Mahjong machine and tile feeding assembly thereof

Abstract

A tile storage groove and a tile feeding push head are arranged on a tile feeding support, the tile storage groove is bent in an arc shape, the bending angle is larger than 180 degrees, and the included angle between the tile inlet direction of an inlet of the tile storage groove and the tile outlet direction of an outlet of the tile storage groove is 45-90 degrees. The tile feeding push head is driven by a tile feeding driving mechanism to move from the outside of the tile inlet of the tile storage groove to the tile outlet 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 an inclined supporting structure with a high outer side and a low inner side is adopted for mahjong tiles at the arc-shaped bent section at the bottom of the tile storage groove, so that the mahjong tiles are centripetally inclined with the high outer side and the low inner side at the arc-shaped bent section; the inner side of the tile storage groove is provided with a wear-resistant sheet for contacting the mahjong tiles. 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 its card-dealing component.

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 ramp 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 the side line of the table board. There are four arc-shaped card storage grooves in a windmill shape arranged under the table board. A card-pushing head is installed at the end of each card storage groove, 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 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 ramp. 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 card storage groove is arranged in a ramp 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 arrangement of the card storage groove, the stacking and pushing head and the conveying device (the mechanism that picks up mahjong cards from the large disc and conveys them to the stacking and pushing head) is unreasonable, and it is difficult for a conventional square independent stacking and pushing head to push mahjong cards to the card inlet of the card storage groove 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 ramp 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 groove is arranged outside the conveyor belts on all four sides. There is a circular closed chain under the groove, 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 have not been improved.

[0005] The patent document with the publication number CN102133480A discloses a fully automatic mahjong machine, including a card delivery system, a card loading system, a card raising system and a shuffling plate, wherein the card loading system includes four card pushing devices, four card loading tracks and a chain transmission device. Among them, the height of the card delivery system is substantially flush with the height of the card raising system. Although this reduces the height of the host, the arrangement position of the card raising system will interfere with the shuffling of the plate and the absorption of mahjong tiles by the card delivery system, and is only suitable for small mahjong tiles. In addition, the card delivery system's card outlet and the card loading track's card inlet are arranged unreasonably, and the card pushing device does not have a card stacking function. The mahjong tiles are stacked on the card receiving table by themselves, so that the mahjong tiles are stacked unevenly and easily dislocated, resulting in the mahjong tiles being unable to enter the card loading track, causing chaos in the card loading track and other faults. In addition, after adopting a horizontal card loading track, the mahjong tiles close to the card loading track's card outlet are very easy to fall out of the card outlet and fall back into the shuffling plate; the use of a chain and a card loading flag wheel structure is noisy.

[0006] The automatic mahjong machine disclosed in the patent documents with publication numbers CN201906453U and CN201949619U has a card storage board in the card storage track of the mahjong machine that is tilted and docked with the card receiving board at one end. The stacking card pusher pushes the mahjong tiles on the card receiving board onto the card storage board. After the mahjong tiles on the card storage board are arranged in a row, the loading card pusher pushes the entire row of mahjong tiles to the loading card assembly. Since the stacking card pusher is provided with an avoidance groove and the loading card pusher is provided with a push rod, the two pushers can be arranged crosswise up and down, so that the two can completely avoid each other through the avoidance groove when pushing cards respectively. However, because the card storage track must pass above the conveying part of the card feeding device, the height of the mahjong machine host is relatively high (the height of the card feeding device and the loading card device are superimposed). In addition, the L-shaped card storage track is relatively short and has poor versatility.

[0007] The automatic mahjong machines disclosed in the patent documents with publication numbers CN103861280A and CN104645608A also have the problems of high main machine height (the height of the card feeding device and the card loading device is superimposed), short L-shaped card storage track, etc. Moreover, after adopting a horizontal card loading track, the mahjong tiles close to the card output port of the card loading track are very easy to fall out of the card output port and fall back into the shuffling plate; the steel wire rope is used to drive the card loading pusher to move, and the steel wire rope has serious friction with the side wall of the track, resulting in a short service life.

[0008] The patent document with the publication number CN204699375U discloses an automatic mahjong machine with an improved structure, including a card delivery system, a card placing system, a card lifting system, and a large shuffling disc. The card delivery system includes four card delivery mechanisms, each of which includes a transmission frame and a conveyor belt fixed on the transmission frame. The four card delivery mechanisms are connected in sequence to form a rectangular structure, and the large shuffling disc is arranged within the four card delivery mechanisms. The card placing tracks all adopt an entire large arc-shaped structure, reducing the friction between the mahjong tiles and the card placing tracks, ensuring a relatively fast card placing speed and relatively low card placing noise. Moreover, the layout positions of the card placing system and the card delivery system are designed with partial overlap avoidance, reducing the height of the main unit. However, since the card delivery device uses linear in-and-out conveyance of mahjong tiles, the card outlet of the card delivery device and the card inlet of the card placing 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 placing track increases the size of the mahjong machine tabletop. The patent document with the publication number CN105363195A discloses a card delivery device for a mahjong machine. By reasonably adjusting the positions of the card outlet and the card inlet of the card delivery device, the card delivery channel is arc-shaped, so that the mahjong tiles delivered by the card delivery 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 and have less resistance.

[0009] The patent document with the publication number CN105413161A discloses a card placing driving mechanism, a card placing component, and a mahjong machine. The card placing driving mechanism of this mahjong machine includes a card placing support, a card storage groove, a card placing guide rail, a card placing 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 placing guide rail and / or the card storage groove. The rolling member is rotatably installed on the card placing guide rail or the card placing support. The part of the steel wire rope in the card storage groove is in rolling contact with a plurality of rolling members and maintains a gap with the side wall of the card placing guide rail and / or the card storage groove. 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 groove and the arc-shaped curved side wall of the card placing guide rail and / or the card storage groove, which affects the service life and operation stability of the steel wire rope.

[0010] Mahjong machines, their card-ontopping components, and card-ontopping driving mechanisms disclosed in patent documents such as Publication No. CN106075897A and CN106215413A. The card-ontopping component includes a card-ontopping bracket, on which a card storage slot, a first card-ontopping pusher, and a second card-ontopping pusher are provided. An opening is formed on the inner side wall at the middle position of the card storage slot, and the card storage slot communicates with a reversing slot through this opening. The first card-ontopping pusher is driven by the card-ontopping driving mechanism to move from outside the card inlet of the card storage slot to near the opening and then return. The second card-ontopping pusher is driven by the card-ontopping driving mechanism to move from the card outlet of the card storage slot into the reversing slot and then return. The card-ontopping driving mechanism includes a first card-ontopping push rod and a second card-ontopping push rod that reciprocate independently and cooperate with each other. The first card-ontopping pusher is arranged on the first card-ontopping push rod, and the second card-ontopping pusher is arranged on the second card-ontopping push rod. This solution uses the method of two card-ontopping push rods relaying to push the cards, completely avoiding defects such as large resistance between the card-ontopping 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 the inventor has repeatedly researched, developed, and improved them, the following technical problems have not been completely overcome so far:

[0012] 1. In the prior art, the card delivery 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 delivery 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 in this way is still limited, especially for large-sized ones.

