Air duct structure of a cleaning tool

Abstract

This application provides an air duct structure for a floor brush used as a cleaning tool, including a base and a wastewater tank assembly. The wastewater tank assembly includes a roller brush and a housing disposed on one side of the roller brush. The housing is mounted on the base and contains a wastewater chamber. The roller brush is connected to the wastewater chamber via a suction channel. An air duct opening is provided within the wastewater chamber. A fan is installed inside the base, and an air inlet connected to the fan is provided on the base. An air guide cavity is provided on the base, and the air duct opening is connected to the air inlet through the air guide cavity. The fan can draw air from the wastewater chamber through the air duct opening and discharge it to the outside. The air duct structure provided in this application allows the fan to be connected to the air duct openings on both sides of the wastewater chamber via the air inlet and the air guide cavity, thereby connecting to the outside of the roller brush through the wastewater chamber and the wastewater channel. This air duct structure places the fan and the air guide cavity inside the floor brush, resulting in a shorter airflow distance compared to existing vacuum cleaners, thus improving suction efficiency.

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