| 摘要 |
<p>The present invention relates to a washstand drainage blocking system for a railway vehicle. More specifically, the washstand drainage blocking system comprises: a drain pipe blocking a valve installed to be capable of being opened and closed in a drain pipe, having a blocking layer receiving pneumatic pressure inside the layer to swell up to block the drain pipe; a pneumatic control valve connected to a compressor of a railway vehicle supplying the pneumatic pressure inside the drain pipe blocking valve or exhausting; and a control unit connected to a network of the railway vehicle, and controlling the pneumatic control valve. Therefore, a toilet can have a pleasant environment due to preventing an aerodynamic noise and the present invention prevents a passenger from being damaged, preventing stains of an inner panel of the toilet due to a backflow of a washstand; and the present invention can easily be installed and assembled in an existing washstand drain facility, having a simple structure in order to reduce a time required for maintenance and costs in accordance with the washstand drainage blocking system, and prevents an external pressure wave from being introduced through the drain pipe of the washstand to generate aerodynamic noise and sewage backflow when the railway vehicle travels at high speeds.</p> |
