Mahjong machine and tile feeding assembly thereof

Abstract

The utility model discloses a mahjong machine and a tile feeding assembly thereof, a tile feeding support is provided with a tile storage groove used for storing multiple piers of mahjong tiles and a tile feeding push head used for pushing the mahjong tiles out of the tile storage groove, the tile storage groove is bent in an arc shape, and the bending angle is larger than 180 degrees. An included angle of 45-90 degrees is formed between the tile inlet direction of the tile storage groove inlet and the tile outlet direction of the tile storage groove outlet; the tile feeding push head is driven by a tile feeding driving mechanism to move to the tile outlet of the tile storage groove from the outside of the tile inlet of the tile storage groove along the tile storage groove and then return to the outside of the tile inlet of the tile storage groove; the tile storage groove comprises at least one arc-shaped bent section, and the bottom of the tile storage groove adopts an inclined supporting structure with a high outer side and a low inner side for the mahjong tiles at the position of the arc-shaped bent section, so that the mahjong tiles are centripetally inclined at the position of the arc-shaped bent section with the high outer side and the low inner side. According to the scheme, tile pushing resistance and collision noise caused by the fact that mahjong tiles move in the large-angle bent annular tile storage groove are reduced, and the service life of mahjong machine parts and the service life of the mahjong tiles are prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of mahjong machine manufacturing, and particularly relates to a mahjong machine and a card dealing assembly thereof.

Background Art

[0002] With the continuous improvement of living standards, people pay more and more attention to their leisure and entertainment life, and automatic mahjong machines that are convenient and labor-saving are gradually favored by people.

[0003] The patent document with the publication number of CN200966910Y discloses a slope card dealing device for a full-automatic mahjong machine, which has a table board with a card dealing opening in the center. Four rectangular card dealing openings in a windmill shape are arranged on the table board and are inclined at an angle with respect to the side line of the table board. There are four arc-shaped storage card slots arranged in a windmill shape under the table board. A card pushing head is installed at the end of each storage card slot, and the pushing head is connected to a pushing head motor through a card pushing steel wire rope. A supporting plate door strip is arranged at each card dealing opening. One end of the supporting plate door strip is hinged to the card dealing opening, and the other end is movably connected to a lifting mechanism. The four card dealing openings are arranged in a windmill shape, and each card dealing opening is inclined at an angle with respect to the bottom edge of the table, that is, the windmill shape is inclined. Therefore, the table top can be made smaller, and the inclination of the card strip also conforms to the habits of players. Secondly, when dealing cards, the whole card stack is not lifted onto the table top after being built, but is pushed onto the table top along the slope. Therefore, the space inside the machine can also be reduced, thereby reducing the volume of the whole machine. However, in this card dealing device, the whole storage card slot is arranged in a slope shape, the resistance during the card dealing process is large, the load of the steel wire rope motor is large, the steel wire is easy to shake and break, the card dealing process is not stable enough, the service life of the steel wire rope is low, the storage card slot, the stacking and pushing head and the conveying device (the mechanism for picking up mahjong cards from the large plate and conveying them to the stacking and pushing head) are not reasonably arranged, and it is difficult for a conventional four-sided independent stacking and pushing head to push the mahjong cards to the card inlet of the storage card slot track, and the height of the main machine is relatively high.

[0004] The patent document with the publication number of CN201783185U discloses a chain-driven slope card dealing device for a full-automatic mahjong machine, which has four liftable card lifting plates hinged to the table top. One end of each card lifting plate is a card inlet. The outer side of each card lifting plate is a conveyor belt, and a stacking and pushing mechanism is installed on one side of the conveyor belt. An arc-shaped card storage slot is arranged outside the conveyor belts on all four sides. There is a circular closed chain under the slot, and vertical chain rods are installed at set intervals on the chain. Although this card dealing device uses a chain to push mahjong cards and overcomes the problem of low service life of the steel wire rope, the machine has a large working noise and causes an increase in the plane size of the main machine, and other defects are not improved.

[0005] The patent document with the publication number CN102133480A discloses a full-automatic mahjong machine, which includes a card feeding system, a card placing system, a card lifting system and a large shuffling plate. Among them, the card placing system includes four card pushing devices, four card placing tracks and a chain drive device. Among them, the height of the card feeding system is basically flush with the height of the card lifting system. In this way, although the height of the main unit is reduced, the layout position of the card lifting system will interfere with the large plate shuffling and the card feeding system's absorption of mahjong tiles, and it is only suitable for small mahjong tiles. Moreover, the card outlet of the card feeding system and the card inlet of the card placing track are not reasonably arranged, and the card pushing device does not have a card stacking function. The mahjong tiles rely on themselves to stack on the card receiving tabletop. In this way, the stacked mahjong tiles are not neatly stacked and are prone to movement and dislocation, resulting in faults such as the mahjong tiles being unable to enter the card placing track and becoming chaotic in the card placing track. In addition, after using a horizontal card placing track, the mahjong tiles near the card outlet of the card placing track are very likely to fall out of the card outlet and fall back into the large shuffling plate; the structure of the chain and the card placing flag wheel has a large noise.

[0006] The automatic mahjong machines disclosed in the patent documents with the publication numbers CN201906453U and CN201949619U have the storage plate in the storage card track of the mahjong machine inclined, with one end butted against the card receiving plate. The card stacking push head pushes the mahjong tiles on the card receiving plate onto the storage plate. After the mahjong tiles on the storage plate are lined up in a row, the card placing push head pushes the whole row of mahjong tiles to the card placing assembly; because there is an avoidance groove provided on the card stacking push head and a push rod provided on the card placing push head, the two push heads can be arranged vertically and crosswise, so that when they push the cards respectively, they can completely avoid each other through the avoidance groove. However, because the storage card track has to pass above the conveying part of the card feeding device, the height of the main unit of the mahjong machine is relatively high (the heights of the card feeding device and the card placing device are superimposed). In addition, the L-shaped storage card track is relatively short and has poor versatility.

[0007] The automatic mahjong machines disclosed in the patent documents with the publication numbers CN103861280A and CN104645608A also have problems such as relatively high main unit height (the heights of the card feeding device and the card placing device are superimposed) and relatively short L-shaped storage card track. Moreover, after using a horizontal card placing track, the mahjong tiles near the card outlet of the card placing track are very likely to fall out of the card outlet and fall back into the large shuffling plate; using a steel wire rope to drive the card placing push head to move, the steel wire rope has serious friction with the side wall of the track and has a low service life.

[0008] The patent document with the publication number CN204699375U discloses an automatic mahjong machine with an improved structure, including a card feeding system, a card lifting system, a card rising system and a shuffling turntable. The card feeding system includes four card feeding mechanisms. Each card feeding mechanism includes a transmission frame and a conveyor belt fixed on the transmission frame. The four card feeding mechanisms are sequentially connected to form a rectangular structure, and the shuffling turntable is arranged within the four card feeding mechanisms. The card lifting tracks all adopt an entire large arc structure, which reduces the friction between the mahjong tiles and the card lifting tracks, ensuring a relatively fast card lifting speed and low card lifting noise. Moreover, the layout positions of the card lifting system and the card feeding system are designed with partial overlap avoidance, reducing the height of the main unit. However, since the card feeding device transports mahjong tiles in a straight line in and out, the card outlet of the card feeding device and the card inlet of the card lifting track still cannot be reasonably arranged. The card pushing resistance of the stacking and pushing device is large and it is prone to card jams, and the large arc-shaped card lifting track increases the size of the mahjong machine tabletop. The patent document with the publication number CN105363195A discloses a card feeding device for a mahjong machine. By reasonably adjusting the positions of the card outlet and the card inlet of the card feeding device, the card feeding channel is arc-shaped, so that the mahjong tiles sent from the card feeding device to the card receiving block of the card pushing device and the mahjong tiles pushed by the card pushing device are neat and disorder-free, with less resistance.

[0009] The patent document with the publication number CN105413161A discloses a card lifting driving mechanism, a card lifting component and a mahjong machine. The card lifting driving mechanism of this mahjong machine includes a card lifting support, a card storage slot, a card lifting guide rail, a card lifting push head and a steel wire rope. A rolling member is arranged at a position where the steel wire rope is close to the card lifting guide rail and / or the card storage slot. The rolling member is rotatably installed on the card lifting guide rail or the card lifting support. The part of the steel wire rope in the card storage slot is in rolling contact with a plurality of rolling members and maintains a gap with the side wall of the card lifting guide rail and / or the card storage slot. This solution replaces the sliding friction of the steel wire rope in the prior art with the rolling friction of the steel wire rope, greatly reducing the frictional resistance of the operation of the steel wire rope and avoiding the sliding friction contact between the part of the steel wire rope in the card storage slot and the arc-shaped curved side wall of the card lifting guide rail and / or the card storage slot, which affects the service life and operation stability of the steel wire rope.

[0010] Mahjong machines, their card-onboarding components, and card-onboarding drive mechanisms disclosed in patent documents such as Publication No. CN106075897A and CN106215413A. The card-onboarding component includes a card-onboarding bracket, on which a card storage slot, a first card-onboarding pusher, and a second card-onboarding pusher are provided. An opening is formed on the inner side wall of the middle position of the card storage slot, and the card storage slot communicates with a commutation slot through this opening. The first card-onboarding pusher is driven by the card-onboarding drive mechanism to move from outside the card inlet of the card storage slot to near the opening and then return. The second card-onboarding pusher is driven by the card-onboarding drive mechanism to move from the card outlet of the card storage slot into the commutation slot and then return. The card-onboarding drive mechanism includes a first card-onboarding push rod and a second card-onboarding push rod that reciprocate independently and cooperate with each other. The first card-onboarding pusher is arranged on the first card-onboarding push rod, and the second card-onboarding pusher is arranged on the second card-onboarding push rod. This solution uses the method of two card-onboarding push rods relaying to push the cards, completely avoiding defects such as large resistance between the card-onboarding pusher and the guide rail and large working noise of the chain in the prior art.

