CN117189755A

CN117189755A - Rotating shaft device, folding shell and electronic equipment

Info

Publication number: CN117189755A
Application number: CN202210611566.2A
Authority: CN
Inventors: 郑泽宽; 彭翊; 张前
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-12-08

Abstract

The application provides a rotating shaft device, which comprises a supporting mechanism, a rotating assembly and a driven mechanism, wherein the supporting mechanism comprises two side supporting pieces; the rotating assembly comprises a positioning seat and rotating mechanisms arranged on two opposite sides of the positioning seat, the rotating mechanisms comprise a first rotating piece, a second rotating piece and a connecting piece, one end of the first rotating piece is rotationally connected with the positioning seat, the other end of the first rotating piece is rotationally connected with the connecting piece, one end of the second rotating piece is rotationally connected with the positioning seat, the other end of the second rotating piece is rotationally connected with the connecting piece, and a first rotating axis line between the first rotating piece and the connecting piece is parallel to a second rotating axis line between the second rotating piece and the connecting piece; the driven mechanism comprises a driven piece connected with the side supporting piece, and the driven piece is slidingly and rotationally connected with the positioning seat. The application also provides a folding shell with the rotating shaft device and electronic equipment.

Description

Rotating shaft device, folding shell and electronic equipment

Technical Field

The application relates to the field of flexible piece support, in particular to a rotating shaft device for supporting a flexible piece, a folding shell provided with the rotating shaft device and electronic equipment provided with the folding shell.

Background

Along with the development of display equipment, a bendable flexible display screen is developed, and a folding screen mobile phone with the bendable flexible display screen is increasingly popular with people due to the unique modeling and diversified functions of the folding screen mobile phone. The folding scheme of the flexible display screen capable of being folded at present comprises inner folding and outer folding, and a folding screen mobile phone in the related technology is generally supported by adopting a hinge mechanism, however, most of hinge structures at present have the characteristics of larger width and more occupied space, and are not beneficial to the miniaturization development of the folding screen mobile phone.

Disclosure of Invention

The application provides a rotating shaft device, a folding shell provided with the rotating shaft device and electronic equipment provided with the folding shell.

The application provides a rotating shaft device, which comprises a supporting mechanism, a rotating assembly and a driven mechanism, wherein the supporting mechanism comprises two side supporting pieces; the rotating assembly comprises a positioning seat and rotating mechanisms arranged on two opposite sides of the positioning seat, the rotating mechanisms comprise a first rotating piece, a second rotating piece and a connecting piece, one end of the first rotating piece is rotationally connected with the positioning seat, the other end of the first rotating piece, which is far away from the positioning seat, is rotationally connected with the connecting piece, one end of the second rotating piece is rotationally connected with the positioning seat, the other end of the second rotating piece, which is far away from the positioning seat, is rotationally connected with the connecting piece, and a first rotating axis line between the first rotating piece and the connecting piece is parallel to a second rotating axis line between the second rotating piece and the connecting piece; the driven mechanism comprises a driven piece connected with the side supporting piece, and the driven piece is slidingly and rotationally connected with the positioning seat; the side support is rotatably connected with the connecting piece; when the two connecting pieces are mutually closed, the first rotating piece and the second rotating piece rotate relative to the positioning seat and the connecting piece to be mutually closed, and the driven piece slides and rotates relative to the positioning seat so as to enable the two side supporting pieces to be mutually folded; when the two connecting pieces are far away from each other, the first rotating piece and the second rotating piece rotate relative to the positioning seat and the connecting piece to be far away from each other, and the driven piece slides and rotates relative to the positioning seat so as to enable the two side supporting pieces to be unfolded from each other.

The application also provides a folding shell which comprises a rotating shaft device and two frame bodies, wherein the rotating shaft device is positioned between the two frame bodies, and the two frame bodies are respectively connected with connecting pieces of the two rotating mechanisms of the rotating shaft device.

The application also provides electronic equipment, which comprises a flexible piece and a folding shell, wherein the flexible piece is arranged on the folding shell.

According to the rotating shaft device, the first rotating axis between the first rotating piece and the connecting piece is parallel to the second rotating axis between the second rotating piece and the connecting piece, the auxiliary piece is connected to the side supporting piece, and the auxiliary piece is connected with the positioning seat in a sliding and rotating manner, so that all elements of the rotating shaft device are connected compactly, the whole width of the rotating shaft device is smaller, the inner space of the folding shell occupied by the rotating shaft device is reduced, and the rotating shaft device is beneficial to layout of other elements such as a main board or a battery in electronic equipment and miniaturized development.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are of some embodiments of the application and that other drawings may be derived from these drawings without undue effort.

Fig. 1 is a schematic perspective view of an electronic device according to a first embodiment of the present application;

FIG. 2 is an exploded perspective view of the folding housing and the flexible member of the electronic device of FIG. 1;

FIG. 3 is an exploded perspective view of the folding housing of FIG. 2;

FIG. 4 is a schematic perspective view of the folding housing of FIG. 3 from another perspective;

FIG. 5 is an enlarged view of a perspective structure of the spindle assembly of FIG. 3;

FIG. 6 is a schematic perspective view of the spindle assembly of FIG. 5 from another perspective;

FIG. 7 is an exploded perspective view of the spindle assembly of FIG. 5;

FIG. 8 is a schematic perspective view of the spindle assembly of FIG. 7 from another perspective;

FIG. 9 is a further exploded perspective view of the spindle assembly of FIG. 7;

FIG. 10 is a schematic perspective view of the spindle assembly of FIG. 9 from another perspective;

FIG. 11 is a perspective cross-sectional view of the spindle assembly of FIG. 5 from another perspective;

FIGS. 12-15 are perspective cross-sectional views of different parts of the spindle assembly of FIG. 5;

FIG. 16 is a schematic cross-sectional view of the spindle assembly of FIG. 14;

fig. 17 is a schematic perspective view of the electronic device in fig. 1 in a fully folded state;

FIG. 18 is a schematic perspective view of the spindle assembly of FIG. 17;

FIGS. 19-22 are perspective cross-sectional views of different parts of the spindle assembly of FIG. 18;

FIG. 23 is a schematic cross-sectional view of the spindle assembly of FIG. 21;

fig. 24 is an exploded perspective view of a spindle assembly in a second embodiment of the present application;

FIG. 25 is a schematic perspective view of the spindle assembly of FIG. 24 from another perspective;

fig. 26 is a schematic perspective view of a rotating shaft device according to a third embodiment of the present application;

FIG. 27 is a schematic perspective view of the spindle assembly of FIG. 26 from another perspective;

fig. 28 is an exploded perspective view of a spindle assembly in a fourth embodiment of the present application;

fig. 29 is a schematic perspective view of another view of the spindle assembly of fig. 28.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without any inventive effort, are intended to be within the scope of the application.

Furthermore, the following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. Directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., in the present application are merely referring to the directions of the attached drawings, and thus, directional terms are used for better, more clear explanation and understanding of the present application, rather than indicating or implying that the apparatus or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "disposed on … …" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 7, an electronic device 100 according to a first embodiment of the application includes a foldable housing 20 and a flexible member 30 disposed on the foldable housing 20. The flexible member 30 may be flexible components with corresponding functions such as a flexible display screen, a flexible touch display screen, or flexible components fixedly attached with a flexible support plate, such as a flexible display screen attached with a flexible steel plate, a flexible touch screen, and the like. The flexible member 30 bends or flattens with the folded housing 20. The folding housing 20 includes two frames 21 and a rotating shaft device 22 connected between the two frames 21, and the two frames 21 are folded or unfolded by the rotating shaft device 22. The flexible member 30 includes a bendable region 31 corresponding to the shaft device 22, and two non-bendable regions 33 connected to opposite sides of the bendable region 31. The two non-bending areas 33 of the flexible member 30 can be fixed on the front surfaces of the two frames 21 respectively, and the bendable areas 31 are attached to the front surfaces of the rotating shaft device 22. The bendable region 31 of the flexure 30 can bend or flatten with the rotational axis device 22.

The rotating shaft device 22 comprises a supporting mechanism 23, a rotating assembly 25 and a driven mechanism 26, wherein the driven mechanism 26 is connected with the rotating assembly 25. The supporting mechanism 23 comprises two side supporting pieces 233 arranged on two opposite sides of the front surface of the rotating assembly 25, and the two side supporting pieces 233 can be mutually bent or flattened; the two side supports 233 may be symmetrically or asymmetrically disposed, and in this embodiment, the two side supports 233 are symmetrically disposed. The rotating assembly 25 includes a positioning seat 251 and rotating mechanisms 253 disposed on two opposite sides of the positioning seat 251, where the two rotating mechanisms 253 may be symmetrically or asymmetrically disposed; in this embodiment, the two rotating mechanisms 253 are symmetrically arranged. The two side supporting pieces 233 are disposed on two opposite sides of the positioning seat 251, and the two side supporting pieces 233 are respectively connected to the two rotating mechanisms 253. When the two side supporting pieces 233 are in the flattened state, the front faces of the two side supporting pieces 233 are coplanar with the front faces of the positioning seat 251 so that the flexible piece 30 fits to the front faces of the positioning seat 251 and the side supporting pieces 233. The rotating mechanism 253 comprises a first rotating member 254, a second rotating member 255 and a connecting member 256, one end of the first rotating member 254 is rotationally connected to the positioning seat 251, and the other end of the first rotating member 254 far away from the positioning seat 251 is rotationally connected to the connecting member 256; one end of the second rotating member 255 is rotatably connected to the positioning seat 251, and the other end of the second rotating member 255 remote from the positioning seat 251 is rotatably connected to the connecting member 256, wherein a first rotation axis C1 between the first rotating member 254 and the connecting member 256 is parallel to a second rotation axis C2 between the second rotating member 255 and the connecting member 256; that is, the first rotation axis C1 and the second rotation axis C2 are misaligned and misaligned. The follower mechanism 26 includes a follower 262 coupled to the side support 233, the follower 262 being slidably and rotatably coupled to the positioning seat 251. The side supporting pieces 233 are rotatably connected with the corresponding connecting pieces 256, and the connecting pieces 256 rotate relative to the positioning seat 251 to drive the first rotating piece 254 and the second rotating piece 255 to rotate so as to drive the side supporting pieces 233 to rotate relative to the rotating mechanism 253 and the driven piece 262 to slide and rotate relative to the positioning seat 251, so that the two side supporting pieces 233 are mutually bent or mutually unfolded.

