Mahjong machine and flat pushing card feeding device thereof

Abstract

The utility model discloses mahjong machine and flat push up card device thereof, wherein the flat push up card device of mahjong machine includes: two elevating supports, two card feeding rocker arms, two transmission gear sets, every transmission gear set includes first gear, second gear, third gear, fourth gear, fifth gear and intermediate gear, when the tooth section of fifth gear and the tooth section of second gear mesh transmission, the tooth section of first gear and the tooth section of intermediate gear disengage, the rotation direction of card feeding gear is same with the third gear of same side, can drive the ascending of card supporting plate, when the tooth section of first gear and the tooth section of intermediate gear mesh transmission, the tooth section of fifth gear and the tooth section of second gear disengage, the rotation direction of card feeding gear is opposite with the third gear of same side, can drive the descending of card supporting plate. The utility model can guarantee that card supporting plate is at any position, and card feeding gear can keep with transmission gear meshing, makes the stable operation of mechanism, and enhances 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 loading mahjong tiles 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 is characterized by further including 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 a toothed section and a toothless section. The fourth gear meshes with the upper gear for transmission. The intermediate gear includes a toothed section and a toothless section. The toothed section of the intermediate gear meshes with the fourth gear for transmission. The toothed section of the intermediate gear can also mesh with the toothed section of the first gear for transmission.

[0009] When the toothed segment of the fifth gear meshes with the toothed segment of the second gear, the toothed segment of the first gear disengages from the toothed segment of the middle gear. At this time, the rotation direction of the plate-mounting gear is the same as that of the third gear on the same side, which can drive the plate-mounting plate to rise. When the toothed segment of the first gear meshes with the toothed segment of the middle gear, the toothed segment of the fifth gear disengages from the toothed segment of the second gear. At this time, the rotation direction of the plate-mounting gear is opposite to that of the third gear on the same side, which can drive the plate-mounting plate to descend.

[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 intermediate gear has a concave locking arc, and the toothless section of the first gear has a convex locking arc that cooperates with the concave locking arc. When the toothed section of the intermediate gear disengages from the toothed section of the first gear, the concave locking arc and the convex locking arc cooperate to prevent the intermediate gear from rotating. At this time, the card-holding gear does not rotate, and the card-holding plate remains stationary in a low position. When the concave locking arc disengages from the convex locking arc, the toothed section of the fifth gear meshes with the toothed section of the second gear, and the intermediate gear rotates in the opposite direction, which can drive the card-holding plate to rise. When the toothed section of the fifth gear disengages from the toothed section of the second gear, the toothed section of the first gear meshes with the toothed section of the intermediate gear, which can drive the card-holding plate to descend.

[0012] In some embodiments, the convex locking arc angle of the first gear is 100~130°, the toothed segment angle of the first gear is 80~110°, and the toothed segment angle of the second gear is 80~110°; 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 fifth gear is provided with an extension tooth at the initial position where it meshes with the second gear, and the second gear first meshes with the fifth gear by moving the extension tooth.

[0014] In some embodiments, when the last tooth of the fifth gear meshes with the second gear, the swing end of the license plate rocker arm rises to its highest point.

[0015] In some embodiments, the toothed section of the first gear is provided with a first clearance tooth, and the toothed section of the intermediate gear is provided with a second clearance tooth and a third clearance tooth. The width of the first clearance tooth and the second clearance tooth is lower than that of the other teeth, and at least a portion of the tooth height of the third clearance tooth is lower than that of the other teeth. When the swing end of the license plate rocker arm rotates in the opposite direction at the high point, the first clearance tooth is offset from the third clearance tooth and the second clearance tooth before meshing with the intermediate gear for transmission.

[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 toothed segment of 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 intermediate gear of the card-holding plate lifting mechanism has a concave locking arc, and the toothless section of the first 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 upper plate gear to rotate, thereby driving the 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 toothed section of the intermediate gear. The convex locking arc and the concave locking arc are engaged and connected, and the intermediate gear is locked and does not move. At this time, the upper plate gear does not rotate, and the plate remains stationary in the low position.

[0018] This utility model also provides a mahjong machine, including the above-mentioned 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 through the transmission route of the second gear - fifth gear - fourth gear - plate-raising gear, ensuring transmission efficiency. When the plate holder descends, the plate-raising rocker arm is driven to rotate through the transmission route of the first gear - intermediate gear - fourth gear - plate-raising gear, making the descent of the plate holder more stable. 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.

[0022] In addition, the concave locking arc of the intermediate gear and the convex locking arc of the first 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 card-carrying device of this utility model, which pushes the card onto the plate when it is at a high position.

