Mahjong machine and flat push feeding device thereof

Abstract

The utility model discloses mahjong machine and flat push up card device thereof, wherein mahjong machine's flat push up card device includes: two elevating support, two card feeding rocker arm, card feeding rocker arm and card feeding gear coaxial fixed connection, and the swing end of card feeding rocker arm is connected with elevating support movably, two transmission gear sets, every transmission gear set includes first gear, second gear, third gear, fourth gear, fifth gear and intermediate gear, and the third gear of two transmission gear sets is engaged transmission, and when the tooth section of fifth gear and the tooth section of second gear are engaged transmission, can drive the descending of card supporting plate, and the tooth section of first gear and intermediate gear are matched at this time, and when the tooth section of first gear and intermediate gear are engaged transmission, can drive the ascending of card supporting plate, and the tooth section of fifth gear and second gear are matched at this time. The utility model can guarantee that card supporting plate can keep engaging with transmission gear at any position, makes the mechanism run smoothly, and enhances the reliability.

Description

Technical Field

[0001] This utility model relates to the field of mahjong machine technology, and in particular to a mahjong machine and its flat-push tile-loading device. Background Technology

[0002] Chinese patent document with publication number "CN120132323A" discloses a mahjong machine and its flat-push tile-feeding device. The tile-feeding plate transmission mechanism for driving the tile-feeding plate to rise and fall includes two tile-feeding curved cams, two tile-feeding rocker arms, two tile-feeding rocker arm shafts, two tile-feeding rotating gears, and two first gears. The first gears are incomplete gears, with toothed and toothless portions. The first gears cooperate with the tile-feeding rotating gears for transmission: when the toothed portion of the first gear meshes with the tile-feeding rotating gear, the first gear drives the tile-feeding rotating gear to rotate; when the toothless portion of the first gear meshes with the tile-feeding rotating gear, the tile-feeding rotating gear does not rotate; the two first gears are driven to rotate synchronously by a flat-push tile-feeding motor. However, when the license plate lifting arm lowers the license plate support plate to the lowest position, the teeth of the first gear disengage from the license plate rotating gear. The license plate lifting arm is prone to wobbling and instability when and after disengaging from the first gear. When re-engaging, the gear is prone to misalignment and tooth breakage. Furthermore, repeated engagement and disengagement increase the impact on the gear and reduce its lifespan. In addition, the forward and reverse motors are expensive and costly. When the motor switches between forward and reverse, the rotor inertia causes the bearings to bear bidirectional axial force and radial impact. The torque fluctuation can reach 2-3 times the rated value, which can easily damage the bearing system. The gears are also at risk of tooth root fatigue fracture due to the impact load at the moment of reversal, which reduces their lifespan and generates more noise. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a mahjong machine and its flat-push card-feeding device, wherein the card-feeding plate lifting mechanism drives the card-feeding plate to rise and fall by setting two transmission paths respectively. In this way, the card-feeding gear of the card-feeding rocker arm can maintain engagement with the transmission gear when the card-feeding plate is in any position, so that the mechanism runs smoothly and enhances reliability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A horizontal pushing device for a mahjong machine includes: a tile-loading base, a tile-receiving plate for receiving multiple stacks of mahjong tiles, a tile-supporting plate for simultaneously loading multiple stacks of mahjong tiles onto the table, and a tile-pushing plate for horizontally pushing the multiple stacks of mahjong tiles from the tile-receiving plate onto the tile-supporting plate. The tile-receiving plate forms a tile-storing channel for storing the multiple stacks of mahjong tiles. The tile-supporting plate is located inside the tile-receiving plate and can move up and down. The tile-pushing plate is located outside the tile-receiving plate and pushes tiles from the outside in. The device also includes a tile-supporting plate transmission mechanism for driving the tile-supporting plate to move up and down. The tile-supporting plate lifting mechanism includes:

[0006] Two lifting brackets are installed on the left and right sides of the bottom of the card holder, respectively, and the card holder and the upper card base are slidably connected up and down;

[0007] Two card-loading rocker arms are rotatably mounted on the card-loading base. The card-loading rocker arms are coaxially and fixedly connected to the card-loading gear. The swing end of the card-loading rocker arms is movably connected to the lifting bracket, thereby driving the card-loading plate to rise or fall.

[0008] Two transmission gear sets, each including a first gear, a second gear, a third gear, a fourth gear, a fifth gear, and an intermediate gear; the third gears of the two transmission gear sets mesh with each other for transmission. The first, second, and third gears are driven synchronously by a motor. The second and first gears are incomplete gears, each including a toothed section and a toothless section. The fourth and fifth gears rotate synchronously. The fifth gear includes both a toothed section and a toothless section. The fourth gear meshes with the upper gear for transmission. The intermediate gear meshes with the fourth gear for transmission. The intermediate gear can also mesh with the toothed section of the first gear for transmission.

