Commodity shelf system

Abstract

The utility model provides a commodity shelf system which comprises a stand column, a cross beam assembled on the stand column and a partition plate located on the cross beam, the stand column is of a cavity structure, and the cross section, in the direction of the cross beam, of the cavity structure forms at least two layers of loop structures; the cross beam comprises a closed cavity used for bearing the partition plate and a baffle extending in the height direction of the stand column along the closed cavity, the stand column is provided with a plurality of assembling parts in the height direction, and assembling ends matched with the assembling parts are formed at the end of the closed cavity and / or the baffle. According to the utility model, the strength and the bearing capacity of the whole structure are improved by utilizing the cross beam formed by the closed cavity and the upright post of the cavity.

Description

Technical Field

[0001] This utility model relates to the technical field of storage racks, and more particularly to storage rack systems. Background Technology

[0002] With economic development, efficient storage has become a widespread demand. Shelving units, as essential equipment in homes, offices, and shops, meet the needs for large-capacity and high-quality storage in various environments due to their high load-bearing capacity, structural stability, and durability. Existing shelving units typically consist of beams, uprights, and shelves; the connection strength of the beams and uprights directly affects the load-bearing capacity and stability of the shelving unit.

[0003] Currently, most common shelving units on the market use a semi-enclosed beam and upright connection structure. This design is simple and low-cost, but it has the following problems in actual use:

[0004] Specific issues include:

[0005] 1. Insufficient load-bearing capacity of the crossbeam: The limited connection area of ​​the semi-enclosed design makes it prone to cracking or bending deformation during long-term use due to localized stress concentration. Localized stress concentration leads to structural failure, making it susceptible to bending or breakage.

[0006] 2. Poor stability of the beam structure: The reduced load-bearing surface and insufficient rigidity of the semi-enclosed triangular shape make the overall structure prone to swaying and tilting under load. Unreasonable force distribution: Under heavy loads, the semi-triangular structure concentrates the force along a single axis, leading to structural instability.

[0007] 3. Poor column stability: The open cross-section limits bending stiffness and lateral stiffness, making it prone to warping or deformation under load. The open cross-section leads to poor structural stability, and areas of concentrated stress are prone to deformation or cracking. The open design limits the load-bearing capacity of the column (warping phenomenon), which is especially pronounced under high loads.

[0008] 4. The overall structure is not tightly connected: Traditional connection methods are prone to loosening or structural instability under high load conditions.

[0009] 5. Limited load-bearing capacity: Traditional semi-enclosed beam structures have a load-bearing capacity of approximately 50-100kg, which is insufficient to meet the demands of heavy loads; short fatigue life: columns without optimized design are prone to fatigue cracks under cyclic loading, reducing service life; uneven stress distribution: the triangular structure and open columns lead to stress concentration, making overall instability likely; small contact area: the unconnected design inside the columns results in insufficient effective stress area, making deformation or instability likely; insufficient compressive and shear resistance: the semi-enclosed design has a single stress path, and shear force cannot be effectively transferred, making local stress points prone to failure. Utility Model Content

[0010] The purpose of this utility model is to provide a shelving system that utilizes a beam formed by a closed cavity and uprights with a hollow cavity, thereby improving the strength and load-bearing capacity of the entire structure.

[0011] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0012] A shelving system includes uprights, beams mounted on the uprights, and partitions located on the beams. The uprights are hollow structures, and the cross-section of the hollow structure along the direction of the beams forms at least two layers of loop structure.

[0013] The crossbeam includes a closed cavity for supporting the partition, and a baffle extending along the height direction of the column along the closed cavity. The column is provided with a plurality of assembly parts along the height direction, and an assembly end that mates with the assembly parts is formed at the end of the closed cavity and / or at the baffle.

[0014] Furthermore, in the assembly part or assembly end, one part is provided with an assembly hole and the other part is provided with a rivet. The assembly hole or rivet extends into the cavity structure of the two-layer loop structure to complete the riveting.

