This application claims the benefit of priority to Chinese Patent Application No. 201910304410.8 filed on April, 16, 2019, the disclosure of which is incorporated in its entirety by reference herein.

The present disclosure relates to the field of inflatable cushion bags, and in particular to an inflatable bag with a protective base.

With the development of transportation and the prosperity of logistics industry, a wide range of objects can be transported. Today's society requires not only rapid delivery of items, but also protection capability of the packaging materials thereof. During the transportation of items, it is important to be able to prevent shock and fall as well as preventing the items from being directly damaged by external forces.

Therefore, for large or thin objects, special attention should be paid to cushioning and shockproof capabilities of their packaging materials, especially for the edges and corners of the items where the external forces directly hit. If these capabilities are not good enough, the transportation objects will be significantly damaged.

In view of the above, the present disclosure provides an inflatable bag with a protective base, which is formed by stacking two outer films and two inner films located inside the outer films and by means of heat sealing and inflating. The inflatable bag includes two opposite side walls and a bottom wall.

Each of the opposite side walls includes a plurality of side wall air columns; the bottom wall is located between the side walls and connected to bottom portions therof, the bottom wall includes a plurality of bottom air columns, a first bottom air column section, a protective air column section and a second bottom air column section are delimited in sequence in each of the bottom air columns, the first bottom air column sections are connected to the second bottom air column sections by forming first heat sealing nodes to bond the outer films and the inner films together, and at least one second heat sealing node is formed on each of the protective air columns to bond the outer films and the inner films together, so that the protective air column sections are folded to form a protective base.

In one embodiment of the inflatable bag with a protective base as described above, each of the protective air column sections has two second heat sealing nodes and sequentially delimits a first support section, a connecting section, and a second support section to enclose a cushion space which has an inverted triangular cross-section.

In one embodiment of the inflatable bag with a protective base as described above, each of the protective air column sections has three second heat sealing nodes and sequentially delimits four support sections to enclose a cushion space which has a square cross-section.

In one embodiment of the inflatable bag with a protective base as described above, the inflatable bag further includes a connecting member located above the protective base to connect the side walls.

In one embodiment of the inflatable bag with a protective base as described above, the outer films and the inner films are further bonded together by means of heat sealing to connect the side walls.

In one embodiment of the inflatable bag with a protective base as described above, the inflatable bag further includes a cushion film located above the protective base, opposite ends of the cushion film are connected to the side walls, respectively.

In one embodiment of the inflatable bag with a protective base as described above, the inflatable bag further includes a spacing air bag arranged in a space formed by the side walls with the bottom wall, located above the protective base and opposite ends thereof are connected to the side walls, respectively; the spacing air bag includes a plurality of spacing air columns and a flat portion, at least one thermal node is formed on each of the spacing air columns by which the flat portion is folded to form a spacing space.

In one embodiment of the inflatable bag with a protective base as described above, the spacing air columns are located at opposite sides of the flat portion.

In one embodiment of the inflatable bag with a protective base as described above, the spacing air columns are folded, and after which at least two of the opposing spacing air columns are connected with each other.

In one embodiment of the inflatable bag with a protective base as described above, the inflatable bag further includes a spacing air bag arranged inside a space formed by the side walls with the bottom wall, located above the protective base and opposite ends thereof are connected to the side walls, respectively; the spacing air bag includes a plurality of spacing air columns, which are folded to form a spacing space by forming a plurality of thermal nodes thereon.

The above solutions of the present disclosure have the following advantageous effects.

If an object packaged with the inflatable bag with a protective base according to one or more embodiments of the present disclosure falls accidentally in transport, the inflatable bag can provide at least two kinds of cushioning and shockproof effects on the edges and corners of the object, i.e., the cushioning and shockproof effects provided by the protective base and the side walls. Furthermore, in one embodiment, the inflatable bag with a protective base includes a cushion film or a spacing air bag, which abuts the transportation object to provide another kind of cushioning and shockproof effect. That is to say, at least a three-stage cushioning and shockproof effect is provided in this embodiment.

• Fig. 1 is a schematic view showing an appearance of a first embodiment of an inflatable bag with a protective base according to the present disclosure.
• Fig. 2 is a schematic view showing an appearance of a second embodiment of an inflatable bag with a protective base according to the present disclosure.
• Fig. 3 is a schematic view showing an appearance of a third embodiment of an inflatable bag with a protective base according to the present disclosure.

1

inflatable bag with a protective base;

11

side wall;

111

side wall air column;

12

bottom wall;

121

bottom air column;

1211

first bottom air column section;

1212

protective air column;

1212a

first support section;

1212b

connecting section;

1212c

second support section;

1213

second bottom air column section;

122

first heat sealing node;

123

second heat sealing node;

13

protective base;

14

cushion film;

15

spacing air bag;

151

spacing air column;

1511

thermal node;

152

flat portion;

S1

cushion space;

S2

spacing space

The embodiments of the present disclosure will be described hereinafter in further detail with reference to the accompanying drawings and references signs thereof, so that it can be practiced by those skilled in the art upon reading this specification.

