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Single-pad lock bolt

A technology for preventing loosening of bolts and bolts, applied in the directions of bolts, screws, nuts, etc., to achieve the effect of easy installation, easy processing, and good anti-loosening effect.

Pending Publication Date: 2021-07-27
吕贵刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a single pad anti-loosening bolt, which has good anti-loosening effect, maintenance-free, easy to process, and low cost, so as to overcome the deficiencies in the prior art and solve the problems existing in the existing anti-loosening bolts

Method used

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention will be further described:

[0024] The single pad anti-loosening bolt is composed of a grooved bolt body (1), a main nut (2), an anti-loosening washer (3), and a lock nut (4).

[0025] The grooved bolt body (1) has a helical groove opposite to the helical direction of the thread, the complementary angle of the helix angle β of the helix groove is greater than the helix angle λ of the thread, and the helix angle β of the helix groove is greater than 2λ.

[0026] The inner ring surface of the anti-loosening washer (3) has a helical stopper, and the central axis of the inner ring surface of the anti-loosening washer (3) is the same as the central axis of the anti-loosening washer (3). Shaft, the helix angle β1 of the helical stopper of the anti-loosening washer (3) is equal to the helix angle β of the helical groove of the grooved bolt (1), both of which have the same direction of rotation, and the anti...

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Abstract

The invention discloses a single-pad lock bolt. The single-pad lock bolt is composed of a grooved bolt body (1), a main nut (2), a lock washer (3) and a locking nut (4). While the single-pad lock bolt adjusts a pre-tightening torque through the main nut (2) and performs self-locking through friction force, the lock washer (3) forms a locking structure through a spiral stopper embedded into a spiral groove of the grooved bolt body (1) and the locking nut (4), so that convex indentation teeth of the lock washer (3) are slightly embedded into the surface of one end of the main nut (2), a resistance of relative movement between the lock washer (3) and the main nut (2) is increased, the main nut (2) is prevented from generating a retreating trend, and pre-tightening force of the main nut (2) is kept, so that the anti-loosening purpose is achieved. The structure does not influence the fastening force or the anti-loosening effect, and is not sensitive to factors, such as transverse vibration force, variable loads and temperature change, which influence the loosening of the bolt.

Description

technical field [0001] The invention relates to the technical field of bolt fastening, in particular to a single pad anti-loosening bolt. Background technique [0002] The bolt connection fastening method is widely used in the industrial field, and the use occasions are also very different. Because some bolt use occasions have higher requirements for bolt fastening, and the bolts will loosen or even fall off when the bolts are affected by factors such as temperature and load changes. Therefore, the fastening of bolted connections in many usage occasions must have an anti-loosening function. In order to avoid the loosening and failure of the bolt connection during the working process, many people have adopted many methods and designed a variety of bolt connection anti-loosening structures, but at present, these methods and structural designs are not satisfactory in many applications. , still needs to be perfected. Contents of the invention [0003] The purpose of the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/04F16B39/24F16B39/12F16B33/02
CPCF16B33/02F16B35/041F16B39/12F16B39/24F16B2033/025
Inventor 吕贵刚
Owner 吕贵刚