Equipment for simulating and drawing solar apparent moving tracks at different latitudes and at different times
By designing a device to simulate and plot the apparent trajectory of the sun at different latitudes and times, and using light strips and laser lights to simulate the sun's movement, the problem of students' difficulty in understanding the sun's trajectory and the limitations of high-cost software has been solved, achieving comprehensive observation and visual learning effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 刘艳
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-08
AI Technical Summary
Students struggle to understand the differences in the sun's trajectory at different latitudes and times due to the Earth's spherical shape, and existing software demonstration tools are limited by copyright and high costs, making it difficult to observe comprehensively.
Design a device to simulate and plot the apparent trajectory of the sun at different latitudes and times, including a base, light strip switch, earth, connecting axis, celestial sphere, light strip, declination circle, celestial dome, celestial dome support and lighting mechanism. The device simulates the sun's trajectory by using light strip and laser light, and combines the declination circle and azimuth scale to achieve all-round observation and plotting.
It facilitates students' visual understanding of the sun's trajectory, reduces software cost limitations, provides comprehensive observation tools, and enhances students' learning outcomes regarding the sun's apparent motion.
Smart Images
Figure CN224217178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of teaching equipment technology, specifically to a device for simulating and drawing the apparent trajectory of the sun at different latitudes and times. Background Technology
[0002] Every year around the summer solstice (June 22nd), the sun shines perpendicularly to 23°26′N; around the winter solstice (December 22nd), it shines perpendicularly to 23°26′S; and around the spring equinox (March 21st) and autumn equinox (September 23rd), it shines perpendicularly to the equator. The sun travels back and forth between the Tropic of Cancer and the Tropic of Capricorn. When this trajectory is projected onto the celestial sphere, the sun's apparent position varies at different latitudes and times because the Earth is a sphere. This makes it difficult for students to visualize the sun's trajectory, posing a challenge to their learning. Furthermore, while there are animations demonstrating the sun's apparent motion, students cannot observe it from any angle or perspective. The high cost of software copyrights and purchases also limits their ability to do so. Therefore, it is necessary to design a device to simulate and plot the sun's apparent trajectory at different latitudes and times. Utility Model Content
[0003] To overcome the above shortcomings, this utility model provides a device for simulating and drawing the apparent trajectory of the sun at different latitudes and times. It aims to improve the situation where, because the Earth is a sphere, the sun's position observed at different latitudes and times is different, making it difficult for students to imagine the sun's trajectory and posing a certain challenge to their learning. In addition, although there are animations demonstrating the apparent motion of the sun, students find it difficult to observe it from any angle in all directions, and are also limited by the high cost of software copyrights and purchase fees.
[0004] The implementation scheme of this utility model is as follows:
[0005] This utility model provides a device for simulating and drawing the apparent trajectory of the sun at different latitudes and times, including a base, a light strip switch, an earth, a connecting shaft, a celestial sphere, a light strip, a declination circle, a celestial dome, a celestial dome support, and a lighting mechanism. The light strip switch is installed on the base, and the earth is fixed inside the celestial sphere through the connecting shaft.
[0006] The light strip and the declination ring are both set on the celestial sphere. The light strip switch is set correspondingly to the light strip. The dome support is fixed on the base. The end of the base is rotatably set on the celestial sphere. The dome support is provided with a number of locking holes. The number of locking holes is axially equidistant on the dome support.
[0007] The lighting mechanism is installed on the dome, which is mounted on the dome support. The lighting mechanism is designed to project light onto the Earth.
[0008] In one embodiment of this utility model, the light strip switch includes a summer solstice switch, a spring and autumn equinox switch, and a winter solstice switch, all of which are mounted on the base.
[0009] In one embodiment of this utility model, the light strip includes a celestial equator light strip, a declination +23°26′ light strip, and a declination -23°26′ light strip. The celestial equator light strip, the declination +23°26′ light strip, and the declination -23°26′ light strip are all fixedly sleeved on the celestial sphere. The summer solstice switch is electrically connected to the declination +23°26′ light strip, the spring and autumn equinoxes switch is electrically connected to the celestial equator light strip, and the winter solstice switch is electrically connected to the declination -23°26′ light strip.
[0010] In one embodiment of this utility model, the declination circle includes a declination +75° circle, a declination +66°34′ circle, a declination +60° circle, a declination +30° circle, a declination -30° circle, a declination -60° circle, a declination -66°34′ circle, and a declination -75° circle. The declination +75° circle, the declination +66°34′ circle, the declination +60° circle, the declination +30° circle, the declination -30° circle, the declination -60° circle, the declination -66°34′ circle, and the declination -75° circle are all disposed on the celestial sphere.
[0011] In one embodiment of this utility model, a light-passing hole is provided on the celestial sphere, and the light-passing hole and the card hole are correspondingly arranged.
