Fresh-keeping bag

Abstract

The utility model discloses a freshness protection bag, and relates to the technical field of refrigeration and freezing freshness protection, the freshness protection bag comprises a bag body and an inner cavity bag, and one side of the bag body is provided with a bag opening; the bag body is used for covering the outer surface of food; the inner cavity bag is connected with one side of the bag body and protrudes out of the edge of the bag body; the inner cavity bag is used for covering the inner cavity wall of the food. According to the technical scheme, the inner cavity bag is arranged on one side of the bag body, food is placed into the bag body from the bag opening, the outer surface of the food is covered with the bag body, and the inner cavity bag is turned over and used for covering the inner cavity wall of the food; in the freezing or unfreezing process of the food, the outer surface of the food conducts heat through the outer space of the bag body, meanwhile, the inner cavity wall of the food can conduct heat with the outside through the inner cavity bag, so that the outer surface and the inner cavity of the food are synchronously frozen or unfrozen, and the freezing or unfreezing efficiency of the food is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, freezing and fresh-keeping, in particular to a fresh-keeping bag. Background Art

[0002] As people's living standards continue to improve, their requirements for food are getting higher and higher; in order to extend the shelf life of meat products, using fresh, environmentally friendly and convenient fresh-keeping bags to refrigerate or freeze meat is a common way of handling. Existing fresh-keeping bags for transportation simply wrap the meat and put it in a freezer for freezing; during the freezing process, the meat needs to be heat-conducted from the surface first, resulting in the need to wait for the surface layer to be completely frozen before the inside of the meat can be slowly frozen, and its freezing efficiency is low; and when thawing frozen meat, it needs to be heat-conducted from the surface first, and the need to wait for the surface layer of the meat to be completely thawed before the inside of the meat can be slowly thawed, and its thawing efficiency is low. Utility Model Content

[0003] The main purpose of the utility model is to provide a fresh-keeping bag, aiming to solve the problem of low freezing and thawing efficiency of the existing fresh-keeping bags when used for frozen meat.

[0004] To achieve the above purpose, the fresh-keeping bag proposed by the utility model includes:

[0005] A bag body, one side of which is provided with a bag opening; the bag body is used to cover the outer surface of the food;

[0006] An inner cavity bag, wherein the inner cavity bag is connected to one side of the bag body and protrudes from the edge of the bag body; the inner cavity bag is used to cover the inner cavity wall of the food.

[0007] In one embodiment, a curved portion is provided on a side of the inner cavity bag away from the bag body, and the curved portion is used to fit with the inner cavity wall of the food.

[0008] In one embodiment, the bag opening is arranged on one side of the bag body in the length direction or the width direction, and the inner cavity bag is arranged on the opposite side of the bag body where the bag opening is arranged.

[0009] In one embodiment, the bag body is further provided with a sealing portion, and the sealing portion is provided at the bag opening.

[0010] In one embodiment, the sealing portion further comprises a heat-sealed edge, and the heat-sealed edge is arranged at the edge of the bag opening.

[0011] In one embodiment, the sealing portion further comprises a sealing strip, the sealing strip is arranged on the inner side of the heat-sealed edge, the sealing strip comprises a concave strip and a convex strip, and the concave strip and the convex strip are correspondingly arranged on the inner layers on both sides of the bag body.

[0012] In one embodiment, the bag body is further provided with a handle, and the handle is provided between the sealing strip and the heat-sealed edge; and / or,

[0013] The handle is provided with a strip hole, and the strip hole is extended along the width direction of the bag body.

[0014] In one embodiment, the bag body and the inner cavity bag are an integrated structure.

[0015] In one embodiment, the bag body and the inner cavity bag are both made of a flexible film, wherein the flexible film is a multi-layer structure composed of two or more material layers.

[0016] In one embodiment, the flexible membrane comprises an antibacterial fresh-keeping outer layer, an antibacterial fresh-keeping inner layer arranged on one side of the antibacterial fresh-keeping outer layer, and an adhesive layer arranged between the antibacterial fresh-keeping outer layer and the antibacterial fresh-keeping inner layer.

