Magic cube ball shaft and charger

Abstract

The utility model discloses a Rubik's cube ball journal which comprises a transmission shaft assembly, the transmission shaft assembly comprises a support, a transmission shaft and an inner shell, a circuit board is installed on the support through a support screw column, and a contact piece is arranged on the circuit board; a clamping shell is fixedly arranged at the bottom end of the transmission shaft, an elastic piece is fixedly installed in the clamping shell, and the elastic piece is attached to the upper surface of the contact piece. The charger comprises a charging shell, a charging circuit board is fixedly installed in the charging shell, a second magnet groove is fixedly formed in the inner edge of the charging shell, and a second magnet is fixedly installed in the second magnet groove; according to the intelligent magic cube, the transmission shaft assembly and the internal structure are installed through the inner shell, installation tightness and sealing performance are improved, the elastic pieces on the transmission shaft rotate the contact pieces to generate pulse signals, and simulation prediction rotation can be conveniently conducted on the intelligent magic cube.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent Rubik's Cube technology, and more specifically, it relates to a Rubik's Cube ball axis. This utility model also relates to a charger. Background Technology

[0002] A smart Rubik's Cube typically refers to a Rubik's Cube that incorporates electronic, sensor, and intelligent algorithm technologies on the basis of a traditional Rubik's Cube, providing richer functions and a better user interaction experience.

[0003] By incorporating modern technology, the smart Rubik's Cube not only enhances the entertainment and educational aspects of the cube but also brings more interaction and challenges, making it suitable for users of all ages. From beginners to professional players, the smart Rubik's Cube provides personalized help and guidance, and continuously records and optimizes player performance, driving Rubik's Cube enthusiasts to constantly improve.

[0004] These smart Rubik's Cubes generally have the following characteristics:

[0005] Automatic Solving Function: The smart cube can automatically solve the cube using built-in sensors and algorithms. By analyzing the color distribution of each face, the system can quickly calculate a solution and automatically rotate each face of the cube until it is restored to its original single-color face state.

[0006] Real-time status monitoring: Built-in sensors can track the rotation status of each face of the Rubik's Cube in real time, transmitting data to a mobile app or computer via Bluetooth or other wireless communication methods. Users can view the rotation status of the Rubik's Cube at each step, or follow the solution steps provided by the app to solve the Rubik's Cube step by step.

[0007] Intelligent guidance: Smart Rubik's Cubes usually come with a smartphone app, allowing users to get real-time guidance. The system adjusts its suggestions based on the user's actions in real time, helping the user solve the Rubik's Cube quickly. The app typically displays the current status and provides optimized steps and hints.

[0008] Game and Challenge Modes: In addition to traditional Rubik's Cube solving functions, smart Rubik's Cubes can also incorporate various game modes. For example, users can solve the cube within a set time limit or take on challenges at different difficulty levels. Furthermore, some smart Rubik's Cubes can simulate various Rubik's Cube variations, such as the 4x4 and 5x5 Rubik's Cubes.

[0009] Intelligent optimization and adaptive control: Through integrated sensors and algorithms, the smart cube can analyze the changes in rotation and state in each round, and provide adaptive optimization strategies during the user's solution process. For example, by identifying whether the user is over-rotating, the smart cube will adjust its movement to reduce unnecessary rotations, thereby improving solution efficiency.

[0010] Multi-platform compatibility and data recording: The smart cube can sync with mobile phones or tablets via Bluetooth, recording the time and steps taken each time the user solves the cube, and generating detailed data reports in the app. Users can view their progress and identify areas for improvement through data analysis.

[0011] However, existing technologies have some problems: existing smart cubes rely on a large number of sensors to detect the drive shaft, resulting in a smaller internal structure and making it easy to cause obstruction when the blocks rotate. Therefore, we propose a cube ball shaft and charger. Utility Model Content

[0012] To address the problems existing in the prior art, the purpose of this utility model is to provide a Rubik's Cube ball axis, including a drive shaft assembly. The drive shaft assembly includes a bracket, a drive shaft, and an inner housing. A battery is fixedly installed on the inner side of the bracket. A bracket column is provided on the bracket, and a circuit board is installed on the bracket column. The circuit board is electrically connected to the battery and has contact pieces. A locking shell is fixedly provided at the bottom end of the drive shaft. A spring is fixedly installed inside the locking shell. The spring fits against the upper surface of the contact piece and slides relative to the contact piece.

[0013] The inner shell is fixed to the support column. The inner shell is provided with a limiting ring. The locking shell is movably located inside the limiting ring. The locking shell is fitted and connected to the inner shell and is rotatable relative to the inner shell.

