CN118274014A - Rotating shaft device, folding shell and electronic equipment - Google Patents

Abstract

The application provides a rotating shaft device which comprises a base, a supporting mechanism and a rotating assembly, wherein the supporting mechanism comprises a side supporting piece, and the side supporting piece is connected with the base in a matched rotating way through a first circular arc rail and a first circular arc groove; the rotating component comprises a rotating piece and a connecting piece, the rotating piece is rotationally connected with the base through the cooperation of a second circular arc rail and a second circular arc groove, and one end of the rotating piece, which is far away from the base, is rotationally connected with the connecting piece; the connecting piece is in rolling connection with the side supporting piece through the matching of the limiting groove and the limiting pin; the axial leads of the first arc groove, the axial leads of the second arc groove, the axial leads of the limiting lock, the axial leads of the rotating piece and the rotating shaft between the connecting pieces are mutually parallel, the overall width of the rotating shaft device is reduced, the inner space of the shell occupied by the rotating shaft device is reduced, and the layout of other elements such as a main board or a battery is facilitated. The application also provides a folding shell with the rotating shaft device and electronic equipment.

Description

Rotating shaft device, folding shell and electronic equipment

Technical Field

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

Background

With the development of display equipment, a bendable flexible display screen has appeared, and the folding scheme of the bendable flexible display screen at present comprises inner folding and outer folding, so that the folding screen is also more and more favored by people. The folding screen in the related art is generally supported by adopting a hinge structure or a rotating shaft device; however, most hinge structures and rotating shaft devices at present have larger volumes, occupy larger internal space of products, and are unfavorable for miniaturization of the rotating shaft devices and miniaturization of the products.

Disclosure of Invention

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

The application provides a rotating shaft device which comprises a base, a supporting mechanism and a rotating assembly, wherein the supporting mechanism comprises a side supporting piece, and the side supporting piece is connected with the base in a matched rotating manner through a first arc rail and a first arc groove; the rotating component comprises a rotating piece and a connecting piece, the rotating piece is rotationally connected with the base through the cooperation of a second circular arc rail and a second circular arc groove, and one end of the rotating piece, which is far away from the base, is rotationally connected with the connecting piece; the connecting piece is in rolling connection with the side supporting piece through the cooperation of the limiting groove and the limiting pin; the axial leads of the first arc groove, the axial leads of the second arc groove, the axial leads of the limit lock and the rotating shaft between the rotating piece and the connecting piece are parallel to each other.

The application also provides a folding shell which comprises a rotating shaft device and two frame bodies, wherein the rotating shaft device is positioned between the two frame bodies, and the two frame bodies are respectively connected to two opposite sides of the rotating shaft device.

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

The rotating shaft device can be folded or flattened through the supporting mechanism and the rotating assembly, and compared with the prior art that the flexible screen is supported through the hinge mechanism, the rotating shaft device has the advantages of simple structure, lower manufacturing cost, high connection reliability among all parts and improved strength of the whole machine; and the second side support piece is in rolling connection with the other connecting piece through the matching of the limiting pin and the limiting groove, so that the whole width of the rotating shaft device is reduced, the rotating shaft device occupies the inner space of the shell, the layout of other elements such as a main board or a battery is facilitated, and the connection between the first side support piece and the second side support piece and the base is more stable and firm.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

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

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

FIG. 4 is a partial perspective view of the spindle assembly of FIG. 3;

FIG. 5 is a schematic perspective view of the spindle assembly of FIG. 4 from another perspective;

FIG. 6 is an exploded perspective view of the spindle assembly of FIG. 4;

FIG. 7 is a schematic perspective view of another view of the spindle assembly of FIG. 6;

FIG. 8 is a further exploded perspective view of the spindle assembly of FIG. 6;

FIG. 9 is a schematic perspective view of another view of the spindle assembly of FIG. 8;

FIG. 10 is a schematic front view of the spindle assembly of FIG. 4;

FIG. 11 is a schematic end view of the spindle assembly of FIG. 4;

FIG. 12 is a perspective cross-sectional view of the spindle assembly of FIG. 4;

FIG. 13 is a cross-sectional view of the spindle assembly of FIG. 12;

FIG. 14 is another perspective cross-sectional view of the spindle assembly of FIG. 4;

FIG. 15 is a cross-sectional view of the spindle assembly of FIG. 14;

FIG. 16 is a further perspective cross-sectional view of the spindle assembly of FIG. 4;

FIG. 17 is a cross-sectional view of the spindle assembly of FIG. 16;

FIG. 18 is a further perspective cross-sectional view of the spindle assembly of FIG. 4;

FIG. 19 is a cross-sectional view of the spindle assembly of FIG. 18;

fig. 20 is a schematic perspective view of the electronic device in fig. 1 in a bent state;

FIG. 21 is a schematic perspective view of the spindle assembly of FIG. 20;

FIG. 22 is a schematic end view of the spindle assembly of FIG. 21;

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

FIG. 24 is a cross-sectional view of the spindle assembly of FIG. 23;

FIG. 25 is another perspective cross-sectional view of the spindle assembly of FIG. 21;

FIG. 26 is a cross-sectional view of the spindle assembly of FIG. 25;

FIG. 27 is a further perspective cross-sectional view of the spindle assembly of FIG. 21;

FIG. 28 is a cross-sectional view of the spindle assembly of FIG. 27;

FIG. 29 is a further perspective cross-sectional view of the spindle assembly of FIG. 21;

FIG. 30 is a cross-sectional view of the spindle assembly of FIG. 29;

Fig. 31 is a schematic perspective view of a spindle device according to another embodiment of the present application.

The main reference numerals illustrate: 100. an electronic device; 30. a flexible screen; 31. a bendable region; 33. a non-bending region; 20. folding the shell; 21. a frame; 211. a front face; 213. a back surface; 214. a side surface; 215. an end face; 216. a mounting groove; 22. a spindle device; 23. a base; 231. a first base; 2311. a first front face; 2313. a first back surface; 2314. a first end face; 2315. a first side; 2316. a first connection hole; 2317. a first positioning hole; 2318. a second shaft hole; 232. a first circular arc groove; 233. a second seat body; 2331. a second front face; 2333. a second back surface; 2334. a second end face; 2335. a second side; 2336. a second connection hole; 2337. a second positioning hole; 234. a second circular arc groove; 235. a third base; 2351. a third front face; 2353. a third back surface; 2354. a third end face; 2355. a third side; 2356. a third connection hole; 2357. a third positioning hole; 24. a support mechanism; 241. a first side support; 2411. a first side support plate; 2415. a first support block; 242. a first circular arc rail; 243. a limiting pin; 244. a first connection portion; 2441. a front face; 2443. a back surface; 245. a second side support; 2451. a second side support plate; 2455. a second support block; 246. a second connecting portion; 2461. a front face; 2463. a back surface; 25. a rotating assembly; 251. a rotating member; 2511. a second circular arc rail; 2512. a first transfer section; 2556. a limit groove; 2556a, a first limit end; 2556b, a second limiting end; 2514. a second switching part; 2514a, second shaft holes; 2515. a first connection portion; 2517. a limiting block; 253. a transmission member; 2531. a rotating part; 2533. a sliding part; 2533a, a guide rail; 2535. a second connecting portion; 2536. a second rotating shaft; 255. a connecting piece; 2550. a connecting plate; 2551. a first rotating shaft; 2552. a lug; 2553. a first shaft hole; 2554. a guide chute; 2555. a sliding assisting block; 28. a back cover; 280. a receiving groove; 281. a first connection post; 2812. a first connection hole; 282. a first positioning column; 284. a second connection post; 2842. a second connection hole; 285. a second positioning column; 286. a third connecting column; 2862. a third connection hole; 287. and a third positioning column.

