Rotating mechanism of flexible screen and mobile terminal

Abstract

This invention relates to a rotating mechanism for a flexible screen and a mobile terminal. The rotating mechanism includes a middle plate and a flexible screen. Tracking components are respectively provided at both ends of the same side of the middle plate. The flexible screen is disposed on the side of the middle plate. Both ends of the flexible screen are movably connected to the tracking components. The tracking components can drive the flexible screen to bend to a preset angle. A screen-accommodating space is formed between the flexible screen and the middle plate. The screen-accommodating space can accommodate the bent part of the flexible screen when it is bent, and there is a gap between the bent part and the reference surface A of the middle plate. The solution provided by this invention can reduce the number of parts, reduce the assembly difficulty and the weight of the rotating shaft while ensuring the movement principle and mechanical requirements of the flexible screen. This results in a reduction of the cumulative tolerance of the flexible screen assembly, enhanced mechanical performance, and an effective extension of the lifespan of the flexible screen.

Description

Technical Field

[0001] This invention relates to the field of rotating mechanism technology for flexible screens, and more particularly to a rotating mechanism for a flexible screen and a mobile terminal. Background Technology

[0002] The existing flexible screen rotation mechanism of mobile terminals has a large number of parts, a complex structure, and is difficult to assemble. There are significant problems with the lifespan and abnormal noise of each component. Furthermore, due to the large number of parts, the assembly precision is not high and the cumulative tolerance is large.

[0003] Furthermore, the existing rotating mechanism folds and compresses the flexible screen quite severely, resulting in obvious horizontal folds and often having avoidance arcs. This leads to poor overall quality and user experience, and the compression from the rotating mechanism reduces the reliability and lifespan of the flexible screen. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a rotating mechanism for a flexible screen and a mobile terminal, which aims to solve the problem of rotation and collision avoidance of existing flexible screens.

[0005] This invention aims to design a rotating mechanism for a flexible screen, the rotating mechanism comprising a middle plate and a flexible screen; trajectory components are respectively provided at both ends of the same side of the middle plate; the flexible screen is disposed on the side of the middle plate; both ends of the flexible screen are movably connected to the trajectory components; the trajectory components can drive the flexible screen to bend to a preset angle; a screen-accommodating space is formed between the flexible screen and the middle plate; the screen-accommodating space can accommodate the bent part of the flexible screen when it is bent, and a gap exists between the bent part and the reference surface A of the middle plate.

[0006] In some embodiments, the trajectory assembly includes a fixed base, a trajectory swing arm, and a mid-frame fixing block; the fixed base is fixedly disposed on the side of the mid-frame; the trajectory swing arm includes a first trajectory swing arm and a second trajectory swing arm; the first trajectory swing arm is rotatably disposed on one side of the fixed base and connected to one side of the flexible screen, thereby enabling the flexible screen to bend; the second trajectory swing arm is rotatably disposed on the other side of the fixed base and connected to the other side of the flexible screen, thereby enabling the flexible screen to bend.

[0007] In some embodiments, the trajectory component further includes a first mid-frame fixing block and a second mid-frame fixing block; one end of the first mid-frame fixing block is connected to the first trajectory swing arm, and the other end of the first mid-frame fixing block is connected to one side of the flexible screen, thereby enabling the first trajectory swing arm to rotate; one end of the second mid-frame fixing block is connected to the second trajectory swing arm, and the other end of the second mid-frame fixing block is connected to the other side of the flexible screen, thereby enabling the second trajectory swing arm to rotate.

[0008] In some embodiments, torsion components are provided at both ends of the same side of the middle plate; the torsion components are connected to the trajectory components in a transmission manner; when the trajectory components drive the flexible screen to bend to a preset angle range, they can simultaneously drive the torsion components to clamp and generate friction, thereby suspending the flexible screen at the preset angle.

[0009] In some embodiments, the torque assembly includes a synchronous swing arm, a cam block, an elastic linkage, and a friction plate; one side of the synchronous swing arm is connected to the track assembly, so that it can rotate with the track assembly; the synchronous swing arm is also provided with a swing arm tooth, which can rotate with the synchronous swing arm; one end of the cam block is provided with a cam tooth, which can move with the cam block; the other end of the cam block abuts against one end of the elastic linkage, and the friction plate is disposed at the other end of the elastic linkage; the cam tooth and the swing arm tooth are meshed together by helical teeth; during the rotation of the synchronous swing arm, the helical teeth can drive the cam tooth to move, and the cam block can press the elastic linkage and the friction plate together, thereby generating friction.

