MANUAL PUMP FOR LIQUID DISTRIBUTION Russian patent published in 2004 - IPC

FIELD: liquid distribution equipment. SUBSTANCE: pump for liquid supplying from vessel has hollow body with annular channel formed on the first end thereof and opened towards inner space of pump body, pumping channel arranged in hollow cylindrical body and extending radially outwards. Pumping channel communicates with annular channel through orifices. Pump has connection means for pump securing to vessel with liquid, pumping member formed as elastically flexible cap-shaped diaphragm with cavity faced to channel and convexity directed towards connection means for pump connection to vessel and rotating lever joined to diaphragm convexity. Diaphragm is placed in pump body. The second lever end is formed as locking means and arranged on the outside of cylindrical body for manual actuation of pumping member. Pumping member has tubular part extending through diaphragm into position into which tubular part is located coaxially to body. Tubular part has the first end, which passes into diaphragm and comprises orifice, the second end, which extends towards vessel with liquid and comprises orifice, and valve for orifice opening and closing. The second orifice is connected to pipe disposed in vessel for liquid suction. Diaphragm has flexible flange located in channel for orifice opening and closing to form passage towards pumping valve. EFFECT: increased reliability and enhanced pumping ability. 6 cl, 10 dwg