lock control device

Abstract

This application relates to a lock control device. It includes a main unit, a drive mechanism, an adjustment mechanism, and a clamping mechanism. The drive mechanism is rotatably mounted on the main unit. The adjustment mechanism includes: a fixed base fixedly connected to the drive mechanism; a sliding member fixedly connected to the clamping mechanism; and an elastic member disposed between the fixed base and the sliding member. Both ends of the elastic member are fixedly connected to the fixed base and the sliding member, respectively. The elastic member can twist to cause the sliding member to move relative to the fixed base. Since the sliding member can move relative to the fixed base due to the twisting of the elastic member, the sliding direction of the clamping mechanism relative to the fixed base can be selected in multiple ways. This significantly increases the position adjustment range of the clamping mechanism, allowing it to move accurately to a designated position and precisely align with the unlocking knob of a traditional door lock. This improves the matching accuracy between the clamping mechanism and the entire lock control device and the knob.

Description

Technical Field

[0001] This application relates to the field of smart lock technology, and in particular to a lock control device. Background Technology

[0002] Smart locks are widely used due to their convenience and security. However, when choosing a smart lock, some users do not want to replace their existing doors or the non-smart traditional locks on them. Therefore, a lock control device can be installed on the traditional lock, and the lock control device can drive the knob of the traditional lock to turn, thereby unlocking and locking the traditional lock.

[0003] Due to differences in usage habits and technical standards, the rotation styles of traditional door locks vary considerably in different countries and regions. Traditional lock control devices often have the defect of being difficult to align with the knob, thus affecting the accuracy of the fit between the lock control device and the unlocking knob. Utility Model Content

[0004] One of the technical problems addressed by this application is how to improve the fitting accuracy between the locking device and the knob.

[0005] A locking control device includes a main unit, a drive mechanism, an adjustment mechanism, and a clamping mechanism. The drive mechanism is rotatably mounted on the main unit, and the adjustment mechanism includes:

[0006] The fixed base is connected to the drive mechanism for transmission.

[0007] The sliding member is fixedly connected to the clamping mechanism; and

[0008] An elastic element is disposed between the fixed base and the sliding element. The two ends of the elastic element are fixedly connected to the fixed base and the sliding element, respectively. The elastic element can be twisted to drive the sliding element to move relative to the fixed base.

[0009] In one embodiment, the elastic member includes a torsion portion and a connecting portion. One end of the torsion portion is connected to the fixed base, and the other end is connected to the connecting portion. The connecting portion protrudes radially along the torsion portion and is fixedly connected to the sliding member.

[0010] In one embodiment, at least one of the following schemes is also included:

[0011] The adjustment mechanism further includes a fastener, which is detachably connected to the slider, and the connecting portion abuts between the fastener and the slider;

[0012] The number of the connecting parts is multiple, and the multiple connecting parts are arranged at intervals along the circumference of the tapered part;

[0013] The sliding member includes a sliding body and a protruding post. The protruding post protrudes from the surface of the sliding body facing the fixed base, and the connecting part is wrapped around the protruding post.

[0014] In one embodiment, the torsion portion is tapered, extending axially from the fixed base to the slider, and the cross-section of the torsion portion is increased.

[0015] In one embodiment, the adjustment mechanism further includes a mounting component, the drive mechanism is located on one side of the host, the elastic element and the fixed seat are located on the other side of the host, and the mounting component is used to fix the fixed seat, the drive mechanism and the elastic element together.

[0016] In one embodiment, the sliding member has a clearance through hole, and the elastic member has a clearance channel corresponding to the clearance through hole, with the clearance through hole and the clearance channel facing the mounting member.

[0017] In one embodiment, the fixing seat includes a base body and a plurality of positioning posts. The base body has a first surface disposed toward the slider. The number of positioning posts is plurality of, and the plurality of positioning posts are spaced apart from each other and protruding from the first surface. The protrusion length of each positioning post relative to the first surface is equal. The slider has a second surface that abuts against the end of the positioning post and is parallel to the first surface. The elastic member is at least partially housed in the space between the first surface and the second surface.

