Center axis structure of a magic cube

Abstract

The present invention relates to a central axis structure of a Rubik's Cube. The central axis structure includes a mounting base and several connecting shafts mounted on the mounting base. A linkage structure is provided inside the mounting base, and several connecting shafts are all connected to the linkage structure to enable the several connecting shafts to be linked through the linkage structure; or the central axis structure includes a mounting base, several connecting shafts mounted on the mounting base, and a connecting shaft mounted on the mounting base. A linkage structure is provided inside the mounting base, and several connecting shafts and the connecting shaft are all connected to the linkage structure to enable the several connecting shafts and the connecting shaft to be linked through the linkage structure. The central axis structure has made significant changes compared with the previous central axis structure, enriching the setting methods of the central axis structure; when the central axis structure is assembled into a Rubik's Cube, the Rubik's Cube can simultaneously adjust the axial distance of the center blocks through the central axis structure, making it easier to adjust the axial distance of the center blocks, and the adjustment of the axial distances of multiple center blocks is the same.

Description

Technical Field

[0001] This invention relates to the technical field of Rubik's Cubes, and in particular to a central axis structure for Rubik's Cubes. Background Technology

[0002] Rubik's Cubes include odd-order and even-order cubes. Common odd-order cubes include 3x3, 5x5, 7x7, 9x9, and 11x11 cubes, among which the 3x3 cube is the most common. The most common even-order cube is the 2x2 cube.

[0003] The main body of the 3x3 Rubik's Cube is a square structure, consisting of 26 small cubes and a central axis structure. The small cubes include six center cubes located at the center of each face of the cube, eight corner cubes located at the corners of the cube, and twelve edge cubes located between adjacent corner cubes. Thus, each face of the cube has nine small cubes. Based on the rotational characteristics of the central axis structure, each layer of the cube can be rotated freely.

[0004] To attract more people to enjoy Rubik's Cube, a Rubik's Cube competition is held. During the competition, participants need to rotate the cube quickly in order to rearrange it in the shortest possible time.

[0005] To meet the requirements of rapid Rubik's Cube rotation in competitions, Chinese invention patent CN110038293A discloses a Rubik's Cube with adjustable rotation performance. This adjustable-performance Rubik's Cube uses rotating blocks and floating parts to adjust its rotation performance, thereby optimizing the playing experience.

[0006] The existing technical solutions described above have the following drawbacks: Although the Rubik's Cube can adjust the axis spacing of the center pieces by using floating parts to regulate the cube's rotation performance, the simple structure of the three-dimensional cross axis means that its various axes cannot be linked. This results in the floating parts within the center pieces not being able to move together, making it cumbersome to adjust the axis spacing of the center pieces by adjusting the floating parts sequentially. Furthermore, it is difficult to ensure that the axis spacing of multiple adjusted center pieces is equal, thus affecting the Rubik's Cube playing experience. Therefore, our company has developed a novel center axis structure where the various axes can be linked. When the center axis structure is assembled into a Rubik's Cube, the axis spacing of the center pieces can be adjusted simultaneously and equally. Summary of the Invention

[0007] The purpose of this invention is to provide a central axis structure for a Rubik's Cube. The central axis structure includes several axes, and there is a linkage structure between the axes to achieve linkage between the axes. When the central axis structure is assembled into a Rubik's Cube, the axis spacing of the central pieces of the Rubik's Cube can be adjusted simultaneously through the central axis structure, thereby optimizing the Rubik's Cube playing experience.

[0008] The above-mentioned objective of this invention is achieved through the following technical solutions:

[0009] A central axis structure for a Rubik's Cube, the central axis structure including a mounting base and a plurality of connecting shafts mounted on the mounting base, the mounting base having a linkage structure, and the plurality of connecting shafts being connected to the linkage structure to achieve linkage of the plurality of connecting shafts through the linkage structure;

[0010] Alternatively, the central shaft structure may include a mounting base, several connecting shafts mounted on the mounting base, and a connecting shaft mounted on the mounting base. The mounting base is provided with a linkage structure, and the several connecting shafts and connecting shafts are all connected to the linkage structure to realize the linkage of the several connecting shafts and connecting shafts through the linkage structure.

[0011] The present invention is further configured such that: the linkage structure includes a gear structure, the gear structure includes at least three first gears and at least one second gear meshing with the first gears.

[0012] The present invention is further configured such that the transmission ratio of the plurality of gears in the gear structure is one to one.

[0013] The present invention is further configured such that: the first gear and the second gear are both mounted on the connecting shaft; and / or the first gear and the second gear are respectively mounted on the connecting shaft and the connecting shaft; and / or the gear structure further includes a third gear, wherein the third gear and the second gear are both mounted on the connecting shaft, and the first gear is mounted on the connecting shaft.

[0014] The present invention is further configured such that: there are four first gears, and the axes of the four first gears are located in the same plane; there are preferably two second gears, and the axes of the two second gears are located on the same straight line; the straight line containing the axes of the two second gears is preferably perpendicular to the plane formed by the axes of the four first gears; and / or the axes of the second gear and the third gear are preferably located on the same straight line; and / or the straight line containing the axes of the second gear and the third gear is preferably perpendicular to the plane formed by the axes of the four first gears.

[0015] The invention is further configured such that: a locking member is internally threaded onto the mounting base, the connecting shaft and / or coupling shaft passes through the locking member, and the locking member abuts against the gear of the gear structure to limit the range of motion of the gear structure within the mounting base.

[0016] The invention is further configured such that: a cutting groove for mounting a gear structure is provided on the side of one end of the connecting shaft; the connecting shaft is mounted to the gear structure through the cutting groove; a screw is preferably threaded onto one end of the connecting shaft, the screw extends into the connecting shaft, and the screw abuts against the gear structure to prevent the gear structure from dislodging from the connecting shaft; a connecting groove is preferably provided on the end of the connecting shaft away from the cutting groove, the connecting groove being recessed along the circumference of the connecting shaft; and a mounting block is preferably provided on the side of the connecting shaft, the mounting block being located between the connecting groove and the cutting groove.

[0017] The invention is further configured such that: both ends of the connecting shaft are provided with connecting grooves, the connecting grooves being recessed along the circumferential side of the connecting shaft; preferably, the side of the connecting shaft is provided with a mounting block, the mounting block being located between two connecting grooves; preferably, the connecting shaft is provided with a mounting piece for mounting a gear structure, the mounting piece being located between two connecting grooves and abutting against the gear structure; preferably, the connecting shaft is provided with a mounting strip for mounting a gear structure, the mounting strip being located between the mounting piece and the mounting block, the mounting strip being engaged within the gear structure to achieve synchronous movement of the connecting shaft and the gear structure.

[0018] The invention is further configured such that: the gear of the gear structure is provided with a mounting groove that cooperates with the mounting block and the mounting strip; the gear passes through the mounting groove through the mounting block and / or the mounting strip to facilitate the assembly of the central shaft structure; the gear is linked with the mounting strip through the mounting groove to realize synchronous movement of the shaft and the gear.

[0019] The present invention is further configured such that: there is a gap between a plurality of the connecting shafts; and / or there is a gap between a plurality of the connecting shafts, and there is a gap between the connecting shaft and the connecting rod.

