A new mahjong machine and shuffling method

Abstract

The application relates to the mahjong machine technical field, and particularly discloses a novel mahjong machine and a shuffling method. The novel mahjong machine comprises a center lifting mechanism, a shuffling large disc and a driving motor, a first one-way transmission part and a first transmission mechanism are arranged between the driving motor and the center lifting mechanism, and a second one-way transmission part and a second transmission mechanism are arranged between the driving motor and the shuffling large disc. In the embodiment, the shuffling large disc and the center lifting mechanism are driven by one driving motor, the shuffling large disc rotation and the center lifting mechanism work are respectively realized by the forward and reverse rotation of the driving motor, the utilization rate of the driving motor is improved, and the number and cost of the motor are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to mahjong machine technical field, specifically to a new mahjong machine and shuffling method. BACKGROUND

[0002] The existing automatic mahjong machine has a shuffling tray and a center lifting mechanism. In the prior art, the shuffling tray is provided with a shuffling motor, and the center lifting mechanism is provided with a lifting motor. The number of motors is large, the cost is high, and the energy consumption is large.

[0003] The common structure of the shuffling tray is that the middle part is the highest, and gradually decreases from the middle part to the edge. Since the center part of the mahjong machine is provided with the center lifting mechanism, there is no space to install the shuffling motor. Therefore, the shuffling motor is usually installed below the shuffling tray. Since the driving force required by the shuffling tray is large, the power and size of the motor are also large. The installation position of the shuffling motor leads to a thicker thickness and a larger volume of the mahjong machine.

[0004] The center lifting mechanism of the mahjong machine usually includes a dice tray, a lifting rod connected with the dice tray, a lifting motor, and a transmission mechanism between the lifting motor and the lifting rod. In the prior art, the lifting motor is usually designed horizontally, that is, the axis of the output shaft of the lifting motor is perpendicular to the lifting direction of the lifting rod. The transmission mechanism includes a swing rod connected with the output shaft of the lifting motor. During the swinging process of the swing rod with the output shaft of the lifting motor, the other end drives the lifting rod to lift.

[0005] The defects of the center lifting mechanism with the above structure are that the lifting motor is designed horizontally, and its position is located outside the projection position of the lifting rod. The space occupied by the lifting rod and the lifting motor is large. The driving force applied to the lifting rod by the swing rod is located outside the lifting rod, so that the lifting rod and the dice tray have an overturning moment during the lifting process, the smoothness is poor, and the power consumption is large. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a new mahjong machine with a center lifting mechanism and a shuffling tray sharing a driving motor, so as to solve the technical defects caused by the independent driving motors of the center lifting mechanism and the shuffling tray in the prior art.

[0007] In order to solve the above technical problems, the technical scheme provided by the present application is as follows: a new mahjong machine, at least comprising:

[0008] a center lifting mechanism, the center lifting mechanism at least comprising a fixed lifting seat, a lifting rod axially movably connected with the lifting seat, and a dice tray fixedly connected to the top end of the lifting rod;

[0009] a shuffling tray, the shuffling tray being coaxially arranged with the center lifting mechanism;

[0010] a driving motor, which is vertically arranged, and an output shaft of the driving motor is coaxially arranged below the lifting rod;

[0011] a first transmission mechanism, which is arranged between the driving motor and the lifting rod;

[0012] a second transmission mechanism, which is arranged between the driving motor and the shuffling tray;

[0013] a first one-way transmission member, which is mounted on the output shaft of the driving motor and connected with the first transmission mechanism; and

[0014] a second one-way transmission member, which is mounted on the output shaft of the driving motor and connected with the second transmission mechanism, and the power transmission direction of the second one-way transmission member is opposite to that of the first one-way transmission member.

[0015] In a preferred embodiment, the first transmission mechanism comprises at least a vertical cam, the lower end of the vertical cam is connected with the first one-way transmission member, the upper end face of the vertical cam is provided with a cam track surface with varying height in the circumferential direction, and the lifting rod is provided with a support portion for contact and cooperation with the cam track surface.

[0016] In a preferred embodiment, a spring is arranged between the lifting seat and the lifting rod and configured to be in an energy storage state when the lifting rod is in a high position.

[0017] In a preferred embodiment, the inner wall of the lifting seat is provided with a spring accommodating cavity, the upper end of the spring accommodating cavity is provided with a limiting cavity bottom, the lower end of the spring accommodating cavity is open, and the side of the spring accommodating cavity facing the lifting rod is provided with an opening; the lower end of the lifting rod is provided with a lug matched with the spring accommodating cavity.

