Center lifting mechanism of machine case of ultrathin automatic mahjong machine

Abstract

The invention discloses a center lifting mechanism of an ultra-thin automatic mahjong machine electric case, and belongs to the technical field of mahjong machine assembles.The center lifting mechanism of the ultra-thin automatic mahjong machine electric case comprises a mounting table, a mounting cavity is formed in the mounting table, a base is mounted on the inner wall of the mounting cavity, and a bottom cylinder is mounted at the top of the base; a middle cylinder is arranged in the bottom cylinder in a sleeved mode, and a top cylinder is arranged in the middle cylinder in a sleeved mode. By adopting the combination of the electromagnet, the sliding cylinder and the like, the lifting action is realized through the interaction of magnetic force, and the damper is combined for use, so that the lifting process is smoother, meanwhile, the lifting structure is simpler, the whole lifting structure can be smaller and more precise, and the lifting structure can be lighter and more convenient in use by combining the use of materials. The mahjong machine not only can be suitable for the ultrathin mahjong machine, but also is beneficial to promoting the overall design of the ultrathin mahjong machine, and the overall size and thickness of the mahjong machine can be further reduced, so that the ultrathin mahjong machine becomes lighter and more convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of mahjong machine components, and particularly relates to a central lifting mechanism for the motor box of an ultra-thin automatic mahjong machine. Background Art

[0002] For the need of shuffling mahjong, the central plate of an automatic mahjong machine needs to be lifted, and accordingly, a lifting mechanism is provided below the central plate. The central lifting mechanism of the existing mahjong machine drives a lever to lift through a motor. The lever is connected to a lifting rod, and the lifting rod is connected to a supporting bowl. Since the existing structure must use a motor for operation, not only the equipment cost is high, but also the structural design of the motor-driven components is quite complex. Moreover, there are many components inside the mahjong machine chassis, which causes difficulties in maintenance and reduces the reliability of use.

[0003] The overall volume and weight of the existing mahjong machine are also relatively large, resulting in extremely inconvenient handling or moving. Therefore, ultra-thin mahjong machines have gradually emerged. Such mahjong machines have a smaller overall volume and thickness, and the overall weight is much lighter compared to traditional mahjong machines, making the mahjong machine easier to handle or move. However, for the lifting mechanism used inside, if the lifting mechanism used in the existing mahjong machine is adopted, the overall thickness of the mahjong machine cannot be compressed to an appropriate thickness. Therefore, a lifting mechanism for an ultra-thin automatic mahjong machine is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a central lifting mechanism for the motor box of an ultra-thin automatic mahjong machine.

[0005] The technical solution adopted to solve the above technical problem is: a central lifting mechanism for the motor box of an ultra-thin automatic mahjong machine, including a mounting table. An installation cavity is formed inside the mounting table. A base is installed on the inner wall of the installation cavity. A bottom cylinder is installed on the top of the base. A middle cylinder is sleeved inside the bottom cylinder. A top cylinder is sleeved inside the middle cylinder. A connecting rod is installed on the top of the top cylinder. The top of the connecting rod extends above the mounting table and is installed with a tray. Lifting structures are installed on the inner walls of the bottom cylinder and the middle cylinder and at the bottom of the top cylinder. An electric control component is installed inside the installation cavity.

[0006] Further, the lifting structure includes an assembly cylinder and a damper. There are four assembly cylinders, which are respectively installed on the inner walls of the bottom cylinder and the middle cylinder and the bottom of the top cylinder. An assembly cavity is formed inside the assembly cylinder, and an integrated circuit is installed inside the assembly cavity. An electromagnet is installed in the cylinder body of the assembly cylinder. There are two dampers. One damper is installed on the inner wall of the bottom cylinder and its moving end is connected to the inner wall of the middle cylinder. The other damper is installed on the inner wall of the middle cylinder and its moving end is connected to the bottom of the top cylinder. The electric control component is electrically connected to the electromagnet and the integrated circuit. Through the scheme set above, the lifting action is realized by using the magnetic force and the characteristics of like poles repelling and opposite poles attracting. Therefore, compared with the mechanical structure with a motor and a connecting rod in the prior art, the overall thickness and volume can be effectively reduced, making the lifting mechanism more suitable for being assembled on an ultra-thin automatic mahjong machine.

