Angle adjustment and locking device

Abstract

This utility model belongs to the field of precision mechanical adjustment technology, and discloses an angle adjustment and locking device, including: an angle adjustment mechanism, in which a movable part is movably connected to a fixed part and the two are arranged along a first direction; the movable part is provided with a mounting position for mounting a target element and can drive the target element to rotate around a second direction; and an angle locking mechanism, including a locking mechanism body, a first flexible hinge, and a locking member. The locking mechanism body includes a side wall along the first direction and a top wall on a horizontal plane defined by the second and third directions. The first flexible hinge is a first slit opened in the side wall along the first direction, with one end of the first slit open. The locking member is configured to lock the side wall to the fixed part, and the locking member can apply a locking force along the second direction to the side wall. The locking force applied by the locking member can drive the first flexible hinge to elastically deform around the third direction to press the angle adjustment mechanism. This device is beneficial for maintaining the adjusted angle state of the movable part when locked.

Description

Technical Field

[0001] This utility model relates to the field of precision mechanical adjustment technology, and in particular to an angle adjustment and locking device. Background Technology

[0002] One-dimensional angle adjustment structures are widely used in various applications where angle precision control is highly sensitive, such as in optomechanical design, where they are often used to adjust the angles of components like lenses, plane mirrors, and sensors. Generally, after the target component's angle is adjusted to the target position, the one-dimensional angle adjustment structure needs to be locked to maintain the current angle and ensure that the target component's angle does not shift during subsequent operations.

[0003] However, during the locking process, the existing one-dimensional angle adjustment structure has low stiffness in the adjustment direction. Therefore, any torque applied in the adjustment direction during the locking operation can easily change the deformation state of the one-dimensional angle adjustment structure, thereby destroying the previously adjusted angle position and affecting the final accuracy of the angle adjustment.

[0004] Therefore, there is an urgent need to propose an angle adjustment and locking device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an angle adjustment and locking device, which helps to maintain the adjusted angle state of the movable part when locking, avoids the angle deviation caused by the locking torque interfering with the adjustment direction, and effectively ensures the final accuracy of the angle adjustment.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides an angle adjustment and locking device, including:

[0008] An angle adjustment mechanism includes a fixed part and a movable part. The fixed part is connected to a mounting base, and the movable part is movably connected to the fixed part. The movable part and the fixed part are arranged along a first direction. The movable part is provided with a mounting position for mounting a target element. The movable part can drive the target element to rotate around a second direction to adjust the angle of the target element.

[0009] An angle locking mechanism includes a locking mechanism body, a first flexible hinge, and a locking member. The locking mechanism body includes a sidewall along a first direction and a top wall defined by a horizontal plane along a second direction and a third direction. The first flexible hinge is a first slit formed in the sidewall along the first direction, with one end of the first slit open. The locking member is configured to lock the sidewall to the fixed part. The locking member can apply a locking force along the second direction to the sidewall. The locking force applied by the locking member can cause the first flexible hinge to elastically deform around the third direction to press the angle adjustment mechanism. The first direction, the second direction, and the third direction are all perpendicular to each other.

[0010] In some embodiments, the first slit is defined by a first deformable portion and a second deformable portion. One end of the first deformable portion is fixedly connected to one end of the second deformable portion to form a closed end of the first slit. The other end of the first deformable portion and the other end of the second deformable portion open opposite each other to form an open end of the first slit. The first slit penetrates the sidewall in a third direction.

[0011] In some embodiments, the first deformable portion is connected to an extended step at one end of the first slit opening, so that the projection shape of the first slit along the third direction is L-shaped, and the locking member is configured to pass through the extended step and be connected to the fixing portion.

[0012] In some embodiments, one closed end of the first slit extends from the sidewall along a first direction to the top wall, the top wall being connected to the movable part, and during installation, the top wall is fitted and connected to the side of the movable part opposite to the fixed part.

[0013] In some embodiments, the top wall is connected to the movable part by a first threaded fastener.

[0014] In some embodiments, a plurality of locking members are provided, and the plurality of locking members are evenly spaced along the third direction.