In some embodiments, the support mechanism 23 may further include a middle support member disposed between the two side support members 233, and when the support mechanism 23 is in the flattened state, the front surfaces of the two side support members 233 and the front surface of the middle support member are coplanar, and the bendable region 31 of the flexible member 30 is attached to the front surfaces of the middle support member and the front surfaces of the side support members 233. When the supporting mechanism 23 is in a folded state, the front faces of the two side supporting pieces 233 and the front face of the middle supporting piece enclose a space having a water-drop shape or a U-shape in cross section.

The two frames 21 of the electronic device 100 are respectively connected to two connecting pieces 256 of the rotating shaft device 22, the frames 21 drive the first rotating piece 254 and the second rotating piece 255 to rotate relative to the positioning seat 251 through the connecting pieces 256, so as to drive the two side supporting pieces 233 to rotate relative to the rotating mechanism 253, meanwhile, the driven pieces 262 on the side supporting pieces 233 slide and rotate relative to the positioning seat 251, so that the two side supporting pieces 233 can be bent or unfolded relatively, the flexible piece 30 is bent or flattened along with the supporting mechanism 23, and the bendable region 31 can be bent to form a U shape or a drop shape or other shapes. In this embodiment, the bendable region 31 can be bent into a drop shape.

In this embodiment, the front surface refers to the surface facing the light emitting surface of the flexible member 30, and the back surface refers to the surface facing away from the light emitting surface of the flexible member 30. The electronic device 100 is, for example, but not limited to, a mobile phone, a tablet computer, a display, a liquid crystal panel, an OLED panel, a television, a smart watch, a VR head mounted display, a vehicle mounted display, and any other product or component having a display function. "connected" in the description of the embodiments of the present invention is intended to include both direct connection and indirect connection, such as where the a and B connections include direct connection of a and B or other connection through a third element C or more. The connection also comprises two cases of integrated connection and non-integrated connection, wherein the integrated connection means that A and B are integrally formed and connected, and the non-integrated connection means that A and B are non-integrally formed and connected.

The rotating shaft device 22 of the electronic apparatus 100 of the present invention includes a supporting mechanism 23, a rotating assembly 25 and a driven mechanism 26, wherein one end of a first rotating member 254 of the rotating assembly 25 is rotatably connected to a positioning seat 251, the other end of the first rotating member 254 away from the positioning seat 251 is rotatably connected to a connecting member 256, one end of a second rotating member 255 is rotatably connected to the positioning seat 251, the other end of the second rotating member 255 away from the positioning seat 251 is rotatably connected to the connecting member 256, one end of a driven member 262 is connected to a corresponding side supporting member 233, and the driven member 262 is slidably and rotatably connected to the positioning seat 251. In the process that the two frames 21 are folded to be close to each other or flattened to be far away from each other, the connecting piece 256 drives the first rotating piece 254 and the second rotating piece 255 to rotate relative to the positioning seat 251, the rotating mechanism 253 drives the side supporting piece 233 to rotate relative to the connecting piece 256, and the driven piece 262 on the side supporting piece 233 slides and rotates relative to the positioning seat 251, so that the two side supporting pieces 233 are folded or unfolded to each other, and folding or flattening of the flexible piece 30 is achieved.

First, since the first rotation axis C1 between the first rotation member 254 and the connecting member 256 is parallel to the second rotation axis C2 between the second rotation member 255 and the connecting member 256, and the auxiliary member 262 is connected to the side support member 233, and the auxiliary member 262 is slidably and rotatably connected to the positioning seat 251, the connection of the respective elements of the rotation shaft device 22 is compact, and the overall width of the rotation shaft device 22 is smaller, so that the rotation shaft device 22 occupies the inner space of the folding housing 20, which is not only beneficial to the layout of other elements such as a motherboard or a battery in the electronic device 100, but also beneficial to the miniaturization development. Secondly, compared with the prior art that the flexible part is supported by the hinge mechanism, the rotating shaft device 22 has the advantages of simple structure, lower manufacturing cost, high connection reliability among all parts and improved strength of the whole machine.

The rotating shaft device 22 in the present embodiment includes a rotating assembly 25 and a driven mechanism 26; the rotating assembly 25 and the driven mechanism 26 form an integral structure, and the integral structure is arranged on the back surface of the supporting mechanism 23.

In some embodiments, the rotating shaft device 22 may also include two rotating assemblies 25 and two driven mechanisms 26, where the two rotating assemblies 25 and the two driven mechanisms 26 form two integral structures respectively, and the two integral structures are disposed at intervals on the back of the supporting mechanism 23 respectively; preferably, the two integral structures are respectively arranged at two opposite ends of the back surface of the supporting mechanism 23.

In some embodiments, the rotating shaft device 22 may also include three or more rotating assemblies 25 and three or more driven mechanisms 26, where each rotating assembly 25 and one of the driven mechanisms 26 form an integral structure, that is, three or more rotating assemblies 25 and three or more driven mechanisms 26 form three or more integral structures, and the three or more integral structures are respectively disposed at the back of the supporting mechanism 23 and are arranged at intervals along the length direction of the supporting mechanism 23.

As shown in fig. 5 and 7, the first axis of rotation C1 between the first rotating member 254 and the connecting member 256 on the same side of the positioning seat 251 is farther away from the positioning seat 251 than the second axis of rotation C2 between the second rotating member 255 and the connecting member 256. That is, the first rotation axis C1 is parallel to the second rotation axis C2, and the second rotation axis C2 is closer to the positioning seat 251 than the first rotation axis C1. The first rotation axis C1 and the second rotation axis C2 are spaced in parallel in the first direction, which is advantageous for compact connection of the first rotation member 254, the second rotation member 255, the connection member 256 and the positioning seat 251. The first rotation axis C1 is parallel to the rotation axis between the first rotation member 254 and the positioning seat 251 and the rotation axis between the second rotation member 255 and the positioning seat 251.

The connecting member 256 includes a connecting plate 2560, the first rotating member 254 and the second rotating member 255 are respectively rotatably connected to the front surface of the connecting plate 2560, and the first rotation axis C1 is further away from the connecting plate 2560 than the second rotation axis C2. The first rotation axis C1 and the second rotation axis C2 are spaced in parallel in the second direction, which is beneficial to compact connection of the first rotation member 254, the second rotation member 255, the connecting member 256 and the positioning seat 251. The first direction is perpendicular to the second direction, the first direction is parallel to the width direction of the turning device 22, and the second direction is parallel to the thickness direction of the turning device 22.

As shown in fig. 1 to 4, the connecting pieces 256 on opposite sides of the rotating shaft device 22 are respectively and fixedly connected to the two frames 21, when one of the frames 21 is folded or unfolded relative to the other frame 21, the corresponding rotating mechanism 253 can be driven to rotate relative to the positioning seat 251, the rotating mechanism 253 rotates to drive the two side supporting pieces 233 to rotate relative to the connecting pieces 256, and the driven pieces 262 on the side supporting pieces 233 rotate and slide relative to the positioning seat 251 until the two side supporting pieces 233 are folded into a water drop shape or unfolded into a horizontal shape, and the bendable region 31 of the flexible piece 30 is folded into a water drop shape or unfolded into a horizontal shape along with the bendable region 31.

As shown in fig. 2-4, the frame 21 includes a front 211, a back 213, opposite side 214 and two end 215, the hinge device 22 is connected between two adjacent end 215 of the two frames 21, the bendable region 31 of the flexible member 30 is attached to the front of the hinge device 22, and the non-bendable region 33 of the flexible member 30 is connected to the front 211 of the frame 21. The end surface 215 of each frame 21 facing the rotating shaft device 22 is provided with a receiving groove 216, the receiving groove 216 penetrates through the front surface 211 of the frame 21, and two opposite ends of the receiving groove 216 extend to two opposite side surfaces 214 of the frame 21. Opposite sides of the rotating shaft device 22 are respectively accommodated in the accommodating grooves 216 of the two frames 21, and each connecting piece 256 is fixedly connected with the corresponding frame 21. The back surface 213 of the frame 21 is provided with a plurality of accommodating spaces (not shown) for mounting electronic devices such as a circuit board and a battery.

