CN203110683U - 一种可画同心圆的圆规 - Google Patents

一种可画同心圆的圆规 Download PDF

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Publication number
CN203110683U
CN203110683U CN 201220708528 CN201220708528U CN203110683U CN 203110683 U CN203110683 U CN 203110683U CN 201220708528 CN201220708528 CN 201220708528 CN 201220708528 U CN201220708528 U CN 201220708528U CN 203110683 U CN203110683 U CN 203110683U
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王华迪
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Abstract

一种可画同心圆的圆规,属于绘图工具,它包括固定规臂、转动规臂和连接轴,所述的固定规臂和转动规臂通过连接轴相连接,固定规臂下端安装钢针,转动规臂下端通过螺丝固定笔芯,所述的转动规臂外侧设有一个转轴,一辅助转动规臂通过转轴连接转动规臂。该可画同心圆的圆规设有一个固定规臂和两个转动规臂,可以一次性画出同心圆,画出的同心圆标准规范,操作简便,提高绘图效率。

Description

一种可画同心圆的圆规
技术领域
本实用新型涉及一种圆规,具体地说是一种可画同心圆的圆规。
背景技术
人们经常需要用圆规画同心圆,但传统的圆规一次只能画一个圆,画图效率较低。当我们画完一个圆再画第二个圆时,需要调整圆规,调整时经常将钢针移位,如果不能找准圆心,画出的同心圆会很不规范。
实用新型内容
本实用新型的目的在于提供一种可画同心圆的圆规,该圆规设有两个转动规臂,可一次性画出同心圆。
本实用新型解决其技术问题所采取的技术方案是:一种可画同心圆的圆规,包括固定规臂、转动规臂和连接轴,所述的固定规臂和转动规臂通过连接轴相连接,固定规臂下端安装钢针,转动规臂下端通过螺丝固定笔芯,其特征是,所述的转动规臂外侧设有一个转轴,一辅助转动规臂通过转轴连接转动规臂。
本实用新型的有益效果是:该可画同心圆的圆规设有一个固定规臂和两个转动规臂,可以一次性画出同心圆,画出的同心圆标准规范,操作简便,提高绘图效率。
附图说明
图1为本实用新型的结构示意图。
图中:1转动规臂,2固定规臂,3连接轴,4笔芯,5转轴,6螺丝,7钢针,8辅助转动规臂。
具体实施方式
如图1所示。一种可画同心圆的圆规,包括固定规臂2、转动规臂1和连接轴3,所述的固定规臂2和转动规臂1通过连接轴3相连接,固定规臂2下端安装钢针7,转动规臂1下端通过螺丝6固定笔芯4,所述的转动规臂1外侧设有一个转轴5,一辅助转动规臂6通过转轴5连接转动规臂1。
使用该可画同心圆的圆规画同心圆,先调整好转动规臂1和固定规臂2的距离,再调整好辅助转动规臂8与转动规臂1的距离,将钢针7固定在纸上,转动连接轴3上方的握把,即可画出同心圆来。

Claims (1)

1.一种可画同心圆的圆规,包括固定规臂、转动规臂和连接轴,所述的固定规臂和转动规臂通过连接轴相连接,固定规臂下端安装钢针,转动规臂下端通过螺丝固定笔芯,其特征是,所述的转动规臂外侧设有一个转轴,一辅助转动规臂通过转轴连接转动规臂。
CN 201220708528 2012-12-20 2012-12-20 一种可画同心圆的圆规 Expired - Fee Related CN203110683U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220708528 CN203110683U (zh) 2012-12-20 2012-12-20 一种可画同心圆的圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220708528 CN203110683U (zh) 2012-12-20 2012-12-20 一种可画同心圆的圆规

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CN203110683U true CN203110683U (zh) 2013-08-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102963180A (zh) * 2012-12-20 2013-03-13 王华迪 一种可画同心圆的圆规
CN104163063A (zh) * 2014-06-12 2014-11-26 安栋 一种同心定径圆规

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102963180A (zh) * 2012-12-20 2013-03-13 王华迪 一种可画同心圆的圆规
CN104163063A (zh) * 2014-06-12 2014-11-26 安栋 一种同心定径圆规

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Granted publication date: 20130807

Termination date: 20131220