Hinge mechanism and electronic device

Abstract

The present application discloses a hinge mechanism and an electronic device, which belongs to the field of communication equipment. The hinge mechanism comprises a mounting seat, a swing arm, a rotating shaft, a clamping assembly and a supporting member. The clamping assembly comprises a rotating seat, a matching portion, a first elastic reset member and a limiting member. The limiting member is arranged on the outer side of the rotating shaft, the rotating seat is rotatably arranged on the outer side of the limiting member, the matching portion is fixedly arranged on the rotating seat, and the first elastic reset member is elastically connected between the rotating seat and the mounting seat; a part of the limiting member is connected to the mounting seat, and the other part of the limiting member is movable relative to the mounting seat and the rotating seat; the swing arm is sleeved on the rotating shaft, the rotating shaft is rotatably connected to the mounting seat, the swing arm is provided with an extruding portion, one end of the supporting member abuts against the extruding portion, and the other end of the supporting member abuts against the matching portion; when the rotating shaft and the swing arm rotate synchronously, the extruding portion squeezes the supporting member to push the matching portion to drive the rotating seat to rotate and pre-tighten the first elastic reset member, and the rotating seat drives the limiting member to press the rotating shaft to limit the rotation of the rotating shaft.

Description

Technical Field

[0001] The present application belongs to the technical field of communication equipment, and specifically relates to a hinge mechanism and an electronic device. Background Art

[0002] With the development of technology, deformable display products have gradually matured, and electronic devices such as folding screen mobile phones have flourished. In order to enable folding screen electronic devices to have the ability to hover in a "semi-expanded" state, current folding screen mobile phones usually have springs built into the hinge mechanism to provide torque for the rotating parts, so that the parts used to support the display screen in the folding screen electronic device can be maintained at a specific angle such as 120°, thereby allowing the display screen to hover in a "semi-expanded" state. However, in the above technical solution, it is necessary to arrange the spring axially along the direction of rotation, which results in a relatively large space occupied by the spring, which will have a greater adverse effect on the space utilization efficiency in the electronic device. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a hinge mechanism and an electronic device to solve the problem that the springs provided in the current foldable electronic device to achieve the purpose of hovering need to be arranged along the rotation axis, which will have an adverse effect on the space utilization efficiency of the electronic device.

[0004] In a first aspect, an embodiment of the present application discloses a hinge mechanism, which includes a mounting seat, a swing arm, a rotating shaft, a clamping assembly and a top holding member.

[0005] The clamping assembly comprises a rotating seat, a matching portion, a first elastic reset member and a limiting member, wherein the limiting member is arranged on the outer side of the rotating shaft, the rotating seat is rotatably arranged on the outer side of the limiting member, the matching portion is fixedly arranged on the rotating seat, and the first elastic reset member is elastically connected between the rotating seat and the mounting seat; a part of the limiting member is connected to the mounting seat, and another part of the limiting member is movable relative to the mounting seat and the rotating seat;

[0006] The swing arm is sleeved on the rotating shaft, the rotating shaft is rotatably connected to the mounting seat, the swing arm is provided with a pressing portion, one end of the supporting member abuts against the pressing portion, and the other end of the supporting member abuts against the matching portion;

[0007] When the rotating shaft and the swing arm rotate synchronously, the extrusion part squeezes the supporting member to push the matching part to drive the rotating seat to rotate and pre-tighten the first elastic reset member, and the rotating seat drives the limiting member to press the rotating shaft to limit the rotation of the rotating shaft.

[0008] In a second aspect, an embodiment of the present application discloses an electronic device, which includes a plurality of screen support parts and the above-mentioned hinge mechanism, and any two adjacent screen support parts are connected to the swing arm in the hinge mechanism.

[0009] The embodiment of the present application discloses a hinge mechanism, which can be used in an electronic device so that two adjacent screen support parts in the electronic device have the ability to rotate relative to each other, thereby enabling the electronic device to switch between a folded state and an unfolded state. In the hinge mechanism, a pressing part is provided on the side of the swing arm facing the mounting seat, and the pressing part is used to abut against one end of the top holding member, so that during the rotation of the swing arm relative to the mounting seat, the top holding member can be driven by the pressing part to make a linear motion along the rotation axis of the swing arm. At the same time, the other end of the top holding member abuts against the matching part on the rotating seat, so that when the top holding member moves in a direction away from the swing arm along the rotation axis, the matching part can be used to squeeze the rotating seat relative to the mounting seat to make a rotational motion in a direction around the rotation axis; and during the rotation of the rotating seat, the first elastic reset member can be pre-tightened so that the first elastic reset member stores elastic potential energy, and the rotating seat can also drive the limiting member to move, so that the limiting member, one part of which is connected to the mounting seat and the other part of which is movable relative to the mounting seat and the rotating seat, can hold the rotating shaft tightly to limit the rotation of the rotating shaft.

[0010] Based on the above technical solution, during the operation of the hinge mechanism, when the supporting member cooperates with the end point (or end face) of the extrusion portion closest to the mounting seat, a relatively stable cooperation relationship can be formed between the supporting member and the extrusion portion, so that all components of the hinge mechanism can remain relatively still, and the angle between two adjacent swing arms in the direction perpendicular to the aforementioned rotation axis in the hinge mechanism can be positioned at certain specific angles, so that the hinge mechanism has the ability to hover, so that the display screen of the electronic device formed by using the hinge mechanism can present a specific expansion angle.

[0011] At the same time, in the above-mentioned hinge mechanism, since the action direction of the first elastic return member is in the direction around the rotation axis, the first elastic return member can be arranged in the direction around the rotation axis, which makes the space occupied by the first elastic member in the direction of the rotation axis relatively small, which is only the width (or diameter) of the first elastic return member; and the limit member is located between the rotating shaft and the rotating seat, which makes the limit member not occupy additional space in the direction of the rotating shaft. Therefore, the hinge mechanism disclosed in the embodiment of the present application can improve the space utilization efficiency of electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 is a structural schematic diagram of the hinge mechanism disclosed in the embodiment of the present application;

[0014] Figure 2 is a schematic structural diagram of the hinge mechanism disclosed in an embodiment of the present application in another direction;

[0015] Figure 3 is an exploded schematic diagram of the hinge mechanism disclosed in the embodiment of the present application;

[0016] Figure 4 is a schematic diagram of a partial structure of a hinge mechanism disclosed in an embodiment of the present application;

[0017] Figure 5 It is a schematic diagram of the assembly of the top holding member and the mounting seat in the hinge mechanism disclosed in the embodiment of the present application;

[0018] Figure 6 is an exploded schematic diagram of a top holding member in a hinge mechanism disclosed in an embodiment of the present application;

[0019] Figure 7 It is a schematic diagram of the cooperation between the top holding member and the extrusion part in the hinge mechanism disclosed in the embodiment of the present application;

[0020] Figure 8 It is a schematic diagram of the assembly of the top holding member and the matching part in the hinge mechanism disclosed in the embodiment of the present application;

[0021] Fig. 9 It is an exploded schematic diagram of a part of the structure of the clamping assembly in the hinge mechanism disclosed in the embodiment of the present application;

[0022] Fig.10 is a schematic diagram of a partial structure of a clamping assembly in a hinge mechanism disclosed in an embodiment of the present application;

[0023] Fig.11 It is a schematic diagram of the assembly of the friction block and the connecting member in the clamping assembly in the hinge mechanism disclosed in the embodiment of the present application;

[0024] Fig.12 It is a schematic diagram of the working principle of the clamping component in the hinge mechanism disclosed in the embodiment of the present application.