[0011] However, for the above-mentioned slope card-out mahjong machines in the prior art, although repeatedly researched, developed, and improved by the inventor, the following technical problems have not been completely overcome so far:

[0012] 1. In the prior art, the card-feeding device and the card-lifting component are arranged inside the card storage slot, and the card-lifting component in one set of card-picking and transporting systems is arranged inside the card-feeding device in another set of card-picking and transporting systems, so as to form an interlaced arrangement between adjacent card-picking and transporting systems to extend the length of the card storage slot. However, the number of mahjong cards that can be stored is still limited, especially for those with large volumes.

[0013] 2. Because of the interlaced arrangement between adjacent card-picking and transporting systems, the upper and lower overlapping between adjacent card-feeding devices and card-lifting components is inevitable, resulting in an increase in the overall height of the mahjong machine.

[0014] 3. Because of the interlaced arrangement between adjacent card-picking and transporting systems, restricted by the non-overlapping of the card-lifting component and the card storage slot in the vertical direction and the length of the card storage slot, the setting position of the card-lifting ports of adjacent card-picking and transporting systems is greatly restricted, affecting the use comfort of the mahjong machine. Taking a mahjong machine with a side length of 85 cm using 48 mm mahjong cards as an example, as Figure 1 shown, the four rows of mahjong card walls directly lifted onto the tabletop 11 from the square card-lifting ports 111 are arranged in a windmill shape, and the distance between the opposite two rows of mahjong card walls is 35 cm. This results in a very small area (i.e., the distance between the mahjong card wall and the table frame edge is too small) on the left side of the player where it is customary to place the pung cards and there is no space to place the cards, and the player needs to move the mahjong card wall to vacate the pung card area, affecting the use comfort.

[0015] 4. Since the adjacent card-picking and conveying systems are arranged in an interleaved manner, the arc curvature of the card storage slot is small (i.e., the card feeding direction and the card discharging direction of the card storage slot are arranged at an acute angle), and the shape is irregular. Therefore, the structure of the card feeding driving mechanism for driving the card feeding pusher in the card storage slot is complex, with high manufacturing precision requirements, limited reliability by the structure, and high manufacturing cost and use and maintenance cost.

[0016] Patent documents such as those with publication numbers CN106166379A, CN107773976A, and CN107773977A disclose an annular card pushing device and a mahjong machine for an automatic mahjong machine. It includes a motor, a turntable, a card pushing block assembly, an annular vertical track, a base, and a base annular card blocking side plate. The annular vertical track is arranged on the surface of the base. The base, the annular vertical track, and the base annular card blocking side plate form a mahjong card pushing slot. The mahjong card pushing slot is provided with a mahjong card feeding port and a mahjong card discharging port. A card pushing block assembly is arranged on the annular vertical track. The inner side of the card pushing block assembly has a card slot. The card pushing block assembly is movably inserted into the annular vertical track through the card slot. The part of the card pushing block assembly built in the mahjong card pushing slot has a card pushing arm for card pushing transmission. The motor is installed on the base and is connected and driven to the turntable. The turntable has a driving part for driving the card pushing block assembly to perform card pushing movement in the mahjong card slot. In this structure, the card pushing block is inserted into the annular vertical track and slides to push the card. The annular vertical track is composed of an arc segment and a straight segment. The card pushing block is driven by the turntable to move back and forth in the card pushing slot, and the movement path of the card pushing block is irregular. Its annular card pushing slot structure with a large-angle bend not only results in a large frictional resistance between the card pushing block and the track and a low service life of the components, but also the mahjong cards will collide and rub against the outer side wall of the annular card pushing slot under the action of centrifugal force when moving along the annular card pushing slot, and will also collide and rub against the inner side wall of the annular card pushing slot after being stressed by the outer side collision, resulting in a large card pushing resistance, a large noise, and even the mahjong cards being stuck and unable to be pushed.

[0017] Patent documents such as those with publication numbers CN106492454A, CN106512390A, CN106861176A, CN106823363A, CN106621315A, CN106669142A, CN108339265A, CN107233724A, CN108245878A, and CN117654012A disclose a mahjong machine. The four card-picking and transporting systems of this mahjong machine are independently arranged and do not intersect with each other. The card storage slot is arc-shaped and bent with a bending angle greater than 180°. The card inlet direction of the card storage slot is at an angle of 45° to 90° with the card outlet direction. In the same card-picking and transporting system: The card-lifting assembly and the card-feeding device are directly adjacent to each other inside and outside and are arranged outside the arc-shaped bend of the card storage slot. The card-lifting driving mechanism of the card-lifting push head is arranged inside the arc-shaped bend of the card storage slot. The card outlet of the card-feeding device is provided with a card-pushing device. The card-pushing direction of the card-pushing device is at an angle of 80° to 100° with the card outlet direction of the card-feeding device. The card inlet direction of the card storage slot in the card-lifting assembly is at an angle of 0° to 10° with the card-pushing direction of the card-pushing device. In this structure, the card-lifting push head is fixedly installed on the card-pushing arm, which reduces to a certain extent the risk that the card-pushing block is easily stuck on the annular vertical track during movement and the risk that the mahjong tiles are stuck and cannot be pushed due to improper thrust applied to the mahjong tiles. However, it still does not solve the problems of large card-pushing resistance, large card-pushing noise, and low service life of the components of the mahjong machine and the mahjong tiles caused by the movement of the mahjong tiles in the annular card storage slot with a large bending angle.

Summary of the Invention

[0018] In order to solve the above technical problems of the prior art, the purpose of the present utility model is to provide a mahjong machine and its card-lifting assembly, which further reduce the card-pushing resistance and collision noise caused by the movement of mahjong tiles in the annular card storage slot with a large bending angle and improve the service life of the components of the mahjong machine and the mahjong tiles.

[0019] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0020] A card-lifting assembly of a mahjong machine includes a card-lifting support. A card storage slot for storing multiple stacks of mahjong tiles and a card-lifting push head for pushing the mahjong tiles out of the card storage slot are provided on the card-lifting support. The card storage slot is arc-shaped and bent with a bending angle greater than 180°. The card inlet direction of the card storage slot is at an angle of 45° to 90° with the card outlet direction. The card-lifting push head is driven by a card-lifting driving mechanism to move along the card storage slot from the outer edge of the card inlet of the card storage slot to the card outlet of the card storage slot and then back to the outer edge of the card inlet of the card storage slot. The card storage slot includes at least one arc-shaped bending section. The bottom of the card storage slot adopts an inclined support structure with the outer side higher than the inner side at the arc-shaped bending section, so that the mahjong tiles show a centripetal inclination with the outer side higher than the inner side at the arc-shaped bending section.

[0021] Preferably, the bottom wall of the card storage slot is an inclined structure with a higher outer side and a lower inner side at the arc-shaped curved section, so that the mahjong tiles are centripetally inclined with a higher outer side and a lower inner side.

[0022] Preferably, a bottom wear-resistant sheet for contacting mahjong tiles is provided at the bottom of the card storage slot, and the bottom wear-resistant sheet is positioned in cooperation with the card loading bracket through a plurality of buckles and is locked and fixed by fasteners.

[0023] Preferably, the bottom wear-resistant sheet is provided with at least one bottom rib for contacting mahjong tiles, and the bottom rib extends along the tile storage slot and is close to the outer side of the tile storage slot, so that the mahjong tiles on the bottom wear-resistant sheet are centripetally inclined with the outer side higher and the inner side lower.

[0024] Preferably, the bottom wall of the card storage slot is an inclined structure with the outer side higher and the inner side lower at the arc-shaped curved section, and two inner and outer bottom convex ribs for contacting the mahjong tiles are provided on the bottom wear-resistant plate, so that the mahjong tiles are centripetally inclined with the outer side higher and the inner side lower at the arc-shaped curved section of the card storage slot.

[0025] Preferably, the mahjong tiles are placed flat at the entrance and exit of the card storage slot, and are centripetally inclined with the outer side higher and the inner side lower when located between the entrance and exit of the card storage slot. The angle of the centripetal inclination increases first and then decreases from the entrance to the card storage slot, and the maximum angle of the centripetal inclination does not exceed 45°.

[0026] Preferably, an outer wear-resistant sheet is installed on the outer side wall of the card storage slot, and the outer wear-resistant sheet is plug-in-and-engaged with the card loading bracket up and down through the plug-in portion and the buckle below it and is locked and fixed by fasteners.

[0027] Preferably, the outer wear-resistant sheet is arranged to be centripetally inclined, and the angle of the centripetal inclination increases first and then decreases from the card storage slot inlet to the card storage slot outlet, and the maximum angle of the centripetal inclination does not exceed 45°.

[0028] Preferably, the outer wear-resistant sheet is provided with outer convex ribs for contacting mahjong tiles, and the outer wear-resistant sheet contacts and blocks the mahjong tiles through the outer convex ribs.

[0029] Preferably, the outer wear-resistant sheet is provided with an inner convex portion near the outlet of the card storage slot, and the inner convex portion can push the mahjong tiles inwardly.

[0030] Preferably, the inner convex portion is an elastic sheet that protrudes inward from the outer wear-resistant sheet, and one end or both ends of the elastic sheet are fixedly connected to or integrally formed with the outer wear-resistant sheet.

[0031] Preferably, the inner side wall of the card storage slot is arranged to be centripetally inclined, and the angle of the centripetal inclination first increases and then decreases from the card storage slot inlet to the card storage slot outlet, and the maximum angle of the centripetal inclination does not exceed 45°.

[0032] One of the preferred solutions: On the inner side wall of the card storage slot, there are a first inner wear-resistant strip and a second inner wear-resistant strip for contacting the mahjong tiles. The first inner wear-resistant strip and the second inner wear-resistant strip extend along the movement path of the mahjong tiles in the card storage slot. The first inner wear-resistant strip is located below and blocks and contacts the lower-layer mahjong tiles from the inside, and the second inner wear-resistant strip is located above and blocks and contacts the upper-layer mahjong tiles from the inside.

[0033] Preferably, the first inner wear-resistant strip is provided with a plurality of first fixing parts protruding towards the inside of the card storage slot, and the second inner wear-resistant strip is provided with a plurality of second fixing parts protruding towards the inside of the card storage slot. On the card placement bracket, a plurality of vertical slots corresponding to the first fixing parts and the second fixing parts are opened on the inner side of the card storage slot. After the first fixing parts on the first inner wear-resistant strip and the second fixing parts on the second inner wear-resistant strip are inserted into the vertical slots, they are fixed by fasteners or snap-fixing.

