Mahjong machine score die disc with transposition function and automatic mahjong machine

Abstract

This utility model discloses a mahjong machine scoring dice board with a swapping function and an automatic mahjong machine. The scoring dice board has a placement cavity in each of the four positions, and a swapping block carrying a unique identification code is detachably installed in each placement cavity. A first communication component is located at the bottom of the swapping block, and a second communication component electrically connected to the scoring system is located at the bottom of each placement cavity. When the swapping block is inserted into a placement cavity, the first and second communication components exchange coded signals through physical contact or non-contact. The scoring system is configured to: identify the identification code of the current swapping block based on the coded signal, and drive the display device corresponding to that placement cavity to display the score data corresponding to that identification code. An automatic mahjong machine includes the scoring dice board with a swapping function described in any of the above embodiments. The advantage is that players only need to perform the simple action of "inserting and removing the swapping block" to complete the swapping operation.

Description

Technical Field

[0001] This utility model relates to the field of automatic mahjong machine technology, specifically to a scoring dice plate for a mahjong machine with a position-changing function and an automatic mahjong machine. Background Technology

[0002] In mahjong entertainment and competitive activities, player position switching is a common requirement. For example, it's necessary to balance luck factors during long games, or in standard competitive mahjong, players need to switch positions every two rounds according to the rules. For mahjong machines with scoring functions, when a player switches positions, the original score needs to be synchronized to the display device at the new position. In existing technology, mahjong machines with scoring functions typically use a programmed position switching method, where the player inputs a position number to bind the score to the new position. However, this method has significant drawbacks: players need to master specific operating procedures, which raises the operational threshold for non-professional users. In actual use, the complexity of operation often leads to inconvenience, severely hindering the widespread application of mahjong machines with scoring functions.

[0003] Furthermore, existing transposition scoring techniques rely on software program control, have relatively complex hardware structures, are costly, and carry the risk of incorrect score recording due to operational errors. Therefore, providing a transposition scoring scheme that is easy to operate, low-cost, and highly reliable has become a pressing technical problem to be solved in this field. Summary of the Invention

[0004] The purpose of this invention is to provide a scoring dice plate for a mahjong machine with a position-changing function and an automatic mahjong machine, which can effectively solve the problem of difficulty in synchronizing the original scores after the position is changed in existing automatic mahjong machines.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A mahjong machine scoring dice board with a swapping function includes a board body, a scoring system integrated into the board body, and a display device on the board surface. The board body has a placement cavity in each of the four positions, and a swapping block carrying a unique identification code is detachably installed in each placement cavity. A first communication component is provided at the bottom of the swapping block, and a second communication component electrically connected to the scoring system is provided at the bottom of the placement cavity. When the swapping block is inserted into the placement cavity, the first communication component and the second communication component exchange encoded signals through physical contact or non-contact means. The scoring system is configured to: identify the identity code of the current transposition block according to the encoded signal, and drive the display device corresponding to the placement cavity to display the score data corresponding to the identity code.

[0006] In the above-mentioned scoring dice board for a mahjong machine with a position-swapping function, the scoring system includes a control circuit board, the second communication component is a Hall sensor array disposed on the circuit board, and the first communication component is a permanent magnet assembly embedded in the bottom of the position-swapping block; the spatial arrangement of the permanent magnet assembly constitutes the identity encoding carrier of the position-swapping block.

[0007] In the aforementioned scoring dice board for a mahjong machine with a swapping function, the control circuit board includes a memory and a processor. The memory is configured to store the identity codes of swapping blocks corresponding to different encoding signals and the score data corresponding to different identity codes. The processor is configured to identify the identity code of the current swapping block based on the encoding signal output by the Hall sensor array, and establish a binding relationship between the score data of that position and the identity code of the swapping block. When a swapping block is detected to be inserted into a new position, the score data bound to that identity code is automatically switched to the new position display for output.