Detailed Description

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

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

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

Referring to fig. 1to 7, an electronic device 100 according to an embodiment of the invention includes a foldable housing 20 and a flexible screen 30 disposed on the foldable housing 20. The flexible screen 30 may be flexible components with corresponding functions such as a flexible display screen, a flexible touch display screen, or flexible components fixedly attached with a flexible support plate, such as a flexible display screen attached with a flexible steel plate, a flexible touch screen, and the like. The flexible screen 30 bends or flattens with the folded housing 20. The folding housing 20 includes two frames 21 and a rotating shaft device 22 disposed between the two frames 21, and the two frames 21 are respectively connected to opposite sides of the rotating shaft device 22. The flexible screen 30 comprises a bendable region 31 corresponding to the spindle means 22, and two non-bendable regions 33 connected to opposite sides of the bendable region 31. The two non-bending areas 33 of the flexible screen 30 can be fixed on the front faces of the two frames 21 respectively, and the bendable areas 31 are attached to the front faces of the rotating shaft device 22. The bendable region 31 of the flexible screen 30 bends or flattens with the spindle means 22. The rotating shaft device 22 comprises a base 23, a supporting mechanism 24, a rotating assembly 25 and a back cover 28, wherein the supporting mechanism 24 comprises a side supporting piece, and the side supporting piece is rotatably connected with the base 23 through the cooperation of a first circular arc rail and a first circular arc groove; The rotating assembly 25 comprises a rotating member 251, a transmission member 253 and a connecting member 255, wherein the rotating member 251 is rotationally connected with the base 23 through the cooperation of a second circular arc rail and a second circular arc groove, one end of the rotating member 251 far away from the base 23 is rotationally connected with the connecting member 255, and the connecting member 255 is rotationally connected with the side supporting member through the cooperation of a limiting groove and a limiting pin; the axial lead of the first arc groove, the axial lead of the second arc groove, the axial lead of the limit lock and the axial lead of the rotating piece 251 and the connecting piece 255 are parallel to each other; one end of the transmission member 253 is rotatably connected to the base 23, and one end of the transmission member 253 remote from the base 23 is slidably connected to the connection member 255. In the present embodiment, the supporting mechanism 24 includes a first side supporting member 241 and a second side supporting member 245 rotatably connected to opposite sides of the base 23, wherein the first side supporting member 241 is rotatably connected to the base 23 through a first circular arc rail provided on one of the first side supporting member 241 and the base 23 and a first circular arc groove provided on the other of the first side supporting member 241 and the base 23; the second side support 245 is rotatably connected to the base 23 by a first arcuate rail provided on one of the second side support 245 and the base 23 and a first arcuate groove provided on the other of the second side support 245 and the base 23. Specifically, the first side supporting piece 241 and the second side supporting piece 245 are respectively provided with a first arc rail 242, two opposite sides of the base 23 are respectively provided with a first arc groove 232, axial lines of the two first arc grooves 232 are parallel to each other, and the two first arc rails 242 are respectively rotatably accommodated in the two first arc grooves 232. Two opposite sides of the base 23 are respectively provided with a rotating component 25, rotating members 251 of the two rotating components 25 are respectively connected to the base 23 in a rotating way through the cooperation of second circular arc rails and second circular arc grooves, the second circular arc rails are arranged on one of the rotating members 251 and the base 23, and the second circular arc grooves are arranged on the other one of the rotating members 251 and the base 23; Specifically, the rotating member 251 is provided with a second arc rail 2511, two opposite sides of the base 23 are respectively provided with a second arc groove 234, axial lines of the two second arc grooves 234 are parallel to each other, and the second arc rails 2511 of the two rotating members 251 are respectively rotatably accommodated in the two second arc grooves 234. The first side supporting piece 241 is in rolling connection with one connecting piece 255 through the cooperation of a limit groove and a limit pin, the limit groove is arranged on one of the first side supporting piece 241 and the one connecting piece 255, and the limit pin is arranged on the other one of the first side supporting piece 241 and the one connecting piece 255; The second side supporting piece 245 is connected with the other connecting piece 255 in a rolling way through the cooperation of a limiting groove and a limiting pin, and the limiting groove is arranged on the other one of the second side supporting piece 245 and the other connecting piece 255; specifically, the two connecting pieces 255 are respectively provided with a limiting groove 2556, the first side supporting piece 241 and the second side supporting piece 245 are respectively provided with a limiting pin 243, the axial lines of the two limiting pins 243 are parallel to each other, and the axial lines of the limiting pins 243 are parallel to the axial line of the second circular arc groove 234.

The two frames 21 of the electronic device 100 are respectively connected to the connecting pieces 255 of the two rotating assemblies 25 of the rotating shaft device 22, the frames 21 drive the rotating pieces 251 and the transmission pieces 253 to rotate relative to the base 23 through the connecting pieces 255, the first side supporting pieces 241 and the second side supporting pieces 245 are respectively and rotatably connected with the base 23 through the cooperation of the first circular arc rail 242 and the first circular arc groove 232, the first side supporting pieces 241 and the second side supporting pieces 245 are respectively and rotatably connected with the two rotating pieces 251 through the cooperation of the limiting grooves and the limiting pins, the first side supporting pieces 241 and the second side supporting pieces 245 of the supporting mechanism 24 are bent or unfolded along with the rotating assemblies 25, the flexible screen 30 is bent or flattened along with the first side supporting pieces 241 and the second side supporting pieces 245, and the bendable region 31 can be bent to form a water drop shape.

