Hinge structure in infolding flexible screen terminal

Abstract

The utility model discloses a hinge structure in an infolding flexible screen terminal. The hinge structure comprises a wrapping part, the base set, the connecting piece set, the torque synchronization module, the floating plate set, the wrapping piece, the base set, the connecting piece set and the floating plate set can be fixedly connected together in sequence through connecting pieces. The hinge structure has the beneficial effects that the hinge structure is formed by fewer parts, so that the hinge structure is relatively stable when being compared with a traditional structure, the two bent ends keep the same torque when the hinge structure is bent by arranging the torque synchronization module, and in addition, the hinge structure is relatively wide in application range and relatively high in practicability. The method can be widely applied to foldable equipment using flexible screens, such as mobile phones and tablet computers.

Description

Technical Field

[0001] The present application relates to the field of inward-folding flexible screen terminals, and in particular to a hinge structure in an inward-folding flexible screen terminal. Background Art

[0002] In the field of inward-folding flexible screen terminals, the flexible screen needs to be folded inward through a hinge structure. The hinge structure in the existing technical solution has a relatively complex structure. The complex structure increases the assembly gap between parts, affects the synchronization of parts, and is prone to shaking, which ultimately affects the stability of the hinge structure during rotation. Summary of the invention

[0003] The purpose of this application is to propose a hinge structure in an inward-folding flexible screen terminal to solve the above-mentioned technical problems.

[0004] A hinge structure in an inward-folding flexible screen terminal, comprising a covering member;

[0005] A base group, the base group is located in the covering member, the base group is detachably connected to the covering member, and a base slide group and a floating slide group are arranged in the base group;

[0006] A connecting member group, wherein a sliding member group and a connecting member slide groove group are arranged in the connecting member group, the sliding member group is arranged on the side of the connecting member slide groove group, the sliding member group is located in the base slide groove group and can slide in the base slide groove group, and a clamping part group is arranged at both ends of the connecting member group;

[0007] A torque synchronization module, one end of which is detachably connected to the covering member, the torque synchronization module is located on one side of the base member, and both ends of the torque synchronization module are located in the connecting member slide groove group, and both ends of the torque synchronization module can slide in the connecting member slide groove group;

[0008] A floating plate group, wherein a slot group is disposed at the lower end of the floating plate group, wherein the engaging portion group on the connecting member group can be engaged in the slot group, and a floating sliding member group is also disposed at one end of the floating plate group, wherein the floating sliding member group can slide in the floating sliding slot group;

[0009] The covering member, the base group, the connecting member group and the floating plate group can be fixedly connected together in sequence through the connecting member.

[0010] The beneficial effects are: the hinge structure is composed of fewer parts, so that the hinge structure is more stable when moving than the traditional structure. By setting a torque synchronization module, when the hinge structure is bent, the two ends of the bend maintain the same torque. In addition, the hinge structure has a wide range of applications and can be widely used in foldable devices using flexible screens such as mobile phones and tablets.

[0011] Preferably, a plurality of covering member positioning holes are arranged on the inner side of the covering member.

[0012] The beneficial effect is that by setting a plurality of positioning holes of the covering part, other parts of the hinge structure are fixed to the covering part by using fasteners such as bolts.

[0013] Preferably, the base group includes a first base and a second base which are arranged adjacent to each other;

[0014] The base chute group includes a first chute located in the first base, and a second chute located in the second base;

[0015] The floating chute group includes a first floating chute and a second floating chute, the first floating chute is located on one side of the first chute, and the second floating chute is located on one side of the second chute;

[0016] A first base hole is arranged at one end of the first base, and a second base hole is arranged at one end of the second base.

[0017] Preferably, the connecting member group includes a first connecting member and a second connecting member located on both sides of the covering member;

[0018] The sliding member assembly includes a first sliding member located in the first connecting member, and a second sliding member located in the second connecting member;

[0019] The connecting member sliding groove group includes a first connecting member sliding groove located in the first connecting member, and a second connecting member sliding groove located in the second connecting member.

[0020] Preferably, the first sliding member is located on the side of the first connecting member sliding groove, and the first sliding member can slide in the second sliding groove;

[0021] The second sliding member is located on the side of the second connecting member sliding groove, and the second sliding member can slide in the first sliding groove.

[0022] Preferably, the engaging portion group includes: first engaging members are arranged at both ends of the first connecting member, and second engaging members are arranged at both ends of the second connecting member.

