Mahjong tile pushing mechanism and inclined mahjong tile feeding device of automatic mahjong machine

Abstract

The utility model discloses a tile pushing mechanism and an inclined tile feeding device of an automatic mahjong machine, and solves the problem that a tile pushing arm seat in the tile pushing mechanism is troublesome to mount and dismount. The tile pushing mechanism of the automatic mahjong machine comprises a tile pushing support, a tile pushing wheel, a tile pushing arm seat and a positioning piece, the tile pushing support is provided with an installation column and a tile pushing groove for storing mahjong tiles, the tile pushing groove comprises a tile inlet and a tile outlet, and an arc-shaped bent structure with the bending angle larger than 180 degrees is formed from the tile inlet to the tile outlet. The tile pushing wheel rotates relative to the tile pushing support, the tile pushing arm seat and the tile pushing wheel rotate simultaneously, the positioning piece is connected with the installation column in a sleeved mode and detachably and fixedly connected with the installation column, and the end, away from the tile pushing support, of the positioning piece is provided with a turned edge extending outwards in the radial direction, and the tile pushing wheel and the tile pushing arm seat are sequentially and rotationally connected with the positioning piece from bottom to top. And the tile pushing wheel and the tile pushing arm seat are limited between the turned-over edge and the tile pushing bracket. The utility model further provides an inclined tile feeding device which comprises the tile pushing mechanism in the technical scheme.

Description

Technical Field

[0001] This utility model relates to the field of automatic mahjong machine technology, and in particular to the tile pushing mechanism of an automatic mahjong machine. Background Technology

[0002] The automatic mahjong machine with tilting tile feeding mechanism includes a tile pushing bracket and a tile pushing component. The tile pushing bracket has an arc-shaped tile pushing groove for storing mahjong tiles. The tile pushing component includes a tile pushing motor, a tile pushing arm base, and a tile pushing head mounted on the tile pushing arm base. The tile pushing motor drives the tile pushing arm base to rotate, and one end of the tile pushing head pushes the mahjong tiles in the tile pushing groove.

[0003] In the prior art, the pusher arm seat is often tightly fitted onto the motor shaft of the pusher motor. However, since the pusher motor must be fixed to the bottom of the pusher bracket, while the pusher arm seat is located at the top of the pusher bracket, the installation and disassembly of the pusher arm seat are quite troublesome. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art by proposing a card pushing mechanism for an automatic mahjong machine, so as to solve the problem of troublesome installation and disassembly of the card pushing arm seat in the card pushing mechanism.

[0005] To achieve the above technical objectives, the automatic mahjong machine's tile-pushing mechanism proposed in this utility model includes:

[0006] The tile pusher bracket is equipped with a mounting column and a tile pusher slot for storing mahjong tiles. The tile pusher slot includes a tile inlet and a tile outlet, and has an arc-shaped curved structure with a bending angle greater than 180° from the tile inlet to the tile outlet.

[0007] The card-pushing wheel rotates relative to the card-pushing bracket;

[0008] The card-pushing arm mount rotates in tandem with the card-pushing wheel; and

[0009] A positioning component is sleeved with the mounting post and detachably fixed to the mounting post. The end of the positioning component facing away from the card pusher bracket has a flange extending radially outward. The card pusher wheel and the card pusher arm seat are rotatably connected to the positioning component from bottom to top. The card pusher wheel and the card pusher arm seat are limited between the flange and the card pusher bracket.

[0010] The card-pushing mechanism of this utility model achieves a detachable connection between the card-pushing wheel, the card-pushing arm seat, and the card-pushing bracket through a mounting column on the card-pushing bracket and a positioning component that is detachably connected to the mounting column. The flange of the positioning component limits the card-pushing wheel and the card-pushing arm seat to the card-pushing bracket. In this way, the card-pushing wheel and the card-pushing arm seat are limited on the card-pushing bracket by the positioning component, reducing the shaking of the card-pushing wheel and the card-pushing arm seat during operation. At the same time, the cooperative installation method of the positioning component and the card-pushing bracket simplifies the installation of the card-pushing wheel and the card-pushing arm seat, making the installation and disassembly of the card-pushing wheel and the card-pushing arm seat more convenient.

[0011] Preferably, the positioning member is provided with a socket hole, the mounting post is sleeved in the socket hole, and a limiting piece is provided at the end of the socket hole away from the pusher bracket, the limiting piece limiting the depth of the socket hole.

[0012] By adopting the aforementioned technical solution, a limiting piece is set in the positioning component to limit the positional relationship between the positioning component and the mounting column, providing error prevention for the installation of the positioning component, avoiding positional deviation of the positioning component mounting column, and reducing the assembly difficulty.

[0013] Preferably, one of the mounting post and the limiting piece is provided with a positioning post, and the other is provided with a positioning groove, and the mounting post and the positioning piece are positioned and engaged through the positioning post and the positioning groove.

