A packaging carton with adjustable interior space

Abstract

The utility model provides a kind of packing carton with adjustable internal space, including corrugated outer box and L-shaped corrugated flip integrally formed in the opening side of corrugated outer box, the bottom of the inner cavity of corrugated outer box is provided with corrugated paper mat layer, the upper surface of corrugated paper mat layer is provided with honeycomb corrugated paper mat, the upper surface of honeycomb corrugated paper mat and the four side angle positions in the inner cavity of corrugated outer box are provided with triangular corrugated paper support frame;The corrugated paper support frame between the opposite sides of the length direction of the inner cavity of corrugated outer box is clamped with honeycomb corrugated paper inner support plate;Two honeycomb corrugated paper inner support plates are sequentially and uniformly distributed with several embedded grooves along its length direction;Corrugated paper partition is provided between the opposite sides of two honeycomb corrugated paper inner support plates, the opposite sides of corrugated paper partition width direction are formed with protruding block embedded connection with embedded groove;The partition is convenient to replace, and the whole has good compression resistance, shock resistance, buffering and moisture-proof function.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box technology, and in particular to a packaging cardboard box with adjustable internal space. Background Technology

[0002] Chinese Patent Publication No. CN222248182U, published on December 27, 2024, discloses a packaging box with an adjustable inner partition structure. The box includes a box body, an adjustment mechanism for adjusting the inner partition installed on the inner side of the box body, and a locking mechanism for locking the inner partition installed on the top of the adjustment mechanism. The adjustment mechanism includes first grooves symmetrically formed on the inner sidewall of the box body, with a first inner partition symmetrically slidably connected to the inner side of the first groove. This utility model relates to the field of packaging box technology. Compared to the prior art, this application, through the adjustment and locking mechanisms, allows for direct isolation and buffering of different contents by adjusting and locking the distance between the inner partitions, eliminating the need for different inner partitions and simplifying operation. In practical applications, the existing technology has the following drawbacks: 1. Components such as springs, slots, and locking boxes increase molds and production processes, raising the cost per box; 2. Springs are prone to fatigue failure due to long-term compression, and the edges of the slots may deform due to frequent friction, leading to loose locking. Damage requires replacement of the entire adjustment mechanism, resulting in high maintenance costs; 3. The partitions only separate spaces and lack active cushioning materials. The partitions are in hard contact with the box body, and external impacts may be directly transmitted to the contents; 4. It is not environmentally friendly. Given these circumstances, improvements are urgently needed. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a packaging carton with adjustable internal space, made entirely of corrugated cardboard, which conforms to the concept of environmental protection, with easy-to-replace partitions, and with good overall pressure resistance, shock resistance, cushioning and moisture-proof functions.

[0004] This utility model provides a packaging carton with adjustable internal space, including a corrugated outer box and an L-shaped corrugated flap integrally formed on the opening side of the corrugated outer box. A wavy corrugated paper pad layer is provided at the bottom of the inner cavity of the corrugated outer box. A honeycomb corrugated paper pad is placed on the upper surface of the wavy corrugated paper pad layer. Triangular corrugated paper support frames are provided on the upper surface of the honeycomb corrugated paper pad and at the four corners of the inner cavity of the corrugated outer box. A honeycomb corrugated paper inner support plate is sandwiched between the corrugated paper support frames on opposite sides along the length direction of the inner cavity of the corrugated outer box. Several interlocking grooves are evenly distributed along the length direction of the two honeycomb corrugated paper inner support plates. A corrugated paper partition is provided between the honeycomb corrugated paper inner support plates on opposite sides, and the corrugated paper partition has interlocking grooves on opposite sides along the width direction of the opposite sides. The corrugated outer box has a connecting protrusion; honeycomb corrugated paper buffer side plates are sandwiched between the corrugated paper support frames on opposite sides of the inner cavity of the corrugated outer box in the width direction; at least one first outward folding surface is cut on the side of each of the two corrugated paper buffer side plates facing the corrugated paper partition; at least one second outward folding surface is cut on opposite sides of the corrugated paper partition, and the positions of the first outward folding surface and the second outward folding surface correspond to each other; a honeycomb corrugated paper buffer top plate is attached to the inner side of the corrugated flap, and when the corrugated flap is in the closed state, the honeycomb corrugated paper buffer top plate is in contact with the honeycomb corrugated inner support plate and the upper surface of the corrugated paper support frame; the inner cavity of the corrugated outer box is coated with a starch-based coating; a biodegradable corn starch adhesive strip layer is attached to the other sides of the L-shaped corrugated flap, except for the side connected to the corrugated outer box.

