Waterproof kraft paper outer packaging box

By designing a waterproof kraft paper outer packaging box, using a multi-layer waterproof structure and sealing design, the problem that existing packaging boxes are easily soaked by rainwater when used outdoors, achieving effective waterproof performance and product safety effects.

CN222497150UActive Publication Date: 2025-02-18NINGBO LIANHE PAPER PRODUCTS CO LTD
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Patent Information

Application Number
CN202421096320.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-20
Publication Date
2025-02-18
Estimated Expiration
2034-05-20

AI Technical Summary

Technical Problem

When used outdoors, existing kraft paper packaging boxes are easily soaked by rain, resulting in structural damage and deformation, affecting the packaging effect and safety of the items.

Method used

A waterproof kraft paper outer packaging box was designed, using a combined structure of thickened kraft paper shell, waterproof inner lining and multi-layer waterproof board, combined with the sealing design of rubber edge seal, seal strip and sealing groove to ensure the waterproof performance of the packaging box. .

Benefits of technology

It effectively prevents the packaging box from being soaked by rain and water in rainy weather, avoids structural damage and deformation, and ensures the safety of the items and the stability of the packaging effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof kraft paper outer packaging box which comprises a bottom shell, the top of the bottom shell is fixedly connected with a thickened kraft paper shell, the inner side of the thickened kraft paper shell is fixedly connected with a waterproof lining shell, and the bottom of the waterproof lining shell is fixedly connected with the top of the bottom shell. The four corners of the thickened kraft paper shell are fixedly connected with supports, and the bottoms of the supports are fixedly connected with the top of the bottom shell. By arranging the waterproof lining shell, liquid leakage in the packaging box can be avoided when objects containing liquid are packaged, the first outer waterproof plate, the PVC supporting plate and the second outer waterproof plate are arranged and used in cooperation, the outer surface of the thickened kraft paper shell is protected, the thickened kraft paper shell is prevented from being soaked by rainwater, and the waterproof effect is good. In this way, the effect that the situation that when the packaging box is used outdoors and in rainy and snowy days, the packaging box is prone to being soaked by rainwater, the packaging effect on objects becomes poor, and the objects are damaged is effectively prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to a waterproof kraft paper outer packaging box. Background Art

[0002] As the name implies, packaging boxes are boxes used to package products. They can be classified by material, such as paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated packaging boxes, PVC boxes, etc. They can also be classified by product name, such as moon cake boxes, tea boxes, wolfberry boxes, candy boxes, exquisite gift boxes, local specialty boxes, wine boxes, chocolate boxes, food, medicine and health care product boxes, food packaging boxes, tea packaging boxes, pencil cases, etc. Functions of packaging boxes: ensure the safety of products in transportation and improve the grade of products.

[0003] After searching, Chinese patent application No. 202222483673.X discloses a kraft paper packaging box for transporting fragile goods, including a packaging box main body, a box cover is installed on the top of the packaging box main body, and blocks are engaged with the box cover on both sides, and rotating shaft one is provided on both sides of the outside of the packaging box main body, and the lower end of the rotating shaft one is rotatably connected with a rotating plate, and a fixing rod is engaged with the bottom of the rotating plate, and a rotating shaft two is provided at the end of the fixing rod, and the upper end of the rotating shaft two is rotatably connected with the rotating rod, a load-bearing plate is provided inside the packaging box main body, and a lifting rod is fixed to the outer end of the load-bearing plate, and the bottom of the lifting rod is in contact with the packaging box main body, the upper left side of the load-bearing plate is in contact with the outer interface of the pipeline, and a pipeline is slidably connected inside the outer interface of the pipeline, and an airbag is provided at the top of the pipeline. This packaging box is provided with an airbag without the need to be purchased separately, which can better protect the environment. At the same time, the shock-absorbing device reduces shaking, effectively improving the transportation quality.

[0004] Although the above patent is equipped with an airbag which does not need to be purchased separately and can better protect the environment, and the shock-absorbing device reduces shaking and effectively improves the transportation quality, when the packaging box is used outdoors in rainy and snowy weather, the packaging box is easily soaked by rain, causing damage to the packaging box structure, deformation, damage to the items inside, and causing inconvenience to the user.

