Waterproof packaging bag with exhaust structure

Abstract

The utility model discloses a waterproof packaging bag with an exhaust structure, which relates to the technical field of waterproof packaging bags and comprises a waterproof outer bag, a sealing inner bag is arranged in the waterproof outer bag, and primary and secondary sealing strips are fixedly connected to the upper positions of the inner walls of the front end and the rear end of the sealing inner bag. First air conveying hoses are arranged at the positions, close to the front end and the rear end of the sealed inner bag, of the rear portion of the interior of the waterproof outer bag, and second air conveying hoses are connected to the top ends of the first air conveying hoses, so that exhaust of the sealed inner bag after sealing is facilitated through the waterproof outer bag, a second exhaust valve, a sealing plug and the sealed inner bag, and the damp probability is reduced; and most air in the waterproof outer bag can be conveniently discharged during transportation, and the problems that after a traditional waterproof packaging bag is sealed in use, air in the packaging bag is difficult to discharge, the occupied space is large during transportation, and the packaging bag is internally provided with more air and is prone to being extruded, so that a sealing strip is opened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof packaging bags, in particular to a waterproof packaging bag with an exhaust structure. Background Art

[0002] Waterproof packaging bags refer to bags made of waterproof materials as barrier layers and waterproof adhesives or linings, seals, etc., to prevent rain, fresh water, seawater, etc. from penetrating into the packaging during transportation, loading and unloading, and storage, which may affect the quality of the materials inside. When storing food or objects that are susceptible to moisture, waterproof packaging bags are usually used for sealed packaging to prevent moisture from entering, so as to facilitate subsequent transportation and storage.

[0003] The existing waterproof packaging bags have a relatively simple sealing structure when in use, and are usually sealed using a mother-and-child sealing strip in combination with a hot-melt seal. After sealing, it is difficult to expel the air inside the packaging bag, which occupies a large space during transportation. In addition, there is a lot of air inside the packaging bag, which is easily squeezed and causes the sealing strip to open. Utility Model Content

[0004] The main purpose of the utility model is to provide a waterproof packaging bag with an exhaust structure, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A waterproof packaging bag with an exhaust structure, comprising a waterproof outer bag, a sealed inner bag is arranged inside the waterproof outer bag, and a mother-and-child sealing strip is fixedly connected to the upper position of the inner wall of the front and rear ends of the sealed inner bag;

[0007] A gas hose 1 is provided inside the waterproof outer bag at the rear and near the front and rear ends of the sealed inner bag, the top of the gas hose 1 is connected to a gas hose 2, and the two gas hoses 2 are located above the parent-child sealing strip, a fixing block is fixedly installed at the upper front end of the waterproof outer bag, an exhaust valve 1 is fixedly installed at the front end of the fixing block, a sealing plug 1 is provided at the air outlet of the exhaust valve 1, and the air inlet of the exhaust valve 1 is connected to an end of the gas hose 2 away from the gas hose 1.

[0008] As a further solution of the utility model, a second exhaust valve is provided at the lower side of the sealed inner bag, and a second sealing plug matching the second exhaust valve is provided on one side passing through the waterproof outer bag, and the second sealing plug is inserted into the second exhaust valve.

[0009] As a further solution of the utility model, the waterproof outer bag and the sealed inner bag are both softly configured, and the second exhaust valve is connected to the second sealing plug through sealant and the sealed inner bag and the waterproof outer bag respectively.

[0010] As a further solution of the utility model, the upper portion of the waterproof outer bag is provided with a heat-melt edge seal, and easy-tear lines are provided at the front and rear ends of the upper portion.

[0011] As a further solution of the utility model, a plurality of equally spaced air inlet holes are provided at the lower portion of the outer ring of the gas hose 1, and the gas hose 1 and the gas hose 2 are both connected to the inner wall of the waterproof outer bag by adhesive.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides an exhaust valve 2 and a sealing plug 2 to cooperate with the sealed inner bag. After the sealed inner bag is sealed by the mother-and-child sealing strip, the sealing plug 2 is pulled out of the exhaust valve 2, so that the sealed inner bag can be exhausted after sealing. In addition, during the exhaust process of the sealed inner bag, since the sealed inner bag is arranged inside the waterproof outer bag, the food or objects stored inside the bag do not directly contact the outside during the exhaust process, thereby reducing the probability of moisture.

