Rotating shaft device, folding housing and electronic device

Abstract

The application provides a rotating shaft device, which comprises a positioning seat, rotating assemblies and a linkage mechanism. The rotating assemblies comprise two rotating mechanisms arranged on opposite sides of the positioning seat. The rotating mechanism comprises a rotating member and a driven member. The rotating member is rotatably connected with the positioning seat, and the driven member is rotatably connected with the positioning seat. The end of the driven member away from the positioning seat is slidably connected with the corresponding rotating member. The linkage mechanism comprises a linkage member arranged between the two driven members. The linkage member is slidably connected with each driven member through the cooperation of an eccentric part and a linkage groove. When one of the rotating members rotates relative to the positioning seat, the corresponding driven member rotates relative to the positioning seat. The two eccentric parts synchronously move in the two linkage grooves, and the linkage member moves relative to the positioning seat, so that the other driven member synchronously rotates relative to the positioning seat, and the two rotating members synchronously rotate relative to the positioning seat. The application also relates to a folding shell and an electronic device provided with the rotating shaft device.

Description

Technical Field

[0001] This invention relates to the field of flexible screen support, and more particularly to a pivot device for supporting a flexible screen, a foldable housing provided with the pivot device, and an electronic device provided with the foldable housing. Background Technology

[0002] With the development of display equipment, flexible displays have emerged, and foldable screen devices equipped with flexible displays are becoming increasingly popular due to their unique shapes and diverse functions. Currently, folding solutions for flexible displays include inward folding and outward folding. In related technologies, the flexible displays in foldable screen devices are generally supported by hinge mechanisms; however, existing hinge mechanisms typically achieve linkage functions through gear engagement, resulting in complex structures and occupying a significant amount of internal space in the foldable screen device. Summary of the Invention

[0003] This application provides a rotating shaft device, a folding housing provided with the rotating shaft device, and an electronic device provided with the folding housing.

[0004] This application provides a rotating shaft device, which includes a positioning seat, a rotating assembly, and a linkage mechanism. The rotating assembly includes a first rotating mechanism and a second rotating mechanism disposed on opposite sides of the positioning seat. Both the first and second rotating mechanisms include a rotating component and a driven component. The rotating components of the first and second rotating mechanisms are rotatably connected to the positioning seat, and the driven components of the first and second rotating mechanisms are rotatably connected to the positioning seat. The driven component on the same side of the positioning seat is slidably connected to the rotating component. The linkage mechanism includes a linkage component disposed between the driven components of the first and second rotating mechanisms. The linkage component is slidably connected to the driven components of the first and second rotating mechanisms respectively through an eccentric portion and a linkage groove. When the first rotating mechanism... When the rotating component of the first rotating mechanism rotates relative to the positioning seat, the driven component of the first rotating mechanism rotates relative to the positioning seat, and the two eccentric parts move synchronously in the two linkage slots respectively. At the same time, the linkage component moves relative to the positioning seat, causing the driven component of the second rotating mechanism to rotate synchronously relative to the positioning seat, so that the rotating components of the first rotating mechanism and the second rotating mechanism rotate synchronously relative to the positioning seat; or when the rotating component of the second rotating mechanism rotates relative to the positioning seat, the driven component of the second rotating mechanism rotates relative to the positioning seat, and the two eccentric parts move synchronously in the two linkage slots respectively. At the same time, the linkage component moves relative to the positioning seat, causing the driven component of the first rotating mechanism to rotate synchronously relative to the positioning seat, so that the rotating components of the first rotating mechanism and the second rotating mechanism rotate synchronously relative to the positioning seat.

[0005] This application also provides a folding housing, which includes a pivot device and two frames. The pivot device is located between the two frames, and the two frames are respectively connected to the ends of the rotating parts on opposite sides of the pivot device away from the positioning seat.

[0006] This application also provides an electronic device, which includes a flexible screen, two frames and a rotating device. The rotating device is located between the two frames. The ends of the rotating parts on opposite sides of the rotating device away from the positioning seat are respectively connected to the two frames. The flexible screen is disposed on the front of the two frames and the front of the rotating device.

[0007] In this invention, the linkage mechanism of the rotating shaft device achieves synchronous folding or flattening of the two driven parts relative to the positioning seat through the sliding cooperation of the eccentric part and the linkage groove between the driven part and the linkage part. This enables the two rotating parts to fold or flatten synchronously relative to the positioning seat, thereby realizing the linkage function of the rotating shaft device. Therefore, the linkage mechanism has a simple structure, fewer components, and lower manufacturing cost. Moreover, the linkage mechanism is small in size, which can reduce the volume of the rotating shaft device and thus reduce the internal space occupied by the rotating shaft device in the housing. This is not only beneficial to the layout of other components such as the motherboard or battery in electronic devices, but also to the miniaturization of electronic devices. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0009] Figure 1 This is a three-dimensional structural schematic diagram of an electronic device according to one embodiment of this application;

[0010] Figure 2 yes Figure 1 An exploded view of the folding housing and flexible screen of the electronic device.

[0011] Figure 3 yes Figure 2 A front view of the folding shell in the middle;

[0012] Figure 4 yes Figure 3 An enlarged view of section IV;

[0013] Figure 5 yes Figure 2 A further exploded diagram of the electronic devices in the diagram;

[0014] Figure 6 yes Figure 5 Enlarged view of the rotating shaft device in the diagram;

[0015] Figure 7 yes Figure 6 An exploded view of the three-dimensional structure of the rotating shaft device;

[0016] Figure 8 yes Figure 7 A three-dimensional structural diagram of the rotating shaft device from another perspective;

[0017] Figure 9 yes Figure 7 An exploded three-dimensional structural diagram of the positioning seat, support components, and rotating components.

[0018] Figure 10 yes Figure 9 A three-dimensional structural diagram of the positioning seat, support assembly, and rotating assembly from another perspective;

[0019] Figure 11 yes Figure 9 A further exploded three-dimensional structural diagram of the positioning seat and rotating assembly;

[0020] Figure 12 yes Figure 11 A three-dimensional structural diagram of the positioning seat and rotating assembly from another perspective;

[0021] Figure 13 yes Figure 11 Enlarged view of part of the rotating shaft device in the diagram;

[0022] Figure 14 yes Figure 12 Enlarged view of part of the rotating shaft device in the diagram;

[0023] Figure 15 yes Figure 1 A partial three-dimensional sectional view of the electronic equipment in the document;

[0024] Figure 16 yes Figure 1 Another partial three-dimensional sectional view of the electronic equipment in the picture;

[0025] Figure 17 yes Figure 16 A cross-sectional view of the electronic equipment in the document;

[0026] Figure 18 yes Figure 1 Another partial three-dimensional sectional view of the electronic equipment in the picture;

[0027] Figure 19 yes Figure 18 A cross-sectional view of the electronic equipment in the document;

[0028] Figure 20 yes Figure 1 Another partial three-dimensional sectional view of the electronic equipment in the picture;

[0029] Figure 21 yes Figure 20 A cross-sectional view of the electronic equipment in the document;

[0030] Figure 22 yes Figure 1 Another part of the electronic equipment

[0031] Figure 23 yes Figure 22 A cross-sectional view of the electronic equipment in the document;

[0032] Figure 24 yes Figure 1 A three-dimensional structural diagram of an electronic device folded to a certain angle;

[0033] Figure 25 yes Figure 24 A three-dimensional structural diagram of the rotating shaft device in the diagram;

[0034] Figure 26 yes Figure 25 A three-dimensional structural diagram of the rotating shaft device from another perspective;

[0035] Figures 27-30 yes Figure 25 Partial sectional views of different parts of the rotating shaft device in the image;

[0036] Figure 31 yes Figure 1 A three-dimensional structural diagram of the electronic device in its fully folded state;

[0037] Figure 32 yes Figure 31 A three-dimensional structural diagram of the rotating shaft device in the diagram;

[0038] Figure 33 yes Figure 32 A three-dimensional structural diagram of the rotating shaft device from another perspective;

[0039] Figures 34-37 yes Figure 31 Partial cross-sectional views of different parts of the electronic equipment. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Furthermore, the following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments that can be implemented in this application. Directional terms used in this application, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are merely for reference to the accompanying illustrations. Therefore, the directional terms used are for better and clearer explanation and understanding of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Please refer to the following: Figures 1 to 8 In one embodiment of the present invention, the electronic device 100 includes a folding housing 20 and a flexible screen 30 disposed on the folding housing 20. The flexible screen 30 can be, but is not limited to, flexible displays, flexible touchscreens, flexible touch displays, or other flexible components with corresponding functions, or a flexible component fixedly attached to a flexible support plate, such as a flexible display or flexible touchscreen attached to a flexible steel plate. The flexible screen 30 can be bent or flattened along with the folding housing 20. The folding housing 20 includes two frames 21 and a pivot device 22 connecting the two frames 21. The two frames 21 are respectively connected to opposite sides of the pivot device 22, and the two frames 21 are folded or flattened through the pivot device 22. The flexible screen 30 includes a bendable area 31 corresponding to the pivot device 22, and two non-bendable areas 33 connected to opposite sides of the bendable area 31. The two non-bendable areas 33 of the flexible screen 30 can be fixed to the front of the two frames 21, and the bendable area 31 is attached to the front of the pivot device 22. The bendable area 31 of the flexible screen 30 can be bent or flattened with the rotating shaft device 22.

[0044] The rotating shaft device 22 includes a positioning seat 23, a rotating assembly 25, and a support mechanism 27. The rotating assembly 25 includes a first rotating mechanism 250 and a second rotating mechanism 250' located on opposite sides of the positioning seat 23, and a linkage mechanism 257. Both the first rotating mechanism 250 and the second rotating mechanism 250' include a rotating member 251 and a driven member 253 located on the side of the positioning seat 23. That is, the two rotating members 251 of the rotating assembly 25 are located on opposite sides of the positioning seat 23, and the rotating members 251 of the first rotating mechanism 250 and the second rotating mechanism 250' rotate relative to the positioning seat 23. The driven member 253 of the first rotating mechanism 250 and the driven member 253 of the second rotating mechanism 250' are rotatably connected to the positioning seat 23, and the driven member 253 on the same side of the positioning seat 23 is slidably connected to the rotating member 251; the linkage mechanism 257 includes a linkage member 2570 disposed between the driven member 253 of the first rotating mechanism 250 and the driven member 253 of the second rotating mechanism 250', and the linkage member 2570 is slidably connected to the driven member 253 of the first rotating mechanism 250 and the driven member 253 of the second rotating mechanism 250' through the cooperation of the eccentric part and the linkage groove. When the rotating member 251 of the first rotating mechanism 250 rotates relative to the positioning seat 23, the driven member 253 of the first rotating mechanism 250 rotates relative to the positioning seat 23. The two eccentric parts move synchronously in the two linkage slots respectively. Simultaneously, the linkage member 2570 moves relative to the positioning seat 23, causing the driven member 253 of the second rotating mechanism 250' to rotate synchronously relative to the positioning seat 23, thereby achieving synchronous rotation of the rotating member 251 of the first rotating mechanism 250 and the rotating member 251 of the second rotating mechanism 250' relative to the positioning seat 23; or When the rotating member 251 of the second rotating mechanism 250' rotates relative to the positioning seat 23, the driven member 253 of the second rotating mechanism 250' rotates relative to the positioning seat 23. The two eccentric parts move synchronously in the two linkage slots respectively. At the same time, the linkage member 2570 moves relative to the positioning seat 23, causing the driven member 253 of the first rotating mechanism 250 to rotate synchronously relative to the positioning seat 23, so as to realize the synchronous rotation of the rotating member 251 of the first rotating mechanism 250 and the rotating member 251 of the second rotating mechanism 250' relative to the positioning seat 23.

[0045] In this embodiment, the linkage member 2570 is provided with linkage grooves 2571 at opposite ends. The driven member 253 of the first rotating mechanism 250 and the driven member 253 of the second rotating mechanism 250' are respectively provided with eccentric portions 2536 corresponding to the two linkage grooves 2571. The two eccentric portions 2536 are slidably accommodated in the two linkage grooves 2571.

