Inclined tile feeding device of automatic mahjong machine

Abstract

The utility model discloses an inclined tile feeding device of an automatic mahjong machine. The inclined tile feeding device solves various problems caused by the fact that an existing inclined tile feeding device adopts a cam device. The inclined mahjong tile feeding device of the automatic mahjong machine comprises a mahjong tile pushing mechanism and a mahjong tile lifting mechanism, the mahjong tile lifting mechanism is installed on a mahjong tile pushing support and comprises a mahjong tile lifting motor, a mahjong tile lifting plate, a driving gear, a driven gear and a mahjong tile lifting connecting rod, the mahjong tile lifting motor drives the driving gear to rotate, the driving gear is in meshed transmission with the driven gear, and the mahjong tile lifting connecting rod is connected with the mahjong tile pushing support. The tile lifting connecting rod slides between a first position and a second position, a protruding block is arranged on the tile lifting connecting rod, a first shifting block rotating synchronously is arranged on the driving gear and shifts the protruding block to push the tile lifting connecting rod to slide towards the first position, and a second shifting block rotating synchronously is arranged on the driven gear and shifts the protruding block to push the tile lifting connecting rod to slide towards the second position. The second shifting block shifts the protruding block to push the tile lifting connecting rod to slide towards the second position, and the first shifting block and the second shifting block alternately shift the protruding block so that the tile lifting connecting rod can slide in a reciprocating mode to drive the tile lifting plate to swing and ascend and descend.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic mahjong machine technical field, especially is automatic mahjong machine's tilt card feeding device. BACKGROUND

[0002] The tilt card feeding device of the existing automatic mahjong machine usually adopts a cam device to realize the swing lifting of the card lifting plate in the tilt card feeding device (for details, refer to the Chinese invention patent application with the publication number CN115721922A and the name of driving device of mahjong machine push lifting mechanism, mahjong machine push lifting mechanism and mahjong machine).

[0003] However, the contour curve of the cam device needs to be accurately calculated, which makes the design of the cam device difficult and increases the cost of the tilt card feeding device. SUMMARY

[0004] The utility model solves the technical problem of overcoming the deficiencies of the prior art and proposes a tilt card feeding device of an automatic mahjong machine to solve the various problems caused by the use of a cam device in the existing tilt card feeding device.

[0005] To achieve the above technical target, the tilt card feeding device of the automatic mahjong machine proposed by the utility model comprises a card pushing mechanism, which comprises a card pushing support provided with a card pushing groove for storing mahjong tiles; and

[0006] A card lifting mechanism is installed on the card pushing support.

[0007] The card lifting mechanism comprises a card lifting motor, a card lifting plate, a driving gear, a driven gear and a card lifting link. The card lifting motor drives the driving gear to rotate. The driving gear meshes with the driven gear to drive it. The card lifting link slides between a first position and a second position. The card lifting link is provided with a protrusion. The driving gear is provided with a first knob that rotates synchronously. The first knob pushes the protrusion to slide the card lifting link to the first position. The driven gear is provided with a second knob that rotates synchronously. The second knob pushes the protrusion to slide the card lifting link to the second position. The first knob and the second knob alternately push the protrusion to make the card lifting link slide back and forth to drive the card lifting plate to swing and lift.

[0008] The utility model discloses a tilt card device, through the first dial block and second dial block alternate dialing protruding block and promote the card lifting link to reciprocate sliding between the first position and the second position, to realize the swing of card lifting plate, the swing of card lifting plate is not needed to adopt cam in card lifting mechanism and realizes, and the design of dial block and protruding block is relatively simple, helps to reduce the production cost of card lifting mechanism, also helps to reduce the space occupied, on the other hand, the force transmission between dial block and protruding block is relatively stable, can reduce the impact force of driving gear, driven gear to card lifting link and the vibration of card lifting link.

[0009] As preferred, the protruding blocks include first protruding blocks and second protruding blocks, the first dial blocks dial the first protruding blocks, the second dial blocks dial the second protruding blocks, the transmission ratio of the driving gear to the driven gear is 1:N, N is a positive integer, and the number ratio of the first dial blocks to the second dial blocks is 1:N.

[0010] By setting the transmission ratio of the driving gear to the driven gear as 1:N and N as a positive integer, the driving gear and the driven gear will not deviate when dialing the card lifting link, ensuring the accuracy of the first dial block and the second dial block dialing the protruding blocks. At the same time, due to the transmission ratio of the driving gear to the driven gear, the driving gear rotates N times and the driven gear rotates 1 time. The number ratio of the first dial block to the second dial block is 1:N, so that the corresponding second dial block on the driven gear dials the second protruding block once for every rotation of the driving gear. Therefore, the driving gear does not need to rotate multiple times to make the driven gear dial the second protruding block once, reducing the rotation of the card lifting motor and simplifying the control difficulty of the swing of the card lifting plate.

[0011] As preferred, the first protruding blocks and the second protruding blocks are arranged on the same side of the card lifting link, and the rotation directions of the driving gear and the driven gear are opposite.

[0012] Or,

[0013] The first protruding blocks and the second protruding blocks are arranged on the two sides of the card lifting link, the driving gear and the driven gear are correspondingly arranged on the two sides of the card lifting link, and the rotation directions of the driving gear and the driven gear are the same.

[0014] By the foregoing technical solution, the positions and shapes of the first protruding blocks and the second protruding blocks are easier to design and calculate, thereby simplifying the design difficulty of the card lifting mechanism and reducing the cost. Or, another layout mode is adopted to realize the dialing cooperation between the first dial blocks, the second dial blocks, the first protruding blocks, and the second protruding blocks, thereby realizing the reciprocating sliding of the card lifting link between the first position and the second position.

