Inflatable packaging bag

Abstract

The invention provides an inflatable packaging bag which comprises an inflatable bag body and a heat sealing set formed in the inflatable bag body, and the inflatable bag body is connected through heat sealing of the heat sealing set to form an inflatable air bag structure capable of being inflated. The inflatable bag body comprises a bag body bottom and at least two bag body side walls integrally extending from the bag body bottom, the at least two bag body side walls are oppositely arranged, and the side edges of the at least two bag body side walls are sealed by the heat sealing set to form a containing cavity with an opening. Wherein the heat-sealing group comprises a connecting heat-sealing group and a bending heat-sealing group, the bending heat-sealing group is arranged at the bag body bottom of the inflatable bag body, the bag body bottom can be bent at the position of the bending heat-sealing group, the connecting heat-sealing group is arranged at the bag body bottom and the bag body side wall, and the bending heat-sealing group can be bent at the position of the bending heat-sealing group. The bottom of the bag body is connected with part of the structure of the side wall of the bag body through the connecting heat sealing set.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging, in particular to an inflatable packaging bag. Background Art

[0002] In today's packaging field, inflatable packaging bags are a common form of packaging. Most of the existing designs adopt an integral structure, which is designed to adapt to the structures and shapes of various different items, thereby meeting the packaging needs of these items during transportation.

[0003] However, there are many problems in the actual transportation process. On the one hand, inflatable packaging bags often roll randomly or undergo relatively irregular changes. This means that when using them, they have to be laid flat manually, or with the help of mechanical devices and additional manpower to keep the packaging bags in a relatively flat and fixed state. Only in this way can the packaged objects be smoothly loaded into the inflatable packaging bags. In this way, a lot of manual packaging time is consumed, resulting in low packaging efficiency. Especially in the process of industrialized and batch packaging of packaged objects, this problem of low efficiency becomes more and more prominent, seriously slowing down the overall packaging progress and making it difficult to meet the growing packaging needs.

[0004] Further analysis of the existing inflatable packaging bag structure shows that there are still several prominent problems:

[0005] First, the center of gravity design is unreasonable. In terms of product structure design, the center of gravity distribution is not uniform enough, or the design does not fully consider how to make the packaging bag relatively balanced and stable. This makes the product prone to center of gravity shift, and it is easy to tilt or even fall during the packaging process. What's more critical is that during the packaging operation, the inflatable packaging bag cannot ensure that its center of gravity is relatively fixed, making it difficult to stably package the items, which undoubtedly has a great negative impact on packaging efficiency.

[0006] Secondly, there are deficiencies in the bottom of the bag. As for some structures that play a supporting role in the inflatable packaging bag, in the existing design structure, not enough attention has been paid to the key supporting contact surface and some structures that play a key supporting role. From the perspective of mechanical strength, the bottom strength of these bags is poor, and they are prone to deformation when subjected to a certain pressure. The friction generated is not enough to maintain stability, and the overall instability exists. In addition, the existing structure cannot adapt to the ground conditions of various packaging scenarios, and it is difficult to adapt to the flatness requirements of the packaging platform. In other words, under the current technical conditions, some structures that play a supporting role in the inflatable packaging bag cannot actually achieve the ideal supporting effect, which undoubtedly brings many inconveniences to the packaging work.

[0007] Third, it is significantly affected by dynamic external forces. Existing inflatable packaging bags are not optimized for external forces or impacts. After the packaged objects are placed in the inflatable packaging bags, the center of gravity of the product and the inflatable packaging bag as a whole will change accordingly. When the overall center of gravity changes, the entire inflatable packaging bag will become unstable. In this way, manual or mechanical assistance is still required during the entire packaging process. The inflatable packaging bag itself cannot independently solve the instability problem caused by the change in the center of gravity, which still greatly affects the packaging efficiency.

[0008] As society continues to move forward, both now and in the future, higher requirements are placed on packaging. Not only do we expect to achieve higher efficiency in the early stages of the packaging process, but we also need to fully consider the packaging efficiency in various dynamic usage scenarios. This requires that inflatable packaging bags have good stability in each packaging link. Therefore, it is urgent to redesign the existing inflatable packaging bags so that they can meet the existing and future industrialized, mass-produced and efficient transportation packaging needs. Summary of the invention

[0009] A major advantage of the present invention is that it provides an inflatable packaging bag, wherein the inflatable packaging bag can produce a three-dimensional packaging structure after being inflated by setting a connecting heat sealing group and a first bending heat sealing group, and the center of gravity after inflation is not shifted. When packaging the packaged objects, the center of gravity is relatively shifted to a lower position, which greatly enhances the stability of the entire packaged inflatable packaging bag, effectively overcomes the instability problem caused by the center of gravity shift in the prior art, and meets the needs of efficient and stable packaging.

[0010] Another advantage of the present invention is that it provides an inflatable packaging bag, wherein the bottom part of the bag body of the inflatable packaging bag has at least one first bending heat-sealing group, and the air column is bent to form a stable bottom of the bag body, and there is no squeezing between the two parts of the air column after bending, and it can form a flat structure with the packaging platform or the ground, so that the packaging bag has a relatively flat contact structure before and after packaging, thereby ensuring stability. Compared with the uneven contact structure of the air column as the force-bearing surface in the prior art, the present invention relies on the first bending heat-sealing group to optimize the bottom of the bag body, avoiding the situation where human assistance is required due to changes in the center of gravity and it is difficult to maintain stability by itself, and realizing the stable support of the packaging bag itself.

[0011] Another advantage of the present invention is that it provides an inflatable packaging bag, which changes the previous method of using air columns as support points. By optimizing the position and number of supporting feet and reducing the contact support area, the reaction force of the ground on the support point is more uniform, avoiding the local pressure concentration effect, improving stability, and optimizing the distribution of force.

[0012] Another advantage of the present invention is that it provides an inflatable packaging bag. Compared with previous air column contacts that are prone to torque changes and instability due to slight tilts or changes, the present invention can better match the center of gravity position through the design of support feet, achieve a good balance between the support point and the center of gravity, and solve the problem of unstable center of gravity changes.

