Rotary positioning assembly and card deck machine

Abstract

This utility model relates to an entertainment facility, disclosing a rotating positioning component and a card dealing machine. The card dealing machine includes a rotating positioning directive, and the rotating positioning component includes a positioning component disposed between the part to be rotated and a support. The positioning component comprises a positioning component one (501) and a positioning component two (502). Positioning component one (501) includes a light-shielding plate (503) disposed at the support and a photoelectric switch (504) disposed at the part to be rotated. Positioning component two (502) includes a magnet (505) disposed at the support and a Hall switch disposed at the part to be rotated. This utility model, on the one hand, achieves effective control of the card dealing position through the cooperation of multiple light-shielding plates and photoelectric switches; on the other hand, it ensures that the card dealing machine has a precise initial position through the cooperation of the Hall switch and the magnet, providing a prerequisite for subsequent card dealing.

Description

Technical Field

[0001] This utility model relates to an entertainment facility, and more particularly to a card machine. Background Technology

[0002] Automatic card machines are a common entertainment facility. They generally have an automatic card-dealing function. Whether the card-dealing direction is accurate and whether the cards are concentrated during the card-dealing process will affect the user experience.

[0003] Currently, card dealing machines still suffer from inaccurate position control and inconsistent card dealing locations during the card dealing process. In particular, when a forced stop is required due to card dealing errors or unexpected situations, it is difficult to guarantee the accuracy of the card dealing location when the card dealing machine resumes dealing after restarting. Utility Model Content

[0004] This utility model addresses the problems existing in the prior art of card machines by providing a card machine base and a card machine.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: A rotary positioning assembly includes a positioning component disposed between the part to be rotated and the support. The positioning assembly includes a positioning component one and a positioning component two. Positioning component one includes a light-shielding plate disposed at the support and a photoelectric switch disposed at the part to be rotated. Positioning component two includes a magnet disposed at the support and a Hall switch disposed at the part to be rotated.

[0006] Preferably, there are multiple light-shielding plates that are evenly spaced around the rotation center of the part to be rotated on the support, and the photoelectric switch is a slot-type photoelectric switch.

[0007] Preferably, the light sheet is set vertically upwards, and the light-shielding sheet can block the infrared emitting tube and infrared receiving tube of the slotted photoelectric switch during the rotation of the card machine body on the base.

[0008] Preferably, the component to be rotated has an initial mating position on the support, and the Hall switch and magnet correspond to form the initial mating position between the component to be rotated and the support. Determining the initial position between the card machine body and the base based on the Hall switch and magnet allows for better control of the card dealing direction when the slotted photoelectric switch and light-shielding plate are used subsequently.

[0009] A card machine includes a base and a card machine body, and also includes the aforementioned rotation positioning component, wherein the base constitutes the support member and the card machine body constitutes the component to be rotated.

[0010] Preferably, the base includes a base body with a support leg assembly. The support leg assembly includes legs mounted on the base body, and the legs and base body have a mating stroke in the rotational direction about the center line of the base body. The support leg assembly also includes a buffer assembly for indirect contact between the legs and the base body, which provides resistance when the legs and base body move relative to each other at the mating stroke. The card machine body rotates on the base. During start-up and shutdown, the rotational impact force is transmitted to the base, which absorbs and cushions the energy through the buffer assembly, reducing mechanical vibration and noise, and improving the stability and service life of the rotating mechanism.

[0011] Preferably, the cushioning assembly includes two cushioning springs disposed on the base body and respectively pressed against both sides of the support leg.

[0012] Preferably, the base body is provided with a foot mounting position, which includes a mating groove arranged in the rotation direction around the center line of the base body. The foot includes a mating part located in the mating groove. The length of the mating part is less than the length of the mating groove, and the movement stroke of the mating part in the mating groove constitutes the mating stroke. A column is provided on the mating part. The foot mounting position is provided with two spring mounting seats located above the mating groove and distributed on both sides of the column. There are two spring mounting seats, and spring mounting grooves are formed inside that open towards the column. Two buffer springs are respectively arranged in the two spring mounting grooves, and their ends extend out of the spring mounting grooves and abut against the side of the column.