[0025] Description of reference numerals:

[0026] 110-mounting seat, 111-accommodating groove, 112-connecting groove, 120-bridge seat,

[0027] 210-swing arm, 220-extrusion part, 221-driving inclined surface,

[0028] 300-shaft,

[0029] 400-holding assembly, 410-rotating seat, 411-limiting groove, 421-matching part, 422-roller, 430-first elastic reset member, 440-friction block, 450-connecting member, 460-pin shaft, 470-limiting shaft,

[0030] 500-supporting member, 510-elevator, 520-driving protrusion, 521-driving surface, 530-connecting portion, 540-second elastic reset member,

[0031] 900-base. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] The electronic device provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0035] like Figures 1 to 12 As shown, an embodiment of the present application discloses a hinge mechanism and an electronic device. The hinge mechanism can be applied in the electronic device to enable the electronic device to have the ability to fold and unfold, thereby enabling the electronic device to have both a larger display area and better portability, and providing a better user experience.

[0036] As mentioned above, the hinge mechanism is used to enable the electronic device to have the ability to fold. For this purpose, the folding mechanism can be connected between two adjacent screen support parts in the electronic device. The screen support part is used to support (a part of) the display screen. The two adjacent screen support parts are connected to each other through the hinge mechanism, which can ensure that the two screen support parts have the ability to rotate relative to each other. Of course, the electronic device disclosed in the embodiment of the present application may include two or more screen support parts, and any two adjacent screen support parts can be connected by a hinge mechanism, ensuring that any two adjacent screen support parts can rotate relative to each other under the action of the hinge mechanism.

[0037] For ease of introduction, the following takes an electronic device including two screen support parts and a hinge mechanism as an example. In the aforementioned electronic device, the display screen supported by the screen support part may include two hard display screens and one flexible screen. The two hard display screens are supported on the two screen support parts respectively, and the two are interconnected by the flexible screen to jointly display the content required to be displayed by the electronic device. In another embodiment of the present application, in order to improve the consistency of the display screen and improve the display effect of the electronic device, the display screen of the electronic device can be a whole flexible display screen, and a part of the flexible display screen is supported on one screen support part, and the other part of the flexible display screen is supported on another screen support part. Under the action of the hinge mechanism, different parts of the flexible display screen have the ability to move relative to each other.

[0038] like Figure 1-Figure 3 As shown, the hinge mechanism disclosed in the embodiment of the present application includes a mounting seat 110, a swing arm 210, a rotating shaft 300, a clamping assembly 400 and a top holding member 500. The swing arm 210 is used to connect with the screen support portion of the electronic device so as to drive the swing arm 210 to rotate together when the screen support portion rotates. The swing arm 210 is sleeved on the rotating shaft 300, and the swing arm 210 and the rotating shaft 300 that cooperate with each other rotate synchronously, and then during the process of one of the swing arm 210 and the rotating shaft 300 rotating, the other of the swing arm 210 and the rotating shaft 300 can be driven to rotate together. Furthermore, under the driving action of the extrusion portion 220 on the swing arm 210, the supporting member 500 can be made to move axially along the rotating shaft 300. Under the action of the supporting member 500, the rotating seat 410 in the clamping assembly 400 can be driven to rotate circumferentially along the rotating shaft 300, and the first elastic reset member 430 can be compressed (or stretched). When the end point (or end face, the end point is the position closest to the mounting seat 110 in the extrusion portion 220 of the swing arm 210) close to the mounting seat 110 cooperates with the supporting member 500, the elastic potential energy of the first elastic reset member 430 reaches a maximum.

[0039] In addition, in order to ensure that a relatively stable matching relationship can be formed between the end point of the extrusion portion 220 and the supporting member 500, a positioning recess or the like can be provided at the end point (or end face) of the extrusion portion 220, or a positioning recess or the like can be provided at one end of the supporting member 500 facing the extrusion portion 220, so that when the supporting member 500 moves to the end point of the extrusion portion 220, it can be maintained in the aforementioned state without being affected by external force; accordingly, when the hinge mechanism is subjected to external force, the aforementioned state can be broken, so that the supporting member 500 passes over the end point of the extrusion portion 220, and then under the action of the first elastic reset member 430, the rotating disk in the hinge mechanism is rotated in the opposite direction to reset, and the swing arm 210 can drive the rotating shaft 300 to continue to rotate relative to the mounting seat 110.

[0040] In addition, by increasing the magnitude of the friction force between the end point of the extrusion portion 220 close to the mounting seat 110 and the supporting member 500, the supporting member 500 can be restricted from continuing to move when it moves along the extrusion portion 220 to the aforementioned end point of the extrusion portion 220, and the friction force can be used to overcome the elastic force of the first elastic return member 430 caused by being squeezed (or stretched).

[0041] In detail, the clamping assembly 400 includes a rotating seat 410, a matching portion 421, a first elastic reset member 430 and a limit member. The rotating seat 410 can be formed of a hard material. The rotating seat 410 can be a block-shaped structure such as a cube, and the rotating seat 410 can be arranged on one side of the rotating shaft 300, or the rotating seat 410 can also be an annular structure. In this case, the rotating seat 410 can be sleeved outside the rotating shaft 300, and the rotating seat 410 and the mounting seat 110 can rotate and cooperate in the circumferential direction of the rotating shaft 300 to ensure that the rotating seat 410 can be driven to pre-tighten the first elastic reset member 430, and enable the limit member to press the rotating shaft 300 to limit the rotation of the rotating shaft 300.

[0042] The matching portion 421 is fixed to the rotating seat 410. Specifically, the matching portion 421 is used to match with the above-mentioned supporting member 500, so that when the supporting member 500 moves along the axial direction of the rotating shaft 300, the rotating seat 410 is driven to rotate relative to the mounting seat 110 through the matching portion 421. The matching portion 421 can be a columnar protrusion to contact and match with the supporting member 500. The rotating seat 410 and the mounting seat 110 can form a rotational matching relationship by additionally setting a central axis, or by making the mounting seat 110 and the rotating seat 410 both sleeved outside the rotating shaft 300, and using a limiting structure to enable the mounting seat 110 and the rotating seat 410 to rotate relative to each other.