[0010] In some embodiments, the elastic linkage includes a first baffle, a second baffle, a compression spring, and a connecting shaft; one end of the connecting shaft is connected to the rocker arm gear, so that it can rotate together with the rocker arm gear; the other end of the connecting shaft is connected to the friction plate, so that it can drive the friction plate to rotate synchronously; the cam gear, the compression spring, and the first baffle are respectively sleeved on the connecting shaft, and the compression spring is clamped between the cam gear and the first baffle; the friction plate is disposed between the first baffle and the second baffle; the cam gear can compress the compression spring to make the first baffle squeeze the friction plate and clamp it together with the second baffle, thereby increasing the friction force.

[0011] In some embodiments, the synchronous swing arm includes a first synchronous swing arm and a second synchronous swing arm, the compression spring includes a first compression spring and a second compression spring, the connecting shaft includes a first connecting shaft and a second connecting shaft, the friction plate includes a first friction plate and a second friction plate, and the cam block is provided with a first cam tooth and a second cam tooth; one side of the first synchronous swing arm is connected to the first middle frame fixing block of the track assembly and can rotate together with the first middle frame fixing block; one side of the second synchronous swing arm is connected to the second middle frame fixing block of the track assembly and can rotate together with the second middle frame fixing block; the swing arm teeth on the first synchronous swing arm and the swing arm teeth on the second synchronous swing arm are transmitted through a synchronous gear. The first connecting shaft is connected to the swing arm teeth of the first synchronous swing arm, and the other end of the first connecting shaft passes through one end of the first baffle and is connected to the first friction plate; one end of the second connecting shaft is connected to the swing arm teeth of the second synchronous swing arm, and the other end of the second connecting shaft passes through the other end of the first baffle and is connected to the second friction plate; the first cam tooth and the first compression spring are respectively sleeved on the first connecting shaft, and the first compression spring is clamped between the first cam tooth and one end of the first baffle; the second cam tooth and the second compression spring are respectively sleeved on the second connecting shaft, and the second compression spring is clamped between the second cam tooth and the other end of the first baffle.

[0012] In some embodiments, the rotating mechanism further includes a first side plate and a second side plate; the first side plate and the second side plate are symmetrically arranged on both sides of the side of the middle plate and are rotatably connected to the middle plate; the two ends of the first side plate are also movably connected to the track assembly, and the two ends of the second side plate are also movably connected to the track assembly; the track assembly can drive the first side plate and the second side plate to rotate simultaneously when rotating.

[0013] In some embodiments, the trajectory component and the torque component are disposed on the lower side of the intermediate plate; the flexible screen is disposed on the upper side of the intermediate plate and is respectively attached to the first side plate and the second side plate.

[0014] The present invention also provides a mobile terminal, including a rotating mechanism, wherein the rotating mechanism is the aforementioned rotating mechanism of the flexible screen.

[0015] In some embodiments, the mobile terminal is preferably a mobile phone or a tablet computer.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention.

[0017] The solution provided by this invention can reduce the number of parts, reduce assembly difficulty and pivot weight while ensuring the movement principle and mechanical requirements of the flexible screen. This results in a reduction of the cumulative tolerance of the flexible screen assembly, enhanced mechanical performance, and an effective extension of the lifespan of the flexible screen. Attached Figure Description

[0018] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0019] Figure 1 This is an exploded view of a rotating mechanism for a flexible screen according to an exemplary embodiment of the present invention;

[0020] Figure 2 This is a top view of a rotating mechanism for a flexible screen according to an exemplary embodiment of the present invention;

[0021] Figure 3 This is a bottom view of a rotating mechanism for a flexible screen according to an exemplary embodiment of the present invention;

[0022] Figure 4 This is a bottom view of a rotating mechanism for a flexible screen according to an exemplary embodiment of the present invention;

[0023] Figure 5 It is based on the present invention Figure 3 Partial schematic diagram;

[0024] Figure 6 This is a schematic diagram illustrating the transmission and engagement of the cam teeth and the rocker arm teeth according to an exemplary embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram illustrating the transmission cooperation between the trajectory component and the torque component according to an exemplary embodiment of the present invention;

[0026] Figure 8 This is a perspective view of a rotating mechanism for a flexible screen according to an exemplary embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of a flexible screen rotation mechanism and a folded flexible screen according to an exemplary embodiment of the present invention.

