Connecting structure of crossbeam and stand column and table using the same

Abstract

The utility model discloses a kind of connecting structure of crossbeam and stand and desk using the structure, belong to furniture technical field.The connecting structure includes: a first connecting piece connected on stand, it has top support surface and first installation inclined plane;A hollow crossbeam, its lateral wall has opening, the top of the crossbeam is supported by the top support surface;A second connecting piece, it is fixed in crossbeam inside via the opening, and has second installation inclined plane matched with first installation inclined plane.The utility model separates by rigid support in vertical direction and inclined plane tensioning function in horizontal direction, solves the defects of indirect support, stress concentration in prior art, constitutes the double stable structure of outer support inner pull type, greatly improves connection strength, bearing capacity and reliability of long-term use.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a connection structure between a beam and a column, and a table using this structure, especially a height-adjustable table. Background Technology

[0002] For desks, especially height-adjustable desks, the stability and structural strength of the desk frame are key factors determining product quality. Desk frames are typically constructed from uprights and crossbeams; therefore, the connection structure between the uprights and crossbeams plays a crucial role in the overall stability of the desk frame.

[0003] To address the issue of assembly gaps between components, existing technology discloses a beam connection structure utilizing the principle of inclined planes. This structure, at the connection between the column and the beam, uses connectors with mating mounting inclined planes to convert the fastener's locking force into a lateral tensile force between the components, thereby eliminating assembly gaps. However, in this type of structure, the vertical load of the beam often needs to be supported by the same pair of inclined planes, which is an indirect support method. The force transmission path is not optimal, and after long-term load-bearing, the stability and deformation resistance of the connection point still have room for improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure between a beam and a column and a table using this structure, so as to solve the technical problem that the existing connection structure provides indirect support for the vertical support of the beam, and the force transmission path is not optimal, resulting in insufficient long-term stability and deformation resistance of the connection point.

[0005] To achieve the above objectives, the connection structure between the beam and the column provided by this utility model includes:

[0006] Columns;

[0007] The first connector is attached to the column and has a first mounting ramp and a top support surface;

[0008] A hollow beam has an opening in its side wall, and the top of the beam is supported by the top support surface of the first connector; and

[0009] A second connector is placed inside the crossbeam and fixed via the opening, the second connector having a second mounting ramp that mates with the first mounting ramp;

[0010] The first and second mounting ramps are locked together by fasteners to tighten the column and the beam in the horizontal direction.

[0011] Preferably, the second connector includes an inclined middle portion and two ends extending in opposite directions from the upper and lower ends of the middle portion, the middle portion forming the second mounting slope, and the two ends being connected to the upper and lower inner walls of the crossbeam respectively.

[0012] Preferably, the two ends are welded to the upper and lower inner walls of the crossbeam.

[0013] Preferably, the first connector has a plug-in part, and the column is provided with a plug-in hole, and the plug-in part is plugged into the plug-in hole and fixedly connected.

[0014] Preferably, the first connector includes two first plates, one side of which is connected by a second plate, and the other side of each of the two first plates is provided with a plug-in portion, and the second plate constitutes the first mounting slope.

[0015] Preferably, the tops of the two first plates are in the same plane and together form the top support surface.

[0016] The table provided by this utility model includes:

[0017] desktop;

[0018] At least two uprights are needed to support the desktop;

[0019] At least one crossbeam; and

[0020] The aforementioned connection structure is used to connect the crossbeam and the column.

[0021] Preferably, the table also includes a suspension assembly located below the tabletop, the suspension assembly including a slide rail mounted on one or more crossbeams and a slidable suspension member mounted on the slide rail, the suspension member being used to suspend and organize cable harnesses.

[0022] Preferably, the suspension includes a slider that is slidably disposed on the slide rail and an adjustable limiting rod disposed on the slider, the limiting rod being used to lock or unlock with the slide rail by adjustment.

[0023] Preferably, the table has four columns, all of which have a height-adjustable top. There are four crossbeams that connect the four columns in sequence. The table also includes two motors, one of which is used to simultaneously drive the tops of two columns to rise and fall, and the other motor is used to simultaneously drive the tops of the other two columns to rise and fall.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] By adding an independent top support surface to the first connector, a direct and rigid vertical support path is provided for the crossbeam. This means that the main vertical load from the desktop is directly borne by this support surface, no longer relying on the indirect support of the ramp. Meanwhile, the internally and externally mating mounting ramps are dedicated to generating horizontal tension, completely eliminating any gaps between the column and the crossbeam. This design ensures that the forces at the connection point in both vertical and horizontal dimensions are handled by an optimized structure, resulting in overall structural strength, fatigue resistance, and long-term reliability far exceeding existing technologies. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the connection structure between the beam and the column in one embodiment of the present invention;

