Middle school geography three-ball motion demonstration model for teaching

Abstract

The utility model provides a middle school geography three-ball motion demonstration model for teaching, and belongs to the field of teaching demonstration appliances. The three-ball motion demonstration model solves the problems that a three-ball motion demonstration model in the current market is complex in mechanical structure and troublesome to assemble, wastes time and is inconvenient for students to carry out demonstration operation. A middle school geography three-ball motion demonstration model for teaching comprises a base, a rotatable simulation sun assembly is arranged in the middle of the base, a simulation earth-moon assembly is further arranged on the base, the simulation earth-moon assembly comprises an earth model and a moon model, when the simulation sun assembly rotates, the simulation earth-moon assembly rotates around the simulation sun assembly, and when the simulation sun assembly rotates, the simulation earth-moon assembly rotates around the earth model. The earth model rotates, and the moon model rotates around the earth model. The device has the advantages of simple structure, easy assembly and disassembly, convenient operation and visual demonstration effect.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching demonstration tools, in particular to a three-ball sports demonstration model for geography teaching in middle schools. Background Art

[0002] Demonstrate the motion of the sun, earth, and moon in junior high school geography classes. The 2022 Compulsory Education Curriculum Standards require that science instruction incorporate the development of engineering skills. Students are required to create a model demonstrating the motion of three balls.

[0003] However, the mechanical structure of the three-ball sports demonstration model on the market is very complex and not suitable for junior high school students. In addition, due to its complex structure, it takes students a long time to assemble it, wasting their precious time. Secondly, the complex structure is not convenient for students to perform demonstration operations. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a three-ball sports demonstration model for geography teaching in middle schools. The model has the advantages of simple structure, easy assembly and disassembly, convenient operation, and intuitive demonstration effects. This solves the problem that the three-ball sports demonstration models currently on the market have complex mechanical structures and are not suitable for junior high school students. In addition, due to the complex structure, students need to spend a long time to assemble the model, wasting their valuable time. Furthermore, the complex structure makes it difficult for students to operate the demonstration.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose of simple structure, easy assembly and disassembly, convenient operation, and intuitive demonstration effect, the utility model provides the following technical solution: a middle school geography three-ball sports demonstration model for teaching, including a base, a rotatable simulated sun component is provided in the middle part of the base, and a simulated earth-moon component is also provided on the base. The simulated earth-moon component includes an earth model and a moon model. When the simulated sun component rotates, the simulated earth-moon component rotates around the simulated sun component, causing the earth model to rotate and the moon model to rotate around the earth model.

[0008] Preferably, the base includes a bottom plate, an inner annular surface of the bottom plate is provided with meshing teeth, a circular panel is covered on the top of the bottom plate, and a handhold is provided on the outer surface of the bottom plate.

[0009] Preferably, the simulated sun component includes a gear 1, a rotating shaft 1 passing through the gear 1 is provided in the middle of the gear 1, and the part of the rotating shaft 1 extending from the bottom of the gear 1 is inserted into the middle of the base plate.

[0010] Preferably, a pulley 1, an LED light and a knob are fixedly arranged on a rotating shaft 1 above the gear 1 in sequence.

[0011] Preferably, one end of a shaft fixer is fixedly provided below the first pulley.

[0012] Preferably, the simulated Earth-Moon assembly includes a second gear, which is assembled between the inner annular surface of the base plate and the first gear, and meshes with both of them respectively.

[0013] Preferably, a second rotating shaft is fixedly provided in the middle of the second gear, and a globe model is installed on the top of the second rotating shaft.

[0014] Preferably, a linkage assembly is provided above the second gear, and the linkage assembly includes a second pulley, a bearing is installed in the middle of the second pulley, and the bearing sleeve is provided on the second rotating shaft. A disc is also provided above the second pulley.

[0015] Preferably, a moon model having the same height as the earth model is provided on the side of the disk.

