Magnetic suspension globe

Abstract

A magnetic suspension globe comprises a base and a sphere which can be arranged on the base in a suspension mode, the base comprises a base and an upper cover which can be arranged on the base in a lifting mode, the top of the upper cover is provided with a positioning hole or a positioning groove which is used for containing the sphere, and when the upper cover is lifted, the sphere is located in the positioning hole or the positioning groove. When the ball placed in the positioning hole or the positioning groove ascends to a balance position and the upper cover descends, the ball is separated from the upper cover and suspends on the base. The magnetic suspension globe is more convenient to install and safer to use.

Description

Technical Field

[0001] This utility model relates to the field of globe technology, specifically to a magnetically levitated globe. Background Technology

[0002] Unlike ordinary globes, magnetically levitated globes do not require a pivot point to levitate in the air, resulting in superior visual and demonstration effects. Chinese invention patent application CN108154790A discloses a magnetically levitated globe, the structure of which is as follows... Figure 1 As shown, the device includes a sphere 1a and a base 2a, with the sphere 1a suspended above the base 2a. A gyroscope-shaped permanent magnet 3a is located inside the sphere 1a, while the base contains a permanent magnet ring 4a, an electromagnetic coil 5a, a Hall sensor array 6a, a printed circuit board 7a, and a lithium battery. This magnetically levitated globe utilizes the principle of like poles repulsion between the permanent magnet ring 4a of the base 2a and the permanent magnet 3a of the sphere 1a to balance the gravity and magnetic repulsion of the sphere 1a, achieving vertical balance. Simultaneously, the printed circuit board 7a controls the excitation current of the electromagnetic coil 5a based on signals detected by the Hall sensor array 6a, ensuring that the magnetic force generated by the energized electromagnetic coil 5a maintains the horizontal balance of the sphere 1a.

[0003] However, existing magnetic levitation globes still have the following technical problems: there are no auxiliary devices between the sphere 1a and the base 2a, and there is no clear installation position indication, which means that the balance position of the sphere 1a is entirely adjusted manually, making installation difficult; once the installation position is offset, the sphere 1a and the base 2a are prone to suddenly sticking together, which can pinch fingers and cause injury, so the safety is also low. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a magnetic levitation globe that is easier to install and safer to use.

[0005] The technical solution of this utility model is: a magnetic levitation globe, including a base and a sphere that can be suspended on the base. The base includes a pedestal and a top cover that can be raised and lowered on the pedestal. The top of the top cover is provided with a positioning hole or positioning groove for placing the sphere. When the top cover is raised, the sphere placed in the positioning hole or positioning groove rises to the equilibrium position. When the top cover is lowered, the sphere separates from the top cover and levitates on the base.

[0006] With the above structure, this utility model has the following advantages:

[0007] This invention relates to a magnetic levitation globe, which incorporates a liftable top cover as an auxiliary mechanism between the globe and its base. The top cover's positioning holes or slots are used to determine the globe's front-to-back and left-to-right positions relative to the base. The height of the top cover's rise determines the globe's vertical position relative to the base, thus establishing the globe's equilibrium position. Lowering the top cover then separates the globe from the cover, allowing it to levitate on the base. This liftable top cover eliminates the need for tedious manual adjustments, making installation easier and reducing the risk of the globe suddenly sticking to the base, thus enhancing safety.

[0008] Preferably, the base further includes a limiting slip ring rotatably sleeved outside the base, and the upper cover rotatably sleeved outside the limiting slip ring. A first guide structure is provided between the upper cover and the limiting slip ring, and a second guide structure is provided between the base and the limiting slip ring. When the upper cover is rotated forward, the first guide structure guides the upper cover to rise along the limiting slip ring, and the second guide structure guides the limiting slip ring to rise along the base. When the upper cover is rotated in the reverse direction, the first guide structure guides the upper cover to fall along the limiting slip ring, and the second guide structure guides the limiting slip ring to fall along the base. By adding a limiting slip ring between the upper cover and the base, the limiting slip ring is hidden between the upper cover and the base when the upper cover is lowered. When the upper cover is raised, not only does the upper cover rise relative to the limiting slip ring, but the limiting slip ring also rises relative to the base, thereby increasing the lifting stroke and ensuring the stroke requirement while achieving a lightweight structure.

