A hidden combination dining table support assembly structure

Abstract

The utility model discloses a hidden combination dining table support component structure, including the desk board and the vertical pipe leg, the bottom screw thread connection of desk board is fixed with screw, the length and width direction on the bottom of desk board is fixed with long crossbeam and short longitudinal beam through screw respectively, and the below of long crossbeam is provided with crossbeam U type bayonet, the top of short longitudinal beam is provided with longitudinal beam U type bayonet, the bolt is inserted between long crossbeam and short longitudinal beam, the top of vertical pipe leg is provided with right angle gap, right angle gap department is provided with the dismounting part for quick firm connection desk board and vertical pipe leg. This hidden combination dining table support component structure, through screw first fixed long crossbeam and short longitudinal beam on the desk board, and make long crossbeam and short longitudinal beam mutual occlusion, then through the dismounting part can quick firm connection fixed desk board and vertical pipe leg, improve the practicality and convenience of combination dining table.

Description

Technical Field

[0001] This utility model relates to the field of modular dining table manufacturing technology, specifically a hidden modular dining table support component structure. Background Technology

[0002] Modular dining tables are a new type of dining table with a flexible structure or integrated multiple functions. Through modular design or functional expansion, they meet diverse dining needs. Modular dining tables, through multifunctional design and optimized materials, break through the limitations of traditional single-function dining tables, achieving upgrades in practicality, adaptability, and user experience.

[0003] Most existing dining tables are fixed to the tabletop and legs by welding or by connecting multiple parts. However, this connection method is not convenient for quick disassembly or installation of the tabletop and legs. Disassembly or installation is time-consuming and laborious, and its practicality is insufficient. In addition, the connection between the tabletop and legs fixed by multiple parts is less stable, and the dining table is prone to shaking after a period of use, which affects the stability of use and user experience.

[0004] Several improvements have been made in the prior art to enhance the ease of assembly and disassembly. For example, Chinese patent CN215737494U discloses a table leg and frame that are easy to assemble and disassemble. This design uses a support member with a connecting groove at the top of the support leg, allowing the end of the support rod to be inserted into the groove and fixed with screws. While this solution improves the ease of assembly and disassembly to some extent, it still has the following shortcomings: First, the connection points are independent of each other, lacking an effective overall linkage mechanism, resulting in insufficient overall structural stability; second, it relies on a single lateral screw fastening method, which is prone to loosening during long-term use.

[0005] Therefore, it is necessary to design a dining table support component structure that is easy to assemble and disassemble, ensures long-term stability and reliability of the connection, and takes into account both aesthetics and practicality. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this utility model provides a concealed modular dining table support component structure. Through a modular frame interlocking structure and a two-way locking mechanism, it solves the problems of inconvenient disassembly and assembly of the tabletop and legs, and insufficient connection stability.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a concealed combined dining table support assembly structure, including a tabletop and upright legs. The bottom of the tabletop is threadedly fixed with screws. A long horizontal beam and a short vertical beam are respectively fixed to the bottom of the tabletop in the length and width directions by screws. A U-shaped slot for the horizontal beam is provided below the long horizontal beam, and a U-shaped slot for the vertical beam is provided above the short vertical beam. Bolts are inserted between the long horizontal beam and the short vertical beam. A right-angle notch is provided at the top of the upright legs. A disassembly and assembly component for quickly and securely connecting the tabletop and the upright legs is provided at the right-angle notch. M8 bolts can be used.

[0008] The assembly and disassembly components include a riser side hole, which is opened on the side of the riser leg. A double-leg connecting piece is movably connected at the right-angle notch. At least one reserved through hole is opened on the outside of the double-leg connecting piece, and at least one reserved screw hole is opened inside the double-leg connecting piece. At least one sealing plate pin is fixed on the side of the double-leg connecting piece, and a round head bolt is inserted into the reserved through hole.

[0009] Preferably, the riser side hole is adapted to the sealing plate pin, and the double-leg connecting piece is welded and fixed to the riser leg through the riser side hole and the sealing plate pin.

[0010] Preferably, the two feet on the double-foot connecting piece extend beyond the riser leg, and each foot has a pre-drilled hole.

[0011] Preferably, both the interior of the crossbeam U-shaped bayonet and the interior of the longitudinal beam U-shaped bayonet are provided with through holes, and the bolts pass through the through holes on the crossbeam U-shaped bayonet and the longitudinal beam U-shaped bayonet, and are threadedly connected and fixed with the reserved screw holes.

