Fast-disassembly method of aeroplane access cover and bearing lock

Abstract

The invention discloses a fast-disassembly method of a small aeroplane access cover and a fast-disassembly bearing lock. The method is characterized in that an upper lock body with a pin is mounted onthe access cover; a lower lock body with a clamping groove is mounted on an airframe; in locking process, the upper lock body is inserted into the lower lock body, and the pin is clamped in the clamping groove under the action of a spring; in unlocking process, a bolt connected with the pin is rotated by a screwdriver, the pin overcomes the spring force to pull away from the clamping groove to enable the upper lock body to be drawn out from the lower lock body so as to achieve the purpose of the fast disassembly of the access cover. After being mounted on an aeroplane, the fast-assembly bearing lock can meet the requirement of fast opening and closing of the aeroplane access cove, facilitates the maintenance of the aeroplane, improves the maintenance efficiency of the aeroplane, shortensthe time for fast opening and closing the aeroplane access cover and shortens the time of replacing and maintaining the aeroplane equipment to be within 40 minutes. The invention has the advantages ofhigh fatigue strength, small volume, light weight, easy use and maintenance, fast disassembly, large transfer load, and the like.

Description

technical field [0001] The invention relates to a quick-release lock used on an aircraft, in particular to a quick-release method for an aircraft hatch and a force-bearing lock. Background technique [0002] In order to adapt to the requirements of modern warfare, it is required that the maintenance time of the aircraft should be able to meet the rapid requirements of modern warfare. The difficulty of opening the hatch cover of the aircraft is a problem left over from the design and is one of the frequent faults of the aircraft. In the past, a screwdriver was often inserted into the lower edge of the metal cover to pry it open, until the cover was deformed and partially torn. The deformation of the mouth cover is not good for the rainproof seal. What's more serious is that after the cover is made of composite material, hard prying is not allowed, especially after the rainproof sealant is applied, so it is more difficult to open. If the field maintenance is not used properl...

AI Technical Summary

Problems solved by technology

If the field maintenance is not used properly, the same method as opening the metal cover is adopted, and it is easy to partially pry or delaminate the composite material cover.

This material cannot be partially reinforced like a metal cover. If it is not done well, the large cover will have to be replaced, resulting in economic losses and aircraft attendance.

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