Subway entrance flood prevention plate capable of being automatically opened

Abstract

The invention provides a subway entrance flood prevention plate capable of being automatically opened. The subway entrance flood prevention plate comprises a base, a water baffle is movably inserted into the base, a top plate is fixedly connected to the top of the water baffle, a side plate is fixedly connected to the front face of the water baffle, an air cushion is fixedly installed in the base,an air tank is fixedly connected into an operation box, a plugging cap sleeves the can on the right side of the gas tank in a threaded mode, the movable plate is installed on a switch base through aspring, and the switch base is filled with solid salt. The top plate is located on the ground and plays a role in preventing rainwater from flowing backwards when rainfall is small, when the rainfallsuddenly increases and the water level rises to exceed a set value, rainwater enters the operation box and makes contact with solid salt, the solid salt is dissolved when meeting water, the air tank is opened, the air cushion expands after being filled with air, the water baffle is jacked upwards through the top plate, meanwhile, gaps in the outer sides of the water baffles are sealed, and the effect of automatically preventing rainwater from flowing backwards is achieved.

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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