CN218652942U

CN218652942U - Center block of magic cube and magic cube

Info

Publication number: CN218652942U
Application number: CN202120589986.6U
Authority: CN
Inventors: 谢悦真
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2023-03-21
Anticipated expiration: 2031-03-23

Abstract

The utility model relates to a center block of magic cube and use magic cube of this center block, including center block casing with be used for the lid to close the center block cap of center block casing, the center block cap is circular shape, the bottom that center block casing kept away from the center block cap is square shape, the open end cooperation center block cap of center block casing is circular shape, center block cap lid closes the center block casing to reduce the friction of center block and other magic cube, thereby reduce the resistance that rotates the magic cube. The central block shell cover is circular, the opening of the central block shell is matched with the central block shell cover to be circular, when the central block shell cover covers the central block shell and the magic cube is assembled, the magic cube is rotated, the central block shell cover is in point or line contact with the edge blocks, and the central block shell cover is in close contact with the edge blocks once after being rotated, so that the friction between the central block shell cover and the edge blocks is reduced; the opening of the center block shell is matched with the center block shell cover, so that the contact surface between the center block shell and the edge block is reduced, and the friction between the center block shell and the edge block when the magic cube is rotated is reduced.

Description

Center block of magic cube and magic cube thereof

Technical Field

The utility model belongs to the technical field of the technique of magic cube and specifically relates to a center block of magic cube and magic cube thereof is related to.

Background

A magic cube, also known as a Rubik cube, is exemplified by a common three-order cube. The magic cube is a 6-face cube made of hard plastic rich in elasticity. The core is a shaft and consists of 26 squares. The 26 squares included 6 inner center blocks, with only one side colored. The corner block has 8 rotatable. The prism blocks 12 can also rotate. The blocks are arranged so that each face of the cube has the same color when the toy is sold. When one face of the big cube is translated and rotated, the single color of the adjacent faces is destroyed to form a new pattern cube, and then the new pattern cube is rotated and changed to form a new pattern cube, wherein each face is formed by splicing squares with different colors. The playing method is to restore the disordered cube to six faces in a single color as soon as possible by rotating.

In order to attract more people to play the magic cube, a game aiming at the magic cube is initiated; in order to adapt to the competition, the racing magic cube is designed, and the existing magic cube which can be used for the competition is disclosed in the following patents:

the Chinese patent with publication number CN110038293A discloses a magic cube with adjustable rotation performance, which comprises a center block, a color block covering the center block, a prism main body in contact with the center block and a prism block covering the prism main body, wherein the color block is arranged in a polygon shape, and when the magic cube is rotated, the color block is in friction type contact with the prism main body or the prism block at least twice, so that the resistance when the magic cube is rotated is increased, the magic cube is not beneficial to rotation, and the experience of playing the magic cube is reduced.

The Chinese utility model with publication number CN210384805U discloses a magic cube floating amplitude and elastic restoring force adjusting structure, which comprises a center block and a color block covering the center block, wherein when the center block is assembled into the magic cube, the center block is abutted against a ridge block; because the color lump is the polygon setting, when rotating the magic cube, the color lump is at least twice with the frictional contact of arris piece to resistance when increasing the rotation magic cube is unfavorable for rotating the magic cube, thereby reduces the experience of playing the magic cube.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a center piece of magic cube and magic cube thereof, it has the advantage that reduces center piece and arris piece contact when rotating the magic cube to the experience of magic cube is played in the optimization.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a center block of a magic cube comprises a center block shell and a center block shell cover used for covering the center block shell, wherein the center block shell cover is circular, the bottom, far away from the center block shell cover, of the center block shell is square, the open end of the center block shell is matched with the center block shell cover to be circular, and the center block shell cover covers the center block shell to reduce friction between the center block and other magic cubes and reduce resistance of rotating the magic cube.

The utility model discloses further set up to: an oil storage module is arranged between the central block shell and the central block shell cover, and an oil outlet hole matched with the oil storage module is formed in the bottom of the central block shell, so that oil in the oil storage module can flow out of the central block through the oil outlet hole.

The utility model discloses further set up to: the oil storage module comprises an oil storage piece and a pressing piece used for balancing and extruding the oil storage piece, and the pressing piece is attached to the oil storage piece.

The utility model discloses further set up to: the oil storage piece is provided with an oil outlet pipe, the oil outlet pipe extends into the oil outlet hole, so that oil in the oil storage piece flows out of the oil outlet pipe.

The utility model discloses further set up to: the oil storage part is provided with an oil inlet pipe, and the oil inlet pipe penetrates through the pressing sheet so as to add oil into the oil storage part through the oil inlet pipe.

The utility model discloses further set up to: the tail ends of the oil outlet pipe and the oil inlet pipe are provided with pressure diaphragms with openings, oil penetrates through the oil outlet pipe and the oil inlet pipe by extruding the pressure diaphragms, and the oil flows into the oil storage part through the oil inlet pipe or flows out of the oil storage part through the oil outlet pipe.

The utility model discloses further set up to: the center block shell is internally provided with an elastic mechanism for extruding the oil storage module and a clamping structure for connecting the center shaft structure, the clamping structure is positioned between the elastic mechanism and the center block shell cover, and the oil storage module is positioned between the elastic mechanism and the bottom of the center block shell.

The utility model discloses further set up to: the inner wall of the center block shell is provided with a plurality of fixing strips, the fixing strips are close to the opening of the center block shell, the center block shell cover is provided with fixing grooves matched with the fixing strips, and the center block shell cover covers the center block shell to clamp the fixing strips into the fixing grooves so as to limit the center block shell cover to be separated from the center block shell.

The utility model discloses further set up to: and a sealing ring is arranged between the central block shell and the central block shell cover.

Another purpose of the utility model is that:

a magic cube comprises a central shaft structure, a central block body, a prism block body and an angle block body, wherein the central shaft structure is connected with the central block body, the prism block body and the angle block body are clamped between the central block body and the central shaft structure, the prism block body and the angle block body are in sliding clamping connection, the central block body comprises a central block shell and a central block shell cover covering the central block shell in the technical scheme, the central block shell cover is in a circular shape, a gap exists between the central block shell cover and the prism block body, and when the magic cube does fault-tolerant motion, the central block shell cover and the prism block body are in point or line contact so as to reduce friction between the central block shell cover and the prism block body; the open end of the center block shell is matched with the center block shell cover to form a circular shape so as to reduce the contact between the center block shell and the edge block body, reduce the contact between the center block body and the edge block body, reduce the friction between the center block body and the edge block body and reduce the resistance of the magic cube for fault-tolerant movement.

To sum up, the utility model discloses a beneficial technological effect does:

the utility model has the advantages of scientific and reasonable design and simple structure, compared with the prior art, the center block shell cover is in a circular shape, the opening of the center block shell body is matched with the center block shell cover to be in a circular shape, when the center block shell cover covers the center block shell body and is assembled into the magic cube, the magic cube is rotated, the center block shell cover is in point or line contact with the edge blocks, and the magic cube is rotated once and is in close contact once, so that the friction between the center block shell cover and the edge blocks is reduced; the opening of the central block shell is matched with the central block shell cover, so that the contact surface between the central block shell and the edge block is reduced, and the friction between the central block shell and the edge block when the magic cube is rotated is reduced; in conclusion, the friction between the center block and the edge block is reduced, so that the resistance in the process of rotating the magic cube is reduced, the magic cube is easier to rotate, and the experience of playing the magic cube is optimized.