[0020] In summary, the beneficial technical effects of the present invention are as follows:

[0021] 1. This invention is scientifically and rationally designed with a simple structure. Compared with existing technologies, the central axis structure includes several connecting shafts and / or connecting shafts, all of which are mounted on a mounting base. There are gaps between the connecting shafts or between the connecting shafts and the connecting shafts. A linkage structure is provided between the connecting shafts and / or between the connecting shafts and the connecting shafts to achieve linkage between the connecting shafts and / or between the connecting shafts and the connecting shafts. The central axis structure represents a significant change from previous central axis structures, enriching the ways in which central axis structures can be set up. When the central axis structure is assembled into a Rubik's Cube, the Rubik's Cube can simultaneously adjust the axis spacing of the center pieces through the central axis structure, making it easier to adjust the axis spacing of the center pieces, and the axis spacing of multiple center pieces can be adjusted in the same way, thereby optimizing the Rubik's Cube playing experience.

[0022] 2. The linkage structure includes a mounting base and a gear structure placed in the mounting base. The gear structure includes a first gear, a second gear and / or a third gear. The first gear, the second gear and / or the third gear are all connected to the connecting shaft and / or the coupling shaft. The first gear and the second gear mesh, and the third gear rotates synchronously with the second gear through the coupling shaft to achieve linkage between the connecting shaft and / or the coupling shaft.

[0023] 3. One end of the connecting shaft is provided with a cutting groove, which is connected to the first gear through the cutting groove. The end of the connecting shaft is provided with a screw, which abuts against the first gear to prevent the first gear from disengaging from the connecting shaft, thereby realizing the linkage between the first gear and the connecting shaft.

[0024] 4. The connecting shaft is equipped with a mounting plate, and the second gear or the third gear is mounted on the connecting shaft through the mounting plate. The second gear or the third gear can rotate relative to the connecting shaft. The connecting shaft is equipped with a mounting strip, and the second gear is mounted on the connecting shaft through the mounting strip to restrict the rotation of the second gear relative to the connecting shaft, so as to realize the linkage between the second gear and the connecting shaft.

[0025] 5. The mounting base has multiple locking parts connected by internal threads. These locking parts abut against the first gear, the second gear, or the third gear respectively to limit the range of motion of the first gear, the second gear, or the third gear, which is conducive to the mutual linkage of the first gear, the second gear, and the third gear.

[0026] 6. The transmission ratio of several gears in the gear structure is one to one, so that the connecting shaft and the linkage shaft achieve the same rotation angle through the gear structure. Attached Figure Description

[0027] Figure 1 This is an exploded view of the present invention; Figure 2 This is a structural diagram of the central axis structure; Figure 3 This is an exploded view of the central axis structure; Figure 4 This is an exploded view of the central axis structure; Figure 5 This is an exploded view of the central axis structure; Figure 6 This is an exploded view of the central axis structure; Figure 7 This is an exploded view of the center block;

[0028] Figure 8 This is an exploded view of the center block; Figure 9 It is an exploded view of the edge piece; Figure 10 It is an exploded view of the edge piece; Figure 11 This is an exploded view of a corner piece; Figure 12 This is an exploded view of a corner piece; Figure 13 This is an exploded view of a corner piece;

[0029] In the diagram, 1 is the central shaft structure; 11 is the connecting shaft; 111 is the cutting groove; 112 is the screw; 12 is the connecting shaft; 121 is the mounting plate; 122 is the mounting strip; 13 is the connecting groove; and 14 is the mounting block.

[0030] 2. Center block body; 21. Center block shell; 211. Oil outlet; 212. Oil leakage hole; 213. Opening groove; 214. Fixing strip; 22. Center block shell cover; 221. Fixing groove; 222. Sealing groove; 23. Snap-fit ​​structure; 231. Enclosure cover; 2311. Enclosure hole; 2312. Limiting groove; 2313. Adjusting block; 2314. First mark; 232. Sleeve; 2321. Limiting ring; 2322. Elastic groove; 2323. Inclined surface; 24. Elastic mechanism; 241. Bearing structure; 2411, Bearing bottom block; 2412, Bearing top block; 2413, Bearing hole; 2414, Stepped section; 2415, First graduation; 2416, Oil storage chamber; 2417, Buckle hole; 2418, Buckle block; 242, Compression spring; 243, Oil filling structure; 2431, Oil filling pipe; 2432, Oil filling hole; 25, Oil storage module; 251, Oil storage component; 2511, Oil outlet pipe; 2512, Oil inlet pipe; 2513, Pressure diaphragm; 252, Pressure plate; 26, Sealing ring;

[0031] 3. Corner block body; 31. Corner block shell; 311. Adjustment hole; 312. Second scale; 313. Positioning strip; 314. Assembly cylinder; 32. Corner block shell cover; 321. Assembly surface; 3211. Assembly groove; 3212. Assembly strip; 322. Locking strip; 323. Locking groove; 324. Positioning groove; 325. Assembly rod; 33. Corner block locking foot;

[0032] 4. Block body; 41. Block shell; 411. Assembly slot; 412. Fixing cylinder; 413. Adjustment hole; 414. Third scale; 415. Locking strip; 416. Assembly cylinder; 417. Locking cylinder; 418. Assembly cylinder; 42. Block shell cover; 421. Locking strip; 422. Locking groove; 423. Locking groove; 424. Assembly rod; 43. Locking foot assembly; 431. Large locking foot; 432. Small locking foot; 433. Buckle shaft; 434. Torsion spring; 44. Assembly assembly; 441. Assembly slot; 442. Assembly strip;

[0033] 5. Linkage structure; 51. Gear structure; 511. First gear; 512. Second gear; 513. Third gear; 514. Mounting slot; 52. Mounting base; 53. Locking element;

[0034] 6. Linkage mechanism; 61. Fixed bushing; 611. Limit block; 62. Linkage gear; 63. Drive gear; 631. Threaded groove; 632. Locking block; 64. Adjusting cover; 641. Locking groove; 642. Drive groove; 643. Second mark; 65. Adjusting cylinder; 651. Adjusting rod;

[0035] 7. Linkage device; 71. Mounting cylinder; 711. Limiting hole; 712. Spiral groove; 713. Snap-fit ​​block; 72. Adjustment cover; 721. Snap-fit ​​groove; 722. Groove; 723. Adjustment groove; 724. Third mark; 73. Adjustment cylinder; 731. Adjustment rod; 74. Limiting component; 741. Limiting clamp; 742. Splicing rod; 75. Limiting cover; 751. Splicing groove; 752. Flange; 753. Fixing rod; 76. Washer clamp; 761. Protrusion; 77. Limiting shaft; 8. Magnetic component. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings.

[0037] Reference Figure 1 The Rubik's Cube disclosed in this invention includes a central axis structure 1, six center block bodies 2, eight corner block bodies 3, and twelve edge block bodies 4. The central axis structure 1 is located at the center of the Rubik's Cube, and its end is connected to the center block bodies 2. The corner block bodies 3 and edge block bodies 4 are positioned between the central axis structure 1 and the center block bodies 2. The sidewalls of the edge block bodies 4 are in contact with the sidewalls of the center block bodies 2. The corner block bodies 3 and edge block bodies 4 can be slidably connected, and the two sidewalls of the corner block bodies 3 are in contact with the sidewalls of the edge block bodies 4, thereby forming the Rubik's Cube. A magnetic module is provided between the edge block bodies 4 and the corner block bodies 3. The magnetic module includes magnetic components 8 correspondingly disposed in the edge block bodies 4 and the corner block bodies 3. When the Rubik's Cube is rotated, the magnetic module drives the edge block bodies 4 and the corner block bodies 3 to quickly align and position, thereby optimizing the Rubik's Cube playing experience.