[0015] In some embodiments, the locking element is configured as a locking screw, and the locking screw is threadedly connected to the fixing part.

[0016] In some embodiments, the angle adjustment mechanism further includes an adjusting screw and a second flexible hinge. The movable part is movably connected to the fixed part via the adjusting screw. The adjusting screw is configured to pass through the movable part and be threadedly connected to the fixed part. The second flexible hinge is disposed between the movable part and the fixed part. The adjusting screw includes an adjusting state and a locked state. When the adjusting screw is in the adjusting state, the second flexible hinge can elastically deform around the second direction to drive the movable part to rotate around the second direction. When the adjusting screw is in the locked state, the adjusting screw is locked to the fixed part to lock the movable part at the current angle.

[0017] In some embodiments, the second flexible hinge is a second slit formed on the fixed part and the movable part along the first direction, the second slit opening at one end along the third direction to form a deformation gap between the fixed part and the movable part.

[0018] In some embodiments, two second slits are arranged along the third direction, the two second slits are symmetrical to each other and the closed ends of the two second slits are adjacent to each other, so that the two deformation gaps corresponding to the two second slits extend opposite to each other along the third direction.

[0019] The beneficial effects of this utility model are:

[0020] The angle adjustment and locking device provided by this utility model sets the angle locking mechanism as the structure of a first flexible hinge, and uses a locking member to apply a locking force to the first flexible hinge, causing the first flexible hinge to generate elastic deformation around a third direction to press the angle adjustment mechanism, rather than acting on the direction sensitive to the angle adjustment of the moving part. This is beneficial to maintain the angle state of the moving part that has been adjusted when locking, and avoids the angle deviation problem caused by the locking torque interfering with the adjustment direction, effectively ensuring the final accuracy of the angle adjustment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the angle adjustment and locking device provided in an embodiment of the present invention;

[0023] Figure 2This is an exploded view of an angle adjustment and locking device provided in an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 This is an exploded view of the angle adjustment and locking device from another perspective provided in this embodiment of the utility model;

[0026] Figure 5 This is a top view of the angle adjustment mechanism provided in this embodiment of the utility model;

[0027] Figure 6 yes Figure 5 Cross-sectional view at point BB.

[0028] In the picture:

[0029] 1. Angle adjustment mechanism; 11. Fixed part; 12. Moving part; 121. Mounting position; 13. Second flexible hinge; 14. Adjusting screw; 15. Deformation gap;

[0030] 2. Angle locking mechanism; 21. First flexible hinge; 211. First deformable part; 212. Second deformable part; 213. Extending step; 22. Locking element; 23. Locking mechanism body; 231. Side wall; 232. Top wall;

[0031] 3. First threaded fastener;

[0032] 4. Second threaded fastener. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "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 of this utility model is in use. They are used only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" 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 mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The embodiments of this utility model 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 utility model, and should not be construed as limiting this utility model.

[0040] like Figures 1-6 As shown, this embodiment provides an angle adjustment and locking device, including an angle adjustment mechanism 1 and an angle locking mechanism 2.

[0041] For ease of understanding, the orientation shown in the figure is used as an example. In this embodiment, all first directions refer to the Z direction in the figure, second directions refer to the X direction, and third directions refer to the Y direction. Specifically, the angle adjustment and locking device in this embodiment is roughly cuboid in shape. The first direction Z is the height direction of the device, the second direction X is the width direction of the device, and the third direction Y is the length direction of the device.

[0042] The angle adjustment mechanism 1 includes a fixed part 11 and a movable part 12. The fixed part 11 is connected to a mounting base (not shown in the figure), and the movable part 12 is movably connected to the fixed part 11. The movable part 12 and the fixed part 11 are arranged along a first direction Z. The movable part 12 is provided with a mounting position 121 for mounting a target element. The movable part 12 can drive the target element to rotate around a second direction X to adjust the angle of the target element. The target element can be a lens, a sensor, etc., and is not specifically limited here.