[0017] The technical solution of the utility model is to arrange an inner cavity bag on one side of a bag body, put food into the bag body from the bag mouth, cover the outer surface of the food with the bag body, and turn over the inner cavity bag to cover the inner cavity wall of the food; during the freezing process of the food, the outer surface of the food is heat-conducted through the outer space of the bag body, and at the same time, the inner cavity wall of the food can be heat-conducted with the outside through the inner cavity bag, so that the outer surface and the inner cavity of the food are frozen synchronously, so that the freezing efficiency of the food is improved; in addition, when the frozen food is thawed, the outer surface of the food is heat-conducted through the outer space of the bag body, and at the same time, the inner cavity wall of the food can be heat-conducted with the outside through the inner cavity bag, so that the outer surface and the inner cavity of the food are thawed synchronously, so that the thawing efficiency of the food is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A structural schematic diagram of an embodiment of a fresh-keeping bag provided by the utility model;

[0020] Figure 2 The utility model is provided with a fresh-keeping bag according to an embodiment of the present invention.

[0021] Description of Figure Numbers:

[0022] 1-bag body; 11-bag opening; 12-sealing part; 13-heat-sealed edge; 14-handle part; 141-strip hole; 2-inner cavity bag; 21-arc-shaped part.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0027] The utility model provides a fresh-keeping bag.

[0028] See also Figure 1 to Figure 2 In one embodiment of the utility model, the fresh-keeping bag includes a bag body 1 and an inner cavity bag 2, and a bag opening 11 is provided on one side of the bag body 1; the bag body 1 is used to cover the outer surface of the food; the inner cavity bag 2 is connected to one side of the bag body 1, and the inner cavity bag 2 protrudes from the edge of the bag body 1; the inner cavity bag 2 is used to cover the inner cavity wall of the food.

[0029] In the above structure, an inner cavity bag 2 is provided on one side of the bag body 1, and food is placed into the bag body 1 from the bag opening 11, the bag body 1 is used to cover the outer surface of the food, and the inner cavity bag 2 is turned over and used to cover the inner cavity wall of the food; during the freezing process of the food, the outer surface of the food is heat-conducted through the outer space of the bag body 1, and at the same time, the inner cavity wall of the food can be heat-conducted with the outside through the inner cavity bag 2, so that the outer surface and the inner cavity of the food are frozen synchronously, so that the freezing efficiency of the food is improved; in addition, when the frozen food is thawed, the outer surface of the food is heat-conducted through the outer space of the bag body 1, and at the same time, the inner cavity wall of the food can be heat-conducted with the outside through the inner cavity bag 2, so that the outer surface and the inner cavity of the food are thawed synchronously, so that the thawing efficiency of the food is improved.

[0030] That is to say, after the added inner cavity bag 2 is turned over, a wrapping effect is provided for the inner cavity of the food, so that the inner cavity of the food can be exposed to the air or liquid in the external space, thereby increasing the heat transfer area of ​​the food, thereby improving the freezing efficiency and the thawing efficiency; the fresh-keeping bag has the advantages of simple structure, easy use, simple freezing and thawing operations, shortening the time required for freezing, and shortening the time required for thawing.

[0031] The food may be an animal such as fish or poultry; the slaughtered animal forms the above-mentioned inner cavity in the abdominal cavity, and the above-mentioned inner cavity is provided with an opening for the inner cavity bag to be inserted, and the inner cavity bag 2 covers the inner cavity wall of the inner cavity.

[0032] In one embodiment, the side of the inner cavity bag 2 away from the bag body 1 is provided with an arc portion 21, and the arc portion 21 is used to fit with the inner cavity wall of the food. The food is provided with an inner cavity, and the inner cavity is provided with an opening, and the curvature of the arc portion 21 fits with the side of the inner cavity wall away from the opening. First, put the food into the bag body 1 from the bag opening 11, with the side of the food provided with the inner cavity facing the side of the bag body 1 provided with the inner cavity bag 2, and insert the inner cavity bag 2 into the inner cavity so that the inner cavity bag 2 covers the inner cavity wall of the food. Exemplarily, the fresh-keeping bag is used for freezing fish, and the inner cavity bag 2 is used to fit with the inner cavity formed in the belly of the fish.

