CN114321596B

CN114321596B - Folding mechanism and electronic equipment

Info

Publication number: CN114321596B
Application number: CN202111635838.4A
Authority: CN
Inventors: 许少鹏; 王小伟
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2024-03-08
Anticipated expiration: 2041-12-27
Also published as: CN114321596A; WO2023124475A1

Abstract

The application provides a folding mechanism, electronic equipment, folding mechanism includes two rotation pieces, two pivots and slider. One rotating shaft is connected with one rotating member, the other rotating shaft is connected with the other rotating member, and the axial directions of the two rotating shafts are parallel to each other. The sliding piece is movably connected with the two rotating shafts. The rotating piece drives the rotating shaft connected with the rotating piece to rotate around the axial direction of the rotating piece, the sliding piece can be driven to move along the axial direction, the sliding piece can drive the other rotating shaft to rotate around the axial direction of the rotating piece, and further the other rotating piece and the rotating piece are driven to synchronously move in opposite directions, so that the reliability and the synchronization effect of synchronization are improved. And only two pairs of transmission pairs formed by the two rotating shafts and the sliding piece respectively are needed during synchronization, the number of the transmission pairs is small, and the occupied space of the folding mechanism is reduced. In addition, the folding mechanism only generates twice transmission, so that the transmission efficiency is improved, the accumulated tolerance gap is reduced, and the rotation idle stroke can be effectively reduced.

Description

Folding mechanism and electronic equipment

Technical Field

The application belongs to the technical field of rotating shafts, and particularly relates to a folding mechanism and electronic equipment.

Background

The folding mechanism can be respectively connected with one structural member through two rotating members, so that the rotation of the two structural members is realized. In order to further realize synchronous rotation of the two structural members, a synchronous member is usually arranged in the folding mechanism, but the current synchronous member can lead the folding mechanism to have low synchronous reliability and poor synchronous effect.

Disclosure of Invention

In view of this, the first aspect of the present application provides a folding mechanism comprising:

two rotating members;

the two rotating shafts are connected with one rotating piece, the other rotating shaft is connected with the other rotating piece, and the axial directions of the two rotating shafts are parallel to each other; and

the sliding piece is movably connected with the two rotating shafts;

one rotating piece drives the rotating shaft connected with the rotating piece to rotate around the axial direction of the rotating shaft, the sliding piece can be driven to move along the axial direction, the sliding piece can drive the other rotating shaft to rotate around the axial direction of the rotating shaft, and then the other rotating piece and one rotating piece are driven to synchronously do movement in opposite directions.

The folding mechanism that this application first aspect provided, through the mutually supporting of two rotation pieces, two pivots and slider, but two pivots are connected respectively in different rotation pieces messenger pivot and rotation piece synchronous rotation. Simultaneously, the sliding piece is connected with the two rotating shafts in a sliding way, so that the sliding piece is matched with the two rotating shafts. Through the arrangement, when any one rotating piece rotates relative to the sliding piece, the rotating shaft connected with the rotating piece can be driven to synchronously rotate around the axial direction of the rotating shaft, and the rotating shaft can be matched with the sliding piece to convert the rotation of the rotating shaft into the movement of the sliding piece, so that the sliding piece moves along the axial direction of the rotating shaft. And the moving sliding piece can be matched with another rotating shaft on the other side to convert the movement of the sliding piece into the rotation of the rotating shaft around the axial direction of the rotating shaft. When the other rotating shaft rotates, the other rotating member connected with the rotating shaft can be driven to rotate, so that the two rotating members synchronously do opposite-direction movements.

In conclusion, the synchronous rotation of the two rotating parts can be realized through the sliding part, a plurality of gears are not needed to be arranged in the related art, the problems of virtual position, broken teeth and the like which are easy to occur when the gears are matched with each other are avoided, and the reliability and the synchronous effect of synchronization are improved. The sliding piece can reduce the distance between the two rotating pieces, so that the bending radius is reduced, and the distance between the two rotating pieces can be reduced when the folding mechanism is in a folded state.

And, this application only needs two pivots to make up with the slider respectively two pairs of transmission pair when synchronizing, and the vice quantity of transmission is less, can reduce folding mechanism's size, reduces folding mechanism's occupation space. In addition, the folding mechanism only generates twice transmission, so that the transmission efficiency is improved, the accumulated tolerance gap is reduced, and the rotation idle stroke can be effectively reduced.

The second aspect of the application provides an electronic device, which comprises a flexible screen, two shells and a folding mechanism provided in the first aspect of the application, wherein at least part of the folding mechanism is arranged between the two shells, one shell is connected with one rotating piece, the other shell is connected with the other rotating piece, and the flexible screen is arranged on one side of the two shells.

The electronic equipment that this application second aspect provided through adopting the folding mechanism that this application first aspect provided, can improve the synchronous reliability and the synchronous effect of electronic equipment, improves transmission efficiency, reduces and rotates the idle running. In addition, the synchronous transmission can be realized only by the sliding piece, so that the bending radius can be reduced, the distance between two half flexible screens is reduced, and the appearance performance is improved.

Drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.

Fig. 1 is a schematic perspective view of a folding mechanism according to an embodiment of the present application.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic perspective view of a folding mechanism in an unfolded state according to an embodiment of the present application.

Fig. 4 is a side view of fig. 3.

Fig. 5 is a schematic perspective view of a folding mechanism in a folded state according to an embodiment of the present application.

Fig. 6 is a side view of fig. 5.

Fig. 7 is a schematic perspective view of a folding mechanism in a folded state according to another embodiment of the present application.

Fig. 8 is a side view of fig. 7.

Fig. 9 is an exploded view of a slider and a shaft according to an embodiment of the present application.

Fig. 10 is a side view of fig. 9.

Fig. 11 is a schematic perspective view of a rotating shaft according to an embodiment of the present application.

Fig. 12 is an exploded view of a rotating shaft and a rotating member according to an embodiment of the present application.

Fig. 13 is an exploded view of a slider and a shaft according to another embodiment of the present application.

FIG. 14 is a schematic view of a portion of the slider and shaft in the direction A-A of FIG. 3.

Fig. 15 is a schematic perspective view of a rotating shaft according to another embodiment of the present application.

Fig. 16 is an exploded view of fig. 14.

Fig. 17 is a schematic perspective view of a folding mechanism according to another embodiment of the present application.

Fig. 18 is a schematic perspective view of a first assembly according to an embodiment of the present application.

Fig. 19 is a schematic perspective view of a folding mechanism according to another embodiment of the present application.

Fig. 20 is a partial exploded view of fig. 19.

Fig. 21 is a schematic perspective view of a folding mechanism according to another embodiment of the present application.

Fig. 22 is a schematic perspective view of a slider according to an embodiment of the present application.

Fig. 23 is a schematic perspective view of a folding mechanism according to another embodiment of the present application.

Fig. 24 is a schematic perspective view of another direction of fig. 23.

Fig. 25 is a partial exploded view of fig. 23.

Fig. 26 is a schematic perspective view of a second assembly according to an embodiment of the present application.

Fig. 27 is a schematic partial perspective view of a folding mechanism according to another embodiment of the present application.

Fig. 28 is an exploded view of a swivel, a sleeve, and a first fitting in an embodiment of the present application.

Fig. 29 is an exploded view of a rotary member and a first fitting member in another embodiment of the present application.

Fig. 30 is a side view of an electronic device in an embodiment of the present application.

Fig. 31 is a schematic view of a part of the structure of an electronic device in an embodiment of the present application.

Fig. 32 is a partial exploded view of fig. 31.

Fig. 33 is an exploded view of a bracket, a shaft, and a rotating member according to an embodiment of the present invention.

Fig. 34 is a schematic view of a partial perspective view of a folding mechanism according to an embodiment of the present disclosure.

Fig. 35 is a schematic view of a partial perspective view of a folding mechanism according to an embodiment of the present disclosure.

Description of the reference numerals:

the folding mechanism-1, the electronic device-2, the flexible screen-3, the housing-4, the rotating member-10, the rotating end-11, the connecting end-12, the connecting hole-13, the evacuation space-14, the first surface-15, the second surface-16, the rotating shaft-20, the axial direction-D, the axis-21, the first mating portion-22, the threaded portion-220, the sub-threaded portion-2200, the first portion-23, the second portion-24, the flat structure-240, the rotating portion-241, the first damping portion-25, the first sub-damping portion-250, the wedge surface-2511, the arc surface-2512, the abutment surface-2513, the slider-30, the second mating portion-31, the threaded groove-310, the housing space-32, the second damping portion-33, the second sub damping part-330, the sliding groove-34, the first guiding shaft-35, the first groove-36, the fourth guiding shaft-37, the second groove-38, the first sliding part-39, the first fitting-40, the first rotating space-41, the mating groove-42, the second guiding shaft-43, the rotating space-44, the second rotating space-45, the rotating groove-46, the guiding rail-50, the screw-51, the screw hole-52, the first elastic member-60, the second fitting-70, the third guiding shaft-71, the second elastic member-80, the bracket-90, the body-91, the side wall-92, the rotating seat-93, the second rotating hole-930, the installation space-94, the avoiding space-95, the device comprises a limiting part-96, a second sliding part-97, a rotating part-100, a shaft sleeve-110, a rotation center line-111, a rotating block-120 and a rotating hole-130.

Detailed Description

The following are preferred embodiments of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be within the scope of the present application.

Before the technical scheme of the application is described, the technical problems in the related art are described in detail.

The folding mechanism has functions of rotation, folding, and the like, and is applicable to various fields, such as a door lock field, a vehicle field, a machine manufacturing field, an electronic device field, and the like. The folding mechanism can be respectively connected with one structural member through two rotating members, so that the rotation of the two structural members is realized. A flexible folding electronic device in which the folding mechanism is applied to the electronic device will now be exemplified.

One of the important structural components in flexible folding electronic devices: flexible display screens are an important application technology of Organic Light-Emitting Semiconductors (OLEDs), and have been developed in recent years. Compared with the traditional display screen, the flexible display screen has remarkable advantages, such as lighter and thinner volume and lower power consumption, and has the advantages of being bendable, flexible and the like, and the application scene of the flexible display screen is wider and wider, for example, a plurality of mass-produced folding mobile phones based on the flexible display screen are mainly divided into two schemes of flexible screen inward folding and flexible screen outward folding on the market. The inner fold has the advantage that the shell can effectively protect the flexible screen to reduce the influence of external impact and abrasion. The advantage of the out-folding is that the bending angle of the flexible screen does not have to be too small and the use of the half-screen does not have to spread the flexible screen.

However, the flexible display screen is a flexible light-emitting layer with very thin thickness, and in the application of the product, the flexible display screen can be conveniently used by a user only by depending on a structure with certain rigidity. Therefore, structurally, the bending of the flexible display screen is required to be supported by a rigid shell, and the two shells are connected through a folding mechanism. The flexible display screen follows the deformation of the shell and the folding mechanism, and realizes the change of the unfolding state and the folding state. Therefore, the deformation process of the flexible display screen is the movement process of the foldable mechanism.

The flexible folding electronic device generally requires that the two housings rotate synchronously to reduce the time required for opening and folding the flexible folding electronic device, so that the two rotating members connected with the two housings rotate synchronously, and a scheme of gear engagement is generally adopted to serve as a synchronous member to realize synchronous movement of the left rotating member and the right rotating member. However, the small accuracy of the gear size is not easy to control, and the existence of the gear virtual position is easy to cause the synchronization effect of the left shell and the right shell to be poor. And the gear engagement unit area is low, the problem of broken teeth and jamming easily occurs, and the reliability is low.

In view of this, in order to solve the above-described problems, the present application provides a folding mechanism. Referring to fig. 1-2 together, fig. 1 is a schematic perspective view of a folding mechanism according to an embodiment of the present application. Fig. 2 is an exploded view of fig. 1. The present embodiment provides a folding mechanism 1 including two rotating members 10, two rotating shafts 20, and a slider 30. One rotation shaft 20 is connected to one rotation member 10, the other rotation shaft 20 is connected to the other rotation member 10, and the axial directions D of the two rotation shafts 20 are parallel to each other. The sliding member 30 is movably connected with the two rotating shafts 20. The rotation of one rotating member 10 around its own axis D can drive the sliding member 30 to move along the axis D, and the movement of the sliding member 30 along the axis D can drive the rotation of the other rotating member 20 around its own axis D, so as to drive the movement of the other rotating member 10 and the movement of one rotating member 10 in opposite directions.

The folding mechanism 1 (Foading mechanism) can be applied to various structures such as a door lock, a vehicle, various mechanical devices, an electronic device 2, and the like. Alternatively, the present embodiment and the following description will be made schematically with the folding mechanism 1 applied to the electronic apparatus 2, but this does not represent that the folding mechanism 1 of the present embodiment can be applied only to the electronic apparatus 2, but can also be applied to other structures. Further alternatively, the electronic device 2 provided in this embodiment includes, but is not limited to, a folding mobile phone, a tablet computer, a notebook computer, a palm top computer, a personal computer (Personal Computer, PC), a personal digital assistant (Personal Digital Assistant, PDA), a portable media player (Portable Media Player, PMP), a navigation device, a wearable device, a smart bracelet, a pedometer, and a mobile terminal such as a digital TV, a desktop computer, and the like. When the folding mechanism 1 is applied to a folding mobile phone, the folding mechanism is a structural unit which is connected with the shell and supports the flexible screen, so that the possible dislocation between the shell and the flexible screen can be reduced.

