Three-order pyramid cube and smart central axis

Abstract

The present invention relates to a three-order pyramid Rubik's Cube and an intelligent central axis. The intelligent central axis comprises a central axis body, a first sensor, a second sensor and a main control module. The first sensor comprises a first stator and a first rotor, and the first rotor is configured to rotate synchronously with the inner corner block of the three-order pyramid Rubik's Cube. The second sensor comprises a second stator and a second rotor, and the second rotor is configured to rotate synchronously with the outer corner block of the three-order pyramid Rubik's Cube. The main control module is electrically connected to the first sensor and the second sensor. The main control module obtains a rotation signal of the inner corner block according to the relative rotation between the first rotor and the first stator, and obtains a rotation signal of the outer corner block according to the relative rotation between the second rotor and the second stator. The main control module calculates the state signal of the three-order pyramid Rubik's Cube based on the rotation signals of the inner corner block and the outer corner block, so that the three-order pyramid Rubik's Cube is intelligent.

Description

Technical Field

[0001] The invention relates to the technical field of educational toys, in particular to a three-order pyramid magic cube and an intelligent central axis. Background Art

[0002] The three-order pyramid Rubik's Cube is a tetrahedral special-shaped Rubik's Cube. The three-order pyramid Rubik's Cube includes a central axis, an outer corner block, an inner corner block and an edge block. Among them, the central axis is provided with four connecting rods. The middle part of each connecting rod is rotatably mounted with an inner corner block, and the end part is rotatably mounted with an outer corner block. The bottom of the inner corner block is provided with a concave surface, and three sections of slideways are arranged in the concave surface. The edge block is installed between two adjacent inner corner blocks. The bottom of the edge block is provided with two clamping feet, and the two clamping feet are respectively clamped in the slideways of the two adjacent inner corner blocks, so that the edge block can rotate synchronously with any adjacent inner corner block.

[0003] The smart Rubik's Cube is a new type of electronic Rubik's Cube that uses sensors to sense the state and rotation position of the Rubik's Cube in real time, and processes, stores and sends the real-time state and rotation information to external devices. Among them, the smart center axis of the Rubik's Cube is the core part of the smart Rubik's Cube, which can detect the rotation information of each Rubik's Cube block, obtain the real-time state of the Rubik's Cube as a whole, and is used for real-time communication with electronic devices outside the Rubik's Cube.

[0004] However, the traditional intelligent center axis is applied to the regular Rubik's Cube, and there is no special intelligent center axis for detecting the state of the three-order pyramid Rubik's Cube after rotation. Therefore, the traditional three-order pyramid Rubik's Cube cannot sense the state of the Rubik's Cube after rotation and cannot achieve intelligence. Summary of the invention

[0005] Based on this, it is necessary to provide a three-order pyramid Rubik's Cube and an intelligent central axis to address the problem that the three-order pyramid Rubik's Cube cannot be intelligent. In the intelligent central axis, the main control module obtains the rotation signal of the inner corner block through the first sensor, and obtains the rotation signal of the outer corner block according to the second sensor, so that the intelligent central axis can obtain the Rubik's Cube state after the three-order pyramid Rubik's Cube is rotated, thereby realizing intelligence.

[0006] An intelligent central axis is applied to a three-order pyramid Rubik's Cube, and the intelligent central axis comprises:

[0007] A central axis body, the central axis body comprising a core and a plurality of connecting rods fixedly arranged on the core at intervals;

[0008] A first sensor, the first sensor comprising a first stator and a first rotor, the first stator being fixedly mounted on the central axis body, the first rotor being configured to rotate synchronously with the inner corner block of the three-order pyramid Rubik's Cube, so that the first rotor can rotate with the inner corner block relative to the first stator;

[0009] a second sensor, the second sensor comprising a second stator and a second rotor, the second stator being fixedly mounted on the central axis body, the second rotor being configured to rotate synchronously with the outer corner block of the three-order pyramid Rubik's Cube, so that the second rotor can rotate with the outer corner block relative to the second stator; and

[0010] A main control module, wherein the main control module is installed on the central axis body; the main control module is electrically connected to the first sensor, and the main control module obtains the rotation signal of the inner corner block according to the relative rotation between the first rotor and the first stator; the main control module is electrically connected to the second sensor, and the main control module obtains the rotation signal of the outer corner block according to the relative rotation between the second rotor and the second stator.

