CN201800389U - Circle-drawing ruler - Google Patents
Circle-drawing ruler Download PDFInfo
- Publication number
- CN201800389U CN201800389U CN2010205528092U CN201020552809U CN201800389U CN 201800389 U CN201800389 U CN 201800389U CN 2010205528092 U CN2010205528092 U CN 2010205528092U CN 201020552809 U CN201020552809 U CN 201020552809U CN 201800389 U CN201800389 U CN 201800389U
- Authority
- CN
- China
- Prior art keywords
- ruler
- circle
- tooth bar
- picture
- rack
- 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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Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a teaching tool, in particular to a circle-drawing ruler belonging to the field of articles for stationary of students. The circle-drawing ruler comprises a ruler and is characterized in that two sides of the upper side edge of the ruler are provided with handles; the horizontal middle parts at two ends of the front surface of the ruler are connected with a rack which penetrates through the ruler; the head end of the rack is provided with a needle head for fixing; and the middle of the rack clamps a circle-drawing head with a pencil lead by an elastic buckle. Therefore, in the circle-drawing ruler, the structure is simple and the use is convenient.
Description
(1) technical field
The utility model relates to a kind of teaching aid, and particularly a kind of picture circle ruler belongs to student stationery articles for use field.
(2) background technology
Our teaching now mostly is compasses with the round instrument of picture, and when using compasses, we must measure the distance of compasses bipod earlier, use complex steps, use inconvenient.
(3) summary of the invention
The utility model provides a kind of picture simple in structure, easy to use circle ruler in order to remedy the deficiencies in the prior art.
The utility model is achieved by the following technical solution:
A kind of picture circle ruler comprises ruler, and it is characterized in that: described ruler upper side edge two ends are provided with handle; The positive two ends of described ruler lateral middle is connected with the tooth bar that runs through ruler, and the tooth bar head end is provided with the fixedly syringe needle of usefulness, and the tooth bar middle part is placed with the picture round end of band pencil-lead by the strainer card.
The thickness of described ruler is the 3-5 millimeter.
The beneficial effects of the utility model are: simple in structure, easy to use, do not need to measure the distance between the bipod, and directly will draw round end and forget about it corresponding distance and just can draw.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is a structural representation of the present utility model;
Among the figure, 1 ruler, 2 handles, 3 tooth bars, 4 syringe needles, 5 strainers, 6 pencil-leads, 7 draw round end.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises ruler 1, it is characterized in that: described ruler 1 upper side edge two ends are provided with handle 2; Described ruler 1 positive two ends lateral middle is connected with the tooth bar 3 that runs through ruler 1, and tooth bar 3 head ends are provided with the fixedly syringe needle 4 of usefulness, and tooth bar 3 middle parts are placed with the picture round end 7 of band pencil-lead 6 by strainer 5 cards; The thickness of described ruler 1 is the 3-5 millimeter.
Adopt picture circle ruler of the present utility model, when using, be transferred to the corresponding position of tooth bar 3 with drawing round end 7, and be fixed, then syringe needle 4 is fixed on the center of circle, when drawing circle, holds the handle 2 of head end, the handle 2 of the another hand slip other end is drawn with pencil-lead 6 and to be wanted the circle that obtains.
Claims (2)
1. draw the circle ruler for one kind, comprise ruler (1), it is characterized in that: described ruler (1) upper side edge two ends are provided with handle (2); The positive two ends of described ruler (1) lateral middle is connected with the tooth bar (3) that runs through ruler (1), and tooth bar (3) head end is provided with the fixedly syringe needle of usefulness (4), and the picture round end (7) of band pencil-lead (6) is put at tooth bar (3) middle part by strainer (5) card.
2. picture circle ruler according to claim 1, it is characterized in that: the thickness of described ruler (1) is the 3-5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205528092U CN201800389U (en) | 2010-10-08 | 2010-10-08 | Circle-drawing ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205528092U CN201800389U (en) | 2010-10-08 | 2010-10-08 | Circle-drawing ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201800389U true CN201800389U (en) | 2011-04-20 |
Family
ID=43869906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205528092U Expired - Fee Related CN201800389U (en) | 2010-10-08 | 2010-10-08 | Circle-drawing ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201800389U (en) |
-
2010
- 2010-10-08 CN CN2010205528092U patent/CN201800389U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20111008 |