[0018] In a preferred embodiment, the second transmission mechanism comprises:

[0019] a driving gear connected with the second one-way transmission member;

[0020] a driven gear, which is arranged in at least one and engaged with the driving gear; and

[0021] an inner gear ring arranged at the bottom of the shuffling tray and engaged with the driven gear.

[0022] A preferred embodiment further comprises a card scraper, which comprises a card scraping seat and a scraping arm arranged on the periphery of the card scraping seat, and a sleeve arranged on the outside of the lifting seat is arranged on the inside of the card scraping seat, and the card scraper is rotatably connected to the lifting seat.

[0023] A preferred embodiment, the card scraper and the shuffling tray are provided with a third transmission mechanism, the third transmission mechanism at least comprises a first transmission gear and a second transmission gear / ring gear meshing with the first transmission gear, the second transmission gear / ring gear is arranged on the card scraping seat, the second transmission gear / ring gear is provided with a clearance position disengaged from the first transmission gear, and the first transmission gear is coaxially arranged with the driven gear.

[0024] A preferred embodiment, the card scraper and the lifting seat are further provided with a motion separation mechanism, the motion separation mechanism comprises:

[0025] A first clamping groove is arranged on the sleeve;

[0026] A second clamping groove is arranged on the lifting seat and has the same height as the first clamping groove;

[0027] A connecting rod is provided with a hinge part in the middle, one end of the connecting rod is provided with a clamping block adapted to the first clamping groove and the second clamping groove, and a clamping spring is arranged between the other end of the connecting rod and the inner wall of the lifting seat; and

[0028] A pressing protrusion is arranged on the outer wall of the vertical cam and is used to press the end of the connecting rod provided with the clamping spring.

[0029] A preferred embodiment, the clamping block is adapted to the first clamping groove and the second clamping groove, and the first transmission gear is located in the clearance position of the second transmission gear / ring gear.

[0030] The new mahjong machine of the embodiment has the following beneficial effects compared with the prior art:

[0031] (1) The shuffling tray and the central lifting mechanism are driven by one driving motor, and the rotation of the shuffling tray and the operation of the central lifting mechanism are realized by the forward and reverse rotation of the driving motor, which improves the utilization rate of the driving motor, reduces the number and cost of the motor.

[0032] (2) The common driving of the shuffling tray and the central lifting mechanism makes the structure of the mahjong machine simpler, reduces the number of parts, simplifies the assembly process, improves the production efficiency, simplifies the control system, and reduces the failure rate of the mahjong machine.

[0033] (3) The driving motor is vertically arranged, and the driving motor is located at the center position. In this way, the height of the shuffling tray can be effectively reduced, and the thickness of the mahjong table is reduced, so that the mahjong machine is more light and thin, and the volume of the mahjong machine is reduced, and the packaging and transportation costs are reduced.

[0034] (4) The driving motor is coincident with the projection of the lifting rod. In the projection direction, the space occupied is smaller, so that the space utilization of the mahjong machine is higher, the structure is more compact, and the volume is smaller.

[0035] (5) The card scraper is arranged to be rotatable, breaking the traditional fixed design. In the initial stage of shuffling, after the mahjong tiles slide onto the surface of the shuffling tray, the scraping arm of the card scraper rotates with the shuffling tray, and part of the mahjong tiles will rotate with the shuffling tray, delaying the sliding speed of part of the mahjong tiles in the mahjong tile stack to the upper tile port. Only a part moves to the upper tile port, so that the mahjong tiles at the upper tile port will not be stacked in large quantities, and the efficiency of feeding the upper tile port is improved.

[0036] A shuffling method of the new mahjong machine, at least comprising the following steps:

[0037] S10: Start the driving motor, and drive the dice tray to rise from the low position to the high position through the first one-way transmission and the first transmission mechanism. When the dice tray is at the high position, press the convex part on one end of the connecting rod provided with the spring, and drive the clamping block to disengage from the first clamping groove.

[0038] S20: The driving motor rotates reversely relative to S10, and drives the shuffling tray to rotate through the second one-way transmission and the second transmission mechanism. After the shuffling tray drives the card scraper to rotate in the same direction through the friction force between them for a certain angle, the positions of the first clamping groove and the second clamping groove are staggered, and the second transmission gear / teeth ring rotates to mesh with the first transmission gear.

