CN115507109A

CN115507109A - Hinge mechanism and electronic device

Info

Publication number: CN115507109A
Application number: CN202211131049.1A
Authority: CN
Inventors: 郑颖; 谭瑞昌
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-12-23
Also published as: WO2024055950A1

Abstract

The application discloses a hinge mechanism and electronic equipment, and belongs to the field of communication equipment, wherein the hinge mechanism comprises a mounting seat, a swing arm, a rotating shaft, a holding assembly and a jacking piece, the holding assembly comprises a rotating seat, a matching part, a first elastic resetting piece and a limiting piece, the limiting piece is arranged on the outer side of the rotating shaft, the rotating seat is rotatably arranged on the outer side of the limiting piece, the matching part is fixedly arranged on the rotating seat, and the first elastic resetting piece is elastically connected between the rotating seat and the mounting seat; one part of the limiting piece is connected to the mounting seat, and the other part of the limiting piece moves relative to the mounting seat and the rotating seat; the swing arm is sleeved on the rotating shaft, the rotating shaft is rotatably connected with the mounting seat, the swing arm is provided with an extrusion part, one end of the propping piece is abutted against the extrusion part, and the other end of the propping piece is abutted against the matching part; under the synchronous pivoted condition of pivot and swing arm, the piece is held in extrusion portion extrusion to promote cooperation portion drive roating seat and rotate the first elasticity of pretension piece, and roating seat drive locating part compresses tightly the pivot, with the rotation of restriction pivot.

Description

Hinge mechanism and electronic device

Technical Field

The application belongs to the technical field of communication equipment, and in particular relates to a hinge mechanism and electronic equipment.

Background

With the development of the technology, deformable display products are gradually mature, and electronic devices such as folding screen mobile phones and the like are developed vigorously. In order to enable the foldable electronic device to have the hovering capability in the "half-unfolded" state, in the current foldable mobile phone, a spring is usually built in a hinge mechanism to provide a torque for a rotating component, so that components used for supporting the display screen in the foldable electronic device can be kept in a state of a specific angle such as 120 ° and the display screen is suspended in the "half-unfolded" state. However, in the above-mentioned technical solutions, the springs need to be arranged along the axial direction of the rotation direction, which results in a relatively large space occupied by the springs, and a large adverse effect on the space utilization efficiency in the electronic device is generated.

Disclosure of Invention

The embodiment of the application aims to provide a hinge mechanism and electronic equipment, and solves the problem that the existing folding electronic equipment needs to be arranged along the rotating axial direction for realizing the suspension purpose, and the space utilization efficiency of the electronic equipment is adversely affected.

In a first aspect, the embodiment of the application discloses a hinge mechanism, which comprises a mounting seat, a swing arm, a rotating shaft, a holding component and a jacking component,

the clasping assembly comprises a rotating seat, a matching part, a first elastic resetting piece and a limiting piece, the limiting piece is arranged on the outer side of the rotating shaft, the rotating seat is rotatably arranged on the outer side of the limiting piece, the matching part is fixedly arranged on the rotating seat, and the first elastic resetting piece is elastically connected between the rotating seat and the mounting seat; one part of the limiting piece is connected to the mounting seat, and the other part of the limiting piece moves relative to the mounting seat and the rotating seat;

the swing arm is sleeved on the rotating shaft, the rotating shaft is rotatably connected with the mounting seat, the swing arm is provided with an extrusion part, one end of the jacking piece is abutted against the extrusion part, and the other end of the jacking piece is abutted against the matching part;

under the synchronous pivoted condition of pivot with the swing arm, extrusion portion extrudees the piece is held on the top, in order to promote cooperation portion drive the roating seat rotates the pretension first elasticity piece that resets, just the roating seat drive the locating part compresses tightly the pivot, in order to restrict the rotation of pivot.

In a second aspect, an embodiment of the present application discloses an electronic device, which includes a plurality of screen supporting portions and the hinge mechanism described above, where any two adjacent screen supporting portions are connected to the swing arm in the hinge mechanism.

The embodiment of the application discloses a hinge mechanism, which can be applied to electronic equipment, so that two adjacent screen supporting parts in the electronic equipment have relative rotation capacity, and further the electronic equipment can be switched between a folded state and an unfolded state. In the hinge mechanism, one side of the swing arm towards the mounting seat is provided with an extrusion part, and the extrusion part is used for abutting against one end of the jacking piece, so that the jacking piece can be driven to do linear motion along the rotary axial direction of the swing arm through the extrusion part in the process that the swing arm rotates relative to the mounting seat. Meanwhile, the other end of the jacking piece is abutted against the matching part on the rotating seat, so that when the jacking piece moves in the direction far away from the swing arm along the rotating axial direction, the rotating seat can be extruded by the matching part to rotate relative to the mounting seat along the direction around the rotating axial direction; in addition, in the rotating process of the rotating seat, the first elastic resetting piece can be pre-tightened to enable the first elastic resetting piece to store elastic potential energy, and the rotating seat can also drive the limiting piece to act, so that one part of the rotating seat is connected to the mounting seat, and the other part of the rotating seat can tightly hold the rotating shaft relative to the limiting piece which is movable relative to the mounting seat and the rotating seat, so as to limit the rotation of the rotating shaft.

Based on the technical scheme, when the jacking piece is matched with the end point (or the end surface) of the extrusion part, which is closest to the mounting seat, in the working process of the hinge mechanism, the jacking piece and the extrusion part can form a stable matching relation, so that all parts of the hinge mechanism are kept relatively static, the included angle between two adjacent swing arms in the hinge mechanism in the direction perpendicular to the rotating axial direction can be positioned at certain specific angles, so that the hinge mechanism has hovering capacity, and a display screen of the electronic device formed by the hinge mechanism can present a specific unfolding angle.