[0018] In one embodiment, a limiting hole is recessed on the host, and the slider is disposed in the limiting hole, wherein at least a portion of the peripheral surface of the slider can maintain a distance from the inner wall of the limiting hole.

[0019] In one embodiment, the drive mechanism includes an operating button and a drive member. The operating button and the adjustment mechanism are located on opposite sides of the main unit. The drive member is at least partially housed within the main unit and fixedly connected between the operating button and the fixed base. Both the main unit and the operating button are capable of driving the drive member to rotate, thereby causing the fixed base to rotate.

[0020] In one embodiment, the sliding member includes a sliding body, a limiting post, and a fixing member. The limiting post and the fixing member both protrude from the surface of the sliding body facing away from the fixing seat. The limiting post is inserted into the clamping mechanism, and the fixing member is detachably connected to the clamping mechanism.

[0021] One technical effect of one embodiment of this application is that, since the elastic element can be twisted to drive the sliding element to move relative to the fixed seat, the rotation or swing distance of the sliding element can be well controlled by controlling the twisting amplitude of the elastic element. This allows the sliding element to drive the clamping mechanism to move relative to the fixed seat to multiple different positions as required, which greatly improves the position adjustment range of the adjusting mechanism on the clamping mechanism. This ensures that the clamping mechanism moves accurately to the designated position and is accurately aligned with the knob of the traditional door lock, thereby improving the matching accuracy between the lock control device and the knob. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a locking device provided in one embodiment.

[0023] Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the locking device from another perspective.

[0024] Figure 3 for Figure 1 A three-dimensional sectional view of the locking device shown.

[0025] Figure 4 for Figure 1 The exploded view of the locking device is shown.

[0026] Figure 5 for Figure 1 A three-dimensional structural diagram of the adjustment structure in the lock control device shown.

[0027] Figure 6 for Figure 5 A three-dimensional cross-sectional view of the adjustment mechanism shown.

[0028] Figure 7 for Figure 5 The diagram shows the exploded structure of the adjustment mechanism.

[0029] Figure 8 for Figure 5 A three-dimensional cross-sectional view of the elastic element in the adjustment mechanism shown.

[0030] Reference numerals: Locking device 10, Main unit 11, Limiting hole 11a, Drive mechanism 12, Operation button 12a, Drive component 12b, Adjustment mechanism 13, Fixed seat 100, Seat body 110, First surface 111, Positioning post 120, Sliding component 200, Sliding body 210, Second surface 211, Protruding post 220, Limiting post 230, Fixing component 240, Clearance through hole 250, Elastic component 300, Torsion part 310, Connecting part 320, Clearance channel 330, Fastener 410, Pressure block 420, Clamping mechanism 14, Mounting component 500. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship 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.

[0033] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0037] See Figure 1 , Figure 2 and Figure 3 This application provides a lock control device 10 for installation on the knob of a traditional door lock. The knob of the traditional door lock is installed on the side of the door located inside the house. Users can unlock and lock the traditional door lock by rotating the knob. The lock control device 10 provided in this application is installed on the knob of the traditional door lock and can drive the knob of the traditional door lock to rotate electrically / manually, thereby realizing automatic / manual unlocking and locking of the traditional door lock.

[0038] The lock control device 10 includes a main unit 11, a drive mechanism 12, an adjustment mechanism 13, and a clamping mechanism 14. The drive mechanism 12 is rotatably connected to the main unit 11, and the adjustment mechanism 13 is fixedly connected to the drive mechanism 12. The adjustment mechanism 13 can rotate synchronously with the drive mechanism 12 relative to the main unit 11. The clamping mechanism 14 is fixedly connected to the adjustment mechanism 13, so that the clamping mechanism 14 can rotate synchronously with the adjustment mechanism 13 relative to the main unit 11. Therefore, both the clamping mechanism 14 and the adjustment mechanism 13 can rotate synchronously with the drive mechanism 12 relative to the main unit 11. The clamping mechanism 14 is used to clamp the knob of a traditional door lock. When the drive mechanism 12 rotates relative to the main unit 11, the adjustment mechanism 13, the clamping mechanism 14, and the clamped knob will all rotate synchronously with the drive mechanism 12. That is, the drive mechanism 12 will drive the knob of the traditional door lock to rotate through the adjustment mechanism 13 and the clamping mechanism 14, thereby realizing the locking and unlocking of the traditional door lock.

