Folding device, folding shell and electronic equipment

Abstract

The invention provides a folding device which comprises a base, a rotating shaft, a first connecting rod piece, a first adjusting cylinder and an abutting piece, the rotating shaft is rotationally connected to the base, and the first connecting rod piece is connected to the rotating shaft; the first adjusting cylinder is connected to the first connecting rod piece, and the rotating shaft is sleeved with the first adjusting cylinder; the abutting piece comprises a first sliding cylinder arranged on the rotating shaft in a sliding and sleeving mode, the first adjusting cylinder and the first sliding cylinder are arranged in a sleeving mode, the first adjusting cylinder and the first sliding cylinder are connected in a matched mode through a first spiral groove and a first adjusting part, and the first adjusting cylinder rotates around the axis of the rotating shaft along with the first connecting rod piece. Therefore, the first adjusting part moves along the first spiral groove, and the abutting piece slides along the axis of the rotating shaft. The invention further provides a folding shell provided with the folding device and electronic equipment.

Description

Technical Field

[0001] The present invention relates to the field of electronic devices, and in particular, to a folding device for supporting a flexible screen, a folding housing provided with the folding device, and an electronic device provided with the folding housing. Background Art

[0002] Currently, folding electronic products with bendable flexible display screens are becoming increasingly popular among people. Folding electronic products in the prior art generally include a hinge mechanism, two frames respectively disposed on opposite sides of the hinge mechanism, and a flexible screen covering the front of the hinge mechanism and the two frames. The two frames are folded or flattened through the hinge mechanism. The torsion mechanism of the hinge mechanism generally relies on a spring pressing member to generate friction during the rotation process, and this friction is used to ensure the stability of the hinge mechanism during the rotation process. During the folding or unfolding process of the hinge mechanism, it generally relies on the friction and relative displacement change between cams to achieve the folded state, flattened state, and hovering state of the hinge mechanism. However, with the miniaturization development of the hinge mechanism, the volume of the cams becomes smaller, making the contact surfaces between the cams prone to wear, resulting in a decrease in the frictional resistance of the hinge mechanism during folding or unfolding, affecting the hovering effect of the hinge mechanism. Summary of the Invention

[0003] The present application provides a folding device, a folding housing provided with the folding device, and an electronic device provided with the folding housing.

[0004] A folding device provided by the present application includes a base, a rotating shaft, a first connecting rod member, a first adjusting cylinder, and a holding member. The rotating shaft is rotatably connected to the base, and the first connecting rod member is connected to the rotating shaft; the first adjusting cylinder is connected to the first connecting rod member, and the first adjusting cylinder is sleeved on the rotating shaft; the holding member includes a first sliding cylinder slidably sleeved on the rotating shaft, the first adjusting cylinder and the first sliding cylinder are sleeved with each other, and the first adjusting cylinder and the first sliding cylinder are connected through the cooperation of a first spiral groove and a first adjusting portion. The first adjusting cylinder rotates around the axis of the rotating shaft along with the first connecting rod member, so that the first adjusting portion moves along the first spiral groove, causing the holding member to slide along the axis of the rotating shaft.

[0005] The present application further provides a folding housing, which includes a folding device and two frames. The folding device includes a base, a rotating shaft, a first connecting rod, a first adjusting cylinder and a resisting member. The rotating shaft is rotatably connected to the base, and the first connecting rod is connected to the rotating shaft. The first adjusting cylinder is connected to the first connecting rod and sleeved on the rotating shaft. The resisting member includes a first sliding cylinder slidably sleeved on the rotating shaft. The first adjusting cylinder and the first sliding cylinder are sleeved with each other, and are connected by the cooperation of a first spiral groove and a first adjusting portion therebetween. The first adjusting cylinder rotates around the axis of the rotating shaft with the first connecting rod, so that the first adjusting portion moves along the first spiral groove, causing the resisting member to slide along the axis of the rotating shaft. The folding device is located between the two frames, and the two frames are respectively connected to opposite sides of the folding device.

[0006] The present application further provides an electronic device, which includes a flexible screen and a folding housing. The folding housing includes a folding device and two frames. The folding device includes a base, a rotating shaft, a first connecting rod, a first adjusting cylinder and a resisting member. The rotating shaft is rotatably connected to the base, and the first connecting rod is connected to the rotating shaft. The first adjusting cylinder is connected to the first connecting rod and sleeved on the rotating shaft. The resisting member includes a first sliding cylinder slidably sleeved on the rotating shaft. The first adjusting cylinder and the first sliding cylinder are sleeved with each other, and are connected by the cooperation of a first spiral groove and a first adjusting portion therebetween. The first adjusting cylinder rotates around the axis of the rotating shaft with the first connecting rod, so that the first adjusting portion moves along the first spiral groove, causing the resisting member to slide along the axis of the rotating shaft. The folding device is located between the two frames, and the two frames are respectively connected to opposite sides of the folding device. The flexible screen is arranged on the folding housing.

[0007] Compared with the prior art in which two cams rotate relative to each other to cause the resisting member to slide axially along the rotating shaft, in the folding device of the electronic device of the present invention, the resisting member and the first connecting rod are sleeved and cooperated through the first sliding cylinder and the first adjusting cylinder. Both the first sliding cylinder and the first adjusting cylinder are sleeved on the rotating shaft, and are connected by the cooperation of a first spiral groove and a first adjusting portion therebetween. The first adjusting portion rotates around the axis of the rotating shaft, and at the same time the first adjusting portion moves along the first spiral groove, so that the resisting member slides axially relative to the first connecting rod along the rotating shaft. Since the cams are omitted in the folding device of the present application, the problem of wear on the contact surfaces between the cams is avoided, so that the electronic device has a better folding feel and hovering effect, and is beneficial to the miniaturization development of the folding device. Description of the Drawings

[0008] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the implementation will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0009] Figure 1 It is a schematic perspective view of the three-dimensional structure of an electronic device in an embodiment of the present application;

[0010] Figure 2 is Figure 1 a schematic exploded perspective view of the three-dimensional structure of the electronic device in

[0011] Figure 3 is Figure 2 a further schematic exploded perspective view of the three-dimensional structure of the electronic device in

[0012] Figure 4 is Figure 3 an enlarged schematic perspective view of the three-dimensional structure of the folding device in

[0013] Figure 5 is Figure 4 a schematic perspective view of another angle of the three-dimensional structure of the folding device in

[0014] Figure 6 is Figure 4 a schematic exploded perspective view of the three-dimensional structure of the folding device in

[0015] Figure 7 is Figure 6 an enlarged schematic perspective view of the three-dimensional structure of the support mechanism in

[0016] Figure 8 is Figure 7 a schematic perspective view of another angle of the three-dimensional structure of the support mechanism in

[0017] Figure 9 is Figure 6 an enlarged schematic perspective view of the three-dimensional structure of one of the folding assistance components in

[0018] Figure 10 is Figure 9 a schematic exploded perspective view of the three-dimensional structure of the folding assistance component in

[0019] Figure 11 is Figure 10 a schematic perspective view of another angle of the three-dimensional structure of the folding assistance component in

[0020] Figure 12 is Figure 11 a schematic exploded perspective view of the three-dimensional structure of the base and the rotating mechanism in

[0021] Figure 13 is Figure 12 a three-dimensional structural schematic diagram of another perspective of the base and the rotating mechanism in

[0022] Figure 14 is Figure 11 a magnified three-dimensional structural schematic diagram of the linkage mechanism and the limiting mechanism in

[0023] Figure 15 is Figure 14 a three-dimensional structural schematic diagram of another perspective of the linkage mechanism and the limiting mechanism in

[0024] Figure 16 is Figure 14 a three-dimensional structural exploded schematic diagram of the linkage mechanism and the limiting mechanism in

[0025] Figure 17 is Figure 15 a three-dimensional structural exploded schematic diagram of the linkage mechanism and the limiting mechanism in

[0026] Figure 18 is Figure 16 a magnified three-dimensional structural diagram of the abutting member, the first link member, the second link member and the gear combination in

[0027] Figure 19 is Figure 9 one of the three-dimensional sectional views of the folding assistance component in

[0028] Figure 20 is Figure 9 another three-dimensional sectional view of the folding assistance component in

[0029] Figure 21 is Figure 9 yet another three-dimensional sectional view of the folding assistance component in

[0030] Figure 22 is Figure 9 still another three-dimensional sectional view of the folding assistance component in

[0031] Figure 23 is Figure 1 a three-dimensional structural schematic diagram of the folded state of the electronic device in

[0032] Figure 24 is Figure 23 a three-dimensional structural schematic diagram of the folding device in

[0033] Figure 25 is Figure 24 a three-dimensional structural schematic diagram of the folding assistance component in

[0034] Figure 26 is Figure 25 a three-dimensional structural schematic diagram of another perspective of the folding assistance component in

[0035] Figure 27 is Figure 25 a perspective cross-sectional view of one of the folding assisting components in

[0036] Figure 28 is Figure 25 another perspective cross-sectional view of the folding assisting components in

[0037] Figure 29 is Figure 25 yet another perspective cross-sectional view of the folding assisting components in

[0038] Figure 30 is Figure 25 still another perspective cross-sectional view of the folding assisting components in

[0039] Main reference numeral description:

