Polymer food packaging bag

Abstract

The utility model relates to the related technical field of packaging bags, in particular to a polymer food packaging bag, which comprises an outer package, an inner cavity is arranged in the outer package, an inner package is fixedly mounted on the inner wall of the inner cavity, a counterweight strip is connected between the bottom wall of the inner package and the inner cavity, and the counterweight strip is fixedly mounted on the inner wall of the inner package. Deformation strips used for limiting the inner package are arranged on the front wall and the rear wall of the inner cavity. The strength of the food package is guaranteed by arranging the double-layer package, the double-layer package can be protected in a layered mode, and after the outer package is independently damaged, the whole food package can continue to be used; the counterweight strip arranged between the inner package and the inner cavity can limit the movement of the inner package, connect the inner package with the outer package, prevent the inner package from shaking randomly and guarantee the stability of the package, meanwhile, the deformation strip on the inner cavity can be adjusted and fixed, limit the movement of products in the package and fix, and the deformation strip is located on the outer package and does not make direct contact with the inner package, so that the deformation strip is not prone to deformation. And the inner package and the food are not damaged while the limitation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to packaging bags, in particular to a polymer food packaging bag. Background Art

[0002] Food packaging bags are used to package food, and there are many types of packaging bags on the market. At present, after the food is added into the packaging bag, the processing personnel will seal the packaging bag. Among them, in order to prevent the packaging bag from leaking, at present, the main method is to directly seal the bag mouth of the packaging bag by heat sealing. In this way, when people eat the food in the packaging bag, they will directly tear the bag mouth of the packaging bag.

[0003] Food is prone to rot and spoil when directly exposed to the air. In order to preserve food, we usually put the food into pre-packaged (packaging bags, cans, etc.), and then vacuum seal or fill it with inert gas (nitrogen, carbon dioxide, etc.), so that the food can be isolated from oxygen and cannot contact with the outside air, thus achieving a certain preservation and preservation purpose. The traditional form is: filling and unloading - vacuum packaging with vacuum sealing, or filling and unloading - nitrogen-filled packaging with inert gas and then sealed; these two packaging forms have different problems: for example, taking the traditional food stinky tofu as an example, the first form will directly flatten the tofu in the bag, so that the shape of the food is completely destroyed, which greatly affects the consumer experience; while the second form can well preserve the shape of the food, but due to the influence of the packaging material (oxygen permeability), the product's freshness-locking and preservation purpose may not be as expected.

[0004] Today's plastic packaging generally has only one independent cavity, with a small amount of items placed in it and average packaging strength. The food inside the cavity is not well fixed, and the product is prone to instability during the food wrapping process. The shaking of items affects transportation and may damage the packaging bag. Utility Model Content

[0005] The purpose of the utility model is to provide a polymer food packaging bag to solve the above problems.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A polymer food packaging bag comprises an outer packaging, wherein an inner cavity is arranged in the outer packaging, an inner packaging is fixedly mounted on the inner wall of the inner cavity, a counterweight bar is connected between the bottom wall of the inner packaging and the inner cavity, and strips for limiting deformation of the inner packaging are arranged on the front and rear walls of the inner cavity.

[0008] Beneficial effects: The strength of food packaging is ensured by setting up a double-layer packaging. The two-layer packaging can provide layered protection, and the whole packaging can continue to be used after the outer packaging is damaged alone; the counterweight bar set between the inner packaging and the inner cavity can limit the movement of the inner packaging, connect the inner packaging and the outer packaging, prevent the inner packaging from shaking at will, and ensure the stability of the packaging. At the same time, the deformation bar on the inner cavity can be adjusted and fixed to limit the movement of the product inside the packaging and fix it. The deformation bar is located on the outer packaging and does not directly contact the inner packaging. While ensuring the restriction, it will not damage the inner packaging and the food in the inner packaging, thereby improving safety.

[0009] Furthermore, a gap is left between the inner package and the bottom wall of the inner cavity, so that the inner package can be deformed to increase space and accommodate packaged foods of different sizes.