[0011] After the above-mentioned intelligent central axis is applied to the three-order pyramid Rubik's Cube, the main control module obtains the rotation signal of the inner corner block according to the relative rotation between the first rotor and the first stator, and obtains the rotation signal of the outer corner block according to the relative rotation between the second rotor and the second stator. The main control module calculates the state signal of the three-order pyramid Rubik's Cube based on the rotation signals of the inner corner block and the outer corner block, so that the three-order pyramid Rubik's Cube is intelligent. The three-order pyramid Rubik's Cube can further realize online Rubik's Cube competition.

[0012] In one embodiment, the first sensor is located in the inner angle block, the first stator is fixedly mounted on the connecting rod, and the first rotor is connected to the inner wall of the inner angle block.

[0013] In one embodiment, one of the first rotor and the inner angle block is provided with a first insertion hole, and the other is provided with a first inserting piece matched with the first insertion hole.

[0014] In one embodiment, the connecting rod is provided with a first step portion and a second step portion, the first step portion and the second step portion are arranged relatively spaced apart, the first stator is fixedly sleeved on the connecting rod and abuts against the first step portion, and the first rotor is rotatably sleeved on the connecting rod and abuts against the second step portion.

[0015] In one embodiment, the second sensor is located in the outer corner block, the second stator is fixedly mounted on the connecting rod, and the second rotor is connected to the inner wall of the outer corner block.

[0016] In one embodiment, one of the second rotor and the outer corner block is provided with a second insertion hole, and the other is provided with a second insertion piece matched with the second insertion hole.

[0017] In one embodiment, the smart central axis further comprises an elastic member, one end of which abuts against the bottom wall of the outer corner block, and the other end of which abuts against the second sensor.

[0018] In one embodiment, the core is a shell having a cavity, and the main control module is installed in the cavity.

[0019] In one embodiment, the connecting rod is a hollow rod, the interior of the hollow rod is connected to the cavity, the second stator is fixedly mounted on the hollow rod, the second stator is connected to a second connecting wire, and the second connecting wire passes through the hollow rod and is electrically connected to the main control module in the cavity.

[0020] A three-order pyramid Rubik's Cube comprises an outer corner block, an edge block, an inner corner block and the above-mentioned intelligent central axis, wherein the outer corner block and the inner corner block are both installed on the connecting rod, and the edge block is clamped between two adjacent inner corner blocks.

[0021] When the above three-order pyramid Rubik's Cube is used, the rotation of the inner corner block can drive the first rotor to rotate synchronously, and then the main control module obtains the rotation signal of the inner corner block according to the relative rotation between the first rotor and the first stator. The rotation of the outer corner block can drive the second rotor to rotate synchronously, and then the main control module obtains the rotation signal of the outer corner block according to the relative rotation between the second rotor and the second stator. In this way, the main control module calculates the state signal of the three-order pyramid Rubik's Cube based on the rotation signals of the outer corner block and the inner corner block, so that the three-order pyramid Rubik's Cube is intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a three-order pyramid Rubik's Cube in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the internal structure of the three-order pyramid Rubik's Cube;

[0024] Figure 3 for Figure 2 A schematic diagram of the structure of the intelligent central axis of the three-order pyramid Rubik's Cube;

[0025] Figure 4 for Figure 3 A partial schematic diagram of the intelligent central axis described in;

[0026] Figure 5 for Figure 4 Exploded view of;

[0027] Figure 6 for Figure 4 A schematic diagram of the structure of the central axis body of the intelligent central axis;

[0028] Figure 7 for Figure 1 A schematic diagram of the structure of the inner corner block of the three-order pyramid Rubik's Cube;

[0029] Figure 8 for Figure 7 An exploded view of the interior angle block described in;

[0030] Fig. 9 for Figure 1 A schematic diagram of the structure of the outer corner blocks of the three-order pyramid Rubik's Cube;

[0031] Fig.10 for Fig. 9 An exploded view of the exterior corner block described in;

[0032] Fig.11 for Figure 1 A schematic diagram of the structure of the edge blocks of the three-order pyramid Rubik's Cube;

[0033] Fig.12 Schematic diagram of the structure of the touch sensor described in the embodiment of the present invention.

