Multifunctional rotating shaft structure

Abstract

The utility model relates to the technical field of rotating shaft mechanisms, in particular to a multifunctional rotating shaft structure which comprises a rotating shaft, a torsion mechanism and a damping mechanism, and the torsion mechanism comprises a first elastic assembly, a first driving sleeve and a first cam sleeve; the damping mechanism comprises a second elastic assembly, a second driving sleeve and a second cam sleeve, the first cam sleeve and the second cam sleeve are rotationally connected with the rotating shaft and keep synchronous rotation, and a concave-convex matching mechanism is arranged between the first driving sleeve and the first cam sleeve or between the second driving sleeve and the second cam sleeve; the free hovering function at any position is achieved, the end point self-locking function and the closing back locking function are achieved after the lock is opened, and the technical effect that the lock can be automatically opened to the end point position without external force is achieved.

Description

Technical Field

[0001] This application relates to the field of rotating shaft mechanisms, and particularly to a multi-functional rotating shaft structure. Background Art

[0002] In the design of modern electronic products, the multi-functional rotating shaft structure is a key component, especially for electronic devices such as folding mobile phones, laptops, and tablets. The multi-functional rotating shaft structure serves as a key component between the device body (such as the keyboard base that houses the core hardware and processing unit in a laptop) and the flipping component (such as the upper cover or screen panel integrated with a high-definition display). With the development of technology, higher requirements have been put forward for the operational convenience and stability of the keyboard.

[0003] Currently, the keyboard rotating shaft components widely used in the market mainly consist of components such as a rotating shaft, a fixing piece, a torsion spring, a connecting piece, and a limiting piece. This design realizes the automatic reset or maintenance of a specific angle of the rotating shaft through the elastic force of the torsion spring, thereby meeting the opening and closing requirements of the keyboard. The existing structure usually includes a single torsion or damping mechanism to control the opening and closing speed and position of the keyboard.

[0004] However, although this structure meets the basic usage requirements to a certain extent, due to the inherent characteristics of the torsion spring structure in the existing rotating shaft structure, it is often difficult to provide a stable self-locking mechanism during the closing and opening processes of the rotating shaft. This results in the need for relatively large force, and even the need for two-handed operation when the user attempts to open the keyboard, and the keyboard part is prone to move together with the rotating shaft, increasing the difficulty and inconvenience of operation. Summary of the Utility Model

[0005] In order to overcome the above technical problems, this application provides a multi-functional rotating shaft structure.

[0006] The multi-functional rotating shaft structure provided by this application adopts the following technical solutions:

[0007] A multi-functional rotating shaft structure, comprising a rotating shaft for fixedly connecting with a first flipping member, a torsion mechanism and a damping mechanism. The torsion mechanism includes a first elastic component, a first driving sleeve and a first cam sleeve; the damping mechanism includes a second elastic component, a second driving sleeve and a second cam sleeve; the first cam sleeve and the second cam sleeve are both sleeved on the rotating shaft, the first cam sleeve and the second cam sleeve are used for fixedly connecting with a second flipping member and are both rotatably connected with the rotating shaft, and the first cam sleeve and the second cam sleeve rotate synchronously; the first driving sleeve and the second driving sleeve are sleeved on the rotating shaft and rotate synchronously with the rotating shaft and can slide along the axial direction of the rotating shaft. An uneven matching mechanism is arranged between the first driving sleeve and the first cam sleeve and / or between the second driving sleeve and the second cam sleeve and can rotate relatively. When the convex positions of the uneven matching mechanism are opposite to each other, it is the closed position of the flipping member. When the concave position and the convex position of the uneven matching mechanism are inserted into each other, it is the open position of the flipping member; the first elastic component is sleeved on the rotating shaft and acts on the first driving sleeve to drive the first driving sleeve to have a tendency to move towards the direction close to the first cam sleeve, and the second elastic component is sleeved on the rotating shaft and acts on the second driving sleeve to drive the second driving sleeve to have a tendency to move towards the direction close to the second cam sleeve.

[0008] By adopting the above technical solutions, through the carefully designed torsion mechanism and damping mechanism, the rotating shaft structure significantly reduces the force required for the user to open or close the flipping component. The user can easily open the flipping component with only one hand, without much effort or the need for both hands to cooperate, greatly improving the convenience of operation; at the same time, the main body part of the device can remain stable during the opening process of the flipping component and no longer move with the flipping component, reducing the operation difficulty; the ingenious application of the first elastic component and the second elastic component enables the flipping component to be automatically driven to the maximum angle (such as the state when a laptop is in normal use) during the opening process without the user continuously applying force; this design not only saves the user's physical strength but also improves the comfort of use. In the closing stage, the tight fit between the first driving sleeve and the first flange realizes the anti-lock function, effectively preventing the keyboard from accidentally opening and enhancing the safety and stability of the product; the uneven matching mechanism in the rotating shaft structure plays a key role in the opening and transition stages. When the keyboard is opened to any angle, the inner side walls of the uneven matching mechanism abut against each other, providing stable support for the keyboard and realizing the free hovering function; the synchronous rotation design of the first cam sleeve and the second cam sleeve ensures the stability and synchronism of the flipping member during the opening and closing processes.

[0009] Optionally, the concave-convex mating mechanism includes a first flange and a first groove. The first flange is disposed on the first cam sleeve, and the first groove is disposed on the first drive sleeve. The shape of the first flange is adapted to the shape of the first groove.

[0010] By adopting the above technical solution, through the close cooperation between the first flange and the first groove, the present rotating shaft structure realizes precise control over the opening and closing process of the flipping member. The user only needs to operate easily to achieve stable opening and closing of the flipping component without complex adjustment or continuous application of force. During the closing stage, the end of the first drive sleeve abuts against the end of the first flange to realize the closing anti-lock function. During the transition stage, the side wall of the first functional slope of the first flange abuts against the inner side wall of the first groove to realize the free hovering function at any position. During the opening stage, the first flange is located within the first groove, and the side wall of the first flange abuts against the inner side wall of the first groove to realize the end point self-locking function.

[0011] Optionally, the first flange includes a first end face, which is a flat surface, a curved surface or an arc surface. A plurality of first functional slopes with different slopes are provided on both sides of the first flange, and the surface of each first functional slope is a flat surface, a curved surface or an arc surface.

