Bolt fastener
By using a mechanical snap-fit structure between the anti-slip ring and the washer with an interference fit, the problem of bolt loosening under complex working conditions is solved, achieving stable installation and convenient disassembly, and improving the durability of bolt fasteners.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI AODACO AUTO PARTS CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-15
AI Technical Summary
Bolted connections have poor durability and are inconvenient to disassemble under complex working conditions, and are prone to loosening, especially under the coupling of multiple fields such as mechanical vibration and temperature changes.
It adopts a double fixing structure of mechanical snap-fit and interference fit between anti-slip ring and gasket. The anti-slip ring is snap-fitted into the mounting hole of the gasket by its protrusion. Combined with the interference fit between the anti-slip ring and gasket made of rubber or silicone, the use of additional locking parts is avoided.
This achieves a stable installation of bolted connections, effectively preventing loosening and improving the durability and ease of disassembly of bolted fasteners.
Smart Images
Figure CN224245221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt technology, specifically to a bolt fastener. Background Technology
[0002] Bolted connections are one of the most basic connection methods in mechanical engineering. Under complex working conditions, bolted connections are simultaneously subjected to multiple coupled effects such as mechanical vibration, temperature changes, and media corrosion, resulting in poor durability or inconvenient disassembly. The inventors have proposed an improvement to address this issue. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of the aforementioned background technology by providing a bolt fastener that is securely installed and effectively prevents loosening.
[0004] To achieve the above objectives, this utility model provides a bolt fastener, which adopts the following technical solution:
[0005] A bolt fastener, comprising:
[0006] Bolt head;
[0007] A screw rod is located on one side of the bolt head and is integrally formed with the bolt head; the outer side of the screw rod is threaded.
[0008] A washer located on the outside of the screw; and
[0009] An anti-slip ring is located on the outside of the gasket. The gasket has mounting holes on its outer periphery, which are matched and fixed with the anti-slip ring. The anti-slip ring and gasket are mechanically snapped together and then tightened with an interference fit for double fixation, eliminating the need for additional locking components. This ensures a secure installation and effectively prevents the fasteners from loosening.
[0010] A further improvement of this utility model regarding a bolt fastener is that the mounting holes are through holes, evenly distributed along the circumference of the washer. The washer has six through holes, distributed circumferentially.
[0011] A further improvement of this utility model regarding a bolt fastener is that the anti-slip ring includes a protrusion corresponding to the mounting hole, which is inserted into the mounting hole to achieve a snap-fit fixation. The top of the protrusion is chamfered to facilitate the insertion of the anti-slip ring into the washer.
[0012] A further improvement of this utility model to a bolt fastener is that the anti-slip ring is made of rubber or silicone, and its inner diameter is interference-fitted with the outer diameter of the washer.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The anti-slip ring and gasket are mechanically snapped together with an interference fit for double fixation, eliminating the need for additional locking parts. This ensures a stable installation and effectively prevents the fasteners from loosening. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] In the diagram: Bolt head 1, screw 2, washer 3, mounting hole 31, anti-slip ring 4. Detailed Implementation
[0017] 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.
[0018] like Figure 1 As shown, a bolt fastener includes:
[0019] Bolt head 1;
[0020] Screw 2 is located on one side of the bolt head and is integrally formed with the bolt head. The outer side of the screw is threaded.
[0021] The washer 3 is provided on the outside of the screw; and
[0022] An anti-slip ring 4 is located on the outer side of the gasket. The outer periphery of the gasket has mounting holes 31, which are matched and fixed with the anti-slip ring. The anti-slip ring and the gasket are double-fixed by mechanical snap-fit and interference fit, eliminating the need for additional locking parts. The installation is stable and effectively prevents the fastener connection from loosening.
[0023] Specifically, the mounting holes are through holes, evenly distributed along the circumference of the gasket. There are 6 through holes in the gasket, distributed circumferentially.
[0024] Specifically, the anti-slip ring includes a protrusion corresponding to the mounting hole, which is inserted into the mounting hole for snap-fit fixation. The top of the protrusion is chamfered to facilitate the anti-slip ring's insertion into the gasket.
[0025] Specifically, the anti-slip ring is made of rubber or silicone, and its inner diameter is interference-fitted with the outer diameter of the gasket.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A bolt fastener, characterized in that, include: A bolt head; a screw rod disposed on one side of the bolt head and integrally formed with the bolt head, the outer side of the screw rod being threaded; a washer disposed on the outer side of the screw rod; and an anti-slip ring disposed on the outer side of the washer, wherein the outer periphery of the washer is provided with a mounting hole, the mounting hole being matched and fixed with the anti-slip ring.
2. A bolt fastener according to claim 1, characterized in that: The mounting holes are through holes and are evenly distributed along the circumference of the gasket.
3. A bolt fastener according to claim 1, characterized in that: The anti-slip ring includes a protrusion corresponding to the mounting hole, and the protrusion is inserted into the mounting hole to achieve a snap-fit fixation.
4. A bolt fastener according to claim 1, characterized in that: The anti-slip ring is made of rubber or silicone, and its inner diameter is interference-fitted with the outer diameter of the gasket.