[0039] In an optional embodiment, the main unit 11 includes a main unit housing and an electric drive device. A drive mechanism 12 is rotatably connected to the main unit housing. The electric drive device is located inside the main unit housing and is drive-connected to the drive mechanism 12. The electric drive device can be a motor. The main unit 11 also includes a communication unit and a control unit. The communication unit receives lock / unlock signals, and the control unit controls the electric drive device inside the main unit housing based on the lock / unlock signals to drive the driver 12 and the clamping mechanism 13 to rotate, thus achieving electric unlocking and locking. The drive mechanism 12 can rotate relative to the main unit 11 under the drive of the electric drive device within the main unit 11, or it can rotate relative to the main unit 11 under manual operation. Optionally, a clutch device is provided between the electric drive device and the drive mechanism 12, which prevents interference between manual and electric rotation of the drive mechanism 12.

[0040] Since the knob is located indoors, the main unit 11, drive mechanism 12, adjustment mechanism 13, and clamping mechanism 14 are all installed on the indoor side of the door. When the drive mechanism 12 rotates relative to the main unit 11, the drive mechanism 12 will drive the knob of the traditional door lock to rotate through the adjustment mechanism 13 and clamping mechanism 14, thereby realizing the unlocking and locking of the traditional door lock.

[0041] The lock control device of this application has two locking and unlocking methods: manual and electric. ① The user can manually rotate the drive mechanism 12, causing it to rotate the connected adjustment mechanism 13 and clamping mechanism 14, thereby rotating the knob to achieve manual locking and unlocking. ② The drive mechanism 12 can be rotated by the electric drive device inside the main unit, which in turn rotates the connected adjustment mechanism 13 and clamping mechanism 14, thereby rotating the knob to achieve electric locking and unlocking. In an optional embodiment, the lock control device 10 may further include a control panel installed outdoors. The control panel can receive locking and unlocking commands via password, fingerprint, Bluetooth, or NFC (Near Field Communication), and upon receiving the lock and unlocking command, it sends a lock and unlocking signal to the indoor main unit 11. After receiving the lock and unlocking signal, the control unit inside the main unit 11 activates the electric drive device inside the main unit 11 to rotate the drive mechanism 12, adjustment mechanism 13, clamping mechanism 14, and knob. Of course, in another optional embodiment, the switch signal can be sent directly to the indoor host 11 via remote control through the terminal device, so that the electric drive device in the host 11 drives the drive mechanism 12, the adjustment mechanism 13, the clamping mechanism 14 and the knob to rotate.

[0042] See Figure 3 , Figure 4 and Figure 5In some embodiments, the adjusting mechanism 13 includes a fixed base 100, a sliding member 200, and an elastic member 300. The fixed base 100 is fixedly connected to the driving mechanism 12, the sliding member 200 abuts against the fixed base 100, and the sliding member 200 is fixedly connected to the clamping mechanism 14. The elastic member 300 is disposed between the fixed base 100 and the sliding member 200, and the elastic member 300 can be twisted to drive the sliding member 200 to move relative to the fixed base 100. The twisting motion of the elastic member 300 includes rotation and oscillation. The end of the elastic member 300 connected to the sliding member 200 can rotate in the circumferential direction of a circle and oscillate in the radial direction of the circle. Through the twisting of the elastic member 300, the sliding member 200 can be driven to achieve rotation or oscillation.

[0043] Since the elastic element 300 can be twisted to drive the sliding element 200 to move relative to the fixed seat 100, the rotation or swing distance of the sliding element 200 can be well controlled by controlling the twisting amplitude of the elastic element 300. This allows the sliding element 200 to drive the clamping mechanism 14 to move relative to the fixed seat 100 to multiple different positions as required. This greatly increases the position adjustment range of the clamping mechanism 14 by the adjusting mechanism 13, ensuring that the clamping mechanism 14 moves accurately to the designated position and is accurately aligned with the knob of the traditional door lock, thereby improving the matching accuracy between the lock control device 10 and the knob.

