Adjustment mechanism and head-mounted device
By integrating the adjustment mechanism and using a single adjustment component, the problem of complex adjustment structure in VR glasses has been solved, achieving the effects of simplified operation and improved adjustment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHENSHI YUZHAN PRECISION TECH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-12
AI Technical Summary
Existing VR glasses have complex adjustment structures, requiring the operation of multiple adjustment components, which makes the adjustment process cumbersome and inefficient, and fails to meet users' high requirements for comfort and fit.
An integrated adjustment mechanism is adopted, which integrates the left, right, and top belts into the same housing and uses a single adjustment component to achieve synchronous adjustment of multiple belts through gear meshing, simplifying the mechanical structure.
It improves adjustment efficiency, reduces adjustment steps, ensures the accuracy and consistency of adjustment, and enhances the user experience.
Smart Images
Figure CN224354658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of head-mounted device technology, and in particular to an adjustment mechanism and a head-mounted device. Background Technology
[0002] With the continuous development and popularization of Virtual Reality (VR) technology, VR glasses have become common devices in people's daily lives. Because everyone's head shape and size are different, VR glasses need to be adjustable to suit the wearing needs of different users. Currently, most VR glasses on the market use multiple independent adjustment components to control the tightness of different straps, thus adapting to the needs of different users. However, this multi-component adjustment structure is relatively complex, requiring the operation of multiple adjustment components separately, resulting in a cumbersome and inefficient adjustment process. This problem seriously affects the user experience and easily leads to inaccurate adjustments and inconsistent tightness in actual use, failing to meet users' high requirements for comfort and fit. Utility Model Content
[0003] In view of the above situation, it is necessary to provide an adjustment mechanism and a head-mounted device to improve adjustment efficiency.
[0004] This application provides an adjustment mechanism, including:
[0005] case;
[0006] A strap assembly includes a left strap, a right strap, and a top strap. The left strap and the right strap are respectively inserted into both ends of a housing and stacked within the housing. The left strap and the right strap, adjacent to the housing, are respectively provided with a receiving groove and a receiving groove, which are connected. The walls of the receiving groove and the receiving groove are respectively provided with a first rack and a second rack, which are symmetrically arranged. The top strap is spaced apart from the right strap within the housing along the stacking direction of the left and right straps and extends beyond the upper surface of the housing. The top strap, adjacent to the housing, is provided with a placement groove, the wall of which is provided with a third rack.
[0007] The adjustment assembly includes a first gear, a second gear, and an adjustment member. The first gear is movably inserted through the receiving groove and the receiving slot, and meshes with the first rack and the second rack respectively. The first gear is used to drive the left and right belts to retract into or extend out of the housing simultaneously. The second gear is movably inserted through the placement groove and meshes with the third rack. The second gear is coaxially arranged with the first gear and is used to drive the top belt to retract into or extend out of the housing. The adjustment member is movably inserted through the housing, the first gear, and the second gear in sequence. The adjustment member is used to hold the first gear or the second gear to drive the first gear or the second gear to rotate.
[0008] In use, the aforementioned adjustment mechanism and head-mounted device firstly engage with the first gear under external force, causing the first gear to rotate. This allows the first gear to drive the left and right straps to retract or extend from the housing simultaneously as needed. Then, under external force, the adjustment component engages with the second gear, causing the second gear to rotate. This allows the second gear to drive the top strap to retract or extend from the housing as needed. Thus, by integrating the left, right, and top straps into the same housing and using a single adjustment component to adjust multiple straps, the mechanical structure is simplified, adjustment steps are reduced, and adjustment efficiency is improved.
[0009] In some embodiments, the adjusting member includes an adjusting body and a retaining body. The adjusting body is movably disposed sequentially through the housing, the first gear member, and the second gear member. The retaining body protrudes from the outer periphery of the adjusting body and is adapted to the first gear member and the second gear member. The retaining body is used to retain the inner wall of the first gear member or the inner wall of the second gear member.