[0034] 10. Intelligent central axis, 100. Central axis body, 110. Core, 111. Cavity, 120. Connecting rod, 121. First step portion, 122. Second step portion, 123. Cantilever, 124. Third step portion, 200. First sensor, 210. First stator, 211. First connecting wire, 220. First rotor, 221. First rotor body, 222. First rotor seat, 223. First jack, 300. Second sensor, 310. Second stator, 311. Second connecting wire, 320. Second rotor, 321. First rotor body, 322. Second rotor seat, 323. Second jack, 33 0. Fixing part, 400. Main control module, 500. Elastic part, 610. Power module, 620. Output module, 710. Stator of contact sensor, 711. Common signal circle, 712. Angle signal circle, 720. Rotor of contact sensor, 721. First contact foot, 722. Second contact foot, 20. Inner angle block, 21. Upper shell, 22. Lower shell, 23. First plug-in piece, 24. Slide, 25. Support block, 26. Installation cavity, 27. Intermediate connecting part, 30. Outer angle block, 31. Upper angle shell, 32. Lower angle shell, 33. Second plug-in piece, 34. Installation compartment, 40. Edge block, 41. Card foot. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only. The "first", "second" and "third" described in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0037] like Figure 1 and Figure 2 As shown, a three-order pyramid Rubik's Cube includes an intelligent central axis 10, an inner corner block 20, an outer corner block 30 and an edge block 40. The intelligent central axis 10 includes a central axis body 100, a first sensor 200, a second sensor 300 and a main control module 400. The central axis body 100 includes a core 110 and a plurality of connecting rods 120 fixedly arranged on the core 110 at intervals. Optionally, there are four connecting rods 120. The four connecting rods 120 are at an angle of 120 degrees to each other. The outer corner block 30 and the inner corner block 20 are both installed on the connecting rod 120, and the edge block 40 is clamped between two adjacent inner corner blocks 20. Specifically, the outer corner block 30 and the inner corner block 20 can be rotatably sleeved on the connecting rod 120.

[0038] The first sensor 200 includes a first stator 210 and a first rotor 220. The first stator 210 is fixedly mounted on the central axis body 100, for example, the first stator 210 is optionally fixed on the connecting rod 120 or the core 110. The first rotor 220 is configured to rotate synchronously with the inner corner block 20 of the three-order pyramid Rubik's Cube, so that the first rotor 220 can rotate relative to the first stator 210 with the inner corner block 20. The second sensor 300 includes a second stator 310 and a second rotor 320. The second stator 310 is fixedly mounted on the central axis body 100, for example, the second stator 310 is optionally fixed on the connecting rod 120 or the core 110. The second rotor 320 is configured to rotate synchronously with the outer corner block 30 of the three-order pyramid Rubik's Cube, so that the second rotor 320 can rotate relative to the second stator 310 with the outer corner block 30.

[0039] The main control module 400 is installed on the central shaft body 100. The main control module 400 is electrically connected to the first sensor 200, and the main control module 400 obtains the rotation signal of the inner angle block 20 according to the relative rotation between the first rotor 220 and the first stator 210. The main control module 400 is electrically connected to the second sensor 300, and the main control module 400 obtains the rotation signal of the outer angle block 30 according to the relative rotation between the second rotor 320 and the second stator 310.

[0040] After the intelligent central axis 10 is applied to the three-order pyramid Rubik's Cube, the main control module 400 obtains the rotation signal of the inner corner block 20 according to the relative rotation between the first rotor 220 and the first stator 210; the main control module 400 obtains the rotation signal of the outer corner block 30 according to the relative rotation between the second rotor 320 and the second stator 310. The main control module 400 calculates the state signal of the three-order pyramid Rubik's Cube based on the rotation signals of the inner corner block 20 and the outer corner block 30, so that the three-order pyramid Rubik's Cube is intelligent. The three-order pyramid Rubik's Cube can further realize online Rubik's Cube competition.

[0041] Accordingly, the three-order pyramid Rubik's Cube is intelligentized, and thus can realize online Rubik's Cube competitions. The state of the three-order pyramid Rubik's Cube can be synchronized to the user's electronic devices in real time, and interactive functions can be added, such as making teaching videos of the Rubik's Cube, remote synchronous racing, etc.

