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Brush blackboard eraser

A technology of blackboard eraser and hair brush, which is applied in the field of blackboard eraser, and can solve the problems that the blackboard cannot be wiped clean.

Inactive Publication Date: 2014-06-25
重庆市江北中学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the current blackboard eraser cannot clean the blackboard after being used for a long time, the present invention provides a new type of blackboard eraser with a brush and a chalk dust collection device.

Method used

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  • Brush blackboard eraser

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Embodiment Construction

[0009] specific implementation plan

[0010] Insert the sponge (3) into the plastic box (1) with the side opening, the plastic plate (2) is installed on the side gap of the plastic box (1) through a small hinge, and the handle (4) is installed on the plastic plate (2) , many small holes are dug on the top of the plastic box (1), and the brush bristles (5) are inlaid in the small holes to ensure that there are still many scattered small holes after inlaying.

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Abstract

The invention provides a novel blackboard eraser with a brush and a chalk dust collecting device and aims to solve the problem that existing blackboard erasers can not completely clean a blackboard after used for a long time. A piece of sponge is placed in a plastic box, an opening is designed in the side surface of the plastic box, a side casing is connected with a casing through a small hinge, many small holes are formed in the top of the box, brush bristles are inlaid into the blackboard eraser to form a brush, many small holes are still reserved after the brush bristles are mounted, thereby, the blackboard can be easily and completely cleaned with the brush, the chalk dust falls into the box through the small holes, and when much chalk dust is accumulated in the box, a user can open a side door to dump the chalk dust.

Description

technical field [0001] The invention relates to a blackboard eraser with a brush and a device for collecting chalk dust. Background technique [0002] The existing blackboard eraser consists of a sponge embedded in the handle. When in use, hold the handle, rub the chalk on the blackboard hard, and wipe it off by friction. However, the existing blackboard eraser cannot be erased after a long period of use. clean. Contents of the invention [0003] In order to overcome the problem that the existing blackboard eraser cannot be wiped clean after being used for a long time, the invention provides a novel blackboard eraser with a brush and a chalk dust collection device. [0004] The technical solution adopted by the present invention to solve the technical problem is: place a piece of sponge in a plastic box with a side opening, the side shell is connected to the shell through a small hinge, and many small holes are dug on the top of the box, and the brush hairs are inlaid on ...

Claims

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Application Information

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IPC IPC(8): B43L21/00
Inventor 朱雨
Owner 重庆市江北中学校
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