[0024] Figure 2 yes Figure 1 A three-dimensional diagram of the flat-push sign-on device.

[0025] Figure 3 yes Figure 1 A schematic diagram of the lifting mechanism for the signboard.

[0026] Figure 4 yes Figure 1 A schematic diagram of the card-pushing device in the middle.

[0027] Figure 5 This is a schematic diagram of the vehicle registration device of this utility model, which pushes the vehicle registration plate horizontally when the registration gear is about to reverse.

[0028] Figure 6 yes Figure 5 A three-dimensional diagram of the flat-push sign-on device.

[0029] Figure 7 yes Figure 5 A schematic diagram of the lifting mechanism for the signboard.

[0030] Figure 8 This is a schematic diagram of the structure of the plate-holding device of this utility model, which pushes the plate onto the plate when it is stationary at a low position.

[0031] Figure 9 yes Figure 8 A schematic diagram of the flat-push plate-addressing device.

[0032] Figure 10 yes Figure 8 A three-dimensional diagram of the flat-push sign-on device.

[0033] Figure 11 yes Figure 8 A schematic diagram of the lifting mechanism for the signboard.

[0034] Figure 12 yes Figure 8 A schematic diagram of the card-pushing device when the card holder is stationary at a low position.

[0035] Figure 13 This is a schematic diagram of the card-pushing device of the card-pushing plate transmission mechanism of this utility model.

[0036] Figure 14 This is a schematic diagram of the card-pushing device of the card-pushing plate transmission mechanism of this utility model when the card is pushed into place.

[0037] Figure 15 This is a schematic diagram of the structure of the card-carrying device of this utility model, which pushes the card onto the plate when it is about to rise from a low position.

[0038] Figure 16 yes Figure 15 A schematic diagram of the flat-push plate-addressing device.

[0039] Figure 17 yes Figure 15 A three-dimensional diagram of the flat-push sign-on device.

[0040] Figure 18 yes Figure 15 A schematic diagram of the lifting mechanism for the signboard.

[0041] Figure 19 This is a schematic diagram of the card-pushing device of the present invention, which pushes the card-loading device when the card-holding plate is raised to a high position.

[0042] Figure 20 This is one of the structural diagrams of a triple gear system.

[0043] Figure 21 yes Figure 20 A three-dimensional diagram of the three-linked gears.

[0044] Figure 22 yes Figure 20 The structural diagram of the second and third gears in the diagram.

[0045] Figure 23 This is a schematic diagram of the connection between the three gears and the motor.

[0046] Figure 24 It is a 3D diagram of a double gear.

[0047] Figure 25 Yes, it's a 3D view of the middle gear.

[0048] Figure 26 Figure 25 A schematic diagram of the intermediate gear in the diagram.

[0049] Figure 27 This is a schematic diagram of the meshing structure of the triple gear and the intermediate gear.

[0050] Figure 28 This is the second schematic diagram of a triple gear system.

[0051] Explanation of reference numerals in the attached figures:

[0052] 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; 611. First clearance gear; 62. Second gear; 63. Third gear; 64. Convex locking anti-arc; 7. Motor; 8. Double gear; 81. Fourth gear; 82. Fifth gear; 83. Extension gear; 9. Intermediate gear; 91. Concave locking anti-arc; 92. Second clearance gear; 93. Third clearance gear; 13. Card pusher plate. Detailed Implementation

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] Example 1

[0058] 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 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 from the tile-receiving plate to the tile-supporting plate. The tile-receiving plate forms 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 and can move up and down. The tile-pushing plate 13 is located outside the tile-receiving plate 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:

[0059] Two lifting brackets 1 are installed on the left and right sides of the bottom section 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;

[0060] 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.

[0061] 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, 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 with the upper gear 5 for transmission; the intermediate gear 9 includes a toothed section and a toothless section; the toothed section of the intermediate gear 9 meshes with the fourth gear 81 for transmission; the toothed section of the intermediate gear 9 can also mesh with the toothed section of the first gear 61 for transmission.

[0062] When the toothed segment of the fifth gear 82 meshes with the toothed segment of the second gear 62, the toothed segment of the first gear 61 disengages from the toothed segment of the intermediate gear 9. At this time, the rotation direction of the plate-mounting gear 5 is the same as that of the third gear 63 on the same side, which can drive the plate-mounting plate to rise. When the toothed segment of the first gear 61 meshes with the toothed segment of the intermediate gear 9, the toothed segment of the fifth gear 82 disengages from the toothed segment of the second gear 62. At this time, the rotation direction of the plate-mounting gear 5 is opposite to that of the third gear 63 on the same side, which can drive the plate-mounting plate to descend.

