Sunrise and sunset simulation mechanism

Abstract

The utility model discloses a sunrise and sunset simulation mechanism which comprises a geographic latitude positioning mechanism, a sunshine assembly, a sun trajectory arc mechanism, a ground plane platform, a base, a rotating shaft assembly, a geographic latitude pressing nut, a 24 solar term disc and a solar term lifting pin assembly. A geographic latitude dial is arranged on the left side surface of the base, and geographic latitude can be adjusted by means of a geographic latitude positioning mechanism; the sunlight assembly can be clamped on the sunlight track arc mechanism to move along an arc, and a parallel light source can simulate irradiation of sunlight. The solar term lifting pin assembly can rotate around the outer edge of the 24 solar term disc with the center of the rotating shaft assembly as the circle center, the outer edge of the 24 solar term disc is provided with a pit marked by 24 solar terms, and after the solar term lifting pin assembly is positioned, the sunlight assembly can simulate sunlight of different solar terms on a sun trajectory arc. The sunrise and sunset simulation mechanism can demonstrate the sunrise and sunset conditions of different latitudes in different solar terms.

Description

Technical Field

[0001] The invention belongs to the technical field of sunrise and sunset angle changes, and particularly relates to a sunrise and sunset simulation mechanism. Background Art

[0002] Sunrise is the moment when the sun is halfway above the horizon each morning, and also refers to the entire process of the sun crossing the horizon and the accompanying atmospheric effects. Sunset is the moment when the sun disappears from the horizon each day due to the rotation of the earth.

[0003] The Earth's rotation produces the alternation of day and night, the rising and setting of the sun, moon, and stars, and the difference in time. The Earth's revolution around the sun produces the seasons, the varying altitudes of the sun at noon, and the varying lengths of day and night. These variations are all caused by the Earth's rotation and revolution, as well as the Earth's tilt in its orbit.

[0004] Influenced by the Earth's west-to-eastward rotation, the sun's apparent motion appears to rise in the east and set in the west. Strictly speaking, the general notion of the sun rising in the east and setting in the west is inaccurate. Due to the obliquity of the ecliptic, the sun's direct point shifts between the Tropic of Cancer and the Tropic of Capricorn. This shift in the position of the direct point causes sunrise and sunset to occur in different directions at the same location on different dates. Furthermore, sunrise and sunset also occur in different directions at the same time in different locations. Therefore, the directions of sunrise and sunset we see vary depending on the season.

[0005] As early as the Han Dynasty, the ancients accurately described the different variations of the sun's rise and set throughout the four seasons in the Huainanzi Tianwen Xun: "On the winter solstice, the sun rises in the southeast and sets in the southwest. On the spring and autumn equinoxes, the sun rises in the east and sets in the west. On the summer solstice, the sun rises in the northeast and sets in the northwest, reaching due south." The four corners refer to the four corners, as described in the Guangya. "Wei" means "corner." This means that on the winter solstice, the sun is directly above the Tropic of Capricorn, so we see the sun rising in the southeast and setting in the southwest. On the spring and autumn equinoxes, the sun is directly above the equator, so it rises due east and sets due west. On the summer solstice, the sun is directly above the Tropic of Cancer, so it rises in the northeast and sets in the northwest. For example, the Han Dynasty folk song "Mulberry on the Road" states: "The sun rises in the southeast corner, shining on the Qin family's building. The Qin family has a beautiful daughter named Luofu. Luofu loves silkworms and mulberry trees, and she picks mulberry leaves in the southern corner of the city..." This clearly describes the sun's geographical location.

[0006] The four seasons are the seasonal changes in the length of day and night and the height of the sun. Summer is when the daylight is longest and the sun is highest, while winter is when the daylight is shortest and the sun is lowest. The transitional seasons between summer and winter are spring and autumn.

