| 摘要 |
According to the present invention, a push pump for an airtight container comprises: a body wherein a lower outlet on a lower end is formed to be penetrated up and down to be in close with an upper end of a valve installed in a container and a flow path connected to the lower outlet is extendedly formed upwardly; a push member installed to be moved to the inside through an upper end of the body in a state of covering the outside of the flow path; a piston dividing the inside of the push member into an upper space and a lower space in a state of being coupled to an upper end of the flow path, and interconnecting the upper end of the flow path with the lower space; and an elastic member elastically supporting a lower end of the push member upwardly inside the body, and in case of pushing the push member, transferring air to the lower space through the lower outlet and the flow path. |
