Linkage mechanism, folding shell and electronic equipment

Abstract

The linkage mechanism comprises a first linkage piece, a second linkage piece, a first rotating piece and a second rotating piece, the first linkage piece is rotationally connected with the second linkage piece, the first linkage piece comprises a first rotating end and a first moving end which are located at the two opposite ends of the first linkage piece, and the second linkage piece comprises a second rotating end and a second moving end which are located at the two opposite ends of the second linkage piece. The second linkage piece comprises a second rotating end and a second moving end which are located at the two opposite ends of the second linkage piece, the first rotating end is rotationally connected with the second rotating piece, the first moving end is movably connected with the first rotating piece, and the second rotating end is rotationally connected with the first rotating piece. The second moving end is movably connected with the second rotating piece; when the first linkage piece rotates relative to the second linkage piece, the first rotating piece and the second rotating piece synchronously and reversely rotate. The invention further provides a folding shell provided with the linkage mechanism and electronic equipment.

Description

Technical Field

[0001] The present invention relates to the field of electronic equipment, and in particular to a linkage mechanism, a folding shell provided with the linkage mechanism, and electronic equipment provided with the folding shell. Background Art

[0002] The bendable flexible display screen of the existing folding screen device is generally supported by a rotating shaft device, and the rotating shaft device generally adopts a four-gear transmission to achieve the effect of synchronous and skewed rotation of the rotating shaft device. However, with the development trend of miniaturization and thinness of the rotating shaft device, the size of the gears needs to be smaller and smaller, which not only increases the difficulty of processing and manufacturing, but also complicates assembly and generates high costs. In addition, the gears are more susceptible to wear and affect the function of the rotating shaft device. Summary of the invention

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

[0004] The present application provides a linkage mechanism, which includes a first linkage member, a second linkage member, a first rotating member and a second rotating member, the first linkage member and the second linkage member are rotatably connected to each other, the first linkage member includes a first rotating end and a first movable end located at opposite ends thereof, the second linkage member includes a second rotating end and a second movable end located at opposite ends thereof, the first rotating end is rotatably connected to the second rotating member, the first movable end is movably connected to the first rotating member, the second rotating end is rotatably connected to the first rotating member, and the second movable end is movably connected to the second rotating member; when the first linkage member rotates relative to the second linkage member, the first rotating member and the second rotating member rotate synchronously in opposite directions.

[0005] The present application provides a folding shell, which includes a hinge device and two frames, the hinge device includes a linkage mechanism, the linkage mechanism includes a first linkage member, a second linkage member, a first rotating member and a second rotating member, the first linkage member and the second linkage member are rotatably connected to each other, the first linkage member includes a first rotating end and a first movable end located at opposite ends thereof, the second linkage member includes a second rotating end and a second movable end located at opposite ends thereof, the first rotating end is rotatably connected to the second rotating member, the first movable end is movably connected to the first rotating member, the second rotating end is rotatably connected to the first rotating member, and the second movable end is movably connected to the second rotating member; when the first linkage member rotates relative to the second linkage member, the first rotating member and the second rotating member rotate synchronously in opposite directions; the hinge device is located between the two frames, and the first rotating member and the second rotating member of the linkage mechanism are respectively connected to the two frames.

[0006] The present application also provides an electronic device, which includes a flexible screen and a folding shell, the folding shell includes a hinge device and two frames, the hinge device includes a linkage mechanism, the linkage mechanism includes a first linkage member, a second linkage member, a first rotating member and a second rotating member, the first linkage member and the second linkage member are rotatably connected to each other, the first linkage member includes a first rotating end and a first moving end located at its opposite ends, the second linkage member includes a second rotating end and a second moving end located at its opposite ends, the first rotating end is rotatably connected to the second rotating member, the first moving end is movably connected to the first rotating member, the second rotating end is rotatably connected to the first rotating member, and the second moving end is movably connected to the second rotating member; when the first linkage member rotates relative to the second linkage member, the first rotating member and the second rotating member rotate synchronously in opposite directions; the hinge device is located between the two frames, the first rotating member and the second rotating member of the linkage mechanism are respectively connected to the two frames, and the flexible screen is connected to the folding shell.

[0007] The linkage mechanism of the rotating shaft device of the present invention can make the two frames connected to the first rotating member and the second rotating member fold or unfold synchronously. Compared with the related art that realizes the synchronous folding or unfolding of the two frames of the folding shell by adopting gear transmission, the linkage mechanism of the present application has a simple structure, low manufacturing cost, and avoids the problem of gear wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the implementation. Obviously, the drawings described below relate to some implementations of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work.

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

[0010] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the electronic device;

[0011] Figure 3 yes Figure 2 A schematic diagram of a further three-dimensional structural decomposition of an electronic device;

[0012] Figure 4 yes Figure 3 A magnified three-dimensional structure diagram of the linkage mechanism;

[0013] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure decomposition of the linkage mechanism;

[0014] Figure 6 yes Figure 5 A schematic diagram of a three-dimensional structure of the first linkage member and the second linkage member from another perspective;

[0015] Figure 7 yes Figure 5 A schematic diagram of a three-dimensional structure decomposition of the first linkage member and the second linkage member;

[0016] Figure 8 yes Figure 4 A side view of the linkage mechanism in FIG.

[0017] Fig. 9 yes Figure 4 A cross-sectional view along line IX-IX;

[0018] Fig.10 yes Figure 3 A side view of the linkage mechanism in a folded state;

[0019] Fig.11 yes Fig.10 A partial cross-sectional view of the linkage mechanism in FIG.

[0020] Fig.12 yes Figure 3 A magnified three-dimensional structure diagram of the supporting mechanism;

[0021] Fig.13 yes Fig.12 A schematic diagram of the three-dimensional structure of the supporting mechanism from another perspective;

[0022] Fig.14 yes Figure 3 A magnified three-dimensional structure of the rotation-assisting assembly;

[0023] Fig.15 yes Fig.14 A schematic diagram of the three-dimensional structure of the rotation-assisting assembly from another perspective;

[0024] Fig.16 yes Fig.14 A schematic diagram of the three-dimensional structure of the rotation-assisting component;

[0025] Fig.17 yes Fig.15 A schematic diagram of the three-dimensional structure of the rotation-assisting component;

[0026] Fig.18 yes Fig.16 A schematic diagram of a further three-dimensional structural decomposition of the rotation-assisting component;

[0027] Fig.19 yes Fig.17 A schematic diagram of a further three-dimensional structural decomposition of the rotation-assisting component;

[0028] Fig. 20 yes Figure 2 A three-dimensional cross-sectional view of the folded shell in FIG.

[0029] Fig.21 yes Fig. 20 A partial cross-sectional view of the folded shell in FIG.

[0030] Fig. 22 yes Figure 2 A schematic diagram of a three-dimensional structure of a folding shell in one of the folding states;

[0031] Fig.23 yes Fig. 22 A three-dimensional cross-sectional view of the folding shell in FIG.

[0032] Fig.24 yes Fig.23 A partial cross-sectional view of the folded shell in FIG.

[0033] Fig.25 yes Figure 2 A schematic diagram of a three-dimensional structure of the foldable shell in a fully folded state;

[0034] Fig.26 yes Fig.25 A three-dimensional cross-sectional view of the folding shell in FIG.

[0035] Fig. 27 yes Fig.26 A partial cross-sectional view of the folded shell.

[0036] Main markings:

[0037] 100, electronic device; 20, folding housing; 30, frame; 301, front; 303, back; 305, end face; 306, mounting groove; 40, flexible screen; 41, bendable area; 43, non-bending area; 50, rotating shaft device; 51, linkage mechanism; 512, first linkage member; 5121, first rotating end; 5122, first rotating shaft; 5123, first moving end; 5124, first guide column; 5125, first hinged portion; 5125a, first axial hole; 5127, first connecting strip; 5128, second connecting strip; 514, second linkage member; 5141, second rotating end; 5142, second rotating shaft; 5143, second moving end; 5144, second guide column; 5145, second hinge Connecting part; 5145a, second axial hole; 5147, third connecting strip; 5148, fourth connecting strip; 515, first rotating member; 5151, first side surface; 5152, second rotating hole; 5153, first end surface; 5154, first guide groove; 5154a, first end; 5154b, second end; 5155, first back surface; 5156, first front surface; 516, second rotating member; 5161, second side surface; 5162, first rotating hole; 5163, second end surface; 5164, second guide groove; 5164a, third end; 5164b, fourth end; 5165, second back surface; 5166, second front surface; 517, rotating shaft; 52, folding aid mechanism; 53, base; 530, second arc groove; 531, first mounting part; 5311, rotation-assisting groove; 5312, convex block; 533, second mounting part; 5331, support bar; 5332, positioning piece; 5334, connecting hole; 5336, guide slide shaft; 535, third mounting part; 5351, connecting bar; 5353, support piece; 5355, guide slide block; 54, supporting mechanism; 541, middle support member; 545, side support member; 5450, adjusting groove; 5451, side support plate; 5452, adjusting block; 5453, first positioning section; 5454, second positioning section; 5455, arc plate; 5456, first arc groove; 547, back cover; 5472, fixing part; 55, rotating mechanism; 550, rotating member; 5501, second arc arc track; 5503, first rotating part; 5505, second rotating part; 555, connecting member; 5550, slide groove; 5554, adapter; 5556, guide slide part; 5556a, guide groove; 5557, connecting part; 560, connecting shaft; 561, connecting rod; 5610, slide rail; 5611, adjusting shaft; 5612, rotating hole; 5613, rotating part; 5614, sliding part; 5615, connecting plate; 5616, cam; 5616a, first protruding part; 5616b, first recessed part; 5617, receiving groove; 5617a, first abutting spiral surface; 5617b, second abutting spiral surface; 57, linkage member; 571, first spiral surface; 572, sliding cylinder; 573, second spiral surface;574, connecting plate; 58, positioning member; 582, positioning portion; 5821, third arc groove; 5824, connecting hole; 585, connecting portion; 586, guide groove; 59, abutting assembly; 591, abutting member; 5910, abutting cam; 5911, second protruding portion; 5913, second recessed portion; 592, abutting cylinder; 593, connecting portion; 594, elastic member. ; DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In addition, the following descriptions of the various embodiments are made with reference to the attached drawings to illustrate specific embodiments that the present application may be implemented in. Directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0040] It should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] Please also read Figures 1 to 4The electronic device 100 in one embodiment of the present invention includes a folding housing 20 and a flexible screen 40. The flexible screen 40 is connected to the folding housing 20, and the flexible screen 40 can be bent or flattened along with the folding housing 20. The folding housing 20 includes two frames 30 and a hinge device 50 connected between the two frames 30. The opposite sides of the hinge device 50 are respectively connected to the two frames 30. The two frames 30 are folded or flattened through the hinge device 50. The hinge device 50 includes a linkage mechanism 51, a folding-assisting mechanism 52 and a supporting mechanism 54. The linkage mechanism 51 and the folding-assisting mechanism 52 are arranged on the back of the supporting mechanism 54 and are located between the two frames 30. The linkage mechanism 51 includes a first linkage member 512, a second linkage member 514, a first rotating member 515 and a second rotating member 516. The first linkage member 512 and the second linkage member 514 are rotatably connected to each other. The first linkage member 512 includes a first rotating end 5121 and a first movable end 5123 located at opposite ends thereof. The second linkage member 514 includes a second rotating end 5141 and a second movable end 5143 located at opposite ends thereof. The first rotating end 5121 is rotatably connected to the second rotating member 516, the first movable end 5123 is movably connected to the first rotating member 515, the second rotating end 5141 is rotatably connected to the first rotating member 515, and the second movable end 5143 is movably connected to the second rotating member 516. When the first linkage member 512 rotates relative to the second linkage member 514, the first rotating member 515 and the second rotating member 516 rotate synchronously in opposite directions. Specifically, the first rotating member 515 of the linkage mechanism 51 is connected to one of the two frames 30 , the second rotating member 516 is connected to the other of the two frames 30 , and the opposite sides of the folding assisting mechanism 52 are respectively connected to the two frames 30 . The flexible screen 40 includes a bendable area 41 corresponding to the hinge device 50, and two non-bending areas 43 connected to the opposite sides of the bendable area 41. The flexible screen 40 is arranged on the front of the two frames 30 and the front of the hinge device 50. The two non-bending areas 43 of the flexible screen 40 can be fixedly connected to the front of the two frames 30 respectively, and the bendable area 41 is attached to the front of the hinge device 50; when one of the frames 30 is folded or unfolded relative to the other frame 30, the first linkage member 512 rotates relative to the second linkage member 514 to drive the first rotating member 515 and the second rotating member 516 to rotate synchronously in opposite directions and fold or unfold with each other, the folding auxiliary mechanism 52 and the supporting mechanism 54 bend or unfold with the linkage mechanism 51, and at the same time, the bendable area 41 of the flexible screen 40 bends or flattens with the supporting mechanism 54.

[0042] In this embodiment, the front side refers to the side facing the same direction as the light-emitting surface of the flexible screen 40, and the back side refers to the side facing away from the light-emitting surface of the flexible screen 40. 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 car display, or any other product or component with a display function. The flexible screen 40 can be, but not limited to, a flexible display screen, a flexible touch screen, a flexible touch display screen, or other flexible components with corresponding functions, or a flexible component fixedly bonded to a flexible support plate, such as a flexible display screen bonded to a flexible steel plate, a flexible touch screen, etc.

[0043] The linkage mechanism 51 of the rotating shaft device 50 of the present invention can make the two frames 30 connected to the first rotating member 515 and the second rotating member 516 fold or unfold synchronously, that is, to achieve the synchronous folding or unfolding of the two frames 30 of the folding shell 20; compared with the related art that realizes the synchronous folding or unfolding of the two frames of the folding shell by adopting gear transmission, the linkage mechanism 51 has a simple structure, a low manufacturing cost, and avoids the problem of gear wear.

[0044] like Figure 4-Figure 11As shown, the first moving end 5123 is slidably and rotatably connected to the first rotating member 515, and the second moving end 5143 is slidably and rotatably connected to the second rotating member 516; the first rotating axis L1 between the first linking member 512 and the second linking member 514, the second rotating axis L2 between the first rotating end 5121 and the second rotating member 516, and the third rotating axis L3 between the second rotating end 5141 and the first rotating member 515 are parallel to each other. Optionally, the first linking member 512 is connected to the second linking member 514 near the middle through a rotating shaft 517, and the axis of the rotating shaft 517 is colinear with the first rotating axis L1. The first rotating end 5121 and the second rotating member 516 are connected by the cooperation of the first rotating shaft and the first rotating hole. The axis of the first rotating shaft is colinear with the second rotating axis L2. The first rotating shaft is provided at one of the first rotating end 5121 and the second rotating member 516. The first rotating hole is provided at the other of the first rotating end 5121 and the second rotating member 516. In this embodiment, the first rotating end 5121 is provided with a first rotating shaft 5122 on a side facing the second rotating member 516. The second rotating member 516 is provided with a first rotating hole 5162 on a side close to the first rotating member 515. The first rotating shaft 5122 is rotatably inserted into the first rotating hole 5162. The second rotating end 5141 is connected to the first rotating member 515 through the cooperation of the second rotating shaft and the second rotating hole. The axis of the second rotating shaft is colinear with the third rotating axis L3. The second rotating shaft is arranged at one of the second rotating end 5141 and the first rotating member 515, and the second rotating hole is arranged at the other of the second rotating end 5141 and the first rotating member 515. In this embodiment, the second rotating end 5141 is provided with a second rotating shaft 5142 on the side facing the first rotating member 515, and the second rotating hole 5152 is opened on the side of the first rotating member 515 close to the second rotating member 516, and the second rotating shaft 5142 is rotatably inserted in the second rotating hole 5152.

[0045] In other embodiments, a first rotating hole is provided on the side of the first rotating end 5121 facing the second rotating member 516, and a first rotating shaft is protruded on the side of the second rotating member 516 close to the first rotating member 515, and the first rotating shaft is rotatably inserted in the first rotating hole; a second rotating hole is provided on the side of the second rotating end 5141 facing the first rotating member 515, and a second rotating shaft is protruded on the side of the first rotating member 515 close to the second rotating member 516, and the second rotating shaft is rotatably inserted in the second rotating hole.

[0046] Optionally, the first rotation axis L1 is located between the first rotating member 515 and the second rotating member 516. Specifically, there is a gap between the first rotating member 515 and the second rotating member 516, and the first rotation axis L1 is located in the gap; the linkage mechanism 51 includes a flattened state and a folded state. When the linkage mechanism 51 moves from the flattened state to the folded state, the distance between the second rotation axis L2 and the third rotation axis L3 gradually increases and then gradually decreases; the distance between the first moving end 5123 and the second moving end 5143 gradually decreases, and the first moving end 512 3 and the second rotating end 5141 and the spacing between the second movable end 5143 and the first rotating end 5121 are gradually reduced, so that the first rotating member 515 rotates in a first direction and the second rotating member 516 rotates in a second direction, and the first direction is opposite to the second direction; specifically, the first rotating member 515 rotates from a horizontal state to a vertical state in the first direction, that is, the first rotating member 515 rotates from 0 degrees to 90 degrees, and the second rotating member 516 rotates from a horizontal state to a vertical state in the second direction, that is, the second rotating member 516 rotates from 0 degrees to 90 degrees.

[0047] During the movement of the linkage mechanism 51 from the folded state to the flattened state, the distance between the second rotation axis L2 and the third rotation axis L3 gradually decreases, the distance between the first moving end 5123 and the second moving end 5143 gradually increases, and the distance between the first moving end 5123 and the second rotation end 5141 and the distance between the second moving end 5143 and the first rotation end 5121 both gradually increase, so that the first rotating member 515 rotates in the second direction and the second rotating member 516 rotates in the first direction, and the first direction is opposite to the second direction; specifically, the first rotating member 515 rotates from a vertical state to a horizontal state in the second direction, that is, the first rotating member 515 rotates from 90 degrees to 0 degrees, and the second rotating member 516 rotates from a vertical state to a horizontal state in the first direction, that is, the second rotating member 516 rotates from 90 degrees to 0 degrees.

