Flexible packaging bag capable of exhausting air automatically
By incorporating ventilation holes and a thermal expansion structure into the packaging bag, the problem of the bag bursting open in a microwave oven is solved, achieving safe heating and sealing to prevent liquid leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-03
AI Technical Summary
Existing packaging bags are prone to bursting open when heated in a microwave oven, causing the contents to spill out and making them difficult to clean.
An automatically venting flexible packaging bag was designed. By setting vent holes and easy-connect strips on the sealing part, the vent holes are automatically opened when heated using a thermal expansion mechanism. Combined with the interlocking structure of convex and concave bones, the packaging bag can be vented and resealed.
It effectively prevents the packaging bag from expanding and exploding in the microwave oven, ensuring the safety of the contents, and maintains a seal when not in use to prevent liquid leakage.
Smart Images
Figure CN224076083U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag technology, and more specifically, to an automatically venting flexible packaging bag. Background Technology
[0002] Packaging bags are bags used to package various products, making it convenient to transport and store goods during production and distribution. Some packaging bags can be directly used for microwave heating. However, when heating, existing packaging bags are prone to bursting due to excessive internal heat, which may cause the contents to splatter inside the microwave oven, resulting in a messy and difficult-to-clean interior. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an automatically venting soft packaging bag, which has the advantage of preventing the packaging bag from bursting open inside the microwave oven.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatically venting soft packaging bag, comprising a packaging bag, a sealing part fixedly installed on the top of the packaging bag, a sealing opening inside the sealing part, an easy-connection strip fixedly installed inside the sealing opening, an installation groove inside the easy-connection strip, a water-soluble sheet material fixedly installed inside the installation groove, a venting hole inside the sealing part, a sealing sheet inside the venting hole, and the sealing sheet and the easy-connection strip being fixedly connected.
[0005] As a preferred technical solution of this utility model, a sealing part two is fixedly installed on the top of the packaging bag, and a concave bone is opened inside the sealing part two, and a convex bone is engaged inside the concave bone.
[0006] As a preferred embodiment of this utility model, a baffle is fixedly installed inside the packaging bag, and a connecting strip is fixedly installed inside the baffle, with the connecting strip being fixedly connected to the packaging bag.
[0007] As a preferred embodiment of this utility model, the easy-connection strip is a cuboid, and the packaging bag is in contact with the sealing part two, and the easy-connection strip is hot-pressed to the right side of the sealing part two.
[0008] As a preferred embodiment of this utility model, a handle is fixedly installed on the left side of the sealing part two. The handle is located above the packaging bag, and the inside of the handle is hollow.
[0009] As a preferred technical solution of this utility model, there are multiple mounting grooves and multiple water sheet materials, and the multiple mounting grooves and multiple water sheet materials are all located inside the easy-connection strip, and the multiple water sheet materials are circular.
[0010] As a preferred embodiment of this utility model, there are multiple vent holes, all of which are located below the sealing opening and are connected to the sealing opening.
[0011] As a preferred embodiment of this utility model, there are multiple connecting strips, with gaps in the middle of the multiple connecting strips, and the multiple connecting strips are respectively located inside the packaging bag.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model features a sealing part (first part) fixedly installed at the top of a packaging bag. A sealing opening is provided inside the sealing part (first part), and an easy-connect strip is fixedly installed inside the sealing opening. An installation groove is provided inside the easy-connect strip, and a water-soluble sheet material is fixedly installed inside the installation groove. A vent is provided inside the sealing part (first part), and a sealing sheet is provided inside the vent. The sealing sheet and the easy-connect strip are fixedly connected. When the food inside the packaging bag needs to be heated in a microwave oven, the packaging bag is laid flat. During heating, the residual heat inside the installation groove expands, causing the sealing part (first part) to detach from the sealing part (second part). This causes the sealing part (first part) to expand upwards, thus pulling the sealing sheet away from the vent, opening the vent. Because the vent connects to the inside of the packaging bag, it allows for ventilation, preventing the risk of the packaging bag expanding and exploding.
[0014] 2. This utility model features a sealing part two fixedly installed at the top of the packaging bag. A concave bone is formed inside the sealing part two, and a convex bone is engaged inside the concave bone, with the convex bone fixedly connected to the sealing part one. When the mounting groove is heated and expands, it causes the sealing part one to expand upwards, causing the convex bone to detach from the concave bone, thus opening the inside of the packaging bag and ensuring ventilation. Simultaneously, if the food inside is not completely consumed, the convex bone can be pressed into the concave bone, sealing the inside of the packaging bag through the engaging action of the concave bone, facilitating storage. Additionally, a baffle is fixedly installed inside the packaging bag. When heated, liquids such as soup or liquid may appear inside the packaging bag. The baffle will block these liquids during heating, preventing them from flowing out through the vents and causing liquid to accumulate inside the microwave oven. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;
[0017] Figure 3 This is a schematic diagram of the sealing port structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the retaining structure of this utility model;
[0019] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.