[0014] Specifically, the circuit board is engaged between the support columns via a positioning slot, and a drive shaft positioning hole is provided in the middle of the circuit board;

[0015] The drive shaft is fixedly provided with a drive shaft positioning post at the center of the inner part of the locking housing, and the drive shaft positioning post is movably located inside the drive shaft positioning hole.

[0016] Specifically, an inner shell is fixedly installed on several of the support columns by screws. Several shell limiting teeth are fixedly provided on the edge of the inner shell. The several inner shells are mutually engaged and connected by several shell limiting teeth. The edge of the inner shell is provided with three first magnet slots, and a first magnet is fixedly installed inside the first magnet slot.

[0017] Specifically, the drive shaft passes through the inner housing, and two limiting posts are fixedly provided on one side of the inner side of the engaging housing. One side of the spring piece is engaged and connected to the two limiting posts.

[0018] Specifically, the outer side of the drive shaft assembly is formed by combining a first edge block and a first center block to form a skewed Rubik's Cube. The inner side of the first edge block is provided with a first connecting plate, and the inner side of the first center block is provided with a second connecting plate. The first edge block is engaged with one end of the drive shaft, and the first center block is engaged with the first connecting plate and the second connecting plate.

[0019] Specifically, the outer side of the drive shaft assembly is formed into a maple leaf cube by combining a second edge block and a second center block. The inner side of the second edge block is provided with a first mounting bracket. The inside of the first mounting bracket is provided with an encoding wheel. One end of the drive shaft is engaged and connected in the encoding wheel. The inner side of the second center block is provided with a second mounting bracket. The second mounting bracket is movably installed between the first mounting brackets.

[0020] Specifically, the circuit board is equipped with a communication module, and the drive shaft assembly has a charging port.

[0021] The charger includes a charging housing, a charging circuit board fixedly installed inside the charging housing, and a second magnet slot fixedly provided on the inner edge of the charging housing, with a second magnet fixedly installed inside the second magnet slot.

[0022] Specifically, the charging housing has a fixed electrode slot in the middle, a charging cable socket on one side of the charging housing, the charging cable socket is electrically connected to the charging circuit board, the charging circuit board is electrically connected to a charging electrode in the middle, the charging electrode is located inside the electrode slot, and a placement slot is provided on the upper edge of the charging housing.

[0023] The technical effects and advantages of this utility model are as follows:

[0024] This invention enables the assembly and installation of a smart Rubik's Cube using a drive shaft assembly, improving the internal compactness of the drive shaft assembly. A battery is installed inside the bracket of the drive shaft assembly to power the smart Rubik's Cube. The drive shaft is connected to a contact piece on a circuit board via a spring. Rotation of the drive shaft generates pulse signals between the spring and the contact piece. The circuit board processes and transmits these pulse signals to a mobile device's app, allowing the app to synchronize the smart Rubik's Cube's rotation in real time.

[0025] Furthermore, the drive shaft assembly and its internal structure are installed through the inner housing, ensuring the tightness of the equipment installation. The inner housing is connected by bracket screws, and the housing limiting teeth on the edge of the inner housing are used to achieve a snap-fit ​​connection between multiple inner housings, improving the sealing of the drive shaft assembly. The drive shaft is used to connect the edge blocks, making it easy to obtain the rotation information of the edge blocks and thus the rotation information of the smart cube.

[0026] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the oblique rotating Rubik's Cube structure provided by this utility model;

[0028] Figure 2 This is a schematic diagram of the maple leaf cube structure provided by this utility model;

[0029] Figure 3 This is a schematic diagram of the partial structure of the oblique rotating Rubik's Cube provided by this utility model;

[0030] Figure 4 This is a schematic diagram of a portion of the structure of the maple leaf cube provided by this utility model;

[0031] Figure 5 This is a schematic diagram of the drive shaft assembly provided by this utility model;

[0032] Figure 6 This is an internal schematic diagram of the drive shaft assembly provided by this utility model;

[0033] Figure 7 This is a schematic diagram of the inner structure of the inner shell provided by this utility model;

[0034] Figure 8 This is a schematic diagram of the rotating shaft connection structure provided by this utility model;

[0035] Figure 9 This is a schematic diagram of the rotating shaft structure provided by this utility model;

[0036] Figure 10 This is a schematic diagram of the charging structure of the rotating shaft assembly provided by this utility model;

[0037] Figure 11 This is a schematic diagram of the charging housing structure provided by this utility model;

[0038] Figure 12 This is a schematic diagram of the internal structure of the charging housing provided by this utility model.