[0063] In this application, the plate-holding plate can maintain engagement between the plate-holding gear 5 and the transmission gear (fourth gear 81) 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 second gear - fifth gear - fourth gear - plate-holding gear, ensuring transmission efficiency and load capacity. During the downward 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 descent smoother. In addition, the motor in this application is a common unidirectional rotating motor, with a simple drive control circuit and low cost. The motor and the first to third gears driven by the motor run in the same direction during the upward and downward movement of the plate-holding plate, reducing the reversing impact of the motor and gears, extending the service life of the motor and gears, and reducing noise.

[0064] refer to Figure 3 , Figure 11 , Figure 18 and Figures 20-23 In this embodiment, the first gear 61, the second gear 62, and the third gear 63 are coaxially fixedly connected or integrally formed as a triple gear 6, as shown in the reference. Figure 3 , Figure 11 , Figure 18 and Figure 24 In this embodiment, the fourth gear 81 and the fifth gear 82 are coaxially fixedly connected or 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.

[0065] refer to Figure 2 In this embodiment, the card holder 2 is slidably connected to the upper card holder 3 via the guide rod 21, for reference. Figure 7 and Figure 23 One of the third gears, 63, is coaxially connected to the motor 7 and rotates synchronously.

[0066] refer to Figure 11 , Figure 20 , Figure 21 and Figure 26In this embodiment and some other embodiments, the toothless section of the intermediate gear 9 has a concave locking arc 91, and the toothless section of the first gear 61 has a convex locking arc 64 that cooperates with the concave locking arc 91. When the toothed section of the intermediate gear 9 disengages from the toothed section of the first gear 61, the concave locking arc 91 and the convex locking arc 64 cooperate to prevent the intermediate gear 9 from rotating. At this time, the card-holding gear 5 does not rotate, and the card-holding plate remains stationary in a low position. When the concave locking arc 91 disengages from the convex locking arc 64, the toothed section of the fifth gear 82 meshes with the toothed section of the second gear 62, and the intermediate gear 9 rotates in the opposite direction, which can drive the card-holding plate to rise. When the toothed section of the fifth gear 82 disengages from the toothed section of the second gear 62, the toothed section of the first gear 61 meshes with the toothed section of the intermediate gear 9, which can drive the card-holding plate to descend. This embodiment ensures that the gears remain stationary at a predetermined position without moving by setting a matching locking arc, keeping the two mounting 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 fifth gear 82 meshes with the toothed section of the second gear 62, ensuring that the two gears mesh at the predetermined position and avoiding gear collisions caused by misalignment during meshing.

[0067] refer to Figure 20 In this embodiment and some other embodiments, the angle A of the convex locking arc 64 of the first gear 61 is 100~130°, the angle B of the toothed section of the first gear 61 is 80~110°, and the sum of angles A, B, and angle C at the non-locking arc of the toothless section is 360°. In this embodiment, angle A is 110~115°, and angle B is 90~95°. (Reference) Figure 22 The toothed segment angle D of the second gear 62 is 80~110°. In this embodiment, the angle D is 90~95° (reference). Figure 28 In the triple gear system, 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. In this embodiment, the angle F between the toothed segments of the first gear 61 and the second gear 62 is 70~100°. In this embodiment, the angle F is 75~80°. (Reference) Figure 26 In this embodiment and some other embodiments, the angle of the toothed segment of the intermediate gear is 170~190°, and in this embodiment it is 180°.

[0068] refer to Figure 24 In this embodiment and some other embodiments, the fifth gear 82 is provided with an extension tooth 83 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 extension tooth 83, so that the fifth gear 82 can quickly and stably mesh with the second gear 62. In this embodiment, the extension tooth 83 is thickened, and the tooth thickness of the extension tooth 83 is larger than that of other teeth, to ensure the impact resistance of the extension tooth 83, to achieve a smoother meshing process, and to reduce impact and vibration.

[0069] refer to Figure 3 In this embodiment and some other embodiments, when the last tooth of the fifth gear 82 meshes with the second gear 62, 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.

[0070] 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.

