Clearing device, base station, cleaning device system, and method for clearing rolling brush assembly

Abstract

The present disclosure relates to a cleaner and a base station. A driving unit is utilized to drive a feeder to move to a pick-up position, and then to a working position from the pick-up position, so that tangles on a roller brush are pulled down. When the tangles are pulled down, a cutter cuts the tangles such that the roller brush is effectively cleared. Therefore, a cutting mode of the cleaner is to pull the tangles first and then cut the tangles, which can ensure the tangles that adhere to the roller brush in clusters to leave the roller brush in time after the tangles are cut off such that the tangles can be effectively cleared away.

What is claimed is: 
     
         1 . A cleaner for clearing away tangles on a roller brush of a vacuum cleaner, the cleaner comprising:
 a feed driver;   a feeder; and   a cutter,   wherein:
 the feed driver is configured to receive control signal from a clearing controller to drive the feeder to move at least between a pick-up position and a working position so as to pull down tangles on the roller brush, a distance between the working position and an axis of the roller brush being greater than a distance between the pick-up position and the axis of the roller brush, the cutter being closer to the working position relative to the pick-up position; and 
 the cutter comprising a first shearing member and a second shearing member that are fitted with each other, and the first shearing member and the second shearing member being configured to reciprocate relative to each other to shear off the tangles pulled down by the feeder. 
   
     
     
         2 . The cleaner according to  claim 1 , wherein the feeder comprises a hooking structure, two or more hooking structures are provided and arranged along a length direction of the feeder, and the length direction of the feeder is parallel with the axis of the roller brush. 
     
     
         3 . The cleaner according to  claim 2 , wherein a hook groove with an opening at one end is formed between the hooking structure and the feeder to accommodate at least part of the tangles; and an orientation of the opening of the hooking structure is adapted to a direction of movement of the feeder from the working position to the pick-up position such that the hooking structure acquires the tangles. 
     
     
         4 . The cleaner according to  claim 3 , wherein the hooking structure has an inner arc surface and an outer arc surface arranged oppositely, and the hook groove is formed between the inner arc surface and the feeder; at least part of the outer arc surface inclinedly extends in a direction that forms an included angle with a horizontal plane; and at least part of a top of the outer arc surface is arranged horizontally. 
     
     
         5 . The cleaner according to  claim 2 , wherein a distance between every two adjacent hooking structures is L, and the feeder has a displacement s in a horizontal direction when moving from the pick-up position to the working position, wherein L<s. 
     
     
         6 . The cleaner according to  claim 2 , wherein:
 the hooking structure has an inner arc surface and an outer arc surface arranged oppositely, and a hook groove is formed between the inner arc surface and the feeder to accommodate at least part of the tangles; and   the first shearing member and the second shearing member have overlapping parts in height, a highest point of the overlapping parts is defined as a lower point, and when the hooking structure is in the working position, a top of the inner arc surface is lower than the lower point.   
     
     
         7 . The cleaner according to  claim 6 , wherein the top of the inner arc surface is 1-20 mm lower than the lower point. 
     
     
         8 . The cleaner according to  claim 6 , wherein a horizontal transverse distance perpendicular to a height direction is formed between the feeder and the lower point, and the horizontal transverse distance is in a range of 0-3 mm. 
     
     
         9 . The cleaner according to  claim 2 , wherein:
 the roller brush is located above the feeder and the cutter;   the feeder and the cutter are parallel with the axis of the roller brush; the hooking structure has an inner arc surface and an outer arc surface arranged oppositely;   a hook groove is formed between the inner arc surface and the feeder to accommodate at least part of the tangles;   the first shearing member and the second shearing member have overlapping parts in height, and a highest point of the overlapping parts is defined as a lower point; and   when the feeder is in the working position, the axis of the roller brush and a vertex of the inner arc surface defines a first plane, a distance between the lower point and the first plane is d 1 , the lower point is higher than a top of the inner arc surface, the lower point forms a projective point on the first plane when being orthographically projected relative to the first plane, a distance between the projective point and the top of the inner arc surface is d 2 , a maximum outer diameter of the roller brush is r, and a distance between the axis of the roller brush and the top of the inner arc surface is d 3 , wherein   
       
         
           
             
               
                 
                   
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                   r 
                   
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               , 
             
           
         
       
       0<d 1 <r, and 0<d 2 <d 3 −r. 
     
     
         10 . The cleaner according to  claim 1 , wherein the feed driver is connected to the feeder and drives the feeder to reciprocate between the pick-up position and the working position, and a frequency of a movement of the feeder is smaller than a frequency of a relative reciprocation of the first shearing member and the second shearing member. 
     