[0015] Furthermore, the end of the baffle is bent to form a bent edge, and the bent edge forms a rivet assembly point.

[0016] Furthermore, the loop structure forms a semi-enclosed structure, and several of the assembly parts are located on the inner wall of the semi-enclosed structure.

[0017] Furthermore, within the semi-enclosed structure, at least two assembly parts are provided in the horizontal direction of the loop structure.

[0018] Furthermore, clearance notches are formed at both ends of the enclosed cavity, and an inclined surface is formed on the outer side of the clearance notches near the column.

[0019] Furthermore, the column is integrally bent and welded through the circuit structure, and the weld joint forms at least a double-layer weld or a single-layer spot weld after bending. The double-layer weld makes the weld joint form at least two paths for dispersing force transmission.

[0020] Furthermore, the double-layer structure includes an inner layer and an outer layer integrally bent and welded together, and the inner layer and the outer layer are connected by a first curved surface.

[0021] Furthermore, reinforcing ribs forming a dispersion path are provided at the closed cavity of the crossbeam and / or at the outer loop of the column.

[0022] Furthermore, the enclosed cavity is a polygon with an arc-shaped connection, and the enclosed cavity is bent and welded to the baffle at the connection point.

[0023] Furthermore, it also includes several column assemblies, wherein two assembly parts with opposite assembly directions are formed at the column assemblies.

[0024] Furthermore, the columns and beams form a storage space, and the storage space is surrounded by a closed panel, so that the storage space forms a bookcase with an opening at the top.

[0025] The beneficial effects of this utility model are as follows:

[0026] In this invention, by selecting a crossbeam that forms a closed cavity, compared to a single-layer design, the crossbeam adopts a fully enclosed design, significantly increasing the area connecting the columns and forming a closed mechanical circuit. Then, a double-bending process is incorporated internally, adding supporting structures at key connection points and vertical stress areas to disperse the external force transmission path and avoid localized stress concentration. These improvements increase the crossbeam's load-bearing capacity and ultimate load-bearing capacity, while also increasing shear resistance and reducing bending and deformation of the crossbeam under stress.

[0027] The column in this invention is improved from an open cross-section to a fully enclosed closed cross-section, with multi-point support achieved through double-layer bending inside. A second layer of bent support plate is added inside the column, and the force path is optimized through double-layer connection, increasing the contact area and thus extending the overall shear resistance and fatigue life.

[0028] In this invention, the crossbeams of the entire shelving system adopt an asymmetrical triangular design, and the center of gravity distribution is more rationally distributed through mechanical optimization. This improves the adaptability of the entire system, making it suitable for various scenarios such as home, warehouse, and industrial applications. Attached Figure Description

[0029] Figure 1 One of the structural schematic diagrams of the shelving system provided by this utility model;

[0030] Figure 2 The second schematic diagram of the structure of the shelving system provided by this utility model;

[0031] Figure 3 One of the usage state diagrams of the column assembly provided by this utility model;

[0032] Figure 4 The second diagram showing the usage state of the column assembly provided by this utility model;

[0033] Figure 5 A partial structural diagram of the shelving system provided by this utility model;

[0034] Figure 6 Assembly drawing of the crossbeam and column provided for this utility model;

[0035] Figure 7A cross-sectional view of the beam provided by this utility model;

[0036] Figure 8 One of the cross-sectional views of the column provided by this utility model;

[0037] Figure 9 A second sectional view of the column provided for this utility model;

[0038] Figure 10 A schematic diagram of the reinforcing rib provided by this utility model;

[0039] Figure 11 One of the structural schematic diagrams of the shelving system provided by this utility model with the addition of a closed plate;

[0040] Figure 12 A second schematic diagram showing the addition of a closed panel to the shelving system provided by this utility model;

[0041] In the picture:

[0042] 1. Column; 11. Assembly hole; 2. Crossbeam; 21. Enclosed cavity; 22. Rivet; 23. Relief notch; 24. Second curved surface; 3. Partition; 4. Baffle; 41. Bending edge; 5. Loop structure; 51. Inner layer; 52. Outer layer; 53. First curved surface; 6. Reinforcing rib; 7. Enclosed plate. Detailed Implementation

[0043] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0044] See attached document Figure 1-10 As shown, the shelving system in this embodiment includes a column 1, a crossbeam 2 mounted on the column 1, and a partition 3 located on the crossbeam 2. The column 1 has a hollow structure, and the cross section of the hollow structure along the direction of the crossbeam 2 forms at least two layers of loop structure 5.

[0045] The crossbeam 2 includes a closed cavity 21 for supporting the partition 3, and a baffle 4 extending along the height direction of the column 1 from the closed cavity 21. The column 1 is provided with a plurality of assembly parts along the height direction, and an assembly end that cooperates with the assembly parts is formed at the end of the closed cavity and / or at the baffle 4.

[0046] In this embodiment, the closed cavity 21 in the crossbeam 2 is specifically designed with a full enclosure, which significantly increases the area of ​​the connecting column to form a closed mechanical circuit. The supporting column 1 is improved from an open cross-section to a fully enclosed closed cross-section, with multi-point support achieved through double-layer bending. A second layer of bent support plate is added inside the column, optimizing the force path and increasing the contact area through double-layer connection.

[0047] In this embodiment, the load-bearing partition 3 can be made of steel, glass, marble, wood, solid wood composite board, or imitation wood marble board, etc., to meet the needs of different customers and achieve different functions.

[0048] In this embodiment, the crossbeam adopts an irregular triangle design with an angle of 15°-70°. Through mechanical optimization, the center of gravity distribution is made more reasonable. The angle here is mainly the angle formed near the support. Therefore, this embodiment has the following effects:

[0049] 1) Reduce shear force concentration and enhance the structure's resistance to overturning.

[0050] 2) Improve the system's adaptability, making it suitable for home, warehouse, and industrial settings.

[0051] Preferably, in this embodiment, one of the assembly parts or assembly ends is provided with an assembly hole 11, and the other is provided with a rivet 22. The assembly hole 11 or the rivet 22 extends into the cavity structure of the two-layer loop structure to complete the riveting. In this embodiment, the assembly hole 11 can be on the column or the beam. Similarly, the rivet 22 is also present. Unlike the prior art, where columns are mostly single-layer structures and the rivets are exposed, in this embodiment, the rivet 22 can extend into the assembly hole 11. In this case, it only extends into one layer and does not protrude from the outer layer, making the structure more aesthetically pleasing.

[0052] To improve the strength of the rivet, the end of the baffle 4 is bent to form a bent edge 41, which forms the rivet assembly point. In this embodiment, the bent edge 41 can be an inverted U-shaped structure or a reduced-diameter structure. The reduced-diameter section at the bottom of the necked structure allows it to effectively interfere with the rivet, while the increase in the bent edge increases the thickness or connecting surface at this point, thereby increasing the overall strength of the assembly.

[0053] Preferably, the loop structure 5 forms a semi-enclosed structure, and several of the assembly parts are located on the inner wall of the semi-enclosed structure. Specifically, at this time, the column, viewed from the side or top view, has an L-shaped structure, which can shield and protect the connection between the internal column and the crossbeam through both sides.

[0054] In this embodiment, when there are multiple crossbeams 2, at least two assembly parts are provided in the horizontal direction of the loop structure 5 within the semi-enclosed structure.

[0055] To make full use of the space and facilitate insertion and access at the assembly point, clearance notches 23 are formed at both ends of the enclosed cavity 21, and an inclined surface is formed on the outer side of the clearance notches 23 near the column 1. The inclined surface facilitates insertion.

