Mahjong tile pushing mechanism and mahjong machine
The card-pushing mechanism, designed with a cross-link structure and an auxiliary slider, solves the problems of eccentricity and jamming in the card-pushing mechanism of the mahjong machine, achieving stable and smooth card pushing.
Patent Information
- Application Number
- CN202422790306.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-15
AI Technical Summary
The existing mahjong machine's tile-pushing mechanism is prone to problems such as eccentricity and jamming due to the weight of the mahjong tiles, resulting in uneven tile pushing.
The card-pushing mechanism, which adopts a cross-link structure, reduces the force required by the motor and achieves stable card pushing by intersecting the first and second links and cooperating with the auxiliary slider and the tilting section.
This design stabilizes the center of gravity of the card-pushing mechanism, reduces the burden on the motor, prevents motor burnout, and improves the smoothness and reliability of card pushing.
Smart Images

Figure CN223490395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mahjong machines, and in particular to a card-pushing mechanism and a mahjong machine. Background Technology
[0002] The tile-pushing mechanism of a mahjong machine is a complex and precise mechanical system. It works in concert with motor drive, power transmission, tile lifting and pushing devices, and tile support to automatically push the mahjong tiles. In automatic mahjong tables, the tile-pushing mechanism typically works in conjunction with the shuffling mechanism and the tile-collecting mechanism to achieve automatic shuffling, tile collection, and tile pushing. These functions allow players to play mahjong more conveniently and quickly, enhancing the game's fun and ease of use. The tile-pushing mechanism is a crucial component of the mahjong machine, responsible for pushing the shuffled and stacked mahjong tiles from the stacking plate onto the tile-lifting plate. As the plate rises, the mahjong tiles are placed on the tabletop.
[0003] Currently, ordinary mahjong machines use a motor to drive a long strip of tile pusher to move back and forth. Since the mahjong tiles are quite heavy after being stacked, there may be an eccentricity problem. Over time, the mahjong tiles on one side may not be pushed into position and may get stuck.
[0004] This solution proposes a new card-pushing mechanism for use in mahjong machines. Summary of the Invention
[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a card-pushing mechanism and a mahjong machine, which aims to solve the technical problem of a new card-pushing structure.
[0006] To achieve the above objectives, this utility model proposes a card-pushing mechanism, including a card-stacking plate and a card-pushing plate, wherein the card-pushing plate moves back and forth along the surface of the card-stacking plate; one end of a first connecting rod and one end of a second connecting rod are rotatably connected to both ends of the card-pushing plate, the first connecting rod and the second connecting rod are arranged crosswise and connected at the middle position by a pivot; the first connecting rod is rotatably mounted on a fixed column, and the second connecting rod is rotatably connected to a push rod.
[0007] Preferably, the fixing post is disposed on the stacking plate; the pushing plate moves along the width direction of the stacking plate.
[0008] Preferably, the push rod is rotatably connected to one side of the second connecting rod via a pivot; the stacking plate is provided with a track seat, and the track seat is provided with a track groove, on which the second connecting rod moves back and forth.
[0009] Preferably, the push rod includes a translation plate, a connecting rod seat disposed on the translation plate, and an auxiliary moving rod disposed at the end of the translation plate. The connecting rod seat drives the second connecting rod to move. During the process of pushing the mahjong tile, the auxiliary moving rod pushes the intersection of the first connecting rod and the second connecting rod to move in the direction of pushing the mahjong tile.
[0010] Preferably, an auxiliary slider is connected to the pivot at the intersection of the first connecting rod and the second connecting rod, and the auxiliary slider is a cylindrical block.
[0011] Preferably, the auxiliary moving rod is provided with a horizontal section and an inclined section; when the mahjong tile is about to be pushed, the auxiliary slider contacts the horizontal section; during the pushing process, the auxiliary slider moves along the inclined section in the direction of pushing the mahjong tile.
[0012] Preferably, the push rod is driven by a drive mechanism, which includes a motor.
[0013] Preferably, the drive mechanism includes a cam driven by a motor, the cam having a guide groove, a bearing being disposed within the guide groove, and the bearing being fixed to a push rod.
[0014] Preferably, the guide groove includes a delay groove and a push-pull groove; the delay groove is a semi-circular arc, and the push-pull groove is a cam groove.
[0015] To achieve the above objectives, this utility model proposes a mahjong machine that uses the aforementioned card-pushing mechanism; the card-stacking plate is located on the side of the card-lifting plate.
[0016] Compared with the prior art, the beneficial effects of the card-pushing mechanism and mahjong machine provided by this utility model are as follows:
[0017] 1. The card pusher is pushed by a cross linkage, which keeps the center of gravity stable and prevents the card pusher from tilting.
[0018] 2. The inclined section of the auxiliary moving rod can help push the auxiliary slider outward, reducing the force required by the motor and preventing the motor from burning out.
