The disclosure relates to a cleaning robot, controlling method thereof, and cleaning robot charging system, and more particularly, to a technology for a cleaning robot to select a charging device by taking into account whether the charging device is occupied and a distance to the charging device when the charging device is returning to the charging device for charging. The cleaning robot includes a main body; a movement module moving the main body; a communication module configured to request identification information of a charging device occupied by another cleaning robot to the other cleaning robot; and a controller configured to determine a charging device not occupied by the other cleaning robot based on the identification information of the charging device received from the other cleaning robot through the communication module, and to control the movement module to move the main body to the non-occupied charging device.

A device for covering a plurality of different sized robotic systems. The device can include a cover sized to at least partially fit over the robotic system; one or more sidewalls extended from the cover, wherein the one or more sidewalls is configured to removably engage with each of the plurality of different sized robotic systems; and one or more apertures in the cover and/or the one or more sidewalls. The one or more apertures are selectively positioned and sized so as to prevent obstructing the one or more onboard sensors of the respective robotic system when the device is in an assembled state with the respective robotic system.

A device for covering a plurality of different sized robotic systems. The device can include a cover sized to at least partially fit over the robotic system; one or more sidewalls extended from the cover, wherein the one or more sidewalls is configured to removably engage with each of the plurality of different sized robotic systems; and one or more apertures in the cover and/or the one or more sidewalls. The one or more apertures are selectively positioned and sized so as to prevent obstructing the one or more onboard sensors of the respective robotic system when the device is in an assembled state with the respective robotic system.

A vacuum nozzle system has a vacuum nozzle with an inlet opening for engaging a surface to be vacuumed and an outlet opening for connection to a vacuum supply hose. The inlet opening is delimited by a circumferential end face. The nozzle defining a vacuum flow direction from the inlet opening to the outlet opening. A holder bracket has a holder for holding the nozzle. The holder is disposed downstream of the end face in a vacuum flow in the vacuum flow direction when the nozzle is in a retained position on the holder bracket.

A vacuum cleaning utensil has a brush arranged for rotating about a substantially vertical axis. Further, the vacuum cleaning utensil has a guide for pushing the brush towards a surface to be cleaned during only a part of the rotation of the brush. During another part of the rotation, the brush is released from the surface to be cleaned.

A reconfigurable surface cleaning apparatus is provided.

A method of controlling a moving robot is provided. The method of controlling a moving robot includes the steps of: (a) performing a basic motion of the moving robot which moves on a rotating mop; (b) measuring the slip rate of the moving robot; and (c) controlling the travel of the moving robot.

Disclosed is a drainage system for an automatic cleaning storage base of an electric mop. The automatic cleaning storage base of the electric mop comprises a casing member having a cleaning tank. The drainage system comprises a drain valve; an outlet end of the drain valve is connected to the outside of the casing member, and an inlet end of the drain valve is connected to the cleaning tank; the drain valve has a switch, and the switch is provided with a first rack; the drain valve is further provided with a duplex gear and a second rack; the duplex gear has a gear portion with a larger outer diameter to mesh with the first rack, and the duplex gear has a gear portion with a smaller outer diameter to mesh with the second rack.

A vacuum collection vehicle may include a chassis, a vacuum container supported by the chassis, a vacuum source separated from the vacuum container by an intermediate wall and a filter. The vacuum source is in pneumatic connection with the filter through the intermediate wall. A plurality of discharge conduits extend through the intermediate wall, extend over and above the filter, along the roof of the vacuum container. The plurality of discharge conduits have a plurality of respective outlets at different locations within the interior of the vacuum container for discharging collected material into different collection receptacles. The filter is sandwiched between the intermediate wall and the plurality of discharge conduits.

The disclosure provides a debris bin assembly, a cleaning robot and a cleaning robot system, the debris bin assembly includes a debris bin housing, a filter assembly, and a flow guide plate, the debris bin housing includes a top portion and a bottom portion disposed opposite to the top portion, and a side housing surrounding the top portion and the bottom portion, the top portion, the bottom portion and the side housing are enclosed to form an inner cavity, the top portion of the debris bin housing is provided with an air exhaust channel communicating with the inner cavity and an air outlet communicating with the air exhaust channel, the side housing is provided with an air inlet communicating with the inner cavity, the air inlet inclines towards a side where the top portion is located, the filter assembly is disposed in the air exhaust channel of the top portion, the flow guide plate is located in the inner cavity and is disposed opposite to the air inlet, the flow guide plate extends from the top portion to the bottom portion and is configured for intercepting, decelerating and laterally guiding air flow entering from the air inlet, so as to decelerate and laterally guide air flow carrying debris, which avoids debris directly impacting a filter screen at a high speed and attaching to it, and consequently, a problem that the filter screen is easily blocked is solved.