[0043] The first elastic reset member 430 may be formed of an elastic material to ensure that the first elastic reset member 430 has elasticity, and is compressed when subjected to an external force, and can restore its own deformation when the external force is removed to produce a reset effect. In another embodiment of the present application, the first elastic reset member 430 may be a spring to ensure that the first elastic reset member 430 has a relatively large elastic deformation and elastic potential energy, thereby improving the elastic reset ability of the first elastic reset member 430.

[0044] Furthermore, the first elastic reset member 430 is elastically connected between the rotating seat 410 and the mounting seat 110. Specifically, when the rotating seat 410 is a block-shaped structural member, a baffle can be provided on the mounting seat 110, and the first elastic reset member 430 is provided between the baffle and the rotating seat 410. When the baffle is located downstream of the rotating seat 410 in the rotation direction, the first elastic reset member 430 can be abutted between the baffle and the rotating seat, so that when the rotating seat 410 rotates relative to the mounting seat 110, the first elastic reset member 430 can be squeezed; when the baffle is located upstream of the rotating seat 410 in the rotation direction, the opposite ends of the first elastic reset member 430 can be fixedly connected to the baffle and the rotating seat 410 respectively, so that when the rotating seat 410 rotates relative to the mounting seat 110, the first elastic reset member 430 can be stretched. Of course, a groove can also be provided on the side of the rotating seat 410 facing the mounting seat 110, and the aforementioned baffle and the first elastic reset member 430 can be provided in the aforementioned groove, which can also ensure that the first elastic reset member 430 can be elastically connected between the rotating seat 410 and the mounting seat 110. In the case where the rotating seat 410 is an annular structure, the first elastic reset member 430 and the pin 460 can be provided in the limiting groove 411 together, and the specific assembly method of the first elastic reset member 430 is determined according to the specific setting position of the first elastic reset member 430, which will not be repeated here for the sake of brevity.

[0045] In the case where the first elastic reset member 430 is elastically arranged between the rotating seat 410 and the mounting seat 110, the first elastic reset member 430 can be used to limit the relative rotation of the rotating seat 410 and the mounting seat 110 in the circumferential direction of the rotating shaft 300. Of course, under the action of external force, the rotating seat 410 and the mounting seat 110 can also rotate relative to each other, and the first elastic reset member 430 is pre-tightened, that is, the first elastic reset member 430 is stretched or compressed to store elastic potential energy. Moreover, after the external force is removed, the first elastic reset member 430 can restore the deformation under the action of its own elastic potential energy, and drive the rotating seat 410 and the mounting seat 110 to reset.

[0046] The stopper is disposed on the outside of the rotating shaft 300, and the rotating seat 410 is rotatably disposed on the outside of the stopper, that is, the stopper is located between the rotating shaft 300 and the rotating seat 410, and the rotating seat 410 is used to provide a driving effect for the movement of the stopper. During the installation of the stopper, a part of the stopper is connected to the mounting seat 110, and another part of the stopper is movable relative to the mounting seat 110 and the rotating seat 410, so that the stopper provides a clamping effect for the rotating shaft 300.

[0047] Optionally, the stopper is specifically a separate component, for example, it can be a block-shaped structural component, and the stopper has a certain deformation ability. In this case, the opposite ends of the stopper can be connected to the inner side of the rotating seat 410 and the mounting seat 110 respectively, so that when the rotating shaft 300 rotates and the rotating seat 410 is driven to rotate relative to the mounting seat 110 by the supporting member 500, the rotating seat 410 can deform the stopper and squeeze the rotating shaft 300 by squeezing the stopper, thereby enhancing the function of limiting the continued rotation of the rotating shaft 300. Of course, in other embodiments of the present application, the stopper can also be a combined structure, that is, the stopper can include multiple parts, all of which are located between the rotating seat 410 and the rotating shaft 300, and a part of the stopper can be connected to the rotating seat 410, and another part of the stopper can be connected to the mounting seat 110.

[0048] During the process of assembling the hinge mechanism, the mounting seat 110 is arranged between the swing arm 210 and the rotating seat 410 along the axial direction of the rotating shaft 300, thereby ensuring that the mounting seat 110 can provide a mounting function for the top holding member 500 used to cooperate with both the swing arm 210 and the rotating seat 410. Specifically, the mounting seat 110 can be formed of a hard material such as metal or plastic, and the actual shape of the mounting seat 110 can be determined according to the hinge mechanism and / or the remaining space in the electronic device, and is not limited here. In the hinge mechanism disclosed in the embodiment of the present application, the mounting seat 110 can actually be regarded as a reference system, that is, the mounting seat 110 can be regarded as a relatively stationary component in the hinge mechanism, and other components in the hinge mechanism such as the swing arm 210, the rotating shaft 300, the clamping assembly 400 and the top holding member 500 can rotate or move relative to the mounting seat 110.

[0049] In order to ensure that the mounting seat 110 can be used as a reference system for other components in the hinge mechanism, the mounting seat 110 can be directly or indirectly connected to the two adjacent rotating shafts 300, such as the two rotating shafts 300 can be respectively installed on the two mounting seats 110, and the two rotating shafts 300 can be rotated relative to the corresponding mounting seats 110. By fixing the two mounting seats 110, the mounting seat 110 can be used to ensure that the distance between the two rotating shafts 300 remains unchanged. At the same time, since the swing arm 210 and the clamping assembly 400 are both sleeved on the rotating shaft 300, the mounting seat 110 can also provide a positioning function for the swing arm 210 and the clamping assembly 400. Correspondingly, by installing the top holding member 500 on the mounting seat 110, the movement range of the top holding member 500 can also be limited by the mounting seat 110, ensuring that the aforementioned components are connected as a whole to form an integral structural member. Alternatively, the hinge mechanism may further include a base 900, which is sleeved between two adjacent rotating shafts 300. In this case, the mounting base 110 and the base 900 can form a fixed connection relationship, which can also ensure that the mounting base 110 can be used as a reference system for other components in the hinge mechanism.

[0050] The swing arm 210 is a component of the hinge mechanism that is directly connected to the screen support of the electronic device, and when two adjacent screen supports rotate relative to each other, the two swing arms 210 correspondingly connected to the two screen supports can be driven to rotate relative to each other. As described above, the mounting seat 110 can be used as a reference system for other components in the hinge mechanism. To this end, the swing arm 210 can be sleeved on the rotating shaft 300 to ensure that the swing arm 210 and the mounting seat 110 can rotate in cooperation in the circumferential direction of the rotating shaft 300.

