CYCLONE DUST SEPERATING APPARATUS FOR VACUUM CLEANER

摘要

A cyclone dust collecting apparatus for a vacuum cleaner is provided to secure the dust collecting efficiency by preventing the impurities from moving backwardly to the grill unit by the skirt placed at the backflow prevention member. A cyclone dust collecting apparatus(10') for a vacuum cleaner comprises a cyclone body(11) connected to the extension pipe; an inner cover(20) installed at the lower side of the cyclone body and formed like a hollow cone, wherein upper and lower ends are opened; a grill unit(40) installed at the lower end of the air discharge pipe of the cyclone body to discharge the air; and an impurity collecting box mounted at the lower side of the inner cover to receive the impurities falling from the inner cover. The grill unit contains a backflow prevention member(50) extended from the lower end of the grill unit to the outside of the lower end of the inner cover. The backflow prevention member contains a skirt(52) separated from the opened port, and an extended column(51).