CN201400022Y - 半径精确的圆规 - Google Patents

半径精确的圆规 Download PDF

Info

Publication number
CN201400022Y
CN201400022Y CN2009200845178U CN200920084517U CN201400022Y CN 201400022 Y CN201400022 Y CN 201400022Y CN 2009200845178 U CN2009200845178 U CN 2009200845178U CN 200920084517 U CN200920084517 U CN 200920084517U CN 201400022 Y CN201400022 Y CN 201400022Y
Authority
CN
China
Prior art keywords
compasses
radius
slide block
vernier
sliding sleeve
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
CN2009200845178U
Other languages
English (en)
Inventor
黎鹏
黄永平
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.)
Wuhan No 11 Middle School
Original Assignee
Wuhan No 11 Middle School
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 Wuhan No 11 Middle School filed Critical Wuhan No 11 Middle School
Priority to CN2009200845178U priority Critical patent/CN201400022Y/zh
Application granted granted Critical
Publication of CN201400022Y publication Critical patent/CN201400022Y/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

一种半径精确的圆规，包括：带针的圆规脚(1)，游标尺(2)一头和带针的圆规脚(1)上的滑套(7)相连，游标尺(2)上装有滑块(4)，滑块(4)上装有紧固螺钉(3)，滑块(4)下方有一个装铅笔的圆孔(8)，圆孔(8)外装有紧固螺钉(6)，滑套(7)上装有紧固螺钉(5)。其优点是：降低圆规重心，圆规针定心后，由于垂直力不会移动，且用游标尺精确量出所需半径，半径确定后不易改变，能精确画圆，结构简单，使用方便，特别适合广大中小学生使用。

Description

半径精确的圆规
技术领域
本实用新型涉及学习用具技术领域，具体的说是一种半径精确的圆规。
背景技术
现在学生使用的圆规，两脚分开，重心偏高，使用时如果用力不当，会稍微改变原定半径，影响绘图的精确度。
发明内容
本实用新型的目的是设计一种能精确画圆的半径精确的圆规。
本实用新型半径精确的圆规，包括：带针的圆规脚1，游标尺2一头和带针的圆规脚1上的滑套7相连，游标尺2上装有滑块4，滑块4上装有紧固螺钉3，滑块4下方有一个装铅笔的圆孔8，圆孔8外装有紧固螺钉6，滑套7上装有紧固螺钉5。
本实用新型半径精确的圆规的优点是：降低圆规重心，圆规针定心后，由于垂直力不会移动，且用游标尺精确量出所需半径，半径确定后不易改变，能精确画圆，结构简单，使用方便，特别适合广大中小学生使用。
附图说明
图1为半径精确的圆规的结构示意图。
具体实施方式
根据图1所示，一种半径精确的圆规，包括：带针的圆规脚1，游标尺2一头和带针的圆规脚1上的滑套7相连，游标尺2上装有滑块4，滑块4上装有紧固螺钉3，滑块4下方有一个装铅笔的圆孔8，圆孔8外装有紧固螺钉6，滑套7上装有紧固螺钉5。

Claims (1)

1、一种半径精确的圆规，包括：带针的圆规脚(1)，其特征在于：游标尺(2)一头和带针的圆规脚(1)上的滑套(7)相连，游标尺(2)上装有滑块(4)，滑块(4)上装有紧固螺钉(3)，滑块(4)下方有一个装铅笔的圆孔(8)，圆孔(8)外装有紧固螺钉(6)，滑套(7)上装有紧固螺钉(5)。
CN2009200845178U 2009-03-27 2009-03-27 半径精确的圆规 Expired - Fee Related CN201400022Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200845178U CN201400022Y (zh) 2009-03-27 2009-03-27 半径精确的圆规

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200845178U CN201400022Y (zh) 2009-03-27 2009-03-27 半径精确的圆规

Publications (1)

Publication Number Publication Date
CN201400022Y true CN201400022Y (zh) 2010-02-10

Family

ID=41659818

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200845178U Expired - Fee Related CN201400022Y (zh) 2009-03-27 2009-03-27 半径精确的圆规

Country Status (1)

Country Link
CN (1) CN201400022Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101941346A (zh) * 2010-10-27 2011-01-12 唐供宾 圆规
CN110525090A (zh) * 2019-06-28 2019-12-03 广州市轻工高级技工学校 一种精密长杆圆规

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101941346A (zh) * 2010-10-27 2011-01-12 唐供宾 圆规
CN110525090A (zh) * 2019-06-28 2019-12-03 广州市轻工高级技工学校 一种精密长杆圆规

Similar Documents

Publication Publication Date Title
CN203364717U (zh) 桩径和桩位中心点的测量尺
CN201400022Y (zh) 半径精确的圆规
CN202439433U (zh) 一种教学圆规
CN203364821U (zh) 一种四角水平仪
CN203410211U (zh) 一种圆规
CN102267319A (zh) 一种绘图圆规
CN203198515U (zh) 圆尺
CN202734734U (zh) 三角形电缆弯曲半径测量工具
CN201819638U (zh) 一种游标卡尺
CN201476783U (zh) 多功能量角器
CN201026753Y (zh) 多功能教具
CN204296303U (zh) 一种多功能教学圆规
CN104154836A (zh) 一种用于测量杠杆吊座a值的量规
CN202448588U (zh) 一种多功能尺
CN202242601U (zh) 一种圆规
CN201784341U (zh) 一种圆规
CN203110690U (zh) 多功能直径圆规
CN201998689U (zh) 新型圆规
CN202439439U (zh) 一种多功能数学教具
CN201095242Y (zh) 多用圆规
CN202903034U (zh) 一种多功能测量尺
CN201941411U (zh) 一种组合教具
CN201970693U (zh) 一种尺
CN202727747U (zh) 可测画圆半径的圆规
CN203249558U (zh) 一种高精度量角器

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: 20100210

Termination date: 20110327