CN114658752A

CN114658752A - Hinge mechanism and electronic device

Info

Publication number: CN114658752A
Application number: CN202210397088.XA
Authority: CN
Inventors: 刘小勇; 高国峰; 付建辉
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-06-24
Anticipated expiration: 2042-04-15
Also published as: CN114658752B

Abstract

The application discloses hinge mechanism and electronic equipment, belongs to the field of communication equipment, and the hinge mechanism comprises a base, a mounting seat, a first rotating part, a second rotating part, a first connecting part, a second connecting part, a first synchronous swing arm, a second synchronous swing arm and an elastic part, wherein the hinge mechanism has a first state and a second state; and under the condition that the hinge mechanism is in the second state, the first connecting part and the second connecting part are both positioned on one side of the base towards the self screen supporting side.

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

In order to achieve both portability and a large display area, foldable electronic devices are becoming more popular among consumers. A hinge mechanism is generally provided in a foldable electronic device, and the hinge mechanism provides the foldable electronic device with a folding capability. Present foldable electronic equipment is mostly the formula structure of turning up, and display screen is located the outside when this kind of electronic equipment is in fold condition, leads to electronic equipment's display screen to take place to rub or collide etc. with external object easily, produces serious adverse effect to the life of display screen.

Disclosure of Invention

The embodiment of the application aims to provide a hinge mechanism and electronic equipment, and aims to solve the problem that when the existing electronic equipment is in a folded state, a display screen is easy to rub or collide with an external object, and serious adverse effects are generated on the service life of the display screen.

In a first aspect, an embodiment of the present application discloses a hinge mechanism, which includes a base, a mounting seat, a first rotating portion, a second rotating portion, a first connecting portion, a second connecting portion, a first synchronous swing arm, a second synchronous swing arm, and an elastic member,

the base is fixedly connected with the mounting seat, the base is an integrated structural member, the base comprises a base body, an extension part and a first positioning part, the first positioning part and the base body are arranged at intervals in the direction of the rotating axis of the first rotating part, and the first positioning part and the base body are fixedly connected through the extension part;

the number of the first rotating parts and the number of the second rotating parts are multiple, the first rotating parts are all arranged on the mounting seat, and the second rotating parts are in one-to-one corresponding rotating connection with the first rotating parts;

the first synchronous swing arm and the second synchronous swing arm are respectively connected with a base in a rotating mode through a first connecting rod and are in transmission connection, at least one of the second rotating parts and the first synchronous swing arm are linked with the first connecting part, and at least one of the second rotating parts and the second synchronous swing arm are linked with the second connecting part; the first synchronous swing arm and the elastic piece are arranged between the seat body and the first positioning part, and the elastic piece is connected with the first synchronous swing arm;

the first connecting part and the second connecting part are both used for being fixedly connected with a screen supporting part of the electronic equipment, the hinge mechanism has a first state and a second state, and under the condition that the hinge mechanism is in the first state, the first connecting part is positioned on one side of the base, and the second connecting part is positioned on the other side of the base; and under the condition that the hinge mechanism is in the second state, the first connecting part and the second connecting part are both positioned on one side of the base towards the self screen supporting side.

In a second aspect, an embodiment of the present application discloses an electronic device, which includes a display screen, a screen supporting portion and the above-mentioned hinge mechanism, the first connecting portion with the second connecting portion all are connected with the screen supporting portion, the display screen is located the screen supporting side of base in the hinge mechanism, the display screen support in the hinge mechanism and each on the screen supporting portion.

The embodiment of the application discloses the hinge mechanism, the first connecting part and the second connecting part of the hinge mechanism can be fixedly connected with the screen supporting part of the electronic equipment, so that the adjacent screen supporting parts can form a connection relation through the hinge mechanism. And the first connecting part can directly or indirectly form a rotating fit relation with the base through the first synchronous swing arm and the second rotating part, and the second connecting part directly or indirectly forms a rotating fit relation with the base through the second synchronous swing arm and at least one other second rotating part, so that when the adjacent screen supporting parts move relatively, the first connecting part and the second connecting part can also move relatively, and the electronic equipment has the unfolding and folding capabilities. Simultaneously, because the electronic equipment who utilizes above-mentioned hinge mechanism to form is interior folding type electronic equipment, and then under this electronic equipment is in the condition of fold condition for screen supporting part and hinge mechanism can provide the guard action for the display screen, prevent that the display screen from taking place friction or collision with external object, and this life that can promote the display screen among the electronic equipment.

In addition, in the hinge mechanism, the base is fixedly connected with the mounting seat, the base is an integrated structural part, and then in the process of assembling the base and the mounting seat, the base body, the extension part and the first positioning part of the base can form a fixed connection relation with the mounting seat, so that on one hand, the overall structure stability of the base can be provided, on the other hand, the forming and assembling difficulty of the base can be reduced, and connecting materials are saved.

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 view of a part of the structure in the hinge mechanism disclosed in the embodiment of the present application;

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

fig. 4 is an exploded schematic view of a hinge mechanism disclosed in an embodiment of the present application.

Description of reference numerals:

100-base, 110-base, 130-extension, 151-first positioning portion, 152-second positioning portion, 171-limiting member, 172-first limiting protrusion,

210-a first connecting part, 211-a sliding groove, 220-a second connecting part, 230-a second rotating part, 240-a second hinge part,

310-floating support part, 320-mounting seat, 330-first rotating part,

410-a first synchronous swing arm, 411-a synchronous arm, 412-a sliding seat, 420-a second synchronous swing arm, 431-a first gear, 432-a second gear, 433-a third gear, 434-a fourth gear, 441-a second limit bulge, 451-a pin shaft,

500-an elastic member,

610-supporting plate, 620-sliding sleeve, 630-first hinge part,

710-first link, 720-second link, 730-detachable positioning part, 740-blocking piece.

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 are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a 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 "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

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

As shown in fig. 1 to 4, an embodiment of the present application discloses a hinge mechanism, which can be applied to an electronic device to enable the electronic device to have a folding capability. Electronic devices typically include a display screen and a screen support portion that provides a mounting base for the display screen and may provide support for the display screen. The number of the screen supporting parts is plural, and specifically may be two, three or more, for convenience of understanding, the following description and the electronic device including two screen supporting parts are taken as examples, and the specific structure, the working state and the like of the electronic device are described, as for the embodiment where the number of the screen supporting parts is more, those skilled in the art can correspondingly expand according to the technical idea of the present application, and the detailed description is omitted here.