[0038] Reference Figures 2 to 6 As can be seen, there are various ways to set up the central axis structure 1. The first way to set up the central axis structure 1 is as follows: (Refer to...) Figures 2 to 4The central shaft structure 1 includes six three-dimensionally shaped connecting shafts 11 and a mounting base 52. The connecting shafts 11 are mounted on the mounting base 52, and there are gaps between the six connecting shafts 11 to allow for rotation. A linkage structure 5 is provided between the six connecting shafts 11, and the linkage structure 5 is installed inside the mounting base 52 to enable the six connecting shafts 11 to move together. The linkage structure 5 includes a gear structure 51, which is connected to each of the six connecting shafts 11. The mounting base 52 has six locking elements 53, which are threadedly connected to the mounting base 52 and abut against the gear structure 51 to prevent the gear structure 51 from disengaging from the mounting base 52, thereby limiting the range of motion of the gear structure 51 within the mounting base 52. The gear structure 51 includes four first gears 511 and two second gears 512, which mesh with each other. The ratio is 1:1. Cutting grooves 111 are provided on both sides of one end of the connecting shaft 11. The connecting shaft 11 rotatably passes through the protruding end of the locking member 53 and connects to the first gear 511 and the second gear 512 respectively via the cutting grooves 111, thus enabling the first gear 511 and the second gear 512 to be mounted on the connecting shaft 11. A screw 112 is threaded onto one end of the connecting shaft 11. The screw 112 is screwed into the connecting shaft 11 and abuts against the first gear 511 and the second gear 512 respectively, preventing the first gear 511 and the second gear 512 from disengaging from the connecting shaft 11. A connecting groove 13 is provided at the end of the connecting shaft 11 away from the cutting grooves 111. The connecting groove 13 is recessed along the circumference of the connecting shaft 11 to facilitate the connection of the connecting shaft 11 to the central block body 2 via the connecting groove 13. Two sets of mounting blocks 14 are provided on both sides of the connecting shaft 11. The mounting blocks 14 are located between the connecting groove 13 and the cutting groove 111. When the six connecting shafts 11 are assembled into the central shaft structure 1, the mounting blocks 14 are located between the center of the connecting groove 13 and the center shaft structure 1. Each set of mounting blocks 14 consists of two mounting blocks 14 provided on both sides of the connecting shaft 11, and the mounting blocks 14 are parallel to the length direction of the connecting shaft 11. Among them, the first gear 511 and the second gear 512 are a spur gear and a steering gear, respectively. The first gear 511 and the second gear 512 can also be bevel gears of different specifications. The axes of the four first gears 511 are located in the same plane, and the axes of the two second gears 512 are located on the same straight line. The straight line containing the axes of the two second gears 512 is perpendicular to the plane containing the axes of the four first gears 511, so as to facilitate the meshing and linkage of the four first gears 511 and the two second gears 512. Rotating the connecting shaft 11 drives the other connecting shaft 11 to rotate through the gear structure 51.

[0039] Reference Figure 6The second configuration of the central shaft structure 1 is as follows: The central shaft structure 1 includes four connecting shafts 11, connecting shafts 12, and a mounting base 52. The connecting shafts 11 and connecting shafts 12 are mounted on the mounting base 52. There are gaps between the four connecting shafts 11 and connecting shafts 12, and there are gaps between the four connecting shafts 11 to facilitate the rotation of the connecting shafts 11 and connecting shafts 12. A linkage structure 5 is provided between the four connecting shafts 11 and connecting shafts 12. The linkage structure 5 is installed in the mounting base 52 so that the connecting shafts 11 and connecting shafts 12 can be linked through the linkage structure 5. The linkage structure 5 includes a gear structure 51, which is placed inside the mounting base 52. The gear structure 51 is connected to four connecting shafts 11 and connecting shafts 12 respectively. The mounting base 52 is provided with six locking members 53, which are threadedly connected to the mounting base 52 and abut against the gear structure 51 to restrict the gear structure 51 from disengaging from the mounting base 52, thereby limiting the range of motion of the gear structure 51 within the mounting base 52. The gear structure 51 includes four first gears 511 and two second gears 512. The first gears 511 and the second gears 512 mesh, and the transmission ratio of the first gears 511 and the second gears 512 is one to one. The connecting shaft 11 has cutting grooves 111 on both sides of one end. The connecting shaft 11 can rotatably pass through the protruding end of the locking member 53 and connect to the first gear 511 through the cutting grooves 111, so that the first gear 511 is mounted on the connecting shaft 11. A screw 112 is threaded to one end of the connecting shaft 11. The screw 112 is screwed into the connecting shaft 11 and abuts against the first gear 511 to prevent the first gear 511 from dislodging from the connecting shaft 11. A connecting groove 13 is provided at the end of the connecting shaft 11 away from the cutting grooves 111. The connecting groove 13 is formed concavely along the circumference of the connecting shaft 11 so that the connecting shaft 11 can be connected to the central block body 2 through the connecting groove 13. Mounting blocks 14 are provided on both sides of the connecting shaft 11. The mounting blocks 14 are located between the connecting grooves 13 and the cutting grooves 111. The connecting shaft 12 has connecting grooves 13 at both ends, which are recessed along the circumference of the connecting shaft 12 to facilitate connection between the connecting shaft 12 and the central block body 2. Two sets of mounting blocks 14 are provided on both sides of the connecting shaft 12, located between the two connecting grooves 13. Each set of mounting blocks 14 consists of two blocks located on the sides of the connecting shaft 12. When the four connecting shafts 11 and the connecting shaft 12 are assembled into the central shaft structure 1, the mounting blocks 14 are located between the connecting grooves 13 and the center of the central shaft structure 1, and are parallel to the connecting shaft 12. A mounting plate 121 for mounting the second gear 512 is provided on the circumference of the connecting shaft 12. The mounting plate 121 is located between the two sets of mounting blocks 14, is circular in shape, and abuts against the second gear 512, thus mounting the second gear 512 onto the connecting shaft 12.The side of the connecting shaft 12 is provided with a mounting strip 122 for mounting the second gear 512. The mounting strip 122 is located between the mounting plate 121 and the mounting block 14, and is parallel to the connecting shaft 12. When the mounting strip 122 is engaged with the second gear 512, the second gear 512 is mounted on the connecting shaft 12, and the mounting strip 122 restricts the rotation of the second gear 512 relative to the connecting shaft 12. The first gear 511, the second gear 512, and / or the locking member 53 are all provided with mounting grooves 514 that cooperate with the mounting strip 122 and / or the mounting block 14. The first gear 511, the second gear 512, and / or the locking member 53 pass through the mounting grooves 514 through the mounting strip 122 and / or the mounting block 14 to facilitate the assembly of the central shaft structure 1. The first gear 511 and the second gear 512 are bevel gears of different specifications. The axes of the four first gears 511 are located in the same plane, which also makes the axes of the four connecting shafts 11 located in the same plane. Furthermore, the plane containing the axes of the four first gears 511 is the same as the plane containing the axes of the four connecting shafts 11. The axes of the two second gears 512 are located on the same straight line, which is also the same as the axis of the connecting shaft 12. The plane containing the axes of the two second gears 512 is perpendicular to the plane containing the axes of the four first gears 511, making the connecting shaft 12 perpendicular to the plane containing the axes of the four first gears 511. This allows the four first gears 511 and the two second gears 512 to mesh and move together. Rotating the connecting shaft 12 drives the four connecting shafts 11 to rotate via the gear structure 51. Rotating the connecting shaft 11 drives the connecting shaft 12 and the other connecting shaft 11 to rotate via the gear structure 51.