[0014] Using the aforementioned technical solution, the mounting column and the limiting piece are positioned by the cooperation of the positioning column and the positioning groove. The positioning component is further protected against errors during installation to ensure the accuracy of the installation. At the same time, the cooperation of the positioning column and the positioning groove can also limit the rotation of the positioning component and prevent the detachable structure between the positioning component and the mounting column from loosening.

[0015] Preferably, the mounting post is provided with a mounting hole, and the limiting piece is provided with a through hole opposite to the mounting hole. The screw passes through the through hole and is screwed into the mounting hole to fix the positioning member to the mounting post.

[0016] Using the aforementioned technical solution, the mounting column and the positioning component are detachably fixedly connected by screws. The installation and disassembly of the positioning component are relatively simple, saving assembly and disassembly time and reducing assembly and subsequent maintenance costs.

[0017] Preferably, a washer is also fitted on the mounting post, the washer being located between the card pusher bracket and the card pusher wheel, and the end of the card pusher wheel near the card pusher bracket is provided with an annular groove for accommodating the washer.

[0018] By adopting the aforementioned technical solution, on the one hand, direct friction between the pusher wheel and the pusher bracket can be avoided, reducing wear on the pusher bracket caused by the rotation of the pusher wheel and improving the service life of the pusher bracket. On the other hand, the cooperation between the washer and the annular groove of the pusher wheel can also increase the stability of the pusher wheel's rotation and improve the operational stability of the pusher mechanism.

[0019] Preferably, one of the washer and the mounting post is provided with a limiting groove, and the other is provided with a corresponding limiting protrusion. The limiting protrusion and the limiting groove cooperate to restrict the rotation of the washer relative to the mounting post.

[0020] By adopting the aforementioned technical solution, the washer is fixed relative to the card pusher bracket, thereby further reducing the wear of the card pusher bracket caused by the rotation of the card pusher wheel and further improving the service life of the card pusher bracket.

[0021] Preferably, the pusher arm seat has a boss on the side facing the pusher wheel, the pusher wheel has a storage groove for accommodating the boss, the shape of the storage groove matches the shape of the boss, the pusher arm seat also has a mounting part extending into the pusher groove, the mounting part and the boss are connected by a reinforcing rib, and the groove wall of the storage groove has a notch for limiting the reinforcing rib.

[0022] By adopting the aforementioned technical solution and through the above-mentioned settings, the pusher arm and pusher wheel achieve error prevention during assembly through the cooperation of the boss and the storage groove, reducing the difficulty of assembling the pusher arm and pusher wheel and reducing the labor cost of assembly. At the same time, a reinforcing rib is provided between the mounting part of the pusher arm and the boss, which improves the strength at the connection position between the mounting part and the pusher arm and increases the service life of the pusher arm. Furthermore, a notch for limiting the reinforcing rib is provided on the groove wall of the storage groove. The pusher arm and pusher wheel achieve co-rotation through the cooperation of the notch and the reinforcing rib, which simplifies the co-rotation structure of the pusher arm and pusher wheel and reduces costs.

[0023] This utility model also proposes a tilting tile-feeding device for an automatic mahjong machine, including a tile-lifting mechanism and a tile-pushing mechanism of any of the above technical solutions. The tile-lifting mechanism includes a tile-lifting motor and a tile-lifting plate. The tile-lifting motor is used to drive the tile-lifting plate to swing up and down. The tile-pushing mechanism also includes a tile-pushing motor and a drive gear. The drive gear is driven by the tile-pushing motor. The tile-pushing wheel has several teeth circumferentially. The tile-pushing wheel is constructed as an incomplete gear and intermittently meshes with the drive gear. The drive gear is provided with a synchronously rotating first positioning block. The first positioning block has a convex arc surface. The tile-pushing wheel is provided with a synchronously rotating second positioning block. The second positioning block has a concave arc surface. The convex arc surface and the concave arc surface are in a concave-convex fit to lock the tile-pushing wheel in a non-meshing state.

[0024] The tilting tile-feeding device of this invention utilizes the intermittent meshing transmission between the drive gear and the push gear in the tile-pushing mechanism. In the non-meshing state, the drive gear and the push gear lock the push gear through the convex-concave engagement of their convex and concave surfaces. This prevents the push component from moving backward under the downward force of the mahjong tiles, allowing the push component to hold the mahjong tiles in place during the tile-lifting process, reducing the downward movement of the mahjong tiles on the lifting plate, thereby improving the reliability and stability of the tilting tile-feeding device in lifting the mahjong tiles.

[0025] Preferably, the drive gear is also provided with a large convex tooth, and the push wheel includes a toothed part and a toothless part. The drive gear rotates relative to the toothless part to disengage the push wheel and the drive gear. The toothless part is provided with a paddle block. The large convex tooth paddles the paddle block to make the non-engaged push wheel re-engage the drive gear.

[0026] By adopting the aforementioned technical solution and through the above-mentioned settings, the rotation of the drive gear enables the drive gear and the push gear to return from a non-meshing state to a meshing state, thus simplifying the transmission structure between the drive gear and the push gear.

