CN201224271Y - Multifunctional compasses - Google Patents
Multifunctional compasses Download PDFInfo
- Publication number
- CN201224271Y CN201224271Y CNU2008200675810U CN200820067581U CN201224271Y CN 201224271 Y CN201224271 Y CN 201224271Y CN U2008200675810 U CNU2008200675810 U CN U2008200675810U CN 200820067581 U CN200820067581 U CN 200820067581U CN 201224271 Y CN201224271 Y CN 201224271Y
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- CN
- China
- Prior art keywords
- radius
- chi
- built
- compasses
- measured
- 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
A multifunctional compass is disclosed and is characterized in that: the compasses comprises a main compass, a fixing beam, a flexible ruler, an arc-shaped radius-measuring ruler and an angle measuring ruler; the fixing beam is arranged at the upper end of the main compass; the flexible ruler, the radius-measuring ruler and an angle measuring ruler are all arranged on the fixing beam; and the radius-measuring ruler and an angle measuring ruler are positioned below the front of the compresses. The multifunctional compass can not only accurately measure the circle radius and the sector degree, but also can save the time in the process of learning and testing, so as to improve the learning efficiency.
Description
Technical field
The utility model relates to a kind of compasses, belongs to a kind of daily schooling apparatus.
Background technology
Present compasses can not directly accurately be measured radius of a circle and fan-shaped reading thereof, need measure with ruler and protractor, and that so not only measures is not accurate enough, but also has delayed student's learning time, has reduced learning efficiency.
Summary of the invention
The utility model provides a kind of multifunctional compass at above-mentioned existing problems, and it can measure radius of a circle and fan-shaped reading accurately, saves the time of student in study and examination, improves learning efficiency.
The technical solution of the utility model is: a kind of multifunctional compass, it is characterized in that: the radius that comprises main compasses, built-in beam, shrinkage-rule, circular arc measures chi and angle is measured chi, main compasses upper end is a built-in beam, shrinkage-rule, radius are measured chi and angle and are measured chi and all be contained on the built-in beam, and radius measures chi and angle is measured the positive front lower place that chi is positioned at compasses.
Aforesaid multifunctional compass is characterized in that: shrinkage-rule and built-in beam are for tangling, and be rotatable parallel with built-in beam.
Beneficial effect is: 1, can measure radius of a circle and fan-shaped reading accurately, 2, can save the student study and the examination in time, improve learning efficiency.
Description of drawings
Fig. 1, the structural representation of the utility model embodiment.
The specific embodiment
Below in conjunction with embodiment the utility model is described further.Each member title is as follows in the accompanying drawing 1: 1-master's compasses, 2-built-in beam, 3-shrinkage-rule, 4-radius are measured chi, the 5-angle is measured chi.
Referring to Fig. 1, the multifunctional compass of the utility model embodiment, it comprises that main compasses 1, built-in beam 2, shrinkage-rule 3, radius are measured chi 4 and angle is measured chi 5.There is individual built-in beam 2 main compasses 1 upper end, shrinkage-rule 3, radius are measured chi 4 and angle and are measured chi 5 and all be contained on the built-in beam 2, radius measures chi 4 and angle is measured the positive front lower place that chi 5 is contained in main compasses 1, shrinkage-rule 3 is rotatable parallel with built-in beam 2, obsolete the time, just conveniently accept, saved and take up space.In student's study and examination, the required radius of a circle of can measuring intuitively or draw, and the fan-shaped central angle that draws of measuring, measure the length of drawn arc, so not only very accurate, also save the time of student in study and examination, improve learning efficiency.
Claims (2)
1, a kind of multifunctional compass, it is characterized in that: the radius that comprises main compasses, built-in beam, shrinkage-rule, circular arc measures chi and angle is measured chi, main compasses upper end is a built-in beam, shrinkage-rule, radius are measured chi and angle and are measured chi and all be contained on the built-in beam, and radius measures chi and angle is measured the positive front lower place that chi is positioned at compasses.
2, multifunctional compass as claimed in claim 1 is characterized in that: shrinkage-rule and built-in beam are for tangling, and be rotatable parallel with built-in beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200675810U CN201224271Y (en) | 2008-06-03 | 2008-06-03 | Multifunctional compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200675810U CN201224271Y (en) | 2008-06-03 | 2008-06-03 | Multifunctional compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201224271Y true CN201224271Y (en) | 2009-04-22 |
Family
ID=40597150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200675810U Expired - Fee Related CN201224271Y (en) | 2008-06-03 | 2008-06-03 | Multifunctional compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201224271Y (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 |
-
2008
- 2008-06-03 CN CNU2008200675810U patent/CN201224271Y/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: 20090422 |