DRIP STOP DEVICE FOR UNDER SINK BUILT IN TYPE PURIFIER

A device for preventing water leakage of a water purifier is provided to prevent the wall or bottom of a sink from being covered with water by encircling the water purifier with a curtain wall, and to cut out water supplied to a cartridge from a water pipe by lifting or lowering a buoyancy member and closing a ball valve when leaked water is stored to a predetermined amount or more in a water storage groove of a body of the device. A device for preventing water leakage of a water purifier comprises a body(10), a first side wall, a "±‘" shaped frame, a ball valve, a lever operating part, a spring holder, a coil spring, an actuating element, a water supply cutout member(20), a curtain wall frame(30), and a vinyl curtain wall(40). The body is installed on a bottom part of a filter cartridge(100) for water purifier. The body is formed in a rectangular box shape and has a leg(3) formed on one side of a bottom face thereof in a way that height of the leg is the same as that of a water storage groove formed on a part of the bottom of the body. The first side wall has a supporting part, a screw jointing hole, and a first cutout portion formed thereon. The "±‘" shaped frame includes a second side wall and a third side wall. The ball valve is connected between an inflow pipe connector and an outflow pipe connector. The lever operating part is formed on a lever of the ball valve in a state that a connecting element is fixedly joined with the lever of the ball valve. The spring holder is installed to hole the coil spring. The coil spring is installed on the spring holder. The actuating element is fitted into a shaft hole by closely adhering the actuating element to the spring elastically supported to a catching projection, and inserting a shaft pin into a shaft pin-inserting hole of the second side wall. The water supply cutout member includes a buoyancy member connected to one end of the actuating element. The curtain wall frame is fixedly installed on the wall surface of a sink. The vinyl curtain wall has its top part fixedly adhered to four sides of the curtain wall frame, and has its lower part placed on an inner wall surface of the body.