Turnover type dust isolation blackboard

Abstract

The invention discloses a turnover type dust isolation blackboard. A first writing board face is arranged on one side of a frame. A first turnover board is arranged on one side of the frame and is hinged to one side of the frame. A second writing board face is formed on the inner side of the first turnover board, and first wiping space is formed between the second writing board face and the firstwriting board face. A third writing board face is arranged on the other side of the frame. A second turnover board is arranged on the other side, opposite to the first turnover board, of the frame andis hinged to the other side of the frame. A fourth writing board face is formed on the inner side of the second turnover board, and second wiping space is formed between the fourth writing board faceand the third writing board face. According to the turnover type dust isolation blackboard, the blackboard can be turned over, the closed wiping space can be formed by the writing board faces of theblackboard, dust is prevented from directly entering the atmospheric environment in the wiping process, and the body health of students and teaches is facilitated; and meanwhile, two writing board faces can be cleaned at a time, and the blackboard wiping efficiency can be improved.

Description

technical field [0001] The invention relates to a blackboard, in particular to a folding dust-proof blackboard. Background technique [0002] The blackboard is an essential teaching tool in schools for teachers to write on the blackboard. Existing blackboards are usually a single fixed board or a sliding board. When the blackboard is full, erase it with an eraser. During the erasing process of the current blackboard, the erased board surface must be exposed to the external environment, and the dust generated after erasing will directly enter the environment, affecting teachers and students. of good health. And one erasing action can only clean up one blackboard board surface, and erasing efficiency is low. [0003] The Chinese patent with the publication number CN202573486U discloses a multi-layer folding blackboard, including two parts: a fixed blackboard and a folding blackboard. The fixed blackboard is provided with murals; The folding blackboard is respectively provi...

AI Technical Summary

Problems solved by technology

Although this technical solution realizes the folding of the board surface, the board surface must be exposed to the external environment during the erasing process, and the dust directly enters the atmospheric environment, and only one board surface can be erased at a time, which is inefficient

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