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Self-locking fastener

A fastener and self-locking technology, which is applied in the field of connecting tools for fixing the device to be fixed and the mounting frame, achieves the effect of reducing lateral clearance, ensuring reliability and increasing reliability

Inactive Publication Date: 2013-05-08
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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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 self-locking fastener that is easy to operate without using auxiliary tools during disassembly and assembly, and has good connection reliability and will not loosen when it is shaken, so as to solve the problem of existing connection tools. lack of

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] Figure 1~Figure 8 As shown, the self-locking fastener of the present invention includes a fastening screw 12, and one end of the fastening screw 12 is provided with a hinge hole for hinged connection with the mounting frame. Of course, the locking hook and the mounting frame 5 can also be used. For connection, a retaining ring 11 is riveted at the other end of the fastening screw 12. The fastening screw 12 is provided with a pair of mutually parallel anti-rotation mating surfaces 15 extending in the axial direction of the fastening screw. Of course, the anti-rotation mating surfaces may not be parallel to each other, and the number of anti-rotation mating surfaces is not limited to only one. Correct. The fastening screw 12 is provided with a lower gear sleeve 4 and an upper gear sleeve assembly in series, the lower gear sleeve 4 is located at an end close to the hinge hole, and the upper gear sleeve assembly is located at a position away from the hinge hole. The retai...

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Abstract

The invention relates to a self-locking fastener, comprising a fastening screw rod, wherein, one end of the fastening screw rod is provided with a connection structure used for being connected with the installation rack of equipment to be fixed; the position of the fastening screw rod near the connection structure is assembled with a lower sleeve gear slidably matched with the fastening screw rodin a rotation reducing way; the position of the fastening screw rod far away from the connection structure is screwed with an upper sleeve gear component which comprises an upper sleeve gear; a movable sleeve which is screwed on the fastening screw rod and is axially and movably matched with the upper sleeve gear is inserted into the upper sleeve gear in a rotation reducing way; a spring is axially pressed between the movable sleeve and the upper sleeve gear; the corresponding ends of the upper and the lower sleeve gears are provided with correspondingly matched ratch structures for preventing the upper sleeve gear from loosening; the end of the lower sleeve gear near the connection structure of the fastening screw rod is provided with a correspondingly matched fastening surface of the fastening structure on the panel of the equipment to be fixed. The self-locking fastener can quickly and conveniently fixedly connect the equipment and a fixing rack, and ensures the reliability of the connection simultaneously.

Description

Technical field [0001] The invention relates to a self-locking fastener, in particular to a connecting tool for quickly fixing a device to be fixed with a mounting frame. Background technique [0002] In some special application areas, such as airplanes, special vehicles or ships, electronic equipment can be quickly disassembled and assembled during use and maintenance. At present, there are mainly two connecting tools used to fix electronic equipment in the above-mentioned fields: one is a connecting tool that can be disassembled and assembled without using other auxiliary tools, but this kind of connecting tool is easy to loosen when subjected to vibrations. Disengagement cannot guarantee the reliability of the connection; the other is a connection tool that requires auxiliary tools to perform disassembly and assembly operations, but this type of connection tool is complicated to operate and cannot meet the requirements of rapid disassembly and assembly. Summary of the inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R11/00
Inventor 王宛生杨会杰张进朱晓刚
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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