[0015] As preferred, the convex block comprises a lifting convex block, two sides of the lifting convex block are respectively provided with a first poking part and a second poking part, the first poking block pokes the first poking part, the second poking block pokes the second poking part, and the rotation direction of the driving gear is opposite to that of the driven gear.

[0016] By means of the above technical scheme, the first poking block and the second poking block respectively poke the first poking part and the second poking part of the lifting convex block, so that the lifting plate connecting rod reciprocally slides between the first position and the second position, and the design of the lifting plate mechanism is further simplified, and the cost is reduced.

[0017] As preferred, the lifting plate connecting rod is located at the first position to make the lifting plate swing and rise to a lifting state, the first poking block is provided with a convex arc surface, the convex block is provided with a concave arc surface, and the convex arc surface and the concave arc surface are in concave-convex cooperation to lock the lifting plate in the lifting state.

[0018] Or,

[0019] The lifting plate connecting rod is located at the second position to make the lifting plate swing and rise to a lifting state, the second poking block is provided with a convex arc surface, the convex block is provided with a concave arc surface, and the convex arc surface and the concave arc surface are in concave-convex cooperation to lock the lifting plate in the lifting state.

[0020] By means of the above technical scheme, the convex arc surface on the first poking block or the second poking block and the concave arc surface on the convex block are in concave-convex cooperation to lock the lifting plate in the lifting state, so that the lifting plate can stably support the mahjong tiles, and the reliability and stability of the lifting plate mechanism are improved.

[0021] As preferred, the lifting plate mechanism further comprises a first sensor, the first sensor detects that the lifting plate is in the lifting state, and the first sensor is triggered in the concave-convex cooperation process of the convex arc surface and the concave arc surface.

[0022] By means of the above technical scheme, the first sensor is arranged, so that the lifting plate stops the lifting motor after the mahjong tiles are lifted to the table surface of the automatic mahjong machine, and meanwhile, the first sensor is triggered in the concave-convex cooperation process of the convex arc surface and the concave arc surface, so that the lifting plate can be locked in the lifting state, the lifting plate is prevented from swinging and descending due to the gravity of the mahjong tiles, and the operation reliability and stability of the lifting plate mechanism are further improved.

[0023] As preferred, the lifting plate mechanism further comprises a second sensor, the lifting plate swings and descends to make one end of the lifting plate link to a tile outlet to be in a tile receiving state, the second sensor is used to detect that the lifting plate is in the tile receiving state, and the first sensor and the second sensor are installed on the same circuit board.

[0024] By means of the above technical scheme, the second sensor is arranged to stop the card lifting motor when the card lifting plate is in a card receiving state, and the detection signal of the second sensor is also used as a starting signal of the card pushing mechanism, so that the card lifting mechanism can cooperate with the card pushing mechanism to complete the card pushing and card lifting of the tilting card lifting device. Meanwhile, the first sensor and the second sensor are installed on the same circuit board, and the two sensors can be assembled in the same assembly process, thereby reducing the assembly cost.

[0025] As a preferred, the driving gear is provided with a plurality of first tooth portions in the circumferential direction, wherein two adjacent first tooth portions extend along a direction away from the rotation axis of the driving gear and are connected to form a large tooth,

[0026] The first shifting block is opposite to the position of the large tooth, and the first shifting block extends to the large tooth and is connected to the large tooth;

[0027] Or,

[0028] The driven gear is provided with a plurality of second tooth portions in the circumferential direction, wherein two adjacent second tooth portions extend along a direction away from the rotation axis of the driven gear and are connected to form a large tooth, the column driving gear is provided with an avoidance slot matched with the large tooth, and the second shifting block is opposite to the position of the large tooth, and the second shifting block extends to the large tooth and is connected to the large tooth.

[0029] By means of the above technical scheme, the large tooth and the avoidance slot are arranged, the large tooth is matched in the avoidance slot when the driving gear and the driven gear are assembled, so as to ensure the accuracy of the installation of the driving gear and the driven gear. Since the first shifting block and the second shifting block alternately shift the tooth block, the accuracy of the installation of the driving gear and the driven gear can ensure the accuracy of the movement of the card lifting connecting rod, so as to improve the accuracy of the swinging and lifting of the card lifting plate. Meanwhile, the first shifting block or the second shifting block extends to the large tooth and is connected to the large tooth, which simplifies the mold design of the driving gear or the driven gear, reduces the mold cost, and meanwhile, the connection of the first shifting block or the second shifting block and the large tooth avoids the deformation caused by the material shrinkage during the cooling process at the combined position, thereby improving the stability of the product quality of the driving gear or the driven gear.

[0030] As a preferred, the card lifting mechanism further comprises a card lifting rocker, the card lifting rocker is rotationally connected to the card pushing support, the card lifting plate is provided with a lifting groove,

[0031] The other end of the card lifting rocker is provided with a strip-shaped groove, and one end of the card lifting connecting rod is provided with a transmission pin matched with the strip-shaped groove, or,

[0032] The other end of the lifting card rocker arm is provided with a transmission pin, and one end of the lifting card connecting rod is provided with a strip-shaped slot matched with the transmission pin.

[0033] By the above technical scheme, the sliding of the lifting card connecting rod drives the lifting card plate to swing and lift, so that the mahjong pushing and lifting are completed in cooperation with the mahjong pushing mechanism.

[0034] Preferably, the lifting card mechanism further comprises a connecting rod pressing cap, and the pushing card support is provided with a guide slot extending along the length direction of the lifting card plate on the side close to the lifting card plate, and the connecting rod pressing cap covers the guide slot, and the connecting rod pressing cap and the guide slot define the sliding space of the lifting card connecting rod.

