Folding corrugated carton capable of being quickly disassembled, assembled and reused

By introducing connecting components such as slide bars, rotating blocks, and elastic locking blocks into corrugated cardboard boxes, the problems of time-consuming and easily damaged disassembly and assembly of corrugated cardboard boxes are solved, enabling rapid disassembly and assembly and recycling, and reducing storage space requirements.

CN223736487UActive Publication Date: 2025-12-30WUHAN GREAT WALL SHENGTAI PACKAGING & PRINTING CO LTD
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Patent Information

Application Number
CN202520290252.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-12-30
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

The existing process of disassembling and assembling corrugated cardboard boxes is time-consuming and easily damages the connecting structure, resulting in insufficient recycling.

Method used

The design incorporates connecting components including a slide bar, a rotating block, and a connecting plate. Quick assembly and disassembly are achieved by pressing down with a lower pressure plate, and the corrugated carton remains flat when folded thanks to elastic blocks and a clamping structure. The triangular crease design on the bottom side plate prevents misalignment.

Benefits of technology

It enables rapid disassembly and recyclability of corrugated cardboard boxes, reducing disassembly and assembly time, lowering the risk of damage to connecting structures, and saving storage space.

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Abstract

The utility model relates to the technical field of corrugated cartons, in particular to a folding corrugated carton capable of being disassembled and assembled quickly and used repeatedly, which comprises a bottom plate and a top plate, a lower pressing plate is arranged on the bottom plate, a placing groove is formed in one side of the lower pressing plate in a penetrating manner, a connecting assembly is arranged on the lower pressing plate, and the connecting assembly comprises a sliding rod arranged in the placing groove. The two lower pressing plates are connected through the connecting assembly, when a corrugated carton needs to be assembled, the periphery of the corrugated carton needs to be opened through downward pressing of the lower pressing plates, the lower pressing plates are arranged on the lower pressing plates, the lower pressing plates are arranged on the lower pressing plates, the lower pressing plates are arranged on the lower pressing plates, and the lower pressing plates are arranged on the lower pressing plates in a sliding mode. The rotating blocks are arranged on the sliding rods, and the length of the connecting plate is consistent with the sum of the lengths of the placing grooves in the two lower pressing plates. According to the corrugated carton, the bottom plate is arranged on the bottom side plate to support the periphery of the corrugated carton, the bottom plate and the bottom side plate are matched to prevent the corrugated carton filled with goods from falling apart when the corrugated carton is carried, the corrugated carton can be recycled, and meanwhile the corrugated carton does not occupy too large space when being stored.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, specifically a foldable corrugated cardboard box that is quick to assemble and reuse. Background Technology

[0002] Corrugated cardboard boxes are one of the most widely used packaging products, consistently ranking first in usage among all packaging materials. Including calcium-plastic corrugated cardboard boxes, for over half a century, corrugated cardboard boxes have gradually replaced wooden crates and other transport packaging containers due to their superior performance and good processing properties, becoming the mainstay of transport packaging.

[0003] For example, CN211944109U discloses a foldable corrugated cardboard box. This foldable corrugated cardboard box facilitates the connection of the front and rear side panels with the bottom side panel. The top panel is quickly fixed by the adhesive connection of the first and second connecting pieces. When stacked, the two sets of corrugated cardboard boxes are interlocked to avoid misalignment and can be stacked quickly and neatly.

[0004] When using the above devices, users need to snap the corrugated cardboard boxes together. This method of installation can easily cause the connecting grooves and connecting blocks to become misaligned when the corrugated cardboard boxes are disassembled later. This not only wastes time, but also easily damages the connecting grooves or connecting blocks when separating the snaps, making the corrugated cardboard boxes unusable and unable to be fully recycled. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a foldable corrugated cardboard box that is quick to assemble and reusable. It features the ability to disassemble the corrugated cardboard box in one go, during which the corrugated cardboard boxes are flattened together, and the corrugated cardboard box can be recycled.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a foldable corrugated cardboard box that is quick to assemble and reuse, comprising a bottom plate and a top plate. A lower pressure plate is provided on the bottom plate, and a placement groove is provided through one side of the lower pressure plate. A connecting component is provided on the lower pressure plate to connect two lower pressure plates.

[0009] The connecting assembly includes a slide rod disposed in the placement groove, a rotating block disposed on the slide rod, and a connecting plate disposed at the other end of the rotating block, wherein the length of the connecting plate is the same as the sum of the lengths of the placement grooves on the two lower pressure plates.

[0010] Preferably, the bottom side plates are symmetrically arranged on the bottom plate, and the bottom side plates have triangular indentations protruding outwards. A first clamping plate is arranged on the side of the bottom side plate near the bottom plate.

[0011] Preferably, the first clamping plate has a sandwich space and a square slot, and a second clamping plate is provided on the side of the bottom side plate near the first clamping plate, and the width of the second clamping plate is the same as that of the first clamping plate.

[0012] Preferably, the lower pressure plate is provided with symmetrical sliding grooves, and the sliding grooves are slidably connected to the slide rod.

