Device for supplying a liquid detergent

Abstract

Disclosed is an invention relating to a device for supplying a liquid detergent. The disclosed invention comprises: a detergent-supply unit for supplying the liquid detergent; a nozzle unit which is provided so as to move to a first position or a second position, and squirts out the liquid detergent supplied from the detergent-supply unit; and a pump unit which is provided between the detergent-supply unit and the nozzle unit and receives a supply of liquid detergent from the detergent-supply unit when the nozzle unit is moved to the first position and supplies the detergent to the nozzle unit when the nozzle unit is moved to the second position. When the present invention is employed, the liquid detergent is supplied automatically, thereby making it possible to ensure timely supply of the liquid detergent in the desired amount without the trouble of the user introducing the liquid detergent piecemeal when washing.

1 . A device for supplying a liquid detergent, comprising:
 a detergent supply unit configured to supply the liquid detergent;   a nozzle unit provided so as to be able to move to a first position or a second position, and configured to inject the liquid detergent supplied from the detergent-supply unit; and   a pump unit disposed between the detergent supply unit and the nozzle unit and configured to receive a supply of the liquid detergent from the detergent-supply unit when the nozzle unit is moved to the first position and supply the detergent to the nozzle unit when the nozzle unit is moved to the second position.   
     
     
         2 . The device of  claim 1 , wherein the pump unit comprises:
 a housing part including a first inlet formed at a lower portion thereof so as to allow the liquid detergent to be introduced thereto from the detergent supply unit, and configured to allow the liquid detergent supplied to the housing part from the detergent supply unit to temporarily stays therein;   a first opening and closing part configured so as to open and close the first inlet;   a rod part operated in cooperation with the movement of the nozzle unit to supply the liquid detergent stayed in the housing part to the nozzle unit, the rod part including an outlet formed therein so as to discharge the liquid detergent to the nozzle unit; and   a second opening and closing part configured so as to open and close the outlet of the rod part.   
     
     
         3 . The device of  claim 2 , wherein the rod part comprises:
 a discharge part connected to the nozzle unit and formed with the outlet; and   a suction part connected to the discharge part, and including a second inlet formed therein so as to allow the inside of the housing part to fluidically communicate with the discharge part.   
     
     
         4 . The device of  claim 2 , wherein the pump unit further comprises a sealing part coupled to the rod part  160  so as to hermetically seal the inside of the housing part. 
     
     
         5 . The device of  claim 4 , wherein the sealing part comprises:
 a first sealing part configured to be brought into close contact at an inner peripheral surface thereof with an outer wall of the rod part; and   a second sealing part configured to be brought into close contact at an outer peripheral surface thereof with an inner wall of the housing part.   
     
     
         6 . The device of  claim 5 , wherein the second sealing part comprises an airtight projection formed on a surface thereof so as to contact with the inner wall of the housing part. 
     
     
         7 . The device of  claim 4 , wherein the rod part comprises a coupling projection formed thereon, and the sealing part comprises a recess part formed at one side thereof so that the coupling projection can be detachably coupled to the recess part. 
     
     
         8 . The device of  claim 2 , wherein the pump unit further comprises an elastic member disposed within the housing part to allow the nozzle unit moved to the second position to be moved to the first position. 
     
     
         9 . The device of  claim 2 , wherein at least one of the first opening and closing part and the second opening and closing part comprises a ball valve operated in cooperation with the movement of the rod part to open and close the outlet. 
     
     
         10 . The device of  claim 1 , further comprising a nozzle manipulating part configured to move the nozzle unit. 
     
     
         11 . The device of  claim 10 , wherein the nozzle manipulating part comprises:
 a driving unit configured to generate a rotational force; and   a cam part configured to be rotated eccentrically by the driving unit and brought into close contact at the outer peripheral surface thereof with the nozzle unit to move the nozzle unit.