Overturning structure of plate type check valve

An overturning structure of a plate type check valve comprises an upper valve body, a lower valve body and an overturning plate, an annular column is arranged at the center of the second installation end of the lower valve body, a water inlet groove is formed in the annular column and communicated with the water inlet end of the lower valve body, two connecting bases are arranged on the inner wall of the second installation end, connecting grooves are formed in the surfaces of the connecting bases, and a rotating shaft is installed between the connecting grooves. A plurality of clamping blocks are arranged on the end face of the upper portion of the connecting base, clamping grooves are formed between the clamping blocks, positioning blocks are clamped in the clamping grooves, the positioning blocks position the rotating shaft, and a plurality of ribs are arranged on the surface of the inner wall of the first mounting end of the upper valve body. And the rib is pressed against the positioning block to realize