Angle adjusting device
By combining a spherical support and an adjustment mechanism, the problems of poor lens angle adjustment accuracy and stability are solved, enabling precise adjustment and stable locking of the lens plane angle, thus improving the performance of optical equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEW YIDONG (SHANGHAI) TECH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-04-24
AI Technical Summary
Existing technologies for lens angle adjustment suffer from insufficient adjustment precision and poor stability, which affects the performance of optical equipment.
The system employs a combination of a spherical support and an adjustment mechanism. The adjustment mechanism drives the lower housing to rotate around the spherical support within a preset plane, while a locking mechanism locks the plane angle of the lens, thus achieving precise adjustment.
It achieves precise adjustment and stable locking of the lens plane angle, improving adjustment accuracy and reliability, and is simple and convenient to operate.
Smart Images
Figure CN224163859U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of optical equipment technology, specifically to an angle adjustment device. Background Technology
[0002] In precision optical equipment, optical components, especially reflective lenses, are typically required. To ensure the transmission requirements of the optical path, the lens angles are subject to strict requirements. Therefore, in practical applications, the lens angles need to be adjusted to ensure accurate transmission of the optical path. However, current technologies suffer from insufficient adjustment precision and poor stability when adjusting lens angles, which affects the performance of the optical equipment. Utility Model Content
[0003] The purpose of this application is to provide an angle adjustment device that has high adjustment accuracy, good reliability, and is easy to operate.
[0004] In one aspect of this application, an angle adjustment device is provided, including an upper shell and a lower shell disposed opposite to each other. A spherical support member is disposed between the upper shell and the lower shell. An adjustment mechanism is disposed on the upper shell. The lower shell is used to hold the member to be adjusted. The adjustment mechanism abuts against the lower shell to drive the lower shell to rotate around the spherical support member in a preset plane, thereby adjusting the plane angle of the member to be adjusted. The preset plane is formed by the spherical support member, the abutting surfaces of the two adjustment mechanisms and the lower shell.
[0005] Optionally, there are two sets of adjustment mechanisms, which are located on both sides of the spherical support along the radial direction of the upper housing.
[0006] Optionally, the adjustment mechanism includes an adjustment shaft, which includes a micrometer screw gauge. The end of the adjustment shaft abuts against the lower housing. Rotating the adjustment shaft causes it to push out toward the lower housing, thereby driving the lower housing to rotate around the spherical support in a preset plane. The end of the adjustment shaft that abuts against the lower housing is a spherical end.
[0007] Optionally, a locking mechanism is provided on the surface of the upper housing facing the lower housing to lock the adjustment mechanism, thereby locking the planar angle of the member to be adjusted on the lower housing.
[0008] Optionally, the locking mechanism includes a handle disposed on the upper housing and a wedge disposed on the surface of the upper housing facing the lower housing, with two adjusting axes symmetrically located on both sides of the wedge, and a spherical support protruding through the wedge;
[0009] The wedge has a long slot, and an eccentric shaft connected to the handle is installed in the long slot. By turning the handle, the eccentric shaft is driven to rotate in the long slot, so that the wedge moves in a first direction perpendicular to the line connecting the two adjusting shafts. The movement of the wedge squeezes and locks the adjusting shaft.
[0010] Optionally, a U-shaped structure is formed on the upper housing corresponding to the position of the adjusting shaft. The end of the adjusting shaft that abuts against the lower housing is located inside the U-shaped structure. The side wall of the U-shaped structure has a deformation zone. When the wedge moves along the first direction, the wedge is in a state of abutting against the side wall of the U-shaped structure. When the wedge abuts against the side wall of the U-shaped structure, the deformation zone of the U-shaped structure deforms and squeezes the adjusting shaft, and the adjusting shaft is locked.
[0011] Optionally, a plunger is provided between the eccentric shaft and the handle. The plunger is perpendicular to the eccentric shaft. A groove is also provided on the upper housing corresponding to the position of the plunger. An elastic ball is provided at the end of the plunger facing the groove. When locked, the elastic ball is inserted into the groove.
[0012] Optionally, an elastic element is also provided on the surface of the upper housing facing the lower housing. One end of the elastic element is fixed to the upper housing, and the other end is connected to the wedge-shaped element. The elastic element is used to reset the wedge-shaped element.
