Mahjong machine and inclined tile delivery device thereof

Abstract

The application discloses a mahjong machine and a slope mahjong dispensing device thereof, wherein the planet carrier and the planet wheel driven by the main motor rotate around the sun wheel fixedly, the mahjong pushing rod is driven to rotate and push the mahjong by the planet carrier, the planet wheel and the rotating disc, the mahjong lifting arm is driven to swing by the planet carrier, the swing rod, the rack and the lifting gear, and the lifting plate is driven to lift and lift the mahjong, so that the lifting plate lifting action and the mahjong pushing action of the pushing head do not interfere with each other. The transmission gear drives the rotating disc to rotate in a gap mode through the planet carrier and the planet wheel to realize the action switching of the pushing head moving and pushing the mahjong and stopping and waiting, and the circular arc positioning structure is arranged between the transmission gear and the rotating disc to realize the accurate positioning and locking of the stopping position of the pushing head, so that the action operation of the slope mahjong dispensing device is more reliable, and the mahjong dispensing efficiency is higher.

Description

Technical Field

[0001] This invention belongs to the field of mahjong machine manufacturing, and particularly relates to a mahjong machine and its inclined card-dispensing device. Background Technology

[0002] Patent documents with publication numbers CN106492454A, CN106512390A, CN106861176A, CN106823363A, CN106621315A, CN106669142A, CN108339265A, CN107233724A, CN108245878A, CN117654012A, and CN118681201A disclose a mahjong machine, including a large shuffling tray located in the center of the machine frame base plate. Four sets of tile-picking and transporting systems are arranged around the shuffling tray. Each tile-picking and transporting system includes a tile-feeding device for picking up mahjong tiles one by one from the shuffling tray and sending them out, a tile-pushing device for stacking two mahjong tiles into a pile and pushing them out, and a device for pushing the stacked mahjong tiles along... The mahjong machine features a ramp-driven card-dispensing device that delivers cards to the tabletop. This device includes a card-feeding component and a card-lifting component. The machine's four card-collecting and transporting systems are independently configured without overlap. The card storage slot is curved with an angle greater than 180°. The card-feeding direction at the card-inlet of the storage slot forms a 45° to 90° angle with the card-dispensing direction at the outlet. Within the same card-collecting and transporting system, the card-lifting component and the card-feeding device are directly adjacent and positioned outside the curved surface of the storage slot. The card-feeding drive mechanism of the card-feeding pusher is located inside the curved surface of the storage slot. The card-dispensing outlet of the card-feeding device has a card-pushing device whose pushing direction forms an 80° to 100° angle with the card-dispensing direction. The card-feeding direction of the storage slot in the card-feeding component forms a 0° to 10° angle with the pushing direction of the card-pushing device. In this mahjong machine structure, both the card-feeding and card-lifting components are driven by independent motors, resulting in high manufacturing costs and significant debugging difficulties.

[0003] Patent documents with publication numbers CN206473781U, CN106994243A, CN212016700U, CN223184052U, and CN219251622U disclose a card-feeding mechanism for a mahjong machine. This mechanism employs a planetary gear system for storing and feeding cards. Specifically, it includes a drive motor, a drive gear (sun gear), planetary gears, an internal gear (internal gear ring), an upper turntable, and a card-pushing arm (card-feeding push rod). The drive gear is rotatably mounted on the card-feeding bracket. The drive motor drives the drive gear (sun gear) to rotate. Multiple planetary gears mesh with and rotate around the drive gear (sun gear). The internal gear (internal gear ring) is fitted around and meshes with the planetary gears. Rotational power is output through the planetary carrier or the internal gear (internal gear ring), thereby driving the card-pushing arm (card-feeding push rod) to rotate and push the cards. Thus, the planetary reduction structure increases torque to enhance the card-pushing force, ensuring stable and reliable card-pushing. However, in this mahjong machine structure, the tile-adding component and the tile-raising component are driven by their own independent motors, resulting in high manufacturing costs and difficult debugging.

[0004] Patent document CN111450519A discloses an integrated linkage tile-lifting mechanism for a mahjong machine, including a tile-pushing component, a tile-lifting component, and a driving component. The tile-pushing component includes a tile-pushing groove for accommodating mahjong tiles and a tile-pushing assembly for pushing the mahjong tiles along the tile-pushing groove. The tile-lifting component includes a tile-lifting plate for carrying mahjong tiles and a tile-lifting assembly for driving the tile-lifting plate. The annular tile-pushing groove includes a tile inlet and a tile outlet. The other end of the tile-lifting plate, which can be connected to the tile outlet at one end, extends to the tabletop. The driving component includes a gear system and a driving element. The gear system includes a driving gear, a driven gear system, and an incomplete gear with a notch. Both the driven gear system and the incomplete gear mesh with the driving gear. When the notch of the incomplete gear that drives the tile-pushing assembly to rotate meshes with the driving gear, the tile-lifting assembly driven by the driven gear system pushes the tile-lifting plate to move until it is flush with the tabletop. The drive component rotates the driving gear, which in turn drives the incomplete gear of the tile-pushing component to mesh with the driving gear. The driven gear system of the tile-lifting component also meshes with the driving gear. When the teeth on the incomplete gear mesh with the driving gear, the tile-pushing component pushes the mahjong tiles from the inlet to the outlet. When the tiles reach the outlet, the tile-lifting component lowers the tile-lifting plate, and the tile-pushing component pushes the tiles onto the rising plate. Once all the tiles have slid onto the rising plate, the notch on the incomplete gear meshes with the driving gear, and the tile-pushing component returns to its original position at the inlet of the tile-pushing slot. Simultaneously, after all the tiles have slid onto the rising plate, the tile-lifting component raises the plate, and the mahjong tiles are transported to the tabletop. Although this mahjong machine uses a single drive component to control both the tile-pushing and tile-lifting components, the incomplete gear transmission structure suffers from problems such as structural complexity, inaccurate positioning, susceptibility to gear breakage, and high noise levels.

