Patent ID: 9061875
Filing Date: 2015-06-23
Classification: B67D

Abstract:
1. A drinking water dispenser that heats and cools drinking water supplied from a water supply bottle, and provides heated and cooled drinking water, the dispenser comprising: a cold water tank that cools the drinking water fit to drink to store the cooled drinking water; a hot water tank that heats the drinking water to store the heated drinking water; a water supply pipe that is provided to a recessed portion of a plate member, the plate member being disposed in the cold water tank, the water supply pipe introducing the drinking water stored in the cold water tank, to the hot water tank; a valve that opens and closes a water outlet for taking in the drinking water from the water supply bottle according to a level of the drinking water in the cold water tank, the water outlet being disposed in a cover, the cover being placed on the cold water tank, the valve limiting supply of the drinking water to the cold water tank, and suppressing convection of the drinking water and/or heat of the drinking water between the water supply bottle and the cold water tank while the water outlet is shut; a by-pass pipe that is between the hot water tank and the cold water tank, to circulate the heated drinking water in the hot water tank and the cold water tank along with the water supply pipe; a by-pass valve that blocks the by-pass pipe; and a control unit that controls open and close of the by-pass valve while there is no provision request of the drinking water and while the valve is shut, wherein the valve includes a float part and an open and close unit, the float part rising toward an opening of the water outlet and falling according to the level of the drinking water in the cold water tank, the open and close unit including packing that opens and closes the water outlet, one end of the open and close unit being rotatably supported by the float part, another end of the open and close unit being supported at a side of the water outlet, wherein the float part floats on a surface of the drinking water by receiving buoyancy from the drinking water and is movably exposed on the surface of the drinking water, the float part including a first part supported with one end of the open and close unit and a second part protruding downward from the first part, wherein the first part of the float part touches the plate member so to allow the second part of the float part to escape into the recessed portion of the plate member when the float part is falling, and wherein the packing is adhered to the water outlet by rise of the float part, or adhesion of the packing is released by fall of the float part, and the water outlet is opened and closed by the packing.