[0012] By adopting the above technical solution, a plurality of first functional slopes with different slopes are provided on both sides of the first flange, and the surface of each first functional slope is a flat surface, a curved surface or an arc surface. During the closing stage, the end of the first drive sleeve accurately abuts against the end of the first flange to ensure the effective realization of the closing anti-lock function. During the transition stage, the side wall of the first functional slope abuts against the inner side wall of the first groove to realize the free hovering function at any position. During the opening stage, the first flange is located within the first groove, and the side wall of the first flange abuts against the inner side wall of the first groove to realize the end point self-locking function. The plurality of first functional slopes with different slopes can provide multiple rotation states according to different usage scenarios, realize smooth transition during the opening stage and the transition stage, and automatically open to the end point position when not affected by external forces within the range of the steep slope, thereby providing a better operation experience and stability.

[0013] Optionally, the first functional slopes on one side of the first flange include a first slope section, a second slope section and a third slope section arranged in sequence. Both the first slope section and the third slope section are gentle slopes, and the second slope section is a steep slope. The inclination of the steep slope is greater than that of the gentle slope.

[0014] By adopting the above technical scheme, in the closing stage, the end of the first drive sleeve abuts against the end of the first flange to realize the closed anti-locking function; in the opening stage, the first flange is located in the first groove, and the side wall of the first flange abuts against the inner wall of the first groove to realize stable support; in the transition stage, the side wall of the first functional slope of the first flange abuts against the inner wall of the first groove to realize the free hovering function at any position; the first functional slope on one side of the first flange includes a first slope section, a second slope section and a third slope section arranged in sequence, the first slope section and the third slope section are gentle slopes, and the second slope section is a steep slope, and the inclination of the steep slope is greater than that of the gentle slope, so that within the range of the steep slope, when the flip component is not subjected to external force, it can be automatically opened to the end position, and after opening, it has the end point self-locking and closed anti-locking functions.

[0015] Optionally, the radial angle of the second slope section is θ, and the range of θ is 5-20°.

[0016] By adopting the above technical solution, when the flip component is within the steep slope, by setting the radial angle θ of the second slope section within the range of 5-20°, the flip component can automatically open to the end position when not affected by external force, thereby greatly improving the overall operation smoothness and user experience, and improving the overall operation smoothness.

[0017] Optionally, a first rounded corner is provided at a connection point between two adjacent first functional slopes.

[0018] By adopting the above technical solution, the connection between two adjacent first functional slopes is provided with a first rounded corner, which makes the transition between the first functional slopes smoother during the rotation of the shaft structure, reduces the torque fluctuation caused by the sudden change at the connection of the first functional slopes during the rotation process, thereby improving the operation smoothness and user experience of the keyboard during the opening and closing process.

[0019] Optionally, a first protrusion is provided on the first cam sleeve, and a second protrusion is provided on the second cam sleeve, and the first protrusion and the second protrusion are directly connected via a concave-convex structure or connected via a connecting piece to achieve synchronous rotation; a limiting member is fixedly provided on the rotating shaft, and an arc-shaped limiting groove is provided on the limiting member, and the first protrusion or the second protrusion slides in cooperation with the limiting groove; the limiting member is located between the first cam sleeve and the second cam sleeve, and an end of the first cam sleeve is connected to the side wall of the limiting member, and an end of the second cam sleeve abuts against the side wall of the limiting member.

[0020] By adopting the above technical solution, the first bump on the first cam sleeve is fixedly connected to the second bump on the second cam sleeve and slidably cooperates with the arc-shaped limiting groove of the limiting member on the rotating shaft, realizing the synchronous rotation of the first cam sleeve and the second cam sleeve, and ensuring the stability and reliability of the rotating shaft structure during the closing and opening processes. The fixed connection between the first bump and the second bump enhances the rigidity of the overall structure. The sliding cooperation between the limiting groove of the limiting member and the first bump or the second bump further limits the rotation angle of the cam sleeve, realizing the end self-locking and closing anti-locking functions during the opening and closing processes, and having the free hovering function at any position during the opening process, improving the fluency and comfort of the user experience; the limiting member is located between the first cam sleeve and the second cam sleeve, the end of the first cam sleeve abuts against the side wall of the limiting member, and the end of the second cam sleeve abuts against the side wall of the limiting member, realizing the limitation of the first cam sleeve and the second cam sleeve, improving the rotation stability of the first cam sleeve and the second cam sleeve, and ensuring that the first cam sleeve and the second cam sleeve do not move along the axis direction of the rotating shaft during the rotation around the rotating shaft.

[0021] Optionally, the first elastic component includes a first blocking member and a spring element. The first blocking member is arranged on the rotating shaft, the spring element is sleeved on the rotating shaft, the spring element is located between the first blocking member and the first driving sleeve, one end of the spring element abuts against the first blocking member, and the other end of the spring element abuts against the first driving sleeve.

[0022] By adopting the above technical solution, the spring element is sleeved on the rotating shaft and located between the first blocking member and the first driving sleeve. One end of the spring element abuts against the first blocking member, and the other end abuts against the first driving sleeve, realizing the effective driving of the first driving sleeve towards the direction close to the first cam sleeve, ensuring the stable contact and separation between the first driving sleeve and the first cam sleeve during the closing and opening processes. During the closing stage, the end of the first driving sleeve can abut against the end of the first flange, thereby realizing the closing anti-locking function; during the opening stage, the first flange is located in the first groove and abuts against the inner side wall of the first groove through its side wall, realizing the stable support during the opening process; during the transition stage, the first functional slope side wall of the first flange abuts against the inner side wall of the first groove, realizing the free hovering function at any position. In addition, the design of the spring element ensures that the keyboard can realize the end self-locking function after being opened and automatically open to the end position within the steep slope range.

[0023] Optionally, the second elastic component includes a second blocking member and a disc spring. The second blocking member is disposed on the rotating shaft, the disc spring is sleeved on the rotating shaft, the disc spring is located between the second blocking member and the second driving sleeve, one end of the disc spring abuts against the second blocking member, and the other end of the disc spring abuts against the second driving sleeve.

[0024] By adopting the above technical solution, the second elastic component includes a second blocking member and a disc spring. The second blocking member is disposed on the rotating shaft, the disc spring is sleeved on the rotating shaft, the disc spring is located between the second blocking member and the second driving sleeve, one end of the disc spring abuts against the second blocking member, and the other end of the disc spring abuts against the second driving sleeve, thereby ensuring the stability and reliability of the keyboard during the opening and closing processes and improving the service life.

[0025] Optionally, the concave-convex mating mechanism further includes a second flange and a second groove. The second flange is disposed on the second cam sleeve, the second groove is disposed on the second driving sleeve, and the shape of the second flange is adapted to the shape of the second groove.