The two screen supporting parts are connected through the hinge mechanism, and under the action of the hinge mechanism, the two screen supporting parts have relative movement capacity, so that the electronic equipment can be switched between a folded state and an unfolded state.

Under the condition that the electronic equipment is in a folded state, the two screen supporting parts are stacked and oppositely arranged, and the display screen is positioned between the two screen supporting parts. Of course, the two screen supporting portions may be parallel to each other, or an acute angle with a relatively small value may exist between the two screen supporting portions.

When the electronic device is in the unfolded state, the display surface of the display screen is a plane, and the two screen supporting parts are in a substantially coplanar state. Of course, considering the influence of factors such as the processing precision and the property of the display screen itself, the display surface of the display screen in the unfolded state may not be an absolute plane structure, and some positions of the display surface in the display screen may have some bending deformation, and in this case, the display screen (or the electronic device) may also be considered to be in the unfolded state.

As described above, during the use of the electronic device, the display screen may deform along with the relative movement of the screen support portion, and then, at least a portion of the display screen is of a flexible structure. Specifically, the display screen may include a first display portion, a second display portion, and a third display portion, and the first display portion and the second display portion are connected through the third display portion, so that the first display portion, the second display portion, and the third display portion are connected as a whole. Optionally, the first display part and the second display part are hard screens to prolong the service lives of the first display part and the second display part, the third display part is a flexible screen, the position of the third display part corresponds to the position of the hinge mechanism, and the third display part is guaranteed not to obstruct normal bending and unfolding actions of the hinge mechanism. In another embodiment of the application, the display screen can be wholly flexible, and this can also guarantee that the display screen possesses the ability of warping along with the action of the hinge mechanism, and can promote the uniformity of display screen, and then promote the display effect of display screen.

As shown in fig. 1 to 4, a hinge mechanism disclosed in an embodiment of the present application includes a base 100, a mount 320, a first rotating portion 330, a second rotating portion 230, a first connecting portion 210, a second connecting portion 220, a first synchronization swing arm 410, a second synchronization swing arm 420, and an elastic member 500.

The first connecting portion 210 and the second connecting portion 220 are both used for being fixedly connected with a screen supporting portion of the electronic device, so that adjacent screen supporting portions in the electronic device can form a connection relationship with the hinge mechanism, and further the adjacent screen supporting portions can move relatively by using the hinge mechanism. Specifically, each of the first and

second connection parts

210 and 220 may be fixedly connected to the corresponding screen support part using screws or the like. As for the actual structure, size and the like of the first connecting portion 210 and the second connecting portion 220, they may be determined according to the actual shape and size of other components such as a screen supporting portion in the electronic device, and are not limited herein.

Optionally, the number of the first connecting portion 210 and the second connecting portion 220 is one, and the first connecting portion and the second connecting portion are respectively located on two opposite sides of the whole hinge mechanism to be respectively connected with the corresponding screen supporting portions. In another embodiment of the present application, optionally, as shown in fig. 1, the number of the first connection portions 210 and the number of the second connection portions 220 may be multiple, the multiple first connection portions 210 are distributed on one side of the whole hinge mechanism, and the multiple first connection portions 210 are distributed along a direction with a larger size in the whole hinge mechanism, which may be specifically a length direction of the hinge mechanism, and also a direction in which a rotation axis of the first rotation portion 330 (or the first synchronization swing arm 410) in the hinge mechanism is located, which is specifically a direction a in fig. 1. Correspondingly, the plurality of second connecting portions 220 are uniformly distributed on the other side of the whole hinge mechanism, and the plurality of second connecting portions 220 are distributed along the length direction of the whole hinge mechanism. The plurality of first connecting portions 210 and the plurality of second connecting portions 220 are all fixedly connected with corresponding screen supporting portions in the electronic device, so that the connection reliability and the stress stability between the adjacent screen supporting portions are improved.

The base 100 is fixedly connected with the mounting seat 320, and specifically, the base 100 and the mounting seat 320 may form a detachable connection relationship through a screw member or the like, so as to facilitate subsequent maintenance work of the hinge mechanism on the one hand, and facilitate assembly work between other components in the hinge mechanism, such as the second rotating portion 230, and the mounting seat 320 on the other hand. The specific structure of the mounting seat 320 can be determined according to the structure and size of other components in the hinge mechanism, and is not limited herein.

Base 100 and mount 320 are the basic parts of the overall hinge mechanism, and other structures in the hinge mechanism may be mounted directly or indirectly to base 100 and mount 320 to form a connecting relationship with base 100 and mount 320. In addition, many of the components or structures of the hinge mechanism are symmetrically disposed, and like the first rotating portion 330, the number of the first rotating portions 330 is plural, and the plural first rotating portions 330 are all disposed on the mounting base 320. After eliminating the influence of the factors such as the position, as shown in fig. 4, the plurality of first rotating portions 330 include two first rotating portions 330 symmetrically disposed in the structure, one of the two first rotating portions 330 is configured to cooperate with the first connecting portion 210, and the other one of the two first rotating portions 330 is configured to cooperate with the second connecting portion 220.

Similarly, the number of the second rotating portions 230 is also plural, and the plural second rotating portions 230 are matched with the plural first rotating portions 330 in a one-to-one correspondence. The second rotating portions 230 include two second rotating portions 230 and two first rotating portions 330 that are symmetrical to each other in the above structure, and are in one-to-one correspondence, and form a rotating connection relationship, and one of the two second rotating portions 230 is connected to the first connecting portion 210, and the other is connected to the second connecting portion 220.

As described above, the first rotating portion 330 and the second rotating portion 230 are engaged with each other with a rotation engagement relationship formed therebetween. Specifically, the two structures can be combined by structures with rotation axes such as arc-shaped structural members and the like positioned outside the two structures, so that the sizes of the base 100 and the whole hinge mechanism can be reduced, and the complexity of the base 100 is reduced. Under the condition that the first rotating portion 330 and the second rotating portion 230 adopt the structure, because the first rotating portion 330 is disposed on the mounting seat 320, and the mounting seat 320 is fixedly connected with the base 100, the base 100 and the mounting seat 320 can be utilized to provide a limiting effect in the direction perpendicular to the rotating axis for the second rotating portion 230, and the rotating fit relationship between the second rotating portion 230 and the first rotating portion 330 is ensured to be stable.

As described above, at least one of the plurality of second rotating portions 230 is connected to the first connecting portion 210, and forms an interlocking relationship; at least one other of the second rotating portions 230 is connected to the second connecting portion 220, and the two form an interlocking relationship. By using the first rotating part 330 and the second rotating part 230 which are rotatably matched, the base 100 and the mounting base 320 can connect two adjacent screen supporting parts together, and when the first connecting part 210 and the second connecting part 220 move relatively, the corresponding second rotating part 230 can be driven to rotate relative to the first rotating part 330.

