A screw with anti-loosening auxiliary mechanism
By setting an interference fit between a nylon ring and a friction ring between the screw head and the connector, a high-strength anti-loosening mechanism is formed, which solves the problem of screw loosening caused by vibration and temperature changes, achieves the self-locking anti-loosening effect of the screw, and improves the connection stability and mechanical strength of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIASHAN YONGGU METALS MAKING CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-23
AI Technical Summary
Screws are prone to loosening during use due to external factors such as vibration and temperature changes. Existing anti-loosening measures, such as rubber anti-loosening rings, are easily detached, leading to damage to the connection structure.
A screw with an anti-loosening auxiliary mechanism was designed. By setting an interference fit between a nylon ring and a friction ring between the screw head and the connecting seat, a high-strength anti-loosening mechanism is formed. The stable connection of the guide thread and the connecting thread, combined with the automatic locking effect of the nylon ring, prevents the screw from loosening.
Under strong vibration conditions, the screws do not loosen, ensuring the safe operation of mechanical facilities, improving the stability and mechanical strength of the connection, and achieving a self-locking and anti-loosening effect.
Smart Images

Figure CN224396898U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screw equipment technology, specifically to a screw with an anti-loosening auxiliary mechanism. Background Technology
[0002] Screws may loosen during use due to external factors. A common solution is to add a fastener locking device. However, traditional locking mechanisms consist of ordinary screws and spring washers. When the spring is subjected to prolonged pressure, it fatigues and loses its elasticity, thus failing to lock properly. During equipment operation, factors such as vibration and temperature changes can cause screws to loosen. Loosening screws can damage the connection structure. Using rubber anti-loosening rings is a common method to prevent screw loosening; however, existing rubber anti-loosening rings are prone to detaching from the screw, affecting the anti-loosening effect and potentially causing the screw to rotate and loosen. Therefore, we propose a screw with an anti-loosening auxiliary mechanism. Utility Model Content
[0003] The purpose of this invention is to provide a screw with an anti-loosening auxiliary mechanism to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a screw with an anti-loosening auxiliary mechanism, comprising a screw body, a screw head at the top of the screw body, a mounting seat detachably connected to the screw head, the screw body being connected to the mounting seat via an outer guide thread, an abutment at the bottom of the screw head, a nylon ring sleeved in a groove outside the abutment, and an annular groove at the top of the mounting seat, with a friction ring disposed within the annular groove.
[0005] In the above scheme, the mounting base is fixedly connected to the screw head through a connector.
[0006] In the above scheme, a plug is inserted into the groove at the top of the mounting base.
[0007] In the above scheme, a cross groove is provided on the top of the mounting base.
[0008] In the above scheme, the connecting hole of the connecting seat is provided with a connecting thread.
[0009] In the above scheme, the inner wall of the friction ring is provided with anti-slip texture.
[0010] In the above solution, the screw body and the screw head are integrally formed.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This screw with an anti-loosening auxiliary mechanism has a simple and reasonable structural design and strong practicality. By setting a high-strength anti-loosening mechanism composed of a screw head and a connecting seat, the stability of the bolt fastener is further improved, ensuring the connection effect between the screw body and the connecting seat, and fully enhancing the mechanical strength of the equipment. By setting a nylon ring in the annular groove on the side of the screw head as a connecting mechanism and generating an interference fit with the friction ring in the annular groove, an automatic locking effect is achieved. Under strong vibration conditions, the bolt will not loosen, and it has anti-vibration and anti-loosening functions, ensuring the safe operation of mechanical facilities, thereby preventing the screw from rotating, further improving the connection and fixing effect between the connecting seat and the screw mechanism, and achieving the purpose of self-locking and anti-loosening. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the connection structure of this utility model.
[0013] Figure 2 This is a schematic diagram of the structure of this utility model.
[0014] Figure 3 This is a schematic diagram of the top structure of the mounting base of this utility model.
[0015] In the figure: 1. Screw body 12. Screw head 13. Mounting base 14. Connector 15. Plug 16. Cross groove 17. Connecting base 18. Guide thread 19. Connecting thread 2. Abutment part 21. Nylon ring 22. Annular groove 23. Friction ring. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-3 This utility model provides a technical solution: a screw with an anti-loosening auxiliary mechanism, including a screw body 1, a screw head 12 at the top of the screw body 1, a mounting seat 13 detachably connected to the screw head 12, the screw body 1 being connected to a connecting seat 17 via an outer guide thread 18, an abutment part 2 at the bottom of the screw head 12, a nylon ring 21 sleeved in a groove outside the abutment part 2, and an annular groove 22 at the top of the connecting seat 17, with a friction ring 23 disposed within the annular groove 22.