[0009] Preferably, the first guide structure includes a first track groove disposed on one of the upper cover and the limiting slip ring, and a first sliding shaft disposed on the other. The first track groove includes a first lifting slide groove that gradually slopes downwards, and a first positioning slide groove horizontally disposed at the upper end and a second positioning slide groove horizontally disposed at the lower end of the first lifting slide groove. This first guide structure is simple, using the inclined first lifting slide groove to realize the lifting movement of the upper cover relative to the limiting slip ring, and using the first and second positioning slide grooves horizontally disposed at both ends of the first lifting slide groove to realize the positioning of the upper cover when it rises to the highest point of the limiting slip ring and when it descends to the lowest point of the limiting slip ring.

[0010] Preferably, the second guide structure includes a second track groove disposed on one of the base and the limiting slip ring, and a second sliding shaft disposed on the other. The second track groove includes a second lifting slide groove that gradually slopes downwards, and a third positioning slide groove horizontally disposed at the upper end and a fourth positioning slide groove horizontally disposed at the lower end of the second lifting slide groove. This second guide structure is simple, using the inclined second lifting slide groove to realize the lifting movement of the limiting slip ring relative to the base, and using the third and fourth positioning slide grooves horizontally disposed at both ends of the second lifting slide groove to realize the positioning of the limiting slip ring when it rises to the highest point of the base and falls to the lowest point of the base.

[0011] Preferably, both the first and second track grooves are disposed on the limiting slip ring, the first sliding shaft is disposed on the upper cover, and the second sliding shaft is disposed on the base. When the upper cover is rotated clockwise, the first sliding shaft slides upward relative to the first track groove, and the second sliding shaft slides downward relative to the second track groove. When the upper cover is rotated counterclockwise, the first sliding shaft slides downward relative to the first track groove, and the second sliding shaft slides upward relative to the second track groove. Distributing the first and second track grooves on the limiting slip ring results in a simpler overall appearance.

[0012] Preferably, the number of the first track groove and the second track groove are equal, and each is provided in at least two. The first track groove and the second track groove are alternately arranged on the limiting slip ring along the circumferential direction. This arrangement is reasonable and facilitates the separate installation of the first guide structure and the second guide structure.

[0013] Preferably, the system further includes a first slot on the inner sidewall of the upper cover and a first locking block disposed within the first slot. The first slot extends upward from the bottom of the upper cover, and the first locking block is installed into the first slot from bottom to top. The first sliding shaft is disposed inside the first locking block. Since the first sliding shaft and the first track groove experience wear during sliding, placing them on the detachably connected first locking block allows for replacement of only the first locking block after wear, without replacing the entire upper cover, resulting in lower operating costs. Furthermore, the structure of the first slot facilitates the installation of the first locking block.

[0014] Preferably, the system further includes a second slot on the outer wall of the base and a second locking block disposed within the second slot. The second slot extends downward from the top of the base, and the second locking block is installed into the second slot from top to bottom. The second sliding shaft is disposed on the outer side of the second locking block. Since the second sliding shaft and the second track groove experience wear during sliding, placing them on the detachably connected second locking block allows for replacement of only the second locking block after wear, without replacing the entire base, resulting in lower operating costs. Furthermore, the structure of the second slot facilitates the installation of the second locking block.

[0015] Preferably, multiple first protruding ridges are evenly distributed along the circumferential direction on the inner sidewall of the upper cover, and the extending direction of each first protruding ridge is consistent with the lifting direction of the upper cover. This arrangement can increase the friction between the upper cover and the limiting slip ring, making the movement of the upper cover more stable and ensuring reliable limiting when it moves to the highest or lowest position.

[0016] Preferably, multiple second protruding ridges are evenly distributed along the circumferential direction on the outer side wall of the base, and the extension direction of each second protruding ridge is consistent with the lifting direction of the limiting slip ring. This arrangement increases the friction between the base and the limiting slip ring, allowing the base and the limiting slip ring to remain temporarily stationary when the upper cover moves relative to the limiting slip ring. Only when the upper cover moves to the limit position of the limiting slip ring will the limiting slip ring move relative to the base. In other words, during the lifting and lowering process of the upper cover, the upper cover first moves relative to the limiting slip ring, and then the limiting slip ring moves relative to the base, resulting in a more stable lifting and lowering of the upper cover. In addition, increasing the friction between the base and the limiting slip ring also makes the movement of the limiting slip ring more stable and ensures reliable limiting when it reaches the highest or lowest position. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an existing magnetically levitated globe;

