CN117834765A - Folding device, folding shell and electronic equipment - Google Patents
Folding device, folding shell and electronic equipment Download PDFInfo
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- CN117834765A CN117834765A CN202311850057.6A CN202311850057A CN117834765A CN 117834765 A CN117834765 A CN 117834765A CN 202311850057 A CN202311850057 A CN 202311850057A CN 117834765 A CN117834765 A CN 117834765A
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- 230000002093 peripheral effect Effects 0.000 claims 2
- 125000006850 spacer group Chemical group 0.000 description 31
- 238000013016 damping Methods 0.000 description 27
- 238000005452 bending Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 230000002633 protecting effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000026683 transduction Effects 0.000 description 2
- 238000010361 transduction Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
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Abstract
The invention provides a folding device which comprises a base, a first rotating piece, a second rotating piece, a linkage mechanism and a supporting mechanism, wherein the first rotating piece is rotationally connected to one side of the base; the linkage mechanism comprises a first link rod and a second link rod, the first link rod is rotationally connected to one side of the base, and the second link rod is rotationally connected to the opposite side of the base; the support mechanism comprises a first side support piece and a second side support piece, one side of the first rotating piece, which is far away from the base, is rotationally connected with the first side support piece, one side of the second rotating piece, which is far away from the base, is rotationally connected with the second side support piece, one end of the first connecting rod piece, which is far away from the base, is slidingly connected with the first side support piece, and one end of the second connecting rod piece, which is far away from the base, is slidingly connected with the second side support piece. The application also provides a folding shell provided with the folding device and electronic equipment.
Description
Technical Field
The invention relates to the field of flexible screen support, in particular to a folding device for supporting a flexible screen, a folding shell provided with the folding device and electronic equipment provided with the folding shell.
Background
Currently, a foldable electronic product with a flexible display screen is more and more popular among people, the flexible display screen of the foldable electronic product in the prior art is generally supported by a folding device, the existing folding device generally comprises a rotating member rotationally connected with a base, a connecting member rotationally connected with one end of the rotating member far away from the base, a connecting rod rotationally connected with the base, and a supporting mechanism, the supporting mechanism generally comprises a middle supporting member covered with the base and two side supporting members arranged on two opposite sides of the middle supporting member, one end of the connecting rod member far away from the base is slidingly connected with the corresponding side supporting member, and the connecting member is rotationally connected with the corresponding side supporting member; however, more kinematic pairs exist among all parts in the existing folding device, more movement gaps are increased, so that the allowable dislocation amount of the folding device after assembly is increased, and the supporting and protecting effects of the folding device on the bendable flexible display screen are weakened.
Disclosure of Invention
The application provides a folding device, a folding shell provided with the folding device and electronic equipment provided with the folding shell.
The folding device comprises a base, a first rotating piece, a second rotating piece, a linkage mechanism and a supporting mechanism, wherein the first rotating piece is rotationally connected to one side of the base, and the second rotating piece is rotationally connected to the opposite side of the base; the linkage mechanism comprises a first link rod and a second link rod, wherein the first link rod is rotationally connected to one side of the base, and the second link rod is rotationally connected to the opposite side of the base; the support mechanism comprises a first side support piece and a second side support piece, wherein the first side support piece is located on one side of the base, the second side support piece is located on the other opposite side of the base, one side, away from the base, of the first rotating piece is rotationally connected with the first side support piece, one side, away from the base, of the second rotating piece is rotationally connected with the second side support piece, one end, away from the base, of the first connecting rod piece is in sliding connection with the first side support piece, and one end, away from the base, of the second connecting rod piece is in sliding connection with the second side support piece.
The application also provides a folding shell, which comprises a folding device and two frame bodies, wherein the folding device comprises a base, a first rotating piece, a second rotating piece, a linkage mechanism and a supporting mechanism, the first rotating piece is rotationally connected to one side of the base, and the second rotating piece is rotationally connected to the opposite side of the base; the linkage mechanism comprises a first link rod and a second link rod, wherein the first link rod is rotationally connected to one side of the base, and the second link rod is rotationally connected to the opposite side of the base; the support mechanism comprises a first side support piece and a second side support piece, wherein the first rotating piece is far away from one side of the base and is rotationally connected with the first side support piece, the second rotating piece is far away from one side of the base and is rotationally connected with the second side support piece, the first connecting rod piece is far away from one end of the base and is in sliding connection with the first side support piece, the second connecting rod piece is far away from one end of the base and is in sliding connection with the second side support piece, the folding device is located between two frame bodies, and the two frame bodies are respectively connected with two opposite sides of the folding device.
The application also provides electronic equipment, which comprises a flexible screen and a folding shell, wherein the folding shell comprises a folding device and two frame bodies, the folding device comprises a base, a first rotating piece, a second rotating piece, a linkage mechanism and a supporting mechanism, the first rotating piece is rotationally connected to one side of the base, and the second rotating piece is rotationally connected to the opposite side of the base; the linkage mechanism comprises a first link rod and a second link rod, wherein the first link rod is rotationally connected to one side of the base, and the second link rod is rotationally connected to the opposite side of the base; the support mechanism comprises a first side support piece and a second side support piece, wherein the first rotating piece is far away from one side of the base and is rotationally connected with the first side support piece, the second rotating piece is far away from one side of the base and is rotationally connected with the second side support piece, the first connecting rod piece is far away from one end of the base and is in sliding connection with the first side support piece, the second connecting rod piece is far away from one end of the base and is in sliding connection with the second side support piece, the folding device is located between two frame bodies, the two frame bodies are respectively connected with the two opposite sides of the folding device, and the flexible screen is arranged on the folding shell.
The first connecting rod piece of the folding device of the electronic equipment is directly connected with the first side supporting piece in a sliding mode, the first connecting rod piece is not required to be connected with the first side supporting piece in a sliding mode through the first rotating piece, the second connecting rod piece is directly connected with the second side supporting piece in a sliding mode, and the second connecting rod piece is not required to be connected with the second side supporting piece in a sliding mode through the second rotating piece; the kinematic pairs among the components of the folding device are reduced, the movement gap of the folding device is reduced, the allowable error amount of the folding device is reduced, and the supporting and protecting effects of the folding device on the bendable flexible display screen are enhanced.
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 present application;
FIG. 2 is an exploded schematic view of the electronic device of FIG. 1;
FIG. 3 is a further exploded perspective view of the electronic device of FIG. 2;
FIG. 4 is a schematic perspective view of the folding device of FIG. 3;
FIG. 5 is another perspective view of the folding device of FIG. 4;
FIG. 6 is an exploded perspective view of the folding device of FIG. 4;
FIG. 7 is an exploded perspective view of the folding device of FIG. 5;
FIG. 8 is an exploded perspective view of one of the folding assemblies of FIG. 6;
FIG. 9 is an exploded perspective view of one of the folding assemblies of FIG. 7;
FIG. 10 is an enlarged perspective view of the linkage and spacing mechanism of FIG. 8;
FIG. 11 is an enlarged perspective view of the linkage and spacing mechanism of FIG. 10 from another perspective;
FIG. 12 is an exploded perspective view of the linkage and spacing mechanism of FIG. 10;
FIG. 13 is an exploded perspective view of the linkage and spacing mechanism of FIG. 11 from another perspective;
FIG. 14 is a schematic elevational view of the folding assembly of FIG. 4;
FIG. 15 is an end view of the folding assembly of FIG. 4;
FIG. 16 is a perspective cross-sectional view of the folding assist assembly of FIG. 4;
FIG. 17 is another perspective cross-sectional view of the folding assist assembly of FIG. 4;
fig. 18 is a schematic perspective view of a folded state of the electronic device in fig. 1;
FIG. 19 is an exploded perspective view of the electronic device of FIG. 18;
FIG. 20 is a schematic perspective view of the tuck-in assembly of FIG. 19;
FIG. 21 is a schematic perspective view of another view of the tuck-in assembly of FIG. 20;
FIG. 22 is an end schematic view of the tuck-in assembly of FIG. 20;
FIG. 23 is a perspective cross-sectional view of the folding device of FIG. 20;
fig. 24 is another perspective cross-sectional view of the folding device of fig. 20.
The main reference numerals illustrate:
100. an electronic device; 20. folding the shell; 21. a frame; 211. a first front face; 212. a first back surface; 214. a first side; 215. a first end face; 216. a positioning groove; 217. a positioning part; 30. a flexible screen; 31. a bendable region; 33. a non-bending region; 50. a folding device; 51. a folding assisting component; 52. a support mechanism; 523. a first side support; 5230. a first guide chute; 5231. a first support plate; 5232. a first back surface; 5234. a first support block; 5236. a first connection block; 5237. a first rotating groove; 5238. a first tab; 523. a second side support; 5250. a second guide chute; 5251. a second support plate; 5252. a second back surface; 5254. a second support block; 5256. a second connection block; 5257. a second rotating groove; 5258. a second tab; 526. a back cover; 5262. a connection part; 5264. a connecting column; 5265. a connection hole; 53. a first rotating member; 532. a first rotating part; 5321. a first circular arc rail; 5323. a first stopper; 533. a first connection portion; 5330. a first rotating rail; 5332. a first fixing hole; 54. a base; 540. a second front face; 541. a first receiving groove; 5411. a first circular arc groove; 5412. a first transduction block; 5413. a first positioning block; 542. a second side; 543. a second accommodating groove; 5431. a second circular arc groove; 5432. a second transduction block; 5433. a second positioning block; 544. a second back surface; 545. a second end face; 5451. a first shaft hole; 5453. a connection hole; 547. an avoidance groove; 548. a mounting hole; 55. a second rotating member; 552. a second rotating part; 5521. a second circular arc rail; 5523. a second stopper; 553. a second connecting portion; 5530. a second rotating rail; 5532. a second fixing hole; 56. a linkage mechanism; 560. a first link member; 5600. a first guide rail; 5601. a first link; 5603. a first sleeve; 5605. a first shaft hole; 561. a rotating shaft; 5610. a shaft body; 5612. a connecting cap; 5613. a positioning part; 5616. a clamping groove; 562. a second link member; 5620. the second guide slide rail; 5621. a second link; 5623. a second sleeve; 5625. a second shaft hole; 564. a gear assembly; 5640. a first drive gear; 5641. a second drive gear; 5642. a synchronizing gear; 5644. a rotation shaft; 5646. a gear ring; 565. a fixing member; 5652. a first through hole; 5654. a first connection hole; 5656. a first escape opening; 57. a limiting mechanism; 572. a pushing member; 5721. a first cam; 5721a, a first projection; 5721b, a first recess; 5723. a second cam; 573. a holding member; 5723a, a second projection; 5723b, a second recess; 573. a holding member; 5730. a sliding cylinder; 5731. the cam is abutted; 5732. a connection part; 5734. a third projection; 5735. a third recess; 5736. a second connection hole; 5738. a second clearance port; 575. an elastic member; 576. a positioning piece; 5761. a positioning part; 5763. a sliding part; 5764. a third clearance port; 5765. a second pass; 5766. avoidance holes; 577. a friction assembly; 5770. a first friction member; 5772. a first positioning hole; 5774. a first damping portion; 5775. a second friction member; 5776. a second positioning hole; 5778. a second damping portion; 5779. a buckle; 578. a gasket; 5782. and a through hole.
