A collapsible reusable heavy duty carton

Abstract

The utility model relates to the technical field of folding carton, and concretely is a kind of foldable and reusable heavy carton, including base, four side plates are fixedly installed on the top of base, the top of side plate is movably installed with cover plate, and multiple support plates for resisting vertical pressure are jointly inserted and installed between adjacent side plates, when the utility model is idle and folded, staff separates side plate, support plate is dispersed and inserted into slot, side plate is deflected to the middle part of base in turn, finally cover plate is covered on the top of support plate, all parts of carton are placed uniformly, not easy to lose, when assembling, required parts are not taken one by one, improve assembly efficiency, when stacking, the limiting block of lower carton is inserted into the limiting slot of upper carton, so that stacking is more stable, and gravity position is relatively uniform, each support plate is more uniform in stress, not easy to damage, side plate is folded and stored in the middle part of base, side plate is idle basically not stressed, safe folding frequency increases, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of folding cardboard box technology, specifically a foldable and reusable heavy-duty cardboard box. Background Technology

[0002] Heavy-duty foldable and reusable cardboard boxes are an excellent solution in modern logistics and warehousing that balances efficiency, economy, and environmental protection. These boxes differ from ordinary disposable cardboard boxes and are typically made of high-grammage, multi-layered, high-quality corrugated cardboard. Their core value lies in the design concept of "reusability." Through a clever folding structure, empty boxes can be quickly and neatly folded after recycling, greatly saving storage space and reverse logistics transportation costs. When needed for reuse, they can be quickly unfolded and restored to their sturdy box structure. This simple operation significantly improves the efficiency of logistics operations.

[0003] Some foldable cartons separate the base, side panels, and cover. The side panels are ring-shaped, and the length of the folded side panels is longer than the length of the base and cover. They should not be stacked together and need to be placed separately. During installation, they need to be taken out one by one for assembly, which is cumbersome. Moreover, scattered storage may cause the loss of parts. When the side panels are stacked after being folded, the side panels at the bottom are subjected to greater force, which may cause damage to their folded parts. The number of safe folds is reduced, which means the service life is shortened. Utility Model Content

[0004] To address the aforementioned issues, this application provides a foldable and reusable heavy-duty cardboard box, which solves the problem that when the side panels are stacked after being folded, the lower side panels are subjected to greater stress, which may cause damage to the folded parts, reducing the number of safe folds and thus shortening the service life.

[0005] A foldable and reusable heavy-duty cardboard box includes a base, four side panels fixedly installed on the top of the base, a cover plate movably installed on the top of the side panels, and multiple support plates for resisting vertical pressure are interlocked between adjacent side panels, with adjacent support plates connected by an interlocking method. The outer side of the base has multiple slots that can be inserted into the support plate; When disassembling the carton, all the support plates are inserted into the slots, the four side plates are folded toward the center of the base in sequence, and the cover plate covers the top of the support plates. The vertical pressure is borne by the support plates.

[0006] Preferably, an inner ring plate is fixedly installed on the inner side of the cover plate, and the inner ring plate is sleeved around the outermost support plate.

[0007] Preferably, the top of the support plate is provided with a connecting groove, and the bottom of the support plate is fixedly installed with a plug rod, which is plugged into the connecting groove.

[0008] Preferably, a connecting protrusion is fixedly installed on the inner side of the support plate, and multiple connecting holes are opened through the outer side of the side plate, with the connecting holes and the connecting protrusions being inserted and engaged.

[0009] Preferably, the bottom of the base has multiple transport slots extending through it.

[0010] Preferably, the base has multiple limiting grooves at its bottom, and multiple limiting blocks are fixedly installed on the top of the cover plate, with the limiting blocks and limiting grooves being inserted into each other.

