CN210423405U

CN210423405U - Hinge mechanism

Info

Publication number: CN210423405U
Application number: CN201920969720.7U
Authority: CN
Inventors: 徐安赐; 成艳姣; 赵少君
Original assignee: Shenzhen Fushida Communication Co ltd; First Dome Corp
Current assignee: Shenzhen Fushida Communication Co ltd; First Dome Corp
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-04-28
Anticipated expiration: 2029-06-24
Also published as: TWM585366U

Abstract

A hinge mechanism comprises a first moving part, a second moving part and a third moving part, wherein in the process that a first connecting end part of the first moving part moves upwards, the first moving end part can slide towards the direction far away from a second substrate unit, in the process that a second connecting end part of the second moving part moves upwards, the second moving end part can slide towards the direction far away from the first substrate unit, meanwhile, the first moving part enables the first substrate unit to rotate upwards, a first inner end part slides towards the direction far away from the second substrate unit, the second moving part enables the second substrate unit to rotate upwards, and a second inner end part slides towards the direction far away from the first substrate unit, so that a first face part and a second face part of a flexible screen are opposite, and a bending space is formed between the first inner end part and the second inner end part for bending a bending part of the flexible screen.

Description

Hinge mechanism

Technical Field

The present invention relates to a hinge mechanism, and more particularly to a hinge mechanism for a flexible electronic device having a flexible screen.

Background

With the continuous improvement of technology, smart phones or tablets using flexible screens have become the development trend in the future, and such electronic devices usually have two substrates that are laid flat side by side, a flexible screen disposed on the two substrates, and at least one hinge mechanism disposed between the two substrates, so that the two substrates can rotate relative to each other via the hinge mechanism, and the flexible screen can be changed into a folded state or a laid flat state along with the substrates according to a predetermined pattern. However, it is a problem to be overcome at present how to avoid the flexible screen from being damaged due to excessive bending (bending) through the hinge mechanism design in the folded and retracted state.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a hinge mechanism for a flexible electronic device, which can prevent a flexible screen from being bent excessively.

The utility model discloses a the hinge mechanism is applicable to and installs the type of buckling that bears mechanism in order to guide flexible formula screen and changes, bear the mechanism and include the base, be located the first base plate unit and the second base plate unit of the double-phase opposite side of base, first base plate unit with second base plate unit is used for bearing flexible formula screen, the hinge mechanism contains: at least one first inner guide part, a first moving part, at least one second inner guide part and a second moving part. The first inner guide piece is arranged in the base and forms a first inner sliding hole extending along the arrangement direction of the first substrate unit and the second substrate unit. The first moving part is adjacent to the first inner guide part in the extending direction of the base and is provided with a first moving end part which can be glidingly arranged in the first inner sliding hole and a first connecting end part which is connected with a first inner end part of the first substrate unit close to the base. The second inner guide piece is arranged in the base and forms a second inner sliding hole extending along the arrangement direction of the first substrate unit and the second substrate unit. The second moving part is adjacent to the second inner guide part in the extending direction of the base and is provided with a second moving end part which can be glidingly arranged in the second inner sliding hole in a penetrating way and a second connecting end part which is connected with a second inner end part of the second substrate unit close to the base. Wherein, in the process that the first connecting end part of the first moving part moves upwards, the first moving end part slides towards the direction far away from the second substrate unit, and the second moving end part slides towards the direction far away from the first base plate unit in the process that the second connecting end part of the second moving part moves upwards, meanwhile, the first moving member enables the first substrate unit and the first surface of the flexible screen to rotate upwards, the first inner end part slides towards the direction far away from the second substrate unit, the second moving part enables the second substrate unit and the second surface part of the flexible screen to rotate upwards, and the second inner end part slides towards the direction far away from the first substrate unit, so that the first face part is opposite to the second face part, and the first inner end part and the second inner end part form a bending space for bending the bending part of the flexible screen.

In some embodiments, the first inner slide hole is arc-shaped and curved toward the base and is close to the first substrate unit, and the second inner slide hole is arc-shaped and curved toward the base and is close to the second substrate unit.

In some implementations, the first inner guide has a first front bottom surface spaced apart from and extending along the first inner slide hole extension direction; the first moving end part of the first moving part is provided with a first sliding pin penetrating through the first inner sliding hole and a first sliding block which can be glidingly abutted against the first front bottom surface; the second inner guide piece is provided with a second front bottom surface which is spaced from the second inner slide hole and extends along the extension direction of the second inner slide hole; the second moving end part of the second moving part is provided with a second sliding pin penetrating through the second inner sliding hole and a second sliding block which can be glidingly abutted against the second front bottom surface.

In some embodiments, the hinge mechanism further includes a plurality of first inner guides and a plurality of second inner guides, the first inner guides are two by two side and adjacent, and the first inner slide hole of each first inner guide is penetrated by the first moving end; the second inner guide pieces are arranged side by side and adjacent to each other, and the second inner sliding hole of each second inner guide piece is penetrated by the second moving end part.

In some embodiments, the hinge mechanism further includes two supporting members, a first outer guide member set, a first outer connecting member, a first linkage unit, a second outer guide member set, a second outer connecting member, and a second linkage unit, wherein the supporting members are disposed in the base and spaced apart from each other in the extending direction of the base; the first outer guide group comprises a first outer guide arranged on the first substrate unit, the first outer guide forms a first outer sliding hole extending along the length direction, the first outer connecting piece is adjacent to the first outer guide and is provided with a first outer sliding pin which can be slidably arranged in the first outer sliding hole, one end of the first linkage unit is connected to the first outer connecting piece, and the other end of the first linkage unit is arranged on the support piece; the second outer guide member group comprises a second outer guide member arranged on the second base plate unit, the second outer guide member forms a second outer sliding hole extending along the length direction, the second outer connecting member is adjacent to the second outer guide member and is provided with a second outer sliding pin which can be slidably arranged in the second outer sliding hole, one end of the second linkage unit is connected to the second outer connecting member, the other end of the second linkage unit is arranged on the supporting member, the first base plate unit is linked with the first outer guide member to slide towards the direction far away from the base in the process that the first connecting end part of the first moving member moves upwards, the first outer guide member slides relative to the first outer sliding pin, and the second connecting end part of the second moving member moves upwards, the second base plate unit is linked with the second outer guide member to slide towards the direction far away from the base, and the second outer guide will slip relative to the second outer slip pin.

In some embodiments, the hinge mechanism further includes a transmission unit disposed on the supporting member, and two opposite ends of the transmission unit respectively abut against the first linkage unit and the second linkage unit, and the transmission unit is configured to be driven by one of the first linkage unit and the second linkage unit to drive the other of the first linkage unit and the second linkage unit.

