| 摘要 |
PURPOSE:To prolong the living period of a fish, by supplying air and oxygen respectively filled in vehicle tires to a water tank from a supply line having a valve and a gas purifier interposed thereto. CONSTITUTION:Vehicle tires 4, 5, respectively, filled with air and oxygen are connected to a water tank 1 through supply lines having valves 7, 2 and a gas purifier 6 interposed thereto, that is, pipes 10, 10, a bifurcated pipe 8, a pipe 9 and a drain pipe 3. The connection metal fittings 11 connected to air valves 16, 16 in a detachable manner are mounted to the pipes 10, 10 in a rotatable manner. When the cylindrical parts 12 of the connection metal fittings 11, 11 are threaded with the valve cylinders 17 of air valves 16, valve opening rods 14 deeply push in valve stems 18 to open the air valves 16 and air and oxygen filled in the vehicle tires are respectively flowed in the pipes 10, 10. At this time, the amount of oxygen can be regulated by opening and closing an oxygen valve 7. Further, because air and oxygen have been subjected to dehumidification, degreasing and dust removal by the gas purifier 6, the water of a water tank is not contaminated. |
