Cabin door lock

Abstract

The invention belongs to design technologies of door lock mechanisms of aircraft cabins and particularly relates to a novel cabin door lock. The current status of an existing cabin door lock mechanism is a combination of a planar four-bar linkage mechanism and a slider-crank mechanism, the structure of the cabin door lock mechanism is dispersed, and the occupied space is large; design is performed according to specific types as required so that the universality performance is poor; a lock handle protrudes from the surface of an aircraft body, and accordingly the attractiveness of the appearance is affected; other structures need to be designed for insurance and accordingly the reliability is affected. The novel cabin door lock is characterized by comprising a lock frame, an inner handle, an outer handle, a fastener, a sliding piece, a locking piece, a key lock, a gas spring and the like, an embedded handle is utilized in the novel cabin door lock, and the inner handle and the outer handle do not protrude from the surface of the cabinet door when the cabin door is locked; the structure is compact, the size is small, the weight is light, the structure is ingenious and reasonable, and the transmission efficiency is high; double insurance is utilized both in opening and locking, the operation is simple and labor-saving, and accidental opening of the cabin door can be prevented, and accordingly the reliability and the safety of the opening and the closing of the cabin door can be guaranteed; the novel cabin door lock is applicable to various small-sized aircrafts and high in universality and can greatly reduce the costs of the products through mass production.

Description

technical field [0001] The invention belongs to the design technology of an aircraft cabin door lock mechanism, and in particular relates to a cabin door lock. Background technique [0002] The cabin door lock is a lock mechanism installed on the cockpit door or the passenger cabin door of a small aircraft to realize the opening and locking functions of the cabin door. For small aircraft, because of its small overall structure, the cabin door will not be very large. In addition, small aircraft are mostly used for sightseeing and travel, and require larger windows, resulting in a very limited design space for the cabin door lock. On the other hand, in order to ensure the reliability of the locking of the cabin door, the lock pin needs to ensure that there is sufficient stroke, which leads to the fact that the lock mechanism cannot be too small. [0003] The current status of the existing cabin door lock mechanism is a combination of a planar four-bar linkage mechanism and a ...

AI Technical Summary

Problems solved by technology

[0003] The current status of the existing cabin door lock mechanism is a combination of a planar four-bar linkage mechanism and a crank slider mechanism, which has a scattered structure and takes up a lot of space; it needs to be designed according to the specific model, and the versatility is poor; the lock handle protrudes from the surface of the fuselage, affecting the shape Aesthetics; other structures need to be designed for insurance, and reliability is affected

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