A three-drive folding foot for a mahjong table

Abstract

The present invention discloses a three-drive folding foot for a mahjong table, which comprises a base, movable legs and a connecting plate. A traction mechanism is arranged between two leg tracks on the inner wall of the base. A push rod connected to the connecting plate in a rotational manner is arranged at the top of the traction mechanism. The connecting plate is connected to the movable legs through a flipping mechanism. This three-drive folding foot for the mahjong table ensures that the overall mahjong table is within a comfortable height range; by raising the horizontal height of the center position of the mahjong machine tabletop, it meets the height required for the side-standing of the mahjong machine tabletop. When the mahjong machine tabletop is flipped, the center of gravity shifts, but the center of gravity of the mahjong table always remains at the center of gravity position of the base. Without using any electrical components, the purpose of side-standing and flipping can be achieved, saving space when not in use. Its production structure is simple, the production cost is low, and only one operation of flipping the tabletop is required, which is convenient to operate. Without electrical components, the failure rate is low, reducing the maintenance cost.

Description

Technical Field

[0001] The present invention relates to the technical field of tables, and specifically to a three-drive folding foot for a mahjong table. Background Technique

[0002] Chinese mahjong is a leisure game originating from China. It was originally a game for the royal family and nobles, and its history can be traced back more than three or four thousand years. During the long historical evolution process, mahjong gradually spread from the court to the people and was basically finalized in the mid-Qing Dynasty.

[0003] In recent years, in order to make it more convenient to use, various improvements have been made to it. For example: mahjong machines that automatically shuffle and deal cards, intelligent mahjong tables, etc. Many existing mahjong machines are square and cannot be folded up when not in use, occupying a large amount of space. Many improvements have been made to mahjong tables, changing them to be like traditional dining tables in our country that can be stored. However, generally, the mahjong machine itself is relatively heavy, and the center of gravity will shift and it will fall over during the flipping process. Also, due to the space requirements such as arranging cards during the mahjong game, the size of the mahjong machine tabletop is relatively fixed. Often, half of the width of the tabletop is greater than the height of the foot, so it is impossible to achieve flipping. Therefore, the height of the foot needs to be increased, which results in an increase in the overall height of the tabletop and affects the comfort of the general public when using it. The above problems can also be overcome through components such as motors, but the cost is too high. To solve the above problems for a mahjong machine table leg, 2 to 3 drive motors are required to complete it. Summary of the Invention

[0004] The purpose of the present invention is to provide a three-drive folding foot for a mahjong table to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A three-drive folding foot for a mahjong table, including a base, movable legs, and a connecting plate. The movable legs move along the leg tracks provided inside the base. A traction mechanism is arranged between the two leg tracks on the inner wall of the base. A push rod that is rotatably connected to the connecting plate is arranged at the top of the traction mechanism. L-shaped tracks are arranged on the left and right sides of the inner wall of the movable legs. The L-shaped tracks are in rolling connection with the traction mechanism. The connecting plate is connected to the movable legs through a flipping mechanism.

[0006] Preferably, the traction mechanism includes a connecting rod, a lower rotating plate, an upper rotating plate, a first roller, and a second roller; one end of the connecting rod is fixed on the inner wall of the movable leg, and the other end of the connecting rod is rotatably connected to the lower rotating plate; the upper rotating plate is located on the top of the lower rotating plate, and the upper rotating plate is rotatably connected to the lower rotating plate. First rollers are rotatably connected to both sides of one end of the lower rotating plate, and second rollers are rotatably connected to both sides of one end of the upper rotating plate; both the first roller and the second roller are in rolling connection with the L-shaped track; a push rod is rotatably connected to the top of the upper rotating plate.

[0007] Preferably, the flipping mechanism includes a main board, a first connecting seat, a first flap, a second flap, a second connecting seat, and a third flap;

[0008] The top of the main board is rotatably connected to the first connecting seat, the middle of the main board is rotatably connected to one end of the second flap, and the bottom of the main board is rotatably connected to the third flap; the other end of the first flap is rotatably connected to the first connecting seat; the middle of the second flap is rotatably connected to one end of the first flap, and the other end of the second flap is rotatably connected to the second connecting seat; the other end of the third flap is rotatably connected to the second connecting seat; the first connecting seat is fixedly connected to the connecting plate, and the second connecting seat is fixedly connected to the moving leg.

[0009] Preferably, triangular baffles are provided at the top ends of the inner walls of the leg tracks.