[0044] See Figure 5 , Figure 6 and Figure 8 In some embodiments, the elastic member 300 includes a torsion portion 310 and a connecting portion 320. One end of the torsion portion 310 is fixedly connected to the fixed base 100, and the other end is connected to the connecting portion 320. The torsion portion is cylindrical or conical. The connecting portion 320 protrudes radially from the torsion portion 310 and is fixedly connected to the sliding member 200. Therefore, when the sliding member 200 needs to move, the fixed connection between the connecting portion 320 and the sliding member 200 allows the torsion portion 310 to twist, effectively driving the sliding member 200 to move relative to the fixed base 100.

[0045] See Figure 5 , Figure 6 and Figure 7In some embodiments, the torsion portion 310 is tapered, with its cross-section increased relative to the axis around which the drive mechanism 12 rotates, extending from the fixed base 100 to the slider 200. This results in the larger cross-section end of the torsion portion 310 being positioned closer to the slider 200, while the smaller cross-section end is positioned closer to the fixed base 100. This facilitates torsion of the elastic member 300, ensuring smooth movement of the slider 200 relative to the fixed base 100. In other embodiments, the torsion portion 310 can be cylindrical, meaning its cross-section remains constant along the extension direction of the axis around which the drive mechanism 12 rotates.

[0046] The connecting part 320 is connected to the end of the torsion part 310 with the larger cross-section, that is, the connecting part 320 is connected to the end of the torsion part 310 near the slider 200.

[0047] See Figure 5 , Figure 6 and Figure 7 In some embodiments, the adjusting mechanism 13 further includes a fastener 410, which can be a screw, bolt, rivet, etc. The fastener 410 is detachably connected to the slider 200, for example, the fastener 410 can be threadedly connected to the slider 200. The connecting portion 320 is abutted between the fastener 410 and the slider 200, thus achieving a fixed connection between the connecting portion 320 and the slider 200. When the fastener 410 is a screw, the screw head can directly apply abutment force to the connecting portion 320.

[0048] Of course, in some embodiments, the adjusting mechanism 13 may also include a pressure block 420, which directly abuts against the connecting part 320, and the head of the screw abuts against the pressure block 420. That is, the head of the screw presses against the connecting part 320 through the pressure block 420, thereby fixing the connecting part 320 onto the sliding member 200.

[0049] The number of connecting portions 320 can be multiple, and these connecting portions 320 are spaced apart circumferentially along the torsion portion 310. For example, there can be two connecting portions 320, which can be spaced 180° apart circumferentially along the torsion portion 310. This improves the connection strength between the elastic member 300 and the sliding member 200, ensuring that the elastic member 300 smoothly drives the sliding member 200 to move. When the torsion portion 310 is in its natural state, the central axis of the torsion portion 310 is collinear with the axis around which the drive mechanism 12 rotates. This facilitates the transmission of torque generated by the fixed seat 100 to the sliding member 200 and the clamping mechanism 14 through the elastic member 300, improving the torque transmission efficiency.

[0050] See Figure 5 , Figure 6 and Figure 7In some embodiments, the slider 200 includes a slider body 210 and a protrusion 220. The protrusion 220 protrudes from the surface of the slider body 210 facing the fixed base 100, and the connecting portion 320 is wrapped around the protrusion 220. A pressure block 420 can be sleeved on the protrusion 220, and a fastener 410 can be inserted into the protrusion 220 and fixedly connected to it. By wrapping the connecting portion 320 around the protrusion 220 and pressing it against the slider 200 with the pressure block 420, the connecting portion 320 is prevented from detaching from the slider 200, thereby improving the connection strength between the connecting portion 320 and the slider 200.

[0051] In some embodiments, the adjustment mechanism 13 further includes a mounting member 500, with the operation button 12a of the drive mechanism 12 located on one side of the main unit 11, and the elastic member 300 and the fixed seat 100 located on the other side of the main unit 11. The mounting member 500 is used to fix the fixed seat 100, the drive mechanism 12, and the elastic member 300 together. This improves the ease of assembly of the adjustment mechanism 13.

