Sealing device

Abstract

The invention provides an awning device for boarding bridge. The awning device comprises a door-shaped frame, a butt joint frame and a telescopic floor plate, wherein the telescopic floor plate comprises a telescopic part which is positioned on the front end, the telescopic part utilizes a first actuator to realize stretching, the butt joint frame comprises a hard frame and a soft frame, a collecting and releasing mechanism and an energy storage device are connected between the door-shaped frame and the hard frame, and distance meters are respectively arranged on the two side end parts of the front end of the telescopic part of the floor plate and the two side branches of the flexible frame; and a plurality of second actuators are connected between the hard frame and the soft frame, the number of the second actuators is same with the number of the distance meters which are arranged on the flexible frame, and moreover, the hinged points of the second actuators and the flexible frame which are adjacent to each other and the mounting points of the laser distance meters are basically kept on a same horizontal line. The awning device is utilized to improve the sealing performance and safety.

Description

technical field [0001] The present invention relates to a sealing device, in particular to a canopy device used for a boarding bridge, and in particular to a canopy comprising a docking frame which can adaptively have a shape conforming to the curvature of the surface of the plane before it is docked with the plane canopy device. 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 canopy device at its end, which bridges the space between the boarding bridge and the aircraft, so as to protect the boarding personnel from the influence of bad weather conditions. [0003] Patent document CN100355628C discloses a sealing device for aircraft passenger ladders or aircraft boarding bridges, comprising a bellows tensioned abo...

AI Technical Summary

Problems solved by technology

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

[0006] Therefore, the canopy device in the prior art generally has the following defects: due to the single point of application 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 are poor; The frame fits closely to the fuselage shell, and the force usually exerted is relatively large, which is easy to damage the fuselage shell. In addition, since the energy storage device or actuator usually starts to work after the awning device touches the fuselage shell, it is easy to cause damage to the fuselage shell by itself. Faults or system errors cause overload, which seriously damages the fuselage shell; there is a lack of real-time detection and alarm devices during the passenger boarding process, posing safety hazards

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