FOAM PUMP Russian patent published in 2022 - IPC A47K5/14 B05B11/06 

FIELD: pumps.

SUBSTANCE: present invention relates to a foam pump for installation in a container filled with liquid. The foaming pump (1) contains a valve holder (10), an inlet valve (11) and a valve tube (12), which is reciprocally mounted on the valve holder (10) or at least partially in the valve holder (10) when volume change in the pumping chamber (13), so that through the inlet valve (11) liquid can flow from the container to the pumping chamber (13). This foaming pump (1) further comprises a valve bellows (15) with an air chamber (14) and a mixing chamber (16) which is fluidly connected to the air chamber (14) and the pumping chamber (13). A beak-shaped valve (21) is formed between the pumping chamber (13) and the mixing chamber (16), through which, during the reciprocating movement of the valve tube (12) relative to the valve holder (10), liquid can flow from the pumping chamber (13) into the mixing chamber (16). Further, between the air chamber (14) in the valve bellows (15) and the mixing chamber (16), a petal valve (24) is formed, through which, when the valve tube (12) reciprocates relative to the valve holder (10), air can flow from the air chamber (14) in the bellows (15) of the valve into the mixing chamber (16).

EFFECT: improvement of the foam pump so that it can be easily disposed of without the need for laborious dismantling, so that the foam pump can be applicable to various types of foaming liquids, such as soap suds and foam disinfectant solution, in particular, so that the foam pump for providing liquid is able to pump it out from the container.

15 cl, 6 dwg