Flanged bracket for goods shelf and connecting structure of flanged bracket

Abstract

The utility model discloses an outer flanging corbel for a goods shelf and a connecting structure thereof, the outer flanging corbel comprises a corbel main body formed by punching SPHC hot-rolled plates, the top of the corbel main body is provided with a transverse continuous outer flanging, the direction of the continuous outer flanging is perpendicular to the plane of the corbel main body, the top flanging length of the continuous outer flanging is 14-16mm, the side edge bending length is 29-31mm, and the corbel main body is provided with an outer flanging. The thickness of the bracket body is 2-4 mm, kidney-shaped hole turnups are arranged on the two sides of the bracket body, the turnup edges and the bracket body form 90-degree bending angles, the bracket body is formed in a one-time mode through SPHC hot rolling plate stamping, a galvanized steel sheet laser cutting and bending technology is adopted for the bracket beam, traditional welding, plastic spraying and other complex procedures are omitted, the labor cost and the equipment cost are reduced, and the production efficiency is improved. The size of the corbel body can be flexibly adjusted according to the weight of goods, the width of the outer turnup and the arm length are designed in a direct proportion, group standardized production is supported, the design and machining cost is reduced, the outer turnup is tightly attached to the stand column, extra grooving for avoiding is not needed, and the installation process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of warehousing and logistics equipment technology, specifically to an outward-flaring bracket for a shelf and its connecting structure. Background Technology

[0002] In the field of warehousing and logistics equipment, rack cantilevers and their connecting structures are key components supporting the load-bearing capacity of racks. Currently, the rack cantilevers commonly found on the market are mainly formed by stamping the front hanging teeth, and fixing plates need to be welded to both sides to achieve a locking connection with the cantilever beam. This traditional structure has significant drawbacks: First, the welding process increases the complexity and cost of manufacturing, and the welding points are prone to stress concentration, resulting in insufficient seismic performance; second, the cantilever beams mostly adopt a rectangular tube with openings, which involves complicated processing steps (such as cutting, welding, electrostatic powder coating, etc.), which is time-consuming and has low material utilization, further increasing production costs.

[0003] In addition, although existing patented technologies (such as CN201821169462.6 "A through-type rack bracket beam structure") propose an integrated T-shaped structure, they still rely on welded connecting plates, the forming process is complex, and the connection between the extension and the fixed part is prone to cracking due to structural redundancy, thus limiting the overall load-bearing capacity.

[0004] The root cause of the above problems lies in the fact that traditional designs rely too heavily on welding processes, resulting in low production efficiency and serious material waste. At the same time, the uneven distribution of structural stress easily leads to local stress concentration at key connection points (such as the junction of the bracket and the column), which can cause potential fractures. Therefore, we need to propose an outward-flaring bracket for shelving and its connection structure. Utility Model Content

[0005] The purpose of this utility model is to provide an outward-flaring bracket for shelving and its connecting structure. By optimizing the redundant structure between the bracket and the upright, and between the bracket and the bracket beam, the external structure is clean and simple, which facilitates loading and unloading and will not cause scratches or other damage to the products. In addition, the bracket connecting structure is very easy to install and disassemble, which saves a lot of time and labor costs, improves construction efficiency, and the locking structure is stable, which also improves seismic performance and load-bearing capacity, and has broad application prospects.

[0006] To achieve the above objectives, this utility model provides an outward-flaring bracket for shelving, comprising: a bracket body formed by stamping SPHC hot-rolled sheet metal;

[0007] The top of the cow leg body is provided with a continuous outward flange, the direction of which is perpendicular to the plane of the cow leg body. The top fold length of the continuous outward flange is 14-16mm, the side fold length is 29-31mm, and the thickness of the cow leg body is 2-4mm.

[0008] The main body of the cow leg has waist holes on both sides, and the edge of the flange is bent at a 90° angle to the main body of the cow leg.

[0009] The inner side of the cow leg body is provided with through holes and shovel-shaped hanging teeth, and the surface of the hanging teeth is provided with reinforcing ribs.

[0010] The main body of the cow leg is formed by laser cutting and composite mold stamping in one go, without welding process.