[0040] 100, Electronic device; 20, Folding housing; 21, Frame; 211, First front; 212, First back; 214, Side; 215, End face; 216, Mounting groove; 217, Mounting part; 30, Flexible screen; 31, Bendable area; 33, Non-bendable area; 50, Folding device; 51, Folding assistance component; 52, Support mechanism; 521, Middle support; 5210, Connecting plate; 5212, Connecting hole; 5213, Extension plate; 23, Side support; 5230, Support plate; 5232, Connection area; 5233, First connection part; 5234, Rotation groove; 5236, Second connection part; 5237, Guide groove; 5237a, First positioning section; 5237b, Second positioning section; 53, Base; 531, First housing; 532, Arc groove; 530, Receiving groove; 531, Second housing; 5312, Positioning post; 5314, First receiving groove; 533, Mounting hole; 534, Second housing; 5342, Positioning hole; 5344, Second receiving groove; 535, First shaft hole; 536, Connecting hole; 537, Fixing hole; 55, Rotating mechanism; 550, Rotating part; 551, Rotating shaft; 552, First rotating part; 5522, Arc track; 553, Second rotating part; 5531, Lug; 5533, First connecting cylinder; 555, Connecting piece; 5550, Guide sliding groove; 5552, Receiving groove; 5553, Second connecting cylinder; 5554, Avoidance groove; 5556, Rotating track; 56, Linkage mechanism; 561, Rotating shaft; 5610, Shaft body; 5612, Connecting cap; 5613, Positioning part; 5615, Positioning surface; 5616, Card slot; 562, First link member; 5620, First guide sliding rail; 5621, First avoidance opening; 5622, First sleeve; 5623, First link; 5624, Second shaft hole; 5626, First limiting surface; 5627, Second limiting surface; 5628, First guide sliding shaft; 563, Second link member; 5630, Second guide sliding rail; 5631, Second avoidance opening; 5632, Second sleeve; 5633, Second link; 5634, Third shaft hole; 5638, Second guide sliding shaft; 564, Gear combination; 5641, Driving gear; 5643, Synchronous gear; 5644, Rotating shaft; 5646, Gear ring; 565, Fixing piece; 5652, First guide hole; 5654, First connecting hole; 5656, Positioning part; 5657, Positioning rod; 57, Limiting mechanism; 572, First adjusting cylinder; 5722, First adjusting part; 573, Holding part; 5731, First sliding cylinder; 5732, Connecting strip; 5733, Second sliding cylinder; 5734, First spiral groove; 5734a, First positioning end; 5734b, Second positioning end; 5735, Second spiral groove; 5735a, Third positioning end; 5735b, Fourth positioning end; 5736, Second connecting hole; 574, Second adjusting cylinder; 5742, Second adjusting part; 575, Elastic part; 576, Positioning piece;5760, guide sliding cylinder; 5763, positioning part; 5765, second guide hole; 5767, avoidance hole; 5768, first anti-sliding part; 577, friction assembly; 5770, friction part; 5772, positioning hole; 5774, second anti-sliding part; 5775, buckle; 59, back shell; 590, back plate; 591, accommodation space; 592, locking part; 594, connecting column; 5942, locking hole; 595, side plate; Detailed implementation manners

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] In addition, the descriptions of the following embodiments refer to the attached drawings for illustrating specific embodiments in which the present application can be implemented. The directional terms mentioned in the present application, for example, "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only references to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer description and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present application.

[0043] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "set on..." should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0044] Please refer to Figures 1 to 10, an electronic device 100 in an embodiment of the present invention includes a folding housing 20 and a flexible screen 30. The folding housing 20 includes two frame bodies 21 and a folding device 50 located between the two frame bodies 21. Opposite sides of the folding device 50 are respectively connected to the two frame bodies 21. The flexible screen 30 is disposed on the front surfaces of the two frame bodies 21 and the front surface of the folding device 50. The flexible screen 30 includes a bendable area 31 facing the front surface of the folding device 50, and two non-bendable areas 33 connected to opposite sides of the bendable area 31. The two non-bendable areas 33 are respectively connected to the front surfaces of the two frame bodies 21. The folding device 50 is used to support the bendable area 31 of the flexible screen 30. The folding device 50 includes a folding assistance component 51, a support mechanism 52, and a back shell 59. The folding assistance component 51 includes a base 53, a rotation mechanism 55, a linkage mechanism 56, and a limiting mechanism 57. The base 53 is positioned on the front surface of the back shell 59. The support mechanism 52 includes a middle support member 521 and side support members 523. The middle support member 521 is connected to the base 53. The side support members 523 are located on one side of the middle support member 521. In this embodiment, one side support member 523 is provided on each of the opposite sides of the middle support member 521. The linkage mechanism 56 includes a rotation shaft 561 and a first connecting rod member 562. The rotation shaft 561 is rotatably connected to the base 53. The first connecting rod member 562 is connected to the rotation shaft 561. The first connecting rod member 562 can rotate around the axis of the rotation shaft 561 along with the rotation shaft 561. The limiting mechanism 57 includes a first adjustment cylinder 572 and an abutting member 573. The first adjustment cylinder 572 is connected to the first connecting rod member 562 and sleeved on the rotation shaft 561. The abutting member 573 includes a first sliding cylinder 5731 slidably sleeved on the rotation shaft 561. The first adjustment cylinder 572 and the first sliding cylinder 5731 are sleeved on each other. The first adjustment cylinder 572 and the first sliding cylinder 5731 are connected through the cooperation of a first spiral groove and a first adjustment portion. The first spiral groove is provided on one of the first adjustment cylinder 572 and the first sliding cylinder 5731, and the first adjustment portion is provided on the other of the first adjustment cylinder 572 and the first sliding cylinder 5731. The first adjustment cylinder 572 rotates around the axis of the rotation shaft 561 along with the first connecting rod member 562, so that the first adjustment portion moves along the first spiral groove, causing the abutting member 573 to slide along the axis of the rotation shaft 561; that is, the movement of the first adjustment portion in the first spiral groove causes the first sliding cylinder 5731 to slide relative to the first adjustment cylinder 572 along the axis of the rotation shaft 561. When the folding device 50 is in a flattened state, the first adjustment cylinder 572 and the first sliding cylinder 5731 are completely sleeved; when the folding device 50 is in a folded state, the first sliding cylinder 5731 extends out of the first adjustment cylinder 572. It should be noted that the "front surface" refers to the surface facing the same direction as the light-emitting surface of the flexible screen 30, the "back surface" refers to the surface facing away from the light-emitting surface of the flexible screen 30, and the "specific angle" refers to the angle between the front surfaces of the two frame bodies 21 within the range of 0 degrees to 180 degrees.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, or any other product and component with a display function. In the description of the embodiments of the present invention, "connection" includes both direct connection and indirect connection. For example, the connection between A and B includes the direct connection between A and B or the connection through a third element C or more other elements. The connection also includes two cases of integrated connection and non-integrated connection. 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.

[0045] Compared with the prior art in which the mutual rotation of two cams is used to make the abutting member slide along the axial direction of the rotating shaft; in the folding device 50 of the electronic device 100 of the present invention, the abutting member 573 and the first link member 562 are sleeved and matched through the first sliding cylinder 5731 and the first adjusting cylinder 572. The first sliding cylinder 5731 and the first adjusting cylinder 572 are both sleeved on the rotating shaft 561, and the first adjusting cylinder 572 and the first sliding cylinder 5731 are connected through the cooperation of the first spiral groove and the first adjusting portion. The first adjusting portion rotates around the axis of the rotating shaft 561, and at the same time, the first adjusting portion moves along the first spiral groove, so that the abutting member 573 slides axially along the rotating shaft 561 relative to the first link member 562. Since the cam is omitted in the folding device 50 of the present application, the problem of wear on the contact surface between the cams is avoided, so that the electronic device 100 has a better folding feel and hovering effect, and is beneficial to the miniaturization development of the folding device 50.

[0046] Please refer to Figures 2 - 3 , the frame 21 includes a first front surface 211, a first back surface 212, opposite side surfaces 214 and opposite end surfaces 215. An installation groove 216 is provided on one side of the first front surface 211 close to the folding device 50. The opposite ends of the installation groove 216 respectively extend to be close to the two side surfaces 214, and one side of the installation groove 216 penetrates through the end surface 215 facing the folding device 50; the frame 21 is respectively provided with installation portions 217 at the opposite ends of the installation groove 216. Electronic devices such as a circuit board and a battery are arranged in the frame 21, and the electronic devices in the two frames are electrically connected through a flexible circuit board.

[0047] As Figures 3 - 8As shown in the figure, each folding assisting component 51 includes two rotating mechanisms 55 disposed on opposite sides of the base 53. Each rotating mechanism 55 includes a rotating member 550 and a connecting member 555. One end of the rotating member 550 is rotatably connected to the connecting member 555. The end of the rotating member 550 of one rotating mechanism 55 away from the connecting member 555 is rotatably connected to one side of the base 53, and the end of the rotating member 550 of the other rotating mechanism 55 away from the connecting member 555 is rotatably connected to the opposite side of the base 53. At least one folding assisting component 51 is provided on the back surface of the supporting mechanism 52. In this embodiment, folding assisting components 51 are respectively provided at opposite ends of the back surface of the supporting mechanism 52. In other embodiments, more than three folding assisting components 51 are provided on the back surface of the supporting mechanism 52, and the more than three folding assisting components 51 are arranged along the length direction of the supporting mechanism 52.