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

The rotating shaft device 22 of the electronic device 100 of the present application includes a supporting mechanism 24 and a rotating assembly 25, wherein one end of a rotating member 251 of the rotating assembly 25 is rotatably connected to a base 23 through the cooperation of a second arc rail 2511 and a second arc slot 234, and the opposite end of the rotating member 251 is rotatably connected to a connecting member 255; one end of a transmission member 253 of the rotating assembly 25 is rotatably connected to the base 23, the opposite end of the transmission member 253 is slidably connected with the connecting member 255, the first side supporting member 241 is connected with the base 23 in a matched connection with the first circular arc groove 232 through the first circular arc rail 242, the first side supporting member 241 is in matched rolling connection with one connecting member 255 through the limiting pin 243 and the limiting groove 2556, and the second side supporting member 245 is in matched rolling connection with the other connecting member 255 through the limiting pin 243 and the limiting groove 2556. In the process of approaching or separating the two frames 21 from each other, the connecting piece 255 drives the rotating piece 251 and the transmission piece 253 to rotate relative to the base 23, and the two connecting pieces 255 drive the first side supporting piece 241 and the second side supporting piece 245 to fold or unfold each other, so as to fold or flatten the flexible screen 30. Because the rotating shaft device 22 can be folded or flattened through the supporting mechanism 24 and the rotating assembly 25, compared with the prior art that the flexible screen is supported through the hinge mechanism, the rotating shaft device 22 has the advantages of simple structure, lower manufacturing cost, high connection reliability among all parts and improved strength of the whole machine; in the present application, the first side supporting member 241 and the second side supporting member 245 are respectively rotatably connected with the base 23 through the cooperation of the first circular arc rail 242 and the first circular arc groove 232, so that the overall width of the rotating shaft device 22 is reduced, the space occupied by the rotating shaft device 22 in the housing 20 is reduced, the layout of other components such as a motherboard or a battery is facilitated, and the connection between the first side supporting member 241 and the second side supporting member 245 and the base 23 is more stable and firm.

As shown in fig. 1 to 3, the connecting pieces 255 on opposite sides of the rotating shaft device 22 are respectively and fixedly connected to the two frames 21, and the connecting pieces 255 and the frames 21 can be fixed by, but not limited to, screw connection, clamping connection, glue connection, or the like. When one frame 21 is folded or flattened relative to the other frame 21, the corresponding rotating assemblies 25 can be driven to rotate relative to the base 23, and the two rotating assemblies 25 drive the first side supporting piece 241 and the second side supporting piece 245 to rotate relative to the base 23 and rotate relative to the connecting piece 255 and slide until the first side supporting piece 241 and the second side supporting piece 245 are folded into a water drop shape or unfolded into a horizontal shape, and the bendable region 31 of the flexible screen 30 is folded into a water drop shape or unfolded into a horizontal shape along with the rotating shaft device 22.

As shown in fig. 2 and 3, the frame 21 includes a front 211, a back 213, opposite side 214 and two end 215, the rotation shaft device 22 is connected between the two end 215 of the two frames 21, and the non-bending region 33 of the flexible screen 30 is connected to the front 211 of the frame 21; the end face 215 of each frame 21 facing the rotating shaft device 22 is provided with a mounting groove 216, the mounting groove 216 penetrates through the front face 211 of the frame 21, and two opposite ends of the mounting groove 216 extend to be close to two opposite side faces 214 of the frame 21. Opposite sides of the rotating shaft device 22 are respectively accommodated in the mounting grooves 216 of the two frames 21, and each connecting piece 255 is fixedly connected with the corresponding frame 21. The back surface 213 of the frame 21 is provided with a plurality of accommodating spaces (not shown) for mounting electronic devices such as a circuit board and a battery.

Referring to fig. 4-9, the base 23 is provided with a first arc groove 232, and the side support is provided with a first arc rail 242; in the present embodiment, the opposite sides of the base 23 are respectively provided with a first arc groove 232, the first side supporting member 241 and the second side supporting member 245 are respectively provided with a first arc rail 242, and the two first arc rails 242 are respectively rotatably accommodated in the two first arc grooves 232 of the base 23; the base 23 is provided with a second arc groove 234, and one end of the rotating member 251 away from the side supporting member is provided with a second arc rail 2511; in this embodiment, the opposite sides of the base 23 are respectively provided with a second arc groove 234, the ends of the two rotating members 251 are respectively provided with a second arc rail 2511, and the two second arc rails 2511 are respectively rotatably accommodated in the two second arc grooves 234 of the base 23. Specifically, the base 23 includes a first seat 231, a second seat 233, and a third seat 235, where the first seat 231, the second seat 233, and the third seat 235 are connected to the back cover 28 at intervals, and the first seat 231 is located between the second seat 233 and the third seat 235; one end of the rotating member 251 is rotatably connected between the first housing 231 and the second housing 233, and one end of the transmission member 253 is rotatably connected to the first housing 231. Specifically, the first seat 231 is a rectangular block, the first seat 231 includes a first front surface 2311, a first back surface 2313 facing away from the first front surface 2311, two opposite first end surfaces 2314 and two opposite first side surfaces 2315, two opposite sides of the first end surface 2314 of the first seat 231 facing toward the second seat 233 are respectively provided with a second circular arc groove 234, and two opposite ends of the second circular arc groove 234 are respectively penetrated through the first front surface 2311; The axes of the two second circular arc grooves 234 are spaced apart from each other in parallel. The first front surface 2311 of the first seat 231 has a first connection hole 2316 at a middle portion thereof, and the first connection hole 2316 penetrates through the first rear surface 2313 of the first seat 231; optionally, the first connection hole 2316 is a countersunk hole, and the first front surface 2311 of the first seat 231 is respectively provided with a first positioning hole 2317 at two opposite sides of the first connection hole 2316, and the first positioning hole 2317 penetrates through the first back surface 2313 of the first seat 231. The second seat body 233 is a rectangular block, the second seat body 233 comprises a second front surface 2331, a second back surface 2333 deviating from the second front surface 2331, two opposite second end surfaces 2334 and two opposite second side surfaces 2335, two opposite sides of the second end surface 2334 of the second seat body 233 facing the first seat body 231 are respectively provided with a second circular arc groove 234, and two opposite ends of the second circular arc groove 234 are respectively penetrated through the second front surface 2331; The axial lines of the two second circular arc grooves 234 are mutually parallel at intervals; when the first seat 231 and the second seat 233 are positioned on the back cover 28, the two second circular grooves 234 of the first seat 231 are respectively opposite to the two second circular grooves 234 of the second seat 233, i.e. the axial lines of the two second circular grooves 234 of the first seat 231 are respectively collinear with the axial lines of the two second circular grooves 234 of the second seat 233. A second connection hole 2336 is arranged in the middle of the second front surface 2331 of the second seat 233, and the second connection hole 2336 penetrates through the second back surface 2333 of the second seat 233; Optionally, the second connecting hole 2336 is a countersunk hole, and the second front surface 2331 of the second seat 233 is provided with second positioning holes 2337 on two opposite sides of the second connecting hole 2336, respectively, and the second positioning holes 2337 penetrate through the second back surface 2333 of the second seat 233. The third seat 235 is a rectangular block, the third seat 235 comprises a third front surface 2351, a third back surface 2353 deviating from the third front surface 2351, two opposite third end surfaces 2354 and two opposite third side surfaces 2355, two opposite sides of the third end surface 2354 of the third seat 235 facing the first seat 231 are respectively provided with a first arc groove 232, and two opposite ends of the first arc groove 232 are respectively penetrated through the third front surface 2351; The axial lines of the two first arc grooves 232 are mutually parallel at intervals; a third connection hole 2356 is provided in the middle of the third front surface 2351 of the third base 235, and the third connection hole 2356 penetrates through the third rear surface 2353 of the third base 235; optionally, the third connecting hole 2356 is a countersunk hole, and the third front surface 2351 of the third base 235 is provided with third positioning holes 2357 on two opposite sides of the third connecting hole 2356, respectively, and the third positioning holes 2357 penetrate through the third back surface 2353 of the third base 235.

