| 摘要 |
PROBLEM TO BE SOLVED: To provide an ejection head of a pump that ejects a liquid stably at any time, has excellent drainage properties, has superior hermeticity of the ejection port and is cable of stably ejecting the liquid for a long term usage, wherein the ejection pump head is the push-down type pump head attached to the pump allowing a stem 2 to stand up so that the stem 2 is able to be pushed-in at upwardly energized state. SOLUTION: The push-down pump head is provided with a body 3 having a valve chamber A connected with the inside of the stem 2 and opened at the head top as an ejection port 8, a valve member 4 that closes the ejection port at forwardly energized state and forms a channel from a contact port 14 connected with the inside of the stem to the ejection port, a lever member 5 that has a specific structure linked with the valve member and a cover 6 that is inserted so that it is possible to be pushed-down relatively with the body and the lever member, which are coated with the cover 6 so that the liquid can be ejected. Thus, the upper part of the lever member is pushed-down, then the valve member is retreated by pushing down the cover and the ejection port 8 is closed. |
