Automatic mahjong machine capable of feeding mahjong tiles obliquely

Abstract

The invention discloses an automatic mahjong machine with an inclined tile feeding function. The problem that in the prior art, an automatic mahjong machine with an inclined tile feeding function is prone to tile falling in the tile lifting process is solved. The automatic mahjong machine comprises a table top and a tile lifting plate, the table top is provided with a tile lifting opening, the tile lifting plate swings and ascends and descends between a standby position where the tile lifting opening is closed and a tile lifting position where the tile lifting opening is opened relative to the table top, and the tile lifting plate comprises a tile inlet end and a tile outlet end. Mahjong tiles are pushed and lifted to the table top from the tile inlet end to the tile outlet end along the tile lifting plate at the tile lifting position, the tile lifting plate comprises a tile pushing guide face and a boss, the tile pushing guide face straightly extends from the tile inlet end to the tile outlet end, the boss is arranged close to the tile outlet end and protrudes out of the tile pushing guide face, and the mahjong tiles climb over the boss and are pushed and lifted to the table top in the tile lifting process. The boss is provided with a slow descending slope surface, the tile lifting plate is provided with a tile lifting highest point in the thickness direction, the tile lifting highest point is located on the slow descending slope surface, and the slope of the slow descending slope surface is gradually reduced in the tile pushing direction.

Description

Technical Field

[0001] The present invention relates to the field of automatic mahjong machines, in particular to an automatic mahjong machine with inclined tile loading. Background Art

[0002] An automatic mahjong machine with tilted tile loading consists of a tabletop and a lifting mechanism. The lifting mechanism includes a lifting bracket, a push trough, a push component, and a lifting plate. The lifting plate is rotatably connected to the lifting bracket and swings up and down. The tabletop is provided with a lifting opening that matches the lifting plate. Shuffled mahjong tiles are placed in the push trough. The lifting plate swings down to engage the push trough. The push component pushes the tile pile in the push trough onto the lifting plate, which then swings up and raises the tile pile onto the tabletop.

[0003] The front mahjong tiles are pushed by the back mahjong tiles and fall from the lifting board to the table. In the process of falling to the table, the mahjong tiles rotate with the highest point of the lifting board as the fulcrum. Due to the tilt of the lifting board, there is a certain angle α between the mahjong tiles and the table. The angle α increases the potential energy generated by the falling mahjong tiles, making the mahjong tiles on the top of the pile easy to fall. Figure 13 , and the Chinese utility model patent with publication number CN205145580U and name "Fully Automatic Mahjong Machine".

[0004] In the prior art, in order to avoid the tiles from falling, the above technical solution has been improved. For details, please refer to the Chinese invention patent application with publication number CN109011552A, entitled "A Fully Automatic Mahjong Machine". By providing a guide surface with rounded or beveled transition at the rear end of the tile lifting plate, the transition of the mahjong tiles from the tile lifting plate to the table surface is smoother.

[0005] This improvement reduces the speed at which mahjong tiles rotate and fall onto the table from the rear end of the lifting board, and reduces the probability of the tiles on the upper part of the pile falling off the lifting board. However, due to the rounded or beveled transition of the guide surface at the rear end of the lifting board, the height of the highest point of the rear end of the lifting board during the lifting process is reduced, and the height difference between the rear end of the lifting board and the upper edge of the table during the lifting process is increased, which increases the angle β when the tiles are supported by the edge of the lifting port and the lifting board at the same time. The increased angle β increases the potential energy of the tiles, making it easy for the tiles on the upper part of the pile to fall off when they are separated from the lifting board and fall onto the table. For details, please refer to the attached Figure 14 . Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, the present invention proposes an automatic mahjong machine with tilted tile loading, so as to solve the problem that the automatic mahjong machine with tilted tile loading in the prior art is prone to dropping tiles during the tile loading process.

[0007] In order to achieve the above technical objectives, the present invention proposes an automatic mahjong machine with tilted card lifting, including a table top and a card lifting plate, the table top has a card lifting port, the card lifting plate swings and rises relative to the table top between a standby position with the card lifting port closed and a card lifting position with the card lifting port opened, the card lifting plate includes a card feed end and a card discharge end, the mahjong tiles are pushed up to the table top from the card feed end to the card discharge end along the card lifting plate in the card lifting position, the card lifting plate includes a card pushing guide surface and a boss, the card pushing guide surface is straight from the card feed end to the card discharge end The extension is provided near the card-discharging end and protrudes from the plane where the card-pushing guide surface is located. During the card-raising process, the mahjong tiles pushed along the card-pushing guide surface climb over the boss and are pushed to the table surface. The boss has a slowly descending slope. The card-raising plate has a highest point for card-raising in the thickness direction. The highest point for card-raising is located on the slowly descending slope. The slope of the slowly descending slope gradually decreases along the card-pushing direction, so that the contact part between the bottom surface of the mahjong tile and the slowly descending slope continues to move forward along the card-pushing direction during the process of the mahjong tile climbing over the boss.

[0008] The automatic mahjong machine of the present invention has a slow-down slope that can continuously move forward its support position for the mahjong tiles as the tiles rotate. As the tiles are pushed and move forward, the slow-down slope can continuously or repeatedly support the tiles and play a slow-down effect on the rotation of the tiles (that is, in the process of the tiles rotating and falling from the lifting plate to the table surface, the tiles undergo multiple "contact-disconnection" processes with the slow-down slope, so that the kinetic energy of the tiles falling is consumed in stages). This reduces the speed of the tiles caused by the rotation and fall, so that the speed of the tiles when they contact the table surface is relatively low, and the reaction force of the table surface on the tiles is also relatively small, thereby reducing the probability of the tiles at the top of the first pile falling during the lifting process. The mahjong tiles are lifted up onto the table surface by the raised platform, so that the rear of the tiles is lifted up when supported by the lifting opening and the lifting plate, thereby reducing the angle between the tiles and the table surface. This reduces the potential energy of the tiles when they are pushed off the lifting plate and fall onto the table surface, and reduces the speed of the tiles when they fully contact the table surface. Finally, since the speed at which the mahjong tiles fall onto the table is relatively low, on the one hand, the risk of the tiles sliding on the table scratching the velvet layer of the table is reduced; on the other hand, the friction between the velvet layer of the table and the mahjong tiles can quickly stop the first pile of mahjong tiles, and there is no need to set magnets in the table to stop the mahjong tiles, thereby reducing costs.