[0005] Patent document CN118543089A discloses a mahjong machine linkage device, including a frame and a tile-loading plate. The frame has a track groove, and a tile-loading plate support is provided at one end of the track groove. The tile-loading plate support can raise or lower one end of the tile-loading plate. The frame is also provided with a linkage mechanism, a transmission mechanism, and a drive component. The drive component drives the mahjong tiles placed in the track groove to move along the track through the linkage mechanism. At the same time, the linkage mechanism drives the tile-loading plate support to lower synchronously through the transmission mechanism to complete the tile loading. After the tiles are loaded, the drive component drives the tile-loading plate support to raise and reset through the linkage mechanism and the transmission mechanism. The linkage mechanism is rotatably mounted on the plate frame. The linkage mechanism includes a rotating push plate, with a drive gear and a driving gear on one side. The driving gear is connected to the rotating push plate via an upper push rod and a delay groove. The drive gear and the driving gear mesh with each other. The upper push rod is fixed to one edge of the driving gear, and the delay groove is fixed to one edge of the rotating push plate, with the upper push rod located within the delay groove. A semi-ring gear is located on one side of the driving gear, and the driving gear and the semi-ring gear are connected via a lower push rod and an annular groove. The lower push rod is fixed to the other edge of the driving gear, and the annular groove is formed inside the semi-ring gear, with the lower push rod located within the annular groove. A torsion spring connects the rotating push plate and the driving gear. The transmission mechanism includes a double-headed gear rod, with one end meshing with the semi-ring gear and the other end meshing with a single-headed gear rod. One end of the single-headed gear rod is fixedly connected to the upper plate bracket. The double-headed gear rod and the single-headed gear rod are rotatably mounted on the plate frame. Although the structure of this mahjong machine simplifies the original setup that required two motors and multiple circuit connections and more components by setting up a linkage mechanism and a transmission mechanism, allowing the card-adding and card-raising actions to be achieved with only one motor, the presence of multiple connecting / control components such as torsion springs, magnetic blocks, and limit blocks still results in problems such as complex structure, inaccurate positioning, and unstable and unreliable operation.

[0006] To this end, patent document CN121130404A discloses a ramp card-dispensing device for a mahjong machine. The device uses a planetary carrier and planetary gears that rotate around a fixed sun gear. The planetary carrier, planetary gears, and turntable drive the card-dispensing push rod to rotate and dispense cards. The planetary carrier, swing rod, rack, and card-dispensing gear drive the card-dispensing swing arm to swing and raise and lower the card-dispensing tray. The device cleverly utilizes two transmission paths, the planetary carrier and planetary gears, to achieve multiple coordinated actions controlled by a single motor through mechanical transmission. These actions include: the card-dispensing pusher not dispensing cards when the card-dispensing pusher is lowering; the card-dispensing tray remaining stationary when the card-dispensing pusher is dispensing cards; the card-dispensing pusher not dispensing cards when the card-dispensing tray is rising; and the card-dispensing pusher moving outside the card storage slot after the card-dispensing tray has risen. The raising and lowering actions of the card-dispensing tray and the card-dispensing pusher do not interfere with each other. However, in this technical solution, when the planetary gear does not drive the turntable and the license plate pusher to rotate, the turntable is not completely locked and there is a certain range of random movement space, which leads to inaccurate positioning of the license plate pusher. This can easily cause the license plate pusher to fail to push the license plate into place along the slope or the license plate pusher to move excessively, affecting the lifting and lowering of the license plate tray. Summary of the Invention

[0007] To address the aforementioned technical problems in the prior art, the present invention aims to provide a mahjong machine and its inclined card-dispensing device. The transmission gear drives the turntable to rotate intermittently via a planetary carrier and planetary gears to switch between the actions of moving the card-dispensing pusher and stopping to wait. The transmission gear and the turntable are precisely positioned and locked at the stop position of the card-dispensing pusher through an arc-shaped positioning structure, making the operation of the inclined card-dispensing device more reliable and the card-dispensing efficiency higher.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A ramp-type tile-dispensing device for a mahjong machine includes a tile-feeding component and a tile-lifting component. The tile-feeding component includes a tile-feeding bracket with a tile storage slot for storing multiple stacks of mahjong tiles and a tile-feeding pusher for pushing the tiles out of the storage slot. The storage slot is arc-shaped with a bending angle greater than 180°, and the tile-feeding direction at the slot inlet forms an angle of 45° to 90° with the tile-dispensing direction at the slot outlet. The tile-feeding pusher is driven by a linkage drive mechanism to rotate unidirectionally and push the tiles. The tile-lifting component includes a tile-lifting bracket and a tile-lifting tray. The frame is equipped with a card-lifting slot. The card-discharge end of the card-lifting tray is installed in the card-lifting slot, and the card-inlet end of the card-lifting tray is movable and driven up and down by a linkage drive mechanism. The linkage drive mechanism includes a card-loading push rod, a turntable, a planetary carrier, planetary gears, a sun gear, a swing arm, a linear slider, and a card-lifting swing arm. The sun gear is fixedly connected to the card-loading bracket or integrally formed. The planetary gears mesh with the sun gear and rotate around the sun gear. The planetary gears are rotatably mounted on the planetary carrier, and the planetary carrier is rotatably mounted on the card-loading bracket. The planetary carrier meshes with the transmission gear, which is driven by the plate-raising motor. A turntable is rotatably mounted above the planetary carrier. The planetary gears and the turntable are connected via guide posts and guide grooves, allowing the planetary gears to rotate and drive the turntable. The plate-raising push rod is fixedly connected to the turntable or integrally formed. One end of the swing rod is hinged to the plate-raising bracket, and the other end is movably connected to a linear slider. The planetary carrier and the swing rod are connected via a cam groove and a protrusion, allowing the planetary carrier to rotate and drive the swing rod to swing. The swing rod pushes the linear slider to move linearly, which in turn drives the plate-raising arm to swing, thus raising and lowering the plate-raising tray. The transmission gear has a fixedly connected or integrally formed arc-shaped positioning boss, and the turntable has an arc-shaped positioning groove on its circumference that mates with the arc-shaped positioning boss. When the planetary gears do not drive the turntable, the arc-shaped positioning groove and the arc-shaped positioning boss engage to ensure the turntable remains stationary while the transmission gear continues to rotate. When the arc-shaped positioning groove and the arc-shaped positioning boss separate, the planetary gears can drive the turntable to rotate.

[0009] Preferably, the arc-shaped positioning boss is located above the circumferential teeth of the transmission gear, and the circumferential teeth of the transmission gear mesh with the planetary carrier for transmission. The rotation radius of the outer arc surface of the arc-shaped positioning boss is smaller than the rotation radius of the tooth tip surface of the circumferential teeth of the transmission gear. The arc-shaped positioning groove on the turntable is an inverse arc shape opposite to the circumference of the turntable, and the arc-shaped positioning groove is set on the protrusion of the outer contour of the turntable.

[0010] Preferably, the arc angle range F of the arc-shaped positioning boss on the transmission gear is 55° to 145°, and the arc angle range E of the arc-shaped positioning groove on the circumference of the turntable is 10° to 30°.

[0011] Preferably, the sun gear and the license plate holder are integrally formed, the three planet gears mesh with the sun gear and rotate around the sun gear, the axle of the planet gear is fixedly connected to the planet carrier or integrally formed, the planet carrier is sleeved outside the sun gear so that it can be rotatably mounted on the license plate holder, a central shaft is installed at the center of the sun gear, and a turntable is installed on the top of the central shaft. The license plate push head, license plate push rod and turntable are integrally formed.

[0012] Preferably, the planetary carrier has external teeth on its outer periphery that mesh with the transmission gear, and the transmission gear is directly fixed to the output shaft of the motor.

