Welded box body

Abstract

The utility model discloses a welding type box body, which comprises a shell, the shell comprises a box cover and a box body; the box body comprises a plurality of box body splicing pieces, and the adjacent box body splicing pieces are welded to form an integrated structure; the box cover comprises a plurality of box cover splicing pieces, and the adjacent box cover splicing pieces are welded to form an integrated structure. And the modular box body and box cover splicing design is adopted, so that the boxing requirements of different sizes can be flexibly met, and the universality and the application range of the product are improved. Meanwhile, due to the splicing structure, the production efficiency can be improved, and the product delivery cycle can be shortened. The splicing pieces are connected in a buckling and welding combined mode, on one hand, firmness and reliability of the overall structure are guaranteed, and on the other hand, the rapid and flexible assembling process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bags and cases, in particular to a welded box body. Background Art

[0002] Compared with metal materials, plastics have advantages such as light weight and strong corrosion resistance, and are widely used in some special application fields. But at the same time, the strength and rigidity of plastic materials are usually relatively low, which brings certain challenges to the box structure design.

[0003] In order to overcome the structural performance disadvantages of plastic boxes, the industry generally adopts the production method of injection molding. Through precise mold design and injection molding process control, the complex molding of plastic components can be achieved, and the dimensional accuracy and appearance quality of the product can be guaranteed. This injection molding process can not only improve production efficiency, but also better play the molding advantages of plastic materials.

[0004] For example, patent application number CN2023108741415 discloses a plastic box and a preparation method thereof, including: box side panels, a box bottom panel, connecting parts, bending and clearance grooves, bending windows and reinforcing ribs. The box side panels are installed on all sides of the box bottom panel. The box side panels are provided with several bending areas, and the center lines of the bending areas are perpendicular to the plane where the box bottom panel is located. Bending and clearance grooves and bending windows are provided on the bending areas of the box side panels. The bending windows are arranged inside the box side panels, and the bending windows penetrate the box side panels in an axial direction. The bending and clearance grooves are connected to the bending windows. The bending and clearance grooves and the bending windows are both used for bending and clearance of the box side panels. Adjacent box side panels are connected at the bending areas by connecting parts.

[0005] The above scheme realizes an integrated molding design through a reasonable design of the box, and combines the corresponding processing methods to achieve simple processing, mass production, improve the sealing of the box, and increase durability and safety. However, in this scheme, faced with customized boxes of various specifications, each specification of the box needs to be designed separately and according to the design dimensions, the box processing is still carried out through traditional processes such as cutting and bending. Obviously, the production efficiency and production cost are not ideal, and there is room for optimization. Summary of the invention

[0006] In view of the problems mentioned in the background technology that the box production in the prior art is still manufactured according to prefabricated molds, with high customization costs, and the traditional rotational molding process has low production efficiency and high production costs, the utility model provides a welded box, which gives full play to the advantages of modular design, not only meets the flexibility of packaging requirements of different sizes, but also greatly improves production efficiency.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A welded box, characterized in that it comprises: a shell; the shell comprises a box cover and a box; the box comprises a plurality of box body assemblies, and adjacent box body assemblies are welded to form an integrated structure; the box cover comprises a plurality of box cover assemblies, and adjacent box cover assemblies are welded to form an integrated structure.

[0009] The overall working principle of the welded box is to assemble the box body and the box cover from multiple splicing pieces respectively, and connect the adjacent splicing pieces by welding to form an integrated box structure. This modular and splicable design can meet the user's packaging needs for equipment or materials of different sizes, and has strong versatility and adaptability. First of all, the splicable structural design can improve the versatility and flexibility of the box. Compared with the traditional integral box, this solution allows users to freely combine and splice the size of the box body and the box cover according to actual needs, greatly enhancing the scope of application of the product. This is crucial to meet the packaging needs of equipment or materials of different specifications. Secondly, the welding connection method can ensure the overall structural strength and waterproof performance of the box. Compared with simple snap-on or gluing methods, welding can achieve a more solid and reliable connection, effectively preventing problems such as leakage or deformation of the box during use, thereby improving the service life and reliability of the product. In addition, the modular design of the solution is also conducive to improving production efficiency. By dividing the box body and the box cover into multiple splicing parts, manufacturers can use standard processes such as injection molding and welding to mass-produce splicing parts of various sizes, and then assemble them according to customer needs. This flexible production model can significantly shorten the product delivery cycle and enhance market competitiveness. The welded box solution gives full play to the advantages of modular design and welding connection, realizes the overall improvement of the box's versatility, waterproofness and production efficiency, and reflects a strong sense of technological innovation. Compared with traditional integral boxes, this application has obvious advantages in meeting diversified packaging needs, improving product performance and shortening delivery cycles.

