An inflatable air column cushion

CN224645595UActive Publication Date: 2026-08-18ZHONGSHAN YUXUAN NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202521923274.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2026-08-18
Estimated Expiration
2035-09-05

AI Technical Summary

Technical Problem

然而,该结构在实际使用中存在明显缺陷:当气柱袋需要包裹物品边角时,单点弯折会导致两气柱在弯折后相互抵接,产生结构干涉,这种干涉不仅使气柱袋难以紧密贴合物品边角,降低缓冲保护效果,还会在反复弯折过程中导致折弯处应力集中,加速膜材疲劳破裂,影响产品使用寿命

Benefits of technology

[0015] In this invention, at least two bending points are provided between the upper and lower air columns. This allows the upper and lower air column units to bend along these two bending points, forming a relative clamping space to adapt to the contour of the packaged item. Furthermore, the connection between the two bending points forms a buffer transition section. This buffer transition section deforms in an arc or stepped shape during bending, creating a larger bending clearance space. Thus, the upper and lower air column units are not bent at right angles; they are staggered to avoid mutual interference. After bending, the upper and lower air column units will not abut against each other, preventing a rigid obstruction at the bending point and ensuring a tight fit to the edges and contours of the packaged item, thus reducing the cushioning effect. This buffer is easy to bend and can fit tightly to the edges and contours of the packaged item during use, providing excellent cushioning and impact protection.

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Abstract

The utility model discloses a kind of inflatable air column buffer bodies, it is long sheet-shaped buffer body by a piece of plastic film material with several air columns;Multiple air column units are provided from top to bottom on the surface of buffer body, each air column unit has multiple air columns, and the two air columns of upper and lower adjacent arrangement form column one-to-one correspondence.In the utility model, at least two bending points are provided between the two air columns, so that the upper air column unit and the lower air column unit can be bent along the two bending points, the connecting part forms a buffer transition section, forms larger bending avoidance space, to adapt to the profile of the packaged object, so that the upper air column unit and the lower air column unit are staggered to avoid, avoid mutual interference, the buffer body is bent conveniently, and when using, it can be closely attached to the edge corner profile of the packaged object, and the buffer anti-collision effect is good.
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Description

[Technical Field]

[0001] This utility model relates to an inflatable air column buffer. [Background Technology]

[0002] Inflatable air column bags, as a common packaging and protective material, are widely used in logistics and transportation to protect fragile items, precision instruments, and other products. Traditional air column bags are typically made by heat-sealing multiple independent air columns from a plastic film. The protective function is provided by the structure of the inflated air columns. By making the air column bags into the style of packaging bags, the items are packaged inside.

[0003] Because air column bags provide cushioning and shock absorption, we tried bending them and wrapping them around the corners of items. This would protect the items, act as corner protectors, and even serve as foot pads. However, directly bending the air column bag makes it very difficult to bend the air column itself. The common practice is to create a single-point bending line between the air columns, allowing the bag to bend at a certain angle to adapt to the shape of the packaged item. However, this structure has significant drawbacks in practical use: when the air column bag needs to wrap around the corners of an item, the single-point bending causes the two air columns to abut against each other after bending, creating structural interference. This interference not only makes it difficult for the air column bag to fit tightly against the corners of the item, reducing the cushioning effect, but also leads to stress concentration at the bends during repeated bending, accelerating membrane fatigue and rupture, and affecting the product's lifespan.

[0004] Therefore, there is an urgent need for a new type of inflatable air column buffer that can avoid the problem of air column units obstructing each other caused by right-angle bending, improve the wrapping of the corners of the items, and enhance the fatigue resistance of the bent parts to meet the higher requirements of packaging protection.

[0005] To address the above problems, this application proposes a new technical solution. [Utility Model Content]

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an inflatable air column buffer, and the technical solution adopted is as follows:

[0007] An inflatable air column buffer is a long sheet-shaped buffer made of a plastic film material with several air columns. Multiple rows of air column units are arranged from top to bottom on the surface of the buffer. Each row of air column units has multiple air columns, and two adjacent air columns are arranged in a row corresponding to each other. A bendable connecting part is formed between two adjacent air columns. The connecting part has at least two bending points arranged vertically at intervals. The long sheet-shaped buffer can be bent along the connecting part through the bending points.

[0008] According to an embodiment of the present invention, an inflatable air column buffer body is provided, wherein the bending point is a molding point.

[0009] According to an embodiment of the present invention, an inflatable air column buffer body is provided in which the molding point does not block the connection between adjacent air columns, and among the multiple air columns arranged in a row, two adjacent air columns are connected.

[0010] According to an embodiment of the present invention, an inflatable air column buffer body is provided, wherein the molding point is located in the middle, on one side or on both sides of two air columns and has an air passage therein.

[0011] According to an embodiment of the present invention, an inflatable air column buffer body is provided with a plurality of sealing molding lines along the length direction of the buffer body on the surface of the buffer body, and two adjacent sealing molding lines form a separate air cavity. On each separate air cavity, a plurality of sets of molding and bending isolation strips are provided at intervals from top to bottom to form a plurality of air columns arranged in rows at intervals.

[0012] According to an embodiment of the present invention, an inflatable air column buffer body is provided, wherein each of the multiple sets of molded and bent isolation strips consists of multiple molding points set between the upper and lower air columns.