[0009] Preferably, the side of the boss facing the card pushing guide surface forms a card receiving side, and the card receiving side is provided with an ascending slope connecting the card pushing guide surface and the slowly descending slope, and the mahjong tiles are pushed up to the slowly descending slope along the ascending slope.

[0010] The above technical solution is adopted, by providing an ascending slope, so that the upper mahjong tiles in the latter pile support the mahjong tiles in the previous pile a little further back than the lower mahjong tiles support the mahjong tiles in the previous pile. The upper mahjong tiles in the previous pile support the upper mahjong tiles in the latter pile, so that the upper mahjong tiles in the mahjong tiles that are about to be pushed off the tile raising board can be staggered a little further back in the pushing direction relative to the lower mahjong tiles. It is precisely this staggered distance that increases the distance that the upper mahjong tiles need to slide forward and fall off the lower mahjong tiles, thereby increasing the difficulty of the upper mahjong tiles in the first pile falling off the lower mahjong tiles, and further reducing the probability of tiles falling during the automatic tile raising process.

[0011] Preferably, the position where the rising slope connects with the card-pushing guide surface constitutes a rising starting point, and the straight-line distance between the rising starting point and the highest point of the card raising is less than the width of a mahjong tile.

[0012] By adopting the above technical solution, when the previous pile of mahjong tiles is about to be pushed off the tile raising board, the next pile of mahjong tiles can support the previous pile of mahjong tiles at a higher angle on the rising slope, further increasing the staggered distance between the upper and lower mahjong tiles in the previous pile of mahjong tiles.

[0013] Preferably, the width of a mahjong tile is W, the angle between the mahjong tile supported on the table top and the tile raising board and the table top is β, the straight-line distance between the highest point of the tile raising and the tile pushing guide surface in the thickness direction of the tile raising board is H, and tanβ>H / W.

[0014] By adopting the above technical solution, it is ensured that the corners of the mahjong tiles of the previous pile are supported on the sides of the mahjong tiles of the next pile, thereby ensuring that the mahjong tiles at the top of the mahjong tiles that are about to be pushed off the lifting board can be staggered a little further backward in the pushing direction relative to the mahjong tiles at the bottom.

[0015] Preferably, the side of the boss facing away from the card pushing guide surface forms a card backing side, and the card backing side is provided with a descending slope, the descending slope is formed by one end of the slowly descending slope extending along the card pushing direction, and one end of the descending slope is connected to the card discharging end; During the tile raising process, there is a gap between the descending slope and the mahjong tiles supported on the table top and the tile raising board, and the maximum value of the gap in the vertical direction is less than 3 mm.

[0016] By adopting the above-mentioned technical solution, the back-card side of the boss is connected and transitioned by a descending slope. When the card-raising board is in the standby position, the mahjong tiles on the card-raising board near the card-raising mouth will be arranged according to the shape of the descending slope. The descending slope can make the arrangement of the mahjong tiles more orderly. At the same time, by limiting the gap between the descending slope of the card-raising board and the mahjong tiles during the card-raising process, the difference between the descending slope and the card-raising mouth when the card-raising board is in the standby position can be reduced, so that the mahjong tiles on the table can be arranged more orderly.

[0017] Preferably, during the card raising process, the mahjong tiles are pushed away from the card raising board with the support of the table top and the slowly descending slope, the mahjong tile support position on the slowly descending slope forms a card pushing support part, the starting point of the slowly descending slope along the card pushing direction is the slowly descending starting point, and the card pushing support part is higher than the slowly descending starting point in the vertical direction.

[0018] The above technical solution is adopted to ensure that the slow-down slope has a sufficient slow-down effect on the mahjong tiles, reduce the speed of the mahjong tiles rotating and falling on the table, and reduce the probability of the mahjong tiles falling.

[0019] Preferably, during the card raising process, the card pushing support portion is not higher than the upper surface of the table in the vertical direction.

[0020] By adopting the above technical solution, the mahjong tiles supported by the table top and the card pushing support will not be tilted toward one side of the table top, thereby avoiding the tendency of the mahjong tiles to slide forward when they rotate and fall to be supported by both the table top and the card pushing support, thereby reducing the probability of the mahjong tiles falling at this stage.

[0021] Preferably, the descending slope is provided with a descending surface and a supporting plane along the card pushing direction, the slope of the descending surface gradually decreases along the card pushing direction, the supporting plane extends from one end of the descending surface along the card pushing direction, and the mahjong tiles are pushed away from the card raising board under the support of the table top and the supporting plane, and the card pushing support part is the supporting plane.

[0022] By adopting the above-mentioned technical solution, the inclination angle of the supporting plane is the same as the inclination angle when the mahjong tiles are pushed away from the tile raising plate. When the mahjong tiles rotate and fall onto the table surface, one end of the mahjong tiles is supported on the table surface and the other end is supported on the supporting plane. The supporting plane increases the absorption area of the tile raising plate for the impact force of the rotating and falling mahjong tiles. On the one hand, it reduces the impact force on the table surface and the reaction force of the table surface on the mahjong tiles. On the other hand, it also disperses the reaction force of the supporting plane on the mahjong tiles, reducing the bouncing of the mahjong tiles caused by the reaction force, thereby greatly reducing the probability of mahjong tiles falling.