[0034] Preferably, the first inner wear-resistant strip and the second inner wear-resistant strip are integrally formed on the card placement bracket by secondary injection molding.

[0035] Preferably, the width of the second inner wear-resistant strip is greater than that of the first inner wear-resistant strip, so that the upper-layer mahjong tiles are more outward relative to the lower-layer mahjong tiles. In this way, the movement stroke of the upper-layer mahjong tiles in the card storage slot is greater than that of the lower-layer mahjong tiles in the card storage slot. Therefore, when the cards are discharged in a slope, the upper-layer mahjong tiles in the first stack of mahjong tiles pushed onto the table will lag behind the lower-layer mahjong tiles by a certain distance.

[0036] Preferably, the contact position of the first inner wear-resistant strip with the lower-layer mahjong tiles is at a position between 30% and 90% of the height of the lower-layer mahjong tiles, and the contact position of the second inner wear-resistant strip with the upper-layer mahjong tiles is at a position between 40% and 90% of the height of the upper-layer mahjong tiles.

[0037] Another preferred solution: An inner wear-resistant member for blocking and contacting the mahjong tiles is installed on the inner side of the card storage slot. A number of inner convex ribs for blocking and contacting the mahjong tiles are formed on the inner wear-resistant member. The inner convex ribs extend along the movement path of the mahjong tiles in the card storage slot. The inner convex ribs protrude into the card storage slot from the inside to make the upper-layer mahjong tiles more outward relative to the lower-layer mahjong tiles. In this way, the movement stroke of the upper-layer mahjong tiles in the card storage slot is greater than that of the lower-layer mahjong tiles in the card storage slot.

[0038] Preferably, the first inner rib is located at the lower part and blocks the contact with the lower mahjong tiles from the inside, the second inner rib is located at the upper part and blocks the contact with the upper mahjong tiles from the inside, and the width of the second inner rib is greater than that of the first inner rib; the inner wear-resistant member is connected end to end to form a ring, the first inner rib and the second inner rib are arranged on the inner part of the card storage groove of the inner wear-resistant member, an inner concave opening and a card blocking part are respectively formed on the outer part of the card storage groove of the inner wear-resistant member, the inner concave opening is close to the card exit of the card storage groove, the card blocking part is close to the card entrance of the card storage groove, a card sending detection device and / or a card blocking rack are arranged on the card blocking part, and the top of the inner wear-resistant member is fixed on the upper card bracket by a fastener or a buckle.

[0039] A mahjong machine adopts the above-mentioned mahjong machine card feeding assembly.

[0040] A mahjong machine includes a central control panel assembly and a shuffling large disc located at the center of the machine frame bottom plate. Four groups of card picking and transporting systems are arranged around the shuffling large disc. The card picking and transporting system includes a card sending device for picking up mahjong tiles one by one from the shuffling large disc and sending them out, a card pushing device for stacking two mahjong tiles into a stack and pushing them out, and a slope card playing device for sending the arranged multiple stacks of mahjong tiles onto the mahjong machine table along a slope. The slope card playing device includes a card feeding assembly and a card lifting assembly; the card lifting assembly is arranged inside the card sending device in the same group of card picking and transporting systems and the two are directly adjacent inside and outside. In the same group of card picking and transporting systems: the card feeding assembly is the above-mentioned mahjong machine card feeding assembly.

[0041] Due to the adoption of the above technical solution in the present utility model, the bottom of the card storage groove adopts an inclined support structure with the outer side higher than the inner side at the arc bending section position for the mahjong tiles, so that the mahjong tiles show a centripetal inclination with the outer side higher than the inner side when passing through the arc bending section position of the card storage groove, so as to offset all or part of the centrifugal force during the rotation and movement of the mahjong tiles, thereby fundamentally reducing the collision and friction between the mahjong tiles in the card storage groove with a large-angle arc bending and the inner and outer side walls, wear-resistant sheets or wear-resistant strips of the card storage groove, reducing the pushing resistance and collision noise caused by the movement of the mahjong tiles in the annular card storage groove with a large-angle bend, and improving the service life of the components of the mahjong machine and the mahjong tiles.

Description of the Drawings

[0042] Figure 1 It is a schematic structural diagram of the mahjong machine in Embodiment 1 of the present utility model (with a cover).

[0043] Figure 2 It is a schematic structural diagram of the mahjong machine in Embodiment 1 of the present utility model (without a cover).

[0044] Figure 3 It is a schematic structural diagram of the card picking and transporting system in Embodiment 1 of the present utility model.

[0045] Figure 4 It is a schematic structural diagram of the card - placing component and the card - lifting component in Embodiment 1 of the present utility model.

[0046] Figure 5 It is a schematic structural diagram of the card - placing component in Embodiment 1 of the present utility model.

[0047] Figure 6 It is one of the perspective views of the card - placing component in Embodiment 1 of the present utility model.

[0048] Figure 7 It is the second perspective view of the card - placing component in Embodiment 1 of the present utility model.

[0049] Figure 8 It is Figure 5 the A - A cross - sectional view of

[0050] Figure 9 It is the exploded view of the card - placing component in Embodiment 1 of the present utility model.

[0051] Figure 10 It is a schematic diagram of the card - placing component in Embodiment 1 of the present utility model storing mahjong tiles.

[0052] Figure 11 It is a schematic structural diagram of the mahjong machine (without cover) in Embodiment 2 of the present utility model.

[0053] Figure 12 It is a schematic structural diagram of the card - placing component in Embodiment 2 of the present utility model.

[0054] Figure 13 It is the top view of the card - placing component in Embodiment 2 of the present utility model.

[0055] Figure 14 It is the exploded view of the card - placing component in Embodiment 2 of the present utility model.

[0056] Figure 15 It is the present utility model Figure 13 the B - B cross - sectional view of

[0057] Figure 16 It is a schematic diagram of the card - placing component in Embodiment 2 of the present utility model storing mahjong tiles.

[0058] Reference numerals:

[0059] Mahjong tiles 10, base plate 1, large card shuffling plate 2, card feeding device 3, card feeding device cover plate 300, annular housing 301, card pushing device 4, card pushing head 401, card receiving platform 402, card blocking rack 403, card placing component 5, cover 500, card placing support 501, card storage slot inlet 5011, card storage slot outlet 5012, card feeding detection device 5013, outer wear-resistant sheet 502, inner convex part 5021, insertion part 5022, outer rib 5023, card placing push rod 503, external teeth 5031, sensor 504, card placing push head 505, card placing motor 506, gear transmission mechanism 507, bottom wear-resistant sheet 508, bottom rib 5081, first inner wear-resistant strip 509, first fixing part 5091, second inner wear-resistant strip 510, second fixing part 5101, inner wear-resistant part 511, first inner rib 5111, second inner rib 5112, top 5113, card lifting component 6, card lifting support plate 601, central control panel component 7.

Detailed implementation manners

[0060] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0061] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0062] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0063] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0064] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0065] Embodiment 1:

[0066] As Figure 1 , Figure 2 and Figure 3 shown, an automatic mahjong machine includes a shuffling large plate 2 located at the center of a bottom plate 1 and a central control plate assembly 7. Four groups of card-picking and transporting systems are arranged around the shuffling large plate. The card-picking and transporting systems include a card-sending device 3 for picking up mahjong tiles one by one from the shuffling large plate and sending them out, a card-pushing device 4 for stacking two mahjong tiles into a stack and pushing them out, and a slope card-playing device for sending multiple stacks of well-arranged mahjong tiles onto the mahjong table along a slope. The slope card-playing device includes a card-playing-up component 5 and a card-lifting component 6.

[0067] The card-sending device 3 includes a card-sending box. A card-sending channel for transferring mahjong tiles is arranged in the card-sending box. A card-sucking wheel is arranged at the card-inlet of the card-sending channel. In this embodiment, a conveyor belt driven by a card-sending motor is arranged in the card-sending channel. The card-sending channel can be a straight channel, or an arc-shaped card-sending channel can be selected if it is necessary to optimize the structural layout. To ensure the reliability of mahjong tile transportation, the height of the card-outlet of the card-sending channel is not lower than that of the card-inlet of the card-sending channel. The specific structure of the card-sending device can refer to the patent document with the publication number of CN105413161A.

[0068] The card pushing device in the present embodiment can realize the stacking function, including a card pushing head 401 and a card receiving platform 402. The specific structure of the card pushing device can refer to the patent documents such as publication number CN201906453U, CN201949619U, CN103861280A and CN204699375U. Generally speaking, the card pushing device with the stacking function includes a head box, a card pushing motor is installed on the head box, a transmission mechanism is provided in the head box, a card pushing head and a card receiving platform are provided outside the head box, the card pushing motor drives the card receiving platform to move up and down through the transmission mechanism to realize the stacking of mahjong tiles, and the card pushing motor drives the card pushing head to move horizontally through the transmission mechanism to realize the ejection of stacked mahjong tiles. Of course, the card pushing device can also be other mechanisms that can realize the carrying of a pile of mahjong tiles on the card receiving platform and the pushing head ejecting a pile of mahjong tiles. A counting detection device for detecting the number of times and / or the number of pushed cards is installed on the head box, a card retaining frame 403 is provided near the card receiving platform 402, the card outlet of the card feeding device and the card retaining frame are respectively located on the two opposite sides of the card receiving platform 402, and one side of the other two opposite sides of the card receiving platform 402 is provided with a card pushing head, and the other side is an exit for the card pushing head to push mahjong cards out of the card receiving platform. In this embodiment, a card feeding detection device for detecting whether the card outlet of the card feeding device has sent mahjong cards to the card receiving platform is arranged on the card retaining frame, and can also be arranged on the side of the card receiving platform 402 where the card pushing head is arranged, so as to improve the detection accuracy and reliability, and the card feeding detection device can be installed on the extension of the card retaining frame, or on the card pushing head.