[0051] At the same time, the swing arm 210 and the rotating shaft 300 are relatively fixed in the circumferential direction of the rotating shaft 300, so that the rotating shaft 300 can be driven to rotate synchronously during the rotation of the swing arm 210. Specifically, the swing arm 210 and the rotating shaft 300 can be formed in an integral manner to ensure that the two can rotate synchronously; or, the swing arm 210 and the rotating shaft 300 can be relatively fixed in the circumferential direction of the rotating shaft 300 by a key connection.

[0052] In addition, when the swing arm 210 rotates relative to the mounting seat 110, in order to ensure that the swing arm 210 can drive the rotating seat 410 to rotate through the supporting member 500, it is necessary to respectively provide the swing arm 210 and the rotating seat 410 with mechanisms that cooperate with the supporting member 500. For the swing arm 210, it can be specifically the above-mentioned extrusion part 220. The swing arm 210 is provided with the extrusion part 220, and the extrusion part 220 is provided with a driving inclined surface 221. The driving inclined surface 221 can be specifically an inclined plane or an inclined arc surface, and the starting end and the tail end of the driving inclined surface 221 are at different distances from the mounting seat 110 in the axial direction of the rotating shaft 300. That is, when the supporting member 500 cooperates with different positions on the driving inclined surface 221, the relative position of the supporting member 500 relative to the mounting seat 110 in the axial direction of the rotating shaft 300 changes, and then when the swing arm 210 rotates relative to the mounting seat 110, the driving inclined surface 221 can be used to drive the supporting member 500 to move relative to the mounting seat 110 along the axial direction of the rotating shaft 300.

[0053] For the rotating seat 410, the rotating seat 410 is provided with a matching portion 421, and the matching portion 421 is used to make the rotating seat 410 match with the supporting member 500. Specifically, the supporting member 500 is movably installed on the mounting seat 110 along the axial direction of the rotating shaft 300, and the supporting member 500 can be provided with a driving surface 521, so that the supporting member 500 uses the driving surface 521 to match with the matching portion 421. Similarly, the driving surface 521 is also an inclined surface, and the inclined surface is inclined relative to the axial direction of the rotating shaft 300, so as to ensure that the supporting member 500 can match with the matching portion 421 through the driving surface 521 during the axial movement of the supporting member 500 relative to the mounting seat 110 along the rotating shaft 300, and drive the rotating seat 410 to rotate.

[0054] Based on the above content, one end of the top holding member 500 can be abutted against the extrusion portion 220, and the other end of the top holding member 500 can be abutted against the matching portion 421, and then when the rotating shaft 300 and the swing arm 210 rotate synchronously, the extrusion portion 220 can extrude the top holding member 500, and under the condition that the top holding member 500 acts as an intermediate medium, it can push the matching portion 421 to drive the rotating seat 410 to rotate, pre-tighten the first elastic reset member 430, and enable the first elastic reset member 430 to store elastic potential energy. At the same time, when the rotating seat 410 rotates, the rotating seat 410 can drive the limiting member to press the rotating shaft 300 to limit the rotation of the rotating shaft 300.

[0055] In addition, in order to ensure that the electronic device using the above-mentioned hinge mechanism can be continuously flipped during the folding or unfolding process, the driving inclined surface 221 of the extrusion part 220 can be made into a reciprocating structure, that is, the extrusion part 220 is protruded relative to the swing arm 210, and the end point of the extrusion part 220 closest to the mounting seat 110 is used as the boundary. The surface of the extrusion part 220 located on the end point side of the extrusion part 220 is the aforementioned driving inclined surface 221, and the surface located on the other side of the end point of the extrusion part 220 is the reset surface. After the supporting part passes the aforementioned end point, the supporting part can be squeezed on the reset surface under the action of the first elastic reset member 430, and the limit member gradually loosens the rotating shaft 300, thereby ensuring that the electronic device can be switched to the folded state (or switched to the flattened state).

[0056] As described above, a positioning recess extending in a direction away from the mounting seat 110 can be provided at the end of the extrusion portion 220, so that one end of the supporting member 500 can be inserted into the positioning recess of the extrusion portion 220 to achieve the purpose of positioning the supporting member 500. Alternatively, a positioning recess can be provided at the other end of the supporting member 500, so that after the supporting member 500 drives the matching portion 421 to move to the corresponding position, the matching portion 421 can be inserted into the positioning recess of the supporting member 500 to achieve the purpose of positioning the supporting member 500. For another example, the friction force between the end point of the extrusion portion 220 and the supporting member 500 can be increased to ensure that when the swing arm 210 drives the rotating seat 410 to rotate through the supporting member 500 and squeezes the first elastic reset member 430, the first elastic reset member 430 can be stably in the squeezed state, and then under the joint action of the first elastic reset member 430 and the limit member, the rotating seat 410 is restricted from continuing to rotate, and the automatic reset of the rotating seat 410 can be restricted (that is, the rotating seat 410 automatically rotates in the opposite direction to reset), so that the angle between the two swing arms 210 in the hinge mechanism can be maintained at a specific value, so that the electronic device formed by the hinge mechanism has a hovering function, so that the display screen of the electronic device can be maintained in a "semi-expanded" state other than the non-expanded state and the non-folded state.

[0057] When it is necessary to rotate the rotating seat 410 in the opposite direction and reset it, the force can be continued to be applied to the swing arm 210 so that the top holding member 500 can be moved out of the positioning recess on the extrusion portion 220, and / or the matching portion 421 can be moved out of the positioning recess of the top holding member 500, and / or the friction between the top holding member 500 and the extrusion portion 220 can be overcome, so that the top holding member 500 can pass over the end point (or end face) of the extrusion portion 220 closest to the mounting seat 110, so that the top holding member 500 no longer provides rotational driving force to the rotating seat 410. At the same time, when the first elastic reset member 430 is no longer driven by the supporting member 500, the first elastic reset member 430 can restore its deformation under the action of its own elastic potential energy, and drive the rotating seat 410 to rotate in the opposite direction relative to the mounting seat 110 to reset. Accordingly, the rotating shaft 300 is no longer restricted by the limiting member, and restores the ability to rotate relative to the mounting seat 110, so that the rotating shaft 300 and the swing arm 210 can continue to rotate, and the electronic device can be switched to a folded state or a flattened state.

