Anti-pressing structure and anti-pressing packaging bag

By using a dynamic buffer network composed of spherical airbags and connecting tubular films, along with a double-layer bag design, the problem of insufficient cushioning capacity of traditional packaging bags is solved. This achieves multi-level protection and reusable packaging bags, reducing transportation costs and meeting environmental protection requirements.

CN224171585UActive Publication Date: 2026-04-28ZHEJIANG ZUNHAO PACKAGING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZUNHAO PACKAGING CO LTD
Filing Date
2025-05-10
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional packaging bag designs have limited cushioning capacity when squeezed or impacted, making it difficult to meet the multi-level protection requirements of fragile items or precision instruments. Furthermore, existing technologies that add airbags or foam layers to packaging bags are complex in structure, cumbersome in operation, cannot be reused, increase costs, and are not environmentally friendly.

Method used

It employs a dynamic buffer network composed of multiple spherical airbags and connecting tubular films, combined with a double-layer bag design and a reusable sealing mechanism. Buffering is achieved through the interconnection of airbags, forming a dual protection system of inner sealing and outer buffering.

Benefits of technology

It achieves overall expansion and cushioning under slight compression, and localized reinforced cushioning under extreme compression, protecting the contents. The bag is also reusable, reducing maintenance costs and conforming to environmental protection principles.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224171585U_ABST
    Figure CN224171585U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of packaging bags, particularly relates to an anti-pressure structure and an anti-pressure packaging bag, and provides the following scheme aiming at the problems that an existing traditional packaging bag generally adopts a single-layer structural design, the buffering capacity is limited when the packaging bag is extruded or impacted, and internal articles are easy to damage, the anti-pressure structure comprises a plurality of spherical air bags, the plurality of spherical air bags are arranged in a rectangular array, the plurality of spherical air bags are mutually connected through the plurality of connecting tubular films, the plurality of spherical air bags are communicated with the connecting tubular films, and the spherical air bags distributed in the rectangular array and the connecting tubular films form a dynamic buffer network. When slightly extruded, air in the main hollow air bag and the auxiliary hollow air bag can be transferred to the main connecting air bag and the auxiliary connecting air bag to form an integral expansion buffer layer; under extreme extrusion, the spherical air bag achieves air intercommunication through the tubular thin film, a local strengthening buffering structure is formed, pressure is effectively dispersed, and the situation that articles are damaged due to concentrated stress is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, and in particular to a pressure-resistant structure and a pressure-resistant packaging bag. Background Technology

[0002] With the rapid development of the logistics and transportation industry, packaging bags, as the core protective carrier during the transportation of goods, directly affect the safety of transport and the user experience through their protective performance and ease of use. Traditional packaging bags typically employ a single-layer structure design, which has limited cushioning capacity when subjected to compression or impact, easily leading to damage to the contents. Especially when transporting fragile items or precision instruments, packaging bags made of a single material cannot meet the multi-level protection requirements. Furthermore, while some existing packaging bags improve their protective performance by adding air bladders or foam layers, they suffer from complex structures, cumbersome operation, and non-reusability, increasing usage costs and contradicting environmental protection principles.

[0003] To address the aforementioned problems, this utility model proposes a pressure-resistant packaging bag. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing packaging bags, which typically employ a single-layer structure. These bags have limited cushioning capacity under pressure or impact, making them prone to damaging the contents. This is especially problematic when transporting fragile items or precision instruments, as single-material packaging bags cannot meet multi-level protection requirements. Furthermore, while some existing packaging bags enhance protection by adding airbags or foam layers, these methods suffer from complex structures, cumbersome operation, and lack of reusability, increasing costs and contradicting environmental principles. Therefore, this invention proposes a pressure-resistant structure and a pressure-resistant packaging bag.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure-resistant structure, comprising:

[0007] Multiple spherical airbags are arranged in a rectangular array and interconnected by multiple connecting tubular membranes. The multiple spherical airbags are connected to the connecting tubular membranes.

