CN202641161U - Compasses convenient for drawing large circle - Google Patents
Compasses convenient for drawing large circle Download PDFInfo
- Publication number
- CN202641161U CN202641161U CN 201220308300 CN201220308300U CN202641161U CN 202641161 U CN202641161 U CN 202641161U CN 201220308300 CN201220308300 CN 201220308300 CN 201220308300 U CN201220308300 U CN 201220308300U CN 202641161 U CN202641161 U CN 202641161U
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- CN
- China
- Prior art keywords
- compasses
- pin
- large circle
- stitch
- head
- 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
The utility model relates to a pair of compasses convenient for drawing a large circle, which belongs to the stationery. The compasses can effectively solve the problem that the large circle is inconvenient to draw. The compasses structurally comprise a compasses head, wherein a handle is arranged above the compasses head, a needle pin and a lead pin are arranged below the compasses head, the needle pin is provided with a supporting rod with adjustable direction through a first tightening bolt, and the end of the supporting rod is fixedly provided with a positioning needle; and the end of the lead pin is provided with a pencil through a second tightening bolt. The compasses convenient for drawing the large circle are simple to operate, convenient to use and particularly applicable to students.
Description
Technical field
The utility model relates to a kind of stationery, especially a kind of compasses that make things convenient for the picture great circle.
Background technology
In the daily life, in school, compasses are a kind of stationery that the student often uses.General compasses, its structure comprises compasses head, described compasses head is provided with a handles, described compasses head is provided with stitch and plumbous pin, plumbous pin is provided with pencil, and stitch is provided with pilot pin, generally, pilot pin is directly to be fixed on the stitch, and can not relatively adjust direction between the stitch.Plumbous pin also is fixedly connected with pencil, and both can not adjust direction relatively.Therefore, when drawing great circle, stitch and plumbous pin gradient are too large, and the easy slippage of pilot pin during picture is used very inconvenient.
The utility model content
Technical assignment of the present utility model is to provide a kind of compasses that make things convenient for the picture great circle for above-mentioned deficiency of the prior art, and these compasses can effectively solve the problem of picture great circle inconvenience.
The technical scheme that its technical problem that solves the utility model adopts is: this kind makes things convenient for the compasses of picture great circle, its structure comprises compasses head, described compasses head top is provided with a handles, described compasses head below is provided with stitch and plumbous pin, it is characterized in that, described stitch is provided with a pole by the first fastening bolt, and the pole end is fixed with pilot pin; Described plumbous pin end is provided with pencil by the second fastening bolt.
The utlity model has following outstanding beneficial effect:
1, because described stitch is provided with a pole by the first fastening bolt, and the pole end is fixed with pilot pin, so the pilot pin of these compasses is rotatable, adjust direction, the phenomenon of pilot pin slippage can not appear when drawing great circle.
2, because described plumbous pin end is provided with pencil by the second fastening bolt, so also capable of regulating direction of the pencil of these compasses is more conducive to setting-out during use.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Description of reference numerals: 1 handle, 2 compasses heads, 3 plumbous pin, 4 pencils, 5 second fastening bolts, 6 poles, 7 first fastening bolts, 8 stitch.
The specific embodiment
As shown in Figure 1, this kind makes things convenient for the compasses of picture great circle, its structure comprises compasses head 2, described compasses head 2 tops are provided with a handles 1, described compasses head 2 belows are provided with stitch 8 and plumbous pin 3, described stitch 8 is provided with the pole 6 of a capable of regulating direction by the first fastening bolt 7, and pole 6 ends are fixed with pilot pin; Described plumbous pin 3 ends are provided with pencil 4 by the second fastening bolt 5.
During use, when drawing great circle, pole 6 and stitch 8 can be adjusted into 90 degree, fix by the first fastening bolt 7; Pencil 4 is adjusted to suitable angle, fix by the second fastening bolt 5, can draw.
Claims (1)
1. make things convenient for the compasses of picture great circle, its structure comprises compasses head, and described compasses head top is provided with a handles, described compasses head below is provided with stitch and plumbous pin, it is characterized in that described stitch is provided with a pole by the first fastening bolt, the pole end is fixed with pilot pin; Described plumbous pin end is provided with pencil by the second fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308300 CN202641161U (en) | 2012-06-28 | 2012-06-28 | Compasses convenient for drawing large circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308300 CN202641161U (en) | 2012-06-28 | 2012-06-28 | Compasses convenient for drawing large circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202641161U true CN202641161U (en) | 2013-01-02 |
Family
ID=47410318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308300 Expired - Fee Related CN202641161U (en) | 2012-06-28 | 2012-06-28 | Compasses convenient for drawing large circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202641161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935162A (en) * | 2014-02-08 | 2014-07-23 | 汤承原 | Compass capable of drawing six colors through gear adjustment |
-
2012
- 2012-06-28 CN CN 201220308300 patent/CN202641161U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935162A (en) * | 2014-02-08 | 2014-07-23 | 汤承原 | Compass capable of drawing six colors through gear adjustment |
| CN103935162B (en) * | 2014-02-08 | 2015-08-26 | 温州市张衡科技服务有限公司 | A kind of gear regulates six look compasses |
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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: 20130102 Termination date: 20130628 |