Blackboard eraser capable of sucking dust synchronously
A technology of blackboard eraser and vacuum hole, which is applied in the field of teaching supplies and can solve problems such as physical discomfort
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[0013] Example: as shown in the drawings. Synchronous vacuuming of blackboard erasers, set up a vacuum pipe (2) at the front end of the blackboard eraser (1), set a vacuum hole on the vacuum pipe (2), and connect the vacuum pipe to the negative pressure motor (3) at the end of the pipe The collecting basket (4) is connected, and the chalk dust generated by the movement of the blackboard eraser when in use is collected to the collecting basket (4) through the dust suction pipe.
[0014] The blackboard eraser for synchronous vacuuming is provided with an induction module (5) on the collecting basket (4), and a prompt message is sent out when the chalk dust in the basket is almost full.
[0015] The blackboard eraser for synchronous vacuuming, the way of prompting information is sound or LED light display.
[0016] The blackboard eraser for synchronous dust suction, the dust suction pipe (2) is a twistable structure, and the position can be adjusted as required.
[0017] For blackboard ...
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