Bottom-reinforced packaging box

Abstract

This invention belongs to the field of packaging box technology, and particularly relates to a bottom-reinforced packaging box. The bottom plate has side plates at all four ends, each side plate has a wing plate connected to the adjacent side plate, and each side plate has a hole. A cover plate is connected to the movable end of the side plate away from the bottom plate. A reinforcing member is installed inside the box. By making the bottom of the packaging box a single piece, the traditional bottom of a cardboard box is formed by extensions of the front, back, left, and right side plates, increasing the strength of the bottom of the packaging box. The load-bearing section in the reinforcing member, in conjunction with the bottom plate, supports the contents, further increasing the strength of the bottom of the packaging box. When the bottom plate is subjected to force, it is transferred to the lower part of the side plates; when the load-bearing section is subjected to force, it is transferred to the upper part of the side plates through connecting sections and transition sections. The bottom plate, side plates, load-bearing section, connecting section, and transition section form a unified force-bearing structure, distributing the force on the bottom of the packaging box and increasing its strength.

Description

Technical Field

[0001] This invention belongs to the field of packaging box technology, and particularly relates to bottom-reinforced packaging boxes. Background Technology

[0002] Packaging boxes are primarily used to facilitate transportation, loading, unloading, and warehousing. Among them, cardboard boxes, such as corrugated cardboard boxes, are widely used in various product packaging fields due to their advantages such as ease of processing and easy product recycling.

[0003] However, the bottom of existing packaging boxes is generally formed by the combination of extensions of the front, back, left, and right side panels, which has the problem of poor bottom strength. When holding heavy items, there is a possibility that the items will fall off the bottom of the packaging box and be damaged.

[0004] Therefore, to address the above issues, a bottom-reinforced packaging box was designed. Summary of the Invention

[0005] This invention addresses the problem of poor bottom strength in existing packaging boxes by proposing the following technical solution: A bottom-reinforced packaging box includes a bottom plate, with side plates at each of the four ends of the bottom plate. Each side plate has a wing plate connected to the adjacent side plate. The side plate has a hole. A cover plate is connected to the movable end of the side plate away from the bottom plate. The side plate is folded over at the connection with the bottom plate and connected by the wing plate to form a box with an internal loading space. The cover plate is folded over at the connection with the side plate to form an upper cover covering the opening of the box. The interior of the enclosure is provided with a reinforcing member; the reinforcing member includes a load-bearing section, a connecting section and a transition section connected in sequence. The load-bearing section contacts the bottom plate, the connecting section contacts the side plate, and the transition section has a through hole and is horizontally mounted on the side plate. The bottom plate, side plate, load-bearing section, connecting section and transition section form a whole that bears the load.

[0006] As a preferred embodiment of the above technical solution, the first reinforcing member further includes a limiting section that is connected to the transition section and arranged parallel to the connecting section.

[0007] As a preferred embodiment of the above technical solution, a nut A is embedded in the limiting section, and a screw A is internally threaded to the nut A, with the screw A abutting against the side wall of the side plate.

[0008] As a preferred embodiment of the above technical solution, the connecting section includes a plate body one connected to the transition section, a plate body two connected to the load-bearing section, and a plate body three. A strip-shaped hole is provided on the plate body three. A screw C is connected to both the plate body one and the plate body two. The screw C passes through the same strip-shaped hole and is connected to a nut C.

[0009] As a preferred embodiment of the above technical solution, a reinforcing layer is provided on the inner side of the bottom plate and the side plate. The reinforcing layer located on the side plate is provided with a groove one, and the reinforcing layer located on the bottom plate is provided with a groove two. The groove one and the groove two are connected to form a whole. The load-bearing section is located inside the second groove, and the connecting section is located inside the first groove.

[0010] As a preferred embodiment of the above technical solution, a second reinforcing member is provided above the top cover. The second reinforcing member includes a horizontal section that spans the top cover. The two ends of the horizontal section extend longitudinally to form a longitudinal section parallel to the limiting section. A nut B is provided in the longitudinal section. The nut B and the nut A are threadedly connected to the same screw B. The bottom plate, side plate, cover plate, first reinforcing member, and second reinforcing member form a single force-bearing unit. Both screw A and screw B have disassembly grooves at their operating ends.