[0012] Preferably, a threaded hole is provided at the bottom of the long crossbeam and inside the U-shaped opening of the crossbeam, and a threaded hole is provided at the bottom of the short longitudinal beam and inside the U-shaped opening of the longitudinal beam. The position of the reserved through hole is adapted to the threaded hole. After the round head bolt passes through the reserved through hole, it is connected and fixed to the threaded hole on the long crossbeam and the short longitudinal beam respectively.

[0013] Preferably, the screws pass through the long crossbeam and the short longitudinal beam respectively and are threadedly connected and fixed to the tabletop, and the U-shaped bayonet of the crossbeam and the U-shaped bayonet of the longitudinal beam are compatible.

[0014] Preferably, the bottom of the riser leg is fitted with a plug foot pad that matches the bottom opening. The plug foot pad has a threaded hole and a movable anti-slip pad that is movably screwed through the threaded hole for leveling the ground. The plug foot pad and the movable anti-slip pad can be made of rubber or metal.

[0015] Preferably, the riser leg can be one of four different structures: square leg, fan-shaped leg, elliptical leg, or round 48 tapered leg. The four different riser legs correspond to different shapes of double-foot connecting pieces that are mutually compatible.

[0016] Preferably, the double-leg connecting piece has two reserved through holes on its outer side, a reserved screw hole on its inner side, and two sealing plate pins fixed on its side.

[0017] Compared with the prior art, the present invention provides a concealed combined dining table support component structure, which has the following beneficial effects: 1. The structure of this concealed combination dining table support component is achieved by welding and fixing the double-leg connecting pieces to the upright legs. The two ends of the long crossbeam and the short longitudinal beam are placed on the feet of the two double-leg connecting pieces on the long and short sides of the tabletop, respectively. The U-shaped buckles on the long crossbeam and the U-shaped buckles on the short longitudinal beam engage with each other, thereby connecting the two ends of the long crossbeam on the two long sides that support the tabletop with the two ends of the short longitudinal beam on the two short sides. This allows the four upright legs to be quickly combined with the two long crossbeams and the two short longitudinal beams, respectively, for subsequent quick installation of the tabletop. 2. The concealed combination dining table support assembly structure can be fixedly connected to the long crossbeam and short longitudinal beam and the double leg connecting piece from the top with bolts, and to the long crossbeam and short longitudinal beam and the double leg connecting piece from the bottom with round head bolts. Then, the tabletop is fixed to the two long crossbeams and two short longitudinal beams that are distributed in a rectangular shape with screws. This can fix the tabletop to the long crossbeams and short longitudinal beams, thereby making the connection between the tabletop and the upright legs stable and fixed. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the hidden combined dining table support component structure described in this utility model; Figure 2 This is an exploded view of the tabletop, long crossbeam, and short longitudinal beam of the concealed combined dining table support assembly structure described in this utility model. Figure 3 This is an exploded view of the double-leg connecting piece and the upright leg of the concealed combined dining table support assembly structure described in this utility model; Figure 4 This is a schematic diagram of the long horizontal beam and short vertical beam of the concealed combined dining table support assembly structure described in this utility model.

[0019] The markings in the attached diagram are described below: 1. Tabletop; 2. Riser legs; 3. Screws; 4. Long crossbeam; 5. Short longitudinal beam; 6. Crossbeam U-shaped clamp; 7. Longitudinal beam U-shaped clamp; 8. Bolt; 9. Right-angle notch; 10. Riser side hole; 11. Double-leg connecting piece; 12. Reserved through hole; 13. Reserved screw hole; 14. Sealing plate insert; 15. Round head bolt. Detailed Implementation

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Please see Figure 1-4 This utility model provides a concealed combination dining table support component structure, including a tabletop 1 and upright legs 2. The bottom of the tabletop 1 is threadedly connected and fixed with screws 3. A long crossbeam 4 and a short longitudinal beam 5 are respectively fixed to the bottom length and width of the tabletop 1 by screws 3. A crossbeam U-shaped latch 6 is opened below the long crossbeam 4, and a longitudinal beam U-shaped latch 7 is opened above the short longitudinal beam 5. Bolts 8 are inserted between the long crossbeam 4 and the short longitudinal beam 5. A right-angle notch 9 is opened at the top of the upright legs 2. A disassembly and assembly component for quickly and securely connecting the tabletop 1 and the upright legs 2 is provided at the right-angle notch 9. M8 bolts can be used.

