CN112791379A

CN112791379A - Mahjong machine with rotatable tile scraping device

Info

Publication number: CN112791379A
Application number: CN202110182494.XA
Authority: CN
Inventors: 阳琳
Original assignee: Individual
Current assignee: Espressif Smart Technology (Zhejiang) Co.,Ltd.
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-05-14

Abstract

The invention relates to the technical field of mahjong machines, and particularly discloses a mahjong machine with a rotatable mahjong scraping device, which at least comprises a mahjong scraping device, a limiting mechanism and a central lifting mechanism, wherein the mahjong scraping device comprises a mahjong scraping seat, a scraping arm and a sleeve, and the sleeve is provided with a first clamping groove which radially and outwards extends from the inner wall of the sleeve; the limiting mechanism at least comprises a limiting block and an elastic piece, and the elastic piece has elastic potential energy for driving the limiting block to enter the first clamping groove or separate from the first clamping groove; the central lifting mechanism is provided with a driving part for driving the limiting block to be separated from the first clamping groove. In this embodiment, when the stopper was located first draw-in groove, the state of scraping the tablet ware was restricted, was in quiescent condition, when stopper and first draw-in groove separation, the ware of scraping can be along with shuffling the big dish and be the syntropy rotary motion, and the radial motion control of stopper is passed through to this embodiment scrapes the state of tablet ware, has simple structure, and is with low costs, controls reliable technical advantage.

Description

Mahjong machine with rotatable tile scraping device

Technical Field

The invention relates to the technical field of mahjong machines, in particular to a mahjong machine with a rotatable tile scraping device.

Background

In the prior art, the mahjong tile scraping device is usually fixedly arranged, the shuffling large disk rotates during shuffling, and the scraping arm of the mahjong tile scraping device plays a role in blocking and guiding mahjong tiles on the shuffling large disk, so that the mahjong tiles on the shuffling large disk are promoted to move towards the mahjong tile feeding port.

The fixed type mahjong scraping device has the defects of low mahjong tile feeding efficiency and high noise generation caused by the accumulation of mahjong tiles at the mahjong tile feeding port. Therefore, the applicant designs a mahjong machine with a tile scraping device capable of rotating along with a large shuffling plate in the same direction, and solves the technical defect of a fixed tile scraping device by delaying the moving speed of the mahjong machine to a tile feeding port. The key of the design is how to realize the control of the rotation and the stop of the card scraping device through a simple and reliable limiting mechanism.

Disclosure of Invention

The invention aims to provide a mahjong machine with a rotatable mahjong scraping device, which realizes the control of the mahjong scraping device through a simple and reliable limiting mechanism.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a mahjong machine with a rotatable tile scraper at least comprises:

the card scraping device comprises a card scraping seat, a plurality of scraping arms and a sleeve, wherein the scraping arms are arranged on the periphery of the card scraping seat, the sleeve is arranged on the inner side of the card scraping seat, and the sleeve is provided with a first clamping groove which radially and outwards extends from the inner wall of the sleeve;

the limiting mechanism at least comprises a limiting block matched with the first clamping groove and an elastic piece, and the elastic piece has elastic potential energy for driving the limiting block to enter the first clamping groove or separate from the first clamping groove; and

the central lifting mechanism is provided with a driving part for driving the limiting block to be separated from the first clamping groove.

According to a preferred embodiment, the limiting mechanism at least comprises a limiting seat and a sliding block in sliding connection with the limiting seat, the limiting block is arranged on the sliding block, and a guide mechanism is arranged between the sliding block and the limiting seat.

In a preferred embodiment, the guide mechanism comprises a guide rail and a guide groove which are matched with each other, and the guide rail and the guide groove are respectively arranged on the sliding block and the limiting seat.

The central lifting mechanism at least comprises a fixedly arranged lifting seat, a vertical cam and a driving motor, the vertical cam is located in the lifting seat, the driving motor is used for driving the vertical cam to rotate, the limiting seat is fixedly connected with the lifting seat, the vertical cam is provided with a ring platform which is used for being in contact fit with one side, away from the limiting block, of the sliding block, the elastic piece is located on one side, away from the ring platform, of the sliding block and is configured to have elastic potential energy which drives the limiting block to be separated from the first clamping groove, and the driving portion is a concave portion arranged on the ring platform.