[0048] The middle supporting member 521 includes a rectangular connecting plate 5210 and extension plates 5213 connected to opposite ends of the connecting plate 5210. The extension plates 5213 are used to connect to the base 23. Connecting holes 5212 are respectively provided at opposite ends of the front surface of the connecting plate 5210. The locking member passes through the connecting holes 5212 and is connected to the folding assisting component 51. One side supporting member 523 is movably connected to the rotating mechanism 55 and the linkage mechanism 56 on one side of the base 53, and the other side supporting member 523 is movably connected to the rotating mechanism 55 and the linkage mechanism 56 on the opposite side of the base 53. The back surface of the foldable area 31 is attached to the front surfaces of the middle supporting member 521 and the side supporting members 523. The side rotating mechanism 55 on one side of the back shell 59 rotates relative to the base 53 and drives the side supporting member 523 on the other side to rotate synchronously relative to the base 53 through the linkage mechanism 56, so as to realize the synchronous unfolding or synchronous bending of the supporting mechanism 52, complete the synchronous folding or synchronous unfolding of the supporting mechanism 52, and the foldable area 31 is bent or flattened along with the supporting mechanism 52. When the folding device 50 is in a flattened state, the front surfaces of the middle supporting member 521 and the two side supporting members 523 are coplanar, and the foldable area 31 of the flexible screen 30 is attached to the front surface of the folding device 50, avoiding the appearance of light and shadow creases in the foldable area 31; when the folding device 50 is in a folded state, the side supporting members 523 are bent relative to the middle supporting member 521, and the front surfaces of the two side supporting members 523 and the front surface of the middle supporting member 521 enclose a water droplet-shaped space.

[0049] Each side support member 523 includes a rectangular support plate 5230 and a connection area 5232 provided on the back surface of the support plate 5230. In this embodiment, connection areas 5232 are respectively provided at opposite ends of the back surface of the support plate 5230, and the connection area 5232 is used to connect the corresponding rotating mechanism 55. Each connection area 5232 includes a pair of first connection portions 5233 and a second connection portion 5236 that are spaced apart from each other, and the second connection portion 5236 is located between the pair of first connection portions 5233. Each pair of first connection portions 5233 is provided with a pair of arc-shaped rotating grooves 5234, and the axes of the pair of rotating grooves 5234 are collinear. The rotating groove 5234 is located at one end of the first connection portion 5233 away from the middle support member 521. An arc-shaped guide groove 5237 is provided on the second connection portion 5236, and the middle of the guide groove 5237 is bent toward the side away from the back surface of the support plate 5230. The guide groove 5237 includes a first positioning section 5237a and a second positioning section 5237b located at opposite ends thereof, and the first positioning section 5237a is closer to the middle support member 521 than the second positioning section 5237b.

[0050] The back shell 59 is a rectangular frame, and the rectangular frame includes a rectangular back plate 590, two side plates 595 provided on opposite sides of the back plate 590, and two end plates provided at opposite ends of the back plate 590. The back plate 590, the two side plates 595, and the two end plates enclose a receiving space 591, and the receiving space 591 is used to receive the base 23. Optionally, locking portions 592 are respectively provided at opposite ends of the front surface of the back shell 59, and the bases 53 of the two folding assist assemblies 51 are respectively connected to the two locking portions 592 of the back shell 59. The locking portion 592 includes a plurality of connection posts 594 protruding from the inner surface of the back plate 590, each connection post 594 is located in the receiving space 591, and each connection post 594 is provided with a locking hole 5942 along its axial direction.

[0051] Please refer to Figures 6 - 13, rotating mechanisms 55 are respectively provided on opposite sides of the base 53. One end of the rotating member 550 of one rotating mechanism 55 away from the connecting member 555 is rotatably connected to one side of the base 53, and one end of the rotating member 550 of the other rotating mechanism 55 away from the connecting member 555 is rotatably connected to the opposite side of the base 53. The rotating member 550 includes a first rotating portion 552 and a second rotating portion 553. The first rotating portion 552 is located at one end of the rotating member 550, and the second rotating portion 553 is located at the opposite end of the rotating member 550. The first rotating portion 552 is rotatably connected to the base 53 through the cooperation of an arc track and an arc groove. The arc groove is provided in one of the base 53 and the first rotating portion 552, and the arc track is provided in the other of the base 53 and the first rotating portion 552. The axis line of the arc groove is collinear with the axis line of rotation between the rotating member 550 and the base 53. In this embodiment, receiving grooves 530 are respectively provided on opposite sides of the front surface of the base 53. The first rotating portion 552 of one rotating member 550 is rotatably received in one of the receiving grooves 530, and the first rotating portion 552 of the other rotating member 550 is rotatably received in the other receiving groove 530. Arc grooves 532 are respectively provided on two opposite inner end surfaces of each receiving groove 530. The two arc grooves 532 at opposite ends of each receiving groove 530 are coaxial. Opposite ends of each arc groove 532 penetrate through the front surface of the base 53. Arc tracks 5522 are respectively provided on two opposite end surfaces of the first rotating portion 552. The two arc tracks 5522 are coaxial. When the first rotating portion 552 is received in the corresponding receiving groove 530, the two arc tracks 5522 are respectively rotatably received in the two arc grooves 532. The second rotating portion 553 is rotatably connected to the connecting member 555 through a rotating shaft 551.

[0052] The base 53 includes a first base body 531 and a second base body 534 connected to the first base body 531. Specifically, the first base body 531 and the second base body 534 are connected by a positioning column and a positioning hole. The positioning column is provided on one of the first base body 531 and the second base body 534, and the positioning hole is provided on the other of the first base body 531 and the second base body 534. In this embodiment, a positioning column 5312 is provided on a side of the first base body 531 facing the second base body 534, and a positioning hole 5342 is provided on a side of the second base body 534 facing the first base body 531. First receiving grooves 5314 are provided at opposite ends of a side of the front of the first base body 531 close to the second base body 534, and second receiving grooves 5344 are provided at opposite ends of a side of the front of the second base body 534 close to the first base body 531. When the first seat body 531 is connected to the second seat body 534, the first receiving groove 5314 and the second receiving groove 5344 on the same side of the base 53 form a receiving groove 530. The first seat body 531 is provided with an arc groove 532 on the end surface of each first receiving groove 5314, and the axes of the two arc grooves 532 are spaced parallel; the second seat body 534 is provided with an arc groove 532 on the end surface of each second receiving groove 5344, and the axes of the two arc grooves 532 are spaced parallel. The front surface of the base 53 is provided with a mounting hole 533, and the locking piece passes through the mounting hole 533 and is locked in the locking hole 5942 of the connecting column 594 of the back shell 59, so that the base 53 is fixedly connected to the back shell 59. The end surface of the second base body 534 facing the linkage mechanism 56 is provided with two first axial holes 535, two connecting holes 536 and a fixing hole 537. The two first axial holes 535 are located on opposite sides of the base 53, the two connecting holes 536 are located between the two first axial holes 535, and the fixing hole 537 is located between the two connecting holes 536. The axis lines of the two first axial holes 535 and the two connecting holes 536 are parallel to the rotation axis line between the rotating member 550 and the base 53.

[0053] The second rotating part 553 is provided with a lug 5531 at one end away from the first rotating part 552, and a receiving groove 5552 is provided at one end of the connecting member 555, and the lug 5531 is rotatably accommodated in the receiving groove 5552. The rotating member 550 further includes a first connecting tube 5533, which is connected to the end of the lug 5531 away from the first rotating part 552; the connecting member 555 includes a second connecting tube 5553, which is provided at one end of the connecting member 555, and the receiving groove 5552 penetrates the second connecting tube 5553 along the radial direction of the second connecting tube 5553, and the first connecting tube 5533 and the second connecting tube 5553 are engaged with each other, so that the first connecting tube 5533 and the second connecting tube 5553 are coaxial, and the rotating shaft 551 is penetrated through the inner cavity of the first connecting tube 5533 and the inner cavity of the second connecting tube 5553.

[0054] like Figures 9 - 11 and Figures 14 - 18As shown, two mutually spaced rotating shafts 561 of the linkage mechanism 56 are respectively rotatably connected to the base 53. The linkage mechanism 56 further includes a second link member 563, a second adjusting cylinder 574, and a gear combination 564. The first link member 562 is connected to one of the rotating shafts 561, the second link member 563 is connected to the other rotating shaft 561, and the gear combination 564 is disposed between the first link member 562 and the second link member 563. The second adjusting cylinder 574 is connected to the second link member 563. The abutting member 573 further includes a second sliding cylinder 5733. The first sliding cylinder 5731 and the second sliding cylinder 5733 are located at opposite ends of the abutting member 573. The first sliding cylinder 5731 is slidably sleeved on one of the rotating shafts 561, and the second sliding cylinder 5733 is slidably sleeved on the other rotating shaft 561. The first adjusting cylinder 572 and the first sliding cylinder 5731 are sleeved with each other, and the second adjusting cylinder 574 and the second sliding cylinder 5733 are sleeved with each other. The first adjusting cylinder 572 and the first sliding cylinder 5731 are connected by the cooperation of a first spiral groove 5734 and a first adjusting portion 5722. The second adjusting cylinder 574 and the second sliding cylinder 5733 are connected by the cooperation of a second spiral groove 5735 and a second adjusting portion 5742. The second adjusting cylinder 574 rotates around the axis of the corresponding rotating shaft 561 with the second link member 563, so that the second adjusting portion 5742 moves along the second spiral groove 5735. The gear combination 564 includes two driving gears 5641 and a synchronous gear 5643 that meshes with each other. One of the driving gears 5641 is disposed on the first link member 562, and the other driving gear 5641 is disposed on the second link member 563. Each driving gear 5641 meshes with the corresponding synchronous gear 5643. The first link member 562 and the second link member 563 can rotate synchronously through the gear combination 564 to drive the two rotating shafts 561 to rotate synchronously.

