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Automatic blackboard eraser

An automatic blackboard eraser and blackboard technology, applied in the field of blackboard erasers, can solve the problems of slow and laborious wiping of the blackboard, and achieve the effect of fast wiping speed and convenient use.

Inactive Publication Date: 2014-08-06
GUANGXI ELECTRICAL POLYTECHNIC INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an automatic rolling blackboard eraser, thereby overcoming the shortcoming of slow and laborious wiping of the blackboard

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0026] like figure 1 and figure 2 As shown, the automatic blackboard eraser of the present invention, rolling erasing mechanism 1, it comprises roller frame 11, roller shaft 10, and it is arranged on described roller frame 11 in a rotatable manner, and on this roller shaft 10, surrounds A hairbrush is provided, and the right end of the roller shaft 10 is provided with a second synchronous pulley 12; the first driving device 3 includes a guide rail 31 and a leading screw (rolling screw) 32 on the left side of the blackboard 2 that are respectively located on the left side of the blackboard 2 , the lower end of the lead screw 32 is connected with the first motor (stepping motor) 33, the right end of the roller frame 11 is connected with the protective cover 34 covering the screw nut (not shown), the protective cover 34 A motor base 35 is provided on the motor base 35, and a second motor (DC motor) 41 is arranged on the motor base 35. The first synchronous pulley 42 connected t...

Embodiment 2

[0028] like figure 1 and image 3 Shown, a kind of automatic blackboard eraser, its difference with embodiment 1 is: a hole 52 is opened in the middle part of ash collecting tank 51, hose 53 is connected with hole 52, and the outlet end of hose 53 is connected with vacuum cleaner 54 , the dust collector 54 is connected with the ash box 55 .

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Abstract

The invention discloses an automatic blackboard eraser which comprises a rolling erasing mechanism, a rolling shaft, a first drive device, a second drive device and a dust removal device. The rolling erasing mechanism comprises a rolling shaft frame. The rolling shaft is rotatably arranged on the rolling shaft frame, and a brush is arranged around the rolling shaft. The first drive device comprises a guide rail arranged on one side of a blackboard and a screw on the other side of the blackboard, one end of the screw is connected with a first motor, one end of the rolling shaft frame is connected with a screw nut, the screw nut is connected with a screw in a matched mode, and the other end of the rolling shaft frame is arranged on the guide rail in a sleeved mode. The second drive device is connected with the rolling shaft. The automatic blackboard eraser is convenient to use, erasing speed is high, no dust flies when the blackboard eraser is used, damage of the dust to human bodies is avoided, and environment protection is achieved.

Description

technical field [0001] The invention relates to a blackboard eraser, in particular to an automatic blackboard eraser. Background technique [0002] School teachers will constantly use the blackboard eraser to erase chalk words on the blackboard when giving lectures. The traditional blackboard eraser is a small hand-held blackboard eraser. This kind of blackboard eraser needs to be wiped directly by hand. During the uninterrupted teaching process every day, the frequent use of the blackboard eraser makes the teacher very tired and the speed of wiping It's also slow, and the dust is flying around. Seriously affected the health of teachers and students. [0003] The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02B43L21/00
Inventor 梁建智湛年远谢祥强隆丹宁张海燕何翠杨铭李建新谭永平
Owner GUANGXI ELECTRICAL POLYTECHNIC INST
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