3, respectively. In addition, the two identical moving parts 22 can drive the two machine bodies 200 to rotate reversely and synchronously around the two rotation axes a at intervals, so that a distance D is kept between the two machine bodies 200 at the folding position in the folding state, thereby preventing the flexible screens (not shown) arranged on the two machine bodies 200 from being damaged due to an excessively small curvature radius at the folding position.

Referring to fig. 2, 14 to 16, each torque module 3 includes a torque base 31, two connecting rods 32, two torque units 33, and a positioning plate 34. The torsion base 31 is disposed on the seat body 11 of the base 1, the two connecting rods 32 are pivotally disposed on the torsion base 31 and are respectively disposed on the two machine bodies 200 to pivot with the two machine bodies 200 relative to the torsion base 31, and the torsion units 33 are respectively connected between the two connecting rods 32 and the torsion base 31. Each torsion unit 33 includes a pivot 331, a resilient member 332, a positioning member 333, and two friction pads 334. The pivot 331 is disposed through the corresponding connecting rod 32 and the torsion base 31 along the front-back direction D1 and pivots synchronously with the corresponding connecting rod 32, the pivot 331 has a setting portion 331a penetrating out of the torsion base 31 and an abutting head portion 331b formed at the end of the setting portion 331a and spaced from the torsion base 31, and the elastic member 332 is sleeved on the setting portion 331a and is compressively sandwiched between the abutting head portion 331b and the torsion base 31. The elastic member 332, which is compressively sandwiched between the abutting head 331b and the torsion base 31, resists the rotation of the pivot 331 relative to the torsion base 31, so as to generate a torsion force resisting the pivoting of the link 32 relative to the torsion base 31, which pivots synchronously with the pivot 331 of the two torsion units 33, thereby enabling the two bodies 200 to be positioned in any state between the unfolded state and the folded state without any stage.

The positioning piece 34 is sleeved on the setting portion 331a of the pivot 331 of the two torsion units 33 and leans against the torsion base 31, and the positioning piece 333 of each torsion unit 33 and the pivot 331 are synchronously and pivotally sleeved on the setting portion 331a of the pivot 331 and clamped between the elastic piece 332 and the positioning piece 34. The positioning piece 34 has two first positioning structures 341 facing the positioning piece 333, each positioning piece 333 has a second positioning structure 333a facing the corresponding first positioning structure 341 and adapted to cooperate with the first positioning structure 341, and when the two bodies 200 are in at least one of the extended state and the retracted state, that is, when the two movable parts 22 (see fig. 9 and 11) are in at least one of the first angular position and the second angular position, the first positioning structure 341 of the positioning piece 34 and the second positioning structure 333a of the positioning piece 333 are in concave-convex cooperation. In detail, each first positioning structure 341 has two concave portions 341a, and each second positioning structure 333a has two convex portions 333b for concave-convex matching with the concave portion 341a, but in other implementation aspects, the first positioning structure 341 may have the convex portions 333b and the second positioning structure 333a may have the corresponding concave portion 341a, which is not limited thereto. In addition, in the embodiment, when the two bodies 200 are in the extended state, that is, when the two movable parts 22 are in the first angular position, the first positioning structure 341 of the positioning plate 34 and the second positioning structure 333a of the positioning part 333 are in concave-convex fit, but in other implementation manners, the first positioning structure 341 and the second positioning structure 333a may also be in concave-convex fit with each other when the two bodies 200 are in other states, for example, the first positioning structure 341 and the second positioning structure 333a may also be in concave-convex fit with each other when the two bodies 200 are in the extended state and the retracted state, which is not limited thereto.

