CN213070351U - Demonstration globe - Google Patents
Demonstration globe Download PDFInfo
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- CN213070351U CN213070351U CN202022113295.7U CN202022113295U CN213070351U CN 213070351 U CN213070351 U CN 213070351U CN 202022113295 U CN202022113295 U CN 202022113295U CN 213070351 U CN213070351 U CN 213070351U
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- light
- circular plate
- rotating shaft
- globe
- earth model
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Abstract
The utility model discloses a demonstration globe, which comprises a base, wherein the middle part of the base is provided with a stand column, the stand column is provided with a circular arc-shaped shaft bracket, the shaft bracket is provided with a forward-inclined rotating shaft, and the rotating shaft is sleeved with a hollow light-transmitting earth model which can rotate around the rotating shaft; a first vertical light-tight circular plate penetrating through the center line of the rotating shaft is arranged on the rotating shaft, the circle center of the first vertical light-tight circular plate is superposed with the sphere center of the light-transmitting earth model, and the diameter of the first vertical light-tight circular plate is smaller than that of the inner surface of the light-transmitting earth model; a second vertical light-tight circular plate perpendicular to the first vertical light-tight circular plate is further arranged on the rotating shaft, the circle center of the second vertical light-tight circular plate is overlapped with the sphere center of the light-transmitting earth model, and the diameter of the second vertical light-tight circular plate is smaller than that of the inner surface of the light-transmitting earth model; the utility model discloses demonstration globe can be more directly perceived, vivid demonstration earth rotation, revolution phenomenon, and the observer of being convenient for understands the principle of changing round the clock and four seasons.
Description
Technical Field
The utility model relates to a teaching aid field, concretely relates to demonstration globe.
Background
The globe is commonly used for demonstrating natural phenomena such as day and night alternation, four-season exchange and the like in geography teaching. Because the common globe is adopted to demonstrate that a large-area parallel light source is not easy to find when the sun irradiates the earth. When a common light source is adopted, the instrument is close to the earth, is not parallel light, and illuminates not a complete hemisphere; when the globe is far away from the ground, although the light emitted by the common light source is approximate to parallel light, the illumination brightness is too weak, and the demonstration cannot be realized.
Disclosure of Invention
For solving the technical problem above, the utility model aims at providing a demonstration globe, can be directly perceived, vivid demonstration earth rotation, revolution phenomenon, the observer of being convenient for understands the principle of changing round the clock and four seasons.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A demonstration globe comprises a base, wherein an upright post is arranged in the middle of the base, a circular arc-shaped shaft bracket is arranged on the upright post, a forward-inclined rotating shaft is arranged on the shaft bracket, and a hollow light-transmitting earth model capable of rotating around the rotating shaft is sleeved on the rotating shaft; a first vertical light-tight circular plate penetrating through the center line of the rotating shaft is arranged on the rotating shaft, the circle center of the first vertical light-tight circular plate is superposed with the sphere center of the light-transmitting earth model, and the diameter of the first vertical light-tight circular plate is smaller than that of the inner surface of the light-transmitting earth model; a second vertical light-tight circular plate perpendicular to the first vertical light-tight circular plate is further arranged on the rotating shaft, the circle center of the second vertical light-tight circular plate is overlapped with the sphere center of the light-transmitting earth model, and the diameter of the second vertical light-tight circular plate is smaller than that of the inner surface of the light-transmitting earth model; the first vertical light-tight circular plate and the second vertical light-tight circular plate divide the inside of the light-transmitting earth model into four spaces, and each space is internally provided with an LED light source.
Further, an electric switch corresponding to each LED light source is arranged on the base.
Further, the rotation axis is at an angle of 66 ° 34' to the horizontal.
Further, the light-transmitting earth model comprises a spherical shell, and a map layer is arranged on the outer surface of the spherical shell.
Furthermore, the spherical shell is made of acrylic materials or PC materials.
Further, the map layer is printed with land patterns and sea patterns.
Furthermore, the map layer is printed with an equator, a north return line and a south return line.
