Anti-impact structure of corrugated carton
By installing protective air cushions on the outside of corrugated cardboard boxes and internal protective components, the problem of corrugated cardboard boxes being prone to deformation and breakage under multi-directional impacts is solved, achieving all-round protection of items and structural stability.
Patent Information
- Application Number
- CN202520233126.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-14
AI Technical Summary
The existing impact-resistant structure of corrugated cardboard boxes lacks a coordinated mechanism of external buffering and internal support, which makes them prone to localized stress concentration, deformation, and breakage under multi-directional impact, thus failing to effectively protect the contents.
External cushioning is provided by protective air cushions, internal protective components support the cardboard box structure, protective panels resist impact, honeycomb mesh absorbs shock, right-angle support plates enhance the strength at corners, and cross support bars construct a stable mechanical structure.
It provides comprehensive protection for the contents, with protective air cushions absorbing impact, internal components supporting the carton, evenly distributing pressure, preventing collapse, and improving the overall structural stability of the carton.
Smart Images

Figure CN223736514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard boxes, and more particularly to an impact-resistant structure for corrugated cardboard boxes. Background Technology
[0002] The impact-resistant structure of corrugated cardboard boxes refers to a structure that enhances the box's ability to resist external impacts during the design and manufacturing process, thereby protecting the contents from damage during transportation, storage, and handling.
[0003] Most existing corrugated cardboard box impact-resistant structures employ a single protective method. When subjected to impacts from multiple directions, due to the lack of an effective external buffer and internal support coordination mechanism, the cardboard box is prone to concentrated stress in localized areas, leading to deformation and breakage. This fails to adequately protect the contents. Furthermore, the single protective structure makes the cardboard box lack specificity in its protection. For items with high protection requirements, such as fragile items and precision instruments, it is difficult to provide accurate and efficient protection, which to some extent limits its application in the packaging of high-end, fragile items.
[0004] Therefore, addressing the issue that existing corrugated cardboard box impact-resistant structures often employ single protective measures and lack a coordinated mechanism of external buffering and internal support, leading to localized stress concentration, deformation, and breakage when subjected to multi-directional impacts, thus failing to adequately protect the contents, a new corrugated cardboard box impact-resistant structure can be designed. This structure provides external buffering through protective air cushions, which absorb and disperse impact forces through deformation upon impact, reducing the impact on the cardboard box itself. Internal protective components support the cardboard box from the inside, while protective panels directly resist impacts. The honeycomb mesh utilizes a unique structure for cushioning and shock absorption, and right-angle support plates and internal reinforcing ribs enhance the strength at the corners of the cardboard box, preventing collapse and providing comprehensive protection for the contents. Multiple sets of intersecting support bars construct a stable mechanical structure. Utility Model Content
[0005] In order to overcome the problem that existing corrugated cardboard box impact resistance structures mostly adopt a single protection method, lack a coordinated mechanism of external buffer and internal support, and are prone to localized stress concentration when subjected to multi-directional impact forces, resulting in deformation and breakage, and failing to fully protect the safety of the contents.
[0006] The technical solution of this utility model is as follows: a corrugated cardboard box impact-resistant structure, including a corrugated cardboard box body, a protective air cushion and an internal protective component; the corrugated cardboard box body is covered with a protective air cushion to protect the cardboard box from damage due to impact, the corrugated cardboard box body is equipped with an internal protective component to prevent the cardboard box from collapsing due to impact, the outer edges of the protective air cushion are rounded, an air inlet is connected to the outside of the protective air cushion, a sealing cap is screwed on the outside of the air inlet, and two sets of warning grooves are symmetrically opened on the outside of the protective air cushion.
