Grafting device for a shelf upright

Abstract

This utility model relates to the field of rack connection technology, and in particular to a grafting device for rack uprights. It solves the problem in existing technologies where the grafting plate and connector lack a stable supporting structure, leading to loosening or even detachment of the connection under shear force or vibration, and micro-deformation under long-term load, thus affecting the stability of the upright. The device includes two grafting plates, with inclined support plates connected to both sides of the grafting plates via vertical plates. It also includes side plates, positioning plates, and a detachable connection structure. Through the synergistic action of these multiple components, a multi-directional support and limiting system is constructed. While ensuring ease of installation, it significantly improves the connection strength, shear resistance, and overall rigidity of the grafting joint, enhances vibration resistance and stability under long-term load, effectively prevents loosening and detachment, and structural deformation, thereby improving the safety and reliability of rack upright connections.

Description

Technical Field

[0001] This utility model relates to the field of shelving connection technology, and in particular to a grafting device for shelving uprights. Background Technology

[0002] Uprights are core load-bearing components in logistics and warehousing systems, primarily supporting the entire rack structure and the weight of the goods it carries. Their structural strength and stability directly affect the safety and lifespan of the rack system. In practical applications, due to transportation, installation, or functional adjustments, multiple short upright sections are often connected and combined using specific devices to form integrated uprights that meet different height requirements. This connection method not only improves the flexibility of rack assembly but also reduces production and transportation costs. Therefore, grafting devices for rack uprights, as key equipment for achieving this connection function, are of great significance in the manufacturing and installation process of racks.

[0003] A current utility model patent, CN 217285296 U, discloses a grafting device for shelf uprights, including a grafting plate and connectors disposed at its top and bottom. The connectors consist of an outer connector and an inner connector, with the outer connector located on the outside of the non-opening side of the sub-upright, and the inner connector embedded inside the sub-upright near its open side. By fixing the sub-uprights together from multiple directions, this device achieves high structural strength and effectively evens out stress, improving the overall reliability of the uprights. Tests show that the overall uprights connected using this grafting device achieve stiffness and strength comparable to integrally molded uprights, while significantly improving installation efficiency.

[0004] However, there are still technical defects in actual use: the grafting device does not have a special support and stabilizing structure between the grafting plate and the connector, resulting in a lack of sufficient auxiliary fixing measures between the two. When subjected to large shear forces or vibrations, it is easy to loosen or even detach. Due to the lack of an effective reinforcement structure, the grafting part is prone to micro-deformation under long-term load, which in turn affects the verticality and stability of the overall column and creates safety hazards.

[0005] Therefore, to address the shortcomings of existing technologies, we urgently need a grafting device for rack uprights to solve the aforementioned problems. This new device should be able to ensure connection strength while adding necessary support and stabilizing structures, thereby improving the robustness and deformation resistance of the grafted joint, further enhancing the overall load-bearing capacity and safety factor of the uprights, and better meeting the modern demands of modern logistics and warehousing systems for high-strength, high-stability, and efficient installation of rack structures, thus providing more reliable technical support for the industry's development. Utility Model Content

[0006] The purpose of this utility model is to provide a grafting device for shelf uprights, which solves the problem that the existing technology does not have a special support and stabilizing structure between the grafting plate and the connector, resulting in insufficient auxiliary fixing measures between the two. Under the action of large shear force or vibration, there is a risk of loosening or even detachment. Due to the lack of an effective reinforcement structure, the grafting part is prone to micro-deformation under long-term load, which affects the verticality and stability of the overall upright and creates safety hazards.

[0007] To achieve the above objectives, this utility model provides a grafting device for shelf uprights, comprising two grafting plates, each of which is connected to two connecting plates on its opposite side. One side of each connecting plate is inclined to a support plate, and one end of the support plate is connected to the connecting plate and the other end is connected to the grafting plate.

[0008] Each of the two grafting plates has two side plates on both sides, and a positioning plate is fixedly connected to the top and bottom of each side plate. The positioning plate is detachably connected to the grafting plate.

[0009] Both connecting plates have a bottom ring plate on their outer rings. A side ring plate is fixedly connected to the top edge of the bottom ring plate. The side ring plate is bolted to the side wall of the connecting plate. The bottom ring plate is bolted to the top of the grafting plate.

[0010] The support plate has a through groove at the center of one side, and both ends of the support plate are fixedly connected to fixing plates. The two fixing plates are respectively connected to the connecting plate and the grafting plate by bolts.