[0042] Specifically, combined Figure 2 and Figure 3 , the first stator 210 is fixedly mounted on the connecting rod 120. The first rotor 220 is connected to the inner wall of the inner angle block 20 so that the first rotor 220 and the inner angle block 20 rotate synchronously, and the first sensor 200 can obtain the rotation information of the inner angle block 20. The first sensor 200 is located in the inner angle block 20, making full use of the internal space of the inner angle block 20, without the need for additional installation space, which is conducive to reducing the volume of the intelligent central axis 10 and the three-order pyramid Rubik's Cube. In addition, the inner angle block 20 protects the first sensor 200 located therein, preventing the first sensor 200 from being hit, vibrated and impacted by other structural parts, and ensuring that the first sensor 200 can stably and reliably detect the rotation signal of the inner angle block 20.

[0043] Among them, combined Figure 4 and Figure 5 The first stator 210 is fixedly sleeved on the connecting rod 120, and the first rotor 220 is rotatably sleeved on the connecting rod 120. The first stator 210 and the first rotor 220 both take the connecting rod 120 as the central axis, ensuring that the first rotor 220 will not fly away during the synchronous rotation with the inner angle block 20, and the first stator 210 and the first rotor 220 can be reliably matched, thereby ensuring the use stability and detection accuracy of the first sensor 200.

[0044] Furthermore, combined with Figure 4 , Figure 5 , Figure 7 and Figure 8, one of the first rotor 220 and the inner angle block 20 is provided with a first plug hole 223, and the other is provided with a first plug piece 23 adapted to the first plug hole 223. Optionally, the first rotor 220 is provided with a first plug hole 223, and the inner angle block 20 is provided with a first plug piece 23. In this way, the first rotor 220 and the inner angle block 20 are connected to achieve synchronous rotation, which is convenient for disassembly and assembly without screws. It can be understood that in other embodiments, the first rotor 220 and the inner angle block 20 can also be connected by clamping, bonding, abutting connection or sleeve connection to achieve synchronous rotation.

[0045] Among them, see Figure 4 and Figure 5 The first rotor 220 includes a first rotor body 221 and a first rotor seat 222. The first rotor body 221 is used to cooperate with the first stator 210. The first rotor body 221 is fixedly mounted on one side of the first rotor seat 222. The first rotor seat 222 has a first insertion hole 223 on the other side.

[0046] There are multiple first jacks 223, which are distributed along the circumference of the first rotor 220, so that the installation force of the first rotor 220 is more uniform, ensuring the stability of the position of the first rotor 220 and the stable and reliable performance of the first sensor 200. Figure 7 and Figure 8 The first plug 23 corresponds to the first jack 223. The inner corner block 20 includes an upper shell 21 and a lower shell 22 that are detachably connected, and the upper shell 21 and the lower shell 22 are connected to form a cavity for accommodating the first sensor 200. The inner bottom wall of the lower shell 22 is provided with the first plug 23.

[0047] Specifically, combined Figure 2 , Figure 5 and Figure 6 , the connecting rod 120 is provided with a first step portion 121 and a second step portion 122. The first step portion 121 and the second step portion 122 are arranged at a relative interval, the first stator 210 is fixedly sleeved on the connecting rod 120 and contacts the first step portion 121, and the first rotor 220 is rotatably sleeved on the connecting rod 120 and contacts the second step portion 122. The first stator 210 and the first rotor 220 are both coaxially arranged with the connecting rod 120, so that the first stator 210 and the first rotor 220 will not move relative to each other along the radial direction of the connecting rod 120, and the first stator 210 and the first rotor 220 are located in the interval formed by the first step portion 121 and the second step portion 122, so that the first stator 210 and the first rotor 220 will not move relative to each other along the axis of the connecting rod 120, ensuring that the distance between the first stator 210 and the first rotor 220 is stable, and the first sensor 200 can stably and reliably detect the rotation signal of the inner angle block 20.

[0048] Further, see Figure 5 and Figure 6 The connecting rod 120 is provided with a cantilever 123 , and a first step portion 121 is provided at a free end of the cantilever 123 , so that the first step portion 121 is elastic and movable, which facilitates the disassembly and assembly of the first stator 210 .

