Hinge structure and electronic device

Abstract

The application discloses a hinge structure and an electronic device. The hinge structure comprises a base, a swing arm and a support, the swing arm is rotationally connected to the base, one of the swing arm and the support is provided with a rack, and the other is provided with a gear, the gear and the rack are in meshing connection; during rotation of the swing arm relative to the base, the gear rotates, the rack moves relative to the gear, and the swing arm moves relative to the support in a direction perpendicular to the rotation axis. The hinge structure and the electronic device provided by the application can effectively reduce the amount of twisting, reduce the situation of jamming or loosening during folding, and improve the user experience.

Description

Technical Field

[0001] This application relates to the field of foldable electronic device technology, and in particular to a hinge structure and electronic device. Background Technology

[0002] With the rapid development of technology, foldable electronic devices have gradually gained popularity among many users. Foldable electronic devices provide users with a larger viewing screen while meeting their demand for portability. Among these components, the hinge structure is a crucial element in enabling the folding function of foldable electronic devices, and its quality directly affects the user's folding experience.

[0003] The hinge structure mainly consists of a base and two swing arms, which are rotatably connected to opposite sides of the base. A bracket is attached to each swing arm, which is used to connect to the housing of the electronic device. The bracket and swing arms are slidably connected via a sliding assembly. Because the sliding assembly has a clearance fit, the foldable electronic device experiences significant swaying during the relative sliding of the bracket and swing arms, which can easily lead to jamming or loosening, affecting the user experience. Summary of the Invention

[0004] The hinge structure and electronic equipment provided in this application can effectively reduce the amount of rubbing, reduce the occurrence of jamming or loosening during folding, and improve the user experience.

[0005] This application provides a hinge structure, wherein the hinge structure includes: The base, the swing arm, and the bracket are provided. The swing arm is rotatably connected to the base. One of the swing arm and the bracket is provided with a rack, and the other is provided with a gear. The gear and the rack are meshed together. During the rotation of the swing arm relative to the base, the gear rotates, the rack moves relative to the gear, and the swing arm moves relative to the bracket in a direction perpendicular to the rotation axis.

[0006] In the hinge structure described above, the rack is disposed on the rocker arm, and the gear is disposed on the bracket and rotatably connected to the bracket.

[0007] In the hinge structure described above, the swing arm has a first connecting portion and the bracket has a second connecting portion; along a first direction, at least a portion of the first connecting portion is stacked with the second connecting portion; The rack extends along the second direction, and during the rotation of the swing arm relative to the base, the rack drives the bracket to reciprocate along the second direction relative to the swing arm; The second direction is perpendicular to the rotation axis of the swing arm.

[0008] In the hinge structure described above, there are two racks, which are arranged opposite to each other on both sides of the first connecting portion; The second connecting part is provided with two gears, and the rack corresponds to each gear.

[0009] The hinge structure described above further includes a limiting component, which is connected to the second connecting portion, and a portion of the limiting component abuts against the side of the first connecting portion away from the second connecting portion along the second direction.

[0010] In the hinge structure described above, the limiting component includes a pressure plate and a connecting member. The pressure plate extends along the third direction and spans the first connecting portion. Both ends of the pressure plate along the third direction are respectively connected to the second connecting portion through the connecting member.

[0011] In the hinge structure described above, the second connecting part is provided with mounting seats on both sides of the first connecting part along the third direction, and the mounting seat is recessed with a limiting groove on the side away from the second connecting part. The pressure plate is embedded into the limiting groove of the two mounting seats at both ends along the third direction.

[0012] The hinge structure described above, wherein the connecting member comprises: A bolt, comprising a bolt head and a threaded rod, wherein the threaded rod passes through the pressure plate, the mounting base, and connects to the second connecting portion; An elastic buffer is disposed between the bolt head and the second connecting part in a compressed state. The elastic buffer abuts against the bolt head and the second connecting part respectively, and the elastic buffer can elastically deform along the first direction.

