Central drainage equipment for a tank which prevents backflow

Abstract

The utility model relates to the technical field of storage tank drainage equipment, especially to a storage tank central drainage equipment capable of preventing backflow, which comprises a storage tank body, a connecting pipe one is fixedly connected to the right side of the storage tank body, a connecting assembly is fixedly connected to the right end of the connecting pipe one, a connecting pipe two is fixedly connected to the right end of the connecting assembly, a butt joint assembly is fixedly connected to the outer surfaces of the connecting pipe one and the connecting pipe two, two front and rear distributed fixing blocks are fixedly connected to the upper part of the outer surface of the connecting pipe one, and a backflow prevention assembly is movably connected to the opposite surfaces of the two fixing blocks through a rotating shaft. The utility model sets up the backflow prevention assembly to realize reliable backflow prevention and reduce cost through mechanical structure, and through the pressure structure such as side sealing ring plate and detachable cover plate design, realizes the convenient installation and removal sealing and maintenance of connecting pipe and connecting assembly, guarantees the drainage effect and sealing property.