[0033] In one embodiment, the bag opening 11 is arranged on one side in the length direction or width direction of the bag body 1, and the inner cavity bag 2 is arranged on the opposite side of the bag body where the bag opening 11 is arranged. That is, the bag opening 11 and the inner cavity bag 2 are arranged on opposite sides in the width direction of the bag body 1; or the bag opening 11 and the inner cavity bag 2 are arranged on opposite sides in the length direction of the bag body; the bag body 11 is a rectangular transparent structure; wherein, the bag opening 11 is arranged on one side in the length direction of the bag body 1, so as to facilitate the placement of long-shaped food into the fresh-keeping bag; when the strip-shaped food is placed along the length direction of the bag opening 11, and the opening of the inner cavity of the food is arranged on one side, the width of the opening can be made larger, so as to insert the inner cavity bag 2 from the opening into the inner cavity; the inner cavity bag 2 is arranged on one side in the width direction of the bag body 1 to adapt to the setting position and setting width of the opening, so as to achieve the purpose of improving work efficiency.

[0034] In one embodiment, the bag body 1 is further provided with a sealing portion 12, which is provided at the bag opening 11. When food is placed in the fresh-keeping bag, the air in the bag body 1 and the inner cavity bag 2 can be extracted by a vacuum device until the bag body 1 fits the outer surface of the food and the inner cavity bag 2 fits the inner cavity wall of the food, and then the sealing portion 12 is used to vacuum seal the food in the fresh-keeping bag.

[0035] In one embodiment, the sealing portion 12 further includes a heat-sealed edge 13, which is disposed at the edge of the bag opening 11. The heat-sealed edge 13 can improve the sealing effect of the fresh-keeping bag, and is not prone to air leakage, which facilitates the transportation of food.

[0036] In one embodiment, the sealing portion 12 further includes a sealing strip, which is arranged on the inner side of the heat-sealed edge 13. The sealing strip includes a concave strip and a convex strip, which are correspondingly arranged on the inner layers of both sides of the bag body 1. The convex strip can be inserted into the groove of the concave strip to achieve the sealing effect. When the fresh-keeping bag sealed by the heat-sealed edge 13 needs to be opened, the heat-sealed edge 13 can be cut off to reopen the bag opening 11; when the fresh-keeping bag needs to be recycled, the food can be further sealed in the fresh-keeping bag by the provided sealing strip and re-frozen, thereby increasing the reuse rate of the fresh-keeping bag; at the same time, the provided sealing strip can be used to minimize the number of bacteria entering the fresh-keeping bag and extend the preservation time.

[0037] In one embodiment, the bag body 1 is further provided with a handle 14, which is provided between the sealing strip and the heat-sealed edge 13. The provision of the handle 14 facilitates the transportation and transfer of the whole bag of food. When the fresh-keeping bag sealed by the heat-sealed edge 13 needs to be opened, the heat-sealed edge 13 can be cut off; the handle 14 is provided between the sealing strip and the heat-sealed edge 13, which can prevent the handle 14 from being damaged when the heat-sealed edge 13 is opened.

[0038] In one embodiment, the handle 14 is provided with a strip hole 141, and the strip hole 141 is extended along the width direction of the bag body 1. The strip hole 141 is provided to facilitate the user to grasp and transfer the whole bag of food. The user can easily and conveniently lift the whole bag of food by hooking the strip hole 141 with his hand, which saves physical strength and is convenient.

[0039] In addition, a carrying buckle may be provided in the strip-shaped hole 141 , and the carrying buckle may be used to improve the load-bearing capacity of the carrying portion 14 and reduce the probability of the carrying portion 14 being greatly deformed.

[0040] In one embodiment, the bag body 1 and the inner cavity bag 2 are an integrated structure. The bag body 1 and the inner cavity bag 2 are connected, and the bag body 1 and the inner cavity bag 2 are an integrated structure, which can improve the sealing performance of the fresh-keeping bag and facilitate the subsequent vacuum sealing operation.

[0041] In one embodiment, the bag body 1 and the inner cavity bag 2 are both made of a flexible diaphragm, wherein the flexible diaphragm is a multi-layer structure, which is composed of two or more material layers. The flexible diaphragm can be composed of a plastic material layer, a paper material layer, a metal material layer, a fabric material layer, various coatings or plating layers, and other multi-layer material layers. The flexible diaphragm adopts a multi-layer structure so that the flexible diaphragm has excellent performance, can meet and realize a variety of functions, and the material applicability is also more extensive. In other embodiments, the flexible diaphragm adopts a single-layer structure and is made of plastic.

