Upright vacuum cleaner has cyclone type dust collector with dust reverse flow prevention pipe at center of inner receptacle base

摘要

An inner receptacle of a cyclone type dust collector (15) formed in a dust chamber (11), has grill with fine holes through which air from the bottom of outer receptacle is passed. The inner receptacle has an air inlet to guide air from the holes into a vortex. A pipe is extended at specific height from the center of the inner receptacle base to prevent reverse flow of collected dust particles.