Dedusting blackboard for junior school students

Abstract

The invention discloses a dedusting blackboard for junior school students. The dedusting blackboard for junior school students comprises a blackboard body; the top of the right side of the blackboardbody is fixedly connected with a supporting board; the top of the supporting board is fixedly connected with a motor; the output end of the motor is fixedly connected with a first bevel gear; and theleft side of the first bevel gear is engaged with a second bevel gear. Through cooperative use of the blackboard body, a vertical rod, a fixing block, a slide sleeve, a dust suction pipe, a fan, a dust suction head, a dust conveying pipe, a dust removing hole, a dust collection box, a dust falling box, a slide rod, the supporting board, the motor, the first bevel gear, the second bevel gear, a first connection rod, an opening, a second connection rod, a threaded sleeve, a threaded rod, a shell, a first shell, a vertical eraser, a first spring, a cross rod, a second shell, a second spring, a first connection board, a second connection board and a third spring, the problem that existing dedusting blackboards for junior school students are poor in dedusting effect is solved, and the dedustingblackboard for junior school students has the advantage of good dedusting effect.

Description

technical field [0001] The invention relates to the technical field of teaching supplies, in particular to a dust-removable blackboard for junior high school students. Background technique [0002] The blackboard does not specifically refer to the black board surface. In the traditional sense, it is a plane that can be written repeatedly. The board surface is hard and is mostly used for teaching. Most of them are black, dark green, and white. [0003] The importance of present social education, the teacher is indispensable to write on the blackboard with chalk when teaching lessons, the blackboard that existing chalk is used for writing, dust flies everywhere, has had a strong impact on the health of teachers and students, has also polluted the environment, although There have also been many electric and remote control blackboard brushes. During use, the magnetic eraser and the steel blackboard are used to fit together to realize the function of cleaning chalk. use. Conte...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a dust-removable blackboard for junior high school students, which has the advantage of good dust removal effect, and solves the problem of poor dust removal effect of the existing dust-removable blackboard for junior high school students

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