[0007] Further, inclined surfaces are provided at the four top corners of the installation table, and inclined surfaces with different slopes from the inclined surfaces at the top corners of the installation table are provided on the four side edges of the top of the installation table. Through the provided inclined surfaces, when the mahjong on the table is pushed into the mahjong machine, the mahjong that falls can smoothly slide onto the transmission mechanism inside the mahjong machine through the inclined surfaces.

[0008] Further, the installation positions of the four assembly cylinders inside the bottom cylinder, the middle cylinder and the top cylinder correspond to each other. Through the setting of the positions of the assembly cylinders, the electromagnets can correctly interact with each other through the generated magnetic force to lift the middle cylinder and the top cylinder, thereby realizing the lifting of the connecting rod.

[0009] Further, the circuit board is provided with a microprocessor, resistors and an H-bridge circuit.

[0010] Further, sliding rods with circular protrusions at the bottom ends are integrally formed at the bottoms of the top cylinder and the middle cylinder. Limit blocks paired with the sliding rods provided on the top cylinder and the middle cylinder are installed on the inner walls of the middle cylinder and the bottom cylinder. The lifting distances of the top cylinder and the middle cylinder are limited by the provided limit blocks.

[0011] Further, the electric control component is provided with an integrated circuit, a power supply and a single-chip microcomputer.

[0012] Further, a through hole communicating with the installation cavity is opened at the bottom of the installation table, and an electric fan is installed inside the through hole. Since heat is generated when the electromagnet works, through the use of the electric fan, heat dissipation and temperature reduction are carried out inside the installation cavity, so that the temperature inside the installation cavity is maintained within a suitable range to ensure the normal operation of the components.

[0013] Furthermore, the bottom cylinder, middle cylinder, top cylinder, assembly cylinder and connecting rod are all made of thermosetting plastic materials, and the mounting table is made of aluminum material. The selection of the above materials ensures that the components are not affected by the heat generated by the operation of the electromagnet, preventing self-deformation and ensuring smooth lifting. The rapid heat conduction of the aluminum material reduces the impact of temperature rise on the use effect of the electromagnet, and the light weight of the aluminum material also conforms to the design concept of the ultra-thin mahjong machine.

[0014] Furthermore, the maximum distance that the connecting rod protrudes above the top of the mounting table is not less than 10 cm, and the minimum sliding length of the bottom cylinder, middle cylinder and top cylinder is the same as the height of the connecting rod protruding above the mounting table. Through the above settings, the lifting height of the connecting rod can meet the requirement that existing mahjong tiles on the market can be pushed into the mahjong machine. At the same time, due to the height limitation, while meeting the requirements, the height of the lifting mechanism can be reduced as much as possible to reduce the overall size.

[0015] The beneficial effects of the present invention are as follows: The present invention adopts a combination of an electromagnet and a sliding cylinder, and realizes the lifting action through the interaction of magnetic forces. Combined with the use of a damper, the lifting process is smoother, and at the same time, the lifting structure is more concise, making the overall lifting structure smaller and more compact. The use of materials also makes the lifting structure lighter. It is not only applicable to ultra-thin mahjong machines, but also helps to further reduce the overall volume and thickness of ultra-thin mahjong machines in the overall design, making ultra-thin mahjong machines lighter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a schematic top view of the structure of the present invention;

[0018] Figure 3 is a schematic diagram of the internal structure of the installation cavity of the present invention;

[0019] Figure 4 is a schematic diagram of the internal structure of the assembly cylinder of the present invention;

[0020] Figure 5 is Figure 3 an enlarged schematic diagram of the structure at A in