[0013] Another advantage of the present invention is that it provides an inflatable packaging bag, wherein when the inflatable packaging bag uses air column surface contact as support, the friction force will be reduced due to surface irregularities or pressure dispersion. However, after the supporting feet of the present invention make concentrated contact, the pressure per unit contact area increases, the friction force is stronger, and the stability is further enhanced.

[0014] Another advantage of the present invention is that it provides an inflatable packaging bag, wherein the inflatable packaging bag support foot design is more likely to achieve multi-point contact when facing complex scenarios where the ground or packaging platform is slightly uneven, thereby avoiding the problem of partial structure suspension and affecting the stability of the overall packaging bag in previous air column contact, so that the bag can better adapt to a variety of scenarios and has stronger adaptability.

[0015] Another advantage of the present invention is that it provides an inflatable packaging bag, wherein the bottom of the bag body of the inflatable packaging bag is provided with at least one first bending heat sealing group to form a supporting surface, which can not only better stabilize the packaging bag, but also simultaneously avoid the air columns before and after adjacent bends from contacting and squeezing each other, further improving the stability and reliability of the bottom of the bag body and ensuring the smooth progress of the packaging process.

[0016] Another advantage of the present invention is that it provides an inflatable packaging bag, wherein the inflatable packaging bag is provided with a load-bearing portion, which is formed by a layer of film attached to the packaging bag within the entire packaging cavity. When packaging the packaged object, the film can fit the packaged object, making it difficult for the packaged object to shift, thereby ensuring that the overall center of gravity does not shift, significantly improving the stability of the entire packaged inflatable packaging bag, and improving the packaging quality.

[0017] Another advantage of the invention is that it provides an inflatable packaging bag, wherein the width of the support portion of the inflatable packaging bag that does not fit the air column of the packaging bag in the accommodating cavity of the inflatable packaging bag has a reasonable range, that is, the width of the portion that does not fit the air column of the packaging bag is ≥ the width of the support bottom minus the distance of an air column diameter, thereby avoiding the problem of affecting the packaging speed due to the width being too narrow and the width of the accommodating cavity being too small, ensuring that the packaging operation can be carried out efficiently, and taking into account both packaging stability and efficiency.

[0018] Another advantage of the invention is that it provides an inflatable packaging bag, wherein the bearing portion of the inflatable packaging bag generates a portion that does not fit the air column of the packaging bag through a film heat sealing group, and the lowest position of the film heat sealing group is not lower than the position of the first bending heat sealing group, thereby ensuring that the film structure can play its due role, reasonably arranging the heat sealing structure, and ensuring the effectiveness of the entire packaging structure.

[0019] Another advantage of the invention is that it provides an inflatable packaging bag, wherein the inflatable packaging bag adopts a specific heat-sealing bending method at the heat-sealing points or heat-sealing lines at the bending corners to prevent the inflatable packaging bag from being broken during transportation or friction. The structural integrity and durability of the inflatable packaging bag are guaranteed from the details, its service life is extended, and it is ensured that it can continue to function stably during the packaging and transportation processes.

[0020] According to one aspect of the present invention, an inflatable packaging bag of the present invention that can achieve the aforementioned purpose and other purposes and advantages includes an inflatable bag body and a heat sealing group formed on the inflatable bag body, wherein the inflatable bag body is heat-sealed and connected by the heat sealing group to form an inflatable airbag structure that can be inflated, the inflatable bag body includes a bag body bottom and at least two bag body side walls extending integrally from the bag body bottom, wherein the at least two bag body side walls are arranged opposite to each other, and the side edges of the at least two bag body side walls are sealed by the heat sealing group to form a accommodating cavity with an opening, wherein the heat sealing group includes a connecting heat sealing group and a bending heat sealing group, wherein the bending heat sealing group is arranged at the bag body bottom of the inflatable bag body, and the bag body bottom can be bent at the position of the bending heat sealing group, wherein the connecting heat sealing group is arranged at the bag body bottom and the bag body side walls, and the connecting heat sealing group connects the bag body bottom and the bag body side walls of the bag body, so that the inflatable bag body forms a three-dimensional packaging structure.

[0021] According to one embodiment of the present invention, the bending heat sealing group includes at least a first bending heat sealing group, a second bending heat sealing group and a third bending heat sealing group, wherein the at least one first bending heat sealing group is formed between the second bending heat sealing group and the third bending heat sealing group, the second bending heat sealing group is formed between the first bag body side wall and the bag body bottom, and the third bending heat sealing group is formed between the second bag body side wall and the bag body bottom.

[0022] According to one embodiment of the present invention, the bending heat sealing group includes a first bending heat sealing group, and the air column segment includes a first air column segment and a second air column segment, wherein the first air column segment and the second air column segment are separated by the first bending heat sealing group.

[0023] According to one embodiment of the present invention, the bending heat sealing group includes two groups of first bending heat sealing groups, wherein the air column segment includes a first air column segment, a second air column segment and a third air column segment, wherein one group of the first bending heat sealing groups is spaced between the first air column segment and the third air column segment, and the other group of the first bending heat sealing lines is spaced between the second air column segment and the third air column segment.

[0024] According to one embodiment of the present invention, the bag body side wall further includes a first bag body side wall and a second bag body side wall, wherein the first bag body side wall and the second bag body side wall are symmetrically arranged relative to the bag body bottom, and the first bag body side wall extends integrally from one end of the bag body bottom, and the second bag body side wall extends integrally from the other end of the bag body bottom.

[0025] According to one embodiment of the present invention, the connecting heat sealing group further includes a first connecting heat sealing group and a second connecting heat sealing group, wherein the first connecting heat sealing group is arranged on the first air column segment and the first bag body side wall, so that the first air column segment extends inwardly and obliquely upwardly from the bottom of the first bag body side wall; the second connecting heat sealing group is arranged on the second air column segment and the second bag body side wall, so that the second air column segment extends inwardly and obliquely upwardly from the bottom of the second bag body side wall, and thus the bottom of the bag body is formed into a three-dimensional support structure by the connecting heat sealing group.

[0026] According to one embodiment of the present invention, the bottom of the bag body further includes a first supporting foot and a second supporting foot, wherein the first supporting foot is formed at the connecting position of the first air column segment and the first bag body side wall; the second supporting foot is formed at the connecting position of the second air column segment and the second bag body side wall.

