CN213582796U

CN213582796U - Sun, earth and moon integrated instrument

Info

Publication number: CN213582796U
Application number: CN202022443634.8U
Authority: CN
Inventors: 罗德军
Original assignee: Jianghan University
Current assignee: Jianghan University
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-29
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to an appurtenance of celestial body space teaching, the three-dimensional teaching equipment who shows sun, earth and moon motion relation directly perceivedly that specifically says so, the integrative appearance of sun earth moon promptly, including the sun body, the earth body, the moon body and oval annular groove and chain guide etc.. The earth body can rotate around the sun body along the chain guide rail, the earth body can also rotate around the axis of the earth body, and the moon body is rotatably connected with the earth support through the connecting rod, so that the moon can move around the earth. According to different position relations of the sun and the earth, the dial outside the oval annular groove marks twenty-four solar terms. Use the utility model discloses can let the earth turn into the image specifically around the time and the spatial variation that the earth rotation arouses, moon around the sun, let the student easily understand, and then improve learning efficiency.

Description

Sun, earth and moon integrated instrument

Technical Field

The utility model relates to an appurtenance of celestial body space teaching specifically says so a three-dimensional teaching equipment that shows sun, earth and moon motion relation directly perceived.

Background

At present, video teaching materials are quite abundant, but in the actual teaching experience, when many teachers and students study and discuss natural science or geography, difficulties still exist in understanding and cognition of relative relationships among the sun, the earth and the moon. For example, twenty-four solar terms are included in the four seasons of the year, and solar eclipses, lunar eclipses, aurora and the like are frequently present in the space. Meanwhile, in the existing globe for teaching, most of the earth globe rotates on the central shaft, the earth globe rotates and revolves around the sun body at one end far away from the sun, and the orbit of the earth globe rotating around the sun body is a circular orbit and has a far difference with the actual elliptical orbit of the earth globe revolving around the sun body. Therefore, it is difficult for many students to associate the time and space changes in real life with the relative movement process between the sun body, the earth body and the moon body, which leads to a hard understanding of the learning process, and further to insufficient learning desire, and gradually loses learning interest.

Disclosure of Invention

An object of the utility model is to the aforesaid not enough, provide an integrative appearance of sun earth moon, the three-dimensional show earth body of ability is around the space variation process of sun revolution and moon body around earth body revolution, improves the efficiency of teaching and study.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

the utility model provides an integrative appearance of sun earth moon, includes the sun body, the earth body, the moon body, pillar, pivot, back shaft, connecting rod, positioning disk, chain guide, its characterized in that: the positioning disk is the annular and passes through the pillar fixedly, the sun body passes through the pillar to be fixed at the planar middle part at positioning disk place, be equipped with the oval annular groove around the sun body on the positioning disk, install slidable chain guide in the oval annular groove, the earth spheroid is installed in the pivot with rotating, the pivot is passed through the bracing piece and is installed on the earth base, the earth base is fixed on the section chain of chain guide, the moon spheroid pass through the connecting rod with the bracing piece links to each other, the moon spheroid can rotate at the one end of connecting rod, the other end of connecting rod can be around the bracing piece rotation.

Preferably, the cross section of the oval annular groove is in a convex shape, a chain guide rail is arranged in the annular groove, the chain guide rail is formed by mutually hinging a plurality of chain links end to end, and each chain link is provided with chain wings extending to two sides of the cross section of the annular groove.

Preferably, the positioning disc is provided with twenty-four positioning marks arranged along the annular groove and used for marking twenty-four solar terms, and the included angle between the rotating shaft provided with the earth sphere and the plane of the positioning disc is 66-degree 34'.

Preferably, the sun body is a transparent sphere, and a light emitting diode is installed in the sun body and is controlled by a switch to emit light.

The utility model has the advantages that: utilize the oval track of chain orbit imitation earth revolution, through luminous sun body, at the earth body around the in-process of sun body revolution, the moon body is rotatory around the earth body, can show natural phenomena such as solar eclipse, lunar eclipse, morning and evening tides specifically vividly, simultaneously, specifically explains twenty solar terms and produces and alternate reason, lets the teaching have a trace to follow, and the student can pass through the utility model discloses the instrument can objectively know the relative motion relation of sun earth moon and its spatial position change orbit.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the earth ball and moon ball of the present invention;

FIG. 3 is a schematic view of the chain guide in the oval annular groove of the present invention;

FIG. 4 is a schematic view of the solar eclipse structure of the present invention;

in the figure: 1-sun body, 2-earth body, 3-moon body, 21-rotating shaft, 41-supporting rod, 42-connecting rod, 5-earth base, 6-integrated instrument base, 7-supporting column, 8-elliptical ring groove, 9-chain guide rail, 91-chain section, 92-chain wing, 10-positioning disk and 11-positioning mark.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 2, the present invention provides a sun, earth and moon integrated instrument, which comprises a sun body 1, a globe body 2, a moon body 3, an oval annular groove 8, a chain guide 9, a positioning plate 10, etc. Wherein, positioning disk 10 is annular and fixes on integrative appearance base 6 through pillar 7, and oval annular groove 8 is installed on positioning disk 10, and sun body 1 is located a focus of oval annular groove 8 to fix on the plane of positioning disk 10 through pillar 7. The earth body 2 is rotatably mounted on the rotating shaft 21, the rotating shaft 21 is mounted on the earth base 5 through the supporting rod 41, and the earth base 5 is fixed on the chain section 91 of the chain guide 9. One end of the connecting rod 42 is provided with the moon body 3, the moon body 3 can rotate around the connecting rod 42, and the other end of the connecting rod 42 is connected to the supporting rod 41 and can rotate around the supporting rod 41.