[0028] Figure 10 This is a schematic diagram of a flexible screen rotation mechanism and a folded flexible screen, as shown in the prior art.

[0029] In the diagram: 1. First side plate; 2. Middle plate; 3. Second side plate; 4. Cam block; 5. Fixing block; 6. First baffle; 7. Second baffle; 8. Friction plate; 9. Synchronous gear; 10. First synchronous swing arm; 11. First middle frame fixing block; 12. First track swing arm; 13. Fixed base; 14. Second track swing arm; 15. Second middle frame fixing block; 16. Second synchronous swing arm; 17. Compression spring; 18. Connecting shaft; 19. Gear tooth; 20. Cam tooth; 21. Swing arm tooth; 22. Helical tooth; 23. Flexible screen; 24. Avoidance groove; 25. Track assembly; 26. Torque assembly.

[0030] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0031] In the description of this invention, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] This invention provides a rotating mechanism for flexible screens, which solves the problems of complex assembly structures, easy interference leading to creases, large number of parts, high assembly difficulty, and uncontrollable precision in existing mobile terminals.

[0034] like Figure 1 , Figure 2 , Figure 8 as well as Figure 9 As shown, the present invention provides a rotating mechanism for a flexible screen, which can be used in mobile terminals, such as mobile phones, tablet computers, or displays. Specifically, the rotating mechanism includes a middle plate 2 and a flexible screen 23. Track components 25 are respectively provided at both ends of the same side of the middle plate 2. Further, the flexible screen 23 is disposed on the side of the middle plate 2, and both ends of the flexible screen 23 are movably connected to the track components 25, thereby rotating together with the rotating parts of the track components 25. Further, the track components 25 can drive the flexible screen 23 to bend to a preset angle, and achieve suspension when bent to the preset angle. Further, a screen-accommodating space is formed between the flexible screen 23 and the middle plate 2. Specifically, the screen-accommodating space can accommodate the bent portion of the flexible screen 23 when it bends, and maintains a gap between the bent portion and the reference surface A of the middle plate 2. This effectively forms an avoidance space, preventing the flexible screen from interfering with the middle plate or track components during folding, thus avoiding creases and shortening its lifespan.

[0035] Preferably, in combination with the above schemes, such as Figures 3 to 5 , Figure 7As shown, the trajectory assembly 25 includes a fixed base 13, a trajectory swing arm, and a middle frame fixing block; wherein, the fixed base 13 is fixedly disposed on the side of the middle plate 2; further, the trajectory swing arm includes a first trajectory swing arm 12 and a second trajectory swing arm 14, which are symmetrically disposed on both sides of the fixed base 13; specifically, the first trajectory swing arm 12 is rotatably disposed on one side of the fixed base 13 and connected to one side of the flexible screen 23, thereby driving the flexible screen 23 to bend; correspondingly, the second trajectory swing arm 14 is rotatably disposed on the other side of the fixed base 13 and connected to the other side of the flexible screen 23, thereby driving the flexible screen 23 to bend; by adopting the above-mentioned trajectory assembly 25 structural design, by designing two symmetrical trajectory swing arms, which are respectively connected to the flexible screen 23, the flexible screen 23 can be driven to bend; it should be noted that: the connection position between the flexible screen 23 and the trajectory swing arm can be adjusted to form an avoidance space, thereby avoiding interference between the flexible screen and the middle plate or trajectory assembly during the folding process; as Figure 10 As shown, as a reference for the prior art, an avoidance groove 24 needs to be opened on the middle plate 2. The solution of this application does not need to consider the avoidance groove 24. Only the middle frame fixing block of the trajectory component 25 needs to be designed to reduce the assembly difficulty. Specifically, the avoidance space can prevent the flexible screen 23 from being squeezed in the bending state, reduce the bending and extend the life of the flexible screen. The fixed base 13 can be regarded as the reference base. The movement of all components is based on the fixed base 13. The trajectory swing arm is connected to the middle frame fixing block. The middle frame fixing block is the active component and drives the trajectory swing arm to move.