[0052] In some embodiments, the sliding member 200 has a clearance through hole 250 that penetrates the sliding member 200 along its thickness direction. The elastic member 300 has a clearance channel 330 that corresponds to and communicates with the clearance through hole 250, and the clearance through hole 250 and clearance channel 330 face the mounting member 500. The mounting member 500 can be a bolt or the like, and can pass through the clearance through hole 250 and clearance channel 330, so that the fixed seat 100 and the drive mechanism 12 are threadedly connected, and one end of the elastic member 300 is clamped between the mounting member 500 and the drive mechanism 12, thus fixing the fixed seat 100, the drive mechanism 12 and the elastic member 300 together. The clearance through hole 250 and clearance channel 330 facilitate the assembly of the components of the locking device 10.

[0053] See Figure 5 , Figure 6 and Figure 7The fixed base 100 includes a base body 110 and positioning posts 120, and the number of positioning posts 120 can be multiple. The base body 110 has a first surface 111, which faces the slider 200. Multiple positioning posts 120 protrude from the first surface 111, and the multiple positioning posts 120 can be circumferentially spaced on the base body 110, for example, evenly spaced. Each positioning post 120 has an equal length, that is, the protrusion length of each positioning post 120 relative to the first surface 111 is equal, that is, the multiple positioning posts 120 are arranged at the same height. The slider 200 has a second surface 211, the ends of the positioning posts 120 abut against the second surface 211, and an elastic member 300 abuts against the second surface 211. The elastic member 300 is at least partially received in the space between the first surface 111 and the second surface 211. By setting the positioning post 120, the first surface 111 and the second surface 211 can be prevented from contacting, thereby reducing the contact area between the sliding member 200 and the fixed seat 100, and thus reducing the frictional resistance generated by the sliding member 200 during the sliding process.

[0054] See Figure 5 , Figure 6 and Figure 7 In some embodiments, both the first surface 111 and the second surface 211 are planar and parallel to each other. This ensures that the distance between the first surface 111 and the second surface 211 remains consistent, so that the direction of the slider 200 is always parallel to the first surface 111 and the second surface 211, thereby improving the movement accuracy of the slider 200.

[0055] See Figure 3 In some embodiments, a limiting hole 11a is recessed on the outer surface of the host 11. The slider 200 is rotatably disposed in the limiting hole 11a. At least a portion of the peripheral surface of the slider 200 can maintain a set distance or contact with the inner wall of the limiting hole 11a, allowing the slider 200 to slide within a certain range within the limiting hole 11a. It can be understood that when a portion of the peripheral surface of the slider 200 contacts the inner wall of the limiting hole 11a, the slider 200 will stop sliding. Therefore, by providing the limiting hole 11a, the maximum sliding stroke of the slider 200 can be limited, preventing the adjustment mechanism 13 from adjusting the position of the clamping mechanism 14 too much.

[0056] See Figure 3In some embodiments, the drive mechanism 12 includes an operation button 12a and a drive member 12b. The operation button 12a may be at least partially located outside the main unit 11. The operation button 12a and the adjustment mechanism 13 are located on opposite sides of the main unit 11. The drive member 12b is at least partially housed inside the main unit 11. The drive member 12b is fixedly connected to both the operation button 12a and the fixed base 100, such that the drive member 12b is connected between the operation button 12a and the fixed base 100. The drive member 12b may be a gear or the like. Both the main unit 11 and the operation button 12a can drive the drive member 12b to rotate, thereby causing the fixed base 100 to rotate. The main unit 11 drives the drive component 12b to rotate, which in turn drives the fixed base 100 of the adjustment mechanism 13 to rotate. The fixed base 100, through its connected sliding component 200 and elastic component 300, drives the clamping mechanism 14 to rotate, thus causing the operating button 12a, the adjustment mechanism 13, and the clamping mechanism 14 to rotate synchronously with the drive component 12b. In other words, the main unit 11 drives the drive component 12b to rotate automatically, thereby unlocking and locking the traditional door lock by rotating the knob. Of course, the operating button 12a can also be rotated manually. The operating button 12a drives the fixed base 100 of the adjustment mechanism 13 to rotate through the drive component 12b. The fixed base 100, through its connected sliding component 200 and elastic component 300, drives the clamping mechanism 14 to rotate, thus causing the operating button 12a to drive the adjustment mechanism 13 and the clamping mechanism 14 to rotate synchronously through the drive component 12b.

