TW197488B - Change valve for filter adapted to be mounted on a sink - Google Patents

Abstract

A filter use change valve device that is connected between the water supply device and the filter, the change valve can change the flow direction of the water flow from the water supply device and is comprised of: inlet, outlet and discharge port capable of receiving and discharging water from the water supply device; a valve case connected to the lst connector of the filter inlet and the 2nd connector of the filter outlet; a valve with water guidance section mounted in the valve case at switchable state which can guide the water passed the filter entering the valve case to discharge port or outlet; and with water stoppage section which can stop the outlet when water is flowing out of the discharge port and stop the discharge port when water is flowing out of the outlet; and a handle which enables the valve to be switchable in the valve circular direction, in which the valve receives reciprocal operation from handle to be set separately at the filtration position where water from water supply unit circulates in the filter along the direction and flows out at the outlet of the valve case; at the back wash position where water circulates in the filter along the opposite direction and flows out from the discharge of the valve case; and at the wash position where water circulates in the filter along the direction and flows out from the discharge port of the valve case, the water guidance section of the valve is configured as when the valve is: at the filtration position, connecting the 2nd connector of the valve case to the outlet; at the back wash position, connecting the 2nd connector to the discharge port; at the wash position, connecting the 2nd connector to the discharge port, and is characterized at the water stoppage section that is configured as when the valve is: at the filtration position can seal the discharge port; at the wash position can seal the outlet; at the back wash position can seal the outlet.