An automatic opening flood control panel for subway entrances

Abstract

The invention provides an automatically opened subway entrance flood control plate, comprising a base, a water retaining plate is movably inserted into the interior of the base, the top of the water retaining plate is fixedly connected with a top plate, and the front of the water retaining plate is fixedly connected There is a side plate, an air cushion is fixedly installed inside the base, an air tank is fixedly connected inside the operation box, a sealing cap is threaded on the can on the right side of the air tank, and the movable plate is installed by a spring On the switch base, the inside of the switch base is filled with solid salt. The top plate is located on the ground, which prevents rainwater from pouring back when the rainfall is small. When the rainfall increases sharply and the water level rises beyond the set value, the rainwater enters the operation box and contacts with solid salt, which dissolves in water, making the gas tank When it is opened, the air cushion will expand after being filled with air, and the water retaining plate will be lifted up through the top plate, and at the same time, the gap outside the water retaining plate will be sealed to automatically prevent rainwater from pouring back.

Description

technical field [0001] The invention belongs to the technical field of rail transit safety, and in particular relates to an automatically opened subway entrance flood control panel. Background technique [0002] Since the subway runs below the ground, the entrance of the subway is slope-shaped, and the phenomenon of rainwater backflow is prone to occur in rainy days. Therefore, waterproof devices are installed at the entrance of the subway, and most areas use it at the entrance of the subway The method of adding steps and drains to protect the subway, the height of the steps in this method is limited, can only prevent the general amount of rainwater, in southern China and some coastal areas, there are often heavy rainstorms, especially when typhoons pass by, The rainfall increased sharply in a short period of time, and the drainage system was too late to fully drain, causing the water level at the subway entrance to rise too high, causing the subway passage to be submerged. ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides an automatically opened subway entrance flood control plate to solve the problem that the general flood control plate needs manual operation during use and the sealing plate has an unsatisfactory use effect

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