[0023] Preferably, the slowly descending slope is an outward convex arc surface, and the slope of the tangent direction of the outward convex arc surface gradually decreases along the card pushing direction; or, The slowly descending slope is composed of at least two planes, and the slopes of the at least two planes gradually decrease along the direction of pushing the cards; or, the slowly descending slope is composed of at least one plane and at least one convex arc surface, and the slopes of the at least one plane and the at least one convex arc surface gradually decrease along the direction of pushing the cards.

[0024] By adopting the above-mentioned technical solution, the slow-descent slope can continuously or multiple times support the mahjong tiles at the end of the raising board during the rotation and falling process, thereby reducing the speed of the mahjong tiles generated by the rotation and falling, and further reducing the reaction force of the table top on the mahjong tiles, reducing the probability of the mahjong tiles at the top of the first pile of mahjong tiles falling during the raising process.

[0025] Preferably, the gently descending slope extends along the width direction of the lifting board.

[0026] By adopting the above-mentioned technical solution, the descending slope extends along the width direction of the lifting board, which increases the supporting area of the descending slope for the mahjong tiles, improves the stability of the mahjong tiles moving on the descending slope, and also helps to improve the descending effect of the descending slope on the mahjong tiles.

[0027] Preferably, the ascending slope extends along the width direction of the ascending plate.

[0028] By adopting the above technical solution, the ascending slope extends along the width direction of the tile raising board, which increases the supporting area of the ascending slope for the mahjong tiles and improves the stability of the mahjong tiles moving on the ascending slope.

[0029] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the table top and lifting mechanism of the automatic mahjong machine in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 A cross-sectional view of the card-raising plate in the card-raising state according to an embodiment of the present invention; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 Schematic diagram of a mahjong tile about to be pushed off the raising board, the raising board, and the tabletop in an embodiment of the present invention; Figure 6 Schematic diagram of mahjong tiles about to rotate and fall from the raising board, the raising board, and the tabletop in an embodiment of the present invention; Figure 7 Schematic diagram of mahjong tiles supported by a tile-lifting plate and a table top, and the tile-lifting plate and table top according to an embodiment of the present invention; Figure 8 For mahjong tiles Figure 6 and Figure 7 A schematic diagram of an intermediate state; Figure 9 This is an enlarged schematic diagram of the local position of the lifting board; Figure 10 Another schematic diagram of a mahjong tile about to be pushed off the raising board, the raising board, and the tabletop in an embodiment of the present invention; Figure 11 for Figure 10 Schematic diagram of the Zhongsheng brand board; Figure 12 Another schematic diagram of the lifting board in the standby position; Figure 13 A schematic diagram of a prior art tile raising board and mahjong tile piles in a tile pushing state; Figure 14 The figure is a schematic diagram of another prior art Mahjong tile raising board and mahjong tile pile in the pushing state.

[0031] Reference numerals: 100, table, 110, rising card mouth; 200, push-up mechanism, 210, push-up bracket, 220, push-card slot; 300, card raising plate, 301, rotation connection point, 302, card feeding end, 303, card discharging end, 304, card pushing guide surface, 305, highest point of card raising, 310, boss, 311, card facing side, 312, card back side, 313, ascending slope, 3131, ascending starting point, 314, descending slope, 3141, descending starting point, 3142, descending surface, 3143, supporting plane, 3144, card pushing support portion, 3145, top surface, 315, descending slope; 400. Mahjong tiles. DETAILED DESCRIPTION

[0032] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" or "several" means two or more, unless otherwise explicitly specified.

[0035] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] refer to Figure 13 In the prior art, due to the inclined setting of the tile raising plate 300, there is a certain inclination angle β between the mahjong tile pile 400 and the table surface 100. When the mahjong tile pile 400 falls from the tile raising plate 300, it has a large potential energy, which makes the mahjong tiles on the top of the pile easy to fall off.

[0037] refer to Figure 14 In another prior art, the lifting board 300 is also tilted. Since the rear end of the lifting board 300 is provided with a rounded corner or chamfer, the height difference between the rear end of the lifting board 300 and the upper edge of the table top 100 is increased, so that the inclination angle α of the mahjong tile pile 400 supported by the edge of the lifting opening 110 and the rear end of the lifting board 300 is larger. The larger inclination angle α increases the potential energy of the mahjong tile pile 400, causing the mahjong tiles on the upper part of the tile pile 400 to fall easily when the mahjong tile pile 400 separates from the lifting board 300 and falls on the table top 100.

[0038] like Figures 1 to 9As shown, the automatic mahjong machine with inclined card loading proposed in an embodiment of the present invention includes a table top 100 and a card raising plate 300. The table top 100 has a card raising port 110. The card raising plate 300 swings and rises relative to the table top 100 between a standby position with the card raising port 110 closed and a card raising position with the card raising port 110 open. The card raising plate 300 includes a card input end 302 and a card output end 303. The mahjong tiles 400 are pushed up to the table top 100 from the card input end 302 toward the card output end 303 along the card raising plate 300 in the card raising position.

[0039] Specifically, the automatic mahjong machine further includes a lifting mechanism 200, which includes a lifting bracket 210 and a push-pull slot 220. The push-pull slot 220 is used to store shuffled mahjong tiles 400. A lifting plate 300 is rotatably connected to the lifting bracket 210 and swings up and down about a pivot point 301. The lifting plate 300 swings up to close the lifting port 110, and swings down to open the lifting port 110. When the lifting plate 300 is in the lifting position, one end of the lifting plate 300 engages the push-pull slot 220, and the mahjong tiles 400 are pushed out of the lifting port 110 by the lifting plate 300 and onto the table 100.

[0040] The lifting mechanism 200 of this embodiment can be referenced in Chinese Invention Patent Application No. CN115721922A, entitled "Driving Device for Mahjong Machine Lifting Mechanism 200," "Mahjong Machine Lifting Mechanism 200," and "Mahjong Machine." In this embodiment, the lifting mechanism 200 is provided in four groups, each of which is independent of the other and does not intersect.