[0043] The angle locking mechanism 2 includes a locking mechanism body 23, a first flexible hinge 21, and a locking member 22. The locking mechanism body 23 includes a side wall 231 along a first direction Z and a top wall 232 defined by a horizontal plane along a second direction X and a third direction Y. The first flexible hinge 21 is a first slit along the first direction Z formed in the side wall 231, with one end open. The locking member 22 is configured to lock the side wall 231 to the fixing part 11. The locking member 22 can apply a locking force along the second direction X to the side wall 231. The locking force applied by the locking member 22 can cause the first flexible hinge 21 to elastically deform around the third direction Y to press against the angle adjusting mechanism 1. The first direction Z, the second direction X, and the third direction Y are all perpendicular to each other.

[0044] In practice, the target component is first installed in mounting position 121, and then the movable part 12 is rotated around the second direction X (i.e., along the RX direction) to adjust the angle of the target component. The movable part 12 has high stiffness in the other two rotational degrees of freedom (i.e., the RY and RZ directions). After the angle adjustment is completed, the current angle position of the angle adjustment mechanism 1 is locked by the angle locking mechanism 2. The specific locking operation is as follows: the top wall 232 of the locking mechanism body 23 is connected to the movable part 12, and then the locking member 22 is operated to apply a locking force to the side wall 231, causing the first flexible hinge 21 to elastically deform around the third direction Y and press against the angle adjustment mechanism 1. That is, when the locking member 22 is locked, the torque borne by the first flexible hinge 21 is along the RY direction, so no torque is applied to the sensitive RX direction of the movable part 12, thus avoiding damage to the original angle of the movable part 12 during locking.

[0045] The angle adjustment and locking device provided in this embodiment sets the angle locking mechanism 2 as the structure of the first flexible hinge 21, and uses the locking member 22 to apply a locking force to the first flexible hinge 21, causing the first flexible hinge 21 to generate elastic deformation around the third direction Y to press the angle adjustment mechanism 1, rather than acting on the angle adjustment sensitive direction of the movable part 12. This is beneficial to maintain the angle state of the movable part 12 that has been adjusted when locking, and avoids the angle deviation problem caused by the locking torque interfering with the adjustment direction, effectively ensuring the final accuracy of the angle adjustment.

[0046] like Figures 1-3 As shown, in some embodiments, the first slit is defined by a first deformable portion 211 and a second deformable portion 212. One end of the first deformable portion 211 is fixedly connected to one end of the second deformable portion 212 to form a closed end of the first slit. The other end of the first deformable portion 211 and the other end of the second deformable portion 212 open opposite each other to form an open end of the first slit. The first slit penetrates the sidewall 231 in a third direction Y.

[0047] This design significantly increases the contact area between the first flexible hinge 21 and the angle adjustment mechanism 1 during locking, allowing the locking force applied by the locking member 22 to be transmitted more evenly to the corresponding surface of the angle adjustment mechanism 1. This avoids the problem of unstable locking caused by local pressure concentration, and helps to make the locking force more balanced and the fit higher, effectively improving the reliability and stability of locking.

[0048] like Figures 1-3 As shown, in some embodiments, the first deformable portion 211 is connected to an extended step 213 at one end of the first slit opening, so that the projection shape of the first slit along the third direction is L-shaped, and the locking member 22 is configured to pass through the extended step 213 and be connected to the fixing portion 11.

[0049] With this configuration, the locking member 22 does not need to pass through the first deformed part 211 and the second deformed part 212 at the same time. Instead, it is connected to the fixing part 11 through a dedicated extension step 213. This simplifies the assembly path of the locking member 22, avoids the synchronous positioning and drilling of the open ends of the two deformed parts, reduces the difficulty of structural processing and assembly, and helps to improve the transmission efficiency of locking force.

[0050] like Figure 1 As shown, in some embodiments, multiple locking members 22 are provided, and the multiple locking members 22 are evenly spaced along the third direction Y. With this arrangement, the multiple evenly spaced locking members 22 can uniformly transmit the locking force to various positions of the first flexible hinge 21 along the third direction Y, which can make the locking force more balanced.

[0051] In this embodiment, there are two locking elements 22, but it is not limited to this. For example, the locking elements 22 can also be three or four, depending on the actual situation.