[0010] Preferably, the box includes a bottom layer and a middle layer; the bottom layer is welded to the middle layer. The welded box of this solution adopts a layered design of a bottom layer and a middle layer in the overall structure. The two layers are vertically distributed along the height direction of the box, rather than horizontally distributed in the thickness direction of the box wall. This layered design can increase the overall height of the box and provide more effective loading space for the internal cavity. Compared with a single-layer box, the layered design can increase the volume of the box to meet the packing requirements of larger-sized equipment or materials. In addition, the layered setting of the bottom layer and the middle layer can also optimize the center of gravity distribution of the box and improve its stability and impact resistance. This is crucial to ensure the safety of the packed materials during transportation. The welded box gives full play to the advantages of the multi-layer design in increasing the effective volume, improving the overall strength, and optimizing the center of gravity distribution.

[0011] Furthermore, the bottom box body splicing parts include corner pieces and side pieces; any bottom side on the bottom layer includes at least a corner piece and a side piece; the corner piece and the side piece on the bottom side are provided with inner recesses correspondingly, and each inner recess on the same bottom side constitutes a bottom side reinforcement rib. On the basis of adopting the bottom layer and middle layer layered structure, the welded box further optimizes the design of the bottom splicing parts, and adopts the splicing method of corner pieces and side pieces, which can better meet the needs of boxes of different sizes. Compared with the traditional integral bottom plate, this modular design allows users to freely combine and splice side pieces of different lengths according to actual packing requirements. This flexibility helps to improve the versatility of the box. Secondly, the inner recesses are provided on the corner pieces and side pieces to form reinforcement ribs along the bottom side direction, which can significantly improve the overall rigidity and bearing capacity of the box. These reinforcement ribs can effectively disperse and transmit external forces, avoid local deformation or fracture, and thus improve the overall mechanical properties. It is worth noting that the design scheme also cleverly utilizes the matching relationship between the bottom splicing parts. By correspondingly setting the inner concave parts between the corner pieces and the side pieces, continuous bottom edge reinforcement ribs can be formed. This reinforcement rib design based on the coordination between the splicing pieces can not only improve production efficiency, but also help to achieve uniform reinforcement of the overall structure of the box.

[0012] Furthermore, the bottom layer also includes a box bottom piece with other box splicing parts welded on all four sides, and the box bottom piece is also provided with an inner recess, and the inner recess of the box bottom piece cooperates with the inner recess on the adjacent bottom edge to form a middle reinforcement rib parallel to the bottom edge reinforcement rib. The middle reinforcement rib can effectively enhance the bending resistance of the bottom layer. Compared with the design that relies solely on the bottom edge reinforcement ribs, the middle reinforcement ribs can form an array reinforcement structure, which further improves the overall rigidity and bearing capacity of the bottom layer. This is crucial for withstanding external heavy loads and impacts. Secondly, the provision of the middle reinforcement rib is also conducive to optimizing the overall mechanical behavior of the box. By cooperating with the bottom edge reinforcement ribs, a more uniform stress distribution can be formed to avoid the occurrence of local stress concentration. This overall performance optimization helps to improve the service life and reliability of the box.

[0013] Furthermore, the middle layer of the box body splicing pieces include side edge pieces and side wall pieces arranged between adjacent side edge pieces, and an outer convex portion is formed between adjacent box body splicing pieces in the middle layer; an outer convex portion is also formed between adjacent corner pieces and side length pieces on the bottom edge, and the outer convex portion of the middle layer corresponds to the outer convex portion of the bottom layer to form a number of side reinforcement ribs distributed longitudinally along the circumference of the box body. The combined design of the side edge pieces and the side wall pieces can effectively enhance the overall rigidity of the middle layer. Compared with a single flat plate structure, this middle layer form with concave and convex changes can better resist external pressure and impact, and improve the overall bearing capacity of the box body. The outer convex portion formed between the middle layer splicing piece and the bottom layer splicing piece can constitute the side reinforcement ribs distributed along the circumference of the box body. These reinforcement ribs can not only effectively enhance the anti-deformation performance of the box body, but also form a synergistic effect with the bottom edge reinforcement ribs and the middle reinforcement ribs to achieve the optimization of the overall mechanical properties. The design of this middle layer splicing piece also reflects a strong structural integration capability. By cleverly utilizing the matching relationship between the splicing parts, the integrated arrangement of multiple reinforcing ribs is realized, which not only improves production efficiency, but also enhances the overall structural coordination of the box. The welded box further highlights its technical advantages in improving overall rigidity and coordination in the design of the middle-layer splicing parts and their matching with the bottom-layer components.

