Patent ID: 11879201
Assignee: QINGDAO HAIER LAUNDRY ELECTRIC APPLIANCES CO., LTD.
Field: Other consumer goods (Other fields)
Classification: CPC D | IPC D

Claim 5:
6. The detergent additive box according to claim 3 comprising a liquid outlet, wherein: the detergent additive box has two states;
in a first state, a detergent additive is pumped from the liquid outlet, air pressure in the detergent additive box is reduced to be less than air pressure outside, and the opening and closing portion deforms, the tail end of the opening and closing portion leaves the ring groove, and air flows in through the air vent; and
in a second state, when pumping of the detergent additive is stopped, the liquid outlet is sealed, so air pressure in the detergent additive box is equal to the air pressure outside, and the opening and closing portion is restored to its original shape, the tail end of the opening and closing portion extends into the ring groove to seal the detergent additive box.