Drawings

Fig. 1 is an exploded view of the present invention; FIG. 2 is a schematic diagram of a central shaft configuration; FIG. 3 is an exploded view of the central shaft configuration; FIG. 4 is an exploded view of the central shaft configuration; FIG. 5 is an exploded view of a central shaft configuration; FIG. 6 is an exploded view of a central shaft configuration; FIG. 7 is an exploded view of the center block; FIG. 8 is an exploded view of the center block; FIG. 9 is an exploded view of a prism block; FIG. 10 is an exploded view of a prism block; FIG. 11 is an exploded view of a corner block; FIG. 12 is an exploded view of a corner block; FIG. 13 is an exploded view of a corner block;

in the figure, 1, a central shaft structure; 11. a connecting shaft; 111. cutting a groove; 112. a screw; 12. a connecting shaft; 121. mounting a sheet; 122. mounting a bar; 13. connecting grooves; 14. mounting blocks;

2. a center block body; 21. a center block housing; 211. an oil outlet hole; 212. an oil leak hole; 213. opening the groove; 214. a fixing strip; 22. a center block shell cover; 221. a fixing groove; 222. a sealing groove; 23. a clamping structure; 231. a wrapping cover; 2311. wrapping the hole; 2312. a limiting groove; 2313. a regulating block; 2314. a first identifier; 232. a card sleeve; 2321. a limiting ring; 2322. an elastic groove; 2323. a bevel; 24. an elastic mechanism; 241. a load bearing structure; 2411. a bearing bottom block; 2412. carrying a top block; 2413. a bearing hole; 2414. a step portion; 2415. a first scale; 2416. an oil storage chamber; 2417. buckling holes; 2418. buckling blocks; 242. a compression spring; 243. an oiling structure; 2431. an oil filling pipe; 2432. an oil filling hole; 25. an oil storage module; 251. an oil storage member; 2511. an oil outlet pipe; 2512. an oil inlet pipe; 2513. a pressure flap; 252. tabletting; 26. a seal ring;

3. a corner block body; 31. a corner block housing; 311. an adjustment hole; 312. a second scale; 313. a positioning bar; 314. an assembly cartridge; 32. a corner block housing cover; 321. assembling the noodles; 3211. an assembly groove; 3212. assembling the strips; 322. clamping the strip; 323. clamping grooves; 324. positioning a groove; 325. assembling a rod; 33. corner block clamping feet;

4. a prism block body; 41. a prism block housing; 411. assembling a groove; 412. a fixed cylinder; 413. debugging the hole; 414. a third scale; 415. clamping and fixing the strip; 416. assembling the cylinders; 417. a clamping cylinder; 418. assembling the cartridge; 42. a prism block shell cover; 421. a clamping strip; 422. a clamping groove; 423. a clamping groove; 424. assembling the rods; 43. a clip assembly; 431. a large clamping pin; 432. a small clamping pin; 433. buckling a shaft; 434. a torsion spring; 44. assembling the components; 441. assembling the grooves; 442. assembling the strips;

5. a linkage structure; 51. a gear structure; 511. a first gear; 512. a second gear; 513. a third gear; 514. mounting grooves; 52. a mounting base; 53. a locking member;

6. a linkage mechanism; 61. fixing the shaft sleeve; 611. a limiting block; 62. a linkage gear; 63. a drive gear; 631. a thread groove; 632. a clamping block; 64. an adjustment cover; 641. a card slot; 642. a drive slot; 643. a second identifier; 65. an adjusting cylinder; 651. adjusting a rod;

7. a linkage device; 71. mounting the cylinder; 711. a limiting hole; 712. a helical groove; 713. a clamping block; 72. debugging the cover; 721. a clamping groove; 722. a groove; 723. debugging the tank; 724. a third identifier; 73. debugging the cylinder; 731. a debugging rod; 74. a stopper; 741. a limiting hoop; 742. splicing rods; 75. a limiting cover; 751. splicing grooves; 752. a flange; 753. a fixing rod; 76. a cushion hoop; 761. a bump; 77. a limiting shaft; 8. a magnetic member.

Detailed Description

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

Referring to fig. 1, the magic cube disclosed by the invention comprises a central shaft structure 1, six central block bodies 2, eight corner block bodies 3 and twelve edge block bodies 4; the central shaft structure 1 is positioned in the center of the magic cube, the tail end of the central shaft structure 1 is connected with the central block body 2, the corner block body 3 and the edge block body 4 are clamped between the central shaft structure 1 and the central block body 2, the side wall of the edge block body 4 is contacted with the side wall of the central block body 2, the corner block body 3 and the edge block body 4 can be spliced in a sliding mode, and the corner block body 3 is contacted with the side walls on the two sides of the edge block body 4, so that the magic cube is formed; be equipped with magnetic force module between arris piece body 4 and the hornblock body 3, magnetic force module is including corresponding the magnetic part 8 that sets up in arris piece body 4 and hornblock body 3, and when rotating the magic cube, magnetic force module orders about arris piece body 4 and the quick alignment location of hornblock body 3 to optimize the experience of playing the magic cube.

Referring to fig. 2 to 6, the central shaft structure 1 has various arrangement modes, and the first arrangement mode of the central shaft structure 1 is as follows: referring to fig. 2 to 4, the central shaft structure 1 includes six connecting shafts 11 arranged in a three-dimensional shape and a mounting seat 52, the connecting shafts 11 are mounted on the mounting seat 52, gaps exist between the six connecting shafts 11 so that the connecting shafts 11 can rotate, linkage structures 5 are arranged between the six connecting shafts 11, and the linkage structures 5 are mounted in the mounting seat 52 so that the six connecting shafts 11 can be linked through the linkage structures 5. The linkage structure 5 comprises gear structures 51, and the gear structures 51 are respectively connected with the six connecting shafts 11; six locking pieces 53 are arranged in the mounting seat 52, the locking pieces 53 are in threaded connection with the mounting seat 52, and the locking pieces 53 are abutted to the gear structure 51 so as to limit the gear structure 51 to be separated from the mounting seat 52 and limit the moving range of the gear structure 51 in the mounting seat 52; the gear structure 51 comprises four first gears 511 and two second gears 512, the first gears 511 and the second gears 512 are meshed, and the transmission ratio of the first gears 511 and the second gears 512 is one to one; both sides of one end of the connecting shaft 11 are provided with cutting grooves 111, the protruding end of the connecting shaft 11 which can rotatably pass through the locking piece 53 is respectively connected with the first gear 511 and the second gear 512 through the cutting grooves 111, so that the first gear 511 and the second gear 512 are installed on the connecting shaft 11; a screw 112 is screwed into one end of the connecting shaft 11, and the screw 112 is screwed into the connecting shaft 11 and abuts against the first gear 511 and the second gear 512, respectively, to restrict the first gear 511 and the second gear 512 from coming out of the connecting shaft 11. One end of the connecting shaft 11, which is far away from the cutting groove 111, is provided with a connecting groove 13, and the connecting groove 13 is concavely formed along the circumference of the connecting shaft 11, so that the connecting shaft 11 is connected with the center block body 2 through the connecting groove 13. Two groups of mounting blocks 14 are arranged on the side surfaces of two sides of the connecting shaft 11, the mounting blocks 14 are positioned between the connecting grooves 13 and the cutting grooves 111, and when the central shaft structure 1 is assembled by six connecting shafts 11, the mounting blocks 14 are positioned between the connecting grooves 13 and the center of the central shaft structure 1; the group of mounting blocks 14 consists of two mounting blocks 14 arranged on two side surfaces of the connecting shaft 11, and the mounting blocks 14 are parallel to the length direction of the connecting shaft 11. The first gear 511 and the second gear 512 are a straight gear and a steering gear, respectively, and the first gear 511 and the second gear 512 may be bevel gears with different specifications. The axes of the four first gears 511 are located in the same plane, the axes of the two second gears 512 are located on the same straight line, and the straight line where the axes of the two second gears 512 are located is perpendicular to the plane where the axes of the four first gears 511 are located, so that the four first gears 511 and the two second gears 512 are meshed and linked with each other. The connecting shaft 11 is rotated, and the connecting shaft 11 drives the other connecting shaft 11 to rotate through the gear structure 51.