[0049] Specifically, combined Figure 2 The second stator 310 is fixedly mounted on the connecting rod 120, and the second rotor 320 is connected to the inner wall of the outer corner block 30, so that the second rotor 320 and the outer corner block 30 rotate synchronously, and the second sensor 300 can obtain the rotation information of the outer corner block 30. The second sensor 300 is located in the outer corner block 30, which makes full use of the internal space of the outer corner block 30, and does not require additional installation space, which is conducive to reducing the volume of the intelligent central axis 10 and the three-order pyramid Rubik's Cube. In addition, the outer corner block 30 protects the second sensor 300 located therein to prevent the second sensor 300 from being interfered by other structural parts.

[0050] Among them, combined Figure 4 and Figure 5 The second stator 310 is fixedly sleeved on the end of the connecting rod 120, and the second rotor 320 is rotatably sleeved on the connecting rod 120. The second stator 310 and the second rotor 320 are distributed with the connecting rod 120 as the central axis, ensuring that the distance between the second stator 310 and the second rotor 320 is stable and the two can be reliably matched.

[0051] Furthermore, combined with Figure 4 , Figure 5 , Fig. 9 and Fig.10 , one of the second rotor 320 and the outer angle block 30 is provided with a second plug hole 323, and the other is provided with a second plug piece 33 adapted to the second plug hole 323. Optionally, the second rotor 320 is provided with a second plug hole 323, and the outer angle block 30 is provided with a second plug piece 33. In this way, the second rotor 320 and the outer angle block 30 are connected to achieve synchronous rotation, which is convenient for disassembly and assembly without screwing.

[0052] It is understandable that in other embodiments, the second rotor 320 and the outer corner block 30 may also be connected by snapping, bonding or sleeve connection to achieve synchronous rotation.

[0053] Among them, see Figure 4 and Figure 5 The second rotor 320 includes a second rotor body 321 and a second rotor seat 322. The second rotor body 321 is used to cooperate with the second stator 310. The second rotor body 321 is fixedly mounted on one side of the second rotor seat 322. The second rotor seat 322 has a second insertion hole 323 on the other side.

[0054] There are multiple second jacks 323, and the multiple second jacks 323 are distributed along the circumference of the second rotor 320, so that the force on the second rotor 320 is more uniform, the second rotor 320 has high stability, and the performance of the second sensor 300 is stable and reliable. Fig. 9 and Fig.10 The second plug piece 33 corresponds to the second plug hole 323 one by one.

[0055] Specifically, the outer corner block 30 includes an upper corner shell 31 and a lower corner shell 32 that are detachably connected, and the upper corner shell 31 and the lower corner shell 32 are connected to form a cavity for accommodating the second sensor 300. The inner bottom wall of the lower corner shell 32 is provided with the second insert 33.

[0056] In one embodiment, a fixing member 330 is disposed between the second stator 310 and the connecting rod 120 , and the second stator 310 is fixed to the connecting rod 120 via the fixing member 330 .

[0057] For example, the fixing member 330 is provided with a lock buckle, and the connecting rod 120 is provided with a lock hole that snaps with the lock buckle; or the fixing member 330 is provided with a lock hole, and the connecting rod 120 is provided with a lock buckle that matches with the lock hole.

[0058] In one embodiment, in combination Figure 2 , Figure 4 and Figure 5 The intelligent central axis 10 further includes an elastic member 500. Optionally, the elastic member 500 is a spring or a rubber pad. One end of the elastic member 500 abuts against the bottom wall of the outer corner block 30, and the other end abuts against the second sensor 300. The elastic member 500 applies an elastic force to the second rotor 320 or the second stator 310 in the second sensor 300, so that the second rotor 320 and the second stator 310 are close to each other and maintain good contact, thereby improving the detection accuracy of the second sensor 300.

