Lifting control device of mahjong machine control panel
The lifting control device, consisting of a lifting column, a drive motor, and a crankshaft, solves the problems of complex structure and poor user comfort of the central control panel of the mahjong machine, achieving a smooth and low-noise lifting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SHANGCHONG IND CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-06-02
AI Technical Summary
The existing mahjong machine's central control panel lifting mechanism has a complex structure, high failure rate, large space occupation, short lifting distance, and is prone to rotational misalignment, resulting in poor user comfort.
The lifting control device consists of a lifting column, a drive motor, a crankshaft, and rollers. The control panel is raised and lowered by the swing of the crankshaft. The rotation between the rollers and the lifting seat reduces friction. Combined with a cantilever mounting bracket and positioning structure, stability and space utilization are ensured.
It achieves smooth raising and lowering of the control panel, reduces noise and friction, simplifies the structure, lowers the failure rate, and improves user comfort.
Smart Images

Figure CN224307785U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mahjong machines, and in particular relates to a lifting control device for the control panel of a mahjong machine. Background Technology
[0002] Mahjong machines, as a high-end entertainment product, have become a part of people's lives due to their comfort, health benefits, and fairness. Hotels and restaurants have incorporated them as essential amenities. The central control panel of a mahjong machine, also known as the central lifting gate, rises to push the discarded mahjong tiles into the machine for shuffling, and descends to be level with the table for gameplay. The stability of the central control panel's rise and fall, as well as its levelness with the table after descent, determines the quality and popularity of the mahjong machine. Automatic mahjong machines require a rising and falling central control panel for shuffling, and a lifting mechanism is connected below the control panel. Most existing automatic mahjong machines use a lever-type lifting mechanism, which is complex, has a high failure rate, occupies a large space, has a short lifting distance, and the circular central rod is prone to rotational misalignment, resulting in noticeable lateral swaying and significantly reducing user comfort. 。
[0003] For example, a Chinese invention patent discloses a fully automatic mahjong machine control panel lifting mechanism [application number CN201821638166.6], which includes a frame 1. The frame 1 is characterized by a lifting motor 2, which is connected to a lifting wheel 3. The lifting wheel is equipped with a lever 4, which is connected to a lifting tube 6 through a lifting mechanism. A shaft head seat 11 is fixed on the upper part of the frame 1, and the lifting tube 6 passes through the shaft head seat. The frame has a longitudinal guide rail 7 for the lifting tube to move up and down. However, it has a lever structure with a circular central rod, which is complex, has a high failure rate, occupies a large space, has a small lifting distance, and the circular central rod is prone to rotation and misalignment. The lifting rod wobbles significantly from side to side, greatly reducing the comfort of use. Utility Model Content
[0004] The purpose of this utility model is to address the above-mentioned problems by providing a lifting control device for the control panel of a mahjong machine.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A lifting control device for a mahjong machine control panel includes a lifting column fixed to the lower part of the control panel and a mounting base fixed to the base plate of the large panel. A lifting seat is fixed on the lifting column, and a drive motor is fixed on the mounting base. A crankshaft is fixed on the power output shaft of the drive motor, and a roller is provided at the end of the crankshaft. The lifting seat presses on the roller. When the drive motor drives the crankshaft to rotate, the roller moves along an arc trajectory in the vertical direction, thereby driving the lifting seat to rise and fall in the vertical direction.
[0007] In the aforementioned lifting control device for the mahjong machine control panel, the mounting base has a central channel, the lifting column passes through the central channel, the inner end of the lifting seat is fixed to the lifting column and located in the central channel, the outer end of the lifting seat is located outside the central channel and has a laterally extending roller pressing surface, and the roller pressing surface presses against the roller.
[0008] In the aforementioned lifting control device for the mahjong machine control panel, a cantilever mounting bracket is provided on the side of the mounting base, the drive motor is fixed on the cantilever mounting bracket, and a space is provided between the cantilever mounting bracket and the lifting base for longitudinal movement of the outer end of the lifting base.
[0009] In the aforementioned lifting control device for the mahjong machine control panel, the mounting base has a radially protruding positioning mounting ring in the middle, and the positioning mounting ring is integrated with the middle of the cantilever mounting frame.