In some embodiments, the first linkage unit includes a first linkage pivot with two opposite ends respectively passing through the support member, and a first linkage gear sleeved on the first linkage pivot; the second linkage unit comprises a second linkage pivot and a second linkage gear, wherein two opposite ends of the second linkage pivot are respectively arranged on the support part in a penetrating mode, and the second linkage gear is sleeved on the second linkage pivot; the transmission unit comprises a first transmission pivot, a first transmission gear, a second transmission pivot and a second transmission gear, wherein two opposite ends of the first transmission pivot are respectively arranged in the support in a penetrating mode, the first transmission gear is sleeved on the first transmission pivot and meshed with the first transmission gear, two opposite ends of the second transmission pivot are respectively arranged in the support in a penetrating mode, and the second transmission gear is sleeved on the second transmission pivot and meshed with the second transmission gear and the first transmission gear.

In some embodiments, the hinge mechanism further includes a positioning unit disposed on the first linkage unit, the second linkage unit, and the transmission unit, and the positioning unit is configured to provide a friction force to at least one of the first linkage unit, the second linkage unit, and the transmission unit, so that the first substrate unit and the second substrate unit can be positioned at a rotation angle.

In some embodiments, the positioning unit includes at least one first torsion member having two opposite ends respectively clamping the first linkage pivot and the first transmission pivot, and at least one second torsion member having two opposite ends respectively clamping the second linkage pivot and the second transmission pivot.

In some embodiments, the first outer guide has a first outer left surface and a first outer convex surface protruding from an end surface portion of the first outer left surface, the first outer convex surface has a first outer guide plane portion extending along the length direction and two first outer guide slope portions respectively connected to opposite sides of the first outer guide plane portion; the hinge mechanism further comprises a first locking unit arranged on the first external connecting piece, the first locking unit comprises a first frame arranged on the first external connecting piece, a first clamping block arranged in the first frame and capable of sliding relative to the first frame, and a first elastic piece arranged in the first frame and respectively abutted against the first frame and the first clamping block at two opposite ends, the first clamping block is provided with a first clamping end part, the first clamping block is pressurized by the first elastic piece to enable the first clamping end part to abut against the first outer convex surface, and when the first substrate unit is converted from a flattening state to a folding state, the first clamping block is interlocked with the first external guiding piece to slide relative to the first locking unit, so that the first clamping end part is converted from one of the first external guiding plane parts abutting against the first external guiding part along the first external guiding plane part to be abutted against the first external guiding part The other one of them.

The beneficial effects of the utility model reside in that: the hinge mechanism is mounted on the bearing mechanism, the first moving piece rotates upwards and slides towards the direction far away from the second base plate unit, the second moving piece rotates upwards and slides towards the direction far away from the first base plate unit, the first base plate unit is further connected to one end of the first moving piece, the second base plate unit is connected to one end of the second moving piece at intervals, a bending space for bending the bending part of the flexible screen is formed, the flexible screen is protected from being damaged due to excessive bending, and the size of the flexible electronic device is reduced so as to improve carrying convenience.

Drawings

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

fig. 1 is a schematic perspective view of a flexible electronic device according to an embodiment of the present invention;

FIG. 2 is a perspective view of the embodiment;

FIG. 3 is an exploded perspective view of one of the embodiments;

FIG. 4 is a partially exploded schematic view of one of the embodiments;

FIG. 5 is a fragmentary perspective view of one of the embodiments;

FIG. 6 is a fragmentary perspective view of one of the embodiments;

FIG. 7 is a schematic perspective exploded view of one of the embodiments;

FIG. 8 is an exploded view similar to the view of FIG. 4;

FIG. 9 is a schematic perspective exploded view of one of the embodiments;

FIG. 10 is a partially exploded schematic view of one of the embodiments;

FIG. 11 is an exploded perspective view of one of the embodiments;

FIG. 12 is a schematic top view of the embodiment in a flattened condition;

FIG. 13 is a schematic top view of the embodiment shown converted from a flat position to a folded position;

FIG. 14 is a schematic cross-sectional view taken along line XIV-XIV of FIG. 12;

FIG. 15 is a schematic cross-sectional view taken along line XV-XV of FIG. 13;

FIG. 16 is a cross-sectional view taken along line XVI-XVI of FIG. 12;

FIG. 17 is a cross-sectional view taken along line XVII-XVII of FIG. 12;

FIG. 18 is a cross-sectional view taken along line XVIII-XVIII of FIG. 13;

FIG. 19 is a partially exploded schematic view of one of the embodiments;

FIG. 20 is a perspective view of one of the embodiments;

FIG. 21 is a cross-sectional schematic view taken along line XXI-XXI of FIG. 12;

FIG. 22 is a cross-sectional schematic view taken along line XXII-XXII of FIG. 13;

FIG. 23 is a schematic bottom view of the embodiment;

FIG. 24 is a schematic side view of the embodiment; and

FIG. 25 is a schematic side view of the embodiment.

Detailed Description

Referring to fig. 1 and fig. 2, an embodiment of the flexible electronic device of the present invention includes a flexible screen 1, a supporting mechanism 2, and two hinge mechanisms 3. In the embodiment, the flexible electronic device is exemplified as an intelligent tablet computer having a flexible screen 1, and the upper surface of the supporting mechanism 2 is used for fixing the flexible screen 1. The bearing mechanism 2 is used for arranging the hinge mechanism 3, a circuit board and related electronic components. The hinge mechanism 3 is used for providing a supporting and positioning function after the flexible electronic device is transformed between a flat state as shown in fig. 1 and a folded state as shown in fig. 2, and in the folded state, the hinge mechanism 3 can also provide a proper bending space at the bending position of the flexible screen 1 to avoid excessive bending of the flexible screen 1. It should be particularly noted that the flexible electronic device is not limited to the smart tablet computer having the flexible screen 1, and other mobile phones having the flexible screen 1 and notebook computers having the flexible screen 1 are within the scope of the present disclosure.

Before detailed description, in the present embodiment, the flexible electronic device is illustrated by spreading the flexible electronic device in a length direction D1 and folding the flexible electronic device in a height direction D2 as shown in fig. 1, and a width direction D3 is perpendicular to the length direction D1 and the height direction D2, but not limited thereto, the length direction D1, the height direction D2, and the width direction D3 are determined according to a usage state of the flexible electronic device.

