CN201600828U - Teaching demonstrator of length of day and night - Google Patents
Teaching demonstrator of length of day and night Download PDFInfo
- Publication number
- CN201600828U CN201600828U CN2010201172924U CN201020117292U CN201600828U CN 201600828 U CN201600828 U CN 201600828U CN 2010201172924 U CN2010201172924 U CN 2010201172924U CN 201020117292 U CN201020117292 U CN 201020117292U CN 201600828 U CN201600828 U CN 201600828U
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- CN
- China
- Prior art keywords
- length
- teaching
- day
- night
- light bulb
- 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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- Walking Sticks, Umbrellas, And Fans (AREA)
Abstract
The utility model discloses a teaching demonstrator of length of day and night, which belongs to geography teaching appliances. The technical scheme realizing the teaching demonstrator of length of day and night includes that a support rod is arranged on a base, a projecting shaft is arranged in the middle of the support rod, an earth side-view map board is arranged on the projecting shaft, and a transparent distribution side-view map board of a night hemisphere and a day hemisphere is arranged on the outer face of the earth side-view map board. A transverse rod is arranged on the top of the support rod, a light bulb holder is slantingly disposed inside the end portion of the transverse rod, a light bulb and a switch are arranged on the light bulb holder, and a battery is disposed inside the light bulb holder. The teaching demonstrator has the advantages of simple structure, convenient utilization and simple and convenient demonstration operation.
Description
Technical field:
The utility model belongs to geographical teaching instrument articles for use, particularly length demonstration instrument for teaching round the clock.
Background technology:
At present, in the teaching of geography, because some content is more abstract, the sun that causes such as revolution of earth is to the variation of point of vertical, whole world length round the clock just is not difficult to grasp, understand to knowledge owing to demonstrate the student rationally, intuitively along with changing this knowledge point regularly in latitude and season yet.
The utility model content:
The utility model overcomes the weak point of the problems referred to above, and a kind of demonstration instrument for teaching of length round the clock is provided, and length demonstration instrument for teaching is simple in structure round the clock for this, and is practical, simple to operate, can help the student to understand effectively and grasps the earth rule that changes of length round the clock.This round the clock the length demonstration instrument for teaching be achieved in that and on base, be provided with pole, be provided with protruding axle in the centre position of pole, on protruding axle, be provided with earth side view chart board, be provided with the transparent distribution of hemisphere round the clock side view chart board in the outside of earth side view chart board; Top pole is provided with cross bar, is provided with tube face in the end of cross bar is oblique, and tube face is provided with bulb and switch, and the inside of tube face is provided with battery.
The utility model is simple in structure, easy to use, demonstrate easy and simple to handle, open bulb during use, earth side view chart board is motionless, rotates the side view of hemisphere distribution round the clock chart board, bulb is moved around between the tropic of Cancer and the tropic of Capricorn, in the process of rotation,, closely observe the whole world variation of length round the clock according to the variation of day arc, night arc.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model; 1, cross bar 2, bulb 3, tube face 4, switch 5, earth side view chart board 6, protruding axle 7, the side view of hemisphere distribution round the clock chart board 8, pole 9, base
Embodiment:
1 embodiment is in conjunction with the accompanying drawings; Length demonstration instrument for teaching round the clock, be achieved in that and on base 9, be provided with pole 8, be provided with protruding axle 6 in the centre position of pole 8, on protruding axle 6, be provided with earth side view chart board 5, be provided with the transparent distribution of hemisphere round the clock side view chart board 7 in the outside of earth side view chart board 5; Be provided with cross bar 1 at the top of pole 8, be provided with tube face 3 in the end of cross bar 1 is oblique, tube face 3 is provided with bulb 2 and switch 4, and the inside of tube face 3 is provided with battery.
Claims (1)
1. length demonstration instrument for teaching round the clock, on base (9), be provided with pole (8), be provided with protruding axle (6) in the centre position of pole (8), it is characterized in that: on protruding axle (6), be provided with earth side view chart board (5), be provided with the transparent distribution of hemisphere round the clock side view chart board (7) in the outside of earth side view chart board (5); Be provided with cross bar (1) at the top of pole (8), be provided with tube face (3) in the end of cross bar (1) is oblique, tube face (3) is provided with bulb (2) and switch (4), and the inside of tube face (3) is provided with battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201172924U CN201600828U (en) | 2010-02-12 | 2010-02-12 | Teaching demonstrator of length of day and night |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201172924U CN201600828U (en) | 2010-02-12 | 2010-02-12 | Teaching demonstrator of length of day and night |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201600828U true CN201600828U (en) | 2010-10-06 |
Family
ID=42811891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201172924U Expired - Fee Related CN201600828U (en) | 2010-02-12 | 2010-02-12 | Teaching demonstrator of length of day and night |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201600828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608984A (en) * | 2016-02-29 | 2016-05-25 | 西安科技大学 | Device and method for Gauss-Kruger map projection demonstration |
-
2010
- 2010-02-12 CN CN2010201172924U patent/CN201600828U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608984A (en) * | 2016-02-29 | 2016-05-25 | 西安科技大学 | Device and method for Gauss-Kruger map projection demonstration |
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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: 20101006 Termination date: 20110212 |