[0011] Preferably, the flange width of the transverse continuous outward flange is directly proportional to the length of the cow leg arm, in order to adapt to the standardized design of different cargo weights.

[0012] Preferably, the waist hole of the flange is reserved with ±2mm in the length direction to optimize shear strength and material utilization.

[0013] Another aspect of this utility model provides a connecting structure for a shelf, used to connect the main body of a corbel, including: a corbel beam, wherein the corbel beam is made of galvanized steel plate bent into a C-shaped section, and is provided with a locking hole that matches the flange of the corbel waist hole, wherein the locking hole is a combination design of a round hole and a waist hole;

[0014] The main body of the bracket is inserted into the hole groove of the column by the hanging teeth and locked with bolts;

[0015] The corbel beam is fixed to the corbel waist hole flange by bolts, forming a weld-free connection;

[0016] The corbel beam is manufactured by laser cutting followed by two bending processes, without powder coating or welding.

[0017] Preferably, the hanging teeth and the slots of the column form a double fixation, and they fit snugly against the column without interference during installation, without the need for additional slotting to avoid them.

[0018] Preferably, the opening direction of the C-shaped section of the corbel beam is aligned with the flange of the corbel waist hole, and the diameter of the locking hole and the tolerance clearance of the bolt are ≤0.5mm.

[0019] Preferably, the galvanized steel plate of the corbel beam has a thickness of ≥1.5mm and the bending angle error is controlled within ±0.5°.

[0020] Preferably, the bolt uses a combination of a lock nut and a flat washer to improve seismic performance.

[0021] Preferably, a rubber buffer pad is provided at the connection between the corbel beam and the corbel body to reduce vibration noise.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The design of the top of the corbel body of this utility model features a continuous outward flange, which evenly transfers the load to the column, avoiding the risk of fracture caused by stress concentration on the column connection side of traditional corbels. The flanges of the waist holes on both sides of the corbel body are designed with a 90° bending angle to increase the local shear strength. The overall structure is compact and has a high material utilization rate. The bolts are locked by the cooperation of the hanging teeth and the column hole groove. Combined with the C-shaped cross section and locking hole of the corbel beam, the seismic performance and load-bearing capacity of the connection structure are significantly improved.

[0024] 2. The main body of the bracket is formed in one piece by stamping SPHC hot-rolled sheet metal. The bracket beam is made of galvanized steel sheet laser cutting and bending process, which eliminates the complex processes of traditional welding and powder coating, reducing labor and equipment costs. The size of the main body of the bracket can be flexibly adjusted according to the weight of the goods. The width of the outer flange is designed in proportion to the arm length, which supports standardized group production, reducing design and processing costs. The outer flange fits tightly with the column, without the need for additional grooving, simplifying the installation process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main body of the cow leg of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the corbel beam of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the column and the corbel of this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the corbel body and corbel beam of this utility model;

[0029] Figure 5 This is a schematic diagram of the assembly of the corbel body, column, and corbel beam of this utility model;

[0030] Figure 6 This is a laser cutting layout diagram for this utility model;

[0031] Figure 7 This is a diagram showing the working state of this utility model;

[0032] Figure 8 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0033] In the diagram: 1. Bracket body; 11. Continuous outward flange; 12. Waist hole flange; 13. Through hole; 14. Hanging tooth; 2. Bracket beam; 21. Locking hole; 3. Column; 31. Hole groove; 4. Bolt. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figure 1-8 This utility model provides an outward-flaring bracket for shelving, comprising: a bracket body 1 formed by stamping SPHC hot-rolled sheet metal, the material of which has high yield strength and ductility and is suitable for cold stamping process;

[0036] The top of the corbel body 1 is provided with a continuous transverse outward flange 11, the flange direction being perpendicular to the plane of the corbel body. The continuous outward flange 11 is perpendicular to the plane of the corbel body, the top fold length of the continuous outward flange 11 is 14-16mm, preferably 15mm; the side fold length is 29-31mm, preferably 30mm; the thickness of the corbel body is 2-4mm, preferably 3mm. This design increases the transverse cross-sectional area, disperses the stress on the contact surface between the column 3 and the corbel body 1, and avoids the risk of fracture caused by local stress concentration.