[0046] The support assembly 27 includes side support members 271 disposed on opposite sides of the positioning seat 23 and a central support member 273 located between the two side support members 271. The two side support members 271 are rotatably connected to the rotating members 251 of the first rotating mechanism 250 and the rotating members 251 of the second rotating mechanism 250', respectively. The two side support members 271 are movably connected to the positioning seat 23, respectively. The central support member 273 is connected to the linkage member 2570 and moves with the linkage member 2570.

[0047] The positioning base 23 includes a connecting portion 230 at its end and a strip-shaped positioning frame 231. The positioning frame 231 has connecting portions 230 at opposite ends, and each connecting portion 230 is connected to a rotating component 25. Specifically, the rotating components 251 of the first rotating mechanism 250 and the second rotating mechanism 250' are rotatably connected to the connecting portion 230. The first rotating mechanism 250 and the second rotating mechanism 250' of each rotating component 25 can be symmetrically arranged along the centerline O of the positioning base 23's length direction, or they can be asymmetrical. In this embodiment, the first rotating mechanism 250 and the second rotating mechanism 250' of each rotating component 25 are symmetrical along the centerline O of the positioning base 23. One side support member 271 is rotatably connected to the rotating members 251 of the two first rotating mechanisms 250 on one side of the positioning seat 23, and the other side support member 271 is rotatably connected to the rotating members 251 of the two second rotating mechanisms 250' on the opposite side of the positioning seat 23.

[0048] When the rotating members 251 of the first rotating mechanism 250 and the second rotating mechanism 250' of the rotating assembly 25 rotate relative to the positioning seat 23 and move closer to each other, the driven members 253 of the first rotating mechanism 250 and the driven members 253 of the second rotating mechanism 250' rotate relative to the positioning seat 23. The driven members 253 of the first rotating mechanism 250 and the driven members 253 of the second rotating mechanism 250' slide relative to the linkage member 2570 through the cooperation of the eccentric portion and the linkage groove, simultaneously causing the linkage member 2570 to move relative to the positioning seat 23. The driven members 253 of the first rotating mechanism 250 and the second rotating mechanism 250' rotate synchronously relative to the positioning seat 23 and move closer to each other. The end of the driven member 253 away from the positioning seat 23 slides relative to the corresponding rotating member 251, so that the two side support members 271 rotate relative to the rotating members 251 of the first rotating mechanism 250 and the second rotating mechanism 250', respectively. The two side support members 271 slide and rotate relative to the positioning seat 23 and move closer to each other, so as to achieve synchronous folding of the two side support members 271. When the rotating members 251 of the first rotating mechanism 250 and the second rotating mechanism 250' of the rotating assembly 25 rotate relative to the positioning seat 23 and move away from each other, the driven members 253 of the first rotating mechanism 250 and the driven members 253 of the second rotating mechanism 250' rotate relative to the positioning seat 23. The driven members 253 of the first rotating mechanism 250 and the driven members 253 of the second rotating mechanism 250' slide relative to the linkage member 2570 through the cooperation of the eccentric part and the linkage groove, thereby causing the linkage member 2570 to move relative to the positioning seat 23. The driven members 253 of the first rotating mechanism 250 and the second rotating mechanism 250' rotate synchronously relative to the positioning seat 23 and move away from each other. The end of the driven member 253 away from the positioning seat 23 slides relative to the corresponding rotating member 251, so that the two side supports 271 rotate relative to the rotating members 251 of the first rotating mechanism 250 and the second rotating mechanism 250', respectively. The two side supports 271 slide and rotate relative to the positioning seat 23 and move away from each other, so as to achieve synchronous mutual unfolding of the two side supports 271. When the two side supports 271 are in a flattened state, the front of the two side supports 271 and the front of the middle support 273 are coplanar, so that the flexible screen 30 can fit against the front of the two side supports 271 and the front of the middle support 273.

[0049] In this embodiment, the front side refers to the side facing the same direction as the light-emitting surface of the flexible screen 30, and the back side refers to the side facing away from the light-emitting surface of the flexible screen 30. The electronic device 100 is, for example, but not limited to, mobile phones, tablets, monitors, LCD panels, OLED panels, televisions, smartwatches, VR headsets, automotive displays, and any other products and components with display functions. In the description of this embodiment, "connection" includes both direct and indirect connections. For example, a connection between A and B includes a direct connection between A and B or a connection through a third element C or more other elements. Connections also include integrated connections and non-integrated connections. An integrated connection means that A and B are formed and connected as a single unit, while a non-integrated connection means that A and B are not formed and connected as a single unit.

[0050] In this invention, the rotating assembly 25 of the rotating shaft device 22 is disposed at the end of the positioning seat 23. The first rotating mechanism 250 and the second rotating mechanism 250' of the rotating assembly 25 are respectively disposed on opposite sides of the positioning seat 23. The rotating members 251 of the first rotating mechanism 250 and the second rotating mechanism 250' are rotatably connected to the connecting portion 230 at the end of the positioning seat 23. One end of the driven member 253 of the first rotating mechanism 250 and the second rotating mechanism 250' is rotatably connected to the positioning seat 23, and the other end of the driven member 253 of the first rotating mechanism 250 is slidably connected to the rotating member 251 of the first rotating mechanism 250. The second rotating mechanism... The other end of the driven member 253 of the first rotating mechanism 250' is slidably connected to the rotating member 251 of the second rotating mechanism 250'. The driven member 253 of the first rotating mechanism 250 and the driven member 253 of the second rotating mechanism 250' are connected by a linkage 2570. The linkage 2570 is slidably connected to each driven member 253 through the cooperation of an eccentric part and a linkage groove, so that the driven members 253 of the first rotating mechanism 250 and the driven members 253 of the second rotating mechanism 250' can rotate synchronously relative to the positioning seat 23. The side support member 271 is rotatably connected to the corresponding rotating member 251, and the side support member 271 is movably connected to the positioning seat 23. The rotating part 251 of the first rotating mechanism 250, located away from the positioning seat 23, and the rotating part 251 of the second rotating mechanism 250', located away from the positioning seat 23, are respectively connected to the frame 21. During the process of the two frames 21 folding and moving closer to each other or unfolding and moving away from each other, the first rotating mechanism 250 and the second rotating mechanism 250' on both sides of the positioning seat 23 rotate synchronously relative to the positioning seat 23, so as to drive the side support 271 to move synchronously relative to the positioning seat 23, so that the two side support 271 fold or unfold together, thereby realizing the folding or unfolding of the flexible screen 30.Existing hinge structures generally have a large width and occupy a lot of space, which is not conducive to the miniaturization of foldable screen phones. In this application, the first rotating mechanism 250 and the second rotating component 250' have their rotating component 251 and driven component 253 directly connected to the end of the positioning seat 23, and the side support component 271 is directly connected to the positioning seat 23. This makes the connection between the positioning seat 23, the rotating component 251, the driven component 253 and the side support component 271 compact, and the overall width of the pivot device 22 smaller. This reduces the space occupied by the pivot device 22 in the foldable shell 20, which is not only beneficial for the layout of other components such as the motherboard or battery in the electronic device 100 and promotes miniaturization, but also ensures high reliability of the connection between the components of the pivot device 22, avoiding... When the electronic device 100 is dropped, the components shift and the flexible screen 30 is damaged. Secondly, compared with the existing rotating shaft device, which generally achieves the linkage function through the cooperation of gears, the linkage mechanism 257 in this invention can achieve the synchronous folding or flattening of the driven members 253 of the first rotating mechanism 250 and the driven members 2570 of the second rotating mechanism 250' relative to the positioning seat 23 by sliding cooperation between the eccentric part and the linkage groove. This allows the driven members 253 of the first rotating mechanism 250 and the driven members 253 of the second rotating mechanism 250' relative to the positioning seat 23, so that the rotating members 251 of the first rotating mechanism 250 and the rotating members 251 of the second rotating mechanism 250' relative to the positioning seat 23 can be folded or flattened synchronously, thereby realizing the linkage function of the rotating shaft device 22. Therefore, the linkage mechanism 257 in this application has fewer components, a simpler structure, and lower manufacturing costs. Furthermore, the linkage mechanism 257 is smaller in size, which reduces the width of the rotating shaft device 22, thereby reducing the internal space occupied by the rotating shaft device 22 in the housing 20. This not only facilitates the layout of other components such as the motherboard or battery in the electronic device but also promotes the miniaturization of the electronic device. In addition, the rotation mechanism 250 of the rotating shaft device 22 is located at the end of the positioning seat 23, providing ample space in the middle of the positioning seat 23 for accommodating other components. For example, a heat-conducting element is provided in the middle of the positioning seat 23, with its opposite ends connected to two frames. The heat generated by the motherboard, battery, and other components of the electronic device 100 during operation is conducted to the two frames 21 via this heat-conducting element, which is beneficial for the heat dissipation of the electronic device 100.

[0051] like Figure 5As shown, the frame 21 includes a front face 211, a back face 213, two opposite sides 214, and two end faces 215. A pivot device 22 connects the two adjacent end faces 215 of the two frames 21. The bendable area 31 of the flexible screen 30 is attached to the front face of the pivot device 22, and the non-bendable area 33 of the flexible screen 30 is connected to the front face 211 of the frame 21. Each frame 21 has a mounting groove 216 at one end of its front face 211 near the pivot device 22. The mounting groove 216 passes through the front face 211 of the frame 21, and its opposite ends extend to the opposite sides 214 near the frame 21. The opposite sides of the pivot device 22 are respectively accommodated in the mounting grooves 216 of the two frames 21, and each rotating component 251 is fixedly connected to the corresponding frame 21. The back face 213 of the frame 21 has several receiving spaces (not shown in the figure) for mounting electronic components such as circuit boards and batteries.

[0052] The structure of the first rotating mechanism 250 and the structure of the second rotating mechanism 250' may be the same or different. In this embodiment, the structure of the first rotating mechanism 250 and the structure of the second rotating mechanism 250' are the same. Therefore, the following mainly describes the structure of the first rotating mechanism 250:

[0053] like Figure 6 and Figure 7 As shown, the first rotation axis L1 between the rotating member 251 and the positioning seat 23 is parallel to the second rotation axis L2 between the driven member 253 and the positioning seat 23. The eccentric portion 2536 on each driven member 253 deviates from the corresponding second rotation axis L2. The first rotation axis L1 on the same side of the positioning seat 23 is closer to the center line O of the positioning seat 23 than the second rotation axis L2, and the first rotation axis L1 is closer to the side support member 271 than the second rotation axis L2. The center line O refers to the center line extending along the length direction of the positioning seat 23. Both the first rotation axis L1 and the second rotation axis L2 are located on the positioning seat 23. In this embodiment, both the first rotation axis L1 and the second rotation axis L2 are the axis lines of solid shafts, and both solid shafts are connected to the positioning seat 23. This makes the connection between the rotating member 251 and the driven member 253 and the positioning seat 23 compact, stable, and secure, thereby reducing the width of the first rotation mechanism 250 and the width of the entire rotating shaft device 22. In this embodiment, the positioning seat 23 is symmetrically arranged along the center line O on both sides of the first rotation mechanism 250 and the second rotation mechanism 250'. In other embodiments, the positioning seat 23 may also be staggered on both sides of the first rotation mechanism 250 and the second rotation mechanism 250'.

[0054] Please refer to the following: Figures 7-14The connecting part 230 and the rotating part 251 are rotatably connected by a connecting shaft and a shaft hole. The axis of the connecting shaft is collinear with the corresponding first rotation axis L1. The connecting shaft is located in one of the connecting part 230 and the rotating part 251, and the shaft hole is located in the other of the connecting part 230 and the rotating part 251. In this embodiment, the connecting part 230 is provided with a connecting shaft 2301, and the rotating part 251 is provided with a shaft hole 2511. The connecting shaft 2301 rotatably passes through the shaft hole 2511. Specifically, the two opposite ends of the positioning frame 231 are respectively provided with connecting parts 230. The connecting part 230 is a connecting plate protruding from the end face of the positioning frame 231. The connecting plate is rectangular, and the two opposite ends of the side of each connecting part 230 away from the other connecting part 230 are respectively provided with connecting shafts 2301. Preferably, the connecting shaft 2301 is a shaft cylinder, and the two connecting shafts 2301 on the same connecting part 230 are symmetrically arranged along the center line O. The two opposite ends of the connecting portion 230 are rounded to facilitate the rotation of the rotating member 251. In other embodiments, the two opposite ends of the front of the positioning frame 231 are respectively provided with connecting portions 230, and the two opposite ends of the outer surfaces of the connecting portions 230 are respectively provided with connecting shafts 2301. In other embodiments, the two opposite ends of the connecting portion 230 are respectively provided with shaft holes, the axis of which is collinear with the first rotation axis L1, and the rotating member 251 is provided with a connecting shaft that rotatably passes through the corresponding shaft hole.

