Storage tank for tea beverage filling

The utility model relates to the technical field of tea beverage storage, and discloses a storage tank for tea beverage filling, which solves the problems that a sealing cover and a storage tank are in threaded connection, so that the sealing performance between the sealing cover and the storage tank is poor, raw materials are easy to be polluted by bacteria, and the tea beverage is spoilage. An electromagnetic valve is mounted at the bottom end of the storage tank, a filling head is mounted at the bottom end of the electromagnetic valve, a feeding connecting pipe is mounted on one side of the storage tank, and a sealing cover is mounted at the top end of the storage tank; by arranging the connecting rod, the lead screw, the worm gear, the worm and other assemblies, downward movement of the push plate can be achieved, due to the fact that the push plate is of a cone frustum structure, the downward movement of the push plate extrudes the air bag ring, the air bag ring makes close contact with the inner wall of