[0039] S30: The driving motor rotates reversely relative to S20, and drives the dice tray to descend from the high position to the low position through the first one-way transmission and the first transmission mechanism.

[0040] S40: The driving motor rotates reversely relative to S30, and drives the shuffling tray to rotate through the second one-way transmission and the second transmission mechanism. The shuffling tray drives the card scraper to rotate through the third transmission mechanism. The rotation direction of the card scraper is the same as that of the shuffling tray, and the rotation speed of the card scraper is less than that of the shuffling tray.

[0041] S50: The card scraper rotates one circle to engage the clamping block with the first clamping groove, and the first transmission gear disengages from the second transmission gear / teeth ring through the avoidance position. The shuffling tray continues to rotate to the end of shuffling.

[0042] The shuffling method has the following advantages: in the initial stage of shuffling, the scraping arm of the card scraper rotates in the same direction as the shuffling tray, and the rotating speed is less than that of the shuffling tray, so that the relative speed difference generates a certain resistance to the mahjong tiles, blocks and guides the mahjong tiles to slide to the bottom, but in this process, the resistance is relatively small, the deformation of the scraping arm is smaller, and the driving motor torque of the shuffling tray is smaller, thereby saving cost and prolonging service life; the upper tile port does not cause accumulation, the resistance to the free end of the scraping arm is small, the deformation of the free end of the scraping arm is small, and the noise generated in the rotating process is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 Fig. 1 is a schematic view of the connection structure of the center lifting mechanism and the shuffling tray in the new mahjong machine of the embodiment;

[0044] Figure 2 Fig. 2 is a schematic view of the structure of the center lifting mechanism in the new mahjong machine of the embodiment; Figure 1

[0045] Figure 3 Fig. 3 is an exploded view of the connection structure of the center lifting mechanism and the shuffling tray in the new mahjong machine of the embodiment;

[0046] Figure 4 Fig. 4 is a schematic view of the structure of the center lifting mechanism in the new mahjong machine of the embodiment;

[0047] Figure 5 Fig. 5 is an exploded view of the center lifting mechanism in the new mahjong machine of the embodiment;

[0048] Figure 6 Fig. 6 is a front view of the center lifting mechanism in the new mahjong machine of the embodiment, in which the dice tray is located at a high position;

[0049] Figure 7 Fig. 7 is a sectional view of the center lifting mechanism shown in Fig. 6; Figure 6

[0050] Figure 8 Fig. 8 is a front view of the center lifting mechanism in the new mahjong machine of the embodiment, in which the dice tray is located at a low position;

[0051] Figure 9 Fig. 9 is a sectional view of the center lifting mechanism shown in Fig. 8; Figure 8

[0052] Fig. 10 is a schematic view of the structure of the lifting seat in the new mahjong machine of the embodiment; Figure 10

[0053] Fig. 11 is a schematic view of the structure of the lifting rod in the new mahjong machine of the embodiment; Figure 11

[0054] Figure 12 ​​​The structure diagram of the vertical cam in the new mahjong machine of the embodiment;

[0055] Figure 13 The connection diagram of the second transmission mechanism in the embodiment;

[0056] Figure 14 The state diagram of the motion separation mechanism in the embodiment, wherein the clamping block and the first clamping groove are disengaged;

[0057] Figure 15 The state diagram of the motion separation mechanism in the embodiment, wherein the clamping block and the first clamping groove are in engagement;

[0058] Figure 16 The connection diagram of the motion separation mechanism, the vertical cam and the lifting seat in the embodiment;

[0059] Figure 17 The structure diagram of the shuffling large disc in the embodiment;

[0060] Figure 18 The structure diagram of the scraper in the embodiment, viewed from the top;

[0061] Figure 19 The structure diagram of the scraper in the embodiment, viewed from the bottom;

[0062] Figure 20 The structure diagram of the connecting rod and the clamping spring of the motion separation mechanism in the embodiment;

[0063] Figure 21 The connection diagram of the first transmission mechanism and the second transmission mechanism in the embodiment;

[0064] Figure 22 The exploded structure diagram shown in Figure 21 The cross-sectional structure diagram shown in

[0065] Figure 23 The cross-sectional structure diagram shown in Figure 21 DETAILED DESCRIPTION

[0066] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0067] ​In the description of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0068] In the description of the present application, it needs to be understood that the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, integral connection, or detachable connection; it can be the communication inside two elements; it can be direct connection, or indirect connection through intermediate medium; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] As shown in Figures 1-3 , the new mahjong machine of the embodiment includes a center lifting mechanism, a shuffling large disc 70 and a tile scraper 80.

