A magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force

Abstract

The present invention provides a magnetic positioning structure magic cube with adjustable and replaceable magnetic force for center axis positioning, comprising: a center axis, the center axis comprising an axis seat, the axis seat is integrally formed with a stepped axis body extending in six directions of forward, backward, left, right, up and down, the axis seat is also integrally provided with eight magnet mounting seats, each magnet mounting seat is located at the center of the intersection of three stepped axis bodies, and each magnet mounting seat is installed with a magnet; six center blocks with adjustable magnetic force and wheelbase installed on the stepped axis body of the center axis; eight magnetically adjustable corner blocks fitted with the center block and the edge blocks; twelve magnetically adjustable edge blocks fitted with the center block and the corner blocks. The present invention can realize the automatic return of the magic cube during the high-speed rotation of the magic cube through the structural design of the center axis, the center block, the corner blocks and the edge blocks, and improve the stability and accuracy of positioning.

Description

Technical Field

[0001] The invention relates to the technical field of magic cubes, and in particular to a magic cube with a magnetic positioning structure whose central axis positioning magnetic force is adjustable and replaceable. Background Art

[0002] The traditional Rubik's Cube is a 6-sided cube made of flexible hard plastic. The core is an axis and consists of 26 blocks. The 26 blocks include 6 inner center blocks, which are fixed and have only one side with color. 8 corner blocks can rotate. 12 edge blocks can also rotate. When the toy is sold, the blocks are arranged so that each side of the cube has the same color. When one side of the large cube rotates horizontally, the single color of its adjacent sides is destroyed, and the cube that forms a new pattern will rotate and change again, forming each side with blocks of different colors. The way to play is to restore the scrambled cube to a single color on all six sides as quickly as possible by rotating it.

[0003] Since its advent, the Rubik's Cube has been popular all over the world because of its strong educational function for humans. The Rubik's Cube is easy to understand, changeable and flexible. In order to play it well, the player must be able to concentrate, think continuously, and not be impatient to gradually become proficient in it. In a sense, the Rubik's Cube has become a toy for special intellectual development and a toy for testing the player's intelligence level and maturity, thus attracting batches of players.

[0004] In the Rubik's Cube competition, a more complex Rubik's Cube is usually used as a competition prop. During the competition, the contestants need to rotate it quickly in order to complete the reordering of the Rubik's Cube in the shortest time. The traditional Rubik's Cube relies on the player's precise rotation when rotating, and the Rubik's Cube needs to be rotated 90 degrees each time, so that the Rubik's Cube is not easy to get stuck. The Rubik's Cube with magnetic positioning blocks will have magnetic attraction to allow the Rubik's Cube to be magnetically adsorbed at 90 degrees, and the positioning is more accurate.

[0005] However, the existing magnetic magic cube has the following defects:

[0006] (1) Some existing magnetic Rubik's Cubes have magnetic suction structures that are positioned on the top surface. Most of them are positioned by a positioning magnet in the middle of the corner block and the edge block. The magnetic force of the positioning magnets is relatively strong, and the starting resistance of the Rubik's Cube from static to rotating is relatively large, which is not conducive to quickly restoring the Rubik's Cube.

[0007] (2) Some existing magnetic Rubik's Cubes are equipped with magnetic positioning devices, which are usually magnets. First, the entire Rubik's Cube needs to be disassembled and the magnets are glued to the inner wall of the cube using glue or other chemical substances. The use of glue is not only environmentally friendly, but also has poor assembly accuracy and is not easy to replace the magnets. It is difficult to change the size of the magnetic force of the cube, and thus it is difficult to adjust the magnetic force of the layer where the cube is located.

[0008] (3) Most of the existing Rubik's Cube center blocks on the market use the elastic force of springs to compress the corner blocks and edge blocks, and rely on adjusting the elastic force to adjust the force of rotation. The spring and the center block are in contact, so the friction resistance is large, which is not conducive to increasing the rotation speed. Some existing magnetic Rubik's Cubes use iron shafts to adjust the elastic force, which is not convenient and accurate enough in operation.

[0009] (4) Some existing magnetic Rubik's Cubes do not have a multi-level switching structure that can adjust the gears after the magnets are replaced, and cannot effectively be fully compatible with multi-level magnetic forces.

[0010] (5) There are some existing magnetic Rubik's Cubes on the market. There is no obvious reference for adjusting the magnetic force and wheelbase, making the adjustment inconvenient and inaccurate. Summary of the invention

[0011] In view of the shortcomings of the prior art, the present invention proposes a Rubik's Cube with a magnetic positioning structure whose central axis positioning magnetic force is adjustable and replaceable. Through the structural design of the central axis, central block, corner block and edge block, the force between the magnets at the bottom of the edge block and the magnets on the central axis can be realized during the high-speed rotation of the Rubik's Cube, thereby assisting the Rubik's Cube to automatically return to its original position, and then combining with the magnets at the bottom of the corner block to position it to the exact position, so that the positioning of the Rubik's Cube is more stable and accurate during the high-speed rotation of the Rubik's Cube.

[0012] To realize the above technical scheme, the present invention provides a magnetic positioning structure magic cube with adjustable and replaceable magnetic force of the center axis positioning, comprising: a center axis, the center axis comprises an axis seat, the axis seat is integrally formed with a stepped axis body extending in six directions of forward, backward, left, right, up and down, the axis seat is also integrally provided with eight magnet mounting seats, each magnet mounting seat is located at the center of the intersection of three stepped axis bodies, and a magnet is installed in each magnet mounting seat; six center blocks installed on the stepped axis body of the center axis, the six center blocks have the same structure, all of which comprise a center block seat, a magnetic adjustment dial, a wheelbase adjustment dial and a wheelbase adjustment display dial are installed in the center block seat, the outer shell top cover is buckled on the top of the center block seat, and the center axis stepped axis body passes through the center block seat, the magnetic adjustment dial and the wheelbase adjustment dial from bottom to top in sequence, and is then embedded in the wheelbase Adjust the display panel; eight corner blocks that are fitted with the center block and the edge blocks, and the eight corner blocks have the same structure, all of which include a corner block seat, in which a corner block magnetic adjustment chassis, a corner block magnetic adjustment middle plate and a corner block magnetic adjustment dial are installed, the top of the corner block adjustment magnetic rod penetrates through the bottom of the corner block seat and the bottom of the corner block magnetic adjustment chassis from the bottom to the top and is fixed on the corner block magnetic adjustment middle plate, and the corner block outer shell is installed on the top of the corner block seat; twelve edge blocks that are fitted with the center block and the corner blocks, and the twelve edge blocks have the same structure, all of which include an edge block seat, in which a corner block magnetic adjustment chassis, a corner block magnetic adjustment middle plate and a corner block magnetic adjustment dial are installed, the edge block adjustment magnetic rod penetrates through the bottom of the edge block seat and the bottom of the edge block magnetic adjustment chassis from the bottom to the top and is fixed on the edge block magnetic adjustment middle plate, and the edge block outer shell is installed on the top of the edge block seat.

[0013] Preferably, the center block seat is provided with magnetic gear adjustment step bottom teeth, the bottom of the center block magnetic adjustment dial is provided with magnetic gear adjustment step top teeth, the center block magnetic adjustment dial is installed in the center block seat, and the magnetic gear adjustment step top teeth at the bottom of the center block magnetic adjustment dial are offset against the magnetic gear adjustment step bottom teeth set in the center block seat, the wheelbase adjustment dial is installed in the center block seat and is located above the center block magnetic adjustment dial, the wheelbase adjustment dial is provided with wheelbase gear adjustment step bottom teeth, the wheelbase adjustment display disk is provided with wheelbase gear adjustment step top teeth at the bottom, the wheelbase adjustment display disk is installed in the wheelbase adjustment dial, and the wheelbase gear adjustment step top teeth set at the bottom of the wheelbase adjustment display disk are offset against the wheelbase gear adjustment step bottom teeth set in the wheelbase adjustment dial, the outer shell sheet top cover is buckled on the top of the center block seat and shields the center block magnetic adjustment dial, the wheelbase adjustment dial and the wheelbase adjustment display disk in the center block seat.

[0014] Preferably, the center block seat includes a center block seat body, a hollow center column is arranged in the center of the center block seat body, the magnetic gear adjustment step bottom teeth are arranged in a ring shape on the periphery of the center column, and the periphery of the magnetic gear adjustment step bottom teeth are arranged with magnetic gear display numbers, and the center block magnetic adjustment dial includes a magnetic dial body, and the magnetic dial body is equipped with a plurality of large magnet mounting grooves distributed in a circular array with the center of the magnetic dial body as the center, and small magnet mounting grooves are installed between adjacent large magnet mounting grooves, large magnets are installed in the large magnet mounting grooves, and small magnets are installed in the small magnet mounting grooves, the magnetic gear adjustment step top teeth are arranged at the bottom of the center of the magnetic dial body, and the end edge of the magnetic dial body is also provided with a magnetic gear indication arrow.

[0015] Preferably, the wheelbase adjustment dial includes a wheelbase dial body, a plurality of center block magnet mounting seats open downwardly are arranged on the end edges of the wheelbase dial body, a large magnet is installed in each center block magnet mounting seat, a center hole is arranged in the center of the wheelbase dial body, the wheelbase gear adjustment step bottom teeth are arranged on the top surface of the wheelbase dial body and are located at the periphery of the center hole, a wheelbase gear dial slot is arranged on the end edge of the top surface of the wheelbase dial body, the wheelbase adjustment display dial includes a display dial body, the top surface of the display dial body is arranged with wheelbase gear display numbers, a center axis slot is arranged in the center of the display dial body, the top of the center axis longitudinally penetrates the center block seat, the center block magnetic adjustment dial and the wheelbase adjustment dial in sequence from bottom to top, and is then embedded in the center axis slot of the wheelbase adjustment display dial, and the wheelbase gear adjustment step top teeth are arranged at the bottom center of the display dial body.

