Blackboard with three surfaces capable of being turned
A three-side flipping blackboard technology, applied in the field of blackboards, can solve the problems of low utilization rate of blackboards, hazards, chalk dust and inhalation health of wipers, etc., to achieve the effect of thorough wiping, improved writing space, and easy flip angle
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[0015] As shown in the figure, a blackboard with three sides turned over is composed of a blackboard main body device 1 and a blackboard eraser device 2. The blackboard eraser device 2 is arranged on the back side of the blackboard main board device 1 to wipe the blackboard main board device. The blackboard main body device 1 The middle part is provided with a plurality of turning bars 101 which are turned over by the control of the power device. The turning bars are installed horizontally and horizontally. Both sides of 101 are respectively provided with a reserved board 102, and described blackboard eraser device 2 is made up of lead screw 201, blackboard eraser 202 and light bar 203 driven by motor, and blackboard eraser 202 upper and lower ends are respectively provided with a hole, is used for covering Be located on the lead screw 201 and the feed rod 203 that are arranged parallel to each other, and slide and set along the feed rod 203, wipe the blackboard on the back of ...
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