Meanwhile, as shown in fig. 1, the first synchronous swing arm 410 is connected with the first connection portion 210, and the two form a linkage relationship; the second synchronous swing arm 420 is connected to the second connecting portion 220, and the second synchronous swing arm 420 and the second connecting portion 220 form a linkage relationship, so that when the first connecting portion 210 and the second connecting portion 220 move relatively, the first synchronous swing arm 410 and the second synchronous swing arm 420 can be driven to rotate relatively. Furthermore, since the first and second

synchronizing swing arms

410 and 420 are in transmission connection, when a force is applied to only one of the first and second connecting

portions

210 and 220, the first and second connecting

portions

210 and 220 can synchronously rotate with respect to the base 100 under the transmission action of the first and second

synchronizing swing arms

410 and 420.

Specifically, the first synchronization swing arm 410 and the second synchronization swing arm 420 may be in a transmission connection via a meshing gear, or may be in a transmission connection via another transmission. Moreover, in order to ensure that the first synchronization swing arm 410 and the second synchronization swing arm 420 can form a stable transmission matching relationship, the first synchronization swing arm 410 and the second synchronization swing arm 420 can both form a rotation matching relationship with the base 100 through the first link 710, and further, when the first synchronization swing arm 410 rotates relative to the base 100, the first synchronization swing arm 410 can be ensured to stably drive the second synchronization swing arm 420 to rotate relative to the base 100. Specifically, the first and second

synchronizing swing arms

410 and 420 may each form a stable rotation-fitting relationship with the base 100 by means of the first links 710, and the two first links 710 are spaced apart from each other in a direction perpendicular to the rotation axis. In the circumferential direction of the rotation axis of the first rotating portion 330, the first and second

synchronous swing arms

410 and 420 may be in a rotating fit relationship with the corresponding first connecting rods 710, or each of the first connecting rods 710 may also be in a rotating fit relationship with the base 100.

Optionally, a fixed connection relationship may be formed between the second rotating portion 230 and the first connecting portion 210 (or the second connecting portion 220), so that the first connecting portion 210 (or the second connecting portion 220) can drive the second rotating portion 230 to rotate relative to the first rotating portion 330. Alternatively, as shown in fig. 3, the second rotating portion 230 and the first connecting portion 210 (or the second connecting portion 220) may be connected through a shaft hole-like structure, and as shown in fig. 1, the first connecting portion 210 (or the second connecting portion 220) and the second rotating portion 230 may be connected through a second link 720. In this case, the first connecting portion 210 (or the second connecting portion 220) can not only drive the second rotating portion 230 to move relative to the first rotating portion 330, but also enable the first connecting portion 210 (or the second connecting portion 220) to rotate relative to the second rotating portion 230, thereby expanding a rotation range between the first connecting portion 210 and the second connecting portion 220 to provide an avoiding space for the display screen. In the actual design process of the hinge mechanism, the connection relationship between the first connection portion 210 (or the second connection portion 220) and the second rotation portion 230 may be determined correspondingly as the case may be.

Under the condition that the first connecting portion 210 and the second connecting portion 220 are both in the rotating fit relationship with the base 100 and the mounting base 320 through the second rotating portion 230, since the rotating axis of the second rotating portion 230 is not located on the base 100 and the mounting base 320, when the first synchronizing swing arm 410 and the second synchronizing swing arm 420 are both rotatably connected to the base 100 through the first connecting rod 710, the relative displacement is generated between the first synchronizing swing arm 410 and the first connecting portion 210 and between the second synchronizing swing arm 420 and the second connecting portion 220 along with the change of the form of the hinge mechanism, and then, the sliding fit relationship is formed between the first synchronizing swing arm 410 and the first connecting portion 210 and between the second synchronizing swing arm 420 and the second connecting portion 220 through the sliding combination structure. The sliding assembly structure may specifically include a sliding seat 412 and a sliding groove 211, optionally, the sliding groove 211 may be disposed on the first connecting portion 210, and the first synchronization swing arm 410 may include the sliding seat 412, so that the first synchronization swing arm 410 and the first connecting portion 210 form a sliding fit relationship. Correspondingly, the second synchronous swing arm 420 and the second connecting portion 220 can also form a sliding fit relationship through the sliding combination structure.

The base 100 can be formed by a hard material such as metal or plastic, as shown in fig. 2, the base 100 includes a base body 110, an extending portion 130, and a first positioning portion 151, wherein the base body 110 is a main body of the base 100, the first positioning portion 151 is used for providing a positioning function for the elastic member 500, and the first positioning portion 151 and the base body 110 are disposed at an interval in a direction of a rotation axis of the first rotating portion 330 to provide a receiving space for the first synchronous swing arm 410 and the elastic member 500, and the first positioning portion 151 and the base body 110 are fixedly connected through the extending portion 130, so that the base body 110 and the first positioning portion 151 can form a relatively fixed relationship.

Moreover, the base 100 is an integrated structure, and may be formed by injection molding or metal casting, which may reduce the processing of the base 100, reduce the number of connectors during the process of assembling the base 100 and other structures, and improve the overall structural strength of the base 100.

In the process of assembling the hinge mechanism, the first synchronization swing arm 410 and the elastic member 500 are both disposed between the base 110 and the first positioning portion 151, and the first synchronization swing arm 410 is connected to the elastic member 500, so that the first synchronization swing arm 410 and the base 100 form a press fit relationship in the direction of the rotation axis of the first rotating portion 330 by using the elastic member 500, and further the autonomous rotation of the first synchronization swing arm 410 is limited, and the hinge mechanism has a damping feeling.

Specifically, the elastic member 500 and the first synchronization swing arm 410 may be directly connected, such as abutted connection or fixed connection, or indirectly connected through another structural member, so that the elastic force of the elastic member 500 can act on the first synchronization swing arm 410. By enabling the elastic member 500 to be always in a squeezed state or a stretched state, the first synchronous swing arm 410 can be squeezed on the base 100 no matter what unfolding angle the hinge mechanism is in, and the first synchronous swing arm 410 has a damping feeling all the time; or, other structural members may be additionally arranged, and when the hinge mechanism is in a certain angle range, the first synchronization swing arm 410 and the base 100 are mutually extruded, and when the hinge mechanism is in other angle ranges, the mutual extrusion between the first synchronization swing arm 410 and the base 100 is basically avoided.