[0013] Optionally, a tensioning element is also provided between the upper and lower housings;
[0014] Rigid components are provided at the positions of the lower housing corresponding to the spherical support and the ends of the two adjusting shafts.
[0015] Optionally, the wedge is provided with an elongated stepped hole, and a stepped fastener is matched and provided in the elongated stepped hole. The wedge is pressed against the upper housing by the stepped fastener, and the wedge also moves in the elongated stepped hole.
[0016] The angle adjustment device provided in this application embodiment forms a preset plane through the contact surface between the spherical support, the adjustment mechanism, and the lower housing. The adjustment mechanism drives the lower housing to rotate around the spherical support within the preset plane, thereby adjusting the plane angle of the component to be adjusted. This allows for precise adjustment of the plane angle of the lens or other component within a certain range. The adjustment operation is convenient, simple, and highly reliable. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1a This is one of the schematic diagrams of the angle adjustment device provided in the embodiments of this application;
[0019] Figure 1b This is the second schematic diagram of the angle adjustment device provided in the embodiments of this application;
[0020] Figure 2aThis is one of the partial structural schematic diagrams of the angle adjustment device provided in the embodiments of this application;
[0021] Figure 2b This is a second partial structural schematic diagram of the angle adjustment device provided in the embodiments of this application;
[0022] Figure 3 This is the third partial structural schematic diagram of the angle adjustment device provided in the embodiments of this application;
[0023] Figure 4 This is a schematic diagram of the lower housing structure of the angle adjustment device provided in the embodiments of this application;
[0024] Figure 5a This is the third schematic diagram of the angle adjustment device provided in the embodiments of this application;
[0025] Figure 5b yes Figure 5a A schematic diagram of the AA-direction cross section.
[0026] Icons: 11-Upper housing; 110-Groove; 12-Lower housing; 13-Adjusting shaft; 130-End; 14-Handle; 15-Spherical support; 16-Tightening component; 17-Wedge-shaped component; 170-Long slot hole; 171-Long stepped hole; 172-Wedge-shaped surface; 18-Eccentric shaft; 19-U-shaped structure; 190-Deformation zone; 20-Stepped fastener; 21-Elastic component; 22-Plunger; 23-Hard component; F1-First direction. Detailed Implementation
[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0028] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0029] It should also be noted that, unless otherwise explicitly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] Please refer to Figure 1a , Figure 1b , Figure 2a As shown, this application embodiment provides an angle adjustment device, including: an upper shell 11 and a lower shell 12 disposed opposite to each other, a spherical support member 15 disposed between the upper shell 11 and the lower shell 12, two sets of adjustment mechanisms disposed on the upper shell 11, the two sets of adjustment mechanisms being located on both sides of the spherical support member 15 along the radial direction of the upper shell 11, the lower shell 12 being used to hold the member to be adjusted, the adjustment mechanism abutting against the lower shell 12 to drive the lower shell 12 to rotate around the spherical support member 15 in a preset plane, thereby adjusting the plane angle of the member to be adjusted, the preset plane being formed by the spherical support member 15, the abutting surfaces of the two adjustment mechanisms and the lower shell 12.
[0031] The upper housing 11 and the lower housing 12 are disposed opposite to each other, with a spherical support 15 disposed between them, the spherical support 15 abutting against the lower housing 12. For example, the spherical support 15 is located at the center of the upper housing 11 and the lower housing 12. The upper housing 11 is used to house the adjustment mechanism, and the lower housing 12 is used to mount and fix the component to be adjusted. For example, in the optical field, the lower housing 12 is used to house a lens, and the plane angle of the lens can be adjusted by the adjustment mechanism.
[0032] The adjustment principle is as follows: two sets of adjustment mechanisms are located on both sides of the spherical support 15 along the radial direction of the upper housing 11. In the embodiment of this application, the two sets of adjustment mechanisms are arranged along two 90-degree angle lines along the radial direction of the upper housing 11, that is, the two sets of adjustment mechanisms are at a 90-degree angle in the radial direction of the upper housing 11. The support point of the spherical support 15 and the contact surface between the two adjustment mechanisms and the lower housing 12 form three points. These three points define a preset plane. This preset plane is parallel to the surface of the upper housing 11 facing the lower housing 12, the surface of the lower housing 12 facing the upper housing 11, and the lens. Through the adjustment mechanism, the lower housing 12 can be rotated relative to the upper housing 11 along the spherical support 15 within the preset plane, that is, the plane angle of the lens on the lower housing 12 within the preset plane can be adjusted.