[0056] In this embodiment, the column 1 is integrally bent and welded together with the circuit structure 5. The weld joint forms at least a double-layer weld after bending, which creates at least two paths for dispersing force transmission. In this embodiment, the double-layer weld actually adds a 1mm-5mm extension connection area at one end, significantly improving connection stability and bending stiffness. This design improves shear resistance by more than 30% and reduces local deformation by 50%; simultaneously, fatigue life is extended to twice the normal life under cyclic loading conditions.

[0057] For the column, in this embodiment, the specific double-layer structure includes an inner layer 51 and an outer layer 52, which are integrally bent and welded together. The inner layer 51 and the outer layer 52 are connected by a first curved surface 53. The purpose of connecting them by the first curved surface 53 is also to increase the load-bearing strength.

[0058] In this embodiment, for column 1, a closed loop is formed by bending the plate. At the closure point, a bend can be set, with one end of the plate bent or both ends bent at the same time, which increases the strength within the closed loop. When both ends are bent, the bend can be made simultaneously inward and in the same direction, in the opposite direction, or perpendicularly, so that the closed loop forms a variety of structures.

[0059] In this embodiment, the cross-section of column 1 can be L-shaped or T-shaped.

[0060] In this embodiment, reinforcing ribs 6 forming a dispersion path are provided at the closed cavity of the crossbeam 2 and / or at the outer loop of the column 1. In this embodiment, the reinforcing ribs 6 are structures that form a dispersion path, such as an enlarged cavity, a triangle, or an arc, thereby dispersing the stress at the center outward and improving the strength.

[0061] In this embodiment, for the crossbeam 2, the enclosed cavity 21 is a polygon with arc-shaped connections, and the connection between the enclosed cavity 21 and the baffle 4 forms a bent inverted U-shaped structure. In this embodiment, adjacent sides in the specific enclosed cavity 21 are connected by a second curved surface 24.

[0062] See attached document Figure 1 and Figure 3-4 At this point, the cross-section of column 1 is T-shaped, and installation can be carried out on both sides of each column 1; refer to the attached document. Figure 2 and 5 As shown, the cross-section of the column is L-shaped at this time, and only one side can be assembled.

[0063] In this embodiment, the enclosed cavity 21 can be triangular or square, etc. The double-bending process added internally allows for multiple double-bending structures to be set at the ends of the baffle 4 and at the connection between the enclosed cavity 21 and the baffle. This adds support structures at the connection points and other stress areas, dispersing the transmission path of external forces and reducing local stress concentration. This increases the overall load-bearing capacity of the beam by 2 times, reaching an ultimate load of 150-200 kg. Simultaneously, it improves shear resistance, reducing bending and deformation of the beam under stress.

[0064] In this embodiment, two bends are added at the interface inside the beam to improve shear and compressive resistance through multi-layer support. The bend at the connection between the baffle and the enclosed cavity is to increase connectivity while dispersing vertical forces. The bend at the baffle increases the adhesion of the corresponding anchor point. The two bends together form a multi-level support structure, effectively dispersing external forces and avoiding structural failure caused by excessive stress at a single point.

[0065] See attached document Figure 3-4 As shown, this embodiment also includes several column assemblies, at which two assembly parts with opposite assembly directions are formed. The column assemblies in this embodiment have two configurations: one is two L-shaped joints, and the other is a T-shaped structure, thus directly forming two opposite assembly parts.

[0066] In this embodiment, when the cross-section of the column 1 is L-shaped, it includes a vertical first direction and a horizontal second direction perpendicular to the first direction. When splicing, they are in the same direction, such as being vertically contacted and fixed or horizontally contacted and fixed at the same time. Then, the opening directions of the two L-shapes are opposite, thus forming an assembly part with two assembly directions opposite to each other, such as one facing left and one facing right.

[0067] In this embodiment, when the cross-section of the column 1 is T-shaped, two assembly parts are formed on both sides, thereby completing two reverse assembly methods.

