Portable self-heating packaging device

Abstract

The utility model provides a portable self-heating packaging device which comprises a packaging bag and a pull ring, and the pull ring extends from the interior of the outer packaging bag to be connected to the exterior of the outer packaging bag. The outer packaging bag comprises a first layer, a second layer and a third layer which are sequentially arranged in the thickness direction, the first layer is in circulation connection with the third layer, and the first layer and the third layer are both isolated from the second layer and do not circulate; a first heating bag is arranged in the first layer, a second heating bag and a saline bag are arranged in the third layer, liquid saline is stored in the saline bag, the bottom of the saline bag and an outer packaging bag body are connected into a whole, a pull ring opening is formed in the middle of the bottom of the outer packaging bag, and the pull ring opening is connected with a pull ring extending out of the outer packaging bag through a connecting line. The double-way food heating device is simple and reasonable in structure and high in portability, food is heated in a double-way mode, the food heating rate is increased, the food is heated more evenly, the food heating quality and the food taste are improved, and the adaptability and social work benefits of field work and life of eaters are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-heating food devices, in particular to the technical field of self-heating bag packaging; specifically, it relates to a portable self-heating packaging device. Background Art

[0002] Traditional convenience foods need to be soaked in boiling water to be eaten normally and effectively. However, for some special groups, especially for those with outdoor needs, such as outdoor work and activities like field exploration, adventure, tourism, individual soldier reconnaissance in the army, and police officers on duty, if there is no boiling water on site, convenience foods cannot be eaten normally and effectively, and it cannot meet the dining needs of eaters for delicious hot meals in the outdoor work and activity environment.

[0003] Self-heating rice does not require boiling water or fire or electricity when being eaten. The eater only needs to perform a lifting operation, and the salt water and the heating pack will automatically mix and heat up, steaming the rice and dishes, and it can be eaten in 5 - 15 minutes. However, the existing food self-heating packs developed in the current market are large in volume, inconvenient to carry, prone to slipping and having more operation mistakes during the lifting operation, with poor operation convenience, and there is also the problem that the heating object is prone to leakage and contaminate the food.

[0004] Therefore, there is an urgent need to develop a more efficient, convenient, and safe food self-heating device at present, which can not only meet the needs of eaters for convenient and suitable hot meals, but also meet the food safety requirements, so as to solve the problems of difficult dining and poor dining experience in outdoor work, field exploration, adventure, individual soldier reconnaissance and other outdoor work and activities at the present stage. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to design a portable self-heating packaging device, which is small in volume, light in weight, and strong in portability. The device itself is internally provided with a salt water bag for the reaction of the heating pack inside the device, without the need to add water separately. It directly heats the food through the heat generated in the bag body, and can quickly and conveniently heat some food varieties so that eaters can have hot food when dining outdoors; the water flow in the device is uniform, enabling the heating performance of the heating pack to achieve full coverage and maximization. The middle space of the device is stuffed with bagged food, heating the food in two directions, improving the food heating rate, and making the food heated more evenly, thereby improving the food heating quality and food taste, enhancing the experience of eaters, and improving the dining quality and life taste of outdoor work and life.

[0006] The utility model provides a portable self-heating packaging device, including: an outer packaging bag and a pull ring. The outer packaging bag is rectangular in shape, and the pull ring extends from the inside of the outer packaging bag to the outside of the outer packaging bag. The outer packaging bag includes three layers arranged in sequence along the thickness direction: the first layer, the second layer (the middle layer), and the third layer. The upper part of the first layer is connected in communication with the upper part of the third layer, which is conducive to the uniform flow of liquid brine between the third layer and the first layer. The first layer and the third layer are both isolated from the second layer and do not communicate, avoiding the risk of the heating object contaminating food due to leakage.

[0007] Further, openings for placing food bags are provided at the lower edges on both sides of the second layer.

[0008] The first layer and the third layer are both isolated from the second layer and do not communicate. Such a dry-wet separation design plays a role in protecting the taste of the food to be heated in the second layer.

[0009] A first heating pack is arranged inside the first layer, and a second heating pack and a brine bag are arranged inside the third layer. Liquid brine is stored inside the brine bag. The bottom of the brine bag is integrally connected to the bag body of the outer packaging bag. A pull ring opening is provided in the middle of the bottom of the outer packaging bag, and the pull ring opening is connected and extended to the pull ring outside the outer packaging bag through a connecting line. The pull ring opening also serves as a steam outlet for discharging the excess steam in the brine bag.

