Aviation anti-disassembly outer hexagonal screw device

Abstract

The invention discloses an aviation anti-disassembly outer hexagonal screw device. The device comprises a bolt cap assembly and an anti-disassembly seat assembly. A limiting ring is welded to the bottom face of the bolt cap assembly, and a screw is perpendicularly welded to the bottom face of the limiting ring. The anti-disassembly seat assembly is of an annular seat structure and is arranged on the outer side of the bolt cap assembly in a sleeving mode, and the bottom end face of the anti-disassembly seat assembly makes extrusion contact with the top face of the limiting ring. An anti-loosening pad is further arranged on the bottom face of the limiting ring in a spot welding mode, and a circle of anti-skid lines are further arranged on the bottom face of the anti-loosening pad. The bolt cap assembly is of an outer hexagon type, the anti-disassembly seat can be disassembled in the mode that a spring piece can be compressed after the bolt cap assembly is inserted into the spring piece by using six external plain-end screwdrivers, the outer hexagon of the bolt cap is exposed, and the bolt cap assembly recovers to the original application state that a bolt is screwed out in a rotatingmode. Due to the fact that the dismantling mode is that the six plain-end screwdrivers are adopted to assist in dismantling, it is unexpected for general personnel, and the bolt has the anti-dismantling function characteristic and meanwhile has the hidden dismantling characteristic.

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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