[0007] Understanding the changes in the sun's rising and setting angles on different dates throughout the year can bring many benefits to people in real life, such as year-round lighting analysis between buildings, year-round sunlight simulation of garden landscapes, the placement of solar energy systems, and angle changes of lighting systems.

[0008] In modern primary and secondary education, there is a lot of education on the position of the sun at sunrise and sunset. Especially in high school geography education, the interpretation of the position of the sun at sunrise and sunset is a key point in the geography subject, and also a difficult point in the geography subject.

[0009] At present, there is no device in China that can accurately display the changes in the sun's sunrise and sunset on different dates. In primary and secondary school education, this phenomenon is explained with simple pictures, which greatly reduces students' understanding and acceptance. Summary of the Invention

[0010] To overcome the shortcomings of the prior art, the present invention provides a sunrise and sunset simulation mechanism, comprising a geographic latitude positioning mechanism, a sunlight assembly, a sun trajectory arc mechanism, a ground plane platform, a base, a rotating shaft assembly, a geographic latitude clamping nut, a 24-solar-term disc, and a solar term pin assembly. A geographic latitude dial is provided on the left side of the base, and the geographic latitude positioning mechanism allows for adjustment of the geographic latitude. The sunlight assembly can be clipped onto the sun trajectory arc mechanism and moved along the arc, with a parallel light source simulating sunlight. The solar term pin assembly can rotate along the outer edge of the 24-solar-term disc, with the center of the rotating shaft assembly as the center of the circle. The outer edge of the 24-solar-term disc has recesses indicating the 24 solar terms. After the solar term pin assembly is positioned, the sunlight assembly can simulate sunlight during different solar terms on the sun trajectory arc. The sunrise and sunset simulation mechanism of the present invention can demonstrate the sunrise and sunset conditions during different solar terms in regions of different latitudes.

[0011] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0012] A sunrise and sunset simulation mechanism, comprising a geographic latitude positioning mechanism, a sunlight assembly, a sun trajectory arc mechanism, a ground plane platform, a base, a rotating shaft assembly, a geographic latitude pressing nut, a 24-solar-hour disk, and a solar-hour top pin assembly;

[0013] The left side of the base is provided with a geographic latitude dial, and the geographic latitude can be adjusted with the help of a geographic latitude positioning mechanism;

[0014] The sunlight component can be clamped on the sun track arc mechanism and move along the arc, and a parallel light source can simulate the illumination of sunlight;

[0015] The solar term pin assembly can rotate along the outer edge of the 24 solar term disk with the center of the rotating shaft assembly as the center of the circle. The outer edge of the 24 solar term disk has pits with the 24 solar terms marked on it. After the solar term pin assembly is positioned, the sunlight assembly can simulate sunlight of different solar terms on the arc of the sun trajectory.

[0016] Furthermore, the geographic latitude positioning mechanism is distributed on both sides of the base and is used for latitude adjustment of the sunrise and sunset simulation mechanism; the positioning pin of the geographic latitude positioning mechanism is inserted into the square hole of the arc of the sun trajectory circular arc mechanism, and the sun trajectory circular arc mechanism is rotated to make the latitude pointer point to the local geographic latitude.

[0017] Furthermore, the positioning of the sunlight assembly is completed by a rolling wheel and two positioning wheels, and a parallel light source lighting system is provided at the lower part of the sunlight assembly.

[0018] Furthermore, the daily trajectory arc of the daily trajectory arc mechanism is an arc plate with evenly distributed teeth on the inner arc, and a scale marking of 6-18 o'clock is provided on one side of the arc plate. There is a positioning sleeve at the lower part of the arc, a positioning shaft at the lower part of the positioning sleeve, and a throttle pin assembly mounting hole at the lower part for installing the throttle pin assembly.

[0019] Furthermore, the ground plane platform is a square flat plate, and its upper plane is flush with the axis of the geographic latitude positioning pin mechanism.

[0020] Furthermore, the base is a square table structure with circular slots for adjusting the geographic latitude positioning mechanism and a throttle plate mounting axis on the left and right sides.

