TW202222390A - Mahjong tile feeding transmission mechanism of full-automatic mahjong machine - Google Patents

Abstract

The invention discloses a mahjong tile feeding transmission mechanism of a full-automatic mahjong machine, and aims to overcome the defects of high complexity, difficulty in assembly and maintenance and expensive accessories due to the fact that sensors and motors are matched for all linkage components in an existing mahjong machine. The mahjong tile feeding transmission mechanism comprisesa driving motor connected to a mahjong tile storage disc, a gear train and a mahjong tile storage rail groove formed in the mahjong tile storage disc, the gear train drives a telescopic arm and a lifting push rod to move, the driving motor drives the gear train to rotate so as to drive the telescopic arm to rotate, the end of the telescopic arm is arranged in the mahjong tile storage rail groove, and the lifting push rod is in transmission connection with a mahjong tile feeding strip. The telescopic arm and a lifting push rod intermittently move through a transmission system. According to thestructure, through intermittent fit between the gear trains, the use of a motor and a sensor is reduced, the structure is simplified, assembly is convenient, and the cost is reduced.

Description

Automatic electric mahjong table card transmission mechanism

The invention relates to a driving mechanism for playing cards, especially a driving mechanism for playing cards on a fully automatic electric mahjong table.

Press, as we all know, the general electric mahjong table is driven by multiple motors. Due to the difference in performance between the motor and the motor, the more motors, the more the positioning ability and the working consistency between the components will be affected. And the structure is complex, especially the number of motors that provide power to the push-up card mechanism of the electric mahjong table has the greatest impact, because to make the four-sided mahjong tiles be pushed up on the table at the same time, the number of motors that provide power to the push-up card mechanism is greater. Less is better. There are a large number of linkage components in the electric mahjong table. At present, the linkage components are often used to cooperate with the sensor and the motor. This method is complicated, difficult to assemble and maintain, and the accessories are expensive. There is an urgent need for a way to reduce the number of sensors and motors. It is a transmission mechanism that uses mechanical linkage to carry out the linkage.

Chinese Patent Bulletin No. CN201127837, titled Automatic Mahjong Machine, this application discloses an automatic Mahjong machine, comprising: a box body composed of a panel, a bottom plate and a peripheral panel, the center of the panel is provided with a card slot and a card slot , a card shuffling mechanism arranged under the card slot, a card stacking mechanism arranged at the end of the conveyor belt in the card shuffling mechanism, a self-adjusting mechanism for large and small mahjong tiles arranged above the three corners of the groove rail; arranged on the bottom plate Push-up cards located under the above-mentioned groove rails Mechanism, wherein a motor of the power transmission device in the push-up mechanism can drive the main drive shaft and the secondary drive shaft at the same time, and the above-mentioned main drive shaft and the secondary drive shaft are perpendicular to each other, thereby simultaneously driving the two parties' brand-raising swing device and the brand-pushing swing device connecting rod device. Compared with the prior art, because one motor can simultaneously drive the push-up action of the mahjong tiles in two directions, other device components connected with the above-mentioned power transmission device are also simplified, so that the present invention has simple structure, accurate positioning ability and noise. Small. It has the disadvantages that the linkage parts are matched with sensors and motors, and the complexity is high, the assembly and maintenance are difficult, and the accessories are expensive.

In view of the above problems, the present invention overcomes the shortcomings of high complexity, difficult assembly and maintenance, and expensive accessories, which are used by the sensors and motors used in the linkage components in the current electric mahjong table, and provides a fully automatic electric mahjong table. The above brand transmission mechanism, which can reduce the sensor and the motor, use the interlocking gear to perform intermittent movement.

In order to achieve the above purpose, the card transmission mechanism of the fully automatic electric mahjong table of the present invention is installed on a card storage tray, and the card storage transmission mechanism includes a drive motor, a card storage track groove, and a gear set. The drive motor is connected to the card storage tray; the card storage track slot is arranged on the card storage tray; and the gear set is driven to connect a telescopic arm and a lift push rod, the end of the telescopic arm is set in the card storage track slot, the telescopic arm and the The lift push rod is driven to move intermittently by transmission.