[0007] Preferably, before use, the protective air cushion is placed over the corrugated cardboard box. The rounded corners of the outer edges of the protective air cushion reduce potential damage from sharp edges, making it safer during installation and reducing the risk of damage caused by collisions during transportation. The sealing cap is unscrewed from the air inlet, and air is inflated into the protective air cushion through the air inlet. After inflation, the sealing cap is screwed back onto the air inlet to prevent gas leakage and ensure that the protective air cushion remains inflated. When the corrugated cardboard box is impacted, the protective air cushion first absorbs the impact force. Because the air cushion is filled with gas, it has a certain degree of elasticity and cushioning capacity, and can disperse and absorb part of the impact force through its own deformation, preventing the impact force from acting directly on the corrugated cardboard box. At the same time, the internal protective components play a role, supporting the cardboard box structure inside the box and resisting the tendency of the box to collapse inward due to impact. Together with the protective air cushion, they maintain the overall structural integrity of the corrugated cardboard box.
[0008] Preferably, both ends of the corrugated cardboard box are provided with horizontal and vertical cardboard rings on the outer ring, and multiple sets of intersecting support strips are provided inside the horizontal and vertical cardboard rings.
[0009] Preferably, the corrugated cardboard box body has symmetrical through-cut lifting grooves on its exterior.
[0010] Preferably, the outer edges of the corrugated cardboard box are rounded, and the internal layers of the corrugated cardboard box are equipped with multiple sets of intersecting support strips.
[0011] Preferably, the internal protective components include protective panels, with protective panels installed at both ends of the inside of the corrugated cardboard box.
[0012] As a preferred option, the top of the protective panel is perforated with a honeycomb mesh.
[0013] As a preferred option, right-angle bracing plates are installed at both ends of the inner wall of the corrugated cardboard box, and reinforcing ribs are provided inside the right-angle bracing plates.
[0014] The beneficial effects of this utility model are as follows: Addressing the problem that existing technologies lack a coordinated mechanism of external buffering and internal support, leading to localized stress concentration and deformation or breakage of cardboard boxes under multi-directional impact, thus failing to adequately protect the safety of the contents, the protective air cushion provides external buffering. Upon impact, it absorbs and disperses the impact force through its own deformation, reducing the impact on the cardboard box itself. The internal protective components support the cardboard box from the inside, and the protective plate directly resists impact. The honeycomb mesh utilizes a unique structure for shock absorption, while the right-angle support plates and their internal reinforcing ribs enhance the strength at the corners of the cardboard box, preventing collapse and providing comprehensive protection for the contents. Multiple sets of intersecting support bars construct a stable mechanical structure, which can evenly distribute the force across the entire cardboard structure when the cardboard box is subjected to pressure and impact from various directions, avoiding excessive pressure on localized areas. Attached Figure Description
[0015] Figure 1 The diagram shown is a schematic representation of the overall structure of the impact-resistant corrugated cardboard box of this utility model.
[0016] Figure 2 The diagram shown is a schematic representation of the protective air cushion structure of the corrugated cardboard box impact-resistant structure of this utility model.
[0017] Figure 3 The diagram shown is a schematic representation of the protective plate structure of the corrugated cardboard box impact-resistant structure of this utility model.
[0018] Figure 4 The diagram shown is a schematic diagram of the right-angle support plate structure of the corrugated cardboard box impact-resistant structure of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. Corrugated cardboard box body; 2. Protective air cushion; 101. Lifting groove; 102. Vertical cardboard; 103. Horizontal cardboard; 201. Warning groove; 202. Air inlet; 301. Protective plate; 302. Honeycomb mesh; 303. Right-angle support plate. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-4In this embodiment, the corrugated cardboard box impact-resistant structure includes a corrugated cardboard box body 1, a protective air cushion 2, and internal protective components. The corrugated cardboard box body 1 is fitted with a protective air cushion 2 to protect the box from impact damage. An internal protective component is installed inside the corrugated cardboard box body 1 to prevent the box from collapsing due to impact. The protective air cushion 2 has rounded edges on all four sides. An air inlet 202 is connected to the outside of the protective air cushion 2, and a sealing cap is screwed onto the outside of the air inlet 202. Two sets of warning grooves 201 are symmetrically provided on the outside of the protective air cushion 2. Before use, the protective air cushion 2 is fitted over the corrugated cardboard box body 1. The rounded edges of the protective air cushion 2 reduce potential damage from sharp corners, making it safer during installation and reducing damage during transportation, etc. To mitigate the risk of damage to the air cushion due to corner impacts during the process, the sealing cap is unscrewed from the air inlet 202, and air is inflated into the protective air cushion 2 through the air inlet 202. After inflation, the sealing cap is screwed back onto the air inlet 202 to prevent gas leakage and ensure that the protective air cushion 2 remains inflated. When the corrugated carton is subjected to external impact, the protective air cushion 2 first bears the impact force. Because the air cushion is filled with gas, it has a certain elasticity and cushioning capacity, and can disperse and absorb part of the impact force through its own deformation, preventing the impact force from acting directly on the corrugated carton body 1. At the same time, the internal protective components play a role, supporting the carton structure inside the carton and resisting the tendency of the carton to collapse inward due to impact. Together with the protective air cushion 2, they maintain the overall structural integrity of the corrugated carton.