[0012] In one embodiment of this utility model, the celestial dome is provided with directions, namely the four directions of east, south, west, and north.
[0013] In one embodiment of the present invention, an edge is also included, which is fixed to the dome.
[0014] In one embodiment of this utility model, the dome support is provided with a declination scale. Every five declination degrees of the scale correspond to one of the locking holes. The locking holes are removed at four positions: declination +20°, declination -20°, declination +65°, and declination -65°. At the same time, holes are added corresponding to four positions: declination -23°26′ light strip, declination +23°26′ light strip, declination +66°34′ circle, and declination -66°34′ circle.
[0015] In one embodiment of this utility model, the lighting mechanism includes a reinforcing block, a locking post, a laser light, and a laser light switch. The locking post is fixedly inserted into the dome, the reinforcing block is fixed to both the locking post and the dome, the laser light and the laser light switch are both fixedly installed on the locking post, and the laser light switch and the laser light are electrically connected together.
[0016] The beneficial effects of this utility model are as follows: This utility model provides a device for simulating and drawing the apparent trajectory of the sun at different latitudes and times, which facilitates the depiction of the sun's trajectory at different latitudes onto the celestial dome, making the abstract problem more concrete, making it easier for students to observe the sun's trajectory, learn and understand the content of the apparent motion of the sun, and transfer the three-dimensional presentation of the sun's apparent trajectory throughout the year onto a graph, further understanding the abstract knowledge of the apparent motion of the sun and enhancing students' understanding of the universe. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural diagram of a device for simulating and drawing the apparent trajectory of the sun at different latitudes and times, provided by an embodiment of this utility model;
[0019] Figure 2 A diagram showing the relationship between the base, the light strip switch, the celestial sphere, the light strip, and the dome support provided for an embodiment of this utility model.
[0020] Figure 3 A diagram showing the relationship between the celestial sphere, the light strip, and the declination circle provided for embodiments of this utility model;
[0021] Figure 4 A cross-sectional view of the celestial sphere provided for an embodiment of this utility model;
[0022] Figure 5 A three-dimensional structural diagram of the dome provided for an embodiment of this utility model;
[0023] Figure 6 A three-dimensional structural diagram of the lighting mechanism provided for an embodiment of this utility model;
[0024] Figure 7 A three-dimensional structural diagram of the dome support provided for an embodiment of this utility model.
[0025] In the diagram: 110, base; 120, LED strip switch; 121, summer solstice switch; 122, spring and autumn equinoxes switch; 123, winter solstice switch; 130, Earth; 140, connecting axis; 150, celestial sphere; 160, LED strip; 161, celestial equator LED strip; 162, declination +23°26′ LED strip; 163, declination -23°26′ LED strip; 170, declination circle; 171, declination +75° circle; 172, declination +66°34′ circle; 173, declination +60° Circle; 174, Declination +30° Circle; 175, Declination -30° Circle; 176, Declination -60° Circle; 177, Declination -66°34′ Circle; 178, Declination -75° Circle; 180, Lighting Hole; 190, Dome; 191, Azimuth; 192, Edge; 193, Lighting Mechanism; 1931, Reinforcing Block; 1932, Locking Post; 1933, Laser Light; 1934, Laser Light Switch; 194, Dome Support; 195, Locking Hole; 196, Declination Scale. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] Example
[0028] Please see Figures 1-7 This utility model provides a technical solution: a device for simulating and drawing the apparent trajectory of the sun at different latitudes and times, including a base 110, a light strip switch 120, an earth 130, a connecting shaft 140, a celestial sphere 150, a light strip 160, a declination circle 170, a celestial dome 190, a celestial dome support 194, and a lighting mechanism 193. The light strip switch 120 is installed on the base 110, and the light strip switch 120 includes a summer solstice switch 121, a spring and autumn equinox switch 122, and a winter solstice switch 123. The summer solstice switch 121, spring and autumn equinox switch 122, and winter solstice switch 123 are all installed on the base 110. The earth 130 is fixed inside the celestial sphere 150 through the connecting shaft 140.