Meanwhile, in the hinge mechanism, since the acting direction of the first elastic resetting piece is the direction around the rotation axial direction, the first elastic resetting piece can be arranged in the direction around the rotation axial direction, so that the space occupied by the first elastic resetting piece in the direction of the rotation axial direction is relatively small and is only the width (or diameter) of the first elastic resetting piece; moreover, the limiting piece is located between the rotating shaft and the rotating base, so that the limiting piece does not additionally occupy the space in the direction of the axial direction of the rotating shaft, and therefore, the hinge mechanism disclosed by the embodiment of the application can improve the space utilization efficiency of the electronic equipment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural diagram of a hinge mechanism disclosed in an embodiment of the present application;

FIG. 2 is a schematic structural view of the hinge mechanism disclosed in the embodiment of the present application in another direction;

FIG. 3 is an exploded schematic view of a hinge mechanism disclosed in an embodiment of the present application;

FIG. 4 is a schematic view showing a partial structure in a hinge mechanism disclosed in an embodiment of the present application;

FIG. 5 is a schematic view of the assembly of the top holder and the mounting seat in the hinge mechanism disclosed in the embodiments of the present application;

FIG. 6 is an exploded view of the top piece in the hinge mechanism disclosed in the embodiments of the present application;

FIG. 7 is a schematic view of the engagement of the holding member with the pressing portion in the hinge mechanism disclosed in the embodiments of the present application;

FIG. 8 is a schematic view of the assembly of the holding member and the mating portion in the hinge mechanism disclosed in the embodiments of the present application;

FIG. 9 is an exploded view of a portion of the structure of a clasping assembly in a hinge mechanism as disclosed in an embodiment of the present application;

FIG. 10 is a schematic view of a portion of a structure in a clasping assembly in a hinge mechanism disclosed in an embodiment of the present application;

FIG. 11 is a schematic view of the assembly of the friction block and the connecting member in the clasping assembly in the hinge mechanism disclosed in the embodiments of the present application;

fig. 12 is a schematic view of the working principle of the clasping component in the hinge mechanism disclosed in the embodiment of the application.

Description of reference numerals:

110-mounting seat, 111-accommodating groove, 112-communicating groove, 120-bridging seat,

210-swing arm, 220-extrusion part, 221-driving inclined plane,

300-a rotating shaft,

400-clasping component, 410-rotating seat, 411-limiting groove, 421-matching part, 422-roller, 430-first elastic resetting piece, 440-friction block, 450-connecting piece, 460-pin shaft, 470-limiting shaft,

500-top holding piece, 510-top rod, 520-driving lug, 521-driving surface, 530-connecting part, 540-second elastic restoring piece,

900-base.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

The electronic device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 1 to 12, an embodiment of the present application discloses a hinge mechanism and an electronic device, where the hinge mechanism can be applied to the electronic device, so that the electronic device has folding and unfolding capabilities, and further has a larger display area and better portability, and better user experience.

As described above, the hinge mechanism is used to enable the electronic device to have a folding capability, for this reason, the folding mechanism may be connected between two adjacent screen support portions in the electronic device, the screen support portions are used to support (a part of) the display screen, and the two adjacent screen support portions are connected to each other through the hinge mechanism, i.e., the capability of relative rotation between the two screen support portions can be ensured. Of course, the electronic device disclosed in the embodiment of the present application may include two or more screen supporting portions, and any two adjacent screen supporting portions may be connected by a hinge mechanism, so as to ensure that any two adjacent screen supporting portions may relatively rotate under the effect of the hinge mechanism.

For convenience of introduction, the electronic device includes two screen supporting portions and a hinge mechanism, for example, in the electronic device, the display screen supported by the screen supporting portion may include two hard display screens and a flexible screen, the two hard display screens are respectively supported by the two screen supporting portions and are connected to each other through the flexible screen, so as 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 uniformity of the display screen and improve the display effect of the electronic device, the display screen of the electronic device may be a one-piece flexible display screen, and one portion of the flexible display screen is supported on one screen supporting portion, and the other portion of the flexible display screen is supported on the other screen supporting portion, so that the flexible display screen has the capability of relative movement between different portions under the effect of the hinge mechanism.

As shown in fig. 1 to 3, the hinge mechanism disclosed in the embodiment of the present application includes a mount 110, a swing arm 210, a rotation shaft 300, a clasping assembly 400, and a top holder 500. The swing arm 210 is used to connect with a screen support part in the electronic device, so as to drive the swing arm 210 to rotate together when the screen support part rotates. The swing arm 210 is sleeved on the rotating shaft 300, and the swing arm 210 and the rotating shaft 300 which are matched with each other rotate synchronously, so that in the process of rotating one of the swing arm 210 and the rotating shaft 300, the other one of the swing arm 210 and the rotating shaft 300 can be driven to rotate together. Moreover, under the driving action of the pressing portion 220 on the swing arm 210, the supporting member 500 can move along the axial direction of the rotating shaft 300, and under the action of the supporting member 500, the rotating base 410 in the clasping assembly 400 can be driven to rotate along the circumferential direction of the rotating shaft 300, and the first elastic resetting member 430 is compressed (or stretched), and when an end point (or an end surface, which is the position closest to the mounting base 110 in the pressing portion 220) on the pressing portion 220 of the swing arm 210 is matched with the supporting member 500, the elastic potential energy of the first elastic resetting member 430 reaches the maximum.

In addition, in order to ensure that a relatively stable matching relationship can be formed between the end point of the pressing portion 220 and the supporting member 500, the supporting member 500 can be kept in the aforementioned state without being affected by an external force when moving to the end point of the pressing portion 220 by providing a structure such as a positioning recess at the end point (or end surface) of the pressing portion 220, or by providing a positioning recess at the end of the supporting member 500 facing the pressing portion 220; accordingly, when the hinge mechanism is acted by an external force, the above state can be broken, the supporting member 500 passes through the end point of the pressing portion 220, and the rotating disc in the hinge mechanism reversely rotates to reset under the action of the first elastic resetting member 430, and the swing arm 210 can drive the rotating shaft 300 to continuously rotate relative to the mounting base 110.

In addition, when the pushing part 500 moves to the end point of the pushing part 220 along the pushing part 220, the friction force can be used to limit the continuous movement of the pushing part 500 and overcome the elastic force of the first elastic resetting piece 430 which is pushed (or stretched) by the friction force in a manner of increasing the magnitude of the friction force between the end point of the pushing part 220 close to the mounting seat 110 and the pushing part 500.

In detail, the clasping assembly 400 comprises a rotating base 410, a matching portion 421, a first elastic resetting piece 430 and a limiting piece, wherein the rotating base 410 may be formed by a hard material, the rotating base 410 may be a cube or other block-shaped structural piece, and the rotating base 410 may be disposed on one side of the rotating shaft 300, or the rotating base 410 may also be an annular structural piece, in this case, the rotating base 410 may be sleeved outside the rotating shaft 300, and the rotating base 410 and the mounting base 110 are in rotating fit in the circumferential direction of the rotating shaft 300, so as to ensure that the rotating base 410 may be driven, so as to pre-tighten the first elastic resetting piece 430, and enable the limiting piece to compress the rotating shaft 300, so as to limit the rotation of the rotating shaft 300.