[0014] Preferably, a convex portion is provided on one side of the corner piece. The corner piece is not equal in length along the edges of both sides of the corner, but one side is longer, and the convex portion is provided on the longer side, and the corner pieces at the four corners are centrally symmetrically arranged. Through this non-mirror symmetrical corner piece, the strength of the spliced ​​structure of the bottom layer is effectively enhanced. The weld seam on the longer side of the corner part is not aligned with the weld seam of the adjacent box splicing piece, which can avoid the occurrence of stress concentration.

[0015] Preferably, the box cover is consistent with the bottom structure, and the longitudinal height of the box cover splicing piece of the box cover is less than the longitudinal height of the box body splicing piece of the box body. Setting the height of the box cover slightly lower than the box body is beneficial to improving the overall space utilization efficiency. Compared with the design in which the two heights are exactly the same, this slightly different size arrangement can reduce the overall volume while ensuring the effective volume inside the box body, and better meet the needs of compact packaging. The optimized design of the box cover structure is also beneficial to enhancing its load-bearing capacity. Although the height of the box cover is slightly lower than the box body, its interior still adopts the design of corner pieces, side pieces and reinforcing ribs similar to the bottom layer. This structural coordination enables the box cover to have the same rigidity and deformation resistance as the bottom layer of the box body, effectively avoiding the hidden dangers of deformation or damage due to insufficient load, and improving the structural consistency of the box cover and the box body, while simultaneously improving the appearance of the shell.

[0016] Furthermore, the box cover includes top side reinforcement ribs corresponding to the bottom side reinforcement ribs; the box cover includes top middle reinforcement ribs corresponding to the middle reinforcement ribs. The corresponding arrangement of the top side reinforcement ribs and the bottom side reinforcement ribs can form a vertical reinforcement structure that runs through the entire height of the box. This upper and lower corresponding design can effectively enhance the overall bending and impact resistance of the box and improve the overall mechanical strength of the product. The cooperation between the top middle reinforcement rib and the bottom middle reinforcement rib can form a longitudinal reinforcement rib network of the box. This array-type reinforcement rib design can better coordinate the transfer and distribution of stress inside the box and optimize the overall mechanical properties. In addition, by arranging these reinforcement ribs on the box cover, not only the rigidity of the box cover itself can be enhanced, but also the overall coordination of the entire box structure can be further improved. This unified optimization of the upper and lower structures is conducive to achieving all-round performance improvement of the box.

[0017] Preferably, the outer side of the corner piece on the bottom edge is coated with a first strengthening layer, and the thickness of the first strengthening layer is greater than the thickness of the corner piece. Based on the aforementioned optimization of the box body and the box cover structure, the welded box in this scheme also adds an additional strengthening layer design at certain key parts. Specifically, the outer side of the corner piece of the bottom layer is coated with a first strengthening layer with a thickness greater than the corner piece itself, and the outer side of the side edge piece of the middle layer is also provided with a second strengthening layer with a thickness greater than the side edge piece itself. Corner pieces and side edge pieces are the load-bearing core parts of the box body and often bear a large stress concentration. By adding additional strengthening layers to these parts, the local deformation resistance and impact resistance can be effectively improved, and the risk of defects can be reduced. The thickness of the strengthening layer is designed to be greater than the corresponding splicing piece itself, which means that the overall rigidity and bearing capacity of the box body can be further enhanced under the premise of ensuring overall lightweight. This thickness matching design can effectively exert the mechanical properties of the material. It is worth mentioning that the design of this strengthening layer also reflects a strong systematic thinking. The applicant specifically identified the key components and carried out local strengthening in a targeted manner, which not only improved the performance of a single component, but also ensured the coordination of the entire box structure and the optimization of the overall performance.