[0016] Preferably, the corner block seat includes a corner block seat body, the bottom of the corner block seat body is integrally provided with a corner block movable clamping foot, and the corner block seat body is provided with a plurality of corner block installation and positioning columns arranged vertically upward, and a corner block and corner block magnetic adjustment rod through hole is provided at the center of the plurality of corner block installation and positioning columns, and a corner block magnetic adjustment component installation and positioning ring is provided at the periphery of the plurality of corner block installation and positioning columns, and the corner block magnetic adjustment bottom plate, the corner block magnetic adjustment middle plate and the corner block magnetic adjustment dial are all installed in the corner block magnetic adjustment component installation and positioning ring, and three corner block magnet mounting seats are provided in the corner block seat body, and a magnet is installed in each corner block magnet mounting seat, and the upper end edge of the corner block seat body is provided with a corner block shell piece installation fitting groove, and a corner block shell piece buckling groove is provided on one side of the corner block shell piece installation fitting groove. The corner block shell piece is respectively buckled on the corner block seat body through the corner block shell piece installation fitting groove and the corner block shell piece buckling groove, and a corner block adjustment window is arranged on the outer wall of the corner block seat body, a gear number alignment point is arranged below the corner block adjustment window, and an angle block adjustment direction indication arrow is arranged above the corner block adjustment window; the corner block shell piece includes a corner block shell piece body, a corner block positioning groove and a corner block positioning protrusion are arranged on the inner side surface of the corner block shell piece body, and adjacent corner block shell pieces are snap-connected through the cooperation between the corner block positioning groove and the corner block positioning protrusion, and a buckling block, a wedge block and a sleeve column are also arranged on the corner block shell piece body, wherein the buckling block can be inserted into the corner block shell piece buckling groove on the corner block seat, the wedge block can be inserted into the corner block shell piece installation fitting groove on the corner block seat, and the sleeve column can be sleeved on the corner block installation positioning column of the corner block seat;

[0017] Preferably, the corner block magnetic adjustment chassis includes a corner block chassis body, which is installed in the corner block magnetic adjustment component installation positioning circle of the corner block seat, and the corner block chassis body is provided with a corner block gear adjustment step bottom tooth, and the end edge of the corner block chassis body is provided with a corner block positioning protrusion; the corner block magnetic adjustment middle plate includes a corner block middle plate body, and the bottom of the corner block middle plate body is provided with a corner block gear adjustment step top tooth matching the corner block gear adjustment step bottom tooth on the corner block chassis body, and the center of the corner block middle plate body is provided with a corner block magnetic adjustment rod clamping hole matching the corner block magnetic adjustment rod, and the periphery of the corner block magnetic adjustment rod clamping hole on the corner block middle plate body is provided with a corner block positioning sleeve hole matching the corner block installation positioning column on the corner block seat, the corner block magnetic adjustment middle plate is fixed on the corner block seat through the corner block positioning sleeve hole and the corner block installation positioning column on the corner block seat, and the top surface of the corner block middle plate body is provided with annularly distributed corner block dial clamping teeth.

[0018] Preferably, the corner block magnetic adjustment dial includes a corner block dial body, a plurality of corner block positioning protrusions distributed in a ring shape and protruding upward are arranged in the middle part of the corner block dial body, a corner block chassis slot matching the corner block positioning protrusions on the corner block magnetic adjustment chassis is arranged at the periphery of the corner block positioning protrusions, the corner block middle disk body is embedded and installed in the corner block dial body, corner block gear display numbers are arranged on the bottom outer wall of the corner block dial body, and a corner block gear adjustment hole is arranged between adjacent corner block gear display numbers, and the corner block gear display numbers can be displayed outwardly through a corner block adjustment window arranged on the corner block seat; the corner block adjustment magnetic rod includes a corner block adjustment magnetic rod body, a triangular buckle is arranged on the top of the corner block adjustment magnetic rod body, the top of the corner block adjustment magnetic rod body is installed in the corner block adjustment magnetic rod hole arranged on the corner block magnetic adjustment middle disk and is connected by the triangular buckle, and a first magnet seat is arranged at the bottom of the corner block adjustment magnetic rod body, and a magnet is installed in the first magnet seat.

[0019] Preferably, the edge block seat includes an edge block seat body, the bottom of the edge block seat body is integrally provided with an edge block movable clamping foot, the center of the edge block seat body is provided with an edge block magnetic adjustment component installation positioning ring, the center of the edge block magnetic adjustment component installation positioning ring is provided with an edge block magnetic adjustment rod through hole which longitudinally penetrates the edge block seat body and the edge block movable clamping foot, the edge block magnetic adjustment chassis is installed in the edge block magnetic adjustment component installation positioning ring, the edge block magnetic adjustment middle plate is installed above the edge block magnetic adjustment chassis, the edge block magnetic adjustment dial is installed above the edge block magnetic adjustment middle plate and the edge block magnetic adjustment middle plate is embedded in the edge block magnetic adjustment dial, the edge block magnetic adjustment rod passes through the edge block magnetic adjustment rod through hole from the bottom of the edge block seat from bottom to top in turn and is fixed on the edge block magnetic adjustment middle plate, the edge block shell piece is installed on the top of the edge block seat and encloses the edge block magnetic adjustment chassis, the edge block magnetic adjustment middle plate and the edge block magnetic adjustment dial in the edge block seat.

[0020] Preferably, the edge block shell piece comprises an edge block shell piece body, an edge block positioning groove and an edge block positioning protrusion are provided on the inner side surface of the edge block shell piece body, and the two edge block shell pieces are snap-fitted and connected through the cooperation between the edge block positioning groove and the edge block positioning protrusion, and a clip strip is also provided on the edge block shell piece body, and the clip strip can be inserted into the edge block seat body and fit into the edge block shell piece installation positioning buckle; an edge block adjustment window is provided on the outer wall of the edge block seat body, and an edge block adjustment direction indicating arrow is provided above the edge block adjustment window; the edge block shell piece comprises an edge block shell piece body, an edge block positioning groove and an edge block positioning protrusion are provided on the inner side surface of the edge block shell piece body, and the two edge block shell pieces are snap-fitted and connected through the cooperation between the edge block positioning groove and the edge block positioning protrusion, and a clip strip is also provided on the edge block shell piece body, and the clip strip can be inserted into the edge block seat body and fit into the edge block shell piece installation positioning buckle.

[0021] Preferably, the edge block magnetic adjustment chassis includes an edge block chassis body, the edge block chassis body is installed in the edge block magnetic adjustment component installation positioning ring of the edge block seat, the edge block chassis body is provided with edge block gear adjustment step bottom teeth, and the end edge of the edge block chassis body is provided with an edge block positioning protrusion; the edge block magnetic adjustment middle plate includes an edge block middle plate body, and the bottom of the edge block middle plate body is provided with an edge block gear adjustment step matching the edge block gear adjustment step bottom teeth on the edge block chassis body. The edge block magnetic adjustment rod clamping hole matching the edge block magnetic adjustment rod is arranged at the center of the edge block middle disk body, and the edge block positioning sleeve hole matching the edge block installation positioning column on the edge block seat is arranged on the edge block middle disk body at the periphery of the edge block magnetic adjustment rod clamping hole. The edge block magnetic force adjustment middle disk is fixed on the edge block seat through the edge block positioning sleeve hole and the edge block installation positioning column on the edge block seat. The top surface of the edge block middle disk body is provided with annularly distributed edge block dial clamping teeth; the edge block magnetic adjustment dial includes The invention relates to a block dial body, wherein a plurality of block positioning protrusions distributed in an annular manner are arranged in the middle of the block dial body, and the block positioning protrusions match the block dial teeth, and a block chassis slot matching the block positioning protrusions on the block magnetic adjustment chassis is arranged at the periphery of the block positioning protrusions, and the block middle disk body is embedded and installed in the block dial body, and a block gear display protrusion for displaying the gear is arranged on the bottom outer wall of the block dial body, and a block gear adjustment hole is arranged between the block gear display protrusions between different gears, and the block gear display protrusion can be displayed outwardly through the block adjustment window arranged on the block seat; the block magnetic adjustment rod comprises a block magnetic adjustment rod body, and a card strip protrusion is arranged on the top of the block magnetic adjustment rod body, and the top of the block magnetic adjustment rod body is installed in the block magnetic adjustment rod card hole arranged on the block magnetic adjustment middle disk and is connected by the card strip protrusion, and a second magnet seat is arranged at the bottom of the block magnetic adjustment rod body, and a magnet is installed in the second magnet seat.

[0022] The beneficial effects of the magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force provided by the present invention are:

[0023] 1) The center axis positioning magnetic force of the Rubik's Cube with adjustable and replaceable magnetic positioning can realize the force between the magnets at the bottom of the edge blocks and the magnets on the center axis during the high-speed rotation of the Rubik's Cube through the structural design of the center axis, center block, corner block and edge block, so as to assist the Rubik's Cube to automatically return to its original position, and then combine the magnets at the bottom of the corner blocks to position it to the correct position, so that the positioning of the Rubik's Cube is more stable and accurate during the high-speed rotation of the Rubik's Cube;

[0024] 2) The center block uses two annular magnets, one above the other, and uses the repulsive force of the same poles of the magnets to replace the elastic force of the spring, so that the center block and the center axis have no contact in the longitudinal direction, which greatly reduces the rotation resistance. The multi-speed magnetic force adjustment and replacement structure, replaceable magnets and adjustable coordination can adjust the magnetic force to your satisfaction. The center block adopts a multi-speed wheelbase adjustment and replacement structure design, which can adjust or replace the wheelbase that suits you to meet the needs of various wheelbases.

[0025] 3) A magnet is used at the bottom of the edge block to assist in the automatic return design; during high-speed rotation, the force between the magnet at the bottom of the edge block and the magnet set on the central axis assists the Rubik's Cube to return to its original position automatically, and then combined with the magnet at the bottom of the corner block to locate it to the correct position, so that the Rubik's Cube can be positioned more stably and accurately during high-speed rotation, and the thrust of starting the Rubik's Cube from static to rotation is greatly reduced;

[0026] 4) The magnet of the central axis is placed as close to the center of the axis as possible, so that the magnetic attraction position is moved downward, which greatly increases the rotation torque and greatly reduces the rotation thrust; the traditional magnetic Rubik's Cube method is changed, and the position of the magnetic force is made at the bottom of the corner block and edge block, and adsorbed with the corresponding structure of the central axis, thereby realizing the large-angle automatic homing function and positioning function of the Rubik's Cube;

[0027] 5) The corner blocks and edge blocks all use a magnetic adjustment component structure consisting of a magnetic adjustment chassis, a magnetic adjustment middle plate and a magnetic adjustment dial, which can drive the magnetic rod to rise and fall, adjust the magnetic distance, change the magnetic attraction, and thus realize the function of variable magnetic force, achieve magnetic distances of different gears, form multi-level adjustable magnetic force, and fully compatible with the magnetic force size change of each gear;

[0028] 6) Both magnetic adjustment and wheelbase adjustment use digital display to improve the convenience and accuracy of adjustment.

