CN203172274U - Modified compasses - Google Patents

Modified compasses Download PDF

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Publication number
CN203172274U
CN203172274U CN 201320057995 CN201320057995U CN203172274U CN 203172274 U CN203172274 U CN 203172274U CN 201320057995 CN201320057995 CN 201320057995 CN 201320057995 U CN201320057995 U CN 201320057995U CN 203172274 U CN203172274 U CN 203172274U
Authority
CN
China
Prior art keywords
compasses
rule
modified
utility
model
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
CN 201320057995
Other languages
Chinese (zh)
Inventor
张凡
魏本刚
张焕中
李玉平
Original Assignee
张凡
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 张凡 filed Critical 张凡
Priority to CN 201320057995 priority Critical patent/CN203172274U/en
Application granted granted Critical
Publication of CN203172274U publication Critical patent/CN203172274U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a learning tool, in particular to modified compasses. The modified compasses comprise a dividing ruler. The modified compasses are characterized in that a fixed original point is arranged at one end of the dividing ruler, a moving paining point which is fixed through an adjustable bolt is further arranged on the dividing ruler, and a telescopic ruler is arranged in the dividing ruler. Therefore, the modified compasses have the advantages of being simple in structure, capable of adjusting the radius of a drawn circle according to needs and broadening the extension range and the application range of circle drawing, convenient to use and practical.

Description

A kind of improvement compasses
(1) technical field
The utility model relates to a kind of schooling apparatus, particularly a kind of improvement compasses.
(2) background technology
Compasses commonly used are that two movable leg are formed, a fixed origin, and one is opened rotation picture circle.The circle of wanting divider calipers to decide radius or diameter needs the cooperation of rule, draws after measuring with compasses earlier again, and is the size that the length of two legs determines the picture circle, and often size can not be general, little is used for self-study, big is used for teacher's demonstration.
(3) summary of the invention
The utility model is in order to remedy the deficiencies in the prior art, provide a kind of simple in structure, easily transfer radius, convenient and practical improvement compasses.
The utility model is achieved by the following technical solution:
A kind of improvement compasses comprise rule, it is characterized in that: rule one end is provided with fixed origin, also is provided with on the rule with the fixing mobile picture point of adjustable bolt.
Improvement compasses of the present utility model is characterized in that: be provided with shrinkage-rule in the rule.
Therefore, the beneficial effects of the utility model are: these improvement compasses, and simple in structure, can adjust the picture radius of circle as required, flexible yardstick and the range of application expansion of drawing circle, convenient and practical.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is structural representation of the present utility model.
Among the figure, 1 rule, 2 fixed origin, 3 bolts, 4 move picture point, 5 shrinkage-rules.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises rule 1, it is characterized in that: rule 1 one ends are provided with fixed origin 2, also are provided with the mobile picture point of fixing with adjustable bolt 34 on the rule 1; Be provided with shrinkage-rule 5 in the rule 1.
Adopt improvement compasses of the present utility model, draw bowlder and pin the fixed origin 2 of rule 1 one ends, determine radius at rule 1 as required, drawing bowlder is fixed on adjustable set bolt 3 on the rule 1, be the center of circle with fixed origin 2,3 mobile picture points 4 of rotating bolt satisfactory circle that just can draw, when length requirement is too big, shrinkage-rule 5 can be extracted out, to increase radius of a circle, mobile picture point 4 is provided with draw-in groove, can fix multiple paintbrush, as pencil, chalk etc., to adapt to different user demands.Therefore, the beneficial effects of the utility model are: these improvement compasses, and simple in structure, can adjust the picture radius of circle as required, flexible yardstick and the range of application expansion of drawing circle, convenient and practical.

Claims (2)

1. improvement compasses comprise rule (1), and it is characterized in that: rule (1) one end is provided with fixed origin (2), also are provided with on the rule (1) with the fixing mobile picture point (4) of adjustable bolt (3).
2. improvement compasses according to claim 1 is characterized in that: be provided with shrinkage-rule (5) in the rule (1).
CN 201320057995 2013-02-01 2013-02-01 Modified compasses Expired - Fee Related CN203172274U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320057995 CN203172274U (en) 2013-02-01 2013-02-01 Modified compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320057995 CN203172274U (en) 2013-02-01 2013-02-01 Modified compasses

Publications (1)

Publication Number Publication Date
CN203172274U true CN203172274U (en) 2013-09-04

Family

ID=49069021

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320057995 Expired - Fee Related CN203172274U (en) 2013-02-01 2013-02-01 Modified compasses

Country Status (1)

Country Link
CN (1) CN203172274U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106773189A (en) * 2017-03-27 2017-05-31 武汉华星光电技术有限公司 The method that macroscopical automatic check machine and lifting display abnormal area measure efficiency
CN113635695A (en) * 2021-09-06 2021-11-12 浙江农林大学 Telescopic folding multifunctional novel ruler for teaching and engineering drawing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106773189A (en) * 2017-03-27 2017-05-31 武汉华星光电技术有限公司 The method that macroscopical automatic check machine and lifting display abnormal area measure efficiency
CN113635695A (en) * 2021-09-06 2021-11-12 浙江农林大学 Telescopic folding multifunctional novel ruler for teaching and engineering drawing

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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: 20130904

Termination date: 20140201