[0027] Preferably, the toothed portion is provided with a clearance groove that mates with the large convex tooth.

[0028] By adopting the aforementioned technical solution and through the above-mentioned settings, interference between the large convex tooth and the toothed part of the drive gear and the push wheel can be avoided during the meshing process. Furthermore, the cooperation between the large convex tooth and the clearance groove ensures that the toothed parts of the drive gear and the push wheel remain meshed throughout the meshing process, thereby improving the reliability of the meshing transmission between the drive gear and the push wheel.

[0029] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0030] Figure 1 A schematic diagram of the tilting tile-loading device of the automatic mahjong machine in an embodiment of this utility model;

[0031] Figure 2 This is an exploded view of the tile-pushing mechanism of the automatic mahjong machine in an embodiment of this utility model;

[0032] Figure 3 This is a schematic diagram of the card pusher arm seat in an embodiment of the present utility model;

[0033] Figure 4 This is a schematic diagram of the card-pushing wheel in an embodiment of the present utility model;

[0034] Figure 5 This is another schematic diagram of the card pusher wheel in an embodiment of this utility model;

[0035] Figure 6 This is a partial view of the mounting column on the card pusher bracket in an embodiment of this utility model;

[0036] Figure 7 This is a schematic diagram of the gasket in an embodiment of the present utility model;

[0037] Figure 8 This is a schematic diagram of the positioning component in an embodiment of the present utility model;

[0038] Figure 9 This is a schematic diagram of another positioning element in an embodiment of the present utility model;

[0039] Figure 10 This is a schematic diagram of the card-pushing wheel and drive gear in an embodiment of this utility model;

[0040] Figure 11 This is a schematic diagram showing the concave-convex fit between the concave arc surface and the convex arc surface in the non-meshing state of the push wheel and the drive gear in this embodiment of the present invention.

[0041] Figure 12 This is a schematic diagram of the large convex tooth engaging with the paddle block in the non-meshing state of the push wheel and drive gear in an embodiment of this utility model.

[0042] Figure 13 This is a schematic diagram showing the engagement of the large convex tooth and the clearance groove in the meshing state of the push wheel and the drive gear in an embodiment of this utility model.

[0043] Figure label:

[0044] 10. Card pushing mechanism; 11. Decorative cover; 12. Card pushing motor;

[0045] 20. Plate lifting mechanism; 21. Plate lifting bracket; 22. Plate lifting plate;

[0046] 100. Card pusher bracket; 110. Card pusher groove; 111. Card inlet; 112. Card outlet; 120. Mounting post; 121. Mounting hole; 122. Positioning post; 123. Post part; 124. Base; 125. Limiting protrusion; 130. Washer; 131. Limiting groove.

[0047] 200, push wheel; 201, annular groove; 210, storage groove; 211, notch; 220, second positioning block; 221, concave arc surface; 230, toothed part; 231, second toothed part; 232, clearance groove; 240, toothless part; 241, push block.

[0048] 300, pusher arm seat; 301, groove; 310, boss; 320, mounting part; 330, reinforcing rib;

[0049] 400, positioning component; 401, flange; 410, socket hole; 411, limiting piece; 412, positioning groove.

[0050] 500, drive gear; 510, first positioning block; 511, convex arc surface; 520, first tooth; 521, large convex tooth. Detailed Implementation

[0051] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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.

[0053] 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 this utility model, unless otherwise stated, "a plurality of" or "several" means two or more, unless otherwise expressly defined.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] like Figures 1 to 9 As shown, the automatic mahjong machine pusher mechanism 10 proposed in this embodiment includes a pusher bracket 100, a pusher wheel 200, a pusher arm seat 300, a positioning component 400, and a pusher head (not shown).

[0056] The tile pusher 100 has a tile pusher slot 110 for storing mahjong tiles. The tile pusher slot 110 includes a tile inlet 111 and a tile outlet 112, and the tile pusher slot 110 has an arc-shaped curved structure with a bending angle greater than 180° from the tile inlet 111 to the tile outlet 112. The tile pusher wheel 200 rotates relative to the tile pusher 100, and the tile pusher arm 300 rotates with the tile pusher wheel 200. The tile pusher head is mounted on the tile pusher arm 300, with one end of the tile pusher head placed in the tile pusher slot 110. The rotation of the tile pusher arm 300 causes the tile pusher head to push the mahjong tiles in the tile pusher slot 110 towards the tile outlet 112.

[0057] The pusher wheel 200 can be driven to rotate by a pusher motor or a lifter motor in the lifter mechanism 20 of an automatic mahjong machine via a transmission component. The simultaneous rotation of the pusher arm 300 and the pusher wheel 200 can be achieved through a fixed connection between the two or through transmission via the transmission component.