Referring to fig. 5-10, the side supporting member 233 has a rectangular plate shape, and a side of the side supporting member 233 away from the positioning seat 251 is connected to the connecting member 256 through a first circular arc groove 2334 and a first circular arc rail 2562. The axis of the first circular arc groove 2334 is collinear with the axis of rotation between the side support 233 and the link 256, the first circular arc groove 2334 is provided at one of the side support 233 and the link 256, and the first circular arc rail 2562 is provided at the other of the link 256 and the side support 233. In this embodiment, the side support 233 includes a rectangular side support plate 2330, and the link 256 is rotatably coupled to the side support plate 2330. Specifically, the side support plate 2330 includes a front surface 2331, a back surface 2332 facing away from the front surface 2331, and opposite side surfaces 2335, wherein one side surface 2335 faces toward the positioning seat 251 and the other side surface 2335 faces away from the positioning seat 251. The side support 233 is provided with a guide slider 2333, the guide slider 2333 is provided with a first arc groove 2334, the connecting piece 256 is provided with a first arc rail 2562 which can be slidingly accommodated in the first arc groove 2334, and the connecting piece 256 and the side support 233 relatively rotate along the first arc groove 2334. Specifically, a guide sliding block 2333 is convexly arranged on one side, far away from the positioning seat 251, of the back surface 2332 of the side support 233, the guide sliding block 2333 is an arc-shaped block, and a first arc groove 2334 is formed in the side surface of the guide sliding block 2333; one end of the first circular arc groove 2334 penetrates through the surface of the guide sliding block 2333, which is away from the positioning seat 251, and the opposite end of the first circular arc groove 2334 extends to the back surface 2332 of the side supporting plate 2330. The first circular arc groove 2334 is curved to a side away from the back surface 2332, specifically, a middle portion of the first circular arc groove 2334 is curved to a side away from the back surface 2332. The side support member 233 is provided with a guide slider 2333 corresponding to at least one end of the connecting member 256, a side surface of the guide slider 2333 facing the connecting member 256 is provided with a first arc groove 2334, an end surface of the connecting member 256 facing the guide slider 2333 is provided with a first arc rail 2562, and the first arc rail 2562 is slidably accommodated in the first arc groove 2334.

In some embodiments, two opposite ends of the side support member 233 corresponding to the connecting member 256 are respectively provided with a guide slide block 2333, two opposite sides of the two guide slide blocks 2333 are respectively provided with a first arc groove 2334, axial lines of the two first arc grooves 2334 are collinear, and one end of the first arc groove 2334 penetrates through the surface of the guide slide block 2333, which is away from the positioning seat 251; the opposite end surfaces of the connecting piece 256 are respectively provided with a first arc rail 2562 in a protruding mode, and the two first arc rails 2562 are respectively slidably accommodated in the two first arc grooves 2334.

In some embodiments, two opposite ends of the side support 233 corresponding to the connecting piece 256 are respectively provided with a guide slide block 2333, two opposite sides of the two guide slide blocks 2333 are respectively provided with a first arc rail 2562, and axes of the two first arc rails 2562 are collinear; the opposite end surfaces of the connecting piece 256 are respectively provided with a first arc groove 2334, and the two first arc rails 2562 are respectively slidably accommodated in the two first arc grooves 2334.

In some embodiments, the connecting member 256 is provided with two or more first circular arc rails 2562, the axes of the two or more first circular arc rails 2562 are collinear, the side supporting member 233 is provided with two or more first circular arc grooves 2334 corresponding to the two or more first circular arc rails 2562, and the two or more first circular arc rails 2562 are rotatably accommodated in the two or more first circular arc grooves 2334, respectively.

In some embodiments, two guide blocks 2333 are arranged on the back surface of the side support 233, two side surfaces, facing away from each other, of the two guide blocks 2333 are respectively provided with a first arc groove 2334, the axes of the two first arc grooves 2334 are collinear, one end of each first arc groove 2334 penetrates through the surface, facing away from the side support plate 2330, of the guide block 2333, and each first arc groove 2334 is bent towards one side, facing away from the back surface 2332; the connecting piece 256 is provided with two first arc rails 2562 corresponding to the two first arc grooves 2334 respectively, and the two first arc rails 2562 are accommodated in the two first arc grooves 2334 in a sliding manner respectively.

The driven mechanism 26 includes a driven member 262 and a driven shaft 264, wherein the driven member 262 is rotatably and slidably connected to the positioning seat 251 through the driven shaft 264, one end of the driven member 262 is connected to the side support 233, and the driven member 262 is slidably and rotatably connected to the positioning seat 251 through the driven shaft 264. Specifically, the driven member 262 on the side supporting member 233 is connected to the positioning seat 251 through the cooperation of the driven shaft 264 and the driven groove 2620, the axis line of the driven shaft 264 is parallel to the first rotation axis line C1, the driven shaft 264 is slidably and rotatably inserted into the driven groove 2620, the driven shaft 264 is disposed on one of the positioning seat 251 and the driven member 262, and the driven groove 2620 is disposed on the other of the driven member 262 and the positioning seat 251. In the present embodiment, the driven shaft 264 is connected to the positioning seat 251, and the driven groove 2620 is disposed on the driven member 262; specifically, the follower 262 is an extension bar connected to the side support plate 2330 near the positioning seat 251, and an inclined follower groove 2620 is provided on the extension bar, specifically, when the side support 233 is in a flattened state relative to the positioning seat 251, the follower groove 2620 extends obliquely upward from the side near the side support 233 toward the positioning seat 251; the upper direction is the same direction as the outgoing light direction of the flexible member 30. It will be appreciated that the follower channel 2620 extends in a first direction toward the nest 251, while the follower channel 2620 extends in a second direction away from the nest. One end of the driven shaft 264 is connected to the positioning seat 251, and the other end of the driven shaft 264 is inserted into the driven groove 2620. During the bending or flattening of the two side supports 233 against each other, the driven shaft 264 rotates and slides in the driven groove 2620. Preferably, the extension bar extends obliquely from a side of the side support plate 2330 near the positioning seat 251 to a side away from the side support plate 2330 and the positioning seat 251, the driven groove 2620 extends along the extending direction of the extension bar, and opposite ends of the driven groove 2620 extend to the opposite ends near the extension bar, respectively. Further, one end of the extension bar is fixedly connected to the side surface 2335 of the side support plate 2330 facing the positioning seat 251, the opposite end of the extension bar extends obliquely to a side away from the back surface 2332 of the side support plate 2330, the driven groove 2620 extends along the extending direction of the extension bar, and the opposite ends of the driven groove 2620 extend to the opposite ends close to the extension bar.

In the present embodiment, two opposite sides of the driven groove 2620 penetrate two opposite sides of the driven member 262, the driven groove 2620 includes a first limiting section 2621 and a second limiting section 2623 at two opposite ends, and the first limiting section 2621 is closer to the side support plate 2330 than the second limiting section 2623; when the two side support pieces 233 are in the flattened state, the driven shaft 264 is positioned at the first limiting section 2621 (as shown in fig. 15) to prevent the side support pieces 233 from being folded back to damage the flexible piece 30; when the two side supports 233 are in the fully folded state, the driven shaft 264 is positioned at the second stop section 2623 (as shown in fig. 22) to prevent the side supports 233 from being further folded to damage the flexible member 30. Preferably, the end surface of the follower 262 facing away from the side support plates 2330 is provided as an arc surface to avoid the end of the follower 262 from scratching the flexible member 30.

It should be noted that, the driven mechanism 26 in the present embodiment includes two driven members 262 and two driven shafts 264, specifically, two side supporting members 233 of the rotating shaft device 22 are respectively provided with the driven members 262 near one side of the positioning seat 251, one end of the positioning seat 251 near the driven members 262 is provided with two driven shafts 264 spaced apart from each other, and the two driven shafts 264 respectively slide and rotationally penetrate into the driven grooves 2620 of the two driven members 262. Preferably, the two followers 262 are offset in a direction parallel to the first rotation axis C1, so that the two followers 262 can be prevented from interfering with each other during the process of bending or expanding the two side supporting members 233, and the width of the two side supporting members 233 can be reduced, so that the overall width of the rotation shaft device 22 is reduced, the rotation shaft device 22 occupies the internal space of the folding housing 20, and the layout of other elements such as a motherboard or a battery is facilitated, and the miniaturization development is facilitated.

In some embodiments, the follower grooves 2620 on the follower 262 and the follower shafts 264 on the nest 251 may be interchanged. Specifically, the driven groove 2620 on the driven member 262 may also be disposed on the positioning seat 251, and the driven shaft 264 may also be connected to the driven member 262. Specifically, the surface of the positioning seat 251 facing the follower 262 is provided with a follower groove 2620, one end of the follower 264 is fixedly connected to the follower 262, and the other end of the follower 264 is slidingly and rotatably accommodated in the follower groove 2620; during bending or unfolding of the rotation shaft device 22, the driven shaft 264 slides and rotates in the driven groove 2620.

Referring to fig. 7-10, the first rotating member 254 and the positioning seat 251 are cooperatively connected with the second circular arc rail 2541 through the second circular arc slot 2511, and the axis of the second circular arc slot 2511 is collinear with the axis of rotation between the first rotating member 254 and the positioning seat 251; the second arc groove 2511 is provided on one of the positioning seat 251 and the first rotating member 254, and the second arc rail 2541 is provided on the other of the first rotating member 254 and the positioning seat 251. The axis of the second arc groove 2511 is collinear with the axis of the second arc rail 2541, and the axis of the second arc rail 2541 is collinear with the axis of rotation between the first rotating member 254 and the positioning seat 251. In this embodiment, two opposite sides of one end of the positioning seat 251 are respectively provided with a second arc groove 2511, and one end of the first rotating member 254, which is far away from the connecting member 256, is provided with a second arc rail 2541 corresponding to the second arc groove 2511, so that the first rotating member 254 and the positioning seat 251 rotate relatively along the second arc groove 2511.

In some embodiments, a second circular arc groove may also be disposed on the first rotating member 254, and a second circular arc rail may also be disposed on the positioning seat 251, where the second circular arc rail is slidingly received in the second circular arc groove. Specifically, the end of the first rotating member 254, which is far away from the connecting member 256, is provided with a second circular arc groove, and the positioning seat 251 is provided with a second circular arc rail corresponding to the second circular arc groove.

