Self-heating dairy product packaging bag

Abstract

The utility model discloses a self-heating dairy product packaging bag, which belongs to the technical field of packaging bags, and comprises a packaging bag I, a packaging bag II, an outer soft bag and a tearing component, the packaging bag I is used for accommodating and packaging dairy products, the packaging bag II is used for storing water, and a heating bag is arranged at the bottom end in the outer soft bag. When dairy products in the first packaging bag need to be heated, due to the fact that the tail end of the first easy-to-tear strip is connected with the head end of the second easy-to-tear strip through the connecting belt, the first easy-to-tear strip only needs to be pulled to open the first easy-to-tear opening, then the first easy-to-tear strip continues to be pulled in the opposite direction, the second easy-to-tear strip is driven to open the second easy-to-tear opening in the bottom of the second packaging bag, and then the dairy products can be heated. And water in the packaging bag II flows into the bottom of the outer soft bag and is mixed with the heating bag to react and heat so as to heat the dairy product in the packaging bag I, so that the heating operation can be completed only by pulling the easy-to-tear strip I, the operation steps are reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, and more specifically, to a self-heating dairy product packaging bag. Background Technology

[0002] Self-heating dairy product packaging bags are portable packaging designs that can automatically heat dairy products, typically used outdoors, while traveling, or in situations where heating tools are unavailable. Their core principle is to generate heat through a chemical reaction inside or outside the packaging, heating the dairy product without the need for an external power source or fire. To use, specific areas are squeezed or torn to allow the chemical substances to come into contact and undergo an exothermic reaction (such as quicklime reacting with water to release heat), transferring the heat to the dairy product layer and raising its temperature.

[0003] Chinese Patent Announcement No. CN213169489U discloses a soft packaging bag for self-heating food. This solution uses a soft packaging bag to replace the existing box packaging, eliminating the need to reserve space for food and heating packs, thus greatly saving space. In this solution, the inner and outer bags are separated, and a self-sealing strip with embossed buckles is designed separately on the inner bag. This ensures the hygiene of the food and prevents contamination, while also facilitating rapid heating of the food. When outdoors, any remaining residue can be sealed inside the outer bag to prevent leakage. The bottoms of the outer and inner bags are pressed together, and the outer bag is divided into two outer cavities, which are placed on either side of the inner bag. Each outer cavity contains a heating pack, which can quickly heat the food inside the inner bag.

[0004] The above-mentioned solutions and existing self-heating packs require opening the bag, placing water and the self-heating pack separately, and then adding the food before heating. This process is cumbersome and does not improve ease of use.

[0005] Therefore, a self-heating dairy product packaging bag is proposed to address the above problems. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] This utility model provides a self-heating dairy product packaging bag, which can improve the problems existing in related technologies: when heating the food inside, it is necessary to open the bag, put in water and the self-heating pack separately, and then put in the food before heating. The operation steps are relatively cumbersome and not conducive to improving the convenience of use.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] This application provides a self-heating dairy product packaging bag, including: a first packaging bag, a second packaging bag, an outer soft bag, and a tear-off assembly. The first packaging bag contains packaged dairy products, the second packaging bag stores water, the outer soft bag is used to contain the first and second packaging bags, and a heating pack is provided at the bottom of the inner part of the outer soft bag. The tear-off assembly includes an easy-tear strip, an easy-tear strip, and a connecting strap. The end of the easy-tear strip and the beginning of the easy-tear strip are connected by the connecting strap. Pulling the easy-tear strip causes the easy-tear strip to be torn through the connecting strap, and the water stored inside the second packaging bag flows out and reacts with the heating pack to generate heat.

[0011] The technical solutions described in this application embodiment have at least the following technical effects:

[0012] A heating pack is installed at the bottom of the inner part of the outer soft packaging. When it is necessary to heat the dairy products in the first packaging bag, since the end of the first easy-tear strip and the beginning of the second easy-tear strip are connected by a connecting strip, you only need to pull the first easy-tear strip to open the first easy-tear opening, and then continue to pull the first easy-tear strip in the opposite direction to make it drive the second easy-tear strip to open the second easy-tear opening at the bottom of the second packaging bag. The water inside the second packaging bag will flow into the bottom of the outer soft packaging and mix with the heating pack to generate heat, thus heating the dairy products in the first packaging bag. Therefore, the heating operation can be completed by only pulling the first easy-tear strip, reducing operation steps and improving operation efficiency.