[0010] In some embodiments, the housing includes:
[0011] The main body has a sliding groove and a through hole on one side along the extension and retraction direction of the left strap. The sliding groove accommodates the stacked left and right straps. The through hole extends through the main body along the stacking direction of the left and right straps and communicates with the sliding groove. The first gear component passes through the through hole. The other side of the main body has a receiving groove and a guide groove. The receiving groove communicates with the sliding groove and the through hole, respectively. The receiving groove is used to accommodate the first gear component and the second gear component. The guide groove extends through the main body along the extension and retraction direction of the top strap and accommodates the top strap.
[0012] The base, which covers the sliding groove and engages with the main body, serves to limit the position of the left and right straps; and
[0013] The cover seals the guide groove and is detachably connected to the main body. The adjusting member is movably inserted through the cover in the direction from the cover to the main body. The cover is used to limit the top strap.
[0014] In some embodiments, the housing further includes:
[0015] A guide sleeve is embedded in the guide groove and connected to the main body. The guide sleeve is sleeved on the top strap and is used to guide the top strap.
[0016] In some embodiments, the adjustment component further includes:
[0017] An isolation component is located in the storage slot and disposed between the first gear component and the second gear component, and the isolation component is snapped into the main body;
[0018] A limiting member covers the second gear member to the isolating member and is detachably connected to the main body. The limiting member has a through hole that extends through the limiting member along the stacking direction of the left and right straps. The second gear member passes through the through hole.
[0019] In some embodiments, both the first gear and the second gear include:
[0020] The gear body includes a gear portion and a connecting portion. The end of the gear portion away from the isolating member has multiple meshing teeth, which are evenly arranged around the circumference of the gear portion. The gear portion is provided with a connecting hole coaxially arranged with the adjusting member. The connecting portion protrudes from the circumference of the gear portion and is spaced apart from the meshing teeth in the direction from the first gear member to the second gear member. The connecting portion is provided with a retaining groove.
[0021] The linkage includes a linkage part, a support part, and a supporting part. The linkage part is inserted into the connection hole and has a linkage groove. The groove wall of the linkage groove is used to engage with the adjusting member. The support part is located on the periphery of the linkage part. The supporting part protrudes from the side of the support part facing the connection part and is inserted into the supporting groove. The supporting part is used to abut against the groove wall of the supporting groove under the drive of the adjusting member, so as to drive the gear part to rotate synchronously.
[0022] In some embodiments, the adjusting member is provided with a first limiting groove and a second limiting groove on its periphery, and the first limiting groove and the second limiting groove are spaced apart along the direction from the first gear member to the second gear member;
[0023] The cover includes a cover plate, a protrusion, and a ball bearing. The cover plate covers the top strap to the main body and is detachably connected to the main body. The protrusion protrudes from the side of the cover plate away from the main body and has a connecting hole. The connecting hole passes through the protrusion and the cover plate in the direction from the first gear to the second gear and is coaxially arranged with the first gear. The ball bearing is rotatably embedded in the protrusion and protrudes into the connecting hole. The ball bearing is used to engage with the first limiting groove to limit the adjustment member from engaging with the first gear, or to engage with the second limiting groove to limit the adjustment member from engaging with the second gear.
[0024] In some embodiments, the adjusting member further includes:
[0025] A handle body is located on one side of the housing and is detachably connected to the adjusting body. The cross-sectional area of the handle body is larger than that of the adjusting body in the extension and retraction direction of the top strap. The handle body is used to drive the adjusting body to move under the action of external force.
[0026] In some embodiments, the base has a support hole located on the side of the base facing the main body and coaxially arranged with the adjusting member. The support hole is used to receive one end of the adjusting member adjacent to the base to support the adjusting member.
[0027] This application also provides a head-mounted device, including:
[0028] The aforementioned regulatory mechanism.