[0014] By arranging the gas hose 1, the gas hose 2, the fixing block, the exhaust valve 1 and the waterproof outer bag, most of the air in the waterproof outer bag can be discharged during transportation, thereby reducing the space occupied by the bag. In addition, by arranging the gas hose 2 and the mother-and-child sealing strip, the gas hose 2 is inflated and the upper sides of the mother-and-child sealing strip are bulged, thereby reducing the probability that the mother-and-child sealing strip is expanded by the gas in the sealed inner bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a waterproof packaging bag with an exhaust structure according to the utility model;

[0016] Figure 2 It is a schematic diagram of the connection between the second exhaust valve and the second sealing plug in the overall structure of a waterproof packaging bag with an exhaust structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the connection between the gas delivery hose 2 and the gas delivery hose 1 in the overall structure of a waterproof packaging bag with an exhaust structure of the utility model.

[0018] In the figure: 1. Waterproof outer bag; 2. Sealed inner bag; 3. Mother-and-child sealing strip; 4. Gas hose 1; 5. Gas hose 2; 6. Fixing block; 7. Exhaust valve 1; 8. Sealing plug 1; 9. Exhaust valve 2; 10. Sealing plug 2. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-3As shown, a waterproof packaging bag with an exhaust structure comprises a waterproof outer bag 1, a sealed inner bag 2 is arranged inside the waterproof outer bag 1, and a mother-and-child sealing strip 3 is fixedly connected to the upper position of the inner wall of the front and rear ends of the sealed inner bag 2;

[0021] An air hose 4 is provided inside the waterproof outer bag 1 at the rear and near the front and rear ends of the sealed inner bag 2. The top of the air hose 4 is connected to a air hose 2 5, and the two air hoses 25 are located above the parent-child sealing strip 3. A fixing block 6 is fixedly installed at the upper front end of the waterproof outer bag 1, and an exhaust valve 7 is fixedly installed at the front end of the fixing block 6. A sealing plug 8 is provided at the air outlet of the exhaust valve 7, and the air inlet of the exhaust valve 7 is connected to an end of the air hose 25 away from the air hose 4.

[0022] In this embodiment, an exhaust valve 29 is provided at the lower side of the sealed inner bag 2, and a sealing plug 210 matching the exhaust valve 210 is provided on one side of the waterproof outer bag 1, and the sealing plug 210 is inserted into the exhaust valve 210. By pulling the sealing plug 210 on the waterproof outer bag 1 away from the sealed inner bag 2, the sealing plug 210 is separated from the exhaust valve 210 on the sealed inner bag 2, and then the personnel can slightly squeeze the upper part of the sealed inner bag 2 to squeeze out the excess gas in the sealed inner bag 2.

[0023] In this embodiment, the waterproof outer bag 1 and the sealed inner bag 2 are both softly configured, and the exhaust valve 2 9 is connected to the sealed inner bag 2 and the waterproof outer bag 1 through the sealing plug 2 10 respectively through sealant. The soft configuration facilitates the squeezing of the sealed inner bag 2 and the waterproof outer bag 1, and the connection through the sealant can prevent air leakage.

[0024] In this embodiment, the upper part of the waterproof outer bag 1 is heat-melt sealed, and the front and rear ends of the upper part are provided with tear lines and heat-melt sealed. Since the sealed inner bag 2 is arranged in the waterproof outer bag 1, when the waterproof outer bag 1 is heat-melt sealed, the upper part of the sealed inner bag 2 can be sealed for the second time to further reduce the probability of air leakage.

[0025] In this embodiment, a plurality of equally spaced air inlet holes are provided at the lower portion of the outer ring of the air hose 4. The air hose 1 4 and the air hose 2 5 are both connected to the inner wall of the waterproof outer bag 1 by adhesive. The air inlet holes facilitate the entry of the internal gas of the waterproof outer bag 1 into the air hose 4.

