Electric chock-dust absorbing wiper for blackboard
The utility model is the renewal design of the existing blackboard eraser. The utility model is characterized in that an erasing disc is driven by a miniature motor in an eraser body to cause brush hairs to erase a blackboard. Meanwhile, the miniature motor drives an axial flow fan to suck dust and...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model is the renewal design of the existing blackboard eraser. The utility model is characterized in that an erasing disc is driven by a miniature motor in an eraser body to cause brush hairs to erase a blackboard. Meanwhile, the miniature motor drives an axial flow fan to suck dust and cause the dust not to fly. The blackboard eraser is labor-saving, and the blackboard eraser can prevent dust from polluting environment. |
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