Rotating assembly and AR glasses
By using a split-design rotating component and damping pads made of wear-resistant materials to achieve sliding friction, the problem of wear on the temples of AR glasses is solved, extending service life and controlling production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-17
AI Technical Summary
Existing AR glasses have temples that automatically close under gravity, resulting in severe wear and tear on the frames and temples, affecting their lifespan and increasing costs.
The rotating component adopts a split design, using damping parts and damping pads made of wear-resistant materials to achieve sliding friction, and combining the rotating parts with low-cost alloy materials to ensure long-term effective damping.
This extends the service life of the rotating components, maintains low-cost production, and achieves a balance between production costs and service life.
Smart Images
Figure CN224005361U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of AR glasses, and in particular to a rotating component and AR glasses. Background Technology
[0002] AR glasses mainly consist of two parts: the frame and the temples. The temples are rotatably mounted on the frame. The temples are relatively heavy, so when the AR glasses are removed from the user's face, the temples can easily close automatically under gravity and impact the frame, causing damage to both the frame and the temples.
[0003] Therefore, some AR glasses incorporate a damping function between the frame and temples. For cost reasons, the frame and temples are typically made of titanium-magnesium alloy. However, due to the poor wear resistance of titanium-magnesium alloy, with increased temple rotation and frequent use of the damping function, the damping area of the frame and temples experiences severe wear, reducing the damping effect and shortening the lifespan of the AR glasses. Utility Model Content
[0004] Therefore, it is necessary to provide a rotating component and AR glasses to address the issue that the damping function between the frame and temples in AR glasses cannot simultaneously meet production costs and service life.
[0005] A rotating assembly, comprising:
[0006] A first rotating member has a first clamping arm and a second clamping arm spaced apart, and a first mounting hole is provided on the first clamping arm.
[0007] The first damping element includes a sleeve, a damping plate, and a positioning plate. The end wall of the sleeve and the edge of the positioning plate are fixed at intervals on the same side of the damping plate. The sleeve passes through the damping plate and is inserted in the middle of the first mounting hole. The damping plate is located on the side of the first clamping arm near the second clamping arm. A portion of the first clamping arm is located between the positioning plate and the outer wall of the sleeve, so that the first damping element is positioned circumferentially in the first mounting hole.
[0008] A rotating shaft, one end of which is disposed inside the sleeve, and the other end of which is disposed on the second clamping arm;
[0009] A second rotating member is rotatably mounted on the rotating shaft and clamped between the damping plate and the second clamping arm. A first positioning groove is provided on the outer wall of the second rotating member.
[0010] The first damping pad is installed in the first positioning groove to be positioned on the second rotating member along the circumferential axis. The first damping pad is attached to the damping plate and pressed against each other.
[0011] In one embodiment, a portion of the first damping pad is located outside the first positioning groove, so that the second rotating member and the damping plate are spaced apart.
[0012] In one embodiment, the rotating assembly further includes a second damping pad and a third damping pad, the second damping pad being mounted on the outer wall of the second rotating member, and the third damping pad being mounted on the second clamping arm and located on the side of the second clamping arm closer to the first clamping arm, the second damping pad and the third damping pad being attached to each other and pressed against each other.
[0013] In one embodiment, the outer wall of the second rotating member is provided with a second positioning groove, and the second damping pad is installed in the second positioning groove to obtain positioning on the second rotating member along the circumferential axis. The outer wall of the second clamping arm is provided with a third positioning groove, and the third damping pad is installed in the third positioning groove to obtain positioning on the second clamping arm along the circumferential axis.
[0014] In one embodiment, a portion of the second damping pad is located outside the second positioning groove, and a portion of the third damping pad is located outside the third positioning groove, so that the second rotating member and the second clamping arm are spaced apart.
[0015] In one embodiment, the shaft passes through the first damping pad, the second damping pad, and the third damping pad.
