System for dust catcher and constituting by dust catcher and basic station

The utility model relates to a dust catcher (1), the battery dust catcher of especially handheld guide, it has suction nozzle (2), dust catcher dust collecting chamber (4) and fan (5) that possess filter (3), wherein, in order to aspirate in when operation suction in the thing carries dust catcher dust collecting chamber (4), suction nozzle (2) link to each other with fan (5) through flow path (6), and wherein, dust catcher (1) can be connected with basic station (7), an in basic station (7) are carried in fan (5) for making contain in dust catcher dust collecting chamber (4) the suction thing clearance operation in -process with the help of dust catcher (1), wherein, attach troops to an unit between filter (3) and fan (5) flow path (6) has the bridgeware (8), bridgeware (8) on the contrary can follow the suction position be transformed into the clearance position and can follow the clearance position be transformed into the suction position, bridgeware (8) are designed to be done, open flow path in clearing