     
         11 . The cleaner according to  claim 1 , wherein the cleaner further comprises a shearing drivier, the shearing drivier being connected to the cutter and configured to drive the first shearing member and the second shearing member to reciprocate so as to shear off the tangles, and the shearing drivier and the feed driver at least partially having a same structure. 
     
     
         12 . A base station, wherein the base station comprises a station body and the cleaner according to  claim 1 , the station body is provided with a working chamber for a vacuum cleaner to dock or leave, and the cleaner is embedded in a bottom wall of the working chamber. 
     
     
         13 . The base station according to  claim 12 , wherein the base station comprises the clearing controller, the clearing controller is electrically connected to the feeder and the cutter, the clearing controller controls the cutter to start prior to the feeder, and the clearing controller controls the feeder to stop operation prior to the cutter. 
     
     
         14 . A vacuum cleaner system comprising:
 a vacuum cleaner; and   a base station for maintaining the vacuum cleaner,   wherein:
 the base station comprises a cleaner for clearing away tangles on a roller brush of the vacuum cleaner and a station body, the cleaner comprising:
 a feed driver; 
 a feeder; and 
 a cutter, 
 
   wherein:
 the feed driver is configured to receive control signal from a clearing controller to drive the feeder to move at least between a pick-up position and a working position so as to pull down tangles on the roller brush, a distance between the working position and an axis of the roller brush being greater than a distance between the pick-up position and the axis of the roller brush, the cutter being closer to the working position relative to the pick-up position; and 
 the cutter comprising a first shearing member and a second shearing member that are fitted with each other, and the first shearing member and the second shearing member being configured to reciprocate relative to each other to shear off the tangles pulled down by the feeder; and 
   the station body is provided with a working chamber for the vacuum cleaner to dock or leave, the cleaner is embedded in a bottom wall of the working chamber, and when the vacuum cleaner docks at the working chamber, the cleaner clears away tangles on a roller brush of the vacuum cleaner.   
     
     
         15 . The vacuum cleaner system according to  claim 14 , wherein the vacuum cleaner comprises:
 a roller brush assembly comprising the roller brush and configured to sweep garbage on a surface to work on; and   a controller configured to control the roller brush assembly to rotate or stop according to at least a maintenance state of the vacuum cleaner and directly or indirectly control the cleaner to clear away the tangles on the roller brush when receiving a signal indicating that the roller brush assembly stops at a first preset phase, the controller being further configured to control the roller brush assembly to rotate and stop at one or more phases different from the first preset phase and directly or indirectly control the cleaner to clear away the tangles on the roller brush respectively at a phase where the roller brush assembly stops.   
     
     
         16 . The vacuum cleaner system according to  claim 15 , wherein the vacuum cleaner further comprises a detector, the detector being configured to detect a phase of the roller brush assembly, and the detector being connected to the controller and transmitting the signal about the phase of the roller brush assembly to the controller. 
     
     
         17 . The vacuum cleaner system according to  claim 14 , wherein:
 the vacuum cleaner is provided with a roller brush assembly, the roller brush assembly comprising connectors and a roller shaft, and the connectors being configured to mount the roller brush assembly to the vacuum cleaner;   the roller shaft is connected to the connectors, sweeping members extending along an axial direction of the roller shaft are connected to the roller shaft;   when the roller shaft rotates, the sweeping members are driven to sweep a surface to work on so as to clean the surface to work on; and   the roller brush assembly further comprises guide members, the guide members being arranged at two ends of the roller shaft in a length direction and distributed along a circumferential direction of the roller shaft, and each end of the roller shaft being at least provided with two or more of the guide members to support tangles entangled on the roller brush such that the tangles are away from an outer periphery of the roller shaft when being entangled on the roller brush.   
     
     
         18 . The vacuum cleaner system according to  claim 17 , wherein a respective guide member of the guide members comprises a guide surface and a support surface that are connected to each other, and the guide surface is close to the connector relative to the support surface; and the guide surface is configured to guide the tangles to the support surface, and the support surface is configured to support the tangles on a surface thereof. 
     
     
         19 . The vacuum cleaner system according to  claim 17 , wherein the respective guide member crosses a sweeping member in a length direction of the roller brush assembly. 
     
     
         20 . The vacuum cleaner system according to  claim 15 , wherein the vacuum cleaner further comprises a controller, a fan and a dust box, the controller being connected to the fan, and after the cleaner finishes clearing the roller brush, the controller is configured to control the fan to start so as to suction cut tangles into the dust box.