[0018] Preferably, the outer side of the side edge pieces on the middle layer is covered with a second reinforcement layer, and the thickness of the second reinforcement layer is greater than that of the side edge pieces. As the core component of the middle layer structure, the side edge pieces are prone to generate large stress concentration when subjected to external forces. Adding a second reinforcement layer can effectively improve the deformation resistance and impact resistance of the side edge pieces and reduce the risk of local damage. Compared with the first reinforcement layer on the outer side of the bottom corner piece, the second reinforcement layer of the middle layer side edge pieces can further enhance the overall deformation resistance of the box. Through the synergistic effect of the two reinforcement layers, the external forces can be better dissipated and transmitted, thereby improving the overall rigidity of the box.

[0019] Adding a strengthening layer outside the middle side edge piece corresponds to the aforementioned strengthening design on the bottom corner piece and side length piece. This unified optimization of the upper and lower structures is conducive to achieving a comprehensive improvement in the performance of each key part of the box, reflecting a strong systematic design concept.

[0020] The design of a reinforcement layer with a thickness greater than that of the main body also fully utilizes the material properties, further enhancing the overall load-bearing capacity of the box while ensuring overall lightweight.

[0021] Preferably, adjacent box body splicing pieces / box cover splicing pieces are buckled and welded to form. The buckle design can realize the rapid assembly and connection between splicing pieces, and improve the production efficiency. Compared with traditional bolts or riveting methods, this buckle structure is simpler and more efficient, which is conducive to the realization of modular free assembly. Welding connection based on buckle connection can ensure the firm combination between splicing pieces. Welding technology can realize a reliable integrated structure, effectively prevent the box from separating or leaking during use, and greatly improve the overall performance and service life of the product. The connection method combining buckle connection and welding gives full play to the advantages of the two processes. The former ensures the flexibility and efficiency of assembly, while the latter ensures the integrity and strength of the structure, reflecting a strong process integration capability. The innovation of this connection technology also provides strong support for the modular design of the welded box. Through the rapid buckle connection and welding of adjacent splicing pieces, the box body and the box cover can be freely combined to meet the requirements of packing of different sizes. In general, the innovative design of the welded box in the splicing connection link not only improves the production efficiency, but also ensures the firmness and reliability of the overall structure. This technical choice of combining buckle connection and welding fully reflects the applicant's innovative consciousness in process optimization and structural design, and provides a strong guarantee for the practical application of this product.

[0022] Therefore, the utility model has the following beneficial effects:

[0023] (1) The modular box body and box cover splicing design can flexibly meet the packaging requirements of different sizes, improving the versatility and applicability of the product. At the same time, this splicing structure is also conducive to improving production efficiency and shortening product delivery cycle.

[0024] (2) By setting parallel distributed reinforcing ribs on the bottom layer, middle layer and cover, the rigidity and load-bearing capacity of the overall structure are effectively enhanced, and the performance of the box in terms of load-bearing and anti-deformation is improved. This overall performance optimization ensures the reliability and service life of the product in actual use.

[0025] (3) Adding a strengthening layer design on the outside of key components can not only effectively improve the local impact resistance and deformation resistance, but also further enhance the overall bearing strength of the box while ensuring overall lightweight. This targeted strengthening measure fully utilizes the material properties and reflects a strong sense of structural optimization.

[0026] (4) The connection method of the splicing parts is a combination of buckling and welding, which ensures the firmness and reliability of the overall structure on the one hand, and realizes a fast and flexible assembly process on the other hand. This process innovation is conducive to improving production efficiency and provides strong support for modular design. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] Figure 2 It is a structural schematic diagram of the bottom layer in the utility model.

[0029] Figure 3 It is a schematic diagram of the connection between the bottom layer and the middle layer in the utility model.

[0030] Figure 4 It is a structural schematic diagram of the box body in the utility model.

[0031] Figure 5 It is a structural schematic diagram of the box cover in the utility model.

[0032] Figure 6 yes Figure 2 Schematic diagram of the structure of the middle corner fitting.

[0033] Figure 7 yes Figure 2 Schematic diagram of the structure of the middle side long piece.