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 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 folding housing 20 includes two frames 21 and a folding device 50 disposed between the two frames 21, one side of the folding device 50 is connected to one of the frames 21, the other opposite side of the folding device 50 is connected to the other frame 21, and the flexible screen 30 is disposed on the front surfaces of the two frames 21 and the front surface of the folding device 50. The flexible screen 30 comprises a bendable region 31 corresponding to the folding means 50 and two non-bendable regions 33 connected to opposite sides of the bendable region 31. The folding device 50 is used to support the bendable region 31 of the flexible screen 30, the bendable region 31 can be folded or flattened along with the folding device 50, and the bendable region 31 can be folded 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 folding device 50 comprises a folding assisting component 51 and a supporting mechanism 52 connected with the folding assisting component 51, wherein the folding assisting component 51 comprises the supporting mechanism 52, a first rotating piece 53, a base 54, a second rotating piece 55, a linkage mechanism 56 and a limiting mechanism 57; the first rotating member 53 is rotatably connected to one side of the base 54, and the second rotating member 55 is rotatably connected to the opposite side of the base 54; the linkage 56 includes a first link member 560 and a second link member 562, the first link member 560 being rotatably coupled to one side of the base 54, the second link member 562 being rotatably coupled to the opposite side of the base 54, the first rotary member 53 and the first link member 560 being located on one side of the base 54, the second rotary member 55 and the second link member 562 being located on the opposite side of the base 54; the support mechanism 52 includes a first side support 523 and a second side support 525, wherein a side of the first rotating member 53 away from the base 54 is rotationally connected with the first side support 523, a side of the second rotating member 55 away from the base 54 is rotationally connected with the second side support 525, an end of the first link member 560 away from the base 54 is slidably connected with the first side support 523, and an end of the second link member 562 away from the base 54 is slidably connected with the second side support 525.
At least one folding assisting component 51 is arranged on the back of the supporting mechanism 52, in this embodiment, two folding assisting components 51 are arranged on two opposite ends of the back of the supporting mechanism 52, and the two folding assisting components 51 are respectively arranged on the two opposite ends of the back of the supporting mechanism 52. In other embodiments, the number of the folding assisting assemblies 51 may be more than three, and the more than three folding assisting assemblies 51 are disposed at intervals on the back of the supporting mechanism 52.
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.
Opposite ends of a first rotating member 53 of a folding device 50 of an electronic apparatus 100 of the present invention are rotatably connected to a base 54 and a first side supporting member 523, opposite ends of a second rotating member 55 are rotatably connected to the base 54 and a second side supporting member 525, respectively, a first link member 560 is directly slidably connected to the first side supporting member 523, and a second link member 562 is directly slidably connected to the second side supporting member 525; compared with the existing folding device, the first link member 560 is not required to be slidably connected to the first side supporting member 523 by the first rotating member 53, and the second link member 562 is not required to be slidably connected to the second side supporting member 525 by the second rotating member 55, so that kinematic pairs between the components of the folding device 50 are reduced, movement gaps of the folding device 50 are reduced, the allowable dislocation amount of the folding device 50 is reduced, and the supporting and protecting effects of the folding device on the flexible display screen can be enhanced.
Alternatively, the first axis L1 between the first rotation member 53 and the base 54, the first rotation axis O1 between the first rotation member 53 and the first side support 523, the second axis L2 between the second rotation member 55 and the base 54, the second rotation axis O2 between the second rotation member 55 and the second side support 525, the first rotation axis P1 between the first link member 560 and the base 54, and the second rotation axis P2 between the second link member 562 and the base 54 are spaced apart from each other in parallel, and the sliding direction of the first link member 560 with respect to the first side support 523 and the sliding direction of the second link member 562 with respect to the second side support 525 are perpendicular to the first axis L1. The first axis L1 and the second axis L2 are located between the first rotation axis P1 and the second rotation axis P2; when the folding device 50 is in the flattened state, the first axis L1 and the second axis L2 are located between the first rotation axis P1 and the second rotation axis P2, and the first rotation axis P1 and the second rotation axis P2 are located between the first rotation axis O1 and the second rotation axis O2.
As shown in fig. 2 and 3, the frame 21 includes a first front 211, a first back 212, two opposite first side surfaces 214, and two opposite first end surfaces 215, the first front 211 is provided with a positioning slot 216 on a side close to the folding device 50, opposite ends of the positioning slot 216 extend to be close to the two first side surfaces 214 respectively, one side of the positioning slot 216 passes through the first end surface 215 facing the folding device 50, and opposite ends of the positioning slot 216 of the frame 21 are provided with positioning portions 217 respectively. Optionally, a battery, a PCB assembly, a speaker, a receiver, a key, and other functional modules are disposed inside the frame 21.
As shown in fig. 4 to 7, the first link 560 is connected to the first side support 523 by a first slide guide rail, which may be provided to one of the first link 560 and the first side support 523, and the first slide guide rail may be provided to the other of the first link 560 and the first side support 523; the second link member 562 and the second side support 525 are connected by a second guide rail, which may be provided to one of the second link member 562 and the second side support 525, and a second guide chute, which may be provided to the other of the second link member 562 and the second side support 525; the length direction of the first sliding chute and the length direction of the second sliding chute are perpendicular to the first axis L1. In the present embodiment, the first side supporting member 523 is provided with a first guide chute 5230, the first link member 560 is provided with a first guide rail 5600, and the first guide rail 5600 is slidably inserted into the first guide chute 5230; the second side support 525 is provided with a second guide chute 5250, the second link member 562 is provided with a second guide rail 5620, and the second guide rail 5620 is slidably inserted into the second guide chute 5250.
In other embodiments, the first guide rail 5230 can be a first arc-shaped groove provided on the first support block 5234, and the first guide rail 5600 is a first arc-shaped rail provided on the first link 560, and the first arc-shaped rail is slidingly received in the first arc-shaped groove; the second guide rail 5250 is a second arc-shaped groove provided on the second support block 5254, and the second guide rail 5620 is a second arc-shaped rail provided on the second link 5621 and slidingly received in the second arc-shaped groove. In other embodiments, the first guide rail 5230 can be a first arc-shaped groove provided on the first link 560, the first arc-shaped groove, the first guide rail 5600 is a first arc-shaped rail provided on the first support block 5234, and the first arc-shaped rail is slidingly received in the first arc-shaped groove; the second guide rail 5250 is a second arc-shaped groove provided on the second connecting rod 5621, and the second guide rail 5620 is a second arc-shaped rail provided on the second supporting block 5254, and the second arc-shaped rail is slidingly accommodated in the second arc-shaped groove.
Specifically, the first side support 523 and the second side support 525 are respectively disposed on opposite sides of the base 54, the first side support 523 includes a rectangular first support plate 5231 and a first support block 5234 disposed on a first back surface 5232 of the first support plate 5231, the first link 560 includes a first link 5601, the first slide rail 5600 is disposed on one of the first support block 5234 and the first link 5601, and the first slide rail 5230 is disposed on the other of the first support block 5234 and the first link 5601. In the present embodiment, the first guide and slide groove 5230 is disposed on the first support block 5234, and the first guide and slide rail 5600 is disposed on the first link 5601; the second side support 525 includes a rectangular second support plate 5251 and a second support block 5254 provided on a second back surface 5252 of the second support plate 5251, the second link member 562 includes a second link 5621, the second guide rail 5620 is provided on one of the second support block 5254 and the second link 5621, and the second guide chute 5250 is provided on the other of the second support block 5254 and the second link 5621; in this embodiment, the second guide rail 5250 is disposed on the second supporting block 5254, and the second guide rail 5620 is disposed on the second connecting rod 5621. Optionally, the first supporting block 5234 is located at a side close to the base 54, the length direction of the first guiding chute 5230 is inclined to the first back surface 5232, and one end of the first guiding chute 5230 close to the base 54 is closer to the first back surface 5232 than the other end of the first guiding chute 5230 away from the base 54; the second supporting block 5254 is located at a side close to the base 54, and the length direction of the second guide chute 5250 is inclined to the second back surface 5252, and one end of the second guide chute 5250 close to the base 54 is closer to the second back surface 5252 than the other end of the second guide chute 5250 away from the base 54.
In the present embodiment, a pair of first supporting blocks 5234 spaced apart from each other are respectively disposed at opposite ends of the first back surface 5232 of the first supporting plate 5231, a first connecting rod 5601 is located between the pair of first supporting blocks 5234, first sliding guide grooves 5230 are respectively disposed on opposite side surfaces of the pair of first supporting blocks 5234 facing each other, first sliding guide rails 5600 are respectively disposed on opposite sides of the first connecting rod 5601, and the two first sliding guide rails 5600 are respectively slidably accommodated in the two first sliding guide grooves 5230; in other embodiments, the two opposite sides of the pair of first support blocks 5234 facing each other are respectively provided with a first guiding rail, the opposite sides of the first connecting rod 5601 are respectively provided with a first guiding rail, and the two first guiding rails 5600 are respectively slidably accommodated in the two first guiding rails 5230. The opposite ends of the second back surface 5252 of the second supporting plate 5251 are respectively provided with a pair of second supporting blocks 5254 which are spaced from each other, the second connecting rod 5621 is positioned between the pair of second supporting blocks 5254, two opposite side surfaces of the pair of second supporting blocks 5254 which face each other are respectively provided with a second guide sliding groove 5250, two opposite sides of the second connecting rod 5621 are respectively provided with a second guide sliding rail 5620, and the two second guide sliding rails 5620 are respectively accommodated in the two second guide sliding grooves 5250 in a sliding manner; in other embodiments, two opposite sides of the pair of second support blocks 5254 facing each other are respectively provided with a second guiding rail, and two opposite sides of the second connecting rod 5621 are respectively provided with a second guiding chute, and the two second guiding rails are respectively slidingly accommodated in the two second guiding chutes.