[0021] Furthermore, the rotating shaft assembly consists of a central shaft, a positioning sleeve, a bearing and tightening nuts at both ends. After adjusting the geographical latitude of the sunrise and sunset simulation mechanism, the nuts are tightened so that the bearing can support the 24 solar term disk to rotate.

[0022] Furthermore, the geographic latitude pressing nut presses the throttle disc onto the base through the throttle disc mounting shaft on the side of the base.

[0023] Furthermore, the names of the 24 solar terms are symmetrically engraved on the 24 solar terms disk, and pits are provided at corresponding positions on the outer edge of the bottom to facilitate the positioning of the solar term pin assembly; each pit takes the center of the rotation axis as the rotation center, and takes the vernal equinox and autumnal equinox as the symmetry lines, and is distributed along both sides. The right side is: Qingming and Bailu, Guyu and Chushu, Lixia and Liqiu, Xiaoman and Dashu, Mangzhong and Xiaoshu, and Summer Solstice, and the left side is: Jingzhe and Hanlu, Yushui and Shuangjiang, Lichun and Lidong, Dahan and Xiaoxue, Xiaohan and Daxue, and Winter Solstice.

[0024] Furthermore, the solar term push pin assembly has a spring that allows the push pin to automatically rebound. When adjusting the solar term, pull the handle of the solar term push pin to drive the daily trajectory arc mechanism to rotate a certain angle. Release the handle to allow the tip of the solar term positioning pin to be pushed into the pit on the 24 solar term disk to complete the daily trajectory adjustment for different solar terms.

[0025] The beneficial effects of the present invention are as follows:

[0026] The sunrise and sunset simulation mechanism of the present invention can demonstrate the sunrise and sunset conditions in different solar terms in different latitudes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 An overall diagram of the components of the sunrise and sunset simulation mechanism provided by an embodiment of the present invention;

[0028] Figure 2 A diagram of the components of the sunlight assembly of the sunrise and sunset simulation mechanism provided by an embodiment of the present invention;

[0029] Figure 3 A diagram of the components of the sun trajectory arc mechanism of the sun rise and sunset simulation mechanism provided by an embodiment of the present invention;

[0030] Figure 4 A diagram of the components of the geographical latitude positioning mechanism of the sunrise and sunset simulation mechanism provided by an embodiment of the present invention;

[0031] Figure 5 A diagram of the components of the base of the sunrise and sunset simulation mechanism provided by an embodiment of the present invention;

[0032] Figure 6 A diagram of the components of the rotating shaft assembly of the sunrise and sunset simulation mechanism provided by an embodiment of the present invention;

[0033] Figure 7 A specific diagram of the 24-solar-term disc of the sunrise and sunset simulation mechanism provided by an embodiment of the present invention;

[0034] Figure 8 A diagram of the components of the solar term pin assembly of the sunrise and sunset simulation mechanism provided in an embodiment of the present invention.

[0035] Among them, geographic latitude positioning mechanism 1, sunshine component 2, sun trajectory arc mechanism 3, geographic latitude positioning mechanism 4, base 5, rotating shaft assembly 6, geographic latitude pressing nut 7, 24 solar term plate 8, solar term top pin assembly 9, plug pin 101, pin sleeve 102, geographic latitude pointer 103, pin screw 201, positioning wheel 202, rolling wheel 203, parallel light source 204, positioning ruler 205, arc plate 301, time scale Degrees 302, geographic latitude positioning hole 307, rotating sleeve 308, positioning shaft 309, throttle push pin mounting hole 310, base left side plate (geographic latitude plate) 501, base right side plate 502, 24 throttle plate fixing shaft 503, base body 504, tightening nut 601, sleeve 602, rotating shaft 603, rotating sleeve 604, push pin positioning plate 901, push pin housing 902, push pin spring 903, push pin 904. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings and examples.