The two rotating members 10 are respectively used for connecting different structural members, for example, in a folding mobile phone, the two rotating members 10 can be respectively connected with a shell, so that the rotating members 10 can be driven to rotate when the shell rotates, or the shell can be driven to rotate when the rotating members 10 rotate. The shape, structure, material, and other parameters of the two rotating members 10 are not limited in this embodiment, as long as the rotating members 10 can be rotated.

Optionally, the two rotating members 10 are arranged at intervals, that is, a space is provided between the two rotating members 10, so that when the two rotating members 10 rotate, the probability of collision can be reduced, connection between other structural members and the rotating members 10 is facilitated, and an assembly space can be reserved for the other structural members. Of course, in other embodiments, the two rotating members 10 may be disposed in contact with each other, and this embodiment will be schematically described only with the two rotating members 10 disposed at a distance.

Alternatively, the two rotating members 10 are disposed in an axisymmetric manner, and each rotating member 10 includes a rotating end 11 and a connecting end 12 disposed opposite to each other, the rotating end 11 being an end of the rotating member 10 having a rotation center, and the connecting end 12 being an end of the rotating member 10 connected to other structural members (e.g., a housing). The two rotating ends 11 are close to each other compared with the two connecting ends 12, i.e. the two connecting ends 12 are far away from each other compared with the two connecting ends 12, so that the two rotating parts 10 can be conveniently connected with other structural parts respectively, and the structural design of the other structural parts can be also facilitated. Of course, in other embodiments, the two rotating ends 11 may be far away from each other compared to the two connecting ends 12, or the two connecting ends 12 may be located on the same side of the two rotating ends 11. The two rotating members 10 may be arranged symmetrically about the center, or may be arranged in the same direction. The present embodiment is schematically illustrated with two rotating ends 11 being closer to each other than two connecting ends 12.

Optionally, the rotating member 10 is slidably connected with other structural members, that is, the rotating member 10 and other structural members can not only rotate synchronously, but also move relative to other structural members, so as to meet specific requirements. For example, when the electronic device 2 is a U-shaped flexible folding screen mobile phone, the rotating member 10 is not in sliding connection with the housing, and when the electronic device 2 is a water-drop type flexible folding screen mobile phone, the rotating member 10 can be in sliding connection with the housing, so that the housing can be enclosed to form a water-drop shape in the rotating process. Therefore, the folding mechanism 1 provided in this embodiment can be used for both U-shaped flexible folding screen mobile phones and water droplet-shaped flexible folding screen mobile phones, and this embodiment is not limited thereto.

The rotating shaft 20 is a columnar shaft and mainly plays a role of rotation. The shape, structure, material, and other parameters of the two rotating shafts 20 are not limited in this embodiment, as long as rotation can be achieved. Each spindle 20 is connected to one rotating member 10, i.e. one spindle 20 is connected to one rotating member 10 and the other spindle 20 is connected to the other rotating member 10. Because the rotating shaft 20 is matched with the rotating member 10, the rotating member 10 can be driven to synchronously rotate when the rotating shaft 20 rotates, or the rotating shaft 20 can be driven to synchronously rotate when the rotating member 10 rotates. It should be noted that the term "connected" as used herein is understood to mean a fixed connection, but may also be a detachable connection or other connection means. The rotation shaft 20 and the rotation member 10 are integrally constructed when the rotation shaft 20 is fixedly coupled to the rotation member 10, but the rotation shaft 20 and the rotation member 10 are named differently for convenience of understanding. As shown in fig. 2, when the rotating member 10 is detachably connected to the rotating shaft 20, the rotating member 10 may be sleeved on the rotating shaft 20 by using its own connecting hole 13, and by designing the shape of the rotating shaft 20 and the shape of the connecting hole 13, the synchronous rotation of the rotating shaft 20 and the rotating member 10 is realized, so as to facilitate the assembly of the folding mechanism 1. Alternatively, the present embodiment is schematically illustrated by the detachable connection of the rotating member 10 to the rotating shaft 20, and the detailed description will be given later in this application as to the specific structures of the rotating shaft 20 and the rotating member 10. In addition, the axial directions D of the two rotating shafts 20 are parallel to each other, which provides a basis for the movement of the subsequent folding mechanism 1, and prevents the folding mechanism 1 from being blocked during the movement process.

Optionally, the two rotating shafts 20 are arranged at intervals, so that collision between the two rotating shafts 20 during rotation can be avoided, and an assembly space can be reserved for other structural components such as the sliding component 30.

The slide 30 mainly serves as a guide movement. The present embodiment is not limited to parameters such as the shape, structure, and material of the slider 30, as long as movement is possible. In this embodiment, the sliding member 30 may be movably connected with the two rotating shafts 20, so as to realize the assembly of the sliding member 30 and the rotating shafts 20, so that the subsequent sliding member 30 and the rotating shafts 20 are convenient to cooperate, and the rotation and the movement are realized.

Optionally, at least part of the sliding member 30 is disposed between the two rotating shafts 20, and the sliding member 30 is assembled by using a gap between the two rotating shafts 20, so as to reduce the size and space of the folding mechanism 1. Reference herein to "at least a portion of the slider 30 being disposed between the two rotational shafts 20" is to be understood that all of the slider 30 may be disposed between the two rotational shafts 20, or a portion of the slider 30 may be disposed between the two rotational shafts 20, while the remaining slider 30 is not disposed between the two rotational shafts 20. The present embodiment is schematically illustrated with a portion of the slider 30 disposed between the two rotating shafts 20.

When at least part of the sliding member 30 is disposed between the two rotating shafts 20, the sliding member 30 can be engaged with the two rotating shafts 20. Alternatively, the sliding member 30 abuts against the two rotating shafts 20, such that the rotation of the rotating shafts 20 is directly transmitted to the sliding member 30, or the movement of the sliding member 30 is directly transmitted to the rotating shafts 20.

Alternatively, the number of the sliding members 30 is one, that is, one sliding member 30 can implement the technical solution of the present embodiment. Of course, in other embodiments, a plurality of sliders 30 may be provided, and only one slider 30 is schematically illustrated in this embodiment.

In this embodiment, by providing the three structural members, the synchronous transmission of the folding mechanism 1 can be achieved by the mutual cooperation of the two rotating members 10, the two rotating shafts 20 and the sliding member 30, and the folding mechanism 1 can be also referred to as a folding mechanism 1 with a synchronous function. Specifically, when any one of the two rotating members 10 rotates relative to the sliding member 30, the rotating shaft 20 connected thereto is driven to rotate synchronously about its own axial direction D (as shown by D1 in fig. 1). The rotating member 10 rotates in the direction D1 in the same direction as the rotating member 10. The rotation of the rotating member 10 may be caused by a structural member (e.g., a housing) connected to the rotating member 10 to rotate the rotating member 10, and the structural member may move along a set trajectory around a rotation center of the rotating member 10. The rotating shaft 20 may cooperate with the sliding member 30 to convert the rotation of the shaft 20 into an axial direction D of the sliding member 30, so that the sliding member 30 moves along the axial direction D of the shaft 20 (as shown in D2 in fig. 1), and the axial direction D of the sliding member 30 along the shaft 20 may be understood as a movement direction of the sliding member 30 parallel to the axial direction D of the shaft 20. As shown in fig. 1, the axial direction D of the rotating shaft 20 can be understood as the extending direction of the axis 21 of the rotating shaft 20.

Since both sides of the sliding member 30 are engaged with the two rotating shafts 20, when the sliding member 30 moves, the sliding member 30 can also engage with the other rotating shaft 20 on the other side to convert the movement of the sliding member 30 into the rotation of the other rotating shaft 20 around the own axial direction D, thereby synchronously rotating the two rotating shafts 20. When the other rotating shaft 20 rotates, the other rotating member 10 connected with the other rotating shaft is driven to synchronously move in the opposite direction to the one rotating member 10, so that the two rotating members 10 synchronously rotate (as shown by D1 in fig. 1). When the other rotating member 10 rotates, the structural member (e.g., a housing) connected with the other rotating member 10 can be driven to rotate, so that synchronous rotation of the two structural members is finally realized. As to how the rotation shaft 20 and the sliding member 30 cooperate to mutually convert the rotation of the rotation shaft 20 and the movement of the sliding member 30, the present application will be described in detail below.

In summary, the present application can realize synchronous rotation of two rotating members 10 through the sliding member 30, and when one rotating shaft 20 moves the sliding member 30, the sliding member 30 can immediately rotate the other rotating shaft 20. Because only one part of the sliding piece 30 is used as a synchronous structure, the problems of virtual position, broken teeth and the like which are easy to occur when a plurality of gears are mutually matched like the arrangement of a plurality of gears in the related art are avoided, and the reliability of transmission and the synchronous effect are improved. Furthermore, the sliding member 30 is arranged to reduce the distance between the two rotating members 10, thereby reducing the bending radius, and the distance between the two rotating members 10 when the folding mechanism 1 is in the folded state.

In addition, only two pairs of transmission pairs formed by the two rotating shafts 20 and the sliding piece 30 are needed during synchronization, the number of the transmission pairs is small, the structure is simple, the size of the folding mechanism 1 can be reduced, and the occupied space of the folding mechanism 1 is reduced. In addition, the folding mechanism 1 only generates twice transmission, so that the transmission efficiency is improved, the accumulated tolerance gap is reduced, and the rotation idle stroke can be effectively reduced.

Optionally, at least part of the slider 30 is provided on one side of both rotational members 10. Of course, in other embodiments, the sliding member 30 may be disposed between the two rotating members 10 by adjusting the connection manner of the rotating members 10 and the rotating shaft 20 and the positional relationship between the rotating members 10 and the rotating shaft 20. The positional relationship between the slider 30 and the two rotary members 10 is not limited in this embodiment. In the present embodiment, only the slider 30 is provided on one side of the two rotating members 10. When the slider 30 is provided at one side of the two rotating members 10, the movement of the slider 30 in the axial direction D of the rotation shaft 20 can also be understood as the movement of the slider 30 in a direction approaching or separating from the rotating members 10.

Alternatively, the rotary member 10 may be rotated both clockwise and counterclockwise with respect to the slide member 30.

Alternatively, the rotation directions of the two rotating members 10 are opposite to each other so that the two rotating members 10 move in the same direction or in opposite directions, which is also understood as that the rotation directions of the two rotating shafts 20 are opposite to each other, that is, the other rotating shaft 20 rotates synchronously in a direction opposite to the rotation direction of one rotating shaft 20, so that the other rotating member 10 is driven to rotate relative to the sliding member 30 in a direction opposite to the rotation direction of the one rotating member 10. For example, when one rotary member 10 rotates clockwise outward, the other rotary member 10 rotates counterclockwise outward. Alternatively, when one rotary member 10 rotates clockwise inward, the other rotary member 10 rotates counterclockwise inward. On the basis of the synchronous rotation, the folding mechanism 1 can be unfolded and folded, so that the size of the folding mechanism 1 can be changed under different movement states.

Referring to fig. 3-8 together, fig. 3 is a schematic perspective view illustrating a folding mechanism in an unfolded state according to an embodiment of the present application. Fig. 4 is a side view of fig. 3. Fig. 5 is a schematic perspective view of a folding mechanism in a folded state according to an embodiment of the present application. Fig. 6 is a side view of fig. 5. Fig. 7 is a schematic perspective view of a folding mechanism in a folded state according to another embodiment of the present application. Fig. 8 is a side view of fig. 7. In the present embodiment, the folding mechanism 1 has an unfolded state in which the extending direction of the rotating member 10 is parallel to the arrangement direction of the two rotating shafts 20, and a folded state in which the extending direction of the rotating member 10 is perpendicular to the arrangement direction of the two rotating shafts 20, and when the folding mechanism 1 is in the unfolded state or the folded state, a gap is provided between the slider 30 and the rotating member 10.

The folding mechanism 1 has two special states during movement, i.e. the rotation element 10 has during rotation: an unfolded state and a folded state. The unfolded state refers to a state when the two rotating members 10 are disposed in parallel, and the extending direction of the rotating members 10 (as shown by D3 in fig. 3) is parallel to the arrangement direction of the two rotating shafts 20 (as shown by D4 in fig. 3). The extending direction of the rotary member 10 may be understood as a direction from the rotary end 11 to the connection end 12 of the rotary member 10 or a direction from the connection end 12 to the rotary end 11 of the rotary member 10. As shown in fig. 3 to 4, the two rotating shafts 20 are arranged in a horizontal direction, so that when the extending direction of the two rotating members 10 is also arranged horizontally, the unfolded state of the folding mechanism 1 can be understood at this time. The folded state refers to a state when the two rotating members 10 are disposed in parallel, and the extending direction of the rotating members 10 (shown as D3 in fig. 5 and 7) is perpendicular to the arrangement direction of the two rotating shafts 20 (shown as D4 in fig. 5 and 7). As shown in fig. 5 to 8, the two rotating shafts 20 are arranged in a horizontal direction, so that when the extending directions of the two rotating members 10 are arranged vertically, the folded state of the folding mechanism 1 can be understood at this time.

