CN201712348U - Precision compasses - Google Patents
Precision compasses Download PDFInfo
- Publication number
- CN201712348U CN201712348U CN201020172090XU CN201020172090U CN201712348U CN 201712348 U CN201712348 U CN 201712348U CN 201020172090X U CN201020172090X U CN 201020172090XU CN 201020172090 U CN201020172090 U CN 201020172090U CN 201712348 U CN201712348 U CN 201712348U
- Authority
- CN
- China
- Prior art keywords
- straight ruler
- ruler
- compasses
- leg
- circle
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a pair of precision compasses belonging to the field of drawing tools, which mainly solve the problem that the conventional compasses are inconvenient to measure the radius during drawing. The precision compasses comprise a handle, a fixed leg and a movable leg, and are characterized in that the handle is positioned on the upper side of the fixed leg, a straight ruler is arranged on the fixed leg, the straight ruler is perpendicular to the fixed leg, length scale marks are arranged on the straight ruler, the movable leg is movably arranged on the straight ruler, and the movable leg is parallel to the fixed leg. When the precision compasses are used, the movable leg slides along the straight ruler until reaching the desired scale mark and the desired scale mark is the radius of the circle to be drawn, so as to provide convenience for rapidly drawing the circle, save the trouble of measuring the radius by use of the special straight ruler and improve circle drawing efficiency.
Description
Technical field
The utility model relates to a kind of drawing instrument, specifically is a kind of accurate compasses.
Background technology
Compasses are to be used for the instrument of picture circle and circular arc in mathematics and drawing, existing compasses in use earlier with the good fixing feet of ruler measurement terminal with movable pin end between distance, in order to determine radius, draw then round, cumbersome, inefficiency.
The utility model content
The purpose of this utility model is to provide a kind of accurate compasses, and these compasses have the function of measuring radius simultaneously, has improved the efficient of drawing circle.
The technical scheme in the invention for solving the technical problem is: a kind of accurate compasses, comprise handle, fixing feet and movable pin, it is characterized in that, described handle is positioned at the top of fixing feet, fixing feet is provided with a ruler, described ruler is vertical with fixing feet, and ruler is provided with the length scale; Described movable pin is movably arranged on the ruler, and movable pin is parallel with fixing feet.
The beneficial effects of the utility model are: during use, movable pin is slided on the corresponding scale along ruler, this scale is drawn radius of a circle value, can draw circle easily and fast, has saved the trouble of measuring radius specially with ruler, has improved the efficient of drawing circle.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 handle, 2 fixing feet, 3 rulers, 4 movable pin.
The specific embodiment
As shown in Figure 1.A kind of accurate compasses comprise handle 1, fixing feet 2 and movable pin 4, and described handle 1 is positioned at the top of fixing feet 2, and fixing feet 2 is provided with a ruler 3, and described ruler 3 is vertical with fixing feet 2, and ruler 3 is provided with the length scale; Described movable pin 4 is movably arranged on the ruler 3, and movable pin 4 is parallel with fixing feet 2.
During use, movable pin 4 is slided on the corresponding scale along ruler 3, this scale is drawn radius of a circle value, can draw circle easily and fast, has saved the trouble of measuring radius specially with ruler, has improved the efficient of drawing circle.
Claims (1)
1. accurate compasses comprise handle, fixing feet and movable pin, it is characterized in that described handle is positioned at the top of fixing feet, and fixing feet is provided with a ruler, and described ruler is vertical with fixing feet, and ruler is provided with the length scale; Described movable pin is movably arranged on the ruler, and movable pin is parallel with fixing feet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020172090XU CN201712348U (en) | 2010-04-28 | 2010-04-28 | Precision compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020172090XU CN201712348U (en) | 2010-04-28 | 2010-04-28 | Precision compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201712348U true CN201712348U (en) | 2011-01-19 |
Family
ID=43458347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020172090XU Expired - Fee Related CN201712348U (en) | 2010-04-28 | 2010-04-28 | Precision compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201712348U (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 |
| CN109159585A (en) * | 2018-11-06 | 2019-01-08 | 苏州中誉智骏企业管理有限公司 | A kind of high precisely adjusting compasses of teaching drawing |
-
2010
- 2010-04-28 CN CN201020172090XU patent/CN201712348U/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 |
| CN109159585A (en) * | 2018-11-06 | 2019-01-08 | 苏州中誉智骏企业管理有限公司 | A kind of high precisely adjusting compasses of teaching 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: 20110119 Termination date: 20110428 |