A compression-resistant, deformation-resistant carton

Abstract

The utility model provides a kind of compression-resistant deformation-preventing carton, it solves the problems such as collapse deformation when carton is stacked, it includes main box and top cover, the inside of main box is provided with the support column of vertical arrangement, the inside of main box bottom and top cover is provided with the reinforcing component of being fixed with the end of support column clamping, reinforcing structure is filled with compression-resistant structure between main box and top cover. Integrated three-dimensional support frame, corner support column is constructed using the structure of box itself, realizes super strong compression resistance and deformation resistance performance;Key connection point is reinforced and combined with compression-resistant core material, on the basis of ensuring that carton is light, environment-friendly, cost controllable, significantly improves its load capacity, durability, protective property and use convenience;Vertical reinforcing rib effectively prevents carton bulging deformation, ensures its overall structure stability.

Description

Technical Field

[0001] This utility model belongs to the field of packaging carton technology, specifically relating to a pressure-resistant and deformation-resistant carton. Background Technology

[0002] Corrugated cardboard boxes are three-dimensional boxes made from corrugated cardboard. Corrugated cardboard is a sturdy packaging material; the outer layer is called the face paper, the corrugated layer is called the core paper or corrugated paper, and the bottom layer is called the liner paper. However, existing packaging boxes generally suffer from insufficient compressive strength in actual use. On the one hand, some manufacturers use cardboard with lower basis weight or reduce the number of corrugated layers to reduce costs, resulting in inherently weak box structural strength. On the other hand, during transportation and storage, cardboard boxes are subjected to stacking pressure, compression, and other external forces. If the stacking height and load conditions are not fully considered in the design, collapse and deformation are likely to occur.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses an anti-deformation cardboard box [201520196401.9], which includes a cardboard box body. The cardboard box body is composed of an upper bottom surface, a lower bottom surface, and four side surfaces. The four right-angled vertical edges formed by the intersection of the four side surfaces are detachably connected to corner reinforcing strips. The corner reinforcing strips are provided with sliding strips arranged along their length direction. The cardboard box body is provided with sliding grooves that cooperate with the sliding strips. The corner reinforcing strips are slidably connected to the right-angled vertical edges. A locking mechanism is also provided between the corner reinforcing strips and the cardboard box body to lock or release the connection between them.

[0004] The above solution has solved the problem of the cardboard box's compressive strength to some extent, but it still has many shortcomings, such as collapse and deformation when stacked. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned problems by providing a reasonably designed, stackably stable, compression-resistant, and deformation-resistant cardboard box.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pressure-resistant and deformation-resistant cardboard box, comprising a main box body and a top cover, wherein a vertically arranged support column is provided on the inner side of the main box body, and a reinforcing component is provided at the bottom of the main box body and inside the top cover to be clamped and fixed to the end of the support column, and a pressure-resistant structure is filled between the reinforcing structure and the main box body and the top cover.

[0007] In the aforementioned pressure-resistant and deformation-resistant cardboard box, the main body and top cover are made of corrugated cardboard and covered with a waterproof layer.

[0008] In the aforementioned pressure-resistant and deformation-resistant cardboard box, the main body includes a bottom plate and side plates, and the supporting columns are located at the corners where the side plates meet.

[0009] In the aforementioned type of compression-resistant and deformation-resistant cardboard box, hot melt adhesive is used to fill the junction between the bottom plate and the side plate.

[0010] In the aforementioned pressure-resistant and deformation-resistant cardboard box, adjacent side panels have fixing strips that fit together and fold inwards. A fixing plate is fixedly attached between the inner sides of adjacent side panels. The fixing plate has a folded portion extending in the vertical direction. The inner corner of the folded portion contacts and presses against the end of the fixing strip. The folded portion of the fixing plate, the fixing strip, and the side panels constitute a supporting column.

[0011] In the aforementioned pressure-resistant and deformation-resistant cardboard box, the reinforcing component includes a reinforcing plate that is attached to the bottom of the main box or the lower end of the top cover. The reinforcing plate has several upward-protruding reinforcing ribs, which are attached and pressed tightly against the supporting columns.

[0012] In the aforementioned compression-resistant and deformation-resistant cardboard box, the compression-resistant structure includes a grid plate disposed inside the reinforcing ribs, the grid plate being a rectangular grid or a honeycomb grid.