The second rotating member 255 is connected with the positioning seat 251 through the third arc groove 2512 and the third arc rail 2552, and the axis of the third arc groove 2512 is collinear with the axis of rotation between the second rotating member 255 and the positioning seat 251. The third arc groove 2512 is provided on one of the positioning seat 251 and the second rotating member 255, and the third arc rail 2552 is provided on the other of the second rotating member 255 and the positioning seat 251. The axis of the third arc groove 2512 is collinear with the axis of the third arc rail 2552, and the axis of the third arc rail 2552 is collinear with the axis of rotation between the second rotating member 255 and the positioning seat 251. In this embodiment, the opposite sides of the end of the positioning seat 251 away from the second arc slot 2511 are respectively provided with a third arc slot 2512, and the end of each second rotating member 255 away from the connecting member 256 is provided with a third arc rail 2552 corresponding to the third arc slot 2512, so that the second rotating member 255 and the positioning seat 251 rotate relatively along the third arc slot 2512.

In some embodiments, the third circular arc groove 2512 may also be provided on the second rotating member 255, the third circular arc rail 2552 may also be provided on the positioning seat 251, and the third circular arc rail 2552 is slidingly received in the third circular arc groove 2512. Specifically, a third circular arc groove is disposed at an end of the second rotating member 255 away from the connecting member 256, and the positioning seat 251 is provided with a third circular arc rail corresponding to the third circular arc groove, where the third circular arc rail is slidably accommodated.

As shown in fig. 7-11, in the present embodiment, the positioning seat 251 includes a first seat 2510 and a second seat 2516 capable of being fastened to each other, one ends of the first rotating member 254 and the second rotating member 255, which are far away from the connecting member 256, are clamped between the first seat 2510 and the second seat 2516, and the first rotating member 254 and the second rotating member 255 can both rotate relative to the first seat 2510 and the second seat 2516. The first base 2510 is a rectangular block, the first base 2510 includes a front surface 2514 facing the second base 2516, second arc grooves 2511 are respectively formed on two opposite sides of one end of the front surface 2514, and third arc grooves 2152 are respectively formed on two opposite sides of the other end of the front surface 2514, which is far from the second arc grooves 2511. The axes of the second arc grooves 2511 and the third arc grooves 2512 on the same side of the first base 2510 may be parallel or collinear, and in this embodiment, the axes of the first arc grooves 2511 and the third arc grooves 2152 on the same side of the first base 2510 are parallel. In some embodiments, the axis of the first circular arc slot 2511 on the same side of the first housing 2510 is collinear with the axis of the third circular arc slot 2152. The first seat body 2510 is provided with a first avoidance slot 2513 at a side of each second arc slot 2511 away from the other second arc slot 2511, where the first avoidance slot 2513 is used for avoiding the first rotating member 254. The first seat body 2510 is provided with a first avoidance slot 2513 at a side of each third arc slot 2512 away from the other third arc slot 2512, where the first avoidance slot 2513 is used for avoiding the second rotating member 255. The end surface of the first base 2510, which is close to the third arc groove 2512, is provided with two spaced connecting holes 2515, and two driven shafts 264 are respectively connected in the two connecting holes 2515. In some embodiments, the driven shaft 264 may be integrally formed with the first housing 2510, or the driven shaft 264 may be secured to the first housing 2510 by glue or the like.

Preferably, a bump is arranged at one end of the first seat body 2510 close to the end face of the third arc groove 2512, one connecting hole 2515 is arranged on the surface of the bump facing away from the third arc groove 2512, and the other connecting hole 2515 is arranged at the end face facing away from the bump; therefore, the two connection holes 2515 are not provided on the same surface, so that the driven shafts 264 respectively connected to the two connection holes 2515 are shifted in the direction parallel to the axis of the third circular arc groove 2512. A positioning block is disposed at one end of the front surface 2514 of the first base 2510, which is far away from the second circular arc groove 2511, and the positioning block is used for positioning the second base 2516 onto the first base 2510. The second seat 2516 is rectangular, the second seat 2516 includes the front that faces towards the back of first seat 2510 and deviates from the back, the opposite both sides in one end of the back of second seat 2516 are equipped with first circular arc convex surface 2517 respectively, the opposite both sides in the opposite other end of the back of second seat 2516 are equipped with second circular arc convex surface 2518 respectively, the axial lead of first circular arc convex surface 2517 of second seat 2516 homonymy and the axial lead of second circular arc convex surface 2518 can be parallel or coincide. In this embodiment, the axis of the first circular convex surface 2517 and the axis of the second circular convex surface 2518 on the same side of the second seat body 2516 are parallel. The second seat 2516 is provided with second avoidance grooves 2519 on two opposite sides of each first arc convex surface 2517 and two opposite sides of each second arc convex surface 2518, and the second avoidance grooves 2519 are used for avoiding the second arc rail 2541 and the third arc rail 2552. When the first seat 2510 and the second seat 2516 are fastened to each other, the two first arc convex surfaces 2517 respectively face the second arc groove 2511, and the two second arc convex surfaces 2518 respectively face the third arc groove 2512.

As shown in fig. 7 to 10, an end of the first rotating member 254 away from the positioning seat 251 is rotatably connected to the connecting member 256, and an end of the second rotating member 255 away from the positioning seat 251 is rotatably connected to the connecting member 256. Specifically, the first rotating member 254 and the connecting member 256 are rotatably connected by the engagement of the first connecting shaft 2501 with the first connecting hole 2503, the first connecting shaft 2501 is provided to one of the first rotating member 254 and the connecting member 256, and the first connecting hole 2503 is provided to the other of the first rotating member 254 and the connecting member 256. The end of the second rotating member 255 away from the positioning seat 251 is rotatably connected to the connecting member 256 through the cooperation of the second connecting shaft 2502 and the second connecting hole 2504, the second connecting shaft 2502 is disposed on one of the second rotating member 255 and the connecting member 256, and the second connecting hole 2504 is disposed on the other of the second rotating member 255 and the connecting member 256.

In this embodiment, the first rotating member 254 includes a second circular arc rail 2541, a connecting portion 2542, and a supporting portion 2543 connected between the second circular arc rail 2541 and the connecting portion 2542, wherein the second circular arc rail 2541 is rotatably connected to the positioning seat 251, and the connecting portion 2542 is rotatably connected to the connecting member 256. The second arc rail 2541 is an arc-shaped block, the back surface of the arc-shaped block is used for being slidably attached to the inner surface of the second arc-shaped groove 2511 of the first seat body 2510, and the front surface of the arc-shaped block is used for being slidably attached to the first arc-shaped convex surface 2517 of the second seat body 2516. The end of the connecting portion 2542 away from the second circular arc rail 2541 is provided with a shaft hole 2544 along the direction parallel to the axis of the second circular arc rail 2541, the first connecting shaft 2501 is arranged in the shaft hole 2544 in a penetrating mode, the connecting portion 2542 extends out of two opposite ends of the first connecting shaft 2501, and the axis of the first connecting shaft 2501 is parallel to the axis of the second circular arc rail 2541. In this embodiment, the supporting portion 2543 is an arc-shaped strip, and opposite ends of the supporting portion 2543 are respectively connected to an end portion of the second arc-shaped rail 2541 and an end portion of the connecting portion 2542. Preferably, the side of the connecting portion 2542 facing away from the second circular arc rail 2541 forms a circular arc surface, which facilitates the rotation of the first rotating member 254 relative to the connecting member 256.

In some embodiments, the first connection shaft 2501 is integrally formed with the first rotation member 254, which facilitates processing and reduces manufacturing costs.

In some embodiments, the first connecting shaft 2501 may also be disposed on the connecting member 256, and the first connecting hole 2503 is disposed on the first rotating member 254, where the first connecting shaft 2501 is rotatably connected to the first connecting hole 2503 of the connecting portion 2542 of the first rotating member 254. The first coupling shaft 2501 may be integrally formed with the coupling 256.

The second rotating member 255 includes a third circular arc rail 2552, a connecting portion 2553, and a supporting portion 2555 connected between the third circular arc rail 2552 and the connecting portion 2553, wherein the third circular arc rail 2552 is rotatably connected to the positioning seat 251, and the connecting portion 2553 is rotatably connected to the connecting member 256. The third arc rail 2552 is an arc-shaped block, the back surface of the arc-shaped block is used for being slidably attached to the inner surface of the third arc-shaped groove 2512 of the first seat body 2510, and the front surface of the arc-shaped block is used for being slidably attached to the second arc-shaped convex surface 2518 of the second seat body 2516. One end of the connecting portion 2553 away from the third circular arc rail 2552 is provided with a shaft hole 2554 along a direction parallel to the axis of the third circular arc rail 2552, the second connecting shaft 2502 penetrates through the shaft hole 2554, and two opposite ends of the second connecting shaft 2502 extend out of the connecting portion 2553; the axis of the second connecting shaft 2502 is parallel to the axis of the third circular arc rail 2552. Preferably, the side of the connecting portion 2553 facing away from the third circular arc rail 2552 forms a circular arc surface, which facilitates the rotation of the second rotating member 254 relative to the connecting member 256.

In some embodiments, the second connection shaft 2502 is integrally formed with the second rotation member 255, so that the processing is convenient and the manufacturing cost can be reduced.

In some embodiments, a second connection shaft 2502 may also be provided on the connection member 256, and a second connection hole 2504 is provided on the second rotation member 255, where the second connection shaft 2502 is rotatably connected to the second connection hole 2504 of the connection portion 2542 of the second rotation member 255. Second coupling shaft 2502 may be integrally formed with coupling 256.

In some embodiments, the second circular arc groove 2511 on the positioning seat 251 and the second circular arc rail 2541 on the first rotation member 254 may be interchanged. Such as: an arc groove may be provided on the second arc rail 2541, an arc rail corresponding to the arc groove is provided on the positioning seat 251, and the arc rail is rotatably inserted into the arc groove, and an axis of the arc groove, an axis of the arc rail, and an axis of rotation between the first rotating member 254 and the positioning seat 251 are collinear.