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

[0014] 3. Because the adjacent card-picking and transporting systems are arranged in an interlaced manner, due to the limitations that the card-lifting component and the card storage slot cannot be superposed vertically and the length of the card storage slot, the setting position of the card-lifting openings 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 four-sided card-lifting openings 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 the player is used to placing the bar cards and cannot place the cards, and the player needs to move the mahjong card wall to vacate the bar card area, affecting the use comfort.

[0015] 4. Because adjacent card picking and transporting systems are staggered with each other, the arc curvature of the card storage slot is small (that is, the card input direction and the card output direction of the card storage slot are arranged at an acute angle) and the shape is irregular. Therefore, the card loading drive mechanism that drives the card loading push head in the card storage slot to move has a complex structure, high manufacturing precision requirements, reliability is limited by the structure, and the manufacturing cost and maintenance cost are high.

[0016] Patent documents with publication numbers CN106166379A, CN107773976A, CN107773977A, etc. disclose a ring-shaped card-pushing device for an automatic mahjong machine and a mahjong machine. The device comprises a motor, a turntable, a card-pushing block assembly, a ring-shaped upright track, a base and a ring-shaped card-blocking side plate of the base, the ring-shaped upright track is arranged on the surface of the base, the base, the ring-shaped upright track and the ring-shaped card-blocking side plate of the base form a mahjong card-pushing slot, the mahjong card-pushing slot is provided with a mahjong card inlet and a mahjong card outlet, a card-pushing block assembly is arranged on the ring-shaped upright track, the inner side of the card-pushing block assembly has a card slot, the card-pushing block assembly is movably plugged into the ring-shaped upright track through the card slot, the part of the card-pushing block assembly built into the mahjong card-pushing slot has a card-pushing arm for card-pushing transmission, the motor is mounted on the base, and the motor is connected to the turntable for transmission, and the turntable has a driving part for driving the card-pushing block assembly to push cards in the mahjong card slot. In this structure, the card pushing block is inserted into the annular vertical track and slides to push the cards. The annular vertical track is composed of arc segments and straight segments. The card pushing block is driven by a turntable to move back and forth in the card pushing slot. The movement path of the card pushing block is irregular. The large-angle curved annular card pushing slot structure not only leads to large friction resistance between the card pushing block and the track and a short service life of the components, but also the mahjong cards will collide and rub against the outer wall of the annular card pushing slot under the action of centrifugal force when moving along the annular card pushing slot, and will collide and rub against the inner wall of the annular card pushing slot again after the outer collision force, resulting in large card pushing resistance and noise, and even the mahjong cards are stuck and cannot be pushed.

[0017] Patent documents such as 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 of the card storage slot. In the same card-picking and transporting system: the card-lifting component 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 component 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 jammed when movably clamped on the annular vertical track and the risk that the mahjong tiles are jammed 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 and mahjong tiles of the mahjong machine 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 component, further reducing the card-pushing resistance and collision noise caused by the movement of the mahjong tiles in the annular card storage slot with a large bending angle and improving the service life of the components and mahjong tiles of the mahjong machine.

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

[0020] A card-lifting component 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 of the card storage slot. 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 for the mahjong tiles at the arc-shaped bending section position, so that the mahjong tiles show a centripetal inclination with the outer side higher than the inner side at the arc-shaped bending section position. Wear-resistant pieces for contacting the mahjong tiles are provided on the inner side of the card storage slot.

[0021] Preferably, a plurality of inner convex ribs for blocking contact with mahjong tiles are formed on the wear-resistant sheet inside the card storage slot, and the inner convex ribs are arranged along the moving path of the mahjong tiles in the card storage slot.

[0022] Preferably, the inner convex ribs protrude into the card storage slot from the inside out. Correspondingly, 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 sheet, so that the upper-layer mahjong tiles in the card storage slot are more outward relative to the lower-layer mahjong tiles, thereby making the moving stroke of the upper-layer mahjong tiles in the card storage slot greater than that of the lower-layer mahjong tiles in the card storage slot.

[0023] Preferably, a first inner convex rib and a second inner convex rib are formed on the wear-resistant sheet inside the card storage slot. The first inner convex rib is located below and blocks contact with the lower-layer mahjong tiles from the inside, and the second inner convex rib is located above and blocks contact with the upper-layer mahjong tiles from the inside. The width of the second inner convex rib is greater than that of the first inner convex rib.

[0024] Preferably, the wear-resistant sheets at the head and tail of the inside of the card storage slot are connected end to end to form an annular inner wear-resistant member. 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 slot. 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 slot. The inner concave opening is close to the card outlet of the card storage slot, and the card blocking part is close to the card inlet of the card storage slot; a card feeding detection device and / or a card blocking rack are arranged on the card blocking part; the inner wear-resistant member is sleeved on the upper card bracket and is fixedly connected to the upper card bracket through fasteners and / or buckles.

[0025] Preferably, the top of the inner wear-resistant member extends inwards to form a fixing edge, and a plurality of through holes are provided on the fixing edge. A plurality of fasteners pass through the through holes to fix the inner wear-resistant member on the upper card bracket.

[0026] Preferably, the bottom wall of the card storage slot is in an inclined structure with the outer side high and the inner side low at the arc bending section, so that the mahjong tiles are in a centripetal inclination with the outer side high and the inner side low.

[0027] Preferably, a bottom wear-resistant sheet for contacting the mahjong tiles is provided at the bottom of the card storage slot. The bottom wear-resistant sheet is positioned in cooperation with the upper card bracket through a plurality of buckles and is fixedly locked through fasteners.

[0028] Preferably, at least one bottom convex rib for contacting the mahjong tiles is provided on the bottom wear-resistant sheet. 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 in a centripetal inclination with the outer side high and the inner side low.

[0029] Preferably, the bottom wall of the card storage slot is of an inclined structure with the outer side higher than the inner side at the arc bending section. There are two inner and outer bottom ribs for contacting the mahjong tiles on the bottom wear-resistant sheet, so that the mahjong tiles are in a centripetal inclination with the outer side higher than the inner side at the arc bending section of the card storage slot.

[0030] Preferably, the mahjong tiles are placed flat at the inlet and outlet of the card storage slot, while the mahjong tiles are in a centripetal inclination with the outer side higher than the inner side at the position between the inlet and outlet of the card storage slot. The angle of centripetal inclination increases first and then decreases from the inlet to the outlet of the card storage slot, and the maximum angle of centripetal inclination does not exceed 45°.

[0031] Preferably, an outer wear-resistant sheet is installed on the outer side wall of the card storage slot. The outer wear-resistant sheet is inserted and clamped with the upper card support up and down through the insertion part and buckle below it and is locked and fixed by fasteners.

[0032] Preferably, the outer wear-resistant sheet is arranged in a centripetal inclination. The angle of centripetal inclination increases first and then decreases from the inlet to the outlet of the card storage slot, and the maximum angle of centripetal inclination does not exceed 45°.