[0013] Preferably, the lower pressure plate is provided with an elastic block on the side near the bottom plate, and the elastic block is arranged in a conical shape with a smaller upper part and a larger lower part.

[0014] Preferably, the base plate has symmetrical through-holes with mating grooves, and the mating grooves are engaged with the elastic locking blocks. The base plate has symmetrical splicing grooves on the side away from the lower pressure plate, and the splicing grooves are spliced ​​with the first clamping plate and the second clamping plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model connects two lower pressure plates through a connecting component. When it is necessary to assemble the corrugated cardboard box, the lower pressure plates open up the four sides of the corrugated cardboard box by pressing down, providing support for the four sides of the corrugated cardboard box. The cooperation between the bottom plate and the bottom side plate can strengthen the bottom of the corrugated cardboard box and prevent it from falling apart when the corrugated cardboard box is filled with goods.

[0017] 2. When disassembling a corrugated cardboard box, simply squeeze the two sides of the bottom plate to tilt the lower plate, and the corrugated cardboard box can be disassembled instantly, forming a flat and fitted state. Not only can it be reused, but it also does not take up too much space when storing these disassembled corrugated cardboard boxes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall device of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall side cross-sectional structure of the device of this utility model.

[0020] Figure 3 This is a schematic diagram of a partial explosion of the device of this utility model.

[0021] Figure 4 This is an enlarged schematic diagram of the connection components of the device of this utility model.

[0022] Figure 5 This is an enlarged schematic diagram of the connection structure between the base plate and the lower pressure plate of the device of this utility model.

[0023] In the diagram: 1. Base plate; 11. Mating groove; 12. Splicing groove; 2. Top plate; 3. Bottom side plate; 31. First clamping plate; 32. Second clamping plate; 4. Lower pressure plate; 41. Placement groove; 42. Sliding groove; 43. Elastic locking block; 5. Connecting assembly; 51. Sliding rod; 52. Rotating block; 53. Connecting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1 to 4 This is the first embodiment of the present utility model, which provides a technical solution: a foldable corrugated cardboard box that is quick to assemble and reuse, including a bottom plate 1 and a top plate 2. The bottom plate 1 is openable. When the lower pressure plate 4 is pressed down, the bottom plate 1 can be spliced ​​by the bottom side plate 3 to prevent the bottom plate 1 from becoming loose. The bottom plate 1 is provided with a lower pressure plate 4, which is used to press down and support the four sides. At the same time, the lower pressure plate 4, the bottom plate 1, and the bottom side plate 3 are fixed together by insertion and splicing. A placement groove 41 is opened through one side of the lower pressure plate 4, and a connecting component 5 is provided on the lower pressure plate 4. The connecting component 5 is used to connect two lower pressure plates 4.

[0027] The connecting assembly 5 includes a slide rod 51 disposed in the placement groove 41, the slide rod 51 being used to slide in the sliding groove 42, a rotating block 52 disposed on the slide rod 51, the rotating block 52 being used to connect the connecting plate 53, and a connecting plate 53 disposed at the other end of the rotating block 52, the length of the connecting plate 53 being the same as the sum of the lengths of the placement grooves 41 on the two lower pressure plates 4, the connecting plate 53 being used to connect the two lower pressure plates 4.

[0028] The bottom plate 1 is symmetrically provided with bottom side plates 3, and the bottom side plates 3 have triangular indentations protruding outward. When the corrugated carton is disassembled, the bottom side plates 3 will only fold along the position of the triangular indentations because of the outward protrusion of the triangular indentations. This avoids the bottom side plates 3 from folding in different positions when the user applies too much force, which would affect subsequent use. The bottom side plates 3 are provided with a first clamping plate 31 on the side close to the bottom plate 1.

[0029] The first clamping plate 31 has a sandwich space and a square slot. The first clamping plate 31 has a gap in the middle, which fits with the second clamping plate 32. When the corrugated carton is folded, the two can be smoothly inserted together without taking up space. The bottom side plate 3 is provided with the second clamping plate 32 on the side close to the first clamping plate 31. The width of the second clamping plate 32 is the same as that of the first clamping plate 31. When the lengths of the second clamping plate 32 and the first clamping plate 31 are the same, it can avoid the inconsistency in length between the two clamping plates when the corrugated carton is folded, which would prevent the corrugated carton from being folded completely. At the same time, the first clamping plate 31 and the second clamping plate 32 with the same length can provide sufficient support for the bottom plate 1.

[0030] During use, when assembling and placing goods in the corrugated cardboard box, the lower pressure plate 4 inside the corrugated cardboard box is pressed down. Under the pressure of the lower pressure plate 4, the bottom side plate 3 can be opened. At the same time, the sliding rod 51 connected to the lower pressure plate 4 moves the connecting plate 53 into the placement groove 41 on the lower pressure plate 4 through the rotating block 52. After the two lower pressure plates 4 are completely attached, the connecting plate 53 can fill the gap in the placement groove 41, preventing small items from falling into the placement groove 41 when placing them. At the same time, the lower pressure plate 4 presents a flat plane for easy placement of goods. When it is necessary to disassemble the corrugated cardboard box, simply press the side of the corrugated cardboard box perpendicular to the bottom side plate 3, and the entire corrugated cardboard box can be deformed into a flat state, which is convenient for subsequent placement and organization. The corrugated cardboard box can also be recycled.