[0026] By adopting the above technical solution, the arrangement of the second flange and the second groove is added. The second flange is disposed on the second cam sleeve, the second groove is disposed on the second driving sleeve, and the shape of the second flange matches the shape of the second groove, realizing the precise engagement between the second flange and the second groove, thereby improving the stability and reliability of the overall structure during the opening and closing processes and providing a better operation experience.

[0027] Optionally, the second flange includes a second end face, the second end face is a plane, a curved surface or an arc surface, and a plurality of second functional slopes with different slopes are disposed on both sides of the second flange. The surface of each second functional slope is a plane, a curved surface or an arc surface.

[0028] By adopting the above technical solution, the second end face of the second flange is designed as a plane, a curved surface or an arc surface, ensuring that the end of the second driving sleeve can accurately abut against the end face of the second flange during the closing stage, realizing the closing anti-lock function. The plurality of second functional slopes with different slopes disposed on both sides of the second flange provide multiple rotation states according to different usage scenarios. During the opening stage and the transition stage, smooth transition and free hovering functions at any position are realized. Specifically, during the opening stage and the transition stage, the side wall of the second functional slope abuts against the inner side wall of the second groove, realizing stable support and free hovering functions. Within the range of the steep slope surface, it can automatically open to the end position without external force, thereby providing a better operation experience and stability.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The user can easily open the flipping component with only one hand, without much effort or the need for both hands to cooperate, greatly improving the convenience of operation.

[0031] 2. Reduces the force required by the user to open or close the flipping component.

[0032] 3. During the opening process of the flipping component, the main body part of the device can remain stable and no longer move with the flipping component, reducing the operation difficulty.

[0033] 4. In the closing stage, the end of the first driving sleeve abuts against the end of the first flange to achieve the closing anti-lock function and prevent the keyboard from automatically opening in the closed state.

[0034] 5. In the opening stage, the first flange is located within the first groove, and the side wall of the first flange abuts against the inner side wall of the first groove to ensure the keyboard is stable and reliable during the opening process and provide stable support.

[0035] 6. In the transition stage, the side wall of the first functional slope of the first flange abuts against the inner side wall of the first groove to achieve the free hovering function at any position and enhance the user experience.

[0036] 7. After opening, it has an end self-locking function, solving the problem of looseness that easily occurs when opening to the end position in the prior art.

[0037] 8. Within the range of the steep slope, when the flipping component is not subjected to external force, it can automatically open to the end position, improving the convenience and reliability of keyboard operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic structural diagram of the multi-functional rotating shaft structure in Embodiment 1 of the present application.

[0039] Figure 2 is a schematic assembly relationship diagram of the multi-functional rotating shaft structure in Embodiment 1 of the present application.

[0040] Figure 3 is a schematic structural diagram of the first cam sleeve and the first functional slope in Embodiment 1 of the present application.

[0041] Figure 4 is a schematic structural diagram of the first cam sleeve from another perspective in Embodiment 1 of the present application.

[0042] Figure 5 is a schematic structural diagram of the second cam sleeve and the second functional slope in Embodiment 1 of the present application.

[0043] Figure 6 is a schematic structural diagram of the first flipping member, the second flipping member, and the third flipping member in Embodiment 2 of the present application.

[0044] Figure 7 It is a schematic diagram of the assembly relationship of the first flipping member, the second flipping member, the third flipping member, the first rotating shaft structure, and the second rotating shaft structure in Embodiment 2 of the present application.

[0045] Figure 8 It is a schematic diagram of the assembly relationship of the first rotating shaft structure in Embodiment 2 of the present application.

[0046] Figure 9 It is a schematic diagram of the assembly relationship of the second rotating shaft structure in Embodiment 2 of the present application.

[0047] Figure 10 It is a schematic diagram of the assembly relationship of the first flipping member, the second flipping member, the third flipping member, the third rotating shaft structure, and the fourth rotating shaft structure in Embodiment 3 of the present application.

[0048] Figure 11 It is a schematic diagram of the assembly relationship of the first flipping member, the second flipping member, the third flipping member, the fifth rotating shaft structure, and the sixth rotating shaft structure in Embodiment 4 of the present application.

[0049] Explanation of reference numerals:

[0050] 1. Rotating shaft; 11. Limiting member; 12. Limiting groove; 2. Torque mechanism; 21. First elastic component; 211. First blocking member; 212. Spring element; 213. First gasket; 22. First driving sleeve; 23. First cam sleeve; 231. First convex block; 3. Damping mechanism; 31. Second elastic component; 311. Second blocking member; 312. Disc spring; 313. Second gasket; 32. Second driving sleeve; 33. Second cam sleeve; 331. Second convex block; 332. Positioning groove; 4. Concave-convex matching mechanism; 41. First flange; 411. First end face; 42. First groove; 43. Second flange; 431. Second end face; 44. Second groove; 5. First functional slope; 51. First slope segment; 52. Second slope segment; 53. Third slope segment; 54. First fillet; 55. Fourth functional slope; 56. Fifth functional slope; 6. Second functional slope; 61. Sixth slope segment; 62. Seventh slope segment; 63. Second fillet; 7. First flipping member; 8. Second flipping member; 9. Third flipping member. Detailed implementation manners

[0051] The following further elaborates on the present application in conjunction with the attached Figures 1-11 for a more detailed description.

[0052] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meanings understood by those skilled in the art to which this application pertains. The "first", "second" and similar terms used in this application do not denote any order, quantity or importance, but are only used to distinguish different components.

[0053] The multi-functional rotating shaft structure provided by the embodiments of this application is mainly applied to electronic devices such as foldable mobile phones, laptops, and tablet computers. The multi-functional rotating shaft structure serves as a key component between the device body (such as the keyboard base that houses the core hardware and processing unit in a laptop) and the flipping component (such as the upper cover or screen panel integrated with a high-definition display). Refer to Figure 1 and Figure 2 , the multi-functional rotating shaft structure includes a rotating shaft 1 for fixedly connecting with the first flipping member 7, a torsion mechanism 2, and a damping mechanism 3. Both the torsion mechanism 2 and the damping mechanism 3 are sleeved on the rotating shaft 1.

[0054] The torsion mechanism 2 includes a first elastic component 21, a first driving sleeve 22, and a first cam sleeve 23. The damping mechanism 3 includes a second elastic component 31, a second driving sleeve 32, and a second cam sleeve 33. Among them, both the first cam sleeve 23 and the second cam sleeve 33 are sleeved on the rotating shaft 1. The first cam sleeve 23 and the second cam sleeve 33 are used for fixedly connecting with the second flipping member 8 or the third flipping member 9 and are both rotatably connected to the rotating shaft 1. The first cam sleeve 23 is fixedly connected to the second cam sleeve 33 and rotates synchronously.

