CN204414932U - Novel bow compass - Google Patents
Novel bow compass Download PDFInfo
- Publication number
- CN204414932U CN204414932U CN201520073376.5U CN201520073376U CN204414932U CN 204414932 U CN204414932 U CN 204414932U CN 201520073376 U CN201520073376 U CN 201520073376U CN 204414932 U CN204414932 U CN 204414932U
- Authority
- CN
- China
- Prior art keywords
- shape
- fixing feet
- pin
- stud
- shape fixing
- 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
Links
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model discloses a kind of novel bow compass, it is characterized in that, L shape fixing feet and L shape picture pin is connected with respectively by rotating shaft at the two ends of entablature, the lower end of drawing pin in described L shape fixing feet and L shape is respectively equipped with locking pin and pencil-lead fixture, stud is located at the middle part of entablature, the diameter of described stud is greater than L shape fixing feet and L shape and draws distance between pin, stud lower end surface is drawn pin with L shape fixing feet and L shape and is matched, realize the expansion of L shape fixing feet and L shape being drawn to underfooting portion, back-moving spring is connected to L shape fixing feet and L shape and draws middle part between pin.By above setting, the utility model is convenient to regulate, and draws the distance between the portion of underfooting, determine the size of radius of circle, draw required circle fast by rotation stud adjustment L shape fixing feet and L shape, is convenient to user and uses.
Description
Technical field
The utility model relates to a kind of stationery, is a kind of novel bow compass specifically.
Background technology
The common compasses of existing student or drawing librarian use, mostly are the common compasses in " people " font, regulate loaded down with trivial details, and be not easy to fastening during drawing, easily loosening, disposablely can not draw required circle, bringing inconvenience to user when charting.
Summary of the invention
The purpose of this utility model provides a kind of novel bow compass.
To achieve these goals, the utility model is connected with L shape fixing feet at the two ends of entablature respectively by rotating shaft and L shape draws pin, the lower end of drawing pin in described L shape fixing feet and L shape is respectively equipped with locking pin and pencil-lead fixture, stud is located at the middle part of entablature, the diameter of described stud is greater than L shape fixing feet and L shape and draws distance between pin, stud lower end surface is drawn pin with L shape fixing feet and L shape and is matched, realize the expansion of L shape fixing feet and L shape being drawn to underfooting portion, back-moving spring is connected to L shape fixing feet and L shape and draws middle part between pin.
By above setting, the utility model is convenient to regulate, and draws the distance between the portion of underfooting, determine the size of radius of circle, draw required circle fast by rotation stud adjustment L shape fixing feet and L shape, is convenient to user and uses.
Accompanying drawing explanation
Now by reference to the accompanying drawings the utility model is described further.
Fig. 1 is structural representation of the present utility model.
In figure: 1, entablature, 2, rotating shaft, 3, L shape fixing feet, 4, L shape draws pin, 5, locking pin, 6, pencil-lead fixture, 7, stud, 8, back-moving spring.
Detailed description of the invention
As shown in Figure 1, the utility model is connected with L shape fixing feet 3 at the two ends of entablature 1 respectively by rotating shaft 2 and L shape draws pin 4, the lower end of drawing pin 4 in described L shape fixing feet 3 and L shape is respectively equipped with locking pin 5 and pencil-lead fixture 6, stud 7 is located at the middle part of entablature 1, the diameter of described stud 7 is greater than L shape fixing feet 3 and L shape and draws distance between pin 4, stud 7 lower end surface is drawn pin 4 with L shape fixing feet 3 and L shape and is matched, realize the expansion of L shape fixing feet 3 and L shape being drawn to pin 4 bottom, back-moving spring 8 is connected to L shape fixing feet 3 and L shape and draws middle part between pin 4.By above setting, realize drawing the expansion of pin 4 bottom to L shape fixing feet 3 and L shape and closing by rotating stud 7 of the present utility model, regulate required picture radius of a circle, L shape fixing feet 3 and L shape are drawn pin 4 and are strained by back-moving spring 8, the utility model is fixed on the top of paper by the locking pin 5 of L shape fixing feet 3 lower end, the circle drawn required for swing bolster 1, the L shape pencil-lead drawn in pin 4 lower end pencil-lead fixture 6 can draw on paper.
Claims (1)
1. novel bow compass, it is characterized in that: be connected with L shape fixing feet and L shape picture pin at the two ends of entablature respectively by rotating shaft, the lower end of drawing pin in described L shape fixing feet and L shape is respectively equipped with locking pin and pencil-lead fixture, stud is located at the middle part of entablature, the diameter of described stud is greater than L shape fixing feet and L shape and draws distance between pin, stud lower end surface is drawn pin with L shape fixing feet and L shape and is matched, realize the expansion of L shape fixing feet and L shape being drawn to underfooting portion, back-moving spring is connected to L shape fixing feet and L shape and draws middle part between pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520073376.5U CN204414932U (en) | 2015-01-31 | 2015-01-31 | Novel bow compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520073376.5U CN204414932U (en) | 2015-01-31 | 2015-01-31 | Novel bow compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204414932U true CN204414932U (en) | 2015-06-24 |
Family
ID=53465332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520073376.5U Expired - Fee Related CN204414932U (en) | 2015-01-31 | 2015-01-31 | Novel bow compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204414932U (en) |
-
2015
- 2015-01-31 CN CN201520073376.5U patent/CN204414932U/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: 20150624 Termination date: 20160131 |
|
| EXPY | Termination of patent right or utility model |