Vacuum cleaner brush head and dust collection method

Abstract

The present invention provides a vacuum cleaner brush head and a dust collection method. The vacuum cleaner brush head includes a brush head body, a front wiping plate, a rear wiping plate, a wiping plate driving device, and a water spraying assembly; a dust collection pipe is provided in the brush head body; the dust collection pipe has a dust collection port formed on the front side of the bottom of the brush head body; a water spraying port of the water spraying assembly is provided on the bottom of the brush head body and located between the front wiping plate and the rear wiping plate; the wiping plate driving device is transmittingly connected to the front wiping plate and the rear wiping plate, and is configured to drive the front wiping plate and the rear wiping plate to move reciprocally in opposite directions

1 . A vacuum cleaner brush head, comprising a brush head body, a front wiping plate, a rear wiping plate, a wiping plate driving device, and a water spraying assembly, wherein a dust collection pipe is provided in the brush head body; the dust collection pipe has a dust collection port formed on the front side of the bottom of the brush head body; the front wiping plate and the rear wiping plate are provided at the bottom of the brush head body, respectively; cleaning cloth is provided on the front wiping plate and the rear wiping plate, respectively; the wiping plate driving device is provided in the brush head body; a water spraying port of the water spraying assembly is provided on the bottom of the brush head body and located between the front wiping plate and the rear wiping plate;
 the wiping plate driving device is transmittingly connected to the front wiping plate and the rear wiping plate, and is configured to drive the front wiping plate and the rear wiping plate to move reciprocally in opposite directions;   the front wiping plate is provided with a dust passing hole penetrating the upper and lower ends thereof, and the dust passing hole is located below the dust collection port, and is configured to keep the dust collection port overlapping the dust passing hole when moving reciprocally along with the front wiping plate.   
     
     
         2 . The vacuum cleaner brush head according to  claim 1 , wherein in the forward or backward direction of the front wiping plate, the width of the dust passing hole is greater than the width of the dust collection port by a preset threshold, to keep the dust collection port overlapping the dust passing hole when the dust passing hole moves reciprocally along with the front wiping plate;
 alternatively, in the forward or backward direction of the front wiping plate, the width of the dust passing hole is less than the width of the dust collection port by the present threshold, to keep the dust collection port overlapping the dust passing hole when the dust passing hole moves reciprocally along with the front wiping plate.   
     
     
         3 . The vacuum cleaner brush head according to  claim 1 , wherein the top of the front wiping plate is transmittingly connected to the wiping plate driving device; the bottom of the front wiping plate has a dust collection groove and a cleaning cloth mounting portion; the front wall of the dust collection groove is located at the bottom front edge of the front wiping plate, and the rear wall of the dust collection groove is connected to the cleaning cloth mounting portion; the dust passing hole is provided in the dust collection groove. 
     
     
         4 . The vacuum cleaner brush head according to  claim 3 , wherein the front wall of the dust collection groove has a plurality of notches arranged at intervals, and each of the notches respectively communicates with the dust collection groove. 
     
     
         5 . The vacuum cleaner brush head according to  claim 4 , wherein the dust collection groove extends from the middle to both sides at the bottom front edge of the front wiping plate, and occupies more than half of the length of the bottom front edge of the front wiping plate. 
     
     
         6 . The vacuum cleaner brush head according to  claim 3 , wherein the number of the dust collection port is one or multiple, and the number of the dust passing hole is one or multiple; and when the number of the dust collection ports is multiple, the dust passing holes correspond one-to-one to the dust collection ports or one of the dust passing holes overlaps a plurality of the dust collection ports. 
     
     
         7 . The vacuum cleaner brush head according to  claim 3 , wherein the rear wall of the dust collection groove has a plurality of toothed blades, and the cutting edges of the toothed blades face the dust collection groove. 
     
     
         8 . The vacuum cleaner brush head according to  claim 7 , wherein the front wall of the dust collection groove also has a plurality of toothed blades, and the cutting edges of the toothed blades face the dust collection groove. 
     
     
         9 . The vacuum cleaner brush head according to  claim 3 , wherein the width of the region of the dust collection groove not provided with the dust passing hole is less than the width of the dust passing hole. 
     