[0029] 7) The edge blocks and corner blocks adopt an inward buckling structure, which can reduce the assembly weight, making the entire Rubik's Cube lighter, more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure assembly of the present invention.

[0031] Figure 2 It is a schematic exploded view of the three-dimensional structure of the present invention.

[0032] Figure 3 It is a schematic diagram of the partial assembly structure of the central axis, corner blocks, edge blocks and central block in the present invention.

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the corner block in the present invention.

[0034] Figure 5It is a schematic diagram of the exploded three-dimensional structure of the corner block in the present invention.

[0035] Figure 6 The three-dimensional structure of the corner block seat in the present invention is shown in FIG. Figure Ⅰ .

[0036] Figure 7 The three-dimensional structure of the corner block seat in the present invention is shown in FIG. Figure II .

[0037] Figure 8 It is a schematic diagram of the three-dimensional structure of the corner block shell piece in the present invention.

[0038] Fig. 9 It is a schematic diagram of the three-dimensional structural assembly of the corner block seat, the corner block magnetic adjustment rod, the corner block magnetic adjustment bottom plate, the corner block magnetic adjustment middle plate and the corner block magnetic adjustment dial in the present invention.

[0039] Fig.10 It is a schematic diagram of the three-dimensional structural assembly of the corner block magnetic adjustment rod, the corner block magnetic adjustment base plate, the corner block magnetic adjustment middle plate and the corner block magnetic adjustment dial in the present invention.

[0040] Fig.11 It is a schematic exploded view of the three-dimensional structure of the corner block magnetic adjustment rod, the corner block magnetic adjustment base, the corner block magnetic adjustment middle plate and the corner block magnetic adjustment dial in the present invention.

[0041] Fig.12 It is a schematic diagram of the three-dimensional structure of the edge block in the present invention.

[0042] Fig.13 It is a schematic diagram of the exploded three-dimensional structure of the edge block in the present invention.

[0043] Fig.14 It is a schematic diagram of the three-dimensional structural assembly of the edge block seat, the edge block magnetic adjustment rod, the edge block magnetic force adjustment bottom plate, the edge block magnetic force adjustment middle plate and the edge block magnetic force adjustment dial in the present invention.

[0044] Fig.15 The three-dimensional structure of the edge block seat in the present invention is shown in FIG. Figure Ⅰ .

[0045] Fig.16 The three-dimensional structure of the edge block seat in the present invention is shown in FIG. Figure II .

[0046] Fig.17 It is a schematic diagram of the three-dimensional structure of the edge block shell piece in the present invention.

[0047] Fig.18 It is a schematic diagram of the three-dimensional structural assembly of the edge block magnetic adjustment rod, the edge block magnetic adjustment bottom plate, the edge block magnetic adjustment middle plate and the edge block magnetic adjustment dial in the present invention.

[0048] Fig.19It is a schematic exploded view of the three-dimensional structure of the edge block magnetic adjustment rod, the edge block magnetic adjustment base plate, the edge block magnetic adjustment middle plate and the edge block magnetic adjustment dial in the present invention.

[0049] Fig. 20 It is a schematic diagram of the three-dimensional structural assembly of the central block and the central axis in the present invention.

[0050] Fig.21 It is a schematic diagram of the three-dimensional structure explosion of the central block and the central axis in the present invention.

[0051] Fig. 22 The internal structure installation diagram of the center block in the present invention Figure Ⅰ .

[0052] Fig.23 The internal structure installation diagram of the center block in the present invention Figure II .

[0053] Fig.24 It is a schematic diagram of the three-dimensional structural assembly of the center block magnetic adjustment dial, the wheelbase adjustment dial and the wheelbase adjustment display plate in the present invention.

[0054] Fig.25 It is a schematic exploded view of the three-dimensional structural assembly of the wheelbase adjustment dial and the wheelbase adjustment display plate in the present invention.

[0055] Fig.26 It is a schematic diagram of the three-dimensional structural assembly of the center block magnetic adjustment dial and the center block seat in the present invention.

[0056] Fig. 27 It is a schematic diagram of the three-dimensional structure of the center block seat in the present invention.

[0057] Fig.28 It is a schematic diagram of the three-dimensional structure of the magnetic force adjustment dial of the center block in the present invention.

[0058] Fig.29 It is a schematic diagram of the three-dimensional structure of the central axis in the present invention.

[0059] Fig.30 It is a schematic diagram of the local structure of the central axis in the present invention.

[0060] In the figure: 1, corner block; 11, corner block seat; 111, corner block seat body; 112, corner block movable foot; 113, shell piece buckling groove; 114, corner block installation positioning column; 115, corner block adjustment window; 116, gear number alignment point; 117, angle block adjustment direction indication arrow; 118, shell piece installation fitting groove; 119, angle block magnetic adjustment component installation positioning ring; 1110, angle block magnetic adjustment rod through hole; 1111, angle block magnet installation seat; 12, angle block shell piece; 121, angle block shell piece body; 122, angle block positioning groove; 123, angle block positioning protrusion; 124, limit block; 125, buckle block; 126, wedge block; 127, sleeve column; 13, corner block Magnetic adjustment rod; 131, angle block magnetic adjustment rod body; 132, first magnet seat; 133, triangular buckle; 14, angle block magnetic adjustment chassis; 141, angle block chassis body; 142, angle block gear adjustment ladder bottom teeth; 143, angle block positioning convex block; 15, angle block magnetic adjustment middle plate; 151, angle block middle plate body; 152, angle block magnetic adjustment rod clamping hole; 153, angle block positioning sleeve hole; 154, angle block dial clamping teeth; 155, angle block gear adjustment ladder top teeth; 16, angle block magnetic adjustment dial; 161, angle block dial body; 162, angle block positioning convex point; 163, angle block chassis clamping slot; 164, angle block gear display number; 165, angle block gear adjustment hole; 17, magnet;

[0061] 2. Edge block; 21. Edge block seat; 211. Edge block seat body; 212. Edge block movable clamping foot; 213. Edge block magnetic adjustment rod through hole; 214. Edge block adjustment window; 215. Edge block adjustment direction indication arrow; 216. Edge block installation positioning column; 217. Edge block magnetic force adjustment assembly installation positioning ring; 218. Shell piece installation positioning buckle; 219. Edge block magnet mounting seat; 22. Edge block shell piece; 221. Edge block shell piece body; 222. Edge block positioning protrusion; 223. Edge block positioning groove; 224. Card strip; 23. Edge block magnetic adjustment rod; 231. Edge block magnetic adjustment rod body; 232. Second magnetic Iron seat; 233, card bar protrusion; 24, edge block magnetic adjustment chassis; 241, edge block chassis body; 242, edge block gear adjustment ladder bottom tooth; 243, edge block positioning protrusion; 25, edge block magnetic adjustment middle plate; 251, edge block middle plate body; 252, edge block magnetic adjustment rod clamping hole; 253, edge block positioning sleeve hole; 254, edge block dial clamping tooth; 255, edge block gear adjustment ladder top tooth; 26, edge block magnetic adjustment dial; 261, edge block dial body; 262, edge block positioning protrusion; 263, edge block chassis clamping slot; 264, edge block gear display protrusion; 265, edge block gear adjustment hole;

[0062] 3. Center block; 31. Center block seat; 311. Center block seat body; 312. Center column; 313. Magnetic gear position display number; 314. Magnetic gear position adjustment step bottom gear; 32. Center block magnetic adjustment dial; 321. Magnetic dial body; 322. Large magnet installation slot; 323. Small magnet installation slot; 324. Magnetic gear position indication arrow; 325. Magnetic gear position adjustment step top gear; 331. Large magnet; 3 32. Small magnet; 34. Wheelbase adjustment dial; 341. Wheelbase dial body; 342. Center block magnet mounting seat; 343. Wheelbase gear position dial slot; 344. Wheelbase gear position adjustment step bottom gear; 345. Center hole; 35. Wheelbase adjustment display plate; 351. Display plate body; 352. Center axis slot; 353. Wheelbase gear position display number; 354. Wheelbase gear position adjustment step top gear; 36. Shell cover;

[0063] 4. Central axis; 41. Shaft seat; 42. Shaft body; 421. First step column; 422. Second step column; 423. Third step column; 424. Buckle protrusion; 43. Magnet mounting seat; 431. Seat body; 432. Mounting hole; 433. Block; 45. Reinforcing rib. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary persons in the art without creative work are within the scope of protection of the present invention.

[0065] Embodiment: A magic cube with magnetic positioning structure whose central axis positioning magnetic force is adjustable and replaceable.

[0066] Reference Figures 1 to 30 As shown, a magnetic positioning structure magic cube with adjustable and replaceable central axis positioning magnetic force comprises:

[0067] A central axis 4 (see Fig.29 and Fig.30), the central axis 4 includes an axis seat 41, and a stepped axis body 42 extending in six directions, namely, forward, backward, left, right, up and down, is integrally formed on the axis seat 41, and the stepped axis body 42 is composed of a first stepped column 421, a second stepped column 422 and a third stepped column 423 with diameters from large to small, and a snap protrusion 424 is provided on the top of the third stepped column 423, and the function of the snap protrusion 424 is to achieve snap connection with the central block 3; setting the axis body 42 in a stepped shape can reduce the overall weight of the axis while ensuring strength, thereby achieving lightweighting of the Rubik's Cube, and eight magnet mounting seats 43 are also integrally provided on the axis seat 41, and each magnet mounting seat 43 is located on three stepped axes At the center of the intersection of the shaft body 42, a magnet 17 is installed in each magnet mounting seat 43, and the magnet mounting seat 43 includes a cylindrical seat body 431 integrally formed and fixed on the shaft seat 41, and a mounting hole 432 is opened on the cylindrical seat body 431. A plurality of clamping blocks 433 distributed in a circular array with the center of the mounting hole 432 as the center are arranged on the inner wall of the mounting hole 432. The magnet 17 is pressed into the mounting hole 432 and clamped by the clamping blocks 433, which is conducive to the rapid assembly of the magnet 17 and improves the fixing strength of the magnet 17. A reinforcing rib 45 is arranged between the first step column 421 of each stepped shaft body 42 and the outer wall of the corresponding magnet mounting seat 43 to improve the strength of the stepped shaft body 42. The integrated magnetic center axis 4 of the Rubik's Cube has a simple structure, ingenious design and reasonable structure. During actual assembly, it is only necessary to install the six center blocks 3 on the stepped axis body 42 which is integrally formed on the axis seat 41 and extends in six directions: forward, backward, left, right, up and down. By means of eight magnet mounting seats 43 integrally provided on the axis seat 41 and eight axial magnets 17 installed accordingly, suction can be formed with the magnets 17 in the edge blocks 2 and corner blocks 1. When the edge blocks 2 and corner blocks 1 rotate and the rotational torque is removed, the edge blocks 2 and corner blocks 1 can automatically return to their original positions at a large angle under the gravitational effect of the axial magnets 17 and the magnets 17 in the edge blocks 2 and corner blocks 1.