[0055] Specifically, a first protrusion 231 is integrally formed on one side of the first cam sleeve 23 close to the second cam sleeve 33. A second protrusion 331 is integrally formed on one side of the second cam sleeve 33 close to the first cam sleeve 23. A positioning groove 332 is formed on the second protrusion 331. The outer sidewall of the first protrusion 231 abuts against the inner sidewall of the positioning groove 332, and the first protrusion 231 is fixedly connected to the second protrusion 331.

[0056] Refer to Figure 1 and Figure 2 , correspondingly, a limiting member 11 is integrally formed on the surface of the rotating shaft 1. The limiting member 11 on the rotating shaft 1 is located between the first cam sleeve 23 and the second cam sleeve 33. The end of the first cam sleeve 23 abuts against the sidewall of the limiting member 11, and the end of the second cam sleeve 33 abuts against the sidewall of the limiting member 11, realizing the limitation of the first cam sleeve 23 and the second cam sleeve 33, improving the rotation stability of the first cam sleeve 23 and the second cam sleeve 33, and ensuring that the first cam sleeve 23 and the second cam sleeve 33 do not move along the axis direction of the rotating shaft 1 during the rotation around the rotating shaft 1.

[0057] An arc-shaped limiting groove 12 matching the shape of the first convex block 231 or the second convex block 331 is formed on the surface of the limiting member 11, and both ends of the limiting groove 12 are closed. One side of the limiting member 11 close to the rotating shaft 1 is an arc surface. When the first convex block 231 is placed in the limiting groove 12, the arc surface of the first convex block 231 closely abuts against the bottom of the limiting groove 12, realizing smooth and stable sliding fit. The limiting groove 12 limits the rotation angle of the first cam sleeve 23. When the first cam sleeve 23 rotates relative to the rotating shaft 1, the second convex block 331 slides in the limiting groove 12, and the specific shape and length of the limiting groove 12 simultaneously limit the maximum rotation range of the first cam sleeve 23 and the second cam sleeve 33.

[0058] The first driving sleeve 22 and the second driving sleeve 32 are sleeved on the rotating shaft 1 and rotate synchronously with the rotating shaft 1 and can slide along the axial direction of the rotating shaft 1. An uneven matching mechanism 4 is provided between the first driving sleeve 22 and the first cam sleeve 23 and / or between the second driving sleeve 32 and the second cam sleeve 33 and can rotate relatively. When the convex positions of the uneven matching mechanism 4 are opposite to each other, it is the closed position of the flipping member. When the concave position and the convex position of the uneven matching mechanism 4 are inserted into each other, it is the open position of the flipping member. The first elastic component 21 is sleeved on the rotating shaft and acts on the first driving sleeve 22 to drive the first driving sleeve 22 to have a tendency to move towards the direction close to the first cam sleeve 23. The second elastic component 31 is sleeved on the rotating shaft and acts on the second driving sleeve 32 to drive the second driving sleeve 32 to have a tendency to move towards the direction close to the second cam sleeve 33. In the closing stage, the end of the first driving sleeve 22 abuts against the end of the first flange 41 to realize the closing and anti-locking function. In the transition stage, the inner side walls of the uneven matching mechanism 4 abut against each other to realize the free hovering function at any position. In the opening stage, the inner side walls of the uneven matching mechanism 4 abut against each other to realize stable support.

[0059] Specifically, the first elastic component 21 includes a first blocking member 211 and a spring element 212. The first blocking member 211 is arranged at one end of the rotating shaft 1 and can be in the form of a nut, which is convenient for disassembly, assembly and maintenance. The spring element 212 is sleeved on the rotating shaft 1. The spring element 212 is located between the first blocking member 211 and the first driving sleeve 22. One end of the spring element 212 abuts against the first blocking member 211, and the other end of the spring element 212 abuts against the first driving sleeve 22. In this embodiment, the spring element 212 includes a spring instead of a torsion spring to provide torsional resistance. The first driving sleeve 22 is sleeved on the rotating shaft 1 and is in sliding fit with the rotating shaft 1, having good sliding performance.

[0060] A first gasket 213 is also sleeved on the rotating shaft 1 and is located between the spring element 212 and the first stopper 211. A through hole matching the diameter of the rotating shaft 1 is provided in the middle of the first gasket 213. The first gasket 213 not only reduces the direct contact between the spring element 212 and the first stopper 211, but also enhances the elastic effect of the spring element 212.

[0061] In this embodiment, the concave-convex matching mechanism 4 includes a first flange 41 and a first groove 42. In this embodiment, the number of both the first flange 41 and the first groove 42 is two. The two first flanges 41 are integrally formed at one end of the first cam sleeve 23 close to the first drive sleeve 22, and the two first flanges 41 are in a centrosymmetric structure. The two first grooves 42 are both provided at one end of the first drive sleeve 22 close to the first cam sleeve 23, and the two first grooves 42 are also in a centrosymmetric structure. The shape of the first flange 41 is adapted to the shape of the first groove 42, enabling precise engagement between the first flange 41 and the first groove 42, thereby providing stability and reliability during the opening and closing processes.

[0062] Specifically, during the closing stage, the end of the first drive sleeve 22 abuts against the end of the first flange 41 to achieve the closing anti-locking function. During the opening stage, the first flange 41 is located within the first groove 42, and the side wall of the first flange 41 abuts against the inner side wall of the first groove 42 to achieve the end self-locking function; during the transition stage, the side wall of the first functional slope 5 of the first flange 41 abuts against the inner side wall of the first groove 42 to achieve the free hovering function at any position.

[0063] The first flange 41 includes a first end face 411, and the first end face 411 is a flat surface, a curved surface, or an arcuate surface. When the first end face 411 of the first flange 41 abuts against the end of the first drive sleeve 22, the frictional force between the first end face 411 and the first drive sleeve 22 can achieve the hovering of the first flipping member 7. A plurality of first functional slopes 5 with different slopes are provided on both sides of the first flange 41, and the surface of each first functional slope 5 is a flat surface, a curved surface, or an arcuate surface. The first end face 411 of the first flange 41 is a flat surface, a curved surface, or an arcuate surface with a relatively small inclination, which can enable the end of the first drive sleeve 22 to accurately abut against the end of the first flange 41 during the closing stage, ensuring the effective realization of the closing anti-locking function; the plurality of first functional slopes 5 with different slopes provided on both sides of the first flange 41 can provide multiple rotation states according to different usage scenarios, and can achieve smooth transition and free hovering function at any position during the opening stage and the transition stage. Especially when the second slope section 52 is a steep inclined surface, it can automatically open to the end position within the range of the steep inclined surface without external force, thereby providing a better operation experience and stability.