[0033] Preferably, the outer wear-resistant sheet is provided with outer ribs for contacting the mahjong tiles, and the outer wear-resistant sheet contacts and blocks the mahjong tiles through the outer ribs.

[0034] Preferably, the outer wear-resistant sheet is provided with an inner convex part near the outlet of the card storage slot, and the inner convex part can push the mahjong tiles inward.

[0035] Preferably, the inner convex part is an elastic sheet that warps inward from the outer wear-resistant sheet, and one end or both ends of the elastic sheet are fixedly connected or integrally formed with the outer wear-resistant sheet.

[0036] Preferably, the inner side wall of the card storage slot is arranged in a centripetal inclination. The angle of centripetal inclination increases first and then decreases from the inlet to the outlet of the card storage slot, and the maximum angle of centripetal inclination does not exceed 45°.

[0037] Preferably, a first inner wear-resistant strip and a second inner wear-resistant strip for contacting the mahjong tiles are arranged on the inner side wall of the card storage slot. The first inner wear-resistant strip and the second inner wear-resistant strip extend along the moving path of the mahjong tiles in the card storage slot. The first inner wear-resistant strip is located below and contacts and blocks the lower-layer mahjong tiles from the inner side, and the second inner wear-resistant strip is located above and contacts and blocks the upper-layer mahjong tiles from the inner side.

[0038] Preferably, the first inner wear-resistant strip is provided with a plurality of first fixing parts protruding towards the inside of the card storage groove, and the second inner wear-resistant strip is provided with a plurality of second fixing parts protruding towards the inside of the card storage groove. A plurality of vertical slots corresponding to the first fixing parts and the second fixing parts are formed on the inner side of the card storage groove on the card placing bracket. 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-fittings.

[0039] Preferably, the first inner wear-resistant strip and the second inner wear-resistant strip are integrally formed on the card placing bracket by secondary injection molding.

[0040] 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 moving 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 cards 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.

[0041] Preferably, the contact position of the first inner wear-resistant strip with the lower-layer mahjong tiles is located 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 located between 40% and 90% of the height of the upper-layer mahjong tiles.

[0042] A mahjong machine adopts a mahjong machine card placing component as described above.

[0043] A mahjong machine includes a central control panel component and a shuffling large plate located at the center of the machine frame bottom plate. 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 for picking up and sending out mahjong tiles one by one from the shuffling large plate, a card pushing device for stacking two mahjong tiles into a stack and pushing them out, and a slope card discharging device for sending multiple stacks of arranged mahjong tiles onto the mahjong machine tabletop along a slope. The slope card discharging device includes a card placing component and a card lifting component; the card lifting component is arranged inside the card sending device in the same group of card picking and transporting systems and is directly adjacent to it inside and outside. In the same group of card picking and transporting systems: the card placing component is a mahjong machine card placing component as described above.

[0044] Due to the adoption of the above technical solution, the bottom of the card storage slot adopts an inclined support structure with the outer side higher than the inner side for the mahjong tiles at the arc bending section, 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 of the card storage slot, 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 slot with a large-angle arc bending and the side walls, wear-resistant sheets or wear-resistant strips on the inner and outer sides of the card storage slot, reducing the pushing card resistance and collision noise caused by the movement of the mahjong tiles in the annular card storage slot 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

[0045] Figure 1 It is a schematic structural diagram (with a cover) of the mahjong machine according to Embodiment 1 of the present utility model.

[0046] Figure 2 It is a schematic structural diagram (without a cover) of the mahjong machine according to Embodiment 1 of the present utility model.

[0047] Figure 3 It is a schematic structural diagram of the card picking and transporting system according to Embodiment 1 of the present utility model.

[0048] Figure 4 It is a schematic structural diagram of the card feeding component and the card lifting component according to Embodiment 1 of the present utility model.

[0049] Figure 5 It is a schematic structural diagram of the card feeding component according to Embodiment 1 of the present utility model.

[0050] Figure 6 It is one of the perspective views of the card feeding component according to Embodiment 1 of the present utility model.

[0051] Figure 7 It is the second perspective view of the card feeding component according to Embodiment 1 of the present utility model.

[0052] Figure 8 is Figure 5 The A-A cross-sectional view of.

[0053] Figure 9 It is an exploded view of the card feeding component according to Embodiment 1 of the present utility model.

[0054] Figure 10 It is a schematic diagram of the card feeding component storing mahjong tiles according to Embodiment 1 of the present utility model.

[0055] Figure 11 It is a schematic structural diagram (without a cover) of the mahjong machine according to Embodiment 2 of the present utility model.

[0056] Figure 12 It is a schematic structural diagram of the card feeding component according to Embodiment 2 of the present utility model.

[0057] Figure 13 It is the top view of the card - placing assembly in Embodiment 2 of the present utility model.

[0058] Figure 14 It is the exploded view of the card - placing assembly in Embodiment 2 of the present utility model.

[0059] Figure 15 It is the present utility model Figure 13 B - B cross - sectional view.

[0060] Figure 16 It is the schematic diagram of the card - placing assembly in Embodiment 2 of the present utility model for storing mahjong tiles.

[0061] Reference numerals:

[0062] Mahjong tile 10, bottom plate 1, large 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 - holding table 402, card - blocking rack 403, card - placing assembly 5, cover 500, card - placing support 501, card - storage tank inlet 5011, card - storage tank outlet 5012, card - feeding detection device 5013, outer wear - resistant sheet 502, inner convex part 5021, insertion part 5022, outer convex 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 convex 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 convex rib 5111, second inner convex rib 5112, top 5113, card - lifting assembly 6, card - lifting tray 601, central control panel assembly 7.

Detailed implementation manners

[0063] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0064] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counter - clockwise", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply 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 a limitation of the present utility model.

[0065] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more, unless otherwise clearly defined.

[0066] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed 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 directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. 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.

[0067] In the present utility model, unless otherwise clearly specified and defined, 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 second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0068] Embodiment 1:

[0069] As Figure 1 、 Figure 2 and Figure 3 shown, an automatic mahjong machine includes a shuffling turntable 2 located at the center of a bottom plate 1 and a central control panel assembly 7. Four groups of card-picking and transporting systems are arranged around the shuffling turntable. The card-picking and transporting systems include a card-sending device 3 for picking up mahjong tiles one by one from the shuffling turntable 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 multiple stacked mahjong tiles up to the mahjong machine table along a ramp. The ramp card-playing device includes a card-playing component 5 and a card-lifting component 6.

[0070] The card delivery device 3 includes a card delivery box. A card delivery channel for transferring mahjong tiles is provided inside the card delivery box, and a card suction wheel is provided at the card inlet of the card delivery channel. In this embodiment, a conveyor belt driven by a card delivery motor is provided inside the card delivery channel. The card delivery channel can be a straight channel, or an arc-shaped card delivery channel can be selected if the need for optimizing the structural layout arises. To ensure the reliability of mahjong tile delivery, the height of the card outlet of the card delivery channel is not lower than the height of the card inlet of the card delivery channel. For the specific structure of the card delivery device, reference can be made to the patent document with the publication number CN105413161A.

