Adjustable mahjong table

Abstract

This utility model discloses an adjustable table frame and a mahjong table thereof, relating to the field of furniture and equipment technology. It includes a mahjong table, a table frame, an oil reservoir, a hydraulic cylinder, and a stop valve. The table frame is slidably and fixedly connected to the outer wall surface of the mahjong table. Table legs are welded and fixedly connected to the bottom center of the table frame. A connecting rod is welded and fixedly connected to the bottom center of the mahjong table. An oil reservoir is welded and fixedly connected to the bottom center of the connecting rod. A four-way hydraulic cylinder support is welded and fixedly connected to the bottom center of the oil reservoir. Hydraulic cylinders are engaged and fixedly connected to the outer wall surface of the four-way hydraulic cylinder support. A piston hydraulic rod is slidably connected to the inner wall surface of the hydraulic cylinder. The table frame, table legs, hydraulic cylinder, and piston hydraulic rod are all four in number. An oil reservoir injection pipe is welded and fixedly connected to the top right of the oil reservoir. An oil reservoir injection pipe threaded and fixedly connected to the upper side of its outer surface is threaded with an oil injection pipe threaded sealing cap.

Description

Technical Field

[0001] This utility model relates to the field of furniture and equipment technology, specifically an adjustable mahjong table. Background Technology

[0002] A mahjong table is a special table designed specifically for mahjong games. Its core function is to provide a stable and compatible operating platform for mahjong games. At the same time, with the development of technology, it continuously integrates auxiliary functions to enhance the gaming experience.

[0003] Mahjong tables are a common form of entertainment in daily life. However, most existing mahjong tables have fixed table frame spacing, which cannot be adjusted to meet the user's needs, thus affecting user comfort to some extent. Therefore, those skilled in the art have provided an adjustable mahjong table to solve the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable mahjong table to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An adjustable mahjong table includes a mahjong table, a table frame, an oil reservoir, a hydraulic cylinder, and a flow stop valve. The table frame is slidably and fixedly connected to the outer wall surface of the mahjong table on all four sides. Table legs are welded and fixedly connected to the bottom center of the table frame. A connecting rod is welded and fixedly connected to the bottom center of the mahjong table. An oil reservoir is welded and fixedly connected to the bottom center of the connecting rod. A four-way support for the hydraulic cylinder is welded and fixedly connected to the bottom center of the oil reservoir. The hydraulic cylinder is engaged and fixedly connected to the hydraulic cylinder on all four sides of the outer wall surface of the four-way support. A piston hydraulic rod is slidably connected to the inner wall surface of the hydraulic cylinder. The number of the table frame, table legs, hydraulic cylinder, and piston hydraulic rod are all four.

[0006] As a further embodiment of this utility model: the oil filling pipe of the oil storage bottle is welded and fixedly connected to the right end of the top of the oil storage bottle.

[0007] As a further improvement of this utility model, the oil filling pipe of the oil storage bottle is fixedly connected to the threaded sealing cap of the oil filling pipe by a thread around the upper side of the outer surface.

[0008] As a further improvement of this utility model: the oil storage bottle has four oil extraction pipes that are fixedly connected to all four sides of its outer surface.

[0009] As a further improvement of this utility model, the oil pump is electrically and fixedly connected to the oil inlet through the outer wall surface of the oil pipe, and the number of oil pumps is four.

[0010] As a further improvement of this utility model: the outer wall surface of the oil extraction pipe is connected to a check valve through the outer side of the oil pump, and the number of check valves is four.

[0011] As a further improvement of this utility model: the top center of the stop valve is electrically connected to the stop valve drive component by a bolt, and the number of stop valve drive components is four.