[0055] The rotating shaft 561 includes a shaft body 5610 and a connecting cap 5612 located at one end of the shaft body 5610. A positioning portion 5613 is provided at the shaft body 5610 near the connecting cap 5612. One of the rotating shafts 561 is fixedly connected to the first link member 562 through its positioning portion 5613, and the other rotating shaft 561 is fixedly connected to the second link member 563 through its positioning portion 5613. Specifically, the positioning portion 5613 is a positioning groove provided on the outer wall of the shaft body 5610, and the length direction of the positioning groove is parallel to the axial direction of the shaft body 5610. The connecting cap 5612 is a cylindrical block, and this cylindrical block is used for rotatably connecting to the base 53. A positioning surface 5615 is provided at the end of the outer peripheral surface of the shaft body 5610 away from the connecting cap 5612, and the positioning surface 5615 is parallel to the axial direction of the rotating shaft 561. A clamping groove 5616 is provided at the end of the shaft body 5610 away from the connecting cap 5612, and the clamping groove 5616 is located on the outer peripheral wall of the shaft body 5610 and surrounds the circumference of the shaft body 5610.

[0056] One end of the first link member 562 away from the base 53 is slidably connected to one end of the corresponding connecting member 555 away from the rotating member 550 through the cooperation of a guide chute and a guide rail. The guide chute is provided on one of the first link member 562 and the corresponding connecting member 555, and the guide rail is provided on the other of the first link member 562 and the corresponding connecting member 555. One end of the second link member 563 away from the base 53 is slidably connected to one end of the corresponding connecting member 555 away from the rotating member 550 through the cooperation of a guide chute and a guide rail. The guide chute is provided on one of the second link member 563 and the corresponding connecting member 555, and the guide rail is provided on the other of the second link member 563 and the corresponding connecting member 555. In this embodiment, a guide chute 5550 is formed on the connecting member 555, and a first guide rail 5620 is provided at one end of the first link member 562 away from the base 53. The first guide rail 5620 slidably penetrates through the guide chute 5550. A second guide rail 5630 is provided at one end of the second link member 563 away from the base 53. The second guide rail 5630 slidably penetrates through the guide chute 5550. Specifically, an avoidance groove 5554 is provided at one end of the front surface of the connecting member 555 away from the rotating member 550, and guide chutes 5550 are respectively provided on opposite side surfaces of the connecting member 555 in the avoidance groove 5554. Rotating rails 5556 are respectively provided at opposite ends of the connecting member 555, and the two rotating rails 5556 are respectively rotatably received in two rotating grooves 5234, so that the side support member 523 is rotatably connected to the connecting member 555.

[0057] In some embodiments, rotating grooves are respectively provided at opposite ends of the connecting member 555, and the side support member 523 is provided with rotating rails corresponding to the rotating grooves of the connecting member 555. The rotating rails are rotatably received in the corresponding rotating grooves, so that the side support member 523 is rotatably connected to the connecting member 555.

[0058] The first helical groove 5734 includes a first positioning end 5734a and a second positioning end 5734b located at its opposite ends. The first positioning end 5734a is farther from the base 53 than the second positioning end 5734b. When the first adjusting portion 5722 is positioned at the first positioning end 5734a, the first link member 562 is flattened relative to the base 53. When the first adjusting portion 5722 is positioned at the second positioning end 5734b, the first link member 562 is bent relative to the base 53. When the first adjusting portion 5722 moves from the first positioning end 5734a to the second positioning end 5734b, the abutting member 573 slides axially along the rotation axis 561 in a direction away from the first link member 562, and the first link member 562 changes from a flattened state to a bent state relative to the base 53. When the first adjusting portion 5722 moves from the second positioning end 5734b to the first positioning end 5734a, the abutting member 573 slides axially along the rotation axis 561 in a direction approaching the first link member 562, and the first link member 562 changes from a bent state to a flattened state relative to the base 53. The second helical groove 5735 includes a third positioning end 5735a and a fourth positioning end 5735b located at its opposite ends. The third positioning end 5735a is farther from the base 53 than the fourth positioning end 5735b. When the second adjusting portion 5742 is positioned at the third positioning end 5735a, the second link member 563 is flattened relative to the base 53. When the second adjusting portion 5742 is positioned at the fourth positioning end 5735b, the second link member 563 is bent relative to the base 53. When the second adjusting portion 5743 moves from the third positioning end 5735a to the fourth positioning end 5735b, the abutting member 573 slides axially along the rotation axis 561 in a direction away from the second link member 563, and the second link member 563 changes from a flattened state to a bent state relative to the base 53. When the second adjusting portion 5743 moves from the fourth positioning end 5735b to the third positioning end 5735a, the abutting member 573 slides axially along the rotation axis 561 in a direction approaching the second link member 563, and the second link member 563 changes from a bent state to a flattened state relative to the base 53.

[0059] In this embodiment, the inner diameter of the first adjusting cylinder 572 is slightly larger than the outer diameter of the first sliding cylinder 5731, so that the first adjusting cylinder 572 is rotatably sleeved on the first sliding cylinder 5731. The first helical groove 5734 is provided on one of the first sliding cylinder 5731 and the first adjusting cylinder 572, and the first adjusting portion 5722 is provided on the other of the first sliding cylinder 5731 and the first adjusting cylinder 572. The inner diameter of the second adjusting cylinder 574 is slightly larger than the outer diameter of the second sliding cylinder 5733, so that the second adjusting cylinder 574 is rotatably sleeved on the second sliding cylinder 5733. The second helical groove 5735 is provided on one of the second sliding cylinder 5733 and the second adjusting cylinder 574, and the second adjusting portion 5742 is provided on the other of the second sliding cylinder 5733 and the second adjusting cylinder 574.

[0060] Optionally, the first helical groove 5734 is provided on the outer peripheral surface of the first sliding cylinder 5731, the first adjusting portion 5722 is a first adjusting shaft provided on the inner peripheral surface of the first adjusting cylinder 572, the first adjusting portion 5722 is located at an end far from the base 53, the axis of the first adjusting shaft is perpendicular to the axis of the first adjusting cylinder 572, that is, the axis of the first adjusting shaft is parallel to the radial direction of the first adjusting cylinder 572, and the first adjusting shaft is movably inserted into the first helical groove 5734. The second helical groove 5735 is provided on the outer peripheral surface of the second sliding cylinder 5733, the second adjusting portion 5742 is a second adjusting shaft provided on the inner peripheral surface of the second adjusting cylinder 574, the second adjusting portion 5742 is located at an end far from the base 53, the axis of the second adjusting shaft is perpendicular to the axis of the second adjusting cylinder 574, that is, the axis of the second adjusting shaft is parallel to the radial direction of the second adjusting cylinder 574, and the second adjusting shaft is movably inserted into the second helical groove 5735.

[0061] In other embodiments, the inner peripheral surface of the first adjusting cylinder 572 is provided with a first helical groove, the outer peripheral surface of the first sliding cylinder 5731 is provided with a first adjusting portion, the first adjusting cylinder 572 is sleeved on the first sliding cylinder 5731, and the first adjusting portion is slidably inserted into the first helical groove; the inner peripheral surface of the second adjusting cylinder 574 is provided with a second helical groove, the outer peripheral surface of the second sliding cylinder 5733 is provided with a second adjusting portion, the second adjusting cylinder 574 is sleeved on the second sliding cylinder 5733, and the second adjusting portion is slidably inserted into the second helical groove.

[0062] In other embodiments, the outer diameter of the first adjusting cylinder 572 is slightly smaller than the inner diameter of the first sliding cylinder 5731, so that the first sliding cylinder 5731 is sleeved on the first adjusting cylinder 572, the first helical groove is provided on one of the outer peripheral surface of the first adjusting cylinder 572 and the inner peripheral surface of the first sliding cylinder 5731, and the first adjusting portion is provided on the other of the outer peripheral surface of the first adjusting cylinder 572 and the inner peripheral surface of the first sliding cylinder 5731; when the first sliding cylinder 5731 is sleeved on the first adjusting cylinder 572, the first adjusting portion is slidably received in the first helical groove. Optionally, the outer peripheral surface of the first adjusting cylinder 572 is provided with a first helical groove, and the inner peripheral surface of the first sliding cylinder 5731 is provided with a first adjusting portion; or the outer peripheral surface of the first adjusting cylinder 572 is provided with a first adjusting portion, and the inner peripheral surface of the first sliding cylinder 5731 is provided with a first helical groove.