In some embodiments, the opposite sides of the third seat 235 facing away from the third end surface 2354 of the first seat 231 are respectively provided with a first arc groove 232, the axes of the two first arc grooves 232 are spaced apart and parallel, and the opposite ends of the first arc groove 232 respectively penetrate through the third front surface 2351.

As shown in fig. 8 and 9, the back cover 28 is a bar-shaped frame, the back cover 28 has a receiving groove 280, and the first seat 231, the second seat 233 and the third seat 235 are respectively received in the receiving groove 280 and fixedly connected to the back cover 28. Specifically, the back cover 28 is provided with a first connection post 281 and a first positioning post 282 located at two opposite sides of the first connection post 281 at the middle of the bottom surface in the accommodating groove 280, and the first connection post 281 is provided with a first connection hole 2812 along the axial direction thereof; one end of the bottom surface of the back cover 28 in the accommodating groove 280 is provided with a second connecting column 284 and second positioning columns 285 positioned on two opposite sides of the second connecting column 284, and the second connecting column 284 is provided with a second connecting hole 2842 along the axial direction thereof; the opposite end of the bottom surface of the back cover 28 in the accommodating groove 280 is provided with a third connecting column 286 and third positioning columns 287 positioned on opposite sides of the third connecting column 286, and the third connecting column 286 is provided with a third connecting hole 2862 along the axial direction thereof.

As shown in fig. 4 to 9, the side supporting piece includes a supporting plate and a connecting portion disposed at one side of the supporting plate, and the first circular arc rail 242 is disposed at the connecting portion; the rotating member 251 includes a first connection portion 2512, a second connection portion 2514, and a first connection portion 2515 connected between the first connection portion 2512 and the second connection portion 2514, and the second circular arc rail 2511 is provided at the first connection portion 2512. Specifically, the first side support 241 includes a rectangular first side support plate 2411, a first connection portion 244 is convexly disposed on a side of the first side support plate 2411 near the base 23, and the first circular arc rail 242 is disposed on a side of the first connection portion 244; optionally, the first connecting portion 244 is a semicircular block, the first connecting portion 244 includes a front surface 2441, a back surface 2443 facing away from the front surface 2441, and opposite side surfaces, the front surface 2441 is coplanar with the front surface of the first side supporting plate 2411, the back surface 2443 of the first connecting portion 244 is an arc surface, the first arc rail 242 is disposed on one side surface of the first connecting portion 244, and an axial line of the first arc rail 242 is collinear with an axial line of the back surface 2443. Alternatively, the outer circumferential surface of the first circular arc rail 242 is coplanar with the rear surface 2443 of the first connection portion 244. The second side supporting piece 245 comprises a rectangular second side supporting plate 2451, a second connecting portion 246 is convexly arranged on one side, close to the base 23, of the second side supporting plate 2451, and the first arc rail 242 is arranged on one side of the second connecting portion 246; optionally, the second connecting portion 246 is a semicircular block, the second connecting portion 246 includes a front surface 2461, a back surface 2463 facing away from the front surface 2461, and opposite side surfaces, the front surface 2461 is coplanar with the front surface of the second side supporting plate 2451, the back surface 2463 of the second connecting portion 246 is an arc surface, the first arc rail 242 is disposed on one side surface of the second connecting portion 246, and an axial line of the first arc rail 242 is collinear with an axial line of the back surface 2463. Alternatively, the outer circumferential surface of the first circular arc rail 242 is coplanar with the rear surface 2463 of the second connecting portion 246.

In some embodiments, the first circular arc groove 232 on the base 23 and the first circular arc rail 242 on the first side support 241 and the second side support 245 are provided with the first circular arc rail 242 respectively can be interchanged; such as: a first circular arc groove may be formed on a side surface of the first connection portion 244, a first circular arc rail corresponding to the first circular arc groove is provided on the base 23, the first circular arc rail is rotatably inserted into the first circular arc groove, and an axis of the first circular arc groove, an axis of the first circular arc rail, and an axis of rotation between the first side support 241 and the base 23 are collinear; a first circular arc groove may be formed on a side surface of the second connection portion 246, a first circular arc rail corresponding to the first circular arc groove is provided on the base 23, the first circular arc rail is rotatably inserted into the first circular arc groove, and an axis of the first circular arc groove, an axis of the first circular arc rail, and an axis of rotation between the second side support 245 and the base 23 are collinear.

The limiting pin 243 is disposed on a side of the side support close to the base 23, specifically, a side of the first side support 241 close to the base 23 is provided with the limiting pin 243, in this embodiment, one end of the back surface of the first side support plate 2411 far away from the first connection portion 244 is provided with the limiting pin 243, and the first connection portion 244 and the limiting pin 243 on the first side support plate 2411 are located on the same side of the first side support plate 2411. The side of the second side supporting member 245 near the base 23 is provided with a limiting pin 243, in this embodiment, one end of the back surface of the second side supporting plate 2451 far away from the second connecting portion 246 is provided with a limiting pin 243, and the second connecting portion 246 and the limiting pin 243 on the second side supporting plate 2451 are located on the same side of the second side supporting plate 2451. The limiting pin 243 is a cylindrical rod, and the axial line of the cylindrical rod is parallel to the axial line of the first circular arc rail 242. The back of the first side support plate 2411 is convexly provided with a first support block 2415, and one end of the limiting pin 243 is connected to one side of the first support block 2415 away from the first side support plate 2411; the back of the second side support plate 2451 is convexly provided with a second support block 2455, and one end of the limiting pin 243 is connected to one side of the second support block 2455 away from the second side support plate 2451.

As shown in fig. 8 and 9, the connecting piece 255 is rotatably connected to the second adapter 2514 through the engagement between the first shaft 2551 and the first shaft hole 2553, and the axis of the first shaft 2551 is parallel to the axis of the first circular arc groove 232. Specifically, the first adapter 2512 is rotatably connected to the base 23, and the second adapter 2514 is rotatably connected to the corresponding connector 255. The first switching portion 2512 is provided with a second arc rail 2511, and the second switching portion 2514 is rotatably connected with the connecting piece 255 through a rotating shaft. In this embodiment, the first connection portion 2512 is an arc plate disposed at one end of the first connection portion 2515 away from the second connection portion 2514, the second connection portion 2514 is a cylinder disposed at one end of the first connection portion 2515 away from the first connection portion 2512, and the axis of the arc plate is parallel to the axis of the cylinder; opposite ends of the arc plate extend out of opposite sides of the first connection portion 2515, respectively, to form two second arc rails 2511. The second adaptor 2514 is provided with a second axial hole 2514a along an axial direction thereof, and opposite ends of the second axial hole 2514a respectively penetrate through opposite end surfaces of the second adaptor 2514.

In some embodiments, the second circular arc groove 234 on the base 23 and the second circular arc rail 2511 on the rotator 251 may be interchanged; such as: an arc groove may be formed on a side surface of the first connection portion 2512, and an arc rail corresponding to the arc groove may be provided on the base 23, the arc rail may be rotatably inserted into the arc groove, and an axis of the arc groove, an axis of the arc rail, and an axis of rotation between the rotation member 251 and the base 23 may be collinear.

