CN202703023U - 教学用单杆圆规 - Google Patents

教学用单杆圆规 Download PDF

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Publication number
CN202703023U
CN202703023U CN 201220352695 CN201220352695U CN202703023U CN 202703023 U CN202703023 U CN 202703023U CN 201220352695 CN201220352695 CN 201220352695 CN 201220352695 U CN201220352695 U CN 201220352695U CN 202703023 U CN202703023 U CN 202703023U
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compass
compasses
rod
rotating arm
handle
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CN 201220352695
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夏冰
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HARBIN FINANCE COLLEGE
Harbin Finance University
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HARBIN FINANCE COLLEGE
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Abstract

教学用单杆圆规。目前教学用具上广泛使用的制图圆规多半是老式的,由圆规体、圆规支脚、圆规笔夹和手柄组成,这种传统的圆规在实际画图时,圆规支脚上的铁针在光滑的板面上固定不牢,常常打滑、错位,使用起来既不准确、不方便、效果差、制作成本高。 本实用新型的组成包括:旋转臂( 1 ),绘图杆( 2 )与所述的旋转臂滑动连接,所述的绘图杆末端安装有一笔夹( 3 ),所述的旋转臂的另一端安装有转轴( 4 ),所述的转轴的两端分别连接把手( 5 )、吸盘( 6 ),手柄( 7 )固定连接在所述的旋转臂上。 本产品用教学制图。

Description

教学用单杆圆规
技术领域:
本实用新型涉及一种教学用单杆圆规。
背景技术:
目前教学用具上广泛使用的制图圆规多半是老式的,由圆规体、圆规支脚、圆规笔夹和手柄组成,这种传统的圆规在实际画图时,圆规支脚上的铁针在光滑的板面上固定不牢,常常打滑、错位,使用起来既不准确、不方便、效果差、制作成本高。
发明内容:
本实用新型的目的是提供一种教学用单杆圆规。
上述的目的通过以下的技术方案实现:
一种教学用单杆圆规,其组成包括:旋转臂,绘图杆与所述的旋转臂滑动连接,所述的绘图杆末端安装有一笔夹,所述的旋转臂的另一端安装有转轴,所述的转轴的两端分别连接把手、吸盘,手柄固定连接在所述的旋转臂上。
有益效果:
1. 本产品使用时,利用吸盘的真空吸力作用,能够有效地解决传统圆规支脚上的铁针在光滑的板面上固定不住、常常打滑的弊端,能够牢固地固定在板面上,使画出的圆或角度更加精准。
绘图杆的长度可以根据需要绘制的圆的直径进行调整,画出所需直径的圆。
.节约制作成本。
附图说明:
附图1是本产品的结构示意图。
附图2是附图1的仰视图。
附图3是附图1的右视图。
具体实施方式:
实施例1:
一种教学用单杆圆规,其组成包括:旋转臂1,绘图杆2与所述的旋转臂滑动连接,绘图杆的长度可以根据需要绘制的圆的直径进行调整,所述的绘图杆末端安装有一笔夹3,所述的旋转臂的另一端安装有转轴4,所述的转轴的两端分别连接把手5、吸盘6,手柄7固定连接在所述的旋转臂上。
使用方法:
使用时将吸盘固定在黑板上,根据圆的直径调整绘图杆的长度,一支手握住把手,使其圆心固定,另一只手抓紧手柄,旋转旋转臂,绘制出所需大小的圆。

Claims (1)

1.一种教学用单杆圆规,其组成包括:旋转臂,其特征是:绘图杆与所述的旋转臂滑动连接,所述的绘图杆末端安装有一笔夹,所述的旋转臂的另一端安装有转轴,所述的转轴的两端分别连接把手、吸盘,手柄固定连接在所述的旋转臂上。
CN 201220352695 2012-07-20 2012-07-20 教学用单杆圆规 Expired - Fee Related CN202703023U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220352695 CN202703023U (zh) 2012-07-20 2012-07-20 教学用单杆圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220352695 CN202703023U (zh) 2012-07-20 2012-07-20 教学用单杆圆规

Publications (1)

Publication Number Publication Date
CN202703023U true CN202703023U (zh) 2013-01-30

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CN 201220352695 Expired - Fee Related CN202703023U (zh) 2012-07-20 2012-07-20 教学用单杆圆规

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CN (1) CN202703023U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103072410A (zh) * 2013-02-04 2013-05-01 李香秀 一种手动式画大型圆圈装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103072410A (zh) * 2013-02-04 2013-05-01 李香秀 一种手动式画大型圆圈装置
CN103072410B (zh) * 2013-02-04 2015-09-09 慈溪市附海大奇电器厂 一种手动式画大型圆圈装置

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