The gear set of the present invention includes a driving gear, a driven gear and a drag gear. The drive gear is connected with the output shaft of the driving motor. The driving gear meshes with the driven gear and the drag gear respectively. The top of the drag gear is provided with Through the straight-through slot hole of the telescopic arm, the telescopic arm is inserted and slidably connected in the straight-through slot hole.

The driven gear of the present invention includes an upper driven gear and a lower driven gear, the upper driven gear and the lower driven gear are coaxially arranged, and the upper driven gear has more teeth than the lower driven gear.

The drag card gear of the present invention comprises a straight through slot hole connected to the top, a middle tooth segment and an arc-shaped elevation at the lower part and a plurality of transmission teeth, and the transmission teeth are adjacent to the arc-shaped elevation and are integrally formed, A toothless segment is arranged in the middle of the tow card gear, and both ends of the toothless segment are connected with the middle toothed segment.

The gear set of the present invention also includes a lifting gear. The lifting gear has a bottom, a middle and a top layer. The bottom is provided with an arc-shaped bottom surface track groove. The meshing intervention port divides the top layer into two circular arc facades, one large and one small, and a plurality of teeth are arranged on the circular arc facade, and the teeth are engaged with the transmission teeth.

The card storage tray of the present invention is provided with a gear cover, the gear cover is mounted on the gear set, the outer periphery of the gear cover is provided with a curved guide groove corresponding to the shape of the card storage track groove, and a roller is connected in the middle of the telescopic arm. The rollers are rotatably connected in the curved guide grooves.

The lifting push rod of the present invention is connected with an upper card bar, one end of the lifting push rod is provided with a roller, and the other end is provided with a rack, the roller is rotatably connected in the track groove of the arc bottom surface, and the rack is meshed and connected with a rocker arm. A roller is arranged on the arm, a hook-shaped curved guide groove is arranged on the upper card strip, and the roller is rotatably connected in the hook-shaped curved guide groove.

In the present invention, the arc-shaped elevation is convex outward, the arc-shaped elevation is concave inward, and the arc-shaped elevation and the arc-shaped elevation fit together.

The top of the lifting gear of the present invention is provided with an induction magnet, the top of the gear cover is arranged with a magnetron sensor on the moving path of the induction magnet, and the magnetron sensor is coupled to a driver.

One end of the telescopic arm of the present invention close to the straight through slot is connected with a sheath, and the sheath is Plastic material.

The teeth of the present invention are integrated with the teeth layer in the middle.

The effect of the present invention is to provide a full-automatic electric mahjong table top card transmission mechanism, which is driven by a gear set to connect the telescopic arm and the lifting push rod respectively, so that the two will not interfere with each other when they move, realize the card playing function, and then overcome the general The electric mahjong table has the disadvantages of high cost, difficult assembly and high complexity.

Another effect of the present invention is to provide a fully automatic electric mahjong table top card transmission mechanism, which reduces the use of motors and sensors, simplifies structure, facilitates assembly and reduces costs through intermittent cooperation between gear sets.

Another effect of the present invention is to provide an automatic electric mahjong table upper card transmission mechanism, which meshes with the upper driven gear through the driving gear, and directly meshes with the middle tooth segment of the drag card gear, and the lower driven gear and the lifting gear. gear layer meshing. The above arrangement makes it possible to maintain a certain distance between the two when both have a suitable rotational speed, so as to provide space for the arrangement of the telescopic arm and the lift push rod.

Another effect of the present invention is to provide an automatic electric mahjong table top card transmission mechanism, which utilizes the middle tooth segment of the drag card gear to enter an intermittent state instead of using it directly.

Another effect of the present invention is to provide a card transmission mechanism on a fully automatic electric mahjong table. The two arc elevations have different lengths, and the arc elevations and the arc elevations fit together, and are used for dragging card gears. When it is in a standstill state, position the drag gear to prevent it from rotating arbitrarily.

Another effect of the present invention is to provide an automatic electric mahjong table top card transmission mechanism, which is integrated with the gear layer in the middle by the teeth, so that the teeth and the gear layer have better strength.

Another effect of the present invention is to provide a card transmission mechanism on a fully automatic electric mahjong table, which is concentric with the arc elevation and the arc elevation. The lifting gear on which the convex arc façade is located can be rotated.