[0037] The main body of the bracket 1 has waist hole flanges 12 on both sides. The edge of the flange is bent at a 90° angle with the main body of the bracket. This angle range can balance the material ductility and shear strength, while reducing the risk of plate cracking during stamping.

[0038] The inner side of the bracket body 1 is provided with a through hole 13 and a shovel-shaped hanging tooth 14. The surface of the hanging tooth 14 is provided with reinforcing ribs. The shovel-shaped design of the hanging tooth can adapt to the tolerance of the column hole groove, and no additional grooving is required during installation.

[0039] The main body of the corbel 1 is formed by laser cutting and composite mold stamping in one go, without welding process. The main body of the corbel 1 is cut by laser cutting and formed by composite mold stamping in one go, including the outer flange 11, waist hole flange 12 and hanging teeth 14. The stamping process parameters include: stamping force ≤ 50 tons, bending radius ≤ 2mm, to ensure no cracks and smooth surface.

[0040] In addition, this embodiment also provides a connecting structure for a shelf, used to connect the main body 1 of the bracket, including: a bracket beam 2, the bracket beam 2 is made of galvanized steel plate bent into a C-shaped section, the galvanized layer thickness is ≥20μm, providing excellent rust prevention performance, and is provided with a locking hole 21 that matches the flange 12 of the bracket waist hole. The locking hole 21 is a combination design of round hole and waist hole, and the C-shaped opening direction is aligned with the flange 12 of the bracket waist hole, ensuring that the locking hole 21 and the waist hole flange 12 are accurately matched;

[0041] The main body 1 of the bracket is embedded in the slot 31 of the column 3 by the hanging teeth 14 and locked by the bolts 4. The hanging teeth 14 and the slot 31 of the column 3 form a double fixation, and there is no interference with the column 3 during installation, so no additional slotting is required to avoid it.

[0042] The bracket beam 2 is fixed to the bracket waist hole flange 12 by bolts 4, forming a weld-free connection. The processing flow of the bracket beam 2 is: laser cutting galvanized steel plate → two bending and forming (bending angle error ≤ ±0.5°), without welding or powder coating throughout the process, which greatly reduces the process cost.

[0043] The processing technology of the corbel beam 2 is laser cutting followed by two bending processes, without powder coating or welding.

[0044] The flange width of the transverse continuous outer flange 11 is directly proportional to the length of the cow leg arm (for example, an arm length of 100mm corresponds to a flange width of 15mm, and an arm length of 150mm corresponds to a flange width of 22.5mm). By adjusting the proportion, a standardized design for different cargo weights can be achieved, while ensuring that the material utilization rate is ≥85%, so as to adapt to the standardized design for different cargo weights.

[0045] Laser cutting layout uses an alternating vertical arrangement (see...) Figure 6 This improves the utilization rate of sheet metal, reduces the frequency of stamping die replacement, and shortens the production cycle of a single batch.

[0046] The opening direction of the C-shaped section of the corbel beam 2 is aligned with the flange 12 of the corbel waist hole, and the diameter of the round hole 21 and the tolerance clearance of the bolt 4 are ≤0.5mm (for example, M10 bolt with Φ10.5mm round hole). A ±2mm adjustment space is reserved in the length direction of the waist hole to compensate for installation deviation. The thickness of the galvanized steel plate of the corbel beam 2 is ≥1.5mm, and the bending angle error is controlled within ±0.5°.

[0047] Bolt 4 uses a combination of anti-loosening nut and flat washer to improve seismic performance. The anti-loosening nut is a nylon insert type (such as NYLON lock nut), and the flat washer is ≥1mm thick, which can effectively suppress loosening caused by vibration.

[0048] Rubber buffer pads are provided at the connection between the bracket beam 2 and the bracket body 1 to reduce vibration noise. The rubber buffer pads (2-3mm thick, Shore hardness 50-60A) are used to absorb the vibration energy generated by the dynamic load of the shelf and reduce noise.

[0049] Load transfer path: The weight of the cargo is transferred through the bracket beam 2 to the waist hole flange 12 area of ​​the bracket body 1, and then distributed to the column 3 through the transverse continuous outer flange 11. The continuous structure of the outer flange avoids the stress concentration problem of traditional welded brackets, so that the load is evenly distributed along the length of the bracket.