Referring to fig. 6, the second arrangement of the central shaft structure 1 is as follows: the central shaft structure 1 comprises four connecting shafts 11, connecting shafts 12 and a mounting seat 52, the connecting shafts 11 and the connecting shafts 12 are mounted on the mounting seat 52, gaps exist between the four connecting shafts 11 and the connecting shafts 12, gaps exist between the four connecting shafts 11, so that the connecting shafts 11 and the connecting shafts 12 can rotate conveniently, linkage structures 5 are arranged between the four connecting shafts 11 and the connecting shafts 12, and the linkage structures 5 are mounted in the mounting seat 52, so that the connecting shafts 11 and the connecting shafts 12 can be linked through the linkage structures 5. The linkage structure 5 comprises a gear structure 51, the gear structure 51 is arranged in the mounting seat 52, and the gear structure 51 is respectively connected with the four connecting shafts 11 and the connecting shaft 12; six locking pieces 53 are arranged in the mounting seat 52, the locking pieces 53 are in threaded connection with the mounting seat 52, and the locking pieces 53 are abutted to the gear structure 51 so as to limit the gear structure 51 to be separated from the mounting seat 52 and limit the moving range of the gear structure 51 in the mounting seat 52; the gear structure 51 includes four first gears 511 and two second gears 512, the first gears 511 and the second gears 512 are engaged, and the transmission ratio of the first gears 511 and the second gears 512 is one to one. Both sides of one end of the connecting shaft 11 are provided with cutting grooves 111, the connecting shaft 11 can rotatably pass through the protruding end of the locking piece 53 to be connected with the first gear 511 through the cutting grooves 111, and the first gear 511 is installed on the connecting shaft 11; a screw 112 is connected to an end of one end of the connecting shaft 11 in a threaded manner, and the screws 112 are screwed into the connecting shaft 11 and are respectively abutted against the first gear 511 so as to limit the first gear 511 from being disengaged from the connecting shaft 11; one end of the connecting shaft 11, which is far away from the cutting groove 111, is provided with a connecting groove 13, and the connecting groove 13 is formed along the circumference of the connecting shaft 11 in a concave manner so that the connecting shaft 11 is connected with the central block body 2 through the connecting groove 13; the two side surfaces of the connecting shaft 11 are provided with mounting blocks 14, and the mounting blocks 14 are positioned between the connecting grooves 13 and the cutting grooves 111. Two ends of the connecting shaft 12 are provided with connecting grooves 13, and the connecting grooves 13 are formed along the circumference of the connecting shaft 12 in a concave manner so that the connecting shaft 12 is connected with the central block body 2 through the connecting grooves 13; two side surfaces of the connecting shaft 12 are provided with two groups of mounting blocks 14, the two groups of mounting blocks 14 are positioned between the two connecting grooves 13, one group of mounting blocks 14 consists of two mounting blocks 14 arranged on two side surfaces of the connecting shaft 12, when the central shaft structure 1 is assembled by the four connecting shafts 11 and the connecting shaft 12, the mounting blocks 14 are positioned between the connecting grooves 13 and the center of the central shaft structure 1, and the mounting blocks 14 are parallel to the connecting shaft 12. The circumference of the connecting shaft 12 is provided with a mounting piece 121 for mounting the second gear 512, the mounting piece 121 is positioned between the two sets of mounting blocks 14, the mounting piece 121 is circular, the mounting piece 121 is abutted against the second gear 512, and the second gear 512 is mounted on 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, the mounting strip 122 is parallel to the connecting shaft 12, when the mounting strip 122 is clamped in the second gear 512, the second gear 512 is mounted on the connecting shaft 12, and the mounting strip 122 limits the second gear 512 to rotate relative to the connecting shaft 12. The first gear 511, the second gear 512 and/or the locking member 53 are provided with mounting grooves 514 which are matched with the mounting bar 122 and/or the mounting block 14, and the first gear 511, the second gear 512 and/or the locking member 53 penetrate through the mounting bar 122 and/or the mounting block 14 through the mounting grooves 514 so as to facilitate the assembly of the central shaft structure 1. The first gear 511 and the second gear 512 are bevel gears with different specifications, and 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 where the axes of the four first gears 511 are located and the plane where the axes of the four connecting shafts 11 are located are the same plane; the axes of the two second gears 512 are located on the same straight line, the straight line where the axes of the two second gears 512 are located is on the same straight line with the axis of the connecting shaft 12, and the straight line where the axes of the two second gears 512 are located is perpendicular to the plane where the axes of the four first gears 511 are located, so that the connecting shaft 12 is perpendicular to the plane where the axes of the four first gears 511 are located, and the four first gears 511 and the two second gears 512 are meshed and linked with each other. The connecting shaft 12 is rotated, and the connecting shaft 12 drives the four connecting shafts 11 to rotate through a gear structure 51; the connecting shaft 11 is rotated, and the connecting shaft 11 drives the connecting shaft 12 and the other connecting shaft 11 to rotate through the gear structure 51.