[0055] The driven member 253 and the positioning seat 23 are rotatably connected by a rotating shaft and a rotating hole. The axis of the rotating shaft is collinear with the corresponding second rotating axis L2. The rotating shaft is located on one of the driven member 253 and the positioning seat 23, and the rotating hole is located on the other. In this embodiment, the positioning seat 23 has rotating holes 2302 on opposite sides at its end. The axis of the rotating holes 2302 is collinear with the corresponding second rotating axis L2. The driven member 253 has a rotating shaft 2530 that rotatably passes through the rotating holes 2302. Specifically, the positioning frame 231 has rotating holes 2302 on opposite sides near the connecting part 230 at its end. The driven member 253 has a rotating shaft 2530 at one end, which is positioned relative to the driven member 253 and rotatably passes through the rotating holes 2302. In other embodiments, the positioning frame 231 has rotating shafts on opposite sides near the connecting part 230. The axis of the rotating shaft is collinear with the corresponding second rotating axis L2. One end of the follower 253 has a rotating hole, and the rotating shaft rotatably passes through the corresponding rotating hole.

[0056] The positioning frame 231 includes a frame body 233 located in its middle and connecting blocks 235 located at opposite ends of the frame body 233. The rotating member 251 and the driven member 253 of the first rotating mechanism 250 are rotatably connected to the connecting blocks 235, and the side support member 271 is movably connected to the connecting blocks 235. Specifically, the front of the frame body 233 is provided with a receiving groove 2332 along its length. The receiving groove 2332 can be used to receive electronic devices originally installed in the frame body 21, thereby increasing the internal space of the frame body 21 to facilitate the layout of other components. In this embodiment, the connecting block 235 has a connecting portion 230 protruding from the center of its end face away from the frame body 233 in the front direction. Two connecting shafts 2301 are located on the side of the connecting portion 230 away from the frame body 233, and the two connecting shafts 2301 are symmetrical about the center line O of the positioning seat 23. The connecting block 235 has a pair of lugs 2351 spaced apart on opposite sides, and the rotating hole 2302 passes through the pair of lugs 2351. The connecting block 235 also has a clearance groove 2353 on opposite sides, which is used to accommodate one end of the driven member 253. In this embodiment, the connecting block 235 has a clearance groove 2353 between the pair of lugs 2351, and also has clearance grooves 2353 at opposite ends of the pair of lugs 2351. The positioning seat 23 has positioning grooves 2354 at opposite ends on its front side, and a receiving groove 2355 on the bottom surface of the positioning groove 2354. The receiving groove 2355 extends along the length direction perpendicular to the frame 233, and connects to the clearance groove 2353 between the pair of lugs 2351. Specifically, the front of the connecting block 235 has a positioning groove 2354 between the two pairs of lugs 2351, and the bottom surface of the connecting block 2355 has a receiving groove 2355. The two opposite ends of the receiving groove 2355 are respectively connected to the clearance grooves 2353 between the two pairs of lugs 2351. The bottom surface of the connecting block 2355 also has a positioning hole 2356. Preferably, the bottom surface of the positioning groove 2354 has positioning holes 2356 on the opposite sides of the receiving groove 2355.

[0057] A pair of spaced-apart connecting pieces 237 are provided at one end of the connecting block 235 near the frame 233, that is, a pair of parallel connecting pieces 237 are provided at the intersection of the connecting block 235 and the frame 233; each connecting piece 237 is perpendicular to the length direction of the frame 233, and the side support member 271 is connected to the pair of connecting pieces 237. A clearance groove 2371 is formed between the pair of connecting pieces 237. A protrusion 2372 is provided at each opposite end of the pair of connecting pieces 237, and a support shaft 2374 is provided between the two protrusions 2372 on the same side of the connecting block 235, and the axis of the support shaft 2374 is parallel to the first rotation axis L1. The front sides of the connecting block 235 are respectively provided with guide grooves 2357. The guide grooves 2357 extend along the length direction perpendicular to the frame 231. Specifically, the front sides of the connecting block 235 are respectively provided with guide sliders 2358. The guide sliders 2358 are located between the connecting piece 237 and the lug 2351. The front side of each guide slider 2358 is provided with a guide groove 2357.

[0058] The rotating member 251 includes a rotating arm 2510 and a rotating portion 2515 connected to the rotating arm 2510. The end of the rotating arm 2510 away from the rotating portion 2515 is rotatably connected to the connecting portion 230 of the positioning seat 23 via a connecting shaft and a shaft hole. The connecting shaft is located on one of the rotating arm 2510 and the connecting portion 230, and the shaft hole is located on the other. The end of the driven member 253 away from the positioning seat 23 is slidably connected to the rotating portion 2515. In this embodiment, the end of the rotating arm 2510 away from the rotating portion 2515 is provided with a shaft hole 2511, and the axis of the shaft hole 2511 is collinear with the corresponding first rotation axis L1. A rotating plate 2512 protrudes from the end of the rotating arm 2510 away from the rotating portion 2515, and the shaft hole 2511 is located on the side of the rotating plate 2512. In this embodiment, the rotating arm 2510 is a rectangular rod, the rotating part 2515 is connected to the side of one end of the rotating arm 2510, and the rotating plate 2512 is disposed on the side of the rotating arm 2510 opposite to the rotating part 2515. Preferably, the end face of the rotating plate 2512 opposite to the rotating arm 2510 is provided with an arc surface to facilitate the rotation of the rotating component 251 relative to the positioning seat 23.

[0059] In other embodiments, the rotating piece 2512 may also be connected to the side of the rotating arm 2510 away from the rotating part 2515 and close to the rotating part 2515. The shaft hole 2511 is provided on the side of the rotating piece 2512 away from the rotating part 2515. The connecting shaft 2301 protrudes from the side of the connecting part 230 facing the frame 233 and is rotatably inserted into the shaft hole 2511.

[0060] An anti-detachment groove and an anti-detachment rail are provided between the rotating arm 2510 and the connecting part 230. The cooperation between the anti-detachment rail and the anti-detachment groove can prevent the rotating arm 2510 from detaching from the connecting part 230. The anti-detachment groove is provided on one of the connecting part 230 and the rotating arm 2510, and the anti-detachment rail is provided on the other of the connecting part 230 and the rotating arm 2510. In this embodiment, the connecting part 230 is provided with an anti-detachment rail 2304, and the rotating arm 2510 is provided with an anti-detachment groove 2513. The anti-detachment rail 2304 is slidably inserted into the anti-detachment groove 2513 to prevent the anti-detachment rail 2304 from detaching from the anti-detachment groove 2513. Specifically, the connecting part 230 has arc-shaped anti-derailment rails 2304 protruding from its two opposite ends. The axis of the anti-derailment rails 2304 is collinear with the axis of the corresponding connecting shaft 2301. The rotating arm 2510 has an arc-shaped anti-derailment groove 2513 on its end face away from the rotating part 2515. The axis of the anti-derailment groove 2513 is collinear with the axis of the shaft hole 2511. The anti-derailment rails 2304 are rotatably inserted into the anti-derailment groove 2513.

[0061] In some embodiments, the connecting portion 230 is provided with an anti-detachment groove, and the rotating arm 2510 is provided with an anti-detachment rail. The anti-detachment rail is slidably inserted into the anti-detachment groove to prevent the anti-detachment rail from detaching from the anti-detachment groove. Specifically, the connecting portion 230 is provided with arc-shaped anti-detachment rails on opposite end faces, and the axis of the anti-detachment rail is collinear with the axis of the corresponding connecting shaft 2301. The rotating arm 2510 is provided with an arc-shaped anti-detachment rail on the end face away from the rotating portion 2515, and the axis of the anti-detachment rail is collinear with the axis of the shaft hole 2511. The anti-detachment rail is rotatably inserted into the anti-detachment groove.

[0062] The rotating part 2515 is located at the end of the rotating arm 2510 away from the positioning seat 23. The side support 271 covers the rotating part 2515. The side support 271 and the rotating part 251 are rotatably connected by an arc groove and an arc rail. The arc groove is provided on one of the side support 271 and the rotating part 251, and the arc rail is provided on the other. The axis of the arc groove is parallel to the first rotation axis L1. In this embodiment, the side support 271 is a rectangular plate. The side of the side support 271 away from the positioning seat 23 is rotatably connected to the rotating part 251, that is, the side of the side support 271 away from the positioning seat 23 is rotatably connected to the rotating part 251 by an arc groove and an arc rail. Specifically, the rotating part 2515 is a rectangular block, and an arc groove 2516 is provided at the connection between the rectangular block and the rotating arm 2510. The axis of the arc groove 2516 is parallel to the first rotation axis L1. An arc rail 2710 is provided on the side of the side support member 271 away from the positioning seat 23. The arc rail 2710 is rotatably inserted through the arc groove 2516.

[0063] In other embodiments, the rotating part 2515 is provided with an arc groove, the axis of which is parallel to the first rotation axis L1, and the side support 271 is provided with an arc rail, which is rotatably inserted in the arc groove.

[0064] In other embodiments, the rotating arm 2510 is provided with an arc groove, the axis of which is parallel to the first rotation axis L1, and the side support 271 is provided with an arc rail, which is rotatably inserted in the arc groove.

[0065] In other embodiments, an arc track is provided at the connection between the rotating part 2515 and the rotating arm 2510. The axis of the arc track is parallel to the first rotation axis L1. An arc groove is provided on the side support member 271, and the arc track is rotatably inserted through the arc groove.

[0066] In other embodiments, the rotating part 2515 is provided with an arc track, the axis of which is parallel to the first rotation axis L1, and the side support member 271 is provided with an arc groove, in which the arc track is rotatably inserted.

[0067] In other embodiments, the rotating arm 2510 is provided with an arc rail, the axis of which is parallel to the first rotation axis L1, and the side support 271 is provided with an arc groove, in which the arc rail is rotatably inserted.

[0068] A rotating arm 2510 is connected to the end of the rotating part 2515 facing away from the frame 233. The rotating arm 2510 protrudes from the surface of the rotating part 2515 facing the side support member 271. The rotating arm 2510 and the rotating part 2515 form a recess 2517, and the end of the side support member 271 is accommodated in the recess 2517. When the side support member 271 is accommodated in the recess 2517, the end face of the side support member 271 approaches or contacts the corresponding rotating arm 2510. Preferably, the front of the rotating part 2515 is an inclined surface. When the two side supports 271 are in a fully folded state, the back faces of the two side supports 271 are in contact with the front face of the rotating part 2515. The rotating part 2515 has an inclined guide groove 2518 on its front side. The two opposite ends of the guide groove 2518 pass through the opposite sides of the rotating part 2515, dividing the rotating part 2515 into guide strips away from the rotating arm 2510. The driven member 253 and the rotating member 251 are slidably connected by a limiting groove and a limiting shaft. The axis of the limiting shaft is parallel to the first rotation axis L1. The limiting groove is provided in one of the driven member 253 and the rotating member 251, and the limiting shaft is provided in the other of the driven member 253 and the rotating member 251. In this embodiment, the end face of the rotating part 2515 facing away from the rotating arm 2510 is provided with an inclined limiting groove 2519, that is, the limiting groove 2519 is provided on the side of the guide strip facing away from the rotating arm 2510. The limiting groove 2519 is connected to the guide groove 2518. The limiting groove 2519 extends obliquely from the front of the rotating part 2515 to the back near the rotating part 2515. The driven member 253 is provided with a limiting shaft 2531, which slides through the limiting groove 2519.