[0036] Preferably, in combination with the above schemes, such as Figure 4 , Figure 7 as well as Figure 8As shown, the trajectory component 25 also includes a first mid-frame fixing block 11 and a second mid-frame fixing block 15; wherein, one end of the first mid-frame fixing block 11 is connected to the first trajectory swing arm 12, and the other end of the first mid-frame fixing block 11 is connected to one side of the flexible screen 23, thereby enabling the first trajectory swing arm 12 to rotate, that is, when operating the screen of the mobile terminal, the first mid-frame fixing block 11 can drive the first trajectory swing arm 12 to rotate; correspondingly, one end of the second mid-frame fixing block 15 is connected to the second trajectory swing arm 14, and the other end of the second mid-frame fixing block 15 is connected to the other side of the flexible screen 23, thereby enabling the second trajectory swing arm 14 to rotate, that is, when operating the screen of the mobile terminal, the second mid-frame fixing block 15 can drive the second trajectory swing arm 14 to rotate; the above method In this embodiment, the first trajectory swing arm 12 is connected to the first middle frame fixing block 11, and the second trajectory swing arm 14 is connected to the second middle frame fixing block 15. The first middle frame fixing block 11 and the second middle frame fixing block 15 act as active components, driving the first trajectory swing arm 12 and the second trajectory swing arm 14 to move. Specifically, the first middle frame fixing block 11 and the second middle frame fixing block 15 are active components, which rotate under force, driving the driven components, the first trajectory swing arm 12 and the second trajectory swing arm 14, to perform rotational motion. At the same time, they drive the first synchronous swing arm 10 and the second synchronous swing arm 16 to perform rotational motion and relative displacement. The solution in this embodiment is to raise the rotation center of the first trajectory swing arm 12 and the second trajectory swing arm 14 so that the flexible screen 23 is higher than the reference plane A when it is bent, thereby reducing the downward displacement during bending and simultaneously improving the ball drop quality test of the flexible screen.

[0037] Preferably, in combination with the above schemes, such as Figure 3 As shown, torque components 26 are respectively provided at both ends of the same side of the middle plate 2, and the torque components 26 are respectively connected to the track component 25 to achieve linkage; specifically, when the track component 25 drives the flexible screen 23 to bend to a preset angle range, it can simultaneously drive the torque component 26 to clamp and generate friction, so that the flexible screen 23 is suspended at the preset angle.

[0038] Preferably, in combination with the above schemes, such as Figures 5 to 7As shown, the torque assembly 26 includes a synchronous swing arm, a cam block 4, an elastic linkage, and a friction plate 8. Specifically, one side of the synchronous swing arm is connected to the trajectory assembly 25, so that it can rotate together with the trajectory assembly 25. The synchronous swing arm is also provided with a swing arm tooth 21, and the swing arm tooth 21 can rotate together with the synchronous swing arm. Further, one end of the cam block 4 is provided with a cam tooth 20, and the cam tooth 20 can move together with the cam block 4. Specifically, the other end of the cam block 4 abuts against one end of the elastic linkage, and the friction plate 8 is disposed at the other end of the elastic linkage. The cam tooth 20 and the swing arm tooth 21 are meshed together by a helical tooth 22. This design allows the synchronous swing arm to drive the cam tooth 20 to move through the helical tooth 22 during rotation, and causes the cam block 4 to press the elastic linkage and the friction plate 8 together, thereby generating friction and generating a torque feel, so that the flexible screen 23 can be suspended when bent to a preset angle, improving the user experience of the mobile terminal.