[0037] The sunrise and sunset simulation mechanism is characterized by including a geographic latitude positioning mechanism, a sunlight assembly, a sun trajectory arc mechanism, a ground plane platform, a base, a rotating shaft assembly, a geographic latitude clamping nut, a 24-solar term disk, and a solar term push pin assembly. The base has a geographic latitude dial on its left side, and the geographic latitude positioning mechanism allows for adjustment of the geographic latitude. The sunlight assembly can be clipped onto the sun trajectory arc mechanism and moved along an arc, with a parallel light source simulating sunlight. The solar term push pin assembly can rotate along the outer edge of the 24-solar term disk, with the center of the rotating shaft assembly as the center of the circle. The outer edge of the 24-solar term disk has recesses indicating the 24 solar terms. After the solar term push pin assembly is positioned, the sunlight assembly can simulate sunlight of different solar terms along the sun trajectory arc.

[0038] The geographic latitude positioning mechanism is distributed on both sides of the base and is used for latitude adjustment of the mechanism; the positioning pin of the geographic latitude positioning mechanism is inserted into the square hole of the arc of the sun track arc mechanism, and the sun track arc mechanism is rotated to make the latitude pointer point to the local geographic latitude.

[0039] The positioning of the sunlight assembly is completed by a rolling wheel and two positioning wheels, and a parallel light source lighting system is provided at the bottom of the sunlight assembly.

[0040] The daily trajectory arc of the daily trajectory arc mechanism is an arc plate with evenly distributed teeth on the inner arc. There are scale markings of 6-18 o'clock on one side of the arc plate. There is a positioning sleeve at the lower part of the arc, a positioning shaft at the lower part, and a throttle pin assembly installation hole at the lowest part for installing the throttle pin assembly.

[0041] The ground plane platform is a square flat plate, and the upper plane thereof is flush with the axis center of the geographic latitude positioning pin mechanism.

[0042] The base is a square table structure with circular slot holes for adjusting the geographical latitude positioning mechanism and a throttle plate mounting shaft on the left and right sides.

[0043] The rotating shaft assembly consists of a central shaft, a positioning sleeve, a bearing and tightening nuts at both ends. After adjusting the geographical latitude of the sunrise and sunset simulation mechanism, tighten the nuts so that the bearing can support the 24 solar term disk to rotate.

[0044] The geographic latitude pressing nut presses the throttle disc onto the base through the throttle disc mounting shaft on the side of the base.

[0045] The names of the 24 solar terms are symmetrically engraved on the 24 solar terms disk, and pits are provided at corresponding positions on the outer edge of the bottom to facilitate the positioning of the solar term top pin assembly; each pit takes the center of the rotation axis as the rotation center, and takes the vernal equinox and the autumnal equinox as the symmetry lines, and is distributed along both sides. On the right side are: Qingming Bailu, Guyu Chushu, Lixia Liqiu, Xiaoman Dashu, Mangzhong Xiaoshu and Summer Solstice, and on the left side are: Jingzhe Hanlu, Yushui Shuangjiang, Lichun Lidong, Dahan Xiaoxue, Xiaohan Daxue and Winter Solstice.

[0046] The solar term push pin assembly is a mechanism with a spring that automatically rebounds the push pin. To adjust the solar term, pull the handle of the solar term push pin, causing the sun trajectory arc mechanism to rotate a certain angle. Release the handle, and the tip of the solar term positioning pin pushes into the recess on the 24 solar term disk, completing the sun trajectory adjustment for different solar terms.

[0047] The geographic latitude positioning mechanism is composed of a positioning pin shaft (one on each side), a positioning pin sleeve (one on each side) and a geographic latitude pointer (one on the left side).

[0048] The sunlight assembly consists of a rolling wheel, two positioning wheels, a shell, three sets of positioning screws and a parallel light source system.

[0049] The daily trajectory arc mechanism is composed of an arc plate, a positioning pin sleeve, a positioning shaft and a throttle push pin assembly mounting plate.