[0035] By the above technical scheme, the sliding space guiding the sliding of the lifting card connecting rod is formed on the pushing card support, so that the lifting card connecting rod can slide along the sliding path defined by the sliding space between the first position and the second position, and the accuracy of the sliding of the lifting card connecting rod is ensured.

[0036] These features and advantages of the present application will be described in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a schematic view of the inclined mahjong lifting device in the embodiment of the present application;

[0038] Figure 2 It is a schematic view of the bottom of the inclined mahjong lifting device in the embodiment of the present application;

[0039] Figure 3 It is a schematic view of the driven gear in the embodiment of the present application;

[0040] Figure 4 It is a schematic view of the driving gear in the embodiment of the present application;

[0041] Figure 5 It is a schematic view of the cooperation of the lifting card connecting rod, the driving gear and the driven gear to make the lifting card connecting rod in the first position in the embodiment of the present application;

[0042] Figure 6 It is another schematic view of the cooperation of the lifting card connecting rod, the driving gear and the driven gear to make the lifting card connecting rod in the second position in the embodiment of the present application;

[0043] Figure 7 It is a schematic view of the cooperation of the large convex tooth of the driving gear and the avoidance slot of the driven gear in the embodiment of the present application;

[0044] Figure 8Another schematic view of the cooperation of the card lifting connecting rod, the driving gear and the driven gear in the embodiment of the utility model;

[0045] Figure 9 Another schematic view of the cooperation of the card lifting connecting rod, the driving gear and the driven gear in the embodiment of the utility model;

[0046] Figure 10 The exploded schematic view of the card pushing support, the card lifting connecting rod and the connecting rod gland in the embodiment of the utility model;

[0047] Figure 11 The schematic view of the card lifting mechanism in the card lifting state in the embodiment of the utility model;

[0048] Figure 12 The schematic view of the card lifting mechanism in the card receiving state in the embodiment of the utility model;

[0049] Figure 13 The schematic view of the card lifting rocker arm in the embodiment of the utility model;

[0050] Figure 14 The schematic view of the card lifting connecting rod in the embodiment of the utility model.

[0051] Reference signs:

[0052] 100, card lifting mechanism, 110, card lifting plate, 111, lifting groove, 120, card lifting motor, 130, driving gear, 131, first shifting block, 132, convex arc surface, 133, first tooth part, 134, large convex tooth, 140, driven gear, 141, second shifting block, 142, avoiding groove, 143, second tooth part, 150, card lifting connecting rod, 151, transmission pin, 160, convex block, 161, first convex block, 162, second convex block, 163, lifting convex block, 1631, first shifting part, 1632, second shifting part, 164, concave arc surface, 170, connecting rod gland, 180, card lifting rocker arm, 181, driving part, 182, strip-shaped groove;

[0053] 200, card pushing mechanism, 210, card pushing support, 211, card pushing base, 212, outer ring baffle, 213, inner ring baffle, 214, card lifting plate mounting part, 215, card pushing groove, 2151, card outlet, 2152, card inlet, 216, guide groove, 220, card pushing component, 230, card pushing motor;

[0054] 300, circuit board, 310, first sensor, 320, second sensor. DETAILED DESCRIPTION

[0055] The technical solutions of the embodiments of the utility model will be explained and described below in combination with the drawings of the embodiments of the utility model. However, the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by the person skilled in the art without creative labor all belong to the protection scope of the utility model.

[0056] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0057] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of", "several" is two or more than two, unless otherwise explicitly limited.

[0058] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0059] As shown in Figures 1 to 9 、 Figure 11 、 Figure 12 The inclined tile device of the automatic mahjong machine proposed in the embodiments of the utility model comprises a tile pushing mechanism 200 and a tile lifting mechanism 100.

[0060] In the embodiment, the tile pushing mechanism 200 comprises a tile pushing support 210, a tile pushing component 220, and a tile pushing motor 230 for driving the tile pushing component 220. The tile pushing support 210 is provided with a tile pushing groove 215 for storing the mahjong tiles. The tile pushing groove 215 comprises a tile inlet 2152 and a tile outlet 2151, and is in an arc-shaped bending structure with a bending angle greater than 180° from the tile inlet 2152 to the tile outlet 2151. The tile pushing component 220 comprises a tile pushing head for pushing the mahjong tiles in the tile pushing groove 215 towards the tile outlet 2151. The tile pushing support 210 comprises a tile pushing base 211, an outer ring baffle 212, and an inner ring baffle 213. The outer ring baffle 212 and the inner ring baffle 213 are installed on the tile pushing base 211, and the outer ring baffle 212, the inner ring baffle 213, and the tile pushing base 211 form the tile pushing groove 215. The outer ring baffle 212 and the inner ring baffle 213 define the movement track of the mahjong tiles in the tile pushing groove 215, and the distance between the outer ring baffle 212 and the inner ring baffle 213 allows the mahjong tiles to move smoothly therebetween.

[0061] In some other embodiments, the tile pushing mechanism 200 can also adopt the tile pushing mechanism as disclosed in the Chinese Utility Model Patent with the Patent No. 200620140003.6 and the patent name of Slope Tile Outlet Device for Full-automatic Mahjong Machine. In the patent, four arc-shaped tile pushing grooves in the shape of a windmill are arranged below the mahjong table.