[0059] In addition, the elastic member 500 is sleeved on the end of the connecting rod 120 and contacts the outer corner block 30, and can apply a pre-tightening force to the outer corner block 30, and at the same time, the pre-tightening force can be transmitted to the inner corner block 20. During the use of the three-order pyramid Rubik's Cube, the outer corner block 30 and the inner corner block 20 will float up and down along the axial direction of the connecting rod 120. Under the action of the pre-tightening force of the elastic member 500, the three-order pyramid Rubik's Cube has a certain fault tolerance, which can effectively prevent the three-order pyramid Rubik's Cube from falling apart during the rotation process. In addition, the elastic member 500 is arranged in the outer corner block 30, and the elastic force variation range of the elastic member 500 is very small due to the limitation of the internal cavity of the outer corner block 30. Accordingly, the floating range of the outer corner block 30 and the inner corner block 20 becomes smaller, and the degree of tightness changes little, which is conducive to improving the feel of the three-order pyramid Rubik's Cube.

[0060] In one specific embodiment, in combination Figure 2The core 110 is a shell having a cavity 111, and the main control module 400 is installed in the cavity 111. The shell plays the role of storing and protecting the main control module 400.

[0061] For details, please continue to see Figure 2 , the connecting rod 120 is a hollow rod, and the interior of the hollow rod is connected to the cavity 111. Optionally, the first stator 210 is fixedly installed on the hollow rod, and the first stator 210 is connected to a first connecting wire 211, and the first connecting wire 211 passes through the hollow rod and is electrically connected to the main control module 400 in the cavity 111. And / or, the second stator 310 is fixedly installed on the hollow rod, and the second stator 310 is connected to a second connecting wire 311, and the second connecting wire 311 passes through the hollow rod and is electrically connected to the main control module 400 in the cavity 111. The design of the hollow rod facilitates the wiring of the first connecting wire 211 and the second connecting wire 311. The first sensor 200 and the second sensor 300 respectively use the first connecting wire 211 and the second connecting wire 311 to transmit signals with the main control module 400, which has good anti-interference performance, low cost, and small occupied volume.

[0062] In this embodiment, the first sensor 200 and / or the second sensor 300 may be selected from among a contact sensor, an electromagnetic sensor and a photoelectric sensor.

[0063] Among them, see Fig.12The stator 710 of the contact sensor includes a common signal circle 711 and an angle signal circle 712 insulated from the common signal circle 711. The rotor 720 of the contact sensor is a conductive member, and the conductive member includes a first contact foot 721 and a second contact foot 722. The first contact foot 721 is used to contact the common signal circle 711, and the second contact foot 722 is used to contact different positions of the angle signal circle 712 when the outer angle block 30 or the inner angle block 20 rotates, so as to obtain the rotation signal of the outer angle block 30 or the inner angle block 20. When the outer angle block 30 or the inner angle block 20 rotates, the first contact foot 721 is always pressed against the common signal circle 711 and maintains relative sliding contact. The second contact foot 722 is always pressed against the angle signal circle 712 and maintains relative sliding contact. The rotor 720 of the touch sensor will rotate with the outer angle block 30 or the inner angle block 20, and the position of the conductive member on the rotor 720 of the touch sensor will change, so that the connection relationship between the common signal circle 711 and the angle signal circle 712 of the touch sensor will change, thereby generating different signals, so that the main control module 400 can sense the rotation signal of the outer angle block 30 or the inner angle block 20. For example, the stator 710 of the touch sensor also includes a resistor component. When the connection relationship between the common signal circle 711 and the angle signal circle 712 of the touch sensor changes, the common signal circle 711, the angle signal circle 712 and the resistor component cooperate to form a plurality of acquisition paths with different resistance values. According to the different resistance values ​​of the acquisition paths, the rotation relationship between the stator 710 of the touch sensor and the rotor 720 of the touch sensor is sensed.

[0064] For electromagnetic sensors, the rotor of the electromagnetic sensor is a plurality of magnets, each of which has a different magnetic field strength, and the stator of the electromagnetic sensor is a magnetic sensor device. The magnetic sensor device can be selected as a Hall sensor, a magnetic diode, a magnetic diode, a magnetic resistor or a dedicated integrated circuit. When the outer corner block or the inner corner block rotates, the rotor of the electromagnetic sensor rotates synchronously therewith. When the magnetic sensor device passes through different magnets, different voltages are generated. According to the different voltages, the rotation signal of the outer corner block or the inner corner block is obtained.