[0013] In some embodiments, the first packaging bag is fixedly installed inside the outer soft package, and a gap is provided between the first packaging bag and the bottom of the inner side of the outer soft package to accommodate the heating pack. The second packaging bag is fixedly installed inside the top side of the outer soft package, and a sealing component is provided at the top of the outer soft package.

[0014] In some embodiments, a hanging piece for suspension is fixedly installed on the top of the outer soft package, and a bottom support piece for support is fixedly installed on the bottom of the outer soft package.

[0015] In some embodiments, a tear head is fixedly connected to one end of the easy-tear strip, a tear head is fixedly connected to the other end of the easy-tear strip, an easy-tear opening adapted to the easy-tear strip is provided at the outer end of the outer soft bag, the easy-tear strip is installed inside the easy-tear opening, and an easy-tear opening adapted to the easy-tear strip is provided at the bottom end of the packaging bag, the easy-tear strip is installed inside the easy-tear opening.

[0016] In some embodiments, the sealing assembly includes a retaining plate fixedly mounted on the top of the outer soft bag, and a sealing opening fixedly mounted on the top of the retaining plate, the sealing opening being connected to the interior of the packaging bag.

[0017] In some embodiments, the sealing assembly further includes a sealing cap that is threadedly connected to the sealing port.

[0018] In some embodiments, the sealing assembly further includes a disposable sealing sheet, a pull ring fixedly connected to the top of the disposable sealing sheet, a positioning block fixedly connected to the bottom of the disposable sealing sheet, a pressure relief port opened at the outer end of the fixed sheet, the pressure relief port communicating with the interior of the packaging bag and being adapted to the positioning block, an abutment ring fixedly installed at the outer end of the fixed sheet, a sealing gasket installed at the bottom of the disposable sealing sheet, the sealing gasket and the abutment ring abutting against each other to form a seal, and the disposable sealing sheet and the fixed sheet being connected in one piece by hot melt adhesive. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the outer soft package structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the second structure of the packaging bag of this utility model;

[0022] Figure 4 This is a schematic diagram of the tear-off component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the sealing cap structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the disposable sealing cap structure of this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Soft outer packaging;

[0027] 2. Bottom support plate;

[0028] 3. Hanging clips;

[0029] 4. Sealing assembly; 41. Fixing plate; 42. Sealing port; 43. Sealing cover; 44. Disposable sealing plate; 45. Pull ring; 46. Abutment ring; 47. Pressure relief port; 48. Sealing gasket; 49. Positioning block; 410. Hot melt adhesive;

[0030] 5. Tear assembly; 51. Easy-tear strip one; 52. Easy-tear strip two; 53. Connecting strap; 54. Tear head two; 55. Tear head one;

[0031] 6. One packaging bag;

[0032] 7. Packaging bag two;

[0033] 8. Heating pack;

[0034] 9. Easy-tear opening 1;

[0035] 10. Easy-tear opening 2. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0037] Please see Figure 1 - Figure 6 A self-heating dairy product packaging bag includes: a first packaging bag 6, a second packaging bag 7, an outer soft bag 1, and a tear-off assembly 5. The first packaging bag 6 contains packaged dairy products, the second packaging bag 7 stores water, the outer soft bag 1 is used to contain the first packaging bag 6 and the second packaging bag 7, and a heating pack 8 is provided at the bottom of the inner side of the outer soft bag 1. The tear-off assembly 5 includes an easy-tear strip 51, an easy-tear strip 52, and a connecting strap 53. The end of the easy-tear strip 51 and the beginning of the easy-tear strip 52 are connected by the connecting strap 53. When the easy-tear strip 51 is pulled, the easy-tear strip 52 is torn through the connection of the connecting strap 53. The water stored inside the second packaging bag 7 flows out and comes into contact with the heating pack 8 to react and generate heat.

