A device for erasing chalk dust on a blackboard for teaching

A technology of blackboard eraser and chalk dust, which is applied to blackboard or slate cleaning devices, office supplies, chemical instruments and methods, etc., can solve problems such as poor effect, chalk dust affects people's health, and affects the use effect of blackboard eraser. Reduce the effect of drifting in the air, avoiding the effect of drifting in the air

Active Publication Date: 2021-06-11
赣州琪易科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes that after the blackboard eraser is used many times, its surface is covered with chalk dust, which will affect the use effect of the blackboard eraser. Therefore, it is necessary to regularly remove the chalk dust on the surface of the blackboard eraser, and manually pat the blackboard to erase the chalk. When ash, the effect of removing chalk dust is not good, and chalk dust floats in the air and affects people's health. teaching blackboard eraser chalk dust equipment

Method used

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  • A device for erasing chalk dust on a blackboard for teaching
  • A device for erasing chalk dust on a blackboard for teaching
  • A device for erasing chalk dust on a blackboard for teaching

Examples

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Effect test

Embodiment 1

[0026] A kind of equipment for erasing chalk dust with a blackboard for teaching, such as Figure 1-4As shown, it includes a bottom plate 1, a box body 2, a piston 3, a pressure rod 4, an air outlet pipe 5, a first one-way valve 6, an air inlet pipe 7, a second one-way valve 8, a first bracket 9, a processing box 10, Cover plate 11, first clamping block 12, clamping rod 14, fixing frame 15, spring 16, first fixing block 17, second fixing block 18, motor 20 and gear 21, and the top right side of bottom plate 1 is provided with box body 2, The box body 2 is provided with a piston 3, the top of the piston 3 is provided with a pressure rod 4, the lower part of the right wall of the box body 2 is provided with an air outlet pipe 5, and the first check valve 6 is arranged in the air outlet pipe 5, and the lower part of the left wall of the box body 2 is provided with Air intake pipe 7 is arranged, and the middle part of air intake pipe 7 is provided with second one-way valve 8, and ...

Embodiment 2

[0028] A kind of equipment for erasing chalk dust with a blackboard for teaching, such as Figure 1-4 As shown, it includes a bottom plate 1, a box body 2, a piston 3, a pressure rod 4, an air outlet pipe 5, a first one-way valve 6, an air inlet pipe 7, a second one-way valve 8, a first bracket 9, a processing box 10, Cover plate 11, first clamping block 12, clamping rod 14, fixing frame 15, spring 16, first fixing block 17, second fixing block 18, motor 20 and gear 21, and the top right side of bottom plate 1 is provided with box body 2, The box body 2 is provided with a piston 3, the top of the piston 3 is provided with a pressure rod 4, the lower part of the right wall of the box body 2 is provided with an air outlet pipe 5, and the first check valve 6 is arranged in the air outlet pipe 5, and the lower part of the left wall of the box body 2 is provided with Air intake pipe 7 is arranged, and the middle part of air intake pipe 7 is provided with second one-way valve 8, and...

Embodiment 3

[0031] A kind of equipment for erasing chalk dust with a blackboard for teaching, such as Figure 1-4 As shown, it includes a bottom plate 1, a box body 2, a piston 3, a pressure rod 4, an air outlet pipe 5, a first one-way valve 6, an air inlet pipe 7, a second one-way valve 8, a first bracket 9, a processing box 10, Cover plate 11, first clamping block 12, clamping rod 14, fixing frame 15, spring 16, first fixing block 17, second fixing block 18, motor 20 and gear 21, and the top right side of bottom plate 1 is provided with box body 2, The box body 2 is provided with a piston 3, the top of the piston 3 is provided with a pressure rod 4, the lower part of the right wall of the box body 2 is provided with an air outlet pipe 5, and the first check valve 6 is arranged in the air outlet pipe 5, and the lower part of the left wall of the box body 2 is provided with Air intake pipe 7 is arranged, and the middle part of air intake pipe 7 is provided with second one-way valve 8, and...

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Abstract

The invention relates to a device for removing chalk dust, in particular to a device for erasing chalk dust on a blackboard for teaching. The technical problem to be solved by the present invention is to provide a device for erasing chalk dust on a teaching blackboard that can quickly remove chalk dust and prevent chalk dust from floating in the air. In order to solve the above-mentioned technical problems, the present invention provides such a device for erasing chalk dust on a blackboard for teaching, which includes a bottom plate, a box body, a piston, a pressure rod, an air outlet pipe, a first one-way valve, an air intake pipe, a second one-way Valve, first bracket, processing box, cover plate, first block, etc.; there is a box on the right side of the bottom plate top, a piston in the box, a pressure rod on the top of the piston, and an air outlet pipe on the lower part of the right wall of the box. , a first one-way valve is arranged in the air outlet pipe. The invention achieves the effect that the chalk dust can be quickly removed and the chalk dust can be prevented from floating in the air.

Description

technical field [0001] The invention relates to a device for removing chalk dust, in particular to a device for erasing chalk dust on a blackboard for teaching. Background technique [0002] Teaching is a human-specific talent training activity composed of teachers' teaching and students' learning. Through this activity, teachers guide students to actively and consciously learn and accelerate the acquisition of basic cultural and scientific knowledge and Basic skills can promote the overall improvement of students' quality in many aspects, so that they can become the people needed by the society. The concept of teaching is abstracted and summarized from the teaching phenomenon and teaching practice, and the connotation of teaching has also developed with the development of history. [0003] It is often used to write on the blackboard during teaching. The blackboard eraser can be used to wipe off the chalk on the blackboard. When the blackboard eraser is used many times, its ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B1/00B01D47/06B43L21/00
CPCB01D47/06B08B1/00B43L21/00
Inventor 张克湖
Owner 赣州琪易科技有限公司
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