[0005] Therefore, it is necessary to modify it to effectively prevent the packaging box from being soaked by rain and deformed when it is used outdoors in rainy and snowy weather, which will deteriorate the packaging effect of the items and cause damage to the items. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a waterproof kraft paper outer packaging box, which has the advantage of effectively preventing the packaging box from being easily soaked by rain and deformed when the packaging box is used outdoors in rainy and snowy weather, thereby reducing the packaging effect of the articles and causing damage to the articles. It solves the problem that when the packaging box is used outdoors in rainy and snowy weather, the packaging box is easily soaked by rain, resulting in damage to the packaging box structure, deformation, damage to the articles inside, and causing inconvenience to the user.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof kraft paper outer packaging box, comprising a bottom shell, the top of the bottom shell is fixedly connected with a thickened kraft paper shell, the inner side of the thickened kraft paper shell is fixedly connected with a waterproof lining shell, the bottom of the waterproof lining shell is fixedly connected to the top of the bottom shell, the four corners of the thickened kraft paper shell are fixedly connected with brackets, the bottom of the brackets is fixedly connected to the top of the bottom shell, and the upper part of the inner side of each of the two adjacent brackets is fixedly connected with a first outer waterproof board, the bottom of the first outer waterproof board is fixedly connected with a PVC support board, and the left and right sides of the PVC support board are both connected to the inner side of the bracket. The PVC support plate is fixedly connected to the outer surface of the thickened kraft paper shell, the bottom of the PVC support plate is fixedly connected with a second outer waterproof plate, the left and right sides of the second outer waterproof plate are fixedly connected with the inner side of the bracket, the bottom of the second outer waterproof plate is fixedly connected with the top of the bottom shell, the top of the bracket is fixedly connected with a top frame, the tops of the thickened kraft paper shell, the waterproof lining shell and the first outer waterproof plate are fixedly connected with the bottom of the top frame, the rear side of the top of the top frame is hinged with a box cover, the front side of the bottom of the box cover is fixedly connected with a Velcro male patch, and the front side of the top of the top frame is fixedly connected with a Velcro female patch.

[0008] As a preferred embodiment of the utility model, the rear side of the box cover is fixedly connected to a rubber edge seal, the rear end of the rubber edge seal is fixedly connected to the top of the top frame, the left and right sides of the bottom of the box cover are fixedly connected to sealing strips, and the left and right sides of the top of the top frame are provided with sealing grooves for use with the sealing strips.

[0009] As a preferred embodiment of the utility model, a rubber bottom ring is fixedly connected to the bottom of the bottom shell, the bottom of the rubber bottom ring is provided with anti-slip grooves, and a waterproof coating layer is fixedly connected to the bottom of the bottom shell, and the waterproof coating layer is fixedly connected to the inner surface of the rubber bottom ring on all sides.

[0010] As a preferred embodiment of the utility model, the top of the box cover is fixedly connected with an umbrella-shaped top, the top of the umbrella-shaped top is provided with a plurality of evenly distributed water guide grooves, and the four sides of the top frame are fixedly connected with waterproof edges.

[0011] As a preferred embodiment of the utility model, the left and right sides of the rear side of the inner wall of the waterproof lining shell are fixedly connected with compression springs, the front end of the compression spring is fixedly connected with a clamping plate, and the left and right sides of the inner wall of the waterproof lining shell are fixedly connected with protective air cushions.

