| 摘要 |
PURPOSE: To provide a liquid spraying assembly with a pre-compression pump that can reduce the number of parts comprising a dispensing head and simplifies assembling. CONSTITUTION: An Assembly includes a dispensing head 3 fixed onto a container 2. The dispensing head 3 is provided with two chambers 34 and 35 aligned on the same longitudinal axis and molded in a single body 33. The chambers 34 and 35 have been separated by a transverse partition 39. The first chamber 34 is closed by a piston 6 mounted so as to slide with respect to a rod 7, which carries, at its end opposite the piston 6, a point 71 whose seat is the opening 37 for communication between the first chamber 34 and the second chamber 35 provided to the partition 39. The first chamber 34 is connected to the container 2 by a non-return valve 9. The second chamber 35 is provided with a spray nozzle 11 that is located on a fixed wall and fixed by itself. |