[0016] Preferably, the other end of the shaft fixer is rotatably arranged on the rotating shaft 2 between the gear 2 and the pulley 2, and a belt is arranged between the pulley 2 and the pulley 1.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a geography three-ball sports demonstration model for middle school teaching, which has the following beneficial effects:

[0019] This three-ball geography model, designed for teaching middle school students, utilizes a base, a simulated solar assembly, and a simulated Earth-Moon assembly. To use it, the components must be assembled. After assembly, turn the knob counterclockwise, which rotates shaft 1, which in turn rotates gear 1 counterclockwise. This rotation of gear 1 further rotates gear 2, which meshes with it. The rotation of gear 2 causes the entire simulated Earth-Moon assembly to move in a circular motion from west to east around the simulated solar assembly. Furthermore, the clockwise rotation of gear 2 rotates shaft 2, which in turn causes the Earth model atop shaft 2 to rotate.

[0020] Since Gear 2 rotates clockwise, if the Moon model were fixed directly to the edge of Gear 2, it would orbit the Sun from east to west, contradicting reality. Therefore, a pulley mechanism is provided. When Shaft 1 rotates counterclockwise, it drives Pulley 1, the fixed pulley, counterclockwise. Due to the transmission between the belts and the bearing between Pulley 2, Pulley 2 rotates in the opposite direction of Shaft 2. Pulley 2 rotates counterclockwise, driving the disc counterclockwise, thus causing the Moon model to orbit the Earth model from west to east.

[0021] Thus, the effects of simple structure, easy assembly and disassembly, convenient operation and intuitive demonstration effect are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of a three-ball sports demonstration model for geography in middle schools for teaching;

[0023] Figure 2 A side view of a geography three-ball sports demonstration model for teaching middle school;

[0024] Figure 3 This is a top view of a three-ball sports demonstration model for geography in middle schools for teaching;

[0025] Figure 4 This is a schematic diagram of the linkage component structure of a three-ball sports demonstration model for geography in middle schools for teaching;

[0026] Figure 5 A side view of the linkage components of a three-ball sports demonstration model for geography in middle schools for teaching;

[0027] Figure 6 This is a cross-sectional view of the AA position of a linkage assembly for a three-ball sports demonstration for middle school geography teaching.

[0028] In the picture:

[0029] 1. Base, 11. Bottom plate, 12. Panel, 13. Handhold,

[0030] 2. Simulated sun assembly, 21. Gear 1, 22. Pulley 1, 23. Shaft 1, 24. LED light, 25. Knob,

[0031] 3. Earth-Moon Simulation Assembly, 31. Gear 2, 32. Linkage Assembly, 321. Disc, 322. Bearing, 323. Pulley 2, 33. Rotating Shaft 2, 34. Earth Model, 35. Moon Model,

[0032] 4. Shaft retainer,

[0033] 5. Belt. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figure 1-6 A high school geography three-ball motion demonstration model for teaching includes a base 1, which serves as the foundational support for the entire model. A rotatable simulated sun assembly 2 is located in the middle of base 1. Also located on base 1 is a simulated earth-moon assembly 3, which includes an earth model 34 and a moon model 35. When simulated sun assembly 2 rotates, simulated earth-moon assembly 3 rotates around it, causing earth model 34 to rotate and moon model 35 to rotate around it. Simulated sun assembly 2 simulates the sun's rotation, while simulated earth-moon assembly 3 simulates the Earth's revolution around the sun, the Moon's revolution around the Earth, and the Earth's rotation, presenting the entire three-ball motion.

[0036] The base 1 includes a bottom plate 11, the inner annular surface of which is provided with meshing teeth, a circular panel 12 covering the top of the bottom plate 11, and a handhold 13 provided on the outer surface of the bottom plate 11. The meshing teeth on the inner annular surface of the bottom plate 11 are used to engage with the gear 2 31 in the simulated Earth-Moon assembly 3 to achieve rotational transmission. The circular panel 12 covers the top of the bottom plate 11 to provide external protection for the model. Some teaching information or logos can be provided on the panel 12. The handhold 13 is provided on the outer surface of the bottom plate 11 to facilitate teachers or students to hold the base 1 for demonstration or movement.

