High-intensity quick-disassembly fastener for airplane covering cap

Abstract

The invention discloses a high-intensity quick-disassembly fastener for an airplane covering cap, and the fastener is composed of a cylindrical nut component with an inner four-line screw thread and a double-lug moving base component with an outer four-line screw thread; the cylindrical nut component includes a cylindrical four-line screw thread nut, a washer and an elastic damping ring, the cylindrical four-line screw thread nut passes through a hole on an upper sandwich plate, the other side of the cylindrical four-line screw thread nut is successively sleeved with the washer and the elastic damping ring; the double-lug moving base component includes a bush, a four-line screw thread bolt, an outer spring, an inner spring, a first toothed washer, a second toothed washer and a support plate, the bush is successively provided with the second toothed washer, the first toothed washer, the outer spring and the inner spring from the bottom to the top; the four-line screw thread bolt is fixedly arranged on the upper part inside the bush; the bush is fixedly installed on the support plate. The fastener is quickly opened and privately designed, high in anti-shearing intensity, strong in anti-loosening performance, and excellent in corrosion resistance.

Description

technical field [0001] The invention relates to a high-strength quick-release fastener for an aircraft hatch. Background technique [0002] At present, the connection of the aircraft cover is mainly a load-bearing quick-release lock with double threads, which can ensure the quick opening or closing of the cover. However, the force-bearing quick-release lock currently used has the failure of the stop washer and the lock failure during use. This phenomenon leads to the failure of the two-wire bolt assembly. It needs to be screwed in after a single piece of manual alignment, which will not achieve the effect of quick installation, delay unnecessary time, and the aircraft cannot take off quickly in an emergency. Contents of the invention [0003] The problem to be solved by the present invention is to overcome the deficiencies in the above-mentioned prior art, provide a method to meet the functional requirements of the fast opening and fast closing of the aircraft flap panel, ...

AI Technical Summary

Problems solved by technology

[0002] At present, the connection of the aircraft cover is mainly a load-bearing quick-release lock with double threads, which can ensure the quick opening or closing of the cover. However, the force-bearing quick-release lock currently used has the failure of the stop washer and the lock failure during use. This phenomenon leads to the failure of the two-wire bolt assembly. It needs to be screwed in after a single piece of manual alignment, which will not achieve the effect of quick installation, delay unnecessary time, and the aircraft cannot take off quickly in an emergency

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