Novel vacuum heat preservation food bag

Abstract

The utility model relates to a novel vacuum heat preservation food bag, which belongs to the technical field of food bags and comprises a heat preservation bag, openings are arranged at the top of the heat preservation bag, and a sealing structure is arranged between the openings on two sides. The food packaging bag has the advantages that the sealing structure is arranged, the packaging bag is opened, food is taken out and put in, openings in the two sides are squeezed, so that the clamping columns are accurately embedded into the cylindrical grooves for sealing, meanwhile, the first embedding strip and the second embedding strip are embedded and clamped, double clamping sealing is adopted, the sealing effect is enhanced, gaps are not prone to occurring at the openings, and the sealing effect is improved. Air, external dust and the like are prevented from entering the heat preservation bag, food can be better stored, food deterioration is prevented, the filling strips and the bonding strips are adopted, the attaching effect of openings in the two sides of the heat preservation bag is better, meanwhile, the cooling structure effectively inhibits microorganism breeding, and the heat preservation effect is improved. The cold insulation effect and the high sealing performance of the heat preservation bag on food can be improved, and freshness and nutrition of the food are maintained.

Description

Technical Field

[0001] This utility model relates to the field of food bag technology, specifically a novel vacuum insulated food bag. Background Technology

[0002] Vacuum packaging refers to a packaging method where the product is placed in an airtight container, the air inside is removed, and a predetermined vacuum level is achieved in the sealed container. Vacuum bags, also known as reduced-pressure packaging, completely remove the air from the packaging container and seal it, maintaining a high degree of decompression inside the bag. The scarcity of air creates a low-oxygen effect, depriving microorganisms of the conditions for survival, thus ensuring the freshness of fruits and preventing disease and spoilage. Applications include vacuum packaging within plastic bags, aluminum foil packaging, and glass container packaging. Packaging materials can be selected based on the type of product. Because fruits are fresh foods and still undergo respiration, severe oxygen deficiency can cause physiological damage; therefore, vacuum packaging is less commonly used for fruits.

[0003] Existing vacuum-insulated food bags have the following drawbacks: during use, the food bags need to be vacuumed, which places very high demands on the sealing of the opening. If the sealing effect at the opening is not good, air can easily enter the food bag and expand, resulting in poor food preservation, low preservation efficiency, and easy entry of external dust into the food bag, which can easily lead to food spoilage and damage. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a novel vacuum-insulated food bag with a sealing structure. This addresses the issue that vacuum-insulated food bags require vacuuming during use, necessitating a high degree of sealing at the opening. Poor sealing at the opening allows air to enter and expand inside the bag, resulting in poor food preservation, low preservation efficiency, and easy entry of dust, leading to spoilage and damage.

[0005] The technical solution of this utility model is: a novel vacuum insulated food bag, including an insulated bag, an opening at the top of the insulated bag, a sealing structure between the openings on both sides, and a cooling structure on the outside of the insulated bag.

[0006] The sealing structure includes a sealing membrane, a filler strip, an adhesive strip, a snap-fit ​​post, a first interlocking strip, and a second interlocking strip. The adhesive strip and filler strip are both disposed at the bottom of the sealing membrane. The adhesive strip is embedded in the top of the opening and adheres to it. The filler strip is embedded inside the gaps of the two side openings. The sealing membrane is disposed at the top of the two side openings. A cylindrical groove is formed on one side wall of each opening. The second interlocking strip is fixedly installed inside the cylindrical groove. The snap-fit ​​post is disposed outside the other side wall of the opening. The first interlocking strip is disposed outside the snap-fit ​​post, and the snap-fit ​​post is snapped into the inside of the cylindrical groove. Multiple sets of the first and second interlocking strips are provided, and the first and second interlocking strips are mutually embedded and snapped together.

[0007] Furthermore, a one-way valve is provided inside one side wall of the heat-insulating bag, and a threaded cap is provided on one side of the one-way valve.

[0008] Furthermore, the insulated bag includes a polyethylene layer, a heat insulation layer, a nylon layer, an insulating layer, and a food preservation inner film. The heat insulation layer is disposed inside the polyethylene layer, the nylon layer is disposed inside the heat insulation layer, the insulating layer is disposed inside the nylon layer, and the food preservation inner film is adhered to the inside of the insulating layer.

[0009] Furthermore, the cooling structure includes an ice pack, a sealing plug, a handle, a foil layer, and a protective layer, with the ice pack positioned on the outside of the insulated bag.