The matching portion 421 is fixedly disposed on the rotating base 410, and specifically, the matching portion 421 is configured to match with the supporting member 500, so that the rotating base 410 is driven to rotate relative to the mounting base 110 through the matching portion 421 under the condition that the supporting member 500 moves along the axial direction of the rotating shaft 300. The engaging portion 421 may be a cylindrical protrusion to be engaged with the holder 500. The rotating base 410 and the mounting base 110 can form a rotating fit relationship by additionally arranging a central shaft, or the mounting base 110 and the rotating base 410 are sleeved outside the rotating shaft 300, and the mounting base 110 and the rotating base 410 can rotate relatively by using a limiting structure.

First elasticity piece 430 that resets can be formed by elastic material to it possesses the elasticity ability to guarantee that first elasticity piece 430 resets, and is compressed when receiving external force, can resume self deformation when removing external force, produces the effect of resetting. In another embodiment of the present application, the first elastic restoring member 430 may be a spring to ensure that the first elastic restoring member 430 has a relatively large elastic deformation amount and elastic potential energy, so as to improve the elastic restoring capability of the first elastic restoring member 430.

In addition, the first elastic restoring member 430 is elastically connected between the rotating base 410 and the mounting base 110, and specifically, in the case that the rotating base 410 is a block-shaped structure, a baffle may be disposed on the mounting base 110, and the first elastic restoring member 430 may be disposed between the baffle and the rotating base 410. When the baffle is located downstream of the rotating base 410 in the rotating direction, the first elastic restoring member 430 may abut against the baffle and rotate, so that when the rotating base 410 rotates relative to the mounting base 110, the first elastic restoring member 430 may be pressed; when the baffle is located at the upstream of the rotating base 410 along the rotating direction, two opposite ends of the first elastic restoring member 430 may be respectively and fixedly connected to the baffle and the rotating base 410, so that the first elastic restoring member 430 can be stretched when the rotating base 410 rotates relative to the mounting base 110. Of course, a groove may be further disposed on a side of the rotating base 410 facing the mounting base 110, and the baffle and the first elastic restoring member 430 are disposed in the groove, and it is also ensured that the first elastic restoring member 430 can be elastically connected between the rotating base 410 and the mounting base 110. In the case that the rotating base 410 is of a ring structure, the first elastic resetting member 430 and the pin shaft 460 may be disposed in the limiting groove 411, and a specific assembly manner of the first elastic resetting member 430 is determined according to a specific disposition position of the first elastic resetting member 430, which is not repeated here in consideration of a simple text.

In the case where the first elastic restoring member 430 is elastically provided between the rotating base 410 and the mounting base 110, the rotating base 410 and the mounting base 110 may be restricted from relatively rotating in the circumferential direction of the rotating shaft 300 by the first elastic restoring member 430. Of course, under the action of the external force, the rotating base 410 and the mounting base 110 can also rotate relatively, and the first elastic restoring member 430 is pre-tensioned, that is, the first elastic restoring member 430 is stretched or compressed to store elastic potential energy. And, after the external force is removed, the first elastic resetting member 430 can be restored to be deformed under the action of its own elastic potential energy, and drives the rotating base 410 and the mounting base 110 to be reset.

The limiting member is disposed outside the rotating shaft 300, and the rotating base 410 is rotatably disposed outside the limiting member, that is, the limiting member is located between the rotating shaft 300 and the rotating base 410, and the rotating base 410 is used for providing a driving effect for the action of the limiting member. In the process of installing the limiting element, one part of the limiting element is connected to the installation base 110, and the other part of the limiting element is movable relative to both the installation base 110 and the rotation base 410, so as to provide a holding effect for the rotation shaft 300 by using the limiting element.

Optionally, the limiting element is specifically an independent component, for example, it may be a block-shaped structural element, and the limiting element has a certain deformation capability, in this case, two opposite ends of the limiting element may be respectively connected to the inner side of the rotating base 410 and the mounting base 110, so that in the process that the rotating shaft 300 rotates, and the supporting element 500 drives the rotating base 410 to rotate relative to the mounting base 110, the rotating base 410 can deform the limiting element and extrude the rotating shaft 300 in a manner of extruding the limiting element, thereby improving an effect of limiting the rotating shaft 300 to continue rotating. Of course, in other embodiments of the present application, the limiting element may also be a combined structure, that is, the limiting element may include a plurality of portions, the portions are located between the rotating base 410 and the rotating shaft 300, and one portion of the limiting element may be connected to the rotating base 410, and the other portion of the limiting element may be connected to the mounting base 110.

In the process of assembling the hinge mechanism, the mounting seat 110 is disposed between the swing arm 210 and the rotary seat 410 along the axial direction of the rotating shaft 300, so as to ensure that the mounting seat 110 can provide a mounting effect for the supporting member 500 which is used for being matched with both the swing arm 210 and the rotary seat 410. Specifically, the mounting base 110 may be formed of a hard material such as metal or plastic, and the actual shape of the mounting base 110 may be determined according to the conditions of the hinge mechanism and/or the remaining space in the electronic device, which is not limited herein. In the hinge mechanism disclosed in the embodiment of the present application, the mount 110 may actually be regarded as a reference frame, that is, the mount 110 may 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 clasping assembly 400, and the top holder 500, may relatively rotate or relatively move with respect to the mount 110.

In order to ensure that the mounting base 110 can be used as a reference system for other components in the hinge mechanism, the mounting base 110 can be directly or indirectly connected with the two adjacent rotating shafts 300, for example, the two rotating shafts 300 can be respectively arranged on the two mounting bases 110 in a penetrating manner, and the two rotating shafts 300 can rotate relative to the corresponding mounting base 110, so that the two mounting bases 110 are fixedly connected, that is, the mounting base 110 can be used to ensure that the distance between the two rotating shafts 300 is always kept unchanged. Meanwhile, the swing arm 210 and the clasping assembly 400 are both sleeved on the rotating shaft 300, so that the mounting base 110 can also provide a positioning function for the swing arm 210 and the clasping assembly 400. Accordingly, by installing the supporting member 500 on the installation base 110, the movement range of the supporting member 500 can also be limited by the installation base 110, and the aforementioned components are connected together to form an integral structural member. Alternatively, the hinge mechanism may further include a base 900, and the base 900 is disposed between two adjacent rotation shafts 300, in this case, the mounting base 110 and the base 900 may form a fixed connection relationship, which also ensures that the mounting base 110 can be used as a reference system for other components in the hinge mechanism.

