Rotating shaft structure and terminal device

Abstract

Disclosed in the embodiments of the present application are a rotating shaft structure and a terminal device. The rotating shaft structure comprises a fixing support and rotating mechanisms, wherein a torsion arm of any rotating mechanism comprises a fixed part and a movable part, which are slidably connected; and the width of the torsion arm is adjusted by using relative sliding between the movable part and the fixed part. The width of the torsion arm is adjusted to the minimum when the rotating shaft structure is unfolded, such that the rotating shaft structure occupies less space of the whole unit, thus having low impact on the space of the whole unit.

Description

Shaft structure, terminal equipment Technical Field

[0001] The present application relates to the field of foldable display technology, and in particular to a hinge structure and a terminal device. Background Art

[0002] Currently, most foldable display devices use a hinge structure to achieve the folding function. The hinge structure is mainly divided into two types: teardrop-shaped and wedge-shaped. To achieve the teardrop-shaped hinge structure, both a movable plate and a fixed plate are required. One of the movable plate or the fixed plate needs to adopt a fixed axis plus slider structure to limit the degree of freedom. In the existing technology, the torque arm as a whole serves as a sliding connection between the slider and the fixed plate. When the hinge structure is closed, the torque arm needs to be wider to maintain the sliding connection with the fixed plate. When the hinge structure is unfolded, the torque arm occupies more space in the entire machine due to the large width, thereby affecting the space of the entire machine.

[0003] Therefore, the existing shaft structure has a technical problem that its width affects the space of the entire machine. SUMMARY OF THE INVENTION

[0004] The embodiments of the present application provide a hinge structure and a terminal device, which can alleviate the technical problem of the existing hinge structure having a large width that affects the space of the entire device.

[0005] An embodiment of the present application provides a rotating shaft structure, comprising a fixed bracket and two rotating mechanisms rotatably connected to the fixed bracket, wherein the two rotating mechanisms are symmetrically arranged about a symmetry center line, and each of the rotating mechanisms comprises:

[0006] A rotating bracket, the rotating bracket comprising a fixed plate and a movable plate, the movable plate being rotatably connected to the fixed bracket, and the fixed plate being rotatably connected to the movable plate;

[0007] A torque arm, the torque arm comprising a fixed portion and a movable portion, the fixed portion being provided with a groove, the inner surface of the groove being provided with a slide rail, the movable portion being slidably connected to the fixed plate, and the movable portion being slidably connected to the fixed portion via the slide rail;

[0008] The width of the torque arm is adjusted by relative sliding between the movable part and the fixed part. When the rotating shaft structure is unfolded, the width of the torque arm in the direction perpendicular to the center line of symmetry is the smallest, and the vertical distance between the farthest end of the movable part away from the fixed bracket and the center line of symmetry is the smallest. When the rotating shaft structure is closed, the width of the torque arm is the largest, and the vertical distance between the farthest end of the movable part away from the fixed bracket and the center line of symmetry is the largest. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0010] FIG1 is a first expanded schematic diagram of the rotating shaft structure provided by the present application;

[0011] FIG2 is a first closed schematic diagram of the rotating shaft structure provided by the present application;

[0012] FIG3 is a schematic diagram of the overlapping width a of the rotating shaft structure provided by the present application when closed;

[0013] FIG4 is a schematic diagram of the disassembly of some parts of the rotating shaft structure provided in FIG1 and FIG2 of the present application;

[0014] FIG5 is a second expanded schematic diagram of the rotating shaft structure provided by the present application;

[0015] FIG6 is a second closed schematic diagram of the rotating shaft structure provided by the present application;

[0016] FIG7 is a detailed schematic diagram of some parts of the shaft structure provided by the present application;

[0017] FIG8 is a schematic diagram of the disassembly of some parts of the rotating shaft structure provided in FIG5 and FIG6 of the present application.