[0008] In the aforementioned scoring dice disc of a mahjong machine with a transposition function, the Hall sensor array includes three Hall switch units arranged equidistantly along a straight line; the number and position of the permanent magnet components are configured such that when the transposition block is correctly inserted, only one or two of the three Hall switch units can be triggered.

[0009] In the above-mentioned scoring dice disc for a mahjong machine with a position-swapping function, the center-to-center distance between the three Hall switch units is greater than the maximum size of a single permanent magnet, and the distance between adjacent Hall switch units is equal.

[0010] In the above-mentioned scoring dice plate of a mahjong machine with a position-switching function, an anti-reverse insertion structure is provided between the position-switching block and the placement cavity. The anti-reverse insertion structure includes a guide rib and a guide groove that cooperate with each other and are vertically arranged. One of the guide rib and the guide groove is provided on the side wall of the placement cavity, and the other is provided on the side wall of the position-switching block.

[0011] In the above-mentioned scoring dice plate of a mahjong machine with a position-switching function, the position-switching block is provided with an elastic latch on the side wall away from the anti-reverse insertion structure, and the placement cavity is provided with a locking block in the corresponding side wall; the locking and fixing with the locking block is achieved by the deformation of the elastic latch.

[0012] In the aforementioned scoring dice pan for a mahjong machine with a position-switching function, the top of the position-switching block is provided with an upwardly protruding hand-held part.

[0013] In the aforementioned scoring dice plate for a mahjong machine with a position-changing function, each position-changing block has a position number, color mark, or pattern mark on its top surface.

[0014] An automatic mahjong machine, including the scoring dice plate of a mahjong machine with a position-changing function as described in any of the above embodiments.

[0015] Compared with the prior art, the advantages of this utility model are: By setting pluggable swap blocks at the four positions of the disk, and utilizing the communication connection (physical contact or non-contact method) between the first communication component at the bottom of the swap block and the second communication component at the bottom of the placement cavity, when the player swaps positions, simply plugging and unplugging the swap block will trigger the scoring system to identify the swap block's identity code, thereby synchronizing the score data bound to the identity code to the new position display device. There is no need to manually input the position number or perform complex program operations, which solves the problem of cumbersome program swapping operations in the existing technology and realizes the automation of score migration with the player's position.

[0016] Players can easily swap positions by simply inserting and removing the swap blocks, eliminating the need for specialized training and making it user-friendly for non-professionals. This design transforms complex program logic into intuitive physical operations, significantly lowering the barrier to entry, preventing score recording errors due to operational mistakes, and improving the smoothness and reliability of the game. Standardized placement cavities and swap blocks are located in all four directions of the game board, adapting to the scoring requirements of various mahjong machines. Whether it's recreational mahjong or competitive national standard mahjong, scenarios requiring frequent position swapping can achieve score synchronization through a unified insertion and removal operation. The structure boasts strong compatibility, eliminating the need for separate hardware configuration adjustments for different scenarios.

[0017] Furthermore, the scoring system includes a control circuit board, the second communication component is a Hall sensor array mounted on the circuit board, and the first communication component is a permanent magnet assembly embedded in the bottom of the swap block; the spatial arrangement of the permanent magnet assembly constitutes the identity encoding carrier of the swap block. Non-contact communication is achieved through magnetic field induction between the permanent magnet assembly (first communication component) and the Hall sensor array (second communication component), avoiding the contact problems caused by wear and oxidation of traditional contact connections, and improving the long-term stability of the system. A unique code is formed by the differences in the "position" and "quantity" of the permanent magnet assembly, which can be combined to create multiple code states, meeting the identity encoding recognition requirements of four directions, with high code capacity redundancy. The Hall sensor has a fast response speed; encoding recognition can be completed instantly upon insertion of the swap block, and the score migration is highly real-time, ensuring that the score is updated immediately after the player swaps positions, without affecting the game flow.