[0016] In one embodiment, the end of the shaft inside the sleeve is threaded to the inner wall of the sleeve.
[0017] In one embodiment, a limit cap is provided at the end of the rotating shaft at the second clamping arm, the limit cap being located on the side of the second clamping arm opposite to the second rotating member and abutting against the second clamping arm.
[0018] In one embodiment, the first damping element and the first damping pad are made of stainless steel, and the first rotating element and the second rotating element are made of titanium-magnesium alloy.
[0019] An AR glasses pair includes a frame, temples, and a rotating assembly, wherein one of a first rotating member and a second rotating member is mounted on the frame, and the other is mounted on the temples.
[0020] The beneficial effects of this utility model are as follows:
[0021] By positioning the sleeve in the middle of the first mounting hole, the outer wall of the sleeve and the positioning plate clamp the first clamping arm, preventing the first damping element from rotating on the first clamping arm. The first damping pad is positioned circumferentially along the axis of rotation at the outer wall of the second rotating element through the first positioning groove, ensuring synchronous rotation between the first damping pad and the second rotating element.
[0022] The damping plate is located on the side of the first clamping arm closer to the second clamping arm. Therefore, when the second rotating member is clamped between the damping plate and the second clamping arm, the first damping pad located on the outer wall of the second rotating member can come into contact with the damping plate and generate compression. When the second rotating member rotates on the first clamping arm, sliding friction will be generated between the first damping pad and the damping plate, achieving a damping effect.
[0023] Compared to existing technologies, this invention separates a portion of the first rotating component into a first damping component and a portion of the second rotating component into a first damping pad. Both the first damping component and the first damping pad are made of wear-resistant material. The damping effect is achieved through sliding friction between the first damping pad and the damping plate, ensuring the service life of the rotating assembly and the long-term effectiveness of the damping effect. Furthermore, the separate design between the first rotating component and the first damping component, and between the second rotating component and the first damping pad, allows the first rotating component, the shaft, and the second rotating component to still be made of low-cost alloy materials, thus maintaining a low overall production cost for the rotating assembly.
[0024] In summary, this invention can ensure the long-term effectiveness of damping at a low cost, increase service life, and achieve a balance between production cost and service life. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the rotating component in an embodiment of the present invention. Figure 1 ;
[0026] Figure 2 This is a three-dimensional structural diagram of the rotating component in an embodiment of the present invention. Figure 2 ;
[0027] Figure 3 This is a cross-sectional structural diagram of the rotating component in an embodiment of the present invention;
[0028] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;
[0029] Figure 5 for Figure 3 Enlarged structural diagram at point B;
[0030] Figure 6 This is a three-dimensional structural diagram of the first rotating member in an embodiment of the present invention. Figure 1 ;
[0031] Figure 7 This is a three-dimensional structural diagram of the first rotating member in an embodiment of the present invention. Figure 2 ;
[0032] Figure 8 This is a three-dimensional structural diagram of the first damping element in an embodiment of the present invention. Figure 1 ;
[0033] Figure 9 This is a three-dimensional structural diagram of the first damping element in an embodiment of the present invention. Figure 2 ;
[0034] Figure 10 This is a schematic diagram of the three-dimensional structure of the first rotating component, the first damping component, and the third damping pad after assembly in an embodiment of this utility model. Figure 1 ;
[0035] Figure 11 This is a schematic diagram of the three-dimensional structure of the first rotating component, the first damping component, and the third damping pad after assembly in an embodiment of this utility model. Figure 2 ;
[0036] Figure 12 for Figure 11 A schematic diagram of the cross-sectional structure at the location of the first damping component;
[0037] Figure 13 This is a three-dimensional structural diagram of the second rotating component in an embodiment of this utility model;
[0038] Figure 14 This is a three-dimensional structural diagram of the second rotating component, the first damping pad, and the second damping pad after assembly in an embodiment of this utility model.
