A waterproof packaging box with a protective structure

Abstract

This utility model provides a waterproof packaging box with a protective structure, including a corrugated box body and a corrugated flap integrally formed on the opening side of the box body; a first honeycomb cardboard layer is provided at the bottom of the inner cavity of the corrugated box body, a buffer limiting seat is provided above the first honeycomb cardboard layer, and a buffer pressing seat is provided above the buffer limiting seat; the buffer limiting seat includes a limiting main board formed by folding a corrugated cardboard and support side plates formed on the four sides of the limiting main board and in contact with the first honeycomb cardboard layer, and a fitting hole matching the shape of the product is opened in the middle of the limiting main board; the buffer pressing seat includes a second honeycomb cardboard layer and hollow corrugated tubes respectively pasted and fixed at the four corners of the lower surface of the second honeycomb cardboard layer. In addition to having good shock absorption and cushioning functions, it can fix the product securely and provide good cushioning protection for the product, and also has waterproof and mildew-proof functions.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and in particular to a waterproof packaging box with a protective structure. Background Technology

[0002] Chinese Patent Publication No. CN222432804U, published on February 7, 2025, discloses a novel corrugated cardboard box, belonging to the field of corrugated cardboard box technology. The box includes a corrugated cardboard box with an internal compression-resistant mechanism. This mechanism includes support strips fixedly installed inside the box, a grid plate fixedly installed inside the box wall, and rectangular holes on the side surface of the box. A protective sleeve is fixedly installed on the inner surface of the rectangular holes, and a connecting strip is fixedly installed on the surface of the protective sleeve. This novel corrugated cardboard box, by incorporating support strips and reinforcing ribs, and a grid plate inside, improves the overall strength of the box body and lid, thereby enhancing its compression resistance. The rectangular holes and protective sleeve facilitate handling, and the protective sleeve, equipped with a sealing plate, rubber gasket, sealing plug, and elastic tension band, seals the rectangular holes, further improving the box's airtightness. The existing technology has the following drawbacks: the product is prone to shaking when placed inside the box, resulting in a low safety factor, and its functionality is relatively limited. Therefore, improvements are urgently needed. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a waterproof packaging box with a protective structure, which can fix the product in place and provide good cushioning protection, while also being waterproof and mildew-proof.

[0004] This utility model provides a waterproof packaging box with a protective structure, including a corrugated box body and a corrugated flap integrally formed on the opening side of the box body; a first honeycomb cardboard layer is provided at the bottom of the inner cavity of the corrugated box body, a buffer limiting seat is provided above the first honeycomb cardboard layer, and a buffer pressing seat is provided above the buffer limiting seat; the buffer limiting seat includes a limiting main board formed by folding a corrugated cardboard and support side plates formed on the four sides of the limiting main board and in contact with the first honeycomb cardboard layer, and a fitting hole matching the shape of the product is opened in the middle of the limiting main board; the buffer pressing seat includes a second honeycomb cardboard layer and support side plates respectively pasted and fixed to the second honeycomb cardboard layer. Hollow corrugated tubes are located at the four corners of the lower surface of the honeycomb cardboard layer, and all four sides of the corrugated tubes are in contact with the upper surface of the limiting main board. A first folding surface is integrally formed on one side of the corrugated flap along its length, and a tongue is formed in the middle of the free end of one side of the first folding surface. An insertion hole for inserting the tongue is opened on the side of the corrugated box corresponding to the first folding surface. Plastic corner protectors are provided at the four corners of the outer side of the corrugated box. A moisture-proof layer and an anti-fogging coating are successively coated on the inner side of the corrugated box from the inside to the outside. A waterproof coating is coated on the outer side of the corrugated box. An antibacterial layer is coated on the lower surface of the second honeycomb cardboard layer.

[0005] Preferably, both the corrugated box and the corrugated flip cover are configured as type B corrugated boxes.

[0006] Preferably, the fitting hole is circumferentially formed with a plurality of abutment blocks that come into contact with the product.