[0052] Optionally, the locking element 22 is configured as a locking screw, which is threadedly connected to the fixing part 11. With this configuration, a locking force can be quickly applied by turning the locking element 22.

[0053] like Figure 1 and Figure 2 As shown, in some embodiments, one closed end of the first slit extends from the side wall 231 along the first direction Z to the top wall 232, and the top wall 232 is connected to the movable part 12. During installation, the top wall 232 is attached to the side of the movable part 12 that is away from the fixed part 11.

[0054] This configuration allows the side wall 231 and the top wall 232 to form an integrated connecting carrier. At the same time, the angle between the top wall 232 and the side wall 231 facilitates the quick positioning of the angle locking mechanism 2 relative to the angle adjustment mechanism 1.

[0055] like Figure 1 and Figure 2 , Figure 4 As shown, in some embodiments, the top wall 232 is connected to the movable part 12 by a first threaded fastener 3. The threaded connection provides high connection strength and is easy to operate.

[0056] Optionally, the first threaded fastener 3 may include, but is not limited to, a bolt.

[0057] It should be noted that the connection between the top wall 232 and the movable part 12 is only a connection action for the movable part 12 itself and will not affect the angle and position of the movable part 12 itself.

[0058] like Figure 2 , Figures 4-6 As shown, in some embodiments, the angle adjustment mechanism 1 further includes an adjusting screw 14 and a second flexible hinge 13. The movable part 12 is movably connected to the fixed part 11 via the adjusting screw 14. The adjusting screw 14 is configured to pass through the movable part 12 and be threadedly connected to the fixed part 11. The second flexible hinge 13 is disposed between the movable part 12 and the fixed part 11. The adjusting screw 14 has an adjusting state and a locked state. When the adjusting screw 14 is in the adjusting state, the second flexible hinge 13 can elastically deform around the second direction X to drive the movable part 12 to rotate around the second direction X, thereby adjusting the angle of the movable part 12. When the adjusting screw 14 is in the locked state, the adjusting screw 14 is locked to the fixed part 11 to lock the movable part 12 at the current angle.

[0059] In practice, the angle of the movable part 12 needs to be adjusted. Loosen the adjusting screw 14 to put it in the adjustment state. After adjusting the angle, tighten the adjusting screw 14 to put it in the locking state. The tightened adjusting screw 14 can lock the movable part 12 in the adjusted angle position.

[0060] With this configuration, the angle adjustment and locking can be completed without additional locking components through the coordinated operation of the adjusting screw 14 and the second flexible hinge 13. It has the advantages of simple structure, convenient operation and stable locking, which helps to improve the convenience of use and the reliability of adjustment.

[0061] Specifically, such as Figure 2 As shown, an adjustment screw 14 is provided at each of the two opposite ends of the movable part 12 along the third direction Y. The two adjustment screws 14 are located at the opposite ends of the second flexible hinge 13 along the third direction Y. The angle of the movable part 12 can be adjusted by finely adjusting the two adjustment screws 14.

[0062] like Figure 2 and Figure 6 As shown, in some embodiments, the second flexible hinge 13 is a second slit along the first direction Z formed on the fixed part 11 and the movable part 12. The second slit opens at one end along the third direction Y, so that a deformation gap 15 is formed between the fixed part 11 and the movable part 12. This deformation gap 15 provides sufficient space for the elastic deformation of the second flexible hinge 13 about the second direction X, which can ensure the flexibility of deformation when the movable part 12 is adjusted in angle.

[0063] like Figure 2 and Figure 4 As shown, in some embodiments, two second slits are arranged along the third direction Y. The two second slits are symmetrical to each other and their closed ends are adjacent, so that the two deformation gaps 15 corresponding to the two second slits extend opposite to each other along the third direction Y. With this arrangement, the smoothness and angle adjustment accuracy of the movable part 12 when rotating around the second direction X can be improved by the synergistic elastic deformation of the material in the double slit region.

[0064] like Figure 1 As shown, in some embodiments, the fixing part 11 is connected to the mounting base by a second threaded fastener 4. The threaded connection provides high connection strength and is easy to operate.