[0058] In this embodiment, the card pusher bracket 100 is further provided with a mounting post 120, and the positioning member 400 is sleeved with the mounting post 120, and the positioning member 400 and the mounting post 120 are detachably fixedly connected. The end of the positioning member 400 facing away from the card pusher bracket 100 is provided with a radially outwardly extending flange 401. The card pusher wheel 200 and the card pusher arm seat 300 are rotatably connected to the positioning member 400 from bottom to top, and the card pusher wheel 200 and the card pusher arm seat 300 are limited between the flange 401 and the card pusher bracket 100.

[0059] The positioning element 400 and the mounting post 120 can be connected in two ways: the positioning element 400 can be sleeved on the outside of the mounting post 120, or the mounting post 120 can be sleeved on the outside of the positioning key. One of the positioning element 400 and the mounting post 120 has a sleeve hole for sleeve connection, and the other is sleeved into the sleeve hole. The positioning element 400 and the mounting post 120 can be detachably connected by screws or snap-fit ​​connections. The pusher wheel 200 and the pusher arm seat 300 are respectively provided with through holes that rotatably connect with the positioning element 400. The through holes are clearance-fitted with the positioning element 400, allowing the pusher wheel 200 and the pusher arm seat 300 to rotate relative to the positioning element 400.

[0060] During assembly, the pusher wheel 200 and pusher arm seat 300 are first sequentially fitted onto the mounting post 120. Then, the positioning component 400 is fitted onto the mounting post 120. The positioning component 400 passes through the through holes of the pusher wheel 200 and pusher arm seat 300, allowing the pusher wheel 200 and pusher arm seat 300 to rotate relative to the positioning component 400. When it is necessary to disassemble the pusher wheel 200 or the pusher arm, the positioning component 400 is removed, and then the pusher arm and pusher wheel 200 can be sequentially removed from the pusher bracket 100.

[0061] In this embodiment, the card-pushing mechanism 10 achieves a detachable connection between the card-pushing wheel 200, the card-pushing arm seat 300, and the card-pushing bracket 100 via the mounting post 120 on the card-pushing bracket 100 and the positioning member 400 detachably connected to the mounting post 120. The flange 401 of the positioning member 400 limits the card-pushing wheel 200 and the card-pushing arm seat 300 to the card-pushing bracket 100. In this way, the card-pushing wheel 200 and the card-pushing arm seat 300 are limited to the card-pushing bracket 100 by the positioning member 400, reducing the shaking of the card-pushing wheel 200 and the card-pushing arm seat 300 during operation. At the same time, the cooperative installation method of the positioning member 400 and the card-pushing bracket 100 simplifies the installation of the card-pushing wheel 200 and the card-pushing arm seat 300, making the installation and disassembly of the card-pushing wheel 200 and the card-pushing arm seat 300 more convenient.

[0062] In one embodiment, such as Figure 1 , Figure 2 As shown, based on the aforementioned embodiment of the card-pushing mechanism 10, the card-pushing mechanism 10 further includes a decorative cover 11. The card-pushing arm seat 300 is provided with a groove 301 for accommodating the flange 401. The decorative cover 11 covers the groove 301 and is snap-fitted to the positioning member 400. The decorative cover 11 prevents debris from entering the interior of the automatic mahjong machine through the gap between the positioning member 400 and the mounting post 120, and also improves the aesthetics.

[0063] In one embodiment, the card-pushing mechanism 10 based on the foregoing embodiment, such as Figure 1 , Figure 2 , Figure 7 As shown, the positioning member 400 is provided with a sleeve hole 410, so that the positioning member 400 is configured as a bushing structure. The mounting post 120 is sleeved in the sleeve hole 410. A limiting piece 411 is provided in the end of the sleeve hole 410 away from the push bracket 100, and the limiting piece 411 limits the depth of the sleeve hole 410.

[0064] By setting a limiting piece 411 in the positioning piece 400, the positional relationship between the positioning piece 400 and the mounting post 120 is limited, which provides error prevention for the installation of the positioning piece 400, avoids positional deviation between the positioning piece 400 and the mounting post 120, and reduces the assembly difficulty.

[0065] In one embodiment, the card-pushing mechanism 10 based on the foregoing embodiment, such as Figure 2 , Figures 6 to 9 As shown, the mounting post 120 is provided with a mounting hole 121, and the limiting piece 411 is provided with a through hole opposite to the mounting hole 121. The screw passes through the through hole and screws into the mounting hole 121 to detachably fix the positioning member 400 to the mounting post 120.

[0066] The mounting post 120 and the positioning component 400 are detachably fixedly connected by screws. The installation and removal of the positioning component 400 are relatively simple, saving assembly and disassembly time and reducing assembly and subsequent maintenance costs.

[0067] In one embodiment, the card-pushing mechanism 10 based on the foregoing embodiment, such as Figure 2 , Figures 6 to 9 As shown, the mounting post 120 is provided with a positioning post 122, and the limiting piece 411 is provided with a corresponding positioning groove 412. The mounting post 120 and the positioning piece 400 are positioned and cooperated through the positioning post 122 and the positioning groove 412.

