Ultra-thin motor box of automatic mahjong machine

Abstract

The invention discloses an ultra-thin motor box of an automatic mahjong machine, and relates to the technical field of mahjong machine cases, the ultra-thin motor box comprises a table top, standing feet and a case, a tile mixing device is arranged at the top of the table top, a key control assembly is arranged in the bottom case, and a servo motor serves as a power source and is arranged on the inner wall side of the case; power is transmitted to four rotating rollers evenly distributed around the axis of a machine box through a driving gear and a driven gear, linkage is guaranteed through connecting bevel gears at the ends of the rotating rollers, stable rotation of supporting bases at the two ends is guaranteed, and a sealing plate moves away from a window along with the rotating rollers to open a heat dissipation channel. The sealing plate is reset when not used, dust is blocked, the supporting plate outside the sealing plate cooperates with the case bottom fixing table, the supporting plate supports the table top in use, and the overall strength is enhanced. The top of the fixed table is slidably connected with the rotating table, the fixed table and the rotating table are provided with staggered bottom communicating windows, the bottom communicating windows can be communicated when the rotating roller rotates, heat dissipation is assisted, and the problem that a traditional case is heavy due to dust prevention, heat dissipation and structural strength is solved.

Description

Technical Field

[0001] The invention relates to the technical field of mahjong machine chassis, in particular to an ultra-thin motor chassis of an automatic mahjong machine. Background Art

[0002] In the construction system of automatic mahjong machines, the chassis is the core load-bearing component, and its design and material selection play a key role in the performance of the whole machine. Usually, the chassis of a mahjong machine is in the shape of a cuboid or a nearly cuboid. Such a regular appearance design is designed to fit the complex internal mechanical structure layout to ensure that the mahjong tiles can be smoothly transported, shuffled, and other operations.

[0003] As for the internal structure of the chassis, the frame and key supporting structures are mostly made of metal materials, most commonly steel plates or aluminum alloys. This is because when the mahjong machine is running, the internal mechanical parts are running at high speed, which will inevitably produce vibrations. At the same time, various electronic components also need a stable support. The metal material, with its inherent high strength characteristics, can not only effectively resist the vibration impact during operation and ensure the structural stability of the chassis itself, but also provide a reliable installation base for many precision electronic and mechanical components, so that the entire mahjong machine system can operate stably.

[0004] However, looking at the mahjong machine chassis under the existing technology, there are more prominent drawbacks. On the one hand, in pursuit of excellent dustproof effect, the overall design of the chassis is relatively thick. The thick chassis structure does create conditions for creating a tight sealing system, which can greatly prevent low-pressure dust from invading the interior of the chassis, prevent dust from accumulating on the surface of electronic components and mechanical parts, and thus extend the service life of these key components. But the other side of the coin is that this design idea inevitably leads to the chassis "exceeding the standard" in both thickness and weight dimensions.

[0005] Not only that, the heat dissipation demand also adds a lot of weight to the chassis. In order to ensure that the electronic components and mechanical parts inside the chassis do not overheat during long-term operation, the existing heat dissipation solutions are often relatively extensive. For example, large-area heat dissipation fins are often used to increase the heat dissipation area, which makes the external structure of the chassis more complicated and large; or built-in high-power cooling fans, which themselves and the supporting motors, fixing frames and other components all add extra weight. As a result, as the thickness and weight of the chassis continue to rise due to the heat dissipation design, it brings many difficulties to the handling and moving of mahjong machines. Especially for mahjong machines that need to change the use site frequently, carrying a heavy chassis often requires more manpower and material costs, and users complain. For this reason, we propose an ultra-thin motor chassis for automatic mahjong machines to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an ultra-thin motor box for an automatic mahjong machine to solve the problems raised in the above background art.