The side of the first rotating member 53 away from the base 54 is connected with the first side supporting member 523 through the cooperation of a first rotating rail and a first rotating groove, wherein the first rotating rail is arranged on one of the first rotating member 53 and the first side supporting member 523, and the first rotating groove is arranged on the other of the first rotating member 53 and the first side supporting member 523; the side of the second rotating member 55 away from the base 54 is connected with the second side supporting member 525 through the cooperation of a second rotating rail provided on one of the second rotating member 55 and the second side supporting member 525 and a second rotating groove provided on the other of the second rotating member 55 and the second side supporting member 525. Specifically, the first rotating member 53 includes a first rotating portion 532 and a first connecting portion 533 connected to the first rotating portion 532, the first back surface 5232 of the first side supporting member 523 is provided with a first connecting block 5236, the first connecting block 5236 is provided with a first rotating groove 5237, the first connecting portion 533 is provided with a first rotating rail 5330, and the first rotating rail 5330 is rotatably accommodated in the first rotating groove 5237; the second rotating member 55 includes a second rotating portion 552 and a second connecting portion 553 connected to the second rotating portion 552, the second back surface 5252 of the second side supporting member 525 is provided with a second connecting block 5256, the second connecting block 5256 is provided with a second rotating groove 5257, the second connecting portion 553 is provided with a second rotating rail 553, and the second rotating rail 553 is rotatably accommodated in the second rotating groove 5257. In this embodiment, the first connection portion 533 is a first rectangular strip, the first rotation portion 532 is connected to one end of the first rectangular strip, two opposite end surfaces of the first rectangular strip are respectively provided with a first rotation rail 5330, the two first rotation rails 5330 are coaxial, and a first fixing hole 5332 is formed in the front surface of the first connection portion 533; the second connecting portion 553 is a second rectangular strip, the second rotating portion 552 is connected to one end of the second rectangular strip, two opposite end surfaces of the second rectangular strip are respectively provided with a second rotating rail 5530, the two second rotating rails 5530 are coaxial, and a second fixing hole 5532 is formed in the front surface of the second connecting portion 553.
Alternatively, opposite ends of the first back surface 5232 of the first side support 523 are respectively provided with a pair of first connection blocks 5236 which are spaced apart from each other, the first connection portion 533 is located between the pair of first connection blocks 5236, one of the first connection portion 533 and the first connection block 5236 is provided with a first rotation rail 5330, and the other is provided with a first rotation groove 5237; in the present embodiment, the two opposite side surfaces of the pair of first connecting blocks 5236 facing each other are respectively provided with a first rotating groove 5237, and the opposite ends of the first connecting portion 533 are respectively provided with a first rotating rail 5330, and the two first rotating rails 5330 are respectively accommodated in the two first rotating grooves 5237; opposite ends of the second back surface 5252 of the second side support 525 are respectively provided with a pair of second connection blocks 5256 which are oppositely spaced, the second connection portion 553 is positioned between the pair of second connection blocks 5256, one of the second connection portion 553 and the second connection block 5256 is provided with a second rotating rail 5530, and the other is provided with a second rotating groove 5257; in this embodiment, two opposite side surfaces of the pair of second connection blocks 5256 facing each other are respectively provided with a second rotating groove 5257, two opposite ends of the second connection portion 553 are respectively provided with a second rotating rail 553, and two second rotating rails 5530 are respectively accommodated in the two second rotating grooves 5257. Opposite ends of the first back surface 5232 of the first side support 523 are respectively provided with a pair of first connection blocks 5236 and a pair of first support blocks 5234, the two pairs of first support blocks 5234 are positioned between the two pairs of first connection blocks 5236, and the first connection blocks 5236 are positioned at one side of the first back surface 5232 away from the base 54; opposite ends of the second back surface 5252 of the second side supporting member 525 are respectively provided with a pair of second connection blocks 5256 and a pair of second supporting blocks 5254, the two pairs of second supporting blocks 5254 are located between the two pairs of second connection blocks 5256, and the second connection blocks 5256 are located at a side of the second back surface 5252 away from the base 54. Specifically, the first rotating groove 5237 and the second rotating groove 5257 are arc grooves, the first rotating rail 5330 and the second rotating rail 5530 are arc rails, the first rotating grooves 5237 on the first side support 523 are coaxial, the second rotating grooves 5257 on the second side support 525 are coaxial, and the axial line interval of the first rotating rail 5330 is parallel to the axial line of the second rotating rail 5530.
In other embodiments, two opposite side surfaces of the pair of first connecting blocks 5236 facing each other are respectively provided with a first rotating rail, and two opposite ends of the first connecting portion 533 are respectively provided with a first rotating groove, where the two first rotating rails are respectively accommodated in the two first rotating grooves; the two opposite sides of the second connection blocks 5256 are respectively provided with a second rotating rail, and the opposite ends of the second connection parts 553 are respectively provided with a second rotating groove.
Optionally, the first side support 523 further includes a rectangular first tab 5238, the first tab 5238 is protruding on a side of the middle portion of the first support plate 5231 facing the second support plate 5251, and the first support plate 5231 is coplanar with the first tab 5238; the second side supporting member 525 further includes a rectangular second tab 5258, the second tab 5258 is protruded on a side of the middle portion of the second supporting plate 5251 facing the first supporting plate 5231, and the second supporting plate 5251 is coplanar with the second tab 5258; when the support mechanism 52 is in the flattened state, the first tab 5238 is co-frontal with the second tab 5258. Optionally, the side of the first tab 5238 facing away from the first support plate 5231 and the side of the second tab 5258 facing away from the second support plate 5251 abut or are adjacent to each other.
Optionally, the supporting mechanism 52 further includes a back cover 526 connected to a back surface of the base 54, the back cover 526 is a bar frame, opposite ends of a front surface of the back cover 526 are respectively provided with a connecting portion 5262, the bases 54 of the two folding assemblies 51 are respectively connected to two connecting portions 5262 of the back cover 526, the connecting portions 5262 include a plurality of connecting posts 5264, and each connecting post 5264 is provided with a connecting hole 5265 along an axial direction thereof.
As shown in fig. 6 to 11, a first receiving groove 541 is formed in one side of the base 54, a second receiving groove 543 is formed in the opposite side of the base 54, the first receiving groove 541 and the second receiving groove 543 are offset in a direction parallel to a first axis L1 between the first rotating member 53 and the base 54, the first rotating portion 532 is rotatably received in the first receiving groove 541, and the second rotating portion 552 is rotatably received in the second receiving groove 543. Specifically, the base 54 is a rectangular block, the base 54 includes a second front surface 540, two opposite second side surfaces 542, a second back surface 544 facing away from the second front surface 540, and two opposite second end surfaces 545, the first receiving groove 541 is disposed at one end of one of the second side surfaces 542, the second receiving groove 543 penetrates the second front surface 540, the second receiving groove 543 is disposed at one end of the other second side surface 542 facing away from the first receiving groove 541, and the second receiving groove 543 penetrates the second front surface 540; the orthographic projections of the first receiving groove 541 and the second receiving groove 543 on a plane perpendicular to the first axis L1 at least partially overlap each other, and the first receiving groove 541 and the second receiving groove 543 are close to each other, so that the width of the base 54 is smaller.
The first rotating part 532 is connected with the base 54 in a matched rotating way through a first arc rail, the first arc rail is arranged on one of the first rotating part 532 and the base 54, and the first arc rail is arranged on the other of the first rotating part 532 and the base 54; the second rotating portion 552 is rotatably connected to the base 54 by a second circular arc rail provided on one of the second rotating portion 552 and the base 54, and the second circular arc rail provided on the other of the second rotating portion 552 and the base 54. One of the inner end surface of the first accommodation groove 541 of the base 54 and the first rotating portion 532 is provided with a first circular arc groove 5411, and the other is provided with a first circular arc rail 5321, and the first circular arc rail 5321 is rotatably accommodated in the first circular arc groove 5411; one of the inner end surface of the second receiving groove 543 of the base 54 and the second rotating portion 552 is provided with a second arc groove 5431, the other is provided with a second arc rail 5521, the second arc rail 5521 is rotatably accommodated in the second arc groove 5431, the axis of the first arc groove 5411 is collinear with the first axis L1, the axis of the second arc groove 5431 is collinear with the second axis L2, and the axial interval of the first arc groove 5411 is parallel to the axis of the second arc groove 5431. In the present embodiment, the opposite inner end surfaces of the first accommodating groove 541 of the base 54 are respectively provided with a first circular arc groove 5411, the two first circular arc grooves 5411 are coaxial, the opposite sides of the first rotating portion 532 are respectively provided with a first circular arc rail 5321, and when the first rotating portion 532 is accommodated in the first accommodating groove 541, the two first circular arc rails 5321 are respectively rotatably accommodated in the two first circular arc grooves 5411; the opposite inner end surfaces of the second accommodating groove 543 of the base 54 are respectively provided with a second circular arc groove 5431, the two second circular arc grooves 5431 are coaxial, the opposite sides of the second rotating portion 552 are respectively provided with a second circular arc rail 5521, and when the second rotating portion 552 is accommodated in the second accommodating groove 543, the two second circular arc rails 5521 are respectively rotatably accommodated in the two second circular arc grooves 5431.