[0069] Furthermore, the limiting groove 2519 includes a first limiting segment 2519a and a second limiting segment 2519b located at opposite ends. The first limiting segment 2519a is farther away from the positioning seat 23 than the second limiting segment 2519b. When the two side supports 271 are flattened, the limiting shaft 2531 is limited to the first limiting segment 2519a. When the two side supports 271 are fully folded, the limiting shaft 2531 is limited to the second limiting segment 2519b.

[0070] The follower 253 includes a hinge portion 2532 and a sliding portion 2534 located at opposite ends, and a connecting portion 2535 connecting the hinge portion 2532 and the sliding portion 2534. The hinge portion 2532 is rotatably connected to the positioning seat 23 via a rotation shaft 2530, and the sliding portion 2534 is slidably connected to the corresponding rotating member 251 via a limiting shaft 2531. The connecting portion 2535 is a rectangular plate, and the hinge portion 2532 consists of two hinge blocks spaced apart on one side of the rectangular plate. One hinge block is a cylinder with its axis parallel to the first rotation axis L1, and the other hinge block is an oblong column. In this embodiment, the eccentric portion 2536 is an eccentric shaft. The eccentric shaft is provided on the end face of the cylinder away from the waist-shaped column. The axis of the eccentric portion 2536 is parallel to the second rotation axis L2 at intervals; that is, the eccentric portion 2536 is parallel to the second rotation axis L2 and parallel to the axis of the cylinder at intervals. A pushing portion 2537 is provided on the outer peripheral wall of the waist-shaped column. Preferably, the pushing portion 2537 is a protrusion provided on the driven member 253, and the protrusion is located on the outer peripheral wall of the waist-shaped column away from the sliding portion 2534. The hinge portion 2532 is provided with a first connecting hole 2538 along the axis of the cylinder. The rotation shaft 2530 passes through the connecting hole 2536, and the axis of the eccentric portion 2536 is parallel to the axis of the first connecting hole 2538 at intervals. The sliding part 2534 consists of two sliding blocks spaced apart on the opposite side of the rectangular plate. The sliding part 2534 has a second connecting hole 2539 along a direction parallel to the first rotation axis L1, and the limiting shaft 2531 passes through the second connecting hole 2539.

[0071] In other embodiments, the eccentric portion 2536 may be, but is not limited to, an elliptical cylinder, a sphere, or a hemisphere.

[0072] Please refer to the following: Figures 6-10One driven member 253 rotates relative to the positioning seat 23, causing the other driven member 253 to rotate synchronously relative to the positioning seat 23 via a linkage mechanism 257. Specifically, the linkage member 2570 has linkage grooves 2571 at opposite ends, extending along a direction perpendicular to the second rotation axis L2. The eccentric portions 2536 on the two driven members 253 are slidably inserted into the two linkage grooves 2571 of the linkage member 2570, and the two linkage grooves 2571 are symmetrically arranged around the center of the linkage member 2570. When one driven member 253 rotates relative to the positioning seat 23, the eccentric portion 2536 on one driven member 253 moves in the corresponding linkage groove 2571, thereby driving the linkage member 2570 to move along a direction perpendicular to the first rotation axis L1, causing the eccentric portion 2536 on the other driven member 253 to move synchronously in the corresponding linkage groove 2571, thus achieving synchronous rotation of the other driven member 253 relative to the positioning seat 23. In this embodiment, the linkage 2570 includes a linkage plate 2572 perpendicular to the second rotation axis L2, and linkage grooves 2571 are respectively provided at opposite ends of the linkage plate 2572 along its length direction; specifically, the linkage plate 2572 is a rectangular plate, and linkage grooves 2571 are respectively provided at opposite ends of the rectangular plate, with the linkage grooves 2571 extending along the length direction of the rectangular plate. Preferably, the opposite end faces of the linkage plate 2572 are provided with arc surfaces to facilitate the folding or flattening of the rotating shaft device 22.

[0073] Furthermore, the linkage groove 2571 includes a first stop section 2571a and a second stop section 2571b located at opposite ends therein. The first stop section 2571a is farther away from the first rotation axis L1 than the second stop section 2571b. That is, the first stop section 2571a of the same linkage groove 2571 is farther away from the center line O of the positioning seat 23 than the second stop section 2571b. When the two side support members 271 are in a flattened state, the driven member 253 of the first rotation mechanism 250 and the driven member 253 of the second rotation member 250' are in a flattened state, and the eccentric portion 2536 is limited to the first stop section 2571a. When the two side support members 271 are in a fully folded state, the driven member 253 of the first rotation mechanism 250 and the driven member 253 of the second rotation member 250' are in a fully folded state, and the eccentric portion 2536 is limited to the second stop section 2571b. Preferably, the linkage groove 2571 is waist-shaped and passes through the two opposite sides of the linkage plate 2572.

[0074] The linkage mechanism 257 in this invention achieves the synchronous folding or flattening of the two driven members 253 through the cooperation of the linkage groove 2571 of the linkage member 2570 and the eccentric portion 2536 provided on the driven member 253, thereby realizing the linkage function of the rotating shaft device 22. Therefore, the linkage mechanism 257 in this application has fewer components, a simpler structure, and lower manufacturing cost.

[0075] In this embodiment, the eccentric portion 2536 is located on the side of the hinge portion 2532 away from the sliding portion 2534. The diameter of the eccentric portion 2536 is equal to or slightly smaller than the width of the linkage groove 2571. During the rotation of the hinge portion 2532 relative to the positioning seat 23, the eccentric portion 2536 slides along the linkage groove 2571 and abuts against the inner side of the linkage groove 2571, causing the linkage member 2570 to move in a direction perpendicular to the center line O of the positioning seat 23. In other embodiments, the eccentric portion 2536 may also be located on the side of the hinge portion 2532 closer to the sliding portion 2534.

[0076] Preferably, the linkage 2570 and the positioning seat 23 are slidably connected by a guide groove 2357 and a guide rail 2574. The guide groove 2357 extends along the moving direction of the linkage 2570, that is, it extends along a direction perpendicular to the center line O of the positioning seat 23. The guide groove 2357 is provided on one of the linkage 2570 and the positioning seat 23, and the guide rail 2574 is provided on the other. In this embodiment, the guide groove 2357 is formed on the positioning seat 23, and the guide rail 2574 is provided on the linkage 2570. Specifically, guide rails 2574 are provided at opposite ends on one side of the linkage plate 2572. The guide rails 2574 extend along a length direction perpendicular to the linkage plate 2572, and the two guide rails 2574 are respectively close to the two linkage grooves 2571, that is, the two guide rails 2574 are located between the two linkage grooves 2571.

[0077] In other embodiments, two guide rails 2574 may be respectively provided on opposite sides of the linkage plate 2572, and the front of the positioning seat 23 is provided with guide grooves 2357 corresponding to the two guide rails 2574.

[0078] In other embodiments, the linkage plate 2572 may also have only one guide rail 2574, and the front of the positioning seat 23 is provided with a guide groove 2357 corresponding to the guide rail 2574.

[0079] In other embodiments, the linkage plate 2572 is provided with a guide groove along its length direction, and the positioning seat 23 is provided with a guide rail corresponding to the guide groove, the guide rail being slidably inserted into the guide groove.

[0080] The central support member 273 is connected to the linkage member 2570. The central support member 273 moves with the linkage member 2570, that is, the linkage member 2570 drives the central support member 273 to move along the guide groove 2357, so that the central support member 273 moves closer to or further away from the positioning seat 23. Specifically, the central support member 273 is a rectangular plate, and the two opposite ends of the back of the central support member 273 are respectively provided with linkage members 2570. When the two side supports 271 are in a flattened state, the front of the central support member 273 is coplanar with the front of the two side supports 271; when the two side supports 271 are in a fully folded state, the front of the central support member 273 and the front of the two side supports 271 form a teardrop-shaped space. Preferably, the two opposite sides of the central support member 273 are respectively provided with clearance grooves 2576 near the ends, and the clearance grooves 2576 are used to avoid the abutment member 2581.

[0081] Please refer to the following: Figure 6 and Figures 11-14 The rotating assembly 25 also includes a torque mechanism 258, which is disposed between two driven members 253. The torque mechanism 258 includes a pushing part 2537 disposed on at least one driven member 253, a pushing member 2581 slidably connected to the positioning seat 23, and an elastic member 2587. The elastic member 2587 pushes the pushing member 2581 and the pushing part 2537 against each other. When the driven member 253 rotates relative to the positioning seat 23, the frictional resistance between the pushing part 2537 and the pushing member 2581 positions the driven member 253 relative to the positioning seat 23. Specifically, the pushing member 2581 is slidably accommodated in the receiving groove 2355 of the positioning seat 23, and the elastic member 2587 is accommodated in the receiving groove 2355 of the positioning seat 23. The elastic member 2587 elastically pushes the pushing member 2581 and the pushing part 2537 against each other. Preferably, the elastic element 2587 is a spring with pre-tension. In other embodiments, the elastic element 2587 may be, but is not limited to, elastic plastic or elastic rubber.

[0082] In this embodiment, the torque mechanism 258 includes two abutting members 2581 spaced apart from each other. The two abutting members 2581 are located between the two driven members 253 of the rotating assembly 25. The elastic member 2587 is held by the two abutting members 2581, that is, the two opposite ends of the elastic member 2587 elastically push against the two abutting members 2581, so that the two abutting members 2581 abut against the two pushing portions 2537 respectively. Specifically, the two abutting members 2581 are respectively housed in the receiving groove 2355 at opposite ends, and the abutting members 2581 can slide along the receiving groove 2355. The elastic member 2587 is housed in the receiving groove 2355, and the two opposite ends of the elastic member 2587 abut against the two abutting members 2581, so that the two abutting members 2581 abut against the pushing portions 2537 of the two driven members 253 respectively. When the two driven members 253 rotate synchronously relative to the positioning seat 23, the frictional resistance between the two pushing parts 2537 and the two abutting parts 2581 respectively causes the two driven members 253 to be synchronously limited relative to the positioning seat 23.

[0083] The abutment member 2581 includes a first abutment top 2582 and a second abutment top 2583 facing the abutment portion 2537. The first abutment top 2582 is closer to the side support member 271 than the second abutment top 2583. When the two side support members 271 are in a flattened state, the abutment portion 2537 is positioned at the first abutment top 2582 to position the driven member 253 relative to the positioning seat 23, thus keeping the two side support members 271 in a flattened state. When the two side support members 271 are in a fully folded state, the abutment portion 2537 is positioned at the second abutment top 2583 to position the driven member 253 relative to the positioning seat 23, thus keeping the two side support members 271 in a folded state. Positioning refers to the driven member 253 being stationary relative to the positioning seat 23 when no external force is applied. Specifically, the abutting member 2581 includes an abutting plate, a first abutting top 2582 and a second abutting top 2583 are disposed on the side of the abutting plate facing the pushing part 2537, and the elastic member 2587 abuts against the two abutting plates on the side away from the pushing part 2537 at opposite ends.

[0084] In this embodiment, the first abutment 2582 is a first positioning groove provided on the abutment member 2581, and the second abutment 2583 is a second positioning groove provided on the abutment member 2581. The pushing part 2537 can be positioned in the first positioning groove or the second positioning groove, that is, the protrusion on the driven member 253 can be positioned in the first positioning groove or the second positioning groove. When the pushing part 2537 is positioned in the first positioning groove, the two driven members 253 remain in a flattened state, so that the two side support members 271 remain in a flattened state; when the pushing part 2537 is positioned in the second positioning groove, the two driven members 253 remain in a fully folded state, so that the two side support members 271 remain in a fully folded state.

[0085] In other embodiments, the pushing portion 2537 is a groove provided on the driven member 253, the first abutting top 2582 is a first protrusion provided on the abutting member 2581, and the second abutting top 2583 is a second protrusion provided on the abutting member 2581. The first protrusion and the second protrusion can be respectively positioned in the groove. When the first protrusion is positioned in the groove, the two driven members 253 remain in a flattened state, so that the two side support members 271 remain in a flattened state; when the second protrusion is positioned in the second positioning groove, the two driven members 253 remain in a fully folded state, so that the two side support members 271 remain in a fully folded state.