[0010] In the aforementioned lifting control device of the mahjong machine control panel, the inner end of the lifting seat is cylindrical and fixedly sleeved on the outside of the lifting column.
[0011] In the lifting control device of the mahjong machine control panel mentioned above, the outer end of the lifting seat is elongated, and the roller pressing surface includes two inclined surfaces arranged in an inverted V-shape, and the roller rolls along the inclined surfaces.
[0012] In the lifting control device of the mahjong machine control panel mentioned above, a plane is provided between the two inclined planes.
[0013] In the aforementioned lifting control device for the mahjong machine control panel, the cantilever mounting bracket is provided with a motor mounting slot, the drive motor is located on one side of the motor mounting slot, the power output shaft of the drive motor passes through the motor mounting slot and the crankshaft is located on the other side of the motor mounting slot.
[0014] In the aforementioned lifting control device for the mahjong machine control panel, vertical grooves are provided on both sides of the central channel.
[0015] In the aforementioned lifting control device for the mahjong machine control panel, the mounting base is provided with support frames located on both sides of the central channel, and the support frames are hollow.
[0016] Compared with existing technologies, the advantages of this utility model are:
[0017] 1. The control panel is raised and lowered by the swing amplitude of the crankshaft, which takes up little space and does not have the defects of easy rotation and misalignment as the lever structure of the circular center rod. In addition, the roller has a self-rotating function. When the lifting seat is pushed, the roller will slide between the roller and the lifting seat. Through the self-rotation of the roller, the sliding friction between the roller and the lifting seat is reduced, making the lifting seat rise and fall more smoothly and reducing the noise generated during operation.
[0018] 2. The cantilever mounting bracket provides sufficient lifting space for the roller pressing surface and swing space for the roller and crankshaft. The structure is simple. In addition, placing the roller pressing surface, roller and crankshaft in the cantilever mounting bracket also protects the parts.
[0019] 3. When the inclined plane comes into contact with the roller, it generates a lateral force that pushes the roller, allowing the roller to stick tightly to the inclined plane.
[0020] 4. The mounting slot is used to install the drive motor. On the one hand, it serves to position the drive motor during installation, and on the other hand, it is used to hold the drive motor in place to prevent it from shifting, thereby preventing the crankshaft from deviating. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure;
[0022] Figure 2 yes Figure 1 A diagram showing the installation bracket after it has been concealed.
[0023] Figure 3 It is a picture Figure 1 A schematic diagram showing another direction hidden behind the bottom plate of the large trading platform;
[0024] Figure 4 yes Figure 3 A diagram from another direction;
[0025] Figure 5 yes Figure 4 A schematic diagram showing the drive motor hidden.
[0026] Figure 6 This is a schematic diagram of the section where the lifting platform extends into the central channel.
[0027] In the diagram: control panel, lifting column 11, large plate base 12, mounting base 13, lifting seat 14, drive motor 15, crankshaft 16, roller 17, central channel 18, roller top pressure surface 19, cantilever mounting bracket 20, space 21, positioning mounting ring 22, motor mounting slot 23, vertical slot 25, support frame 26. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0029] This utility model provides a lifting control device for the control panel of a mahjong machine, combined with... Figure 1-6 As shown, the device includes a lifting column 11 fixed to the lower part of the control panel and a mounting base 13 fixed to the base plate 12 of the large panel. The lifting column 11 is characterized by having a lifting seat 14 fixed on it, a drive motor 15 fixed on the mounting base 13, a crankshaft 16 fixed on the power output shaft of the drive motor 15, and a roller 17 at the end of the crankshaft 16. The lifting seat 14 is pressed onto the roller 17. When the drive motor 15 drives the crankshaft 16 to rotate, the roller 17 moves along an arc trajectory in the vertical direction, thereby driving the lifting seat 14 to rise and fall in the vertical direction.