[0018] Furthermore, the control circuit board includes a memory and a processor. The memory is configured to store the identity codes of transposition blocks corresponding to different coded signals and the score data corresponding to different identity codes. The processor is configured to identify the identity code of the current transposition block based on the coded signal output by the Hall sensor array, and establish a binding relationship between the score data of that position and the identity code of the transposition block. When a transposition block is detected to be inserted into a new position, the score data bound to that identity code is automatically switched to the new position display. When the player removes the transposition block and inserts it into a new position, the processor detects the change in the Hall sensor array encoding of the new position, immediately retrieves the score data bound to that identity code from the memory, and synchronizes it to the new position display. The entire process does not require the player to operate buttons or input commands; the score automatically migrates with the transposition block, completely solving the cumbersome problem of manually inputting position numbers in existing technologies. The core function of the processor is "code recognition - data binding - migration triggering," and the algorithm logic is simple and can be implemented without high-performance chips. By converting the hardware-encoded signals of the Hall sensor array into an automated process for score binding and migration, a user experience of "plug and play to switch positions, switch positions to synchronize" is achieved with low cost and low computing power. This not only solves the problems of complex operation and easy data loss in existing technologies, but also improves the reliability and scalability of the system through modular control, providing an intelligent and low-threshold technical solution for scoring and switching in mahjong machines.

[0019] Furthermore, the Hall sensor array includes three Hall switch units arranged equidistantly along a straight line; the number and position of the permanent magnet assembly are configured such that when the transposition block is correctly inserted, only one or two of the three Hall switch units can be triggered. The three Hall switch units are arranged equidistantly in a straight line, and by triggering the Hall switches at different positions through the permanent magnet assembly, various combination codes can be formed. Compared to complex encoding chips or multi-contact communication structures, the hardware composition is simple and the cost is low. When the transposition block is inserted into the placement cavity, the permanent magnet can only act on a specific Hall switch unit, preventing the simultaneous activation of multiple unrelated units, effectively preventing false triggering caused by permanent magnet positional misalignment or external interference, and improving system reliability.

[0020] Furthermore, the center-to-center distance between the three Hall switch units is greater than the maximum size of a single permanent magnet, and the distance between adjacent Hall switch units is equal. Because the center-to-center distance between the Hall switch units is greater than the maximum size of a single permanent magnet, a single permanent magnet cannot simultaneously activate two or more Hall switch units.

[0021] Furthermore, an anti-reverse insertion structure is provided between the transposition block and the placement cavity. This structure includes a vertically arranged guide rib and a guide groove that cooperate with each other. One of the guide ribs and the guide groove is located on the side wall of the placement cavity, and the other is located on the side wall of the transposition block. By providing a guide rib (or guide groove) on the side wall of the placement cavity and a corresponding guide groove (or guide rib) on the side wall of the transposition block, the guide rib and guide groove can precisely engage only when the transposition block is inserted in the correct direction, guiding the transposition block to fall vertically into the placement cavity. If the direction is incorrect, the guide rib and guide groove cannot align, and the transposition block cannot be inserted. This physically prevents reverse insertion and avoids misalignment between the permanent magnet (first communication element) and the Hall sensor array (second communication element) due to reverse insertion, which could lead to encoding recognition errors or abnormal score binding.

[0022] Furthermore, the shifting block has an elastic latch on its side wall facing away from the anti-reverse insertion structure, and a locking block is provided in the corresponding side wall of the placement cavity; the elastic latch is deformed to lock and fix it with the locking block. When the shifting block is inserted into the placement cavity, the elastic latch is compressed and deformed. After being inserted into place, the elastic latch engages with the locking block to form a mechanical locking structure. This design can effectively resist external forces such as vibration of the mahjong machine and accidental touches by players during the game, preventing the shifting block from being accidentally pulled out or displaced, ensuring that the first and second communication components always maintain accurate alignment, and avoiding interruption of the encoded signal or failure of score synchronization due to positional deviation.

