Abstract: The present invention provides a floor cleaner and a water sink structure thereof. In the present invention, a water sink is formed on a surface of a cleaning cylinder by a rotating roller, and a conventional water sink structure formed by a shell water sink and a filter screen is not required, so that the structure is simpler. Since a water outlet conduit and a water pumping conduit are arranged vertically to the surface of the cleaning cylinder, water is discharged and pumped on a surface of an outer sponge layer, the water supply and water pumping systems will not be blocked, and the water discharge effect and the water pumping effect are better.

Abstract: The present invention provides a handheld sweeping and mopping structure, comprising a handle and a body shell, wherein a sweeping and mopping module, a water tank module, a driving module, a garbage collection module, a control module and a power supply module are provided inside the body shell. The handheld sweeping and mopping structure of the present invention can sweep the floor and also mop the floor, has higher efficiency and better effect than the conventional sweeping and mopping mode; and meanwhile, a disposable garbage box which is convenient to replace is used, and it is unnecessary to clean the garbage box repeatedly.