[0027] According to one embodiment of the present invention, the second bending heat sealing group is arranged on the first supporting foot, the third bending heat sealing group is arranged on the second supporting foot at the bottom of the bag body, the first supporting foot is bent inward along the second bending heat sealing group, and the second supporting foot is bent inward along the third bending heat sealing group.

[0028] According to one embodiment of the present invention, the first connecting heat sealing group of the connecting heat sealing group is formed on the first supporting foot, and the first connecting heat sealing group extends from the second bending heat sealing group toward the first bending heat sealing group; the second connecting heat sealing group of the connecting heat sealing group is formed on the second supporting foot, and the second connecting heat sealing group extends from the third bending heat sealing group toward the first bending heat sealing group.

[0029] According to one embodiment of the present invention, the length of the first connecting heat sealing group is half of the length of the first air column segment between the first bending heat sealing group and the second bending heat sealing group; the length of the second connecting heat sealing group is half of the length of the second air column segment between the first bending heat sealing group and the third bending heat sealing group.

[0030] According to one embodiment of the present invention, the inflatable bag body further includes at least two bag body films, wherein the at least two bag body films are arranged relative to each other, and the heat sealing group is formed on the bag body film by heat sealing, thereby forming the bag body side wall and the bag body bottom of the inflatable bag body.

[0031] According to one embodiment of the present invention, the heat sealing group further includes an air column heat sealing group, wherein the air column heat sealing group is formed on the bag body film in a transverse or longitudinal manner, and the air column heat sealing group includes a plurality of air column heat sealing lines, and any two adjacent air column heat sealing lines are spaced to form an air column structure.

[0032] According to one embodiment of the present invention, the bending heat sealing group comprises a plurality of bending heat sealing units spaced apart from each other, wherein the bending heat sealing units are heat sealing points or heat sealing lines; the connecting heat sealing group comprises a plurality of connecting heat sealing units spaced apart from each other, wherein the connecting heat sealing units are heat sealing points or heat sealing lines.

[0033] According to one embodiment of the present invention, the bending heat sealing unit of the bending heat sealing group and the connecting heat sealing unit of the connecting heat sealing group are formed in the air column structure, and the lengths of the bending heat sealing unit and the connecting heat sealing unit are smaller than the width of the air column structure.

[0034] According to an embodiment of the present invention, the inflatable packaging bag further comprises a load-bearing portion, wherein the load-bearing portion is arranged on the inner side of the side wall of the bag body, and the load-bearing portion forms a buffer cavity with a buffering function on the inner side of the side wall of the bag body.

[0035] According to an embodiment of the present invention, the bearing portion further includes a fitting end and a free end, wherein the fitting end is fitted with the side wall of the bag body, and the free end is separated from the side wall of the bag body.

[0036] According to an embodiment of the present invention, the width of the free end of the bearing portion is greater than or equal to the difference between the width of the bottom of the bag body and a diameter of an air column.

[0037] According to an embodiment of the present invention, the heat sealing group further comprises a film heat sealing group, wherein the film heat sealing group is arranged between the carrying portion and the bag film.

[0038] According to one embodiment of the present invention, the heat sealing group is further provided with two end heat sealing lines, wherein the end heat sealing lines are arranged at the ends of the inflatable bag body.

[0039] According to one embodiment of the present invention, the inflatable packaging bag further includes an inflation valve, wherein the inflation valve is arranged between the bag body film of the inflatable bag body, the inflation valve has an inflation channel, and the inflation channel of the inflation valve is connected to the air column structure.

[0040] Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and the accompanying drawings.

[0041] These and other objects, features and advantages of the present invention will be more fully understood from the following detailed description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of an inflatable packaging bag according to the first preferred embodiment of the present invention.

[0043] Figure 2A and Figure 2B It is a three-dimensional cross-sectional view of the inflatable packaging bag according to the first preferred embodiment of the present invention.

[0044] Figure 3 It is a schematic plan view of the structure of the inflatable packaging bag according to the first preferred embodiment of the present invention.

[0045] Figure 4 It is a front view of the inflatable packaging bag according to the first preferred embodiment of the present invention.

[0046] Figure 5 It is a detailed schematic diagram of the heat-sealing structure of the inflatable packaging bag according to the first preferred embodiment of the present invention. DETAILED DESCRIPTION

[0047] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0048] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0049] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0050] Referring to the drawings of this application specification Figures 1 to 4 As shown, an inflatable packaging bag according to the first preferred embodiment of the present application is explained in the following description. The inflatable packaging bag comprises an inflatable bag body 10 and a heat sealing group 20 formed on the inflatable bag body 10, wherein the inflatable bag body 10 is connected by heat sealing of the heat sealing group 20 to form an inflatable airbag structure that can be inflated, and a packaging bag structure that can accommodate packaged objects.

[0051] Specifically, the inflatable bag body 10 includes a bag body bottom 11 and at least two bag body side walls 12 extending integrally from the bag body bottom 11, wherein the at least two bag body side walls 12 are arranged opposite to each other, and the sides of the at least two bag body side walls 12 are sealed by the heat sealing group to form a receiving cavity 100 with an opening, and the packaged object can be placed in the receiving cavity 100. The bag body bottom 11 is located at the end of the at least two bag body side walls 12 to provide support and protection for the packaged object, and the at least two bag body side walls 12 are located on both sides of the packaged object to provide protection and cushioning for the packaged object.

[0052] Correspondingly, in this preferred embodiment of the present application, the bag body side wall 12 further includes a first bag body side wall 121 and a second bag body side wall 122, wherein the first bag body side wall 121 and the second bag body side wall 122 are symmetrically arranged relative to the bag body bottom 11, and the first bag body side wall 121 extends integrally from one end of the bag body bottom 11, and the second bag body side wall 122 extends integrally from the other end of the bag body bottom 11.

[0053] The heat sealing group 20 includes a connecting heat sealing group 21 and a bending heat sealing group 22, wherein the bending heat sealing group 22 is arranged at the bag bottom 11 of the inflatable bag body 10, and the bag bottom 11 can be bent at the position of the bending heat sealing group 22 to form a stable bag bottom; wherein the connecting heat sealing group 21 is arranged at the bag bottom 11 and the bag side wall 12, and the connecting heat sealing group 21 connects the bag bottom 11 and the partial structure of the bag side wall 12, thereby allowing the inflatable bag body 10 to form a three-dimensional packaging structure.