Another effect of the present invention is to provide a card transmission mechanism on a fully automatic electric mahjong table, which uses a sheath instead of the telescopic arm itself to rub against the straight through slot to improve the friction between the two.

1: drive gear

2: drive motor

3: Card storage tray

4: Card storage track slot

5: driven gear

6: Upper driven gear

7: Lower driven gear

8: Tow card gear

9: Straight through slot

10: Middle tooth segment

11: Curved Facade

12: No tooth segment

13: Transmission teeth

14: Telescopic boom

15: Roller

16: Lifting gear

17: Arc bottom track groove

18: Gear Layer

19: Engage the access port

20: Arc facade

21: Teeth

22: Induction magnet

23: Gear cover

24: Magnetron sensor

25: Curved guide groove

26: Strips

27: Lifting putter

28: Rack

29: rocker arm

30: Hook-shaped curve guide groove

31: Sheath

FIG. 1 is a schematic structural diagram of a card transmission mechanism on an electric mahjong table according to a first embodiment of the present invention.

FIG. 2 is a schematic structural diagram of the card transmission mechanism on the electric mahjong table omitting the card storage tray according to the first embodiment of the present invention.

FIG. 3 is a schematic structural diagram of the card transmission mechanism on the electric mahjong table according to the first embodiment of the present invention omitting the card storage tray and the gear cover.

FIG. 4 is a schematic structural diagram of the transmission structure of the present invention.

FIG. 5 is a perspective view of the driving gear meshing with the driven gear according to the present invention.

FIG. 6 is a perspective view of the engagement between the driving gear and the drag gear of the present invention.

FIG. 7 is a perspective view of the driven gear meshing with the lift gear according to the present invention.

FIG. 8 is a perspective view of the drag gear and the lift gear meshing with each other according to the present invention.

FIG. 9 is a perspective view of the lifting gear and the driving of the card bar according to the present invention.

FIG. 10 is a perspective view of the lifting gear of the present invention.

FIG. 11 is a perspective view of the drag gear of the present invention.

The technical solutions of the embodiments of the present invention will be explained and described below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the examples in the implementation manner, other examples obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", " The orientation or positional relationship indicated by "back", "left", "right", "top", "bottom", "inside", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings , is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first" and "second" may expressly or implicitly include one or more features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise expressly defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be interpreted in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally formed connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the above can be understood according to the specific situation Specific meanings of terms in the present invention.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through the touch of another contact between them. Also, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and diagonally above the second feature, or simply means that the first feature level is higher than the second feature. The first feature being "below", "below" and "below" the second feature includes that the first feature is directly below and diagonally below the second feature, or simply means that the first feature level is lower than the second feature.

Certain terms are used in the specification and subsequent claims to refer to particular elements. It should be understood by those of ordinary skill in the art that hardware manufacturers may refer to the same element by different nouns. The scope of this specification and subsequent applications does not take the difference in name as a way to distinguish elements, but takes the difference in function of the elements as a criterion for distinguishing. The reference to "including" throughout the specification and subsequent claims is an open-ended term and should be interpreted as "including but not limited to".

Please refer to FIG. 1 to FIG. 3 together, which are schematic structural diagrams of the card transmission mechanism on the electric mahjong table according to a first embodiment of the present invention; the structural schematic diagram of the card storage tray is omitted; and the card storage tray and the gear cover are omitted. Schematic. As shown in the figure, the card transmission mechanism of the fully automatic electric mahjong table of the present invention is installed on a card storage tray 3, and the card transmission mechanism includes a drive motor 2, a card storage track slot 4, and a gear set. The drive motor 2 is connected to the card storage tray 3 . The card storage track slot 4 is arranged on the card storage tray 3 . The gear set is drivingly connected with a telescopic arm 14 and a lift push rod 27. The gear set drives the telescopic arm 14 and the lift push rod 27 to move, and the drive motor 2 drives the gear set to rotate to drive the telescopic arm 14 to rotate. The end of the telescopic arm 14 is set at In the card storage track slot 4, the lift push rod 27 is drivingly connected with a On the card strip 26, the telescopic arm 14 and the lift push rod 27 are driven to intermittently move by transmission.