[0013] In the hinge structure described above, the mounting base includes a bearing portion and a support portion that are connected to each other. The support portion is connected to the second connecting portion. The bearing portion and the second connecting portion are spaced apart along the first direction. Along the third direction, the gear located on the same side of the mounting base as the first connecting portion is mounted between the bearing portion and the second connecting portion of the mounting base. The screw includes a first section and a second section. The bolt head is connected to the end of the first section away from the second section. The first section has a smooth circumferential surface, and the second section has a thread formed on its circumferential surface. The first section passes through the bearing portion, and the gear is rotatably fitted onto the first section. The second section is connected to the second connecting portion.

[0014] In the hinge structure described above, a through hole is provided on the mounting base along the first direction, and the bolt passes through the through hole and connects with the second connecting part; the through hole is a strip-shaped hole, and the size of the through hole along the third direction is larger than the size of the through hole along the second direction.

[0015] This application also provides an electronic device, wherein the electronic device includes the hinge structure described above.

[0016] The hinge structure and electronic device provided in this application, by setting a meshing rack and gear between the swing arm and the bracket, can effectively reduce the rubbing between the swing arm and the bracket during relative movement due to the zero clearance fit of the rack and gear. This reduces the amount of rubbing between the swing arm and the bracket, and reduces the possibility of jamming or loosening between the swing arm and the bracket during the rotation of the swing arm relative to the base, thereby improving the user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural diagram of the hinge structure provided in this application when it is in the unfolded state; Figure 2 A partial exploded view of the hinge structure provided in this application; Figure 3 A three-dimensional structural diagram of the hinge structure provided in this application when it is in a folded state; Figure 4 A schematic cross-sectional view of the hinge structure provided in this application along the first direction and the third direction at the two connecting members. Figure 5 A three-dimensional structural schematic diagram of the elastic buffer component of the hinge structure connection member provided in this application; Figure 6 A schematic diagram of the planar structure of the elastic buffer of the connecting member of the hinge structure provided in this application along the first direction.

[0019] Explanation of icon numbers: 1. Base; 2. Swing arm; 21. First connecting part; 3. Bracket; 31. Second connecting part; 311. Hollowed-out area; 32. Mounting seat; 321. Limiting groove; 322. Through hole; 323. Bearing part; 324. Support part; 41. Rack; 42. Gear; 5. Limiting assembly; 51. Pressure plate; 52. Connecting component; 521. Bolt; 5211. Bolt head; 5212. Screw; 52121. First section; 52122. Second section; 53. Elastic buffer; 54. Pressure equalizing component; 55. Nut; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0020] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that the terms "first direction X," "second direction Y," and "third direction Z" used in this application to indicate direction are only for the purpose of more clearly illustrating the specific structure of this application. The first direction X, second direction Y, and third direction Z are merely preset reference directions relative to the swing arm 2 and the support 3, and are independent of the swing angle between the swing arm 2 and the base 1. During the swing of the swing arm 2 relative to the base 1, the first direction X, second direction Y, and third direction Z swing synchronously with the swing arm 2. The first direction X, second direction Y, and third direction Z are mutually perpendicular. Specifically, the first direction X and second direction Y are both perpendicular to the rotation axis of the swing arm; the third direction Z is parallel to the rotation axis of the swing arm.

[0022] like Figures 1 to 4 As shown, this application provides a hinge structure, wherein the hinge structure includes a base 1, a swing arm 2, and a bracket 3.

[0023] The base 1 has two opposite sides, and each side of the base 1 is rotatably connected to a swing arm 2. Each swing arm 2 is connected to a bracket 3. Through the bracket 3, the two swing arms 2 are connected to two components to adjust the angle between the two components and realize the folding of the two components.

[0024] The hinge structure has a folded state and an unfolded state. In the unfolded state, the two swing arms 2 and the base 1 are laid flat to form a roughly flat structure. In the folded state, the two swing arms 2 form an angle with the base 1 and the two swing arms 2 are stacked. During the transition from the unfolded state to the folded state, the two swing arms 2 move toward each other. During the transition from the folded state to the unfolded state, the two swing arms 2 move toward each other.

