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Bolt-contained fastening device different to fall by long-time vibration

A bolt fastening device and nut technology, which is applied to threaded fasteners, bolts, locking fasteners, etc., can solve problems such as falling off, potential safety hazards, and easy loosening of mechanical fastening devices, so as to prevent loosening Shedding effect

Inactive Publication Date: 2017-07-11
廖华勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In a long-term vibrating working environment, common mechanical fastening devices are easy to loosen or even fall off, posing safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 is mainly composed of a single-head bolt, main body part 1, main body part 1 clockwise rotation thread, main part 1 mating nut, main body part 2, main body part 2 anti-rotating thread, main body part 2 mating nut, and distance adjustment sleeve, wherein:

[0021] 1. The first part of the main body is closer to the center point of the whole screw, and the second part of the main body is closer to the tail of the screw;

[0022] The thickness of the crest of the main body part 2 is smaller than the thickness of the bottom of the main body part 1, so as to ensure that the matching nut of the main body part 1 can pass through the main body part 2 straightly and freely;

[0023] The rotation directions of the two segments of the main body part one forward thread and the main body part two reverse thread are opposite to each other.

[0024] 2. The connection between the first main body and the second main body is a cliff-like section.

[0025] 3. Embodiment 1 do...

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PUM

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Abstract

The invention discloses a bolt-contained fastening device different to fall by long-time vibration, relates to the field of machinery, and in particular, belongs to an all-machinery fastening device. The invention aims to provide a bolt for preventing a nut from loosening and falling. In order to realize the purpose, the device at least comprises two sections of screw rods with different thicknesses and matched nuts, namely, at least comprising a main body part 1, a main body part 1 forward rotating thread, a main body part 1 matching nut, a main body part 2, a main body part 2 reverse rotating thread and a main body part 2 matching nut, wherein the main body part 1 is nearer the center point of the whole screw rod; the main body part 2 is nearer the tail of the screw rod; the crest thickness of the main body part 2 is smaller than the root thickness of the main body part 1 to guarantee that the main body part 1 is matched with the nut to straightly and freely penetrate through the main body part 1. The device has the advantage of preventing loosening and falling of the nut.

Description

technical field [0001] The invention relates to the mechanical field, in particular, it belongs to an all-mechanical fastening device. Background technique [0002] In a long-term vibrating working environment, common mechanical fastening devices are easy to loosen or even fall off, posing safety hazards. . Contents of the invention [0003] The purpose of the present invention is to provide a kind of bolt that prevents the nut from loosening and falling off. In order to achieve the above object, the present invention adopts the following technical solutions: [0004] One, the structure of the present invention is as follows: [0005] 1. The present invention belongs to a bolt-containing fastening device that is hard to come off after a long period of shock, and is characterized in that: [0006] 2. A bolt-containing fastening device that is hard to come off after a long time, is characterized in that it includes at least two sections of screw rods with unequal thicknes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/02F16B39/18
CPCF16B39/02F16B39/18
Inventor 廖华勇
Owner 廖华勇