In some embodiments, the third circular arc groove 2512 on the positioning seat 251 and the third circular arc rail 2552 on the third rotation member 255 may be interchanged. Such as: an arc groove may be provided on the third arc rail 2552, an arc rail corresponding to the arc groove is provided on the positioning seat 251, the arc rail is rotatably inserted into the arc groove, the axis of the arc rail, and the axis of rotation between the third rotating member 255 and the positioning seat 251 are collinear.

As shown in fig. 7-10, the connecting member 256 is in a strip shape, at least one end of the connecting plate 2560 is provided with a first circular arc rail 2562, and the first circular arc rail 2562 is rotatably accommodated in the first circular arc groove 2334 of the side supporting member 233. The connection plate 2560 is provided with a pair of first connection portions 2564 spaced apart from each other and a pair of second connection portions 2565 spaced apart from each other on a surface (i.e., front surface) facing the side support 233, the connection portion 2542 of the first rotation member 254 is rotatably connected between the pair of first connection portions 2564, and the connection portion 2553 of the second rotation member 255 is rotatably connected between the pair of second connection portions 2565. In this embodiment, the pair of first connection portions 2564 are first lugs protruding from the front surface of the connection plate 2560, and the first connection hole 2503 is disposed at one end of the first lugs away from the connection plate 2560; the pair of second connection portions 2565 are second lugs protruding from the front surface of the connection plate 2560, and the second connection holes 2504 are formed in the second lugs. The connection plate 2560 is provided with a clearance groove between the pair of second connection portions 2565, where the clearance groove is used to avoid the connection portion 2553 of the second rotating member 255, so as to prevent the second rotating member 255 from being unable to rotate relative to the connection member 256.

As shown in fig. 7-10, the rotating shaft device 22 further includes a back cover 28, and the positioning seat 251 is connected to the back cover 28. Specifically, the back cover 28 is a bar frame, the back cover 28 has a receiving groove 280, and the positioning seat 251 is accommodated in the receiving groove 280 and fixedly connected to the back cover 28. Preferably, the back cover 28 is provided with a mounting portion (not shown) on an inner surface of the receiving groove 280, and the positioning seat 251 is connected to the mounting portion. The connection between the positioning seat 251 and the mounting portion may be, but not limited to, a screw connection, a clamping connection, or an adhesive connection.

Referring to fig. 5-15, when the rotating shaft device 22 is assembled, the end portions of the connecting portions 2542 of the two first rotating members 254 far from the second circular arc rail 2541 are respectively accommodated between a pair of first connecting portions 2564 of the two connecting members 256, so that two first connecting shafts 2501 are respectively inserted into the shaft holes 2544 of the two connecting portions 2542 and the corresponding first connecting holes 2503, and the two first connecting members 254 are respectively rotatably connected to the two connecting members 256; the end portions of the connecting portions 2553 of the two second rotating members 255, which are far from the third circular arc rail 2552, are respectively accommodated between a pair of second connecting portions 2565 of the two connecting members 256, so that the two second connecting shafts 2502 are respectively inserted into the shaft holes 2554 of the two connecting portions 2553 and the corresponding second connecting holes 2504, and the two second rotating members 255 are respectively rotatably connected to the two connecting members 256. The second circular arc rails 2541 of the two first rotating members 254 are respectively accommodated in the two second circular arc grooves 2511 of the first base 2510, the third circular arc rails 2552 of the two second rotating members 255 are respectively accommodated in the two third circular arc grooves 2512 of the first base 2510, the second base 2516 is covered on the first base 2510, the two first circular arc convex surfaces 2517 of the second base 2516 are respectively attached to the front surfaces of the two second circular arc rails 2541 and the two second circular arc convex surfaces 2518 are respectively attached to the front surfaces of the two third circular arc rails 2552, so that the first rotating member 254 and the second rotating member 255 are respectively connected to the positioning base 251 in a rotating manner. At this time, the rotational axis C3 between the first rotating member 254 and the positioning seat 251 is spaced in parallel with the rotational axis C4 between the second rotating member 255 and the positioning seat 251.

Inserting the two driven shafts 264 into the two connection holes 2515 of the positioning seat 2510, respectively; the two side supporting members 233 are respectively disposed on opposite sides of the front surface of the rotating assembly 25, so that the two driven shafts 264 are respectively inserted into the driven grooves 2620 of the two side supporting members 233, and the first circular arc rails 2562 of the two connecting members 256 are respectively slidably received in the first circular arc grooves 2334 of the two side supporting members 233.

The rotating assembly 25 is placed in the back cover 28, and the positioning seat 251 is connected to the back cover 28. When the two side supporting members 233 are in the flattened state, the front surfaces of the two side supporting members 233 are coplanar with the front surface of the positioning seat 251, the first circular arc rail 2562 is rotatably accommodated in the corresponding first circular arc groove 2334, the driven shaft 264 is slidably and rotatably inserted into the driven groove 2620, and the driven shaft 264 is positioned at the first limiting section 2621 of the driven groove 2620, so as to prevent the side supporting members 233 from being folded back due to further unfolding. When the two side support members 233 are in the bent state, the front surfaces of the two side support members 233 and the front surface of the positioning seat 251 enclose a droplet-shaped space, the first arc rail 2562 is rotatably received in the corresponding first arc groove 2334, the driven shaft 264 is slidably and rotatably inserted into the driven groove 2620, and the driven shaft 264 is positioned at the second limiting section of the driven groove 2620 to prevent the side support members 233 from being further bent.

As shown in fig. 7 and 16, when the rotation shaft device 22 is in the flattened state, the first distance L1 between the rotation axis C3 between the first rotation member 254 and the positioning seat 251 and the first rotation axis C1 between the first rotation member 254 and the connecting member 256 is greater than the second distance L2 between the rotation axis C4 between the second rotation member 255 and the positioning seat 251 and the second rotation axis C2 between the second rotation member 255 and the connecting member 256. The first pitch L1 is a pitch between the first rotation axis C1 and the rotation axis C3 along the flattening direction, and the second pitch L2 is a pitch between the second rotation axis C2 and the rotation axis C4 along the flattening direction. Specifically, the first rotation axis C1 is the axis of the first connection shaft 2501, the second rotation axis C2 is the axis of the second connection shaft 2502, the rotation axis C3 between the first rotation member 254 and the positioning seat 251 is the axis of the virtual shaft, and the rotation axis C4 between the second rotation member 255 and the positioning seat 251 is the axis of the virtual shaft; the first rotation axis C1, the second rotation axis C2, the rotation axis C3, and the rotation axis C4 are parallel to each other, the rotation axis C3 and the rotation axis C4 are closer to the flexible member than the first rotation axis C1 and the second rotation axis C2, and the first rotation axis C1 is closer to the flexible member than the second rotation axis C2, that is, the first rotation axis C1 is farther from the connecting plate 2560 than the second rotation axis C2.

In some embodiments, the axis of rotation C3 between the first rotating member 254 and the positioning seat 251 and the axis of rotation C4 between the second rotating member 255 and the positioning seat 251 may also be collinear.

When the connecting piece 256 drives the first rotating piece 254 and the second rotating piece 255 to rotate relative to the positioning seat 251, the rotation of the rotating mechanism 253 drives the side supporting piece 233 to rotate relative to the connecting piece 256, and the driven shaft 264 rotates and slides in the corresponding driven groove 2620, so that the two side supporting pieces 233 are bent or unfolded. Specifically, the first rotating member 254 rotates relative to the positioning seat 251 through the second circular arc rail 2541 and the second circular arc slot 2511, and the second rotating member 255 rotates relative to the positioning seat 251 through the third circular arc rail 2552 and the third circular arc slot 2512, so as to drive the driven member 262 on the side supporting member 233 to rotate and slide relative to the corresponding driven shaft 264, and the first circular arc rail 2562 of the connecting member 256 is rotationally connected to the corresponding first circular arc slot 2334, so as to achieve mutual bending or mutual unfolding of the two side supporting members 233.

As shown in fig. 18-22, when the rotating shaft device 22 is folded from the flattened state, one of the connecting members 256 is folded towards the other connecting member 256 relative to the positioning seat 251, wherein the connecting member 256 drives the second circular arc rail 2541 of the first rotating member 254 to rotate in the second circular arc groove 2511 of the positioning seat 251, drives the third circular arc rail 2552 of the second rotating member 255 to rotate in the third circular arc groove 2512 of the positioning seat 251, and simultaneously drives the side supporting member 233 to move relative to the positioning seat 251, i.e. the first circular arc rail 2562 of the connecting member 256 rotates in the first circular arc groove 2334 of the side supporting member 233; meanwhile, the driven shaft 264 on the positioning seat 251 slides and rotates in the driven groove 2620 of the corresponding driven member 262, the driven shaft 264 gradually moves from the first limit section 2621 to the second limit section 2623 of the driven groove 2620, so that the side support members 233 on two opposite sides of the positioning seat 251 are close to each other until the driven shaft 264 is limited on the second limit section 2623 of the driven groove 2620, and the two side support members 233 and the positioning seat 251 enclose a cross section into a water drop shape.

As shown in fig. 7, 15 and 16, during the bending process of the side support 233 relative to the positioning seat 251, the first circular arc rail 2562 slides in the first circular arc groove 2334, and simultaneously, the driven shaft 264 slides and rotates in the driven groove 2620, so that the driven shaft 264 gradually moves from the first limit section 2621 to the second limit section 2623 of the driven groove 2620; meanwhile, the first rotating member 254 and the second rotating member 255 on opposite sides of the positioning seat 251 are close to each other, so that the first rotating axis C1 on opposite sides of the positioning seat 251 are close to each other and the second rotating axis C2 on opposite sides of the positioning seat 251 are close to each other, until the front surfaces of the two side supporting members 233 and the front surface of the positioning seat 251 enclose a space with a cross section in a droplet shape.