[0019] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of a mahjong machine card-pushing mechanism according to an embodiment of the present invention.
[0021] Figure 2 This is a schematic diagram of the connection between the push rod and the connecting rod of a mahjong machine pusher mechanism according to an embodiment of the present invention.
[0022] Figure 3This is a schematic diagram of the connection between the push rod and the connecting rod of a mahjong machine pusher mechanism according to another embodiment of the present invention.
[0023] Figure 4 This is an enlarged structural diagram of point A.
[0024] Figure 5 This is a schematic diagram of the structure after the connecting rod is unfolded.
[0025] Figure 6 This is a schematic diagram of the drive mechanism.
[0026] Figure 7 This is a schematic diagram of the stacked card board structure.
[0027] Figure 8 This is a magnified structural diagram of point B.
[0028] Figure 9 This is a magnified structural diagram at point C.
[0029] in:
[0030] 1-Stacking plate; 11-Rail seat; 111-Rail groove; 2-Pushing plate; 3-First connecting rod; 4-Second connecting rod; 5-Fixed column; 6-Push rod; 61-Transfer plate; 62-Connecting rod seat; 63-Auxiliary moving rod; 631-Horizontal section; 632-Inclined section; 7-Auxiliary slider; 8-Drive mechanism; 81-Motor; 82-Cam; 83-Bearing; 84-Guide groove; 841-Delay groove; 842-Push-pull groove; 9-Lifting plate. Detailed Implementation
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] See Figure 1 As shown in the figure, this utility model embodiment provides a mahjong machine equipped with a tile-pushing mechanism. The mahjong machine has four sides, each equipped with a tile-pushing mechanism. Each of the four sides of the mahjong machine has a tile-stacking plate 1, and each tile-stacking plate 1 has a tile-lifting plate 9 on its side. After the mahjong tiles are stacked on the tile-stacking plate 1, the tile-pushing mechanism pushes the mahjong tiles on the tile-stacking plate 1 onto the tile-lifting plate 9, and the tile-lifting plate 9 rises to lift the mahjong machine off the table.
[0036] See Figure 1-9In an optional embodiment, a card-pushing mechanism includes a stacking plate 1 and a pushing plate 2, wherein the pushing plate 2 moves back and forth along the surface of the stacking plate 1. The pushing plate 2 moves along the width direction of the stacking plate 1. One end of a first connecting rod 3 and one end of a second connecting rod 4 are rotatably connected to both ends of the pushing plate 2, respectively. The first connecting rod 3 and the second connecting rod 4 are intersected and connected at the middle position by a pivot. The first connecting rod 3 is rotatably mounted on a fixed post 5, and the second connecting rod 4 is rotatably connected to a push rod 6. Card pushing is achieved through the contraction and expansion of the first connecting rod 3 and the second connecting rod 4. The pushing plate 2 has multiple force points, resulting in balanced force distribution. The pushing plate 2 will not tilt, preventing some mahjong tiles from being pushed out of position and causing jamming.
[0037] See Figure 1 , Figure 7 and Figure 8 In an optional embodiment, the fixing post 5 is disposed on the stacking plate 1, and the first connecting rod 3 is rotatably disposed on the fixing post 5. The first connecting rod 3 remains in the fixed post 5 position whether it is in the retracted or extended state.
[0038] See Figure 2 , Figure 3 , Figure 5 and Figure 9 In an optional embodiment, the push rod 6 is rotatably connected to one side of the second connecting rod 4 via a pivot. A track seat 11 is provided on the stacking plate 1, and a track groove 111 is provided on the track seat 11, allowing the second connecting rod 4 to move back and forth on the track groove 111.
[0039] Specifically, a bearing is installed on the rotating shaft, and the width of the bearing is adapted to the track groove 111. When the push rod 6 moves along the length of the stacking plate 1, the bearing also moves back and forth along the track groove 111. Figure 5 For example, in the retracted state, the bearing is at the top of track 111, and in the extended state, the bearing is at the bottom of track 111.
[0040] See Figure 2-5In an optional embodiment, the push rod 6 includes a translation plate 61, a connecting rod seat 62 disposed on the translation plate 61, and an auxiliary moving rod 63 disposed at the end of the translation plate 61. The connecting rod seat 62 drives the second connecting rod 4 to move. During the pushing of the mahjong tile, the auxiliary moving rod 63 pushes the intersection of the first connecting rod 3 and the second connecting rod 4 to move in the direction of pushing the mahjong tile. An auxiliary slider 7, which is a cylindrical block, is connected to the pivot at the intersection of the first connecting rod 3 and the second connecting rod 4. The auxiliary moving rod 63 is provided with a horizontal section 631 and an inclined section 632; when the mahjong tile is about to be pushed, the auxiliary slider 7 contacts the horizontal section 631; during the pushing of the mahjong tile, the auxiliary slider 7 moves along the inclined section 632 in the direction of pushing the mahjong tile.
