CN117404386A - Rotating shaft device, folding shell and electronic equipment - Google Patents

Abstract

The invention provides a rotating shaft device, which comprises a base, a rotating mechanism, a connecting rod piece and a pushing piece, wherein the rotating mechanism comprises a rotating piece and a connecting piece, one end of the rotating piece is rotationally connected with the base, and one end of the rotating piece far away from the base is rotationally connected with the connecting piece; the connecting rod piece is rotationally connected to the base, one end of the connecting rod piece, which is far away from the base, is slidingly connected to the connecting piece, and the rotation axis between the connecting rod piece and the base is parallel to the rotation axis between the rotating piece and the base; one of the link member and the connecting member is provided with a cam surface, and the pushing member is connected to the other of the link member and the connecting member, and slidably pushes against the cam surface to enable the rotation shaft device to be positioned in a fully flattened state, a hovering state, or a fully folded state. The application also provides a folding shell with a rotating shaft device and electronic equipment.

Description

Rotating shaft device, folding shell and electronic equipment

Technical Field

The invention relates to the field of electronic equipment, 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

At present, a folding electronic product with a bendable flexible display screen is more and more popular among people, and the folding electronic product in the prior art comprises two adjacent frame bodies, a rotating shaft device connected between the two frame bodies, and the bendable flexible display screen, wherein the bendable flexible display screen is covered on the frame bodies and the rotating shaft device. The positioning of the flattened state, the hovering state and the folded state of the folded electronic product in the prior art is generally realized by damping torsion and/or friction resistance of friction plates among cams which are mutually propped and matched with the rotating shaft device; however, due to the small size of the cam, the cam is easy to wear, the hovering state of the folding electronic product is affected, and the length of the rotating shaft in the folding axis direction of the rotating shaft mounting shaft is large due to the cam and the friction plate, so that the miniaturization development of the folding screen mobile phone is not facilitated.

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 rotating mechanism, a connecting rod piece and a pushing piece, wherein the rotating mechanism comprises a rotating piece and a connecting piece, one end of the rotating piece is rotationally connected with the base, and one end of the rotating piece far away from the base is rotationally connected with the connecting piece; the connecting rod piece is rotationally connected with the base, one end of the connecting rod piece, which is far away from the base, is slidingly connected with the connecting piece, and the rotation axis between the connecting rod piece and the base is parallel to the rotation axis between the rotating piece and the base; one of the connecting rod piece and the connecting piece is provided with a cam surface, the pushing piece is connected with the other one of the connecting rod piece and the connecting piece, and the pushing piece can slidably push against the cam surface so that the rotating shaft device can be positioned in a complete flattening state, a hovering state or a complete folding state.

The application also provides a folding shell, it includes pivot device and two framework, pivot device is located two between the framework, two the framework connect respectively in pivot device's relative both sides.

The application also provides electronic equipment, the electronic equipment includes flexible screen and folding casing, flexible screen set up in on the folding casing.

The connecting piece of the rotating shaft device of the electronic equipment is in sliding propping with the cam surface through the propping piece, friction resistance is arranged between the propping piece and the cam surface, and friction resistance is arranged between the connecting piece and the connecting piece, so that the rotating shaft device can be stably positioned in a complete flattening state, a hovering state or a complete folding state; and the pushing part is arranged between the connecting piece and the connecting piece, so that the space of the rotating shaft device in the direction of the folding axis is not occupied, the size of the rotating shaft device in the direction of the folding axis is reduced, the occupation of the rotating shaft device is reduced, and the miniaturization development of electronic equipment is facilitated.

Drawings

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

Fig. 1 is a schematic perspective view of an electronic device according to an embodiment of the present 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 enlarged view of a perspective structure of the spindle assembly of FIG. 2;

FIG. 4 is an exploded perspective view of the spindle assembly of FIG. 3;

FIG. 5 is an exploded perspective view of the other view of the foldable module of FIG. 4;

FIG. 6 is a schematic perspective view of the folding assembly of FIG. 4;

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

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

FIG. 9 is an enlarged perspective view of another view of the folding assembly of FIG. 8;

FIG. 10 is a further exploded perspective view of the folding assembly of FIG. 8;

FIG. 11 is a further exploded perspective view of the folding assembly of FIG. 9;

FIG. 12 is an enlarged perspective view of the connecting member, link member and pushing member of FIG. 10;

FIG. 13 is a schematic perspective view of the connecting member, link member and pushing member of FIG. 12 from another perspective;

FIG. 14 is a perspective cross-sectional view of the folding assist assembly of FIG. 6;

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

FIG. 16 is a schematic perspective view of the folded housing of FIG. 2 in a hover state;

FIG. 17 is a schematic perspective view of the invagination assembly of FIG. 16 in a hover state;

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

FIG. 19 is a perspective cross-sectional view of the folding assist assembly of FIG. 18;

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

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

FIG. 22 is a perspective cross-sectional view of the folding assist assembly of FIG. 21;

fig. 23 is a schematic cross-sectional view of the fold-assist assembly of fig. 22.

