Inflatable bag body

Abstract

The invention provides an inflating bag body which comprises two outer films, wherein the two outer films are bound in a heat sealing and bonding mode to form an air chamber and a main check valve, each outer film comprises a first film piece and a second film piece, the main check valve is positioned in an air chamber arranged between the two outer films, the upper end of the main check valve is higher than the upper ends of the two outer films, and the main check valve comprises a first air channel which is used for communicating the air chamber with the outside. When outside air enters the air chamber along the first air channel and leads the air chamber to expand, the air pressure in the air chamber can oppress the main check valve to seal the first air channel. The strength of the outer films is greatly strengthened by the structure; when one of the first film piece and the second film piece is damaged, air in the air chamber can not leak outside and can still constantly and effectively supply buffering and protecting function to an article; the structure of the main check valve can ensure that when high-pressure air is inflated into the air chamber, the main check valve can not be damaged because of the high pressure, and the inflating bag body not only can be quickly inflated, but also has better air sealing effect.

Description

technical field [0001] The invention relates to an inflatable bag body, in particular to an inflatable bag body with reinforced outer membrane structure. Background technique [0002] Generally, when large-scale items are transported in containers, buffer air bags are placed between the items to cushion and protect the items, reduce scratches or damage caused by collisions during transport, and improve the yield rate during transport. [0003] However, in order to provide a better cushioning protection effect, this kind of cushioning airbag is quite bulky, so it takes a lot of time to inflate, which is quite time-consuming and laborious. If the cushioning airbag is filled with high-pressure gas, it is easy to cause the cushioning airbag to collapse The check valve is damaged and cannot hold the air (in order to make the second diaphragm of the check valve produce air-holding action after inflation, the second diaphragm should be made very thin), or the outer membrane of the ...

AI Technical Summary

Problems solved by technology

[0003] However, in order to provide a better cushioning protection effect, this kind of cushioning airbag is quite bulky, so it takes a lot of time to inflate, which is quite time-consuming and laborious. If the cushioning airbag is filled with high-pressure gas, it is easy to cause the cushioning airbag to collapse The check valve is damaged and cannot hold the air (in order to make the second diaphragm of the check valve produce air-holding action after inflation, the second diaphragm should be made very thin), or the outer membrane of the buffer air bag is damaged and deflated

In addition, this kind of buffer air bag is often damaged by scratches on the sharp corners or sharp corners of the items in the container, causing the gas in the buffer air bag to leak out and lose the function of buffer protection, and it must be discovered when the items are removed from the container. At this time, the item has been scratched or damaged due to the lack of a buffered intermediate medium during the transportation process.

[0004] It can be seen from this that how to improve the structure of the buffer air bag to solve the problem that the buffer air bag is easily damaged by the sharp corners and sharp corners of the items in the container, causing gas leakage and losing the function of buffer protection, and then by improving the buffer air bag and The structure of its check valve, to increase the inflation speed and reduce the time required for the inflation of the buffer air bag, is a problem that those skilled in the art are eager to solve

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