Patent ID: 7797790

Claim:
A vacuum cleaner, comprising: a suction nozzle that draws in polluted air through operation of a motor; a dust collecting assembly that separates and collects impurities from the polluted air, wherein the dust collecting assembly includes: a dust collecting container that has a dust collecting space formed therein; a polluted air inlet that directs polluted air into the dust collecting container; a clean air outlet that directs clean air out of the dust collecting container; an anti-rotation plate provided in the dust collecting container, wherein the anti-rotation plate extends upward from a lower portion of the dust collecting container so as to prevent impurities collected in the dust collecting container from being rotated by air flowing in a spiral in the dust collecting container; and a filtering device positioned in the dust collecting container, wherein the filtering device filters impurities from the polluted air; a main body, including: a dust collecting assembly receiving groove that receives the dust collecting assembly; a polluted air outlet coupled to the polluted air inlet of the dust collecting assembly, wherein the polluted air outlet discharges polluted air drawn in through the suction nozzle into the dust collecting assembly; and a clean air inlet provided on an inner rear wall of the dust collecting assembly receiving groove, facing a rear wall of the dust collecting assembly, wherein the clean air inlet is in communication with the clean air outlet of the dust collecting assembly so as to receive clean air discharged from the dust collecting assembly; an inner flow tube coupled to the clean air outlet of the dust collecting assembly and extending toward the filtering device so as to form a passage through which clean air is discharged from the filter device to the clean air outlet of the dust collecting assembly, wherein the anti-rotation plate extends between an outer wall of the inner flow tube and an inner wall of the dust collecting container; and a packing member provided between the clean air inlet of the main body and the clean air outlet of the dust collecting assembly so as to maintain airtightness therebetween, wherein the packing member comprises: a packing body portion inserted in and coupled to the clean air inlet of the main body; and an elastic member coupled to an inner side of the packing body and closely adhered to the clean air outlet of the dust collecting assembly, wherein the elastic member is configured to filter impurities from air passing therethrough.