[0041] The push-card slot 220 of this embodiment includes a card inlet and a card outlet, and is curved at an angle greater than 180° from the inlet to the outlet. In this embodiment, four push-card slots 220 are provided, located at the four corners of the mahjong machine. The four push-card slots 220 are independent of each other and do not intersect. For details, please refer to the Chinese invention patent application entitled "Fast-Accelerating Mahjong Pushing Device for Mahjong Machines and Mahjong Machines Thereof," published as CN109011550A.

[0042] In other embodiments, the push-card slot 220 may also be configured to include a card inlet and a card outlet, with the card inlet and the card outlet forming an arc with a curvature angle of less than or equal to 180°. Specifically, four push-card slots 220 are provided, and the four push-card slots 220 are arranged in a windmill shape. For details, please refer to the Chinese utility model patent publication number CN205340092U, entitled "Fully Automatic Mahjong Machine."

[0043] Two mahjong tiles 400 in the pusher slot 220 are stacked up and down to form a pile. The pile of mahjong tiles 400 is pushed up to the tabletop 100 through the lifting plate 300 and the lifting port 110 .

[0044] In this embodiment, the tile raising plate 300 includes a tile pushing guide surface 304 and a boss 310 protruding from the tile pushing guide surface 304. During the tile raising process, the mahjong tile 400 pushed along the tile pushing guide surface 304 climbs over the boss 310 and is pushed onto the table surface 100. The boss 310 has a gently descending slope 314. The tile raising plate 300 has a highest point 305 for tile raising in the thickness direction. The highest point 305 for tile raising is located on the gently descending slope 314. The slope of the gently descending slope 314 gradually decreases along the tile pushing direction, so that the contact point between the bottom surface 401 of the tile and the gently descending slope 314 continues to move forward in the tile pushing direction as the tile 400 climbs over the boss 310.

[0045] The contact portion between the bottom surface 401 of the mahjong tile and the gently descending slope 314 continuously moves forward along the pushing direction, which means that the gently descending slope 314 can continuously move forward its supporting position for the mahjong tile 400 as the mahjong tile 400 rotates.

[0046] In the prior art, when a mahjong tile 400 is lifted until its center of gravity is about to pass the highest point of the lifting plate 300, an angle α is formed between the tile 400 and the table surface 100. The tile 400 then rotates and falls from the lifting plate 300 until one end of the tile 400 lands on the table surface 100 and the other end is supported by the lifting plate 300. At this point, an angle β is formed between the tile 400 and the table surface 100. As the tile 400 rotates and falls from the lifting plate 300, the angle between the tile 400 and the table surface 100 gradually decreases from α to β, causing the rotational speed of the tile 400 to gradually increase, reaching its maximum when one end of the tile 400 contacts the table surface 100. The high speed of the mahjong tiles 400 causes the table 100 to generate a large reaction force on the mahjong tiles 400. Since the mahjong tiles 400 are stacked up and down to form a pile, this reaction force causes the mahjong tiles 400 at the top of the first pile to fall easily. For details, please refer to the Chinese utility model patent with publication number CN205145580U, entitled "Fully Automatic Mahjong Machine", and the attached Figure 13 .

[0047] In subsequent improvements, by providing a guide surface with rounded corners or beveled transitions at the rear end of the lifting board, the transition of mahjong tiles from the lifting board to the table surface is made smoother. However, due to the guide surface with rounded corners or beveled transitions at the rear end of the lifting board, the height of the highest point of the rear end of the lifting board during the lifting process is reduced, the height difference between the rear end of the lifting board and the upper edge of the table surface during the lifting process is increased, and the angle β when the mahjong tiles are supported by the edge of the lifting port and the lifting board at the same time is increased. For details, please refer to the Chinese invention patent application with publication number CN109011552A, entitled "A Fully Automatic Mahjong Machine", and the attached Figure 14 .

[0048] The automatic mahjong machine of this embodiment, referring to Figures 6 to 9During the process of the mahjong tile 400 rotating and falling from the tile raising plate 300, that is, the process in which the angle between the mahjong tile 400 and the table surface 100 changes from α to β, the mahjong tile 400 is supported by the descending slope 314 and slowly descends to the table surface 100. In addition, since the mahjong tile 400 is pushed up to the table surface 100 by climbing over the boss 310, the height of the mahjong tile 400 in the vertical direction is raised. When the mahjong tile 400 is supported by the table surface 100 and the tile raising plate 300 at the same time, the rear part of the mahjong tile 400 is raised, so that the angle β can be reduced.

[0049] In the automatic mahjong machine with inclined tile loading of the present invention, as the mahjong tiles 400 on the tile lifting plate 300 rotate and fall, the tilt angle of the mahjong tiles 400 gradually decreases, causing the center of gravity of the mahjong tiles 400 to move forward, and the slope of the slowly descending slope 314 in the pushing direction gradually decreases, so that the slowly descending slope 314 can continuously move forward its supporting position for the mahjong tiles 400 as the mahjong tiles 400 rotate. As the mahjong tiles 400 are pushed and move forward, the slowly descending slope 314 can continuously or repeatedly support the mahjong tiles 400 and play a role in the rotation of the mahjong tiles 400. The slow-descent effect (i.e., during the process of the mahjong tile 400 rotating and falling from the tile raising plate 300 to the table surface 100, the mahjong tile 400 undergoes multiple "contact-disconnection" processes with the slow-descent slope 314, so that the falling kinetic energy of the mahjong tile 400 is consumed in stages) reduces the speed of the mahjong tile 400 generated by the rotation and fall, so that the speed of the mahjong tile 400 when it contacts the table surface 100 is relatively small, and the reaction force of the table surface 100 on the mahjong tile 400 is also relatively small, thereby reducing the probability of the mahjong tile 400 at the top of the first pile of mahjong tiles 400 falling during the tile raising process.