[0071] The pushing device in this embodiment can achieve the function of stacking and pushing, and includes a pushing head 401 and a card supporting platform 402. For the specific structure of this pushing device, reference can be made to the patent documents with the publication numbers CN201906453U, CN201949619U, CN103861280A, and CN204699375U, etc. Generally speaking, a pushing device with the function of stacking and pushing includes a machine head box. A pushing motor is installed on the machine head box. A transmission mechanism is provided inside the machine head box. A pushing head and a card supporting platform are provided outside the machine head box. The pushing motor drives the card supporting platform to move up and down through the transmission mechanism to achieve the stacking of mahjong tiles, and the pushing motor drives the pushing head to move horizontally through the transmission mechanism to push out the stacked mahjong tiles. Of course, this pushing device can also be other mechanisms that can achieve one stack of mahjong tiles being carried on the card supporting platform and one stack of mahjong tiles being pushed out by the pushing head. A counting and detecting device for detecting the number of pushing operations and / or the number of pushed cards is installed on the machine head box. A card blocking rack 403 is provided near the card supporting platform 402. The card outlet of the card delivery device and the card blocking rack are respectively located on opposite sides of the card supporting platform 402. Among the other two opposite sides of the card supporting platform 402, a pushing head is provided on one side, and the other side is the outlet where the pushing head pushes the mahjong tiles out of the card supporting platform. In this embodiment, a card delivery detecting device for detecting whether mahjong tiles are delivered from the card outlet of the card delivery device to the card supporting platform is provided on the card blocking rack, or can also be provided on the side of the card supporting platform 402 where the pushing head is provided to improve the detection accuracy and reliability. This card delivery detecting device can be installed on the extension part of the card blocking rack or on the pushing head.

[0072] The card placing assembly such as Figures 4 to 7As 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.

[0073] 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.

[0074] 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.

[0075] 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:

[0076] 1. In the card delivery device and card lifting assembly of the same set of card picking and transporting system, they are directly adjacent to each other inside and outside, making the card storage slot bend in a large-angle arc, extending the length of the card storage slot and increasing the storage quantity of mahjong tiles in the card storage slot.

[0077] 2. The card lifting assembly and card delivery device in the same set of card picking and transporting system are arranged outside the arc bend of the card storage slot, and the card lifting driving mechanism of the card lifting pusher is arranged inside the arc bend of the card storage slot. In this way, there is no overlapping position in the vertical direction between the card lifting assembly and the card delivery device, and there is also no vertical overlap between the card delivery device and the card lifting assembly, or only a small amount of overlap exists at the card outlet end of the card lifting assembly and the card delivery device. This avoids the problem in the prior art that the significant vertical overlap of relevant device components caused by the staggered arrangement of adjacent card picking and transporting systems increases the overall height of the mahjong machine. Compared with the machine in the prior art where the card storage slot is stacked on the card delivery device, the overall height of the machine can be correspondingly reduced.

[0078] 3. The card lifting assembly and card delivery device in the same set of card picking and transporting system are arranged outside the arc bend of the card storage slot, and the card lifting driving mechanism of the card lifting pusher is arranged inside the arc bend of the card storage slot, making the arc bend of the card storage slot closer to a circular arc. In this way, the resistance of the card lifting driving mechanism to drive the card lifting pusher to move and push the cards in the card storage slot is smaller, the acting force required in each stage of the movement is more uniform, the motor load of the card lifting driving mechanism is smaller, the transmission structure is simpler, the reliability is better, and the manufacturing cost and use and maintenance cost are reduced.

[0079] 4. The adjacent card picking and transporting systems are independent of each other and are not staggered, so that the setting of the card lifting opening on the mahjong machine table is no longer restricted by the position and length of the card storage slot. In this way, the position of the card lifting opening can be moved inwards, providing a larger setting space for the card lifting assembly. The arc radius of the card storage slot can be made larger, the card storage slot is longer, and the storage quantity of cards is more. Taking a mahjong machine with a side length of 85 cm adopting the structure of the present utility model and using 48 mm mahjong tiles as an example, the four rows of mahjong tile walls directly lifted onto the tabletop 11 from the four-sided card lifting openings 111 are arranged in a windmill shape. The distance between the two opposite rows of mahjong tile walls (i.e., the two opposite card lifting openings) is 30.5 cm. According to the size of the mahjong tiles, this distance can be reduced to 30.5 ± 1 cm. In this way, the area where players are used to placing the bar tiles on the left hand side is relatively large, and it is easier to place the mahjong tiles. Players do not need to deliberately move the mahjong tile walls to vacate the bar tile area, and the use experience and comfort are better.

[0080] 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.

[0081] In the present embodiment, the card-loading driving mechanism is a card-loading push rod 503 that rotates around a fixed point, and 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 by a gear transmission mechanism 507. In other embodiments, the card-loading push rod 503 can be directly fixed on the output shaft of the card-loading motor 506, or can be connected to the motor transmission by a chain transmission mechanism, a synchronous belt transmission mechanism or a connecting rod transmission mechanism, or can share a motor with a card-lifting assembly, a card-feeding device or a card-pushing device. In the present embodiment, a single push rod is adopted to push the card, and the rotation center of the card-loading push rod is concentric with the arc bending center of the card storage slot, so that the direction of the thrust is basically in the circular arc tangent direction, and basically overlaps with the direction of motion, so that the thrust can be made smaller (reducing the force component) under the same shape, and the motor load is smaller, and the reliability is better. In the present embodiment, the base of the card-loading push rod 503 is provided with an outer tooth 5031, and the outer tooth 5031 is meshed with the pinion on the output shaft of the card-loading motor 506. The card loading bracket 501 is also provided with a sensor 504 for detecting the position of the card loading push head 505 .

[0082] In this embodiment, the card storage slot is curved in an arc shape with a bending angle of 185° to 330°, the card input direction of the card storage slot inlet and the card output direction of the card storage slot outlet are at an angle of 45° to 90°, the card storage slot base 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, and the card storage slot outlet is preferably a straight section to facilitate the connection with the slope formed by the descent of the card lifting plate.

[0083] 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.

[0084] For 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 wall 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 cooperative positioning manner, or integrally formed on the upper card support to facilitate installation and manufacturing.

[0085] In order 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 position, 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 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 the preferred embodiment, the bottom wall of the card storage groove is an inclined structure with the outer side higher than the inner side at the arc-shaped curved section position, so that the mahjong tiles show a centripetal inclination with the outer side higher than the inner side. In other embodiments, the bottom inclined structure of the card storage groove at the arc-shaped curved section 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 the outer side higher than the 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 the outer side higher than the inner side. As Figure 9 shown, in this embodiment, the bottom wall of the card storage groove is an inclined structure with the outer side higher than the inner side at the arc-shaped curved section 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 the outer side higher than the inner side at the arc-shaped curved section position of the card storage groove, as Figure 10 shown.