[0068] In this embodiment, the column assembly allows the entire shelving system to be assembled in an adjustable length configuration. Furthermore, by selecting column assemblies of different heights, a shelving system with multiple rows of shelves can be formed, thus diversifying the subsequent assembly methods.

[0069] See attached document Figure 9 As shown, in this embodiment, the column 1 can also be a hollow T-shaped structure. In this case, the T-shape is formed by bending a metal structure once to form a closed loop of the T-shape. This closed loop is also double-layered, and each side of the T-shape is composed of two layers. It is formed by bending in one piece, which is simple to produce.

[0070] In this embodiment, the reinforcing rib 6 is a raised or recessed structure, and is located on the inner or outer side of the column 1. In this embodiment, since the column 1 is mainly L-shaped or T-shaped in cross-section, in the double layer it forms, the inner L-shaped layer constitutes the inner side, and the outer L-shaped layer constitutes the outer side. For the T-shaped layer, it only has an outer side, i.e., the outer surface. Therefore, in the L-shaped layer, the reinforcing rib 6 can be set on the inner side, the outer side, or both the inner and outer sides simultaneously, while in the T-shaped layer, it can only be set on the outer side (i.e., the outer surface).

[0071] In this embodiment, the T-shaped structure includes both a horizontal and a vertical structure. The horizontal direction forms the load-bearing component, while the vertical direction provides overall support. Therefore, the reinforcing rib 6 is preferentially positioned in the horizontal direction. That is, when the cross-section of the double-layer structure is T-shaped, the reinforcing rib 6 is located on the outer surface of the horizontal side of the T-shaped structure to form a storage cavity.

[0072] In this embodiment, the reinforcing rib 6 is one or more. When there is one or more, they can all be protruding structures or all be recessed structures. In this case, a T-shaped structure can be formed along the horizontal direction of the storage space, and it has multiple storage cavities. Since the thickness direction of the entire T-shaped structure forms the length direction of the column body, the multiple storage cavities can form multiple rows of shelves.

[0073] In this embodiment, for the T-shaped structure, when several sides are bent to form a double-layer structure, the adjacent sides are connected by a curved surface, specifically a chamfered arc, thereby ensuring the distribution of force.

[0074] See attached document Figure 11-12 As shown, the shelving system in this embodiment can be modified through simple structural improvements to form shelving products of different shapes, such as bookshelves. In this case, the uprights and crossbeams form the storage space, and the storage space is surrounded by a closed panel, making the storage space a bookcase with an opening at the top. In this embodiment, since the four uprights form the storage space and then the crossbeams are erected, but the uprights are open to each other, a closed panel can be added to reduce the number of openings to only one. Alternatively, anti-leakage strips or other components can be added to the crossbeams.

[0075] The shelving system in this embodiment has the following advantages:

[0076] This invention has significant advantages in the following three aspects:

[0077] 1. Increased load-bearing capacity:

[0078] The selected fully enclosed L-shaped uprights 1 and fully enclosed triangular reinforced crossbeams 2 enclose the cross-section, improving bending stiffness and shear strength. The combination of the crossbeam and upright design allows the load-bearing limit of a single shelf to reach over 200kg (a 100% increase).

[0079] 2. Enhanced stability:

[0080] The welding and bending processes optimized the force path and force flow distribution of the columns, reducing swaying and structural loosening at the beam connections. The fully enclosed and multi-point supported structure reduced structural swaying, increasing bending stiffness and shear strength by 30%-50%.

[0081] 3. Extended service life:

[0082] The bending design significantly enhances fatigue life, reducing the probability of failure by 80% under repeated cyclic loading.

[0083] The fully enclosed design of the beams and columns in this embodiment can be achieved by riveting or other methods, but welding after integral bending is more efficient and stable.

[0084] The fully enclosed triangular reinforced beam design in this embodiment, especially the bending and welding processes and the closed section, improves the load-bearing capacity and optimizes the stress distribution.