[0062] In the embodiment, the tile lifting mechanism 100 is installed on the tile pushing support 210. The tile lifting mechanism 100 comprises a tile lifting motor 120 and a tile lifting plate 110. The tile pushing support 210 further comprises a tile lifting plate mounting portion 214 connected to the tile outlet 2151. The tile lifting plate mounting portion 214 is formed by extending one end of the tile pushing base 211 away from the tile outlet 2151. The tile lifting plate mounting portion 214 has a swinging space for swinging and lifting the tile lifting plate 110. One end of the tile lifting plate 110 is rotatably connected to the tile lifting plate mounting portion 214. The tile lifting motor 120 is used to drive the tile lifting plate 110 to swing and lift so as to lift the other end of the tile lifting plate 110. The tile lifting motor 120 is installed at the lower end of the tile pushing base 211.

[0063] In the embodiment, the tile lifting motor 120 and the tile pushing motor 230 are independent of each other. The tile lifting motor 120 is used to drive the tile lifting plate 110 to move, and the tile pushing motor 230 is used to drive the tile pushing component 220 to move.

[0064] The card lifting mechanism 100 further comprises a driving gear 130, a driven gear 140 and a card lifting link 150, the card lifting motor 120 drives the driving gear 130 to rotate, the driving gear 130 meshes with the driven gear 140, the card lifting link 150 slides between a first position and a second position, the card lifting link 150 is provided with a protrusion 160, the driving gear 130 is provided with a first poking block 131 rotating synchronously, the first poking block 131 pokes the protrusion 160 to push the card lifting link 150 to slide to the first position, the driven gear 140 is provided with a second poking block 141 rotating synchronously, the second poking block 141 pokes the protrusion 160 to push the card lifting link 150 to slide to the second position, the first poking block 131 and the second poking block 141 alternatively poke the protrusion 160 to make the card lifting link 150 reciprocate to drive the card lifting plate 110 to swing and lift.

[0065] Reference Figure 5 、 Figure 6 、 Figure 11 、 Figure 12 The card lifting link 150 is in the first position and the second position respectively corresponding to a card lifting state and a card receiving state of the card lifting plate 110. In the card receiving state, the card lifting plate 110 swings and lowers to make one end thereof connect the tile outlet 2151, and the tile pushing head pushes the mahjong tiles onto the card lifting plate 110. In the card lifting state, the card lifting plate 110 swings and lifts the mahjong tiles onto the table surface of the automatic mahjong machine.

[0066] In the embodiment, the card lifting link 150 is in the first position corresponding to the card lifting plate 110 being in the card lifting state, and the card lifting link 150 is in the second position corresponding to the card lifting plate 110 being in the card receiving state. It can be understood that, in some other embodiments, the card lifting link 150 can be in the second position corresponding to the card lifting plate 110 being in the card lifting state, and the card lifting link 150 can be in the first position corresponding to the card lifting plate 110 being in the card receiving state.

[0067] The card lifting mechanism of the utility model realizes the swing and lift of the card lifting plate 110 through the first poking block 131 and the second poking block 141 alternatively poking the protrusion 160 to push the card lifting link 150 to reciprocate between the first position and the second position, the cam is not needed in the card lifting mechanism 100 to realize the swing and lift of the card lifting plate 110, the design of the poking block and the protrusion 160 is relatively simple, which helps to reduce the production cost of the card lifting mechanism 100, also helps to reduce the occupied space, on the other hand, the force transmission between the poking block and the protrusion 160 is relatively stable, which helps to improve the operation accuracy of the card lifting link 150, and reduces the impact of the driving gear 130 and the driven gear 140 on the card lifting link 150 and the vibration of the card lifting link 150.

[0068] In the embodiment, the first shifting block 131 can be integrally formed on the driving gear 130 or can be mounted on the driving gear 130; correspondingly, the second shifting block 141 can be integrally formed on the driven gear 140 or can be mounted on the driven gear 140.

[0069] In the embodiment, the driven gear 140 is rotationally connected to the card pushing base 211, and the card pushing base 211 is provided with a space for the card lifting link 150 to slide. The driving gear 130 can be fixed on the motor shaft of the card lifting motor 120 or can be rotationally connected to the card pushing base 211 and driven by the driving gear on the motor shaft of the card lifting motor 120.

[0070] In one embodiment, based on the tilting card delivery device of the foregoing embodiment, as shown in Figures 5 to 7 The convex block 160 includes a first convex block 161 and a second convex block 162, the first shifting block 131 shifts the first convex block 161, the second shifting block 141 shifts the second convex block 162, the transmission ratio of the driving gear 130 to the driven gear 140 is 1:N, N is a positive integer, and the number ratio of the first shifting block 131 to the second shifting block 141 is 1:N.

[0071] The first shifting block 131 shifts the first convex block 161 to make the card lifting link 150 slide to the first position, and the second shifting block 141 shifts the second convex block 162 to make the card lifting link 150 slide to the second position.

[0072] By setting the transmission ratio of the driving gear 130 to the driven gear 140 as 1:N and N as a positive integer, the driving gear 130 and the driven gear 140 will not deviate when shifting the card lifting link 150, ensuring the accuracy of the first shifting block 131 and the second shifting block 141 shifting the convex block 160, respectively. At the same time, due to the transmission ratio of the driving gear 130 to the driven gear 140, the driving gear 130 rotates N times and the driven gear 140 rotates 1 time, the number ratio of the first shifting block 131 to the second shifting block 141 is 1:N, so that the corresponding second shifting block 141 on the driven gear 140 shifts the second convex block 162 once for every rotation of the driving gear 130, thereby the driving gear 130 does not need to rotate multiple times to make the driven gear 140 shift the second convex block 162 once, reducing the rotation of the card lifting motor 120 and simplifying the control difficulty of the swing lifting of the card lifting plate 110.

[0073] It should be noted that, Figures 5 to 7 In one example of the present scheme, the driving gear 130 and the driven gear 140 rotate in the direction shown in the figure, but it is not meant that the driving gear 130 and the driven gear 140 must rotate in the direction shown in the figure. By changing the positions and shapes of the first convex block 161 and the second convex block 162, the driving gear 130 and the driven gear 140 can also rotate in the direction opposite to the direction shown in the figure.

