Dust catcher suction head and contain dust catcher of this suction head

The utility model discloses a dust catcher suction head, include the aspiration channel and set up in the shell body in this aspiration channel outside still have and keep apart just parallel arrangement's play tuber pipe with the aspiration channel, the play tuber pipe lies in the inside center department of aspiration channel, just go out the cross -sectional area less than or equal to of tuber pipe aspiration channel cross -sectional area's is half the. The utility model also discloses a dust catcher of containing this suction head, including above -mentioned suction head, soup stick and host computer. The soup stick including respectively with the aspiration channel of suction head and induced draft channel and the air -out passageway that the play tuber pipe is connected, the host computer is including induced drafting mechanism and air -out mechanism, induced draft the mechanism with induced draft channel connects, air -out mechanism with the air -out path connection. The utility model discloses an incr