[0058] The embodiment of the present application discloses a hinge mechanism, which can be used in an electronic device to enable two adjacent screen support parts in the electronic device to rotate relative to each other, thereby enabling the electronic device to switch between a folded state and an unfolded state. In the hinge mechanism, a pressing portion 220 is provided on the side of the swing arm 210 facing the mounting seat 110, and the pressing portion 220 is used to abut against one end of the top holding member 500, so that during the rotation of the swing arm 210 relative to the mounting seat 110, the pressing portion 220 can drive the top holding member 500 to move linearly along the rotation axis 300 of the swing arm 210. At the same time, the other end of the supporting member 500 abuts against the matching portion 421 on the rotating seat 410, so that when the supporting member 500 moves along the rotating axis 300 in the direction away from the swing arm 210, the rotating seat 410 can be squeezed by the matching portion 421 to rotate relative to the mounting seat 110 in the direction around the rotating axis 300; and, during the rotation of the rotating seat 410, the first elastic reset member 430 can be pre-tightened so that the first elastic reset member 430 stores elastic potential energy, and the rotating seat 410 can also drive the limiting member to move, so that the limiting member, one part of which is connected to the mounting seat 110 and the other part of which is movable relative to the mounting seat 110 and the rotating seat 410, can hold the rotating shaft 300 tightly to limit the rotation of the rotating shaft 300.

[0059] Based on the above technical solution, during the operation of the hinge mechanism, when the top holding member 500 cooperates with the end point (or end face) of the extrusion portion 220 closest to the mounting seat 110, a relatively stable cooperation relationship can be formed between the top holding member 500 and the extrusion portion 220, so that all components of the hinge mechanism remain relatively still, and the angle between two adjacent swing arms 210 in the hinge mechanism in a direction perpendicular to the aforementioned rotation axis 300 can be positioned at certain specific angles, so that the hinge mechanism has a hovering capability, so that the display screen of the electronic device formed by using the hinge mechanism can present a specific expansion angle.

[0060] At the same time, in the above-mentioned hinge mechanism, since the action direction of the first elastic return member 430 is in the direction around the rotating axis 300, the first elastic return member 430 can be arranged in the direction around the rotating axis 300, which makes the space occupied by the first elastic member in the direction of the rotating axis 300 relatively small, which is only the width (or diameter) of the first elastic return member 430; and, the limit member is located between the rotating shaft 300 and the rotating seat 410, which makes the limit member not occupy additional space in the direction of the axial direction of the rotating shaft 300. Therefore, the hinge mechanism disclosed in the embodiment of the present application can improve the space utilization efficiency of electronic equipment.

[0061] As described above, one end of the top holding member 500 is used to abut against the extrusion portion 220, and the other end of the top holding member 500 is used to abut against the matching portion 421. More specifically, the top holding member 500 may include a top rod 510, a driving protrusion 520 and a connecting portion 530. The top rod 510 is a component of the top holding member 500 used to abut against the extrusion portion 220, the driving protrusion 520 is a component of the top holding member 500 used to abut against the matching portion 421, and the connecting portion 530 is a component used to connect the top rod 510 and the driving protrusion 520 as one body, that is, the top rod 510 is fixedly connected to the driving protrusion 520 through the connecting portion 530. Optionally, the top rod 510, the driving protrusion 520 and the connecting portion 530 can be formed in an integrated manner to improve the overall structural reliability of the top holding member 500. Of course, in order to facilitate processing, the top rod 510 and the driving protrusion 520 can also be formed separately.

[0062] In addition, as described above, the end of the supporting member 500 that abuts against the matching portion 421 may be provided with a driving surface 521. When the supporting member 500 includes the driving protrusion 520, the driving surface 521 is provided on the driving protrusion 520. The driving surface 521 may be an inclined plane. In a specific embodiment of the present application, the driving surface 521 is an inclined arc surface, which can reduce the contact area between the driving surface 521 and the matching portion 421 when they abut, thereby reducing the friction between the two and reducing the driving difficulty of the driving surface 521.

[0063] Similarly, one end of the top holding member 500 is also in abutment with the extrusion part 220. Optionally, one end of the top holding member 500 that is in abutment with the extrusion part 220 is provided with an extruded surface. When the top holding member 500 includes a push rod 510, the extruded surface is provided on the push rod 510, and the extruded surface is used to abut with the extrusion part 220. In order to reduce the friction between the extruded surface and the extrusion part 220, the extruded surface can be an arc surface or a spherical surface to reduce the contact area between the extruded surface and the extrusion part 220, thereby reducing the difficulty of driving the top holding member 500.

[0064] The supporting member 500 is installed on the mounting base 110. When the supporting member 500 includes a supporting rod 510, a driving protrusion 520 and a connecting portion 530, the mounting base 110 can be provided with a receiving groove 111 and a connecting groove 112. The receiving groove 111 is connected to the connecting groove 112, and the receiving groove 111 is connected to a side surface of the mounting base 110 facing the extrusion portion 220, and the connecting groove 112 is connected to the side of the mounting base 110. Specifically, the accommodating groove 111 and the connecting groove 112 can be formed on the mounting seat 110 by drilling or cutting after the mounting seat 110 is formed. In addition, in order to ensure that the push rod 510 can cooperate with the extrusion portion 220 and to facilitate the assembly work between the supporting member 500 and the mounting seat 110, the connecting groove 112 can be extended to the side surface of the mounting seat 110 facing the extrusion portion 220, so that the push rod 510 can be installed in the accommodating groove 111 from the side surface of the mounting seat 110 facing the extrusion portion 220, and the connecting portion 530 can be installed in the connecting groove 112.

[0065] In the case of adopting the above technical solution, the push rod 510 can be installed in the receiving groove 111, and the push rod 510 can move in the receiving groove 111 along the axial direction of the rotating shaft 300, so that the receiving groove 111 provides a guiding and limiting effect for the push rod 510, making the movement process of the push rod 510 more stable. The connecting portion 530 is installed in the connecting groove 112, and the driving protrusion 520 is located outside the mounting seat 110, reducing the difficulty of matching the driving protrusion 520 with the matching portion 421, and under the action of the connecting groove 112, the connecting portion 530 can connect the push rod 510 located inside the mounting seat 110 and the driving protrusion 520 located on one side of the mounting seat 110 as a whole, so that the push rod 510 can drive the driving protrusion 520 to move along the axial direction of the rotating shaft 300.

[0066] Furthermore, in the above technical solution, the matching portion 421 can be used to provide support for the supporting member 500, so that the top rod 510 of the supporting member 500 and the bottom of the accommodating groove 111 are spaced apart from each other, and when the top rod 510 is squeezed by the squeezing portion 220, a driving force is applied to the driving protrusion 520 through the connecting portion 530, so that the driving protrusion 520 moves along the axial direction of the rotating shaft 300 together with the top rod 510. During this process, the driving protrusion 520 can apply a force to the matching portion 421, so as to utilize the matching portion 421 to drive the rotating seat 410 to rotate relative to the mounting seat 110.

[0067] Correspondingly, when the push rod 510 is no longer squeezed by the extrusion portion 220, the first elastic reset member 430 restores its own elastic deformation, so that the first elastic reset member 430 can drive the rotating seat 410 to rotate in the opposite direction for reset. During this process, the matching portion 421 rotates in the opposite direction with the rotating seat 410, so that the matching portion 421 can push the driving protrusion 520 to move along the axial direction of the rotating shaft 300 toward the direction close to the swing arm 210, and enable the push rod 510 of the supporting member 500 to always maintain abutment with the extrusion portion 220.

