A sleeve device and sleeve equipment

Abstract

This application provides a sleeve device and a sleeve equipment. The sleeve device includes a sleeve body and a moving module. The sleeve body is provided with a first receiving groove, a second receiving groove, and a wrench insertion port. When the nut is connected to an external bolt, the stud portion of the bolt passes through the first and second receiving grooves. A washer and a spring are fitted in the first receiving groove of the stud portion of the bolt. The nut is connected to the stud portion of the bolt in the second receiving groove. The end of the stud portion of the bolt continuously contacts the moving part. The stud portion of the bolt connects to the nut as the sleeve body rotates until the bolt and nut are clamped with the washer and spring. This allows the moving module to adapt to the connection of bolts and nuts of different lengths. At the same time, the washer and spring are positioned by the first receiving groove, so that the bolt, washer, spring, and nut can be quickly installed and removed. This avoids the need to spend extra time and effort to handle the separation of the sleeve body and the washer, and improves the versatility and disassembly convenience of the sleeve device.

Description

Technical Field

[0001] This utility model relates to the technical field of sleeve devices, and in particular to a sleeve device and sleeve equipment. Background Technology

[0002] With the development of technology, sleeve devices are used to fasten bolts and nuts. In the existing technology, the existing sleeve device includes a sleeve body with a receiving groove for accommodating a washer, a spring, and a nut. During the rotation of the sleeve body, the nut and bolt are tightened. However, it cannot accommodate bolts of various lengths. At the same time, after the spring and washer are flattened, they are easily embedded inside the sleeve body, requiring extra time and effort to separate the sleeve body from the washer. As a result, the existing sleeve device has poor versatility and ease of disassembly. Utility Model Content

[0003] The purpose of this utility model is to provide a sleeve device and a sleeve equipment. The sleeve body is provided with a first receiving groove, a second receiving groove, and a wrench insertion port. The wrench insertion port is used for inserting an external wrench. The first and second receiving grooves are spaced apart from the wrench insertion port. The first and second receiving grooves are connected along the length direction of the sleeve body. The first receiving groove is used to accommodate a washer and a spring. The second receiving groove is used to accommodate a nut. A moving module is built into the second receiving groove. The moving module is provided with a moving part and an elastic part. The elastic part is located in the second receiving groove, contacts the moving part, and applies an elastic force to the moving part. The moving part is movably connected to the second receiving groove and moves within the second receiving groove along the length direction of the sleeve body. The moving part can contact the bolt. The end of the stud portion; when the nut is connected to the external bolt, the stud portion of the bolt passes through the first receiving groove and the second receiving groove. The stud portion of the bolt is fitted with a washer and a spring in the first receiving groove; the stud portion of the bolt is connected to the nut in the second receiving groove. The end of the stud portion of the bolt continuously contacts the moving part. The stud portion of the bolt connects to the nut as the sleeve body rotates until the bolt and nut are clamped with a washer and a spring. This allows the moving module to adapt to the connection of bolts and nuts of different lengths. At the same time, the washer and spring are positioned by the first receiving groove, so that the bolt, washer, spring and nut can be quickly installed and removed. This avoids the need to spend extra time and effort to handle the separation of the sleeve body and the washer, and improves the versatility and disassembly convenience of the sleeve device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sleeve device, comprising: The socket body has a first receiving groove, a second receiving groove, and a wrench insertion port; the wrench insertion port is for inserting an external wrench; the first receiving groove and the second receiving groove are spaced apart from the wrench insertion port; the first receiving groove and the second receiving groove are connected along the length direction of the socket body; the first receiving groove is used to receive a washer and a spring; the second receiving groove is used to receive a nut; A movable module is built into the second receiving groove; the movable module is provided with a movable member and an elastic member, the elastic member is located in the second receiving groove, the elastic member contacts the movable member and applies an elastic force to the movable member; the movable member is movably connected to the second receiving groove and moves along the length direction of the sleeve body in the second receiving groove; the movable member can contact the end of the stud portion of the bolt; When the nut is connected to the external bolt, the stud portion of the bolt passes through the first receiving groove and the second receiving groove. A washer and a spring are fitted inside the first receiving groove. The stud portion of the bolt is connected to the nut inside the second receiving groove. The end of the stud portion of the bolt is in continuous contact with the moving part. The stud portion of the bolt is connected to the nut as the sleeve body rotates until the bolt and nut are clamped with a washer and a spring.

