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Interlocking type bolt anti-loosening structure

An anti-loose and bolt technology, applied in the direction of bolts, screws, nuts, etc., can solve the problem of loose bolt connections

Pending Publication Date: 2022-03-15
张家陶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of loosening of bolted joints, especially for the fastening and anti-loosening of bolts under the condition of no nuts (usually countersunk holes or blind holes), the present invention proposes an interlocking bolt anti-loosening structure

Method used

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  • Interlocking type bolt anti-loosening structure
  • Interlocking type bolt anti-loosening structure
  • Interlocking type bolt anti-loosening structure

Examples

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Embodiment Construction

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] It should be noted:

[0026] The critical angle θ refers to the minimum slope or angle required for the anti-loosening surfaces of the anti-loosening teeth to fail to slide relative to each other due to mutual resistance when loosening occurs due to vibration;

[0027] The uphill tangent direction refers to the direction from the root of the anti-loosening tooth to the top of the tooth;

[0028] The slope refers to the angle between the uphill tangent of the point on the guide surface or the anti-loosening surface and the vertical plane of the central axis;

[0029] The helix angle of the elastic anti-loosening ring is greater than the lead angle of the same-handed thread, and the lead angle and helix angle have the same regulations as the terms of the thread in the machine.

[0030] The present invention as Figure 1...

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PUM

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Abstract

The interlocking type bolt anti-loosening structure comprises a bolt, an elastic anti-loosening ring and an anti-loosening seat, the elastic anti-loosening ring is clamped between a bolt head and the anti-loosening seat, the elastic anti-loosening ring comprises an open backing ring body, anti-loosening teeth consistent in guiding and non-return directions are arranged on the two side faces of the backing ring body respectively, a circle of anti-loosening teeth are arranged on the upper end face of the anti-loosening seat, and the anti-loosening seat is arranged on the upper end face of the anti-loosening seat. The bottom of the anti-loosening base is fixedly connected with the workpiece mounting hole, and anti-loosening teeth are arranged at the bottom of the bolt head. After screwing, the bolt head, the elastic anti-loosening ring and the anti-loosening seat are meshed with each other to form an interlocking structure. When the bolt rotates, the anti-loosening teeth need to overcome the resistance of the anti-loosening face on the elastic anti-loosening ring, when the gradient of the anti-loosening face is smaller than 90 degrees and larger than a critical angle, loosening force generated when the bolt rotates cannot overcome the resistance of the anti-loosening face on the elastic anti-loosening ring, and therefore the bolt cannot cross the anti-loosening teeth, and non-return and anti-loosening are achieved. During disassembly, disassembly force larger than the resistance of the anti-loose teeth is provided, and damage-free disassembly can be achieved. When the gradient of the anti-loosening face is equal to or larger than 90 degrees, the structure is locked, and the anti-theft effect is achieved.

Description

technical field [0001] The invention relates to an anti-loosening mechanism, in particular to an interlocking bolt anti-loosening structure, which can effectively prevent loosening of threaded components. Background technique [0002] Bolt loosening is a problem that has plagued the mechanical field for a long time. Under static load, the friction force generated between thread pairs has self-locking ability, and the bolts will not loosen; however, under vibration conditions, the friction force between thread pairs disappears instantaneously, and loosening and gyrations occur between thread pairs. Contents of the invention [0003] In order to solve the problem of loosening of bolted joints, especially for fastening and anti-loosening of bolts under the condition of no nut (usually counterbore or blind hole), the present invention proposes an interlocking bolt anti-loosening structure. [0004] Inventive concept: install an elastic anti-loosening ring between the bolt and...

Claims

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Application Information

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IPC IPC(8): F16B39/26F16B39/282
CPCF16B39/26F16B39/282
Inventor 张家陶
Owner 张家陶
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