| 摘要 |
The invention relates to a dispensing unit, particularly suitable for a liquid container, comprising an air pump with an air cylinder and an air piston (31), wherein an air chamber (32) is defined between the air cylinder and the air piston, a liquid pump with a liquid cylinder and a liquid piston (24), wherein a liquid chamber (30) is defined between the liquid cylinder and the liquid piston, an axially displaceable activating element (36) for activating the pumps, supply-closing means (50) for closing air supply to the air pump, and discharge-closing means (51) for closing air discharge from the air pump, wherein the air piston and the liquid piston are movable in axial direction relative to the activating element in order to form the supply and discharge-closing means for air.
|