[0039] Preferably, in combination with the above schemes, such as Figures 5 to 7 As shown, the elastic linkage includes a first baffle 6, a second baffle 7, a compression spring 17, and a connecting shaft 18; one end of the connecting shaft 18 is connected to the rocker arm gear 21, so that it can rotate together with the rocker arm gear 21; the other end of the connecting shaft 18 is connected to the friction plate 8, so that it can drive the friction plate 8 to rotate synchronously; furthermore, the cam gear 20, the compression spring 17, and the first baffle 6 are respectively sleeved on the connecting shaft 18, and the compression spring 17 is clamped between the cam gear 20 and the first baffle 6; the friction plate 8 is disposed between the first baffle 6 and the second baffle 7. Specifically, when the synchronous swing arm rotates, it can simultaneously drive the swing arm gear 21 to rotate, thereby causing the helical gear 22 on the swing arm gear 21 to drive the cam gear 20 to move. The cam gear 20 compresses the compression spring 17, causing the first stop plate 6 to squeeze the friction plate 8 and the second stop plate 7 together, thereby increasing the friction force. The hovering control of the flexible screen 23 is achieved by the friction plate 8 being squeezed by the compression spring 17 and generating two sets of friction plates 8 with the first stop plate 6 and the second stop plate 7. With the cooperation structure of the cam gear and the swing arm gear, the synchronous swing arm can be hovered within a certain angle range.

[0040] Preferably, in combination with the above schemes, such as Figures 4 to 5 , Figure 7As shown, the synchronous swing arm includes a first synchronous swing arm 10 and a second synchronous swing arm 16, and the first synchronous swing arm 10 and the second synchronous swing arm 16 are symmetrically arranged on both sides of the intermediate plate; further, the compression spring 17 includes a first compression spring and a second compression spring; further, the connecting shaft 18 includes a first connecting shaft and a second connecting shaft, and the first connecting shaft and the second connecting shaft are arranged side by side; further, the friction plate 8 includes a first friction plate and a second friction plate, and the cam block 4 is provided with a first cam tooth and a second cam tooth, and the first cam tooth and the second cam tooth are symmetrically arranged; specifically, the first One side of the synchronous swing arm 10 is connected to the first middle frame fixing block 11 of the track assembly 25 and can rotate together with the first middle frame fixing block 11; one side of the second synchronous swing arm 16 is connected to the second middle frame fixing block 15 of the track assembly 25 and can rotate together with the second middle frame fixing block 15; the swing arm teeth 21 on the first synchronous swing arm 10 and the swing arm teeth 21 on the second synchronous swing arm 16 are connected by a synchronous gear 9, so that they can be linked; specifically, the side of the swing arm teeth 21 is provided with gear teeth 19, and the swing arm teeth 21 on the first synchronous swing arm 10 and the second middle frame fixing block 16 are connected by a synchronous gear 9, so that they can be linked together; Two synchronous gears 9 are designed between the rocker arm teeth 21 on the two synchronous rocker arms 16, and mesh with the gear teeth 19 respectively to achieve linkage; further, one end of the first connecting shaft is connected to the rocker arm teeth 21 of the first synchronous rocker arm 10, and the other end of the first connecting shaft passes through one end of the first baffle 6 and is connected to the first friction plate; correspondingly, one end of the second connecting shaft is connected to the rocker arm teeth 21 of the second synchronous rocker arm 16, and the other end of the second connecting shaft passes through the other end of the first baffle 6 and is connected to the second friction plate; further, the first cam tooth and the first compression spring The first compression spring is respectively sleeved on the first connecting shaft, and the first compression spring is clamped between the first cam tooth and one end of the first baffle 6; the second cam tooth and the second compression spring are respectively sleeved on the second connecting shaft, and the second compression spring is clamped between the second cam tooth and the other end of the first baffle 6; by adopting the above scheme, through the symmetrical design of synchronous swing arm, compression spring, connecting shaft, friction plate and cam tooth, the two compression springs can be stably compressed by the cam tooth when the synchronous swing arm rotates, thereby clamping them with the two friction plates respectively, increasing the friction force, and achieving a better hovering effect of the flexible screen.

[0041] Preferably, in combination with the above schemes, such as Figures 3 to 5 , Figure 7 As shown, the rotating mechanism also includes a first side plate 1 and a second side plate 3; wherein the first side plate 1 and the second side plate 3 are symmetrically arranged on both sides of the side of the middle plate 2 and are rotatably connected to the middle plate 2; further, the two ends of the first side plate 1 are movably connected to the track assembly 25, and the two ends of the second side plate 3 are movably connected to the track assembly 25, so that they can rotate together with the middle frame fixing block of the track assembly 25, that is, when the track assembly 25 rotates, it can simultaneously drive the first side plate 1 and the second side plate 3 to rotate.

