A three-ball instrument convenient to assemble and low in cost

Abstract

The utility model discloses a low -cost three ball instrument convenient to assemble, including base, sun model, earth model, moon model, still include drive arrangement, multistage drive gear group, multistage drive gear group includes primary gear group, secondary gear group, tertiary gear group, be provided with bottom support and bottom disc tooth on the base, and have transmission lower mounting bracket, transmission upper mounting box through bottom support installation connection, primary gear group drives earth model rotation, secondary gear group drives moon model rotation, transmission lower mounting bracket is installed respectively with upper linkage gear, lower linkage gear, and multistage drive gear group drives relative between lower linkage gear and bottom disc tooth, so that earth model, moon model rotates around sun model, the transmission structure design convenient to assemble connection of the utility model design can choose the free assembling mode of board material, realizes the low -cost use of three ball instrument, and can realize three ball instrument model various use function's demonstration, and the utility model discloses convenient for popularization and use.

Description

Technical Field

[0001] This utility model relates to the field of teaching instrument technology, specifically to a three-sphere instrument that is easy to assemble and has low cost. Background Technology

[0002] Currently, the solar system is often taught in primary and secondary school, but it is usually taught in isolation, which is not intuitive and makes it difficult for students to understand and recognize the solar system as a whole.

[0003] Therefore, the current three-sphere system (Sun, Earth, Moon, and Earth) was developed, which can comprehensively demonstrate the operation of the solar system and is mainly used for teaching demonstrations to facilitate student memorization and understanding. Currently, most three-sphere systems sold on the market are manual or electric. The existing structures of three-sphere systems, whether manual or electric, are relatively complex, making assembly, demonstration, and use inconvenient. This also leads to high prices and operating costs, making it very difficult to popularize and use. Therefore, it is essential to address these problems and shortcomings. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to provide a three-sphere instrument that is easy to assemble and has low cost.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A three-sphere model that is easy to assemble and low-cost includes a base, a sun model, an earth model, and a moon model. Its key feature is that it further includes a drive unit and a multi-stage drive gear set, which is connected to the drive unit. The multi-stage drive gear set includes a first-stage gear set, a second-stage gear set, and a third-stage gear set. The base is equipped with a base bracket for mounting the sun model and a base gear set. A lower drive mounting bracket and an upper drive mounting box are mounted on the base bracket. The lower drive mounting bracket and the upper drive mounting box are connected by a coupling. The first-stage gear set is mounted on the upper drive mounting box and is connected to the drive unit. The drive mechanism and the secondary gear set are connected for transmission. The primary gear set drives the Earth model to rotate, and the secondary gear set drives the Moon model to rotate. The transmission lower mounting frame is rotatably connected to the base support. The tertiary gear set is installed between the transmission lower mounting frame and the transmission lower mounting frame. The upper linkage gear and the lower linkage gear are respectively installed on the transmission lower mounting frame. The upper linkage gear is connected to the secondary gear set for transmission. The upper linkage gear passes through the tertiary gear set and is fixedly connected to the lower linkage gear. The lower linkage gear is connected to the chassis gear for transmission. The multi-stage drive gear set causes the Earth model and the Moon model to rotate around the Sun model through the relative drive between the lower linkage gear and the chassis gear.

[0006] In the aforementioned easy-to-assemble, low-cost three-sphere instrument, the base includes a base body, an upper plate, a lower plate, and multiple base legs. The upper and lower plates are snapped together with the base body, and the multiple base legs are snapped together with the lower plate. Reinforcing plates are snapped together between the multiple base legs. The bottom support is formed by two brackets snapping together to form a cross shape. The bottom support is snapped together with the upper and lower plates. The solar model is secured to the bottom support via a connecting rod. One end of the transmission lower mounting bracket is rotatably connected to the bottom support via a pressure cap. The bottom plate gear is set inside the upper plate and meshes with the lower linkage gear for transmission. The lower linkage gear is connected to the upper linkage gear for transmission.