[0010] Furthermore, an upper connecting belt is connected to the lower side of the counterweight bar and the inner packaging, and a lower connecting belt is connected between the counterweight bar and the bottom wall of the inner cavity. The inner packaging is connected and fixed by cooperating with the upper and lower connecting belts and the counterweight bar, so that the two are connected and fixed to prevent the inner packaging from shaking at will and affecting the transportation work. Under special needs, one or two of the two can be broken so that the counterweight bar can perform a counterweight effect on the inner packaging or outer packaging according to actual conditions to stabilize the outer packaging or the inner packaging.

[0011] Furthermore, the length of the upper connecting belt is shorter than that of the lower connecting belt, and the upper connecting belt is easier to break than the lower connecting belt, so it is convenient to adjust.

[0012] Furthermore, a gap is left between the upper end of the inner package and the upper opening of the inner cavity to facilitate sealing of the packaging bag.

[0013] Furthermore, an adhesive strip is fixedly connected to the inner wall of the inner cavity on the upper side of the inner package, and a sealing effect is ensured by the adhesive strip.

[0014] Furthermore, a movable groove is provided on the inner wall of the inner cavity, and the deformation strip is located in the movable groove. The deformation strip can move freely when accommodated in the movable groove. At the same time, the outer packaging is a plastic film, which is convenient for cooperating with the deformation strip to perform deformation work, thereby limiting the movement of food inside the inner packaging to achieve a fixing effect, and at the same time it is not easy to damage the inner packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of a side cross-sectional structure of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer packaging of an embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the overall top view of the structure of an embodiment of the utility model;

[0019] Figure 5 for Figure 2 Enlarged structural diagram at A in the middle.

[0020] Figure numerals: 11, outer packaging; 12, inner cavity; 13, adhesive strip; 14, inner packaging; 21, movable groove; 22, deformation strip; 31, counterweight strip; 32, lower connecting strip; 33, upper connecting strip. DETAILED DESCRIPTION

[0021] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0022] See Figures 1 to 5 As shown, a polymer food packaging bag includes an outer packaging 11, which is a direct outer packaging and can be directly contacted. An inner cavity 12 is provided in the outer packaging 11, and an inner packaging 14 is fixedly installed on the inner wall of the inner cavity 12. The upper side of the inner packaging 14 also has an opening. The interior of the inner packaging 14 is used to accommodate the food to be packaged, and the inner packaging 14 is located in the inner cavity 12. The inner cavity 12 is used to accommodate the inner packaging 14. The inner packaging 12 also has a certain gap to facilitate the buffer space for the inner packaging 14. The inner cavity 12 can be inflated with nitrogen to form an airbag to improve the protection effect.

[0023] At the same time, the inner packaging 14 and the outer packaging 11 are made of the same material, both of which are flexible materials. In this embodiment, polymer plastic is selected. During use, it has high strength and strong wrapping properties, and can be repeatedly replaced during the production of finished products. At the same time, the same material can make the inner packaging 14 and the outer packaging 11 more fully connected and have higher connection strength, but the thickness of the outer packaging 11 is greater than that of the inner packaging 14, which prevents the inner packaging 14 and the outer packaging 11 from being damaged at the same time, thereby ensuring safety.

[0024] Among them, Figure 2 As shown, the size of the inner package 14 is smaller than that of the outer package 11, and the upper opening of the inner package 14 is fixed on the inner wall of the inner cavity 12. The outer wall of the inner package 14 serves as the seal of the inner cavity 12 and is connected to the inner wall of the inner cavity 12 to form a sealed environment for convenient inflation.

[0025] The opening on the upper side of the inner packaging 14 is located below the opening of the inner cavity 12. The inner packaging 14 is completely contained in the inner side of the inner cavity 12. The gap on the upper side facilitates the sealing of the inner packaging 14 and the outer packaging 11 respectively to form two sealing openings, thereby improving the food sealing effect. A certain gap is left between the bottom of the inner packaging 14 and the bottom wall of the inner cavity 12 to facilitate the expansion and adjustment of the inner packaging 14. For example, when the food to be packaged is large in size, it is easy to fill the inner packaging 14, which can facilitate the adjustment work.

