CN212631690U

CN212631690U - Central lifting device of mahjong machine

Info

Publication number: CN212631690U
Application number: CN202021090840.9U
Authority: CN
Inventors: 阳琳
Original assignee: Individual
Current assignee: Espressif Smart Technology Zhejiang Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-03-02
Anticipated expiration: 2030-06-12

Abstract

The utility model provides a central lifting device of a mahjong machine, which comprises a central lifting seat, a dice disc component movably arranged on the central lifting seat, and a first driving motor, wherein the output shaft of the first driving motor is provided with a first transmission piece and a second transmission piece which are respectively connected with the output shaft of the motor through one-way bearings with opposite directions; the first transmission piece is used for driving the washing tray to rotate, and the second transmission piece is connected with the die tray assembly through a transmission mechanism and used for controlling the lifting of the die tray assembly. The utility model discloses a mahjong machine center elevating gear adopts the design through two driving mediums of one-way bearing installation motion opposite direction on same motor output shaft, has realized realizing the mahjong machine shuffling big dish rotation and the function that the dice dish goes up and down by a motor drive to make the structure of mahjong machine big dish part retrench more, the size is further optimized.

Description

Central lifting device of mahjong machine

Technical Field

The utility model relates to a chess and card entertainment setting, in particular to a central lifting device of a mahjong machine.

Background

The existing automatic mahjong machine comprises a mahjong machine table top, a mahjong inlet and a dice tray for opening and closing the mahjong inlet are arranged in the middle of the mahjong machine table top, a shuffling large tray forming the bottom of a shuffling barrel is arranged below the mahjong machine table top, two groups of driving mechanisms are respectively arranged on a bottom plate below the shuffling large tray, one group of driving mechanisms are used for driving the shuffling large tray to rotate, and the other group of driving mechanisms drive the dice tray to lift. By adopting the structure, two motors are required to be arranged on the two groups of driving mechanisms to be respectively used as power mechanisms, so that a larger mounting space is required, and the simplification and the further optimization of the size of the mahjong machine structure are not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in providing a mahjong machine center elevating gear through optimal design, the structure is retrencied more.

In order to solve the above problem, the utility model adopts the following technical scheme:

a central lifting device of a mahjong machine comprises a central lifting seat, a dice disc assembly movably mounted on the central lifting seat, and a first driving motor, wherein an output shaft of the first driving motor is provided with a first transmission piece and a second transmission piece, and the first transmission piece and the second transmission piece are respectively connected with an output shaft of the motor through one-way bearings in opposite directions; the first transmission piece is used for driving the washing tray to rotate, and the second transmission piece is connected with the die tray assembly through a transmission mechanism and used for controlling the lifting of the die tray assembly.

Furthermore, the die tray assembly comprises a die tray, a lifting pipe with one end connected with the die tray, and a lifting pipe fixing seat fixed at the other end of the lifting pipe; and is in clearance fit with the shaft hole of the limiting part at the end part of the supporting part on the central lifting seat.

Furthermore, the dice disc assembly further comprises a compression spring sleeved on the lifting pipe, one end of the compression spring is abutted against the upper end face of the lifting pipe fixing seat, and the other end of the compression spring is sleeved on the outer edge of the limiting part at the end part of the supporting part.

Optionally, the transmission mechanism includes a transmission gear set and a central lifting rocker arm coupled to each other, a roller is disposed at a far-axis end of the central lifting rocker arm, and a stress portion matched with and abutted to the roller is disposed on the lifting tube fixing seat; the second transmission part is a second shaft gear, and the second shaft gear drives the central lifting rocker arm to swing through the transmission gear set so as to jack the dice assembly to perform lifting action.

Furthermore, the transmission gear set comprises a first transmission gear meshed with the second shaft gear, a first bevel gear connected with the first transmission gear through a first central shaft, and a second bevel gear meshed with the first bevel gear and connected with the central lifting rocker arm rotating shaft.

