Corrugated paper packaging box with enhanced stacking structure

Abstract

The utility model discloses a corrugated paper packing box with a reinforced stacking structure, which relates to the field of packing products and comprises a box body and a box cover, the box body is a containing cavity with an open top defined by a front end plate, a rear end plate, a bottom plate and two side walls, and the box cover is rotatably connected to the edge of the open top of the box body. Inserting pieces are symmetrically arranged on the two sides of the top of the box body, inserting holes are formed in the positions, corresponding to the inserting pieces, of the two sides of the top of the box cover, the inserting pieces are configured to be inserted into the corresponding inserting holes when the box cover is closed, and after the inserting pieces are inserted into the inserting holes, the ends of the inserting pieces penetrate through the inserting holes and are exposed out of the outer surface of the box cover. The end portions of the inserting pieces of the upper-layer packaging box penetrate through the inserting holes of the lower-layer box cover and then are inserted into the positioning holes of the lower-layer bottom plate, an embedded structure in the vertical direction is formed, transverse deviation and longitudinal shaking of the packaging box during stacking are effectively limited, and collapse accidents caused by transportation jolt or uneven stacking are avoided.

Description

Technical Field

[0001] This utility model relates to the field of packaging products, and in particular to a corrugated cardboard box with a reinforced stacking structure. Background Technology

[0002] Corrugated cardboard boxes are standardized transport and storage containers made from corrugated cardboard through processes such as die-cutting, creasing, folding, and gluing. Current corrugated cardboard boxes typically rely on simple planar contact or tape wrapping for layer connection, lacking a rigid interlocking mechanism. In high-level stacking or heavy-load scenarios, the weight of the upper box concentrates on the top surface of the lower box, causing the top of the lower box to dent and deform, and even triggering a chain reaction of collapses.

[0003] Traditional corrugated cardboard boxes are mostly made of a single layer of cardboard bent into shape. Under the vibration of transportation or the pressure of manual stacking, the side walls are prone to wrinkles, bulges or even tears, which can cause damage to the goods inside. Utility Model Content

[0004] The purpose of this invention is to provide a corrugated cardboard packaging box with an enhanced stacking structure, which solves the problems of traditional corrugated cardboard boxes being prone to collapse when stacked at high levels and to deformation of the side walls under pressure.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A corrugated cardboard packaging box with an enhanced stacking structure includes a box body and a box lid. The box body is formed by a front end plate, a rear end plate, a bottom plate, and two side walls, creating an open-top receiving chamber. The box lid is rotatably connected to the edge of the open top of the box body. Symmetrically arranged insert tabs are provided on both sides of the top of the box body. Insertion holes are provided on both sides of the top of the box lid, corresponding to the positions of the insert tabs. The insert tabs are configured to be inserted into the corresponding insertion holes when the box lid is closed. After the insert tabs are inserted into the insertion holes, their ends penetrate the insertion holes and are exposed on the outer surface of the box lid. Positioning holes are symmetrically provided on both sides of the bottom of the bottom plate of the box body. The positioning holes are configured to allow the ends of the insert tabs exposed on the outer surface of the box lid in the upper layer of the packaging box to be inserted into the positioning holes in the lower layer of the packaging box when multiple packaging boxes are stacked.

[0006] Preferably, the top edges of the two side walls of the box are respectively connected to inner panels that bend toward the inner side of the box's receiving cavity. The inner panels are arranged parallel to the side walls, and a double-layer corrugated cardboard structure is formed between the side walls and the inner panels, which improves the side walls' resistance to lateral compression and prevents the side walls from deforming due to cargo shifting or external impact during transportation.

[0007] Preferably, both sides of the front plate and both sides of the rear plate are provided with glue plates that are bent vertically toward the inner side of the box cavity. The glue plates are inserted into the interlayer gap formed between the side wall and the inner plate, and both sides of the glue plates are bonded and fixed to the side wall and the inner plate respectively. The bonding method makes the processing more convenient.

[0008] Preferably, the two side walls of the box are provided with waist-shaped holes, which serve as gripping points for manual handling, making it easier to lift the box with both hands and improving handling efficiency.

[0009] Preferably, the bottom edge of the lid, except for the side that is rotatably connected to the top of the box, has a vertically bent lip on the other three sides. The lip can effectively block dust, moisture or foreign objects from entering the box and protect the goods from contamination.

