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A double-nut type anti-loosening bolt group

An anti-loosening and bolt group technology, applied in the direction of bolts, nuts, screws, etc., can solve the problems of easy loosening of bolt groups and reduce the reliability of bolt groups, and achieve the effect of ensuring effectiveness

Active Publication Date: 2022-04-01
HAIYAN HUILIAN GENERAL FITTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bolt group used in the existing combination of bolts and nuts is easy to loosen after connection, reducing the reliability of the bolt group

Method used

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  • A double-nut type anti-loosening bolt group
  • A double-nut type anti-loosening bolt group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] refer to figure 1 and figure 2 , a double-nut type anti-loosening bolt group of the present invention includes a main bolt 1, a main nut 2, an auxiliary screw rod 12, an auxiliary nut 3, a protruding ring 30, a fixing sleeve 31, and an auxiliary bolt 22. The main bolt 1 is composed of Bolt head 10, main screw rod 11 is formed, and main screw rod 11 is fixed on the bottom of bolt head 10, and main screw rod 11 is screwed with a main nut 2, and the bottom of described main screw rod 11 is fixed with an auxiliary screw rod 12, and main screw rod 11 and auxiliary The screw rods 12 are located on the same axis, the outer diameter of the main screw rod 11 is larger than the outer diameter of the auxiliary screw rod 12, the thread rotation direction of the main screw rod 11 is opposite to that of the auxiliary screw rod 12, and an auxiliary nut is screwed on the auxiliary screw rod 12 3. A ring of protruding ring 30 is provided on the side wall of auxiliary nut 3. A fixing s...

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PUM

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Abstract

The invention discloses a double-nut type anti-loosening bolt group, which includes a main bolt, a main nut, an auxiliary screw rod, an auxiliary nut, a protruding ring, a fixing sleeve, and an auxiliary bolt. The main bolt is composed of a bolt head and a main screw rod. The main screw is fixed on the bottom of the bolt head, and a main nut is screwed on the main screw. An auxiliary screw is fixed on the bottom of the main screw. The main screw and the auxiliary screw are located on the same axis, and the outer diameter of the main screw is larger than that of the auxiliary screw. The thread rotation direction on the main screw is opposite to that of the auxiliary screw. An auxiliary nut is screwed on the auxiliary screw. A fixed sleeve. The present invention cooperates the fixing sleeve, the main nut and the auxiliary nut so that the main nut is not easy to loosen after the connecting piece is firmly fixed, thereby effectively ensuring the effectiveness of the connecting piece.

Description

【Technical field】 [0001] The invention relates to the technical field of fasteners, especially the technical field of bolt groups. 【Background technique】 [0002] A fastener is a part used to connect objects, and there are many types, among which bolts and nuts are commonly used bolt groups. The bolt group used in the existing combination of bolts and nuts is easy to loosen after being connected, which reduces the reliability of the bolt group. 【Content of invention】 [0003] The purpose of the present invention is to solve the problems in the prior art, and propose a double-nut type anti-loosening bolt group, which can make the bolt group not easy to loosen. [0004] In order to achieve the above object, the present invention proposes a double-nut type anti-loosening bolt group, comprising a main bolt, a main nut, an auxiliary screw rod, an auxiliary nut, a protruding ring, a fixing sleeve, and an auxiliary bolt, and the main bolt is composed of a bolt head , the main s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B39/12F16B39/284
CPCF16B39/12F16B39/284
Inventor 屠马军
Owner HAIYAN HUILIAN GENERAL FITTING