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Self-locking bolt

A bolt and self-locking technology, applied in the direction of bolts, screws, nuts, etc., to achieve the effects of good practicability, cost reduction, and reduced assembly time

Pending Publication Date: 2018-09-14
梁智
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the threaded hole is inside the body (usually called a blind hole) or there are special requirements for use, there is currently no self-locking bolt on the market that can solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as Figure 1-3 As shown, a self-locking bolt includes a bolt body and a washer 1, the bolt body includes a bolt head 2 and a screw rod 3 connected to each other, the washer 1 is sleeved on the screw rod 3, and the end of the bolt head 2 in contact with the washer 1 There are a plurality of first helical teeth, and the end of the washer 1 in contact with the bolt head 2 is provided with a second helical tooth matching the first helical teeth; the first helical teeth are provided with a loosening thrust surface 5, that is, a bolt When the body is loosened and rotated, the first helical tooth is used as a force-giving surface, and the angle between the loosening thrust surface 5 and the horizontal plane is greater than the thread lift angle of the screw 3, so that the upward lifting distance of the bolt body is greater than the outer ...

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PUM

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Abstract

The invention belongs to the technical field of industrial fastening pieces, and in particular, relates to a self-locking bolt. The self-locking bolt comprises a bolt body and a gasket; the bolt bodycomprises a bolt head and a screw rod connected with each other; the gasket sleeves the screw rod; multiple first inclined teeth are arranged at the end, contacted with the gasket, of the bolt head; second inclined teeth matched with the first inclined teeth are arranged at the end, contacted with the bolt head, of the gasket; a loose thrust surface is arranged on the first inclined teeth; an included angle between the loose thrust surface and the horizontal plane is larger than a lead angle of the screw rod; and the friction coefficient between the end, far from the bolt head, of the gasket and the surfaces of workpieces is larger than the friction coefficient between the contact surfaces of the first inclined teeth and the second inclined teeth. The self-locking bolt can preferably realize self-locking without needing cooperation, and is excellent in self-locking effect.

Description

technical field [0001] The invention belongs to the technical field of industrial fasteners, and in particular relates to a self-locking bolt. Background technique [0002] Fasteners composed of bolts and nuts are widely used in many occasions such as technological development and innovation, industrial and agricultural production and processing, as well as mechanical equipment and instruments. At present, there are basically no self-locking bolts on the market, only self-locking nuts. [0003] The existing flange surface bolts in the market, such as: flange surface bolts with models DIN6921 and DIN1665, and flange surface bolts with anti-skid lines on the flange surface, are all achieved by increasing the surface contact area or increasing the surface friction coefficient. To achieve the anti-loosening effect. But the above-mentioned existing bolts can only play a very limited anti-loosening effect, and it can basically meet the requirements of use in general occasions, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/24F16B35/06
CPCF16B35/06F16B39/24
Inventor 梁智
Owner 梁智
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