[0071] refer to Figure 25 In this embodiment and some other embodiments, the toothed section of the first gear 61 is provided with a first clearance tooth 611, and the toothed section of the intermediate gear 9 is provided with a second clearance tooth 92 and a third clearance tooth 93. The width of the first clearance tooth 611 and the second clearance tooth 92 is lower than that of the other teeth, and at least a portion of the tooth height of the third clearance tooth 93 is lower than that of the other teeth. When the swing end of the upper rocker arm 4 rotates in the opposite direction at the high point, the first clearance tooth 611 is offset from the third clearance tooth 93 and the second clearance tooth 92 before meshing with the intermediate gear 9 for transmission. The clearance tooth increases the rotation range of the gear and provides a buffer for the reversal of the intermediate gear, so that the two gears can mesh smoothly, greatly reducing the tooth collision during meshing, enhancing the stability of the mechanism, and extending the gear life.

[0072] refer to Figure 24 The fourth gear 81 is thicker than the other gears to enhance its load-bearing capacity and fatigue resistance.

[0073] 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 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 holder plate to rise or fall. When the pusher plate transmission mechanism drives the pusher plate 13 to push cards or reset, 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 toothed segment of 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.

[0074] In this embodiment and some other embodiments, the toothless section of the intermediate gear 9 of the card-holding plate lifting mechanism has a concave locking arc 91, and the toothless section of the first gear 61 has a convex locking arc 64 that cooperates with the concave locking arc 91. 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 cam 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 support 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 toothed segment of the intermediate gear 9. The convex locking arc 64 and the concave locking arc 91 engage, locking the intermediate gear 9 in place. At this time, the upper gear 5 does not rotate, and the card support plate remains stationary at a low position. This application, through the gear engagement and locking arc settings, enables the card support 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 support plate can stably receive mahjong tiles at a low position, enhancing the reliability of the device.

[0075] This utility model also discloses a mahjong machine, including the aforementioned mahjong machine's flat-push tile-loading device.

[0076] The specific card-adding method of the flat-push card-adding device of the mahjong machine in this embodiment is as follows:

[0077] refer to Figures 1-4 At this time, the card-holding plate is at its highest point, and the two third gears 63 on the left and right are meshed and connected. The left triple gear 6 rotates clockwise under the drive of the motor 7, the right triple gear 6 rotates counterclockwise, the left double gear 8 rotates counterclockwise, and the right double gear 8 rotates clockwise, which drives the left card-holding gear 5 to rotate clockwise and the right card-holding gear 5 to rotate counterclockwise. 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.

[0078] refer to Figures 5-7 , Figure 27After the swing ends of the left and right card-mounting rocker arms 4 rotate about 10°, the toothed section of the fifth gear 82 disengages from the toothed section of the second gear 62. The first clearance tooth 611 of the toothed section of the first gear 61 successively avoids the third clearance tooth 93 and the second clearance tooth 92 and then meshes with the middle gear 9. The left middle gear 9 rotates counterclockwise, driving the left double gear 8 to rotate clockwise, which in turn drives the left card-mounting gear 5 to rotate counterclockwise. The right middle gear 9 rotates clockwise, driving the right double gear 8 to rotate counterclockwise, which in turn drives the right card-mounting gear 5 to rotate clockwise. The swing end of the left card-mounting rocker arm 4 rotates counterclockwise, and the card-holding plate rises slightly and then falls. 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.

[0079] refer to Figures 8-14 When the card-carrying plate descends to its lowest position, the concave locking arc 91 of the intermediate gear 9 engages with the convex locking arc 64 of the first gear 61. 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-carrying plate is ready to push the card. The motor 7 drives the left triple gear 6 to rotate clockwise and the right triple gear 6 to rotate counterclockwise. The convex locking arc 64 of the first gear 61 rotates. The toothed sections of the fifth gears 82 on both sides correspond to the toothless sections of the second gear 62. The fourth gear 81 meshes with the toothed section of the intermediate gear 9. Therefore, the intermediate gear 9 and the double gear 8 do not rotate. The swing end of the card-carrying 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 12-14 During this time period, the pusher plate 13 completes one push and reset, pushing the mahjong tiles on the receiving plate to the support plate 2.

[0080] refer to Figures 15-19 After the push plate resets, the left triple gear 6 continues to rotate clockwise under the drive of the motor 7. The concave locking arc 91 disengages from the convex locking arc 64. At this time, the second gear 62 on both sides engages with the extended tooth 83 and the fifth gear 82. The left double gear 8 rotates counterclockwise, and the right double gear 8 rotates clockwise. Consequently, the left card-up gear 5 rotates clockwise, and the right card-up gear 5 rotates counterclockwise. The left middle gear 9 rotates clockwise, and the right middle gear 9 rotates counterclockwise. The swing ends of the card-up rocker arms 4 on both sides rotate upwards to their highest point. (Reference) Figure 3 At this time, the last tooth of the fifth gear 82 meshes with the second gear 62, and the card holder 2 completes the card placement. 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, while the card pusher 13 remains stationary.

