Locking nut convenient to disassemble

Abstract

The utility model discloses a locking nut convenient to dismantle, which relates to the technical field of locking nuts and comprises an outer sleeve and an inner sleeve, a threaded cylinder is arranged on the inner wall of the inner sleeve, a nylon component is arranged at the top of the threaded cylinder, a driving block is arranged on the inner wall of the outer sleeve, and a stop block is arranged outside the inner sleeve. The driving block pushes the inner sleeve to rotate, when the threaded cylinder makes contact with the bottom of the bolt and then continues to rotate, the threaded cylinder drives the conical nylon assembly to move downwards, the movable ring extrudes and deforms the conical nylon assembly, the inner wall of the nylon assembly is made to be tightly attached to the thread of the bolt, and the anti-loosening effect is enhanced through elastic friction; the driving block is clamped into the clamping groove to drive the inner sleeve to rotate reversely, the movable ring slides into the groove to relieve limiting of the nylon assembly, the elastic recovery of the movable ring enables threads to be disengaged from contact, the dismounting resistance is reduced, the nut can be screwed out easily by continuously rotating the outer sleeve, and through the collaborative design of magnetic attraction fixing and elastic deformation, the problem that a traditional locking nut is difficult to dismount is solved. And thread damage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of locking nut technology, specifically a locking nut that is easy to disassemble. Background Technology

[0002] Lock nuts are fasteners that enhance the reliability of threaded connections through special structural designs or additional anti-loosening devices. They are mainly used to prevent bolts or screws from loosening under vibration, impact, or alternating loads. Their core principle is to improve self-locking performance by increasing the friction between threads, mechanical engagement, or elastic deformation. Common types include double-nut stacking, nylon inserts, slotted ends, and Spiral. Lock nuts are widely used in machinery, automotive, aerospace, and other fields, playing a key role, especially in scenarios requiring long-term stable connections. The material is selected according to the working conditions to adapt to different temperature and environmental requirements.

[0003] In the prior art, after using a lock nut, the nut will lock the screw. However, when disassembling the nut, the locking mechanism on the nut is very firmly connected to the screw. Therefore, it is very difficult to disassemble the nut by force. In fact, if too much force is used, the nut itself may be damaged, thus affecting the use of the nut. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a lock nut that is easy to disassemble, so as to solve the technical problem that when disassembling the lock nut, the locking mechanism is firmly connected to the bolt, making it difficult to disassemble the nut, and forcibly disassembling it may cause damage to the nut.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lock nut that is easy to disassemble, comprising an outer sleeve and an inner sleeve, wherein a threaded cylinder is movably connected to the inner wall of the inner sleeve, and a nylon assembly is fixedly connected to the top of the threaded cylinder, and the nylon assembly is in a hollow conical shape; a driving block is fixedly connected to the inner wall of the outer sleeve, and a blocking block is fixedly connected to the outside of the inner sleeve, wherein the inclined surface of the driving block and the inclined surface of the blocking block are engaged, and both the inclined surface of the driving block and the inclined surface of the blocking block are equipped with strong magnets.

[0006] By adopting the above technical solution, this utility model achieves conventional locking by placing the nut on the bolt and rotating the outer sleeve clockwise with a tool. The internal drive block pushes the inner sleeve to rotate, causing the threaded sleeve to engage with the bolt. When the threaded sleeve contacts the bottom of the bolt, it continues to rotate, and the threaded sleeve moves down along the sliding groove via a slider, causing the tapered nylon component to move downward. The movable ring compresses and deforms it, making the inner wall of the nylon tightly adhere to the bolt thread. The elastic friction enhances the anti-loosening effect. The strong magnets built into the drive block and the stop block form a magnetic attraction to fix the nut and prevent it from accidentally loosening. For disassembly, rotating the outer sleeve counterclockwise and applying a little force to separate the magnetic attraction structure causes the drive block to engage in the engagement groove, causing the inner sleeve to reverse. At this time, the movable ring slides into the groove, releasing the restriction on the nylon component. Its elastic recovery causes the thread to disengage, greatly reducing the disassembly resistance. Continuing to rotate the outer sleeve allows the nut to be easily unscrewed. This structure, through the synergistic design of magnetic attraction and elastic deformation, ensures locking reliability and solves the problem of difficult disassembly of traditional locking nuts, avoiding thread damage.

