CN201989507U - Convenient compass - Google Patents
Convenient compass Download PDFInfo
- Publication number
- CN201989507U CN201989507U CN2011200070148U CN201120007014U CN201989507U CN 201989507 U CN201989507 U CN 201989507U CN 2011200070148 U CN2011200070148 U CN 2011200070148U CN 201120007014 U CN201120007014 U CN 201120007014U CN 201989507 U CN201989507 U CN 201989507U
- Authority
- CN
- China
- Prior art keywords
- fixed bar
- swingle
- bar
- convenient
- revolving
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a convenient compass, which comprises a fixed bar and a revolving bar, wherein the bottom end of the fixed bar is provided with a fixed pin; the bottom end of the revolving bar is sheathed with a lead; the fixed bar and the revolving bar are in swing joint at the top end; the extending end of a revolving shaft is sheathed at the position of the centre of a circle of a semicircular protractor; and the surface of the fixed bar and the surface of the revolving bar are respectively provided with length scales. The utility model has the advantages that the convenient compass is novel and practical, can be used as a ruler and is convenient for measuring angles and describing circles and the like.
Description
Technical field the utility model relates to a kind of schooling apparatus.
The modern student's learning tasks of background technology are heavier, basic measurement and drawing are one of required courses, for aided drawing, need to use survey tool, angulation instrument, circle tool etc., but because the storage area of writing case is limited, it is very inconvenient to carry multiple instrument.
The summary of the invention the purpose of this utility model has provided a kind of ruler that can be used as and has used, and is convenient for measuring angle and draws round Convenient compasses.
A kind of Convenient compasses of the utility model, comprise fixed bar and swingle, the fixed bar bottom is provided with locking pin, swingle bottom socket lead for retractable pencil, rotating shaft is connected fixed bar on the top with swingle, the rotating shaft external part is socketed in the circle centre position of semicircle protractor, and fixed bar and swingle surface are equipped with the length scale.
After adopting said structure, people can turn to same straight line with swingle and fixed bar, utilize the scale on it to measure, play the effect of ruler, the initial point of protractor is placed on the summit at angle, swingle and fixed bar are overlapped with the both sides at angle respectively, can measure angle, people also can hold the top of fixed bar, adjust swingle and draw circular.
The utility model has the advantages that: Nover practical, can be used as ruler and use, be convenient for measuring angle and draw advantages such as round.
Description of drawings Fig. 1 is a stereochemical structure sketch of the present utility model.
The specific embodiment as shown in Figure 1, the utility model comprises fixed bar 1 and swingle 2, fixed bar 1 bottom is provided with locking pin, swingle 2 bottom socket lead for retractable pencils, rotating shaft is connected fixed bar 1 on the top with swingle 2, the rotating shaft external part is socketed in the circle centre position of semicircle protractor 3, and fixed bar 1 is equipped with length scale 4 with swingle 2 surfaces.
Claims (1)
1. Convenient compasses, comprise fixed bar (1) and swingle (2), it is characterized in that: fixed bar (1) bottom is provided with locking pin, swingle (2) bottom socket lead for retractable pencil, rotating shaft is connected fixed bar (1) on the top with swingle (2), the rotating shaft external part is socketed in the circle centre position of semicircle protractor (3), and fixed bar (1) is equipped with length scale (4) with swingle (2) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200070148U CN201989507U (en) | 2011-01-12 | 2011-01-12 | Convenient compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200070148U CN201989507U (en) | 2011-01-12 | 2011-01-12 | Convenient compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201989507U true CN201989507U (en) | 2011-09-28 |
Family
ID=44666006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200070148U Expired - Fee Related CN201989507U (en) | 2011-01-12 | 2011-01-12 | Convenient compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201989507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584262A (en) * | 2014-10-24 | 2016-05-18 | 石才 | Multi-functional mathematics plotting tool |
-
2011
- 2011-01-12 CN CN2011200070148U patent/CN201989507U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584262A (en) * | 2014-10-24 | 2016-05-18 | 石才 | Multi-functional mathematics plotting tool |
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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: 20110928 Termination date: 20120112 |