[0063] In other embodiments, the outer diameter of the second adjusting cylinder 574 is slightly smaller than the inner diameter of the second sliding cylinder 5733, so that the second sliding cylinder 5733 can be sleeved on the second adjusting cylinder 574. The second spiral groove is provided on one of the outer peripheral surface of the second adjusting cylinder 574 and the inner peripheral surface of the second sliding cylinder 5733, and the second adjusting portion is provided on the other of the outer peripheral surface of the second adjusting cylinder 574 and the inner peripheral surface of the second sliding cylinder 5733. When the second sliding cylinder 5733 is sleeved on the second adjusting cylinder 574, the second adjusting portion is slidably received in the second spiral groove. Optionally, the outer peripheral surface of the second adjusting cylinder 574 is provided with the second spiral groove, and the inner peripheral surface of the second sliding cylinder 5733 is provided with the second adjusting portion; or the outer peripheral surface of the second adjusting cylinder 574 is provided with the second adjusting portion, and the inner peripheral surface of the second sliding cylinder 5733 is provided with the second spiral groove.

[0064] The first connecting rod 562 further includes a first sleeve 5622 and a first connecting rod 5623 connected to the outer peripheral wall of the first sleeve 5622. One end of the first adjusting cylinder 572 is connected to one end of the first sleeve 5622. The first adjusting cylinder 572 and the first sleeve 5622 are coaxial. The first sleeve 5622 can be sleeved on the positioning portion 5613 of the shaft body 5610. Specifically, the first sleeve 5622 has a non-circular second shaft hole 5624. After the rotating shaft 561 is inserted into the second shaft hole 5624 of the first sleeve 5622 and the inner cavity of the first adjusting cylinder 572, the first sleeve 5622 can be positioned on the positioning portion 5613. The first sleeve 5622, the first adjusting cylinder 572 and the rotating shaft 561 can rotate together around the axis of the rotating shaft 561. The second connecting rod 563 further includes a second sleeve 5632 and a second connecting rod 5633 connected to the outer peripheral wall of the second sleeve 5632. One end of the second adjusting cylinder 574 is connected to one end of the second sleeve 5632. The second adjusting cylinder 574 and the second sleeve 5632 are coaxial. The second sleeve 5632 can be sleeved on the positioning portion 5613 of the shaft body 5610. Specifically, the second sleeve 5632 has a non-circular third shaft hole 5634. After the rotating shaft 561 is inserted into the third shaft hole 5634 of the second sleeve 5632 and the inner cavity of the second adjusting cylinder 574, the second sleeve 5632 can be positioned on the positioning portion 5613. The second sleeve 5632, the second adjusting cylinder 574 and the rotating shaft 561 can rotate together around the axis of the rotating shaft 561. One of the driving gears 5641 is disposed on the outer peripheral wall of the first sleeve 5622 away from the first connecting rod 5623, and the axis line of one of the driving gears 5641 is collinear with the axis line of the first sleeve 5622; the other driving gear 5641 is disposed on the outer peripheral wall of the second sleeve 5632 away from the second connecting rod 5633, and the axis line of the other driving gear 5641 is collinear with the axis line of the second sleeve 5632. The first connecting rod 5623 is provided with a first avoidance opening 5621 at one end away from the first sleeve 5622, and a first guide slide shaft 5628 is provided on one inner side of the first avoidance opening 5621, and the axis of the first guide slide shaft 5628 is parallel to the axis of the first sleeve 5622; the second connecting rod 5633 is provided with a second avoidance opening 5631 at one end away from the second sleeve 5632, and a second guide slide shaft 5638 is provided on one inner side of the second avoidance opening 5631, and the axis of the second guide slide shaft 5638 is parallel to the axis of the second sleeve 5632. The first guide slide rails 5620 are respectively protruded on the opposite sides of the first connecting rod 5623, and the first guide slide rails 5620 extend along the length direction of the first connecting rod 5623; the second guide slide rails 5630 are respectively protruded on the opposite sides of the second connecting rod 5633, and the second guide slide rails 5630 extend along the length direction of the second connecting rod 5633.

[0065] In other embodiments, first guide slide grooves are respectively provided on opposite sides of the first connecting rod 5623, and first guide slide rails are respectively provided on opposite sides of the avoidance groove 5554 of the connecting member 555. When the first connecting rod 5623 is accommodated in the receiving groove 5552 of the connecting member 555, the two first guide slide rails are respectively slidably inserted in the two first guide slide grooves. Second guide slide grooves are respectively provided on opposite sides of the second connecting rod 5633, and second guide slide rails are respectively provided on opposite sides of the avoidance groove 5554 of the connecting member 555. When the second connecting rod 5633 is accommodated in the receiving groove 5552 of the connecting member 555, the two second guide slide rails are respectively slidably inserted in the two second guide slide grooves.

[0066] The synchronous gear 5643 includes a rotating shaft 5644 and a gear ring 5646. The gear ring 5646 is fixedly sleeved on the rotating shaft 5644. The opposite ends of the rotating shaft 5644 extend out of the opposite ends of the gear ring 5646. In this embodiment, the gear assembly 564 includes a pair of synchronous gears 5643 meshing with each other, and the pair of synchronous gears 5643 are respectively meshed with two driving gears 5641.

[0067] The linkage mechanism 56 also includes a fixing member 565, which is a strip-shaped positioning piece. The fixing member 565 has first guide holes 5652 at opposite ends. The shaft bodies 5610 of the two rotating shafts 561 are respectively inserted into the two first guide holes 5652. The two rotating shafts 561 can rotate in the two first guide holes 5652 respectively, and the fixing member 565 can only slide along the axial direction of the two rotating shafts 561. Two first connecting holes 5654 are spaced apart in the middle of the fixing member 565 between the two first guide holes 5652, and the axis center line of the first guide hole 5652 is parallel to the axis center line of the first connecting hole 5654. A positioning portion 5656 is provided on the side of the fixing member 565 facing the connecting rod 562. The connecting rod 562 includes a first limiting surface 5626 and a second limiting surface 5627. When the two connecting rods 562 are folded relative to the base 53, the positioning portion 5656 abuts against the first limiting surface 5626. When the two connecting rods 562 are flattened relative to the base 53, the positioning portion 5656 abuts against the second limiting surface 5627. A positioning rod 5657 is provided on the side of the fixing member 565 away from the positioning portion 5656. The positioning rod 5657 is used to be positioned on the base 53. The two opposite end surfaces of the fixing member 565 are arc surfaces.

[0068] The abutting member 573 further includes a connecting strip 5732 connecting the first sliding cylinder 5731 and the second sliding cylinder 5733. The first sliding cylinder 5731 and the second sliding cylinder 5733 are located on the same side of the connecting strip 5732. The axis of the first sliding cylinder 5731 is parallel to the axis of the second sliding cylinder 5733 at an interval. The rotation direction of the first helical groove 5734 is opposite to the rotation direction of the second helical groove 5735. The first positioning end 5734a of the first helical groove 5734 and the third positioning end 5735a of the second helical groove 5735 are both located at one end close to the connecting strip 5732, and the second positioning end 5734b of the first helical groove 5734 and the fourth positioning end 5735b of the second helical groove 5735 are both located at one end far from the connecting strip 5732. The inner cavities of the first sliding cylinder 5731 and the second sliding cylinder 5733 respectively penetrate through the connecting strip 5732. The first sliding cylinder 5731 is slidably sleeved on one of the rotating shafts 561, and the second sliding cylinder 5733 is slidably sleeved on the other rotating shaft 561. The two rotating shafts 561 can respectively rotate in the inner cavities of the first sliding cylinder 5731 and the second sliding cylinder 5733, and the abutting member 573 can slide along the axial direction of the rotating shaft 561. The connecting strip 5732 is provided with two second connecting holes 5736. The two second connecting holes 5736 are located between the first sliding cylinder 5731 and the second sliding cylinder 5733, and the axis line of the second connecting hole 5736 is parallel to the axis line of the first sliding cylinder 5731. In this embodiment, the elastic member 575 is a spring sleeved on each rotating shaft 561.

[0069] The limiting mechanism 57 further includes an elastic member 575, a positioning member 576 and a friction assembly 577. The elastic member 575 is clamped between the abutting member 573 and the positioning member 576, and the abutting member 573 axially slides along the rotating shaft 561 to abut against the elastic member 575. The positioning member 576 includes two guiding cylinders 5760 spaced apart from each other and a positioning portion 5763 connecting the two guiding cylinders 5760. The two guiding cylinders 5760 are respectively slidably sleeved on the two rotating shafts 561, and the elastic member 575 is clamped between the connecting strip 5732 and the guiding cylinder 5760. Specifically, the positioning portion 5763 is a rectangular positioning block, and the two guiding cylinders 5760 are arranged on opposite sides of the positioning block. The guiding cylinder 5760 is provided with a second guiding hole 5765 along its axial direction, and each rotating shaft 561 can rotate in the corresponding second guiding hole 5765. The positioning member 576 can only slide along the axial direction of the two rotating shafts 561. Optionally, two avoiding holes 5767 are provided on one side of the positioning portion 5763 facing the synchronous gear 5643, and one end of the rotating shafts 5644 of the two synchronous gears 5643 can be respectively inserted into the two avoiding holes 5767 of the positioning portion 5763. The side surface of the guiding cylinder 5760 facing the friction assembly 577 is provided with a first anti-sliding portion 5768. The first anti-sliding portion 5768 can be but is not limited to a rough surface, a damping layer, a plurality of small protrusions or a plurality of small concave convex portions, holes or rough surfaces, etc.