[0038] Packaging bag 6 is fixedly installed inside the outer soft package 1, and a gap is provided between packaging bag 6 and the bottom of the inner side of the outer soft package 1 to accommodate the heating pack 8. Packaging bag 7 is fixedly installed inside the top of the outer soft package 1, and a sealing component 4 is provided on the top of the outer soft package 1.

[0039] The top of the outer soft package 1 is fixedly installed with a hanging plate 3 for suspension, and the bottom of the outer soft package 1 is fixedly installed with a bottom support plate 2 for support.

[0040] The packaging bags in this solution are mainly used for packaging liquid beverages such as dairy products or fruit juices. They consist of three bags: an outer soft bag 1 with a hollow interior, and two bags, 6 and 7, are fixed inside. Both bags can be secured with glue or heat pressing. Bag 6 is fixed to the side of the outer soft bag 1, with a gap between its bottom and the bottom of the inner interior of the outer soft bag 1. This gap is for placing the heating pack 8. Bag 7 is fixed to the top of the inner interior of the outer soft bag 1, with its side touching the side of bag 6. The interior of bag 6 is mainly used for packaging dairy products and other beverages, while the interior of bag 7 stores water for reaction with the heating pack 8. The heating pack 8 is a metal-based heating agent, mainly composed of iron powder, aluminum powder, activated carbon, salts, diatomaceous earth, and vermiculite. It releases heat through reaction with oxygen and water. Iron powder is the most commonly used due to its low cost and high safety.

[0041] It is worth mentioning that the size and heat output of the heating pack 8 need to be calculated and tested in advance, based on the capacity of the dairy products inside the packaging bag 6, so that the heating pack 8 will not cause the dairy products inside the packaging bag 6 to boil after heating.

[0042] The tear-off assembly 5 is used to seal the packaging bag 2 7 and the outer soft package 1. When it is necessary to heat the dairy products inside the packaging bag 1 6, since the end of the easy-tear strip 1 51 and the beginning of the easy-tear strip 2 52 are connected by the connecting strip 53, it is only necessary to pull the easy-tear strip 1 51 to open the easy-tear opening 9, and then continue to pull the easy-tear strip 1 51 in the opposite direction, so that it drives the easy-tear strip 2 52 to open the easy-tear opening 2 10 at the bottom of the packaging bag 2 7. The water inside the packaging bag 2 7 will flow into the bottom of the outer soft package 1 and mix with the heating pack 8 to generate heat, thus heating the dairy products inside the packaging bag 1 6. Therefore, the heating operation can be completed by simply pulling the easy-tear strip 1 51, reducing the operation steps and improving the operation efficiency.

[0043] A sealing assembly 4 is provided on the top of the outer soft package 1. The sealing assembly 4 is used for pressure relief and the outlet for dairy products. A hanging piece 3 is also fixed on the top of the outer soft package 1. The hanging piece 3 not only makes it easy to place on the shelf for sale, but also allows it to be suspended during heating. A bottom support piece 2 is fixed at the bottom of the outer soft package 1. The bottom support piece 2 is mainly used to support the device so that it will not tip over when placed on a flat surface, which facilitates heating.

[0044] Please see Figure 3 and Figure 4 The first end of the easy-tear strip 51 is fixedly connected to the tear head 55, and the second easy-tear strip 52 is fixedly connected to the tear head 54. The outer soft package 1 has an easy-tear opening 9 that matches the easy-tear strip 51 at its outer end. The easy-tear strip 51 is installed inside the easy-tear opening 9. The bottom end of the packaging bag 7 has an easy-tear opening 10 that matches the easy-tear strip 52. The easy-tear strip 52 is installed inside the easy-tear opening 10.

[0045] The tear-off assembly 5 in this solution mainly consists of easy-tear strip 1 51 and easy-tear strip 2 52. Easy-tear strip 1 51 and easy-tear strip 2 52 are connected by a connecting strip 53. The end of easy-tear strip 1 51 and the beginning of easy-tear strip 2 52 are connected by the connecting strip 53. An easy-tear opening 1 9 is opened at the outer end of the outer soft package 1, and easy-tear strip 1 51 is installed inside easy-tear opening 1 9. An easy-tear opening 2 10 is opened at the bottom of the packaging bag 2 7, and easy-tear strip 2 52 is installed inside easy-tear opening 2 10 to seal the packaging bag 2 7.