[0031] Example 2

[0032] Please see Figures 1 to 5 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0033] The lower pressure plate 4 is symmetrically provided with sliding grooves 42, and the sliding grooves 42 are slidably connected to the slide rod 51. The sliding grooves 42 are used to limit the movement of the slide rod 51 and prevent the slide rod 51 from moving arbitrarily.

[0034] An elastic locking block 43 is provided on the side of the lower pressure plate 4 near the bottom plate 1. The elastic locking block 43 is a cone shape with a smaller upper part and a larger lower part. During the pressing process of the lower pressure plate 4, the elastic locking block 43 can be engaged with the mating groove 11. In the engaged state, the two are locked. The greater the force of the lower pressure plate 4, the more firmly the elastic locking block 43 is engaged.

[0035] A mating groove 11 is symmetrically provided through the bottom plate 1, and the mating groove 11 is engaged with the elastic locking block 43. A splicing groove 12 is symmetrically provided on the side of the bottom plate 1 away from the lower pressure plate 4, and the splicing groove 12 is spliced ​​with the first clamping plate 31 and the second clamping plate 32. The splicing groove 12 is interconnected with the mating groove 11, and is used to splice the bottom plate 1 and the bottom side plate 3 together under the action of the first clamping plate 31 and the second clamping plate 32, so as to prevent the bottom plate 1 from suddenly opening and causing the goods inside the corrugated carton to fall out.

[0036] During use, after the lower pressure plate 4 is completely flattened, the elastic locking block 43 on the lower pressure plate 4 will engage inside the mating groove 11, locking the lower pressure plate 4 and the bottom plate 1. At the same time, the elastic locking block 43 also engages with the grooves on the first clamping plate 31 and the second clamping plate 32, thus forming a locked state between the bottom plate 1, the bottom side plate 3 and the lower pressure plate 4. When subjected to the weight pressure from the goods inside the corrugated carton, the bottom plate 1 can partially relieve the force through the locked state, preventing the corrugated carton from being unable to support the goods and causing it to fall apart. When there are no goods inside the corrugated carton subjected to pressure from the side, the entire corrugated carton can be instantly folded together under the continuous deflection of the angle between the bottom plate 1 and the lower pressure plate 4, completing the disassembly of the corrugated carton.

[0037] The remaining structure is the same as that in Example 1.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable corrugated carton for quick disassembly and reuse, comprising a bottom panel (1) and a top panel (2), characterized in that: The bottom plate (1) is provided with a lower pressing plate (4), one side of the lower pressing plate (4) is provided with a placing groove (41), and the lower pressing plate (4) is provided with a connecting assembly (5) for connecting two lower pressing plates (4); The connecting assembly (5) comprises a sliding rod (51) arranged in the placing groove (41), a rotating block (52) arranged on the sliding rod (51), and a connecting plate (53) arranged at the other end of the rotating block (52), and the length of the connecting plate (53) is consistent with the sum of the lengths of the two placing grooves (41) on the lower pressing plate (4).

2. The quick detachable and reusable folding corrugated carton according to claim 1, wherein: The bottom plate (1) is provided with a bottom side plate (3) symmetrically, and the bottom side plate (3) has a triangular indentation outwardly protruding, and the bottom side plate (3) is provided with a first clamping plate (31) close to one side of the bottom plate (1).

3. The quick detachable and reusable folding corrugated carton according to claim 2, wherein: The first clamping plate (31) has a clamping space and is provided with a square notch, and the bottom side plate (3) is provided with a second clamping plate (32) close to one side of the first clamping plate (31), and the width of the second clamping plate (32) is consistent with that of the first clamping plate (31).

4. The quick detachable and reusable folding corrugated carton according to claim 1, wherein: The lower pressing plate (4) is symmetrically provided with a sliding groove (42), and the sliding groove (42) is in sliding connection with the sliding rod (51).

5. The quick detachable and reusable folding corrugated carton according to claim 3, wherein: The lower pressing plate (4) is provided with an elastic clamping block (43) close to one side of the bottom plate (1), and the elastic clamping block (43) is arranged in a taper shape with the upper part being small and the lower part being large.

6. The quick detachable and reusable folding corrugated carton according to claim 5, wherein: The bottom plate (1) is symmetrically provided with a matching groove (11), and the matching groove (11) is in clamping connection with the elastic clamping block (43), and the bottom plate (1) is symmetrically provided with a splicing groove (12) away from the lower pressing plate (4), and the splicing groove (12) is spliced with the first clamping plate (31) and the second clamping plate (32).

Citation Information

Patent Citations

  • Folding corrugated carton

    CN211944109U