[0048] Optionally, the first movable end 5123 and the first rotating member 515 are connected by a first guide groove and a first guide column, the first guide groove is provided at one of the first rotating member 515 and the first movable end 5123, and the first guide column is provided at the other of the first rotating member 515 and the first movable end 5123; the second movable end 5143 and the second rotating member 516 are connected by a second guide groove and a second guide column, the second guide groove is provided at one of the second rotating member 516 and the second movable end 5143, and the second guide column is provided at the other of the second rotating member 516 and the second movable end 5143. In this embodiment, the first rotating member 515 is provided with a first guide groove 5154 on the side facing the first linkage member 512, the first movable end 5123 is provided with a first guide column 5124 rollably inserted in the first guide groove 5154, the second rotating member 516 is provided with a second guide groove 5164 on the side facing the second linkage member 514, and the second movable end 5143 is provided with a second guide column 5144 rollably inserted in the second guide groove 5164. The axis of the first guide column 5124 is parallel to the axis of the second guide column 5144, the first axis O1 of the first guide column 5124 and the second axis O of the second guide column 5144 are both parallel to the first rotation axis L1; the second rotation axis L2 and the third rotation axis L3 are at equal distances from the middle plane passing through the first rotation axis L1, and the first guide groove 5154 and the second guide groove 5164 are symmetrical about the middle plane.

[0049] like Figure 4 and Figure 5As shown, the first rotating member 515 and the second rotating member 516 are both rectangular blocks. The first rotating member 515 includes two opposite first side surfaces 5151, two opposite first end surfaces 5153, a first back surface 5155 and a first front surface 5156. The second rotating hole 5152 and the first guide groove 5154 are provided on one of the first side surfaces 5151; and the second rotating hole 5152 and the first guide groove 5154 are close to the intersection of the first front surface 5156 and one of the first end surfaces 5153. The second rotating member 516 includes two opposite second side surfaces 5161, two opposite second end surfaces 5163, a second back surface 5165 and a second front surface 5166. The first rotating hole 5162 and the second guide groove 5164 are provided on one of the second side surfaces 5161, and the first rotating hole 5162 and the second guide groove 5164 are close to the intersection of the second front surface 5166 and one of the second end surfaces 5163. The first guide groove 5154 and the second guide groove 5164 are both inclined grooves. The first guide groove 5154 includes a first end 5154a and a second end 5154b located at opposite ends thereof, the first end 5154a is closer to the first front face 5156 than the second end 5154b, and the first end 5154a is farther away from the second rotating hole 5152 than the second end 5154b; the second guide groove 5164 includes a third end 5164a and a fourth end 5164b located at opposite ends thereof, the third end 5164a is closer to the second front face 5166 than the fourth end 5164b, and the third end 5164a is farther away from the first rotating hole 5162 than the fourth end 5164b. When the linkage mechanism 51 is in a flattened state, the first movable end 5123 is positioned at the first end 5154a, and the second movable end 5143 is positioned at the third end 5164a; when the linkage mechanism 51 is in a folded state, the first movable end 5123 is positioned at the second end 5154b, and the second movable end 5143 is positioned at the fourth end 5164b.

[0050] Optionally, the first linkage 512 further includes a first hinged portion 5125, a first connecting strip 5127 and a second connecting strip 5128, wherein the first connecting strip 5127 is connected between the first rotating end 5121 and the first hinged portion 5125, and the second connecting strip 5128 is connected between the first moving end 5123 and the first hinged portion 5125, and the spacing between the first rotating end 5121 and the first hinged portion 5125 is smaller than the spacing between the first moving end 5123 and the first hinged portion 5125; the second linkage 514 further includes a first connecting strip 5127 and a second connecting strip 5128, wherein the first connecting strip 5127 is connected between the first rotating end 5121 and the first hinged portion 5125, and the second connecting strip 5128 is connected between the first moving end 5123 and the first hinged portion 5125. The second hinge part 5145, the third connecting bar 5147 and the fourth connecting bar 5148, the third connecting bar 5147 is connected between the second rotating end 5141 and the second hinge part 5145, the fourth connecting bar 5148 is connected between the second moving end 5143 and the second hinge part 5145, the spacing between the second rotating end 5141 and the second hinge part 5145 is smaller than the spacing between the second moving end 5143 and the second hinge part 5145; the first hinge part 5125 and the second hinge part 5145 are connected through the rotating shaft 517. Specifically, the first hinge part 5125 is provided with a first shaft hole 5125a along the axial direction of the rotating shaft 517, the second hinge part 5145 is provided with a second shaft hole 5145a along the axial direction of the rotating shaft 517, and the rotating shaft 517 is penetrated through the first shaft hole 5125a and the second shaft hole 5145a.

[0051] Optionally, the first rotating end 5121 and the first moving end 5123 are located on the same side of the first hinged portion 5125, and the second rotating end 5141 and the second moving end 5143 are located on the same side of the second hinged portion 5145. In this embodiment, the first connecting bar 5127 and the second connecting bar 5128 are both L-shaped, one end of the first connecting bar 5127 is connected to the first rotating end 5121, and the other end of the first connecting bar 5127 is connected to the first hinged portion 5125, one end of the second connecting bar 5128 is connected to the first moving end 5123, and the other end of the second connecting bar 5128 is connected to the first hinged portion 5125. The first connecting bar 5127 and the second connecting bar 5128 form a U-shaped structure, the axis of the first rotating shaft 5122 is spaced parallel to the axis of the first axial hole 5125a, the first axis O1 of the first guide column 5124 is spaced parallel to the axis of the first axial hole 5125a, and the distance from the axis of the first axial hole 5125a to the axis of the first rotating shaft 5122 is smaller than the distance from the axis of the first axial hole 5125a to the first axis O1 of the first guide column 5124. The third connecting bar 5147 and the fourth connecting bar 5148 are both L-shaped, one end of the third connecting bar 5147 is connected to the second rotating end 5141, and the other end of the third connecting bar 5147 is connected to the second hinge part 5145, one end of the fourth connecting bar 5148 is connected to the second movable end 5143, and the other end of the fourth connecting bar 5148 is connected to the second hinge part 5145; the third connecting bar 5147 and the fourth connecting bar 5148 form a U-shaped structure, the axis of the second rotating shaft 5142 is parallel to the axis of the second shaft hole 5145a, the second axis O2 of the second guide column 5144 is parallel to the axis of the second shaft hole 5145a, and the distance from the axis of the second shaft hole 5145a to the axis of the second rotating shaft 5142 is smaller than the distance from the axis of the second shaft hole 5145a to the second axis O2 of the second guide column 5144.

[0052] Optionally, the bends of the first connecting strip 5127, the second connecting strip 5128, the third connecting strip 5147 and the fourth connecting strip 5148 are all arc-shaped transitions. The first rotating end 5121, the first moving end 5123, the second rotating end 5141 and the second moving end 5143 are all circular plates, the first rotating end 5121 is coaxial with the first rotating shaft 5122, the first moving end 5123 is coaxial with the first guide column 5124, the second rotating end 5141 is coaxial with the second rotating shaft 5142, and the second moving end 5143 is coaxial with the second guide column 5144.

[0053] Please also read Figure 4-Figure 11As shown, when assembling the linkage mechanism 51, the first hinged portion 5125 of the first linkage member 512 is fitted to the second hinged portion 5145 of the second linkage member 514, so that the first axial hole 5125a is opposite to the second axial hole 5145a, and the rotating shaft 517 is inserted into the first axial hole 5125a and the second axial hole 5145a; the first rotating member 515 and the second rotating member 516 are placed side by side, so that the first side surface 5151 provided with the second rotating hole 5152 and the second side surface 5161 provided with the first rotating hole 5162 are coplanar, and the first end surface 5153 of the first rotating member 515 is parallel and spaced opposite to the second end surface 5163 of the second rotating member 516; the first rotating shaft 5122, the first guide column 5124, the second rotating shaft 5142 and the second guide column 5144 are respectively inserted into the first rotating hole 5162, the first guide groove 5154, the second rotating hole 5152 and the second guide groove 5164. At this time, the first rotating end 5121 of the first linkage 512 can rotate along the axis of the first rotating shaft 5122, the first guide column 5124 of the first linkage 512 can slide and rotate in the first guide groove 5154, the second rotating end 5141 of the second linkage 514 can rotate along the axis of the second rotating shaft 5142, the second guide column 5144 of the second linkage 514 can slide and rotate in the second guide groove 5164, and the first rotating member 515 and the second rotating member 516 can achieve synchronous reverse rotation; the first end 5154a is compared with the second end 5154b Further away from the first rotation axis L1, the third end 5164a is further away from the first rotation axis L1 relative to the fourth end 5164b; the first rotation end 5121 and the second rotation end 5141 are located between the first movable end 5123 and the second movable end 5143, the distance between the second rotation axis L2 and the first rotation axis L1 is equal to the distance between the third rotation axis L3 and the first rotation axis L1, and the distance between the axis center of the first movable end 5123 and the first rotation axis L1 is equal to the distance between the axis center of the second movable end 5143 and the first rotation axis L1. When the linkage mechanism 51 is in a flattened state, one of the first end faces 5153 and one of the second end faces 5163 are arranged opposite to each other, the first rotation axis is located between the first back side 5155 and the second back side 5165, the first guide groove 5154 is inclined and linear along the direction toward the first end face 5153 and the first back side 5155, the second rotation hole 5152 is located above the first guide groove 5154, the second guide groove 5164 is inclined and linear along the direction toward the second end face 5163 and the second back side 5165, and the first rotation hole 5162 is located above the second guide groove 5164.