As can be seen from the above, in the present invention, the telescopic arm 14 and the lifting push rod 27 are respectively driven and connected by the gear set, so that the two will not interfere with each other when they move, so as to realize the card-on-card function, and then overcome the high cost, assembly difficulty, etc. of the general electric mahjong table. The disadvantage of high complexity. Furthermore, the present invention reduces the use of motors and sensors, simplifies the structure, facilitates assembly and reduces costs through the intermittent cooperation between the gear sets.

As shown in FIG. 4 , the gear set includes a driving gear 1 , a driven gear 5 and a drag gear 8 . The driving gear 1 is connected with the output shaft of the driving motor 2, and the driving gear 1 meshes with the driven gear 5 and the drag gear 8 respectively. The top of the drag gear 8 is provided with a straight through slot 9 passing through the telescopic arm 14, and the telescopic arm 14 is inserted. Installed and slidably connected in the through slot 9. The moduli of the teeth matched in each gear in the gear set are the same, and all of them can mesh with each other. The center of the card storage tray 3 has a gear base for installing each gear, the gear base is a pit for positioning the gear, and the core of the gear base has a shaft for inserting the gear, and the gear is inserted after the shaft and used. The fasteners fasten the gears on the shaft to locate the gears. The driving gear 1 directly meshes with the drag gear 8, and the driven gear 5 meshes with a lifting gear 16. The top of the tow card gear 8 is integrally connected with a through slot 9 , and a reinforcing rib is connected between the through slot 9 and the top of the tow card gear 8 . In order to reduce the friction between the through slot 9 and the telescopic arm 14, a plastic layer is arranged on the telescopic arm 14 to improve the surface smoothness.

As shown in FIG. 5 , the driven gear 5 of the present invention includes an upper driven gear 6 and a lower driven gear 7 . The upper driven gear 6 and the lower driven gear 7 are coaxially arranged, and the number of teeth of the upper driven gear 6 is larger than that of the lower driven gear 7 . The driving gear 1 meshes with the upper driven gear 6 , and at the same time directly meshes with one of the middle tooth segments 10 of the drag gear 8 . The lower driven gear 7 meshes with the gear layer 18 of the lift gear 16 . The above arrangement makes it possible for both of them to be able to rotate when both have suitable rotational speeds. In order to maintain a certain distance, space is provided for the arrangement of the telescopic arm 14 and the lift push rod 27 .

As shown in FIG. 11 , the drag gear 8 includes a straight through slot hole 9 connected to the top, a middle tooth segment 10 , an arc-shaped vertical surface 11 and a plurality of transmission teeth 130 at the lower part. The transmission teeth 13 are adjacent to the arc-shaped vertical surface 11 and are integrally formed. A toothless segment 12 is provided in the middle of the drag card gear 8 , and both ends of the toothless segment 12 are connected to the middle toothed segment 10 . The through slot 9 is used as a base for the sliding connection of the telescopic arm 14 . Compared with its outer diameter, the middle tooth segment 10 has a segment without tooth segment 12 , when the driving gear turns into the toothless segment 12 , the two are disengaged from the meshing relationship, and the tow card gear 8 enters a resting state. The lower transmission teeth 13 are used for meshing with the teeth 21 on the lifting gear 16 to drive the drag gear 8 to enter the gear set again.

As shown in FIG. 10, the gear set further includes a lift gear 16, the lift gear 16 has a bottom, a middle and a top. The bottom is provided with an arc-shaped bottom surface track groove 17, the middle is provided with a gear layer 18, the top layer is provided with two concave meshing insertion openings 19, and the two meshing insertion openings 19 separate the top layer into two arcs, one large and one small. The vertical surface 20 is provided with a plurality of teeth 21 on the arc vertical surface 20 , and the teeth 21 are engaged with the transmission teeth 13 . The arc façade 20 is in contact with the arc façade 11, and is used for positioning the tug card gear 8 when the tug card gear 8 is in a resting state, so as to avoid its arbitrary rotation. The teeth 21 are integrated with the gear layer 18 in the middle. The above arrangement makes the teeth 21 and the gear layer 18 have better strength. The arc-shaped elevation 20 is convex outside, the arc-shaped elevation 11 is concave inward, and the arc-shaped elevation 20 and the arc-shaped elevation 11 fit together. The arcuate elevation 20 and the arcuate elevation 11 are concentric, and the above arrangement enables only the lifting gear 16 where the arcuate elevation 20 is located can rotate when the arcuate elevation 20 and the arcuate elevation 11 fit together.