[0054] like Figure 3 As shown, the bending heat sealing group 22 includes at least a first bending heat sealing group 221, a second bending heat sealing group 222 and a third bending heat sealing group 223, wherein the at least one first bending heat sealing group 221 is formed between the second bending heat sealing group 222 and the third bending heat sealing group 223, the second bending heat sealing group 221 is formed between the first bag body side wall 121 and the bag body bottom 11, and the third bending heat sealing group 223 is formed between the second bag body side wall 122 and the bag body bottom 11.

[0055] It can be understood that the bag bottom 11 is formed by the first bending heat sealing group 221, the second bending heat sealing group 222 and the third bending heat sealing group 223 of the bending heat sealing group 22, and the bag bottom 11 forms a bendable interval at the position of the first bending heat sealing group 221, the second bending heat sealing group 222 and the third bending heat sealing group 223, and is bent along the interval.

[0056] The bag bottom 11 is divided into at least two air column segments 111 by the bending and heat sealing group 22, wherein the at least two air column segments 111 are connected in sequence to form an adjustable bag bottom.

[0057] like Figure 2A As shown, in this preferred embodiment of the present application, the bending heat sealing group 22 includes a first bending heat sealing group 221, and the air column segment 111 includes a first air column segment 1111 and a second air column segment 1112, wherein the first air column segment 1111 and the second air column segment 1112 are separated by the first bending heat sealing group 221.

[0058] like Figure 2BAs shown, in another optional embodiment of the present application, the bending heat sealing group 22 includes two groups of first bending heat sealing groups 221, wherein the air column segment 111 includes a first air column segment 1111, a second air column segment 1112 and a third air column segment 1113, wherein one group of the first bending heat sealing groups 221 is spaced between the first air column segment 1111 and the third air column segment 1113, and the other group of the first bending heat sealing lines 221 is spaced between the second air column segment 1112 and the third air column segment 1113.

[0059] The third air column segment 1113 formed between the two first bending heat sealing groups 221 of the bending heat sealing group 22 becomes the bottom support surface of the inflatable packaging bag, which can provide better stability and avoid contact between adjacent air columns before and after the bending to avoid mutual squeezing.

[0060] The connecting heat sealing group 21 is arranged at the bag bottom 11 and the bag side wall 12, and is used to connect the bag bottom 11 and the bag side wall 12, so that the bag bottom 11 forms a three-dimensional supporting structure.

[0061] Specifically, the connecting heat sealing group 21 further includes a first connecting heat sealing group 211 and a second connecting heat sealing group 212, wherein the first connecting heat sealing group 211 is arranged at the first air column segment 1111 and the first bag body side wall 121, so that the first air column segment 1111 extends inwardly and obliquely upwardly from the bottom of the first bag body side wall 121; the second connecting heat sealing group 212 is arranged at the second air column segment 1112 and the second bag body side wall 122, so that the second air column segment 1112 extends inwardly and obliquely upwardly from the bottom of the second bag body side wall 122, and thus the bag body bottom 11 is formed into a three-dimensional support structure by the connecting heat sealing group 21.

[0062] In the actual application of the inflatable packaging bag, when the packaged object is placed into the containing cavity and once the object contacts the first bending heat sealing group 221, due to the gravity of the object itself, pressure will be applied to the first bending heat sealing group 221. This pressure will be transmitted along the structural path to the air column between the first bending heat sealing group 221 and the second bending heat sealing group 222, and to the air column between the first bending heat sealing group 221 and the third bending heat sealing group 223.

[0063] The first connecting heat sealing group 211 and the second connecting heat sealing group 212 of the connecting heat sealing group 21 can effectively pull the first bag body side wall 121 and the second bag body side wall 122 to tilt inward during the pressure conduction process. This inward tilting movement trend allows the air column to fit tightly around the packaged object, thereby better wrapping the packaged object and providing it with all-round protection. During the whole process, the relative position of the gravity of the packaged object does not change, and the first bag body side wall 121 and the second bag body side wall 122 will not tilt outward and become unstable. Even if there is a position change, it is adjusted in the direction of tilting inward, further enhancing the stability and tightness of the package.

[0064] The bag bottom 11 further includes a first support foot 1113 and a second support foot 1114, wherein the first support foot 1113 is formed at the connection position of the first air column section 1111 and the first bag side wall 121; the second support foot 1114 is formed at the connection position of the second air column section 1112 and the second bag side wall 122. The bag bottom 11 is further provided with a suspended space 1115, wherein the suspended space 1115 is formed between the first support foot 1113 and the second support foot 1114, and is located below the first air column section 1111 and the second air column section 1112. The first support foot 1113 and the second support foot 1114 of the bag bottom 11 serve as force support points of the inflatable packaging bag, providing stable support for the packaged objects.

[0065] The second bending heat sealing group 222 is arranged on the first supporting foot 1113, and the third bending heat sealing group 223 is arranged on the second supporting foot 1114 of the bag bottom 11, the first supporting foot 1113 is bent inward along the second bending heat sealing group 222, and the second supporting foot 1114 is bent inward along the third bending heat sealing group 223.

[0066] It is worth mentioning that the bottom 11 of the bag body is heat-sealed and connected by the connecting heat sealing group 21 and the bending heat sealing group 22 to form the first supporting foot 1113 and the second supporting foot 1114, wherein the first supporting foot 1113 and the second supporting foot 1114 serve as supporting points of the inflatable packaging bag to provide force support for the packaged objects.

[0067] It is worth mentioning that the bag bottom 11 as the bottom support structure of the inflatable packaging bag provides stable support for the packaged object, and the connecting heat sealing group 21 and the bending heat sealing group 22 arranged at the bag bottom 11 form the first supporting foot 1113 and the second supporting foot 1114, that is, the first supporting foot 1113 and the second supporting foot 1114 serve as the force support points of the inflatable packaging bag. By reducing the concentrated force on the contact surface to the support point, the anti-overturning moment of the support point is optimized.

[0068] It can be understood that, in this preferred embodiment of the present application, the first supporting foot 1113 and the second supporting foot 1114 ensure the range of the supporting base surface, and even if the center of gravity moves, the projection may still be within the supporting base surface.

