Drainage structure of airplane cabin door

Abstract

The invention provides a drainage structure of an airplane cabin door. The drainage structure comprises a drainage bottom tank, a water retaining bar, a drainage tube and a check valve, wherein the drainage bottom tank comprises a tank base as well as a water collecting tank, a drive chamber and a water retaining tank which are arranged in the length direction of the tank base; a tapered hole is formed in the bottom of the water collecting tank; the drainage tube is fixedly connected with the bottom of the tapered hole; the check valve is connected in series onto the drainage pipe. According to the drainage structure of the airplane cabin door, complete sealing can be realized when the tapered hole is plugged by a tapered seal head, automatic seal is realized when the cabin door is closed, normal air pressure is ensured,and safe take-off is guaranteed; when the airplane cabin door is opened, drainage is realized automatically, and water droplets at the edge of the cabin door are also blocked under the action of the water retaining bar, and water cannot be accumulated.

Description

technical field [0001] The invention relates to a drainage structure, in particular to a drainage structure for an aircraft cabin door. Background technique [0002] With the prosperity of the economy, the continuous improvement of people's living standards, the development of production technology is getting better and better, and people's requirements for travel safety and comfort are getting higher and higher. Airplanes are a relatively convenient and fast way of travel. One of the methods is that the aircraft will inevitably encounter water ingress during the opening process of the cabin door. Therefore, a drainage structure is added to the cabin door of the aircraft. Negative Effects. In the current technology, a skin with small holes is provided at the lower end of the fuselage to guide the water out of the cabin, but it will also affect the air pressure in the flight of the aircraft, the safety is not high, and there will be accumulated water that cannot be drained c...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the air pressure in the flight of the aircraft will be affected in the current technology, the safety is not high, and there will also be the situation that the accumulated water cannot be drained cleanly.

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