[0030] In this embodiment, when the control panel of the mahjong machine is raised and lowered, the drive motor 15 operates to rotate the crankshaft 16. Since the roller 17 is located at the end of the crankshaft 16, the radius of the arc trajectory of the roller 17 can ensure the rising height of the control panel. Through the contact between the roller 17 and the lifting seat 14, the roller 17 swings along the arc trajectory to push the lifting seat 14 upward. The contact surface between the lifting seat 14 and the roller 17 is long enough to ensure that the roller 17 will not disengage from the lifting seat 14 during the swinging process. In addition, the roller 17 has a self-rotating function. When pushing the lifting seat 14, the roller 17 will slide with the lifting seat 14. Through the self-rotation of the roller 17, the sliding friction between the roller 17 and the lifting seat 14 is reduced, making the raising and lowering of the lifting seat 14 smoother and reducing the noise generated during operation.
[0031] The mounting base 13 has a central channel 18, the lifting column 11 passes through the central channel 18, the inner end of the lifting seat 14 is fixed to the lifting column 11 and located in the central channel 18, the outer end of the lifting seat 14 is located outside the central channel 18 and has a laterally extending roller pressing surface 19, the roller pressing surface 19 is pressed on the roller 17.
[0032] In this embodiment, the central channel 18 is used to provide the lifting space of the lifting seat 14 and to restrict the movement direction of the lifting seat 14 so that the lifting seat 14 can only move up and down in the vertical direction. Since the swing range of the roller 17 is large, the roller pressing surface 19 needs to have a certain length. Setting the roller pressing surface 19 on the outside of the central channel 18 can ensure that the central channel 18 is only used to restrict the movement direction of the lifting seat 14, and prevent the central channel from being too large and losing its function of restricting and guiding the movement direction of the lifting seat 14.
[0033] The mounting base 13 is provided with a cantilever mounting bracket 20 on its side. The drive motor 15 is fixed on the cantilever mounting bracket 20. A space 21 is provided between the cantilever mounting bracket 20 and the lifting seat 14, which allows the outer end of the lifting seat 14 to move longitudinally.
[0034] In this embodiment, the cantilever mounting bracket 20 provides sufficient lifting space for the roller pressing surface 19 and swing space for the roller 17 and crankshaft 16, resulting in a simple structure. Furthermore, placing the roller pressing surface 19, roller 17, and crankshaft 16 within the cantilever mounting bracket 20 also serves to protect the components.
[0035] The mounting base 13 has a radially protruding positioning mounting ring 22 in the middle, and the positioning mounting ring 22 is integrated with the middle part of the cantilever mounting bracket 20.
[0036] In this embodiment, during installation, once the crankshaft 16 is placed in the space 21, the crankshaft 16 can be rotated for testing. Whether the crankshaft 16 can touch the positioning mounting ring 22 is used to determine whether the installation is in place.
[0037] The inner end of the lifting seat 14 is cylindrical and is fixedly sleeved on the outside of the lifting column 11.
[0038] In this embodiment, the cylindrical shape eliminates the end angles of the contact surface between the lifting seat 14 and the lifting column 11, making the movement of the lifting column 11 more stable.
[0039] The outer end of the lifting seat 14 is elongated, and the roller pressing surface 19 includes two inclined surfaces arranged in an inverted V-shape. The roller 17 rolls along the inclined surfaces.
[0040] In this embodiment, the inverted V-shaped inclined surface generates a lateral force that pushes the roller 17 when it comes into contact with the roller 17, enabling the roller 17 to fit tightly against the inclined surface.
[0041] A plane is provided between the two inclined planes.
[0042] In this embodiment, when the roller 17 moves to the plane, the control disk rises to the top. During the time that the roller 17 slides on the plane, the control disk slows down its descent at the top, forming a period of hovering.
[0043] The cantilever mounting bracket 20 is provided with a motor mounting slot 23. The drive motor 15 is located on one side of the motor mounting slot 23, and the power output shaft of the drive motor 15 passes through the motor mounting slot 23, while the crankshaft 16 is located on the other side of the motor mounting slot 23.
[0044] In this embodiment, the mounting slot 23 is used to install the drive motor 15. On the one hand, it serves as a positioning tool during installation, and on the other hand, it holds the drive motor 15 in place during installation to prevent it from shifting, thereby preventing the crankshaft 16 from deviating.
[0045] Preferably, vertical grooves 25 are provided on both sides of the central channel 18.