[0018] Description of reference numerals:

[0019] Modes for Carrying Out the Invention

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0021] Please refer to Figures 1, 2, 5, 6, and 8. The shaft structure provided in the present application includes a fixed bracket 1, two rotating mechanisms 2 rotatably connected to the fixed bracket 1, and the two rotating mechanisms 2 are symmetrically arranged about a symmetry center line 3. Any of the rotating mechanisms 2 includes a rotating bracket 4 and a torque arm 5. The rotating bracket 4 includes a fixed plate 6 and a movable plate 7. The movable plate 7 is rotatably connected to the fixed bracket 1, and the fixed plate 6 is rotatably connected to the movable plate 7. The torque arm 5 includes a fixed portion 8 and a movable portion 9. The fixed portion 8 is provided with a groove 17. The groove 1 7 is provided with a slide rail on the inner surface, and the movable part 9 is slidably connected to the fixed plate 6, and the movable part 9 is slidably connected to the fixed part 8 through the slide rail, wherein the width of the torque arm 5 is adjusted by relative sliding between the movable part 9 and the fixed part 8. When the rotating shaft structure is unfolded, the width of the torque arm 5 is the smallest, and the vertical distance between the farthest end of the movable part 9 and the symmetry center line 3 is the smallest. When the rotating shaft structure is closed, the width of the torque arm 5 is the largest, and the vertical distance between the farthest end of the movable part 9 and the symmetry center line 3 is the largest.

[0022] The torque arm 5 further includes a cam 16 , one end of the fixed portion 8 is slidably connected to the movable portion 9 , and the other end of the fixed portion 8 is fixedly connected to the cam 16 .

[0023] The fixed plate 6 can be connected to the movable plate 7 via pins.

[0024] It can be understood that the cam is a part of the torque arm, the torque arm is a part of the rotating mechanism, and the rotating mechanism is connected to the fixed bracket in rotation through the cam.

[0025] It should be noted that the space occupied by the hinge structure of the present application refers to the space occupied by the hinge structure in the unfolded state.

[0026] In this embodiment, the torque arm 5 is divided into a fixed part 8 and a movable part 9 which are slidably connected to each other. The width of the torque arm 5 is adjusted by relative sliding between the movable part 9 and the fixed part 8, so that when the shaft structure is closed, the width of the torque arm 5 is adjusted to the maximum, thereby meeting the requirement for the torque arm width when the shaft structure is closed, and when the shaft structure is unfolded, the width of the torque arm 5 can be adjusted to the minimum. At this time, the width of the shaft structure itself in the unfolded state is smaller, so the shaft structure occupies less space in the entire machine in the unfolded state, and has little impact on the space of the entire machine, thereby alleviating the technical problem that the existing shaft structure has a large width that affects the space of the entire machine.

[0027] The technical solution of this application is now described in conjunction with specific embodiments.

[0028] It should be noted that the length direction of the above-mentioned torque arm 5 refers to the axial direction of the rotating shaft in the rotating shaft structure, and the width direction of the torque arm 5 is perpendicular to the length direction. Furthermore, in the width direction, the width of the rotating shaft structure refers to the vertical distance between the farthest end of the fixed plate 6 and the rotating shaft structure. Furthermore, the present application adjusts the width of the rotating shaft structure by adjusting the width of the torque arm 5, thereby making the rotating shaft structure occupy less space of the entire machine when unfolded, thereby reducing the impact on the space of the entire machine and increasing the space of the entire machine.

[0029] In one embodiment, referring to FIG. 3 , when the rotating shaft structure is closed, the overlapping width a of the slide rail and the movable portion 9 in the width direction of the torque arm 5 is greater than 0.5 mm.

[0030] It is understandable that, in order to ensure the stability of the shaft structure, it is necessary to ensure that the overlapping width a of the movable part 9 and the slide rail is greater than 0.5 mm, wherein the direction of the overlapping width is the same as the setting direction of the slide rail.

[0031] In this embodiment, when the rotating shaft structure is closed, the overlapping width a of the movable portion 9 and the slide rail is greater than 0.5 mm, thereby improving the stability of the rotating shaft structure.

[0032] In one embodiment, referring to Figures 1, 2, and 4, the groove 17 is provided on a side surface of the fixed part 8 facing the movable part 9, the groove 17 opens toward the movable part 9, a slide rail is provided in the groove 17, and the movable part 9 is slidably connected to the fixed part 8 via the slide rail.

[0033] The opening of the groove 17 faces the movable part 9 , and one end of the movable part 9 is located in the groove 17 and is slidably connected to the slide rail in the groove 17 .

[0034] The movable part 9 is an integrated structure.

[0035] It can be understood that the opening direction of the groove 17 is the same as the width direction of the torque arm 5, and the movable part 9 slides along the slide rail in the width direction of the torque arm 5, thereby adjusting the width of the torque arm 5; wherein, the width direction of the torque arm refers to: the extension direction of the torque arm perpendicular to the symmetry center line 3.

