A bolt anti-loosening fastener with elastic clamping plate
By setting connection ports and connectors on the bolt shank, the compatibility problem of bolt anti-loosening fasteners on different work products is solved, achieving stable connection and enhanced adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI CHENG DE FASTENER CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-05-26
AI Technical Summary
Existing bolt anti-loosening fasteners are difficult to adjust in size when dealing with products with large working thicknesses, resulting in inconvenient installation and reduced compatibility.
A bolt anti-loosening fastener with an elastic clamping plate was designed. By setting first and second connection ports on the bolt shank and equipping it with connectors and connecting washers, it allows for the connection of extensions to adapt to different operating size requirements.
It achieves stable connection for different work products, enhances the adaptability and stability of the connection, and ensures the normal use of bolt anti-loosening fasteners.
Smart Images

Figure CN224283168U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of fastener technology, specifically a bolt anti-loosening fastener with an elastic clamping plate. Background Technology
[0002] Bolt anti-loosening fasteners with elastic clamping plates effectively prevent bolts from loosening under vibration or external forces by attaching elastic clamping plates to the bolts, thereby improving the stability and safety of the connection. They are particularly suitable for high-vibration environments such as machinery and automobiles. Secondly, the elastic clamping plates provide continuous pressure, keeping the bolts tight and preventing loosening due to prolonged use or changes in the external environment. This is crucial for extending equipment lifespan and reducing maintenance costs. Furthermore, these fasteners are easy to install, requiring no additional tools or complex procedures, facilitating rapid deployment and replacement, saving time and labor costs.
[0003] The design with elastic clamping tabs not only increases the bolt's anti-loosening ability but also allows it to adapt to different temperatures and working conditions, exhibiting excellent fatigue resistance and durability. Furthermore, this fastener is highly adaptable and can be widely used in various machinery, construction, and automotive industries, especially in applications requiring high strength and long-term stability.
[0004] However, in common applications of bolt anti-loosening fasteners, it is inconvenient for workers to adjust the size of the bolt anti-loosening fasteners, and it is also inconvenient to install and use on products with large working thicknesses, reducing the adaptability of the anti-loosening fasteners. Utility Model Content
[0005] The purpose of this application is to provide a bolt anti-loosening fastener with an elastic clamping plate in order to solve the problem mentioned above with the adjustable working size bolt anti-loosening fastener.
[0006] The technical solution adopted in this application is as follows: a bolt anti-loosening fastener with an elastic clamping plate, comprising a bolt shank, a first connecting port fixedly connected to the side of the bolt shank, an extension member threadedly connected to the side of the first connecting port, a first connecting washer provided at the middle position of the bolt shank and the extension member, a second connecting port fixedly connected to the side of the extension member, a rear connecting member threadedly connected to the side of the second connecting port, a second connecting washer provided at the middle position of the rear connecting member and the extension member, and the first connecting port and the second connecting port having the same size.
[0007] By adopting the above technical solution, in the operation and use of bolt anti-loosening fasteners, the first connecting port facilitates the connection of the extension piece, thereby extending the working size of the bolt rod and making it easier to adapt to larger working products. This facilitates subsequent anti-loosening and tightening operations, ensuring the stable connection of internal components of the working product. In use, the operator aligns the extension piece with the first connecting port, places the first connecting washer in the middle position between the bolt rod and the extension piece, and then facilitates the connection operation of the extension piece, ensuring the stability of the connection between the structures. Then, the rear connector is connected to the second connecting port. The second connecting washer helps to strengthen the connection of the rear connector. In normal operation, the first and second connecting ports are the same size, making it easy to connect the rear connector to the side of the bolt rod. This ensures the normal operation of the bolt rod and the normal use of the bolt anti-loosening fastener when the working size does not need to be adjusted.
[0008] In a preferred embodiment, a nut is fixedly connected to the side of the bolt rod.
[0009] By adopting the above technical solution, the nut is designed to facilitate the installation of the bolt rod, thereby ensuring the subsequent use of the bolt anti-loosening fastener.
[0010] In a preferred embodiment, a first elastic washer is provided on the side of the bolt rod adjacent to the nut.
[0011] By adopting the above technical solution, the first elastic gasket is convenient for subsequent installation operations. Its elastic properties enhance the fastening force and effectively prevent bolts from loosening. The first elastic gasket is resistant to high temperature and corrosion and can withstand long-term use pressure.
[0012] In a preferred embodiment, the end of the bolt shank away from the nut is threaded with a plurality of nuts, including a first nut and a second nut.
[0013] By adopting the above technical solution, the first nut and the second nut are convenient for subsequent installation and fixing operations, and are convenient for subsequent anti-loosening and tightening of the work product, ensuring the normal use of the bolt structure.
[0014] In a preferred embodiment, a second elastic washer is provided at the middle position of the first nut and the second nut.