[0013] In the aforementioned type of pressure-resistant and deformation-resistant cardboard box, a long, narrow handle groove is provided on the side of the main box body.

[0014] In the aforementioned type of pressure-resistant and deformation-resistant cardboard box, the corners of the top cover are covered with a protective layer.

[0015] In the aforementioned type of compression-resistant and deformation-resistant cardboard box, several reinforcing ribs extending vertically are provided on the inner side of the main box body.

[0016] Compared with existing technologies, the advantages of this utility model are as follows: the integrated three-dimensional support frame utilizes the box's own structure to construct corner support columns, achieving superior compression and deformation resistance; the key connection points are reinforced with compression-resistant core material, significantly improving the load-bearing capacity, durability, protection, and ease of use of the carton while ensuring it is lightweight, environmentally friendly, and cost-controllable; vertical reinforcing ribs effectively prevent the carton from bulging and deforming, ensuring the overall structural stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is another structural schematic diagram of the present invention;

[0019] Figure 3 This is another structural schematic diagram of the present invention;

[0020] Figure 4 This is a structural cross-sectional view of the present invention;

[0021] In the figure, the main body 1, bottom plate 11, side plate 12, fixing strip 13, fixing plate 14, folding part 15, top cover 2, reinforcing rib 3, supporting column 4, reinforcing component 5, reinforcing plate 51, reinforcing rib 52, pressure-resistant structure 6, and hand groove 7. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1-4 As shown, a compression-resistant and deformation-resistant cardboard box includes a main body 1 and a top cover 2. To improve vertical compression resistance and prevent creep deformation during stacking, vertically arranged support columns 4 are provided inside the main body 1. Reinforcing components 5, which are clamped and fixed to the ends of the support columns 4, are provided at the bottom of the main body 1 and inside the top cover 2, ensuring that the load can be effectively transferred to the bottom and top of the cardboard box through the support columns 4. A compression-resistant structure 6 is filled between the reinforcing structure, the main body 1, and the top cover 2 to absorb impact energy and disperse local pressure.

[0024] Specifically, the main body 1 and the top cover 2 are made of corrugated paper, usually using high grammage and high ring crush strength face paper and core paper, and preferably a multi-layer composite structure to improve overall rigidity, and the surface is covered with a waterproof layer, which is usually a PE film.

[0025] Specifically, the main body 1 includes a bottom plate 11 and side plates 12, with support columns 4 positioned at the corners where the side plates 12 meet. The support columns 4 are precisely positioned at the corners where the side plates 12 meet, which is the weakest point of the carton under vertical pressure. The support columns 4 can maximize the corner compression resistance at this location.

[0026] Furthermore, the junction between the base plate 11 and the side plate 12 is filled with hot melt adhesive. High-performance EVA or APAO type hot melt adhesive is selected, which has high initial tack, fast curing and excellent low temperature resistance, ensuring that the corner joint remains firm in humid or low temperature environments.

[0027] Furthermore, adjacent side panels 12 have mutually adhering and inwardly folded fixing strips 13, and fixing plates 14 are adhered and fixed between the inner sides of adjacent side panels 12. The fixing plates 14 have folded portions 15 extending in the vertical direction, and the inner corners of the folded portions 15 contact and press against the ends of the fixing strips 13 to form a stable self-locking structure. The folded portions 15 of the fixing plates 14, the fixing strips 13, and the side panels 12 constitute a support column 4, which is made of cardboard glued together to provide strong axial support.

[0028] In addition, the reinforcing component 5 includes a reinforcing plate 51 that fits into the bottom of the main housing 1 or the lower end of the top cover 2. The reinforcing plate 51 has several upward-protruding reinforcing ribs 52. The rib spacing is optimized according to the load requirements. The reinforcing ribs 52 fit and press tightly against the support column 4 to achieve precise load-bearing connection and effectively prevent the end of the support column 4 from buckling or displacing under pressure.

[0029] Meanwhile, the compression-resistant structure 6 includes a grid plate 53 disposed inside the reinforcing rib 52. The grid plate 53 adopts a rectangular grid or a honeycomb grid. The grid plate 53 is usually made of recycled paper or lightweight plastic, which has extremely high specific strength and excellent energy absorption characteristics, and can effectively fill the space and resist compression deformation in all directions.

[0030] As can be seen, the main body 1 has a long, narrow hand groove 7 on its side. Its edges are usually rounded or wrapped to prevent stress concentration and tearing, and it conforms to ergonomic design for easy gripping.

