Labyrinth exhaust re-packaging bag

Abstract

The utility model discloses a labyrinth exhaust re-packaging bag, which relates to the technical field of packaging bags and comprises a bag body surface, two sides of the bag body surface are connected with a bag back surface through organ type insertion edges, a bottom sealing strip is arranged at the bottom of the bag body surface, an exhaust adding layer is arranged between the bag body surface and the bag back surface, and an exhaust channel is formed between the bag body surface and the exhaust adding layer. Reinforcing belts are arranged on the two sides of the bag back face. The independent exhaust adding layer is arranged in the heavy packaging bag, the exhaust channel is designed between the exhaust adding layer and the bag body face, a labyrinth type exhaust structure is formed, the sealing performance of the heavy packaging bag can be guaranteed, and material leakage generated when powder or fine particle materials are packaged is avoided; and meanwhile, stable and efficient exhaust capacity is achieved, during stacking, internal gas exhaust is rapidly achieved through the pressure of the heavy bags and the external pressure, the practicability of the heavy bags is improved, and the transportation efficiency and stability of materials are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a maze-venting heavy-duty packaging bag. Background Art

[0002] The packaging and transportation of powdered or finely divided materials are crucial in industries like fine chemicals and fermented feed. Traditionally, woven bags have been widely used in these industries due to their breathability and load-bearing capacity. However, these bags can easily become unstable during palletizing due to residual air trapped within them, potentially compromising product quality and safety. With increasing transportation and storage demands, specially designed degassing bags have become a solution.

[0003] The unique design of degassing bags allows air to gradually escape while maintaining a sealed seal, thereby reducing internal pressure. This process relies on the bag's own weight to gradually compact the material, improving the bag's stability and preventing it from tipping or deforming during transport. This is particularly important for fine particles, which require even greater packaging stability. Any slight change could lead to packaging damage or material leakage.

[0004] However, traditional degassing bags still have some drawbacks. For example, during the degassing process, the material may be spilled or lost, affecting the packaging effect and the integrity of the material. In addition, some degassing bags may not be durable enough to withstand long-term heavy pressure, thus affecting their service life and functional performance.

[0005] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0006] In response to the problems in the related art, the utility model proposes a labyrinth exhaust heavy bag to overcome the above technical problems existing in the existing related art.

[0007] To this end, the specific technical solutions adopted in this utility model are as follows:

[0008] A labyrinth venting heavy-duty bag comprises a bag body, both sides of which are connected to the bag back via accordion-type inserts, a bottom seal is provided at the bottom of the bag body, an venting layer is provided between the bag body and the bag back, an exhaust channel is formed between the bag body and the venting layer, and reinforcement belts are provided on both sides of the bag back.

[0009] Furthermore, in order to utilize the back seal to package the strip-shaped heavy-duty bag into a bag-shaped structure with openings at both ends, thereby improving the loading capacity of the heavy-duty bag, the bag body, accordion-type insert and the back of the bag are an integrated structure, and a back seal is provided in the middle of the back of the bag.

[0010] Furthermore, in order to increase the friction between bags through anti-slip bumps and improve the stability of heavy bags during stacking, several anti-slip bumps are provided on both sides of the bag surface, and the anti-slip bumps are located between the accordion-type insert and the exhaust layer.

[0011] Furthermore, in order to tightly fix the exhaust layer through four rubber strips to form a hollow exhaust channel and realize the discharge of gas in the bag, side rubber strips are arranged between the two sides of the exhaust layer and the bag body surface, and an inner rubber strip is arranged in the middle of the exhaust layer between the bag body surface, and the exhaust channel is located between the side rubber strips and the inner rubber strips.

[0012] Furthermore, in order to completely exhaust the gas inside the heavy bag through the evenly distributed exhaust cuts, a plurality of exhaust cuts are opened in the overlapping portion of the exhaust layer and the exhaust channel.

[0013] Furthermore, in order to form a one-way exhaust channel, and the exhaust channel will not be sealed at the sealing point, thereby improving the exhaust capacity of the heavy bag, the exhaust layer, the bag body and the bottom of the back of the bag are all kept sealed by the bottom seal, and a sealing auxiliary line is set on the top of the bag body. The part where the top of the bag body overlaps with the exhaust layer is not sealed.

[0014] Furthermore, in order to utilize the bag handle formed by extending the reinforcement belt outward to directly carry the heavy bag and improve the portability of the heavy bag, a strip reinforcement groove is provided on the surface of the reinforcement belt, and both ends of the reinforcement belt pass through to the back of the bag, and a bag handle is provided between the two reinforcement belts, and an anti-tear strip is provided between the bag handle and the back of the bag.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting up an independent exhaust layer inside the heavy-duty bag and designing an exhaust channel between the exhaust layer and the bag body, a labyrinth-type exhaust structure is formed, which can ensure the sealing performance of the heavy-duty bag itself and avoid material leakage when packaging powder or fine particles. At the same time, it has stable and efficient exhaust capacity. During stacking, the internal gas is quickly discharged through the heavy-duty bag itself and external pressure, which improves the practicality of the heavy-duty bag and ensures the transportation efficiency and stability of the materials.