[0069] The components on the plate are as follows Figures 4 to 7 As shown, it includes a card-loading bracket 501, which is provided with a card storage slot for storing multiple mahjong tiles and a card-loading pusher 505 for pushing mahjong tiles out of the card storage slot. The card storage slot is curved in an arc shape and the bending angle is greater than 180°. The card-entry direction of the card storage slot inlet 5011 and the card-discharging direction of the card storage slot outlet 5012 are at an angle of 45° to 90°. The card-loading pusher 505 is driven by a card-loading driving mechanism to move from the card-entry port of the card storage slot to the card-discharging port of the card storage slot and then return to the card-entry port of the card storage slot. The card-loading driving mechanism of the card-loading pusher 505 is arranged inside the curved arc of the card storage slot. The card-loading driving mechanism is connected to the motor transmission, and the motor can be arranged inside the curved arc of the card storage slot, or outside the curved arc of the card storage slot. It can be an independent motor or share a motor with the card-lifting component. The card storage slot preferably stores two layers of mahjong tiles, or a single layer / single mahjong tile.

[0070] For the specific structure of the card lifting component, please refer to patent documents with publication numbers CN201906453U, CN201949619U, CN102133480A, CN103861280A, CN105413161A and CN204699375U. Generally speaking, one party's card lifting component 6 includes a card lifting bracket, a card lifting support plate 601 and a card lifting motor. The card lifting bracket is provided with a card lifting slot, the card lifting support plate is located at the upper part of the card lifting slot, and one end of the card lifting support plate (i.e., the card outlet end) is installed on the card lifting slot, and the other end of the card lifting support plate (i.e., the card inlet end) can move and is driven up and down by the card lifting drive mechanism. The card lifting bracket is also provided with a sensor for detecting the position of the card lifting support plate, for example, two upper and lower Hall elements or photoeyes.

[0071] In the present embodiment, the four groups of pick-up and transport systems of the mahjong machine are independently arranged, and there is no interlaced arrangement, that is, the card-raising assembly is arranged on the inner side of the card-feeding device in the pick-up and transport system of the same group and the two are directly adjacent inside and outside, in the same group of pick-up and transport system: the card-raising assembly 6 is arranged on the inner side of the card-feeding device 3, the card-raising assembly 6 and the card-feeding device 3 are arranged outside the arc-shaped bending of the card storage slot, the card-loading driving mechanism of the card-loading pusher 505 is arranged inside the arc-shaped bending of the card storage slot, the card-discharging direction of the card-feeding device 3 and the card-feeding direction of the card-raising assembly 6 are at an angle of 135° to 180°, and the card-pushing device 4 is arranged at the card-discharging port of the card-feeding device 3, and the card-pushing device 4 pushes the mahjong tiles into the card storage slot to complete the mahjong tile storage. When loading the tiles, one end of the card-raising support plate 601 drops, and the card-loading pusher 505 moves in the card storage slot in a counterclockwise direction to push the mahjong tiles in the card storage slot onto the card-raising support plate 601 and the mahjong machine desktop.

[0072] In this way, the four sets of card picking and transporting systems are independently arranged without being staggered with each other, which has the following advantages:

[0073] 1. The card feeding device and the card lifting assembly in the same group of card picking and transporting systems are directly adjacent to each other inside and outside, so that the card storage slot is curved in a large angle, which extends the length of the card storage slot and increases the storage quantity of mahjong tiles in the card storage slot.

[0074] 2. The card lifting component and the card feeding device in the same card picking and transporting system are arranged outside the arc-shaped bend of the card storage slot, and the card loading drive mechanism of the card loading push head is arranged inside the arc-shaped bend of the card storage slot, so that there is no vertical overlap between the card loading component and the card feeding device, and there is no vertical overlap between the card feeding device and the card lifting component, or there is only a small amount of overlap between the card outlet end of the card lifting component and the card feeding device, thereby avoiding the problem in the prior art that the vertical overlap of related device components significantly increases the height of the whole mahjong machine due to the staggered arrangement of adjacent card picking and transporting systems. Compared with the machine in the prior art in which the card storage slot is stacked on the card feeding device, the overall height of the machine can be reduced accordingly.

[0075] 3. The card lifting assembly and card feeding device in the same group of card picking and transporting systems are arranged outside the arc-shaped curve of the card storage slot, and the card loading drive mechanism of the card loading push head is arranged inside the arc-shaped curve of the card storage slot, so that the arc-shaped curve of the card storage slot is closer to a circular arc. In this way, the card loading drive mechanism drives the card loading push head to move in the card storage slot with less resistance to pushing cards, and the force required to be applied in each stage of the movement is more uniform. The motor load of the card loading drive mechanism is smaller, the transmission structure is simpler, the reliability is better, and the manufacturing cost and the use and maintenance cost are reduced.

[0076] 4. The adjacent card picking and transporting systems are independent of each other and are not staggered, so that the card raising port setting of the mahjong tabletop is no longer restricted by the position and length of the card storage slot. In this way, the position of the card raising port can be moved inward, so that the setting space of the card loading component is larger, the arc radius of the card storage slot can be larger, and the card storage slot is longer and the number of stored cards is larger. Taking the 85cm square mahjong machine using the structure of the utility model, using 48mm mahjong tiles as an example, the four rows of mahjong tiles on the tabletop 11 are directly raised from the four-sided card raising port 111 to form a windmill shape, and the spacing between the two opposite rows of mahjong tiles (i.e., the two opposite card raising ports) is 30.5cm. According to the size of the mahjong tiles, this spacing can be reduced to 30.5±1cm, so that the area on the left hand side where the player is accustomed to placing the bar tiles will be larger, and it is easier to place mahjong tiles. The player does not need to deliberately move the mahjong tile wall to empty the bar tile area, and the user experience and comfort are better.

[0077] In addition, the four sets of card picking and handling systems are set up independently, and a large space can be left between two adjacent card loading components. In this way, the control mainboard, transformer and large plate motor originally placed in the electrical box under the bottom plate of the mahjong machine can be placed in the gap between the two card loading components outside the shuffling large plate, which can make the electrical box smaller and thinner. In the central control structure scheme using the flat door structure, the electrical box can be removed, which greatly reduces the height and manufacturing cost of the mahjong machine host, making the electrical box in the four-legged mahjong machine almost invisible. The smaller and thinner electrical box makes the user experience and comfort better.

[0078] In this embodiment, the card - placing driving mechanism is a card - placing push rod 503 that rotates around a fixed point. A card - placing push head 505 is installed on the card - placing push rod 503. The card - placing push rod 503 is in transmission connection with a card - placing motor 506 through a gear transmission mechanism 507. In other embodiments, the card - placing push rod 503 can be directly fixed on the output shaft of the card - placing motor 506, or can be in transmission connection with the motor through a chain transmission mechanism, a synchronous belt transmission mechanism or a connecting rod transmission mechanism, etc. It can also share a motor with the card - lifting assembly, the card - feeding device or the card - pushing device. In this embodiment, a single push rod is used to push the cards. The rotation center of the card - placing push rod is concentric with the arc - bending center of the card storage slot. In this way, the direction of the thrust is basically in the tangential direction of the arc, which is basically coincident with the movement direction. It can make the thrust smaller (reduce the component force) under the same shape, the motor load is smaller, and the reliability is better. In this embodiment, external teeth 5031 are provided at the base of the card - placing push rod 503, and the external teeth 5031 are meshed and driven with a small gear on the output shaft of the card - placing motor 506. A sensor 504 for detecting the position of the card - placing push head 505 is also provided on the card - placing bracket 501.

[0079] In this embodiment, the card storage slot is arc - bent and the bending angle is 185° - 330°. The card - feeding direction at the inlet of the card storage slot and the card - discharging direction at the outlet of the card storage slot form an included angle of 45° to 90°. The base of the card storage slot is formed on the card - placing bracket 501. The card storage slot includes at least one arc - bent section and at least one straight - line section. The outlet of the card storage slot is preferably a straight - line section to facilitate connection with the slope formed by the descent of the card - lifting tray.

[0080] In order to reduce the frictional resistance between the mahjong tiles and the bottom of the card storage slot without significantly increasing the cost, a bottom wear - resistant sheet 508 is provided at the bottom of the card storage slot. The bottom wear - resistant sheet 508 is preferably made of a material with a smooth and wear - resistant surface, such as polyoxymethylene, polytetrafluoroethylene, etc. The bottom wear - resistant sheet 508 is installed as an independent component in the card storage slot of the card - placing bracket, and the card - placing bracket is made of a material with poor performance and low price. This can not only meet the usage requirements, but also reduce the manufacturing cost of the machine. The bottom wear - resistant sheet is preferably positioned by cooperating with the card - placing bracket through a plurality of buckles and locked and fixed by fasteners for convenient installation.

[0081] For the convenience of description, the side close to the center of the arc - bent card storage slot is defined as the inner side, and the side far from the center of the arc - bent card storage slot is defined as the outer side. In order to reduce the collision frictional resistance and noise between the mahjong tiles and the inner and outer side walls of the card storage slot (especially the side walls of the arc - bent section) without significantly increasing the cost, wear - resistant sheets or wear - resistant strips for contacting the mahjong tiles are provided on both the inner and outer sides of the card storage slot. The wear - resistant sheets or wear - resistant strips are preferably made of a material with a smooth and wear - resistant surface, such as polyoxymethylene, polytetrafluoroethylene, etc. The wear - resistant sheets or wear - resistant strips are fixedly connected with the card - placing bracket by cooperating and positioning, or integrally formed on the card - placing bracket for convenient installation and manufacturing.