[0070] Among them, the center lifting mechanism in the embodiment includes a lifting seat 10, a lifting rod 20, a dice disc 40 and a driving motor 30, as shown in Figures 4-10 . Among them, the lifting seat 10 is fixedly arranged and fixedly connected with the rack and the motor seat 37 of the mahjong machine; the lifting rod 20 is located on the inner side of the lifting seat 10 and is axially movably connected with the lifting seat 10, that is, it can be lifted along the vertical direction relative to the lifting seat 10, and the dice disc 40 is fixedly connected to the upper end of the lifting rod 20.

[0071] In the embodiment, a guide mechanism is arranged between the lifting rod 20 and the lifting seat 10. As shown in Figure 10 , Figure 11 , the guide mechanism includes a pair of oppositely arranged guide protrusions 22 arranged on the outer wall of the lifting rod and a guide groove 11 arranged on the inner wall of the lifting seat 10 and matched with the guide protrusions 22. The arrangement of the guide mechanism ensures the lifting accuracy of the lifting rod.

[0072] As a preferred embodiment, as shown in Figure 11 , a through groove 23 is arranged in the guide protrusion 22. The through groove 23 is arranged to reduce the weight, save raw materials and reduce the cost.

[0073] As the biggest improvement of the embodiment, the driving motor 30 is vertically arranged, and the output shaft 31 of the driving motor 30 is coaxially arranged below the lifting rod 20. After the arrangement, the driving motor 30 is coincident with the projection of the lifting rod 20, and the space occupied by the center lifting mechanism in the projection direction is smaller, so that the space utilization of the mahjong machine is higher, the structure is more compact, and the volume is smaller.

[0074] In the embodiment, a vertical cam 50 for transmitting driving force is arranged between the driving motor 30 and the lifting rod 20. Figure 12 As shown in the figure, the lower end of the vertical cam 50 is provided with a connecting part 52 for coaxially fixed connection with the output shaft 31 of the driving motor 30, and the upper end face of the vertical cam 50 is provided with a cam track surface 51 with varying height in the circumferential direction. Correspondingly, as shown in the figure, Figure 11 The inner wall of the lifting rod 20 is provided with a supporting part 21 for contact and cooperation with the cam track surface 51.

[0075] In the embodiment, the vertical cam 50 and the supporting part 21 constitute a first transmission mechanism between the driving motor 30 and the lifting rod 20, and the working principle is that the driving motor 30 drives the vertical cam 50 to rotate, and during the rotation of the vertical cam 50, the height of the position where the supporting part 21 contacts the cam track surface 51 changes, thereby realizing the lifting of the lifting rod. The vertical cam 50 as a power transmission part makes the overturning moment of the lifting rod smaller, and the power consumption is smaller, thereby making the driving motor can adopt a motor with smaller power. In this way, not only the cost of the motor is reduced, but also the space occupied by the driving motor is reduced.

[0076] As a preferred embodiment, the orthographic projection of the cam track surface 51 is annular. Compared with the solid structure, the vertical cam is lighter, the used raw materials are less, and the cost is lower.

[0077] Under the normal working state of the mahjong machine, the center lifting mechanism is as shown in the figure, Figure 8 , Figure 9 The dice tray is at the low position and is flush with the tabletop of the mahjong machine, at this time, the supporting part 21 is in contact and cooperation with the lowest position of the cam track surface 51. When a game is finished and needs to be shuffled, the driving motor is started to drive the vertical cam to rotate, and the contact position of the supporting part 21 and the cam track surface 51 changes from the lowest position to the highest position as shown in the figure, Figure 6 , Figure 7 At this time, the mahjong tiles on the mahjong table can be pushed into the mahjong machine for shuffling. After the mahjong tiles on the mahjong table are all pushed in, the driving motor is started again, and during the rotation of the vertical cam, the lifting rod and the dice tray are lowered under the action of gravity, so that the supporting part 21 and the cam track surface 51 keep contact, until Figure 8 ,Figure 9 The state shown.

[0078] In this embodiment, to make the descent of the dice pan and the lifting rod more reliable, a spring 60 is provided between the lifting seat 10 and the lifting rod 20. This spring 60 is configured to be in an energy-storing state when the lifting rod 20 is in a high position. Thus, during the descent of the dice pan, gravity and the restoring potential energy of the spring work together to ensure the reliability of the descent.