[0086] In this embodiment, the inlet 5011 of the card storage slot needs to cooperate with the card pushing device 4, so the inlet 5011 of the card storage slot is flat, and the heights of the inner and outer sides of the mahjong tiles at this place are the same; the outlet 5012 of the card storage slot needs to cooperate with the card lifting plate 601, so the outlet 5012 of the card storage slot 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 inlet 5011 and the outlet 5012 of the card storage slot, and are in a centripetal inclination with the outer side higher than the inner side at the position between the inlet 5011 and the outlet 5012 of the card storage slot. The centripetal inclination angle first increases and then decreases from the inlet 5011 to the outlet 5012 of the card storage slot, and the maximum centripetal inclination angle does not exceed 45°, and more preferably does not exceed 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 minimized, but also the cooperation and connection between the card storage slot and the card pushing device 4 and the card lifting assembly 6 are facilitated, and the forming and manufacturing of the card loading bracket are also facilitated.

[0087] As Figures 4 to 7 shown, in this embodiment, it is preferred that 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 vertically inserted and clamped with the card loading bracket 501 through the insertion part 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 convenient for assembly and has low manufacturing cost.

[0088] In order to prevent the mahjong tiles from having too much movement space in the card storage slot and causing collision and noise, in this example, the outer wear-resistant sheet 502 is not vertically arranged, but is arranged in a centripetal inclination. The centripetal inclination angle first increases and then decreases from the inlet 5011 to the outlet 5012 of the card storage slot, and the maximum centripetal inclination angle does not exceed 45°, and more preferably does not exceed 15°.

[0089] In order to reduce the movement resistance of the mahjong tiles in the card storage slot, the outer wear-resistant sheet 502 is provided with outer convex ribs 5023 for contacting the mahjong tiles. The outer wear-resistant sheet 502 contacts and blocks the mahjong tiles through the outer convex ribs 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.

[0090] In this embodiment, it is preferred that the outer wear-resistant sheet 502 is provided with an inner convex part 5021 near the outlet 5012 of the card storage slot. The inner convex part 5021 can push the mahjong tiles inward, thereby increasing the movement resistance of the mahjong tiles at the outlet 5012 of the card storage slot and preventing the mahjong tiles from falling back onto the shuffling tray when the card lifting plate has not descended.

[0091] In this embodiment, preferably, the inner convex part 5021 is an elastic piece that warps inward from the outer wear-resistant piece 502, and one end or both ends of the elastic piece are fixedly connected to or integrally formed with the outer wear-resistant piece 502. This can not only increase the movement resistance of the mahjong tiles at the exit of the card storage slot to prevent them from falling, but also does not affect the ramp card output, and the manufacturing cost is low.

[0092] In this embodiment, preferably, as Figures 7 to 10 shown, the inner side wall of the card storage slot is not vertically arranged, but is arranged to be inclined 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 can not only avoid the diagonal collision and noise caused by too large an activity space of the mahjong tiles in the card storage slot, but also facilitate the forming and manufacturing of the card loading bracket and reduce the manufacturing cost.

[0093] In this embodiment, preferably, a first inner wear-resistant strip 509 and a second inner wear-resistant strip 510 for contacting the mahjong tiles are arranged 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 movement 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 to block the mahjong tiles from the inside. Instead, the inner wear-resistant strips are used to contact and block 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 movement resistance of the mahjong tiles, but also reducing collisions and noise; Second, it can accurately 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 slot 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 loading component. On the same card loading 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 loading bracket.

[0094] In this embodiment, preferably, a plurality of first fixing parts 5091 protruding towards the inner side 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 inner side 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 formed on the inner side of the card storage slot on the card placing 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 inserted into the vertical slots, they are fixed by fasteners or snap-fittings, 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 placing bracket by secondary injection molding.

[0095] As Figure 10 shown, in this embodiment, preferably, 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 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 slot is greater than that of the lower mahjong tiles in the card storage slot. Therefore, when the slope is used to play the cards, among the first stack of mahjong tiles pushed onto the tabletop, the upper mahjong tiles will lag behind the lower 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.

[0096] Correspondingly, 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 sheet, 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 to form upper and lower layered stepped parts on the outer side wall of the card storage slot or on the outer wear-resistant sheet. The outer side wall of the card storage slot or the outer wear-resistant sheet (corresponding to the upper mahjong tiles) above the stepped part is more outward relative to the outer side wall of the card storage slot or the outer wear-resistant sheet below the stepped part; it can also be to provide upper convex ribs and lower convex ribs on the outer side wall of the card storage slot or on the outer wear-resistant sheet that extend along the moving path of the mahjong tiles in the card storage slot. 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 inwards from the upper convex ribs, so that the upper mahjong tiles are more outward relative to the lower mahjong tiles, and thus 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; As Figure 10 shown, in this embodiment, preferably, the outer wear-resistant sheet 502 is fixed on the outer side wall of the card storage slot. The upper part of the outer wear-resistant sheet 502 is used to block and contact the upper mahjong tiles, and the lower part of the outer wear-resistant sheet 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.

[0097] Preferably in this embodiment, when there are mahjong tiles stored in the card storage slot, the contact position of the first inner wear-resistant strip 509 with the lower-layer mahjong tiles is located 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 510 with the upper-layer mahjong tiles is located at a position between 40% and 90% of the height of the upper-layer mahjong tiles. In this way, when rotating and pushing the tiles, the movement resistance, collision and noise of the mahjong tiles can be minimized to the greatest extent.

[0098] Preferably in this embodiment, a card-playing ramp for lifting the mahjong tiles is provided at a position of the card storage slot close to the card-playing outlet. In this way, it not only effectively avoids the mahjong tiles near the card-playing outlet in the card storage slot from falling back into the large shuffling plate during the process of pushing the tiles by the tile-pushing device, but also does not excessively increase the resistance for the upper-tile pushing head to push the tiles. In addition, to a certain extent, providing a ramp in the card storage slot can also play a role in extending the length of the card-lifting support plate in the card-lifting assembly and slowing down the inclination slope of the card-lifting support plate, thereby reducing the resistance for pushing the tiles. The card-playing 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 card-playing ramp capable of lifting the mahjong tiles at a position close to the card-playing outlet 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 the mahjong tiles. In order to avoid faults such as arching and jumping of the mahjong tiles in the card storage slot during the process of pushing the tiles by the tile-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 upper-tile support 501, and the cover 500 covers the entire top of the card storage slot.

[0099] In order to avoid the mahjong tiles lifted onto the mahjong machine table from shifting up and down, the horizontally moving upper-tile pushing head has multiple tile-pushing parts, and these multiple tile-pushing parts respectively contact two mahjong tiles stacked up and down in the same stack. The tile-pushing part in contact with the lower-layer mahjong tile protrudes from the tile-pushing part in contact with the upper-layer mahjong tile. In this way, when the upper-tile pushing head pushes multiple stacks of mahjong tiles to move horizontally, the upper-layer mahjong tiles lag behind the lower-layer mahjong tiles. When the upper-tile pushing head pushes the last stack of mahjong tiles onto the inclined card-lifting support plate, the upper-layer mahjong tiles are flush with the lower-layer mahjong tiles.