The central lifting mechanism at least comprises a fixedly arranged lifting seat, a lifting rod and a supporting seat, the lifting rod is movably connected with the lifting seat in a vertical mode, the supporting seat is arranged at the lower end of the lifting rod, the elastic piece is located between the sliding block and the lifting seat and is configured to have elastic potential energy which drives the limiting block to enter the first clamping groove, a guiding portion extending downwards is arranged at one end, away from the limiting block, of the bottom of the sliding block, and a traction portion matched with the guiding portion is arranged on the supporting seat.

According to a preferred embodiment, the limiting mechanism comprises a connecting rod, the limiting block is located at one end of the connecting rod, the other end of the connecting rod is an elastic part connecting end, one end of the elastic part is connected with the elastic part and is configured to have elastic potential energy for driving the limiting block into the first clamping groove, and a hinged portion is arranged between the limiting block and the elastic part connecting end.

In a preferred embodiment, the elastic member connecting end is provided with a spring accommodating groove, and one side of the elastic member connecting end away from the spring accommodating groove is provided with a stress guiding portion.

In a preferred embodiment, the central lifting mechanism at least comprises a lifting seat which is fixedly arranged, the connecting rod is hinged with the lifting seat through the hinge part, and a second clamping groove for accommodating the limiting block is arranged on the lifting seat.

In a preferred embodiment, the central lifting mechanism further includes a vertical cam located in the lifting seat and a driving motor for driving the vertical cam to rotate, and the driving portion is a pressing protrusion disposed on an outer side of the vertical cam and used for being matched with the force-bearing guide portion.

In a preferred embodiment, the central lifting mechanism further comprises a lifting rod vertically and movably connected with the lifting seat and a supporting seat arranged at the lower end of the lifting rod, and the driving portion is an extrusion portion arranged on the supporting seat and used for being matched with the stress guiding portion.

This embodiment has mahjong machine that tablet ware was scraped to rotatable formula, wherein stop gear includes stopper and elastic component, and this elastic component has and orders about the stopper gets into first draw-in groove or with the elastic potential energy of first draw-in groove separation, first draw-in groove is radial extension, and when the stopper was located first draw-in groove, the state of scraping the tablet ware was restricted, is in quiescent condition, can not be rotary motion, when stopper and first draw-in groove separation, scrape the tablet ware and can be syntropy rotary motion along with shuffling the big dish, and the radial motion control that this embodiment passes through the stopper scrapes the state of tablet ware, has simple structure, and is with low costs, controls reliable technological advantage.

Drawings

FIG. 1 is a schematic view showing a connection structure between a central lifting mechanism and a shuffling large plate of a mahjong machine with a rotatable mahjong tile scraping device according to the first embodiment and the second embodiment;

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

FIG. 3 is an exploded view of the central lift mechanism and the shuffler plate of the first embodiment;

FIG. 4 is a schematic perspective view of a center lift mechanism according to an embodiment;

FIG. 5 is an exploded view of a center lift mechanism according to an embodiment;

fig. 6 is a front view of a central elevating mechanism according to an embodiment, in which the dice tray is in an elevated 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 a central elevating mechanism according to one embodiment, in which the dice trays are 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 structural view of a lifting base according to an embodiment;

FIG. 11 is a schematic view of a lifter according to an embodiment;

FIG. 12 is a schematic view of a neutral cam according to an embodiment;

FIG. 13 is a schematic connection diagram of a second transmission mechanism according to the first embodiment;

fig. 14 is a schematic state diagram of the motion separation mechanism according to the first embodiment, in which the limiting block is disengaged from the first engaging groove;

fig. 15 is a schematic state diagram of the motion separation mechanism according to the first embodiment, in which a limiting block 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 base according to the first embodiment;

FIG. 17 is a schematic view of the structure of a shuffle platter according to the first embodiment;

FIG. 18 is a schematic top perspective view of a card scraper according to an embodiment;

FIG. 19 is a schematic bottom perspective view of a card scraper according to an embodiment;

FIG. 20 is a schematic structural view of a link and a detent spring of the motion separating mechanism according to the first embodiment;

FIG. 21 is a schematic view of the connection between the first transmission mechanism and the second transmission mechanism according to the first 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 of FIG. 21;

FIG. 24 is a schematic structural view of a lifting seat and a limiting mechanism of the mahjong machine with the rotatable tile scraper according to the second embodiment;

FIG. 25 is a schematic structural view of a vertical cam and a limiting mechanism according to a second embodiment;

FIG. 26 is a schematic structural view of a spacing mechanism in the second embodiment;

FIG. 27 is a structural diagram of a spacing mechanism in an exploded state according to the second embodiment;

