Teaching tool for demonstrating movement of planet of solar system

Abstract

The invention discloses a teaching tool for demonstrating the movement of the planet of the solar system. The teaching tool comprises a base, a support column, a first electric berating, a sun model, a second support rod, a connecting rod and a Mercury model, wherein a lithium battery is arranged in the base and in circuit connection with a controller, the support column is fixedly connected to the top of the base, the sun model is in bearing connection to the top of the support column through the first electric bearing, the support column is in bearing connection with a first support rod through a second electric bearing, the second support rod is fixedly connected to one side of the first support rod, the connecting rod is in bearing connection with the top of the second support rod through a rotary shaft, and the connecting rod is in bearing connection with the Mercury model through a third electric bearing. The teaching tool is simple in structure, capable of precisely demonstrating the movement rule of the eight large planets of the solar system, capable of allowing students to learn about the eight large planets vividly, high in stability and easy to machine and manufacture, and the cost of the teaching tool can be well controlled.

Description

technical field [0001] The invention relates to a teaching demonstration device, in particular to a teaching aid for demonstration of the operation of planets in the solar system. Background technique [0002] At present, there are two ways to demonstrate the movement of planets in the classroom. One is to use optical projection equipment, such as a projector [0003] display. However, this method cannot intuitively feel the movement of celestial bodies, and the visual impact it brings cannot be compared with the physical demonstration. The second is to use a physical model, which has a better visual effect than image display, but the current commercially available instruments are either static display, unable to understand the law of motion; or dynamic display, but the structure is complex, the volume is large, and the ratio of rotation and revolution is unscientific According to, and the knowledge has not been updated, such as the patent disclosed in the patent No. 97239...

AI Technical Summary

Problems solved by technology

However, this method cannot intuitively feel the movement of celestial bodies, and the visual impact it brings cannot be compared with the physical demonstration

The second is to use a physical model, which has a better visual effect than image display, but the current commercially available instruments are either static display, unable to understand the law of motion; or dynamic display, but the structure is complex, the volume is large, and the ratio of rotation and revolution is unscientific According to, and the knowledge has not been updated, such as the patent disclosed in the patent No. 97239165.7 with the application date of 1997.11. In Resolution No. 5, Pluto was classified as a dwarf planet and named as asteroid 134340. It was removed from the nine planets in the solar system, so now there are only eight planets in the solar system

Therefore, the existing demonstration instruments cannot solve the above problems very well, which limits the promotion and application of the demonstration devices for the eight planets in the solar system, and requires a good solution

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