Astronomical globe and mounting structure of support in globe body of astronomical globe

Abstract

The astronomical globe comprises a sphere arranged on a base, an outer driving unit is arranged in the base, the outer driving unit is in transmission connection with a transmission assembly, and the transmission assembly is provided with a channel communicated with the internal space of the sphere; the astronomical globe comprises a globe body, a channel is formed in the globe body, a support used for installing a light-emitting structure is arranged in the globe body, the support is provided with a fixing shaft, the astronomical globe further comprises an installation base, the installation base comprises a fixing part and a protruding part, the protruding part is located in the channel, and the fixing shaft is installed on the protruding part. According to the astronomical globe, the installation seat can be installed on the base firstly, the protruding part of the installation seat is located in the channel of the transmission assembly, equivalently, a fixed installation point extends out of the channel, the support only needs to be installed on the protruding part, the situation that in the prior art, the support needs to penetrate through the transmission assembly and then is installed on the base is not needed, and installation is more convenient. The utility model also designs a mounting structure of the support in the sphere of the astronomical globe.

Description

Technical Field

[0001] This utility model relates to a globe, specifically an astronomical globe that can simulate day and night changes and the changing of the four seasons. Background Technology

[0002] Globes are typically used to display geographical patterns. Traditional globes have relatively limited functions. In recent years, with the advancement of technology, people have invented astronomical globes that can simulate day and night changes and the changing seasons. For example, the patent 2022110125065 "An Electric Globe" applied for by Guangzhou Saturn Culture Development Co., Ltd., as shown on the State Intellectual Property Office website, and the astronomical globe patent 2022715811601 previously applied for by the applicant, both belong to this type of astronomical globe.

[0003] The principle behind these astronomical globes is to set up a light-emitting structure inside a traditional sphere. When the light-emitting structure is activated, it forms a sphere that is half dark and half bright, thus simulating the change of day and night. The light-emitting structure can rotate, and the light inside the sphere rotates accordingly, which can simulate the changing of the four seasons.

[0004] As shown in patents 2022110125065 and 2022715811601, the light-emitting structure is mounted on a bracket, which is installed in the base via a long fixed shaft (such as the support component 1 in patent 2022110125065 and the straight shaft at the bottom of the zigzag shaft in patent 2022715811601). In actual installation, the fixed shaft needs to pass through the transmission assembly before being installed in the base, and most of the bracket is located inside the sphere, which brings great inconvenience to the installation.

[0005] Due to the aforementioned technical issues, improvements are needed. Utility Model Content

[0006] The purpose of this invention is to provide an astronomical globe that is easier to install.

[0007] The present invention provides an astronomical globe comprising a sphere mounted on a base, an external drive unit connected to a transmission assembly, the transmission assembly being connected to the sphere and having a channel communicating with the interior space of the sphere; a bracket for mounting a light-emitting structure is provided inside the sphere, the bracket having a fixing shaft for fixing the structure in place; the astronomical globe further comprises a mounting base, the mounting base comprising a fixed part fixedly mounted inside the base and a protrusion connected to the fixed part, the protrusion being located within the channel, and the fixing shaft being mounted on the protrusion.

[0008] Preferably, the protrusion and the fixed shaft are tubular and nested together, with one having a limiting block and the other having a matching limiting groove.

[0009] Preferably, the fixing part is located below the protrusion, and the fixing part includes a plurality of legs with mounting holes; the fixing part is provided with a wire outlet hole communicating with the internal space of the protrusion; the limiting block is located on the side of the protrusion; or the fixing part is a plurality of legs with mounting holes located on the side of the protrusion, and the limiting block is located on the side of the protrusion.

[0010] Preferably, the bracket includes a fixed shaft, a mounting shaft, and a connecting piece between the two; both the fixed shaft and the mounting shaft are tubular, and the included angle between them is equal to the angle between the Earth's rotation axis and the Earth's orbital plane; the base contains a circuit board, and the light-emitting structure has a power supply wire that passes through the fixed shaft, the mounting shaft, and the mounting base and is electrically connected to the circuit board.

[0011] Preferably, the base has a curved arm, and the north pole of the sphere is rotatably connected to the curved arm; the transmission assembly includes an annular sphere connector and a driving component, the sphere connector is installed at the south pole of the sphere, the driving component is sleeved outside the protrusion and is connected to the external driving unit, the driving component drives the sphere connector to rotate, and the two can be disengaged when the sphere is subjected to external force during rotation.