[0029] The aforementioned head-mounted device simplifies the mechanical structure and improves adjustment efficiency by integrating the left, right, and top straps into the same housing and using a single adjustment component to adjust multiple straps. Attached Figure Description
[0030] Figure 1 This is a three-dimensional structural diagram of the head-mounted device provided in an embodiment of this application.
[0031] Figure 2 for Figure 1 The diagram shows an exploded view of the adjustment mechanism in the head-mounted device.
[0032] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the head-mounted device along the III-III direction.
[0033] Figure 4 for Figure 2 The diagram shows the three-dimensional structure of the main body.
[0034] Figure 5 for Figure 2The diagram shows an exploded view of the first gear component.
[0035] Key component symbols: Adjustment mechanism 100, Headset 200, Housing 10, Main body 11, Sliding groove 111, Through hole 112, Storage groove 113, Guide groove 114, Base 12, Support hole 121, Cover 13, Cover plate 131, Protrusion 132, Connecting hole 1321, Ball bearing part 133, Guide sleeve 14, Strap assembly 20, Left strap 21, Receiving groove 211, First rack 212, Right strap 22, Receiving groove 221, Second rack 222, Top strap 23, Placement groove 231, Third rack 232, Partition Components 24, 25, 251, 30, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 32, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33. Detailed Implementation
[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0037] In the description of this application, it should be understood that the terms indicating 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 application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.
[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0039] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.
[0040] Please see Figure 1 This application provides a head-mounted device 200, which includes an adjustment mechanism 100. The adjustment mechanism 100 includes a housing 10, a strap assembly 20, and an adjustment component 30. The head-mounted device 200 can be a VR glasses device, a protective helmet, etc.
[0041] Please see Figure 2 and Figure 3 The strap assembly 20 includes a left strap 21, a right strap 22, and a top strap 23. The left strap 21 and the right strap 22 are respectively inserted into both ends of the housing 10 and stacked inside the housing 10. The left strap 21 and the right strap 22 adjacent to the housing 10 are respectively provided with a receiving groove 211 and a receiving groove 221, which are connected. The groove walls of the receiving groove 211 and the receiving groove 221 are respectively provided with a first rack 212 and a second rack 222, which are symmetrically arranged. The top strap 23 is spaced apart from the right strap 22 inside the housing 10 along the stacking direction of the left strap 21 and the right strap 22, and extends out of the upper surface of the housing 10. The top strap 23 adjacent to the housing 10 is provided with a placement groove 231, and the groove wall of the placement groove 231 is provided with a third rack 232. The adjustment assembly 30 includes a first gear 31, a second gear 32, and an adjustment member 33. The first gear 31 is movably inserted through the receiving groove 211 and the receiving groove 221, and meshes with the first rack 212 and the second rack 222 respectively. The first gear 31 is used to drive the left belt 21 and the right belt 22 to retract or extend synchronously from the housing 10. The second gear 32 is movably inserted through the placement groove 231 and meshes with the third rack 232. The second gear 32 is coaxially arranged with the first gear 31. The second gear 32 is used to drive the top belt 23 to retract or extend from the housing 10. The adjustment member 33 is movably inserted sequentially through the housing 10, the first gear 31, and the second gear 32. The adjustment member 33 is used to hold the first gear 31 or the second gear 32 to drive the first gear 31 or the second gear 32 to rotate.
[0042] In use, the aforementioned adjustment mechanism 100 and head-mounted device 200 firstly, under external force, the adjustment member 33 engages with the first gear member 31 and drives the first gear member 31 to rotate, so that the first gear member 31 drives the left strap 21 and the right strap 22 to retract into or extend out of the housing 10 simultaneously as needed. Then, under external force, the adjustment member 33 engages with the second gear and drives the second gear member 32 to rotate, so that the second gear member 32 drives the top strap 23 to retract into or extend out of the housing 10 as needed. Thus, by integrating the left strap 21, right strap 22, and top strap 23 into the same housing 10 and using a single adjustment component 30 to achieve the adjustment of multiple straps, the mechanical structure is simplified, the adjustment steps are reduced, and the adjustment efficiency is improved.