[0010] Preferably, the bottom edge of the lid on the corresponding side of the front panel of the box body is connected to an upwardly bent strip. The top of the lid is symmetrically provided with strip holes near the strip. The top of the strip is symmetrically provided with tongues. The tongues slide into the corresponding strip holes. The cooperation between the tongues and the strip holes facilitates the bending and assembly of the lid.

[0011] Preferably, the edge of the cover on the corresponding side of the side wall of the box body is connected to a vertically bent tongue, and the tongue slides into the interlayer formed between the cover and the strip on the corresponding side.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. This utility model uses the end of the insert piece of the upper packaging box to penetrate the insert hole of the lower box cover and then insert it into the positioning hole of the lower bottom plate to form a vertically fitted structure, which effectively limits the lateral displacement and longitudinal shaking of the packaging box during stacking and avoids collapse accidents caused by transportation bumps or uneven stacking.

[0014] 2. This utility model forms a double-layer reinforced structure through the side wall and inner plate, which improves the compressive strength and deformation resistance of the side wall. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the bottom structure of the box body of this utility model.

[0017] Figure 3 This is a schematic diagram of the box lid after it is opened according to this utility model.

[0018] Figure 4 This is a schematic diagram of the unfolded form of this utility model.

[0019] Reference numerals: 1. Box body; 11. Front panel; 12. Rear panel; 13. Bottom panel; 14. Side wall; 15. Insertion piece; 16. Positioning hole; 17. Inner panel; 18. Glue plate; 19. Waist-shaped hole; 2. Box lid; 21. Insertion hole; 22. Lid rim; 23. Strip piece; 24. Strip hole; 25. Insert tongue; 26. Tongue piece. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 4 This embodiment provides a corrugated cardboard packaging box with an enhanced stacking structure, including a box body 1 and a box cover 2. The box body 1 is formed by a front end plate 11, a rear end plate 12, a bottom plate 13 and two side walls 14 to form an open-top receiving chamber. The box cover 2 is rotatably connected to the edge of the open top of the box body 1. Insertion pieces 15 are symmetrically arranged on both sides of the top of the box body 1. Insertion holes 21 are opened on both sides of the top of the box cover 2 and corresponding to the positions of the insertion pieces 15. The insertion pieces 15 are configured to be inserted into the corresponding insertion holes 21 when the box cover 2 is closed. After the insertion pieces 15 are inserted into the insertion holes 21, their ends penetrate through the insertion holes 21 and are exposed on the outer surface of the box cover 2. Positioning holes 16 are symmetrically opened on both sides of the bottom of the bottom plate 13 of the box body 1. The positioning holes 16 are configured to allow the ends of the insertion pieces 15 exposed on the outer surface of the box cover 2 in the upper layer of the packaging box to be inserted into the positioning holes 16 in the lower layer of the packaging box when multiple packaging boxes are stacked.

[0022] When the lid 2 is closed, the insert pieces 15 on both sides of the top of the box body 1 are inserted into the corresponding insert holes 21 of the lid 2. Their ends pass through the insert holes 21 and are exposed on the outer surface of the lid 2, forming a preliminary connection. When multiple boxes are stacked, the ends of the insert pieces 15 of the upper box are precisely inserted into the positioning holes 16 of the bottom plate 13 of the lower box. The rigid interlocking of the upper and lower boxes is achieved through the vertical interlocking structure, which restricts the lateral displacement of the boxes during stacking and prevents collapse accidents caused by transportation bumps or uneven stacking.

[0023] The top edges of the two side walls 14 of the box body 1 are respectively connected to inner panels 17 that bend toward the inner side of the cavity of the box body 1. The inner panels 17 are arranged parallel to the side walls 14, and the inner panels 17 and the side walls 14 form a double-layer composite structure, which can reduce the direct transmission of impact force to the goods, while maintaining the overall rigidity of the frame of the box body 1.

[0024] Both sides of the front plate 11 and both sides of the rear plate 12 are provided with glue plates 18 that are bent vertically toward the inner side of the receiving cavity of the box body 1. The glue plates 18 are inserted into the interlayer gap formed between the side wall 14 and the inner plate 17, and both sides of the glue plates 18 are respectively bonded and fixed to the side wall 14 and the inner plate 17. The glue plates 18 facilitate the bonding and fixing between the side wall 14 and the front plate 11 and the rear plate 12.

[0025] The two side walls 14 of the box body 1 are provided with waist-shaped holes 19. The waist-shaped holes 19 serve as gripping positions during manual handling, making it easier for operators to lift the packaging box with both hands and improving handling efficiency.