[0012] Preferably, the bottom surface of the spherical connector has a circumferentially distributed groove, and the upper surface of the driving component has several circumferentially distributed protrusions, the protrusions being located within the groove.

[0013] Preferably, the driving component is a second gear, and a first gear is provided on the output shaft of the external driving unit, with the first gear and the second gear meshing.

[0014] Preferably, the light-emitting structure includes an optical disc and a light source on the optical disc; an internal driver and a slip ring pass through the mounting shaft, the input end of the slip ring is connected to a power supply wire for the light source, and the output end is electrically connected to the light source; the internal driver includes a housing, a rotating component, and an internal drive unit; the rotating component is rotatably mounted on the housing, and the internal drive unit is located inside the housing and is drively connected to the rotating component; the housing is fixed on the mounting shaft; the rotating component is connected to the optical disc; the mounting shaft is located at the center of the optical disc, and the optical disc has a hole for accommodating the mounting shaft, the slip ring, and the internal driver. A preferred embodiment may be that the rotating component is a turntable, the housing is cylindrical, and the turntable, the upper end face of the housing, and the bottom face of the housing are all provided with through holes; the inner drive unit is located at an eccentric position inside the housing; the upper end face of the housing is provided with circumferentially distributed balls, the turntable is disposed on the balls, and the lower inner edge of the turntable is provided with several elastic hooks that can be engaged with the inner edge of the upper end face of the housing; the bottom surface of the turntable is provided with a gear ring, and the output shaft of the inner drive unit is provided with a third gear, which passes through the upper end face of the housing and meshes with the gear ring.

[0015] This utility model also designs an installation structure for a support frame inside an astronomical globe. The support frame has a fixing shaft for fixing it in place. The installation structure includes a transmission component connected to the globe, which has a channel communicating with the internal space of the globe. The feature is that it also includes a mounting base, which includes a fixing part fixedly installed inside the globe base and a protrusion connected to the fixing part. The protrusion is located inside the channel, and the fixing shaft is installed on the protrusion.

[0016] The advantages of this utility model compared with the prior art are: it adopts a mounting base, which can...

[0017] The bracket is first installed on the base, and the protrusion of the mounting base is located in the channel of the transmission component, which is equivalent to extending a fixed mounting point in the channel. The bracket only needs to be installed on the protrusion, without having to pass through the transmission component and then be installed on the base as in the existing technology, making the installation more convenient. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the astronomical globe described in Example 1;

[0020] Figure 2 This is a structural schematic diagram of the bracket and mounting base in Embodiment 1;

[0021] Figure 3 This is a schematic diagram of another form of the astronomical globe described in Example 1;

[0022] Figure 4 This is a schematic diagram of the bracket and mounting base in Example 2;

[0023] Figure 5 This is a schematic diagram of another mounting base in Embodiment 2;

[0024] Figure 6 This is a schematic diagram of another mounting base in Embodiment 2;

[0025] Figure 7 This is a schematic diagram of the astronomical globe described in Example 3;

[0026] Figure 8 yes Figure 7 Enlarged view of point A in the middle;

[0027] Figure 9 This is an assembly drawing of the transmission assembly and mounting base in Example 3;

[0028] Figure 10 This is a top view of the drive component in Embodiment 3;

[0029] Figure 11 This is a bottom view of the spherical connector in Embodiment 3;

[0030] Figure 12 This is a schematic diagram of the connection between another driving component and a ball connector in Embodiment 3;

[0031] Figure 13 This is a schematic diagram of the astronomical globe described in Example 4;

[0032] Figure 14 This is a schematic diagram of the internal driver described in Embodiment 4;

[0033] The following components are labeled in the diagram: 1. Base; 2. Sphere; 3. External drive unit; 4. Transmission assembly; 5. Channel; 6. Light-emitting structure; 7. Bracket; 8. Mounting base; 9. Wire; 10. Circuit board; 11. Bent arm.

[0034] Drive component 41, first gear 42, ball connector 43, protrusion 44, groove 45, tube body 46, tube sleeve 47, gear 48, bearing 49, seat plate 410, screw 411;

[0035] 61. Optical disc; 62. Light source; 63. Internal driver; 64. Slip ring; 65. Hole.