[0027] Figure 2 This is an exploded view of the connection structure between the beam and the column in one embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the table structure in one embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the combination of the mounting plate, slide rail and suspension component in one embodiment of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 10, desktop; 20, column; 21, insertion hole; 30, crossbeam; 31, opening; 311, sloping side; 40, mounting plate; 50, first connector; 51, first mounting slope; 52, first plate; 521, insertion part; 522, top support surface; 60, second connector; 61, second mounting slope; 62, end; 70, slide rail; 71, slide track; 80, suspension component; 81, slider; 811, embedded part; 812, rod part; 813, flange part; 82, limit rod; 83, knob; 90, motor; 91, drive rod. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] Please see Figure 1 and Figure 2In this embodiment, the connection structure between the beam and the column mainly includes the column 20, the first connector 50 fixed on the column 20, the hollow beam 30, and the second connector 60 fixed inside the beam 30.

[0033] like Figure 2 As shown, the column 20 has multiple insertion holes 21 for installation.

[0034] The first connector 50 is used to connect to the column 20. Its specific structure can consist of two parallel first plates 52 and a second plate connected to one side of the two first plates 52. The outer surface of the second plate is the first mounting slope 51. Each first plate 52 has a plug-in portion 521 on its other side, which mates with the plug-in hole 21 on the column 20 to achieve quick plug-in fixing of the first connector 50 to the column 20, preferably through welding or other methods to achieve the final fixed connection. The tops of the two first plates 52 together form a flat top support surface 522.

[0035] The crossbeam 30 is a hollow tubular structure with an opening 31 on its side wall. This opening 31 serves as a channel for the second connector 60 to be inserted into the crossbeam 30 during manufacturing, and also as a working opening for operators or tools to reach in and perform locking operations during final assembly. Preferably, the opening 31 has a sloping side 311 that is flush with the second mounting ramp 61 described later.

[0036] The second connector 60 is placed inside the crossbeam 30 through the opening 31 and pre-fixed by welding or other methods. The second connector 60 has a second mounting slope 61 that mates with the first mounting slope 51. In this embodiment, the second connector 60 can be a Z-shaped structure, including an inclined middle portion and two end portions 62 extending in opposite directions from the upper and lower ends of the middle portion. The inclined middle portion forms the second mounting slope 61, while the two end portions 62 support and connect to the upper and lower inner walls of the crossbeam 30, respectively.

[0037] During assembly, the first connector 50 is first fixed to the column 20. Then, the crossbeam 30, with the second connector 60 already fixed inside, is aligned with the end opening of the first connector 50 already mounted on the column 20, and the crossbeam 30 is fitted onto the first connector 50. During this process, the top inner wall of the crossbeam 30 slides down and rests on the top support surface 522 of the first connector 50, forming a stable vertical support. At this time, the second mounting slope 61 of the second connector 60 located inside the crossbeam 30 is tightly fitted with the first mounting slope 51 of the first connector 50. Finally, the operator's hand or tools can be inserted into the crossbeam 30 through the opening 31 to conveniently use fasteners to pass through and lock the first mounting slope 51 and the second mounting slope 61, thereby tightening the column 20 and the crossbeam 30 in the horizontal direction and eliminating gaps.

[0038] Please see Figure 3 In one embodiment of this utility model, the table is a height-adjustable table that utilizes the aforementioned connection structure. It mainly includes a tabletop 10 and a table frame for supporting the tabletop 10.

[0039] In this embodiment, the table frame is preferably a four-column, dual-motor lifting structure to provide excellent stability and load-bearing capacity. Specifically, the table frame includes four corner columns 20 with a liftable top, and four crossbeams 30 that connect these four columns 20 sequentially to form a rectangular frame. The crossbeams 30 and the columns 20 are connected by the aforementioned... Figure 1 and Figure 2 The connecting structure shown is used to fix the table, forming a high-strength and stable table frame.

[0040] To achieve smooth lifting, the table frame is equipped with a dual-motor drive system. A motor 90 is symmetrically positioned on the inner side of each of the two short sides of the rectangular frame enclosed by the crossbeam 30. The output shaft of each motor 90 is connected to a laterally extending drive rod 91. The two ends of the drive rod 91 are respectively connected to lifting screws (not shown) inside the two uprights 20 on the same side via a transmission mechanism (e.g., a bevel gear set, not shown) at the corner of the table frame.

[0041] When the lifting command is issued, the controller synchronously starts two motors 90. One motor 90 distributes power synchronously to the two columns 20 on the same side via its drive rod 91, while the other motor 90 synchronously drives the two columns 20 on the other side. Thus, the four columns 20 can achieve precise, smooth, and consistent lifting movements, thereby driving the tabletop 10 to rise and fall.