[0013] Preferably, the card machine body includes a card compartment and a transmission compartment distributed vertically. The transmission compartment houses a rotary motor for rotating the card machine body, a card dispensing motor for distributing cards from the card compartment, and a battery for powering the card machine body. The battery is located within the transmission compartment and directly above the rotary motor. The rotary motor, card dispensing motor, and battery are all positioned at the rotation center of the card machine body. This rational arrangement of the rotary motor, card dispensing motor, and battery ensures that the overall center of gravity of the card machine is as close as possible to its rotation center, guaranteeing stability during rotation. Furthermore, it minimizes the size and height of the card machine, resulting in a compact design and stable operation.

[0014] Preferably, the rotary motor includes a motor body and a gearbox. A drive wheel is connected to the output shaft of the gearbox. The rotary motor is fixed to the bottom surface of the transmission chamber. A rotating gear plate connected to the drive wheel via a synchronous belt is located at the center of the bottom surface of the transmission chamber. The common center of gravity of the rotary motor, the card-dealing motor, and the battery is located on the central axis of the rotating gear plate. By concentrating the rotary motor, the card-dealing motor, and the battery in one location, and ensuring that their common center of gravity is on the central axis of the rotating gear plate, the center of gravity of the entire card machine is essentially located at the center of rotation, guaranteeing rotational stability.

[0015] This utility model, by adopting the above technical solution, has significant technical effects: This invention, on the one hand, uses multiple light-shielding plates in conjunction with photoelectric switches to control the operation of the card-dealing motor and the rotary motor by blocking the light path to trigger signal conversion, thereby achieving effective control of the card-dealing position. On the other hand, the combination of Hall switches and magnets ensures that the card-dealing machine has a precise initial position, providing a prerequisite for subsequent card dealing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure after the outer shell has been removed.

[0018] Figure 3 This is a schematic diagram of the card machine base structure in Embodiment 2 of this utility model.

[0019] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0020] Figure 5 This is a schematic diagram of the support leg assembly structure in Embodiment 1 of this utility model.

[0021] Figure 6 This is a schematic diagram of the support component structure in Embodiment 2 of this utility model.

[0022] Figure 7 yes Figure 3 Schematic diagram of the bottom structure.

[0023] Figure 8 yes Figure 7 Enlarged view of part A in the middle.

[0024] Figure 9 This is a schematic diagram of the battery distribution in Embodiment 4 of this utility model.

[0025] Figure 10 yes Figure 9 Enlarged view of part A in the middle.

[0026] Figure 11 This is a schematic diagram of the card machine structure in Embodiment 5 of this utility model. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Example 1 In this embodiment 1, a card machine, such as Figures 1-5As shown, it includes a card machine base and a card machine body 2 that can rotate on the card machine base.

[0029] The card machine base includes a base body 1, on which multiple support leg components 3 are provided. The base body 1 is disc-shaped and has multiple support leg components 3 evenly spaced along the circumference of the base body 1.

[0030] In this embodiment, the base body 1 is provided with four support leg components 3. Of course, two, three or more support leg components 3 can be provided.

[0031] The support leg assembly 3 includes a support leg 301 mounted on the base body 1. The support leg 301 and the base body 1 have a mating stroke in the rotational direction about the center line of the base body 1. Specifically: In this embodiment, the support leg 301 includes an arc-shaped plate-shaped support base 309 and a mating part 302 disposed on the upper end surface of the support base 309. The support base 309 is disposed on the lower end surface of the base body 1 and located at the edge of the base body 1. The mating part 302 has the same shape as the support base 309, both being arc-shaped plates and smaller in size than the support base 309.

[0032] The base body 1 is provided with a support foot mounting position. The support foot mounting position includes a plurality of mating grooves 101 arranged in the rotation direction around the center line of the base body 1. The mating part 302 is located in the mating groove 101. The length of the mating part 302 is less than the length of the mating groove 101 and the movement stroke of the mating part 302 in the mating groove 101 constitutes the mating stroke.

[0033] The base body 1 includes a base plate 102 and an annular sidewall 103. The base plate 102 has an arc-shaped support mounting hole 104. The support mounting hole 104 has a groove top plate 105 arranged parallel to the base plate 102. The groove top plate 105 constitutes the top panel of the mating groove 101. The mating groove 101 is formed by the hole wall of the mating hole 106 and the groove bottom plate 102. The opening of the mating groove 101 is downward. The shape of the mating groove 101 is the same as the shape of the mating part 302 and the size is larger than the size of the mating part 302, so that the mating part 302 can have a movement stroke in the mating groove 101, that is, the mating stroke.