[0069] In the theory of mechanics, a smaller support contact surface can bring many advantages. In terms of the torque balance between the center of gravity and the support point, it can make the relationship between the center of gravity and the support point more stable and reasonable. When encountering external interference or the position of internal items changes, the smaller support contact surface can more accurately adjust the distribution of the support force to ensure that the torque is always balanced, effectively preventing the packaging bag from overturning or shifting due to torque imbalance.

[0070] In terms of the friction concentration effect, the smaller support contact surface increases the pressure per unit area. According to the basic principle of friction, the friction will increase accordingly when the pressure increases. This means that the packaging bag can be more firmly kept in place when placed on the packaging platform or during transportation, reducing the risk of sliding due to insufficient friction. If the heat sealing group is not connected, the support foot structure originally constructed by the first bending heat sealing group will lose effective constraints and guidance, and gradually tend to or directly become a form of air cylinder support. However, air cylinder support has been proven to have many problems in the previous existing technology, such as unstable support, easy displacement of the center of gravity due to uneven force, and difficulty in fixing the position due to insufficient friction. These problems will seriously affect the packaging effect and transportation safety of the inflatable packaging bag, and cannot meet the needs of modern industrialization and efficient transportation. Therefore, the design of connecting the heat sealing group is of vital importance to the overall performance improvement of the inflatable packaging bag, and is one of the key factors to ensure packaging stability and reliability.

[0071] It is worth mentioning that in the preferred embodiment of the present application, when the inflatable packaging bag is inflated, the connecting heat sealing group 21 and the bending heat sealing group 22 change the structure of the inflatable bag body 10 of the inflatable packaging bag, thereby forming a three-dimensional packaging structure. This three-dimensional structure changes the plane force mode of the traditional inflatable packaging bag, making the packaging bag have better stability in space.

[0072] During the inflation process, the gas evenly fills each gas column, and the gas column at the location of the first bending heat sealing group 221 is bent to form a specific angle and shape, providing a stable bottom support structure for the entire packaging bag. The connecting heat sealing group 22 further strengthens the integrity and stability of this support structure. Due to the design of these heat sealing groups, the gas pressure distribution inside the inflatable packaging bag is more reasonable after the inflation is completed, and the force on each part is more uniform, thereby ensuring that the center of gravity does not shift.

[0073] When packaging the packaged object, the weight of the packaged object will have an impact on the packaging bag, but because of the stable structure constructed by the connecting heat sealing group 21 and the first bending heat sealing group 221, the weight of the packaged object can be effectively dispersed and carried. Compared with the traditional inflatable packaging bag, the center of gravity of the inflatable packaging bag of the present invention is relatively offset to a lower position after packaging the items. This is because the structural design of the inflatable packaging bag in this preferred embodiment of the present application makes the center of gravity of the packaged object closer to the bottom 11 of the bag body of the packaging bag, which reduces the center of gravity height and reduces the risk of tipping due to excessively high center of gravity.

[0074] For example, during transportation, when encountering vehicle bumps or external force impacts, traditional inflatable packaging bags may roll over or tilt due to unstable center of gravity, thereby causing damage to the packaged items. Since the inflatable packaging bag of this preferred embodiment of the present application has a stable three-dimensional structure and low center of gravity offset characteristics, it can better resist these external force interferences, maintain its own stability, ensure the safety of the packaged items during transportation, greatly improve the reliability of packaging and transportation efficiency, and meet the needs of industrialized and batch packaging and transportation.

[0075] In the preferred embodiment of the present application, the first bending heat sealing group 221 is provided at the bottom 11 of the bag body of the inflatable packaging bag, and the first connecting heat sealing group 211 is provided at the first air column section 1111 and the first bag body side wall 121, and the second connecting heat sealing group 212 is provided at the second air column section 1112 and the second bag body side wall 122, so that the bottom 11 of the bag body is bent upward along the position of the first bending heat sealing group 221, thereby forming the suspended space 1115 below the bottom 11 of the bag body, and constructing a stable bag body bottom support structure based on this. During the bending process, due to the precise control of the heat sealing process, the two parts of the air column after bending can maintain an appropriate spatial relationship, effectively avoiding the occurrence of mutual extrusion. This non-extrusion state is crucial to maintaining the structural integrity and mechanical properties of the air column, ensuring that each air column can fully play its due role in the support process and provide a stable and reliable support force for the bottom 11 of the bag body.

[0076] At each stage of packaging, whether in the initial state where the packaged object has not yet been placed, or in the process of packaging the object, the support structure formed by the first bending heat sealing group 221 can fit closely with the packaging platform or the ground to form a flat structure. This flat contact structure enables the packaging bag to evenly disperse its own weight and the weight of the packaged object when placed, avoiding the problem of excessive local pressure or center of gravity shift caused by uneven contact. In contrast, if there is no first bending heat sealing group 221, the bottom 11 of the bag body only relies on the air column as the force-bearing surface to contact the packaging platform or the ground. Due to the cylindrical shape of the air column itself, its surface is uneven. In practical applications, this uneven air column surface is difficult to form a stable large-area fit with the packaging platform or the ground, and it is easy to have a situation of partial suspension or poor contact. When the packaging bag is subjected to external force or the weight distribution of the internal items changes, the air column is unevenly stressed, which leads to a change in the center of gravity. At this time, manual adjustment and assistance are required to maintain the stability of the packaging bag, which undoubtedly greatly reduces the packaging efficiency and increases the packaging cost and labor cost.

[0077] Therefore, in this preferred embodiment of the present application, by providing the first bending heat sealing group 221, the air column support structure is transformed into a double support foot (i.e., the first support foot 1113 and the second support foot 1114) force-bearing structure, which can significantly improve the stability of the packaging bag. The principle is mainly reflected in the following aspects:

[0078] In the existing air column support design, the air column at the bottom of the bag body serves as the support point, and its contact surface with the packaging platform or the ground is the entire side of the air column. Since the size and length of the air column of different sized packaging bags after inflation are different, coupled with the unevenness of the packaging plane and the deformation of the packaging material itself after inflation, there is often a phenomenon of local force concentration when the air column contacts the ground. For example, in some long inflatable packaging bags, the middle part of the air column may sink due to the large pressure, resulting in relatively small forces on both sides. This uneven force distribution greatly reduces the stability of the overall support structure. After adopting the support foot design, this problem of local pressure concentration can be effectively avoided by reasonably designing the position and number of the support feet. After reducing the contact area, the reaction force of the ground acting on the support feet can be distributed more evenly, and each support foot can bear a relatively balanced weight, thereby optimizing the distribution of force and significantly improving the stability of the packaging bag.

