Anti-rolling tank and driver of air valve thereof

The utility model discloses an anti-rolling tank and a driver of an air valve of the anti-rolling tank. The defects that due to air source faults of a current anti-rolling tank, the air valve cannot normally work, and the rolling increasing effect is prone to being generated are overcome. The driver comprises a double-acting air cylinder and a piston, the piston is arranged in a rod cavity of the double-acting air cylinder, and the double-acting air cylinder further comprises a rodless cavity. A partition is arranged between the rod cavity and the rodless cavity. The driver further comprises a stop rod, the stop rod comprises a thread segment and a polish rod segment, and the thread segment is in threaded connection with a cylinder body of the air cylinder and can rotate. The polish rod segment penetrates through the rodless cavity of the air cylinder and the partition, stretches into the rod cavity of the air cylinder and is sealed with the partition. When the air source fails, it is ensured that the air valve is in the closed state, and the rolling increasing negative effect on transverse rolling of a ship is prevented.