Referring to fig. 1 to 3, the supporting mechanism 2 includes a base 21, a first substrate unit 22, a second substrate unit 23, and a top supporting plate 24. In this embodiment, the base 21 has a bottom wall 211, a first extending wall 212 extending outward from one side of the bottom wall 211 and having an arc shape, and a second extending wall 213 extending outward from the other side of the bottom wall 211 and having an arc shape. The bottom wall 211, the first extending wall 212 and the second extending wall 213 together form an accommodating space 214 extending along the width direction D3. The first substrate unit 22 and the second substrate unit 23 are arranged side by side along the length direction D1 and are disposed at an interval on the first extending wall 212 and the second extending wall 213 of the base 21, respectively. The first substrate unit 22 has a first housing 221, a first outer support plate 222 and a first inner support plate 223. The first outer support plate 222 and the first inner support plate 223 are disposed on the first housing 221, are adjacent to each other side by side, and are coplanar, so as to provide a first face portion 11 of the flexible screen 1, wherein the first inner support plate 223 is located above the first extending wall 212 and spans the inner side and the outer side of the first extending wall 212, and the first inner support plate 223 has a first inner end portion 2231 located on the accommodating space 214. In contrast, the second substrate unit 23 has a second housing 231, a second outer supporting plate 232 and a second inner supporting plate 233. The second outer supporting plate 232 and the second inner supporting plate 233 are disposed on the second housing 231, are adjacent to each other side by side, and are coplanar, so as to provide a second face portion 12 of the flexible screen 1, wherein the second inner supporting plate 233 is located above the second extending wall 213 and spans the inner side and the outer side of the second extending wall 213, and the second inner supporting plate 233 has a second inner end portion 2331 located on the accommodating space 214. The top supporting plate 24 is disposed above the base 21, and two opposite sides thereof are respectively adjacent to the first inner end portion 2231 of the first inner supporting plate 223 and the second inner end portion 2331 of the second inner supporting plate 233 to form a common plane, and is used for supporting a bending portion 13 of the flexible screen 1.

In the flattened state, two adjacent sides of the first casing 221 and the second casing 231 abut against each other and shield two opposite ends of the base 21 in the width direction D3. When the first housing 221 and the second housing 231 are in the folded state, the first housing 221 and the second housing 231 are attached to each other, and the base 21 is exposed, in which case, the base 21 is used for protecting and shielding the hinge mechanism 3 disposed in the base 21.

Referring to fig. 3 and 4, firstly, the assembly and disassembly relationship of the flexible screen 1, the carrying mechanism 2 and the hinge mechanism 3 in the flat state will be described. The hinge mechanism 3 is respectively disposed between two adjacent sides of the first substrate unit 22 and the second substrate unit 23 and connected to end portions of the two adjacent sides, in this embodiment, the hinge mechanism 3 is mutually and symmetrically connected to the first substrate unit 22 and the second substrate unit 23. For the sake of convenience of subsequent description, as an example of one of the hinge mechanisms 3 located in the width direction D3 in fig. 4, the hinge mechanism 3 includes at least one first inner guide 31, at least one second inner guide 32, a first moving member 33, a second moving member 34, a first outer guide member set 35, a second outer guide member set 37, a first outer connecting member 39, a second outer connecting member 41, two supporting members 42, a first linking unit 43, a second linking unit 44, a transmission unit 45, a positioning unit 46, a first locking unit 47 and a second locking unit 48.

Referring to fig. 4 to 7, in the present embodiment, the hinge mechanism 3 includes a plurality of first inner guides 31 and a plurality of second inner guides 32. The first inner guides 31 are disposed in the accommodating space 214 two by two, side by side and adjacent to each other, each first inner guide 31 is inserted into the top supporting plate 24 through a first inner guide fixing portion 311 formed on the top surface, thereby being positioned in the accommodating space 214 and being easily replaced and maintained, each first inner guide 31 forms a first inner sliding hole 312 extending along the arrangement direction (i.e., the length direction D1) of the first substrate unit 22 and the second substrate unit 23, and further, the first inner slide hole 312 is arc-shaped and is bent toward the bottom wall 211 of the base 21, and is close to the first substrate unit 22, i.e., the first inner slide hole 312, spans the top support plate 24 and the first inner support plate 223, for the sake of description, the first inner slide hole 312 has a first inner flattened end 3121 adjacent to the top support plate 24 and a first inner doubled over end 3122 adjacent to the first inner support plate 223. In addition, each first inner guide 31 further has a first front bottom surface 313 spaced apart from the first inner sliding hole 312 and extending along the extending direction of the first inner sliding hole 312, and a first rear bottom surface 314 connected to the first front bottom surface 313 and abutting against the base 21. The first front bottom surface 313 is bent to the same degree as the first inner slide hole 312, and forms an arc-shaped first sliding space 3131 together with the bottom wall 211 and the first extending wall 212.

Referring to fig. 4 to 7, the second inner guides 32 are disposed in the accommodating space 214 two by two side and adjacently, and the second inner guides 32 are located between the first inner guides 31 and the end wall of the base 21, each second inner guide 32 is inserted into the top support plate 24 by a second inner guide fixing portion 321 formed on the top surface, thereby being positioned in the accommodating space 214, each second inner guide 32 forms a second inner slide hole 322 extending along the arrangement direction (i.e. the length direction D1) of the first substrate unit 22 and the second substrate unit 23, and further, the second inner slide hole 322 is arc-shaped and curved toward the bottom wall 211 of the base 21 and is close to the second substrate unit 23, i.e. the second inner slide hole 322 crosses the top support plate 24 and the second inner support plate 233, for convenience of subsequent description, the second inner slide hole 322 has a second inner flattened end 3221 adjacent to the top support plate 24 and a second inner doubled-over end 3222 adjacent to the second inner support plate 233. In addition, each second inner guide 32 further has a second front bottom 323 spaced apart from the second inner sliding hole 322 and extending along the extending direction of the second inner sliding hole 322, and a second rear bottom 324 connected to the second front bottom 323 and abutting against the base 21. The second front bottom 323 has the same curvature as the second inner slide hole 322, and forms an arc-shaped second slide space 3231 together with the bottom wall 211 and the second extending wall 213.

Referring to fig. 4 to 7, the first moving member 33 abuts against the first inner guide 31 in the extending direction of the base 21, and has a first moving end 331 slidably passing through the first inner sliding hole 312, and a first connecting end 332 connecting a first inner end 2231 of the first substrate unit 22 close to the base 21. Further, the first moving end 331 of the first moving member 33 has a first sliding pin 3311 passing through the first inner sliding hole 312 and a first sliding block 3312 slidably abutting against the first front bottom surface 313. In this embodiment, the first moving part 33 is close to one of the first inner guide 31 and the second inner guide 32, the first connecting end 332 is close to the first extending wall 212, and the first moving part 33 penetrates through the first inner support plate 223 through a first movable fixing part 3321 formed at the top surface of the first connecting end 332, so as to maintain the state of abutting against the corresponding first inner guide 31. The first moving end 331 is close to the second extending wall 213, the first sliding pin 3311 is cylindrical and protrudes from the first moving end 331 toward the side of the first inner guide 31 to penetrate through the first inner sliding holes 312 which are communicated with each other, and the outer surface of the first sliding pin 3311 is almost against the hole wall of each first inner sliding hole 312, and furthermore, the first sliding block 3312 is rectangular and also protrudes toward the first inner guide 31 to penetrate through the first sliding space 3131, and the shape is slightly curved to conform to the curvature of the first front bottom surface 313, in this case, by the first sliding block 3312 abutting against the first front bottom surface 313, the structure of the first inner guide 31 between the first inner sliding hole 312 and the first sliding space 3131 is clamped by the first sliding pin 3311, so as to further improve the structure of the first sliding pin 3311 of the first moving member 33 in the first sliding hole 312 which is stable And (4) degree. Of course, the first moving member 33 may be slid without the first slide block 3312. In the flattened state, the first sliding pin 3311 is located at the first inner flattened end 3121, and the first sliding block 3312 is located at the first front bottom surface 313 near the first rear bottom surface 314.