[0079] Of course, spring 60 can be set to either a compressed state or a stretched state for energy storage.

[0080] Preferably, in this embodiment, the energy storage state of the spring 60 is a compressed state. The specific connection method is as follows: Figure 9 , Figure 10 As shown, the inner wall of the lifting seat 10 is provided with a spring receiving cavity 12. The upper end of the spring receiving cavity 12 is provided with a limiting cavity bottom 13. The lower end of the spring receiving cavity 12 is open, and an opening is provided on the side facing the lifting rod radially. The width of the opening is set such that the spring 60 can only enter and exit from the lower opening and cannot enter and exit from the opening side.

[0081] Correspondingly, such as Figure 9 , Figure 11 As shown, the lower end of the lifting rod 20 is provided with a lug 24 that is adapted to the spring receiving cavity. The spring 60 is located between the lug 24 and the bottom 13 of the limiting cavity. During the lifting rod's ascent, the spring is compressed to store energy. When the stored energy of the spring is released, the lifting rod can be driven to descend through the lug 24.

[0082] Preferably, in order to ensure balanced force distribution, the spring receiving cavity, the spring, and the lugs are all arranged in pairs.

[0083] As another improvement to this embodiment, the shuffling disc 70 shares a drive motor 30 with the lifting mechanism. Figure 17 As shown, the bottom of the shuffling disk 70 in this embodiment is provided with an internal toothed ring 71.

[0084] In this embodiment, a second transmission mechanism is provided between the drive motor 30 and the shuffling disc 70. Preferably, this second transmission mechanism is as follows: Figure 13 , Figure 21 and Figure 22 As shown, it includes a drive gear 32 connected to the output shaft 31 of the drive motor 30, driven gears 33 located on both sides of the drive gear 32 and meshing with the drive gear 32 respectively, and an internal gear ring 71, wherein the driven gear 33 meshes with the internal gear ring 71.

[0085] In this embodiment, two driven gears 33 are provided to make the force on the shuffling tray more uniform, of course, one or more driven gears can also achieve the corresponding function.

[0086] In this embodiment, in order to realize that one driving motor 30 simultaneously serves as the power source of the shuffling tray 70 and the lifting mechanism, as shown in Figure 3 、 Figure 22 and Figure 23 , a first one-way transmission member 35 and a second one-way transmission member 36 are provided side by side on the output shaft 31 of the driving motor 30, wherein the power transmission direction of the second one-way transmission member 36 is opposite to that of the first one-way transmission member 35.

[0087] It should be noted that the first one-way transmission member 35 and the second one-way transmission member 36 of the present embodiment adopt the one-way bearing or ratchet and pawl mechanism in the prior art, which will not be described here.

[0088] Among them, the first one-way transmission member 35 is arranged between the output shaft 31 and the vertical cam 50, and the second one-way transmission member 36 is arranged between the output shaft 31 and the driving gear 32, so that during the rotation of the driving motor 30 in one direction, only one of the shuffling tray and the central lifting mechanism is working.

[0089] In this embodiment, it also includes a card scraper 80, as shown in Figure 18 、 Figure 19 , the card scraper 80 includes a card scraping seat 81 and a scraping arm 82 arranged on the outer periphery of the card scraping seat 81, and a sleeve 85 is arranged on the inner side of the card scraping seat 81 and sleeved on the outer side of the lifting seat. The card scraper 80 is rotatably connected to the lifting seat.

[0090] In this embodiment, the card scraper 80 is arranged to be rotatable. Specifically, a third transmission mechanism is arranged between the card scraper 80 and the shuffling tray 70, which includes a first transmission gear 34 coaxially connected with the driving gear 32 and a second transmission gear / teeth ring engaged with the first transmission gear 34, and the second transmission gear / teeth ring is arranged on the card scraping seat 81.

[0091] As a preferred, in this embodiment, a second transmission ring 83 is arranged on the card scraping seat 81 for engaging with the first transmission gear 34.

[0092] In this embodiment, since the rotation of the card scraper 80 is not continuous during the shuffling process, it is usually stopped after one rotation. Therefore, the second transmission ring 83 of the present embodiment is provided with an empty position 84, and when the first transmission gear 34 moves to the empty position 84, it is disengaged from the second transmission ring 83.

