Cup washer

Abstract

Disclosed is a cup washer. The cup washer of the present disclosure includes a tub, a first spray nozzle, and a second spray nozzle. A cup is placed inside the tub. The first spray nozzle sprays water inside the tub by the pressure of a circulating pump configured to circulate water drained from the tub. The second spray nozzle is connected to a feed pipe to spray water into the tub by the water supply pressure.

What is claimed is: 
     
         1 . A cup washer comprising:
 a tub in which a cup is placed; and   a second spray nozzle connected to a feed pipe and configured to spray water into the tub by water pressure,   wherein the second spray nozzle comprises:   a guide pipe provided in a lower portion of the tub and providing a flow path through which water moves upward by water pressure;   a venturi pipe connected to an upper end portion of the guide pipe and providing an air inlet in a constricted portion of the flow path through which water moves upward; and   a cone nozzle connected to the upper end portion of the venturi pipe and configured to spray water into the tub.   
     
     
         2 . The cup washer of  claim 1 , wherein the venturi pipe is detachably connected to an upper end opening of the guide pipe. 
     
     
         3 . The cup washer of  claim 1 , wherein the cone nozzle is detachably coupled to an upper end opening of the venturi pipe. 
     
     
         4 . The cup washer of  claim 1 , wherein a rack is provided inside the tub, the cup being placed on the rack upside down, and
 wherein the air inlet is located outside an inlet of the cup placed upside down on the rack.   
     
     
         5 . The cup washer of  claim 4 , wherein at least a portion of the cone nozzle is located inside the inlet of the cup placed on the rack. 
     
     
         6 . The cup washer of  claim 2 , wherein the cone nozzle is detachably coupled to the upper end opening of the guide pipe. 
     
     
         7 . The cup washer of  claim 1 , wherein a lower portion of the venturi pipe surrounds an outer peripheral surface of an upper end opening of the guide pipe. 
     
     
         8 . The cup washer of  claim 1 , wherein a lower portion of the cone nozzle surrounds an outer peripheral surface of an upper end opening of the venturi pipe. 
     
     
         9 . The cup washer of  claim 1 , wherein the air inlet has an opening on an outer surface of the venturi pipe, and
 wherein a distance from a center line of the flow path in the venturi pipe to the opening of the air inlet is smaller than a radius of a lower portion of the venturi pipe and a radius of a lower portion of the cone nozzle.   
     
     
         10 . The cup washer of  claim 9 , wherein the venturi pipe has a concave groove on an outer surface there, and
 wherein the opening of the air inlet is located inside the concave groove.   
     
     
         11 . The cup washer of  claim 1 , further comprising:
 a first spray nozzle configured to spray water into the tub by a pressure of a circulating pump configured to circulate water drained from the tub.   
     
     
         12 . The cup washer of  claim 11 , wherein the first spray nozzle is rotatably coupled outside the guide pipe and provides multiple spray ports configured to spray water into the tub. 
     
     
         13 . The cup washer of  claim 1 , wherein an upper end of the flow path in the guide pipe and a lower end of the flow path in the venturi pipe, which are connected to each other, have a same inner diameter. 
     
     
         14 . The cup washer of  claim 1 , wherein an upper end of the flow path in the venturi pipe and a lower end of the flow path in the cone nozzle, which are connected to each other, have a same inner diameter.