The hinge mechanism of the structure has at least two states, namely a first state and a second state when working, wherein the first state corresponds to the unfolding state of the electronic equipment, and the second state corresponds to the folding state of the electronic equipment.

When the hinge mechanism is in the first state, the first connecting portion 210 is located on one side of the base 100, and the second connecting portion 220 is located on the other side of the base 100, so that the hinge mechanism is in an unfolded state as a whole, and the screen supporting portions connected by the hinge mechanism are ensured to be in a substantially coplanar state while providing a supporting effect for the middle portion of the display screen, and provide a supporting effect for the two side portions of the display screen respectively.

In the case where the hinge mechanism is in the second state, the first connecting portion 210 and the second connecting portion 220 are both located on the side of the base 100 facing the self-screen supporting side, as described above, the base 100 is a basic portion of the hinge mechanism and is located substantially in the middle of the hinge mechanism, so that the base 100 has the capability of providing a supporting function for the display screen and the display screen is directly or indirectly supported on the base 100. In addition, the mounting base 320 is also located at a side of the base 100 where the screen supporting side is located, and the specific structure of the mounting base 320 is designed, so that the mounting base 320 has the capability of supporting the screen, and it is ensured that the hinge mechanism can reliably provide a supporting function for the display screen as much as possible.

Correspondingly, the screen supporting parts are also provided with screen supporting sides, and under the condition that the hinge mechanism is in the second state, the screen supporting sides of the screen supporting parts are all positioned at the screen supporting side of the base 100, namely, the display screen and the screen supporting parts are both positioned at the same side of the base 100, so that the display screen is integrally wrapped by the screen supporting parts and the hinge mechanism to form the inward folding electronic equipment.

The embodiment of the application discloses a hinge mechanism, wherein a first connecting part 210 and a second connecting part 220 of the hinge mechanism can be fixedly connected with a screen supporting part of an electronic device, so that adjacent screen supporting parts can form a connection relation through the hinge mechanism. Moreover, the first connecting portion 210 can directly or indirectly form a rotation fit relationship with the base 100 through the first synchronization swing arm 410 and the second rotation portion 230, and the second connecting portion 220 directly or indirectly forms a rotation fit relationship with the base 100 through the second synchronization swing arm 420 and at least another second rotation portion 230, so that when adjacent screen supporting portions move relatively, the first connecting portion 210 and the second connecting portion 220 can also move relatively, and the electronic device has the capability of unfolding and folding. Simultaneously, because the electronic equipment that utilizes above-mentioned hinge mechanism to form is infolding formula electronic equipment, and then is in under the condition of fold condition at this electronic equipment for screen supporting part and hinge mechanism can provide the guard action for the display screen, prevent that the display screen from taking place friction or collision with external object, and this life that can promote display screen among the electronic equipment.

In addition, in the above hinge mechanism, the base 100 is fixedly connected to the mounting base 320, and the base 100 is an integrated structure, so that in the process of assembling the base 100 and the mounting base 320, the base body 110, the extending portion 130 and the first positioning portion 151 of the base 100 can form a fixed connection relationship with the mounting base 320, on one hand, the overall structural stability of the base 100 can be provided, on the other hand, the forming and assembling difficulty of the base 100 can be reduced, and the connecting materials can be saved.

As described above, the first and second

synchronization swing arms

410 and 420 may form a transmission connection relationship by meshing teeth, that is, the first and second

synchronization swing arms

410 and 420 are provided with meshing teeth, and they may be directly combined by respective meshing teeth to form a transmission matching relationship.

In order to reduce the pitch circle diameters of the meshing teeth of the first and second

synchronizing swing arms

410 and 420, in another embodiment of the present application, as shown in fig. 2, the hinge mechanism may further include a first gear 431 and a second gear 432 that mesh with each other, and then the first gear 431 and the second gear 432 may be used to provide a bridging effect for the transmission connection relationship between the first and second

synchronizing swing arms

410 and 420, so as to reduce the pitch circle diameters of the meshing teeth of the first and second

synchronizing swing arms

410 and 420, and further reduce the size of the corresponding part structures on the first and second

synchronizing swing arms

410 and 420, and reduce the size of the hinge mechanism in a direction perpendicular to the rotation axis of the first rotating part 330.

Of course, in order to ensure the motion stability of the first gear 431 and the second gear 432, a gear shaft (not shown) may be provided to each of the first gear 431 and the second gear 432, and the gear shaft may be mounted on the base 100 to provide a supporting function for the first gear 431 and the second gear 432. Accordingly, a rotational fit relationship is required to be formed between one of the first gear 431 and the base 100 and the gear shaft, and a rotational fit relationship is also required to be formed between the gear shaft corresponding to the second gear 432 and the base 100 or the second gear 432.

In the present embodiment, the outer circumferential walls of the first and second

synchronizing swing arms

410 and 420 may be processed to form the engaging teeth. In another embodiment of the present application, a mating gear may be further mounted on the first connecting rod 710, and the mating gear and the first synchronous swing arm 410 are relatively fixed in the circumferential direction of the rotation axis, so as to drive the mating gear to rotate during the rotation of the first synchronous swing arm 410. The first synchronous swing arm 410 can also be in transmission connection with the first gear 431 through the transmission connection of the matching gear and the first gear 431.

Under the condition of adopting the technical scheme, the gear standard component can be directly used as the meshing teeth of the first synchronous swing arm 410, so that the meshing teeth do not need to be additionally processed on the peripheral wall of the first synchronous swing arm 410, and the overall processing difficulty of the hinge mechanism can be greatly reduced. Similarly, the second synchronization swing arm 420 may also be provided with a mating gear, and the mating gear is engaged with the second gear 432, so that the second synchronization swing arm 420 may also be in transmission connection with the second gear 432 through the mating gear.

In the above embodiment, taking the first synchronous swing arm 410 and the corresponding mating gear as an example, the two can form a relative fixed relationship in the circumferential direction of the rotation axis by welding. Considering the later maintenance of the hinge mechanism, the first synchronization swing arm 410 and the corresponding first link 710 may be relatively fixed in the circumferential direction of the rotation axis of the first rotation portion 330, and the mating gear and the first link 710 may also be relatively fixed in the aforementioned direction. In this case, it is ensured that the first synchronous swing arm 410 can be brought into a relatively fixed relationship with the mating gear in the aforementioned circumferential direction by the first link 710. Similarly, the second synchronous swing arm 420 and the corresponding mating gear can also form a relatively fixed relationship in the circumferential direction by using the above technical solution.