[0034] The support leg assembly 3 also includes a buffer assembly 4 for achieving indirect contact between the support leg 301 and the base body 1. The buffer assembly 4 is used to provide resistance when the support leg 301 and the base body 1 move relative to each other at the mating stroke. In this embodiment, the buffer assembly 4 includes two buffer springs 401 disposed on the base body 1 and respectively pressed against both sides of the support leg 301.

[0035] A column 303 is provided on the mating part 302. At the support foot mounting position, spring mounting seats 304 are provided above the mating groove 101 and distributed on both sides of the column 303. There are two spring mounting seats 304, each with a spring mounting groove 305 opening towards the column 303. Two buffer springs 401 are respectively disposed within the two spring mounting grooves 305, with their ends extending out of the grooves and abutting against the side of the column 303. A support foot mounting plate 306 is mounted on the upper surface of the column 303, and the support foot mounting plate 306 can overlap the upper surface of the spring mounting seats 304. In this embodiment, the support mounting plate 306 is fixed to the upper surface of the column 303 by bolts. The entire support assembly 3 is mounted in the support mounting hole 104 of the base body 1 by overlapping the support mounting plate 306 with the spring mounting seat 304. There is an anti-slip pad mounting groove on the lower end surface of the support seat 309. An elastic anti-slip pad 310 is installed in the anti-slip pad mounting groove. The elastic anti-slip pad 310 can be installed in the anti-slip pad mounting groove by means of bonding or hot melting. The elastic anti-slip pad 310 includes, but is not limited to, a rubber pad, and its bottom surface protrudes from the lower end surface of the support seat 309.

[0036] The top plate 105 of the slot is provided with a mating hole 106 for the column 303 to pass through. A mating distance 307 corresponding to the mating stroke is left between the mating hole 106 and the column 303. The spring mounting seat 304 is fixed on the upper surface of the bottom plate 102.

[0037] During operation, the card dealing machine body 2 rotates relative to the base. When the card dealing machine starts or stops rotating, the force generated by the rotation acts on the base through the card dealing machine body 2, and the base acts on the support leg assembly 3, causing the base to move relative to the support leg assembly 3. During this process, the buffer spring 401 is compressed to buffer the rotation and reduce the impact force, keeping the card dealing machine stable during operation. Buffer springs 401 are provided on both sides of the column 303. Regardless of whether the card dealing machine rotates forward or backward, a buffer spring 401 will be compressed, achieving a good vibration reduction effect. Moreover, it can also allow the base and support leg assembly 3 to eventually return to their initial state, maintaining a balanced and stable position of the support leg 301 when stationary.

[0038] Meanwhile, in this embodiment, the buffer component 4 set between the base and the support leg 301 is used for buffering and shock absorption. It is completely separated from the internal transmission structure and card dealing structure of the card machine body 2, and does not interfere with the rotation and card dealing actions of the card machine. The vibration generated during the start-up and stop process is directly transmitted to the support leg 301 through the base without affecting the rotation transmission. The overall structure is more reasonable and more stable.

[0039] Example 2 Same as in Example 1, such as Figures 6-8As shown, the difference is that in this embodiment, in addition to the buffer spring 401, the buffer assembly 4 also includes two damping components 402 disposed between the base body 1 and the support leg 301. In this embodiment, the damping component 402 is a cylindrical component, which can be made of elastic materials such as rubber, silicone, and polyurethane.

[0040] The upper guide groove 107 is provided on the lower end surface of the groove top plate 105, and the lower guide groove 308 is provided on the upper end surface of the mating part 302. The length direction of the upper guide groove 107 and the lower guide groove 308 are consistent with the length direction of the mating groove 101. The damping member 402 is disposed between the upper guide groove 107 and the lower guide groove 308, and the two ends of the damping member 402 are respectively pressed against the two ends of the upper guide groove 107 along the length direction.

[0041] During the start-up or shutdown process, the card machine body 2 transmits the rotational impact force to the base, causing the base to rotate and sway slightly. During this process, the damping component 402 is squeezed to absorb energy, further reducing vibration during the start-up and shutdown phases, thereby reducing noise and improving operational stability.

