An aviation anti-removal external hexagonal screw device

Abstract

The invention discloses an aviation anti-disassembly hexagon screw device, which comprises a bolt cap assembly and an anti-disassembly seat assembly; the bottom surface of the bolt cap assembly is welded with a limit ring, and a screw is vertically welded on the bottom surface of the limit ring; The anti-dismantlement seat assembly is an annular seat structure, which is sleeved on the outside of the bolt cap assembly, and the bottom surface of the anti-dismantlement seat assembly forms extrusion contact with the top surface of the limiting ring; the bottom surface of the limiting ring is also spot welded A piece of anti-loosening pad, and the bottom surface of this anti-loosening pad is also provided with a circle of anti-skid lines; the bolt cap assembly is an outer hexagonal style, and the spring sheet can be compressed by using an external six-point flat-blade screwdriver to insert the spring sheet to make the tamper-proof The seat is removed, so that the hexagon of the bolt cap leaks out, and the bolt is restored to the original application state of rotating and unscrewing. Since the removal method uses six flat-blade screwdrivers to assist the removal, it is unexpected for ordinary people, so the bolt has anti-removal functional characteristics, but at the same time have hidden demolition characteristics.

Description

technical field [0001] The invention relates to the technical field of bolt structures, in particular to an aviation disassembly-resistant external hexagonal screw device. Background technique [0002] Bolt: A mechanical part, a cylindrical threaded fastener with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which needs to be matched with a nut to fasten two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. In some special occasions, the bolts used are directly threaded on the connecting piece, and there is no need to use a nut lock. At the other end, this kind of bolts is often longer in size. For example, the bolts used in aviation equipment are long rods, which are much longer than the standard bolts. In the hole, the two parts are connected together. Due to the particularity o...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of anti-disassembly external hex screw device for aviation, to solve the anti-disassembly ring and the anti-disassembly structure of the anti-loosening structure installed on the inner end of the bolt disclosed in the above-mentioned background technology. The so-called fried chips cannot be threaded together with the long screw rod into the long threaded hole opened on the equipment, so this anti-demolition and anti-loosening method cannot be adapted to the long-screw-type bolt fixing mentioned in this design. Due to the installation method of the long threaded hole, the fried chips disclosed by it can be exploded with the screw rod extending into the wall, which is obviously ideal and difficult to achieve

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