When the folding mechanism 1 is in the unfolded state, the area of the folding mechanism 1 can be maximized, with the largest unfolded area. When the folding mechanism 1 is in the folded state, the area of the folding mechanism 1 is the smallest, and may be half of the unfolded area. Thus, when the folding mechanism 1 is switched between the unfolded state and the folded state, the area of the folding mechanism 1, and the structural members provided on the folding mechanism 1, is also continuously switched between the maximum and minimum. For example, when the flexible screen is provided on one side of the two rotating members 10, when the folding mechanism 1 is in the unfolded state, the display surface of the flexible screen is arranged flush at this time, and thus the display area on the side of the folding mechanism 1 is maximized. When the folding mechanism 1 is in a folded state, the flexible screen is bent under the driving of the folding mechanism 1, so that the display area on one side of the folding mechanism 1 is reduced to be half of that of unfolding.

Alternatively, when a flexible screen (not shown) is provided on one side of the two rotating members 10, for example, above the rotating members 10 in fig. 5 to 8, the rotating direction of the rotating members 10 may affect the folding manner of the flexible screen. For example, if the rotating member 10 rotates in a direction approaching the flexible screen during the process from the unfolded state to the folded state, the display surfaces of the two halves are disposed close to each other, and this can be understood as an inward folding of the flexible screen (as shown in fig. 5 to 6). If the rotating member 10 rotates in a direction away from the flexible screen, the display surfaces of the two halves are disposed away from each other, which can be understood as folding the flexible screen outwards (as shown in fig. 7-8).

In addition, referring to fig. 3, 5, and 7, in the present embodiment, when the folding mechanism 1 is in the unfolded state or the folded state, that is, when the folding mechanism 1 is in the limit state, a gap is provided between the slider 30 and the rotator 10. In other words, a gap is provided between the slider 30 and the rotary member 10 when the slider 30 moves to the limit position, preventing the slider 30 and the rotary member 10 from colliding with each other, and improving the safety of the folding mechanism 1.

Alternatively, the slider 30 is moved in a direction approaching the rotary member 10 during the process of the folding mechanism 1 from the unfolded state to the folded state; correspondingly, the slider 30 moves in a direction away from the rotator 10 during the folding mechanism 1 from the folded state to the unfolded state. Alternatively, the slider 30 is moved in a direction away from the rotary member 10 during the process of the folding mechanism 1 from the unfolded state to the folded state; correspondingly, the slider 30 moves in a direction approaching the rotary member 10 during the process of the folding mechanism 1 from the folded state to the unfolded state.

Referring to fig. 9, fig. 9 is an exploded view of a slider and a shaft according to an embodiment of the present application. In this embodiment, a first engaging portion 22 is disposed on a circumferential side of the rotating shaft 20, and second engaging portions 31 are disposed on opposite sides of the sliding member 30, and the first engaging portion 22 is engaged with the second engaging portion 31 to convert rotation of the rotating shaft 20 relative to the sliding member 30 into movement of the sliding member 30 along an axial direction D of the rotating shaft 20. And converting the movement of the slider 30 in the axial direction D of the rotation shaft 20 into rotation of the rotation shaft 20 relative to the slider 30.

In order to achieve a mutual transformation of the rotation of the spindle 20 and the movement of the slide 30, a specific embodiment is provided. The first engaging portions 22 may be provided on the circumferential sides of the rotating shafts 20, i.e., the first engaging portions 22 may be provided on the circumferential sides of both rotating shafts 20. Wherein the circumferential side of the rotating shaft 20 generally refers to the side of the rotating shaft 20 in the circumferential direction. The first engaging portion 22 and the rotating shaft 20 may be integrally formed or may be separately formed. When the first engaging portion 22 and the rotating shaft 20 are integrally formed, the first engaging portion 22 and the rotating shaft 20 can be manufactured through one process, and for convenience of understanding, the first engaging portion 22 and the rotating shaft 20 are named differently. When the first engaging portion 22 and the rotating shaft 20 are in a split structure, the first engaging portion 22 and the rotating shaft 20 may be formed separately and assembled together in various manners. The present embodiment is not limited to the fitting relation between the first fitting portion 22 and the rotation shaft 20.

Since at least part of the slider 30 is disposed between the two rotating shafts 20, the second engaging portions 31 may be disposed at opposite sides of the slider 30 for engaging with the first engaging portions 22 of the rotating shafts 20 at both sides, and only one side of the slider 30 is illustrated as being provided with the second engaging portions 31, and the other side should be understood as being also provided with the second engaging portions 31. Alternatively, the two opposite sides of the sliding member 30 are opposite sides of the sliding member 30 near the two rotating shafts 20, so that the first engaging portion 22 and the second engaging portion 31 are engaged. Of course, in other embodiments, the opposite sides of the sliding element 30 may be other sides, and other structural members may be used to mate the first mating portion 22 and the second mating portion 31, and this embodiment only uses the opposite sides of the sliding element 30 as the opposite sides of the sliding element 30 near the two rotating shafts 20 for illustration.

The second fitting portion 31 and the slider 30 may be integrally formed or may be separately formed. When the second fitting portion 31 and the sliding member 30 are integrally formed, the second fitting portion 31 and the sliding member 30 may be manufactured by one process, and for convenience of understanding, the second fitting portion 31 and the sliding member 30 are named differently. When the second fitting portion 31 and the sliding member 30 are of a split structure, the second fitting portion 31 and the sliding member 30 may be formed separately and then assembled together in various manners. The present embodiment does not limit the fitting relationship between the second fitting portion 31 and the slider 30.

In the present embodiment, parameters such as the structure, shape, and material of the first engaging portion 22 and the second engaging portion 31 are not limited, as long as the first engaging portion 22 and the second engaging portion 31 can be engaged with each other to switch between movement and rotation.

Alternatively, the number of the first engaging portions 22 and the second engaging portions 31 may be plural, and the plurality of first engaging portions 22 and the plurality of second engaging portions 31 may improve the transmission precision, and the engaging area is large and the mechanical reliability is high. Further alternatively, the number of the first engaging portions 22 and the number of the second engaging portions 31 may be equal or unequal, which is not limited in this embodiment.

By the arrangement of the first matching part 22 and the matching part, when any one of the two rotating parts 10 rotates relative to the sliding part 30, the rotating shaft 20 connected with the two rotating parts can be driven to synchronously rotate. When the rotating shaft 20 rotates, the first matching portion 22 disposed on the rotating shaft 20 is driven to rotate. Since the first engaging portion 22 and the second engaging portion 31 on the side of the slider 30 are engaged with each other, the rotation of the first engaging portion 22 is converted into the movement of the second engaging portion 31, thereby moving the slider 30 in the axial direction D of the shaft 20. When the sliding member 30 moves, the second matching portion 31 on the other side of the sliding member 30 can be driven to move, and the second matching portion 31 on the other side can be matched with the first matching portion 22 on the other rotating shaft 20 to convert the movement of the second matching portion 31 into the rotation of the first matching portion 22, so as to realize the synchronous rotation of the other rotating shaft 20 and the other rotating member 10.

In addition, since the shapes, structures and dimensions of the second engaging portions 31 on both sides of the slider 30 are identical, when one rotating member 10 and one rotating shaft 20 rotate in the first direction, the first engaging portion 22 and the second engaging portion 31 cooperate to move the slider 30, and the second engaging portion 31 on the other side cooperates with the other first engaging portion 22 to rotate the other rotating member 10 and the other rotating shaft 20 in the direction opposite to the first direction, thereby automatically realizing the unfolding and folding.

Referring again to fig. 9-11, fig. 10 is a side view of fig. 9. Fig. 11 is a schematic perspective view of a rotating shaft according to an embodiment of the present application. In this embodiment, one of the first mating portion 22 and the second mating portion 31 includes a threaded portion 220, the other of the first mating portion 22 and the second mating portion 31 includes a threaded groove 310, and the extending direction of the threaded portion 220 and the threaded groove 310 is inclined to the rotating direction of the rotating shaft 20.

The present application further provides an embodiment of the first mating portion 22 and the second mating portion 31, and the threaded portion 220 and the threaded groove 310 can be utilized to realize conversion between rotation and movement. Wherein the screw part 220 refers to a portion protruding at the circumferential side of the rotation shaft 20 or the opposite sides of the slider 30, and the screw groove 310 refers to a portion recessed at the circumferential side of the rotation shaft 20 or the opposite sides of the slider 30. The first mating portion 22 includes a threaded portion 220 or a threaded groove 310, and the second mating portion 31 includes a threaded groove 310 or a threaded portion 220, respectively. Specifically, when the first fitting portion 22 is the screw portion 220, the second fitting portion 31 is the screw groove 310. Alternatively, when the first fitting portion 22 is the screw groove 310, the second fitting portion 31 is the screw portion 220. In the present embodiment, only the first engagement portion 22 is the screw portion 220, and the second engagement portion 31 is the screw groove 310.

In addition, the screw portion 220 and the screw groove 310 are disposed, and the extending direction of the screw portion 220 and the screw groove 310 is inclined to the rotation direction of the rotating shaft 20. As shown in fig. 10, the rotation direction of the rotation shaft 20 and the rotation member 10 can be understood as vertical rotation, so that the extending direction of the screw part 220 and the screw groove 310 is not vertical, but slightly inclined, and the specific inclination angle can be designed according to the requirement. When the rotating member 10 rotates with the rotating shaft 20, the threaded portion 220 or the threaded groove 310 on the first mating portion 22 is driven to be rotationally connected with the threaded groove 310 or the threaded portion 220 on one side of the sliding member 30. Since the screw groove 310 and the screw part 220 are inclined, the screw part 220 contacts the groove wall of the screw groove 310 during rotation to apply a force to the groove wall, converting at least part of the rotational force in the vertical direction into a moving force in the horizontal direction, and moving the slider 30. The other side of the sliding member 30 is also matched in the same way, and the moving force is converted into the rotating force, so that the other rotating shaft 20 and the other rotating member 10 rotate.

Alternatively, the threaded portion 220 or the threaded groove 310 on the rotating shaft 20 is spirally disposed along the circumferential direction, so that the threaded portion 220 and the threaded groove 310 can be better engaged during the rotation of the rotating shaft 20.

Alternatively, as shown in fig. 11, the screw part 220 includes a plurality of sub-screw parts 2200 disposed at intervals, and the engagement with the screw groove 310 may be achieved by the plurality of sub-screw parts 2200 disposed at intervals, thereby achieving the conversion of rotation and movement. And dividing the one integral threaded portion 220 into a plurality of sub-threaded portions 2200 also reduces manufacturing difficulties, reduces costs, and reduces the weight of the folding mechanism 1.

Referring to fig. 2 and 9 again, in the present embodiment, receiving spaces 32 are formed on opposite sides of the sliding member 30, the second engaging portion 31 is disposed on an inner wall of the receiving space 32, and a portion of the rotating shaft 20 is disposed in the receiving space 32.

The present application describes in detail an embodiment in which a portion of the slider 30 is disposed between two shafts 20. The two opposite sides of the sliding member 30 are respectively provided with an accommodating space 32, at this time, the second matching portion 31 can be arranged on the inner wall of the accommodating space 32, at this time, a part of the rotating shaft 20 can be arranged in the accommodating space 32, so that the first matching portion 22 on the rotating shaft 20 is matched with the second matching portion 31 on the inner wall. First, the arrangement of a portion of the rotating shaft 20 in the accommodating space 32 reduces the size of the rotating shaft 20, the sliding member 30, and the rotating shaft 20 in the arrangement direction, thereby making the folding mechanism 1 more compact. And the second matching portion 31 is disposed on the inner wall of the sliding member 30, compared with the second matching portion 31 disposed on the side wall 92 without the accommodating space 32, the contact area between the first matching portion 22 and the second matching portion 31 can be increased, so that the first matching portion 22 and the second matching portion 31 can be better matched, and the transmission effect can be improved.

Optionally, the shape of the inner wall of the accommodating space 32 is matched with the shape of the circumference of the rotating shaft 20, so that the contact area of the first matching portion 22 and the second matching portion 31 is further increased, the first matching portion 22 and the second matching portion 31 are better matched, and the transmission effect is improved.

Alternatively, the receiving space 32 may be a receiving groove or a receiving hole. For example, two opposite sides of the sliding member 30, which are close to the two rotating shafts 20, may be provided with receiving grooves, so that the rotating shafts 20 are disposed in the receiving grooves. Or the adjacent sides of the sliding part 30, which are close to the two rotating shafts 20, are provided with accommodating holes, so that the rotating shafts 20 penetrate through the accommodating holes. When the rotating shaft 20 penetrates through the accommodating hole, the hole wall of the accommodating hole can be matched with the rotating member 10, so that the limiting effect on the sliding member 30 can be realized.

The connection relationship and the positional relationship between the rotating shaft 20 and the rotating member 10 are described in detail, and the connection relationship between the rotating shaft 20 and the rotating member 10 will be described further.

