A stainless steel chain anti-loosening connection component
By introducing a combination design of hexagonal bolts, limit posts, anti-loosening washers, and lock nuts into the stainless steel chain connection, the problem of chain loosening is solved, achieving higher connection reliability and stability, simplifying installation, and protecting critical components from corrosion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI JUCHENG STAINLESS STEEL CHAIN CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-05-26
AI Technical Summary
Existing stainless steel chain connection methods are prone to loosening after vibration and long-term operation, which affects the normal operation of equipment and poses safety hazards, and the anti-loosening effect is limited.
The design employs a combination of a first hexagonal bolt, a limiting post, an anti-loosening washer, and a lock nut. Combined with the structure of the protective plate and the limiting plate, it enhances the reliability of the connection and achieves stable installation through the cooperation of the positioning stud and the threaded hole.
It improves the reliability and stability of stainless steel chain connections, prevents loosening, simplifies the installation process, protects key connecting components from corrosion, and enhances the safety and practicality of the equipment.
Smart Images

Figure CN224283348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chain connection technology, and in particular to a stainless steel chain anti-loosening connection component. Background Technology
[0002] Stainless steel chains are widely used in many industrial fields and some everyday applications, such as in the transmission systems or traction devices of conveying equipment, lifting equipment, bicycles, and motorcycles.
[0003] However, existing stainless steel chain connection methods are prone to loosening during use, especially after vibration, impact, or long-term operation. This not only affects the normal operation of the equipment but may even cause safety accidents. Their anti-loosening effect is limited and cannot meet the requirements of high-reliability applications. Therefore, we propose a stainless steel chain anti-loosening connection component to solve this problem. Utility Model Content
[0004] The purpose of this invention is to provide a stainless steel chain anti-loosening connection component to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A stainless steel chain anti-loosening connection assembly includes a first chain, a connecting seat on the right side of the first chain, a second chain on the right side of the connecting seat, a first anti-loosening washer on the front side of the connecting seat, a first hexagonal bolt on the front side of the first anti-loosening washer, a limit post fixedly installed on the rear side of the first hexagonal bolt, a locking nut on the rear side of the connecting seat, and protective plates on both the left and right sides of the front and rear sides of the connecting seat. Limit plates are fixedly installed on the top and bottom of the rear side of the front protective plate and the top and bottom of the front side of the rear protective plate. Positioning studs are provided on the front side of the front limit plate and the rear side of the rear limit plate.
[0007] Preferably, the number of the first anti-loosening gaskets is four sets, and they are distributed in a rectangular array. The rear side of the limiting post is movable through the connecting seat, and the outer side of the rear side of the limiting post is provided with an external thread that matches the locking nut.
[0008] Preferably, the left and right sides of the connecting seat are respectively provided with slots that are adapted to the first chain and the second chain.
[0009] Preferably, the rear side of the front limiting plate and the front side of the rear limiting plate both extend into the interior of the connecting seat, and the front and rear sides of the connecting seat are provided with limiting grooves that are adapted to the limiting plates, and the inner wall of the limiting groove slides in contact with the outer side of the limiting plate.
[0010] Preferably, the rear side of the front positioning stud and the front side of the rear positioning stud are both threaded through the protective plate and threaded into the interior of the connecting seat. The surface of the protective plate and the surface of the connecting seat are both provided with threaded holes that are compatible with the positioning studs.
[0011] Preferably, a second anti-loosening washer is provided between the protective plate and the positioning stud.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model further enhances the reliability of the connection by using a first hexagonal bolt and a limiting post in conjunction with an anti-loosening washer and a locking nut. At the same time, the structure is simple, the installation is convenient, and it has high practicality and promotion value.
[0014] In this invention, by rotating the positioning stud forward to move it away from the connecting seat, and then removing the positioning stud and the second anti-loosening washer, the left protective plate is moved to the right and the right protective plate is moved to the left. This allows the first hexagonal bolt and the locking nut to be twisted. The protective plates effectively protect the first hexagonal bolt and the locking nut from corrosion. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a stainless steel chain anti-loosening connection component proposed in this utility model;
[0016] Figure 2 This is an unfolded structural diagram of the protective plate of a stainless steel chain anti-loosening connection component proposed in this utility model;
[0017] Figure 3 This is a rear structural cross-sectional view of a stainless steel chain anti-loosening connection component proposed in this utility model;
[0018] Figure 4 for Figure 2 A magnified view of part A in the middle;
[0019] Figure 5 for Figure 3 A magnified view of part B in the middle section.