[0012] As a preferred embodiment of the present invention, the outer side of the PVC support plate is rotatably connected to a shaft rod, the rear side of the shaft rod is fixedly connected to a connecting rod, and the rear end of the connecting rod is fixedly connected to a handle.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model puts the articles to be packaged into the packaging box, and provides a waterproof lining shell. When packaging articles containing liquids, leakage of liquid inside the packaging box can be avoided, which may lead to damage to the packaging box. By providing a bracket, the four corners of the packaging box are strongly supported to keep its shape and avoid collapse. By providing a thickened kraft paper shell, a supporting effect is achieved on the packaging box. By providing a first outer waterproof board, a PVC support board and a second outer waterproof board for coordinated use, the outer surface of the thickened kraft paper shell is protected to prevent rainwater from soaking the thickened kraft paper shell. By providing a top frame, the thickened kraft paper shell, the waterproof lining shell and the first outer waterproof board are integrated to prevent separation between the various board layers and affect the use. By providing a box cover, a male Velcro sticker and a female Velcro sticker, the packaging box can be conveniently closed to prevent rainwater from entering the packaging box from the top, thereby effectively preventing the packaging box from being easily soaked by rainwater and deformed when the packaging box is used outdoors in rainy and snowy weather, which deteriorates the packaging effect of the articles and causes damage to the articles.

[0015] 2. The utility model seals the gap between the rear side of the box cover and the top frame by arranging a rubber sealing edge. By arranging the sealing strip and the sealing groove for use together, when the box cover is closed, the surface of the sealing strip fits with the inner wall of the sealing groove, and the gap between the box cover and the top frame is filled and sealed, thereby preventing rainwater from flowing into the interior of the packaging box through the gap and causing damage to the items. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0019] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from above.

[0020] In the figure: 1. bottom shell; 2. thickened kraft paper shell; 3. waterproof lining shell; 4. bracket; 5. first outer waterproof board; 6. PVC support board; 7. second outer waterproof board; 8. top frame; 9. box cover; 10. Velcro male sticker; 11. Velcro female sticker; 12. rubber edge sealing; 13. sealing strip; 14. sealing groove; 15. rubber bottom ring; 16. anti-slip pattern; 17. waterproof coating layer; 18. umbrella-shaped top; 19. water guide groove; 20. waterproof edge; 21. compression spring; 22. splint; 23. protective air cushion; 24. shaft; 25. connecting rod; 26. handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, the utility model provides a waterproof kraft paper outer packaging box, including a bottom shell 1, the top of the bottom shell 1 is fixedly connected with a thickened kraft paper shell 2, the inner side of the thickened kraft paper shell 2 is fixedly connected with a waterproof lining shell 3, the bottom of the waterproof lining shell 3 is fixedly connected to the top of the bottom shell 1, the four corners of the thickened kraft paper shell 2 are fixedly connected with brackets 4, the bottom of the brackets 4 is fixedly connected to the top of the bottom shell 1, and the upper inner sides of the two adjacent brackets 4 are fixedly connected with a first outer waterproof board 5, the bottom of the first outer waterproof board 5 is fixedly connected with a PVC support board 6, the left and right sides of the PVC support board 6 are fixedly connected to the inner side of the bracket 4, P The inner surface of the VC support plate 6 is fixedly connected to the outer surface of the thickened kraft paper shell 2, the bottom of the PVC support plate 6 is fixedly connected to the second outer waterproof plate 7, the left and right sides of the second outer waterproof plate 7 are fixedly connected to the inner side of the bracket 4, the bottom of the second outer waterproof plate 7 is fixedly connected to the top of the bottom shell 1, the top of the bracket 4 is fixedly connected to the top of the top frame 8, the tops of the thickened kraft paper shell 2, the waterproof lining shell 3 and the first outer waterproof plate 5 are all fixedly connected to the bottom of the top frame 8, the rear side of the top of the top frame 8 is hinged with a box cover 9, the front side of the bottom of the box cover 9 is fixedly connected to a Velcro male patch 10, and the front side of the top of the top frame 8 is fixedly connected to a Velcro female patch 11.

[0023] refer to Figure 1 and Figure 4 The rear side of the box cover 9 is fixedly connected with a rubber sealing edge 12, the rear end of the rubber sealing edge 12 is fixedly connected to the top of the top frame 8, the left and right sides of the bottom of the box cover 9 are fixedly connected with sealing strips 13, and the left and right sides of the top of the top frame 8 are provided with sealing grooves 14 used in conjunction with the sealing strips 13.