[0068] In another embodiment of the present application, in order to further ensure that the top holding member 500 can always form a butting cooperation relationship with the extrusion portion 220, the top holding member 500 can also include a second elastic reset member 540, which is elastically arranged between the top rod 510 and the mounting seat 110, and when the extrusion portion 220 squeezes the top holding member 500 away from the swing arm 210, the second elastic reset member 540 is pre-tightened, so that when the end point or end surface of the extrusion portion 220 closest to the mounting seat 110 cooperates with the top holding member 500, the second elastic reset member 540 is pre-tightened. The elastic potential energy of the elastic reset member 540 reaches a maximum. When the swing arm 210 is acted upon by an external force and the matching relationship between the top holding member 500 and the extrusion portion 220 is broken, the second elastic reset member 540 can drive the push rod 510 to move toward the direction close to the swing arm 210, and the push rod 510 is always held against the surface of the extrusion portion 220, thereby ensuring the reset reliability of the top holding member 500 and reducing the load of the first elastic reset member 430, thereby ensuring that the rotating seat 410 can also be reliably reset under the action of the first elastic reset member 430.

[0069] More specifically, when the mounting base 110 is provided with a receiving groove 111, the second elastic return member 540 can be arranged in the receiving groove 111, and the end of the push rod 510 facing away from the extrusion portion 220 is abutted against the second elastic return member 540, thereby utilizing the receiving groove 111 to provide a limiting and guiding function for the second elastic return member 540, thereby improving the reliability and stability of the second elastic return member 540.

[0070] As described above, a portion of the limiter can be connected to the mounting seat 110, and another portion of the limiter can move relative to both the mounting seat 110 and the rotating seat 410, and the limiter can be a single structural member, or the limiter can be a structural assembly formed by multiple parts. In a specific embodiment of the present application, the limit member includes a friction block 440, a connecting member 450 and a pin 460, wherein the friction block 440 is a component of the limit member used to cooperate with the rotating shaft 300, which can provide a clamping effect for the rotating shaft 300 to limit the rotation of the rotating shaft 300; the connecting member 450 is a component that transmits a driving action between the rotating seat 410 and the friction block 440, so that when the rotating seat 410 rotates, the driving action of the rotating seat 410 is transmitted to the friction block 440, so that the friction block 440 moves relative to the rotating shaft 300; the pin 460 is a component that connects the friction block 440 and the mounting seat 110, so that the friction block 440 can form a rotational cooperation relationship with the mounting seat 110, and then when the friction block 440 is driven by the connecting member 450, it can rotate relative to the mounting seat 110 with the pin 460 as the axis, and move in a direction close to the rotating shaft 300, so as to clamp the rotating shaft 300 and limit the rotation of the rotating shaft 300.

[0071] Specifically, the friction block 440 can be formed of a material with relatively good friction performance such as rubber, and the friction block 440 can be a block structure, and more specifically, the friction block 440 can be an arc-shaped structural member, so that when the friction block 440 is used to cooperate with the rotating shaft 300, the contact area between the friction block 440 and the rotating shaft 300 is relatively larger, and the holding effect provided by the friction block 440 on the rotating shaft 300 is improved. One end of the friction block 440 can be rotatably connected to the mounting seat 110 through a pin 460, so that the friction block 440 can rotate relative to the mounting seat 110 with the pin 460 as the axis.

[0072] Of course, when the rotating seat 410 is driven by the supporting member 500 to rotate, in order to ensure that the friction block 440 can move in the direction close to the rotating shaft 300, one end of the connecting member 450 can be rotatably connected to the rotating seat 410, and the other end of the connecting member 450 can be rotatably connected between the two opposite ends of the friction block 440, so that when the rotating seat 410 rotates, the driving force can be applied to the middle of the friction block 440 through the connecting member 450, so as to drive the friction block 440 to rotate relative to the mounting seat 110 with the pin 460 as the axis, and press the rotating shaft 300, thereby limiting the rotation of the rotating shaft 300. Specifically, the connecting member 450 can be a rod-shaped structure. In order to improve the driving stability of the connecting member 450, the connecting member 450 can be an arc-shaped sheet structure to provide a more uniform driving effect for the friction block 440 in the axial direction of the rotating shaft 300. Furthermore, in order to make the rotational cooperation relationship formed between the opposite ends of the connecting member 450 and the rotating seat 410 and the friction block 440 more stable, a groove-shaped limiting structure can be set at the corresponding positions on the rotating seat 410 and the friction block 440, and a cylindrical structure can be set at the opposite ends of the connecting member 450 as an "axis" so that the "axis" at the opposite ends of the connecting member 450 can rotate and cooperate with the aforementioned groove-shaped limiting structure accordingly, thereby improving the movement stability of the connecting member 450.

[0073] In order to further improve the clamping effect of the rotating shaft 300, optionally, there are multiple limiters, and the multiple limiters are spaced from each other along the circumference of the rotating shaft 300 to prevent the limiters from interfering with each other in the process of clamping the rotating shaft 300; at the same time, the multiple limiters are arranged to surround the rotating shaft 300, so as to provide a clamping effect for the rotating shaft 300 from different directions of the rotating shaft 300, so that the limiting effects at various locations on the circumference of the rotating shaft 300 are the same or similar, thereby achieving the purpose of improving the clamping effect of the rotating shaft 300. Specifically, the shapes and sizes of the multiple limiters can be the same to reduce the difficulty of installing the multiple limiters and improve the limiting effect of the multiple limiters on the rotating shaft 300. More specifically, each limiter can include the above-mentioned friction block 440, connecting member 450 and pin 460, so that each limiter has a relatively good limiting effect.

[0074] As described above, the matching portion 421 can be a columnar protrusion, and the top holding member 500 is in contact with the matching portion 421, so that the two can achieve the purpose of driving the rotating seat 410 relative to the mounting seat 110 through the matching portion 421 by sliding friction. In another embodiment of the present application, in order to further reduce the difficulty of driving the rotating seat 410, the matching portion 421 is provided with a roller 422, and the roller 422 is rollingly mounted on the matching portion 421, and the roller 422 and the top holding member 500 are rollingly matched, so that the top holding member 500 utilizes the rolling friction matching relationship with the roller 422 to achieve the purpose of driving the rotating seat 410 to rotate, which can reduce the friction force on the top holding member 500, thereby improving the smoothness of the rotation of the rotating seat 410. More specifically, when the supporting member 500 includes the driving protrusion 520 , the driving protrusion 520 can be rollingly matched with the roller 422 , and the rotating seat 410 can be driven to rotate relative to the mounting seat 110 through the roller 422 .