[0018] Figure 2 This is a schematic diagram of the structure of the magnetic levitation globe of this utility model;

[0019] Figure 3 This is an exploded schematic diagram of the magnetic levitation globe of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the upper cover of the magnetic levitation globe of this utility model;

[0021] Figure 5 This is a schematic diagram of the limiting slip ring of the magnetic levitation globe of this utility model;

[0022] Figure 6 This is a schematic diagram of the base of the magnetic levitation globe of this utility model;

[0023] In the existing technical diagram: 1a-sphere, 2a-base, 3a-permanent magnet, 4a-permanent magnet ring, 5a-electromagnetic coil, 6a-Hall sensor group, 7a-printed circuit board;

[0024] In the figures of this utility model: 1-base, 2-sphere, 3-base, 4-top cover, 5-positioning hole or positioning groove, 6-limiting slip ring, 7-first track groove, 8-first sliding shaft, 9-first lifting slide groove, 10-first positioning slide groove, 11-second positioning slide groove, 12-second track groove, 13-second sliding shaft, 14-second lifting slide groove, 15-third positioning slide groove, 16-fourth positioning slide groove, 17-first slot, 18-first locking block, 19-second slot, 20-second locking block, 21-first protruding ridge, 22-second protruding ridge. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example:

[0027] like Figure 2-6 As shown, a magnetically levitated globe includes a base 1 and a sphere 2 that can be levitated on the base 1. The magnetic levitation components in the base 1 and the sphere 2 can be implemented using existing technology. The base 1 includes a base 3 and a top cover 4 that can be raised and lowered on the base 3. The top of the top cover 4 is provided with a positioning hole or positioning groove 5 for placing the sphere 2. When the top cover 4 is raised, the sphere 2 placed in the positioning hole or positioning groove 5 rises to the equilibrium position. When the top cover 4 is lowered, the sphere 2 separates from the top cover 4 and levitates on the base 1. In this embodiment, the top of the top cover 4 is provided with a positioning hole 5, and the directions of up, down, left, right, front, and back are oriented as follows: Figure 1 Based on.

[0028] In this embodiment, the magnetic levitation globe has a liftable top cover 4 as an auxiliary mechanism between the sphere 2 and the base 1. The positioning holes or positioning grooves 5 of the top cover 4 are used to position the front-back and left-right positions of the sphere 2 relative to the base 1. The height of the top cover 4 is used to position the vertical position of the sphere 2 relative to the base 1, so that the balance position of the sphere 2 relative to the base 1 can be determined. Then, the top cover 4 is lowered, so that the sphere 2 separates from the top cover 4 and levitates on the base 1. The liftable top cover 4 as an auxiliary mechanism can replace the tedious manual adjustment process, making installation more convenient and reducing the possibility of the sphere 2 suddenly sticking to the base 1, making it safer to use.

[0029] The base 1 also includes a limiting slip ring 6 rotatably sleeved outside the base 3. The upper cover 4 is rotatably sleeved outside the limiting slip ring 6. A first guide structure is provided between the upper cover 4 and the limiting slip ring 6, and a second guide structure is provided between the base 3 and the limiting slip ring 6. When the upper cover 4 is rotated in the forward direction, the first guide structure guides the upper cover 4 to rise along the limiting slip ring 6, and the second guide structure guides the limiting slip ring 6 to rise along the base 3. When the upper cover 4 is rotated in the reverse direction, the first guide structure guides the upper cover 4 to fall along the limiting slip ring 6, and the second guide structure guides the limiting slip ring 6 to fall along the base 3. By adding a limiting slip ring 6 between the upper cover 4 and the base 3, when the upper cover 4 is lowered, the limiting slip ring 6 is hidden between the upper cover 4 and the base 3. When the upper cover 4 is raised, not only does the upper cover 4 rise relative to the limiting slip ring 6, but the limiting slip ring 6 also rises relative to the base 3, thereby increasing the lifting stroke and ensuring the stroke requirements are met while achieving a lightweight structure.