[0013] Preferably, the linear sliding component is a rack and pinion, with the lifting gear meshing with the rack and pinion for transmission. The lifting gear and the lifting swing arm are respectively located at both ends of the lifting shaft and rotate synchronously. One end of the lifting swing arm is fixedly connected to the lifting shaft or integrally formed, and the other end of the lifting swing arm drives the lifting plate to rise and fall. The lifting gear is installed in a gearbox, which is fixedly installed on the card-raising bracket, the card-raising bracket, or the integrated base or bottom plate of the shuffling bucket. One end of the rack is slidably located in the gearbox and meshes with the lifting gear for transmission. The other end of the rack is provided with a groove and a guide rod. The swing end of the swing arm is provided with a sliding column, which is movably engaged with the groove. The guide rod is fixedly connected to the rack or integrally formed, and a guide sleeve is sleeved on the guide rod. The guide sleeve is fixedly installed on the card-raising bracket, the card-raising bracket, or the integrated base or bottom plate of the shuffling bucket.

[0014] Preferably, the planetary carrier has an annular cam groove at its bottom and a protruding post on its swing arm. The protruding post slides into the cam groove, which includes a first cam groove, a second cam groove, a third cam groove, and a fourth cam groove. When the protruding post is in the first cam groove, the tile-lifting plate has descended to its lowest position and remains stationary. At this time, the tile-adding pusher pushes the mahjong tile wall onto the mahjong machine table along the tile-lifting plate. When the protruding post is in the second cam groove, the tile-lifting plate rises from its lowest position to its highest position, thus sending one side's mahjong tile wall onto the mahjong machine table. When the protruding post is in the third cam groove, the tile-lifting plate rises to its highest position and remains stationary. At this time, the tile-adding pusher does not push tiles. When the protruding post is in the fourth cam groove, the tile-lifting plate descends from its highest position to its lowest position. At this time, the tile-adding pusher waits to push tiles.

[0015] Preferably, the rotation angle of the first cam groove is in the range of 230° to 270°, the rotation angle A of the second cam groove is in the range of 25° to 50°, the rotation angle B of the third cam groove is in the range of 20° to 45°, and the rotation angle C of the fourth cam groove is in the range of 15° to 40°.

[0016] Preferably, the bottom of the turntable is provided with guide grooves that correspond one-to-one with the guide posts on the planetary gears. The guide grooves include a first guide groove and a second guide groove: when the guide post moves in the first guide groove, the planetary gears drive the turntable and the card-adding push rod to rotate through the guide post; when the guide post moves in the second guide groove to the end away from the first guide groove, the planetary gears do not drive the turntable and the card-adding push rod to rotate; when the guide post moves in the second guide groove to the end closer to the first guide groove, the planetary gears drive the turntable and the card-adding push rod to rotate through the guide post.

[0017] Preferably, the extension direction of the first guide groove is consistent with the radial direction of the turntable; the first guide groove is far from the center of the turntable, and the second guide groove is close to the center of the turntable.

[0018] Preferably, the rotation angle D of the second guide groove is in the range of 20° to 40°.

[0019] A mahjong machine, including a ramp card-dispensing device as described above.

[0020] This invention, by employing the above technical solution, utilizes an actively rotating planetary carrier and planetary gears that rotate around a fixed sun gear. The planetary carrier, planetary gears, and turntable drive the card-adding push rod to rotate and add cards. The planetary carrier, swing arm, rack, and card-raising gear drive the card-raising swing arm to swing and raise and lower the card-raising tray. By cleverly utilizing the two transmission paths of the planetary carrier and planetary gears, a single motor can control multiple coordinated actions through mechanical transmission, such as the card-adding push head not pushing cards when the card-adding tray is lowering, the card-adding push head not pushing cards when pushing cards, the card-adding push head not pushing cards when the card-adding tray is rising, and the card-adding push head moving to the outside of the card storage slot after the card-adding tray is raised. The raising and lowering actions of the card-adding tray and the pushing actions of the card-adding push head do not interfere with each other. Furthermore, an arc-shaped positioning boss is set on the transmission gear, and a matching arc-shaped positioning groove is set on the turntable. When the planetary gear does not drive the turntable to rotate, the turntable is completely locked in place by the cooperation of the arc-shaped positioning boss and the arc-shaped positioning groove, without affecting the transmission gear's drive of the card-lifting tray to rise and fall. This ensures that the card-push head stops at a precise and stable position without wobbling, effectively avoiding malfunctions such as incomplete card pushing or interference with the card-lifting tray's rise and fall. The overall structure is simple and reasonable, with good action connection, stable and reliable operation, smooth and continuous mahjong machine operation, low noise, and a good user experience. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0022] Figure 1 This is a schematic diagram of the inclined card-dispensing device of the present invention.

[0023] Figure 2This is a schematic diagram of the transmission and operation of the inclined card dispensing device of the present invention (the card pusher moves to the outlet of the card storage slot, and the card lifting plate is ready to rise).

[0024] Figure 3 This is a schematic diagram of the transmission and engagement of the inclined card dispensing device of the present invention (the arc-shaped positioning groove and the arc-shaped positioning boss are fully engaged and positioned, the card pushing head stops moving, and the card lifting plate begins to rise).

[0025] Figure 4 This is a schematic diagram of the transmission and engagement of the inclined card dispensing device of the present invention (the arc-shaped positioning groove and the arc-shaped positioning boss are mostly engaged and positioned, the card pushing head stops moving, and the card lifting tray rises during the process).

[0026] Figure 5 This is a schematic diagram of the transmission and engagement of the inclined card dispensing device of the present invention (the arc-shaped positioning groove and the arc-shaped positioning boss partially engage and position each other, the card pushing head stops moving, and the card lifting plate rises to its position).

[0027] Figure 6 This is a schematic diagram of the transmission and engagement of the inclined card dispensing device of the present invention (the arc-shaped positioning groove and the arc-shaped positioning boss are separated, and the card pushing head moves to the area below the card lifting plate outside the card storage groove).

[0028] Figure 7 This is a schematic diagram of the linkage drive mechanism of the inclined card-dispensing device of the present invention.

[0029] Figure 8 This is a schematic diagram of the linkage drive mechanism of the inclined card-dispensing device of the present invention (motor omitted).

[0030] Figure 9 This is a schematic diagram of the transmission connection between the card-feeding component and the card-lifting component in the inclined card-dispensing device of the present invention.

[0031] Figure 10 This is a schematic diagram of the bottom of the planetary carrier.

[0032] Figure 11 This is a diagram of the bottom of the license plate pusher.

[0033] Figure 12 This is a schematic diagram of the transmission connection between the turntable, the guide post on the planetary gear, and the arc-shaped positioning boss on the transmission gear.

