Connection structure between thin-walled closed-section column and bracket, and shelf

Abstract

A connection structure between a thin-walled closed-section column and a bracket, and a shelf. The connection structure comprises a thin-walled closed-section column (1), a bracket (2), and connecting members (3). Connecting holes (11) and clearance holes (12) are formed in the side wall of the thin-walled closed-section column (1). The connecting members (3) can enter the interior of the thin-walled closed-section column (1) through the clearance holes (12) and pass through the connecting holes (11) to be connected to the bracket (2).

Description

Connection structure between thin-walled closed uprights and brackets and shelving

[0001] This application claims priority to Chinese Patent Application No. 202422618105.5, filed with the Chinese Patent Office on October 29, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of warehouse racking technology, for example to a connection structure between a thin-walled closed column and a bracket, and a rack. Background Technology

[0003] Because closed-wall uprights are enclosed on all four sides, through holes are typically made in the uprights, and bolts are used to connect them to the brackets through the entire upright. However, when the wall thickness of the closed-wall upright is small, deformation can easily occur during bolt tightening, making it impossible to tighten the bolts. Therefore, in related technologies, the connection method between thin-walled closed-wall uprights and brackets is usually welding. However, when assembling the racking, welding of the thin-walled closed-wall uprights and brackets needs to be performed on-site in the warehouse, which has the disadvantages of high construction difficulty and long cycle time. Moreover, welding can easily cause deformation of the uprights and brackets, affecting the quality of the racking. Summary of the Invention

[0004] This application provides a connection structure for thin-walled closed uprights and brackets, as well as a shelf, which facilitates the assembly of thin-walled closed uprights and brackets, prevents deformation of the thin-walled closed uprights, ensures a tight connection between the brackets and the thin-walled closed uprights, and guarantees the quality of the shelf.

[0005] This application provides a connection structure between a thin-walled closed column and a bracket, including a thin-walled closed column, a bracket, and a connector. The thin-walled closed column has a connection hole and a clearance hole on its side wall. The connector can enter the interior of the thin-walled closed column through the clearance hole and connect to the bracket through the connection hole.

[0006] In one embodiment, the connector includes a connecting bolt and a connecting nut.

[0007] In one embodiment, the diameter of the clearance hole is larger than the diameter of the connection hole.

[0008] In one embodiment, the wall thickness of the thin-walled closed column is no more than 6 mm.

[0009] In one embodiment, the thin-walled closed column has multiple connecting holes on its side wall, and the clearance holes are provided one-to-one with the multiple connecting holes.

[0010] In one embodiment, each of the clearance holes is positioned directly opposite the corresponding connection hole.

[0011] In one embodiment, the thin-walled closed column is provided with a plurality of connecting holes spaced apart in the vertical direction, and the bracket can be installed in any of the connecting holes.

[0012] In one embodiment, the cow leg includes a first U-shaped member and a second U-shaped member, the first U-shaped member and the second U-shaped member having opposite opening directions and being connected in a cross shape, the first U-shaped member being configured to connect with the thin-walled closed column, and the second U-shaped member being configured to bear weight.

[0013] In one embodiment, the length of the second U-shaped member is greater than the length of the first U-shaped member; or,

[0014] The first U-shaped component and the second U-shaped component are connected by welding; or,

[0015] The length of the second U-shaped component is greater than the length of the first U-shaped component, and the first U-shaped component and the second U-shaped component are welded together.

[0016] This application provides a shelf, including a load-bearing beam and a connection structure between thin-walled closed uprights and brackets as described above. A plurality of thin-walled closed uprights are erected at intervals and are all connected to the ground. The brackets are configured to support the load-bearing beams. Attached Figure Description

[0017] Figure 1 is a front view of the connection structure between the thin-walled closed column and the corbel in this application;

[0018] Figure 2 is a top view of the connection structure between the thin-walled closed column and the corbel in this application;

[0019] Figure 3 is a side view of the connection structure between the thin-walled closed column and the corbel in this application;

[0020] Figure 4 is a front view of the thin-walled closed column of this application;

[0021] Figure 5 is a top view of the thin-walled closed column of this application.

[0022] In the diagram: 100, load-bearing beam; 200, installation tool; 1, thin-walled closed column; 11, connecting hole; 12, clearance hole; 2, bracket; 21, first U-shaped piece; 22, second U-shaped piece; 3, connector; 31, connecting bolt; 32, connecting nut. Detailed Implementation

[0023] The present application will now be described in conjunction with the accompanying drawings and embodiments. The embodiments described herein are merely illustrative and not intended to limit the scope of the application. For ease of description, only the parts relevant to the present application are shown in the drawings, not the entire structure.