[0036] Housing 631, rotating component 632, internal drive unit 633, through hole 634, ball 635, elastic hook 636, gear ring 637, third gear 638, ring seat 639;

[0037] Fixed shaft 71, mounting shaft 72, connecting piece 73

[0038] Fixed part 81, protrusion 82, cable outlet hole 83, limiting block 84, limiting groove 85, support leg 86; Detailed Implementation

[0039] The present invention will be further described below with reference to the embodiments and accompanying drawings. Example

[0040] like Figure 1 , 2 As shown, the astronomical globe described in this embodiment includes a sphere 2 mounted on a base 1. An external drive unit 3 is provided inside the base 1. The external drive unit 3 is connected to a transmission assembly 4. The transmission assembly 4 is connected to the sphere 2 and has a channel 5 communicating with the internal space of the sphere 2. A bracket 7 for mounting a light-emitting structure 6 is provided inside the sphere 2. The bracket 7 has a fixing shaft 71 for fixing it in place. The astronomical globe also includes a mounting base 8. The mounting base 8 includes a fixing part 81 fixedly mounted inside the base 1 and a protrusion 82 connected to the fixing part 81. The protrusion 82 is located inside the channel 5, and the fixing shaft 71 is mounted on the protrusion 82.

[0041] The transmission assembly 4 includes a tube 46 with a toothed ring, a sleeve 47 connected to a ball, and a gear 48 mounted on the output shaft of the external drive unit 3. The gear 48 meshes with the toothed ring. The tube is mounted inside a bearing 49 on the base 1. The sleeve 47 is fixedly connected to the tube 46. The internal spaces of the tube 46 and the sleeve 47 form the channel 5. The fixing part 81 is mounted on the base plate 410 inside the base by screws 411. The protrusion 82 is tubular, and the fixing shaft 71 is also tubular. The fixing shaft 71 and the protrusion 82 are fitted and locked together, so that the fixing shaft 71 is firmly mounted on the protrusion 82. The external drive unit 3 can be a motor, a combination of a motor and a reducer, or a combination of a motor and a gearbox. Those skilled in the art can choose according to actual needs. The external drive unit 3 can drive the gear 48 to rotate, thereby driving the tube body 46 to rotate. Since the tube sleeve 47 is fixedly connected to the tube body 46 and the tube sleeve 47 is connected to the ball, the ball can be driven to rotate. However, the mounting base 8 is fixedly installed on the base and does not rotate, thus providing a fixed mounting point for the bracket 7.

[0042] The transmission component 4 can also employ other existing structures, such as the structure shown in patent number 2022110125065. Other structures of the astronomical globe described in this embodiment can also be achieved using existing technology.

[0043] The astronomical globe described in this embodiment uses a mounting base 8. The mounting base 8 can be installed on the base first, and the protrusion 82 of the mounting base 8 is located in the channel of the transmission component, which is equivalent to extending a fixed mounting point in the channel. The bracket only needs to be installed on the protrusion 82, without having to pass through the transmission component and then be installed on the base as in the prior art, making the installation more convenient.

[0044] In this embodiment, the fixed shaft 71 is inclined, but it can also be modified as follows: Figure 3 The structure shown has a fixed axis 71 that is vertical. Example

[0045] like Figure 4 As shown, in this embodiment of the astronomical globe, the protrusion 82 and the fixed shaft 71 are tubular and interlocked. Unlike embodiment 1, the protrusion 82 has a limiting block 84, and the fixed shaft 71 has a limiting groove 85. After interlocking, the limiting block 84 is located within the limiting groove 85. Compared to the clamping method in embodiment 1, the fixed shaft 71 is better fixed to the protrusion 82. The thickness of the limiting block 84 can be made to be the same as the wall thickness of the fixed shaft 71.

[0046] The structure of the mounting base can also be as follows: Figure 5 As shown, the fixing part 81 is located below the protrusion 82. The fixing part 81 includes four legs 86 with mounting holes arranged in a cross shape. The fixing part 81 is mounted on the base by means of the legs 86. The fixing part 81 is provided with a wire outlet hole 83 that communicates with the internal space of the protrusion 82. The limiting block 84 is located on the side of the protrusion 82.

[0047] The structure of the mounting base can also be as follows: Figure 6 As shown, the fixing part 81 consists of two left and right support legs 86 with mounting holes located on the side of the protrusion 82, and the limiting block 84 is located on the side of the protrusion 82.

