# CN202986540U - 一种数学课专用绘图工具 - Google Patents

## Info

Publication number
CN202986540U
CN202986540U CN 201220751556 CN201220751556U CN202986540U CN 202986540 U CN202986540 U CN 202986540U CN 201220751556 CN201220751556 CN 201220751556 CN 201220751556 U CN201220751556 U CN 201220751556U CN 202986540 U CN202986540 U CN 202986540U
Authority
CN
China
Prior art keywords
protractor
pair
divider calipers
ruler
locating hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220751556
Other languages
English (en)
Inventor

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qiqihar University
Original Assignee
Qiqihar University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Qiqihar University filed Critical Qiqihar University
Priority to CN 201220751556 priority Critical patent/CN202986540U/zh
Application granted granted Critical
Publication of CN202986540U publication Critical patent/CN202986540U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

## Landscapes

• Drawing Aids And Blackboards (AREA)

## Description

1、量角器 2、直尺 3、旋转轴 4、旋转画规 5、角度定位块
6、半径尺寸刻度 7、粉笔插孔 8、正方形顶点定位孔
9、正方五边形顶点定位孔 10、正六边形顶点定位孔。

## Claims (1)

1.一种数学课专用绘图工具，其特征在于：该绘图工具包括半环形的量角器(1)和连接在量角器(1)底端的一根直尺(2)；在直尺(2)的中心处装有旋转轴(3)，由一条尺板制成的旋转画规(4)底端装在旋转轴(3)上，顶端与量角器(1)的外周之间装有由弹性材料制成的角度定位块(5)；旋转画规(4)的尺面上标有半径尺寸刻度(6)，沿长度方向设有多个粉笔插孔(7)，在量角器(1)的半环形尺面上还分别设有正方形顶点定位孔(8)，正五边形顶点定位孔(9)和正六边形顶点定位孔(10)。
CN 201220751556 2012-12-18 2012-12-18 一种数学课专用绘图工具 Expired - Fee Related CN202986540U (zh)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220751556 CN202986540U (zh) 2012-12-18 2012-12-18 一种数学课专用绘图工具

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220751556 CN202986540U (zh) 2012-12-18 2012-12-18 一种数学课专用绘图工具

## Publications (1)

Publication Number Publication Date
CN202986540U true CN202986540U (zh) 2013-06-12

# Family

## Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220751556 Expired - Fee Related CN202986540U (zh) 2012-12-18 2012-12-18 一种数学课专用绘图工具

## Country Status (1)

CN (1) CN202986540U (zh)

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107053908A (zh) * 2017-03-10 2017-08-18 大连工业大学 画圆画方用尺

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107053908A (zh) * 2017-03-10 2017-08-18 大连工业大学 画圆画方用尺

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## Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20141218

EXPY Termination of patent right or utility model