[0036] It can be understood that, in the process of the rotating shaft structure from closing to expanding, the movable part 9 slides along the slide rail in the direction close to the symmetry center line 3, thereby reducing the width of the torque arm 5; in the process of the rotating shaft structure from expanding to closing, the movable part 9 slides along the slide rail in the direction away from the symmetry center line 3, thereby increasing the width of the torque arm 5.

[0037] In this embodiment, the groove 17 is arranged on the side of the fixed part 8 facing the movable part 9, and one end of the movable part 9 slides in the groove 17 along the width direction of the torque arm 5 through the slide rail, thereby adjusting the width of the torque arm 5, thereby reducing the occupancy and impact on the space of the entire machine.

[0038] In one embodiment, referring to Figures 1 and 4, the rotating mechanism 2 further includes a first baffle 10, which is fixedly connected to the fixed plate 6. The first baffle 10 is arranged on a side of the movable part 9 away from the fixed part 8, and the shielding surface of the first baffle 10 faces the movable part 9.

[0039] The first baffle 10 may be provided on the entire surface, or the first baffles 10 may be provided at intervals, and a plurality of the first baffles 10 may jointly prevent the movable portion 9 from separating.

[0040] The first baffle 10 can be integrally formed with the fixed plate 6 .

[0041] The first baffle 10 may also be fixedly connected to the fixed plate 6 by spot welding.

[0042] It can be understood that the first baffle 10 is used to prevent the movable part 9 from separating from the fixed plate 6 or the fixed part 8. When the rotating shaft structure is unfolded, the shielding surface of the first baffle 10 abuts against the end of the movable part 9, thereby also having the effect of limiting the sliding of the movable part 9.

[0043] In this embodiment, a first baffle 10 is provided in the rotating mechanism 2 to limit or block the movable part 9, thereby preventing the movable part 9 from separating from the fixed plate 6 or the fixed part 8.

[0044] In one embodiment, referring to Figures 2 and 4, the fixed plate 6 includes a first limiting boss 12. When the first limiting boss 12 contacts the end of the movable part 9 away from the fixed bracket 1, the movable part 9 stops sliding with the fixed plate 6.

[0045] It can be understood that, when the rotating shaft structure is expanded to closed, the movable part slides in the direction away from the symmetry center line 3, that is, the overlap between the movable part and the slide rail is reduced, and the width of the torque arm is increased; when the rotating shaft structure is expanded to closed, the movable part slides in the direction close to the symmetry center line 3, that is, the overlap between the movable part and the slide rail is increased, and the width of the torque arm is reduced.

[0046] It should be noted that the sliding of the movable part and the fixed plate means that a slide rail is provided in the groove of the fixed plate, and the movable part is provided in the slide rail and can slide relative to the fixed plate along the slide rail.

[0047] In one embodiment, referring to Figures 5, 6, and 8, the groove 17 is provided on both side surfaces of the fixed part 8 along the length direction of the torque arm 5, and a slide rail is provided in the groove 17. The fixed part 8 also includes a through hole 18 extending along the length direction. The movable part 9 includes a first part 91, a second part 92, and a connecting part 93. The first part 91 is slidably connected to the slide rail on one side surface of the fixed part 8, and the second part 92 is slidably connected to the slide rail on the other side surface of the fixed part 8. The connecting part 93 passes through the through hole 18, and the two ends of the connecting part 93 are respectively connected to the first part 91 and the second part 92, and the movable part 9 is slidably connected to the fixed part 8 along the slide rail.

[0048] It can be understood that the fixed bracket includes at least a fixed axis, and the rotating bracket rotates around the fixed axis. The length direction of the torque arm indicated in this application is: the axial direction of the fixed axis in the fixed bracket, that is, the extension direction of the central symmetry line 3.

[0049] In one embodiment, referring to FIG. 7 , the connecting portion 93 is a pin, and the first portion 91 and the second portion 92 are symmetrically arranged.

[0050] In one embodiment, referring to FIG. 7 , the fixed plate 6 includes a second baffle 11 , which is integrated with the fixed plate 6 , and is disposed on a side of the movable portion 9 away from the fixed portion 8 .