Optionally, the transmission mechanism comprises a second transmission gear meshed with the second shaft gear, and a transmission cam connected with the second transmission gear through a second central shaft; the lifting pipe fixing seat is provided with a roller matched with the transmission cam, and the second shaft gear drives the transmission cam to rotate through the second transmission gear so as to support the dice assembly to perform lifting action.

Further, the transmission cam is an open type cylindrical cam.

Furthermore, a sliding groove is formed in the lifting pipe fixing seat, a strip-shaped protruding block matched with the sliding groove is arranged in the central lifting seat, and the sliding groove and the strip-shaped protruding block are assembled in a sliding mode to form limiting of the dice disc assembly in the vertical direction.

Furthermore, the central lifting device of the mahjong machine also comprises a position monitoring module, and the position monitoring module is used for sending a position sensing signal to a mahjong machine control system when the dice disc assembly ascends or descends.

Optionally, the position monitoring module is a light control panel installed on the central lifting seat.

Furthermore, the first transmission piece is a first shaft gear, and the first shaft gear is in meshed connection with an inner gear ring on the large dish washing disc.

Furthermore, the central lifting device of the mahjong machine also comprises a second driving motor, and the distances from the centers of output shafts of the first driving motor and the second driving motor to the rotation axis of the large washing plate are equal; and the second driving motor is in meshed connection with an inner gear ring on the large dish washing plate through a third shaft gear.

The utility model has the advantages as follows:

the utility model discloses a mahjong machine center elevating gear adopts the design through two driving mediums of one-way bearing installation motion opposite direction on same motor output shaft, has realized realizing the mahjong machine shuffling big dish rotation and the function that the dice dish goes up and down by a motor drive to make the structure of mahjong machine big dish part retrench more, the size is further optimized. And simultaneously, the utility model discloses still given the different designs of motor drive dice lifting structure to make it can adapt to the condition of various differences, improved the commonality of device.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the central lifting device of the mahjong machine of the utility model.

Fig. 2 is an exploded view of the central lifting device of the mahjong machine of the present invention.

FIG. 3 is a schematic structural view of a first embodiment of a transmission mechanism in the central lifting device of a mahjong machine according to the present invention.

Fig. 4 is a schematic view of the structure related to the shuffling big plate in the central lifting device of the mahjong machine of the utility model.

FIG. 5 is a schematic cross-sectional view of the central lifting device of the mahjong machine according to the present invention when the dice tray assembly is lifted.

FIG. 6 is a schematic cross-sectional view of the central lifting device of the mahjong machine of the present invention when the dice tray assembly is lowered.

FIG. 7 is a bottom view of the central lifting seat of the central lifting device of the mahjong machine of the present invention.

Fig. 8 is a schematic structural view of the dice tray assembly in the central lifting device of the mahjong machine of the present invention.

Fig. 9 is a schematic structural view of a second embodiment of the transmission mechanism in the central lifting device of the mahjong machine.

Detailed Description

For further understanding of the present invention, preferred embodiments of the present invention will be described below with reference to examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the claims of the present invention.

The utility model provides a central elevating gear of mahjong machine, refer to the embodiment shown in the attached figures 1-4, it includes central lift seat 1, movably mounted is in the dice subassembly on central lift seat 1 to and first driving motor 2. The output shaft of the first driving motor 2 is provided with a first transmission piece 3 and a second transmission piece 4, and the first transmission piece 3 and the second transmission piece 4 are respectively connected with the output shaft of the motor through one-

way bearings

5a and 5b in opposite directions. The first transmission piece 3 is used for driving the washing tray large disc 22 to rotate, and the second transmission piece 4 is connected with the die tray assembly through a transmission mechanism and used for controlling the lifting of the die tray assembly.

Specifically, the central lifting seat 1 comprises a base and a supporting part 10 positioned on the base, and the large dish washing tray 22 is installed on the supporting part 10 through a large circular hole 221 at the center of the large dish washing tray. The base of the central lifting seat 1 is provided with an accommodating cavity for mounting a motor and moving a die tray assembly, and the die tray assembly is movably mounted on the central lifting seat 1.

