Multi-layered composite protective tear-away valve port pocket

Abstract

This utility model belongs to the field of valve bag technology, specifically relating to a multi-layer composite protective tear-off valve bag, including an outer layer of the valve bag and a covering edge connected to the top of the outer layer of the valve bag. A tear strip is connected to the center of the surface of the covering edge, and a tear ring is connected to one end of the tear strip. A sealing wrapping tape is sewn to the inner wall of the opening of the covering edge. An iron strip is connected to the inner side of the tear strip. This utility model allows the outer layer of the valve bag to be used to be placed vertically on the ground. Then, a person passes their finger through the tear ring at one end of the tear strip and tears the tear strip on the surface of the covering edge. This causes the iron strip on the inner side of the tear strip to cut open inside the sealing wrapping tape, thereby opening the iron strip at the opening groove, allowing the top of the valve bag to open quickly, facilitating the rapid use of the material inside the valve bag.

Description

Technical Field

[0001] This utility model belongs to the field of valve bag technology, specifically relating to a multi-layer composite protective tear-off valve bag. Background Technology

[0002] Multi-layer composite protective valve bag is a type of packaging bag used for packaging powdery, granular, and other materials. It is made of multi-layer composite materials, has good protective performance, and features a tear-off opening at the bag opening for easy use.

[0003] The multi-layered composite structure of valve bags gives them excellent moisture-proof, waterproof, oxygen-proof, and light-blocking properties, effectively protecting materials from external environmental factors and extending their shelf life. In today's market, traditional valve bags are generally sealed by sewing. While this sewing process can ensure the valve bag's airtightness during transportation and storage to a certain extent, ensuring the safety and leak-free internal materials, the tightly interwoven stitches are difficult to handle with ordinary tools, often requiring specialized sharp knives to cut them open. The cutting action requires precise control of force and angle; even slight deviations can cause the material inside the bag to spill out, resulting in waste. Furthermore, this opening method is extremely time-consuming, especially when processing valve bags in batches, significantly increasing the time cost and greatly reducing work efficiency. Therefore, the valve bag opening method is extremely inconvenient and fails to meet the demands of modern efficient logistics and production operations. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer composite protective tear-off valve bag, aiming to solve the problem that existing valve bags, due to their tightly interwoven seams, are difficult to open with ordinary tools and often require the use of specially made sharp knives. The opening action requires precise control of force and angle; even slight deviations can cause the material inside the bag to spill out, resulting in waste. Furthermore, this opening method is extremely time-consuming, especially when processing valve bags in batches, significantly increasing the time cost and greatly reducing work efficiency. This makes the valve bag opening method extremely inconvenient and unable to meet the needs of modern efficient logistics and production operations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite protective tear-off valve bag, comprising an outer layer of the valve bag and a covering edge connected to the top of the outer layer of the valve bag, wherein a tear strip is connected to the center of the surface of the covering edge, one end of the tear strip is connected to a tear ring, a sealing wrapping tape is sewn to the inner wall of the opening of the covering edge, and an iron strip is connected to the inner side of the tear strip.

[0006] As a preferred embodiment of the multi-layer composite protective tear-off valve bag of this utility model, the tear strip and tear ring are made of nylon, and the tear strip is sewn to the covering edge.

[0007] As a preferred embodiment of the multi-layer composite protective tear-off valve bag of this utility model, the inner wall of the sealing wrapping tape is provided with an opening groove, and the opening groove is wrapped around the surface of the iron strip.

[0008] As a preferred embodiment of the multi-layer composite protective tear-off valve bag of this utility model, the cross-section of the iron strip is T-shaped, and the two sides of the iron strip are inclined blade-shaped structures.

[0009] As a preferred embodiment of the multi-layer composite protective tear-off valve bag of this utility model, the inner side of the outer layer of the valve bag is fused with an aluminum foil layer, and the inner side of the aluminum foil layer is fused with a plastic film.

[0010] As a preferred embodiment of the multi-layer composite protective tear-off valve bag of this utility model, the outer wall of the outer layer of the valve bag is provided with a measuring scale, and the interior of the outer layer of the valve bag is filled with a reinforcing mesh made of polyamide fiber.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention involves placing the outer layer of the valve bag vertically on the ground, then having a person insert their fingers through the tear ring at one end of the tear strip and tear the strip on the surface of the covering edge. This causes the iron strip inside the tear strip to cut open inside the sealing wrapping tape, thus opening the iron strip at the opening groove and quickly opening the top of the valve bag for easy access to the material inside. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of the valve bag of this utility model;

[0015] Figure 2 This is a schematic diagram of the valve bag tear-open structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the tear strip structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the iron bar of this utility model;

[0018] Figure 5 This is a schematic diagram of the valve pocket structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the reinforcement mesh installation structure of this utility model.

