Nozzle of cleaner

Abstract

A cleaner including a cleaner body having a suction motor, a nozzle that sucks in foreign substances and air from a floor surface by suction force of the suction motor, and a connection tube connected to a rear portion of the nozzle and guiding foreign substances and air sucked from the nozzle to the cleaner body. Additionally, the nozzle may include a nozzle body having a front-rear suction passage extending in a front-rear direction of the nozzle so that the foreign substances and air are sucked in, and formed so that the front-rear suction passage is connected to the connection tube, a rotation cleaning part provided so as to be rotatable below the nozzle body and having at least one rotation plate to which a mop is attached, and a driving device provided in the nozzle body and having a driving motor for rotating the rotation plate.

What is claimed is: 
     
         1 . A cleaner comprising:
 a cleaner body having a suction motor;   a nozzle that sucks in foreign substances and air from a floor surface by suction force of the suction motor; and   a connection tube connected to a rear portion of the nozzle and guiding foreign substances and air sucked from the nozzle to the cleaner body,   wherein the nozzle comprises:
 a nozzle body having a front-rear suction passage extending in a front-rear direction of the nozzle so that the foreign substances and air are sucked in, and formed so that the front-rear suction passage is connected to the connection tube; 
 a rotation cleaning part provided so as to be rotatable below the nozzle body and having at least one rotation plate to which a mop is attached; 
 a driving device provided in the nozzle body and having a driving motor for rotating the rotation plate; 
 a water tank installed on an upper part of the nozzle body to store water; 
 a water supply passage provided inside the nozzle body to supply water from the water tank to the rotation cleaning part; 
 a water pump disposed in the water supply passage to control the water discharged from the water tank; and 
 a water adjusting switch positioned at a rear area of the nozzle body defined to be rearward of the water tank, and the water adjusting switch being formed to be exposed to outside so as to control an operation of the water pump by the user, and 
   wherein the water adjusting switch is formed to vary amount of water discharged from the water tank based on the operation of the user.   
     
     
         2 . The cleaner of  claim 1 , wherein the water adjusting switch includes a control substrate positioned in the other side area opposite to one side area where the water pump is positioned centered on the front-rear suction passage, and
 wherein the control substrate electrically connects the water adjusting switch and the water pump to control the operation of the water pump, based on an input of the water adjusting switch.   
     
     
         3 . The cleaner of  claim 2 , wherein the water adjusting switch is positioned at an upper surface of the rear area of the nozzle body. 
     
     
         4 . The cleaner of  claim 3 , wherein the water adjusting switch has a touch button on the upper surface of the rear area of the nozzle body, and varies the amount of water discharged from the water tank depending on a number of times the touch button is touched. 
     
     
         5 . The cleaner of  claim 3 , wherein the touch button is provided with a plurality of buttons arranged in a horizontal direction of the nozzle body. 
     
     
         6 . The cleaner of  claim 1 , wherein the water adjusting switch is provided at a position spaced apart from the connection tube to one side direction. 
     
     
         7 . The cleaner of  claim 1 , wherein the water tank is provided with a discharge port formed on one side centered on the front-rear suction passage to discharge water into the water supply passage, and
 wherein the discharge port is formed on a front bottom surface of the water tank so as to correspond to a front area of the nozzle body which is lower in height than the rear area of the nozzle body.   
     
     
         8 . The cleaner of  claim 7 , wherein the water pump and the discharge port are positioned on a same side area centered on the front-rear suction passage. 
     
     
         9 . The cleaner of  claim 8 , wherein the water pump is positioned rearwardly of the discharge port. 
     
     
         10 . The cleaner of  claim 9 , wherein the water supply passage includes a pump motor for driving the water pump, and
 wherein the pump motor and the water pump are positioned on the same side area centered on the front-rear suction passage.   
     
     
         11 . The cleaner of  claim 10 , wherein the discharge port is coupled with a valve manipulation part for controlling the discharge of water. 
     
     
         12 . The cleaner of  claim 1 , wherein the water tank is positioned on the upper part to cover an area where the driving device is positioned. 
     
     
         13 . The cleaner of  claim 12 , wherein the water tank forms a space for storing water supplied to the mop by forming an upper surface of the nozzle, and
 wherein a nozzle hole is formed on a lower surface of the nozzle body so that an injection nozzle is positioned downward to discharge water from the water tank to an upper surface of the rotation plate.   
     
     
         14 . The cleaner of  claim 13 , wherein the rotation plate includes a first rotation plate and a second rotation plate spaced apart from each other in a horizontal direction of the nozzle body, and
 wherein the front-rear suction passage further includes a left-right suction passage extending in the horizontal direction of the nozzle body in front of the rotation cleaning part.   
     
     
         15 . The cleaner of  claim 14 , wherein a distance between the injection nozzle and the left-right suction passage is smaller than a distance between a rotation center of each of the first and second rotation plates and the left-right suction passage. 
     
     
         16 . The cleaner of  claim 15 , wherein the rotation plate includes a water blocking rib formed to protrude upward from the upper surface of the rotation plate, and
 wherein the water blocking rib is formed to be positioned radially outside the injection nozzle based on the rotation center of the rotation plate.   
     
     
         17 . The cleaner of  claim 16 , wherein the rotation plate further includes a water passage hole through which water discharged from the injection nozzle passes, and
 wherein the water passage hole is arranged on an inside of the water blocking rib based on the rotation center.   
     
     
         18 . The cleaner of  claim 17 , wherein the lower surface of the nozzle body is provided with a recessed groove,
 wherein the nozzle hole is formed in the recessed groove, and   wherein the injection nozzle is positioned in the nozzle hole and arranged inside the recessed groove.   
     
     
         19 . The cleaner of  claim 1 , wherein the rotation cleaning part includes a first rotation cleaning part and a second rotation cleaning part which are arranged apart from each other along a horizontal direction of the nozzle body, and
 wherein the water supply passage includes:
 a supply pipe connected to an outlet of the water tank; 
 a connector connected to the supply pipe; 
 a first branch pipe connected to the connector and supplying water to the first rotation cleaning part; and 
 a second branch pipe connected to the connector and supplying water to the second rotation cleaning part, and 
   wherein the supply pipe includes a first supply pipe coupled to an inlet of the water pump;   
       and a second supply pipe coupled to the outlet of the water pump and the connector.