[0012] As a further improvement of this utility model, a VFD frequency converter is electrically fixedly connected to the inner surface of the central cutout at the front end of the table frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. Before use, the user needs to unscrew the threaded sealing cap on the oil filling pipe of the oil storage bottle and introduce hydraulic oil into the oil storage bottle through the oil filling pipe. Then, tighten the threaded sealing cap to ensure the oil storage bottle is sealed. During use, the user operates the control switch of the VFD frequency converter. Before the oil pump starts, the VFD frequency converter briefly opens the check valve. The check valve's drive component is an electromagnetic coil assembly, directly connected to the valve core via a mechanical linkage. The VFD frequency converter sends an electrical signal to the electromagnetic coil, generating a magnetic field that attracts the valve core, overcoming spring force or hydraulic resistance, thus opening the valve. Hydraulic oil flows through the oil extraction pipe to the hydraulic cylinder, ensuring unobstructed oil passage in the oil extraction pipe. The four sets of oil pump motors are then started. The motors drive the pump impellers to rotate, drawing hydraulic oil from the oil storage bottle through the oil extraction pipe. After pressurization, the oil is transported through pipelines to the rodless chamber of the hydraulic cylinder. The high-pressure oil pushes the piston of the hydraulic piston rod forward, simultaneously causing the table frame and legs to expand outwards. Through the VFD... The high-resolution characteristics of variable frequency control and hydraulic transmission allow for millimeter-level fine adjustment of the table frame, adapting to various wide-space scenarios and significantly improving user comfort and flexibility. The electro-hydraulic drive replaces traditional manual knobs or levers, enabling one-button expansion without human intervention, making it especially suitable for the elderly or those with mobility impairments. The VFD's speed adjustment function further optimizes the experience, allowing for adjustable speeds. 2. The VFD frequency converter switches the oil circuit direction via a control signal. By reversing the oil pump, the hydraulic oil in the rod chamber of the hydraulic cylinder flows back to the oil reservoir under the action of gravity and load. After the oil pump stops, the check valve immediately closes, the solenoid coil is de-energized, the magnetic field disappears, and the valve core of the check valve seals the valve port under the back pressure of the return spring, blocking the backflow of oil in the oil pipe. This ensures stability when the table frame and legs expand outward. In the hydraulic system of the mahjong table, the combined use of the check valve and the drive component ensures that the width of the table remains stable, preventing changes in width due to accidental collisions from affecting the player's gaming experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an adjustable mahjong table.

[0015] Figure 2 This is a schematic diagram of the internal expansion component in an adjustable mahjong table.

[0016] Figure 3 This is a schematic diagram of the overall structure of a hydraulic expansion component in an adjustable mahjong table.

[0017] Figure 4 This is a schematic diagram of the overall structure of a hydraulic drive component in an adjustable mahjong table.

[0018] Figure 5 This is a top-down plan view of an adjustable mahjong table.

[0019] Figure 6 This is a plan view of the entire adjustable mahjong table from the front.

[0020] In the diagram: 1-Mahjong table, 2-Table frame, 3-Table leg, 4-Connecting rod, 5-Oil storage bottle, 6-Hydraulic cylinder four-way support, 7-Hydraulic cylinder, 8-Piston hydraulic rod, 9-Oil storage bottle filling pipe, 10-Oil filling pipe threaded sealing cap, 11-Oil extraction pipe, 12-Oil extraction pump, 13-Check valve, 14-Check valve drive component, 15-VFD frequency converter. Detailed Implementation

[0021] Please see Figures 1-6In this embodiment of the utility model, an adjustable mahjong table includes a mahjong table 1, a table frame 2, table legs 3, a connecting rod 4, an oil storage bottle 5, a four-way hydraulic cylinder support 6, a hydraulic cylinder 7, a piston hydraulic rod 8, an oil storage bottle injection pipe 9, an oil injection pipe threaded sealing cap 10, an oil extraction pipe 11, an oil extraction pump 12, a stop valve 13, a stop valve drive component 14, and a VFD frequency converter 15. The table frame 2 is slidably and fixedly connected to the outer wall surface of the mahjong table 1 on all four sides. The table legs 3 are welded and fixedly connected to the bottom center of the table frame 2. The connecting rod 4 is welded and fixedly connected to the bottom center of the mahjong table 1. The oil storage bottle 5 is welded and fixedly connected to the bottom center of the connecting rod 4. The four-way hydraulic cylinder support 6 is welded and fixedly connected to the bottom center of the oil storage bottle 5. The hydraulic cylinder 7 is engaged and fixedly connected to the outer wall surface of the four-way hydraulic cylinder support 6 on all four sides. The piston hydraulic rod 8 is slidably connected to the inner wall surface of the hydraulic cylinder 7. The table frame 2, table legs 3, hydraulic cylinder 7, and... There are four piston hydraulic rods 8. The oil storage bottle 5 is welded and fixedly connected to the oil filling pipe 9 through the top right side. The oil filling pipe 9 is fixedly connected to the oil filling pipe thread seal cap 10 around the upper side of its outer surface. The oil storage bottle 5 is fixedly connected to the oil extraction pipe 11 through all four sides of its outer surface. There are four oil extraction pipes 11. The oil inlet of the oil extraction pipe 11 is electrically fixedly connected to the oil pump 12 through the outer wall surface. There are four oil pumps 12. The oil extraction pipe 11 is fixedly connected to the check valve 13 through the outer wall surface of the oil pump 12. There are four check valves 13. The check valve 13 is electrically fixedly connected to the check valve drive component 14 through the middle of its top end with four bolts. The table frame 2 is electrically fixedly connected to the inner surface of the middle of its front end with a VFD frequency converter controller 15.