[0051] It can be understood that in the process of the rotating shaft structure from closing to expanding, the movable part 9 slides in the direction close to the symmetry center line 3, reducing the width of the torque arm 5. When the rotating shaft structure is expanded, the second baffle 11 is used to prevent the movable part 9 from sliding on the slide rail.

[0052] In this embodiment, the second baffle 11 not only prevents the movable component from separating from the fixed component and the fixed plate 6, but also works together with the first limiting end 14 to ensure that the connecting component cannot slide in the slide rail when the rotating shaft structure is unfolded.

[0053] In one embodiment, referring to Figure 8, a sliding groove is provided in the through hole 18 of the fixed part 8, and the connecting component slides along the sliding groove. The sliding groove includes a first limiting end 14 close to the side of the fixed bracket 1. When the rotating shaft structure is unfolded, the connecting part 93 abuts against the first limiting end 14, and the movable part 9 stops sliding with the fixed part 8.

[0054] It can be understood that when the rotating shaft structure is unfolded, the connecting part 93 slides to the first limit end 14 and abuts against the first limit end 14, the first limit end 14 and the second baffle 11 jointly limit the movable part 9, and the movable part 9 stops moving along the slide rail, so that the width of the torque arm 5 remains at the minimum value.

[0055] In one embodiment, a sliding groove is provided in the through hole 18 of the fixed part 8, and the connecting component slides along the sliding groove. The sliding groove includes a second limiting end 15 away from the side of the fixed bracket 1. When the rotating shaft structure is closed, the connecting part 93 abuts against the second limiting end 15, and the movable part 9 stops sliding between the fixed part 8.

[0056] It can be understood, referring to Figure 8, that when the connecting component slides toward the side away from the fixed bracket 1, the width of the torque arm 5 increases. When the connecting component contacts the second limiting end 15, the width of the torque arm 5 is the largest, and the rotating shaft structure is in a closed state.

[0057] In this embodiment, the second limiting end 15 ensures that the torque arm 5 satisfies a sufficient overlap while making the position of the connecting component controllable, thereby limiting the maximum value in the width adjustment range of the torque arm 5 .

[0058] In one embodiment, referring to FIG. 6 and FIG. 8 , the fixed plate 6 is further provided with a second limiting boss 13 .

[0059] When the second limiting boss 13 contacts the movable portion 9 , the movable portion 9 and the fixed plate 6 stop sliding.

[0060] It can be understood that when the rotating shaft structure is closed, the connecting component contacts the second limiting end 15. At this time, the width of the torque arm 5 is the largest, and the second limiting boss 13 limits the movable part 9 so that the movable part 9 does not slide along the slide rail.

[0061] In this embodiment, when the rotating shaft structure is closed, the second limiting end 15 and the second limiting boss 13 jointly limit the movable part 9, so that the movable part 9 stops moving along the slide rail, so that the width of the torque arm 5 remains at the maximum value.

[0062] The main idea of ​​the present application is to divide the torque arm 5 into a fixed part 8 and a movable part 9, and utilize the sliding between the fixed part 8 and the movable part 9 to enable the torque arm 5 to be adjusted in the width direction. By designing a torque arm 5 with adjustable width, when the shaft structure is closed, the width of the torque arm 5 is maximized, ensuring the width requirement of the torque arm 5. When the shaft structure is unfolded, the width of the torque arm 5 is minimized, thereby reducing the space occupied by the shaft structure, avoiding affecting the space of the entire machine, and improving the space of the entire machine.

[0063] Optionally, in some embodiments of the present application, when the rotating shaft structure is closed, the overlapping width of the sliding rail and the movable part in the width direction of the torque arm is greater than 0.5 mm.

[0064] Optionally, in some embodiments of the present application, the groove of the fixed part is provided on a side surface of the fixed part facing the movable part, and the groove opens toward the movable part.

[0065] Optionally, in some embodiments of the present application, the rotating mechanism further includes a first baffle, which is fixedly connected to the fixed plate, and the first baffle is arranged on a side of the movable part away from the fixed part.

[0066] Optionally, in some embodiments of the present application, the fixed plate includes a first limiting boss, and when the first limiting boss contacts the end of the movable part away from the fixed bracket, the movable part stops sliding with the fixed plate.