[0011] As a preferred embodiment of the above technical solution, the upper and lower ends of the nut B are connected to rods, and a second hole is opened on the longitudinal section. A third hole matching the rod is circumferentially provided in the second hole. The movable end of the rod is movably inserted into the third hole, and a spring is movably sleeved on a section of the rod outside the third hole.

[0012] As a preferred embodiment of the above technical solution, the movable end of the longitudinal section is connected to a positioning section, which extends below the limiting section. A bolt is threaded into a threaded hole at the movable end of the limiting section, and one end of the bolt abuts against the upper end face of the positioning section.

[0013] The beneficial effects of this invention are as follows: In the technical solution of this bottom-reinforced packaging box, 1. by setting the bottom of the packaging box as a single piece of bottom plate, the traditional situation in cardboard boxes where the bottom is formed by the combination of extension plates of the front, back, left and right side plates is changed, thereby increasing the strength of the bottom of the packaging box; 2. The load-bearing section in the reinforcing component, together with the base plate, supports the goods and increases the strength of the bottom of the packaging box; 3. When the base plate is subjected to force, it is transferred to the lower part of the side plate, and when the load-bearing section is subjected to force, it is transferred to the upper part of the side plate through the connecting section and transition section. The base plate, side plate, load-bearing section, connecting section and transition section form a whole for bearing force, which disperses the force on the bottom of the packaging box and increases the strength of the bottom; The bottom-reinforced packaging box improves the strength of the bottom of the packaging box by setting the base plate and reinforcing component, which solves the problem of poor bottom strength of packaging boxes in the prior art. Attached Figure Description

[0014] Figure 1 The diagram shown is a structural schematic of the bottom-reinforced packaging box in Example 1; Figure 2 What is shown is Figure 1 Enlarged schematic diagram of structure A in the middle; Figure 3 What is shown is Figure 1 Schematic diagram of the structure of the middle reinforcing component 1; Figure 4 The diagram shown is a structural schematic of the connecting section in the first reinforcing member; Figure 5 The diagram shown is a schematic representation of the box without a reinforcing layer in Embodiment 1. Figure 6 The diagram shown is a schematic diagram of the box with a reinforcing layer in Embodiment 1. Figure 7 The diagram shown is a structural schematic of the bottom-reinforced packaging box in Example 2; Figure 8 What is shown is Figure 7 Enlarged schematic diagram of the B-structure; Reference numerals: Base plate 11, Groove II 111, Side plate 12, Groove I 121, Hole I 122, Fin plate 13, Cover plate 14, Reinforcing layer 15, Reinforcing member I 20, Load-bearing section 21, Connecting section 22, Plate I 221, Plate II 222, Plate III 223, Strip hole 224, Screw C 225, Nut C 226, Transition section 23, Limiting section 24, Nut A 25, Screw A 26, Bolt 27, Reinforcing member II 30, Horizontal section 31, Longitudinal section 32, Hole III 33, Nut B 34, Screw B 35, Rod body 36, Spring 37, Positioning section 38. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the present invention will be described below in conjunction with the embodiments. The technical solution should be clearly and completely described.

[0016] Example 1

[0017] like Figure 1 , Figure 2 , Figure 3 As shown, the bottom reinforced packaging box includes a bottom plate 11, and side plates 12 are provided at the four ends of the bottom plate 11. Each side plate 12 is provided with a wing plate 13 connected to the adjacent side plate 12. The side plate 12 is provided with a hole 122. The movable end of the side plate 12 away from the bottom plate 11 is connected to a cover plate 14. The side plate 12 is folded at the connection with the bottom plate 11 and connected through the wing plate 13 to form a box with an internal loading space. The cover plate 14 is folded at the connection with the side plate 12 to form a top cover covering the opening end of the box. The interior of the enclosure is equipped with a reinforcing member 20. The reinforcing member 20 includes a load-bearing section 21, a connecting section 22, and a transition section 23 connected in sequence. The load-bearing section 21 contacts the bottom plate 11, the connecting section 22 contacts the side plate 12, and the transition section 23 passes through a hole 122 and is horizontally mounted on the side plate 12. The bottom plate 11, the side plate 12, the load-bearing section 21, the connecting section 22, and the transition section 23 form a single load-bearing unit.