[0010] Furthermore, the foil layer is disposed on the outside of the ice pack, the protective layer is adhered to the outside of the foil layer, and the outer wall of the protective layer is provided with a handle.

[0011] Furthermore, the top of the ice pack is provided with a sealing plug, and the inside of the ice pack is filled with water.

[0012] This utility model provides a novel vacuum-insulated food bag with the following improvements and advantages compared to the prior art:

[0013] With its sealing structure, the packaging bag is opened, food is placed inside, and the openings on both sides are squeezed to allow the snap-fit ​​posts to precisely embed into the cylindrical grooves for a seal. Simultaneously, the first and second interlocking strips interlock with each other, employing a double-seal design to enhance the sealing effect and prevent gaps from forming at the openings. This prevents air and external dust from entering the insulated bag, thus better preserving the food and preventing spoilage. The use of filling and adhesive strips ensures a better fit between the openings on both sides of the insulated bag. At the same time, the cooling structure effectively inhibits microbial growth, improving the insulated bag's cold retention effect and high airtightness, maintaining the freshness and nutrition of the food. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a three-dimensional schematic diagram of the installation of the interlocking strip of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a front view schematic diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the internal structure of the food preservation bag of this utility model;

[0019] Figure 5 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0020] Explanation of reference numerals in the attached diagram: 1. Insulated bag; 2. Opening; 3. Sealing film; 4. Filler strip; 5. Adhesive strip; 6. One-way valve; 7. Threaded cap; 8. Handle; 9. Sealing plug; 10. Protective layer; 11. Foil layer; 12. Ice pack; 13. Snap-fit ​​post; 14. Interlocking strip one; 15. Interlocking strip two; 16. Cylindrical groove; 101. Polyethylene layer; 102. Insulation layer; 103. Nylon layer; 104. Insulation layer; 105. Inner preservation film. Detailed Implementation

[0021] The following will be combined with the appendix Figures 1 to 5 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] This utility model provides a novel vacuum-insulated food bag through improvements, such as... Figure 1-5 As shown in the figure, the device includes an insulated bag 1, an opening 2 at the top of the insulated bag 1, a sealing structure between the two openings 2, and a cooling structure on the outside of the insulated bag 1.

[0023] The sealing structure includes a sealing membrane 3, a filler strip 4, an adhesive strip 5, a snap-fit ​​post 13, a first interlocking strip 14, and a second interlocking strip 15. The adhesive strip 5 and the filler strip 4 are both located at the bottom of the sealing membrane 3. The adhesive strip 5 is embedded in the top of the opening 2 and adheres to it. The filler strip 4 is embedded inside the gaps of the two openings 2. The sealing membrane 3 is located at the top of the two openings 2. A cylindrical groove 16 is formed on one side wall of the opening 2. The second interlocking strip 15 is fixedly installed inside the cylindrical groove 16. The snap-fit ​​post 13 is located outside the other side wall of the opening 2. The first interlocking strip 14 is located outside the snap-fit ​​post 13, and the snap-fit ​​post 13 is snapped into the inside of the cylindrical groove 16. Multiple sets of the first interlocking strip 14 and the second interlocking strip 15 are provided. The two strips 15 are interlocking and interlocking. With a sealing structure, when the packaging bag is opened, the food is taken out and placed inside. The openings 2 on both sides are squeezed, so that the interlocking post 13 is precisely embedded in the cylindrical groove 16 for sealing. At the same time, the interlocking strips 14 and 15 are interlocking and interlocking, using double interlocking sealing to enhance the sealing effect and prevent gaps from appearing at the openings 2. This prevents air and external dust from entering the insulated bag 1, thus helping to better preserve the food and prevent spoilage. The use of filling strip 4 and adhesive strip 5 makes the sealing effect of the openings 2 on both sides of the insulated bag 1 better. At the same time, the cooling structure effectively inhibits the growth of microorganisms, so that the insulated bag 1 can improve the cold preservation effect and high sealing performance of the food, maintaining the freshness and nutrition of the food.

[0024] A one-way valve 6 is provided inside one side wall of the heat-insulating bag 1, and a threaded cap 7 is provided on one side of the one-way valve 6. When in use, the one-way valve 6 can be connected to an external air pump, which can then perform vacuum treatment on the heat-insulating bag 1, and the threaded cap 7 is used to seal the one-way valve 6.