Referring to fig. 4 to 7, the second moving part 34 is adjacent to the second inner guide 32 in the extending direction of the base 21, and has a second moving end 341 slidably passing through the second inner sliding hole 322, and a second connecting end 342 connected to a second inner end 2331 of the second substrate unit 23 close to the base 21. Further, the second moving end 341 of the second moving part 34 has a second sliding pin 3411 passing through the second inner sliding hole 322 and a second sliding block 3412 slidably abutting against the second front bottom surface 323. In this embodiment, the second moving part 34 is close to the second inner guide 32 and faces one of the first inner guides 31, the second connecting end 342 is close to the second extending wall 213, and the second moving part 34 penetrates through the second inner support plate 233 through a second movable fixing part 3421 formed at the top surface of the second connecting end 342, so as to maintain the state of abutting against the corresponding second inner guide 32. The second moving end 341 is close to the first extending wall 212, the second sliding pin 3411 is cylindrical and protrudes from the second moving end 341 toward the side of the second inner guide 32 to penetrate through the second inner sliding holes 322 communicating with each other, and the outer surface of the second sliding pin 3411 is almost abutted against the hole wall of each second inner sliding hole 322, and furthermore, the second sliding block 3412 is rectangular and also protrudes toward the second inner guide 32 to penetrate through the second sliding space 3231, and is slightly curved to conform to the curvature of the second front bottom surface 323, in this case, by abutting the second sliding block 3412 against the second front bottom surface 323, the second sliding pin 3411 is clamped with the structure of the second inner guide 32 between the second inner sliding hole 322 and the second sliding space 3231, so as to further promote the sliding of the second sliding pin 3411 of the second moving part 34 in the second sliding hole 322 stably And (4) degree. Of course, the second moving member 34 may be slid without the second sliding block 3412. In the flattened state, the second sliding pin 3411 is located at the second inner flattened end 3221, and the second sliding block 3412 is located at the second front bottom 323 adjacent to the second rear bottom 324.

Referring to fig. 7 and 8, in the present embodiment, the first outer guide set 35 includes a first outer guide 351 and a first outer auxiliary guide 352 disposed on the first substrate unit 22 and spaced apart in the width direction D3. Further, the first outer guide 351 and the first outer auxiliary guide 352 are located inside the first housing 221 and near the first extension wall 212, wherein the first outer guide 351 is near a side wall of the first housing 221. The first outer guiding member 351 is substantially rectangular and passes through a first outer guiding fixing portion 353 formed by protruding from the top surface, and the first outer guiding fixing portion 353 is disposed through the first inner supporting plate 223. The first outer guide 351 has a first rear surface 354 adjacent to the first extension wall 212, a first outer left surface 355 facing the first outer auxiliary guide 352, a first outer right surface 356 facing away from the first outer left surface 355, a first outer slide hole 357 formed in the first outer right surface 356 and extending along the length direction D1, and a first outer convex surface 358 protruding from an end portion of the first outer left surface 355 adjacent to the first extension wall 212. The first outer slide hole 357 is formed in a circular arc shape and is curved toward the bottom wall of the first housing 221. The first convex outer surface 358 has a first outer guiding plane portion 3581 parallel to the first outer left surface 355, and two first outer guiding inclined plane portions spaced apart from each other in the length direction D1 and connected to two opposite sides of the first outer guiding plane portion 3581, for convenience of the following description, the first outer guiding inclined surface portions are named as a first outer front guiding inclined surface portion 3582A and a first outer rear guiding inclined surface portion 3582B, the first outer front guide slope part 3582A connects the first outer guide plane part 3581 away from the first extension wall 212, and extends obliquely from the corresponding side edge to the first outer left surface 355 in the direction away from the base 21, the first outer rear guide slope part 3582B connects the first outer guide plane part 3581 near the first extension wall 212, and extends obliquely from the corresponding side edge toward the base 21 to the first rear surface 354. For the purpose of the following operation, the first outer sliding hole 357 has a first outer folded end 3571 close to the base 21 and a first outer flattened end 3572 away from the base 21.

In addition, the first outer auxiliary guide 352 has a structure similar to that of the first outer guide 351 except that the first outer convex surface 358 is omitted. The first outer auxiliary guide 352 is formed with a first outer auxiliary slide hole 359 facing the first outer guide 351 and corresponding to the first outer slide hole 357 in the width direction D3, and is bent to the same degree as the first outer slide hole 357.

Referring to fig. 7 and 8, in the present embodiment, the second outer guide group 37 includes a second outer guide 371 and a second outer auxiliary guide 372 disposed on the second substrate unit 23 and spaced apart in the width direction D3. Further, the second outer guide 371 and the second outer auxiliary guide 372 are located inside the second housing 231 and near the second extension wall 213, wherein the second outer guide 371 is near a sidewall of the second housing 231. The second outer guiding member 371 is substantially rectangular and passes through a second outer guiding fixing portion 373 formed by protruding from the top surface, and the second outer guiding fixing portion 373 is inserted into the second inner supporting plate 233. The second outer guide 371 has a second rear surface 374 adjacent to the second extension wall 213, a second outer left surface 375 facing the second outer auxiliary guide 372, a second outer right surface 376 facing away from the second outer left surface 375, a second outer slide hole 377 formed in the second outer right surface 376 and extending in the length direction D1, and a second outer convex surface 378 protruding from an end portion of the second outer left surface 375 adjacent to the second extension wall 213. The second outer sliding hole 377 is formed in a circular arc shape and is bent toward the bottom wall of the second housing 231. The second convex outer surface 378 has a second outer guiding plane portion 3781 parallel to the second outer left surface 375, and two second outer guiding inclined plane portions spaced apart from each other in the length direction D1 and connected to two opposite sides of the second outer guiding plane portion 3781, for convenience of the following description, the second outer guiding bevel portions are named as a second outer front guiding bevel portion 3782A and a second outer rear guiding bevel portion 3782B, the second outer leading inclined surface portion 3782A connects the second outer leading flat surface portion 3781 away from the second extension wall 213, and extends obliquely from the corresponding side edge to the second outer left surface 375 toward the direction away from the base 21, the second outer rear guiding slope 3782B connects the second outer guiding plane 3781 to the second extension wall 213, and extends obliquely from the corresponding side edge toward the base 21 to the second rear surface 374. For the purpose of further operation, the second outer sliding hole 377 has a second outer half-folded end 3771 close to the base 21 and a second outer flattened end 3772 far from the base 21.

In addition, the second outer auxiliary guide 372 is similar in structure to the second outer guide 371 except that the second outer convex surface 378 is omitted. The second outer auxiliary guide 372 forms a second outer auxiliary sliding hole 379 facing the second outer guide 371, and corresponds to the second outer sliding hole 377 in the width direction D3, and is bent to the same degree as the second outer sliding hole 377.

