A blackboard eraser automatic cleaning device

Abstract

The invention discloses an automatic dust cleaning device for a wiper, which includes a placing bucket, a cleaning mechanism, a filtering mechanism and a collection bucket. A support for supporting the wiper is installed on the inner wall of the placing bucket. The cleaning mechanism is installed in the placing bucket. A hose is provided below the bucket, one end of the hose is connected to the outlet of the bucket, the other end of the hose is connected to the filtering mechanism, and the collection bucket is detachably installed below the filtering mechanism. The invention has a simple structure, cleans the dust on the surface of the eraser, can collect the dust for recycling and reuse, is healthy and environmentally friendly, and has good implementation prospects.

Description

technical field [0001] The invention relates to the technical field of automatic dust removal for a blackboard eraser, in particular to an automatic dust removal device for a blackboard eraser. Background technique [0002] Chalk is a tool widely used in daily life, and it is also the most widely used teaching tool at present. Ancient chalk is usually made of natural chalk, but nowadays it is replaced by other substances. The composition of chalk is a white precipitate of calcium sulfate It is not easy to be decomposed, and excessive inhalation of chalk dust can easily cause discomfort in the nose, pharynx and throat. [0003] In the normal course of class, the teacher often needs to write and draw on the blackboard to explain. In a class of 45 to 50 minutes, he has to erase and write several times. A thick layer of chalk dust has accumulated on the blackboard. The existing technology In the process, the eraser is often collided with other objects, or the surface of the era...

AI Technical Summary

Problems solved by technology

[0002] Chalk is a tool widely used in daily life, and it is also the most widely used teaching tool at present. Ancient chalk is usually made of natural chalk, but nowadays it is replaced by other substances. The composition of chalk is a white precipitate of calcium sulfate It is not easy to be decomposed, and excessive inhalation of chalk dust can easily cause discomfort in the nose, throat and throat

[0003] In the normal course of class, the teacher often needs to write and draw on the blackboard to explain. In a class of 45 to 50 minutes, he has to erase and write several times. A thick layer of chalk dust has accumulated on the blackboard. The existing technology In the process, the eraser is often collided with other objects, or the surface of the eraser is used to scrape the surface of the eraser, so that the dust on the eraser falls off. However, this method does not cure the root cause, and it is easy to cause secondary scattering of dust, which pollutes the environment and endangers personal health.

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