[0023] Furthermore, the top of the transposition block is provided with an upwardly protruding handle. The protruding structure of the handle provides the player with a clear grip position, avoiding finger slippage or uneven force caused by directly pinching the side of the transposition block.

[0024] Furthermore, each swap block has a location number, color mark, or pattern mark on its top surface. When swapping, players can visually match the target location with the swap block identifier, avoiding picking it up based on memory or guesswork, thus preventing score transfer errors caused by "picking the wrong block" from the source.

[0025] This utility model also discloses an automatic mahjong machine with a scoring dice plate that adopts any of the above-mentioned solutions and has a position-switching function. It integrates the three major advantages of "easy operation, reliable data, and controllable cost" into the overall machine design. It not only solves the problems of complex position-switching operation and high hardware cost in the prior art, but also expands the market application scenarios through modular design. It is a key breakthrough in the upgrade of automatic mahjong machine technology from "program control" to "physical intelligence". Attached Figure Description

[0026] Figure 1 This is a perspective view of a scoring dice disc for a mahjong machine with a position-changing function, according to the present invention. Figure 2This is a schematic diagram of the internal structure of a scoring dice disc for a mahjong machine with a position-swapping function according to this utility model; Figure 3 This is a schematic diagram of the structure of the disc body in this utility model; Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 This is a cross-sectional view of the cavity in this utility model; Figure 6 This is a perspective view of the transposition block in this utility model; Figure 7 The bottom view of the transposition block in this utility model Figure 1 ; Figure 8 The bottom view of the transposition block in this utility model Figure 2 ; Figure 9 The bottom view of the transposition block in this utility model Figure 3 ; Figure 10 The bottom view of the transposition block in this utility model Figure 4 .

[0027] The attached figures are labeled as follows: The components include: disc body 10, placement cavity 11, guide rib 111, elastic latch 112, second communication component 12, display device 20, switching block 30, first communication component 31, guide groove 32, latching block 33, handheld part 34, and control circuit board 40. Detailed Implementation

[0028] A mahjong machine scoring dice board with a swapping function includes a board body 10, a scoring system integrated within the board body 10, and a display device 20 on the board surface. The board body 10 has a placement cavity 11 at each of the four positions. Each placement cavity 11 contains a swapping block 30 carrying a unique identification code, which can be detachably installed. The bottom of the swapping block 30 is provided with a first communication component 31, and the bottom of each placement cavity 11 is provided with a second communication component 12 electrically connected to the scoring system. When the swapping block 30 is inserted into a placement cavity 11, the first communication component 31 and the second communication component 12 exchange encoded signals through physical contact or non-contact. The scoring system is configured to: identify the identification code of the current swapping block 30 based on the encoded signal, and drive the display device 20 corresponding to that placement cavity 11 to display the score data corresponding to that identification code.

[0029] By setting pluggable swap blocks 30 in the four directions of the disk body 10, and utilizing the communication connection (physical contact or non-contact method) between the first communication component 31 at the bottom of the swap block 30 and the second communication component 12 at the bottom of the placement cavity 11, when the player swaps positions, simply plugging and unplugging the swap block 30 will trigger the scoring system to identify the identity code of the swap block 30, thereby synchronizing the score data bound to the identity code to the new position display device 20. There is no need to manually input the position number or perform complex program operations, which solves the problem of cumbersome program swapping operations in the prior art and realizes the automation of score migration with the player's position.

[0030] Players can complete the swapping operation simply by "plugging and unplugging the swapping block 30," without needing to learn professional operating procedures, making it user-friendly for non-professional users. This design transforms complex program logic into intuitive physical operations, significantly lowering the barrier to entry, avoiding score recording errors due to operational mistakes, and improving the smoothness and reliability of the game. The disk body 10 has standardized placement cavities 11 and swapping blocks 30 in all four directions, which can adapt to the scoring requirements of various mahjong machines. Whether it is recreational mahjong or national standard competitive mahjong, which requires frequent swapping, the score can be synchronized through a unified plugging and unplugging operation. The structure has strong compatibility and does not require separate hardware configuration adjustments for different scenarios.

