A table leg and frame connection structure
The table leg and frame design using hollow tubing and a detachable connection structure solves the problem of inconvenient disassembly due to the welded connection between the table legs and frame. This achieves the effect of reducing space after the table is disassembled, facilitating transportation, and enabling quick and stable assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO LINGXIN HOME FURNISHING CO LTD
- Filing Date
- 2025-08-30
- Publication Date
- 2026-07-03
AI Technical Summary
The existing welding connection method between the table legs and the table frame results in incomplete disassembly and inconvenient transportation.
The table legs and frame components are made of hollow tubing. By incorporating a detachable connection structure at the joint, including notches and grooves, combined with spot welding, the table legs and frame can be detachably connected.
The table can be disassembled to reduce space, making transportation convenient, and assembly quick and stable, thus reducing packaging and transportation costs.
Smart Images

Figure CN224453310U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of furniture technology, specifically to a table leg and frame connection structure. Background Technology
[0002] In the field of modern furniture design and manufacturing, tables are common pieces of furniture, and the ease of use and practicality of their structure are key research and development focuses. The way the table legs are connected to the table frame is crucial to the table's assembly efficiency, ease of transportation, and stability in use; most existing table frames are formed by welding crossbeams between the table legs, which, while sturdy, is extremely inconvenient for transportation.
[0003] Patent document CN213088422U discloses a table frame connection structure, a table frame, and an office desk, including: a welded pipe fitting, one end of which is pre-welded to the table leg crossbeam; a tapered connector fixedly disposed on the other end of the welded pipe fitting; a bevel fixedly disposed within the end of the table leg connecting crossbeam; a through hole formed on the top surface of the table leg connecting crossbeam and located inside the bevel; and connecting screws; during connection, the tapered connector is inserted into the end of the table leg connecting crossbeam, the bevel of the tapered connector and the bevel engage in contact, and the first connecting screw hole on the tapered connector aligns with the second connecting screw hole on the bevel; the connecting screw enters the table leg connecting crossbeam through the through hole, and is screwed into the second connecting screw hole and the first connecting screw hole in sequence before tightening; the connection structure combining the welded pipe fitting and the tapered connector solves the problem of inconvenient assembly and disassembly of existing office desk frames.
[0004] However, the table legs are connected to the table legs by welding. Even after the table legs are removed, the table legs still take up a lot of space, which is inconvenient for transportation. Summary of the Invention
[0005] This invention aims to solve the technical problem that the disassembly of table legs and frames is not thorough enough in the existing technology.
[0006] To achieve the above objectives, the technical solution of this utility model is: a table leg and table frame connection structure, including a table frame assembly and a table leg assembly, wherein the table leg assembly is fixedly connected to the table frame assembly, the table frame assembly includes a first horizontal bar and a second horizontal bar arranged in parallel, one end of the first horizontal bar and the second horizontal bar is provided with a first vertical bar, and the other end is provided with a second vertical bar, and both ends of the first horizontal bar, the second horizontal bar, the first vertical bar and the second vertical bar are provided with connecting structures, and the first horizontal bar, the second horizontal bar, the first vertical bar and the second vertical bar are connected by the connecting structures to form a table frame;
[0007] Table leg assemblies are provided at the connection points of the first horizontal bar, the second horizontal bar, the first vertical bar, and the second vertical bar. The table leg assembly includes a connecting component that is fixedly connected to the table frame, and the table legs are detachably provided on the connecting component. The first horizontal bar, the second horizontal bar, the first vertical bar, and the second vertical bar are all made of hollow tubing. The connecting structure includes a notch opened at one end of the hollow tubing, and a first groove and a second groove are respectively opened at both ends of the notch.
[0008] This design incorporates connecting components on the table frame, which connect the table legs. When disassembling, the table frame and legs can be separated, ensuring a secure connection. This further reduces the space occupied by the disassembled table. Additionally, the table frame is composed of multiple horizontal and vertical bars connected together by a connecting structure, providing a secure connection while facilitating assembly. The disassembled state also reduces packaging space. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0010] Figure 2 This is a schematic diagram of the structure after removing part of the table legs in an embodiment of the present invention;
[0011] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0012] Figure 4 This is a schematic diagram of the structure of the first horizontal bar and the first vertical bar in an embodiment of this utility model;
[0013] Figure 5 This is a schematic diagram of the connecting component in an embodiment of the present invention. Detailed Implementation
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0015] like Figures 1 to 5 As shown, a table leg and table frame connection structure includes a table frame assembly 1 and a table leg assembly 2, with the table leg assembly 2 fixedly connected to the table frame assembly 1. The table frame assembly 1 includes a first horizontal bar 11 and a second horizontal bar 12 arranged in parallel. A first vertical bar 13 is provided at one end of the first horizontal bar 11 and the second horizontal bar 12, and a second vertical bar 14 is provided at the other end. A connecting structure 10 is provided at both ends of the first horizontal bar 11, the second horizontal bar 12, the first vertical bar 13, and the second vertical bar 14. The first horizontal bar 11, the second horizontal bar 12, the first vertical bar 13, and the second vertical bar 14 are connected by the connecting structure 10 to form a table frame 100.