In other bending modes, the two connecting pieces 256 may be rotated together in opposite directions, the two first rotating pieces 254 are moved toward each other by the relative rotation of the second circular arc rail 2541 and the corresponding second circular arc slot 2511, the two second rotating pieces 255 are moved toward each other by the relative rotation of the third circular arc rail 2552 and the corresponding third circular arc slot 2512, and the first circular arc rail 2562 of each connecting piece 256 slides in the corresponding first circular arc slot 2334; meanwhile, the follower 262 on each side support 233 slides along the corresponding follower shaft 264 and rotates, specifically, the rotating shaft 264 gradually moves from the first limit section 2621 to the second limit section 2623 of the follower groove 262, so that the two side supports 233 are close to each other until the follower shaft 264 is positioned at the second limit section 2623, and at this time, the front surfaces of the two side supports 233 and the front surface of the positioning seat 251 enclose a cross section into a water drop shape.

When the rotating shaft device 22 is unfolded from the bending state, one connecting piece 256 is unfolded far away from the other connecting piece 256 relative to the positioning seat 251, wherein the connecting piece 256 drives the second arc rail 2541 of the first rotating piece 254 to rotate in the second arc groove 2511 of the positioning seat 251, drives the third arc rail 2552 of the second rotating piece 255 to rotate in the third arc groove 2512 of the positioning seat 251, and simultaneously drives the side supporting piece 233 to move relative to the positioning seat 251, namely, the first arc rail 2562 of the connecting piece 256 rotates in the first arc groove 2334 of the side supporting piece 233; meanwhile, the driven shaft 264 on the positioning seat 251 slides and rotates in the driven groove 2620 of the corresponding driven member 262, specifically, the driven shaft 264 gradually shifts from the second limit section 2623 to the first limit section 2621 of the driven groove 2620, so that the side supporting members 233 on the opposite sides of the positioning seat 251 are mutually spread out until the driven shaft 264 is limited at the first limit section 2621 of the driven groove 2620; at this time, the two side supporting pieces 233 and the positioning seat 251 are flattened.

As shown in fig. 7, 22 and 23, during the flattening process of the side support 233 relative to the positioning seat 251, the first circular arc rail 2562 slides in the first circular arc groove 2334, and simultaneously, the driven shaft 264 slides and rotates in the driven groove 2620, so that the driven shaft 264 gradually moves from the second limiting section 2623 to the first limiting section 2621 of the driven groove 2620. Meanwhile, the first rotating member 254 and the second rotating member 255 on opposite sides of the positioning seat 251 are far away from each other, so that the first rotating axes C1 on opposite sides of the positioning seat 251 are far away from each other, and the second rotating axes C2 on opposite sides of the positioning seat 251 are far away from each other, until the two side supporting members 233 are smoothly flattened, so that the front faces of the two side supporting members 233 are coplanar with the front face of the positioning seat 251.

In other usage modes, the two connecting pieces 256 may be rotated together in a direction away from each other, the two first rotating pieces 254 are rotated relative to the corresponding second circular arc grooves 2511 by the second circular arc rail 2541, the two second rotating pieces 255 are rotated relative to the corresponding third circular arc grooves 2512 by the third circular arc rail 2552, the first circular arc rail 2562 of each connecting piece 256 slides in the corresponding first circular arc groove 2334, at the same time, the follower 262 on each side supporting piece 233 slides along the corresponding follower shaft 264 and rotates, and the follower shaft 264 gradually moves from the second limiting section 2623 to the first limiting section 2621 of the follower shaft 262, so that the two side supporting pieces 233 are separated from each other until the follower shaft 264 is positioned at the first limiting section 2621, at this time, the front faces of the two side supporting pieces 233 are flush with the front faces of the positioning seats 251.

Referring to fig. 1-4, the installed rotating shaft device 22 is disposed between two frames 21, the connecting members 256 on opposite sides of the back cover 28 are respectively received in the receiving slots 216 of the two frames 21, and the two connecting members 256 are respectively and fixedly connected to the two frames 21. At this time, the front surfaces 211 of the two frames 21, the front surfaces of the two side supports 233, and the front surface 2311 of the positioning seat 251 are coplanar. The back of the flexible piece 30 is connected to the front 211 of the two frames 21 and the front of the rotating shaft device 22; specifically, the bendable region 31 is attached to the front surface of the rotating shaft device 22, and the two non-bendable regions 33 are attached to the front surfaces of the two frames 21, respectively. The driven member 262 and the positioning seat 251 are connected in a sliding and rotating fit manner through the driven shaft 264 and the driven groove 2620, the side supporting member 233 and the connecting member 256 are connected in a matching manner through the first circular arc rail 2562 and the first circular arc groove 2334, and the two driven members 262 are mutually staggered, so that the connection between each element in the rotating shaft device 22 is compact, the whole width of the rotating shaft device 22 is reduced, the occupied internal space of the shell 20 is reduced, the layout of other elements such as a main board or a battery is facilitated, and the miniaturization of the electronic equipment 100 is facilitated.

Referring to fig. 11-22, when bending the electronic device 100, a bending force is applied to at least one of the two frames 21 of the electronic device 100, so that the rotating mechanism 253 connected to the two frames 21 rotates in directions adjacent to each other, the bending of the rotating shaft device 22 is achieved through the rotating assembly 25 and the follower 262, and the bendable region 31 of the flexible member 30 bends along with the rotating shaft device 22. Specifically, a bending force is applied to one of the frames 21, and the frame 21 drives the corresponding connecting piece 256 to rotate relative to the positioning seat 251, and the rotation of the connecting piece 256 drives the first rotating piece 254 and the second rotating piece 255 to rotate relative to the positioning seat 251 towards the side close to the flexible piece 30; meanwhile, the connecting piece 256 drives the first arc rail 2562 to rotate in the first arc groove 2334 of the side supporting piece 233, the driven shaft 264 on the positioning seat 251 slides in the driven groove 2620 of the corresponding driven piece 262 and rotates, so that the rotating mechanisms 253 on two opposite sides of the positioning seat 251 relatively rotate to be mutually close to drive the two side supporting pieces 233 to be mutually close until the two side supporting pieces 233 and the positioning seat 251 enclose a cross section into a water drop shape; the bendable region 31 of the flexible member 30 is bent along with the rotating shaft device 22 until the bendable region 31 is bent into a droplet shape, thereby realizing the folding of the electronic device 100.

In the process of bending the electronic device 100, the bendable region 31 of the flexible member 30 is bent to form a droplet shape, so that the duty ratio of the bent bendable region 31 is reduced, and the overall thickness of the electronic device 100 can be reduced.

In other bending modes of the electronic device 100, bending forces can be applied to the two frames 21 at the same time, and the two frames 21 respectively drive the two rotating mechanisms 253 to rotate towards one side close to the flexible member 30, and drive the two side supporting members 233 to mutually approach, and bending of the electronic device 100 is achieved through the rotating shaft device 22.

When it is necessary to flatten the electronic apparatus 100, one of the frames 21 is pulled outward, so that the two rotating mechanisms 253 connected to the two frames 21 are rotated in directions away from each other. Specifically, an outward pulling force is applied to one of the frames 21 of the electronic device 100, and the frame 21 drives the corresponding first rotating member 254 to rotate relative to the positioning seat 251 toward a side away from the flexible member 30, and drives the corresponding second rotating member 255 to rotate relative to the positioning seat 251 toward a side away from the flexible member 30. One of the connecting members 256 drives the side supporting member 233 to move relative to the positioning seat 251, so that the side supporting member 233 drives the driven member 262 to slide and rotate relative to the driven shaft 264 on the positioning seat 251, that is, the driven shaft 264 on the positioning seat 251 slides and rotates in the driven groove 2620; meanwhile, the connecting piece 256 drives the first circular arc rail 2562 to rotate in the corresponding first circular arc groove 2334, so that the side supporting pieces 233 on two opposite sides of the positioning seat 251 are mutually unfolded until the two side supporting pieces 233 and the positioning seat 251 are in a flattened shape, and the bendable region 31 of the flexible piece 30 is unfolded along with the rotating shaft device 22 until the flexible piece 30 is flattened.

In other unfolding modes of the electronic device 100, an outward pulling force can be applied to the two frames 21 at the same time, and the two frames 21 respectively drive the two rotating mechanisms 253 to rotate relative to the side far from the flexible member 30, so that the two side supporting members 233 rotate relative to the side far from the flexible member 30, and the unfolding of the electronic device 100 is realized through the rotating shaft device 22.

The hinge device 22 of the electronic device 100 of the present application is bent or unfolded by the rotating assembly 25 and the driven mechanism 26, and since the first axis of rotation C1 between the first rotating member 254 and the connecting member 256 and the second axis of rotation C2 between the second rotating member 255 and the connecting member 256 are offset in parallel, the side supporting member 233 and the positioning seat 251 are connected with the driven shaft 264 in a matching manner by the inclined driven groove 2620, and the two driven members 262 are offset from each other, the connection between each element in the hinge device 22 is compact, thereby reducing the overall width of the hinge device 22, reducing the internal space occupied by the housing 20, and facilitating the layout of other elements such as a motherboard or a battery. Secondly, the structure of the rotating shaft device 22 is firm, and the overall strength of the electronic device 100 is improved.

