# CN204870231U - 一种数学教学用快速作图工具 - Google Patents

## Info

Publication number
CN204870231U
CN204870231U CN201520455529.2U CN201520455529U CN204870231U CN 204870231 U CN204870231 U CN 204870231U CN 201520455529 U CN201520455529 U CN 201520455529U CN 204870231 U CN204870231 U CN 204870231U
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China
Prior art keywords
plate body
angle
angle line
scale
backstay
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Expired - Fee Related
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CN201520455529.2U
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English (en)
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Individual
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Individual
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Priority to CN201520455529.2U priority Critical patent/CN204870231U/zh
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Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

## Claims (4)

1.一种数学教学用快速作图工具，包括板体，其特征在于，所述板体的上半部设有镂空的角度线槽，角度线槽的弧形部分外圈配合设有滑槽导轨，滑槽导轨的外侧于板体上设有角度线刻度，所述板体的中心位置设有转轴，转轴上转动设有角度线定位杆，角度线定位杆上设有角度线定位杆刻度，所述角度线定位杆的另一端端部设有指示箭头,指示箭头的尖端位于板体的上半部外圈的中间位置，所述角度线定位杆上于滑槽导轨所处的位置套接固定于垫片的外圈，垫片的中部竖直滑动连接有螺杆,螺杆的底端于滑槽导轨的内部设有限位滑块，所述垫片的上侧于螺杆上螺纹连接有螺母，所述板体的下半部上以转轴为中心均匀分布设有若干主量角器刻度，所述板体的下半部外圈与主量角器刻度均匀配合设有副量角器刻度，所述板体的下半部背面左右两侧均设有磁铁。
2.根据权利要求1所述的数学教学用快速作图工具，其特征在于，所述板体为圆形，由透明轻质塑料制成。
3.根据权利要求1所述的数学教学用快速作图工具，其特征在于，所述角度线槽为半圆形。
4.根据权利要求1所述的数学教学用快速作图工具，其特征在于，所述磁铁内嵌设置于板体的背面左右两侧。
CN201520455529.2U 2015-06-29 2015-06-29 一种数学教学用快速作图工具 Expired - Fee Related CN204870231U (zh)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520455529.2U CN204870231U (zh) 2015-06-29 2015-06-29 一种数学教学用快速作图工具

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520455529.2U CN204870231U (zh) 2015-06-29 2015-06-29 一种数学教学用快速作图工具

## Publications (1)

Publication Number Publication Date
CN204870231U true CN204870231U (zh) 2015-12-16

# Family

## Family Applications (1)

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CN201520455529.2U Expired - Fee Related CN204870231U (zh) 2015-06-29 2015-06-29 一种数学教学用快速作图工具

## Country Status (1)

CN (1) CN204870231U (zh)

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106476497A (zh) * 2016-11-10 2017-03-08 陈征瀚 一种多功能角度尺

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106476497A (zh) * 2016-11-10 2017-03-08 陈征瀚 一种多功能角度尺

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

Granted publication date: 20151216

Termination date: 20160629