An internally reinforced waterproof outer case
By using a foam base and a polyethylene wax waterproof film in the cardboard box, combined with a reinforcing rod support structure, the problems of cardboard box aging and deformation are solved, achieving higher waterproofness and stability, protecting the items inside the box, and supporting reuse.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FANHONG IND CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-08-04
AI Technical Summary
Existing waterproof cardboard boxes have a simple structure, are prone to oxidation and aging due to ultraviolet rays, and are easily deformed during storage and transportation, affecting the safety of goods.
The combination of a foam base plate and a polyethylene wax waterproof film enhances the waterproofness of the enclosure components, and the vertical pressure is distributed by reinforcing rods against the enclosure lid, thus improving stability.
It enhances the waterproofness and stability of the cardboard box, prevents deformation, protects the contents of the box, improves the reliability of transportation and storage, and supports reuse.
Smart Images

Figure CN224589592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging material technology, specifically to an internally reinforced waterproof outer box. Background Technology
[0002] With the development of the times, cardboard boxes have become the most widely used packaging and transportation products to cope with the storage and transportation of goods in daily life. Depending on the environment and to meet different needs, the types of cardboard boxes have gradually become more and more diverse. At the same time, waterproof and moisture-proof cardboard boxes are widely used for the transportation of specific products. For example, there are heavily sizing cardboard boxes, which are made by applying heavy sizing to the surface of the cardboard; coated cardboard boxes, which are made by coating plastic particles onto the surface of paper through a casting machine; and hydrophobic corrugated cardboard boxes, which are made waterproof by changing the roughness and surface morphology of the material surface. While pursuing waterproofness, the stability of the internal structure of the cardboard box is also highly valued.
[0003] Chinese Utility Model Patent Publication No. CN 212580364 U discloses a recyclable waterproof cardboard box. This recyclable waterproof cardboard box features auxiliary cardboard waterproof plastic, a cardboard box waterproof plastic, and waterproof plastic limiting grooves, which effectively prevent water penetration. However, this recyclable waterproof cardboard box relies solely on waterproof plastic for waterproofing, making the bottom of the box prone to deformation due to moisture. The method is too simplistic, and the plastic material is susceptible to aging due to oxidation and ultraviolet radiation, hindering storage and transportation. Furthermore, the lack of a supporting structure means that during storage and stacking, the box is subjected to vertical pressure, compressing the contents and causing damage. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide an internally reinforced waterproof outer box, which can effectively solve the problems of the existing technology being too simple and easily aging due to oxidation, ultraviolet rays and other factors, which is not conducive to storage and transportation, as well as the problem that the cardboard box is subjected to vertical pressure during storage and stacking, thus compressing the contents of the box.
[0005] The technical solution adopted by this utility model is as follows: an internally reinforced waterproof outer box, including a bottom plate, a limiting groove 1 is formed on the top of the bottom plate, a box assembly is inserted and installed inside the limiting groove 1, a waterproof layer is provided on the outside of the box assembly, handles are provided on the left and right sides of the box assembly, a limiting block is fixedly installed on the top of the bottom plate, a base is inserted and installed on the top of the limiting block, a limiting groove 2 is formed on the bottom of the base, an installation block is fixedly installed on the top of the base, a limiting groove 3 is formed on the top of the installation block, a reinforcing rod is inserted and installed inside the limiting groove 3, a box cover is provided on the top of the box assembly, and a limiting groove 4 is formed on the bottom of the box cover.
[0006] Preferably, the bottom plate is a foam bottom plate, and the waterproof layer is a polyethylene wax waterproof film waterproof layer.
[0007] Through the above technical solution, the bottom plate made of foam material has strong waterproof performance. At the same time, the foam material enables the carton to have a certain buoyancy in water, which can protect the carton from being submerged by water. By setting the waterproof film made of polyethylene wax material, the waterproof performance of the box body assembly can be improved, preventing the box body assembly from being soaked by water, avoiding the goods from being soaked and getting damp, and at the same time protecting the box body assembly from being easily deformed due to moisture, so as to avoid affecting the normal use of the carton.
[0008] Preferably, the box body assembly is adapted to the first limiting groove, and the limiting block is inserted and installed in the second limiting groove.
[0009] Through the above technical solution, when installing the carton, by inserting the box body assembly into the inner side of the first limiting groove, the box body assembly can be limited, so that the box body assembly will not be displaced, which is convenient for subsequent gluing and fixing of the box body assembly and the base. By inserting the limiting block into the inner side of the first limiting groove, the base can be fixed on the top of the bottom plate and will not be easily displaced, improving the stability of the base.
[0010] Preferably, the top of the box body assembly and the reinforcing rod are inserted and installed in the fourth limiting groove, and the cross section of the box cover is in a "hui" - shaped structure.
[0011] Through the above technical solution, after inserting the reinforcing rod into the inner side of the third limiting groove, the box cover can be limited by the cooperation of the fourth limiting groove, the box body assembly and the reinforcing rod, preventing the box cover from being displaced. Due to the insertion relationship between the third limiting groove and the box body assembly, the box cover is not easily detached due to external force, improving the stability of the box cover.
