Globe convenient for efficiently demonstrating and observing revolution and rotation effects

Abstract

The utility model relates to a globe, in particular to a globe convenient for efficiently demonstrating and observing revolution and rotation effects, which comprises a support main body, an earth body, a light barrier, an illumination light source and a point light source, the support main body is connected with a first support through a first clamping shaft, and the support main body is connected with a second support through a second clamping shaft; clamping holes allowing the first clamping shaft and the second clamping shaft to penetrate through are formed in the two ends of the earth body respectively, the light barrier is arranged in the earth body and rotationally arranged between the first support and the second support, the illumination light source is arranged on the light barrier, the light barrier is provided with an electric connector A, and the electric connector A is electrically connected with the illumination light source and the point light source. The first support is provided with an electric connector B which is electrically connected with the power source and rotationally matched with the electric connector A. The point light source is arranged in the middle of the light barrier, the lighting source and the point light source are arranged on the same side, the point light source is arranged on the light barrier, the structure is more compact, and the sight of an observer cannot be shielded.

Description

Technical Field

[0001] This utility model relates to a globe, and more particularly to a globe that facilitates efficient demonstration and observation of the effects of Earth's rotation. Background Technology

[0002] Chinese utility patent CN218447056U discloses a globe for demonstrating the alternation of day and night, changes in day and night length, and the four seasons. When the sunshade plate inside the globe is stationary, rotating the globe demonstrates the alternation of day and night caused by the Earth's rotation. When the sunshade plate rotates, it is linked to the relative position of the light source to simulate the part of the Earth illuminated by the sun, and to demonstrate the seasonal changes caused by changes in the position of the direct sunlight. However, the rotation of the sunshade plate requires a handle to rotate, and continuous circular rotation requires switching hands, making operation awkward. Moreover, during the rotation of the handle, the direct sunlight indicator will block certain areas of the observation point, causing inconvenience to the observer. In addition, the structure requires multiple sets of multi-stage internal and external gears to drive the rotation of the sunshade plate, which is complex. The cumulative error of the multi-stage gear meshing is large, affecting accuracy, and the manufacturing process is difficult and costly. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a globe that facilitates efficient demonstration and observation of the Earth's rotation effect. A point light source is set inside the Earth itself, and the internal illumination forms a mapping point on the sphere, allowing for intuitive and efficient observation of the alternation of day and night, the terminator, the relative position change of the sun's direct point, and the resulting seasonal changes, changes in day and night length, and the equinoxes and solstices.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This teaching demonstration globe, which is easy to observe, includes a support body, a globe body, a light-blocking plate, an illumination source, and a point light source. The support body is connected to a first support via a first pivot, and to a second support via a second pivot. Both the first and second supports are located within the globe body. The globe body has locking holes at both ends for the first and second pivots to pass through. The light-blocking plate is disposed within the globe body and is rotatably positioned between the first and second supports. The rotation center line of the light-blocking plate forms an angle with the straight lines containing the first and second pivots. The illumination source is located on the light-blocking plate. The light-blocking plate has an electrical connector A, which is electrically connected to the illumination source and the point light source. The first support has an electrical connector B, which is electrically connected to a power source. The power source is located on the support body. The electrical connector B and electrical connector A are rotatably coupled. The point light source is located in the middle of the light-blocking plate, and the illumination source and the point light source are located on the same side.

[0005] In this design, the point light source representing the direct sunlight is placed on the light-blocking plate, resulting in a more compact structure that does not obstruct the observer's view. When the light-blocking plate is stationary, rotating the sphere can demonstrate the alternation of day and night caused by the Earth's rotation. When the light-blocking plate rotates, it can demonstrate the relative position changes of the direct sunlight point throughout the year and the seasonal changes. The rotating cooperation between electrical connectors B and A not only achieves electrical connection but also effectively solves the problem of wire winding caused when the light-blocking plate rotates.

[0006] Preferably, the light-blocking plate is provided with a driving device, the output shaft of the driving device is connected to the second bracket, and the driving device is electrically connected to the electrical connector A.

[0007] In this design, the drive unit rotates around the output shaft, causing the light-blocking plate to rotate. The drive structure is simple, and the inverted drive unit makes the second bracket thinner and the light-blocking plate more rounded, resulting in a better light-blocking effect.

[0008] Preferably, the light-blocking plate is hemispherical or circular in shape, and the Earth body is made of a light-transmitting material.

[0009] In this design, the hemispherical light-blocking plate forms a day hemisphere and a night hemisphere by blocking the Earth's body, while the circular light-blocking plate forms a day hemisphere and a night hemisphere by separating the light-emitting space. The Earth's body is made of a light-transmitting material to facilitate the contrast between the day and night hemispheres and the display of the direct sunlight point.

[0010] Preferably, the first bracket and the second bracket are arc-shaped.

[0011] In this design, the first and second supports are arc-shaped and as close to the Earth as possible, so that the light-blocking plate is large enough to fully block the light and form a day hemisphere and a night hemisphere.