[0023] Preferably, the torque synchronization module includes a bearing, a first sleeve, a gear arm assembly, a cam, an elastic member, a second sleeve, and a retaining spring;

[0024] The first shaft sleeve, the gear arm assembly, the cam, the elastic member, the second shaft sleeve and the retaining spring are sequentially sleeved on the bearing.

[0025] The beneficial effect is that the first shaft sleeve and the second shaft sleeve have a lateral limiting effect on the bearing.

[0026] Preferably, the gear arm group includes a first gear arm and a second gear arm, the first gear arm can slide in the first connecting member slot, and the second gear arm can slide in the second connecting member slot; the contact surface between the first gear arm and the first connecting member slot is an arc surface, and the contact surface between the second gear arm and the second connecting member slot is an arc surface.

[0027] The beneficial effect is that the first gear arm can reduce the wear of the first gear arm and the first connecting member slot by sliding in the first connecting member slot and rolling with the contact surface being an arc surface, thereby increasing the service life;

[0028] The second gear arm can reduce the wear of the second gear arm and the second connecting member slot by sliding in the second connecting member slot and rolling with the contact surface being an arc surface, thereby increasing the service life;

[0029] Preferably, the gear arm set further includes a gear arranged between the first gear arm and the second gear arm.

[0030] The beneficial effect is that the arranged gears enable the first gear arm and the second gear arm to maintain the same torque when they are bent.

[0031] Preferably, the floating plate group includes a first floating plate and a second floating plate, the slot group includes a first clamping portion provided on the first floating plate, and a second clamping portion provided on the second floating plate, the first clamping member can be clamped on the first clamping portion, and the second clamping member can be clamped on the second clamping portion;

[0032] The floating sliding member group includes a first floating sliding member and a second floating sliding member. The first floating sliding member is arranged at one end of the first floating plate and can slide in the second floating sliding groove. The second floating sliding member is arranged at one end of the second floating plate and can slide in the first floating sliding groove.

[0033] Its beneficial effects are: on the one hand, the first engaging member is engaged with the first engaging portion, and the second engaging member can be engaged with the second engaging portion, so that the first connecting member and the second connecting member can respectively drive the first floating plate and the second floating plate to rotate when rotating; on the other hand, the first floating sliding member can slide in the second floating sliding groove, and the second floating sliding member can slide in the first floating sliding groove, so that after the first connecting member and the second connecting member stop rotating, the first floating plate and the second floating plate can respectively rotate at a certain angle relative to the first connecting member and the second connecting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present application.

[0036] Figure 2 for Figure 1 Exploded view of parts.

[0037] Figure 3 for Figure 1 Exploded view of parts.

[0038] Figure 4 for Figure 2 Schematic diagram of the structure of the first connecting member.

[0039] Figure 5 for Figure 2 Schematic diagram of the structure of the second connecting member.

[0040] Figure 6 for Figure 2 Schematic diagram of the structure of the first floating plate.

[0041] Figure 7 for Figure 2 Schematic diagram of the structure of the second floating plate.

[0042] Figure 8 for Figure 1 A front view of the hinge structure in the open state.

[0043] Fig. 9 for Figure 8 sectional view of .

[0044] Fig.10 for Figure 1 A front view of the hinge structure in a closed state.

[0045] Fig.11 for Fig.10 sectional view of .

[0046] Fig.12 for Figure 1 Exploded view of the parts of the medium torque synchronization module.

[0047] Fig.13 for Fig.12 Schematic diagram of the structure.

[0048] Description of the reference numerals in the accompanying drawings:

[0049] 1. Covering part; 2. Base assembly; 3. Connecting part assembly; 4. Sliding part assembly; 5. Connecting part slideway assembly; 6. Torque synchronization module; 7. Floating plate assembly; 8. Slot assembly; 9. Base slideway assembly; 10. Engaging part assembly; 11. Covering part positioning hole; 12. Floating sliding part assembly; 13. Floating slideway assembly; 21. First base; 22. Second base; 31. First connecting part; 32. Second connecting part; 41. First sliding part; 42. Second sliding part; 51. First connecting part slideway; 52. Second connecting part slideway; 61. Bearing; 62. First bushing; 63. Gear Arm group; 64, cam; 65, elastic member; 66, second bushing; 67, retaining spring; 71, first floating plate; 72, second floating plate; 81, first engaging portion; 82, second engaging portion; 91, first slide groove; 92, second slide groove; 211, first base hole; 221, second base hole; 311, first engaging member; 321, second engaging member; 631, first gear arm; 632, second gear arm; 633, gear; 121, first floating sliding member; 122, second floating sliding member; 131, first floating slide groove; 132, second floating slide groove. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are part of the embodiments of the present application, rather than all of the embodiments, and are only used to explain the present application, and are not used to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0051] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "two ends", "both sides", "bottom", "top" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred elements must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present application. In addition, the terms "first", "second", "superior", "inferior", "primary", "secondary" and the like are only used for descriptive purposes and can be simply used to more clearly distinguish different components, but cannot be understood as indicating or implying relative importance.

[0052] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] like Figures 1 to 13 Shown are relevant views of Example 1 of the present application.

[0054] A hinge structure in an inward folding flexible screen terminal, comprising a covering member 1;

[0055] A base assembly 2, the base assembly 2 is located inside the covering member 1, the base assembly 2 is detachably connected to the covering member 1, and a base slide assembly 9 and a floating slide assembly 13 are provided inside the base assembly 2;

[0056] A connecting member group 3, wherein a sliding member group 4 and a connecting member slide groove group 5 are arranged in the connecting member group 3, wherein the sliding member group 4 is arranged on the side of the connecting member slide groove group 5, and the sliding member group 4 is located in the base slide groove group 9 and can slide in the base slide groove group 9, and a clamping part group 10 is arranged at both ends of the connecting member group 3;

[0057] A torque synchronization module 6, one end of which is detachably connected to the covering member 1, the torque synchronization module 6 is located on one side of the base member 2, and both ends of the torque synchronization module 6 are located in the connecting member slide groove group 5, and both ends of the torque synchronization module 6 can slide in the connecting member slide groove group 5;

[0058] A floating plate group 7, a slot group 8 is provided at the lower end of the floating plate group 7, and the engaging portion group 10 on the connecting member group 3 can be engaged in the slot group 8. A floating sliding member group 12 is also provided at one end of the floating plate group 7, and the floating sliding member group 12 can slide in the floating sliding slot group 13;

[0059] The covering member 1, the base assembly 2, the connecting member assembly 3, and the floating plate assembly 7 can be fixedly connected together in sequence by connecting members, wherein the connecting members can be fasteners such as bolts.

[0060] --It should be noted that in the hinge structure of this embodiment, the number of the base group 2, the connecting member group 3, and the torque synchronization module 6 is set to at least two groups, and the two groups of parts are respectively arranged at the upper and lower ends of the covering member 1.

[0061] --A plurality of covering member positioning holes 11 are arranged on the inner side of the covering member 1.

[0062] --The base group 2 includes a first base 21 and a second base 22 that are adjacently arranged;

[0063] The base slide groove group 9 includes a first slide groove 91 located in the first base 21 and a second slide groove 92 located in the second base 22;

[0064] The floating chute group 13 includes a first floating chute 131 and a second floating chute 132. The first floating chute 131 is located on one side of the first chute 91, and the second floating chute 132 is located on one side of the second chute 92.

[0065] A first base hole 211 is disposed at one end of the first base 21 , and a second base hole 221 is disposed at one end of the second base 22 .

[0066] The first base 21 and the second base 22 can be fixed in the covering member 1 by installing fasteners such as bolts in the first base hole 211 and the second base hole 221 .

[0067] --The connecting member group 3 includes a first connecting member 31 and a second connecting member 32 located on both sides of the covering member 1;

[0068] The sliding member group 4 includes a first sliding member 41 located in the first connecting member 31, and a second sliding member 42 located in the second connecting member 32;

[0069] The connecting member sliding groove group 5 includes a first connecting member sliding groove 51 located in the first connecting member 31 , and a second connecting member sliding groove 52 located in the second connecting member 32 .

[0070] --The first sliding member 41 is located on the side of the first connecting member sliding groove 51, and the first sliding member 41 can slide in the second sliding groove 92;

[0071] The second sliding member 42 is located on the side of the second connecting member sliding groove 52 , and the second sliding member 42 can slide in the first sliding groove 91 .

