Linkage mahjong pushing and lifting mechanism of mahjong machine

Abstract

The utility model relates to the technical field of mahjong machines, in particular to a linkage mahjong pushing and lifting mechanism of a mahjong machine. In order to achieve the purpose, the linkage tile pushing and lifting mechanism of the mahjong machine comprises a machine base, a tile storage channel arranged on the machine base and used for containing mahjong tiles, a tile pushing rod used for pushing the mahjong tiles in the tile storage channel and a tile lifting plate used for lifting the mahjong tiles in the tile storage channel to a table top. The machine base is provided with a fluted disc, the fluted disc is eccentrically and rotatably connected with a swing rod, the swing rod drives a tile pushing rod to rotate, and the tile pushing rod is provided with a time delay groove, so that the tile pushing rod does not rotate when the swing rod moves along the time delay groove; a linkage groove is formed in the fluted disc, and a linkage mechanism is connected to the linkage groove and used for driving the tile lifting plate to ascend and descend.

Description

Technical Field

[0001] This utility model relates to the technical field of mahjong machines, and in particular to a linked tile pushing and lifting mechanism for mahjong machines. Background Technology

[0002] The process of a rotating tile-lifting mahjong machine raising the mahjong tiles to the table involves first stacking the tiles vertically in pairs within the tile slots, then pushing them onto the table via a pusher rod. While the pusher rod is pushing the tiles, the lifting plate is tilted to facilitate the tiles' entry onto the table. After the tiles reach the table, the lifting plate rotates to maintain alignment with the table surface. However, currently, the lifting plate and the pusher rod are controlled by separate motors, and having too many motors increases the complexity of control.

[0003] Chinese invention patent CN111450519A, published on April 28, 2020, discloses an integrated linkage tile-lifting mechanism for a mahjong machine. The mechanism includes a tile-pushing component, a tile-lifting component, and a driving component. The tile-pushing component includes a tile-pushing groove and a tile-pushing assembly. The tile-lifting component includes a tile-lifting plate and a tile-lifting assembly. The annular tile-pushing groove includes a tile inlet and a tile outlet. The tile-lifting plate, with one end connected to the tile outlet, extends to the tabletop. The driving component includes a gear system and a driving element. The gear system includes a driving gear, a driven gear system, and an incomplete gear with a notch. Both the driven gear system and the incomplete gear mesh with the driving gear. When the notch of the incomplete gear, which drives the tile-pushing assembly, meshes with the driving gear, the tile-lifting assembly, driven by the driven gear system, pushes the tile-lifting plate to move until it is flush with the tabletop. This patent achieves the switching between different states of the tile-pushing and tile-lifting rods through the incomplete gear. However, over time, the gears may not mesh properly, leading to interference, abnormal noise, or even jamming.

[0004] Therefore, it is necessary to propose a method that does not use incomplete gears to switch between the different states of the push bar and the lift bar. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a linked push and lift mechanism for a mahjong machine. It aims to solve the technical problems of long switching time and easy interference in the prior art when using incomplete gears to switch between different states of the push and lift levers.

[0006] To achieve the above objectives, this utility model proposes a linked tile pushing and lifting mechanism for a mahjong machine, including a base, a tile storage channel for holding mahjong tiles mounted on the base, a tile pushing rod for pushing the mahjong tiles in the storage channel, and a tile lifting plate for raising the mahjong tiles in the storage channel to the tabletop; the base is provided with a toothed disc, and a swing rod is eccentrically and rotatably connected to the toothed disc, the swing rod drives the tile pushing rod to rotate, and the tile pushing rod is provided with a delay groove so that the tile pushing rod does not rotate when the swing rod moves along the delay groove; the toothed disc is provided with a linkage groove, and a linkage mechanism is connected to the linkage groove for driving the lifting plate to rise and fall.

[0007] Preferably, the linkage mechanism includes a linkage shaft that moves along the linkage groove, a V-shaped rod, a rack disposed on one side of the V-shaped rod, a gear meshing with the rack, a rocker arm disposed on the gear, and a lifting shaft disposed on the rocker arm.

[0008] Preferably, the side of the lifting plate away from the storage channel is the rotation center, and the side of the lifting plate closer to the storage channel is connected to a lifting rail seat, which cooperates with the lifting shaft.