[0005] Optionally, the sleeve device further includes a limiting member connected to the sleeve body and arranged relative to the first receiving groove; the limiting end of the limiting member is located within the first receiving groove and restricts the gasket and spring located in the first receiving groove.

[0006] Optionally, the sleeve body is provided with a threaded hole that communicates with the first receiving groove along its direction toward the first receiving groove; The limiting member is a ball screw, and the limiting end of the limiting member is the ball end of the ball screw, which can extend and retract relative to the first receiving groove.

[0007] Optionally, when the ball end of the ball screw is in the extended state, the ball end of the ball screw has a positional difference relative to the inner wall of the first receiving groove; the ball end of the ball screw and one side wall of the first receiving groove form a positioning space, and position the washer and the spring.

[0008] Optionally, the first receiving groove and the second receiving groove form a stepped groove structure; the groove diameter of the first receiving groove is larger than the groove diameter of the second receiving groove. The nut passes through the first receiving groove and enters the second receiving groove, where it is positioned and connected.

[0009] Optionally, the elastic element is located within the second receiving groove, with one end of the elastic element contacting the moving element and the other end of the elastic element contacting a side wall of the second receiving groove; or, the other end of the elastic element contacts the connecting element connected to a side wall of the second receiving groove.

[0010] Optionally, when the nut is connected to an external bolt, the stud portion of the bolt is threaded to the nut; the end of the stud portion of the bolt moves the movable part as the sleeve body rotates, and compresses the elastic element.

[0011] Optionally, the elastic element is a helical spring; the moving element is a sheet structure.

[0012] Optionally, the portion of the second receiving groove near the first receiving groove is provided with a positioning groove, which connects to the first receiving groove and is used to position the nut.

[0013] To achieve the above objectives, the present invention provides the following technical solution: a sleeve device, including the aforementioned sleeve assembly.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a sleeve device and a sleeve equipment. The sleeve body has a first receiving groove, a second receiving groove, and a wrench insertion port. The wrench insertion port is for inserting an external wrench. The first and second receiving grooves are spaced apart from the wrench insertion port. The first and second receiving grooves are connected along the length of the sleeve body. The first receiving groove is used to accommodate a washer and a spring. The second receiving groove is used to accommodate a nut. A moving module is built into the second receiving groove. The moving module has a moving part and an elastic part. The elastic part is located in the second receiving groove, contacts the moving part, and applies an elastic force to the moving part. The moving part is movably connected to the second receiving groove and moves within the second receiving groove along the length of the sleeve body. The moving part can contact the stud of the bolt. At the end of the sleeve, when the nut is connected to the external bolt, the stud portion of the bolt passes through the first and second receiving grooves. A washer and a spring are fitted inside the first receiving groove of the stud portion of the bolt. The nut is connected to the stud portion of the bolt inside the second receiving groove. The end of the stud portion of the bolt continuously contacts the moving part. The stud portion of the bolt connects to the nut as the sleeve body rotates until the bolt and nut are clamped with a washer and a spring. This allows the moving module to adapt to the connection of bolts and nuts of different lengths. At the same time, the washer and spring are positioned by the first receiving groove, which enables the bolt, washer, spring and nut to be quickly installed and removed. This avoids the need to spend extra time and effort to handle the separation of the sleeve body and the washer, and improves the versatility and disassembly convenience of the sleeve device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0017] Figure 1 A schematic diagram of a sleeve device according to an embodiment of this application is shown.

[0018] Figure 2 A schematic diagram of the internal structure of a sleeve device according to an embodiment of this application is shown.

[0019] Figure 3 A partial schematic diagram of a sleeve device according to an embodiment of this application is shown.

[0020] Figure 4 A diagram showing the usage state of a sleeve device according to an embodiment of this application is illustrated.

[0021] Figure 5 A partial cross-sectional view of a sleeve device according to an embodiment of this application is shown.

[0022] Figure Labels 100. Sleeve device; 10. Sleeve body; 10a. First receiving groove; 10b. Second receiving groove; 10c. Wrench insertion port; 10d. Positioning groove; 20. Moving module; 21. Moving component; 22. Elastic component; 30. Limiting components. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] Please refer to the attached document. Figures 1-5 This application provides a sleeve device 100, which is applied to a sleeve device and is used to fasten bolts and nuts.