[0079] In the previous air column surface contact mode, the center of gravity position of the packaging bag was relatively unstable. Once the packaging bag tilts slightly or the center of gravity changes due to reasons such as the movement of internal items, the change in the position of the center of gravity projection on the support surface will cause a large change in torque due to the large and irregular contact area between the air column and the ground. This imbalance of torque will further aggravate the tilt of the packaging bag, ultimately leading to instability or even tipping. In the support foot structure, by accurately designing the position and height of the support feet, a good geometric relationship can be formed between the support point and the center of gravity. When the center of gravity shifts slightly, the support foot can generate a corresponding reaction torque in time to offset the instability caused by the center of gravity shift, ensuring that the torque balance is always maintained between the support point and the center of gravity, effectively solving the instability problem caused by the change of the center of gravity, so that the packaging bag can maintain a stable posture under various conditions.

[0080] When the air column surface is in contact as support, the friction between the air column and the packaging platform or the ground is relatively small due to the irregularity of the air column surface and the pressure dispersed on the entire side of the air column. In the actual transportation process, especially when there is a certain vibration or external force, the small friction force is difficult to effectively prevent the sliding or displacement of the packaging bag. When it is transformed into concentrated contact of the support feet, the pressure per unit contact area increases significantly. According to the calculation formula of friction, the friction force is proportional to the pressure, so the friction between the support feet and the ground is also increased accordingly. This enhanced friction can better fix the position of the packaging bag, making it more stable on the packaging platform or during transportation, and reducing the risk of damage to the packaged objects due to accidental sliding or displacement.

[0081] In actual packaging and transportation environments, there are often small areas of unevenness on the packaging platform or the ground. For existing air column surface contact support structures, since it is difficult for the air column to completely fit the uneven surface, part of the air column may be suspended in the air, resulting in poor overall stability of the packaging bag. The support foot design has better adaptability. When faced with such complex scenarios, multiple support feet can automatically adjust the contact position and angle according to the unevenness of the ground, making it easier to achieve multi-point contact. Even when there is a certain slope or protrusion on the ground, the support feet can ensure stable contact with the ground through their own adjustments, so that the packaging bag always remains in a balanced state, effectively improving the adaptability and stability of the packaging bag in different environments.

[0082] Therefore, the bottom 11 of the bag body forms a supporting structure of the first supporting leg 1113 and the second supporting leg 1114 through the bending heat sealing group and the connecting heat sealing group, which plays a key role in optimizing the distribution of force, achieving the torque balance between the center of gravity and the support point, enhancing friction and improving adaptability, greatly improving the stability of the inflatable packaging bag during packaging and transportation, providing more reliable protection for the packaged objects, and also improving the efficiency and convenience of packaging operations.

[0083] As shown in Figure 2 and Figure 3 As shown, in this preferred embodiment of the present application, the first connecting heat sealing group 211 of the connecting heat sealing group 21 is formed on the first supporting foot 1113, and the first connecting heat sealing group 211 extends from the second bending heat sealing group 222 to the direction of the first bending heat sealing group 221. Preferably, the length of the first connecting heat sealing group 211 is half of the length of the first air column section 1111 between the first bending heat sealing group 221 and the second bending heat sealing group 222. It is worth mentioning that the length of the first connecting heat sealing group 211 is the longest from the first bending heat sealing group 221 to the second bending heat sealing group 222.

[0084] The second connecting heat sealing group 212 of the connecting heat sealing group 21 is formed on the second supporting leg 1114, and the second connecting heat sealing group 212 extends from the third bending heat sealing group 223 to the first bending heat sealing group 221. Preferably, the length of the second connecting heat sealing group 212 is half of the length of the second air column section 1112 between the first bending heat sealing group 221 and the third bending heat sealing group 223. It is worth mentioning that the length of the second connecting heat sealing group 212 is the longest from the first bending heat sealing group 221 to the third bending heat sealing group 223.

[0085] In this preferred embodiment of the present application, the second bending heat sealing group 222 arranged at the first bag body side wall 121 of the first air column segment 1111 and the bag body side wall 12 is an intermittent point sealing or line sealing structure; the third bending heat sealing group 223 arranged at the second bag body side wall 122 of the second air column segment 1112 and the bag body side wall 12 is an intermittent point sealing or line sealing structure.

[0086] It can be understood that the point sealing or line sealing structure of the second bending heat sealing group 222 and the third bending heat sealing group 223 can be a point sealing or line sealing structure at any position, or a line sealing structure with any length.

[0087] The inflatable bag body 10 of the inflatable packaging bag further includes at least two bag body films 13, wherein the at least two bag body films 13 are arranged opposite to each other, and the heat sealing group 20 is formed on the bag body film 13 by heat sealing, thereby forming the bag body side wall 12 and the bag body bottom 11 of the inflatable bag body 10. As an example, in this preferred embodiment of the present application, the bag body film 13 of the inflatable bag body 10 includes a first bag body film 131 and a second bag body film 132, wherein the first bag body film 131 and the second bag body film 132 are stacked up and down, and an airbag structure that can be inflated is formed through the heat sealing action of the heat sealing group 20.

[0088] The heat sealing group 20 further includes a sealing heat sealing group 23, wherein the sealing heat sealing group 23 is formed on the side of the bag body film 13, so that the inflatable bag body 10 forms an airbag structure for sealing and storing air. The heat sealing group 20 further includes an air column heat sealing group 24, wherein the air column heat sealing group 24 is formed on the bag body film 13 in a horizontal or vertical manner, and the air column heat sealing group 24 includes a plurality of air column heat sealing lines 241, and any two adjacent air column heat sealing lines 241 are spaced to form an air column structure, that is, two adjacent air column structures are spaced by the air column heat sealing lines 241.

