Nozzle apparatus of dishwasher

Abstract

A nozzle apparatus of a dishwasher including a washing nozzle configured to inject washing water onto targets to be washed, a water supply passage part for allowing the flow of washing water supplied to the washing nozzle, a drain passage part for allowing the flow of washing water to be drained, and a siphon preventing portion configured to prevent a siphon phenomenon from occurring on the drain passage part, whereby a space required for configuring a drain passage and a siphon phenomenon preventing structure can be minimized so as to maintain the dishwasher in a compact size and improve the space utilization.

1 . A nozzle apparatus of a dishwasher comprising:
 a washing nozzle configured to inject washing water onto targets to be washed;   a water supply passage part configured to allow the flow of washing water to be supplied to the washing nozzle;   a drain passage part configured to allow the flow of washing water to be drained; and   a siphon preventing portion configured to prevent a siphon phenomenon from occurring on the drain passage part.   
     
     
         2 . The nozzle apparatus of  claim 1 , wherein the water supply passage part is connected to a lower portion of the washing nozzle. 
     
     
         3 . The nozzle apparatus of  claim 2 , wherein the drain passage part is disposed adjacent to the water supply passage part. 
     
     
         4 . The nozzle apparatus of  claim 3 , wherein the water supply passage part and the drain passage part are integrally formed, and divided from each other by a partition wall. 
     
     
         5 . The nozzle apparatus of  claim 1 , wherein the drain passage part comprises an inlet portion in which washing water to be drained is introduced, an outlet portion through which washing water introduced via the inlet portion is discharged, and an intermediate portion connecting the inlet portion to the outlet portion,
 wherein the intermediate portion is positioned upper than the inlet portion and the outlet portion.   
     
     
         6 . The nozzle apparatus of  claim 5 , wherein the drain passage part is formed to be a inverted ‘U’-shaped pipe. 
     
     
         7 . The nozzle apparatus of  claim 1 , wherein the siphon preventing portion includes a hole for communicating the inside of the drain passage part to the outside thereof. 
     
     
         8 . The nozzle apparatus of  claim 5 , wherein the siphon preventing portion is disposed on the intermediate portion. 
     
     
         9 . The nozzle apparatus of  claim 8 , wherein the siphon preventing portion is positioned uppermost at the intermediate portion. 
     
     
         10 . The nozzle apparatus of  claim 9 , wherein the siphon preventing portion includes a hole formed through the uppermost portion of the intermediate portion so as to communicate the inside of the drain passage part to the outside thereof. 
     
     
         11 . The nozzle apparatus of  claim 1 , further comprising a coupling portion configured to couple the nozzle apparatus to the inside of the dishwasher. 
     
     
         12 . The nozzle apparatus of  claim 11 , wherein the coupling portion is formed at the water supply passage part. 
     
     
         13 . The nozzle apparatus of  claim 11 , wherein the coupling portion is formed at the drain passage part. 
     
     
         14 . The nozzle apparatus of  claim 11 , wherein the coupling portion includes coupling holes in which screws are inserted, the nozzle apparatus being fixed by the screws inserted in the coupling holes. 
     
     
         15 . The nozzle apparatus of  claim 1 , wherein the nozzle apparatus is installed at an inner side wall of the dishwasher.