[0041] Specifically, in the retracted state, the auxiliary slider 7 rests against the horizontal section 631. When the push rod 6 moves to push the mahjong tile onto the lifting plate 9, the auxiliary slider 7 moves further along the inclined section 632. If it simply moves along the track groove 111 via the rotating shaft connected to the second connecting rod 4 and the push rod 6, the required thrust is relatively large, and the motor is prone to burnout.
[0042] In an optional embodiment, the push rod 6 is driven by a drive mechanism 8, which includes a motor 81. The drive mechanism 8 can be various, such as being driven by a cam, a telescopic rod, or a rocker arm. The following section will elaborate on the cam-based approach.
[0043] See Figure 2 , Figure 5 and Figure 6 In an optional embodiment, the drive mechanism 8 includes a cam 82 driven by a motor 81. The cam 82 is provided with a guide groove 84, and a bearing 83 is provided in the guide groove 84. The bearing 83 is fixed to the push rod 6. The guide groove 84 includes a delay groove 841 and a push-pull groove 842; the delay groove 841 is a semi-circular arc, and the push-pull groove 842 is a cam groove.
[0044] Specifically, when bearing 83 rotates in delay groove 841, the connecting rod remains in a retracted state. When it enters push-pull groove 842 from delay groove 841, the connecting rod changes from a retracted state to an extended state. At the middle position of push-pull groove 842, the mahjong tile is pushed to its furthest point, onto the tile-raising plate 9, and continues to rotate, causing the connecting rod to change from an extended state to a retracted state. When it enters delay groove 841 from push-pull groove 842, it returns to a fully compressed state.
[0045] 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 card-pushing mechanism, comprising a card-stacking plate (1) and a card-pushing plate (2), wherein the card-pushing plate (2) moves back and forth along the surface of the card-stacking plate (1); characterized in that: The push plate (2) is rotatably connected to one end of the first connecting rod (3) and one end of the second connecting rod (4). The first connecting rod (3) and the second connecting rod (4) are arranged crosswise and connected by a pivot in the middle position. The first connecting rod (3) is rotatably mounted on a fixed column (5), and the second connecting rod (4) is rotatably connected to a push rod (6).
2. The card-pushing mechanism as described in claim 1, characterized in that: The fixed column (5) is set on the stacking plate (1); the push plate (2) moves along the width direction of the stacking plate (1).
3. The card-pushing mechanism as described in claim 1, characterized in that: The push rod (6) is rotatably connected to one side of the second connecting rod (4) via a rotating shaft; a track seat (11) is provided on the stacking plate (1), and a track groove (111) is provided on the track seat (11), and the second connecting rod (4) moves back and forth on the track groove (111).
4. The card-pushing mechanism as described in claim 1, characterized in that: The push rod (6) includes a translation plate (61), a connecting rod seat (62) disposed on the translation plate (61), and an auxiliary moving rod (63) disposed at the end of the translation plate (61). The connecting rod seat (62) drives the second connecting rod (4) to move. During the process of pushing the mahjong tile, the auxiliary moving rod (63) pushes the first connecting rod (3) and the second connecting rod (4) to move in the direction of pushing the mahjong tile at their intersection position.
5. A card-pushing mechanism as described in claim 4, characterized in that: An auxiliary slider (7) is connected to the pivot at the intersection of the first link (3) and the second link (4). The auxiliary slider (7) is a cylindrical block.
6. A card-pushing mechanism as described in claim 5, characterized in that: The auxiliary moving rod (63) is provided with a horizontal section (631) and an inclined section (632); when the mahjong tile is about to be pushed, the auxiliary slider (7) and the horizontal section (631) come into contact; During the process of pushing the mahjong tile, the auxiliary slider (7) moves along the inclined section (632) in the direction of pushing the mahjong tile.
7. A card-pushing mechanism as described in claim 1, characterized in that: The push rod (6) is driven by a drive mechanism (8), which includes a motor (81).
8. A card-pushing mechanism as described in claim 7, characterized in that: The drive mechanism (8) includes a cam (82) driven by a motor (81), a guide groove (84) is provided on the cam (82), a bearing (83) is provided in the guide groove (84), and the bearing (83) is fixed on the push rod (6).
9. A card-pushing mechanism as described in claim 8, characterized in that: The guide groove (84) includes a delay groove (841) and a push-pull groove (842); the delay groove (841) is a semi-circular arc, and the push-pull groove (842) is a cam groove.
10. A mahjong machine, characterized in that: The card pushing mechanism as described in any one of claims 1-9 is used; the card stacking plate (1) is disposed on the side of the card lifting plate (9).