The swing arm 210 is a component of the hinge mechanism for directly connecting with the screen supporting part of the electronic device, and then in the process of relative rotation of two adjacent screen supporting parts, the two swing arms 210 correspondingly connected with the two screen supporting parts can be driven to rotate relatively. As described above, the mounting base 110 can serve as a reference frame for other components in the hinge mechanism, and for this reason, the swing arm 210 and the mounting base 110 can be ensured to be rotatably engaged in the circumferential direction of the rotating shaft 300 by sleeving the swing arm 210 on the rotating shaft 300.

Meanwhile, 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 synchronously rotate in the rotating process of the swing arm 210. Specifically, the swing arm 210 and the rotating shaft 300 can be formed in an integrated manner, so that the two can rotate synchronously; alternatively, the swing arm 210 and the rotating shaft 300 may be relatively fixed in the circumferential direction of the rotating shaft 300 by a key connection.

In addition, when the swing arm 210 rotates relative to the mounting base 110, in order to ensure that the swing arm 210 can drive the rotating base 410 to rotate through the supporting member 500, mechanisms which are matched with the supporting member 500 are further provided for the swing arm 210 and the rotating base 410 respectively. For the swing arm 210, specifically, the above-mentioned pressing portion 220 may be used, the swing arm 210 is provided with the pressing portion 220, the pressing portion 220 is provided with the driving inclined surface 221, the driving inclined surface 221 may be an inclined plane, or an inclined arc surface, and the distances between the start end and the tail end of the driving inclined surface 221 and the mounting seat 110 in the axial direction of the rotating shaft 300 are different, that is, when the top holder 500 is matched with different positions on the driving inclined surface 221, the relative position of the top holder 500 with respect to the mounting seat 110 in the axial direction of the rotating shaft 300 changes, and further when the swing arm 210 rotates with respect to the mounting seat 110, the driving inclined surface 221 may be used to drive the top holder 500 to move with respect to the mounting seat 110 along the axial direction of the rotating shaft 300.

For the rotary base 410, the rotary base 410 is provided with an engaging portion 421, and the rotary base 410 can be engaged with the holder 500 by using the engaging portion 421. Specifically, the holder 500 is movably mounted to the mounting seat 110 along the axial direction of the rotating shaft 300, and the holder 500 may be provided with a driving surface 521, so that the holder 500 is engaged with the engaging portion 421 by the driving surface 521. Similarly, the driving surface 521 is also an inclined surface, which is inclined with respect to the axial direction of the rotating shaft 300, so as to ensure that the top holder 500 can be engaged with the engaging portion 421 through the driving surface 521 during the axial movement of the mounting base 110 along the rotating shaft 300, and the rotating base 410 is driven to rotate.

Based on the above, one end of the supporting member 500 can abut against the pressing portion 220, and the other end of the supporting member 500 can abut against the matching portion 421, so that under the condition that the rotating shaft 300 and the swing arm 210 rotate synchronously, the pressing portion 220 can press the supporting member 500, under the condition that the supporting member 500 serves as an intermediate medium, the matching portion 421 can be pushed to drive the rotating base 410 to rotate, the first elastic resetting member 430 is pre-tightened, the first elastic resetting member 430 stores elastic potential energy, and meanwhile, under the condition that the rotating base 410 rotates, the rotating base 410 can drive the limiting member to compress the rotating shaft 300 so as to limit the rotation of the rotating shaft 300.

In addition, in order to ensure that the electronic device applying the hinge mechanism can be continuously turned over during the folding or unfolding process, the driving inclined surface 221 of the pressing portion 220 may be a reciprocating structure, that is, the pressing portion 220 is convexly disposed relative to the swing arm 210, and an end point of the pressing portion 220 closest to the mounting base 110 is taken as a boundary, a surface of the pressing portion 220 located on one side of the end point of the pressing portion 220 is the driving inclined surface 221, and a surface located on the other side of the end point of the pressing portion 220 is a reset surface, after the propping portion crosses the end point, the propping portion can be pressed against the reset surface under the action of the first elastic reset member 430, and the limiting member gradually releases the rotating shaft 300, thereby ensuring that the electronic device can be switched to the folding state (or switched to the unfolding state).

As described above, the purpose of positioning the supporting member 500 can be achieved by providing the positioning recess extending in the direction away from the mounting seat 110 at the end point of the pressing portion 220, so that one end of the supporting member 500 extends into the positioning recess of the pressing portion 220. Alternatively, a positioning recess may 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, thereby positioning the supporting member 500. For another example, a manner of increasing a friction force between an end point of the pressing portion 220 and the supporting member 500 may be further used to ensure that the swing arm 210 drives the rotating base 410 to rotate through the supporting member 500, and during the process of pressing the first elastic resetting member 430, the first elastic resetting member 430 may be stably in the pressed state, so that under the combined action of the first elastic resetting member 430 and the limiting member, the rotating base 410 is limited from continuing to rotate, and the rotating base 410 may be limited from automatically resetting (i.e., the rotating base 410 automatically rotates in the opposite direction to reset), so that an angle between two swing arms 210 in the hinge mechanism may be maintained at a specific value, and an electronic device formed by using the hinge mechanism may have a function, so that a display screen of the electronic device may be maintained in a non-unfolded state and a non-folded state, i.e., in a "half-unfolded" state.

In the case that the rotating base 410 needs to be rotated in the opposite direction and reset, the force can be continuously applied to the swing arm 210, so that the supporting member 500 can be moved out of the positioning recess on the pressing portion 220, and/or the matching portion 421 can be moved out of the positioning recess of the supporting member 500, and/or the friction between the supporting member 500 and the pressing portion 220 is overcome, and further the supporting member 500 can pass over the end point (or end surface) of the pressing portion 220 closest to the mounting base 110, so that the supporting member 500 does not provide any rotational driving force to the rotating base 410. Meanwhile, under the condition that the first elastic reset piece 430 is no longer driven by the supporting piece 500, the first elastic reset piece 430 can restore to deform under the action of elastic potential energy of the first elastic reset piece 430, and the driving rotary seat 410 rotates reversely relative to the mounting seat 110 to reset, accordingly, the rotating shaft 300 is no longer limited by the limiting piece, and the rotating capacity relative to the mounting seat 110 is restored, so that the rotating shaft 300 and the swing arm 210 can continue to rotate, and the electronic device is switched to the folded state or the unfolded state.