[0009] When the plate holder descends, the toothed section of the second gear meshes with the toothed section of the fifth gear, the fourth gear rotates synchronously with the fifth gear, and the fourth gear meshes with the plate-mounting gear. At this time, the intermediate gear engages with the toothless section of the first gear. When the plate holder rises, the toothed section of the first gear meshes with the intermediate gear, the intermediate gear meshes with the fourth gear, and the fourth gear meshes with the plate-mounting gear. At this time, the toothless section of the fifth gear engages with the toothless section of the second gear.

[0010] In some embodiments, the first gear, the second gear, and the third gear are coaxially fixedly connected or integrally formed triple gears, and the fourth gear and the fifth gear are coaxially fixedly connected or integrally formed double gears.

[0011] In some embodiments, the toothless section of the fifth gear has a concave locking arc, and the toothless section of the second gear has a convex locking arc that engages with the concave locking arc. When the toothed section of the fifth gear disengages from the toothed section of the second gear, the concave locking arc engages with the convex locking arc to prevent the fifth gear from rotating, and the plate holder remains stationary in a low position. When the concave locking arc disengages from the convex locking arc, the toothed section of the first gear meshes with the intermediate gear, and the intermediate gear drives the fourth gear to rotate, thereby driving the plate holder to rise.

[0012] In some embodiments, the convex locking arc angle of the second gear is 100-130°, the toothed segment angle of the second gear is 80-110°, and the toothed segment angle of the first gear is 50-80°; on the triple gear, the toothed segments of the first gear and the toothed segments of the second gear are arranged opposite each other without overlap, and the convex locking arc is located between the toothed segments of the first gear and the toothed segments of the second gear.

[0013] In some embodiments, the toothed section of the fifth gear is provided with a first extended tooth at the initial position of meshing with the second gear, and the second gear first meshes with the fifth gear by moving the first extended tooth.

[0014] In some embodiments, the intermediate gear is provided with a second extended tooth at the initial position where it meshes with the first gear, and the first gear first meshes with the intermediate gear by moving the second extended tooth.

[0015] In some embodiments, the intermediate gear is further provided with a clearance tooth, the tooth height of which is lower than that of the other teeth. The first gear has a tooth that meshes with the intermediate gear, and after the first tooth of the first gear is offset from the clearance tooth, it meshes with the intermediate gear.

[0016] In some embodiments, a card-pushing plate transmission mechanism is also included for driving the card-pushing plate to move horizontally. When the card-pushing plate transmission mechanism does not drive the card-pushing plate to move, the toothed segment of the fifth gear meshes with the toothed segment of the second gear, or the toothed segment of the intermediate gear meshes with the toothed segment of the first gear, driving the card-up gear to rotate, thereby driving the card-supporting plate to rise or fall. When the card-pushing plate transmission mechanism drives the card-pushing plate to push cards or reset, the toothed segment of the second gear disengages from the toothed segment of the fifth gear, and the toothed segment of the first gear disengages from the intermediate gear. At this time, the card-up gear does not rotate, and the card-supporting plate remains stationary in the low position.

[0017] In some embodiments, the toothless section of the fifth gear has a concave locking arc, and the toothless section of the second gear has a convex locking arc that cooperates with the concave locking arc. The card-pushing plate transmission mechanism includes a flat-push cam and a flat-push swing rod. The flat-push cam is coaxially connected to one of the third gears and rotates synchronously. The upper end of the flat-push swing rod is movably connected to the card-pushing plate, and the lower end of the flat-push swing rod is hinged to the upper card holder. The motor drives the flat-push swing rod to swing back and forth through the flat-push cam, thereby driving the card-pushing plate to move back and forth to push the card. The cam curve of the flat-push cam includes a non-driving segment and a driving segment. In the non-drive phase, the push plate is not driven to move. At this time, the toothed section of the fifth gear meshes with the toothed section of the second gear, or the toothed section of the intermediate gear meshes with the toothed section of the first gear, driving the plate-up gear to rotate, thereby driving the plate-supporting plate to rise or fall. In the drive phase, the push cam drives the push plate to push the plate or reset. At this time, the toothed section of the second gear disengages from the toothed section of the fifth gear, and the toothed section of the first gear disengages from the intermediate gear. The convex locking arc and the concave locking arc are engaged and connected, and the fifth gear is locked and stationary. At this time, the plate-up gear does not rotate, and the plate-supporting plate remains stationary in the low position.

