CN202192911U - Pair of safe and portable compasses - Google Patents
Pair of safe and portable compasses Download PDFInfo
- Publication number
- CN202192911U CN202192911U CN2011202985071U CN201120298507U CN202192911U CN 202192911 U CN202192911 U CN 202192911U CN 2011202985071 U CN2011202985071 U CN 2011202985071U CN 201120298507 U CN201120298507 U CN 201120298507U CN 202192911 U CN202192911 U CN 202192911U
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- CN
- China
- Prior art keywords
- safe
- pair
- compasses
- portable
- portable compasses
- 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 discloses a study article for daily use, and particularly discloses a pair of safe and portable compasses. The pair of safe and portable compasses comprises a rotating arm and a supporting arm which are connected with each other, and is characterized in that the bottom end of the supporting arm is connected with a base of a magnet by a roll ball, a groove is arranged on one side of the base of the magnet, and a round iron plate is arranged at the bottom end of the base of the magnet, and provided with a locating hole for the center of a circle. For the pair of safe and portable compasses, the structure is simple, and the previous needle point structure is cancelled, so that the pair of safe and portable compasses is safer to use and convenient to carry, and wound caused by puncturing can be prevented; in addition, the pair of safe and portable compasses is more stable and reliable during drawing, can improve the quality of a drawn circle, and is convenient for students to study.
Description
(1) technical field
The utility model relates to a kind of daily study article, particularly a kind of safe and portable compasses.
(2) background technology
The compasses of student's use now all are that a kind of needle-like strong point is inserted into done circle on the paper; Because needle point is very sharp-pointed, stab easily, and because trace is arranged on paper; The special center of circle more for a long time; Can scratch paper, and when harder or level and smooth desktop upper drawing circle, be difficult for fixing, make troubles to the student.
(3) summary of the invention
The utility model provides a kind of safe in utilization, stable, portable safe and portable compasses of picture circle in order to remedy the defective of prior art.
The utility model is realized through following technical scheme:
A kind of safe and portable compasses; Comprise the turning arm and the support arm that are connected, it is characterized in that: the bottom of support arm is connected with the magnet base through ball, and magnet base one side is provided with groove; Magnet base bottom is provided with round iron plate, and round iron plate is provided with center of circle locating hole.
The beneficial effect of the utility model is: these safe and portable compasses, and simple in structure, cancelled needle point structure in the past, safer during use, and be easy to carry, can prevent to stab, more reliable and more stable when drawing, can improve picture circle quality, be beneficial to student's study.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is the structural representation of the utility model safe and portable compasses.
Among the figure, 1 turning arm, 2 support arms, 3 balls, 4 magnet bases, 5 grooves, 6 round iron plates.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the utility model.These safe and portable compasses; Comprise the turning arm 1 and support arm 2 that are connected, it is characterized in that: the bottom of support arm 2 is connected with magnet base 4 through ball 3, and magnet base 4 one sides are provided with groove 5; Magnet base 4 bottoms are provided with round iron plate 6, and round iron plate 6 is provided with center of circle locating hole.
These safe and portable compasses in use, find the center of circle of drawn circle earlier through the center of circle locating hole on the round iron plate 6; Then magnet base 4 is adsorbed with round iron plate 6 mutually and fix, can carry out the picture circle through turning arm 1 then, during fabrication; Smooth around the round iron plate 6, prevent to scratch hand, the bottom surface is coarse; Can increase frictional force, can be more stable fixedly the time.When not using, can also support arm 2 be folded in the groove 5, be convenient to deposit and carry.
Claims (1)
1. safe and portable compasses; Comprise the turning arm (1) and the support arm (2) that are connected; It is characterized in that: the bottom of support arm (2) is connected with magnet base (4) through ball (3); Magnet base (4) one sides are provided with groove (5), and magnet base (4) bottom is provided with round iron plate (6), and round iron plate (6) is provided with center of circle locating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202985071U CN202192911U (en) | 2011-08-17 | 2011-08-17 | Pair of safe and portable compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202985071U CN202192911U (en) | 2011-08-17 | 2011-08-17 | Pair of safe and portable compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202192911U true CN202192911U (en) | 2012-04-18 |
Family
ID=45947840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202985071U Expired - Fee Related CN202192911U (en) | 2011-08-17 | 2011-08-17 | Pair of safe and portable compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202192911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251755A (en) * | 2018-10-26 | 2020-06-09 | 刘小亮 | Teaching compass ruler and use method thereof |
-
2011
- 2011-08-17 CN CN2011202985071U patent/CN202192911U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251755A (en) * | 2018-10-26 | 2020-06-09 | 刘小亮 | Teaching compass ruler and use method thereof |
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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: 20120418 Termination date: 20120817 |