| 摘要 |
<p>A cyclone separation device (101) is provided with: a collection vessel (11), a bottom cover (16), a rotatable compacting member (23), and a filter disposed above the compacting member (23). Air which is sucked in from an air inflow port (7a) swirls around an inner circumferential surface (11r), after which this air is discharged through the filter. The compacting member (23) is provided with: a disc part (23d) which is disposed at a distance from the bottom cover (16); a rotary shaft part (23b) which extends from the disc part (23d) towards the bottom cover (16); and a helical protrusion (23a) provided on the outer circumferential surface of the compacting member (23). The rotary shaft part (23b) comprises a first portion (231) which is positioned at a distance from the bottom cover (16), and a second portion (232) which has a smaller diameter than the first portion (231). The helical protrusion (23a) is disposed at the outer circumferential surface of the first portion (231).</p> |