Referring to fig. 5, the third arrangement of the central shaft structure 1 is: the third arrangement of the central shaft arrangement 1 differs from the second arrangement of the central shaft arrangement 1 by the gear arrangement 51. The gear structure 51 comprises four first gears 511, second gears 512 and third gears 513, the gear structure 51 may also comprise only four first gears 511 and second gears 512, the first gears 511 and the second gears 512 are meshed, the transmission ratio of the first gears 511 and the second gears 512 is one to one, and the third gears 513 are toothless gears. The structure and/or manner of mounting the first gear 511 on the connecting shaft 11 is the same as the method of the second arrangement manner of the central shaft structure 1, and will not be described here; the third gear 513 sequentially penetrates through the mounting block 14 and the mounting bar 122 to abut against the mounting piece 121, so that the third gear 513 is mounted on the connecting shaft 12, and the third gear 513 can rotate relative to the connecting shaft 12; the second gear 512 passes through the mounting block 14 and is sleeved on the mounting bar 122, so that the second gear 512 is mounted on the connecting shaft 12, and the mounting bar 122 restricts the second gear 512 from rotating relative to the connecting shaft 12. First gear 511, second gear 512, third gear 513 and/or locking member 53 are provided with mounting slots 514 matching with mounting bar 122 and/or mounting block 14, and first gear 511, second gear 512, third gear 513 and/or locking member 53 penetrate mounting bar 122 and/or mounting block 14 through mounting slots 514 so as to facilitate assembly of central shaft structure 1. The first gear 511 and the second gear 512 are a straight gear and a steering gear respectively, axes of the four first gears 511 are located in the same plane, so that axes of the four connecting shafts 11 are located in the same plane, and a plane where the axes of the four first gears 511 are located and a plane where the axes of the four connecting shafts 11 are located are the same plane; the axes of the second gear 512 and the third gear 513 are located on the same straight line, the straight line where the axes of the second gear 512 and the third gear 513 are located is on the same straight line with the axis of the connecting shaft 12, and the straight line where the axes of the second gear 512 and the third gear 513 are located is perpendicular to the plane where the axes of the four first gears 511 are located, so that the connecting shaft 12 is perpendicular to the plane where the axes of the four first gears 511 are located, and the four first gears 511 and the second gear 512 are in meshing linkage.

Referring to fig. 7 and 8, the center block body 2 includes a center block housing 21 and a center block housing cover 22 covering the center block housing 21, an oil storage module 25, an elastic mechanism 24 and a clamping structure 23 are sequentially disposed between the center block housing 21 and the center block housing cover 22, and the connecting shaft 11 and the connecting shaft 12 sequentially penetrate through protruding ends of the center block housing 21, the oil storage module 25 and the elastic mechanism 24 and are in linkage connection with the clamping structure 23, so that the center block body 2 is connected with the center shaft structure 1. The central block shell cover 22 is arranged in a circular shape, and when the magic cube is not rotated, a gap exists between the central block shell cover 22 and the edge block body 4; when the magic cube is rotated and does fault-tolerant motion, the center block shell cover 22 is in point or line contact with the edge block body 4, so that friction between the center block shell cover 22 and the edge block body 4 is reduced, resistance of the magic cube to fault-tolerant motion is reduced, and the magic cube can do fault-tolerant motion conveniently. The bottom of keeping away from center block cap 22 of center block casing 21 is square shape, and the open end cooperation center block cap 22 of center block casing 21 is circular shape setting, has reduced the contact between center block casing 21 and the arris piece body 4, when rotating the magic cube to reduce the friction between center block casing 21 and the arris piece body 4, and then reduced the resistance that the fault-tolerant motion was done to the magic cube, so that the fault-tolerant motion was done to the magic cube. The open end of the center block housing 21 is provided with an opening groove 213, and the opening groove 213 is used to open the center block cover 22 from the center block housing 21, so as to facilitate the detachment of the center block cover 22 from the center block housing 21. The inner wall of the center block shell 21 is provided with four fixing strips 214, the fixing strips 214 are convex towards the center of the center block shell 21, the four fixing strips 214 are uniformly distributed on the inner wall of the center block shell 21, the fixing strips 214 are close to the opening of the center block shell 21, the center block shell cover 22 is provided with fixing grooves 221 matched with the fixing strips 214, the center block shell cover 22 covers the center block shell 21 to enable the fixing strips 214 to be clamped into the fixing grooves 221, and therefore the center block shell cover 22 is limited to be disengaged from the center block shell 21. A seal ring 26 is arranged between the center block shell 21 and the center block shell cover 22 to limit the oil in the oil storage module 25 from seeping out from between the center block shell 21 and the center block shell cover 22; the center block cover 22 is provided with a seal groove 222, the seal groove 222 is positioned between the fixing groove 221 and the bottom of the center block cover 22, the seal ring 26 is clamped in the seal groove 222, and the seal ring 26 is abutted against the inner wall of the center block housing 21, so that the center block housing 21 and the center block cover 22 are in a sealed state.

The clamping structure 23 comprises a wrapping cover 231 and a clamping sleeve 232 clamped in the wrapping cover 231, the clamping sleeve 232 is elastic, the clamping sleeve 232 is preferably made of elastic plastic such as PC plastic, the cross section of the clamping sleeve 232 is arranged in a circular shape, the connecting shaft 11 and the connecting shaft 12 penetrate through the protruding end of the wrapping cover 231 and are clamped with the clamping sleeve 232, and the connection of the central block body 2 and the central shaft structure 1 is achieved. The inner wall of the cutting sleeve 232 is provided with a limiting ring 2321, the limiting ring 2321 protrudes towards the axis direction of the cutting sleeve 232, and the limiting ring 2321 is connected with the connecting groove 13 of the connecting shaft 11 or the connecting shaft 12 in a buckling manner, so that the cutting sleeve 232 is clamped and fixed with the central shaft structure 1; an elastic groove 2322 is formed in the side wall of the clamping sleeve 232, the elastic groove 2322 penetrates through the limiting ring 2321 and extends to the end of one end of the clamping sleeve 232, and when the clamping sleeve 232 is in snap-fit connection with the connecting shaft 11 and the connecting groove 13 of the connecting shaft 12, the elastic groove 2322 enables the clamping sleeve 232 to deform so that the clamping sleeve 232 and the connecting groove 13 can be clamped and fixed conveniently; parcel cover 231 has seted up parcel hole 2311, and parcel hole 2311 is the shoulder hole, and cutting ferrule 232 is arranged in parcel hole 2311 for joint structure 23 is compacter. The outer wall of cutting ferrule 232 is equipped with to the concave inclined plane 2323 of cutting ferrule 232 axle center direction, and inclined plane 2323 extends to the tip of cutting ferrule 232 one end, and inclined plane 2323 is located between the tank bottom of elasticity groove 2322 and the tip of cutting ferrule 232, and cutting ferrule 232 passes through inclined plane 2323 and the pore wall butt of parcel hole 2311 to cutting ferrule 232 is at parcel hole 2311 internal rotation, and then is convenient for adjust the wheel base of center piece body 2. The inner wall of the wrapping hole 2311 is provided with a limiting groove 2312 matched with the mounting block 14, the connecting shaft 11 and the connecting shaft 12 penetrate through the wrapping hole 2311 to enable the mounting block 14 to be clamped into the limiting groove 2312, and therefore the wrapping cover 231 is linked with the connecting shaft 11 and/or the connecting shaft 12 respectively, and linkage of the wrapping cover 231 and the central shaft structure 1 is achieved due to linkage of the connecting shaft 11 and the connecting shaft 12.