The base 54 forms a first guide block 5412 on the inner end surface of the first accommodating groove 541 in the area surrounded by the first circular arc groove 5411, and the base 54 forms a second guide block 5432 on the inner end surface of the second accommodating groove 543 in the area surrounded by the second circular arc groove 5431, and the first circular arc groove 5411 and the second circular arc groove 5431 are both close to the back surface of the base 54, so that the radius value of the first guide block 5412 and the radius value of the second guide block 5432 are both larger, and when the first circular arc rail 5321 is inserted into the first circular arc groove 5411 and the second circular arc rail 5521 is inserted into the second circular arc groove 5431, the connection between the first circular arc rail 5321 and the second circular arc rail 5521 and the base 54 can be stable and firm due to the larger volumes of the first guide block 5412 and the second guide block 5432. Optionally, a first stop block 5323 is disposed at an end of at least one first circular arc rail 5321 of the first rotating portion 532, which is far away from the first connecting portion 533, and a first positioning block 5413 is disposed at an end of at least one of the two first circular arc grooves 5411, which is close to the first connecting portion 533, and the first stop block 5323 can rotate in the corresponding first circular arc groove 5411 and can stop at the first positioning block 5413; when the first rotating member 53 is in a fully folded state with respect to the base 54, the first stop block 5323 stops against the first positioning block 5413 to prevent the first rotating member 53 from being further folded with respect to the base 54; the end, far away from the second connection portion 553, of at least one second circular arc rail 5521 of the second rotation portion 552 is provided with a second stop block 5523, the end, near the second connection portion 553, of at least one of the two second circular arc grooves 5431 is provided with a second positioning block 5433, and the second stop block 5523 can rotate in the corresponding second circular arc groove 5431 and can stop at the second positioning block 5433; when the second rotating member 55 is folded relative to the base 54, the second stop block 5523 stops at the second positioning block 5433 to prevent the second rotating member 55 from being folded further relative to the base 54.
Optionally, an avoidance groove 547 is provided in the middle of the front surface of the base 54, and the avoidance groove 547 penetrates through two opposite end surfaces of the base 54 along the length direction of the base 54, and the first accommodating groove 541 and the second accommodating groove 543 are both communicated with the avoidance groove 547. Specifically, the relief groove 547 is disposed in a middle portion of the second front surface 540 of the base 54, and the relief groove 547 extends along a length of the base 54 and penetrates through two opposite second end surfaces 545 of the base 54. In this embodiment, the inner surface of the avoiding groove 547 is an arc surface. Opposite ends of the second front surface 540 of the base 54 are provided with mounting holes 548, respectively. The second end surface 545 of the base 54 facing the linkage 56 is provided with two first shaft holes 5451 and two connecting holes 5453, the two first shaft holes 5451 are located at opposite ends of the second end surface 545, the two connecting holes 5453 are located between the two first shaft holes 5451, and axial lines of the two first shaft holes 5451 and the two connecting holes 5453 are parallel to a first axis L1 between the first rotating portion 532 and the base 54.
Referring to fig. 8-13, the linkage 56 further includes a pair of rotation shafts 561 spaced in parallel, and a gear assembly 564 disposed between the first link member 560 and the second link member 562, wherein the first link member 560 is connected to one of the rotation shafts 561, the second link member 562 is connected to the other rotation shaft 561, the pair of rotation shafts 561 are rotatably connected to opposite ends of one end of the base 54, the gear assembly 564 includes a first driving gear 5640 disposed on the first link member 560, a second driving gear 5641 disposed on the second link member 562, and a synchronizing gear 5642 disposed between the first link member 560 and the second link member 562, and the first driving gear 5640 and the second driving gear 5641 are respectively meshed with the corresponding synchronizing gear 5642. In this embodiment, two synchromesh gears 5642 are disposed between the first link member 560 and the second link member 562, wherein one synchromesh gear 5642 is engaged with the first driving gear 5640, and the other synchromesh gear 5642 is engaged with the second driving gear 5641. The first link member 560 is rotatably coupled to the base 54 through one rotation shaft 561, and the second link member 562 is rotatably coupled to the base 54 through the other rotation shaft 561. The first link member 560 further includes a first sleeve 5603 sleeved on one of the rotation shafts 561, the second link member 562 further includes a second sleeve 5623 sleeved on the other rotation shaft 561, the first driving gear 5640 is disposed on an outer circumferential surface of the first sleeve 5603, the second driving gear 5641 is disposed on an outer circumferential surface of the second sleeve 5623, one end of the first link 5601 is connected to a side of the first sleeve 5603 facing away from the first driving gear 5640, and one end of the second link 5621 is connected to a side of the second sleeve 5623 facing away from the second driving gear 5641. Specifically, the synchronizing gear 5642 includes a rotation shaft 5644 and a gear ring 5646, the gear ring 5646 is fixedly sleeved on the rotation shaft 5644, and opposite ends of the rotation shaft 5644 extend out of opposite ends of the gear ring 5646, respectively.
The rotating shaft 561 includes a shaft body 5610 and a connecting cap 5612 located at one end of the shaft body 5610, and a positioning portion 5613 is provided at a position of the shaft body 5610 near the connecting cap 5612, wherein the rotating shaft 561 is fixedly connected with the first sleeve 5603 of the first link member 560 through the positioning portion 5613 thereof, and the other rotating shaft 561 is fixedly connected with the second sleeve 5623 of the second link member 562 through the positioning portion 5613 thereof. In this embodiment, the positioning portion 5613 is a positioning surface provided on the outer wall of the shaft body 5610 and extending in the axial direction of the shaft body 5610. The connection cap 5612 is configured to be rotatably connected to the base 54, and a clamping groove 5616 is provided at an end of the shaft body 5610 away from the connection cap 5612, and the clamping groove 5616 is located on an outer circumferential wall of the shaft body 5610 and surrounds a circle along a circumferential direction of the shaft body 5610.
The first sleeve 5603 has a non-circular first shaft hole 5605, wherein the first sleeve 5603 is positioned on the positioning portion 5613 after the rotation shaft 561 is inserted into the first shaft hole 5605 of the first sleeve 5603, and the first sleeve 5603 and the rotation shaft 561 are rotatable together along the axis of the rotation shaft 561. The second sleeve 5623 has a non-circular second shaft hole 5625, and the second sleeve 5623 can be positioned on the positioning portion 5613 after the other rotation shaft 561 is inserted into the second shaft hole 5625 of the second sleeve 5623, and the second sleeve 5623 and the rotation shaft 561 can rotate together along the axis of the rotation shaft 561. The axis of the first drive gear 5640 is collinear with the axis of the first sleeve 5603 and the axis of the second drive gear 5641 is collinear with the axis of the second sleeve 5623. In the present embodiment, the rotation angle of the teeth of the first driving gear 5640 aligned in the circumferential direction of the first sleeve 5603 is 180 degrees, and the rotation angle of the teeth of the second driving gear 5641 aligned in the circumferential direction of the second sleeve 5623 is 180 degrees.
The linkage mechanism 56 further comprises a fixing part 565, and the fixing part 565 is sleeved at one end of a pair of rotating shafts 561; the fixing member 565 is a rectangular positioning piece, two opposite ends of the fixing member 565 are respectively provided with a first through hole 5652, shaft bodies 5610 of the two rotating shafts 561 are respectively arranged on the two first through holes 5652 in a penetrating manner, the two rotating shafts 561 can respectively rotate in the two first through holes 5652, and the fixing member 565 can only slide along the axial directions of the two rotating shafts 561. Two first connecting holes 5654 are formed in the middle of the fixing member 565 between the two first through holes 5652, and the axes of the first through holes 5652 are parallel to the axes of the first connecting holes 5654. The front surface of the fixture 565 is provided with a first clearance opening 5656, and the first clearance opening 5656 is configured to receive a folded bendable region. Opposite end surfaces of the fixing member 565 are formed as arc surfaces.
The limiting mechanism 57 includes a pushing member 572, a holding member 573, an elastic member 575, a positioning member 576 and a friction member 577; the pushing member 572 includes a first cam 5721 provided at one end of the first sleeve 5603 and/or a second cam 5723 provided at one end of the second sleeve 5623; in this embodiment, a first cam 5721 is disposed at an end of the first sleeve 5603 facing away from the holder 565, the first cam 5721 is coaxial with the first sleeve 5603, a second cam 5723 is disposed at an end of the second sleeve 5623 facing away from the holder 565, and the second cam 5723 is coaxial with the second sleeve 5623. Optionally, the first cam 5721 includes a concave-convex surface disposed at an end of the first sleeve 5603, where the concave-convex surface includes a first protruding portion 5721a and a first recessed portion 5721b, and the first protruding portion 5721a and the first recessed portion 5721b are sequentially arranged at intervals along a circumferential direction of the first sleeve 5603. The number of the first protruding portions 5721a and the number of the first recessed portions 5721b may be set as required, for example, the first cam 5721 may include one first protruding portion 5721a and one first recessed portion 5721b, two first protruding portions 5721a and two first recessed portions 5721b, three first protruding portions 5721a and three first recessed portions 5721b, or four first protruding portions 5721a and four first recessed portions 5721b, and the like. In this embodiment, the first cam 5721 includes three first protruding portions 5721a and three first recessed portions 5721b. The second cam 5723 includes a concave-convex surface provided at an end portion of the second sleeve 5623, the concave-convex surface including a second convex portion 5723a and a second concave portion 5723b, the second convex portion 5723a and the second concave portion 5723b being sequentially arranged at intervals along a circumferential direction of the second sleeve 5623. The number of the second protruding portions 5723a and the number of the second recessed portions 5723b may be set as needed, for example, the second cam 5723 may include one second protruding portion 5723a and one second recessed portion 5723b, two second protruding portions 5723a and two second recessed portions 5723b, three second protruding portions 5723a and three second recessed portions 5723b, or four second protruding portions 5723a and four second recessed portions 5723b, and the like. In this embodiment, the second cam 5723 includes three second protruding portions 5723a and three second recessed portions 5723b.
The abutting member 573 includes two abutting cams 5731 sleeved on a pair of rotation shafts 561, the first cam 5721 abuts against one of the abutting cams 5731 in a matching manner, the second cam 5723 abuts against the other abutting cam 5731 in a matching manner, and the elastic member 575 is used for abutting the abutting member 573 against the abutting member 572. Specifically, the supporting member 573 includes two sliding cylinders 5730 and two supporting cams 5731 spaced apart from each other, the two sliding cylinders 5730 are respectively sleeved on a pair of rotating shafts 561, one supporting cam 5731 is disposed at one end of one sliding cylinder 5730, and one supporting cam 5731 is coaxial with the sliding cylinder 5730; the other abutting cam 5731 is provided at one end of the other slide cylinder 5730, and the other abutting cam 5731 is coaxial with the slide cylinder 5730. In this embodiment, the supporting member 573 further includes a connecting strip 5732 connected to the two sliding cylinders 5730, and the two supporting cams 5731 are located on the same side of the connecting strip 5732; the two sliding cylinders 5730 and the two abutting cams 5731 are respectively slidably sleeved on the pair of rotating shafts 561, and the two rotating shafts 561 are respectively rotatably inserted into the two sliding cylinders 5730, so that the abutting members 573 can slide along the axial direction of the rotating shafts 561. Specifically, the abutment cam 5731 includes a concave-convex surface disposed at one end of the sliding cylinder 5730, where the concave-convex surface includes a third protruding portion 5734 and a third recessed portion 5735, and the third protruding portion 5734 and the third recessed portion 5735 are sequentially arranged at intervals along the circumferential direction of the first sleeve 5603; the number of first protruding portions 5721a and the number of first recessed portions 5721b on the first cam 5721 are identical to the number of third protruding portions 5734 and the number of third recessed portions 5735 on one of the abutment cams 5731, so that the first protruding portions 5721a are engaged with the third recessed portions 5735, and the third protruding portions 5734 are engaged with the first recessed portions 5721 b; the number of third protruding portions 5734 and the number of second recessed portions 5723b on the second cam 5723 are identical to the number of third protruding portions 5734 and the number of third recessed portions 5735 on the other abutting cam 5731, so that the second protruding portions 5723a are engaged with the third recessed portions 5735, and the third protruding portions 5734 are engaged with the second recessed portions 5723 b.