[0024] As a technical optimization scheme of the utility model, by setting a rubber sealing edge 12, a sealing effect is achieved on the gap between the rear side of the box cover 9 and the top frame 8. By setting a sealing strip 13 and a sealing groove 14 for coordinated use, when the box cover 9 is closed, the surface of the sealing strip 13 fits against the inner wall of the sealing groove 14, and the gap between the box cover 9 and the top frame 8 is filled and sealed, thereby preventing rainwater from flowing into the interior of the packaging box through the gap and causing damage to the items.

[0025] refer to Figure 4 A rubber bottom ring 15 is fixedly connected to the bottom of the bottom shell 1, and an anti-slip pattern 16 is arranged on the bottom of the rubber bottom ring 15. A waterproof coating layer 17 is fixedly connected to the bottom of the bottom shell 1, and the waterproof coating layer 17 is fixedly connected to the inner surface of the rubber bottom ring 15 on all sides.

[0026] As a technical optimization scheme of the utility model, by providing a rubber bottom ring 15, the ground clearance of the bottom shell 1 is increased when the packaging box is placed on the ground, thereby avoiding the bottom shell 1 from directly contacting water and causing water immersion to affect use. By providing anti-slip grooves 16, the friction between the rubber bottom ring 15 and the placement surface is increased, which can make the packaging box more stable when placed. By providing a waterproof coating layer 17, the waterproof effect of the bottom of the bottom shell 1 is improved.

[0027] refer to Figure 1 The top of the box cover 9 is fixedly connected with an umbrella-shaped top 18, and a plurality of evenly distributed water guide grooves 19 are opened on the top of the umbrella-shaped top 18, and waterproof edges 20 are fixedly connected around the top frame 8.

[0028] As a technical optimization scheme of the utility model, by providing an umbrella-shaped top 18 and a water guide groove 19, water dripping from the top of the box cover 9 can be quickly discharged, thereby preventing rainwater from gathering on the top of the box cover 9 and causing the box cover 9 to be soaked in water and damaged. By providing a waterproof edge 20, a blocking effect is played on the water discharged from the box cover 9, preventing it from dripping directly onto the outer surface of the packaging box, thereby further improving the waterproof effect.

[0029] refer to Figure 3 The left and right sides of the rear side of the inner wall of the waterproof lining shell 3 are fixedly connected with compression springs 21, the front end of the compression spring 21 is fixedly connected with a clamping plate 22, and the left and right sides of the inner wall of the waterproof lining shell 3 are fixedly connected with protective air cushions 23.

[0030] As a technical optimization solution of the utility model, by setting up the compression spring 21, the clamping plate 22 and the protective air cushion 23, the items inside the packaging box can be clamped and fixed to prevent the items from shaking when moving and causing damage.

[0031] refer to Figure 1The outer side of the PVC support plate 6 is rotatably connected to a shaft rod 24 , the rear side of the shaft rod 24 is fixedly connected to a connecting rod 25 , and the rear end of the connecting rod 25 is fixedly connected to a handle 26 .

[0032] As a technical optimization solution of the utility model, by setting the coordinated use of the shaft rod 24, the connecting rod 25 and the handle 26, the user can conveniently hold the handle 26 to lift and move the packaging box. At the same time, the handle 26 can be rotated at an angle according to the needs of use, which further facilitates the use of the user.