[0008] A pressure-resistant packaging bag, comprising the pressure-resistant structure as described above, and further comprising:

[0009] The main outer bag and the auxiliary outer bag are located on one side of the main outer bag. A second connecting plastic film is fixedly connected between the auxiliary outer bag and one side of the main outer bag. The second connecting plastic film is used to connect the main outer bag and the auxiliary outer bag. Both the main outer bag and the auxiliary outer bag are connected to the second connecting plastic film.

[0010] It also includes a main inner bag and an auxiliary inner bag. The main inner bag is located inside the main outer bag, and the auxiliary inner bag is located inside the auxiliary outer bag. The auxiliary inner bag and the main inner bag are fixedly connected by the same first connecting plastic film. There is a space between the main inner bag and the main outer bag, and there is a space between the auxiliary inner bag and the auxiliary outer bag. The anti-pressure structure is located inside the space to achieve the protective function.

[0011] The main outer bag body has a second mounting hole on both sides, and the auxiliary outer bag body has a first mounting hole on both sides. The first mounting hole and the second mounting hole on the same side are provided with the same set of connecting components for connecting the main outer bag body and the auxiliary outer bag body.

[0012] The outer walls of the main outer bag and the auxiliary outer bag are provided with protective components to protect the packaging bag.

[0013] In one possible design, the connecting assembly includes an outer buckle and an inner buckle, one end of the outer buckle is inserted into the interior of a second mounting hole, one end of the inner buckle is inserted into the interior of a first mounting hole, a first groove is formed on one side of the inner buckle, and a second groove is formed on one side of the outer buckle, the first groove and the second groove engaging with each other.

[0014] In one possible design, a second Velcro fastener is fixedly installed on one inner wall of the first groove, and a first Velcro fastener is fixedly installed on one inner wall of the second groove. The first and second Velcro fasteners are adhered together. One end of the outer buckle is fixedly connected to a second limiting rubber block, and one end of the inner buckle is fixedly connected to a first limiting rubber block. The first and second limiting rubber blocks are located inside the auxiliary outer bag and the main outer bag, respectively, and are used to limit the inner and outer buckles.

[0015] In one possible design, the protective assembly includes multiple main hollow airbags integrally formed on the top and bottom of the main outer bag body, with multiple main connecting airbags fixedly connected between the multiple main hollow airbags, and multiple auxiliary hollow airbags integrally formed on the top and bottom of the auxiliary outer bag body, with multiple auxiliary connecting airbags fixedly connected between the multiple auxiliary hollow airbags.

[0016] In one possible design, a handle is fixedly installed on one side of the auxiliary outer bag.

[0017] In this application, when in use, the item is placed inside the main inner bag, and then the auxiliary outer bag and the auxiliary inner bag are folded over one side of the main outer bag. At this time, the setting of the first connecting plastic film and the second connecting plastic film can facilitate the normal folding process of the auxiliary outer bag and the auxiliary inner bag. At this time, the auxiliary outer bag seals one end of the main outer bag, thereby preventing the item from being exposed.

[0018] The corresponding inner and outer buckle straps are fastened together, and the first and second grooves are engaged. The outer and inner buckle straps are respectively inserted into the second mounting hole and the first mounting hole. The first and second limiting rubber blocks can prevent the outer and inner buckle straps from falling off. The first and second Velcro straps can be glued together to connect the auxiliary outer bag body and the main outer bag body. The bag can be reused.

[0019] At this time, the external main hollow airbags and auxiliary hollow airbags can protect the device. When subjected to strong compression, the gas inside the main hollow airbags and auxiliary hollow airbags will be squeezed into the corresponding main connecting airbags and auxiliary connecting airbags. The main connecting airbags and auxiliary connecting airbags can inflate and expand. Multiple main hollow airbags and multiple auxiliary hollow airbags inflate to form a whole. When subjected to greater compression, multiple spherical airbags can provide cushioning. Multiple connecting tubular membranes connect multiple spherical airbags, which can cause the spherical airbags under pressure to inflate and form a whole, achieving a cushioning function and protecting the internal items.

