CN202517950U - Multipurpose compass - Google Patents
Multipurpose compass Download PDFInfo
- Publication number
- CN202517950U CN202517950U CN2012201659027U CN201220165902U CN202517950U CN 202517950 U CN202517950 U CN 202517950U CN 2012201659027 U CN2012201659027 U CN 2012201659027U CN 201220165902 U CN201220165902 U CN 201220165902U CN 202517950 U CN202517950 U CN 202517950U
- Authority
- CN
- China
- Prior art keywords
- ruler
- protractor
- board body
- plate body
- 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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Abstract
A multipurpose compass comprises a protractor, a telescopic ruler and a board body, wherein the ruler and the board body are in shaft connection at the circle center of the protractor; a conical rod body is vertically and fixedly connected at the position of the bottom surface of the board body, which is far away from the protractor; and a plurality of through holes are formed on the surface of the ruler at equal intervals. In describing a circle, the conical rod body on the bottom surface of the board body can be used as a supporting point, a pen tip is inserted in the through holes on the surface of the ruler, and the ruler is rotated, thus a circle with known radius is described; the protractor conveniently measures angles; and the protractor, the board body and the ruler are matched to draw angles. The multipurpose compass has the advantages that structure is simple, use is convenient and the like, and integrates multiple functions, thus bringing greater convenience for use of people.
Description
Technical field the utility model relates to a kind of stationery, especially a kind of Napier's compasses that make things convenient for picture angle, angulation, picture circle, draw straight line.
Background technology is well-known; Compasses are one of higher stationery of frequency of utilization in people's daily life, the study; But existing compasses function singleness can not satisfy people's use needs, and for example: existing compasses only provide the function of picture circle; Can not the function of drawing angle, angulation, picture straight line be integrated in one, bring inconvenience for people's use.
The purpose of summary of the invention the utility model is to provide a kind of and has the picture circle concurrently, draws the Napier's compasses of angle, angulation, picture straight line function, to solve existing compasses function singleness, can not satisfy the problem that people use needs.
The utility model comprises protractor, Expansion ruler and plate body, and protractor circle centre position axle connects ruler and plate body; In the bottom surface of plate body away from the vertical affixed taper body of rod in the position of protractor; Surperficial equidistance at ruler is provided with a plurality of open-works.
After adopting said structure, drawing bowlder, can the plate body bottom surface taper body of rod be the strong point, nib is inserted in the open-work on ruler surface rotation ruler, the known radii of can drawing circle; Protractor makes things convenient for angulation; Protractor, plate body and ruler collocation can be drawn the angle.
The utlity model has advantages such as simple in structure, easy to use, gather multi-function in integral whole, bring greater convenience for people's use.
Description of drawings Fig. 1 is the vertical view of the utility model.
The specific embodiment comprises protractor 1 in the vertical view of Napier's compasses shown in Figure 1, Expansion ruler 2 and plate body 3, and protractor circle centre position axle connects ruler and plate body; In the bottom surface of plate body away from the vertical affixed taper body of rod 4 in the position of protractor; Surperficial equidistance at ruler is provided with a plurality of open-works 5; During use, protractor is convenient for people to the number of degrees of measured angular; Ruler is convenient for people to draw straight line and the length of measuring line segment; Drawing bowlder, can the plate body bottom surface taper body of rod be the strong point, nib is inserted in the open-work on ruler surface, rotates ruler then, the known radii of can drawing circle; When drawing the angle, with after the zero graduation line of protractor overlaps, the utilization hornwork measures the number of degrees at angle with one side of plate body; The circular arc that draws then, the straight line that utilizes plate body and ruler to draw and join with circular arc again prolongs two straight lines at last; Join the angle that to draw the known number of degrees until two straight lines.
Claims (3)
1. Napier's compasses comprise protractor, and Expansion ruler and plate body is characterized in that: protractor circle centre position axle connects ruler and plate body.
2. a kind of Napier's compasses according to claim 1 is characterized in that: in the bottom surface of plate body away from the vertical affixed taper body of rod in the position of protractor.
3. a kind of Napier's compasses according to claim 1 is characterized in that being: the surperficial equidistance at ruler is provided with a plurality of open-works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201659027U CN202517950U (en) | 2012-04-19 | 2012-04-19 | Multipurpose compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201659027U CN202517950U (en) | 2012-04-19 | 2012-04-19 | Multipurpose compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202517950U true CN202517950U (en) | 2012-11-07 |
Family
ID=47100912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201659027U Expired - Fee Related CN202517950U (en) | 2012-04-19 | 2012-04-19 | Multipurpose compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202517950U (en) |
-
2012
- 2012-04-19 CN CN2012201659027U patent/CN202517950U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20121107 Termination date: 20150419 |
|
| EXPY | Termination of patent right or utility model |