[0075] As described above, the first elastic reset member 430 can be elastically arranged between the mounting seat 110 and the rotating seat 410 in a variety of ways. A specific embodiment is that a limiting groove 411 extending along the circumference of the rotating shaft 300 is provided on the rotating seat 410, and in order to ensure that the first elastic reset member 430 can provide an elastic reset function for the rotating seat 410, the rotating seat 410 can form a limiting matching relationship with the mounting seat 110 in the circumferential direction of the rotating shaft 300 through a limiting shaft 470 fixed to the mounting seat 110, and the first elastic reset member 430 is elastically arranged between the limiting shaft 470 and the end wall of the limiting groove 411, and then the limiting groove 411 is used to provide the first elastic reset member 430 with installation, guidance and limiting functions. On the one hand, it further reduces the occupied space of the components in the hinge mechanism and improves the space utilization rate inside the hinge mechanism. On the other hand, it can also improve the movement stability of the first elastic reset member 430.

[0076] Specifically, the limiting groove 411 can be extended along the circumference of the rotating shaft 300 on the rotating disk, so that the shape of the limiting groove 411 adapts to the movement trajectory of the rotating seat 410, and the guiding and limiting functions of the limiting groove 411 are enhanced. The extension length of the limiting groove 411 is related to the natural length of the first elastic reset member 430. When the rotating seat 410 is in the initial state, that is, the extrusion part 220 has not yet applied an extrusion force to the supporting member 500, and the matching part 421 is squeezed, the limiting shaft 470 can be located at one end wall of the limiting groove 411, and the opposite ends of the first elastic reset member 430 are respectively abutted between the other end wall of the limiting groove 411 and the limiting shaft 470, so that when the extrusion part 220 drives the matching part 421 with the supporting member 500, the limiting shaft 470 can be moved. During the rotation of the movable rotating seat 410, since the limiting shaft 470 is relatively fixed to the mounting seat 110, as the rotating seat 410 continues to rotate, the first elastic reset member 430 can be continuously squeezed, and when the supporting portion moves to the end point of the extrusion portion 220, the elastic potential energy of the first elastic reset member 430 can reach the maximum. Accordingly, after the supporting portion passes over the end point of the extrusion portion 220, the first elastic reset member 430 can restore the deformation under its own elastic action, and drive the rotating seat 410 to rotate in the opposite direction to reset.

[0077] In order to further improve the movement stability and reliability of the rotating seat 410, optionally, the number of the limiting grooves 411, the limiting shafts 470 and the first elastic return parts 430 are all multiple, and the multiple limiting grooves 411 are arranged at intervals along the circumference of the rotating shaft 300 on the rotating seat 410, and the multiple limiting grooves 411, the multiple limiting shafts 470 and the multiple first elastic return parts 430 correspond to each other one by one, so as to utilize the multiple first elastic return parts 430 dispersedly distributed on the rotating seat 410 to provide the rotating seat 410 with a more stable and reliable return effect. More specifically, the shapes and sizes of the multiple limiting grooves 411 can be made to be the same to reduce the difficulty of installing the first elastic return part 430, and the multiple limiting grooves 411 can be evenly arranged along the circumference of the rotating shaft 300 to provide a more uniform return force for the rotating disk.

[0078] Based on the above embodiment, when the limiting member includes a friction block 440, the number of limiting grooves 411 can be equal to the number of friction blocks 440, and multiple limiting grooves 411 can correspond one-to-one to multiple friction blocks 440, so as to further improve the limiting uniformity and reliability between the friction block 440 and the rotating shaft 300.

[0079] As described above, the mounting seat 110 can be fixed to the base 900 so that the mounting seat 110 will not rotate with the rotating shaft 300. Since the hinge mechanism is used to connect two adjacent screen support parts, and both screen support parts must have the ability to rotate, for this reason, the number of screen support parts and rotating shafts 300 corresponds to each other, that is, the hinge mechanism connected between two adjacent screen support parts can include two rotating shafts 300. Correspondingly, the number of mounting seats 110 can also be two, and the two mounting seats 110 are set in a one-to-one correspondence with the two rotating shafts 300.

[0080] In more detail, the mounting base 110, the swing arm 210, the rotating shaft 300, the clamping assembly 400 and the top holding member 500 correspond to each other, and can together form a suspension assembly to provide a suspension effect for the screen support portion. In addition, since the hinge mechanism includes two rotating shafts 300, the hinge mechanism can include at least two groups of suspension assemblies, and the rotating shafts 300 in adjacent suspension assemblies are distributed along a direction perpendicular to the axial direction of the rotating shafts 300, and the adjacent suspension assemblies are respectively used to provide a suspension effect for two adjacent screen support portions. Optionally, in the axial direction of the rotating shaft 300, the size of the rotating shaft 300 can be made the same as or similar to the size of the screen supporting part. In this case, multiple swing arms 210, clamping assemblies 400 and top holding members 500 can be set on the same rotating shaft 300, and the multiple swing arms 210 are distributed at intervals along the axial direction of the rotating shaft 300, and the multiple swing arms 210 are all connected to the same screen supporting part; or, multiple rotating shafts 300 can be provided with axial intervals along the rotating shaft 300, and the multiple rotating shafts 300 are equipped with swing arms 210, clamping assemblies 400 and top holding members 500 correspondingly, so that multiple hovering assemblies are connected to the same screen supporting part accordingly to improve the movement stability of the screen supporting part.

[0081] Based on the above embodiment, two adjacent mounting seats 110 in the same hinge mechanism can be fixedly connected through the bridge seat 120, and the two mounting seats 110 are respectively matched with the two rotating shafts 300. In this case, a fixed connection relationship can be formed between the two mounting seats 110, and during the rotation of the rotating shaft 300, the mounting seats 110 will not rotate with the rotating shaft 300.

[0082] As described above, the two adjacent screen support parts connected by the hinge mechanism both have the ability to rotate relative to the mounting base 110. For this purpose, the hinge mechanism disclosed in the embodiment of the present application may also include a synchronization mechanism. The synchronization mechanism may include a first gear and a second gear, and the first gear and the second gear may be respectively installed on two adjacent rotating shafts 300 in the hinge mechanism along the axial direction perpendicular to the rotating shaft 300. The first gear and the second gear are meshed with each other, and the two are rotated with the corresponding rotating shafts 300 respectively. In this case, the two swing arms 210 respectively connected to the two adjacent screen support parts can form a synchronous rotation matching relationship, and then when a certain screen support part rotates relative to the mounting base 110, the synchronization mechanism can be used to drive the other screen support part to rotate relative to the mounting base 110, so that the two adjacent screen support parts form a synchronous rotation relationship, ensuring that the bending angle at any position on the flexible screen is relatively small, thereby improving the service life of the flexible screen.