[0029] Both the light strip 160 and the declination circle 170 are mounted on the celestial sphere 150. The light strip 160 includes a celestial equatorial light strip 161, a +23°26′ declination light strip 162, and a -23°26′ declination light strip 163, all fixedly mounted on the celestial sphere 150. On the summer solstice, switch 121 is electrically connected to the +23°26′ declination light strip 162; on the spring and autumn equinoxes, switch 122 is electrically connected to the celestial equatorial light strip 161; and on the winter solstice, switch 123 is electrically connected to the -23°26′ declination light strip 163. The declination circle 170 includes a +75° declination circle 171, a +66°34′ declination circle 172, a +60° declination circle 173, and a +30° declination circle 174. The following loops are set on the celestial sphere 150: declination -30° circle 175, declination -60° circle 176, declination -66°34′ circle 177 and declination -75° circle 178; declination +75° circle 171, declination +66°34′ circle 172, declination +60° circle 173, declination +30° circle 174, declination -30° circle 175, declination -60° circle 176, declination -66°34′ circle 177 and declination -75° circle 178. The light strip switch 120 and the light strip 160 are set accordingly. The dome support 194 is fixed on the base 110. The end of the base 110 is rotatably set on the celestial sphere 150. The dome support 194 has several locking holes 195. The several locking holes 195 are axially equidistantly set on the dome support 194.
[0030] The lighting mechanism 193 is installed on the dome 190, which is secured to the dome support 194. The lighting mechanism 193 is designed to project light onto the Earth 130. The lighting mechanism 193 includes a reinforcing block 1931, a locking post 1932, a laser light 1933, and a laser light switch 1934. The locking post 1932 is fixedly inserted into the dome 190. The reinforcing block 1931 is simultaneously fixed to both the locking post 1932 and the dome 190. The laser light 1933 and the laser light switch 1934 are both fixedly installed on the locking post 1932. The laser light switch 1934 and the laser light 1933 are electrically connected together. A light-passing hole 180 is provided on the celestial sphere 150. The light-passing hole 180 and the locking hole 195 are correspondingly positioned and at the same latitude as the Earth. An azimuth indicator 19 is provided on the dome 190. 1. The orientation 191 is the four directions of east, south, west, and north, and also includes the edge 192, which is fixed to the dome 190. The setting of the edge 192 facilitates the placement of the dome 190. The inner radius of the dome 190 is equal to the radius from the center of the Earth 130 to the outer radius of the dome support 194. The dome support 194 is provided with declination scale 196. Every five degrees of latitude of the declination scale 196 is set with a corresponding hole 195. The holes 195 are removed from the four positions of declination +20°, declination -20°, declination +65° and declination -65°, and at the same time, holes are added corresponding to the four positions of declination -23°26′ light strip 163, declination +23°26′ light strip 162, declination +66°34′ circle 172 and declination -66°34′ circle 177.
[0031] Specifically, the working principle of this device for simulating and mapping the apparent trajectory of the sun at different latitudes and times is as follows: During use, the summer solstice switch 121, the spring and autumn equinox switch 122, and the winter solstice switch 123 are used to turn on the +23°26′ declination light strip 162, the celestial equator light strip 161, and the -23°26′ declination light strip 163, respectively. The north direction on the celestial dome 190 is aligned with the celestial north pole direction on the celestial dome support 194. Then, the celestial dome 190 is moved according to the declination scale 196, aligning the celestial dome 190 with the north pole direction on the celestial dome support 194. The zenith of the dome 190 is moved to the latitude line represented by the declination circle 170 to be drawn. The laser light switch 1934 is turned on, causing the laser light 1933 to emit a laser beam. The laser beam passes through the locking hole 195 and the light aperture 180 to illuminate the latitude line of the Earth 130. When the light beam coincides with the corresponding latitude on the Earth 130, the locking post 1932 on the dome 190 is inserted into the locking hole 195, thus securing the dome 190 to the dome support 194. The user's line of sight is directly facing the zenith of the dome 190, and then the dome is fixed. At position 190, and based on the declination +23°26′ light band 162, the celestial equator light band 161, and the declination -23°26′ light band 163, use a marker to draw the apparent solar motion diagram of the equinoxes and solstices on Dome 190. Specifically, draw lines on Dome 190 that correspond to and overlap with the declination +23°26′ light band 162, the celestial equator light band 161, and the declination -23°26′ light band 163. Then remove Dome 190 and lay it flat. The view from the center of the horizon circle within Dome 190 is now... The lines depicted represent the apparent motion trajectory of the sun at the required latitude. This device, which simulates the sun's trajectory at different latitudes and times, facilitates the depiction of the sun's motion trajectory at different latitudes onto the celestial dome, making the abstract concept more concrete. This makes it easier for students to observe the sun's motion trajectory, learn and understand the content of the sun's apparent motion, and transfer the three-dimensional presentation of the sun's apparent motion trajectory throughout the year onto a graph, further enhancing their understanding of the abstract knowledge of the sun's apparent motion and improving their cosmological understanding.
[0032] It should be noted that the specific models and specifications of the Summer Solstice Switch 121, Spring and Autumn Equinox Switch 122, Winter Solstice Switch 123, Celestial Equator Light Strip 161, Declination +23°26′ Light Strip 162, Declination -23°26′ Light Strip 163, Laser Light 1933, and Laser Light Switch 1934 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.