[0034] Shell 100, box cover 1, top edge reinforcement rib 11, top middle reinforcement rib 12, cover top piece 13, box body 2, bottom layer 21, middle layer 22, corner piece 23, side length piece 24, inner recess 25, bottom edge reinforcement rib 26, box bottom piece 27, middle reinforcement rib 28, side edge piece 31, side wall piece 32, outer protrusion 33, side reinforcement rib 34, first reinforcement layer 4, second reinforcement layer 5, buckle assembly 6, hanging ring 7. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0036] Example 1

[0037] like Figure 1As shown, a welded box body comprises: a shell 100; the shell comprises a box cover 1 and a box body 2; the box body comprises a plurality of box body splicing pieces, and adjacent box body splicing pieces are welded to form an integrated structure; the box cover comprises a plurality of box cover splicing pieces, and adjacent box cover splicing pieces are welded to form an integrated structure. The box body comprises a bottom layer 21 and a middle layer 22; the bottom layer and the middle layer are welded and connected. The welded box body of this solution adopts a layered design of a bottom layer and a middle layer in the overall structure, and the two-layer structure is vertically distributed along the height direction of the box body, rather than horizontally distributed in the thickness direction of the box wall.

[0038] The overall working principle of the welded box is to assemble the box body and the box cover from multiple splicing pieces respectively, and connect the adjacent splicing pieces by welding to form an integrated box structure. This modular and splicable design can meet the user's packaging needs for equipment or materials of different sizes, and has strong versatility and adaptability. First of all, the splicable structural design can improve the versatility and flexibility of the box. Compared with the traditional integral box, this solution allows users to freely combine and splice the size of the box body and the box cover according to actual needs, greatly enhancing the scope of application of the product. This is crucial to meet the packaging needs of equipment or materials of different specifications. Secondly, the welding connection method can ensure the overall structural strength and waterproof performance of the box. Compared with simple snap-on or gluing methods, welding can achieve a more solid and reliable connection, effectively preventing problems such as leakage or deformation of the box during use, thereby improving the service life and reliability of the product. In addition, the modular design of the solution is also conducive to improving production efficiency. By dividing the box body and the box cover into multiple splicing parts, manufacturers can use standard processes such as injection molding and welding to mass-produce splicing parts of various sizes, and then assemble them according to customer needs. This flexible production model can significantly shorten the product delivery cycle and enhance market competitiveness. The welded box solution gives full play to the advantages of modular design and welding connection, realizes the overall improvement of the box's versatility, waterproofness and production efficiency, and reflects a strong sense of technological innovation. Compared with traditional integral boxes, this application has obvious advantages in meeting diversified packaging needs, improving product performance and shortening delivery cycles.

[0039] The layered design can increase the overall height of the box and provide more effective loading space for the internal cavity. Compared with a single-layer box, the layered design can increase the volume of the box to meet the packing needs of larger equipment or materials. In addition, the layered setting of the bottom and middle layers can also optimize the center of gravity distribution of the box, improve its stability and impact resistance. This is crucial to ensure the safety of the packed materials during transportation. The welded box fully utilizes the advantages of the multi-layer design in increasing the effective volume, improving the overall strength and optimizing the center of gravity distribution.

[0040] like Figure 2 As shown, the box body splicing parts of the bottom layer include corner pieces 23 and side pieces 24; any bottom edge on the bottom layer includes at least a corner piece and a side piece; Figure 6 , 7 As shown, the corner pieces and the side pieces on the bottom edge are provided with inner recesses 25 correspondingly, and the inner recesses on the same bottom edge form bottom edge reinforcement ribs 26. The bottom layer also includes a box bottom piece 27 with other box body splicing pieces welded on all four sides, and the box bottom piece is also provided with inner recesses 25, and the inner recesses of the box bottom piece cooperate with the inner recesses on the adjacent bottom edges to form middle reinforcement ribs 28 parallel to the bottom edge reinforcement ribs. The box body splicing pieces in the middle layer include side edge pieces 31 and side wall pieces 32 provided between adjacent side edge pieces, and outer protrusions 33 are formed between adjacent box body splicing pieces in the middle layer; outer protrusions are also formed between adjacent corner pieces and side pieces on the bottom edge, and the outer protrusions of the middle layer and the outer protrusions of the bottom layer correspond to form a number of side reinforcement ribs 34 distributed longitudinally along the circumference of the box body.

[0041] In addition, if Figure 5 As shown, the box cover is consistent with the bottom structure, and the longitudinal height of the box cover assembly of the box cover is less than the longitudinal height of the box body assembly of the box body. The box cover includes a top edge reinforcement rib 11 arranged corresponding to the bottom edge reinforcement rib; the box cover includes a top middle reinforcement rib 12 arranged corresponding to the middle reinforcement rib. The corresponding arrangement of the top edge reinforcement rib and the bottom edge reinforcement rib can form a vertical reinforcement structure that runs through the entire height of the box body.