Referring to fig. 24 and 25, the structure of the rotating shaft device 22a in the second embodiment of the present application is similar to that of the rotating shaft device 22 in the first embodiment, except that: the first rotating member 254 and the side supporting member 233 of the rotating shaft device 22a in the second embodiment are connected with each other by a first limiting groove and a first limiting portion, the first limiting groove is formed in one of the first rotating member 254 and the side supporting member 233, and the first limiting portion is formed in the other of the first rotating member 254 and the side supporting member 233. In this embodiment, the back surface 2332 of the side support member 233 is provided with a protruding limiting block 2337 corresponding to the first rotating member 254, the limiting block 2337 is provided with an arc-shaped first limiting groove 2338, the first limiting groove 2338 penetrates through two opposite side surfaces of the limiting block 2337, and the first limiting groove 2338 is bent and extended to a side close to the positioning seat 251. The surface of the first rotating member 254 facing the limiting block 2337 is provided with a first limiting portion 2540, and the first limiting portion 2540 is slidably and rotatably inserted into the first limiting groove 2338. Specifically, a connecting hole is formed in a surface of the connecting portion 2542 facing the limiting block 2337, which is far away from the second circular arc rail 2541, and the first limiting portion 2540 is connected to the connecting hole. In this embodiment, a connecting cylinder is protruding from a surface of the connecting portion 2542 facing the limiting block 2337 away from the second circular arc rail 2541, and the first limiting portion 2540 is connected to an inner cavity of the connecting cylinder; further, the first limiting portion 2540 is a first limiting shaft inserted and fixed in the inner cavity of the connecting cylinder, and the axis of the first limiting shaft is parallel to the axis of the second circular arc rail 2541. One end of the first limiting portion 2540 is fixedly connected to the connecting portion 2542, and the other end of the first limiting portion 2540 is used for slidably and rotatably penetrating the first limiting groove 2338 of the side supporting piece 233.

In some embodiments, the first limiting portion 2540 may also be integrally formed with the first rotating member 254. The first limiting portion 2540 slides along the first limiting groove 2338 and rotates during the folding or unfolding process of the rotating shaft device 22 a.

Preferably, the first limiting groove 2338 is an arc groove, the first limiting groove 2338 includes a first limiting section 2338a and a second limiting section 2338b at opposite ends thereof, the first limiting section 2338a is closer to the positioning seat 251 than the second limiting section 2338b, the first limiting shaft is disposed at one end of the first rotating member 254 away from the positioning seat 251, and the axial lead of the first limiting shaft is parallel to the first rotating shaft axis C1. When the two side support pieces 233 are in the flattened state, the first limiting shaft is positioned at the second limiting section 2338b so as to prevent the side support pieces 233 from being folded back to damage the flexible piece 30; when the two side supporting pieces 233 are in the fully folded state, the first limiting shaft is positioned at the first limiting section 2338a to prevent the side supporting pieces 233 from being further folded to damage the flexible pieces 30. During the bending process of the rotating shaft device 22a, the first limiting portion 2540 on the first rotating member 254 slides and rotates in the first limiting groove 2338, and the first limiting portion 2540 moves from the second limiting section 2338b to the first limiting section 2338a; during the flattening process of the rotating device 22c, the first limiting portion 2540 on the first rotating member 254 slides and rotates in the first limiting groove 2338, and the first limiting portion 2540 moves from the first limiting section 2338a to the second limiting section 2338b.

In some embodiments, the first stop 2540 on the first rotation member 254 and the first stop slot 2338 on the side support 233 may be interchanged; specifically, a first limiting groove may be formed on a surface of the first rotating member 254 facing the limiting block 2337, a first limiting shaft movably inserted in the first limiting groove may be formed on the limiting block 2337 of the side supporting member 233, and the first limiting shaft slides and rotates in the first limiting groove during the bending or unfolding process of the rotating shaft device 22 c.

The application also provides an electronic device provided with the rotating shaft device 22a, and the electronic device comprises the rotating device 22a, two frames connected with the connecting pieces 256 on two opposite sides of the rotating shaft device 22a, and a flexible piece 30 covered on the frames and the rotating shaft device 22 a.

Referring to fig. 26 and 27, the structure of the rotating shaft device 22b in the third embodiment of the present application is similar to that of the rotating shaft device 22 in the first embodiment, except that: the second rotating member 255 of the rotating shaft device 22b in the third embodiment is connected to the side supporting member 233 through a second limiting groove and a second limiting portion, where the second limiting groove is disposed on one of the second rotating member 255 and the side supporting member 233, and the second limiting portion is disposed on the other of the second rotating member 255 and the side supporting member 233. In this embodiment, the back surface 2332 of the side support member 233 is provided with a protruding limiting block 2337 corresponding to the second rotating member 255, the limiting block 2337 is provided with an arc-shaped second limiting groove 2339, the second limiting groove 2339 penetrates through two opposite side surfaces of the limiting block 2337, and the second limiting groove 2339 extends to a side close to the positioning seat 251 in a bending manner. The surface of the second rotating member 255 facing the limiting block 2337 is provided with a second limiting portion 2550, and the second limiting portion 2550 is slidably and rotatably inserted into the second limiting groove 2339. The second limiting portion 2550 slides along the second limiting groove 2339 and rotates during the folding or unfolding process of the rotating shaft device 22 b.

Preferably, the second limiting groove 2339 is an arc-shaped groove, the second limiting groove 2339 includes a first limiting section 2339a and a second limiting section 2339b at opposite ends thereof, the first limiting section 2339a is closer to the positioning seat 251 than the second limiting section 2339b, the second limiting portion 2550 includes a second limiting shaft penetrating through the second limiting groove 2339, the second limiting shaft is disposed at one end of the second rotating member 255 away from the positioning seat 251, and an axial lead of the second limiting shaft is parallel to the second rotating axial lead C2. When the two side support pieces 233 are in the flattened state, the second limiting shaft is positioned at the second limiting section 2339b to prevent the side support pieces 233 from being folded back to damage the flexible piece 30; when the two side supports 233 are in the fully folded state, the second limiting shaft is positioned at the first limiting section 2339a to prevent the side supports 233 from being further folded to damage the flexible member 30. During the bending process of the rotating shaft device 22b, the second limiting portion 2550 on the second rotating member 255 slides and rotates in the second limiting groove 2339, and the second limiting portion 2550 moves from the second limiting section 2339b to the first limiting section 2339a; during the flattening process of the rotating device 22b, the second limiting portion 2550 on the second rotating member 255 slides and rotates in the second limiting groove 2339, and the second limiting portion 2550 moves from the first limiting section 2339a to the second limiting section 2339b.

In some embodiments, the second limiting portion 2550 on the second rotating member 255 and the second limiting groove 2339 on the side supporting member 233 may be interchanged, specifically, a second limiting groove may be disposed on a side surface of the second rotating member 255 facing the limiting block 2337, and a second limiting shaft movably inserted in the second limiting groove may be disposed on the limiting block 2337 of the side supporting member 233, and during bending or unfolding of the rotating shaft device 22b, the second limiting shaft slides and rotates in the second limiting groove.

The application also provides an electronic device provided with the rotating shaft device 22b, and the electronic device comprises the rotating shaft device 22b, two frames connected with connecting pieces 256 on two opposite sides of the rotating shaft device 22b, and a flexible piece 30 covered on the frames and the rotating shaft device 22 b.

Referring to fig. 28 and 29 together, the structure of the rotating shaft device 22c according to the fourth embodiment of the present application is similar to that of the rotating shaft device 22 according to the first embodiment, except that: the first rotating member 254 and the side supporting member 233 of the rotating shaft device 22c in the fourth embodiment are connected with each other by a first limiting groove and a first limiting portion, the first limiting groove is formed in one of the first rotating member 254 and the side supporting member 233, and the first limiting portion is formed in the other of the first rotating member 254 and the side supporting member 233; and the second rotating member 255 of the rotating shaft device 22c is connected with the side supporting member 233 through the cooperation of a second limiting groove and a second limiting portion, the second limiting groove is arranged on one of the second rotating member 255 and the side supporting member 233, and the second limiting portion is arranged on the other of the second rotating member 255 and the side supporting member 233. In this embodiment, the back surface 2332 of the side support member 233 is provided with a limiting block 2337 corresponding to the first rotating member 254 and the second rotating member 255, an arc-shaped first limiting groove 2338 is formed on the limiting block 2337 corresponding to the first rotating member 254, the first limiting groove 2338 penetrates through two opposite side surfaces of the limiting block 2337, and the first limiting groove 2338 is bent and extended to a side close to the positioning seat 251; an arc-shaped second limiting groove 2339 is formed in the limiting block 2337 corresponding to the second rotating piece 255, the second limiting groove 2339 penetrates through two opposite side surfaces of the limiting block 2337, and the second limiting groove 2339 is bent and extended to one side close to the positioning seat 251. The surface of the first rotating piece 254 facing the limiting block 2337 is provided with a first limiting part 2540, and the first limiting part 2540 can be slidably and rotatably inserted into the first limiting groove 2338; the surface of the second rotating member 255 facing the limiting block 2337 is provided with a second limiting portion 2550, and the second limiting portion 2550 is slidably and rotatably inserted into the second limiting groove 2339. In the folding or unfolding process of the rotating shaft device 22e, the first limiting portion 2540 slides along the first limiting groove 2338 and rotates, and at the same time, the second limiting portion 2550 slides along the second limiting groove 2339 and rotates.

Preferably, the first limiting groove 2338 and the second limiting groove 2339 are arc-shaped grooves, the first limiting groove 2338 comprises a first limiting section 2338a and a second limiting section 2338b at opposite ends, and the first limiting section 2338a is closer to the positioning seat 251 than the second limiting section 2338 b; the second limiting groove 2339 includes a first limiting section 2339a and a second limiting section 2339b at opposite ends thereof, and the first limiting section 2339a is closer to the positioning seat 251 than the second limiting section 2339b. The first limiting part 2540 comprises a first limiting shaft penetrating through the first limiting groove 2338, the first limiting shaft is arranged at one end of the first rotating piece 254, which is far away from the positioning seat 251, and the axial lead of the first limiting shaft is parallel to the first rotating axis C1; the second limiting shaft is arranged at one end of the second rotating member 255, which is far away from the positioning seat 251, and the axial line of the second limiting shaft is parallel to the second rotating axial line C2. The axis of the first limiting shaft is parallel to the axis of the second limiting shaft, and the axis of the first limiting shaft is parallel to the axis of the rotation between the first rotating member 254 and the positioning seat.

