| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that, in a type of a water server which holds water in a lower part, a pump is put in a channel of the water and there is a risk that unwanted bacteria may be developed.SOLUTION: A water container 12 is placed in a lower part. The water container 12 includes a water bag 14 and an air bag 16. A pump 18 sends air to the air bag 16. Then, the air bag 16 swells, the water bag 14 is compressed, and water enters a cooling container 30 and a heating container 32 through a water pipe coupler 52 and a main water pipe 50. In addition, the water enters a temporary container 40. When a remaining amount in the temporary container 40 is small, a water amount sensor 44 detects it and a switch 58 is turned on. Thereby, electric power is supplied to the pump 18 and water pumping is executed. |