[0083] Alternatively, gear teeth may be formed on the swing arms 210 respectively connected to the adjacent screen support parts, and the gear teeth of one of the adjacent swing arms 210 may form a synchronous meshing relationship with the gear teeth on the other through the first gear and the second gear. This may also allow the two adjacent swing arms 210 in a direction perpendicular to the axial direction of the rotating shaft 300 to form a synchronous relationship, and the first gear and the second gear may not occupy the additional axial space of the rotating shaft 300, thereby improving the compactness of the installation of the components in the hinge mechanism. Accordingly, in order to ensure the operational stability of the first gear and the second gear, in the case where the hinge mechanism includes the above-mentioned bridge seat 120, two shaft holes may be provided on the bridge seat 120, and the wheel axles of the first gear and the second gear may be rotatably installed in the two shaft holes, respectively, thereby improving the operational stability of the first gear and the second gear.

[0084] Based on the hinge mechanism disclosed in any of the above embodiments, the embodiment of the present application further discloses an electronic device, which includes a plurality of screen support parts and any of the above hinge mechanisms. During the assembly of the electronic device, any two adjacent screen support parts are connected to the swing arm 210 in the hinge mechanism, so that the two adjacent screen support parts can form a rotational matching relationship through the hinge mechanism.

[0085] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0086] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A hinge mechanism, characterized in that: It comprises a mounting seat (110), a swing arm (210), a rotating shaft (300), a clamping assembly (400) and a supporting member (500). The clamping assembly (400) comprises a rotating seat (410), a matching portion (421), a first elastic reset member (430) and a limiting member, wherein the limiting member is arranged on the outer side of the rotating shaft (300), the rotating seat (410) is rotatably arranged on the outer side of the limiting member, the matching portion (421) is fixedly arranged on the rotating seat (410), and the first elastic reset member (430) is elastically connected between the rotating seat (410) and the mounting seat (110); a part of the limiting member is connected to the mounting seat (110), and another part of the limiting member is movable relative to the mounting seat (110) and the rotating seat (410); The swing arm (210) is sleeved on the rotating shaft (300), the rotating shaft (300) is rotatably connected to the mounting seat (110), the swing arm (210) is provided with an extrusion portion (220), one end of the supporting member (500) is in contact with the extrusion portion (220), and the other end of the supporting member (500) is in contact with the matching portion (421); When the rotating shaft (300) and the swing arm (210) rotate synchronously, the extrusion portion (220) squeezes the supporting member (500) to push the matching portion (421) to drive the rotating seat (410) to rotate and pre-tighten the first elastic reset member (430), and the rotating seat (410) drives the limiting member to press the rotating shaft (300) to limit the rotation of the rotating shaft (300).

2. The hinge mechanism according to claim 1, characterized in that: The supporting member (500) comprises a push rod (510), a driving protrusion (520) and a connecting portion (530); the push rod (510) is fixedly connected to the driving protrusion (520) via the connecting portion (530); the push rod (510) abuts against the extrusion portion (220); and the driving protrusion (520) abuts against the matching portion (421); The mounting seat (110) is provided with a receiving groove (111) and a communicating groove (112); the receiving groove (111) is communicated with the communicating groove (112); the receiving groove (111) is communicated with a side surface of the mounting seat (110) facing the extrusion portion (220); the communicating groove (112) is communicated with a side surface of the mounting seat (110); the push rod (510) is movably installed in the receiving groove (111) along the axial direction of the rotating shaft (300); the connecting portion (530) is installed in the communicating groove (112); and the driving protrusion (520) is located on the outer side of the mounting seat (110).

3. The hinge mechanism according to claim 1, characterized in that: The supporting member (500) comprises a supporting rod (510) and a second elastic return member (540), one end of the supporting rod (510) is in contact with the extrusion portion (220), and the second elastic return member (540) is elastically arranged between the supporting rod (510) and the mounting seat (110), and when the extrusion portion (220) presses the supporting member (500) away from the swing arm (210), the second elastic return member (540) is pre-tightened.

4. The hinge mechanism according to claim 1, characterized in that: The limiting member comprises a friction block (440), a connecting member (450) and a pin shaft (460); one end of the friction block (440) is rotatably connected to the mounting seat (110) via the pin shaft (460); one end of the connecting member (450) is rotatably connected to the rotating seat (410); the other end of the connecting member (450) is rotatably connected between opposite ends of the friction block (440), so that when the rotating seat (410) rotates, the friction block (440) is driven to rotate via the connecting member (450) to press the rotating shaft (300).

5. The hinge mechanism according to claim 1, characterized in that: There are a plurality of the limiting members, and the plurality of limiting members are spaced apart from each other along the circumference of the rotating shaft (300) and are arranged to surround the rotating shaft (300).

6. The hinge mechanism according to claim 1, characterized in that: One end of the supporting member (500) is provided with an extruded surface, the extruded surface abuts against the extrusion portion (220), and the extruded surface is an arcuate surface or a spherical surface; The other end of the supporting member (500) is provided with a driving surface, the driving surface abuts against the matching portion, and the driving surface extends obliquely in an arc shape relative to the axial direction of the rotating shaft (300).

7. The hinge mechanism according to claim 1, characterized in that: The matching portion (421) is provided with a roller (422), the roller (422) is rotatably mounted on the matching portion (421), and the roller (422) is rollingly matched with the supporting member (500).

8. The hinge mechanism according to claim 1, characterized in that: The rotating seat (410) is provided with a limiting groove (411) extending along the circumferential direction of the rotating shaft (300); the rotating seat (410) is rotatably matched with the mounting seat (110) in the circumferential direction of the rotating shaft (300) via a limiting shaft (470) fixed to the mounting seat (110); and the first elastic reset member (430) is elastically arranged between the limiting shaft (470) and the end wall of the limiting groove (411); The number of the limiting grooves (411), the limiting shafts (470) and the first elastic return members (430) are all multiple, and the multiple limiting grooves (411) are arranged on the rotating seat (410) at intervals along the circumference of the rotating shaft (300), and the multiple limiting grooves (411), the multiple limiting shafts (470) and the multiple first elastic return members (430) are matched one by one.

9. The hinge mechanism according to claim 1, characterized in that: The mounting seat (110), the swing arm (210), the rotating shaft (300), the clamping assembly (400) and the supporting member (500) form a suspension assembly, and the hinge mechanism comprises at least two groups of suspension assemblies, the rotating shafts (300) in adjacent suspension assemblies are distributed along a direction perpendicular to the axial direction of the rotating shafts (300), and the mounting seats (110) in adjacent suspension assemblies are fixedly connected via a bridging seat (120).

10. An electronic device, characterized in that: It comprises a plurality of screen supporting parts and the hinge mechanism according to any one of claims 1 to 9, wherein any two adjacent screen supporting parts are connected to the swing arm (210) in the hinge mechanism.

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