| 摘要 |
A fluid pumping device is provided to constitute a pumping structure to be very simple and compact to simplify the assembling and manufacturing process and to reduce the manufacturing cost. A fluid pumping device includes a cap(30), a variable chamber(10) and a pressurizing head(20). The cap is provided to communicate with a vessel portion(100) in which the content is filled. The variable chamber is installed on the cap, and a crease portion(12) on the side of the variable chamber. A first check valve(15) is integrally installed on a part adjacent to the cap. The pressurizing head is movably coupled to the upper end of the variable chamber. The variable chamber includes a first mounting portion(13) coupled to the pressurizing head and a second mounting portion(14). |