In the above embodiment, the first link 710 rotates with the first synchronization swing arm 410 relative to the base 100, and the first link 710 and the first synchronization swing arm 410 can be engaged with each other through a key connection. In the process of assembling the first connecting rod 710 and the base 110, a blind hole may be formed on the base 110, and the first connecting rod 710 passes through the first positioning portion 151 from a side of the first positioning portion 151 departing from the base 110 and is inserted into the blind hole of the base 110. Meanwhile, the detachable positioning member 730 is utilized to make the end of the first link 710 departing from the base 110 and the first positioning portion 151 form a limit fitting relationship, so that the first link 710 and the entire base 100 form a relatively fixed relationship in the direction of the rotation axis of the first rotating portion 330.

In another embodiment of the present application, optionally, the base 100 further includes a second positioning portion 152, the second positioning portion 152 is fixed to the extending portion 130, the second positioning portion 152 is located between the base body 110 and the first positioning portion 151, and the second positioning portion 152 and the base body 110 are arranged at an interval, which can form a space between the base body 110 and the second positioning portion 152, and the space can be utilized to facilitate an assembling process between the first link 710 and the base body 110. The distance between the second positioning portion 152 and the base 110 can be determined according to the specific size of the device to be mounted, such as the third gear 433 or the detachable positioning member 730, and is not limited herein.

In the case where the base 100 includes the second positioning part 152, as shown in fig. 2, the first synchronization swing arm 410 is disposed between the first positioning part 151 and the second positioning part 152, thereby utilizing a space between the first positioning part 151 and the second positioning part 152 as an accommodating space of the first synchronization swing arm 410. Similarly, the elastic member 500 may also be disposed between the first positioning portion 151 and the second positioning portion 152 along with the first synchronous swing arm 410.

As described above, the first and second

synchronizing swing arms

410 and 420 may be provided with mating gears, and the first and

second gears

431 and 432 may be in a transmission-fit relationship with the mating gears. Specifically, the engaging gear provided at one end of the first link 710 engaged with the first synchronizing swing arm 410 may be specifically the third gear 433, and the engaging gear provided at one end of the first link 710 engaged with the second synchronizing swing arm 420 may be specifically the fourth gear 434. Considering that the first synchronization swing arm 410 and the second synchronization swing arm 420 have a substantially symmetrical structure, the first synchronization swing arm 410 will be described below. The third gear 433, the first link 710 and the first synchronous swing arm 410 are relatively fixed in the circumferential direction of the rotation axis, so that the third gear 433 and the first synchronous swing arm 410 can synchronously rotate.

As described above, the base 100 may include the second positioning part 152, in which case the third gear 433 may be detachably connected to the first link 710, and the third gear 433 may be installed at an area between the second positioning part 152 and the housing 110. After the first link 710 passes through the first positioning portion 151 and the second positioning portion 152, the first link 710 and the third gear 433 form a matching relationship, and the first link 710 and the third gear 433 form a relatively fixed relationship in the circumferential direction of the rotation axis of the first rotating portion 330 by using a key connection manner, so as to ensure that the first link 710 can drive the third gear 433 to rotate.

In another embodiment of the present application, as shown in fig. 4, the third gear 433 and the first link 710 are an integrated structure, in this case, the connection reliability between the third gear 433 and the first link 710 can be improved, and thus the stability of the linkage process between the first link 710 and the third gear 433 can be ensured. In this embodiment, the third gear 433 may be located at a side of the first positioning portion 151 departing from the first synchronization swing arm 410, that is, in the process of assembling the first link 710 and the base 100, an end of the first link 710 departing from the third gear 433 may pass through the first positioning portion 151 and the second positioning portion 152 until the third gear 433 and the first positioning portion 151 are mutually limited.

Correspondingly, a detachable positioning member 730 may be disposed between the second positioning portion 152 and the base 110, so that the second positioning portion 152 can be relatively fixed in the direction of the rotation axis through the detachable positioning member 730 and the first link 710. The detachable positioning member 730 may specifically be an open type clamping member, and after the end of the first connecting rod 710 departing from the third gear 433 passes through the first positioning portion 151 and the second positioning portion 152, the clamping member may be clamped at the end of the first connecting rod 710 departing from the third gear 433, so that the first connecting rod 710 and the base 100 form a relatively fixed relationship in the direction of the rotation axis.

More specifically, as shown in fig. 2, a blocking piece 740 may be disposed on a side of the first gear 431 facing away from the first positioning portion 151, and an end of the first link 710 where the third gear 433 is located may pass through the blocking piece 740, and the aforementioned engaging member is engaged with a portion of the first link 710 located on a side of the blocking piece 740 facing away from the first positioning portion 151, so that the first gear 431 and the second gear 432 can be limited between the first positioning portion 151 and the blocking piece 740, and the movement stability of the first gear 431 and the second gear 432 is further improved.

As described above, the elastic member 500 is disposed between the first positioning portion 151 and the base body 110 to provide a damping feeling to the first synchronous swing arm 410. In one embodiment of the present application, the elastic member 500 is optionally in a stretched or compressed state to press the first synchronization swing arm 410 and the surface of the base 100, which is in contact with the first synchronization swing arm 410. In this embodiment, the surface of the base 100 attached to the first synchronous swing arm 410 may be the surface of the first positioning portion 151, or may be the surface of the base body 110. That is, the elastic member 500 may be disposed between the first synchronization swing arm 410 and the first positioning portion 151, and the elastic member 500 may also be disposed between the first synchronization swing arm 410 and the base 110. In addition, the ends of the elastic member 500 may be specifically formed in an abutting fit relationship during the process of being fitted with other components (including at least two of the seat body 110, the first synchronization swing arm 410 and the first positioning portion 151), or may also be formed in a fixed connection relationship, which allows the elastic member 500 to be provided with various combinations of arrangement positions and connection forms, which are not described one by one herein.

One specific implementation manner is that the elastic member 500 can abut against between the first synchronization swing arm 410 and the first positioning portion 151, in this case, the elastic member 500 can be in a compressed state all the time, and then an end surface of the first synchronization swing arm 410 away from the first positioning portion 151 can form a stable extrusion fit relationship with an end surface of the base body 110 facing the first synchronization swing arm 410, and then in the working process of the hinge mechanism, the elastic member 500 is utilized to enable the first synchronization swing arm 410 and the base body 110 to be in a damping state all the time. Furthermore, after the electronic equipment is formed by the hinge mechanism, the electronic equipment can hover at any angle between the unfolding state and the folding state, and convenience is provided for different requirements of users.