[0054] When the linkage mechanism 51 is bent from a flattened state to a fully folded state, a bending force is applied to the first rotating member 515 or the second rotating member 516. For example, a bending force is applied to the first rotating member 515, so that the first linkage member 512 and the second linkage member 514 rotate synchronously in opposite directions around the axis of the rotating shaft 517 respectively. At the same time, the first rotating shaft 5122 rotates in the first rotating hole 5162, the first guide column 5124 rolls from the first end 5154a to the second end 5154b of the first guide groove 5154, the second rotating shaft 5142 rotates in the second rotating hole 5152, and the second guide column 5144 rolls from the third end 5164a to the fourth end 5164b in the second guide groove 5164; so that the first rotating member 515 rotates relative to the second rotating member 516 to the first front side 5156 parallel to the second front side 5166. During the folding process of the linkage mechanism 51, the distance between the second rotation axis L2 and the third rotation axis L3 gradually increases, the distance between the first axis O1 and the second axis O2 gradually decreases, the distance between the second rotation axis L2 and the second axis O2 gradually decreases, and the distance between the third rotation axis L3 and the first axis O1 gradually decreases.

[0055] When the linkage mechanism 51 is unfolded from a fully folded state to a flattened state, an unfolding force is applied to the first rotating member 515 or the second rotating member 516, such as applying an unfolding force to the second rotating member 516, so that the first linkage member 512 and the second linkage member 514 respectively rotate synchronously in opposite directions around the axis of the rotating shaft 517. At the same time, the first rotating shaft 5122 rotates in the first rotating hole 5162, the first guide column 5124 rolls from the second end 5154b of the first guide groove 5154 to the first end 5154a, the second rotating shaft 5142 rotates in the second rotating hole 5152, and the second guide column 5144 rolls from the fourth end 5164b in the second guide groove 5164 to the third end 5164a; so that the first rotating member 515 rotates relative to the second rotating member 516 until the first front side 5156 and the second front side 5166 are coplanar. During the deployment of the linkage mechanism 51, the distance between the second rotation axis L2 and the third rotation axis L3 gradually decreases, the distance between the first axis O1 and the second axis O2 gradually increases, the distance between the second rotation axis L2 and the second axis O2 gradually increases, and the distance between the third rotation axis L3 and the first axis O1 gradually increases.

[0056] In other embodiments, the linkage mechanism includes more than two first linkage members 512, more than two second linkage members 514, a first rotating member 515, and a second rotating member 516. The more than two first linkage members 512 are respectively rotatably connected to the more than two second linkage members 514, each first rotating end 5121 is rotatably connected to the second rotating member 516, each first movable end 5123 is movably connected to the first rotating member 515, each second rotating end 5141 is rotatably connected to the first rotating member 515, and each second movable end 5143 is movably connected to the second rotating member 516.

[0057] In one embodiment, the linkage mechanism 51 includes two first linkage members 512, two second linkage members 514, a first rotating member 515 and a second rotating member 516. The two first linkage members 512 are rotatably connected to the two second linkage members 514, respectively. Two opposite first side surfaces 5151 of the first rotating member 515 are respectively provided with a second rotating hole 5152 and a first guide groove 5154. The two second rotating holes 5152 on the first rotating member 515 are coaxial, and the two first guide grooves 5154 are symmetrically arranged about a plane passing through the first rotating axis L1. The two opposite second side surfaces 5161 of the second rotating member 516 are respectively provided with a first rotating hole 5162 and a second guide groove 5164. The two first rotating holes 516 on the second rotating member 516 are respectively provided with a first rotating hole 5162 and a second guide groove 5164. 2 coaxially, the two second guide grooves 5164 are symmetrically arranged about the plane passing through the first rotation axis L1; one of the first linkage members 512 and the corresponding second linkage member 514 are arranged on one side of the first rotating member 515, and the other first linkage member 512 and the corresponding second linkage member 514 are arranged on the other side opposite to the first rotating member 515, the first rotating shaft 5122 and the first guide column 5124 of each first linkage member 512 are respectively inserted into the first rotating hole 5162 of the second rotating member 516 and the first guide groove 5154 of the first rotating member 515, and the second rotating shaft 5142 and the second guide column 5144 of each second linkage member 514 are respectively inserted into the second rotating hole 5152 of the first rotating member 515 and the second guide groove 5164 of the second rotating member 516.

[0058] In one embodiment, the linkage mechanism 51 includes three first linkage members 512, three second linkage members 514, a first rotating member 515, and a second rotating member 516. The three first linkage members 512 are rotatably connected to the three second linkage members 514, respectively. The first front face 5156 of the first rotating member 515 is provided with a first receiving groove, which passes through the first back face 5155 and the first end face 5153 facing the second rotating member 516; the second front face 5166 of the second rotating member 516 is provided with a second receiving groove, which passes through the second back face 5165 and a second end surface 5163 facing the first rotating member 515; a second rotating hole 5152 and a first guide groove 5154 are provided on one of the first side surfaces 5151 of the first rotating member 515, the second rotating hole 5152 passes through the other first side surface 5151 along its axial direction, and the second rotating hole 5152 is connected to the first receiving groove, the first guide groove 5154 passes through the other first side surface 5151 along the axial direction parallel to the second rotating hole 5152, and the first guide groove 5154 is connected to the first receiving groove; a first rotating hole 5152 is provided on one of the second side surfaces 5161 of the second rotating member 516 The first rotating hole 5162 and a second guide groove 5164, the first rotating hole 5162 penetrates the other second side surface 5161 along its axial direction, and the first rotating hole 5162 is connected to the second receiving groove, the second guide groove 5164 penetrates the other second side surface 5161 along the axial direction parallel to the first rotating hole 5162, and the second guide groove 5164 is connected to the second receiving groove; one of the first linkage members 512 and the corresponding second linkage member 514 are arranged on one side of the first rotating member 515, and the other first linkage member 512 and the corresponding second linkage member 514 are arranged on the first rotating member 515 On the other side, there is also a first linkage member 512 and a corresponding second linkage member 514 arranged in the first receiving groove and the second receiving groove; the first rotating shaft 5122 and the first guide column 5124 of each first linkage member 512 are respectively inserted in the first rotating hole 5162 of the second rotating member 516 and the first guide groove 5154 of the first rotating member 515, and the second rotating shaft 5142 and the second guide column 5144 of each second linkage member 514 are respectively inserted in the second rotating hole 5152 of the first rotating member 515 and the second guide groove 5164 of the second rotating member 516.

[0059] In one embodiment, the linkage mechanism 51 may include a plurality of first linkage members 512, a plurality of second linkage members 514, a first rotating member 515 and a second rotating member 516, wherein the first front side 5156 of the first rotating member 515 has two or more first receiving grooves, each of which passes through the first back side 5155 and the first end face 5153 facing the second rotating member 516; the second front side 5166 of the second rotating member 516 has two or more second receiving grooves, each of which passes through the second back side 5165 and the second end face 5163 facing the first rotating member 515, and the two or more first receiving grooves are respectively opposite to the two or more second receiving grooves, and each first receiving groove and the corresponding second receiving groove are used to receive the first linkage member 512 and the corresponding The second linkage member 514; the second rotating hole 5152 on the first rotating member 515 passes through the two opposite first side surfaces 5151 and each first receiving groove, and the first guide groove 5154 on the first rotating member 515 passes through the two opposite second side surfaces 5161 and each second receiving groove along the axial direction parallel to the second rotating hole 5152; the first rotating shaft 5122 and the first guide column 5124 of each first linkage member 512 are respectively inserted into the first rotating hole 5162 of the second rotating member 516 and the first guide groove 5154 of the first rotating member 515, and the second rotating shaft 5142 and the second guide column 5144 of each second linkage member 514 are respectively inserted into the second rotating hole 5152 of the first rotating member 515 and the second guide groove 5164 of the second rotating member 516.