[0068] Specifically, in this embodiment, since there is no limitation on the relative angle between the positioning member 400 and the mounting post 120, three positioning posts 122 are provided and are evenly distributed circumferentially on the upper end of the mounting post 120, and three positioning grooves 412 are provided accordingly. The three positioning posts 122 are respectively inserted into the positioning grooves 412, thereby restricting the rotation of the positioning member 400 relative to the mounting post 120.

[0069] In some other embodiments, the positioning posts 122 may also be provided in other quantities, such as one, two or more.

[0070] It is understood that in some other embodiments, the limiting piece 411 may also have a positioning post 122 protruding towards the mounting post 120, and the side wall at the upper end of the mounting post 120 may have a positioning groove 412 that cooperates with the positioning post 122.

[0071] The mounting post 120 and the limiting piece 411 are positioned by the cooperation of the positioning post 122 and the positioning groove 412. The positioning part 400 is further protected against errors during installation to ensure the accuracy of the installation. At the same time, the cooperation of the positioning post 122 and the positioning groove 412 can also limit the rotation of the positioning part 400 and prevent the detachable structure between the positioning part 400 and the mounting post 120 from loosening.

[0072] In one embodiment, the card-pushing mechanism 10 based on the foregoing embodiment, such as Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, a washer 130 is also fitted on the mounting post 120. The washer 130 is located between the push card bracket 100 and the push card wheel 200. The end of the push card wheel 200 near the push card bracket 100 is provided with an annular groove 201 to accommodate the washer 130.

[0073] The mounting post 120 includes a base 124 and a post 123. A washer 130 is fitted onto the post 123 and pressed against the base 124 by the pusher wheel 200. During the rotation of the pusher wheel 200, the annular groove 201 cooperates with the washer 130 to increase the stability of the pusher wheel 200's rotation.

[0074] Since the card pusher bracket 100 is made of plastic and integrally molded by injection molding, the card pusher bracket 100 has a thin-walled structure with relatively similar wall thicknesses in various parts. Through the above-mentioned design, on the one hand, direct friction between the card pusher wheel 200 and the card pusher bracket 100 can be avoided, reducing wear on the card pusher bracket 100 caused by the rotation of the card pusher wheel 200 and improving the service life of the card pusher bracket 100. On the other hand, the cooperation between the washer 130 and the annular groove 201 of the card pusher wheel 200 can also increase the stability of the rotation of the card pusher wheel 200 and improve the operational stability of the card pusher mechanism 10.

[0075] In one embodiment, the card-pushing mechanism 10 based on the foregoing embodiment, such as Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, the washer 130 has a limiting groove 131, and the mounting post 120 has a corresponding limiting protrusion 125. The limiting protrusion 125 and the limiting groove 131 cooperate to limit the rotation of the washer 130. The limiting protrusion 125 is located on the base 124, and at least a portion of the limiting protrusion 125 extends into the limiting groove 131, so that the groove wall of the limiting groove 131 restricts the circumferential rotation of the limiting protrusion 125. In this way, the washer 130 remains fixed relative to the card pusher bracket 100, thereby further reducing the wear of the card pusher bracket 100 caused by the rotation of the card pusher wheel 200, and further improving the service life of the card pusher bracket 100.

[0076] In one embodiment, the card-pushing mechanism 10 based on the foregoing embodiment, such as Figures 1 to 4 As shown, the pusher arm seat 300 has a boss 310 on the side facing the pusher wheel 200, and the pusher wheel 200 has a storage groove 210 to accommodate the boss 310. The shape of the storage groove 210 matches the shape of the boss 310.

[0077] Among them, the pusher arm 300 and the pusher wheel 200 are installed and positioned by the cooperation of the boss 310 and the storage groove 210. The shape of the storage groove 210 matches the shape of the boss 310, thereby realizing the error prevention of the installation of the pusher arm 300 and the pusher wheel 200.

[0078] In this embodiment, the boss 310 is a polygon with rounded corners. The pusher wheel 200 has a sidewall that protrudes circumferentially toward the pusher arm seat 300, and a storage groove 210 is formed between the sidewalls. The shape of the storage groove 210 matches that of the boss 310.

[0079] In some other embodiments, the boss 310 may also be of other shapes.

[0080] In this embodiment, the pusher arm base 300 is further provided with a mounting portion 320 extending into the pusher slot 110. The mounting portion 320 of the pusher arm base 300 is used to mount the pusher head. One end of the pusher head is connected to the boss 310, and the other end is placed in the pusher slot 110 to push the mahjong tiles. The mounting portion 320 extends out of the pusher arm base 300 to form a cantilever structure. In order to improve the strength of the mounting portion 320, a reinforcing rib 330 is connected between the mounting portion 320 and the boss 310.

[0081] The storage groove 210 has a notch 211 on its groove wall for limiting reinforcing ribs 330. The pusher arm seat 300 and the pusher wheel 200 rotate together through the cooperation of the notch 211 and the reinforcing ribs 330.