Referring to fig. 7, 8 and 9, the first external connection member 39 is disposed on the first substrate unit 22, and the first external connection member 39 includes a first external connection body 391, a first external extension body 392 extending from the first external connection body 391 along the first external guide member 351 in a bending manner, a first external sliding pin 394 protruding from the first external extension body 392 toward the first external connection body 391, and a first external auxiliary sliding pin 393 protruding from the first external connection body 391 in a direction away from the first external extension body 392. In this embodiment, the first external connection body 391 is located between the first external guide 351 and the first external auxiliary guide 352 and spaced from the bottom wall of the first housing 221, the first external connection body 391 has a first front side edge 3911 adjacent to the first extension wall 212, and the first external auxiliary sliding pin 393 protrudes from a side surface of the first external connection body 391 adjacent to the first external auxiliary guide 352 and slidably penetrates through the first external auxiliary sliding hole 359. The first outer extension 392 is bent and extended from the first front side edge 3911 near the first rear surface 354 of the first outer guide 351 along the first rear surface 354 and the first outer right surface 356, and the first outer slide pin 394 is protruded from a side of the first outer extension 392 adjacent to the first outer right surface 356 toward the first outer guide 351 and slidably disposed through the first outer slide hole 357.

Referring to fig. 7, 8 and 9, the second external connecting member 41 is disposed on the second substrate unit 23, and the second external connecting member 41 includes a second external connecting body 411, a second external extending body 412 extending from the second external connecting body 411 along the second external guiding member 371 in a bending manner, a second external sliding pin 414 protruding from the second external extending body 412 toward the second external connecting body 411, and a second external auxiliary sliding pin 413 protruding from the second external connecting body 411 toward a direction away from the second external extending body 412. In this embodiment, the second external connection body 411 is located between the second external guide 371 and the second external auxiliary guide 372 and spaced from the bottom wall of the second housing 231, the second external connection body 411 has a second front edge 4111 adjacent to the second extension wall 213, and the second external auxiliary sliding pin 413 protrudes from a side of the second external connection body 411 adjacent to the second external auxiliary guide 372 and slidably passes through the second external auxiliary sliding hole 379. The second outer extension 412 is bent and extended along the second rear surface 374 and the second outer right surface 376 from the second rear surface 374 of the second front edge 4111 close to the second outer guide 371, and the second outer sliding pin 414 protrudes from a side surface of the second outer extension 412 adjacent to the second outer right surface 376 toward the second outer guide 371 and is slidably disposed through the second outer sliding hole 377.

Referring to fig. 8 and 9, the supporting members 42 are disposed in the base 21 and spaced apart from each other in the extending direction of the base 21, more specifically, the supporting members 42 are disposed in the accommodating space 214 and located between the second inner guide 32 (see fig. 4) and the end wall of the base 21 and spaced apart from each other in the width direction D3, and a connecting fixing portion 421 is formed on the top surface of each supporting member 42 and penetrates through the top supporting plate 24 to be positioned in the accommodating space 214. Each supporting member 42 further has four pivot holes spaced along the length direction D1 and extending through along the width direction D3, which are named as a first front pivot hole 422A, a first rear pivot hole 422B, a second rear pivot hole 422C and a second front pivot hole 422D in sequence from the first extending wall 212 to the second extending wall 213 for the convenience of the following description.

Referring to fig. 8 and 9, one end of the first linkage unit 43 is connected to the first outer connecting member 39 and the other end is disposed on the supporting member 42. In the present embodiment, the first linkage unit 43 includes a first linkage body 431 and a first linkage structure 432. The first link body 431 spans the first extension wall 212 and has a first outer connecting skirt 4311 connected to the first outer connecting body 391 of the first outer connecting member 39 and a first inner connecting skirt 4312 opposite to the first outer connecting skirt 4311 and adjacent to the second extension wall 213. The first linking structure 432 protrudes from the first inner connecting side edge 4312 toward the second extending wall 213, and has a first linking pivot 4321 connected to the first inner connecting side edge 4312 and extending along the width direction D3, and a first linking gear 4322 formed on the outer surface of the first linking pivot 4321 and extending radially in a zigzag shape along the axis of the first linking pivot 4321, wherein opposite ends of the first linking pivot 4321 respectively penetrate through the first front pivot hole 422A, so that the first linking unit 43 can pivot relative to the supporting member 42. Wherein, the first linkage unit 43 and the first external connection member 39 are integrally formed.

Referring to fig. 8 and 9, one end of the second linking unit 44 is connected to the second external connecting member 41, and the other end is disposed on the supporting member 42. In this embodiment, the second linking unit 44 includes a second linking body 441 and a second linking structure 442. The second linking body 441 crosses the second extension wall 213 and has a second outer connecting side edge 4411 connected to the second outer connecting body 411 of the second outer connecting member 41 and a second inner connecting side edge 4412 opposite to the second outer connecting side edge 4411 and adjacent to the first extension wall 212. The second linking structure 442 protrudes from the second inner connecting side edge 4412 toward the first extending wall 212, and has a second linking pivot 4421 connected to the second inner connecting side edge 4412 and extending along the width direction D3, and a second linking gear 4422 formed on the outer surface of the second linking pivot 4421 and extending radially to form a saw-tooth shape with the axis of the second linking pivot 4421, wherein opposite ends of the second linking pivot 4421 respectively penetrate through the second front pivot hole 422D, so that the second linking unit 44 can pivot relative to the supporting member 42. The second linking unit 44 and the second external connecting member 41 are integrally formed.

Referring to fig. 8 and 9, the transmission unit 45 is disposed on the supporting member 42, and two opposite ends of the transmission unit respectively abut against the first linkage unit 43 and the second linkage unit 44. More specifically, the transmission unit 45 includes a first transmission pivot 451, a first transmission gear 452, a second transmission pivot 453 and a second transmission gear 454. The first transmission pivot 451 is cylindrical and extends along the width direction D3, two opposite ends thereof respectively penetrate through the first rear pivot hole 422B, the first transmission gear 452 is sleeved on the outer surface of the first transmission pivot 451, in this embodiment, the first transmission pivot 451 and the first transmission gear 452 are integrally formed, and for example, they are straight-tooth gears, and the structures of the second transmission pivot 453 and the second transmission gear 454 are the same as the structures of the first transmission pivot 451 and the first transmission gear 452, so that details are not repeated, when installing, two opposite ends of the second transmission pivot 453 respectively penetrate through the second rear pivot hole 422C, and the first transmission gear 452 is meshed with the first transmission gear 4322 and the second transmission gear 454, and the second transmission gear 454 is meshed with the second linkage gear 4422, in this case, the other substrate unit can be driven to rotate at the same time regardless of the rotation of the first substrate unit 22 or the rotation of the second substrate unit 23, and the rotation angles of the two substrate units can be ensured to be the same when the gear ratios of the first linkage gear 4322, the first transmission gear 452, the second transmission gear 454, and the second linkage gear 4422 are the same. Of course, the tooth ratio of the first transmission gear 4322, the first transmission gear 452, the second transmission gear 454 and the second transmission gear 4422 can be adjusted correspondingly according to the actual design requirement. In addition, because the straight-tooth gear has a simple structure, the accuracy of the rotation angle of the substrate unit is easy to calculate, the size is further reduced in proportion, and the occupied space is reduced.

