A type of anti-loosening rivet
By introducing an elastic anti-loosening mechanism into the rivet, the problem of loosening of traditional rivets under vibration and temperature changes is solved, and a stable connection is achieved under harsh conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI YISHENG ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional rivets are prone to loosening under factors such as vibration, impact, and temperature changes, resulting in gaps in the connection, affecting the normal operation of equipment, and potentially causing safety accidents.
An anti-loosening rivet was designed, which adopts an interlocking rivet body and rivet sleeve structure, and sets an elastic anti-loosening mechanism at the connection, including a spring washer, a locking ring and an elastic inner sleeve. The elastic inner sleeve and the locking ring are used to fill the gap and enhance the tight fit.
It effectively prevents rivets from loosening, ensuring the reliability of the connection. It remains tight even under harsh working conditions, avoiding gaps and safety hazards caused by loosening.
Smart Images
Figure CN224283158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastener technology, specifically to an anti-loosening tack. Background Technology
[0002] In various mechanical assemblies and structural connections, rivets are a commonly used fastener with advantages such as convenient installation and high connection strength.
[0003] However, traditional rivets have obvious defects in preventing loosening in practical applications. During equipment operation, they are inevitably affected by factors such as vibration, impact and temperature changes. These factors can cause traditional rivets to gradually loosen, resulting in gaps in the connection, affecting the normal operation of the equipment, and may even cause safety accidents. To address these issues, we have proposed an anti-loosening rivet. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides an anti-loosening tack, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: an anti-loosening rivet, comprising: a rivet body and a rivet sleeve that are sleeved together; a pressing end is fixedly installed at the end of the rivet body that passes through the rivet sleeve, and an assembly groove for connecting with a rivet gun is provided at the end of the rivet body away from the pressing end; a tapered hole is provided at the port of the rivet sleeve adjacent to the pressing end, and a sleeve flange is fixedly installed on the port face of the rivet sleeve away from the pressing end; an elastic anti-loosening mechanism is provided at the connection between the rivet body and the rivet sleeve, the elastic anti-loosening mechanism including a spring washer sleeved with the rivet sleeve, a locking ring fixedly installed on the outer surface of the rivet body, and an elastic inner sleeve fixedly installed on the inner wall of the rivet sleeve.
[0006] Preferably, a reinforcing rib is provided at the connection between the nail sleeve and the sleeve edge.
[0007] Preferably, the locking ring has a rounded corner design, and in the initial state, the locking ring is located below the elastic inner sleeve.
[0008] Preferably, when tightening, the spring washer is located between the spring washer and the connector.
[0009] Preferably, the gap between the elastic inner sleeve and the nail body is smaller than the thickness of the locking ring itself.
[0010] Preferably, the spring washer is made of spring steel by a stamping process and then heat-treated.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] This anti-loosening rivet utilizes a locking ring and an elastic inner sleeve at the connection between the rivet body and the sleeve. When the rivet body is tightened to meet the fastening requirements through the sleeve tension, the elastic inner sleeve is compressed by the locking ring, further filling the gap between the rivet body and the sleeve, thus strengthening the tight fit between them. Simultaneously, a spring washer is fitted onto the sleeve, utilizing the elastic preload of the spring washer and the tight fit between the rivet body and the sleeve to double-protect the rivet's anti-loosening performance. Even under harsh working conditions, it effectively prevents the rivet from loosening, ensuring the reliability of the connection. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is an exploded view of the overall structure of this utility model;
[0015] Figure 3 This is a cross-sectional schematic diagram of part of the structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the nail sleeve structure of this utility model.
[0017] In the diagram: 1. Nail body; 11. Assembly groove; 12. Extrusion end; 2. Nail sleeve; 21. Sleeve edge; 22. Reinforcing rib; 23. Tapered hole; 3. Elastic anti-loosening mechanism; 31. Spring washer; 32. Locking ring; 33. Elastic inner sleeve. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-4 A type of anti-loosening rivet includes: a rivet body 1 and a rivet sleeve 2 that are nested together. The end of the rivet body 1 that passes through the rivet sleeve 2 is fixedly installed with a pressing end 12, and the end of the rivet body 1 away from the pressing end 12 is provided with an assembly groove 11 for connecting with a rivet gun; this facilitates user operation so that the user can quickly connect the entire rivet to the rivet gun.
[0020] A tapered hole 23 is provided at the port of the nail sleeve 2 adjacent to the extrusion end 12, and the sleeve 21 is fixedly installed on the port face of the nail sleeve 2 away from the extrusion end 12; a reinforcing rib 22 is provided at the connection between the nail sleeve 2 and the sleeve 21, which effectively improves the strength of the entire nail sleeve 2, thereby ensuring the structural integrity of the sleeve 21 after the nail sleeve 2 is compressed and deformed, so as to compress the spring washer 31 and achieve the purpose of increasing the preload by utilizing the elastic force of the spring washer 31 itself.
[0021] An elastic anti-loosening mechanism 3 is provided at the connection between the nail body 1 and the nail sleeve 2. The elastic anti-loosening mechanism 3 includes a spring washer 31 that fits into the nail sleeve 2. The spring washer 31 is made of spring steel by stamping and heat treatment. A locking ring 32 is fixedly installed on the outer surface of the nail body 1, and an elastic inner sleeve 33 is fixedly installed on the inner wall of the nail sleeve 2. The locking ring 32 has a rounded edge design. In the initial state, the locking ring 32 is located below the elastic inner sleeve 33. When tightening, the spring washer 31 is located between the spring washer 31 and the connector. The gap between the elastic inner sleeve 33 and the nail body 1 is smaller than the thickness of the locking ring 32 itself. Therefore, after pulling the nail body 1, the elastic inner sleeve 33 can be squeezed by the locking ring 32, further filling the gap between the nail body 1 and the nail sleeve 2, and further enhancing the anti-loosening effect.
[0022] 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 type of anti-loosening rivet, characterized in that, include: The nail body (1) and nail sleeve (2) are nested together. The end of the nail body (1) passing through the nail sleeve (2) is fixedly installed with a pressing end (12), and the end of the nail body (1) away from the pressing end (12) is provided with an assembly groove (11) for connecting with a rivet gun. A tapered hole (23) is provided at the port adjacent to the extrusion end (12) of the nail sleeve (2), and a sleeve (21) is fixedly installed on the port face of the nail sleeve (2) away from the extrusion end (12); An elastic anti-loosening mechanism (3) is provided at the connection between the nail body (1) and the nail sleeve (2). The elastic anti-loosening mechanism (3) includes a spring washer (31) that is sleeved with the nail sleeve (2), a locking ring (32) that is fixedly installed on the outer surface of the nail body (1), and an elastic inner sleeve (33) that is fixedly installed on the inner wall of the nail sleeve (2).
2. The anti-loosening rivet according to claim 1, characterized in that, A reinforcing rib (22) is provided at the connection between the nail sleeve (2) and the sleeve (21).
3. The anti-loosening rivet according to claim 1, characterized in that, The locking ring (32) has a rounded corner design, and in the initial state, the locking ring (32) is located below the elastic inner sleeve (33).
4. The anti-loosening rivet according to claim 1, characterized in that, When tightening, the spring washer (31) is located between the spring washer (31) and the connector.
5. The anti-loosening rivet according to claim 1, characterized in that, The gap between the elastic inner sleeve (33) and the nail body (1) is smaller than the thickness of the locking ring (32).
6. The anti-loosening rivet according to claim 1, characterized in that, The spring washer (31) is made of spring steel by stamping and then heat-treated.