Furthermore, a battery is arranged in the base, and the battery, the electric switch and the LED light source are connected through a lead; the rotating shaft is a hollow shaft, and the conducting wire penetrates through the rotating shaft.
Further, the upper surface of base has set gradually "summer solstice" sign, "fall mark," winter solstice "sign and" spring solstice "sign according to anticlockwise, and" summer solstice "sign is located the rotation axis under the first section.
The utility model discloses technical scheme for current globe, can be more directly perceived, vivid demonstration earth rotation, revolution phenomenon, the observer of being convenient for understands and changes round the clock and the principle of four seasons.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic perspective view of an embodiment of a globe of the present invention;
FIG. 2 is a schematic perspective view of an embodiment of the globe of the present invention with the light transmissive earth model removed;
FIG. 3 is a top view of an embodiment of the globe of the present invention with the light transmissive earth model removed;
FIG. 4 is a cross-sectional view of a light transmissive earth model demonstrating one embodiment of the globe of the present invention;
in the above figures:
1, a base; 2, upright posts; 3 a rotating shaft; 4 a light-transmitting earth model; 401 a spherical shell; 402 a map layer; 5 a first vertical opaque circular plate; 6 a second vertical opaque circular plate; 7LED light source; 8, an electric switch; 9 "summer solstice" designation; 10 "autumn mark"; 11 "winter solstice" designation; 12 "spring equinox" identification; 13 shaft bracket.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of other ways than those described herein, and those skilled in the art will be able to make similar generalizations without departing from the spirit of the invention. The invention is therefore not limited to the specific embodiments disclosed below.
The globe is a common teaching aid in geography teaching and is used for demonstrating natural phenomena such as day and night replacement, four-season exchange and the like. Because the common globe is adopted to demonstrate that a large-area parallel light source is not easy to find when the sun irradiates the earth. When a common light source is adopted, the instrument is close to the earth, is not parallel light, and illuminates not a complete hemisphere; when the globe is far away from the ground, although the light emitted by the common light source is approximate to parallel light, the illumination brightness is too weak, and the demonstration cannot be realized.
Referring to fig. 1 and 2, the demonstration globe comprises a base 1, wherein a vertical column 2 is arranged in the middle of the base 1, an arc-shaped shaft frame 13 is arranged on the vertical column 2, a forward-inclined rotating shaft 3 is arranged on the shaft frame 13, and a hollow light-transmitting earth model 4 capable of rotating around the rotating shaft 3 is sleeved on the rotating shaft 3; a first vertical light-tight circular plate 5 penetrating through the center line of the rotating shaft 3 is arranged on the rotating shaft 3, the circle center of the first vertical light-tight circular plate 5 is superposed with the sphere center of the light-transmitting earth model 4, and the diameter of the first vertical light-tight circular plate 5 is smaller than that of the inner surface of the light-transmitting earth model 4; a second vertical light-tight circular plate 6 perpendicular to the first vertical light-tight circular plate 5 is further arranged on the rotating shaft 3, the circle center of the second vertical light-tight circular plate 6 is overlapped with the sphere center of the light-transmitting earth model 4, and the diameter of the second vertical light-tight circular plate 6 is smaller than that of the inner surface of the light-transmitting earth model 4; the first vertical light-tight circular plate 5 and the second vertical light-tight circular plate 6 divide the inside of the light-transmitting earth model 4 into four spaces, and each space is internally provided with an LED light source 7. An electric switch 8 corresponding to each LED light source 7 is arranged on the base 1.
