Anti-loosening nut assembly

An anti-loosening and nut technology, applied in the direction of nuts, threaded fasteners, screws, etc., can solve the problems of low economy and high production cost, and achieve the effect of reducing economic losses and accident injuries, and preventing economic losses and accident injuries.

Pending Publication Date: 2022-07-22
张培锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pressure friction between the concave nut and the convex nut is still used to prevent loosening, and the production cost is high and the economy is low.

Method used

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  • Anti-loosening nut assembly
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  • Anti-loosening nut assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] like Figure 1-3 The shown anti-loosening nut assembly includes a first nut 2 and a second nut 3 , and the first nut 2 and the second nut 3 cooperate to lock the bolt 1 . Likewise, in order to facilitate the use of existing standard bolts, the thread specifications of the first nut 2 and the second nut 3 are both standard threads.

[0024] The inner and outer walls of the first nut 2 are provided with threads, and the pitches of the inner thread 22 and the outer thread 23 are different; the second nut 3 includes a second nut body 31, and the inner wall of the second nut body 31 is provided with secondary threads, Including the first-level thread 32 and the second-level thread 33; the thread specifications of the bolt 1, the inner thread 22 of the first nut 2, and the first-level thread 32 of the second nut 3 are the same, and the outer thread 23 of the first nut 2, the second thread The thread specifications of the second thread 33 of the two nuts 3 are the same. In t...

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PUM

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Abstract

The invention discloses an anti-loosening nut assembly which comprises a first nut and a second nut, and the first nut and the second nut are matched to lock a bolt. Threads are arranged on the inner wall and the outer wall of the first nut, and the thread pitches of the inner threads and the outer threads are different; the second nut comprises a second nut body, the inner wall of the second nut body is provided with a secondary thread, and the secondary thread comprises a first-stage thread and a second-stage thread; the bolt, the internal thread of the first nut and the first-stage thread of the second nut are the same in thread specification, and the external thread of the first nut and the second-stage thread of the second nut are the same in thread specification. After the first nut and the second nut are connected, due to the fact that the internal threads and the external threads of the first nut are different in thread regulation, the two nuts are clamped on the bolt through pressure and friction force in the axial direction of the bolt, the nuts are effectively prevented from loosening and falling off, and the nut has the advantages of being high in vibration resistance, light, capable of being disassembled repeatedly and the like.

Description

technical field [0001] The invention relates to the technical field of anti-loosening devices, in particular to an anti-loosening nut assembly. Background technique [0002] Lock nut and self-tightening nut are a common tightening lock nut, including mechanical lock, riveting lock, friction lock, and structural lock. The commonly used self-locking and anti-loosening threaded fasteners mainly use various self-locking bolts or ring groove rivets to achieve self-locking, and add various spring washers to the threaded connection pair to achieve thread self-locking. Ordinary nuts are often loosened during use. Although there are anti-loosening nuts on the market, the anti-loosening effect is not reliable. [0003] For example, the principle of the existing double nut locking is that after the two nuts are tightened, the axial force generated between the nuts increases the frictional force between the nut teeth and the bolt teeth to prevent the nuts from automatically loosening. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/12F16B37/00
CPCF16B39/12F16B37/00
Inventor 张培锋
Owner 张培锋
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