FIG. 28 is a schematic view showing a connection structure between a central lifting mechanism and a shuffling large plate in the mahjong machine having a rotatable mahjong tile scraping device according to the third embodiment;

figure 29 is an exploded view of the central lift mechanism and shuffler plate shown in figure 28;

fig. 30 is a schematic structural view of the hidden card shuffling large disc and the card scraping device shown in fig. 28, wherein the limiting block is in a limiting state matched with the first card slot;

FIG. 31 is a schematic structural view of the hidden shuffler platter and the scratcher shown in FIG. 28, wherein the stopper is in an unrestrictive state disengaged from the first card slot;

fig. 32 is a schematic structural view of a central elevating mechanism in the third embodiment, in which the dice tray is in a high position;

fig. 33 is a schematic structural view of a central elevating mechanism in the third embodiment, in which the dice tray is in a low position;

fig. 34 is a schematic structural view of a motor base and a lifting base in the third embodiment;

FIG. 35 is a schematic view showing the structure of a card scraping device according to a third embodiment;

FIG. 36 is a schematic structural view of a third embodiment of a connecting rod;

FIG. 37 is a partial cross-sectional view of a limiting mechanism and a central lifting mechanism of a mahjong machine with a rotatable tile scraper according to the fourth embodiment;

FIG. 38 is a top view of the structure shown in FIG. 37;

FIG. 39 is a schematic structural view of a fourth embodiment of a limiting mechanism and a lifting base;

FIG. 40 is a schematic structural view of a fourth embodiment of a limiting mechanism;

FIG. 41 is a schematic sectional view showing a structure of a fourth embodiment of a stopper mechanism;

fig. 42 is a schematic structural view of an exploded state of the fourth embodiment of the spacing mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, 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, e.g., as being fixedly connected, integrally connected, or detachably connected; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.

Example one

As shown in FIGS. 1-3, the mahjong machine with the rotatable mahjong tile scraping device of the embodiment comprises a central lifting mechanism, a large shuffling tray 70 and the mahjong tile 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.

In this embodiment, the driving motor 30 is vertically disposed, and the output shaft 31 of the driving motor 30 is disposed coaxially with the lifting rod 20 and 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.

In this embodiment, the shuffler tray 70 shares the drive motor 30 with the lift 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, and the third transmission mechanism comprises a driving gear 34 coaxially connected with the driving gear 32 and a transmission gear/gear ring meshed with the driving gear 34, and the 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 transmission gear ring 83 for connecting with the driving 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 transmission gear ring 83 of the present embodiment is provided with the clearance 84, and when the driving gear 34 moves to the clearance 84, the transmission gear ring 83 is disengaged.

In this embodiment, in order to control the start and stop of the rotation of the card scraping device 80, a limit mechanism is particularly provided between the card scraping device 80 and the lifting base 10.

As a modification of this embodiment, the limiting mechanism includes a connecting rod 90 and an elastic member, wherein the elastic member is a position-locking spring 91.

The sleeve 85 is provided with a first engaging groove 86, the lifting base 10 is provided with a second engaging groove 14 corresponding to the first engaging groove, and the height of the second engaging groove 14 is the same as that of the first engaging groove 86.

The middle portion of the connecting rod 90 of this embodiment is provided with a hinge portion 92, which is preferably hinged with the lifting seat, and in this embodiment, the hinge portion is preferably a hinge hole, and the corresponding lifting seat is provided with a hinge shaft corresponding to the hinge hole. One end of the connecting rod 90 is provided with a limiting 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 limit block 93 is fitted with the first engaging groove 86 and the second engaging groove 14, the driving gear 34 is located at the clearance 84 of the transmission gear ring 83.

Preferably, as shown in fig. 20, a force-receiving guide portion 95 is disposed on a side of the elastic member connecting end away from the spring receiving groove 94, and a pressing protrusion 53 corresponding to the force-receiving guide portion 95 is disposed on an outer wall of the upright cam 50, where the pressing protrusion 53 is a driving portion for driving the stopper to be separated from the first engaging groove in this embodiment.

The limiting mechanism for controlling the rotation of the mahjong scraping device in the embodiment has the technical advantages of simple structure, low cost and reliable control.

The shuffling method of the mahjong machine with the rotatable mahjong scraping device 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, provided with a clamping spring, of the connecting rod to drive the limiting 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, the transmission gear ring rotates to be meshed with the driving gear, and then the limiting block is contacted with the inner wall of the sleeve under the action of elastic force;

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: when the mahjong scraping device rotates for a circle until the position of the limiting block corresponds to the position of the first clamping groove, the limiting block is driven to enter the first sliding groove under the action of elastic force, the mahjong scraping device is driven to stop rotating, and the driving gear is disengaged from the transmission 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.