[0010] The device extends the pull ring to the outside of the outer packaging bag body. The consumer can release the liquid brine by pulling the pull ring. The liquid brine flows through the internal spaces of the third layer and the first layer, enabling the first heating pack and the second heating pack on both sides of the second layer (the middle layer) to react uniformly. The first heating pack and the second heating pack react with water to release heat and heat the water continuously until steam is generated. The heat generated by the steam directly heats the food or ingredients in the food bag or ingredient pack inside the second layer, and the excess steam is discharged from the steam outlet.

[0011] Further, both the first heating pack and the second heating pack are made of non-woven fabric bags, and heat-generating solids are installed inside the non-woven fabric bags.

[0012] The utility model utilizes the principle of heat release by the reaction of a heat-generating solid and brine. The heat-generating solid is packed in a non-woven fabric bag, and the brine is packed in a brine bag. Then, the non-woven fabric bag and the brine bag are fixed in an outer packaging bag. At the same time, a pull ring is placed outside the outer packaging bag. The brine bag is connected to the pull ring through a connecting line. The outer packaging bag serves to fix and store the non-woven fabric bag and the brine bag. The non-woven fabric bag and the brine bag are both fixedly connected to the inside of the outer packaging bag. By hooking the pull ring with a finger and opening the pull ring opening on the brine bag, the operation is convenient and fast, enabling the liquid brine inside the brine bag to contact and react with the heat-generating solid in the non-woven fabric bag, thereby realizing the heating of food.

[0013] Further, graphic texts, product usage instructions, food categories, manufacturer's phone numbers, etc. are printed on the outer surface of the first layer. This facilitates consumers to distinguish products.

[0014] Further, the printing type is an intaglio printing type. The graphic texts on the inner side of the outer surface will not be scratched off, ensuring clear identification.

[0015] The intaglio printing type is a special printing method that uses a reverse-image graphic printing plate to transfer the ink to the inner side of a transparent printing material, presenting a positive-image graphic on the front of the printed object.

[0016] Further, the outer packaging bag, the pull ring, and the brine bag are all made of soft food-grade high-temperature resistant plastics. Using soft food-grade high-temperature resistant plastics has excellent environmental protection performance. The soft plastic packaging is convenient to carry and operate simply. There is no need for a fire-making device. Just pull the pull ring for five minutes, and the heating of the meal can be realized.

[0017] Further, the soft food-grade high-temperature resistant plastic includes any one of polypropylene (PP), polyethylene terephthalate (PET), and polyphenylene sulfide (PPS). The food-grade high-temperature resistant plastic is environmentally friendly, non-toxic, odorless, and pollution-free, and can be in safe contact with food, ensuring food safety and hygiene.

[0018] Further, each layer of the outer packaging bag is bonded by hot pressing. Preferably, two circular or rounded rectangular holes are provided at the lower edge of the brine bag. The lower edge of one side of the second layer and the lower edge of the third layer are hot-pressed and bonded through these two circular or rounded rectangular holes to fix the brine bag; the other side of the second layer and the lower edge of one side of the first layer are hot-pressed to bond both sides of the second layer; the lower edges of both sides of the second layer are not bonded. The non-bonding of the lower edges of both sides of the second layer is to facilitate the setting of the opening for placing the food bag. Preferably, the remaining edges of each of the first layer, the second layer, and the third layer except the above-mentioned edges are bonded by hot pressing. Through the hot pressing bonding with PP hot melting combination, a bonding effect with high strength, long-term stability, resistance to soaking, and resistance to acids and alkalis is achieved.

[0019] Compared with the prior art, the beneficial effects of the portable self-heating packaging device of the utility model are as follows:

[0020] The portable self-heating packaging device provided by the utility model has a simple and reasonable structure, strong integrity, small size, light weight and strong portability. A saline bag is built in the device for the reaction of the heating pack inside the device, and no additional water is required. The heat generated in the bag directly heats the food, enabling some food varieties to be heated quickly and conveniently so that the eater can have hot food when dining outdoors. The water flow is made uniform through the spaces in the upper parts of the first layer and the third layer, enabling the heating performance of the heating pack to achieve full coverage and maximization. The bagged food is stuffed into the middle space of the device, and the food is heated bidirectionally, improving the food temperature rising rate and making the food heated more evenly, thus improving the food heating quality and food taste, enhancing the dining experience of the eater, and improving the dining quality and life taste of outdoor work and life. It effectively solves the problem that it is impossible to meet the demand for convenient hot meals beneficial to the body in the wild at the present stage, improves the adaptability of the eater to outdoor work and life, and enhances the social work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0022] Figure 1 is a front view of the structure of the portable self-heating packaging device according to an embodiment of the utility model;

[0023] Figure 2 is a side view sectional view of the structure of the portable self-heating packaging device according to an embodiment of the utility model;

[0024] Figure 3 is a sectional view of the layered structure of the outer packaging bag according to an embodiment of the utility model;

[0025] Figure 4 is a structural view of the saline bag according to an embodiment of the utility model.