[0060] In other embodiments, the linkage mechanism 51 includes more than two first linkage members 512, more than two second linkage members 514, more than two first rotating members 515, and more than two second rotating members 516. The more than two first linkage members 512 are respectively rotatably connected to the more than two second linkage members 514, each first rotating end 5121 is rotatably connected to the corresponding second rotating member 516, each first movable end 5123 is movably connected to the corresponding first rotating member 515, each second rotating end 5141 is rotatably connected to the corresponding first rotating member 515, and each second movable end 5143 is movably connected to the corresponding second rotating member 516. For example, the linkage mechanism 51 includes two first linkage members 512, two second linkage members 514, two first rotating members 515 and two second rotating members 516. The two first linkage members 512 are respectively rotatably connected to the two second linkage members 514. Each first linkage member 512 and the corresponding second linkage member 514 are connected to one of the first rotating members 515 and the corresponding second rotating member 516, so that the first rotating axis 5122 and the first guide column 5124 of each first linkage member 512 are respectively inserted into the corresponding first rotating hole 5162 and the first guide groove 5154, and the second rotating axis 5142 and the second guide column 5144 of each second linkage member 514 are respectively inserted into the corresponding second rotating hole 5152 and the second guide groove 5164. For example, the linkage mechanism 51 includes three or more first linkage members 512, three or more second linkage members 514, three or more first rotating members 515 and three or more second rotating members 516. The three or more first linkage members 512 are respectively rotatably connected with the three or more second linkage members 514. Each first linkage member 512 and the corresponding second linkage member 514 are connected to a first rotating member 515 and a corresponding second rotating member 516, so that the first rotating axis 5122 and the first guide column 5124 of each first linkage member 512 are respectively inserted into the corresponding first rotating hole 5162 and the first guide groove 5154, and the second rotating axis 5142 and the second guide column 5144 of each second linkage member 514 are respectively inserted into the corresponding second rotating hole 5152 and the second guide groove 5164.

[0061] like Figure 2 and Figure 3As shown, the folding-assisting mechanism 52 includes a base 53, which includes two rotating mechanisms 55 rotatably connected to opposite sides of the base 53, two connecting shafts 560 connected to opposite sides of the base 53, and two connecting rods 561 rotatably connected to the two connecting shafts 560; the rotating mechanism 55 includes a rotating member 550 and a connecting member 555, the rotating member 550 is rotatably connected to the base 53, and one end of the rotating member 550 away from the base 53 is rotatably connected to the connecting member 555; the two connecting rods 561 are slidably connected to the two connecting members 555 at one end away from the base 53, and each connecting rod 561 is slidably connected to the corresponding connecting member 555 through the cooperation of a slide rail and a slide groove; the slide groove is provided at one of the connecting rod 561 and the rotating mechanism 55, and the slide rail is provided at the other of the connecting rod 561 and the rotating mechanism 55, and the slide rail is slidably inserted into the slide groove. The rotation axis of the rotating mechanism 55 and the base 53 is parallel to the axis of the connecting shaft 560. The frame 30 is connected to the side of the rotating mechanism 55 away from the base 53, and the frame 30 and the connecting rod 561 can rotate relative to the base 53 with the rotating mechanism 55. In this embodiment, the rotating shaft device 50 includes two folding-assisting mechanisms 52 arranged on the back of the supporting mechanism 54, and the two folding-assisting mechanisms 52 are arranged along the axial direction parallel to the connecting shaft 560. Specifically, the folding-assisting mechanisms 52 are respectively arranged at the opposite ends of the rotating shaft device 50, and the linkage mechanism 51 is arranged on the back of the supporting mechanism 54 and located between the two folding-assisting mechanisms 52.

[0062] In other embodiments, the rotating shaft device 50 may also only include a folding-assisting mechanism 52 and a linkage mechanism 51, wherein the folding-assisting mechanism 52 is arranged in the middle of the back side of the supporting mechanism 54, the linkage mechanism 51 is located on the back side of the supporting mechanism 54 close to the folding-assisting mechanism 52, and the first rotating member 515 and the second rotating member 516 of the linkage mechanism 51 are respectively located on opposite sides of the supporting mechanism 54.

[0063] In other embodiments, the rotating shaft device 50 may also include more than two folding-assisting mechanisms 52 and more than two linkage mechanisms 51 arranged along the folding axis direction of the rotating shaft device 50. The more than two folding-assisting mechanisms 52 are arranged on the back side of the supporting mechanism 54 and are arranged at intervals from each other along the axial direction of the connecting shaft 260 of the rotating shaft device 50. The more than two linkage mechanisms 51 are arranged on the back side of the supporting mechanism 54 and are arranged at intervals from each other along the axial direction of the connecting shaft 560.

[0064] like Figure 2 and Figure 3As shown, the frame 30 includes a front face 301, a back face 303, two opposite side faces 304 and two end faces 305. The two opposite sides of the hinge device 50 are respectively connected between the two adjacent side faces 304 of the two frames 30. The bendable area 41 of the flexible screen 40 is attached to the front face of the hinge device 50. The two non-bending areas 43 of the flexible screen 40 are respectively connected to the front faces 301 of the two frames 30. A mounting groove 306 is provided on one side of the front face 301 of each frame 30 close to the hinge device 50. The mounting groove 306 passes through the front face 301 of the frame 30. The opposite ends of the mounting groove 306 extend to the opposite end faces 305 close to the frame 30. The two connecting members 555 on the opposite sides of the hinge device 50 are respectively accommodated in the mounting grooves 306 of the two frames 30. Specifically, the frame 30 is provided with a plurality of connection holes on the bottom surface of the mounting groove 306, and the plurality of locking members are respectively connected to the connector 555 through the plurality of connection holes; the back surface of the frame 30 is provided with a plurality of receiving spaces (not shown in the figure), and the receiving spaces are used to install electronic components such as circuit boards and batteries. Optionally, the frame 30 is provided with a positioning hole 218 on the bottom surface of the mounting groove 306, and the positioning hole 218 is used for positioning.

[0065] Please also read Figure 12-Figure 19 The support mechanism 54 includes two middle support members 541 and two side support members 545. The two middle support members 541 are located between the two side support members 545. The two middle support members 541 cover the front of the base 53. The two side support members 545 are rotatably connected to the two middle support members 541. Optionally, the middle support member 541 and the corresponding side support member 545 are rotatably connected through the cooperation of a rotating shaft and a rotating hole. The rotating shaft is provided in one of the middle support member 541 and the side support member 545, and the rotating hole is provided in the other of the middle support member 541 and the side support member 545. The axis of the rotating shaft is parallel to the axis of the connecting shaft 560. In this embodiment, the middle support member 541 and the side support member 545 are both rectangular plates, and the two side support members 545 are respectively rotatably connected to the two connecting rods 561, and the two side support members 545 are respectively rotatably connected to the two connecting members 555 on the sides away from the base 53. Specifically, the side support member 545 and the connecting rod member 561 are slidably and rotatably connected through the cooperation of the adjustment groove and the adjustment shaft, the adjustment groove is provided in one of the side support member 545 and the connecting rod member 561, and the adjustment shaft is provided in the other of the side support member 545 and the connecting rod member 561, and the axis of the adjustment shaft is parallel to the axis of the connecting shaft 560. In this embodiment, an adjustment shaft 5611 is provided at one end of the connecting rod member 561 away from the base 53, and an adjustment groove 5450 is provided on the side of the side support member 545 away from the base 53, and the adjustment shaft 5611 can be rotatably inserted into the adjustment groove 5450. When the two side supports 545 are folded or flattened relative to the base 53 , the adjustment shafts 5611 slide and rotate in the corresponding adjustment slots 5450 .

[0066] Specifically, the side support member 545 includes a side support plate 5451 and an adjustment block 5452 disposed on the back of the side support plate 5451, and the adjustment slot 5450 is disposed on the adjustment block 5452. In this embodiment, two adjustment blocks 5452 are disposed on the back of the side support plate 5451, and the two adjustment blocks 5452 are respectively located at opposite ends of the side support plate 5451, and the adjustment shafts 5611 of the connecting rods 561 of the two folding aid mechanisms 52 can be movably inserted into the adjustment slots 5450 of the two adjustment blocks 5452. The adjustment slot 5450 extends from one side of the side support plate 5451 to the other side, and the middle part of the adjustment slot 5450 is bent toward the side away from the side support plate 5451. The adjustment slot 5450 includes a first positioning section 5453 and a second positioning section 5454 located at opposite ends thereof, and the first positioning section 5453 is farther away from the middle support member 541 than the second positioning section 5454. When the two side support members 545 are in a completely flattened state, the adjustment shaft 5611 is positioned at the first positioning section 5453, so that the front surfaces of the two side support members 545 and the front surfaces of the two middle support members 541 are coplanar, so that the flexible screen can be stably supported to prevent the flexible screen from sinking and being damaged. When the two side support members 545 are in a completely folded state, the adjustment shaft 5611 is positioned at the second positioning section 5454, so that the front surfaces of the two side support members 545 and the front surfaces of the two middle support members 541 form a water drop-shaped storage space, so as to facilitate the storage of the bendable area of ​​the flexible screen.

[0067] The rotation axis between the side support member 545 and the connecting member 555 is parallel to the axis of the connecting shaft 560. The side support member 545 and the connecting member 555 are rotatably connected through the cooperation of the first circular arc groove and the first circular arc rail. The first circular arc groove is provided in one of the side support member 545 and the connecting member 555, and the first circular arc rail is provided in the other of the side support member 545 and the connecting member 555. The axis of the first circular arc groove is parallel to the axis of the connecting shaft 560. Specifically, a plurality of arc plates 5455 are provided on one side of the side support member 545 away from the middle support member 541, each arc plate 5455 is provided with a first arc groove 5456, the plurality of first arc grooves 5456 are coaxial, one end of the first arc groove 5456 extends to the back of the side support member 5451, and the other end of the first arc groove 5456 passes through the arc plate 5455 to separate the side of the middle support member 541, and the opposite ends of the connecting member 555 are respectively provided with first arc rails 5552, and the two first arc rails 5552 are respectively rotatably accommodated in the corresponding two first arc grooves 5456. In other embodiments, the first arc groove of the side support member 545 is interchangeable with the first arc rail of the connecting member 555.