[0030] The first guide structure includes a first track groove 7 disposed on one of the upper cover 4 and the limiting slip ring 6, and a first sliding shaft 8 disposed on the other. The first track groove 7 includes a first lifting slide groove 9 that gradually slopes downwards, and a first positioning slide groove 10 and a second positioning slide groove 11 horizontally disposed at the upper end and lower end of the first lifting slide groove 9, respectively. In this embodiment, the first sliding shaft 8 is cylindrical. This first guide structure is simple. The inclined first lifting slide groove 9 is used to realize the lifting movement of the upper cover 4 relative to the limiting slip ring 6, and the first positioning slide groove 10 and the second positioning slide groove 11 horizontally disposed at both ends of the first lifting slide groove 9 are used to realize the positioning of the upper cover 4 when it rises to the highest point of the limiting slip ring 6 and when it falls to the lowest point of the limiting slip ring 6.

[0031] The second guide structure includes a second track groove 12 disposed on one of the base 3 and the limiting slip ring 6, and a second sliding shaft 13 disposed on the other. The second track groove 12 includes a second lifting slide groove 14 that gradually slopes downwards, and a third positioning slide groove 15 and a fourth positioning slide groove 16 horizontally disposed at the upper end and lower end of the second lifting slide groove 14, respectively. In this embodiment, the second sliding shaft 13 is columnar. This second guide structure is simple. The inclined second lifting slide groove 14 is used to realize the lifting movement of the limiting slip ring 6 relative to the base 3, and the third positioning slide groove 15 and the fourth positioning slide groove 16 horizontally disposed at both ends of the second lifting slide groove 14 are used to realize the positioning of the limiting slip ring 6 when it rises to the highest point of the base 3 and descends to the lowest point of the base 3.

[0032] The first track groove 7 and the second track groove 12 are both set on the limiting slip ring 6. The first sliding shaft 8 is set on the upper cover 4, and the second sliding shaft 13 is set on the base 3. When the upper cover 4 is rotated in the forward direction, the first sliding shaft 8 slides from bottom to top relative to the first track groove 7, and the second sliding shaft 13 slides from top to bottom relative to the second track groove 12. When the upper cover 4 is rotated in the reverse direction, the first sliding shaft 8 slides from top to bottom relative to the first track groove 7, and the second sliding shaft 13 slides from bottom to top relative to the second track groove 12. Setting the first track groove 7 and the second track groove 12 on the limiting slip ring 6 makes the overall appearance simpler.

[0033] The number of first track grooves 7 and second track grooves 12 is equal, and the number of each is at least two. The first track grooves 7 and second track grooves 12 are alternately arranged on the limiting slip ring 6 along the circumferential direction. In this embodiment, four first track grooves 7 and four second track grooves 12 are provided, and four first sliding shafts 8 and four second sliding shafts 13 are also provided. This arrangement is reasonable and facilitates the separate arrangement of the first guide structure and the second guide structure.

[0034] It also includes a first slot 17 disposed on the inner side wall of the upper cover 4 and a first block 18 disposed within the first slot 17. The first slot 17 extends upward from the bottom of the upper cover 4, and the first block 18 is installed into the first slot 17 from bottom to top. The first sliding shaft 8 is disposed inside the first block 18. In this embodiment, both the first slot 17 and the first block 18 are T-shaped. Since the first sliding shaft 8 and the first track groove 7 experience wear during sliding, they are disposed on the detachably connected first block 18. After wear, only the first block 18 needs to be replaced, without replacing the entire upper cover 4, resulting in lower operating costs. In addition, the structure of the first slot 17 facilitates the installation of the first block 18.

[0035] It also includes a second slot 19 disposed on the outer side wall of the base 3 and a second block 20 disposed within the second slot 19. The second slot 19 extends downward from the top of the base 3, and the second block 20 is installed into the second slot 19 from top to bottom. The second sliding shaft 13 is disposed on the outer side of the second block 20. In this embodiment, both the second slot 19 and the second block 20 are T-shaped. Since the second sliding shaft 13 and the second track groove 12 experience wear during sliding, it is disposed on the detachably connected second block 20. After wear, only the second block 20 can be replaced without replacing the entire base 3, resulting in lower operating costs. In addition, the structure of the second slot 19 facilitates the installation of the second block 20.