[0034] The attached figures are labeled as follows: 500, card storage slot, 501, outer wear-resistant plate, 502, card-loading push rod, 503, turntable, 5031, first guide groove, 50311, second guide groove, 50312, magnet, 5032, arc-shaped positioning groove, 5033, sensor, 504, card-loading push head, 505, card-loading motor, 506, transmission gear, 507, arc-shaped positioning boss, 5071, bottom wear-resistant plate, 508, planetary carrier, 509, cam groove, 5091, first cam groove. 0911, Second cam groove 50912, Third cam groove 50913, Fourth cam groove 50914, Sun gear 510, Rocker arm 511, Protruding column 5111, Sliding column 5112, Planetary gear 512, Guide column 5121, Plate lifting assembly, Plate lifting support plate 601, Plate lifting rocker arm 602, Plate lifting gear 603, Rack 604, Slide groove 6041, Guide rod 6042, Guide sleeve 6043, Gearbox 6044, Plate lifting shaft 605. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0037] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of this invention, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example

[0043] like Figure 1 The mahjong machine shown includes a shuffling tray and a central control panel assembly located in the center of the base plate. Four sets of card picking and transporting systems are arranged around the shuffling tray. The card picking and transporting system includes a card feeding device for picking up mahjong tiles one by one from the shuffling tray and sending them out, a card pushing device for stacking two mahjong tiles into a pile and pushing them out, and a slope card dispensing device for sending multiple piles of mahjong tiles up a slope onto the mahjong machine table. The slope card dispensing device includes a card loading component and a card lifting component.

[0044] The tile-feeding device includes a tile-feeding box with a tile-feeding channel inside for transferring mahjong tiles. A tile-suction wheel is provided at the tile-feeding channel's inlet. In this embodiment, a conveyor belt driven by a tile-feeding motor is provided within the tile-feeding channel. For specific structural details, please refer to patent documents with publication numbers CN105413161A, CN119656573A, CN220801883U, CN213965119U, CN206924397U, CN108339265A, CN202682759U, and CN104645609A.

[0045] The tile-pushing device in this embodiment can realize the stacking and pushing function, including a tile-pushing head and a tile-receiving platform. The specific structure of this tile-pushing device can be found in patent documents with publication numbers CN201906453U, CN201949619U, CN103861280A, and CN204699375U. Generally, a tile-pushing device with stacking and pushing function includes a head box, a tile-pushing motor mounted on the head box, a transmission mechanism inside the head box, and a tile-pushing head and a tile-receiving platform outside the head box. The tile-pushing motor drives the tile-receiving platform to move up and down through the transmission mechanism to stack the mahjong tiles, and the tile-pushing motor drives the tile-pushing head to move horizontally through the transmission mechanism to push out the stacked mahjong tiles. Of course, this tile-pushing device can also be other mechanisms capable of supporting a stack of mahjong tiles on the tile-receiving platform and pushing out a stack of mahjong tiles by the tile-pushing head. The head unit is equipped with a counting and detection device for detecting the number of times and / or the quantity of tiles pushed. A tile-blocking frame is located near the tile-feeding platform. The tile outlet of the tile-feeding device and the tile-blocking frame are located on opposite sides of the tile-feeding platform. On one of the other opposite sides of the tile-feeding platform, a tile-pushing head is located, and on the other side, the tile-pushing head pushes the mahjong tiles out of the tile-feeding platform. In this embodiment, the tile-feeding detection device for detecting whether the tile outlet of the tile-feeding device has fed mahjong tiles to the tile-feeding platform is located on the tile-blocking frame, or it can be located on the side of the tile-feeding platform where the tile-pushing head is located, to improve detection accuracy and reliability. This tile-feeding detection device can be installed on an extension of the tile-blocking frame or on the tile-pushing head.

[0046] In this embodiment, as Figure 1 As shown, the tile-loading assembly includes a tile-loading bracket 501, which has a tile storage slot 500 for storing multiple mahjong tiles and a tile-loading pusher 505 for pushing the mahjong tiles out of the storage slot. The storage slot 500 is curved in an arc shape with a bending angle greater than 180°. The tile-in direction at the inlet of the storage slot forms an angle of 45° to 90° with the tile-out direction at the outlet of the storage slot. The tile-loading pusher 505 is driven by a linkage drive mechanism to move from outside the tile inlet of the storage slot 500 along the storage slot 500 to the tile outlet of the storage slot 500 and then back to outside the tile inlet of the storage slot 500.

[0047] In this embodiment, the card-lifting assembly includes a card-lifting bracket, a card-lifting tray 601, and a card-lifting motor. The card-lifting bracket has a card-lifting groove, and the card-lifting tray 601 is located above the card-lifting groove. One end of the card-lifting tray (i.e., the card outlet end) is installed on the card-lifting groove, and the other end of the card-lifting tray (i.e., the card inlet end) is movable and driven up and down by a linkage drive mechanism. The card-lifting bracket is also equipped with a sensor for detecting the position of the card-lifting tray, such as two Hall elements or photoelectric sensors. The design of the card-lifting tray and the bottom card-lifting cam can be found in patent documents with publication numbers CN111450519A and CN118543089A, which are all prior art.

[0048] The four sets of card-collecting and transporting systems of the mahjong machine of this invention are set up independently and without overlapping. That is, the card-lifting component is set inside the card-feeding device in the same set of card-collecting and transporting systems and the two are directly adjacent to each other. In the same set of card-collecting and transporting systems: the card-lifting component is set inside the card-feeding device, and the card-lifting component and the card-feeding device are set outside the arc-shaped bend of the card storage slot. The card-dispensing direction of the card-feeding device and the card-infeeding direction of the card-lifting component form an angle of 135° to 180°. The card-dispensing port of the card-feeding device is equipped with a card-pushing device. The card-pushing direction of the card-pushing device forms an angle of 80° to 100° with the card-dispensing direction of the card-feeding device. The card-receiving platform in the card-pushing device is located outside the card-infeeding port of the card storage slot in the card-raising component. The card-infeeding direction of the card storage slot in the card-raising component forms an angle of 0° to 10° with the card-pushing direction of the card-pushing device. The card-dispensing port of the card storage slot in the card-raising component connects to the card-infeeding port of the card-lifting slot in the card-raising component. The card-dispensing direction of the card storage slot in the card-raising component forms an angle of 0° to 5° with the card-infeeding direction of the card-raising component. The structure of this type of mahjong machine can be referenced in patent documents with publication numbers CN106492454A, CN106512390A, CN106861176A, CN106823363A, CN106621315A, CN106669142A, CN108339265A, CN107233724A, CN108245878A, CN117654012A, CN118681201A, CN121130404A, etc.

[0049] In this embodiment, the card-pushing device's card-blocking frame and card-raising bracket are fixedly connected or integrally formed. The card-feeding box, card-raising bracket, and card-raising bracket in the four-way card-picking and handling system can be fixedly connected or several can be combined and integrally formed, just as the card-raising bracket and card-raising bracket in the same one-way card-picking and handling system are fixedly connected or integrally formed. Preferably, this embodiment uses a four-way integrally formed annular shell as the mounting base (integrated shuffling bucket base 1) for the four-way card-feeding device and the four-way card-raising component, which facilitates assembly and provides a simple and reliable structure.