[0068] In this embodiment, a slide rail 5610 is provided at one end of the connecting rod 561 away from the base 53, and a slide groove 5550 is provided at the connecting member 555. The length direction of the slide groove 5550 is perpendicular to the axis of the connecting shaft 560, and the slide rail 5610 is slidably inserted in the slide groove 5550. In other embodiments, a slide groove is provided at one end of the connecting rod 561 away from the base 53, and the connecting member 555 is provided with a slide rail, the slide groove is perpendicular to the axis of the connecting shaft 560, and the slide rail is slidably inserted in the slide groove. The rotating member 550 and the base 53 are rotatably connected through the cooperation of the second circular arc rail and the second circular arc groove, and the axis of the second circular arc rail is parallel to the axis of the connecting shaft 560. The second circular arc rail is provided at one of the rotating member 550 and the base 53, and the second circular arc groove is provided at the other of the rotating member 550 and the base 53. In this embodiment, a second arc track 5501 is provided at one end of the rotating member 550 away from the connecting member 555, a second arc groove 530 is provided at one side of the base 53, and the second arc track 5501 is rotatably accommodated in the second arc groove 530. The rotating member 550 and the connecting member 555 are rotatably connected via a rotating shaft, and the rotation axis between the rotating member 550 and the connecting member 555 is parallel to the axis of the connecting shaft 560.

[0069] The rotating member 550 includes a first rotating portion 5503 and a second rotating portion 5505 located at opposite ends thereof, a second circular arc track 5501 is provided at the end of the first rotating portion 5503, and the second rotating portion 5505 is rotatably connected to the connecting member 555. In this embodiment, the second circular arc tracks 5501 are respectively provided on opposite sides of the first rotating portion 5503, and the two second circular arc tracks 5501 are coaxial. Two rotating cylinders spaced apart are provided on one side of the second rotating portion 5505 away from the first rotating portion 5503, and the two rotating cylinders are coaxial, and two avoidance openings spaced apart from each other are provided at one end of the connecting member 555, and the two rotating cylinders are rotatably accommodated in the two avoidance openings, respectively, and a rotating shaft is provided through the rotating cylinder and the connecting member 555, so that the rotating member 550 is rotatably connected to the connecting member 555.

[0070] The connecting member 555 is in the shape of a strip, and includes a transition portion 5554 and a guide slide portion 5556 disposed at opposite ends thereof, and a connecting portion 5557 connected between the transition portion 5554 and the guide slide portion 5556; the second rotating portion 5505 is rotatably connected to the transition portion 5554, a slide groove 5550 is disposed on the guide slide portion 5556, and a slide rail 5610 is slidably inserted into the slide groove 5550. A guide groove 5556a is disposed on the front of the guide slide portion 5556, and opposite ends of the guide groove 5556a respectively penetrate opposite sides of the guide slide portion 5556, and one end of the connecting rod 561 away from the base 53 is slidably accommodated in the guide groove 5556a; a slide groove 5550 is disposed on the inner side surface of the guide groove 5556a, and the slide groove 5550 penetrates opposite sides of the guide slide portion 5556 along an axial direction perpendicular to the connecting shaft 560. In this embodiment, two opposite inner side surfaces of the guide groove 5556 a are respectively provided with sliding grooves 5550 , and two sliding rails 5610 of the connecting rod 561 are respectively slidably inserted into the two sliding grooves 5550 .

[0071] The base 53 is an elongated body, and includes a first mounting portion 531 and a second mounting portion 533 located at opposite ends thereof, and a third mounting portion 535 connected between the first mounting portion 531 and the second mounting portion 533. The first mounting portion 531 is used to mount the rotating member 550. The first mounting portion 531 has arc-shaped rotation-assisting grooves 5311 on opposite sides of the front surface, the first rotating portion 5503 is rotatably accommodated in the rotation-assisting grooves 5311, and the second arc rail 5501 is rotatably accommodated in the corresponding second arc groove 530. Specifically, the first mounting portion 531 has protrusions 5312 on opposite sides of one end of the front surface away from the third mounting portion 535, and the surface of each protrusion 5312 facing the third mounting portion 535 is provided with a second arc groove 530. Optionally, the inner surface of the rotation-assisting groove 5311 is provided with an arc surface, and the axis of the rotation-assisting groove 5311 on the same side of the base 53 is collinear with the axis of the second arc groove 530. The second mounting portion 533 includes a support bar 5331 connected to the third mounting portion 535 and a positioning piece 5332 disposed on the support bar 5331 away from the first mounting portion 531. The opposite ends of the positioning piece 5332 extend out of the opposite sides of the support bar 5331. The opposite ends of the positioning piece 5332 are respectively provided with a connecting hole 5334 and a guide slide shaft 5336. The axis of the guide slide shaft 5336 is spaced and parallel to the axis of the connecting hole 5334. The third mounting portion 535 includes a connecting bar 5351 connected between the first mounting portion 531 and the second mounting portion 533, two support pieces 5353 connected to the first mounting portion 531, and guide slide blocks 5355 disposed on opposite sides of the connecting bar 5351. The two support pieces 5353 are respectively disposed on opposite sides of the connecting bar 5351, and the front side of the support piece 5353 is an arc surface. The two guide slide blocks 5355 are located at one end close to the second mounting portion 533.

[0072] The rotating shaft device 50 further includes a positioning member 58, which is connected to the third mounting portion 535. The positioning member 58 and the base 53 jointly position the rotating member 550. The positioning member 58 includes positioning portions 582 located at opposite ends thereof, and a connecting portion 585 connected between the two positioning portions 582. A third circular arc groove 5821 is respectively provided on the same side of the two positioning portions 582. The axes of the two third circular arc grooves 5821 are parallel. The second circular arc rails 5501 of the two rotating members 550 away from the protrusion 5312 are respectively rotatably accommodated in the two third circular arc grooves 5821 of the positioning member 58. Optionally, the back surface of the positioning portion 582 is set as a circular arc surface that matches the front surface of the supporting sheet 5353, so that the positioning member 58 can slide on the supporting sheet 5353 along the axis direction of the third circular arc groove 5821. In other embodiments, the third circular arc groove 5821 on the positioning portion 582 and the second circular arc rail 5501 on the rotating member 550 can be interchanged. The positioning member 58 and the base 53 are slidably connected through the cooperation of a guide slider and a guide slot, the guide slider is provided on one of the positioning member 58 and the base 53, and the guide slot is provided on the other of the positioning member 58 and the base 53; in this embodiment, a guide slider 5355 is provided on the side of the connecting strip 5351, and a guide slot 586 is provided on the back of the positioning member 58, and the guide slider 5355 is slidably accommodated in the guide slot 586, so that the positioning member 58 can move along the length direction of the base 53. The sides of the two positioning portions 582 facing away from the third arc slot 5821 are provided with connecting holes 5824, and the axes of the two connecting holes 5824 are parallel.

[0073] The rotating shaft device 50 also includes a linkage member 57 and a push-up assembly 59. Two connecting rods 561 are rotatably connected to a pair of connecting shafts 560 respectively. The linkage member 57 is arranged between the two connecting rods 561. The linkage member 57 is connected to the pair of connecting shafts 560 and can slide relative to the base 53 along the axial direction of the connecting shafts 560. The two connecting rods 561 are respectively connected to the linkage member 57 through a spiral surface. When one of the connecting rods 561 or the two connecting rods 561 rotate around the corresponding connecting shaft 560, the linkage member 57 slides along the axial direction of the connecting shaft 560 to drive the two connecting rods 561 to rotate synchronously relative to the base 53 to fold or unfold each other, so as to drive the two connecting rods 561 to rotate synchronously relative to the base 53 to achieve mutual folding or mutual flattening. It should be noted that the first direction is opposite to the second direction, and the first direction and the second direction are parallel to the axial direction of the connecting shaft 560.

[0074] The connecting rod 561 further includes a rotating portion 5613 rotatably connected to the connecting shaft 560, a sliding portion 5614, and a connecting plate 5615 connected between the rotating portion 5613 and the sliding portion 5614, and a slide rail 5610 is arranged on the side of the sliding portion 5614. Specifically, the rotating portion 5613 is a rotating cylinder, and the rotating cylinder is provided with a rotating hole 5612 along its axial direction, and the connecting shaft 560 is inserted into the rotating hole 5612 of the rotating cylinder. The sliding portion 5614 is a rectangular plate, and the slide rails 5610 are respectively arranged on opposite sides of the rectangular plate, and the slide rails 5610 are perpendicular to the axis of the rotating cylinder. A cam 5616 is arranged at one end of the rotating portion 5613, and the rotating portion 5613 and the cam 5616 are coaxial. The cam 5616 includes a concave-convex surface provided at the end of the rotating cylinder, the concave-convex surface includes a first protruding portion 5616a and a first concave portion 5616b, the first protruding portion 5616a and the first concave portion 5616b are sequentially arranged at intervals along the circumference of the rotating cylinder; the number of the first protruding portions 5616a and the number of the first concave portions 5616b can be set as needed, such as the cam 5616 may include one first protruding portion 5616a and one first concave portion 5616b, two first protruding portions 5616a and two first concave portions 5616b, three first protruding portions 5616a and three first concave portions 5616b, or four first protruding portions 5616a and four first concave portions 5616b, etc. In this embodiment, the cam 5616 includes three first protruding portions 5616a and three first concave portions 5616b arranged at intervals along the circumference of the rotating cylinder.