[0022] The assembly / disassembly components include a riser side hole 10, which is located on the side of the riser leg 2. A double-leg connecting piece 11 is movably connected at a right-angle notch 9. At least one pre-drilled through hole 12 is provided on the outside of the double-leg connecting piece 11, and at least one pre-drilled screw hole 13 is provided inside. At least one sealing plate insert 14 is fixed to the side of the double-leg connecting piece 11. A round-headed bolt 15 is inserted into the pre-drilled through hole 12. The double-leg connecting piece 11 is placed at the right-angle notch 9, and the sealing plate is then... Insert the plate pin 14 into the side hole 10 of the riser and weld the plate pin 14 to the riser leg 2. Then, place the long crossbeam 4 and the short longitudinal beam 5 on the two legs of the double-leg connecting plate 11, so that the crossbeam U-shaped bayonet 6 and the longitudinal beam U-shaped bayonet 7 engage. Then, fix the long crossbeam 4 and the short longitudinal beam 5 to the double-leg connecting plate 11 with the bolt 8 and the round head bolt 15. Fix the table 1 to the long crossbeam 4 and the short longitudinal beam 5 with the screw 3, so that the table 1 and the riser leg 2 can be quickly and firmly connected.

[0023] Furthermore, the riser side hole 10 is adapted to the sealing plate pin 14, and the double-leg connecting piece 11 is welded and fixed to the riser leg 2 through the riser side hole 10 and the sealing plate pin 14. By placing the double-leg connecting piece 11 at the right angle notch 9 and inserting the sealing plate pin 14 into the riser side hole 10, and then welding and fixing the connection between the sealing plate pin 14 and the riser side hole 10, the sealing plate pin 14 and the riser leg 2 can be stably connected and fixed.

[0024] Furthermore, the two feet on the double-foot connecting piece 11 extend beyond the riser leg 2, and each foot has a reserved through hole 12. The two feet on the double-foot connecting piece 11 and the double-foot connecting piece 11 are an integrated structure, which facilitates the fixed connection with the threaded holes at the bottom of the long cross beam 4 and the short longitudinal beam 5 by passing the round head bolt 15 through the reserved through hole 12. Therefore, the long cross beam 4 and the short longitudinal beam 5 can be fixedly connected to the double-foot connecting piece 11 from the bottom by the round head bolt 15.

[0025] Furthermore, through holes are provided inside the U-shaped bayonet 6 of the crossbeam and the U-shaped bayonet 7 of the longitudinal beam. Bolts 8 pass through the through holes on the U-shaped bayonet 6 of the crossbeam and the U-shaped bayonet 7 of the longitudinal beam and are threadedly connected and fixed with the reserved screw hole 13. This makes it easy for the M8 bolts 8 to be threadedly connected and fixed with the reserved screw hole 13 after passing through the through hole. Thus, the long crossbeam 4 and the short longitudinal beam 5 can be fixedly connected to the double-leg connecting piece 11 from the top by means of bolts 8.

[0026] Furthermore, a threaded hole is provided at the bottom of the long crossbeam 4 and inside the U-shaped bayonet 6 of the crossbeam, and a threaded hole is provided at the bottom of the short longitudinal beam 5 and inside the U-shaped bayonet 7 of the longitudinal beam. The position of the reserved through hole 12 is adapted to the threaded hole. After the round head bolt 15 passes through the reserved through hole 12, it is connected and fixed to the threaded hole on the long crossbeam 4 and the short longitudinal beam 5 respectively, so that after the round head bolt 15 passes through the reserved through hole 12, the long crossbeam 4 and the short longitudinal beam 5 are fixedly connected to the double-leg connecting piece 11 by the round head bolt 15.

[0027] Furthermore, screws 3 pass through the long crossbeam 4 and the short longitudinal beam 5 respectively and are threadedly connected to the tabletop 1 for fixation. This facilitates the fixation of the tabletop 1 to the long crossbeam 4 and the short longitudinal beam 5 using screws 3. The crossbeam U-shaped latches 6 and the longitudinal beam U-shaped latches 7 are compatible. The crossbeam U-shaped latches 6 on the short longitudinal beam 5 are placed upwards, and the longitudinal beam U-shaped latches 7 on the long crossbeam 4 are placed downwards, so that the crossbeam U-shaped latches 6 and the longitudinal beam U-shaped latches 7 interlock with each other. Therefore, the two ends of the long crossbeam 4 and the two ends of the short longitudinal beam 5 can be connected to each other. Furthermore, bolts 8 pass through the through holes on the crossbeam U-shaped latches 6 and the longitudinal beam U-shaped latches 7 and are threadedly connected to the reserved screw holes 13 for fixation. Therefore, the crossbeam U-shaped latches 6 and the longitudinal beam U-shaped latches 7 can be fixedly connected to each other.