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] See Figures 1 to 10 This invention relates to an embodiment of a mahjong machine scoring dice disc with a position-switching function. The disc includes a disc body 10, a scoring system integrated within the disc body 10, and a display device 20 on the disc surface. The disc body 10 is located at the center of the mahjong machine table. In some mahjong machines, the disc body 10 can move vertically up and down. When the disc body 10 is raised, the shuffling chamber entrance is exposed on the mahjong machine table, facilitating players to push mahjong tiles into the shuffling chamber. In this embodiment, the disc body 10 is disc-shaped. A dice chamber is located at the center of the upper surface of the disc body 10. The dice chamber is transparent and contains dice. A dice button is provided on the disc body 10; pressing the dice button controls the rotation of the dice. The disc body 10 also has four display devices 20. In this embodiment, four display devices 20 are provided, each corresponding to one of the four players. Each of the four display devices 20 faces one of the four players, indicating the current score of a particular player. A scoring system is installed inside the disk body 10. The scoring system includes a control circuit board 40, which contains a memory and a processor. The processor is used to process data, such as adding or subtracting points, while the memory is used to store data. The processor can drive the display to display the stored data after processing.

[0033] A placement cavity 11 is provided at each of the four positions (e.g., east, south, west, and north) of the disk body 10, with each cavity corresponding to one player. Each cavity contains a removable swap block 30 carrying a unique identification code. Each swap block 30 has a first communication component 31 at its bottom, and a second communication component 12 electrically connected to the scoring system at the bottom of each cavity. When a swap block 30 is inserted into a cavity 11, the first communication component 31 and the second communication component 12 establish a communication connection through physical contact or non-contact. The scoring system is configured to: identify the identification code of the current swap block 30 based on the encoded signal, and drive the display device 20 corresponding to that cavity 11 to display the score data corresponding to that identification code. In other words, when a player changes positions, they insert their corresponding swap block 30 into a cavity 11. The first communication component 31 and the second communication component 12 exchange encoded signals through physical contact or non-contact, allowing the scoring system to quickly find the score data corresponding to that identification code and display it on the display device 20 corresponding to that cavity 11.

[0034] Players do not need to learn complex procedures or input directional numbers; they can trigger score synchronization simply by physically inserting and removing the swap block 30, significantly lowering the barrier to entry and making it especially user-friendly for non-professional users. Through the communication connection between the swap block 30 and the placement cavity 11, the scoring system can automatically identify the player's identity code and drive the corresponding display device 20 to update the score, automating the score's movement with the player's position and avoiding errors caused by manual operation.

[0035] If the first communication element 31 and the second communication element 12 are to interact and encode each other via physical contact, the second communication element 12 can be an electrode, and the first communication element 31 can also be a corresponding electrode. Different resistor values ​​are set within each transposition block 30. Under the same circuit conditions, different resistor values ​​will result in different currents or voltages, thus forming the identity code for the displacement of each transposition block 30. After the transposition block 30 is inserted into the placement cavity 11, the scoring system can identify the identity code based on changes in current or voltage, thereby displaying the corresponding score value.

[0036] The above method uses contact-based interactive coded signals, while this embodiment will primarily employ contactless interactive coded signals, as contactless methods are less prone to contact failures. Specifically: The integration system includes a control circuit board 40, a second communication component 12 which is a Hall sensor array mounted on the circuit board, and a first communication component 31 which is a permanent magnet assembly at the bottom of the transposition block 30. The spatial arrangement of the permanent magnet assembly constitutes the identity encoding carrier of the transposition block 30. For example, by changing the number of permanent magnet assemblies, one or two Hall sensors can be triggered simultaneously to generate different identity codes, or the positions of the permanent magnets can be different, such as being above or below the horizontal plane, triggering Hall sensors at different positions to generate different identity codes. Non-contact communication is achieved through magnetic field induction between the permanent magnet assembly and the Hall sensor array. Compared with traditional contact connections, this eliminates contact problems caused by wear and oxidation, improving the long-term stability of the system. Furthermore, magnetic field induction is unaffected by environmental factors such as dust and moisture, ensuring stable transmission of encoded signals even in complex usage scenarios.