The main reference numerals illustrate: 100. an electronic device; 20. folding the shell; 21. a frame; 30. a flexible screen; 31. a bendable region; 33. a non-bending region; 40. a folding device; 41. a folding assisting component; 42. a bendable assembly; 421. a middle support; 4210. a first support plate; 4212. a first connection region; 4218. a back cover; 4219. a connection part; 423. a side support; 4230. a side support bar; 4232. a second connection region; 4233. a first connection portion; 4234. a rotating groove; 4236. a second connecting portion; 4237. an adjustment tank; 4237a, a first positioning segment; 4237b, a second positioning segment; 44. a base; 440. a receiving groove; 442. an arc groove; 443. positioning holes; 445. a positioning plate; 4451. a positioning block; 4453. a positioning groove; 4455. a clearance groove; 45. a rotating mechanism; 450. a rotating member; 451. a connecting shaft; 452. a first rotating part; 4522. arc rail; 453. a second rotating part; 454. a first connecting cylinder; 455. a connecting piece; 4550. a guide groove; 4551. a first connection portion; 4552. a receiving groove; 4553. an avoidance groove; 4554. a second connecting portion; 4555. a fixing part; 4556. a rotating rail; 4557. a through groove; 4558. a positioning groove; 456. a second connecting cylinder; 46. a linkage mechanism; 461. a rotating shaft; 4610. a shaft body; 4612. a connecting cap; 4613. a positioning part; 462. a link member; 4620. a guide rail; 4621. a drive gear; 4622. a first sleeve; 4623. a link body; 4624. a socket hole; 4625. a connecting rod; 4626. a first limiting surface; 4627. the second limiting surface; 4628. an adjusting shaft; 463. a cam surface; 4632. a first positioning surface; 4634. a second positioning surface; 4636. a hover damping surface; 4637. a positioning groove; 464. a gear combination; 4642. a linkage gear; 4644. a rotation shaft; 467. a fixing member; 4671. a connecting cylinder; 4672. a first shaft hole; 4673. a fixed block; 4674. a positioning part; 4675. a damping mechanism; 4676. a connection hole; 4677. a fixing hole; 468. a positioning piece; 4682. a second shaft hole; 4684. a third shaft hole; 4685. positioning the bulge; 473. a pushing member; 475. a butt part; 4752. an elastic arm; 4754. a top sheet; 4758. an arc surface; 477. a positioning part; 4771. a first clamping piece; 4773. a second clamping piece; 4774. a clamping groove; 4775. positioning the bulge; 4755. bending the sheet; 4756. an inclined plate; 4757. and a connecting sheet.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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 that can be used to practice the present application. Directional terms referred to in this application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., are merely directions referring to the attached drawings, and thus, directional terms are used for better, more clear description 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 terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1 to 9, 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 folding housing 20 includes two frames 21 and a rotating shaft device 40 located between the two frames 21, opposite sides of the rotating shaft device 40 are respectively connected to the two frames 21, the two frames 21 realize folding or flattening through the rotating shaft device 40, and the flexible screen 30 can be folded or flattened along with the folding housing 20. The flexible screen 30 includes a bendable region 31 corresponding to the rotating shaft device 40, and two non-bending regions 33 connected to two opposite sides of the bendable region 31, wherein the back sides of the two non-bending regions 33 of the flexible screen 30 are respectively connected to the front sides of the two frames 21, the back sides of the bendable region 31 are attached to the front sides of the rotating shaft device 40, the rotating shaft device 40 is used for supporting the bendable region 31 of the flexible screen 30, the rotating shaft device 40 can be bent or flattened, the flexible screen 30 can be bent or flattened along with the bending or flattening of the rotating shaft device 40, and the bendable region 31 can be bent to form a U shape or a drop shape or other shapes. In this embodiment, the bendable region 31 can be bent into a drop shape. The bendable region 31 of the flexible screen 30 can bend or flatten with the rotation axis device 40. 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 rotating shaft device 40 comprises a folding assisting component 41 and a bendable component 42 connected with the folding assisting component 41, and the folding assisting component 41 comprises a base 44, a rotating mechanism 45 and a linkage mechanism 46; the rotating mechanism 45 includes a rotating member 450 and a connecting member 455, wherein one end of the rotating member 450 is rotatably connected to the base 44, and one end of the rotating member 450 remote from the base 44 is rotatably connected to the connecting member 455. The linkage mechanism 46 comprises a link member 462 and a gear assembly 464, the link member 462 is rotatably connected to the base 44 through a rotation shaft 461, one end of the link member 462 away from the base 44 is slidably connected to the connecting member 455, and the rotation axis between the link member 462 and the base 44, the rotation axis between the rotation member 450 and the base 44, and the rotation axis between the rotation member 450 and the connecting member 455 are parallel to each other; the folding assembly 41 further includes a push member 473, one of the link member 462 and the connector 455 being provided with a cam surface, the push member 473 being connected to the other of the link member 462 and the connector 455, the push member 473 slidably pushing against the cam surface to enable the rotary shaft device 40 to be positioned in the fully flattened state, the hovering state, or the fully folded state. In this embodiment, the pushing member 473 is connected to the connecting member 455, and a cam surface 463 is provided on a side of the connecting rod member 462 facing the pushing member 473; as the link member 462 slides relative to the connector 455, the abutment 473 slidably abuts the cam surface 463 to enable the spindle device 40 to assume a fully flattened state, a hovering state, or a fully folded state. The bendable assembly 42 comprises a middle support 421 and two side support 423 connected to opposite sides of the middle support 421, wherein the middle support 421 is connected to the front surface of the base 44, and the two side support 423 are respectively disposed on opposite sides of the base 44. The folding assembly 41 includes two rotating mechanisms 45, wherein one end of the rotating member 450 of one rotating mechanism 45 away from the connecting member 455 is rotatably connected to one side of the base 44, and one end of the rotating member 450 of the other rotating mechanism 45 away from the connecting member 455 is rotatably connected to the opposite side of the base 44. The linkage mechanism 46 comprises two rotating shafts 461, two connecting rod pieces 462 and a gear combination 464 positioned between the two connecting rod pieces 462, wherein the two rotating shafts 461 are respectively connected to two opposite sides of one end of the base 44, one connecting rod piece 462 is rotationally connected to one rotating shaft 461, the other connecting rod piece 462 is rotationally connected to the other rotating shaft 461, and the two connecting rod pieces 462 synchronously rotate relative to the base 44 through the gear combination 464; each connecting member 455 is provided with a pushing member 473, and a cam surface 463 is provided on a side of each connecting rod member 462 facing the corresponding pushing member 473, and the two pushing members 473 slidably abut against the two cam surfaces 463, respectively, to switch the rotating shaft device 40 between the fully flattened state, the hovering state, and the fully folded state.

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 connecting piece 455 of the rotating shaft device 40 of the electronic apparatus 100 of the present invention is slidably abutted against the cam surface 463 by the abutment member 473 and the corresponding connecting piece 462, and there is frictional resistance between the abutment member 473 and the cam surface 463, and there is frictional resistance between the connecting piece 462 and the connecting piece 455, and these frictional resistances enable the rotating shaft device 40 to be stably positioned in the fully flattened state, the hovering state or the fully folded state; in addition, the pushing member 473 is disposed between the link member 462 and the connecting member 455, and does not occupy the space of the hinge device 40 in the direction of the folding axis, so that the dimension of the hinge device 40 in the direction of the folding axis is reduced, so as to reduce the occupation of the hinge device 40, which is beneficial to the miniaturization development of the electronic device 100.