[0070] The friction assembly 577 includes at least a pair of friction members 5770 and a pair of buckles 5775. At least a pair of friction members 5770 are respectively sleeved on two rotating shafts 561. A pair of buckles 5775 are respectively clamped in the card slots 5616 of the two rotating shafts 561, so that the two friction members 5770 are respectively clamped between the two guide cylinders 5760 and the two buckles 5775. When the rotating shaft 561 rotates relative to the base 53, each friction member 5770 and the corresponding rotating shaft 561 can rotate together around the axis of the rotating shaft 561, and there is a frictional resistance between the friction member 5770 and the positioning member 576. A positioning hole 5772 is formed in the middle of the friction member 5770, and the friction member 5770 is fixedly connected to the positioning surface 5615 of the rotating shaft 561 through the positioning hole 5772. A second anti-slip portion 5774 is provided on the side surface of the friction member 5770 facing the guide cylinder 5760, and the second anti-slip portion 5774 can increase the frictional resistance of the friction member 5770. In this embodiment, the second anti-slip portions 5774 are respectively provided on the opposite sides of the friction member 5770. In other embodiments, the second anti-slip portion 5774 on the side surface of the friction member 5770 facing the guide cylinder 5760 can be omitted, and only the first anti-slip portion 5768 on the guide cylinder 5760 is retained. In other embodiments, the first anti-slip portion 5768 on the guide cylinder 5760 can be omitted, and only the second anti-slip portion 5774 on the side surface of the friction member 5770 facing the guide cylinder 5760 is retained. In this embodiment, the friction assembly 577 includes three pairs of friction members 5770, and the three pairs of friction members 5770 are respectively sleeved on a pair of rotating shafts 561. The second anti-slip portions 5774 are respectively provided on the opposite side surfaces of each friction member 5770. In other embodiments, the friction assembly 577 includes two pairs of friction members 5770 or more than four pairs of friction members 5770, and the two pairs of friction members 5770 or more than four pairs of friction members 5770 are respectively sleeved on a pair of rotating shafts 561. The second anti-slip portion 5774 can be, but is not limited to, a rough surface, a damping layer, a plurality of small protrusions or a plurality of small concave convex portions, holes or rough surfaces, etc. The buckle 5775 can be, but is not limited to, a C-shaped buckle or a U-shaped buckle, etc.

[0071] Please refer to Figures 14 - 18When assembling the linkage mechanism 56 and the limiting mechanism 57, insert the end portions of the two rotating shafts 561 away from the connecting caps 5612 into the two first guide holes 5652 of the fixing member 565 respectively until the fixing member 565 abuts against the connecting caps 5612; engage the gear rings 5646 of the two synchronous gears 5643 with each other and place them between the two link members 562, and make the two driving gears 5641 mesh with the two synchronous gears 5643 respectively; insert the end portion of one rotating shaft 561 away from the connecting cap 5612 into the first sleeve 5622 and the first adjusting cylinder 572, and insert the end portion of the other rotating shaft 561 away from the connecting cap 5612 into the second sleeve 5632 and the second adjusting cylinder 574. The end portions of the two rotating shafts 5644 of the gear combination 564 close to the fixing member 565 are inserted into the two first connection holes 5654 of the fixing member 565 respectively, and the positioning portions 5656 are received in the notches of the corresponding sleeves 5622; each positioning portion 5656 is located between the corresponding first limiting surface 5626 and the second limiting surface 5627. Sleeve the first sliding cylinder 5731 and the second sliding cylinder 5733 of the abutting member 573 onto the two rotating shafts 561 respectively, so that the first sliding cylinder 5731 is inserted into the inner cavity of the first adjusting cylinder 572, and the first adjusting portion 5722 is inserted into the first spiral groove 5734. The second sliding cylinder 5733 is inserted into the inner cavity of the second adjusting cylinder 574, and the second adjusting portion 5742 is inserted into the second spiral groove 5735, and the two rotating shafts 5644 respectively pass through the two second connection holes 5736 of the abutting member; sleeve the two elastic members 575 onto the two rotating shafts 561 respectively, and sleeve the two guide sliding cylinders 5760 of the positioning member 576 onto the two rotating shafts 561 respectively, so that the two elastic members 575 are clamped between the abutting member 573 and the positioning member 576; sleeve three pairs of friction members 5770 onto the two rotating shafts 561 respectively, and the clamping grooves 5616 of each rotating shaft 561 expose the sides of the corresponding friction members 5770 facing away from the positioning member 576; then snap the two fasteners 5775 onto the clamping grooves 5616 of the two rotating shafts 561 respectively. At this time, the first adjusting portion 5722 and the second adjusting portion 5742 are respectively received in the first spiral groove 5734 and the second spiral groove 5735, the elastic members 575 are in a compressed state for pushing the abutting member 573 and the positioning member 576, the two fasteners 5775 respectively abut against the sides of the two friction members 5770 facing away from the positioning member 576, the friction members 5770 are clamped between the positioning member 576 and the gasket 578, and the friction members 5770 are positioned on the positioning surface 5615 of the rotating shaft 561.

[0072] When the first link member 562 and the second link member 563 of the linkage mechanism 56 are in a flattened state, the first adjusting portion 5722 is positioned at the first positioning end 5734a of the first spiral groove 5734, and the second adjusting portion 5742 is positioned at the third positioning end 5735a of the second spiral groove 5735; when the first link member 562 and the second link member 563 of the linkage mechanism 56 are in a folded state, the first adjusting portion 5722 is positioned at the second positioning end 5734b of the first spiral groove 5734, and the second adjusting portion 5742 is positioned at the fourth positioning end 5735b of the second spiral groove 5735. When the linkage mechanism 56 is bent from the flattened state, the first link member 562 is bent relative to the abutting member 573 towards the second link member 563, and the first link member 562 rotates about the axis of the corresponding rotating shaft 561 to drive the corresponding rotating shaft 561, the driving gear 5641 and the first adjusting cylinder 572 to rotate about the axis of the rotating shaft 561. The rotating driving gear 5641 drives another driving gear 5641 to rotate through the synchronizing gear 5643, and the rotation of the other driving gear 5641 drives the corresponding rotating shaft 561, the second sleeve 5632 and the second link member 563 to rotate, so that the first link member 562 and the second link member 563 of the linkage mechanism 56 approach each other synchronously; or the second link member 563 is bent relative to the abutting member 573 towards the first link member 562, and the second link member 563 rotates about the axis of the corresponding rotating shaft 561 to drive the corresponding rotating shaft 561, the driving gear 5641 and the second adjusting cylinder 574 to rotate about the axis of the rotating shaft 561. The rotating driving gear 5641 drives another driving gear 5641 to rotate through the synchronizing gear 5643, and the rotation of the other driving gear 5641 drives the corresponding rotating shaft 561, the first sleeve 5622 and the first link member 562 to rotate, so that the second link member 563 and the first link member 562 of the linkage mechanism 56 approach each other synchronously. During the bending process of the linkage mechanism 56, the first adjusting portion 5722 moves from the first positioning end 5734a to the second positioning end 5734b of the first spiral groove 5734, and the second adjusting portion 5742 moves from the third positioning end 5735a to the fourth positioning end 5735b of the second spiral groove 5735,

[0073] When the linkage mechanism 56 is deployed from the folded state, the first link member 562 is deployed away from the second link member 563 relative to the abutting member 573. The first link member 562 rotates along the axis of the corresponding rotating shaft 561 to drive the corresponding rotating shaft 561, the driving gear 5641 and the first adjusting cylinder 572 to rotate along the axis of the rotating shaft 561. The rotating driving gear 5641 drives another driving gear 5641 to rotate through the synchronizing gear 5643, and then drives the corresponding rotating shaft 561, the second sleeve 5632 and the second adjusting cylinder 574 to rotate, so that the first link member 562 and the second link member 563 of the linkage mechanism 56 move away from each other synchronously. Or the second link member 563 is deployed away from the first link member 562 relative to the abutting member 573. The second link member 563 rotates along the axis of the corresponding rotating shaft 561 to drive the corresponding rotating shaft 561, the driving gear 5641 and the second adjusting cylinder 574 to rotate along the axis of the rotating shaft 561. The rotating driving gear 5641 drives another driving gear 5641 to rotate through the synchronizing gear 5643, and then drives the corresponding rotating shaft 561, the first sleeve 5622 and the first adjusting cylinder 572 to rotate, so that the second link member 563 and the first link member 562 of the linkage mechanism 56 move away from each other synchronously. During the deployment process of the linkage mechanism 56, the first adjusting portion 5722 moves from the second positioning end 5734b to the first positioning end 5734a of the first spiral groove 5734, and the second adjusting portion 5742 moves from the fourth positioning end 5735b to the third positioning end 5735a of the second spiral groove 5735.