[0050] At the same time, the mahjong tile 400 climbs over the boss 310 and is pushed up to the table surface. When the mahjong tile 400 is supported by the lifting port 110 and the lifting plate 300 at the same time, the rear portion of the mahjong tile 400 is lifted, so that the angle (i.e., angle β) between the mahjong tile 400 and the table surface 100 is reduced at this time, thereby reducing the potential energy of the mahjong tile 400 when it is pushed away from the lifting plate 300 and falls on the table surface 100, and reducing the speed of the mahjong tile 400 when it completely contacts the table surface 100.

[0051] Finally, since the speed at which the mahjong tiles 400 fall onto the table top 100 is relatively low, on the one hand, the risk of the mahjong tiles 400 sliding on the table top 100 scratching the velvet layer of the table top 100 is reduced. On the other hand, the friction between the velvet layer of the table top 100 and the mahjong tiles 400 can quickly stop the first pile of mahjong tiles 400, and there is no need to set a magnet in the table top 100 for stopping the mahjong tiles 400, thereby reducing costs.

[0052] In this embodiment, both the tabletop 100 and the card-lifting plate 300 are provided with a card-supporting layer, which is usually made of a flexible material, such as a velvet layer.

[0053] Based on the above embodiments, in one embodiment, the specific structure of the gently descending slope 314 is described. In this embodiment, the gently descending slope 314 is an outward convex arc surface, and the slope of the tangent direction of the outward convex arc surface gradually decreases.

[0054] In this way, the descending slope 314 can continuously support the descending of the mahjong tiles 400 at the end of the raising plate 300 during the rotation and falling process, thereby reducing the speed of the mahjong tiles 400 generated by the rotation and falling, and further reducing the reaction force of the table top 100 on the mahjong tiles 400, reducing the probability of the mahjong tiles 400 at the top of the first pile of mahjong tiles 400 falling during the raising process.

[0055] In another embodiment, regarding the specific structure of the gently descending slope 314, based on the aforementioned embodiment, in this embodiment, the gently descending slope 314 is composed of at least two planes, and the slopes of the at least two planes gradually decrease along the card pushing direction.

[0056] In some other embodiments, the descending slope 314 is composed of at least one plane and at least one convex arc surface, and the slope of the at least one plane and the at least one convex arc surface gradually decreases in the card pushing direction.

[0057] In this way, the descending slope 314 can provide multiple descending supports to the end mahjong tiles 400 of the raising plate 300 during the process of rotating and falling, thereby reducing the speed of the mahjong tiles 400 caused by rotating and falling, and further reducing the reaction force of the table top 100 on the mahjong tiles 400, and reducing the probability of the upper mahjong tiles 400 in the first pile of mahjong tiles 400 falling during the raising process.

[0058] Based on the above embodiments, Figures 3 to 9 As shown, in one embodiment, the side of the boss 310 facing the card pushing guide surface 304 forms a card receiving side 311, and the card receiving side 311 is provided with an ascending slope 313 connecting the card pushing guide surface 304 and the descending slope 314. The mahjong tiles 400 are pushed up along the ascending slope 313 to the descending slope 314.

[0059] During the lifting process, the next pile of mahjong tiles 400 pushes the previous pile of mahjong tiles 400 to climb over the descending slope 314. When the previous pile of mahjong tiles 400 is about to be pushed off the lifting plate 300, the next pile of mahjong tiles 400 moves toward the climbing boss 310, and the position of the next pile of mahjong tiles 400 is lower than that of the previous pile of mahjong tiles 400. The corners of the previous pile of mahjong tiles 400 are supported on the sides of the next pile of mahjong tiles 400. Since the mahjong tiles 400 of the second pile have a certain tilt angle relative to the first pile, the distance between the upper and lower mahjong tiles 400 of the second pile in the height direction of the mahjong tiles 400 of the first pile is equal to the cosine value of the tilt angle between the two piles multiplied by the height of one mahjong tile 400. Therefore, the supporting position of the upper mahjong tile 400 of the first pile on the upper mahjong tiles 400 of the second pile is higher than the supporting position of the lower mahjong tile 400 of the first pile on the lower mahjong tiles 400 of the second pile, and there is a difference between the two supporting positions in the height direction of the mahjong tiles 400. Furthermore, since the mahjong tiles 400 of the second pile are in an inclined state and the corners of the mahjong tiles 400 of the first pile are supported on the sides of the mahjong tiles 400 of the second pile, the difference between the two supporting positions in the height direction of the mahjong tiles 400 results in the difference in the supporting positions of the upper and lower mahjong tiles 400, so that the upper mahjong tiles 400 of the first pile can be further staggered backward relative to the lower mahjong tiles 400 of the first pile.

[0060] The formula for calculating the further offset distance of the upper and lower mahjong tiles is: tanθ*Hm*(1-cosθ), where Hm is the height of a mahjong tile and θ is the angle between the previous mahjong tile 400 and the next mahjong tile 400.

[0061] The upper mahjong tile 400 in the next pile of mahjong tiles 400 is supported by the upper mahjong tile 400 in the previous pile, so that the upper mahjong tile 400 in the previous pile of mahjong tiles 400 is supported by the upper mahjong tile 400 in the next pile of mahjong tiles 400, so that the upper mahjong tile 400 in the next pile of mahjong tiles 400 that is about to be pushed away from the lifting plate 300 can be staggered a little further backward in the pushing direction relative to the lower mahjong tile 400. It is this staggered distance that increases the distance required for the upper mahjong tile 400 to slide forward and fall off the lower mahjong tile 400, thereby increasing the difficulty of the upper mahjong tile 400 in the first pile of mahjong tiles 400 falling from the lower mahjong tile 400, thereby reducing the probability of the automatic mahjong tile 400 falling during the lifting process.

