CN104369591A - 教学用圆规 - Google Patents

教学用圆规 Download PDF

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Publication number
CN104369591A
CN104369591A CN201310348611.0A CN201310348611A CN104369591A CN 104369591 A CN104369591 A CN 104369591A CN 201310348611 A CN201310348611 A CN 201310348611A CN 104369591 A CN104369591 A CN 104369591A
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China
Prior art keywords
compasses
teaching
chalk
gauge bar
sucker
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CN201310348611.0A
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English (en)
Inventor
林一鸣
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.)
Zaoyang No 1 Experimental Primary School
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Zaoyang No 1 Experimental Primary School
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 Zaoyang No 1 Experimental Primary School filed Critical Zaoyang No 1 Experimental Primary School
Priority to CN201310348611.0A priority Critical patent/CN104369591A/zh
Publication of CN104369591A publication Critical patent/CN104369591A/zh
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00Circular curve-drawing or like instruments
    • B43L9/02Compasses

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  • Drawing Aids And Blackboards (AREA)

Abstract

本发明提供一种教学用圆规,所装粉笔通过一个可调节的粉笔套旋装在规杆上,另一支规杆的下端通过万向球连接一个吸盘。使用时,可通过吸盘将圆规定位在黑板上使用,让教学使用圆规更灵活方便。

Description

教学用圆规
技术领域
本发明涉及一种教具,具体的说是一种教学用圆规。
背景技术
学校教学使用的圆规,一般为较大型的圆规,都是采用定位针定位在黑板上使用,由于黑板光滑,会经常滑移无法使用,如果定位用力过大,还会扎坏黑板。
发明内容
本发明的目的在于提供一种教学用圆规,可很方便的将圆规定位在黑板上使用。
本发明包括圆规的规杆,其中一支规杆下端装有粉笔,所采用的技术方案在于:所装粉笔通过一个可调节的粉笔套旋装在规杆上,另一支规杆的下端通过万向球连接一个吸盘。
本发明的有益效果在于:通过上述这样一种方案,可通过吸盘让圆规轻松方便的固定在黑板上使用,加之粉笔采用了可调节的粉笔套安装,可方便粉笔的更换和伸缩调节,解决了现在定位针方式在使用上带来诸多不便,使圆规教学使用时更方便。
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为本发明的结构示意图。
具体实施方式
图1所示:所装粉笔4通过一个可调节的粉笔套2旋装在规杆上,另一支规杆的下端通过万向球3连接一个吸盘1。

Claims (1)

1.一种教学用圆规,包括圆规的规杆,其中一支规杆下端装有粉笔(4),其特征在于:所装粉笔(4)通过一个可调节的粉笔套(2)旋装在规杆上,另一支规杆的下端通过万向球(3)连接一个吸盘(1)。
CN201310348611.0A 2013-08-12 2013-08-12 教学用圆规 Pending CN104369591A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310348611.0A CN104369591A (zh) 2013-08-12 2013-08-12 教学用圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310348611.0A CN104369591A (zh) 2013-08-12 2013-08-12 教学用圆规

Publications (1)

Publication Number Publication Date
CN104369591A true CN104369591A (zh) 2015-02-25

Family

ID=52548894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310348611.0A Pending CN104369591A (zh) 2013-08-12 2013-08-12 教学用圆规

Country Status (1)

Country Link
CN (1) CN104369591A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105730092A (zh) * 2016-01-25 2016-07-06 信阳农林学院 一种带吸盘的教学型圆规

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105730092A (zh) * 2016-01-25 2016-07-06 信阳农林学院 一种带吸盘的教学型圆规

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150225

WD01 Invention patent application deemed withdrawn after publication