[0082] In order to further reduce the collision and friction between the mahjong tiles in the card storage groove with a large-angle arc bend and the side walls, wear-resistant sheets or wear-resistant strips on the inner and outer sides of the card storage groove, the preferred solution is that the bottom of the card storage groove adopts an inclined support structure with a higher outer side and a lower inner side at the arc bend position, so that the mahjong tiles show a centripetal inclination with a higher outer side and a lower inner side when passing through the arc bend position of the card storage groove, so as to offset all or part of the centrifugal force during the rotation and movement of the mahjong tiles, thereby fundamentally reducing the collision friction and noise. In a preferred embodiment, the bottom wall of the card storage groove is an inclined structure with a higher outer side and a lower inner side at the arc bend position, so that the mahjong tiles show a centripetal inclination with a higher outer side and a lower inner side. In other embodiments, the bottom inclined structure of the card storage groove at the arc bend position can also be formed by a bottom wear-resistant sheet, and the outer part of the bottom wear-resistant sheet is thick and the inner part is thin, so that the mahjong tiles on it show a centripetal inclination with a higher outer side and a lower inner side. Further preferably, at least one bottom rib 5081 for contacting the mahjong tiles is provided on the bottom wear-resistant sheet, and the bottom rib 5081 extends along the card storage groove and is close to the outer side of the card storage groove, so that the mahjong tiles on the bottom wear-resistant sheet show a centripetal inclination with a higher outer side and a lower inner side. As Figure 9 shown, in this embodiment, the bottom wall of the card storage groove is an inclined structure with a higher outer side and a lower inner side at the arc bend position, and two inner and outer bottom ribs 5081 for contacting the mahjong tiles are provided on the bottom wear-resistant sheet 508, so that the mahjong tiles show a centripetal inclination with a higher outer side and a lower inner side at the arc bend position of the card storage groove, as Figure 10 shown.

[0083] In this embodiment, the card storage groove inlet 5011 needs to cooperate with the card pushing device 4, so the card storage groove inlet 5011 is flat, and the heights of the inner and outer sides of the mahjong tiles at this place are the same; the card storage groove outlet 5012 needs to cooperate with the card lifting tray 601, so the card storage groove outlet 5012 is also flat, and the heights of the inner and outer sides of the mahjong tiles at this place are the same. Therefore, in this embodiment, it is preferred that the mahjong tiles are placed flat at the card storage groove inlet 5011 and the card storage groove outlet 5012, and show a centripetal inclination with a higher outer side and a lower inner side at the position between the card storage groove inlet 5011 and the card storage groove outlet 5012. The centripetal inclination angle first increases and then decreases from the card storage groove inlet 5011 to the card storage groove outlet 5012, and the maximum centripetal inclination angle does not exceed 45°, and further preferably does not exceed 15°. In this way, not only can the collision and friction between the mahjong tiles and the side walls, wear-resistant sheets or wear-resistant strips on the inner and outer sides of the card storage groove be reduced to the greatest extent, but also the cooperation and connection between the card storage groove and the card pushing device 4 and the card lifting assembly 6 are facilitated, and the forming and manufacturing of the card placing bracket are also facilitated.

[0084] As Figures 4 to 7As shown, in the present embodiment, an outer wear-resistant sheet 502 is preferably installed on the outer side wall of the card storage slot, and the outer wear-resistant sheet 502 is plugged and connected with the card loading bracket 501 through the plug-in portion 5022 and the buckle below it and is locked and fixed by fasteners. In this way, the outer wear-resistant sheet is manufactured as an independent component and can be quickly positioned and installed in the card storage slot of the card loading bracket, which is easy to assemble and has low manufacturing cost.

[0085] In order to avoid collisions and noise caused by excessive movement space of mahjong tiles in the card storage slot, in this example, the outer wear-resistant plate 502 is not arranged upright, but is arranged centripetally inclined. The centripetal inclination angle increases first and then decreases from the card storage slot inlet 5011 to the card storage slot outlet 5012. The maximum centripetal inclination angle does not exceed 45°, and is further preferably not more than 15°.

[0086] In order to reduce the movement resistance of the mahjong tiles in the tile storage slot, the outer wear-resistant sheet 502 is provided with an outer convex rib 5023 for contacting the mahjong tiles, and the outer wear-resistant sheet 502 contacts and blocks the mahjong tiles through the outer convex rib 5023. In this way, the contact area between the mahjong tiles and the outer wear-resistant sheet 502 can be reduced, thereby reducing the movement resistance of the mahjong tiles.

[0087] Preferably, in this embodiment, the outer wear-resistant sheet 502 is provided with an inner protrusion 5021 near the card storage slot outlet 5012, and the inner protrusion 5021 can push the mahjong tiles inwardly, thereby increasing the movement resistance of the mahjong tiles at the card storage slot outlet 5012, and preventing the mahjong tiles from falling back onto the shuffling plate from the card storage slot outlet 5012 when the card lifting support plate does not descend.

[0088] In this embodiment, the inner convex part 5021 is an elastic piece that is tilted inward from the outer wear-resistant sheet 502, and one end or both ends of the elastic piece are fixedly connected or integrally formed with the outer wear-resistant sheet 502. This can not only increase the moving resistance of the mahjong tiles at the exit of the storage slot to prevent them from falling, but also does not affect the sloped card output, and the manufacturing cost is low.

[0089] This embodiment is preferred, as Figures 7 to 10 As shown, the inner side wall of the card storage slot is not arranged upright, but is arranged to be inclined toward the heart, and the angle of the inclination increases first and then decreases from the card storage slot inlet 5011 to the card storage slot outlet 5012, and the maximum inclination angle does not exceed 45 degrees, and is further preferably not more than 15 degrees. This can not only avoid oblique collisions and noise caused by excessive activity space of mahjong tiles in the card storage slot, but also facilitate the molding and manufacturing of the card loading bracket, thereby reducing the manufacturing cost.

[0090] Preferably, in this embodiment, a first inner wear-resistant strip 509 and a second inner wear-resistant strip 510 for contacting the mahjong tiles are provided on the inner side wall of the card storage slot. The first inner wear-resistant strip 509 and the second inner wear-resistant strip 510 extend along the moving path of the mahjong tiles in the card storage slot. The first inner wear-resistant strip 509 is located below and contacts and blocks the lower-layer mahjong tiles from the inside, and the second inner wear-resistant strip 510 is located above and contacts and blocks the upper-layer mahjong tiles from the inside. In this way, the inner side wall of the card storage slot no longer contacts the mahjong tiles and is no longer used for inner blocking of the mahjong tiles. Instead, the inner wear-resistant strips are used for contacting and blocking the mahjong tiles, which has several advantages: First, it reduces the contact area between the mahjong tiles and the inner side of the card storage slot, not only reducing the moving resistance of the mahjong tiles, but also reducing collisions and noise. Second, the relative positions of the upper and lower layers of mahjong tiles and the gaps between them and the inner and outer sides of the card storage slot can be adjusted accurately and at low cost to minimize the collisions, resistance, and noise between the mahjong tiles and the card storage slot. Third, it enhances the versatility of the card feeding assembly. On the same card feeding bracket, the width of the card storage slot can be adjusted by installing inner wear-resistant strips with different widths to be suitable for mahjong tiles of different sizes. Fourth, it reduces the forming difficulty and manufacturing cost of the card feeding bracket.

[0091] Preferably, in this embodiment, a plurality of first fixing parts 5091 protruding towards the inside of the card storage slot are provided on the first inner wear-resistant strip 509, and a plurality of second fixing parts 5101 protruding towards the inside of the card storage slot are provided on the second inner wear-resistant strip 510. A plurality of vertical slots corresponding to the first fixing parts 5091 and the second fixing parts 5101 are opened on the inner side of the card storage slot on the card feeding bracket 501. After the first fixing parts 5091 on the first inner wear-resistant strip 509 and the second fixing parts 5101 on the second inner wear-resistant strip 510 are embedded in the vertical slots, they are fixed by fasteners or snap fixation, which is convenient for installation and has a low manufacturing cost. In other embodiments, the first inner wear-resistant strip 509 and the second inner wear-resistant strip 510 can also be integrally formed on the card feeding bracket by secondary injection molding.

[0092] As Figure 10 shown, preferably, in this embodiment, the width of the second inner wear-resistant strip 510 is greater than that of the first inner wear-resistant strip 509, so that the upper-layer mahjong tiles are more outward relative to the lower-layer mahjong tiles. In this way, the moving stroke of the upper-layer mahjong tiles in the card storage slot is greater than that of the lower-layer mahjong tiles in the card storage slot. Therefore, when the mahjong tiles are discharged along the slope, the upper-layer mahjong tiles in the first stack of mahjong tiles pushed onto the tabletop will lag behind the lower-layer mahjong tiles by a certain distance, which can avoid the problem that the first stack of mahjong tiles jumps when crossing the hinge position between the card lifting tray and the mahjong machine tabletop, resulting in the displacement or even overturning of the upper mahjong tiles, and ensure the neatness of the mahjong tile wall lifted onto the mahjong machine tabletop.

[0093] Accordingly, an upper and lower dislocation design is also formed on the outer side wall of the card storage slot or on the outer wear-resistant piece, so that the upper mahjong tiles are more outward relative to the lower mahjong tiles, and the moving stroke of the upper mahjong tiles in the card storage slot is greater than that of the lower mahjong tiles in the card storage slot. This upper and lower dislocation design can be formed by upper and lower layered step portions on the outer side wall of the card storage slot or on the outer wear-resistant piece. The outer side wall of the card storage slot or the outer wear-resistant piece (corresponding to the upper mahjong tiles) above the step portion is more outward relative to the outer side wall of the card storage slot or the outer wear-resistant piece below the step portion. It can also be that upper convex ribs and lower convex ribs extending along the moving path of the mahjong tiles in the card storage slot are provided on the outer side wall of the card storage slot or on the outer wear-resistant piece. The upper convex ribs contact and block the upper mahjong tiles, and the lower convex ribs contact and block the lower mahjong tiles. All or part of the lower convex ribs protrude inward from the upper convex ribs, so that the upper mahjong tiles are more outward relative to the lower mahjong tiles, thereby making the moving stroke of the upper mahjong tiles in the card storage slot greater than that of the lower mahjong tiles in the card storage slot. As Figure 10 shown, in this embodiment, preferably, the outer wear-resistant piece 502 is fixed on the outer side wall of the card storage slot. The upper part of the outer wear-resistant piece 502 is used to block and contact the upper mahjong tiles, and the lower part of the outer wear-resistant piece 502 shrinks to form an inwardly protruding convex rib to block and limit the lower mahjong tiles, so that the moving stroke of the upper mahjong tiles in the card storage slot is greater than that of the lower mahjong tiles in the card storage slot.