[0064] Refer to Figure 3, on one side of the first flange 41, the first functional slope 5 includes a first slope section 51, a second slope section 52, and a third slope section 53 arranged in sequence. Both the first slope section 51 and the third slope section 53 are gentle slopes, and the second slope section 52 is a steep slope. The inclination of the steep slope is greater than that of the gentle slope. In the closing stage, the end of the first driving sleeve 22 abuts against the end of the first flange 41. In the opening stage, the first flange 41 is located within the first groove 42, and the side wall of the first flange 41 abuts against the inner side wall of the first groove 42. In the transition stage, the side wall of the first functional slope 5 of the first flange 41 abuts against the inner side wall of the first groove 42 to achieve the free hovering function at any position. Due to the first slope section 51, the second slope section 52, and the third slope section 53, both the first slope section 51 and the third slope section 53 are gentle slopes, and the second slope section 52 is a steep slope, so that it can be automatically opened to the end position without external force within the range of the steep slope, and has the end self-locking and closing anti-locking functions after opening.

[0065] The first functional slope 5 on the other side of the first flange 41 includes a fourth functional slope 55 and a fifth functional slope 56 arranged in sequence. Among them, the fourth functional slope 55 is a steep slope, and the fifth functional slope 56 is a gentle slope. Similarly, the inclination of the steep slope is greater than that of the gentle slope.

[0066] Refer to Figure 3 and Figure 4 , a first fillet 54 is provided at the connection of adjacent two first functional slopes 5, so that during the process of the first driving sleeve 22 driving the first cam sleeve 23 to rotate, the transition between each first functional slope 5 is smoother, reducing the torque fluctuation caused by the mutation at the connection of the first functional slopes 5 during the rotation process, thereby improving the operation fluency and user experience of the keyboard during the opening and closing processes.

[0067] Refer to Figure 4 , if the radial angle size of the second slope section 52 is θ, then the range of θ is 5 - 20°, and θ can specifically be 5°, 9°, 10°, 12°, 15°, 19°, or 20°, etc. Within the range of the steep slope, without external force, the rotating shaft structure can be automatically opened to the end position, ensuring the end self-locking function after opening and improving the overall operation fluency.

[0068] Refer to Figure 1 and Figure 2, Specifically, the second elastic component 31 includes a second blocking member 311 and a disc spring 312. The second blocking member 311 is fixed to one end of the rotating shaft 1, also in the form of a nut, which is convenient for disassembly, assembly and maintenance. The disc spring 312 is sleeved on the rotating shaft 1 and is located between the second blocking member 311 and the second driving sleeve 32. One end of the disc spring 312 abuts against the second blocking member 311, and the other end abuts against the second driving sleeve 32. The disc spring 312 is formed by stacking multiple thin sheets, which not only improves the uniform distribution of elastic force, but also reduces stress concentration and fatigue failure, and improves the reliability and service life of the rotating shaft structure.

[0069] A second gasket 313 is also sleeved on the rotating shaft 1, and the second gasket 313 is located between the disc spring 312 and the second blocking member 311. The first gasket 213 not only reduces the direct contact between the disc spring 312 and the second blocking member 311, but also enhances the elastic effect of the disc spring 312.

[0070] In this embodiment, the concave-convex matching mechanism 4 further includes a second flange 43 and a second groove 44. In this embodiment, the number of the second flanges 43 and the second grooves 44 is two each. The two second flanges 43 are centrosymmetric structures, and the two second grooves 44 are also centrosymmetric structures. The two second flanges 43 are integrally formed at one end of the second cam sleeve 33 close to the second driving sleeve 32, and the two second grooves 44 are both opened at one end of the second driving sleeve 32 close to the second cam sleeve 33. The shape of the second flange 43 is adapted to the shape of the second groove 44, which can achieve precise engagement between the second flange 43 and the second groove 44, so as to provide stability and reliability during the opening and closing processes. At the same time, the specific structure of the second flange 43 can be the same as or similar to the structure of the first flange 41, and similarly, the specific structure of the second groove 44 can be the same as or similar to the specific structure of the first groove 42.

[0071] Refer to Figure 5 , the second flange 43 includes a second end face 431. The second end face 431 can be a plane, a curved surface or an arc surface. A plurality of second functional slopes 6 with different slopes are provided on both sides of the second flange 43. A second fillet 63 is provided between two adjacent second functional slopes 6. The surface of each second functional slope 6 is a plane, a curved surface or an arc surface. In this embodiment, the second functional slope 6 on one side of the second flange includes a sixth slope section 61, and the second functional slope 6 on the other side of the second flange 43 includes a seventh slope section 62. The sixth slope section 61 is a steep inclined surface, and the seventh slope section 62 is a gentle inclined surface. Similarly, the inclination of the steep inclined surface is greater than that of the gentle inclined surface, so as to achieve the automatic hovering function on the gentle inclined surface, and can automatically open to the end position when no external force acts within the range of the steep inclined surface, and has the end self-locking and closing anti-locking functions after opening.

[0072] Refer to Figure 1and Figure 2 In the overall layout of the multi-functional rotating shaft structure of this embodiment, the first blocking member 211, the first gasket 213, the spring element 212, the first driving sleeve 22, the first cam sleeve 23, the limiting member 11, the second cam sleeve 33, the second driving sleeve 32, the disc spring 312, the second gasket 313 and the second blocking member 311 are arranged in an orderly manner along the length direction of the rotating shaft 1, ensuring the compactness and functionality of the rotating shaft structure.