[0039] In the diagram: 1. Angled Rubik's Cube; 101. First edge piece; 102. First center piece; 103. First connecting plate; 104. Second connecting plate; 2. Maple Leaf Rubik's Cube; 201. Second edge piece; 202. Second center piece; 203. Second mounting bracket; 204. First mounting bracket; 3. Drive shaft assembly; 301. Bracket; 302. Bracket column; 303. Inner support positioning block; 304. Circuit board; 305. Contact piece; 306. Drive shaft positioning hole; 307. Inner shell; 308. 309. Screw; 310. First magnet; 311. Drive shaft; 312. First magnet slot; 313. Housing limiting tooth; 314. Engaging housing; 315. Limiting ring; 316. Spring piece; 317. Drive shaft positioning post; 318. Battery; 319. Limiting post; 310. Charging hole; 4. Encoding wheel; 5. Charging housing; 6. Charging cable socket; 7. Anti-slip pad; 8. Charging terminal post; 9. Placement slot; 10. Connecting post; 11. Second magnet slot; 12. Second magnet; 13. Terminal post slot. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.

[0041] like Figures 1 to 10 As shown in the figure, an embodiment of the present invention provides a Rubik's Cube ball axis, including a drive shaft assembly 3. The drive shaft assembly 3 includes a bracket 301, a drive shaft 310, and an inner housing 307. A battery 317 is fixedly installed on the inner side of the bracket 301. A bracket post 302 is provided on the bracket 301. A circuit board 304 is installed on the bracket post 302. The circuit board 304 is electrically connected to the battery 317. A contact piece 305 is provided on the circuit board 304. A locking shell 313 is fixedly provided at the bottom end of the drive shaft 310. A spring piece 315 is fixedly installed inside the locking shell 313. The spring piece 315 is attached to the upper surface of the contact piece 305 and slides relative to the contact piece 305.

[0042] The inner housing 307 is fixed on the support column 302. The inner housing 307 is provided with a limit ring 314. The locking shell 313 is movably located inside the limit ring 314. The locking shell 313 is in close contact with the inner housing 307. The locking shell 313 is set to limit the inner housing 307, maintain the stability of the inner housing 307, and is rotatable relative to the inner housing 307.

[0043] In this embodiment, preferably, the circuit board 304 is connected between the support columns 302 by a positioning groove, and a transmission shaft positioning hole 306 is opened in the middle of the circuit board 304. An inner support positioning block 303 is fixedly installed on one of the circuit boards 304.

[0044] A drive shaft positioning post 316 is fixedly provided at the center of the inner part of the locking housing 313, and the drive shaft positioning post 316 is movably located inside the drive shaft positioning hole 306.

[0045] It should be noted that the drive shaft positioning pin 316 is installed and connected through the drive shaft positioning hole 306. The Rubik's Cube ball axis contacts the circuit board 304 through the drive shaft 310 and the contact piece 305. The drive shaft 310 supports the inner housing 307. The other circuit board 304 is a charging circuit board, which supports the inner housing 307 through the inner support positioning block 303. The inner support positioning block 303 is designed to protect the circuit board 304 and to support and fix the inner housing 307.

[0046] In this embodiment, preferably, an inner shell 307 is fixedly installed on several support columns 302 by screws 308. Several shell limiting teeth 312 are fixedly provided on the edge of the inner shell 307. Several inner shells 307 are mutually engaged and connected by several shell limiting teeth 312. Three first magnet grooves 311 are provided on the edge of the inner shell 307. A first magnet 309 is fixedly installed inside the first magnet grooves 311.

[0047] It should be noted that the inner shell 307 is fixedly installed on the support column 302 by screws 308 to maintain the stability of the inner shell 307, and each inner shell 307 is connected to each other by shell limiting teeth 312. The setting of the first magnet groove 311 and the first magnet 309 facilitates the connection to the external adsorption structure.

[0048] In this embodiment, preferably, the drive shaft 310 passes through the inner housing 307, and two limiting posts 318 are fixedly provided on one side of the inner side of the engaging housing 313, and one side of the spring piece 315 is engaged and connected to the two limiting posts 318.

[0049] It should be noted that the setting of the limiting ring 314 facilitates the locking and installation of the locking shell 313, maintains the installation stability of the locking shell 313, facilitates the stable connection between the spring piece 315 and the contact piece 305, and the setting of the limiting post 318 facilitates the fixed installation of the spring piece 315, maintaining the installation stability of the spring piece 315.