[0021] Reference numerals: 1, mounting table; 2, installation cavity; 3, base; 4, bottom cylinder; 5, middle cylinder; 6, top cylinder; 7, connecting rod; 8, tray; 9, assembly cylinder; 10, assembly cavity; 11, circuit board; 12, electromagnet; 13, damper; 14, electronic control component. DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] As Figures 1 to 5 shown, a central lifting mechanism of a motor box of an ultra-thin automatic mahjong machine according to this embodiment includes an installation table 1. Slopes are provided at the four top corners of the installation table 1. The installation table 1 is made of aluminum material. Since the aluminum material is light in weight and has a good thermal conductivity, the use of the aluminum material can, for the heat generated during the use of the electromagnet 12, maintain the temperature of the electromagnet 12 within a suitable range through the thermal conductivity of the aluminum material, so that the electromagnet 12 can exert a good effect, because the heat generated will also affect the stability of the magnetic force.

[0024] As Figure 1 shown, slopes with different slopes from those at the top corners of the installation table 1 are provided on the four side edges of the top of the installation table 1. Considering the common way of cleaning the mahjong tiles on the table in existing mahjong machines, which is to push the mahjong tiles into the mahjong machine so that the mahjong tiles fall onto the internal transmission mechanism. With the slopes provided on the installation table 1, when the mahjong tiles fall onto the installation table 1, under the action of the slopes, the mahjong tiles can smoothly slide off the installation table 1. An installation cavity 2 is opened inside the installation table 1. A through hole communicating with the installation cavity 2 is opened at the bottom of the installation table 1, and an electric fan is installed inside the through hole. The electric fan is used for the overall heat dissipation inside the installation cavity 2. A base 3 is installed on the inner wall of the installation cavity 2. A bottom cylinder 4 is installed on the top of the base 3. A middle cylinder 5 is sleeved inside the bottom cylinder 4. A top cylinder 6 is sleeved inside the middle cylinder 5. Slide rods with circular protrusions at the bottom ends are integrally formed at the bottoms of the top cylinder 6 and the middle cylinder 5. Limit blocks paired with the slide rods provided on the top cylinder 6 and the middle cylinder 5 are installed on the inner walls of the middle cylinder 5 and the bottom cylinder 4. By providing the slide rods and the limit blocks, when the slide rods slide up and contact the limit blocks during the sliding process of the top cylinder 6 and the middle cylinder 5, the top cylinder 6 and the middle cylinder 5 will stop moving. Thus, in combination with the magnetic force effect of the electromagnet 12, the positions of the limit blocks are designed, so that the rising heights of the middle cylinder 5 and the top cylinder 6 are determined.

[0025] As Figure 4 and Figure 5As shown, a connecting rod 7 is installed at the top of the top cylinder 6. The bottom cylinder 4, the middle cylinder 5, the top cylinder 6, the assembly cylinder 9 and the connecting rod 7 are all made of thermosetting plastic materials. When the above components adopt thermosetting plastic materials, the overall shape will not be affected by the heat generated by the electromagnet 12. The top of the connecting rod 7 extends above the mounting table 1 and is installed with a tray 8. The tray 8 is used to install the operation panel for external control on the existing mahjong table. The maximum distance that the connecting rod 7 protrudes above the top of the mounting table 1 is not less than 10 cm. The setting of the maximum distance can avoid the situation of too high overall height of the lifting structure while ensuring that the mahjong tiles can be pushed in. The minimum sliding length of the bottom cylinder 4, the middle cylinder 5 and the top cylinder 6 is the same as the height of the connecting rod 7 protruding above the mounting table 1. This setting is to make the tray 8 cover the opening on the table after descending.

[0026] Lifting structures are installed on the inner walls of the bottom cylinder 4 and the middle cylinder 5 and the bottom of the top cylinder 6. An electric control component 14 is installed inside the installation cavity 2. The electric control component 14 is provided with an integrated circuit, a power supply and a single-chip microcomputer. The single-chip microcomputer set therein serves as the main control component to form a microcomputer system to achieve overall control, and combines the use of the integrated circuit and the power supply to achieve power output for the electromagnet 12.

