CN202711584U - Indicating globe for meridian and parallel division of the earth - Google Patents
Indicating globe for meridian and parallel division of the earth Download PDFInfo
- Publication number
- CN202711584U CN202711584U CN 201220249481 CN201220249481U CN202711584U CN 202711584 U CN202711584 U CN 202711584U CN 201220249481 CN201220249481 CN 201220249481 CN 201220249481 U CN201220249481 U CN 201220249481U CN 202711584 U CN202711584 U CN 202711584U
- Authority
- CN
- China
- Prior art keywords
- globe
- indicating
- meridian
- earth
- protractor
- 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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- Instructional Devices (AREA)
Abstract
The utility model relates to an indicating globe for meridian and parallel division of the earth. The indicating globe comprises a globe which is provided with two perpendicular 360 degrees protractors. Original points of the two protractors are overlapped with a sphere center of the globe, wherein a zero degree line of a protractor aligns with an equatorial plane of the globe, and a zero degree line of the other protractor aligns with a zero degree meridian of the globe. The indicating globe uses a globe model and two orthogonal protractors so that students can see a process of the earth's meridian and parallel division visually and objectively. The indicating globe provides great help for students to rapidly understand meridian and parallel division, and the indicating globe visually simulates the earth's meridian and parallel division so that students can understand origin of meridians and parallels. The indicating globe is simple in structure, convenient in manufacturing, and is visual and objective, and is convenient for the students to observe and learn.
Description
Technical field
The utility model relates to a kind of geographical classroom teaching mode, relates in particular to a kind of earth warp and weft and divides the signal instrument.
Background technology
Teacher's general method of drawing that adopts when lecturing the division of earth warp and weft is lectured now, but concerning the relatively poor student of three-dimensional thinking ability, in understanding and acceptance certain difficulty is arranged, understand origin and the division of warp and weft, not only affect part student's results of learning, also had influence on Classroom Teaching.
The utility model content
The utility model provides a kind of observation simple in structure, convenient, earth warp and weft easy to make to divide the signal instrument in order to overcome the above problems.
The technical solution of the utility model is: comprise a terrestrial globe, be provided with the protractor of two 360 degree that intersect vertically in the described terrestrial globe, the initial point of two protractors overlaps with the centre of sphere of terrestrial globe, and wherein 0 of protractor degree line is aimed at the equatorial plane of terrestrial globe; 0 degree line of another piece protractor is aimed at 0 degree warp of terrestrial globe.
The utility model utilizes terrestrial globe model and orthogonal two protractors, can image objectively allow the student find out the process that earth warp and weft is divided, the division of the student comparatively fast being understood warp and weft has good help, the division of the simulation earth warp and weft of image allows the student understand very soon the origin of warp and weft.The utility model is simple in structure, image is objective, easy to make, be convenient to observation of students study.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present utility model.
1 is terrestrial globe among the figure, the 2nd, and protractor one, 3rd, protractor two.
Embodiment
Earth warp and weft is divided the signal instrument, comprise a terrestrial globe 1, be provided with protractor 1 and the protractor 23 of two 360 degree that intersect vertically in the described terrestrial globe 1, the initial point of protractor 1 and protractor 23 overlaps with the centre of sphere of terrestrial globe 1, wherein 0 of protractor 1 degree line is aimed at the equatorial plane of terrestrial globe 1, equatorial plane top is that north latitude 0 is spent to 90 degree, and equatorial plane below is that south latitude 0 degree is to 90 degree; 0 degree line of protractor 23 is aimed at 0 degree warp of terrestrial globe 1, the first meridian namely, and from then on 180 degree are east longitude 180 eastwards, from then on westwards 180 degree are west longitude 180 degree.
Claims (1)
1. earth warp and weft is divided the signal instrument, it is characterized in that: comprise a terrestrial globe, be provided with the protractor of two 360 degree that intersect vertically in the described terrestrial globe, the initial point of two protractors overlaps with the centre of sphere of terrestrial globe, and wherein 0 of protractor degree line is aimed at the equatorial plane of terrestrial globe; 0 degree line of another piece protractor is aimed at 0 degree warp of terrestrial globe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249481 CN202711584U (en) | 2012-05-30 | 2012-05-30 | Indicating globe for meridian and parallel division of the earth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249481 CN202711584U (en) | 2012-05-30 | 2012-05-30 | Indicating globe for meridian and parallel division of the earth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202711584U true CN202711584U (en) | 2013-01-30 |
Family
ID=47591865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249481 Expired - Fee Related CN202711584U (en) | 2012-05-30 | 2012-05-30 | Indicating globe for meridian and parallel division of the earth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202711584U (en) |
-
2012
- 2012-05-30 CN CN 201220249481 patent/CN202711584U/en not_active Expired - Fee Related
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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: 20130130 Termination date: 20130530 |