| 摘要 |
The invention relates to a dispenser unit particularly suitable for a liquid container, including an air pump with an air cylinder and an air piston axially displaceable in the air cylinder, an air space defined between the air cylinder and the air piston, supply-closing structure for closing the air supply to the air pump, discharge-closing structure for closing the air discharge from the air pump, an axially displaceable activating element for activating the air pump, and an air inlet opening in the activating element, wherein the air inlet opening debouches in the air space, and at least a part of the air piston forms the supply-closing structure. |
