| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid supply device which may inject a liquid without flowing the liquid through a valve after the liquid is lifted to a tank at a predetermined height by using an air pump.SOLUTION: A liquid supply device 1 includes: a liquid supply part 2 in which a liquid is stored; a liquid lifting tank 4 which is provided at a position higher than the liquid supply part; a liquid lifting pipe 3 where one end is inserted into the liquid in the liquid supply part and the other end is connected with the tank; an air pump 10 which decompresses the tank; and a liquid injection pipe 5 where one end is connected with the liquid lifting tank and the other end is open at a position lower than the one end. A liquid storage part 5c which bends downward is provided between the one end and the other end in the liquid injection pipe 5. The liquid is sealed in the liquid storage pipe 5c to allow the liquid storage pipe 5c to function as a valve. |
