# CN204687659U - 高等数学教学用多功能教具 - Google Patents

## Info

Publication number
CN204687659U
CN204687659U CN201520404541.0U CN201520404541U CN204687659U CN 204687659 U CN204687659 U CN 204687659U CN 201520404541 U CN201520404541 U CN 201520404541U CN 204687659 U CN204687659 U CN 204687659U
Authority
CN
China
Prior art keywords
ruler
breach
plectane
slide block
side disk
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
CN201520404541.0U
Other languages
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201520404541.0U priority Critical patent/CN204687659U/zh
Application granted granted Critical
Publication of CN204687659U publication Critical patent/CN204687659U/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

## Landscapes

• Drawing Aids And Blackboards (AREA)
• Length-Measuring Instruments Using Mechanical Means (AREA)

## Claims (2)

1.一种高等数学教学用多功能教具，其特征在于它包含一根直尺(1)，直尺(1)的前端为六十到九十度的尖角；在直尺(1)的后端设置有一个圆板(2)，圆板(2)的直径大于直尺(1)的宽度，在圆板(2)的表面边缘处设置有刻度(2-1)，在圆板(2)的中心处设置有圆心孔(2-2)；在直尺(1)的上下两侧分别设置有一块垂直于直尺(1)的立板(3)；在直尺(1)的中心位置设置有一条纵向的缺口(4)，在缺口(4)处设置有一个滑块(5)，滑块(5)由前侧圆片(5-1)和后侧圆片(5-2)之间通过中心轴(5-3)连接构成，前侧圆片(5-1)和后侧圆片(5-2)的直径大于缺口(4)的宽度，中心轴(5-3)的直径与缺口(4)的宽度吻合，在缺口(4)内的上下两侧表面上均设置有纵向的凹槽(4-1)，滑块(5)的后侧圆片(5-2)设置在凹槽(4-1)内，滑块(5)的前侧圆片(5-1)设置在直尺(1)的前侧，在滑块(5)的中心处设置有一个插笔孔(5-4)，在直尺(1)的表面沿缺口(4)的两侧设置有多条与缺口(4)垂直的定位槽(1-1)，定位槽(1-1)的横截面为圆弧形，在滑块(5)的前侧圆片(5-1)与直尺(1)接触表面的直径上设置有两个弹簧顶珠(5-5)，弹簧顶珠(5-5)的直径与定位槽(1-1)的直径吻合。
2.如权利要求1所述一种高等数学教学用多功能教具，其特征在于，立板(3)距离圆板(2)十至十五厘米。
CN201520404541.0U 2015-06-12 2015-06-12 高等数学教学用多功能教具 Expired - Fee Related CN204687659U (zh)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520404541.0U CN204687659U (zh) 2015-06-12 2015-06-12 高等数学教学用多功能教具

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520404541.0U CN204687659U (zh) 2015-06-12 2015-06-12 高等数学教学用多功能教具

## Publications (1)

Publication Number Publication Date
CN204687659U true CN204687659U (zh) 2015-10-07

# Family

## Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520404541.0U Expired - Fee Related CN204687659U (zh) 2015-06-12 2015-06-12 高等数学教学用多功能教具

## Country Status (1)

CN (1) CN204687659U (zh)

## Similar Documents

Publication Publication Date Title
CN203713333U (zh) 一种多功能数学教学用具
CN205395550U (zh) 多功能直尺
CN203611603U (zh) 数学绘图测量多用尺
CN204687659U (zh) 高等数学教学用多功能教具
CN205439708U (zh) 一种教学用尺
CN204354676U (zh) 一种教学用规尺
US9897427B2 (en) Educational ruler
CN203236913U (zh) 数学教学用尺
CN203185935U (zh) 一种兼具画圆功能的直尺
CN203580444U (zh) 多功能制图工具
CN205033805U (zh) 一种数学作图用尺子
CN201036953Y (zh) 一种便于在黑板上使用的磁性多功能三角板
CN203110681U (zh) 一种小学数学教学尺
CN201376426Y (zh) 单臂圆规
CN204160956U (zh) 一种多功能三角板
CN204210208U (zh) 一种数学作图用具
CN203681085U (zh) 三合形状教具
CN212219755U (zh) 一种多功能教学用尺
CN202169820U (zh) 多功能量角器
CN201792640U (zh) 多用直尺
CN202862935U (zh) 一种数学组合尺
CN102381100A (zh) 多用直尺
CN208855300U (zh) 一种多功能数学尺
CN204382960U (zh) 一种多功能数学教学工具
CN205573419U (zh) 一种多功能尺

## Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151007

Termination date: 20160612

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