As shown in fig. 8, the die tray assembly includes a die tray 6, an elevator tube 7 having one end connected to the die tray 6, and an elevator tube holder 8 fixed to the other end of the elevator tube 7. The lifting pipe 7 is movably mounted on the central lifting seat 1 and is in clearance fit with the shaft hole of the limiting part 100 arranged at the end of the supporting part 10, and the lifting pipe fixing seat 8 is located in the central lifting seat 1.

In a further preferred embodiment, the dice tray assembly further includes a compression spring 9 mounted on the lift tube 7, wherein one end of the compression spring 9 abuts against the upper end surface of the lift tube holder 8, and the other end thereof is mounted on the outer edge of the stopper 100 at the end of the support portion. The spring is used to assist the lifting of the die tray assembly, the principle of which will be further explained later.

In the present embodiment, the first transmission member 3 and the second transmission member 4 mounted on the output shaft of the first driving motor 2 are a first shaft gear and a second shaft gear, respectively, which are mounted on the motor shaft through one-way bearings, respectively, so that the driving forces can be respectively output to the outside without affecting each other when the motor rotates in opposite directions.

Thus, in one illustrated embodiment, as shown in fig. 2 and 3, the transmission mechanism provided between the second transmission 4 and the die tray assembly comprises a transmission gear set and a central lifting rocker arm 11 coupled to each other.

The transmission gear set comprises a first transmission gear 12 engaged with the second transmission member 4, namely a second shaft gear, a first bevel gear 14 connected with the first transmission gear 12 through a first central shaft 13, and a second bevel gear 15 engaged with the first bevel gear 14 and connected with a rotating shaft of the central lifting rocker arm 11. The central lifting rocker arm 11 comprises a body connected to the shaft, and a roller 110 provided at a distal end of the body. The transmission gear set and the central lifting rocker arm 11 are both arranged on a designed mounting seat 23 matched with the transmission gear set to form a mechanism which is matched and meshed with each other.

On the other hand, the elevating tube fixing base 8 of the die tray assembly is provided with a force receiving portion 80 which is matched with and abutted against the roller 110, so that when the central elevating rocker arm 11 swings, the supporting of the die tray assembly can be realized through the force transmission between the roller 110 and the force receiving portion 80, and the elevating action of the die tray assembly is controlled.

In order to make the lifting action of the die tray assembly more stable, as shown in fig. 7 and 8, the lifting tube fixing base 8 is symmetrically provided with sliding grooves 82, correspondingly, the interior of the central lifting base 1 is provided with strip-shaped convex blocks 101 matched with the sliding grooves 82, and the two are assembled in a sliding manner to form the limit of the die tray assembly in the vertical direction.

Meanwhile, in order to control the lifting position of the dice disk assembly, a position monitoring module is further arranged and used for sending a position sensing signal to a mahjong machine control system when the dice disk assembly rises to or descends to a preset position. As a preferred embodiment, as shown in fig. 2 and 3, the position monitoring module is a light control panel 19 mounted on the central lifting base 1.

On the other hand, as shown in fig. 4, the first transmission member 3, i.e., the first shaft gear, mounted on the output shaft of the first driving motor 2 is engaged with the ring gear 220 on the wash plate platter 22, so that the wash plate platter 22 can be driven to rotate.

The working principle of the above mechanism is further explained with reference to fig. 5 and 6.

After one round of mahjong is played, a user presses down a lifting key switch on a dice tray, at the moment, a control system controls a first driving motor 2 to rotate towards a first direction to drive a second transmission piece 4, namely a second shaft gear, to rotate, and further drives a central lifting rocker arm 11 to swing through a transmission mechanism consisting of a first transmission gear 12, a first bevel gear 14 and a second bevel gear 15, so that the dice tray assembly is jacked up to be lifted; after reaching the preset position, the light control panel 19 sends a corresponding position signal to the control system, and the control system controls the first driving motor 2 to stop rotating, at this time, the roller 110 on the central lifting rocker arm 11 is just at the highest point, as shown in fig. 5.

