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Dust-free colored magnetic powder writing blackboard

A magnetic powder and color technology, applied in the field of dust-free color magnetic powder writing blackboard, can solve the problems of inconvenient use, easy reflection, and dust, and achieve the effect of easy erasing, clear handwriting, and smooth writing.

Inactive Publication Date: 2012-02-08
蒋裕美
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dust-free colored magnetic powder writing blackboard, which has no dust, smooth writing, easy and effortless erasing, clear handwriting, and overcomes the shortcomings of existing products such as dust, easy reflection, and inconvenient use.

Method used

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  • Dust-free colored magnetic powder writing blackboard
  • Dust-free colored magnetic powder writing blackboard
  • Dust-free colored magnetic powder writing blackboard

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Embodiment Construction

[0013] Such as Figure 1-3 As shown, a dust-free colored magnetic powder writing blackboard described in the embodiment of the present invention includes a magnetic blackboard with a uniform magnetic field on the surface, colored magnetic powder, a colored powder writing pen and a magnetic powder eraser, and the blackboard core is arranged in sequence by magnetic strips As a result, if the N pole of the first magnetic strip 1 faces outwards, the S pole of the second magnetic strip 2 faces outwards, and the third magnetic strip 3 has an N pole facing outwards, and so on, the first magnetic strip 1 and the second magnetic strip A non-magnetic material 4 is arranged between the strips 2, so that the magnetic field on the surface of the magnetic blackboard made in this way is uniform, and there is no phenomenon of magnetic powder getting together when writing, and the magnetic field only exists within a certain distance from the surface. This distance is equal to the width of the m...

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Abstract

The invention relates to a dust-free colored magnetic powder writing blackboard, which comprises a magnetic blackboard, colored magnetic powder, a colored powder writing pen and a magnetic powder wiper, wherein a uniform magnetic field is arranged on the surface of the magnetic blackboard; the colored magnetic powder consists of three basic colors, namely red, green and blue as well as white; a rolling ball is arranged in the colored powder writing pen; a baffle and a spring are arranged behind the rolling ball; and the rolling ball is produced by attaching a micro steel ball to the spherical surface of a large steel ball. The invention has the beneficial effects of no raise dust, distinct handwriting, smoothness for writing, little effort for wiping and no reflection for board surface; the magnetic powder can be reused, permanent benefits by one-time investment are realized; and the dust-free colored magnetic powder writing blackboard has all advantages of a traditional blackboard; and meanwhile, all defects of the traditional blackboard are overcome.

Description

technical field [0001] The invention relates to a dust-free color magnetic powder writing blackboard. Background technique [0002] In order to solve the dust problem of traditional blackboards, many people have invented various dust-free blackboards, but they have not been widely used. The reason is that although various dust-free blackboards are dust-free, they all have unbearable shortcomings of one kind or another. , For example, some magnetic dust-free blackboards can only write monochrome characters, and painting classes cannot be taken; whiteboards have visual fatigue and reflections; green boards similar to whiteboards are also required to be smooth and reflective because the writing is also a kind of resin. , so that students in a certain area cannot see the content on the blackboard; the traditional blackboard is written with the existing dusty chalk, which has the disadvantage of laborious writing and erasing in addition to dust. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04B43L21/02
Inventor 蒋裕美
Owner 蒋裕美
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