The elastic mechanism 24 includes a bearing structure 241 and a compression spring 242 sleeved on the bearing structure 241, and both ends of the compression spring 242 are abutted against the bearing structure 241; the bearing structure 241 comprises a bearing bottom block 2411 and a bearing top block 2412 in buckled connection with the bearing bottom block 2411, the bearing bottom block 2411 is provided with a buckling hole 2417, the bearing top block 2412 is provided with a buckling block 2418 matched with the buckling hole 2417, and the buckling block 2418 can be movably buckled with the buckling hole 2417, so that on one hand, the bearing top block 2412 is in buckled connection with the bearing bottom block 2411, and on the other hand, when the bearing top block 2412 moves towards the bottom of the central block shell 21, the buckling block 2418 and the bearing top block 2412 synchronously move towards the bottom of the central block shell 21, so that the buckling block 2418 can extrude the oil storage module 25, and therefore the oil in the oil storage module 25 is extruded, and as the compression spring 242 is arranged between the bearing top block 2412 and the bearing bottom block 2411, the buckling block 2418 can easily recover to the original state after extruding the oil storage module 25; the bearing bottom block 2411 is provided with a hole for the connection shaft 11 or the connection shaft 12 to penetrate through, the bearing top block 2412 is also provided with a bearing hole 2413 for the connection shaft 11 or the connection shaft 12 to penetrate through, the bearing hole 2413 is a stepped hole, and the wrapping cover 231 is clamped in the bearing hole 2413, so that the interior of the center block body 2 is more compact. The bearing holes 2413 are internally provided with a plurality of step portions 2414, the height difference exists between two adjacent steps of the step portions 2414, the height difference is preferably 0.09mm, the step portions 2414 are distributed circularly, the wrapping cover 231 is provided with adjusting blocks 2313 matched with the step portions 2414, the adjusting blocks 2313 are four, the four adjusting blocks 2313 are uniformly distributed on the outer wall of the wrapping cover 231, the adjusting blocks 2313 are abutted to the step portions 2414, the wrapping cover 231 is rotated, the adjusting blocks 2313 reciprocate on the step portions 2414, and therefore the shaft distance of the center block body 2 is adjusted. The surface of the bearing top block 2412, which is far away from the bearing bottom block 2411, is provided with a plurality of first scales 2415 matched with the step portions 2414, the plurality of first scales 2415 are wound on the bearing holes 2413, and the wrapping cover 231 is provided with a first mark 2314 facing the first scales 2415, so that the axle distance of the center block body 2 can be adjusted according to the fact that the first mark 2314 points to the first scales 2415, and therefore the axle distance of the magic cube can be adjusted. The wrapping cover 231 is driven to rotate by a tool, on one hand, the wrapping cover 231 reciprocates back and forth on the stepped part 2414 of the bearing top block 2412 to realize the adjustment of the compression state of the elastic mechanism 24, so that the axle distance of the central block body 2 is adjusted, and further the axle distance of the magic cube central block body 2 is adjusted; on the other hand, the wrapping cover 231 rotates synchronously with the connecting shaft 12 or the connecting shaft 11, the connecting shaft 12 or the connecting shaft 11 drives the other connecting shaft 11 and/or the connecting shaft 12 to rotate through the gear structure 51, the other connecting shaft 12 or the connecting shaft 11 rotates synchronously with the other wrapping cover 231, and the other wrapping cover 231 reciprocates back and forth on the step 2414 of the other bearing top block 2412 to realize simultaneous adjustment of the compression state of the other elastic mechanism 24, so as to simultaneously adjust the wheelbase of the other center block body 2, and further realize simultaneous adjustment of the wheelbases of the six center block bodies 2 of the magic cube.

The surface of the bearing bottom block 2411 facing away from the bearing top block 2412 is provided with an oil storage cavity 2416, the opening of the oil storage cavity 2416 faces the bottom of the central block shell 21, and the oil storage module 25 is arranged in the oil storage cavity 2416. The oil storage module 25 comprises an oil storage member 251 and a pressing plate 252 positioned between the oil storage member 251 and the bottom of the oil storage cavity 2416, and the pressing plate 252 is attached to the oil storage member 251. The oil storage member 251 is a hollow elastic bladder so that the oil storage member 251 can store oil, and the oil storage member 251 is made of soft material, such as silica gel, so that the oil storage member 251 is easily restored after being extruded and deformed. A plurality of oil outlet holes 211 are formed in the bottom of the center block housing 21, and the plurality of oil outlet holes 211 are circularly distributed so that oil in the oil storage module 25 can flow out from the oil outlet holes 211. The surface of the oil storage member 251 facing the oil outlet hole 211 is provided with an oil outlet pipe 2511, and the matching mode of the oil outlet pipe 2511 and the oil outlet hole 211 is various, 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 arranged in the oil outlet hole 211, the opening of the oil outlet pipe 2511 is flush with the opening of the oil outlet hole 211, and the opening of the oil outlet pipe 2511 penetrates through the protruding end of the oil outlet hole 211 and extends out of the center block shell 21 so as to discharge oil in the oil storage piece 251 out of the center block body 2. A refueling structure 243 for refueling the oil storage component 251 is arranged between the bearing bottom block 2411 and the bearing top block 2412, the refueling structure 243 comprises a refueling pipe 2431 arranged on the bearing bottom block 2411 and a refueling hole 2432 arranged on the bearing top block 2412, the refueling pipe 2431 penetrates through the bearing bottom block 2411, the refueling pipe 2431 extends into the refueling hole 2432, and the refueling pipe 2431 can be flush with the surface of the refueling hole 2432 so as to facilitate refueling of the oil storage component 251; the fueling hole 2432 is a part of the first scale 2415, and the first mark 2314 indicates the maximum or minimum wheel base of the center block body 2 toward the fueling hole 2432. The surface of the oil reservoir 251 facing away from the oil outlet tube 2511 is provided with an oil inlet tube 2512, the oil inlet tube 2512 extends into the oil filler tube 2431 through the protruding end of the pressing plate 252, and the oil inlet tube 2512 can be flush with the surface of the opening of the oil filler tube 2431, so that the opening of the oil inlet tube 2512 is placed on the surface of the bearing top block 2412, and oil can be added into the oil reservoir 251 from the oil inlet tube 2512. The tail ends of the oil inlet pipe 2512 and the oil outlet pipe 2511 are both provided with pressure diaphragms 2513 with openings, the openings of the pressure diaphragms 2513 are arranged in a triangular star shape, and oil passes through the oil inlet pipe 2512 and the oil outlet pipe 2511 by extruding the pressure diaphragms 2513, so that the oil flows into the oil storage part 251 through the oil inlet pipe 2512 or flows out of the oil storage part 251 through the oil outlet pipe 2511. The side wall of the center block housing 21 is formed with a plurality of oil leakage holes 212, and if the oil in the oil storage member 251 overflows between the center block housing 21 and the center block cover 22, the oil between the center block housing 21 and the center block cover 22 can flow out through the oil leakage holes 212 and the oil outlet holes 211.