[0074] In one embodiment, such as Figures 5 to 7 As shown, the first protrusion 161 and the second protrusion 162 are located on the same side of the lifting linkage 150, and the driving gear 130 and the driven gear 140 rotate in opposite directions.

[0075] The driving gear 130 can directly mesh with the driven gear 140, or it can indirectly mesh with the driven gear 140 through an even number of idler gears. The driving gear 130 can also mesh with the driven gear 140 through a cross-type annular transmission belt, which can be a chain or a synchronous belt.

[0076] In this embodiment, the direction from the first protrusion 161 to the second protrusion 162 is consistent with or substantially consistent with the direction from the second position to the first position. "Substantially consistent" means that the direction from the first protrusion 161 to the second protrusion 162 and the direction from the second position to the first position have the same tendency; there may be an angle between the two directions, but the angle is less than 90°.

[0077] With this configuration, the position and shape of the first protrusion 161 and the second protrusion 162 are easier to design and calculate, thereby simplifying the design of the card-raising mechanism 100 and reducing costs.

[0078] In some other embodiments, the first protrusion 161 and the second protrusion 162 are respectively disposed on both sides of the lifting rod 150, and the driving gear 130 and the driven gear 140 are respectively disposed on both sides of the lifting rod 150, with the driving gear 130 and the driven gear 140 rotating in the same direction.

[0079] In this configuration, the driving gear 130 indirectly meshes with the driven gear 140 through an odd number of idler gears; or, the driving gear 130 meshes with the driven gear 140 through a parallel annular transmission belt, which can be a chain or a synchronous belt.

[0080] With this configuration, the first lever 131, the second lever 132 and the first protrusion 161, the second protrusion 162 are engaged in a different layout, thereby enabling the reciprocating sliding of the lifting linkage 150 between the first position and the second position.

[0081] In one embodiment, unlike the foregoing embodiments, as follows: Figures 8 to 9 As shown, the protrusion 160 includes a lifting protrusion 163. The two sides of the lifting protrusion 163 are respectively provided with a first actuating part 1631 and a second actuating part 1632. The first actuating block 131 actuates the first actuating part 1631, and the second actuating block 141 actuates the second actuating part 1632. The rotation directions of the driving gear 130 and the driven gear 140 are opposite.

[0082] In this configuration, the first lever 131 actuates the first actuating part 1631, causing the lifting linkage 150 to slide towards the first position. The second lever 141 actuates the second actuating part 1632, causing the lifting linkage 150 to slide towards the second position. The direction from the first actuating part 1631 to the second actuating part 1632 is the same as or approximately the same as the direction from the second position to the first position. "Approximately the same" means that the direction from the first actuating part 1631 to the second actuating part 1632 and the direction from the second position to the first position have the same tendency; there may be an angle between the two directions, but the angle is less than 90°. Generally, it is necessary to minimize this angle to obtain a better transmission effect.

[0083] The driving gear 130 can directly mesh with the driven gear 140, or it can indirectly mesh with the driven gear 140 through an even number of idler gears. The driving gear 130 can also drive the driven gear 140 through a cross-meshing transmission belt, which can be a chain or a synchronous belt.

[0084] By using the first lever 131 and the second lever 141 to move the first lever 1631 and the second lever 1632 of the lifting protrusion 163 respectively, the lifting linkage 150 can slide back and forth between the first position and the second position, thereby further simplifying the design of the lifting mechanism 100 and reducing costs.

[0085] In one embodiment, based on the tilting license plate issuing device of the foregoing embodiment, referencing Figure 5 The lifting linkage 150 is in the first position so that the lifting plate 110 swings up to the lifting state. The first lever 131 is provided with a convex arc surface 132, and the protrusion 160 is provided with a concave arc surface 164. The convex arc surface 132 and the concave arc surface 164 cooperate to lock the lifting plate 110 in the lifting state.

[0086] The convex-concave fit between the convex surface 132 and the concave surface 164 means that the two surfaces are concentric. When the first lever 131 moves the protrusion 160, and the lifting rod 150 is in the first position, the convex surface 132 and the concave surface 164 are concentric. The first lever 131 can slide relative to the protrusion 160 without pushing it, thus restricting the continued movement of the lifting rod 150. Simultaneously, the convex-concave fit between the convex surface 132 and the concave surface 164 causes the convex surface 132 to block the concave surface 164 from moving towards the second position, thus restricting the lifting rod 150 from the first position to the second position. Since mahjong tiles are piled on the lifting plate 110, the lifting plate 110 has a tendency to swing downwards, but the lifting rod 150 is restricted from moving, thus limiting the movement of the lifting plate 110, and the lifting plate 110 is locked in the lifting state.

[0087] In the convex-convex mating of the convex arc surface 132 and the concave arc surface 164, there is no gap between them. However, due to machining accuracy and assembly errors, there will inevitably be gaps between the convex arc surface 132 and the concave arc surface 164 at least in some positions. Although this gap may cause slight displacement or wobbling of the concave arc surface 164 relative to the convex arc surface 132, this displacement or wobbling does not affect the locking of the lifting plate 110 in the lifting plate state by the convex-convex mating of the convex arc surface 132 and the concave arc surface 164.

[0088] It is understood that in another embodiment, the lifting linkage 150 may be in the second position to allow the lifting plate 110 to swing up to the lifting state, the convex arc surface 132 is provided on the second lever 141, and the protrusion 160 is provided with a concave arc surface 164. The convex arc surface 132 and the concave arc surface 164 cooperate to lock the lifting plate 110 in the lifting state.