     
         10 . The vacuum cleaner brush head according to  claim 1 , wherein the wiping plate driving device comprises a crankshaft, a first connecting rod, and second connecting rod; the crankshaft comprises a crankshaft rod, and a first journal and a second journal formed on the crankshaft rod; one end of the first connecting rod is rotatably sleeved on the first journal, and the other end is hingedly connected to the top of the front wiping plate; one end of the second connecting rod is rotatably sleeved on the second journal, and the other end is hingedly connected to the top of the rear wiping plate. 
     
     
         11 . The vacuum cleaner brush head according to  claim 10 , wherein the shaft axis of the first journal, the shaft axis of the second journal, and the rotation axis of the crankshaft rod are coplanar; and the distance between the shaft axis of the first journal and the rotation axis of the crankshaft rod is equal to the distance between the shaft axis of the second journal and the rotation axis of the crankshaft rod. 
     
     
         12 . The vacuum cleaner brush head according to  claim 1 , wherein the wiping plate driving device is further configured to keep the crankshaft self-balanced when driving the front wiping plate and the rear wiping plate to move reciprocally in opposite directions. 
     
     
         13 . The vacuum cleaner brush head according to  claim 1 [[ or  10 ]], wherein at least one group of guide devices is provided between the front wiping plate and the bottom of the brush head body;
 the guide device comprises a roller, a roller base, a guide rail bar, and a guide rail base; the roller base is fixed on one of the front wiping plate and the brush head body; the roller is rotatably mounted on the roller base, and is in rolling contact with the other of the front wiping plate and the brush head body; the guide rail base is fixed on one of the front wiping plate and the brush head body, and the guide rail bar is fixed on the other of the front wiping plate and the brush head body; the guide rail base is configured to limit the moving direction of the guide rail bar.   
     
     
         14 . The vacuum cleaner brush head according to  claim 1 , wherein at least one group of guide devices is provided between the rear wiping plate and the bottom of the brush head body;
 the guide device comprises a roller, a roller base, a guide rail bar, and a guide rail base; the roller base is fixed on one of the rear wiping plate and the brush head body; the roller is rotatably mounted on the roller base, and is in rolling contact with the other of the rear wiping plate and the brush head body; the guide rail base is fixed on one of the rear wiping plate and the brush head body, and the guide rail bar is fixed on the other of the rear wiping plate and the brush head body; the guide rail base is configured to limit the moving direction of the guide rail bar.   
     
     
         15 . The vacuum cleaner brush head according to  claim 13 , wherein the guide rail base comprises a first base body and a second base body, and the guide rail bar penetrates a gap between the first base body and the second base body. 
     
     
         16 . The vacuum cleaner brush head according to  claim 1 , wherein the water spraying port of the water spraying assembly is provided with a nozzle, and the nozzle is detachably mounted at the bottom of the brush head body. 
     
     
         17 . The vacuum cleaner brush head according to  claim 1 , wherein the dust collection pipe comprises an internal pipe and a flexible joint; the internal pipe is located in the brush head body and one end of the inter pipe is connected to the dust collection port; the other end of the internal pipe is inserted into the flexible joint; the flexible joint is fixed on the brush head body. 
     
     
         18 - 19 . (canceled) 
     
     
         20 . The vacuum cleaner brush head according to  claim 1 , wherein the water spraying assembly comprises a water tank; the water tank comprises a tank body, a tank cover, and a water separation pad; the tank cover is provided at the top of the tank body; the lower part of the tank body has a water outlet; the water separation pad is provided in the tank body and divides the tank body into an upper cavity and a lower cavity; the lower cavity is configured to store water; the height of the central region of the water separation pad is less than that of the edge region, and the central region of the water separation pad has a water injection port for injecting water into the lower cavity; the tank cover is configured to open or close the water injection port. 
     
     
         21 . A dust collection method, wherein the vacuum cleaner brush head according to  claim 1  is used to perform the following operations:
 starting a negative pressure generation device so that garbage is sucked away by the dust collection pipe at the dust collection port; 
 starting the wiping plate driving device which is configured to drive the front wiping plate and the rear wiping plate to move reciprocally in opposite directions; and 
 starting the water spraying assembly according to a preset time interval and water volume, so that the front wiping plate performs dry wiping on a surface to be cleaned, and the rear wiping plate performs wet piping on the surface to be cleaned. 
 
     
     
         22 . The dust collection method according to  claim 20 , further comprising:
 detecting whether the brush head body is located on the floor, and shunting down the water spraying assembly when the brush head body leaves the floor.   
     
     
         23 . (canceled).