Optionally, the number of the third protruding portions 5734 and the number of the third recessed portions 5735 of the abutting cam 5731 may be set as required, for example, the abutting cam 5731 may include one third protruding portion 5734 and one third recessed portion 5735, two third protruding portions 5734 and two third recessed portions 5735, three third protruding portions 5734 and three third recessed portions 5735, or four third protruding portions 5734 and four third recessed portions 5735; in this embodiment, the abutment cam 5731 includes three third protruding portions 5734 and three third recessed portions 5735. The connecting strip 5732 is provided with two second connecting holes 5736, and the axial line of the second connecting holes 5736 is parallel to the axial line of the sliding cylinder 5730; opposite ends of the rotation shaft 5644 of the synchronizing gear 5642 are respectively inserted into the first connection hole 5654 and the second connection hole 5736. In this embodiment, the elastic member 575 includes a spring sleeved on each rotation shaft 561. The front surface of the supporting member 573 is provided with a second avoidance opening 5738, and the second avoidance opening 5738 is used for accommodating a bent bendable region.
Optionally, the positioning element 576 includes a positioning portion 5761 and two sliding portions 5763 connected to opposite sides of the positioning portion 5761, the two sliding portions 5763 are respectively slidably sleeved on a pair of rotating shafts 561, the elastic element 575 is sleeved on the rotating shafts 561, the elastic element 575 is clamped between the positioning element 576 and the supporting element 573, a third avoidance opening 5764 is disposed on the front surface of the positioning element 576, and the third avoidance opening 5764 is used for accommodating a bent bendable region; optionally, the inner surface of the third avoidance opening 5764 is an arc surface. In this embodiment, the positioning portion 5761 is a rectangular block, the sliding portion 5763 is a sliding piece protruding from a side portion of the rectangular block, the sliding piece is provided with second through holes 5765 along a length direction of the positioning portion 5761, the pair of rotation shafts 561 are respectively inserted into the two second through holes 5765, and the positioning portion 5761 is located between the pair of rotation shafts 561. Two escape holes 5766 are formed in one side of the positioning portion 5761 facing the synchronizing gear 5642, and one end of the rotation shaft 5644 of the synchronizing gear 5642 can be inserted into the two escape holes 5766 of the positioning portion 5761.
The friction assembly 577 includes a first friction member 5770, a spacer 578, a second friction member 5775 and a buckle 5779, wherein the first friction member 5770 and the spacer 578 are connected to the rotation shaft 561, the first friction member 5770 is clamped by the positioning member 576 and the spacer 578, the first friction member 5770 can rotate relative to the positioning member 576 and the spacer 578 along with the rotation shaft 561, and a friction resistance exists between the first friction member 5770 and the positioning member 576; the second friction member 5775 and the buckle 5779 are uniformly connected to the rotation shaft 561, the second friction member 5775 is clamped by the buckle 5779 and the gasket 578, and the second friction member 5775 can rotate relative to the gasket 578 along with the rotation shaft 561. In this embodiment, the friction assembly 577 includes a pair of first friction members 5770, a pair of second friction members 5775, and a pair of buckles 5779, wherein the pair of first friction members 5770 and the pair of second friction members 5775 are respectively sleeved on the two rotating shafts 561, and the pair of buckles 5779 are respectively engaged with the clamping grooves 5616 of the pair of rotating shafts 561; a pair of first friction members 5770 are held by the spacer 578 and the positioning member 576, and a pair of second friction members 5775 are held by the spacer 578 and the pair of snaps 5779. When the rotation shaft 561 rotates relative to the base 54, the first friction member 5770 and the second friction member 5775 rotate along with the rotation shaft 561, friction resistance is provided between the first friction member 5770 and the positioning member 576 and between the second friction member 5775 and the spacer 578. The catch 5779 may be, but is not limited to, a C-shaped catch or a U-shaped catch, etc., and the catch 5779 is adapted to be snapped into the catch slot 5616 of the rotating shaft 561.
Specifically, a first socket 5772 is formed in the middle of the first friction member 5770. The first friction member 5770 is fixedly coupled to the rotation shaft 561 through the first socket hole 5772. The side of the first friction member 5770 facing the positioning member 567 is provided with a first damping portion 5774 and/or the side of the first friction member 5770 facing away from the positioning member 576 is provided with a first damping portion 5774, the first damping portion 5774 being capable of increasing the friction resistance of the first friction member 5770. In this embodiment, opposite side surfaces of the first friction member 5770 are respectively provided with a first damping portion 5774. In this embodiment, the side of the positioning member 576 facing the first friction member 5770 is also provided with a damping portion, and the side of the first friction member 5770 facing the positioning member 576 is provided with a first damping portion 5774. Alternatively, the damping portion on the positioning member 576 may be omitted, leaving only the first friction member 5770 facing the first damping portion 5774 on the side of the positioning member 576. The first damping portion 5774 may be, but is not limited to, a roughened surface, a damping layer, a plurality of small protrusions or a plurality of small recessed protrusions, holes or roughened surfaces, etc. provided on the first friction member 5770.
The spacer 578 is slidably sleeved on the pair of rotation shafts 561, and the first friction member 5770 is disposed between the spacer 578 and the positioning member 576; when the first friction member 5770 rotates with the rotation shaft 561, there is frictional resistance between the first friction member 5770 and the positioning member 576, and there is frictional resistance between the first friction member 5770 and the spacer 578. Specifically, the spacer 578 is a strip-shaped plate, and the opposite ends of the spacer 578 are respectively provided with a spacer ring 578, and optionally, each spacer ring 578 may be respectively provided with a damping portion. The damping portion may be, but is not limited to, a protrusion, hole, roughened surface, or the like provided on the backing ring 5782. Alternatively, the damping portion of the washer 578 facing the side of the first friction member 5770 may be omitted, leaving only the first damping portion 5774 on the side of the first friction member 5770 facing the washer 578; or the first damping portion 5774 on the side of the first friction member 5770 facing the spacer 578 may be omitted, leaving only the damping portion of the spacer 578 facing the side of the first friction member 5770.
A second socket 5776 is formed in the middle of the second friction member 5775. The second friction member 5775 is fixedly coupled to the rotation shaft 561 through the second socket hole 5776. The side of the second friction member 5775 facing the spacer 578 is provided with a second damping portion 5778. In this embodiment, the opposite side surfaces of the second friction member 5775 are respectively provided with a second damping portion 5778, and the second damping portion 5778 may be, but is not limited to, a protrusion, a hole, a rough surface, or the like provided on the second friction member 5775. In this embodiment, the opposite sides of the second friction member 5775 are respectively provided with a plurality of holes, which can increase the friction resistance of the second friction member 5775. In this embodiment, the side of the spacer 578 facing the second friction member 5775 is provided with a damping portion, and the side of the second friction member 5775 facing the spacer 578 is provided with a second damping portion 5778. Optionally, the damping portion on the side of the spacer 578 facing the second friction member 5775 is omitted, leaving only the second damping portion 5778 on the side of the second friction member 5775 facing the spacer 578; or the second damping portion 5778 on the side of the second friction member 5775 facing the spacer 578 may be omitted, leaving only the damping portion on the side of the spacer 578 facing the second friction member 5775. The spacer 578 and the second friction member 5775 are abutted against each other, and when the second friction member 5775 rotates with the rotation shaft 561, there is frictional resistance between the second friction member 5775 and the spacer 578.
Referring to fig. 4-17, when assembling the folding device 50, the ends of the two rotation shafts 561 far away from the connecting cap 5612 are respectively inserted into the two first through holes 5652 of the fixing member 565 until the fixing member 565 stops against the connecting cap 5612; two synchronizing gears 5642 are engaged with each other and interposed between the first link 560 and the second link 562, and the two synchronizing gears 5642 are engaged with the first driving gear 5640 and the second driving gear 5641, respectively; the ends of the two rotation shafts 561 far from the connection cap 5612 are respectively inserted into the first sleeve 5603 and the second sleeve 5623, and the ends of the two rotation shafts 5644 of the gear assembly 564 near the fixing members 565 are respectively inserted into the two first connection holes 5654 of the fixing members 565. The two sliding cylinders 5730 of the supporting member 573 are respectively sleeved on the two rotating shafts 561, so that the two supporting cams 5731 are respectively engaged with the first cam 5721 and the second cam 5723 in a rotatable manner, the two rotating shafts 5644 are respectively inserted into the two second connecting holes 5736 of the supporting member 573, and the two rotating shafts 5644 respectively pass through the corresponding second connecting holes 5736; the two elastic pieces 575 are respectively sleeved on the two rotating shafts 561, and one ends of the two rotating shafts 561 provided with clamping grooves 5616 are respectively inserted into the two second through holes 5765 of the positioning piece 576, so that the two elastic pieces 575 are clamped between the supporting piece 573 and the positioning piece 576; the two first friction members 5770 are respectively sleeved on the two rotating shafts 561, the gasket 578 is sleeved on the two rotating shafts 561, the other two second friction members 5775 are respectively sleeved on the two rotating shafts 561, at this time, the gasket 578 is positioned between the first friction members 5770 and the second friction members 5775, and the clamping groove 5616 of each rotating shaft 561 exposes the corresponding second friction member 5775 away from the side surface of the positioning member 576; the two buckles 5779 are respectively engaged with the engaging grooves 5616 of the two rotating shafts 561. At this time, the first cam 5721 and the corresponding abutting cam 5731 on the rotating shaft 561 are coaxial and cooperate with each other, the second cam 5723 and the corresponding abutting cam 5731 on the other rotating shaft 561 are coaxial and cooperate with each other, the elastic member 575 is used for pushing the abutting member 573, so that the first cam 5721 and the second cam 5723 can respectively rotationally abut against the two abutting cams 5731, the two buckles 5779 respectively abut against the side surfaces of the two second friction members 5775 facing away from the positioning member 576, and the elastic member 575 is in a pressed state.
