Liquid container, stop valve thereof and manufacturing method

Abstract

The invention discloses a liquid container, a stop valve thereof and a manufacturing method. The liquid container comprises two layers of liquid storage films which are overlapped with each other so that at least one liquid storage unit can be formed. Each liquid storage unit is provided with a liquid storage chamber. The stop valve comprises two layers of valve films which are overlapped with each other. Each layer of valve film comprises an outer extending section and an inner extending section. The outer extending section and the inner extending section of each layer of valve film are integrally formed. The two layers of inner extending sections of the two layers of valve films and the liquid storage films are overlapped and connected with each other between the two layers of inner extending sections to form a liquid filling channel. In this way, the liquid storage chambers of the liquid storage units are filled with liquid by means of the liquid filling channel. After the liquid storage chambers are filled with the liquid, the liquid pressure of the liquid storage chambers act on the two layers of valve films so as to close the liquid filling channel, and therefore the liquid leakage is prevented.

Description

technical field [0001] The invention relates to a fluid storage device, in particular to a fluid container with a shut-off function and a shut-off valve thereof. Background technique [0002] In the modern logistics industry, the most widely used is the packing box (packing box). However, the packaging methods of this traditional packaging box do not provide anti-collision, anti-collision and anti-drop functions. That is to say, during transportation or storage, the packaging box or crate will be thrown around, which can easily cause its deformation, which may cause damage or deformation of the packaged items. Therefore, for some items with high packaging requirements, such as electronic digital products, plastic ceramics, biochemical products, food and medicine, etc., it is necessary to provide cushioning for the packaged items to prevent the packaged items from being damaged during transportation and storage. [0003] Existing solutions, such as traditional paper packagi...

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Problems solved by technology

[0009] At the same time, in this scheme, although the heat seal 1E is set to improve the inflation performance, the two sides of the area from the main air channel 1D to the heat seal line 1F are still a structure of an outer film plus an inner film, but the two sides When the layers of film are attached together, it will cause local adhesion due to electrostatic adsorption, so that the force will not be uniform and fully expanded when inflated.

Moreover, the residual air between the adventitia and the intima may also exert a pressure effect on the outer and intima, resulting in uneven local stress on the intima, thereby blocking the entrance of some inflatable passages 2C

Moreover, air can also enter between the adjacent outer film and the inner film through between the adjacent heat-sealing points 1E, so that the air pressure change caused by the gas entering and leaving between the adjacent outer film and the inner film has a negative effect on the main gas. The air pressure of channel 1D may be affected, resulting in an air pressure difference between the internal inflatable chamber 1C and the main air channel 1D, which will eventually lead to the leakage of air at the inflatable pressure 1C

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