CN201910195U - Earth revolution demonstrator - Google Patents
Earth revolution demonstrator Download PDFInfo
- Publication number
- CN201910195U CN201910195U CN2011200136889U CN201120013688U CN201910195U CN 201910195 U CN201910195 U CN 201910195U CN 2011200136889 U CN2011200136889 U CN 2011200136889U CN 201120013688 U CN201120013688 U CN 201120013688U CN 201910195 U CN201910195 U CN 201910195U
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- earth
- revolution
- demonstrator
- demonstration board
- model
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Abstract
The utility model discloses an earth revolution demonstrator, which comprises a base, a support column, a demonstration plate and a solar model. The support column is fixed onto the base; the demonstration plate fixed onto the support column is a transparent oval plate; and the solar model is fixed to the center of the demonstration plate. The earth revolution demonstrator is capable of simulating revolution of the earth in an extremely vivid and visual mode, thereby facilitating understanding of students and improving teaching effect and progress. Moreover, the demonstrator is simple in structure, needs no earth model by the aid of a terrestrial globe commonly used in geography teaching in demonstration, and accordingly is low in cost.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of revolution of earth demonstrator.
Background technology
At present, in the geographical teaching process, it is clear to only depend on picture on the textbook to be difficult to student explain about the revolution of earth principle, and the student can not well understand revolution of earth, has a strong impact on teaching efficiency.
Summary of the invention
Problem to be solved in the utility model is: a kind of revolution of earth demonstrator simple in structure is provided, can makes the various geographical phenomenons of the revolution and the generation thereof of student's direct feel earth.
For addressing the above problem, the utility model comprises base, pillar, demonstration board and solar model, and pillar is fixed on the base, and demonstration board is fixed on the pillar, and demonstration board is transparent oval disk body, and solar model is fixed on the center of demonstration board.
In order to make the rotation direction of terrestrial globe accurate when demonstrating, described demonstration board is provided with and the coaxial similar elliptical path line of demonstration board outer contour, and trajectory is provided with the arrow of counterclockwise indication.During demonstration, the direction of taking a terrestrial globe to press arrow is rotated.
Subsolar point position on earth is equipped with a projection on four summits of described trajectory when making the student know the Spring Equinox, the Summer Solstice, the Autumnal Equinox, Winter Solstice.
The beneficial effects of the utility model: the utility model can simulate the revolution motion of the earth, and very visual in image, being convenient to the student understands, teaching efficiency and progress have been improved, and this demonstrator structure is simple, use terrestrial globe commonly used in the geographical teaching during demonstration, do not need earth model, cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1, demonstration board, 2, trajectory, 3, projection, 4, arrow, 5, solar model, 6, pillar, 7, base.
Embodiment
A kind of specific embodiment as shown in Figure 1, it comprises base 7, pillar 6, demonstration board 1 and solar model 5, and pillar 6 is fixed on the base 7, and demonstration board 1 is fixed on the pillar 6, and demonstration board 1 is transparent oval disk body, solar model 5 is fixed on the center of demonstration board 1.Demonstration board 1 is provided with and the coaxial similar elliptical path line 2 of the outer contour of demonstration board 1, and trajectory 2 is provided with the arrow 4 of counterclockwise indication.Be equipped with a projection 3 on four summits of trajectory 2.
The projection 3 that is positioned at the major axis end is represented the Summer Solstice and Winter Solstice, and the projection 3 that is positioned at the minor axis end is represented the Autumnal Equinox and the Spring Equinox.
Demenstration method: demonstrator is placed on the desktop, get a terrestrial globe, terrestrial globe is rotated around the outer contour of demonstration board 1 on the table, and the earth is at the position and the subsolar point recurrent mutation on earth of revolution orbit when making students ' understanding Spring Equinox, the Summer Solstice, the Autumnal Equinox, Winter Solstice.
Claims (3)
1. revolution of earth demonstrator, it is characterized in that: comprise base, pillar, demonstration board and solar model, pillar is fixed on the base, and demonstration board is fixed on the pillar, and demonstration board is transparent oval disk body, and solar model is fixed on the center of demonstration board.
2. revolution of earth demonstrator according to claim 1 is characterized in that: described demonstration board is provided with and the coaxial similar elliptical path line of demonstration board outer contour, and trajectory is provided with the arrow of counterclockwise indication.
3. revolution of earth demonstrator according to claim 2 is characterized in that: be equipped with a projection on four summits of described trajectory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200136889U CN201910195U (en) | 2011-01-18 | 2011-01-18 | Earth revolution demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200136889U CN201910195U (en) | 2011-01-18 | 2011-01-18 | Earth revolution demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201910195U true CN201910195U (en) | 2011-07-27 |
Family
ID=44302395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200136889U Expired - Fee Related CN201910195U (en) | 2011-01-18 | 2011-01-18 | Earth revolution demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201910195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855808A (en) * | 2012-09-14 | 2013-01-02 | 廖云开 | Earth four-season model for solar year |
-
2011
- 2011-01-18 CN CN2011200136889U patent/CN201910195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855808A (en) * | 2012-09-14 | 2013-01-02 | 廖云开 | Earth four-season model for solar year |
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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: 20110727 Termination date: 20120118 |