[0068] Six center blocks 3 mounted on the stepped shaft body 42 of the center shaft 4 (see Figures 20 to 28), the center block 3 includes a center block seat 31, a center block magnetic adjustment dial 32, a wheelbase adjustment dial 34, a wheelbase adjustment display plate 35 and a shell cover 36, wherein the center block seat 31 is provided with a magnetic gear adjustment ladder bottom tooth 314, the bottom of the center block magnetic adjustment dial 32 is provided with a magnetic gear adjustment ladder top tooth 325, the center block magnetic adjustment dial 32 is installed in the center block seat 31, and the magnetic gear adjustment at the bottom of the center block magnetic adjustment dial 32 The top teeth 325 of the adjustment step are against the bottom teeth 314 of the magnetic gear adjustment step set in the center block seat 31. In the actual adjustment process, the center block magnetic adjustment dial 32 can be turned to make the center block magnetic adjustment dial 32 rotate relative to the bottom teeth 314 of the magnetic gear adjustment step in the center block seat 31, and the support between the top teeth 325 of the magnetic gear adjustment step at the bottom of the center block magnetic adjustment dial 32 and the bottom teeth 314 of the magnetic gear adjustment step set in the center block seat 31 is used. The height of the center block magnetic adjustment dial 32 can be adjusted according to the different support heights to form different magnetic gears; the wheelbase adjustment dial 34 is installed in the center block seat 31 and is located above the center block magnetic adjustment dial 32, and the wheelbase adjustment dial 34 is provided with a wheelbase gear adjustment step bottom tooth 344, and the wheelbase adjustment display disk 35 is provided with a wheelbase gear adjustment step top tooth 354 at the bottom, and the wheelbase adjustment display disk 35 is installed in the wheelbase adjustment dial 34, and the wheelbase gear adjustment step top tooth 354 set at the bottom of the wheelbase adjustment display disk 35 is offset against the wheelbase gear adjustment step bottom tooth 344 set in the wheelbase adjustment dial 34. During actual adjustment, the wheelbase adjustment dial 34 is toggled by the adjustment tool, and the wheelbase between the center axis 4 and the center block 3 can be adjusted by utilizing the cooperation between the wheelbase gear adjustment step bottom tooth 344 set in the wheelbase adjustment dial 34 and the wheelbase gear adjustment step top tooth 354 set at the bottom of the wheelbase adjustment display disk 35. The shell sheet top cover 36 is buckled on the top of the center block seat 31 and shields the center block magnetic adjustment dial 32, the wheelbase adjustment dial 34 and the wheelbase adjustment display plate 35 in the center block seat 31. The shell sheet top cover 36 can be opened or buckled relative to the center block seat 31.

[0069] Reference Fig.26 and Fig. 27 As shown, the center block seat 31 includes a center block seat body 311, a hollow center column 312 is arranged at the center of the center block seat body 311, a magnetic gear adjustment step bottom tooth 314 is arranged in a ring shape on the periphery of the center column 312, and a magnetic gear display number 313 is arranged on the periphery of the magnetic gear adjustment step bottom tooth 314. During actual assembly, the top end of the center shaft 4 passes through the center column 312, and the magnetic gear display number 313 matches the height of the magnetic gear adjustment step bottom tooth 314 to indicate the size of the magnetic gear.

[0070] Reference Fig.26 , Fig. 27 and Fig.28 As shown, the center block magnetic adjustment dial 32 includes a magnetic dial body 321, on which four large magnet mounting grooves 322 are installed in a circular array with the center of the magnetic dial body 321 as the center, and small magnet mounting grooves 323 are installed between adjacent large magnet mounting grooves 322, large magnets 331 are installed in the large magnet mounting grooves 322, and small magnets 332 are installed in the small magnet mounting grooves 323, and a magnetic gear adjustment step top tooth 325 is set at the bottom of the center of the magnetic dial body 321, and a magnetic gear indication arrow 324 is also set on the end edge of the magnetic dial body 321. In actual operation, by installing large magnets 331 and small magnets 332 of different sizes in the large and medium magnet mounting slots 322 and small magnet mounting slots 323 of the center block magnetic force adjustment dial 32, respectively, and cooperating with the magnets installed in the subsequent wheelbase adjustment dial 34, the repulsive force of the same poles of the magnets is used to replace the elastic force of the spring, so that the center block 3 and the center axis 4 are completely non-contact in the longitudinal direction, which greatly reduces the rotation resistance. Because the number and size of the magnets in the center block magnetic force adjustment dial 32 are different from the magnets installed in the wheelbase adjustment dial 34, the magic cube rotation resistance will change according to the rotation angle, which greatly improves the magic cube restoration speed. The magnetic gear indicator arrow 324 is used to cooperate with the magnetic gear display number 313 in the center block seat 31 to indicate the magnetic gear.

[0071] Reference Fig.23 , Fig.24 and Fig.25 As shown, the wheelbase adjustment dial 34 includes a wheelbase dial body 341, and four downwardly open center block magnet mounting seats 342 are arranged on the end edge of the wheelbase dial body 341, and a large magnet 331 is installed in each center block magnet mounting seat 342. A center hole 345 is arranged at the center of the wheelbase dial body 341, and a wheelbase gear adjustment stepped bottom tooth 344 is arranged on the top surface of the wheelbase dial body 341 and is located at the periphery of the center hole 345. A wheelbase gear shift groove 343 is arranged on the end edge of the top surface of the wheelbase dial body 341. During actual operation, an adjustment tool can be used to rotate the wheelbase dial body 341 through the wheelbase gear shift slot 343, and the distance between the wheelbase adjustment dial 34 and the wheelbase adjustment display disk 35 can be adjusted by utilizing the cooperation between the wheelbase gear adjustment step bottom teeth 344 of the wheelbase dial body 341 and the wheelbase gear adjustment step top teeth 354 on the wheelbase adjustment display disk 35, thereby adjusting the wheelbase between the center block 3 and the center axis 4.

[0072] Reference Fig. 22 , Fig.23 , Fig.24 and Fig.25As shown, the wheelbase adjustment display disk 35 includes a display disk body 351, and the top surface of the display disk body 351 is provided with wheelbase gear display numbers 353, and the center of the display disk body 351 is provided with a center axis slot 352, and the top of the center axis 4 longitudinally penetrates the center block seat 31, the center block magnetic adjustment dial 32 and the wheelbase adjustment dial 34 from bottom to top in sequence, and then is embedded in the center axis slot 352 of the wheelbase adjustment display disk 35, and the wheelbase gear adjustment step top tooth 354 is set at the bottom center of the display disk body 351. During actual assembly, the wheelbase gear adjustment step top tooth 354 is against the wheelbase gear adjustment step bottom tooth 344. During actual adjustment, the wheelbase adjustment dial 34 is rotated by using an adjustment tool, and the distance between the wheelbase adjustment dial 34 and the wheelbase adjustment display disk 35 is adjusted by using the cooperation between the wheelbase gear adjustment step bottom teeth 344 of the wheelbase adjustment dial 34 and the wheelbase gear adjustment step top teeth 354 on the wheelbase adjustment display disk 35. Since the top of the center axis 4 is embedded in the center axis clamping groove 352 of the wheelbase adjustment display disk 35, the distance between the wheelbase adjustment dial 34 and the wheelbase adjustment display disk 35 changes, and the center distance between the center axis 4 and the center block 3 also changes, thereby achieving the purpose of adjusting the wheelbase between the center block 3 and the center axis 4. The wheelbase gear display number 353 cooperates with the wheelbase gear dial groove 343 to intuitively display the specific wheelbase gear.

[0073] The center block is cleverly designed and reasonably structured. Through the structural design of the center block 3, the magnetic force and wheelbase in the center block 3 can be precisely adjusted to meet the requirements of different players. The center block of the magic cube with adjustable magnetic force and wheelbase is equipped with large magnets 331 and small magnets 332 of different sizes in the large and medium magnet installation slots 322 and small magnet installation slots 323 of the center block magnetic force adjustment dial 32, respectively, and cooperates with the magnets installed in the subsequent wheelbase adjustment dial 34, and uses the repulsive force of the same poles of the magnets to replace the elastic force of the spring, so that the center block 3 and the center axis 4 are completely non-contact in the longitudinal direction, which greatly reduces the rotation resistance. Because the number and size of the magnets in the center block magnetic force adjustment dial 32 are different from the magnets installed in the wheelbase adjustment dial 34, the magic cube rotation resistance will change according to the rotation angle, which greatly improves the restoration speed of the magic cube, and both the magnetic force adjustment and the wheelbase adjustment are digitally displayed, and both are adjustable in four gears, which improves the convenience and accuracy of the adjustment.

