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Dust absorption cloth

A technology of blackboard and positive charge layer, applied in the field of dust-absorbing cloth, can solve the problems of unfavorable health of teachers and students

Inactive Publication Date: 2019-05-03
陶宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a dust-absorbing cloth, which can solve the technical problem that a large amount of dust will be generated when wiping the blackboard, and they float in the classroom, which is harmful to the health of teachers and students

Method used

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  • Dust absorption cloth
  • Dust absorption cloth

Examples

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Effect test

Embodiment Construction

[0010] Such as figure 1 As shown, a dust-absorbing cloth includes a blackboard 1, and a dust-absorbing cloth 2 is provided on the four sides of the blackboard 1 at the bottom.

[0011] A positive charge layer 3 and a negative charge 4 are sequentially arranged in the dust-absorbing cloth 2 .

[0012] When in use, the current generated by the positive and negative charges contained in the dust-absorbing cloth can absorb chalk dust.

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Abstract

The invention provides a dust absorption cloth, comprising a cup body, and a heater is arranged at the bottom of the cup body. The dust absorption cloth provided by the invention can solve the technical problem that a large amount of dust generates when erasing a blackboard, the dust floats in the classroom and is not beneficial to the health of teachers and students.

Description

technical field [0001] The invention relates to a dust-absorbing cloth. Background technique [0002] Now in our classroom teaching, although electronic whiteboards have been popularized, most school teachers still use chalk, which will generate a lot of dust when wiping the blackboard, which floats in the classroom and is not good for the health of teachers and students, so I thought of using Vacuum cloth to absorb chalk dust and reduce the damage of dust to us. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a dust-absorbing cloth, which can solve the technical problem that a large amount of dust will be generated when wiping the blackboard, and they float in the classroom, which is harmful to the health of teachers and students. [0004] In order to solve the above problems, the technical solution to be solved in the present invention is: [0005] A dust-absorbing cloth comprises a blackboard, and the bottom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
Inventor 陶宇
Owner 陶宇
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