Drawing device for mathematics teaching

Abstract

The invention belongs to the technical field of mathematics teaching, and particularly relates to a drawing device for mathematics teaching. The drawing device comprises a bottom plate; the bottom ofthe bottom plate is fixedly connected with an idler wheel, and the top of the bottom plate is fixedly connected with a supporting rod; and the top of the supporting rod is fixedly connected with a waste box, and the surface of the waste box is movably connected with a movable cover through hinges. According to the drawing device, by arranging the idler wheel, the device can be moved conveniently;through the waste box, dust falling from chalk during drawing can be collected to prevent the situation that the dust falls to the bottom of a teaching frame and consequently cannot be cleared; through a rotating motor, the rotating motor works to drive a lead screw to rotate, the lead screw drives a threaded block and a connecting plate to move left and right, and thus a drawing on a writing board is erased automatically; through a dust collector, the dust generated during working of a board wiper can be sucked and is conveyed into a storing tank through a dust collection pump, and thus people are prevented from sucking the excessive dust; and the whole device is reasonable in structure, convenient to use and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of mathematics teaching, and in particular relates to a drawing device for mathematics teaching. Background technique [0002] Mathematics is a subject that studies concepts such as quantity, structure, change, space, and information. From a certain perspective, it is a kind of formal science, and mathematics also plays an irreplaceable role in human historical development and social life. [0003] In the analysis process of mathematical geometry, a drawing device is needed for geometric drawing, but the existing drawing devices are relatively simple. After a picture is taught, it needs to be erased manually with an eraser, so the teacher will spend part of the time Come to wipe the blackboard, which greatly reduces the teacher's work efficiency, and will produce a lot of dust while wiping the blackboard. If too much dust is absorbed, it will have an impact on human health. Contents of the invention [00...

AI Technical Summary

Problems solved by technology

[0003] In the analysis process of mathematical geometry, a drawing device is needed for geometric drawing, but the existing drawing devices are relatively simple. After a picture is taught, it needs to be erased manually with an eraser, so the teacher will spend part of the time Come to wipe the blackboard, which greatly reduces the work efficiency of the teacher, and will produce a lot of dust while wiping the blackboard. If too much dust is absorbed, it will affect the health of the human body

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