Sweeping robot and cleaning mechanism thereof

Abstract

The disclosure discloses a cleaning robot and a cleaning mechanism thereof. The cleaning robot comprises a shell and a cleaning mechanism. The cleaning mechanism comprises a flexible roller, a motor for driving the flexible roller to rotate, a water squeezing roller, a roller brush, and a sewage collection tank. The sewage collection tank is located above the flexible roller. The water squeezing roller is disposed adjacent to the sewage collection tank. The center of the water squeezing roller is disposed in parallel with the center of the flexible roller, and the surface of the water squeezing roller is pressed against the surface of the flexible roller. The roller brush contacts the flexible roller. When the flexible roller rotates, the water squeezing roller presses sewage in the flexible roller into the sewage collection tank. The cleaning mechanism of the disclosure has strong squeezing capability, can reduce energy consumption, and reduce noise.

1 . A cleaning mechanism, comprising:
 a flexible roller;   a motor that drives the flexible roller to rotate;   a water squeezing roller;   a roller brush; and   a sewage collection tank, wherein:
 the sewage collection tank is located above the flexible roller, 
 the water squeezing roller is disposed adjacent to the sewage collection tank, 
 a center of the water squeezing roller is disposed in parallel with a center of the flexible roller, 
 a surface of the water squeezing roller is pressed against a surface of the flexible roller, 
 the roller brush contacts the flexible roller, and 
 when the flexible roller rotates, the water squeezing roller presses out sewage in the flexible roller into the sewage collection tank. 
   
     
     
         2 . The cleaning mechanism according to  claim 1 , wherein the water squeezing roller is made of a hard material. 
     
     
         3 . The cleaning mechanism according to  claim 1 , wherein:
 the water squeezing roller presses the flexible roller to form a depressed portion on the surface of the flexible roller,
 the water squeezing roller is located in the depressed portion, and 
 one-fourth to one-half of the water squeezing roller is located in the depressed portion. 
   
     
     
         4 . The cleaning mechanism according to  claim 3 , wherein one-third of the water squeezing roller is located in the depressed portion. 
     
     
         5 . The cleaning mechanism according to  claim 1 , wherein the water squeezing roller and the roller brush are respectively located at opposite sides of the sewage collection tank. 
     
     
         6 . The cleaning mechanism according to  claim 1 , comprising:
 a second water squeezing roller, wherein the water squeezing roller and the second water squeezing roller are respectively located at opposite sides of the sewage collection tank.   
     
     
         7 . The cleaning mechanism according to  claim 1 , comprising:
 a garbage collection box, wherein:
 the garbage collection box is located on one side of the flexible roller and located directly below the roller brush, and 
   a side of the garbage collection box abuts the flexible roller.   
     
     
         8 . The cleaning mechanism according to  claim 7 , comprising:
 a scraper, wherein the scraper is disposed in an arc shape and has one end connected to the side of the garbage collection box abutting the flexible roller.   
     
     
         9 . The cleaning mechanism according to  claim 8 , comprising:
 a load bearing wheel, wherein the load bearing wheel is located between the garbage collection box and the scraper and abuts the garbage collection box and the scraper.   
     
     
         10 . A sweeping robot comprising the cleaning mechanism of  claim 1 . 
     
     
         11 . The cleaning mechanism according to  claim 2 , wherein:
 the water squeezing roller presses the flexible roller to form a depressed portion on the surface of the flexible roller,   the water squeezing roller is located in the depressed portion.   
     
     
         12 . The cleaning mechanism according to  claim 1 , comprising:
 a second water squeezing roller, wherein the roller brush contacts the second water squeezing roller.   
     
     
         13 . The cleaning mechanism according to  claim 12 , wherein, in a direction of rotation of the flexible roller, the sewage collection tank is located between the second water squeezing roller and the water squeezing roller. 
     
     
         14 . The cleaning mechanism according to  claim 12 , wherein, in a direction of rotation of the flexible roller, the second water squeezing roller is located between the roller brush and the second water squeezing roller. 
     
     
         15 . The cleaning mechanism according to  claim 1 , comprising:
 a garbage collection box, wherein the garbage collection box is located adjacent the flexible roller and located below the roller brush.   
     
     
         16 . A cleaning mechanism, comprising:
 a flexible roller;   a water squeezing roller;   a roller brush; and   a sewage collection tank, wherein:
 the sewage collection tank is located above the flexible roller, 
 the water squeezing roller is disposed after the sewage collection tank in a direction of rotation of the flexible roller, 
 a surface of the water squeezing roller is pressed against a surface of the flexible roller, and 
 the roller brush contacts the flexible roller. 
   
     
     
         17 . The cleaning mechanism according to  claim 16 , wherein when the flexible roller rotates, the water squeezing roller presses out sewage in the flexible roller into the sewage collection tank. 
     
     
         18 . The cleaning mechanism according to  claim 16 , comprising:
 a second water squeezing roller, wherein the roller brush contacts the second water squeezing roller.   
     
     
         19 . The cleaning mechanism according to  claim 18 , wherein, in a direction of rotation of the flexible roller, the sewage collection tank is located between the second water squeezing roller and the water squeezing roller. 
     
     
         20 . A cleaning mechanism, comprising:
 a flexible roller;   a first water squeezing roller;   a second water squeezing roller;   a roller brush; and   a sewage collection tank, wherein:
 the sewage collection tank is located above the flexible roller, 
 the roller brush contacts the second water squeezing roller, and 
 in a direction of rotation of the flexible roller, the sewage collection tank is located between the second water squeezing roller and the first water squeezing roller.