Mechanically operated liquid pump

摘要

A mechanically operated liquid pump (1) comprises a housing (2) with an expandable elastic element (16), a closeable access and exit for the liquid from the elastic element, and a flow limiting unit. The elastic element is in the form of a balloon, and has an opening. A core is located inside the housing and is inserted into the balloon via the opening. The end of the balloon is fastened and sealed.