[0017] 2. By adding two fixed reinforcement straps on the back of the bag, the carrying capacity of the heavy bag can be effectively improved, and the deformation or damage of the heavy bag can be avoided during the fully loaded packaging and transportation process. At the same time, the heavy bag can be lifted from the bottom with the help of the outer bag handle, which greatly improves the portability of the heavy bag.

[0018] 3. By adding anti-slip bumps on the bag surface, the stability during stacking can be improved, the friction between heavy bags can be increased, and the phenomenon of heavy bags shifting and sliding can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the front structure of a labyrinth exhaust heavy bag according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the back structure of a labyrinth exhaust heavy bag according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the back structure of a labyrinth venting heavy bag according to an embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the front structure of the back side of a maze-vented heavy bag-in-bag according to an embodiment of the present utility model.

[0024] In the picture:

[0025] 1. Bag body; 2. Accordion-style edging; 3. Bag back; 4. Bottom seal; 5. Venting layer; 6. Venting channel; 7. Reinforcement tape; 8. Back seal; 9. Anti-slip bumps; 10. Side adhesive strips; 11. Inner adhesive strips; 12. Venting cutouts; 13. Sealing auxiliary line; 14. Strip reinforcement grooves; 15. Bag handle; 16. Anti-tear strips. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the present utility model, a labyrinth venting heavy bag is provided.

[0028] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figures 1-4As shown, the maze venting heavy-duty bag according to the embodiment of the present invention includes a bag body 1, both sides of the bag body 1 are connected to the bag back 3 through accordion-type inserts 2, a bottom seal 4 is provided at the bottom of the bag body 1, a venting layer 5 is provided between the bag body 1 and the bag back 3, an exhaust channel 6 is formed between the bag body 1 and the venting layer 5, and reinforcement belts 7 are provided on both sides of the bag back 3.

[0029] With the help of the above technical solution, an independent exhaust layer 5 is set inside the heavy bag, and an exhaust channel 6 is designed between the exhaust layer 5 and the bag body 1 to form a labyrinth exhaust structure, which can ensure the sealing performance of the heavy bag itself and avoid material leakage when packaging powder or fine particles. At the same time, it has stable and efficient exhaust capabilities. During stacking, the internal gas is quickly discharged through the heavy bag itself and external pressure, thereby improving the practicality of the heavy bag and ensuring the transportation efficiency and stability of the material.

[0030] In one embodiment, for the above-mentioned bag body 1, the bag body 1, the accordion-type insert 2 and the bag back 3 are an integrated structure, and a back seal 8 is provided in the middle position of the bag back 3, so that the back seal 8 can be used to package the strip-shaped heavy-duty bag into a bag-shaped structure with openings at both ends, thereby improving the loading capacity of the heavy-duty bag.

[0031] In one embodiment, for the above-mentioned bag body 1, a number of anti-slip bumps 9 are provided on both sides of the surface of the bag body 1, and the anti-slip bumps 9 are located between the accordion-type insert 2 and the exhaust layer 5, thereby increasing the friction between bags through the anti-slip bumps 9 and improving the stability of heavy bags during stacking.

[0032] In one embodiment, for the above-mentioned exhaust layer 5, side rubber strips 10 are provided between the two sides of the exhaust layer 5 and the bag body surface 1, and an inner rubber strip 11 is provided in the middle of the exhaust layer 5 between the bag body surface 1. The exhaust channel 6 is located between the side rubber strips 10 and the inner rubber strip 11, so that the exhaust layer 5 is tightly fixed by the four rubber strips to form a hollow exhaust channel 6, thereby realizing the discharge of gas in the bag.

[0033] In one embodiment, for the above-mentioned exhaust layer 5, a plurality of exhaust cutouts 12 are provided at the portion where the exhaust layer 5 overlaps with the exhaust channel 6, so that the evenly distributed exhaust cutouts 12 serve as the entrance to the labyrinthine exhaust channel to completely exhaust the gas inside the heavy bag.

[0034] In one embodiment, for the above-mentioned exhaust layer 5, the exhaust layer 5, the bag body 1 and the bottom of the bag back 3 are all kept sealed by the bottom seal 4, and a sealing auxiliary line 13 is provided on the top of the bag body 1. The part where the top of the bag body 1 overlaps with the exhaust layer 5 is not sealed, thereby forming a one-way exhaust channel 6, and the exhaust channel 6 will not be sealed at the sealing point, thereby ensuring the exhaust capacity of the heavy bag.