In addition, in the above-described embodiment, the base 100 may further include the second positioning portion 152, in which case, an end surface of the first synchronization swing arm 410 facing away from the first positioning portion 151 may be in press-fit relationship with an end surface of the second positioning portion 152 facing toward the first synchronization swing arm 410.

In another embodiment of the present application, optionally, as shown in fig. 2, the hinge mechanism may further include a limiting member 171, and the limiting member 171 is disposed between the base 110 and the first positioning portion 151; further, the limiting member 171 is provided with a plurality of first limiting protrusions 172 spaced apart from each other in the circumferential direction of the rotation axis (i.e., in the direction around the rotation axis) at one end facing the first synchronization swing arm 410, and correspondingly, the first synchronization swing arm 410 is provided with a plurality of second limiting protrusions 441 spaced apart from each other in the circumferential direction of the rotation axis at one end facing the limiting member 171.

Any one of the first limiting protrusions 172 of the plurality of first limiting protrusions 172 can be clamped in a gap between any two adjacent ones of the plurality of second limiting protrusions 441, and any one of the second limiting protrusions 441 of the plurality of second limiting protrusions 441 can be clamped in a gap between any two adjacent ones of the plurality of first limiting protrusions 172, so that in the process that the first synchronization swing arm 410 and the limiting member 171 relatively rotate along the circumferential direction of the rotation axis, through the first limiting protrusions 172 and the second limiting protrusions 441, not only the limiting member 171 and the first synchronization swing arm 410 can be in rotating fit in the circumferential direction of the rotation axis, but also the limiting member 171 and the first synchronization swing arm 410 can be in movable fit in the direction of the rotation axis, and the movable fit is specifically in a reciprocating motion along the direction of the rotation axis.

In the above embodiment, one of the limiting member 171 and the first synchronizing swing arm 410 may be connected to one end of the elastic member 500, and one of the base 110 and the first positioning portion 151 may be connected to the other end of the elastic member 500, and according to the specific situation of the components connected to the elastic member 500, the compression or tension state of the elastic member 500 is set correspondingly, that is, the limiting member 171 and the first synchronizing swing arm 410 may be in a compressed state in the direction of the rotation axis of the first rotating portion 330. In a specific embodiment, as shown in fig. 2, the first synchronous swing arm 410 is located between the base 110 and the limiting member 171, and opposite ends of the elastic member 500 respectively abut against between the limiting member 171 and the first positioning portion 151.

More specifically, in the matching state that the first limiting protrusion 172 is located between two adjacent second limiting protrusions 441, and two opposite sides of the first limiting protrusion 172 are respectively contacted with the two second limiting protrusions 441 on the two opposite sides, the elastic member 500 can be in a natural state. Meanwhile, in any state other than the above-mentioned fitting state, the elastic member 500 may be in a stretched or squeezed state, so as to ensure that the elastic member 500 has a tendency of making the first limiting protrusion 172 and the second limiting protrusion 441 in the above-mentioned fitting state and a tendency of tending to transition to the above-mentioned fitting state.

With the above-described technical solution, if the first synchronous swing arm 410 and the limiting member 171 are not subjected to an external force, the hinge mechanism can be stably placed in a state of at least one specific angle. Certainly, in the process of designing the specific structures of the first limiting protrusion 172 and the second limiting protrusion 441, it is further required to ensure that when the hinge mechanism is in the unfolding state and the folding state, the first limiting protrusion 172 and the second limiting protrusion 441 can be in the aforementioned matching state, so that the hinge mechanism can stably hover at least another angle between the unfolding state, the folding state and the aforementioned two states, so as to expand the use scene of the electronic device and improve the user experience.

As mentioned above, the display screen may be an integral structure, and the electronic device includes the screen supporting portion, and under the supporting and fixing action of the two adjacent screen supporting portions on the display screen, the middle portion (i.e. the portion corresponding to the hinge mechanism) of the display screen between the two adjacent screen supporting portions also has certain flattening and supporting effects. And, can also utilize the installation department to provide certain supporting role for the middle part of display screen. Certainly, in order to further improve the supported effect of the portion corresponding to the hinge mechanism in the display screen, optionally, the hinge mechanism disclosed in the embodiment of the present application may further include a supporting plate 610, the supporting plate 610 is connected to both the first connecting portion 210 and the second connecting portion 220, and both the first connecting portion 210 and the second connecting portion 220 are used for driving the corresponding supporting plate 610 to rotate relative to the base 100.

Under the condition that the technical scheme is adopted, when the hinge mechanism is in the first state, the support plate 610 corresponding to the first connecting part 210 and the second connecting part 220 can provide a support effect for the part of the corresponding area of the display screen, so that the part of the display screen corresponding to the hinge mechanism can be basically supported by the support plate 610, the integral supported effect of the display screen is improved, and the display effect and the service life of the display screen can be improved.

Specifically, the first connection portion 210 (and the second connection portion 220) and the corresponding support plate 610 may be fixedly connected, so that the support plate 610 may provide a reliable support function for the display screen. In addition, the specific size and shape of the supporting plate 610 can be determined according to the shape and size of other components in the hinge mechanism, and the like, and is not limited herein.

As described above, in the case where the hinge mechanism is in the second state, the first connecting portion 210 and the second connecting portion 220 are both located on the side of the base 100 toward the self screen supporting side, that is, the hinge mechanism is suitable for a fold-in electronic apparatus. When such electronic devices are in a folded state, the hinge mechanism needs to be used to provide an accommodating space for the display screen, so as to ensure that the display screen is not squeezed by components moving relative to each other in the hinge mechanism.

In the case that the hinge mechanism disclosed in the embodiment of the present application includes the support plate 610, in order to provide an avoidance space for the display screen, the first connection portion 210 and the corresponding support portion may form a rotational connection relationship, and further, the two portions have relative rotation capabilities. Of course, since the second connecting portion 220 and the first connecting portion 210 have a substantially symmetrical structure, the first connecting portion 210 can be referred to in the fitting relationship between the second connecting portion 220 and the corresponding support plate 610 and the second synchronization swing arm 420.

In order to ensure that the support plate 610 can rotate relative to the first connection portion 210 under the condition that the first connection portion 210 and the support plate 610 have the capability of rotating relative to each other, the first synchronization swing arm 410 and the support plate 610 may form a matching relationship, so that in the process that the first synchronization swing arm 410 rotates along with the first connection portion 210 relative to the base 100, the relative motion relationship between the first synchronization swing arm 410 and the first connection portion 210 is utilized to provide power for the rotation between the support plate 610 and the first connection portion 210.