[0085] For fully enclosed L-shaped columns, it improves the overall structural rigidity and stability, and significantly enhances fatigue life and shear resistance.

[0086] In this embodiment, the combination of crossbeams and columns is used to rationally allocate force flow paths, enhance anti-overturning ability, and adapt to various scenario requirements.

[0087] The mechanical experiments and analyses conducted on the shelving system presented in this embodiment yielded the following conclusions:

[0088] 1. Bending stiffness test:

[0089] The improved beam and column combination design increases the bending stiffness by 40% and reduces lateral deformation by 50%.

[0090] 2. Shear strength test:

[0091] The shear resistance of the beam and column combination is increased by 30%, significantly reducing the risk of local failure.

[0092] 3. Fatigue test:

[0093] After 200,000 cycles of cyclic loading, both the beam and the column maintained excellent performance and no significant fatigue damage occurred.

[0094] 4. Load-bearing test:

[0095] In the overall structure test, the shelving unit has a load-bearing capacity of over 200kg, which is superior to mainstream products on the market.

[0096] In this embodiment, when only one shelving area is needed, an assembly area can be formed by four uprights, and then one or more layers of crossbeams can be assembled in the assembly area. When multiple shelving areas are needed, two L-shaped uprights can be added or T-shaped uprights can be selected.

[0097] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

[0098] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0099] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A shelving system comprising uprights, cross members fitted to the uprights and shelves located on the cross members, characterised in that, The column is a cavity structure, and a cross section of the cavity structure along a beam direction forms a loop structure of at least two layers. The beam includes a closed cavity for bearing a partition plate, and a baffle plate formed by extending along the closed cavity in a height direction of the column, and the column is provided with a plurality of assembly portions in the height direction, and the closed cavity end and / or the baffle plate is provided with an assembly end matched with the assembly portions. The closed cavity is a polygon connected by an arc, and the closed cavity and the baffle plate are connected by a reverse U-shaped structure after being bent. The adjacent sides in the closed cavity are connected by a second curved surface.

2. The shelving system of claim 1, wherein, In the assembly portion or the assembly end, one is provided with an assembly hole, and the other is provided with a rivet piece, and the assembly hole or the rivet piece extends into the cavity structure of the loop structure of two layers to complete riveting.

3. The shelving system of claim 2, wherein, The end of the baffle plate is bent to form a bent edge, and the bent edge forms a rivet assembly position.

4. The shelving system of claim 1, wherein, The loop structure forms a half-enclosing baffle structure, and the plurality of assembly portions are located at the inner wall of the half-enclosing baffle structure.

5. The shelving system of claim 4, wherein, In the half-enclosing baffle structure, the assembly portions in at least two directions are arranged in the horizontal direction of the loop structure.

6. The shelving system of claim 1, wherein, The closed cavity is provided with a clearance gap at both ends, and an inclined surface close to the column is formed outside the clearance gap.

7. The shelving system of claim 1, wherein, The column is formed by one-piece bending and welding through the loop structure, and the welding position forms at least a double-layer welding or a single-layer spot welding after being bent, and the double-layer welding forms at least two dispersed force transmission paths at the welding position.

8. The shelving system of claim 7, wherein, The double-layer structure includes an inner layer and an outer layer formed by one-piece bending and welding, and the inner layer and the outer layer are connected by a first curved surface.

9. The shelving system of claim 8, wherein, The closed cavity of the beam and / or the outer loop of the column are provided with reinforcing ribs forming a dispersion path.

10. The shelving system of any of claims 1-9, wherein, A plurality of column groups are further included, and the column groups are provided with two assembly portions in opposite assembly directions.

11. The shelving system of claim 1, wherein, The column and the beam form a storage space, and the outer periphery of the storage space is provided with a closed plate, so that the storage space forms a bookcase with an upper opening.

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