[0015] By adopting the above technical solution, the combined use of the second elastic washer and the first elastic washer can connect the bolt structure with the work product to form a fixed structure, ensuring the stability of the connection.
[0016] In a preferred embodiment, the bolt rod is composed of multiple layers of material, and the interior of the bolt rod is provided with alloy steel.
[0017] By adopting the above technical solution, the alloy steel is provided with stainless steel at the lower end by adding different alloying elements.
[0018] By adopting the above technical solution, the stainless steel has excellent corrosion resistance and is particularly suitable for applications in humid, chemically corrosive or marine environments. The stainless steel can withstand high temperatures without losing strength and can ensure structural stability under high temperature conditions.
[0019] In a preferred embodiment, the interior of the bolt rod, at the lower end of the stainless steel, is provided with titanium alloy.
[0020] By adopting the above technical solution, the titanium alloy has very high strength and very light weight, can maintain long-term stability in harsh environments, and is not easy to rust.
[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0022] In this application, during the operation of the bolt anti-loosening fastener, the first connecting port facilitates the connection of the extension piece, thereby extending the working size of the bolt shank and making it easier to adapt to larger products. This facilitates subsequent anti-loosening fastening operations and ensures stable connection of internal components within the product. In use, the operator aligns the extension piece with the first connecting port, places the first connecting washer between the bolt shank and the extension piece, and then facilitates the connection of the extension piece, ensuring stable connection between structures. The subsequent connecting piece is then connected to the second connecting port. The second connecting washer reinforces the connection of the subsequent connecting piece. During normal operation, the first and second connecting ports are the same size, allowing the subsequent connecting piece to be easily attached to the side of the bolt shank. This ensures the normal operation of the bolt shank and the proper use of the bolt anti-loosening fastener when no adjustment of the working size is required. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the bolt anti-loosening fastener structure with elastic clamping plate according to this application;
[0024] Figure 2 This is a schematic diagram of the bolt anti-loosening fastener structure splicing in this application;
[0025] Figure 3 This is an exploded view of the bolt anti-loosening fastener structure in this application;
[0026] Figure 4 This is a schematic diagram of the material composition of the bolt rod in this application.
[0027] The markings in the diagram are: 1. Bolt rod; 2. Nut; 3. First elastic washer; 4. First nut; 5. Second nut; 6. First connecting washer; 7. Rear connector; 8. Second elastic washer; 9. Extension; 10. Second connecting washer; 11. First connection port; 12. Second connection port; 13. Alloy steel; 14. Stainless steel; 15. Titanium alloy. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example:
[0029] Reference Figure 1-3 A bolt anti-loosening fastener with an elastic clamping plate includes a bolt shank 1. A first connecting port 11 is fixedly connected to the side of the bolt shank 1. An extension member 9 is threadedly connected to the side of the first connecting port 11. A first connecting washer 6 is positioned between the bolt shank 1 and the extension member 9. A second connecting port 12 is fixedly connected to the side of the extension member 9. A rear connecting member 7 is threadedly connected to the side of the second connecting port 12. A second connecting washer 10 is positioned between the rear connecting member 7 and the extension member 9. The first connecting port 11 and the second connecting port 12 are of the same size. In operation, the first connecting port 11 facilitates the connection of the extension member 9, thereby extending the working size of the bolt shank 1 and making it suitable for larger products. To facilitate subsequent anti-loosening and tightening operations and ensure stable connection of internal components, during use, the operator aligns the extension 9 with the first connection port 11, places the first connecting washer 6 in the middle of the bolt rod 1 and the extension 9, and then facilitates the connection operation of the extension 9, ensuring stable connection between structures. The rear connector 7 is then connected to the second connection port 12. The second connecting washer 10 reinforces the connection of the rear connector 7. During normal operation, the first connection port 11 and the second connection port 12 are the same size, making it easy to connect the rear connector 7 to the side of the bolt rod 1. This ensures the normal operation of the bolt rod 1 and the proper use of the anti-loosening fastener when no adjustment of the working dimensions is required.
[0030] Reference Figure 1-3A nut 2 is fixedly connected to the side of the bolt rod 1. The nut 2 is designed to facilitate the installation of the bolt rod 1, thereby ensuring the use of the bolt anti-loosening fastener in subsequent operations.
[0031] Reference Figure 1-3 A first elastic washer 3 is provided on the side of the bolt rod 1 adjacent to the nut 2. The first elastic washer 3 is provided to facilitate subsequent installation operations. Its elastic properties enhance the tightening force and effectively prevent the bolt from loosening. The first elastic washer 3 has the characteristics of high temperature resistance and corrosion resistance and can withstand long-term use pressure.
