CN105479988A - Three-legged compasses - Google Patents
Three-legged compasses Download PDFInfo
- Publication number
- CN105479988A CN105479988A CN201510912586.3A CN201510912586A CN105479988A CN 105479988 A CN105479988 A CN 105479988A CN 201510912586 A CN201510912586 A CN 201510912586A CN 105479988 A CN105479988 A CN 105479988A
- Authority
- CN
- China
- Prior art keywords
- fixing feet
- compasses
- pin
- compasses head
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/02—Compasses
Landscapes
- Tables And Desks Characterized By Structural Shape (AREA)
Abstract
The invention relates to a pair of three-legged compasses. The pair of three-legged compasses comprises a compasses head, a fixed leg and two rotating legs, wherein one end of the fixed leg is fixed on the compasses head; the two rotating legs are respectively located at the two sides of the fixed leg and are located in the same plane with the fixed leg; one ends of the two rotating legs are articulated on the compasses head; the fixed leg is retractable and is provided with a limiting device; and the other ends of the two rotating legs are provided with leads. The pair of three-legged compasses is easy to operate.
Description
Technical field
The present invention relates to a kind of compasses, belong to novel office table separation.
Background technology
Compasses, in mathematics and drawing, are used to the instrument drawing circle or string, are usually used in construction with ruler and compasses.Compasses make material normally metal, be provided with two pin, upper end thereof, lower end can arbitrarily separate or close up, and to adjust the size of painted arc radius, the end of a pin is needle point, and the end of another pin can load paints pencil line or the line of ink marker.
But draw bowlder at the common compasses of use, need rotate with hand-held firmly compasses head and drive compasses head to draw a roundlet, not easy to operate, and easily cause firmly uneven and draw the situations such as askew.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of easy-operating compasses for the deficiencies in the prior art.
The present invention is the technical scheme solving the problems of the technologies described above proposition: a kind of Three point compass, comprise compasses head, fixing feet and rotation pin, described rotation pin is provided with two, one end of described fixing feet is fixed on compasses head, described two rotation pin lay respectively at fixing feet both sides and are positioned at same plane with described fixing feet, described two are rotated one end of pin and are hinged on respectively on compasses head, and described fixing feet is scalable and be provided with stopping means, and described two other ends rotating pin are equipped with lead for retractable pencil.
Being improved to technique scheme: described fixing feet is divided into top and bottom two parts, described top hollow, described lower end thereof is plugged in top, and lower end, described top is provided with stop nut.
Being improved to technique scheme: the described rotation pin other end is provided with clip, and described clip side is provided with binding nut, and described lead for retractable pencil is folded on clip.
Being improved to technique scheme: described compasses head and fixing feet are located along the same line.
When the present invention uses, first rotate pin separated by equal distances by two, then fixing feet is vertically stood on paper, regulate fixing feet length till two rotation pin all contact with paper, tighten stop nut, then draw circle.
Beneficial effect of the present invention is:
1, owing to using time, fixing feet is vertical with paper all the time, and user only need arrest compasses head and rotate, and does not need to drive compasses head to move in a circle, easy to operate.
2, owing to be located along the same line with vertical fixing feet all the time to the active force that compasses are downward when using and vertical with paper, and two to rotate the distance that pin separates identical, make whole compasses be in poised state, the situations such as not easily generation picture is askew.
figure of description
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
Embodiment
As shown in Figure 1, the Three point compass of the present embodiment, comprise compasses head 1, fixing feet 2 and rotate pin 3, rotate pin 3 and be provided with two, one end of fixing feet 2 is fixed on compasses head 1, and two are rotated pin 3 and lay respectively at fixing feet 2 both sides and be positioned at same plane with fixing feet 2, and two one end of rotating pin 3 are hinged on compasses head 1 respectively, fixing feet 2 is scalable and be provided with stopping means, and two other ends rotating pin 3 are equipped with lead for retractable pencil 31.
Fixing feet 2 is divided into top and bottom two parts, top hollow, and lower end thereof is plugged in top, and lower end, top is provided with stop nut 21.Rotate pin 3 other end and be provided with clip, clip side is provided with binding nut 32, and lead for retractable pencil 31 is folded on clip.Compasses head 1 and fixing feet 2 are located along the same line.
