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Blackboard facilitating absorbing dust

A kind of blackboard and convenient technology, applied in the direction of reusable writing board, cleaning device for blackboard or slate, printing, etc. Improve the learning environment, the effect of simple structure

Inactive Publication Date: 2018-04-06
重庆康普达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The blackboard that adopts chalk to write is still in use so far, because all produces a large amount of dust when writing with chalk and wiping the blackboard, and the main component of chalk is calcium carbonate, calcium sulfate, after a long time, can be harmful to human body, and It also affects the teaching environment and affects students' concentration on learning

Method used

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  • Blackboard facilitating absorbing dust

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Experimental program
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Effect test

Embodiment

[0015] like figure 1 As shown, the blackboard convenient for dust suction includes a blackboard 1 arranged vertically and horizontally, and a dust suction branch pipe 2 is horizontally arranged on the lower side of the blackboard 1, and several left and right equal intervals are arranged vertically on the 2 dust suction branch pipes. The lower end of each dust suction pipe section is connected with the dust suction branch pipe 2, and its upper end is all close to the writing board surface of the blackboard 1; the dust suction branch pipe 2 is connected with the main pipe 7, and the outlet end of the main pipe 7 is installed with Aspirator pump 6, the outlet end of aspirator pump 6 is connected with buffer tank 4 by pipeline and this pipeline is connected at the bottom of buffer tank 4, and exhaust pipe 3 is arranged at the top of buffer tank 4, between aspirator pump 6 and buffer tank 4 Valves are installed on the pipelines between them.

[0016] In this embodiment, the black...

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Abstract

The invention relates to a blackboard convenient for ash suction, belonging to the technical field of blackboard design. The vacuum pipe sections arranged at intervals; the lower end of each vacuum pipe section is connected with the vacuum branch pipe, and its upper end is closely attached to the writing board surface of the blackboard; the vacuum branch pipe is connected with a main pipe, and the outlet end of the main pipe is installed with a suction pump The outlet end of the suction pump is connected to a buffer tank through a pipeline and the pipeline is connected to the bottom of the buffer tank, an exhaust pipe is arranged on the top of the buffer tank, and a valve is installed on the pipeline between the suction pump and the buffer tank. The blackboard with convenient dust absorption of the present invention has a simple structure, the dust of the chalk can be quickly removed when writing and wiping the blackboard, a good teaching environment is provided for teaching, and the students' learning environment is effectively improved. learning environment.

Description

technical field [0001] The invention relates to a blackboard which is convenient for absorbing dust, and belongs to the technical field of blackboard design. Background technique [0002] The blackboard that adopts chalk to write is still in use so far, because all produces a large amount of dust when writing with chalk and wiping the blackboard, and the main component of chalk is calcium carbonate, calcium sulfate, after a long time, can be harmful to human body, and It also affects the teaching environment and affects the students' concentration on learning. Contents of the invention [0003] According to the deficiencies in the prior art above, the technical problem to be solved by the present invention is: provide a kind of blackboard that is convenient to absorb ashes, its structure is simple, when writing and wiping the blackboard, the chalk dust can be removed quickly, for teaching It provides a good teaching environment and effectively improves the learning enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/04B43L21/02
CPCB43L1/04B43L21/02
Inventor 吴荣玉
Owner 重庆康普达科技有限公司
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