[0074] Eight corner blocks 1 are mounted on the center block 3 and the edge block 2 (see Figures 1 to 11), the corner block 1 comprises: a corner block seat 11, a corner block shell sheet 12, a corner block magnetic adjustment rod 13, a corner block magnetic adjustment base plate 14, a corner block magnetic adjustment middle plate 15 and a corner block magnetic adjustment dial 16, wherein the corner block magnetic adjustment base plate 14 is installed in the corner block seat 11, the corner block magnetic adjustment middle plate 15 is installed above the corner block magnetic adjustment base plate 14, the corner block magnetic adjustment dial 16 is installed above the corner block magnetic adjustment middle plate 15 and the corner block magnetic adjustment The section center disk 15 is embedded in the corner block magnetic adjustment dial 16, and the top of the corner block adjustment magnetic rod 13 passes through the corner block seat 11 and the bottom of the corner block magnetic adjustment chassis 14 from the bottom to the top and is fixed on the corner block magnetic adjustment center disk 15. The three corner block shell pieces 12 are spliced ​​and installed on the top of the corner block seat 11 and the corner block magnetic adjustment chassis 14, the corner block magnetic adjustment center disk 15 and the corner block magnetic adjustment dial 16 are enclosed in the corner block seat 11. A magnetic force adjustment structure consisting of a corner block magnetic force adjustment chassis 14, a corner block magnetic force adjustment middle plate 15 and a corner block magnetic force adjustment dial 16 is set in the corner block seat 11, and the top of the corner block adjustment magnetic rod 13 is passed through the corner block seat 11 and the bottom of the corner block magnetic force adjustment chassis 14 from the bottom to the top and fixed on the corner block magnetic force adjustment middle plate 15. During actual adjustment, the corner block magnetic force adjustment middle plate 15 can be driven to rotate by rotating the corner block magnetic force adjustment dial 16, thereby driving the corner block magnetic force adjustment rod 13 to rise and fall, and the magnetic distance between the bottom magnet 17 of the corner block magnetic force adjustment rod 13 and the magnet on the center axis of the Rubik's Cube can be adjusted to change the magnetic attraction, thereby realizing the function of variable magnetic force. By rotating the corner block magnetic force adjustment dial 16 in the corner block to achieve magnetic distances of different gears, a multi-level adjustable magnetic force is formed, which is fully compatible with the magnetic force size changes of each gear.

[0075] Reference Figure 6 and Figure 7As shown, the corner block seat 11 includes a corner block seat body 111, and a corner block movable clamping foot 112 is integrally provided at the bottom of the corner block seat body 111. Three corner block installation positioning columns 114 arranged vertically upward are provided in the corner block seat body 111. A corner block corner block magnetic adjustment rod through hole 1110 is provided at the center of the three corner block installation positioning columns 114, which longitudinally penetrates the corner block seat body 111 and the corner block movable clamping foot 112. A corner block magnetic adjustment component installation positioning ring 119 is provided at the periphery of the three corner block installation positioning columns 114. The corner block magnetic adjustment bottom plate 14, the corner block magnetic adjustment middle plate 15 and the corner block magnetic adjustment dial 16 are all installed on the corner block. The block magnetic force adjustment component is installed in the positioning ring 119, and three corner block magnet mounting seats 1111 are arranged in the corner block seat 111. A magnet 17 is installed in each corner block magnet mounting seat 1111. The magnet 17 is used to attract the magnet in the adjacent edge block to provide attraction during resetting. A corner block shell piece mounting fitting groove 118 is arranged on the upper end edge of the corner block seat 111, and a corner block shell piece snap-fitting groove 113 is arranged on one side of the corner block shell piece mounting fitting groove 118. The three corner block shell pieces 12 are snap-fitted to the corner block seat 111 through the corner block shell piece mounting fitting groove 118 and the corner block shell piece snap-fitting groove 113 respectively. During actual assembly, it is only necessary to sequentially install the corner block magnetic force adjustment bottom plate 14, the corner block magnetic force adjustment middle plate 15 and the corner block magnetic force adjustment dial 16 in the corner block magnetic force adjustment assembly installation positioning ring 119, and then cover the three corner block shell pieces 12 on the surface of the corner block seat body 111. The installation is very convenient, and three corner block magnet mounting seats 1111 are specially provided in the corner block to ensure the stable installation position of the magnet 17 in the corner block. A corner block adjustment window 115 is provided on the outer wall of the corner block seat body 111, a gear position digital alignment point 116 is provided below the corner block adjustment window 115, and a corner block adjustment direction indication arrow 117 is provided above the corner block adjustment window 115. By providing the corner block adjustment window 115, the gear position digital alignment point 116 and the corner block adjustment direction indication arrow 117, the gear position can be directly displayed during magnetic force adjustment, and a clear gear position reference is provided for adjustment, which is convenient for adjustment.

[0076] Reference Figure 8As shown, the corner block shell piece 12 includes a corner block shell piece body 121, and a corner block positioning groove 122 and a corner block positioning protrusion 123 are provided on the inner side of the corner block shell piece body 121. Adjacent corner block shell pieces 12 are snap-connected through the cooperation between the corner block positioning groove 122 and the corner block positioning protrusion 123. The corner block shell piece body 121 is also provided with a buckle block 125, a wedge block 126 and a sleeve column 127, wherein the buckle block 125 can be inserted into the corner block shell piece buckle groove 113 on the corner block seat 11, the wedge block 126 can be inserted into the corner block shell piece installation fitting groove 118 on the corner block seat 11, and the sleeve column 127 can be sleeved on the corner block installation positioning column 114 of the corner block seat 11. During actual assembly, it is only necessary to engage the buckle block 125, wedge block 126 and sleeve column 127 of the corner block shell piece 12 with the corner block shell piece buckle groove 113, corner block shell piece installation fitting groove 118 and corner block installation positioning column 114 on the corner block seat 11 respectively, so as to achieve a stable connection between the corner block shell piece 12 and the corner block seat 11. Adjacent corner block shell pieces 12 can be directly engaged and connected through the cooperation between the corner block positioning groove 122 and the corner block positioning protrusion 123, and the assembly is simple and stable.

[0077] Reference Figures 9 and 10As shown, the corner block magnetic force adjustment chassis 14 includes a corner block chassis body 141, which is installed in the corner block magnetic force adjustment component installation positioning ring 119 of the corner block seat 11, and the corner block chassis body 141 is provided with a corner block gear adjustment step bottom tooth 142, and the end edge of the corner block chassis body 141 is provided with a corner block positioning protrusion 143. Among them, the corner block positioning protrusion 143 is used for positioning connection with the corner block magnetic force adjustment dial 16. The corner block magnetic force adjustment middle disk 15 includes a corner block middle disk body 151, the bottom of the corner block middle disk body 151 is provided with corner block gear adjustment step top teeth 155 matching the corner block gear adjustment step bottom teeth 142 on the corner block chassis body 141, the center of the corner block middle disk body 151 is provided with a corner block magnetic adjustment rod clamping hole 152 matching the corner block magnetic adjustment rod 13, and the periphery of the corner block magnetic adjustment rod clamping hole 152 on the corner block middle disk body 151 is provided with a corner block positioning sleeve hole 153 matching the corner block installation positioning column 114 on the corner block seat 11, the corner block magnetic force adjustment middle disk 15 is fixed on the corner block seat 11 through the corner block positioning sleeve hole 153 and the corner block installation positioning column 114 on the corner block seat 11, and the top surface of the corner block middle disk body 151 is provided with annularly distributed corner block dial clamping teeth 154. The top teeth 155 of the corner block gear adjustment step are against the bottom teeth 142 of the corner block gear adjustment step in the corner block magnetic force adjustment chassis 14. During actual adjustment, rotating the top teeth 155 of the corner block gear adjustment step can change the distance between the corner block magnetic force adjustment middle plate 15 and the corner block magnetic force adjustment chassis 14, so that the upper and lower distances of the corner block magnetic force adjustment middle plate 15 can be changed, and then the corner block magnetic adjustment rod 13 can be driven to move up and down, thereby changing the distance between the corner block magnetic adjustment rod 13 and the Rubik's Cube center axis 4, and then the magnetic distance between the bottom magnet 17 of the corner block magnetic adjustment rod 13 and the magnet on the Rubik's Cube center axis 4 can be adjusted to change the magnetic attraction, thereby realizing the function of variable magnetic force. The corner block magnetic adjustment dial 16 includes a corner block dial body 161, a plurality of annularly distributed and upwardly protruding corner block positioning protrusions 162 are arranged in the middle of the corner block dial body 161, and a corner block chassis card slot 163 matching the corner block positioning protrusions 143 on the corner block magnetic adjustment chassis 14 is arranged on the periphery of the corner block positioning protrusions 162, and the corner block middle plate body 151 is embedded and installed in the corner block dial body 161, and a corner block gear display number 164 is arranged on the bottom outer wall of the corner block dial body 161, and a corner block gear adjustment hole 165 is arranged between adjacent corner block gear display numbers 164, and the corner block gear display number 164 can be displayed outwardly through the corner block adjustment window 115 arranged on the corner block seat 11.During actual adjustment, an external magnetic adjustment tool can be used to poke the corner block gear adjustment hole 165 through the corner block adjustment window 115 in the direction indicated by the corner block adjustment direction indication arrow 117, so that the corner block dial body 161 rotates. After the corner block dial body 161 rotates, it drives the corner block middle plate body 151 to rotate. After the corner block middle plate body 151 rotates, it can drive the corner block magnetic adjustment rod 13 to move up and down, thereby changing the distance between the corner block magnetic adjustment rod 13 and the Rubik's Cube center axis 4, thereby realizing the function of variable magnetic force.

[0078] Reference Fig.11 As shown, the corner block magnetic adjustment rod 13 includes a corner block magnetic adjustment rod body 131, and a triangular buckle 133 is provided on the top of the corner block magnetic adjustment rod body 131. The top of the corner block magnetic adjustment rod body 131 is installed in the corner block magnetic adjustment rod clamping hole 152 set on the corner block magnetic force adjustment middle plate 15 and is clamped and connected through the triangular buckle 133. The bottom of the corner block magnetic adjustment rod body 131 is provided with a first magnet seat 132, and the magnet 17 is installed in the first magnet seat 132. During actual assembly, the top of the corner block magnetic adjustment rod body 131 is engaged in the corner block magnetic adjustment rod clamping hole 152 set on the corner block magnetic force adjustment middle plate 15 through the triangular buckle 133, and can move with the corner block magnetic force adjustment middle plate 15. When the corner block magnetic force adjustment middle plate 15 rotates relative to the corner block magnetic force adjustment bottom plate 14, the corner block magnetic force adjustment middle plate 15 can move up or down under the interaction of the corner block gear adjustment step top teeth 155 and the corner block gear adjustment step bottom teeth 142, and then the corner block magnetic adjustment middle plate 15 can be driven to move up and down, thereby changing the distance between the magnet 17 in the first magnet seat 132 in the corner block magnetic adjustment rod 13 and the magnet on the center axis 4 of the magic cube, and realizing the function of variable magnetic force. In the present invention, the corner block gear adjustment step top teeth 155 and the corner block gear adjustment step bottom teeth 142 are set to be adjustable in six gears.