[0020] Beneficial effects: A dynamic buffer network is formed by the rectangular array of spherical airbags and the connecting tubular membrane. When subjected to slight compression, the gas in the main hollow airbag and the auxiliary hollow airbag can be transferred to the main connecting airbag and the auxiliary connecting airbag, forming an overall expansion buffer layer; under extreme compression, the spherical airbags achieve gas interconnection through the tubular membrane, forming a locally reinforced buffer structure, effectively dispersing pressure and preventing damage to items due to concentrated force.

[0021] Layered protection design: The main inner bag and the auxiliary inner bag form a double-sealed space. Combined with the external airbag protection components, it forms a dual protection system of "inner layer sealing + outer layer cushioning", which far exceeds the protection capability of traditional single-layer packaging bags.

[0022] Quick-sealing mechanism: Through the folding design of the auxiliary outer bag and the main outer bag, combined with the flexible connection of the first and second connecting plastic films, the bag can be sealed with one hand. The inner and outer buckle straps are fastened by the engagement of the first and second grooves, combined with the adhesion of the first and second Velcro straps, to achieve double fixation and ensure reliable sealing.

[0023] Anti-slip design: The first and second limiting rubber blocks are embedded inside the auxiliary outer bag and the main outer bag, respectively, to effectively prevent the buckle from slipping off and avoid the bag from opening accidentally during transportation.

[0024] Durable material selection: The main outer bag, auxiliary outer bag and connecting components are made of high-strength flexible plastic film, which can withstand multiple folding and opening operations and has a service life far exceeding that of traditional disposable packaging bags.

[0025] Easy to maintain: The airbag assembly and bag body are integrated into one design. If a part of the airbag is damaged, only the corresponding module needs to be replaced to restore the function. There is no need to scrap the whole bag, which significantly reduces maintenance costs.

[0026] Portable handle: An integrated handle on the outside of the outer bag makes it easy for users to carry and hang, especially suitable for high-frequency operations in express delivery and logistics scenarios.

[0027] Space optimization: The bag volume is reduced by more than 50% after folding, which facilitates storage and transportation and reduces space occupation. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of an anti-pressure structure and an anti-pressure packaging bag proposed in this utility model;

[0029] Figure 2 This is a side view of a pressure-resistant structure and a pressure-resistant packaging bag proposed in this utility model.

[0030] Figure 3 This is a three-dimensional structural diagram of an anti-pressure structure and an outer buckle and inner buckle in an anti-pressure packaging bag proposed by this utility model;

[0031] Figure 4 An exploded view of an anti-pressure structure and an anti-pressure packaging bag proposed in this utility model;

[0032] Figure 5 This is an exploded view of the anti-pressure structure and the spherical airbag and main connecting airbag in the anti-pressure packaging bag proposed in this utility model.

[0033] In the diagram: 1. Main outer bag; 2. Outer buckle strap; 3. Auxiliary outer bag; 4. Handle; 5. Auxiliary connecting airbag; 6. Auxiliary hollow airbag; 7. Main hollow airbag; 8. Main connecting airbag; 9. First limiting rubber block; 10. Inner buckle strap; 11. First groove; 12. First Velcro; 13. Second groove; 14. Second Velcro; 15. Second limiting rubber block; 16. Auxiliary inner bag; 17. First connecting plastic film; 18. First mounting hole; 19. Second connecting plastic film; 20. Second mounting hole; 21. Spherical airbag; 22. Main inner bag; 23. Connecting tubular film. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] Example 1

[0036] Reference Figures 1-5 A pressure-resistant structure, comprising:

[0037] Multiple spherical airbags 21 are arranged in a rectangular array and interconnected by multiple connecting tubular membranes 23. When subjected to greater compression, the multiple spherical airbags 21 can provide cushioning. Furthermore, the multiple connecting tubular membranes 23 connect the multiple spherical airbags 21, allowing the compressed portion of the spherical airbags 21 to inflate and form a unified whole, thus achieving a cushioning function and protecting the contents.