[0100] In order to avoid the upper-tile pushing head from colliding with the tile-pushing head 401 in the tile-pushing device outside the card inlet of the card storage slot and at the same time avoid blocking the mahjong tiles sent by the card-sending device, the upper-tile pushing head 505 and the tile-pushing head 401 in the tile-pushing device adopt a dislocation avoidance design and are arranged on one side of the card-bearing table 402 together before pushing the tiles. In order to avoid the mahjong tiles pushed by the tile-pushing device from being easily scattered and stuck, the card inlet direction of the card storage slot and the card outlet direction of the card-sending device outlet are arranged at an angle of 80° to 100°, and the tile-pushing direction of the tile-pushing head 401 of the tile-pushing device 4 is coordinated with the card inlet direction of the card storage slot.

[0101] The card blocking frame 403 in the card pushing device can be fixedly connected to or integrally formed with the card placing support. The card feeding box, the card placing support, and the card lifting support in the four-sided card picking and transporting system can be fixedly connected or integrally formed in combination. In this embodiment, the annular housing 301 integrally formed on four sides is used as the installation base for the four-sided card feeding device and the four-sided card lifting assembly, which is convenient for assembly and has a simple and reliable structure.

[0102] In this embodiment, the above-mentioned card placing push rod 503 can swing back and forth or rotate in one direction. Accordingly, an opening is provided on the outer side wall of the card lifting slot of the card lifting assembly 6 for the card placing push head and the card placing push rod to pass through. That is to say, the card placing push head can rotate in a one-way cycle. In this way, the slope card-dealing mahjong machine can achieve card placing in stages. The process of card placing in stages is as follows: After the card pushing device pushes six stacks or twelve mahjong tiles into the card storage slot of the slope card-dealing device, the card placing push head enters and stays in the card storage slot. In this way, there are six stacks or twelve mahjong tiles in front of the card placing push head, and the remaining mahjong tiles are pushed into the card storage slot through the card pushing device after the card placing push head, so that the card placing push head is clamped between the front and rear rows of mahjong tiles; When the mahjong machine receives the first card placing signal, the card lifting tray of the card lifting device descends. The card placing 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 place these mahjong tiles on the tabletop. The card placing push head moves to the outside of the inlet of the card storage slot through the opening on the side wall of the card lifting slot; After the player takes away the six stacks or twelve mahjong tiles of each of the four sides on the tabletop and the mahjong machine receives the second card placing signal, the card lifting tray descends again. The card placing push head enters the card storage slot again to push the remaining mahjong tiles onto the card lifting tray. The card lifting tray rises to place the mahjong tiles on the tabletop. The card placing push head moves to the outside of the inlet of the card storage slot through the avoidance opening on the side wall of the card lifting slot again, waiting for the next card placing. In this way, by using card placing in stages, the player can start playing cards by standing up the six stacks or twelve mahjong tiles placed in the first stage, 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 using card placing in stages, while placing six stacks or twelve mahjong tiles or other set numbers of mahjong tiles in the first stage, the card feeding device and the card pushing device can continue to send mahjong tiles into the card storage slot for storage. In this way, the card storage 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 placed in one stage. Therefore, the length of the card storage slot can be greatly shortened, and further, 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.

[0103] The above mahjong machine can also adopt one-time card loading, that is, the card pushing device pushes all the mahjong tiles on one side (for example, 18 stacks on each of the four sides) into the card storage slot of the card loading component at one time. The card loading push head 505 is located outside the card inlet of the card storage slot; when the mahjong machine receives a card loading signal, the card lifting tray in the card lifting component descends, and the card loading push head 505 in the card loading component pushes the mahjong tiles in the card storage slot to the card lifting tray 601 in the card lifting component for card loading under the drive of the card loading drive mechanism. After the card loading is completed, the card lifting tray rises to be flush with the mahjong machine tabletop.

[0104] A sensor 504 for detecting the position state of the card loading push rod 503 or the card loading push head 505 and / or the mahjong tiles is provided on the above-mentioned card loading support 501: In the card loading component adopting the one-time card loading method, at least two sensors are required, which are respectively used to detect the position information when the card loading push head stays outside the card inlet of the card storage slot waiting for card pushing and the position information when the card loading push head 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 card loading component adopting the phased card loading method, at least three sensors are required, which are respectively used to detect the position information when the card loading push head stays outside the card inlet of the card storage slot waiting for card pushing, the position information when the card loading push head stays in the card storage slot waiting for the first card loading signal, and the position information when the card loading push head 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 card loading push head is determined by the sensor, and it is timely feedback, convenient to control, accurate in action, and reduces faults.

[0105] The above-mentioned sensor for detecting the card loading push head can be a direct detection method or an indirect detection method. For example, the position of the drive mechanism of the card loading push head is detected to obtain the corresponding position information of the card loading push head, such as detecting the position information of the card loading push rod to obtain the position information of the card loading 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 convert the position information of the card loading push head. The above-mentioned sensor can be various proximity sensors such as Hall sensors, photoelectric sensors, ultrasonic sensors, etc., or various contact sensors such as limit switches.

[0106] The above-mentioned first card loading signal is generally generated by a player pressing a control button. The above-mentioned second card loading 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 provided on the card lifting tray 601. The sensor can also be other sensors provided on the tabletop or the card lifting support for detecting the action state and / or load-bearing state of the card lifting tray.

[0107] Embodiment 2:

[0108] As Figure 11An automatic mahjong machine shown in the figure includes a large shuffling 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 large shuffling plate. The card-picking and transporting systems include a card-sending device 3 for picking up mahjong tiles one by one from the large shuffling 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 multiple stacks of arranged mahjong tiles onto the mahjong table along a ramp. The ramp card-playing device includes a card-playing component 5 and a card-lifting component 6.

[0109] In this embodiment, the difference from Embodiment 1 is only the specific structure of the card-playing component, and the structures of other devices of the mahjong machine are the same as those in Embodiment 1. The specific structure of the card-playing component in this embodiment is described as follows:

[0110] As Figures 12 to 15 shown, in this embodiment, the card-playing component includes a card-playing support 501. A card storage slot for storing multiple stacks of mahjong tiles and a card-playing push head 505 for pushing the mahjong tiles out of the card storage slot are provided on the card-playing support 501. The card storage slot is curved in an arc and the bending angle is greater than 180°. The card inlet direction of the card storage slot inlet 5011 and the card outlet direction of the card storage slot outlet 5012 form an included angle of 45° to 90°. The card-playing push head 505 is driven by a card-playing 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-playing driving mechanism of the card-playing push head 505 is arranged inside the arc bending of the card storage slot.

[0111] In this embodiment, the card-playing driving mechanism is a card-playing push rod 503 that rotates around a fixed point. The card-playing push head 505 is installed on the card-playing push rod 503. The card-playing push rod 503 is in transmission connection with a card-playing motor 506 through a gear transmission mechanism 507. The various transmission connection methods between the card-playing driving mechanism and the motor and the motor installation position methods are the same as those in Embodiment 1. Refer to Embodiment 1 for details and will not be elaborated here.