In the above embodiment, the first vertical opaque circular plate 5 and the second vertical opaque circular plate 6 which are perpendicular to each other are arranged inside the transparent earth model 4, the four spaces formed by the first vertical opaque circular plate 5 and the second vertical opaque circular plate 6 are respectively provided with the LED light source 7, the first vertical opaque circular plate 5 and the second vertical opaque circular plate 6 are made of opaque materials, the hollow transparent earth model 4 is made of transparent materials, the through holes control the on or off of the LEDs, and day and night replacement can be intuitively demonstrated. For example, when the LED light sources 7 in any two adjacent spaces are turned on simultaneously, the illuminated half transparent earth model 4 represents daytime, the dark half transparent earth model 4 represents darkness, and the counterclockwise rotation of the demonstration globe shows a complete day-night replacement phenomenon more intuitively and vividly. The demonstration globe is kept still, an observer moves anticlockwise around the demonstration globe, and the earth can be intuitively demonstrated to revolve around the sun. In practice, in order to prevent light leakage and at the same time ensure that the light-transmitting earth model 4 can smoothly rotate around the rotating shaft 3, the diameter of the first and second vertically opaque circular plates 5 and 6 is slightly smaller than the diameter of the inner surface of the light-transmitting earth model 4.
Further, for practical reasons, the rotation axis 3 is at an angle of 66 ° 34' to the horizontal. Further, the light-transmitting earth model 4 comprises a spherical shell 401, and a map layer 402 is arranged on the outer surface of the spherical shell 401.
Further, referring to fig. 4, the spherical shell 401 is made of an acrylic material or a PC material. The map layer 402 is printed with land patterns and sea patterns. Warp and weft threads are printed on the map layer 402.
In the above embodiment, the light-transmitting earth model 4 has two layers, the inner layer is made of a light-transmitting material such as acrylic or PC, the outer layer is the map layer 402, and the map layer 402 may be a sticker attached to the surface of the spherical shell 401 or a coating printed on the outer surface of the spherical shell 401.
Furthermore, a battery is arranged in the base 1, the battery, the electric switch 8 and the LED light source 7 are connected through a lead, the rotating shaft 3 is a hollow shaft, and the lead penetrates through the rotating shaft 3.
In the above embodiment, in order to make the demonstration globe more beautiful, the wires of the LED light sources 7 are all passed through the inside of the hollow rotating shaft 3. Each electrical switch 8 controls the turning on or off of one LED light source 7.
Further, referring to fig. 1 and 3, the upper surface of the base 1 is provided with a "summer solstice" mark 9, a "autumn mark" mark 10, a "winter solstice" mark 11 and a "spring solstice" mark 12 in turn according to the counterclockwise direction, and the "summer solstice" mark 9 is located right below the upper half section of the rotating shaft 3.
Since spring equinox, summer solstice, autumn equinox and winter solstice are specific nodes in one year, in order to facilitate the observer to visually observe the conditions of the nodes in the revolution process of the earth, in the above embodiment, the base 1 right below the nodes is respectively printed with the "summer solstice" mark 9, the "autumn solstice" mark 10, the "winter solstice" mark 11 and the "spring solstice" mark 12 counterclockwise, wherein the "summer solstice" mark 9 is located right below the upper half section of the rotating shaft 3.
In practice, the sun is immobile, the earth revolves around the sun from west to east, and in an experiment for demonstrating the revolution of the earth around the sun by using the demonstration globe, the demonstration globe is set to be immobile, so that the sun needs to rotate around the demonstration globe anticlockwise, namely, an observer rotates around the demonstration globe anticlockwise.
Demonstration of "summer solstice": an observer is positioned in front of the second vertical opaque circular plate 6, two LED light sources 7 in front of the second vertical opaque circular plate 6 are started, the sight of the observer is over against the return line north, namely, the direct solar radiation return line north is demonstrated, and a mark 9 of 'summer solstice' is arranged at a corresponding position on the base 1;
demonstrating the autumn: an observer rotates anticlockwise to the west side of the light-transmitting earth model 4, two LED light sources 7 on the left side of the first vertical light-proof circular plate 5 are turned on, the sight of the observer faces the equator, namely the direct solar equator is demonstrated, and a mark 10 for the autumn score is arranged at a corresponding position on the base 1;
demonstration of winter solstice: the observer continues to rotate anticlockwise to the rear of the second vertical light-proof circular plate 6, the two LED light sources 7 behind the second vertical light-proof circular plate 6 are started, the sight of the observer directly irradiates the south-return line again, namely the direct solar south-return line is demonstrated, and a winter solstice mark 11 is arranged at a corresponding position on the base 1;
demonstrating the spring equinox: the observer continues to rotate anticlockwise to the right side of the light-transmitting earth model 4, the two LED light sources 7 on the right side of the first vertical light-proof circular plate 5 are turned on, the sight of the observer is over against the equator, namely, the sun is demonstrated to directly irradiate the equator again, and the base 1 is provided with a spring mark 12 at a corresponding position.