[0018] In this bottom-reinforced packaging box technical solution, the side panel 12 is folded over at the connection point with the bottom panel 11 and connected by the wing plate 13 to form a box with an internal loading space. Then, the reinforcing member 20 is installed, the load-bearing section 21 contacts the bottom panel 11, the connecting section 22 contacts the side panel 12, and the transition section 23 passes through the hole 122 and is horizontally mounted on the side panel 12. When the item is placed in the box, the lower end of the item contacts the bottom panel 11 and the load-bearing section 21. The cover plate 14 is folded over at the connection point with the side panel 12 to form an upper cover covering the opening end of the box.

[0019] In this technical solution: 1. By setting the bottom of the packaging box as a single base plate 11, the traditional bottom of a cardboard box, which is formed by the combination of extensions of the front, back, left, and right side plates, is changed, thus increasing the strength of the bottom of the packaging box; 2. The load-bearing section 21 in the reinforcing member 20, together with the base plate 11, supports the items and increases the strength of the bottom of the packaging box; 3. When the base plate 11 is subjected to force, it is transferred to the lower part of the side plate 12, and when the load-bearing section 21 is subjected to force, it is transferred to the upper part of the side plate 12 through the connecting section 22 and the transition section 23. The base plate 11, side plate 12, load-bearing section 21, connecting section 22, and transition section 23 form a whole for bearing force, which disperses the force on the bottom of the packaging box and increases the strength of the bottom; The bottom-reinforced packaging box improves the strength of the bottom of the packaging box by setting the base plate 11 and the reinforcing member 20, thus solving the problem of poor bottom strength of packaging boxes in the prior art.

[0020] like Figure 2 , Figure 3 As shown, in order to improve the stability of the relative position of the reinforcing member 20 and the housing, the reinforcing member 20 also includes a limiting section 24 connected to the transition section 23 and arranged parallel to the connecting section 22. The transition section 23 is horizontally mounted on the upper end of the side plate 12, the connecting section 22 is located inside the side plate 12, and the limiting section 24 is located outside the side plate 12, thereby ensuring the stability of the left and right position of the reinforcing member 20 inside the housing and ensuring the stability of the force.

[0021] like Figure 2As shown, to further improve the stability of the relative position of the reinforcing member 20 and the housing, a nut A25 is embedded in the limiting section 24, and a screw A26 is threadedly connected inside the nut A25. The screw A26 abuts against the side wall of the side plate 12. After the reinforcing member 20 is placed in place inside the housing, the screw A26 and the nut A25 are threaded together until they abut against the side wall of the side plate 12, thereby fixing the relative position of the reinforcing member 20 and the housing. This further improves the stability of the reinforcing member 20 in the left and right positions inside the housing, and at the same time, ensures the stability of the reinforcing member 20 in the up and down positions inside the housing, thus ensuring stable stress.

[0022] like Figure 4 As shown, the connecting section 22 includes a first plate 221 connected to the transition section 23, a second plate 222 connected to the load-bearing section 21, and a third plate 223. A strip hole 224 is provided on the third plate 223. A screw C225 is connected to both the first plate 221 and the second plate 222. The screw C225 passes through the same strip hole 224 and is connected to a nut C226.

[0023] When installing the connecting section 22, the second plate 222 with the load-bearing section 21 is placed inside the box, the first plate 221 with the transition section 23 is placed on the side plate 12, the first through hole 122 of the transition section 23 is horizontally mounted on the upper end of the side plate 12, the third plate 223 is tightly attached to the first plate 221 and the second plate 222, the screw C225 passes through the strip hole 224, and the nut C226 is connected to the screw C225 to fix the relative position of the first plate 221, the second plate 222 and the third plate 223.