The first rotating portion 532 is accommodated in the first accommodating groove 541 on the side of the base 54, and the two first arcuate rails 5321 of the first rotating portion 532 are respectively rotatably accommodated in the two first arcuate grooves 5411 of the base 54; the second rotating portion 552 is accommodated in the second accommodating groove 543 on the opposite side of the base 54, and the two second circular arc rails 5521 of the second rotating portion 552 are respectively rotatably accommodated in the two second circular arc grooves 5431 of the base 54. The combination of the linkage mechanism 56 and the limiting mechanism 57 is placed at one end of the base 54, so that the two connecting caps 5612 are respectively inserted into the two first shaft holes 5451 of the base 54, and the end parts of the rotating shafts 5644 are respectively inserted into the two connecting holes 5453 of the base 54; the two bases 54 are respectively placed on the two connecting portions 5262 of the back cover 526, the plurality of locking pieces are respectively locked to the connecting holes 5265 of the corresponding connecting posts 5264 through the mounting holes 548 of the bases 54, the first side supporting pieces 523 and the second side supporting pieces 525 are respectively placed on two opposite sides of the bases 54, so that the first rotating rails 5330 at two opposite ends of the first connecting portions 533 are respectively accommodated in the corresponding first rotating grooves 5237, the second rotating rails 553 at two opposite ends of the second connecting portions 553 are respectively accommodated in the corresponding second rotating grooves 5257, the two first guiding rails 5600 of the first connecting members 560 are respectively inserted into the corresponding first guiding grooves 5230, and the two second guiding rails 5620 of the second connecting members 562 are respectively inserted into the corresponding second guiding grooves 5250. When the first side support 523 and the second side support 525 are in the completely flattened state, the front face of the first side support 523 and the front face of the second side support 525 are coplanar. When the first side supporting member 523 and the second side supporting member 525 are in the completely bent state, the first stop block 5323 abuts against the first positioning block 5413, and the second stop block 5523 abuts against the second positioning block 5433, so that the folding device 50 maintains the completely bent state, and the front surfaces of the first side supporting member 523 and the second side supporting member 525 enclose a droplet shape. The supporting mechanism 52 of the folding device 50 only comprises a first side supporting member 523 and a second side supporting member 525, the omitted middle supporting member is positioned between the first side supporting member 523 and the second side supporting member 525, the first side supporting member 523 is directly connected with the first connecting rod member 560 in a sliding manner, and the second side supporting member 525 is directly connected with the second connecting rod member 562 in a sliding manner, so that the number of kinematic pairs between the parts of the folding device 50 is reduced, the problem that the high kinematic pairs are easy to wear is avoided, and the folding device 50 has the advantages of saving the number of parts, improving the reliability of the folding device 50 and reducing the relative shaking of the parts in the folding device 50. Secondly, since the first rotating member 53 and the second rotating member 55 are respectively and stably connected with the base 54 in a rotating manner, the connection strength between the first arc rail 5321 and the second arc rail 5521 and the base 54 is relatively high, which is beneficial to reducing the problem that the first arc rail 5321 and the second arc rail 5521 fall and deform in the folding device 50.
When the folding device 50 is folded from the completely flattened state, the first rotating member 53 is folded towards the second rotating member 55 relative to the base 54, the first rotating member 53 drives the first side supporting member 523 to rotate towards the second side supporting member 525 relative to the base 54, the first side supporting member 523 drives the first connecting member 560 and the corresponding rotating shaft 561 to rotate towards the second connecting member 562 relative to the base 54, so as to drive the corresponding rotating shaft 561, the first driving gear 5640 and the corresponding pushing member 572 to rotate around the axial line of the rotating shaft 561, the rotating first driving gear 5640 drives the second driving gear 5641 to rotate through the synchronizing gear 5642, and the rotation of the second driving gear 5641 drives the corresponding rotating shaft 561, the second sleeve 5623 and the second connecting member 562 to rotate, so that the first connecting member 560 and the second connecting member 562 synchronously draw close to each other; meanwhile, the first cam 5721 on the first link member 560 and the second cam 5723 on the second link member 562 rotate relative to the abutting member 573, so that the first cam 5721 and the second cam 5723 rotationally abut against the two abutting cams 5731, the abutting member 573 slides along the axial direction of the rotation shaft 561 to press the elastic member 575, the elastic member 575 elastically abuts against the positioning member 576, so that the first friction member 5770 is clamped between the spacer 578 and the positioning member 576 and the second friction member 5775 is clamped between the spacer 578 and the buckle 5779, and the first friction member 5770 and the second friction member 5775 rotate along with the corresponding rotation shaft 561 relative to the positioning member 576 and the spacer 578.
In the bending process of the folding device 50, the axial forces of the first cam 5721, the corresponding abutting cam 5731, the first friction member 5770 and the second friction member 5775 sleeved on one rotating shaft 561 are equal to the elastic force of the elastic member 575, and the axial forces of the second cam 5723, the corresponding abutting cam 5731, the first friction member 5770 and the second friction member 5775 sleeved on the other rotating shaft 561 are equal to the elastic force of the elastic member 575; the friction torque force between the first cam 5721 and the corresponding abutting cam 5731, the friction torque force between the second cam 5723 and the corresponding abutting cam 5731, and/or the friction resistance of the first friction member 5770, and the friction resistance of the second friction member 5775 can limit the first rotation member 53 and the second rotation member 55 to a specific angle between 180 degrees and 0 degrees, and the rotation angles of the first rotation member 53 and the second rotation member 55 relative to the base 54 are 90 degrees, respectively; the rotation angle of the first side support 523 with respect to the base 54 is greater than 90 degrees, alternatively, the rotation angle of the first side support 523 with respect to the base 54 is 100 degrees to 110 degrees; the rotation angle of the first link 560 with respect to the base 54 is greater than 90 degrees, alternatively, the rotation angle of the first link 560 with respect to the base 54 is 100 degrees to 110 degrees, that is, the rotation angle of the first link 560 with respect to the base 54 is equal to the rotation angle of the first side support 523 with respect to the base 54; the rotation angle of the second side support 525 with respect to the base 54 is greater than 90 degrees, alternatively, the rotation angle of the second side support 525 with respect to the base 54 is 100 degrees to 110 degrees, that is, the rotation angle of the second link member 562 with respect to the base 54 is equal to the rotation angle of the second side support 525 with respect to the base 54; the second link member 562 is rotated at an angle greater than 90 degrees relative to the base 54, alternatively, the second link member 562 is rotated at an angle ranging from 100 degrees to 110 degrees relative to the base 54. When the included angle between the first rotating member 53 and the second rotating member 55 is 180 degrees, the first side supporting member 523 and the second side supporting member 525 are in a completely flattened state, and the front surface of the first side supporting member 523 is coplanar with the front surface of the second side supporting member 525. When the angle between the first rotating member 53 and the second rotating member 55 is 0 degrees, the first side supporting member 523 and the second side supporting member 525 are in a completely bent state, that is, the front surface of the first side supporting member 523 and the front surface of the second side supporting member 525 are combined to form an acute angle. In other usage modes, the first rotating member 53 and the second rotating member 55 can be rotated together in opposite directions, the first rotating member 53 rotates synchronously around the first axis L1 and the second rotating member 55 around the second axis L2 to be close to each other, so as to drive the first side supporting member 523 and the second side supporting member 525 to rotate relative to the base 54, the first side supporting member 523 drives the first connecting member 560 and the rotating shaft 561 to rotate around the first rotating axis P1, and the second side supporting member 525 drives the second connecting member 562 and the rotating shaft 561 to rotate around the second rotating axis P2, so as to drive the pair of rotating shafts 561, the first driving gear 5640, the second driving gear 5641 and the two pushing members 572 to rotate along the axes of the pair of rotating shafts 561, respectively; the first driving gear 5640 and the second driving gear 5641 together drive the two synchronizing gears 5642 to rotate, so that the first link 560 and the second link 562 are synchronously moved together; meanwhile, the first cam 5721 and the second cam 5723 respectively rotationally push the two pushing cams 5731, the pushing member 573 slides along the axial direction of the rotating shaft 561 to press the elastic member 575, the elastic member 575 elastically pushes the positioning member 576 to clamp the first friction member 5770 and the second friction member 5775, and the first friction member 5770 and the second friction member 5775 rotate along with the corresponding rotating shaft 561 relative to the positioning member 576 and the gasket 578.
When the folding device 50 is unfolded from the fully folded state, the first rotating member 53 is unfolded towards the second rotating member 55 relative to the base 54, the first rotating member 53 drives the first side supporting member 523 to rotate away from the second side supporting member 525 relative to the base 54, the first side supporting member 523 drives the first link member 560 and the corresponding rotating shaft 561 to rotate away from the second link member 562 relative to the base 54, and the rotating first driving gear 5640 drives the second driving gear 5641 to rotate through the synchronizing gear 5642, so that the first link member 560 and the second link member 562 are synchronously separated from each other; meanwhile, the first cam 5721 on the first link member 560 and the second cam 5723 on the second link member 562 rotate relative to the abutting member 573, so that the first cam 5721 and the second cam 5723 rotate relative to the two abutting cams 5731 of the abutting member 573, the two cams 5720 rotationally abut the two abutting cams 5731, the abutting member 573 slides along the axial direction of the rotating shaft 561 to press the elastic member 575, the elastic member 575 elastically abuts the positioning member 576, so that the first friction member 5770 is clamped between the spacer 578 and the positioning member 576, the second friction member 5775 is clamped between the spacer 578 and the buckle 5779, and the first friction member 5770 and the second friction member 5775 rotate along with the corresponding rotating shaft 561 relative to the positioning member 578 and the spacer 578. In the above process, the friction torque force between the first cam 5721 and the corresponding abutting cam 5731, the friction torque force between the second cam 5723 and the corresponding abutting cam 5731, and/or the friction resistance of the first friction member 5770, and the friction resistance of the second friction member 5775 can limit the first rotation member 53 and the second rotation member 55 to a specific angle between 0 degrees and 180 degrees.