[0033] For example, the three points formed by the spherical support 15 and the two sets of adjustment mechanisms can form a right-angled triangle or an acute-angled triangle. To ensure adjustment accuracy, the three points of the upper housing 11 and the lower housing 12 need to be tightly fitted. A tensioning member 16 can be provided between the upper housing 11 and the lower housing 12 to tighten them. In addition, the tensioning member 16 can also ensure that the upper housing 11 and the lower housing 12 return to their initial state when the adjustment mechanism returns to its original position. For example, the tensioning member 16 can be located at the geometric center of the preset plane formed by the three points. The tensioning member 16 can be a tension spring, an electromagnetic tensioning member 16, or other forms of tensioning, as long as the three points of the upper housing 11 and the lower housing 12 are tightly fitted.
[0034] Furthermore, in order to prevent relative movement between the upper housing 11 and the lower housing 12 along a preset plane, a connector can be used to connect the upper housing 11 and the lower housing 12. For example, the connector can be a thin stainless steel sheet.
[0035] Furthermore, the adjustment mechanism includes an adjustment shaft 13, which includes a micrometer screw gauge. The end 130 of the adjustment shaft 13 abuts against the lower housing 12. Rotating the adjustment shaft 13 causes it to push out toward the lower housing 12, thereby driving the lower housing 12 to rotate around the spherical support 15 in a preset plane.
[0036] The adjusting shaft 13 can also be connected to a handle knob (not shown in the figure), which allows for convenient rotation of the adjusting shaft 13. The end 130 of the adjusting shaft 13 abuts against the lower housing 12. By rotating the adjusting shaft 13, the adjusting shaft 13 can move up and down along its axial direction. Furthermore, through the abutment action between the adjusting shaft 13 and the lower housing 12, the lower housing 12 and the part to be adjusted can rotate in a plane along the spherical support 15, thereby achieving the adjustment of the planar angle of the part to be adjusted within a preset plane.
[0037] The adjusting shaft 13 can be made of a high-precision micrometer screw gauge, which has a precision threaded pair inside. The micrometer screw gauge and the upper housing 11 are fixed by radial locking screws. When the knob handle is turned, the shaft of the micrometer screw gauge can be pushed out or retracted. The graduation value of the micrometer screw gauge can reach 0.001mm, and the adjustment accuracy is ±3μm. The length of the extended adjusting shaft 13 can be precisely adjusted by the micrometer screw gauge, thereby precisely adjusting the plane angle of the workpiece to be adjusted.
[0038] In addition to the structure of a micrometer screw gauge, the adjusting shaft 13 can also adopt other precise linear motion structures to drive the lower housing 12 to rotate in a plane. For example, it can be achieved by using a servo motor to drive a rack and pinion, or by using a precision lead screw. In this case, the adjusting shaft 13 can be presented in the form of a rack and pinion and a lead screw.
[0039] Furthermore, in order to facilitate the rotation of the lower housing 12 within a preset plane, the end 130 of the adjusting shaft 13 that abuts against the lower housing 12 can be set as a spherical end 130, such as a cylindrical head or other spherical structure. The spherical end 130 can further act on the contact surface between the adjusting shaft 13 and the lower housing 12, thereby driving the lower housing 12 to rotate in a plane.
[0040] Based on this, in order to ensure that the member to be adjusted on the lower housing 12 can be maintained at the desired plane angle after adjustment, this application provides a locking mechanism on the surface of the upper housing 11 facing the lower housing 12 to lock the adjustment mechanism, thereby locking the plane angle of the member to be adjusted on the lower housing 12.
[0041] Specifically, the locking mechanism includes a handle 14 disposed on the upper housing 11 and a wedge 17 disposed on the surface of the upper housing 11 facing the lower housing 12. Two adjusting shafts 13 are symmetrically located on both sides of the wedge 17, and a spherical support 15 is exposed through the wedge 17.