[0046] A tear head 55 is connected to the first end of easy-tear strip 51, while a tear head 54 is connected to the end of easy-tear strip 52. Tear head 54 is a redundant design; if the connecting strip 53 breaks accidentally, easy-tear strip 52 can be torn open using tear head 54. When heating, simply pinch tear head 55 to tear easy-tear strip 51. After easily-tear strip 51 is completely torn off, pull it in the opposite direction to tear easy-tear strip 52. Water inside the packaging bag 7 will flow into the bottom of the outer soft bag 1, reacting with the heating pack 8 to generate heat. The tear opening 9 can then release hot air. Heating can be completed simply by pulling easy-tear strip 51, greatly reducing the number of steps and improving ease of use.

[0047] Please see Figure 5 and Figure 6 The sealing component 4 includes a fixing piece 41, which is fixedly installed on the top of the outer soft package 1. A sealing opening 42 is fixedly installed on the top of the fixing piece 41, and the sealing opening 42 is connected to the inside of the packaging bag 6.

[0048] The sealing assembly 4 also includes a sealing cap 43, which is connected to the sealing port 42 by threads.

[0049] The sealing assembly 4 also includes a disposable sealing sheet 44. A pull ring 45 is fixedly connected to the top of the disposable sealing sheet 44, and a positioning block 49 is fixedly connected to the bottom of the disposable sealing sheet 44. A pressure relief port 47 is opened at the outer end of the fixing plate 41. The pressure relief port 47 is connected to the inside of the packaging bag 6 and is adapted to the positioning block 49. An abutment ring 46 is fixedly installed at the outer end of the fixing plate 41. A sealing gasket 48 is installed at the bottom of the disposable sealing sheet 44. The sealing gasket 48 and the abutment ring 46 abut against each other to form a seal. The disposable sealing sheet 44 and the fixing plate 41 are connected in one go by hot melt adhesive 410.

[0050] The sealing component 4 in this solution is mainly used for pressure relief and function outlet. The fixing piece 41 is fixed to the top of the outer soft package 1. The sealing port 42 is fixed to the top of the fixing piece 41. The sealing port 42 is connected to the inside of the outer soft package 1. The dairy products in the packaging bag 6 can be poured out through the sealing port 42. The sealing cap 43 is threaded to the outer end of the sealing port 42. The sealing cap 43 is mainly used to seal the sealing port 42.

[0051] Next to the sealing port 42 on the fixing plate 41, there is also a pressure relief port 47. The pressure relief port 47 is also connected to the inside of the outer soft package 1. It is mainly used for pressure relief and air release. A positioning block 49 is fixed at the bottom of the disposable sealing plate 44. The positioning block 49 is adapted to the pressure relief port 47. By inserting the positioning block 49 into the inside of the pressure relief port 47, the positioning block 49 will be locked on the inside of the pressure relief port 47. This not only allows the disposable sealing plate 44 to be quickly closed after being opened, but also provides a certain degree of fixation, making it convenient for the disposable sealing plate 44 to be opened and then reinstalled.

[0052] A pull ring 45 is fixed to the top of the disposable sealing sheet 44. The pull ring 45 is mainly used to facilitate the pulling up of the disposable sealing sheet 44. A sealing gasket 48 is also provided at the bottom of the disposable sealing sheet 44. The sealing gasket 48 is sleeved around the positioning insert 49. An abutment ring 46 is fixed to the top of the fixing plate 41. When the disposable sealing sheet 44 covers the pressure relief port 47, the abutment ring 46 will abut against the sealing gasket 48 to form a seal. The disposable sealing sheet 44 and the fixing plate 41 are connected by hot melt adhesive 410 to form a one-time fixation. When the disposable sealing sheet 44 is pulled open, it can only be sealed temporarily through the positioning insert 49. The hot melt adhesive 410 is a low temperature hot melt adhesive, such as TUP or EVA.

[0053] Before heating the tear-off assembly 5, the disposable sealing sheet 44 needs to be pulled open using the pull ring 45. At this time, pressure is released through the open pressure relief port 47, which can prevent the inside of the packaging bag 6 from expanding. Since the disposable sealing sheet 44 is connected by low-temperature hot melt adhesive 410, even if the disposable sealing sheet 44 is forgotten to be opened, the hot melt adhesive 410 will melt when the heating temperature is too high. At this time, the internal pressure will create a gap between the disposable sealing sheet 44 and the fixing piece 41, thus providing a safety redundancy design and improving safety.

