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Automatic movable dust-free blackboard eraser

An automatic blackboard eraser and blackboard eraser technology, which is applied to the cleaning device of blackboard or slate, printing, office supplies, etc., can solve the problems of physical loss, high cost, powder flying everywhere, etc., and achieve the effect of large area and high efficiency

Inactive Publication Date: 2016-01-27
NANJING POLYTECHNIC INSITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In daily teaching and learning, blackboard erasers are frequently used tools by students, teachers, and cleaning personnel. However, when traditional blackboard erasers are used, the powder flies around, which not only stains the clothes of the users and nearby personnel, but also It is very harmful to the body, so I hope to have a dust-free blackboard eraser, but for the cleaning staff, it is generally necessary to clean many blackboards on one floor. If each blackboard takes 2 minutes, wipe 10 or more b

Method used

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  • Automatic movable dust-free blackboard eraser
  • Automatic movable dust-free blackboard eraser

Examples

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Embodiment Construction

[0013] figure 1 It is a schematic diagram of the structure of the blackboard eraser. When the blackboard eraser is moved to the teaching place, the automatic blackboard eraser can be connected to the existing blackboard through the fixing device 5. At the same time, the distance between the blackboard eraser and the original blackboard can be adjusted through the adjustment device above. At this time, the motor 13 fixed on the trolley 11 can be controlled to rotate forward and reverse to drive the gear 4 and then drive the rack meshed with it, and then drive the blackboard eraser to move up and down. The height of the blackboard eraser can be adjusted, and the blackboard eraser 2 The area of ​​the blackboard eraser is much larger than that of the ordinary blackboard eraser, which is many times that of the ordinary blackboard eraser, which improves the efficiency, and the blackboard eraser structure 2 dust is not easy to float outside, and there are some gaps in the middle so th...

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Abstract

The invention discloses an automatic movable dust-free blackboard eraser. A movable trolley 11 is arranged at the bottom so that the blackboard eraser can be moved. A gear 4 and a rack 3 can be used for wiping a blackboard automatically under the driving of a motor 13. Dust generated in the blackboard wiping process can enter a dust box 12 by means of a dust collection device 10 through a pipeline 6 and a hose 8. The automatic blackboard eraser can be connected to an existing blackboard through a fixing device 5 in the blackboard wiping process. The purpose of adjusting the blackboard wiping pressure can be realized by adjusting the fixing device 5. The blackboard eraser has the characteristics of being movable, free of dust, automatic and the like; the blackboard eraser is simple in structure and practical and can be used in teaching places.

Description

technical field [0001] The invention belongs to the field of teaching facilities, and in particular relates to a movable, automatic and dust-free blackboard eraser, which is mainly used for wiping blackboards in teaching places. Background technique [0002] In daily teaching and learning, blackboard erasers are frequently used tools by students, teachers, and cleaning personnel. However, when traditional blackboard erasers are used, the powder flies around, which not only stains the clothes of the users and nearby personnel, but also It is very harmful to the body, so I hope to have a dust-free blackboard eraser, but for the cleaning staff, it is generally necessary to clean many blackboards on one floor. If each blackboard takes 2 minutes, wipe 10 or more blackboards in a row. For blackboards, people’s physical strength is a great loss, so I hope to have an automatic blackboard eraser, and if each classroom is equipped with an automatic blackboard eraser, the cost will be ...

Claims

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Application Information

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IPC IPC(8): B43L21/02
Inventor 虞启凯刘萍萍吴晓燕曾敏
Owner NANJING POLYTECHNIC INSITUTE
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