[0022] The working principle of this utility model is as follows: When using this utility model, firstly, the user needs to unscrew the oil filling pipe thread sealing cap 10 on the oil filling pipe 9 of the oil storage bottle, and introduce hydraulic oil into the oil storage bottle 5 through the oil filling pipe 9, and tighten the oil filling pipe thread sealing cap 10 to ensure the sealing of the oil storage bottle 5; when using it, the user operates the control switch of the VFD frequency converter 15. Before the oil pump 12 starts, the VFD frequency converter 15 briefly opens the check valve 13. The check valve drive component 14 is an electromagnetic coil assembly, which is directly connected to the valve core of the check valve 13 through a mechanical linkage. The VFD frequency converter 15 sends an electrical signal to the electromagnetic coil, generating a magnetic field that attracts the valve core to overcome the spring force or hydraulic resistance, causing the valve to open. The hydraulic oil flows to the hydraulic cylinder 5 through the oil extraction pipe 11, ensuring the oil extraction. With the oil passage of pipe 11 unobstructed, the motors of the four sets of oil pumps 12 are started. The motors drive the pump impellers to rotate, drawing hydraulic oil from the oil storage bottle 5 through the oil pipe 11. After being pressurized, the oil is transported through the pipeline to the rodless chamber of the hydraulic cylinder 7. The high-pressure oil pushes the piston of the hydraulic piston rod 8 to move forward. The four sets of hydraulic piston rods 8 simultaneously drive the table frame 2 and table legs 3 to expand outward in a synchronized manner. The VFD frequency converter 15 controls the signal to switch the direction of the oil passage. The oil pumps 12 are reversed, and the hydraulic oil in the rod chamber of the hydraulic cylinder 7 flows back to the oil storage bottle 5 under the action of gravity and load. After the oil pumps 12 stop, the check valve 13 is immediately closed. The electromagnetic coil is de-energized, the magnetic field disappears, and the valve core of the check valve 13 seals the valve port under the back pressure of the return spring, blocking the backflow of oil in the oil pipe 11, thereby keeping the table frame 2 and table legs 3 stable when expanding outward.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable mahjong table, comprising a mahjong table (1), a table frame (2), an oil reservoir (5), a hydraulic cylinder (7), and a flow stop valve (13), characterized in that, The mahjong table (1) has a table frame (2) that slides and is fixedly connected to the outer wall surface around the perimeter. The table legs (3) are welded and fixedly connected to the bottom middle of the table frame (2). The connecting rod (4) is welded and fixedly connected to the bottom middle of the mahjong table (1). The oil storage bottle (5) is welded and fixedly connected to the bottom middle of the connecting rod (4). The hydraulic cylinder four-way support (6) is welded and fixedly connected to the bottom middle of the oil storage bottle (5). The hydraulic cylinder four-way support (6) has a hydraulic cylinder (7) that is engaged and fixedly connected to the outer wall surface around the perimeter. The piston of the hydraulic cylinder (7) slides and is connected to the piston hydraulic rod (8) on the inner wall surface. The table frame (2), table legs (3), hydraulic cylinder (7) and piston hydraulic rod (8) are all four in number.

2. The adjustable mahjong table according to claim 1, wherein, The oil storage bottle (5) is welded and fixedly connected to the oil filling pipe (9) at the right end of the top.

3. The adjustable mahjong table according to claim 2, characterized in that, The oil filling pipe (9) of the oil storage bottle is fixedly connected to the threaded sealing cap (10) around the upper side of the outer surface of the oil filling pipe (9).

4. The adjustable mahjong table according to claim 1, wherein, The oil storage bottle (5) has four oil extraction pipes (11) that are fixedly connected to the outer surface of the bottle at all four circumferences.

5. The adjustable mahjong table according to claim 4, wherein, The oil pump (12) is electrically engaged and fixedly connected at the oil inlet of the outer wall surface of the oil pipe (11), and there are four oil pumps (12).

6. The adjustable mahjong table according to claim 5, wherein, The outer wall surface of the oil extraction pipe (11) is connected to the stop valve (13) at the outer side of the oil pump (12), and there are four stop valves (13).

7. The adjustable mahjong table according to claim 6, characterized in that, The top center of the stop valve (13) is electrically connected to the stop valve drive component (14) by an external bolt, and the number of stop valve drive components (14) is four.

8. The adjustable mahjong table according to claim 1, wherein, The VFD frequency converter (15) is electrically fixedly connected to the inner surface of the middle opening at the front end of the table frame (2).

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