[0036] Multiple first protruding ribs 21 are evenly distributed along the circumferential direction on the inner sidewall of the upper cover 4, and the extension direction of each first protruding rib 21 is consistent with the lifting direction of the upper cover 4. This arrangement can increase the friction between the upper cover 4 and the limiting slip ring 6, making the movement of the upper cover 4 more stable and ensuring reliable limiting when it moves to the highest or lowest position.

[0037] Multiple second protruding ribs 22 are evenly distributed along the circumferential direction on the outer side wall of the base 3, and the extension direction of each second protruding rib 22 is consistent with the lifting direction of the limiting slip ring 6. This arrangement increases the friction between the base 3 and the limiting slip ring 6, so that when the upper cover 4 moves up and down relative to the limiting slip ring 6, the base 3 and the limiting slip ring 6 can remain temporarily stationary. Only when the upper cover 4 moves to the limit position of the limiting slip ring 6 will the limiting slip ring 6 move up and down relative to the base 3. That is to say, during the lifting and lowering process of the upper cover 4, the upper cover 4 first moves up and down relative to the limiting slip ring 6, and then the limiting slip ring 6 moves up and down relative to the base 3, making the lifting and lowering of the upper cover 4 more stable. In addition, increasing the friction between the base 3 and the limiting slip ring 6 also makes the movement of the limiting slip ring 6 more stable and can obtain reliable limiting when it moves to the highest or lowest position.

[0038] The installation steps for the magnetic levitation globe in this embodiment are as follows:

[0039] (1) In the initial state, the upper cover 4 is completely lowered, the first sliding shaft 8 of the upper cover 4 is located in the second positioning groove 11 of the first track groove 7 of the limiting slip ring 6, and the second sliding shaft 13 of the base 3 is located in the third positioning groove 15 of the second track groove 12 of the limiting slip ring 6. The limiting slip ring 6 is hidden between the upper cover 4 and the base 3.

[0040] (2) After placing the ball 2 into the positioning hole 5 at the top of the upper cover 4, rotate the upper cover 4 clockwise. The first sliding shaft 8 of the upper cover 4 exits the second positioning slide groove 11 of the first track groove 7 and slides upward relative to the first lifting slide groove 9. During this process, the upper cover 4 continuously rises relative to the limiting slip ring 6. When the first sliding shaft 8 slides into the first positioning slide groove 10 at the top, the upper cover 4 is positioned at the highest point of the limiting slip ring 6. After that, the upper cover 4 drives the limiting slip ring 6 to rise upward relative to the base 3. The second sliding shaft 13 on the base 3 exits the third positioning slide groove 15 of the second track groove 12 and slides upward relative to the second lifting slide groove 14. Sliding from top to bottom, when the second sliding shaft 13 slides into the fourth positioning groove 16 at the bottom, the limiting slip ring 6 is positioned at the highest point of the base 3. At this time, the total height of the upper cover 4 relative to the base 3 is the height of the upper cover 4 relative to the limiting slip ring 6 plus the height of the limiting slip ring 6 relative to the base 3. In this way, the lifting height of the upper cover 4 is used to position the upper and lower positions of the ball 2 relative to the base 1. The ball 2 itself is also positioned in the positioning hole 5 at the top of the upper cover 4. That is, the front-back position and left-right position of the ball 2 relative to the base 1 are also determined. Therefore, the balance position of the ball 2 relative to the base 1 can be determined.

[0041] (3) Rotate the top cover 4 in the opposite direction. The first sliding shaft 8 of the top cover 4 exits the first positioning slide groove 10 of the first track groove 7 and slides from top to bottom relative to the first lifting slide groove 9. During this process, the top cover 4 continuously descends relative to the limiting slip ring 6. When the first sliding shaft 8 slides into the second positioning slide groove 11 at the bottom, the top cover 4 is positioned at the lowest point of the limiting slip ring 6. After that, the top cover 4 drives the limiting slip ring 6 to descend relative to the base 3. The second sliding shaft 13 on the base 3 exits the fourth positioning slide groove 16 of the second track groove 12 and slides from bottom to top relative to the second lifting slide groove 14. When the second sliding shaft 13 slides into the third positioning slide groove 15 at the top, the limiting slip ring 6 is positioned at the lowest point of the base 3. At this time, the ball 2 separates from the top cover 4 and floats on the base 1. The limiting slip ring 6 is hidden again between the top cover 4 and the base 3.