[0007] In the aforementioned easy-to-assemble and low-cost three-sphere instrument, the three-stage gear set between the transmission lower mounting frame consists of multiple three-stage gears. The transmission lower mounting frame consists of upper and lower frame plates. A connecting shaft passes through one end of the transmission lower mounting frame. Multiple three-stage gears mesh and rotate between the two frame plates. One three-stage gear at one end of the three-stage gear set is fixed with the bottom bracket by a snap-fit, and the three-stage gear at the other end is tightly fitted and fixed with the connecting shaft. The coupling on the upper linkage gear passes through one of the three-stage gears and is tightly fitted and fixed to the lower linkage gear. The upper linkage gear is also connected to the two-stage gear set for transmission.

[0008] In the aforementioned easy-to-assemble, low-cost three-sphere instrument, the secondary gear set includes a secondary large gear and a secondary small gear. The secondary large gear and the secondary small gear are installed via a coupling shaft, which is fixedly connected to the upper mounting box of the transmission. The coupling shaft passes through the two plates of the secondary gear set and the lower mounting frame of the transmission, and is tightly fitted with a third gear at the end of the tertiary gear set. The moon model is connected to the secondary large gear via a connecting rod. The secondary gear set is connected to the primary gear set via the secondary large gear. The earth model on the upper mounting box of the transmission rotates through the coupling shaft and the cooperation of the tertiary gear set.

[0009] In the aforementioned three-sphere model that is easy to assemble and has low cost, the primary gear set includes gear one, gear two, and gear three. Gear one is installed in the transmission mounting box, gear two is rotatably connected to the bottom of the transmission mounting box, gear three is fixedly snapped to gear two, the secondary large gear supports gear two, and gear one is rotatably connected to gear two through gear components, and simultaneously drives the Earth model to rotate.

[0010] In the aforementioned three-sphere instrument that is easy to assemble and has low cost, the transmission mounting box includes a box body and a bottom cover. The box body and the bottom cover are fixedly connected, and the connecting shaft is fixedly connected to the bottom cover. The box body is provided with a fixed column for mounting the earth model. The earth model is rotatably connected to the shaft on the first gear through the model shaft and the rotating spring. The shaft is also fixedly connected to the gear component.

[0011] In the aforementioned three-sphere system that is easy to assemble and has low cost, the Earth model is connected to a fixed column via a model support. The model support includes a support base and a model hinge frame. The support base is installed and connected to the fixed column, and the model hinge frame is snapped to the support base via clips. The Earth model is rotatably connected to the model hinge frame via a model shaft.

[0012] In the aforementioned three-sphere apparatus that is easy to assemble and has low cost, a manual knob is provided at the end of the model shaft.

[0013] In the aforementioned three-ball apparatus that is easy to assemble and has low cost, the second gear is provided with multiple slots, and the third gear is provided with a locking boss that corresponds to the slots.

[0014] In the aforementioned easy-to-assemble, low-cost three-sphere instrument, the driving device includes a battery that powers it, and the driving device is selected as a motor.

[0015] The advantages of this utility model: The transmission structure of this utility model is designed to facilitate assembly and connection. It allows for free assembly of sheet metal, enabling low-cost use of the trisphere. It can also demonstrate various functions of the trisphere model. The structure is simple, improves hands-on skills and hand-eye coordination, and is both educational and entertaining. It helps cultivate interest in astronomy and science and technology and is easy to popularize. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is an exploded view of the upper drive device of this utility model; Figure 3 This is an exploded view of the lower base portion of this utility model; Figure 4 This is a three-dimensional schematic diagram of gear two in this utility model; Figure 5 This is a three-dimensional schematic diagram of gear three in this utility model. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0023] Please see Figures 1 to 5The embodiment provided here is a three-sphere model that is easy to assemble and has low cost, including a base 1, a sun model 2, an earth model 3, and a moon model 4; it also includes a drive device 5 and a multi-stage drive gear set, which is connected to the drive device 5. The multi-stage drive gear set includes a first-stage gear set 6, a second-stage gear set 7, and a third-stage gear set 8. The base 1 is provided with a base bracket 9 for mounting the sun model 2 and a base gear set 10. A lower transmission mounting bracket 11 and an upper transmission mounting box 12 are mounted and connected to the base bracket 9. The lower transmission mounting bracket 11 and the upper transmission mounting box 12 are connected by a coupling 13. The lower transmission mounting bracket 11 is provided with a pointer. The first-stage gear set 6 is mounted on the upper transmission mounting box 12. 6 is connected to the drive device 5 and the secondary gear set 7 respectively. The primary gear set 6 drives the Earth model 3 to rotate, and the secondary gear set 7 drives the Moon model 4 to rotate. The transmission lower mounting frame 11 is rotatably connected to the base support 9. The tertiary gear set 8 is installed between the transmission lower mounting frame 11. The transmission lower mounting frame 11 is respectively equipped with an upper linkage gear 14 and a lower linkage gear 15. The upper linkage gear 14 is connected to the secondary gear set 7. The upper linkage gear 14 passes through the tertiary gear set 8 and is fixedly connected to the lower linkage gear 15. The lower linkage gear 15 is meshed with the chassis gear 10 for transmission. The multi-stage drive gear set causes the Earth model 3 and the Moon model 4 to rotate around the Sun model 2 through the relative drive between the lower linkage gear 15 and the chassis gear 10.