The two friction pads 334 of each torque unit 33 are pivotally sleeved on the setting portion 331a of the pivot 331 synchronously with the pivot 331, one of the two friction pads 334 is sandwiched between the abutting head 331b of the pivot 331 and the elastic member 332, and the other is sandwiched between the torque base 31 and the positioning plate 34. The two friction pads 334 can increase the torque resisting the pivot of the link 32 relative to the torque base 31, which pivots synchronously with the pivot 331 of the two torque units 33, thereby enabling the two bodies 200 to be positioned between the unfolded state and the folded state more stably and steplessly. In addition, for example, the pivot 331 of each torsion unit 33 may be a screw member, and the abutting head 331b of the pivot 331 may be a nut sleeved on the screw member, and the cross section of the pivot 331 is not circular, and the cross section of a hole through which the pivot 331 passes is provided for each component that pivots synchronously with the pivot 331 corresponds to the cross section of the pivot 331.

Referring to fig. 3, 14, 18 and 19, each link 32 of the torque module 3 has a first rod 321 pivotally disposed on the torque base 31, and a second rod 322 slidably disposed on the first rod 321 and configured to be disposed on the corresponding body 200 (see fig. 2). The two cover plates 4 extend along the front-back direction D1 and are respectively disposed on the left and right sides of the base 1, and each cover plate 4 can rotate around the adjacent rotation axis a relative to the base 1. Specifically, the seat body 11 of the base 1 has a flat bottom plate portion 111 extending along the front-back direction D1, and two bent plate portions 112 extending upward from the bottom plate portion 111 in the left-right direction D3, and each bent plate portion 112 extends outward and upward around the adjacent rotation axis a. Each cover plate 4 has a side cover portion 41 extending along the front-back direction D1 and disposed outside the corresponding bent plate portion 112 of the seat body 11, two end cover portions 42 respectively disposed at the front and back ends of the side cover portion 41 and respectively covering the two plate bodies 12 of the seat body 11 in the front-back direction D1, and two guiding portions 43 respectively connected to the two end cover portions 42 and respectively abutting against the inner sides of the two plate bodies 12 in the front-back direction D1. Each plate body 12 of the base body 11 is limited between the corresponding end cover portion 42 and the corresponding guide portion 43, each side cover portion 41 and each guide portion 43 extend around the adjacent rotation axis a, and the bent plate portion 112 of the base body 11 is limited between the corresponding side cover portion 41 and the corresponding guide portion 43, so that each cover plate 4 can rotate outwards and upwards relative to the base 1 around the adjacent rotation axis a.

Referring to fig. 1, 14, 17, 20 and 21, the cover plate 4 is respectively connected to the first rod 321 of the connecting rod 32 of the torque module 3 to be interlocked with the connecting rod 32 and rotate relative to the base 1 along with the corresponding machine body 200, and when the two machine bodies 200 are switched between the unfolded state and the folded state, the base 1 and the two cover plates 4 cover the interlocking module 2 and the torque module 3 together. In detail, each body 200 has an inner space 202, and the inner space 202 has an opening 202a facing the same-motion hinge 100 and corresponding to the corresponding cover 4 and for the corresponding cover 4 to extend into (see fig. 2 for details). The two bodies 200 and the two cover plates 4 both move around the two rotation axes a in a rotating manner, and the two cover plates 4 are driven by the two connecting rods 32, and no matter the two bodies 200 are in the unfolded state or the folded state, at least part of the two cover plates 4 extend into the internal space 202 of the two bodies 200 from the openings 202a of the two bodies 200 and are connected between the base 1 and the two bodies 200, so that the base 1 and the cover plates 4 can cover the homokinetic module 2 and the torque module 3 together and cover the internal space 202 of the two bodies 200 together regardless of the two bodies 200 in the unfolded state or the folded state, thereby beautifying the appearance of the homokinetic hinge 100 and the whole device. In the present embodiment, the first rod 321 of each link 32 has a first sliding rail 321a and a second sliding rail 321b located outside the first sliding rail 321a in the left-right direction D3 and extending outward. Each cover plate 4 further has two first sliders 44 respectively extending from the guiding portions 43 and respectively slidably protruding from the first sliding rails 321a of the corresponding connecting rods 32. The second rod 322 of each link 32 has a second slider 322a slidably protruding from the second sliding rail 321b of the corresponding first rod 321. The connecting rod 32 of the torque module 3 can drive the cover plate 4 to rotate through the cooperation of the first sliding rail 321a and the first sliding block 44, and the first sliding rail 321a extends along the movement track of the first sliding block 44 of the cover plate 4 and can be adjusted as required. In addition, the difference between the first rod 321 of the connecting rod 32 and the motion track of the machine body 200 can be compensated by the cooperation between the second sliding rail 321b and the second sliding block 322 a.