[0050] To reduce the frictional resistance between the mahjong tiles and the bottom of the storage slot without significantly increasing costs, a bottom wear-resistant plate 508 is provided at the bottom of the storage slot. The bottom wear-resistant plate 508 is preferably made of a smooth, wear-resistant material, such as polyoxymethylene or polytetrafluoroethylene. In this embodiment, an outer wear-resistant plate 502 is preferably installed on the outer wall of the storage slot. The outer wear-resistant plate 502 is engaged with the upper tile bracket 501 via its lower insert and snap-fit, and is locked in place by fasteners. This allows the outer wear-resistant plate to be manufactured as an independent component, enabling quick positioning and installation within the storage slot of the upper tile bracket, facilitating assembly and reducing manufacturing costs.

[0051] In this preferred embodiment, such as Figures 7 to 9 As shown, the linkage drive mechanism includes a card-raising push rod 503, a turntable 5031, a planetary carrier 509, planetary gears 512, a sun gear 510, a swing rod 511, a rack 604, a card-raising swing arm 602, a card-raising gear 603, and a card-raising rotating shaft 605. The sun gear 510 is fixedly connected to or integrally formed with the card-raising bracket 501. The three planetary gears 512 mesh with the sun gear 510 and rotate around the sun gear 510. The planetary gears 512 are rotatably mounted on the planetary carrier. On the planet carrier 509, the planet carrier 509 is fitted over the sun gear 510 and thus rotatably mounted on the mounting bracket 501. The planet carrier 509 meshes with the transmission gear 507, which is driven by the mounting motor 506. The turntable 5031 is rotatably mounted above the planet carrier 509. The planet gear 512 and the turntable 5031 are connected by a guide post 5121 and a guide groove, so that the rotation of the planet gear 512 can drive the turntable. Rotation of 5031 causes the card-raising push rod 503 to be fixedly connected to or integrally formed with the turntable 5031. One end of the swing rod 511 is hinged to the card-raising bracket 501, and the other end of the swing rod 511 is movably connected to the rack 604. The rack 604 is mounted on the card-raising bracket 501, the card-raising bracket, or the base plate in a linear sliding manner. The planetary carrier 509 and the swing rod 511 are connected by a cam groove 5091 and a cam post to achieve a transmission connection, so that the rotation of the planetary carrier 509 can drive the swing rod 511. The swing arm 511 can drive the rack 604 to move linearly; the lifting gear 603 and the lifting arm 602 are respectively set at both ends of the lifting shaft 605 and the three rotate synchronously. The lifting gear 603 meshes with the rack 604 for transmission. One end of the lifting arm 602 is fixedly connected to the gear shaft 605 or integrally formed. The other end of the lifting arm 602 cooperates with the lifting cam at the bottom of the lifting plate 601, so that the swing arm 602 can drive the lifting plate 601 to rise and fall.

[0052] In this way, the planetary carrier and planetary gears rotate around the stationary sun gear, driving the card-adding pusher to rotate and add cards via the planetary carrier, planetary gears, and turntable. The card-adding swing arm swings and moves the card-adding tray up and down via the planetary carrier, swing arm, rack and pinion, and card-adding gear. By cleverly utilizing the two transmission paths of the planetary carrier and planetary gears, a single motor can control multiple coordinated actions through mechanical transmission, such as the card-adding pusher not pushing cards when the card-adding tray is lowering, the card-adding pusher not pushing cards when pushing cards, the card-adding pusher not pushing cards when the card-adding tray is rising, and the card-adding pusher moving outside the card storage slot after the card-adding tray is raised. The raising and lowering actions of the card-adding tray and the pushing actions of the card-adding pusher do not interfere with each other. The structure is simple and reasonable, the actions are well connected, and the operation is stable and reliable. The mahjong machine operates smoothly and quietly, providing a good user experience.

[0053] In other embodiments, the rack can be replaced by a linear slider, and the lifting gear can be replaced by a lifting rocker arm. The lifting rocker arm is movably connected to the linear slider through rollers and grooves. When the linear slider moves, it drives the lifting rocker arm to rotate. The lifting rocker arm, the lifting shaft and the lifting rocker arm rotate synchronously with the lifting rocker arm, thereby driving the lifting tray to rise and fall.

[0054] In this preferred embodiment, the sun gear 510 and the license plate holder 501 are integrally formed, a central shaft is mounted at the center of the sun gear 510, and the turntable 5031 is mounted on top of the central shaft. The license plate push head 505, the license plate push rod 503, and the turntable 5031 are integrally formed. In this way, the structure is simple and reasonable, easy to assemble, and reliable in operation.

[0055] In this preferred embodiment, the planet carrier 509 is provided with a groove for mounting the planet gear 512, and the shaft of the planet gear 512 is fixedly connected to the planet carrier 509 or integrally formed to facilitate assembly.

[0056] In this preferred embodiment, the planetary carrier 509 has external teeth on its outer periphery that mesh with the transmission gear 507 for transmission, and the transmission gear 507 is directly fixed on the output shaft of the upper motor 506.

[0057] In this preferred embodiment, such as Figure 9As shown, the card-lifting gear 603 is installed inside the gearbox 6044, which is fixedly mounted on the card-raising bracket, card-lifting bracket, or integrated base or bottom plate of the shuffling bucket. One end of the rack 604 is slidably disposed inside the gearbox 6044 and meshes with the card-lifting gear 603 for transmission. The other end of the rack 604 is provided with a sliding groove 6041 and a guide rod 6042. The swing end of the rocker arm 511 is provided with a sliding column 5112, which is movably engaged with the sliding groove 6041. The guide rod 6042 is fixedly connected to the rack 604 or integrally formed, and a guide sleeve 6043 is fitted on the guide rod 6042. The guide sleeve 6043 is fixedly mounted on the card-raising bracket, card-lifting bracket, or integrated base or bottom plate of the shuffling bucket. In this way, the rack 604 achieves linear sliding through the gearbox 6044, the guide rod 6042, and the guide sleeve 6043, resulting in stable, reliable, and jam-free movement. Furthermore, the modular design facilitates assembly.

[0058] In this preferred embodiment, such as Figure 8 and Figure 10 As shown, the planetary carrier 509 has an annular cam groove 5091 at its bottom, and a protrusion 5111 is provided on the rocker arm 511. The protrusion 5111 slides in conjunction with the cam groove 5091. The cam groove 5091 includes a first cam groove 50911, a second cam groove 50912, a third cam groove 50913, and a fourth cam groove 50914. When the protrusion 5111 is located in the first cam groove 50911, the tile-lifting plate 601 has descended to its lowest position and remains stationary. At this time, the tile-up pusher will push the mahjong tile wall. The tile-raising plate is pushed onto the mahjong machine tabletop; when the protrusion 5111 is located in the second cam groove 50912, the tile-raising plate 601 rises from the low position to the high position, thus sending all the mahjong tiles of one side onto the mahjong machine tabletop; when the protrusion 5111 is located in the third cam groove 50913, the tile-raising plate 601 rises to the high position and remains stationary, at which time the tile-loading pusher does not push tiles; when the protrusion 5111 is located in the fourth cam groove 50914, the tile-raising plate 601 descends from the high position to the low position, at which time the tile-loading pusher waits to push tiles.

