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Computer Mathematics Plotter

A computer and graphing device technology, applied in the field of computer mathematical graphing devices, can solve problems such as inability to standardize drawing, and achieve the effects of convenient teaching and drawing, accurate circle drawing, and standardized drawing

Inactive Publication Date: 2018-09-07
HUANGHE S & T COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a computer mathematics drawing device, which effectively solves the problem that the existing mathematics teaching cannot standardize the drawing in the drawing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1, the present invention is a computer mathematics graphing device, mainly used in mathematics teaching, convenient for drawing, accurate in drawing, making it easier for students to understand, its structure includes a drawing board 1, used for drawing, on the drawing board The rear side of 1 is fixed with a cloth rolling groove 2, and the cloth rolling groove 2 is fixed on the drawing board 1, and a first rotating shaft 3 is installed at the bottom of the lower end of the cloth rolling groove 2, and a second rotating shaft 3 is installed at both ends of the first rotating shaft 3. A coil spring 4, so that the first rotating shaft 3 can be reversed and reset by itself after rotation. The first rotating shaft 3 is wound with a cloth roll 5, which can be pulled out or wound on the first rotating shaft 3. The end of the cloth roll 5 Two ends and the middle of the two ends are connected with steel rope 6 respectively, reduce elasticity as far as possible.

[003...

Embodiment 2

[0040] Embodiment 2, on the basis of Embodiment 1, the upper end of the cloth rolling groove 2 has an opening for passing the cloth rolling 5; It is fixed on the rear side of the drawing board 1 for fixing the drawing board 1.

Embodiment 3

[0041] Embodiment 3. On the basis of Embodiment 1, the clamping device includes a second rotating shaft 30 placed on both sides of the opening of the upper end of the cloth rolling groove 2. The upper end of the second rotating shaft 30 is integrally connected with a clamping piece 31. The clamping piece 31 is provided with teeth 32 for clamping the roll cloth 5, the second rotating shaft 30 lower end is connected with a handle 33, the handle 33 can be rotated so that the teeth 32 clamp the roll cloth 5, so that the roll cloth 5 cannot be pulled out or take back.

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Abstract

The invention relates to a computer mathematical drawing device. The problem that existing mathematical teaching cannot draw normatively in the drawing process is solved effectively. According to thetechnical scheme, the computer mathematical drawing device comprises a drawing board, the back side of the drawing board is fixedly provided with a cloth winding groove, and the bottom of the cloth winding groove is provided with a first rotating shaft; first coil springs are installed at the two ends of the first rotating shaft, and coil cloth is wound around the first rotating shaft and connected with a rigid rope; the upper end of the drawing board is fixedly provided with a pulley group, and the rigid rope is connected with a straight ruler; a clamping device is installed at the upper endof the cloth winding groove; a plurality of grooves are formed in the reverse face of the straight ruler, and a first magnetic block is placed in each groove; the straight ruler comprises a shell, a rack is installed on the inner upper side face of the straight ruler, and the rack meshes with a first gear and a second gear; and third rotating shafts are arranged in the first gear and the second gear in a penetrating mode, sleeves are arranged at the upper end and the lower end of each third rotating shaft in a sleeving mode, the lower end of the sleeve at the lower end of each third rotating shaft is connected with a sliding block, and a first pointer is fixedly arranged on the outer side of each sleeve in a sleeving mode. According to the computer mathematical drawing device, teaching drawing is convenient, and drawing is normative.

Description

technical field [0001] The invention relates to the technical field of computer mathematics teaching, in particular to a computer mathematics graphing device used in teaching. Background technique [0002] Computer mathematics is a subject in universities. In university mathematics teaching, in order to enable students to intuitively understand the meaning of mathematical formulas, teachers often draw mathematical formulas on the blackboard. In the existing university teaching drawing, teachers use hand-painted Freehand drawing in the form of drawing, in the process of drawing, often the drawing size is not standard, there is no drawing coordinate system, the drawing line is curved, when drawing a circle, the radius size on the ruler is accurate, but it is often drawn out The radius of the circle is different from the actual radius. It is often either too large or too small, and a complete and regular circle cannot be drawn, so that the drawn graphics do not match the formul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L13/00
CPCB43L13/001
Inventor 王淑英王红胜蔡晶晶赵建峰李云帆郝芳王炜
Owner HUANGHE S & T COLLEGE
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