[0050] Dual fixing mechanism: the hanging teeth 14 are embedded in the column hole groove 31 to form a mechanical engagement, and the bolts 4 are tightened to further restrict the displacement; the bracket beam 2 is fixed to the bracket waist hole flange 12 through the bolts 4 to form a multi-point rigid connection.

[0051] Seismic and noise reduction mechanisms: The anti-loosening nuts and rubber buffer washers work together to suppress the transmission of vibration energy; the C-shaped bracket beam section provides lateral support and reduces the lateral sway of the rack;

[0052] Dynamic adaptability: The combination of waist holes and round holes allows for ±2mm installation tolerance adjustment, accommodating minor deformations caused by thermal expansion and contraction of the shelving or foundation settlement.

[0053] Based on a unique structural design and material selection, this utility model features a cantilever body 1 made of SPHC hot-rolled sheet metal, stamped with a continuous outward flange 11 at the top, waist-hole flanges 12 on both sides, and through holes 13 and shovel-shaped hanging teeth 14 on the inner side. This design ensures that the force is evenly transmitted to the uprights when the cantilever bears goods, while enhancing its load-bearing capacity and stability. The cantilever beam 2 is made of galvanized steel sheet bent into a C-shaped section and has locking holes 21 that match the waist-hole flanges 12. It is connected to the cantilever body 1 by bolts 4. This weld-free connection method not only reduces production costs but also improves production efficiency. During the use of the rack, goods are placed on the cantilever beam 2, and the cantilever body 1 and the cantilever beam 2 jointly bear the weight of the goods. The double fixation of the hanging teeth 14 with the slots 31 of the uprights 3, as well as the locking of the bolts 4, ensures the stability and safety of the rack structure. At the same time, the rubber buffer pads effectively reduce vibration noise and improve the comfort of using the rack.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of outward-flaring bracket for shelving, characterized in that, include: The main body of the cow leg (1); The top of the cow leg body (1) is provided with a horizontal continuous outward flange (11), the direction of the continuous outward flange (11) is perpendicular to the plane of the cow leg body, the top fold length of the continuous outward flange (11) is 14-16mm, the side fold length is 29-31mm, and the thickness of the cow leg body (1) is 2-4mm. The main body of the cow leg (1) has waist hole flanges (12) on both sides, and the edge of the flanges is bent at a 90° angle with the main body of the cow leg; The inner side of the cow leg body (1) is provided with a through hole (13) and a shovel-shaped hanging tooth (14), and the surface of the hanging tooth (14) is provided with reinforcing ribs; 2. The outward-flaring bracket for a shelving unit according to claim 1, characterized in that: The flange width of the transverse continuous outward flange (11) is directly proportional to the length of the cow leg arm.

3. The outward-flaring bracket for a shelf according to claim 1, characterized in that: The waist hole flange (12) has a reserved length of ±2mm in the waist hole direction.

4. A connecting structure for shelving, comprising the outwardly flanged bracket for shelving as described in any one of claims 1-3, characterized in that, Also includes: The corbel beam (2) is made of galvanized steel plate bent into a C-shaped section and has a locking hole (21) that matches the corbel waist hole flange (12). The locking hole (21) is a combination design of round hole and waist hole. The main body (1) of the cow leg is embedded in the hole (31) of the column (3) by the hanging teeth (14) and locked by the bolts (4); The corbel beam (2) is fixed to the corbel waist hole flange (12) by bolts (4).

5. A connecting structure for a shelf according to claim 4, characterized in that: The hanging teeth (14) and the slots (31) of the column (3) form a double fixation.

6. A connecting structure for a shelf according to claim 5, characterized in that: The opening direction of the C-shaped section of the corbel beam (2) is aligned with the flange (12) of the corbel waist hole, and the diameter of the round hole (21) is ≤0.5mm in tolerance fit with the bolt (4).

7. A connecting structure for a shelf according to claim 6, characterized in that: The thickness of the galvanized steel plate of the corbel beam (2) is ≥1.5mm, and the bending angle error is controlled within ±0.5°.

8. A connecting structure for a shelf according to claim 4, characterized in that: A rubber buffer pad is provided at the connection between the corbel beam (2) and the corbel body (1).

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