[0011] Each of the two bottom ring plates has a mating plate fixedly connected to one side of each other, and each pair of adjacent mating plates is connected by a fixing screw.

[0012] The support plate has several reinforcing plates on one side. One end of each reinforcing plate is connected to the support plate via a vertical plate, and the other end is connected to the connecting plate via a vertical plate.

[0013] The support plate is made of metal, and the positioning plate is fixedly connected to the top of the grafting plate with bolts.

[0014] This utility model discloses a grafting device for shelf uprights. By incorporating a connecting plate and an inclined support plate, it effectively improves the structural stability of the grafting area under vertical loads, avoiding the localized stress concentration problem caused by the lack of auxiliary support structures in traditional connection methods. Simultaneously, the presence of the support plate enhances the overall rigidity of the grafting area, reducing the possibility of micro-deformation under long-term loads. Furthermore, by setting multiple side plates and positioning plates on both sides of the grafting plate, it not only achieves a firm connection between the grafting device and the sub-upright but also improves the shear resistance and vibration resistance of the connection surface, effectively preventing… Loosening or detachment caused by external forces is a concern. Particularly noteworthy is the detachable connection between the positioning plate and the grafting plate, which enhances the device's versatility and reusability, facilitating rapid on-site installation and replacement. Compared to existing technologies lacking a stable support structure between the grafting plate and connectors, this solution fundamentally improves the load-bearing capacity and safety factor of the grafting area by adding key components such as support plates and side plates. This resolves safety hazards caused by weak connections and meets the practical needs of modern logistics warehousing systems for high-strength, high-stability, and efficient installation of shelving. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a structural schematic diagram of the grafting plate and connecting plate according to an embodiment of the present utility model.

[0018] Figure 3 This is a structural schematic diagram of the positioning plate and the side ring plate of an embodiment of the present utility model.

[0019] Figure 4 This is a structural schematic diagram of the support plate and fixing plate according to an embodiment of the present utility model.

[0020] Figure 5 This is a structural schematic diagram of the side ring plate and the butt plate of an embodiment of this utility model.

[0021] In the diagram: 1. Grafting plate; 2. Connecting plate; 3. Side plate; 4. Support plate; 5. Bottom ring plate; 6. Positioning plate; 7. Side ring plate; 8. Fixing plate; 9. Reinforcing plate; 10. Butt joint plate; 11. Through groove; 12. Vertical plate. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Example 1

[0024] Please see Figure 1-5 As shown, a grafting device for shelf uprights in this embodiment includes two grafting plates 1. Two connecting plates 2 are connected to the sides of the two grafting plates 1 that are far apart from each other. One side of the connecting plate 2 is inclined to a support plate 4. One end of the support plate 4 is connected to the connecting plate 2, and the other end is connected to the grafting plate 1.

[0025] Two side plates 3 are provided on both sides of the two grafting plates 1. Positioning plates 6 are fixedly connected to the top and bottom ends of the side plates 3. The positioning plates 6 are detachably connected to the grafting plates 1.

[0026] The workflow is as follows: When connecting two sub-columns, firstly, two grafting plates 1 are respectively fitted onto the outside of the upper and lower sub-columns to be connected, and their positions are adjusted to align them; one side of the grafting plate 1 is connected to the support plate 4 through the connecting plate 2. The support plate 4 is inclined, which can effectively disperse the vertical pressure from the column and reasonably transmit it to the connection structure, enhancing the overall stress stability; four side plates 3 are provided on both sides of the grafting plate 1, and each side plate 3 has a positioning plate 6 fixedly connected to its top and bottom. The positioning plate 6 is fixedly connected to the grafting plate 1 by bolts or other detachable means, thereby realizing a stable connection between the grafting device and the sub-column; through the synergistic effect of the grafting plate 1, connecting plate 2, support plate 4, side plate 3 and positioning plate 6, this structure constructs a connection system with multi-directional support and limiting functions, which further enhances the rigidity and shear resistance of the grafting part while ensuring convenient installation.