[0082] In this embodiment, two reinforcing ribs 330 are provided, and the two reinforcing ribs 330 are respectively provided on the left and right sides of the mounting part 320. There is one notch 211, and the two sides of the notch 211 are respectively limited to one of the reinforcing ribs 330.

[0083] In some other embodiments, there may be two notches 211, with each notch 211 limiting one of the reinforcing ribs 330.

[0084] In some other embodiments, multiple reinforcing ribs 330 may be provided, and one or more notches 211 may be provided.

[0085] Through the above-mentioned configuration, the pusher arm 300 and the pusher wheel 200 achieve error prevention during assembly through the cooperation of the boss 310 and the storage groove 210, reducing the difficulty of assembling the pusher arm 300 and the pusher wheel 200 and reducing the labor cost of assembly. At the same time, a reinforcing rib 330 is provided between the mounting part 320 of the pusher arm 300 and the boss 310, which improves the strength at the connection position between the mounting part 320 and the pusher arm 300 and increases the service life of the pusher arm 300. Furthermore, a notch 211 for limiting the reinforcing rib 330 is provided on the groove wall of the storage groove 210. The pusher arm 300 and the pusher wheel 200 achieve co-rotation through the cooperation of the notch 211 and the reinforcing rib 330, which simplifies the co-rotation structure of the pusher arm 300 and the pusher wheel 200 and reduces the cost.

[0086] This utility model also proposes a tilting tile-loading device for an automatic mahjong machine, such as... Figure 1 , Figure 2 As shown, it includes a tile-lifting mechanism 20 and a tile-pushing mechanism 10 from all the aforementioned embodiments. The tile-lifting mechanism 20 includes a tile-lifting bracket 21, a tile-lifting motor, and a tile-lifting plate 22. The tile-lifting plate 22 is rotatably connected to the tile-lifting bracket 21. The tile-lifting motor drives the tile-lifting plate 22 to perform a swinging up-and-down movement. When the tile-lifting plate 22 swings down, it connects to the tile outlet 112. The tile-pushing component pushes the mahjong tiles onto the tile-lifting plate 22. When the tile-lifting plate 22 swings up, it lifts the mahjong tiles onto the table of the automatic mahjong machine.

[0087] The tile-lifting bracket 21 connects to the tile-pushing slot 110's tile outlet 112, and has a swinging space for the tile-lifting plate 22 to swing and rise. One end of the tile-lifting plate 22 is rotatably connected to the end of the tile-lifting bracket 21 away from the tile outlet 112. The tile-lifting motor drives the tile-lifting plate 22 to swing and rise, causing the other end of the tile-lifting plate 22 to move up and down. In the receiving state, the tile-lifting plate 22 swings down so that one end of the tile-lifting plate 22 connects to the tile outlet 112, and the tile-pushing head pushes the mahjong tiles onto the tile-lifting plate 22. The swinging up of the tile-lifting plate 22 lifts the mahjong tiles onto the table of the automatic mahjong machine, so that the tile-lifting plate 22 is in the tile-lifting state.

[0088] In this embodiment, the tile-raising bracket 21 and the tile-pushing bracket 100 are connected to form a single unit. In other embodiments, the tile-raising bracket 21 and the tile-pushing bracket 100 can be set separately and installed on the automatic mahjong machine respectively.

[0089] The card-pushing mechanism 10 also includes a card-pushing motor 12 and a drive gear 500. The drive gear 500 is driven by the card-pushing motor 12. The card-pushing wheel 200 has several teeth arranged circumferentially. The drive gear 500 meshes with the card-pushing wheel 200, so that the operation of the card-pushing motor 12 can drive the card-pushing wheel 200 to rotate. The rotation of the card-pushing wheel 200 drives the card-pushing head to push the mahjong tiles in the card-pushing slot 110. In the receiving state, one end of the card-lifting plate 22 swings down and connects to the card-dispensing port 112. The card-pushing head pushes the mahjong tiles to the card-lifting plate 22. In the lifting state, one end of the card-lifting plate 22 swings up and lifts the mahjong tiles onto the table of the automatic mahjong machine.

[0090] In one embodiment, the tilting tile-dispensing device of the automatic mahjong machine based on the foregoing embodiments, such as Figure 5 , Figures 10 to 13 As shown, the push wheel 200 is constructed as an incomplete gear that intermittently meshes with the drive gear 500. The drive gear 500 is provided with a synchronously rotating first positioning block 510, which has a convex arc surface 511. The push wheel is provided with a synchronously rotating second positioning block 220, which has a concave arc surface 221. The convex arc surface 511 and the concave arc surface 221 are engaged to lock the push wheel 200 in the non-engaged state.

[0091] When the tile-lifting plate 22 is in the receiving state, the tile-pushing mechanism 10 pushes the mahjong tiles onto the tile-lifting plate 22. At this time, the tile-pushing wheel 200 and the drive gear 500 are in a non-meshing state and stop pushing the tiles. At this time, the mahjong tiles on the inclined tile-lifting plate 22 have a tendency to slide down. The tile-pushing head needs to hold the mahjong tiles in place to prevent them from sliding down. Subsequently, the tile-lifting plate 22 lifts the tiles. During the tile-lifting process, the tile-pushing head still needs to hold the mahjong tiles in place to prevent them from sliding down and leaving their original position and colliding with the table of the automatic mahjong machine.