[0037] The simulated solar assembly 2 includes Gear 1 21, one of its transmission components. Its rotation drives Gear 2 31 of the simulated Earth-Moon assembly 3. A shaft 1 23 extends through the center of Gear 1 21. The portion of shaft 1 23 that extends below Gear 1 21 is inserted into the center of the base plate 11. Shaft 1 23 serves primarily as a positioning and securing mechanism, anchoring the entire simulated solar assembly 2 to the center of the base plate 11. It also provides support for the mounting of other components. Finally, it serves as the intermediate transmission component, transmitting the rotation of the top knob 25 to Gear 1 21.

[0038] A pulley 1 (22), LED light 24, and knob 25 are fixed to shaft 1 (23) above gear 1 (21). LED light 24 simulates the sun, enhancing the demonstration effect. Furthermore, the height of LED light 24 should be the same as that of Earth model 34, indicating that both are in the same plane and more realistic. Knob 25 is located at the top of shaft 1 (23) to facilitate manual rotation of the simulated sun assembly 2 to initiate the demonstration. Pulley 1 (22) is fixed to shaft 1 (23) and connected to pulley 2 (323) via belt 5, enabling indirect power transmission.

[0039] One end of a shaft retainer 4 is also fixedly mounted below pulley 1 22. One end of shaft retainer 4 is fixedly connected to rotating shaft 1 23 below pulley 1 22, and the other end is rotatably connected to rotating shaft 2 33. When simulated solar module 2 rotates counterclockwise, gear 1 21 drives gear 2 31 to rotate, causing gear 2 31 to rotate counterclockwise around gear 1 21. To ensure the stability of the counterclockwise rotation of gear 2 31 around gear 1 21, the other end of shaft retainer 4 is rotatably connected to rotating shaft 2 33. The counterclockwise rotation of rotating shaft 1 23 drives shaft retainer 4 counterclockwise, which in turn drives gear 2 31 counterclockwise around gear 1 21, thereby enhancing operational stability.

[0040] The Earth-Moon simulation assembly 3 includes Gear 2 31, which is mounted between the inner annular surface of the base plate 11 and Gear 1 21, meshing with both. Gear 2 31 is mounted between the inner annular surface of the base plate 11 and Gear 1 21, meshing with both. The rotation of Gear 1 21 drives Gear 2 31's rotation, simulating the Earth's orbit around the Sun.

[0041] A second rotating shaft 33 is fixed to the center of gear 2 31 , and a globe model 34 is mounted on top of the second rotating shaft 33 . This shaft 33 is fixed to the center of gear 2 31 , with the globe model 34 mounted on top, serving as the axis of the Earth's rotation. Rotation of gear 2 31 drives the second rotating shaft 33 , which in turn drives the globe model 34 mounted on it to rotate.

[0042] A linkage assembly 32 is located above gear 2 31. This assembly includes a second pulley 323. A bearing 322 is mounted in the middle of pulley 323, which fits around shaft 2 33. A disk 321 is also located above pulley 323. This linkage assembly 32 is designed to ensure that the lunar model 35 orbits the Earth from west to east, the same direction as gear 2 31's rotation, and more realistically. The bearing 322 mounted in the middle of pulley 323 fits around shaft 2 33, meaning that rotation of shaft 2 33 does not cause pulley 323 to rotate. When shaft 1 23 rotates counterclockwise, it drives fixed pulley 1 22 counterclockwise. Due to the transmission between the belts 5 and the bearing 322 between pulley 2 323, pulley 2 323 rotates in the opposite direction of shaft 2 33. Pulley 2 323 rotates counterclockwise, thereby driving disk 321 fixed to pulley 2 323 counterclockwise. A moon model 35, mounted on the side of disk 321 and at the same height as earth model 34, moves in a circular motion from west to east around earth model 34, driven by disk 321.

[0043] Working Principle: To use the device, all components must be assembled. Once assembled, turn knob 25 counterclockwise, which rotates shaft 1 23, thereby rotating gear 1 21 counterclockwise. This rotation of gear 1 21 further rotates gear 2 31, which meshes with it. The rotation of gear 2 31 causes the entire Earth-Moon simulated assembly 3 to move in a circular motion from west to east around the Sun simulated assembly 2. Furthermore, the clockwise rotation of gear 2 31 rotates shaft 2 33, which in turn causes the Earth model 34 on top of shaft 2 33 to rotate.