Example two

In the mahjong machine with the rotatable mahjong tile scraping device, the structures of the central lifting mechanism, the mahjong tile scraping device and the large shuffling tray are the same as those in the first embodiment. The core difference of this embodiment from the first embodiment is a limiting mechanism for limiting the rotation of the card scraping device.

As a special point of this embodiment, as shown in fig. 24-27, the limiting mechanism includes a limiting seat 17 and a sliding block 171 connected with the limiting seat 17 in a sliding manner, wherein the limiting seat 17 is fixedly connected with the lifting seat 10, and the interior of the limiting seat 17 is provided with an accommodating cavity 18. The accommodating cavity 18 is internally provided with an elastic part 91 positioned between the sliding block 171 and the bottom of the accommodating cavity, the elastic part is a compression spring, and the compression spring has elastic potential energy for driving the limiting block to be separated from the first clamping groove.

Preferably, as shown in fig. 27, a spring receiving cavity 173 for receiving the elastic member is provided in the slider 171.

In this embodiment, a guide mechanism is disposed between the sliding block 171 and the limiting seat 17, and preferably, in this embodiment, the sliding guide mechanism includes a pair of guide rails 172 disposed outside the sliding block 171 and a guide groove 181 located in the accommodating cavity 18 and adapted to the guide rails 172.

In this embodiment, the stopper 93 is disposed at an end of the slider 171 facing the sleeve 85, the vertical cam 50 is provided with a ring platform 54 contacting and matching with a side of the slider away from the stopper, the ring platform 54 is provided with a recess 55, and the recess 55 is a driving portion for driving the stopper to be separated from the first card slot in this embodiment.

s10: starting the driving motor 30, driving the dice tray to ascend from a low position to a high position through the first one-way transmission part and the first transmission mechanism, when the dice tray is at the high position, the concave part 55 rotates to the position where the sliding block 171 is located, and under the action of the compression spring, the sliding block moves to be in contact with the concave part 55, namely the limiting block is 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 transmission gear ring rotates to be meshed with the driving gear;

s30: the driving motor rotates reversely relative to S20, 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, and in the process, under the action of the ring table, the end part of the limiting block is in contact with the inner wall of the sleeve;

s50: when the mahjong scraping device rotates for a circle until the position of the limiting block corresponds to the position of the first clamping groove, the limiting block is driven to enter the first sliding groove under the action of the ring table, the mahjong scraping device is driven to stop rotating, and the driving gear is disengaged from the transmission gear ring through the vacancy avoiding position; the shuffling large disc continues to rotate until the shuffling is finished.

EXAMPLE III

A mahjong machine with a rotatable mahjong tile scraping device of the embodiment comprises a central lifting mechanism, a shuffling large plate 70 and the mahjong tile scraping device 80, as shown in figures 28-29, and the difference of the embodiment from the first embodiment is that the central lifting mechanism is different.

The central lifting mechanism in this embodiment is shown in fig. 32-34, and includes a lifting base 10, a lifting rod 20, a dice tray 40, a swing link 38, and a central lifting motor 301. Wherein, the lifting seat 10 is fixedly arranged and is of an integrated forming structure with the motor seat 37. The swing link 38 is provided with a motor connecting end 381 for fixedly connecting with an output shaft of the central elevator motor 301, and the other end of the swing link 38 is provided with a supporting end 382, where the supporting end 382 may be a cylinder or a rolling body, such as a bearing.

The lifting rod 20 of this embodiment is located inside the lifting seat 10 and is axially movably connected with the lifting seat 10, so that the lifting rod can lift in a vertical direction relative to the lifting seat 10, the dice tray 40 is fixedly connected to the upper end of the lifting rod 20, the lower end of the lifting rod 20 is provided with the supporting seat 25, and the supporting end 382 of the swing rod 38 is in contact fit with the bottom end of the supporting seat 25. In the rotating process of the central lifting motor, the swing rod is driven to swing, and then the lifting rod and the dice tray are driven to lift.

In this embodiment, the shuffler platter 70 is driven independently of the central lift mechanism. As shown in fig. 28 and 29, two shuffling motors 302 are provided, the output shafts of the shuffling motors 302 are respectively connected with driving gears 32, and the two driving gears 32 are respectively engaged with the inner gear ring 71 of the shuffling large disk and used for driving the shuffling large disk to rotate.

