Verschluß zur dosierten Abgabe von Flüssigkeit

摘要

The invention concerns a closing unit for dispensing precise quantities of a liquid (3) from a compressible container (1), with an outlet aperture (6) and a flooding chamber (7), a valve slide (11) is mounted in the flooding chamber so as to slide axially and is provided with two valve disks connected by a spacing rod (24). One of the disks acts as a valve closing disk (14) and the other as a valve opening disk (12), and the valve opening disk (12) is allocated a supporting surface which is separated from the flooding chamber (7). The valve slide (11) is held by spring pressure in a position in which the valve opening disk (12) is in a closure position in relation to the outlet aperture (6). As an improvement, it is proposed that the spring should be a plastic tension spring.