[0074] During the folding or deployment process of the linkage mechanism 56, the first adjusting cylinder 572 on the first link member 562 rotates relative to the first sliding cylinder 5731, and the second adjusting cylinder 574 on the second link member 563 rotates relative to the second sliding cylinder 5733, so that the first sliding cylinder 5731 and the second sliding cylinder 5733 slide synchronously along the axial direction of the rotating shaft 561, that is, the abutting member 573 slides along the axial direction of the rotating shaft 561 to squeeze the elastic member 575. The elastic member 575 elastically pushes the positioning member 576, so that the friction member 5770 is clamped between the buckle 5775 and the positioning member 576, and the friction member 5770 rotates relative to the positioning member 576 along with the corresponding rotating shaft 561. The frictional resistance of the friction member 5770 can limit the first link member 562 and the second link member 563 at a specific angle between 180 degrees and 0 degrees. When the included angle between the first link member 562 and the second link member 563 is 180 degrees, the linkage mechanism 56 is in a flattened state, and when the included angle between the first link member 562 and the second link member 563 is 0 degrees, the linkage mechanism 56 is in a folded state.

[0075] Such as Figures 4 - 13 And Figures 19 - 22As shown in the figure, when assembling the folding device 50, two first connecting cylinders 5533 of one rotating member 550 are received in two receiving grooves 5552 of one connecting member 555, and two first connecting cylinders 5533 of the other rotating member 550 are received in two receiving grooves 5552 of the other connecting member 555; two rotating shafts 551 are respectively passed through the inner cavities of the corresponding first connecting cylinders 5533 and the inner cavities of the corresponding second connecting cylinders 5553, so that the two rotating members 550 are respectively rotatably connected to the two connecting members 555; the first rotating portion 552 of one rotating member 550 is received in the receiving groove 530 on one side of the base 53, and the first rotating portion 552 of the other rotating member 550 is received in the receiving groove 530 on the opposite side of the base 53, so that the two arc tracks 5522 of each first rotating portion 552 are respectively rotatably received in the two arc grooves 532 of the base 53, and the positioning post 5312 is snap-fitted into the positioning hole 5342. The combination of the linkage mechanism 56 and the limiting mechanism 57 is placed between the two connecting members 555. The two first guide rails 5620 of the first link member 562 are respectively slidably inserted into the two guide grooves 5550 of one connecting member 555, and the two second guide rails 5630 of the second link member 563 are respectively slidably inserted into the guide grooves 5550 of the other connecting member 555, so that the two connecting caps 5612, the two rotating shafts 5644 and the positioning rod 5657 are respectively inserted into the two first shaft holes 535, the two connecting holes 536 and the fixing hole 537. The bases 53 of the two folding assisting assemblies 51 are respectively positioned on the two locking portions 592 of the back shell 59, and the supporting mechanism 52 is placed in front of the two folding assisting assemblies 51, so that the middle supporting member 521 covers the fronts of the two bases 53. The locking member passes through the connecting hole 5212 on the middle supporting member 521 and the mounting hole 533 on the base 53 and is locked in the locking hole 5942 of the corresponding connecting column 594; the two rotating tracks 5556 of each connecting member 555 are respectively rotatably received in a corresponding pair of rotating grooves 5234, and the guide sliding shafts 5628 of each link member 562 are passed through the corresponding guide grooves 5237. The rotating member 550 can rotate relative to the base 53 about the first axis, the first link member 562 and the second link member 563 can respectively rotate relative to the base 53 about the second axis of the corresponding rotating shaft 561, and the first axis is spaced parallel to the second axis. The folding device 50 can be folded or unfolded. Specifically, one connecting member 555 drives the corresponding rotating member 550 and the first link member 562 to respectively rotate relative to the base 53. The rotation of the first link member 562 drives the second link member 563 to rotate synchronously relative to the base 53 through the gear combination 564, and the two rotating shafts 561 respectively rotate synchronously relative to the base 53 to realize the synchronous folding or synchronous flattening of the two rotating mechanisms 55.

[0076] When the folding device 50 is in a flattened state, the first adjusting portion 5722 is positioned at the first positioning end 5734a, the second adjusting portion 5742 is positioned at the third positioning end 5735a, the first guide shaft 5628 and the second guide shaft 5638 are respectively positioned at the second positioning segments 5237b of the two side support members 523, and the positioning portion 5656 abuts against the second limiting surface so that the folding device 50 maintains the flattened state, preventing the side support members 523 from being bent back relative to the middle support member 521. The front surfaces of the two side support members 523 and the front surface of the middle support member 521 are coplanar. When the two side support members 523 are in a folded state, the first adjusting portion 5722 is positioned at the second positioning end 5734b, the second adjusting portion 5742 is positioned at the fourth positioning end 5735b, the first guide shaft 5628 and the second guide shaft 5638 are respectively positioned at the first positioning segments 5237a of the two side support members 523, and the positioning portion 5656 abuts against the first limiting surface so that the folding device 50 maintains the folded state. The side support members 523 are inclined relative to the middle support member 521, and the front surface of the middle support member 521 and the front surfaces of the two side support members 523 enclose a water droplet shape. When the folding device 50 changes from the flattened state to the folded state, the first adjusting portion 5722 slides and rotates from the first positioning end 5734a of the first spiral groove 5734 to the second positioning end 5734b. At the same time, the third positioning end 5735a of the second spiral groove 5735 of the second adjusting portion 5742 slides and rotates to the fourth positioning end 5735b, and the first guide shaft 5628 and the second guide shaft 5638 respectively slide and rotate from the second positioning segments 5237b in the corresponding guide grooves 5237 to the first positioning segments 5237a. When the folding device 50 changes from the folded state to the flattened state, the first adjusting portion 5722 slides and rotates from the second positioning end 5734b of the first spiral groove 5734 to the first positioning end 5734a. At the same time, the fourth positioning end 5735b of the second spiral groove 5735 of the second adjusting portion 5742 slides and rotates to the third positioning end 5735a, and the first guide shaft 5628 and the second guide shaft 5638 respectively slide and rotate from the first positioning segments 5237a in the corresponding guide grooves 5237 to the second positioning segments 5237b.

[0077] As Figures 1 - 4 shown, place the installed folding device 50 between the two frames 21, and respectively accommodate the connecting members 555 on the opposite sides of the folding device 50 in the installation grooves 216 of the two frames 21 and fixedly connect them to the two frames 21. The first front surfaces 211 of the two frames 21, the front surface of the middle support member 521 and the front surfaces of the two side support members 523 are coplanar. Connect the backs of the two non-bending regions 33 of the flexible screen 30 to the front surfaces of the two frames 21 respectively, and the bendable region 31 faces the folding device 50.

[0078] Please refer to Figure 1 and Figures 23 to 30When bending the electronic device 100, a bending force is applied to at least one of the two frames 21 of the electronic device 100, causing the rotating mechanism 55 connected to the two frames 21 to rotate in a direction closer to each other. The folding device 50 is bent by the two folding assistance components 51, and the bendable area 31 is bent along with the support mechanism 52. Specifically, when a bending force is applied to one frame 21, the one frame 21 drives the corresponding rotating mechanism 55 to rotate relative to the base 53 towards the side closer to the flexible screen 30; so as to drive the first link member 562 to rotate relative to the base 53 towards the side closer to the flexible screen 30 along the axis of the corresponding rotating shaft 561. At the same time, the first guide rail 5620 of the first link member 562 slides in the guide groove 5550 of the corresponding connecting member 555, and the first sleeve 5622, the rotating shaft 561, the driving gear 5641 and the first adjusting cylinder 572 of the first link member 562 rotate along the axis of the corresponding rotating shaft 561. The rotating driving gear 5641 drives another driving gear 5641 to rotate through the gear combination of the synchronous gear 5643, and then drives the corresponding rotating shaft 561, the second sleeve 5632, the second adjusting cylinder 574 and the second link 5633 to rotate, so that the first link member 562 and the second link member 563 of the linkage mechanism 56 approach each other synchronously; at the same time, the first adjusting part 5722 moves in the first spiral groove 5734 and the second adjusting part 5742 moves in the second spiral groove 5735, so that the first sliding cylinder 5731 slides relative to the first adjusting cylinder 572 and the second sliding cylinder 5733 slides relative to the second adjusting cylinder 574. The abutting member 573 slides axially along the rotating shaft 561 to squeeze the elastic member 575. The elastic member 575 elastically pushes the positioning member 576 so that the friction member 5770 is clamped between the buckle 5775 and the positioning member 576, and the friction member 5770 rotates relative to the positioning member 576 along with the corresponding rotating shaft 561. The first rotating part 552 of the rotating member 550 rotates relative to the base 53 through the cooperation of the arc track and the corresponding arc groove. The second rotating part 553 of the rotating member 550 is rotatably connected to the corresponding connecting member 555 along the corresponding rotating shaft 551. The first link member 562 and the second link member 563 rotate along the axis of the corresponding rotating shaft 561 and approach each other, so as to realize the mutual approach of the two side support members 523, making the folding device 50 in a bent state. The bendable area 31 of the flexible screen 30 is bent along with the folding device 50 until the fronts of the two non-bendable areas 33 of the flexible screen 30 are mutually attached, and the bendable area 31 is bent into a water droplet shape, thus realizing the seamless folding of the electronic device 100.

