CN214808372U - Novel mahjong machine - Google Patents

Abstract

The utility model relates to a mahjong machine technical field specifically discloses a novel mahjong machine. The novel mahjong machine comprises a central lifting mechanism, a shuffling large plate and a driving motor, wherein a first one-way transmission piece and a first transmission mechanism are arranged between the driving motor and the central lifting mechanism, and a second one-way transmission piece and a second transmission mechanism are arranged between the driving motor and the shuffling large plate. In the embodiment, the shuffling large disk and the central lifting mechanism are driven by one driving motor, and the rotation of the shuffling large disk and the work of the central lifting mechanism are respectively realized by utilizing the positive and negative rotation of the driving motor, so that the utilization rate of the driving motor is improved, and the number and the cost of the motors are reduced.

Description

Novel mahjong machine

Technical Field

The utility model relates to a mahjong machine technical field, concretely relates to novel mahjong machine.

Background

The existing automatic mahjong machine is provided with a shuffling large plate and a central lifting mechanism. In the prior art, a shuffling motor is arranged on a shuffling large disk, a lifting motor is arranged on a central lifting mechanism, the number of the motors is large, the cost is high, and the energy consumption is large.

The shuffle platter is typically constructed with the highest middle portion and gradually decreasing from the middle portion to the edges. Because the central part of the mahjong machine is provided with the central lifting mechanism and the space for installing the shuffling motor is not available, the shuffling motor is usually installed below the shuffling large plate, the driving force required by the shuffling large plate is large, the power and the volume of the motor are also large, and the thickness and the volume of the mahjong machine are large due to the installation position of the shuffling motor.

The central lifting mechanism of the mahjong machine generally comprises a dice tray, a lifting rod connected with the dice tray, a lifting motor and a transmission mechanism positioned between the lifting motor and the lifting rod. In the prior art, a lifting motor is generally designed in a horizontal manner, that is, the axial direction of an output shaft of the lifting motor is perpendicular to the lifting direction of a lifting rod, a transmission mechanism comprises a swing rod connected with the output shaft of the lifting motor, and the other end of the swing rod drives the lifting rod to lift along with the swinging process of the output shaft of the lifting motor.

The central lifting mechanism with the structure has the defects that the lifting motor is designed horizontally, the position of the lifting motor is positioned outside the orthographic projection position of the lifting rod, and 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 on the outer side of the lifting rod, so that the lifting rod and the dice tray have overturning moment in the lifting process, smoothness is poor, and consumed power is large.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a central elevating system and shuffle minidisk sharing driving motor's novel mahjong machine to solve among the prior art central elevating system and shuffle minidisk and dispose the technical defect that independent driving motor leads to respectively.

In order to solve the technical problem, the utility model provides a technical scheme as follows: a novel mahjong machine at least comprises:

the central lifting mechanism at least comprises a lifting seat fixedly arranged, a lifting rod axially and movably connected with the lifting seat and a dice tray fixedly connected to the top end of the lifting rod;

the shuffling large disc is coaxially arranged with the central lifting mechanism;

the driving motor is vertically arranged, and an output shaft of the driving motor is coaxially arranged with the lifting rod and is positioned below the lifting rod;

the first transmission mechanism is configured between the driving motor and the lifting rod;

the second transmission mechanism is arranged between the driving motor and the shuffling large disc;

the first one-way transmission piece is arranged on an output shaft of the driving motor and is connected with the first transmission mechanism; and

the second one-way transmission piece is arranged 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 piece is opposite to that of the first one-way transmission piece.

In a preferred embodiment, the first transmission mechanism at least includes a vertical cam, a lower end of the vertical cam is connected to the first one-way transmission member, a cam track surface with height variation is arranged on an upper end face of the vertical cam along a circumferential direction, and a support portion for contacting and matching with the cam track surface is arranged on the lifting rod.

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

In a preferred embodiment, a spring accommodating cavity is formed in the inner wall of the lifting seat, a limiting cavity bottom is formed in the upper end of the spring accommodating cavity, the lower end of the spring accommodating cavity is open, and an opening is formed in one side of the spring accommodating cavity, which radially faces the lifting rod; the lower extreme of lifter be provided with the journal stirrup that the spring held the chamber adaptation.

