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Auxiliary teaching device for drawing curve chart

A technology that assists teaching and graphs, applied to non-circular curve plotters, drawing boards, teaching aids, etc., can solve the problems of wasting time, inaccurate drawing, errors, etc., achieve the effect of accurate drawing and improve drawing efficiency

Pending Publication Date: 2018-11-13
杨先平
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of wasting a lot of time in the process of drawing a plane Cartesian coordinate system on the blackboard, and the drawing is not accurate, there are also large errors in the coordinates of the points found on the blackboard, and the teaching efficiency is low. An auxiliary teaching device for graph drawing

Method used

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  • Auxiliary teaching device for drawing curve chart
  • Auxiliary teaching device for drawing curve chart
  • Auxiliary teaching device for drawing curve chart

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0019] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0020] refer to Figure ...

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Abstract

The invention discloses an auxiliary teaching device for drawing a curve chart. The auxiliary teaching device comprises a drawing board. A frame is fixedly connected to the front wall of the drawing board. A first cavity is formed in the lower end of the frame and internally provided with a first threaded rod, wherein the first threaded rod is horizontally arranged. The end of the first threaded rod is connected with the inner side wall of the first cavity in a rotary manner. A first moving block is connected to the first threaded rod in a threaded manner. A first sliding opening is formed inthe inner top wall of the first cavity. A first connecting rod is fixedly connected above the first moving block. The top end of the first connecting rod penetrates the first sliding opening, extendstoward the outside of the first cavity and is fixedly connected with a first laser lamp. According to the auxiliary teaching device, positions of the first laser lamp and the second laser lamp are adjusted according to coordinates of drawing points; intersection points of light rays transmitted by the first laser lamp and the second laser lamp are the points marked in the drawing process; the curve chart can be drawn on the drawing board quickly; and in addition, drawing is conducted precisely, and drawing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of teaching devices, in particular to an auxiliary teaching device for graph drawing. Background technique [0002] A curve graph, also known as a line graph, is a graph that uses the rise and fall of the curve to represent the development and change trend of the phenomenon under study. It plays an important role in analyzing and studying the development and changes of social and economic phenomena and their interdependence. [0003] In the classroom, teachers need to draw curves on the blackboard. The current process for teachers to draw curves is as follows: first draw a plane rectangular coordinate system on the blackboard, then draw multiple points according to the coordinates of the curve points, and then draw each The points are connected into a curve. [0004] The above-mentioned method of drawing curves by the teacher has the following defects: First, it is necessary to draw a plane Cartesian coord...

Claims

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Application Information

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IPC IPC(8): B43L5/00B43L11/00G09B19/00
CPCG09B19/00B43L5/00B43L11/00
Inventor 杨先平
Owner 杨先平
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