[0040] Reference Figure 5The third configuration of the central shaft structure 1 differs from the second configuration in that it includes a gear structure 51. The gear structure 51 comprises four gears: a first gear 511, a second gear 512, and a third gear 513. Alternatively, the gear structure 51 may consist only of four gears: a first gear 511 and a second gear 512. The first gears 511 and 512 mesh, and the transmission ratio between them is 1:1. The third gear 513 is a toothless gear. The structure and / or method by which the first gear 511 is installed on the connecting shaft 11 is the same as the second arrangement method of the central shaft structure 1, and will not be described further here. The third gear 513 passes through the mounting block 14 and the mounting strip 122 in sequence and abuts against the mounting plate 121, so that the third gear 513 is installed on the connecting shaft 12 and can rotate relative to the connecting shaft 12. The second gear 512 passes through the mounting block 14 and is sleeved on the mounting strip 122, so that the second gear 512 is installed on the connecting shaft 12, and the mounting strip 122 restricts the rotation of the second gear 512 relative to the connecting shaft 12. The first gear 511, the second gear 512, the third gear 513 and / or the locking member 53 are all provided with mounting grooves 514 that match the mounting strip 122 and / or the mounting block 14. The first gear 511, the second gear 512, the third gear 513 and / or the locking member 53 pass through the mounting grooves 514 through the mounting strip 122 and / or the mounting block 14 to facilitate the assembly of the central shaft structure 1. The first gear 511 and the second gear 512 are a spur gear and a steering gear, respectively. The axes of the four first gears 511 are located in the same plane, which also makes the axes of the four connecting shafts 11 located in the same plane. The plane containing the axes of the four first gears 511 is the same plane as the plane containing the axes of the four connecting shafts 11. The axes of the second gear 512 and the third gear 513 are located on the same straight line. The straight line containing the axes of the second gear 512 and the third gear 513 is on the same straight line as the axis of the connecting shaft 12. The straight line containing the axes of the second gear 512 and the third gear 513 is perpendicular to the plane containing the axes of the four first gears 511, which makes the connecting shaft 12 perpendicular to the plane containing the axes of the four first gears 511, so that the four first gears 511 and the second gear 512 can mesh and move together.

[0041] Reference Figure 7 and Figure 8The center block body 2 includes a center block shell 21 and a center block shell cover 22 that covers the center block shell 21. An oil storage module 25, an elastic mechanism 24, and a snap-fit ​​structure 23 are sequentially arranged between the center block shell 21 and the center block shell cover 22. A connecting shaft 11 and a connecting shaft 12 pass through the protruding ends of the center block shell 21, the oil storage module 25, and the elastic mechanism 24, respectively, and can be linked to the snap-fit ​​structure 23 to achieve connection between the center block body 2 and the central shaft structure 1. The center block shell cover 22 is circular in shape. When the cube is not rotating, there is a gap between the center block shell cover 22 and the edge block body 4. When the cube is rotating and performing corrective movements, the center block shell cover 22 and the edge block body 4 make point or line contact to reduce friction between them, thereby reducing the resistance to corrective movements and facilitating corrective movements. The open end of the center piece shell 21 is circularly shaped to match the center piece shell cover 22, reducing the contact between the center piece shell 21 and the edge piece body 4. When rotating the Rubik's Cube, this reduces friction between the center piece shell 21 and the edge piece body 4, thereby reducing the resistance to the Rubik's Cube's correct movements and facilitating correct movements. The open end of the center piece shell 21 is provided with an opening groove 213, which is used to lift the center piece shell cover 22 off the center piece shell 21, so as to remove the center piece shell cover 22 from the center piece shell 21. The inner wall of the central block housing 21 is provided with four fixing strips 214. The fixing strips 214 protrude toward the center of the central block housing 21. The four fixing strips 214 are evenly distributed on the inner wall of the central block housing 21. The fixing strips 214 are close to the opening of the central block housing 21. The central block housing cover 22 is provided with fixing grooves 221 that match the fixing strips 214. The central block housing cover 22 covers the central block housing 21 so that the fixing strips 214 are engaged in the fixing grooves 221, thereby preventing the central block housing cover 22 from detaching from the central block housing 21. A sealing ring 26 is provided between the central block housing 21 and the central block housing cover 22 to prevent oil in the oil storage module 25 from leaking out between the central block housing 21 and the central block housing cover 22. The central block housing cover 22 is provided with a sealing groove 222, which is located between the fixing groove 221 and the bottom of the central block housing cover 22. The sealing ring 26 is fitted into the sealing groove 222 and abuts against the inner wall of the central block housing 21, so that the central block housing 21 and the central block housing cover 22 are in a sealed state.

[0042] The snap-fit ​​structure 23 includes a cover 231 and a sleeve 232 that is snapped into the cover 231. The sleeve 232 is elastic and preferably made of elastic plastic, such as PC plastic. The cross-section of the sleeve 232 is circular. The connecting shaft 11 and the connecting shaft 12 pass through the protruding end of the cover 231 and snap into the sleeve 232, thereby connecting the central block body 2 with the central shaft structure 1. The inner wall of the sleeve 232 is provided with a limiting ring 2321, which protrudes towards the axis of the sleeve 232. The limiting ring 2321 is snapped into the connecting groove 13 of the connecting shaft 11 or the connecting shaft 12, so as to realize the snap-fit ​​fixation of the sleeve 232 to the central shaft structure 1. The side wall of the sleeve 232 is provided with an elastic groove 2322, which passes through the limiting ring 2321 and extends to one end of the sleeve 232. When the sleeve 232 is snapped into the connecting groove 13 of the connecting shaft 11 and the connecting shaft 12, the elastic groove 2322 causes the sleeve 232 to deform so as to facilitate the snap-fit ​​fixation of the sleeve 232 to the connecting groove 13. The cover 231 is provided with a cover hole 2311, which is a stepped hole. The sleeve 232 is placed in the cover hole 2311, making the snap-fit ​​structure 23 more compact. The outer wall of the sleeve 232 is provided with a sloping surface 2323 that is concave towards the axis of the sleeve 232. The sloping surface 2323 extends to the end of one end of the sleeve 232. The sloping surface 2323 is located between the bottom of the elastic groove 2322 and the end of the sleeve 232. The sleeve 232 abuts against the wall of the wrapping hole 2311 through the sloping surface 2323, so that the sleeve 232 can rotate within the wrapping hole 2311, thereby facilitating the adjustment of the wheelbase of the center block body 2. The inner wall of the wrapping hole 2311 is provided with a limiting groove 2312 that cooperates with the mounting block 14. The connecting shaft 11 and the connecting shaft 12 pass through the wrapping hole 2311 so that the mounting block 14 can be inserted into the limiting groove 2312, thereby realizing the linkage between the wrapping cover 231 and the connecting shaft 11 and / or the connecting shaft 12 respectively. Due to the linkage between the connecting shaft 11 and the connecting shaft 12, the wrapping cover 231 is linked with the center shaft structure 1.

