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Non-loosening bolt device

A bolt and nut technology, applied in the field of non-loose bolt devices, can solve the problems of loose bolts, inconvenient disassembly, complex structure, etc., and achieve the effect of convenient installation and disassembly, and convenient installation and disassembly.

Pending Publication Date: 2021-06-22
徐敬涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, bolts are widely used in all walks of life. There is a problem of loosening of bolts during use. After the bolts are loose, it may cause safety hazards and immeasurable losses.
The existing technology of non-loosening bolts mainly focuses on nuts and washers, including cotter pins on the bolts, etc. The structure is too complicated, the production is difficult, the cost is high, and none of them can achieve true never-loosening, and once installed inconvenient to disassemble

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0024] Such as Figure 1-Figure 3 Shown:

[0025] A non-loosening bolt device, comprising a stepped thread screw and a hexagonal head 1, the stepped thread screw is fixedly connected to the hexagonal head 1, and the stepped thread screw includes a fastening section 2, a forward thread section 3 and a reverse thread section 4. The stepped thread screw is made by processing two threads on the existing screw, the first thread is the forward thread section 3 (length is 1.2a, a is the thickness of the forward nut 6), the second thread The thread is the reverse thread segment 4 (the length is 1.5b, b is the thickness of the reverse flange nut 8), the diameter of the second thread is 4mm smaller than the diameter of the first thread, which is convenient for the first thread The forward nut 6 on the tooth is installed. The smooth surface area of ​​the screw is the fastening section 2 used for installation, and the length of the fastening section 2 is determined according to the act...

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Abstract

The invention provides a non-loosening bolt device. The non-loosening bolt device comprises a step thread screw and a hexagonal head, wherein the step thread screw is fixedly connected with the hexagonal head. The step thread screw comprises a fastening section, a forward thread section and a reverse thread section, wherein a gasket is arranged on the forward thread section, the forward thread section is connected with a forward nut through threads, and the reverse thread section is connected with a reverse flange type nut through threads. According to the technical scheme, the forward thread section and the forward nut are arranged to generate forward rotation resistance, the reverse thread section and the reverse flange type nut are arranged to generate reverse spiral resistance, the forward spiral resistance and the reverse spiral resistance on the same bolt axis are mutually restrained to jointly resist slippage, and the anti-loosening effect of a bolt assembly is achieved; the diameter of the reverse thread section is smaller than that of the forward thread section, so that the forward nut is convenient to mount and dismount, the bolt assembly is convenient to mount and dismount, and the use requirements of different use occasions are met.

Description

technical field [0001] The invention relates to the technical field of fasteners, in particular to a non-loosening bolt device. Background technique [0002] At present, bolts are widely used in all walks of life, and there is a problem of loosening of bolts during use. After the bolts are loosened, it may cause safety hazards and immeasurable losses. The existing technology of non-loosening bolts mainly focuses on nuts and washers, including cotter pins on the bolts, etc. The structure is too complicated, the production is difficult, the cost is high, and none of them can achieve true never-loosening, and once installed It is inconvenient to disassemble afterwards. Contents of the invention [0003] The object of the present invention is to provide a non-loosening bolt device, which can achieve the effect of not loosening after installation, has a simple structure, is convenient to use, and is economical and practical. [0004] The invention provides a non-loosening bol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/28F16B37/00F16B35/04F16B43/00
CPCF16B35/041F16B37/00F16B39/28F16B43/00
Inventor 徐敬涛
Owner 徐敬涛
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