[0042] Please see Figure 3 , Figure 4In this embodiment, the table also includes a suspension assembly. This suspension assembly is fixed to the underside of the crossbeam 30 via a mounting plate 40. A slide rail 70 is fixed to the mounting plate 40, and a slide track 71 is formed inside the slide rail 70.

[0043] Multiple suspension components 80 are slidably mounted on the slide rail 70. Each suspension component 80 includes a slider 81. One end of the slider 81 is an insert 811 that can be embedded in the slide rail 71, the middle part is a drooping rod 812, and the other end is integrally formed or connected to a disc-shaped flange 813. The flange 813 serves two purposes: firstly, it acts as a baffle to effectively prevent suspended items from accidentally slipping off the rod 812; secondly, the outer periphery of the flange 813 is provided with a threaded structure.

[0044] To fix the suspension component 80 at any position on the slide rail 70, the suspension component 80 also includes a knob 83 and a limiting rod 82 fixedly connected to the knob 83. The limiting rod 82 passes through the flange portion 813, the rod body portion 812, and the embedded portion 811. The knob 83 is rotatably screwed onto the flange portion 813 via a thread.

[0045] When the user needs to lock the device, knob 83 can be rotated. The threaded engagement between knob 83 and flange 813 causes axial movement of knob 83 and the limiting rod 82 fixed thereto. When the limiting rod 82 extends out of the insert 811, its end strongly abuts against the inner wall of slide rail 71, thereby securing the entire suspension 80 to slide rail 70 through friction. Rotating knob 83 in the opposite direction retracts the limiting rod 82, unlocking the device, at which point the suspension 80 can slide freely along slide rail 70.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connection structure between a beam and a column, characterized in that, include: Columns (20); A first connector (50) is attached to the column (20) and has a first mounting ramp (51) and a top support surface (522); A hollow crossbeam (30) has an opening (31) on its side wall, and the top of the crossbeam (30) is supported by the top support surface (522) of the first connector (50). as well as A second connector (60) is placed in and fixed within the crossbeam (30) via the opening (31), the second connector (60) having a second mounting ramp (61) that mates with the first mounting ramp (51); The first mounting ramp (51) and the second mounting ramp (61) are locked together by fasteners to tighten the column (20) and the beam (30) in the horizontal direction.

2. The connection structure according to claim 1, characterized in that, The second connector (60) includes an inclined middle portion and two end portions (62) extending in opposite directions from the upper and lower ends of the middle portion, respectively. The middle portion forms the second mounting slope (61), and the two end portions (62) are respectively connected to the upper and lower inner walls of the crossbeam (30).

3. The connection structure according to claim 2, characterized in that, The two ends (62) are connected to the upper and lower inner walls of the crossbeam (30) by welding.

4. The connection structure according to claim 1, characterized in that, The first connector (50) has a plug-in part (521), and the column (20) is provided with a plug-in hole (21). The plug-in part (521) is plugged into the plug-in hole (21) and fixedly connected.

5. The connection structure according to claim 4, characterized in that, The first connector (50) includes two first plates (52), one side of the two first plates (52) is connected by a second plate, and the other side of the two first plates (52) is provided with a plug-in part (521). The second plate constitutes the first mounting slope (51).

6. The connection structure according to claim 5, characterized in that, The tops of the two first plates (52) are in the same plane and together form the top support surface (522).

7. A table, characterized in that, include: Desktop (10); At least two uprights (20) are used to support the tabletop (10); At least one crossbeam (30); as well as The connection structure according to any one of claims 1 to 6 is used to connect the crossbeam (30) and the column (20).

8. The table according to claim 7, characterized in that, It also includes a suspension assembly located below the desktop (10), which includes a slide rail (70) mounted on one or more crossbeams (30) and a slidable suspension member (80) mounted on the slide rail (70), the suspension member (80) being used to suspend and organize the cable harness.

9. The table according to claim 8, characterized in that, The suspension member (80) includes a slider (81) slidably disposed on the slide rail (70) and an adjustable limiting rod (82) disposed on the slider (81), the limiting rod (82) being used to lock or unlock with the slide rail (70) by adjustment.

10. The table according to claim 7, characterized in that, The table has four columns (20), each with a height-adjustable top. There are four crossbeams (30) that connect the four columns (20) in sequence. The table also includes two motors (90), one of which is used to simultaneously drive the tops of two columns (20) to rise and fall, and the other motor (90) is used to simultaneously drive the tops of the other two columns (20) to rise and fall.

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