[0089] It is worth mentioning that in this preferred embodiment of the present application, the bending heat sealing group 22 includes a plurality of mutually spaced bending heat sealing units 224, wherein the bending heat sealing units 224 include but are not limited to heat sealing points or heat sealing lines; the connecting heat sealing group 21 includes a plurality of mutually spaced connecting heat sealing units 214, wherein the connecting heat sealing units 214 include but are not limited to heat sealing points or heat sealing lines. In this preferred embodiment of the present application, the first bending heat sealing group 221, the second bending heat sealing group 222 and the third bending heat sealing group 223 of the bending heat sealing group 22 are composed of a series of bending heat sealing units 224; the first connecting heat sealing group 211 and the second connecting heat sealing group 212 of the connecting heat sealing group 21 are composed of a series of connecting heat sealing units 214.

[0090] The bending heat sealing unit 224 of the bending heat sealing group 22 and the connecting heat sealing unit 214 of the connecting heat sealing group 21 are formed on the air column structure, and the lengths of the bending heat sealing unit 224 and the connecting heat sealing unit 214 are smaller than the width of the air column structure, that is, the air column structure is not blocked by the bending heat sealing unit 224 and the connecting heat sealing unit 214.

[0091] The inflatable packaging bag further includes an inflation valve 30, wherein the inflation valve 30 is arranged between the bag body film 13 of the inflatable bag body 10, and the inflation valve 30 has an inflation channel, and the inflation channel of the inflation valve 30 is connected to the air column structure, and air is inflated into the air column structure through the inflation valve 30.

[0092] The inflatable packaging bag further includes a load-bearing portion 40, wherein the load-bearing portion 40 is disposed in the accommodating cavity 100, and the load-bearing portion 40 is disposed on the inner side of the bag body side wall 12, and the load-bearing portion 40 forms a buffer cavity 400 with a buffering function on the inner side of the bag body side wall 12.

[0093] The packaged object can be placed in the buffer cavity 400 of the carrying portion 40, wherein the carrying portion 40 can better carry the packaged object, so that the center of gravity of the whole does not shift, and the package is more stable.

[0094] It is worth mentioning that the bearing part 40 is a film attached to the bag side wall 12, wherein one end of the bearing part 40 is attached to the inner side of the first bag side wall 121, and the other end of the bearing part 40 is attached to the inner side of the second bag side wall 122. When packaging the packaged object, the film adheres to the packaged object, and the packaged object is not easy to shift, and the center of gravity does not shift, so that the entire packaged inflatable packaging bag has more stability.

[0095] The bearing portion 40 further includes a fitting end 41 and a free end 42, wherein the fitting section 41 of the bearing portion 40 and the free end 42 are an integrated structure. The fitting end 41 fits the bag body side wall 12, and the free end 42 is separated from the bag body side wall 12. In the preferred implementation of the present application, the width of the free end 42 of the bearing portion 40 is ≥ (greater than or equal to) the difference between the width of the bag body bottom 11 and the diameter of an air column, thereby avoiding the width being too narrow and the width of the accommodating cavity being too small, which affects the packaging speed. The width of the free end 42 can be the same as the width of the bag body film 13, that is, the bearing portion 40 is heat-sealed on the air column in the accommodating cavity 100. In other words, the entire width of the film of the bearing portion 40 is as wide as the entire accommodating cavity, and the bearing portion 40 is attached to the accommodating cavity as a whole. It can be understood that the bearing portion 40 and the accommodating cavity can also be partially fitted. The shortest width of the bearing part 40 is the width of the bottom 11 of the bag body minus the distance of one air column diameter, and is heat-sealed on the air column lines on both sides. The widest width of the portion of the bearing part 40 that does not fit the air column of the packaging bag in the air-filled packaging bag accommodating cavity 100 is the entire width of the film of the bearing part 40. The shortest width is also the width of the bottom 11 of the bag body minus the distance of one air column diameter.

[0096] The heat sealing group 20 further includes a film heat sealing group 25, wherein the film heat sealing group 25 is disposed between the bearing portion 40 and the bag body film 13, and is used to form a portion that does not fit the air column of the packaging bag in the air-filled packaging bag accommodating cavity. It is worth mentioning that the lowest position of the film heat sealing group 25 is not lower than the position of the first bending heat sealing group 221.

[0097] In a specific example of the present application, the heat sealing group 20 is further provided with two end heat sealing lines 26, wherein the end heat sealing lines 26 are arranged at the ends of the inflatable bag body 10, so that the ends of the inflatable bag body 10 are heat sealed to form a receiving cavity with only one opening. The shortest heat sealing length of the end heat sealing lines 26 is that the entire load-bearing portion 40 is heat sealed to form a receiving cavity with only one side opening.

[0098] In another optional embodiment of the present application, the heat sealing group 20 is further provided with two end heat sealing lines 26, wherein the end heat sealing lines 26 are arranged at the ends of the inflatable bag body 10, wherein the end heat sealing lines 26 heat-seal the film layer portion of the bearing portion 40 with the bag body film 13.

[0099] like Figure 5 Shown is a schematic structural diagram of the bending heat sealing unit 224 of the bending heat sealing group 22 of the preferred embodiment of the present application, wherein the bending heat sealing unit 224 includes a transverse bending portion 2241 and a longitudinal bending portion 2242, wherein the transverse bending portion 2241 and the longitudinal bending portion 2242 are perpendicular, and the inflatable bag body 10 can be bent along the transverse bending portion 2241 of the bending heat sealing unit 224, and the longitudinal bending portion 2242 is parallel to the direction of the air column, so that the air column is protected during bending to prevent the air column from being damaged.

[0100] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. Inflatable packaging bag, characterized in that: The bag comprises an inflatable bag body and a heat-sealing group formed on the inflatable bag body, wherein the inflatable bag body is heat-sealed and connected by the heat-sealing group to form an inflatable airbag structure that can be inflated, the inflatable bag body comprises a bag body bottom and at least two bag body side walls extending integrally from the bag body bottom, wherein the at least two bag body side walls are arranged opposite to each other, and the side edges of the at least two bag body side walls are sealed by the heat-sealing group to form a accommodating cavity with an opening, wherein the heat-sealing group comprises a connecting heat-sealing group and a bending heat-sealing group, wherein the bending heat-sealing group is arranged at the bag body bottom of the inflatable bag body, and the bag body bottom can be bent at the position of the bending heat-sealing group, wherein the connecting heat-sealing group is arranged at the bag body bottom and the bag body side walls, and the connecting heat-sealing group connects the bag body bottom and partial structures of the bag body side walls, thereby forming a three-dimensional packaging structure of the inflatable bag body.

