Beam column assembly structure

By setting an integrated molded assembly joint between the beams and columns, the problem of the difficulty in disassembling the beams and columns of existing shelves is solved, achieving efficient and stable beam-column connection and improving the structural strength and aesthetics of the shelves.

CN223944077UActive Publication Date: 2026-02-27SHANGHAI MARATTI FURNITURE CO LTD
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Patent Information

Application Number
CN202520513893.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-27
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

The existing shelving units are fixed to the beams and columns by welding, which makes them difficult to disassemble, takes up a lot of space and is inconvenient to move. At the same time, the beam joints made by bending sheet metal have poor integrity, insufficient screw hole depth, and insufficient locking force.

Method used

The assembly joint uses an integrated molded assembly joint to connect the crossbeam and the column through the plug and screw holes. The assembly joint is made of aluminum alloy material, which increases the mating length of the screw and the connection part. The use of U-shaped plate and groove structure facilitates installation and forms a seamless connection.

Benefits of technology

It improves the stability and integrity of the beam-column assembly structure, enhances the connection strength between the beams and columns, simplifies the assembly and disassembly process, and improves the overall aesthetics and durability of the structure.

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    Figure CN223944077U_ABST
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Abstract

The utility model discloses a beam column assembly structure which comprises a hollow cross beam and a stand column, an integrally molded assembly joint is arranged between the cross beam and the stand column, the assembly joint is provided with a solid connecting part, the connecting part is provided with a second screw hole, the cross beam is provided with a second through hole corresponding to the second screw hole, and the cross beam is sleeved on the assembly joint. The second screw penetrates into the second through hole and is locked into the second screw hole, so that the assembly joint is fixedly connected with the cross beam; according to the beam-column assembly structure, the integrally molded assembly joint is arranged between the cross beam and the stand column, so that the structural strength of the assembly joint is improved, the matching length of the screw and the assembly joint can be increased through the solid connecting part on the integrally molded assembly joint, the connecting strength of the cross beam and the assembly joint is higher, and the stability of the beam-column assembly structure is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to furniture field, especially a beam column assembly structure. BACKGROUND

[0002] The storage rack is more widely used in daily furniture, and is usually formed by fixing and connecting a plurality of horizontal beams and columns, for example, some wardrobes adopt this structure to ensure the structural stability, but the existing storage rack occupies a large space, and the plurality of horizontal beams and columns are usually connected by welding, and the horizontal beams and columns after welding cannot be disassembled, so that the storage rack is difficult to carry.

[0003] In order to solve the problem that the horizontal beam and the column in the storage rack are difficult to disassemble, the applicant previously designed the beam column connecting structure in the patent with the announcement number CN220607764, which is detachably connected by setting a horizontal beam joint between the horizontal beam and the column, wherein the horizontal beam joint is an integrally formed sheet metal part, including a side plate and upper and lower symmetrically arranged end plates connected thereto, the front end of the side plate is vertically bent to form a head end plate, the head end plate is provided with a positioning structure, the positioning structure includes a connecting hole and a positioning protrusion, after the positioning protrusion is inserted into the positioning hole on the column, the screw is locked in the threaded hole by being inserted into the connecting hole, so that the horizontal beam joint and the column are connected and fixed, a plurality of screw holes are arranged on the end plate, a through hole corresponding to the screw hole is arranged on the horizontal beam, the horizontal beam is surrounded after being sleeved on the horizontal beam joint, and the horizontal beam and the horizontal beam joint are connected and fixed by locking the screw.

[0004] The horizontal beam joint is a sheet metal part, and the end plate and the head end plate are formed by bending processing, which is difficult to produce a sufficient number of horizontal beam joints at one time, and the head end plate and the end plate after bending are separated from each other, so that the integrality of the horizontal beam joint is poor.