In this embodiment, the structure of the card scraping device 80 is as shown in fig. 35, and 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, and the third transmission mechanism comprises a driving gear 34 coaxially connected with one driving gear 32 and a transmission gear/gear ring meshed with the driving gear 34, and the transmission gear/gear ring is arranged on the card scraping seat 81.

In this embodiment, in order to control the start and stop of the rotation of the mahjong tile scraping device 80, a limiting mechanism is particularly arranged between the mahjong tile scraping device 80 and the lifting seat 10, the limiting mechanism includes a connecting rod 90 and an elastic member, wherein the elastic member is a clamping spring 91, as shown in fig. 34, a connecting rod installation cavity 15 for installing the connecting rod 90 is arranged on the lifting seat, a hinge hole 16 is arranged inside the connecting rod installation cavity, and a second clamping groove 14 which is radially through is arranged on one side of the connecting rod installation cavity.

In this embodiment, the sleeve 85 is provided with the first locking groove 86, and the difference between this embodiment and the first embodiment is that the position of the first locking groove 86 is provided with the outward protruding portion, and the outward protruding portion does not directly penetrate through the sleeve wall. In this embodiment, the height of the second card slot 14 is the same as the height of the first card slot 86.

The connecting rod 90 of this embodiment is shown in fig. 36, and has a hinge portion 92 at its middle portion, which is preferably hinged to the lifting seat, and in this embodiment, is preferably a hinge shaft, which is hinged to the hinge hole 16 of the lifting seat. One end of the connecting rod 90 is provided with a limiting 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.

Preferably, as shown in fig. 36, a force-bearing guide portion 95 is disposed on a side of the elastic member connecting end away from the spring receiving groove 94, and correspondingly, as shown in fig. 32 and 33, a pressing portion 26 for cooperating with the force-bearing guide portion 95 is disposed on the supporting seat 25, and the pressing portion 26 is a driving portion for driving the limiting block to separate from the first engaging groove.

s10: starting the lifting motor 301 to drive the dice tray to ascend from a low position to a high position, when the dice tray is at the high position, the extrusion part 26 acts on the stress guide part 95 of the connecting rod to drive the limiting block to be disengaged from the first clamping groove, the state is shown in fig. 27, and in this state, the card scraper can rotate;

s20: the big disc motor 302 is started to drive the shuffling big disc to rotate, after the shuffling big disc drives the card scraping device to rotate in the same direction for a certain angle through the friction force between the shuffling big disc and the scraping arm, the positions of the first clamping groove and the second clamping groove are staggered, the transmission gear ring rotates to be meshed with the driving gear, and then the limiting block is contacted with the inner wall of the sleeve under the action of elastic force; the shuffling large 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 shuffling large disc, and the rotation speed of the card scraping device is smaller than that of the shuffling large disc;

s30: the lifting motor 301 drives the dice tray to descend from a high position to a low position;

s40: when the mahjong scraping device rotates for a circle until the position of the limiting block corresponds to the position of the first clamping groove, the limiting block is driven to enter the first sliding groove under the action of elastic force, the mahjong scraping device is driven to stop rotating, and the driving gear is disengaged from the transmission gear ring through the vacancy avoiding position; the shuffling large disc continues to rotate until the shuffling is finished.

Example four

The difference between the present embodiment and the third embodiment is that the limiting mechanism is different from the third embodiment.

As shown in fig. 37 to 42, the limiting mechanism includes a limiting seat 17 and a sliding block 171 slidably connected to the limiting seat 17, wherein the limiting seat 17 is fixedly connected to the lifting seat 10, and an accommodating cavity 18 is disposed inside the limiting seat 17. The accommodating cavity 18 is internally provided with an elastic part 91 positioned between the sliding block 171 and the bottom of the accommodating cavity, the elastic part is a compression spring, and the compression spring has elastic potential energy for driving the limiting block to enter the first clamping groove.

Preferably, as shown in fig. 42, a spring receiving cavity 173 for receiving the elastic member is provided in the slider 171.

In this embodiment, the bottom of the slider 171 is provided with a guiding portion 96, and correspondingly, the upper portion of the supporting seat 25 is provided with a pulling portion 27 for cooperating with the guiding portion 96, and the pulling portion 27 is a driving portion for driving the stopper to separate from the first engaging groove in this embodiment.

Preferably, the traction portion 27 and the guide portion 96 are provided with mutually engaging slopes, respectively.