[0086] Preferably, the abutment member 2581 further includes an intermediate abutment member 2584 disposed between the first abutment member 2582 and the second abutment member 2583. During the rotation of the driven member 253 relative to the positioning seat 23, the pushing part 2537 slides against the intermediate abutment member 2584. The frictional resistance between the pushing part 2537 and the intermediate abutment member 2584 positions the driven member 253 relative to the positioning seat 23, thereby giving the two side support members 271 a hovering effect relative to the positioning seat 23, and thus giving the two frames 21 a hovering function. Specifically, the intermediate abutment member 2584 is disposed on the side of the abutment plate facing the pushing part 2537 and is located between the first abutment member 2582 and the second abutment member 2583.

[0087] The middle abutment top 2584 and the pushing part 2537 are slidably connected by an abutment groove and a protrusion. The abutment groove is provided on one of the abutment member 2581 and the driven member 253, and the protrusion is provided on the other of the abutment member 2581 and the driven member 253. In this embodiment, the abutment groove is provided on the abutment member 2581, and the pushing part 2537 is a protrusion that can slide in the abutment groove. The frictional resistance between the protrusion and the inner surface of the abutment groove positions the driven member 253 relative to the positioning seat 23. That is, when the driven member 253 is not subjected to external force, the frictional resistance between the pushing part 2537 and the middle abutment top 2584 positions the driven member 253 relative to the positioning seat 23 at any angle, so that the two side support members 271 have a hovering effect, thereby giving the two frames 21 a hovering function.

[0088] In other embodiments, the pushing part 2537 is an abutting groove provided on the driven member 253, that is, the outer peripheral wall of the hinge part 2532 is provided with an abutting groove, and the middle abutting top 2584 is a protrusion provided on the abutting member 2581. The protrusion can slide along the abutting groove. The frictional resistance between the protrusion and the inner surface of the abutting groove positions the driven member 253 relative to the abutting member 2581 and positions the driven member 2563 relative to the positioning seat 23. That is, when the driven member 253 is not subjected to external force, the frictional resistance between the protrusion and the abutting groove positions the driven member 253 relative to the positioning seat 23 at any angle, so that the two side support members 271 have a hovering effect, thereby giving the two frames 21 a hovering function.

[0089] Preferably, the included angle between the driven member 253 and the positioning seat 23 is greater than or equal to 0 degrees and less than or equal to 90 degrees. That is, the included angle between the driven member 253 and the positioning seat 23 can be, but is not limited to, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 70 degrees, or 80 degrees. The positioning of the driven member 253 relative to the positioning seat 23 enables the included angle between the two frames 21 and the positioning seat 23 to be greater than or equal to 0 degrees and less than or equal to 180 degrees. Specifically, when the included angle between the two frames 21 is 0 degrees, the electronic device 100 is in a fully folded state; when the included angle between the two frames 21 is 180 degrees, the electronic device 100 is in a flattened state; the two frames 21 can also be positioned relative to each other at any angle between 0 degrees and less than 180 degrees, that is, the hovering angle of the electronic device 100 is between 0 degrees and less than 180 degrees.

[0090] The torque mechanism 258 of the rotating shaft device 22 of this application includes a stop member 2581 and an elastic member 2587 disposed on the positioning seat 23, and a push part 2537 on the driven member 253. The frictional resistance between the push part 2537 and the stop member 2581 enables the two side support members 271 of the rotating shaft device 22 to be positioned relative to the positioning seat 23, thereby realizing the hovering function of the electronic device 100. Moreover, the torque mechanism 258 has a simple and compact structure, occupies less space in the rotating shaft device 22, thereby reducing the width of the rotating shaft device 22 and reducing the space occupied by the housing 20.

[0091] The abutment member 2581 further includes a positioning post 2585 disposed on the side of the abutment plate opposite to the first abutment top 2582, and the end of the elastic member 2587 is sleeved on the positioning post 2585 to position the elastic member 2587. The abutment member 2581 also includes guide plates 2586 disposed on opposite sides of the abutment plate, the guide plates 2586 extending along the axial direction of the positioning post 2585, that is, the guide plates 2586 and the positioning post 2585 are located on the same side of the abutment plate, and the two guide plates 2586 are used to slidably contact the opposite sides of the receiving groove 2355 respectively. Further, the guide plates 2586 are provided with a guide flange on the side near the first abutment top 2582, and the guide flange slides along the surface of the positioning groove 2354 when the abutment member 2581 slides along the receiving groove 2355. Preferably, when the end of the elastic member 2587 is sleeved on the positioning post 2585, the two guide plates 2586 clamp the elastic member 2587.

[0092] The torque mechanism 258 also includes a mounting member 2588, which covers the abutment member 2581 and the elastic member 2587. The mounting member 2588 is connected to the positioning seat 23 so that the abutment member 2581 and the elastic member 2587 are installed in the positioning seat 23. Specifically, the mounting member 2588 is a plate body accommodated in the positioning groove 2354 of the positioning seat 23. The shape of the plate body is the same as the shape of the positioning groove 2354. In this embodiment, the positioning groove 2354 is a rectangular groove, and the mounting member 2588 is a rectangular plate positioned in the rectangular groove. The mounting member 2588 is provided with a through hole 2589 corresponding to the positioning hole 2356. A locking fastener, such as a screw, passes through the through hole 2589 and locks into the positioning hole 2356 so that the mounting member 2588 is connected to the positioning seat 23.

[0093] like Figures 6-10The side support member 271 includes a rectangular support plate 2711. Arc rails 2710 are provided at opposite ends of the back side of the support plate 2711, away from the positioning seat 23. Two spaced-apart support arms 2712 are provided on the back side of the support plate 2711, near the positioning seat 23. The two support arms 2712 are respectively located near opposite ends of the support plate 2711 and are movably inserted into the clearance grooves 2371 at opposite ends of the positioning seat 23. The support arms 2712 are arc-shaped strips extending from the support plate away from the arc rails 2710. The support arm 2712 is provided with a limiting groove 2714 along its extension direction. The limiting groove 2712 is an arc-shaped groove, and the middle part of the limiting groove 2712 bends away from the support plate 2711. Further, the limiting groove 2712 includes a first limiting segment 2714a and a second limiting segment 2714b at its opposite ends. The first limiting segment 2714a is closer to the support plate 2711 than the second limiting segment 2714b. When the two side support members 271 are in a flattened state, the support shaft 2374 on the positioning seat 23 is limited to the first limiting segment 2714a; when the two side support members 271 are in a fully folded state, the support shaft 2374 is limited to the second limiting segment 2714b. Preferably, the end of the support arm 2712 away from the support plate 2711 is provided with a clearance opening 2715. The clearance openings 2715 on the two support arms 2712 at the same end of the positioning seat 23 are in opposite positions, that is, the first side of one support arm 2712 is provided with a clearance opening 2715, and the second side of the other support arm 2712 is provided with a clearance opening 2715, with the first side and the second side facing opposite directions. When the two side supports 271 are in a flattened state, the ends of the two support arms 2712 at the same end of the positioning seat 23 away from the support plate 2711 cooperate with each other, that is, the end of one support arm 2712 is accommodated in the clearance opening 2715 of the other support arm 2712, thereby reducing the space occupied by the support arm 2712 in the length direction of the positioning seat 23, making the connection between the components of the rotating shaft device 22 more compact, and increasing the space of the receiving groove 2332 of the positioning seat 23 to accommodate more of its electronic components. The support plate 2711 has a support arm 2712 on one side, and the two opposite ends near the corresponding support arm 2712 are provided with a clearance groove 2716. The clearance groove 2716 is used to avoid the rotating part 251 and the driven part 253.

[0094] like Figure 7 and Figure 8As shown, the rotating shaft device 22 also includes a back cover 28, and the back of the positioning seat 23 is accommodated in the back cover 28. Specifically, the back cover 28 is a strip frame with a receiving groove 280, in which the positioning seat 23 is accommodated and fixedly connected to the back cover 28. Preferably, the back cover 28 has an adhesive layer on the inner surface of the receiving groove 280, and the positioning seat 23 is connected to the positioning seat 23 through this adhesive layer. The connection between the positioning seat 23 and the back cover 28 can also be achieved by, but is not limited to, screwing or snap-fitting.

[0095] Please refer to the following: Figures 6-13When assembling the rotating shaft device 22, the two opposite ends of the elastic element 2587 are respectively sleeved onto the positioning posts 2585 of the two abutment elements 2581, so that the two guide plates 2586 of the abutment elements 2581 clamp the elastic element 2587; the two abutment elements 2581 and the elastic element 2587 are housed in the receiving groove 2355 of the positioning seat 23, so that the side of the abutment element 2581 away from the elastic element 2587 faces the corresponding clearance groove 2353, that is, the first abutment top 2582, the second abutment top 2583 and the middle abutment top 2584 face the corresponding receiving groove 2355, and the elastic element 2587 is elastically compressed and has a pre-elastic force; the connecting shaft 2301 at the end of the positioning seat 23 is inserted into the corresponding rotating element 251. In the shaft hole 2511, two rotating parts 251 are rotatably connected to opposite ends of the positioning seat 23, and the anti-derailment 2304 is rotatably inserted into the corresponding anti-derailment groove 2513 to prevent the connecting shaft 2301 from disengaging from the shaft hole 2511 during the rotation of the rotating parts 251 relative to the positioning seat 23. The hinge portion 2532 of the driven part 253 is rotatably connected to the positioning seat 23. Specifically, the hinge portion 2532 is inserted into the corresponding clearance groove 2353 on the positioning seat 23, so that the first connecting hole 2538 of the hinge portion 2532 is aligned with the rotating hole 2302 of the positioning seat 23. The rotating shaft 2530 passes through the rotating hole 2302 and the first connecting hole 2538, allowing the driven part 253 to rotate. The actuator 253 is movably connected to the positioning seat 23; the sliding part 2534 of the follower 253 is housed in the guide groove 2518 of the rotating part 251, so that the second connecting hole 2539 is aligned with the limiting groove 2519 of the rotating part 251, and the limiting shaft 2531 is inserted into the second connecting hole 2539 and the limiting groove 2519; the mounting part 2588 is snapped into the receiving groove 2355 of the positioning seat 23, and the locking fastener passes through the through hole 2589 of the mounting part 2588 and is locked in the corresponding positioning hole 2356, so that the torque mechanism 258 is installed on the positioning seat 23; the middle support 273 is placed on the positioning seat 23, so that the guide rails 2574 at opposite ends of the middle support 273 are respectively inserted into the corresponding guide grooves 2357. The eccentric portion 2536 of each follower 253 is inserted into the corresponding linkage groove 2571; the two side supports 271 are placed on the rotating members 251 on opposite sides of the positioning seat 23, so that the arc rails 2710 at opposite ends of the side supports 271 are rotatably inserted into the arc rails 2516 of the two rotating members 251, and the two support arms 2712 of the side supports 271 are inserted into the two clearance grooves 2371 of the positioning seat 23, so that each support shaft 2374 is inserted into the corresponding limiting groove 2714. At this time, the support shaft 2374 can slide and rotate through the corresponding limiting groove 2714, and the end of the side support 2714 is accommodated in the clearance groove 2517.

[0096] The back of the positioning seat 23 is housed in the receiving groove 280 of the back cover 28, and the positioning seat 23 is connected to the back cover 28. When the two side supports 271 are in a flattened state, the limiting shaft 2531 is limited to the corresponding first limiting section 2519a, the pushing part 2537 is limited to the corresponding first abutting top 2582, the support shaft 2374 is limited to the corresponding first limiting section 2714a, and the eccentric part 2536 is located in the corresponding first stop section 2571a, so that the rotating shaft device 22 is kept in a flattened state, that is, the front of the two side supports 271 is coplanar with the front of the middle support 273, and the distance between the front of the middle support 273 and the front of the positioning seat 23 is the largest. When the two side supports 271 are fully folded, the limiting shaft 2531 is limited to the corresponding second limiting section 2519b, the pushing part 2537 is positioned at the corresponding second abutment top 2583, the support shaft 2374 is limited to the corresponding second limiting section 2714b, and the eccentric part 2536 is located at the corresponding second stop section 2571b, so that the rotating shaft device 22 is kept in a folded state, that is, the front of the two side supports 271 and the front of the middle support 273 form a teardrop-shaped space, and the distance between the front of the middle support 273 and the front of the positioning seat 23 is minimized.