[0054] Working principle: When dairy products need to be heated, the disposable sealing sheet 44 is first pulled open by the pull ring 45 to open the pressure relief port 47 to release pressure and prevent the inside of the packaging bag 6 from expanding. Then, the tear head 55 is pinched to tear the easy-tear strip 51. Then, the easy-tear strip 51 is pulled in the opposite direction to tear the easy-tear strip 52. The water inside the packaging bag 7 will flow into the bottom of the outer soft package 1 and react with the heating pack 8 to generate heat. The heating operation can be completed by pulling the easy-tear strip 51.

Claims

1. A self-heating dairy product packaging bag, characterized in that, include: Packaging bag one (6) contains packaged dairy products; Packaging bag two (7), for storing water; The outer soft package (1) is used to contain the first packaging bag (6) and the second packaging bag (7), and a heating pack (8) is provided at the bottom of the inner part of the outer soft package (1); The tearing assembly (5) includes an easy-tear strip one (51), an easy-tear strip two (52) and a connecting strip (53), wherein the end of the easy-tear strip one (51) and the beginning of the easy-tear strip two (52) are connected by the connecting strip (53); When the first tear strip (51) is pulled, the second tear strip (52) is torn through the connecting strip (53), and the water stored inside the second packaging bag (7) flows out and reacts with the heating pack (8) to generate heat.

2. A self-heating dairy product packaging bag according to claim 1, characterized in that: The first packaging bag (6) is fixedly installed inside the outer soft bag (1), and a gap is provided between the first packaging bag (6) and the bottom of the outer soft bag (1) to accommodate the heating pack (8). The second packaging bag (7) is fixedly installed inside the top of the outer soft bag (1), and a sealing component (4) is provided on the top of the outer soft bag (1).

3. A self-heating dairy product packaging bag according to claim 1, characterized in that: The top of the outer soft package (1) is fixedly installed with a hanging piece (3) for hanging, and the bottom of the outer soft package (1) is fixedly installed with a bottom support piece (2) for support.

4. A self-heating dairy product packaging bag according to claim 1, characterized in that: The first end of the easy-tear strip (51) is fixedly connected to the first tear head (55), and the second end of the easy-tear strip (52) is fixedly connected to the second tear head (54). The outer soft bag (1) has an easy-tear opening (9) adapted to the easy-tear strip (51) at its outer end. The easy-tear strip (51) is installed inside the easy-tear opening (9). The bottom end of the packaging bag (7) has an easy-tear opening (10) adapted to the easy-tear strip (52). The easy-tear strip (52) is installed inside the easy-tear opening (10).

5. A self-heating dairy product packaging bag according to claim 2, characterized in that: The sealing assembly (4) includes a fixing piece (41), which is fixedly installed on the top of the outer soft bag (1). A sealing opening (42) is fixedly installed on the top of the fixing piece (41), and the sealing opening (42) is connected to the inside of the packaging bag (6).

6. A self-heating dairy product packaging bag according to claim 5, characterized in that: The sealing assembly (4) further includes a sealing cap (43), which is connected to the sealing port (42) by threads.

7. A self-heating dairy product packaging bag according to claim 6, characterized in that: The sealing assembly (4) further includes a disposable sealing sheet (44). A pull ring (45) is fixedly connected to the top of the disposable sealing sheet (44). A positioning block (49) is fixedly connected to the bottom of the disposable sealing sheet (44). A pressure relief port (47) is opened at the outer end of the fixing piece (41). The pressure relief port (47) is connected to the inside of the packaging bag (6). The pressure relief port (47) is adapted to the positioning block (49). An abutment ring (46) is fixedly installed at the outer end of the fixing piece (41). A sealing gasket (48) is installed at the bottom of the disposable sealing sheet (44). The sealing gasket (48) and the abutment ring (46) abut against each other to form a seal. The disposable sealing sheet (44) and the fixing piece (41) are connected in one go by hot melt adhesive (410).

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