[0050] In this embodiment, preferably, the outer side of the drive shaft assembly 3 is formed into a skewed cube 1 by combining a first edge block 101 and a first center block 102. The inner side of the first edge block 101 is provided with a first connecting plate 103, and the inner side of the first center block 102 is provided with a second connecting plate 104. The first edge block 101 is engaged with one end of the drive shaft 310, and the first center block 102 is engaged with the first connecting plate 103 and the second connecting plate 104.

[0051] The outer side of the drive shaft assembly 3 is formed into a maple leaf cube 2 by combining the second edge block 201 and the second center block 202. The inner side of the second edge block 201 is provided with a first mounting bracket 204. The inside of the first mounting bracket 204 is provided with an encoding wheel 4. One end of the drive shaft 310 is engaged and connected in the encoding wheel 4. The inner side of the second center block 202 is provided with a second mounting bracket 203. The second mounting bracket 203 is movably installed between the first mounting brackets 204.

[0052] It should be noted that by connecting the drive shaft assembly 3 with different edge pieces and center pieces, it is easy to combine them into many Rubik's Cube-like products, such as the slant cube, maple leaf cube, magic tower cube, pyramid cube, etc.

[0053] In this embodiment, preferably, a communication module is provided on the circuit board 304, and a charging hole 319 is provided on the transmission shaft assembly 3;

[0054] It should be noted that the communication module enables the Rubik's Cube ball axis to transmit data on the rotation of the drive shaft assembly 3, and the charging port 319 enables the charging of the battery 317.

[0055] like Figures 11 to 12 As shown, the charger includes a charging housing 5, a charging circuit board is fixedly installed inside the charging housing 5, a second magnet groove 11 is fixedly provided on the inner edge of the charging housing 5, and a second magnet 12 is fixedly installed inside the second magnet groove 11.

[0056] It should be noted that the charging circuit board is configured to adjust the charging voltage, and the second magnet slot 11 and the second magnet 12 are configured to achieve magnetic connection of the drive shaft assembly 3.

[0057] In this embodiment, preferably, the charging housing 5 has a fixed pole groove 13 in the middle, a charging cable socket 6 is opened on one side of the charging housing 5, the charging cable socket 6 is electrically connected to the charging circuit board, the charging circuit board is electrically connected to the middle of the charging pole 8, the charging pole 8 is located inside the pole groove 13, and a placement groove 9 is opened on the upper edge of the charging housing 5.

[0058] It should be noted that the charging cable is connected through the charging cable socket 6, and the terminal slot 13 facilitates the insertion of the charging terminal 8 to charge the drive shaft assembly 3.

[0059] A method for synchronizing signals across the axes of a Rubik's Cube includes the following steps:

[0060] S1. Transmission shaft 310 collects rotation signal: When the transmission shaft 310 rotates, the spring 315 on the transmission shaft 310 contacts the contact piece 305 on the circuit board 304 to generate a rotation signal.

[0061] S2. Data transmission: The rotation signal generated by the circuit board 304 is transmitted to the APP of the mobile device through the communication module.

[0062] In this embodiment, preferably, the following steps are included after S2:

[0063] S3. Processing the rotation signal: Use an error correction algorithm to adjust the motion trajectory of each drive shaft 310 and eliminate synchronization error;

[0064] S4. Delay Compensation Mechanism: When transmitting rotation signals through the communication module, a delay compensation algorithm is used to compensate for the delay in signal transmission, thereby ensuring synchronization accuracy.

[0065] S5. Prediction and Optimization: Optimize future motion through prediction models, prepare for the synchronous action of each drive shaft 310 in advance, and reduce lag in the adjustment process;

[0066] It should be noted that the interjection compensation mechanism is used to compensate for the delay in signal transmission, ensuring synchronization accuracy, and the prediction model is used to optimize future motion, reducing lag in the adjustment process.

[0067] In this embodiment, preferably, the delay compensation algorithm in S5 uses a phase-locked loop to synchronize the clock of the received signal with the local clock.

[0068] Phase difference

[0069]

[0070] in, It is the phase of the received signal. It is the phase of the local clock;

[0071] Phase-locked error:

[0072]

[0073] Control voltage V control (t):

[0074] V control (t)=Kgu(t),

[0075] Where K is a constant representing the gain of the PLL;

[0076] The voltage is used to adjust the local clock and ensure it is synchronized with the received signal.

[0077] It should be noted that the phase-locked loop is used to recover the clock signal from the transmitting end from the received data stream, ensuring that the receiving end can correctly decode and process the received signal. Through the phase-locked loop, an accurate clock signal can be recovered from the received data stream, ensuring accurate data decoding and synchronous transmission.