[0025] Please refer to the attached document. Figures 1-5In this embodiment, the sleeve device 100 includes a sleeve body 10 and a moving module 20. The sleeve body 10 is provided with a first receiving groove 10a, a second receiving groove 10b, and a wrench insertion port 10c. The wrench insertion port 10c is used for inserting an external wrench. The first receiving groove 10a and the second receiving groove 10b are spaced apart from the wrench insertion port 10c. The first receiving groove 10a and the second receiving groove 10b are connected along the length direction of the sleeve body 10. The first receiving groove 10a is used to accommodate a washer and a spring. The second receiving groove 10b is used to accommodate a nut. The moving module 20 is built into the second receiving groove 10b. The moving module 20 is provided with a moving member 21 and an elastic member 22. The elastic member 22 is located in the second receiving groove 10b, contacts the moving member 21, and applies an elastic force to the moving member 21. The moving member 21 is movably connected to the second receiving groove 10b and is located within the second receiving groove 10b. The moving part 21 can contact the end of the stud portion of the bolt when the nut is connected to the external bolt. The stud portion of the bolt passes through the first receiving groove 10a and the second receiving groove 10b. The stud portion of the bolt is fitted with a washer and a spring in the first receiving groove 10a. The stud portion of the bolt is connected to the nut in the second receiving groove 10b. The end of the stud portion of the bolt is in continuous contact with the moving part 21. The stud portion of the bolt is connected to the nut as the sleeve body 10 rotates until the bolt and nut are fitted with a washer and a spring. This allows the moving module 20 to adapt to the connection of bolts and nuts of different lengths. At the same time, the washer and spring are positioned by the first receiving groove 10a, so that the bolt, washer, spring and nut can be quickly installed and removed. This avoids the need to spend extra time and effort to handle the separation of the sleeve body 10 and the washer, and improves the versatility and disassembly convenience of the sleeve device 100.

[0026] Please refer to the attached document. Figures 1-5 In this embodiment, the socket body 10 is provided with a first receiving groove 10a, a second receiving groove 10b, and a wrench insertion port 10c. The wrench insertion port 10c is located at the right end of the socket body 10, the first receiving groove 10a is located at the left end of the socket body 10, and the second receiving groove 10b is located at the middle end of the socket body 10. The wrench insertion port 10c is used for inserting an external wrench so that the external wrench can be connected to the socket body 10 through the wrench insertion port 10c, thereby facilitating the external wrench to drive the socket body 10 to rotate. At the same time, when performing live electrical work, the operator does not need to wear protective gloves during the tightening process, which reduces the difficulty of operation and improves work efficiency. The first receiving groove 10a and the second receiving groove 10b are both spaced apart from the wrench insertion port 10c; the first receiving groove 10a and the second receiving groove 10b are connected along the length of the sleeve body 10; the first receiving groove 10a is used to receive the washer and the spring; the second receiving groove 10b is used to receive the nut; so that the washer, the spring and the nut can all enter the inside of the sleeve body 10.

[0027] The moving module 20 is built into the second receiving groove 10b so that the moving module 20 can make full use of the space of the second receiving groove 10b; the moving module 20 is provided with a moving member 21 and an elastic member 22. The elastic member 22 is located in the second receiving groove 10b, the elastic member 22 contacts the moving member 21 and applies an elastic force to the moving member 21; the moving member 21 is movably connected to the second receiving groove 10b and moves along the length direction of the sleeve body 10 in the second receiving groove 10b so as to adjust the position of the moving member 21 relative to the second receiving groove 10b; the moving member 21 can contact the end of the stud portion of the bolt.

[0028] When the nut is connected to the external bolt, the stud portion of the bolt passes through the first receiving groove 10a and the second receiving groove 10b. A washer and a spring are fitted inside the first receiving groove 10a. The nut is connected to the stud portion of the bolt inside the second receiving groove 10b. The end of the stud portion of the bolt continuously contacts the moving part 21. The stud portion of the bolt connects to the nut as the sleeve body 10 rotates until the bolt and nut are clamped with the washer and spring. This allows the moving module 20 to accommodate the connection of bolts and nuts of different lengths. At the same time, the washer and spring are positioned by the first receiving groove 10a, which enables the bolt, washer, spring and nut to be quickly installed and removed. This avoids the need to spend extra time and effort to handle the separation of the sleeve body 10 and the washer, and improves the versatility and disassembly convenience of the sleeve device 100.