In a preferred embodiment, the second transmission mechanism includes:

the driving gear is connected with the second one-way transmission piece;

a driven gear configured as at least one and engaged with the driving gear; and

the inner gear ring is arranged at the bottom of the shuffling large disk and is meshed with the driven gear.

The card scraping device comprises a card scraping seat and a scraping arm arranged on the periphery of the card scraping seat, a sleeve sleeved on the outer side of the lifting seat is arranged on the inner side of the card scraping seat, and the card scraping device is rotatably and movably connected with the lifting seat.

In a preferred embodiment, a third transmission mechanism is arranged between the card scraping device and the shuffling large disc, the third transmission mechanism at least comprises a first transmission gear and a second transmission gear/gear ring meshed with the first transmission gear, the second transmission gear/gear ring is arranged on the card scraping seat, a clearance position disengaged from the first transmission gear is arranged on the second transmission gear/gear ring, and the first transmission gear and the driven gear are coaxially arranged.

In a preferred embodiment, a movement separation mechanism is further disposed between the card scraping device and the lifting seat, and the movement separation mechanism includes:

the first clamping groove is arranged on the sleeve;

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

the middle part of the connecting rod is provided with a hinged part, one end of the connecting rod is provided with a clamping block which is matched with 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

and the pressing convex part is arranged on the outer wall of the vertical cam and used for pressing one end of the connecting rod, which is provided with the clamping spring.

In a preferred embodiment, the clamping block is matched with the first clamping groove and the second clamping groove, and the first transmission gear is located in the vacancy avoiding position of the second transmission gear/gear ring.

Compared with the prior art, the novel mahjong machine of the embodiment has the following beneficial effects:

(1) the shuffling large disk and the central lifting mechanism are driven by one driving motor, and the rotation of the shuffling large disk and the work of the central lifting mechanism are respectively realized by utilizing the positive and negative rotation of the driving motor, so that the utilization rate of the driving motor is improved, and the number and the cost of the motors are reduced.

(2) The mahjong shuffling large disc and the central lifting mechanism are driven together, so that the mahjong machine is simpler in structure, the number of parts is reduced, the assembly process is simplified, the production efficiency is improved, the control system is simplified, and the failure rate of the mahjong machine is reduced.

(3) The vertical setting of driving motor, and driving motor is located central point and puts, and so overall arrangement can effectively reduce the height of shuffling big dish, and then reduces the thickness of mahjong table, makes the mahjong machine more frivolous, and then has reduced the volume of mahjong machine, has reduced packing and cost of transportation.

(4) The projection coincidence of driving motor and lifter, on its projection direction, shared space is littleer, so makes mahjong machine's space utilization higher, and the structure is compacter, and the volume is also littleer.

(5) The mahjong tile scraping device is arranged to be rotatable, the traditional fixed design is broken through, in the starting stage of shuffling, after mahjong tiles slide on the upper surface of the shuffling large disk, the scraping arms of the mahjong tile scraping device rotate along with the shuffling large disk in the same direction, part of the mahjong tiles can rotate along with the shuffling large disk, the sliding speed of part of the mahjong tiles in a mahjong tile stack towards the mahjong tile inlet is delayed, only one part of the mahjong tiles move towards the mahjong tile inlet, so that the mahjong tiles at the mahjong tile inlet cannot be accumulated in large quantity, and the mahjong tile feeding efficiency at the mahjong tile inlet is improved.

