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Self-locking nut

A technology of self-locking nuts and nuts, which is applied in the direction of nuts, screws, bolts, etc., which can solve problems such as troublesome installation, failure to buckle, and restrictions on construction conditions

Pending Publication Date: 2017-05-17
王钢
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the former is equipped with a spring pad, it still cannot solve the problem of buckling; while the latter is troublesome to install and is limited by construction conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] like figure 1 As shown on the left, the expansion wire 2 passes through the hoop 3, and is integrated with the half-through nut 1 with reverse thread, and the tapered tube of the expansion wire 2 is stuck outside the hoop 3.

[0015] like figure 2 As shown, the combination of half-through nut 1, expansion wire 2, and round hoop 3 is screwed onto the bolt 4. Since the half-through nut 1 and the expansion wire 2 are reversed, and the connection between the expansion wire 2 and the bolt 4 is positive buckle, so when the half-through nut 1 is turned clockwise, the combination of the three will move inward together in the overall state. When the front end of the half-through nut 1 leans against the object 5, continue to forcefully twist the half-through nut 1 clockwise, the expansion wire 2 will be driven to rotate clockwise at a speed lower than that of the half-through nut 1, and move inward, while At this time, the pressure of the half-through nut 1 on the object 5 inc...

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PUM

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Abstract

The invention provides a self-locking nut which is formed by connecting a semi-through nut, an expanding screw and a hoop through reversed buckling threads. When the nut is screwed clockwise to get close to an object to force the front end of the expanding screw to abut against a baffle of an inner cavity of the semi-through nut; and meanwhile, a taper pipe of the expanding screw is completely inserted into the loop, due to the tightening effect between the taper pipe and the loop, the nut cannot be subject to buckle retreating, secondary fastening on the object is carried out even when the nut is screwed anticlockwise, the nut cannot be easily dismounted from the bolt, and therefore the functions of self locking and theft prevention are achieved.

Description

[0001] Technical field [0002] The invention relates to a nut which is used in conjunction with ordinary bolts and can be locked automatically. Background technique [0003] As we all know, in order to fix objects more stably, or to connect two objects, we usually use screws or rivets. Even if the former is equipped with a spring pad, it still cannot solve the problem of buckling; while the latter has the defects of troublesome installation and limited by construction conditions. Contents of the invention [0004] In order to overcome the above disadvantages, the present invention proposes a nut that can be used in the same way as ordinary nuts, but can be locked automatically and does not back off. The nut is composed of a half-through nut, an expansion wire and a hoop. [0005] One of the technical solutions adopted in the present invention is that the half-through nut is equivalent to adding an annular baffle on one side of the ordinary nut, and its internal thread is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/28F16B41/00
Inventor 王钢
Owner 王钢