Referring to fig. 9 and 10, the prism body 4 includes a prism housing 41 and two prism housing covers 42 covering the prism housing 41, the two prism housing covers 42 are attached to each other, an assembling component 44 is arranged between the two prism housing covers 42, the assembling component 44 includes an assembling groove 441 arranged on the prism housing cover 42 and an assembling strip 442 arranged on the other prism housing cover 42, and the assembling strip 442 is clamped into the assembling groove 441 to realize the assembling of the two prism housing covers 42. The assembly strips 442 and the assembly grooves 441 are located on the same prism block housing cover 42, and the assembly strips 442 and the assembly grooves 441 are located on the same straight line, so that two prism block housing covers 42 are assembled. The assembling groove 441 is a dovetail groove to limit the assembling strip 442 from being separated from the assembling groove 441. A clamping strip 421 and a clamping groove 422 matched with the opening of the prism block shell 41 are arranged at the edge side of one surface of the prism block shell cover 42, the clamping strip 421 is positioned at the inner side of the clamping groove 422, the clamping strip 421 is arranged around one surface of the prism block shell cover 42 in a square shape, so that the clamping groove 422 is arranged in a U shape, and the assembling strip 442 and the assembling groove 441 are positioned at the same outer side surface of the clamping strip 421; when arris piece cap 42 lid closes arris piece casing 41, screens groove 422 and the opening part butt of arris piece casing 41, screens strip 421 with the opening part butt of arris piece casing 41 and with the inner wall joint of arris piece casing 41, realize assembling of arris piece cap 42 and arris piece casing 41. The clamping groove 423 is formed in the groove bottom of the clamping groove 422, the clamping bar 415 matched with the clamping groove 423 is arranged at the opening of the prism block shell 41, and the clamping bar 415 is clamped into the clamping groove 423 when the prism block shell cover 42 covers the prism block shell 41, so that deformation of the prism block shell 41 and the prism block shell cover 42 is limited. The one side of arris piece cap 42 is equipped with two and has the pole 424 of assembling of screens, and arris piece casing 41 is equipped with and assembles a section of thick bamboo 416 with assembling pole 424 matched with, assembles the pole 424 and inserts when arris piece cap 42 lid closes arris piece casing 41 and assemble in a section of thick bamboo 416 to restriction arris piece cap 42 drops from arris piece casing 41. The bottom of arris piece casing 41 can be dismantled and be connected with card foot subassembly 43, but card foot subassembly 43 and hornblock body 3 sliding connection to in the rotation magic cube. The clamping pin assembly 43 comprises a large clamping pin 431, a small clamping pin 432, a torsion spring 434 and a buckling shaft 433, the large clamping pin 431 is provided with two fixing cylinders 412 with clamping positions, the prism block shell 41 is provided with a clamping cylinder 417 with the clamping positions, and the fixing cylinders 412 are clamped into the clamping cylinders 417, so that the connection between the large clamping pin 431 and the prism block shell 41 is realized; the small clamping leg 432 is positioned at the bottom of the large clamping leg 431, which is far away from the prism block shell 41, an assembly cylinder 418 is arranged in the prism block shell 41, and the buckling shaft 433 penetrates through the small clamping leg 432 and the protruding end of the large clamping leg 431 in sequence to be clamped into the assembly cylinder 418, so that the clamping leg assembly 43 is connected with the prism block shell 41; the torsion spring 434 is located between the large clamping leg 431 and the small clamping leg 432, the buckling shaft 433 is sleeved with the torsion spring 434, and two ends of the torsion spring 434 are respectively connected with the large clamping leg 431 and the small clamping leg 432, so that the clamping leg assembly 43 can be twisted, and the prism block body 4 can be twisted, and the magic cube can conveniently perform fault-tolerant motion. The outer wall of the prism block shell 41 and the surface of the large clamping leg 431 are both provided with oil grooves which are formed in a pyramid shape in a concave manner so that oil reservoirs can be conveniently stored in the oil grooves.

Two magnetic parts and a linkage device 7 for adjusting the two magnetic parts simultaneously are arranged in the prism block shell 41, the linkage device 7 comprises an installation cylinder 71, two debugging covers 72, two debugging cylinders 73, a limiting part 74, a limiting shaft 77 and a limiting cover 75, and the magnetic parts are installed in the debugging cylinders 73. The debugging cover 72 is sleeved on the installation cylinder 71, so that the debugging cover 72 is sleeved with the installation cylinder 71; the tip of debugging cover 72 has been seted up joint groove 721, and the outer wall of installation section of thick bamboo 71 is equipped with the joint piece 713 with joint groove 721 matched with, and joint piece 713 blocks in the joint groove 721, realizes debugging cover 72 and the linkage of installation section of thick bamboo 71. The two debugging cylinders 73 can slidably extend into two ends of the mounting cylinder 71, two spiral grooves 712 are formed in the inner wall of the mounting cylinder 71, debugging rods 731 matched with the spiral grooves 712 are arranged on the outer wall of the debugging cylinders 73, and the debugging rods 731 are clamped in the spiral grooves 712, so that the debugging cylinders 73 can rotate in the mounting cylinder 71, and the debugging cylinders 73 can reciprocate back and forth in the mounting cylinder 71; the limiting shaft 77 is located in the installation cylinder 71, the cross section of the limiting shaft 77 is in a regular hexagon shape, certainly, the cross section of the limiting shaft 77 can also be in other polygonal shapes, the debugging cylinder 73 is sleeved on the limiting shaft 77 to limit the rotation of the debugging cylinder 73, and therefore the installation cylinder 71 drives the debugging cylinder 73 to reciprocate back and forth along the length direction of the installation cylinder 71. The middle part of the installation tube 71 is provided with a limiting hole 711, the two debugging tubes 73 are located on two sides of the limiting hole 711, a limiting part 74 is arranged in the limiting hole 711, the limiting part 74 comprises a limiting hoop 741, the inner wall of the limiting hoop 741 is matched with the limiting shaft 77, and the limiting hoop 741 is sleeved on the limiting shaft 77 to limit the rotation of the limiting shaft 77. The limiting cover 75 is located between the installation barrel 71 and the prism block housing 41, the limiting cover 75 is provided with a splicing groove 751, the limiting piece 74 further comprises a splicing rod 742, the splicing rod 742 is fixed to the outer wall of the limiting hoop 741, and the splicing rod 742 is inserted into the splicing groove 751 to fix the limiting piece 74 and fix the limiting shaft 77. The mounting cylinder 71 and the debugging cover 72 are arranged in the limiting cover 75, so that the limiting cover 75 supports the mounting cylinder 71 and the debugging cover 72, flanges 752 are arranged on two sides in the limiting cover 75, and the flanges 752 are abutted to the debugging cover 72 to limit the mounting cylinder 71 and the debugging cover 72 to be separated from the limiting cover 75. A gasket hoop 76 is arranged between the flange 752 and the debugging cover 72, and the gasket hoop 76 is sleeved on the debugging cover 72; the gasket hoop 76 is provided with a projection 761, the debugging cover 72 is provided with a groove 722 matched with the projection 761, the groove 722 and the clamping groove 721 are positioned at two ends of the debugging cover 72, and the projection 761 is clamped in the groove 722, so that the gasket hoop 76 is in linkage connection with the debugging cover 72. The inner wall of the prism block shell 41 is provided with an assembly groove 411, and the limiting cover 75 is clamped into the assembly groove 411 to fix the limiting cover 75; in addition, the clamping strip 421 of the prism housing cover 42 is clamped into the assembling groove 411, so that the assembly of the prism housing 41 and the prism housing cover 42 is more fixed; the limiting cover 75 is provided with a fixing rod 753 matched with the fixing barrel 412 and the buckling shaft 433, the fixing rod 753 is respectively inserted into the fixing barrel 412 and the buckling shaft 433, on one hand, the limiting shaft 77 is fixed, and on the other hand, the buckling shaft 433 is limited to be separated from the assembling barrel 418. The side wall of the prism block shell 41 is provided with a debugging hole 413, the debugging cover 72 is arranged in the debugging hole 413, the end part of the debugging cover 72 is provided with a debugging groove 723 for rotating the debugging cover 72, and the debugging groove 723 is positioned in the debugging hole 413, so that a tool is used for driving the debugging cover 72 to rotate through the debugging groove 723; the debugging cover 72 and the mounting cylinder 71 synchronously rotate, and the debugging cylinder 73 cannot rotate, so that the mounting cylinder 71 drives the debugging cylinder 73 to reciprocate back and forth in the mounting cylinder 71, two magnetic pieces arranged in the adjusting cylinder 65 can be simultaneously adjusted, and the magnetic pieces in the prism block body 4 can be simultaneously adjusted; the debugging cylinder 73 is not only positioned in the installation cylinder 71, but also positioned in the debugging cover 72 and the debugging hole 413, so that the magnetic part in the debugging cylinder 73 is closer to the corner block body 3, and the magnetic force of the magnetic part in the debugging cylinder 73 plays a role. The outer wall of arris piece casing 41 is equipped with third scale 414 that is used for showing the magnetic force size, and third scale 414 is around locating debugging hole 413, and the third sign 724 towards the scale is seted up to the tip of debugging cover 72 to be convenient for adjust the magnetic force size of the interior magnetic part of arris piece body 4 according to the scale.