[0042] The wedge 17 is provided with an elongated slot 170, and an eccentric shaft 18 connected to the handle 14 is provided in the elongated slot 170. By rotating the handle 14, the eccentric shaft 18 is driven to rotate in the elongated slot 170, so that the wedge 17 moves along a first direction F1 perpendicular to the line connecting the two adjusting shafts 13. The movement of the wedge 17 squeezes and locks the adjusting shaft 13.
[0043] like Figure 2a , Figure 2b As shown, a wedge-shaped member 17 is disposed on the surface of the upper housing 11 facing the lower housing 12. A hole is provided in the center of the wedge-shaped member 17 to expose the spherical support member 15. Stepped fasteners 20, such as stepped screws, are provided on both sides of the spherical support member 15. An elongated stepped hole 171 is provided on the wedge-shaped member 17 corresponding to the position of the stepped fastener 20. The stepped fastener 20 passes through the elongated stepped hole 171. The wedge-shaped member 17 can be pressed onto the upper housing 11 by the stepped fastener 20. The wedge-shaped member 17 can also move along the elongated stepped hole 171 in the first direction F1 along the surface parallel to the upper housing 11 facing the lower housing 12.
[0044] Above the spherical support 15, the wedge-shaped member 17 is also provided with a hole to expose the tensioning member 16. An eccentric shaft 18 is provided above the tensioning member 16. The eccentric shaft 18 is provided with an elongated slot 170 corresponding to the position of the wedge-shaped member 17. The eccentric shaft 18 is located in the elongated slot 170 and extends vertically downward to the lower part of the upper housing 11 to connect with the handle 14. When the handle 14 is rotated, the eccentric shaft 18 is driven to rotate in the elongated slot 170. The rotation of the eccentric shaft 18 can drive the wedge-shaped member 17 to move along the first direction F1. When the wedge-shaped member 17 moves along the first direction F1, it will squeeze the end 130 of the adjusting shaft 13 that abuts against the lower housing 12, thereby enabling the adjusting shaft 13 to achieve the locking function, that is, to lock the end 130 of the adjusting shaft 13 that abuts against the lower housing 12.
[0045] A U-shaped structure 19 is formed on the upper housing 11 corresponding to the position of the adjusting shaft 13. The end 130 of the adjusting shaft 13 abutting against the lower housing 12 is located inside the U-shaped structure 19. The side wall of the U-shaped structure 19 facing the wedge 17 has a deformation zone 190. The two U-shaped structures 19 and the two adjusting shafts 13 are symmetrically located on both sides of the wedge 17. When the wedge 17 moves along the first direction F1, the wedge 17 is in a state of abutting against the side wall of the U-shaped structure 19. When the wedge 17 abuts against the side wall of the U-shaped structure 19, the wedge 17 squeezes the side wall of the U-shaped structure 19, causing the deformation zone 190 of the side wall of the U-shaped structure 19 to deform and squeeze the adjusting shaft 13, thereby locking the adjusting shaft 13 inside the U-shaped structure 19.
[0046] The components in this application are generally metal parts. Therefore, when the wedge 17 moves along the first direction F1 to press the side wall of the U-shaped structure 19, the deformation zone 190 of the side wall of the U-shaped structure 19 produces metal plastic deformation to lock the end 130 of the adjusting shaft 13 that abuts against the lower housing 12.
[0047] In the embodiments of this application, the U-shaped structure 19 is a U-shaped structure, and the side wall of the U-shaped structure 19 that abuts against the wedge-shaped member 17 has a deformation area 190. The deformation area 190 and the wedge-shaped surface 172 of the wedge-shaped member 17 cooperate to abut against each other to achieve locking.
[0048] At the same time, refer to Figure 5a , Figure 5b As shown, a plunger 22 is provided between the eccentric shaft 18 and the handle 14. The plunger 22 is perpendicular to the eccentric shaft 18. The upper housing 11 is also provided with a groove 110 corresponding to the position of the plunger 22. An elastic ball is provided at the end 130 of the plunger 22 facing the groove 110. When locked, the elastic ball is inserted into the groove 110.