[0007] To achieve the above invention object, the present invention adopts the following technical solutions:

[0008] An ultra-thin motor box for an automatic mahjong machine provided by the present invention includes a tabletop. A machine box is installed at the bottom of the tabletop. A control component is built in the machine box. The control component includes a servo motor. A driving gear is fixedly connected to the output end of the servo motor. A driven gear is arranged on one side of the driving gear. The driving gear is meshed and connected with the driven gear. A rotating roller is fixedly connected to one side of the driven gear. There are four rotating rollers. Connecting bevel gears are fixedly connected to one ends of the plurality of rotating rollers close to each other. A plurality of connecting frames are sleeved on the surface of the rotating roller. One end of the connecting frame is fixedly connected to the rotating roller. A closing plate is fixedly connected to the end of the connecting frame far from the rotating roller. A plurality of side wall communication windows penetrating through the machine box itself are opened around the machine box. A support plate is fixedly connected to the side of the closing plate far from the center of the machine box. A fixed platform is fixedly connected to the bottom of the inner cavity of the machine box. A rotating platform is arranged on the top of the fixed platform. Bottom communication windows penetrating through the fixed platform and the rotating platform are respectively opened on the tabletop of the rotating platform and the fixed platform. The bottom communication windows on the surfaces of the rotating platform and the fixed platform are distributed in a staggered manner. A trigger seat is fixedly connected to one side of the top of the rotating platform. An inclined surface is opened on the top of the trigger seat. A shifting rod is arranged at the inclined surface. The shifting rod is slidably connected to the inclined surface. The end of the shifting rod far from the trigger seat extends to the rotating roller and is fixedly connected thereto.

[0009] Preferably, a card mixer is installed on the top of the tabletop, and standing feet are fixedly connected to the four sides of the bottom of the tabletop.

[0010] Preferably, the servo motor is arranged inside the machine box and is close to one side of the inner wall of the machine box.

[0011] Preferably, the four rotating rollers are respectively arranged around the inner cavity of the machine box. The plurality of rotating rollers are meshed and connected through connecting bevel gears, and the plurality of rotating rollers are evenly distributed around the axis of the machine box.

[0012] Preferably, support seats are sleeved at both ends of the rotating roller. One end of the top of the support seat is rotatably connected to the rotating roller. The bottom of the support seat is fixedly connected to the bottom of the inner cavity of the machine box. The two support seats at both ends are symmetrically distributed along the axis of the rotating roller.

[0013] Preferably, the plurality of connecting frames are evenly distributed along the length direction of the rotating roller. The plate area of the closing plate matches the side wall communication window, and the periphery of the closing plate is slidably connected to the inner wall of the side wall communication window.

[0014] Preferably, the rotating table is arranged at the bottom of the inner cavity of the chassis, and the rotating table is slidably connected to the table top of the fixed table.

[0015] Preferably, the plurality of bottom communication windows are evenly distributed around the axis of the rotating table and the fixed table, and the axis of the fixed table, the rotating table and the chassis coincide.

[0016] Preferably, a fixing ring is sleeved on the surface of the servo motor, an inner ring wall of the fixing ring is fixedly connected to the servo motor, and one side of the fixing ring is fixedly connected to one side of the inner wall of the chassis.

[0017] Preferably, a fixed roller is sleeved in the middle of the rotating table, the rotating table is rotatably connected to the fixed roller, and the bottom of the fixed roller is fixedly connected to the fixed table.

[0018] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0019] The ultra-thin motor case of the automatic mahjong machine of the present invention is similar to a conventional mahjong machine in appearance, and comprises a tabletop, a stand and a case. A card mixer is provided on the top of the tabletop, and a key control component is built into the bottom case.

[0020] Its core control component uses a servo motor as the power source, which is placed on the inner wall of the chassis and fixed by a fixing ring. After starting, the power is transmitted to four rotating rollers evenly distributed around the axis of the chassis through the driving gear and the driven gear. The connecting bevel gears at the ends of the rotating rollers ensure linkage, and the support seats at both ends ensure stable rotation. The connecting frame on the surface of the rotating roller cooperates with the closing plate, and a connecting window is set on the side wall of the chassis. When in use, the servo motor is started, and the closing plate moves away from the window with the rotating roller to open the heat dissipation channel; when idle, the closing plate is reset to block dust.

[0021] The structure is further optimized, and the support plate outside the closed plate cooperates with the fixed platform at the bottom of the chassis. The support plate supports the desktop during use to enhance the overall strength. The top of the fixed platform is slidably connected to the rotating platform, and the two have dislocated bottom communication windows. The rotating platform is linked to the rotating roller through the fixed roller, the trigger seat, and the toggle rod. When the rotating roller rotates, the bottom communication window can be connected to assist in heat dissipation.