[0042] The height of the box cover is slightly lower than that of the box body, which is beneficial to improving the overall space utilization efficiency. Adjacent box body splicing pieces / box cover splicing pieces are buckled and welded to each other. The buckle design can realize the rapid assembly and connection between the splicing pieces, thereby improving production efficiency. The box cover also includes corner pieces welded to the side length pieces, and four cover top pieces 13 are arranged in the middle of the box cover. Compared with traditional bolts or riveting methods, this buckle structure is simpler and more efficient, which is conducive to realizing modular free assembly. Welding connection based on buckling can ensure a firm connection between the splicing pieces. Welding technology can realize a reliable integrated structure, effectively prevent the box body from separating or leaking during use, and greatly improve the overall performance and service life of the product. The connection method that combines buckling and welding gives full play to the advantages of the two processes.

[0043] The welded box is assembled by using modular structures that can be spliced ​​into the box body and the box cover, so as to flexibly meet the packing requirements of different sizes. Specifically, the box body is composed of four bottom edges and four bottom pieces, and the middle layer is composed of a series of vertically arranged side edges and side wall pieces; the structural design of the box cover is similar to that of the bottom layer, but the size is slightly smaller. Adjacent splicing pieces are firmly connected by buckling and welding to form an overall box structure.

[0044] Based on this modular design, the scheme has carried out careful structural optimization in various key parts. First, the four bottom edges of the bottom layer are composed of corner pieces and side pieces, and there are concave parts between them to form parallel bottom edge reinforcement ribs. At the same time, the concave parts of the four bottom pieces cooperate with the bottom edge reinforcement ribs to form the middle reinforcement ribs perpendicular to the bottom edge. This staggered reinforcement network can effectively enhance the overall rigidity and load-bearing capacity of the bottom layer.

[0045] like Figure 3 As shown in Figure 4, in the middle layer, the structure composed of the side edge pieces and the side wall pieces can also form side reinforcement ribs distributed longitudinally along the circumference of the box body. These reinforcement ribs can not only improve the overall anti-deformation performance of the middle layer, but also work together with the reinforcement ribs of the bottom layer to further enhance the mechanical strength of the entire box structure.

[0046] As for the box cover, its structural design is basically the same as the bottom layer, and it also adopts the optimized layout of corner pieces, side pieces and reinforcement ribs. However, the overall height of the box cover is slightly lower than the box body, which not only improves the space utilization efficiency, but also ensures that the box cover has the same rigidity as the bottom layer of the box body. At the same time, the box cover is also equipped with special top edge reinforcement ribs and top middle reinforcement ribs, which form a synergistic effect with the corresponding structure of the bottom layer, further improving the overall load-bearing capacity.

[0047] In this embodiment, the assembly process of the box is relatively simple and flexible. Before the formal assembly, the user can freely select the bottom corner pieces and side pieces of appropriate sizes according to actual needs, and quickly assemble them into the bottom frame by buckling. This modular design not only meets the flexibility of packing needs of different sizes, but also greatly improves the assembly efficiency. Subsequently, the four pre-prepared bottom pieces are placed in sequence and fixed to the bottom frame by ultrasonic welding to form a complete bottom structure. This connection method using ultrasonic welding technology can not only achieve a fast and stable combination, but also minimize the heat-affected zone to ensure that the performance of the box material is not damaged.

[0048] After the bottom layer is built, the middle layer can be assembled. The side edges and side wall pieces of the middle layer also use a combination of buckle connection and ultrasonic welding, which makes the installation process very fast. It should be noted that during the buckle connection of the side edges and side wall pieces, it is necessary to ensure that they can fit tightly to ensure the overall structural stability of the middle layer. After the middle layer is fully in place, it is fixedly connected to the bottom layer by ultrasonic welding to form the main structure of the box. This reliable welding between the upper and lower layers not only ensures the integrity of the overall structure, but also lays the foundation for subsequent performance optimization.

[0049] The installation of the box cover also follows similar steps. The modular design of corner pieces and side pieces is also adopted, and users can freely choose the appropriate cover assembly according to the size of the box. The box cover and the box body can be quickly assembled by snap-on and ultrasonic welding. In this process, it is necessary to pay special attention to the height of the box cover should be slightly lower than the box body to ensure the overall space utilization efficiency. At the same time, the top edge reinforcement ribs and top middle reinforcement ribs on the box cover must also ensure that they can perfectly match the corresponding structure of the bottom layer to play a synergistic role.