[0007] Furthermore, a movable ring is fixedly connected to the top of the inner side of the outer sleeve, and a movable groove is opened at the top of the inner sleeve, with the movable ring and the movable groove having a matching cross-sectional size. A locking groove is opened on the outer wall of the inner sleeve, with the locking groove matching the cross-sectional size of the driving block.

[0008] By adopting the above technical solution, when it is necessary to disassemble the nut, the user can use an external tool to put on the outer sleeve and rotate it counterclockwise. The drive block will rotate counterclockwise with the outer sleeve until it reaches the top of the engagement groove. Then, the drive block will be engaged in the engagement groove. At the same time, the outer sleeve will move on the inner sleeve, so that the movable ring will slide into the movable groove, thereby releasing the restriction on the nylon component. The nylon component will return to its original shape under its own elasticity, thereby disengaging from the thread on the bolt, thus reducing the friction between the nut and the bolt and facilitating the removal of the nut.

[0009] Furthermore, the inner sleeve has two sets of sliding grooves, and two sets of sliders are fixedly connected to the outer wall of the threaded cylinder. The sliding grooves and sliders are matched in size, and the threaded cylinder is slidably connected to the inner sleeve through the cooperation of the sliding grooves and sliders.

[0010] By adopting the above technical solution, after the nut is rotated to the bottom of the bolt or contacts the parts on the bolt, the outer sleeve is then rotated. The threaded sleeve continues to rotate, and at the same time, the threaded sleeve moves inside the inner sleeve through the cooperation of the slider and the sliding groove until the threaded sleeve contacts the bottom of the bolt.

[0011] Furthermore, the inner wall of the threaded cylinder is provided with internal threads, and the threaded cylinder is connected to the bolt threadedly through thread engagement.

[0012] By adopting the above technical solution, the internal thread of the threaded cylinder will mesh with the external thread on the bolt, thereby causing the integral nut to rotate on the bolt, and the overall tightening state is the same as the tightening state of a normal nut.

[0013] In summary, this utility model has the following beneficial effects: By placing the nut on the bolt and rotating the outer sleeve clockwise with a tool, the internal drive block pushes the inner sleeve to rotate, causing the threaded sleeve to engage with the bolt, achieving conventional locking. When the threaded sleeve contacts the bottom of the bolt, it continues to rotate, moving downwards along the sliding groove via a slider, causing the tapered nylon assembly to move downwards. The movable ring deforms it, making the inner wall of the nylon tightly adhere to the bolt thread. Elastic friction enhances the anti-loosening effect. The strong magnets built into the drive block and the stop block form a magnetic attraction, preventing the nut from accidentally loosening. For disassembly, rotating the outer sleeve counterclockwise and applying slight force separates the magnetic attraction structure. The drive block then engages in the engagement groove, causing the inner sleeve to reverse. At this point, the movable ring slides into the groove, releasing the nylon assembly. Its elastic recovery causes the thread to disengage, significantly reducing disassembly resistance. Continuing to rotate the outer sleeve allows the nut to be easily unscrewed. This structure, through the synergistic design of magnetic attraction and elastic deformation, ensures locking reliability and solves the problem of difficult disassembly of traditional locking nuts, avoiding thread damage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the outer sleeve of this utility model;

[0016] Figure 3 This is a schematic diagram of the inner sleeve of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of this utility model in its uninstalled state;

[0018] Figure 5 This is a structural diagram of the present invention in its disassembled state;

[0019] Figure 6 This utility model Figure 4 Enlarged view of point A;

[0020] Figure 7 This utility model Figure 4 Enlarged view of point B.

[0021] In the diagram: 1. Outer sleeve; 2. Inner sleeve; 3. Threaded sleeve; 4. Nylon assembly; 5. Drive block; 6. Stop block; 7. Engaging groove; 8. Movable ring; 9. Movable groove; 10. Sliding groove; 11. Slider. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The embodiments of this utility model will be described below based on its overall structure.