[0020] In the diagram: 1. Outer layer of valve bag; 101. Aluminum foil layer; 102. Plastic film; 2. Covering edge; 3. Tear strip; 4. Tear ring; 5. Sealing wrapping tape; 6. Opening groove; 7. Iron strip; 8. Measuring scale; 9. Reinforcing mesh. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 The present invention provides the following technical solution: a multi-layer composite protective tear-off valve bag, including an outer layer 1 of the valve bag and a covering edge 2 connected to the top of the outer layer 1 of the valve bag. A tear strip 3 is connected to the center of the surface of the covering edge 2. A tear ring 4 is connected to one end of the tear strip 3. A sealing wrapping tape 5 is sewn to the inner wall of the opening of the covering edge 2. An iron strip 7 is connected to the inner side of the tear strip 3.

[0023] Preferably, the tear strip 3 and the tear ring 4 are made of nylon, and the tear strip 3 is sewn to the covering edge 2.

[0024] In practical use, the use of tear strips 3 and tear rings 4 facilitates the tearing effect on the valve pocket, making it easy to open quickly.

[0025] Preferably, the inner wall of the sealing wrapping strip 5 is provided with an opening groove 6, which wraps around the surface of the iron strip 7.

[0026] In practical use, the iron strip 7 is hidden inside the opening groove 6 inside the sealing wrapping tape 5, thereby facilitating the sealing of the valve bag.

[0027] Preferably, the cross-section of the iron bar 7 is T-shaped, and the two sides of the iron bar 7 are inclined blade-shaped structures.

[0028] In practical use, the use of a blade-shaped iron strip 7 on the side makes it easy to quickly tear the tear strip 3 on the surface of the covering edge 2, improving the convenience of using the valve bag.

[0029] Preferably, the inner side of the outer layer 1 of the valve pocket is fused with an aluminum foil layer 101, and the inner side of the aluminum foil layer 101 is fused with a plastic film 102.

[0030] In practical use, the use of aluminum foil layer 101 and plastic film 102 enhances the multi-layer protection effect of the valve bag. In addition, aluminum foil layer 101 can effectively block oxygen, water vapor and light, preventing the material from getting damp, oxidizing and deteriorating. Meanwhile, plastic film 102 is in direct contact with the material and has good flexibility and chemical resistance, ensuring the safety and quality of the material.

[0031] Preferably, the outer wall of the valve bag outer layer 1 is provided with a metering scale 8, and the interior of the valve bag outer layer 1 is filled with a reinforcing mesh 9 made of polyamide fiber.

[0032] In practical use, by filling the inner part of the outer layer 1 of the valve bag with reinforcing mesh 9, the strength of the valve bag surface is improved, and the phenomenon of material spillage is avoided when a cut occurs.

[0033] The working principle of this utility model is as follows: The outer layer 1 of the valve bag to be used is placed vertically on the ground. Then, a person's finger passes through the tear ring 4 at one end of the tear strip 3 and tears the tear strip 3 on the surface of the covering edge 2. This causes the iron strip 7 on the inner side of the tear strip 3 to cut open inside the sealing wrapping tape 5, thereby opening the iron strip 7 at the opening groove 6, allowing the top of the valve bag to open quickly, facilitating the rapid use of the material inside the valve bag and improving the ease of opening the valve bag. In addition, the measuring scale 8 makes it convenient for personnel to measure the material inside the valve bag during the process of emptying it, which is convenient for operation. Furthermore, the use of the polyamide fiber reinforcing mesh 9 inside the outer layer 1 of the valve bag increases the strength of the valve bag surface and prevents leakage when the opening is made.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-layer composite protective tear-off valve bag, comprising an outer layer (1) of the valve bag and a covering edge (2) connected to the top of the outer layer (1) of the valve bag, characterized in that: A tear strip (3) is connected to the center of the surface of the covering edge (2), and a tear ring (4) is connected to one end of the tear strip (3). A sealing wrapping tape (5) is sewn into the inner wall of the opening of the covering edge (2), and an iron strip (7) is connected to the inner side of the tear strip (3).

2. The multi-layer composite protective tear-off valve bag according to claim 1, characterized in that: The tear strip (3) and tear ring (4) are made of nylon, and the tear strip (3) is sewn to the covering edge (2).

3. The multi-layer composite protective tear-off valve bag according to claim 1, characterized in that: The inner wall of the sealing wrapping strip (5) is provided with an opening groove (6), which is wrapped around the surface of the iron strip (7).

4. The multi-layer composite protective tear-off valve bag according to claim 1, characterized in that: The iron bar (7) has a T-shaped cross-section and the two sides of the iron bar (7) are inclined blade-shaped structures.

5. The multi-layer composite protective tear-off valve bag according to claim 1, characterized in that: The inner side of the outer layer (1) of the valve pocket is fused with an aluminum foil layer (101), and the inner side of the aluminum foil layer (101) is fused with a plastic film (102).

6. The multi-layer composite protective tear-off valve bag according to claim 1, characterized in that: The outer wall of the valve bag outer layer (1) is provided with a measuring scale (8), and the interior of the valve bag outer layer (1) is filled with a reinforcing mesh (9) made of polyamide fiber.

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