[0018] This utility model also discloses a mahjong machine, including the aforementioned flat-push tile-loading device for a mahjong machine.

[0019] This utility model has the following beneficial effects:

[0020] The flat-push plate-loading device of this application is configured with a first gear, a second gear, and a third gear that are driven by a motor to rotate synchronously, and a fourth gear and a fifth gear that rotate synchronously. By adjusting the meshing transmission relationship between the first to third gears, the fourth and fifth gears, and the intermediate gear, two transmission paths are set up to drive the plate-supporting plate to rise and fall respectively. In this way, the plate-loading gear of the plate-loading rocker arm can maintain meshing with the transmission gears at any position of the plate-supporting plate, thereby ensuring the stability and reliability of the mechanism and avoiding meshing impact and mechanism failure.

[0021] In this invention, the first, second, and third gears are coaxially fixedly connected or integrally formed triple gears, while the fourth and fifth gears are coaxially fixedly connected or integrally formed double gears. When the plate holder rises, the plate-raising rocker arm is driven to rotate via a transmission route of the first gear – intermediate gear – fourth gear – plate-raising gear, making the rise of the plate holder more stable. When the plate holder descends, the plate-raising rocker arm is driven to rotate via a transmission route of the second gear – fifth gear – fourth gear – plate-raising gear, ensuring transmission efficiency during descent. Furthermore, this application uses a common motor with unidirectional rotation, resulting in a simple and low-cost drive control circuit, reducing commutation impact on the motor and gears, extending their service life, and reducing noise.

[0022] In addition, the convex locking arc of the second gear and the concave locking arc of the fifth gear cooperate to ensure that the card-feeding gear stops at the predetermined position and does not move when pushing the card, keeping the two card-feeding rocker arms fixed, enhancing the stability of the mechanism and facilitating gear meshing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the flat-push license plate issuing device of this utility model.

[0024] Figure 2 This is a perspective view of the flat-push license plate issuing device of this utility model.

[0025] Figure 3 This is a schematic diagram of the lifting mechanism for the sign-holding plate in this utility model (the sign-holding plate is at a high position).

[0026] Figure 4 This is a schematic diagram of the structure of the flat-push plate-loading device of this utility model (the plate support plate is at a high position).

[0027] Figure 5 This is a schematic diagram of the lifting mechanism for the sign-holding plate in this utility model (when the sign-holding plate is about to descend).

[0028] Figure 6 This is a perspective view of the flat-push plate-loading device of this utility model (when the plate support is about to descend).

[0029] Figure 7This is a schematic diagram of the lifting mechanism for the sign-holding plate in this utility model (the sign-holding plate is at the lower position).

[0030] Figure 8 This is a perspective view of the flat-push card-loading device of this utility model (the card-supporting plate is at the lower position, and the card-pushing plate transmission mechanism is about to push the card).

[0031] Figure 9 This is a schematic diagram of the card-pushing device of this utility model (the card support plate is at the lower position, and the card-pushing plate transmission mechanism is about to push the card).

[0032] Figure 10 This is a schematic diagram of the card-pushing device of this utility model (when the card-pushing plate transmission mechanism pushes the card). Figure 11 This is a schematic diagram of the card-pushing device of this utility model (when the card-pushing plate transmission mechanism completes the card-pushing and resets).

[0033] Figure 12 This is a perspective view of the card-push device of this utility model (when the card-push plate transmission mechanism pushes the card into place).

[0034] Figure 13 This is a schematic diagram of the lifting mechanism for the signboard in this utility model (when the signboard is about to rise).

[0035] Figure 14 This is a schematic diagram of the card-lifting device of this utility model (when the card support plate is raised to the highest position).

[0036] Figure 15 This is one of the structural diagrams of a triple gear system.

[0037] Figure 16 This is the second schematic diagram of a triple gear system.

[0038] Figure 17 It is a 3D diagram of a triple gear.

[0039] Figure 18 This is a schematic diagram of the structure of the second and third gears in a triple gear system.

[0040] Figure 19 This is a schematic diagram of the connection between the three gears and the motor.

[0041] Figure 20 This is a schematic diagram of the structure of a two-stage gear.

[0042] Figure 21 It is a 3D diagram of a two-stage gear.

[0043] Figure 22 This is a schematic diagram of the intermediate gear.