[0043] The elastic mechanism 24 includes a supporting structure 241 and a compression spring 242 sleeved on the supporting structure 241. Both ends of the compression spring 242 abut against the supporting structure 241. The supporting structure 241 includes a supporting base block 2411 and a supporting top block 2412 snapped together with the supporting base block 2411. The supporting base block 2411 has a snap-fit ​​hole 2417, and the supporting top block 2412 has a snap-fit ​​block 2418 that cooperates with the snap-fit ​​hole 2417. The snap-fit ​​block 2418 can movably engage with the snap-fit ​​hole 2417. On the one hand, this achieves the snap-fit ​​connection between the supporting top block 2412 and the supporting base block 2411. On the other hand, when the supporting top block 2412 moves towards the bottom of the central block housing 21, the snap-fit ​​block 2418 engages with the supporting base block 2411. Block 2418 and the supporting top block 2412 move synchronously towards the bottom of the central block housing 21, so that the buckle block 2418 can squeeze the oil storage module 25, thereby squeezing out the oil in the oil storage module 25. Since a compression spring 242 is provided between the supporting top block 2412 and the supporting bottom block 2411, the buckle block 2418 can easily return to its original shape after squeezing the oil storage module 25. The supporting bottom block 2411 has a hole for the connecting shaft 11 or the connecting shaft 12 to pass through, and the supporting top block 2412 also has a supporting hole 2413 for the connecting shaft 11 or the connecting shaft 12 to pass through. The supporting hole 2413 is a stepped hole, and the cover 231 is inserted into the supporting hole 2413, making the central block body 2 more compact. The bearing hole 2413 is provided with a number of stepped portions 2414. There is a height difference between two adjacent steps of the stepped portions 2414. The height difference is preferably 0.09mm. The stepped portions 2414 are arranged in a circle. The cover 231 is provided with an adjusting block 2313 that cooperates with the stepped portions 2414. There are four adjusting blocks 2313. The four adjusting blocks 2313 are evenly distributed on the outer wall of the cover 231. The adjusting blocks 2313 abut against the stepped portions 2414. By rotating the cover 231, the adjusting blocks 2313 can move back and forth on the stepped portions 2414, thereby adjusting the wheelbase of the center block body 2. The top support block 2412 has several first scales 2415 on its surface opposite to the bottom support block 2411, which cooperate with the step portion 2414. The several first scales 2415 are arranged around the support hole 2413. The cover 231 has a first mark 2314 facing the first scale 2415, so as to adjust the axis of the center block body 2 according to the first mark 2314 pointing to the first scale 2415, thereby adjusting the axis of the Rubik's Cube.Using tools to drive the wrapping cover 231 to rotate, on one hand, the wrapping cover 231 reciprocates on the stepped portion 2414 that supports the top piece 2412 to adjust the compression state of the elastic mechanism 24, thereby adjusting the axis distance of the center piece body 2, and thus adjusting the axis distance of the Rubik's Cube's center piece body 2; on the other hand, the wrapping cover 231 rotates synchronously with the connecting shaft 12 or the connecting shaft 11, and the connecting shaft 12 or the connecting shaft 11 drives another connecting shaft 11 and / or connecting shaft 12 to rotate through the gear structure 51, and the other connecting shaft 12 or the connecting shaft 11 rotates synchronously with another wrapping cover 231, and the other wrapping cover 231 reciprocates on the stepped portion 2414 that supports another top piece 2412 to simultaneously adjust the compression state of another elastic mechanism 24, thereby simultaneously adjusting the axis distance of another center piece body 2, and thus simultaneously adjusting the axis distance of all six center piece bodies 2 of the Rubik's Cube.

[0044] An oil storage cavity 2416 is provided on the surface of the supporting bottom block 2411 opposite to the supporting top block 2412. The opening of the oil storage cavity 2416 faces the bottom of the central block shell 21, and the oil storage module 25 is placed inside the oil storage cavity 2416. The oil storage module 25 includes an oil storage element 251 and a pressure plate 252 located between the oil storage element 251 and the bottom of the oil storage cavity 2416. The pressure plate 252 is in contact with the oil storage element 251. The oil storage element 251 is a hollow, elastic bladder to facilitate oil storage. The oil storage element 251 is made of a soft material, such as silicone, so that it can easily return to its original shape after being squeezed and deformed. Several oil outlet holes 211 are provided at the bottom of the central block shell 21. The oil outlet holes 211 are distributed in a circular pattern to facilitate the flow of oil from the oil storage module 25 through the oil outlet holes 211. The surface of the oil storage component 251 facing the oil outlet hole 211 is provided with an oil outlet pipe 2511. The oil outlet pipe 2511 and the oil outlet hole 211 can be matched in various ways, such as: the opening of the oil outlet pipe 2511 faces the oil outlet hole 211; the opening of the oil outlet pipe 2511 abuts against the oil outlet hole 211; the opening of the oil outlet pipe 2511 is placed inside the oil outlet hole 211; the oil outlet pipe 2511 is placed inside the oil outlet hole 211 and the opening of the oil outlet pipe 2511 is flush with the opening of the oil outlet hole 211; the opening of the oil outlet pipe 2511 passes through the protruding end of the oil outlet hole 211 and extends out of the central block housing 21, so as to facilitate the discharge of oil in the oil storage component 251 to the outside of the central block body 2. A refueling structure 243 for refueling the oil reservoir 251 is provided between the supporting bottom block 2411 and the supporting top block 2412. The refueling structure 243 includes a refueling pipe 2431 provided on the supporting bottom block 2411 and a refueling hole 2432 provided on the supporting top block 2412. The refueling pipe 2431 passes through the supporting bottom block 2411 and extends into the refueling hole 2432. The refueling pipe 2431 can also be flush with the surface of the refueling hole 2432 to facilitate refueling the oil reservoir 251. The refueling hole 2432 is part of the first scale 2415. The first mark 2314 facing the refueling hole 2432 indicates the maximum or minimum axial distance of the center block body 2. An oil inlet pipe 2512 is provided on the surface of the oil reservoir 251 opposite to the oil outlet pipe 2511. The oil inlet pipe 2512 extends through the protruding end of the pressure plate 252 and into the refueling pipe 2431. The oil inlet pipe 2512 can be flush with the surface of the opening of the refueling pipe 2431, so that the opening of the oil inlet pipe 2512 is placed on the surface of the supporting top block 2412, so as to facilitate the addition of oil from the oil inlet pipe 2512 into the oil reservoir 251. Both the oil inlet pipe 2512 and the oil outlet pipe 2511 are provided with pressure diaphragm flaps 2513 with openings. The openings of the pressure diaphragm flaps 2513 are arranged in a triangular star shape. By squeezing the pressure diaphragm flaps 2513, oil can pass through the oil inlet pipe 2512 and the oil outlet pipe 2511, so that oil flows into the oil reservoir 251 through the oil inlet pipe 2512 or flows out of the oil reservoir 251 through the oil outlet pipe 2511.The side wall of the central block housing 21 is provided with several oil leakage holes 212. If the oil in the oil storage component 251 overflows between the central block housing 21 and the central block housing cover 22, the oil between the central block housing 21 and the central block housing cover 22 can flow out through the oil leakage holes 212 and the oil outlet holes 211.