[0092] Through the convex-convex engagement of the convex arc surface 511 and the concave arc surface 221 on the first positioning block 510 and the second positioning block 220, the convex arc surface 511 blocks the rotation path of the concave arc surface 221, thus restricting the rotation of the concave arc surface 221. The downward force of the mahjong tile cannot cause the pusher gear to rotate. The convex-convex engagement of the convex arc surface 511 and the concave arc surface 221 locks the pusher gear in a non-meshing state, so the pusher head cannot move backward, thereby preventing the mahjong tile from sliding down.

[0093] In the convex-convex fit between the convex surface 511 and the concave surface 221, there is no gap between them. The drive gear 500 rotates relative to the push gear with friction. In this way, in the non-meshing state, the convex surface 511 can completely lock the concave surface 221, preventing the push wheel from rotating. However, due to machining accuracy and assembly errors, the convex surface 511 and the concave surface 221 inevitably have gaps in at least some positions. But these gaps do not affect the locking of the convex surface 511 to the concave surface 221.

[0094] Because of the convex arc surface 511 on the drive gear 500 and the concave arc surface 221 on the push gear, the drive gear 500 locks the push gear, thereby preventing the push head from being pushed by the downward force of the mahjong tiles during the tile raising process. However, if the drive gear 500 and the push gear are always in a meshed state, the convex arc surface 511 and the concave arc surface 221 cannot be screwed into their meshing position together. Therefore, the drive gear 500 and the push gear are set to mesh intermittently.

[0095] When the drive gear 500 and the push gear are just disengaged or about to engage, the convex arc surface 511 and the concave arc surface 221 are in contact but not yet in a convex-concave engagement state. The continued rotation of the drive gear 500 causes the convex arc surface 511 to act on the concave arc surface 221, driving the push gear to continue rotating. At this time, the speed of the push gear is less than the speed in the engaged state, and the convex arc surface 511 and the concave arc surface 221 gradually enter the convex-concave engagement state. After the convex arc surface 511 and the concave arc surface 221 enter the convex-concave engagement state, the push gear stops rotating. In the convex-concave engagement state, the arc surfaces of the convex arc surface 511 and the concave arc surface 221 are concentric. The convex arc surface 511 can rotate relative to the concave arc surface 221 around its own center, but the concave arc surface 221 cannot rotate around its own center and is thus locked by the convex arc surface 511.

[0096] The tilting tile-feeding device of this utility model uses the intermittent meshing transmission of the drive gear 500 and the push gear in the push mechanism 10. In the non-meshing state, the drive gear 500 and the push gear are locked by the convex and concave surface 221 of the convex arc surface 511, which prevents the push component from moving backward under the downward force of the mahjong tiles. This allows the push component to hold the mahjong tiles in place during the tile-lifting plate 22, reducing the downward range of the mahjong tiles on the tile-lifting plate 22, thereby improving the reliability and stability of the tilting tile-feeding device in lifting the mahjong tiles.

[0097] In one embodiment, the tilting tile-dispensing device of the automatic mahjong machine based on the foregoing embodiments, such as Figure 5 , Figures 10 to 13 As shown, the drive gear 500 is provided with a large convex tooth 521, and the push wheel 200 includes a toothed part 230 and a toothless part 240. The drive gear 500 rotates relative to the toothless part 240 to disengage the push wheel 200 and the drive gear 500. The toothless part 240 is provided with a lever 241. The large convex tooth 521 moves the lever 241 to make the push wheel 200 in the non-engaged state re-engage with the drive gear 500.

[0098] The drive gear 500 is provided with a plurality of first teeth 520 in the circumferential direction, wherein two adjacent first teeth 520 extend and connect in a direction away from the rotation axis of the drive gear 500 to form a large convex tooth 521.

[0099] With the above settings, the rotation of the drive gear 500 can cause the drive gear 500 and the push gear to return from a non-meshing state to a meshing state, simplifying the transmission structure between the drive gear 500 and the push gear.

[0100] In one embodiment, the tile-pushing mechanism 10 of the automatic mahjong machine based on the foregoing embodiment, such as Figure 5 , Figures 10 to 13 As shown, the toothed portion 230 is provided with a clearance groove 232 that mates with the large protruding tooth 521.

[0101] The toothed portion 230 of the pusher wheel 200 is composed of multiple sequentially arranged second teeth 231, with a clearance groove 232 formed between two second teeth 231 to avoid interference with the large protruding tooth 521. During the meshing and rotation of the toothed portion 230 of the drive gear 500 and the pusher wheel 200, the large protruding tooth 521 enters the clearance groove 232 to avoid interference between the large protruding tooth 521 and the second teeth 231. At the same time, the large protruding tooth 521 acts on the second teeth 231 on one side of the clearance groove 232, so that the drive gear 500 and the pusher wheel 200 remain in a meshed state during the meshing and rotation of the toothed portion 230 of the drive gear 500 and the pusher wheel 200.