2. The inflatable packaging bag according to claim 1, wherein the bending heat sealing group includes at least a first bending heat sealing group, a second bending heat sealing group and a third bending heat sealing group, wherein the at least one first bending heat sealing group is formed between the second bending heat sealing group and the third bending heat sealing group, the second bending heat sealing group is formed between the first bag body side wall and the bag body bottom, and the third bending heat sealing group is formed between the second bag body side wall and the bag body bottom.

3. The inflatable packaging bag according to claim 2, wherein the bending heat sealing group includes a first bending heat sealing group, and the air column segment includes a first air column segment and a second air column segment, wherein the first air column segment and the second air column segment are separated by the first bending heat sealing group.

4. The inflatable packaging bag according to claim 2, wherein the bending heat sealing group includes two groups of first bending heat sealing groups, wherein the air column segment includes a first air column segment, a second air column segment and a third air column segment, wherein one group of the first bending heat sealing groups is spaced between the first air column segment and the third air column segment, and another group of the first bending heat sealing lines is spaced between the second air column segment and the third air column segment.

5. An inflatable packaging bag according to claim 3 or 4, wherein the bag body side wall further includes a first bag body side wall and a second bag body side wall, wherein the first bag body side wall and the second bag body side wall are symmetrically arranged relative to the bag body bottom, and the first bag body side wall extends integrally from one end of the bag body bottom, and the second bag body side wall extends integrally from the other end of the bag body bottom.

6. The inflatable packaging bag according to claim 5, wherein the connecting heat sealing group further includes a first connecting heat sealing group and a second connecting heat sealing group, wherein the first connecting heat sealing group is arranged on the first air column segment and the first bag body side wall, so that the first air column segment extends inwardly and obliquely upwardly from the bottom of the first bag body side wall; the second connecting heat sealing group is arranged on the second air column segment and the second bag body side wall, so that the second air column segment extends inwardly and obliquely upwardly from the bottom of the second bag body side wall, and then the bottom of the bag body is formed into a three-dimensional support structure by the connecting heat sealing group.

7. An inflatable packaging bag according to claim 6, wherein the bottom of the bag body further includes a first supporting foot and a second supporting foot, wherein the first supporting foot is formed at the connecting position of the first air column segment and the first bag body side wall; the second supporting foot is formed at the connecting position of the second air column segment and the second bag body side wall.

8. The inflatable packaging bag according to claim 7, wherein the second bending heat sealing group is arranged on the first supporting leg, the third bending heat sealing group is arranged on the second supporting leg at the bottom of the bag body, the first supporting leg is bent inward along the second bending heat sealing group, and the second supporting leg is bent inward along the third bending heat sealing group.

9. The inflatable packaging bag according to claim 8, wherein the first connecting heat sealing group of the connecting heat sealing group is formed on the first supporting leg, and the first connecting heat sealing group extends from the second bending heat sealing group to the direction of the first bending heat sealing group; the second connecting heat sealing group of the connecting heat sealing group is formed on the second supporting leg, and the second connecting heat sealing group extends from the third bending heat sealing group to the direction of the first bending heat sealing group.

10. The inflatable packaging bag according to claim 9, wherein the length of the first connecting heat sealing group is half the length of the first air column segment between the first bending heat sealing group and the second bending heat sealing group; the length of the second connecting heat sealing group is half the length of the second air column segment between the first bending heat sealing group and the third bending heat sealing group.

11. The inflatable packaging bag according to claim 10, wherein the inflatable bag body further comprises at least two bag body films, wherein the at least two bag body films are arranged relative to each other, and the heat sealing group is formed on the bag body film by heat sealing, thereby forming the bag body side wall and the bag body bottom of the inflatable bag body.

12. The inflatable packaging bag according to claim 11, wherein the heat sealing group further comprises an air column heat sealing group, wherein the air column heat sealing group is formed on the bag body film in a transverse or longitudinal manner, and the air column heat sealing group comprises a plurality of air column heat sealing lines, and any two adjacent air column heat sealing lines are spaced to form an air column structure.

13. The inflatable packaging bag according to claim 12, wherein the bending heat sealing group comprises a plurality of bending heat sealing units spaced apart from each other, wherein the bending heat sealing units are heat sealing points or heat sealing lines; the connecting heat sealing group comprises a plurality of connecting heat sealing units spaced apart from each other, wherein the connecting heat sealing units are heat sealing points or heat sealing lines.

14. The air-filled packaging bag according to claim 13, wherein the bending heat sealing unit of the bending heat sealing group and the connecting heat sealing unit of the connecting heat sealing group are formed on the air column structure, and the lengths of the bending heat sealing unit and the connecting heat sealing unit are smaller than the width of the air column structure.

15. The inflatable packaging bag according to claim 14, wherein the inflatable packaging bag further comprises a load-bearing portion, wherein the load-bearing portion is arranged on the inner side of the bag body side wall, and the load-bearing portion forms a buffer cavity with a buffering effect on the inner side of the bag body side wall.

16. The inflatable packaging bag according to claim 15, wherein the bearing portion further comprises a fitting end and a free end, wherein the fitting end is fitted with the side wall of the bag body, and the free end is separated from the side wall of the bag body. 17 . The inflatable packaging bag according to claim 16 , wherein the width of the free end of the bearing portion is greater than or equal to the difference between the width of the bottom of the bag body and a diameter of an air column. 18 . The air-filled packaging bag according to claim 17 , wherein the heat-sealing group further comprises a film heat-sealing group, wherein the film heat-sealing group is disposed between the carrying portion and the bag body film.

19. The inflatable packaging bag according to claim 18, wherein the heat sealing group is further provided with two end heat sealing lines, wherein the end heat sealing lines are arranged at the ends of the inflatable bag body.

20. The inflatable packaging bag according to any one of claims 11 to 19, wherein the inflatable packaging bag further comprises an inflation valve, wherein the inflation valve is arranged between the bag body membrane of the inflatable bag body, the inflation valve has an inflation channel, and the inflation channel of the inflation valve is connected to the air column structure.

Images