Drawings

FIG. 1 is a schematic view of the connection structure between the central lifting mechanism and the shuffling large plate in the novel mahjong machine of this embodiment;

FIG. 2 is a schematic structural view of the bottom view of FIG. 1;

FIG. 3 is a schematic view of the exploded structure of the central lifting mechanism and the shuffling platter of the mahjong machine of the present embodiment;

FIG. 4 is a schematic perspective view of a central lifting mechanism of the mahjong machine of the present embodiment;

FIG. 5 is a schematic diagram of the exploded structure of the central lifting mechanism of the mahjong machine of the present embodiment;

fig. 6 is a front view of the central lifting mechanism of the novel mahjong machine of the embodiment, wherein the dice tray is in a high position;

FIG. 7 is a cross-sectional structural schematic view of the central lift mechanism of FIG. 6;

fig. 8 is a front view of the central lifting mechanism of the novel mahjong machine of the embodiment, wherein the dice tray is in a low position;

FIG. 9 is a cross-sectional structural schematic view of the central lift mechanism of FIG. 8;

FIG. 10 is a schematic view of the lifting seat of the mahjong machine of the present embodiment;

FIG. 11 is a schematic structural view of the lifting rod of the mahjong machine of the embodiment;

FIG. 12 is a schematic structural view of the neutral cam of the mahjong machine of the embodiment;

FIG. 13 is a schematic connection diagram of a second transmission mechanism in the present embodiment;

fig. 14 is a schematic state diagram of the movement separation mechanism in the embodiment, in which the latch is disengaged from the first latch slot;

fig. 15 is a schematic state diagram of the movement separation mechanism in the embodiment, in which the latch is in a state of being engaged with the first slot;

FIG. 16 is a schematic view of the connection between the motion separating mechanism and the vertical cam and the lifting seat in this embodiment;

FIG. 17 is a schematic view of the structure of the shuffled large disc of this embodiment;

FIG. 18 is a schematic top perspective view of the card scraping device of this embodiment;

FIG. 19 is a schematic bottom perspective view of the card scraping device of this embodiment;

FIG. 20 is a schematic structural view of the link and the detent spring of the movement separating mechanism of the present embodiment;

FIG. 21 is a schematic view of the connection between the first transmission mechanism and the second transmission mechanism in this embodiment;

FIG. 22 is a schematic view of the exploded view of FIG. 21;

fig. 23 is a schematic cross-sectional view of the structure shown in fig. 21.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

As shown in fig. 1-3, the new mahjong machine of the embodiment comprises a central lifting mechanism, a shuffling large plate 70 and a card scraping device 80.

The central lifting mechanism in this embodiment is shown in fig. 4-10, and includes a lifting base 10, a lifting rod 20, a dice tray 40, and a driving motor 30. Wherein, the lifting seat 10 is fixedly arranged and fixedly connected with the rack of the mahjong machine and the motor seat 37; the lifting rod 20 is located at the inner side of the lifting seat 10 and is axially movably connected with the lifting seat 10, so that the lifting rod can lift relative to the lifting seat 10 along the vertical direction, and the dice disk 40 is fixedly connected to the upper end of the lifting rod 20.

In this embodiment, a guiding mechanism is disposed between the lifting rod 20 and the lifting seat 10. In a preferred embodiment, as shown in fig. 10 and 11, the guiding mechanism includes a pair of oppositely disposed guiding ribs 22 disposed on an outer wall of the lifting rod, and a guiding groove 11 disposed on an inner wall of the lifting seat 10 and adapted to the guiding ribs 22. The lifting precision of the lifting rod is ensured by the arrangement of the guide mechanism.

In the present embodiment, as shown in fig. 11, a through groove 23 is preferably provided in the guide rib 22. The through groove 23 is provided for reducing the weight, saving raw materials and reducing the cost.

As the greatest improvement of the embodiment, the driving motor 30 is arranged vertically, and the output shaft 31 of the driving motor 30 is arranged coaxially with the lifting rod 20 and is positioned below the lifting rod 20. After the arrangement, the projection of the driving motor 30 and the lifting rod 20 is overlapped, and the space occupied by the central lifting mechanism is smaller in the projection direction, so that the space utilization rate of the mahjong machine is higher, the structure is more compact, and the volume is smaller.

In the present embodiment, a vertical cam 50 for transmitting a driving force is provided between the driving motor 30 and the lifting rod 20, as shown in fig. 12, a connecting portion 52 for coaxial fixed connection with the output shaft 31 of the driving motor 30 is provided at a lower end of the vertical cam 50, and a cam track surface 51 having a height variation is provided at an upper end surface of the vertical cam 50 in a circumferential direction. Accordingly, as shown in fig. 11, the inner wall of the lifter bar 20 is provided with a support portion 21 for contact-fitting with the cam track surface 51.

