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Novel blackboard eraser

A blackboard eraser, a new type of technology, applied in the field of teaching equipment, can solve problems such as chalk dust scattered, falling into the eyes, hidden dangers to the health and safety of teachers and students, and achieve the effect of eliminating hidden safety hazards

Inactive Publication Date: 2017-09-12
SHANGHAI GEZHI JUNIOR HIGH SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When teachers and students use blackboard erasers to wipe chalk dust, there will be a lot of chalk dust scattered, which may fall on the sleeves of clothes, or fall into the eyes and inhale the nose, which may cause health problems for teachers and students. security risks

Method used

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  • Novel blackboard eraser

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0019] 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.

[0020] Based on the above-mentioned problems that existing marking pens exist, a kind of novel blackboard eraser...

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Abstract

The invention discloses a new type of blackboard eraser, which comprises a blackboard eraser main body and a handle, which is arranged on the hand-held side of the blackboard eraser main body for holding the blackboard eraser main body; an electrostatic dust removal device is nested in the blackboard eraser Main body side wall for electrostatic precipitator. The beneficial effects of the above technical solutions: a large amount of dust can be effectively blocked, that is, the potential safety hazard caused by the dust to the health of the user is eliminated, and the dust is prevented from falling on the sleeves.

Description

technical field [0001] The invention relates to teaching tools, in particular to a novel blackboard eraser. Background technique [0002] When teachers and students use blackboard erasers to wipe chalk dust, there will be a lot of chalk dust scattered, which may fall on the sleeves of clothes, or fall into the eyes and inhale the nose, which may cause health problems for teachers and students. safety hazards. Contents of the invention [0003] For the above-mentioned problems that existing technology exists, a kind of technical scheme of novel blackboard eraser is provided now, specifically as follows: [0004] A novel blackboard eraser, which includes a blackboard eraser main body, [0005] A handle, located on one side of the main body of the blackboard eraser, is used to hold the main body of the blackboard eraser; [0006] The electrostatic dust removal device is nested on the side wall of the main body of the blackboard eraser, and is used for electrostatic dust re...

Claims

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Application Information

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IPC IPC(8): B43L21/02
CPCB43L21/02
Inventor 顾云骁
Owner SHANGHAI GEZHI JUNIOR HIGH SCHOOL
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