[0046] In this embodiment, the lifting seat 14 may be provided with connecting blocks on both sides that are slidably connected to the corresponding vertical grooves 25, thereby further limiting the moving direction of the lifting seat 14 by the vertical grooves 25.
[0047] The mounting base 13 is provided with support frames 26 located on both sides of the central channel 18, and the support frames 26 are hollow.
[0048] In this embodiment, a support block that matches the shape of the internal structure of the support frame 26 can be provided on the table base frame. During installation, the support block extends into the support frame 26 to provide positioning and facilitate installation. In addition, under long-term use, it can prevent the deformation of the central channel 18 caused by the deformation of the support frame 26 from affecting the movement of the lifting seat 14.
[0049] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0050] Although this article uses terms such as control panel, lifting column 11, large plate base 12, mounting base 13, lifting seat 14, drive motor 15, crankshaft 16, roller 17, central channel 18, roller top pressure surface 19, cantilever mounting bracket 20, space 21, positioning mounting ring 22, motor mounting slot 23, vertical slot 25, support frame 26, etc., these terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.
Claims
1. A lifting control device of a mahjong machine control panel, comprising a lifting column (11) fixed at the lower part of the control panel and a mounting seat (13) fixed to the bottom plate (12) of the large panel, characterized in that, A lifting seat (14) is fixed on the lifting column (11), a drive motor (15) is fixed on the mounting base (13), a crankshaft (16) is fixed on the power output shaft of the drive motor (15), a roller (17) is provided at the end of the crankshaft (16), the lifting seat (14) is pressed on the roller (17), when the drive motor (15) drives the crankshaft (16) to rotate, the roller (17) moves along an arc trajectory in the vertical direction, thereby driving the lifting seat (14) to rise and fall in the vertical direction.
2. The lifting control device of the mahjong machine control panel according to claim 1, characterized in that, The mounting base (13) has a central channel (18), the lifting column (11) passes through the central channel (18), the inner end of the lifting seat (14) is fixed to the lifting column (11) and located in the central channel (18), the outer end of the lifting seat (14) is located outside the central channel (18) and has a laterally extending roller pressing surface (19), the roller pressing surface (19) is pressed on the roller (17).
3. The lifting control device of the mahjong machine control panel according to claim 2, characterized in that, The mounting base (13) is provided with a cantilever mounting bracket (20) on its side. The drive motor (15) is fixed on the cantilever mounting bracket (20). A space (21) is provided between the cantilever mounting bracket (20) and the lifting seat (14) for longitudinal movement of the outer end of the lifting seat (14).
4. The lifting control device of the mahjong machine control panel according to claim 3, characterized in that, The mounting base (13) has a radially protruding positioning mounting ring (22) in the middle, and the positioning mounting ring (22) is integrated with the middle of the cantilever mounting bracket (20).
5. The lifting control device of mahjong machine control panel according to claim 2 or 3 or 4, characterized in that, The inner end of the lifting seat (14) is cylindrical and fixedly sleeved on the outside of the lifting column (11).
6. The lifting control device of mahjong machine control panel according to claim 2 or 3 or 4, characterized in that, The outer end of the lifting seat (14) is long and narrow, and the roller pressing surface (19) includes two inclined surfaces arranged in an inverted V-shape. The roller (17) rolls along the inclined surfaces.
7. The lifting control device of the mahjong machine control panel according to claim 6, characterized in that, A plane is provided between the two inclined planes.
8. The lifting control device of the mahjong machine control panel according to claim 3 or 4, characterized in that, The cantilever mounting bracket (20) is provided with a motor mounting slot (23). The drive motor (15) is located on one side of the motor mounting slot (23). The power output shaft of the drive motor (15) passes through the motor mounting slot (23) and the crankshaft (16) is located on the other side of the motor mounting slot (23).
9. The lifting control device of mahjong machine control panel according to claim 2 or 3 or 4, characterized in that, Vertical grooves (25) are provided on both sides of the central channel (18).
10. The lifting control device of mahjong machine control panel according to claim 2 or 3 or 4, characterized in that, The mounting base (13) is provided with support frames (26) located on both sides of the central channel (18), and the support frames (26) are hollow.