Specifically, considering that the rotation axes of the first and

second swing arms

410 and 230 are different, optionally, the support portion is provided with a sliding sleeve 620, the first swing arm 410 is provided with a pin 451, and by sliding the sliding sleeve 620 of the support portion and the pin 451 of the first swing arm 410, the first swing arm 410 can rotate relative to the base 100 with the rotation axis thereof (i.e., the axis of the first link 710) during the rotation of the first connection portion 210 relative to the base 100 with the rotation axis of the second swing portion 230, and the support plate 610 can also rotate relative to the first connection portion 210. Specifically, the specific structural parameters of the track in the sliding sleeve 620 of the supporting portion for sliding fit with the pin 451 can be determined according to the actual conditions such as the rotation axes of the first synchronization swing arm 410 and the second rotating portion 230, which are not limited herein.

In the case that the first connecting portion 210 and the supporting portion have the capability of relative rotation, optionally, in the case that the hinge mechanism is in the first state, each supporting plate 610 is supported on the base 100, and each supporting plate 610 is coplanar with the first surface facing away from the base 100, so that the supporting portion having relative rotation with the first connecting portion 210 (and the second connecting portion 220) can provide a reliable supporting function for the corresponding portion in the display screen by supporting on the base 100.

Of course, in the foregoing state, there is a gap between the end of each of the two adjacent support plates 610 close to each other and the corresponding first connection portion 210 (and the corresponding second connection portion 220), so as to ensure that the first connection portion 210 can rotate relative to the corresponding support plate 610 in the process of switching the hinge mechanism from the first state to the second state, so that the relative rotation angle between the two adjacent support plates 610 is greater than the relative rotation angle between the first connection portion 210 and the second connection portion 220, and further, by using the outward expansion function of the support plates 610, an avoidance space is provided for the display screen, and the display screen is prevented from being damaged due to being squeezed by the support plates 610 in the folding process and in the folded state.

Correspondingly, with the hinge mechanism in the second state, the first connection portion 210 and the second connection portion 220 each support the respective support plate 610, i.e., the support plate 610 corresponding to the first connection portion 210 is supported on the first connection portion 210, the support plate 610 corresponding to the second connection portion 220 is supported on the second connection portion 220, and the respective first surfaces of the two oppositely disposed support plates 610 form a flared structure, and the flare is directed toward the base 100.

Specifically, when the hinge mechanism is in the first state, the first surfaces of the two adjacent support plates 610 for supporting the display screen are coplanar, and as the first connection portion 210 and the second connection portion 220 rotate relatively, the first connection portion 210 and the corresponding support plate 610 also rotate relatively, and the second connection portion 220 and the corresponding support plate 610 rotate relatively, so that the respective rotation angles of the two adjacent support plates 610 can exceed 90 °, and further the distance between the sides of the two adjacent support plates 610 close to the base 100 is greater than the distance between the sides of the two adjacent support plates 610 far from the base 100, thereby achieving the purpose of forming the two support plates 610 into the aforementioned flared structure and facing the flared base 100.

Under the condition of adopting above-mentioned technical scheme, because the backup pad 610 of the hinge mechanism who switches to the second state can be to keeping away from the direction motion of display screen to can provide the effect of dodging for the display screen, make the display screen by the folding in-process, and when being in fold condition, all can not be extrudeed by backup pad 610 (or whole hinge mechanism) basically.

More specifically, both the first and

second connection parts

210 and 220 may be provided as slopes toward one side surface of the support plate 610, so that the support plate 610 can be rotated by a preset angle with respect to the first connection part 210 and supported on the first connection part 210 during the action of the hinge mechanism. As shown in fig. 4, the supporting plate 610 may be provided with a first hinge portion 630, the first connecting portion 210 may be provided with a second hinge portion 240, and the first connecting portion 210 and the supporting plate 610 may be rotatably connected by the hinge engagement of the first hinge portion 630 and the second hinge portion 240. Similarly, the second connecting portion 220 and the corresponding supporting plate 610 may also be provided with a second hinge portion 240 and a first hinge portion 630, respectively.

In another embodiment of the present application, optionally, the hinge mechanism further includes a floating support 310, the floating support 310 is disposed on a side of the base 100 facing a screen supporting side thereof, that is, the floating support 310 is located on a side of the mounting base 320 facing away from the base 100. The floating support 310 is movably connected to the base 100 in the distribution direction of the floating support and the base 100, so that the floating support 310 can move toward the base 100 or away from the base 100. The distribution direction may be a direction perpendicular to the entire hinge mechanism when the hinge mechanism is in the first state, or a direction perpendicular to the display surface of the display screen in the unfolded state, and more intuitively, the distribution direction may be a direction perpendicular to the paper surface in fig. 2.

In the case where the hinge mechanism is provided with the floating support portion 310, an elastic restoring member may be provided to the floating support portion 310, and in the case where the hinge mechanism is in the first state, at least one of the plurality of second rotating portions 230 may support the floating support portion 310 so that the elastic restoring member is in a state of being stretched or pressed while the distance between the floating support portion 310 and the base 100 is relatively long. Correspondingly, under the condition that the hinge mechanism is in the second state, the second rotating part 230 avoids the floating support part 310, so that the floating support part 310 can be reset under the elastic action of the elastic reset piece, that is, the floating support part 310 moves towards the direction close to the base 100, and the distance between the floating support part 310 and the base 100 is reduced.

Obviously, by using the relative movement between the floating support part 310 and the base 100, the hinge mechanism can stably support the display screen on the floating support part 310 when the electronic device is in the unfolded state, so as to improve the support effect of the hinge mechanism on the display screen; moreover, when the electronic device is in a folded state, the floating support portion 310 is made to avoid the display screen, so that an avoiding space is provided for the display screen, and the display screen is prevented from being damaged due to extrusion in the folding process.

As described above, the first and second

synchronization swing arms

410 and 420 can be connected to the corresponding support plate 610 through the sliding sleeve 620 and the pin 451, so as to rotate relative to the base 100 under the driving of the first and

second connection portions

210 and 220, respectively. Also, the first and second

synchronization swing arms

410 and 420 each include a portion connected with the support plate 610, and a portion connected with the base 100 (or the first link 710). Taking the first synchronization swing arm 410 as an example, as shown in fig. 4, the first synchronization swing arm 410 may include a synchronization arm 411 and a sliding seat 412, wherein the synchronization arm 411 is rotatably connected to the base 100 through a first connecting rod 710, the sliding seat 412 may be slidably engaged with the sliding slot 211 of the first connecting portion 210, and the sliding seat 412 may be slidably connected to the sliding sleeve 620 of the supporting plate 610 through a pin 451.

