CN203004792U - 双画针圆规 - Google Patents

双画针圆规 Download PDF

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Publication number
CN203004792U
CN203004792U CN 201220671075 CN201220671075U CN203004792U CN 203004792 U CN203004792 U CN 203004792U CN 201220671075 CN201220671075 CN 201220671075 CN 201220671075 U CN201220671075 U CN 201220671075U CN 203004792 U CN203004792 U CN 203004792U
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compasses
needle
pin
double
utility
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Expired - Fee Related
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CN 201220671075
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English (en)
Inventor
周秋实
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Zaoyang Experimental Middle School
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Zaoyang Experimental Middle School
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Abstract

本实用新型提供一种双画针圆规,所述圆规的中间有一个固定的定针,两侧分别为铅芯画针和中性笔芯画针。使用时,可一次性快捷的画出两个不同大小的圆形图,并可随需要选择使用铅芯或中性笔芯作图,结构科学,特别方便画图时使用。

Description

双画针圆规
技术领域
本实用新型涉及一种圆规,具体的说是一种双画针圆规。
背景技术
现在使用的圆规都是两个支腿,分别为定针和画针,使用时,通过定针固定中心,使用画针画出圆形图,这种传统的圆规一次只能作出一个圆形图,且只能选用一种铅芯使用。
发明内容
本实用新型提供一种双画针圆规,可一次画出两个圆形图,且可选择使用不同的笔画图。
本实用新型包括圆规的定针,所采用的技术方案在于:所述圆规的中间有一个固定的定针,两侧分别为铅芯画针和中性笔芯画针。
本实用新型的有益效果体现在:使用时,可一次性快捷的画出两个不同大小的圆形图,并可随需要选择使用铅芯或中性笔芯作图,结构科学,特别方便画图时使用。
附图说明
下面结合附图和实施例对本实用新型作进一步详述。
图1为本实用新型结构示意图。
具体实施方式
附图1所示:圆规的中间有一个固定的定针1,两侧分别为铅芯画针2和中性笔芯画针3。

Claims (1)

1.一种双画针圆规,包括圆规的定针(1),其特征在于:所述圆规的中间有一个固定的定针(1),两侧分别为铅芯画针(2)和中性笔芯画针(3)。
CN 201220671075 2012-12-08 2012-12-08 双画针圆规 Expired - Fee Related CN203004792U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220671075 CN203004792U (zh) 2012-12-08 2012-12-08 双画针圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220671075 CN203004792U (zh) 2012-12-08 2012-12-08 双画针圆规

Publications (1)

Publication Number Publication Date
CN203004792U true CN203004792U (zh) 2013-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220671075 Expired - Fee Related CN203004792U (zh) 2012-12-08 2012-12-08 双画针圆规

Country Status (1)

Country Link
CN (1) CN203004792U (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: 20130619

Termination date: 20131208