[0033] The working principle and use process of the utility model are as follows: by placing the items to be packaged into the packaging box, and then closing the box cover 9, by setting the waterproof lining shell 3, when packaging the items containing liquids, it is possible to avoid leakage of liquid inside the packaging box, which may cause damage to the packaging box; by setting the bracket 4, the four corners of the packaging box are strongly supported to keep the shape and avoid collapse; by setting the thickened kraft paper shell 2, the packaging box has a supporting effect; by setting the first outer waterproof board 5, the PVC support board 6 and the second outer waterproof board 7, the outer surface of the thickened kraft paper shell 2 is effectively supported. It plays a protective role and prevents rain from soaking the thickened kraft paper shell 2. By setting the top frame 8, it integrates the thickened kraft paper shell 2, the waterproof lining shell 3 and the first outer waterproof board 5, avoiding the separation between the various board layers and affecting the use. By setting the box cover 9, the Velcro male patch 10 and the Velcro female patch 11, the packaging box can be conveniently closed to prevent rain from entering the packaging box from the top, thereby effectively preventing the packaging box from being easily soaked by rain and deformed when used outdoors in rainy and snowy weather, thereby reducing the packaging effect of the items and causing damage to the items.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof kraft paper outer packaging box, comprising a bottom shell (1), characterized in that: The top of the bottom shell (1) is fixedly connected to a thickened kraft paper shell (2), the inner side of the thickened kraft paper shell (2) is fixedly connected to a waterproof lining shell (3), the bottom of the waterproof lining shell (3) is fixedly connected to the top of the bottom shell (1), the four corners of the thickened kraft paper shell (2) are fixedly connected to brackets (4), the bottom of the brackets (4) is fixedly connected to the top of the bottom shell (1), and the upper inner sides of two adjacent brackets (4) are fixedly connected to a first outer waterproof board (5), the bottom of the first outer waterproof board (5) is fixedly connected to a PVC support board (6), the left and right sides of the PVC support board (6) are fixedly connected to the inner side of the bracket (4), and the inner surface of the PVC support board (6) is in contact with the thickened kraft paper shell ( 2), the bottom of the PVC support plate (6) is fixedly connected to a second outer waterproof plate (7), the left and right sides of the second outer waterproof plate (7) are fixedly connected to the inner side of the bracket (4), the bottom of the second outer waterproof plate (7) is fixedly connected to the top of the bottom shell (1), the top of the bracket (4) is fixedly connected to a top frame (8), the tops of the thickened kraft paper shell (2), the waterproof lining shell (3) and the first outer waterproof plate (5) are all fixedly connected to the bottom of the top frame (8), the rear side of the top of the top of the top frame (8) is hinged with a box cover (9), the front side of the bottom of the box cover (9) is fixedly connected to a Velcro male patch (10), and the front side of the top of the top frame (8) is fixedly connected to a Velcro female patch (11).

2. A waterproof kraft paper outer packaging box according to claim 1, characterized in that: The rear side of the box cover (9) is fixedly connected to a rubber sealing edge (12), the rear end of the rubber sealing edge (12) is fixedly connected to the top of the top frame (8), the left and right sides of the bottom of the box cover (9) are fixedly connected to sealing strips (13), and the left and right sides of the top of the top frame (8) are provided with sealing grooves (14) for use with the sealing strips (13).

3. The waterproof kraft paper outer packaging box according to claim 1, characterized in that: The bottom of the bottom shell (1) is fixedly connected to a rubber bottom ring (15) at four sides, and the bottom of the rubber bottom ring (15) is provided with anti-slip grooves (16). The bottom of the bottom shell (1) is fixedly connected to a waterproof coating layer (17), and the four sides of the waterproof coating layer (17) are fixedly connected to the inner surface of the rubber bottom ring (15).

4. The waterproof kraft paper outer packaging box according to claim 1, characterized in that: The top of the box cover (9) is fixedly connected to an umbrella-shaped top (18), and a plurality of evenly distributed water guide grooves (19) are provided on the top of the umbrella-shaped top (18). Waterproof edges (20) are fixedly connected to the four sides of the top frame (8).

5. The waterproof kraft paper outer packaging box according to claim 1, characterized in that: Compression springs (21) are fixedly connected to the left and right sides of the rear side of the inner wall of the waterproof lining shell (3), a clamping plate (22) is fixedly connected to the front end of the compression spring (21), and protective air cushions (23) are fixedly connected to the left and right sides of the inner wall of the waterproof lining shell (3).

6. The waterproof kraft paper outer packaging box according to claim 1, characterized in that: The outer side of the PVC support plate (6) is rotatably connected to a shaft rod (24), the rear side of the shaft rod (24) is fixedly connected to a connecting rod (25), and the rear end of the connecting rod (25) is fixedly connected to a handle (26).

Citation Information

Patent Citations

  • Kraft paper packaging box for transporting fragile products

    CN218778041U