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Lock nut and a fastening unit comprising the same

A technology for anti-loosening nuts and nut loosening, applied in the direction of nuts, screws, bolts, etc., can solve the problems of bolts and nuts loosening, achieve excellent operability, simple disassembly and coupling, and improve the effect of anti-loosening

Active Publication Date: 2013-03-20
李容国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when vibration or shock is applied to the coupling structure over a long period of time in the state where the bolt and nut are coupled, the bolt and nut may loosen.

Method used

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  • Lock nut and a fastening unit comprising the same
  • Lock nut and a fastening unit comprising the same
  • Lock nut and a fastening unit comprising the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Hereinafter, the locknut and the coupling unit provided with the locknut according to the present invention will be described in detail with reference to the drawings.

[0020] figure 1 It is a perspective view showing a locknut and a coupling unit provided with a locknut according to an embodiment of the present invention, figure 2 from the bottom side figure 1 Perspective view of locknut shown.

[0021] Such as figure 1 As shown, the coupling unit includes a bolt 100 , a nut 200 and a locknut 300 .

[0022] The bolt 100 includes a head 110 and a threaded portion 120 formed with threads. The nut 200 is coupled to the bolt 100 so as to be able to couple the coupling object 10 (refer to image 3 ). For this, the nut 200 has a threaded bolt hole 220 into which the threaded portion 120 of the bolt 100 is inserted and bolt-coupled, thereby coupling the bolt 100 and the nut 200 to each other.

[0023] The locknut 300 is coupled between the bolt 100 and the nut 200 an...

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PUM

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Abstract

The present invention relates to a lock nut and a fastening unit comprising the lock nut. The lock nut is fastened between a bolt and a nut and prevents the bolt and nut from loosening, comprising: a nut body having a fastening hole for fastening onto the bolt; a pair of first projecting parts which are formed projecting from one of the surfaces of the nut body and form a first slot having a first orientation such that the nut body can deform resiliently when the bolt and the nut are fastened; and a pair of second projecting parts which are formed projecting from the other surface of the nut body and form a second slot having a second orientation different from the first orientation. The invention also provides a bolt-and-nut loosening prevention structure having an improved loosening-prevention function.

Description

technical field [0001] The invention relates to a locknut for preventing bolts and nuts from loosening and a coupling unit provided with the locknut. Background technique [0002] Bolts and nuts are generally used as coupling tools for mechanical devices. The bolts and nuts are coupled to each other by bolting, thereby coupling coupling objects. However, when vibration or impact is applied to the coupling structure over a long period of time in the coupled state of the bolts and nuts, the bolts and nuts loosen. [0003] In order to prevent loosening of the bolts and nuts, spring washers are generally used. The spring washer is a truncated and twisted coil-shaped washer, and has a structure that is coupled between a bolt and a nut and elastically deforms when the bolt and the nut are coupled. When the bolt and the nut are coupled, the spring washer is pressed to apply a force to the bolt and the nut in the direction of increasing the frictional force of the thread, thereby...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/12F16B39/16F16B39/02
CPCF16B39/12
Inventor 李容国金镇高
Owner 李容国
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