[0062] In this embodiment, the descending slope 314 includes a top surface 3145 at the highest position of the card raising plate 300 in a direction perpendicular to the card pushing guide surface 304. The top surface 3145 is flat and has the same slope as the card pushing guide surface 304. The ascending slope 313 is connected to the top surface 3145. Any point on the top surface 3145 is the highest point of the card raising plate 300. The slope of the descending slope 314 gradually decreases along the card pushing direction from the end point of the top surface 3145.

[0063] In some other embodiments, the descending slope 314 may be directly connected to the ascending slope 313, and the connection position between the two constitutes the highest point 305 of the card raising plate 300 in the direction perpendicular to the card pushing guide surface 304.

[0064] In order to ensure that the corners of the previous mahjong tiles 400 are supported on the sides of the next mahjong tiles 400, based on the above embodiment, as Figure 5 、 Figure 7 As shown, in one embodiment, the angle between the mahjong tiles 400 on the ascending slope 313 and the push-pushing guide surface 304 is smaller than the angle between the mahjong tiles 400 supported on the tabletop 100 and the ascending plate 300 and the tabletop 100, thereby ensuring that the corners of the mahjong tiles 400 of the previous pile are supported on the sides of the mahjong tiles 400 of the next pile. Specifically, the width of a mahjong tile is W, the angle between the mahjong tiles 400 supported on the tabletop 100 and the ascending plate 300 and the tabletop 100 is β, and the straight-line distance between the highest point 305 of the ascending tile and the push-pushing guide surface 304 in the thickness direction of the ascending plate 300 is H, and tanhβ>H / W.

[0065] Taking the β angle as 3° and the width of a mahjong tile as 40 mm as an example, H is calculated to be less than 2.09 mm.

[0066] This arrangement ensures that the corners of the previous pile of mahjong tiles 400 are supported on the sides of the next pile of mahjong tiles 400, thereby ensuring that the upper mahjong tiles 400 among the mahjong tiles 400 that are about to be pushed away from the tile lifting plate 300 can be staggered a little further backward in the pushing direction relative to the lower mahjong tiles 400.

[0067] Based on the above embodiments, Figures 3 to 9 As shown, in one embodiment, the rising slope 313 is smoothly connected to the card pushing guide surface 304, and the rising slope 313 extends smoothly along the card pushing direction.

[0068] In this embodiment, the rising slope 313 includes a plane connected to the card pushing plane 304, and the two are in an arc transition at the connection position.

[0069] In some other embodiments, the rising slope 313 may also include an arc surface connected to the card pushing plane 304, and the two have an arc transition at the connection position, and the slope of the arc surface does not change suddenly along the card pushing direction.

[0070] In some other embodiments, the ascending slope 313 may also be composed of multiple smooth surfaces connected in sequence, and the smooth surface may be a plane or a curved surface.

[0071] Through the above-mentioned setting, the smooth extension of the rising slope 313 means that there are no corners on the rising slope 313, and the rising slope 313 and the card pushing plane 304 have a smooth transition, so that the mahjong tiles 400 are pushed onto the rising board 300 and maintain smooth movement during the movement on the rising board 300, thereby improving the smoothness and stability of the mahjong tiles 400 during movement, reducing sudden acceleration during movement of the mahjong tiles 400, and helping to reduce the probability of dropping tiles.

[0072] Based on the above embodiments, Figures 5 to 9 As shown, in one embodiment, the position where the rising slope 313 connects to the card pushing guide surface 304 constitutes a rising starting point, and the straight-line distance between the rising starting point 3131 and the highest point 305 of the rising card is less than the width of a mahjong tile 400.

[0073] This arrangement allows the next pile of mahjong tiles 400 to support the previous pile 400 more obliquely on the ascending slope 313 when the previous pile is about to be pushed away from the ascending plate 300, further increasing the offset distance between the upper and lower mahjong tiles in the previous pile 400.

[0074] Based on the above embodiments, Figures 5 to 11 As shown, in one embodiment, during the card raising process, the mahjong tiles 400 are pushed away from the card raising plate 300 with the support of the table top 100 and the descending slope 314, and the mahjong tile support position on the descending slope 314 forms a card pushing support portion 3144, and the starting point of the descending slope 314 along the card pushing direction is the descending starting point 3141, and the card pushing support portion 3144 is higher than the descending starting point 3141 in the vertical direction.

[0075] The tabletop 100 supporting the mahjong tiles 400 is located at the upper edge of the tile raising opening 110 close to the tile discharging end 303 of the tile raising plate 300 .

[0076] The card pushing support portion 3144 is higher than the slow-down starting point 3141 in the vertical direction, which means that the mahjong tile 400 can be affected by the slow-down slope 314 at a position between the slow-down starting point 3141 and the card pushing support portion 3144 on the slow-down slope 314.

[0077] Through the above arrangement, it is ensured that the slow-down slope 314 has a sufficient slow-down effect on the mahjong tiles 400, reducing the speed of the mahjong tiles 400 rotating and falling on the table 100, and reducing the probability of the mahjong tiles 400 falling.

[0078] Based on the aforementioned embodiment, in one embodiment, during the card raising process, the card pushing support portion 3144 is not higher than the upper surface of the table top 100 in the vertical direction.

[0079] This arrangement prevents the mahjong tiles 400 supported by the table top 100 and the card pushing support 3144 from tilting toward one side of the table top 100, thereby preventing the mahjong tiles 400 from sliding forward when they rotate and fall to be supported by both the table top 100 and the card pushing support 3144, thereby reducing the probability of the mahjong tiles 400 falling at this stage.

[0080] It is understood that the push-card support portion 3144 provides support for the mahjong tile 400 from the time the mahjong tile 400 contacts the table surface 100 until the tile is pushed away from the tile raising plate 300. The push-card support portion 3144 can be located on a support line on the gently descending slope 314, or the push-card support portion 3144 can also be a support surface.