[0016] Each rod is connected at both ends by a connecting structure 10, ensuring the connection strength of the first horizontal bar 11, the second horizontal bar 12, the first vertical bar 13, and the second vertical bar 14. This avoids the problems of easy loosening of traditional bolt connections or easy breakage of welded connections, and enhances the overall anti-shaking ability of the table frame 100. At the same time, users can quickly assemble the first horizontal bar 11, the second horizontal bar 12, the first vertical bar 13, and the second vertical bar 14 into the table frame 100 without the need for complicated tools, which greatly shortens the assembly time.
[0017] like Figure 4 As shown, the connecting structure 10 includes a notch 101 at one end of the hollow tube. A first groove 102 and a second groove 103 are respectively provided at both ends of the notch 101. The distance between the first groove 102 and the second groove 103 is the distance between the two long sides of the hollow tube. In this embodiment, the first groove 102 is provided on the end face of the hollow tube, which makes the tube without protruding after assembly, the connection is more aesthetically pleasing, and it is convenient to install the table legs. During assembly, the first horizontal bar 11 and the first vertical bar 13 are interlocked. The horizontal and vertical degrees of freedom of the first horizontal bar 11 and the first vertical bar 13 are restricted, and the connection is reliable. The first horizontal bar 11 and the second vertical bar 14, the second horizontal bar 12 and the first vertical bar 13, and the second horizontal bar 12 and the second vertical bar 14 are all assembled by this connection method.
[0018] The first horizontal bar 11, the second horizontal bar 12, the first vertical bar 13, and the second vertical bar 14 are all made of hollow tubing. In this embodiment, the cross-section of the hollow tubing is rectangular. The long side of the rectangular cross-section can provide stronger bending resistance and improve the load-bearing capacity of the table frame 100.
[0019] like Figure 2 , Figure 3 and Figure 5 As shown, table leg assemblies 2 are provided at the connection points of the first horizontal bar 11, the second horizontal bar 12, the first vertical bar 13, and the second vertical bar 14. Each table leg assembly 2 includes a connecting component 21 that is fixedly connected to the table frame 100, and table legs 22 are detachably mounted on the connecting component 21. In this embodiment, the connecting component 21 is fixedly connected to the table frame 100 by spot welding. Compared to full welding, spot welding involves fewer weld points, results in less deformation after welding, and leads to higher mass production efficiency. Figure 3 The H in the figure represents a weld point. To make the structure of the table frame 100 more stable, the weld point can be located at the connection structure 10.
[0020] The table legs 22 and the connecting components 21 form a detachable connection, allowing the table frame 100 and table legs 22 to be packaged separately, significantly reducing the overall transport volume.
[0021] The connecting component 21 includes a transverse connecting member 211 and a longitudinal connecting member 212 that are interconnected by the connecting structure 10. Table legs 22 are provided on the transverse connecting member 211 and / or the longitudinal connecting member 212. In this embodiment, table legs 22 are connected to both the transverse connecting member 211 and the longitudinal connecting member 212, and the table legs 22 at the same corner are perpendicular to each other. The transverse connecting member 211 and the longitudinal connecting member 212 are located below the table frame 100. The transverse connecting member 211 is fixedly connected to the first crossbar 11 by spot welding, and the longitudinal connecting member 212 is fixedly connected to the first vertical bar 13 by spot welding.
[0022] like Figure 1 and Figure 2 As shown, due to the long length of the table legs, they may bend under the action of internal stress. Once bending occurs, the two perpendicular table legs 22 will fork at the end away from the connecting component 21, affecting the aesthetics and use. Therefore, right-angle connecting blocks 220 are set on the inner side of the bottom of the two table legs 22 by screws to tightly connect the bottom of the two table legs 22.
[0023] like Figure 2 As shown, one or more reinforcing crossbars 15 are provided between the first crossbar 11 and the second crossbar 12. In this embodiment, two reinforcing crossbars 15 are provided. One end of the reinforcing crossbar 15 is welded to the first longitudinal bar 13, and the other end of the reinforcing crossbar 15 is welded to the second longitudinal bar 14. Reinforcing longitudinal bars 16 are provided between the first crossbar 11 and the reinforcing crossbar 15, and between the second crossbar 12 and the reinforcing crossbar 15. Reinforcing longitudinal bars 16 are also provided between the two reinforcing crossbars 15. The first crossbar 11 and the second crossbar 12 serve as the main frame of the table and can bear the basic support along the length of the table. After adding two reinforcing crossbars 15, the table is divided into multiple areas along the width of the table. With the addition of the reinforcing longitudinal bars 16, a grid-like support structure is finally formed. This structure can distribute the pressure of the tabletop to multiple crossbars and longitudinal bars, avoiding the pressure from concentrating on a single crossbar or longitudinal bar, which could lead to deformation.