[0044] Figure 23 It is a 3D diagram of the middle gear.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Lifting bracket; 2. Card holder plate; 21. Guide rod; 3. Card holder; 4. Card holder rocker arm; 5. Card holder gear; 6. Triple gear; 61. First gear; 62. Second gear; 63. Third gear; 64. Convex locking anti-arc; 7. Motor; 8. Double gear; 81. Fourth gear; 82. Fifth gear; 84. First extension tooth; 85. Concave locking anti-arc; 9. Intermediate gear; 91. Second extension tooth; 92. Avoidance tooth; 10. Card receiving plate; 13. Card pusher plate. Detailed Implementation

[0047] The embodiments of this utility model are described in detail below. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of this utility model.

[0048] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be used for fixing, coupling, or communication.

[0049] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 the embodiments of this utility model 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 utility model.

[0050] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] Example 1:

[0052] refer to Figures 1-3The mahjong machine's flat-push tile-loading device of this embodiment includes: a tile-loading base 3, a tile-receiving plate 10 for receiving and arranging multiple stacks of mahjong tiles, a tile-supporting plate 2 for delivering multiple stacks of mahjong tiles onto the table at once, and a tile-pushing plate 13 for pushing the multiple stacks of mahjong tiles on the tile-receiving plate 10 onto the tile-supporting plate. The tile-receiving plate 10 has a tile-storing channel for storing and arranging multiple stacks of mahjong tiles. The tile-supporting plate 2 is located inside the tile-receiving plate 10 and can move up and down. The tile-pushing plate 13 is located outside the tile-receiving plate 10 and pushes tiles from the outside in. The device is characterized by further including a tile-supporting plate transmission mechanism for driving the tile-supporting plate 2 to move up and down. The tile-supporting plate lifting mechanism includes:

[0053] Two lifting brackets 1 are installed on the left and right sides of the bottom of the card support plate 2, respectively, and the card support plate 2 and the upper card holder 3 are slidably connected up and down;

[0054] Two card-loading rocker arms 4 are rotatably mounted on the card-loading base. The card-loading rocker arms 4 are coaxially and fixedly connected to the card-loading gear 5. The swing end of the card-loading rocker arms 4 is movably connected to the lifting bracket 1, thereby driving the card-supporting plate 2 to rise or fall.

[0055] Two transmission gear sets, each including a first gear 61, a second gear 62, a third gear 63, a fourth gear 81, a fifth gear 82, and an intermediate gear 9; the third gear 63 of the two transmission gear sets meshes for transmission; the first gear 61, the second gear 62, and the third gear 63 are driven synchronously by the motor 7; the second gear 62 and the first gear 61 are incomplete gears, each including a toothed section and a toothless section; the fourth gear 81 rotates synchronously with the fifth gear 82; the fifth gear 82 includes a toothed section and a toothless section; the fourth gear 81 meshes for transmission with the upper gear 5; the intermediate gear 9 meshes for transmission with the fourth gear 81; the intermediate gear 9 can also mesh for transmission with the toothed section of the first gear 61.

[0056] When the plate holder descends, the toothed section of the second gear 62 meshes with the toothed section of the fifth gear 82, and the fourth gear 81 rotates synchronously with the fifth gear 82. The fourth gear 81 meshes with the plate-attaching gear 5, and at this time, the intermediate gear 9 engages with the toothless section of the first gear 61. When the plate holder rises, the toothed section of the first gear 61 meshes with the intermediate gear 9, the intermediate gear 9 meshes with the fourth gear 81, and the fourth gear 81 meshes with the plate-attaching gear 5. At this time, the fifth gear 82 engages with the toothless section of the second gear 62. In this embodiment, the intermediate gear 9 can be either an incomplete gear or a complete gear.

[0057] In this application, the plate-holding plate can maintain engagement between the plate-holding gear 5 and the fourth gear 81 of the transmission gear at any position, ensuring good stability and reliability of the flat-push plate-holding device. During the upward movement, the plate-holding rocker arm is driven to rotate through the transmission route of the first gear - intermediate gear - fourth gear - plate-holding gear, making the plate-holding plate rise more smoothly. During the downward movement, the plate-holding rocker arm is driven to rotate through the transmission route of the first gear - second gear - fifth gear - fourth gear - plate-holding gear, ensuring transmission efficiency. In addition, this application uses a common motor with unidirectional rotation, which simplifies the drive control circuit, reduces the commutation impact of the motor and gears, extends the service life of the motor and gears, and reduces noise.