[0045] Reference Figure 9 and Figure 10The block body 4 includes a block shell 41 and two block shell covers 42 that cover the block shell 41. The two block shell covers 42 are fitted together, and an assembly assembly 44 is provided between the two block shell covers 42. The assembly assembly 44 includes an assembly groove 441 provided in the block shell cover 42 and an assembly strip 442 provided in the other block shell cover 42. The assembly strip 442 is inserted into the assembly groove 441 to realize the assembly of the two block shell covers 42. The assembly strip 442 and the assembly groove 441 are both located in the same block shell cover 42, and the assembly strip 442 and the assembly groove 441 are on the same straight line to facilitate the assembly of the two block shell covers 42. The assembly groove 441 is a dovetail groove to prevent the assembly strip 442 from coming out of the assembly groove 441. The edge of the prism shell cover 42 is provided with a locking strip 421 and a locking groove 422 that mate with the opening of the prism shell 41. The locking strip 421 is located inside the locking groove 422 and is arranged in a U-shape around one side of the prism shell cover 42, making the locking groove 422 U-shaped. The assembly strip 442 and the assembly groove 441 are located on the same outer side of the locking strip 421. When the prism shell cover 42 closes the prism shell 41, the locking groove 422 abuts against the opening of the prism shell 41, and the locking strip 421 abuts against the opening of the prism shell 41 and engages with the inner wall of the prism shell 41, thereby realizing the assembly of the prism shell cover 42 and the prism shell 41. The bottom of the slot 422 has a locking groove 423. The opening of the edge piece shell 41 has a locking strip 415 that mates with the locking groove 423. When the edge piece shell cover 42 closes the edge piece shell 41, the locking strip 415 is engaged in the locking groove 423 to restrict the deformation of the edge piece shell 41 and the edge piece shell cover 42. One side of the edge piece shell cover 42 has two assembly rods 424 with locking positions. The edge piece shell 41 has an assembly cylinder 416 that mates with the assembly rods 424. When the edge piece shell cover 42 closes the edge piece shell 41, the assembly rods 424 are inserted into the assembly cylinder 416 to prevent the edge piece shell cover 42 from falling off the edge piece shell 41. The bottom of the edge piece shell 41 is detachably connected to a locking foot assembly 43. The locking foot assembly 43 is slidably connected to the corner piece body 3 to facilitate the rotation of the Rubik's Cube.The locking pin assembly 43 includes a large locking pin 431, a small locking pin 432, a torsion spring 434, and a retaining shaft 433. The large locking pin 431 has two fixing cylinders 412 with locking positions, and the prism block housing 41 has a retaining cylinder 417 with locking positions. The fixing cylinders 412 are inserted into the retaining cylinders 417 to connect the large locking pin 431 and the prism block housing 41. The small locking pin 432 is located at the bottom of the large locking pin 431 away from the prism block housing 41. The prism block housing 41 has an assembly cylinder 418 inside, and the retaining shaft 433... The 33 is inserted into the assembly cylinder 418 through the protruding ends of the small locking foot 432 and the large locking foot 431, thus connecting the locking foot assembly 43 to the edge piece housing 41. The torsion spring 434 is located between the large locking foot 431 and the small locking foot 432. The torsion spring 434 is sleeved on the buckle 433, and its two ends are connected to the large locking foot 431 and the small locking foot 432 respectively, so that the locking foot assembly 43 can be twisted, thereby allowing the edge piece body 4 to twist, so that the Rubik's Cube can perform fault-tolerant movements. The outer wall of the edge piece housing 41 and the surface of the large locking foot 431 are provided with oil grooves. The oil grooves are formed in a pyramid-shaped depression to facilitate the storage of oil in the oil grooves.

[0046] The housing 41 contains two magnetic components and a linkage device 7 for simultaneously adjusting the two magnetic components. The linkage device 7 includes a mounting cylinder 71, two adjustment covers 72, two adjustment cylinders 73, a limiting component 74, a limiting shaft 77, and a limiting cover 75. The magnetic components are installed inside the adjustment cylinders 73. The adjustment covers 72 are fitted onto the mounting cylinders 71, enabling the adjustment covers 72 to engage with the mounting cylinders 71. The end of the adjustment cover 72 has a snap-fit ​​groove 721, and the outer wall of the mounting cylinder 71 has a snap-fit ​​block 713 that mates with the snap-fit ​​groove 721. The snap-fit ​​block 713 snaps into the snap-fit ​​groove 721, enabling the adjustment cover 72 and the mounting cylinder 71 to move together. Two adjustment cylinders 73 can slide into both ends of the mounting cylinder 71. The inner wall of the mounting cylinder 71 is provided with two spiral grooves 712. The outer wall of the adjustment cylinder 73 is provided with adjustment rods 731 that cooperate with the spiral grooves 712. The adjustment rods 731 are locked in the spiral grooves 712 so that the adjustment cylinders 73 can rotate in the mounting cylinder 71, realizing the reciprocating motion of the adjustment cylinders 73 in the mounting cylinder 71. The limiting shaft 77 is located in the mounting cylinder 71. The cross-section of the limiting shaft 77 is set in a regular hexagonal shape. Of course, the cross-section of the limiting shaft 77 can also be set in other polygonal shapes. The adjustment cylinders 73 are sleeved on the limiting shaft 77 to restrict the rotation of the adjustment cylinders 73 so that the mounting cylinder 71 can drive the adjustment cylinders 73 to reciprocate along the length direction of the mounting cylinder 71. A limiting hole 711 is provided in the middle of the mounting cylinder 71. Two adjustment cylinders 73 are located on both sides of the limiting hole 711. A limiting member 74 is provided in the limiting hole 711. The limiting member 74 includes a limiting clamp 741. The inner wall of the limiting clamp 741 is fitted with a limiting shaft 77. The limiting clamp 741 is sleeved on the limiting shaft 77 to restrict the rotation of the limiting shaft 77. A limiting cover 75 is located between the mounting cylinder 71 and the prism housing 41. The limiting cover 75 has a splicing groove 751. The limiting member 74 also includes a splicing rod 742. The splicing rod 742 is fixed to the outer wall of the limiting clamp 741. The splicing rod 742 is inserted into the splicing groove 751 to fix the limiting member 74, thereby fixing the limiting shaft 77. Both the mounting cylinder 71 and the adjustment cover 72 are placed inside the limiting cover 75 to facilitate the limiting cover 75 supporting the mounting cylinder 71 and the adjustment cover 72. Flanges 752 are provided on both sides of the limiting cover 75, abutting against the adjustment cover 72 to prevent the mounting cylinder 71 and the adjustment cover 72 from dislodging from the limiting cover 75. A retainer 76 is provided between the flanges 752 and the adjustment cover 72, and the retainer 76 is fitted onto the adjustment cover 72. The retainer 76 has a protrusion 761, and the adjustment cover 72 has a groove 722 that mates with the protrusion 761. The groove 722 and the snap-fit ​​groove 721 are located at both ends of the adjustment cover 72. The protrusion 761 snaps into the groove 722, thus linking the retainer 76 and the adjustment cover 72 together.The inner wall of the prism shell 41 is provided with an assembly groove 411, and the limiting cover 75 is inserted into the assembly groove 411 to fix the limiting cover 75; in addition, the locking strip 421 of the prism shell cover 42 is inserted into the assembly groove 411, so that the assembly of the prism shell 41 and the prism shell cover 42 is more fixed; the limiting cover 75 is provided with a fixing rod 753 that cooperates with the fixing cylinder 412 and the buckle 433. The fixing rod 753 is inserted into the fixing cylinder 412 and the buckle 433 respectively, on the one hand, fixing the limiting shaft 77, and on the other hand, preventing the buckle 433 from coming out of the assembly cylinder 418. The side wall of the corner block housing 41 has an adjustment hole 413. The adjustment cover 72 is placed inside the adjustment hole 413. The end of the adjustment cover 72 has an adjustment groove 723 for rotating the adjustment cover 72. The adjustment groove 723 is located inside the adjustment hole 413 so that the adjustment cover 72 can be driven to rotate by a tool through the adjustment groove 723. The adjustment cover 72 rotates synchronously with the mounting cylinder 71. Since the adjustment cylinder 73 cannot rotate, the mounting cylinder 71 drives the adjustment cylinder 73 to move back and forth inside the mounting cylinder 71, thereby simultaneously adjusting the two magnetic components placed in the adjustment cylinder 65, and thus simultaneously adjusting the magnetic components inside the corner block body 4. The adjustment cylinder 73 is not only located inside the mounting cylinder 71, but also inside the adjustment cover 72 and the adjustment hole 413, so that the magnetic components inside the adjustment cylinder 73 are closer to the corner block body 3, so that the magnetic force of the magnetic components inside the adjustment cylinder 73 can play a role. The outer wall of the prism housing 41 is provided with a third scale 414 for indicating the magnitude of the magnetic force. The third scale 414 is arranged around the adjustment hole 413. The end of the adjustment cover 72 is provided with a third mark 724 facing the scale, so as to adjust the magnitude of the magnetic force of the magnetic component inside the prism body 4 according to the scale.

