Ball valve type nipple drinker

The utility model belongs to the technical field of automatic livestock breeding equipment, and particularly relates to a ball valve type nipple drinker which comprises a shell and a valve cover, one end of the valve cover is located at the top of the shell, a sealing piece is arranged between one end of the valve cover and the top of the shell, the other end of the valve cover extends into the shell, and the valve cover is arranged in the shell. A ball valve is installed in a cavity in the other end of the valve deck, and the sealing piece is a rubber ring. The shell is provided with a groove for installing the sealing piece, the top of the sealing piece makes contact with one end of the valve deck, the bottom of the sealing piece is pressed into the groove in the top of the shell, the outer side of the sealing piece makes contact with the inner side of a cavity of the water fountain fixing base, and the water fountain fixing base is connected to the outer side of the shell and the outer side of the top of t