[0039] Figure label:
[0040] 1. First rotating component; 11. First clamping arm; 111. First mounting hole; 12. Second clamping arm; 121. Third positioning groove; 122. Second mounting hole; 2. First damping component; 21. Sleeve; 22. Damping plate; 23. Positioning plate; 3. Rotating shaft; 31. Limiting cap; 4. Second rotating component; 41. First positioning groove; 42. Second positioning groove; 5. First damping pad; 6. Second damping pad; 7. Third damping pad. Detailed Implementation
[0041] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0047] Example:
[0048] like Figure 1 and Figure 2 As shown, this embodiment provides a rotating assembly, including a first rotating component 1, a rotating shaft 3, and a second rotating component 4. The rotating shaft 3 is mounted on the first rotating component 1 and passes through the second rotating component 4. The second rotating component 4 can rotate on the rotating shaft 3 to achieve a rotational connection between the first rotating component 1 and the second rotating component 4 through the rotating shaft 3.
[0049] See details Figure 6 and Figure 7 The first rotating component 1 has a first clamping arm 11 and a second clamping arm 12 spaced apart. The first clamping arm 11 is provided with a first mounting hole 111, and the second clamping arm 12 is provided with a second mounting hole 122. The two ends of the rotating shaft 3 are respectively installed in the first mounting hole 111 and the second mounting hole 122.
[0050] The rotating assembly in this embodiment also includes a first damping element 2 and a first damping pad 5.
[0051] like Figure 8 and Figure 9As shown, in this embodiment, the first damping element 2 is an integral structure, specifically including a sleeve 21, a damping plate 22, and a positioning plate 23. The end wall of the sleeve 21 is disposed on one side of the damping plate 22, and the sleeve 21 penetrates the damping plate 22 to allow the rotating shaft 3 to pass through the damping plate 22 and enter the sleeve 21. The positioning plate 23 is inclined relative to the damping plate 22; for example, in this embodiment, the positioning plate 23 and the damping plate 22 are perpendicular to each other. The edge of the positioning plate 23 is also fixed to the surface of the damping plate 22, and the positioning plate 23 and the sleeve 21 are located on the same side of the damping plate 22. It is particularly noteworthy that the sleeve 21 and the positioning plate 23 are spaced apart.
[0052] like Figures 10-12 As shown, the first damping member 2 and the first clamping arm 11 are designed separately, so the first damping member 2 and the first rotating member 1 can be made of different materials. Based on the avoidance of the positioning plate 23 on the first clamping arm 11, the sleeve 21 can be inserted through the middle of the first mounting hole 111, and the damping plate 22 is located on the side of the first clamping arm 11 closer to the second clamping arm 12. At the same time, a part of the first clamping arm 11 will be located between the positioning plate 23 and the outer wall of the sleeve 21. The outer wall of the sleeve 21 and the positioning plate 23 cooperate to clamp the first clamping arm 11. Based on this clamping feature, the first damping member 2 can be positioned circumferentially along the first mounting hole 111 on the first clamping arm 11. In other words, this clamping feature can prevent the first damping member 2 from rotating on the first clamping arm 11.
[0053] Preferably, in this embodiment, based on this clamping feature, the first damping member 2 can also be positioned radially in the first mounting hole 111.
[0054] In other words, in this embodiment, the first damping element 2 can achieve circumferential and radial positioning without relying on the fit between the sleeve 21 and the sidewall of the first mounting hole 111, thus imposing fewer restrictions on the shape of the sleeve 21 and the first mounting hole 111. For example, the sleeve 21 can be a circular sleeve, and the first mounting hole 111 can be a circular hole. This matching of a circular sleeve to a circular hole reduces the precision matching requirements between the sleeve 21 and the first mounting hole 111.
[0055] See Figure 3 and Figure 4 One end of the rotating shaft 3 is set in the sleeve 21 by locking or fixing. The rotating shaft 3 can be circumferentially positioned on the first clamping arm 11 by the first damping member 2, which prevents the rotating shaft 3 from rotating on the first clamping arm 11 when the second rotating member 4 rotates.