[0029] Please refer to the attached document. Figures 1-5 In this embodiment of the application, the sleeve device 100 further includes a limiting member 30, which is connected to the sleeve body 10 and arranged relative to the first receiving groove 10a. The limiting end of the limiting member 30 is located in the first receiving groove 10a and restricts the gasket and spring located in the first receiving groove 10a, so that the sleeve body 10 can achieve positioning connection of the gasket and spring relative to the first receiving groove 10a through the limiting member 30, ensuring the positional accuracy of the gasket and spring relative to the first receiving groove 10a and preventing the gasket and spring from accidentally disengaging relative to the first receiving groove 10a.

[0030] Please refer to the attached document. Figures 1-5In this embodiment, the sleeve body 10 is provided with a threaded hole, which communicates with the first receiving groove 10a along its direction toward the first receiving groove 10a; the limiting member 30 is screwed into the threaded hole so that the limiting member 30 can be connected to the sleeve body 10. The limiting member 30 is a ball screw, and the limiting end of the limiting member 30 is the ball end of the ball screw. The ball end can extend and retract relative to the first receiving groove 10a so as to adjust the position of the ball end relative to the first receiving groove 10a, thereby facilitating the ball end to abut against the gasket and spring in the first receiving groove 10a, so as to realize that the ball end applies force to the gasket and spring in the first receiving groove 10a, and ensures the position of the gasket and spring relative to the first receiving groove 10a.

[0031] Please refer to the attached document. Figures 1-5 In this embodiment, when the ball end of the ball screw is in the extended state, the ball end of the ball screw has a positional difference relative to the inner wall of the first receiving groove 10a; the ball end of the ball screw and one side wall of the first receiving groove 10a form a positioning space and position the washer and spring, so that the ball end abuts against the washer and spring in the first receiving groove 10a, so that the ball end applies a force to the washer and spring in the first receiving groove 10a, ensuring the position of the washer and spring relative to the first receiving groove 10a.

[0032] Please refer to the attached document. Figures 1-4 In this embodiment of the application, the first receiving groove 10a and the second receiving groove 10b form a stepped groove structure; the groove diameter of the first receiving groove 10a is larger than the groove diameter of the second receiving groove 10b; so that the inner contour of the first receiving groove 10a and the inner contour of the second receiving groove 10b can be adapted to the gasket, the spring and the nut respectively, and the gasket and the spring are prevented from entering the second receiving groove 10b.

[0033] The nut enters the second receiving groove 10b through the first receiving groove 10a and is positioned and connected with the second receiving groove 10b, ensuring the positional accuracy of the nut relative to the second receiving groove 10b. The second receiving groove 10b is hexagonal so that the inner contour of the second receiving groove 10b can be adapted to the outer contour of the nut, thereby facilitating the inner sidewall of the second receiving groove 10b to restrict the nut, and thus facilitating the sleeve body 10 to fit the nut for tightening operation.

[0034] Please refer to the attached document. Figures 1-4In this embodiment, the elastic member 22 is located within the second receiving groove 10b, with one end of the elastic member 22 contacting the moving member 21 and the other end of the elastic member 22 contacting a side wall of the second receiving groove 10b; or, the other end of the elastic member 22 contacts a connecting member connected to a side wall of the second receiving groove 10b, so that the elastic member 22 is fixed within the second receiving groove 10b, and the connecting member moves elastically relative to the second receiving groove 10b under the action of the elastic member 22. When there is no external force acting on the connecting member, the connecting member moves closer to the first receiving groove 10a under the action of the elastic member 22, and when the connecting member is subjected to pressure, the connecting member moves away from the first receiving groove 10a.

[0035] Please refer to the attached document. Figures 1-4 In this embodiment, when the nut is connected to an external bolt, the stud portion of the bolt and the nut are threaded together. The end of the stud portion of the bolt moves the movable member 21 as the sleeve body 10 rotates, compressing the elastic member 22. This allows the movable member 21 and the elastic member 22 to accommodate connections of bolts and nuts of different lengths, improving the versatility of the sleeve device 100. Optionally, the elastic member 22 is a helical spring; the movable member 21 is a sheet structure.