The embodiment of the application discloses a hinge mechanism, which can be applied to electronic equipment, so that two adjacent screen supporting parts in the electronic equipment have relative rotation capacity, and further the electronic equipment can be switched between a folded state and an unfolded state. In the hinge mechanism, a pressing portion 220 is disposed on a side of the swing arm 210 facing the mounting base 110, and the pressing portion 220 is configured to abut against one end of the supporting member 500, so that the supporting member 500 can be driven by the pressing portion 220 to move linearly along the rotation axis 300 of the swing arm 210 in the process of rotating the swing arm 210 relative to the mounting base 110. Meanwhile, the other end of the supporting member 500 abuts against the engaging portion 421 of the rotating base 410, so that when the supporting member 500 moves in the direction away from the swing arm 210 along the rotating shaft 300, the rotating base 410 can be pressed by the engaging portion 421 to rotate around the rotating shaft 300 relative to the mounting base 110; in addition, in the process of rotating the rotating base 410, the first elastic resetting member 430 may be pre-tightened, so that the first elastic resetting member 430 stores elastic potential energy, and the rotating base 410 may further drive the limiting member to act, so that a portion of the limiting member is connected to the mounting base 110, and another portion of the limiting member, which is movable relative to both the mounting base 110 and the rotating base 410, can clasp the rotating shaft 300, so as to limit the rotation of the rotating shaft 300.

Based on the above technical solution, in the working process of the hinge mechanism, when the top holder 500 is matched with the end point (or end surface) of the squeezing portion 220 closest to the mounting seat 110, the top holder 500 and the squeezing portion 220 can form a relatively stable matching relationship, so that each component of the hinge mechanism can be kept relatively still, the included angle between two adjacent swing arms 210 in the hinge mechanism in the direction perpendicular to the rotation axis 300 can be positioned at certain specific angles, and the hinge mechanism has hovering capability, so that the display screen of the electronic device formed by using the hinge mechanism can present a specific unfolding angle.

Meanwhile, in the hinge mechanism, since the acting direction of the first elastic resetting member 430 is the direction around the rotating shaft 300, the first elastic resetting member 430 can be arranged in the direction around the rotating shaft 300, so that the space occupied by the first elastic resetting member in the direction of the rotating shaft 300 is relatively small, and is only the width (or diameter) of the first elastic resetting member 430; moreover, the limiting element is located between the rotating shaft 300 and the rotating base 410, so that the limiting element does not additionally occupy the space in the axial direction of the rotating shaft 300, and therefore, the hinge mechanism disclosed in the embodiment of the present application can improve the space utilization efficiency of the electronic device.

As described above, one end of the supporting member 500 is configured to abut against the extruding portion 220, and the other end of the supporting member 500 is configured to abut against the matching portion 421, and more specifically, the supporting member 500 may include the rod 510, the driving protrusion 520 and the connecting portion 530, where the rod 510 is a component of the supporting member 500 configured to abut against and match with the extruding portion 220, the driving protrusion 520 is a component of the supporting member 500 configured to abut against and match with the matching portion 421, and the connecting portion 530 is a component configured to connect the rod 510 and the driving protrusion 520 into a whole, that is, the rod 510 is fixedly connected to the driving protrusion 520 through the connecting portion 530. Alternatively, the top bar 510, the driving protrusion 520 and the connecting portion 530 may be formed in an integrated manner, so as to improve the reliability of the overall structure of the supporting member 500. Of course, the top bar 510 and the driving protrusion 520 may be formed separately for convenience of processing.

As described above, the driving surface 521 may be provided on the end of the holder 500 abutting against the engaging portion 421, and when the holder 500 includes the driving projection 520, the driving surface 521 is provided on the driving projection 520. The driving surface 521 may be an inclined plane, and in a specific embodiment of the present application, the driving surface 521 is an inclined arc-shaped surface, which may reduce the size of the contact area when the driving surface 521 abuts against the matching portion 421, thereby reducing the friction force between the driving surface 521 and the matching portion, and reducing the driving difficulty of the driving surface 521.

Similarly, one end of the supporting member 500 is further in abutting engagement with the pressing portion 220, optionally, the end of the supporting member 500 in abutting engagement with the pressing portion 220 is provided with a pressed surface, and in the case that the supporting member 500 includes a push rod 510, the pressed surface is arranged on the push rod 510 and is used for abutting engagement with the pressing portion 220. In order to reduce the friction force between the pressed surface and the pressing portion 220, the pressed surface may be an arc surface or a spherical surface, so as to reduce the contact area between the pressed surface and the pressing portion 220, and reduce the difficulty of driving the supporting member 500.

The supporting member 500 is mounted on the mounting seat 110, and in the case that the supporting member 500 includes the push rod 510, the driving protrusion 520 and the connecting portion 530, the mounting seat 110 may be provided with a receiving groove 111 and a communicating groove 112, the receiving groove 111 communicates with the communicating groove 112, the receiving groove 111 communicates with a side surface of the mounting seat 110 facing the pressing portion 220, and the communicating groove 112 communicates with a side surface of the mounting seat 110. Specifically, the receiving groove 111 and the communicating groove 112 may be formed in the mounting seat 110 by drilling or cutting after the mounting seat 110 is molded, and in order to ensure that the push rod 510 can be engaged with the pressing portion 220, in order to facilitate the assembling work between the push holder 500 and the mounting seat 110, the communicating groove 112 may be extended to a side surface of the mounting seat 110 facing the pressing portion 220, so that the push rod 510 may be mounted into the receiving groove 111 from the side surface of the mounting seat 110 facing the pressing portion 220, and the connecting portion 530 may be mounted into the communicating groove 112.

Under the condition that adopts above-mentioned technical scheme, ejector pin 510 can be installed in holding tank 111, and makes ejector pin 510 can be in holding tank 111 along the axial activity of pivot 300 to utilize holding tank 111 to provide direction and limiting displacement for ejector pin 510, make the motion process of ejector pin 510 more stable. Connecting portion 530 is installed in the communicating groove 112, and makes drive lug 520 be located the outside of mount pad 110, reduces the cooperation degree of difficulty of drive lug 520 and cooperation portion 421, and under the effect of communicating groove 112 for connecting portion 530 can be as an organic whole with being located the inside ejector pin 510 of mount pad 110 and the drive lug 520 that is located mount pad 110 one side, makes ejector pin 510 can drive the axial motion of drive lug 520 along pivot 300.

In the above technical solution, the matching portion 421 may provide a supporting function for the supporting member 500, so that the top rod 510 of the supporting member 500 and the bottom of the receiving groove 111 are spaced from each other, and when the top rod 510 is pressed by the pressing 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 along with the top rod 510, and in this process, the driving protrusion 520 may apply a force to the matching portion 421, so as to drive the rotating base 410 to rotate relative to the mounting base 110 through the matching portion 421.