[0024] In this embodiment, as Figure 3 and Figure 5 As shown, the table frame 100 has a first through hole 104 for connecting the table legs 22; both the transverse connector 211 and the longitudinal connector 212 have second through holes 105 for connecting the table legs 22. Fasteners extend from the inside of the table frame 100 and the connecting assembly 21 outwards through the first through hole 104 and the second through hole 105 respectively into the table legs 22, thus fixing the table legs 22 to the table frame 100 and the connecting assembly 21. In this embodiment, the fasteners are typically screws.
[0025] In this design, table legs 22 are set at both ends of the first vertical bar through connecting components 21. The connecting components 21 and table legs 22 are detachable, allowing the table to be further disassembled. This design maximizes the disassembly of the table while maintaining its integrity. It has a simple structure, is easy to assemble and disassemble, and has low packaging, transportation and storage costs.
Claims
1. A table leg and table frame connection structure, comprising a table frame assembly (1) and a table leg assembly (2), wherein the table leg assembly (2) is fixedly connected to the table frame assembly (1), characterized in that: The table frame assembly (1) includes a first horizontal bar (11) and a second horizontal bar (12) arranged in parallel. One end of the first horizontal bar (11) and the second horizontal bar (12) is provided with a first vertical bar (13) and the other end is provided with a second vertical bar (14). A connecting structure (10) is provided at both ends of the first horizontal bar (11), the second horizontal bar (12), the first vertical bar (13) and the second vertical bar (14). The first horizontal bar (11), the second horizontal bar (12), the first vertical bar (13) and the second vertical bar (14) are connected by the connecting structure (10) to form a table frame (100). Table leg assemblies (2) are provided at the connection points of the first horizontal bar (11), the second horizontal bar (12), the first vertical bar (13), and the second vertical bar (14). The table leg assembly (2) includes a connecting component (21) that is fixedly connected to the table frame (100), and table legs (22) are detachably provided on the connecting component (21). The first horizontal bar (11), the second horizontal bar (12), the first vertical bar (13), and the second vertical bar (14) are all made of hollow tubing; The connection structure (10) includes a notch (101) at one end of the hollow tube, and a first groove (102) and a second groove (103) are respectively provided at both ends of the notch (101).
2. The table leg table deck connection structure of claim 1, wherein: The connecting component (21) includes a transverse connector (211) and a longitudinal connector (212) connected to each other by a connecting structure (10), and table legs (22) are provided on the transverse connector (211) and / or the longitudinal connector (212); the transverse connector (211) and the longitudinal connector (212) are located below the table frame (100).
3. The table leg table deck connection structure of claim 2, wherein: The transverse connector (211) is welded to the first crossbar (11); the longitudinal connector (212) is welded to the first longitudinal bar (13).
4. The table leg table deck connection structure of claim 1, wherein: The first groove (102) is formed on the end face of the hollow tube; the distance between the first groove (102) and the second groove (103) is the distance between the two long sides of the hollow tube.
5. The table leg table deck connection structure of claim 2, wherein: The table frame (100) is provided with a first through hole (104) for connecting the table legs (22); the connecting assembly (21) is provided with a second through hole (105) for connecting the table legs (22).
6. The table leg table deck connection structure of claim 1, wherein: One or more reinforcing crossbars (15) are provided between the first crossbar (11) and the second crossbar (12). One end of the reinforcing crossbar (15) is connected to the first longitudinal bar (13) by welding, and the other end of the reinforcing crossbar (15) is connected to the second longitudinal bar (14) by welding.
7. The table leg and frame connection structure according to claim 6, characterized in that: A reinforcing longitudinal bar (16) is provided between the first crossbar (11) and the reinforcing crossbar (15), and between the second crossbar (12) and the reinforcing crossbar (15). One end of the reinforcing longitudinal bar (16) is welded to the reinforcing crossbar (15), and the other end of the reinforcing longitudinal bar (16) is welded to the first crossbar (11) or the second crossbar (12).
8. The table leg table deck connection structure of claim 1, wherein: The cross-section of the hollow tube is rectangular.
9. The table leg table deck connection structure of claim 2, wherein: The number of the table legs (22) is two, one of which is connected with the transverse connecting piece (211) by screw fastening, and the other is connected with the longitudinal connecting piece (212) by screw fastening, and a right-angle connecting block (220) is arranged at the bottom inner side of the two table legs (22).