[0026] Furthermore, the opening of the outer packaging 11 needs to be sealed, and an adhesive strip 13 is fixedly installed on the inner wall of the inner cavity 12. The adhesive strip 13 is a conventional sealing strip. Two adhesive strips 13 are symmetrically arranged, and the two adhesive strips 13 are respectively located on the two side walls of the inner cavity 12, and the two adhesive strips 13 are radially extended, and the two ends of the two adhesive strips 13 are in a connected state, which is convenient for completely closing the inner cavity 12 and improving the sealing effect.

[0027] At the same time, the adhesive strip 13 is located above the inner package 14 and is relatively close to the inner package 14. The two adhesive strips 13 cooperate to seal the opening on the upper side of the outer package 11 to prevent the internal materials from falling out.

[0028] To ensure ease of use and loading, the thickness of the adhesive strip 13 is smaller than the thickness of the inner package 14, so as to reduce the possibility of contact between the adhesive strip 13 and the food to be sealed during loading.

[0029] When the goods are packaged, a counterweight bar 31 is connected between the bottom wall of the inner package 14 and the inner cavity 12. The counterweight bar 31 has a certain weight to ensure that the inner package 14 can sag under the gravity of the counterweight bar 31, thereby ensuring the stability of the inner package 14.

[0030] In this embodiment, the counterweight bar 31 is connected to the inner packaging 14 through the upper connecting bar 33, and the counterweight bar 31 is fixedly connected to the bottom of the inner cavity 12 through the lower connecting bar 32. The upper connecting bar 33 and the lower connecting bar 32 are both thin films. The upper connecting bar 33 and the lower connecting bar 32 can be quickly disconnected and can be adjusted according to needs to achieve the connection between the counterweight bar 31 and the inner packaging 14 and the outer packaging 11, thereby realizing the positioning of the inner packaging 14 or the bottom support of the outer packaging 11.

[0031] Furthermore, the length of the upper connecting strap 33 is smaller than that of the lower connecting strap 32. During use, the inner packaging 14 has a relatively high demand for the counterweight strip 31, and the length of the lower connecting strap 32 needs to be more convenient to disconnect. When the length is longer, the lower connecting strap 32 can be easily disconnected by squeezing from the outside.

[0032] In the actual packaging process, irregular food goods are easy to move around and need to be restricted, but the packaging bag is easily damaged. A movable groove 21 is provided on the inner wall of the inner cavity 12. In the actual production process, the movable groove 21 is a accommodating space formed by a double-layer film. The space is small and convenient to fit. A deformation bar 22 for limiting the inner packaging 14 is provided on the front and rear walls of the inner cavity 12. The deformation bar 22 is located in the movable groove 21. The movable groove 21 and the deformation bar 22 have a high degree of fit, with only a small gap. The deformation bar 22 uses a plastic wire tie, which can be deformed by extrusion to fit and clamp the food.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A polymer food packaging bag, characterized in that: The invention comprises an outer package (11), wherein an inner cavity (12) is provided in the outer package (11), an inner package (14) is fixedly mounted on the inner wall of the inner cavity (12), a counterweight bar (31) is connected between the bottom wall of the inner package (14) and the inner cavity (12), and a deformation bar (22) for limiting the inner package (14) is provided on the front and rear walls of the inner cavity (12).

2. A polymer food packaging bag according to claim 1, characterized in that: A gap is left between the inner package (14) and the bottom wall of the inner cavity (12).

3. A polymer food packaging bag according to claim 1, characterized in that: An upper connecting belt (33) is connected between the counterweight bar (31) and the lower side of the inner package (14), and a lower connecting belt (32) is connected between the counterweight bar (31) and the bottom wall of the inner cavity (12).

4. A polymer food packaging bag according to claim 3, characterized in that: The length of the upper connecting belt (33) is shorter than the length of the lower connecting belt (32).

5. A polymer food packaging bag according to claim 1, characterized in that: A gap is left between the upper end of the inner package (14) and the upper opening of the inner cavity (12).

6. A polymer food packaging bag according to claim 5, characterized in that: An adhesive strip (13) is fixedly connected to the inner wall of the inner cavity (12) on the upper side of the inner package (14).

7. A polymer food packaging bag according to claim 1, characterized in that: An active groove (21) is provided on the inner wall of the inner cavity (12), and the deformation strip (22) is located in the active groove (21).

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