[0005] Preferably, a plurality of first arc-shaped corrugated paper buffer sheets are bonded and fixed to the inner side of the honeycomb corrugated paper buffer top plate.

[0006] Preferably, the two honeycomb corrugated paper inner support plates have a raised texture layer molded on one side facing each other.

[0007] Preferably, both sides of the first outward folded surface are coated with an anti-slip film layer.

[0008] Preferably, the outer surface of the corrugated outer casing is coated with a waterproof membrane layer.

[0009] Preferably, a second arc-shaped corrugated paper buffer sheet is attached to the lower surface of both protrusions.

[0010] Preferably, the outer surface of the L-shaped corrugated flap is printed with a recycling guidance QR code layer.

[0011] The beneficial effects of this utility model are as follows: It is made entirely of corrugated cardboard, is recyclable, and conforms to environmental protection principles; the corrugated cardboard partitions are connected to the honeycomb-shaped corrugated cardboard inner support plate via protrusions, allowing for vertical removal or disassembly for easy replacement, and the engagement position of the corrugated cardboard partitions can be adjusted according to the product size, achieving adjustable internal space; by setting the first and second outward folding surfaces, the space inside the corrugated outer box can be further divided, forming multiple storage spaces; triangular corrugated cardboard support frames are set at the four corners of the corrugated outer box's inner cavity, giving the structure good pressure resistance and good load-bearing capacity when stacked; the corrugated outer box has a length-direction... The honeycomb corrugated paper inner support plate and the honeycomb corrugated paper buffer side plate set in the width direction form a double-layer anti-slip buffer structure. Combined with the honeycomb corrugated paper buffer top plate, the pressure resistance and buffering performance are improved. The bottom of the inner cavity of the corrugated outer box is provided with a corrugated paper pad layer, and the upper surface of the corrugated paper pad layer is covered with a honeycomb corrugated paper pad to ensure that the bottom of the corrugated outer box has good shock resistance. The inner cavity of the corrugated outer box is coated with a starch-based coating, which makes the structure moisture-proof. The L-shaped corrugated flip cover has a biodegradable corn starch adhesive strip layer on the side other than the side connected to the corrugated outer box. When closed, it is pressed against the edge of the box to form a temporary seal, which prevents dust and moisture. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention.

[0013] Figure 2 This is the first cross-sectional view of the present invention.

[0014] Figure 3 This is a second cross-sectional view of the present invention.

[0015] The attached figures are labeled as follows: corrugated outer box 10, L-shaped corrugated flap 12, corrugated paper partition 11, second arc-shaped corrugated paper buffer 13, honeycomb corrugated paper buffer side plate 14, triangular corrugated paper support frame 15, first outward folding surface 16, honeycomb corrugated paper inner support plate 17, second outward folding surface 18, fitting groove 19, first arc-shaped corrugated paper buffer 20, honeycomb corrugated paper buffer top plate 21, biodegradable corn starch adhesive strip layer 22, corrugated paper pad layer 23, honeycomb corrugated paper pad 24, protrusion 25. Detailed Implementation