Referring to fig. 8 and 9, the positioning unit 46 is disposed on the first linking unit 43, the second linking unit 44 and the transmission unit 45, and the positioning unit 46 includes at least one first torsion element 461 having two opposite ends respectively clamping the first linking pivot 4321 and the first transmission pivot 451, and at least one second torsion element 462 having two opposite ends respectively clamping the second linking pivot 4421 and the second transmission pivot 453. In the present embodiment, the positioning unit 46 includes fourteen first torsion members 461 and fourteen second torsion members 462, wherein seven first torsion members 461 are adjacently disposed side by side between the supporting member 42 close to the second inner guide 32 (see fig. 4) and the first transmission gears 4322 and 452. The remaining seven first torsion members 461 are disposed adjacent to each other side by side between the supporting member 42 close to the end wall of the base 21 and the first transmission gear 4322 and the first transmission gear 452, and two opposite ends of each first torsion member 461 form a gap respectively for receiving the first transmission pivot 4321 and the first transmission pivot 451, and the first torsion members 461 can be made of metal stamping to have elastic material property, thereby clamping the first transmission pivot 4321 and the first transmission pivot 451 and providing a friction force to the first transmission pivot 4321 and the first transmission pivot 451, so that the first base plate unit 22 can be positioned at a rotation angle. In addition, the second torsion element 462 corresponds to the first torsion element 461, and opposite ends of each second torsion element 462 respectively clamp the second linkage pivot 4421 and the second transmission pivot 453, so as to provide a friction force to the second linkage pivot 4421 and the second transmission pivot 453, so that the second substrate unit 23 can be positioned at another rotation angle. The angle is an angle between the first substrate unit 22 and the second substrate unit 23 when they pivot relatively, and in the present embodiment, the angle is any one of 0 to 180 degrees.

Referring to fig. 10 and 11, the first locking unit 47 is disposed on the first outer connecting member 39, and the first locking unit 47 includes a first frame 471, a first locking block 472, at least one first elastic member 473, and at least one first limiting rod 474. In this embodiment, the first frame 471 is located between the first outer guide 351 and the first outer auxiliary guide 352 and is screwed to the bottom surface of the first outer connecting body 391, and the first frame 471 is generally U-shaped and has a first telescopic space 4712 with an opening 4711 facing the first outer convex surface 358 and a first abutting wall 4713 located at the opposite side of the opening 4711. The first locking piece 472 moves between the first expansion space 4712 and the outside of the first expansion space 4712, and the first locking piece 472 has a first inner side surface 4721 facing the first abutting wall 4713, a plurality of first limiting holes 4722 arranged from the first inner side surface 4721 in the length direction D1 and extending in the width direction D3, a first outer side surface 4723 opposite to the first inner side surface 4721, and a first locking end portion 4724 extending from the first outer side surface 4723 toward the first outer left surface 355 and abutting against the first outer convex surface 358. The first locking unit 47 includes three first elastic members 473 and three first limiting rods 474, wherein the first elastic members 473 are, for example, coil springs, the first elastic members 473 are located in the first telescopic space 4712 and respectively correspond to the first limiting holes 4722, and opposite ends of each first elastic member 473 respectively abut against the first abutting wall 4713 and the corresponding hole wall of the first limiting hole 4722. The first position-limiting rods 474 respectively extend through the first elastic members 473, and two opposite ends of each first position-limiting rod 474 respectively abut against the first abutting walls 4713 and extend through the corresponding first position-limiting holes 4722, but are spaced apart from the end hole walls of the corresponding first position-limiting holes 4722, so that the first elastic members 473 and the first locking blocks 472 slide along the width direction D3, and the sliding stability of the first locking blocks 472 is improved by the three first elastic members 473. Of course, the number of the first elastic elements 473 and the first limiting rods 474 is not limited to three, and may be one, two, or four or more.

Referring to fig. 10 and 11, the second locking unit 48 is disposed on the second external connecting member 41, and the second locking unit 48 includes a second frame 481, a second locking block 482, at least one second elastic member 483, and at least one second limiting rod 484. In this embodiment, the second frame 481 is located between the second outer guide 371 and the second outer auxiliary guide 372 and is screwed to the bottom surface of the second outer connecting body 411, and the second frame 481 is generally U-shaped and has an opening 4811 facing the second expansion space 4812 of the second outer convex surface 378 and a second abutting wall 4813 located at the opposite side of the opening 4811. The second locking piece 482 moves between the second expansion space 4812 and the outside of the second expansion space 4812, and the second locking piece 482 has a second inner surface 4821 facing the second abutting wall 4813, a plurality of second limiting holes 4822 aligned from the second inner surface 4821 along the length direction D1 and extending along the width direction D3, a second outer surface 4823 opposite to the second inner surface 4821, and a second locking end 4824 extending from the second outer surface 4823 toward the second outer left surface 375 and abutting against the second outer convex surface 378. The second locking unit 48 includes three second elastic members 483 and three second position-limiting rods 484, wherein the second elastic member 483 is, for example, a coil spring, the second elastic member 483 is located in the second expansion space 4812 and respectively corresponds to the second position-limiting holes 4822, and two opposite ends of each second elastic member 483 respectively abut against the second abutting wall 4813 and the corresponding hole wall of the second position-limiting hole 4822. The second position-limiting rods 484 extend through the second elastic members 483, and opposite ends of each second position-limiting rod 484 are abutted against the second abutting walls 4813 and the corresponding second position-limiting holes 4822, respectively, but are spaced from the end hole walls of the corresponding second position-limiting holes 4822, so that the second elastic members 483 and the second locking blocks 482 slide along the width direction D3, and the sliding stability of the second locking blocks 482 is improved by the three second elastic members 483. Of course, the number of the second elastic piece 483 and the second limiting rod 484 is not limited to three, and may be one, two, or four or more.

Referring to fig. 12 and 13, top views of the flexible screen device converted from the flat state to the folded state are respectively shown, so as to provide a reference position of a cross-section line of a cross-sectional plane in different subsequent states.

Therefore, when a user manipulates the flexible electronic device from the flat state to the folded state, for example, by manipulating the first housing 221, the first housing 221 and the second housing 231 are in a flat state and are adjacently disposed, as shown in fig. 14, when the first housing 221 is forced upward in the height direction D2, the first housing 221 will link the first outer support plate 222 and the first inner support plate 223, so that the first moving member 33 connected to the first inner support plate 223 rotates upward, that is, the first face portion 11 of the flexible screen 1 moves toward the second face portion 12, and during the rotation, as shown in fig. 14 and 15, the first connecting end 332 of the first moving member 33 moves upward, and the first moving end 331 slides away from the second substrate unit 23, more specifically, the first sliding pin 3311 slides along the first inner sliding hole 312 from the first inner flattened end 3121 to the first inner doubled end 3122, and the first sliding block 3312 synchronously slides along the first front bottom surface 313 to the position close to the first extending wall 212 along with the first sliding pin 3311, so that the first moving end 331 is close to the first extending wall 212, and the first moving end 331 pushes the first connecting end 332 upwards along the sliding process through the first inner sliding hole 312 having the circular arc shape, so that the first connecting end 332 protrudes from the base 21, and the first inner end 1 (see fig. 3) of the first inner support plate 223 connected to the first connecting end 332 is far away from the second substrate unit 23, in which case, the first inner support plate 223 and the first outer support plate 222 are in an upright state, and is located between the top support plate 24 and a side edge of the first extension wall 212.