[0059] Further preferably, the rotation angle range of the first cam groove 50911 is 230° to 270°, the rotation angle A range of the second cam groove 50912 is 25° to 50°, the rotation angle B range of the third cam groove 50913 is 20° to 45°, and the rotation angle C range of the fourth cam groove 50914 is 15° to 40°. This ensures a smooth transition between the lifting action of the card-raising tray and the pushing action of the card-dispensing pusher, resulting in a smooth and stable card dispensing process. In this embodiment, preferably, the rotation angle range of the first cam groove 50911 is 257°, ​​the rotation angle range of the second cam groove 50912 is 38°, the rotation angle range of the third cam groove 50913 is 35°, and the rotation angle range of the fourth cam groove 50914 is 30°.

[0060] In this preferred embodiment, such as Figure 11As shown, a magnet 5032 is installed on the turntable 5031, and a sensor 504 for detecting the position of the license plate pusher 505 is also provided on the license plate bracket 501. When the turntable rotates, the sensor 504 senses the rotation position of the turntable and the license plate pusher through the magnet.

[0061] In this preferred embodiment, such as Figure 11 and Figure 12 As shown, the bottom of the turntable 5031 is provided with guide grooves corresponding one-to-one with the guide posts 5121 on the planetary gears 512. The guide grooves include a first guide groove 50311 and a second guide groove 50312. When the guide post 5121 moves within the first guide groove 50311, the planetary gears 512 drive the turntable 5031 and the plate-mounting push rod 503 to rotate via the guide post 5121. When the guide post 5121 moves away from the first guide groove 50311 within the second guide groove 50312, the planetary gears 512 do not drive the turntable 5031 and the plate-mounting push rod 503 to rotate. When the guide post 5121 moves closer to the first guide groove 50311 within the second guide groove 50312, the planetary gears 512 drive the turntable 5031 and the plate-mounting push rod 503 to rotate via the guide post 5121. (For a detailed transmission and engagement diagram, please refer to patent document CN121130404A.) Figures 10 to 1 4). In this way, the rotation and revolution of the guide groove and the planetary gears are coordinated to achieve a smooth connection between the turntable and the plate-raising push rod, which remain stationary while the planetary carrier continues to rotate, driving the plate-raising tray to rise and fall. The structure is simple and reasonable, the action is well connected, the operation is stable and reliable, the noise is low, and the service life of the parts is long.

[0062] Further optimization involves aligning the extension direction of the first guide groove 50311 with the radial direction of the turntable 5031. This results in greater card-pushing force and more reliable and stable operation.

[0063] Further preferably, the rotation angle D of the second guide groove 50312 is in the range of 20° to 40°. This results in better coordination between the card pushing action and the lifting action of the card-raising tray, leading to higher operational efficiency. In this embodiment, the rotation angle D of the second guide groove 50312 is preferably in the range of 30°.

[0064] In this preferred embodiment, the first guide groove 50311 is far from the center of the turntable 5031, and the second guide groove 50312 is close to the center of the turntable 5031.

[0065] In this preferred embodiment, the guide post 5121, the protruding post 5111, and the sliding post 5112 can be any one of rollers, wheels, and bearings.

[0066] In this preferred embodiment, such as Figure 2 and Figure 12As shown, the transmission gear 507 is fixedly connected to or integrally formed with an arc-shaped positioning boss 5071, and the circumference of the turntable 5031 is provided with an arc-shaped positioning groove 5033 that cooperates with the arc-shaped positioning boss 5071. When the planetary gear 512 does not drive the turntable 5031 to rotate, the arc-shaped positioning groove 5033 cooperates with the arc-shaped positioning boss 5071 to ensure that the turntable 5031 stops moving while the transmission gear 507 can continue to rotate. When the arc-shaped positioning groove 5033 is separated from the arc-shaped positioning boss 5071, the planetary gear 512 can drive the turntable 5031 to rotate.

[0067] In the prior art, the guide groove on the turntable and the guide post on the planetary gear are in clearance fit. When the planetary gear 512 does not drive the turntable 5031 and the license plate push rod 503 to rotate, the turntable is not completely locked, and there is a certain range of random movement space. This leads to inaccurate positioning of the license plate push head, which can easily cause the license plate push head to fail to push the license plate into place along the slope or to move the license plate push head excessively, affecting the lifting and lowering of the license plate tray. In this embodiment, when the planetary gear 512 does not drive the turntable 5031 to rotate, the arc-shaped positioning groove 5033 and the arc-shaped positioning boss 5071 cooperate to ensure that the turntable 5031 stops and does not wobble, and the positioning accuracy is high.

[0068] In this preferred embodiment, the arc-shaped positioning boss 5071 is located above the circumferential teeth of the transmission gear 507. The circumferential teeth of the transmission gear 507 mesh with the planetary carrier 509 for transmission. The radius of rotation of the outer arc surface of the arc-shaped positioning boss 5071 is smaller than the radius of rotation of the tooth tip surface of the circumferential teeth of the transmission gear 507. The arc-shaped positioning groove 5033 on the turntable 5031 is an inverse arc shape opposite to the circumference of the turntable 5031, and the arc-shaped positioning groove 5033 is provided on the protruding part of the outer contour of the turntable 5031. In this way, the transmission relationship between the transmission gear and the planetary carrier and the positioning and locking relationship of the transmission gear on the turntable through the arc-shaped positioning boss do not interfere with each other, and the structure is reasonable, convenient for modification of existing technology and low in cost.

[0069] In this embodiment, the card-dispensing process of the ramp card-dispensing device is as follows: The card inlet of the card-raising tray 601 is located below and connects with the card storage slot 500 to form a ramp card-dispensing structure. The transmission gear 507 drives the planetary carrier 509 and the planetary gear 512 to rotate. When the guide post 5121 on the planetary gear 512 moves in the first guide groove 50311 of the turntable 5031, the planetary gear 512 drives the turntable 5031 and the card-dispensing push rod 503 to rotate through the guide post 5121. The card-dispensing push head 505 moves along the card storage slot 500, thereby pushing the mahjong tiles in the card storage slot 500 onto the mahjong machine table along the ramp.

[0070] The transmission gear 507 continues to drive the planet carrier 509 and planet gear 512 to rotate, as... Figure 2As shown, when the card-adding pusher 505 moves to the outlet of the card storage slot 500, the guide post 5121 on the planetary gear 512 moves away from the first guide slot 50311 in the second guide groove 50312 of the turntable 5031. The planetary gear 512 does not drive the turntable 5031 and the card-adding pusher 503 to rotate. The arc-shaped positioning boss 5071 on the transmission gear 507 and the arc-shaped positioning groove 5033 on the turntable 5031 begin to be positioned and engaged in an arc shape. The card-adding pusher 505 stops driving and is locked in position, waiting for the card-raising tray to rise.