Claims

1. A magnetically levitated globe, comprising a base (1) and a sphere (2) levitable on the base (1), characterized in that: The base (1) includes a base (3) and a top cover (4) that can be raised and lowered on the base (3). The top of the top cover (4) is provided with a positioning hole or positioning groove (5) for placing the ball (2). When the top cover (4) is raised, the ball (2) placed in the positioning hole or positioning groove (5) rises to the equilibrium position. When the top cover (4) is lowered, the ball (2) separates from the top cover (4) and floats on the base (1).

2. A magnetically levitated globe according to claim 1, characterized in that: The base (1) further includes a limiting slip ring (6) rotatably sleeved outside the base (3), the upper cover (4) is rotatably sleeved outside the limiting slip ring (6), a first guide structure is provided between the upper cover (4) and the limiting slip ring (6), and a second guide structure is provided between the base (3) and the limiting slip ring (6); when the upper cover (4) is rotated in the forward direction, the first guide structure guides the upper cover (4) to rise along the limiting slip ring (6) and the second guide structure guides the limiting slip ring (6) to rise along the base (3); when the upper cover (4) is rotated in the reverse direction, the first guide structure guides the upper cover (4) to fall along the limiting slip ring (6) and the second guide structure guides the limiting slip ring (6) to fall along the base (3).

3. A magnetically levitated globe according to claim 2, characterized in that: The first guide structure includes a first track groove (7) disposed on one of the upper cover (4) and the limiting slip ring (6) and a first sliding shaft (8) disposed on the other. The first track groove (7) includes a first lifting slide groove (9) that gradually slopes from top to bottom, and a first positioning slide groove (10) and a second positioning slide groove (11) that are horizontally disposed at the upper end and the lower end of the first lifting slide groove (9).

4. A magnetically levitated globe according to claim 3, characterized in that: The second guide structure includes a second track groove (12) disposed on one of the base (3) and the limiting slip ring (6) and a second sliding shaft (13) disposed on the other. The second track groove (12) includes a second lifting slide groove (14) that gradually slopes from top to bottom, and a third positioning slide groove (15) and a fourth positioning slide groove (16) that are horizontally disposed at the upper end and the lower end of the second lifting slide groove (14).

5. A magnetically levitated globe according to claim 4, characterized in that: The first track groove (7) and the second track groove (12) are both provided on the limiting slip ring (6), the first sliding shaft (8) is provided on the upper cover (4), and the second sliding shaft (13) is provided on the base (3). When the upper cover (4) is rotated in the forward direction, the first sliding shaft (8) slides from bottom to top relative to the first track groove (7) and the second sliding shaft (13) slides from top to bottom relative to the second track groove (12). When the upper cover (4) is rotated in the reverse direction, the first sliding shaft (8) slides from top to bottom relative to the first track groove (7) and the second sliding shaft (13) slides from bottom to top relative to the second track groove (12).

6. A magnetically levitated globe according to claim 5, characterized in that: The number of the first track groove (7) and the second track groove (12) are equal and the number of each is at least two. The first track groove (7) and the second track groove (12) are alternately arranged on the limiting slip ring (6) in the circumferential direction.

7. A magnetically levitated globe according to claim 5, characterized in that: It also includes a first slot (17) disposed on the inner side wall of the upper cover (4) and a first block (18) disposed in the first slot (17). The first slot (17) extends upward from the bottom of the upper cover (4), and the first block (18) is installed into the first slot (17) from bottom to top. The first sliding shaft (8) is disposed inside the first block (18).

8. A magnetically levitated globe according to claim 5, characterized in that: It also includes a second slot (19) disposed on the outer side wall of the base (3) and a second block (20) disposed in the second slot (19). The second slot (19) extends downward from the top of the base (3), and the second block (20) is installed into the second slot (19) from top to bottom. The second sliding shaft (13) is disposed on the outside of the second block (20).

9. A magnetically levitated globe according to claim 2, characterized in that: Multiple first protruding ridges (21) are evenly distributed along the circumferential direction on the inner side wall of the upper cover (4), and the extension direction of each first protruding ridge (21) is consistent with the lifting direction of the upper cover (4).

10. A magnetically levitated globe according to claim 2, characterized in that: Multiple second protrusions (22) are evenly distributed along the circumferential direction on the outer side wall of the base (3), and the extension direction of each second protrusion (22) is consistent with the lifting direction of the limiting slip ring (6).

Images