[0056] See Figure 13 and Figure 14The first damping pad 5 and the second rotating member 4 are also separate structures, so the first damping pad 5 and the second rotating member 4 can be made of different materials. The outer wall of the second rotating member 4 is recessed to form a first positioning groove 41, and the first damping pad 5 is installed in the first positioning groove 41. In this way, the first damping pad 5 is installed on the outer wall of the second rotating member 4.
[0057] See you again Figure 3 and Figure 4 The second rotating component 4 is clamped between the damping plate 22 and the second clamping arm 12, thereby allowing the first damping pad 5 located on the outer wall of the second rotating component 4 to adhere to and press against the damping plate 22. Since the first damping pad 5 is positioned circumferentially along the axis 3 on the outer wall of the second rotating component 4 via the first positioning groove 41, the first damping pad 5 can rotate synchronously with the second rotating component 4. In other words, when the second rotating component 4 rotates on the first clamping arm 11, the first damping pad 5 and the damping plate 22 will rotate relative to each other, and the first damping pad 5 will slide and rub against the damping plate 22, producing a damping effect. In this embodiment, the first damping component 2 and the first damping pad 5 are made of wear-resistant materials (such as stainless steel) to ensure the long-term effectiveness of the damping effect and extend the service life of the entire rotating assembly.
[0058] Meanwhile, the separate design between the first damping component 2 and the first rotating component 1, as well as the separate design between the first damping pad 5 and the second rotating component 4, allows the first damping component 2 and the first rotating component 1 to be made of different materials, and the first damping pad 5 and the second rotating component 4 can also be made of different materials. In other words, the first rotating component 1, the rotating shaft 3, and the second rotating component 4 are still made of low-cost materials (such as titanium-magnesium alloy), ensuring that the main body material of the rotating assembly remains a low-cost material, thereby keeping the production cost of the rotating assembly at a low level and achieving a balance between production cost and service life of the rotating assembly.
[0059] See Figure 4 and Figure 14 A portion of the first damping pad 5 is located outside the first positioning groove 41. The portion of the first damping pad 5 located outside the first positioning groove 41 is pressed against the damping plate 22 so that the second rotating member 4 and the damping plate 22 are spaced apart, thus preventing the second rotating member 4, which is not wear-resistant, from rubbing against the damping plate 22 during rotation.
[0060] In a further preferred embodiment, the rotating assembly also includes a second damping pad 6 and a third damping pad 7, both of which are also made of wear-resistant material. See also Figure 10 and Figure 11 The third damping pad 7 is mounted on the second clamping arm 12 and is located on the side of the second clamping arm 12 closest to the first clamping arm 11. See also Figure 14The second damping pad 6 is mounted on the outer wall of the second rotating member 4. For example... Figure 3 and Figure 5 As shown, the second damping pad 6 and the third damping pad 7 are attached and pressed against each other. When the second rotating member 4 rotates at the second clamping arm 12, the second damping pad 6 will slide and rub against the third damping pad 7. In other words, the second damping pad 6 and the third damping pad 7 can also provide the damping effect between the first rotating member 1 and the second rotating member 4 by working together.
[0061] As a specific example, such as Figure 13 and Figure 14 As shown, the outer wall of the second rotating member 4 is recessed to form a second positioning groove 42. The second damping pad 6 is installed in the second positioning groove 42 to obtain circumferential positioning on the second rotating member 4 along the rotation axis 3, ensuring that the second rotating member 4 and the second damping pad 6 can rotate synchronously. Similarly, see Figure 6 , Figure 7 , Figure 10 and Figure 11 The outer wall of the second clamping arm 12 is recessed to form a third positioning groove 121. The third damping pad 7 is installed in the third positioning groove 121 to achieve circumferential positioning on the second clamping arm 12 along the rotation axis 3, preventing the third damping pad 7 from rotating on the second clamping arm 12. Based on the above positioning effect, it can be ensured that the rotation of the second rotating member 4 on the first rotating member 1 can cause the second damping pad 6 to slide and rub on the third damping pad 7, ensuring that the damping effect between the second damping pad 6 and the third damping pad 7 can be properly implemented.