[0044] Since Gear 2 31 rotates clockwise, if the Moon model 35 were directly fixed to the edge of Gear 2 31, the Moon model 35 would rotate around the Sun from east to west, which is contrary to reality. Therefore, a pulley structure is provided. When Shaft 1 23 rotates counterclockwise, it drives Fixed Pulley 1 22 to rotate counterclockwise. Due to the transmission between the belts 5 and the bearing 322 between Pulley 2 323, the rotation direction of Pulley 2 323 can be opposite to that of Shaft 2 33. Pulley 2 323 rotates counterclockwise, thereby driving the disc 321 to rotate counterclockwise, thus achieving the movement of the Moon model 35 around the Earth model 34 from west to east.

[0045] Thus, the effects of simple structure, easy assembly and disassembly, convenient operation and intuitive demonstration effect are achieved.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-ball sports demonstration model for geography teaching in middle schools, characterized by: The invention comprises a base (1), wherein a rotatable simulated solar component (2) is provided in the middle of the base (1), and a simulated earth-moon component (3) is further provided on the base (1), wherein the simulated earth-moon component (3) comprises an earth model (34) and a moon model (35), and when the simulated solar component (2) rotates, the simulated earth-moon component (3) rotates around the simulated solar component (2), causing the earth model (34) to rotate, and the moon model (35) to rotate around the earth model (34).

2. The teaching middle school geography three-ball sports demonstration model according to claim 1, characterized in that: The base (1) comprises a bottom plate (11), an inner annular surface of the bottom plate (11) is provided with meshing teeth, a circular panel (12) is covered on the top of the bottom plate (11), and a handhold (13) is provided on the outer surface of the bottom plate (11).

3. The teaching geography three-ball sports demonstration model for middle schools according to claim 1, characterized in that: The simulated sun assembly (2) includes a gear one (21), a rotating shaft one (23) penetrating the gear one (21) is provided in the middle of the gear one (21), and the portion of the rotating shaft one (23) extending below the gear one (21) is inserted into the middle of the bottom plate (11).

4. The teaching geography three-ball sports demonstration model for middle schools according to claim 3, characterized in that: A pulley (22), an LED light (24) and a knob (25) are fixedly arranged on a rotating shaft (23) above the gear (21) in sequence.

5. The teaching geography three-ball sports demonstration model for middle schools according to claim 4, characterized in that: One end of a shaft fixer (4) is also fixedly provided below the pulley 1 (22).

6. The teaching geography three-ball sports demonstration model for middle schools according to claim 1, characterized in that: The simulated earth-moon assembly (3) includes a second gear (31), which is assembled between the inner annular surface of the base plate (11) and the first gear (21), and meshes with the two respectively.

7. The teaching geography three-ball sports demonstration model for middle schools according to claim 6, characterized in that: A second rotating shaft (33) is fixedly provided in the middle of the second gear (31), and a globe model (34) is installed on the top of the second rotating shaft (33).

8. The teaching geography three-ball sports demonstration model for middle schools according to claim 6, characterized in that: A linkage assembly (32) is provided above the second gear (31), and the linkage assembly (32) includes a second pulley (323). A bearing (322) is installed in the middle of the second pulley (323), and the bearing (322) is sleeved on the second rotating shaft (33). A disc (321) is also provided above the second pulley (323).

9. The teaching geography three-ball sports demonstration model for middle schools according to claim 8, characterized in that: A moon model (35) having the same height as the earth model (34) is provided on the side of the disk (321).

10. The teaching geography three-ball sports demonstration model for middle schools according to claim 5, characterized in that: The other end of the shaft fixer (4) is rotatably arranged on the rotating shaft 2 (33) between the gear 2 (31) and the pulley 2 (323), and a belt (5) is arranged between the pulley 2 (323) and the pulley 1 (22).

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