[0024] Furthermore, the base 1 includes a base body 16, an upper plate 17, a lower plate 18, and multiple base legs 19. The upper plate 17 and the lower plate 18 are respectively snapped to the base body 16, and the multiple base legs 19 are respectively snapped to the lower plate 18. To improve the firmness of the connection, a reinforcing plate 39 is snapped between the multiple base legs 19. The bottom bracket 9 is formed by two brackets 9-1 snapping together to form a cross shape. The bottom bracket 9 is snapped to the upper plate 17 and the lower plate 18. The solar model 2 is secured to the bottom bracket 9 through a connecting rod 20. One end of the transmission lower mounting bracket 11 is rotatably connected to the bottom bracket 9 through a pressure cap 21. The bottom plate gear 10 is set in the upper plate 17 and meshes with the lower linkage gear 15 for transmission. The lower linkage gear 15 is connected to the upper linkage gear 14 through a three-stage gear set 8.

[0025] Furthermore, the three-stage gear set 8 between the transmission lower mounting bracket 11 is composed of multiple three-stage gears 22. The transmission lower mounting bracket 11 is composed of two upper and lower bracket plates 11-1. The connecting shaft 13 passes through one end of the transmission lower mounting bracket 11. The multiple three-stage gears 22 mesh with each other and are rotatably mounted between the two bracket plates 11-1. One of the three-stage gears 22 at the end of the three-stage gear set 8 is fixed with the bottom bracket 9 by a snap-fit. The three-stage gear 22 at the other end is tightly fitted and fixed with the connecting shaft 13. The connecting shaft 14-1 on the upper linkage gear 14 passes through one of the three-stage gears 22 and is tightly fitted and fixedly connected with the lower linkage gear 15. The upper linkage gear 14 is also connected to the second-stage gear set 7 for transmission.

[0026] Furthermore, the secondary gear set 7 includes a secondary large gear 23 and a secondary small gear 24. The secondary large gear 23 and the secondary small gear 24 are mounted via a coupling 13. The coupling 13 is fixedly connected to the transmission upper mounting box 12. The coupling 13 passes through the secondary gear set 7, the two mounting plates 11-1 of the transmission lower mounting frame 11, and is tightly fitted with a third gear 22 at the end of the third gear set 8. The moon model 4 is connected to the secondary large gear 23 via a connecting rod. The secondary gear set 7 is connected to the primary gear set 6 via the secondary large gear 23. The earth model 3 on the transmission upper mounting box 12 rotates through the coupling 13 and the cooperation of the third gear set 8. Through the above motion, the various functions of the three-sphere model are demonstrated.

[0027] Furthermore, the first-stage gear set 6 includes gear 1 25, gear 2 26, and gear 3 27. Gear 1 25 is installed in the transmission upper mounting box 12. Gear 2 26 is rotatably connected to the bottom of the transmission upper mounting box 12. Gear 3 27 is fixedly snapped to gear 2 26. The second-stage large gear 23 supports gear 2 26. Gear 1 25 is rotatably connected to gear 2 26 through gear component 28 and simultaneously drives the Earth model 3 to rotate.

[0028] Furthermore, the transmission mounting box 12 includes a box body 29 and a bottom cover 30. The box body 29 is fixedly connected to the bottom cover 30, and the connecting shaft 13 is fixedly connected to the bottom cover 30. The box body 29 is provided with a fixing column 31 for mounting the earth model 3. The earth model 3 is rotatably connected to the shaft 25-1 on the gear 25 through the model shaft 32 and the rotating spring 33. The shaft 25-1 is also fixedly connected to the gear component 28.