[0078] In this embodiment, preferably, the calculation formula of the prediction model in S6 is as follows:

[0079]

[0080] Where x(kt) is the prediction of the future state at time t, x ref (kt) is the desired rotational state. It is the weighted quadratic error term of the state error, and Q is the weight matrix. R is the weighted quadratic error term of the control input, R is the weight matrix of the control input, u(kt) is the rotation information at time t, and N is the number of steps in the prediction time domain, that is, when optimizing, the state and control input of the next N steps are considered.

[0081] It should be noted that the predictive model enables the rotation of the smart Rubik's Cube to be predicted, allowing the mobile app to predict the correct steps and assist users in rotating the cube.

[0082] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Rubik's Cube spindle, characterized in that, The system includes a drive shaft assembly (3), which includes a bracket (301), a drive shaft (310), and an inner housing (307). A battery (317) is fixedly installed on the inner side of the bracket (301). A support column (302) is provided on the bracket (301), and a circuit board (304) is installed on the support column (302). The circuit board (304) is electrically connected to the battery (317), and a contact piece (305) is provided on the circuit board (304). A locking shell (313) is fixedly provided at the bottom end of the drive shaft (310). A spring piece (315) is fixedly installed inside the locking shell (313). The spring piece (315) is attached to the upper surface of the contact piece (305) and slides relative to the contact piece (305). The inner housing (307) is fixed on the support column (302). The inner housing (307) is provided with a limiting ring (314). The locking shell (313) is movably located inside the limiting ring (314). The locking shell (313) is fitted and connected to the inner housing (307) and is rotatable relative to the inner housing (307).

2. The Rubik's Cube axis according to claim 1, characterized in that: The circuit board (304) is engaged between the support columns (302) through a positioning groove, and a transmission shaft positioning hole (306) is provided in the middle of the circuit board (304); The drive shaft (310) is fixedly provided with a drive shaft positioning post (316) at the center of the inner part of the locking housing (313), and the drive shaft positioning post (316) is movably located inside the drive shaft positioning hole (306).

3. The Rubik's Cube axis according to claim 1, characterized in that: An inner housing (307) is fixedly installed on several of the support columns (302) by screws (308). Several housing limiting teeth (312) are fixedly provided on the edge of the inner housing (307). The several inner housings (307) are mutually engaged and connected by several housing limiting teeth (312). Three first magnet grooves (311) are provided on the edge of the inner housing (307). A first magnet (309) is fixedly installed inside the first magnet groove (311).

4. The Rubik's Cube ball axis according to claim 1, characterized in that: The drive shaft (310) passes through the inner housing (307), and two limiting posts (318) are fixedly provided on one side of the inner side of the locking shell (313). One side of the spring piece (315) is engaged and connected to the two limiting posts (318).

5. A Rubik's Cube axis according to claim 1, characterized in that: The outer side of the drive shaft assembly (3) is formed by combining a first edge block (101) and a first center block (102) to form a skewed Rubik's Cube (1). The inner side of the first edge block (101) is provided with a first connecting plate (103), and the inner side of the first center block (102) is provided with a second connecting plate (104). The first edge block (101) is engaged with one end of the drive shaft (310), and the first center block (102) is engaged with the first connecting plate (103) and the second connecting plate (104).

6. A Rubik's Cube axis according to claim 1, characterized in that: The outer side of the drive shaft assembly (3) is formed into a maple leaf cube (2) by combining a second edge block (201) and a second center block (202). The inner side of the second edge block (201) is provided with a first mounting bracket (204). The inside of the first mounting bracket (204) is provided with an encoding wheel (4). One end of the drive shaft (310) is engaged and connected in the encoding wheel (4). The inner side of the second center block (202) is provided with a second mounting bracket (203). The second mounting bracket (203) is movably installed between the first mounting brackets (204).

7. A Rubik's Cube axis according to claim 1, characterized in that, A communication module is provided on the circuit board (304), and a charging hole (319) is provided on the transmission shaft assembly (3).

8. A charger that matches the Rubik's Cube ball axis according to any one of claims 1-7, characterized in that: The charger includes a charging housing (5), a charging circuit board is fixedly installed inside the charging housing (5), a second magnet groove (11) is fixedly provided on the inner edge of the charging housing (5), and a second magnet (12) is fixedly installed inside the second magnet groove (11).

9. The charger according to claim 8, characterized in that: The charging housing (5) has a fixed pole groove (13) in the middle, and a charging cable socket (6) is opened on one side of the charging housing (5). The charging cable socket (6) is electrically connected to the charging circuit board. A charging pole (8) is electrically connected in the middle of the charging circuit board. The charging pole (8) is located inside the pole groove (13). A placement groove (9) is opened on the upper edge of the charging housing (5).

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