[0093] In this embodiment, in order to control the start and stop of the rotation of the card scraper 80, a motion separation mechanism is specially provided between the card scraper 80 and the lifting seat 10. This motion separation mechanism is as follows: Figure 3 , Figure 10 , Figure 12 , Figure 15 , Figure 16 , Figure 19 as well as Figure 20 As shown, it includes a first slot 86 disposed on the sleeve 85, a second slot 14 disposed on the lifting seat 10, a connecting rod 90, and a pressing protrusion 53 disposed on the outer wall of the vertical cam 50. The second slot 14 is at the same height as the first slot 86.

[0094] like Figure 20 As shown, the connecting rod 90 in this embodiment has a hinge portion 92 in the middle, which is preferably hinged to the lifting seat. One end of the connecting rod 90 is provided with a locking block 93 for fitting with the first and second locking slots, and the other end of the connecting rod 90 is provided with a spring receiving groove 94. A locking spring 91 is installed in the spring receiving groove 94, and the free end of the locking spring 91 is connected to the inner wall of the lifting seat.

[0095] In this configuration, the card block 93 is adapted to the first card slot 86 and the second card slot 14, and the first transmission gear 34 is located in the clearance position 84 of the second transmission gear ring 83.

[0096] The motion separation mechanism of this embodiment has the technical advantages of simple structure, low cost and reliable control.

[0097] The shuffling method of this novel mahjong machine includes the following steps:

[0098] S10: Start the drive motor 30. The drive motor drives the dice disk to rise from the low position to the high position through the first one-way transmission component and the first transmission mechanism. When the dice disk is in the high position, the pressing protrusion acts on the end of the connecting rod where the locking spring is provided, causing the locking block to disengage from the first locking groove.

[0099] S20: The drive motor rotates in the opposite direction to S10. The drive motor drives the shuffling disc to rotate through the second one-way transmission and the second transmission mechanism. The shuffling disc drives the scraper to rotate in the same direction by a certain angle through the friction between it and the scraper arm. The positions of the first slot and the second slot are intersected. The second transmission gear / gear ring rotates to mesh with the first transmission gear.

[0100] S30: The drive motor rotates in the opposite direction to S20, and the drive motor drives the dice disk to descend from the high position to the low position through the first one-way transmission component and the first transmission mechanism.

[0101] S40: The driving motor rotates reversely relative to S30, the driving motor drives the shuffling large disc to rotate through the second one-way transmission and the second transmission mechanism, the shuffling large disc drives the card scraper to rotate through the third transmission mechanism, the rotating direction of the card scraper is same as that of the shuffling large disc, and the rotating speed of the card scraper is less than that of the shuffling large disc;

[0102] S50: The card scraper rotates one circle to the card block cooperating with the first card slot, the first transmission gear is disengaged from the second transmission gear / ring gear through the empty position; the shuffling large disc continues to rotate to the end of shuffling.

[0103] The shuffling method, in the initial stage of shuffling, the scraping arm of the card scraper rotates with the shuffling large disc in the same direction, and the rotating speed is less than that of the shuffling large disc, the relative speed difference will generate certain resistance to the mahjong tiles, block and guide the mahjong tiles to slide to the bottom, but in the process, the resistance is relatively small, the deformation of the scraping arm is smaller, and the driving motor torque of the shuffling large disc is smaller, thereby saving the cost and prolonging the service life; since the stacking does not occur at the card inlet, the resistance to the free end of the scraping arm is small, the deformation of the free end of the scraping arm is small, and the noise generated in the rotating process is greatly reduced.

[0104] In summary, the above only describes the preferred embodiments of the present application, and does not limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A new mahjong machine, characterized in that, At least comprising: a central lifting mechanism, which at least comprises a fixedly arranged lifting seat, a lifting rod axially movably connected with the lifting seat, and a dice disc fixedly connected to the top end of the lifting rod; a large shuffling disc coaxially arranged with the central lifting mechanism; a driving motor vertically arranged, and the driving motor is located at the center position, the output shaft of the driving motor is coaxially arranged with the lifting rod and located below the lifting rod, and the projection of the driving motor coincides with the lifting rod; a first transmission mechanism arranged between the driving motor and the lifting rod; a second transmission mechanism arranged between the driving motor and the large shuffling disc; a first one-way transmission member installed on the output shaft of the driving motor and connected with the first transmission mechanism; and a second one-way transmission member installed on the output shaft of the driving motor and connected with the second transmission mechanism, the power transmission direction of the second one-way transmission member is opposite to that of the first one-way transmission member; The first transmission mechanism at least comprises a vertical cam, the lower end of the vertical cam is connected with the first one-way transmission member, the upper end face of the vertical cam is provided with a cam track surface with varying height in the circumferential direction, and the lifting rod is provided with a supporting portion for contacting and matching with the cam track surface. The lifting seat and the lifting rod are provided with a spring, and the spring is configured to be in an energy storage state when the lifting rod is in a high position.