[0018] In the above scheme, the mounting base 13 is fixedly connected to the screw head 12 via the connector 14. By setting a high-strength anti-loosening mechanism composed of the screw head 12 and the connector 17, the stability of the bolt fastener is further improved, ensuring the connection effect between the screw body 1 and the connector 17, fully enhancing the mechanical strength of the equipment, and ensuring the connection effect of the equipment.
[0019] In the above solution, a plug 15 is inserted into the groove at the top of the mounting base 13. The plug 15 can be easily inserted and removed.
[0020] In the above design, the mounting base 13 has a cross-shaped groove 16 on its top. A screwdriver is used to rotate and install the screw by engaging the cross-shaped groove 16.
[0021] In the above scheme, the connecting hole of the connecting seat 17 is provided with a connecting thread 19. The guide thread 18 and the connecting thread 19 cooperate to form a stable connecting mechanism.
[0022] In the above scheme, the inner wall of the friction ring 23 is provided with anti-slip texture. By setting a nylon ring 21 in the annular groove on the side of the screw head 12 as a connecting mechanism, it forms an interference fit with the friction ring 23 in the annular groove 22, which plays an automatic locking role. Under strong vibration conditions, the bolt will not loosen, and it has the function of shockproof and anti-loosening, ensuring the safe operation of mechanical facilities, thereby preventing the screw from rotating, further improving the connection and fixing effect between the connecting seat and the screw mechanism, and achieving the purpose of self-locking and anti-loosening.
[0023] In the above scheme, the screw body 1 and the screw head 12 are integrally formed.
[0024] Working principle:
[0025] This type of screw with an anti-loosening auxiliary mechanism, during the connection process, the screw body 1 is screwed into the connecting seat 17, and the guide thread 18 and the connecting thread 19 cooperate to form a stable connection mechanism. The abutment part 2 at the bottom of the screw head 12 enters the annular groove 22 at the top of the connecting seat 17. During this process, the nylon ring 21, as a connecting mechanism, has an interference fit with the friction ring 23 in the annular groove 22, which plays an automatic locking role. Furthermore, the installation seat 13 on the screw head 12 further enhances the protective effect. By setting a high-strength anti-loosening mechanism composed of the screw head 12 and the connecting seat 17, the stability of the bolt fastener is further improved, ensuring the connection effect between the screw body 1 and the connecting seat 17, fully improving the mechanical strength of the equipment, and ensuring the connection effect of the equipment. By setting the nylon ring 21 in the annular groove on the side of the screw head 12 as a connecting mechanism, it has an interference fit with the friction ring 23 in the annular groove 22, which plays an automatic locking role and has anti-vibration and anti-loosening functions, thereby preventing the screw from rotating and further improving the connection and fixing effect between the connecting seat 17 and the screw mechanism, achieving the purpose of self-locking and anti-loosening.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A screw with an anti-loosening auxiliary mechanism, comprising a screw body (1), characterized in that: The screw body (1) has a screw head (12) at its top end. A mounting base (13) is detachably connected to the screw head (12). The screw body (1) is connected to the connecting base (17) through the outer guide thread (18). The bottom of the screw head (12) has an abutment part (2). A nylon ring (21) is sleeved in the groove outside the abutment part (2). The top of the connecting base (17) has an annular groove (22), and a friction ring (23) is provided in the annular groove (22).
2. A screw with an anti-loosening auxiliary mechanism according to claim 1, characterized in that: The mounting base (13) is fixedly connected to the screw head (12) via a connector (14).
3. A screw with an anti-loosening auxiliary mechanism according to claim 1, characterized in that: A plug (15) is inserted into the groove at the top of the mounting base (13).
4. A screw with an anti-loosening auxiliary mechanism according to claim 1, characterized in that: The mounting base (13) has a cross groove (16) on its top.
5. A screw with an anti-loosening auxiliary mechanism according to claim 1, characterized in that: The connecting hole of the connecting seat (17) is provided with a connecting thread (19).
6. A screw with an anti-loosening auxiliary mechanism according to claim 1, characterized in that: The inner wall of the friction ring (23) is provided with anti-slip texture.
7. A screw with an anti-loosening auxiliary mechanism according to claim 1, characterized in that: The screw body (1) and screw head (12) are integrally formed.