[0022] It solves the problem of traditional chassis being heavy due to the need to take into account dust prevention, heat dissipation, and structural strength. It adapts to modern needs with an ultra-thin form, saves space, and is easy to install and carry. It can flexibly adjust heat dissipation and dust prevention according to the status of the mahjong machine to extend the life of internal components. The support plate improves the structural stability and ensures long-term stable operation. It has found a perfect balance between the practicality and beauty of automatic mahjong machines and is expected to open a new chapter in the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings forming a part of this invention are used to provide a further understanding of the invention. The schematic embodiments of the invention and their descriptions are used to explain the invention and do not unduly limit the invention.

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a schematic diagram of the overall side structure of the present invention;

[0026] Figure 3 is a schematic diagram of the assembly structure of the closing plate and the chassis of the present invention;

[0027] Figure 4 is a schematic diagram of the control component structure of the present invention;

[0028] Figure 5 is a schematic diagram of the movement state structure of the closing plate of the present invention;

[0029] Figure 6 is a schematic diagram of the assembly structure of the rotating table and the fixed table of the present invention;

[0030] Figure 7 is of the present invention Figure 4 schematic diagram of the enlarged structure at position A in.

[0031] In the figure:

[0032] 1, desktop; 101, card shuffler; 102, standing feet; 2, chassis; 3, control component; 301, servo motor; 302, fixed ring; 303, driving gear; 304, driven gear; 305, rotating roller; 306, connecting bevel gear; 307, support seat; 308, connecting frame; 309, closing plate; 310, support plate; 311, side wall communication window; 312, fixed table; 313, rotating table; 314, bottom communication window; 315, fixed roller; 316, trigger seat; 317, inclined surface; 318, toggle rod. Detailed implementation manners

[0033] In order to enable those skilled in the art of this technology to better understand the solution of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0034] Please refer to Figures 1-7, the present invention provides an ultra-thin motor box for an automatic mahjong machine, including a tabletop 1. A card mixer 101 is installed on the top of the tabletop 1. Four feet 102 are fixedly connected to the periphery of the bottom of the tabletop 1. A machine box 2 is installed at the bottom of the tabletop 1. A control component 3 is built in the machine box 2. The control component 3 includes a servo motor 301. The servo motor 301 is arranged inside the machine box 2, close to one side of the inner wall of the machine box 2. A fixing ring 302 is sleeved on the surface of the servo motor 301. The inner wall of the inner ring of the fixing ring 302 is fixedly connected to the servo motor 301. One side of the fixing ring 302 is fixedly connected to one side of the inner wall of the machine box 2. The output end of the servo motor 301 is fixedly connected to a driving gear 303. A driven gear 304 is arranged on one side of the driving gear 303. The driving gear 303 is meshed and connected with the driven gear 304. A rotating roller 305 is fixedly connected to one side of the driven gear 304. There are four rotating rollers 305, which are respectively arranged around the inner cavity of the machine box 2. Connecting bevel gears 306 are fixedly connected to the ends of the multiple rotating rollers 305 close to each other. The multiple rotating rollers 305 are meshed and connected through the connecting bevel gears 306. The multiple rotating rollers 305 are evenly distributed around the axis of the machine box 2. Both ends of the rotating roller 305 are sleeved with support seats 307. One end of the top of the support seat 307 is rotatably connected to the rotating roller 305. The bottom of the support seat 307 is fixedly connected to the bottom of the inner cavity of the machine box 2. The two ends of the support seats 307 are symmetrically distributed along the axis of the rotating roller 305. Multiple connecting frames 308 are sleeved on the surface of the rotating roller 305. The multiple connecting frames 308 are evenly distributed along the length direction of the rotating roller 305. One end of the connecting frame 308 is fixedly connected to the rotating roller 305. The end of the connecting frame 308 far from the rotating roller 305 is fixedly connected to a closing plate 309. A plurality of side wall communication windows 311 penetrating through the machine box 2 are opened on the four sides of the machine box 2. The plate area of the closing plate 309 matches the side wall communication windows 311. The periphery of the closing plate 309 is slidably connected to the inner wall of the side wall communication windows 311. When the mahjong machine is in use, the servo motor 301 serves as a power source and is arranged inside the machine box 2 close to the inner wall. Its surface is fixedly connected to the inner wall of the machine box 2 through the fixing ring 302. After the servo motor 301 is started, the output end drives the driving gear 303 to rotate. The driving gear 303 is meshed with the driven gear 304, thereby transmitting the power to the driven gear 304. A rotating roller 305 is fixedly connected to one side of the driven gear 304. There are a total of four rotating rollers 305, which are respectively arranged around the inner cavity of the machine box 2. And the rotating rollers 305 are meshed and connected with each other through the connecting bevel gears 306 fixedly connected to their ends and are evenly distributed around the axis of the machine box 2. Both ends of the rotating roller 305 are sleeved with support seats 307. One end of the support seat 307 is rotatably connected to the rotating roller 305, and the other end is fixedly connected to the bottom of the inner cavity of the machine box 2, ensuring that the rotating roller 305 can rotate stably. Multiple connecting frames 308 evenly distributed along its length direction are sleeved on the surface of the rotating roller 305. One end of the connecting frame 308 is fixedly connected to the rotating roller 305, and the other end is fixedly connected to the closing plate 309.A plurality of sidewall communication windows 311 penetrating through itself are provided around the chassis 2. The plate surface area of the closing plate 309 matches the sidewall communication windows 311, and the periphery thereof is slidably connected to the inner wall of the sidewall communication windows 311. When the mahjong machine is in use, the servo motor 301 is started, the rotating roller 305 rotates to drive the connecting frame 308 and the closing plate 309 to move, so that the closing plate 309 moves away from the sidewall communication windows 311. At this time, the inside of the chassis 2 and the outside can achieve air circulation through the sidewall communication windows 311, improving the heat dissipation capacity; when the mahjong machine is not in use, the closing plate 309 is in a closed state, which can prevent dust from entering the inside of the chassis 2.