[0036] Please refer to the attached document. Figures 1-4 In this embodiment of the application, a positioning groove 10d is provided in the portion of the second receiving groove 10b near the first receiving groove 10a. The positioning groove 10d is connected to the first receiving groove 10a and is used to position the nut so that the nut can enter the positioning groove 10d through the first receiving groove 10a. The positioning groove 10d restricts the range of motion of the nut and prevents the nut from rotating relative to the second receiving groove 10b, so that the sleeve body 10 can drive the nut to tighten relative to the bolt.

[0037] Operation Flow: The worker inserts the nut into the positioning groove 10d via the first receiving groove 10a, thus placing the nut into the sleeve body 10. Next, the spring and washer are inserted into the first receiving groove 10a. When the washer is pressed in, the limiting member 30 is triggered, causing the ball end of the ball screw to retract, and the washer enters the sleeve body 10. Simultaneously, the limiting member 30 locks the washer in place. At this point, the flat washer, spring washer, and nut are arranged sequentially within the sleeve body 10. With the activation of the external wrench, the sleeve body 10 rotates the nut, sequentially installing the nut, spring washer, and flat washer onto the bolt to be assembled, thus completing the bolt and nut connection. In a second embodiment of the application, a sleeve device includes a sleeve assembly 100, which is part of a sleeve device used to fasten bolts and nuts of different lengths.

[0038] At this time, the sleeve device 100 includes a sleeve body 10 and a moving module 20. The sleeve body 10 is provided with a first receiving groove 10a, a second receiving groove 10b, and a wrench insertion port 10c. The wrench insertion port 10c is used for inserting an external wrench. The first receiving groove 10a and the second receiving groove 10b are spaced apart from the wrench insertion port 10c. The first receiving groove 10a and the second receiving groove 10b are connected along the length direction of the sleeve body 10. The first receiving groove 10a is used to receive a washer and a spring. The second receiving groove 10b is used to receive a nut. The moving module 20 is built into the second receiving groove 10b. The moving module 20 is provided with a moving member 21 and an elastic member 22. The elastic member 22 is located in the second receiving groove 10b, contacts the moving member 21, and applies an elastic force to the moving member 21. The moving member 21 is movably connected to the second receiving groove 10b and moves along the second receiving groove 10b. The sleeve body 10 moves along its length; the moving part 21 can contact the end of the stud portion of the bolt; when the nut is connected to an external bolt, the stud portion of the bolt passes through the first receiving groove 10a and the second receiving groove 10b, and a washer and a spring are fitted in the first receiving groove 10a; the stud portion of the bolt is connected to the nut in the second receiving groove 10b, and the end of the stud portion of the bolt continuously contacts the moving part 21. The stud portion of the bolt is connected to the nut as the sleeve body 10 rotates until the bolt and nut are clamped with a washer and a spring, so that the moving module 20 can adapt to the connection of bolts and nuts of different lengths. At the same time, the washer and spring are positioned by the first receiving groove 10a, so that the bolt, washer, spring and nut can be quickly installed and removed, avoiding the need to spend extra time and effort to handle the separation of the sleeve body 10 and the washer, and improving the versatility and disassembly convenience of the sleeve equipment.

[0039] Furthermore, the sleeve device 100 also includes a limiting member 30, which is connected to the sleeve body 10 and arranged relative to the first receiving groove 10a. The limiting end of the limiting member 30 is located in the first receiving groove 10a and restricts the gasket and spring located in the first receiving groove 10a, so that the sleeve body 10 can achieve positioning connection of the gasket and spring relative to the first receiving groove 10a through the limiting member 30, ensuring the positional accuracy of the gasket and spring relative to the first receiving groove 10a and preventing the gasket and spring from accidentally disengaging relative to the first receiving groove 10a.