As shown in FIG. 2 , a gear cover 23 is provided on the card storage tray 3 , the gear cover 23 is mounted on the gear set, and the outer periphery of the gear cover 23 is provided with a curved guide groove corresponding to the shape of the card storage track groove 4 25. A roller 15 is connected to the middle of the telescopic arm 14, and the roller 15 is rotatably connected to the curved guide groove 25. In order to guide the telescopic arm 14 to move on the card storage track slot 4, a gear cover 23 is provided on the card storage tray 3, The card storage track groove 4 and the curved guide groove 25 are both rectangular in shape with rounded corners, and the curved guide groove 25 is recessed inward at the position corresponding to the upper card strip 26 . When the telescopic arm 14 rotates under the action of the towing gear 8, when passing through this recess, the telescopic arm 14 will be pushed to retract, the retractable arm 14 will retract along the through slot 9, and reset after moving out of the recess. When passing through this position, the distal end of the telescopic arm 14 is retracted to pass through the predetermined gap, avoiding hitting adjacent components.

An induction magnet 22 is disposed on the top of the lift gear 16 , and a magnetron sensor 24 is disposed on the top of the gear cover 23 on the moving path of the induction magnet 22 , and the magnetron sensor 24 is coupled to a driver. When the lifting gear 16 completes one rotation, that is, when the induction magnet and the magnetron sensor 24 meet, it is recorded as a working cycle, and the magnetron sensor 24 controls the drive to stop working until the next working command is received.

As shown in FIG. 9 , the lift push rod 27 is connected to an upper card bar 26 in a driving manner. One end of the lift push rod 27 is provided with a roller 15, and the other end is provided with a rack 28. The roller 15 is rotatably connected to the track groove 17 on the arc-shaped bottom surface. The rack 28 is meshed with a rocker arm 29, the rocker arm 29 is provided with the roller 15, the upper card bar 26 is provided with a hook-shaped curved guide groove 30, and the roller 15 is rotatably connected in the hook-shaped curved guide groove 30. The arc-shaped bottom surface track groove 17 is formed by connecting the concave arc and the convex arc end to end. When the lift push rod 27 moves in the arc-shaped bottom surface track groove 17, when it is in the outer convex arc, the lift push rod 27 is pushed forward, and when it is in the inner concave arc, the lift push rod 27 is pulled back. The rack 28 is a double-sided rack, and a gear for positioning the rack 28 is fixedly connected to the machine body, and the two are meshed. And the tooth segment at one end of the rocker arm 29 meshed with the rack 28 on the other side meshes, and through the front and rear movement of the rack 28, the swing arm is driven to swing with the center of the tooth segment as the axis, and the roller 15 on the rocker arm 29 is on the card. The hook-shaped curved guide groove 30 of the bar 26 slides back and forth, so that the upper card bar 26 realizes the upper card movement. The shape of the hook-shaped curved guide groove 30 is a "~" shape. One end of the upper strip 26 remote from the rocker arm 29 is hingedly connected to the machine. Via roller 15 in The movement in the hook-shaped curved guide groove 30 realizes the function of "lifting up".

In addition, an end of the telescopic arm 14 close to the through slot 9 is connected with a sheath 31 (as shown in FIG. 2 ), and the sheath 31 is made of plastic material. In this way, the sheath 31 is used instead of the telescopic arm 14 itself to rub against the through slot 9, thereby increasing the frictional force between the two.