At the moment, the mahjong tile returning port on the tabletop of the mahjong machine is in an open state, and a user can push all mahjong tiles on the tabletop into the mahjong tile returning port and fall onto the mahjong tile shuffling large plate. Then, the user presses down the lifting key switch on the dice tray again, the control system controls the first driving motor 2 to continue rotating towards the first direction, the central lifting rocker arm 11 is driven to swing, the roller 110 moves downwards from the highest point, and the dice tray assembly descends under the action of self gravity and the spring 9; after reaching the preset position, the light control panel 19 sends a corresponding position signal to the control system, and the control system controls the first driving motor 2 to stop rotating, so that the roller 110 on the central lifting rocker arm 11 is just at the lowest point, as shown in fig. 6. Correspondingly, the dice tray returns to the original position, and the card returning opening on the tabletop of the mahjong machine is closed. During descent of the die tray assembly, the rollers 110 on the central elevating rocker arm 11 lift the die tray assembly so that it can descend smoothly.

When the dice tray assembly is lowered to the preset position, the control system controls the first driving motor 2 to rotate in the opposite second direction, and the first transmission member 3, namely the first shaft gear, drives the large tray washing plate 22 to rotate so as to shuffle.

By adopting the design, the functions of rotation of the shuffling large plate and lifting of the dice plate of the mahjong machine can be realized by one motor drive, so that the structure of the large plate part of the mahjong machine is more simplified, and the size is further optimized.

It should be noted that the above only shows an embodiment of the present invention, and in another embodiment shown in fig. 9, the transmission mechanism can also be provided with a second transmission gear 16 engaged with the second transmission member 4, i.e. the second shaft gear, and a transmission cam 18 connected with the second transmission gear 16 through a second central shaft 17. Correspondingly, the lifting pipe fixing seat 8 can be provided with a roller 81 matched with the transmission cam 18, so that the second shaft gear can drive the transmission cam 18 to rotate through the second transmission gear 16, and then the lifting pipe fixing seat can lift the dice tray assembly by acting on the roller 81.

As a preferred embodiment, the driving cam 18 is an open cylindrical cam, and those skilled in the art can understand the working principle of the central lifting rocker arm by referring to the working process of the central lifting rocker arm, and the detailed description thereof is omitted here.

The above embodiments are only for the purpose of better understanding the general idea of the present invention, and it should be understood by those skilled in the art that the above central lifting rocker arm 11 or the transmission cam 18 may be designed in other forms, and the above description of the embodiments does not constitute a specific limitation to the scope of the present invention.

As a further preferred embodiment, as shown in fig. 1 and 2, the central lifting device of mahjong machine of the present invention further comprises a second driving motor 20, and the distances from the centers of the output shafts of the first driving motor 2 and the second driving motor 20 to the rotation axis of the large dish washing plate 22 are equal. Preferably, the first and

second driving motors

2 and 20 may be symmetrically disposed about the rotation axis of the large dish washing tray 22. As shown in fig. 4, the second driving motor 20 is engaged with the ring gear 220 of the large dish washer 22 through the third shaft gear 21.

By adopting the double-motor driving design, compared with the existing single-motor driving mode, the large disc runs more stably. Meanwhile, the stress of the large disc is more uniform when the large disc rotates due to the adoption of double-motor driving, so that structural deformation or abrasion caused by long-time unilateral stress is avoided, and the stability and the service life of the whole driving device are improved. In addition, because two motors are adopted for driving, the power requirement on a single motor is greatly reduced, the size of the corresponding selected motor can be further reduced, and the structure and the size of the whole driving device are further optimized.

The above description of the embodiments is only intended to help understand the method of the present invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a mahjong machine center elevating gear, includes central lift seat (1), the die dish subassembly of movable mounting on central lift seat (1) to and first driving motor (2), its characterized in that: a first transmission piece (3) and a second transmission piece (4) are mounted on an output shaft of the first driving motor (2), and the first transmission piece (3) and the second transmission piece (4) are respectively connected with the output shaft of the motor through one-way bearings (5a and 5b) with opposite directions; the first transmission piece (3) is used for driving the washing tray large disc (22) to rotate, and the second transmission piece (4) is connected with the dice disc assembly through a transmission mechanism and used for controlling the dice disc assembly to lift.