[0026] The reference numerals in the drawings are represented as:

[0027] 1. Outer packaging bag, 11. First layer, 12. Second layer, 13. Third layer, 2. Pull ring, 3. Connecting line, 6. Saline bag, 7. Pull ring opening, 8. First heating pack, 9. Second heating pack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inner" and "outer" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings:

[0032] The embodiments of the present invention provide a portable self-heating packaging device. Referring to Figure 1 、 2 as shown, it includes: an outer packaging bag 1 and a pull ring 2. The outer packaging bag 1 is rectangular in shape, and the pull ring 2 extends from the inside of the outer packaging bag 1 to the outside of the outer packaging bag 1. The outer packaging bag 1 includes three layers arranged in sequence along the thickness direction (referring to Figure 3 as shown): a first layer 11, a second layer 12, and a third layer 13. The upper part of the first layer 11 is in fluid connection with the upper part of the third layer 13, which is beneficial to the uniform flow of liquid brine between the third layer 13 and the first layer 11;

[0033] Both the first layer 11 and the third layer 13 are isolated from the second layer 12 and do not communicate. This avoids the risk of the heating object contaminating the food due to leakage.

[0034] Inside the first layer 11, a first heating pack 8 is provided. Inside the third layer 13, a second heating pack 9 and a brine bag 6 are provided. Liquid brine is stored inside the brine bag 6. The bottom of the brine bag 6 is integrally connected to the bag body of the outer packaging bag 1. In the middle of the top of the outer packaging bag 1, a pull-ring opening 7 is provided. The connecting line 3 passes through the pull-ring opening 7 and extends to the pull ring 2 outside the outer packaging bag 1.

[0035] Openings for placing food bags are provided at the lower edges on both sides of the second layer. Food or ingredients to be heated are placed inside the food bags. The first layer 11 and the third layer 13 are both isolated from the second layer 12 and do not communicate. Such a dry-wet separation design plays a role in protecting the taste of the food to be heated in the second layer 12.

[0036] In this device, the pull ring 2 extends to the outside of the outer packaging bag 1. The user can release the liquid brine by pulling the pull ring 2. The liquid brine flows through the internal spaces of the third layer 13 and the first layer 11, enabling the first heating pack 8 and the second heating pack 9 on both sides of the second layer 12 (the middle layer) to react evenly. When the first heating pack 8 and the second heating pack 9 come into contact with water, they react to release heat and heat the water continuously until steam is generated. The heat generated by the steam directly heats the food or ingredients in the food bag or the ingredient bag, and the excess steam is discharged from the steam outlet.

[0037] The outer packaging bag 1, the pull ring 2, and the brine bag 6 are all made of soft food-grade heat-resistant plastic polypropylene PP. Using soft food-grade heat-resistant plastic has excellent environmental protection performance, can be in safe contact with food, is convenient to carry, has a simple operation, does not require a fire-making device, and only needs to pull the pull ring 2 for five minutes to achieve meal heating. The food-grade heat-resistant plastic is environmentally friendly, non-toxic, odorless, and pollution-free, ensuring food safety and hygiene.

[0038] In this embodiment, two rounded rectangular holes are provided at the lower edge of the brine bag 6 (see Figure 4 shown). The lower edge on one side of the second layer 12 and the lower edge of the third layer 13 are heat-pressed and bonded through these two rounded rectangular holes to fix the brine bag 6. The other side of the lower edge of the second layer 12 and the lower edge on one side of the first layer 11 are heat-pressed and bonded. The lower edges on both sides of the second layer 12 are not bonded to facilitate the opening for placing the food bag. The remaining edges of each of the first layer 11, the second layer 12, and the third layer 13 except for the above-mentioned edges are heat-pressed and bonded (see Figure 2 shown). Through heat-pressing and bonding by PP hot melting combination, a bonding effect with high strength, long-term stability, resistance to soaking, and resistance to acids and alkalis is achieved.

[0039] Both the first heating pack 8 and the second heating pack 9 are made of non-woven fabric bags, and heat-generating solids are installed inside the non-woven fabric bags.

