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Combined locknut

An anti-loosening nut and combined technology, applied in the direction of nuts, screws, bolts, etc., can solve the problems of inconvenient operation, cannot be reused, no anti-loosening function, etc., and achieve simple operation, lasting anti-loosening effect, and good anti-loosening effect. Effect

Inactive Publication Date: 2016-08-24
仇海侠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nuts are widely used, but ordinary nuts have no anti-loosening function, and will become looser and looser when affected by factors such as vibration and impact. Some existing nuts with anti-loosening functions have poor anti-loosening effects, and some operation Inconvenient, some can not be reused, are not very practical

Method used

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Embodiment Construction

[0016] A combined anti-loosening nut includes a fastening nut 1, a stop washer 2, a spring washer 3 and a compression nut 4. The lower end surface of the fastening nut 1 has a flange portion, and the outer circular side of the flange portion is provided with a limit groove 5 corresponding to the stop ear 7 of the stop washer 2 . The two radial square protrusions on the outer circle of the stop washer 2 are folded sideways by 90 degrees in opposite directions in the axial direction to form stop ears 7 and stop ears 8 . The upper end surface of the compression nut 4 has a flange portion, and the outer circular side of the flange portion is engraved with uniform and continuous zigzag anti-skid teeth 6 , and the direction of the anti-skid teeth 6 is opposite to the tightening direction of the compression nut 4 . The outer diameter of the spring washer 3 is smaller than the outer diameter of the stop washer 2, so that the stop ear 8 of the stop washer 2 can cross the outer diameter...

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Abstract

The invention provides a combined locknut capable of being prevented from automatically unlocking on a bolt. The combined locknut comprises a fastening nut, a lock washer, a spring washer and a compressing nut. The combined locknut is characterized in that a limiting groove is formed in the fastening nut; a locking lug and a returning stopping lug are arranged on the lock washer; anti-slip teeth are arranged on the compressing nut. According to the combined locknut, a workpiece on the bolt is fastened through the fastening nut; then the bolt is sleeved with the lock washer and the spring washer sequentially, and the locking lug on the lock washer is embedded into the limiting groove in the fastening nut; the compressing nut is screwed and compressed; the returning stopping lug on the lock washer is inserted into tooth grooves of the anti-slip teeth on the compressing nut, so that the fastened fastening nut, the lock washer, the spring washer and the compressing nut can form a fastening body; a large frictional force remains between the body and threads of the bolt all the time. Therefore, the combined locknut has a good locking effect; and in addition, the combined locknut is simple to operate, and can be repeatedly used.

Description

(1) Technical field [0001] The invention relates to a fastener, in particular to a combined anti-loosening nut. (2) Background technology [0002] Nuts are widely used, but ordinary nuts have no anti-loosening function, and will become looser and looser when affected by factors such as vibration and impact. Some existing nuts with anti-loosening functions have poor anti-loosening effects, and some operation Inconvenience, some can not be reused, all not very practical. (3) Contents of the invention [0003] In order to make up for the deficiency of the existing anti-loosening nut, the invention provides a combined anti-loosening nut, which has strong practicability and good anti-loosening effect. [0004] The present invention is achieved through the following technical solutions: [0005] A combined anti-loosening nut includes a fastening nut, a stop washer, a spring washer and a compression nut. It is characterized in that: the fastening nut has a limit groove, the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/12F16B37/00
Inventor 仇海侠
Owner 仇海侠
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