[0075] The connecting rod 561 is provided with a receiving groove 5617, and the linkage member 57 is passed through a pair of connecting shafts 560, and the side of the linkage member 57 is received in the receiving groove 5617. Specifically, the outer peripheral surface of the rotating part 5613 is provided with a receiving groove 5617, and the receiving groove 5617 extends to the connecting plate 5615 along the radial direction of the rotating part 5613, and the receiving groove 5617 is connected with the rotating hole 5612. Specifically, the connecting rod 561 includes a first abutting spiral surface 5617a and a second abutting spiral surface 5617b, and the rotation direction of the first abutting spiral surface 5617a is opposite to the rotation direction of the second abutting spiral surface 5617b, and the axis of the first abutting spiral surface 5617a is colinear with the axis of the second abutting spiral surface 5617b, and the first abutting spiral surface 5617a and the second abutting spiral surface 5617b are respectively located at opposite ends of the receiving groove 5617. Specifically, the first abutting spiral surface 5617a is provided on the inner end surface of the receiving groove 5617 close to the cam 5616, and the second abutting spiral surface 5617b is provided on the inner end surface of the receiving groove 5617 away from the cam 5616. The axis of the first abutting spiral surface 5617a, the axis of the second abutting spiral surface 5617b, and the rotation axis of the rotating part 5613 are collinear.

[0076] The first helical surface 571 and the second helical surface 573 are provided on opposite sides of the linkage member 57. The first helical surface 571 and the second helical surface 573 on the same side of the linkage member 57 are coaxial. The first abutting helical surface 5617a cooperates with the first helical surface 571, and the second abutting helical surface 5617b cooperates with the second helical surface 573. The first helical surface 571 and the second helical surface 573 have opposite rotation directions, the first helical surface 571 and the first abutting helical surface 5617a have the same rotation direction, and the second helical surface 573 and the second abutting helical surface 5617b have the same rotation direction. The two connecting rods 561 can rotate around a pair of connecting shafts 560 respectively, but the two connecting rods 561 cannot move along the axial direction of the connecting shaft 560. The linkage member 57 is slidably sleeved on the pair of connecting shafts 560 along the axial direction of the connecting shaft 560. When one of the connecting rod members 561 rotates around the corresponding connecting shaft 560, the first abutting spiral surface 5617a and the second abutting spiral surface 5617b respectively slide against the first spiral surface 571 and the second spiral surface 573 on one side of the linkage member 57, so that the linkage member 57 moves axially along the connecting shaft 560. At the same time, the first spiral surface 571 and the second spiral surface 573 on the other side of the linkage member 57 slide against the first abutting spiral surface 5617a and the second abutting spiral surface 5617b of the other connecting rod member 564 respectively. Since the two connecting rod members 561 cannot move axially along the connecting shaft 560, the sliding of the linkage member 57 along the connecting shaft 560 can realize the synchronous rotation of the two connecting rod members 561 and folding or unfolding.

[0077] Specifically, the linkage 57 includes two parallel and spaced sliding cylinders 572 and a connecting plate 574 connected between the two sliding cylinders 572, a pair of connecting shafts 560 are respectively passed through the two sliding cylinders 572, a first helical surface 571 and a second helical surface 573 are respectively provided at two opposite ends of each sliding cylinder 572, and the axis of the first helical surface 571 and the axis of the second helical surface 573 are collinear; further, the first helical surface 571 is provided on the side of the sliding cylinder 572 close to the connecting plate 574, and the first helical surface 571 rotates less than one circle around the axis of the sliding cylinder 572, and the second helical surface 573 is provided on the side of the sliding cylinder 572 close to the connecting plate 574, and the second helical surface 573 rotates less than one circle around the axis of the sliding cylinder 572.

[0078] The resisting assembly 59 includes a resisting member 591 and an elastic member 594. The resisting member 591 is slidably mounted on a pair of connecting shafts 560. The resisting member 591 and the connecting rod member 561 cooperate with each other through a cam. The elastic member 594 is used to push the resisting member 591 and the connecting rod member 561 to resist each other. When the connecting rod member 561 rotates around the corresponding connecting shaft 560, there is a friction resistance between the resisting member 591 and the connecting rod member 561, and the friction resistance can hinder the two connecting rod members 561 from rotating around the pair of connecting shafts 560 respectively. In this embodiment, the resisting member 591 includes two resisting cams 5910 mounted on the pair of connecting shafts 560. The pair of connecting shafts 560 are respectively penetrated by the cams 5616 of the two connecting rod members 561 and the two resisting cams 5910 of the resisting member 591. The two resisting cams 5910 are rotatably resisted by the cams 5616 of the two connecting rod members 561 respectively. Specifically, the supporting member 591 includes two supporting tubes 592 spaced apart in parallel and a connecting portion 593 connected between the two supporting tubes 592 . The axes of the two supporting tubes 592 are spaced apart in parallel, and the two supporting tubes 592 can be slidably mounted on a pair of connecting shafts 560 .

[0079] Each of the abutting cylinders 592 is provided with an abutting cam 5910 at one end facing the connecting rod 561. Each of the abutting cams 5910 includes a concave-convex surface provided at one end of the abutting cylinder 592 away from the elastic member 594. The concave-convex surface includes a second protruding portion 5911 and a second recessed portion 5913. The second protruding portions 5911 and the second recessed portions 5913 are sequentially arranged at intervals along the circumference of the abutting cylinder 592. The number of the second protruding portions 5911 and the number of the second recessed portions 5913 can be set as required, such as the abutting cam 5910 can include one second protruding portion 5911 and one second recessed portion 5913, two second protruding portions 5911 and two second recessed portions 5913, three second protruding portions 5911 and three second recessed portions 5913, or four second protruding portions 5911 and four second recessed portions 5913, etc. In this embodiment, the abutting cam 5910 includes three second protrusions 5911 and three second recesses 5913 arranged at intervals along the circumference of the abutting cylinder 592. The axis of each abutting cam 5910 is colinear with the axis of the corresponding abutting cylinder 592. Preferably, the opposite end surfaces of the abutting member 591 form arc surfaces to facilitate the folding or unfolding of the rotating shaft device 50.

[0080] The rotating shaft device 50 further includes a back cover 547 , and two fixing portions 5472 are respectively provided at opposite ends of the front surface of the back cover 547 , and the fixing portions 5472 are used to respectively fix the bases 53 of the two folding assisting mechanisms 52 . The linkage mechanism 51 is disposed in the middle of the front surface of the back cover 547 .

[0081] Please also read Figure 1-Figure 3 and Figure 20-Figure 27When the electronic device 100 is bent, a bending force is applied to at least one of the two frames 30 of the electronic device 100, so that the connecting member 555 connected to the two frames 30 drives the two rotating members 550 to rotate relative to the base 53 and rotate in a direction close to each other, the side support member 545 rotates relative to the connecting member 555, and the side support member 545 is connected to the adjustment shaft 5611 through the cooperation of the adjustment groove 5450 to rotate and slide, and the two connecting members 555 respectively drive the two connecting rod members 561 to rotate relative to the base 53 and move closer to each other, and the first abutting spiral surface 5617a and the second abutting spiral surface 5617b of the connecting rod member 561 slide against the first spiral surface 571 and the second spiral surface 573 respectively, so that the linkage member 57 slides in the first direction along the axial direction of the connecting shaft 560, and at the same time When the folding shell 20 is folded, the first linkage member 512 and the second linkage member 514 are synchronously rotated in opposite directions around the rotating shaft 517 and approach each other, the first rotating shaft 5122 rotates in the first rotating hole 5162, the first guide column 5124 rolls from the first end 5154a of the first guide groove 5154 to the second end 5154b, the second rotating shaft 5142 rotates in the second rotating hole 5152, and the second guide column 5144 rolls from the third end 5164a of the second guide groove 5164 to the fourth end 5164b, and the two frames 30 are synchronously rotated in opposite directions and approach each other through the linkage member 57 and the linkage mechanism 51, so as to realize the synchronous folding of the folding shell 20, and the bendable area 41 of the flexible screen 40 is bent along with the rotating shaft device 50 until the bendable area 41 is bent into a water drop shape, thereby realizing the folding of the electronic device 100.

