Cleaning device

Abstract

The present invention provides a cleaning device, including: a device body ( 10 ); and a cleaning assembly ( 20 ). The cleaning assembly ( 20 ) is connected to the device body ( 10 ). The cleaning assembly ( 20 ) has a first position. A part of the cleaning assembly ( 20 ) is located outside a peripheral side of the device body ( 10 ) when the cleaning assembly ( 20 ) is in the first position. In the present invention, the cleaning assembly is at least partially located outside the peripheral side of the device body, so that the area near an obstacle can be cleaned. The cleaning is more comprehensive, and the cleaning efficiency is improved.

1 . A cleaning device, comprising:
 a device body;   a cleaning assembly movably connected to the device body, the cleaning assembly having a first position and a second position, wherein a part of the cleaning assembly is located outside a peripheral side of the device body when the cleaning assembly is in the first position; and the part of the cleaning assembly that is located outside the peripheral side of the device body when the cleaning assembly is moved to the second position is larger than the part of the cleaning assembly that is located outside the peripheral side of the device body when the cleaning assembly is in the first position.   
     
     
         2 . The cleaning device according to  claim 1 , wherein a distance between the part of the cleaning assembly that is located outside the peripheral side of the device body and an edge of an obstacle is less than or equal to a threshold which is greater than or equal to 0. 
     
     
         3 . The cleaning device according to  claim 1 , wherein at least a part of an edge of the cleaning assembly reaches a line of travel of a maximum width portion of the device body; or
 at least a part of the edge of the cleaning assembly is located inside the line of travel of the maximum width portion of the device body.   
     
     
         4 . The cleaning device according to  claim 1 , wherein at least a part of an edge of the cleaning assembly extends beyond a line of travel of a maximum width portion of the device body when the cleaning assembly is in the second position. 
     
     
         5 . The cleaning device according to  claim 1 , wherein the cleaning device further comprises a second driving structure in drive connection with the cleaning assembly to move the cleaning assembly between the first position and the second position, the cleaning assembly being movable in a straight line or in an arc when driven by the second driving structure. 
     
     
         6 . The cleaning device according to  claim 5 , wherein the device body is provided with a movement channel for movement of the cleaning assembly; the device body is provided with a sealing structure; and
 the sealing structure is driven to move as the cleaning assembly swings, such that when the cleaning assembly is in the first position, in the second position, and in an arbitrary position between the first position and the second position, the sealing structure is capable of sealing or shielding the movement channel.   
     
     
         7 . The cleaning device according to  claim 6 , wherein the sealing structure comprises a first stop portion and a second stop portion, and the cleaning assembly swings to drive the first stop portion and the second stop portion to move, the second stop portion sealing or shielding the movement channel when the cleaning assembly is in the first position; the first stop portion sealing or shielding the movement channel when the cleaning assembly is in the second position; and/or
 the first stop portion and the second stop portion cooperating to seal or shield the movement channel when the cleaning assembly is in the arbitrary position.   
     
     
         8 . The cleaning device according to  claim 1 , wherein the cleaning assembly further has an arbitrary position between the first position and the second position; and
 the cleaning device further comprises a water replenishment mechanism capable of supplying a solution to the cleaning assembly when the cleaning assembly is in at least one of the first position, the second position and the arbitrary position.   
     
     
         9 . The cleaning device according to  claim 8 , wherein the cleaning assembly comprises a cleaning disk, and a cleaning member arranged on the cleaning disk; and
 the water replenishment mechanism has at least one water outlet provided on the device body and/or on the cleaning disk and configured to supply the solution to the cleaning member.   
     
     
         10 . The cleaning device according to  claim 9 , wherein when the water outlet is provided on the device body, a hollowed-out area is provided on the cleaning disk; when the cleaning assembly is in the first position, in the second position and in the arbitrary position, a vertical projection of the hollowed-out area on the bottom of the device body is correspondingly an inwardly retracted vertical projection area, an outwardly swung vertical projection area and a swinging vertical projection area;
 at least a part of the water outlet is located in the inwardly retracted vertical projection area, or in the outwardly swung vertical projection area, or in the swinging vertical projection area; or   at least a part of the water outlet is located in a common overlap region between the inwardly retracted vertical projection area and the outwardly swung vertical projection area; or   at least a part of the water outlet is located in a permanent overlap region between the inwardly retracted vertical projection area, the outwardly swung vertical projection area and the swinging vertical projection area.   
     
     
         11 . The cleaning device according to  claim 1 , wherein the cleaning device further comprises a dust box arranged in the device body,
 the cleaning device further comprises a second driving structure for driving the cleaning assembly to switch between the first position and the second position, and/or a first driving structure for driving the cleaning assembly to rotate; and   a wall surface of the dust box is provided with a first clearance surface forming a clearance space in the device body for mounting the second driving structure and/or the first driving structure.   
     