[0022] Please see Figures 1-2 In this embodiment, both ends of the corrugated cardboard box body 1 are provided with horizontal cardboard 103 and vertical cardboard 102 on the outer ring. The horizontal cardboard 103 and vertical cardboard 102 are provided with multiple sets of intersecting support strips. The multiple sets of intersecting support strips inside the horizontal cardboard 103 and vertical cardboard 102 form a stable mechanical structure. When the cardboard box is squeezed by external forces from all directions, the support strips can evenly distribute the pressure. The intersecting support strips have elastic deformation capabilities to a certain extent. When the cardboard box is subjected to slight collisions or vibrations, the support strips will undergo elastic deformation to buffer the external forces. The corrugated cardboard box body 1 is symmetrically provided with lifting grooves 101 on the outside. The lifting grooves 101 provide a point of leverage for the handlers. The hands can be naturally inserted into the grooves to firmly grasp the cardboard box. Compared with cardboard boxes without lifting grooves 101, there is no need to find additional handling tools or tie ropes when handling, which reduces the difficulty of handling.
[0023] Please see Figures 1-3In this embodiment, the outer edges of the corrugated cardboard box body 1 are all rounded, and the internal interlayer of the corrugated cardboard box body 1 is provided with multiple sets of intersecting support strips. During handling and transportation, the rounded corners avoid accidental injuries such as scratches to personnel caused by sharp edges and corners, and also reduce scratch damage to other items, protecting the safety of surrounding items and personnel. The internal protective components include protective plates 301. Protective plates 301 are installed at both ends of the inside of the corrugated cardboard box body 1. The protective plates 301 are installed at both ends of the inside of the cardboard box, which can restrict the movement space of the items inside the cardboard box. During transportation, the bumps and turns of the vehicle may cause the items to shake and collide inside the cardboard box.
[0024] Please see Figures 3-4 In this embodiment, a honeycomb mesh 302 is provided through the top of the protective plate 301. The unique hexagonal structure of the honeycomb mesh 302 has good elasticity and cushioning performance. When the corrugated cardboard box is subjected to external impact, the honeycomb mesh 302 can absorb and disperse the impact force through the deformation of its own structure. Right-angle support plates 303 are installed at both ends of the inner wall of the corrugated cardboard box body 1. The right-angle support plates 303 are provided with reinforcing ribs. The right-angle support plates 303 are installed at both ends of the inner wall of the corrugated cardboard box body 1. These are relatively weak parts of the cardboard box structure. The right-angle support plates 303 can provide additional support for the cardboard box, effectively preventing the cardboard box from deforming when it is squeezed by external force. Especially when stacked, it can greatly improve the cardboard box's ability to withstand the pressure from above, ensuring the overall structure of the cardboard box is stable, avoiding collapse, and ensuring the safety of the contents.
