Dustproof blackboard eraser

Abstract

The invention relates to a blackboard eraser, in particular to a dustproof blackboard eraser. The dustproof blackboard eraser comprises a blackboard eraser main body, wherein a piece of cleaning cloth is arranged on the front side of a blackboard eraser main body; the blackboard eraser main body is longer than the cleaning cloth; the cleaning cloth is positioned in the center of the front side of the blackboard eraser main body; fan ports are formed in the blackboard eraser main body in positions on two sides of the cleaning cloth; fans are arranged in the fan ports; small holes I are formed in the blackboard eraser main body in positions under the cleaning cloth; a water sack is arranged in the center of the back side of the blackboard eraser main body; battery boxes are arranged on two sides of the water sack; and small holes II are formed in the water sack at the part connected with the blackboard eraser. The invention has the benefits as follows: water in the water sack is extruded onto the cleaning cloth, no chalk dust is produced by using the wet cleaning cloth to clean a blackboard, and the wet blackboard can be air-dried by the fans on the two sides of the cleaning cloth so as to be used normally; and the blackboard eraser is simple in structure, reasonable in design and convenient to use, very applicable to improvement on the conventional teaching environment and suitable for wide popularization.

Description

technical field [0001] The invention relates to a blackboard eraser, in particular to a dustproof blackboard eraser. Background technique [0002] Blackboard eraser is a common tool for teaching, but the chalk dust produced by wiping the blackboard will fly all over the sky, fall on the desk, in front of the podium, and even be inhaled into the human body, affecting mood and even health. [0003] With the advancement of science and technology and the improvement of teaching requirements, the environment of teaching activities also needs to be improved. Therefore, it is necessary to improve the blackboard eraser for the chalk dust flying around when wiping the blackboard. Contents of the invention [0004] Aiming at the above deficiencies, the invention provides a dustproof blackboard eraser. [0005] The present invention is achieved through the following technical solutions: [0006] A dust-proof blackboard eraser, comprising a blackboard eraser main body, the front of ...

AI Technical Summary

Problems solved by technology

[0002] Blackboard eraser is a common tool for teaching, but the chalk dust produced by wiping the blackboard will fly all over the sky, fall on the desk, in front of the podium, and even be inhaled into the human body, which affects the mood and even affects the health.

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