[0037] Typically, the game supports four players. By utilizing the differences in the "position" and "quantity" of permanent magnet components, various encoding states can be created (such as triggering one or more Hall switch units), satisfying the identification encoding and recognition requirements from four directions. It offers high encoding capacity redundancy and strong scalability. No complex encoding chips or multi-contact structures are required; identification can be completed solely through the positional correspondence between the permanent magnets and Hall sensors, reducing hardware costs.

[0038] Furthermore, in this embodiment, the Hall sensor array includes three Hall switch units arranged equidistantly along a straight line; the number and position of the permanent magnet components are configured such that when the transposition block 30 is correctly inserted, only one or two of the three Hall switch units can be triggered. For example... Figure 2 , Figures 7 to 10 As shown, three Hall switch units are arranged in a straight line, and permanent magnet components are arranged at different positions within the straight line at the bottom of the transposition block 30, or two permanent magnets are used. With one permanent magnet, it can be on the left, middle, or right; with two permanent magnets, they can be arranged on the left and right sides. Of course, combinations such as left and middle, middle and right are also possible, or even three permanent magnets can be arranged on the left, middle, and right. The three Hall switch units, arranged equidistantly along a straight line, can form various combination codes (such as triggering a single switch or two adjacent switches) by triggering switches at different positions through the permanent magnets. Compared to complex encoding chips or multi-contact structures, only three Hall switches and a simple arrangement of permanent magnets are needed to achieve the identification of four players, simplifying the hardware composition and significantly reducing production costs. By triggering combinations of one or two Hall switches, at least four different encoding states can be formed, fully meeting the identification encoding requirements of the four directions of the mahjong machine, with redundant encoding capacity and controllable costs.

[0039] Furthermore, the center-to-center spacing of the three Hall switch units is greater than the maximum radial dimension of a single permanent magnet, and the spacing between adjacent Hall switch units is equal. This greater spacing prevents a single permanent magnet from simultaneously covering two or more Hall switch units. When the transposition block 30 is inserted into the placement cavity 11, the permanent magnet can only trigger a unique corresponding Hall switch (or two adjacent switches), avoiding simultaneous activation of multiple switches due to permanent magnet position offset or size error. This ensures the uniqueness and determinism of the identity code of each transposition block 30. This design eliminates the possibility of "one permanent magnet triggering multiple switches" from a hardware structure perspective, avoiding signal confusion and ensuring the accuracy of the identity code read by the scoring system, preventing incorrect score binding or migration anomalies.

[0040] The control circuit board 40 also includes a memory and a processor. The memory is configured to store the identity codes of the transposition blocks 30 corresponding to different coded signals and the score data corresponding to different identity codes. The processor is configured to identify the identity code of the current transposition block 30 based on the coded signal output by the Hall sensor array, and establish a binding relationship between the score data of that position and the identity code of the transposition block 30. When the player removes the transposition block 30 and inserts it into a new position, the processor detects the change in coded signal through the Hall sensor array, automatically retrieves the score data bound to that identity code from the memory, and synchronizes it to the new position display. The entire process does not require the player to operate buttons or input commands, realizing "transposition upon insertion and synchronization upon transposition," completely solving the cumbersome problem of manually inputting position numbers in existing technologies. The processor has a fast response speed; it can complete the code recognition and data migration instantly upon inserting the transposition block 30, ensuring that the score update is synchronized with the player's transposition action and does not affect the game flow.