[0007] Preferably, the corrugated tube is filled with a layer of pearl cotton.

[0008] Preferably, a positioning groove corresponding to the product shape is formed on the lower surface of the second honeycomb paperboard layer at the position corresponding to the fitting hole.

[0009] Preferably, the inner side of the first folding surface is provided with a Velcro A side, and the upper part of the side of the corrugated box with the insertion hole is provided with a Velcro B side that mates with the Velcro A side.

[0010] Preferably, the corrugated cover has a second folding surface integrally formed on both opposite sides in the width direction; when in a sealed state, the second folding surfaces on both sides are in contact with the two inner sidewalls of the corrugated box in the width direction.

[0011] Preferably, the outer surface of the corrugated box is provided with hook and loop fastener A on two adjacent sides at the four corners, and the inner side of each plastic corner protector is provided with hook and loop fastener B that mates with the hook and loop fastener A.

[0012] Preferably, the bottom of the corrugated box is provided with clearance slots on all four sides, and the outer side of the corrugated flip cover is provided with positioning protrusions at positions corresponding to the clearance slots.

[0013] Preferably, the outer surface of the corrugated flap has an anti-slip textured layer.

[0014] The beneficial effects of this utility model are as follows: A first honeycomb cardboard layer is provided at the bottom of the inner cavity of the corrugated box, a buffer limiting seat is provided above the first honeycomb cardboard layer, and a buffer pressing seat is provided above the buffer limiting seat. The buffer limiting seat and the buffer pressing seat form a protective structure. The bottom of the product passes through the interlocking hole and is placed above the first honeycomb cardboard layer. With the cooperation of the first honeycomb cardboard layer, the buffer limiting seat and the buffer pressing seat, the product can be fixed in place and provide good cushioning protection for the product while having good shock absorption and cushioning function. In addition, the inner side of the corrugated box is coated with a moisture-proof layer and an anti-fogging coating from the inside to the outside, the outer side of the corrugated box is coated with a waterproof coating, and the lower surface of the second honeycomb cardboard layer is coated with an antibacterial layer, so that this structure has functions such as moisture-proof, waterproof, mildew-proof and antibacterial, thereby providing a good storage environment for the product. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view (first-person perspective) of the present invention.

[0016] Figure 2 This is a three-dimensional view (second perspective) of the present invention.

[0017] Figure 3 This is a side sectional view of the cardboard of a corrugated box.

[0018] The attached diagram is labeled as follows: corrugated box body 10, insertion hole 11, hook and loop fastener B side 12, hook and loop fastener A side 13, plastic corner protector 14, corrugated flip cover 15, insertion tongue 16, second folding surface 17, first honeycomb cardboard layer 18, fitting hole 19, supporting side plate 20, limiting main plate 21, corrugated tube body 22, anti-folding block 23, second honeycomb cardboard layer 24, positioning groove 25, positioning protrusion 26, clearance slot 27, buffer limiting seat 28, buffer pressing seat 29, first folding surface 30, waterproof coating 31, moisture-proof layer 32, anti-fogging agent coating 33. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] Please refer to Figure 1-3 As shown, this utility model provides a waterproof packaging box with a protective structure, including a corrugated box body 10 and a corrugated flap 15 integrally formed on the opening side of the box body 10; both the corrugated box body 10 and the corrugated flap 15 are configured as type B corrugated boxes. A first honeycomb cardboard layer 18 is provided at the bottom of the inner cavity of the corrugated box body 10. A buffer limiting seat 28 is provided above the first honeycomb cardboard layer 18, and a buffer pressing seat 29 is provided above the buffer limiting seat 28. The buffer limiting seat 28 includes a limiting main plate 21 folded from a corrugated cardboard and supporting side plates 20 formed on the four sides of the limiting main plate 21 and in contact with the first honeycomb cardboard layer 18. A fitting hole 19 matching the product shape is opened in the middle of the limiting main plate 21. The buffer pressing seat 29 includes a second honeycomb cardboard layer 24 and hollow corrugated tubes 22 respectively pasted and fixed at the four corners of the lower surface of the second honeycomb cardboard layer 24. The four corrugated tubes 22 are all in contact with the limiting main plate 21. The upper surfaces are in contact with each other; a first folding surface 30 is integrally formed on one side of the corrugated cover 15 along its length, and a tongue 16 is formed in the middle of the free end of one side of the first folding surface 30 along its length. A socket 11 for inserting the tongue 16 is opened on the side of the corrugated box 10 corresponding to the first folding surface 30. When in a sealed state, the tongue 16 is inserted into the socket 11 from the outside; plastic corner protectors 14 are provided at the four corners of the outer side of the corrugated box 10; a moisture-proof layer 32 and an anti-fogging coating 33 are successively coated on the inner side of the corrugated box 10 from the inside to the outside; a waterproof coating 31 is coated on the outer side of the corrugated box 10; and an antibacterial layer is coated on the lower surface of the second honeycomb cardboard layer 24.

