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Anti-loosening fastening device and using method thereof

A technology for anti-loosening and tightening bolts, which is applied in the direction of threaded fasteners, thin-plate connections, and connecting components. loose effect

Active Publication Date: 2019-08-09
西安飞宇航空仿真技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During use, due to vibration or cold and heat shrinkage, the bolts will rotate and withdraw, causing the nuts used with them to loosen, fall off, etc., and lose the fastening function.
At the same time, because the bolt and nut fastening components are easy to disassemble, they are easy to be stolen or destroyed, causing potential safety hazards and economic losses

Method used

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  • Anti-loosening fastening device and using method thereof
  • Anti-loosening fastening device and using method thereof
  • Anti-loosening fastening device and using method thereof

Examples

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The given examples are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0038] Such as figure 1 As shown, an anti-loosening fastening device includes a fastening bolt 10, the fastening bolt 10 passes through the through holes on the part A200 and the part B300, and is threaded with the fastening nut 80, and the part A200 and the part B300 are fastened on the Together; an O-ring A30 is installed between the fastening bolt 10 and the mating surface of the part A200, and an O-ring C40 is installed between the fastening nut 80 and the mating surface of the part B300;

[0039] The inner hole that is provided with on the fastening bolt 10, one end of the inner hole is equipped with a heating and pressurizing bolt 20, the heating and pressing bolt 20 is threadedly connected with the fastening ...

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Abstract

The invention discloses an anti-loosening fastening device and a using method thereof. The anti-loosening fastening device comprises a fastening bolt and a fastening nut; the fastening bolt is provided with an inner hole; one end of the inner hole is provided with a heating pressuring bolt, and the heating pressurizing bolt is in threaded connection with the fastening bolt; the other end of the inner hole is provided with a plug, and the plug is in threaded connection with the fastening bolt; low-melting-point alloy is filled in the inner hole of the fastening bolt in a sealing mode; and the inner hole is provided with a plurality of through holes in the radial direction, and the through holes communicate with the gaps between the fastening bolt and a part well as between the fastening bolt and the fastening nut. According to the using method, the fastening bolt, the fastening nut and the part are fixedly connected together through the low-melting-point alloy, and the nut is effectively prevented from loosening and disengaging and being stolen; after the solid low-melting-point alloy between the matched surfaces of the part, the fastening bolt and the fastening nut is heated to melt and released, the fastening device can be quickly disassembled.

Description

technical field [0001] The invention belongs to the technical field of fasteners, and in particular relates to an anti-loosening fastening device and a use method thereof. Background technique [0002] Bolts are one of the common fasteners in the field of mechanical engineering. They are used together with nuts to fix parts with through holes together to form a detachable connection. During use, due to vibration or thermal contraction, the bolts will rotate and retreat, causing the nuts used with them to loosen, fall off, etc., and lose their fastening function. At the same time, because the bolt and nut fastening components are easy to disassemble, they are easy to be stolen or destroyed, which will cause potential safety hazards and economic losses. Therefore, it is necessary to provide an anti-loosening fastening device that solves the above-mentioned technical and safety problems. Contents of the invention [0003] In order to overcome the deficiencies of the above-m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/04F16B35/06F16B5/02B25B27/14H05B3/40
CPCB25B27/14F16B5/02F16B35/04F16B35/06H05B3/40
Inventor 张毅陈婉璐豆素勤姜广兴姚良苏鹏升
Owner 西安飞宇航空仿真技术股份有限公司
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