Referring to fig. 12 together, fig. 12 is an exploded view of a rotating shaft and a rotating member according to an embodiment of the present application. In this embodiment, the rotating shaft 20 includes a first portion 23 and a second portion 24 that are connected, the first mating portion 22 is disposed on a peripheral side of the first portion 23, at least a portion of the second portion 24 is provided with a flat structure 240, the rotating member 10 has a connecting hole 13, and the rotating member 10 is sleeved with the flat structure 240 through the connecting hole 13 so that the rotating member 10 and the rotating shaft 20 synchronously rotate.

The rotary shaft 20 in the present embodiment includes a first portion 23 and a second portion 24. The first portion 23 and the second portion 24 form the rotating member 10, and the first portion 23 and the second portion 24 may be in an integral structure or a split structure. When the first portion 23 and the second portion 24 are integrally formed, the first portion 23 and the second portion 24 may be manufactured by one process, and for convenience of understanding, the first portion 23 and the second portion 24 are designated by different names. When the first portion 23 and the second portion 24 are formed as a separate structure, the first portion 23 and the second portion 24 may be formed separately and then assembled together in various manners. The present embodiment is not limited to the fitting relationship between the first portion 23 and the second portion 24. The first engaging portion 22 mentioned above is provided on the peripheral side of the first portion 23, and the shape, structure, and size of the first portion 23 are not limited in this embodiment, as long as the first engaging portion 22 can engage with the second engaging portion 31 when the rotation shaft 20 is rotated.

As to the structure of the second portion 24, this embodiment has certain requirements, and at least part of the second portion 24 may be provided with a flat structure 240. The flat structure 240 refers to that if the second portion 24 has a circular circumferential shape, the rotating member 10 sleeved on the second portion 24 is difficult to fix with the second portion 24, so that the circular shape can be processed into other shapes through various processes (such as milling) to achieve fixation or clamping during the rotation of the rotating member 10. Thus, the flat structure 240 may be understood as a structure that is non-circular in shape. Alternatively, the flat structure 240 may have a square, rectangular, oval, pentagram, etc. shape in the circumferential direction. On this basis, the rotary part 10 can be provided with a connecting hole 13, and the shape of the connecting hole 13 can be matched with the shape of the flat structure 240 in the circumferential direction. For example, if the shape of the flat structure 240 in the circumferential direction is square, the shape of the connection hole 13 is also square. If the shape of the flat structure 240 in the circumferential direction is elliptical, the shape of the connection hole 13 is also elliptical. In this way, the rotating member 10 is sleeved on the flat structure 240 through the connecting hole 13, so that the rotating member 10 rotates to drive the rotating shaft 20 to rotate or the rotating shaft 20 rotates to drive the rotating member 10 to rotate. In this embodiment, only the shapes of the flat structure 240 and the connection hole 13 are schematically described as squares.

In addition, the above-mentioned "at least part of the second portions 24 are provided with the flat structures 240" is understood to mean that all of the second portions 24 are provided with the flat structures 240, or that part of the second portions 24 are provided with the flat structures 240, and the rest of the second portions 24 are not provided with the flat structures 240. Alternatively, the second portion 24, which is not provided with the flat structure 240, may still be circular in shape in the circumferential direction, thereby facilitating assembly of the shaft 20 to other structural members and achieving a rotational connection. In this embodiment, only a part of the second portion 24 is provided with the flat structure 240.

Referring to fig. 13-14 together, fig. 13 is an exploded view of a slider and a shaft according to another embodiment of the present application. FIG. 14 is a schematic view of a portion of the slider and shaft in the direction A-A of FIG. 3. In this embodiment, the first engaging portion 22 is provided with a first damping portion 25, the second engaging portion 31 is provided with a second damping portion 33, and when the rotating member 10 rotates to a preset angle relative to the sliding member 30, the first damping portion 25 abuts against the second damping portion 33 so that the rotating member 10 maintains a stationary state relative to the sliding member 30 when the rotating member 10 stops rotating.

As is apparent from the above, the conversion between the rotation of the rotation shaft 20 and the movement of the slider 30 can be achieved when the first engaging portion 22 and the second engaging portion 31 are engaged with each other. In the present embodiment, the first engaging portion 22 may be provided with the first damping portion 25, the second engaging portion 31 may be provided with the second damping portion 33, and the first damping portion 25 and the second damping portion 33 may be engaged with each other to realize a hovering function, and the folding mechanism 1 may be referred to as a synchronous mechanism having a constant damping. The first damping portion 25 and the second damping portion 33 have a structure with a certain friction coefficient, for example, at least one of the first damping portion 25 and the second damping portion 33 may be made of one or more wear-resistant materials. The first engaging portion 22 and the first damping portion 25 may be integrally formed or may be separately formed. When the first fitting portion 22 and the first damping portion 25 are integrally formed, the first fitting portion 22 and the first damping portion 25 may be manufactured by one process, and for convenience of understanding, the first fitting portion 22 and the first damping portion 25 are named differently. When the first engaging portion 22 and the first damping portion 25 are of a split structure, the first engaging portion 22 and the first damping portion 25 may be formed separately and then assembled together in various manners. Similarly, the second matching portion 31 and the second damping portion 33 may be an integral structure or a split structure, which is not described herein. The present embodiment does not limit the fitting relation between the first fitting portion 22 and the first damper portion 25, and between the second fitting portion 31 and the second damper portion 33.

When an external force is applied to rotate any rotating member 10, the rotating shaft 20 can be driven to rotate, and when the rotating shaft 20 rotates, the first matching portion 22 and the first damping portion 25 can be driven to rotate. The first engaging portion 22 and the second engaging portion 31 are engageable with each other to achieve the conversion between rotation and movement. However, when the rotating member 10 does not rotate a predetermined angle with respect to the sliding member 30, the first damping portion 25 is always rotated and is not in contact with the second damping portion 33. When the rotary member 10 rotates to a certain angle with respect to the slider 30, the first damping portion 25 and the second damping portion 33 start to be kept in contact all the time. When the rotating member 10 rotates relative to the sliding member 30 by a predetermined angle, if the rotating member 10 stops rotating at this time, the first damping portion 25 and the second damping portion 33 are in abutting engagement with each other, and the friction force and the damping force provided by the first damping portion 25 and the second damping portion 33 can keep the rotating member 10 stationary relative to the sliding member 30. The stationary state means that the rotating member 10 is kept stationary, and cannot fall back due to gravity of the rotating member 10, so that a hovering function is realized, limiting of a specific angle is realized, and stability of the folding mechanism 1 is improved. If the rotator 10 is to be rotated continuously, a larger external force is provided, and a part of the external force is used to cancel the damping force, and the rotator 10 is rotated by the rest of the external force. Therefore, the present embodiment is not limited to the case where the rotation of the rotor 10 is stopped when the first damper portion 25 abuts against the second damper portion 33, but the suspension is realized when the rotation of the rotor 10 is stopped at this time. If the applied force is large enough or continues to apply force, the spindle 20 and slide 30 may continue to move. In addition, by providing the first damper portion 25 and the second damper portion 33 on the first fitting portion 22 and the second fitting portion 31 when they are fitted to each other, the overall size of the folding mechanism 1 can be further reduced, and the space occupied by the folding mechanism 1 can be reduced.

Specifically, when the first damping portion 25 abuts against the second damping portion 33, the relative interference dimension of both the first damping portion 25 and the second damping portion 33 is δl. Wherein, as shown in fig. 14, the relative interference dimension refers to the maximum value of the perpendicular distance between the surface of the first damper portion 25 on the side facing away from the first fitting portion 22 and the surface of the second damper portion 33 on the side facing away from the second fitting portion 31. At this time, the first damping portion 25 and the second damping portion 33 form a limit torsion and a damping force F ₀ Associated mainly with δl, e.g. F ₀ =f (δl). Of course F ₀ And also to factors such as the coefficient of friction f. If the torque force F of the user bending the rotary member 10 is greater than F ₀ When the folding mechanism 1 is folded, the rotating shaft 20 can rotate continuously. If the torque force F of the user when bending the rotary member 10 is not greater than F ₀ When the rotating shaft 20 can not rotate continuously, the folding mechanism 1 is in a relatively stable state, thereby realizing the limit of a specific angle。

Alternatively, the above-mentioned "preset angle" may be any angle in the range of 0 to 90 °, and the function of hovering may be achieved by the folding mechanism 1 in any angle in the process from the unfolded state to the folded state. Further alternatively, the preset angle may be 0 °, 15 °, 30 °, 45 °, 60 °, 90 °, and so on. For example, the rotator 10 rotates 0 ° relative to the slider 30, i.e. hovering is achieved when the folding mechanism 1 is in the unfolded state. Or the rotator 10 is rotated 90 ° relative to the slider 30, i.e. hovering is achieved when the folding mechanism 1 is in a folded state. Or the rotating member 10 rotates 45 ° relative to the sliding member 30, i.e. hovering is achieved during the folding mechanism 1 is in the unfolded state to the folded state. In addition, the preset angle may be either an angle at which the rotary member 10 rotates clockwise with respect to the sliding member 30 or an angle at which the rotary member 10 rotates counterclockwise with respect to the sliding member 30. At this time, if the angle between the two rotating members 10 is considered, the folding mechanism 1 can realize limit and hover within the range of 0-360 degrees. When the folding mechanism 1 is in the unfolded state, the angle between the two rotating members 10 is 180 °. When the folding mechanism 1 is in the folded state, the angle between the two rotary members 10 is 0 ° or 360 °.

Alternatively, since the first fitting portion 22 and the second fitting portion 31 are a combination of the screw portion 220 and the screw groove 310. Thus, one of the first damping portion 25 and the second damping portion 33 may be disposed on the threaded portion 220, and the other is disposed on the groove wall of the threaded groove 310. For example, the first damper portion 25 is provided in the screw portion 220, and the second damper portion 33 is provided in the screw groove 310. Alternatively, the first damping portion 25 is provided on the screw portion 220, and the second damping portion 33 is provided on the screw groove 310. Further alternatively, one of the first damping portion 25 and the second damping portion 33 includes a damping fin, and the other includes a limit boss. For example, when the first damping portion 25 is a damping sheet, the second damping portion 33 is a limiting boss. Alternatively, the first damping portion 25 is a positioning boss, and the second damping portion 33 is a damping fin. In summary, the matching relationship of the present embodiment is a combination of the threaded portion 220 and the threaded groove 310, and a combination of the damping fin and the limiting boss.

In the present embodiment, only the first engaging portion 22 is used as the screw portion 220, the first damping portion 25 is used as a damping sheet, the second engaging portion 31 is used as the screw groove 310, and the second damping portion 33 is used as a limiting boss. Further alternatively, the depth of the thread groove 310 is greater than the height of the thread part 220, such that when the rotation shaft 20 rotates relative to the slider 30 and does not rotate by a predetermined angle, the thread part 220 rotates within the thread groove 310 and is engaged with the groove wall of the thread groove 310. However, because the depth of the thread groove 310 is large, the damping fin on the thread part 220 does not contact the bottom wall of the thread groove 310, and the cooperation between the thread part 220 and the thread groove 310 is not affected, so that the normal running of the rotation is ensured. However, when the rotating member 10 rotates by a predetermined angle relative to the sliding member 30, not only the threaded portion 220 and the threaded groove 310 are in abutting engagement with each other, but also the damping fin and the limiting boss are in contact with each other, thereby realizing the hovering function.

Referring to fig. 14 again, in the present embodiment, the first damping portion 25 includes a plurality of first sub-damping portions 250 disposed at intervals along the axial direction D of the rotating shaft 20, the second damping portion 33 includes a plurality of second sub-damping portions 330 disposed at intervals along the axial direction D of the rotating shaft 20, and when the rotating member 10 rotates to the preset angle relative to the sliding member 30, the first sub-damping portions 250 abut against the second sub-damping portions 330.

The first damping portion 25 and the second damping portion 33 may include a plurality of sub-damping portions, that is, a plurality of first sub-damping portions 250 and a plurality of second damping portions 33, respectively, and the plurality of sub-damping portions are disposed at intervals along the axial direction D of the rotating shaft 20. Thus, when the rotating shaft 20 rotates, the plurality of first sub-damping portions 250 also rotate synchronously, and when the rotating member 10 does not rotate the above-mentioned predetermined angle relative to the sliding member 30, the plurality of first sub-damping portions 250 do not abut against the plurality of second sub-damping portions 330. When the rotating member 10 rotates relative to the sliding member 30 by the predetermined angle, the first sub-damping portions 250 and the second sub-damping portions 330 can be abutted to further improve the damping force, so as to improve the hovering effect and stabilize the folding mechanism 1.

In addition, the above-mentioned plurality of first sub-damping portions 250 and the plurality of second sub-damping portions 330 refer to that not all of the first sub-damping portions 250 are always in contact with all of the second sub-damping portions 330, and the number of the first sub-damping portions 250 in contact with the second sub-damping portions 330 changes during the movement of the slider 30, but the plurality of first sub-damping portions 250 are in contact with the plurality of second sub-damping portions 330 as a whole. For example, the first damping portion 25 includes 5 first sub-damping portions 250 disposed at intervals along the axial direction D of the rotating shaft 20, the second damping portion 33 includes 5 second sub-damping portions 330 disposed at intervals along the axial direction D of the rotating shaft 20, and the first damping portion 250 may abut against the 5 second sub-damping portions 330 when abutting for the first time, and the first damping portion 25 may be disposed offset from the second damping portion 33 due to a movement of the slider 30 by a certain distance when abutting for the second time, so that the 4 first sub-damping portions 250 abut against the 4 second sub-damping portions 330. As the slider 30 moves, the number of the first and second sub-damping portions 250 and 330 abutted against each other may decrease, and vice versa.