As shown in fig. 3 to 9, at least one folding assisting component 41 is disposed on the back of the bendable component 42, in this embodiment, the number of folding assisting components 41 is two, and the two folding assisting components 41 are respectively disposed on two opposite ends of the back of the bendable component 42. One side supporting piece 423 is movably connected to the rotating mechanism 45 and the connecting rod piece 462 on one side of the base 44, the other side supporting piece 423 is movably connected to the rotating mechanism 45 and the connecting rod piece 462 on the other side opposite to the base 44, the back surface of the bendable region 31 of the flexible screen 30 is attached to the front surface of the middle supporting piece 421 and the front surface of the side supporting piece 423, and the back surfaces of the two bendable regions 31 of the flexible screen 30 are respectively connected to the front surfaces of the two frames 21. Wherein one link member 462 rotates relative to the base 44 about the axis of the corresponding rotating shaft 461 and drives the other link member 462 to synchronously rotate relative to the base 44 about the axis of the corresponding rotating shaft 461 through the gear combination 464, that is, the two link members 462 can synchronously unfold or synchronously bend, the two link members 462 synchronously slide relative to the two connecting members 455 respectively, and the two cam surfaces 463 slide relative to the two pushing members 473 respectively, so as to realize synchronous folding or synchronous unfolding of the rotating shaft device 40, and the bendable region 31 of the flexible screen 30 is folded or unfolded together with the rotating shaft device 40.

Referring to fig. 3-5, the middle supporting member 421 includes a first supporting plate 4210 having a bar shape and a back cover 4218 connected to a back surface of the first supporting plate 4210, and a first connecting area 4212 positioned on a front surface of the folding assisting component 41 is disposed on a back surface of the first supporting plate 4210. In this embodiment, opposite ends of the back surface of the first support plate 4210 are respectively provided with a first connection area 4212, and the two folding assisting assemblies 41 are respectively connected to the two first connection areas 4212. The back cover 4218 is a bar frame, the front surface of the back cover 4218 is provided with a connecting groove 4219, and the back surfaces of the bases 44 of the two folding-assisting assemblies 41 are respectively connected to two opposite ends of the connecting groove 4219 of the back cover 4218. The connecting members 455 are rotatably coupled to the corresponding side supporting members 423 by engagement of a rotation groove provided in one of the side supporting members 423 and the connecting members 455 with a rotation rail provided in the other of the side supporting members 423 and the connecting members 455. In this embodiment, the connecting member 455 has two rotating rails 4556 at opposite ends, and the side supporting member 423 has rotating slots 4234, and each rotating rail 4556 is rotatably received in a corresponding rotating slot 4234, so that the side supporting member 423 is rotatably connected to the connecting member 455. The side support 423 includes a side support bar 4230, the side support bar 4230 being a rectangular support piece, and a second connection area 4232 of a rear surface of the side support bar 4230. In this embodiment, the side support bar 4230 is provided with two second connection areas 4232, the two second connection areas 4232 are located at opposite ends of the side support bar 4230, and the second connection areas 4232 are used for connecting the corresponding rotation mechanism 45 and the link member 462. Each second connecting region 4232 includes a pair of first connecting portions 4233 and second connecting portions 4236 spaced apart from each other, the first connecting portions 4233 are disposed on a side away from the middle supporting member 421, and each second connecting portion 4236 is located between the corresponding pair of first connecting portions 4233. Each pair of first connecting portions 4233 is provided with a pair of rotation grooves 4234 in the shape of a circular arc, and the axes of the pair of rotation grooves 4234 are collinear. The link member 462 is movably coupled to the corresponding side support 423 through the engagement of the adjustment groove with an adjustment shaft having an axis parallel to the axial direction of the rotation shaft 461; the adjustment groove is provided in one of the side support 423 and the link 462, and the adjustment shaft is provided in the other of the side support 423 and the link 462. In this embodiment, the second connecting portion 4236 is provided with an arc-shaped adjusting groove 4237, and the middle portion of the adjusting groove 4237 is bent to a side far from the side supporting bar 4230. The adjusting groove 4237 includes a first positioning section 4237a and a second positioning section 4237b at opposite ends thereof, the first positioning section 4237a is closer to the middle supporting member 421 than the second positioning section 4237b, one end of the connecting rod member 462 away from the rotating shaft 461 is provided with an adjusting shaft 4628, and the adjusting shaft 4628 is rotatably and slidably inserted into the adjusting groove 4237. The rotating shaft 461 comprises a shaft body 4610 and a connecting cap 4612, the connecting cap 4612 is connected to one end of the shaft body 4610, the shaft body 4610 is provided with a positioning portion 4613, and the connecting rod 462 is fixedly connected with the rotating shaft 461 through the positioning portion 4613. In this embodiment, the positioning portion 4613 is a positioning surface provided on the outer wall of the shaft 4610.

In some embodiments, the connecting members 455 are provided at opposite ends thereof with rotating grooves, respectively, and the side supporting members 423 are provided with rotating rails rotatably received in the corresponding rotating grooves such that the side supporting members 423 are rotatably connected to the connecting members 455.

As shown in fig. 8 to 13, the rotating member 450 includes a first rotating portion 452 and a second rotating portion 453 provided at opposite ends thereof, the first rotating portion 452 being rotatably coupled to the base 44, and the second rotating portion 453 being rotatably coupled to the connecting member 455 through the connecting shaft 451. The base 44 and the first rotating portion 452 are rotatably coupled to each other by a circular arc groove having an axis collinear with the axis of rotation between the rotating member 450 and the base 44, the circular arc groove being provided in one of the base 44 and the first rotating portion 452, and the circular arc rail being provided in the other of the base 44 and the first rotating portion 452. In this embodiment, two opposite sides of the front surface of the base 44 are respectively provided with a receiving groove 440, the two receiving grooves 440 are respectively used for receiving the first rotating portions 452 of the two rotating members 450, the two opposite inner side surfaces of the base 44 opposite to the receiving grooves 440 are respectively provided with an arc groove 442, the two arc grooves 442 are coaxial, and opposite ends of the arc grooves 442 respectively penetrate through the front surface of the base 44. The first rotating portion 452 is provided with a circular arc rail 4522 on opposite sides thereof, and the two circular arc rails 4522 are coaxial. When the first rotating portion 452 is accommodated in the corresponding accommodating groove 440, the two circular arc rails 4522 are respectively rotatably accommodated in the two circular arc grooves 442. The front surface of the base 44 is provided with a positioning hole 443, and the locking member is locked to the back cover after passing through the positioning hole 443, so that the base 44 is fixedly connected to the back cover. One end of the base 44 is convexly provided with a positioning plate 445, one end of the front surface of the positioning plate 445, which is close to the base 44, is provided with a positioning block 4451, and the positioning block 4451 can be, but is not limited to, a cylinder, a rectangular body or the like; the front surface of the positioning plate 445 is provided with two positioning grooves 4453 which are spaced apart from each other at one end far away from the base 44, and the middle part of the front surface of the positioning plate 445 is provided with two parallel avoidance grooves 4455, wherein the length direction of the avoidance grooves 4455 is parallel to the axial direction of the circular arc groove 442.

