CN201165141Y - 圆规 - Google Patents

圆规 Download PDF

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Publication number
CN201165141Y
CN201165141Y CNU2008200557941U CN200820055794U CN201165141Y CN 201165141 Y CN201165141 Y CN 201165141Y CN U2008200557941 U CNU2008200557941 U CN U2008200557941U CN 200820055794 U CN200820055794 U CN 200820055794U CN 201165141 Y CN201165141 Y CN 201165141Y
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China
Prior art keywords
compasses
draw point
supporting leg
utility
support leg
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Expired - Fee Related
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CNU2008200557941U
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English (en)
Inventor
顾盛俊
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.)
SHANGHAI SHANGYIN YANGPU SCHOOL
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SHANGHAI SHANGYIN YANGPU SCHOOL
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Priority to CNU2008200557941U priority Critical patent/CN201165141Y/zh
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Publication of CN201165141Y publication Critical patent/CN201165141Y/zh
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Abstract

本实用新型公开了一种圆规,包括两条支腿及旋转手柄,一条支腿端部固定画笔,另一条支腿端部固定钢针,其中,上述钢针露出支腿的尖端呈圆锥体,且锥顶的夹角大于等于90度,钢针位于支腿内部的部分呈柱形。本实用新型的圆规,相比传统圆规更为安全,且不影响使用效果。

Description

圆规
技术领域
本实用新型涉及文具,具体为圆规。
背景技术
作图时,常会使用到圆规,但是由于普通圆规一般是用钢针定圆心,而钢针一方面容易扎伤人,另一方面圆规掉落后,钢针也十分容易折断或者是弯曲变形。
实用新型内容
本实用新型的目的就是为了克服现有技术中的不足,提供一种新型圆规。
本实用新型采用了下述技术方案来解决上述技术问题:
一种圆规,包括两条支腿及旋转手柄,一条支腿端部固定画笔,另一条支腿端部固定钢针,其中,上述钢针露出支腿的尖端呈圆锥体,且锥顶的夹角大于等于90度,钢针位于支腿内部的部分呈柱形。
较佳的,上述固定钢针的支腿上设有控制钢针位置的调节器。调节器可控制钢针的圆锥体尖端伸出或缩入支腿。
本实用新型的圆规,相比传统圆规更为安全,且不影响使用效果。
附图说明
图1本实用新型圆规的示意图
图2本实用新型圆规中钢针结构示意图
具体实施方式
如图1所示圆规,包括两条支腿及旋转手柄3,一条支腿1端部固定画笔4,另一条支腿2端部固定钢针5,其中,上述钢针露出支腿的尖端6呈圆锥体,且锥顶的夹角大于等于90度,钢针位于支腿内部的部分呈圆柱形。固定钢针的支腿2上设有控制钢针位置的调节器7。调节器可控制钢针的圆锥体尖端伸出或缩入支腿。

Claims (2)

1.一种圆规,包括两条支腿及旋转手柄,一条支腿端部固定画笔,另一条支腿端部固定钢针,其特征在于,上述钢针露出支腿的尖端呈圆锥体,且锥顶的夹角大于等于90度,钢针位于支腿内部的部分呈柱形。
2.如权利要求1所述圆规,其特征在于,所述固定钢针的支腿上设有控制钢针位置的调节器。
CNU2008200557941U 2008-02-28 2008-02-28 圆规 Expired - Fee Related CN201165141Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200557941U CN201165141Y (zh) 2008-02-28 2008-02-28 圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200557941U CN201165141Y (zh) 2008-02-28 2008-02-28 圆规

Publications (1)

Publication Number Publication Date
CN201165141Y true CN201165141Y (zh) 2008-12-17

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ID=40190525

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200557941U Expired - Fee Related CN201165141Y (zh) 2008-02-28 2008-02-28 圆规

Country Status (1)

Country Link
CN (1) CN201165141Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105710854A (zh) * 2016-05-09 2016-06-29 赵夫超 一种防止针尖折断的划规

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105710854A (zh) * 2016-05-09 2016-06-29 赵夫超 一种防止针尖折断的划规

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Date Code Title Description
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: 20081217