A taper face extruded lock nut assembly

By designing a conical extrusion type anti-loosening nut assembly, and utilizing the conical extrusion and groove design of Nut 1 and Nut 2, the problem of limited anti-loosening effect of traditional eccentric double nuts is solved, achieving multi-directional bolt anti-loosening effect and improving the stability and safety of threaded connections.

CN224550596UActive Publication Date: 2026-07-24GUANGDONG STERLY FASTENING SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG STERLY FASTENING SYST CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional eccentric double nuts have limited anti-loosening effect, only generating radial compression in local areas, and cannot effectively prevent the threaded connection structure from loosening under complex working conditions.

Method used

A conical extrusion type anti-loosening nut assembly is designed. Through the extrusion action between the inner conical surface of nut one and the outer conical surface of nut two, nut two is radially contracted in multiple directions. Combined with the design of groove one and groove two, the clamping effect between nut two and bolt external thread is enhanced.

Benefits of technology

It achieves effective compression of the bolt's external thread in multiple directions, enhancing the anti-loosening effect and improving the stability and safety of the threaded connection.

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Abstract

The utility model relates to the fastener field, concretely is a kind of taper extrusion type locknut assembly.It includes nut one and nut two;Nut one middle part has internal thread one, and nut one bottom end has end face, and end face has coaxially distributed inner taper face;Nut two middle part has internal thread two with the same specification with internal thread one, and nut two upper part has coaxially distributed outer taper face, and outer taper face is located inner side of inner taper face, and inner taper face and outer taper face are all conical surface.The utility model can extrude bolt external thread in radial direction in multidirectional range around thread axis, that is, the range of nut internal thread along radial direction is more tightly embraced bolt external thread, and stronger anti-loose effect is achieved.
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