[0062] In some other embodiments, the third damping pad 7 can be replaced by the first damping element 2. In this part of the embodiment, at the second clamping arm 12, the sleeve 21 passes through the middle of the second mounting hole 122, and the damping plate 22 is located on the side of the second clamping arm 12 close to the first clamping arm 11. A part of the second clamping arm 12 is clamped between the positioning plate 23 and the outer wall of the sleeve 21, so that the first damping element 2 is positioned on the second clamping arm 12 in the circumferential and radial directions along the second mounting hole 122. The damping plate 22 provides a damping effect by adhering and pressing with the second damping pad 6.
[0063] See Figure 5 Similar to the aforementioned structure, a portion of the second damping pad 6 is located outside the second positioning groove 42, and a portion of the third damping pad 7 is located outside the third positioning groove 121. The portion of the second damping pad 6 outside the second positioning groove 42 and the portion of the third damping pad 7 outside the third positioning groove 121 are pressed and adhered to each other, so that the second rotating member 4 and the second clamping arm 12 are spaced apart, avoiding the second rotating member 4, which is not wear-resistant, from rubbing against the second clamping arm 12, which is also not wear-resistant, during rotation.
[0064] Preferably, in this embodiment, the rotating shaft 3 passes through the first damping pad 5, the second damping pad 6, and the third damping pad 7 simultaneously to prevent the first damping pad 5, the second damping pad 6, and the third damping pad 7 from disengaging from the first clamping arm 11 and the second clamping arm 12 due to vibration or other reasons.
[0065] See Figure 4 The end side wall of the rotating shaft 3 inside the sleeve 21 is provided with an external thread, and the inner wall of the sleeve 21 is provided with an internal thread. The end of the rotating shaft 3 inside the sleeve 21 is threadedly connected to the inner wall of the sleeve 21 to facilitate the assembly and disassembly of the rotating shaft 3.
[0066] See Figure 5 In this embodiment, a limit cap 31 is provided at the end of the rotating shaft 3 at the second clamping arm 12. The limit cap 31 is located on the side of the second clamping arm 12 away from the second rotating member 4 and abuts against the second clamping arm 12.
[0067] specific Figure 4 As shown, under normal circumstances, the first clamping arm 11 presses the second rotating member 4 along the axis of the rotating shaft 3 on one side through the damping plate 22 and the first damping pad 5. Specifically... Figure 5 As shown, the second clamping arm 12 presses the second rotating member 4 along the axis of the rotating shaft 3 on the other side through the third damping pad 7 and the second damping pad 6, so as to achieve the clamping of the second rotating member 4 by the first clamping arm 11 and the second clamping arm 12.
[0068] Since the first damping element 2 cannot rotate on the first clamping arm 11, in some other embodiments, rotating the shaft 3 will cause the sleeve 21 to move slightly on the shaft 3, resulting in the sleeve 21 slightly exiting the first mounting hole 111, and the damping plate 22 no longer abutting against the first clamping arm 11, but maintaining a certain gap with the first clamping arm 11. In other words, the distance between the damping plate 22 and the second clamping arm 12 is slightly reduced, and the actual clamping force on the second rotating element 4 will increase. That is, through the threaded fit between the end of the shaft 3 and the inner wall of the sleeve 21, the damping effect between the first damping element 2 and the first damping pad 5, and between the second damping pad 6 and the third damping pad 7, can also be adjusted.
[0069] This embodiment also provides an AR glasses, including a frame, temples, and the rotating assembly. One of the first rotating component 1 and the second rotating component 4 is mounted on the frame, and the other is mounted on the temple. The rotating assembly enables damped rotation of the temples on the frame.