[0097] When the rotating members 251 on opposite sides of the positioning seat 23 rotate relative to the positioning seat 23 and move closer or further apart, the rotating members 251 drive the corresponding driven members 253 to rotate relative to the positioning seat 23 and move closer or further apart. The driven members 253 and the rotating members 251 slide relative to each other, the rotating members 251 and the corresponding side support members 271 rotate relative to each other, and the support shaft 2374 moves in the corresponding limiting groove 2714 so that the two side support members 271 fold or unfold relative to each other. Specifically, the rotating member 251 rotates relative to the positioning seat 23 via the connecting shaft 2301 and the corresponding shaft hole 2511. The driven member 253 rotates relative to the positioning seat 23 around the corresponding rotating shaft 2530, and the limiting shaft 2531 of the driven member 253 away from the positioning seat 23 slides in the corresponding limiting groove 2519. The pushing part 2537 of the driven member 253 slides against the abutting member 2581 so that the pushing part 2537 moves between the first abutting top 2582, the intermediate abutting top 2584 and the second abutting top 2583. Simultaneously, the eccentric portion 2536 of the driven member 253 slides in the corresponding linkage groove 2571, thereby driving the linkage member 2570 to slide along the guide groove 2357 to realize the linkage of the rotating shaft device 22, and causing the middle support member 273 to move closer to or further away from the positioning seat 23. The side support member 271 and the rotating member 251 rotate through the cooperation of the arc rail 2710 and the guide rail 2574, and the support shaft 2374 rotates and slides in the corresponding limiting groove 2714 to realize the synchronous folding or synchronous unfolding of the two side support members 271.

[0098] like Figures 6-23 , Figures 25-30 and Figures 32-37 When the rotating shaft device 22 is bent from its flattened state, one of the rotating parts 251 rotates around the corresponding connecting shaft 2301 relative to the positioning seat 23 towards the other rotating part 251. The anti-derailment 2304 moves in the corresponding anti-derailment groove 2513. One of the rotating parts 251 drives the corresponding driven part 253 to rotate around the corresponding rotating shaft 2530 relative to the positioning seat 23, and the limiting shaft 2531 of the driven part 253 slides in the corresponding limiting groove 2519, so that the driven part 253 moves towards the other rotating part 251. Another driven member 253 moves closer; the rotation of this driven member 253 relative to the positioning seat 23 drives the eccentric part 2536 to move in the corresponding linkage groove 2571, causing the linkage member 2570 to slide along the corresponding guide groove 2357 towards the positioning seat 23. The linkage member 2570 drives the eccentric part 2536 of the other driven member 253 to move in the corresponding linkage groove 2571, causing the other driven member 253 to rotate synchronously relative to the positioning seat 23 around the corresponding rotation axis 2530, thereby realizing the two driven members moving in tandem. Part 253 rotates synchronously relative to the positioning seat 23 and moves closer to each other; another driven part 253 drives the corresponding rotating part 251 to rotate around the corresponding connecting shaft 2301, so as to realize that the two rotating parts 251 rotate synchronously relative to the positioning seat 23 and move closer to each other; at the same time, during the rotation of the rotating part 251 relative to the positioning seat 23, the rotating part 251 and the corresponding side support part 271 rotate through the cooperation between the arc rail 2710 and the arc groove 2516, and the support shaft 2 on the positioning seat 23 rotates. 374 slides and rotates in the limiting groove 2714 of the corresponding support arm 2712, that is, the support shaft 2374 slides and rotates from the first limiting section 2714a of the limiting groove 2714 to the second limiting section 2714b, so that the side support members 271 on both sides of the positioning seat 23 move closer to each other until the support shaft 2374 is limited to the second limiting section 2714b of the limiting groove 2714, and the front of the two side support members 271 and the front of the middle support member 273 form a teardrop shape in cross section.

[0099] During the bending process of the side support member 271 relative to the positioning seat 23, the arc rail 2710 rotates in the corresponding arc groove 2516. At the same time, the limiting shaft 2531 slides and rotates in the corresponding limiting groove 2519, causing the limiting shaft 2531 to move from the first limiting segment 2519a to the second limiting segment 2519b of the limiting groove 2519. Simultaneously, the eccentric part 2536 slides in the corresponding linkage groove 2571, causing the eccentric part 2536 to move from the first stop segment 2571a to the second stop segment 2571b of the linkage groove 2571, thereby driving the linkage member 2570 to move closer to the positioning seat 23 along the guide slide groove 2357, that is, the guide slide rail 2574 moves closer to the positioning seat 23 along the corresponding guide slide groove 2357. At the same time, the pushing part 2537 pushes the abutting member 2581 to disengage from the first abutting top 2582. After the push is pushed, the push part 2537 slides against the middle push top 2584. The elastic member 2587 is squeezed by the push member 2581 and undergoes elastic deformation until the push part 2537 passes the middle push top 2584 and is positioned at the second push top 2583. The frictional resistance between the push part 2537 and the middle push top 2584 causes the driven member 253 to be positioned at any angle between 0 and 90 degrees relative to the positioning seat 23. At the same time, the support shaft 2374 slides and rotates from the first limiting section 2714a of the limiting groove 2714 to the second limiting section 2714b, so that the rotating members 251 on both sides of the positioning seat 23 move closer to each other and the driven members 253 on both sides of the positioning seat 23 move closer to each other, so that the front of the two side support members 271 and the front of the positioning seat 23 form a teardrop-shaped space. The angle formed by the synchronous rotation of the driven members 253 on both sides of the positioning seat 23 relative to the positioning seat 23 is directly proportional to the amount of movement of the linkage member 2570 relative to the positioning seat 23. Specifically, the larger the included angle between the two driven members 253, the greater the amount of movement of the linkage member 2570 relative to the positioning seat 23; the smaller the included angle between the two driven members 253, the smaller the amount of movement of the linkage member 2570 relative to the positioning seat 23. When the two side support members 271 are in a flattened state, the included angle between the two driven members 253 is the largest, which is 180 degrees, and the distance between the linkage member 2570 and the positioning seat 23 is the largest. When the two side support members 271 are in a completely folded state, the included angle between the two driven members 253 is the smallest, which is 0 degrees, and the distance between the linkage member 2570 and the positioning seat 23 is the smallest.

[0100] In other bending methods, the two rotating parts 251 can rotate together relative to the positioning seat 23 around their respective connecting shafts 2301 in opposite directions. Each of the two rotating parts 251 drives its corresponding driven part 253 to rotate relative to the positioning seat 23 around its corresponding rotating shaft 2530, causing them to move closer together. Simultaneously, the limiting shaft 2531 at the end of the driven part 253 away from the positioning seat 23 slides in its corresponding limiting groove 2519, i.e., the limiting shaft 2531 moves from the first limiting segment 2519a to the second limiting segment 2519b. The rotation of component 253 relative to positioning seat 23 causes eccentric part 2536 to move in the corresponding linkage groove 2571, that is, eccentric part 2536 is displaced from the first stop section 2571a to the second stop section 2571b of linkage groove 2571, so that linkage component 2570 slides along the corresponding guide groove 2357 toward positioning seat 23; after the pushing part 2537 pushes the abutting part 2581 away from the abutting part 2582, the pushing part 2537 slides against the intermediate abutting part 2584, and the elastic component 2587 is pushed. The member 2581 undergoes elastic deformation due to compression until the pushing part 2537 passes the intermediate abutment 2584 and is positioned at the second abutment 2583. The frictional resistance between the pushing part 2537 and the intermediate abutment 2584 causes the driven member 253 to be positioned relative to the positioning seat 23 at any angle between 0 and 90 degrees; that is, the included angle between the two driven members 253 is between 0 and 180 degrees. The rotating member 251 and the corresponding side support member 271 rotate through the cooperation between the arc rail 2710 and the arc groove 2516. The support shaft 2374 on the positioning seat 23 slides and rotates in the limiting groove 2714 of the corresponding support arm 2712. That is, the support shaft 2374 slides and rotates from the first limiting section 2714a of the limiting groove 2714 to the second limiting section 2714b, so that the side support members 271 on both sides of the positioning seat 23 move closer to each other until the support shaft 2374 is limited to the second limiting section 2714b of the limiting groove 2714. The front of the two side support members 271 and the front of the middle support member 273 form a teardrop shape in cross section.

[0101] When the rotating shaft device 22 is flattened from its bent state, one of the rotating members 251 is unfolded relative to the positioning seat 23 away from the other rotating member 251 around the corresponding connecting shaft 2301. The anti-derailment 2304 moves in the corresponding anti-derailment groove 2513. One of the rotating members 251 drives the driven member 253 to rotate relative to the positioning seat 23 around the corresponding rotating shaft 2530, and the limiting shaft 2531 of the driven member 253 slides in the corresponding limiting groove 2519, so that the driven member 253 moves away from the positioning seat 23. Another driven member 253; the rotation of this driven member 253 relative to the positioning seat 23 drives the eccentric part 2536 to move in the corresponding linkage groove 2571, so that the linkage member 2570 slides away from the positioning seat 23 along the corresponding guide groove 2357. The linkage member 2570 drives the eccentric part 2536 of the other driven member 253 to move in the corresponding linkage groove 2571, so that the other driven member 253 rotates synchronously relative to the positioning seat 23 around the corresponding rotation axis 2530, thereby realizing that the two driven members 253 rotate synchronously relative to the positioning seat 23 and move away from each other; the other driven member 253 drives the corresponding rotating member 251 to rotate around the corresponding connecting shaft 2301, so as to realize that the two rotating members 251 rotate synchronously relative to the positioning seat 23 and move away from each other; at the same time, during the rotation of the rotating member 251 relative to the positioning seat 23, the rotating member 251 and the corresponding side support member 271 rotate through the cooperation between the arc rail 2710 and the arc groove 2516, and the support shaft 2 on the positioning seat 23 rotates. 374 slides and rotates in the limiting groove 2714 of the corresponding support arm 2712, that is, the support shaft 2374 slides and rotates from the second limiting section 2714b of the limiting groove 2714 to the first limiting section 2714a, so that the side support members 271 on both sides of the positioning seat 23 move away from each other until the support shaft 2374 is limited to the first limiting section 2714a of the limiting groove 2714, and the front of the two side support members 271 and the front of the middle support member 273 form a teardrop shape in cross section.

[0102] During the flattening process of the side support 271 relative to the positioning seat 23, the arc rail 2710 rotates in the corresponding arc groove 2516. Simultaneously, the limiting shaft 2531 slides and rotates in the corresponding limiting groove 2519, causing the limiting shaft 2531 to move from the second limiting segment 2519b to the first limiting segment 2519a. Simultaneously, the eccentric part 2536 slides in the corresponding linkage groove 2571, causing the eccentric part 2536 to move from the second stop segment 2571b to the first stop segment 2571a, thereby driving the linkage member 2570 to move away from the positioning seat 23 along the guide groove 2357. That is, the guide rail 2574 moves away from the positioning seat 23 along the corresponding guide groove 2357. Simultaneously, the pushing part 2537 pushes the abutting member 2581 away from the second abutting top 2583. Subsequently, the pushing part 2537 slides against the middle abutment top 2584, and the elastic member 2587 is squeezed by the abutment member 2581 and undergoes elastic deformation until the pushing part 2537 passes the middle abutment top 2584 and is positioned at the first abutment top 2582. The frictional resistance between the pushing part 2537 and the middle abutment top 2584 causes the driven member 253 to be positioned relative to the positioning seat 23 at any angle between 0 degrees and 90 degrees. At the same time, the support shaft 2374 slides and rotates from the second limiting section 2714b of the limiting groove 2714 to the first limiting section 2714a, so that the rotating members 251 on both sides of the positioning seat 23 move away from each other and the driven members 253 on both sides of the positioning seat 23 move away from each other, so that the two side support members 271 are smoothly flattened until the front of the two side support members 271 is coplanar with the front of the positioning seat 23. The larger the angle between the two driven members 253, the greater the movement of the linkage member 2570 relative to the positioning seat 23; when the two side support members 271 are in a flattened state, the angle between the two driven members 253 is the largest, which is 180 degrees, and the distance between the linkage member 2570 and the positioning seat 23 is the largest.