2. The central lifting device of mahjong machine as recited in claim 1, wherein: the die tray assembly comprises a die tray (6), a lifting pipe (7) with one end connected with the die tray (6), and a lifting pipe fixing seat (8) fixed at the other end of the lifting pipe (7); the lifting pipe (7) is movably arranged in the central lifting seat (1) and is in clearance fit with a shaft hole of the limiting piece (100) at the end part of the supporting part (10) on the central lifting seat (1).

3. The central lifting device of mahjong machine as recited in claim 2, wherein: the dice disc assembly further comprises a compression spring (9) sleeved on the lifting pipe, one end of the compression spring (9) is abutted to the upper end face of the lifting pipe fixing seat (8), and the other end of the compression spring is sleeved on the outer edge of the supporting part end limiting part (100).

4. The central lifting device of mahjong machine as recited in claim 2, wherein: the transmission mechanism comprises a transmission gear set and a central lifting rocker arm (11) which are mutually coupled, a roller (110) is arranged at the far shaft end of the central lifting rocker arm (11), and a stress part (80) which is matched with and abutted to the roller (110) is arranged on the lifting pipe fixing seat (8); the second transmission piece (4) is a second shaft gear, and the second shaft gear drives the central lifting rocker arm (11) to swing through the transmission gear set so as to jack the dice disk assembly to perform lifting action.

5. The central lifting device of mahjong machine as recited in claim 4, wherein: the transmission gear set comprises a first transmission gear (12) meshed with the second shaft gear, a first bevel gear (14) connected with the first transmission gear (12) through a first central shaft (13), and a second bevel gear (15) meshed with the first bevel gear (14) and connected with a rotating shaft of the central lifting rocker arm (11).

6. The central lifting device of mahjong machine as recited in claim 4, wherein: the transmission mechanism comprises a second transmission gear (16) meshed with the second shaft gear and a transmission cam (18) connected with the second transmission gear (16) through a second central shaft (17); the lifting pipe fixing seat (8) is provided with a roller (81) matched with the transmission cam (18), and the second shaft gear drives the transmission cam (18) to rotate through the second transmission gear (16) so as to jack the dice tray assembly to lift.

7. The central lifting device of mahjong machine as recited in claim 6, wherein: the transmission cam (18) is an open type cylindrical cam.

8. The central elevating device of mahjong machine as recited in any one of claims 2-7, wherein: the lifting pipe fixing seat (8) is provided with a sliding groove (82), the central lifting seat (1) is internally provided with a strip-shaped convex block (101) matched with the sliding groove (82), and the sliding groove (82) and the strip-shaped convex block (101) are assembled in a sliding mode to form limiting of the dice tray assembly in the vertical direction.

9. The central lifting device of mahjong machine as recited in claim 8, wherein: the mahjong table further comprises a position monitoring module, and the position monitoring module is used for sending a position sensing signal to a mahjong machine control system when the dice tray assembly ascends or descends.

10. The central lifting device of mahjong machine as recited in claim 9, wherein: the position monitoring module is a light control panel (19) arranged on the central lifting seat (1).

11. The central elevating device of mahjong machine as claimed in any one of claims 1-7, 9-10, wherein: the first transmission piece (3) is a first shaft gear, and the first shaft gear is meshed and connected with an inner gear ring (220) on the large dish washing plate (22).

12. The central lifting device of mahjong machine as recited in claim 11, wherein: the distance between the centers of output shafts of the first driving motor (2) and the second driving motor (20) and the rotation axis of the large dish washing plate (22) is equal; the second driving motor (20) is in meshed connection with an inner gear ring (220) on the large dish washing disc (22) through a third shaft gear (21).