Correspondingly, when the push rod 510 is no longer extruded by the extruding part 220, the first elastic restoring piece 430 restores its own elastic deformation, so that the first elastic restoring piece 430 can drive the rotating seat 410 to rotate reversely to restore, in this process, the matching part 421 rotates along with the rotating seat 410 reversely, so that the matching part 421 can push the driving lug 520 to move towards the direction close to the swing arm 210 along the axial direction of the rotating shaft 300, and the push rod 510 of the pushing and holding piece 500 can always keep the abutting relation with the extruding part 220.

In another embodiment of the present application, in order to further ensure that the supporting member 500 can always form a supporting fit with the pressing portion 220, the supporting member 500 may further include a second elastic resetting member 540, the second elastic resetting member 540 is elastically disposed between the push rod 510 and the mounting base 110, and under the condition that the pressing portion 220 presses the supporting member 500 away from the swing arm 210, the second elastic resetting member 540 is pre-tightened, so that when the end point or the end surface of the pressing portion 220 closest to the mounting base 110 is fitted with the supporting member 500, the elastic potential energy of the second elastic resetting member 540 is maximized, and after the swing arm 210 is acted by an external force and the fit between the supporting member 500 and the pressing portion 220 is broken, the second elastic resetting member 540 can drive the push rod 510 to move in a direction close to the swing arm 210, and the push rod 510 always abuts against the surface of the pressing portion 220, thereby ensuring the resetting reliability of the supporting member 500, reducing the load of the first elastic resetting member 430, and ensuring that the rotating base 410 can reliably reset under the action of the first elastic resetting member 430.

More specifically, under the condition that the mount pad 110 is equipped with the holding tank 111, can make the second elasticity reset piece 540 set up in the holding tank 111, and make the ejector pin 510 deviate from the one end of extrusion portion 220 and the butt of the second elasticity reset piece 540 to utilize the holding tank 111 to provide spacing and guide effect for the second elasticity reset piece 540, promote the reliability and the stability of the second elasticity reset piece 540.

As described above, one part of the limiting member may be connected to the mounting base 110, and the other part of the limiting member may be movable relative to both the mounting base 110 and the rotating base 410, and the limiting base may be a single structural member, or the limiting member may be a structural assembly formed by multiple parts. In an embodiment of the present application, the position-limiting member includes a friction block 440, a connecting member 450, and a pin shaft 460, wherein the friction block 440 is a part of the position-limiting member for cooperating with the rotating shaft 300, and can provide a clasping effect for the rotating shaft 300 to limit the rotation of the rotating shaft 300; the connection member 450 is a member for transmitting a driving action between the rotary base 410 and the friction block 440, so that the driving action of the rotary base 410 is transmitted to the friction block 440 when the rotary base 410 rotates, and the friction block 440 moves relative to the rotating shaft 300; the pin shaft 460 is a component connecting the friction block 440 and the mounting base 110, so that the friction block 440 and the mounting base 110 can form a rotating fit relationship, and further when the friction block 440 is driven by the connecting piece 450, the pin shaft 460 can rotate relative to the mounting base 110 and move towards a direction close to the rotating shaft 300 to clasp the rotating shaft 300 and limit the rotation of the rotating shaft 300.

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

Of course, when the rotating base 410 is driven by the supporting member 500 to rotate, in order to ensure that the friction block 440 can move toward the direction close to the rotating shaft 300, one end of the connecting member 450 may be rotatably connected to the rotating base 410, and the other end of the connecting member 450 may be rotatably connected between two opposite ends of the friction block 440, so that when the rotating base 410 rotates, a driving force may 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 base 110 by using the pin shaft 460 as an axis, and press the rotating shaft 300, thereby limiting the rotation of the rotating shaft 300. Specifically, the connection member 450 may have a rod-shaped structure, and in order to improve the driving stability of the connection member 450, the connection member 450 may have an arc-shaped plate-shaped structure to provide a more uniform driving action for the friction block 440 in the axial direction of the rotating shaft 300. In addition, in order to stabilize the rotation fit relationship between the two opposite ends of the connecting member 450 and the rotating base 410 and the friction block 440, groove-shaped limiting structures may be disposed at corresponding positions on the rotating base 410 and the friction block 440, and cylindrical structures may be disposed at the two opposite ends of the connecting member 450 as "shafts", so that the "shafts" at the two opposite ends of the connecting member 450 and the groove-shaped limiting structures are correspondingly rotated and fitted, thereby improving the operation stability of the connecting member 450.

In order to further improve the clasped effect of the rotating shaft 300, optionally, the number of the limiting members is multiple, and the limiting members are spaced from each other along the circumferential direction of the rotating shaft 300, so as to prevent the limiting members from interfering with each other in the clasping process of the rotating shaft 300; meanwhile, the plurality of limiting parts are arranged around the rotating shaft 300, so that the rotating shaft 300 is held tightly at different positions, the limiting effect of each position in the circumferential direction of the rotating shaft 300 is the same or similar to the limiting effect of each position in the circumferential direction of the rotating shaft 300, and the purpose of improving the holding effect of the rotating shaft 300 is achieved. Specifically, the shape and size of the plurality of limiting members may be the same, so as to reduce the installation difficulty of the plurality of limiting members and improve the limiting effect of the plurality of limiting members on the rotating shaft 300. More specifically, each limiting member may include the friction block 440, the connecting member 450, and the pin shaft 460, so that each limiting member has a relatively good limiting effect.

As described above, the engaging portion 421 may be a columnar protrusion, and the supporting member 500 is abutted and engaged with the engaging portion 421, so that the supporting member 500 drives the rotating base 410 to rotate relative to the mounting base 110 through the engaging portion 421 by a sliding friction manner. In another embodiment of the present application, in order to further reduce the difficulty of driving the rotating base 410, the engaging portion 421 is provided with a roller 422, the roller 422 is installed in the engaging portion 421 in a rolling manner, and the roller 422 is in rolling engagement with the supporting member 500, so that the supporting member 500 is in rolling friction engagement with the roller 422 to achieve the purpose of driving the rotating base 410 to rotate, which can reduce the friction force applied to the supporting member 500, thereby improving the smoothness of rotation of the rotating base 410. More specifically, in the case that the supporting member 500 includes the driving protrusion 520, the driving protrusion 520 may be engaged with the roller 422 in a rolling manner, and the roller 422 may drive the rotating base 410 to rotate relative to the mounting base 110.