[0103] In other usage scenarios, the two rotating members 251 can rotate together around their respective connecting shafts 2301 relative to the positioning seat 23 in a direction away from each other. Each rotating member 251 drives its corresponding driven member 253 to rotate around its corresponding rotating shaft 2530 relative to the positioning seat 23, moving them away from each other. Simultaneously, the limiting shaft 2531 at the end of the driven member 253 away from the positioning seat 23 slides in its corresponding limiting groove 2519, meaning the limiting shaft 2531 is displaced from the second limiting segment 2519b to the first limiting segment 2519b. Position segment 2519a; the rotation of the follower 253 relative to the positioning seat 23 causes the eccentric part 2536 to move in the corresponding linkage groove 2571, that is, the eccentric part 2536 is displaced from the second stop segment 2571b to the first stop segment 2571a in the linkage groove 2571, so that the linkage member 2570 slides away from the positioning seat 23 along the corresponding guide groove 2357; at the same time, after the pushing part 2537 pushes the abutting member 2581 and disengages from the abutting of the second abutting top 2583, the pushing part 2537 and the intermediate abutting top 2584 slides against the abutment, and the elastic element 2587 is compressed by the abutment element 2581 and undergoes elastic deformation until the pushing part 2537 passes the intermediate abutment top 2584 and is positioned at the first abutment top 2582. The frictional resistance between the pushing part 2537 and the intermediate abutment top 2584 causes the driven member 253 to be positioned at any angle between 90 degrees and 0 degrees relative to the positioning seat 23. The rotating member 251 and the corresponding side support member 271 rotate through the cooperation between the arc rail 2710 and the arc groove 2516. The support shaft 2374 on the positioning seat 23 slides and rotates in the limiting groove 2714 of the corresponding support arm 2712. That is, the support shaft 2374 slides and rotates from the second limiting section 2714b of the limiting groove 2714 to the first limiting section 2714a, so that the side support members 271 on both sides of the positioning seat 23 move away from each other until the support shaft 2374 is limited to the first limiting section 2714a of the limiting groove 2714. At this time, the front of the two side support members 271 is flush with the front of the positioning seat 23.

[0104] Please refer to the following: Figures 1-6The installed pivot device 22 is placed between the two frames 21, and the opposite sides of the pivot device 22 are fixedly connected to the two frames 21 respectively. Specifically, the first rotating mechanism 250 and the second rotating mechanism 250' on opposite sides of the back cover 28 are respectively housed in the mounting grooves 216 of the two frames 21, and the end of the rotating member 251 away from the back cover 28 is fixedly connected to the frame 21. At this time, the front faces 211 of the two frames 21, the front faces of the two side supports 271, and the front faces 2311 of the middle support 273 are coplanar. The back of the flexible screen 30 is connected to the front faces 211 of the two frames 21 and the front face of the pivot device 22; specifically, the bendable area 31 is attached to the front face of the pivot device 22, and the two non-bendable areas 33 are attached to the front faces 211 of the two frames 21 respectively. At this time, the rotating arm 2510 of the rotating component 251 is located on the outside of the flexible screen 30, that is, the rotating arm 2510 is not located on the back of the flexible screen 30. In other words, the rotating component 251 is located at the end of the positioning seat 23, which reduces the space occupied by the rotating component 251 on the front of the positioning seat 23. Therefore, the front of the positioning seat 23 has enough space for placing heat dissipation materials or flexible cables, etc., and the space of the receiving slot 2332 of the positioning seat 23 is large, which facilitates the positioning seat 23 to accommodate other components. Since the rotating component 251, the driven component 253 and the side support 271 are all directly connected to the positioning seat 23, the connection between the components in the rotating shaft device 22 can be made compact, thereby reducing the overall width of the rotating shaft device 22, reducing the space occupied in the internal space of the housing 20, which is beneficial to the layout of other components such as the motherboard or battery, and is beneficial to the miniaturization of the electronic device 100. The rotating component 251 is rotatably connected to the positioning seat 23, and the driven component 253 is slidably connected to the rotating component 251, and the side support 271 is rotatably connected to the positioning seat 23. The supporting member 271 is rotatably connected to the rotating member 251. Therefore, the connection between the components of the rotating shaft device 22 is stable and firm. When the electronic device 100 falls, the components are not easy to shift, thus avoiding damage to the flexible screen 30. The rotating shaft device 22 realizes the synchronous folding or synchronous folding of the two side supporting members 271 through the linkage mechanism 257, which is convenient to use and simple to operate. The rotating shaft device 22 realizes the synchronous limiting of the driven members 253 on both sides of the back cover 28 relative to the positioning seat 23 through the torque mechanism 258. The frictional resistance between the pushing part 2537 and the middle abutting top 2584 makes the bendable area 31 of the flexible screen 30 positioned at any bending angle, so that the two frames 21 can be freely adjusted in the unfolded state, folded state and intermediate state. That is, the electronic device 100 can be positioned in the unfolded state, fully folded state and any intermediate state, so that the two frames 21 of the electronic device 100 have a hovering function from 0 degrees to 180 degrees, with a large hovering angle range.The intermediate state refers to the folded state of the electronic device 100 when the pushing part 2537 of the driven member 253 slides against the intermediate abutting top 2584 of the abutting member 2581, that is, the folded state of the electronic device 100 when the included angle between the two frames 21 is greater than 0 degrees and less than 180 degrees.

[0105] Please refer to the following: Figures 24-37When bending the electronic device 100, a bending force is applied to at least one of the two frames 21 of the electronic device 100, causing the first rotating mechanism 250 and the second rotating mechanism 250' connected to the two frames 21 to rotate relative to the positioning seat 23 and rotate towards each other. The rotating part 251 of the first rotating mechanism 250 and the driven part 253 are slidably connected through the cooperation of the limiting shaft 2531 and the limiting groove 2519. The rotating part 251 of the second rotating mechanism 250' and the driven part 253 are slidably connected through the cooperation of the limiting shaft 2531 and the limiting groove 2519. The side support 271 rotates relative to the rotating part 251, and the side support 271 and the positioning seat 23 are slidably and rotatably connected through the cooperation of the support shaft 2374 and the guide groove 2357, so as to realize the folding of the rotating shaft device 22. The bendable area 31 of the flexible screen 30 bends with the rotating shaft device 22. Specifically, a bending force is applied to one of the frame bodies 21, causing the corresponding rotating member 251 to rotate relative to the positioning seat 23, and the driven member 253 to rotate relative to the positioning seat 23. The limiting shaft 2531 of the driven member 253 slides in the corresponding limiting groove 2519, causing the rotating member 251 and the driven member 253 to rotate relative to the positioning seat 23 towards the side closer to the flexible screen 30. Simultaneously, the eccentric portion 2536 of the driven member 253 slides in the corresponding linkage groove 25. The movement of component 71 causes the linkage 2570 to slide along the corresponding guide groove 2357 towards the positioning seat 23. The linkage 2570 drives the eccentric portion 2536 of the other driven component 253 to move in the corresponding linkage groove 2571, causing the other driven component 253 to rotate synchronously relative to the positioning seat 23 around the corresponding rotation axis 2530. This achieves synchronous rotation of the two driven components 253 relative to the positioning seat 23, bringing them closer together. The other driven component 253 drives the corresponding rotating component 251 to rotate around... The corresponding connecting shaft 2301 rotates to allow the two rotating parts 251 to rotate synchronously relative to the positioning seat 23 and move closer to each other; simultaneously, the rotating part 251 and the corresponding side support 271 rotate through the cooperation between the arc rail 2710 and the arc groove 2516, and the support shaft 2374 on the positioning seat 23 slides and rotates in the limiting groove 2714 of the corresponding support arm 2712, that is, the support shaft 2374 slides from the first limiting section 2714a of the limiting groove 2714 and... Rotating to the second limiting section 2714b, the side support members 271 on both sides of the positioning seat 23 move closer to each other until the support shaft 2374 is limited to the second limiting section 2714b of the limiting groove 2714. The front of the two side support members 271 and the front of the middle support member 273 form a teardrop shape in cross section. The bendable area 31 of the flexible screen 30 bends with the rotating shaft device 22 until the bendable area 31 bends into a teardrop shape, thereby realizing the folding of the electronic device 100.

[0106] During the bending process of the electronic device 100, the central support 273 moves closer to the positioning seat 23, making the teardrop-shaped space formed by the front of the central support 273 and the front of the two side supports 271 larger. This facilitates the bending area 31 of the flexible screen 30 to be bent into a teardrop shape, reducing the occupancy ratio of the bending area 31 after bending, thereby reducing the overall thickness of the electronic device 100.

[0107] In other bending methods of the electronic device 100, bending forces can be applied to both frames 21 at the same time. The two frames 21 respectively drive the first rotating mechanism 250 and the second rotating mechanism 250' to rotate towards the side closer to the flexible screen 30, and drive the two side support members 271 to move closer to each other, while the middle support member 273 moves away from the flexible screen 30. The bending of the electronic device 100 is achieved through the rotating shaft device 22.

[0108] When it is necessary to flatten the electronic device 100, an unfolding force is applied to at least one of the two frames 21 of the electronic device 100, causing the first rotating mechanism 250 and the second rotating mechanism 250' connected to the two frames 21 to rotate relative to the positioning seat 23 in a direction away from each other. The rotating member 251 and the driven member 253 of the first rotating mechanism 250 slide against each other through the cooperation of the limiting shaft 2531 and the limiting groove 2519. The rotating member 251 of the second rotating mechanism 250' slides against each other. The driven member 253 slides against each other through the cooperation of the limiting shaft 2531 and the limiting groove 2519. The two side support members 271 rotate relative to the rotating member 251 of the first rotating mechanism 250 and the rotating member 251 of the second rotating mechanism 250', respectively. The side support member 271 slides and rotates with the positioning seat 23 through the cooperation of the support shaft 2374 and the guide groove 2357, so as to realize the unfolding of the rotating shaft device 22. The bendable area 31 of the flexible screen 30 flattens out with the rotating shaft device 22. Specifically, an unfolding force is applied to one of the frames 21, causing the corresponding rotating member 251 to rotate relative to the positioning seat 23. The rotating member 251 causes the driven member 253 to rotate relative to the positioning seat 23, and the limiting shaft 2531 of the driven member 253 slides in the corresponding limiting groove 2519, causing the rotating member 251 and the driven member 253 to rotate relative to the positioning seat 23 away from the flexible screen 30. At the same time, the eccentric portion 2536 of the driven member 253... The linkage groove 2571 moves, causing the linkage member 2570 to slide away from the positioning seat 23 along the corresponding guide groove 2357. The linkage member 2570 drives the eccentric part 2536 of another driven member 253 to move in the corresponding linkage groove 2571, causing the other driven member 253 to rotate synchronously relative to the positioning seat 23 around the corresponding rotation axis 2530, thereby realizing that the two driven members 253 rotate synchronously relative to the positioning seat 23 and move away from each other. The other driven member 253 drives the corresponding rotating member 251 to rotate around the corresponding connecting shaft 2301, so that the two rotating members 251 rotate synchronously relative to the positioning seat 23 and move away from each other. At the same time, the rotating member 251 and the corresponding side support member 271 rotate through the cooperation between the arc rail 2710 and the arc groove 2516. The support shaft 2374 on the positioning seat 23 slides and rotates in the limiting groove 2714 of the corresponding support arm 2712, that is, the support shaft 2374 moves from the second limiting section 2 of the limiting groove 2714. 714b slides and rotates to the first limiting section 2714a, causing the side support members 271 on both sides of the positioning seat 23 to move away from each other until the support shaft 2374 is limited to the first limiting section 2714a of the limiting groove 2714, so that the side support members 271 on both sides of the positioning seat 23 unfolds to each other until the two side support members 271 and the positioning seat 23 are flattened, and the bendable area 31 of the flexible screen 30 unfolds with the rotating shaft device 22 until the flexible screen 30 is flattened.