In this embodiment, the vertical cam 50 and the supporting portion 21 form 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 on the cam track surface 51 contacting the supporting portion 21 changes, so as to achieve the lifting of the lifting rod. This vertical cam 50 is as power transmission spare, makes the overturning moment that the lifter received less, and the power that consumes is less, and then makes driving motor can adopt the less motor of power, so not only reduced motor cost to the shared space of driving motor has been reduced.

Preferably, in the present embodiment, the orthogonal projection of the cam track surface 51 is annular, so that the weight of the vertical cam is lighter, the used raw material is less, and the cost is lower compared with the solid structure.

In the normal operation of the mahjong machine, as shown in fig. 8 and 9, the central lifting mechanism has the dice tray at a low position and flush with the table top of the mahjong machine, and at this time, the supporting portion 21 is in contact engagement with the lowest position of the cam track surface 51. When the mahjong game is finished and the mahjong is needed to be shuffled, the driving motor is started to drive the vertical cam to rotate, the contact position of the supporting part 21 and the cam track surface 51 is changed from the lowest position to the highest position shown in fig. 6 and 7, and at this time, the mahjong on the table surface of the mahjong machine can be pushed into the mahjong machine to be shuffled. After all the mahjong tiles on the mahjong table are pushed in, the driving motor is started again, and in the rotating process of the vertical cam, the lifting rod and the dice disk descend under the action of gravity, so that the supporting part 21 is kept in contact with the cam track surface 51 until the state shown in fig. 8 and 9 is reached.

In this embodiment, in order to make the descending of the dice tray and the lifting bar more reliable, a spring 60 is disposed between the lifting base 10 and the lifting bar 20, and the spring 60 is configured to be in an energy storage state when the lifting bar 20 is in a high position. Therefore, in the descending process of the dice tray, the gravity and the recovery potential energy of the spring act together, and the descending reliability can be guaranteed.

Of course, the spring 60 may be set to either a compressed state or a stretched state.

Preferably, in the present embodiment, the stored energy state of the spring 60 is a compressed state. The specific connection mode is as shown in fig. 9 and 10, a spring accommodating cavity 12 is arranged on the inner wall of the lifting seat 10, a limiting cavity bottom 13 is arranged at the upper end of the spring accommodating cavity 12, the lower end of the spring accommodating cavity 12 is open, an opening is arranged on one side facing the lifting rod in the radial direction, and the width of the opening is set so that the spring 60 can only pass in and out from the lower end opening and cannot pass in and out from the opening side.

Correspondingly, as shown in fig. 9 and 11, the lower end of the lifting rod 20 is provided with a support lug 24 adapted to the spring accommodating cavity. The spring 60 is located between the support lug 24 and the limiting cavity bottom 13, and during the lifting process of the lifting rod, the spring is compressed to store energy, and when the stored energy of the spring is released, the lifting rod can be driven to descend through the support lug 24.

Preferably, the spring accommodating cavity, the spring and the support lug are arranged in pairs for force balance.

As another modification of the present embodiment, the shuffle board 70 shares the drive motor 30 with the elevating mechanism. As shown in fig. 17, the bottom of the shuffle platter 70 of this embodiment is provided with an inner ring gear 71.

In the present embodiment, a second transmission mechanism is provided between the driving motor 30 and the shuffler board 70, and preferably, the second transmission mechanism includes a driving gear 32 connected to the output shaft 31 of the driving motor 30, driven gears 33 located at both sides of the driving gear 32 and respectively engaged with the driving gear 32, and an inner ring gear 71, as shown in fig. 13, 21 and 22, wherein the driven gears 33 are engaged with the inner ring gear 71.

In this embodiment, two driven gears 33 are provided, so that the force applied to the shuffling large disk is more uniform, and one or more driven gears can be provided to realize corresponding functions.

In this embodiment, in order to realize that one driving motor 30 is used as the power source for both the shuffle board 70 and the lifting mechanism, as shown in fig. 3, 22 and 23, a first one-way transmission member 35 and a second one-way transmission member 36 are arranged 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.