[0079] During the bending process of the electronic device 100, the sum of the frictional torque between the first adjusting portion 5722 and the inner surface of the first spiral groove 5734, the frictional torque between the second adjusting portion 5742 and the inner surface of the second spiral groove 5735, and the frictional resistance of the first friction member 5770 can limit the rebound of the flexible screen 30, so that the side support member 523 is positioned at a specific angle relative to the middle support member 521, and the two frames 21 can be limited at a specific angle between 180 degrees and 0 degrees. When the two frames 21 are flattened and limited at 180 degrees, the bendable area 31 of the flexible screen 30 is flattened; when the two frames 21 are folded and limited at 0 degrees, the two non-bendable areas 33 of the flexible screen 30 are parallel to each other, the bendable area 31 is in a water droplet shape, reducing the duty ratio of the bendable area 31 after bending, so as to reduce the overall thickness of the electronic device 100.

[0080] In other bending methods of the electronic device 100, a bending force can also be applied to the two frames 21 at the same time. The two frames 21 respectively drive the two side support members 523 to rotate toward the side close to the flexible screen 30, and the folding device 50 is used to realize the bending of the electronic device 100.

[0081] When the electronic device 100 needs to be flattened, a frame 21 is pulled outwards, so that two rotating mechanisms 55 connected to the two frames 21 rotate in a direction away from each other, and the folding device 50 is flattened through two folding assistance components 51, and the foldable area 31 is flattened along with the support mechanism 52. Specifically, an outward pulling force is applied to a frame 21 of the electronic device 100, and this frame 21 drives the corresponding rotating mechanism 55 to rotate relative to the base 53 to the side away from the flexible screen 30, so that the first guide rail 5620 of the first link 562 slides in the guide chute 5550 of the corresponding connecting member 555, and the first sleeve 5622, the rotating shaft 561, the driving gear 5641 and the first adjusting cylinder 572 of the first link 562 rotate along the axis of the corresponding rotating shaft 561. The driving gear 5641 in rotation drives another driving gear 5641 to rotate through the synchronous gear 5643, and the rotation of the other driving gear 5641 drives the corresponding rotating shaft 561, the second sleeve 5632, the second adjusting cylinder 574 and the second link 5633 to rotate along the axis of the corresponding rotating shaft 561, so that the first link 562 and the second link 563 of the linkage mechanism 56 move away from each other synchronously; at the same time, the first adjusting part 5722 moves in the first spiral groove 5734 and the second adjusting part 5742 moves in the second spiral groove 5735, so that the first sliding cylinder 5731 slides relative to the first adjusting cylinder 572 and the second sliding cylinder 5733 slides relative to the second adjusting cylinder 574. The elastic member 575 elastically pushes against the positioning member 576 so that the friction member 5770 is clamped between the buckle 5775 and the positioning member 576, and the friction member 5770 rotates relative to the positioning member 576 along with the corresponding rotating shaft 561. During the flattening process of the linkage mechanism 56, the first rotating part 552 of the rotating member 550 rotates relative to the base 53, and the second rotating part 553 of the rotating member 550 is rotatably connected to the corresponding connecting member 555, so that the first link 562 and the second link 563 rotate along the axis of the corresponding rotating shaft 561 respectively and move away from each other, so as to realize the mutual separation of the two side support members 523, make the folding device 50 unfold, and the foldable area 31 of the flexible screen 30 unfolds along with the folding device 50 until the flexible screen 30 is flattened.

[0082] During the flattening process of the electronic device 100, the sum of the frictional torque between the first adjusting part 5722 and the inner surface of the first spiral groove 5734, the frictional torque between the second adjusting part 5742 and the inner surface of the second spiral groove 5735, and the frictional resistance of the first friction member 5770 can limit the rebound of the flexible screen 30, so that the side support member 523 is positioned at a specific angle relative to the middle support member 521, and the two frames 21 can be limited at a specific angle between 0 degrees and 180 degrees.

[0083] In other bending methods of the electronic device 100, a force that pulls the two frames 21 outward can also be applied simultaneously. The two frames 21 respectively drive the base 53 to rotate away from each other relative to the rotating mechanisms 55 on both sides, so as to drive the two link members 562 on both sides of the base 53 to rotate away from each other, causing the two side support members 523 to rotate away from the flexible screen 30, and realizing the unfolding of the electronic device 100 through the folding device 50.

[0084] The folding device 50 of the electronic device 100 of the present invention replaces the cam structure of the folding device in the prior art through the cooperation of the first adjusting portion 5722 and the first spiral groove 5734 and the cooperation of the second adjusting portion 5742 and the second spiral groove 5735. By moving the first adjusting portion 5722 in the first spiral groove 5734 and the second adjusting portion 5742 in the second spiral groove 5735, the sliding of the abutting member 573 relative to the first adjusting cylinder 572 and the second adjusting cylinder 574 is realized, so that the abutting member 573 abuts against the elastic member 575, avoiding the problem of wear on the contact surface between the cams, enabling the electronic device 100 to have a better folding feel and hovering effect, and being beneficial to the miniaturization development of the folding device 50; secondly, the frictional resistance of the folding device 50 can stably limit the bending of the electronic device 100 at a specific angle between 0 degrees and 180 degrees, realizing the hovering function of the whole machine.

[0085] The above are the implementation manners of the embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principles of the embodiments of the present invention, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

Claims

1. A folding device, characterized in that, The folding device includes: a base, a rotating shaft rotatably connected to the base; a first link member connected to the rotating shaft; a first adjusting cylinder connected to the first link member and sleeved on the rotating shaft; and a resisting member including a first sliding cylinder slidably sleeved on the rotating shaft, the first adjusting cylinder and the first sliding cylinder being sleeved with each other, and the first adjusting cylinder and the first sliding cylinder being connected by the cooperation of a first spiral groove and a first adjusting portion. The first adjusting cylinder rotates around the axis of the rotating shaft with the first link member, so that the first adjusting portion moves along the first spiral groove, causing the resisting member to slide along the axis of the rotating shaft.

2. The folding device according to claim 1, wherein, The first spiral groove includes a first positioning end and a second positioning end at its opposite ends, and the first positioning end is farther from the base than the second positioning end; when the first adjusting portion is positioned at the first positioning end, the first link member is flattened relative to the base; when the first adjusting portion is positioned at the second positioning end, the first link member is bent relative to the base; When the first adjusting portion moves from the first positioning end to the second positioning end, the resisting member slides in a direction away from the first link member, and the first link member changes from a flattened state to a bent state relative to the base.

3. The folding device according to claim 1, wherein, The first adjusting cylinder is sleeved on the first sliding cylinder, the first spiral groove is provided on one of the first sliding cylinder and the first adjusting cylinder, and the first adjusting portion is provided on the other of the first sliding cylinder and the first adjusting cylinder.

4. The folding device according to claim 3, characterized in that The first spiral groove is provided on the outer peripheral surface of the first sliding cylinder, the first adjusting portion is a first adjusting shaft provided on the inner peripheral surface of the first adjusting cylinder, the first adjusting portion is located at an end away from the base, the axis of the first adjusting shaft is perpendicular to the axis of the first adjusting cylinder, and the first adjusting shaft is slidably inserted into the first spiral groove.

5. The folding device according to claim 2, characterized in that, It further includes a second link member and a second adjusting cylinder. The two rotating shafts are spaced apart and connected to the base. The first link member is connected to one of the rotating shafts, the second link member is connected to the other rotating shaft, the second adjusting cylinder is connected to the second link member, the resisting member further includes a second sliding cylinder, the first sliding cylinder is slidably sleeved on one of the rotating shafts, the second sliding cylinder is slidably sleeved on the other rotating shaft, the second adjusting cylinder and the second sliding cylinder are sleeved with each other, and the second adjusting cylinder and the second sliding cylinder are connected by the cooperation of a second spiral groove and a second adjusting portion. The second adjusting cylinder rotates around the axis of the corresponding rotating shaft with the second link member, so that the second adjusting portion moves along the second spiral groove.

6. The folding device according to claim 5, characterized in that, The second spiral groove includes a third positioning end and a fourth positioning end at its opposite ends, and the third positioning end is farther from the base than the fourth positioning end; when the second adjusting portion is positioned at the third positioning end, the second link member is flattened relative to the base; When the second adjusting part is positioned at the fourth positioning end, the second link member is bent relative to the base. When the second adjusting part moves from the third positioning end to the fourth positioning end, the abutting member slides in a direction away from the second link member, and the second link member changes from a flattened state to a bent state relative to the base.

7. The folding device according to claim 5, characterized in that, The abutting member further includes a connecting strip connected between the first sliding cylinder and the second sliding cylinder. The first sliding cylinder and the second sliding cylinder are located on the same side of the connecting strip. The axis of the first sliding cylinder is parallel to and spaced from the axis of the second sliding cylinder. The rotation direction of the first spiral groove is opposite to the rotation direction of the second spiral groove.

8. The folding device according to claim 1, characterized in that It further includes an elastic member, a positioning member and a friction assembly. The elastic member is clamped between the abutting member and the positioning member. The abutting member axially slides along the rotating shaft to abut against the elastic member. The friction assembly includes a friction member sleeved on the rotating shaft. The friction member rotates relative to the positioning member along with the rotating shaft, and there is a frictional resistance between the friction member and the positioning member.

9. A folding housing, characterized in that, The folding housing includes the folding device according to any one of claims 1-8 and two frames. The folding device is located between the two frames, and the two frames are respectively connected to opposite sides of the folding device.

10. An electronic device, characterized in that, The electronic device includes a flexible screen and the folding housing according to claim 9. The flexible screen is disposed on the folding housing.

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