[0025] One of the swing arm 2 and the bracket 3 is provided with a rack 41, and the other is provided with a gear 42, which meshes with the rack 41.

[0026] During the rotation of the swing arm 2 relative to the base 1, the gear 42 rotates, the rack 41 moves relative to the gear 42, and the swing arm 2 moves relative to the bracket 3 in a direction perpendicular to the rotation axis.

[0027] Optionally, rack 41 is mounted on rocker arm 2, and gear 42 is mounted on bracket 3 and rotatably connected to bracket 3.

[0028] Specifically, the swing arm 2 has a first connecting portion 21; the bracket 3 has a second connecting portion 31, and at least a portion of the first connecting portion 21 and the second connecting portion 31 are stacked together along the first direction X. The rack 41 extends along the second direction Y, and during the rotation of the swing arm 2 relative to the base 1, the rack 41 drives the bracket 3 to reciprocate relative to the swing arm 2 along the second direction Y.

[0029] The rack 41 includes a plurality of meshing teeth spaced apart along the second direction Y; wherein the rack 41 and the first connecting part 21 are integrally formed to ensure the connection strength between the two and the structural strength of the swing arm 2.

[0030] During the relative movement of the first connecting part 21 and the second connecting part 31 along the second direction Y, the rack 41 reciprocates along the second direction Y, and the gear 42 rotates. Since the assembly precision of the gear 42 and the rack 41 can achieve zero clearance fit, the relative position of the first connecting part 21 and the second connecting part 31 along the third direction Z can be effectively maintained, that is, the effect of zero clearance fit between the first connecting part 21 and the second connecting part 31 along the third direction Z is achieved. This effectively reduces the rubbing between the first connecting part 21 and the second connecting part 31 along the third direction Z during the relative movement of the first connecting part 21 and the second connecting part 31 along the second direction Y, reduces the amount of rubbing between the swing arm 2 and the bracket 3, and reduces the situation of jamming or loosening between the swing arm 2 and the bracket 3 when the swing arm 2 and the bracket 3 are relatively displaced along the second direction Y during the folding or unfolding of the swing arm 2 relative to the base 1, thus improving the user experience.

[0031] like Figures 1 to 4As shown, the hinge structure provided in this application includes two racks 41, which are arranged opposite each other on both sides of the first connecting part 21. The second connecting part 31 is provided with two gears 42, and the racks 41 and gears 42 correspond one-to-one.

[0032] Specifically, the first connecting part 21 is provided with racks 41 on both sides along the third direction Z, and the second connecting part 31 is provided with gears 42 on both sides of the first connecting part 21 along the third direction Z. The two gears 42 are meshed with the two racks 41 in a one-to-one correspondence.

[0033] By providing racks 41 and gears 42 on both sides of the first connecting part 21, uniform support and driving force can be provided to the first connecting part 21 on both sides along the third direction Z, so that the first connecting part 21 is subjected to uniform force on both sides along the third direction Z, ensuring that the first connecting part 21 and the second connecting part 31 move relatively smoothly and steadily along the second direction Y.

[0034] like Figure 2 and Figure 4 As shown, the hinge structure provided in this application includes a hollow area 311 on the second connecting portion 31. Along the first direction X, the projection of the first connecting portion 21 at least partially coincides with the projection of the hollow area 311. By providing the hollow area 311, the contact area between the first connecting portion 21 and the second connecting portion 31 can be reduced, thereby reducing the frictional force experienced by the two during relative movement along the second direction Y. This further improves the smoothness of relative movement between the first connecting portion 21 and the second connecting portion 31 along the second direction Y, while also slowing down the wear and aging of the first connecting portion 21 and the second connecting portion 31, ensuring the service life of the hinge structure.

[0035] Optionally, the projection of the first connecting part 21 falls entirely into the projection of the hollow area 311, and the first connecting part 21 abuts against the second connecting part 31 through the two sides of the toothed rack 41 in the third direction Z, so as to minimize the contact area between the first connecting part 21 and the second connecting part 31.