[0010] Preferably, moving mechanisms adapted to the leg tracks are provided at the four corners of the bottom of the moving leg.

[0011] Preferably, the moving mechanism is a roller.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The three-drive folding feet of the mahjong table ensure that the overall mahjong table is within a comfortable height range without increasing the height of the table legs. The flipping of the mahjong machine tabletop is completed through a flipping mechanism composed of simple components; at the same time, by raising the horizontal height of the center position of the mahjong machine tabletop, the height required for the side-standing of the mahjong machine tabletop is satisfied, achieving the purpose of folding up the mahjong machine.

[0014] 2. The three-drive folding feet of the mahjong table drive the push-pull rod connected by rotation through the increase in the horizontal height of the center position of the mahjong machine tabletop, and the push-pull rod drives the traction mechanism to move the moving leg. When the mahjong machine tabletop is flipped and the center of gravity shifts, the moving leg that plays a supporting role moves inside the base, keeping the center of gravity of the mahjong table always at the center of gravity position of the base, thus ensuring the overall stability of the mahjong table.

[0015] 3. The three-drive folding feet of the mahjong table can achieve the purpose of side-standing flipping without using any electrical components, saving space when not in use. Its production structure is simple, the production cost is low, and only one operation of flipping the tabletop is required, which is convenient to operate. Without electrical components, the failure rate is low, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the device in the unfolded state in a preferred embodiment of the present invention;

[0017] Figure 2Schematic three-dimensional structure diagram of the device in the retracted state in a preferred embodiment of the present invention;

[0018] Figure 3 is Figure 1 Schematic cross-sectional structure diagram of the side;

[0019] Figure 4 Schematic structure diagram of the traction mechanism of the flipping mechanism in a preferred embodiment of the present invention;

[0020] Figure 5 Schematic structure diagram of one form of the flipping mechanism in a preferred embodiment of the present invention;

[0021] Figure 6 Schematic structure diagram of another form of the flipping mechanism in a preferred embodiment of the present invention;

[0022] Figure 7 Schematic exploded structure diagram of the flipping mechanism in a preferred embodiment of the present invention;

[0023] Figure 8 Schematic structure diagram of the L-shaped track of the flipping mechanism in a preferred embodiment of the present invention.

[0024] In the figure: 1, base; 2, leg track; 3, traction mechanism, 301, connecting rod, 302, lower rotating plate, 303, upper rotating plate, 304, first roller, 305, second roller; 4, moving leg; 5, connecting plate; 6, push-pull rod; 7, flipping mechanism, 701, main board, 702, first connecting seat, 703, first flap, 704, second flap, 705, second connecting seat, 706, third flap; 8, L-shaped track. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-8 , the present invention provides a technical solution:

[0027] Refer to Figures 1-2, A three-drive folding foot for a mahjong table, comprising a base 1, movable legs 4 and a connecting plate 5. The movable legs 4 move along the leg tracks 2 provided at the corresponding two ends inside the base 1. This enables the movable legs 4 to move linearly back and forth from the center of the base 1 to one side edge, achieving the offset of the overall center of gravity of the table and the conversion of the occupied space when the tabletop is flipped. Triangular baffles are provided at the top ends of the inner walls of the leg tracks 2, and the triangular baffles are used to block the rollers of the movable legs 4. Moving mechanisms that cooperate with the leg tracks 2 are provided at the four corners of the bottom of the movable legs 4. The moving mechanisms can use rollers with grooves provided on the outer walls of the rollers, and tracks matching the grooves are fixedly connected to the leg tracks 2 to achieve the purpose of restricting the moving trajectory of the rollers; alternatively, guide rods fixed on the base 1 can be used, and movable collars are wrapped around the outer sides of the guide rods, and the collars are fixed at the four corners of the movable legs 4; thus achieving the purpose of the movable legs 4 moving within the moving trajectory by the driving force. The connecting plate 5 is used to facilitate the connection of the mahjong machine main body.

[0028] Refer to Figure 3 , A traction mechanism 3 for pulling or pushing the movable legs 4 is provided on the inner wall of the base 1 between the two leg tracks 2. Since the movable legs 4 are located between the two leg tracks 2, one end of the traction mechanism 3 is arranged at the center of the movable legs 4 and the two leg tracks 2, making it more convenient to push and pull the movable legs 4.