[0089] The convex arc surface 132 on the first lever 131 or the second lever 141 and the concave arc surface 164 on the protrusion 160 are used to lock the lifting plate 110 in the lifting state, so as to prevent the lifting plate 110 from falling due to the weight of the mahjong tiles in the lifting state, so that the lifting plate 110 can stably support the mahjong tiles and improve the reliability and stability of the lifting mechanism 100.

[0090] In one embodiment, the tilting license plate issuing device based on the foregoing embodiments, such as Figure 4 As shown, the driving gear 130 is provided with a plurality of first teeth 133 circumferentially, wherein two adjacent first teeth 133 extend along the direction away from the rotation axis of the driving gear 130 and are connected to form a large convex tooth 134. The driven gear 140 is configured as an incomplete gear, and the driven gear 140 is provided with a plurality of second teeth 143 circumferentially, and a clearance groove 142 that cooperates with the large convex tooth 134 is formed between two adjacent second teeth 143.

[0091] The driving gear 130 and the driven gear 140 are driven by meshing through the first tooth 133 and the second tooth 143, and the large convex tooth 134 meshes with the clearance groove 142, so that the driving gear 130 and the driven gear 140 are always meshed.

[0092] By setting a large convex tooth 134 and a clearance groove 142, when assembling the drive gear 130 and the driven gear 140, the large convex tooth 134 is engaged in the clearance groove 142, thereby ensuring the accuracy of the installation of the drive gear 130 and the driven gear 140. Since the first lever 131 and the second lever 141 alternately move the protrusion 160, ensuring the accuracy of the installation of the drive gear 130 and the driven gear 140 can ensure the accuracy of the movement of the lifting linkage 150, thereby improving the accuracy of the swinging and lifting of the lifting plate 110.

[0093] In one embodiment, the first shift block 131 is positioned opposite to the large convex tooth 134, and the first shift block 131 extends toward and connects with the large convex tooth 134. The drive gear 130 is integrally formed by injection molding.

[0094] By extending the first lever 131 toward the large convex tooth 134 and connecting it with the large convex tooth 134, the mold design of the drive gear 130 is simplified and the mold cost is reduced. At the same time, the connection between the first lever 131 and the large convex tooth 134 avoids deformation caused by material shrinkage during the cooling process at the joint position, thereby improving the stability of the product quality of the drive gear 130.

[0095] It is understood that in some other embodiments, the driven gear 140 may be provided with a plurality of second teeth 143 circumferentially, wherein two adjacent second teeth 143 extend in a direction away from the rotation axis of the driven gear 140 and are connected to form a large convex tooth 134, the driving gear 130 is configured as an incomplete gear, the driving gear 130 is provided with a plurality of first teeth 133 circumferentially, and a clearance groove 142 that cooperates with the large convex tooth 134 is formed between two adjacent first teeth 133.

[0096] It is understood that in some other embodiments, the second lever 141 may be positioned opposite the large convex tooth 134, and the second lever 141 may extend toward and connect with the large convex tooth 134. The driven gear 140 is integrally formed by injection molding.

[0097] In one embodiment, the tilting license plate issuing device based on the foregoing embodiments, such as Figure 10 As shown, the card lifting mechanism 100 also includes a connecting rod cover 170. The pusher bracket 210 is provided with a guide groove 216 extending along the length direction of the card lifting plate 110 on one side near the card lifting plate 110. The connecting rod cover 170 covers the guide groove 216. The connecting rod cover 170 and the guide groove 216 define the sliding space of the card lifting connecting rod 150.

[0098] In this way, a sliding space is formed on the pusher bracket 210 to guide the sliding of the lifting link 150, ensuring that the lifting link 150 can slide between the first and second positions along the sliding path defined by the sliding space, thus ensuring the accuracy of the sliding of the lifting link 150.

[0099] In one embodiment, the tilting license plate issuing device based on the foregoing embodiments, such as Figures 11 to 14As shown, the card lifting mechanism 100 also includes a card lifting rocker arm 180, which is rotatably connected to the card pushing bracket 210. The card lifting plate 110 is provided with a lifting groove 111. One end of the card lifting rocker arm 180 extends into the lifting groove 111, and the other end of the card lifting rocker arm 180 is provided with a strip groove 182. One end of the card lifting connecting rod 150 is provided with a transmission pin 151 that cooperates with the strip groove 182. The sliding of the card lifting connecting rod 150 drives the card lifting rocker arm 180 to swing through the cooperation of the transmission pin 151 and the strip groove 182. The swinging motion of the card lifting rocker arm 180 acts on the lifting groove 111 to drive the card lifting plate 110 to swing and rise.

[0100] It is understood that in some other embodiments, the other end of the lifting arm 180 may be provided with a transmission pin 151, and one end of the lifting link 150 may be provided with a strip groove 182 that cooperates with the transmission pin 151. The strip groove 182 is inclined to accommodate the transmission pin 151 whose height changes as the lifting arm 180 rotates.

[0101] The sliding motion of the lifting link 150 is a linear motion. In order to convert the linear motion of the lifting link 150 into the swinging motion of the lifting rocker arm 180, a transmission pin 151 and a slot 182 are set to realize the conversion between the two motions. The width of the slot 182 is sufficient for the transmission pin 151 to slide in the slot 182. The length of the slot 182 is greater than its width, so that the slot 182 can cooperate with the moving transmission pin 151. Thus, the sliding motion of the lifting link 150 causes a force to be generated between the slot wall of the slot 182 and the transmission pin 151. This force becomes the driving force for the rotation of the lifting rocker arm 180. The lifting groove 111 is located below the lifting plate 110. One end of the lifting rocker arm 180 is provided with a drive unit 181. The drive unit 181 extends into the lifting groove 111 and can move freely within the lifting groove 111. When the lifting rocker arm 180 swings, the change in the vertical position of the drive unit 181 will push different groove walls of the lifting groove 111, causing the lifting plate 110 to swing with the lifting rocker arm 180.