[0035] Furthermore, a support plate 310 is fixedly connected to the side of the closing plate 309 away from the center of the chassis 2, and a fixed table 312 is fixedly connected to the bottom of the inner cavity of the chassis 2. During use, the support plate 310 will also move to the bottom of the table 1 for support, improving the structural strength. A support plate 310 is fixedly connected to the side of the closing plate 309 away from the center of the chassis 2, and a fixed table 312 is fixedly connected to the bottom of the inner cavity of the chassis 2. During use, the support plate 310 will move to the bottom of the table 1 to play a supporting role, improving the overall structural strength.

[0036] Further, a rotating table 313 is provided on the top of the fixed table 312. The rotating table 313 is arranged at the bottom of the inner cavity of the chassis 2. The rotating table 313 is slidably connected to the tabletop of the fixed table 312. Both the rotating table 313 and the tabletop of the fixed table 312 are provided with a plurality of bottom communication windows 314 penetrating through themselves, and the plurality of bottom communication windows 314 are evenly distributed around the axes of the rotating table 313 and the fixed table 312. The axes of the fixed table 312, the rotating table 313, and the chassis 2 coincide. The bottom communication windows 314 on the surfaces of the rotating table 313 and the fixed table 312 are distributed in a staggered manner. A fixed roller 315 is sleeved in the middle of the rotating table 313, and the rotating table 313 is rotatably connected to the fixed roller 315. The bottom of the fixed roller 315 is fixedly connected to the fixed table 312. One side of the top of the rotating table 313 is fixedly connected with a trigger seat 316. An inclined surface 317 is provided at the top of the trigger seat 316. A toggle rod 318 is arranged at the inclined surface 317. The toggle rod 318 is slidably connected to the inclined surface 317. The end of the toggle rod 318 away from the trigger seat 316 extends to the rotating roller 305 and is fixedly connected thereto. A rotating table 313 is provided on the top of the fixed table 312. The rotating table 313 is slidably connected to the tabletop of the fixed table 312. Both are provided with bottom communication windows 314 evenly distributed around their own axes and are distributed in a staggered manner. The middle of the rotating table 313 is sleeved on the fixed roller 315 and is rotatably connected thereto. The bottom of the fixed roller 315 is fixed to the fixed table 312. One side of the top of the rotating table 313 is fixedly connected with a trigger seat 316. There is an inclined surface 317 at the top of the trigger seat 316. A toggle rod 318 is arranged at the inclined surface 317. One end of the toggle rod 318 is slidably connected to the inclined surface 317, and the other end extends to the rotating roller 305 and is fixedly connected thereto. When the rotating roller 305 rotates, the rotating table 313 is driven to move synchronously through the toggle rod 318, so that the bottom communication windows 314 on the surfaces of the rotating table 313 and the fixed table 312 are communicated with each other, and the heat dissipation capacity is improved by opening.