[0011] The beneficial effects of this utility model are as follows: The present invention describes a foldable and reusable heavy-duty cardboard box. When not in use, the workers separate the side panels and support plates, insert the support plates into the slots, and then rotate the side panels toward the center of the base. Finally, the cover plate is placed on top of the support plate. All the parts of the cardboard box are placed in a unified manner, making them less likely to be lost. During assembly, there is no need to take out the required parts one by one, thus improving assembly efficiency. During stacking, the limiting blocks of the lower carton are inserted into the limiting slots of the upper carton, making the stacking more stable and the center of gravity more uniform. The force on each support plate is more even, making it less prone to damage. The side panels are folded and stored in the middle of the base. When the side panels are not in use, they are basically not under force, increasing the number of safe folds and extending the service life. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 A schematic diagram of the overall structure of a foldable and reusable heavy-duty cardboard box provided by this utility model; Figure 2 A schematic diagram of the bottom structure of a foldable and reusable heavy-duty cardboard box provided by this utility model; Figure 3 A schematic diagram of the base structure of a foldable and reusable heavy-duty cardboard box provided by this utility model; Figure 4 A schematic diagram of the support plate structure for a foldable and reusable heavy-duty cardboard box provided by this utility model; Figure 5 A schematic diagram of the side panel structure of a foldable and reusable heavy-duty cardboard box provided by this utility model.

[0014] In the picture: 1. Base; 2. Slot; 3. Side plate; 4. Connecting hole; 5. Support plate; 6. Connecting protrusion; 7. Insert rod; 8. Connecting groove; 9. Cover plate; 10. Inner ring plate; 11. Limiting block; 12. Limiting groove; 13. Transport groove. Detailed Implementation

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0016] like Figure 1 , Figure 4 As shown, this utility model embodiment provides a foldable and reusable heavy-duty cardboard box, including a base 1. Four side plates 3 are fixedly installed on the top of the base 1. The bottom of the side plates 3 is designed with bending marks in advance for reinforcement and to increase bending life. Various solutions can be implemented in the prior art, which will not be described in detail here. A cover plate 9 for sealing the top is movably installed on the top of the side plates 3. Multiple support plates 5 for resisting vertical pressure are inserted and installed between the adjacent side plates 3. The adjacent support plates 5 are connected by an insertion method. A connecting groove 8 is opened on the top of the support plate 5. An insertion rod 7 is fixedly installed on the bottom of the support plate 5. The insertion rod 7 is inserted and engaged with the connecting groove 8.

[0017] Furthermore, such as Figure 3 As shown, the base 1 has multiple slots 2 on its outer side that are inserted into the support plate 5. When the carton is disassembled, the support plate 5 is inserted into the slots 2 in a dispersed manner, and the four side plates 3 are folded toward the middle of the base 1 in sequence. The cover plate 9 covers the top of the support plate 5. The height of the support plate 5 is higher than the height of the folded side plates 3, so that the side plates 3 do not bear the pressure of the upper layer when stacked after being folded, increasing the number of safe repeated folding and extending the service life.

[0018] Furthermore, such as Figure 4 , Figure 5 As shown, a connecting protrusion 6 is fixedly installed on the inner side of the support plate 5, and a plurality of connecting holes 4 are opened through the outer side of the side plate 3. The connecting holes 4 are inserted and engaged with the connecting protrusion 6 to fix the side plate 3 and the support plate 5 together.

[0019] In this embodiment, during assembly, the working group members insert the support plate 5 into the innermost slot 2 in sequence, then connect the remaining support plates 5 end to end with the plug rod 7 and the connecting slot 8, then flip the side plate 3 to the vertical position in sequence, and use the connecting hole 4 and the connecting protrusion 6 to fix the side plate 3 and the support plate 5. After the goods are placed in, the cover plate 9 is placed on the top of the side plate 3. When not in use, the staff separates the side panel 3 and the support plate 5. The support plate 5 is inserted into the slot 2, and the side panel 3 is tilted toward the middle of the base 1 in sequence. Finally, the cover plate 9 is placed on top of the support plate 5, and the side panel 3 is folded and stored in the middle of the base 1. All the parts of the carton are placed in a unified manner, which makes them less likely to be lost. When assembling, there is no need to take out the required parts one by one, which improves the assembly efficiency. When the side panel 3 is not in use, it is basically not under stress, which increases the number of safe folds and extends its service life.

[0020] Furthermore, such as Figure 2 As shown, an inner ring plate 10 is fixedly installed on the inner side of the cover plate 9. After assembly, the inner ring plate 10 is fitted around the outermost support plate 5, making the cover plate 9 more stable. After folding, the cover plate 9 is fitted around the outermost support plate 5, making the cover plate 9 more stable.