[0050] This solution gives full play to the advantages of modular design. Through the flexible division and combination of the box body and the box cover structure, it not only meets the flexibility of packing requirements of different sizes, but also greatly improves production efficiency. This pre-assembled and reusable design concept is conducive to reducing resource consumption and achieving more environmentally friendly and sustainable development. At the same time, modular design also provides a basis for subsequent optimization and transformation. For example, you can try to use splicing parts of different geometric shapes to better adapt to mechanical properties.

[0051] Secondly, in terms of structural optimization, by setting parallel reinforcement ribs on the bottom layer, middle layer and cover, the rigidity and load-bearing capacity of the overall structure are effectively enhanced, and the performance of the box in terms of load-bearing and anti-deformation is improved. In particular, the practice of adding a reinforcement layer on the outside of key components can not only effectively improve the local impact resistance and anti-deformation ability, but also further enhance the overall load-bearing strength of the box while ensuring overall lightweight.

[0052] In addition, in terms of process innovation, the connection method combining buckle connection and ultrasonic welding is adopted, which ensures the firmness and reliability of the overall structure on the one hand, and realizes a fast and flexible assembly process on the other hand. Specifically, buckle connection technology can realize the rapid assembly and connection between splicing parts, improving production efficiency. Compared with traditional methods such as bolts or rivets, this buckle connection structure is simpler and more efficient, which is conducive to modular free assembly. On the basis of buckle connection, ultrasonic welding is used for connection, which can not only ensure the firm connection at the joint and eliminate possible gaps, but also realize reliable metallurgical bonding at the molecular level. This innovative process combining buckle connection and welding gives full play to the advantages of the two connection methods, which not only ensures the overall performance of the product, but also greatly improves production efficiency.

[0053] At the same time, ultrasonic welding technology also plays other key roles in the manufacturing of this solution. For example, in the process of adding a reinforcement layer to the outside of a key component, ultrasonic welding can ensure a reliable bond between the reinforcement layer and the main component to avoid falling off or dislocation. At the same time, this high-frequency vibration welding can also minimize the heat-affected zone and ensure that the mechanical properties of the reinforcement layer itself are not damaged. This ultrasonic welding process that takes into account both connection strength and material properties provides strong support for the realization of local reinforcement design. The outstanding performance of this welded box solution in process innovation not only improves production efficiency, but also provides a strong guarantee for the overall performance optimization of the product.

[0054] In this embodiment, a buckle assembly 6 is provided in the area where the box body and the box cover are close to each other, and the shell is sealed by buckling each other. The box body is also provided with a plurality of lifting rings 7 along the circumference to facilitate the user to move the box body.

[0055] Example 2

[0056] In this embodiment, the outer side of the corner piece on the bottom edge is covered with a first strengthening layer 4, the thickness of the first strengthening layer is greater than the thickness of the corner piece. The outer side of the side edge piece on the middle layer is covered with a second strengthening layer 5, the thickness of the second strengthening layer is greater than the thickness of the side edge piece.

[0057] On the basis of the aforementioned optimization of the box body and box cover structure, the welded box body in this solution also adds an additional reinforcement layer design in certain key parts. Specifically, the outer side of the bottom corner piece is coated with a first reinforcement layer with a thickness greater than the corner piece itself, and the outer side of the middle side edge piece is also provided with a second reinforcement layer with a thickness greater than the side edge piece itself. Corner pieces and side edge pieces, as the load-bearing core parts of the box body, often bear a large stress concentration. By adding additional reinforcement layers to these parts, the local deformation resistance and impact resistance can be effectively improved, and the risk of defects can be reduced. The thickness of the reinforcement layer is designed to be greater than the corresponding splicing piece itself, which means that while ensuring the overall lightweight, the overall rigidity and load-bearing capacity of the box body can be further enhanced. This thickness matching design can effectively exert the mechanical properties of the material. It is worth mentioning that the design of this reinforcement layer also reflects a strong systematic thinking. The applicant specifically identified the key components and carried out local reinforcement in a targeted manner, which not only improved the performance of a single component, but also ensured the coordination of the entire box structure and the optimization of the overall performance.

[0058] As the core component of the middle structure, the side edge is prone to generate large stress concentration when subjected to external forces. Adding a second reinforcement layer can effectively improve the deformation and impact resistance of the side edge and reduce the risk of local damage. Compared with the first reinforcement layer on the outside of the bottom corner piece, the second reinforcement layer of the middle side edge can further enhance the overall deformation resistance of the box. Through the synergistic effect of the two reinforcement layers, the external force can be better dissipated and transmitted, and the overall rigidity of the box can be improved.