[0037] Working principle

[0038] During actual use, with the servo motor 301 as the power core, it is installed near the inner wall of the chassis 2 and is firmly connected to the inner wall of the chassis 2 by the fixing ring 302. After starting, the output end of the servo motor 301 drives the driving gear 303 to rotate. The driving gear 303 is tightly engaged with the driven gear 304, prompting the driven gear 304 to rotate, and then driving the rotating roller 305 fixed thereto to operate. At the same time, the four rotating rollers 305 are meshed with each other by the end connecting bevel gears 306 to achieve linkage, and they are evenly distributed around the axis of the chassis 2. Both ends of the rotating roller 305 are stably supported by the support seats 307. One end of the support seat 307 is rotatably connected to the rotating roller 305, and the other end is fixed to the bottom of the inner cavity of the chassis 2 to ensure the stable rotation of the rotating roller 305.

[0039] The surface of the rotating roller 305 is evenly sleeved with a plurality of connection frames 308, one end of the connection frame 308 is fixed to the rotating roller 305, and the other end is connected to the closing plate 309. The chassis 2 is provided with a side wall connecting window 311 adapted to the closing plate 309, and the two are slidably connected. When the mahjong machine is used, the servo motor 301 is started, and the rotating roller 305 rotates to drive the connection frame 308 and the closing plate 309 to move synchronously, so that the closing plate 309 is away from the side wall connecting window 311, and the air passage inside and outside the chassis 2 is opened to enhance the heat dissipation efficiency; when the mahjong machine is idle, the closing plate 309 resets the closing window to prevent dust from invading.

[0040] Bottom auxiliary heat dissipation and structural reinforcement: A support plate 310 is fixed on the outside of the closing plate 309, and a fixed platform 312 is provided at the bottom of the inner cavity of the chassis 2. During use, the support plate 310 moves to the bottom of the desktop 1 to provide support and strengthen the overall structural strength. A rotating platform 313 is provided on the top of the fixed platform 312, and the two are slidably connected. The bottom connecting windows 314 are evenly distributed and are misaligned with each other in the initial state. The middle part of the rotating platform 313 is sleeved with a fixed roller 315 and is rotatably connected thereto, and the bottom of the fixed roller 315 is fixed to the fixed platform 312. A trigger seat 316 is provided on one side of the rotating platform 313, and the inclined surface 317 on the top of the trigger seat 316 cooperates with the toggle rod 318. One end of the toggle rod 318 is connected to the rotating roller 305. When the rotating roller 305 rotates, it drives the toggle rod 318, thereby pushing the rotating platform 313 to slide, so that the bottom connecting window 314 is connected, and the bottom heat dissipation channel is opened.

[0041] While meeting the multiple requirements of the chassis 2 for dust prevention, heat dissipation and ensuring structural strength, the existing chassis 2 is effectively avoided from being too thick and heavy due to taking these functions into account, so that the motor chassis 2 can be used in the automatic mahjong machine in an ultra-thin form, saving space and facilitating installation, transportation and other operations.

[0042] The positions of the closing plate 309 and the rotating platform 313 can be flexibly controlled according to the different states of the mahjong machine in use and not in use to realize the opening and closing of the heat dissipation channel, which can not only ensure a good heat dissipation effect when in use, but also effectively prevent dust when idle, thereby improving the service life and stability of each control component 3 inside the chassis 2.