[0109] In other ways of unfolding the electronic device 100, an outward pulling force can be applied to both frames 21 at the same time. The two frames 21 respectively drive the first rotating mechanism 250 and the second rotating mechanism 250' to rotate relative to the side away from the flexible screen 30, so that the two side support members 271 rotate relative to the side away from the flexible screen 30, and the electronic device 100 is unfolded through the rotating shaft device 22.

[0110] The rotating shaft device 22 of the electronic device 100 of the present invention achieves bending or unfolding through the rotating assembly 25. Since the rotating component 251 and the driven component 253 of the rotating assembly 25 are rotatably connected to the positioning seat 23, and the side support 271 is connected to the positioning seat 23 through the support shaft 2374 and the guide groove 2357, the connection between the components in the rotating shaft device 22 can be made compact, thereby reducing the overall width of the rotating shaft device 22, reducing the internal space occupied by the housing 20, and facilitating the layout of other components such as the motherboard or battery. Secondly, the rotating shaft device 22 achieves synchronous folding or flattening of the two side support components 271 through the linkage mechanism 257, which is convenient to operate. In addition, the rotating shaft device 22 achieves hovering through the torque mechanism 258, so that the two frames 21 of the electronic device 100 can achieve a wide range of hovering functions, that is, the included angle between the two frames 21 can be between 0 degrees and 180 degrees. Furthermore, when the electronic device 100 is in a flattened state, the eccentric part 2536 supports the linkage 2570, and the linkage 2570 supports the bendable area 31 of the flexible screen 30, so that the front of the side support plate 271 and the front of the central support 273 remain coplanar, which enables the side support plate to provide stable support for the flexible screen 30 and prevents the flexible screen 30 from sinking and being damaged.

[0111] The above are the embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the embodiments of the present invention, and these improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A rotating shaft device, characterized in that, The rotating shaft device includes: Positioning seat; A rotating assembly includes a first rotating mechanism and a second rotating mechanism disposed on opposite sides of the positioning seat. Both the first and second rotating mechanisms include a rotating member and a driven member. The rotating members of the first and second rotating mechanisms are rotatably connected to the positioning seat, and the driven members of the first and second rotating mechanisms are also rotatably connected to the positioning seat. The driven member on the same side of the positioning seat is slidably connected to the rotating member. The linkage mechanism includes a linkage member disposed between the driven member of the first rotating mechanism and the driven member of the second rotating mechanism. The linkage member is slidably connected to the driven member of the first rotating mechanism and the driven member of the second rotating mechanism through the cooperation of an eccentric part and a linkage groove. When the rotating component of the first rotating mechanism rotates relative to the positioning seat, the driven component of the first rotating mechanism rotates relative to the positioning seat, and the two eccentric parts move synchronously in the two linkage slots respectively. At the same time, the linkage component moves relative to the positioning seat, causing the driven component of the second rotating mechanism to rotate synchronously relative to the positioning seat, so that the rotating components of the first and second rotating mechanisms rotate synchronously relative to the positioning seat; or when the rotating component of the second rotating mechanism rotates relative to the positioning seat, the driven component of the second rotating mechanism rotates relative to the positioning seat, and the two eccentric parts move synchronously in the two linkage slots respectively. At the same time, the linkage component moves relative to the positioning seat, causing the driven component of the first rotating mechanism to rotate synchronously relative to the positioning seat, so that the rotating components of the first and second rotating mechanisms rotate synchronously relative to the positioning seat.

2. The rotating shaft device according to claim 1, characterized in that, In the first rotating mechanism and the second rotating mechanism, the first rotation axis between the rotating member and the positioning seat is parallel to the second rotation axis between the driven member and the positioning seat. The first rotation axis on the same side of the positioning seat is closer to the center line of the positioning seat than the second rotation axis. The linkage member is provided with the linkage groove at opposite ends. The two driven members are provided with the eccentric part corresponding to the two linkage grooves. The two eccentric parts are slidably accommodated in the two linkage grooves. The eccentric part on each driven member deviates from the corresponding second rotation axis.

3. The rotating shaft device according to claim 2, characterized in that, The eccentric portion is an eccentric shaft, and the linkage groove extends in a direction perpendicular to the second rotation axis. The axis of the eccentric shaft is parallel to the second rotation axis at intervals. When the driven member of the first rotation mechanism rotates relative to the positioning seat, the eccentric shaft on the driven member of the first rotation mechanism moves in the corresponding linkage groove, and the linkage moves in a direction perpendicular to the second rotation axis, so that the eccentric shaft on the driven member of the second rotation mechanism moves synchronously in the corresponding linkage groove, thereby realizing synchronous rotation of the driven member of the second rotation mechanism relative to the positioning seat; or when the driven member of the second rotation mechanism rotates relative to the positioning seat, the eccentric shaft on the driven member of the second rotation mechanism moves in the corresponding linkage groove, and the linkage moves in a direction perpendicular to the second rotation axis, so that the eccentric shaft on the driven member of the first rotation mechanism moves synchronously in the corresponding linkage groove, thereby realizing synchronous rotation of the driven member of the first rotation mechanism relative to the positioning seat.

4. The rotating shaft device according to claim 2, characterized in that, The linkage groove includes a first stop section and a second stop section located at opposite ends therein, wherein the first stop section is farther away from the center line of the positioning seat than the second stop section; when the driven member of the first rotating mechanism and the driven member of the second rotating mechanism are in a flattened state, the eccentric portion is positioned at the first stop section, and when the driven member of the first rotating mechanism and the driven member of the second rotating mechanism are in a fully folded state, the eccentric portion is positioned at the second stop section.

5. The rotating shaft device according to claim 2, characterized in that, The linkage component and the positioning seat are slidably connected by a guide groove and a guide rail. The guide groove extends along the moving direction of the linkage component. The guide groove is provided in one of the linkage component and the positioning seat, and the guide rail is provided in the other of the linkage component and the positioning seat.

6. The rotating shaft device according to claim 2, characterized in that, The rotating shaft device further includes a support assembly, which includes side support members disposed on opposite sides of the positioning seat and a central support member located between the two side support members. The two side support members are rotatably connected to the rotating members of the first rotating mechanism and the second rotating mechanism, respectively, and are movably connected to the positioning seat, respectively. The central support member is connected to the linkage member and moves with the linkage member. When the two side support members are in a flattened state, the front surface of the central support member is coplanar with the front surfaces of the two side support members.

7. The rotating shaft device according to claim 6, characterized in that, The rotating assembly further includes a torque mechanism disposed between the driven member of the first rotating mechanism and the driven member of the second rotating mechanism. The torque mechanism includes a pushing part disposed on the driven member of the first rotating mechanism or the driven member of the second rotating mechanism, a supporting member slidably connected to the positioning seat, and an elastic member. The elastic member pushes against the supporting member and the pushing part to abut against each other. When the driven member of the first rotating mechanism or the driven member of the second rotating mechanism rotates relative to the positioning seat, the frictional resistance between the pushing part and the supporting member positions the driven member relative to the positioning seat.

8. The rotating shaft device according to claim 7, characterized in that, The driven members of the first rotating mechanism and the driven members of the second rotating mechanism on opposite sides of the positioning seat are respectively provided with the pushing part, and two abutting members are provided between the two driven members. The elastic member is clamped by the two abutting members, and the two abutting members abut against the two pushing parts respectively.

9. The rotating shaft device according to claim 7, characterized in that, The abutting member includes a first abutting top and a second abutting top facing the pushing part, with the first abutting top being closer to the central support member than the second abutting top; when the two side support members are in a flattened state, the pushing part is positioned at the first abutting top; when the two side support members are in a fully folded state, the pushing part is positioned at the second abutting top.

10. The rotating shaft device according to claim 9, characterized in that, The pushing part is a protrusion provided on the driven member, the first abutting top is a first positioning groove provided on the abutting member, and the second abutting top is a second positioning groove provided on the abutting member. The protrusion can be positioned in the first positioning groove or the second positioning groove.

11. The rotating shaft device according to claim 9, characterized in that, The abutting member further includes an intermediate abutting member disposed between the first abutting member and the second abutting member. During the rotation of the driven member of the first rotating mechanism and the driven member of the second rotating mechanism relative to the positioning seat, the pushing part slides against the intermediate abutting member, and the frictional resistance between the pushing part and the intermediate abutting member positions the driven member relative to the positioning seat.

12. The rotating shaft device according to claim 11, characterized in that, The intermediate abutment top and the abutment part are slidably connected by an abutment groove and a protrusion. The abutment groove is provided in one of the abutment member and the driven member, and the protrusion is provided in the other of the abutment member and the driven member.

13. The rotating shaft device according to claim 7, characterized in that, The positioning seat is provided with a receiving groove, which extends along the moving direction of the abutment. The abutment is slidably accommodated in the receiving groove. The torque mechanism also includes a mounting member, which covers the abutment and is connected to the positioning seat.

14. The rotating shaft device according to claim 6, characterized in that, The positioning seat includes a connecting portion at its end. The rotating components of the first rotating mechanism and the second rotating mechanism are rotatably connected to the connecting portion through the cooperation of a connecting shaft and a shaft hole. The axis of the connecting shaft is collinear with the corresponding first rotating axis. The connecting shaft is located in one of the connecting portion and the rotating component, and the shaft hole is located in the other of the connecting portion and the rotating component.

15. The rotating shaft device according to claim 14, characterized in that, Both the rotating component of the first rotating mechanism and the rotating component of the second rotating mechanism include a rotating arm and a rotating part connected to the rotating arm. The end of the rotating arm away from the rotating part is rotatably connected to the connecting part through the cooperation of a connecting shaft and a shaft hole. The connecting shaft is located in one of the rotating arm and the connecting part, and the shaft hole is located in the other of the rotating arm and the connecting part. The end of the driven member away from the positioning seat is slidably connected to the rotating part.

16. The rotating shaft device according to claim 15, characterized in that, An anti-detachment groove and an anti-detachment rail are provided between the rotating arm and the connecting part. The anti-detachment rail and the anti-detachment groove cooperate to prevent the rotating arm from detaching from the connecting part. The anti-detachment groove is provided in one of the connecting part and the rotating arm, and the anti-detachment rail is provided in the other of the connecting part and the rotating arm.

17. The rotating shaft device according to claim 15, characterized in that, The rotating part is located at the end of the rotating arm away from the positioning seat. The two side support members are rotatably connected to the rotating members of the first rotating mechanism and the second rotating mechanism respectively through the cooperation of arc grooves and arc rails. The arc groove is provided in one of the side support members and the corresponding rotating member, and the arc rail is provided in the other of the side support members and the corresponding rotating member. The axis of the arc groove is parallel to the axis of the first rotation.

18. The rotating shaft device according to claim 6, characterized in that, The driven member and rotating member on the same side of the positioning seat are slidably connected by a limiting groove and a limiting shaft. The centerline of the limiting shaft is parallel to the first rotational axis. The limiting groove is located on one of the driven member and the rotating member, and the limiting shaft is located on the other of the driven member and the rotating member. The limiting groove includes a first limiting segment and a second limiting segment located at opposite ends. The first limiting segment is farther away from the positioning seat than the second limiting segment. When the two side supports are in a flattened state, the limiting shaft is limited to the first limiting segment. When the two side supports are in a fully folded state, the limiting shaft is limited to the second limiting segment.

19. A folding shell, characterized in that, The folding housing includes a pivot device as described in any one of claims 1-18 and two frames, the pivot device being located between the two frames, and the two frames being respectively connected to the ends of the rotating parts on opposite sides of the pivot device away from the positioning seat.

20. An electronic device, characterized in that, The electronic device includes a flexible screen, two frames, and a rotating shaft device as described in any one of claims 1-18. The rotating shaft device is located between the two frames, and the ends of the rotating members on opposite sides of the rotating shaft device that are away from the positioning seat are respectively connected to the two frames. The flexible screen is disposed on the front of the two frames and the front of the rotating shaft device.

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