Folding hinge

Abstract

The utility model discloses a folding hinge which comprises two sets of shells and a linkage damping assembly, the two sets of shells are connected through the linkage damping assembly, the linkage damping assembly comprises two sets of supports, a limiting support, a first gear, a second gear and a damping piece, the two sets of supports are provided with gear shafts, and the limiting support is arranged on the first gear. The two supports are connected with the limiting support through gear shafts, the gear shafts are sleeved with first gears, the two first gears are connected with a second gear in a meshed mode, and the first gears and the second gear are provided with damping pieces. The folding hinge solves the technical problem that in the prior art, hinge actions of a folding hinge are many and complex, and the folding hinge is simple and efficient in hinge action, easy to assemble, stable in connecting structure and small in space occupation ratio.

Description

Technical Field

[0001] The utility model relates to the field of hinges, in particular to a folding hinge. Background Art

[0002] With the development of flexible OLED display technology and the fact that foldable electronic devices combine the portability of ordinary electronic devices with the ultimate experience of large-screen display when unfolded, foldable electronic devices have gradually become an important trend in the development of mobile terminals and have become an important area of ​​competition among major terminal manufacturers.

[0003] However, the existing folding hinge structure has the problem of multiple and complex hinge action mechanisms, unstable structural connection, large space occupation rate in the mobile terminal, and the hinge cannot match the appearance of any mobile terminal. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a folding hinge to solve the technical problem that the existing folding structure has many and complex hinge actions, so as to achieve the effects of simple and efficient hinge action, easy assembly, stable connection structure and small space occupancy of the folding hinge.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A folding hinge comprises a shell and a linkage damping assembly, wherein the shell is provided in two groups and the two groups of the shells are connected via the linkage damping assembly, wherein the linkage damping assembly comprises a bracket, a limit bracket, a first gear, a second gear and a damping member, wherein the bracket is provided in two groups and both groups of the brackets are provided with a gear shaft, wherein the two groups of the brackets are connected to the limit bracket via the gear shaft, wherein the first gear is sleeved on the gear shaft, and the two first gears are respectively meshed with the second gear, and the first gear and the second gear are provided with the damping member.

[0007] As a further improvement of the above technical solution, both groups of the shells are provided with a first groove, and the bracket is installed in the first groove.

[0008] As a further improvement of the above technical solution, the linkage damping components are provided in two groups, a connecting frame is provided between the two groups of the linkage damping components, and the connecting frame is connected to the bracket.

[0009] As a further improvement of the above technical solution, the connection between the bracket and the connecting frame is a plug-in connection, a plug-in groove is provided at the bottom of the bracket, and a plug-in part is provided on the connecting frame, and the plug-in groove and the plug-in part are arranged correspondingly.

[0010] As a further improvement of the above technical solution, a shaft cover is provided on the upper part of the bracket, and second grooves are provided at both ends of the shaft cover, and the gear shaft is installed in the second groove.

[0011] As a further improvement of the above technical solution, the shell is provided with a first through hole, the bracket is provided with a second through hole and a first connecting member, the second through hole is arranged corresponding to the first through hole, the bracket is connected to the shell through the first connecting member, and the first connecting member passes through the first through hole and the second through hole.

[0012] As a further improvement of the above technical solution, second connecting members are provided at both ends of the connecting frame, and the second connecting members are connected to the bracket.

[0013] As a further improvement of the above technical solution, the connecting member is provided with a third through hole, the bracket is provided with a screw hole column, the screw hole column is provided with a screw hole, the outer surface of the screw hole column is provided with a spring, one end of the spring is connected to the screw hole column, and the other end of the spring is connected to the third through hole, the screw hole is threadedly connected with a screw, and the screw is used to fix the spring.

[0014] As a further improvement of the above technical solution, the limiting bracket is provided with a fourth through hole, and the gear shaft is connected to the limiting bracket through the fourth through hole.

[0015] As a further improvement of the above technical solution, the damping member is a friction plate, and a plurality of friction plates are provided on the upper part of the first gear and the second gear, and the thickness of the overlapping friction plates is flush with the overall height of the first gear and the second gear.