[0024] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the meaning of the above terms in this application according to the circumstances.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0026] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this application. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0027] As shown in Figures 1 to 5, when the thin-walled closed column 1 is connected to the bracket 2, if the connecting piece 3 penetrates the entire thin-walled closed column 1, the locking process will generate opposing compressive forces on the two opposite side walls of the thin-walled closed column 1, causing the thin-walled closed column 1 to deform and the two opposite side walls to tend to move closer to each other. The connecting piece 3 and the bracket 2 can never reach a locked state, resulting in an unstable connection between the bracket 2 and the thin-walled closed column 1, which poses a safety hazard. To address the aforementioned issues, this embodiment provides a connection structure between a thin-walled closed column and a bracket, comprising a thin-walled closed column 1, a bracket 2, and a connector 3. The thin-walled closed column 1 has a connection hole 11 and a clearance hole 12 on its side wall. The connector 3 can enter the interior of the thin-walled closed column 1 through the clearance hole 12 and connect to the bracket 2 through the connection hole 11, ensuring that the bracket 2 is only connected to one side wall of the thin-walled closed column 1. The connector 3 can lock the thin-walled closed column 1 and the bracket 2 together, improving the connection stability between them and preventing deformation of the thin-walled closed column 1 due to compression. Compared to welding, this connection method not only offers advantages such as ease of assembly and disassembly, high flexibility, and low requirements for the working environment, but also prevents deformation of the thin-walled closed column 1 and bracket 2 during welding, thus improving the quality of the shelving.

[0028] The thin-walled closed column 1 is a column with a wall thickness of no more than 6 mm and is closed circumferentially. It has high structural strength, saves materials, and has low production cost. In this embodiment, the thin-walled closed column 1 is formed by four side walls. It has a regular shape and flat side walls, which facilitates connection with the bracket 2. The thin-walled closed column 1 is closed on all four sides. Compared with the open column, the thin-walled closed column 1 of this embodiment has better torsional and bending resistance, and its overall load-bearing capacity is stronger. Compared with the thick-walled closed column, the production of the thin-walled closed column 1 of this embodiment requires less raw materials, which has the advantages of low production cost and light weight, saving costs and facilitating transportation.

[0029] The connector 3 includes a connecting bolt 31 and a connecting nut 32. The connecting bolt 31 is inserted into the interior of the thin-walled closed column 1 through the clearance hole 12, and then passes through the connecting hole 11 and the bracket 2 in sequence to connect and lock with the connecting nut 32 by thread. The connecting nut 32 is located on the outside of the thin-walled closed column 1, which facilitates the tightening operation. In other embodiments, the connector 3 may be, but is not limited to, using pins or tenons, etc., which are not limited here.

[0030] Alternatively, the operator can place the connecting bolt 31 on the outside of the thin-walled closed column 1, pass it through the bracket 2 and the thin-walled closed column 1 in sequence, and send the connecting nut 32 into the interior of the thin-walled closed column 1 through the clearance hole 12 and thread it with the connecting bolt 31.

[0031] As shown in Figure 3, in this embodiment, the operator can use the installation tool 200 to clamp the connecting bolt 31 or the connecting nut 32, so as to insert it into the interior of the thin-walled closed column 1 through the clearance hole 12. The installation tool 200 may be equipped with a magnetic component, which can magnetically attract the connecting bolt 31. In other embodiments, the installation tool 200 may also be equipped with grippers to clamp the connecting bolt 31; this is not limited here.

[0032] As shown in Figures 4 and 5, the diameter of the clearance hole 12 is larger than the diameter of the connecting hole 11, providing clearance space for the installation tool 200 to clamp the connecting bolt 31 through the clearance hole 12 and enter the interior of the thin-walled closed column 1, so as to facilitate operation.

[0033] Multiple connection holes 11 are provided on the side wall of the thin-walled closed column 1, so that there are multiple connection points between the bracket 2 and the thin-walled closed column 1. The connection strength between the bracket 2 and the thin-walled closed column 1 is greater and the stability is higher. The clearance holes 12 are set one-to-one with the multiple connection holes 11, so that the connector 3 can reach the vicinity of the corresponding connection hole 11 through each clearance hole 12, preventing the operation difficulty from being increased due to the large distance between the clearance hole 12 and the connection hole 11.

[0034] In this embodiment, each clearance hole 12 is set directly opposite the corresponding connection hole 11. After the operator uses the installation tool 200 to insert the connection bolt 31 into the thin-walled closed column 1, no alignment is required. The connection bolt 31 can be directly inserted into the connection hole 11, which helps to improve the convenience of operation and production efficiency.

[0035] In some embodiments, the thin-walled closed column 1 is provided with a plurality of connection holes 11 spaced apart in the vertical direction. The bracket 2 can be selectively installed in any of the connection holes 11. Combined with the characteristics of the connecting nut 32 and the connecting bolt 31, which are easy to disassemble and assemble, the height of the bracket 2 can be easily adjusted, thereby improving the utilization rate of the bracket 2 and the thin-walled closed column 1 and the versatility of the shelf.