In some embodiments, the circular arc grooves on the base 44 and the circular arc rails on the first rotating portion 452 may be interchanged, specifically, two opposite inner sides of the receiving groove 440 of the base 44 are respectively provided with a circular arc rail, and the two circular arc rails are coaxial; the opposite sides of the first rotating portion 452 are respectively provided with an arc groove, the two arc grooves are coaxial, and when the first rotating portion 452 is accommodated in the corresponding accommodating groove 440, the two arc rails are respectively rotatably accommodated in the two arc grooves.

The end of the second rotating portion 453 remote from the first rotating portion 452 is rotatably connected to the first connecting portion 4551 of the connecting member 455, and the link member 462 is slidably connected to the second connecting portion 4554 of the corresponding connecting member 455. Specifically, a first connecting cylinder 454 is disposed at an end of the second rotating portion 453 away from the first rotating portion 452, the first connecting portion 4551 of the connecting member 455 is provided with a receiving slot 4552, and the first connecting cylinder 454 is rotatably received in the receiving slot 4552. The connecting piece 455 includes a second connecting cylinder 456 disposed at the first connecting portion 4551, the accommodating groove 4552 penetrates the second connecting cylinder 456 along a radial direction of the second connecting cylinder 456, the first connecting cylinder 454 and the second connecting cylinder 456 are mutually engaged, so that the first connecting cylinder 454 and the second connecting cylinder 456 are coaxial, and the connecting shaft 451 penetrates the inner cavity of the first connecting cylinder 454 and the inner cavity of the second connecting cylinder 456.

The abutment 473 comprises a resilient abutment portion 475, the cam surface 463 comprising a first positioning surface 463, a second positioning surface 463, and a hover damping surface 4636 connected between the first positioning surface 4632 and the second positioning surface 4634, the first positioning surface 4632 being closer to the base 44 than the second positioning surface 4634; when the propping portion 475 is propped against the first positioning surface 4632, the rotating shaft device 40 is in a completely flattened state; when the supporting portion 475 is supported against the second positioning surface 4634, the rotating shaft device 40 is in a fully folded state; when the abutment 475 abuts against the hover damping surface 4636, the spindle device 40 is in a hover state. In this embodiment, the cam surface 463 is disposed at an end of the link 462 away from the base 44, the pushing member 473 is connected to the second connecting portion 4554 of the connecting member 455, and the cam surface 463 slides with the link 462 relative to the connecting member 455, so that the pushing member 475 can slidably push against the first positioning surface 4632, the second positioning surface 4634 or the hover damping surface 4636.

In other embodiments, the cam surface 463 may also be provided on the second connecting portion 4554 of the connecting member 455, where the pushing member 473 is connected to an end of the connecting rod member 462 remote from the base 44, and the pushing member 473 slides with the connecting rod member 462 relative to the connecting member 455, so that the pushing member 475 can slidably push against the first positioning surface 4632, the second positioning surface 4634 or the hover damping surface 4636.

The link member 462 includes a first sleeve 4622, a link body 4623, and a link 4625 connected between the first sleeve 4622 and the link body 4623, in this embodiment, the link 4625 is an L-shaped rod, an outer circumferential surface of the first sleeve 4622 is connected to one end of the L-shaped rod, and one end of the link body 4623 is connected to an opposite end of the L-shaped rod. The first sleeve 4622 is sleeved on the shaft body 4610 and can rotate around the axis of the rotating shaft 461, the connecting rod 462 is slidably connected with the connecting member 455 through the cooperation of the guide groove and the guide rail, specifically, the end of the connecting rod 462 away from the first sleeve 4622 is slidably connected with the second connecting portion 4554 of the connecting member 455 through the cooperation of the guide groove and the guide rail, and the guide groove extends along the direction perpendicular to the rotating axis of the rotating member 450 and the base 44. The guide groove is provided in one of the connecting member 455 and the link member 462, and the guide rail is provided in the other of the connecting member 455 and the link member 462. In this embodiment, the second connecting portion 4554 is provided with a guide groove 4550, and the link body 4623 is provided with a guide rail 4620 slidably penetrating the guide groove 4550. Specifically, the second connecting portion 4554 of the connecting member 455 is provided with a through slot 4557, and opposite ends of the through slot 4557 are respectively penetrated through opposite side surfaces of the connecting member 455; the link body 4623 is disposed at an end of the link member 462 away from the base 44, the cam surface 463 is disposed on the link body 4623, the link member 462 is slidably inserted into the through slot 4557, the pushing member 473 is connected to the second connecting portion 4554 of the connecting member 455, and the pushing member 475 is accommodated in the through slot 4557 and pushes against the cam surface 463. In this embodiment, the second connecting portion 4554 of the connecting member 455 is provided with guide grooves 4550 on opposite sides of the through slot 4557, and the connecting rod body 4623 is provided with guide rails 4620 on opposite sides thereof, wherein when the connecting rod body 4623 is accommodated in the through slot 4557, the two guide rails 4620 are slidably inserted into the two guide rails 4620.

Optionally, the cam surface 463 is provided on a side of the link body 4632 facing away from the bendable member 42 at an end thereof remote from the first sleeve 4622, the hover damping surface 4636 is provided in a middle portion of the cam surface 463, the first positioning surface 4632 is provided on a side closer to the first sleeve 4622, and the second positioning surface 4634 is provided on a side remote from the first sleeve 4622. In this embodiment, the hover damping surface 4636 is parallel to the sliding direction of the link body 4623 relative to the connecting member 455. The first positioning surface 4632 is inclined with respect to the hover damping surface 4636, in particular, the first positioning surface 4632 is inclined from one side of the hover damping surface 4636 to the front face of the link body 4623; the second positioning surface 4634 is inclined with respect to the hover damping surface 4636, in particular the second positioning surface 4634 is inclined from the opposite other side of the hover damping surface 4636 to the front side of the link body 4623.