[0050] Example:

[0051] See also Figures 1 to 8 The sunrise and sunset simulation mechanism of the present invention includes a geographic latitude positioning mechanism 1, a sunshine component 2, a sun trajectory arc mechanism 3, a geographic latitude positioning mechanism 4, a base 5, a rotating shaft assembly 6, a geographic latitude clamping nut 7, a 24-hour solar term plate 8, a solar term top pin assembly 9 and other components. All components are installed on the base 5. The rolling wheel 203 on the sunshine component 2 can be positioned along the teeth on the inner ring of the arc plate 301 on the sun trajectory arc mechanism 3 through the positioning of the positioning wheel 202. The parallel light source 204 on the sunshine component 2 can simulate the sunlight and illuminate the objects placed on the horizontal platform 4. Through the rotation of the sun trajectory arc mechanism 3 around the rotating shaft assembly 6 and with the help of the positioning of the solar term top pin assembly 9, the changes in the azimuth angle of sunrise and sunset and the solar altitude angle during different solar terms can be simulated.

[0052] Before using the present invention, the local geographical latitude must be determined first. Only in this way can the present invention accurately simulate the changes in local sunrise and sunset between different solar terms. First, insert the top pin 904 of the solar term top pin assembly 9 into the pit at the vernal and autumnal equinox points of the 24 solar term disks, move the sun trajectory arc mechanism 3 back and forth, align the geographic latitude positioning hole 307 on the arc plate 301 with the plug-in pin 101 on the latitude positioning mechanism 1, so that the plug-in pins 101 on both sides of the base 5 can be inserted into the geographic latitude positioning holes 307 on the arc plate 301; confirm that the tightening nuts 601 and the geographic latitude clamping nuts 7 on both sides of the rotating shaft assembly 6 are in a loosened state, rotate the plug-in pin 101 to make the geographic latitude pointer 103 point to the specific geographic latitude value marked on the left side plate 501 of the base 5, adjust it left and right, and after the sun trajectory arc mechanism 3 is tilted to a certain angle (local geographic latitude), tighten the geographic latitude clamping nut, and then tighten the tightening nuts on both sides of the rotating shaft assembly 6 to ensure that the bearing 602 rotates on a fixed axis; through the above steps, the basic positioning work of the sunrise and sunset simulation mechanism of the present invention is completed, so that the working angle of the sunrise and sunset simulation mechanism is the local geographic latitude.

[0053] The sunrise and sunset simulation mechanism of the present invention was designed with the geographical latitude of my country in mind, making it applicable nationwide. The movement of the sunshade assembly around the sun's trajectory arc can be either manual or electrically driven, though the electrically driven part is not described in detail in this invention.

[0054] The method of using the sunrise and sunset simulation mechanism includes the following steps:

[0055] 1) Using the vernal and autumnal equinox markings on the 24 solar term dial as reference, secure the solar term pin assembly to the vernal and autumnal equinoxes on the 24 solar term dial. Use the axis of the geographic latitude positioning mechanism as the center of the positioning circle (insert the square head of the geographic latitude positioning pin into the square hole of the sun track arc mechanism). Rotate the sun track arc mechanism so that the coaxially rotating geographic latitude pointer points to the scale on the left side of the base. This allows the pointer to point to the local geographic latitude value, and tighten the geographic latitude compression nut.

[0056] 2) Remove the geographic latitude positioning pins on both sides from the square holes of the sun trajectory arc mechanism. The rotation center of the sun trajectory arc mechanism will become the center of the rotating shaft assembly. Move the solar term top pin assembly to observe the changes in the angles of sunrise and sunset during different solar terms.