In summary, the two identical moving members 22, which can rotate around the two rotation axes a spaced from each other and are provided for the two machine bodies 200 to be disposed respectively, are used to make the two machine bodies 200 rotate around the two rotation axes a reversely and synchronously when the two machine bodies 200 are changed between the unfolded state and the folded state, so that the two machine bodies 200 can still keep a distance between the folded positions when in the folded state, thereby preventing the flexible screens disposed on the two machine bodies 200 from being damaged due to an excessively small curvature radius at the bent positions.

The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and the invention is still within the scope of the present invention by simple equivalent changes and modifications made according to the claims and the contents of the specification.

Claims

1. A synchronous hinge is suitable for being arranged between two machine bodies; characterized in that said co-acting hinge comprises:

at least one same-motion module which comprises a same-motion base, two same-motion parts and a transmission unit, wherein the same-motion base is provided with a containing groove and two guide grooves which are respectively positioned in the front and the back of the containing groove along the front and back directions and are communicated with the containing groove, the two same-motion parts are respectively arranged in the two guide grooves in a way of rotating around two rotation axes relative to the same-motion base, the two rotation axes are parallel to the front and back directions and are mutually spaced along the left and right directions vertical to the front and back directions, each same-motion part is provided with a same-motion body arranged in the corresponding guide groove and a connecting body which extends from the same-motion body far away from the two rotation axes, is positioned outside the same-motion base and is used for being arranged in the corresponding machine body, the transmission unit is arranged in the containing groove and extends into the two guide grooves, and the transmission unit is connected with the same-motion bodies of the two same-motion parts so The two rotation axes reversely and synchronously rotate and link the two machine bodies to change between the unfolding state and the folding state, and the two machine bodies keep a distance at the folding position when in the folding state.

2. The simultaneous hinge according to claim 1, wherein: the synchronous body of each synchronous piece is provided with an arc inner tooth surface which is positioned in the corresponding guide groove and is formed around the corresponding rotating axis, the transmission unit is provided with two synchronous gears, and two idler gears, the two same-motion gears are arranged in the containing groove of the same-motion base at intervals along the left-right direction, and the two simultaneous gears extend to the two guide grooves respectively to be connected to the simultaneous movement bodies of the two simultaneous movement members respectively, each of the simultaneous gears has a first gear portion which is arranged in the accommodation groove and can rotate around an axis parallel to the front-rear direction, and a second gear part which is connected with the first gear part in a synchronous rotation way with the first gear part and extends into the corresponding guide groove along the front-back direction so as to be meshed with the arc inner tooth surface of the corresponding same moving part, the two idle gears are arranged in the accommodating groove along the left-right direction and are meshed between the first gear parts of the two synchronous gears.

3. The concurrent hinge according to claim 2, wherein: each guide groove of the same-motion base is provided with a first guide structure, the same-motion body of each same-motion piece is also provided with a second guide structure which is in concave-convex fit with the first guide structure of the corresponding guide groove, and the first guide structures of the two guide grooves and the second guide structures of the two same-motion pieces respectively extend around the two rotation axes, so that the two same-motion pieces can respectively rotate around the two rotation axes relative to the same-motion base.

4. The co-acting hinge according to claim 3, wherein: the two rotation axes are located above the co-acting base along an up-down direction perpendicular to the front-back direction and the left-right direction.