[0013] According to an embodiment of the present invention, an inflatable air column buffer body has a sealing embossed edge on the outer edge of the buffer body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, at least two bending points are provided between the upper and lower air columns. This allows the upper and lower air column units to bend along these two bending points, forming a relative clamping space to adapt to the contour of the packaged item. Furthermore, the connection between the two bending points forms a buffer transition section. This buffer transition section deforms in an arc or stepped shape during bending, creating a larger bending clearance space. Thus, the upper and lower air column units are not bent at right angles; they are staggered to avoid mutual interference. After bending, the upper and lower air column units will not abut against each other, preventing a rigid obstruction at the bending point and ensuring a tight fit to the edges and contours of the packaged item, thus reducing the cushioning effect. This buffer is easy to bend and can fit tightly to the edges and contours of the packaged item during use, providing excellent cushioning and impact protection. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a perspective view of some embodiments of the present utility model. Figure 1(In a flat state);

[0018] Figure 2 This is a schematic diagram of the structure of some embodiments of the present invention (in an uninflated state);

[0019] Figure 3 This is a perspective view of some embodiments of the present utility model. Figure 2 (Bent state).

[0020] Explanation of key component symbols:

[0021] 10. Sealed embossed edge; 20. Air column; 30. Molding point; 40. Airbag; 50. Sealed embossed line. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0024] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0026] This utility model provides an inflatable air column buffer, such as Figure 1 ,2 As shown in Figure 3, it is a long sheet-shaped buffer body made of a plastic film material with several air columns 20; a sealing and imprinting edge 10 is provided on the outer edge of the buffer body; multiple air column units are provided on the surface of the buffer body from top to bottom, each air column unit has multiple air columns 20, and two adjacent air columns 20 are arranged in a row corresponding to each other; a bendable connecting part is formed between two adjacent air columns 20, and at least two bending points are provided at intervals in the vertical direction of the connecting part. Through the bending points, the long sheet-shaped buffer body can be bent along the connecting part.

[0027] In this invention, at least two bending points are provided between the upper and lower air columns 20. This allows the upper and lower air column units to bend along these two bending points, forming a relative clamping space to adapt to the contour of the packaged item. Furthermore, the connection between the two bending points forms a buffer transition section. This buffer transition section deforms in an arc or stepped shape during bending, creating a larger bending clearance space. Thus, the upper and lower air column units are not bent at right angles; they are staggered to avoid mutual interference. After bending, the upper and lower air column units will not abut against each other, preventing a rigid obstruction at the bending point and ensuring a tight fit to the edges and corners of the packaged item, thus reducing the cushioning effect. This buffer body is easy to bend and can fit tightly to the edges and corners of the packaged item during use, providing excellent cushioning and impact protection. It also enhances the fatigue resistance of the bending area to meet higher packaging protection requirements.

[0028] In one embodiment of this utility model, such as Figure 2 As shown, the bending point is molding point 30, as... Figure 1 , 3 As shown, after bending, an air bladder 40 is formed between the two molding points 30, providing cushioning protection at the connection.

[0029] In one embodiment of this utility model, such as Figure 1 , 2 As shown in Figure 3, the molding point 30 does not block the connection between adjacent air columns 20. Among the multiple air columns 20 arranged in a row, two adjacent air columns 20 are connected. The molding point 30 is located in the middle of two air columns 20 and has an air passage inside it.

[0030] In one embodiment of this utility model, such as Figure 1 , 2As shown in Figure 3, several sealing molding lines 50 are provided on the surface of the buffer body along the length direction of the buffer body. Two adjacent sealing molding lines 50 form a separate air cavity. On each separate air cavity, multiple sets of molding bending isolation strips are arranged from top to bottom to form multiple air columns 20 arranged in rows. Each set of molding bending isolation strips consists of multiple molding points 30 arranged between two upper and lower air columns 20. The molding points 30 are located in the middle of the two air columns 20 and have air passages in them, so that the air passages between the upper and lower air columns 20 are connected to form a separate air cavity.

[0031] In one embodiment of this utility model, the buffer is an application of an air column bag. It should be understood that how to inflate the air column bag and distribute it to each air column 20 is within the scope of existing technology and will not be elaborated here.

[0032] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. An inflatable air column buffer, characterized in that, It is a long sheet-shaped buffer body made of a plastic film material with several air columns (20); multiple air column units are provided on the surface of the buffer body from top to bottom, each air column unit has multiple air columns (20), and two air columns (20) arranged vertically are arranged in a row corresponding to each other; a bendable connecting part is formed between two air columns (20) arranged vertically, and at least two bending points are arranged at intervals in the vertical direction of the connecting part. Through the bending points, the long sheet-shaped buffer body can be bent along the connecting part.

2. The inflatable air column buffer body according to claim 1, characterized in that, The bending point is the molding point (30).

3. The inflatable air column buffer body according to claim 2, characterized in that, The molding point (30) does not block the connection between adjacent air columns (20) above and below. Among the multiple air columns (20) arranged in a row, two adjacent air columns (20) above and below are connected.

4. The inflatable air column buffer body according to claim 3, characterized in that, The molding point (30) is located in the middle, on one side or on both sides of the two air columns (20) and has an air passage therein.

5. An inflatable air column buffer body according to claim 3, characterized in that, Several sealing molding lines (50) are provided on the surface of the buffer body along the length direction of the buffer body. Two adjacent sealing molding lines (50) form a separate air cavity. Multiple sets of molding and bending isolation strips are provided at intervals from top to bottom on each separate air cavity to form multiple air columns (20) arranged in rows at intervals.

6. An inflatable air column buffer body according to claim 5, characterized in that, Each of the multiple sets of molded and bent isolation strips consists of multiple molding points (30) set between the upper and lower air columns (20).

7. An inflatable air column buffer body according to claim 1, characterized in that, A sealing embossed edge (10) is provided on the outer edge of the buffer body.