The transmission member 253 includes a rotating portion 2531 and a sliding portion 2533 respectively located at opposite ends thereof, and a second connecting portion 2535 connected between the rotating portion 2531 and the sliding portion 2533, wherein the rotating portion 2531 and the base 23 are rotatably connected with the second shaft hole 2318 through cooperation of the second rotating shaft 2536, the sliding portion 2533 is slidably connected with the connecting member 255, and an axis of the second rotating shaft 2536 is parallel to an axis of the first circular arc groove 232. In this embodiment, the rotating portion 2531 is a rotating cylinder, one end of the second rotating shaft 2536 is inserted into an inner cavity of the rotating cylinder, two opposite sides of the first end surface 2314 of the first seat 231 facing the third seat 235 are respectively provided with a second shaft hole 2318, and one end of the second rotating shaft 2536 away from the rotating portion 2531 is rotatably inserted into the corresponding second shaft hole 2318; the sliding portion 2533 is a sliding plate connected to one end of the second connecting portion 2535, and two opposite sides of the sliding plate extend out of two opposite sides of the second connecting portion 2535 respectively to form two guiding rails 2533a; the second connecting portion 2535 is an L-shaped connecting plate, the rotating portion 2531 is connected to one end of the L-shaped connecting plate, and the sliding portion 2533 is connected to the opposite end of the L-shaped connecting plate.

The limiting groove 2556 is located at one side of the connecting piece 255 near the base 23, the limiting groove 2556 is inclined relative to the axial line of the first circular arc groove 232, the limiting groove 2556 comprises a first limiting end 2556a and a second limiting end 2556b which are located at two opposite ends of the limiting groove 2556, and the first limiting end 2556a is closer to the base 23 relative to the second limiting end 2556 b; when the side support is in a flattened state relative to the base 23, the limiting pin 243 is positioned at the first limiting end 2556a; when the side support is in a bent state relative to the base 23, the limiting pin 243 is positioned at the second limiting end 2556b. Specifically, the limiting groove 2556 is disposed on a side of the connecting member 255 near the base 23, the first limiting end 2556a is closer to the base 23 than the second limiting end 2556b, and the first limiting end 2556a is closer to the corresponding side supporting member than the second limiting end 2556b. In this embodiment, the connecting member 255 includes a rectangular connecting plate 2550, a guiding portion disposed at one end of the connecting plate 2550, and a sliding assisting portion disposed at the other end of the connecting plate 2550, the second switching portion 2514 of the rotating member 251 is rotatably connected to the guiding portion of the connecting member 255, and the sliding portion 2533 of the driving member 253 is slidably connected to the sliding assisting portion of the connecting member 255. The first shaft hole 2553 is disposed at the guiding portion, the connecting piece 255 is provided with a guiding chute 2554, the guiding chute 2554 penetrates through opposite side surfaces of the connecting piece 255, and the guiding rail 2533a of the sliding portion 2533 slidably penetrates through the guiding chute 2554. Specifically, one end of the front surface of the connecting plate 2550, which is far away from the side of the rotating member 251, is provided with two mutually spaced lugs 2552, a first space for accommodating the second adapter 2514 is enclosed between the two lugs 2552, and the first shaft hole 2553 penetrates through the two lugs 2552 along the length direction of the connecting plate 2550; the other end of the front surface of the connecting plate 2550 is provided with two mutually-spaced auxiliary sliding blocks 2555, a second space for accommodating the sliding part 2533 is defined between the two auxiliary sliding blocks 2555, and a guide chute 2554 is arranged on one side, facing the second space, of the auxiliary sliding blocks 2555. Specifically, the limiting groove 2556 is disposed on the lug 2552 at the end of the connecting plate 2550, the opposite ends of the lug 2552 extend to the opposite sides of the connecting plate 2550 respectively, the first shaft hole 2553 is disposed at one end of the lug 2552 away from the base 23, and the limiting groove 2556 is disposed at one end of the lug 2552 close to the base 23; the limiting groove 2556 is inclined relative to the axis of the first shaft hole 2553, the first limiting end 2556a is away from the connecting plate 2550 compared with the second limiting end 2556b, and the first limiting end 2556a is away from the axis of the first shaft hole 2553 compared with the second limiting end 2556b.

In some embodiments, the second shaft hole 2318 on the base 23 and the second shaft 2536 on the transmission 253 can be interchanged; such as: a second shaft hole may be formed in the rotation portion 2531 along an axial direction thereof, and a second rotation shaft may be disposed on the first end surface 2314 of the first seat 231 facing the third seat 235, and one end of the second rotation shaft remote from the first seat 231 may be rotatably inserted into the second shaft hole.

In some embodiments, the guide rail 2533a on the driver 253 and the guide rail 2554 on the connector 255 can be interchanged; such as: guide sliding grooves are respectively arranged on two opposite sides of the sliding part 2533 of the transmission piece 253, guide sliding rails are arranged on the side surface, facing the second space, of the auxiliary sliding block 2555 of the connecting piece 255, and the guide sliding rails are slidably inserted into the guide sliding grooves.

Referring to fig. 3-19, when the rotating shaft device 22 is assembled, the first connection portions 2512 of the two rotating members 251 are respectively disposed between the first base 231 and the second base 233, so that two second circular arc rails 2511 of one first connection portion 2512 are respectively rotatably inserted into one second circular arc groove 234 of the first base 231 and one second circular arc groove 234 of the second base 233, and two second circular arc rails 2511 of the other first connection portion 2512 are respectively rotatably inserted into the other second circular arc groove 234 of the first base 231 and the other second circular arc groove 234 of the second base 233; the two transmission parts 253 are respectively arranged at one end of the first seat 231, which is away from the second seat 233, so that the second rotating shafts 2536 of the two transmission parts 253 are respectively and rotatably inserted into the two second shaft holes 2318 of the first seat 231; specifically, the first connection post 281 and the first positioning post 282 are respectively engaged with the first connection hole 2316 and the first positioning hole 2317 of the first seat 231 from the back of the first seat 231, the second connection post 284 and the second positioning post 285 are respectively engaged with the second connection hole 2336 and the second positioning hole 2337 of the second seat 233 from the back of the second seat 233, and the two locking members, such as screws, respectively pass through the first connection hole 2316 and the second connection hole 2336 to be locked to the first connection hole 2812 and the second connection hole 2842, so that the first seat 231 and the second seat 233 are respectively fixedly connected to the back cover 28; the two connecting pieces 255 are respectively arranged on two opposite sides of the back cover 28, so that the second switching part 2514 of one rotating piece 251 is arranged between the two lugs 2552 of one connecting piece 255, the second switching part 2514 of the other rotating piece 251 is arranged between the two lugs 2552 of the other connecting piece 255, and the two first rotating shafts 2551 are respectively penetrated into the first shaft holes 2553 of the two connecting pieces 255 and the second shaft holes 2514a of the two rotating pieces 251; the guide sliding rails 2533a of the two transmission pieces 253 are respectively inserted into the guide sliding grooves 2554 of the two connecting pieces 255 in a sliding manner; the first circular arc rails 242 of the first side supporting member 241 and the second side supporting member 245 are respectively inserted into the two first circular arc grooves 232 of the third base 235, the first side supporting member 241 and the second side supporting member 245 are disposed on the front surfaces of the two connecting members 255, the limiting pins 243 of the first side supporting member 241 and the second side supporting member 245 are respectively inserted into the limiting grooves 2556 of the two connecting members 255, the third connecting post 286 and the third positioning post 287 are respectively inserted into the third connecting hole 2356 and the third positioning hole 2357 from the back surface of the third base 235, and the locking member such as a screw penetrates through the third connecting hole 2356 to be locked in the third connecting hole 2862, so that the third base 235 is fixedly connected to the back cover 28.