[0009] Preferably, the linkage groove includes an ascending arc, a descending arc, and a delay arc. The linkage groove is annular, the ascending arc and the descending arc are connected, and the two ends of the delay arc are respectively connected to the ascending arc and the descending arc.

[0010] Preferably, the bottom of the gear disk is disposed on a gear ring, the gear ring meshing with a drive wheel, and the drive wheel being driven by a motor.

[0011] Preferably, the base is provided with a directional track, and the swing arm rotates along the directional track.

[0012] Compared with the prior art, the beneficial effects of the linked tile pushing and lifting mechanism of the mahjong machine provided by this utility model are: the delay and the movement of the tile pushing rod are achieved by moving the swing arm.

[0013] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the linked tile pushing and lifting mechanism of the mahjong machine according to an embodiment of the present invention.

[0015] Figure 2 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the structure without the pusher lever.

[0016] Figure 3 yes Figure 2 A schematic diagram of the structure without the toothed disc.

[0017] Figure 4 This is a schematic diagram of the bottom structure of the linkage groove of the linked tile pushing and lifting mechanism of a mahjong machine.

[0018] Figure 5 This is a schematic diagram of the linkage mechanism.

[0019] Figure 6 This is a schematic diagram of the main structure of the linked tile pushing and raising mechanism of a mahjong machine.

[0020] Figure 7 This is a schematic diagram of the internal structure of the linked tile pushing and raising mechanism of a mahjong machine.

[0021] in:

[0022] 1-Card storage channel; 2-Card pusher; 21-Delay groove; 3-Card lifting plate; 31-Lifting track seat; 4-Drive wheel; 44-Linkage groove; 441-Rising arc; 442-Descending arc; 443-Delay arc; 5-Base; 51-Directional track; 7-Linkage mechanism; 71-Linkage shaft; 72-V-bar; 73-Rack; 74-Gear; 75-Rocker arm; 76-Lifting shaft; 8-Gear disc; 81-Gear ring; 9-Swing arm. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0024] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0025] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] The rotating tile-feeding mechanism of a mahjong machine consists of identical mechanisms located at each of the four corners. The rotating pusher lever pushes the mahjong tiles from the storage channel along the lifting plate onto the tabletop, where the lifting plate then rises until it is flush with the table surface.

[0028] See Figure 1-7 A linked tile-pushing and lifting mechanism for a mahjong machine includes a base 5, a tile storage channel 1 for holding mahjong tiles mounted on the base 5, a tile-pushing rod 2 for pushing the mahjong tiles in the storage channel 1, and a tile-lifting plate 3 for raising the mahjong tiles in the storage channel 1 to the tabletop. The base 5 is equipped with a toothed disc 8, on which an eccentrically rotatable swing rod 9 is connected. The swing rod 9 drives the tile-pushing rod 2 to rotate. The tile-pushing rod 2 is provided with a delay groove 21 so that the tile-pushing rod 2 does not rotate when the swing rod 9 moves along the delay groove 21. The toothed disc 8 is provided with a linkage groove 44, on which a linkage mechanism 7 is connected for driving the lifting plate 3 to rise and fall. The swing rod is eccentrically mounted on the toothed disc 8.

[0029] Specifically, the overall movement process is as follows: When the side of the lifting plate 3 closest to the storage channel 1 is at its lowest position, the pusher rod 2 rotates to push the mahjong tiles onto the lifting plate 3. As the lifting plate 3 rotates and rises from its lowest point, the toothed disc 8 continues to rotate, while the pusher rod 2 remains stationary. After the lifting plate 3 rises to the tabletop, the toothed disc drives the pusher rod 2 to rotate, and then the lifting plate 3 rotates and descends to its lowest position. The height of the pusher rod 2 is less than the highest position of the lifting plate 3, so that the lifting plates 3 will not interfere with each other when descending. When the lifting plate 3 reaches its lowest position, the toothed disc 8 stops rotating, and the mahjong tiles begin to stack in the storage channel.

[0030] Furthermore, the linkage mechanism 7 includes a linkage shaft 71 that moves along the linkage groove 44, a V-shaped rod 72, a rack 73 disposed on one side of the V-shaped rod 72, a gear 74 that meshes with the rack 73, a rocker arm 75 disposed on the gear 74, and a lifting shaft 76 disposed on the rocker arm 75.

