# CN204414928U - 一种多功能数学教学用具 - Google Patents

## Info

Publication number
CN204414928U
CN204414928U CN201520024374.7U CN201520024374U CN204414928U CN 204414928 U CN204414928 U CN 204414928U CN 201520024374 U CN201520024374 U CN 201520024374U CN 204414928 U CN204414928 U CN 204414928U
Authority
CN
China
Prior art keywords
teaching aid
main scale
protractor
scale
secondary chi
Prior art date
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
Application number
CN201520024374.7U
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English (en)
Inventor

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dou Junfeng
Original Assignee

Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 鲁杨 filed Critical 鲁杨
Priority to CN201520024374.7U priority Critical patent/CN204414928U/zh
Application granted granted Critical
Publication of CN204414928U publication Critical patent/CN204414928U/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

## Landscapes

• Length-Measuring Instruments Using Mechanical Means (AREA)

## Claims (6)

1.一种多功能数学教学用具，包括主尺、量角器和副尺，所述主尺固定设有主尺刻度，其特征在于：所述量角器通过销钉固定安装在主尺偏中心线位置，即靠近主尺左端或者右端位置，所述量角器与主尺相接处中心位置通过销钉安装有副尺，所述量角器边缘刻有量角器刻度，所述主尺安装量角器的一端端部通过销钉安装有旋转腿，所述销钉安装处均为旋转安装。
2.根据权利要求1所述的一种多功能数学教学用具，其特征在于：所述副尺延伸至量角器边缘，所述副尺设置有中心刻度线，所述中心线刻度线穿过量角器中心位置，所述中心刻度线能与量角器刻度重合，判断所画角度的大小，所述副尺固定设有副尺刻度。
3.根据权利要求1所述的一种多功能数学教学用具，其特征在于：所述主尺另一端部固定设有固定圆心的定心针，在定心针末端为吸盘，所述定心针和吸盘连接处为活动安装。
4.根据权利要求1所述的一种多功能数学教学用具，其特征在于：所述旋转腿的另一端安装有加笔套，所述加笔套还设置有用于预紧粉笔的预紧旋钮。
5.根据权利要求1所述的一种多功能数学教学用具，其特征在于：所述旋转腿底部表面安装有用于吸引黑板的磁层。
6.根据权利要求1所述的一种多功能数学教学用具，其特征在于：所述多功能数学教学用具能用透明材料制成，或木质材料制成。
CN201520024374.7U 2015-01-14 2015-01-14 一种多功能数学教学用具 Expired - Fee Related CN204414928U (zh)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520024374.7U CN204414928U (zh) 2015-01-14 2015-01-14 一种多功能数学教学用具

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520024374.7U CN204414928U (zh) 2015-01-14 2015-01-14 一种多功能数学教学用具

## Publications (1)

Publication Number Publication Date
CN204414928U true CN204414928U (zh) 2015-06-24

# Family

## Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520024374.7U Expired - Fee Related CN204414928U (zh) 2015-01-14 2015-01-14 一种多功能数学教学用具

## Country Status (1)

CN (1) CN204414928U (zh)

## Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104608529A (zh) * 2015-01-14 2015-05-13 鲁杨 一种多功能数学教学用具
CN105538969A (zh) * 2016-02-03 2016-05-04 上海市第一中学 一种带圆规和量角器的刻度尺
CN107953702A (zh) * 2017-11-19 2018-04-24 梁朝光 四合一学习文具
CN113417630A (zh) * 2021-08-02 2021-09-21 贵州大学 一种炮孔角度快速测验装置

## Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104608529A (zh) * 2015-01-14 2015-05-13 鲁杨 一种多功能数学教学用具
CN105538969A (zh) * 2016-02-03 2016-05-04 上海市第一中学 一种带圆规和量角器的刻度尺
CN107953702A (zh) * 2017-11-19 2018-04-24 梁朝光 四合一学习文具
CN113417630A (zh) * 2021-08-02 2021-09-21 贵州大学 一种炮孔角度快速测验装置
CN113417630B (zh) * 2021-08-02 2022-09-16 贵州大学 一种炮孔角度快速测验装置

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## Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Dou Junfeng

Inventor before: Lu Yang

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170629

Address after: 734100 Gansu city of Zhangye province Shandan County second middle school

Patentee after: Dou Junfeng

Address before: 233300 Anhui city of Bengbu province Wuhe County Chengguan Town Road defense Agricultural Bureau Dormitory Building 2 unit 204 room

Patentee before: Lu Yang

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

Granted publication date: 20150624

Termination date: 20180114