[0024] The connection section 22 is designed to adjust its overall length according to the height of the internal space of the box, ensuring that the load-bearing section 21 is in contact with the bottom plate 11 and that the load-bearing section 21 and the bottom plate 11 are evenly stressed, thereby ensuring the strength of the bottom. At the same time, the adjustable length of the connection section 22 can adapt to boxes of different heights and improve its adaptability.

[0025] like Figure 1 , Figure 6 As shown, to further improve the strength of the bottom of the packaging box, a reinforcing layer 15 is provided on the inner side of the bottom plate 11 and the side plate 12, and the reinforcing layer 15 on the bottom plate 11 and the side plate 12 is a whole, which transfers the bottom force to the side plate 12, further improving the bottom strength of the packaging box; in order to reduce the space occupied by the reinforcing part 20 inside the box and avoid the reinforcing part 20 protruding and contacting the items and causing damage to the items, the reinforcing layer 15 located at the side plate 12 is provided with a groove 121, and the reinforcing layer 15 located at the bottom plate 11 is provided with a groove 111. The groove 121 and the groove 111 are connected to form a whole; the load-bearing section 21 is located inside the groove 111, and the connecting section 22 is located inside the groove 121.

[0026] Example 2

[0027] Derived from Example 1, the difference from Example 1 is that, as Figure 7 , Figure 8 As shown, a second reinforcing member 30 is provided above the top cover. The second reinforcing member 30 includes a horizontal section 31 that spans the top cover. The two ends of the horizontal section 31 extend longitudinally to form a longitudinal section 32 that is parallel to the limiting section 24. A nut B34 is provided in the longitudinal section 32. The nut B34 and the nut A25 are threadedly connected to the same screw B35. The bottom plate 11, the side plate 12, the cover plate 14, the first reinforcing member 20 and the second reinforcing member 30 form a whole for bearing force. To facilitate the removal of screw A26 from nut A25, and to facilitate the removal of screw B35 from nut B34 and nut A25, both screw A26 and screw B35 are provided with disassembly grooves at their operating ends.

[0028] The reinforcement component 2 30 is set by folding the cover plate 14 from the connection with the side plate 12 to form an upper cover covering the opening end of the box body, placing the horizontal section 31 on top of the upper cover, and connecting the screw B35 with the nut B34 and the nut A25 to fix the relative positions of the reinforcement component 2 30, the reinforcement component 1 20, and the box body. The bottom of the packaging box is subjected to force, including the bottom plate 11, which is transmitted to the lower end of the side plate 12; the load-bearing section 21 is subjected to force, which is transmitted in sequence to the connecting section 22 and the transition section 23. The transition section 23 transmits the force to the upper end of the side plate 12 and the limiting section 24. The rear limiting section 24 transmits the force in sequence to the nut A25, the screw B35, the nut B34, the longitudinal section 32, the transverse section 31, and the cover plate 14. The bottom plate 11, the side plate 12, the cover plate 14, the first reinforcing member 20, and the second reinforcing member 30 form a whole that bears the force, which transmits and disperses the force on the bottom of the packaging box, further enhancing the strength of the bottom.

[0029] Meanwhile, the reinforcement component 2 30 can fix the position of the top cover, which can reduce the sealing operation of the packaging box and save packaging time.

[0030] like Figure 8 As shown, to avoid a height difference between nuts A25 and B34 during installation, which would prevent screw B35 from connecting both simultaneously, nut B34 is movably mounted on the longitudinal section 32. Specifically, rods 36 are connected to both the upper and lower ends of nut B34. A second hole is provided on the longitudinal section 32, and a third hole 33 matching the rod 36 is provided circumferentially through the second hole. The movable end of the rod 36 is movably inserted into the third hole 33, and a spring 37 is movably sleeved on the section of the rod 36 outside the third hole 33.

[0031] like Figure 8As shown, to avoid a gap between the horizontal section 31 and the top cover, a movable nut B34 is used to adjust the installation position between the second reinforcement 30 and the first reinforcement 20. Specifically, the movable end of the vertical section 32 is connected to a positioning section 38, which extends to the bottom of the limiting section 24. A bolt 27 is threaded into a threaded hole at the movable end of the limiting section 24, and one end of the bolt 27 abuts against the upper end face of the positioning section 38.

