Projection equipment for information technology teaching
The invention discloses projection equipment for information technology teaching, and the equipment comprises two groups of guide rails, two groups of single plates are slidingly connected in the guide rails, the guide rails are also rotatingly connected with synchronous gears, the upper and lower e...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses projection equipment for information technology teaching, and the equipment comprises two groups of guide rails, two groups of single plates are slidingly connected in the guide rails, the guide rails are also rotatingly connected with synchronous gears, the upper and lower ends of the single plates are connected with synchronous racks which are in engaged connection with the synchronous gears, a projection curtain is disposed between the two groups of synchronous gears, and an adjusting mechanism capable of unfolding or folding the projection curtain when the single plates move is arranged between the two groups of single plates and the guide rail. According to the projection equipment for information technology teaching, the projection curtain is arranged betweenthe two single boards of the blackboard and is adjusted through an adjusting mechanism, the projection curtain can be unfolded and folded by pushing the single boards to move, the projection curtain can be folded and unfolded |
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