[0042] Preferably, in combination with the above schemes, such as Figures 3 to 5 , Figure 7 As shown, the trajectory component 25 and the torque component 26 are disposed on the lower side of the middle plate 2; the flexible screen 23 is disposed on the upper side of the middle plate 2 and is attached to the first side plate 1 and the second side plate 3 respectively; the first side plate 1 and the second side plate 3 can be rotated to be on the same plane as the middle plate 2, thereby placing the flexible screen 23 in a planar state, at which time the flexible screen 23 is in a fully open state.

[0043] By adopting the aforementioned rotating mechanism for flexible screens, the number of parts can be reduced (≤40 parts) while ensuring the movement principle and mechanical requirements of the flexible screens. This reduces assembly difficulty and the weight of the rotating shaft, resulting in a reduction in the cumulative tolerance of flexible screen assembly, enhanced mechanical performance, and effective resistance to quality issues such as drop rollers and lifespan bending.

[0044] Accordingly, in conjunction with the above solutions, the present invention also provides a mobile terminal, particularly a mobile terminal with a foldable screen; the mobile terminal includes a rotating mechanism, wherein the rotating mechanism is the aforementioned rotating mechanism for a flexible screen; specifically, the mobile terminal is preferably a mobile phone or a tablet computer.

[0045] The present invention also provides a mobile terminal that can reduce the number of parts, reduce assembly difficulty, improve reliability, avoid the hinge squeezing the flexible screen, which would cause obvious folding of the flexible screen, and effectively extend the life of the flexible screen.

[0046] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0047] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0048] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0049] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0050] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A rotation mechanism of a flexible screen, characterized in that, The rotating mechanism includes an intermediate plate (2) and a flexible screen (23); The intermediate plate (2) has track components (25) at both ends of the same side; The flexible screen (23) is disposed on the side of the intermediate plate (2); both ends of the flexible screen (23) are movably connected to the trajectory component (25); the trajectory component (25) can drive the flexible screen (23) to bend to a preset angle, wherein the trajectory component (25) includes a fixed base (13) and a trajectory swing arm, the fixed base (13) is fixedly disposed on the side of the intermediate plate (2); the trajectory swing arm includes a first trajectory swing arm (12) and a second trajectory swing arm (14); the first trajectory swing arm (12) is rotatably disposed on one side of the fixed base (13) and connected to one side of the flexible screen (23), thereby driving the flexible screen (23) to bend; the second trajectory swing arm (14) is rotatably disposed on the other side of the fixed base (13) and connected to the other side of the flexible screen (23), thereby driving the flexible screen (23) to bend; A screen-accommodating space is formed between the flexible screen (23) and the intermediate plate (2); the screen-accommodating space is able to accommodate the bent portion of the flexible screen (23) when the flexible screen (23) is bent, and to create a gap between the bent portion and the reference surface (A) of the intermediate plate (2).

2. The flexible screen rotating mechanism according to claim 1, wherein, The trajectory component (25) also includes a middle frame fixing block.

3. The flexible screen rotating mechanism according to claim 2, wherein, The trajectory component (25) further includes a first middle frame fixing block (11) and a second middle frame fixing block (15); One end of the first middle frame fixing block (11) is connected to the first track swing arm (12), and the other end of the first middle frame fixing block (11) is connected to one side of the flexible screen (23), thereby enabling the first track swing arm (12) to rotate. One end of the second middle frame fixing block (15) is connected to the second trajectory swing arm (14), and the other end of the second middle frame fixing block (15) is connected to the other side of the flexible screen (23), thereby enabling the second trajectory swing arm (14) to rotate.

4. The flexible screen rotating mechanism according to claim 1, wherein, Torque components (26) are provided at both ends of the same side of the middle plate (2); the torque components (26) are connected to the trajectory components (25) in a transmission manner; when the trajectory components (25) drive the flexible screen (23) to bend to a preset angle range, the torque components (26) can simultaneously drive the trajectory components (25) to clamp and generate friction, thereby suspending the flexible screen (23) at the preset angle.