[0042] Meanwhile, the damping component 402 works in conjunction with the buffer spring 401 to buffer and absorb the rotational inertia, reduce the force on the base, and make the entire card machine more stable when stopped.

[0043] Example 3 Same as in Example 1 or Example 2, such as Figure 3 , Figure 9 as well as Figure 10 As shown, the difference is that the card machine in this embodiment is also provided with a rotation positioning component. The rotation positioning component includes a positioning component disposed between the part to be rotated and the support component. The base constitutes the support component, and the card machine body 2 constitutes the part to be rotated.

[0044] The positioning components include positioning component one 501 and positioning component two 502. Positioning component one 501 includes a light shield 503 disposed on the support and a photoelectric switch 504 disposed on the part to be rotated. The light shield is vertically upward and the light shield 503 can block the infrared emitting tube and infrared receiving tube of the slotted photoelectric switch during the rotation of the card machine body 2 on the base. Positioning component two 502 includes a magnet 505 disposed on the support and a Hall switch (not shown in the figure) disposed on the part to be rotated. The Hall switch and the slotted photoelectric switch are both commercially available conventional components and are electrically connected to the PCB board.

[0045] Among them, there are multiple light-shielding plates 503, which are evenly spaced around the rotation center of the rotating part on the support. The photoelectric switch 504 is a slotted photoelectric switch. The card machine body 2 is also equipped with a mounting plate. The mounting plate is equipped with a PCB board for controlling the photoelectric switch 504 and the Hall switch. The PCB board cooperates with the photoelectric switch 504 and the Hall switch. During the rotation of the card machine body 2, the slotted photoelectric switch will follow the movement, and then make it move relative to the light-shielding plate 503. When the light-shielding plate 503 moves between the infrared emitting tube and the infrared receiving tube of the slotted photoelectric switch in sequence, it blocks the light path and triggers the signal conversion. The PCB board controls the card dealing motor 204 and the rotation motor 203 to operate according to the signal of the photoelectric switch 504, thereby realizing effective control of the card dealing position.

[0046] The number of light-blocking plates 503 is unlimited; in this embodiment, 12 are selected to accommodate various card-dealing modes for two, three, or four players or multiples thereof. The card machine body 2 is equipped with a power switch and control keys. Users can adjust the number of cards dealt, the number of players, and other card-dealing modes using the control keys. Programs can be written to pre-import different numbers of cards for different numbers of players, such as selecting different card-dealing modes based on different numbers of players, and setting the card-dealing motor to deal cards after the photoelectric switch is blocked a certain number of times in different modes, making it convenient for users to use directly.

[0047] To ensure more accurate card dealing, the rotating component has an initial mating position on the support. When the Hall switch and magnet 505 correspond, the initial mating position between the rotating component and the support is formed. Upon power-on, it first checks whether the Hall switch and magnet 505 can sense each other. If not, the PCB board controls the rotary motor 203 to rotate the card machine body 2 to the position corresponding to the Hall switch and magnet 505. This is the initial origin position between the card machine body 2 and the support. At this point, the card machine is ready. Then, based on this initial position, as well as the photoelectric switch and light shield, it accurately deals cards. This combination of two positioning components enables more precise control of the card dealing position. At the same time, determining the initial position upon power-on can also prevent problems such as inaccurate card dealing position or incoordination of the upper and lower positions of the card machine due to human error or accidents (e.g., if both the base and the card machine body are square, misalignment will lead to an uncoordinated overall appearance).

[0048] Example 4 Same as in Embodiment 1, 2, or 3, such as Figure 2 , Figure 9As shown in the embodiment, the card machine body 2 includes a card compartment 201 and a transmission compartment 202 distributed vertically. The card compartment 201 forms a compartment body composed of a card base plate 206 and a card side plate 207. The compartment body is open, which facilitates the stacking of cards in the compartment body. The card side plates 207 on both sides limit the cards. The two ends of the compartment body form a card outlet 213 and a card inlet 214, respectively. A card dispensing roller is provided on the card base plate 206 and located at the card inlet 214. The card dispensing roller pushes the cards to the card outlet 213 for dispensing.