2. The mahjong machine according to claim 1, characterized in that, The inner wall of the lifting seat is provided with a spring accommodating cavity, the upper end of the spring accommodating cavity is provided with a limiting cavity bottom, the lower end of the spring accommodating cavity is open, and the side of the spring accommodating cavity facing the lifting rod is provided with an opening; the lower end of the lifting rod is provided with a lug matched with the spring accommodating cavity.

3. The new mahjong machine according to claim 2, characterized by, The second transmission mechanism comprises:

4. The mahjong machine according to claim 1, wherein a driving gear connected with the second one-way transmission member; at least one driven gear meshing with the driving gear; and an inner gear ring arranged at the bottom of the large shuffling disc and meshing with the driven gear. Further comprising a card scraper, which comprises a scraper seat and a scraper arm arranged on the outer periphery of the scraper seat, the inner side of the scraper seat is provided with a sleeve arranged on the outer side of the lifting seat, and the scraper is rotatably connected with the lifting seat.

5. The mahjong machine according to any one of claims 1 to 3, characterized in that, A third transmission mechanism is arranged between the card scraper and the large shuffling disc, the third transmission mechanism at least comprises a first transmission gear and a second transmission gear / gear ring meshing with the first transmission gear, the second transmission gear / gear ring is arranged on the scraper seat, the second transmission gear / gear ring is provided with a clearance position disengaged from the first transmission gear, and the first transmission gear is coaxially arranged with the driven gear.

6. The mahjong machine according to claim 5, wherein A motion separation mechanism is further arranged between the card scraper and the lifting seat, the motion separation mechanism comprises:

7. The mahjong machine according to claim 6, wherein a first clamping groove arranged on the sleeve; a second clamping groove arranged on the lifting seat and having the same height as the first clamping groove; ​ A connecting rod, a middle part of the connecting rod is provided with a hinge part, one end of the connecting rod is provided with a clamping block for fitting with the first clamping groove and the second clamping groove, and the other end of the connecting rod is provided with a clamping spring between the inner wall of the lifting seat. A pressing protrusion is arranged on the outer wall of the vertical cam and is used for pressing one end of the connecting rod provided with the clamping spring.

8. The mahjong machine according to claim 7, wherein In the state that the clamping block is fitted with the first clamping groove and the second clamping groove, the first transmission gear is located in the avoidance position of the second transmission gear / annular gear.

9. A shuffling method for the new mahjong machine of claim 8, characterized in that, At least the following steps are included: S10: Start the driving motor, drive the dice disc to rise from the low position to the high position through the first one-way transmission and the first transmission mechanism, when the dice disc is in the high position, the pressing protrusion acts on one end of the connecting rod provided with the clamping spring, and drives the clamping block to disengage from the first clamping groove; S20: The driving motor is reversely rotated relative to S10, the driving motor drives the shuffling disc to rotate through the second one-way transmission and the second transmission mechanism, the shuffling disc drives the card scraper to rotate in the same direction through the friction force between the shuffling disc and the card scraper, and then the positions of the first clamping groove and the second clamping groove are staggered, and the second transmission gear / annular gear is rotated to engage with the first transmission gear; S30: The driving motor is reversely rotated relative to S20, the driving motor drives the dice disc to descend from the high position to the low position through the first one-way transmission and the first transmission mechanism; S40: The driving motor is reversely rotated relative to S30, the driving motor drives the shuffling disc to rotate through the second one-way transmission and the second transmission mechanism, the shuffling disc drives the card scraper to rotate through the third transmission mechanism, the rotating direction of the card scraper is the same as that of the shuffling disc, and the rotating speed of the card scraper is less than that of the shuffling disc; S50: The card scraper rotates one circle to engage the clamping block with the first clamping groove, the first transmission gear is disengaged from the second transmission gear / annular gear through the avoidance position; and the shuffling disc continues to rotate to the end of shuffling.

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