[0024] An easy-to-remove lock nut, such as Figure 1-7 As shown, the device includes an outer sleeve 1 and an inner sleeve 2. A threaded cylinder 3 is movably connected to the inner wall of the inner sleeve 2. A nylon component 4 is fixedly connected to the top of the threaded cylinder 3. The nylon component 4 is hollow and conical in shape. The inner wall of the threaded cylinder 3 has internal threads. The threaded cylinder 3 is threaded to the bolt through thread engagement. When the threaded cylinder 3 moves within the inner sleeve 2, it will drive the nylon component 4 to move downwards together. After the nylon component 4 moves, it will be limited by the movable ring 8 on the inner wall of the outer sleeve 1. Since the nylon component 4 is conical in shape, and because the nylon component 4 itself has a certain elasticity, it will be internally squeezed and deformed by the movable ring 8 after moving. This will make the inner wall of the nylon component 4 and the external threads of the bolt's outer wall fit tightly together, increasing the friction between the nut and the bolt and ensuring the stability of the nut on the bolt.

[0025] Furthermore, a drive block 5 is fixedly connected to the inner wall of the outer sleeve 1, and a stop block 6 is fixedly connected to the outside of the inner sleeve 2. The inclined surface of the drive block 5 and the inclined surface of the stop block 6 are matched, and both the inclined surface of the drive block 5 and the inclined surface of the stop block 6 are equipped with strong magnets. The user can use an external tool to put it on the outer sleeve 1. At this time, the user can turn the outer sleeve 1 clockwise with the external tool. The drive block 5 inside the outer sleeve 1 will press against the stop block 6 on the inner sleeve 2, thereby driving the inner sleeve 2 to rotate, which in turn causes the threaded cylinder 3 to rotate. The inner wall of the threaded cylinder 3 is threaded. At this time, the internal thread of the threaded cylinder 3 will mesh with the external thread on the bolt, thereby causing the overall nut to rotate on the bolt. The overall turning state is the same as the turning state of a normal nut.

[0026] In the example, a movable ring 8 is fixedly connected to the top of the inner side of the outer sleeve 1, and a movable groove 9 is opened at the top of the inner sleeve 2. The movable ring 8 and the movable groove 9 are matched in cross-sectional size. A locking groove 7 is opened on the outer wall of the inner sleeve 2, and the locking groove 7 is matched in cross-sectional size with the drive block 5. When it is necessary to remove the nut, the user can put an external tool on the outer sleeve 1 and rotate it counterclockwise. The drive block 5 will rotate counterclockwise with the outer sleeve 1 until it reaches the top of the locking groove 7. Then, the drive block 5 is locked into the locking groove 7. At the same time, the outer sleeve 1 will move on the inner sleeve 2, so that the movable ring 8 slides into the movable groove 9, thereby releasing the restriction on the nylon component 4. The nylon component 4 will return to its original shape under its own elasticity, thereby disengaging from the thread on the bolt, thereby reducing the friction between the nut and the bolt, and facilitating the removal of the nut.

[0027] In the example, the inner sleeve 2 has two sets of sliding grooves 10, and the outer wall of the threaded cylinder 3 is fixedly connected to two sets of sliders 11. The sliding grooves 10 and sliders 11 are matched in size, and the threaded cylinder 3 is slidably connected to the inner sleeve 2 through the cooperation of the sliding grooves 10 and sliders 11. When the nut is rotated to the bottom of the bolt or contacts the parts on the bolt, the outer sleeve 1 is rotated, and the threaded cylinder 3 will continue to rotate. At the same time, the threaded cylinder 3 will move inside the inner sleeve 2 through the cooperation of the sliders 11 and the sliding grooves 10 until the threaded cylinder 3 contacts the bottom of the bolt.

[0028] The working principle of this utility model is as follows: When in use, first put the overall locking nut on the bolt. At this time, the user can use an external tool to put it on the outer sleeve 1. Then, by turning the outer sleeve 1 clockwise with the external tool, the driving block 5 inside the outer sleeve 1 will press against the blocking block 6 on the inner sleeve 2, thereby driving the inner sleeve 2 to rotate, and thus causing the threaded cylinder 3 to rotate.

[0029] The inner wall of the threaded cylinder 3 is threaded. At this time, the internal thread of the threaded cylinder 3 will mesh with the external thread on the bolt, so that the whole nut will rotate on the bolt. The overall tightening state is the same as the tightening state of a normal nut.

[0030] When the nut is rotated to the bottom of the bolt or contacts the parts on the bolt, the outer sleeve 1 is rotated, and the threaded sleeve 3 continues to rotate. At the same time, the threaded sleeve 3 moves inside the inner sleeve 2 through the cooperation of the slider 11 and the sliding groove 10 until the threaded sleeve 3 contacts the bottom of the bolt.