[0058] In this embodiment and some other embodiments, the first gear 61, the second gear 62, and the third gear 63 are coaxially fixedly connected or integrally formed triple gears, and the fourth gear 81 and the fifth gear 82 are coaxially fixedly connected or integrally formed double gears. (Refer to...) Figure 3 , Figure 5 , Figure 7 , Figure 13 and Figures 15-18 In this embodiment, the first gear 61, the second gear 62, and the third gear 63 form a triple gear set 6, wherein the first gear 61 and the second gear 62 are coaxially and fixedly connected, and the third gear 63 is integrally formed with the second gear 62. (Refer to...) Figure 3 , Figure 5 , Figure 7 , Figure 13 and Figures 20-21 In this embodiment, the fourth gear 81 and the fifth gear 82 are integrally formed double gears 8. In this embodiment, the first gear 61, the second gear 62 and the third gear 63 are arranged in sequence. The tip circle diameters of the first gear 61 and the second gear 62 are the same, and the tip circle diameter of the third gear 63 is larger than that of the first gear 61 and the second gear 62.

[0059] refer to Figures 1-2 In this embodiment, the card holder 2 is slidably connected to the upper card holder 3 via the guide rod 21, for reference. Figures 17-19 One of the third gears, 63, is coaxially connected to the motor 7 and rotates synchronously.

[0060] refer to Figure 3 , Figure 20 , Figure 21In this embodiment and some other embodiments, the toothless section of the fifth gear 82 has a concave locking arc 85, and the toothless section of the second gear 62 has a convex locking arc 64 that cooperates with the concave locking arc 85. When the toothed section of the fifth gear 82 disengages from the toothed section of the second gear 62, the concave locking arc 85 and the convex locking arc 64 engage to prevent the fifth gear 82 from rotating, and the plate holder remains stationary in a low position. When the concave locking arc 85 disengages from the convex locking arc 64, the toothed section of the first gear 61 meshes with the intermediate gear 9, and the intermediate gear 9 drives the fourth gear 81 to rotate, thereby driving the plate holder to rise. This embodiment ensures that the gears stop at a predetermined position without wandering by setting matching locking arcs, keeping the two plate-holding rocker arms 4 fixed and enhancing the stability of the mechanism. When the concave locking arc 91 disengages from the convex locking arc 64, the toothed section of the first gear 61 meshes with the intermediate gear 9, ensuring that the two gears mesh at a predetermined position and avoiding gear collisions caused by misalignment during meshing.

[0061] refer to Figure 15 In this embodiment and some other embodiments, the toothed segment angle A of the first gear 61 is 60-90°, and the toothed segment angle B of the second gear 62 is 80-110°. In this embodiment, angle A is 70-75°, and angle B is 90-95°. (See reference...) Figure 18 The angle D of the locking arc 64 of the second gear 62 is 130-150°. In this embodiment, the angle D is 135-140° (reference). Figure 16 On the triple gear set, the toothed segments of the first gear 61 and the second gear 62 are positioned opposite each other without overlap, and the convex locking arc 64 is located between the toothed segments of the first gear 61 and the second gear 62. The angle C between the toothed segments of the first gear 61 and the second gear 62 is 80-110°. In this embodiment, the angle C is 90-95°. (Reference) Figure 20 The toothed segment angle F of the fifth gear 85 is 90–110°, and the locking arc angle E of 85 is 15–35°. In this embodiment, angle F is 100–105°, and angle E is 20–25°. (Reference) Figure 22 In this embodiment and some other embodiments, the angle G of the toothless section of the intermediate gear is 130-150°, and in this embodiment, the angle G is 135-140°.

[0062] refer to Figures 20-21 In this embodiment and some other embodiments, the toothed segment of the fifth gear 82 is provided with a first extended tooth 84 at the initial position of meshing with the second gear 62. The second gear 62 first engages with the fifth gear 82 by moving the first extended tooth 84, enabling the fifth gear 82 to quickly and stably mesh with the second gear 62. (Reference) Figures 22-23The intermediate gear 9 has a second extended tooth 91 at the initial position where it meshes with the first gear 61. The first gear 61 first engages with the intermediate gear 9 by moving the second extended tooth 91, enabling the fifth gear 82 to quickly and stably mesh with the second gear 62. In this embodiment, the first extended tooth 84 and the second extended tooth 91 are thickened, with a tooth thickness greater than other teeth, ensuring the impact resistance of the first extended tooth 84 and the second extended tooth 91, achieving a smoother meshing process, and reducing impact and vibration.

[0063] In this embodiment and some other embodiments, when the last tooth of the toothed segment of the first gear 61 meshes with the intermediate gear 9, the swing end of the license plate rocker arm 4 rises to the highest point to provide support force for the license plate rocker arm 4 at the highest point and maintain the stability of the license plate rocker arm 4 at the highest point.

[0064] refer to Figure 3 In this embodiment and some other embodiments, the tip circle diameter of the third gear 63 is larger than that of the fifth gear 82 and the fourth gear 81, making the system transmission more stable and enhancing reliability.