In other usage modes, the first rotating member 53 and the second rotating member 55 can be rotated together in a direction away from each other, the first rotating member 53 rotates synchronously around the first axis L1 and the second axis L2 and away from each other, so as to drive the first side supporting member 523 and the second side supporting member 525 to rotate relative to the base 54, the first side supporting member 523 drives the first link member 560 and the rotating shaft 561 to rotate around the first rotation axis P1, and the second side supporting member 525 drives the second link member 562 and the rotating shaft 561 to rotate around the second rotation axis P2, so as to drive the pair of rotating shafts 561, the first driving gear 5640, the second driving gear 5641 and the two pushing members 572 to rotate along the axes of the pair of rotating shafts 561, respectively; the first driving gear 5640 and the second driving gear 5641 together drive the two synchronizing gears 5642 to rotate, so that the first link 560 and the second link 562 are far away from each other to be flattened; meanwhile, the first cam 5721 and the second cam 5723 respectively rotationally push the two pushing cams 5731, the pushing member 573 slides along the axial direction of the rotating shaft 561 to press the elastic member 575, the elastic member 575 elastically pushes the positioning member 576 to clamp the first friction member 5770 and the second friction member 5775, and the first friction member 5770 and the second friction member 5775 rotate along with the corresponding rotating shaft 561 relative to the positioning member 576 and the gasket 578.
In other embodiments, a middle support member that floats in a direction perpendicular to the front of the base 54 may be provided between the first side support member 523 and the second side support member 525, which moves toward the front of the base 54 during bending of the folding device 50 to make room for accommodating the bendable region 31 of the flexible screen 30; when the folding device 50 is in the flattening process, the middle support moves away from the front face of the base 54 such that the front face of the first side support 523, the front face of the second side support 525 and the front face of the middle support are coplanar to collectively support the bendable region 31 of the flexible screen 30.
Referring to fig. 1-5, the installed folding device 50 is disposed between two frames 21, two opposite sides of the folding device 50 are respectively accommodated in the positioning slots 216 of the two frames 21, such that one end of the two first rotating members 53 of one side of the folding device 50, which is far away from the base 54, is respectively positioned at the two positioning portions 217 of one of the frames 21, and one end of the two second rotating members 55 of the other side of the folding device 50, which is far away from the base 54, is respectively positioned at the two positioning portions 217 of the other frame 21. At this time, the first front surfaces 211 of the two frames 21, the front surfaces of the first side supports 523, and the front surfaces of the second side supports 525 are coplanar. The back surface of the flexible screen 30 is connected to the first front surface 211 of the two frames 21, the front surface of the first side support 523 and the front surface of the second side support 525, the bendable region 31 faces the folding device 50, and the two non-bendable regions 33 respectively face the first front surfaces 211 of the two frames 21.
Referring to fig. 1-3 and fig. 18-24, when the electronic device 100 is folded, a bending force is applied to at least one of the two frames 21 of the electronic device 100, so that the first rotating member 53 and the second rotating member 55 connected to the two frames 21 rotate in directions adjacent to each other, and the folding device 50 is folded by the two folding-assisting assemblies 51, so that the bendable region 31 is folded along with the supporting mechanism 52. Specifically, if a bending force is applied to one of the frames 21, the one of the frames 21 drives the first rotating member 53 to rotate toward the side close to the flexible screen 30 relative to the base 54; the first side support member 523 is driven to rotate relative to the base 54, the first side support member 523 drives the first link member 560 to rotate relative to the base 54 to a side close to the flexible screen 30 around the axis of the corresponding rotation shaft 561, meanwhile, the first slide guide rail 5600 of the first link member 560 slides in the first slide guide groove 5230 of the first side support member 523, the first sleeve 5603, the rotation shaft 561, the first driving gear 5640 and the first cam 5721 of the first link member 560 rotate around the axis of the corresponding rotation shaft 561, the rotating first driving gear 5640 drives the second driving gear 5641 to rotate through the synchronizing gear 5642, and the rotation of the second driving gear 5641 drives the corresponding rotation shaft 561, the second sleeve 5623, the second cam 5723 and the first link 5601 to rotate, so that the first link member 560 and the second link member 562 synchronously draw close to each other; meanwhile, the first cam 5721 and the second cam 5723 respectively rotationally push against the two pushing cams 5731, so that the pushing member 573 slides along the axial direction of the rotation shaft 561 to press the elastic member 575, the elastic member 575 elastically pushes against the positioning member 576 to clamp the first friction member 5770 between the gasket 578 and the positioning member 576 and clamp the first friction member 5770 between the gasket 578 and the buckle 5779, and the first friction member 5770 and the second friction member 5775 rotate along with the corresponding rotation shaft 561 relative to the gasket 578 and the positioning member 576. In the bending process of the electronic device 100, the first rotating member 53 and the second rotating member 55 rotate respectively relative to the base 54 to be close to each other, the first connecting member 560 and the second connecting member 562 rotate respectively relative to the base 54 to be close to each other, the first side supporting member 523 and the second side supporting member 525 rotate respectively relative to the base 54 to be close to each other, so as to achieve the bending state of the folding device 50, the two frames 21 are folded with each other along with the bending of the folding device 50, the bendable region 31 of the flexible screen 30 is bent along with the folding device 50 until each frame 21 is bent 90 degrees relative to the base 54, that is, the included angle between the two frames 21 is changed from 180 degrees to 0 degrees (that is, the first front surfaces 211 of the two frames 21 are parallel to each other), the front surfaces of the two non-bending regions 33 of the flexible screen 30 are attached to each other, the bendable region 31 is in a drop shape, and the back surfaces of the bendable region 31 are attached to the inner surfaces of the first position opening 5656, the inner surface of the second position avoiding opening 5738 and the inner surface of the third position avoiding opening 5764, so as to improve the local falling stress of the flexible screen 30.
During the bending process of the electronic device 100, the sum of the friction torque force between the first cam 5721 and the second cam 5723 and the two abutting cams 5731, the friction resistance of the first friction member 5770, and the friction resistance of the second friction member 5775 can limit the rebound of the flexible screen 30, so that the first side support 523 and the second side support 525 are positioned at a specific angle relative to the base 54, and the two frames 21 can be limited at a specific angle between 180 degrees and 0 degrees. When the two frames 21 are bent and limited at 0 degrees, the two non-bending areas 33 of the flexible screen 30 are parallel to each other; the bendable region 31 of the flexible screen 30 is bent to enclose a water drop shape, and the duty ratio of the bent bendable region 31 is reduced, so that the overall thickness of the electronic device 100 can be reduced. The first side supporting member 523 slides outwards relative to the first link member 560, and the second side supporting member 525 slides outwards relative to the second link member 562, so that the pressing of the base 54 to the bendable region 31 is reduced, the bending radius of the flexible screen 30 in the bending state of the bendable region 31 is increased, and the crease problem of the flexible screen 30 is improved. When the folding device 50 is in the fully folded state, the front surface of the first link 560 contacts the back surface of the water droplet-shaped bendable region 31, the front surface of the first link 560 is tangential to the back surface of the bendable region 31, the front surface of the second link 562 contacts the back surface of the water droplet-shaped bendable region 31, and the front surface of the second link 562 is tangential to the back surface of the bendable region 31; the first link 560 and the second link 562 partially support the flexible panel 30, improving the problem of large drop stress of the flexible panel 30.
In other bending modes of the electronic device 100, bending forces may be applied to the two frames 21 at the same time, and the two frames 21 may drive the first side supporting member 523 and the second side supporting member 525 to rotate relative to the side close to the flexible screen 30, respectively, so as to bend the electronic device 100 by the folding device 50.
When the electronic device 100 needs to be flattened, one of the frames 21 is pulled outwards, so that the first rotating member 53 and the second rotating member 55 connected to the two frames 21 rotate in directions away from each other. Specifically, an outward pulling force is applied to one of the frames 21 of the electronic device 100, wherein one of the frames 21 drives the first rotating member 53 to rotate relative to the base 54 to a side far from the flexible screen 30, so as to drive the first side supporting member 523 to rotate relative to the base 54, the first side supporting member 523 drives the first connecting member 560 to rotate relative to the base 54 about the axis of the corresponding rotating shaft 561 to a side far from the flexible screen 30, and simultaneously, the first slide guide rail 5600 of the first connecting member 560 slides in the first slide guide groove 5230 of the first side supporting member 523, the first sleeve 5603, the rotating shaft 561, the first driving gear 5640 and the first cam 5721 of the first connecting member 560 rotate about the axis of the corresponding rotating shaft 561, and the rotating first driving gear 5640 drives the second driving gear 5641 to rotate through the synchronizing gear 5642, and the rotation of the second driving gear 5641 drives the corresponding rotating shaft 561, the second sleeve 5623, the second cam 5723 and the first connecting member 5601 to synchronously move away from each other; meanwhile, the first cam 5721 and the second cam 5723 respectively rotationally push against the two pushing cams 5731, so that the pushing member 573 slides along the axial direction of the rotating shaft 561 to press the elastic member 575, the elastic member 575 elastically pushes against the positioning member 576 to clamp the first friction member 5770 between the gasket 578 and the positioning member 576 and clamp the first friction member 5770 between the gasket 578 and the buckle 5779, and the first friction member 5770 and the second friction member 5775 rotate along with the corresponding rotating shaft 561 relative to the gasket 578 and the positioning member 576; in the process of flattening the linkage 56, the first rotating member 53 and the second rotating member 55 rotate respectively relative to the base 54 and are away from each other, the first link member 560 and the second link member 562 rotate respectively relative to the base 54 and are away from each other, and the first side supporting member 523 and the second side supporting member 525 rotate respectively relative to the base 54 and are away from each other, so that the first side supporting member 523 and the second side supporting member 525 are away from each other, so that the folding device 50 is unfolded, and the bendable region 31 of the flexible screen 30 is unfolded along with the folding device 50 until the flexible screen 30 is flattened.
During the flattening process of the electronic device 100, the friction torsion between the first cam 5721 and the second cam 5723 and the two abutting cams 5731, and the friction torsion between the first friction member 5770 and the second friction member 5775 can limit the rebound of the flexible screen 30, so that the first side supporting member 523 and the second side supporting member 525 are positioned at a specific angle relative to the base 54, and can limit the two frames 21 at a specific angle between 0 degrees and 180 degrees.