[0081] When the push-up support portion 3144 is a support line, the support line can be located at the terminal position of the slowly descending slope 314, or at the middle part of the slowly descending slope 314. When the slowly descending slope 314 is a cambered surface, since the inclination angle of the mahjong tiles 400 supported by the table top 100 and the push-up support portion 3144 is determined, the extending direction of the slope of the slowly descending slope 314 at the support line position is consistent with the inclination angle direction of the mahjong tiles 400 and the horizontal plane. When the slowly descending slope 314 is composed of multiple sections of surfaces connected in sequence, the support line can be at the corner of two adjacent surfaces, and the slope of the slowly descending slope 314 on one side of the corner is greater than the inclination angle of the mahjong tiles 400, and the slope on the other side is less than the inclination angle of the mahjong tiles.

[0082] It should be noted that when the support line is located in the middle of the slowly descending slope 314, the slowly descending slope 314 located beyond the support line along the card pushing direction does not actually play a role in slowly descending.

[0083] In this embodiment, preferably, during the card raising process, the card pushing support portion 3144 is lower than the upper surface of the table top 100 in the vertical direction.

[0084] With this arrangement, when the mahjong tiles 400 are supported by the table top 100 and the tile pushing support 3144 at the same time, the mahjong tiles 400 have a tendency to slide toward the tile raising plate 300. This sliding tendency makes it difficult for the upper mahjong tiles 400 in the pile of mahjong tiles 400 to move forward and fall even if they have a certain inertia due to falling due to rotation, thereby further reducing the probability of falling tiles.

[0085] In one embodiment, based on the above embodiments, Figures 6 to 9As shown, the side of the boss 310 facing away from the push-card guide surface 304 forms a tile-receiving side 312. A descending slope 315 is provided on the tile-receiving side 312. The descending slope 315 is formed by extending one end of the slowly descending slope 314 in the direction of pushing the tiles. One end of the descending slope 315 is connected to the end surface of the tile-raising plate 300 near the rotation connection point 301. During the tile-raising process, a gap exists between the descending slope 315 and the mahjong tiles 400 supported on the table 100 and the tile-raising plate 300, and the maximum vertical value of the gap is less than 3 mm.

[0086] During the tile raising process, the descending slope 315 does not come into contact with the tiles 400; it only needs to be no higher than the upper end of the ascending slope 313. However, when the raising plate 300 is horizontal and the raising opening 110 is filled, the tiles 400 will also be arranged on the descending slope 315. There is also a certain height difference between the descending slope 315 and the upper edge of the raising opening 110. This height difference may cause one end of the tile 400 to fall between the raising opening 110 and the descending slope 315, causing the tile 400 to tilt.

[0087] Through the above-mentioned setting, the back-to-card side 312 of the boss 310 is connected and transitioned through the descending slope 315. When the card-raising board 300 is in the standby position, the mahjong tiles 400 on the card-raising board 300 near the card-raising mouth 110 will be arranged according to the shape of the descending slope 315. The descending slope 315 can make the arrangement of the mahjong tiles 400 more orderly. At the same time, by limiting the gap between the descending slope 315 of the card-raising board 300 and the mahjong tiles 400 during the card-raising process, the difference between the descending slope 315 and the card-raising mouth 110 when the card-raising board 300 is in the standby position can be reduced, so that the mahjong tiles 400 on the table 100 can be arranged more orderly.

[0088] In one embodiment, based on the above embodiments, Figure 10 、 Figure 11 As shown, the descending slope 314 is provided with a descending surface 3142 and a supporting plane 3143 along the card pushing direction. The slope of the descending surface 3142 gradually decreases along the card pushing direction. The supporting plane 3143 extends from one end of the descending surface 3142 along the card pushing direction. During the card raising process, the inclination angle of the supporting plane 3143 is consistent with the inclination angle when the mahjong tile 400 is pushed away from the card raising board. The card pushing support part 3144 is the supporting plane 3143.

[0089] The descending surface 3142 may be a convex curved surface; or it may be composed of multiple smooth surfaces connected in sequence, and the smooth surface may be a flat surface or a convex curved surface. The slope of the descending slope 314 gradually decreases along the card pushing direction on the descending surface 3142, and the slope of the supporting plane 3143 is no greater than the slope of the descending surface 3142 at the connection point between the two.

[0090] Through the above-mentioned arrangement, the inclination angle of the supporting plane 3143 is the same as the inclination angle of the mahjong tile 400 when it is pushed away from the tile raising plate 300. When the mahjong tile 400 rotates and falls to the table surface 100 (that is, when the inclination angle of the mahjong tile 400 changes from α to β), one end of the mahjong tile 400 is supported on the table surface 100, and the other end is supported on the supporting plane 3143. The supporting plane 3143 increases the absorption area of the tile raising plate 300 for the impact force of the rotating and falling mahjong tile 400. On the one hand, it reduces the impact force on the table surface 100 and the reaction force of the table surface 100 on the mahjong tile 400. On the other hand, it also disperses the reaction force of the supporting plane 3143 on the mahjong tile 400, reduces the jumping of the mahjong tile 400 caused by the reaction force, and thus greatly reduces the probability of the mahjong tile 400 falling.

[0091] It should be noted that the support plane 3143 can extend to the edge of the card raising plate 300 near the rotation connection point 301, thereby replacing the descending slope 315. The two can be connected at an angle, or through a rounded or chamfered transition. The support plane 3143 can also be extended to a certain length, and the descending slope 315 extends from one end of the support plane 3143 along the card pushing direction and connects to the edge of the card raising plate 300 near the rotation connection point 301.

[0092] It is understandable that due to factors such as processing accuracy, assembly error, thermal expansion and contraction of materials, and the unevenness of the surface of the mahjong tiles, in actual circumstances, the support plane 3143 cannot be completely fitted to the lower end of the mahjong tile 400. At least part of the support plane 3143 can fit the mahjong tile 400 and support it, but the implementation of the technical solution can still be guaranteed.

