FIELD: mechanical engineering, in particular, vacuum cleaning equipment.
SUBSTANCE: dust catcher has cyclone case provided with air inlet channel and air outlet channel for creating of dust-laden vortex air flow, which is introduced through air inlet channel, and dust collecting container detachably connected to cyclone case so as to collect dust separated by centrifugal force of vortex flow in cyclone case. Double-grid unit for impeller is located in cyclone case in upstream portion of air outlet channel and adapted for preventing air from flowing back through air outlet channel. Double-grid unit has external grid, internal grid and device for collecting of fine-dispersion dust located in downstream portion of double-grid unit of impeller in cyclone case and adapted for collecting of fine-dispersion dust which has not been removed by means of double-grid unit. Dust collecting container of double structure has external cylinder of diameter equal to that of cyclone case, and internal cylinder of diameter equal to that of external grid. Dust collecting container is thus divided into first and second dust collecting regions, and is provided with at least one dust outlet channel for drawing dust from first dust collecting region into second dust collecting region arranged in inner lower part of internal cylinder. Dust catching device is detachably fixed in dust catcher of vacuum cleaner main casing for separate collection of dust contained in air delivered through suction brush tip. Vacuum cleaner has suction brush with tip open toward surface to be cleaned, and electric engine chamber incorporating engine for creating suction force at tip. Rotating main casing of vacuum cleaner is connected to suction brush and is equipped with air outlet channel and air inlet channel, with both channels being connected to electric engine chamber.
EFFECT: increased efficiency in catching of dust, provision for avoiding lifting of collected dust in container and thereby reducing backflow of fine-dispersion dust.
26 cl, 8 dwg