[0043] Please see Figure 2 and Figure 3 In some embodiments, the adjusting member 33 includes an adjusting body 331 and a retaining body 332. The adjusting body 331 is sequentially and movably disposed through the housing 10, the first gear member 31, and the second gear member 32. The retaining body 332 protrudes from the outer periphery of the adjusting body 331 and is adapted to the first gear member 31 and the second gear member 32. The retaining body 332 is used to retain the inner wall of the first gear member 31 or the inner wall of the second gear member 32. Exemplarily, the retaining body 332 can be any retaining part, retaining block, or similar retaining wheel capable of retaining the first gear member 31 and the second gear member 32, such as a gear.
[0044] Thus, by setting the specific structure of the aforementioned adjusting member 33, the holding body 332 stably holds the first gear member 31 or the second gear member 32, ensuring that the adjusting body 331 stably drives the first gear member 31 or the second gear member 32 to rotate through the holding body 332, thereby improving the operational stability of the adjusting member 33.
[0045] Please see Figure 2 , Figure 3 and Figure 4In some embodiments, the housing 10 includes a main body 11, a base 12, and a cover 13. A sliding groove 111 and a through hole 112 are provided on one side of the main body 11 along the extension / retraction direction of the left strap 21. The sliding groove 111 accommodates the stacked left strap 21 and right strap 22. The through hole 112 extends through the main body 11 along the stacking direction of the left strap 21 and right strap 22 and communicates with the sliding groove 111. A first gear component 31 passes through the through hole 112. A receiving groove 113 and a guide groove 114 are provided on the other side of the main body 11. The receiving groove 113 communicates with the sliding groove 111 and the through hole 112, respectively. The receiving groove 113 is used to accommodate the first gear component 31 and the second gear component 32. The guide groove 114 extends through the main body 11 along the extension / retraction direction of the top strap 23 and accommodates the top strap 23. The base 12 covers the sliding groove 111 and engages with the main body 11. The base 12 is used to limit the left strap 21 and the right strap 22. The cover 13 covers the guide groove 114 and is detachably connected to the main body 11. The adjusting body 331 moves through the cover 13 in the direction from the cover 13 to the main body 11. The cover 13 is used to limit the top strap 23.
[0046] Thus, by setting the specific structure of the housing 10, the sliding groove 111 accommodates the stacked left strap 21 and right strap 22, the receiving groove 113 accommodates the first gear component 31 and the second gear component 32, and the guide groove 114 accommodates the top strap 23, so that the housing 10, the strap assembly 20 and the adjustment assembly 30 are reasonably arranged and the structure is simplified.
[0047] Please see Figure 2 In some embodiments, the housing 10 further includes a guide sleeve 14, which is embedded in the guide groove 114 and connected to the main body 11. The guide sleeve 14 is sleeved on the top strap 23 and is used to guide the top strap 23.
[0048] Thus, by setting the guide sleeve 14, the guide sleeve 14 can guide the telescopic movement direction of the top strap 23, so that the guide sleeve 14 can accurately guide the top strap 23 to extend out of the housing 10 or retract into the housing 10, thereby improving the adjustment stability of the top strap 23.
[0049] In this embodiment, the guide sleeve 14 can be made of materials such as urethane or silicone, and the guide sleeve 14 is embedded in the groove of the guide groove 114. Since the top strap 23 contains precision components such as wires, by embedding the flexible guide sleeve 14 in the groove of the guide groove 114 of the housing 10, the friction and wear of the top strap 23 during movement can be reduced, thus extending the service life of the top strap 23.
[0050] Please see Figure 2 and Figure 3In some embodiments, the adjustment assembly 30 further includes an isolator 24 and a restrictor 25. The isolator 24 is located in the receiving groove 113 and is disposed between the first gear member 31 and the second gear member 32, and the isolator 24 is snapped into the main body 11. The restrictor 25 covers the second gear member 32 to the isolator 24 and is detachably connected to the main body 11, and the restrictor 25 has a through hole 251 that extends through the restrictor 25 along the stacking direction of the left strap 21 and the right strap 22, and the second gear member 32 passes through the through hole 251.
