Abstract: A cleaning system includes: a cleaning appliance comprising a base member, which is provided with a mechanical cleaning arrangement, and a fluid tank; and a cleaning apparatus for cleaning the mechanical cleaning arrangement of the cleaning appliance, the cleaning apparatus including: a container having a recess for receiving the base member; and a nozzle arrangement associated with the recess. The nozzle arrangement is connected to an inlet in a flow-conducting manner. The fluid tank has an outlet which, to clean the cleaning arrangement, is connectable to the inlet of the cleaning apparatus.

Abstract: A cleaning appliance includes: a main body with a bottom side, the main body being assigned on the bottom side, which faces toward a floor to be cleaned, at least one cleaning body, the at least one cleaning body being mounted on the main body so as to be rotatable about an axis of rotation, the axis of rotation of the cleaning body being oriented perpendicularly to the bottom side. The at least one cleaning body is mounted in the main body such that, during cleaning, the axis of rotation is movable relative to the bottom side along a movement path which is oriented perpendicularly to the axis of rotation.

Abstract: A wheel includes: a hub; and a running wheel body, which includes a tread on an outer periphery thereof. The tread includes segments. The segments are essentially planar. First segments of the segments are inclined toward one end face of the running wheel body and second segments of the segments are inclined toward an other end face of the running wheel body.