CN201231626Y - Multipurpose compasses - Google Patents
Multipurpose compasses Download PDFInfo
- Publication number
- CN201231626Y CN201231626Y CNU2008200246618U CN200820024661U CN201231626Y CN 201231626 Y CN201231626 Y CN 201231626Y CN U2008200246618 U CNU2008200246618 U CN U2008200246618U CN 200820024661 U CN200820024661 U CN 200820024661U CN 201231626 Y CN201231626 Y CN 201231626Y
- Authority
- CN
- China
- Prior art keywords
- compass
- compass leg
- expansion link
- locked
- rear end
- 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
Disclosed is a multi-purpose compass which comprises a compass base, a handle mounted on the compass base, a left compass leg and a right compass leg which are movably connected in the compass base. A positioning needle is fixedly connected with the lower part of the compass base. The left compass leg is shaped like a sleeve; a left telescopic rod is inserted in the left compass leg; the left telescopic rod is locked in the left compass leg through a locking screw. The rear end of the left telescopic rod is connected with a left drawing foot; the left drawing foot is locked on the rear end of the left telescopic rod through a locking nut. The right compass leg is shaped like a sleeve; a right telescopic rod is inserted in the right compass leg; the right telescopic rod is locked in the right compass leg through a locking screw; The rear end of the right telescopic rod is connected with a right drawing foot; the right drawing foot is locked on the rear end of the right telescopic rod through a locking nut. The multi-purpose compass not only can draw a single circle, but also can directly draw concentric circles, draw circles with bigger radiuses, have multiple functions and is convenient in application.
Description
Technical field
The utility model relates to a kind of compasses, relates in particular to a kind of concentrically ringed Napier's compasses that can directly draw.
Background technology
A fixedly picture pin is equipped with in the bottom of the moving rule leg of general compasses, once can only draw a circle, and the concentric circles that can not directly draw, it is not too convenient to use.
Summary of the invention
The purpose of this utility model provides a kind of single circle that not only can draw, and the concentrically ringed Napier's compasses that can directly draw.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of Napier's compasses comprise: Circinus, handle is housed above the Circinus, and be connected with left compass leg and right compass leg in the Circinus, it is characterized in that: the bottom of Circinus is fixedly connected with pilot pin; Described left compass leg is a sleeve shaped, is plugged with left expansion link in the left compass leg, and left expansion link is locked in the left compass leg by lock-screw; The rear end of left side expansion link is connected with a left side and draws pin, and pin is locked at left expansion link by locking nut rear end is drawn on a left side; Described right compass leg is a sleeve shaped, is plugged with right expansion link in the right compass leg, and right expansion link is locked in the right compass leg by lock-screw; The rear end of right expansion link is connected with the right pin of drawing, and right picture pin is locked at the rear end of right expansion link by locking nut.
The utility model single circle that not only can draw, and the concentric circles that can directly draw can also draw than the circle of long radius simultaneously, and function is many, easy to use.
Description of drawings
Figure is a structural representation of the present utility model.
In the accompanying drawing: 1, pin is drawn on a left side; 2, locking nut; 3, left expansion link; 4, lock-screw; 5, left compass leg; 6, Circinus; 7, handle; 8, right compass leg; 9, right expansion link; 10, the right pin of drawing; 11, pilot pin.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
A kind of Napier's compasses of the utility model comprise as shown in the figure: Circinus 6, handle 7 is housed above the Circinus 6, and be connected with left compass leg 5 and right compass leg 8 in the Circinus 6.The bottom of Circinus 6 is fixedly connected with pilot pin 11.Left side compass leg 5 is a sleeve shaped, is plugged with left expansion link 3 in the left compass leg 5, and left expansion link 3 is locked in the left compass leg 5 by lock-screw 4.The rear end of left side expansion link 3 is connected with a left side and draws pin 1, and pin 1 is locked at left expansion link 3 by locking nut 2 rear end is drawn on a left side.
Right compass leg 8 is a sleeve shaped, is plugged with right expansion link 9 in the right compass leg 8, and right expansion link 9 is locked in the right compass leg 8 by lock-screw.The rear end of right expansion link 9 is connected with the right pin 10 of drawing, and right picture pin 10 is locked at the rear end of right expansion link 9 by locking nut.
When the utility model uses, pilot pin 11 with Circinus 6 bottoms is the center of circle, left compass leg 5 and left expansion link 3 are adjusted to required radius, then right compass leg 8 and right expansion link 9 are adjusted to another required radius, so can directly draw concentric circles because two radius is different.
Pilot pin 11 with Circinus 6 bottoms is the center of circle, if a compass leg is lifted, can draw single circle with another compass leg.If the picture pin on the compass leg as the center of circle, is drawn circle with the picture pin on another compass leg, can draw than the circle of long radius so.
Claims (1)
1, a kind of Napier's compasses, comprise: Circinus (6), handle (7) is housed above the Circinus (6), is connected with left compass leg (5) and right compass leg (8) in the Circinus (6), it is characterized in that: the bottom of Circinus (6) is fixedly connected with pilot pin (11); Described left compass leg (5) is a sleeve shaped, is plugged with left expansion link (3) in the left compass leg (5), and left expansion link (3) is locked in the left compass leg (5) by lock-screw (4); The rear end of left side expansion link (3) is connected with a left side and draws pin (1), and pin (1) is locked at left expansion link (3) by locking nut (2) rear end is drawn on a left side; Described right compass leg (8) is a sleeve shaped, is plugged with right expansion link (9) in the right compass leg (8), and right expansion link (9) is locked in the right compass leg (8) by lock-screw; The rear end of right expansion link (9) is connected with the right pin (10) of drawing, and right picture pin (10) is locked at the rear end of right expansion link (9) by locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200246618U CN201231626Y (en) | 2008-06-26 | 2008-06-26 | Multipurpose compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200246618U CN201231626Y (en) | 2008-06-26 | 2008-06-26 | Multipurpose compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201231626Y true CN201231626Y (en) | 2009-05-06 |
Family
ID=40618003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200246618U Expired - Fee Related CN201231626Y (en) | 2008-06-26 | 2008-06-26 | Multipurpose compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201231626Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442130A (en) * | 2011-10-22 | 2012-05-09 | 奇瑞汽车股份有限公司 | Graph plotter for plotting circles |
-
2008
- 2008-06-26 CN CNU2008200246618U patent/CN201231626Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442130A (en) * | 2011-10-22 | 2012-05-09 | 奇瑞汽车股份有限公司 | Graph plotter for plotting circles |
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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: 20090506 |