[0040] This embodiment uses the principle of heat release through the reaction of exothermic solid and salt water. The exothermic solid is placed in a non-woven bag, the salt water is placed in a salt water bag 6, and then the salt water bag 6 is fixed in an outer packaging bag 1. At the same time, the pull ring 2 is placed outside the outer packaging bag 1. The salt water bag 6 is connected to the pull ring 2 through a connecting line 3. The outer packaging bag 1 plays the role of fixing and storing the salt water bag 6, and the non-woven bag is directly placed inside the outer packaging bag 1. The pull ring 2 is hooked by fingers to open the pull ring opening 7 on the salt water bag 6. The operation is convenient and quick, so that the liquid salt water inside the salt water bag 6 contacts and reacts with the exothermic solid in the non-woven bag, and the food can be heated. The pull ring opening 7 also serves as a steam outlet, which is used to discharge the excess steam in the salt water bag 6.

[0041] The outer surfaces of the first layer 11 and the third layer 13 are printed with graphic characters, product instructions, food categories, manufacturer's telephone number, etc., so that consumers can distinguish products easily. In this embodiment, the printing type is an inner printing type, and the graphic characters on the inner side of the outer surface will not be scraped off, ensuring that consumers can clearly identify them.

[0042] In actual use of the device, preferably, the food is placed upright for the first 5-10 minutes after it starts to heat up, and then placed flat for the next 5-10 minutes, and then consumed after it is fully heated.

[0043] The portable self-heating packaging device provided by the present embodiment has a simple and reasonable structure, strong integrity, small size, light weight and strong portability. The device itself has a built-in saline bag for the heating bag reaction inside the device, and no water is needed. The heat generated in the bag is used to directly heat the food, and some food varieties can be quickly and conveniently heated to facilitate diners to eat hot food outdoors; the water flow in the device is uniform, so that the heating performance of the heating bag is fully covered and maximized, and the bagged food is stuffed into the middle space of the device to heat the food in both directions, thereby increasing the food heating rate and making the food heated more evenly, thereby improving the food heating quality and food taste, improving the diners' dining experience, and improving the dining quality and life taste of outdoor work and life; it effectively solves the problem of not being able to meet the demand for convenient hot meals that are good for the body in the wild at this stage, improves the adaptability of diners to work and life in the wild, and improves the social work benefits.

[0044] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

[0045] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model; for those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A portable self-heating packaging device, characterized in that: include: An outer packaging bag and a pull ring, wherein the outer packaging bag is in a rectangular shape, and the pull ring extends from the inside of the outer packaging bag to the outside of the outer packaging bag; the outer packaging bag comprises three layers arranged in sequence along the thickness direction: a first layer, a second layer, and a third layer, wherein the upper part of the first layer is connected to the upper part of the third layer in a flow-connected manner, and the first layer and the third layer are isolated from the second layer and cannot flow in a flow-connected manner; The first layer is provided with a first heating pack inside, the third layer is provided with a second heating pack and a saline bag inside, and the saline bag is provided with liquid saline inside; the bottom of the saline bag is connected to the bag body of the outer packaging bag as a whole, and a pull ring opening is provided in the middle of the bottom of the outer packaging bag, and the pull ring opening is connected to the pull ring extending to the outside of the outer packaging bag through a connecting line.

2. The portable self-heating packaging device according to claim 1, characterized in that: The first heating pack and the second heating pack are both made of non-woven fabric, and a heat-generating solid is installed inside the non-woven fabric.

3. The portable self-heating packaging device according to claim 1, characterized in that: The lower edges of both sides of the second layer are provided with openings for placing food bags.

4. The portable self-heating packaging device according to claim 1, characterized in that: The outer surface of the first layer is printed with graphic characters, product instructions, food category, and manufacturer's telephone number.

5. The portable self-heating packaging device according to claim 4, characterized in that: The printing type is an inner printing type, and the graphics and characters on the inner side of the outer surface will not be scraped off.

6. The portable self-heating packaging device according to claim 1, characterized in that: The outer packaging bag, pull ring and saline bag are all made of soft food-grade high-temperature resistant plastic.

7. The portable self-heating packaging device according to claim 6, characterized in that: The soft food-grade high temperature resistant plastic includes any one of polypropylene PP, polyester PET, and polyphenylene sulfide PPS.

8. The portable self-heating packaging device according to claim 1, characterized in that: Each layer of the outer packaging bag is bonded by heat pressing.

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