[0049] The transmission chamber 202 is equipped with a rotary motor 203 for driving the card machine body 2 to rotate, a card dispensing motor 204 for dispensing cards from the card compartment 201, and a battery 205 for supplying power to the card machine body 2. The battery 205 is located inside the transmission chamber 202 and directly above the rotary motor 203. The rotary motor 203, the card dispensing motor 204, and the battery 205 are all arranged at the rotation center of the card machine body 2.

[0050] Specifically, the rotary motor 203 includes a motor body 209 and a gearbox 210. A drive wheel is connected to the output shaft of the gearbox 210. The rotary motor 203 is fixed on the bottom surface of the transmission chamber 202. A rotary gear disk 212 connected to the drive wheel via a synchronous belt is provided at the center of the bottom surface of the transmission chamber 202. The common center of gravity of the rotary motor 203, the card-dealing motor 204, and the battery 205 is located on the central axis of the rotary gear disk 212.

[0051] The arrangement of the rotary motor 203, the card-distributing motor 204, and the battery 205 ensures that the overall center of gravity of the card machine body 2 is as close as possible to its rotation center, guaranteeing stability during rotation. On the other hand, it minimizes the size and height of the card machine. Compared to existing card machines with the battery 205 mounted on the top, this arrangement allows the card compartment 201 to be open, making it easier to put cards into the compartment. Compared to existing card machines with the battery 205 mounted on the rear side, the battery 205 is located at the center of the card machine body 2, enabling more stable rotation and ensuring a smoother card-distributing process.

[0052] In addition, the structural form of the card machine body 2 in this embodiment can also be adapted to the arrangement of the battery 205, the card dealing motor 204, and the rotary motor 203, as follows: In this embodiment, the card compartment 201 includes a card base plate 206 and a card side plate 207. The lower end face of the card base plate 206 forms a battery mounting surface, and a battery mounting seat 208 for mounting a battery 205 is fixed on the battery mounting surface. The bottom surface of the battery 205 is planar, and the upper end face of the rotary motor 203 is a supporting plane that supports the bottom of the battery 205. In this embodiment, the battery 205 can be, but is not limited to, a rechargeable lithium battery 205. Its shape is such that both the upper and lower end faces are planar, which facilitates its installation and better cooperation with the rotary motor 203. The outer shell of the rotary motor 203 is also constructed with both the upper and lower end faces being planar, so that the lower bottom surface of the battery 205 can be supported on the upper end face of the motor housing. The lower end face of the motor housing is directly mounted on the base plate 102 of the transmission compartment 202, reducing the height occupied by the battery 205 and the rotary motor 203 in the transmission compartment 202.

[0053] Additionally, the card base plate 206 is inclined downward from the card inlet 214 end to the card outlet 213 end. The rotary motor 203 and the card dispensing motor 204 are distributed on both sides of the central axis of the rotary gear disk 212, with the rotary motor 203 closer to the card inlet 214 side and the card dispensing motor 204 closer to the card outlet 213 side. The card base plate 102 forms the top plate of the transmission chamber 202. A support assembly is provided between the bottom plate 102 of the transmission chamber 202 and the card base plate 206. The support assembly includes a support seat 216 set at the card outlet 213 end and a support column 215 set at the card inlet 214 end. The height of the support column 215 is higher than the height of the support seat 216.

[0054] The card base plate 206 is tilted, and the rotary motor 203 and the card dealing motor 204 are arranged based on this tilted card base plate 206. On the one hand, this tilts the upper surface of the card base plate 206 from the card inlet 214 end to the card outlet 213 end, which is conducive to transporting cards to the card outlet 213. On the other hand, the height of the rotary motor 203 in the transmission compartment 202 is higher than the height of the card dealing motor 204, which provides space for the battery 205 to be installed above the rotary motor 203. This makes the overall structure of the card compartment 201 and the transmission compartment 202 compact, with a reasonable vertical distribution, small size, low center of gravity and height, and stable rotation and card dealing movement.

[0055] To further ensure the stability and smoothness of the card dealing, the base is equipped with multiple evenly distributed ball bearing mounting posts. The upper end of each ball bearing mounting post is fitted with a ball bearing that contacts the lower end of the card machine body. This allows the card machine body to rotate on the base, and the friction between the card machine body and the base can be rolling friction, ensuring the smoothness and stability of their relative rotation.