The rotation axis between the rotation member 251 and the base 23 is parallel to the rotation axis between the first side support 241 and the second side support 245 and the base 23, respectively; the rotation axis between the rotation member 251 and the base 23 is parallel to the rotation axis between the transmission member 253 and the base 23; the axis of rotation between the rotator 251 and the base 23 is parallel to the axis of the stopper pin 243. The first side supporting piece 241 and the second side supporting piece 245 are in a flattened state, the front surface of the first side supporting plate 2411 is coplanar with the front surface of the second side supporting plate 2451, the first circular arc rail 242 is rotatably accommodated in the corresponding first circular arc groove 232, the second circular arc rail 2511 is rotatably accommodated in the corresponding second circular arc groove 234, and the two limiting pins 243 are respectively limited at the first limiting ends 2556a of the two limiting grooves 2556; when the first side supporting piece 241 and the second side supporting piece 245 are in the folded state, the two limiting pins 243 are respectively limited at the second limiting ends 2556b of the two limiting grooves 2556.

When the connecting piece 255 drives the rotating piece 251 to rotate relative to the base 23, the driving piece 253 rotates relative to the base 23, and the driving piece 253 slides relative to the connecting piece 255, so that the first side supporting piece 241 and the second side supporting piece 245 rotate respectively relative to the base 23, and the first side supporting piece 241 and the second side supporting piece 245 rotate respectively relative to the two connecting pieces 255 and slide, so as to achieve the purpose that the first side supporting piece 241 and the second side supporting piece 245 are bent or unfolded. Specifically, the connection member 255 rotates relative to the base 23 to drive the rotation member 251 to rotate relative to the base 23 and the second circular arc groove 234 through the second circular arc rail 2511, the rotation member 251 rotates relative to the corresponding connection member 255 and the first shaft hole 2553 through the first rotation shaft 2551, the transmission member 253 rotates relative to the base 23 and the second shaft hole 2318 through the second rotation shaft 2536, the transmission member 253 slides relative to the corresponding connection member 255 and the guide chute 2554 through the guide rail 2533a, the first side support member 241 and the second side support member 245 rotate relative to the base 23 and the first circular arc groove 232 through the first circular arc rail 242, and the two limiting pins 243 slide in the corresponding limiting grooves 2556 and rotate to achieve mutual bending or mutual unfolding of the first side support member 241 and the second side support member 245.

Referring to fig. 10-31, when the rotating shaft device 22 is folded from the flattened state, one of the connecting pieces 255 is folded toward the other connecting piece 255 relative to the base 23, the one connecting piece 255 drives the second arc rail 2511 of the rotating piece 251 to rotate in the second arc groove 234 of the base 23, the one connecting piece 255 drives the driving piece 253 to rotate relative to the base 23 along the corresponding second rotating shaft 2536, and the guiding rail 2533a of the driving piece 253 slides in the guiding chute 2554; the first circular arc rail 242 of the first side support 241 rotates in the corresponding first circular arc groove 232 of the base 23, and the limiting pin 243 on the first side support 241 rolls from the first limiting end 2556a to the second limiting end 2556b in the corresponding limiting groove 2556, so as to drive the first side support 241 to rotate towards the second side support 245; bending the other connecting piece 255 relative to the base 23 towards one of the connecting pieces 255, wherein the other connecting piece 255 drives the second circular arc rail 2511 of the rotating piece 251 to rotate in the second circular arc groove 234 of the base 23, so that the two rotating pieces 251 are close to each other, the other connecting piece 255 drives the other transmission piece 253 to rotate relative to the base 23 along the corresponding second rotating shaft 2536, and the guide sliding rail 2533a of the other transmission piece 253 slides in the guide sliding groove 2554, so that the two transmission pieces 253 are close to each other; the first circular arc rail 242 of the second side support 245 rotates in the corresponding first circular arc groove 232 of the base 23, and the limiting pin 243 on the second side support 245 rolls from the first limiting end 2556a to the second limiting end 2556b in the corresponding limiting groove 2556, so as to drive the second side support 245 to rotate towards the first side support 241, thereby realizing that the first side support 241 and the second side support 245 are close to each other until the first side support 241 and the second side support 245 enclose a cross section into a water drop shape. In the above process, during the bending process of the first side supporting member 241 and the second side supporting member 245 relative to the base 23, the first circular arc rail 242 rotates out of the first circular arc groove 232, the second circular arc rail 2511 rotates out of the second circular arc groove 234, and the limiting pin 243 rolls from the first limiting end 2556a to the second limiting end 2556b of the corresponding limiting groove 2556.

In other usage modes, the two connecting pieces 255 can be rotated together in opposite directions, and each connecting piece 255 can rotate relatively to the corresponding second arc groove 234 of the base 23 through the second arc rail 2511 of the corresponding rotating piece 251, so as to drive the two rotating pieces 251 to rotate relative to the base 23 and draw close to each other; meanwhile, the two connecting pieces 255 respectively drive the two driving pieces 253 to rotate relative to the base 23, and the two driving pieces 253 respectively slide relative to the two connecting pieces 255, so that the two driving pieces 253 are close to each other, the first side supporting piece 241 and the second side supporting piece 245 respectively rotate relative to the base 23 through the first circular arc rail 242 and the first circular arc groove 232, and the limiting pin 243 rolls from the first limiting end 2556a to the second limiting end 2556b of the corresponding limiting groove 2556, so as to drive the first side supporting piece 241 and the second side supporting piece 245 to synchronously close to each other until the first side supporting piece 241 and the second side supporting piece 245 enclose a cross section into a water drop shape.

