HOUSEHOLD ELECTRIC INSTRUMENT SYSTEM WITH MOBILE HYDRAULIC COUPLER Russian patent published in 2019 - IPC F16L21/03 D06F79/02 

FIELD: household electrical appliances.

SUBSTANCE: invention relates to a household electrical appliance system in which a sliding hydraulic coupling (1) is used, comprising a feeding part (2) of the coupling and a receiving part (3) of the coupling, configured to interact with each other to create the possibility of flow of fluid in the direction (D1) of the flow from the feed part (2) of the coupling to the receiving part (3) of the coupling. Receiving part (3) of the coupling contains an acting element (65) containing a channel (67) for the flow of fluid from the supply part (2) of the coupling to the receiving part (3) of the coupling. Feed part (2) of the coupling includes a housing (4) defining the path (5) of the fluid flow and containing an opening (6) into which the acting element (65) is inserted, a chamber (37) located in the housing (4) for leaking fluid medium, valve seat (8) and valve element (7) interacting with valve seat (8) for closing the fluid flow path (5), first piston (9) inserted slidably into chamber (37) after valve element (7). Feeding part (2) of the coupling and the receiving part (3) of the coupling are arranged to interact with each other so that when the acting element (65) is inserted into the hole (6), the actuator (65) and the orifice (6) interact with each other to form a hydraulic seal that prevents fluid from flowing out of the chamber (37), then, when the acting element (65) is further inserted into the hole (6), the acting element (65) was able to contact the first piston (9) and displace the first piston (9) in the direction (D2) against the flow, until the first piston (9) comes into contact with the valve element (7) and lifts the valve element (7) from the valve seat (8) to open the fluid flow path (5) in order to allow the fluid to flow in the direction (D1) flow.

EFFECT: present invention prevents leakage of fluid between the supply part (2) of the coupling and the receiving part (3) of the coupling.

14 cl, 5 dwg