[0016] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with specific embodiments and accompanying drawings.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Please refer to Figure 1-3 As shown, this utility model provides a packaging carton with adjustable internal space, including a corrugated outer box 10 and an L-shaped corrugated flap 12 integrally formed on the opening side of the corrugated outer box 10. A wavy corrugated paper pad layer 23 is provided at the bottom of the inner cavity of the corrugated outer box 10. A honeycomb corrugated paper pad 24 is provided on the upper surface of the wavy corrugated paper pad layer 23. Triangular corrugated paper support frames 15 are provided on the upper surface of the honeycomb corrugated paper pad 24 and at the four corners of the inner cavity of the corrugated outer box 10. A honeycomb corrugated paper inner support plate 17 is sandwiched between the corrugated paper support frames 15 on opposite sides along the length direction of the inner cavity of the corrugated outer box 10. Several interlocking grooves 19 are evenly distributed along the length direction of the two honeycomb corrugated paper inner support plates 17. A corrugated paper partition 11 is provided between the opposite sides of the honeycomb corrugated paper inner support plates 17. Interlocking grooves 19 are formed on opposite sides of the width direction of the corrugated paper partition 11 on opposite sides. The corrugated outer box 10 has a 25-piece interlocking protrusion; honeycomb corrugated paper buffer side plates 14 are sandwiched between the corrugated paper support frames 15 on opposite sides of the inner cavity of the corrugated outer box 10 in the width direction; at least one first outward folding surface 16 is cut on the side of the corrugated paper buffer side plates 14 facing the corrugated paper partition 11; at least one second outward folding surface 18 is cut on opposite sides of the corrugated paper partition 11, and the positions of the first outward folding surface 16 and the second outward folding surface 18 correspond to each other; a honeycomb corrugated paper buffer top plate 21 is attached to the inner side of the corrugated flip cover 12, and when the corrugated flip cover 12 is in the closed state, the honeycomb corrugated paper buffer top plate 21 is in contact with the upper surface of the honeycomb corrugated inner support plate 17 and the corrugated paper support frame 15; the inner cavity of the corrugated outer box 10 is coated with a starch-based coating; biodegradable corn starch adhesive strip layer 22 is attached to the other sides of the L-shaped corrugated flip cover 12 except for the side connected to the corrugated outer box 10.

[0019] As a preferred embodiment, a plurality of first arc-shaped corrugated paper buffer sheets 20 are bonded and fixed to the inner side of the honeycomb corrugated paper buffer top plate 21, which further enhances the pressure-resistant buffering function of the structure.

[0020] In a preferred embodiment, the two honeycomb corrugated inner support plates 17 are each molded with a raised texture layer on one side facing each other, and the two sides of the first outward folded surface 16 are coated with an anti-slip film layer. This structural arrangement increases friction and prevents the product from sliding.

[0021] As a preferred embodiment, the outer surface of the corrugated outer casing 10 is coated with a waterproof membrane layer, which gives the structure a waterproof function.

[0022] In a preferred embodiment, a second arc-shaped corrugated paper buffer sheet 13 is attached to the lower surface of both sides of the protrusion 25. When the corrugated paper partition 11 is compressed, the second arc-shaped corrugated paper buffer sheet 13 generates a buffering force, reducing the probability of the protrusion 25 breaking, thereby improving the service life of the corrugated paper partition 11.

[0023] As a preferred embodiment, the outer surface of the L-shaped corrugated flip cover 12 is printed with a recycling guidance QR code layer. Users can scan the code to obtain information on the nearest recycling point and points rewards, thereby increasing the recycling rate.

[0024] In this embodiment, the entire structure is made of corrugated cardboard, making it recyclable and environmentally friendly. The corrugated cardboard partitions are connected to the honeycomb-shaped corrugated cardboard inner support plate via protrusions, allowing for vertical removal or disassembly for easy replacement. The engagement position of the partitions can be adjusted according to the product size, enabling adjustable internal space. By setting a first and second outward folding surface, the internal space of the corrugated outer box can be further divided, creating multiple storage spaces. Triangular corrugated cardboard support frames are provided at the four corners of the internal cavity, giving the structure good pressure resistance and load-bearing capacity when stacked. The internal cavity of the corrugated outer box incorporates honeycomb-shaped support plates along its length. The corrugated cardboard inner support plate and the honeycomb corrugated cardboard buffer side plates in the width direction form a double-layer anti-slip buffer structure. Combined with the honeycomb corrugated cardboard buffer top plate, the pressure resistance and buffering performance are improved. The bottom of the inner cavity of the corrugated outer box is provided with a wavy corrugated cardboard pad layer, and the upper surface of the wavy corrugated cardboard pad layer is covered with a honeycomb corrugated cardboard pad to ensure that the bottom of the corrugated outer box has good shock resistance. The inner cavity of the corrugated outer box is coated with a starch-based coating, which makes the structure moisture-proof. The L-shaped corrugated flip cover has a biodegradable corn starch adhesive strip layer on the side other than the side connected to the corrugated outer box. When closed, it is pressed against the edge of the box to form a temporary seal, which prevents dust and moisture.