Referring to fig. 11 and 12, the corner block body 3 includes a corner block housing 31 and three corner block housing covers 32 covering the corner block housing 31, two adjacent sides of one side of each corner block housing cover 32 are provided with assembling surfaces 321, each assembling surface 321 is provided with an assembling groove 3211, the other assembling surface 321 is provided with an assembling strip 3212 matched with the assembling groove 3211, the assembling strips 3212 of the corner block housing covers 32 are clamped into the assembling grooves 3211 of the other corner block housing cover 32, so that the assembling surfaces 321 of the corner block housing covers 32 are attached to the assembling surfaces 321 of the other corner block housing cover 32, and the two corner block housing covers 32 are assembled; the assembly slots 3211 are preferably dovetail slots to limit the assembly bars 3212 from escaping from the assembly slots 3211, making the two corner block covers 32 more secure. A clamping bar 322 and a clamping groove 323 which are matched with the opening of the corner block shell 31 are arranged at the other two adjacent sides of one side of the corner block shell cover 32, the clamping bar 322 is positioned at the inner side of the clamping groove 323, and the clamping bar 322 is connected with the assembling surface 321; when the corner block case cover 32 covers the corner block case 31, the clamping groove 323 abuts against the opening of the corner block case 31, and the clamping bar 322 abuts against the opening of the corner block case 31 and is clamped with the inner wall of the corner block case 31, so that the corner block case cover 32 and the corner block case 31 are assembled. The bottom of the clamping groove 323 is provided with a positioning groove 324, the opening of the corner block shell 31 is provided with a positioning strip 313 matched with the positioning groove 324, and the positioning strip 313 is clamped in the positioning groove 324 to reduce the deformation of the corner block shell 31 and the corner block shell cover 32. The corner block cover 32 is provided with an assembling rod 325 with a clamping position, an assembling cylinder 314 matched with the assembling rod 325 is arranged in the corner block shell 31, and the assembling rod 325 is clamped in the assembling cylinder 314 to limit the assembling rod 325 from being separated from the assembling cylinder 314, so that the corner block cover 32 is limited from being separated from the corner block shell 31. The bottom of the corner block shell 31 can be detachably connected with corner block clamping feet 33, and the corner block clamping feet 33 are connected with the clamping foot components 43 of the ridge block body 4 in a sliding mode so as to rotate the magic cube. The surfaces of the corner block shell 31 and the corner block clamping foot 33 are both provided with oil grooves which are formed in a pyramid-shaped concave manner so as to contain oil in the oil grooves.

The angle block shell 31 is internally provided with three magnetic parts and a linkage mechanism 6 for adjusting the three magnetic parts simultaneously, the linkage mechanism 6 comprises a fixed shaft sleeve 61, a linkage gear 62, three driving gears 63, three adjusting covers 64 and three adjusting cylinders 65, and the magnetic parts are arranged in the adjusting cylinders 65. The bottom of the fixed shaft sleeve 61 is inserted into the corner block clamping leg 33 to limit the corner block clamping leg 33 from being separated from the corner block shell 31; the three corner block shell covers 32 form a cylinder, and the top of the fixed shaft sleeve 61 extends into the cylinder formed by the three corner block shell covers 32, so that the fixed shaft sleeve 61 is more fixed in the corner block body 3. The linkage gear 62 and the driving gear 63 are both arranged on the fixed shaft sleeve 61, and the linkage gear 62 is meshed with the driving gear 63, so that the three driving gears 63 and the linkage gear 62 are in linkage; the drive gear 63 is located to the linkage cover 64, and the outer wall of drive gear 63 is equipped with fixture block 632, adjusts the cover 64 and is equipped with and block 632 assorted draw-in groove 641, and in the draw-in groove 641 was gone into to fixture block 632 card, the realization was adjusted the cover 64 and is linked with drive gear 63. Be equipped with two thread grooves 631 in the drive gear 63, the outer wall of adjusting a section of thick bamboo 65 is equipped with thread groove 631 assorted regulation pole 651, adjusts a section of thick bamboo 65 and stretches into and realizes adjusting the pole 651 card and arrange in thread groove 631 in drive gear 63 for adjust a section of thick bamboo 65 reciprocating motion back and forth in drive gear 63 more steadily. The end of the fixed shaft sleeve 61 is provided with a limiting block 611, the cross section of the limiting block 611 is arranged in a regular hexagon shape, of course, the cross section of the limiting block 611 can also be arranged in other polygonal shapes, the opening of the adjusting cylinder 65 is arranged in cooperation with the limiting block 611, the adjusting cylinder 65 is sleeved on the limiting block 611 to limit the rotation of the adjusting cylinder 65, so that the driving gear 63 drives the adjusting cylinder 65 to reciprocate in the driving gear 63. The side wall of the corner block shell 31 is provided with an adjusting hole 311, the adjusting cover 64 is arranged in the adjusting hole 311, the end part of the adjusting cover 64 is provided with a driving groove 642, and the driving groove 642 is positioned in the adjusting hole 311, so that the adjusting cover 64 is driven to rotate by a tool through the driving groove 642; adjust cover 64 and drive gear 63 synchronous rotation, on the one hand, drive gear 63 orders about other drive gear 63 through linkage gear 62 and rotates, and on the other hand, owing to adjust a section of thick bamboo 65 and can not rotate, realize that drive gear 63 orders about and adjusts a section of thick bamboo 65 reciprocating motion back and forth in drive gear 63 to the realization is adjusted three magnetic part of arranging in adjusting a section of thick bamboo 65 simultaneously, and then realizes adjusting the magnetic part in the hornblock body 3 simultaneously. The adjustment cylinder 65 is positioned within the adjustment cover 64 and within the adjustment aperture 311 such that the magnetic elements within the adjustment cylinder 65 are more easily functional. The outer wall of angle block casing 31 is equipped with a plurality of groups and is used for showing the second scale 312 of magnetic force size, and second scale 312 is around locating regulation hole 311, and the tip of adjusting cover 64 is seted up towards the second sign 643 of second scale 312 to in the magnetic force size of magnetic member performance in adjusting angle block body 3 according to second scale 312.