[0067] Optionally, in some embodiments of the present application, the groove of the fixed part is arranged on both side surfaces of the fixed part along the length direction of the torque arm, and the fixed part also includes a through hole arranged along the length direction, and the movable part includes a first part, a second part, and a connecting part, the first part is slidably connected to the slide rail on one side surface of the fixed part, the second part is slidably connected to the slide rail on the other side surface of the fixed part, the connecting part passes through the through hole, and the two ends of the connecting part are respectively connected to the first part and the second part.

[0068] Optionally, in some embodiments of the present application, the connecting part is a pin, and the first part and the second part are symmetrically arranged.

[0069] Optionally, in some embodiments of the present application, the fixed plate includes a second baffle, which is integrated with the fixed plate and is arranged on a side of the movable part away from the fixed part.

[0070] Optionally, in some embodiments of the present application, a sliding groove is provided in the through hole of the fixed part, and the connecting part slides along the sliding groove. The sliding groove includes a second limiting end away from the side of the fixed bracket. When the rotating shaft structure is closed, the connecting part abuts against the second limiting end, and the movable part stops sliding with the fixed part.

[0071] Beneficial effect: The torque arm is divided into a fixed part and a movable part which are slidably connected to each other. The width of the torque arm is adjusted by relative sliding between the movable part and the fixed part, so that when the rotating shaft structure is closed, the width of the torque arm is adjusted to the maximum, thereby meeting the requirements when the rotating shaft structure is closed, and when the rotating shaft structure is unfolded, the width of the torque arm is adjusted to the minimum. At this time, the rotating shaft structure occupies less space of the entire machine and has little impact on the space of the entire machine, thereby alleviating the technical problem that the existing rotating shaft structure has a large width that affects the space of the entire machine.

[0072] The present application also proposes a display module and a terminal device, wherein the terminal device includes but is not limited to a foldable screen mobile phone. Both the display module and the terminal device include the above-mentioned hinge structure, which will not be described in detail here.

[0073] The rotating shaft structure provided by the embodiment of the present application includes a fixed bracket, two rotating mechanisms rotatably connected to the fixed bracket, the two rotating mechanisms are symmetrically arranged about a symmetrical center line, any of the rotating mechanisms includes a rotating bracket, a torque arm, the rotating bracket includes a fixed plate and a movable plate, the movable plate is rotatably connected to the fixed bracket, the fixed plate is rotatably connected to the movable plate, the torque arm includes a fixed part and a movable part, the fixed part is provided with a groove, the inner surface of the groove is provided with a slide rail, the movable part is slidably connected to the fixed plate, and the movable part is slidably connected to the fixed part through the slide rail, wherein the width of the torque arm is adjusted by relative sliding between the movable part and the fixed part, and when the rotating shaft structure is unfolded, the width of the torque arm is the smallest, and the movable part The vertical distance between the farthest end of the movable part away from the fixed bracket and the symmetry center line is the smallest. When the rotating shaft structure is closed, the width of the torque arm is the largest, and the vertical distance between the farthest end of the movable part away from the fixed bracket and the symmetry center line is the largest. The torque arm is divided into a fixed part and a movable part that are slidably connected to each other, and the width of the torque arm is adjusted by relative sliding between the movable part and the fixed part, so that when the rotating shaft structure is closed, the width of the torque arm is adjusted to the maximum, thereby meeting the requirements when the rotating shaft structure is closed, and when the rotating shaft structure is unfolded, the width of the torque arm is adjusted to the minimum. At this time, the rotating shaft structure occupies less space of the entire machine and has little impact on the space of the entire machine, thereby alleviating the technical problem that the existing rotating shaft structure has a large width that affects the space of the entire machine.

[0074] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0075] The above is a detailed introduction to the shaft structure provided in the embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A rotating shaft structure, comprising a fixed bracket and two rotating mechanisms rotatably connected to the fixed bracket, wherein the two rotating mechanisms are symmetrically arranged about a symmetry center line, and any of the rotating mechanisms comprises: A rotating bracket, the rotating bracket comprising a fixed plate and a movable plate, the movable plate is rotatably connected to the fixed bracket, and the fixed plate is rotatably connected to the movable plate; A torque arm, the torque arm comprising a fixed part and a movable part, the fixed part is provided with a groove, the inner surface of the groove is provided with a slide rail, the movable part is slidably connected to the fixed plate, and the movable part is slidably connected to the fixed part through the slide rail; The width of the torque arm is adjusted by relative sliding between the movable part and the fixed part. When the rotating shaft structure is unfolded, the width of the torque arm in the direction perpendicular to the symmetry center line is the smallest, and the vertical distance between the farthest end of the movable part away from the fixed bracket and the symmetry center line is the smallest. When the rotating shaft structure is closed, the width of the torque arm is the largest, and the vertical distance between the farthest end of the movable part away from the fixed bracket and the symmetry center line is the largest.

