Hollow rivet fastener

By incorporating a spring and contact plate design into the hollow rivet fastener, combined with metal barbs, guide plates, magnetic discs, and anti-corrosion coatings, the loosening problem of hollow rivets when the connection changes is solved, improving the stability and durability of the connection.

CN224032915UActive Publication Date: 2026-03-24DONGGUAN LUOSHENGDUN HARDWARE TECH CO LTD
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Patent Information

Application Number
CN202521022521.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-03-24
Estimated Expiration
2035-05-23

AI Technical Summary

Technical Problem

Existing hollow rivets cannot adapt to the minute size and shape changes of the connectors during use, leading to loosening and connection failure, and may also cause stress concentration, shortening the service life.

Method used

A hollow rivet fastener was designed, employing a combination of a spring and a contact plate. The spring's extension and contraction adapt to changes in the connecting parts, enhancing connection stability. Metal barbs are installed on the rivet shank surface to prevent pull-out. The rivet head and shank surfaces are coated with an acrylic anti-corrosion coating to improve corrosion resistance. The rivet head is designed with a guide plate and a magnetic disc for easy installation and positioning. A weak groove is designed at the open end of the tail for easy fastening.

Benefits of technology

It achieves stable connection force even with minor changes in the connectors, preventing loosening, enhancing connection strength, improving installation accuracy and efficiency, extending service life and reducing maintenance costs.

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Abstract

The utility model relates to the technical field of rivets, and discloses a hollow rivet fastener which comprises a rivet head part, the bottom end of the rivet head part is fixedly connected with a rivet rod part, a plurality of tail opening ends are installed at the bottom end of the rivet rod part, an elastic spring is arranged on the surface of the rivet rod part in a sleeved mode, and the tail opening ends are connected with the elastic spring. The top end of the elastic spring is fixedly connected with the bottom end of the rivet head part, a contact plate is installed at the tail end of the elastic spring, a plurality of metal barbs are installed on the surface of the rivet rod part, and the barb direction of the metal barbs is opposite to the insertion direction of the rivet rod part. According to the hollow rivet fastener, through the design of the elastic spring and the contact plate, when a connecting piece connected with a hollow rivet has tiny size or shape change due to the conditions of temperature change, stress deformation and the like, the elastic spring can adapt to the change through stretching and retracting, so that the contact plate always keeps good contact with the connecting piece, and stable connecting force is maintained; and looseness is not easy to generate.
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