A water tank assembly configured to be installed on a base station is provided. The water tank assembly includes: a tank body defined with a sewage cavity, the tank body being provided with a water inlet channel and a sewage discharging channel communicating with the sewage cavity; the sewage cavity being configured to receive sewage coming through the water inlet channel under a negative pressure inside the sewage cavity introduced by an external air source, and configured to discharge the sewage through the sewage discharging channel under a positive pressure inside the sewage cavity introduced by the external air source; and a one-way valve arranged in the water inlet channel, in case the sewage cavity is in a positive pressure state, the one-way valve being in a closed state, and in case the sewage cavity is in a negative pressure state, the one-way valve being in an open state.

An autonomous floor cleaning system includes an autonomous floor cleaner with a docking station. The docking station is configured to performing maintenance for the autonomous floor cleaner, such as refilling the autonomous floor cleaner, emptying the autonomous floor cleaner, washing mopping pads, and/or recharging the autonomous floor cleaner. The docking system can supply heated cleaning fluid to the autonomous floor cleaner. Methods for servicing or performing maintenance on an autonomous floor cleaner by a docking station are disclosed.

The invention relates to a self-propelled and self-steering floor cleaning apparatus comprising: a running gear for traveling on the floor surface; at least one cleaning device for cleaning the floor surface; a control device; and a sensor device, the control device being formed and configured to locate or navigate the floor cleaning apparatus in an environment depending on at least one signal from the sensor device, the sensor device comprising, on a front side of the floor cleaning apparatus with respect to its forward direction, a first distance measuring unit which is configured as or comprises a stereo camera system and a second distance measuring unit which is configured as or comprises a scanning unit with structured light, wherein viewing areas of the first distance measuring unit and of the second distance measuring unit are directed in the forward direction of the floor cleaning apparatus and overlap, and wherein the second distance measuring unit is located above the first distance measuring unit on the floor cleaning apparatus with respect to a height direction. The invention also relates to a floor cleaning system.

A cleaning base used for laundry treatment is provided. The cleaning base includes a bottom frame and a water inlet pipeline. A cleaning portion, and a cleaning cavity for containing a ground cleaning device are formed in the base. The cleaning portion is used for cleaning at least part of the ground cleaning device. The water inlet pipeline is in communication with the cleaning portion and a tap water source. Since the water inlet pipeline is in communication with the tap water source, it is not necessary to provide a water storage structure having a large structural size for the cleaning base. The overall structural size of the cleaning base is reduced. The tap water source can continuously supply water to a cleaning tank. Thus, a user does not need to manually add water to the water storage structure.

A base station of a cleaning device and a cleaning system are provided. The base station of the cleaning device includes: a base station body having an accommodating chamber for accommodating the cleaning device and an opening for the cleaning device to enter or exit the accommodating chamber; and a water injection assembly including a movable base, and a movable plate, a lifting mechanism, and a water injection pipe that are disposed on the movable base. The water injection pipe is configured to inject water into the cleaning device. The lifting mechanism is configured to drive the water injection pipe to move. A first elastic member is disposed between the movable plate and a side wall of the accommodating chamber. The cleaning device is contacted with the movable plate during a water injection process of the water injection assembly.

The invention relates to a floor cleaning system, having a mobile floor cleaning apparatus that comprises at least one cleaning unit for cleaning a floor surface, a reservoir for receiving a cleaning liquid, a dirt receiving device for taking up dirty liquid from the floor surface, and a dirty liquid container into which the dirty liquid is transferable; and further having a docking station for the floor cleaning apparatus, which is docked thereto in a docked position; wherein the docking station has at least one supply conduit with a connection element arranged thereon, the floor cleaning apparatus having at least one liquid conduit with a connection element arranged thereon; wherein the floor cleaning apparatus comprises a rinsing device on or in the dirty liquid container; and wherein, when the floor cleaning apparatus is in the docked position, the connection elements are coupled to one another such that the reservoir is fillable with the cleaning liquid via the at least one liquid conduit and a rinsing liquid for rinsing the dirty liquid container is applicable to the rinsing device via the at least one liquid conduit.

The invention relates to a floor treatment system, comprising a mobile floor treatment apparatus and a docking station therefor, wherein the floor treatment apparatus has at least one liquid container with a container wall and a container interior, as well as at least one liquid conduit for providing a liquid for the container interior; wherein the docking station comprises a supply conduit which, in a docked position of the floor treatment apparatus on the docking station, is in fluidic connection with the at least one liquid conduit; wherein the floor treatment system comprises an opening device by way of which a wall portion of the container wall is movable, for clearing at least one container opening of the at least one liquid container, into an open position, and in the docked position of the floor treatment apparatus the liquid can exit from the container interior through the container opening.

The present invention relates to a floor treatment system, comprising a mobile floor treatment apparatus and a docking station therefor, wherein the floor treatment apparatus comprises a control device, at least one control line coupled thereto, and an electrical energy storage device for supplying energy to the floor treatment apparatus, and the docking station comprises at least one actuator and at least one control line coupled thereto; wherein, when the floor treatment apparatus is in a docked position on the docking station, the control lines are coupled to one another in contact-based manner by way of control line connection elements, wherein the floor treatment system comprises a detection device for determining whether the floor treatment apparatus is in the docked position, and wherein, if this is determined positively, at least one of the actuators of the control device is actuatable or controllable by way of the control lines. The present invention further relates to a method for operating such a floor treatment system.

The invention relates to a floor treatment system, comprising a mobile floor treatment apparatus and a docking station therefor, wherein the floor treatment apparatus has at least one liquid container with a container wall and a container interior, wherein the docking station comprises at least one supply conduit through which, in a docked position of the floor treatment apparatus on the docking station, a liquid is suppliable to the container interior, wherein the floor treatment system comprises an opening device by way of which a wall portion of the container wall is movable into an open position, for clearing at least one container opening of the at least one liquid container, and in the docked position of the floor treatment apparatus the liquid can exit from the container interior through the container opening, and wherein the wall portion is transferable into the open position by the opening device by moving the floor treatment apparatus from a non-docked position into the docked position.

A cleaner includes a body defining an exterior appearance of the robot cleaner; a cleaning module coupled to the body and capable of performing cleaning with water. The cleaner also includes a water tank capable of being withdrawn from the body, and storing water to be supplied to the cleaning module. The cleaner also includes a light source inside the body, and positioned to allow emitted light to pass through the water tank and then discharged outside of the body.