[0072] The clamping member set 10 includes: first clamping members 311 are provided at both ends of the first connecting member 31, and second clamping members 321 are provided at both ends of the second connecting member 32;

[0073] --The torque synchronization module 6 includes a bearing 61, a first sleeve 62, a gear arm assembly 63, a cam 64, an elastic member 65, a second sleeve 66, and a retaining spring 67;

[0074] The first sleeve 62 , the gear arm assembly 63 , the cam 64 , the elastic member 65 , the second sleeve 66 , and the retaining spring 67 are sequentially sleeved on the bearing 61 .

[0075] In the present embodiment, the number of the first sleeve 62, the cam 64 and the elastic member 65 is set to at least four, wherein the elastic member 65 can be a component with elastic reset function such as a spring.

[0076] In addition, a second sleeve hole is provided on the second sleeve 66 , and fasteners such as bolts can be used to fix the torque synchronization module 6 in the covering member 1 through the second sleeve hole.

[0077] --The gear arm group 63 includes a first gear arm 631 and a second gear arm 632. The first gear arm 631 can slide in the first connecting member slot 51, and the second gear arm 632 can slide in the second connecting member slot 52; the contact surface between the first gear arm 631 and the first connecting member slot 51 is an arc surface, and the contact surface between the second gear arm 632 and the second connecting member slot 52 is an arc surface.

[0078] The first gear arm 631 can reduce the wear of the first gear arm 631 and the first connecting member slot 51 by sliding in the first connecting member slot 51 and rolling with the contact surface being an arc surface, thereby increasing the service life;

[0079] The second gear arm 632 can reduce the wear of the second gear arm 632 and the second connecting member slot 52 by sliding in the second connecting member slot 52 and rolling with the contact surface being an arc surface, thereby increasing the service life;

[0080] The gear arm assembly 63 further includes a gear 633 disposed between the first gear arm 631 and the second gear arm 632 .

[0081] The gear 633 is provided so that the first gear arm 631 and the second gear arm 632 maintain the same torque when bending.

[0082] At least two gears 633 are provided. The two gears 633 are located between the first gear arm 631 and the second gear arm 632 in sequence, and the two gears 633 are respectively sleeved on two bearings 61 in the middle of the four bearings 61 .

[0083] --The floating plate group 7 includes a first floating plate 71 and a second floating plate 72, the slot group 8 includes a first clamping portion 81 provided on the first floating plate 71, and a second clamping portion 82 provided on the second floating plate 72, the first clamping member 311 can be clamped on the first clamping portion 81, and the second clamping member 321 can be clamped on the second clamping portion 82.

[0084] The floating sliding member group 12 includes a first floating sliding member 121 and a second floating sliding member 122. The first floating sliding member 121 is arranged at one end of the first floating plate 71, and the first floating sliding member 121 can slide in the second floating groove 132. The second floating sliding member 122 is arranged at one end of the second floating plate 72, and the second floating sliding member 122 can slide in the first floating groove 131.

[0085] In addition, when the first sliding member 41 and the second sliding member 42 slide in the second sliding groove 92 and the first sliding groove 91 respectively, the first connecting member 31 and the second connecting member 32 will respectively drive the first floating plate 71 and the second floating plate 72 to rotate when they rotate. At the same time, the first floating sliding member 121 slides in the second floating sliding groove 132, and the second floating sliding member 121 slides in the first floating sliding groove 131; when the first sliding member 41 and the second sliding member 42 slide to the fixed point in the second sliding groove 92 and the first sliding groove 91 respectively, the first connecting member 31 and the second connecting member 32 stop rotating. At this time, the first floating sliding member 121 slides in the second floating sliding groove 132, and the sliding of the second floating sliding member 121 in the first floating sliding groove 131 does not stop. Therefore, after the first connecting member 31 and the second connecting member 32 stop rotating, the first floating plate 71 and the second floating plate 72 can rotate a certain angle relative to the first connecting member 31 and the second connecting member 32 respectively. In the closed state of the hinge structure, the first floating plate 71 and the second floating plate 72 can leave space for the screen.

[0086] --In the present embodiment, the first engaging portion 81 and the second engaging portion 82 are respectively provided with grooves which are adapted to the shapes of the first engaging member 311 and the second engaging member 321. The grooves may be curved arc grooves, so that after the first engaging portion 81 and the second engaging portion 82 are engaged, the first floating plate 71 and the second floating plate 72 can rotate around the grooves.