It should be noted that the first one-way transmission member 35 and the second one-way transmission member 36 of the present embodiment use a one-way bearing or a ratchet and ratchet mechanism in the prior art, and are not described herein again.

The first one-way transmission piece 35 is arranged between the output shaft 31 and the vertical cam 50, and the second one-way transmission piece 36 is arranged between the output shaft 31 and the driving gear 32, so that only one of the shuffling large plate and the central lifting mechanism works in the process that the driving motor 30 rotates in one direction.

In this embodiment, the card scraping device 80 is further included, as shown in fig. 18 and 19, the card scraping device 80 includes a card scraping base 81 and a scraping arm 82 disposed on the periphery of the card scraping base 81, a sleeve 85 sleeved on the outer side of the lifting base is disposed on the inner side of the card scraping base 81, and the card scraping device 80 is rotatably and movably connected with the lifting base.

In this embodiment, the card scraper 80 is configured to be rotationally movable. Specifically, a third transmission mechanism is arranged between the card scraping device 80 and the card shuffling large plate 70, the third transmission mechanism comprises a first transmission gear 34 coaxially connected with the driving gear 32 and a second transmission gear/gear ring meshed with the first transmission gear 34, and the second transmission gear/gear ring is arranged on the card scraping seat 81.

Preferably, in the embodiment, the card scraping seat 81 is provided with a second transmission gear ring 83 for cooperating with the first transmission gear 34.

In this embodiment, since the rotation of the card shoe 80 is not continued during the shuffling process, the rotation is usually stopped after one rotation. Therefore, the second transmission gear ring 83 of the present embodiment is provided with the clearance 84, and when the first transmission gear 34 moves to the clearance 84, the first transmission gear ring is disengaged from the second transmission gear ring 83.

In this embodiment, in order to control the start and stop of the rotation of the card scraping unit 80, a movement separating mechanism is provided between the card scraping unit 80 and the lifting base 10, and the movement separating mechanism includes, as shown in fig. 3, 10, 12, 15, 16, 19, and 20, a first engaging groove 86 provided on the sleeve 85, a second engaging groove 14 provided on the lifting base 10, a link 90, and a pressing protrusion 53 provided on the outer wall of the upright cam 50. Wherein the height position of the second card slot 14 is the same as the first card slot 86.

As shown in fig. 20, the middle portion of the link 90 of the present embodiment is provided with a hinge portion 92, which is preferably hinged with the lifting seat. One end of the connecting rod 90 is provided with a clamping block 93 adapted to the first clamping groove and the second clamping groove, the other end of the connecting rod 90 is provided with a spring accommodating groove 94, a clamping spring 91 is installed in the spring accommodating groove 94, and the free end of the clamping spring 91 is connected with the inner wall of the lifting seat.

In a state where the latch 93 is fitted with the first latch groove 86 and the second latch groove 14, the first transmission gear 34 is located at the clearance 84 of the second transmission gear ring 83.

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

The shuffling method of the novel mahjong machine comprises the following steps:

s10: starting a driving motor 30, driving the dice tray to ascend from a low position to a high position through a first one-way transmission part and a first transmission mechanism, and when the dice tray is at the high position, pressing the convex part to act on one end of the connecting rod, which is provided with a clamping spring, so as to drive the clamping block to be disengaged from the first clamping groove;

s20: the driving motor rotates reversely relative to S10, the driving motor drives the shuffling large disc to rotate through a second one-way transmission mechanism and a second transmission mechanism, after the shuffling large disc drives the card scraping device to rotate in the same direction for a certain angle through friction force between the shuffling large disc and the scraping arm, the positions of the first clamping groove and the second clamping groove are staggered, and the second transmission gear/gear ring rotates to be meshed with the first transmission gear;

s30: the driving motor rotates reversely relative to S20, and the driving motor drives the dice disk to descend from a high position to a low position through the first one-way transmission piece and the first transmission mechanism;

s40: the driving motor rotates reversely relative to S30, the driving motor drives the big shuffling disc to rotate through a second one-way transmission mechanism and a second transmission mechanism, the big shuffling disc drives the card scraping device to rotate through a third transmission mechanism, the rotation direction of the card scraping device is the same as that of the big shuffling disc, and the rotation speed of the card scraping device is smaller than that of the big shuffling disc;

s50: the card scraping device rotates for a circle until the clamping block is matched with the first clamping groove, and the first transmission gear is disengaged from the second transmission gear/gear ring through the vacancy avoiding position; the shuffling large disc continues to rotate until the shuffling is finished.