5. The co-acting hinge according to claim 4, wherein: the two same-action pieces can rotate between a first angle position and a second angle position relative to the same-action base so as to link the two machine bodies to change between the unfolding state and the folding state, the same-action bodies of the two same-action pieces are accommodated in the guide groove in the first angle position, the connecting bodies of the two same-action pieces are far away from each other, and the same-action body parts of the two same-action pieces protrude out of the upper part of the same-action base in the second angle position, and the connecting bodies of the two same-action pieces are close to each other.

6. The co-acting hinge according to any one of claims 1 to 5, wherein: the synchronous motion type hinge also comprises a base extending along the front-back direction and at least one torsion module arranged with the synchronous module along the front-back direction, wherein a synchronous motion base of the synchronous motion module is arranged on the base, the torsion module comprises a torsion base, two connecting rods and two torsion units, the torsion base is arranged on the base, the two connecting rods are pivoted on the torsion base and are respectively used for being arranged on the two machine bodies so as to pivot relative to the torsion base along with the two machine bodies, the torsion units are respectively connected between the two connecting rods and the torsion base, each torsion unit comprises a pivot and an elastic piece, the pivot is arranged on the corresponding connecting rod and the torsion base in a penetrating way and synchronously pivots with the corresponding connecting rod, and the pivot is provided with a setting part penetrating out of the torsion base and an abutting head part formed at the tail end of the setting part and spaced from the torsion base, the elastic piece is sleeved on the setting part and is compressively clamped between the abutting head and the torsion base.

7. The co-acting hinge according to claim 6, wherein: the torsion module further comprises positioning pieces which are sleeved on the setting parts of the pivots of the two torsion units and lean against the torsion base, each torsion unit further comprises a positioning piece which is synchronously pivoted with the pivots and sleeved on the setting parts of the pivots and clamped between the elastic piece and the positioning pieces, each positioning piece is provided with two first positioning structures facing the positioning pieces respectively, each positioning piece is provided with a first positioning structure facing the corresponding positioning piece and a second positioning structure matched with the first positioning structures, and when the two bodies are in at least one of the unfolding state and the folding state, the first positioning structures of the positioning pieces are matched with the second positioning structures of the positioning pieces in a concave-convex mode.

8. The co-acting hinge according to claim 7, wherein: each torsion unit further comprises two friction gaskets which are synchronously pivoted with the pivot and sleeved on the arrangement part of the pivot, one of the two friction gaskets is clamped between the abutting head part of the pivot and the elastic part, and the other friction gasket is clamped between the torsion base and the positioning plate.

9. The co-acting hinge according to claim 6, wherein: each connecting rod of the torque module is provided with a first rod piece pivoted on the torque base and a second rod piece which is slidably arranged on the first rod piece and is used for being arranged on the corresponding machine body.

10. The co-acting hinge according to claim 9, wherein: the simultaneous movement type hinge further comprises two cover plates which extend along the front-back direction and are respectively arranged at the left side and the right side of the base, each cover plate can rotate relative to the base around an adjacent rotation axis, the cover plates are respectively connected to the first rod piece of the connecting rod of the torsion module so as to be linked with the connecting rod and rotate relative to the base, and when the two machine bodies are changed between the unfolding state and the folding state, the base and the two cover plates jointly cover the simultaneous movement module and the torsion module.

11. The co-acting hinge according to claim 10, wherein: the first rod piece of each connecting rod is provided with a first sliding rail, and each cover plate is provided with a first sliding block which can slidably protrude out of the first sliding rail.

12. The co-acting hinge according to claim 11, wherein: the first rod piece of each connecting rod is also provided with a second sliding rail which is positioned outside the first sliding rail and extends outwards, and the second rod piece of each connecting rod is provided with a second sliding block which can slidably and convexly extend to the second sliding rail of the corresponding first rod piece.