[0040] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a sleeve device 100 and a sleeve equipment. The sleeve body 10 is provided with a first receiving groove 10a, a second receiving groove 10b, and a wrench insertion port 10c. The wrench insertion port 10c is used for inserting an external wrench. The first receiving groove 10a and the second receiving groove 10b are spaced apart from the wrench insertion port 10c. The first receiving groove 10a and the second receiving groove 10b are connected along the length direction of the sleeve body 10. The first receiving groove 10a is used to receive a washer and a spring. The second receiving groove 10b is used to receive a nut. A moving module 20 is built into the second receiving groove 10b. The moving module 20 is provided with a moving member 21 and an elastic member 22. The elastic member 22 is located in the second receiving groove 10b, contacts the moving member 21, and applies an elastic force to the moving member 21. The moving member 21 is movably connected to the second receiving groove 10b and moves along the sleeve body within the second receiving groove 10b. The sleeve body 10 moves along its length; the moving part 21 can contact the end of the stud portion of the bolt; when the nut is connected to the external bolt, the stud portion of the bolt passes through the first receiving groove 10a and the second receiving groove 10b, and the stud portion of the bolt is fitted with a washer and a spring in the first receiving groove 10a; the stud portion of the bolt is connected to the nut in the second receiving groove 10b, and the end of the stud portion of the bolt continuously contacts the moving part 21. The stud portion of the bolt is connected to the nut as the sleeve body 10 rotates until the bolt and nut are fitted with a washer and a spring, so that the moving module 20 can adapt to the connection of bolts and nuts of different lengths. At the same time, the washer and spring are positioned by the first receiving groove 10a, so that the bolt, washer, spring and nut can be quickly installed and removed, avoiding the need to spend extra time and effort to handle the separation of the sleeve body 10 and the washer, and improving the versatility and disassembly convenience of the sleeve device 100.

[0041] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0042] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0043] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sleeve device, characterized in that include: The sleeve body is provided with a first receiving groove, a second receiving groove, and a wrench insertion port; The wrench insertion port is for inserting an external wrench; the first receiving groove and the second receiving groove are both spaced apart from the wrench insertion port; the first receiving groove and the second receiving groove are connected along the length of the sleeve body; the first receiving groove is used to receive a washer and a spring; the second receiving groove is used to receive a nut; A movable module is built into the second receiving groove; the movable module is provided with a movable member and an elastic member, the elastic member is located in the second receiving groove, the elastic member contacts the movable member and applies an elastic force to the movable member; the movable member is movably connected to the second receiving groove and moves along the length direction of the sleeve body in the second receiving groove; the movable member can contact the end of the stud portion of the bolt; When the nut is connected to the external bolt, the stud portion of the bolt passes through the first receiving groove and the second receiving groove. A washer and a spring are fitted inside the first receiving groove. The stud portion of the bolt is connected to the nut inside the second receiving groove. The end of the stud portion of the bolt is in continuous contact with the moving part. The stud portion of the bolt is connected to the nut as the sleeve body rotates until the bolt and nut are clamped with a washer and a spring.

2. The sleeve device of claim 1, wherein, The sleeve device further includes a limiting member connected to the sleeve body and arranged relative to the first receiving groove; the limiting end of the limiting member is located in the first receiving groove and restricts the gasket and spring located in the first receiving groove.

3. The sleeve device of claim 2, wherein, The sleeve body is provided with a threaded hole, which connects to the first receiving groove along its direction toward the first receiving groove; The limiting member is a ball screw, and the limiting end of the limiting member is the ball end of the ball screw, which can extend and retract relative to the first receiving groove.

4. The sleeve device of claim 3, wherein, When the ball end of the ball screw is in the extended state, the ball end of the ball screw has a positional difference relative to the inner side wall of the first receiving groove; the ball end of the ball screw and one side wall of the first receiving groove form a positioning space, and position the washer and spring.

5. The sleeve device of claim 1, wherein, The first receiving groove and the second receiving groove form a stepped groove structure; the groove diameter of the first receiving groove is larger than the groove diameter of the second receiving groove; The nut passes through the first receiving groove and enters the second receiving groove, where it is positioned and connected.

6. The sleeve device of claim 5, wherein, The elastic element is located in the second receiving groove, with one end of the elastic element contacting the moving element and the other end of the elastic element contacting a side wall of the second receiving groove; or, the other end of the elastic element contacts a connecting element connected to a side wall of the second receiving groove.

7. The sleeve device of claim 6, wherein, When the nut is connected to the external bolt, the stud portion of the bolt is threaded to the nut; the end of the stud portion of the bolt moves the moving part as the sleeve body rotates, and compresses the elastic element.

8. The sleeve device of claim 7, wherein, The elastic element is a helical spring; the movable element is a sheet structure.

9. The sleeve device of claim 6, wherein, The portion of the second receiving groove near the first receiving groove is provided with a positioning groove, which is connected to the first receiving groove and is used to position the nut.

10. A sleeve apparatus, characterized by Includes the sleeve device as described in any one of claims 1 to 9.

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