# CN203157502U - 大学数学教学用吸盘式圆规 - Google Patents

## Info

Publication number
CN203157502U
CN203157502U CN 201320144174 CN201320144174U CN203157502U CN 203157502 U CN203157502 U CN 203157502U CN 201320144174 CN201320144174 CN 201320144174 CN 201320144174 U CN201320144174 U CN 201320144174U CN 203157502 U CN203157502 U CN 203157502U
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China
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sucker
scale
hole
chalk sleeve
boss
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Expired - Fee Related
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CN 201320144174
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Individual
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Individual
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## Claims (2)

1.大学数学教学用吸盘式圆规，它包括吸盘（1）和条形标尺（2），其特征在于标尺（2）的一端活动连接有吸盘（1），标尺（2）的长边一侧设有刻度线（3），沿标尺（2）的长边上开设滑孔（4），在滑孔（4）的两侧与每条刻度线（3）对应处设有盲孔（6），标尺（2）上设有透明材质的滑块（10），滑块（10）与一条刻度线（3）对应的盲孔（6）相应位置上设有螺纹孔，螺纹孔装有顶丝（5），滑块（10）与滑孔（4）相对应处设有通孔，粉笔套（8）上端穿过滑块（10）的通孔顶部通过螺母（11）及设在粉笔套（8）的中部凸台（12）固定在滑块上，凸台（14）侧壁上设有螺纹，粉笔套（8）与夹紧件（9）通过凸台（14）上的螺纹连接在一起，夹紧件（9）上部设有一个以上的凸起（14）配合螺母将粉笔套（8）固定在标尺（2）上，粉笔套（8）的下端设有装粉笔的空腔。
2.根据权利要求1所述的大学数学教学用吸盘式圆规，其特征在于标尺（2）远离吸盘端设有手柄（7）。
CN 201320144174 2013-03-27 2013-03-27 大学数学教学用吸盘式圆规 Expired - Fee Related CN203157502U (zh)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320144174 CN203157502U (zh) 2013-03-27 2013-03-27 大学数学教学用吸盘式圆规

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320144174 CN203157502U (zh) 2013-03-27 2013-03-27 大学数学教学用吸盘式圆规

## Publications (1)

Publication Number Publication Date
CN203157502U true CN203157502U (zh) 2013-08-28

# Family

## Family Applications (1)

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CN 201320144174 Expired - Fee Related CN203157502U (zh) 2013-03-27 2013-03-27 大学数学教学用吸盘式圆规

## Country Status (1)

CN (1) CN203157502U (zh)

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105856920A (zh) * 2016-05-23 2016-08-17 湖南城市学院 一种数学用作图器

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105856920A (zh) * 2016-05-23 2016-08-17 湖南城市学院 一种数学用作图器

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## Legal Events

Date Code Title Description
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: 20130828

Termination date: 20140327