[0029] Refer to Figure 4 , Among them, the traction mechanism 3 includes a connecting rod 301, a lower rotating plate 302, an upper rotating plate 303, a first roller 304 and a second roller 305;

[0030] One end of the connecting rod 301 is fixed on the inner wall of the movable leg 4, and the other end of the connecting rod 301 is rotatably connected to the lower rotating plate 302 through a hinge or a pin shaft;

[0031] The upper rotating plate 303 is located at the top of the lower rotating plate 302, and the upper rotating plate 303 is rotatably connected to the lower rotating plate 302, and when the upper rotating plate 303 flips upward and moves, it can drive the lower rotating plate 302 to flip and move accordingly; when the upper rotating plate 303 flips downward and moves, it can also drive the lower rotating plate 302 to flip and move accordingly. First rollers 304 are rotatably connected to both sides of one end of the lower rotating plate 302, and second rollers 305 are rotatably connected to both sides of one end of the upper rotating plate 303;

[0032] Both the first roller 304 and the second roller 305 are in rolling connection with the L-shaped track 8; the first roller 304 and the second roller 305 roll inside the L-shaped track 8 to define the moving range and the acting direction of the force of the upper rotating plate 303 and the lower rotating plate 302. At the same time, the first roller 304 mostly moves on the longitudinal track of the L-shaped track 8. When the upper rotating plate 303 and the lower rotating plate 302 are parallel and in contact, the first roller 304 moves to the bottom corner of the longitudinal track of the L-shaped track 8, and it is optimal that the moving leg 4 is at the exact center of the base 1. The upper rotating plate 303, the lower rotating plate 302 and the connecting rod 301 have a certain supporting force on the L-shaped track 8. This prevents the outer wall of the moving leg 4 from being stressed and moving, thus avoiding the situation of the tabletop shaking.

[0033] The upper rotating plate 303 is driven by a push-pull rod 6 rotatably connected at the top. The other end of the push-pull rod 6 is rotatably connected to the connecting plate 5. The up-and-down movement of the push-pull rod 6 drives the upper rotating plate 303 to flip up or down.

[0034] Refer to Figure 3 , at the top of the traction mechanism 3, there is a push-pull rod 6 rotatably connected to the connecting plate 5. When the connecting plate 5 is stressed and flips, it drives the push-pull rod 6 to move up and down. On both the left and right sides of the inner wall of the moving leg 4, there are corresponding L-shaped tracks 8. The L-shaped tracks 8 are in rolling connection with the traction mechanism 3. The traction mechanism 3 moves within the trajectory defined by the L-shaped tracks 8 to drive the moving leg 4 to move horizontally. The connecting plate 5 is rotatably connected to the moving leg 4 through a flipping mechanism 7. The flipping mechanism 7 mainly serves to support and connect the connecting plate 5.

[0035] Refer to Figure 8 , the L-shaped track 8 is used to define the moving trajectory of the first roller 304 and the second roller 305. When the first roller 304 and the second roller 305 move upward inside the L-shaped track 8, they pull the moving leg 4 towards the edge of the base 1. When the first roller 304 and the second roller 305 move downward inside the L-shaped track 8, they push the moving leg 4 towards the center of the base 1.

[0036] Refer to Figures 5-7, wherein the flipping mechanism 7 includes a main board 701, a first connecting seat 702, a first flipping plate 703, a second flipping plate 704, a second connecting seat 705, and a third flipping plate 706;

[0037] The top of the main board 701 is rotatably connected to the first connecting seat 702. The middle of the main board 701 is rotatably connected to one end of the second flipping plate 704. The bottom of the main board 701 is rotatably connected to the third flipping plate 706;

[0038] The other end of the first flipping plate 703 is rotatably connected to the first connecting seat 702;

[0039] The middle part of the second turning plate 704 is rotatably connected to one end of the first turning plate 703, and the other end of the second turning plate 704 is rotatably connected to the second connecting seat 705;

[0040] The other end of the third turning plate 706 is rotatably connected to the second connecting seat 705;

[0041] The first connecting seat 702 is fixedly connected to the connecting plate 5, and the second connecting seat 705 is fixedly connected to the moving support leg 4.