[0027] Example 2

[0028] Please see Figure 1-5 As shown in this embodiment, a grafting device for shelf uprights has a bottom ring plate 5 on the outer ring of each of the two connecting plates 2. A side ring plate 7 is fixedly connected to the top edge of the bottom ring plate 5. The side ring plate 7 is bolted to the side wall of the connecting plate 2, and the bottom ring plate 5 is bolted to the top of the grafting plate 1. Specifically, through the arrangement of the connecting plate 2, the bottom ring plate 5, and the side ring plate 7, when the grafting device bears the vertical load from the upright, the bottom ring plate 5 is bolted to the top of the grafting plate 1, while the side ring plate 7 is bolted to the side wall of the connecting plate 2, forming a ring-shaped reinforcing area around the connecting structure. This achieves the effect of enhancing the overall structural strength of the grafting part, improving the load-bearing capacity, and improving the deformation resistance.

[0029] Each of the two bottom ring plates 5 has a mating plate 10 fixedly connected to one side of each other. Each pair of adjacent mating plates 10 is connected by a fixing screw. Specifically, the mating plates 10 and fixing screws on the two bottom ring plates 5 form a transverse connection structure between the bottom ring plates 5 on both sides of the grafting device, which improves the rigidity and shear resistance of the entire grafting device in the horizontal direction, thereby enhancing the overall structural stability and preventing lateral displacement.

[0030] Example 3

[0031] Please see Figure 1-5 As shown in the figure, a grafting device for shelf uprights in this embodiment has a through groove 11 at the center of one side of the support plate 4. Both ends of the support plate 4 are fixedly connected to the fixing plates 8. The two fixing plates 8 are bolted to the connecting plate 2 and the grafting plate 1, respectively. Specifically, through the setting of the support plate 4, the through groove 11 and the fixing plates 8, when an external force is applied to the grafting structure, the support plate 4 is bolted to the connecting plate 2 and the grafting plate 1 through the fixing plates 8 at both ends. The existence of the through groove 11 reduces the self-weight of the support plate and facilitates installation and adjustment, thereby achieving the effects of optimizing the force distribution, improving structural stability and connection reliability.

[0032] Several reinforcing plates 9 are provided on one side of the support plate 4. One end of the reinforcing plate 9 is connected to the support plate 4 through the vertical plate 12, and the other end is connected to the connecting plate 2 through the vertical plate 12. Specifically, through the arrangement of the support plate 4, the reinforcing plate 9 and the vertical plate 12, the reinforcing plate 9 extends from the support plate 4 to the connecting plate 2 and is fixed at the connection point through the vertical plate 12, thereby constructing a three-dimensional support system. During the stress process, the stress concentration is effectively dispersed, which further improves the load-bearing capacity and fatigue resistance of the grafting device.

[0033] The support plate 4 is made of metal, and the positioning plate 6 is fixedly connected to the top of the grafting plate 1 with bolts. Specifically, the setting of the support plate 4 made of metal and the bolt connection between the positioning plate 6 and the top of the grafting plate 1 not only improves the strength and durability of the support plate itself, but also ensures the firmness of the connection between the grafting device and the sub-column, thereby improving the overall structure and enhancing the stability under vibration and long-term load.

[0034] The grafting device for shelf uprights provided by this utility model has the following complete structure: two grafting plates 1, connecting plates 2 respectively connected to both sides of the grafting plates 1, a support plate 4 inclined and connected to the connecting plates 2 and the grafting plates 1, side plates 3 on both sides of the grafting plates 1, positioning plates 6 fixedly connected to the top and bottom of the side plates 3, bottom ring plates 5 on the outer ring of the connecting plates 2, side ring plates 7 fixedly connected to the top edge of the bottom ring plates 5, a docking plate 10 between the two bottom ring plates 5, a fixing screw connecting the docking plate 10, a through groove 11 opened in the center of the support plate 4, fixing plates 8 at both ends of the support plate 4 and connected to the connecting plates 2 and the grafting plates 1, a reinforcing plate 9 on one side of the support plate 4 and connected to the connecting plates 2 by a vertical plate 12, and the support plate 4 made of metal and the positioning plate 6 and grafting plates 1 detachably connected by bolts.