[0005] The two upper and lower symmetric end plates are hollow structures, which result in that the screw holes on the end plates have a small depth, so that the thread cooperation length is insufficient, and it is difficult to form sufficient locking force after the thread cooperation with the screw. SUMMARY

[0006] The utility model provides a kind of beam column assembly structure, by setting integrally molded assembly joint between horizontal beam and column, the structural strength of assembly joint is improved, and the cooperation length of screw and assembly joint can be increased by the solid connecting portion of integrally molded assembly joint, so that the connection strength of horizontal beam and assembly joint is higher, the stability of beam column assembly structure is improved.

[0007] The technical scheme of the utility model is as follows:

[0008] The beam-column assembly structure comprises a hollow beam and a column, and an integrated assembly joint is arranged between the beam and the column. A positioning structure is arranged between the head end of the assembly joint and the column. The positioning structure comprises an insertion part and a first through hole which are integrally formed on the head end of the assembly joint, an insertion hole and a first screw hole which are arranged on the side wall of the column, the insertion part corresponds to the insertion hole in position, and the first through hole corresponds to the first screw hole in position. The insertion part is inserted into the insertion hole, and the assembly joint and the column are connected and fixed by a first screw which is inserted into the first through hole and locked into the first screw hole. The assembly joint has a solid connecting part, the connecting part is provided with a second screw hole, the beam is provided with a second through hole corresponding to the second screw hole, the beam is sleeved on the assembly joint, and a second screw is inserted into the second through hole and locked into the second screw hole to connect and fix the assembly joint and the beam.

[0009] As preferred, a groove is arranged on the assembly joint and communicates with the first through hole. The first screw is inserted into the first through hole through the groove and locked into the first screw hole to connect and fix the assembly joint and the column. The groove can provide installation space, so that the first screw can be quickly aligned with the first through hole.

[0010] As preferred, the groove divides the first through hole into an avoiding hole segment and a connecting hole segment for cooperating with the first screw. The avoiding hole segment communicates with the groove and corresponds to the connecting hole segment in position. The avoiding hole segment can facilitate the screwdriver to pass through, so that the first screw in the groove is screwed and locked.

[0011] As preferred, the beam has a sleeving segment for sleeving with the assembly joint. The sleeving segment is a U-shaped plate matched with the assembly segment, and the second through hole is arranged on the U-shaped plate. The U-shaped plate structure facilitates the adjustment of the installation position, so that the second through hole is quickly aligned with the second screw hole when the second screw is arranged.

[0012] As preferred, the outer wall of the assembly joint is provided with a raised joint part. The edges of the opening of the end part of the U-shaped plate and the edges on both sides are attached to the joint part, so that the assembly joint and the U-shaped plate form a smooth integrated structure. The assembly traces of the assembly joint and the beam are shielded, so that the beam-column structure is more simple and elegant.

[0013] As preferred, the column has a plurality of side walls, and the insertion hole and the first screw hole are arranged on one of the side walls. An edge is formed between every two adjacent side walls, and the two edges facing the assembly joint are provided with a first arc-shaped surface which is rounded. The assembly joint is integrally formed with a second arc-shaped surface which is rounded. The head end of the assembly joint is attached to the corresponding side wall, and the second arc-shaped surface is closely attached to the first arc-shaped surface. The assembly joint and the column form a seamless connection.

[0014] As preferred, the assembly joint is integrally made of aluminum alloy material. The service life and structural strength of the aluminum alloy material are high, so that the whole beam-column assembly structure is more stable.

[0015] As preferred, the second screw hole is formed on the connecting part in a horizontal direction and penetrates the connecting part; the penetrated second screw hole can prolong the screw thread matching length of the second screw and the connecting part, and the two sides of the penetrated connecting part will form openings, which is convenient for locking connection between the second screw and the beam.

[0016] As preferred, the number of the second screw hole, the second through hole and the second screw is single; the single design makes the disassembly of the beam and the assembly joint more efficient.

[0017] As preferred, the tail end of the assembly joint is provided with an avoiding hole, the diameter of the avoiding hole is larger than that of the first through hole, the avoiding hole is in communication with the first through hole and in position correspondence; the avoiding hole provides installation space for the first screw, so that the first screw can pass through the avoiding hole and be inserted into the first through hole.