[0022] As a preferred embodiment, the fitting hole 19 is circumferentially formed with a plurality of abutment blocks 23 that abut against the product, thereby improving the fitting stability between the product and the fitting hole 19.

[0023] As a preferred embodiment, the corrugated tube 22 is filled with a layer of pearl cotton to enhance the seismic buffering function of the structure.

[0024] In a preferred embodiment, a positioning groove 25 corresponding to the product shape is formed on the lower surface of the second honeycomb cardboard layer 24 at the position corresponding to the fitting hole 19. When the product is placed inside the corrugated box 10, the bottom of the product passes through the fitting hole 19, and the top of the product is embedded in the positioning groove 25, thereby further fixing the product.

[0025] In a preferred embodiment, the inner side of the first folding surface 30 is provided with a hook and loop fastener A side, and the upper part of the side surface of the corrugated box 10 with the insertion hole 11 is provided with a hook and loop fastener B side 12 that mates with the hook and loop fastener A side. The sealing performance of this structure is further improved by the fastening and fixing of the hook and loop fastener A side and the hook and loop fastener B side 12.

[0026] In a preferred embodiment, the corrugated cover 15 has a second folding surface 17 integrally formed on both opposite sides in the width direction; when in a sealed state, the second folding surfaces 17 on both sides are in contact with the two inner sidewalls of the corrugated box 10 in the width direction.

[0027] In a preferred embodiment, each of the four corner sides of the corrugated box 10 is provided with a Velcro A-side 13, and the inner side of each plastic corner protector 14 is provided with a Velcro B-side that mates with the Velcro A-side. The mate of the Velcro A-side 13 and Velcro B-side facilitates the installation and removal of the plastic corner protectors 14, allowing for flexible configuration of the corner protectors 14 for different applications. When the plastic corner protectors 14 are fixed at the corners of the corrugated box 10, they protect the edges and corners from impacts.

[0028] In a preferred embodiment, the bottom four sides of the corrugated box 10 are provided with clearance slots 27, and the outer side of the corrugated flip cover 15 is provided with positioning protrusions 26 at positions corresponding to the clearance slots 27. When the structure is placed together, the positioning protrusions 26 of the lower corrugated box 10 are embedded into the clearance slots 27 at the bottom of the upper corrugated box 10, thereby preventing slippage during stacking.

[0029] As a preferred embodiment, the outer surface of the corrugated flap 15 is formed with an anti-slip textured layer to increase friction during stacking and further reduce the risk of displacement.

[0030] In this embodiment, a first honeycomb cardboard layer is placed at the bottom of the inner cavity of the corrugated box. A buffer limiting seat is provided above the first honeycomb cardboard layer, and a buffer pressing seat is provided above the buffer limiting seat. The bottom of the product passes through the interlocking hole and is placed above the first honeycomb cardboard layer. With the cooperation of the first honeycomb cardboard layer, the buffer limiting seat, and the buffer pressing seat, the product can be fixed in place and provided with good cushioning protection while having good shock absorption function. In addition, the inner side of the corrugated box is coated with a moisture-proof layer and an anti-fogging coating from the inside to the outside, the outer side of the corrugated box is coated with a waterproof coating, and the lower surface of the second honeycomb cardboard layer is coated with an antibacterial layer. This structure has functions such as moisture-proof, waterproof, mildew-proof, and antibacterial properties, thereby providing a good storage environment for the product.