[0026] On the bottom edge of the lid 2, except for the side that is rotatably connected to the top of the box body 1, the other three sides are connected to a vertically bent lid 22. The vertically bent lid 22 on the three sides fits into the open edge of the top of the box body 1, limiting the horizontal offset of the lid 2, ensuring the precise alignment of the insert piece 15 and the insert hole 21, and the lid 22 can prevent dust, moisture or foreign objects from entering the box, protecting the goods from contamination.

[0027] The bottom edge of the cover 22 on the corresponding side of the front panel 11 of the box body 1 is connected to an upwardly bent strip 23. The top of the box cover 2 is symmetrically provided with strip holes 24 near the strip 23. The top of the strip 23 is symmetrically provided with tongues 25. The tongues 25 are slidably inserted into the corresponding strip holes 24. The tongues 25 and the strip holes 24 cooperate to form a lock.

[0028] The edges of the cover 22 on the corresponding sides of the side walls 14 of the box body 1, near the strip 23, are connected to vertically bent tongues 26. The tongues 26 are slidably inserted into the interlayer formed between the cover 22 and the strip 23 on the corresponding side. The tongues 26 are used to constrain the three cover 22s to form a stable connection structure.

[0029] 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 corrugated cardboard packaging box with a reinforced stacking structure, comprising a box body (1) and a box lid (2), wherein the box body (1) is formed by a front end plate (11), a rear end plate (12), a bottom plate (13), and two side walls (14) to form a top-opening receiving chamber, and the box lid (2) is rotatably connected to the top open edge of the box body (1), characterized in that: The top two sides of the box body (1) are symmetrically provided with plug-in pieces (15). The top two sides of the box cover (2) are provided with plug-in holes (21) corresponding to the positions of the plug-in pieces (15). The plug-in pieces (15) are configured to be inserted into the corresponding plug-in holes (21) when the box cover (2) is closed. After the plug-in pieces (15) are inserted into the plug-in holes (21), their ends penetrate through the plug-in holes (21) and are exposed on the outer surface of the box cover (2). The bottom plate (13) of the box body (1) is symmetrically provided with positioning holes (16) on both sides. The positioning holes (16) are configured to allow the ends of the plug-in pieces (15) exposed on the outer surface of the box cover (2) in the upper packaging box to be inserted into the positioning holes (16) in the lower packaging box when multiple packaging boxes are stacked.

2. The corrugated cardboard packaging box with reinforced stacking structure according to claim 1, characterized in that, The top edges of the two side walls (14) of the box body (1) are respectively connected to an inner plate (17) that bends toward the inner side of the receiving cavity of the box body (1), and the inner plate (17) is arranged parallel to the side wall (14).

3. The corrugated cardboard packaging box with reinforced stacking structure according to claim 2, characterized in that, Both sides of the front end plate (11) and both sides of the rear end plate (12) are provided with glue plates (18) that are bent vertically toward the inner side of the receiving cavity of the box body (1). The glue plates (18) are inserted into the interlayer gap formed between the side wall (14) and the inner plate (17), and both sides of the glue plates (18) are respectively bonded and fixed to the side wall (14) and the inner plate (17).

4. The corrugated cardboard packaging box with reinforced stacking structure according to claim 1, characterized in that, The two side walls (14) of the box body (1) are provided with waist-shaped holes (19).

5. The corrugated cardboard packaging box with reinforced stacking structure according to claim 1, characterized in that, The bottom edge of the lid (2) has a vertically bent lip (22) connected to the top of the box body (1) on the other three sides.

6. The corrugated cardboard packaging box with reinforced stacking structure according to claim 5, characterized in that, The bottom edge of the cover rim (22) on the corresponding side of the front end plate (11) of the box body (1) is connected to an upwardly bent strip (23). The top of the box cover (2) is symmetrically provided with strip holes (24) near the strip (23). The top of the strip (23) is symmetrically provided with tongues (25), and the tongues (25) are slidably inserted into the corresponding strip holes (24).

7. The corrugated cardboard packaging box with reinforced stacking structure according to claim 1, characterized in that, The side walls (14) of the box body (1) on both sides are connected to vertically bent tongues (26) on the edge of the cover (22) near the strip (23). The tongues (26) are slidably inserted into the interlayer formed between the cover (22) and the strip (23) on the corresponding side.

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