[0016] The beneficial effects of the utility model are:

[0017] The folding hinge provided by the utility model has a simple and efficient hinge action, simple assembly, and a small space occupancy rate. The two groups of outer shells are folded toward each other, and the outer shells drive the brackets, and the gear shafts arranged on the brackets also rotate accordingly. The first gear sleeved with the gear shaft also rotates along with the gear shaft. The rotation of one first gear drives the other first gear to rotate through the two second gears, thereby making the two groups of outer shells flip synchronously. At the same time, the two groups of linkage damping components are connected by setting a connecting frame, which increases the stability of the device connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model in an expanded state;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model in a closed state;

[0021] Figure 3 This is a structural split diagram of the structural part of the utility model;

[0022] Figure 4 It is a structural disassembly diagram of the linkage damping component of the utility model.

[0023] Reference numerals:

[0024] 1. Linkage damping assembly; 2. Connecting frame; 3. Housing; 4. Shaft cover; 5. Bracket; 6. Limit bracket; 7. First gear; 8. Second gear; 9. Friction plate; 10. Gear shaft; 11. Spring; 12. Screw. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that according to the specific implementation situation, a better connection structure can be formed by adding or reducing connection accessories. For example, fixed connection / fixed installation can be selected according to the needs of screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and other methods. For example, detachable connection can be selected according to the needs of screw connection, bolt connection, threaded connection, snap connection, mortise and tenon connection, Velcro connection and other methods. The various technical features in the creation of the utility model can be combined interactively without conflicting with each other.

[0026] The utility model embodiment provides a folding hinge, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a housing 3, a connecting frame 2 and a linkage damping component 1, the housing 3 is provided with two groups, the two groups of the housing 3 are connected by two groups of the linkage damping components 1, the connecting frame 2 is provided between the two groups of the linkage damping components 1, the linkage damping component 1 includes a bracket 5, a limit bracket 6, a first gear 7, a second gear 8 and a damping member, for details, please refer to Figure 4In this embodiment, the damping member is three friction plates, two groups of the bracket 5 are provided, two groups of the connecting frame 2 are provided, the connecting frame 2 is connected to the bracket 5, the two groups of the bracket 5 are provided with a gear shaft 10, the two groups of the bracket 5 are connected to the limiting bracket 6 through the gear shaft 10, the gear shaft 10 is sleeved with the first gear 7, the two first gears 7 are respectively meshed and connected with the second gear 8, and the first gear 7 and the second gear 8 are provided with friction plates.

[0027] Specifically, both ends of one side of the two groups of the shells 3 are provided with a first groove, and the first groove is arranged corresponding to the bracket 5. By arranging the first groove on the shell, the contact area between the shell 3 and the bracket 5 can be increased, and the stability of the folding hinge can be improved. The connection between the bracket 5 and the connecting frame 2 is a plug-in connection. The bottom of the bracket 5 is provided with a plug-in groove, and the connecting frame is provided with a plug-in part, and the plug-in groove is arranged corresponding to the plug-in part. The upper part of the bracket 5 is provided with a shaft cover 4, and the two ends of the shaft cover 4 are provided with a second groove, and the gear shaft 10 is installed in the second groove. The shell 3 is provided with a first through hole, and the bracket 5 is provided with a second through hole and a first connecting member, and the second through hole is arranged corresponding to the first through hole. The bracket 5 is connected to the shell 3 through the first connecting member, and the first connecting member passes through the first through hole and the second through hole. The two ends of the connecting frame 2 are provided with second connecting members, and the second connecting member is connected to the bracket, and the second connecting member is provided with a third through hole. The bracket 5 is provided with a screw hole column, and the screw hole column is provided with a screw hole. A spring 11 is provided on the outer surface of the screw hole column. One end of the spring 11 is connected to the screw hole column, and the other end of the spring 11 is connected to the third through hole. The screw hole is threadedly connected with a screw 12, and the screw 12 is used to fix the spring 11.

[0028] Specifically, the position-limiting bracket 6 is provided with a fourth through hole, and the fourth through hole is arranged corresponding to the gear shaft 10, and the gear shaft 10 is connected to the position-limiting bracket 6 through the fourth through hole. The damping member is a friction plate 9, and a plurality of friction plates 9 are arranged on the upper part of the first gear 7 and the second gear 8, and the stacked thickness of the plurality of friction plates 9 is flush with the overall height of the first gear 7 and the second gear 8. In this embodiment, the number of friction plates 9 is three, and the friction plates 9 are arranged on the upper part of the first gear 7 and the upper part of the second gear 8, and the friction plates 9 are used to generate damping force by interference fit with the first gear 7 and the second gear 8.