5. The flexible screen rotating mechanism according to claim 4, wherein, The torque assembly (26) includes a synchronous swing arm, a cam block (4), an elastic linkage component, and a friction plate (8). One side of the synchronous swing arm is connected to the trajectory component (25), so that it can rotate together with the trajectory component (25); the synchronous swing arm is also provided with a swing arm tooth (21), which can rotate together with the synchronous swing arm; one end of the cam block (4) is provided with a cam tooth (20), which can move together with the cam block (4); the other end of the cam block (4) abuts against one end of the elastic linkage, and the friction plate (8) is provided at the other end of the elastic linkage; the cam tooth (20) and the swing arm tooth (21) are meshed together by a helical tooth (22); during the rotation of the synchronous swing arm, the cam tooth (20) can be driven to move by the helical tooth (22), and the cam block (4) can press the elastic linkage and the friction plate (8) together to generate friction.

6. The flexible screen rotating mechanism according to claim 5, wherein, The elastic linkage includes a first baffle (6), a second baffle (7), a compression spring (17), and a connecting shaft (18). One end of the connecting shaft (18) is connected to the rocker arm tooth (21), so that it can rotate together with the rocker arm tooth (21); the other end of the connecting shaft (18) is connected to the friction plate (8), so that it can drive the friction plate (8) to rotate synchronously. The cam tooth (20), the compression spring (17), and the first baffle (6) are respectively sleeved on the connecting shaft (18), and the compression spring (17) is clamped between the cam tooth (20) and the first baffle (6); the friction plate (8) is disposed between the first baffle (6) and the second baffle (7); the cam tooth (20) can increase the friction force by compressing the compression spring (17) so that the first baffle (6) squeezes the friction plate (8) and the second baffle (7) together.

7. The flexible screen rotating mechanism according to claim 6, wherein, The synchronous swing arm includes a first synchronous swing arm (10) and a second synchronous swing arm (16), the compression spring (17) includes a first compression spring and a second compression spring, the connecting shaft (18) includes a first connecting shaft and a second connecting shaft, the friction plate (8) includes a first friction plate and a second friction plate, and the cam block (4) is provided with a first cam tooth and a second cam tooth. One side of the first synchronous swing arm (10) is connected to the first middle frame fixing block (11) of the trajectory assembly (25) and can rotate together with the first middle frame fixing block (11); one side of the second synchronous swing arm (16) is connected to the second middle frame fixing block (15) of the trajectory assembly (25) and can rotate together with the second middle frame fixing block (15); the swing arm teeth (21) on the first synchronous swing arm (10) and the swing arm teeth (21) on the second synchronous swing arm (16) are connected by a synchronous gear (9) and can be linked together; One end of the first connecting shaft is connected to the swing arm tooth (21) of the first synchronous swing arm (10), and the other end of the first connecting shaft passes through one end of the first baffle (6) and is connected to the first friction plate; One end of the second connecting shaft is connected to the swing arm tooth (21) of the second synchronous swing arm (16), and the other end of the second connecting shaft passes through the other end of the first baffle (6) and is connected to the second friction plate; The first cam tooth and the first compression spring are respectively sleeved on the first connecting shaft, and the first compression spring is clamped between the first cam tooth and one end of the first baffle (6); The second cam tooth and the second compression spring are respectively sleeved on the second connecting shaft, and the second compression spring is clamped between the second cam tooth and the other end of the first baffle (6).

8. The flexible screen rotating mechanism according to claim 4, wherein, The rotating mechanism also includes a first side plate (1) and a second side plate (3); The first side plate (1) and the second side plate (3) are respectively symmetrically arranged on both sides of the side of the middle plate (2) and are rotatably connected to the middle plate (2); Both ends of the first side plate (1) are also movably connected to the trajectory component (25), and both ends of the second side plate (3) are also movably connected to the trajectory component (25); When the trajectory component (25) rotates, it can simultaneously drive the first side plate (1) and the second side plate (3) to rotate.

9. The flexible screen rotating mechanism according to claim 8, wherein, The trajectory component (25) and the torque component (26) are disposed on the lower side of the intermediate plate (2); the flexible screen (23) is disposed on the upper side of the intermediate plate (2) and is attached to the first side plate (1) and the second side plate (3) respectively.

10. A mobile terminal comprising a rotating mechanism, characterized in that The rotating mechanism is the rotating mechanism of the flexible screen as described in any one of claims 1 to 9.

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