[0033] The power supply and operating principles of the summer solstice switch 121, the spring and autumn equinox switch 122, the winter solstice switch 123, the celestial equator light strip 161, the +23°26′ declination light strip 162, the -23°26′ declination light strip 163, the laser light 1933, and the laser light switch 1934 are clear to those skilled in the art and will not be described in detail here.
[0034] The above description is merely an embodiment of this utility model and is not intended to limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
Claims
1. A device for simulating and plotting the apparent trajectory of the sun at different latitudes and times, characterized in that, The device includes a base (110), a light strip switch (120), an Earth (130), a connecting shaft (140), a celestial sphere (150), a light strip (160), a declination circle (170), a celestial dome (190), a celestial dome support (194), and a lighting mechanism (193). The light strip switch (120) is mounted on the base (110), and the Earth (130) is fixed inside the celestial sphere (150) via the connecting shaft (140). The light strip (160) and the declination ring (170) are both set on the celestial sphere (150). The light strip switch (120) is set correspondingly to the light strip (160). The dome support (194) is fixed on the base (110). The end of the base (110) is rotatably set on the celestial sphere (150). The dome support (194) is provided with a number of locking holes (195). The number of locking holes (195) are axially equidistant on the dome support (194). The lighting mechanism (193) is installed on the dome (190), and the dome (190) is mounted on the dome support (194). The lighting mechanism (193) is configured to illuminate the Earth (130) at the corresponding latitude.
2. The device for simulating and plotting the apparent trajectory of the sun at different latitudes and times according to claim 1, characterized in that, The light strip switch (120) includes a summer solstice switch (121), a spring and autumn equinox switch (122), and a winter solstice switch (123), all of which are mounted on the base (110).
3. The device for simulating and plotting the apparent trajectory of the sun at different latitudes and times according to claim 2, characterized in that, The light strip (160) includes a celestial equator light strip (161), a declination +23°26′ light strip (162), and a declination -23°26′ light strip (163). The celestial equator light strip (161), the declination +23°26′ light strip (162), and the declination -23°26′ light strip (163) are all fixedly sleeved on the celestial sphere (150). The summer solstice switch (121) and the declination +23°26′ light strip (162) are electrically connected together. The spring and autumn equinox switches (122) and the celestial equator light strip (161) are electrically connected together. The winter solstice switch (123) and the declination -23°26′ light strip (163) are electrically connected together.
4. The device for simulating and plotting the apparent trajectory of the sun at different latitudes and times according to claim 1, characterized in that, The declination circle (170) includes a declination +75° circle (171), a declination +66°34′ circle (172), a declination +60° circle (173), a declination +30° circle (174), a declination -30° circle (175), a declination -60° circle (176), a declination -66°34′ circle (177), and a declination -75° circle (178). The declination +75° circle (171), the declination +66°34′ circle (172), the declination +60° circle (173), the declination +30° circle (174), the declination -30° circle (175), the declination -60° circle (176), the declination -66°34′ circle (177), and the declination -75° circle (178) are all set on the celestial sphere (150).
5. The device for simulating and plotting the apparent trajectory of the sun at different latitudes and times according to claim 1, characterized in that, The celestial sphere (150) has a light-passing hole (180), and the light-passing hole (180) and the card hole (195) are respectively provided.
6. The device for simulating and plotting the apparent trajectory of the sun at different latitudes and times according to claim 1, characterized in that, The dome (190) is provided with orientations (191), which are the four directions: east, south, west, and north.
7. The device for simulating and plotting the apparent trajectory of the sun at different latitudes and times according to claim 1, characterized in that, It also includes an edge (192) that is fixed to the dome (190).
8. The device for simulating and plotting the apparent trajectory of the sun at different latitudes and times according to claim 1, characterized in that, The dome support (194) is provided with a declination scale (196). Every five declinations of the declination scale (196) are corresponding to one of the card holes (195). The card holes (195) have four holes removed at the positions of declination +20°, declination -20°, declination +65° and declination -65°. At the same time, holes corresponding to the four positions of declination -23°26′ light strip (163), declination +23°26′ light strip (162), declination +66°34′ circle (172) and declination -66°34′ circle (177) are added.
9. The device for simulating and plotting the apparent trajectory of the sun at different latitudes and times according to claim 1, characterized in that, The lighting mechanism (193) includes a reinforcing block (1931), a locking post (1932), a laser lamp (1933), and a laser lamp switch (1934). The locking post (1932) is fixedly inserted into the dome (190). The reinforcing block (1931) is fixed to both the locking post (1932) and the dome (190). The laser lamp (1933) and the laser lamp switch (1934) are both fixedly installed on the locking post (1932). The laser lamp switch (1934) and the laser lamp (1933) are electrically connected together.