[0018] The beneficial effects of the utility model with the above technical scheme are:

[0019] Compared with the beam joint of the sheet metal bending structure, the utility model sets the integrally molded assembly joint between the beam and the column, improves the integrity of the whole assembly joint, and sets the second screw hole for connecting the beam on the solid connecting part of the assembly joint, so that the screw thread matching length of the second screw and the assembly joint is increased, and the stability of the beam-column assembly structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an enlarged view of the beam and the column connected through the assembly joint;

[0021] Figure 2 It is an exploded view of the beam-column assembly structure;

[0022] Figure 3 It is an exploded view of the beam-column assembly structure from another angle;

[0023] Figure 4 It is a structure view of the assembly joint;

[0024] Figure 5 It is a sectional view of the assembly joint;

[0025] Figure 6 It is a schematic view of the multiple beams and columns combined as a storage rack;

[0026] Figure 7 It is a schematic view of the assembly joint in embodiment 2;

[0027] The reference numerals for each figure are as follows: 1-Column, 2-Beam, 3-Assembly joint, 3a-Connecting part, 3s-First through hole, 4-First screw, 5-Second screw, 11-Insertion hole, 12-First screw hole, 13-First arc-shaped surface, 21-Sleeve section, 22-Second through hole, 31-Insertion part, 32-Groove, 33-Connecting hole section, 34-Second screw hole, 35-Allowing hole section, 35a-Allowing hole, 36-Joint part, 37-Second arc-shaped part. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0030] This utility model has multiple embodiments, and the specific implementation methods are as follows:

[0031] Example 1: As Figures 1-6 As shown, this embodiment provides a beam-column assembly structure, including a hollow beam 2 and a column 1. The beam 2 and column 1 are typically made of steel pipes. An integrally molded assembly joint 3 is provided between the beam 2 and the column 1. A positioning structure is provided between the head end of the assembly joint 3 and the column 1. The positioning structure includes an insertion part 31 and a first through hole 3s integrally formed on the head end of the assembly joint 3, and an insertion hole 11 and a first screw hole 12 provided on the side wall of the column 1. The insertion part 31 corresponds to the insertion hole 11, and the first through hole 3s corresponds to the first screw hole 12. The insertion part 31 is inserted into the insertion hole 11, so that the first through hole 3s... The 3s and the first screw hole 12 are quickly aligned. The assembly joint 3 and the column 1 are connected and fixed by the first screw 4, which passes through the first through hole 3s and locks into the first screw hole 12. The assembly joint 3 has a solid connecting part 3a, which is provided with a second screw hole 34. Compared with the sheet metal structure, the thickness of the connecting part 3a on the molded assembly joint 3 is greater, and the thread length of the second screw hole 34 is also longer. The crossbeam 2 is provided with a second through hole 22 corresponding to the second screw hole 34. The crossbeam 2 is fitted onto the assembly joint 3. The second screw 5 passes through the second through hole 22 and locks into the second screw hole 34, so that the assembly joint 3 and the crossbeam 2 are connected and fixed.

[0032] Further, in order to facilitate the installation of the first screw 4, a groove 32 is formed on the assembly joint 3 and communicates with the first through hole 3s, the first screw 4 passes through the groove 32 and enters the first through hole 3s and is locked in the first screw hole 12, so that the assembly joint 3 is connected and fixed with the stand column 1; the groove 32 can provide an installation space, so that the first screw 4 can be quickly locked in the first screw hole 12, and meanwhile, the groove 32 can provide a space for accommodating the first screw 4, so as to avoid the first screw 4 from being exposed on the assembly joint 3.

[0033] Further, the groove 32 divides the first through hole 3s into an avoiding hole segment 35 and a connecting hole segment 33 for cooperating with the first screw 4, the avoiding hole segment 35 communicates with the groove 32 and corresponds to the connecting hole segment 33 in position; when the first screw 4 is locked, the avoiding hole segment 35 can avoid a screwdriver, so that the first screw 4 in the groove 32 is locked by rotating the knob.