[0029] Furthermore, the Earth model 3 is connected to the fixed column 31 via a model support 34. The model support 34 includes a support base 35 and a model hinge frame 36. The support base 35 is installed and connected to the fixed column 31. The model hinge frame 36 is snapped to the support base 35 via a clip 37. The Earth model 3 is rotatably connected to the model hinge frame 36 via a model shaft 32.

[0030] Furthermore, the end of the model shaft 32 is provided with a manual knob 38, which can be manually operated and facilitates diverse operation.

[0031] Furthermore, the second gear 26 is provided with multiple slots 26-1, and the third gear 27 is provided with a locking boss 27-1 that corresponds to the slot 26-1.

[0032] Furthermore, the drive device 5 includes a battery 40 that supplies power to it, and the drive device 5 is preferably a motor.

[0033] In use, this structure can be assembled into a three-sphere instrument through the above-mentioned installation connection relationship. The drive device 5 drives the Earth model 3 to rotate through gear 25 in the first-stage gear set 6. At the same time, it drives the second-stage gear set 7 to rotate through gear 27 and the second-stage large gear 23. The second-stage large gear 23 drives the Moon model 4 to rotate. Meanwhile, the second-stage small gear 24 meshes with the upper linkage gear 14 to drive the third-stage gear set 8 to rotate. At the same time, the upper linkage gear 14 drives the lower linkage gear 15 to rotate. The lower linkage gear 15 meshes with the chassis gear 10, so that the Earth model 3 and the Moon model 4 rotate around the Sun model 2 while rotating. Since one of the third-stage gears 22 at the end of the third-stage gear set 8 is fixed with the base bracket 9 by a snap-fit, and the other end of the third-stage gear 22 is tightly fitted and fixed with the connecting shaft 13, the connecting shaft 13 connected to one of the third-stage gears 22 will rotate simultaneously during the rotation of the transmission lower mounting bracket 11, thereby driving the Earth model 3 on the transmission upper mounting box 12 to rotate.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the patent protection scope of this utility model should be determined by the appended claims.

Claims

1. A three-ball globe which is easy to assemble and low in cost, comprising a base (1), a sun model (2), an earth model (3), and a moon model (4); characterized in that: It also includes a drive unit (5) and a multi-stage drive gear set, which is connected to the drive unit (5) for transmission. The multi-stage drive gear set includes a first-stage gear set (6), a second-stage gear set (7), and a third-stage gear set (8). The base (1) is provided with a base bracket (9) for mounting the solar model (2) and a chassis gear (10). A transmission lower mounting bracket (11) and a transmission upper mounting box (12) are installed and connected through the base bracket (9). The transmission lower mounting bracket (11) and the transmission upper mounting box (12) are connected through a coupling (13). The first-stage gear set (6) is installed on the transmission upper mounting box (12). The first-stage gear set (6) is connected to the drive unit (5) and the second-stage gear set (7) for transmission. The first-stage gear set (6) drives the Earth. Model (3) rotates, and the secondary gear set (7) drives the lunar model (4) to rotate; the transmission lower mounting frame (11) is rotatably connected to the base support (9), the tertiary gear set (8) is installed between the transmission lower mounting frame (11), the transmission lower mounting frame (11) is respectively equipped with an upper linkage gear (14) and a lower linkage gear (15), the upper linkage gear (14) is connected to the secondary gear set (7), the upper linkage gear (14) passes through the tertiary gear set (8) and is fixedly connected to the lower linkage gear (15), the lower linkage gear (15) is meshed with the chassis gear (10) and is connected to the transmission. The multi-stage drive gear set drives the Earth model (3) and the lunar model (4) around the Sun model (2) through the relative drive between the lower linkage gear (15) and the chassis gear (10).