[0065] Optionally, the second threaded fastener 4 may include, but is not limited to, being configured as a bolt.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. Angle adjustment and locking device, characterized in that, include: Angle adjustment mechanism (1) includes a fixed part (11) and a movable part (12). The fixed part (11) is connected to the mounting base, and the movable part (12) is movably connected to the fixed part (11). The movable part (12) and the fixed part (11) are arranged along a first direction. The movable part (12) is provided with a mounting position (121) for mounting a target element. The movable part (12) can drive the target element to rotate around a second direction to adjust the angle of the target element. Angle locking mechanism (2) includes a locking mechanism body (23), a first flexible hinge (21), and a locking member (22). The locking mechanism body (23) includes a side wall (231) along the first direction and a top wall (232) defined by a horizontal plane along the second direction and a third direction. The first flexible hinge (21) is a first slit opened in the side wall (231) along the first direction, with one end of the first slit open. The locking member (22) is configured to lock the side wall (231) to the fixing part (11). The locking member (22) can apply a locking force along the second direction to the side wall (231). The locking force applied by the locking member (22) can drive the first flexible hinge (21) to elastically deform around the third direction to press the angle adjustment mechanism (1). The first direction, the second direction, and the third direction are perpendicular to each other.

2. The angle adjustment and locking device according to claim 1, characterized in that, The first slit is defined by a first deformable part (211) and a second deformable part (212). One end of the first deformable part (211) is fixedly connected to one end of the second deformable part (212) to form a closed end of the first slit. The other end of the first deformable part (211) and the other end of the second deformable part (212) open to each other to form an open end of the first slit. The first slit penetrates the sidewall (231) in the third direction.

3. The angle adjustment and locking device according to claim 2, characterized in that, The first deformable part (211) is connected to an extension step (213) at one end of the first slit opening so that the projection shape of the first slit along the third direction is L-shaped, and the locking member (22) is configured to pass through the extension step (213) and be connected to the fixing part (11).

4. The angle adjustment and locking device according to claim 2, characterized in that, One end of the first slit is closed and extends from the side wall (231) along the first direction to the top wall (232). The top wall (232) is connected to the movable part (12). During installation, the top wall (232) is attached to the side of the movable part (12) away from the fixed part (11).

5. The angle adjustment and locking device according to claim 4, characterized in that, The top wall (232) is connected to the movable part (12) by a first threaded fastener (3).

6. The angle adjustment and locking device according to claim 2, characterized in that, The locking member (22) is provided in multiple ways, and the multiple locking members (22) are evenly spaced along the third direction.

7. The angle adjustment and locking device according to claim 6, characterized in that, The locking member (22) is configured as a locking screw, and the locking screw is threadedly connected to the fixing part (11).

8. The angle adjustment and locking device according to any one of claims 1 to 7, characterized in that, The angle adjustment mechanism (1) further includes an adjustment screw (14) and a second flexible hinge (13). The movable part (12) is movably connected to the fixed part (11) through the adjustment screw (14). The adjustment screw (14) is configured to pass through the movable part (12) and be threaded to the fixed part (11). The second flexible hinge (13) is disposed between the movable part (12) and the fixed part (11). The adjustment screw (14) includes an adjustment state and a locking state. When the adjustment screw (14) is in the adjustment state, the second flexible hinge (13) can generate elastic deformation around the second direction to drive the movable part (12) to rotate around the second direction. When the adjustment screw (14) is in the locking state, the adjustment screw (14) is locked to the fixed part (11) to lock the movable part (12) at the current angle.

9. The angle adjustment and locking device according to claim 8, characterized in that, The second flexible hinge (13) is a second slit opened on the fixed part (11) and the movable part (12) along the first direction, the second slit opening at one end along the third direction to form a deformation gap (15) between the fixed part (11) and the movable part (12).

10. The angle adjustment and locking device according to claim 9, characterized in that, There are two second slits arranged along the third direction. The two second slits are symmetrical to each other and the closed ends of the two second slits are adjacent to each other, so that the two deformation gaps (15) corresponding to the two second slits extend opposite to each other along the third direction.

Images