| 摘要 |
A vacuum dust-collecting barrel is loaded on a movable loading frame. The vacuum dust-collecting barrel is provided with a cover, a starting device (electric motor) is provided on the cover, an entrance is provided in the cover for a sucking pipe to be inserted therein, and notches are disposed in the circumference of the cover. The movable loading frame is provided with a base seat, sliding wheels are provided at the bottom of the base seat, pivotal articles are disposed on the circumference of the base seat, each pivotal article is connected with a movable piece, each movable piece is provided with a screw hole for receiving the screwing section of each hanging ring.
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