DESCALING DEVICE, SYSTEM, AND DESCALING METHOD OF ELECTRONIC TOILET AND LIQUID SUPPLY DEVICE, SYSTEM, AND CLEANING METHOD OF ELECTRONIC TOILET

The present disclosure discloses a liquid supply device, a system, and a cleaning method for an electronic toilet. The liquid supply device includes a detergent storage box, a piston assembly, and a driving mechanism. The detergent storage box includes a detergent space for containing a detergent and a piston space for containing the piston assembly. The water inlet end is provided with a water inlet end check valve. The detergent saturated solution output end is provided with an output end check valve. The piston assembly is internally provided with a piston rod driven by the driving mechanism to reciprocate in the piston space. The reciprocating movement of the piston rod in the piston space controls the opening or closing of the water inlet end check valve and the output end check valve.