[0049] like Figure 3 As shown, the upper end of the handle 14 is connected to an eccentric shaft 18, which is located within the elongated slot 170 of the wedge-shaped member 17. A plunger 22 is positioned between the handle 14 and the eccentric shaft 18, perpendicular to the axis of the eccentric shaft 18 and the axis of the handle 14. Correspondingly, a groove 110 is provided within the upper housing 11, with the plunger 22 corresponding to the groove 110. When locking, rotating the handle 14 causes the wedge-shaped member 17 to move along the first direction F1 to compress and lock the U-shaped structure 19. After locking, the elastic ball at the front end of the plunger 22 pushes into the groove 110 of the upper housing 11, locking the lower housing 12 in its current position and thus locking the planar angle of the component to be adjusted in the lower housing 12.
[0050] When it is necessary to release the lock, such as Figure 2a As shown, an elastic element 21 is also provided on the surface of the upper housing 11 facing the lower housing 12. One end of the elastic element 21 is fixed to the upper housing 11, and the other end is connected to the wedge-shaped element 17. The elastic element 21 is used for the reset of the wedge-shaped element 17.
[0051] When the elastic element 21 is locked, the wedge 17 moves along the first direction F1, at which time the elastic element 21 is tightened; when resetting, the handle 14 is rotated in the opposite direction to release the lock, and the wedge 17 is pulled back in the opposite direction by the tension of the elastic element 21 to reset. The force of pulling back in the opposite direction is parallel to and opposite to the first direction F1.
[0052] In addition, refer to Figure 4 As shown, a rigid component 23 is provided at the positions of the spherical support 15 and the ends 130 of the two adjusting shafts 13 on the lower housing 12. The rigid component 23 is embedded in the lower housing 12 and its surface protrudes slightly from the surface of the lower housing 12. The surface of the rigid component 23 is smooth, flat and has high hardness. For example, the rigid component 23 can be a hard alloy sheet. In this way, the ends 130 of the spherical support 15 and the adjusting shafts 13 contact the lower housing 12 through the rigid component 23, which can prevent elastic deformation caused by metal plastic deformation and ensure the accuracy when adjusting the plane angle of the component to be adjusted.
[0053] In summary, the angle adjustment device provided in this application embodiment, when adjusting the angle, first rotates the handle 14, then the wedge-shaped surface 172 of the wedge-shaped member 17 disengages from the inclined surface of the U-shaped structure 19 of the upper housing 11, the U-shaped structure 19 opens, and the spherical end 130 of the adjustment shaft 13 can freely extend and retract. Rotating the adjustment shaft 13, the spherical end 130 of the adjustment shaft 13 will push against the rigid member 23 of the lower housing 12 carrying the member to be adjusted, and rotate along the plane of the spherical support member 15. Theoretically, adjusting the two adjustment shafts 13 can... The adjustment can be made to achieve any plane angle within a certain angle range. After the adjustment is completed, turn the handle 14. Under the action of the elastic element 21, the wedge 17 returns to its original position. The inclined surface of the front end of the wedge 17 will press against the U-shaped structure 19 on the upper housing 11. The metal deformation at the position of the U-shaped structure 19 will hold the spherical end 130 of the adjusting shaft 13. The elastic ball at the front end of the plunger 22 pushes into the groove 110 of the upper housing 11, thus locking the spherical end 130 of the adjusting shaft 13. At this point, the plane angle adjustment and locking of the adjusting element is completed.
[0054] The angle adjustment device provided in this application embodiment forms three points through the contact surfaces of the spherical support 15, two adjustment mechanisms, and the lower housing 12. These three points define a preset plane. The adjustment mechanisms drive the lower housing 12 to rotate around the spherical support 15 within the preset plane, thereby adjusting the plane angle of the component to be adjusted. To allow the plane angle to be precisely adjusted within a certain range, the spherical support 15 is positioned against the surface of the lower housing 12 facing the upper housing 11. The other two adjustment mechanisms support two other points on the surface of the lower housing 12 facing the upper housing 11. By rotating the two adjustment shafts 13, the length of the adjustment shafts 13 protruding from the surface of the lower housing 12 is changed. Since the end 130 of the adjustment shaft 13 abuts against the lower housing 12, and the lower housing 12 is also supported by the spherical support 15, when the adjustment shafts 13 move up and down along their axial direction, the lower housing 12 can rotate along the spherical support 15, thereby changing the plane angle of the preset plane and thus achieving the adjustment of the plane angle of the component to be adjusted. The angle adjustment device provided in this application embodiment can achieve precise adjustment of the planar angle of the lens or other adjustment component within a certain range. The adjustment operation is convenient and simple, with high reliability. It also has a planar angle locking function and good anti-interference performance.