In this embodiment, in the initial state, the limiting block 93 is located in the first engaging groove 86 of the card scraping device, and is used for limiting the rotation of the card scraping device. After the dice tray of the central elevating mechanism is raised to the high position, the traction part 27 on the support base at the bottom of the elevating rod acts on the guide part 27 to drive the stopper to move radially inwards, and the elastic part 91 is compressed. At the moment, the limiting block is disengaged from the second clamping groove, and the limitation on the circumferential direction of the card scraping device is relieved.

When the shuffling big disc rotates, the friction force between the shuffling big disc and the scraping arm drives the scraping device to rotate in the same direction for a certain angle, and then the transmission gear ring rotates to be meshed with the driving gear; the shuffling large 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 shuffling large disc, and the rotation speed of the card scraping device is smaller than that of the shuffling large disc. After the dice disk is driven by the lifting motor 301 to descend from the high position to the low position, the tile scraping device rotates for a circle until the first clamping groove reaches the position of the limiting block, the limiting block enters the first clamping groove under the action of the elastic piece 91, the tile scraping device is locked again, and the driving gear is disengaged from the transmission gear ring through the vacancy avoiding position; the shuffling large disc continues to rotate until the shuffling is finished.

In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mahjong machine with a rotatable tile scraper is characterized by at least comprising:

2. The mahjong machine with the rotatable tile scraping device according to claim 1, wherein the limiting mechanism at least comprises a limiting seat and a sliding block connected with the limiting seat in a sliding manner, the limiting block is arranged on the sliding block, and a guide mechanism is arranged between the sliding block and the limiting seat.

3. The mahjong machine with a rotatable tile scraper of claim 2, wherein the guiding mechanism comprises a guiding rail and a guiding groove which are matched with each other, and the guiding rail and the guiding groove are respectively arranged on the sliding block and the limiting seat.

4. The mahjong machine with the rotatable tile scraping device according to claim 2 or 3, wherein the central lifting mechanism at least comprises a fixedly arranged lifting seat, a vertical cam positioned in the lifting seat and a driving motor for driving the vertical cam to rotate, the limiting seat is fixedly connected with the lifting seat, the vertical cam is provided with a ring platform for contacting and matching with one side of the sliding block far away from the limiting block, the elastic member is positioned on one side of the sliding block far away from the ring platform and is configured to have elastic potential energy for driving the limiting block to be separated from the first clamping groove, and the driving part is a concave part arranged on the ring platform.

5. The mahjong machine with the rotatable tile scraping device according to claim 2 or 3, wherein the central lifting mechanism at least comprises a fixedly arranged lifting seat, a lifting rod vertically movably connected with the lifting seat and a supporting seat arranged at the lower end of the lifting rod, the elastic member is arranged between the sliding block and the lifting seat and is configured to have elastic potential energy for driving the limiting block to enter the first clamping groove, a guiding part extending downwards is arranged at one end of the bottom of the sliding block far away from the limiting block, and a traction part matched with the guiding part is arranged on the supporting seat.

6. The mahjong machine with the rotatable tile scraping device according to claim 1, wherein the limiting mechanism comprises a connecting rod, the limiting block is located at one end of the connecting rod, the other end of the connecting rod is an elastic member connecting end, one end of the elastic member is connected with the elastic member and is configured to have elastic potential energy for driving the limiting block into the first clamping groove, and a hinge portion is arranged between the limiting block and the elastic member connecting end.

7. The machine of claim 6, wherein the resilient member connecting end is provided with a spring receiving groove, and a force-receiving guide portion is provided on a side of the resilient member connecting end remote from the spring receiving groove.

8. The mahjong machine with a rotatable tile scraper of claim 7, wherein the central lifting mechanism at least comprises a fixedly arranged lifting seat, the connecting rod is hinged with the lifting seat through the hinge part, and the lifting seat is provided with a second clamping groove for accommodating the limiting block.

9. The machine of claim 8, wherein the central lifting mechanism further comprises a vertical cam disposed in the lifting base and a driving motor for driving the vertical cam to rotate, and the driving portion is a pressing protrusion disposed outside the vertical cam and engaged with the force-receiving guide portion.

10. The mahjong machine with a rotatable tile scraper of claim 8, wherein the central lifting mechanism further comprises a lifting rod vertically movably connected with the lifting seat and a supporting seat arranged at the lower end of the lifting rod, and the driving part is an extrusion part arranged on the supporting seat and used for being matched with the stress guiding part.