[0079] The corner block is cleverly designed and reasonably structured. By setting an adsorption structure of the corner block magnetic adjustment rod 13 corresponding to the center axis 5 of the Rubik's Cube in the corner block 1, the positioning of the corner block 1 is more stable and accurate during the high-speed rotation of the Rubik's Cube, which greatly reduces the starting thrust of the Rubik's Cube from static to rotation. A magnetic adjustment structure consisting of a corner block magnetic adjustment chassis 14, a corner block magnetic adjustment middle plate 15 and a corner block magnetic adjustment dial 16 is set in the corner block seat 11, and the top of the corner block magnetic adjustment rod 13 is passed through the bottom of the corner block seat 11 and the bottom of the corner block magnetic adjustment chassis 14 from bottom to top and fixed on the corner block magnetic adjustment middle plate 15. During actual adjustment, the corner block magnetic adjustment middle plate 15 can be driven to rotate by rotating the corner block magnetic adjustment dial 16, and the magnetic force of the corner block magnetic adjustment is adjusted by the corner block magnetic adjustment dial 16. The six-speed adjustable distance set between the corner block gear adjustment step top tooth 155 and the corner block gear adjustment step bottom tooth 142 cooperates to drive the lifting of the corner block adjustment magnetic rod 13, and can adjust the magnetic distance between the bottom magnet 17 of the corner block adjustment magnetic rod 13 and the magnet 17 on the center axis 4 of the Rubik's Cube, thereby changing the magnetic attraction force, thereby realizing the function of variable magnetic force. By rotating the corner block magnetic force adjustment dial 16 in the corner block, the magnetic distance of different gears can be achieved, forming a multi-level adjustable magnetic force, which is fully compatible with the magnetic force size changes of each gear.

[0080] Twelve edge blocks 2 that fit into the center block 3 and the corner block 1 (refer to Figure 1 , Figures 12 to 19 As shown), the edge block 2 includes: an edge block seat 21, an edge block shell piece 22, an edge block magnetic adjustment rod 23, an edge block magnetic adjustment base plate 24, an edge block magnetic adjustment middle plate 25 and an edge block magnetic adjustment dial 26, wherein the edge block magnetic adjustment base plate 24 is installed in the edge block seat 21, the edge block magnetic adjustment middle plate 25 is installed above the edge block magnetic adjustment base plate 24, the edge block magnetic adjustment dial 26 is installed above the edge block magnetic adjustment middle plate 25 and the edge block magnetic adjustment middle plate 2 5 is embedded in the edge block magnetic force adjustment dial 26, the edge block magnetic adjustment rod 23 passes through the edge block seat 21 and the bottom of the edge block magnetic force adjustment bottom plate 24 from bottom to top through the edge block magnetic adjustment rod through hole 213 and is fixed on the edge block magnetic force adjustment middle plate 25, and the two edge block shell pieces 22 are spliced ​​and installed on the top of the edge block seat 21 and the edge block magnetic force adjustment bottom plate 24, the edge block magnetic force adjustment middle plate 25 and the edge block magnetic force adjustment dial 26 are enclosed in the edge block seat 21. During actual adjustment, the edge block magnetic force adjustment dial 26 can be rotated to drive the edge block magnetic force adjustment middle disk 25 to rotate, thereby driving the edge block magnetic adjustment rod 23 to rise and fall, and the magnetic distance between the magnet 17 at the bottom of the edge block magnetic adjustment rod 23 and the magnet 17 on the center axis 4 of the Rubik's Cube can be adjusted to change the magnetic attraction, thereby realizing the function of variable magnetic force. By rotating the edge block magnetic force adjustment dial 26 in the edge block 2 to achieve magnetic distances of different gears, a multi-level adjustable magnetic force is formed, which is fully compatible with the magnetic force size changes of each gear.

[0081] Reference Fig.16 and Fig.17As shown, the edge block seat 21 includes an edge block seat body 211, and an edge block movable clamping foot 212 is integrally provided at the bottom of the edge block seat body 211. Two edge block installation positioning columns 216 arranged vertically upward are provided in the edge block seat body 211. A through hole 213 of an edge block magnetic adjustment rod that vertically penetrates the edge block seat body 211 and the edge block movable clamping foot 212 is provided at the center of the two edge block installation positioning columns 216. An edge block magnetic force adjustment component installation positioning ring 217 is provided at the periphery of the two edge block installation positioning columns 216. The edge block magnetic force adjustment chassis 24 and the edge block magnetic force adjustment The middle plate 25 and the edge block magnetic force adjustment dial 26 are both installed in the edge block magnetic force adjustment assembly installation and positioning ring 217. Two edge block magnet mounting seats 219 are provided in the edge block seat 211. Each edge block magnet mounting seat 219 is installed with a magnet 17, which is used to attract the magnet in the adjacent corner block to provide attraction during resetting. Four edge block shell piece installation and positioning buckles 218 are provided in the edge block seat 211. The two edge block shell pieces 22 are respectively installed on the edge block seat 211 by snapping the edge block shell piece installation and positioning buckles 218. During actual assembly, it is only necessary to cover the two edge block shell pieces 22 on the surface of the edge block seat 211, and then fasten the edge block shell pieces 22 by the edge block shell piece 22 installation and positioning buckles 218. The installation is very convenient, and two edge block magnet mounting seats 219 are specially provided in the edge block to ensure the stable installation position of the magnet 17 in the edge block. The outer wall of the edge block seat 211 is provided with an edge block adjustment window 214, and an edge block adjustment direction indicating arrow 215 is provided above the edge block adjustment window 214. By providing the edge block adjustment window 214 and the edge block adjustment direction indicating arrow 215, the gear position can be directly displayed during magnetic force adjustment, and a clear gear position reference can be provided for adjustment, which is convenient for adjustment.

[0082] Reference Fig.18 As shown, the edge block shell piece 22 includes an edge block shell piece body 221, and an edge block positioning groove 223 and an edge block positioning protrusion 222 are provided on the inner side of the edge block shell piece body 221. The two edge block shell pieces 22 are engaged and connected by the cooperation between the edge block positioning groove 223 and the edge block positioning protrusion 222. The edge block shell piece body 221 is also provided with a clamping strip 224, which can be inserted into the edge block seat body 211 and fit with the edge block shell piece installation and positioning buckle 218. In actual assembly, it is only necessary to insert the clamping strip 224 of the edge block shell piece 22 into the edge block seat body 211, and then the edge block shell piece installation and positioning buckle 218 is engaged with the clamping strip 224, so that the edge block shell piece 22 and the edge block seat 21 can be stably connected. Adjacent edge block shell pieces 22 can be directly engaged and connected by the cooperation between the edge block positioning groove 223 and the edge block positioning protrusion 222, so that the assembly is simple and stable.

[0083] Reference Figure 19 to Figure 20As shown, the edge block magnetic force adjustment chassis 24 includes an edge block chassis body 241, which is installed in the edge block magnetic force adjustment assembly installation positioning ring 219 of the edge block seat 21, and the edge block chassis body 241 is provided with edge block gear adjustment step bottom teeth 242, and the edge block chassis body 241 is provided with edge block positioning protrusions 243 on the end edge. Among them, the edge block positioning protrusions 243 are used for positioning connection with the edge block magnetic force adjustment dial 26. The edge block magnetic force adjustment middle plate 25 includes an edge block middle plate body 251, the bottom of the edge block middle plate body 251 is provided with edge block gear adjustment step top teeth 255 matching with the edge block gear adjustment step bottom teeth 242 on the edge block bottom plate body 241, the center of the edge block middle plate body 251 is provided with an edge block magnetic adjustment rod clamping hole 252 matching with the edge block magnetic adjustment rod 23, and the edge block middle plate body 251 is provided with a peripheral portion of the edge block magnetic adjustment rod clamping hole 252. The edge block positioning sleeve hole 253 matches the edge block mounting positioning column 214 on the edge block seat 21, and the edge block magnetic adjustment middle plate 25 is fixed on the edge block seat 21 through the edge block positioning sleeve hole 253 and the edge block mounting positioning column 214 on the edge block seat 21. The top surface of the edge block middle plate body 251 is provided with annularly distributed edge block dial teeth 254, and the edge block dial teeth 254 are used to match the edge block positioning protrusions 262 in the edge block magnetic adjustment dial 26. The edge block gear adjustment step top teeth 255 abut against the edge block gear adjustment step bottom teeth 242 in the edge block magnetic force adjustment chassis 24. During actual adjustment, rotating the edge block gear adjustment step top teeth 255 can change the distance between the edge block magnetic force adjustment middle plate 25 and the edge block magnetic force adjustment chassis 24, so that the upper and lower distances of the edge block magnetic force adjustment middle plate 25 can be changed, thereby driving the edge block magnetic adjustment rod 23 to move up and down, thereby changing the distance between the edge block magnetic adjustment rod 23 and the center axis of the Rubik's Cube, and then adjusting the magnetic distance between the magnet 17 at the bottom of the edge block magnetic adjustment rod 23 and the magnet on the center axis 4 of the Rubik's Cube, changing the magnetic attraction, and thus realizing the function of variable magnetic force. The edge block magnetic force adjustment dial 26 includes an edge block dial body 261, a plurality of edge block positioning protrusions 262 distributed in a ring shape are arranged in the middle of the edge block dial body 261, and an edge block chassis slot 263 matching the edge block positioning protrusions 243 on the edge block magnetic force adjustment chassis 24 is arranged on the periphery of the edge block positioning protrusions 262, and the edge block chassis card slot 263 matching the edge block positioning protrusions 243 on the edge block magnetic force adjustment chassis 24 is arranged, and the edge block middle plate body 251 is embedded and installed in the edge block dial body 261, and a total of five gear positions of edge block gear display protrusions 264 are arranged on the bottom outer wall of the edge block dial body 261, and edge block gear display protrusions 264 between different gear positions are arranged. Edge block gear adjustment holes 265 are arranged between the edge block gear display protrusions 264 between different gears, and the edge block gear display protrusions 264 can be displayed outwardly through the edge block adjustment window 215 set on the edge block seat 21.During actual adjustment, the edge block gear adjustment hole 265 can be poked through the edge block adjustment window 214 in the direction indicated by the edge block adjustment direction indication arrow 215 through an external magnetic adjustment tool, so that the edge block dial body 261 rotates. After the edge block dial body 261 rotates, it drives the edge block middle plate body 251 to rotate. After the edge block middle plate body 251 rotates, it can drive the edge block magnetic adjustment rod 23 to move up and down, thereby changing the distance between the edge block magnetic adjustment rod 23 and the Rubik's Cube center axis 4, thereby realizing the function of variable magnetic force.