As described above, the first elastic reset piece 430 may be elastically disposed between the mounting base 110 and the rotating base 410 in various manners, and in a specific embodiment, a limiting groove 411 extending along the circumferential direction of the rotating shaft 300 is disposed on the rotating base 410, and in order to ensure that the first elastic reset piece 430 can provide an elastic reset function for the rotating base 410, the rotating base 410 may form a limiting fit relationship with the mounting base 110 in the circumferential direction of the rotating shaft 300 through the limiting shaft 470 fixed on the mounting base 110, and the first elastic reset piece 430 is elastically disposed between the limiting shaft 470 and an end wall of the limiting groove 411, so that the limiting groove 411 is utilized to provide an installation, a guiding and a limiting function for the first elastic reset piece 430, on one hand, an occupied space of components in the hinge mechanism is further reduced, and a space utilization rate inside the hinge mechanism is improved, and on the other hand, an action stability of the first elastic reset piece 430 can be improved.

Specifically, the limiting groove 411 may extend along the circumferential direction of the rotating shaft 300 on the rotating disk, so that the shape of the limiting groove 411 is adapted to the motion track of the rotating base 410, and the guiding and limiting functions of the limiting groove 411 are improved. The extension length of the limiting slot 411 is related to the natural length of the first elastic resetting piece 430, when the rotating base 410 is in an initial state, that is, the pressing portion 220 does not apply a pressing force to the supporting member 500 yet, and the fitting portion 421 is pressed, the limiting shaft 470 can be located at an end wall of one end of the limiting slot 411, and two opposite ends of the first elastic resetting piece 430 are respectively abutted between an end wall of the other end of the limiting slot 411 and the limiting shaft 470, so that in the process that the pressing portion 220 drives the fitting portion 421 to rotate the rotating base 410 through the supporting member 500, because the limiting shaft 470 is relatively fixed with the mounting base 110, along with the continuous rotation of the rotating base 410, the first elastic resetting piece 430 can be continuously pressed, and in the case that the supporting portion moves to an end point of the pressing portion 220, the elastic potential energy of the first elastic resetting piece 430 can be maximized, and accordingly, after the supporting portion crosses the end point of the pressing portion 220, the first elastic resetting piece 430 can restore the deformation under the elastic action of itself, and drive the rotating base to reversely rotate to reset.

In order to further improve the motion stability and reliability of the rotating base 410, optionally, the number of the limiting grooves 411, the limiting shafts 470 and the first elastic reset members 430 is plural, and the plural limiting grooves 411 are disposed on the rotating base 410 at intervals along the circumferential direction of the rotating shaft 300, and the plural limiting grooves 411, the plural limiting shafts 470 and the plural first elastic reset members 430 are in one-to-one correspondence fit, so that the plural first elastic reset members 430 dispersedly distributed on the rotating base 410 are used to provide a more stable and reliable reset effect for the rotating base 410, more specifically, the shapes and the sizes of the plural limiting grooves 411 are correspondingly the same, so as to reduce the installation difficulty of the first elastic reset members 430, and the plural limiting grooves 411 can be uniformly disposed along the circumferential direction of the rotating shaft 300, so as to provide a more uniform reset acting force for the rotating disc.

Based on the above embodiment, in the case that the limiting member includes the friction blocks 440, the number of the limiting grooves 411 may be equal to the number of the friction blocks 440, and the plurality of limiting grooves 411 correspond to the plurality of friction blocks 440 one to one, so as to further improve the limiting uniformity and reliability between the friction blocks 440 and the rotating shaft 300.

As described above, the mounting base 110 can be fixed to the base 900, so that the mounting base 110 cannot rotate along with the rotation shaft 300, and since the hinge mechanism is used to connect two adjacent screen supporting portions, and both the two screen supporting portions need to have rotation capability, for this reason, the number of the screen supporting portions corresponds to that of the rotation shaft 300, that is, the hinge mechanism connected between two adjacent screen supporting portions may include two rotation shafts 300, correspondingly, the number of the mounting base 110 may also be two, and the two mounting bases 110 and the two rotation shafts 300 are arranged in a one-to-one correspondence manner.

In more detail, the mounting seat 110, the swing arm 210, the rotating shaft 300, the clasping assembly 400 and the top holding member 500 all correspond to each other, and the two components may jointly form a hovering assembly to provide a hovering effect for the screen support. And, since the hinge mechanism includes two rotating shafts 300, for this reason, the hinge mechanism may include at least two sets of hovering components, the rotating shafts 300 of adjacent hovering components are distributed in a direction perpendicular to the axial direction of the rotating shafts 300, and the adjacent hovering components are respectively used to provide hovering action for the adjacent two screen supporting portions. Alternatively, in the axial direction of the rotating shaft 300, the size of the rotating shaft 300 may be the same as or similar to the size of the screen support, in this case, a plurality of swing arms 210, the clasping assembly 400, the holding member 500, and the like may be disposed on the same rotating shaft 300, and the plurality of swing arms 210 may be distributed at intervals along the axial direction of the rotating shaft 300, and the plurality of swing arms 210 are all connected to the same screen support; alternatively, a plurality of rotating shafts 300 may be provided and distributed at intervals along the axial direction of the rotating shaft 300, and the swing arm 210, the clasping assembly 400, the supporting member 500, and the like may be disposed on the plurality of rotating shafts 300 in a one-to-one correspondence, so that the plurality of hovering assemblies are correspondingly connected to the same screen supporting portion, thereby improving the operation stability of the screen supporting portion.

Based on the above embodiment, two adjacent mounting bases 110 in the same hinge mechanism can be fixedly connected through the bridging base 120, and the two mounting bases 110 are respectively matched with the two rotating shafts 300 in a one-to-one correspondence manner. In this case, the two mounting bases 110 can be fixedly connected to each other, and the mounting bases 110 will not rotate along with the rotating shaft 300 during the rotation of the rotating shaft 300.

As described above, two adjacent screen supporting portions connected by the hinge mechanism all have the ability of rotating relative to the mounting base 110, for this reason, the hinge mechanism disclosed in the embodiment of the present application may further include a synchronizing mechanism, the synchronizing 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 a direction perpendicular to the axial direction of the rotating shaft 300, the first gear and the second gear are engaged with each other, and the first gear and the second gear are respectively made to rotate along with the corresponding rotating shaft 300, in this case, two swing arms 210 respectively connected to two adjacent screen supporting portions may form a matching relationship of synchronous rotation, and further, in the case that a certain screen supporting portion rotates relative to the mounting base 110, the other screen supporting portion may be driven to rotate relative to the mounting base 110 by the synchronizing mechanism, so that two adjacent screen supporting portions form a synchronous rotation relationship, it is ensured that the bent angle at any position on the flexible screen is relatively small, and the service life of the flexible screen is prolonged.