Through the utility model discloses a demonstration globe controls lighting or extinguishing of LED light source 7, and the principle of changing round the clock and four seasons that leads to can make the student understand earth rotation, revolution more easily that direct-perceived, vivid demonstration earth rotation and revolution are replaced.
Although the invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that certain changes and modifications can be made therein without departing from the scope of the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The demonstration globe is characterized by comprising a base (1), wherein an upright post (2) is arranged in the middle of the base (1), an arc-shaped shaft frame (13) is arranged on the upright post (2), a forward-inclined rotating shaft (3) is arranged on the shaft frame (13), and a hollow light-transmitting earth model (4) capable of rotating around the rotating shaft (3) is sleeved on the rotating shaft (3); a first vertical light-tight circular plate (5) penetrating through the center line of the rotating shaft (3) is arranged on the rotating shaft (3), the circle center of the first vertical light-tight circular plate (5) is overlapped with the sphere center of the light-transmitting earth model (4), and the diameter of the first vertical light-tight circular plate (5) is smaller than that of the inner surface of the light-transmitting earth model (4); a second vertical light-tight circular plate (6) perpendicular to the first vertical light-tight circular plate (5) is further arranged on the rotating shaft (3), the circle center of the second vertical light-tight circular plate (6) is overlapped with the sphere center of the light-transmitting earth model (4), and the diameter of the second vertical light-tight circular plate (6) is smaller than that of the inner surface of the light-transmitting earth model (4); the light-transmitting earth model (4) is divided into four spaces by the first vertical light-proof circular plate (5) and the second vertical light-proof circular plate (6), and an LED light source (7) is arranged in each space.
2. The presentation globe according to claim 1, characterized in that an electric switch (8) is provided on the base (1) corresponding to each LED light source (7).
3. The presentation globe according to claim 1, characterized in that the rotation axis (3) is at an angle of 66 ° 34' to the horizontal.
4. The presentation globe according to claim 1, characterized in that the light-transmitting earth model (4) comprises a spherical shell (401), the outer surface of the spherical shell (401) being provided with a map layer (402).
5. The demonstration globe according to claim 4, characterized in that the globe shell (401) is acrylic material or PC material.
6. The presentation globe according to claim 4, characterized in that the map layer (402) is printed with land and sea patterns.
7. The presentation globe of claim 4, characterized in that the map layer (402) is printed with an equator, a northreturn line and a southbound return line.
8. The demonstration globe according to claim 2, characterized in that batteries are arranged in the base (1), and the batteries, the electric switch (8) and the LED light source (7) are connected through wires; the rotating shaft (3) is a hollow shaft, and the conducting wire penetrates through the rotating shaft (3).
9. The presentation globe according to claim 1, characterized in that the upper surface of the base (1) is provided with a "summer solstice" mark (9), "autumn mark" (10), "winter solstice" mark (11) and "spring solstice" mark (12) in a counterclockwise sequence, the "summer solstice" mark (9) being located right below the upper half section of the rotation axis (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022113295.7U CN213070351U (en) | 2020-09-24 | 2020-09-24 | Demonstration globe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022113295.7U CN213070351U (en) | 2020-09-24 | 2020-09-24 | Demonstration globe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213070351U true CN213070351U (en) | 2021-04-27 |
Family
ID=75560182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022113295.7U Expired - Fee Related CN213070351U (en) | 2020-09-24 | 2020-09-24 | Demonstration globe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213070351U (en) |
-
2020
- 2020-09-24 CN CN202022113295.7U patent/CN213070351U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210427 |
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| CF01 | Termination of patent right due to non-payment of annual fee |