Referring to fig. 15, fig. 15 is a schematic perspective view of a rotating shaft according to another embodiment of the present application. In the present embodiment, at least one of the first damping portion 25 and the second damping portion 33 is provided in a plurality and is disposed at intervals along the circumferential direction of the rotating shaft 20.

In the present embodiment, the number of the first damper portions 25 may be plural, the number of the second damper portions 33 may be plural, or the number of the first damper portions 25 and the number of the second damper portions 33 may be plural at the same time, and the first damper portions and the second damper portions may be disposed at intervals in the axial direction of the rotary shaft 20. Therefore, the first damping portion 25 and the second damping portion 33 are not simultaneously contacted, but are contacted one by one as the rotation proceeds. Therefore, the device has a plurality of different preset angles, and is contacted under the plurality of different preset angles, so that the hovering effect is realized. As shown in fig. 15, the number of the first damping portions 25 is 3 and spaced apart by 30 °. When the first damping part 25 is rotated by 30 degrees to realize hovering, the second first damping part 25 can be rotated by 60 degrees, and the third first damping part 25 can be rotated by 90 degrees to realize hovering, so that the folding mechanism 1 can realize hovering under three different angles.

Referring to fig. 16, fig. 16 is an exploded view of fig. 14. In this embodiment, the first sub-damping portion 250 and the second sub-damping portion 330 include a wedge surface 2511, an arc surface 2512, and an abutment surface 2513, and two ends of the arc surface 2512 are respectively connected to the wedge surface 2511 and the abutment surface 2513; when the rotating member 10 rotates to the preset angle relative to the sliding member 30, the two abutment surfaces 2513 abut.

There are a plurality of surfaces for the first sub-damping part 250 and the second sub-damping part 330: the wedge surface 2511, the arc surface 2512 and the abutment surface 2513, wherein the wedge surface 2511 and the abutment surface 2513 can be connected with the first matching portion 22 or the second matching portion 31, and two ends of the arc surface 2512 are respectively connected with the wedge surface 2511 and the abutment surface 2513. The outer surfaces of the first sub-damping portion 250 and the second sub-damping portion 330 are shared by the wedge surface 2511, the arc surface 2512, and the abutment surface 2513. When the rotary member 10 rotates to a certain angle relative to the sliding member 30, the first sub-damping portion 250 and the second sub-damping portion 330 may be two wedge surfaces 2511 in contact at this time, and since the wedge surfaces 2511 are inclined surfaces, the first sub-damping portion 250 can better move on the second sub-damping portion 330, so as to reduce the rotation difficulty of the rotary member 10. When the rotary member 10 continues to rotate, the two arc surfaces 2512 can contact each other, and at this time, the radian of the arc surface 2512 can be utilized to reduce the risk of damage to the first and second sub-damping portions 250 and 330 and improve the service lives of the first and second sub-damping portions 250 and 330. Then, when the rotator 10 rotates to a preset angle, the two abutting surfaces 2513 are mutually in abutting fit, so that a hovering function is realized. In addition, if the rotating member 10 wants to rotate, the two arc surfaces 2512 can also reduce the difficulty of rotating the rotating member.

In addition, at least one of the first sub-damper 250 and the second sub-damper 330 has elasticity, and the elasticity is used to make the respective surfaces of the first sub-damper 250 and the second sub-damper 330 better contact, so that the rotation of the rotator 10 can be smoothly performed. When the external force is continuously applied after the first damping portion 25 abuts against the second damping portion 33, the first damping portion 25 may be separated from the second damping portion 33, and the rotation may be continued.

The above details the relevant structure of the rotor 10, the shaft 20, and the slider 30. Next, the present application will continue to describe other structural elements of the folding mechanism 1 that may also be present.

Referring to fig. 17-18 together, fig. 17 is a schematic perspective view of a folding mechanism according to another embodiment of the present application. Fig. 18 is a schematic perspective view of a first assembly according to an embodiment of the present application. In this embodiment, the folding mechanism 1 further includes a first assembly 40 disposed on one side of the sliding member 30 along the moving direction of the sliding member 30, and one end of the rotating shaft 20 is rotatably connected to the first assembly 40.

The first fitting 40 serves as a fixed fitting in the folding mechanism 1, and various structural members can be fitted to the first fitting 40. The present embodiment is not limited to the shape, structure, material, and other parameters of the first fitting 40, as long as fitting can be achieved. In this embodiment, one end of the rotating shaft 20 may be rotatably connected to the first fitting 40, that is, the rotating shaft 20 is mounted to the first fitting 40, and the rotating shaft 20 may rotate relative to the first fitting 40, so that the first fitting 40 does not affect the rotational movement.

Alternatively, a first rotating space 41 may be formed on the first assembly member 40, and one end of the rotating shaft 20 is disposed in the first rotating space 41 to perform assembly and rotation. Further alternatively, the first rotation space 41 includes, but is not limited to, a first rotation hole formed at opposite sides of the first fitting 40, or a rotation groove formed at one side of the first fitting 40.

In addition, the first assembly member 40 is disposed on one side of the sliding member 30 along the moving direction of the sliding member 30, so that not only the assembly between the first assembly member 40 and the rotating shaft 20 can be facilitated, but also the subsequent addition of other structural members, such as an elastic member, between the sliding member 30 and the first assembly member 40 can be facilitated. Alternatively, the first fitting 40 is provided on the side of the slider 30 facing away from the rotary member 10.

Referring to fig. 18-20 together, fig. 19 is a schematic perspective view of a folding mechanism according to another embodiment of the present application. Fig. 20 is a partial exploded view of fig. 19. In this embodiment, the folding mechanism further includes a guide rail 50, an extending direction of the guide rail 50 is parallel to the axial direction D of the rotating shaft 20, and the guide rail 50 cooperates with the sliding member 30 to move the sliding member 30 along the axial direction D.

A guide rail 50 may be added to the first assembly 40. Wherein the guide rail 50 mainly plays a role of limiting and guiding movement. The guide rail 50 may be connected to the first fitting 40. Reference herein to "coupled" includes, but is not limited to, fixedly coupled or detachably coupled to other means of coupling. When the guide rail 50 is fixedly coupled to the first fitting 40, the fixing member is integrally constructed with the first fitting 40, but the fixing member is artificially differently named from the first fitting 40 for convenience of understanding. When the guide rail 50 is detachably connected to the first assembly 40, as shown in fig. 19-20, the guide rail 50 and the first assembly 40 may be detachably connected to the guide rail 50 and the first assembly 40 by providing screw holes 52 on the guide rail 50 and the first assembly 40, and installing screws 51 in the screw holes 52. Of course, in other embodiments, the detachable connection may be achieved by a snap connection or the like. The present embodiment is not limited to the shape, structure, material, and other parameters of the guide rail 50, as long as the limit function can be achieved.

As for the position of the guide rail 50, the present embodiment can make at least part of the guide rail 50 be disposed between the two rotating shafts 20 and at the same time be disposed on one side of at least part of the sliding member 30, and as can be seen from fig. 19, the guide rail 50 is disposed above at least part of the sliding member 30. Thus, when the folding mechanism 1 moves, the rotating shaft 20 cooperates with the sliding member 30 to move the sliding member 30 along the axial direction D of the rotating shaft 20, and at this time, since the guide rail 50 is disposed above at least a portion of the sliding member 30, that is, the guide rail 50 is disposed on one side of the sliding member 30 perpendicular to the moving direction of the sliding member 30, the sliding member 30 is restricted from moving toward the direction in which the sliding member 30 is stacked to the guide rail 50 (as shown by D5 in fig. 19), that is, the sliding member 30 is restricted from moving upward. In other words, the sliding member 30 is prevented from moving in a direction away from the two rotating shafts 20, and the sliding member 30 is prevented from being separated from the rotating shafts 20 when moving.

The above-mentioned "at least part of the guide rail 50 is disposed between the two rotating shafts 20" is to be understood as that all the guide rail 50 is disposed between the two rotating shafts 20, or that part of the guide rail 50 is disposed between the two rotating shafts 20, and the rest of the guide rail 50 is disposed outside the two rotating shafts 20. By "the guide rail 50 is provided on one side of at least part of the slide members 30" is understood that the guide rail 50 is provided on one side of all the slide members 30, or the guide rail 50 is provided on one side of part of the slide members 30, while the remaining slide members 30 and the guide rail 50 have other positional relationships.

In addition, referring to fig. 18 and 20 again, in the present embodiment, the sliding member 30 has a sliding groove 34 on the one side, at least a portion of the guide rail 50 is disposed in the sliding groove 34, and the extending direction of the sliding groove 34 is parallel to the moving direction of the sliding member 30.

In this embodiment, the sliding groove 34 may be formed on a side of the sliding member 30 adjacent to the guide rail 50, that is, an upper side of the sliding member 30, and at least a portion of the guide rail 50 may be disposed in the sliding groove 34. This not only reduces the overall thickness of the folding mechanism 1, but also restricts the movement of the slider 30 in a direction away from the two rotational shafts 20, i.e., vertically upward, when the folding mechanism 1 is in motion, since the extending direction of the slide groove 34 is parallel to the moving direction of the slider 30 (as shown by D2 in fig. 20). The groove walls of the slide groove 34 may also be used to restrict the movement of the slider 30 in the direction in which the two shafts 20 are aligned (as shown by D4 in fig. 20), i.e., in the horizontal direction. The sliding member 30 can only slide in the extending direction of the sliding groove 34, so that the sliding member 30 moves along the axial direction D of the rotating shaft 20, and the moving effect of the sliding member 30 is improved. Therefore, the guide rail 50 in the present embodiment can not only play a role of limiting but also play a role of assisting movement.

The above-mentioned "at least part of the guide rail 50 is provided in the slide groove 34" is to be understood as meaning that all the guide rail 50 is provided in the slide groove 34 or that part of the guide rail 50 is provided in the slide groove 34. The present embodiment is not limited thereto.

Alternatively, as shown in fig. 18, the same side of the first assembly member 40 as the sliding member 30 with the sliding groove 34 may be provided with a matching groove 42, so that at least part of the guide rail 50 is disposed in the matching groove 42 and the sliding groove 34, thereby reducing the overall thickness of the folding mechanism 1 and simplifying the structure of the guide rail 50.

Referring to fig. 18 together with fig. 21-22, fig. 21 is a schematic perspective view of a folding mechanism according to another embodiment of the present application. Fig. 22 is a schematic perspective view of a slider according to an embodiment of the present application. Fig. 21 is a schematic perspective view of the folding mechanism 1 in a bottom view. In this embodiment, the folding mechanism 1 further includes a first fitting 40 connected to the guide rail 50, and a first elastic member 60, where the rotating shaft 20 is rotatably connected to the first fitting 40, and the first elastic member 60 is disposed between the first fitting 40 and the sliding member 30.

A first elastic member 60 may be added to the first assembly member 40. The first elastic member 60 has a certain elasticity. Alternatively, first resilient member 60 includes, but is not limited to, a coil spring, a spiral spring, a leaf spring, a belleville spring, and the like. Of course, in other embodiments, the first elastic member 60 may be other elastic objects, such as elastic foam, sponge, elastic products made of various polymer materials, and the like. In the present embodiment, the number of the first elastic members 60 may be one or a plurality. The present embodiment is schematically described with only one first elastic member 60.

And, at least part of each first elastic member 60 is provided between the first fitting 40 and the slider 30. Thus, during the movement of the folding mechanism 1, when the rotating member 10 rotates with the rotating shaft 20 to move the sliding member 30, the sliding member 30 moves along the axial direction D of the rotating shaft 20, that is, the sliding member 30 moves in a direction away from or toward the first fitting 40. Therefore, the first elastic member 60 is driven to extend or contract during the movement of the sliding member 30, so that the first elastic member 60 generates a tensile force or a compressive force, respectively. The first elastic member 60 also gives the slider 30 a repulsive force. Therefore, when the rotating member 10 rotates under the action of external force, the rebound force can generate damping effect on the rotation of the rotating member 10, thereby improving the hand feeling of the user. And as the moving distance of the sliding member 30 increases, the deformation amount of the first elastic member 60 increases, and the damping effect increases. In addition, when the external force on the rotating member 10 is removed, if there is no other fixing structure, the folding mechanism 1 has a tendency to return to its original state due to the presence of the repulsive force, thereby realizing the function of automatic reset.

The above-mentioned "at least part of each first elastic member 60 is disposed between the first fitting 40 and the sliding member 30" means that all of each first elastic member 60 is disposed between the first fitting 40 and the sliding member 30, or that part of each first elastic member 60 is disposed between the first fitting 40 and the sliding member 30, and the rest of the first elastic member 60 is located at other positions.

Alternatively, in the present embodiment, when the rotating member 10 is not rotated, that is, the initial state of the first elastic member 60 may be a balanced state, neither a tensile force nor a compressive force is generated by the first elastic member 60. Of course, in other embodiments, the first elastic member 60 may be in a compressed state or in a stretched state in the initial state if other structural members are engaged. The present embodiment is not limited thereto.