[0073] The implementation principle of this embodiment is as follows: Through the carefully designed torsion mechanism 2 and damping mechanism 3, this rotating shaft structure significantly reduces the force required by the user to open or close the flipping component. The user can easily open the flipping component with only one hand, without much effort or the need for both hands to cooperate, greatly improving the operation convenience. At the same time, during the opening process of the flipping component, the main body part of the device can remain stable and no longer move with the flipping component, reducing the operation difficulty. The ingenious application of the first elastic component 21 and the second elastic component 31 enables the flipping component of the electronic product to be automatically driven to the maximum angle (such as the state when a laptop is in normal use) during the opening process, without the user continuously applying force. This design not only saves the user's physical strength but also improves the comfort of use. In the closing stage, the tight fit between the first driving sleeve 22 and the first flange 41 realizes the anti-lock function, effectively preventing the keyboard from accidentally opening and enhancing the safety and stability of the product. The concave-convex matching mechanism 4 in this rotating shaft structure plays a key role during the opening and transition stages. When the keyboard is opened to any angle, the inner side walls of the concave-convex matching mechanism 4 abut against each other, providing stable support for the keyboard and realizing the free hovering function. The synchronous rotation design of the first cam sleeve 23 and the second cam sleeve 33 ensures the stability and synchronism of the flipping part during the opening and closing processes.

[0074] Embodiment 2

[0075] A multi-functional rotating shaft structure provided by an embodiment of the present application, referring to Figure 6 In this embodiment, the multi-functional rotating shaft structure further includes a first flipping part 7, a second flipping part 8 and a third flipping part 9. The second flipping part 8 and the third flipping part 9 are respectively rotatably connected to both ends of the first flipping part 7. The first flipping part 7 is used to connect the flipping component (such as the upper cover or screen panel integrated with a high-definition display), and the second flipping part 8 and the third flipping part 9 are used to connect the device main body (such as the keyboard base in a laptop that houses the core hardware and processing unit). The first flipping part 7 and the second flipping part 8 are rotatably connected through a first rotating shaft structure, and the first flipping part 7 and the third flipping part 9 are rotatably connected through a second rotating shaft structure.

[0076] Referring to Figure 7 and Figure 8, Specifically, the first rotating shaft structure includes a rotating shaft 1 and a torsion mechanism 2. One end of the rotating shaft 1 of the first rotating shaft structure is inserted into one end of the first flipping member 7 and fixedly connected to the first flipping member 7. The second rotating shaft structure includes a rotating shaft 1 and a damping mechanism 3. One end of the rotating shaft 1 of the second rotating shaft structure is inserted into the other end of the first flipping member 7 and fixedly connected to the first flipping member 7, thereby fixing the two rotating shafts 1 together.

[0077] Refer to Figure 7 and Figure 8 , the torsion mechanism 2 of the first rotating shaft structure is exactly the same as the torsion mechanism 2 in Embodiment 1, and also includes a first elastic component 21, a first driving sleeve 22 and a first cam sleeve 23. The first cam sleeve 23 is sleeved on the rotating shaft 1, and the first cam sleeve 23 is rotatably connected to the rotating shaft 1. The second flipping member 8 is sleeved on the outer side wall of the first cam sleeve 23, and the first cam sleeve 23 is fixedly connected to the second flipping member 8. The first driving sleeve 22 is sleeved on the rotating shaft 1 and rotates synchronously with the rotating shaft 1 and can slide along the axial direction of the rotating shaft 1. An uneven mating mechanism 4 is provided between the first driving sleeve 22 and the first cam sleeve and can rotate relative to each other. When the convex positions of the uneven mating mechanism 4 are opposite to each other, it is the closed position of the flipping member. When the concave position of the uneven mating mechanism 4 is inserted into the convex position, it is the open position of the flipping member.

[0078] Refer to Figure 7 and Figure 8 , the first elastic component 21 is sleeved on the rotating shaft 1 and acts on the first driving sleeve 22 to drive the first driving sleeve 22 to have a tendency to move in the direction close to the first cam sleeve 23. The second elastic component 31 is sleeved on the rotating shaft and acts on the second driving sleeve 32 to drive the second driving sleeve 32 to have a tendency to move in the direction close to the second cam sleeve 33.

[0079] Refer to Figure 7 and Figure 9 , in this embodiment, the damping mechanism 3 of the second rotating shaft structure is exactly the same as the damping mechanism 3 in Embodiment 1, and also includes a second elastic component 31, a second driving sleeve 32 and a second cam sleeve 33. The second cam sleeve 33 is sleeved on the rotating shaft 1 and rotatably connected to the rotating shaft 1. The second flipping member 8 is sleeved on the surface of the second cam sleeve 33 and fixedly connected to the second cam sleeve 33, realizing the rotational connection between the first flipping member 7 and the second flipping member 8. The second driving sleeve 32 is sleeved on the rotating shaft 1 and rotates synchronously with the rotating shaft 1 and can slide along the axial direction of the rotating shaft 1. An uneven mating mechanism 4 is provided between the second driving sleeve 32 and the second cam sleeve 33 and can rotate relative to each other. When the convex positions of the uneven mating mechanism 4 are opposite to each other, it is the closed position of the flipping member. When the concave position of the uneven mating mechanism 4 is inserted into the convex position, it is the open position of the flipping member.

[0080] Refer to Figure 7 , during the flipping process of the first flipping member 7, it drives the two rotating shafts 1 to rotate synchronously, thereby driving the first driving sleeve 22 and the second driving sleeve 32 to rotate synchronously, and then simultaneously driving the first cam sleeve 23 and the second cam sleeve 33 to rotate.

[0081] Refer to Figure 8 and Figure 9 , in this embodiment, a limiting member 11 is integrally formed on the surface of each rotating shaft 1. The limiting member 11 on one of the rotating shafts 1 is located between the first cam sleeve 23 and the first flipping member 7, and one end of the first flipping member 7 abuts against one side of the limiting member 11, and the end of the first cam sleeve 23 abuts against the other side of the limiting member 11. The limiting of the first cam sleeve 23 is realized, the stability of the first cam sleeve 23 rotating around the rotating shaft 1 is improved, and it is ensured that the first cam sleeve 23 will not move along the axis direction of the rotating shaft 1 during the process of rotating around the rotating shaft 1.

[0082] The limiting member 11 on the other rotating shaft 1 is located between the second cam sleeve 33 and the second flipping member 8, and one end of the second flipping member 8 abuts against one side of the limiting member 11, and the end of the second cam sleeve 33 abuts against the other side of the limiting member 11. The limiting of the second cam sleeve 33 is realized, the stability of the second cam sleeve 33 rotating around the rotating shaft 1 is improved, and it is ensured that the second cam sleeve 33 will not move along the axis direction of the rotating shaft 1 during the process of rotating around the rotating shaft 1.