[0094] In this embodiment, preferably, when the card storage slot stores mahjong tiles, the contact position between the first inner wear-resistant strip 509 and the lower mahjong tiles is at a position between 30% and 90% of the height of the lower mahjong tiles, and the contact position between the second inner wear-resistant strip 510 and the upper mahjong tiles is at a position between 40% and 90% of the height of the upper mahjong tiles. In this way, when rotating and pushing the cards, the moving resistance, collision and noise of the mahjong tiles can be minimized.

[0095] Preferably, in this embodiment, a playing card exit ramp for lifting the mahjong tiles is provided near the playing card exit of the card storage slot. This not only effectively prevents the mahjong tiles near the playing card exit in the card storage slot from falling back into the large shuffling tray during the card pushing process of the card pushing device, but also does not excessively increase the card loading resistance of the card loading pusher head. In addition, to a certain extent, the provision of a ramp in the card storage slot can also play a role in extending the length of the card lifting tray in the card lifting assembly and reducing the inclination of the card lifting tray, thereby reducing the card loading resistance. The playing card exit ramp can be formed at the bottom of the card storage slot, but is preferably provided on the wear-resistant sheet at the bottom of the card storage slot, that is, the wear-resistant sheet at the bottom of the card storage slot forms a playing card exit ramp capable of lifting the mahjong tiles near the playing card exit of the card storage slot. The wear-resistant sheet at the bottom of the card storage slot forms an inlet slope at the card inlet of the card storage slot to facilitate the entry of mahjong tiles. To prevent faults such as arching and jumping of the mahjong tiles in the card storage slot during the card pushing process of the card pushing device, a cover 500 for restricting the card storage height of the card storage slot is installed above the card storage slot on the card loading support 501, and the cover 500 covers the entire top of the card storage slot.

[0096] To prevent the mahjong tiles lifted onto the mahjong machine table from shifting up and down, the horizontally moving card loading pusher head has multiple card pushing parts, and these multiple card pushing parts respectively contact two mahjong tiles stacked vertically in the same stack. Among them, the card pushing part in contact with the lower mahjong tile protrudes from the card pushing part in contact with the upper mahjong tile. In this way, when the card loading pusher head pushes multiple stacks of mahjong tiles horizontally, the upper mahjong tiles lag behind the lower mahjong tiles. When the card loading pusher head pushes the last stack of mahjong tiles onto the inclined card lifting tray, the upper mahjong tiles are flush with the lower mahjong tiles.

[0097] To prevent the card loading pusher head from colliding with the card pushing head 401 in the card pushing device outside the card inlet of the card storage slot and at the same time prevent blocking the mahjong tiles sent by the card feeding device, the card loading pusher head 505 and the card pushing head 401 in the card pushing device adopt a staggered avoidance design and are arranged on one side of the card receiving table 402 together with the card pushing head 401 before card loading. To prevent the mahjong tiles pushed by the card pushing device from being easily scattered and jammed, the card inlet direction of the card storage slot and the card exit direction of the card feeding device outlet are arranged at an angle of 80° to 100°, and the card pushing direction of the card pushing head 401 of the card pushing device 4 is coordinated with the card inlet direction of the card storage slot.

[0098] The card blocking frame 403 in the card pushing device can be fixedly connected or integrally formed with the card loading support. The card feeding box, card loading support, and card lifting support in the four-direction card picking and transporting system can be fixedly connected or several of them can be integrally formed. In this embodiment, a ring-shaped housing 301 formed by four-direction integral molding is used as the installation base for the four-direction card feeding device and the four-direction card lifting assembly, which is convenient for assembly and has a simple and reliable structure.

[0099] In this embodiment, the above-mentioned card-lifting push rod 503 can swing back and forth or rotate in one direction. Thus, an opening is formed on the outer side wall of the card-lifting slot of the card-lifting assembly 6 for the card-lifting push head and the card-lifting push rod to pass through. That is to say, the card-lifting push head can rotate in a one-way cycle, so that the slope card-dealing mahjong machine can achieve card-lifting in stages. The card-lifting process in stages is as follows: After the card-pushing device pushes six stacks or twelve mahjong tiles into the card-storing slot of the slope card-dealing device, the card-lifting push head enters and stays in the card-storing slot. In this way, there are six stacks or twelve mahjong tiles in front of the card-lifting push head, and the remaining mahjong tiles are pushed into the card-storing slot by the card-pushing device again, so that the card-lifting push head is clamped between the front and rear rows of mahjong tiles; When the mahjong machine receives the first card-lifting signal, the card-lifting tray of the card-lifting device descends. The card-lifting push head first pushes the six stacks or twelve mahjong tiles in front of it onto the card-lifting tray. The card-lifting tray rises to lift these mahjong tiles onto the tabletop. The card-lifting push head moves to the outside of the inlet of the card-storing slot through the opening on the side wall of the card-lifting slot; After the player takes away six stacks or twelve mahjong tiles from each of the four directions on the tabletop, when the mahjong machine receives the second card-lifting signal, the card-lifting tray descends again. The card-lifting push head enters the card-storing slot again to push the remaining mahjong tiles onto the card-lifting tray. The card-lifting tray rises to lift the mahjong tiles onto the tabletop. The card-lifting push head moves to the outside of the inlet of the card-storing slot through the avoidance opening on the side wall of the card-lifting slot again, waiting for the next card-lifting. In this way, by adopting card-lifting in stages, the player can start playing cards by standing up the six stacks or twelve mahjong tiles of the first card-lifting, saving the process of manual card-sorting and arrangement. The player's operation is simpler and more convenient, and the entertainment experience is better. Moreover, by adopting card-lifting in stages, while the six stacks or twelve mahjong tiles or other set numbers of mahjong tiles are being lifted for the first time, the card-feeding device and the card-pushing device can continue to send the mahjong tiles into the card-storing slot for storage. In this way, the card-storing slot does not need to store all the mahjong tiles required by one side at one time, and only needs to store the number of mahjong tiles for one card-lifting. Therefore, the length of the card-storing slot can be greatly shortened, and then the layout of the mahjong machine main body can be made more flexible and compact, the volume of the mahjong machine can be made smaller, or larger mahjong tiles can be used on the mahjong machine of the same volume.

[0100] The above-mentioned mahjong machine can also adopt one-time card-lifting, that is, the card-pushing device pushes all the mahjong tiles of one side (for example, 18 stacks for each of the four sides) into the card-storing slot of the card-lifting assembly at one time. The card-lifting push head 505 is located outside the card-inlet of the card-storing slot; When the mahjong machine receives the card-lifting signal, the card-lifting tray in the card-lifting assembly descends. The card-lifting push head 505 in the card-lifting assembly pushes the mahjong tiles in the card-storing slot out to the card-lifting tray 601 in the card-lifting assembly for card-lifting under the drive of the card-lifting drive mechanism. After the card-lifting is completed, the card-lifting tray rises to be flush with the mahjong machine tabletop.

[0101] The licensing bracket 501 is provided with sensors 504 for detecting the licensing push rod 503 or the licensing push head 505 and / or the position state of the mahjong tiles: In the licensing component using the one-time licensing method, at least two sensors are required, which are respectively used to detect the position information of the licensing push head when it stays outside the card inlet of the card storage slot waiting for pushing the cards, and the position information of the licensing push head when it stays at the card outlet of the card storage slot waiting for the card lifting tray to lift the mahjong tiles onto the tabletop; in the licensing component using the phased licensing method, at least three sensors are required, which are respectively used to detect the position information of the licensing push head when it stays outside the card inlet of the card storage slot waiting for pushing the cards, the position information of the licensing push head when it stays inside the card storage slot waiting for the first licensing signal, and the position information of the licensing push head when it stays at the card outlet of the card storage slot waiting for the card lifting tray to lift the mahjong tiles onto the tabletop. In this way, the accurate position of the licensing push head is determined by the sensors, with timely feedback, convenient control, accurate actions, and reduced faults.

[0102] The above-mentioned sensor for detecting the licensing push head can be a direct detection method or an indirect detection method. For example, the position of the driving mechanism of the licensing push head is detected to obtain the corresponding position information of the licensing push head, such as detecting the position information of the licensing push rod to obtain the position information of the licensing push head. Another example is to use a stepping motor or a motor with a built-in position sensor, and record the rotation stroke information of the motor to calculate the position information of the licensing push head. The above-mentioned sensors can be various proximity sensors such as Hall sensors, photoelectric sensors, and ultrasonic sensors, or various contact sensors such as limit switches.

[0103] The above-mentioned first licensing signal is generally generated by a player pressing a control button. The above-mentioned second licensing signal can be generated by a player pressing a control button or by a sensor that can detect whether the player has taken away the mahjong tiles on the card lifting tray. The sensor can be an optical eye or a gravity sensor set on the card lifting tray 601. The sensor can also be other sensors set on the tabletop or the licensing bracket for detecting the action state and / or load-bearing state of the card lifting tray.

[0104] Embodiment 2:

[0105] As Figure 11 An automatic mahjong machine as shown includes a shuffling large plate 2 and a central control plate assembly 7 located at the center of the bottom plate 1. Four groups of card picking and transporting systems are arranged around the shuffling large plate. The card picking and transporting system includes a card sending device 3 for picking up mahjong tiles one by one from the shuffling large plate and sending them out, a card pushing device 4 for stacking two mahjong tiles into a stack and pushing them out, and a ramp card playing device for sending the arranged multi-stack mahjong tiles along the ramp onto the mahjong tabletop. The ramp card playing device includes a licensing component 5 and a card lifting component 6.

[0106] The present embodiment is different from the embodiment 1 only in the specific structure of the card loading assembly, and the other device structures of the mahjong machine are the same as those of the embodiment 1. The specific structure of the card loading assembly of the present embodiment is described as follows:

[0107] like Figures 12 to 15 As shown, in this embodiment, the card loading component includes a card loading bracket 501, and the card loading bracket 501 is provided with a card storage slot for storing multiple piles of mahjong tiles and a card loading pusher 505 for pushing the mahjong tiles out of the card storage slot, the card storage slot is curved in an arc shape and the bending angle is greater than 180°, the card input direction of the card storage slot inlet 5011 and the card output direction of the card storage slot outlet 5012 are at an angle of 45° to 90°, the card loading pusher 505 is driven by a card loading drive mechanism to move from the outer edge of the card input port of the card storage slot to the card output port of the card storage slot and then back to the outside of the card input port of the card storage slot, and the card loading drive mechanism of the card loading pusher 505 is arranged inside the arc curve of the card storage slot.