[0025] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An inner space-adjustable packaging carton comprising a corrugated outer box body (10) and an L-shaped corrugated flap (12) integrally formed on the opening side of the corrugated outer box body (10), characterized in that: A wavy corrugated paper pad layer (23) is provided at the bottom of the inner cavity of the corrugated outer box (10). A honeycomb corrugated paper pad (24) is provided on the upper surface of the wavy corrugated paper pad layer (23). A triangular corrugated paper support frame (15) is provided on the upper surface of the honeycomb corrugated paper pad (24) and at the four corners of the inner cavity of the corrugated outer box (10). Between the corrugated paper support frames (15) on opposite sides of the inner cavity of the corrugated outer box (10) along the length direction. Each is sandwiched with a honeycomb corrugated paper inner support plate (17); the two honeycomb corrugated paper inner support plates (17) are evenly distributed with a number of interlocking grooves (19) along their length direction; a corrugated paper partition (11) is provided between the honeycomb corrugated paper inner support plates (17) on opposite sides, and the corrugated paper partition (11) has protrusions (25) on opposite sides in the width direction that are connected to the interlocking grooves (19); the corrugated paper partition (11) on opposite sides in the width direction of the inner cavity of the corrugated outer box (10) is provided with a honeycomb corrugated paper inner support plate (17); the corrugated paper partition (11) is formed with a number of interlocking grooves (19) on opposite sides in the width direction of the inner cavity of the corrugated outer box (10) Honeycomb corrugated paper buffer side plates (14) are sandwiched between the paper support frames (15); each of the two sides of the corrugated paper buffer side plates (14) facing the corrugated paper partition (11) has at least one first outward folding surface (16) cut out; each of the two opposite sides of the corrugated paper partition (11) has at least one second outward folding surface (18) cut out, and the positions of the first outward folding surface (16) and the second outward folding surface (18) correspond to each other; the inner side of the corrugated flip cover (12) is affixed with The honeycomb corrugated paper buffer top plate (21) is in contact with the upper surface of the honeycomb corrugated paper inner support plate (17) and the corrugated paper support frame (15) when the corrugated cover (12) is closed; the inner cavity of the corrugated outer box (10) is coated with a starch-based coating; the L-shaped corrugated cover (12) is provided with a biodegradable corn starch adhesive strip layer (22) on the side other than the side connected to the corrugated outer box (10).

2. A carton of variable interior space according to claim 1, wherein: Multiple first arc-shaped corrugated paper buffer sheets (20) are glued and fixed to the inner side of the honeycomb corrugated paper buffer top plate (21).

3. A carton of variable interior space according to claim 1, wherein: Both of the honeycomb corrugated paper inner support plates (17) have a raised texture layer molded on one side facing each other.

4. A carton of variable interior space according to claim 1, wherein: Both sides of the first outward folded surface (16) are coated with an anti-slip film layer.

5. A carton of variable interior space according to claim 1 wherein: The outer surface of the corrugated outer casing (10) is coated with a waterproof membrane.

6. A packaging carton with adjustable internal space according to claim 1, characterized in that: The lower surfaces of the protrusions (25) on both sides are covered with a second arc-shaped corrugated paper buffer sheet (13).

7. A carton of variable interior space according to claim 1 wherein: The outer surface of the L-shaped corrugated flap (12) is printed with a recycling guidance QR code layer.

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