[0055] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. An angle adjustment device, characterized in that, include: An upper shell and a lower shell are arranged opposite each other, and a spherical support is provided between the upper shell and the lower shell. An adjustment mechanism is provided on the upper shell, and the lower shell is used to hold the part to be adjusted. The adjustment mechanism abuts against the lower shell to drive the lower shell to rotate around the spherical support in a preset plane, thereby adjusting the plane angle of the part to be adjusted. The preset plane is formed by the spherical support, the adjustment mechanism and the abutment surface of the lower shell.
2. The angle adjustment device according to claim 1, characterized in that, The adjustment mechanism consists of two sets, which are located on both sides of the spherical support member along the radial direction of the upper shell.
3. The angle adjustment device according to claim 2, characterized in that, The adjustment mechanism includes an adjustment shaft, which includes a micrometer screw gauge. The end of the adjustment shaft abuts against the lower housing. Rotating the adjustment shaft causes it to push out toward the lower housing, thereby causing the lower housing to rotate around the spherical support in the preset plane. The end of the adjustment shaft that abuts against the lower housing is a spherical end.
4. The angle adjustment device according to claim 2 or 3, characterized in that, A locking mechanism is provided on the surface of the upper housing facing the lower housing to lock the adjustment mechanism, thereby locking the planar angle of the component to be adjusted on the lower housing.
5. The angle adjustment device according to claim 4, characterized in that, The locking mechanism includes a handle disposed on the upper housing and a wedge-shaped member disposed on the surface of the upper housing facing the lower housing. Two adjusting axes are symmetrically located on both sides of the wedge-shaped member, and the spherical support member is exposed through the wedge-shaped member. The wedge-shaped member is provided with an elongated slot, and an eccentric shaft connected to the handle is provided in the elongated slot. By rotating the handle, the eccentric shaft is driven to rotate in the elongated slot, so that the wedge-shaped member moves in a first direction perpendicular to the line connecting the two adjustment shafts, and the movement of the wedge-shaped member squeezes and locks the adjustment shaft.
6. The angle adjustment device according to claim 5, characterized in that, A U-shaped structure is formed on the upper housing corresponding to the position of the adjusting shaft. The end of the adjusting shaft that abuts against the lower housing is located inside the U-shaped structure. The side wall of the U-shaped structure facing the wedge has a deformation zone. When the wedge moves along the first direction, the wedge is in a state of abutting against the side wall of the U-shaped structure. When the wedge abuts against the side wall of the U-shaped structure, the deformation zone of the U-shaped structure deforms and squeezes the adjusting shaft, and the adjusting shaft is locked.
7. The angle adjustment device according to claim 6, characterized in that, A plunger is provided between the eccentric shaft and the handle. The plunger is perpendicular to the eccentric shaft. The upper housing is also provided with a groove corresponding to the position of the plunger. An elastic ball is provided at the end of the plunger facing the groove. When locked, the elastic ball is inserted into the groove.
8. The angle adjustment device according to any one of claims 5 to 7, characterized in that, An elastic element is also provided on the surface of the upper housing facing the lower housing. One end of the elastic element is fixed to the upper housing, and the other end is connected to the wedge-shaped element. The elastic element is used to reset the wedge-shaped element.
9. The angle adjustment device according to claim 2 or 3, characterized in that, A tensioning member is also provided between the upper housing and the lower housing; The lower housing is provided with rigid components at the positions corresponding to the spherical support and the ends of the two adjusting shafts.
10. The angle adjustment device according to any one of claims 5 to 7, characterized in that, The wedge-shaped member is provided with an elongated stepped hole, and a stepped fastener is matched and installed in the elongated stepped hole. The wedge-shaped member is pressed against the upper housing by the stepped fastener, and the wedge-shaped member can also move within the elongated stepped hole.