[0028] Furthermore, the bottom of the riser leg 2 is fitted with a plug foot pad that matches the bottom opening. The plug foot pad has a threaded hole and a movable anti-slip pad that is movably screwed through the threaded hole for leveling the ground. By rotating the anti-slip pad, the tabletop is leveled to ensure stability and prevent wobbling, while effectively preventing slipping and protecting the floor. The plug foot pad and the movable anti-slip pad can be made of rubber or metal.

[0029] Furthermore, the riser leg 2 can have four different structures: square leg, fan-shaped leg, oval leg, or 48mm diameter constricted tube leg. The four different riser legs 2 correspond to different shapes of double-leg connecting pieces 11 for mutual adaptation. The square leg has four right-angled corners of the riser leg 2, and the corresponding double-leg connecting piece 11 is also square. The fan-shaped leg has a fan-shaped corner at the diagonal of the right-angled notch 9, and the corresponding double-leg connecting piece 11 is also fan-shaped. The oval leg has an elliptical riser leg 2, and the corresponding double-leg connecting piece 11 is also elliptical. The 48mm diameter constricted tube leg has a 48mm diameter circular tube leg of the riser leg 2, and the corresponding double-leg connecting piece 11 is also 48mm diameter. Therefore, the tabletop 1 can be equipped with riser legs 2 of different shapes.

[0030] Furthermore, the double-leg connecting piece 11 has two reserved through holes 12 on its exterior, a reserved screw hole 13 on its interior, and two sealing plate pins 14 fixed on its side.

[0031] The working principle of this utility model is as follows: In use, the double-leg connecting piece 11 is placed on the right-angle notch 9, and the two sealing pins 14 on the double-leg connecting piece 11 are inserted into the two riser side holes 10. Then, the sealing pins 14 are welded and fixed at the connection between them and the riser side holes 10. Two grooves adapted to the double legs on the double-leg connecting piece 11 are also provided on the right-angle notch 9. The grooves are used to limit the horizontal movement of the double legs on the double-leg connecting piece 11. The connection between the double legs of the double-leg connecting piece 11 and the grooves is welded from the bottom. The weld is fixed, with clear weld texture, no sand holes, incomplete welds, or missing welds. The large circular weld surface is ground to a smooth, seamless finish, allowing for the fixed connection of the double-leg connecting piece 11 to the upright leg 2. Then, the two ends of the short longitudinal beam 5 are placed on the feet of the two double-leg connecting pieces 11 on one side of the short side of the tabletop 1. Next, the two ends of the long horizontal beam 4 are placed on the feet of the two double-leg connecting pieces 11 on one side of the long side of the tabletop 1. The crossbeam U-shaped latch 6 on the long horizontal beam 4 and the longitudinal beam U-shaped latch 7 on the short longitudinal beam 5 are then engaged, thus enabling the two long sides of the tabletop 1 to be supported. The two ends of the long horizontal beam 4 are connected to the two ends of the short longitudinal beams 5 on the two short sides, so that the four upright legs 2 can be quickly combined with the two long horizontal beams 4 and the two short longitudinal beams 5 respectively. Then, the bolts 8 are passed through the through holes on the U-shaped bayonet 6 of the horizontal beam and the U-shaped bayonet 7 of the longitudinal beam, and the bolts 8 are threaded to the reserved screw holes 13 for fixation. Therefore, not only can the long horizontal beam 4 and the short longitudinal beams 5 be fixedly connected to the double-leg connecting piece 11 from the top, but the long horizontal beam 4 and the short longitudinal beams 5 can also be fixedly connected. Then, the round head bolts 15 are passed through the reserved through holes 1. 2. The tabletop 1 is then fixed to the threaded holes at the bottom of the long crossbeam 4 and the short longitudinal beam 5, thereby fixing the long crossbeam 4 and the short longitudinal beam 5 to the double-leg connecting piece 11 from the bottom. Finally, the tabletop 1 is fixed to the two long crossbeams 4 and the two short longitudinal beams 5, which are distributed in a rectangular shape, by screws 3. This can fix the tabletop 1 to the long crossbeam 4 and the short longitudinal beam 5, thereby making the connection between the tabletop 1 and the upright leg 2 firmly connected and fixed. Similarly, when it is necessary to disassemble the dining table, simply reverse the above steps to quickly disassemble the tabletop 1 and the upright leg 2.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concealed modular dining table support assembly structure, comprising a tabletop (1) and upright legs (2), characterized in that: The bottom of the tabletop (1) is fixed with screws (3). The bottom of the tabletop (1) is fixed with a long crossbeam (4) and a short longitudinal beam (5) respectively by screws (3) in the length and width directions. A crossbeam U-shaped slot (6) is provided below the long crossbeam (4), and a longitudinal beam U-shaped slot (7) is provided above the short longitudinal beam (5). Bolts (8) are inserted between the long crossbeam (4) and the short longitudinal beam (5). A right-angle notch (9) is provided at the top of the upright leg (2). A disassembly and assembly component for quickly and securely connecting the tabletop (1) and the upright leg (2) is provided at the right-angle notch (9).