[0093] Among them, the supporting plane 3143 can extend to the end surface of the lifting plate 300 close to the rotation connection point 301, which is more helpful to reduce the height difference between the lifting plate 300 and the lifting port 110 when the lifting plate 300 is in a horizontal state.

[0094] In one embodiment, based on the above embodiments, Figure 2 、 Figure 12 As shown, the rising slope 313 extends along the width direction of the sign-raising plate 300 .

[0095] like Figure 2 As shown, the rising slope 313 may extend from one end of the brand-raising plate 300 to the other end along the width direction of the brand-raising plate 300 .

[0096] like Figure 12 As shown, the ascending slope 313 may be provided in plurality in the width direction of the ascending plate 300 and arranged at intervals.

[0097] The rising slope 313 extends along the width direction of the tile raising plate 300 , thereby increasing the supporting area of the rising slope 313 for the mahjong tiles 400 and improving the stability of the mahjong tiles 400 moving on the rising slope 313 .

[0098] In one embodiment, based on the above embodiments, Figure 2 、 Figure 12 As shown, the descending slope 314 extends along the width direction of the sign-lifting plate 300 .

[0099] like Figure 2 As shown, the descending slope 314 can extend from one end of the lifting plate 300 to the other end along the width direction of the lifting plate 300.

[0100] like Figure 12 As shown, a plurality of descending slopes 314 may be provided in the width direction of the sign-lifting plate 300 and arranged at intervals.

[0101] The descending slope 314 extends along the width direction of the lifting board 300, which increases the support area of the descending slope 314 for the mahjong tiles 400, improves the stability of the mahjong tiles 400 moving on the descending slope 314, and also helps to improve the descending effect of the descending slope 314 on the mahjong tiles 400.

[0102] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. An automatic mahjong machine with tilted tile lifting, comprising a tabletop and a tile lifting plate, wherein the tabletop has a tile lifting opening. The tile lifting plate swings and rises relative to the tabletop between a standby position with the tile lifting opening closed and a tile lifting position with the tile lifting opening open. The tile lifting plate includes a tile entry end and a tile exit end. Mahjong tiles are lifted onto the tabletop from the tile entry end toward the tile exit end along the tile lifting plate in the lifting position. The machine is characterized by: The card-lifting plate includes a card-pushing guide surface and a boss. The card-pushing guide surface extends straight from the card-in end to the card-out end. The boss is arranged near the card-out end and protrudes from the plane where the card-pushing guide surface is located. During the card-lifting process, the mahjong tiles pushed along the card-pushing guide surface flip over the boss and are pushed to the table surface. The boss has a slowly descending slope. The card-lifting plate has a highest point for card lifting in the thickness direction. The highest point for card lifting is located on the slowly descending slope. The slope of the slowly descending slope gradually decreases along the card-pushing direction, so that the contact part between the bottom surface of the mahjong tile and the slowly descending slope continues to move forward along the card-pushing direction during the process of the mahjong tile flipping over the boss.

2. The automatic mahjong machine according to claim 1, wherein: The side of the boss facing the card pushing guide surface forms a card receiving side, and the card receiving side is provided with an ascending slope connecting the card pushing guide surface and the slowly descending slope. The mahjong tiles are pushed up to the slowly descending slope along the ascending slope.

3. The automatic mahjong machine according to claim 2, wherein: The position where the rising slope connects with the card pushing guide surface constitutes a rising starting point, and the straight-line distance between the rising starting point and the highest point of the card raising is less than the width of a mahjong tile.

4. The automatic mahjong machine according to claim 2, wherein: The width of a mahjong tile is W, the angle between the mahjong tile supported on the table top and the tile raising board and the table top is β, the straight-line distance between the highest point of the tile raising in the thickness direction of the tile raising board and the tile pushing guide surface is H, and tanβ>H / W.

5. The automatic mahjong machine according to claim 1, wherein: The side of the boss facing away from the card pushing guide surface forms a card backing side, and the card backing side is provided with a descending slope, and the descending slope is formed by one end of the slowly descending slope extending along the card pushing direction, and one end of the descending slope is connected to the card discharging end; During the tile raising process, there is a gap between the descending slope and the mahjong tiles supported on the table top and the tile raising board, and the maximum value of the gap in the vertical direction is less than 3 mm.

6. The automatic mahjong machine according to claim 1, wherein: During the card raising process, the mahjong tiles are pushed away from the card raising board under the support of the table top and the slowly descending slope. The mahjong tile support position on the slowly descending slope forms a card pushing support part. The starting point of the slowly descending slope along the card pushing direction is the slowly descending starting point, and the card pushing support part is higher than the slowly descending starting point in the vertical direction.

7. The automatic mahjong machine according to claim 6, wherein: During the card raising process, the card pushing support portion is no higher than the upper surface of the table in the vertical direction.

8. The automatic mahjong machine according to claim 6, wherein: The slowly descending slope is provided with a slowly descending surface and a supporting plane along the card pushing direction. The slope of the slowly descending surface gradually decreases along the card pushing direction. The supporting plane extends from one end of the slowly descending surface along the card pushing direction. The mahjong tiles are pushed away from the card raising board under the support of the table top and the supporting plane. The card pushing support part is the supporting plane.

9. The automatic mahjong machine according to claim 1, wherein: The slowly descending slope is an outward convex arc surface, and the slope of the tangent direction of the outward convex arc surface gradually decreases along the card pushing direction; or The slowly descending slope is composed of at least two planes, and the slopes of the at least two planes gradually decrease along the card pushing direction; or The slowly descending slope is composed of at least one plane and at least one convex arc surface, and the slopes of the at least one plane and the at least one convex arc surface gradually decrease along the card pushing direction.

10. The automatic mahjong machine according to any one of claims 1 to 9, characterized in that: The slowly descending slope extends along the width direction of the signboard.

11. The automatic mahjong machine according to claim 2, 3 or 4, characterized in that: The ascending slope extends along the width direction of the ascending plate.

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