2. The rotating shaft structure according to claim 1, wherein: When the rotating shaft structure is closed, the overlapping width of the slide rail and the movable part in the width direction of the torque arm is greater than 0.5 mm.

3. The rotating shaft structure according to claim 2, wherein: The groove of the fixed part is arranged on a side surface of the fixed part facing the movable part, and the opening of the groove faces the movable part.

4. The rotating shaft structure according to claim 3, wherein: A slide rail is arranged in the groove, and the movable part is slidably connected with the fixed part via the slide rail.

5. The rotating shaft structure according to claim 3, wherein: The movable part is an integrated structure.

6. The rotating shaft structure according to claim 3, wherein: The rotating mechanism further comprises a first baffle, the first baffle is fixedly connected to the fixed plate, and the first baffle is arranged on a side of the movable part away from the fixed part.

7. The rotating shaft structure according to claim 6, wherein: The first baffle is disposed on the entire surface.

8. The rotating shaft structure according to claim 6, wherein: The first baffle plate and the fixed plate are integrally formed.

9. The rotating shaft structure according to claim 3, wherein: The fixed plate comprises a first limiting boss. When the first limiting boss contacts the end of the movable part away from the fixing bracket, the movable part stops sliding with the fixed plate.

10. The rotating shaft structure according to claim 9, wherein: In the process of the shaft structure moving from expansion to closure, the movable part slides in a direction away from the symmetry center line, the overlap between the movable part and the slide rail decreases, and the width of the torque arm increases.

11. The rotating shaft structure according to claim 9, wherein: When the rotating shaft structure is in the process of being closed and expanded, the movable part slides in the direction close to the symmetry center line, the overlap between the movable part and the slide rail increases, and the width of the torque arm decreases.

12. The rotating shaft structure according to claim 2, wherein: The groove of the fixed part is arranged on both side surfaces of the fixed part along the length direction of the torque arm, and the fixed part also includes a through hole that is arranged along the length direction, and the movable part includes a first part, a second part, and a connecting part, wherein the first part is slidably connected to the slide rail on one side surface of the fixed part, and the second part is slidably connected to the slide rail on the other side surface of the fixed part, and the connecting part passes through the through hole, and the two ends of the connecting part are respectively connected to the first part and the second part.

13. The rotating shaft structure according to claim 12, wherein: The connecting part is a pin, and the first part and the second part are symmetrically arranged.

14. The rotating shaft structure according to claim 12, wherein: The fixed plate includes a second baffle plate, the second baffle plate is integrally arranged with the fixed plate, and the second baffle plate is arranged on a side of the movable part away from the fixed part.

15. The rotating shaft structure according to claim 14, wherein: During the process of the shaft structure moving from closing to unfolding, the movable part slides in a direction close to the symmetry centerline, and the width of the torque arm decreases. When the shaft structure is unfolded, the second baffle is used to prevent the movable part from sliding on the slide rail.

16. The rotating shaft structure according to claim 12, wherein: A slide groove is provided in the through hole of the fixed part, and the connecting part slides along the slide groove. The slide groove includes a second limiting end away from the side of the fixed bracket. When the rotating shaft structure is closed, the connecting part abuts against the second limiting end, and the movable part stops sliding with the fixed part.

17. The rotating shaft structure according to claim 9, wherein: The fixed plate is further provided with a second limiting boss, and when the second limiting boss contacts the movable part, the movable part and the fixed plate stop sliding.

18. The rotating shaft structure according to claim 1, wherein: The fixed plate is connected to the movable plate through a pin.

19. The rotating shaft structure according to claim 1, wherein: The torque arm also includes a cam, one end of the fixed part is slidably connected to the movable part, and the other end of the fixed part is fixedly connected to the cam.

20. A terminal device, comprising the hinge structure according to claim 1 and a display module, wherein the display module is arranged on a side surface of the hinge structure.

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