Anti-loosening rod end nut device
By setting up a fixing table, nylon ring and rubber ring in the rod end nut device, the automatic locking effect is achieved, solving the problem of loosening of traditional nuts under vibration and temperature changes, and improving the mechanical strength and anti-loosening effect of the equipment.
Patent Information
- Application Number
- CN202420907670.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-04-29
AI Technical Summary
Traditional rod end nuts are prone to loosening under factors such as vibration and temperature changes, resulting in the failure of the fastener.
An anti-loosening rod end nut device is designed. By setting up structures such as the first nut, the second nut and the fixing table, combined with the nylon ring and the rubber ring as the connecting mechanism, an interference fit is generated during the locking process to achieve an automatic locking effect.
It effectively improves the stability of the bolt fastener, ensures the connection effect between the bolt body and the nut, enhances the mechanical strength of the equipment, and prevents the nut from loosening under strong vibration conditions.
Smart Images
Figure CN222772469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nut equipment, in particular to an anti-loosening rod end nut device. Background Art
[0002] The rod end nut is a fastener. Traditional threaded fasteners all use one-way threaded bolts, which are used with single or double nuts to fasten the fastened objects. They can be self-locking when stationary.
[0003] During the long-term use of the rod end nut, the bolt may become loose due to factors such as vibration and temperature changes. In order to solve these problems, it is usually necessary to add a fastener locking device. The traditional locking device consists of ordinary bolts and spring washers. When the spring heat ring is under pressure for a long time, it will be fatigued and lose its elasticity, so it cannot play a locking role. Under high-frequency strong vibration and long-term working conditions, the metal will fatigue, which will affect the tension of the metal. The nut and the bolt will have a frequency difference, which will cause the nut to rotate in the opposite direction of the thread, causing the nut to loosen. To this end, we propose an anti-loosening rod end nut device. Utility Model Content
[0004] The utility model aims to provide a rod end nut device for preventing loosening, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rod end nut device for preventing loosening, comprising a first nut and a second nut, a fixing platform is arranged between the first nut and the second nut, bosses are symmetrically distributed on both sides of the fixing platform, the bosses are correspondingly clamped in the grooves on the sides of the first nut and the second nut, a bolt body is screwed in the threaded holes of the first nut and the second nut, and a nylon ring is installed in the threaded groove on the outer side of the bolt body.
[0006] In the above solution, the bolt body is a right-hand threaded rod.
[0007] In the above solution, a truncated cone portion is provided on the side surface of the fixing platform, and the truncated cone portion is correspondingly clamped in the circular hole on the side surface of the first nut.
[0008] In the above solution, a bolt head is provided at the end of the bolt body.
[0009] In the above solution, a washer is arranged between the bolt head and the first nut.
[0010] In the above solution, a rubber ring is arranged outside the nylon ring.
[0011] In the above solution, the exteriors of the first nut and the second nut are coated with an anti-rust coating.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the anti-loosening rod end nut device has a simple and reasonable structural design and is highly practical. The stability of the bolt fastener is further improved by setting the first nut, the second nut and the fixing platform and other structures for coordinated use, thereby ensuring the connection effect between the bolt body and the nut and fully improving the mechanical strength of the equipment. The fixing platform is set, and bosses are set at both ends of the fixing platform, so that the first nut, the fixing platform and the second nut can be stably connected. In addition, a nylon ring and an rubber ring are set in the thread groove on the side of the bolt body as a connecting mechanism. During the locking process, the connecting mechanism and the internal thread have an interference fit, which plays an automatic locking role. The bolt is not easy to loosen under strong vibration conditions, thereby further improving the anti-loosening effect of the rod end nut device. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the internal structure of the utility model.
[0014] Figure 2 It is a schematic diagram of the structure of the utility model.
[0015] Figure 3 It is a schematic diagram of the internal structure of the second nut of the utility model.
[0016] In the figure: 1 a first nut, 11 a second nut, 12 a fixing platform, 13 a truncated platform, 14 a boss, 15 a groove, 16 a bolt body, 17 a bolt head, 18 a washer, 19 a threaded groove, 2 a nylon ring, and 21 a rubber ring. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-3 The utility model provides a technical solution: an anti-loosening rod end nut device, including a first nut 1 and a second nut 11, a fixing platform 12 is arranged between the first nut 1 and the second nut 11, bosses 14 are symmetrically distributed on both sides of the fixing platform 12, and the bosses 14 are correspondingly clamped in grooves 15 on the sides of the first nut 1 and the second nut 11, a bolt body 16 is screwed in the threaded holes of the first nut 1 and the second nut 11, and a nylon ring 2 is installed in the threaded groove 19 on the outer side of the bolt body 16.