[0031] When the threaded cylinder 3 moves within the inner sleeve 2, it will cause the nylon assembly 4 to move downwards together. After the nylon assembly 4 moves, it will be limited by the movable ring 8 on the inner wall of the outer sleeve 1. The nylon assembly 4 is conical in shape. Since the nylon assembly 4 itself has a certain elasticity, after the nylon assembly 4 moves, it will be internally squeezed by the movable ring 8 to deform, so that the inner wall of the nylon assembly 4 and the external thread of the bolt outer wall can be tightly fitted, increasing the friction between the nut and the bolt and ensuring the stability of the nut on the bolt.

[0032] When the outer sleeve 1 is rotated using a tool, the drive block 5 and the stop block 6 are in contact. Both the drive block 5 and the stop block 6 are equipped with powerful magnets, so that the outer sleeve 1 will not easily fall off the inner sleeve 2 after the nut is tightened.

[0033] When it is necessary to remove the nut, the user can use an external tool to put on the outer sleeve 1 and rotate it counterclockwise. First, apply a little force to separate the driving block 5 from the strong magnet on the blocking block 6, release the restriction between the outer sleeve 1 and the inner sleeve 2, and then the driving block 5 will rotate counterclockwise with the outer sleeve 1 until it reaches the top of the engagement groove 7, and then the driving block 5 will be engaged in the engagement groove 7.

[0034] The outer sleeve 1 will move on the inner sleeve 2 at the same time, so that the movable ring 8 will slide into the movable groove 9, thereby releasing the restriction on the nylon component 4. The nylon component 4 will return to its original shape under its own elasticity, thereby disengaging from the thread on the bolt, thus reducing the friction between the nut and the bolt and facilitating the removal of the nut.

[0035] At this point, continue to rotate the outer sleeve 1 counterclockwise. The drive block 5 will cause the inner sleeve 2 to rotate counterclockwise through the engagement groove 7, thereby driving the threaded sleeve 3 to rotate counterclockwise through the slider 11 and the sliding groove 10. This allows the entire nut to be removed from the bolt. During the removal process, since the nylon component 4 is not disengaged from the threads on the outer surface of the bolt, the nut can be easily removed.

[0036] The above structure can solve the technical problem that when disassembling the lock nut, the locking mechanism is firmly connected to the bolt, making the nut difficult to remove and forcibly removing it may damage the nut.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A lock nut for facilitating disassembly comprising an outer sleeve (1) and an inner sleeve (2), characterized in that: The inner sleeve (2) is movably connected with a threaded cylinder (3) on the inner wall, the top of the threaded cylinder (3) is fixedly connected with a nylon assembly (4), the nylon assembly (4) is in a hollow conical shape as a whole, the inner wall of the outer sleeve (1) is fixedly connected with a driving block (5), the outer part of the inner sleeve (2) is fixedly connected with a blocking block (6), the slope of the driving block (5) is matched with the slope of the blocking block (6), and the slopes of the driving block (5) and the blocking block (6) are both installed with powerful magnets.

2. The breakaway lock nut of claim 1, wherein: The top of the inner wall of the outer sleeve (1) is fixedly connected with a movable ring (8), the top of the inner sleeve (2) is provided with a movable groove (9), and the movable ring (8) is matched with the movable groove (9) in section size.

3. The breakaway lock nut of claim 1, wherein: The outer wall of the inner sleeve (2) is provided with a clamping groove (7), and the clamping groove (7) is matched with the driving block (5) in section size.

4. The breakaway lock nut of claim 1, wherein: The inner sleeve (2) is provided with two groups of sliding grooves (10), and the outer wall of the threaded cylinder (3) is fixedly connected with two groups of sliding blocks (11).

5. The breakaway lock nut of claim 4, wherein: The sliding groove (10) is matched with the sliding block (11) in size, and the threaded cylinder (3) is slidably connected with the inner sleeve (2) through the cooperation of the sliding groove (10) and the sliding block (11).

6. The breakaway lock nut of claim 1, wherein: The inner wall of the threaded cylinder (3) is provided with internal threads, and the threaded cylinder (3) is connected with the bolt through thread engagement.

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