[0102] With the above settings, the sliding of the tile-raising linkage 150 drives the tile-raising plate 110 to swing and rise, thereby cooperating with the tile-pushing mechanism 200 to complete the pushing and raising of mahjong tiles.

[0103] In some other embodiments, the other end of the lifting arm 180 can also be connected to the lifting rod 150 via a gear and rack mechanism to achieve the swinging of the lifting arm 180. The gear can be an incomplete gear, that is, composed of a portion of continuous teeth from a complete gear.

[0104] In one embodiment, the tilting license plate issuing device based on the foregoing embodiments, such as Figure 2 , Figure 12As shown, the card-lifting mechanism 100 also includes a first sensor 310, which is used to detect the card-lifting state of the card-lifting plate 110. The first sensor 310 is triggered during the process of the convex arc surface 132 and the concave arc surface 164 engaging.

[0105] The first sensor 310 is triggered by the component to be detected, thereby determining that the lifting plate 110 is in the lifting state. The component to be detected can be the lifting plate 110, the lifting linkage 150, or the driving gear 130 or the driven gear 140. The first sensor 310 can be a Hall element, triggered by a magnetic element on the component to be detected; the first sensor 310 can also be a photoelectric sensor, triggered by a through hole on the component to be detected; the first sensor 310 can also be a distance sensor, triggered when the component to be detected approaches the first sensor 310. When the first sensor 310 is triggered, the lifting motor 120 stops rotating, keeping the lifting plate 110 in the lifting state. Furthermore, due to the convex-concave fit between the convex surface 132 and the concave surface 164, the lifting plate 110 can be stably maintained in the lifting state.

[0106] By setting the first sensor 310, the lifting plate 110 stops the lifting motor 120 after lifting the mahjong tiles onto the table of the automatic mahjong machine. At the same time, the first sensor 310 is triggered during the interaction between the convex arc surface 132 and the concave arc surface 164, so that the lifting plate 110 can be locked in the lifting state, preventing the lifting plate 110 from swinging and falling due to the gravity of the mahjong tiles, and further improving the operational reliability and stability of the lifting mechanism 100.

[0107] In one embodiment, the tilting license plate issuing device based on the foregoing embodiments, such as Figure 2 , Figure 11 , Figure 12 As shown, the card-lifting mechanism 100 also includes a second sensor 320. The card-lifting plate 110 swings down so that one end of it connects to the card outlet 2151 and is in the card-receiving state. The second sensor 320 is used to detect that the card-lifting plate 110 is in the card-receiving state. The first sensor 310 and the second sensor 320 are mounted on the same circuit board 300.

[0108] The second sensor 320 is triggered by the component to be detected, thereby determining that the tile-lifting plate 110 is in the tile-lifting state. The component to be detected can be the tile-lifting plate 110, the tile-lifting connecting rod 150, or the driving gear 130 or the driven gear 140. The second sensor 320 can be a Hall element, triggered by a magnetic element on the component to be detected; the second sensor 320 can also be a photoelectric sensor, triggered by a through hole on the component to be detected; the second sensor 320 can also be a distance sensor, triggered when the component to be detected approaches the second sensor 320. When the second sensor 320 is triggered, the tile-lifting plate 110 is in the tile-receiving state, the tile-lifting motor 120 stops rotating, and the tile-lifting plate 110 is in the tile-receiving state waiting for the tile-pushing component 220 to push the mahjong tiles onto the tile-lifting plate 110. The start signal of the tile-pushing component 220 can also be triggered by the detection signal of the second sensor 320.

[0109] By setting the second sensor 320, the tile-lifting mechanism 100 can detect that the tile-lifting plate 110 is in the tile-receiving state, thereby stopping the rotation of the tile-lifting motor 120. At the same time, the detection signal of the second sensor 320 can also be used as the start signal of the tile-pushing component 220. The tile-pushing component 220 performs the tile-loading step of the tilting tile-loading device by pushing the mahjong tiles in the tile-pushing slot 215 to the tile-lifting plate 110.

[0110] The first sensor 310 and the second sensor 320 are mounted on the same circuit board 300, but located at different positions on the same circuit board 300. The first sensor 310 and the second sensor 320 can be Hall elements, triggered by the same magnetic element on the component under test at different positions, or triggered by different magnetic elements on the component under test. The first sensor 310 and the second sensor 320 can also be photoelectric sensors, correspondingly located in through holes on the component under test. By cooperating, the first sensor 310 and the second sensor 320 detect the position on the component under test, thereby detecting that the card-raising plate 110 is in the card-receiving state. For example: The component to be tested is provided with a through hole, which corresponds to the first sensor 310 and the second sensor 320 at different positions, or different through holes correspond to the first sensor 310 and the second sensor 320 respectively. When the lifting plate 110 is in the lifting state, the second sensor 320 is blocked by the component to be tested, and the first sensor 310 corresponds to the through hole and detects that the lifting plate 110 is in the lifting state; when the lifting plate 110 is in the receiving state, the first sensor 310 is blocked by the component to be tested, and the second sensor 320 corresponds to the through hole and detects that the lifting plate 110 is in the receiving state.

[0111] By setting the second sensor 320, the lifting motor 120 can be stopped when the lifting plate 110 is in the receiving state. The detection signal of the second sensor 320 is also used as the start signal of the pushing mechanism 200, so that the lifting mechanism 100 can cooperate with the pushing mechanism 200 to complete the pushing and lifting of the tilting plate device. At the same time, the first sensor 310 and the second sensor 320 are installed on the same circuit board 300, and the two sensors can be assembled in the same assembly process, reducing assembly costs.