When the rotating shaft device 22 is unfolded from the completely bent state, one connecting piece 255 is unfolded away from the other connecting piece 255 relative to the base 23, the second circular arc rail 2511 of the rotating piece 251 is driven by the one connecting piece 255 to rotate in the second circular arc groove 234 of the base 23, the driving piece 253 is driven by the one connecting piece 255 to rotate relative to the base 23, and the guide sliding rail 2533a of the driving piece 253 slides in the guide sliding groove 2554; the first circular arc rail 242 of the first side support 241 rotates in the corresponding first circular arc groove 232 of the base 23, and the limiting pin 243 on the first side support 241 rolls from the second limiting end 2556b to the first limiting end 2556a of the corresponding limiting groove 2556, so as to drive the first side support 241 to rotate away from the second side support 245; the other connecting piece 255 is unfolded away from one connecting piece 255 relative to the base 23, the other connecting piece 255 drives the second arc rail 2511 of the rotating piece 251 to rotate in the second arc groove 234 of the base 23, so that the two rotating pieces 251 are far away from each other, the other connecting piece 255 drives the other transmission piece 253 to rotate relative to the base 23 along the corresponding second rotating shaft 2536, and the guide sliding rail 2533a of the other transmission piece 253 slides in the guide sliding groove 2554, so that the two transmission pieces 253 are far away from each other; the first circular arc rail 242 of the second side support 245 rotates in the corresponding first circular arc groove 232 of the base 23, and the limiting pin 243 on the second side support 245 rolls from the second limiting end 2556b to the first limiting end 2556a of the corresponding limiting groove 2556, so that the first side support 241 and the second side support 245 are mutually unfolded until the first side support 241 and the second side support 245 are in a flattened shape. In the above process, during the flattening process of the first side supporting member 241 and the second side supporting member 245 relative to the base 23, the first circular arc rail 242 is turned into the first circular arc groove 232, the second circular arc rail 2511 is turned into the second circular arc groove 234, and the limiting pin 243 rolls from the second limiting end 2556b to the first limiting end 2556a of the corresponding limiting groove 2556.

In other usage modes, the two connecting pieces 255 can be rotated together in a direction away from each other, and each connecting piece 255 drives the second arc rail 2511 of the rotating piece 251 to rotate relatively along the second arc slot 234 of the base 23, so as to drive the two rotating pieces 251 to rotate relatively to the base 23 and away from each other; meanwhile, the two connecting pieces 255 respectively drive the two transmission pieces 253 to rotate relative to the base 23, and the two transmission pieces 253 respectively slide relative to the two connecting pieces 255 so as to separate the two transmission pieces 253 from each other; the first side supporting piece 241 and the second side supporting piece 245 rotate relative to the base 23 through the first circular arc rail 242 and the first circular arc groove 232 respectively, the limiting pin 243 rolls from the second limiting end 2556b of the limiting groove 2556 to the first limiting end 2556a, and the first side supporting piece 241 and the second side supporting piece 245 are driven to synchronously move away from each other until the first side supporting piece 241 and the second side supporting piece 245 are flush. Referring to fig. 1-7, the installed rotating shaft device 22 is disposed between two frames 21, the connecting members 255 on opposite sides of the back cover 28 are respectively accommodated in the mounting slots 216 of the two frames 21, and the two connecting members 255 are respectively fixedly connected to the two frames 21. At this time, the front surfaces 211 of the two frames 21, the front surfaces of the first side supports 241, the front surfaces of the second side supports 245, and the front surfaces of the bases 23 are coplanar. The back of the flexible screen 30 is connected to the front 211 of the two frames 21 and the front of the rotating shaft device 22, specifically, the bendable region 31 faces the front of the rotating shaft device 22, and the two non-bendable regions 33 respectively face the front of the two frames 21. When the flexible screen 30 is in the flattened state, the front surface of the base 23 is flush with the front surfaces of the first side support 241 and the second side support 245, and the rotating shaft device 22 is kept in the flattened state; in addition, the limiting pins 243 are limited in the first limiting ends 2556a of the corresponding limiting grooves 2556, so that the rotating shaft device 22 can be prevented from being further unfolded to possibly damage the flexible screen 30; when the rotating shaft device 22 is in a bending state, the limiting pin 243 is limited at the second limiting end 2556b of the corresponding limiting groove 2556, so as to prevent the rotating shaft device 22 from being further bent to possibly damage the flexible screen 30.

Referring to fig. 20-30, when bending the electronic device 100, a bending force is applied to at least one of the two frames 21 of the electronic device 100, so that the connecting pieces 255 connected to the two frames 21 rotate in directions adjacent to each other, and bending of the hinge device 22 causes the bendable region 31 of the flexible screen 30 to bend along with the supporting mechanism 24. Specifically, if a bending force is applied to one of the frames 21, the one of the frames 21 drives the corresponding rotating member 251 to rotate relative to the base 23 toward the side close to the flexible screen 30, the second arc rail 2511 of the rotating member 251 rotates relative to the second arc slot 234 of the base 23, the connecting member 255 drives the driving member 253 to rotate relative to the base 23 along the corresponding second rotating shaft 2536, and the guiding rail 2533a of the driving member 253 slides in the guiding slot 2554; the first circular arc rail 242 of the first side support 241 rotates in the first circular arc groove 232 corresponding to the base 23, and the limiting pin 243 on the first side support 241 rolls from the first limiting end 2556a to the second limiting end 2556b so as to drive the first side support 241 to rotate towards the second side support 245; a bending force is applied to the other frame body 21, so that the other frame body 21 drives the corresponding rotating piece 251 to rotate towards one side close to the flexible screen 30 relative to the base 23, and the second arc rail 2511 of the rotating piece 251 and the second arc groove 234 of the base 23 relatively rotate, so that the two rotating pieces 251 are close to each other; the connecting piece 255 drives the transmission piece 253 to rotate relative to the base 23 along the corresponding second rotating shaft 2536, and the guide sliding rail 2533a of the transmission piece 253 slides in the guide sliding groove 2554 so as to enable the two transmission pieces 253 to be close to each other; the first circular arc rail 242 of the second side supporting member 245 rotates in the first circular arc groove 232 corresponding to the base 23, and the limiting pin 243 on the second side supporting member 245 rolls from the first limiting end 2556a to the second limiting end 2556b, so as to drive the first side supporting member 241 and the second side supporting member 245 to be close to each other, so that the rotating shaft device 22 is in a bending state; the bendable region 31 of the flexible screen 30 is bent along with the rotating shaft device 22 until the front surfaces of the two non-bending regions 33 of the flexible screen 30 are mutually attached, and the bendable region 31 is bent into a water drop shape, so that seamless folding of the electronic device 100 is realized.

In other bending modes of the electronic device 100, bending forces can be applied to the two frames 21 at the same time, and the two frames 21 respectively drive the two rotating assemblies 25 to rotate towards the side close to the flexible screen 30, and bending of the electronic device 100 can be achieved through the rotating shaft device 22.

