Self-closing dispensing head

摘要

The head (1) has a locking element formed as a movable piston (6) with centering shoulders, which are movable with the piston and provided on a piston lateral surface. A set of flow through areas is provided between the shoulders. An elastic spring region is provided at a front end of the piston, where the end is turned away with a feed inlet (3). A head piece has round cross-section, and an actuator (7) slides into opening and/or closing position during opening and closing movement of the piston at the head piece, where the cross-section of the head piece is adapted to a path of the actuator.