[0047] Reference Figure 11 and Figure 12The corner block body 3 includes a corner block shell 31 and three corner block shell covers 32 that cover the corner block shell 31. Each side of one corner block shell cover 32 has an assembly surface 321. The assembly surface 321 has an assembly groove 3211. The other assembly surface 321 has an assembly strip 3212 that cooperates with the assembly groove 3211. The assembly strip 3212 of the corner block shell cover 32 is inserted into the assembly groove 3211 of the other corner block shell cover 32, so that the assembly surface 321 of the corner block shell cover 32 fits with the assembly surface 321 of the other corner block shell cover 32, thereby assembling the two corner block shell covers 32. The assembly groove 3211 is preferably a dovetail groove to prevent the assembly strip 3212 from coming out of the assembly groove 3211, so that the two corner block shell covers 32 are more fixed. On one side of the corner block cover 32, on the other two adjacent sides, there are a locking strip 322 and a locking groove 323 that mate with the opening of the corner block housing 31. The locking strip 322 is located inside the locking groove 323 and is connected to the assembly surface 321. When the corner block cover 32 closes the corner block housing 31, the locking groove 323 abuts against the opening of the corner block housing 31, and the locking strip 322 abuts against the opening of the corner block housing 31 and engages with the inner wall of the corner block housing 31, thereby assembling the corner block cover 32 and the corner block housing 31. A positioning groove 324 is provided at the bottom of the locking groove 323, and a positioning strip 313 that mates with the positioning groove 324 is provided at the opening of the corner block housing 31. The positioning strip 313 is engaged in the positioning groove 324 to reduce deformation of the corner block housing 31 and the corner block cover 32. The corner piece cover 32 is equipped with an assembly rod 325 with a locking mechanism. The corner piece housing 31 contains an assembly cylinder 314 that matches the assembly rod 325. The assembly rod 325 is locked into the assembly cylinder 314 to prevent it from dislodging, thus preventing the corner piece cover 32 from detaching from the corner piece housing 31. A corner piece locking foot 33 is detachably connected to the bottom of the corner piece housing 31. The corner piece locking foot 33 is slidably connected to the locking foot assembly 43 of the edge piece body 4 to facilitate rotation of the Rubik's Cube. Both the corner piece housing 31 and the corner piece locking foot 33 have oil grooves on their surfaces. These oil grooves are pyramid-shaped and concave to allow oil to be stored within them.

[0048] The corner block housing 31 contains three magnetic components and a linkage mechanism 6 for simultaneously adjusting the three magnetic components. The linkage mechanism 6 includes a fixed bushing 61, a linkage gear 62, three drive gears 63, three adjusting covers 64, and three adjusting cylinders 65. The magnetic components are installed inside the adjusting cylinders 65. The bottom of the fixed bushing 61 is inserted into the corner block retainer 33 to prevent the corner block retainer 33 from disengaging from the corner block housing 31. The three corner block housing covers 32 form a cylinder, and the top of the fixed bushing 61 extends into the cylinder formed by the three corner block housing covers 32, making the fixed bushing 61 more secure within the corner block body 3. Both the linkage gear 62 and the drive gear 63 are mounted on the fixed bushing 61. The linkage gear 62 and the drive gear 63 mesh, causing the three drive gears 63 and the linkage gear 62 to move in tandem. The adjusting cover 64 is sleeved on the drive gear 63. The outer wall of the drive gear 63 is provided with a locking block 632. The adjusting cover 64 is provided with a locking groove 641 that matches the locking block 632. The locking block 632 is inserted into the locking groove 641, realizing the linkage between the adjusting cover 64 and the drive gear 63. The drive gear 63 is provided with two threaded grooves 631. The outer wall of the adjusting cylinder 65 is provided with an adjusting rod 651 that matches the threaded grooves 631. The adjusting cylinder 65 extends into the drive gear 63, so that the adjusting rod 651 is engaged in the threaded grooves 631, making the reciprocating motion of the adjusting cylinder 65 in the drive gear 63 smoother. The end of the fixed bushing 61 is provided with a limiting block 611. The cross-section of the limiting block 611 is set in a regular hexagonal shape. Of course, the cross-section of the limiting block 611 can also be set in other polygonal shapes. The opening of the adjusting cylinder 65 is set to cooperate with the limiting block 611. The adjusting cylinder 65 is sleeved on the limiting block 611 to restrict the rotation of the adjusting cylinder 65, so that the driving gear 63 can drive the adjusting cylinder 65 to reciprocate back and forth in the driving gear 63. The corner block housing 31 has an adjustment hole 311 on its side wall. An adjustment cover 64 is placed inside the adjustment hole 311. The end of the adjustment cover 64 has a drive groove 642 located inside the adjustment hole 311, so that the adjustment cover 64 can be rotated by a tool through the drive groove 642. The adjustment cover 64 rotates synchronously with the drive gear 63. On the one hand, the drive gear 63 drives the other drive gears 63 to rotate through the linkage gear 62. On the other hand, since the adjustment cylinder 65 cannot rotate, the drive gear 63 drives the adjustment cylinder 65 to reciprocate back and forth inside the drive gear 63, thereby realizing the simultaneous adjustment of the three magnetic components placed inside the adjustment cylinder 65, and thus the simultaneous adjustment of the magnetic components inside the corner block body 3. The adjustment cylinder 65 is located inside the adjustment cover 64 and inside the adjustment hole 311, so that the magnetic components inside the adjustment cylinder 65 can function more easily. The outer wall of the corner block housing 31 is provided with several sets of second scales 312 for indicating the magnitude of the magnetic force. The second scales 312 are arranged around the adjustment hole 311. The end of the adjustment cover 64 is provided with a second mark 643 facing the second scale 312, so as to adjust the magnitude of the magnetic force of the magnetic component in the corner block body 3 according to the second scale 312.

