Embedding steel pipe valve port valve

Embedding steel pipe valve port valve, including embedded valve main part, the valve main part is well siphunculus type, the admit air steel pipe and the steel pipe of giving vent to anger are connected respectively through the screw thread in the both ends of valve main part, the outer wall of said valve main part encircles and is provided with round helping hand cover, and the inner wall of valve main part encircles and is provided with the round endotheca, the endotheca front end is equipped with one round platform shape shell fragment, the front end of shell fragment is equipped with ring shape rubber pad, the phase-match is described with the toper of blocking in the steel pipe that admits air to the rubber pad, block the awl and locate the steel pipe inner wall that admits air through the fixed bolster, be equipped with the through-hole in the middle of the fixed bolster.