[0034] Further, in order to facilitate assembly, the cross beam 2 has a sleeving segment 21 for sleeving with the assembly joint 3, the sleeving segment 21 is a U-shaped plate matched with the assembly segment, and the second through hole 22 is arranged on the U-shaped plate; compared with a closed tubular structure, one side of the U-shaped plate structure is open outward, so that even if there is a slight deviation in the hole position, the installation position can be adjusted, so that when the second screw 5 is arranged, the second through hole 22 is quickly aligned with the second screw hole 34.

[0035] Further, in order to make the appearance of the combination of the cross beam 2 and the assembly joint 4 more simple and the integration degree higher, a raised joint 36 is arranged on the outer wall of the assembly joint 3, in the embodiment, the joint 36 includes two L-shaped protrusions integrally formed on two opposite side walls of the assembly joint 3, and the two L-shaped protrusions are connected by a linear protrusion integrally formed on the adjacent side wall, so as to adapt to the structure of the U-shaped plate; the edges of the open ends of the U-shaped plate and the edges on both sides are attached to the joint 36, so that the assembly joint 3 and the U-shaped plate form a smooth integrated structure, the assembly traces of the assembly joint 3 and the cross beam 2 are shielded, and the beam column structure is more simple and generous.

[0036] Further, the stand column 1 is a common steel pipe structure, and the common steel pipe structure usually has a rounded arc surface, specifically, the stand column 1 has a plurality of side walls, the insertion hole 11 and the first screw hole 12 are arranged on one of the side walls; a ridge is formed between every two adjacent side walls, and the two ridges facing the assembly joint 3 each have a rounded first arc surface 13, the first arc surface 13 will form a gap between the assembly joint 3 and the stand column 1, therefore, in order to make the connection between the assembly joint 3 and the stand column 1 more compact, a rounded second arc surface 37 is integrally formed on the assembly joint 3, the head end of the assembly joint 3 is attached to the corresponding side wall, and the second arc surface 37 is tightly attached to the first arc surface 13; so that the assembly joint 3 and the stand column 1 form a seamless connection.

[0037] Furthermore, to ensure the strength and stability of the beam-column assembly structure, the assembly joint 3 is made of aluminum alloy through die casting. The aluminum alloy material has a high service life and structural strength, making the entire beam-column assembly structure more robust and durable.

[0038] Furthermore, to maximize the stability and connection strength between the crossbeam 2 and the assembly joint 3, a second screw hole 34 is horizontally formed on the connecting part 3a and passes through it. The through second screw hole 34 extends the threaded engagement length between the second screw 5 and the connecting part 3a. At the same time, openings are formed on both sides of the through connecting part 3a, which facilitates the locking connection between the second screw 5 and the crossbeam 2. Specifically, the U-shaped plate on the crossbeam 2 has two side plates facing the connecting part 3a. The second through hole 22 can be formed on either side plate to ensure that the second through hole 22 is aligned with the second screw hole 34, avoiding the connection effect caused by the drilling position deviation, and making the connection process between the crossbeam 2 and the assembly joint 3 simpler and more efficient.

[0039] Furthermore, to facilitate the quick assembly and disassembly of the crossbeam 2 and the assembly joint 3, the number of the second screw hole 34, the second through hole 22, and the second screw 5 are all single; the single design saves the operator time in tightening or loosening the second screw 5, making the assembly and disassembly of the crossbeam 2 and the assembly joint 3 more efficient.