[0042] When folding up the mahjong table, lift it upward from the bottom of one side of the mahjong table, the connecting plate 5 for connection at the bottom of the mahjong machine tabletop. The connecting plate 5 drives the main board 701 and the first turning plate 703 through the first connecting seat 702. The main board 701 and the first turning plate 703 drive the second turning plate 704 and the third turning plate 706 to rotate around the second connecting seat 705. While the flipping mechanism 7 completes the flipping, a morphological change occurs (refer to Figure 6 ), realizing the side flipping of the connecting plate 5 and lifting the central part of the connecting plate 5 upward at the same time, increasing its horizontal height, and ensuring that the height of the moving support leg 4 does not exceed the standard height while meeting the height required for the mahjong machine to stand upright. At the same time, the increase in the horizontal height of the connecting plate 5 drives the push-pull rod 6 to move upward, and then the push-pull rod 6 pulls the upper rotating plate 303 to move upward, thereby driving the second roller 305 to move upward inside the L-shaped track 8. Since one end connection point of the traction mechanism 3 is fixed and the length is fixed, the traction mechanism 3 will apply a force to the L-shaped track 8, causing the moving support leg 4 to move along the support leg track 2 towards the edge of the base.

[0043] During the working process, one end of the connecting plate 5 is stressed and rotates around the flipping mechanism 7. During the rotation process, the horizontal height of the central position of the connecting plate 5 gradually increases, and at the same time, it drives the push-pull rod 6 to rise. The push-pull rod 6 drives the upper rotating plate 303, and the upper rotating plate 303 drives the second roller 305 to move upward inside the L-shaped track 8, and at the same time pulls the moving support leg 4 to move, realizing the offset of the center of gravity of the mahjong tabletop. After the upper rotating plate 303 moves to a certain height, it drives the lower rotating plate 302 to move upward, thereby driving the second roller 305 to enter the longitudinal track of the L-shaped track 8 and move upward. The moving support leg 4 is pulled by the lower rotating plate 302 until the mahjong machine tabletop is vertically flipped.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle part", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0045] Furthermore, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include at least one such feature.

[0046] In the present invention, unless otherwise clearly specified and defined, terms such as "installed", "set", "connected", "fixed", "swiveling connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-drive folding foot for a mahjong table, comprising a base (1), movable legs (4) and a connecting plate (5), wherein the movable legs (4) move along leg tracks (2) provided inside the base (1), and is characterized in that: Inside the inner wall of the base (1) between the two leg tracks (2), a traction mechanism (3) is provided. At the top of the traction mechanism (3), a push-pull rod (6) rotatably connected to the connecting plate (5) is provided. On the left and right sides of the inner wall of the movable leg (4), L-shaped tracks (8) are provided. The L-shaped tracks (8) are in rolling connection with the traction mechanism (3). The connecting plate (5) is connected to the movable leg (4) through a flipping mechanism (7). The traction mechanism (3) includes a connecting rod (301), a lower rotating plate (302), an upper rotating plate (303), a first roller (304), and a second roller (305). One end of the connecting rod (301) is fixed to the inner wall of the movable leg (4), and the other end of the connecting rod (301) is rotatably connected to the lower rotating plate (302). The upper rotating plate (303) is located on the top of the lower rotating plate (302), and the upper rotating plate (303) is rotatably connected to the lower rotating plate (302). On both sides of one end of the lower rotating plate (302), first rollers (304) are rotatably connected. On both sides of one end of the upper rotating plate (303), second rollers (305) are rotatably connected. Both the first roller (304) and the second roller (305) are in rolling connection with the L-shaped track (8). A push-pull rod (6) is rotatably connected to the top of the upper rotating plate (303). At the four corners of the bottom of the movable leg (4), moving mechanisms matching the leg tracks (2) are provided.

2. The three-drive folding foot of a mahjong table according to claim 1, wherein: The flipping mechanism (7) includes a main board (701), a first connecting seat (702), a first flap (703), a second flap (704), a second connecting seat (705), and a third flap (706). The top of the main board (701) is rotatably connected to the first connecting seat (702). The middle of the main board (701) is rotatably connected to one end of the second flap (704). The bottom of the main board (701) is rotatably connected to the third flap (706). The other end of the first flap (703) is rotatably connected to the first connecting seat (702). The middle of the second flap (704) is rotatably connected to one end of the first flap (703). The other end of the second flap (704) is rotatably connected to the second connecting seat (705). The other end of the third flap (706) is rotatably connected to the second connecting seat (705). The first connecting seat (702) is fixedly connected to the connecting plate (5), and the second connecting seat (705) is fixedly connected to the movable leg (4).

3. A three-drive folding foot for a mahjong table according to claim 1, characterized in that: At the top ends of the inner walls of the leg tracks (2), triangular baffles are provided.

4. A three-drive folding foot for a mahjong table according to claim 1, characterized in that: The moving mechanism is a roller.

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