[0065] refer to Figure 21 The fourth gear 81 is thicker than the other gears to enhance its load-bearing capacity and fatigue resistance.

[0066] In some embodiments, the intermediate gear 9 is further provided with a clearance tooth 92, the tooth height of the clearance tooth 92 is lower than that of other teeth, and the first tooth of the first gear 61, which meshes with the intermediate gear 9, is offset from the clearance tooth 92 and then meshes with the intermediate gear 9.

[0067] refer to Figure 4 , Figures 12-15 and Figure 19 In this embodiment and some other embodiments, a pusher plate transmission mechanism is also included for driving the pusher plate 13 to move horizontally. When the pusher plate transmission mechanism does not drive the pusher plate 13 to move, the fifth gear 82 has a toothed segment meshing with the second gear 62, or the intermediate gear 9 has a toothed segment meshing with the first gear 61, driving the upper gear 5 to rotate, thereby driving the card holder plate to rise or fall. When the pusher plate transmission mechanism drives the pusher plate 13 to push cards or reset, the second gear 62 has a toothed segment disengaging from the fifth gear 82, and the first gear 61 has a toothed segment disengaging from the intermediate gear 9. At this time, the upper gear 5 does not rotate, and the card holder plate remains stationary in the low position. In this embodiment, when the card holder plate is in the low position, the fourth gear 81 remains meshed with the upper gear 5, and can smoothly receive mahjong tiles when the pusher plate transmission mechanism drives the pusher plate 13 to move.

[0068] In this embodiment and some other embodiments, the toothless section of the fifth gear 82 has a concave locking arc 85, and the toothless section of the second gear 62 has a convex locking arc 64 that cooperates with the concave locking arc 85. The card-pushing plate transmission mechanism includes a flat-push cam and a flat-push swing rod. The flat-push cam is coaxially connected to one of the third gears 63 and rotates synchronously. The upper end of the flat-push swing rod is movably connected to the card-pushing plate 13, and the lower end of the flat-push swing rod is hinged to the upper card holder. The motor 7 drives the flat-push swing rod to swing back and forth through the flat-push cam, thereby driving the card-pushing plate 13 to move back and forth to push the card. Here, the structure of the card-pushing plate transmission mechanism disclosed in the patent document with publication number "CN120132323A" can be adopted. The curve includes a non-driving segment and a driving segment. In the non-driving segment, the flat-push cam does not drive the push plate 13. At this time, the toothed segment of the fifth gear 82 meshes with the toothed segment of the second gear 62, or the toothed segment of the intermediate gear 9 meshes with the toothed segment of the first gear 61, driving the upper gear 5 to rotate, thereby driving the card-supporting plate to rise or fall. In the driving segment, the flat-push cam drives the push plate 13 to push cards or reset. At this time, the toothed segment of the second gear 62 disengages from the toothed segment of the fifth gear 82, and the toothed segment of the first gear 61 disengages from the intermediate gear 9. The convex locking arc 64 and the concave locking arc 85 engage, locking the fifth gear 82. At this time, the upper gear 5 does not rotate, and the card-supporting plate remains stationary at a low position. This application, through the gear engagement and locking arc settings, enables the card-supporting plate lifting mechanism and the push plate transmission mechanism to share the same motor drive. Simultaneously, when the push plate transmission mechanism pushes cards, the card-supporting plate can stably receive mahjong tiles at a low position, enhancing the reliability of the device.

[0069] This utility model also discloses a mahjong machine, including the aforementioned mahjong machine's flat-push tile-loading device.

[0070] The specific card-adding method of the flat-push card-adding device of the mahjong machine in this embodiment is as follows:

[0071] refer to Figures 5-6 At this time, the card-holding plate is at a high position. The left triple gear 6 rotates counterclockwise under the drive of the motor 7, and the right triple gear 6 rotates clockwise. The toothed section of the first gear 61 disengages from the middle gear 9, and the toothed section of the second gear 62 just engages the first extension tooth 84 with the toothed section of the fifth gear 82, causing the left card-holding gear 5 to rotate counterclockwise and the right card-holding gear 5 to rotate clockwise. At this time, the middle gears 9 on both sides rotate in opposite directions, driving the card-holding plate to descend. During this stage, the roller at the swing end of the horizontal push rocker arm moves on the non-drive section of the horizontal push cam, and the card-holding plate 13 remains stationary.