Optionally, as shown in fig. 18, a first guide shaft 35 is disposed on a side of the first assembly member 40 near the sliding member 30, as shown in fig. 22, a second guide shaft 43 is disposed on a side of the sliding member 30 near the first assembly member 40, and the first elastic member 60 is sleeved with the first guide shaft 35 and the second guide shaft 43 to realize positioning assembly, so that the first elastic member 60 is prevented from being deformed along the non-axial direction D in the deformation process, and the stability of deformation is improved.

Next, an embodiment in which a portion of each first elastic member 60 is provided between the first fitting 40 and the slider 30 will be described in detail. Referring again to fig. 21-22, a first groove 36 is formed on a side of the sliding member 30 adjacent to the first fitting 40, and a portion of the first elastic member 60 is disposed in the first groove 36. In other words, the first groove 36 penetrates the surface of the sliding member 30 near the side of the first fitting 40, that is, the opening direction of the first groove 36 faces the first fitting 40, and a part of the first elastic member 60 is accommodated by the first groove 36, so that the distance between the first fitting 40 and the sliding member 30 is reduced, the folding mechanism 1 is made more compact, and the overall size of the folding mechanism 1 is reduced.

Alternatively, the second guide shaft 43 may be provided on the wall of the first groove 36 to enable the assembly of the first elastic member 60.

Alternatively, the first groove 36 may be disposed at a side of the sliding member 30 facing away from the guide rail 50, i.e., the first groove 36 may penetrate through a surface of the sliding member 30 facing away from the guide rail 50, and the opening of the first groove 36 may face away from the guide rail 50 in addition to the first fitting 40, so as to reduce the difficulty in assembling the second elastic member 80.

Referring to fig. 23-26 together, fig. 23 is a schematic perspective view of a folding mechanism according to another embodiment of the present disclosure. Fig. 24 is a schematic perspective view of another direction of fig. 23. Fig. 25 is a partial exploded view of fig. 23. Fig. 26 is a schematic perspective view of a second assembly according to an embodiment of the present application. Fig. 23 is a schematic perspective view of the folding mechanism 1 in a plan view. Fig. 24 is a schematic perspective view of the folding mechanism 1 in a bottom view. In this embodiment, the folding mechanism 1 further includes a second fitting 70 connected to the guide rail 50, and a second elastic member 80, where the second fitting 70 is disposed on a side of the sliding member 30 facing away from the first fitting 40, and the second elastic member 80 is disposed between the second fitting 70 and the sliding member 30.

A second fitting 70 and a second elastic member 80 may be added to the first fitting 40. The second fitting 70 serves as a stationary fitting in the folding mechanism 1, and various structural components can be fitted to the second fitting 70. The shape, structure, material, and other parameters of the second fitting 70 are not limited in this embodiment, as long as fitting can be achieved. The second assembly member 70 is disposed on a side of the sliding member 30 away from the first assembly member 40, the sliding member 30 is disposed between the first assembly member 40 and the second assembly member 70, and an arrangement direction of the first assembly member 40 and the second assembly member 70 is parallel to a moving direction of the sliding member 30 (as shown in D2 in fig. 23), so that assembly of various structural members is facilitated, and a moving distance of the sliding member 30 can be limited by using the first assembly member 40 and the second assembly member 70.

Optionally, at least part of the second fitting 70 is provided between the two rotating members 10, making the folding mechanism 1 more compact, reducing the size of the folding mechanism 1. Further alternatively, the shaft 20 is rotatably coupled to the second fitting 70. Of course, in other embodiments, the shaft 20 may be mounted on other components, and the present embodiment is not limited thereto.

Optionally, the rail 50 connects the first fitting 40 with the second fitting 70, thereby further improving the connection performance of the rail 50. Reference herein to "coupled" includes, but is not limited to, fixedly coupled or detachably coupled to other means of coupling. When the guide rail 50 is fixedly coupled to the second fitting 70, the fixing member is integrally formed with the second fitting 70, but the fixing member is artificially differently named from the second fitting 70 for convenience of understanding. When the guide rail 50 is detachably connected to the second assembly 70, as shown in fig. 23 and 25, the guide rail 50 and the second assembly 70 may be detachably connected to the guide rail 50 and the second assembly 70 by providing screw holes 52 on the guide rail 50 and the second assembly 70, and installing screws 51 in the screw holes 52. Of course, in other embodiments, the detachable connection may be achieved by a snap connection or the like.

For the second elastic member 80, the second elastic member 80 has a certain elasticity. Alternatively, second resilient member 80 includes, but is not limited to, a coil spring, a spiral spring, a leaf spring, a belleville spring, and the like. Of course, in other embodiments, the second elastic member 80 may be other elastic objects, such as elastic foam, sponge, elastic products made of various polymer materials, and the like. In the present embodiment, the number of the second elastic members 80 may be one or more. The present embodiment is schematically described with only one number of second elastic members 80.

And, at least a portion of each second elastic member 80 is provided between the second fitting 70 and the slider 30. Thus, during the movement of the folding mechanism 1, when the rotating member 10 rotates with the rotating shaft 20 to move the sliding member 30, the sliding member 30 moves along the axial direction D of the rotating shaft 20, that is, the sliding member 30 moves toward or away from the second fitting 70. Therefore, the second elastic member 80 is driven to extend or contract during the movement of the sliding member 30, so that the second elastic member 80 generates a tensile force or a compressive force, respectively. The second elastic member 80 also gives the slider 30 a repulsive force. Therefore, when the rotating member 10 rotates under the action of external force, the rebound force can generate damping effect on the rotation of the rotating member 10, thereby improving the hand feeling of the user. And as the moving distance of the slider 30 increases, the amount of deformation of the second elastic member 80 increases, and the damping effect increases. In addition, when the external force on the rotating member 10 is removed, if there is no other fixing structure, the folding mechanism 1 has a tendency to return to its original state due to the presence of the repulsive force, thereby realizing the function of automatic reset.

The above-mentioned "at least part of each second elastic member 80 is disposed between the second fitting 70 and the sliding member 30" means that all of each second elastic member 80 is disposed between the second fitting 70 and the sliding member 30, or that part of each second elastic member 80 is disposed between the first fitting 40 and the sliding member 30, and the rest of the second elastic member 80 is disposed at other positions.

Alternatively, when the rotating member 10 is not rotated in the present embodiment, that is, the initial state of the second elastic member 80 may be the balanced state, neither a tensile force nor a compressive force is generated by the second elastic member 80. Of course, in other embodiments, the second elastic member 80 may be in a compressed state or in a stretched state in the initial state if other structural members are engaged. The present embodiment is not limited thereto.

Optionally, as shown in fig. 26, a third guide shaft 71 is disposed on a side, close to the sliding member 30, of the second assembly member 70, and as shown in fig. 22, a fourth guide shaft 37 is disposed on a side, close to the second assembly member 70, of the sliding member 30, and the second elastic member 80 is sleeved with the third guide shaft 71 and the fourth guide shaft 37 to achieve positioning assembly, so that the second elastic member 80 is prevented from being deformed along the non-axial direction D in the deformation process, and the stability of deformation is improved.

Next, an embodiment in which a portion of each second elastic member 80 is provided between the second fitting 70 and the slider 30 will be described in detail.

Referring to fig. 22 and 24 again, in this embodiment, a second groove 38 is formed on a side of the sliding member 30 adjacent to the second fitting 70, and a portion of the second elastic member 80 is disposed in the second groove 38. In other words, the second groove 38 penetrates the surface of the sliding member 30 near the side of the second fitting member 70, that is, the opening direction of the second groove 38 faces the second fitting member 70, and a part of the second elastic member 80 is accommodated by the second groove 38, so that the distance between the second fitting member 70 and the sliding member 30 is reduced, the folding mechanism 1 is made more compact, and the overall size of the folding mechanism 1 is reduced.

Alternatively, the fourth guide shaft 37 may be provided on the wall of the second groove 38 to enable the assembly of the second elastic member 80.

Alternatively, the second groove 38 may be disposed at a side of the sliding member 30 facing away from the guide rail 50, that is, the second groove 38 may penetrate through a surface of the sliding member 30 facing away from the guide rail 50, and the opening of the second groove 38 may face away from the guide rail 50 in addition to the second fitting 70, so as to reduce the difficulty in assembling the second elastic member 80.

Alternatively, the first groove 36 and the second groove 38 are spaced apart, that is, the first groove 36 and the second groove 38 may be separated by a portion of the sliding member 30, so that the first elastic member 60 and the second elastic member 80 disposed in the first groove 36 and the second groove 38 do not interfere with each other.

In this embodiment, the folding mechanism 1 has an expanded state in which the extending direction of the rotating member 10 is parallel to the arrangement direction of the two rotating shafts 20, and a folded state in which the extending direction of the rotating member 10 is perpendicular to the arrangement direction of the two rotating shafts 20, and when the folding mechanism 1 is in the expanded state or the folded state, the first elastic member 60 and the second elastic member 80 are both in a compressed state and have the same elastic coefficient.

The unfolding and folding states of the folding mechanism 1 are described in detail in the present application, and the description of this embodiment is omitted here. As can be seen from the above description, the folding mechanism 1 may further include a first fitting 40, a second fitting 70, a first elastic member 60, and a second elastic member 80, where the first elastic member 60 is located between the first fitting 40 and the sliding member 30, the second elastic member 80 is located between the second fitting 70 and the sliding member 30, and the first elastic member 60 and the second elastic member 80 are correspondingly deformed during the whole moving process, so as to have different deformation states.

The entire movement process of the slider 30 mentioned above can be understood as a process of the folding mechanism 1 from the folded state to the unfolded state, or a process of the folding mechanism 1 from the unfolded state to the folded state. The present embodiment may enable the first elastic member 60 and the second elastic member 80 to be in a compressed state when the folding mechanism 1 is in the unfolded state or the folded state. It can also be understood that the first elastic member 60 and the second elastic member 80 are in a compressed state at the beginning and ending stages of the whole movement of the folding mechanism 1, and thus the first elastic member 60 and the second elastic member 80 are in a compressed state throughout the whole movement.

And since it has been mentioned above that the sliding member 30 is disposed between the first fitting 40 and the second fitting 70, the first groove 36 and the second groove 38 are disposed on opposite sides of the sliding member 30, one end of the first elastic member 60 is disposed in the first groove 36, and the other end is disposed on the first fitting 40. One end of the second elastic member 80 is disposed in the second recess 38, and the other end is disposed on the second fitting 70. At least a portion of the first elastic member 60 is disposed opposite at least a portion of the second elastic member 80. In this way, since the first elastic member 60 and the second elastic member 80 are always in the compressed state, the first elastic member 60 and the second elastic member 80 have an initial pre-tightening force. For example, the first elastic member 60 has an initial preload G ₀₁ The second elastic member 80 has an initial pre-tightening force G ₀₂ Therefore, the two elastic members dampen the damping force G of the entire folding mechanism 1 ₀ The method comprises the following steps: g ₀ ＝G ₀₁ +G ₀₂ 。

In addition, since the folding mechanism 1 changes the compression force of the first elastic member 60 and the second elastic member 80 during the movement process, that is, the movement process of the sliding member 30, the pre-tightening force of the first elastic member 60 and the second elastic member 80 is changed. However, since the elastic coefficients of the first elastic member 60 and the second elastic member 80 are the same, the forces of the first elastic member 60 and the second elastic member 80 are the same, and the directions are opposite, so that the sum of the pretension forces of the first elastic member 60 and the second elastic member 80 after being changed is constant G ₀ . Therefore, the folding mechanism 1 has certain damping in the whole movement process, so that the torsion is stable, the hand feeling of a user is smooth and not loose when the user bends, the force is always the same, and the experience of the user when the user bends is improved.

The above mentioned torsion forces F and F of the rotary member 10 when it is rotated and bent ₀ In the present embodiment, the damping force G of the whole folding mechanism 1 is introduced by the first elastic member 60 and the second elastic member 80 ₀ At this time, if the torque force F is greater than F ₀ And G ₀ And the rotating shaft 20 can continue to rotate, and the folding mechanism 1 can continue to bend. If the torsion force F is not greater than F ₀ And G ₀ And the rotating shaft 20 cannot continue to rotate, so that the folding mechanism 1 is in a relatively stable state, and hovering and limiting under a specific angle are realized.

Alternatively, the initial preload G of the first resilient member 60 ₀₁ With the second elastic member 80 having an initial preload G ₀₂ The present embodiment is not limited here, and may be the same or different.

In addition, referring to fig. 24 again, in the present embodiment, a movement limit stroke of the slider 30 along the axial direction D of the rotation shaft 20 is smaller than a maximum deformation amount of the first elastic member 60 and a maximum deformation amount of the second elastic member 80.

