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Anti-loosening bolt fastener

A bolt fastener and anti-loosening technology, which is applied in the direction of threaded fasteners, locking fasteners, bolts, etc., can solve the problems of affecting the operation performance of equipment, reducing safety and reliability, lack of connection and anti-loosening, etc.

Active Publication Date: 2021-02-02
崔路晋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during actual use, due to vibration, high and low load changes, impact or long-term working conditions, the nuts are prone to loosening, which directly affects the operation performance of the equipment and reduces its safety and reliability. The light ones affect the normal operation of the equipment and cause Economic losses, severe cases will affect personal safety
[0003] In the prior art, due to defects in the structural design of fasteners and the lack of loosening parts, after the bolts and nuts are fastened, the bolts and nuts are still in a separate state, only affected by the force of the helix. Mutual restriction, and there is no connection restriction between the bolt and the nut. Under the persistent external vibration, the axial pre-tightening force increases, and the nut easily rotates outward along the thread on the bolt, thus forming a nut. Main causes of loose caps

Method used

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  • Anti-loosening bolt fastener

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] as attached figure 1 and 13 As shown, an anti-loosening bolt fastener includes a bolt 1 and a nut 2, wherein the bolt 1 is composed of a bolt head 103 and a bolt body 104, and the bolt body 104 is provided with an external thread section and a smooth section. The round hole of the cap 2 is provided with an internal thread corresponding to the external thread of the bolt body 104. On the radial section of the bolt 1, a plurality of groups of grooves 101 are evenly arranged in the axial direction, and the bottom surface of the groove 101 is arranged intermittently. The bump 102, the length of the groove 101 extends to the smooth part of the bolt 1 along the radial direction of the bolt, and the depth of the groove 101 is at least greater than the depth of the external thread of the bolt 1; it also includes a lock cap for movably connecting the bolt and the nut Fastener 3.

[0037] as attached image 3 As shown, the cross-section of the bump 102 is a right-angled trapez...

Embodiment 2

[0045] as attached figure 1 and13 As shown, an anti-loosening bolt fastener includes a bolt 1 and a nut 2, wherein the bolt 1 is composed of a bolt head 103 and a bolt body 104, and the bolt body 104 is provided with an external thread section and a smooth section. The round hole of the cap 2 is provided with an internal thread corresponding to the external thread of the bolt body 104. On the radial section of the bolt 1, a plurality of groups of grooves 101 are evenly arranged in the axial direction, and the bottom surface of the groove 101 is arranged intermittently. The bump 102, the length of the groove 101 extends to the smooth part of the bolt 1 along the radial direction of the bolt, and the depth of the groove 101 is at least greater than the depth of the external thread of the bolt 1; it also includes a lock cap for movably connecting the bolt and the nut Fastener 3.

[0046] as attached image 3 As shown, the cross-section of the bump 102 is a right-angled trapezoi...

Embodiment 3

[0054] as attached figure 1 , 9 As shown in and 14, a kind of anti-loosening bolt fastener includes a bolt 1 and a nut 2, wherein the bolt 1 is composed of a bolt head 103 and a bolt body 104, and the bolt body 104 is provided with an external thread section and a smooth section The round hole of the nut 2 is provided with an internal thread corresponding to the external thread of the bolt body 104. On the radial section of the bolt 1, there are multiple groups of grooves 101 evenly arranged in the axial direction, and the bottom surface of the groove 101 is intermittent. Protrusions 102 are arranged, and the length of the groove 101 extends to the smooth part of the bolt 1 along the radial direction of the bolt, and the depth of the groove 101 is at least greater than the depth of the external thread of the bolt 1; Lock ring fastener 4.

[0055] as attached image 3 As shown, the cross-section of the bump 102 is a right-angled trapezoid, the side of the bump facing the bol...

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PUM

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Abstract

The invention discloses an anti-loosening bolt fastener. The fastener comprises a bolt, a nut and a fastening connecting piece, and is characterized in that the fastening connecting piece comprises alock nut fastener or a lock ring fastener, wherein a limiting mechanism is formed between a groove of the bolt and a buckling piece of the lock nut fastener, and a locking mechanism is formed betweenthe lock nut fastener and the nut or a limiting mechanism is formed between the groove of the bolt and a buckling piece of the lock ring fastener. Compared with an existing traditional fastening modeof the bolt and the nut, the technical scheme provided by the invention has the advantages that temporary locking between the bolt and the nut is completed through the fastening connecting piece, so that the problem that the nut is loosened due to vibration is solved.

Description

Technical field [0001] The invention relates to the technical field of bolt and nut connections, and in particular to an anti-loosening bolt fastener. Background technique [0002] The connection method of bolts and nuts is the most basic form of fastening connectors. It is widely used in mechanical equipment, automobiles, trains, aerospace and other fields. Especially for engineering machinery assembly factories, the connection of bolts and nuts Fasteners have the advantages of easy standardized mass production, simple structure, low cost, convenient installation, and easy disassembly. However, during actual use, due to vibration, high and low load changes, impact, or long-term working conditions, the nut can easily become loose, which directly affects the operating performance of the equipment and reduces its safety and reliability, or even affects the normal operation of the equipment. Economic losses may, in severe cases, affect personal safety. [0003] In the prior a...

Claims

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Application Information

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IPC IPC(8): F16B39/10F16B35/00F16B37/00
CPCF16B39/10F16B35/00F16B37/00
Inventor 张琼崔路晋
Owner 崔路晋
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