[0012] Preferably, the bracket body includes a C-shaped bracket and a base. The C-shaped bracket connects the first bracket and the second bracket. The C-shaped bracket is detachably mounted on the base. The power supply is located inside the bracket body. The bracket body is provided with a charging port and a main switch. The charging port is electrically connected to the power supply. The main switch connects the power supply and the electrical connector B.

[0013] In this solution, the charging port is connected to a power source, eliminating the need to disassemble the main unit of the bracket to replace the power source.

[0014] Preferably, the support body is provided with a control switch, which is connected to the main switch and the drive device.

[0015] In this design, the control switch allows the operator to easily control the rotation and stop of the drive device, as well as the direction of the light source, facilitating demonstration and observation.

[0016] Preferably, it further includes a remote control switch and a controller, wherein the controller is signal-connected to the remote control switch and the controller is connected to the main switch and the drive device.

[0017] In this solution, the remote control switch facilitates remote teaching demonstrations by instructors.

[0018] The beneficial effects of this utility model are as follows: the point light source is set on the light-blocking plate, resulting in a more compact structure that does not obstruct the observer's view. When the light-blocking plate is stationary, rotating the sphere demonstrates the alternation of day and night caused by the Earth's rotation. When the light-blocking plate rotates, it demonstrates the relative position changes of the sun's direct point throughout the year and the changing seasons. Electrical connectors B and A work together to achieve electrical connection, solving the wiring problem caused by the rotation of the light-blocking plate. The drive device rotates around the output shaft, driving the light-blocking plate to rotate. The drive structure is simple, and the inverted drive device makes the supporting bracket thinner, making the light-blocking plate more complete and improving the light-blocking effect. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description

[0019] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] In the diagram: 1. C-shaped bracket; 2. First retaining pin; 4. Second retaining pin; 6. Earth body; 7. Light blocking plate; 8. Light source; 9. Point light source; 10. Electrical connector A; 11. Electrical connector B; 12. Power supply; 13. Drive device; 15. Base; 16. Charging port; 17. Main switch; 18. Control switch. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0025] See appendix Figure 1 This embodiment of the invention provides a globe for efficient demonstration and observation of the Earth's rotation effect, comprising a support body, an Earth body 6, a light-blocking plate 7, an illumination source 8, and a point light source 9. The support body is connected to a first support via a first pivot 2, and to a second support via a second pivot 4. Both the first and second supports are housed within the Earth body 6 and are arc-shaped. The Earth body 6 has locking holes at both ends for the first pivot 2 and the second pivot 4 to pass through. The light-blocking plate 7 is disposed within the Earth body 6 and is rotatably positioned between the first and second supports. The light-blocking plate 7 is hemispherical or circular in shape. The Earth body 6 is made of a light-transmitting material. The rotation center line of the light-blocking plate 7 forms an angle with the straight lines containing the first pivot 2 and the second pivot 4. The illumination source 8 is disposed on the light-blocking plate 7.

[0026] The light-blocking plate 7 is provided with an electrical connector A10, which is electrically connected to the lighting source 8 and the point light source 9. The first bracket is provided with an electrical connector B11, which is electrically connected to the power supply 12. The power supply 12 is located on the main body of the bracket. The electrical connector B11 and the electrical connector A10 are rotatably engaged. The point light source 9 is located in the middle of the light-blocking plate 7. The lighting source 8 and the point light source 9 are located on the same side.

[0027] In this embodiment, the solar indicator on the outer support of the sphere, i.e., the laser head that emits a point laser beam, is built into the light-blocking plate 7 inside the sphere, projecting onto the sphere from the inside out, thereby showing the position of the direct sunlight point. Rotating the light-blocking plate 7 inside the sphere counterclockwise causes the laser beam point light source 8 to move counterclockwise along the inner surface of the sphere. Since the sphere is transparent, the dynamic change of the position of the direct sunlight point between the Tropic of Cancer and the Tropic of Capricorn on the outer surface of the sphere is shown, which is easier to observe and record, and makes the overall structure more beautiful and easier to operate. The illumination source 8 is an LED ring light strip, and the point light source 9 is the laser head point laser lamp; the electrical connectors B11 and A10 are male and female audio cable connectors, which perfectly introduce the external current of the sphere into the LED light source 8 and the laser head light source 8 installed on the rotating light-blocking plate 7, overcoming the problem of the power supply 12 wires getting tangled during the rotation of the light-blocking plate 7. The principle is to achieve electrical connection through contact to adapt to rotation; the sphere's locking hole can rotate freely on the locking shaft, changing the observation area.

[0028] See appendix Figure 1The light-blocking plate 7 is equipped with a driving device 13. The output shaft of the driving device 13 is connected to the second bracket, and the driving device 13 is electrically connected to the electrical connector A.

[0029] In this embodiment, the drive device 13 rotates around the output shaft to drive the light-blocking plate 7. It is powered by the electrical connector A and has a simple structure. Specifically, the drive device 13 is a speed reduction micro-drive device 13.