[0036] like Figure 1 , Figure 2 and Figure 4As shown, the hinge structure provided in this application further includes a limiting component 5, which is connected to the second connecting portion 31. A portion of the limiting component 5 abuts against the side of the first connecting portion 21 opposite to the second connecting portion 31 along the first direction X. By cooperating with the second connecting portion 31, the limiting component 5 positions the first connecting portion 21 along the first direction X, achieving a zero-gap fit between the first connecting portion 21 and the second connecting portion 31 along the first direction X. This effectively reduces the rubbing between the first connecting portion 21 and the second connecting portion 31 along the first direction X during relative movement along the second direction Y, further reducing the amount of rubbing between the swing arm 2 and the bracket 3. This also reduces the possibility of jamming or loosening between the swing arm 2 and the bracket 3 when they undergo relative displacement along the second direction Y during the folding or unfolding of the swing arm 2 relative to the base 1, thereby further improving the user experience.

[0037] like Figure 1 , Figure 2 and Figure 4 As shown, the hinge structure provided in this application includes a limiting component 5 comprising a pressure plate 51 and a connecting member 52. The pressure plate 51 extends along a third direction Z and spans across the first connecting portion 21. The pressure plate 51 presses against the side of the first connecting portion 21 away from the second connecting portion 31 along the third direction Z, and both ends of the pressure plate 51 along the third direction Z are respectively connected to the second connecting portion 31 via the connecting member 52. During assembly, the connecting member 52 can be adjusted according to the actual situation to adjust the abutting force of the pressure plate 51 against the first connecting portion 21.

[0038] like Figures 1 to 4 As shown, the hinge structure provided in this application includes mounting seats 32 on both sides of the first connecting portion 21 along the third direction Z. Each mounting seat 32 has a limiting groove 321 recessed on its side opposite to the second connecting portion 31. The two ends of the pressure plate 51 along the third direction Z are respectively embedded into the limiting grooves 321 of the two mounting seats 32. By setting the limiting grooves 321, the position of the pressure plate 51 can be limited, thereby ensuring effective contact between the pressure plate 51 and the first connecting portion 21. This prevents the pressure plate 51 from shifting under external force and failing to effectively press against the first connecting portion 21, thus preventing the limiting of the pressure plate against the first connecting portion 21 along the first direction X from failing.

[0039] like Figure 2 and Figure 4 As shown, the hinge structure provided in this application includes a connecting member 52 comprising a bolt 521 and an elastic buffer member 53. The bolt 521 enables a detachable connection between the pressure plate 51 and the second connecting part 31, and the elastic buffer member 53 provides space for elastic buffering of the pressure plate 51 pressing against the first connecting part 21.

[0040] Bolt 521 includes bolt head 5211 and screw 5212. Bolt head 5211 is used to limit screw 5212. Screw 5212 passes through pressure plate 51, mounting base 32 and second connecting part 31 and can be detachably connected.

[0041] Optionally, the second connecting part 31 may be provided with a threaded hole, and the screw 5212 may be directly screwed into the threaded hole of the second connecting part 31; or the screw 5212 may pass through the second connecting part 31 and be screwed into a nut 55.

[0042] The elastic buffer 53 is disposed in a compressed state between the bolt head 5211 and the second connecting part 31. The elastic buffer 53 abuts against the bolt head 5211 and the second connecting part 31 respectively, and the elastic buffer 53 can elastically deform along the first direction X.

[0043] When the elastic buffer 53 is compressed, it generates an elastic restoring force that returns it to its original shape, thereby applying a pushing force to the pressure plate 51 and the second connecting portion 31 respectively, providing elastic support for the pressure plate 51. At the same time, the elastic buffer 53 can effectively abut and limit the pressure plate 51 against the first connecting portion 21 while partially offsetting the force exerted by the pressure plate 51 on the first connecting portion 21, preventing the pressure plate 51 from rigidly abutting against the first connecting portion 21 and causing wear on the first connecting portion 21.