[0048] Alternatively, the limiting block 84 can be located on the fixed shaft 71, while the limiting groove 85 can be located on the protrusion 82. Example

[0049] like Figure 7 As shown, the astronomical globe described in this embodiment differs from that in Embodiment 1 in that:

[0050] The bracket 7 includes a fixed shaft 71, a mounting shaft 72, and a connecting piece 73 connecting the two; both the fixed shaft 71 and the mounting shaft 72 are tubular and the included angle between them is equal to the included angle between the Earth's rotation axis and the Earth's orbital plane; the base 1 is provided with a circuit board 10, and the light-emitting structure 6 has a power supply wire 9, which passes through the fixed shaft 71, the mounting shaft 72, and the mounting base 8 and is electrically connected to the circuit board 10;

[0051] The base 1 has a curved arm 11, and the sphere 2 is rotatably connected to the curved arm 11 at its north pole. Rotatable connections at the north pole of the globe can take many forms in the prior art; here, a round rod is connected to the bottom surface of the curved arm 11, the rod passes through a hole in the sphere 2, and the two can rotate relative to each other. The transmission assembly includes a ring-shaped sphere connector 43 and a driving component 41 (both ring-shaped). The sphere connector 43 is installed at the south pole of the sphere, and the driving component 41 is sleeved on the protrusion 82 and is connected to the external driving unit 3. The driving component 41 drives the sphere connector 43 to rotate, and the two can disengage when the sphere is subjected to external force. The driving component 41 is a second gear, and a first gear 42 is provided on the output shaft of the external driving unit 3. The first gear 42 meshes with the second gear.

[0052] The external drive unit 3 drives the drive component 41 to rotate, and the drive component 41 drives the ball connector 43 and the ball 2 to rotate together. When the ball is subjected to external force during rotation, the drive component 41 and the ball connector 43 can disengage. In this way, during rotation, the user's hand can stop the ball, reverse the ball, or accelerate the rotation of the ball. The above functions are achieved by the following structure: the bottom surface of the ball connector 43 is provided with a circumferentially distributed groove 45, and the upper end surface of the drive component 41 is provided with several circumferentially distributed protrusions 44. Normally, since the protrusions 44 are located in the groove 45, the drive component 41 can drive the ball connector 43 to rotate as a whole. When the ball is subjected to force, the protrusions 44 will disengage from the groove 45 to cooperate with the movement of the ball 2. In order to better realize this function, the drive component 41 and the ball connector 43 can be made of relatively soft plastic material, the height of the protrusions should not be too high, generally 2-3 mm is appropriate, and the bent arm 11 can also have a certain degree of elasticity.

[0053] The above functions can also be implemented using the following structures: such as Figure 12 The protrusion 44 is located on the outer side wall of the drive member 41, and the circumferentially distributed groove 45 is located on the inner side wall of the ball connector 43. The drive member 41 is located inside the ball connector 43.

[0054] The above functions can also be achieved by friction. For example, rough surfaces are provided on the contact surfaces of the drive component 41 and the ball connector 43. Normally, the drive component 41 drives the ball connector 43 to rotate by friction. When subjected to external force, the friction can be overcome to achieve separation.

[0055] In this embodiment, the light-emitting structure can be the same as the astronomical globe patent 2022715811601. Example

[0056] like Figure 13 , 14 As shown, the astronomical globe described in this embodiment differs from that in Embodiment 1 in that: the light-emitting structure 6 includes an optical disc 61 and a light source 62 on the optical disc 61; an internal driver 63 and a slip ring 64 pass through the mounting shaft 72; the input end of the slip ring 64 is connected to the wire 9 that supplies power to the light source 62, and the output end is electrically connected to the light source 62. The slip ring is a conventional electrical component that can provide power in a state of relative rotation. Its function is to ensure that the light source 3 can still receive power when it is rotating, thus preventing wire tangling.