[0030] In other alternative embodiments, the drive unit 13 body is connected to the second bracket, and the output shaft of the drive unit 13 is connected to the light-blocking plate 7. In this case, a wire needs to be installed to electrically connect the drive unit 13 to the power supply 12. Alternatively, a gear transmission can be designed. When the drive unit is installed outside the sphere, two bevel gears are installed on the second bracket. One bevel gear is connected to the light-blocking plate 7, and the gear shaft of the other bevel gear passes through the second retaining shaft 4 and is connected to the drive unit 13 for transmission. The drive unit 13 can be magnetically driven, using a ring magnetic field set around the light-blocking plate 7 inside the sphere, and propulsion outside the sphere by another magnet, that is, using the interaction force between magnetic poles as the driving method.

[0031] See appendix Figure 1 The bracket body includes a C-shaped bracket 1 and a base 15. The C-shaped bracket 1 connects the first bracket and the second bracket. The C-shaped bracket 1 is detachably mounted on the base 15. The power supply 12 is located inside the bracket body. The bracket body is provided with a charging port 16 and a main switch 17. The charging port 16 is electrically connected to the power supply 12. The main switch 17 connects the power supply 12 and the electrical connector B11. The bracket body is provided with a control switch 18. The control switch 18 connects the main switch 17 and the drive device 13. It also includes a remote control switch and a controller. The controller is signal-connected to the remote control switch and connects the main switch 17 and the drive device 13.

[0032] In this embodiment, the control switch 18 and the remote control switch are connected in series with the main switch 17, and the remote control switch and the electric switch are connected in parallel. This satisfies both close-range operation and observation and adapts to long-distance teaching demonstrations. The controller receives signals from the remote control switch to control the on / off state of the corresponding circuits. The power supply 12, charging port 16, and main switch 17 can be located inside the base 15 or inside the C-shaped bracket 1. A voice broadcast function can also be added. When the light-blocking plate is rotated to the four cardinal directions (north, south, east, and west), that is, when the light and shadow show the characteristics of the four solar terms (spring equinox, autumn equinox, summer solstice, and winter solstice), the chip activates the broadcast function, and the voice broadcast is consistent with the display.

[0033] The above description represents the preferred embodiment of this utility model. It should be noted that the protection scope of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these modifications and substitutions are also considered to be within the protection scope of this utility model.

Claims

1. A globe facilitating efficient demonstration and observation of the effects of rotation of the earth, comprising a support body connected with a first support through a first card shaft (2), the support body being connected with a second support through a second card shaft (4), the first support and the second support being arranged in a globe body (6); a globe body (6) having a card hole at each end for the first card shaft (2) and the second card shaft (4) to pass through; a light barrier (7) arranged in the globe body (6), the light barrier (7) being rotatably arranged between the first support and the second support, the center line of rotation of the light barrier (7) having an angle with the straight line where the first card shaft (2) and the second card shaft (4) are located; an illuminating light source (8) arranged on the light barrier (7); a point light source (9); characterized in that the light barrier (7) is provided with an electrical connector A (10), the electrical connector A (10) is electrically connected with the illuminating light source (8) and the point light source (9), the first support is provided with an electrical connector B (11), the electrical connector B (11) is electrically connected with a power supply (12), the power supply (12) is arranged on the support body, the electrical connector B (11) and the electrical connector A (10) are rotatably connected, the point light source (9) is arranged in the middle of the light barrier (7), and the illuminating light source (8) is arranged on the same side of the point light source (9).

2. The globe of claim 1, wherein: The light barrier (7) is provided with a driving device (13), the output shaft of the driving device (13) is connected with the second support, and the driving device (13) is electrically connected with the electrical connector A.

3. The globe of claim 1, wherein: the globe is configured to facilitate efficient demonstration and observation of the effects of the rotation of the earth. The light barrier (7) is in a whole semispherical or circular shape, and the globe body (6) is made of a light-transmitting material.

4. The globe of claim 1, wherein: the globe is configured to facilitate efficient demonstration and observation of the effects of the rotation of the earth. The first support and the second support are in an arc shape.

5. The globe of claim 2, wherein: the globe is configured to facilitate efficient demonstration and observation of the effects of the Earth's rotation and revolution. The support body comprises a C-shaped support (1) and a base (15), the C-shaped support (1) connects the first support and the second support, the C-shaped support (1) is detachably arranged on the base (15), the power supply (12) is arranged in the support body, the support body is provided with a charging port (16) and a master switch (17), the charging port (16) is electrically connected with the power supply (12), and the master switch (17) connects the power supply (12) and the electrical connector B (11).

6. The globe of claim 5, wherein: The support body is provided with a control switch (18), the control switch (18) connects the master switch (17) and the driving device (13).

7. The globe of claim 5, wherein: the globe is configured to facilitate efficient demonstration and observation of the effects of the Earth's rotation and revolution. Further comprising a remote control switch and a controller, the controller is signal-connected with the remote control switch, and the controller connects the master switch (17) and the driving device (13).

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