[0083] Continue to refer to Figure 8 and Figure 9 , an arc-shaped limiting groove 12 matching the shape of the first convex block 231 is formed on the surface of the limiting member 11, and both ends of the limiting groove 12 are closed. One side of the limiting member 11 close to the rotating shaft 1 is an arc surface. When the first convex block 231 and / or the second convex block 331 is placed in the limiting groove 12, the arc surface of the first convex block 231 and / or the second convex block 331 closely abuts against the bottom of the limiting groove 12, realizing a smooth and stable sliding fit. The limiting groove 12 limits the rotation angle of the first cam sleeve 23 and / or the second cam sleeve 33. When the first cam sleeve 23 and / or the second cam sleeve 33 rotates relative to the rotating shaft 1, the first convex block 231 and / or the second convex block 331 will slide in the limiting groove 12, and the specific shape and length of the limiting groove 12 simultaneously limit the maximum rotation range of the first cam sleeve 23 and the second cam sleeve 33.

[0084] Refer to Figure 8, in the overall layout of the torsion mechanism 2 of the first rotating shaft structure of this embodiment, the first blocking member 211, the first gasket 213, the spring element 212, the first driving sleeve 22, the first cam sleeve 23, and the limiting member 11 are arranged in order along the length direction of the rotating shaft 1, ensuring the compactness and functionality of the rotating shaft structure.

[0085] Referring to Figure 9 , in the overall layout of the damping mechanism 3 of the second rotating shaft structure of this embodiment, the second cam sleeve 33, the second driving sleeve 32, the disc spring 312, the second gasket 313, and the second blocking member 311 are arranged in order along the length direction of the rotating shaft 1, ensuring the compactness and functionality of the rotating shaft structure.

[0086] The implementation principle of this embodiment is as follows: In the closing stage, the end of the first driving sleeve 22 abuts against the end of the first flange 41 to achieve the closing and anti-locking function; in the opening stage, the inner walls of the concave-convex matching mechanism 4 abut against each other to achieve stable support; in the transition stage, the inner walls of the concave-convex matching mechanism 4 abut against each other to achieve the free hovering function at any position; at the same time, the damping mechanism 3 enables the first cam sleeve 23 and the second cam sleeve 33 to simultaneously achieve the free hovering function at any position, and has the end self-locking and closing anti-locking functions after opening. The rotating shaft 1 serves as a support structure, providing a basis for rotation and ensuring the smoothness and reliability of keyboard operation. The rotational connection between the second cam sleeve 33 and the rotating shaft 1 cooperates with the operation of the second elastic component 31 to improve the stability of keyboard use. The rotational connection between the first cam sleeve 23 and the rotating shaft 1 cooperates with the operation of the first elastic component 21 to achieve excellent performance of the torsion mechanism 2, further improving the stability and reliability of the keyboard during the opening and closing processes. The design of the laminated spring makes the elastic force distribution more uniform, reduces stress concentration and fatigue damage, and improves the reliability and service life of the rotating shaft structure.

[0087] Embodiment 3

[0088] A multifunctional rotating shaft structure provided by an embodiment of the present application, referring to Figure 10, the multi-functional rotating shaft structure in this embodiment includes a first flipping member 7, a second flipping member 8, and a third flipping member 9. The second flipping member 8 and the third flipping member 9 are respectively rotatably connected to both ends of the first flipping member 7. Among them, the first flipping member 7 is used to connect a flipping component (such as an upper cover integrated with a high-definition display screen or a screen panel), and the second flipping member 8 and the third flipping member 9 are used to connect the device body (such as a keyboard base in a notebook computer that houses the core hardware and processing unit). Specifically, the first flipping member 7 and the second flipping member 8 are rotatably connected through a third rotating shaft structure, and the first flipping member 7 and the third flipping member 9 are rotatably connected through a fourth rotating shaft structure. The specific structure, installation method, and working principle of the third rotating shaft structure are exactly the same as those of the multi-functional rotating shaft structure in Embodiment 1, and the specific structure, installation method, and working principle of the fourth rotating shaft structure are exactly the same as those of the second rotating shaft structure in Embodiment 2, and will not be elaborated here.

[0089] The implementation principle of this embodiment is as follows: In the closing stage, the end of the first driving sleeve 22 abuts against the end of the first flange 41 to achieve the closing anti-lock function; in the opening stage, the inner walls of the concave-convex matching mechanism 4 abut against each other to achieve stable support; in the transition stage, the inner walls of the concave-convex matching mechanism 4 abut against each other to achieve the free hovering function at any position; at the same time, the damping mechanism 3 enables the first cam sleeve 23 and the second cam sleeve 33 to simultaneously achieve the free hovering function at any position, and has the end point self-locking and closing anti-lock functions after opening. The rotating shaft 1 serves as a support structure, providing the basis for rotation and ensuring the smoothness and reliability of keyboard operation. The rotational connection between the second cam sleeve 33 and the rotating shaft 1 cooperates with the operation of the second elastic component 31 to improve the stability of keyboard use. The rotational connection between the first cam sleeve 23 and the rotating shaft 1 cooperates with the operation of the first elastic component 21 to achieve the excellent performance of the torsion mechanism 2, further improving the stability and reliability of the keyboard during the opening and closing processes. The design of the laminated spring makes the elastic force distribution more uniform, reduces stress concentration and fatigue failure, and improves the reliability and service life of the rotating shaft structure.

[0090] Embodiment 4

[0091] A multi-functional rotating shaft structure provided by an embodiment of the present application, referring to Figure 11, the multi-functional rotating shaft structure includes a first flipping member 7, a second flipping member 8 and a third flipping member 9. The second flipping member 8 and the third flipping member 9 are respectively rotatably connected to both ends of the first flipping member 7. Among them, the first flipping member 7 is used to connect the flipping component (such as the upper cover integrated with a high-definition display screen or the screen panel), and the second flipping member 8 and the third flipping member 9 are used to connect the device body (such as the keyboard base that houses the core hardware and processing unit in a laptop). Among them, the first flipping member 7 and the second flipping member 8 are rotatably connected through a fifth rotating shaft structure, and the first flipping member 7 and the third flipping member 9 are rotatably connected through a sixth rotating shaft structure. The specific structures, installation methods and working principles of the fifth rotating shaft structure and the sixth rotating shaft structure are exactly the same as those of the multi-functional rotating shaft structure in Embodiment 1, and will not be elaborated here.