[0026] It should be noted that the utility model is a waterproof packaging bag with an exhaust structure. When in use, first, when exhausting the sealed inner bag 2, the sealing plug 10 on the waterproof outer bag 1 can be pulled away from the sealed inner bag 2 as needed to separate the sealing plug 10 from the exhaust valve 9 on the sealed inner bag 2. After that, the personnel can slightly squeeze the upper part of the sealed inner bag 2 to squeeze out the excess gas.

[0027] The sealed inner bag 2 is arranged inside the waterproof outer bag 1. When exhausting, the sealed inner bag 2 does not directly contact the outside air, which can reduce the probability of moisture in the internal objects. When exhausting the waterproof outer bag 1, the personnel can pull the sealing plug 8 out of the exhaust valve 7, and then squeeze the waterproof outer bag 1. The gas in the waterproof outer bag 1 enters the gas hose 4 and the gas hose 2 5 through the air inlet. Since the gas hose 2 5 is connected to the exhaust valve 7, the gas can be discharged from the inside of the waterproof outer bag 1 when the exhaust valve 7 is opened. Most of the gas in the waterproof outer bag 1 can be discharged as needed, reducing the space occupied when it is stored.

[0028] After exhausting, the sealing plug 8 can be inserted into the exhaust valve 7 again to seal it. Then, when storing, the waterproof outer bag 1 and the sealed inner bag 2 are squeezed, and the air enters the gas hose 25 through the air inlet hole, and the exhaust valve 7 is sealed again, so that the gas that cannot be exhausted props up the gas hose 25. Because the two gas hoses 25 are arranged at the parent-child sealing strip 3 of the sealed inner bag 2, the gas hoses 25 bulge on both sides of the parent-child sealing strip 3, thereby squeezing the upper part of the parent-child sealing strip 3, and the probability of the parent-child sealing strip 3 being squeezed and stretched can be reduced.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A waterproof packaging bag with an exhaust structure, characterized in that: It comprises a waterproof outer bag (1), wherein a sealed inner bag (2) is arranged inside the waterproof outer bag (1), and a mother-and-child sealing strip (3) is fixedly connected to the upper position of the inner wall of the front and rear ends of the sealed inner bag (2); A gas hose (4) is arranged inside the waterproof outer bag (1) at the rear and near the front and rear ends of the sealed inner bag (2); the top end of the gas hose (4) is connected to a gas hose (5), and the two gas hoses (5) are located above the parent-child sealing strip (3); a fixing block (6) is fixedly installed at the upper front end of the waterproof outer bag (1); an exhaust valve (7) is fixedly installed at the front end of the fixing block (6); a sealing plug (8) is arranged at the air outlet of the exhaust valve (7), and an air inlet of the exhaust valve (7) is connected to an end of the gas hose (5) away from the gas hose (4).

2. The waterproof packaging bag with an exhaust structure according to claim 1, characterized in that: A second exhaust valve (9) is arranged at the lower side of one side of the sealed inner bag (2), and a second sealing plug (10) matching the second exhaust valve (9) is arranged on one side penetrating the waterproof outer bag (1), and the second sealing plug (10) is inserted into the second exhaust valve (9).

3. The waterproof packaging bag with an exhaust structure according to claim 2, characterized in that: The waterproof outer bag (1) and the sealed inner bag (2) are both soft, and the second exhaust valve (9) is connected to the sealed inner bag (2) and the waterproof outer bag (1) through the second sealing plug (10) and the sealing glue.

4. The waterproof packaging bag with an exhaust structure according to claim 1, characterized in that: The upper part of the waterproof outer bag (1) is provided with a heat-melt edge-sealed configuration, and easy-tear lines are provided at the front and rear ends of the upper part.

5. The waterproof packaging bag with an exhaust structure according to claim 1, characterized in that: A plurality of air inlet holes arranged at equal distances are provided at the lower portion of the outer ring of the gas delivery hose 1 (4), and the gas delivery hose 1 (4) and the gas delivery hose 2 (5) are both connected to the inner wall of the waterproof outer bag (1) by adhesive.

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