Claims

1. A sunrise and sunset simulation mechanism, characterized in that: It includes geographic latitude positioning mechanism, sunshine assembly, sun trajectory arc mechanism, ground plane platform, base, rotating shaft assembly, geographic latitude pressing nut, 24 solar term disc and solar term top pin assembly; The left side of the base is provided with a geographic latitude dial, and the geographic latitude can be adjusted with the help of a geographic latitude positioning mechanism; The sunlight component can be clamped on the sun track arc mechanism and move along the arc, and a parallel light source can simulate the illumination of sunlight; The solar term pin assembly can rotate along the outer edge of the 24 solar term disk with the center of the rotating shaft assembly as the center of the circle. The outer edge of the 24 solar term disk has pits with the 24 solar terms marked on it. After the solar term pin assembly is positioned, the sunlight assembly can simulate sunlight of different solar terms on the arc of the sun trajectory.

2. A sunrise and sunset simulation mechanism according to claim 1, characterized in that: The geographic latitude positioning mechanism is distributed on both sides of the base and is used to adjust the latitude of the sunrise and sunset simulation mechanism; the positioning pin of the geographic latitude positioning mechanism is inserted into the square hole of the arc of the sun trajectory circular arc mechanism, and the sun trajectory circular arc mechanism is rotated to make the latitude pointer point to the local geographic latitude.

3. The sunrise and sunset simulation mechanism according to claim 1, characterized in that: The positioning of the sunlight assembly is completed by a rolling wheel and two positioning wheels, and a parallel light source lighting system is provided at the lower part of the sunlight assembly.

4. The sunrise and sunset simulation mechanism according to claim 1, characterized in that: The daily trajectory arc of the daily trajectory arc mechanism is an arc plate with evenly distributed teeth on the inner arc. There are scale markings of 6-18 o'clock on one side of the arc plate. There is a positioning sleeve at the bottom of the arc, a positioning shaft at the bottom of the positioning sleeve, and a throttle pin assembly mounting hole at the bottom for installing the throttle pin assembly.

5. The sunrise and sunset simulation mechanism according to claim 1, characterized in that: The ground plane platform is a square flat plate, and the upper plane thereof is flush with the axis center of the geographic latitude positioning pin mechanism.

6. The sunrise and sunset simulation mechanism according to claim 1, characterized in that: The base is a square table structure with circular slot holes for adjusting the geographical latitude positioning mechanism and a throttle plate mounting shaft on the left and right sides.

7. The sunrise and sunset simulation mechanism according to claim 1, characterized in that: The rotating shaft assembly consists of a central shaft, a positioning sleeve, a bearing and tightening nuts at both ends. After adjusting the geographical latitude of the sunrise and sunset simulation mechanism, tighten the nuts so that the bearing can support the 24 solar term disk to rotate.

8. The sunrise and sunset simulation mechanism according to claim 1, characterized in that: The geographic latitude pressing nut presses the throttle disc onto the base through the throttle disc mounting shaft on the side of the base.

9. The sunrise and sunset simulation mechanism according to claim 1, characterized in that: The names of the 24 solar terms are symmetrically engraved on the 24 solar terms disk, and pits are provided at corresponding positions on the outer edge of the bottom to facilitate the positioning of the solar term top pin assembly; each pit takes the center of the rotation axis as the rotation center, and takes the vernal equinox and the autumnal equinox as the symmetry lines, and is distributed along both sides. On the right side are: Qingming Bailu, Guyu Chushu, Lixia Liqiu, Xiaoman Dashu, Mangzhong Xiaoshu and Summer Solstice, and on the left side are: Jingzhe Hanlu, Yushui Shuangjiang, Lichun Lidong, Dahan Xiaoxue, Xiaohan Daxue and Winter Solstice.

10. The sunrise and sunset simulation mechanism according to claim 1, characterized in that: The solar term push pin assembly is a mechanism with a spring that allows the push pin to automatically rebound. When adjusting the solar term, pull the handle of the solar term push pin to drive the daily trajectory arc mechanism to rotate a certain angle. Release the handle to allow the tip of the solar term positioning pin to be pushed into the pit on the 24 solar term disk to complete the daily trajectory adjustment for different solar terms.

Images