[0049] In addition, refer to Figure 13 The linkage mechanism 6 within the corner block body 3 has another configuration. Since this linkage mechanism 6 is largely the same as the one described above, the repeated parts will not be elaborated further. The difference between this linkage mechanism 6 and the one described above lies in the following: the drive gear 63 and the second scale 312. The drive gear 63 is an incomplete gear, such as a gear with only half the number of teeth. Two sets of second scales 312 are correspondingly arranged on the outer wall of the corner block housing 31, surrounding both sides of the adjustment hole 311. Because the drive gear 63 is incomplete, this linkage mechanism 6 theoretically reduces the rotation range of the drive gear 63, thereby reducing the rotation range of the adjustment cover 64 and the adjustment cylinder 65. Theoretically, the two linkage mechanisms 6 have the same effect on adjusting the magnetic component, thus the effect on adjusting the adjustment cylinder 65 is the same.

[0050] When the Rubik's Cube makes a corrective movement or pulls on the center block body 2, the center block shell 21 moves away from the center axis structure 1. The oil storage component 251 and the pressure plate 252 follow the center block shell 21 and move away from the center axis structure 1. This causes the oil storage component 251 and the pressure plate 252 to press against the buckle block 2418 that supports the top block 2412, thereby squeezing the oil storage component 251. As a result, the oil in the oil storage component 251 is squeezed out from the pressure diaphragm flap 2513 of the oil outlet pipe 2511. Oil flows between the locking feet assembly 43 and the corner locking feet 33, between the center piece housing 21 and the edge piece housing 41, and between the edge piece housing 41 and the corner piece housing 31. On the one hand, this reduces the resistance to turning the cube, thereby optimizing the experience of playing the cube. On the other hand, the oil is stored in the oil groove to maintain the lubrication between the locking feet assembly 43 and the corner locking feet 33, between the center piece housing 21 and the edge piece housing 41, and between the edge piece housing 41 and the corner piece housing 31 for a long time, thus maintaining better rotation performance of the cube over a long period of time.

[0051] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A central axis structure (1) for a Rubik's Cube, characterized in that; The central shaft structure (1) includes a mounting base (52), four connecting shafts (11) mounted on the mounting base (52) and a connecting shaft (12) mounted on the mounting base (52). The mounting base (52) is provided with a linkage structure (5). The four connecting shafts (11) and the connecting shaft (12) are all connected to the linkage structure (5) so that the four connecting shafts (11) and the connecting shaft (12) can be linked through the linkage structure (5). The linkage structure (5) includes a gear structure (51), which includes four first gears (511) and two second gears (512). The first gears (511) and the second gears (512) mesh with each other. The transmission ratio of the first gears (511) and the second gears (512) is one to one. There is a gap between the four connecting shafts (11) and one connecting shaft (12). The four first gears (511) are respectively installed at one end of the four connecting shafts (11), and each first gear (511) is non-rotatable relative to each connecting shaft (11). The two second gears (512) are non-rotatable relative to the connecting shaft (12), and the two second gears (512) installed on the connecting shaft (12) are meshed with the four first gears (511) installed on the connecting shaft (11). The axes of the four first gears (511) are located in the same plane, so that the axes of the four connecting shafts (11) are located in the same plane, and the plane containing the axes of the four first gears (511) is the same plane as the plane containing the axes of the four connecting shafts (11); the axes of the two second gears (512) are located on the same straight line, the straight line containing the axes of the two second gears (512) is on the same straight line as the axis of the connecting shaft (12), and the straight line containing the axes of the two second gears (512) is perpendicular to the plane containing the axes of the four first gears (511), so that the connecting shaft (12) is perpendicular to the plane containing the axes of the four first gears (511), so that the four first gears (511) and the two second gears (512) can mesh and move together.

2. The central axis structure (1) of a Rubik's Cube according to claim 1, characterized in that: The mounting base (52) is internally threaded with a locking member (53), and the connecting shaft (11) and / or connecting shaft (12) pass through the locking member (53). The locking member (53) abuts against the gear of the gear structure (51) to limit the range of motion of the gear structure (51) within the mounting base (52).

3. The central axis structure (1) of a Rubik's Cube according to claim 2, characterized in that: The connecting shaft (11) has a cutting groove (111) on one side for mounting the gear of the gear structure (51). The connecting shaft (11) is mounted on the gear structure (51) through the cutting groove (111). A screw (112) is threaded onto one end of the connecting shaft (11). The screw (112) extends into the connecting shaft (11) and abuts against the gear structure (51) to prevent the gear structure (51) from coming off the connecting shaft (11). A connecting groove (13) is provided at the end of the connecting shaft (11) away from the cutting groove (111). The connecting groove (13) is recessed along the circumference of the connecting shaft (11). A mounting block (14) is provided on the side of the connecting shaft (11). The mounting block (14) is located between the connecting groove (13) and the cutting groove (111).

4. The central axis structure (1) of a Rubik's Cube according to claim 1, characterized in that: The connecting shaft (12) has connecting grooves (13) at both ends, which are recessed along the circumferential side of the connecting shaft (12). The connecting shaft (12) has mounting blocks (14) on its side, which are located between the two connecting grooves (13). The connecting shaft (12) has mounting pieces (121) for mounting the gear structure (51), which are located between the two connecting grooves (13) and abut against the gear structure (51). The connecting shaft (12) has mounting strips (122) for mounting the gear structure (51), which are located between the mounting pieces (121) and the mounting blocks (14). The mounting strips (122) are engaged in the gear structure (51) to achieve synchronous movement between the connecting shaft (12) and the gear structure (51).

5. The central axis structure (1) of a Rubik's Cube according to claim 4, characterized in that: The gear structure (51) has a mounting groove (514) that mates with the mounting block (14) and the mounting strip (122). The gear passes through the mounting block (14) and / or the mounting strip (122) through the mounting groove (514) to facilitate the assembly of the central shaft structure (1). The gear is linked with the mounting strip (122) through the mounting groove (514) to realize the synchronous movement of the connecting shaft (12) and the gear.

Images