[0042] In one embodiment, the flexible membrane includes an antibacterial fresh-keeping outer layer, an antibacterial fresh-keeping inner layer arranged on one side of the antibacterial fresh-keeping outer layer, and an adhesive layer arranged between the antibacterial fresh-keeping outer layer and the antibacterial fresh-keeping inner layer. The antibacterial fresh-keeping outer layer and the antibacterial fresh-keeping inner layer are tightly combined through the adhesive layer to achieve a double antibacterial effect. Among them, the antibacterial fresh-keeping inner layer can be made of PE (polyethylene) material; the antibacterial fresh-keeping inner layer is used to directly contact the food to achieve the purpose of isolating the food from the air, thereby playing a role in preservation. The antibacterial fresh-keeping outer layer can be made of a hollow silver-loaded fiber layer. In a humid environment, the silver ions inside the hollow fiber will be released to the outside world, which can inhibit the generation of bacteria, thereby achieving the purpose of double preservation. The adhesive layer can be formed by coating with food-grade glue, for example, the food-grade glue can be made of polyurethane glue.

[0043] The technical solution of the utility model is to arrange an inner cavity bag 2 on one side of the bag body 1, put food into the bag body 1 from the bag opening 11, use the bag body 1 to cover the outer surface of the food, and use the inner cavity bag 2 to turn over and cover the inner cavity wall of the food; during the freezing process of the food, the outer surface of the food is heat-conducted through the outer space of the bag body 1, and at the same time, the inner cavity wall of the food can be heat-conducted with the outside through the inner cavity bag 2, so that the outer surface and the inner cavity of the food are frozen synchronously, so that the freezing efficiency of the food is improved; in addition, when the frozen food is thawed, the outer surface of the food is heat-conducted through the outer space of the bag body 1, and at the same time, the inner cavity wall of the food can be heat-conducted with the outside through the inner cavity bag 2, so that the outer surface and the inner cavity of the food are thawed synchronously, so that the thawing efficiency of the food is improved.

[0044] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fresh-keeping bag, characterized in that: include: A bag body, wherein one side of the bag body is provided with a bag opening; The bag body is used to cover the outer surface of the food; An inner cavity bag, the inner cavity bag is connected to one side of the bag body, and the inner cavity bag protrudes from the edge of the bag body; The inner cavity bag is used to cover the inner cavity wall of the food.

2. The fresh-keeping bag according to claim 1, characterized in that: A curved portion is provided on one side of the inner cavity bag away from the bag body, and the curved portion is used to fit with the inner cavity wall of the food.

3. The fresh-keeping bag according to claim 1, characterized in that: The bag opening is arranged on one side of the bag body in any direction of the length direction or the width direction, and the inner cavity bag is arranged on the opposite side of the bag body where the bag opening is arranged.

4. The fresh-keeping bag according to any one of claims 1 to 3, characterized in that: The bag body is also provided with a sealing portion, and the sealing portion is arranged at the bag opening.

5. The fresh-keeping bag according to claim 4, characterized in that: The sealing portion further comprises a heat-sealing edge, and the heat-sealing edge is arranged at the edge of the bag opening.

6. The fresh-keeping bag according to claim 5, characterized in that: The sealing part further comprises a sealing strip, which is arranged on the inner side of the heat-sealed edge, and comprises a concave strip and a convex strip, and the concave strip and the convex strip are correspondingly arranged on the inner layers on both sides of the bag body.

7. The fresh-keeping bag according to claim 6, characterized in that: The bag body is further provided with a handle, and the handle is arranged between the sealing strip and the heat-sealed edge; and / or, The handle is provided with a strip hole, and the strip hole is extended along the width direction of the bag body.

8. The fresh-keeping bag according to any one of claims 1 to 3, characterized in that: The bag body and the inner cavity bag are an integrated structure.

9. The fresh-keeping bag according to any one of claims 1 to 3, characterized in that: The bag body and the inner cavity bag are both made of flexible membrane sheets, wherein the flexible membrane sheets are multi-layer structures, which are composed of two or more material layers.

10. The fresh-keeping bag according to claim 9, characterized in that: The flexible membrane comprises an antibacterial fresh-keeping outer layer, an antibacterial fresh-keeping inner layer arranged on one side of the antibacterial fresh-keeping outer layer, and an adhesive layer arranged between the antibacterial fresh-keeping outer layer and the antibacterial fresh-keeping inner layer.

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