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Converse air-stopping valve and air sealing device equipped with the converse air-stopping valve

A technology of air sealing device and air stop valve, which is applied in the direction of valve device, container to prevent mechanical damage, control valve, etc., and can solve problems such as reverse leakage, incomplete attachment, loss of buffer protection, etc.

Active Publication Date: 2010-06-23
KUNSHAN AIRBAG PACKING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] like image 3 As shown, the gas packaging bag A10 is inflated to form a cylinder, the upper air valve film A141 and the lower air valve film A142 cannot be completely attached to the outer film A161, and wrinkles are formed on the upper air valve film A141 and the lower air valve film A142 A148, making the gas in the air chamber A13 pass through the folds A148 to cause a reverse leakage phenomenon, causing the gas in the gas packaging bag A10 to leak out and lose the function of buffer protection

Method used

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  • Converse air-stopping valve and air sealing device equipped with the converse air-stopping valve
  • Converse air-stopping valve and air sealing device equipped with the converse air-stopping valve
  • Converse air-stopping valve and air sealing device equipped with the converse air-stopping valve

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0046] Figure 4A , Figure 4B , Figure 4C , Figure 5A and Figure 5B Shown is a first embodiment of the air seal with reverse air check valve of the present invention. The air sealing device 1 of the present invention comprises: two outer films 2a, 2b stacked up and down, and a plurality of airtight air chambers formed in the two outer films. The reverse air stop valve is arranged in the air chamber.

[0047] The top peripheral edges and bottom peripheral edges of the two outer films 2a, 2b are respectively heat-sealed and bonded by heat-sealing lines 3a, 3d, and the side-end peripheral edges are respectively heat-sealed and bonded by heat-sealing lines 3c, 3h, wherein the heat-sealing lines 3a, 3d and 3c completely heat-seal the peripheral edge of the second outer film, but the heat-sealing line 3h does not completely heat-seal the side end periphery of the second outer film. A heat-sealing line 3b, the top end of the heat-sealing line 3h intersects with the first he...

no. 2 example

[0067] Figure 6Shown is a second embodiment of the invention. In this embodiment, two inner films 1a and 1b are bonded by means of heat sealing to form a plurality of annular heat-sealing lines 3f, and between the two inner films at the intersection of the heat-resistant material 1c and each annular heat-sealing line 3f are respectively A plurality of second air inlets 2f are formed. In addition, a partition line 3g is arranged between a plurality of annular heat-sealing lines 3f, so that a plurality of annular heat-sealing lines 3f can pass through the partition line 3g to partition the air column 11 in sections, so that the air column 11 on each air column Ring heat seal lines are not the same.

[0068] Moreover, the heat-resistant material 1c coated in the two inner membranes 1a and 1b starts from the gas-inflating area and extends to the gas-storage area, and the heat-resistant material 1c runs through the first heat-sealing line 3b and the annular heat-sealing line 3f....

no. 3 example

[0070] Figure 7 It is the third embodiment of the present invention. In this embodiment, multiple strips of heat-resistant material 1c are coated at different positions between the two inner films 1a and 1b. Because the heat-resistant material 1c runs through the first heat-sealing line 3b and the annular heat-sealing line 3f, multiple strips are formed. There are two first air inlets 2e, and a second air inlet 2f corresponding to each first air inlet 2e.

[0071] It is also possible to adopt the method of section coating, to coat heat-resistant material 1c at different positions of the first heat-sealing line 3b to form a plurality of first air inlets 2e, and then to coat different positions of the annular heat-sealing line 3f Cover the heat-resistant material 1c to form a plurality of second air inlets 2f, wherein each first air inlet 2e corresponds to each second air inlet 2f, and the first air inlet 2e and the second air inlet 2f can also be separated. correspond to eac...

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PUM

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Abstract

The invention provides an air sealing device with a reverse checking valve, comprising two external films and at least a closed air chamber which is formed inside the external film; the air chamber is internally provided with the reverse checking valve; two external films are provided with a first sealing line respectively; the air chamber is divided into an inflation area and an air storage area; the air storage area is inflated completely and subsequently forms an air column; the reverse checking valve comprises two internal films, at least a heat resistance material which is coated betweenthe two internal films, at least a ring-shaped heat sealing line used for thermally sealing the two internal films, at least a first air inlet and at least a second air inlet; the ring-shaped thermalsealing line is arranged inside the air storage area; the heat resistance material passes through the first thermal sealing line and the ring-shaped thermal sealing line; furthermore, at least a first air inlet is formed at the joining with the first thermal sealing line, and at least a second air inlet is formed at the joining with the ring-shaped thermal sealing line; two internal films and theheat resistance material extend to the air storage area from the inflation area; the air column comprises a curved surface area and a column surface area; when the air inside the air column presses the two internal films, a plurality of goffers are formed inside two internal films of the curved surface area; two internal films of the column surface area are smoothly attached inside an external film.

Description

technical field [0001] The invention relates to a reverse air stop valve and an air sealing device with the reverse air stop valve, in particular to a reverse air stop valve capable of strengthening the airtight effect and an air sealing device with the reverse air stop valve. Background technique [0002] The traditional way of cushioning packaged items is to wrap the outer periphery of the item with bubble paper to achieve shock absorption and cushioning effect. However, the shock absorption capacity of bubble paper is limited and cannot withstand large vibrations or impacts. Therefore, a resin film is developed. Gas packaging bags made of materials. [0003] like Figure 1A and Figure 1B As shown, the gas packaging bag is a sealed body composed of two outer films A161 and A162 made of soft resin and can be filled with air inside, and an air valve A14 is installed between the two outer films A161 and A162, and the air valve A14 After stacking the opposing upper air valv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D81/03B65D85/30F16K15/20
Inventor 廖建华廖耀鑫廖耀全
Owner KUNSHAN AIRBAG PACKING CORP