| 摘要 |
An air supply apparatus of the underwater is provided to inject external air into water filled into a water tank by using the falling energy of the water without using power and to be installed on a side wall of a water tank easily. An air supply apparatus of the underwater includes a water supply pipe(1) and an air inflow unit(2). The water supply pipe is installed on a side wall(31) of a water tank(3). The air inflow unit(2) is installed at the inside of the discharge side of the water supply pipe(1), discharges the water inside the water tank(3), and makes external air flow into the water tank(3). The water supply pipe(1) includes a side wall penetrating slant pipe that penetrates the side wall(31) of the water tank(3), and is slant upwardly in a direction of the inner end portion. |