[0020] In the diagram: 1. Packaging bag; 2. Sealing part one; 3. Sealing port; 4. Easy-connect strip; 5. Mounting groove; 6. Water-resistant sheet material; 7. Vent hole; 8. Sealing sheet; 9. Sealing part two; 10. Concave bone; 11. Protruding bone; 12. Stop; 13. Connecting strip; 14. Handle. 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] like Figures 1 to 5 As shown, this utility model provides an automatically venting soft packaging bag, including a packaging bag 1. A sealing part 2 is fixedly installed on the top of the packaging bag 1. A sealing opening 3 is opened inside the sealing part 2. An easy-connecting strip 4 is fixedly installed inside the sealing opening 3. An installation groove 5 is opened inside the easy-connecting strip 4. A water-soluble sheet material 6 is fixedly installed inside the installation groove 5. A vent hole 7 is opened inside the sealing part 2. A sealing sheet 8 is provided inside the vent hole 7. The sealing sheet 8 is fixedly connected to the easy-connecting strip 4.
[0023] When the food inside the packaging bag 1 needs to be placed inside the microwave oven for heating, the packaging bag 1 is laid flat. When heating, the residual heat inside the mounting groove 5 will cause it to expand, causing the sealing part 1 2 to separate from the sealing part 2 9. This causes the sealing part 1 2 to expand upward, thus causing the sealing sheet 8 to detach from the inside of the vent hole 7, opening the vent hole 7. As the inside of the vent hole 7 is connected to the inside of the packaging bag 1, the vent hole 7 has a ventilation effect, thus preventing the risk of the packaging bag 1 expanding and exploding.
[0024] Among them, a sealing part 2 9 is fixedly installed on the top of the packaging bag 1, and a concave bone 10 is opened inside the sealing part 2 9, and a protruding bone 11 is engaged inside the concave bone 10.
[0025] The protruding bone 11 is fixedly connected to the sealing part 2. When the mounting groove 5 is heated and expands, it will cause the sealing part 2 to expand upward, causing the protruding bone 11 to separate from the concave bone 10, thus opening the inside of the packaging bag 1 and ensuring ventilation. At the same time, when the food inside is not finished, the protruding bone 11 can be pressed into the concave bone 10, so that the protruding bone 11 can seal the inside of the packaging bag 1 through the snap-fit action of the concave bone 10, thus facilitating storage.
[0026] The packaging bag 1 has a fixed opening 12 inside, and a connecting strip 13 is fixedly installed inside the opening 12. The connecting strip 13 is fixedly connected to the packaging bag 1.
[0027] When heated, the food inside the packaging bag 1 may contain liquids such as soup. At this time, the baffle 12 will block these liquids during heating to prevent them from flowing out through the vent 7 and causing liquid to appear inside the microwave oven.
[0028] The easy-connect strip 4 is a cuboid, and the packaging bag 1 is in contact with the sealing part 9. The easy-connect strip 4 is hot-pressed to the right side of the sealing part 9.
[0029] The main function of the easy-connect strip 4 is to seal the sealing part 2 and the sealing part 1 after being hot-pressed with the sealing part 2 9, so as to maintain the sealing effect before heating.
[0030] A handle 14 is fixedly installed on the left side of the sealing part 2 9. The handle 14 is located above the packaging bag 1, and the inside of the handle 14 is hollow.
[0031] The main function of the handle 14 is to facilitate the handling of the packaging bag 1 while preventing burns when handling it after heating.
[0032] There are multiple mounting slots 5 and multiple water sheet materials 6. The multiple mounting slots 5 and multiple water sheet materials 6 are all located inside the easy-connect strip 4. The multiple water sheet materials 6 are circular.
[0033] The main function of the multiple water-thin sheet materials 6 is to expand when the packaging bag 1 is heated, so that the inside of the packaging bag 1 can be opened and has a convenient air-breathing effect. At the same time, the multiple water-thin sheet materials 6 are evenly distributed inside the easy-connect strip 4, so as to achieve expansion according to different temperatures and prevent large shaking caused by rapid expansion.
[0034] There are multiple vent holes 7, all of which are located below the sealing port 3 and are connected to the sealing port 3.
[0035] The main function of the multiple vent holes 7 is that when the sealing part 1 2 and the sealing part 2 9 are sealed together, the multiple vent holes 7 are attached to the sealing part 2 9 and sealed by the sealing sheet 8. When the multiple water sheet materials 6 expand, since the sealing sheet 8 and the water sheet material 6 are fixedly connected, the sealing sheet 8 will have a certain displacement, so that the multiple vent holes 7 cannot be completely blocked, thereby achieving the effect of air permeability.