[0071] The transmission gear 507 continuously drives the planetary carrier 509 and planetary gear 512 to rotate. The guide post 5121 on the planetary gear 512 continues to move away from the first guide groove 50311 within the second guide groove 50312 of the turntable 5031. The planetary gear 512 does not drive the turntable 5031 and the license plate push rod 503 to rotate. Figure 3 As shown, the arc-shaped positioning boss 5071 on the transmission gear 507 continues to rotate and gradually increases the range of its arc-shaped positioning engagement with the arc-shaped positioning groove 5033 on the turntable 5031 until the two are fully engaged and positioned. The card-loading push head 505 remains in a stopped and locked state, and the card-loading port end of the card-lifting tray 601 begins to rise.

[0072] The transmission gear 507 continuously drives the planetary carrier 509 and planetary gear 512 to rotate. The guide post 5121 on the planetary gear 512 continues to move away from the first guide groove 50311 within the second guide groove 50312 of the turntable 5031. The planetary gear 512 does not drive the turntable 5031 and the license plate push rod 503 to rotate. Figure 4 As shown, the arc-shaped positioning boss 5071 on the transmission gear 507 continues to rotate and the arc-shaped positioning engagement range with the arc-shaped positioning groove 5033 on the turntable 5031 gradually decreases, the card-loading push head 505 remains in a stopped and locked state, and the card-loading port end of the card-lifting tray 601 continues to rise.

[0073] The transmission gear 507 continuously drives the planet carrier 509 and planet gear 512 to rotate. The guide post 5121 on the planet gear 512 approaches and reaches the end of the second guide groove 50312 of the turntable 5031 that is away from the first guide groove 50311. The planet gear 512 does not drive the turntable 5031 and the license plate push rod 503 to rotate. Figure 5 As shown, the arc-shaped positioning boss 5071 on the transmission gear 507 continues to rotate and the arc-shaped positioning engagement range with the arc-shaped positioning groove 5033 on the turntable 5031 continues to decrease, the card-feeding push head 505 remains in a stopped and locked state, and the card-feeding port end of the card-raising tray 601 is raised to the position (flush with the mahjong machine table).

[0074] The transmission gear 507 continuously drives the planetary carrier 509 and planetary gear 512 to rotate. When the guide post 5121 moves towards the end closer to the first guide groove 50311 within the second guide groove 50312, the planetary gear 512 drives the turntable 5031 and the card-adding push rod 503 to rotate via the guide post 5121. The card-adding push head 505 is unlocked and moves out of the card storage slot 500. Figure 6 As shown, the arc-shaped positioning boss 5071 on the transmission gear 507 continues to rotate and separates from the arc-shaped positioning groove 5033 on the turntable 5031 (releasing the positioning engagement relationship). The card-loading pusher 505 moves to below the card inlet end of the card-lifting tray 601, and further moves to outside the card inlet of the card storage slot 500 for the next ramp card loading.

[0075] In this preferred embodiment, such as Figure 12 As shown, the arc angle range F of the arc-shaped positioning boss 5071 on the transmission gear 507 is 55° to 145°, and the arc angle range E of the arc-shaped positioning groove 5033 on the circumference of the turntable 5031 is 10° to 30°. This makes the action time ratio between the rotational drive relationship of the transmission gear on the turntable through the planetary carrier and planetary gears and its intermittent positioning and locking relationship on the turntable more reasonable, resulting in higher card-dispensing efficiency of the ramp card-dispensing device.

[0076] In this embodiment, the arc angle range F of the arc-shaped positioning boss 5071 on the transmission gear 507 is 108°±2°, and the arc angle range E of the arc-shaped positioning groove 5033 on the turntable 5031 is 19°±2°, so as to achieve the most reasonable and optimal time ratio between the card-adding pusher moving and pushing the card and stopping and locking, and to achieve the most efficient card-adding efficiency of the ramp card-adding device.

[0077] In this embodiment, the speed of the motor 506 is 35 r / min; the number of teeth of the transmission gear 507 is 25 and the module is 2; the number of external teeth of the planetary carrier 509 is 75 and the module is 2; the planetary gear 512 and the sun gear 510 have the same structural dimensions, 30 teeth, and a module of 1.5; the number of teeth of the lifting gear 603 is 17 and the module is 1.5; the swing range of the lifting arm 602 is 65° to 98°, with an optimal range of 89.9°; and the linear movement range of the rack 604 is 20 mm.

[0078] In this embodiment, the license plate pusher 503 rotates in one direction, that is, the license plate pusher head 505 rotates cyclically in one direction.

[0079] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0080] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A ramp-type tile-dispensing device for a mahjong machine, comprising a tile-feeding assembly and a tile-lifting assembly. The tile-feeding assembly includes a tile-feeding bracket (501), which has a tile storage slot for storing multiple stacks of mahjong tiles and a tile-feeding pusher (505) for pushing mahjong tiles out of the storage slot. The storage slot is arc-shaped with a bending angle greater than 180°, and the tile-feeding direction at the inlet of the storage slot forms an angle of 45° to 90° with the tile-dispensing direction at the outlet of the storage slot. The tile-feeding pusher (505) is driven by a linkage drive mechanism to rotate unidirectionally and push tiles. The tile-lifting assembly includes a tile-lifting bracket and a tile-lifting tray (601), which has a tile-lifting bracket with a... The device has a card-raising slot, and the card-dispensing end of the card-raising support plate (601) is installed on the card-raising slot. The card-inlet end of the card-raising support plate (601) is movable and driven up and down by a linkage drive mechanism. The linkage drive mechanism includes a card-raising push rod (503), a turntable (5031), a planetary carrier (509), a planetary gear (512), a sun gear (510), a swing rod (511), a linear slider, and a card-raising swing arm (602). The sun gear (510) is fixedly connected to the card-raising support plate (501) or integrally formed. The planetary gear (512) meshes with the sun gear (510) and rotates around the sun gear (510). Planetary gears (512) are rotatably mounted on a planetary carrier (509), which in turn is rotatably mounted on a mounting bracket (501). The planetary carrier (509) meshes with a transmission gear (507), which is driven to rotate by a mounting motor (506). A turntable (5031) is rotatably mounted above the planetary carrier (509). The planetary gears (512) and the turntable (5031) are connected by a guide post (5121) and a guide groove, so that the rotation of the planetary gears (512) can drive the turntable (5031). The rotating mechanism rotates, and the card-raising push rod (503) is fixedly connected to the turntable (5031) or integrally formed; one end of the swing rod (511) is hinged to the card-raising bracket (501), and the other end of the swing rod (511) is movably connected to the linear slider. The planetary carrier (509) and the swing rod (511) are connected by a cam groove (5091) and a convex post to achieve a transmission connection. Thus, the rotation of the planetary carrier (509) can drive the swing rod (511) to swing, and the swing rod (511) pushes the linear slider to move linearly. The linear slider drives the card-raising swing arm (602) to swing, thereby raising and lowering the card-raising tray (601); its characteristic is that, A circular arc-shaped positioning boss (5071) is fixedly connected or integrally formed on the transmission gear (507). A circular arc-shaped positioning groove (5033) that cooperates with the circular arc-shaped positioning boss (5071) is provided on the circumference of the turntable (5031). When the planetary gear (512) does not drive the turntable (5031) to rotate, the circular arc-shaped positioning groove (5033) cooperates with the circular arc-shaped positioning boss (5071) to ensure that the turntable (5031) stops moving while the transmission gear (507) can continue to rotate. When the circular arc-shaped positioning groove (5033) separates from the circular arc-shaped positioning boss (5071), the planetary gear (512) can drive the turntable (5031) to rotate.