Alternatively, gear teeth may be formed on the swing arms 210 respectively connected to the adjacent screen supporting portions, and the gear teeth of one of the adjacent swing arms 210 may form a synchronous meshing relationship with the gear teeth of the other through the first gear and the second gear, which may also form a synchronous relationship between the two adjacent swing arms 210 along a direction perpendicular to the axial direction of the rotation shaft 300, and may enable the first gear and the second gear not to occupy additional axial space of the rotation shaft 300, thereby improving the installation compactness of the components in the hinge mechanism. Accordingly, in order to ensure the motion stability of the first gear and the second gear, in the case that the hinge mechanism includes the above-mentioned bridge base 120, two shaft holes may be provided on the bridge base 120, and the wheel shafts of the first gear and the second gear are rotatably mounted in the two shaft holes, respectively, so as to improve the motion stability of the first gear and the second gear.

Based on the hinge mechanism disclosed in any one of the embodiments, the embodiment of the application further discloses an electronic device, and the electronic device comprises a plurality of screen supporting parts and any one of the hinge mechanisms. In the process of assembling the electronic device, any two adjacent screen supporting parts are connected with the swing arm 210 in the hinge mechanism, so that the two adjacent screen supporting parts can form a rotating fit relationship through the hinge mechanism.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A hinge mechanism is characterized by comprising a mounting seat (110), a swing arm (210), a rotating shaft (300), a holding component (400) and a jacking piece (500),

the clasping assembly (400) comprises a rotating seat (410), a matching part (421), a first elastic resetting piece (430) and a limiting piece, wherein the limiting piece 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 piece, the matching part (421) is fixedly arranged on the rotating seat (410), and the first elastic resetting piece (430) is elastically connected between the rotating seat (410) and the mounting seat (110); one part of the limiting piece is connected to the installation base (110), and the other part of the limiting piece is movable relative to the installation base (110) and the rotating base (410);

the swing arm (210) is sleeved on the rotating shaft (300), the rotating shaft (300) is rotatably connected with the mounting seat (110), the swing arm (210) is provided with an extrusion part (220), one end of the jacking piece (500) is abutted against the extrusion part (220), and the other end of the jacking piece (500) is abutted against the matching part (421);

under the synchronous pivoted condition of pivot (300) with swing arm (210), extrusion portion (220) extrusion top holder (500) to the promotion cooperation portion (421) drive roating seat (410) rotate the pretension first elasticity piece (430) that resets, just roating seat (410) drive the locating part compresses tightly pivot (300), in order to restrict the rotation of pivot (300).

2. A hinge mechanism according to claim 1, wherein the top holding member (500) comprises a top bar (510), a driving lug (520) and a connecting part (530), the top bar (510) is fixedly connected with the driving lug (520) through the connecting part (530), the top bar (510) abuts against the pressing part (220), and the driving lug (520) abuts against the matching part (421);

mounting seat (110) are equipped with holding tank (111) and intercommunication groove (112), holding tank (111) with intercommunication groove (112) intercommunication, holding tank (111) communicate in mounting seat (110) orientation one side surface of portion of squeezing (220), intercommunication groove (112) communicate in the side of mounting seat (110), ejector pin (510) are followed the axial movable mounting of pivot (300) in holding tank (111), connecting portion (530) install in intercommunication groove (112), drive lug (520) are located the outside of mounting seat (110).

3. A hinge mechanism according to claim 1, wherein the supporting member (500) comprises a push rod (510) and a second elastic restoring member (540), one end of the push rod (510) abuts against the pressing portion (220), the second elastic restoring member (540) is elastically arranged between the push rod (510) and the mounting base (110), and the second elastic restoring member (540) is pre-tensioned under the condition that the pressing portion (220) presses the supporting member (500) away from the swing arm (210).

4. A hinge mechanism according to claim 1, wherein the limiting member comprises a friction block (440), a connecting member (450) and a pin (460), one end of the friction block (440) is rotatably connected to the mounting base (110) through the pin (460), one end of the connecting member (450) is rotatably connected to the rotating base (410), and the other end of the connecting member (450) is rotatably connected between the two opposite ends of the friction block (440), so that when the rotating base (410) rotates, the friction block (440) is driven to rotate through the connecting member (450) to press the rotating shaft (300).

5. A hinge mechanism according to claim 1, wherein the number of the limiting members is plural, and the limiting members are spaced from each other in the circumferential direction of the rotation shaft (300) and arranged to surround the rotation shaft (300).

6. A hinge mechanism according to claim 1, wherein one end of the top holding member (500) is provided with a pressed surface which abuts against the pressing portion (220), the pressed surface being an arc-shaped surface or a spherical surface;

the other end of the jacking piece (500) is provided with a driving surface, the driving surface is abutted against the matching part, and the driving surface is obliquely extended in an arc shape relative to the axial direction of the rotating shaft (300).

7. A hinge mechanism according to claim 1, wherein the fitting portion (421) is provided with a roller (422), the roller (422) is rotatably mounted to the fitting portion (421), and the roller (422) is in rolling engagement with the jack member (500).

8. A hinge mechanism according to claim 1, wherein the rotary base (410) is provided with a limit groove (411) extending along the circumferential direction of the rotary shaft (300), the rotary base (410) is rotatably matched with the mounting base (110) in the circumferential direction of the rotary shaft (300) through a limit shaft (470) fixed on the mounting base (110), and the first elastic reset piece (430) is elastically arranged between the limit shaft (470) and the end wall of the limit groove (411);

the quantity of spacing groove (411), spacing axle (470) and first elasticity piece (430) that resets is a plurality of, and is a plurality of spacing groove (411) are followed the circumference interval of pivot (300) sets up in roating seat (410), and is a plurality of spacing groove (411), a plurality of spacing axle (470) and a plurality of first elasticity piece (430) one-to-one cooperation that resets.

9. A hinge mechanism according to claim 1, wherein the mounting seats (110), the swing arms (210), the rotation shafts (300), the clasping assemblies (400) and the top support (500) form a hovering assembly, the hinge mechanism comprises at least two groups of hovering assemblies, the rotation shafts (300) of adjacent hovering assemblies are distributed along a direction perpendicular to the axial direction of the rotation shafts (300), and the mounting seats (110) of adjacent hovering assemblies are fixedly connected by a bridging seat (120).

10. An electronic device, comprising a plurality of screen supports and a hinge mechanism according to any one of claims 1-9, any two adjacent screen supports being connected to the swing arm (210) in the hinge mechanism.