[0031] Specifically, the V-shaped bar 72 is V-shaped when viewed from the top and bottom views. To reflect practical considerations, the two sides are not necessarily at the same height. One side of the V-shaped bar 72 is equipped with a linkage shaft 71, and the far end of this side from the other side is rotatably mounted on the base. A rack 73 is provided on the other side, and a frame is set around the periphery of the side with the rack 73, so that it can only move in the longitudinal direction and will not rotate. The linkage shaft 71 can achieve rolling friction between the bearing and the linkage groove 44. When the rack 73 moves, it can drive the gear 74 to rotate, and the rotation of the gear can drive the rocker arm 75 to rotate. The lifting shaft 76 is fixed on the rocker arm 75 and can also rotate with it. During the rotation, the lifting shaft 76 moves along the track groove on the lifting track seat 31. The rolling friction between the lifting shaft 76 and the track groove reduces mutual wear.

[0032] Furthermore, the side of the lifting plate 3 away from the storage channel 1 is the rotation center, and the side of the lifting plate 3 close to the storage channel 1 is connected to a lifting rail seat 31, which cooperates with the lifting shaft 76.

[0033] Furthermore, the linkage groove 44 includes an ascending arc 441, a descending arc 442, and a delay arc 443. The linkage groove 44 is annular. The ascending arc 441 and the descending arc 442 are connected, and the two ends of the delay arc 443 are connected to the ascending arc 441 and the descending arc 442, respectively. The linkage shaft 71 performs different actions within different arcs of the linkage groove 44, as detailed in the following working process.

[0034] Furthermore, the bottom of the gear disk 8 is disposed on the gear ring 81, the gear ring 81 meshes with a drive wheel 4, and the drive wheel 4 is driven by a motor.

[0035] Furthermore, a directional track 51 is provided on the base 5, and the swing arm 9 rotates along the directional track 51. A bearing is provided on the swing arm 9 to reduce friction when moving within the directional track 51. The diameter of the bearing can be slightly smaller than the width of the directional track 51 to prevent jamming. The swing arm is eccentrically mounted on the gear plate 8, and the swing arm 9 can swing back and forth in the delay groove 21 to achieve the functions of delay and driving the pusher arm 2 to move. The directional track 51 has a protected arc section and a flat section. The arc section is the trajectory of the swing arm rotating to place the card. The flat section also has a slight arc to accommodate the delayed movement of the pusher arm and to facilitate changes in its position.

[0036] The specific work process is as follows (the entire process is based on...). Figure 6 (As shown, the direction of rotation is determined).

[0037] The specific work process can be roughly divided into three parts: the preparation stage for pushing the cards, the card pushing stage, and the card placement completion stage.

[0038] The preparation phase of pushing cards (such as) Figure 6 (As shown): After the two mahjong tiles are stacked one on top of the other, they enter the storage channel 1 through the inlet. Once the mahjong tiles are stacked to the appropriate number, the motor is ready to start.

[0039] The push rod of push stick 2 is at position B, and the swing rod 9 is at position C1.

[0040] The linkage shaft 71 is in the first position of the linkage groove 44 (the intersection of the descending arc 442 and the delay arc 443), and the tile-raising plate 3 is in the lowest position, which allows the mahjong tiles to enter the tile-raising plate.

[0041] Pushing cards phase:

[0042] The pusher lever 2 rotates counterclockwise continuously. From point B, the pusher lever 2 rotates counterclockwise to a position before point C. At this point, all the mahjong tiles enter the tile-raising plate 3 from the tile storage channel 1, but the end of the tile-raising plate 3 closest to the tile storage plate 3 remains at its lowest point and has not rotated. Point C is where the tile-raising plate 3 rotates and rises to the tabletop.

[0043] The lever 9 slowly returned to position A1 from position C1, and the rotation of the pusher lever 2 was smooth and without jamming. Because the lever 9 is eccentrically positioned, its position can change, switching between C1 and A1. The lever 9 moves along the flat section of the directional track 51.

[0044] The linkage shaft 71 moves from the first position of the linkage groove 44 (the intersection of the descending arc 442 and the delay arc 443) along the delay arc to the second position (the intersection of the ascending arc 441 and the delay arc 443). Throughout the process, the end of the lifting plate 3 closest to the storage plate 3 remains at its lowest point and does not rotate.