[0035] When connecting the upper and lower sub-columns, firstly, two grafting plates 1 are respectively fitted onto the outside of the upper and lower columns and adjusted to the appropriate positions. One side of the grafting plate 1 is connected to the support plate 4 via a connecting plate 2. The support plate 4 is inclined, which can effectively disperse stress and reasonably transmit it to the connection structure when bearing the vertical pressure from the column, thereby enhancing the overall stress stability. Four side plates 3 are provided on both sides of the grafting plate 1. Each side plate 3 has a positioning plate 6 fixedly connected to its top and bottom. The positioning plate 6 is connected to the top of the grafting plate 1 by bolts or other detachable means, so that the grafting device is firmly fixed to the sub-column. To enhance the structural strength, a bottom ring plate 5 is provided on the outer ring of the connecting plate 2. A side ring plate 7 is fixed at the top edge of the bottom ring plate 5. The side ring plate 7 is bolted to the side wall of the connecting plate 2, and the bottom ring plate 5 is also bolted to the top of the grafting plate 1, forming a ring-shaped reinforcement area around the connection part, improving the load-bearing capacity. Deformation resistance; In addition, a butt plate 10 is provided between the two bottom ring plates 5, and adjacent butt plates 10 are connected by fixing screws, which further enhances the horizontal rigidity and shear resistance of the grafting device and prevents lateral displacement; A through groove 11 is opened at the center of one side of the support plate 4, which reduces its own weight and facilitates installation and adjustment. Fixing plates 8 are provided at both ends, which are bolted to the connecting plate 2 and the grafting plate 1 respectively to improve the connection reliability; To further optimize the stress structure, several reinforcing plates 9 are also provided on one side of the support plate 4, which are connected to the support plate 4 and the connecting plate 2 respectively through vertical plates 12 to build a three-dimensional support system, effectively dispersing the stress concentration area and improving the overall load-bearing capacity and fatigue resistance; The support plate 4 is preferably made of metal material, which has higher strength and durability. At the same time, the positioning plate 6 is bolted to the grafting plate 1 to ensure that the entire grafting structure can maintain good stability and vibration resistance during long-term use.

[0036] The grafting device provided by this utility model has shown significant beneficial effects in practical applications:

[0037] The inclined structure of the grafting plate 1, connecting plate 2, and support plate 4 effectively disperses vertical loads, avoids stress concentration, and improves the uniformity of stress and structural stability at the grafting point. The side plate 3 and positioning plate 6 provide a stable connection between the grafting device and the sub-column, enhancing shear and vibration resistance and preventing loosening and detachment due to external forces. The combined design of the bottom ring plate 5 and side ring plate 7 forms a ring-shaped reinforcement area at the connection point, improving the overall structural strength and deformation resistance. The connection method between the butt plate 10 and the fixing screw enhances the lateral stiffness of the grafting device and effectively prevents horizontal displacement. The synergistic effect of the through groove 11 in the support plate 4 and the fixing plate 8 not only reduces its own weight but also improves the reliability of the structural connection and the ease of installation. The setting of the reinforcing plate 9 and the vertical plate 12 constructs a three-dimensional support system, further enhancing the load-bearing capacity and fatigue resistance of the grafting device. The use of metal material for the support plate 4 and the bolt connection between the positioning plate 6 and the top of the grafting plate 1 not only ensures the high strength and durability of the structure but also enhances the overall connection stability and vibration resistance.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A grafting device for shelf uprights, characterized in that, include: Two grafting plates are provided, and two connecting plates are connected to each of the two grafting plates on their opposite sides. One side of each connecting plate is inclined to a support plate, and one end of the support plate is connected to the connecting plate and the other end is connected to the grafting plate. Each of the two grafting plates has two side plates on both sides, and a positioning plate is fixedly connected to the top and bottom of each side plate. The positioning plate is detachably connected to the grafting plate.

2. The grafting device for shelf uprights according to claim 1, characterized in that, Both connecting plates have a bottom ring plate on their outer rings. A side ring plate is fixedly connected to the top edge of the bottom ring plate. The side ring plate is bolted to the side wall of the connecting plate. The bottom ring plate is bolted to the top of the grafting plate.

3. The grafting device for shelf uprights according to claim 1, characterized in that, A through groove is provided at the center of one side of the support plate, and a fixing plate is fixedly connected to both ends of the support plate. The two fixing plates are respectively connected to the connecting plate and the grafting plate by bolts.

4. A grafting device for shelf uprights according to claim 2, characterized in that, Each of the two bottom ring plates has a mating plate fixedly connected to one side of each other, and each pair of adjacent mating plates is connected by a fixing screw.

5. A grafting device for shelf uprights according to claim 3, characterized in that, A number of reinforcing plates are provided on one side of the support plate. One end of the reinforcing plate is connected to the support plate through a vertical plate, and the other end is connected to the connecting plate through a vertical plate.

6. A grafting device for shelf uprights according to claim 5, characterized in that, The support plate is made of metal, and the positioning plate is fixedly connected to the top of the grafting plate with bolts.

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