[0044] Optionally, such as Figure 5 and Figure 6 As shown, the elastic buffer 53 is an annular corrugated spring, which is sleeved on the screw 5212. The elastic buffer 53 has multiple protrusions and recesses alternately arranged along its circumference. When subjected to a force along the first direction X, the protrusions and recesses can produce elastic deformation to offset the pressure on the first connecting part 21.

[0045] like Figure 2 and Figure 4 As shown, the hinge structure provided in this application includes a pressure equalizing member 54 in the connecting member 52, disposed between the elastic buffer member 53 and the second connecting portion 31. The elastic buffer member 53 abuts against the pressure equalizing member 54, and the pressure equalizing member 54 abuts against the second connecting portion 31. By providing the pressure equalizing member 54, the force applied by the elastic buffer member 53 to the second connecting portion 31 can be uniformly distributed, so that the force at the position where the second connecting portion 31 abuts against the pressure equalizing member 54 is uniform.

[0046] Optionally, the equalizing member 54 is a flat washer, which is sleeved on the screw 5212 and located between the elastic buffer member 53 and the second connecting part 31. The elastic buffer member 53 abuts against the flat washer through multiple recessed parts. The force generated by the X-shaped deformation of the elastic buffer member 53 along the first direction is applied to one side surface of the flat washer through each recessed part. The other side surface of the flat washer is in contact with the second connecting part 31, and a force is uniformly applied to the second connecting part 31 in the area where the two are in contact.

[0047] like Figure 2 As shown, the hinge structure provided in this application includes a mounting base 32 comprising a bearing portion 323 and a support portion 324 connected together. The support portion 324 is connected to the second connecting portion 31, and the bearing portion 323 and the second connecting portion 31 are spaced apart along the first direction X.

[0048] Optionally, the bearing portion 323 is generally plate-shaped, and two support portions 324 are provided. The two support portions 324 are respectively located on both sides of the bearing portion 323 along the second direction Y, so as to provide uniform support for the bearing portion 323.

[0049] Along the third direction Z, the gear 42, which is located on the same side of the first connecting part 21 as the mounting base 32, is installed between the bearing part 323 and the second connecting part 31 of the mounting base 32; in order to improve the integration between the components, increase the space utilization, and thus improve the integration of the hinge structure.

[0050] The screw 5212 includes a first section 52121 and a second section 52122. The bolt head 5211 is connected to the end of the first section 52121 away from the second section 52122. The first section 52121 has a smooth circumferential surface and passes through the bearing portion 323. The gear 42 is rotatably fitted onto the first section 52121, so that the first section 52121 has a smooth outer circumferential surface, which can effectively reduce the friction between the gear 42 and the first section 52121 when they rotate relative to each other. The second section 52122 has threads formed on its circumferential surface to enable the second section 52122 to be detachably connected to the second connecting portion 31.

[0051] like Figure 2 As shown, the hinge structure provided in this application includes a through hole 322 on the mounting base 32 along the first direction X. A bolt 521 passes through the through hole 322 and connects to the second connecting part 31. The through hole 322 is a strip-shaped hole, and the dimension of the through hole 322 along the third direction Z is larger than the dimension of the through hole 322 along the second direction Y. By setting the strip-shaped hole, during the assembly process, the position of the screw 5212 along the third direction Z in the through hole 322 can be adjusted to adjust the fit clearance between the gear 42 and the rack 41, thereby achieving a zero-clearance fit between the gear 42 and the rack 41.

[0052] The embodiments of the present application further provide an electronic device, wherein the electronic device includes the hinge structure as described above.

[0053] In the electronic device provided by the present application, a rack and a gear meshing with each other are arranged between the swing arm and the bracket of the hinge structure. Since the precision of the rack and the gear can reach zero clearance fit, it can effectively reduce the rubbing generated between the swing arm and the bracket during the relative movement between them, thereby reducing the rubbing amount between the swing arm and the bracket, and reducing the situation of jamming or loosening between the swing arm and the bracket during the rotation of the swing arm relative to the base, improving the user experience.