[0112] In this embodiment, preferably, two layers of mahjong tiles are stored in the card storage slot, and single-layer / single-piece mahjong tiles can also be stored. The card storage slot is curved in an arc and the bending angle is 185° to 330°. The card inlet direction of the card storage slot inlet and the card outlet direction of the card storage slot outlet form an included angle of 45° to 90°. The base of the card storage slot is formed on the card-playing support 501. The card storage slot includes at least one arc bending section and at least one straight section. The card storage slot outlet is preferably a straight section to facilitate connection with the ramp formed by the lowering of the card-lifting tray.

[0113] In order to reduce the frictional resistance between the mahjong tiles and the bottom of the card storage slot, while not significantly increasing the cost, a bottom wear-resistant piece 508 is provided at the bottom of the card storage slot. The bottom wear-resistant piece 508 is preferably made of a material with a smooth and wear-resistant surface, such as polyoxymethylene, polytetrafluoroethylene, etc. The bottom wear-resistant piece 508 is installed as an independent component in the card storage slot of the upper card bracket, and the upper card bracket is made of a material with relatively poor performance and lower price, which can not only meet the usage requirements, but also reduce the manufacturing cost of the machine. The bottom wear-resistant piece is preferably positioned in cooperation with the upper card bracket through multiple buckles and locked and fixed by fasteners for convenient installation.

[0114] For the convenience of description, the side close to the center position of the arc-shaped curved card storage slot is defined as the inner side, and the side far from the center position of the arc-shaped curved card storage slot 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 slot (especially the side walls of the arc-shaped curved section), while not significantly increasing the cost, wear-resistant pieces 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 pieces 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 pieces or wear-resistant strips are fixedly connected in cooperation with the upper card bracket or integrally formed on the upper card bracket for convenient installation and manufacturing.

[0115] In order to further reduce the collision friction between the mahjong tiles and the inner and outer side walls, wear-resistant pieces or wear-resistant strips of the card storage slot with a large-angle arc-shaped bend, a preferred solution is that 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 arc-shaped curved section 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-shaped curved section position of the card storage slot, 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. As Figure 15 、 Figure 16 shown, in this embodiment, the bottom inclined structure of the card storage slot at the arc-shaped curved section position is formed by the bottom wear-resistant piece 508. The outer part of the bottom wear-resistant piece 508 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. A plurality of bottom ribs 5081 for contacting the mahjong tiles are provided on the bottom wear-resistant piece 508. The bottom ribs 5081 extend along the card storage slot, and the bottom ribs close to the outer side of the card storage slot are higher than the bottom ribs close to the inner side of the card storage slot. In this way, by setting the bottom ribs with different inner and outer heights, the mahjong tiles on the bottom wear-resistant piece 508 show a centripetal inclination with a higher outer side and a lower inner side. The bottom wear-resistant piece 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 piece 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 pieces of the inlet section and the outlet section are independently formed, and the surface smoothness is also better.

[0116] In this embodiment, the entrance 5011 of the card storage slot needs to cooperate with the card pushing device 4, so the entrance 5011 of the card storage slot is flat, and the heights of the inner and outer sides of the mahjong tiles at this position are the same; the exit 5012 of the card storage slot needs to cooperate with the card lifting plate 601, so the exit 5012 of the card storage slot is also flat, and the heights of the inner and outer sides of the mahjong tiles at this position are the same. Therefore, in this embodiment, it is preferred that the mahjong tiles are placed flat at the entrance 5011 and the exit 5012 of the card storage slot, and are centripetally inclined with the outer side higher and the inner side lower at the position between the entrance 5011 and the exit 5012 of the card storage slot. The centripetal inclination angle first increases and then decreases from the entrance 5011 to the exit 5012 of the card storage slot, and the maximum centripetal inclination angle does not exceed 45°, and more 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 slot be minimized, but also the cooperation and connection between the card storage slot and the card pushing device 4 and the card lifting assembly 6 are facilitated, and the molding and manufacturing of the card placing bracket are also facilitated.

[0117] In this embodiment, it is preferred that 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 vertically inserted and clamped with the card placing bracket 501 through the insertion part 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 placing bracket, which is convenient for assembly and has low manufacturing cost.

[0118] In order to reduce the movement resistance of the mahjong tiles in the card storage slot, outer convex ribs 5023 for contacting the mahjong tiles are provided on the outer wear-resistant sheet 502, and the outer wear-resistant sheet 502 contacts and blocks the mahjong tiles through the outer convex ribs 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.

[0119] In this embodiment, it is preferred that the outer wear-resistant sheet 502 is provided with an inner convex part 5021 near the exit 5012 of the card storage slot. The inner convex part 5021 can push the mahjong tiles inward, thereby increasing the movement resistance of the mahjong tiles at the exit 5012 of the card storage slot and preventing the mahjong tiles from falling back onto the shuffling tray when the card lifting plate has not descended.

[0120] In this embodiment, it is preferred that the inner convex part 5021 is an elastic sheet that warps inward from the outer wear-resistant sheet 502, and one end or both ends of the elastic sheet are fixedly connected or integrally formed with the outer wear-resistant sheet 502. In this way, not only can the movement resistance of the mahjong tiles at the exit of the card storage slot be increased to prevent falling, but also the slope card playing is not affected, and the manufacturing cost is low.

[0121] 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 slot. The inner ribs are arranged along the moving path of the mahjong tiles in the card storage slot, and the inner ribs protrude into the card storage slot from the inside to outside, 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 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.

[0122] Correspondingly, an up-and-down offset design is also formed on the outer side wall of the card storage slot 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 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. This up-and-down offset design can be to form a stepped portion with upper and lower layers on the outer side wall of the card storage slot or on the outer wear-resistant sheet. The outer side wall of the card storage slot 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 slot 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 slot or on the outer wear-resistant sheet that are arranged along the moving path of the mahjong tiles in the card storage slot. 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 moving stroke of the upper-layer mahjong tiles in the card storage slot greater than that of the lower-layer mahjong tiles in the card storage slot.

[0123] In this embodiment, the first inner rib 5111 is located below and blocks and contacts the lower-layer mahjong tiles from the inside, and the second inner rib 5112 is located above and blocks and contacts the upper-layer mahjong tiles from the inside. The width of the second inner rib 5112 is greater than that of the first inner rib 5111. In this way, the inner side wall of the card storage slot no longer contacts the mahjong tiles and is no longer used to block the mahjong tiles from the inside. Instead, the inner ribs on the inner wear-resistant sheet are used to block and contact the mahjong tiles, which has multiple benefits: First, it reduces the contact area between the mahjong tiles and the inside of the card storage slot, not only reducing the moving 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 slot at low cost and accurately, so as to minimize the collisions, resistance and noises between the mahjong tiles and the card storage slot; Third, it enhances the versatility of the card-lifting assembly. On the same card-lifting bracket, the width of the inner ribs can be designed differently to adjust the width of the card storage slot to be suitable for mahjong tiles of different sizes; Fourth, it reduces the forming difficulty and manufacturing cost of the card-lifting bracket.

