Lifting boarding car with high safety

Abstract

The invention relates to the technical field of aviation equipment and discloses a lifting boarding car with high safety. A chassis is included. Side supporting rods are fixedly mounted on the left and right sides of the front surface and the left and right sides of the back surface of the chassis; one end of the inner wall of the chassis is hinged to the bottom end of the front surface of a lowergangway ladder; and a step assembly is fixedly installed at the inner bottom of the lower gangway ladder, a rest platform is fixedly installed at the top end of the bottom of the lower gangway ladder, a sliding rod support is fixedly installed on one side of the top end of the chassis, an upper gangway ladder is slidably connected to the exterior of the sliding rod support, and the inner bottom of the upper gangway ladder is located at the bottom end of the lower gangway ladder and fixedly provided with the step assembly. According to the lifting boarding car with high safety, by arranging stepping assemblies, stepping plates and shock absorption springs are used for supporting and absorbing shock of people stepping on the stepping plates so that the vibration frequencies of different people stepping on the stepping plates and transmitted to the lower gangway ladder through the shock absorption springs are the same, a possibility that resonance is generated on the lower gangway ladderby stepping on the stepping plates is reduced, and therefore supporting stability of a hydraulic cylinder is guaranteed.

Description

technical field [0001] The invention relates to the technical field of aviation equipment, in particular to a high-safety lift boarding car. Background technique [0002] The boarding vehicle is a special vehicle working at the airport. It is used to set up a gangway connecting the ground and the cabin door for passengers to get on and off the plane. Its function is the same as the boarding bridge. According to the height of the aircraft, the boarding vehicle is generally designed as a retractable gangway, and the gangway is divided into two sections, one section is hinged with the chassis of the vehicle, and the bottom end of the other end is driven by a hydraulic cylinder to realize the lifting of the gangway. [0003] In the prior art, when the platform at the top of the gangway is docked with the cabin, the plane of the platform and the plane at the exit of the cabin are difficult to achieve co-planar docking, so that there is a height difference between the cabin door a...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a high-safety lift boarding car, which is equipped with height difference compensation between the boarding platform and the plane of the cabin, avoids the influence of many people's stampede vibration on the support of the hydraulic cylinder, and provides barrier-free assistance. It solves the problem that when the platform at the top of the gangway is docked with the cabin, the plane of the platform and the plane at the exit of the cabin are difficult to achieve co-planar docking, so that there is a height difference between the cabin door and the platform of the gangway, which makes it easy for passengers to stand on their feet when they get off the plane. On the other hand, the gangway pedals are fixedly connected, and the whole gangway is supported by hydraulic cylinder positioning. When a large number of people walk on the gangway at the same time, it is easy to cause human-made stepping on the ladder. The frequency of vibration and the ladder pedal The phenomenon of natural frequency resonance causes obvious vibration of the gangway, which has a great impact on the stability of the positioning support of the hydraulic cylinder. At the same time, when using the boarding vehicle to guide passengers to board the plane, it is relatively difficult for the disabled to use it.

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