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Bar chart drawing device for economics teaching

A bar chart and economic technology, applied in the direction of preventing slippage, printing, writing utensils, etc., can solve the problems of affecting teaching quality, reducing drawing efficiency, occupying a large space, etc., to improve drawing efficiency, improve Flexibility, Efficiency Improvement

Active Publication Date: 2022-05-27
JINCHENG COLLEGE NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In today's existing bar chart drawing device for economics teaching, for example, in the technical structure of the application document of CN201710569869.1, the application number includes a horizontal ruler and an auxiliary horizontal ruler, and the upper end of the front side of the horizontal ruler is provided with a horizontal ruler scale mark , the upper left end of the horizontal ruler is provided with a T-shaped through groove, the bottom of the T-shaped through groove is provided with a vertical ruler, and the width of the vertical ruler is smaller than the groove width of the T-shaped through groove, and the middle part of the front surface of the vertical ruler is provided with The slider bar, the vertical ruler and the slider bar are integrated and are slidably connected with the T-shaped through slot. Although the device plays an auxiliary role in drawing the bar graph, it is relatively integrated in structure, cannot be folded, and is inconvenient to carry. It takes up a lot of space, and the positioning between the horizontal ruler, vertical teeth, auxiliary horizontal ruler and auxiliary vertical ruler requires bolts to be screwed back and forth, which greatly reduces the efficiency of drawing and affects the quality of teaching

Method used

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  • Bar chart drawing device for economics teaching
  • Bar chart drawing device for economics teaching
  • Bar chart drawing device for economics teaching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, please refer to the attached Figure 1-8 As shown, a bar graph drawing device for economics teaching includes a foldable drawing assembly 1, and the foldable drawing assembly 1 includes a horizontal ruler body 11, a vertical ruler body 12, an auxiliary vertical ruler 13 and an auxiliary horizontal ruler 14. The horizontal ruler body 11 is provided with a first receiving groove 111 and a second receiving groove 112, as well as several hemispherical positioning grooves 113 linearly distributed at equal intervals on both sides of the inner wall of the first receiving groove 111. The lower end of the vertical ruler body 12 is provided with There is a first damping shaft 121, and both ends of the first damping shaft 121 are rotatably connected to the inner wall of the second receiving slot 112. The lower end of the auxiliary vertical ruler 13 is provided with a fixed-point limiting component 2, and the upper end of the inner cavity of the auxiliary vertical rule...

Embodiment 2

[0035] In the second embodiment, please refer to the attached figure 1 and 3 As shown, a magnetic strip 19 is embedded in the groove on the other side of the outer wall of the horizontal ruler body 11, and the horizontal ruler body 11 is adsorbed on the blackboard through the magnetic stripe 19, which is convenient for users to compare drawings. An elastic lanyard 4 is arranged at a top corner of the lower surface of the outer wall of the ruler body 11 , and the whole device can be hung up when not in use through the elastic lanyard 4 .

Embodiment 3

[0036] Embodiment 3, please refer to the attached Figure 5 and 6As shown, moving chute 131 is respectively provided on both sides of the inner wall of the auxiliary vertical ruler 13, and each of the moving chute 131 is slidably connected with the moving slider 32, and a plurality of the rectangular positioning holes 34 are linearly arranged at equal intervals. On the side wall of the auxiliary vertical ruler 13, through the mutual cooperation between the moving sliding block 32 and the moving chute 131, the auxiliary horizontal ruler 14 can slide up and down stably on the auxiliary vertical ruler 13, which is convenient for better alignment of the bar shape. The height of the figure is drawn and measured. The bottom of the outer wall of the moving groove block 21 is provided with a T-shaped pull handle 25, and is in a sliding connection with the first receiving groove 111. The block 21 is pulled to move linearly in the first receiving groove 111 , and the engaging force bet...

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Abstract

The invention discloses a bar chart drawing device for economics teaching, which comprises a folding drawing assembly, the folding drawing assembly comprises a transverse ruler body, a vertical ruler body, an auxiliary vertical ruler and an auxiliary transverse ruler, and the transverse ruler body is provided with a first storage groove and a second storage groove; a first damping shaft is arranged at the lower end of the vertical ruler body, the two ends of the first damping shaft are rotationally connected with the inner wall of the second storage groove, and a fixed point limiting assembly is arranged at the lower end of the auxiliary vertical ruler. By means of the multifunctional teaching ruler, folding can be achieved, carrying is convenient, the occupied space is reduced when the multifunctional teaching ruler is not used, placement is facilitated, bolts are not needed for locking the positions of the rulers, the drawing efficiency and the teaching quality are greatly improved, and the multifunctional teaching ruler is suitable for popularization and application. And the structure is stable, the weight is light, and practicability is high.

Description

technical field [0001] The invention mainly relates to the technical field of economics teaching equipment, in particular to a bar graph drawing device for economics teaching. Background technique [0002] Economics is a discipline that studies various economic activities and various corresponding economic relations and the laws of their operation and development in human society at various stages of development. The core idea of ​​economics is material scarcity and effective use of resources, which can be divided into two categories. Major branches, microeconomics and macroeconomics, in which the bar graph drawing device is one of the commonly used devices in economics teaching aids. [0003] In the existing bar graph drawing device for economics teaching, for example, the technical structure of the application copy with the application number of CN201710569869.1 includes a horizontal ruler and an auxiliary horizontal ruler, and the upper end of the front side of the horizo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L7/12B43L7/14B43L13/00B43L12/02
CPCB43L7/12B43L7/14B43L13/004B43L13/00B43L12/02
Inventor 蒋辉
Owner JINCHENG COLLEGE NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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