[0045] Registration completion stage:

[0046] The pusher lever 2 rotates counterclockwise continuously. As it moves from position C to position C, the end of the lifting plate 3 closest to the storage plate 3 rotates from its lowest point onto the table, lifting the mahjong tiles off the table. Position C is where the lifting plate 3 rotates and rises onto the table.

[0047] The pendulum 9 slowly moves from position A1 to position B1, the gear 8 continues to rotate, while the pusher lever 2 remains stationary during this process. The pendulum 9 moves along the flat section of the directional track 51.

[0048] The linkage shaft 71 moves from the second position of the linkage groove 44 (the intersection of the rising arc 441 and the delay arc 443) along the rising arc 441 to the third position (the intersection of the rising arc 441 and the falling arc 442). The end of the tile-raising plate 3 near the tile-storing plate 3 rotates from the lowest point to the table, raising the mahjong tiles off the table.

[0049] Card dealing phase - Card pushing phase:

[0050] The pusher lever 2 always rotates counterclockwise. The pusher lever 2 moves from position C to position A and then to position B. At this time, the end of the lifting plate 3 that is close to the storage plate 3 rotates down from the lowest point (the position flush with the table) to the lowest point.

[0051] The lever 9 slowly moves from position B1 to position C1, the gear 8 continues to rotate, and the push lever 2 slowly rotates to position B.

[0052] The linkage shaft 71 moves from the third position of the linkage groove 44 (the intersection of the rising arc 441 and the falling arc 442) along the falling arc 441 to the first position (the intersection of the falling arc 442 and the delay arc 443), and the tabletop of the card-raising plate 3 near the card-storing plate 3 rotates and descends to the lowest point.

[0053] The entire process only requires one motor for overall drive, and the motor rotates in one direction, repeating the above processes in a continuous manner.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A linked tile pushing and lifting mechanism for a mahjong machine, characterized in that: The device includes a base (5), a storage channel (1) for holding mahjong tiles mounted on the base (5), a pusher (2) for pushing the mahjong tiles in the storage channel (1), and a lifting plate (3) for raising the mahjong tiles in the storage channel (1) to the table. The base (5) is provided with a toothed disc (8), and a swing rod (9) is eccentrically and rotatably connected to the toothed disc (8). The swing rod (9) drives the pusher (2) to rotate. The pusher (2) is provided with a delay groove (21) so that the pusher (2) does not rotate when the swing rod (9) moves along the delay groove (21). The toothed disc (8) is provided with a linkage groove (44), and a linkage mechanism (7) is connected to the linkage groove (44) for driving the lifting plate (3) to rise and fall.

2. The linked tile pushing and lifting mechanism of a mahjong machine as described in claim 1, characterized in that: The linkage mechanism (7) includes a linkage shaft (71) that moves along the linkage groove (44), a V-shaped rod (72), a rack (73) disposed on one side of the V-shaped rod (72), a gear (74) that meshes with the rack (73), a rocker arm (75) disposed on the gear (74), and a lifting shaft (76) disposed on the rocker arm (75).

3. The linked tile pushing and lifting mechanism of a mahjong machine as described in claim 2, characterized in that: The side of the lifting plate (3) away from the storage channel (1) is the rotation center, and the side of the lifting plate (3) close to the storage channel (1) is connected to a lifting rail seat (31), which cooperates with the lifting shaft (76).

4. The linked tile pushing and lifting mechanism of a mahjong machine as described in claim 2, characterized in that: The linkage groove (44) includes an ascending arc (441), a descending arc (442) and a delay arc (443). The linkage groove (44) is annular. The ascending arc (441) and the descending arc (442) are connected. The two ends of the delay arc (443) are connected to the ascending arc (441) and the descending arc (442) respectively.

5. The linked tile pushing and lifting mechanism of a mahjong machine as described in claim 1, characterized in that: The bottom of the gear disc (8) is located on a gear ring (81), which meshes with a drive wheel (4) driven by a motor.

6. The linked tile pushing and lifting mechanism of a mahjong machine as described in claim 1, characterized in that: The base (5) is provided with a directional track (51), and the swing arm (9) rotates along the directional track (51).

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