| 摘要 |
Dosing arrangement for liquid or semi-liquid substances. The dosing arrangement has a dosing chamber 10 which is delimited by an elastic wall 8 and, at an upper end, can be connected to a downwardly directed outlet opening of a storage container for the desired substance. Arranged at the upper end of the dosing chamber is a non-return valve 24 and at the lower end of the dosing chamber a discharge valve for the substance. The discharge valve is formed by an outlet duct 23 which is located below the dosing chamber, is also formed by a wall consisting of elastic material and at the bottom has at least one outlet opening 20. Arranged in the outlet duct is a valve body 18, against which the elastic wall of the outlet duct bears in a sealing manner in the inactive state of the dosing arrangement. When the dosing arrangement is active, the elastic wall is pressed out of engagement with the valve body so that a connection is established between the dosing chamber and the outlet opening. <IMAGE> |