[0057] The internal actuator 63 includes a housing 631, a rotating component 632, and an internal drive unit 633. The rotating component 632 is rotatably mounted on the housing 631, and the internal drive unit 633 is located inside the housing 631 and is connected to the rotating component 632 in a transmission manner. The housing 631 is fixed to the mounting shaft 72. The fixing method is existing technology, such as bonding, welding, or fixing with screws to an annular seat 639 on the mounting shaft 72, or other existing methods may be used. The rotating component 632 is connected to the optical disc 61. The mounting shaft 72 is located at the center of the optical disc 61, and the optical disc 61 has a hole 65 to accommodate the mounting shaft 72, the slip ring 64, and the internal actuator 63. The function of the hole 65 is to ensure that the optical disc does not touch the mounting shaft, the slip ring, and the internal actuator when rotating. In order to improve the light blocking effect, the gap between the hole and the mounting shaft, the slip ring, and the internal actuator should be as small as possible, such as 1-2 millimeters.

[0058] Specifically, the rotating component 632 is a turntable, and the housing 631 is cylindrical. The turntable, the upper surface of the housing 631, and the bottom surface of the housing 631 are all provided with through holes 634. A mounting shaft can pass through these three through holes. The internal drive unit 633 is located at an eccentric position within the housing 631. The upper surface of the housing 631 is provided with circumferentially distributed ball bearings 635, and the turntable is mounted on these ball bearings. Below the inner edge of the turntable are several elastic hooks 636 that can engage with the inner edge of the upper surface of the housing 631. The elastic hooks 636 allow the turntable to rotate above the housing without falling off. The bottom surface of the turntable is provided with a gear ring 637, and the output shaft of the internal drive unit 633 is provided with a third gear 638. The third gear 638 passes through the upper surface of the housing 631 and meshes with the gear ring 637. The internal drive unit 633 can be a motor, a combination of a motor and a reducer, or a combination of a motor and a gearbox; those skilled in the art can choose according to actual needs.

[0059] This astronomical globe integrates the rotating components and the internal drive unit into a single unit. The mounting shaft passes through the internal drive axially, allowing the internal drive to be flexibly fitted onto the inner shaft and then secured during installation. This method is more convenient than the individual component installation of existing technologies. Since the entire internal drive is mounted on the inner shaft, it operates more stably.

[0060] This astronomical globe, when in use, uses an internal drive unit to rotate a rotating component, which in turn drives a light-blocking disc to rotate around its mounting axis. Due to the angle between the discs, the rotation of the disc simulates the changing seasons. An external drive unit rotates the globe, simulating the daytime changes caused by the Earth's rotation. In this astronomical globe, one half of the globe is illuminated, displaying a bright pattern—the daytime hemisphere—while the other half, blocked by the internal light-blocking disc, remains dark—the nighttime hemisphere. This invention overcomes the limitations of ordinary globes in showcasing various astronomical scenes, transforming the globe into a popular science instrument integrating astronomy and geography. With its simple structure and easy operation, it compensates for the shortcomings of ordinary globes in representing cosmic lighting scenes. It is a novel and more scientifically significant educational and popular science globe, particularly suitable for use beyond just teaching. Example

[0061] This utility model also designs an installation structure for an inner support 7 of an astronomical globe sphere 2. The support 7 has a fixing shaft 7 for fixing it in place. The installation structure includes a transmission component 4 connected to the sphere 2. The transmission component 4 has a channel 5 communicating with the internal space of the sphere 2. The feature is that it also includes a mounting base 8, which includes a fixing part 8 fixedly installed in the globe base 1 and a protrusion 82 connected to the fixing part 8. The protrusion 82 is located in the channel 5, and the fixing shaft 7 is installed on the protrusion 82.

[0062] The transmission component 4, mounting base 8, etc., can adopt the structure described in the above embodiments.

Claims

1. An astronomical globe, comprising a sphere (2) mounted on a base (1), wherein an external drive unit (3) is provided within the base (1), the external drive unit (3) is connected to a transmission assembly (4), the transmission assembly (4) is connected to the sphere (2), and the transmission assembly (4) has a channel (5) communicating with the internal space of the sphere (2); wherein a bracket (7) for mounting a light-emitting structure (6) is provided within the sphere (2), the bracket (7) having a fixing shaft (71) for fixing the structure, characterized in that: The astronomical globe also includes a mounting base (8), which includes a fixed part (81) fixedly mounted in the base (1) and a protrusion (82) connected to the fixed part (81). The protrusion (82) is located in the channel (5), and the fixed shaft (71) is mounted on the protrusion (82).

2. The astronomical globe according to claim 1, characterized in that... The protrusion (82) and the fixed shaft (71) are tubular and are nested together. One of them is provided with a limiting block (84) and the other is provided with a matching limiting groove (85).