[0065] For the photoelectric sensor, the rotor of the photoelectric sensor includes a light source and a baffle installed below the light source, the baffle is provided with a notch, and the stator of the photoelectric sensor is a plurality of light receivers. When the baffle rotates with the outer corner block or the inner corner block, the notch rotates to align with different light receivers, and the light receivers can receive the light from the light source and obtain the rotation signal of the outer corner block or the inner corner block.

[0066] In this embodiment, the main control module 400 includes a processing unit, a control unit and a communication unit. The processing unit is used to convert the rotation signals of the outer corner block 30 and the inner corner block 20 into the state signal of the three-order pyramid Rubik's Cube. Specifically, the processing unit can obtain the state of each Rubik's Cube layer before and after rotation according to the rotation signals of the outer corner block 30 and the inner corner block 20, and then obtain the state signal of the entire Rubik's Cube. The control unit is electrically connected to the processing unit and the communication unit respectively. The communication unit can be selected as a wireless communication unit, such as a Bluetooth unit, a WiFi unit, a 2.4G unit or an NFC unit. The communication unit is used to control the control unit and the peripheral device to transmit data, thereby realizing network communication, network teaching, network training or network competition, and specifically can realize real-time synchronous control of the virtual Rubik's Cube, electronic blind twisting, timing, restoration step reproduction, shortest restoration route prompt, and statistical functions.

[0067] It can be understood that in other embodiments, the main control module 400 can convert the rotation signals of the outer corner block 30 and the inner corner block 20 into status signals of the three-order pyramid Rubik's Cube with the help of an external processing device, and the external processing device then transmits the status signal of the three-order pyramid Rubik's Cube back to the main control module 400, thereby reducing the volume of the main control module 400 and reducing the space occupied by the main control module 400 in the cavity 111.

[0068] Further, see Figure 2 At least one of a power module 610 , an output module 620 and a motion sensing module is also installed in the cavity 111 .

[0069] The power module 610 is electrically connected to the main control module 400, and is used to provide power to the main control module 400. The power module 610 can also provide power to other electrical components, such as the first sensor 200, the second sensor 300, and the motion sensing module.

[0070] The output module 620 is electrically connected to the main control module 400. The main control module 400 drives the output module 620 to generate a corresponding output mode according to the status signal of the three-order pyramid Rubik's Cube, thereby increasing the interaction between the Rubik's Cube and the player. For example, the main control module 400 obtains the situation mode of the three-order pyramid Rubik's Cube according to the status signal of the three-order pyramid Rubik's Cube, such as the start-up mode, the recovery completion mode, or the alarm mode of insufficient remaining time. Among them, the output module 620 can be selected as a light-emitting element, a sound-emitting element, or a vibration element. The light-emitting element expresses a specific situation mode with light. The vibration element can be selected as an electromechanical drive element, and the electromechanical drive element expresses a specific situation mode with vibration. The sound-emitting element can be selected as a buzzer.

[0071] The motion sensing module is electrically connected to the main control module 400. The motion sensing module is used to turn on or off the main control module 400, and to sense the overall movement amount and overall flip angle of the three-order pyramid Rubik's Cube. Optionally, the motion sensing module is an acceleration sensor, a vibration switch or a touch switch. When the three-order pyramid Rubik's Cube is picked up by the player, the motion sensing module turns on the main control module 400, so that the main control module 400 starts working. When the three-order pyramid Rubik's Cube is put down by the player, the motion sensing module turns off the main control module 400, so that the main control module 400 enters a dormant state.

[0072] In addition, when the motion sensing module is an acceleration sensor, a geomagnetic sensor or a gyroscope, the motion sensing module can sense the overall movement and the overall flipping angle of the three-order pyramid Rubik's Cube, and then sense the real-time spatial posture of the three-order pyramid Rubik's Cube, making it convenient for players to view the real-time spatial posture of the three-order pyramid Rubik's Cube through the display with the same viewing angle.

