Abstract: A mobile rack for a dust collector includes a base frame on which the dust collector is mountable, a support frame detachably fastened to the base frame, and a plurality of wheels detachably mounted on the base frame such that the base frame is movable on a floor. The support frame has a mounting portion connectable to a part of the dust collector that is mounted on the base frame.

Abstract: A cleaning device is used in a dust collector having a body and a tubular filter set mounted in the body for cleaning the inside wall of the tubular filter set of the dust collector. The cleaning device includes a first shaft transversely pivoted to the body of the dust collector and provided with a driving member, a second shaft longitudinally pivoted to the body of the dust collector and provided with a driven member coupled to the driving member of the first shaft, and elastic scrapers mounted on the second shaft and contacted with the inside wall of the tubular filter set for removing dust from the inside wall of the tubular filter set upon rotary motion of the second shaft subject to the rotation of the first shaft.