US 12,473,726 B2
Descaling device, system, and descaling method of electronic toilet and liquid supply device, system, and cleaning method of electronic toilet
Desheng Liao, Shanghai (CN)
Assigned to Shanghai Kohler Electronics, Ltd., Shanghai (CN)
Filed by Shanghai Kohler Electronics, Ltd., Shanghai (CN)
Filed on Nov. 10, 2022, as Appl. No. 17/984,854.
Application 17/984,854 is a division of application No. 17/121,209, filed on Dec. 14, 2020, granted, now 11,525,252.
Claims priority of application No. 201911369399.X (CN), filed on Dec. 26, 2019; and application No. 201911415317.0 (CN), filed on Dec. 31, 2019.
Prior Publication US 2023/0125224 A1, Apr. 27, 2023
Int. Cl. E03D 9/03 (2006.01); E03D 9/00 (2006.01); E03D 9/02 (2006.01)
CPC E03D 9/03 (2013.01) [E03D 9/002 (2013.01); E03D 2009/028 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A liquid supply device for an electronic toilet, the liquid supply device comprising:
a detergent storage box, comprising:
a detergent space configured to house a detergent; and
a piston space configured to house a piston assembly and in communication with the detergent space;
the piston assembly comprising a piston rod configured for a reciprocating movement in the piston space;
a driving mechanism configured to drive the piston rod to reciprocally move in the piston space,
wherein a water inlet end check valve is disposed at a water inlet end of the piston space and the reciprocating movement of the piston rod in the piston space controls an opening or a closing of the water inlet end check valve, and
wherein an output end check valve is disposed at a detergent saturated solution output end of the piston space and the reciprocating movement of the piston rod in the piston space controls an opening or a closing of the output end check valve, and
a liquid suction chamber disposed between the piston rod and the output end check valve; and
a liquid suction chamber valve device disposed at the liquid suction chamber, wherein the reciprocating movement of the piston rod in the piston space controls an opening or a closing of the liquid suction chamber valve device.