[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0071] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A rotating assembly, comprising: The utility model relates to a rotating assembly, which comprises: a first rotating member (1) having a first clamping arm (11) and a second clamping arm (12) arranged at intervals, wherein a first mounting hole (111) is arranged on the first clamping arm (11); a first damping member (2) comprising a sleeve (21), a damping plate (22) and a positioning plate (23), wherein the end wall of the sleeve (21) and the edge of the positioning plate (23) are fixed on the same side of the damping plate (22), the sleeve (21) penetrates through the damping plate (22), the sleeve (21) is arranged in the first mounting hole (111), the damping plate (22) is arranged on the side of the first clamping arm (11) close to the second clamping arm (12), and a part of the first clamping arm (11) is arranged between the positioning plate (23) and the outer wall of the sleeve (21) so that the first damping member (2) is positioned circumferentially in the first mounting hole (111); a rotating shaft (3) arranged in the sleeve (21) at one end and arranged on the second clamping arm (12) at the other end; a second rotating member (4) arranged in rotation on the rotating shaft (3) and clamped between the damping plate (22) and the second clamping arm (12), wherein the outer wall of the second rotating member (4) is provided with a first positioning groove (41); and a first damping gasket (5) arranged at the first positioning groove (41) so as to be positioned circumferentially on the second rotating member (4) along the rotating shaft (3), wherein the first damping gasket (5) is in contact with and pressed against the damping plate (22).
2. The rotary assembly of claim 1, wherein, A part of the first damping gasket (5) is arranged outside the first positioning groove (41) so that the second rotating member (4) and the damping plate (22) are arranged at intervals.
3. The rotary assembly of claim 1, wherein, The rotating assembly further comprises a second damping gasket (6) and a third damping gasket (7), wherein the second damping gasket (6) is arranged on the outer wall of the second rotating member (4), the third damping gasket (7) is arranged on the second clamping arm (12) and located on the side of the second clamping arm (12) close to the first clamping arm (11), and the second damping gasket (6) and the third damping gasket (7) are in contact and pressed against each other.
4. The rotary assembly of claim 3, wherein, The outer wall of the second rotating member (4) is provided with a second positioning groove (42), the second damping gasket (6) is arranged at the second positioning groove (42) so as to be positioned circumferentially on the second rotating member (4) along the rotating shaft (3), the outer wall of the second clamping arm (12) is provided with a third positioning groove (121), and the third damping gasket (7) is arranged at the third positioning groove (121) so as to be positioned circumferentially on the second clamping arm (12) along the rotating shaft (3).
5. The rotary assembly of claim 4, wherein, Part of the second damping gasket (6) is located outside the second positioning groove (42), and part of the third damping gasket (7) is located outside the third positioning groove (121), so that the second rotating part (4) and the second clamping arm (12) are spaced apart.
6. The rotary union of claim 3, wherein The rotating shaft (3) passes through the first damping gasket (5), the second damping gasket (6) and the third damping gasket (7).
7. The rotary union of claim 1, wherein The end of the rotating shaft (3) in the sleeve (21) is threadedly connected with the inner wall of the sleeve (21).
8. The rotary assembly of claim 7, wherein, The end of the rotating shaft (3) at the second clamping arm (12) is provided with a limiting cap (31) located on the side of the second clamping arm (12) away from the second rotating part (4) and abutting against the second clamping arm (12).
9. The rotary union of claim 1, wherein, The first damping part (2) and the first damping gasket (5) are made of stainless steel, and the first rotating part (1) and the second rotating part (4) are made of titanium-magnesium alloy.
10. An AR eyeglass, characterized by, The rotating assembly comprises a frame, a temple and a rotating assembly according to any one of claims 1-9, one of the first rotating part (1) and the second rotating part (4) is mounted on the frame, and the other is mounted on the temple.