Optionally, the cam surface 463 is provided with a damping structure, in particular, the hover damping surface 4636, the first positioning surface 4632 and/or the second positioning surface 4634 are provided with the damping structure, which may be, but is not limited to, a damping protrusion, a damping roughened surface or a damping layer.

Optionally, the hover damping surface 4636 is provided with a plurality of positioning slots 4637, the plurality of positioning slots 4637 being arranged at intervals in a sliding direction parallel to the link member 462 relative to the connecting member 455, and the abutment portions 475 can be positioned in the plurality of positioning slots 4637, respectively, to enable the link member 462 to be folded to different angles relative to the base 44. By positioning the abutment 475 with the plurality of detents 4637, respectively, the angular extent of the folding of the link 462 relative to the base 44 can be, but is not limited to, between 110 degrees and 160 degrees, i.e., when the abutment 475 is positioned furthest from the detents 4637 of the first sleeve 4622, the folding angle of the link 462 relative to the base 44 is 110 degrees, and when the abutment 475 is positioned closest to the detents 4637 of the first sleeve 4622, the folding angle of the link 462 relative to the base 44 is 160 degrees. The folding angle of the link member 462 relative to the base 44 ranges from 10 degrees to 20 degrees as the abutment portion 475 slides from one of the detents 4637 to an adjacent other detent 4637.

Optionally, the connecting piece 455 is provided with a fixing portion 4555 at one side of the through slot 4557, and the pushing member 473 further includes a positioning portion 477 fixedly connected to the connecting piece 455; specifically, the positioning portion 477 is engaged with the fixing portion 4555. The abutment portion 475 includes a resilient arm 4752 connected to the positioning portion 477 and an abutment tab 4754 connected to the resilient arm 4752, the abutment tab 4754 slidably abutting the cam surface 463. The inner surface of the through groove 4557 is provided with a relief groove 4553, and the fixing portion 4555 is provided on one side of the relief groove 4553. Specifically, the fixing portion 4555 is a fixing bar provided on the side of the escape groove 4553, and the positioning portion 477 is fixedly connected to the fixing bar. When the positioning portion 477 is fixedly connected to the fixing portion 4555, the abutment portion 475 can be received in the avoidance groove 4553, and the abutment sheet 4754 is located at an end of the elastic arm 4752 away from the positioning portion 477. Specifically, the positioning portion 477 includes a first clamping piece 4771 and a second clamping piece 4773 connected to the first clamping piece 4771, the first clamping piece 4771 and the second clamping piece 4773 being clamped to the fixing portion 4555; so that the push member 473 is positioned at the connector 455. In this embodiment, the pushing member 473 is made of an elastic sheet by bending, specifically, the first clamping sheet 4771 is a rectangular sheet, the second clamping sheet 4773 is an L-shaped sheet disposed on one side of the first clamping sheet 4771, the first clamping sheet 4771 and the second clamping sheet 4773 together enclose a clamping groove 4774, and the fixing portion 4555 can be clamped in the clamping groove 4774. Optionally, at least one end of one side of the first clamping piece 4771 is provided with a second clamping piece 4773, in this embodiment, two opposite ends of one side of the first clamping piece 4771 are respectively provided with a second clamping piece 4773, and the first clamping piece 4771 and the two second clamping pieces 4773 jointly enclose a clamping groove 4774. The elastic arm 4752 and the two second holding pieces 4773 are located on the same side of the first holding piece 4771, the elastic arm 4752 includes a bending piece 4755 connected to the first holding piece 4771, an inclined piece 4756 connected to the abutting piece 4754, and a connecting piece 4757 connected between the bending piece 4755 and the inclined piece 4756, the bending piece 4755 is a semicircular piece, one side of the semicircular piece is connected to one side of the first holding piece 4771, the other side opposite to the semicircular piece is connected to one side of the connecting piece 4757, the connecting piece 4757 is substantially parallel to the sliding direction of the link body 4623 relative to the connecting piece 455, one side of the inclined piece 4756 is connected to one side of the connecting piece 4757 away from the bending piece 4755, and the inclined piece 4756 extends obliquely to one side away from the first holding piece 4771. The abutment sheet 4754 is an arc-shaped sheet curved to a side away from the first holding sheet 4771, the abutment sheet 4754 including an arc-shaped surface 4758 for abutting the cam surface 463; optionally, the arcuate face 4758 is provided with a damping structure.

Optionally, a positioning protrusion 4775 is disposed on a side of the first clamping plate 4771 away from the second clamping plate 4773, a positioning slot 4558 is disposed on a back surface of the connecting member 455, and the positioning protrusion 4775 can be clamped in the positioning slot 4558.

Alternatively, the first clamping piece 4771 and the second clamping piece 4773 may be connected to the fixing portion 4555 by, but not limited to, welding, gluing, or the like.

As shown in fig. 8-13, the outer peripheral wall of the first sleeve 4622 is provided with a driving gear 4621, in particular, the driving gear 4621 is located on the side of the first sleeve 4622 facing away from the link body 4623, the axis of the driving gear 4621 being collinear with the axis of the first sleeve 4622. In the present embodiment, the teeth of the driving gear 4621 are arranged in the circumferential direction of the first sleeve 4622 at a rotation angle of 90 degrees, that is, a quarter of the outer circumferential wall of the first sleeve 4622 is provided with the driving gear 4621. The first sleeve 4622 has a socket 4624, and the rotating shaft 461 is inserted into the socket 4624 to enable the first sleeve 4622 to be sleeved on the positioning portion 4613. The link member 462 includes a first stop surface 4626 and a second stop surface 4627; specifically, one end of the first sleeve 4622 is provided with a notch around the sleeve hole 4624, the first limiting surface 4626 and the second limiting surface 4627 are opposite end surfaces of the notch, and the first limiting surface 4626 is farther from the connecting rod body 4623 than the second limiting surface 4627.

The gear assembly 464 includes two interlocking gears 4642 and two rotating shafts 4644, and the two interlocking gears 4642 are respectively rotatably sleeved on the two rotating shafts 4644. The driving gears 4621 of the two link members 462 are respectively engaged with the two linking gears 4642.

