# CN202345177U - 数学教学用可调式圆规 - Google Patents

## Info

Publication number
CN202345177U
CN202345177U CN2011205260134U CN201120526013U CN202345177U CN 202345177 U CN202345177 U CN 202345177U CN 2011205260134 U CN2011205260134 U CN 2011205260134U CN 201120526013 U CN201120526013 U CN 201120526013U CN 202345177 U CN202345177 U CN 202345177U
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CN
China
Prior art keywords
chalk
swingle
teaching
hole
support bar
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN2011205260134U
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English (en)
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Individual
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Individual
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Priority to CN2011205260134U priority Critical patent/CN202345177U/zh
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Publication of CN202345177U publication Critical patent/CN202345177U/zh
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Expired - Fee Related legal-status Critical Current

## Landscapes

• Drawing Aids And Blackboards (AREA)

## Claims (3)

1.数学教学用可调式圆规，其特征在于：包括用于与黑板固定的吸盘（1），所述吸盘（1）上固定设有支撑杆（2），所述支撑杆（2）上转动设有具有刻度标记的旋转杆（3），所述旋转杆（3）上设有用于放置粉笔的粉笔孔（4），所述旋转杆（3）上还设有用于固定粉笔孔（4）内的粉笔的紧固螺钉（5）。
2.根据权利要求1所述的数学教学用可调式圆规，其特征在于：所述旋转杆（3）上设有套设在支撑杆（2）上的旋转孔（6）。
3.根据权利要求1所述的数学教学用可调式圆规，其特征在于：所述旋转杆（3）为伸缩式结构。
CN2011205260134U 2011-12-15 2011-12-15 数学教学用可调式圆规 Expired - Fee Related CN202345177U (zh)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205260134U CN202345177U (zh) 2011-12-15 2011-12-15 数学教学用可调式圆规

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205260134U CN202345177U (zh) 2011-12-15 2011-12-15 数学教学用可调式圆规

## Publications (1)

Publication Number Publication Date
CN202345177U true CN202345177U (zh) 2012-07-25

# Family

## Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205260134U Expired - Fee Related CN202345177U (zh) 2011-12-15 2011-12-15 数学教学用可调式圆规

## Country Status (1)

CN (1) CN202345177U (zh)

## Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107097569A (zh) * 2017-06-20 2017-08-29 屈雷涛 一种教学画圆和椭圆用具
CN108656801A (zh) * 2018-05-08 2018-10-16 吴烁 一种应用于教育教学的数学教学用辅助教学装置

## Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107097569A (zh) * 2017-06-20 2017-08-29 屈雷涛 一种教学画圆和椭圆用具
CN108656801A (zh) * 2018-05-08 2018-10-16 吴烁 一种应用于教育教学的数学教学用辅助教学装置

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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: 20120725

Termination date: 20121215