Flood discharge valve convenient to disassemble

The utility model relates to the technical field of flood discharge valves, in particular to a flood discharge valve convenient to disassemble. According to the technical scheme, the device comprises a mounting frame, limiting blocks and a fixing sleeve, the limiting blocks are slidably mounted on the two sides of the inner wall of the mounting frame, a sealing groove is formed in the bottom of the mounting frame, a sealing plate is slidably mounted in the sealing groove, a gate is slidably mounted on the inner side of the mounting frame, and a fixing block is fixed to the top of the gate through a clamping plate in a limiting mode; the front end of the fixing block is fixedly connected with a fixing sleeve. Through mutual cooperation of the fixing sleeve, the clamping plate, the limiting block and the second sliding groove, the gate can be taken out conveniently, the situation that a threaded sleeve in the fixing sleeve is engaged with a threaded rod for a long time, and consequently thread sliding is caused