CN202293913U - 数学教具 - Google Patents

数学教具 Download PDF

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Publication number
CN202293913U
CN202293913U CN2011204137537U CN201120413753U CN202293913U CN 202293913 U CN202293913 U CN 202293913U CN 2011204137537 U CN2011204137537 U CN 2011204137537U CN 201120413753 U CN201120413753 U CN 201120413753U CN 202293913 U CN202293913 U CN 202293913U
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teaching aid
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杨胜梅
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Abstract

本实用新型属教学用具,具体涉及一种数学教具。由三角尺和圆规组成,其特征是在三角尺的腰部设有与底边平行的手柄;所述的圆规由定杆和转杆组成,定杆固定在三角尺上,在定杆的上端设销轴与转杆上端铰接。具有结构简单,兼具三角尺和圆规的作图功能和携带方便的优点。

Description

数学教具
技术领域:本实用新型属教学用具,具体涉及一种数学教具。
背景技术:数学教师讲解几何知识过程中,需要在黑板上作出较标准的图形进行演示,来加深学生对几何知识的直观了解,三角尺和圆规为最常用制图工具,现在的教具中,三角尺和圆规均为单独使用的,携带不方便。
发明内容:本实用新型的目的是提供一种将三角尺和圆规的作图功能集合为一体的数学教具。
本实用新型的技术方案是:一种数学教具,由三角尺和圆规组成,其特征是在三角尺的腰部设有与底边平行的手柄;所述的圆规由定杆和转杆组成,定杆固定在三角尺上,在定杆的上端设销轴与转杆上端铰接。
所述的定杆下端位于三角尺的底边下侧,所述转杆的下端设笔筒。
由于采用上述技术方案,将三角尺和圆规结合为一体,圆规的转杆合拢到定杆上时,可做为三角尺单独合用,打开转杆可作为圆规使用,因而具有结构简单,兼具三角尺和圆规的作图功能和携带方便的优点。
附图说明:以下结合附图和具体实施例来对本实用新型的技术方案做详细说明。附图是本实用新型的结构示意图。
具体实施方式:参考附图,一种数学教具,由三角尺和圆规组成,在三角尺1的腰部设有与底边平行的手柄2;所述的圆规由定杆4和转杆5组成,定杆4固定在三角尺1上,在定杆4的上端设销轴3与转杆5上端铰接;所述的定杆4下端位于三角尺的底边下侧,所述转杆5的下端设笔筒6。

Claims (2)

1.一种数学教具,由三角尺和圆规组成,其特征是在三角尺(1)的腰部设有与底边平行的手柄(2);所述的圆规由定杆(4)和转杆(5)组成,定杆(4)固定在三角尺(1)上,在定杆(4)的上端设销轴(3)与转杆(5)上端铰接。
2.按权利要求1所述的一种数学教具,其特征是:所述的定杆(4)下端位于三角尺的底边下侧,所述转杆(5)的下端设笔筒(6)。
CN2011204137537U 2011-10-20 2011-10-20 数学教具 Expired - Fee Related CN202293913U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204137537U CN202293913U (zh) 2011-10-20 2011-10-20 数学教具

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CN2011204137537U CN202293913U (zh) 2011-10-20 2011-10-20 数学教具

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CN202293913U true CN202293913U (zh) 2012-07-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106864121A (zh) * 2017-03-15 2017-06-20 李路平 一种数学教学教具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106864121A (zh) * 2017-03-15 2017-06-20 李路平 一种数学教学教具

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Granted publication date: 20120704

Termination date: 20121020