Two flap valve valve body structures

The utility model discloses a two flap valve valve body structures, the valve body upper end is provided with the valve rod mounting hole and only stops a mounting hole, the lower extreme is provided with the corresponding blind hole in position, valve rod and only stop the axle respectively from valve rod mounting hole and only stop a mounting hole and pass, and insert in the corresponding blind hole, one end trompil at the valve body, and an other end open -blind hole, the quantity of thru hole on the valve body has been reduced, improving the sealing performance, and simultaneously, at fastening bolt and valve rod with only stop that the crimping has the spring between the axle, when the valve rod with only stop the axle and corrode, the wearing and tearing back, under acting force of spring, automatic top is tight, the valve rod and only stop the axle the activity gesture can not warp, can continue to use, be provided with the rubber packing ring in the mounting hole, and the internal diameter of rubber packing ring is lighter than the valve rod and only stops the outside diameter of shaft, thereby the leakproofness is stronger, satisfy user's user demand.