[0031] 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. A waterproof packaging box with a protective structure, comprising a corrugated box body (10) and a corrugated flap (15) integrally formed on the opening side of the box body (10); characterized in that: The inner cavity of the corrugated box (10) is padded with a first honeycomb cardboard layer (18). A buffer limiting seat (28) is provided above the first honeycomb cardboard layer (18), and a buffer pressing seat (29) is provided above the buffer limiting seat (28). The buffer limiting seat (28) includes a limiting main board (21) formed by folding a corrugated cardboard and support side plates (20) formed on the four sides of the limiting main board (21) and in contact with the first honeycomb cardboard layer (18). The limiting main board (21) has a fitting hole (19) in the middle that matches the shape of the product. The buffer pressing seat (29) includes a second honeycomb cardboard layer (24) and hollow corrugated tubes (22) respectively pasted and fixed at the four corners of the lower surface of the second honeycomb cardboard layer (24). The corrugated tubes (22) are in contact with the upper surface of the limiting main board (21); the corrugated cover (15) has a first folding surface (30) integrally formed on one side along its length, and a tongue (16) is formed in the middle of the free end of one side along its length. The corrugated box (10) has a socket (11) for inserting the tongue (16) on one side corresponding to the first folding surface (30); plastic corner protectors (14) are provided at the four corners of the outer side of the corrugated box (10); the inner side of the corrugated box (10) is coated with a moisture-proof layer (32) and an anti-fogging agent coating from the inside to the outside; the outer side of the corrugated box (10) is coated with a waterproof coating (31); and the lower surface of the second honeycomb cardboard layer (24) is coated with an antibacterial layer.

2. A waterproof packaging box with a protective structure according to claim 1, characterized in that: Both the corrugated box body (10) and the corrugated flip cover (15) are configured as type B corrugated boxes.

3. A waterproof packaging box with a protective structure according to claim 1, characterized in that: The fitting hole (19) is circumferentially formed with a plurality of abutment blocks (23) that come into contact with the product.

4. A waterproof packaging box with a protective structure according to claim 1, characterized in that: The corrugated tube (22) is filled with a layer of pearl cotton.

5. A waterproof packaging box with a protective structure according to claim 1, characterized in that: The lower surface of the second honeycomb paperboard layer (24) has a positioning groove (25) corresponding to the product shape at the position corresponding to the fitting hole (19).

6. A waterproof packaging box with a protective structure according to claim 1, characterized in that: The inner side of the first folding surface (30) is provided with a Velcro A side, and the upper part of the side surface of the corrugated box (10) with the insertion hole (11) is provided with a Velcro B side (12) that mates with the Velcro A side.

7. A waterproof packaging box with a protective structure according to claim 1, characterized in that: The corrugated cover (15) has a second folding surface (17) integrally formed on both sides in the width direction; when it is in a sealed state, the second folding surfaces (17) on both sides are in contact with the two inner side walls in the width direction of the corrugated box (10).

8. A waterproof packaging box with a protective structure according to claim 1, characterized in that: The outer side of the corrugated box (10) is provided with hook and loop fastener A (13) on two adjacent sides at the four corners, and the inner side of each plastic corner protector (14) is provided with hook and loop fastener B that mates with the hook and loop fastener A.

9. A waterproof packaging box with a protective structure according to claim 1, characterized in that: The bottom four sides of the corrugated box (10) are provided with clearance slots (27), and the outer side of the corrugated flip cover (15) and the position corresponding to the clearance slots (27) are provided with positioning protrusions (26).

10. A waterproof packaging box with a protective structure according to claim 1, characterized in that: The outer surface of the corrugated flap (15) has an anti-slip textured layer.

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