2. The concealed combined dining table support assembly structure according to claim 1, characterized in that: The disassembly and assembly components include a riser side hole (10), which is opened on the side of the riser leg (2). A double-leg connecting piece (11) is movably connected at the right-angle notch (9). At least one reserved through hole (12) is opened on the outside of the double-leg connecting piece (11). At least one reserved screw hole (13) is opened inside the double-leg connecting piece (11). At least one sealing plate insert (14) is fixed on the side of the double-leg connecting piece (11). A round head bolt (15) is inserted into the reserved through hole (12).

3. The concealed combined dining table support assembly structure according to claim 2, characterized in that: The riser side hole (10) is adapted to the sealing plate pin (14), and the double-leg connecting piece (11) is welded and fixed to the riser leg (2) through the riser side hole (10) and the sealing plate pin (14).

4. The concealed combined dining table support assembly structure according to claim 2, characterized in that: The two feet on the double-foot connecting piece (11) extend beyond the riser leg (2), and each foot has a reserved through hole (12).

5. The concealed combined dining table support assembly structure according to claim 1, characterized in that: Through holes are provided inside the U-shaped bayonet (6) of the crossbeam and the U-shaped bayonet (7) of the longitudinal beam. The bolt (8) passes through the through holes on the U-shaped bayonet (6) of the crossbeam and the U-shaped bayonet (7) of the longitudinal beam and is threadedly connected and fixed with the reserved screw hole (13).

6. The concealed combined dining table support assembly structure according to claim 2, characterized in that: The bottom of the long crossbeam (4) and the inner side of the crossbeam U-shaped bayonet (6) are provided with threaded holes. The bottom of the short longitudinal beam (5) and the inner side of the longitudinal beam U-shaped bayonet (7) are provided with threaded holes. The position of the reserved through hole (12) is adapted to the threaded hole. After the round head bolt (15) passes through the reserved through hole (12), it is connected and fixed to the threaded holes on the long crossbeam (4) and the short longitudinal beam (5) respectively.

7. The concealed combined dining table support assembly structure according to claim 1, characterized in that: The screws (3) pass through the long crossbeam (4) and the short longitudinal beam (5) respectively and are threadedly connected to the table (1). The U-shaped bayonet (6) of the crossbeam and the U-shaped bayonet (7) of the longitudinal beam are compatible.

8. The concealed combined dining table support assembly structure according to claim 1, characterized in that: The bottom of the riser leg (2) is fitted with a plug foot pad that matches the bottom opening. The plug foot pad is provided with a threaded hole and a movable anti-slip pad for leveling the ground is movably connected through the threaded hole. The plug foot pad and the movable anti-slip pad can be made of rubber or metal.

9. The concealed combined dining table support assembly structure according to claim 1, characterized in that: The riser leg (2) can be one of four different structures: square leg, fan-shaped leg, elliptical leg or rounded tube leg. The four different riser legs (2) correspond to different shapes of double foot connecting pieces (11) that are compatible with each other.

10. The concealed combined dining table support assembly structure according to claim 2, characterized in that: The double-leg connecting piece (11) has two reserved through holes (12) on its outside, a reserved screw hole (13) on its inside, and two sealing plate pins (14) fixed on its side.

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