A kind of Three point compass of the present invention is not limited to the various embodiments described above, and all employings are equal to the technical scheme of replacing and being formed, and all drop on the protection domain of application claims.
Claims (4)
1. a Three point compass, comprise compasses head, fixing feet and rotation pin, it is characterized in that: described rotation pin is provided with two, one end of described fixing feet is fixed on compasses head, described two rotation pin lay respectively at fixing feet both sides and are positioned at same plane with described fixing feet, described two are rotated one end of pin and are hinged on respectively on compasses head, and described fixing feet is scalable and be provided with stopping means, and described two other ends rotating pin are equipped with lead for retractable pencil.
2. Three point compass according to claim 1, it is characterized in that: described fixing feet is divided into top and bottom two parts, described top hollow, described lower end thereof is plugged in top, and lower end, described top is provided with stop nut.
3. Three point compass according to claim 1, is characterized in that: the described rotation pin other end is provided with clip, and described clip side is provided with binding nut, and described lead for retractable pencil is folded on clip.
4. Three point compass according to claim 1, is characterized in that: described compasses head and fixing feet are located along the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912586.3A CN105479988A (en) | 2015-12-11 | 2015-12-11 | Three-legged compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912586.3A CN105479988A (en) | 2015-12-11 | 2015-12-11 | Three-legged compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105479988A true CN105479988A (en) | 2016-04-13 |
Family
ID=55667407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510912586.3A Pending CN105479988A (en) | 2015-12-11 | 2015-12-11 | Three-legged compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105479988A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1733270A1 (en) * | 1990-01-09 | 1992-05-15 | Пензенский Политехнический Институт | Measuring compasses |
| CN201154623Y (en) * | 2008-01-31 | 2008-11-26 | 陈彩霞 | Adjustable compasses |
| CN201161506Y (en) * | 2008-02-15 | 2008-12-10 | 陈泽 | Three-foot compasses |
| CN201516767U (en) * | 2009-09-24 | 2010-06-30 | 朱有权 | Compasses dedicated for teaching |
| CN201816351U (en) * | 2010-10-22 | 2011-05-04 | 李沂臻 | Three-legged compasses |
| CN102452261A (en) * | 2010-10-18 | 2012-05-16 | 王岱绪 | Adjustable compasses |
| CN202319542U (en) * | 2011-10-31 | 2012-07-11 | 山东科技大学 | Triangular compasses |
| CN202507778U (en) * | 2012-01-12 | 2012-10-31 | 王跃霖 | Three-foot compass |
| CN202896061U (en) * | 2012-08-06 | 2013-04-24 | 李彬 | Multi-point compass |
| CN204687650U (en) * | 2015-05-04 | 2015-10-07 | 邓恺玥 | A kind of novel bow compass of collision bead type telescopic legs |
-
2015
- 2015-12-11 CN CN201510912586.3A patent/CN105479988A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1733270A1 (en) * | 1990-01-09 | 1992-05-15 | Пензенский Политехнический Институт | Measuring compasses |
| CN201154623Y (en) * | 2008-01-31 | 2008-11-26 | 陈彩霞 | Adjustable compasses |
| CN201161506Y (en) * | 2008-02-15 | 2008-12-10 | 陈泽 | Three-foot compasses |
| CN201516767U (en) * | 2009-09-24 | 2010-06-30 | 朱有权 | Compasses dedicated for teaching |
| CN102452261A (en) * | 2010-10-18 | 2012-05-16 | 王岱绪 | Adjustable compasses |
| CN201816351U (en) * | 2010-10-22 | 2011-05-04 | 李沂臻 | Three-legged compasses |
| CN202319542U (en) * | 2011-10-31 | 2012-07-11 | 山东科技大学 | Triangular compasses |
| CN202507778U (en) * | 2012-01-12 | 2012-10-31 | 王跃霖 | Three-foot compass |
| CN202896061U (en) * | 2012-08-06 | 2013-04-24 | 李彬 | Multi-point compass |
| CN204687650U (en) * | 2015-05-04 | 2015-10-07 | 邓恺玥 | A kind of novel bow compass of collision bead type telescopic legs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160413 |
|
| WD01 | Invention patent application deemed withdrawn after publication |