Blackboard eraser with dust collection effect and using method thereof

Abstract

The invention discloses a blackboard eraser with a dust collection effect, and relates to the technical field of teaching appliances. The blackboard eraser comprises a shell, wherein the two ends of the shell are rotationally connected with a rolling brush shaft, belt wheel shafts and roller shafts, and are connected with two fixed shafts side by side; the two ends of the fixed shafts are rotationally connected with worms; driven wheels are fixed at one ends of the worms; an electrostatic adsorption plate is fixed on the inner wall of the shell; the two outer walls of the shell are connected with dust collection boxes; the rolling brush shaft is connected with a rolling brush; rolling brush worm wheels are fixed at the two ends of the rolling brush shaft; the belt wheel shafts are in transmission connection with the rolling brush shaft; the two belt wheel shafts are connected through two transmission belts; a scraping plate is connected between the two transmission belts; and rollers and driving wheels are fixed at the two ends of the roller shafts and are used for driving the rolling brush shaft to rotate. According to the blackboard eraser, dust adsorption is realized through theelectrostatic adsorption plate, so that the situation of dust flying is effectively avoided; and the dust adsorbed on the surface of the electrostatic adsorption plate is scraped through the scrapingplate, and is collected by utilizing the dust collection boxes, so that the influence of the dust on the body health of a human body is effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of teaching tools, in particular to a blackboard eraser with dust collection effect and a use method thereof. Background technique [0002] As a common tool in the teaching process, blackboard eraser is used to effectively erase chalk writing. Existing chalk used mainly contains two kinds of common chalk and dust-free chalk, and existing chalk main component is calcium carbonate and calcium sulfate, or contains a small amount of calcium oxide. [0003] Existing conventional blackboard erasers only erase chalk writing from the blackboard surface during actual use, and do not have the collection function. The wiped chalk dust is scattered, causing a large amount of chalk dust to fly, seriously affecting the health of teachers and students. [0004] Therefore, urgently need to improve existing blackboard eraser, to realize dust collection effect, avoid chalk dust to fly, the situation that affects human health...

AI Technical Summary

Problems solved by technology

[0003] Existing conventional blackboard erasers only erase chalk writing from the surface of the blackboard during actual use, and do not have the collection function. The wiped chalk dust is scattered, causing a large amount of chalk dust to fly, seriously affecting the health of teachers and students

[0004] Therefore, it is urgent to improve the existing blackboard eraser, so as to realize the dust collection effect, avoid chalk dust from flying, and affect the health of the human body.

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