When it is desired to flatten the electronic device 100, one of the frames 21 is pulled outward, so that the two rotating members 25 connected to the two frames 21 are rotated in directions away from each other. Specifically, an outward pulling force is applied to one of the frames 21 of the electronic device 100, where the one frame 21 drives the corresponding rotating member 251 to rotate relative to the base 23 toward a side far away from the flexible screen 30, the second circular arc rail 2511 of the rotating member 251 rotates relatively along the second circular arc slot 234 of the base 23, the connecting member 255 drives the driving member 253 to rotate relative to the base 23, the guiding rail 2533a of the driving member 253 slides in the guiding slot 2554, the first circular arc rail 242 of the first side support 241 rotates in the corresponding first circular arc slot 232, and the limiting pin 243 on the first side support 241 moves from the second limiting end 2556b to the first limiting end 2556a in the corresponding limiting slot 2556; applying an outward pulling force to the other frame body 21, wherein the other frame body 21 drives the corresponding rotating member 251 to rotate relative to the base 23 towards the side far away from the flexible screen 30, and the second arc rail 2511 of the rotating member 251 relatively rotates along the second arc groove 234 of the base 23, so that the two rotating members 251 are far away from each other; the connecting piece 255 drives the transmission piece 253 to rotate relative to the base 23, and the guide sliding rail 2533a of the transmission piece 253 slides in the guide sliding groove 2554, so that the two transmission pieces 253 are far away from each other; the first circular arc rail 242 of the second side supporting member 245 rotates in the corresponding first circular arc groove 232, and the limiting pin 243 on the second side supporting member 245 moves from the second limiting end 2556b to the first limiting end 2556a in the corresponding limiting groove 2556, so that the two rotating components 25 synchronously rotate relative to the base 23 to move away from each other, and the first side supporting member 241 and the second side supporting member 245 are driven to move away from each other to be flattened, so that the rotating shaft device 22 is unfolded, and the bendable region 31 of the flexible screen 30 is unfolded along with the rotating shaft device 22 until the flexible screen 30 is flattened.

In other bending modes of the electronic device 100, an outward pulling force can be applied to the two frames 21 at the same time, and the two frames 21 respectively drive the two rotating assemblies 25 to rotate relative to the side far away from the flexible screen 30, and the electronic device 100 can be unfolded through the rotating shaft device 22.

The rotating shaft device 22 of the electronic equipment 100 is bent or unfolded through the rotating assembly 25 and the supporting mechanism 24, and then, when the rotating shaft device 22 is in a bending state, the limiting pin 243 is limited at the second limiting end 2556b of the corresponding limiting groove 2556, so that the rotating shaft device 22 is prevented from being further bent to possibly damage the flexible screen 30; when the rotating shaft device 22 is in the flattened state, the limiting pins 243 are limited at the first limiting ends 2556a of the corresponding limiting grooves 2556, so that the rotating shaft device 22 is prevented from being further unfolded to possibly damage the flexible screen 30; in addition, the structure of the rotating shaft device 22 is firm, and the overall strength of the electronic device 100 is improved.

As shown in fig. 31, the structure of the rotating shaft device 22a in another embodiment of the present application is similar to that of the rotating shaft device 22 in one of the above embodiments, except that the rotating shaft device 22a is added with a synchronous mechanism based on the rotating shaft device 22, specifically, two opposite sides of the base 23 are respectively provided with a side supporting member and a rotating assembly 25, that is, two opposite sides of the base 23 are respectively provided with a first side supporting member 241 and a second side supporting member 245, the first side supporting member 241 is connected with the base 23 through one rotating assembly 25, and the second side supporting member 245 is connected with the base 23 through the other rotating assembly 25; the rotating device 22 further includes a synchronizing mechanism 27, wherein the synchronizing mechanism 27 is disposed between the transmission members 253 of the two rotating assemblies 25, and rotation of one transmission member 253 relative to the base 23 drives the other transmission member 253 to synchronously rotate relative to the base 23 through the synchronizing mechanism 27, so as to realize synchronous folding or synchronous flattening of the first side supporting member 241 and the second side supporting member 245. In this embodiment, the synchronizing mechanism 27 is a gear assembly disposed between two transmission members 253, and the two transmission members 253 realize synchronous rotation through the gear assembly; specifically, the synchronizing mechanism 27 includes a first gear 271 provided on the outer peripheral surface of the rotating portion 2531 and at least two second gears 273 that intermesh, the two second gears 273 intermesh with the first gears 271 of the two transmitting members 253, respectively.

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

Claims (10)

1. A spindle assembly, the spindle assembly comprising:

a base;

the support mechanism comprises a side support piece, and the side support piece is rotationally connected with the base through the cooperation of a first circular arc rail and a first circular arc groove; and

The rotating assembly comprises a rotating piece and a connecting piece, the rotating piece is rotationally connected with the base through the cooperation of a second circular arc rail and a second circular arc groove, and one end of the rotating piece, which is far away from the base, is rotationally connected with the connecting piece;

The connecting piece and the side supporting piece are connected in a matched rolling way through a limiting groove and a limiting pin; the axial leads of the first arc groove, the axial leads of the second arc groove, the axial leads of the limit lock and the rotating shaft between the rotating piece and the connecting piece are parallel to each other.

2. The spindle assembly of claim 1 wherein said spacing groove is located on a side of said connector adjacent said base, said spacing groove is inclined relative to an axis of said first arcuate groove, said spacing groove includes first and second spacing ends at opposite ends thereof, said first spacing end being closer to said base than said second spacing end, said spacing pin being located at said first spacing end when said side support is in a flattened condition relative to said base; when the side supporting piece is in a bending state relative to the base, the limiting pin is positioned at the second limiting end.

3. The rotating shaft device according to claim 1, wherein the base is provided with a first circular arc groove, and a side of the side support member, which is close to the base, is provided with a first circular arc rail; the base is provided with a second arc groove, and one end of the rotating piece, which is far away from the side supporting piece, is provided with a second arc rail.

4. A spindle apparatus according to claim 3, wherein the side supporting member includes a supporting plate and a connecting portion protruding from one side of the supporting plate, and the first circular arc rail is provided at the connecting portion; the rotating piece comprises a first switching part and a second switching part which are positioned at two opposite ends of the rotating piece, the second arc rail is arranged on the first switching part, and the second rotating part is rotationally connected with the connecting piece.

5. The rotary shaft device according to claim 4, wherein the connecting piece and the second adapting portion are rotatably connected through cooperation of a first rotary shaft and a first shaft hole, and an axis line of the first rotary shaft is parallel to an axis line of the first circular arc groove.

6. The rotating shaft device according to claim 1, wherein the connecting piece is provided with a lug, the limit groove is provided with the lug, and the limit pin is arranged on one side of the side supporting piece, which is close to the base.

7. The rotary shaft device according to claim 1, wherein the rotary assembly further comprises a transmission member, the transmission member comprises a rotary part and a sliding part at two opposite ends thereof, the rotary part and the base are rotatably connected through cooperation of a second rotary shaft and a second shaft hole, the sliding part is slidably connected with the connecting member, and an axis of the second rotary shaft is parallel to an axis of the first circular arc groove.

8. The apparatus according to claim 1, wherein the base is provided with one side support member and one rotation member on opposite sides thereof, and the apparatus further comprises a synchronizing mechanism disposed between the transmission members of the two rotation members, wherein rotation of one transmission member relative to the base drives the other transmission member to synchronously rotate relative to the base via the synchronizing mechanism.

9. A folding casing, characterized in that the folding casing comprises a rotating shaft device according to any one of claims 1-8 and two frames, wherein the rotating shaft device is positioned between the two frames, and the two frames are respectively connected to two opposite sides of the rotating shaft device.

10. An electronic device comprising a flexible screen and the folding housing of claim 9, wherein the flexible screen is disposed on the folding housing.