[0054] The features of the terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means that the related objects before and after are in an "or" relationship.

[0055] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "middle", "rear", "left", "right", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0056] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0057] As mentioned above, the above is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application.

Claims

1. A hinge structure, characterized in that, The hinge structure includes: The base, the swing arm, and the bracket are provided. The swing arm is rotatably connected to the base. One of the swing arm and the bracket is provided with a rack, and the other is provided with a gear. The gear and the rack are meshed together. During the rotation of the swing arm relative to the base, the gear rotates, the rack moves relative to the gear, and the swing arm moves relative to the bracket in a direction perpendicular to the rotation axis. The swing arm has a first connecting portion, and the bracket has a second connecting portion; along a first direction, at least a portion of the first connecting portion is stacked with the second connecting portion. The hinge structure further includes a limiting component, which is connected to the second connecting portion, and a portion of the limiting component abuts against the side of the first connecting portion away from the second connecting portion along the first direction; So that the first connecting part and the second connecting part form a zero-clearance fit along the first direction; The first direction is perpendicular to the rotation axis of the swing arm.

2. The hinge structure according to claim 1, characterized in that, The rack is mounted on the rocker arm, and the gear is mounted on the bracket and rotatably connected to the bracket.

3. The hinge structure according to claim 1, characterized in that, The rack extends along the second direction, and during the rotation of the swing arm relative to the base, the rack drives the bracket to reciprocate along the second direction relative to the swing arm; The second direction is perpendicular to the rotation axis of the swing arm, and the first direction is perpendicular to the second direction.

4. The hinge structure according to claim 3, characterized in that, There are two racks, which are arranged opposite to each other on both sides of the first connecting part; The second connecting part is provided with two gears, and the rack corresponds to each gear.

5. The hinge structure according to claim 3, characterized in that, The limiting component includes a pressure plate and a connecting member. The pressure plate extends along a third direction and spans across the first connecting portion. Both ends of the pressure plate along the third direction are respectively connected to the second connecting portion through the connecting member. The third direction is parallel to the rotation axis of the swing arm.

6. The hinge structure according to claim 5, characterized in that, The second connecting part is provided with mounting seats on both sides of the first connecting part along the third direction. The mounting seat is recessed with a limiting groove on the side away from the second connecting part. The pressure plate is embedded into the limiting groove of the two mounting seats at both ends along the third direction.

7. The hinge structure according to claim 6, characterized in that, The connecting component includes: A bolt, comprising a bolt head and a threaded rod, wherein the threaded rod passes through the pressure plate, the mounting base, and connects to the second connecting portion; An elastic buffer is disposed between the bolt head and the second connecting part in a compressed state. The elastic buffer abuts against the bolt head and the second connecting part respectively, and the elastic buffer can elastically deform along the first direction.

8. The hinge structure according to claim 7, characterized in that, The mounting base includes a bearing portion and a support portion that are connected to each other. The support portion is connected to the second connecting portion. The bearing portion and the second connecting portion are spaced apart along the first direction. Along the third direction, the gear located on the same side of the mounting base as the first connecting portion is mounted between the bearing portion and the second connecting portion of the mounting base. The screw includes a first section and a second section. The bolt head is connected to the end of the first section away from the second section. The first section has a smooth circumferential surface, and the second section has a thread formed on its circumferential surface. The first section passes through the bearing portion, and the gear is rotatably fitted onto the first section. The second section is connected to the second connecting portion.

9. The hinge structure according to claim 7 or 8, characterized in that, The mounting base has a through hole along the first direction, and the bolt passes through the through hole and connects with the second connecting part; the through hole is a strip-shaped hole, and the size of the through hole along the third direction is larger than the size of the through hole along the second direction.

10. An electronic device, characterized in that, The electronic device includes the hinge structure as described in any one of claims 1 to 9.

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