| 摘要 |
PROBLEM TO BE SOLVED: To effectively discharge fluid of high viscosity such as a gel, cream and the like. SOLUTION: This fluid discharge pump 1 comprises a cylinder 11, a piston 12 which can move in a reciprocating manner inside the cylinder 11, and a cylindrical member 13. A valve element 21 made of a steel ball is disposed at a lower part of the cylinder 11. A spring 22 is provided between the valve element 21 and a support member 14, and the valve element 21 is energized toward a valve seat constituted by an opening formed at a lower end of the cylinder 11. A pair of valve elements 31, 32 each made of a steel ball and a spring 33 which energizes the valve elements 31, 32 in the direction in which they are separated from each other are provided inside the cylindrical member 13. The valve element 31 is abutted against a valve seat constituted of a tapered part of the cylindrical member 13, and the valve element 32 is abutted against a valve seat constituted of an opening formed at a center of a flange part of the cylindrical member 13. |