[0029] The assembly process of the utility model is as follows: install the limit bracket 6 into the gear shaft 10 of the two groups of brackets 5, then place the first gear 7 above the limit bracket 6 through the gear shaft 10, install the second gear 8 into the corresponding hole of the limit bracket 6, and then install the friction plate 9 into the corresponding first gear 7 and second gear 8 to complete the assembly of the linkage damping assembly 1, install the linkage damping assembly 1 into the groove of the corresponding shaft cover 4, and then insert the plug-in end of the connecting frame 2 into the plug-in groove at the bottom of the bracket 5, connect the connecting frame 2 with the bracket 5, and then install the spring 11 in the screw hole column, one end of the spring 11 is connected to the screw hole column, and the other end is connected to the connecting piece on the connecting frame 2, and finally set a screw 12 on the upper part of the screw hole column to lock the position of the spring 11.

[0030] The utility model provides a folding hinge, which has the advantages of simple and efficient hinge action, simple assembly, stable connection structure and small space occupancy rate. Two groups of shells 3 are folded towards each other, and the shells 3 drive the brackets 5, and the gear shaft 10 arranged on the brackets 5 also rotates accordingly. The first gear 7 sleeved and connected with the gear shaft 10 also rotates with the gear shaft 10. The rotation of one first gear 7 drives the other first gear 7 to rotate through two second gears 8, so that the two groups of shells 3 are turned over synchronously. At the same time, the two groups of linkage damping components 1 are connected by setting a connecting frame 2, which increases the stability of the device connection.

[0031] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A folding hinge, characterized in that: It includes a shell and a linkage damping assembly, wherein two groups of the shells are provided, and the two groups of the shells are connected through the linkage damping assembly, and the linkage damping assembly includes a bracket, a limit bracket, a first gear, a second gear and a damping member, wherein two groups of the brackets are provided, and both groups of the brackets are provided with a gear shaft, and the two groups of the brackets are connected to the limit brackets through the gear shaft, and the gear shaft is sleeved with the first gear, and the two first gears are respectively meshed with the second gear, and the first gear and the second gear are provided with the damping member.

2. A folding hinge according to claim 1, characterized in that: Both groups of the shells are provided with a first groove, and the bracket is installed in the first groove.

3. The folding hinge according to claim 1, characterized in that: The linkage damping components are arranged in two groups, a connecting frame is arranged between the two groups of the linkage damping components, and the connecting frame is connected to the bracket.

4. A folding hinge according to claim 3, characterized in that: The connection between the bracket and the connecting frame is a plug-in connection, a plug-in slot is provided at the bottom of the bracket, and a plug-in portion is provided at the connecting frame, and the plug-in slot and the plug-in portion are arranged correspondingly.

5. The folding hinge according to claim 1, characterized in that: A shaft cover is provided on the upper part of the bracket, and second grooves are provided at both ends of the shaft cover, and the gear shaft is installed in the second groove.

6. The folding hinge according to claim 1, characterized in that: The shell is provided with a first through hole, the bracket is provided with a second through hole and a first connecting piece, the second through hole is arranged corresponding to the first through hole, the bracket is connected to the shell through the first connecting piece, and the first connecting piece passes through the first through hole and the second through hole.

7. The folding hinge according to claim 3, characterized in that: The two ends of the connecting frame are provided with second connecting pieces, and the second connecting pieces are connected to the bracket.

8. The folding hinge according to claim 6, characterized in that: The connecting piece is provided with a third through hole, the bracket is provided with a screw hole column, the screw hole column is provided with a screw hole, a spring is provided on the outer surface of the screw hole column, one end of the spring is connected to the screw hole column, and the other end of the spring is connected to the third through hole, the screw hole is threadedly connected with a screw, and the screw is used to fix the spring.

9. The folding hinge according to claim 1, characterized in that: The limiting bracket is provided with a fourth through hole, and the gear shaft is connected to the limiting bracket through the fourth through hole.

10. The folding hinge according to claim 1, characterized in that: The damping member is a friction plate, and a plurality of friction plates are arranged on the upper part of the first gear and the second gear. The thickness of the overlapping friction plates is flush with the overall height of the first gear and the second gear.

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