[0081] 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 comprises a tile holder (3), a tile-holding plate 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 from the tile holder to the tile-supporting plate. The tile holder forms a storage channel for storing and arranging multiple stacks of mahjong tiles. The tile-supporting plate (2) is located inside the tile holder and can move up and down. The tile-pushing plate (13) is located outside the tile holder and pushes tiles from the outside in. The set 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: 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 transmission gear set 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 and drives, 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, respectively including toothed sections and toothless sections; 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 and drives with the upper gear (5), the intermediate gear (9) includes toothed sections and toothless sections, the toothed section of the intermediate gear (9) meshes and drives with the fourth gear (81), the toothed section of the intermediate gear (9) can mesh and drive with the toothed section of the first gear (61); When the toothed segment of the fifth gear (82) meshes with the toothed segment of the second gear (62), the toothed segment of the first gear (61) disengages from the toothed segment of the intermediate gear (9). At this time, the rotation direction of the upper plate gear (5) is the same as that of the third gear (63) on the same side, which can drive the plate holder to rise. When the toothed segment of the first gear (61) meshes with the toothed segment of the intermediate gear (9), the toothed segment of the fifth gear (82) disengages from the toothed segment of the second gear (62). At this time, the rotation direction of the upper plate gear (5) is opposite to that of the third gear (63) on the same side, which can drive the plate holder to fall.

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 intermediate gear (9) has a concave locking arc (91), and the toothless section of the first gear (61) has a convex locking arc (64) that engages with the concave locking arc (91). When the toothed section of the intermediate gear (9) disengages from the toothed section of the first gear (61), the concave locking arc (91) engages with the convex locking arc (64) to prevent the intermediate gear (9) from rotating. At this time, the card-holding gear (5) does not rotate, and the card-holding plate remains stationary in the low position. When the concave locking arc (91) disengages from the convex locking arc (64), the toothed section of the fifth gear (82) meshes with the toothed section of the second gear (62), and the intermediate gear (9) rotates in the opposite direction, which can drive the card-holding plate to rise. When the toothed section of the fifth gear (82) disengages from the toothed section of the second gear (62), the toothed section of the first gear (61) meshes with the toothed section of the intermediate gear (9), which can drive the card-holding plate to descend.

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 first gear (61) is 100~130°, the angle of the toothed section of the first gear (61) is 80~110°, and the angle of the toothed section of the second gear (62) is 80~110°; on the triple gear, the toothed sections of the first gear (61) and the toothed sections of the second gear (62) are arranged opposite each other without overlap, and the convex locking arc (64) is located between the toothed sections of the first gear (61) and the toothed sections 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 fifth gear (82) has an extension tooth (83) 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 extension tooth (83).

6. The flat-push tile-loading device for a mahjong machine as described in claim 2, characterized in that, When the last tooth of the fifth gear (82) meshes with the second gear (62), the swing end of the upper plate rocker arm (4) rises to its highest point.

7. The flat-push tile-loading device for a mahjong machine as described in claim 2, characterized in that, The toothed section of the first gear (61) is provided with a first clearance tooth (611), and the toothed section of the intermediate gear (9) is provided with a second clearance tooth (92) and a third clearance tooth (93). The width of the first clearance tooth (611) and the second clearance tooth (92) is lower than that of the other teeth. At least part of the tooth height of the third clearance tooth (93) is lower than that of the other teeth. When the swing end of the upper plate rocker arm (4) rotates in the opposite direction at the high point, the first clearance tooth (611) is offset from the third clearance tooth (93) and the second clearance tooth (92) before meshing with the intermediate gear (9) for transmission.

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 toothed section of 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 intermediate gear (9) of the card-carrying plate lifting mechanism has a concave locking arc (91), and the toothless section of the first gear (61) has a convex locking arc (64) that cooperates with the concave locking arc (91). 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) in the non-driving section. When the fifth gear (82) is in motion, the toothed segment of the fifth gear (82) meshes with the toothed segment of the second gear (62), or the toothed segment of the middle gear (9) meshes with the toothed segment of 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 toothed segment of the second gear (62) disengages from the toothed segment of the fifth gear (82), the toothed segment of the first gear (61) disengages from the toothed segment of the middle gear (9), the convex locking arc (64) and the concave locking arc (91) are connected, the middle gear (9) 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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