[0092] The implementation principle of this embodiment is as follows: In the closing stage, the end of the first driving sleeve 22 abuts against the end of the first flange 41 to achieve the closing anti-lock function; in the opening stage, the inner walls of the concave-convex matching mechanism 4 abut against each other to achieve stable support; in the transition stage, the inner walls of the concave-convex matching mechanism 4 abut against each other to achieve the free hovering function at any position; at the same time, the damping mechanism 3 enables the first cam sleeve 23 and the second cam sleeve 33 to simultaneously achieve the free hovering function at any position, and has the end self-locking and closing anti-lock functions after opening. The rotating shaft 1 serves as a support structure, providing the basis for rotation and ensuring the smoothness and reliability of keyboard operations. The rotational connection between the second cam sleeve 33 and the rotating shaft 1 cooperates with the operation of the second elastic component 31 to improve the stability of keyboard use. The rotational connection between the first cam sleeve 23 and the rotating shaft 1 cooperates with the operation of the first elastic component 21 to achieve the excellent performance of the torsion mechanism 2, further improving the stability and reliability of the keyboard during the opening and closing processes. The design of the laminated spring makes the elastic force distribution more uniform, reduces stress concentration and fatigue failure, and improves the reliability and service life of the rotating shaft structure.

[0093] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A multifunctional rotating shaft structure, characterized in that: The invention comprises a rotating shaft (1) for being fixedly connected to a first flip member (7), a torsion mechanism (2) and a damping mechanism (3), wherein the torsion mechanism (2) comprises a first elastic component (21), a first drive sleeve (22) and a first cam sleeve (23); the damping mechanism (3) comprises a second elastic component (31), a second drive sleeve (32) and a second cam sleeve (33); the first cam sleeve (23) and the second cam sleeve (33) are both sleeved on the rotating shaft (1), the first cam sleeve (23) and the second cam sleeve (33) are used to be fixedly connected to a second flip member (8) or a third flip member (9) and are both rotationally connected to the rotating shaft (1), and the first cam sleeve (23) and the second cam sleeve (33) rotate synchronously; the first drive sleeve (22) and the second drive sleeve (32) are sleeved on the rotating shaft (1) and rotate synchronously with the rotating shaft (1). The first drive sleeve (22) and the first cam sleeve (23) or / and the second drive sleeve (32) and the second cam sleeve (33) are provided with a concave-convex matching mechanism (4) and can rotate relative to each other. When the convex positions of the concave-convex matching mechanism (4) are opposite to each other, the flip member is in a closed position. When the concave position and the convex position of the concave-convex matching mechanism (4) are plugged into each other, the flip member is in an open position. The first elastic component (21) is sleeved on the rotary shaft (1) and acts on the first drive sleeve (22) to drive the first drive sleeve (22) to have a tendency to move in a direction close to the first cam sleeve (23). The second elastic component (31) is sleeved on the rotary shaft (1) and acts on the second drive sleeve (32) to drive the second drive sleeve (32) to have a tendency to move in a direction close to the second cam sleeve (33).

2. A multifunctional rotating shaft structure according to claim 1, characterized in that: The concave-convex matching mechanism (4) comprises a first flange (41) and a first groove (42); the first flange (41) is arranged on the first cam sleeve (23); the first groove (42) is arranged on the first driving sleeve (22); the shape of the first flange (41) is adapted to the shape of the first groove (42).

3. A multifunctional rotating shaft structure according to claim 2, characterized in that: The first flange (41) comprises a first end surface (411), the first end surface (411) is a plane, a curved surface or an arc-shaped surface, and a plurality of first functional slopes (5) with different slopes are arranged on both sides of the first flange (41), and the surface of each first functional slope (5) is a plane, a curved surface or an arc-shaped surface.

4. A multifunctional rotating shaft structure according to claim 3, characterized in that: The first functional slope (5) on one side of the first flange (41) comprises a first slope section (51), a second slope section (52) and a third slope section (53) which are arranged in sequence, the first slope section (51) and the third slope section (53) are both gentle slopes, the second slope section (52) is a steep slope, and the inclination of the steep slope is greater than the inclination of the gentle slope.

5. A multifunctional rotating shaft structure according to claim 4, characterized in that: The radial angle of the second slope section (52) is θ, and the range of θ is 5-20°.

6. A multifunctional rotating shaft structure according to claim 3, characterized in that: A first rounded corner (54) is provided at the connection between two adjacent first functional slopes (5).

7. A multifunctional rotating shaft structure according to any one of claims 1 to 6, characterized in that: The first cam sleeve (23) is provided with a first protrusion (231), and the second cam sleeve (33) is provided with a second protrusion (331). The first protrusion (231) and the second protrusion (331) are directly connected via a concave-convex structure or connected via a connecting piece to realize synchronous rotation. A limiting member (11) is fixedly provided on the rotating shaft (1), and an arc-shaped limiting groove (12) is provided on the limiting member (11). The first protrusion (231) or the second protrusion (331) is slidably matched with the limiting groove (12). The limiting member (11) is located between the first cam sleeve (23) and the second cam sleeve (33). The end of the first cam sleeve (23) abuts against the side wall of the limiting member (11), and the end of the second cam sleeve (33) abuts against the side wall of the limiting member (11).

8. A multifunctional rotating shaft structure according to any one of claims 1 to 6, characterized in that: The first elastic component (21) comprises a first blocking member (211) and a spring element (212); the first blocking member (211) is arranged on the rotating shaft (1); the spring element (212) is sleeved on the rotating shaft (1); the spring element (212) is located between the first blocking member (211) and the first driving sleeve (22); one end of the spring element (212) abuts against the first blocking member (211); and the other end of the spring element (212) abuts against the first driving sleeve (22).

9. A multifunctional rotating shaft structure according to any one of claims 1 to 6, characterized in that: The second elastic component (31) comprises a second blocking member (311) and a disc spring (312); the second blocking member (311) is arranged on the rotating shaft (1); the disc spring (312) is sleeved on the rotating shaft (1); the disc spring (312) is located between the second blocking member (311) and the second driving sleeve (32); one end of the disc spring (312) abuts against the second blocking member (311); and the other end of the disc spring (312) abuts against the second driving sleeve (32).

10. A multifunctional rotating shaft structure according to any one of claims 1 to 6, characterized in that: The concave-convex matching mechanism (4) further comprises a second flange (43) and a second groove (44); the second flange (43) is arranged on the second cam sleeve (33); the second groove (44) is arranged on the second driving sleeve (32); the shape of the second flange (43) is adapted to the shape of the second groove (44).

11. A multifunctional rotating shaft structure according to claim 10, characterized in that: The second flange (43) comprises a second end surface (431), the second end surface (431) is a plane, a curved surface or an arc-shaped surface, and second functional slopes (6) with different slopes are arranged on both sides of the second flange (43), and the surface of each second functional slope (6) is a plane, a curved surface or an arc-shaped surface.

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