Referring now to Figs. 1 to 3, which are schematic views showing the appearances of first, second, and third embodiments of an inflatable bag with a protective base 1 according to the present disclosure, respectively.

The inflatable bag with a protective base 1 is formed by stacking two outer films and two inner films located inside the outer films and by means of heat sealing and inflating, as shown in Fig. 1, the inflatable bag includes two opposite side walls 11 and a bottom wall 12.

Each of the opposite side walls 11 includes a plurality of side wall air columns 111. The bottom wall 12 is located between the side walls 11 and connected to bottom portions therof, the bottom wall 12 includes a plurality of bottom air columns 121, a first bottom air column section 1211, a protective air column section 1212 and a second bottom air column section 1213 are delimited in sequence in each of the bottom air columns 121, the first bottom air column section 1211 is connected to the second bottom air column section 1212 by forming a first heat sealing node 122 to bond the outer films and the inner films together, and at least one second heat sealing node 123 is formed on each of the protective air columns 1212 to bond the outer films and the inner films together, so that the protective air column sections 1212 are folded to form a protective base 13. In comparison with the prior art in which a protective base is formed by bonding two inner films together which has low strength and production of which is time-consuming and complex, , the inflatable bag with a protective base 1 having the mentioned configuration has advantages of high strength, good supporting effect and easy to produce.

In the embodiments shown in Figs. 1 to 3, when each of the protective air column sections 1212 has two second heat sealing nodes 123, they sequentially delimits a first support section 1212a, a connecting section 1212b, and a second support section 1212c to enclose a cushion space S1 which has an inverted triangular cross-section. The connecting section 1212b can abut and hold a transportation object to provide cushioning and shockproof effects by the protective base 13. However, the present disclosure is not limited to these embodiments, and in some embodiments, each of the protective air column sections 1212 has three second heat sealing nodes 123 and sequentially delimits four support sections to enclose a cushion space S1 which has a square cross-section in this case, which can also provide cushioning and shockproof effects by the protective base 13.

Referring again to Fig. 1, in the first embodiment, the inflatable bag with a protective base 1 further includes a connecting member located above the protective base 13 to connect the side walls 11. In this way, the inflatable bag 1 can cover and fit around edges and corners of a transportation object so as to protect these areas. The transportation object in this case may be a large-area panel, for example, and the connecting member may be a glue or adhesive tape. In some embodiments, the outer films and the inner films are bonded by heat sealing means to connect the side walls 11.

In the second embodiment shown in Fig. 2, the inflatable bag with a protective base 1 further includes a cushion film 14 located above the protective base 13, opposite ends of the cushion film 14 are connected to the side walls 11, respectively, and the cushion film 14 can cover and fit around a transportation object to provide a first stage protection effect. In some embodiments, opposite portions on one side of the cushion film 14 are bonded to each other such that the inflatable bag with a protective base 1 can also cover and fit around edges and corners of the transportation objects.

In the third embodiment shown in Fig. 3, the inflatable bag with a protective base 1 further includes a spacing air bag 15 arranged in a space formed by the side walls 11 with the bottom wall 12, located above the protective base 13 and opposite ends thereof are connected to the side walls 11, respectively. The spacing air bag 15 includes a plurality of spacing air columns 151 and a flat portion 152, and at least one thermal node 1511is formed on each of the spacing air columns 151 by which the flat portion 152 is folded to form a spacing space S2. In the embodiment shown in Fig. 3, the spacing air columns 151 are located at opposite sides of the flat portion 152.

That is to say, the flat portion 152 can cover and fit around a transportation object, and the spacing air columns 151 can limit the object inside the spacing space S2 because they are protruded further than the flat portion 152. In some embodiments, at least two of the opposing spacing air columns 151 are connected with each other, and in this way, the transportation object will be limited within the spacing space S2 to provide further protection to the object.

In addition, in some embodiments, the spacing air bag 15 is formed by a plurality of spacing air columns 151, which are folded to form the spacing space S2 by forming a plurality of thermal nodes 1511 thereon (not depicted).

If an object packaged with the inflatable bag with a protective base according to one or more embodiments of the present disclosure falls accidentally in transport, the inflatable bag can provide at least two kinds of cushioning and shockproof effects on the edges and corners of the object, i.e., the cushioning and shockproof effects provided by the protective base and the side walls. Furthermore, in one embodiment, the inflatable bag with a protective base includes a cushion film or a spacing air bag, which abuts the transportation object to provide another kind of cushioning and shockproof effect. That is to say, at least a three-stage cushioning and shockproof effect is provided in this embodiment.

Furthermore, in comparison with the prior art in which a protective base is formed by bonding two inner films together, which has low strength and production of which is time-consuming and complex, the inflatable bag with a protective base according to an embodiment of the present disclosure has advantages of high strength, good supporting effect and easy to produce, so as to solve the above-mentioned problems.