[0038] A packaging bag, including the pressure-resistant structure as described above, further includes:

[0039] The main outer bag 1 and the auxiliary outer bag 3 are located on one side of the main outer bag 1. The same second connecting plastic film 19 is fixedly connected between the auxiliary outer bag 3 and one side of the main outer bag 1. The second connecting plastic film 19 is used to connect the main outer bag 1 and the auxiliary outer bag 3. Both the main outer bag 1 and the auxiliary outer bag 3 are connected to the second connecting plastic film 19. When the item is placed inside the main inner bag 22, the auxiliary outer bag 3 and the auxiliary inner bag 16 are folded onto one side of the main outer bag 1. At this time, the setting of the first connecting plastic film 17 and the second connecting plastic film 19 can facilitate the normal folding process of the auxiliary outer bag 3 and the auxiliary inner bag 16. At this time, the auxiliary outer bag 3 seals one end of the main outer bag 1, thereby preventing the item from being exposed.

[0040] It also includes a main inner bag 22 and an auxiliary inner bag 16. The main inner bag 22 is located inside the main outer bag 1, and the auxiliary inner bag 16 is located inside the auxiliary outer bag 3. The auxiliary inner bag 16 and the main inner bag 22 are fixedly connected by the same first connecting plastic film 17. There is a space between the main inner bag 22 and the main outer bag 1, and there is a space between the auxiliary inner bag 16 and the auxiliary outer bag 3. The anti-pressure structure is located inside the space to achieve the protective function.

[0041] The main outer bag 1 has second mounting holes 20 on both sides, and the auxiliary outer bag 3 has first mounting holes 18 on both sides. The first mounting hole 18 and the second mounting hole 20 on the same side are equipped with the same set of connecting components for connecting the main outer bag 1 and the auxiliary outer bag 3. The connecting components include an outer buckle 2 and an inner buckle 10. One end of the outer buckle 2 is inserted into the second mounting hole 20, and one end of the inner buckle 10 is inserted into the first mounting hole 18. A first groove 11 is formed on one side of the inner buckle 10, and a second groove 13 is formed on one side of the outer buckle 2. The first groove 11 and the second groove 13 interlock. A second hook and loop fastener 14 is fixedly installed on one inner wall of the first groove 11, and a first hook and loop fastener 12 is fixedly installed on one inner wall of the second groove 13. The first hook and loop fastener 12 and the second hook and loop fastener 14 are adhered together. The outer buckle 2 is fixedly connected to a second limiting rubber block 15 at one end, and the inner buckle 10 is fixedly connected to a first limiting rubber block 9 at one end. The first limiting rubber block 9 and the second limiting rubber block 15 are located inside the auxiliary outer bag body 3 and the main outer bag body 1, respectively, to limit the inner buckle 10 and the outer buckle 2, fasten the corresponding inner buckle 10 and outer buckle 2 together, and make the first groove 11 and the second groove 13 fasten together. The outer buckle 2 and the inner buckle 10 are respectively inserted into the second mounting hole 20 and the first mounting hole 18. The setting of the first limiting rubber block 9 and the second limiting rubber block 15 can prevent the outer buckle 2 and the inner buckle 10 from falling off. The first Velcro 12 and the second Velcro 14 can be glued together to connect the auxiliary outer bag body 3 and the main outer bag body 1 together, and the bag can be reused.

[0042] The outer walls of the main outer bag 1 and the auxiliary outer bag 3 are provided with protective components to protect the packaging bag. The protective components include multiple main hollow airbags 7 integrally formed on the top and bottom of the main outer bag 1. Multiple main connecting airbags 8 are fixedly connected between the multiple main hollow airbags 7. Multiple auxiliary hollow airbags 6 are integrally formed on the top and bottom of the auxiliary outer bag 3. Multiple auxiliary hollow airbags 6 are fixedly connected between the multiple auxiliary hollow airbags 6. At this time, the external main hollow airbags 7 and auxiliary hollow airbags 6 can protect the device. When subjected to strong compression, the gas inside the main hollow airbags 7 and auxiliary hollow airbags 6 will be squeezed into the corresponding main connecting airbags 8 and auxiliary connecting airbags 5. The main connecting airbags 8 and auxiliary connecting airbags 5 can be inflated and expanded. The multiple main hollow airbags 7 and multiple auxiliary hollow airbags 6 inflate to form a whole.