[0072] refer to Figures 7-12When the card-holding plate descends to its lowest position, the concave locking arc 85 of the fifth gear 82 engages with the convex locking arc 64 of the second gear 62. The roller at the swing end of the horizontal push rocker arm is at the junction of the non-drive and drive sections of the horizontal push cam. The card-holding plate is ready to push the card. The motor 7 drives the left triple gear 6 to rotate counterclockwise and the right triple gear 6 to rotate clockwise. When the convex locking arc 64 of the second gear 62 rotates, the concave locking arc 85 does not rotate. The swing end of the card-holding rocker arm 4 remains stationary at its lowest position. The roller at the swing end of the horizontal push rocker arm moves on the drive section of the horizontal push cam, moving from the lowest point to the highest point and then continuing to move forward to the lowest point. (Reference) Figures 9-11 During this time period, the pusher plate 13 completes one push and reset, pushing the mahjong tiles on the receiving plate 10 to the supporting plate 2.

[0073] refer to Figure 13 After the card-pushing plate resets, the left triple gear 6 continues to rotate counterclockwise under the drive of the motor 7. The concave locking arc 85 disengages from the convex locking arc 64. At this time, the first gears 61 on both sides engage the first extended teeth 84 with the middle gear 9, causing the left double gear 8 to rotate counterclockwise and the right double gear 8 to rotate clockwise. Consequently, the left card-up gear 5 rotates clockwise and the right card-up gear 5 rotates counterclockwise. The swing ends of the card-up rocker arms 4 on both sides rotate upwards. (Reference) Figure 14 When the swing end of the card-loading rocker arm 4 rotates to the highest position, the last tooth of the first gear 61 meshes with the middle gear 9, and the card-holding plate 2 completes the card loading. During this stage, the roller at the swing end of the horizontal push rocker arm moves on the non-drive section of the horizontal push cam, and the card-pushing plate 13 remains stationary.

[0074] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the concept of the present invention, and all such substitutions or modifications should be considered within the protection scope of the present invention. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the 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 present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations may be made herein without departing from the scope of protection of the patent application.

Claims

1. A tile-loading device for a mahjong machine, comprising: The set includes a tile holder (3), a tile support plate (10) for receiving and arranging multiple mahjong tiles, a tile support plate (2) for placing multiple mahjong tiles onto the table at once, and a tile pusher plate (13) for pushing the multiple mahjong tiles on the tile support plate (10) onto the tile support plate. The tile support plate (10) has a storage channel for storing and arranging multiple mahjong tiles. The tile support plate (2) is located inside the tile support plate (10) and can move up and down. The tile pusher plate (13) is located outside the tile support plate (10) and pushes tiles from the outside in. The set is characterized by further including a tile support plate transmission mechanism for driving the tile support plate (2) to move up and down. The tile support plate lifting mechanism includes: Two lifting brackets (1) are installed on the left and right sides of the bottom of the card holder (2), and the card holder (2) and the upper card holder (3) are slidably connected up and down; Two card-loading rocker arms (4) are mounted on the card-loading seat in a rotatable manner. The card-loading rocker arms (4) are coaxially and fixedly connected to the card-loading gear (5). The swing end of the card-loading rocker arms (4) is movably connected to the lifting bracket (1), thereby driving the card-loading plate (2) to rise or fall. Two transmission gear sets, each including a first gear (61), a second gear (62), a third gear (63), a fourth gear (81), a fifth gear (82), and an intermediate gear (9); the third gear (63) of the two transmission gear sets meshes for transmission, the first gear (61), the second gear (62), and the third gear (63) are driven synchronously by a motor (7), the second gear (62) and the first gear (61) are incomplete gears, including toothed sections and toothless sections respectively; the fourth gear (81) and the fifth gear (82) rotate synchronously, the fifth gear (82) includes toothed sections and toothless sections, the fourth gear (81) meshes for transmission with the upper gear (5), the intermediate gear (9) meshes for transmission with the fourth gear (81), and the intermediate gear (9) can mesh for transmission with the toothed section of the first gear (61); When the plate holder descends, the toothed section of the second gear (62) meshes with the toothed section of the fifth gear (82), the fourth gear (81) rotates synchronously with the fifth gear (82), the fourth gear (81) meshes with the plate-mounting gear (5), and at this time the intermediate gear (9) engages with the toothless section of the first gear (61); when the plate holder rises, the toothed section of the first gear (61) meshes with the intermediate gear (9), the intermediate gear (9) meshes with the fourth gear (81), the fourth gear (81) meshes with the plate-mounting gear (5), and at this time the fifth gear (82) engages with the toothless section of the second gear (62).

2. The flat-push tile-loading device for a mahjong machine as described in claim 1, characterized in that, The first gear (61), the second gear (62) and the third gear (63) are three gears that are coaxially fixedly connected or integrally formed, and the fourth gear (81) and the fifth gear (82) are two gears that are coaxially fixedly connected or integrally formed.