[0019] In the above solution, the bolt body 16 is a right-hand threaded rod.
[0020] In the above scheme, a truncated cone portion 13 is provided on the side of the fixing platform 12, and the truncated cone portion 13 is correspondingly clamped in the circular hole on the side of the first nut 1. The first nut 1, the second nut 11 and the fixing platform 12 are used in combination to further improve the stability of the bolt fastener, ensure the connection effect between the bolt body 16 and the nut, and fully improve the mechanical strength of the equipment. By providing the fixing platform 12 and providing bosses 14 at both ends of the fixing platform 12, the first nut 1, the fixing platform 12 and the second nut 11 can be stably connected, further improving the stability of the equipment.
[0021] In the above solution, a bolt head 17 is provided at the end of the bolt body 16. The bolt body 16 and the bolt head 17 are integrally formed.
[0022] In the above scheme, a washer 18 is provided between the bolt head 17 and the first nut 1. The washer 18 is a part placed between the connected part and the nut. It is generally a flat metal ring used to protect the surface of the connected part from being scratched by the nut and to disperse the pressure of the nut on the connected part.
[0023] In the above scheme, the outside of the nylon ring 2 is provided with a rubber ring 21. By providing the nylon ring 2 and the rubber ring 21 in the thread groove 19 on the side of the bolt body 16 as a connecting mechanism, the connecting mechanism and the internal thread have an interference fit during the locking process, which plays an automatic locking role, and can prevent the bolt from loosening under strong vibration conditions, further improving the anti-loosening effect of the rod end nut device.
[0024] Under the action of torque, the nylon ring 2 is squeezed into a thread and filled in the thread groove 19. When it is screwed in further, the effective thread is screwed into the internal thread to meet the process conditions. The nylon ring 2 and the internal thread groove of the bolt body have an interference fit, which plays an automatic locking role.
[0025] Although nylon has high tensile strength and impact strength at room temperature, its fatigue resistance is good, second only to POM, and can be increased by about 50% after glass fiber reinforcement. Nylon has excellent friction and wear resistance and is a commonly used wear-resistant plastic variety.
[0026] In the above solution, the first nut 1 and the second nut 11 are coated with an anti-rust coating on their exteriors. The design of the anti-rust coating effectively improves the anti-rust effect of the first nut 1 and the second nut 11.
[0027] Working principle:
[0028] This anti-loosening rod end nut device further improves the stability of the bolt fastener by setting the first nut 1, the second nut 11 and the fixing platform 12 and other structures for use in combination, ensures the connection effect between the bolt body 16 and the nut, and fully improves the mechanical strength of the equipment. By setting the fixing platform 12 and arranging bosses 14 at both ends of the fixing platform 12, the first nut 1, the fixing platform 12 and the second nut 11 can be stably connected, which further improves the stability of the equipment. By arranging a nylon ring 2 and a rubber ring 21 in the thread groove 19 on the side of the bolt body 16 as a connecting mechanism, under the action of torsion, the nylon ring 2 is squeezed into a thread and filled in the thread groove 19. When it is further screwed in, the effective thread is screwed into the internal thread to meet the process conditions, and the nylon ring 2 and the internal thread groove of the bolt body have an interference fit, which plays an automatic locking role.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rod end nut device for preventing loosening, comprising a first nut (1) and a second nut (11), characterized in that: A fixing platform (12) is arranged between the first nut (1) and the second nut (11), bosses (14) are symmetrically distributed on both sides of the fixing platform (12), and the bosses (14) are correspondingly clamped in grooves (15) on the sides of the first nut (1) and the second nut (11), and a bolt body (16) is screwed in the threaded holes of the first nut (1) and the second nut (11), and a nylon ring (2) is installed in the threaded groove (19) on the outer side of the bolt body (16).
2. The anti-loosening rod end nut device according to claim 1, characterized in that: The bolt body (16) is a right-hand threaded rod.
3. The anti-loosening rod end nut device according to claim 1, characterized in that: A truncated cone portion (13) is provided on the side of the fixing platform (12), and the truncated cone portion (13) is correspondingly clamped in the circular hole on the side of the first nut (1).
4. The anti-loosening rod end nut device according to claim 1, characterized in that: A bolt head (17) is provided at the end of the bolt body (16).
5. The anti-loosening rod end nut device according to claim 4, characterized in that: A washer (18) is arranged between the bolt head (17) and the first nut (1).
6. The anti-loosening rod end nut device according to claim 1, characterized in that: A rubber ring (21) is arranged outside the nylon ring (2).
7. The anti-loosening rod end nut device according to claim 1, characterized in that: The exteriors of the first nut (1) and the second nut (11) are coated with an anti-rust coating.