[0043] This application can be used in the field of packaging bags, or in other fields applicable to this application.

[0044] Example 2

[0045] refer to Figures 1-5 An improvement based on Example 1: a pressure-resistant packaging bag, which is applied to the field of packaging bags, with a handle 4 fixedly installed on one side of the outer bag body 3.

[0046] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pressure-resistant structure, characterized in that, include: Multiple spherical airbags (21) are arranged in a rectangular array, and adjacent spherical airbags (21) are connected by a connecting tubular film (23) to form a grid-like buffer unit; When the buffer unit is compressed, the gas is dynamically distributed between the spherical airbags (21) through the connecting tubular film (23) to achieve multi-level deformation buffering.

2. A pressure-resistant packaging bag, comprising the pressure-resistant structure as described in claim 1, characterized in that, Also includes: The bag assembly includes a main outer bag (1) and an auxiliary outer bag (3). The auxiliary outer bag (3) is located on one side of the main outer bag (1). The same second connecting plastic film (19) is fixedly connected between the auxiliary outer bag (3) and one side of the main outer bag (1). The second connecting plastic film (19) is used to connect the main outer bag (1) and the auxiliary outer bag (3). The main outer bag (1) and the auxiliary outer bag (3) are both connected to the second connecting plastic film (19). It also includes a main inner bag (22) and an auxiliary inner bag (16). The main inner bag (22) is located inside the main outer bag (1), and the auxiliary inner bag (16) is located inside the auxiliary outer bag (3). The auxiliary inner bag (16) and the main inner bag (22) are fixedly connected by the same first connecting plastic film (17). There is a space between the main inner bag (22) and the main outer bag (1), and there is a space between the auxiliary inner bag (16) and the auxiliary outer bag (3). The pressure-resistant structure is located inside the space to achieve the protective function. The main outer bag (1) has a second mounting hole (20) on both sides, and the auxiliary outer bag (3) has a first mounting hole (18) on both sides. The first mounting hole (18) and the second mounting hole (20) on the same side are provided with the same set of connecting components for connecting the main outer bag (1) and the auxiliary outer bag (3). The outer walls of the main outer bag (1) and the auxiliary outer bag (3) are provided with protective components to protect the packaging bag.

3. The pressure-resistant packaging bag according to claim 2, characterized in that, The connecting assembly includes an outer buckle (2) and an inner buckle (10). One end of the outer buckle (2) is inserted into the interior of the second mounting hole (20), and one end of the inner buckle (10) is inserted into the interior of the first mounting hole (18). A first groove (11) is provided on one side of the inner buckle (10), and a second groove (13) is provided on one side of the outer buckle (2). The first groove (11) and the second groove (13) are engaged.

4. The pressure-resistant packaging bag according to claim 3, characterized in that, A second Velcro (14) is fixedly installed on one side of the inner wall of the first groove (11), and a first Velcro (12) is fixedly installed on one side of the inner wall of the second groove (13). The first Velcro (12) and the second Velcro (14) are bonded together. A second limiting rubber block (15) is fixedly connected to one end of the outer buckle (2), and a first limiting rubber block (9) is fixedly connected to one end of the inner buckle (10). The first limiting rubber block (9) and the second limiting rubber block (15) are located inside the auxiliary outer bag (3) and the main outer bag (1), respectively, and are used to limit the inner buckle (10) and the outer buckle (2).

5. The pressure-resistant packaging bag according to claim 2, characterized in that, The protective assembly includes multiple main hollow airbags (7) integrally formed on the top and bottom of the main outer bag (1). Adjacent main hollow airbags (7) are connected through main connecting airbags (8) to form a main protective air column. The auxiliary outer bag (3) has multiple auxiliary hollow airbags (6) integrally formed on the top and bottom. Adjacent auxiliary hollow airbags (6) are connected through auxiliary connecting airbags (5) to form an auxiliary protective air column.

6. The pressure-resistant packaging bag according to claim 2, characterized in that, A handle (4) is fixedly installed on one side of the auxiliary outer bag (3).