[0087] --like Figures 8-9 As shown, it is a structural schematic diagram of the hinge structure in the open state.

[0088] --like Figures 10-11 The figure shows a schematic diagram of the structure of the hinge structure in a closed state.

[0089] When the hinge structure is in the process of opening and closing, the force applied by the person acts on the first connecting member 31 and the second connecting member 32 respectively, and the first sliding member 41 and the second sliding member 42 slide in the second slide groove 92 and the first slide groove 91 respectively, so that the first connecting member 31 and the second connecting member 32 are close to each other. At the same time, the closeness of the first connecting member 31 and the second connecting member 32 drives the first floating plate 71 and the second floating plate 72 to be close to each other. The first floating sliding member 121 slides in the second floating slide groove 132 toward the distal direction, and the second floating sliding member 121 slides in the first floating slide groove 131 toward the distal direction. The first gear arm 631 and the second gear arm 632 slide in the first connecting member slide groove 51 and the second connecting member slide groove 52 toward the distal direction respectively. The first sliding member 41 and the second sliding member 42 slide in the second slide groove 92 and the second slide groove 92 toward the distal direction respectively.

[0090] When the first sliding member 41 and the second sliding member 42 slide to the fixed points in the second sliding groove 92 and the first sliding groove 91 respectively, the first connecting member 31 and the second connecting member 32 stop approaching each other; at this time, the first floating sliding member 121 slides in the second floating sliding groove 132, and the second floating sliding member 121 slides in the first floating sliding groove 131 without stopping, so the first floating plate 71 and the second floating plate 72 can rotate a certain angle relative to the first connecting member 31 and the second connecting member 32 respectively before stopping approaching each other.

[0091] When the hinge structure moves from closed to open, the force applied by the person acts on the first connecting member 31 and the second connecting member 32, so that the first connecting member 31 and the second connecting member 32 move away from each other. At the same time, the mutual movement of the first connecting member 31 and the second connecting member 32 drives the first floating plate 71 and the second floating plate 72 to move away from each other. The first gear arm 631 and the second gear arm 632 slide toward the proximal direction in the first connecting member slide groove 51 and the second connecting member slide groove 52, respectively. The first sliding member 41 and the second sliding member 42 slide toward the proximal direction in the second slide groove 92 and the second slide groove 92, respectively.

[0092] --It should also be noted that, due to the presence of the torque synchronization module 6 in the hinge structure, the force only acts on the first connecting member 31; the force only acts on the second connecting member 32; the force acts on both the first connecting member 31 and the second connecting member 32. Regardless of the magnitude of the force, the torque synchronization module 6 will make the first gear arm 631 and the second gear arm 632 slide in the first connecting member 31 slide groove and the second connecting member 32 slide groove respectively with the same torque, thereby ensuring that the first connecting member 31 and the second connecting member 32 have the same opening and closing angles when they are opened or closed, and also ensuring that the first floating plate 71 and the second floating plate 72 have the same opening and closing angles when they are opened or closed.

[0093] The above are only some embodiments of the present application, which are only used to illustrate the technical solution of the present application, rather than to limit it. It should be understood that, for those skilled in the art, without departing from the creative concept of the present application, it is possible to improve or replace it according to the above description, and all these improvements and replacements should belong to the protection scope of the claims attached to the present application. In this case, all details can be replaced by equivalent elements, and the materials, shapes and sizes can also be arbitrary.

Claims

1. A hinge structure in an inward folding flexible screen terminal, characterized in that: comprising a covering member (1); A base group (2), the base group (2) is located in the covering member (1), the base group (2) is arranged on the covering member (1), and a base slide groove group (9) and a floating slide groove group (13) are arranged in the base group (2); A connecting member group (3), wherein a sliding member group (4) and a connecting member slide groove group (5) are arranged inside the connecting member group (3), wherein the sliding member group (4) is arranged on the side of the connecting member slide groove group (5), wherein the sliding member group (4) is located inside the base slide groove group (9) and can slide inside the base slide groove group (9), and wherein a clamping portion group (10) is arranged at both ends of the connecting member group (3); A torque synchronization module (6), one end of the torque synchronization module (6) is arranged on the covering member (1), the torque synchronization module (6) is located on one side of the base member (2), and both ends of the torque synchronization module (6) are located in the connecting member slide groove group (5), and both ends of the torque synchronization module (6) are able to slide in the connecting member slide groove group (5); A floating plate group (7), wherein a slot group (8) is provided at the lower end of the floating plate group (7), and the engaging portion group (10) on the connecting member group (3) can be engaged in the slot group (8). A floating sliding member group (12) is also provided at one end of the floating plate group (7), and the floating sliding member group (12) can slide in the floating sliding slot group (13).