Referring to fig. 13, the linkage mechanism 6 in the corner block body 3 is additionally provided, and since the linkage mechanism 6 is mostly identical to the linkage mechanism 6 described above, the description of the duplicated parts will be omitted. This linkage mechanism 6 differs from the linkage mechanism 6 described above in that: a driving gear 63 and a second scale 312, wherein the driving gear 63 is an incomplete gear, such as a gear with only half of the number of teeth; two sets of second scales 312 are correspondingly disposed on the outer wall of the corner block housing 31, and the two sets of second scales 312 are wound on two sides of the adjusting hole 311. In the linkage mechanism 6, because the driving gear 63 is incomplete, the rotation range of the driving gear 63 is theoretically reduced, so that the rotation ranges of the adjusting cover 64 and the adjusting cylinder 65 are reduced; theoretically, the effect of the two linkages 6 in adjusting the magnetic member is the same, and thus the effect of the adjustment cylinder 65 is the same.

When the magic cube makes fault-tolerant movement or pulls the center block body 2, the center block shell 21 moves towards the center direction far away from the center shaft structure 1, the oil storage part 251 and the pressing piece 252 move towards the center direction far away from the center shaft structure 1 along with the center block shell 21, so that the oil storage part 251 and the pressing piece 252 simultaneously press the buckling block 2418 of the bearing top block 2412, the oil storage part 251 is squeezed, and oil in the oil storage part 251 is squeezed out from the pressure membrane 2513 of the oil outlet pipe 2511. The oil flows between the clamping pin assembly 43 and the corner block clamping pin 33, between the center block shell 21 and the corner block shell 41 and between the corner block shell 41 and the corner block shell 31, on one hand, the magic cube between the clamping pin assembly 43 and the corner block clamping pin 33, between the center block shell 21 and the corner block shell 41 and between the corner block shell 41 and the corner block shell 31 is reduced, the resistance of the magic cube in rotation is reduced, and therefore the experience of playing the magic cube is optimized; on the other hand, the oil is reserved in the oil groove, so that the lubrication state between the clamping pin assembly 43 and the corner block clamping pin 33, between the center block shell 21 and the corner block shell 41 and between the corner block shell 41 and the corner block shell 31 can be maintained for a long time, and the better rotating performance of the magic cube can be maintained for a long time.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A central block of a magic cube, characterized in that: the magic cube comprises a center block shell (21) and a center block shell cover (22) used for covering the center block shell (21), wherein the center block shell cover (22) is circular, the bottom, far away from the center block shell (21), of the center block shell (22) is square, the open end of the center block shell (21) is matched with the center block shell cover (22) to be circular, and the center block shell cover (22) covers the center block shell (21) so as to reduce friction between the center block and other magic cubes and reduce resistance of a rotating magic cube.

2. The central block of a puzzle according to claim 1, wherein: be equipped with oil storage module (25) between center block casing (21) and center block cap (22), oil outlet (211) with oil storage module (25) matched with is seted up to the bottom of center block casing (21) to oil in oil storage module (25) flows out from the center block through oil outlet (211).

3. The central block of a puzzle according to claim 2, wherein: the oil storage module (25) comprises an oil storage part (251) and a pressing sheet (252) for balancing and extruding the oil storage part, wherein the pressing sheet (252) is attached to the oil storage part (251).

4. A central block of a puzzle according to claim 3, wherein: the oil storage part (251) is provided with an oil outlet pipe (2511), and the oil outlet pipe (2511) extends into the oil outlet hole (211) so that oil in the oil storage part (251) can flow out of the oil outlet pipe (2511).

5. The central block of a puzzle according to claim 4, wherein: the oil storage part (251) is provided with an oil inlet pipe (2512), and the oil inlet pipe (2512) penetrates through the pressing plate (252) so as to add oil into the oil storage part (251) through the oil inlet pipe (2512).

6. The central block of a puzzle according to claim 5, wherein: the tail ends of the oil outlet pipe (2511) and the oil inlet pipe (2512) are provided with pressure diaphragms (2513) with openings, oil can penetrate through the oil outlet pipe (2511) and the oil inlet pipe (2512) by extruding the pressure diaphragms (2513), and the oil can flow into the oil storage part (251) through the oil inlet pipe (2512) or flow out of the oil storage part (251) through the oil outlet pipe (2511).

7. The central block of a puzzle according to claim 2, wherein: an elastic mechanism (24) for extruding the oil storage module (25) and a clamping structure (23) for connecting the central shaft structure (1) are arranged in the central block shell (21); the clamping structure (23) is located between the elastic mechanism (24) and the center block shell cover (22), and the oil storage module (25) is located between the elastic mechanism (24) and the bottom of the center block shell (21).

8. The central block of a puzzle according to claim 1, wherein: the inner wall of center piece casing (21) is equipped with a plurality of fixed strips (214), the opening that center piece casing (21) are close to in fixed strip (214), center piece cap (22) are equipped with fixed strip (214) assorted fixed slot (221), center piece cap (22) lid is realized fixed strip (214) card and is gone into in fixed slot (221) to restriction center piece cap (22) throw off from center piece casing (21).

9. The central block of a puzzle according to claim 1, wherein: and a sealing ring (26) is arranged between the central block shell (21) and the central block shell cover (22).

10. A magic cube is characterized in that: the magic cube comprises a central shaft structure (1), a central block body (2), a prism block body (4) and an angle block body (3), wherein the central shaft structure (1) is connected with the central block body (2), the prism block body (4) and the angle block body (3) are clamped between the central block body (2) and the central shaft structure (1), the prism block body (4) and the angle block body (3) are clamped in a sliding manner, the central block body (2) comprises the central block shell (21) and a central block shell cover (22) covering the central block shell (21) according to any one of claims 1-9, the central block shell cover (22) is in a circular shape, a gap exists between the central block shell cover (22) and the prism block body (4), and when the magic cube does fault-tolerant movement, the central block shell cover (22) is in point or line contact with the prism block body (4) so as to reduce friction between the central block shell cover (22) and the prism block body (4); the open end of center block casing (21) cooperation center block cap (22) are circular shape to reduce the contact of center block casing (21) and arris piece body (4), thereby reduce the contact of center block body (2) and arris piece body (4), realize reducing the friction between center block body (2) and arris piece body (4), thereby reduce the resistance that the fault-tolerant motion was done to the magic cube.