2. The inclined card-dispensing device for a mahjong machine according to claim 1, characterized in that, The arc-shaped positioning boss (5071) is located above the circumferential teeth of the transmission gear (507). The circumferential teeth of the transmission gear (507) mesh with the planet carrier (509) for transmission. The outer arc surface of the arc-shaped positioning boss (5071) has a smaller rotation radius than the tooth tip surface of the circumferential teeth of the transmission gear (507). The arc-shaped positioning groove (5033) on the turntable (5031) is an inverse arc shape opposite to the circumference of the turntable (5031). The arc-shaped positioning groove (5033) is set on the protrusion of the outer contour of the turntable (5031).

3. The inclined card-dispensing device for a mahjong machine according to claim 2, characterized in that, The arc angle range F of the arc-shaped positioning boss (5071) on the transmission gear (507) is 55° to 145°, and the arc angle range E of the arc-shaped positioning groove (5033) on the circumference of the turntable (5031) is 10° to 30°.

4. The inclined card-dispensing device for a mahjong machine according to claim 1, characterized in that, The sun gear (510) and the plate holder (501) are integrally formed. Three planet gears (512) mesh with the sun gear (510) and rotate around the sun gear (510). The axis of the planet gear (512) is fixedly connected to the planet carrier (509) or integrally formed. The planet carrier (509) is sleeved on the outside of the sun gear (510) so that it can be rotatably mounted on the plate holder (501). A central shaft is installed at the center of the sun gear (510). The turntable (5031) is installed on the top of the central shaft. The plate push head (505), the plate push rod (503), and the turntable (5031) are integrally formed.

5. The inclined card-dispensing device for a mahjong machine according to claim 1, characterized in that, The planetary carrier (509) has external teeth on its outer periphery that mesh with the transmission gear (507) for transmission. The transmission gear (507) is directly fixed on the output shaft of the motor (506).

6. The inclined card-dispensing device for a mahjong machine according to claim 1, characterized in that, The linear sliding component is a rack (604), which meshes with the card-lifting gear (603) for transmission. The card-lifting gear (603) and the card-lifting swing arm (602) are respectively located at both ends of the card-lifting shaft (605) and all three rotate synchronously. One end of the card-lifting swing arm (602) is fixedly connected to the card-lifting shaft (605) or integrally formed, and the other end of the card-lifting swing arm (602) drives the card-lifting tray (601) to rise and fall. The card-lifting gear (603) is installed in the gearbox (6044), which is fixedly installed on the card-raising bracket, card-lifting bracket, or integrated card-shuffling barrel base or base plate. One end of the rack (604) is slidably disposed in the gearbox (6044) and meshes with the card-lifting gear (603) for transmission. The other end of the rack (604) is provided with a sliding groove (6041) and a guide rod (6042). The swing end of the swing rod (511) is provided with a sliding column (5112). The sliding column (5112) is movably engaged with the sliding groove (6041). The guide rod (6042) is fixedly connected to the rack (604) or integrally formed. A guide sleeve (6043) is sleeved on the guide rod (6042). The guide sleeve (6043) is fixedly installed on the card-raising bracket, the card-lifting bracket, or the integrated base or bottom plate of the card-shuffling bucket.

7. The inclined card-dispensing device for a mahjong machine according to claim 1, characterized in that, The planetary carrier (509) has an annular cam groove (5091) at its bottom, and a protruding post (5111) is provided on the swing arm (511). The protruding post (5111) slides in conjunction with the cam groove (5091). The cam groove (5091) includes a first cam groove (50911), a second cam groove (50912), a third cam groove (50913), and a fourth cam groove (50914). When the protruding post (5111) is located in the first cam groove (50911), the tile-lifting plate (601) has descended to the low position and remains stationary. At this time, the tile-up pusher pushes the mahjong tile wall onto the mahjong machine table along the tile-lifting plate. When the protruding post (5111) is located in the second cam groove (50912), the tile-lifting plate (601) rises from the low position to the high position. All the mahjong tiles from one side are placed on the mahjong machine table. When the protruding column (5111) is located in the third cam groove (50913), the tile-lifting plate (601) rises to the high position and remains stationary. At this time, the tile-push head does not push the tiles. When the protruding column (5111) is located in the fourth cam groove (50914), the tile-lifting plate (601) descends from the high position to the low position. At this time, the tile-push head waits to push the tiles. The first cam groove (50911) has a rotation angle range of 230° to 270°, the second cam groove (50912) has a rotation angle A range of 25° to 50°, the third cam groove (50913) has a rotation angle B range of 20° to 45°, and the fourth cam groove (50914) has a rotation angle C range of 15° to 40°.

8. The inclined card-dispensing device for a mahjong machine according to claim 1, characterized in that, The bottom of the turntable (5031) is provided with guide grooves corresponding one-to-one with the guide posts (5121) on the planetary gears (512). The guide grooves include a first guide groove (50311) and a second guide groove (50312): when the guide post (5121) moves in the first guide groove (50311), the planetary gears (512) drive the turntable (5031) and the plate-mounting push rod (503) to rotate through the guide post (5121); when the guide post (5121) moves away from the first guide groove (50312) in the second guide groove (50312), the planetary gears (512) move away from the first guide post (50311). When one end of the first guide groove (50311) moves, the planetary gear (512) does not drive the turntable (5031) and the card-attaching push rod (503) to rotate; when the guide post (5121) moves towards the end of the first guide groove (50311) in the second guide groove (50312), the planetary gear (512) drives the turntable (5031) and the card-attaching push rod (503) to rotate through the guide post (5121); wherein, the rotation angle D of the second guide groove (50312) is in the range of 20° to 40°.

9. A ramp card-dispensing device for a mahjong machine according to claim 8, characterized in that, The extension direction of the first guide groove (50311) is consistent with the radial direction of the turntable (5031); the first guide groove (50311) is far away from the center of the turntable (5031), and the second guide groove (50312) is close to the center of the turntable (5031).

10. A mahjong machine, characterized in that, The invention includes a ramp card-dispensing device for a mahjong machine as described in any one of claims 1 to 9.

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