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Solar blackboard eraser with dust collection function

A technology of blackboard eraser and solar energy, which is applied to cleaning devices for blackboards or slates, printing, and office supplies, etc. It can solve the problems of teachers' impossibility and physical injury, and achieve the effects of improving classroom efficiency, reducing hazards, and ensuring quietness

Inactive Publication Date: 2016-01-20
SHANGHAI GEZHI HIGH SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present and for a long time in the future, it is impossible for teachers to write with chalk, let alone wear masks in class. If things go on like this, it will cause great harm to the body

Method used

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  • Solar blackboard eraser with dust collection function

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0026] As shown in Figure 1, a solar dust-absorbing blackboard eraser includes a blackboard eraser body, a cavity is arranged inside the blackboard eraser body, and the inside of the cavity is divided into a first chamber 1 and a second chamber 2, A dust suction device is provided inside the first chamber 1, and the second chamber 2 is a dust storage chamber. The invention is provided with a dust suction device, which can absorb chalk dust, and is provided with a storage device at the same time, which is used to store chalk dust, remove the quantity of chalk dust in the classroom, and reduce the harm of chalk dust to students and teachers.

[0027] As a further preferred embodiment, a porous plastic plate 3 is arranged on the top of the blackboard eraser body of the present invention, and a piec...

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Abstract

The invention relates to dust suction devices, in particular to a solar blackboard eraser with a dust collection function. The solar blackboard eraser with the dust collection function is characterized in that the solar blackboard eraser comprises a blackboard eraser body; a cavity is formed in the blackboard eraser body, and the interior of the cavity is divided into a first chamber and a second chamber; a dust collection device is arranged inside the first chamber, and the second chamber serves as a dust storage chamber. Compared with the prior art, the solar blackboard eraser with the dust collection function has the advantages that the dust collection device is arranged, and thus chalk dust can be adsorbed; meanwhile, a storage device is arranged and used for storing the chalk dust, in this way, chalk dust in a classroom is removed, and the harm of the chalk dust to students and teachers is reduced.

Description

technical field [0001] The invention relates to a dust suction device, in particular to a solar dust-absorbing blackboard eraser. Background technique [0002] Chalk is an indispensable tool in our daily teaching process. Teachers can contact every day, contact with chalk, naturally they will inevitably contact with chalk dust. Every time I finished writing, the chalk dust would make the teacher feel uncomfortable. Over the years, the particles of chalk dust have a strong ability to adsorb germs, and the composition of chalk is alkaline. Harmful germs and alkaline substances can easily cause inflammation, dryness, atrophy, itching, chapping, lung cancer, emphysema and kidney damage to the respiratory system, skin, ears, nose and throat of teachers and students. The secondary pollution of chalk dust has been lingering in the classroom. Students are responsible for wiping the blackboard and are in the classroom from morning to night. Chalk dust is more harmful to the health ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
Inventor 罗贯予
Owner SHANGHAI GEZHI HIGH SCHOOL
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