As shown in a part a in fig. 3 and a part b in fig. 3, the cross section of the oval annular groove 8 is in a shape of a Chinese character 'tu', the chain guide 9 is installed in the oval annular groove 8, the chain guide 9 is formed by hinging a plurality of chain sections 91 end to end, and chain wings 92 are arranged on two sides of each chain section 91.

In the using process, the earth body 2 rotates around the rotating shaft 21 for a circle for one day, the moon body 3 rotates around the earth body 2 for a circle for one month under the driving of the connecting rod 42, and the earth body 2 slides along the elliptical annular groove 8 for a circle for 1 year through the supporting rod 41 and the earth base 5 under the driving of the chain guide 9. When the sun body 1 is electrified to emit light, the hemisphere of the earth body 2 facing the sun body 1 is in the daytime, and the hemisphere of the earth body 2 facing away from the sun body 1 is in the night time.

In the rotation process of the earth body 2 around the rotating shaft 21, when the sea surface on the earth body 2 faces the moon body 3, the sea surface can generate a tidal rise phenomenon, and after the earth body 2 continues to rotate, along with the rotation of the earth body 2, when the sea surface is far away from the moon body 3, the sea surface can generate a tidal fall phenomenon.

When the moon body 3 rotates around the earth body 2, the position relationship among the moon body 3, the earth body 2 and the sun body 1 is changed continuously, when the moon body 3 is completely illuminated by the light emitted by the sun body 1, the moon body is in a full moon state, and when the moon body 3 is partially illuminated by the light emitted by the sun body 1, the moon body is in a half moon state.

When the ground sphere 2 moves around the sun body 1 along the elliptical annular groove 8, the light emitted by the sun body 1 vertically irradiates the north return line of the ground sphere 2 and is at the summer arrival time point, at this time, the ground sphere 2 is located at the summer arrival position marked on the elliptical annular groove 8, the ground sphere 2 moves in the direction away from the sun body 1, the direct point moves towards the equator of the ground sphere 2, when the light emitted by the sun body 1 vertically irradiates the equator of the ground sphere 2, the time point is at the autumn arrival time point, the direct point continues to move towards the south hemisphere of the ground sphere 2 along with the further movement of the ground sphere 2, when the light emitted by the sun body 1 vertically irradiates the south return line of the ground sphere 2, the time point is at the winter arrival time point, and half of the time has passed in one year. In the next half year, the direct point of the sun body 1 emitting light to the earth body 2 moves to the north hemisphere, when the light emitted by the sun body 1 vertically irradiates the equator of the earth body 2 again, the time point is in the spring minute time point, when the direct point moves to the north, the direct point returns to the return line of the earth body 2, the time point is in the summer solstice, and the season alternation of one year is completed.

As shown in fig. 4, the moon body 3 is located at the middle position between the earth body 2 and the sun body 1, the moon body 3 starts to block the light emitted by the sun body 1, and when the light starts to be blocked, a part of people on the earth body 2 can see the solar eclipse; when the centers of the three spheres are in a straight line or nearly in a straight line, the moon body 3 completely enters the range of the light rays irradiated by the sun body 1 to the earth body 2, and a part of people on the earth body 2 can see the whole day food. Meanwhile, when the moon body 3 is positioned at one end far away from the sun body 1, namely the earth body 2 is positioned at the middle position, and the three spheres are positioned on a straight line or nearly on a straight line, the earth body 2 blocks the light of the sun body 1 irradiating the moon body 3, and the moon food is generated.

Use the utility model discloses can let the earth turn into the concrete object that tentacle can reach around the natural phenomenon of the rotatory time that arouses of sun, moon around earth and space variation, let the student easily learn understandably, and then improve learning efficiency.

Claims

1. Integrative appearance of sun earth moon, including the sun body, earth body, moon body, pillar, pivot, back shaft, connecting rod, positioning disk, chain guide, its characterized in that: the positioning disk is the annular and passes through the pillar fixedly, the sun body passes through the pillar to be fixed at the planar middle part at positioning disk place, be equipped with the oval annular groove around the sun body on the positioning disk, install slidable chain guide in the oval annular groove, the earth spheroid is installed in the pivot with rotating, the pivot is passed through the bracing piece and is installed on the earth base, the earth base is fixed on the section chain of chain guide, the moon spheroid pass through the connecting rod with the bracing piece links to each other, the moon spheroid can rotate at the one end of connecting rod, the other end of connecting rod can be around the bracing piece rotation.

2. The sun, earth and moon integrated instrument according to claim 1, wherein: the cross section of the oval annular groove is in a convex shape, a chain guide rail is arranged in the annular groove, the chain guide rail is formed by mutually hinging a plurality of chain links end to end, and each chain link is provided with a chain wing extending to two sides of the cross section of the annular groove.

3. The sun, earth and moon integrated instrument according to claim 1, wherein: the positioning disc is provided with twenty-four positioning marks arranged along the annular groove and used for marking twenty-four solar terms, and the included angle between the rotating shaft provided with the earth ball body and the plane of the positioning disc is 66-degree 34'.