[0012] Preferably, there are four identical reinforcing rods, and the four reinforcing rods are respectively located at the four corners inside the box body assembly, and the reinforcing rod is inserted and installed with the mounting block.
[0013] Through the above technical solution, after inserting the box body assembly and the reinforcing rod into the fourth limiting groove, the top of the reinforcing rod abuts against the bottom of the box cover, thus playing a certain supporting role for the box cover and the bottom plate. To a certain extent, it avoids the box body assembly from being deformed and distorted due to the vertical pressure, affecting the normal use of the carton. By respectively arranging four reinforcing rods at the four corners, the pressure received is dispersed, improving the overall stability and bearing capacity, and playing a protective role for the items in the box. Through the insertion relationship between the reinforcing rod and the mounting block, the reinforcing rod can be quickly disassembled when not in use, so as to be reused, improving the practicability.
[0014] Preferably, the handle is located inside the box body assembly, and the handle is a hidden handle.
[0015] With the above technical solution, by setting handles, when moving the cardboard box, hands can be inserted into the hidden handles on the left and right sides to lift the cardboard box, making it easy to carry and improving the portability of the cardboard box. The hidden design does not take up space and improves space utilization.
[0016] Compared with the prior art, this utility model provides an internally reinforced waterproof outer casing, which has the following beneficial effects:
[0017] 1. This internally reinforced waterproof outer box is equipped with a foam bottom plate and a polyethylene wax waterproof layer on the outside of the box components. The foam and polyethylene wax have strong water resistance and sealing properties, which can improve the waterproof ability of the box and prevent the bottom of the box from easily deforming due to moisture. At the same time, polyethylene wax has the characteristics of UV protection, high temperature protection, and oxidation resistance, and has strong durability, which facilitates the storage and transportation of goods, and the waterproofing method is diverse.
[0018] 2. This internally reinforced waterproof outer box uses reinforcing rods that abut against the lid, providing support to the lid. During stacking, when the lid is subjected to vertical pressure, the multiple reinforcing rods disperse the force, protecting the lid from easy deformation due to pressure and thus preventing it from compressing the contents. This achieves the effect of protecting the contents. Furthermore, the internal reinforcing components can be quickly disassembled when not in use, facilitating recycling and increasing the secondary utilization rate of the internal reinforcing components. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the installation structure of the base and housing assembly of this utility model. Figure 1 ;
[0021] Figure 3 This is a schematic diagram of the installation structure of the base and housing assembly of this utility model. Figure 2 ;
[0022] Figure 4 This is a schematic diagram of the installation structure of the reinforcing rod and mounting block of this utility model.
[0023] The components are: 1. Base plate; 2. Limiting groove one; 3. Box assembly; 4. Waterproof layer; 5. Handle; 6. Limiting block; 7. Limiting groove two; 8. Base; 9. Mounting block; 10. Limiting groove three; 11. Reinforcing rod; 12. Box cover; 13. Limiting groove four. Detailed Implementation
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0025] Embodiment 1: As Figure 1-4 shown, an internally reinforced waterproof outer box provided by the present utility model includes a bottom plate 1. A first limiting groove 2 is opened at the top of the bottom plate 1. A box body assembly 3 is inserted and installed inside the first limiting groove 2. A waterproof layer 4 is provided on the outer side of the box body assembly 3. Handles 5 are provided on the left and right sides of the box body assembly 3. A limiting block 6 is fixedly installed at the top of the bottom plate 1. A base 8 is inserted and installed at the top of the limiting block 6. A second limiting groove 7 is opened at the bottom of the base 8. An installation block 9 is fixedly installed at the top of the base 8. A third limiting groove 10 is opened at the top of the installation block 9. A reinforcing rod 11 is inserted and installed inside the third limiting groove 10. A box cover 12 is provided at the top of the box body assembly 3. A fourth limiting groove 13 is opened at the bottom of the box cover 12.
[0026] Specifically, the bottom plate 1 is a foam bottom plate, and the waterproof layer 4 is a polyethylene wax waterproof film waterproof layer. The advantages are that the foam bottom plate 1 has strong waterproof performance, and at the same time, the foam material enables the cardboard box to have a certain buoyancy in water, which can protect the cardboard box from being submerged by water. By setting the waterproof film made of polyethylene wax material, the waterproof performance of the box body assembly 3 can be improved, preventing the box body assembly 3 from being soaked by water, avoiding the goods from being soaked and getting damp, and at the same time, protecting the box body assembly 3 from being easily deformed due to moisture, avoiding affecting the normal use of the cardboard box.
[0027] Specifically, the box body assembly 3 is adapted to the first limiting groove 2, and the limiting block 6 and the second limiting groove 7 are inserted and installed. The advantages are that when installing the cardboard box, by inserting the box body assembly 3 into the inside of the first limiting groove 2, the box body assembly 3 can be limited, so that the box body assembly 3 will not be displaced, which is convenient for subsequent gluing and fixing of the box body assembly 3 and the base 8. By inserting the limiting block 6 into the inside of the second limiting groove 7, the base 8 can be fixed on the top of the bottom plate 1 and will not be easily displaced, improving the stability of the base 8.