[0102] With the above-mentioned configuration, interference between the large convex tooth 521 and the toothed portion 230 of the drive gear 500 and the push wheel 200 can be avoided during the meshing process. Furthermore, the cooperation between the large convex tooth 521 and the clearance groove 232 ensures that the drive gear 500 and the toothed portion 230 of the push wheel 200 remain meshed throughout the meshing process, thereby improving the reliability of the meshing transmission between the drive gear 500 and the push wheel 200.

[0103] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. The tile-pushing mechanism of an automatic mahjong machine, characterized in that, include: The tile pusher bracket is equipped with a mounting column and a tile pusher slot for storing mahjong tiles. The tile pusher slot includes a tile inlet and a tile outlet, and has an arc-shaped curved structure with a bending angle greater than 180° from the tile inlet to the tile outlet. The card-pushing wheel rotates relative to the card-pushing bracket. The card-pushing arm rotates in tandem with the card-pushing wheel; as well as A positioning component is sleeved with the mounting post and detachably fixed to the mounting post. The end of the positioning component facing away from the card pusher bracket has a flange extending radially outward. The card pusher wheel and the card pusher arm seat are rotatably connected to the positioning component from bottom to top. The card pusher wheel and the card pusher arm seat are limited between the flange and the card pusher bracket.

2. The tile-pushing mechanism of the automatic mahjong machine as described in claim 1, characterized in that, The positioning component is provided with a socket hole, and the mounting post is sleeved in the socket hole. A limiting piece is provided at the end of the socket hole away from the push card bracket, and the limiting piece limits the depth of the socket hole.

3. The tile-pushing mechanism of the automatic mahjong machine as described in claim 2, characterized in that, One of the mounting post and the limiting piece is provided with a positioning post, and the other is provided with a positioning groove. The mounting post and the positioning piece are positioned and engaged through the positioning post and the positioning groove.

4. The tile-pushing mechanism of the automatic mahjong machine as described in claim 2, characterized in that, The mounting post is provided with a mounting hole, and the limiting piece is provided with a through hole opposite to the mounting hole. The screw passes through the through hole and is screwed into the mounting hole to fix the positioning member to the mounting post.

5. The tile-pushing mechanism of the automatic mahjong machine as described in claim 1, characterized in that, A washer is also fitted on the mounting post. The washer is located between the card pusher bracket and the card pusher wheel. The end of the card pusher wheel near the card pusher bracket has an annular groove for accommodating the washer.

6. The tile-pushing mechanism of the automatic mahjong machine as described in claim 5, characterized in that, One of the washer and the mounting post is provided with a limiting groove, and the other is provided with a corresponding limiting protrusion. The limiting protrusion and the limiting groove cooperate to restrict the rotation of the washer relative to the mounting post.

7. The tile-pushing mechanism of the automatic mahjong machine as described in claim 1, characterized in that, The pusher arm seat has a protrusion on the side facing the pusher wheel. The pusher wheel has a storage groove to accommodate the protrusion. The shape of the storage groove matches the shape of the protrusion. The pusher arm seat also has a mounting part extending into the pusher groove. A reinforcing rib connects the mounting part and the protrusion. The groove wall of the storage groove has a notch to limit the reinforcing rib.

8. A tilting tile-loading device for an automatic mahjong machine, characterized in that, The device includes a card-lifting mechanism and a card-pushing mechanism as described in any one of claims 1 to 7. The card-lifting mechanism includes a card-lifting motor and a card-lifting plate. The card-lifting motor drives the card-lifting plate to swing and rise. The card-pushing mechanism further includes a card-pushing motor and a drive gear. The drive gear is driven by the card-pushing motor. The card-pushing wheel has a plurality of teeth circumferentially arranged. The card-pushing wheel is constructed as an incomplete gear and intermittently meshes with the drive gear. The drive gear is provided with a synchronously rotating first positioning block. The first positioning block has a convex arc surface. The card-pushing wheel is provided with a synchronously rotating second positioning block. The second positioning block has a concave arc surface. The convex arc surface and the concave arc surface are engaged to lock the card-pushing wheel in a non-engaged state.

9. The tilting tile-loading device of the automatic mahjong machine as described in claim 8, characterized in that, The drive gear is also provided with a large convex tooth. The push wheel includes a toothed part and a toothless part. The drive gear rotates relative to the toothless part to disengage the push wheel and the drive gear. The toothless part is provided with a paddle block. The large convex tooth moves the paddle block to make the push wheel in the non-engaged state re-engage with the drive gear.

10. The tilting tile-loading device of the automatic mahjong machine as described in claim 9, characterized in that, The toothed portion is provided with a clearance groove that mates with the large convex tooth.

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