Referring to fig. 16, when the first substrate unit 22 is forced upward in the height direction D2, the first housing 221 will link the first outer guide member set 35 to drive the first outer connecting member 39, so that the first outer connecting member 39 links the first link unit 43 to drive the transmission unit 45, and further links the second link unit 44, so that the second link unit 44 links the second outer connecting member 41 to drive the second outer guide member set 37, and thereby drives the second substrate unit 23 to synchronously rotate upward in the height direction D2.

When the second housing 231 rotates upward in the height direction D2, the second housing 231 will link the second outer support plate 232 and the second inner support plate 233, so that the second moving member 34 connected to the second inner support plate 233 rotates upward in the height direction D2, that is, the second face portion 12 of the flexible screen 1 moves toward the first face portion 11, and during the rotation, as shown in fig. 17 and 18, the second connecting end portion 342 of the second moving member 34 moves upward, the second moving end portion 341 slides away from the first base plate unit 22, more clearly, the second sliding pin 3411 slides from the second inner flattened end 3221 to the second inner doubled-over end 3222 along the second inner sliding hole 322, and the second sliding block 3412 slides along with the second sliding pin 3411 to a position close to the second extending wall 213 along the second front bottom surface 323, further, the second moving end portion 341 is close to the second extending wall 213, and the second moving end portion 341 pushes the second connecting end portion 342 upward in the sliding process through the second inner sliding hole 322 having the circular arc shape, so that the second connecting end portion 342 protrudes from the base 21, and a second inner end portion 2331 (see fig. 3) of the second inner support plate 233 connected to the second connecting end portion 342 is away from the first substrate unit 22, in which case, the second inner support plate 233 and the second outer support plate 232 are in an upright state and are located between the top support plate 24 and one side edge of the second extending wall 213. Accordingly, referring to fig. 19 and fig. 20, the first inner end portion 2231 of the first inner support plate 223 and the second inner end portion 2331 of the second inner support plate 233 are spaced apart to form a bending space 25 for bending the bending portion 13 of the flexible screen 1, thereby avoiding an over-bending condition.

In addition, referring to fig. 21 and fig. 22, as the first base plate unit 22 rotates upward in the height direction D2, the first inner support plate 223 synchronously drives the first outer guide member set 35, so that the first outer guide member set 35 slides relative to the first outer connecting member 39 in a direction away from the base 21, that is, the first outer flattened end 3572 of the first outer sliding hole 357 abuts against the first outer sliding pin 394 to convert into the first outer folded end 3571 of the first outer sliding hole 357 abuts against the first outer sliding pin 394, and the first outer auxiliary sliding pin 393 (fig. 9) moves in the first outer auxiliary sliding hole 359 (fig. 9) synchronously with the first outer sliding pin 394. On the other hand, as the second substrate unit 23 rotates upward in the height direction D2, the second inner support plate 233 synchronously links the second outer guide member set 37, so that the second outer guide member set 37 slides relative to the second outer connecting member 41 in a direction away from the base 21, that is, the second outer flattened end 3772 of the second outer sliding hole 377 abuts against the second outer sliding pin 414 and is converted into the second outer doubled-up end 3771 of the second outer sliding hole 377 abuts against the second outer sliding pin 414, and the second outer auxiliary sliding pin 413 (see fig. 9) moves in the second outer auxiliary sliding hole 379 (see fig. 9) synchronously with the second outer sliding pin 414. Therefore, the first substrate unit 22 and the second substrate unit 23 move in a direction away from the base 21 to stretch the first surface 11 and the second surface 12 of the flexible screen 1, thereby preventing the bending portion 13 from being excessively bent.

On the other hand, referring to fig. 23 to 25, for the first locking unit 47 and the second locking unit 48, in the flattened state, the first elastic element 473 applies a force to the first locking block 472, so that the first locking end 4724 of the first locking block 472 is pressed against the first outer front guiding inclined surface portion 3582A, and the user must overcome the friction force provided by the first outer front guiding inclined surface portion 3582A to the first locking end 4724 and the elastic force of the first elastic element 473 to move the first substrate unit 22. As the first substrate unit 22 rotates upward, the first outer guide set 35 slides as described above, so that the first locking block 472 is linked to compress the first elastic member 473, so that the first locking end 4724 can move to the first outer guide plane 3581 and move along the first outer guide plane 3581 to the first outer rear guide inclined plane 3582B to the folded state, and when the first locking end 4724 abuts against the first outer rear guide inclined plane 3582B, the user must overcome the friction force provided by the first outer rear guide inclined plane 3582B to the first locking end 4724 and the elastic force of the first elastic member 473 to move the first substrate unit 22 back to the flattened state. In contrast, the second locking unit 48 is actuated in the same way as the first locking unit 47, and therefore, the description thereof is omitted.

Of course, the number of the first inner guide 31 and the second inner guide 32 can be adjusted according to the sliding stability of the first moving member 33 and the second moving member 34, but one first inner guide 31 and one second inner guide 32 can also be respectively sleeved on the first moving member 33 and the second moving member 34, so as to allow the first moving member 33 and the second moving member 34 to slide.

To sum up, the utility model discloses the hinge mechanism 3 install in bear mechanism 2, and see through first moving member 33 rotates towards the top, and keeps away from towards the 23 direction of second base plate unit slides, and second moving member 34 rotates towards the top, and keeps away from first base plate unit 22 direction slides, further makes first base plate unit 22 connect in the one end of first moving member 33 and second base plate unit 23 connect in the one end looks interval of second moving member 34 forms and supplies bending space 25 that bending part 13 of flexible screen 1 buckled, borrows this protection flexible screen 1 can not be impaired because of excessive buckling, and reduces flexible electronic device's volume in order to promote the convenience of carrying. Therefore, the purpose of cost utility model can be achieved.