[0027] The lifting structure includes an assembly cylinder 9 and a damper 13. There are four assembly cylinders 9, which are respectively installed on the inner walls of the bottom cylinder 4 and the middle cylinder 5 and the bottom of the top cylinder 6. The positions of the four assembly cylinders 9 inside the bottom cylinder 4, the middle cylinder 5 and the top cylinder 6 correspond to each other. One assembly cylinder 9 is provided in each of the top cylinder 6 and the bottom cylinder 4, and two assembly cylinders 9 are provided in the middle cylinder 5. And between each assembly cylinder 9, not only the positions correspond to each other, but the magnetic heads of the electromagnets in the middle cylinder 5 are opposite to the magnetic heads on the assembly cylinders in the top cylinder 6 and the bottom cylinder 4 respectively. This setting is to make the electromagnets 12 installed inside be correctly aligned at both ends, so that the lifting action can be realized through the magnetic force between them. An assembly cavity 10 is opened inside the assembly cylinder 9, and a circuit board 11 is installed inside the assembly cavity 10. In order to avoid magnetic interference to the circuit board 11, a magnetic shielding material is installed on the inner wall of the assembly cavity 10 to protect the circuit board 11.

[0028] The circuit board 11 is provided with a microprocessor, resistors, and an H-bridge circuit. Combining with the components set in the electronic control component 14, signals are sent by the single-chip microcomputer. First, power is supplied to the electromagnet 12 installed on the bottom cylinder 4, then after a 0.1 s interval, power is supplied to the electromagnet 12 installed on the middle cylinder 5, and after another 0.2 s interval, power is supplied to the electromagnet 12 of the top cylinder 6. Through intermittent power supply, the electromagnet 12 can generate magnetic force at intervals. Since the resistance values of the resistors set on the circuit board 11 installed in the assembly cylinders 9 at different positions are different, in order to make the current values on the electromagnet 12 different, thus making the magnetic force of the electromagnet 12 different, the current intensity gradually decreases from bottom to top, so as to generate sufficient magnetic force to complete the rising action. When performing the descending action, the change of the current direction is realized through the carried H-bridge circuit, so that the magnetic poles of each electromagnet 12 change. Therefore, when the power supply outputs current and is connected by wires, the top cylinder 6 and the bottom cylinder 4 are connected to the same circuit, while the middle cylinder 5 is connected to a circuit. So there are two circuits, and the lifting action is realized through the change between the magnetic poles of the electromagnet 12 in the middle cylinder 5.

[0029] As Figure 5 shown, an electromagnet 12 is installed in the cylinder body of the assembly cylinder 9. There are two dampers 13 in total. One damper 13 is installed on the inner wall of the bottom cylinder 4 and its moving end is connected to the inner wall of the middle cylinder 5. The other damper 13 is installed on the inner wall of the middle cylinder 5 and its moving end is connected to the bottom of the top cylinder 6. The damper 13 is composed of a cylinder with a slide bar slidably installed inside and filled with hydraulic oil, and provides resistance through the friction generated between the slide bar and the hydraulic oil when the slide bar slides.

[0030] Therefore, with the use of the damper 13, at the moment when the current is connected and cut off, the magnetic force will instantaneously appear and disappear. Therefore, the resistance generated by the sliding of the slide bar in the damper 13 is used to make the lifting process transition more smoothly. The other end is connected to the top end of the inner wall of the bottom cylinder 4, and the electronic control component 14 is electrically connected to the electromagnet 12 and the circuit board 11.

[0031] The working principle of this embodiment is as follows. When the lifting mechanism is working, after connecting to the power supply, when it is necessary to lift the connecting rod 7, the power supply in the electronic control component 14 is used for power supply, so that the electromagnet 12 generates magnetic force after being energized, and the current direction of each electromagnet 12 is controlled through the microprocessor and H-bridge circuit set in the integrated circuit, so that the electromagnets 12 repel or attract each other through magnetic force, thereby realizing the lifting of the connecting rod 7 to open the air drop, so that the mahjong tiles on the table can be pushed into the mahjong machine. When the connecting rod 7 is lifted or lowered, the damper 13 provides resistance during the lifting or lowering process. Because when the current is connected, the electromagnet 12 is instantaneously affected by the force due to the change of the magnetic poles at both ends. Similarly, when the current is cut off, the magnetic force will also disappear instantaneously. Through the action of the damper 13, buffering is carried out to make the lifting and lowering of the connecting rod 7 smoother. The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An ultra-thin automatic mahjong machine motor box central lifting mechanism, comprising a mounting table (1), characterized in that: An installation cavity (2) is formed inside the installation table (1). A base (3) is installed on the inner wall of the installation cavity (2). A bottom cylinder (4) is installed on the top of the base (3). A middle cylinder (5) is sleeved inside the bottom cylinder (4). A top cylinder (6) is sleeved inside the middle cylinder (5). A connecting rod (7) is installed on the top of the top cylinder (6). The top of the connecting rod (7) extends above the installation table (1) and a tray (8) is installed. Lifting structures are installed on the inner walls of the bottom cylinder (4) and the middle cylinder (5) and at the bottom of the top cylinder (6). An electric control component (14) is installed inside the installation cavity (2).