[0051] Thus, by setting the isolator 24 and the restrictor 25, the first gear 31 and the second gear 32 can be effectively separated, avoiding mutual interference between the first gear 31 and the second gear 32, and improving transmission accuracy and reliability. In addition, by setting the through hole 251 in the restrictor 25, the through hole 112 can provide movement space for the second gear 32, avoiding the restrictor 25 interfering with the adjustment operation of the second gear 32.
[0052] Please see Figure 2 and Figure 5 In some embodiments, both the first gear member 31 and the second gear member 32 include a gear body 311 and a linkage body 312. The gear body 311 includes a gear portion 3111 and a connecting portion 3112. The end of the gear portion 3111 away from the isolator 24 has a plurality of meshing teeth 3111a. The plurality of meshing teeth 3111a are evenly arranged along the circumference of the gear portion 3111. The gear portion 3111 is provided with a connecting hole 3111b coaxially arranged with the adjusting body 331. The connecting portion 3112 protrudes from the circumference of the gear portion 3111 and is spaced apart from the meshing teeth 3111a in the direction from the first gear member 31 to the second gear member 32. The connecting portion 3112 is provided with a retaining groove 3112a. The linkage 312 includes a linkage part 3121, a support part 3122, and a holding part 3123. The linkage part 3121 is inserted into the connecting hole 3111b and has a linkage groove 3121a. The groove wall of the linkage groove 3121a is used to engage with the holding body 332. The support part 3122 is located on the periphery of the linkage part 3121. The holding part 3123 protrudes from the side of the support part 3122 facing the connecting part 3112 and is inserted into the holding groove 3112a. The holding part 3123 is used to abut against the groove wall of the holding groove 3112a under the drive of the holding body 332, so as to drive the gear part 3111 to rotate synchronously.
[0053] Thus, by setting the specific structure of the first gear component 31 and the second gear component 32, when the retaining body 332 engages with the linkage groove 3121a, the retaining body 332 drives the support part 3122 to rotate the abutment part 3123. The abutment part 3123 abuts against the groove wall of the abutment groove 3112a and drives the abutment part 3123 to rotate synchronously, so that the meshing teeth 3111a of the gear part 3111 drive the corresponding belt movement, realizing the precise adjustment of the belt and improving the adjustment accuracy. In addition, when the adjustment mechanism 100 is disturbed by external factors, the abutment part 3123 shakes in the abutment groove 3112a. Since the shaking amplitude of the abutment part 3123 is small, there is a certain distance between the abutment part 3123 and the groove wall of the abutment groove 3112a, which avoids the abutment part 3123 from driving the gear part 3111 to rotate due to external factors.
[0054] Please see Figure 3 In some embodiments, the adjusting body 331 is provided with a first limiting groove 3311 and a second limiting groove 3312 on its periphery, and the first limiting groove 3311 and the second limiting groove 3312 are spaced apart along the direction from the first gear member 31 to the second gear member 32. The cover 13 includes a cover plate 131, a protrusion 132, and a ball bearing 133. The cover plate 131 covers the top strap 23 to the main body 11 and is detachably connected to the main body 11. The protrusion 132 protrudes from the side of the cover plate 131 away from the main body 11. The protrusion 132 is provided with a connecting hole 1321. The connecting hole 1321 passes through the protrusion 132 and the cover plate 131 in the direction from the first gear member 31 to the second gear member 32 and is coaxially arranged with the first gear member 31. The ball bearing 133 is rotatably embedded in the protrusion 132 and protrudes to the connecting hole 1321. The ball bearing 133 is used to engage with the first limiting groove 3311 to engage with the first gear member 31 by the limiting retaining body 332, or to engage with the second limiting groove 3312 to engage with the second gear member 32 by the limiting retaining body 332.