The linkage mechanism 46 further comprises a fixing part 467, the fixing part 467 comprises two connecting cylinders 4671 and a fixing block 4673 connected between the two connecting cylinders 4671, each connecting cylinder 4671 is provided with a first shaft hole 4672 along the axial direction of the connecting cylinder 4671, and the two rotating shafts 461 can be respectively inserted into the first shaft holes 4672 of the two connecting cylinders 4671; the connecting tube 4671 has a positioning portion 4674 disposed on a side facing the connecting rod 462, and in this embodiment, the positioning portion 4674 is a positioning block protruding from the connecting tube 4671 on a side away from the fixing block 4673. The end of the connecting tube 4671 facing away from the positioning portion 4674 is provided with a damping mechanism 4675, and the damping mechanism 4675 may be, but is not limited to, a damping hole, a damping protrusion, a damping roughened surface, a damping layer, or the like. The side of the fixing block 4673 facing the gear assembly 464 is provided with two connecting holes 4676 spaced apart from each other, and the side of the fixing block 4673 facing the base 44 is provided with a fixing hole 4677.

The linkage mechanism 46 further comprises a positioning member 468, wherein the positioning member 468 is provided with two second shaft holes 4682 and two third shaft holes 4684, the two second shaft holes 4682 are positioned at opposite ends of the positioning member 468, and the two third shaft holes 4684 are positioned between the two second shaft holes 4682; positioning bulges 4685 are respectively arranged on two opposite sides of the middle part of the positioning piece 468, and arc surfaces are respectively arranged on two opposite ends of the positioning piece 468.

Referring to fig. 6-15, when assembling the folding assisting component 41, the first connecting cylinder 454 of one rotating member 450 is accommodated in the accommodating groove 4552 of one connecting member 455, and one connecting shaft 451 is inserted into the inner cavity of the first connecting cylinder 454 and the inner cavity of the second connecting cylinder 456; the first coupling cylinder 454 of the other rotary member 450 is received in the receiving groove 4552 of the other coupling member 455, and the other coupling shaft 451 is inserted into the inner cavity of the first coupling cylinder 454 and the inner cavity of the second coupling cylinder 456. The first rotating portions 452 of the two rotating members 450 are respectively accommodated in the two accommodating grooves 440 of the base 44, so that the two circular arc rails 4522 of each first rotating portion 452 are respectively accommodated in the corresponding two circular arc grooves 442. The two pushing members 473 are respectively connected to the two connecting members 455, specifically, the positioning portion 477 of each pushing member 473 is fixedly connected to the corresponding fixing portion 4555, that is, the first clamping sheet 4771 and the second clamping sheet 4773 are clamped to the fixing portion 4555, so that the positioning protrusion 4775 is clamped to the positioning slot 4558, and the pushing portion 475 is accommodated in the corresponding avoiding slot 4553. The shaft bodies 4610 of the two rotating shafts 461 are respectively inserted into the two first shaft holes 4672 of the fixing piece 467 until the connecting cap 4612 abuts against the end face of the connecting cylinder 4671, which is away from the positioning part 4674; the driving gears 4621 of the two connecting rod pieces 462 are respectively meshed with the two linkage gears 4642, the two rotating shafts 4644 are respectively penetrated into the inner cavities of the two linkage gears 4642, the two shaft bodies 4610 are respectively inserted into the sleeve connecting holes 4624 of the two first sleeves 4622, and one ends of the two rotating shafts 4644 are respectively inserted into the two connecting holes 4676 of the fixing piece 467; the positioning member 468 is sleeved on the two shaft bodies 4610 and the two rotating shafts 4644, specifically, the ends of the two shaft bodies 4610 facing away from the connecting cap 4612 are respectively inserted into the two second shaft holes 4682 of the positioning member 468, and the ends of the two rotating shafts 4644 facing away from the fixing member 467 are respectively connected to the two third shaft holes 4684 of the positioning member 468. The fixing member 467 is positioned on the positioning plate 445 of the base 44, specifically, the positioning block 4451 is clamped to the fixing hole 4677 of the fixing member 467, so that the two positioning protrusions 4685 of the positioning member 468 are clamped to the two positioning grooves 4453, and the two linkage gears 4642 are respectively accommodated in the two avoidance grooves 4455. The two link bodies 4623 are slidably received in the through slots 4557 of the two connecting members 455, respectively, such that the two guide rails 4620 of each link body 4623 are slidably inserted into the corresponding two guide slots 4550, respectively, each link body 4623 is rotatably connected to the base 44, and the two abutting portions 475 are elastically abutted against the first positioning surfaces 4632 of the two link members 462, respectively, such that the guide rails 4620 of the link members 462 abut against the inner surfaces of the guide slots 4550, and when the link bodies 4623 slide relative to the connecting members 455, there is a frictional resistance between the abutting portions 475 and the cam surfaces 463, and a frictional resistance between the guide rails 4620 and the inner surfaces of the guide slots 4550, such that the folding assisting component 41 is located in a fully flattened state, a hovering state, or a fully folded state.

When the folding assisting component 41 is in the completely flattened state, the two propping portions 475 respectively elastically prop against the first positioning surfaces 4632 of the two link members 462. When the folding-assisting component 41 is in the fully folded state, the two propping parts 475 respectively and elastically prop against the second positioning surfaces 4634 of the two link members 462. When the folding assisting component 41 is in a hovering state, the two propping parts 475 are respectively and elastically propped against the hovering damping surfaces 4636 of the two link members 462, that is, the propping sheets 4754 are respectively clamped into the corresponding positioning grooves 4637. During the folding of the fold-assist assembly 41 from the fully flattened state to the fully folded state, the abutment portion 475 slides from the first positioning surface 4632 to the second positioning surface 4634 via the hover damping surface 4636; during deployment of the fold-assist assembly 41 from the fully folded condition to the fully flattened condition, the abutment portion 475 slides from the second positioning surface 4634 to the first positioning surface 4632 via the hover damping surface 4636. During folding or flattening, the abutment 475 can be positioned on the first positioning surface 4632, the hover damping surface 4636, or the second positioning surface 4634, respectively, such that the folding assisting component 41 can maintain a fully flattened, hovered, or fully folded state.

