CN105667140A - 设置微调杆的圆规 - Google Patents

设置微调杆的圆规 Download PDF

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Publication number
CN105667140A
CN105667140A CN201410661231.7A CN201410661231A CN105667140A CN 105667140 A CN105667140 A CN 105667140A CN 201410661231 A CN201410661231 A CN 201410661231A CN 105667140 A CN105667140 A CN 105667140A
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China
Prior art keywords
compasses
fine adjustment
adjustment rod
threaded
fine setting
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Pending
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CN201410661231.7A
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English (en)
Inventor
王俊豪
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.)
Xiangyang No 42 Middle School
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Xiangyang No 42 Middle School
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Filing date
Publication date
Application filed by Xiangyang No 42 Middle School filed Critical Xiangyang No 42 Middle School
Priority to CN201410661231.7A priority Critical patent/CN105667140A/zh
Publication of CN105667140A publication Critical patent/CN105667140A/zh
Pending legal-status Critical Current

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Abstract

本发明提供一种设置微调杆的圆规,所述圆规在两个规杆之间设有一个正反丝的微调杆,在微调杆中间固定有旋柄。使用时,旋转旋柄即可通过正反丝的微调杆驱动两个支腿分开或收拢,由此可调整圆规的使用角度,由于采用丝杆的螺旋方式进行调整,可起到微调和定位的极好效果。

Description

设置微调杆的圆规
技术领域
本发明涉及一种圆规,具体的说是一种设置微调杆的圆规。
背景技术
现在使用的圆规画圆形时,两个支腿的角度是通过手动直接分开或合拢而调整的,调整后的角度由于处于自我约束状态,很难保证使用时的精确度。
发明内容
本发明提供一种设置微调杆的圆规,可起到细微调整和确保调整后能定位的作用。
本发明包括圆规的两个规杆,所采用的技术方案在于:所述圆规在两个规杆之间设有一个正反丝的微调杆,在微调杆中间固定有旋柄。
本发明的有益效果体现在:使用时,旋转旋柄即可通过正反丝的微调杆驱动两个支腿分开或收拢,由此可调整圆规的使用角度,由于采用丝杆的螺旋方式进行调整,可起到微调和定位的极好效果。
附图说明
下面结合附图和实施例对本发明作进一步详述。
图1为本发明结构示意图。
具体实施方式
图1所示:圆规在两个规杆1之间设有一个正反丝的微调杆2,在微调杆2中间固定有旋柄3。

Claims (1)

1.一种设置微调杆的圆规,包括圆规的两个规杆(1),其特征在于:所述圆规在两个规杆(1)之间设有一个正反丝的微调杆(2),在微调杆(2)中间固定有旋柄(3)。
CN201410661231.7A 2014-11-19 2014-11-19 设置微调杆的圆规 Pending CN105667140A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410661231.7A CN105667140A (zh) 2014-11-19 2014-11-19 设置微调杆的圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410661231.7A CN105667140A (zh) 2014-11-19 2014-11-19 设置微调杆的圆规

Publications (1)

Publication Number Publication Date
CN105667140A true CN105667140A (zh) 2016-06-15

Family

ID=56944906

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410661231.7A Pending CN105667140A (zh) 2014-11-19 2014-11-19 设置微调杆的圆规

Country Status (1)

Country Link
CN (1) CN105667140A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107839386A (zh) * 2017-11-13 2018-03-27 许昌市建安区第高级中学 一种限位圆规

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107839386A (zh) * 2017-11-13 2018-03-27 许昌市建安区第高级中学 一种限位圆规

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160615

WD01 Invention patent application deemed withdrawn after publication