     
         12 . The cleaning device according to  claim 11 , wherein the dust box further has a second clearance surface, the first clearance surface having an area larger than the area of the second clearance surface, and the second clearance surface forming a clearance space in the device body. 
     
     
         13 . The cleaning device according to  claim 1 , wherein the cleaning assembly is swingable along the bottom of the device body to switch between the first position and the second position; or
 a side wall of the device body is provided with a notch through which the cleaning assembly is swingable to switch between the first position and the second position.   
     
     
         14 . The cleaning device according to  claim 1 , wherein at least two cleaning assemblies are provided, wherein one of two adjacent cleaning assemblies is capable of switching between the first position and the second position, and the other cleaning assembly is held in the first position; or
 two adjacent cleaning assemblies are both capable of switching between the first position and the second position; and/or   when two adjacent cleaning assemblies are both in the first position, the cleaning members of the two adjacent cleaning assemblies are capable of being pressed against each other to eliminate a cleaning gap.   
     
     
         15 . The cleaning device according to  claim 14 , wherein two adjacent cleaning assemblies are both capable of switching between the first position and the second position; and
 during the switching of the cleaning assemblies between the first position and the second position, the two adjacent cleaning assemblies are swingable toward the same side of the device body, and the cleaning members of the two adjacent cleaning assemblies remain pressed against each other.   
     
     
         16 . The cleaning device according to  claim 1 , wherein during the switching of the cleaning assembly between the first position and the second position, the cleaning assembly is rotatable on its own axis, wherein the cleaning assembly rotates on its own axis in a clockwise direction or in a counterclockwise direction; or the cleaning assembly does not rotate on its own axis; or
 at least two cleaning assemblies are provided, wherein two adjacent cleaning assemblies have first sides adjacent to each other and second sides away from each other; during the switching of the cleaning assemblies from the first position to the second position, each of the two adjacent cleaning assemblies rotates in a direction from the respective first side toward the respective second side; and during the switching of the cleaning assemblies from the second position to the first position, each of the two adjacent cleaning assemblies rotates in a direction from the respective second side toward the respective first side.   
     
     
         17 . The cleaning device according to  claim 1 , wherein the cleaning assembly is in the first position when the cleaning assembly is in an obstacle crossing scenario, in a raising scenario, or in a return-to-base station scenario, wherein the return-to-base station scenario comprises at least a charging scenario, a dust collection scenario, a scenario for washing a cleaning member of the cleaning assembly, a cleaning assembly removal scenario, or a scenario for replenishing water by a water replenishment mechanism. 
     
     
         18 . The cleaning device according to  claim 1 , wherein the cleaning device further comprises a second driving structure for driving the cleaning assembly to switch between the first position and the second position, the second driving structure comprising
 a transmission member;   a swing arm rotatably arranged on the device body by means of a spindle, the cleaning assembly being arranged on the swing arm; and   an actuation member arranged on the spindle, wherein two ends of the actuation member act on the swing arm and the transmission member, respectively;   the swing arm cooperates with the transmission member and is driven to rotate by the transmission member, so as to switch the cleaning assembly between the first position and the second position;   during the switching of the cleaning assembly from the first position to the second position, the actuation member stores energy under a driving force of the transmission member and drives the swing arm to rotate; and when the driving force of the transmission member is canceled, the actuation member releases the stored energy to drive the swing arm to continue to swing in the direction of the second position.   
     
     
         19 . The cleaning device according to  claim 18 , wherein the swing arm is provided with a second pressing portion, and the transmission member is provided with an abutment portion; the second pressing portion abuts against the abutment portion; and
 when the cleaning assembly switches from the second position to the first position, the transmission member abuts against the second pressing portion by means of the abutment portion to rotate the swing arm.   
     
     
         20 . A cleaning device, comprising:
 a device body;   a cleaning assembly movably connected to the device body, the cleaning assembly having an initial position and a retracted position; and   a restoring member having one end connected to the cleaning assembly and the other end connected to the device body, the restoring member providing a restoring force for holding the cleaning assembly in the initial position,   wherein a part of the cleaning assembly is located outside a peripheral side of the device body when the cleaning assembly is in the retracted position; and   the part of the cleaning assembly that is located outside the peripheral side of the device body when the cleaning assembly is in the initial position is larger than the part of the cleaning assembly that is located outside the peripheral side of the device body when the cleaning assembly is in the retracted position, and the cleaning assembly switches from the initial position to the retracted position when the part of the cleaning assembly that is located outside the peripheral side of the device body abuts against an edge of an obstacle.