Cyclone dust collecting apparatus for a vacuum cleaner

摘要

A cyclone dust collecting apparatus for a vacuum cleaner includes a hollow cylindrical cyclone body having an open upper end through which air and contaminants are drawn in and a dust discharge port located proximate a lower end of the cyclone body. The dust discharge port receives contaminants that have been separated from the air by centrifugal force and discharged from the cyclone body. The apparatus further includes a dust receptacle connected to the cyclone body for collecting the contaminants discharged from the cyclone body through the dust discharge port. A base member is connected to and closes the lower end of the cyclone body and the dust receptacle, and a cover is removably connected to the upper end of the cyclone body and the dust receptacle. The cover has an air intake channel for drawing in outside air and contaminants into the cyclone body and an air discharge channel for discharging clean air from the cyclone body. The apparatus further includes a backflow prevention means for guiding contaminants that have been discharged from the cyclone body into the dust receptacle and preventing a backflow of the contaminants collected in the dust receptacle from returning to the cyclone body.