[0025] The insulated bag 1 includes a polyethylene layer 101, an insulation layer 102, a nylon layer 103, an insulating layer 104, and a food preservation inner film 105. The insulation layer 102 is disposed inside the polyethylene layer 101, the nylon layer 103 is disposed inside the insulation layer 102, the insulating layer 104 is disposed inside the nylon layer 103, and the food preservation inner film 105 is adhered to the inside of the insulating layer 104. The polyethylene layer 101 is used to improve the flexibility of the insulated bag 1, and also to provide moisture protection and low-temperature resistance. The insulating layer 104 is made of PET composite material, which has high barrier properties and prevents oxygen penetration. The insulation layer 102 is used to prevent the conduction of external high temperatures. The nylon layer 103 has puncture resistance and abrasion resistance, which helps to improve the protective strength of the insulated bag 1. The food preservation inner film 105 is made of a high-cleanliness plastic film, and the inner wall is coated with an antibacterial coating to prevent bacterial growth.

[0026] The cooling structure includes an ice pack 12, a sealing plug 9, a handle 8, a foil layer 11, and a protective layer 10. The ice pack 12 is placed on the outside of the insulated bag 1, the foil layer 11 is placed on the outside of the ice pack 12, and the protective layer 10 is adhered to the outside of the foil layer 11. The outer wall of the protective layer 10 is provided with a handle 8, and the top of the ice pack 12 is provided with a sealing plug 9. The inside of the ice pack 12 is filled with water. The handle 8 facilitates carrying the insulated bag 1, and the sealing plug 9 can prevent the ice pack 12 from leaking water. After the food is vacuum-sealed, the food bag can be placed in a freezer for cooling, which facilitates the low-temperature transportation of the food bag and is beneficial for the preservation and storage of special foods. The foil layer 11 can improve the heat preservation effect, and the protective layer 10 can be made of rubber material for wear resistance.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel vacuum-insulated food bag, comprising an insulated bag (1), characterized in that: The top of the heat-insulating bag (1) is provided with an opening (2), and a sealing structure is provided between the openings (2) on both sides. A cooling structure is provided on the outside of the heat-insulating bag (1). The sealing structure includes a sealing membrane (3), a filler strip (4), an adhesive strip (5), a snap-fit ​​post (13), a first interlocking strip (14), and a second interlocking strip (15). The adhesive strip (5) and the filler strip (4) are both located at the bottom of the sealing membrane (3). The adhesive strip (5) is embedded in the top of the opening (2) and is bonded to the opening (2). The filler strip (4) is embedded inside the gaps of the two side openings (2). The sealing membrane (3) is located at the top of the two side openings (2). 2) A cylindrical groove (16) is opened on one side wall. The second interlocking strip (15) is fixedly installed inside the cylindrical groove (16). The snap-fit ​​post (13) is set outside the other side wall of the opening (2). An interlocking strip (14) is set outside the snap-fit ​​post (13). The snap-fit ​​post (13) is snap-fitted inside the cylindrical groove (16). Multiple sets of interlocking strips (14) and interlocking strips (15) are provided. The interlocking strips (14) and interlocking strips (15) are interlocked with each other.

2. The novel vacuum-insulated food bag as described in claim 1, characterized in that: A one-way valve (6) is provided inside one side wall of the heat-insulating bag (1), and a threaded cap (7) is provided on one side of the one-way valve (6).

3. The novel vacuum-insulated food bag as described in claim 1, characterized in that: The insulated bag (1) includes a polyethylene layer (101), a heat insulation layer (102), a nylon layer (103), an insulating layer (104), and a food preservation inner film (105). The heat insulation layer (102) is disposed inside the polyethylene layer (101), the nylon layer (103) is disposed inside the heat insulation layer (102), the insulating layer (104) is disposed inside the nylon layer (103), and the food preservation inner film (105) is attached to the inside of the insulating layer (104).

4. The novel vacuum-insulated food bag as described in claim 1, characterized in that: The cooling structure includes an ice pack (12), a sealing plug (9), a handle (8), a foil layer (11), and a protective layer (10), with the ice pack (12) placed on the outside of the insulated bag (1).

5. The novel vacuum-insulated food bag as described in claim 4, characterized in that: The foil layer (11) is disposed on the outside of the ice pack (12), the protective layer (10) is adhered to the outside of the foil layer (11), and the outer wall of the protective layer (10) is provided with a handle (8).

6. The novel vacuum-insulated food bag as described in claim 4, characterized in that: The top of the ice pack (12) is provided with a sealing plug (9), and the inside of the ice pack (12) is provided with water.

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