[0082] When the electronic device 100 is flattened, an unfolding force is applied to at least one of the two frames 30 of the electronic device 100, so that the connecting member 555 connected to the two frames 30 drives the two rotating members 550 to rotate relative to the base 53 and rotate in a direction away from each other, the side support member 545 rotates relative to the connecting member 555, and the side support member 545 is connected to the adjusting shaft 5611 through the cooperation of the adjusting groove 5450 to rotate and slide, the two connecting members 555 respectively drive the two connecting rod members 561 to rotate relative to the base 53 and move away from each other, the first abutting spiral surface 5617a and the second abutting spiral surface 5617b of the connecting rod member 561 slide against the first spiral surface 571 and the second spiral surface 573 respectively, so that the linkage member 57 slides in the second direction along the axial direction of the connecting shaft 560, and at the same time, the first linkage member 561 is rotated relative to the connecting member 555. The first rotating shaft 5122 rotates in the first rotating hole 5162, the first guide column 5124 rolls from the second end 5154b of the first guide groove 5154 to the first end 5154a, the second rotating shaft 5142 rotates in the second rotating hole 5152, and the second guide column 5144 rolls from the fourth end 5164b of the second guide groove 5164 to the third end 5164a. The two frames 30 are rotated synchronously and moved away from each other through the linkage member 57 and the linkage mechanism 51, so as to realize the synchronous unfolding of the folding shell 20, until the two side support members 545 are flattened, and the bendable area 41 of the flexible screen 40 unfolds along with the rotating shaft device 50 until the flexible screen 40 is completely flattened, thereby realizing the flattening of the electronic device 100.

[0083] The hinge device 50 of the electronic device 100 of the present invention can realize the synchronous folding or synchronous unfolding of the two side support members 545 through the linkage mechanism 51 on the hinge device 50 and the linkage member 57 arranged between the two connecting rods 561, which is easy to operate; the hinge device 50 has fewer components, a simple structure, and a low manufacturing cost, which reduces the internal space of the folding shell 20 occupied by the hinge device 50, which is beneficial to the layout of other components such as the motherboard or the battery. Secondly, the hinge device 50 uses the friction resistance between the abutting member 591 of the abutting assembly 59 and the connecting rod 561 and the friction resistance between the rotating member 550 and the base 53 and the positioning member 58, so that the bendable area 41 of the flexible screen 40 is positioned at any bending angle, so that the two frames 30 can be freely adjusted in the flattened state, the fully folded state and the intermediate folded state, that is, the electronic device 100 can be positioned in the flattened state, the folded state and any intermediate folded state, so that the two frames 30 of the electronic device 100 have a hovering function of 0 to 180 degrees, and the hovering angle range is large.

[0084] In the embodiment, the folding housing 20 includes more than two linkage mechanisms 51, and the more than two linkage mechanisms 51 are arranged along the axial direction parallel to the connecting shaft 560. For example, the folding housing 20 includes two linkage mechanisms 51, and the two linkage mechanisms 51 are respectively arranged at opposite ends of the rotating shaft device 50, and the first rotating member 515 and the second rotating member 516 of each linkage mechanism 51 are respectively connected to the two frames 30. For example, the folding housing 20 includes three linkage mechanisms 51, wherein two linkage mechanisms 51 are respectively arranged at opposite ends of the rotating shaft device 50, and another linkage mechanism 51 is arranged in the middle of the rotating shaft device 50, and the first rotating member 515 and the second rotating member 516 of each linkage mechanism 51 are respectively connected to the two frames 30.

[0085] The above is an implementation of the embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A linkage mechanism, characterized in that: The linkage mechanism includes: a first linkage member, a second linkage member, a first rotating member and a second rotating member, the first linkage member and the second linkage member are rotatably connected to each other, the first linkage member includes a first rotating end and a first movable end located at its opposite ends, the second linkage member includes a second rotating end and a second movable end located at its opposite ends, the first rotating end is rotatably connected to the second rotating member, the first movable end is movably connected to the first rotating member, the second rotating end is rotatably connected to the first rotating member, and the second movable end is movably connected to the second rotating member; when the first linkage member rotates relative to the second linkage member, the first rotating member and the second rotating member rotate synchronously in opposite directions.

2. The linkage mechanism according to claim 1, characterized in that: The first movable end is slidably and rotatably connected to the first rotating member, and the second movable end is slidably and rotatably connected to the second rotating member; the first rotation axis between the first linkage member and the second linkage member, the second rotation axis between the first rotating end and the second rotating member, and the third rotation axis between the second rotating end and the first rotating member are parallel to each other.

3. The linkage mechanism according to claim 2, characterized in that: The first rotation axis is located between the first rotating member and the second rotating member. During the movement of the linkage mechanism from the flattened state to the folded state, the distance between the first movable end and the second movable end gradually decreases, and the distance between the first movable end and the second rotating end and the distance between the second movable end and the first rotating end both gradually decrease.

4. The linkage mechanism according to claim 2, characterized in that: The first movable end and the first rotating member are connected by a first guide groove and a first guide column, and the second movable end and the second rotating member are connected by a second guide groove and a second guide column. The axis of the first guide column is parallel to the axis of the second guide column; the second rotation axis and the third rotation axis are equidistant from a middle plane passing through the first rotation axis, and the first guide groove and the second guide groove are symmetrical about the middle plane.

5. The linkage mechanism according to claim 4, characterized in that: The first rotating end and the second rotating member are connected by the cooperation of the first rotating shaft and the first rotating hole, and the second rotating end and the first rotating member are connected by the cooperation of the second rotating shaft and the second rotating hole. The axis of the first rotating shaft is collinear with the first rotating axis, and the axis of the second rotating shaft is collinear with the second rotating axis.

6. The linkage mechanism according to claim 2, characterized in that: The first rotating end and the second rotating end are located between the first moving end and the second moving end, the distance between the second rotating axis and the first rotating axis is equal to the distance between the third rotating axis and the first rotating axis, and the distance between the axis center of the first moving end and the first rotating axis is equal to the distance between the axis center of the second moving end and the first rotating axis.

7. The linkage mechanism according to claim 2, characterized in that: The first linkage also includes a first hinged portion, a first connecting bar and a second connecting bar, the first connecting bar is connected between the first rotating end and the first hinged portion, and the second connecting bar is connected between the first movable end and the first hinged portion; the second linkage also includes a second hinged portion, a third connecting bar and a fourth connecting bar, the third connecting bar is connected between the second rotating end and the second hinged portion, and the fourth connecting bar is connected between the second movable end and the second hinged portion; the first hinged portion and the second hinged portion are connected via a rotating shaft, and the axis of the rotating shaft is colinear with the first rotating axis.

8. The linkage mechanism according to claim 4, characterized in that: The first guide groove includes a first end and a second end located at opposite ends thereof, the first end is farther away from the first rotation axis than the second end, and the second guide groove includes a third end and a fourth end located at opposite ends thereof, the third end is farther away from the first rotation axis than the fourth end; When the linkage mechanism is in a flattened state, the first movable end is positioned at the first end, and the second movable end is positioned at the third end; When the linkage mechanism is in a folded state, the first moving end is positioned at the second end, and the second moving end is positioned at the fourth end.

9. The linkage mechanism according to claim 5, characterized in that: The first rotating member includes two opposite first side surfaces, two opposite first end surfaces, a first back surface and a first front surface, the second rotating hole and the first guide groove are arranged on one of the first side surfaces, and are close to the intersection of the first front surface and one of the first end surfaces; the second rotating member includes two opposite second side surfaces, two opposite second end surfaces, a second back surface and a second front surface, the first rotating hole and the second guide groove are arranged on one of the second side surfaces, and are close to the intersection of the second front surface and one of the second end surfaces.

10. The linkage mechanism according to claim 9, characterized in that: When the linkage mechanism is in a flattened state, one of the first end faces is arranged opposite to one of the second end faces, the first rotation axis is located between the first back side and the second back side, the first guide groove is inclined along the direction toward the first end face and the first back side and is straight, the second rotation hole is located above the first guide groove, the second guide groove is inclined along the direction toward the second end face and the second back side and is straight, and the first rotation hole is located above the second guide groove.

11. The linkage mechanism according to claim 1, characterized in that: The linkage mechanism includes more than two of the first linkage members, more than two of the second linkage members, one first rotating member, and one second rotating member. The more than two of the first linkage members are respectively rotatably connected to the more than two of the second linkage members, each of the first rotating ends is rotatably connected to the second rotating member, each of the first moving ends is movably connected to the first rotating member, each of the second rotating ends is rotatably connected to the first rotating member, and each of the second moving ends is movably connected to the second rotating member.

12. The linkage mechanism according to claim 1, characterized in that: The linkage mechanism includes more than two first linkage members, more than two second linkage members, more than two first rotating members, and more than two second rotating members. The more than two first linkage members are respectively rotatably connected to the more than two second linkage members, each first rotating end is rotatably connected to the corresponding second rotating member, each first moving end is movably connected to the corresponding first rotating member, each second rotating end is rotatably connected to the corresponding first rotating member, and each second moving end is movably connected to the corresponding second rotating member.

13. A foldable housing, characterized in that: The folding shell includes a rotating shaft device and two frames, the rotating shaft device includes the linkage mechanism as described in any one of claims 1-12, the rotating shaft device is located between the two frames, and the first rotating member and the second rotating member of the linkage mechanism are respectively connected to the two frames.

14. The folding housing according to claim 13, characterized in that: The rotating shaft device includes two or more linkage mechanisms arranged along the folding axis direction of the rotating shaft device.

15. An electronic device, characterized in that: The electronic device comprises a flexible screen and a folding shell as described in any one of claims 12 to 14, and the flexible screen is connected to the folding shell.

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