[0073] The three-order pyramid Rubik's Cube of this embodiment has four outer corner blocks 30, four inner corner blocks 20 and six edge blocks 40. Three slideways 24 are provided at the bottom of the inner corner blocks 20, and two clamping feet 41 are provided at the bottom of the edge blocks 40. The clamping feet 41 can be clamped in the slideways 24. The edge block 40 is installed between two adjacent inner corner blocks 20, and one clamping foot 41 of the edge block 40 is clamped in the slideway 24 of one of the inner corner blocks 20, and the other clamping foot 41 is clamped in the slideway 24 of the other inner corner block 20. The slideways 24 on any three inner corner blocks 20 that are in the same plane are combined to form a circular arc surface slideway, and the clamping feet 41 can slide along the circular arc surface slideway.

[0074] Specifically, the outer corner block 30 is rotatably connected to the top of the inner corner block 20. Figure 7 and Fig. 9 The bottom of the outer corner block 30 is provided with a mounting chamber 34, and the top of the inner corner block 20 is provided with a mounting chamber 26. The mounting chamber 34 is rotatably sleeved in the mounting chamber 26.

[0075] Optionally, the internal space of the installation chamber 34 may be used for installing the second sensor 300 and the elastic member 500 .

[0076] In this embodiment, the inner corner block 20 is rotatably mounted on the connecting rod 120. For example, in combination with Figure 6 and Figure 8 The connecting rod 120 is provided with a third step 124, the bottom of the inner angle block 20 is provided with a through hole for the connecting rod 120 to pass through, and the side wall of the through hole is provided with a support block 25, which abuts against the third step 124. The design of the third step 124 facilitates the installation and positioning of the inner angle block 20.

[0077] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An intelligent central axis, applied to a three-order pyramid Rubik's Cube, characterized in that: The intelligent central axis comprises: A central axis body, the central axis body comprising a core and a plurality of connecting rods fixedly arranged on the core at intervals; a first sensor, the first sensor being located in the inner angle block, the first sensor comprising a first stator and a first rotor, the first stator being fixedly mounted on the connecting rod, and the first rotor being connected to the inner wall of the inner angle block, so that the first rotor can rotate with the inner angle block relative to the first stator; a second sensor, the second sensor being located in the outer corner block, the second sensor comprising a second stator and a second rotor, the second stator being fixedly mounted on the connecting rod, the second rotor being connected to the inner wall of the outer corner block so that the second rotor can rotate with the outer corner block relative to the second stator, and the second rotor and the first rotor being coaxially arranged with the connecting rod as the central axis; and A main control module, wherein the main control module is installed on the central axis body; the main control module is electrically connected to the first sensor, and the main control module obtains the rotation signal of the inner corner block according to the relative rotation between the first rotor and the first stator; the main control module is electrically connected to the second sensor, and the main control module obtains the rotation signal of the outer corner block according to the relative rotation between the second rotor and the second stator.

2. The intelligent central axis according to claim 1, characterized in that: One of the first rotor and the inner angle block is provided with a first insertion hole, and the other is provided with a first inserting piece matched with the first insertion hole.

3. The intelligent central axis according to claim 1, characterized in that: The connecting rod is provided with a first step portion and a second step portion, the first step portion and the second step portion are arranged relatively spaced apart, the first stator is fixedly sleeved on the connecting rod and abuts against the first step portion, and the first rotor is rotatably sleeved on the connecting rod and abuts against the second step portion.

4. The intelligent central axis according to claim 1, characterized in that: One of the second rotor and the outer corner block is provided with a second insertion hole, and the other is provided with a second inserting piece matched with the second insertion hole.

5. The intelligent central axis according to claim 1, characterized in that: The intelligent central axis further comprises an elastic member, one end of which abuts against the bottom wall of the outer corner block, and the other end of which abuts against the second sensor.

6. The intelligent central axis according to any one of claims 1 to 5, characterized in that: The core is a shell with a cavity, and the main control module is installed in the cavity.

7. The intelligent central axis according to claim 6, characterized in that: The connecting rod is a hollow rod, the interior of the hollow rod is connected to the cavity, the second stator is fixedly mounted on the hollow rod, the second stator is connected to a second connecting wire, and the second connecting wire passes through the hollow rod and is electrically connected to the main control module in the cavity.

8. A three-order pyramid Rubik's Cube, characterized in that: It comprises an outer corner block, an edge block, an inner corner block and the intelligent central axis as described in any one of claims 1 to 7, wherein the outer corner block and the inner corner block are both installed on the connecting rod, and the edge block is clamped between two adjacent inner corner blocks.

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