[0056] Example 5 Same as any one of embodiments 1-4, such as Figure 11As shown, this embodiment also provides another structural form of the card machine body, which is non-open type. The card machine bases in embodiments 1-4 can all be directly applied to the card machine body of this embodiment.

[0057] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0058] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A rotary positioning assembly, comprising a positioning component disposed between the part to be rotated and the support, characterized in that: The positioning components include positioning component one (501) and positioning component two (502). Positioning component one (501) includes a light shield (503) disposed on the support and a photoelectric switch (504) disposed on the part to be rotated. Positioning component two (502) includes a magnet (505) disposed on the support and a Hall switch disposed on the part to be rotated.

2. The rotary positioning assembly according to claim 1, characterized in that: The light-shielding plates (503) are multiple and are evenly spaced on the support around the rotation center of the part to be rotated, and the photoelectric switch (504) is a slotted photoelectric switch.

3. The rotary positioning assembly according to claim 2, characterized in that: The light sheet is set vertically upwards, and the light shield (503) can block the infrared emitting tube and infrared receiving tube of the slotted photoelectric switch during the rotation of the card machine body (2) on the base.

4. The rotary positioning assembly according to claim 1, characterized in that: The part to be rotated has an initial mating position on the support. When the Hall switch corresponds to the magnet (505), the initial mating position between the part to be rotated and the support is formed.

5. A card machine, comprising a base and a card machine body (2), characterized in that: It also includes the rotation positioning component as described in any one of claims 1-4, wherein the base constitutes the support member and the card machine body (2) constitutes the component to be rotated.

6. A card machine according to claim 5, characterized in that: The base includes a base body (1), on which a support leg assembly (3) is provided. The support leg assembly (3) includes a support leg (301) mounted on the base body (1). The support leg (301) and the base body (1) have a mating stroke in the rotational direction about the center line of the base body (1). The support leg assembly (3) also includes a buffer assembly (4) for realizing indirect contact between the support leg (301) and the base body (1). The buffer assembly (4) is used to provide resistance when the support leg (301) and the base body (1) move relative to each other at the mating stroke.

7. A card machine according to claim 6, characterized in that: The buffer assembly (4) includes two buffer springs (401) disposed on the base body (1) and pressed against both sides of the support leg (301).

8. A card machine according to claim 7, characterized in that: The base body (1) is provided with a support foot mounting position. The support foot mounting position includes a mating groove (101) arranged in the rotation direction around the center line of the base body (1). The support foot (301) includes a mating part (302) located in the mating groove (101). The length of the mating part (302) is less than the length of the mating groove (101), and the movement stroke of the mating part (302) in the mating groove (101) constitutes the mating stroke. A column (303) is provided on the mating part (302). The support foot mounting position is provided with spring mounting seats (304) located above the mating groove (101) and distributed on both sides of the column (303). There are two spring mounting seats (304), and spring mounting grooves (305) with openings facing the column (303) are formed inside. Two buffer springs (401) are respectively arranged in the two spring mounting grooves (305) and their ends extend out of the spring mounting grooves (305) and abut against the side of the column (303).

9. A card machine according to claim 5, characterized in that: The card machine body (2) includes a card compartment (201) and a transmission compartment (202) distributed vertically. The transmission compartment (202) is equipped with a rotary motor (203) for driving the card machine body (2) to rotate, a card dispensing motor (204) for dispensing cards in the card compartment (201), and a battery (205) for powering the card machine body (2). The battery (205) is located in the transmission compartment (202) and directly above the rotary motor (203). The rotary motor (203), the card dispensing motor (204), and the battery (205) are all arranged at the rotation center of the card machine body (2).

10. A card machine according to claim 9, characterized in that: The rotary motor (203) includes a motor body (209) and a gearbox (210). A drive wheel is connected to the output shaft of the gearbox (210). The rotary motor (203) is fixed on the bottom surface of the transmission chamber (202). A rotary gear disk (212) connected to the drive wheel via a synchronous belt is provided at the center of the bottom surface of the transmission chamber (202). The common center of gravity of the rotary motor (203), the card-dealing motor (204), and the battery (205) is located on the central axis of the rotary gear disk (212).

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