[0112] 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. A tilting tile feeding device of an automatic mahjong machine, comprising: a tile pushing mechanism, comprising a tile pushing support, wherein a tile pushing groove for storing mahjong tiles is arranged on the tile pushing support; and a tile lifting mechanism, installed on the tile pushing support; characterized in that the tile lifting mechanism comprises a tile lifting motor, a tile lifting plate, a driving gear, a driven gear and a tile lifting link, the tile lifting motor drives the driving gear to rotate, the driving gear meshes with the driven gear to drive the driven gear, the tile lifting link slides between a first position and a second position, a protrusion is arranged on the tile lifting link, a first knob synchronously rotates with the driving gear, the first knob pushes the protrusion to push the tile lifting link to slide to the first position, a second knob synchronously rotates with the driven gear, the second knob pushes the protrusion to push the tile lifting link to slide to the second position, the first knob and the second knob alternately push the protrusion to make the tile lifting link reciprocate to drive the tile lifting plate to swing up and down. The protrusion comprises a first protrusion and a second protrusion, the first knob pushes the first protrusion, the second knob pushes the second protrusion, a transmission ratio of the driving gear to the driven gear is 1:N, N is a positive integer, a quantity ratio of the first knob to the second knob is 1:N.

2. The inclined tile delivery device of the automatic mahjong machine according to claim 1, wherein, The first protrusion and the second protrusion are arranged on the same side of the tile lifting link, the driving gear and the driven gear rotate in opposite directions; 3. The inclined tile delivery device of the automatic mahjong machine according to claim 2, wherein, or, The first protrusion and the second protrusion are arranged on two sides of the tile lifting link, the driving gear and the driven gear are correspondingly arranged on the two sides of the tile lifting link, the driving gear and the driven gear rotate in the same direction. The protrusion comprises a lifting protrusion, a first pushing part and a second pushing part are arranged on two sides of the lifting protrusion respectively, the first knob pushes the first pushing part, the second knob pushes the second pushing part, the driving gear and the driven gear rotate in opposite directions.

4. The tilting tile delivery device of the automatic mahjong machine according to claim 1, wherein, 5. The tilting tile feeding device of the automatic mahjong machine according to claim 1, characterized in that: the tile lifting link is located at the first position to make the tile lifting plate swing up to a tile lifting state, a convex arc surface is arranged on the first knob, a concave arc surface is arranged on the protrusion, the convex arc surface and the concave arc surface are matched to lock the tile lifting plate in the tile lifting state; or, the tile lifting link is located at the second position to make the tile lifting plate swing up to a tile lifting state, a convex arc surface is arranged on the second knob, a concave arc surface is arranged on the protrusion, the convex arc surface and the concave arc surface are matched to lock the tile lifting plate in the tile lifting state. The tile lifting mechanism further comprises a first sensor, the first sensor is used to detect the tile lifting state of the tile lifting plate, the first sensor is triggered in the matching process of the convex arc surface and the concave arc surface.

6. The tilting tile delivery device of the automatic mahjong machine according to claim 5, wherein, The tile lifting mechanism further comprises a second sensor, the tile lifting plate swings down to make one end of the tile lifting plate connect a tile outlet to be in a tile receiving state, the second sensor is used to detect that the tile lifting plate is in the tile receiving state, the first sensor and the second sensor are installed on the same circuit board.

7. The tilting tile delivery device of the automatic mahjong machine according to claim 6, wherein, 8. The tilting tile feeding device of the automatic mahjong machine according to claim 1, characterized in that: ​ The driving gear is provided with a plurality of first tooth portions in the circumferential direction, wherein two adjacent first tooth portions extend in the direction away from the rotation axis of the driving gear and are connected to form a large tooth, The first shifting block is opposite to the position of the large tooth, and the first shifting block extends to the large tooth and is connected to the large tooth. Or, The driving gear is provided with a plurality of first tooth portions in the circumferential direction, wherein two adjacent first tooth portions extend in the direction away from the rotation axis of the driving gear and are connected to form a large tooth, The second shifting block is opposite to the position of the large tooth, and the second shifting block extends to the large tooth and is connected to the large tooth.

9. The inclined tile delivery device of the automatic mahjong machine according to claim 1, wherein, The card lifting mechanism further comprises a card lifting rocker arm, the card lifting rocker arm is rotationally connected to the card pushing support, the card lifting plate is provided with a lifting groove, One end of the card lifting rocker arm extends into the lifting groove, Or, One end of the card lifting rocker arm extends into the lifting groove, The other end of the card lifting rocker arm is provided with a strip-shaped groove, and one end of the card lifting connecting rod is provided with a transmission pin matched with the strip-shaped groove, 10. The tilting tile delivery device of the automatic mahjong machine according to claim 1, wherein, Or, The other end of the card lifting rocker arm is provided with a transmission pin, and one end of the card lifting connecting rod is provided with a strip-shaped groove matched with the transmission pin, The sliding of the card lifting connecting rod drives the card lifting rocker arm to swing through the cooperation of the transmission pin and the strip-shaped groove, and the swinging of the card lifting rocker arm acts on the lifting groove to drive the card lifting plate to swing and lift. The card lifting mechanism further comprises a connecting rod pressing cover, one side of the card pushing support close to the card lifting plate is provided with a guide groove extending along the length direction of the card lifting plate, and the connecting rod pressing cover covers the guide groove, and the connecting rod pressing cover and the guide groove define a sliding space of the card lifting connecting rod.

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