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Dust-removing blackboard eraser and method of use thereof

A blackboard eraser and blackboard technology, which can be applied to cleaning devices for blackboards or slates, office supplies, printing, etc., can solve the problems of slow speed, laborious, and not well solved.

Inactive Publication Date: 2015-11-18
陈浩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to popularize due to reasons such as inconspicuous effect, troublesome operation, and high price.
In addition, ordinary blackboard erasers are generally more laborious when wiping the blackboard, and the effect is poor and the speed is slow.
These problems have not yet been well resolved

Method used

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  • Dust-removing blackboard eraser and method of use thereof
  • Dust-removing blackboard eraser and method of use thereof
  • Dust-removing blackboard eraser and method of use thereof

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Embodiment Construction

[0040] Now in conjunction with accompanying drawing, the present invention will be further described.

[0041] As shown in the picture, this blackboard eraser includes:

[0042] The base 1, the base body of the blackboard eraser, has a hollow groove 101 in its middle.

[0043] Wipe 2, used to wipe the chalk writing on the blackboard, set in the middle of the groove of the base, and fixed on the groove of the base, the surface of the wiper is higher than the port surface of the dust removal sheet, and the wiper is made of sponge and other materials It can also be selected according to actual needs.

[0044] An elastic body is provided between the wiper surface and the bottom of the base. In order to make the elastic strength of the wiper greater than that of the dust removal sheet, a spring may also be provided between the wiper and the bottom of the base. In order to facilitate the dust to enter the chamber, the surface of the wiper 2 in the gap between the wiper 2 and the d...

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Abstract

The invention relates to a dust collecting blackboard eraser and an application method thereof. The blackboard eraser comprises an eraser body and a base. The base is provided with a groove and a cavity. The blackboard eraser is characterized in that a dust collecting piece with an inward port is disposed on the periphery of the port of the base, an eraser body surface is higher than the port surface of the dust collecting piece, when the base is pressed, the dust collecting piece and the eraser body surface contact with a blackboard simultaneously, the position the eraser body surface is changed, the eraser body surface is as high as the port surface of the dust collecting piece, a gap is formed between the eraser body and the dust collecting piece, the cavity is opened, dust is stopped and stored in the cavity by the dust collecting piece at the gap. An elastic body is disposed between the eraser body surface and the bottom of the base. A eraser body wall is smooth and inclined. The blackboard eraser can further be provided with an magnetic part. The eraser body wall is provided with a clearance sleeve matched with tip of the dust collecting piece. A stopping piece is disposed in the cavity. The dust collecting piece is provided with a cut opening. The base is provided with retaining piece of the eraser body. By the dust collecting blackboard eraser, dust flying is solved, and health of students and teachers can be protected.

Description

technical field [0001] The invention relates to stationery and educational supplies, in particular to a dust-removing blackboard eraser and a using method thereof. Background technique [0002] Blackboard eraser and blackboard are essential cultural and educational supplies in teaching activities. Now blackboards are mostly made of polymer alloy particles and epoxy resin through one-time pressing, which can attract magnetic substances. During the teaching process, when the general blackboard eraser wipes the chalk writing, it will cause the phenomenon of dust flying everywhere, which will affect the teaching, pollute the environment, and endanger the health of teachers and students. In order to solve this type of problem, people have also developed a lot of blackboard erasers for dust removal. For example, the authorization announcement number CN201646175U published in the Chinese patent literature, the authorization announcement date is 2010.11.24, and the utility model n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L21/02B43L21/00
Inventor 陈浩高宝岩嵇红亮宣琳
Owner 陈浩
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