[0108] In this embodiment, the card loading drive mechanism is a card loading push rod 503 rotating around a fixed point, a card loading push head 505 is installed on the card loading push rod 503, and the card loading push rod 503 is connected to the card loading motor 506 through a gear transmission mechanism 507. The various transmission connection modes of the card loading drive mechanism and the motor and the motor installation position mode are the same as those in Example 1, and can be referred to Example 1, and will not be repeated.

[0109] In this embodiment, the card storage slot preferably stores two layers of mahjong tiles, and can also store a single layer / single mahjong tile. The card storage slot is curved in an arc shape with a bending angle of 185° to 330°. The card inlet direction of the card storage slot inlet and the card outlet direction of the card storage slot outlet are at an angle of 45° to 90°. The base of the card storage slot is formed on the card loading bracket 501. The card storage slot includes at least one arc-shaped curved section and at least one straight section. The card storage slot outlet is preferably a straight section to facilitate the connection with the slope formed by the descending card lifting support plate.

[0110] In order to reduce the friction resistance between the mahjong tiles and the bottom of the card storage slot without significantly increasing the cost, the bottom of the card storage slot is provided with a bottom wear-resistant sheet 508, which is preferably made of a material with a smooth surface and wear resistance, such as polyoxymethylene, polytetrafluoroethylene, etc. The bottom wear-resistant sheet 508 is installed in the card storage slot of the card loading bracket as an independent component, and the card loading bracket is made of a material with poor performance and low price, which can not only meet the use needs, but also reduce the machine manufacturing cost. The bottom wear-resistant sheet is preferably positioned with the card loading bracket through multiple buckles and locked and fixed by fasteners to facilitate installation.

[0111] For the convenience of description, the side close to the center position of the arc-shaped curved card storage groove is defined as the inner side, and the side far from the center position of the arc-shaped curved card storage groove is defined as the outer side. In order to reduce the collision friction resistance and noise between the mahjong tiles and the inner and outer side walls of the card storage groove (especially the side walls of the arc-shaped curved section), and at the same time not significantly increase the cost, wear-resistant sheets or wear-resistant strips for contacting the mahjong tiles are provided on both the inner and outer sides of the card storage groove. The wear-resistant sheets or wear-resistant strips are preferably made of materials with smooth and wear-resistant surfaces, such as polyoxymethylene, polytetrafluoroethylene, etc. The wear-resistant sheets or wear-resistant strips are fixedly connected with the upper card support in a coordinated manner for positioning, or integrally formed on the upper card support to facilitate installation and manufacturing.

[0112] To further reduce the collision friction between the mahjong tiles in the card storage groove with a large-angle arc-shaped bend and the inner and outer side walls of the card storage groove, as well as the wear-resistant sheets or wear-resistant strips, the preferred solution is that the bottom of the card storage groove adopts an inclined support structure with the outer side higher than the inner side at the arc-shaped curved section, so that the mahjong tiles show a centripetal inclination with the outer side higher than the inner side when passing through the arc-shaped curved section of the card storage groove, in order to offset all or part of the centrifugal force during the rotational movement of the mahjong tiles, thereby fundamentally reducing the collision friction and noise. As Figure 15 、 Figure 16 shown, in this embodiment, the bottom inclined structure of the card storage groove at the arc-shaped curved section is formed by the bottom wear-resistant sheet 508. The outer part of the bottom wear-resistant sheet 508 is thick and the inner part is thin, so that the mahjong tiles thereon show a centripetal inclination with the outer side higher than the inner side. A plurality of bottom ribs 5081 for contacting the mahjong tiles are provided on the bottom wear-resistant sheet 508. The bottom ribs 5081 extend along the card storage groove, and the bottom ribs close to the outer side of the card storage groove are higher than the bottom ribs close to the inner side of the card storage groove. In this way, by setting the bottom ribs with different inner and outer heights, the mahjong tiles on the bottom wear-resistant sheet 508 show a centripetal inclination with the outer side higher than the inner side. The bottom wear-resistant sheet 508 can be composed of multiple segments. As Figure 14 shown, in this embodiment, the inlet section and the outlet section 512 of the bottom wear-resistant sheet 508 are independently provided. In this way, not only can they be independently designed, formed and manufactured, with convenient adjustment, better versatility and lower cost, but also the wear-resistant sheets of the inlet section and the outlet section are independently formed, and the surface smoothness is also better.

[0113] In this embodiment, the card storage slot inlet 5011 needs to cooperate with the card pushing device 4, so the card storage slot inlet 5011 is flat, and the inner and outer sides of the mahjong tiles are at the same height; the card storage slot outlet 5012 needs to cooperate with the card lifting support plate 601, so the card storage slot outlet 5012 is also flat, and the inner and outer sides of the mahjong tiles are at the same height. Therefore, in this embodiment, the mahjong tiles are placed flat at the card storage slot inlet 5011 and the card storage slot outlet 5012, and the mahjong tiles are tilted centripetally with the outer side higher and the inner side lower when they are located between the card storage slot inlet 5011 and the card storage slot outlet 5012. The angle of the centripetal tilt increases first and then decreases from the card storage slot inlet 5011 to the card storage slot outlet 5012, and the maximum angle of the centripetal tilt does not exceed 45°, and is further preferably not more than 15°. In this way, not only can the collision and friction between the mahjong tiles and the inner and outer side walls, wear-resistant sheets or wear-resistant strips of the card storage slot be reduced to the greatest extent, but also the coordination and connection between the card storage slot and the card pushing device 4 and the card lifting component 6 are facilitated, and the molding and manufacturing of the card loading bracket are also facilitated.

[0114] In the preferred embodiment of the present invention, an outer wear-resistant sheet 502 is installed on the outer side wall of the card storage slot. The outer wear-resistant sheet 502 is plugged and connected with the card loading bracket 501 through the plug-in portion 5022 and the buckle below it and is locked and fixed by fasteners. In this way, the outer wear-resistant sheet is manufactured as an independent component and can be quickly positioned and installed in the card storage slot of the card loading bracket, which is easy to assemble and has low manufacturing cost.

[0115] In order to reduce the movement resistance of the mahjong tiles in the tile storage slot, the outer wear-resistant sheet 502 is provided with an outer convex rib 5023 for contacting the mahjong tiles, and the outer wear-resistant sheet 502 contacts and blocks the mahjong tiles through the outer convex rib 5023. In this way, the contact area between the mahjong tiles and the outer wear-resistant sheet 502 can be reduced, thereby reducing the movement resistance of the mahjong tiles.

[0116] Preferably, in this embodiment, the outer wear-resistant sheet 502 is provided with an inner protrusion 5021 near the card storage slot outlet 5012, and the inner protrusion 5021 can push the mahjong tiles inwardly, thereby increasing the movement resistance of the mahjong tiles at the card storage slot outlet 5012, and preventing the mahjong tiles from falling back onto the shuffling plate from the card storage slot outlet 5012 when the card lifting support plate does not descend.

[0117] In this embodiment, the inner convex part 5021 is preferably an elastic sheet that is tilted inward from the outer wear-resistant sheet 502, and one or both ends of the elastic sheet are fixedly connected or integrally formed with the outer wear-resistant sheet 502. This can not only increase the moving resistance of the mahjong tiles at the exit of the storage slot to prevent them from falling, but also does not affect the sloped card output, and the manufacturing cost is low.

[0118] Preferably, in this embodiment, a plurality of inner ribs for blocking contact with the mahjong tiles are formed on the wear-resistant sheet inside the card storage groove. The inner ribs are arranged along the movement path of the mahjong tiles in the card storage groove and protrude into the card storage groove from the inside to the outside, so that the upper-layer mahjong tiles are more outward relative to the lower-layer mahjong tiles. In this way, the movement stroke of the upper-layer mahjong tiles in the card storage groove is greater than that of the lower-layer mahjong tiles in the card storage groove. Therefore, when the ramp discharges the cards, the upper-layer mahjong tiles in the first stack of mahjong tiles pushed onto the table will lag behind the lower-layer mahjong tiles by a certain distance, which can avoid the problem that the first stack of mahjong tiles jumps when crossing the hinge position between the card-lifting tray and the mahjong machine table, resulting in the displacement or even overturning of the upper mahjong tiles, and ensure the neatness of the mahjong tile wall lifted onto the mahjong machine table.

[0119] Correspondingly, an upper and lower dislocation design is also formed on the outer side wall of the card storage groove or on the outer wear-resistant sheet, so that the upper-layer mahjong tiles are more outward relative to the lower-layer mahjong tiles, and the movement stroke of the upper-layer mahjong tiles in the card storage groove is greater than that of the lower-layer mahjong tiles in the card storage groove. This upper and lower dislocation design can be to form upper and lower layered stepped portions on the outer side wall of the card storage groove or on the outer wear-resistant sheet. The outer side wall of the card storage groove or the outer wear-resistant sheet (corresponding to the upper-layer mahjong tiles) above the stepped portion is more outward relative to the outer side wall of the card storage groove or the outer wear-resistant sheet below the stepped portion; it can also be to provide upper convex ribs and lower convex ribs on the outer side wall of the card storage groove or on the outer wear-resistant sheet that are arranged along the movement path of the mahjong tiles in the card storage groove. The upper convex ribs contact and block the upper-layer mahjong tiles, and the lower convex ribs contact and block the lower-layer mahjong tiles. All or part of the lower convex ribs protrude inward from the upper convex ribs, so that the upper-layer mahjong tiles are more outward relative to the lower-layer mahjong tiles, thereby making the movement stroke of the upper-layer mahjong tiles in the card storage groove greater than that of the lower-layer mahjong tiles in the card storage groove.