[0031] It is evident that the top cover has a protective layer covering the two corners. This protective layer is usually made of abrasion-resistant and scratch-resistant composite materials, such as coated kraft paper, laminated cardboard, or partially molded TPU / PVC coating, providing key protection for the most vulnerable edges and corners during handling and stacking.

[0032] Preferably, the inner side of the main body 1 is provided with a number of reinforcing ribs 3 extending in the vertical direction. These reinforcing ribs 3 can be formed by molding protrusions on the inner wall of the side panel 12 or by additionally pasting long strips of corrugated cardboard. The arrangement density is set according to the size of the carton and the load-bearing requirements, which significantly improves the bending stiffness and puncture resistance in the plane of the side panel 12, and prevents the side panel 12 from bulging and deforming under lateral impact or squeezing of internal items.

[0033] In summary, the principle of this embodiment is as follows: the corrugated cardboard support columns 4 are precisely positioned at the corners of the box, forming an axial main load-bearing channel; the support columns 4 are rigidly connected to the bottom and top cover 2 of the box via side plates 12 with reinforcing ribs 52, efficiently transmitting stacking pressure to the support columns 4 and preventing end buckling. At the junction of the side plates 12, a self-locking structure is formed by a fixing strip 13 and a fixing plate 14 with a folding part 15, which, together with the vertical reinforcing ribs 3 inside the box, suppresses the bulging deformation of the side plates.

[0034] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0035] Although this document frequently uses terms such as main body 1, bottom plate 11, side plate 12, fixing strip 13, fixing plate 14, folding part 15, top cover 2, reinforcing rib 3, supporting column 4, reinforcing component 5, reinforcing plate 51, reinforcing rib 52, compression-resistant structure 6, and hand groove 7, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A pressure-resistant and deformation-resistant cardboard box, comprising a main box body (1) and a top cover (2), wherein a vertically arranged support column (4) is provided on the inner side of the main box body (1), and a reinforcing component (5) is provided at the bottom of the main box body (1) and inside the top cover (2) to be clamped and fixed to the end of the support column (4), characterized in that, The reinforcing component (5) is filled with a pressure-resistant structure (6) between the main body (1) and the top cover (2).

2. The compression-resistant and deformation-resistant cardboard box according to claim 1, characterized in that, The main body (1) and the top cover (2) are made of corrugated paper and covered with a waterproof layer.

3. The compression-resistant and deformation-resistant cardboard box according to claim 1, characterized in that, The main body (1) includes a bottom plate (11) and a side plate (12), and the supporting column (4) is located at the corner where the side plate (12) meets.

4. A pressure-resistant and deformation-resistant cardboard box according to claim 3, characterized in that, The junction of the base plate (11) and the side plate (12) is filled with hot melt adhesive.

5. A pressure-resistant and deformation-resistant cardboard box according to claim 3, characterized in that, Adjacent side panels (12) have fixing strips (13) that fit together and fold inward. A fixing plate (14) is fixed between the inner sides of adjacent side panels (12). The fixing plate (14) has a folded part (15) that extends in the vertical direction. The inner corner of the folded part (15) contacts and presses against the end of the fixing strip (13). The folded part (15) of the fixing plate (14), the fixing strip (13), and the side panels (12) constitute a supporting column (4).

6. A pressure-resistant and deformation-resistant cardboard box according to claim 5, characterized in that, The reinforcing component (5) includes a reinforcing plate (51) that is attached to the bottom of the main body (1) or the lower end of the top cover (2). The reinforcing plate (51) has several upward-protruding reinforcing ribs (52), and the reinforcing ribs (52) are attached and pressed against the supporting column (4).

7. A pressure-resistant and deformation-resistant cardboard box according to claim 6, characterized in that, The compressive structure (6) includes a grid plate (53) disposed inside the reinforcing rib (52), wherein the grid plate (53) adopts a rectangular grid or a honeycomb grid.

8. A pressure-resistant and deformation-resistant cardboard box according to claim 1, characterized in that, The main box (1) has a long, narrow hand slot (7) on its side.

9. A pressure-resistant and deformation-resistant cardboard box according to claim 1, characterized in that, The top cover (2) is covered with a protective layer at its corners.

10. A pressure-resistant and deformation-resistant cardboard box according to claim 1, characterized in that, The inner side of the main box (1) is provided with several reinforcing ribs (3) extending in the vertical direction.

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