[0043] The support plate 310 can support the table top 1 when in use, thereby improving the structural strength of the entire automatic mahjong machine, making the overall structure more stable and reliable, and facilitating long-term stable operation.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ultra-thin motor box (2) for an automatic mahjong machine, characterized in that: The invention comprises a desktop (1), a chassis (2) is installed at the bottom of the desktop (1), a control component (3) is built in the chassis (2), the control component (3) comprises a servo motor (301), an output end of the servo motor (301) is fixedly connected to a driving gear (303), a driven gear (304) is arranged on one side of the driving gear (303), the driving gear (303) is meshedly connected to the driven gear (304), and a driven gear (304) is fixedly connected on one side. The rotating roller (305) is provided with four rotating rollers (305), and the ends of the plurality of rotating rollers (305) close to each other are fixedly connected to a connecting bevel gear (306), and the surface of the rotating roller (305) is sleeved with a plurality of connecting frames (308), one end of the connecting frame (308) is fixedly connected to the rotating roller (305), and the end of the connecting frame (308) away from the rotating roller (305) is fixedly connected to a closing plate (309), and the chassis (2) is provided with a plurality of The side wall of the enclosure (309) is connected to a communication window (311) extending through the enclosure (309); a side of the enclosure (309) away from the center of the enclosure (2) is fixedly connected to a support plate (310); a fixed platform (312) is fixedly connected to the bottom of the inner cavity of the enclosure (2); a rotating platform (313) is disposed on the top of the fixed platform (312); a plurality of bottom communication windows (314) extending through the enclosure (309) and the rotating platform (313) and the fixed platform (312) are disposed on the top of the rotating platform (313) and the fixed platform (312); ) are arranged at the bottom of the rotating platform (313), the bottom communicating windows (314) on the surface are staggered and distributed with each other, a trigger seat (316) is fixedly connected to one side of the top of the rotating platform (313), an inclined surface (317) is provided on the top of the trigger seat (316), a toggle rod (318) is arranged at the inclined surface (317), the toggle rod (318) is slidably connected to the inclined surface (317), and one end of the toggle rod (318) away from the trigger seat (316) extends to the rotating roller (305) and is fixedly connected thereto.

2. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: A card mixer (101) is installed on the top of the table top (1), and legs (102) are fixedly connected around the bottom of the table top (1).

3. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: The servo motor (301) is arranged inside the chassis (2), and the servo motor (301) is close to one side of the inner wall of the chassis (2).

4. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: The four rotating rollers (305) are respectively arranged around the inner cavity of the chassis (2), the plurality of rotating rollers (305) are meshedly connected via connecting bevel gears (306), and the plurality of rotating rollers (305) are evenly distributed around the axis of the chassis (2).

5. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: Both ends of the rotating roller (305) are sleeved with support seats (307); one end of the top of the support seat (307) is rotatably connected to the rotating roller (305); the bottom of the support seat (307) is fixedly connected to the bottom of the inner cavity of the chassis (2); and the support seats (307) at both ends are symmetrically distributed along the axis of the rotating roller (305).

6. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: The plurality of connection frames (308) are evenly distributed along the length direction of the rotating roller (305); the surface area of ​​the closing plate (309) matches the side wall connecting window (311); and the surrounding of the closing plate (309) is slidably connected to the inner wall of the side wall connecting window (311).

7. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: The rotating platform (313) is arranged at the bottom of the inner cavity of the chassis (2), and the rotating platform (313) is slidably connected to the surface of the fixed platform (312).

8. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: The plurality of bottom communication windows (314) are evenly distributed around the axes of the rotating platform (313) and the fixed platform (312), and the axes of the fixed platform (312), the rotating platform (313) and the chassis (2) coincide with each other.

9. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: A fixing ring (302) is sleeved on the surface of the servo motor (301), the inner ring wall of the fixing ring (302) is fixedly connected to the servo motor (301), and one side of the fixing ring (302) is fixedly connected to one side of the inner wall of the chassis (2).

10. The ultra-thin motor box (2) of an automatic mahjong machine according to claim 1, characterized in that: A fixed roller (315) is sleeved in the middle of the rotating platform (313), the rotating platform (313) is rotatably connected to the fixed roller (315), and the bottom of the fixed roller (315) is fixedly connected to the fixed platform (312).

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