3. The astronomical globe according to claim 2, characterized in that: The fixing part (81) is located below the protrusion (82), and the fixing part (81) includes a plurality of legs (86) with mounting holes; the fixing part (81) is provided with a wire outlet hole (83) communicating with the internal space of the protrusion (82); the limiting block (84) is located on the side of the protrusion (82); or the fixing part (81) is a plurality of legs (86) with mounting holes located on the side of the protrusion (82), and the limiting block (84) is located on the side of the protrusion (82).

4. The astronomical globe according to claim 2, characterized in that... The bracket (7) includes a fixed shaft (71), a mounting shaft (72), and a connecting piece (73) connecting the two; the fixed shaft (71) and the mounting shaft (72) are both tubular, and the included angle between them is equal to the included angle between the Earth's rotation axis and the Earth's orbital plane. The base (1) is provided with a circuit board (10), and the light-emitting structure (6) has a power supply wire, which passes through the fixed shaft (71), the mounting shaft (72), and the mounting base (8) and is electrically connected to the circuit board (10).

5. The astronomical globe according to any one of claims 1 to 4, characterized in that... The base (1) has a curved arm (11), and the sphere (2) is rotatably connected to the curved arm (11) at the north pole point; the transmission assembly includes a ring-shaped sphere connector (43) and a drive member (41). The sphere connector (43) is installed at the south pole point of the sphere, and the drive member (41) is sleeved on the protrusion (82) and is connected to the external drive unit (3) in a transmission manner. The drive member (41) drives the sphere connector (43) to rotate, and the two can be disengaged when the sphere is subjected to an external force during rotation.

6. The astronomical globe according to claim 5, characterized in that: The bottom surface of the ball connector (43) is provided with a groove (45) distributed in a circle, and the upper surface of the drive member (41) is provided with a plurality of protrusions (44) distributed in a circle, the protrusions (44) being located in the groove (45).

7. The astronomical globe according to claim 5, characterized in that... The driving component (41) is a second gear, and the output shaft of the external driving unit (3) is provided with a first gear (42), which meshes with the second gear.

8. The astronomical globe according to claim 4, characterized in that... The light-emitting structure (6) includes an optical disc (61) and a light source (62) on the optical disc (61); an internal driver (63) and a slip ring (64) pass through the mounting shaft (72). The input end of the slip ring (64) is connected to a power supply wire (9) for the light source (62), and the output end is electrically connected to the light source (62). The internal driver (63) includes a housing (631), a rotating component (632), and an internal drive unit (633). The rotating component (632) is rotatably mounted on the housing (631). On the housing (631), the inner drive unit (633) is located inside the housing (631) and is connected to the rotating component (632) in a transmission manner; the housing (631) is fixed on the mounting shaft (72); the rotating component (632) is connected to the optical disc (61); the mounting shaft (72) is located at the center of the optical disc (61), and the optical disc (61) has a hole (65) for accommodating the mounting shaft (72), the slip ring (64) and the inner drive unit (63).

9. The astronomical globe according to claim 8, characterized in that... The rotating component (632) is a turntable, and the housing (631) is cylindrical. The turntable, the upper end face of the housing (631), and the bottom face of the housing (631) are all provided with through holes (634). The inner drive unit (633) is located at an eccentric position inside the housing (631). The upper end face of the housing (631) is provided with circumferentially distributed balls (635), and the turntable is disposed on the balls (635). The lower inner edge of the turntable is provided with several elastic hooks (636) that can be fastened into the inner edge of the upper end face of the housing (631). The bottom surface of the turntable is provided with a gear ring (637), and the output shaft of the inner drive unit (633) is provided with a third gear (638). The third gear (638) passes through the upper end face of the housing (631) and meshes with the gear ring (637).

10. An installation structure for an inner support (7) of an astronomical globe sphere (2), the support (7) having a fixed shaft (71) for its fixed installation, the installation structure including a transmission assembly (4) connected to the sphere (2), the transmission assembly (4) having a channel (5) communicating with the internal space of the sphere (2), characterized in that: It also includes a mounting base (8), which includes a fixing part (81) fixedly installed in the globe base (1) and a protrusion (82) connected to the fixing part (81), the protrusion (82) being located in the channel (5), and the fixing shaft (71) being mounted on the protrusion (82).

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