Based on the above structure, alternatively, the sliding sleeve 620 and the synchronizing arm 411 of the support plate 610 may be distributed in a direction perpendicular to the rotation axis of the first rotating portion 330, in which case, in order to reserve a space for installation and action of the sliding sleeve 620, the size of the sliding base 412 in the aforementioned direction perpendicular to the rotation axis of the first rotating portion 330 is also relatively large.

For this reason, in another embodiment of the present application, as shown in fig. 3 and 4, the size of the sliding base 412 can be made larger than that of the synchronizing arm 411 along the direction of the rotation axis of the first rotating portion 330, and with this technical solution, the sliding sleeve 620 and the synchronizing arm 411 can be arranged side by side along the direction of the rotation axis, so that the size of the sliding base 412 in the direction perpendicular to the rotation axis of the first rotating portion 330 can be set relatively small, so that the "width" of the hinge mechanism is relatively small, and the overall size of the hinge mechanism is reduced. Also, in the case of adopting the embodiment of the present application, the connection reliability between the support plate 610 and the first synchronization swing arm 410 can be also improved. Here, the "width" of the hinge mechanism is the distance between the first connection portion 210 (corresponding to the support plate 610) and the second connection portion 220 (corresponding to the support plate 610) when the hinge mechanism is in the first state, and more intuitively, the direction of the "width" may be the direction B in fig. 3.

Based on the hinge mechanism disclosed in any of the above embodiments, the present application further discloses an electronic device, which includes a display screen, a screen support portion and the hinge mechanism disclosed in any of the above embodiments, wherein the first connecting portion 210 and the second connecting portion 220 are both connected with the screen support portion, that is, the number of the screen support portions is at least two. Also, the display screen is located on the screen support side of the base 100 in the hinge mechanism, and the display screen is supported on the hinge mechanism and each screen support portion. Specifically, the portions of the display screen corresponding to the screen support portion are supported on the screen support portion, and the portions of the display screen corresponding to the hinge mechanisms are supported on the hinge mechanisms. Based on the electronic equipment that above-mentioned hinge mechanism formed, under the condition that the hinge mechanism is in the second state, the display screen is surrounded by hinge mechanism and screen supporting part, makes electronic equipment form the interior folding type electronic equipment, and when this kind of electronic equipment was in fold condition, the display screen can be protected by screen supporting part and hinge mechanism to make the display screen be difficult to take place friction or collision etc. with external object, be favorable to promoting the life of display screen.

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 identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of 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 involved, e.g., the methods described may be performed in an order different than 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 present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims

1. A hinge mechanism is characterized by comprising a base, a mounting seat, a first rotating part, a second rotating part, a first connecting part, a second connecting part, a first synchronous swing arm, a second synchronous swing arm and an elastic part,

2. A hinge mechanism according to claim 1, wherein the first and second synchronizing swing arms are provided with meshing teeth, the hinge mechanism further comprising a first gear and a second gear meshing with each other, the first synchronizing swing arm being in driving connection with the first gear, and the second synchronizing swing arm being in driving connection with the second gear.

3. A hinge mechanism according to claim 2, wherein the base further comprises a second positioning portion fixed to the extending portion, the second positioning portion being located between the base and the first positioning portion, and the second positioning portion being spaced apart from the base, and the first synchronization swing arm being disposed between the first positioning portion and the second positioning portion.

4. A hinge mechanism according to claim 3, wherein a third gear is provided at one end of the first link, the third gear is provided with the meshing teeth, and the third gear, the first link and the first synchronous swing arm are relatively fixed in the circumferential direction of the rotation axis;

the third gear with first connecting rod formula structure as an organic whole, the third gear is located first location portion deviates from one side of first synchronous swing arm, second location portion with be equipped with between the pedestal and dismantle the setting element, second location portion passes through can dismantle the setting element with first connecting rod is in relatively fixed in the direction at axis of rotation place.

5. A hinge mechanism according to claim 1, wherein the elastic member is in a stretched or compressed state to press the first synchronization swing arm and a surface of the base to which the first synchronization swing arm is attached.

6. A hinge mechanism according to claim 1, further comprising a limiting member disposed between the base and the first positioning portion, wherein a plurality of first limiting protrusions are disposed at intervals in a circumferential direction of the rotation axis at an end of the limiting member facing the first synchronizing swing arm, and a plurality of second limiting protrusions are disposed at intervals in the circumferential direction of the rotation axis at an end of the first synchronizing swing arm facing the limiting member; through the first limiting bulge and the second limiting bulge, the limiting piece is in rotating fit with the first synchronous swing arm in the circumferential direction of the rotating axis, and the limiting piece and the first synchronous swing arm are in movable fit in the direction of the rotating axis;

in the direction of the rotating axis of the first rotating part, the elastic part is abutted between the limiting part and the first positioning part so as to extrude the limiting part and the first synchronous swing arm.

7. A hinge mechanism according to claim 1, further comprising a support plate, wherein the first and second connection portions are connected to the support plate, and the first and second connection portions are used for driving the corresponding support plate to rotate relative to the base.

8. A hinge mechanism according to claim 7, wherein the first connecting part and the second connecting part are rotatably connected with the corresponding support plates, the support plates are provided with sliding sleeves, the first synchronous swing arm and the second synchronous swing arm are provided with pin shafts, and the sliding sleeves are in sliding fit with the pin shafts;

under the condition that the hinge mechanism is in a first state, each supporting plate is supported on the base, and a first surface of each supporting plate, which faces away from the base, is coplanar; under the condition that the hinge mechanism is in a second state, the first connecting portion and the second connecting portion support the corresponding support plates respectively, the first surfaces of the two oppositely arranged support plates form a flaring-shaped structure, and the flaring faces the base.

9. A hinge mechanism according to claim 8, wherein the first synchronous swing arm comprises a fixedly connected synchronous arm and a slide base, the synchronous arm is rotatably connected with the base through the first connecting rod, the slide base is provided with the pin shaft, and the slide base is in sliding fit with the supporting plate;

in the direction of axis of rotation place, the size of slide is greater than the size of lazytongs arm, just the sliding sleeve with lazytongs arm sets up side by side.

10. An electronic device, comprising a display screen, a screen support portion, and the hinge mechanism of any one of claims 1-9, wherein the first connecting portion and the second connecting portion are both connected to the screen support portion, the display screen is located on a screen support side of a base in the hinge mechanism, and the display screen is supported on the hinge mechanism and each of the screen support portions.