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

Claims

1. A hinge mechanism is suitable for being installed on a bearing mechanism to guide the bending type change of a flexible screen, the bearing mechanism comprises a base, a first substrate unit and a second substrate unit, the first substrate unit and the second substrate unit are located on two opposite sides of the base and are used for bearing the flexible screen, and the hinge mechanism is characterized in that: the hinge mechanism includes:

the first inner guide piece is arranged in the base and forms a first inner sliding hole extending along the arrangement direction of the first substrate unit and the second substrate unit;

the first moving part is adjacent to the first inner guide part in the extending direction of the base and is provided with a first moving end part which can be glidingly arranged in the first inner sliding hole and a first connecting end part which is connected with a first inner end part of the first substrate unit close to the base;

the second inner guide piece is arranged in the base and forms a second inner sliding hole extending along the arrangement direction of the first substrate unit and the second substrate unit; and

a second moving member adjacent to the second inner guide member in the extending direction of the base and having a second moving end slidably inserted into the second inner slide hole and a second connecting end connecting a second inner end of the second substrate unit close to the base;

wherein, in the process that the first connecting end part of the first moving part moves upwards, the first moving end part slides towards the direction far away from the second substrate unit, and the second moving end part slides towards the direction far away from the first base plate unit in the process that the second connecting end part of the second moving part moves upwards, meanwhile, the first moving member enables the first substrate unit and the first surface of the flexible screen to rotate upwards, the first inner end part slides towards the direction far away from the second substrate unit, the second moving part enables the second substrate unit and the second surface part of the flexible screen to rotate upwards, and the second inner end part slides towards the direction far away from the first substrate unit, so that the first face part is opposite to the second face part, and the first inner end part and the second inner end part form a bending space for bending the bending part of the flexible screen.

2. A hinge mechanism according to claim 1, wherein: the first inner sliding hole is arc-shaped, is bent towards the base and is close to the first substrate unit, and the second inner sliding hole is arc-shaped, is bent towards the base and is close to the second substrate unit.

3. A hinge mechanism according to claim 1, wherein: the first inner guide piece is provided with a first front bottom surface which is spaced from the first inner slide hole and extends along the extension direction of the first inner slide hole; the first moving end part of the first moving part is provided with a first sliding pin penetrating through the first inner sliding hole and a first sliding block which can be glidingly abutted against the first front bottom surface; the second inner guide piece is provided with a second front bottom surface which is spaced from the second inner slide hole and extends along the extension direction of the second inner slide hole; the second moving end of the second moving part is provided with a second sliding pin penetrating through the second inner sliding hole and a second sliding block which can be glidingly abutted against the second front bottom surface.

4. A hinge mechanism according to claim 1, wherein: the hinge mechanism further comprises a plurality of first inner guide pieces and a plurality of second inner guide pieces, the first inner guide pieces are arranged side by side and adjacent to each other in pairs, and a first inner sliding hole of each first inner guide piece is penetrated by the first moving end part; the second inner guide pieces are arranged side by side and adjacent to each other, and the second inner sliding hole of each second inner guide piece is penetrated by the second moving end part.

5. A hinge mechanism according to claim 1, wherein: the hinge mechanism further comprises two supporting pieces, a first outer guide piece group, a first outer connecting piece, a first linkage unit, a second outer guide piece group, a second outer connecting piece and a second linkage unit, wherein the supporting pieces are arranged in the base and are respectively spaced in the extending direction of the base; the first outer guide group comprises a first outer guide arranged on the first substrate unit, the first outer guide forms a first outer sliding hole extending along the length direction, the first outer connecting piece is adjacent to the first outer guide and is provided with a first outer sliding pin which can be slidably arranged in the first outer sliding hole, one end of the first linkage unit is connected to the first outer connecting piece, and the other end of the first linkage unit is arranged on the support piece; the second outer guide member group comprises a second outer guide member arranged on the second base plate unit, the second outer guide member forms a second outer sliding hole extending along the length direction, the second outer connecting member is adjacent to the second outer guide member and is provided with a second outer sliding pin which can be slidably arranged in the second outer sliding hole, one end of the second linkage unit is connected to the second outer connecting member, the other end of the second linkage unit is arranged on the supporting member, the first base plate unit is linked with the first outer guide member to slide towards the direction far away from the base in the process that the first connecting end part of the first moving member moves upwards, the first outer guide member slides relative to the first outer sliding pin, and the second connecting end part of the second moving member moves upwards, the second base plate unit is linked with the second outer guide member to slide towards the direction far away from the base, and the second outer guide will slip relative to the second outer slip pin.

6. A hinge mechanism according to claim 5, wherein: the hinge mechanism further comprises a transmission unit arranged on the support piece, wherein two opposite ends of the transmission unit respectively abut against the first linkage unit and the second linkage unit, and the transmission unit is used for being linked by one of the first linkage unit and the second linkage unit to drive the other one of the first linkage unit and the second linkage unit.

7. A hinge mechanism according to claim 6, wherein: the first linkage unit comprises a first linkage pivot and a first linkage gear, wherein two opposite ends of the first linkage pivot are respectively arranged on the support piece in a penetrating mode, and the first linkage gear is sleeved on the first linkage pivot; the second linkage unit comprises a second linkage pivot and a second linkage gear, wherein two opposite ends of the second linkage pivot are respectively arranged on the support part in a penetrating mode, and the second linkage gear is sleeved on the second linkage pivot; the transmission unit comprises a first transmission pivot, a first transmission gear, a second transmission pivot and a second transmission gear, wherein two opposite ends of the first transmission pivot are respectively arranged in the support in a penetrating mode, the first transmission gear is sleeved on the first transmission pivot and meshed with the first transmission gear, two opposite ends of the second transmission pivot are respectively arranged in the support in a penetrating mode, and the second transmission gear is sleeved on the second transmission pivot and meshed with the second transmission gear and the first transmission gear.

8. A hinge mechanism according to claim 7, wherein: the hinge mechanism further comprises a positioning unit arranged on the first linkage unit, the second linkage unit and the transmission unit, wherein the positioning unit is used for providing friction force to at least one of the first linkage unit, the second linkage unit and the transmission unit, so that the first substrate unit and the second substrate unit can be positioned at a rotation angle.

9. A hinge mechanism according to claim 8, wherein: the positioning unit comprises at least one first torsion piece with two opposite ends respectively clamping the first linkage pivot and the first transmission pivot, and at least one second torsion piece with two opposite ends respectively clamping the second linkage pivot and the second transmission pivot.

10. A hinge mechanism according to claim 5, wherein: the first outer guide member has a first outer left surface and a first outer convex surface protruding from an end surface portion of the first outer left surface, the first outer convex surface has a first outer guide plane portion extending along the length direction and two first outer guide slope portions connected to opposite sides of the first outer guide plane portion, respectively; the hinge mechanism further comprises a first locking unit arranged on the first external connecting piece, the first locking unit comprises a first frame arranged on the first external connecting piece, a first clamping block arranged in the first frame and capable of sliding relative to the first frame, and a first elastic piece arranged in the first frame and respectively abutted against the first frame and the first clamping block at two opposite ends, the first clamping block is provided with a first clamping end part, the first clamping block is pressurized by the first elastic piece to enable the first clamping end part to abut against the first outer convex surface, and when the first substrate unit is converted from a flattening state to a folding state, the first clamping block is interlocked with the first external guiding piece to slide relative to the first locking unit, so that the first clamping end part is converted from one of the first external guiding plane parts abutting against the first external guiding part along the first external guiding plane part to be abutted against the first external guiding part The other one of them.