[0057] See Figure 3 , Figure 4 and Figure 5 In some embodiments, the slider 200 further includes a limiting post 230 and a fixing member 240. Both the limiting post 230 and the fixing member 240 protrude from the surface of the slider body 210 facing away from the fixing seat 100. Clearly, the second surface 211 is disposed on the slider body 210, and the aforementioned protruding post 220 protrudes from the second surface 211. The limiting post 230 is inserted into the clamping mechanism 14, thus achieving the positioning of the clamping mechanism 14 and improving the installation efficiency and accuracy of the clamping mechanism 14. The fixing member 240 can be detachably connected to the clamping mechanism 14; for example, the fixing member 240 can be snap-fitted to the clamping mechanism 14, thus achieving a fixed connection between the clamping mechanism 14 and the slider 200.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A locking control device, characterized in that, It includes a main unit, a drive mechanism, an adjustment mechanism, and a clamping mechanism. The drive mechanism is rotatably mounted on the main unit, and the adjustment mechanism includes: The fixed base is connected to the drive mechanism for transmission. The sliding member is fixedly connected to the clamping mechanism; and An elastic element is disposed between the fixed base and the sliding element. The two ends of the elastic element are fixedly connected to the fixed base and the sliding element, respectively. The elastic element can be twisted to drive the sliding element to move relative to the fixed base.

2. The locking device according to claim 1, characterized in that, The elastic element includes a torsion part and a connecting part. One end of the torsion part is connected to the fixed base, and the other end is connected to the connecting part. The connecting part protrudes radially along the torsion part and is fixedly connected to the sliding element.

3. The locking device according to claim 2, characterized in that, It also includes at least one of the following options: The adjustment mechanism further includes a fastener, which is detachably connected to the slider, and the connecting portion abuts between the fastener and the slider; The number of the connecting parts is multiple, and the multiple connecting parts are arranged at intervals along the circumference of the torsion part; The sliding member includes a sliding body and a protrusion. The protrusion protrudes from the surface of the sliding body facing the fixed base, and the connecting part is wrapped around the protrusion.

4. The locking device according to claim 2, characterized in that, The torsion section is conical, extending axially from the fixed base to the sliding member, and the cross-section of the torsion section is increased.

5. The locking device according to claim 1, characterized in that, The adjustment mechanism also includes a mounting component. The drive mechanism is located on one side of the host, and the elastic element and the fixed seat are located on the other side of the host. The mounting component is used to fix the fixed seat, the drive mechanism and the elastic element together.

6. The locking device according to claim 5, characterized in that, The sliding member has a clearance through hole, and the elastic member has a clearance channel corresponding to the clearance through hole. The clearance through hole and the clearance channel are directly opposite the mounting member.

7. The locking device according to claim 1, characterized in that, The fixed base includes a base body and a plurality of positioning posts. The base body has a first surface facing the slider. The number of positioning posts is plurality of, and the plurality of positioning posts are spaced apart from each other and protrude from the first surface. The protrusion length of each positioning post relative to the first surface is equal. The slider has a second surface that abuts against the end of the positioning post and is parallel to the first surface. The elastic member is at least partially housed in the space between the first surface and the second surface.

8. The locking device according to claim 1, characterized in that, The main unit has a recessed limiting hole, and the sliding member is disposed in the limiting hole. At least a portion of the peripheral surface of the sliding member can maintain a distance from the inner wall of the limiting hole.

9. The locking device according to any one of claims 1 to 8, characterized in that, The drive mechanism includes an operating button and a drive component. The operating button and the adjustment mechanism are located on opposite sides of the main unit. The drive component is at least partially housed within the main unit and fixedly connected between the operating button and the fixed base. Both the main unit and the operating button can drive the drive component to rotate, thereby causing the fixed base to rotate.

10. The locking device according to claim 1, characterized in that, The sliding component includes a sliding body, a limiting post, and a fixing member. The limiting post and the fixing member both protrude from the surface of the sliding body facing away from the fixing seat. The limiting post is inserted into the clamping mechanism, and the fixing member is detachably connected to the clamping mechanism.

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