CN103538397A - 一种虹膜式画圆装置 - Google Patents

一种虹膜式画圆装置 Download PDF

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Publication number
CN103538397A
CN103538397A CN201310492042.7A CN201310492042A CN103538397A CN 103538397 A CN103538397 A CN 103538397A CN 201310492042 A CN201310492042 A CN 201310492042A CN 103538397 A CN103538397 A CN 103538397A
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ring
bracing frame
rotation
iris
support
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CN103538397B (zh
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仇政
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Suzhou Fengru Software Co., Ltd.
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仇政
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Abstract

本发明涉及一种虹膜式画圆装置，由上盖、旋转内环、支撑架、叶片和下盖组成；旋转内环嵌在支撑架内，所述的旋转内环上有滑槽和一处摩擦突起，叶片通过销孔分别与支撑架和旋转内环连接，所述的上盖有指示标记并覆盖在支撑架和旋转内环上，下盖将叶片固定在支撑架上。该发明可使人方便的画出小圆且安全无尖刺。

Description

一种虹膜式画圆装置
技术领域
本发明涉及一种虹膜式画圆装置，具体地说是应用了叶片、转环等方式组成的一种虹膜式画圆装置。 
背景技术
目前市面上的圆规在画小圆时，效果往往不尽如人意；圆规上带有尖刺，也存在着扎伤纸面和误伤他人的危险因素。因此需要一种既安全又可方便地画出小圆的装置。 
发明内容
针对上述不足，本发明提供了一种虹膜式画圆装置，该装置借助相机虹膜式光圈的灵感，可以方便的画出任意尺寸的近似小圆，并且安全无尖刺。 
本发明是通过以下技术方案实现的：一种虹膜式画圆装置，其结构由上盖、旋转内环、支撑架、叶片和下盖组成；旋转内环嵌在支撑架内，所述的旋转内环上有滑槽和一处摩擦突起，叶片通过销孔分别与支撑架和旋转内环连接，所述的上盖有指示标记并覆盖在支撑架和旋转内环上，下盖将叶片固定在支撑架上。 
该发明的有益之处是：借助相机虹膜式光圈的灵感，可以方便的画出任意尺寸的近似小圆，并且安全无尖刺。 
附图说明
图1为本发明的结构示意图； 
图2为本发明的使用状态图。 
图中，1、上盖，2、旋转内环，3、支撑架，4、叶片，5、下盖。 
具体实施方式
如图所示，一种虹膜式画圆装置，其结构是由上盖1、旋转内环2、支撑架3、叶片4和下盖5组成；旋转内环2嵌在支撑架3内，所述的旋转内环2上有滑槽和一处摩擦突起，叶片4通过销孔分别与支撑架3和旋转内环2连接，所述的上盖1有指示标记并覆盖在支撑架3和旋转内环2上，下盖5将叶片4固定在支撑架3上。 
该装置工作时，将上盖1上面的指针标记对准圆的中心线，然后推动旋转内环2上的摩擦突起即可使叶片4进行摆动，从而使中心圆孔扩大或缩小，从而画出小圆。 

Claims (1)

1.一种虹膜式画圆装置，其特征在于：由上盖、旋转内环、支撑架、叶片和下盖组成；旋转内环嵌在支撑架内，所述的旋转内环上有滑槽和一处摩擦突起，叶片通过销孔分别与支撑架和旋转内环连接，所述的上盖有指示标记并覆盖在支撑架和旋转内环上，下盖将叶片固定在支撑架上。
CN201310492042.7A 2013-10-18 2013-10-18 一种虹膜式画圆装置 Expired - Fee Related CN103538397B (zh)

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CN103538397A true CN103538397A (zh) 2014-01-29
CN103538397B CN103538397B (zh) 2015-04-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110036338A (zh) * 2016-12-09 2019-07-19 株式会社日东 光圈装置、透镜镜筒及摄影装置或投影装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129948A (en) * 1977-02-22 1978-12-19 Hatter Edward E Circle drawing and measuring device
CN2033751U (zh) * 1988-03-14 1989-03-08 龚金龙 盘式圆规
CN2122741U (zh) * 1992-04-22 1992-11-25 曹光全 一种多功能绘图工具规度尺
CN2157044Y (zh) * 1992-11-30 1994-02-23 祺翊实业有限公司 圆圈画板
US5987760A (en) * 1997-12-18 1999-11-23 Walter's Co., Ltd. Circle drawing tool
JP2001030685A (ja) * 1999-07-22 2001-02-06 Hirofumi Watanabe 円定規
CN2858318Y (zh) * 2005-12-08 2007-01-17 施美惠 量具装置
CN2873524Y (zh) * 2006-03-02 2007-02-28 张士苍 圆锥曲线规
US20100000102A1 (en) * 2008-07-03 2010-01-07 Contreras Amaury D Flat compass for marking large arcsand circles
KR20110124450A (ko) * 2010-05-11 2011-11-17 한국전기안전공사 회전 구체 작도장치 및 그 방법
CN102431362A (zh) * 2011-09-06 2012-05-02 董国奇 一笔画摆线快速画圆、弧、角、正多边形绘图仪
CN203580442U (zh) * 2013-10-18 2014-05-07 仇政 一种虹膜式画圆装置

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129948A (en) * 1977-02-22 1978-12-19 Hatter Edward E Circle drawing and measuring device
CN2033751U (zh) * 1988-03-14 1989-03-08 龚金龙 盘式圆规
CN2122741U (zh) * 1992-04-22 1992-11-25 曹光全 一种多功能绘图工具规度尺
CN2157044Y (zh) * 1992-11-30 1994-02-23 祺翊实业有限公司 圆圈画板
US5987760A (en) * 1997-12-18 1999-11-23 Walter's Co., Ltd. Circle drawing tool
JP2001030685A (ja) * 1999-07-22 2001-02-06 Hirofumi Watanabe 円定規
CN2858318Y (zh) * 2005-12-08 2007-01-17 施美惠 量具装置
CN2873524Y (zh) * 2006-03-02 2007-02-28 张士苍 圆锥曲线规
US20100000102A1 (en) * 2008-07-03 2010-01-07 Contreras Amaury D Flat compass for marking large arcsand circles
KR20110124450A (ko) * 2010-05-11 2011-11-17 한국전기안전공사 회전 구체 작도장치 및 그 방법
CN102431362A (zh) * 2011-09-06 2012-05-02 董国奇 一笔画摆线快速画圆、弧、角、正多边形绘图仪
CN203580442U (zh) * 2013-10-18 2014-05-07 仇政 一种虹膜式画圆装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110036338A (zh) * 2016-12-09 2019-07-19 株式会社日东 光圈装置、透镜镜筒及摄影装置或投影装置

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Address after: 250014 Shandong, Lixia District, Ji'nan Lixia Road, Shandong Jianzhu University, No. 96

Applicant after: Chou Zheng

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