[0028] Specifically, the tops of the box body assembly 3 and the reinforcing rod 11 and the fourth limiting groove 13 are inserted and installed. The cross-section of the box cover 12 is in a "hui" - shaped structure. The advantages are that after inserting the reinforcing rod 11 into the inside of the third limiting groove 10, the box cover 12 can be limited through the cooperation of the fourth limiting groove 13, the box body assembly 3 and the reinforcing rod 11 to prevent the box cover 12 from being displaced. Through the insertion relationship between the third limiting groove 10 and the box body assembly 3, the box cover 12 is not easily detached due to external force, improving the stability of the box cover 12.
[0029] Example 2: Figure 2-4 As shown, this is an improvement on the previous embodiment.
[0030] Specifically, four identical reinforcing rods 11 are provided, located at the four corners inside the box assembly 3. The reinforcing rods 11 and the mounting blocks 9 are plugged in. The advantage is that after inserting the box assembly 3 and the reinforcing rods 11 into the limiting grooves 13, the top of the reinforcing rods 11 abuts against the bottom of the box cover 12, thus providing some support for the box cover 12 and the bottom plate 1. This helps to prevent the box assembly 3 from deforming or twisting due to vertical pressure, which would affect the normal use of the carton. By setting four reinforcing rods 11 at the four corners, the pressure is distributed, improving the overall stability and pressure resistance, and protecting the contents of the box. The plugging relationship between the reinforcing rods 11 and the mounting blocks 9 allows the reinforcing rods to be quickly disassembled when not in use, thus enabling reuse and improving practicality.
[0031] Specifically, the handle 5 is located inside the box assembly 3. The handle 5 is a hidden handle. The advantage is that, by setting the handle 5, when moving the carton, you can put your hand into the hidden handle 5 on the left and right sides to lift the carton, which makes it easy to carry and improves the portability of the carton. The hidden design does not take up space and improves space utilization.
[0032] Working principle: In use, after placing the base plate 1 in the designated position, the base 8 can be fixed to the top of the base plate 1 by inserting the limiting block 6 into the limiting groove 2 7. The foam base plate 1 has a certain degree of waterproofness. At this time, the box assembly 3 is inserted into the limiting groove 1 2, which can fix the box assembly 3 to the top of the base plate 1, which facilitates subsequent gluing and fixing. The waterproof layer 4 set on the outermost layer improves the waterproofness of the carton. Then, the reinforcing rod 11 is inserted into the limiting groove 3 10, which can fix the reinforcing rod 11 to the inside of the mounting block 9. At this time, the box assembly 3 and the reinforcing rod 11 are inserted into the limiting groove 4 13, which fixes the box cover 12 to the top of the box assembly 3 and the reinforcing rod 11. The vertical pressure resistance of the box assembly 3 is strengthened by the abutment between the reinforcing rod 11 and the box cover 12.
[0033] 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. An internally reinforced waterproof outer case comprising a bottom plate (1), characterized by: A limiting groove I (2) is formed at the top of the bottom plate (1). A box body assembly (3) is inserted and installed inside the limiting groove I (2). A waterproof layer (4) is arranged on the outer side of the box body assembly (3). Handles (5) are arranged on the left and right sides of the box body assembly (3). A limiting block (6) is fixedly installed at the top of the bottom plate (1). A base (8) is inserted and installed at the top of the limiting block (6). A limiting groove II (7) is formed at the bottom of the base (8). An installation block (9) is fixedly installed at the top of the base (8). A limiting groove III (10) is formed at the top of the installation block (9). A reinforcing rod (11) is inserted and installed inside the limiting groove III (10). A box cover (12) is arranged at the top of the box body assembly (3). A limiting groove IV (13) is formed at the bottom of the box cover (12).
2. An internally reinforced waterproof shipping case as defined in claim 1, wherein: The bottom plate (1) is a foam bottom plate, and the waterproof layer (4) is a polyethylene wax waterproof film waterproof layer.
3. The internally reinforced waterproof shipping case of claim 1, wherein: The box body assembly (3) is adapted to the limiting groove I (2), and the limiting block (6) is inserted and installed with the limiting groove II (7).
4. The internally reinforced waterproof shipping case of claim 1, wherein: The tops of the box body assembly (3) and the reinforcing rod (11) are inserted and installed with the limiting groove IV (13), and the cross section of the box cover (12) is in a "return" - shaped structure.
5. The internally reinforced waterproof shipping case of claim 1, wherein: There are four identical reinforcing rods (11). The four reinforcing rods (11) are respectively located at the four corners inside the box body assembly (3), and the reinforcing rods (11) are inserted and installed with the installation block (9).
6. An internally reinforced waterproof shipping case as defined in claim 1, wherein: The handle (5) is located inside the box body assembly (3), and the handle (5) is a concealed handle.