3. The flat-push tile-loading device for a mahjong machine as described in claim 2, characterized in that, The toothless section of the fifth gear (82) has a concave locking arc (85), and the toothless section of the second gear (62) has a convex locking arc (64) that engages with the concave locking arc (85). When the toothed section of the fifth gear (82) disengages from the toothed section of the second gear (62), the concave locking arc (85) engages with the convex locking arc (64) to prevent the fifth gear (82) from rotating, and the plate holder remains stationary in the low position. When the concave locking arc (85) disengages from the convex locking arc (64), the toothed section of the first gear (61) meshes with the intermediate gear (9) for transmission, and the intermediate gear (9) drives the fourth gear (81) to rotate, thereby driving the plate holder to rise.

4. The flat-push tile-loading device for a mahjong machine as described in claim 3, characterized in that, The angle of the convex locking arc (64) of the second gear (62) is 130~150°, the angle of the toothed section of the second gear (62) is 80~110°, and the angle of the toothed section of the first gear (61) is 60~90°. On the triple gear, the toothed section of the first gear (61) and the toothed section of the second gear (62) are arranged opposite each other without overlapping, and the convex locking arc (64) is located between the toothed section of the first gear (61) and the toothed section of the second gear (62).

5. The flat-push tile-loading device for a mahjong machine as described in claim 2, characterized in that, The toothed section of the fifth gear (82) is provided with a first extended tooth (84) at the initial position of meshing with the second gear (62). The second gear (62) first meshes with the fifth gear (82) by moving the first extended tooth (84).

6. The flat-push tile-loading device for a mahjong machine as described in claim 2, characterized in that, The intermediate gear (9) is provided with a second extended tooth (91) at the initial position of meshing with the first gear (61). The first gear (61) first meshes with the intermediate gear (9) by moving the second extended tooth (91).

7. The flat-push tile-loading device for a mahjong machine as described in claim 2, characterized in that, The intermediate gear (9) is also provided with a clearance tooth (92). The tooth height of the clearance tooth (92) is lower than that of the other teeth. The first tooth of the first gear (61) that meshes with the intermediate gear (9) is offset from the clearance tooth (92) and then meshes with the intermediate gear (9).

8. The flat-push tile-loading device for a mahjong machine as described in claim 2, characterized in that, It also includes a push plate transmission mechanism for driving the push plate (13) to push horizontally. When the push plate transmission mechanism does not drive the push plate (13) to move, the toothed section of the fifth gear (82) meshes with the toothed section of the second gear (62), or the toothed section of the intermediate gear (9) meshes with the toothed section of the first gear (61), driving the upper plate gear (5) to rotate, thereby driving the plate to rise or fall. When the push plate transmission mechanism drives the push plate (13) to push or reset, the toothed section of the second gear (62) disengages from the toothed section of the fifth gear (82), and the toothed section of the first gear (61) disengages from the intermediate gear (9). At this time, the upper plate gear (5) does not rotate, and the plate remains stationary in the low position.

9. The flat-push tile-loading device for a mahjong machine as described in claim 8, characterized in that, The toothless section of the fifth gear (82) has a concave locking arc (85), and the toothless section of the second gear (62) has a convex locking arc (64) that cooperates with the concave locking arc (85). The card-pushing plate transmission mechanism includes a flat-push cam and a flat-push swing rod. The flat-push cam is coaxially connected to one of the third gears (63) and rotates synchronously. The upper end of the flat-push swing rod is movably connected to the card-pushing plate (13), and the lower end of the flat-push swing rod is hinged to the upper card holder. The motor (7) drives the flat-push swing rod to swing back and forth through the flat-push cam, thereby driving the card-pushing plate (13) to move back and forth to push the card. The cam curve of the flat-push cam includes a non-driving section and a driving section. The flat-push cam does not drive the card-pushing plate (13) when it is in the non-driving section. During the movement, the fifth gear (82) meshes with the second gear (62) or the intermediate gear (9) meshes with the first gear (61), driving the upper gear (5) to rotate, thereby driving the card holder plate to rise or fall; when the flat push cam is in the driving section, it drives the push plate (13) to push the card or reset. At this time, the second gear (62) disengages from the fifth gear (82), the first gear (61) disengages from the intermediate gear (9), the convex locking arc (64) and the concave locking arc (85) are connected, the fifth gear (82) is locked and does not move. At this time, the upper gear (5) does not rotate, and the card holder plate remains stationary in the low position.

10. A mahjong machine, characterized in that, Includes a flat-push tile-loading device for a mahjong machine as described in any one of claims 1-9.

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