[0041] Based on the above embodiments, such as Figures 4 to 6As shown, the swap block 30 in this embodiment has a rectangular block structure. If the layout of the first communication element 31 in the plane results in an up-down distinction, the swap block 30 needs to be distinguished vertically to prevent accidental triggering of other players' score data. For example, if the first communication element 31 of the first swap block 30 is above the bottom of the swap block 30, and the first communication element 31 of the second swap block 30 is below the bottom of the swap block 30, rotating the first swap block 30 180 degrees in the plane will transform it into the second swap block 30. If the player with the first swap block 30 does not pay attention and inserts the first swap block 30 upside down into the placement cavity 11, the score data of the second swap block 30 will be displayed. To prevent the aforementioned situation, an anti-reverse insertion structure is provided between the transposition block 30 and the placement cavity 11. This structure includes a vertically arranged guide rib 111 and a guide groove 32 that cooperate with each other. One of the guide rib 111 and guide groove 32 is located on the side wall of the placement cavity 11, and the other is located on the side wall of the transposition block 30. In this embodiment, the transposition block 30 has a guide groove 32, and the placement cavity 11 has a guide rib 111. Only when the transposition block 30 is inserted in the correct direction can the two precisely cooperate and guide the transposition block 30 to fall vertically into the placement cavity 11. If the direction is incorrect, the guide structure cannot be aligned, and the transposition block 30 cannot be inserted, thus physically preventing reverse insertion. The anti-reverse insertion structure ensures that the first and second communication components 12 are always precisely aligned, guaranteeing the accuracy of the coded signal interaction.

[0042] Furthermore, although the surface of the disc body 10 is generally flat and the transposition block 30 does not require special fixation within the placement cavity 11, players may experience significant vibrations to the disc body 10 during gameplay. This could cause the transposition block 30 to detach from the placement cavity 11, resulting in scoring inconsistencies. If the transposition block 30 becomes loose during use, the first communication component 31 at its bottom and the second communication component 12 at the bottom of the placement cavity 11 may experience abnormal signal transmission due to changes in spacing or misalignment. Therefore, the shifting block 30 has an elastic latch 112 on its side wall facing away from the anti-reverse insertion structure, and a locking block 33 is provided in the corresponding side wall of the placement cavity 11. The elastic latch 112 is deformed to lock and fix the shifting block 30 to the locking block 33. That is, when the shifting block 30 is inserted into the placement cavity 11, the locking block 33 first forces the elastic latch to deform elastically. After the locking block 33 passes the elastic latch 112, the elastic latch 112 returns to its initial position and abuts against the locking block 33, preventing the locking block 33 from moving upwards, thus restricting the shifting block 30 from leaving the placement cavity 11. This design effectively resists external forces such as mahjong machine vibration and accidental player contact, preventing the shifting block 30 from being accidentally pulled out or displaced, ensuring that the shifting block 30 remains in the correct position during the game. The locking process is completed automatically with the insertion action, without requiring manual pressing or latching by the player. It is convenient to operate and has high locking reliability, avoiding the problem of interrupted encoding signals due to "not being properly inserted".

[0043] Based on the above embodiments, the top of the shift block 30 is provided with an upwardly protruding handhold 34. The protruding structure of the handhold 34 provides a clear grip point, preventing the player from directly pinching the side of the shift block 30, which could lead to slippage or uneven force. Especially in scenarios involving frequent insertion and removal, this can reduce operation time and fatigue. The protruding structure can be integrally molded using injection molding, resulting in low cost. Its ergonomic shape is more user-friendly for elderly players or users with weaker finger strength, thus improving the operating experience.

[0044] Each swap block 30 can also have a directional number, color mark, or pattern mark on its top surface. For example, the top surface of the swap block 30 can be marked with numbers 1, 2, 3, 4, or the words for east, west, south, and north, or four different colors. Players can intuitively match the swap block 30 with the target location, preventing score transfer errors caused by "taking the wrong block", which improves the accuracy of operation, especially in multiplayer competitive scenarios.