In addition to the relationship between the first elastic member 60 and the second elastic member 80 with the initial pre-tightening force, the present embodiment may limit the movement limit stroke of the sliding member 30 according to the maximum deformation amount, i.e. the limit stroke, of the first elastic member 60 and the second elastic member 80. Because the components, materials, sizes and technological preparation methods of each elastic piece are different, each elastic piece has the maximum deformation of the elastic piece. For example, the first elastic member 60 has a first limit stroke m1, i.e., the maximum deformation amount of the first elastic member 60 itself is reached. The second elastic member 80 has a second limit stroke m2, i.e. the maximum deformation of the second elastic member 80 itself is reached. When the sliding member 30 moves in the axial direction D (as shown in D2 in fig. 24) of the rotating shaft 20, the first elastic member 60 and the second elastic member 80 are deformed to approach to the limit stroke thereof, and the present embodiment can make the movement limit stroke of the sliding member 30 smaller than the minimum value of the first limit stroke and the second limit stroke, so that the sliding member 30 does not exceed the limit stroke of any elastic member during movement, thereby ensuring the damping force G generated by the two elastic members ₀ Keep unchanged, increase the resistanceNile G ₀ Is stable.

Referring to fig. 27, fig. 27 is a schematic partial perspective view of a folding mechanism according to another embodiment of the present application. In this embodiment, the folding mechanism 1 further includes a rotating member 100 rotatably connected to the first assembly 40, where the rotating member 100 and the rotating member 10 are both used to connect to a housing and can rotate under rotation of the housing, and a rotation center line 111 of the rotating member 100 coincides with or has a distance from an axis 21 of the rotating shaft 20.

In addition to the folding mechanism 1 having the rotating member 10, a rotating member 100 may be added. The main function of the rotary member 100 is the same as that of the rotary member 10, and also functions as rotation and spin. The rotation direction of the rotating member 100 is parallel to the rotation direction of the rotating member 10 (as shown in D1 in fig. 30), so that the rotating member 100 and the rotating member 10 can be connected to the housing together to move in cooperation with the housing, and rotate under the drive of the housing, thereby improving the stability of the movement of the housing. The rotating member 100 is rotatably connected to the first fitting 40, i.e., the first fitting 40 is rotatably connected to not only the rotating shaft 20, thereby rotatably connecting the rotating member 10, but also the rotating member 100, such that both the rotating member 10 and the rotating member 100 rotate based on the first fitting 40. As can be seen from the above, the rotation member 10 rotates to drive the rotation shaft 20, and the rotation shaft 20 rotates around the axis 21 of the rotation shaft 20. The extension direction of the axis 21 mentioned here can be understood as the axial direction D of the shaft 20 mentioned above, both of which are essentially in one sense.

The rotating member 100 rotates around the rotation center line 111 when rotating on the first assembly member 40, where the rotation center line 111 may be the axis of the rotating member 100 itself, or may be an axis of a structural member on which the rotating member 100 is sleeved, for example, the rotating member 100 is sleeved with the sleeve 110, so that the rotation center line 111 is the axis of the sleeve 110. For example, the axis 21 and the rotation center line 111 may be arranged in a coincident manner, that is, the rotation member 10 and the rotation center of the rotation member 100 are arranged concentrically, in other words, the rotation member 10 and the rotation member 100 move concentrically, when the rotation member 10 and the rotation member 100 rotate at the same angle, no displacement deviation occurs, and the invention can be applied to a U-shaped flexible folding screen mobile phone. When the space is provided between the axis 21 and the rotation center line 111, that is, the rotation axes of the rotation member 10 and the rotation member 100 are arranged in a different center, in other words, the rotation member 10 and the rotation member 100 eccentrically move, when the rotation member 10 and the rotation member 100 rotate at the same angle, displacement deviation can be generated between the rotation member 10 and the rotation member 100, and the device can be applied to a water drop type folding screen mobile phone, the rotation member 10 controls the direction of the shell in the rotation process, and the rotation member 100 controls the relative distance between the folding mechanism 1 and the set point of the shell to limit the movement of the radial direction of the shell. The present embodiment is schematically described with the axis 21 overlapping the rotation center line 111. As for how the folding mechanism 1 is mated with the housing when the present embodiment is applied to a water-drop type flexible folding screen mobile phone, the present embodiment is not described in detail here.

Referring to fig. 28-29 together, fig. 28 is an exploded view of a rotary member, a sleeve, and a first assembly according to an embodiment of the present application. Fig. 29 is an exploded view of a rotary member and a first fitting member in another embodiment of the present application. In this embodiment, the folding mechanism 1 further includes a sleeve 110 rotatably connected to the first assembly 40, and the rotating member 100 is sleeved on the sleeve 110; alternatively, one of the first fitting 40 and the rotating member 100 is provided with a rotating block 120, and the other of the first fitting 40 and the rotating member 100 is provided with a rotating groove 46.

As can be seen from the above, the rotary member 100 can be rotatably connected to the first fitting 40 regardless of whether the rotary member 100 and the rotary member 10 are concentrically disposed. The present embodiment thus provides a variety of implementations. In one implementation, the sleeve 110 may be added, such that the sleeve 110 is rotatably coupled to the first fitting 40, and such that the rotating member 100 is sleeved on the sleeve 110, thereby enabling the rotating member 100 to rotate relative to the first fitting 40.

Alternatively, the rotating member 100 may be provided with a rotating hole 130, and the rotating member 100 is sleeved on the shaft sleeve 110 through the rotating hole 130. And a rotation space 44 is formed on the first assembly member 40, a second rotation space 45 is formed on a side wall 92 of the rotation space 44, and an end portion of the sleeve 110 is disposed in the second rotation space 45, thereby completing the assembly. The two ends of the shaft sleeve 110 may have one end disposed in the second rotation space 45 and the other end disposed in the first rotation space 41 together with the rotation shaft 20. In this case, the rotor 10 and the rotor 100 may be disposed concentrically or eccentrically. Further alternatively, when the rotating member 10 is concentrically disposed with the rotating member 100, the shaft sleeve 110 may also be a part of the rotating shaft 20, that is, the rotating shaft 20 penetrates through the first rotating hole of the first rotating space 41 and is disposed in the second rotating space 45, and then the part of the rotating shaft 20 located between the first rotating space 41 and the second rotating space 45 may be understood as the shaft sleeve 110.

In another implementation, rotation may be achieved by the form of a rotating block 120 or a rotating slot 46. For example, a rotation block 120 may be provided on the first fitting 40, and a rotation groove 46 may be provided on the rotation member 100. Or a rotation groove 46 is provided in the first fitting 40 and a rotation block 120 is provided in the rotation member 100. The position of the rotating block 120 in the rotating groove 46 is not limited in this embodiment, but the rotating groove 46 is provided only in the first assembly 40, and the rotating block 120 is provided in the rotating tool 100 in this embodiment.

The above is a detailed description of the folding mechanism 1 of the present application. In addition to the folding mechanism 1, the present application also describes an electronic device 2 using the folding mechanism 1. Referring to fig. 30, fig. 30 is a side view of an electronic device according to an embodiment of the present application. The present embodiment provides an electronic device 2, including a flexible screen 3, two housings 4, and a folding mechanism 1 provided in the foregoing embodiments of the present application, at least a portion of the folding mechanism 1 is disposed between the two housings 4, and one housing 4 is connected to one rotating member 10, the other housing 4 is connected to the other rotating member 10, and the flexible screen 3 is mounted on the two housings 4.

The above-mentioned kind of the electronic device 2 is mentioned in detail, and the present embodiment is not repeated here. The present embodiment will be schematically described using the electronic device 2 as a flexible folding mobile phone. In this embodiment, by adopting the folding mechanism 1 provided in the foregoing embodiment, one of the shells 4 is connected to one of the rotating members 10, and the other shell 4 is connected to the other rotating member 10, so that when the two rotating members 10 rotate synchronously, the two shells 4 can be driven to rotate synchronously. In this embodiment, the rotor 10 is shown in a broken line in a side view. Thus, the reliability and the synchronization effect of the synchronization of the electronic equipment 2 can be improved, the transmission efficiency is improved, and the rotation idle stroke is reduced. In addition, the synchronous transmission can be realized only by the sliding piece 30, so that the bending radius can be reduced, the distance between the two half flexible screens 3 can be reduced, and the appearance performance can be improved. The flexible folding phone can also be called a page-type flexible screen 3 folding phone.

The number of the folding mechanisms 1 in the document electronic device 2 is not limited in this embodiment, and for example, the number of the folding mechanisms 1 in the electronic device 2 may be one or a plurality of.

Referring to fig. 31-33 together, fig. 31 is a schematic view of a part of an electronic device according to an embodiment of the present application. Fig. 32 is a partial exploded view of fig. 31. Fig. 33 is an exploded view of a bracket, a shaft, and a rotating member according to an embodiment of the present invention. In this embodiment, the folding mechanism 1 further includes a bracket 90 disposed on a side of the guide rail 50 facing away from the sliding member 30, which may also be understood as being disposed on a side of the folding mechanism 1 facing away from the flexible screen. The first fitting 40 and the second fitting 70 are mounted to the bracket 90; the shaft 20 is rotatably connected to the bracket 90, or the shaft 20 is rotatably connected to the second fitting 70.

The support 90 mainly plays a role of supporting and fixing, the support 90 can be arranged on one side of the guide rail 50 away from the sliding piece 30, namely, the sliding piece 30 is arranged between the guide rail 50 and the support 90, and the support 90 can be used for limiting the movement of the sliding piece 30 towards the support 90. In addition, the first assembly member 40 and the second assembly member 70 can be mounted on the bracket 90 in the present embodiment, so as to fix the first assembly member 40 and the second assembly member 70, and realize structural limitation of each structural member mounted on the first assembly member 40 and the second assembly member 70.

Alternatively, as shown in fig. 32, screw holes 52 may be formed at corresponding positions of the bracket 90, and screws 51 may be installed in the screw holes 52 of the guide rail 50, the first fitting 40, and the bracket 90 to achieve the assembly of the guide rail 50, the first fitting 40, and the bracket 90. At the same time, the screw 51 may also be disposed in the screw hole 52 of the guide rail 50, the second assembly 70, and the bracket 90 to realize the assembly of the guide rail 50, the second assembly 70, and the bracket 90, and finally realize the stable connection between the structural member and the bracket 90.

As can be seen from the above, one end of the shaft 20 is rotatably connected to the first fitting 40, and the other end of the shaft 20 is rotatably connected to the bracket 90, and is also rotatably connected to the second fitting 70. The present embodiment is not limited to this. The present embodiment is schematically illustrated with the other end of the rotary shaft 20 being rotated to connect the bracket 90. Optionally, as shown in fig. 33, the support 90 is provided with a rotating seat 93, the rotating seat 93 is provided with a second rotating hole 930, and the other single piece of the rotating shaft 20 penetrates through the second rotating hole 930 to realize rotation of the rotating shaft 20, so as to realize limit on the non-rotation direction of the rotating member 10. Further alternatively, the rotating seat 93 is provided on the body 91 of the bracket 90. Further alternatively, the rotating shaft 20 includes a first portion 23 and a second portion 24, a part of the second portion 24 is provided with a flat structure 240, and the remaining second portion 24 penetrates through the second rotating hole 930 to realize the rotating connection support 90 of the rotating shaft 20, and the remaining second portion 24 can be understood as a rotating portion 241. Specifically, the shape of the second rotation hole 930 is circular, and the shape of the rotation portion 241 in the circumferential direction is also circular.

Optionally, the flat structure 240 is disposed on a side of the rotating portion 241 near the sliding member 30, and because the rotating portion 241 is matched with the rotating seat 93, when the rotating member 10 is sleeved on the flat structure 240, the rotating member 10 can be limited by the rotating seat 93, so as to prevent the rotating member 10 from being separated from the rotating shaft 20. Further alternatively, the flat structure 240 is disposed on two opposite sides of the rotating portion 241, so that not only the rotating member 10 can be limited by the rotating seat 93, but also the rotating member 10 can be used to limit the rotating shaft 20. And the structure of the rotary member 10 may be changed adaptively. In this embodiment, only the flat structure 240 is schematically illustrated on opposite sides of the rotating portion 241.

Referring to fig. 27, fig. 34-fig. 35, fig. 34 is a schematic partial perspective view illustrating a folding mechanism according to an embodiment of the present application when the folding mechanism is folded inwards. Fig. 35 is a schematic view of a partial perspective view of a folding mechanism according to an embodiment of the present disclosure. In this embodiment, the bracket 90 includes a main body 91 and a side wall 92 connected with the periphery of the main body 91 in a bending manner, an installation space 94 is defined by the main body 91 and the side wall 92, the first assembly member 40 and the second assembly member 70 are installed on the main body 91, an avoidance space 95 is provided on a side of the side wall 92 away from the main body 91 and a side of the side wall 92 away from the installation space 94, and a part of the rotating member 10 can be located in the avoidance space 95.

For the bracket 90, its shape may not be straight, but include a body 91 and a side wall 92. The body 91 is understood to be the bottom wall of the bracket 90 and is mainly used for mounting various structural members, such as the first fitting 40 and the second fitting 70, etc. The side wall 92 is connected with the periphery of the body 91 in a bending way and is of a protruding structure. The side wall 92 and the body 91 may enclose a mounting space 94, by means of which the structural parts of the support 90 are better mounted and protected, and the side wall 92 may also be used for cooperation with other structural parts, such as a housing. The body 91 and the side wall 92 may be integrally formed, or may be separately formed. When the body 91 and the side wall 92 are integrally formed, the body 91 and the side wall 92 may be manufactured by one process, and for convenience of understanding, the body 91 and the side wall 92 are named differently. When the body 91 and the sidewall 92 are of a split structure, the body 91 and the sidewall 92 may be formed separately and then assembled together in various ways. The present embodiment is not limited to the fitting relationship between the body 91 and the side wall 92.

