CN108312748A - 一种多功能高数学习教具 - Google Patents
一种多功能高数学习教具 Download PDFInfo
- Publication number
- CN108312748A CN108312748A CN201810202000.8A CN201810202000A CN108312748A CN 108312748 A CN108312748 A CN 108312748A CN 201810202000 A CN201810202000 A CN 201810202000A CN 108312748 A CN108312748 A CN 108312748A
- Authority
- CN
- China
- Prior art keywords
- gear
- slide fastener
- pull head
- teaching aid
- mathematics teaching
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/05—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with gears
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810202000.8A CN108312748B (zh) | 2018-03-12 | 2018-03-12 | 一种多功能高数学习教具 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810202000.8A CN108312748B (zh) | 2018-03-12 | 2018-03-12 | 一种多功能高数学习教具 |
Publications (2)
Publication Number | Publication Date |
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CN108312748A true CN108312748A (zh) | 2018-07-24 |
CN108312748B CN108312748B (zh) | 2019-06-04 |
Family
ID=62900772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810202000.8A Active CN108312748B (zh) | 2018-03-12 | 2018-03-12 | 一种多功能高数学习教具 |
Country Status (1)
Country | Link |
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CN (1) | CN108312748B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110435338A (zh) * | 2019-09-16 | 2019-11-12 | 湖州师范学院 | 一种双曲线绘具及其制作方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2145709Y (zh) * | 1992-08-04 | 1993-11-10 | 寇世银 | 组合式圆锥曲线教学规 |
CN2191103Y (zh) * | 1993-08-17 | 1995-03-08 | 彭志刚 | 圆锥曲线绘制仪 |
US6769156B1 (en) * | 2003-04-29 | 2004-08-03 | Tan Ming Chen | Zipper hand with puller fixed function |
CN2689756Y (zh) * | 2004-04-05 | 2005-04-06 | 佛山市南海鸿新元拉链有限公司 | 能自动锁紧的拉链头 |
CN102034382A (zh) * | 2009-09-28 | 2011-04-27 | 郝亮 | 双曲线图解仪 |
CN202123849U (zh) * | 2011-06-16 | 2012-01-25 | 万龙兰 | 教学用多功能圆锥曲线绘图器 |
CN204812418U (zh) * | 2015-07-17 | 2015-12-02 | 晋江市金圣拉链科技有限公司 | 一种可防止拉片晃动的拉头 |
CN204820804U (zh) * | 2015-07-02 | 2015-12-02 | 庞歆瑶 | 一种多功能教具 |
CN107467809A (zh) * | 2017-07-31 | 2017-12-15 | 佛山市南海旺鸿兴拉链配件有限公司 | 一种全方位旋转拉头 |
-
2018
- 2018-03-12 CN CN201810202000.8A patent/CN108312748B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2145709Y (zh) * | 1992-08-04 | 1993-11-10 | 寇世银 | 组合式圆锥曲线教学规 |
CN2191103Y (zh) * | 1993-08-17 | 1995-03-08 | 彭志刚 | 圆锥曲线绘制仪 |
US6769156B1 (en) * | 2003-04-29 | 2004-08-03 | Tan Ming Chen | Zipper hand with puller fixed function |
CN2689756Y (zh) * | 2004-04-05 | 2005-04-06 | 佛山市南海鸿新元拉链有限公司 | 能自动锁紧的拉链头 |
CN102034382A (zh) * | 2009-09-28 | 2011-04-27 | 郝亮 | 双曲线图解仪 |
CN202123849U (zh) * | 2011-06-16 | 2012-01-25 | 万龙兰 | 教学用多功能圆锥曲线绘图器 |
CN204820804U (zh) * | 2015-07-02 | 2015-12-02 | 庞歆瑶 | 一种多功能教具 |
CN204812418U (zh) * | 2015-07-17 | 2015-12-02 | 晋江市金圣拉链科技有限公司 | 一种可防止拉片晃动的拉头 |
CN107467809A (zh) * | 2017-07-31 | 2017-12-15 | 佛山市南海旺鸿兴拉链配件有限公司 | 一种全方位旋转拉头 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110435338A (zh) * | 2019-09-16 | 2019-11-12 | 湖州师范学院 | 一种双曲线绘具及其制作方法 |
Also Published As
Publication number | Publication date |
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CN108312748B (zh) | 2019-06-04 |
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EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180724 Assignee: Wenzhou Tongxin Toys Co.,Ltd. Assignor: ZHEJIANG INDUSTRY & TRADE VACATIONAL College Contract record no.: X2023330000042 Denomination of invention: A multifunctional teaching aid for advanced mathematics learning Granted publication date: 20190604 License type: Common License Record date: 20230217 |
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EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180724 Assignee: ZHEJIANG FEIYOU KANGTI EQUIPMENT Co.,Ltd. Assignor: ZHEJIANG INDUSTRY & TRADE VACATIONAL College Contract record no.: X2023330000085 Denomination of invention: A multifunctional teaching aid for advanced mathematics learning Granted publication date: 20190604 License type: Common License Record date: 20230310 |
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