When the rotating shaft device 40 is assembled, the bases 44 of the two folding assisting assemblies 41 are respectively arranged at the two connecting parts 4219 of the back cover 4218, the middle supporting piece 421 is arranged on the front surfaces of the two folding assisting assemblies 41, and the two first connecting areas 4212 are respectively connected with the corresponding positioning holes 443 through locking pieces; the two side supporting members 423 are disposed on opposite sides of the base 44, the two rotation rails 4556 of each connecting member 455 are respectively rotatably received in the corresponding pair of rotation slots 4234, and the adjustment shafts 4628 of the link members 462 are inserted into the corresponding adjustment slots 4237. When the two side supporting pieces 423 are in the completely flattened state, the adjusting shafts 4628 are positioned in the second positioning segments 4237b of the corresponding adjusting slots 4237, the positioning portions 4674 abut against the second limiting surfaces 4627, the abutting portions 475 abut against the first positioning surfaces 4632, and the front surfaces of the two side supporting pieces 423 and the front surface of the middle supporting piece 421 are coplanar, so as to prevent the side supporting pieces 423 from being bent reversely relative to the middle supporting piece 421. When the two side supporting pieces 423 are in a completely bent state, the adjusting shaft 4628 is located at the first positioning segment 4237a of the corresponding adjusting slot 4237, the positioning portion 4674 abuts against the first limiting surface 4626, the abutting portion 475 abuts against the second positioning surface 4634, and the front surfaces of the two side supporting pieces 423 and the middle supporting piece 421 enclose a water drop shape, so as to prevent the side supporting pieces 423 from being further bent relative to the middle supporting piece 421.

Referring to fig. 1-4, the installed rotating shaft device 40 is disposed between two frames 21, and the connecting members 455 on opposite sides of the rotating shaft device 40 are respectively and fixedly connected to the two frames 21. When the folded housing 20 is in the flattened state, the front surfaces of the two frames 21 and the front surface of the rotating shaft device 40 are coplanar, the back surfaces of the bendable regions 31 of the flexible screen 30 are connected to the front surface of the rotating shaft device 40, and the back surfaces of the two non-bending regions 33 are respectively connected to the front surfaces of the two frames 21.

Referring to fig. 1-4 and fig. 14-23, when the electronic device 100 is folded, a folding force is applied to at least one of the two frames 21 of the electronic device 100, so that the rotating mechanism 45 connected to the two frames 21 rotates in a direction towards each other, the folding of the rotating shaft device 40 is achieved through the two folding-assisting assemblies 41, and the bendable region 31 of the flexible screen 30 is folded along with the bendable assemblies 42. Specifically, if a bending force is applied to one of the frames 21, the one of the frames 21 drives the corresponding rotating mechanism 45 to rotate towards the side close to the flexible screen 30 relative to the base 44; the corresponding connecting rod 462 is driven to rotate along the axis of the rotating shaft 461 to the side close to the flexible screen 30 relative to the base 44, meanwhile, the guide rail 4620 of the connecting rod 462 slides in the guide groove 4550 of the corresponding connecting piece 455, the first sleeve 4622 of the connecting rod 462, the rotating shaft 461 and the driving gear 4621 rotate along the axis of the corresponding rotating shaft 461, the rotating driving gear 4621 drives the other driving gear 4621 to rotate through the gear combination 464, and the rotation of the other driving gear 4621 drives the corresponding rotating shaft 461, the first sleeve 4622 and the connecting rod body 4623 to rotate, so that the two connecting rod 462 of the linkage mechanism 46 synchronously draw close to each other; meanwhile, the guide rail 4620 of the link body 4623 slides along the corresponding guide groove 4550, so that after the abutting portion 475 is separated from the corresponding first positioning surface 4632, the abutting portion 475 slides relative to the hover damping surface 4636 until the abutting portion 475 is positioned to the second positioning surface 4634, until the two frames 21 of the electronic device 100 are synchronously folded to a fully folded state. In the process of bending the linkage mechanism 46, the first rotating portion 452 of the rotating member 450 rotates relative to the base 44 through the cooperation of the circular arc rail and the corresponding circular arc groove, the second rotating portion 453 of the rotating member 450 is rotationally connected with the corresponding connecting member 455 along the corresponding connecting shaft 451, the adjusting shaft 4628 rotates in the corresponding adjusting groove 4237 from the second positioning segment 4237b and slides to the first positioning segment 4237a, the two connecting rod members 462 rotate along the axis of the corresponding rotating shaft 461 respectively and are mutually closed, the connecting rod body 4623 slides relative to the corresponding abutting portion 475 to mutually closed the two side supporting members 423, the rotating shaft device 40 is in a bending state, and the bendable region 31 of the flexible screen 30 bends along with the rotating shaft device 40 until the bendable region 31 bends into a water drop shape. At this time, the abutment portion 475 and the second positioning surface 463 of the cam surface 463 abut against each other, and there is a frictional resistance between the guide rail 4620 and the inner surface of the corresponding guide slot 4550, so that the electronic apparatus 100 is kept in a folded state.

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 side supporting pieces 423 to rotate relative to the side close to the flexible screen 30, and the bending of the electronic device 100 can be realized through the rotating shaft device 40.

During bending of the electronic device 100, the electronic device 100 can be bent to a hovering state; specifically, when the two frame bodies 21 are synchronously rotated relative to the base 44 and are moved toward each other, the two link bodies 4623 are synchronously slid relative to the two abutting portions 475, respectively; when the bending force to the frame 21 is released, the abutting portion 475 can abut against the corresponding hovering damping surface 4636, and friction resistance exists between the guide rail 4620 and the inner surface of the corresponding guide groove 4550, so that the electronic device 100 maintains a hovering state.