In other bending modes of the electronic device 100, an outward pulling force may be applied to the two frames 21 at the same time, and the two frames 21 respectively drive the first rotating member 53 and the second rotating member 55 on opposite sides of the base 54 to rotate away from each other, so as to drive the first side supporting member 523 and the second side supporting member 525 on opposite sides of the base 54 to rotate towards a side far from the flexible screen 30, and the electronic device 100 is unfolded by the folding device 50.
According to the folding device 50 of the electronic equipment 100, synchronous bending or unfolding is realized through the folding assisting component 51, friction torsion between the first cam 5721 and the second cam 5723 and two propping cams 5731 and friction torsion between the first friction piece 5770 and the second friction piece 5775 can be realized, the bending of the electronic equipment 100 can be stably limited at a specific angle between 0 degrees and 180 degrees, and a hovering function of the whole machine is realized; second, the first link member 560 is directly slidably connected to the first side supporting member 523, the second link member 562 is directly slidably connected to the second side supporting member 525, that is, the first link member 560 is not required to be slidably connected to the first side supporting member 523 by the first rotating member 53, and the second link member 562 is not required to be slidably connected to the second side supporting member 525 by the second rotating member 55, so that kinematic pairs between the components of the folding device 50 are reduced, movement gaps of the folding device 50 are reduced, the allowable dislocation amount of the folding device 50 is reduced, and the supporting and protecting effects of the folding device on the flexible display screen can be enhanced.
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 (19)
1. A folding device, the folding device comprising:
a base;
the first rotating piece is rotatably connected to one side of the base;
the second rotating piece is rotationally connected to the opposite side of the base;
the linkage mechanism comprises a first connecting rod piece and a second connecting rod piece, the first connecting rod piece is rotationally connected to one side of the base, and the second connecting rod piece is rotationally connected to the opposite side of the base; and
the support mechanism comprises a first side support piece and a second side support piece, wherein the first side support piece is located on one side of the base, the second side support piece is located on the other opposite side of the base, one side, away from the base, of the first rotating piece is rotationally connected with the first side support piece, one side, away from the base, of the second rotating piece is rotationally connected with the second side support piece, one end, away from the base, of the first connecting rod piece is in sliding connection with the first side support piece, and one end, away from the base, of the second connecting rod piece is in sliding connection with the second side support piece.
2. The folding device of claim 1, wherein a first axis between the first rotating member and the base, a first axis of rotation between the first rotating member and the first side support, a second axis of rotation between the second rotating member and the base, a second axis of rotation between the second rotating member and the second side support, a first axis of rotation between the first link member and the base, and a second axis of rotation between the second link member and the base are spaced apart from one another in parallel, and a sliding direction of the first link member relative to the first side support and a sliding direction of the second link member relative to the second side support are perpendicular to the first axis.
3. The folding device of claim 1, wherein the first link member and the first side support are cooperatively connected by a first guide rail provided to one of the first link member and the first side support and a first guide groove provided to the other of the first link member and the first side support, the first guide rail sliding in the first guide groove when the first link member rotates relative to the base; the second connecting rod piece is connected with the second side supporting piece through the cooperation of second guide sliding rail and second guide sliding groove, the second guide sliding rail is located the second connecting rod piece with one of the second side supporting piece, the second guide sliding groove is located the second connecting rod piece with the other of the second side supporting piece, when the second connecting rod piece rotates for the base, the second guide sliding rail slides in the second guide sliding groove.
4. The folding device of claim 3, wherein the first side support includes a first support plate and a first support block provided on a first back surface of the first support plate, the first link member includes a first link, the first guide rail is provided on one of the first support block and the first link, and the first guide chute is provided on the other of the first support block and the first link; the second side support piece comprises a second support plate and a second support block arranged on the second back surface of the second support plate, the second connecting rod piece comprises a second connecting rod, the second guide sliding rail is arranged on one of the second support block and the second connecting rod, and the second guide sliding groove is arranged on the other of the second support block and the second connecting rod.
5. The folding device according to claim 4, wherein the first guide chute is provided on the first support block, the first guide rail is provided on the first link, and a length direction of the first guide chute is inclined to the first back surface; the second guide sliding groove is formed in the second supporting block, the second guide sliding rail is arranged on the second connecting rod, the length direction of the second guide sliding groove is inclined to the second back surface, and the length direction of the first guide sliding groove and the length direction of the second guide sliding groove are perpendicular to the first axis.
6. The folding device of claim 4, wherein the first guide chute is a first arcuate slot provided in the first support block, the first guide chute is a first arcuate rail provided in the first link, the first arcuate rail being slidably received in the first arcuate slot; the second guide sliding groove is a second arc-shaped groove arranged on the second supporting block, the second guide sliding rail is a second arc-shaped rail arranged on the second connecting rod, and the second arc-shaped rail is slidingly accommodated in the second arc-shaped groove.
7. The folding device of claim 1, wherein the first rotating member includes a first rotating portion and the second rotating member includes a second rotating portion; the base comprises a base body, wherein a first accommodating groove is formed in one side of the base body, a second accommodating groove is formed in the other opposite side of the base body, the first accommodating groove and the second accommodating groove are staggered in the first axis direction parallel to the rotation of the first rotating piece and the base body, the first rotating part is rotatably accommodated in the first accommodating groove, and the second rotating part is rotatably accommodated in the second accommodating groove.
8. The folding device according to claim 7, wherein one of an inner end surface of the first receiving groove of the base and the first rotating portion is provided with a first circular arc groove, and the other is provided with a first circular arc rail rotatably accommodated in the first circular arc groove; one of the inner end surface of the second accommodating groove of the base and the second rotating part is provided with a second circular groove, the other is provided with a second circular arc rail, the second circular arc rail is rotatably accommodated in the second circular arc groove, and the axial line interval of the first circular arc groove is parallel to the axial line of the second circular arc groove.
9. The folding device of claim 7, wherein orthographic projections of the first and second receiving slots on a plane perpendicular to the first axis at least partially overlap each other.
10. The folding apparatus according to claim 7, wherein the first rotating member further includes a first connecting portion connected to the first rotating portion, a first back surface of the first side supporting member is provided with a pair of first connecting blocks spaced apart from each other, the first connecting portion is located between the pair of first connecting blocks, one of the first connecting portion and the first connecting block is provided with a first rotating rail, the other one is provided with a first rotating groove, and the first rotating rail is rotatably accommodated in the first rotating groove; the second rotating piece further comprises a second connecting portion connected to the second rotating portion, a pair of second connecting blocks are arranged on the second back face of the second side portion supporting piece at intervals, the second connecting portions are located between the second connecting blocks, one of the second connecting portions and the second connecting blocks is provided with a second rotating rail, the other one of the second connecting portions and the second connecting blocks is provided with a second rotating groove, the second rotating rail is rotatably accommodated in the second rotating groove, and the axial intervals of the first rotating rails are parallel to the axial lines of the second rotating rail.
11. The folding device of claim 7, wherein an avoidance groove is formed in the middle of the front surface of the base, the avoidance groove penetrates through opposite end surfaces of the base in a direction parallel to the first axis, and the first accommodating groove and the second accommodating groove are both communicated with the avoidance groove.
12. The folding device of claim 11, wherein the inner surface of the relief groove is an arcuate surface.
13. The folding device of claim 4, wherein the first support plate is provided with a first tab protruding toward one side of the second support plate, the first support plate being co-planar with the first tab; the second supporting plate is provided with a second lug protruding towards one side of the first supporting plate, the second supporting plate and the second lug are in front, and when the supporting mechanism is in a flattening state, the first lug and the second lug are in front.
14. The folding device according to claim 1, wherein the linkage further comprises a pair of rotating shafts spaced in parallel, and a gear assembly disposed between the first and second link members, the first link member being connected to one of the rotating shafts, the second link member being connected to the other rotating shaft, the pair of rotating shafts being rotatably connected to opposite sides of one end of the base, the gear assembly comprising a first driving gear disposed on the first link member, a second driving gear disposed on the second link member, and a synchronizing gear disposed between the first and second link members, the first and second driving gears respectively engaging with the corresponding synchronizing gears.
15. The folding device according to claim 14, wherein the linkage further comprises a fixing member, the fixing member is sleeved on the pair of rotating shafts, the first connecting rod member comprises a first sleeve sleeved on one rotating shaft, the second connecting rod member comprises a second sleeve sleeved on the other rotating shaft, the first driving gear is arranged on the outer peripheral surface of the first sleeve, the second driving gear is arranged on the outer peripheral surface of the second sleeve, and the front surface of the fixing member is provided with a first avoidance opening.
16. The folding device according to claim 15, further comprising a limiting mechanism, wherein the limiting mechanism comprises a pushing member, a pushing member and an elastic member, the pushing member comprises a first cam arranged at one end of the first sleeve and/or a second cam arranged at one end of the second sleeve, the pushing member comprises two pushing cams sleeved on a pair of rotating shafts, the first cam is matched with one pushing cam to be pushed against, the second cam is matched with the other pushing cam to be pushed against, and the elastic member is used for pushing the pushing member to be pushed against the pushing member, and a second avoidance port is formed in the front face of the pushing member.
17. The folding device according to claim 16, wherein the limiting mechanism further comprises a positioning member, the positioning member comprises a positioning portion and two sliding portions connected to two opposite sides of the positioning portion, the two sliding portions are respectively slidably sleeved on the pair of rotating shafts, the elastic member is sleeved on the rotating shafts, the elastic member is clamped between the positioning member and the supporting member, and a third avoidance opening is formed in the front face of the positioning member.
18. A folding housing comprising a folding device according to any one of claims 1 to 17 and two frames, said folding device being located between two of said frames, said frames being connected to opposite sides of said folding device, respectively.
19. An electronic device comprising a flexible screen and the folding housing of claim 18, the flexible screen disposed on the folding housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311850057.6A CN117834765A (en) | 2023-12-28 | 2023-12-28 | Folding device, folding shell and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311850057.6A CN117834765A (en) | 2023-12-28 | 2023-12-28 | Folding device, folding shell and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117834765A true CN117834765A (en) | 2024-04-05 |
Family
ID=90505633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311850057.6A Pending CN117834765A (en) | 2023-12-28 | 2023-12-28 | Folding device, folding shell and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117834765A (en) |
-
2023
- 2023-12-28 CN CN202311850057.6A patent/CN117834765A/en active Pending
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