The telescopic arm 14 is used to push the mahjong to move around on the card storage tray 3 , and the card storage tray 3 has the function of whole cards. After the mahjong tiles move for one week in the card storage track slot 4 on the card storage tray 3, the mahjong tiles are sorted. The power for pushing the mahjong tiles to move on the card storage track slot 4 comes from the telescopic arm 14, and the telescopic arm 14 pushes the mahjong tiles. After finishing the arrangement, the mahjong tiles are pushed to the upper strip 26 and then placed on the table. The upper card strip 26 is connected by a lift and push rod 27. When the cards are arranged, they will be pushed to the upper card bar 26, and then the upper card bar 26 will be lifted and the mahjong tiles will be raised to the table. During this process, there is a lot of intermittent cooperation, the end of the telescopic arm 14 for abutting the mahjong tiles moves on the card storage track slot 4 , and the upper card strip 26 will also be on the path of the card storage track slot 4 . When the telescopic arm 14 pushes the mahjong tile onto the upper strip 26, the telescopic arm 14 needs to stop and wait for the upper strip 26 to clear the passage space when the upper strip 26 is lifted. In the past, these functions were used by connecting the corresponding driving mechanism and the corresponding sensor through the telescopic arm 14 and the transmission mechanism connected with the upper card strip 26, respectively. However, this method has the disadvantages of high cost, difficult assembly and high complexity. In order to solve these shortcomings, a gear train is used to drive and connect the telescopic arm 14 and the lift push rod 27 respectively, so that the two do not interfere with each other when they move, and the card-on function is realized.

As shown in Figures 6 to 8, when the machine sends a signal to the drive motor 2, the drive motor 2 rotates and drives the driving gear 1 to rotate. The driving gear 1 drives the drag gear 8 and the driven gear 5 to rotate respectively. At this time, the teeth on the driving gear 1 are in mesh with the end of the middle tooth segment 10 of the drag gear 8 . The rotation of the tow card gear 8 drives the telescopic arm 14 in the through slot 9 to rotate along the curved guide groove 25 on the gear cover 23 . The telescopic arm 14 avoids collision with other components through the curved guide groove 25 . The end of the telescopic arm 14 is pushing The moving mahjong tiles move on the card storage track slot 4. When it is about to complete one rotation, the middle tooth segment 10 is finished, the drag gear 8 rotates to the toothless segment 12, the middle tooth segment 10 is opposite to the toothless segment 12, and enters a rest state; at the same time, the driving gear 1 passes from the The moving gear 5 is then driven by the gear layer 18 of the lifting gear 16 to rotate the lifting gear 16 . When the arc-shaped bottom surface track groove 17 at the bottom of the lifting gear 16 is in an outwardly convex arc, the lifting push rod 27 is in an extended state. When it rotates to a certain angle, it turns into the concave arc, and the lift push rod 27 retracts. During the retraction process, the rack 28 retracts, which drives the swing arm to rotate. The terminal at the end of the swing arm is in the upper card bar 26. The arc-shaped bottom surface track groove 17 is rotated so that it is raised along the hinged end to be flush with the top surface of the table top. When the lift gear 16 rotates to the arc bottom track groove 17 at the bottom and the roller 15 is in the concave arc, the draw gear 8 has been in the "rest state" for a period of time. At this time, the driving teeth 13 at the bottom of the drag gear 8 mesh with the teeth 21 at the top of the lifting gear 16, which drives the drag gear 8 to rotate again. At this time, the upper card bar 26 rises, avoids the telescopic arm 14, and the telescopic arm 14 restores power and continues to rotate. Through the stop and recovery of the telescopic arm 14, the movement relationship between the telescopic arm 14 and the lift push rod 27 is rearranged, so that when the lift gear 16 rotates to raise the upper strip 26, the teeth 21 on the lift gear 16 must be It will mesh with the transmission teeth 13 on the tow card gear 8. During the upward movement of the upper card bar 26, the telescopic arm 14 will pass through, and the two will not interfere or collide.

During the stopping process, the driving gear 1 and the drag gear 8 are disengaged from the meshing relationship, and the drag gear 8 is in a free rotation state. The shaking of the outside world may cause shaking of the telescopic arm 14 . In order to avoid such shaking, the draw gear 8 is limited by the fit of the arc-shaped elevation 20 and the arc-shaped elevation 11 . This limit will continue until the arc surface 20 is rotated out to the meshing insertion port 19 facing the drag gear 8, ensuring smooth intermeshing when the arc surface 11 of the drag gear overlaps.

