Method for stretching folding shed

Abstract

The invention provides a method for stretching a folding shed. The method comprises the following steps of: starting laser distance measuring instruments to measure distances from a flexible frame to the body of an airplane; advancing an aerobridge perpendicular to the airplane and temporarily stopping the motion of the aerobridge for approaching the airplane to be butted when the aerobridge is at a certain distance away from the airplane; by the obtained distances measured by the plurality of laser distance measuring instruments and an actuator, controlling the deformation of the flexible frame, thereby guaranteeing that the deformed flexible frame and the shell of the airplane body to be butted have the same surface curvature; continuously controlling the aerobridge to advance and braking the aerobridge when the distance measured by the laser distance measuring instrument at the front end of a floor reaches a predetermined value; and controlling a winding mechanism to release an energy storage device by a controller to tightly press a butting frame on the shell of the airplane body. By using the method for stretching the folding shed, the sealing property and the safety are improved.

Description

technical field [0001] The invention relates to a method for unfolding a bellows, in particular to a method for unfolding a bellows device including a docking frame that can adaptively have a shape conforming to the curvature of the plane's surface before docking with the plane. Background technique [0002] Airplane boarding bridge is a piece of airport equipment commonly used by modern passenger aircraft. They are used as the entrance for boarding, allowing passengers to enter the interior of the passenger aircraft from the terminal building. This type of boarding bridge usually has a bellows device at its end, which bridges the space between the boarding bridge and the aircraft, so as to protect boarding personnel from adverse weather conditions. [0003] Patent document CN100355628C discloses a sealing device for aircraft passenger ladders or aircraft boarding bridges, comprising a bellows tensioned above a connection floor, wherein the bellows has a flexible frame on on...

AI Technical Summary

Problems solved by technology

The above two documents are still relatively single for the use of laser rangefinders

[0006] Therefore, the bellows device deployment method in the prior art generally has the following defects: due to the single force point of the energy storage device or the actuator, the flexible frame is difficult to adapt to various aircraft surface curvatures, and the flexibility and sealing performance are poor; Fitting the flexible frame tightly to the fuselage shell usually requires a relatively large force, which is easy to damage the fuselage shell. In addition, since the energy storage device or actuator usually starts to work after the bellows device touches the fuselage shell, it is easy to Due to its own failure or system error, the overload caused serious damage to the fuselage shell; the lack of real-time detection and alarm devices during the passenger boarding process has potential safety hazards

Images