2. The low cost, easy to assemble three sphere instrument of claim 1, wherein: The base (1) includes a base body (16), an upper plate (17), a lower plate (18), and multiple base legs (19). The upper plate (17) and the lower plate (18) are respectively snapped to the base body (16), and the multiple base legs (19) are respectively snapped to the lower plate (18). A reinforcing plate (39) is snapped between the multiple base legs (19). The bottom bracket (9) is formed by two brackets (9-1) snapping together to form a cross shape. The bottom bracket (9) is snapped to the upper plate (17) and the lower plate (18). The solar model (2) is secured to the bottom bracket (9) through a connecting rod (20). One end of the transmission lower mounting bracket (11) is rotatably connected to the bottom bracket (9) through a pressure cap (21). The bottom plate gear (10) is set in the upper plate (17) and meshes with the lower linkage gear (15) for transmission. The lower linkage gear (15) is connected to the upper linkage gear (14) for transmission.

3. The low cost, easy to assemble three sphere instrument of claim 2, wherein: The three-stage gear set (8) between the transmission lower mounting frame (11) is composed of multiple three-stage gears (22). The transmission lower mounting frame (11) is composed of two upper and lower mounting plates (11-1). The connecting shaft (13) passes through one end of the transmission lower mounting frame (11). Multiple three-stage gears (22) mesh with each other and are installed between the two mounting plates (11-1). One of the three-stage gears (22) at the end of the three-stage gear set (8) is fixed with the bottom bracket (9) by a snap. The three-stage gear (22) at the other end is tightly fitted and fixed with the connecting shaft (13). The connecting shaft (14-1) on the upper linkage gear (14) passes through one of the three-stage gears (22) and is tightly fitted and fixed to the lower linkage gear (15). The upper linkage gear (14) is also connected to the second-stage gear set (7) for transmission.

4. The low cost, easy to assemble three ball instrument of claim 3, wherein: The secondary gear set (7) includes a secondary large gear (23) and a secondary small gear (24). The secondary large gear (23) and the secondary small gear (24) are installed through a coupling (13). The coupling (13) is fixedly connected to the transmission upper mounting box (12). The coupling (13) passes through the two plates (11-1) of the secondary gear set (7) and the transmission lower mounting frame (11), and is tightly fitted with a third gear (22) at the end of the third gear set (8). The moon model (4) is connected to the secondary large gear (23) through a connecting rod. The secondary gear set (7) is connected to the primary gear set (6) through the secondary large gear (23). The earth model (3) on the transmission upper mounting box (12) rotates through the coupling (13) and the third gear set (8).

5. A low cost, easy to assemble three ball instrument according to claim 4, characterized in that: The first-stage gear set (6) includes gear one (25), gear two (26), and gear three (27). Gear one (25) is installed in the transmission upper mounting box (12). Gear two (26) is rotatably connected to the bottom of the transmission upper mounting box (12). Gear three (27) is fixedly snapped to gear two (26). The second-stage large gear (23) supports gear two (26). Gear one (25) is rotatably connected to gear two (26) through gear component (28) and simultaneously drives the earth model (3) to rotate.

6. A low cost, easy to assemble three ball instrument according to claim 4 or 5, characterized in that: The transmission mounting box (12) includes a box body (29) and a bottom cover (30). The box body (29) and the bottom cover (30) are fixedly connected. The connecting shaft (13) is fixedly connected to the bottom cover (30). The box body (29) is provided with a fixed column (31) for mounting the earth model (3). The earth model (3) is rotatably connected to the shaft (25-1) on the gear (25) through the model shaft (32) and the rotating spring (33). The shaft (25-1) is also fixedly connected to the gear component (28).

7. A low cost, easy to assemble three ball instrument according to claim 6, characterized in that: The Earth model (3) is connected to the fixed column (31) via a model support (34). The model support (34) includes a support base (35) and a model hinge frame (36). The support base (35) is installed and connected to the fixed column (31). The model hinge frame (36) is snapped to the support base (35) via a clip (37). The Earth model (3) is rotatably connected to the model hinge frame (36) via a model shaft (32).

8. A low cost, easy to assemble three ball instrument according to claim 7, characterized in that: The model shaft (32) is equipped with a manual knob (38) at its end.

9. The low cost, easy to assemble three ball instrument of claim 5, wherein: The gear two (26) is provided with multiple slots (26-1), and the gear three (27) is provided with a locking boss (27-1) that corresponds to the slots (26-1).

10. The low cost, easy to assemble three sphere instrument of claim 1, wherein: The drive unit (5) includes a battery (40) that powers it, and the drive unit (5) is selected as a motor.

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