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CN201211795Y - 吸盘圆规 - Google Patents

吸盘圆规 Download PDF

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Publication number
CN201211795Y
CN201211795Y CNU2008200128113U CN200820012811U CN201211795Y CN 201211795 Y CN201211795 Y CN 201211795Y CN U2008200128113 U CNU2008200128113 U CN U2008200128113U CN 200820012811 U CN200820012811 U CN 200820012811U CN 201211795 Y CN201211795 Y CN 201211795Y
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ruler
sucker
sucking disc
circle
supporting leg
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Expired - Fee Related
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CNU2008200128113U
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English (en)
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韩雨桐
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Individual
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Abstract

本实用新型涉及一种吸盘圆规,包括固定支腿、吸盘、直尺和粉笔套构成,吸盘的上口颈位置插入在固定支腿的下端,固定支腿的上端固接在直尺上,直尺上套接有粉笔套。本实用新型具有结构简单、使用方便,可有效地帮助教师在黑板上画圆和其他圆形图形。

Description

吸盘圆规
技术领域  本实用新型涉及一种教学用具,尤其是一种吸盘圆规。
背景技术  现有的圆规两个支撑腿,其中一个支撑腿的端部安装画笔,另一个支撑腿的端部是一个尖状钢针,主要用来画圆,这种圆规在纸面上画圆较好,但如果在教学中在黑板上画圆就不好用,其原因是支撑腿上的尖状钢针容易在黑板上打滑,圆心不好确定。
发明内容  本实用新型的目的是提供一种在黑板上画圆不打滑,容易确定圆心的吸盘圆规。
为达到上述目的,本实用新型吸盘圆规,包括固定支腿、吸盘、直尺和粉笔套构成,吸盘的上口颈位置插入在固定支腿的下端,固定支腿的上端固接在直尺上,直尺上套接有粉笔套。
采用上述结构后,该教学圆规可以利用吸盘固定在黑板上轻松确定圆心,方便人们画圆。
本实用新型的优点是:结构简单、使用方便,可有效地帮助教师在黑板上画圆和其他圆形图形。
附图说明  图1为本实用新型吸盘圆规整体结构示意图。
具体实施方式  如图1示,本实用新型吸盘圆规,包括固定支腿1、吸盘2、直尺3和粉笔套4构成,吸盘2的上口颈位置插入在固定支腿1的下端,固定支腿1的上端固接在直尺3上,直尺3上套接有粉笔套4。该教学圆规可以利用吸盘固定在黑板上轻松确定圆心,方便人们画圆。

Claims (1)

1、一种吸盘圆规,包括固定支腿(1)、吸盘(2)、直尺(3)和粉笔套(4)构成,其特征是:吸盘(2)的上口颈位置插入在固定支腿(1)的下端,固定支腿(1)的上端固接在直尺(3)上,直尺(3)上套接有粉笔套(4)。
CNU2008200128113U 2008-05-20 2008-05-20 吸盘圆规 Expired - Fee Related CN201211795Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200128113U CN201211795Y (zh) 2008-05-20 2008-05-20 吸盘圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200128113U CN201211795Y (zh) 2008-05-20 2008-05-20 吸盘圆规

Publications (1)

Publication Number Publication Date
CN201211795Y true CN201211795Y (zh) 2009-03-25

Family

ID=40495955

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200128113U Expired - Fee Related CN201211795Y (zh) 2008-05-20 2008-05-20 吸盘圆规

Country Status (1)

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CN (1) CN201211795Y (zh)

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GR01 Patent grant
C17 Cessation of patent right
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Granted publication date: 20090325