[0120] In this embodiment, the first inner rib 5111 is located below and contacts and blocks the lower-layer mahjong tiles from the inside, and the second inner rib 5112 is located above and contacts and blocks the upper-layer mahjong tiles from the inside. The width of the second inner rib 5112 is greater than the width of the first inner rib 5111. In this way, the inner side wall of the card storage groove no longer contacts the mahjong tiles and is no longer used for inner blocking of the mahjong tiles. Instead, the inner ribs on the inner wear-resistant sheet are used to contact and block the mahjong tiles, which has multiple benefits: First, it reduces the contact area between the mahjong tiles and the inner side of the card storage groove, not only reducing the movement resistance of the mahjong tiles, but also reducing collisions and noises; Second, it can adjust the relative positions of the upper and lower layers of mahjong tiles and their gaps with the inner and outer sides of the card storage groove at low cost and precisely, so as to minimize the collisions, resistance and noises between the mahjong tiles and the card storage groove; Third, it enhances the universality of the card-lifting assembly. On the same card-lifting bracket, the width of the card storage groove can be adjusted by designing inner ribs with different widths to be applicable to mahjong tiles of different sizes; Fourth, it reduces the molding difficulty and manufacturing cost of the card-lifting bracket.

[0121] Preferably, in this embodiment, as Figures 12 to 14 shown, the wear-resistant pieces inside the card storage slot are connected end to end to form an annular inner wear-resistant member 511. The first inner rib 5111 and the second inner rib 5112 are arranged on the part of the inner wear-resistant member 511 inside the card storage slot. An inward notch 5114 and a card blocking portion 5115 are respectively formed on the part of the inner wear-resistant member 511 outside the card storage slot. The inward notch 5114 is close to the card outlet of the card storage slot, and the card blocking portion 5115 is close to the card inlet of the card storage slot. A card feeding detection device 5013 and / or a card blocking rack 403 are arranged on the card blocking portion 5115. The top 5113 of the inner wear-resistant member 511 is fixed on the card feeding support 501 by fasteners or buckles. In this way, it is not only convenient for installation and low in manufacturing cost, but also good in the integrity of the wear-resistant member, smooth and wear-resistant.

[0122] In this embodiment, the inner side wall of the card storage slot can be arranged vertically or can be arranged to incline centripetally. The centripetal inclination angle first increases and then decreases from the card storage slot inlet 5011 to the card storage slot outlet 5012, and the maximum centripetal inclination angle does not exceed 45°, and more preferably does not exceed 15°. This is convenient for the forming and manufacturing of the card feeding support and the installation of the inner wear-resistant member, and reduces the manufacturing cost.

[0123] The components of the card feeding assembly not described above in this embodiment are set in the same way as in Embodiment 1, and various implementation manners described in Embodiment 1 or various implementation manners in the prior art can also be adopted, which will not be elaborated here.

[0124] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0125] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and purposes of the present invention.

Claims

1. A mahjong machine tile feeding component, comprising a tile feeding bracket, on which there is a tile storage groove for storing multiple stacks of mahjong tiles and a tile feeding pusher for pushing the mahjong tiles out of the tile storage groove. The tile storage groove is arc-shaped and bent at an angle greater than 180°. The tile feeding direction at the inlet of the tile storage groove forms an angle of 45° to 90° with the tile discharging direction at the outlet of the tile storage groove. The tile feeding pusher is driven by a tile feeding driving mechanism to move along the tile storage groove from the outer edge of the tile inlet of the tile storage groove to the tile outlet of the tile storage groove and then back to the outer edge of the tile inlet of the tile storage groove. It is characterized in that, The card storage slot includes at least one arc-shaped curved section. The bottom of the card storage slot adopts an inclined support structure with a higher outer side and a lower inner side for the mahjong tiles at the position of the arc-shaped curved section, so that the mahjong tiles are centripetally inclined with a higher outer side and a lower inner side at the position of the arc-shaped curved section.

2. A mahjong machine card assembly according to claim 1, characterized in that: The bottom wall of the card storage slot is in an inclined structure with a higher outer side and a lower inner side at the arc-shaped curved section, so that the mahjong tiles are inclined centripetally with a higher outer side and a lower inner side.

3. The automatic tile arranging component of a mahjong machine according to claim 1, characterized in that, A bottom wear-resistant sheet for contacting mahjong tiles is provided at the bottom of the card storage slot, and the bottom wear-resistant sheet is positioned with the card loading bracket through multiple buckles and locked and fixed by fasteners; the bottom wear-resistant sheet is provided with at least one bottom convex rib for contacting mahjong tiles, and the bottom convex rib extends along the card storage slot and is close to the outer side of the card storage slot, so that the mahjong tiles on the bottom wear-resistant sheet are centripetally inclined with the outer side higher and the inner side lower.

4. A mahjong machine card assembly according to claim 1, characterized in that: The mahjong tiles are placed flat at the entrance and exit of the card storage slot, and are centripetally inclined with the outer side higher and the inner side lower when located between the entrance and exit of the card storage slot. The angle of the centripetal inclination increases first and then decreases from the entrance to the card storage slot to the exit of the card storage slot, and the maximum angle of the centripetal inclination does not exceed 45°.

5. A mahjong machine card assembly according to claim 1, characterized in that: An outer wear-resistant sheet is installed on the outer wall of the card storage slot, and the outer wear-resistant sheet is plug-in connected with the card loading bracket up and down through the plug-in part and the buckle below it and is locked and fixed by fasteners; the outer wear-resistant sheet is arranged to be centripetally inclined, and the angle of the centripetal inclination increases first and then decreases from the inlet to the outlet of the card storage slot, and the maximum angle of the centripetal inclination does not exceed 45°; the outer wear-resistant sheet is provided with an outer convex rib for contacting the mahjong tiles, and the outer wear-resistant sheet contacts and blocks the mahjong tiles through the outer convex rib; the outer wear-resistant sheet is provided with an inner convex portion near the outlet of the card storage slot, and the inner convex portion can push the mahjong tiles inwardly; the inner convex portion is an elastic sheet that protrudes inward from the outer wear-resistant sheet, and one end or both ends of the elastic sheet are fixedly connected to the outer wear-resistant sheet or integrally formed.

6. A mahjong machine card assembly according to claim 1, characterized in that: The inner wall of the card storage slot is arranged to be centripetally inclined, and the angle of the centripetal inclination increases first and then decreases from the card storage slot inlet to the card storage slot outlet, and the maximum angle of the centripetal inclination does not exceed 45°; the inner wall of the card storage slot is provided with a first inner wear-resistant strip and a second inner wear-resistant strip for contacting the mahjong tiles, and the first inner wear-resistant strip and the second inner wear-resistant strip are extended along the moving path of the mahjong tiles in the card storage slot, the first inner wear-resistant strip is located at the bottom and blocks the contact with the mahjong tiles of the lower layer from the inside, and the second inner wear-resistant strip is located at the top and blocks the contact with the mahjong tiles of the upper layer from the inside; the first inner wear-resistant strip and the second inner wear-resistant strip are integrally formed on the card loading bracket by secondary injection molding, or are fixedly connected to the card loading bracket by fasteners or buckles.

7. A mahjong machine card assembly according to claim 6, characterized in that: The width of the second inner wear-resistant strip is greater than that of the first inner wear-resistant strip, so that the upper mahjong tiles are more outward relative to the lower mahjong tiles. In this way, the moving stroke of the upper mahjong tiles in the card storage groove is greater than that of the lower mahjong tiles in the card storage groove. Therefore, when the slope card is played, the upper mahjong tiles in the first stack of mahjong tiles pushed onto the table will lag behind the lower mahjong tiles by a certain distance; the contact position of the first inner wear-resistant strip and the lower mahjong tiles is located at a position between 30% and 90% of the height of the lower mahjong tiles, and the contact position of the second inner wear-resistant strip and the upper mahjong tiles is located at a position between 40% and 90% of the height of the upper mahjong tiles.

8. The mahjong machine card assembly according to claim 1, characterized in that: An inner wear-resistant member for blocking the contacting mahjong tiles is installed inside the card storage groove. A plurality of inner convex ribs for blocking the contacting mahjong tiles are formed on the inner wear-resistant member. The inner convex ribs extend along the moving path of the mahjong tiles in the card storage groove. The inner convex ribs protrude into the card storage groove from the inside to the outside, so that the upper mahjong tiles are more outward relative to the lower mahjong tiles. In this way, the moving stroke of the upper mahjong tiles in the card storage groove is greater than that of the lower mahjong tiles in the card storage groove.

9. A mahjong machine card assembly according to claim 8, characterized in that: The first inner convex rib is located below and blocks and contacts the lower mahjong tiles from the inside. The second inner convex rib is located above and blocks and contacts the upper mahjong tiles from the inside. The width of the second inner convex rib is greater than that of the first inner convex rib; the inner wear-resistant member is connected end to end to form a ring. The first inner convex rib and the second inner convex rib are arranged on the part of the inner wear-resistant member inside the card storage groove. An inner concave opening and a card blocking part are respectively formed on the part of the inner wear-resistant member outside the card storage groove. The inner concave opening is close to the card playing opening of the card storage groove, and the card blocking part is close to the card feeding opening of the card storage groove. A card feeding detection device and / or a card blocking rack are arranged on the card blocking part. The top of the inner wear-resistant member is fixed on the upper card bracket by fasteners or buckles.

10. A mahjong machine, comprising a central control panel assembly located at the center of the bottom plate of the frame and a large shuffling plate. Four groups of card-picking and transporting systems are arranged around the large shuffling plate. The card-picking and transporting system includes a card-feeding device for picking up mahjong tiles one by one from the large shuffling plate and sending them out, a card-pushing device for stacking two mahjong tiles into a stack and pushing them out, and a ramp card-playing device for sending multiple stacked mahjong tiles along a ramp onto the tabletop of the mahjong machine. The ramp card-playing device includes a card-playing component and a card-lifting component; the card-lifting component is arranged inside the card-feeding device in the same group of card-picking and transporting systems and the two are directly adjacent to each other inside and outside. In the same group of card-picking and transporting systems, it is characterized in that The upper card component is a mahjong machine upper card component according to any one of claims 1 to 9.

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