Mechanical dust-proof eraser
A blackboard erasing and mechanical technology, which is applied to the cleaning device of blackboard or slate, printing, office supplies, etc., can solve the problems of high installation and maintenance cost, affecting teaching efficiency, affecting teaching effect, etc., to achieve compact structure and ensure fan Rotation speed, the effect of improving the dust phenomenon
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[0024] The technical solution of the present invention will be described in more detail below in conjunction with the accompanying drawings.
[0025] like Figure 1 to Figure 5As shown, the mechanical dust-proof blackboard eraser of the present invention comprises a scrub brush 1 and a blackboard eraser housing 2, and the said scrub brush 1 is spread over a gap 1-1, and said blackboard eraser housing 2 is provided with a dividing plate 3, and said scrub brush 1 The first square through hole 1-2 and the second square through hole 1-3 are opened at both ends, and the rim of the first big round wheel 4-1 is located in the first square through hole 1-2 , the rim of the second large round wheel 4-2 is located in the second square through hole 1-3. The first large circular wheel 4-1 and the second large circular wheel 4-2 are all fixed on the blackboard eraser shell 2; the rim of the first large circular wheel 4-1 and the second large circular wheel 4-2 Protruding from the outside...
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