CN201961013U - Large-diameter compass - Google Patents
Large-diameter compass Download PDFInfo
- Publication number
- CN201961013U CN201961013U CN2010206496489U CN201020649648U CN201961013U CN 201961013 U CN201961013 U CN 201961013U CN 2010206496489 U CN2010206496489 U CN 2010206496489U CN 201020649648 U CN201020649648 U CN 201020649648U CN 201961013 U CN201961013 U CN 201961013U
- Authority
- CN
- China
- Prior art keywords
- ruler
- compass
- diameter
- circle
- radius
- 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
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Abstract
The utility model relates to a large-diameter compass, which belongs to stationery, and solves the problems that the two legs of the conventional compass are crossed and inconvenient to draw a large-diameter circle, and the radius is required to be measured. The large-diameter compass comprises a fixed leg, a movable leg and a handle, and is characterized in that the fixed leg and the movable leg are arranged on a ruler in a mutual paralleling manner; one side of the ruler is marked with scales; the fixed leg is fixedly arranged in the benchmark position of the scales; the movable leg is movably sleeved on the ruler through a lantern ring; and a positioning screw is arranged on the lantern ring. When the large-diameter compass is in use, the position of the movable leg on the ruler can be adjusted to be in the radius position of the circle according to the size of the radius of the circle to be drawn and the scales on the ruler, not only the large-diameter circle can be drawn conveniently, but also the measurement of the distance between the two legs of the compass is avoided, and the efficiency is improved.
Description
Technical field
The utility model relates to a kind of stationery, specifically a kind of major diameter compasses.
Background technology
Now two pin of the compasses used of student intersect, if draw the circle of mark cun, need measure with ruler, and are cumbersome, and when radius of a circle during greater than the open size of compasses bipod just picture do not come out.
The utility model content
Technical assignment of the present utility model is to provide a kind of major diameter compasses at above-mentioned deficiency of the prior art, these compasses large diameter circle that can draw easily, and be provided with ruler between the bipod of compasses and can determine drawn radius of a circle easily.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of major diameter compasses, comprise fixing feet, movable pin and handle, it is characterized in that, what described fixing feet and movable pin were parallel to each other is installed on the ruler, one side of ruler is provided with scale, fixing feet is fixedly installed on the benchmark place of graduation mark, and movable pin is nested with on ruler by collar activity, and the collar is provided with set screw.
The utlity model has following outstanding beneficial effect: the fixing feet of compasses and movable pin adopt and be arranged in parallel, and large diameter circle easily can draw; Fixing feet and movable pin are installed on the ruler, and ruler is provided with scale, can improve drawing efficiency according to the distance between drawn radius of a circle adjustment bipod.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Description of reference numerals: 1 ruler, 2 collars, 3 movable pin 4 set screws.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of major diameter compasses, comprise fixing feet, movable pin 3 and handle, what described fixing feet and movable pin 3 were parallel to each other is installed on the ruler 1, one side of ruler 1 is provided with scale, fixing feet is fixedly installed on the benchmark place of graduation mark, and movable pin 3 is nested with on ruler 1 by the collar 2 activities, and the collar 2 is provided with set screw 4.
During use, size according to the radius of a circle of required picture is in drawn radius of circle place with reference to the position of scale adjustable pin 3 on ruler 1 on the ruler, and large diameter circle easily not only can draw, can also save the step of tolerance compasses foot spacing, improve efficient.
Claims (1)
1. major diameter compasses, comprise fixing feet, movable pin and handle, it is characterized in that, what described fixing feet and movable pin were parallel to each other is installed on the ruler, one side of ruler is provided with scale, fixing feet is fixedly installed on the benchmark place of graduation mark, and movable pin is nested with on ruler by collar activity, and the collar is provided with set screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206496489U CN201961013U (en) | 2010-12-09 | 2010-12-09 | Large-diameter compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206496489U CN201961013U (en) | 2010-12-09 | 2010-12-09 | Large-diameter compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201961013U true CN201961013U (en) | 2011-09-07 |
Family
ID=44523547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206496489U Expired - Fee Related CN201961013U (en) | 2010-12-09 | 2010-12-09 | Large-diameter compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201961013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442130A (en) * | 2011-10-22 | 2012-05-09 | 奇瑞汽车股份有限公司 | Graph plotter for plotting circles |
| CN106494135A (en) * | 2016-11-05 | 2017-03-15 | 刘志明 | A kind of novel bow compass |
-
2010
- 2010-12-09 CN CN2010206496489U patent/CN201961013U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442130A (en) * | 2011-10-22 | 2012-05-09 | 奇瑞汽车股份有限公司 | Graph plotter for plotting circles |
| CN106494135A (en) * | 2016-11-05 | 2017-03-15 | 刘志明 | A kind of novel bow compass |
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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: 20110907 Termination date: 20111209 |