[0025] During operation, the protective air cushion 2 is placed over the corrugated cardboard box body 1, and air is injected into the protective air cushion 2 through the air inlet 202. After completion, the sealing cap is tightened to keep the protective air cushion 2 in an inflated state. The rounded corners of its outer perimeter can prevent damage caused by sharp edges during installation or handling. At the same time, the internal protective components are also installed in place. Protective plates 301 are installed at both ends inside the corrugated cardboard box body 1, and honeycomb mesh 302 runs through the top of the protective plates 301. Right-angle bracing plates 303 with reinforcing ribs are installed at the corners of both ends of the inner wall. The corrugated cardboard box body 1 has multiple sets of cross-bracing strips in its internal interlayer and the horizontal and vertical cardboard strips 103 and 102 arranged in a ring around both ends. When handling the corrugated cardboard box, workers can insert their hands into the symmetrically opened lifting slots 101 on the outside of the corrugated cardboard box body 1, which facilitates the application of force, ensures even force distribution, maintains body balance, and prevents excessive wear on the surface of the cardboard box. Because the outer edges of the corrugated cardboard box body 1 are rounded, it can prevent scratches to personnel or damage to other items during handling. In the event of bumps or collisions during transportation, the protective air cushion 2 will be the first to play its role. By dispersing and absorbing impact force through its own elastic deformation, the direct impact on the corrugated cardboard box body 1 is reduced. The internal protective components also operate simultaneously. The protective plate 301 resists the impact, the honeycomb mesh 302 uses its structure to buffer and reduce shock, and the right-angle support plate 303 and its internal reinforcing ribs enhance the structural strength of the cardboard box corners, disperse the impact force, and prevent the cardboard box from deforming and collapsing. At the same time, the internal interlayer and the cross support bars at both ends distribute the pressure evenly, avoid excessive local stress, and maintain the overall structural stability of the cardboard box. During storage, the cross support bars and right-angle support plate 303 of the cardboard box can withstand the pressure of the cardboard box above, ensuring the stability of stacking.
[0026] Through the above steps, before use, the protective air cushion 2 is placed on the outside of the corrugated cardboard box body 1. The rounded corners of the outer edges of the protective air cushion 2 reduce the damage that sharp corners may cause, making it safer during installation and reducing the risk of damage to the air cushion due to corner collisions during transportation. The sealing cap is unscrewed from the air inlet 202, and air is inflated into the protective air cushion 2 through the air inlet 202. After inflation, the sealing cap is screwed back onto the air inlet 202 to prevent gas leakage and ensure that the protective air cushion 2 remains inflated. When the corrugated cardboard box is impacted by external forces, the protective air cushion 2 first bears the impact force. Because the air cushion is filled with gas, it has a certain elasticity and cushioning capacity, and can disperse and absorb part of the impact force through its own deformation, preventing the impact force from acting directly on the corrugated cardboard box body 1. At the same time, the internal protective components play a role, supporting the cardboard box structure inside the box and resisting the tendency of the box to collapse inward due to impact. Together with the protective air cushion 2, they maintain the overall structural integrity of the corrugated cardboard box.
Claims
1. A corrugated box impact-resistant structure, comprising a corrugated box body (1); characterized in that: It also includes the protective air cushion (2) and internal protection components; corrugated box body (1) outside set for protection of the carton damaged by impact protective air cushion (2), corrugated box body (1) inside mounting to prevent carton collapse due to impact of internal protection components, protective air cushion (2) outside the four corners of the edge are all rounded, protective air cushion (2) outside the communication installation of air inlet nozzle (202), air inlet nozzle (202) outside the screw installation of sealing cover, protective air cushion (2) outside symmetrically opening two groups of warning slot (201), internal protection components including protective plate (301), corrugated box body (1) inside both ends are installed with protective plate (301), protective plate (301) top all through opening honeycomb net (302).
2. The corrugated carton impact resistant structure of claim 1, wherein: Corrugated box body (1) both ends outside annular are provided with horizontal paperboard (103) and vertical paperboard (102), horizontal paperboard (103) and vertical paperboard (102) inside are provided with multiple groups of cross support bar.
3. The corrugated carton impact resistant structure of claim 1, wherein: Corrugated box body (1) outside symmetrically through opening pull slot (101).
4. The corrugated carton impact resistant structure of claim 1, wherein: Corrugated box body (1) outside the four corners of the edge are all rounded, corrugated box body (1) inside the interlayer are all provided with multiple groups of cross support bar.
5. The corrugated carton impact resistant structure of claim 1, wherein: Corrugated box body (1) inner wall both ends corner are all installed with right angle support plate (303), right angle support plate (303) inside are provided with reinforcing rib.