[0040] Example 2: As Figure 7 As shown, this embodiment differs from the above embodiment in that, in this embodiment, the groove 32 is not provided. Instead, a clearance hole 35a is directly provided at the tail end of the assembly connector 3. The diameter of the clearance hole 35a is larger than the diameter of the first through hole 3s. The clearance hole 35a is connected to the first through hole 3s and their positions correspond. The clearance hole 35a provides installation space for the first screw 4, allowing the first screw 4 to pass through the clearance hole 35a and be inserted into the first through hole 3s. The stepped surface at the junction of the clearance hole 35a and the first through hole 3s can also abut against the nut of the first screw 4. Afterward, the screwdriver can also be inserted into the clearance hole 35a and tighten the first screw 4, achieving the same installation effect as the above embodiment.

[0041] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A beam column assembly structure, characterized by, The utility model provides a hollow crossbeam (2) and stand (1), is equipped with the integrated moulding assembly joint (3) between crossbeam (2) and stand (1), is equipped with positioning structure between the head end of assembly joint (3) and stand (1), and positioning structure includes the plug -in part (31) and first through -hole (3s) of integrally forming on the head end of assembly joint (3), the plug -in hole (11) and first screw hole (12) of setting on the lateral wall of stand (1), plug -in part (31) with plug -in hole (11) position corresponds, and first through -hole (3s) with first screw hole (12) position corresponds, plug -in part (31) inserts plug -in hole (11), and assembly joint (3) is connected and fixed between stand (1) through first screw (4) of passing into first through -hole (3s) and locking into first screw hole (12), assembly joint (3) has solid connecting portion (3a) on it, and connecting portion (3a) is equipped with second screw hole (34), and crossbeam (2) is equipped with second through -hole (22) corresponding with second screw hole (34), and crossbeam (2) is sleeved on assembly joint (3), and second screw (5) passes into second through -hole (22) and locks into second screw hole (34), makes assembly joint (3) with crossbeam (2) connect and fix.

2. The beam-column assembly structure of claim 1, wherein: Groove (32) is set up on assembly joint (3) and communicates with first through -hole (3s), and first screw (4) passes into first through -hole (3s) and locks into first screw hole (12) via groove (32), makes assembly joint (3) with stand (1) connect and fix.

3. The beam-column assembly structure of claim 2, wherein: Groove (32) divides first through -hole (3s) into avoiding hole section (35) and connecting hole section (33) for cooperating with first screw (4), and avoiding hole section (35) communicates with groove (32) and corresponds with connecting hole section (33) in position.

4. The beam-column assembly structure of claim 1, wherein: Crossbeam (2) has sleeve joint section (21) for being sleeved with assembly joint (3), and sleeve joint section (21) is a U-shaped plate matched with assembly section, and second through -hole (22) is arranged on the U-shaped plate.

5. The beam-column assembly structure of claim 4, wherein: The outer wall of assembly joint (3) is equipped with the protruding joint (36), and the edge of the opening of the end of the U-shaped plate and the edge of both sides are attached to the joint (36), so that the assembly joint (3) and the U-shaped plate form a smooth integrated structure.

6. The beam-column assembly structure of claim 1, wherein: The stand (1) has a plurality of side walls, the plug-in hole (11) and the first screw hole (12) are arranged on one of the side walls; two adjacent side walls form an edge, and the two edges facing the assembly joint (3) have a first arc surface (13); the assembly joint (3) integrally forms a second arc surface (37), the head end of the assembly joint (3) is tightly attached to the corresponding side wall, and the second arc surface (37) is tightly attached to the first arc surface (13).

7. The beam-column assembly structure of claim 1, wherein: The assembly joint (3) is integrally formed by aluminum alloy material.

8. The beam-column assembly structure of claim 1, wherein: The second screw hole (34) is arranged on the connecting portion (3a) in the horizontal direction and penetrates the connecting portion (3a).

9. The beam-column assembly structure of claim 1, wherein: The number of the second screw hole (34), the second through -hole (22) and the second screw (5) is single.

10. The beam-column assembly structure of claim 1, wherein: The tail end of the assembled joint (3) is provided with an avoiding hole (35a) having a diameter larger than that of the first through hole (3s), the avoiding hole (35a) communicates with the first through hole (3s) and is in position correspondence.