2. The hinge structure in the inward folding flexible screen terminal according to claim 1, characterized in that: The covering member (1), the base assembly (2), the connecting member assembly (3), and the floating plate assembly (7) can be fixedly connected together in sequence via the connecting member; a plurality of covering member positioning holes (11) are arranged on the inner side of the covering member (1).

3. The hinge structure in the inward folding flexible screen terminal according to claim 1, characterized in that: The base group (2) comprises a first base (21) and a second base (22) which are arranged adjacent to each other; The base slide groove group (9) comprises a first slide groove (91) located in the first base (21), and a second slide groove (92) located in the second base (22); The floating chute group (13) comprises a first floating chute (131) and a second floating chute (132), wherein the first floating chute (131) is located on one side of the first chute (91), and the second floating chute (132) is located on one side of the second chute (92); One end of the first base (21) is provided with a first base hole (211), and one end of the second base (22) is provided with a second base hole (221).

4. The hinge structure in the inward folding flexible screen terminal according to claim 1, characterized in that: The connecting member group (3) comprises a first connecting member (31) and a second connecting member (32) located on both sides of the covering member (1); The sliding member group (4) comprises a first sliding member (41) located in the first connecting member (31), and a second sliding member (42) located in the second connecting member (32); The connecting member sliding groove group (5) comprises a first connecting member sliding groove (51) located in the first connecting member (31), and a second connecting member sliding groove (52) located in the second connecting member (32).

5. The hinge structure in the inward folding flexible screen terminal according to claim 4, characterized in that: The first sliding member (41) is located on the side of the first connecting member sliding groove (51), and the first sliding member (41) can slide in the second sliding groove (92); The second sliding member (42) is located on the side of the second connecting member sliding groove (52), and the second sliding member (42) can slide in the first sliding groove (91).

6. The hinge structure in the inward folding flexible screen terminal according to claim 4, characterized in that: The engaging portion group (10) comprises: first engaging members (311) are arranged at both ends of the first connecting member (31); and second engaging members (321) are arranged at both ends of the second connecting member (32).

7. The hinge structure in the inward folding flexible screen terminal according to claim 4, characterized in that: The torque synchronization module (6) comprises a bearing (61), a first shaft sleeve (62), a gear (633) arm group (63), a cam (64), an elastic member (65), a second shaft sleeve (66), and a retaining spring (67); The first shaft sleeve (62), the gear arm assembly (63), the cam (64), the elastic member (65), the second shaft sleeve (66), and the retaining spring (67) are sequentially sleeved on the bearing (61).

8. The hinge structure in the inward folding flexible screen terminal according to claim 7, characterized in that: The gear arm group (63) comprises a first gear arm (631) and a second gear arm (632); the first gear arm (631) can slide in the first connecting member slide groove (51), and the second gear arm (632) can slide in the second connecting member slide groove (52); the contact surface between the first gear arm (631) and the first connecting member slide groove (51) is an arc surface, and the contact surface between the second gear arm (632) and the second connecting member slide groove (52) is an arc surface.

9. The hinge structure in the inward folding flexible screen terminal according to claim 8, characterized in that: The gear arm assembly (63) further comprises a gear (633) arranged between the first gear arm (631) and the second gear arm (632).

10. The hinge structure in an inward folding flexible screen terminal according to claim 6, characterized in that: The floating plate group (7) comprises a first floating plate (71) and a second floating plate (72), the slot group comprises (8) a first engaging portion (81) provided on the first floating plate (71), and a second engaging portion (82) provided on the second floating plate (72), the first engaging member (311) can be engaged with the first engaging portion (81), and the second engaging member (321) can be engaged with the second engaging portion (82); The floating sliding member group (12) includes a first floating sliding member (121) and a second floating sliding member (122), wherein the first floating sliding member (121) is arranged at one end of a first floating plate (71), and the first floating sliding member (121) can slide in a second floating sliding groove (132), and the second floating sliding member (122) is arranged at one end of a second floating plate (72), and the second floating sliding member (122) can slide in the first floating sliding groove (131).

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