[0032] Reference Figure 1-3 The bolt rod 1 has multiple nuts threaded to the end away from the nut 2, including a first nut 4 and a second nut 5. The first nut 4 and the second nut 5 are set to facilitate subsequent installation and fixing operations, and to facilitate the anti-loosening and tightening of the product, ensuring the normal use of the bolt structure.
[0033] Reference Figure 1-3 A second elastic washer 8 is provided in the middle position of the first 4 nuts and the second 5 nuts. The use of the second elastic washer 8 and the first elastic washer 3 together can connect the bolt structure with the work product to form a fixed structure and ensure the stability of the connection.
[0034] Reference Figure 4 Bolt rod 1 is composed of multiple layers of materials. The interior of bolt rod 1 contains alloy steel 13. The alloy steel 13 is improved in hardness, strength and wear resistance by adding different alloying elements, which facilitates subsequent operation.
[0035] Reference Figure 4 The interior of the bolt rod 1 is provided with stainless steel 14 at the lower end of alloy steel 13. Stainless steel 14 has excellent corrosion resistance and is particularly suitable for applications in humid, chemically corrosive or marine environments. Stainless steel 14 can withstand high temperatures without losing strength and can ensure the stability of the structure under high temperature conditions.
[0036] Reference Figure 4 The inner part of the bolt rod 1 is provided with a titanium alloy 15 at the lower end of the stainless steel 14. The titanium alloy 15 has very high strength and very light weight, can maintain long-term stability in harsh environments, and is not easy to rust.
[0037] The implementation principle of the bolt anti-loosening fastener embodiment of this application is as follows:
[0038] In the operation of bolt anti-loosening fasteners, the first connecting port 11 facilitates the connection of the extension piece 9, thereby extending the working size of the bolt rod 1 and making it suitable for larger products. This facilitates subsequent anti-loosening and tightening operations, ensuring the stable connection of internal components. During use, the operator aligns the extension piece 9 with the first connecting port 11, places the first connecting washer 6 between the bolt rod 1 and the extension piece 9, and then uses the extension piece 9 for connection, ensuring a stable connection between the structures. Finally, the rear connecting piece 7 is connected to the second connecting port 12. The position of the rear connector 7 is reinforced by the second connecting gasket 10. During normal operation, the first connecting port 11 and the second connecting port 12 are the same size, which makes it easy to connect the rear connector 7 to the side of the bolt rod 1. This ensures the normal operation of the bolt rod 1 and the normal use of the bolt anti-loosening fastener when the working size does not need to be adjusted. By using this structure, it is convenient for workers to appropriately increase the working size of the bolt anti-loosening fastener during the operation of the structure, which facilitates subsequent operation and ensures the normal installation and use of the bolt anti-loosening fastener.
[0039] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A bolted fastener with elastic clamping tabs, comprising a bolt shank (1), characterized in that: The side of the bolt rod (1) is fixedly connected with a first connecting port (11), the side of the first connecting port (11) is threadedly connected with an extension piece (9), the middle positions of the bolt rod (1) and the extension piece (9) are provided with first connecting gaskets (6), the side of the extension piece (9) is fixedly connected with a second connecting port (12), the side of the second connecting port (12) is threadedly connected with a rear connecting piece (7), the middle positions of the rear connecting piece (7) and the extension piece (9) are provided with second connecting gaskets (10), and the first connecting port (11) and the second connecting port (12) are of the same size.
2. A bolt check fastener with elastic clamping piece as claimed in claim 1, characterized in that: The side of the bolt rod (1) is fixedly connected with a nut (2).
3. A bolt anti-loosening fastener with an elastic clamping plate as described in claim 1, characterized in that: The side of the bolt rod (1) is provided with a first elastic gasket (3) at the adjacent position of the nut (2).
4. A bolt check fastener with elastic clamping piece as claimed in claim 1, wherein: The end, away from the nut (2), of the bolt rod (1) is threadedly connected with a plurality of nuts, including a first nut (4) and a second nut (5).
5. A bolt check fastener with elastic clamping piece as claimed in claim 4, wherein: the elastic clamping piece is made of a material having a spring constant of 0.5 to 2.0 kg / mm. The middle positions of the first nut (4) and the second nut (5) are provided with second elastic gaskets (8).
6. A bolt check fastener with elastic clamping piece as claimed in claim 1 wherein: The bolt rod (1) is composed of multiple layers of materials, and the inside of the bolt rod (1) is provided with alloy steel (13).
7. A bolt fastener with elastic clamping piece as claimed in claim 1, wherein: the elastic clamping piece is made of a material having a spring constant of 0.5 to 2.0 kg / mm. The inside of the bolt rod (1) is provided with stainless steel (14) at the lower end of the alloy steel (13).
8. A bolt check fastener with elastic clamping piece as claimed in claim 1 wherein: The inside of the bolt rod (1) is provided with titanium alloy (15) at the lower end of the stainless steel (14).