[0059] Adding a strengthening layer outside the middle side edge piece corresponds to the aforementioned strengthening design on the bottom corner piece and side length piece. This unified optimization of the upper and lower structures is conducive to achieving a comprehensive improvement in the performance of each key part of the box, reflecting a strong systematic design concept.

[0060] The design of a reinforcement layer with a thickness greater than that of the main body also fully utilizes the material properties, further enhancing the overall load-bearing capacity of the box while ensuring overall lightweight. This local reinforcement approach can effectively improve the deformation and impact resistance of these stress concentration areas and maximize the mechanical properties of the material.

[0061] After the box body and the box cover are fully assembled, the welded box body is basically formed. However, in order to further enhance its overall load-bearing capacity, the last key step is to add a reinforcement layer at the key position. Taking the corner pieces and side edge pieces as examples, it is necessary to weld the first reinforcement layer 4 and the second reinforcement layer 5, which are thicker than the main body, on their outer sides respectively. This local reinforcement method can not only improve the deformation resistance of the stress concentration area, but also further improve the overall mechanical strength of the box body while ensuring the overall lightweight. In this process, ultrasonic welding technology once again played a key role.

[0062] Example 3

[0063] Different from Example 1, in this example, different optimization ideas are considered. For example, on the basis of retaining the modular design, the geometric shape of the splicing pieces can be further optimized to better adapt to the mechanical characteristics; or further innovation can be made in the layout of the reinforcing ribs, and a more clever staggered distribution method can be adopted to further enhance the overall structural strength.

Claims

1. A welded box, characterized in that: include: case; The housing comprises a box cover and a box body; The box body comprises a plurality of box body assembling pieces, and adjacent box body assembling pieces are buckled and welded to form an integrated structure; The box cover comprises a plurality of box cover assembling pieces, and adjacent box cover assembling pieces are buckled and welded to form an integrated structure.

2. A welded box according to claim 1, characterized in that: The box body comprises a bottom layer and a middle layer distributed along the height direction; the bottom layer is welded to the middle layer.

3. A welded box according to claim 2, characterized in that: The box body splicing parts of the bottom layer include corner pieces and side pieces; any bottom side on the bottom layer includes at least a corner piece and a side piece; the corner piece and the side piece on the bottom side are correspondingly provided with inner recesses, and the inner recesses on the same bottom side constitute bottom side reinforcement ribs.

4. A welded box according to claim 3, characterized in that: The bottom layer also includes a box bottom piece with box body splicing pieces welded on all four sides, and the box bottom piece is also provided with an inner concave portion, which cooperates with the inner concave portion on the adjacent bottom edge to form a middle reinforcement rib parallel to the bottom edge reinforcement rib.

5. A welded box according to claim 4, characterized in that: The middle layer of the box body splicing pieces includes side edge pieces and side wall pieces arranged between adjacent side edge pieces, and an outer convex portion is formed between adjacent box body splicing pieces in the middle layer; an outer convex portion is also formed between adjacent corner pieces and side length pieces on the bottom edge, and the outer convex portion of the middle layer corresponds to the outer convex portion of the bottom layer to form a plurality of side reinforcing ribs distributed longitudinally along the circumference of the box body.

6. A welded box according to claim 3, 4 or 5, characterized in that: One side of the corner piece is provided with an outer protrusion.

7. A welded box according to claim 2, 3, 4 or 5, characterized in that: The box cover is consistent with the bottom structure; the longitudinal height of the box cover assembly piece of the box cover is smaller than the longitudinal height of the box body assembly piece of the box body.

8. A welded box according to claim 3, characterized in that: The box cover includes a top edge reinforcement rib arranged corresponding to the bottom edge reinforcement rib; the box cover includes a top middle reinforcement rib arranged corresponding to the middle reinforcement rib.

9. A welded box according to claim 5, characterized in that: The outer side of the corner piece on the bottom edge is covered with a first strengthening layer, and the thickness of the first strengthening layer is greater than the thickness of the corner piece.

10. A welded box according to claim 5, characterized in that: The outer side of the side edge pieces on the middle layer is covered with a second strengthening layer, and the thickness of the second strengthening layer is greater than the thickness of the side edge pieces.

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