CN201161507Y - 吸盘式教学圆规 - Google Patents

吸盘式教学圆规 Download PDF

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Publication number
CN201161507Y
CN201161507Y CNU200720088460XU CN200720088460U CN201161507Y CN 201161507 Y CN201161507 Y CN 201161507Y CN U200720088460X U CNU200720088460X U CN U200720088460XU CN 200720088460 U CN200720088460 U CN 200720088460U CN 201161507 Y CN201161507 Y CN 201161507Y
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China
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compasses
supporting leg
chalk
disc type
teaching
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Expired - Fee Related
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CNU200720088460XU
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English (en)
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唐苦尽
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Individual
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Individual
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Abstract

本实用新型提供一种吸盘式教学圆规,圆规定针支腿下端是吸盘,画圆支腿的下端旋接有可固定粉笔的粉笔套,本实用新型可在粉笔套中装入粉笔,将定针支腿下端的吸盘吸附在黑板上,即可画出各种直径的圆形。

Description

吸盘式教学圆规
技术领域
本实用新型涉及一种教学用具,具体的说是一种吸盘式教学圆规。
背景技术
现在教学使用的老式圆规,其定针很容易在黑板上打滑,而较新的圆规则存在使用不方便的缺陷。
发明内容
本实用新型提供一种吸盘式教学圆规,可以稳定的吸附在黑板上,轻松的画出圆形。
本实用新型包括吸盘、圆规和所连接的定针支腿及画圆支腿以及固定螺栓,所采用的技术方案是:在教学圆规通过固定螺栓所装的定针支腿下端安装一个吸盘,另一支画圆支腿的下端旋装一个可以固定粉笔的粉笔套。
本实用新型的有益效果是:通过吸盘吸附在黑板上使用粉笔画出圆形图,可使教学圆规非常稳定、方便。
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。
附图为本实用新型结构示意图。
具体实施方式
图中:在圆规1通过固定螺栓6所安装的定针支腿2的下端设吸盘3,另一画圆支腿4的下端旋接可以固定粉笔7的粉笔套5。

Claims (1)

1、一种吸盘式教学圆规,包括吸盘(3)、圆规(1)和所连接的定针支腿(2)及画圆支腿(4)以及固定螺栓(6),其特征在于:圆规(1)通过固定螺栓(6)所装的定针支腿(2)其下端是吸盘(3),另一画圆支腿(4)下端旋接有可以固定粉笔(7)的粉笔套(5)。
CNU200720088460XU 2007-11-20 2007-11-20 吸盘式教学圆规 Expired - Fee Related CN201161507Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU200720088460XU CN201161507Y (zh) 2007-11-20 2007-11-20 吸盘式教学圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200720088460XU CN201161507Y (zh) 2007-11-20 2007-11-20 吸盘式教学圆规

Publications (1)

Publication Number Publication Date
CN201161507Y true CN201161507Y (zh) 2008-12-10

Family

ID=40182448

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200720088460XU Expired - Fee Related CN201161507Y (zh) 2007-11-20 2007-11-20 吸盘式教学圆规

Country Status (1)

Country Link
CN (1) CN201161507Y (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: 20081210

Termination date: 20091221