CN201366882Y - Ruler capable of drawing circle - Google Patents
Ruler capable of drawing circle Download PDFInfo
- Publication number
- CN201366882Y CN201366882Y CNU2009200111140U CN200920011114U CN201366882Y CN 201366882 Y CN201366882 Y CN 201366882Y CN U2009200111140 U CNU2009200111140 U CN U2009200111140U CN 200920011114 U CN200920011114 U CN 200920011114U CN 201366882 Y CN201366882 Y CN 201366882Y
- Authority
- CN
- China
- Prior art keywords
- ruler
- circle
- guide groove
- hole
- utility
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
A ruler capable of drawing a circle relates to a measuring tool, in particular to an improvement of a ruler structure. The utility model provides a ruler which saves time and labor, is very accurate and can draw the circle. The ruler comprises a ruler, and the structural points are as follows: the bottom part of the ruler is provided with a guide groove which is internally provided with a device for adjusting radius; the device for adjusting radius is internally provided with a pen hole; and one side of the front surface of the ruler is provided with a center positioning device.
Description
Technical field:
The utility model relates to a kind of survey tool, especially relates to a kind of improvement of ruler structure.
Background technology:
Existing ruler has only measurement function; Teaching or sheet metal workman need the picture circle often in work, just must be with compasses in addition, use just very time-consuming, effort like this, but also inaccurate.
The utility model content:
The utility model is exactly at above-mentioned problem, provides a kind of and saves time, laborsaving, and very can draw round ruler accurately.
For achieving the above object, the utility model adopts following technical scheme, the utility model comprises ruler, its structural feature is to be provided with guide groove in the bottom of ruler, in guide groove, be provided with and regulate the radius device, be provided with a hole in regulating the radius device, one side is provided with center of circle positioner in the front of ruler.
The beneficial effects of the utility model:
The utility model is provided with guide groove in the bottom of ruler, is provided with to regulate the radius device in guide groove, and one side is provided with center of circle positioner in the front of ruler.When thinking the picture bowlder, the location depression bar of pressing center of circle positioner is determined the position in the center of circle, according to the size of circle, regulate the position of regulating the radius device in the guide groove, pencil inserts in the hole, just can draw and justify, and uses saving time very, laborsaving but also very accurate.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the C-C cutaway view of Fig. 1;
Fig. 5 is the stereogram of adjusting radius device of the present utility model.
The specific embodiment:
The utility model comprises ruler 1, is provided with guide groove 2 in the bottom of ruler 1, is provided with to regulate radius device 3 in guide groove 2, regulates in the radius device 3 and is provided with a hole 4, and a side is provided with center of circle positioner 8 in the front of ruler 1.
A hole 4 of regulating radius device 3 is arranged on the base 7 with locating slot 5, and base 7 is positioned at the guide groove 2 of ruler 1, and the hole 4 on the front of ruler 1 is outside equipped with nut 6.
In use, press the location depression bar 9 of center of circle positioner 8 after, determine the center of circle, with regulating the size that radius device 3 is adjusted to be needed, pencils are inserted in a hole 4, draw circle or circular arc and get final product.
Claims (3)
1, a kind ofly can draw round ruler, comprise ruler (1), it is characterized in that being provided with guide groove (2) in the bottom of ruler (1), in guide groove (2), be provided with and regulate radius device (3), regulate in the radius device (3) and be provided with a hole (4), a side is provided with center of circle positioner (8) in the front of ruler (1).
2, according to claim 1ly a kind ofly can draw round ruler, it is characterized in that the location depression bar (9) of center of circle positioner (8) links to each other with spring (11) in ruler (1) outer cover (10).
3, according to claim 1ly a kind ofly can draw round ruler, a hole (4) that it is characterized in that regulating radius device (3) is arranged on the have locating slot base (7) of (5), base (7) is positioned at the guide groove (2) of ruler (1), and the hole (4) on the front of ruler (1) is outside equipped with nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200111140U CN201366882Y (en) | 2009-03-04 | 2009-03-04 | Ruler capable of drawing circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200111140U CN201366882Y (en) | 2009-03-04 | 2009-03-04 | Ruler capable of drawing circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201366882Y true CN201366882Y (en) | 2009-12-23 |
Family
ID=41485781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200111140U Expired - Fee Related CN201366882Y (en) | 2009-03-04 | 2009-03-04 | Ruler capable of drawing circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201366882Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571552A (en) * | 2020-05-12 | 2020-08-25 | 廖国华 | Circle drawing equipment for wood board processing |
-
2009
- 2009-03-04 CN CNU2009200111140U patent/CN201366882Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571552A (en) * | 2020-05-12 | 2020-08-25 | 廖国华 | Circle drawing equipment for wood board processing |
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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: 20091223 Termination date: 20110304 |