CN203093513U - 扇形画板 - Google Patents

扇形画板 Download PDF

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Publication number
CN203093513U
CN203093513U CN 201320072337 CN201320072337U CN203093513U CN 203093513 U CN203093513 U CN 203093513U CN 201320072337 CN201320072337 CN 201320072337 CN 201320072337 U CN201320072337 U CN 201320072337U CN 203093513 U CN203093513 U CN 203093513U
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China
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ruler
fan
drawing board
semi
center
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Expired - Fee Related
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CN 201320072337
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English (en)
Inventor
郝明学
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Individual
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Individual
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  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

一种扇形画板实用于教学作扇形图。教学画扇形绝大多数是随手画的，不规范起到了不好的效果。设计透明薄板成半圆环，圆周上刻度180，中间镂空，再配刻度尺子，尺子的一头在半圆环的圆心上，另一头以圆心为轴在圆环边可滑动滑动范围0度至180度，画扇形图以尺子边及尺子滑动画。

Description

扇形画板
技术领域
本实用新型实用于教学作扇形图。
背景技术
教学画扇形绝大多数是随手画的，不规范起到了不好的效果。
实用新型内容
为了教学科学规范的作扇形图，本实用新型提供一种扇形画板，该扇形画板能科学规范的作各种扇形图。设计透明薄板成半圆环，圆周上刻度180，中间镂空，再配刻度尺子，尺子的一头在半圆环的圆心上，另一头以圆心为轴在圆环边可滑动滑动范围0度至180度，画扇形图以尺子边及尺子滑动画，如图所示。本实用新型的有益效果是，科学规范作扇形图。
附图说明
图1为扇形画板的结构示意图：
其中1是刻度半圆环，2是刻度尺，3是轴，4是滑块。
具体实施方式
图1中，透明薄板做成刻度半圆环（1），刻度圆环（1）上装置刻度尺（2），滑块（4）装置刻度尺上，半圆环的圆心为轴（3）。画扇形图以尺子边及尺子滑动画。

Claims (1)

1.扇形画板，其特征在于：透明薄板成半圆环，圆周上刻度180，中间镂空，再配刻度尺子，尺子的一头在半圆环的圆心上，另一头以圆心为轴在圆环边可滑动滑动范围0度至180度。
CN 201320072337 2013-02-13 2013-02-13 扇形画板 Expired - Fee Related CN203093513U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320072337 CN203093513U (zh) 2013-02-13 2013-02-13 扇形画板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320072337 CN203093513U (zh) 2013-02-13 2013-02-13 扇形画板

Publications (1)

Publication Number Publication Date
CN203093513U true CN203093513U (zh) 2013-07-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320072337 Expired - Fee Related CN203093513U (zh) 2013-02-13 2013-02-13 扇形画板

Country Status (1)

Country Link
CN (1) CN203093513U (zh)

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130731

Termination date: 20140213