As is clear from the above, the folding mechanism 1 has an unfolded state in which the two rotating members 10 are horizontally arranged at an angle of 180 ° and a folded state in which the two rotating members 10 are vertically arranged at an angle of 0 ° or 360 °, that is, the inner fold and the outer fold mentioned in the above. As shown in fig. 34, when the connecting end 12 of the rotating member 10 rotates in a direction away from the body 91 in the process from the unfolded state to the folded state, it can be regarded as being folded inward of the folding mechanism 1. As shown in fig. 35, when the connecting end 12 of the rotator 10 rotates in the direction approaching the body 91 and then rotates in the direction separating from the body 91, it is considered that the folding mechanism 1 is folded outward. The side wall 92 does not affect the rotation of the rotating member 10 when the folding mechanism 1 is folded inwards, but the presence of the side wall 92 affects the rotation of the rotating member 10 when the folding mechanism 1 is folded outwards. Therefore, the avoidance space 95 may be formed on the side wall 92 in the present embodiment, specifically, the avoidance space 95 may be formed on a side of the side wall 92 away from the body 91 and a side of the side wall 92 away from the installation space 94, that is, the avoidance space 95 may be formed on an upper surface of the side wall 92 and an outer surface of the side wall 92. Therefore, when the rotating member 10 rotates, the avoiding space 95 can be utilized to avoid the rotating member 10, so that part of the rotating member 10 can be arranged in the avoiding space 95, and the problems of locking and the like during rotation are prevented. Therefore, the folding mechanism 1 provided in this embodiment has two different folding states, which can be folded inwards or outwards, so as to improve the rotation diversity of the folding mechanism 1.

Optionally, the relief space 95 includes, but is not limited to, a relief slot or a relief aperture. When the avoidance space 95 is an avoidance groove, the avoidance groove can be further formed in one side of the side wall 92 close to the installation space 94, namely, the avoidance groove penetrates through two opposite sides of the side wall 92, so that the avoidance effect is further improved. Further alternatively, as shown in fig. 33, when the escape space 95 is an escape groove, a side of the rotary member 10 adjacent to the side wall 92 may be adapted to provide an escape groove, or a side of the rotary member 10 adjacent to the side wall 92 may be protruded in a direction away from the side wall 92 to enclose the escape space 14. In other words, the side wall 92 and the rotating member 10 may be disposed, so that the avoiding effect is further improved by the cooperation of the side wall 92 and the rotating member 10. In this embodiment, only the escape space 95 is used as an escape groove, and the side of the rotary member 10 close to the side wall 92 projects in a direction away from the side wall 92.

When dodging space 95 is dodging the hole, dodging the hole and can run through lateral wall 92 and body 91, form from the through-hole that runs through under, improve the size of dodging space 95 to further improve and dodge the effect. The avoidance space 95 is not limited to the avoidance groove or the avoidance hole, and may be set according to the structure, the size, and the like of the rotary member 10, so long as the folding mechanism 1 can be folded outward.

The above-described angle from the direction of rotation when the rotary member 10 rotates describes the difference between the inward fold and the outward fold of the folding mechanism 1. The present embodiment will discuss the difference between the inward fold and the outward fold of the folding mechanism 1 again from a static point of view. In this embodiment, the folding mechanism 1 has an unfolded state when the extending direction of the rotating member 10 is parallel to the arrangement direction of the two rotating shafts 20, and a folded state when the extending direction of the rotating member 10 is perpendicular to the arrangement direction of the two rotating shafts 20, and when the folding mechanism 1 is in the unfolded state, the rotating member 10 has a first surface 15 and a second surface 16 disposed opposite to each other, and the first surface 15 is far away from the body 91 compared with the second surface 16; when the folding mechanism 1 is in the folded state, the two first surfaces 15 are close to each other, or the two second surfaces 16 are close to each other.

As shown in fig. 27, when the folding mechanism 1 is in the unfolded state, i.e. the two rotating members 10 are flattened and have an included angle of 180 °, the rotating members 10 have a first surface 15 and a second surface 16 disposed opposite to each other, the first surface 15 is far from the body 91 compared to the second surface 16, the first surface 15 is an upper surface of the rotating member 10, and the second surface 16 is a lower surface of the rotating member 10. After the definition of the first surface 15 and the second surface 16 of the rotating member 10 is completed, when the folding mechanism 1 is in the folded state, the folding mechanism 1 has two folding modes: an inward fold and an outward fold. As shown in fig. 34, when the folding mechanism 1 is folded in, the two first surfaces 15 are close to each other, and the two second surfaces 16 are far away from each other. As shown in fig. 35, when the folding mechanism 1 is folded outwards, the two second surfaces are now close to each other and the two first surfaces 15 are far away from each other. Alternatively, both said first surfaces 15 are arranged flush when the folding mechanism 1 is in the unfolded state.

Referring to fig. 32 again, in the present embodiment, two limiting portions 96 are disposed on the body 91 at intervals along the moving direction of the slider 30, and the first assembly 40 is disposed between the two limiting portions 96.

In this embodiment, two spacing portions 96 are provided on the main body 91 at intervals, and the arrangement direction of the two spacing portions 96 is parallel to the moving direction of the slider 30 (as shown by D2 in fig. 32), and the extending direction of the two spacing portions 96 is parallel to the arrangement direction of the two rotating shafts 20 (as shown by D4 in fig. 32). The first fitting 40 is disposed between the two limiting portions 96 to further limit the displacement of the first fitting 40 in the moving direction of the sliding member 30, so as to improve the stability of the first fitting 40. The body 91 and the stopper 96 may be integrally formed or may be separately formed. When the body 91 and the limiting portion 96 are integrally formed, the body 91 and the limiting portion 96 can be manufactured through one process, and for convenience of understanding, the body 91 and the limiting portion 96 are named differently. When the body 91 and the limiting portion 96 are in a split structure, the body 91 and the limiting portion 96 may be formed separately and assembled together in various manners. The present embodiment does not limit the fitting relationship between the body 91 and the stopper 96.

Alternatively, the two stopper portions 96 may be equal in size or different in size in the arrangement direction of the two rotation shafts 20.

Referring to fig. 22 and 32 again, in the present embodiment, a first sliding portion 39 is disposed on a side of the sliding member 30 adjacent to the main body 91, a second sliding portion 97 is disposed on the main body 91, and the first sliding portion 39 and the second sliding portion 97 cooperate to slide the sliding member 30 along the axial direction D of the rotating shaft 20.

The side of the slider 30 adjacent to the body 91 may be provided with a first sliding portion 39, and it is also understood that the side of the slider 30 facing away from the guide rail 50 is provided with the first sliding portion 39. The body 91 may be provided with a second sliding portion 97, and the extending directions of the first sliding portion 39 and the second sliding portion 97 may be parallel to the moving direction of the sliding member 30, so that the sliding member 30 can move along the axial direction D of the rotating shaft 20 by guiding the sliding member 30 by the interaction of the first sliding portion 39 and the second sliding portion 97. The body 91 and the second sliding portion 97 may be integrally formed or may be separately formed. When the body 91 and the second sliding portion 97 are integrally formed, the body 91 and the second sliding portion 97 may be manufactured by one process, and for convenience of understanding, the body 91 and the second sliding portion 97 are named differently. When the body 91 and the second sliding portion 97 are of a split type structure, the body 91 and the second sliding portion 97 may be formed separately and then assembled together in various ways. The present embodiment does not limit the fitting relationship between the body 91 and the second sliding portion 97.

Optionally, the first sliding portion 39 comprises a chute or slider. When the first sliding portion 39 is a chute, the second sliding portion 97 is a slider accordingly. When the first sliding portion 39 is a slider, the second sliding portion 97 is a chute. Further alternatively, when the first sliding portion 39 is a chute, the second sliding portion 97 is a slider. The first groove 36 and the second groove 38 can be used as a sliding groove in the present embodiment, so that the guiding movement of the sliding member 30 can be achieved only by protruding the sliding block on the body 91. In addition, the groove wall of the chute can also play a limiting role on the sliding block in the arrangement direction of the two rotating shafts 20, so that the sliding piece 30 is prevented from moving along the non-moving direction during moving.

The foregoing has outlined rather broadly the more detailed description of the embodiments of the present application in order that the principles and embodiments of the present application may be explained and illustrated herein, the above description being provided for the purpose of facilitating the understanding of the method and core concepts of the present application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims

1. A folding mechanism, comprising:

two rotating members;

the sliding piece is movably connected with the two rotating shafts;

the rotating parts drive the rotating shafts connected with the rotating parts to rotate around the axial direction of the rotating shafts, the sliding parts can be driven to move along the axial direction, and the sliding parts can drive the other rotating shafts to rotate around the axial direction of the rotating shafts, so that the other rotating parts and the one rotating parts are driven to synchronously move in opposite directions;

the periphery of the rotating shaft is provided with a first matching part, two opposite sides of the sliding piece are respectively provided with a second matching part, and the first matching part is matched with the second matching part so as to convert the rotation of the rotating shaft relative to the sliding piece into the movement of the sliding piece along the axial direction of the rotating shaft; and converting the movement of the sliding member in the axial direction of the rotating shaft into rotation of the rotating shaft relative to the sliding member;

the first matching part is provided with a first damping part, the second matching part is provided with a second damping part, and when the rotating piece rotates to a preset angle relative to the sliding piece, the first damping part is abutted with the second damping part so that the rotating piece keeps a static state relative to the sliding piece when the rotating piece stops rotating;

The first damping part comprises a plurality of first sub-damping parts which are arranged at intervals along the axial direction of the rotating shaft, the second damping part comprises a plurality of second sub-damping parts which are arranged at intervals along the axial direction of the rotating shaft, and when the rotating piece rotates to the preset angle relative to the sliding piece, the first sub-damping parts are abutted with the second sub-damping parts;

the first sub damping part and the second sub damping part comprise wedge faces, arc faces and abutting faces, and two ends of each arc face are respectively connected with the wedge faces and the abutting faces; when the rotating piece rotates to the preset angle relative to the sliding piece, the two abutting surfaces are abutted.

2. The folding mechanism of claim 1, wherein one of the first mating portion and the second mating portion includes a threaded portion, the other of the first mating portion and the second mating portion includes a threaded groove, and an extending direction of the threaded portion and the threaded groove is inclined to a rotational direction of the rotating shaft.

3. The folding mechanism of claim 1, wherein the rotating shaft comprises a first portion and a second portion connected with each other, the first portion is provided with the first mating portion on a peripheral side thereof, at least a part of the second portion is provided with a flat structure, the rotating member has a connecting hole, and the flat structure is sleeved on the rotating member through the connecting hole so that the rotating member and the rotating shaft synchronously rotate.

4. The folding mechanism of claim 1, further comprising a guide rail extending in a direction parallel to an axial direction of the rotating shaft, the guide rail cooperating with the slider to move the slider in the axial direction.

5. The folding mechanism of claim 1, wherein at least one of the first and second sub-damping portions is resilient.

6. The folding mechanism of claim 1, wherein at least one of the first damping portion and the second damping portion is plural in number and is disposed at intervals along a circumferential direction of the rotating shaft.

7. The folding mechanism of claim 4, further comprising a first fitting coupled to the rail, and a first elastic member rotatably coupled to the first fitting, the first elastic member being disposed between the first fitting and the slider.

8. The folding mechanism of claim 7, further comprising a second fitting coupled to the rail, and a second elastic member disposed on a side of the slider facing away from the first fitting, the second elastic member being disposed between the second fitting and the slider.

9. The folding mechanism according to claim 8, wherein the folding mechanism has an expanded state in which an extending direction of the rotating member is parallel to an arrangement direction of the two rotating shafts, and a folded state in which the extending direction of the rotating member is perpendicular to the arrangement direction of the two rotating shafts, and when the folding mechanism is in the expanded state or the folded state, the first elastic member and the second elastic member are both in a compressed state and have the same elastic coefficient.

10. The folding mechanism of claim 9, wherein a movement limit stroke of the slider in an axial direction of the rotation shaft is smaller than a maximum deformation amount of the first elastic member and a maximum deformation amount of the second elastic member.

11. The folding mechanism of claim 7, further comprising a rotating member rotatably coupled to the first fitting, the rotating member and the rotating member each being configured to be coupled to the housing and capable of rotating under rotation of the housing, a rotation center line of the rotating member being coincident with or spaced from an axis of the rotating shaft.

12. An electronic device comprising a flexible screen, two housings, and a folding mechanism according to any one of claims 1 to 11, at least part of the folding mechanism being disposed between the two housings, one of the housings being connected to one of the rotating members, the other housing being connected to the other rotating member, the flexible screen being mounted on one side of the two housings.

13. The electronic device of claim 12, further comprising a bracket disposed on a side of the folding mechanism facing away from the flexible screen, the bracket comprising a body and a side wall connected to a periphery of the body in a bending manner, the body and the side wall enclosing to form an installation space, the folding mechanism being disposed on the body, a side of the side wall facing away from the body, and a side of the side wall facing away from the installation space being provided with an avoidance space, wherein a portion of the rotating member can be disposed in the avoidance space.