In the shuffling method, at the initial stage of shuffling, the scraping arm of the mahjong scraping device rotates along with the large shuffling disc in the same direction, the rotating speed is lower than that of the large shuffling disc, and the relative speed difference can generate certain resistance to mahjong tiles and block and guide the mahjong tiles to slide down to the bottom; because the mahjong tile feeding port cannot be accumulated, the resistance generated by 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.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims (9)

1. A novel mahjong machine is characterized by at least comprising:

the central lifting mechanism at least comprises a lifting seat fixedly arranged, a lifting rod axially and movably connected with the lifting seat and a dice tray fixedly connected to the top end of the lifting rod;

the shuffling large disc is coaxially arranged with the central lifting mechanism;

the driving motor is vertically arranged, and an output shaft of the driving motor is coaxially arranged with the lifting rod and is positioned below the lifting rod;

the first transmission mechanism is configured between the driving motor and the lifting rod;

the second transmission mechanism is arranged between the driving motor and the shuffling large disc;

the first one-way transmission piece is arranged on an output shaft of the driving motor and is connected with the first transmission mechanism; and

the second one-way transmission piece is arranged 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 piece is opposite to that of the first one-way transmission piece.

2. The novel mahjong machine as claimed in claim 1, wherein 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 surface of the vertical cam is provided with a cam track surface with height variation along the circumferential direction, and the lifting rod is provided with a supporting part for contacting and matching with the cam track surface.

3. The novel mahjong machine as recited in claim 2, wherein a spring is disposed between the lifting base and the lifting rod and configured to store energy when the lifting rod is in the high position.

4. The novel mahjong machine as claimed in claim 3, wherein 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 one side of the spring accommodating cavity radially facing the lifting rod is provided with an opening; the lower extreme of lifter be provided with the journal stirrup that the spring held the chamber adaptation.

5. The new mahjong machine as recited in claim 2, wherein the second transmission mechanism comprises:

the driving gear is connected with the second one-way transmission piece;

a driven gear configured as at least one and engaged with the driving gear; and

the inner gear ring is arranged at the bottom of the shuffling large disk and is meshed with the driven gear.

6. The novel mahjong machine according to claim 5, further comprising a mahjong scraping device, wherein the mahjong scraping device comprises a mahjong scraping base and a scraping arm arranged on the periphery of the mahjong scraping base, a sleeve sleeved on the outer side of the lifting base is arranged on the inner side of the mahjong scraping base, and the mahjong scraping device is rotatably and movably connected with the lifting base.

7. The novel mahjong machine as claimed in claim 6, wherein a third transmission mechanism is arranged between the mahjong scraping device and the shuffling large plate, the third transmission mechanism at least comprises a first transmission gear and a second transmission gear/gear ring meshed with the first transmission gear, the second transmission gear/gear ring is arranged on the mahjong scraping seat, a clearance position disengaged from the first transmission gear is arranged on the second transmission gear/gear ring, and the first transmission gear and the driven gear are coaxially arranged.

8. The novel mahjong machine as recited in claim 7, wherein a movement separating mechanism is further arranged between the tile scraping device and the lifting seat, and the movement separating mechanism comprises:

the first clamping groove is arranged on the sleeve;

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

the middle part of the connecting rod is provided with a hinged part, one end of the connecting rod is provided with a clamping block which is matched with 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

and the pressing convex part is arranged on the outer wall of the vertical cam and used for pressing one end of the connecting rod, which is provided with the clamping spring.

9. The novel mahjong machine as claimed in claim 8, wherein the fixture block is adapted to the first and second slot, and the first transmission gear is located in the space-avoiding position of the second transmission gear/gear ring.

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