[0084] Reference Fig. 20 and Fig.21 As shown, the edge block magnetic adjustment rod 23 includes an edge block magnetic adjustment rod body 231, and a clamping strip protrusion 233 is arranged on the top of the edge block magnetic adjustment rod body 231. The top of the edge block magnetic adjustment rod body 231 is installed in the edge block magnetic adjustment rod clamping hole 252 arranged on the edge block magnetic force adjustment middle plate 25 and is clamped and connected through the clamping strip protrusion 233. The bottom of the edge block magnetic adjustment rod body 231 is provided with a second magnet seat 232, and the magnet 17 is installed in the second magnet seat 232. During actual assembly, the top of the edge block magnetic adjustment rod body 231 is engaged in the edge block magnetic adjustment rod clamping hole 252 set on the edge block magnetic force adjustment middle plate 25 through the clamping bar protrusion 233, and can move with the edge block magnetic force adjustment middle plate 25. When the edge block magnetic force adjustment middle plate 25 rotates relative to the edge block magnetic force adjustment bottom plate 24, the edge block magnetic force adjustment middle plate 25 can move up or down under the interaction of the edge block gear adjustment step top teeth 255 and the edge block gear adjustment step bottom teeth 242, and then the edge block magnetic adjustment rod 23 can be driven to move up and down, thereby changing the distance between the magnet 17 in the second magnet seat 232 of the edge block magnetic adjustment rod 23 and the magnet 17 on the center axis 4 of the magic cube, and realizing the function of variable magnetic force. In the present invention, the edge block gear adjustment step top teeth 255 and the edge block gear adjustment step bottom teeth 242 are set to be adjustable in six gears.

[0085] The edge block 2 is cleverly designed and reasonably structured. By setting an edge block magnetic adjustment rod 23 adsorption structure corresponding to the Rubik's Cube center axis 4 in the edge block 2, the edge block 2 can be positioned more stably and accurately during the high-speed rotation of the Rubik's Cube, greatly reducing the starting thrust of the Rubik's Cube from static to rotation. A magnetic adjustment structure consisting of an edge block magnetic adjustment chassis 24, an edge block magnetic adjustment middle plate 25 and an edge block magnetic adjustment dial 26 is set in the edge block seat 21, and the top of the edge block magnetic adjustment rod 23 is passed through the edge block seat 21 and the bottom of the edge block magnetic adjustment chassis 24 from bottom to top and fixed on the edge block magnetic adjustment middle plate 25. During actual adjustment, the edge block magnetic adjustment dial 26 can be used to drive the edge block magnetic adjustment middle plate 25 to rotate, and the edge block magnetic adjustment dial 26 can be used to adjust the edge block magnetic adjustment middle plate 25. The six-speed adjustable distance set between the top tooth 255 of the block gear adjustment step and the bottom tooth 242 of the edge block gear adjustment step drives the lifting and lowering of the edge block adjustment magnetic rod 23, and can adjust the magnetic distance between the magnet 17 at the bottom of the edge block adjustment magnetic rod 23 and the magnet 17 on the center axis 4 of the Rubik's Cube, change the magnetic attraction, and thus realize the function of variable magnetic force. By rotating the edge block magnetic force adjustment dial 26 in the edge block 2, the magnetic distance of different gears can be achieved, forming a multi-level adjustable magnetic force, which is fully compatible with the magnetic force size change of each gear.

[0086] The center axis positioning magnetic force of the Rubik's Cube with adjustable and replaceable magnetic positioning structure can realize the force between the magnet 17 at the bottom of the edge block 2 and the magnet 17 on the center axis 4 during the high-speed rotation of the Rubik's Cube through the structural design of the center axis 4, the center block 3, the corner block 1 and the edge block 2, which assists the Rubik's Cube to automatically return to its original position, and then locates it to the correct position in combination with the magnet 17 at the bottom of the corner block 1, so that the positioning of the Rubik's Cube during the high-speed rotation is more stable and accurate. The center block 3 adopts two upper and lower annular magnets 17, and uses the repulsive force of the same poles of the magnets to replace the elastic force of the spring, so that the center block 3 and the center axis 4 are completely non-contact in the longitudinal direction, which greatly reduces the rotation resistance. The multi-speed magnetic force adjustment and replacement structure, replaceable magnets and adjustable coordination can adjust the magnetic force to your satisfaction. The center block 3 adopts a multi-speed wheelbase adjustment and replacement structure design, which can adjust or replace the wheelbase suitable for you to meet the needs of various wheelbases.

[0087] The bottom of the edge block 2 of the Rubik's Cube with a magnetic positioning structure and adjustable and replaceable magnetic force for the center axis positioning adopts a magnet 17 to assist in the automatic return design; during high-speed rotation, the force between the magnet 17 at the bottom of the edge block 2 and the magnet 17 set on the center axis 4 assists the Rubik's Cube to return to its original position automatically, and then combined with the magnet 17 at the bottom of the corner block 1 to position it to the correct position, so that during the high-speed rotation of the Rubik's Cube, the positioning is more stable and accurate, and the starting thrust of the Rubik's Cube from static to rotation is greatly reduced; by moving the magnet 17 of the center axis 4 as close to the center of the axis as possible, the magnetic attraction position is moved downward, which greatly increases the rotation torque and greatly reduces the rotation thrust; the traditional magnetic Rubik's Cube method is changed, and the magnetic force is placed at the bottom of the foot of the corner block 1 and the edge block 2, and adsorbed with the corresponding structure of the center axis 4, thereby realizing the large-angle automatic return function and positioning function of the Rubik's Cube.

[0088] The magnetic positioning structure of the center axis positioning magnetic force adjustable and replaceable Rubik's Cube uses a magnetic adjustment component structure composed of a magnetic adjustment chassis, a magnetic adjustment middle plate and a magnetic adjustment dial in the corner block 1 and edge block 2, which can drive the magnetic rod to rise and fall, adjust the magnetic distance, change the magnetic attraction, and thus realize the function of variable magnetic force, achieve magnetic distances of different gears, form multi-level adjustable magnetic force, and fully compatible with the magnetic force size change of each gear; both magnetic force adjustment and wheelbase adjustment use digital display methods to improve the convenience and accuracy of adjustment. And by designing both edge block 2 and corner block 1 as an inner buckle structure, the assembly weight can be reduced, making the entire Rubik's Cube lighter, more stable and reliable.

[0089] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings, so any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force, characterized in that include: A central shaft, the central shaft comprising a shaft seat, the shaft seat is integrally provided with a stepped shaft body extending in six directions, namely, forward, backward, left, right, up and down, and the shaft seat is also integrally provided with eight magnet mounting seats, each of which is located at the center of the intersection of three stepped shaft bodies, and each magnet mounting seat is installed with a magnet; Six center blocks are installed on the stepped shaft body of the center axis. The six center blocks have the same structure and all include a center block seat. A magnetic adjustment dial, a wheelbase adjustment dial and a wheelbase adjustment display plate are installed in the center block seat. The top cover of the outer shell sheet is buckled on the top of the center block seat. The stepped shaft body of the center axis passes through the center block seat, the magnetic adjustment dial and the wheelbase adjustment dial in sequence from bottom to top and is then embedded in the wheelbase adjustment display plate. Eight corner blocks are installed in conjunction with the center block and the edge blocks. The eight corner blocks have the same structure and all include a corner block seat. A corner block magnetic adjustment bottom plate, a corner block magnetic adjustment middle plate and a corner block magnetic adjustment dial are installed in the corner block seat. The top of the corner block magnetic adjustment rod passes through the bottom of the corner block seat and the bottom of the corner block magnetic adjustment bottom plate from bottom to top and is fixed on the corner block magnetic adjustment middle plate. The corner block shell is installed on the top of the corner block seat. There are twelve edge blocks that fit together with the center block and the corner blocks. The twelve edge blocks have the same structure and all include an edge block seat. An edge block magnetic adjustment base plate, an edge block magnetic adjustment middle plate and an edge block magnetic adjustment dial are installed in the edge block seat. The edge block magnetic adjustment rod passes through the bottom of the edge block seat and the edge block magnetic adjustment base plate from bottom to top and is fixed on the edge block magnetic adjustment middle plate. The edge block outer shell is installed on the top of the edge block seat.

2. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 1, characterized in that: The center block seat is provided with a magnetic gear adjustment step bottom tooth, the bottom of the center block magnetic adjustment dial is provided with a magnetic gear adjustment step top tooth, the center block magnetic adjustment dial is installed in the center block seat, and the magnetic gear adjustment step top tooth at the bottom of the center block magnetic adjustment dial is offset against the magnetic gear adjustment step bottom tooth set in the center block seat, the wheelbase adjustment dial is installed in the center block seat and is located above the center block magnetic adjustment dial, the wheelbase adjustment dial is provided with a wheelbase gear adjustment step bottom tooth, the wheelbase adjustment display disk is provided with a wheelbase gear adjustment step top tooth at the bottom, the wheelbase adjustment display disk is installed in the wheelbase adjustment dial, and the wheelbase gear adjustment step top tooth set at the bottom of the wheelbase adjustment display disk is offset against the wheelbase gear adjustment step bottom tooth set in the wheelbase adjustment dial, the outer shell sheet top cover is buckled on the top of the center block seat and shields the center block magnetic adjustment dial, the wheelbase adjustment dial and the wheelbase adjustment display disk in the center block seat.

3. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 2, characterized in that: The center block seat includes a center block seat body, a hollow center column is arranged at the center of the center block seat body, the magnetic gear adjustment step bottom teeth are arranged in a ring shape on the periphery of the center column, and the periphery of the magnetic gear adjustment step bottom teeth is arranged with magnetic gear display numbers, and the center block magnetic adjustment dial includes a magnetic dial body, and the magnetic dial body is equipped with a plurality of large magnet mounting grooves distributed in a circular array with the center of the magnetic dial body as the center, and small magnet mounting grooves are installed between adjacent large magnet mounting grooves, large magnets are installed in the large magnet mounting grooves, and small magnets are installed in the small magnet mounting grooves, the magnetic gear adjustment step top teeth are arranged at the bottom of the center of the magnetic dial body, and the end edge of the magnetic dial body is also provided with a magnetic gear indication arrow.

4. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 3, characterized in that: The wheelbase adjustment dial includes a wheelbase dial body, and a plurality of center block magnet mounting seats that are open downward are arranged on the end edge of the wheelbase dial body, and a large magnet is installed in each center block magnet mounting seat. A center hole is arranged in the center of the wheelbase dial body, and the wheelbase gear adjustment step bottom teeth are arranged on the top surface of the wheelbase dial body and are located at the periphery of the center hole. A wheelbase gear dial slot is arranged on the end edge of the top surface of the wheelbase dial body. The wheelbase adjustment display disk includes a display disk body, and the top surface of the display disk body is provided with wheelbase gear display numbers, and a center axis slot is arranged in the center of the display disk body. The top of the center axis longitudinally penetrates the center block seat, the center block magnetic adjustment dial and the wheelbase adjustment dial from bottom to top in sequence, and is then embedded in the center axis slot of the wheelbase adjustment display disk. The wheelbase gear adjustment step top teeth are arranged at the bottom center of the display disk body.

5. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 1, characterized in that: The corner block seat comprises a corner block seat body, the bottom of the corner block seat body is integrally provided with a corner block movable clamping foot, a plurality of corner block installation and positioning columns arranged vertically upward are arranged in the corner block seat body, a corner block magnetic adjustment rod through hole which longitudinally penetrates the corner block seat body and the corner block movable clamping foot is arranged at the center of the plurality of corner block installation and positioning columns, a corner block magnetic adjustment component installation and positioning ring is arranged at the periphery of the plurality of corner block installation and positioning columns, the corner block magnetic adjustment bottom plate, the corner block magnetic adjustment middle plate and the corner block magnetic adjustment dial are all installed in the corner block magnetic adjustment component installation and positioning ring, three corner block magnet mounting seats are arranged in the corner block seat body, each corner block magnet mounting seat is installed with a magnet, the upper end edge of the corner block seat body is provided with a corner block shell piece installation fitting groove, a corner block shell piece buckling groove is arranged on one side of the corner block shell piece installation fitting groove, and the three corner blocks The shell piece is buckled on the corner block seat body through the corner block shell piece installation fitting groove and the corner block shell piece snap-on groove respectively; a corner block adjustment window is arranged on the outer wall of the corner block seat body, a gear number alignment point is arranged below the corner block adjustment window, and a corner block adjustment direction indication arrow is arranged above the corner block adjustment window; the corner block shell piece includes a corner block shell piece body, a corner block positioning groove and a corner block positioning protrusion are arranged on the inner side surface of the corner block shell piece body, and adjacent corner block shell pieces are snap-connected through the cooperation between the corner block positioning groove and the corner block positioning protrusion; a snap-on block, a wedge block and a sleeve column are also arranged on the corner block shell piece body, wherein the snap-on block can be inserted into the corner block shell piece snap-on groove on the corner block seat, the wedge block can be inserted into the corner block shell piece installation fitting groove on the corner block seat, and the sleeve column can be sleeved on the corner block installation positioning column of the corner block seat.

6. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 5, characterized in that: The corner block magnetic adjustment chassis includes a corner block chassis body, which is installed in the corner block magnetic adjustment component installation positioning circle of the corner block seat, and the corner block chassis body is provided with a corner block gear adjustment step bottom tooth, and the end edge of the corner block chassis body is provided with a corner block positioning protrusion; the corner block magnetic adjustment middle plate includes a corner block middle plate body, and the bottom of the corner block middle plate body is provided with a corner block gear adjustment step top tooth matching the corner block gear adjustment step bottom tooth on the corner block chassis body, and the center of the corner block middle plate body is provided with a corner block magnetic adjustment rod clamping hole matching the corner block magnetic rod, and the periphery of the corner block magnetic adjustment rod clamping hole on the corner block middle plate body is provided with a corner block positioning sleeve hole matching the corner block installation positioning column on the corner block seat, and the corner block magnetic adjustment middle plate is fixed on the corner block seat through the corner block positioning sleeve hole and the corner block installation positioning column on the corner block seat, and the top surface of the corner block middle plate body is provided with annularly distributed corner block dial clamping teeth.

7. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 6, characterized in that: The corner block magnetic adjustment dial includes a corner block dial body, a plurality of corner block positioning protrusions distributed in a ring shape and protruding upward are arranged in the middle part of the corner block dial body, and a corner block chassis slot matching the corner block positioning protrusions on the corner block magnetic adjustment chassis is arranged at the periphery of the corner block positioning protrusions, the corner block middle disk body is embedded and installed in the corner block dial body, and a corner block gear display number is arranged on the bottom outer wall of the corner block dial body, and a corner block gear adjustment hole is arranged between adjacent corner block gear display numbers, and the corner block gear display number can be displayed outwardly through a corner block adjustment window arranged on the corner block seat; the corner block adjustment magnetic rod includes a corner block adjustment magnetic rod body, and a triangular buckle is arranged on the top of the corner block adjustment magnetic rod body, and the top of the corner block adjustment magnetic rod body is installed in the corner block adjustment magnetic rod clamping hole arranged on the corner block magnetic adjustment middle disk and is connected by the triangular buckle, and a first magnet seat is arranged at the bottom of the corner block adjustment magnetic rod body, and a magnet is installed in the first magnet seat.

8. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 1, characterized in that: The edge block seat comprises an edge block seat body, and an edge block movable clamping foot is integrally provided at the bottom of the edge block seat body, and an edge block magnetic adjustment component installation positioning ring is provided in the center of the edge block seat body, and an edge block magnetic adjustment rod through hole which longitudinally penetrates the edge block seat body and the edge block movable clamping foot is provided in the center of the edge block magnetic adjustment component installation positioning ring, the edge block magnetic adjustment chassis is installed in the edge block magnetic adjustment component installation positioning ring, the edge block magnetic adjustment middle plate is installed above the edge block magnetic adjustment chassis, the edge block magnetic adjustment dial is installed above the edge block magnetic adjustment middle plate and the edge block magnetic adjustment middle plate is embedded in the edge block magnetic adjustment dial, the edge block magnetic adjustment rod passes through the edge block magnetic adjustment rod through hole from the bottom of the edge block seat from bottom to top in turn and is fixed on the edge block magnetic adjustment middle plate, the edge block shell piece is installed on the top of the edge block seat and encloses the edge block magnetic adjustment chassis, the edge block magnetic adjustment middle plate and the edge block magnetic adjustment dial in the edge block seat.

9. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 8, characterized in that: The edge block shell piece includes an edge block shell piece body, and an edge block positioning groove and an edge block positioning protrusion are arranged on the inner side of the edge block shell piece body. The two edge block shell pieces are snap-fitted and connected through the cooperation between the edge block positioning groove and the edge block positioning protrusion. The edge block shell piece body is also provided with a clamping strip, which can be inserted into the edge block seat body and fit with the edge block shell piece installation positioning buckle; an edge block adjustment window is arranged on the outer wall of the edge block seat body, and an edge block adjustment direction indicating arrow is arranged above the edge block adjustment window.

10. The magic cube with magnetic positioning structure and adjustable and replaceable central axis positioning magnetic force as claimed in claim 9, characterized in that: The edge block magnetic force adjustment chassis comprises an edge block chassis body, the edge block chassis body is installed in the edge block magnetic force adjustment component installation and positioning ring of the edge block seat, the edge block chassis body is provided with edge block gear adjustment step bottom teeth, and the end edge of the edge block chassis body is provided with edge block positioning protrusions; the edge block magnetic force adjustment middle plate comprises an edge block middle plate body, and the bottom of the edge block middle plate body is provided with edge block gear adjustment step top teeth matching the edge block gear adjustment step bottom teeth on the edge block chassis body The center of the edge block middle disk body is provided with an edge block magnetic adjustment rod clamping hole matching the edge block magnetic adjustment rod, and the edge block middle disk body is provided with an edge block positioning sleeve hole matching the edge block installation positioning column on the edge block seat at the periphery of the edge block magnetic adjustment rod clamping hole, and the edge block magnetic force adjustment middle disk is fixed on the edge block seat through the edge block positioning sleeve hole and the edge block installation positioning column on the edge block seat, and the top surface of the edge block middle disk body is provided with annularly distributed edge block dial clamping teeth; the edge block magnetic adjustment dial includes an edge block magnetic adjustment dial The edge block dial body is provided with a plurality of edge block positioning protrusions distributed in an annular manner in the middle part of the edge block dial body, and the edge block positioning protrusions match the edge block dial teeth, and an edge block chassis slot matching the edge block positioning protrusions on the edge block magnetic adjustment chassis is provided at the periphery of the edge block positioning protrusions, and the edge block middle plate body is embedded and installed in the edge block dial body, and an edge block gear display protrusion for displaying the gear position is provided on the bottom outer wall of the edge block dial body, and an edge block gear adjustment hole is provided between the edge block gear display protrusions between different gear positions, and the edge block gear display protrusion can be displayed outwardly through the edge block adjustment window provided on the edge block seat; the edge block magnetic adjustment rod includes an edge block magnetic adjustment rod body, and a card strip protrusion is provided on the top of the edge block magnetic adjustment rod body, and the top of the edge block magnetic adjustment rod body is installed in the edge block magnetic adjustment rod card hole provided on the edge block magnetic adjustment middle plate and is connected by the card strip protrusion, and a second magnet seat is provided at the bottom of the edge block magnetic adjustment rod body, and a magnet is installed in the second magnet seat.

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