Drum-type dust collection blackboard eraser
The utility model discloses a drum-type dust collection blackboard eraser. The drum-type dust collection blackboard eraser is composed of an electrostatic generation device, a battery, a dust containing cavity, a motor and a drum blackboard eraser body, wherein the battery and the motor are connecte...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a drum-type dust collection blackboard eraser. The drum-type dust collection blackboard eraser is composed of an electrostatic generation device, a battery, a dust containing cavity, a motor and a drum blackboard eraser body, wherein the battery and the motor are connected; the drum blackboard eraser body is fixed to a bearing of the motor; the dust containing cavity is provided with a rubber plug; a layer of polyester brush wraps the drum blackboard eraser body. The drum-type dust collection blackboard eraser has the advantages that the drum blackboard eraser body is driven by the motor to rotate, the polyester brush wrapping the drum blackboard eraser body can rapid erase chalk words on a blackboard, the chalk dust is left on the polyester brush, and the electrostatic generation device can suck the chalk dust into the dust containing cavity. The drum-type dust collection blackboard eraser is high in efficiency for erasing the blackboard, simple in structure, convenient to use and |
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