[0055] Thus, by setting the specific structure of the first limiting groove 3311, the second limiting groove 3312 and the cover 13, when the holding body 332 is engaged with the first gear 31 or the second gear 32, the ball part 133 is engaged with the first limiting groove 3311 or the second limiting groove 3312, so as to limit the adjustment body 331, ensuring that the limited adjustment body 331 drives the holding body 332 to stably drive the corresponding gear to rotate, thereby improving the smooth operation of the adjustment part 33.
[0056] Please see Figure 2 and Figure 3 In some embodiments, the adjusting member 33 further includes a positioning body 333, which is sleeved on the adjusting body 331 and located in the connecting hole 1321. The positioning body 333 is used to abut against the hole wall of the connecting hole 1321 to adjust the orientation of the adjusting body 331.
[0057] Thus, by setting the positioning body 333 as described above, the positioning body 333 abuts against the wall of the connecting hole 1321 when the adjusting body 331 wobbles or shakes, so as to adjust and position the orientation of the adjusting body 331, ensuring that the adjusting body 331 stably drives the holding body 332 to move, avoiding interference between the holding body 332 and the adjusting body 331 and other components, which is conducive to the smooth driving of the first gear 31 and the second gear 32 by the adjusting member 33.
[0058] Please see Figure 2 In some embodiments, the adjusting member 33 further includes a handle body 334, which is disposed on one side of the housing 10 and detachably connected to the adjusting body 331. The cross-sectional area of the handle body 334 is larger than the cross-sectional area of the adjusting body 331 in the extension and retraction direction of the top strap 23. The handle body 334 is used to drive the adjusting body 331 to move under the action of external force.
[0059] Thus, by setting the handle body 334 as described above, it is easier for the user to hold, further improving the user experience and making it suitable for one-handed operation.
[0060] Please see Figure 2 In some embodiments, the base 12 has a support hole 121. The support hole 121 is located on the side of the base 12 facing the main body 11 and is coaxially arranged with the adjustment body 331. The support hole 121 is used to receive one end of the adjustment body 331 near the base 12 to support the adjustment body 331.
[0061] Thus, by setting the aforementioned support hole 121, the support hole 121 provides a stable support point for the adjusting body 331, ensuring the axial stability of the adjusting body 331 during process movement, thereby reducing the shaking of the adjusting body 331 and ensuring the smooth operation of the adjusting body 331.
[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.
Claims
1. An adjustment mechanism, characterized in that, include: case; A strap assembly includes a left strap, a right strap, and a top strap. The left strap and the right strap are respectively inserted into both ends of a housing and stacked within the housing. The left strap and the right strap, adjacent to the housing, are respectively provided with a receiving groove and a receiving groove, which are connected. The walls of the receiving groove and the receiving groove are respectively provided with a first rack and a second rack, which are symmetrically arranged. The top strap is spaced apart from the right strap within the housing along the stacking direction of the left and right straps and extends beyond the upper surface of the housing. The top strap, adjacent to the housing, is provided with a placement groove, the wall of which is provided with a third rack. The adjustment assembly includes a first gear, a second gear, and an adjustment member. The first gear is movably inserted through the receiving groove and the receiving slot, and meshes with the first rack and the second rack respectively. The first gear is used to drive the left and right belts to retract into or extend out of the housing simultaneously. The second gear is movably inserted through the placement groove and meshes with the third rack. The second gear is coaxially arranged with the first gear and is used to drive the top belt to retract into or extend out of the housing. The adjustment member is movably inserted through the housing, the first gear, and the second gear in sequence. The adjustment member is used to hold the first gear or the second gear to drive the first gear or the second gear to rotate.
2. The adjusting mechanism as described in claim 1, characterized in that, The adjusting component includes an adjusting body and a retaining body. The adjusting body is sequentially and movably disposed through the housing, the first gear component, and the second gear component. The retaining body protrudes from the outer periphery of the adjusting body and is adapted to the first gear component and the second gear component. The retaining body is used to retain the inner wall of the first gear component or the inner wall of the second gear component.