[0035] In one embodiment, for the above-mentioned reinforcement belt 7, a strip reinforcement groove 14 is provided on the surface of the reinforcement belt 7, both ends of the reinforcement belt 7 pass through the back of the bag 3, and a bag handle 15 is provided between the two reinforcement belts 7, and an anti-tear strip 16 is provided between the bag handle 15 and the back of the bag 3, so that the bag handle 15 formed by extending outward from the reinforcement belt 7 can be used to directly carry the heavy bag, thereby improving the portability of the heavy bag.

[0036] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0037] In actual application, the heavy bag is pre-sealed on the back to form a back seal 8, and then the exhaust layer 5 is pasted to the corresponding position inside the bag body 1 by gluing, and finally heat-sealed at the bottom using heat-sealing technology to form a bottom seal 4. In addition, the reinforcement tape 7 is bonded to the back of the bag 3 with glue, and the two ends of the reinforcement tape 7 are inserted to the outside of the back of the bag 3, and the two ends of the reinforcement tape 7 are then connected to form a bag handle 15. Finally, a heavy bag structure with a single-port input and output is formed, which is used for packaging and transportation of materials. After the material is packaged, it needs to be sealed. It can be done by directly bonding the bag body 1 and the top of the bag back 3 with pre-coated glue or tape, or by using heat-sealing technology. However, it is necessary to keep the overlapping part of the exhaust layer 5 and the bag body 1 from bonding to maintain the flow of the exhaust channel 6.

[0038] In summary, with the help of the above technical solution of the present invention, by setting an independent exhaust layer 5 inside the heavy bag and designing an exhaust channel 6 between the exhaust layer 5 and the bag body surface 1, a labyrinth-type exhaust structure is formed, which can ensure the sealing performance of the heavy bag itself and avoid material leakage when packaging powder or fine granular materials; at the same time, it has a stable and efficient exhaust capacity. During stacking, the internal gas is quickly discharged through the heavy bag itself and external pressure, which improves the practicality of the heavy bag and ensures the transportation efficiency and stability of the material. By adding two fixed reinforcement strips 7 on the back 3 of the bag, the carrying capacity of the heavy bag can be effectively improved, and the deformation or damage of the heavy bag can be avoided during the fully loaded packaging and transportation process. At the same time, the bag can be lifted from the bottom with the help of the outer bag handle 15, which greatly improves the portability of the heavy bag. By adding anti-slip bumps 9 on the bag body surface 1, the stability during stacking can be improved, the friction between the heavy bags can be increased, and the phenomenon of the heavy bags shifting and sliding can be avoided.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A labyrinth venting heavy bag, comprising a bag body (1), both sides of which are connected to a bag back (3) via accordion-type inserts (2), characterized in that: A bottom seal (4) is provided at the bottom of the bag body surface (1), an exhaust layer (5) is provided between the bag body surface (1) and the bag back surface (3), and an exhaust channel (6) is formed between the bag body surface (1) and the exhaust layer (5); Reinforcement strips (7) are provided on both sides of the back side (3) of the bag.

2. A labyrinth venting heavy bag according to claim 1, characterized in that: The bag body (1), the accordion-type insert (2) and the bag back (3) are an integrated structure, and a back seal (8) is provided in the middle of the bag back (3).

3. A labyrinth venting heavy bag according to claim 1 or 2, characterized in that: A plurality of anti-slip convex points (9) are provided on both sides of the surface of the bag body (1), and the anti-slip convex points (9) are located between the accordion-type inserting edge (2) and the exhaust layer (5).

4. A labyrinth venting heavy bag according to claim 1, characterized in that: Side rubber strips (10) are provided between the two sides of the exhaust layer (5) and the bag body surface (1), an inner rubber strip (11) is provided between the middle of the exhaust layer (5) and the bag body surface (1), and the exhaust channel (6) is located between the side rubber strips (10) and the inner rubber strip (11).

5. A labyrinth venting heavy bag according to claim 4, characterized in that: A plurality of exhaust cutouts (12) are provided at the portion where the exhaust layer (5) overlaps with the exhaust channel (6).

6. The labyrinth venting heavy bag according to claim 1, characterized in that: The exhaust layer (5), the bag body (1) and the bottom of the bag back (3) are all sealed by the bottom seal (4), a sealing auxiliary line (13) is provided on the top of the bag body (1), and the portion where the top of the bag body (1) overlaps with the exhaust layer (5) is not sealed.

7. The labyrinth venting heavy bag according to claim 1, characterized in that: The surface of the reinforcement strip (7) is provided with a strip-shaped reinforcement groove (14), both ends of the reinforcement strip (7) pass through the back of the bag back (3), and a bag handle (15) is provided between the two reinforcement strips (7), and an anti-tear strip (16) is provided between the bag handle (15) and the bag back (3).

Images