SUCTION FLOW SPEED CONTROL APPARATUS AND VACUUM CLEANER HAVING THE SAME

摘要

PURPOSE: A device for controlling suction force, and a vacuum cleaner including the same are provided to increase and decrease the speed of flowing air which comprises filth inhaled from a suction nozzle. CONSTITUTION: A device for controlling suction force comprises a first suction flow path, a second suction flow path, and an opening and closing unit. One end of the first suction flow path is connected to a main body of a vacuum cleaner, and the other end is formed in a flow path connection member connected to a suction nozzle(2). The second suction flow path has a first port communicated with outside, and a second port communicated with the first suction flow path. The opening and closing unit opens and closes the second port.