3. The adjusting mechanism as described in claim 1, characterized in that, The housing includes: The main body has a sliding groove and a through hole on one side along the extension and retraction direction of the left strap. The sliding groove accommodates the stacked left and right straps. The through hole extends through the main body along the stacking direction of the left and right straps and communicates with the sliding groove. The first gear component passes through the through hole. The other side of the main body has a receiving groove and a guide groove. The receiving groove communicates with the sliding groove and the through hole, respectively. The receiving groove is used to accommodate the first gear component and the second gear component. The guide groove extends through the main body along the extension and retraction direction of the top strap and accommodates the top strap. The base, which covers the sliding groove and engages with the main body, serves to limit the position of the left and right straps; and The cover seals the guide groove and is detachably connected to the main body. The adjusting member is movably inserted through the cover in the direction from the cover to the main body. The cover is used to limit the top strap.
4. The adjusting mechanism as described in claim 3, characterized in that, The housing also includes: A guide sleeve is embedded in the guide groove and connected to the main body. The guide sleeve is sleeved on the top strap and is used to guide the top strap.
5. The adjusting mechanism as described in claim 3, characterized in that, The adjustment component further includes: An isolation component is located in the storage slot and disposed between the first gear component and the second gear component, and the isolation component is snapped into the main body; A limiting member covers the second gear member to the isolating member and is detachably connected to the main body. The limiting member has a through hole that extends through the limiting member along the stacking direction of the left and right straps. The second gear member passes through the through hole.
6. The adjusting mechanism as described in claim 5, characterized in that, Both the first gear component and the second gear component include: The gear body includes a gear portion and a connecting portion. The end of the gear portion away from the isolating member has multiple meshing teeth, which are evenly arranged around the circumference of the gear portion. The gear portion is provided with a connecting hole coaxially arranged with the adjusting member. The connecting portion protrudes from the circumference of the gear portion and is spaced apart from the meshing teeth in the direction from the first gear member to the second gear member. The connecting portion is provided with a retaining groove. The linkage includes a linkage part, a support part, and a supporting part. The linkage part is inserted into the connection hole and has a linkage groove. The groove wall of the linkage groove is used to engage with the adjusting member. The support part is located on the periphery of the linkage part. The supporting part protrudes from the side of the support part facing the connection part and is inserted into the supporting groove. The supporting part is used to abut against the groove wall of the supporting groove under the drive of the adjusting member, so as to drive the gear part to rotate synchronously.
7. The adjusting mechanism as described in claim 3, characterized in that, The adjusting member is provided with a first limiting groove and a second limiting groove on its periphery, and the first limiting groove and the second limiting groove are spaced apart along the direction from the first gear member to the second gear member; The cover includes a cover plate, a protrusion, and a ball bearing. The cover plate covers the top strap to the main body and is detachably connected to the main body. The protrusion protrudes from the side of the cover plate away from the main body and has a connecting hole. The connecting hole passes through the protrusion and the cover plate in the direction from the first gear to the second gear and is coaxially arranged with the first gear. The ball bearing is rotatably embedded in the protrusion and protrudes into the connecting hole. The ball bearing is used to engage with the first limiting groove to limit the adjustment member from engaging with the first gear, or to engage with the second limiting groove to limit the adjustment member from engaging with the second gear.
8. The adjusting mechanism as described in claim 2, characterized in that, The adjusting component further includes: A handle body is located on one side of the housing and is detachably connected to the adjusting body. The cross-sectional area of the handle body is larger than that of the adjusting body in the extension and retraction direction of the top strap. The handle body is used to drive the adjusting body to move under the action of external force.
9. The adjusting mechanism as described in claim 3, characterized in that, The base has a support hole located on the side of the base facing the main body and coaxially arranged with the adjusting member. The support hole is used to receive one end of the adjusting member adjacent to the base to support the adjusting member.
10. A head-mounted device, characterized in that, include: The adjusting mechanism as described in any one of claims 1-9.