[0020] In the diagram: 1. First chain; 2. Second chain; 3. Connecting seat; 4. First anti-loosening washer; 5. First hexagonal bolt; 6. Limiting groove; 7. Limiting plate; 8. Threaded hole; 9. Positioning stud; 10. Second anti-loosening washer; 11. Protective plate; 12. Limiting post; 13. Locking nut; 14. Slot. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-5 A stainless steel chain anti-loosening connection assembly includes a first chain 1, a connecting seat 3 on the right side of the first chain 1, a second chain 2 on the right side of the connecting seat 3, a first anti-loosening washer 4 on the front side of the connecting seat 3, a first hexagonal bolt 5 on the front side of the first anti-loosening washer 4, a limit post 12 fixedly installed on the rear side of the first hexagonal bolt 5, a locking nut 13 on the rear side of the connecting seat 3, protective plates 11 on both the left and right sides of the front and rear sides of the connecting seat 3, limit plates 7 fixedly installed on the top and bottom of the rear side of the front protective plate 11 and the top and bottom of the front side of the rear protective plate 11, and positioning studs 9 on the front side of the front limit plate 1 and the rear side of the rear limit plate 7.
[0023] In this embodiment, there are four sets of first anti-loosening gaskets 4, which are arranged in a rectangular array. The rear side of the limiting post 12 moves through the connecting seat 3. The outer side of the rear side of the limiting post 12 is provided with an external thread that matches the locking nut 13. The left and right sides of the connecting seat 3 are respectively provided with slots 14 that match the first chain 1 and the second chain 2. The rear side of the front limiting plate 7 and the front side of the rear limiting plate 7 both extend into the interior of the connecting seat 3. The front and rear sides of the connecting seat 3 are provided with limiting grooves 6 that match the limiting plate 7. The inner wall of the limiting groove 6 slides in contact with the outer side of the limiting plate 7. Through the mutual cooperation of the limiting groove 6 and the limiting plate 7, the protective plate 11 can be limited, which improves the stability of the protective plate 11.
[0024] In this embodiment, the rear side of the front positioning stud 9 and the front side of the rear positioning stud 9 are both threaded through the protective plate 11 and threaded to the interior of the connecting seat 3. The surface of the protective plate 11 and the surface of the connecting seat 3 are both provided with threaded holes 8 that are adapted to the positioning stud 9. A second anti-loosening washer 10 is provided between the protective plate 11 and the positioning stud 9. The stability of the connection between the positioning stud 9 and the connecting seat 3 is improved by the second anti-loosening washer 10.
[0025] In this embodiment, when it is necessary to connect two stainless steel chains, rotate the positioning stud 9 forward to move it away from the connecting seat 3. Then remove the positioning stud 9 and the second anti-loosening washer 10. Move the left protective plate 11 to the right and the right protective plate 11 to the left. Then place the first chain 1 and the second chain 2 into the slots 14 on the left and right sides of the connecting seat 3. Insert the first hexagonal bolt 5 from the front of the connecting seat 3 and place the first anti-loosening washer 4 between the first hexagonal bolt 5 and the connecting seat 3. Then fix the limiting post 12 by tightening the lock nut 13. Finally, reset the protective plate 11 and the positioning stud 9 in sequence.
[0026] The above provides a detailed description of a stainless steel chain anti-loosening connection component provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A stainless steel chain anti-loosening connection assembly, comprising a first chain (1), characterized in that: A connecting seat (3) is provided on the right side of the first chain (1), and a second chain (2) is provided on the right side of the connecting seat (3). A first anti-loosening washer (4) is provided on the front side of the connecting seat (3), and a first hexagonal bolt (5) is provided on the front side of the first anti-loosening washer (4). A limit post (12) is fixedly installed on the rear side of the first hexagonal bolt (5). A locking nut (13) is provided on the rear side of the connecting seat (3). Protective plates (11) are provided on both the left and right sides of the front and rear sides of the connecting seat (3). Limit plates (7) are fixedly installed on the top and bottom of the rear side of the protective plate (11) and the top and bottom of the front side of the protective plate (11). A positioning stud (9) is provided on the front side of the limit plate (7) and the rear side of the limit plate (7).
2. The stainless steel chain anti-loosening connection assembly according to claim 1, characterized in that: The first anti-loosening gasket (4) consists of four sets, arranged in a rectangular array. The rear side of the limiting post (12) is movable through the connecting seat (3), and the outer side of the rear side of the limiting post (12) is provided with an external thread that matches the locking nut (13).
3. The stainless steel chain anti-loosening connection assembly according to claim 1, characterized in that: The connecting seat (3) has slots (14) on its left and right sides that are adapted to the first chain (1) and the second chain (2).
4. The stainless steel chain anti-loosening connection assembly according to claim 1, characterized in that: The rear side of the front limiting plate (7) and the front side of the rear limiting plate (7) both extend into the interior of the connecting seat (3). The front and rear sides of the connecting seat (3) are provided with limiting grooves (6) that are adapted to the limiting plate (7). The inner wall of the limiting groove (6) slides in contact with the outer side of the limiting plate (7).
5. The stainless steel chain anti-loosening connection assembly according to claim 1, characterized in that: The rear side of the front positioning stud (9) and the front side of the rear positioning stud (9) are both threaded through the protective plate (11) and threaded to the interior of the connecting seat (3). The surface of the protective plate (11) and the surface of the connecting seat (3) are both provided with threaded holes (8) that are compatible with the positioning stud (9).
6. The stainless steel chain anti-loosening connection assembly according to claim 1, characterized in that: A second anti-loosening washer (10) is provided between the protective plate (11) and the positioning stud (9).