When the two side support pieces 233 are in a flattened state, the first limiting shaft is positioned at the second limiting section 2338b of the first limiting groove 2338 and the second limiting shaft is positioned at the second limiting section 2339b of the second limiting groove 2339, so as to prevent the side support pieces 233 from being folded reversely to damage the flexible piece 30; when the two side supporting pieces 233 are in the fully folded state, the first limiting shaft is positioned at the first limiting section 2338a of the first limiting groove 2338 and the second limiting shaft is positioned at the first limiting section 2339a of the second limiting groove 2339, so as to prevent the side supporting pieces 233 from being further folded to damage the flexible piece 30. During the bending process of the rotating shaft device 22c, the first limiting portion 2540 on the first rotating member 254 slides and rotates in the first limiting groove 2338, and the first limiting portion 2540 moves from the second limiting section 2338b to the first limiting section 2338a, meanwhile, the second limiting portion 2550 on the second rotating member 255 slides and rotates in the second limiting groove 2339, and the second limiting portion 2550 moves from the second limiting section 2339b to the first limiting section 2339a; during the flattening process of the rotating device 22c, the first limiting portion 2540 on the first rotating member 254 slides and rotates in the first limiting groove 2338, and the first limiting portion 2540 moves from the first limiting section 2338a to the second limiting section 2338b, and at the same time, the second limiting portion 2550 on the second rotating member 255 slides and rotates in the second limiting groove 2339, and the second limiting portion 2550 moves from the first limiting section 2339a to the second limiting section 2339b.

The application also provides an electronic device provided with the rotating shaft device 22c, and the electronic device comprises the rotating shaft device 22c, two frames connected with connecting pieces 256 on two opposite sides of the rotating shaft device 22c, and a flexible piece 30 covered on the frames and the rotating shaft device 22 c.

The foregoing is a description of embodiments of the present application, and it should be noted that, for those skilled in the art, modifications and variations can be made without departing from the principles of the embodiments of the present application, and such modifications and variations are also considered to be within the scope of the present application.

Claims

1. A spindle assembly, the spindle assembly comprising:

a support mechanism comprising two side supports;

the rotating assembly comprises a positioning seat and rotating mechanisms arranged on two opposite sides of the positioning seat, the rotating mechanisms comprise a first rotating piece, a second rotating piece and a connecting piece, one end of the first rotating piece is rotationally connected with the positioning seat, the other end of the first rotating piece, which is far away from the positioning seat, is rotationally connected with the connecting piece, one end of the second rotating piece is rotationally connected with the positioning seat, the other end of the second rotating piece, which is far away from the positioning seat, is rotationally connected with the connecting piece, and a first rotating axis line between the first rotating piece and the connecting piece is parallel to a second rotating axis line between the second rotating piece and the connecting piece; and

The driven mechanism comprises a driven piece connected with the side supporting piece, and the driven piece is slidingly and rotationally connected with the positioning seat;

wherein the side support is rotatably connected with the connecting member; when the two connecting pieces are mutually closed, the first rotating piece and the second rotating piece rotate relative to the positioning seat and the connecting piece to be mutually closed, and the driven piece slides and rotates relative to the positioning seat so as to enable the two side supporting pieces to be mutually folded; when the two connecting pieces are far away from each other, the first rotating piece and the second rotating piece rotate relative to the positioning seat and the connecting piece to be far away from each other, and the driven piece slides and rotates relative to the positioning seat so as to enable the two side supporting pieces to be unfolded from each other.

2. The rotary shaft device according to claim 1, wherein the positioning seat and the driven member are connected by matching a driven shaft with a driven groove, the driven shaft is slidably and rotatably inserted into the driven groove, the axis of the driven shaft is parallel to the first rotation axis, the driven shaft is disposed on one of the positioning seat and the driven member, and the driven groove is disposed on the other of the driven member and the positioning seat.

3. The rotating shaft device according to claim 2, wherein one end of the driven shaft is connected to the positioning seat, the driven member is provided with an inclined driven groove, and the other end of the driven shaft is penetrated through the driven groove; the driven shaft rotates and slides in the driven groove during the process of bending or unfolding the two side support pieces.

4. A spindle assembly according to claim 3, wherein the driven groove extends obliquely upward from a side adjacent the side support toward the positioning seat when the side support is in a flattened state relative to the positioning seat.

5. The rotary shaft device according to claim 2, wherein the side supporting member comprises a side supporting plate, the driven member comprises an extension bar arranged on one side of the side supporting plate near the positioning seat, the driven groove is arranged on the extension bar, the driven groove comprises a first limiting section and a second limiting section at two opposite ends of the driven groove, the first limiting section is closer to the side supporting plate than the second limiting section, when the two side supporting members are in a fully folded state, the driven shaft is positioned at the second limiting section, and when the two side supporting members are in a flattened state, the driven shaft is positioned at the first limiting section.

6. The rotary shaft device according to claim 5, wherein the extension bar extends obliquely from the side support plate to a side away from the connecting member, the driven groove extends in the extending direction of the extension bar, and opposite ends of the driven groove extend to near opposite ends of the extension bar, respectively.

7. A spindle assembly according to claim 1, wherein the side of the two side support members adjacent to the positioning seat is provided with the followers, respectively, both of which are displaced in a direction parallel to the first axis of rotation.

8. The spindle assembly of claim 1 wherein said first axis of rotation is further from said positioning seat than said second axis of rotation.

9. The apparatus according to claim 8, wherein the connecting member includes a connecting plate, the first rotating member and the second rotating member are rotatably connected to a front surface of the connecting plate, respectively, and the first rotation axis is farther from the connecting plate than the second rotation axis.

10. The rotary shaft device according to claim 1, wherein the first rotating member and the side supporting member are connected by a first limit groove and a first limit portion, the first limit groove is formed in one of the first rotating member and the side supporting member, and the first limit portion is formed in the other of the first rotating member and the side supporting member; and/or the second rotating piece is connected with the side supporting piece through the matching of a second limiting groove and a second limiting part, the second limiting groove is formed in one of the second rotating piece and the side supporting piece, and the second limiting part is formed in the other of the second rotating piece and the side supporting piece.

11. The apparatus of claim 10, wherein the first limiting groove includes a first limiting section and a second limiting section at opposite ends thereof, the first limiting section being closer to the positioning seat than the second limiting section, the first limiting section including a first limiting shaft penetrating the first limiting groove, the first limiting shaft being positioned at the first limiting section when the two side supporting members are in a fully folded state, and the first limiting shaft being positioned at the second limiting section when the two side supporting members are in a flattened state.

12. The apparatus according to claim 10, wherein the second limiting groove includes a first limiting section and a second limiting section at opposite ends thereof, the first limiting section is closer to the positioning seat than the second limiting section, the second limiting section includes a second limiting shaft penetrating through the second limiting groove, the second limiting shaft is positioned at the first limiting section when the two side supporting members are in a fully folded state, and the second limiting shaft is positioned at the second limiting section when the two side supporting members are in a flattened state.

13. The rotary shaft device according to claim 1, wherein the first rotary member and the connecting member are connected in a matching manner by a first connecting shaft and a first connecting hole, the first connecting shaft is provided on one of the first rotary member and the connecting member, and the first connecting hole is provided on the other of the first rotary member and the connecting member; the second rotating piece is connected with the connecting piece through the cooperation of a second connecting shaft and a second connecting hole, the second connecting shaft is arranged on one of the second rotating piece and the connecting piece, and the second connecting hole is arranged on the other of the second rotating piece and the connecting piece.

14. The rotary shaft device according to claim 1, wherein a side of the side support member away from the positioning seat is connected with the connecting member in a matching manner by a first circular arc groove, an axis of the first circular arc groove is collinear with an axis of rotation between the side support member and the connecting member, the first circular arc groove is formed in one of the side support member and the connecting member, and the first circular arc rail is formed in the other of the side support member and the connecting member.

15. The rotary shaft device according to claim 1, wherein the first rotary member is connected with the positioning seat through a second circular arc groove in a matched manner with a second circular arc rail, and the axis of the second circular arc groove is collinear with the axis of rotation between the first rotary member and the positioning seat; the second circular arc groove is arranged on one of the positioning seat and the first rotating piece, and the second circular arc rail is arranged on the other of the positioning seat and the first rotating piece.

16. The rotary shaft device according to claim 1, wherein the second rotary member is connected with the positioning seat through a third circular arc groove and a third circular arc rail in a matching manner, and the axis of the third circular arc groove is collinear with the axis of rotation between the second rotary member and the positioning seat; the third circular arc groove is arranged on one of the positioning seat and the second rotating piece, and the third circular arc rail is arranged on the other one of the positioning seat and the second rotating piece.

17. A spindle apparatus according to claim 15 or claim 16, wherein the axis of rotation between the first rotatable member and the positioning seat is parallel or collinear with the axis of rotation between the second rotatable member and the positioning seat.

18. A folding casing, characterized in that the folding casing comprises a rotating shaft device according to any one of claims 1-17 and two frames, wherein the rotating shaft device is positioned between the two frames, and the two frames are respectively connected with connecting pieces of two rotating mechanisms of the rotating shaft device.

19. An electronic device comprising a flexible member and the folding housing of claim 18, wherein the flexible member is disposed on the folding housing.