[0032] Because the load-bearing section 21 is covered by an object, its position is fixed. By rotating the bolt 27, the distance between the longitudinal section 32 and the positioning section 38 is increased, thereby reducing the distance between the transverse section 31 and the top cover, until the transverse section 31 is in close contact with the top cover. This solves the problem of gaps between the transverse section 31 and the top cover, which prevents proper force transmission. The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it.

Claims

1. A bottom-reinforced packaging box, including a bottom plate (11), characterized in that, The bottom plate (11) is provided with side plates (12) at all four ends. Each side plate (12) is provided with a wing plate (13) connected to the adjacent side plate (12). The side plate (12) is provided with a hole (122). The movable end of the side plate (12) away from the bottom plate (11) is connected to a cover plate (14). The side plate (12) is folded at the connection with the bottom plate (11) and connected by the wing plate (13) to form a box with an internal loading space. The cover plate (14) is folded at the connection with the side plate (12) to form a top cover covering the opening end of the box. The interior of the box is provided with a reinforcing member (20); the reinforcing member (20) includes a load-bearing section (21), a connecting section (22) and a transition section (23) connected in sequence. The load-bearing section (21) contacts the bottom plate (11), the connecting section (22) contacts the side plate (12), and the transition section (23) has a through hole (122) and is horizontally mounted on the side plate (12). The bottom plate (11), the side plate (12), the load-bearing section (21), the connecting section (22) and the transition section (23) form a whole for bearing force. The first reinforcing member (20) also includes a limiting section (24) that is connected to the transition section (23) and is arranged parallel to the connecting section (22); The limiting section (24) is fitted with a nut A (25), and the nut A (25) is internally threaded with a screw A (26), which abuts against the side wall of the side plate (12). A second reinforcing member (30) is provided above the top cover. The second reinforcing member (30) includes a horizontal section (31) that spans the top cover. The two ends of the horizontal section (31) extend longitudinally to form a vertical section (32) parallel to the limiting section (24). A nut B (34) is provided in the vertical section (32). The nut B (34) and the nut A (25) are threaded together with the same screw B (35). The bottom plate (11), side plate (12), cover plate (14), first reinforcing member (20) and second reinforcing member (30) form a force-bearing whole. Both screw A (26) and screw B (35) have disassembly grooves at their operating ends.

2. The bottom-reinforced packaging box according to claim 1, characterized in that, The connecting section (22) includes a plate body one (221) connected to the transition section (23), a plate body two (222) connected to the load-bearing section (21), and a plate body three (223). A strip hole (224) is provided on the plate body three (223). A screw C (225) is connected to both the plate body one (221) and the plate body two (222). The screw C (225) passes through the same strip hole (224) and is connected to a nut C (226).

3. The bottom-reinforced packaging box according to claim 1, characterized in that, A reinforcing layer (15) is provided on the inner side of the base plate (11) and the side plate (12). The reinforcing layer (15) located at the side plate (12) is provided with a first groove (121), and the reinforcing layer (15) located at the base plate (11) is provided with a second groove (111). The first groove (121) and the second groove (111) are connected to form a whole. The load-bearing section (21) is located inside the second groove (111), and the connecting section (22) is located inside the first groove (121).

4. The bottom-reinforced packaging box according to claim 1, characterized in that, The upper and lower ends of the nut B (34) are connected to rods (36). A second hole is provided on the longitudinal section (32). A third hole (33) matching the rod (36) is provided circumferentially through the second hole. The movable end of the rod (36) is movably inserted into the third hole (33). A spring (37) is movably sleeved on a section of the rod (36) outside the third hole (33).

5. The bottom-reinforced packaging box according to claim 4, characterized in that, The movable end of the longitudinal section (32) is connected to a positioning section (38), which extends to the lower part of the limiting section (24). A bolt (27) is threaded into a threaded hole at the movable end of the limiting section (24), and one end of the bolt (27) abuts against the upper surface of the positioning section (38).

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