When the electronic device 100 needs to be flattened, a force for unfolding is applied to at least one of the two frames 21 of the electronic device 100, so that the rotating mechanism 45 connected to the two frames 21 rotates in a direction away from each other, the flattening of the rotating shaft device 40 is achieved through the two folding-assisting components 41, and the bendable region 31 of the flexible screen 30 is flattened along with the bendable components 42. Specifically, if a deployment force is applied to one of the frames 21, the one of the frames 21 drives the corresponding rotating mechanism 45 to rotate relative to the base 44 toward a side away from the flexible screen 30; the corresponding connecting rod 462 is driven to rotate along the axis of the rotating shaft 461 to a side far away from the flexible screen 30 relative to the base 44, meanwhile, the guide rail 4620 of the connecting rod 462 slides in the guide groove 4550 of the corresponding connecting piece 455, the first sleeve 4622 of the connecting rod 462, the rotating shaft 461 and the driving gear 4621 rotate along the axis of the corresponding rotating shaft 461, the rotating driving gear 4621 drives the other driving gear 4621 to rotate through the gear combination 464, and the rotation of the other driving gear 4621 drives the corresponding rotating shaft 461, the first sleeve 4622 and the connecting rod body 4623 to rotate, so that the two connecting rod 462 of the linkage mechanism 46 are synchronously far away from each other; meanwhile, the guide rail 4620 of the link body 4623 slides along the corresponding guide groove 4550, so that after the abutting portion 475 is separated from the corresponding second positioning surface 4634, the abutting portion 475 slides relative to the hover damping surface 4636 until the abutting portion 475 is positioned to the first positioning surface 4632, until the two frames 21 of the electronic device 100 are synchronously unfolded to a fully flattened state. In the flattening process of the linkage mechanism 46, the first rotating portion 452 of the rotating member 450 rotates relative to the base 44 through the cooperation of the circular arc rail and the corresponding circular arc groove, the second rotating portion 453 of the rotating member 450 is rotationally connected with the corresponding connecting member 455 along the corresponding connecting shaft 451, the adjusting shaft 4628 rotates and slides in the corresponding adjusting groove 4237 from the first positioning segment 4237a to the second positioning segment 4237b, the two connecting rod members 462 rotate along the axis of the corresponding rotating shaft 461 respectively to be far away from each other, so as to realize the flattening of the two side supporting members 423, the connecting rod body 4623 slides relative to the corresponding abutting portion 475, so as to realize the separation of the two side supporting members 423, so that the rotating shaft device 40 is in a flattened state, and the bendable region 31 of the flexible screen 30 is unfolded along with the rotating shaft device 40 until the bendable region 31 is completely flattened. At this time, the abutment portion 475 and the first positioning surface 4632 of the cam surface 463 abut against each other, and there is frictional resistance between the guide rail 4620 and the inner surface of the corresponding guide groove 4550, so that the electronic apparatus 100 is kept in a flattened state.

In other bending modes of the electronic device 100, the two frames 21 can be simultaneously applied with unfolding force, and the two frames 21 respectively drive the two side supporting pieces 423 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 40.

During deployment of the electronic device 100, the electronic device 100 can be deployed to a hover state; specifically, when the two frame bodies 21 are rotated synchronously with respect to the base 44 to be separated from each other, the two link bodies 4623 slide synchronously with respect to the two abutting portions 475, respectively; when the unfolding force to the frame 21 is released, the abutting portion 475 can abut against the corresponding hovering damping surface 4636, and friction resistance exists between the guide rail 4620 and the inner surface of the corresponding guide groove 4550, so that the electronic device 100 maintains a hovering state.

The abutment portion 475 of the spindle means 40 of the electronic device 100 of the present invention abuts against the corresponding cam surface 463, and there is frictional resistance between the guide rail 4620 and the inner surface of the corresponding guide slot 4550, which enables the electronic device 100 to be stably positioned in the fully flattened state, the hovering state or the fully folded state; and the rotating shaft device 40 occupies a small space of the folding housing 20, which is beneficial to the miniaturization development of the electronic equipment 100.

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 rotating mechanism comprises a rotating piece and a connecting piece, one end of the rotating piece is rotationally connected with the base, and one end of the rotating piece far away from the base is rotationally connected with the connecting piece;

a link member rotatably connected to the base, an end of the link member remote from the base being slidably connected to the connecting member, a rotational axis between the link member and the base being parallel to a rotational axis between the rotational member and the base; and

and the pushing piece is provided with a cam surface, one of the connecting rod piece and the connecting piece is connected with the other one of the connecting rod piece and the connecting piece, and can slidably push against the cam surface so that the rotating shaft device can be positioned in a complete flattening state, a hovering state or a complete folding state.

2. The spindle assembly of claim 1 wherein said abutment includes a resilient abutment portion, said cam surface includes a first locating surface, a second locating surface, and a hover damping surface connected between said first locating surface and said second locating surface, said first locating surface being closer to said base than said second locating surface, said spindle assembly being in a fully flattened condition when said abutment portion abuts said first locating surface; when the propping part is propped against the second positioning surface, the rotating shaft device is in a completely folded state; when the propping part is propped against the hovering damping surface, the rotating shaft device is in a hovering state.

3. The rotating shaft device according to claim 2, wherein the connecting member is provided with a through groove, opposite ends of the through groove are respectively penetrated through opposite side surfaces of the connecting member, the connecting member comprises a connecting rod body far away from one end of the base, the cam surface is arranged on the connecting rod body, the connecting rod member is slidably inserted into the through groove, the pushing member is connected to the connecting member, and the pushing member is accommodated in the through groove and pushes against the cam surface.

4. A spindle apparatus according to claim 3 wherein said link body and said connecting member are slidably connected by engagement of a guide groove with a guide rail, said abutment portion abutting said cam surface to cause said guide rail to abut against an inner surface of said guide groove, said guide rail and said inner surface of said guide groove having frictional resistance therebetween and frictional resistance therebetween when said guide rail slides in said guide groove.

5. A spindle assembly as set forth in claim 3 wherein said abutment further includes a positioning portion fixedly connected to said connector, said abutment including a resilient arm connected to said positioning portion and an abutment tab connected to said resilient arm, said abutment tab slidably abutting said cam surface.

6. A spindle assembly according to claim 5, wherein the abutment tab includes an arcuate surface abutting the cam surface, the cam surface and/or the arcuate surface being provided with a damping structure.

7. The rotating shaft device according to claim 5, wherein the connecting piece is provided with a fixing portion at one side of the through groove, the positioning portion comprises a first clamping piece and a second clamping piece connected to the first clamping piece, the first clamping piece and the second clamping piece are clamped at the fixing portion, the inner surface of the through groove is provided with an avoidance groove, the abutting portion can be accommodated in the avoidance groove, and the abutting piece is located at one end of the elastic arm far away from the first clamping piece.

8. The rotary shaft device according to claim 2, wherein the hover damping surface is provided with a plurality of positioning grooves, the positioning grooves are arranged at intervals in a direction parallel to a sliding direction of the link member relative to the connecting member, and the abutting portions are respectively positioned in the plurality of positioning grooves so as to enable the link member to be folded to different angles relative to the base.

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.