[0036] There are multiple connecting strips 13, with gaps in the middle of the multiple connecting strips 13, and the multiple connecting strips 13 are located inside the packaging bag 1.
[0037] The multiple connecting strips 13 have a certain degree of easy tearing effect, and at the same time, due to the gaps in the middle, they have a certain degree of air permeability when heated.
[0038] Working principle and usage process of this utility model:
[0039] Firstly, a sealing part 2 is fixedly installed on the top of the packaging bag 1. A sealing opening 3 is opened inside the sealing part 2. An easy-connecting strip 4 is fixedly installed inside the sealing opening 3. An installation groove 5 is opened inside the easy-connecting strip 4. A water-based sheet material 6 is fixedly installed inside the installation groove 5. A vent hole 7 is opened inside the sealing part 2. A sealing sheet 8 is installed inside the vent hole 7. The sealing sheet 8 is fixedly connected to the easy-connecting strip 4. When the food inside the packaging bag 1 needs to be placed in the microwave oven for heating, the packaging bag 1 is laid flat. When heating, the residual heat inside the installation groove 5 will expand, causing the sealing part 2 to separate from the sealing part 9. This causes the sealing part 2 to expand upward, thus causing the sealing sheet 8 to separate from the vent hole 7, opening the vent hole 7. Since the inside of the vent hole 7 is connected to the inside of the packaging bag 1, the vent hole 7 has a venting effect, thus preventing the risk of the packaging bag 1 expanding and exploding.
[0040] Secondly, a sealing part 2 9 is fixedly installed on the top of the packaging bag 1. A concave bone 10 is provided inside the sealing part 2 9, and a protruding bone 11 is engaged inside the concave bone 10. The protruding bone 11 is fixedly connected to the sealing part 2. When the mounting groove 5 is heated and expands, it will cause the sealing part 2 to expand upward, causing the protruding bone 11 to disengage from the concave bone 10, thus opening the inside of the packaging bag 1 and achieving the effect of ensuring ventilation.
[0041] Finally, if the food inside is not finished, the protruding bone 11 can be pressed into the concave bone 10, so that the protruding bone 11 seals the inside of the packaging bag 1 through the snapping action of the concave bone 10, achieving the effect of convenient storage. At the same time, a baffle 12 is fixedly installed inside the packaging bag 1. When heating, the food inside the packaging bag 1 may contain liquids such as soup. At this time, the baffle 12 will block these liquids during heating, preventing the liquid from flowing out through the vent 7 and causing liquid to appear inside the microwave oven.
[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatically ventable soft pack comprising a pack (1), characterized in that: The upper part of the packaging bag (1) is fixedly installed with a sealing part one (2), the inside of the sealing part one (2) is provided with a sealing opening (3), the inside of the sealing opening (3) is fixedly installed with an easy plug-in strip (4), the inside of the easy plug-in strip (4) is provided with an installation groove (5), the inside of the installation groove (5) is fixedly installed with a water sheet material (6), the inside of the sealing part one (2) is provided with a breathable hole (7), the inside of the breathable hole (7) is provided with a sealing sheet (8), and the sealing sheet (8) is fixedly connected with the easy plug-in strip (4).
2. The self-venting flexible pouch of claim 1, wherein: The upper part of the packaging bag (1) is fixedly installed with a sealing part two (9), the inside of the sealing part two (9) is provided with a concave bone (10), and the inside of the concave bone (10) is clamped with a convex bone (11).
3. The self-venting flexible pouch of claim 1, wherein: The inside of the packaging bag (1) is fixedly installed with a blocking opening (12), the inside of the blocking opening (12) is fixedly installed with a connecting strip (13), and the connecting strip (13) is fixedly connected with the packaging bag (1).
4. The self-venting flexible pouch of claim 2, wherein: The easy plug-in strip (4) is a cuboid, and the packaging bag (1) contacts the sealing part two (9), and the easy plug-in strip (4) is hot-pressed to the right side of the sealing part two (9).
5. The self-venting flexible pouch of claim 2, wherein: The left side of the sealing part two (9) is fixedly installed with a handle (14), the handle (14) is located above the packaging bag (1), and the inside of the handle (14) is hollow.
6. The self-venting flexible pouch of claim 1, wherein: The installation groove (5) and the water sheet material (6) are provided with a plurality of, a plurality of installation grooves (5) and a plurality of water sheet materials (6) are located in the inside of the easy plug-in strip (4), and a plurality of water sheet materials (6) are circular.
7. The self-venting flexible pouch of claim 1, wherein: There are a plurality of breathable holes (7), a plurality of breathable holes (7) are located below the sealing opening (3), and a plurality of breathable holes (7) are connected with the sealing opening (3).
8. The self-venting flexible pouch of claim 3, wherein: There are a plurality of connecting strips (13), a plurality of connecting strips (13) have a gap in the middle, and a plurality of connecting strips (13) are located in the inside of the packaging bag (1).