[0036] As shown in Figures 1 to 3, the bracket 2 includes a first U-shaped member 21 and a second U-shaped member 22. The opening directions of the first U-shaped member 21 and the second U-shaped member 22 are opposite and they are connected in a cross shape. The first U-shaped member 21 is configured to connect with the thin-walled closed column 1. The U-shaped opening of the first U-shaped member 21 can be engaged with the thin-walled closed column 1, which helps to position the bracket 2 and the thin-walled closed column 1 and improves the connection strength. The second U-shaped member 22 is configured to bear the load. The U-shaped structure has better torsional and bending resistance, which helps to improve the load-bearing capacity of the bracket 2.

[0037] To facilitate load-bearing, in some embodiments, the length of the second U-shaped member 22 is greater than the length of the first U-shaped member 21, so that the second U-shaped member 22 has a larger load-bearing area, which facilitates connection with the load-bearing beam 100 or the pallet.

[0038] The first U-shaped part 21 and the second U-shaped part 22 are welded together, which has high connection strength and a smooth surface, avoiding interference between bolts and other connecting parts and the thin-walled closed column 1.

[0039] This embodiment also provides a shelving unit, including load-bearing beams 100 and the connection structure between thin-walled closed uprights and brackets as described in any of the above embodiments. Multiple thin-walled closed uprights 1 are erected at intervals and all connected to the ground. Brackets 2 are configured to support the load-bearing beams 100. Multiple load-bearing beams 100 are connected to corresponding thin-walled closed uprights 1 via brackets 2 to form a shelving unit, on which goods can be supported. By applying the above-described connection structure between thin-walled closed uprights and brackets, the shelving unit can be easily assembled, has high stability, and possesses better load-bearing capacity.

[0040] Similarly, the load-bearing beam 100 has a U-shaped structure, which has better torsional and bending resistance and higher load-bearing capacity. In this embodiment, the load-bearing beam 100 is connected to the second U-shaped member 22 by bolts, which is stable and easy to assemble and disassemble.

[0041] Optionally, the connection between the second U-shaped member 22 and the load-bearing beam 100 may include, but is not limited to, snap-fit ​​or plug-in connections, which are not specified here.

Claims

1. A connection structure between a thin-walled closed column and a corbel, comprising a thin-walled closed column (1), a corbel (2) and a connector (3), wherein the thin-walled closed column (1) has a connection hole (11) and a clearance hole (12) on its side wall; the connector (3) can enter the interior of the thin-walled closed column (1) through the clearance hole (12) and connect to the corbel (2) through the connection hole (11).

2. The connection structure between the thin-walled closed column and the corbel according to claim 1, wherein, The connector (3) includes a connecting bolt (31) and a connecting nut (32).

3. The connection structure between the thin-walled closed column and the corbel according to claim 2, wherein, The diameter of the clearance hole (12) is larger than the diameter of the connecting hole (11).

4. The connection structure between the thin-walled closed column and the corbel according to claim 1, wherein, The wall thickness of the thin-walled closed column (1) is no more than 6 mm.

5. The connection structure between the thin-walled closed column and the corbel according to claim 1, wherein, The thin-walled closed column (1) has multiple connecting holes (11) on its side wall, and the clearance hole (12) is provided in a one-to-one correspondence with the multiple connecting holes (11).

6. The connection structure between the thin-walled closed column and the corbel according to claim 5, wherein, Each of the clearance holes (12) is provided directly opposite the corresponding connection hole (11).

7. The connection structure between the thin-walled closed column and the corbel according to claim 1, wherein, The thin-walled closed column (1) has multiple connecting holes (11) spaced apart in the vertical direction, and the bracket (2) can be installed in any of the connecting holes (11).

8. The connection structure between the thin-walled closed column and the corbel according to any one of claims 1 to 7, wherein, The cow leg (2) includes a first U-shaped part (21) and a second U-shaped part (22). The opening directions of the first U-shaped part (21) and the second U-shaped part (22) are opposite and are connected in a cross shape. The first U-shaped part (21) is configured to be connected to the thin-walled closed column (1), and the second U-shaped part (22) is configured to bear the load.

9. The connection structure between the thin-walled closed column and the corbel according to claim 8, wherein, The length of the second U-shaped member (22) is greater than the length of the first U-shaped member (21); or, The first U-shaped component (21) and the second U-shaped component (22) are connected by welding; or, The length of the second U-shaped part (22) is greater than the length of the first U-shaped part (21), and the first U-shaped part (21) and the second U-shaped part (22) are welded together.

10. A shelving unit comprising a load-bearing beam (100) and a connection structure between thin-walled closed uprights and brackets as described in any one of claims 1 to 9, wherein a plurality of thin-walled closed uprights (1) are erected at intervals and all are connected to the ground, and the brackets (2) are configured to support the load-bearing beam (100).

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