[0021] Furthermore, such as Figure 1 , Figure 2 As shown, the bottom of the base 1 is provided with multiple limiting grooves 12, and the top of the cover plate 9 is fixedly installed with multiple limiting blocks 11. The limiting blocks 11 and the limiting grooves 12 are inserted and matched, so that the folded carton is stacked stably and neatly. The cartons filled with goods are relatively heavy and are generally not stacked.

[0022] In this embodiment, after folding and stacking, the limiting block 11 of the lower carton is inserted into the limiting groove 12 of the upper carton, making the stacking more stable, and the center of gravity is more uniform. The force on each support plate 5 is more even and less prone to damage.

[0023] Furthermore, such as Figure 2 As shown, the bottom of the base 1 has multiple transport slots 13 that extend through it, making it convenient for staff to use forklifts and other tools to move the cardboard boxes and the goods inside.

[0024] Specific working methods: During assembly, the work team members insert the support plate 5 into the innermost slot 2 in sequence, then connect the remaining support plates 5 end to end with the plug rod 7 and connecting slot 8, then flip the side plate 3 to vertical position in sequence, and use the connecting hole 4 and connecting protrusion 6 to fix the side plate 3 and support plate 5. After the goods are placed in, cover plate 9 is placed on top of side plate 3, and inner ring plate 10 is located outside the support plate 5.

[0025] When not in use, the staff separates the side panels 3 and support plates 5. The support plates 5 are inserted into the slots 2, and the side panels 3 are tilted toward the center of the base 1. Finally, the cover plate 9 is placed on top of the support plates 5. When stacking, the limiting blocks 11 of the lower carton are inserted into the limiting slots 12 of the upper carton, making the stacking more stable and the center of gravity more uniform. The support plates 5 are subjected to more even force and are not easily damaged. The side panels 3 are folded and stored in the center of the base 1. All the parts of the carton are placed in a unified manner and are not easily lost. When assembling, there is no need to take out the required parts one by one, which improves the assembly efficiency. When the side panels 3 are not in use, they are basically not subjected to force, increasing the number of safe folds and extending the service life.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A foldable and reusable heavy-duty cardboard box, comprising a base (1), four side panels (3) fixedly mounted on the top of the base (1), and a cover plate (9) movably mounted on the top of the side panels (3), characterized in that: The adjacent side plates (3) are connected by a common insertion of multiple support plates (5) for resisting vertical pressure, and the adjacent support plates (5) are connected by a insertion method. The base (1) has multiple slots (2) on its outer side that are inserted into the support plate (5); When the carton is disassembled, the support plate (5) is inserted into the slot (2) in a dispersed manner, the four side plates (3) are folded toward the middle of the base (1) in sequence, and the cover plate (9) covers the top of the support plate (5). The vertical pressure is borne by the support plate (5).

2. The foldable and reusable heavy-duty cardboard box according to claim 1, characterized in that: An inner ring plate (10) is fixedly installed on the inner side of the cover plate (9), and the inner ring plate (10) is sleeved on the outer periphery of the innermost support plate (5).

3. A foldable and reusable heavy-duty cardboard box according to claim 1, characterized in that: The support plate (5) has a connecting groove (8) at the top and a plug rod (7) is fixedly installed at the bottom of the support plate (5). The plug rod (7) is plugged into the connecting groove (8).

4. A foldable and reusable heavy-duty cardboard box according to claim 1, characterized in that: The support plate (5) has a connecting protrusion (6) fixedly installed on its inner side, and the side plate (3) has multiple connecting holes (4) through it on its outer side. The connecting holes (4) are inserted into the connecting protrusion (6).

5. A foldable and reusable heavy-duty cardboard box according to claim 1, characterized in that: The base (1) has multiple transport slots (13) extending through its bottom.

6. A foldable and reusable heavy-duty cardboard box according to claim 1, characterized in that: The base (1) has multiple limiting grooves (12) at the bottom, and multiple limiting blocks (11) are fixedly installed on the top of the cover plate (9). The limiting blocks (11) are inserted into the limiting grooves (12).

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