The invention is truly novel, progressive and available for industrial use, and it should meet the patent application requirements stipulated by the Patent Law of our country. I pray for the early approval of the patent by the Jun Bureau, and I sincerely pray.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. For example, all the equivalent changes in the shape, structure, feature and spirit described in the scope of the patent application of the present invention and Modifications should be included within the scope of the patent application of the present invention.

3: Card storage tray

4: Card storage track slot

8: Tow card gear

9: Straight through slot

15: Roller

23: Gear cover

26: Strips

Claims (11)

A fully automatic electric mahjong table upper card transmission mechanism, which is installed on a card storage tray, and the card upper transmission mechanism comprises: a drive motor, connected to the card storage tray; a card storage track slot disposed on the card storage tray; and A gear set is drivingly connected with a telescopic arm and a lift push rod, the end of the telescopic arm is arranged in the card storage track groove, and the telescopic arm and the lift push rod are driven to move intermittently through transmission. The fully automatic electric mahjong table playing card transmission mechanism as claimed in claim 1, wherein the gear set includes a driving gear, a driven gear and a card dragging gear, the driving gear is connected with the output shaft of the driving motor, and the driving The gears mesh with the driven gear and the drag gear respectively, the top of the drag gear is provided with a straight through slot through the telescopic arm, and the telescopic arm is inserted and slidably connected in the straight slot. The upper card transmission mechanism of the fully automatic electric mahjong table according to claim 2, wherein the driven gear comprises an upper driven gear and a lower driven gear, the upper driven gear and the lower driven gear are coaxially arranged, the The upper driven gear has more teeth than the lower driven gear. The card transmission mechanism on the fully automatic electric mahjong table as claimed in claim 2, wherein the drag card gear comprises a straight through slot connected to the top, a middle tooth segment and an arc-shaped elevation at the lower part and a plurality of transmission teeth , the transmission teeth are adjacent to the arc-shaped vertical surface and are integrally formed, a toothless segment is arranged in the middle of the tow card gear, and both ends of the toothless segment are connected with the middle toothed segment. The automatic electric mahjong table upper card transmission mechanism as claimed in claim 4, wherein the gear set further comprises a lifting gear, the lifting gear has a bottom, a middle and a top layer, the bottom is provided with an arc-shaped bottom track groove, and the middle is provided with a gear layer, the top layer is provided with two concave one meshing insertion openings, and the two meshing insertion openings separate the top layer into two circular arc facades, one large and one small, the circular arc facade is provided with a plurality of teeth, the teeth are Teeth mesh with the drive teeth. The fully automatic electric mahjong table card transmission mechanism as described in claim 1, wherein the A gear cover is arranged on the card storage tray, the gear cover is mounted on the gear set, the outer periphery of the gear cover is provided with a curved guide groove corresponding to the shape of the card storage track groove, and a roller is connected to the middle of the telescopic arm. The roller is rotatably connected in the curved guide groove. The automatic electric mahjong table upper card transmission mechanism as claimed in claim 5, wherein the lift push rod is connected to a card bar, one end of the lift push rod is provided with a roller, and the other end is provided with a rack, and the roller rotates Connected in the arc-shaped bottom surface track groove, the rack is engaged with a rocker arm, the rocker arm is provided with the roller, the upper card bar is provided with a hook-shaped curved guide groove, and the roller is rotatably connected to the hook-shaped in the curved guide. The automatic electric mahjong table upper card transmission mechanism as claimed in claim 5, wherein the arc-shaped elevation is convex, the arc-shaped elevation is concave, and the arc-shaped elevation is fitted with the arc-shaped elevation. The automatic electric mahjong table upper card transmission mechanism according to any one of claims 6 to 8, wherein an induction magnet is arranged on the top of the lifting gear, and a magnet is arranged on the movement path of the induction magnet on the top of the gear cover. A control sensor, the magnetron sensor is coupled to a driver. The transmission mechanism for playing cards on a fully automatic electric mahjong table according to any one of claims 6 to 8, wherein an end of the telescopic arm close to the through slot is connected with a sheath, and the sheath is made of plastic. The card transmission mechanism on the fully automatic electric mahjong table according to claim 5, wherein the teeth are integrated with the teeth layer in the middle.

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