2. The central lifting mechanism of the ultra-thin automatic mahjong machine motor box according to claim 1, characterized in that: The lifting structure includes an assembly cylinder (9) and a damper (13). There are four assembly cylinders (9) which are respectively installed on the inner walls of the bottom cylinder (4) and the middle cylinder (5) and at the bottom of the top cylinder (6). An assembly cavity (10) is formed inside the assembly cylinder (9). A circuit board (11) is installed inside the assembly cavity (10). An electromagnet (12) is installed in the cylinder body of the assembly cylinder (9). There are two dampers (13). One damper (13) is installed on the inner wall of the bottom cylinder (4) and its moving end is connected to the inner wall of the middle cylinder (5). The other damper (13) is installed on the inner wall of the middle cylinder (5) and its moving end is connected to the bottom of the top cylinder (6). The electric control component (14) is electrically connected to the electromagnet (12) and the circuit board (11).

3. The central lifting mechanism of the motor box of an ultra-thin automatic mahjong machine according to claim 1, characterized in that: Bevels are provided at the four corners of the installation table (1). Bevels with different slopes from the slopes at the corners of the installation table (1) are provided on the four side edges at the top of the installation table (1).

4. The central lifting mechanism of the ultra-thin automatic mahjong machine motor box according to claim 2, wherein: The four assembly cylinders (9) are arranged corresponding to each other inside the bottom cylinder (4), the middle cylinder (5) and the top cylinder (6).

5. The central lifting mechanism of the ultra-thin automatic mahjong machine motor box according to claim 2, characterized in that: The circuit board (11) is provided with a microprocessor, resistors and an H-bridge circuit.

6. The central lifting mechanism of the ultra-thin automatic mahjong machine motor box according to claim 1, characterized in that: Round protrusions are integrally formed at the bottoms of the top cylinder (6) and the middle cylinder (5), and sliding rods are provided. Limit blocks are installed on the inner walls of the middle cylinder (5) and the bottom cylinder (4) which are paired with the sliding rods provided on the top cylinder (6) and the middle cylinder (5).

7. The central lifting mechanism of the motor box of the ultra-thin automatic mahjong machine according to claim 1, characterized in that: The electric control component (14) is provided with an integrated circuit, a power supply and a single-chip microcomputer.

8. The central lifting mechanism of the motor box of an ultra-thin automatic mahjong machine according to claim 1, characterized in that: A through hole communicating with the installation cavity (2) is formed at the bottom of the installation table (1), and an electric fan is installed inside the through hole.

9. The central lifting mechanism of the motor box of an ultra-thin automatic mahjong machine according to claim 2, characterized in that: The bottom cylinder (4), the middle cylinder (5), the top cylinder (6), the assembly cylinder (9) and the connecting rod (7) are all made of thermosetting plastic materials, and the installation table (1) is made of aluminum material.

10. The central lifting mechanism of the motor box of an ultra-thin automatic mahjong machine according to claim 2, characterized in that: The maximum distance that the connecting rod (7) protrudes above the top of the installation table (1) is not less than 10 centimeters. The minimum sliding length of the bottom cylinder (4), the middle cylinder (5) and the top cylinder (6) is the same as the height that the connecting rod (7) protrudes above the installation table (1).

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