CN203410211U - Compass - Google Patents
Compass Download PDFInfo
- Publication number
- CN203410211U CN203410211U CN201320526239.3U CN201320526239U CN203410211U CN 203410211 U CN203410211 U CN 203410211U CN 201320526239 U CN201320526239 U CN 201320526239U CN 203410211 U CN203410211 U CN 203410211U
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- CN
- China
- Prior art keywords
- compasses
- compass
- angle
- pin
- carrying
- 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 compass. The compass comprises a rotary lifting part, two support legs, foot needles, a gasket and a connecting member, wherein the rotary lifting part, the two support legs and the gasket are connected through the connecting member, the foot needles are movably connected with the support legs, and the support legs are straight rulers marked with scales. The compass is simple in structure, not only reduces errors caused when the compass is used for drawing, but also solves an angle measurement problem, and reduces the errors caused when an angle gauge is singly utilized for measuring the angle.
Description
Technical field
The utility model belongs to study stationery field, and concrete is a kind of compasses.
Background technology
Compasses are student's requisite study articles in learning process, there are on the market now a variety of compasses, their purposes is except drawing circle, also have the purposes such as picture straight line, still, generally we are using compasses to draw bowlder, need first to determine distance between two pin of compasses as radius of a circle with ruler, start picture circle, the circular error drawing is like this larger, may affect student's study schedule again; Ruler is separately put and is found sometimes trouble and easily lose.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of compasses, and the error while reducing to use drawing for compasses also has the purposes of ruler simultaneously.
For solving the problems of the technologies described above, the utility model provides a kind of compasses, comprises the portion of carrying of revolving, two supporting legs, pin pin, pad and connectors, described revolves the portion of carrying, two supporting legs are connected by connector with pad, pin pin is flexibly connected with supporting leg, and described supporting leg is the graduated ruler of mark.
Described a kind of compasses also comprise protractor, described protractor by connector with revolve the portion of carrying and be connected with supporting leg, student is when use amount hornwork takes measurement of an angle, the length of two rays at angle sometimes can be very short, needs to draw in addition error and the trouble that extended line brings while just having avoided taking measurement of an angle by two supporting legs of use compasses.
Described connector is screw and nut, by adjustment screw and nut, realizes opening with fixing of compasses.
The scale of two described supporting legs is reverse setting, can multiangular measurement length.
The utility model is simple in structure, and the error having produced while not only having reduced to draw because of compasses has also solved the problem taking measurement of an angle and reduced the error that simple use amount hornwork takes measurement of an angle.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to accompanying drawing, a kind of compasses, comprise the portion of carrying 1 of revolving, two supporting legs 2, pin pin 3, pad 5 and connectors 4, described revolve the portion of carrying, two supporting legs are connected by connector with pad, and pin pin is flexibly connected with supporting leg, and described supporting leg is the graduated ruler of mark.
Described a kind of compasses also comprise protractor 6, described protractor by connector with revolve the portion of carrying and be connected with supporting leg, student is when use amount hornwork takes measurement of an angle, the length of two rays at angle sometimes can be very short, needs to draw in addition error and the trouble that extended line brings while just having avoided taking measurement of an angle by two supporting legs of use compasses.
Described connector is screw and nut, by adjustment screw and nut, realizes opening with fixing of compasses.
The scale of two described supporting legs is reverse setting, can multiangular measurement length.
The utility model is simple in structure, and the error having produced while not only having reduced to draw because of compasses has also solved the problem taking measurement of an angle and reduced the error that simple use amount hornwork takes measurement of an angle.
Claims (4)
1. compasses, comprise the portion of carrying of revolving, two supporting legs, pin pin, pad and connectors, it is characterized in that described revolving the portion of carrying, two supporting legs are connected by connector with pad, and pin pin is flexibly connected with supporting leg, and described supporting leg is to mark graduated ruler.
2. a kind of compasses according to claim 1, is characterized in that it also comprises protractor, described protractor by connector with revolve the portion of carrying and be connected with supporting leg.
3. a kind of compasses according to claim 1 and 2, is characterized in that described connector is screw and nut, by adjustment screw and nut, realize opening with fixing of compasses.
4. a kind of compasses according to claim 1, is characterized in that the scale of two described supporting legs is reverse setting, can multiangular measurement length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526239.3U CN203410211U (en) | 2013-08-28 | 2013-08-28 | Compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526239.3U CN203410211U (en) | 2013-08-28 | 2013-08-28 | Compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203410211U true CN203410211U (en) | 2014-01-29 |
Family
ID=49973133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320526239.3U Expired - Fee Related CN203410211U (en) | 2013-08-28 | 2013-08-28 | Compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203410211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626827A (en) * | 2015-02-06 | 2015-05-20 | 黄利辉 | Magnetic multifunctional geometry teaching aid |
| CN108749415A (en) * | 2018-05-28 | 2018-11-06 | 喻正江 | A kind of novel high-precision compasses for teaching |
-
2013
- 2013-08-28 CN CN201320526239.3U patent/CN203410211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626827A (en) * | 2015-02-06 | 2015-05-20 | 黄利辉 | Magnetic multifunctional geometry teaching aid |
| CN108749415A (en) * | 2018-05-28 | 2018-11-06 | 喻正江 | A kind of novel high-precision compasses for teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20140828 |
|
| EXPY | Termination of patent right or utility model |