CN202862932U - 圆规 - Google Patents

圆规 Download PDF

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Publication number
CN202862932U
CN202862932U CN 201220546842 CN201220546842U CN202862932U CN 202862932 U CN202862932 U CN 202862932U CN 201220546842 CN201220546842 CN 201220546842 CN 201220546842 U CN201220546842 U CN 201220546842U CN 202862932 U CN202862932 U CN 202862932U
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陈金虎
叶佳炜
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Abstract

本实用新型公开一种圆规,旨在提供一种结构简单,制造方便,绘图容易的圆规。它包括圆规头(1)、圆规腿(2)和脚针(3),所述脚针(3)与圆规腿(2)通过锁定装置(4)相连,脚针(3)与圆规腿(2)内侧可成0—180度角度固定下来。它的优点是当两圆规腿成大角度时,指针能够很好的固定,不易打滑。

Description

圆规
技术领域
本实用新型涉及一种学习用品,更确切的说是一种能够很好的把脚针固定下来的圆规。 
背景技术
目前,市场上销售各种各样的圆规,有可以把两圆规腿固定在一个角度的圆规、圆规头上有可以更换橡皮的圆规、带有刻度尺的圆规,这些圆规有一个共同的特点,就是脚针都是和圆规腿在同一直线上,这样当两圆规腿夹角比较大时,脚针不易固定下来,画图时脚针容易打滑。 
实用新型内容
本实用新型的目的是克服现有技术的不足,提供一种在两圆规腿成大角度下容易把脚针固定下来的圆规。 
本实用新型圆规,包括圆规头、圆规腿、脚针和锁定装置,所述脚针与圆规腿通过锁定装置相连,脚针与圆规腿内侧成0—180度角度固定下来。 
本实用新型有益效果是:(1)两圆规腿成大角度时,脚针容易固定下来;(2)与现有技术的复杂结构相比,这种圆规具有结构简单,成本较低。 
附图说明
图1是本实用新型两圆规腿成一般角度时结构图。 
图2是本实用新型两圆规腿成180度时结构图。 
图中:圆规头1、圆规腿2、脚针3、锁定装置4。 
具体实施方式
下面结合附图对本实用新型进一步的描述。 
在图1中,圆规包括圆规头1、圆规腿2、脚针3和锁定装置4。 
所述脚针3与圆规腿2通过锁定装置4相连,脚针3与圆规腿2内侧成0—180度角度固定下来。 
在使用圆规的过程中,当两圆规腿2角度比较大时,调整圆规腿2和脚针3的角度,并用锁定装置4固定下来,这样画图时脚针就不易滑动。 

Claims (1)

1.种圆规,包括圆规头(1)、圆规腿(2)、脚针(3)和锁定装置(4),其特征是,所述脚针(3)与圆规腿(2)通过锁定装置(4)相连,脚针(3)与圆规腿(2)内侧成0—180度角度固定下来。
CN 201220546842 2012-10-24 2012-10-24 圆规 Expired - Fee Related CN202862932U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220546842 CN202862932U (zh) 2012-10-24 2012-10-24 圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220546842 CN202862932U (zh) 2012-10-24 2012-10-24 圆规

Publications (1)

Publication Number Publication Date
CN202862932U true CN202862932U (zh) 2013-04-10

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CN 201220546842 Expired - Fee Related CN202862932U (zh) 2012-10-24 2012-10-24 圆规

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CN (1) CN202862932U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114407558A (zh) * 2022-03-07 2022-04-29 浙江国际海运职业技术学院 一种数学教学用绘图工具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114407558A (zh) * 2022-03-07 2022-04-29 浙江国际海运职业技术学院 一种数学教学用绘图工具

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130410

Termination date: 20131024