Washing dustproof chalk dust erasing device

A chalk and water collecting tank technology is applied in the field of teaching tools, which can solve the problems of reducing the learning efficiency of students, the powder is not easy to clean, the harm to the human body, etc., and achieves the effects of reducing the harm to the human body, preventing the powder from flying, and reducing the trouble.

Inactive Publication Date: 2016-06-15
尹全宝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nowadays, most of the blackboard erasers used for teaching in schools are hand-held blackboard erasers. When erasing the handwriting on the blackboard, the powder will often fly, and the powder will cause harm to the human body if it is sucked into the human body, and the powder will fall on the ground. Difficult to clean, reducing students' learning efficiency

Method used

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  • Washing dustproof chalk dust erasing device
  • Washing dustproof chalk dust erasing device

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Embodiment Construction

[0009] Such as figure 1 , 2 As shown, the present invention comprises a blackboard 1, a tubular eraser 2, a casing 3, a pulley 4 and a slide rail 5, and is characterized in that, the two sides of the blackboard 1 are provided with slide rails 5, and the bottom of the blackboard 1 is provided with a sump 8, The slide rail 5 is provided with a pulley 4 matched with the slide rail 5, and the pulley 4 is fixed on both sides of the case 3, and a pipe-type wiper 2 is fixed inside the case 3, and the pipe-type wiper 2 faces the blackboard 1 One side is provided with two rows of horizontally arranged water outlets 6, and one end of the tubular wiper 2 is connected with a water pump 7 pipes.

[0010] Through the above settings, when the present invention is in use, the water pump 7 will transport water to the tube-type wiper 2 through the pipeline, and the water will be sprayed onto the blackboard 1 by the water outlet 6 of the tube-type wiper 2, and the casing 3 will be moved, and th...

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Abstract

The invention discloses a water-washing dustproof chalk powder erasing device, which comprises a blackboard, a tubular eraser, a casing, a pulley and a slide rail, and is characterized in that slide rails are arranged on both sides of the blackboard, and a water collection tank is arranged at the bottom of the blackboard , there are pulleys matched with the slide rails on the slide rail, the pulleys are fixed on both sides of the case, inside the case there are fixed tube-shaped wipers, and the tube-type wipers are arranged in two rows horizontally towards the side of the blackboard One end of the tube type wiper is connected with the water pump pipeline. The invention is simple in structure and easy to use, effectively prevents the phenomenon of powder flying during the process of erasing chalk powder, reduces the harm to the human body caused by inhaling powder, and the chalk powder adheres to the water and stays in the water collection tank, reducing the need for cleaning chalk. end of trouble.

Description

technical field [0001] The invention relates to a teaching tool, in particular to a washing dustproof chalk powder erasing device. Background technique [0002] Nowadays, most of the blackboard erasers used for teaching in schools are hand-held blackboard erasers. When erasing the handwriting on the blackboard, the powder will often fly, and the powder will cause harm to the human body if it is sucked into the human body, and the powder will fall on the ground. It is not easy to clean, which reduces the learning efficiency of students. Contents of the invention [0003] The purpose of the present invention is exactly to provide a kind of washing dustproof chalk dust erasing device. [0004] For achieving the above object, the present invention comprises blackboard, tubular eraser, casing, pulley and slide rail, it is characterized in that, described blackboard both sides are provided with slide rail, blackboard bottom is provided with sump, is provided with on slide rail ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
CPCB43L21/02
Inventor 尹全宝
Owner 尹全宝
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