[0124] In this embodiment, preferably, 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 inner part of the card storage slot of the inner wear-resistant member 511. An inward notch 5114 and a card blocking portion 5115 are respectively formed on the outer 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. In this way, it is not only convenient for installation and has low manufacturing cost, but also has good integrity of the wear-resistant member, is smooth and wear-resistant.

[0125] The inner wear-resistant member is sleeved on the card feeding support and is fixedly connected to the card feeding support through fasteners and / or buckles. In this embodiment, preferably, the top 5113 of the inner wear-resistant member 511 extends inward to form a fixing edge, and a plurality of through holes are provided on the fixing edge. A plurality of fasteners pass through the through holes to fix the inner wear-resistant member 511 on the card feeding support 501.

[0126] In this embodiment, the inner side wall of the card storage slot can be arranged vertically or can be arranged with a centripetal inclination. The centripetal inclination angle first increases and then decreases from the card inlet 5011 of the card storage slot to the card outlet 5012 of the card storage slot, and the maximum centripetal inclination angle does not exceed 45°, and more preferably does not exceed 15°. This facilitates the forming and manufacturing of the card feeding support and the installation of the inner wear-resistant member, and reduces the manufacturing cost.

[0127] The structure of the components of the card feeding assembly not described in the above description of this embodiment is set in the same way as that 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.

[0128] 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.

[0129] 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 principle and purpose of the present invention.

Claims

1. A mahjong machine tile-feeding component, comprising a tile-feeding support (501). A tile storage groove for storing multiple stacks of mahjong tiles and a tile-feeding pusher head (505) for pushing the mahjong tiles out of the tile storage groove are provided on the tile-feeding support (501). The tile storage groove is arc-shaped and bent at an angle greater than 180°. The tile-feeding direction at the inlet (5011) of the tile storage groove forms an angle of 45° to 90° with the tile-outlet direction at the outlet (5012) of the tile storage groove. The tile-feeding pusher head (505) is driven by a tile-feeding driving mechanism to move along the tile storage groove from the outside of the inlet (5011) of the tile storage groove to the outlet (5012) of the tile storage groove and then return to the outside of the inlet (5011) of the tile storage groove. It is characterized in that, The card storage slot includes at least one arc-shaped bending section. The bottom of the card storage slot adopts an inclined supporting structure with the outer side higher than the inner side at the position of the arc-shaped bending section for the mahjong tiles, so that the mahjong tiles show a centripetal inclination with the outer side higher than the inner side at this arc-shaped bending section position; a wear-resistant sheet for contacting the mahjong tiles is provided on the inner side of the card storage slot.

2. A mahjong machine card assembly according to claim 1, characterized in that: A number of inner convex ribs for blocking contact with the mahjong tiles are formed on the wear-resistant sheet on the inner side of the card storage slot, and the inner convex ribs are arranged along the moving path of the mahjong tiles in the card storage slot.

3. A mahjong machine card assembly according to claim 2, characterized in that: The inner convex ribs protrude into the card storage slot from the inside to the outside. Correspondingly, an up-and-down offset design is also formed on the outer side wall of the card storage slot or on the outer wear-resistant sheet, so that the upper-layer mahjong tiles in the card storage slot are more outward relative to the lower-layer mahjong tiles, thereby making the moving stroke of the upper-layer mahjong tiles in the card storage slot greater than that of the lower-layer mahjong tiles in the card storage slot.

4. A mahjong machine card assembly according to claim 2, characterized in that: A first inner convex rib (5111) and a second inner convex rib (5112) are formed on the wear-resistant sheet on the inner side of the card storage slot. The first inner convex rib (5111) is located below and blocks contact with the lower-layer mahjong tiles from the inside, and the second inner convex rib (5112) is located above and blocks contact with the upper-layer mahjong tiles from the inside. The width of the second inner convex rib (5112) is greater than the width of the first inner convex rib (5111).

5. A mahjong machine card assembly according to claim 4, characterized in that: The wear-resistant sheets on the inner side of the card storage slot are connected end to end to form an annular inner wear-resistant member (511). The first inner convex rib (5111) and the second inner convex rib (5112) are arranged on the part of the inner wear-resistant member (511) inside the card storage slot. An inner concave opening (5114) and a card blocking part (5115) are respectively formed on the part of the inner wear-resistant member (511) outside the card storage slot. The inner concave opening (5114) is close to the card outlet of the card storage slot, and the card blocking part (5115) is close to the card inlet of the card storage slot; a card sending detection device (5013) and / or a card blocking rack (403) are arranged on the card blocking part (5115); the inner wear-resistant member (511) is sleeved on the upper card bracket (501) and is fixedly connected to the upper card bracket (501) through fasteners and / or buckles.

6. A mahjong machine card assembly according to claim 5, characterized in that: The top (5113) of the inner wear-resistant member (511) extends inward to form a fixed edge, and a plurality of through holes are provided on the fixed edge. A plurality of fasteners pass through the through holes to fix the inner wear-resistant member (511) on the upper card bracket (501).

7. The components for dealing mahjong tiles of a mahjong machine according to claim 1, characterized in that, The bottom wall of the card storage slot is of an inclined structure with the outer side higher than the inner side at the position of the arc-shaped bending section, so that the mahjong tiles show a centripetal inclination with the outer side higher than the inner side; the inner side wall of the card storage slot is arranged in a centripetal inclination, and the centripetal inclination angle first increases and then decreases from the card inlet (5011) to the card outlet (5012) of the card storage slot, and the maximum centripetal inclination angle does not exceed 45°.

8. The upper card component of a mahjong machine according to claim 1, characterized in that, A bottom wear-resistant sheet for contacting the mahjong tiles is provided at the bottom of the card storage slot. The bottom wear-resistant sheet is positioned in cooperation with the upper card bracket (501) through a plurality of buckles and is fixedly locked through fasteners; at least one bottom convex rib for contacting the mahjong tiles is provided on the bottom wear-resistant sheet, 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 show a centripetal inclination with the outer side higher than the inner side.

9. A mahjong machine card assembly according to claim 1, characterized in that: The mahjong tiles are laid flat at the inlet (5011) and the outlet (5012) of the tile storage slot, while the mahjong tiles are in a centripetal inclination with the outer side higher and the inner side lower between the inlet (5011) and the outlet (5012) of the tile storage slot. The centripetal inclination angle first increases and then decreases from the inlet (5011) to the outlet (5012) of the tile storage slot, and the maximum centripetal inclination angle does not exceed 45°.

10. A mahjong machine, comprising a central control panel assembly located at the center of the machine frame bottom plate 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 stacks of arranged mahjong tiles onto the mahjong table along a ramp. The ramp card playing device includes a card placing 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 tile feeding assembly is a mahjong machine tile feeding assembly as described in any one of claims 1 to 9.

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