Aircraft freight cabin door positioning and guiding structure

Abstract

The invention belongs to the technical field of aircraft structure design and particularly relates to an aircraft freight cabin door positioning and guiding structure. The structure comprises a cabin door (1), a sliding rail assembly (2) and an uplatch (3). The cabin door (1) is hinged to an aircraft body, the sliding rail assembly (2) is mounted on the aircraft body and the cabin door (1), and the uplatch (3) is mounted on the aircraft body and the cabin door (1). According to the structure, stable and reliable positioning and guiding of the aircraft freight cabin door are achieved.

Description

technical field [0001] The technical invention belongs to the technical field of aircraft structure design, and in particular relates to a positioning and guiding structure of an aircraft cargo cabin door. Background technique [0002] In domestic and foreign transport aircraft, most of the aircraft cargo doors adopt a double-door structure that opens up and down. Cargo hoisting equipment is added to the outer surface of the cabin door. Transport aircraft with double-door structure usually have the following technical problems: [0003] 1. The cargo door is located at the large opening of the fuselage. The rigidity of the fuselage in the opening area is relatively small, and there are different degrees of deformation under various load conditions. It is difficult to coordinate the gap between the cargo door switch and the large opening, which requires cumbersome and complicated Control the debugging and experiment process; [0004] 2. The cargo door is opened and closed o...

AI Technical Summary

Problems solved by technology

[0003] 1. The cargo door is located at the large opening of the fuselage. The rigidity of the fuselage in the opening area is relatively small, and there are different degrees of deformation under various load conditions. It is difficult to coordinate the gap between the cargo door switch and the large opening, which requires cumbersome and complicated Debugging and experimental process control;

[0004] 2. The cargo door is opened and closed on the ground or in the air. The reliability of precise locking is not high, and it is prone to problems such as insufficient locking and difficulty in opening and closing the door.

[0005] 3 Hoisting equipment is installed on the outer surface of the cargo door, and the cargo door will swing laterally when the cargo is hoisted;

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