[0045] This embodiment also discloses an automatic mahjong machine, including the scoring dice plate with a position-changing function as described in any of the above-mentioned solutions. Players do not need to operate complex buttons or programs; they can complete the position-changing process simply through intuitive physical actions, completely solving the cumbersome problem of manually inputting position numbers in traditional automatic mahjong machines. This is especially suitable for non-professional players in entertainment venues or home settings.

[0046] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A scoring dice disc for a mahjong machine with a position-changing function, comprising a disc body, a scoring system integrated into the disc body, and a display device on the disc surface, characterized in that: The disk body has a placement cavity in each of the four directions, and a transposition block carrying a unique identification code is detachably installed in each placement cavity; the bottom of the transposition block is provided with a first communication component, and the bottom of the placement cavity is provided with a second communication component that is electrically connected to the scoring system; when the transposition block is inserted into the placement cavity, the first communication component and the second communication component exchange encoded signals through physical contact or non-contact means. The scoring system is configured to: identify the identity code of the current transposition block according to the encoded signal, and drive the display device corresponding to the placement cavity to display the score data corresponding to the identity code.

2. The mahjong machine score die disc with transposition function according to claim 1, characterized in that: The scoring system includes a control circuit board, the second communication component is a Hall sensor array mounted on the circuit board, and the first communication component is a permanent magnet assembly embedded in the bottom of the transposition block; the spatial arrangement of the permanent magnet assembly constitutes the identity encoding carrier of the transposition block.

3. A scoring dice board for a mahjong machine with a position-changing function according to claim 2, characterized in that: The control circuit board includes a memory and a processor; The memory is configured to store the identity codes of transposition blocks corresponding to different encoded signals and the score data corresponding to different identity codes; The processor is configured to: identify the identity code of the current transposition block based on the encoded signal output by the Hall sensor array, and establish a binding relationship between the score data of that position and the identity code of the transposition block; When the processor detects that a transposition block has been inserted into a new orientation, it automatically switches the score data bound to that identity code to the new orientation display output.

4. A scoring dice board for a mahjong machine with a position-changing function according to claim 2, characterized in that: The Hall sensor array includes three Hall switch units arranged equidistantly along a straight line; the number and position of the permanent magnet components are configured such that when the transposition block is correctly inserted, only one or two of the three Hall switch units can be triggered.

5. A scoring dice board for a mahjong machine with a position-changing function according to claim 4, characterized in that: The center-to-center distance between the three Hall switch units is greater than the maximum radial dimension of a single permanent magnet, and the distance between adjacent Hall switch units is equal.

6. A scoring dice board for a mahjong machine with a position-changing function according to claim 1, characterized in that: An anti-reverse insertion structure is provided between the transposition block and the placement cavity. The anti-reverse insertion structure includes a guide rib and a guide groove that cooperate with each other and are vertically arranged. One of the guide rib and the guide groove is located on the side wall of the placement cavity, and the other is located on the side wall of the transposition block.

7. A scoring dice board for a mahjong machine with a position-changing function according to claim 6, characterized in that: The transposition block has an elastic latch on the side wall away from the anti-reverse insertion structure, and the placement cavity has a locking block in the corresponding side wall; the elastic latch is locked and fixed with the locking block by deformation.

8. A scoring dice board for a mahjong machine with a position-changing function according to claim 1, characterized in that: The top of the transposition block has an upward-protruding handle.

9. A scoring dice board for a mahjong machine with a position-changing function according to claim 1, characterized in that: Each transpose block has an orientation number, color mark, or pattern mark on its top surface.

10. An automatic mahjong machine, characterized in that: The scoring dice disc for a mahjong machine with a position-swapping function, as described in any one of claims 1 to 9.

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