Remaining water suction device having air blowing function

Abstract

A remaining water suction device having an air blowing function according to the present disclosure includes a suction and blowing integrated nozzle, a suction motor unit for providing a suction force to suction remaining water into the suction and blowing integrated nozzle, a drain tank for storing a liquid from the suction and blowing integrated nozzle, an air blowing module for supplying pressurized air to the suction and blowing integrated nozzle, and a main body with the suction and blowing integrated nozzle, the suction motor unit, the drain tank and the air blowing module mounted therein.

What is claimed is: 
     
         1 . A remaining water suction device having an air blowing function, comprising:
 a nozzle;   a suction motor that drives a suction fan to provide a suction force to suction liquid and air into the nozzle;   a drain tank that stores the suctioned liquid received through the nozzle;   a blowing motor that blows air to the nozzle; and   a main body having the nozzle, the suction motor, the drain tank, and the blowing motor mounted thereto.   
     
     
         2 . The remaining water suction device according to  claim 1 , further comprising:
 a blowing duct that directs the air blown by the blowing motor to the nozzle.   
     
     
         3 . The remaining water suction device according to  claim 2 , wherein a cross-sectional area of the blowing duct gradually decreases between the blowing motor and the nozzle. 
     
     
         4 . The remaining water suction device according to  claim 2 , wherein the main body includes:
 a first main body having the suction motor and the blowing motor mounted therein and the drain tank detachably coupled thereto; and   a second main body that includes the blowing duct, and having an end coupled to the first main body and an opposite end coupled to the nozzle, the second main body being configured to guide the suctioned liquid and air from the nozzle and the blown air toward the nozzle.   
     
     
         5 . The remaining water suction device according to  claim 4 , wherein the second main body includes:
 a suction chamber that receives the suctioned liquid and air from the nozzle;   a liquid discharge path formed to face the drain tank mounted on the first main body;   a partition plate formed with a first surface facing the suction chamber and positioned to be inclined downward toward the liquid discharge path;   an air discharge path formed to face the suction motor mounted in the first main body; and   the blowing duct, wherein the blowing duct is formed in the second main body to face the blowing motor mounted in the first main body.   
     
     
         6 . The remaining water suction device according to  claim 5 , wherein the second main body further includes:
 an air flow chamber positioned adjacent to a second surface of the partition plate that is opposite to the first surface and is in communications with the air discharge path,   wherein the suction chamber is positioned to direct the suctioned liquid and air toward the first surface of the partition portion.   
     
     
         7 . The remaining water suction device according to  claim 5 , wherein the first main body further includes:
 a suction duct having one end connected to the suction motor and a second end connected to the air discharge path.   
     
     
         8 . The remaining water suction device according to  claim 1 , wherein the nozzle includes:
 a suction head provided with a suction port to receive the suctioned liquid and air;   a blowing head provided with a blowing port that discharges pressurized air flowing from the blowing motor.   
     
     
         9 . The remaining water suction device according to  claim 8 , wherein the suction port is formed as a slit,
 wherein an contact blade is mounted on the suction port.   
     
     
         10 . The remaining water suction device according to  claim 9 , wherein the blowing port is formed as a slit, and wherein a length of the slit in the suction port is greater than a length of the slit in the blowing port. 
     
     
         11 . The remaining water suction device according to  claim 9 , wherein the contact blade is positioned between the blowing port and the suction port. 
     
     
         12 . The remaining water suction device according to  claim 1 , further comprising:
 a filter positioned at an air inlet of the blowing motor.   
     
     
         13 . The remaining water suction device according to  claim 1 , further comprising:
 a blocking plate that is moved to selectively switch a flow direction of the air blown from the blowing motor toward the nozzle or toward a flow path of the suctioned liquid within the main body.   
     
     
         14 . The remaining water suction device according to  claim 13 , wherein the main body includes:
 a first main body having the suction motor and the blowing motor mounted therein and the drain tank detachably coupled thereto; and   a second main body having an end coupled to the first main body and an opposite end coupled to the nozzle, the second main body being configured to guide the suctioned liquid water and air from the nozzle and the blown air toward the nozzle,   wherein the blocking plate is mounted to the second main body.   
     
     
         15 . The remaining water suction device according to  claim 14 , wherein the second main body includes:
 a suction chamber that receives the suctioned liquid and air from the nozzle;   a liquid discharge path formed to face the drain tank mounted on the first main body;   a partition plate having a first surface facing the suction chamber and provided to be inclined downward toward the liquid discharge path;   an air discharge path formed to face the suction motor mounted in the first main body; and   a blowing duct formed to face the blowing motor mounted in the first main body,   wherein the blowing duct is provided with a through hole facing the suction chamber and the partition plate, and   wherein the blocking plate selectively opens one of the through hole of the blowing duct or the blowing duct connected to the nozzle, and selectively closes another one of the through hole or the blowing duct.   
     
     
         16 . The remaining water suction device according to  claim 15 , further comprising:
 a lever exposed to an outside of the second main body, wherein the blocking plate is connected to the lever and is moved by operation of the lever between a first position directing the blown air through the blowing duct and a second position directing the blown air through the through hole.   
     
     
         17 . The remaining water suction device according to  claim 13 , wherein the blocking plate is formed of an elastic material. 
     
     
         18 . The remaining water suction device according to  claim 13 , wherein the blown air from the blowing motor, when positioned by the blocking plate to have the flow direction toward the path of the suctioned liquid within the main body, causes the suctioned liquid to move toward the drain tank and away from the suction motor. 
     
     
         19 . The remaining water suction device according to  claim 13 , wherein the blowing motor outputs the blown air at a first air velocity when the blocking plate directs the blown air toward the nozzle, and at a second air velocity that is lower than the first velocity when the blocking plate directs the blown air toward the flow path of the suctioned liquid within the main body. 
     
     
         20 . The remaining water suction device according to  claim 1 , further comprising:
 an absorption filter provided in an air flow path between the nozzle and the suction motor, the absorption filter blocking the suctioned liquid from reaching the suction motor.