Food-grade safety valve port packaging bag

Abstract

The utility model provides a food-grade safety valve port packaging bag, which relates to the technical field of film tension adjustment, and comprises a bag body and a sealing strip arranged on the inner side of the bag body, and further comprises a corner strip arranged on the inner corner of the bag body, a paper surface layer covering two sides of the bag body, a plastic film covering the outer side of the paper surface layer, and a drying seat arranged on the bag body in a penetrating manner, the anti-explosion valve is arranged in the middle of the drying seat, the corner strip comprises three silica gel sheets with the ends connected, each silica gel sheet is connected with the bag body, the number of the paper face layers is two, the thickness of the paper face layers is smaller than that of the bag body, and the thickness of the plastic film is smaller than that of the bag body. According to the food-grade packaging bag, safety valve ports on the packaging bag can be increased by adding the drying seat and the anti-explosion valve on the food-grade packaging bag, the hardness and the toughness of the bag body can be increased through the corner strips, the paper surface layer and the plastic film layer, the phenomena of air leakage and bag explosion of the packaging bag are improved, the quality of stored food is improved, and the transportation cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a food-grade safety valve packaging bag. Background Art

[0002] Safety valves are special valves whose opening and closing parts are in a normally closed state under the action of external forces. When the medium pressure in the equipment or pipeline exceeds the specified value, the medium is discharged to the outside of the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value. Food-grade packaging bags are packaging bags that are safe for human consumption or can directly contact food, and they play an important role in food packaging.

[0003] When food-grade packaging bags are used for food storage, they will be packed in packaging bags, and then a heating sealing machine or ultrasonic sealing machine will be used to seal the open end of the packaging bag to complete the packaging and storage of the food, and then put it into the market for sale.

[0004] For example, a Chinese patent with publication number CN219602017U proposes a food-grade packaging bag, including: a bag body, a tear notch and a label paper, a tear notch is opened on the upper left side of the bag body, a connecting cylinder is fixed in the middle of the lower surface of the bag body, a storage cylinder is arranged below the bag body, a rotating cylinder is connected in the middle of the upper surface of the storage cylinder, an outlet is opened through the right side of the storage cylinder, a sealing film is glued in the middle of the outlet, a label paper is glued in the middle of the lower front side of the bag body, and a batching paper is glued in the middle of the lower back side of the bag body. Compared with the prior art, the utility model has the following beneficial effects: by arranging the storage cylinder, the outlet and the sealing film, the ingredients and accessories of edible food can be placed separately so that they are not mixed with the food, thereby improving the hygiene level, and by arranging the rotating cylinder and the connecting cylinder, the storage cylinder can be easily disassembled and assembled.

[0005] Although the above-mentioned food-grade packaging bag can be placed and used alone, the food packaging bag does not have an explosion-proof function. When the packaging bag is in use, a certain volume of air will be contained in the food-grade packaging bag. During transportation, the packaging bag will leak or explode, affecting the quality of the stored food and causing losses in food transportation. Therefore, the present application provides a food-grade safety valve packaging bag to meet the needs. Utility Model Content

[0006] The utility model provides a food-grade safety valve packaging bag, which solves the problem that the food-grade packaging bag proposed in the above background technology has no explosion-proof function and is prone to air leakage or explosion, and increases the safety valve on the food-grade packaging bag to improve the air leakage and explosion of the packaging bag.

[0007] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0008] The embodiment of the utility model provides a food-grade safety valve packaging bag, comprising a bag body and a sealing strip arranged inside the bag body, and further comprising:

[0009] Corner strips are arranged at the inner corners of the bag body and are used for leak-proof treatment of the corners of the packaging bag;

[0010] The paper surface layer covers both sides of the bag body and is used to increase the hardness of the packaging bag;

[0011] A plastic film, covering the outside of the paper surface layer, is used for waterproofing the paper surface layer;

[0012] A drying seat is provided on the bag body and is used for drying the inside of the packaging bag;

[0013] The explosion-proof valve is arranged in the middle of the drying seat and is used for explosion-proof treatment of packaging bags.

[0014] Furthermore, the corner strip includes three silicone sheets connected at the ends, and each of the silicone sheets is connected to the bag body.

[0015] Furthermore, the number of the paper surface layers is two, and the thickness of the paper surface layers is lower than the thickness of the bag body.

[0016] Furthermore, the thickness of the plastic film is lower than the thickness of the bag body, and the plastic film is made of food-grade plastic.

[0017] Furthermore, the drying seat includes a through pipe penetrating the bag body and a dehumidification net arranged on the through pipe.

[0018] Furthermore, the dehumidification net is made of absorbent cotton.

[0019] Furthermore, the explosion-proof valve includes a connecting sleeve sleeved on the drying seat and a spherical cover arranged in the middle of the connecting sleeve.

[0020] Furthermore, an explosion-proof groove is provided through the middle of the spherical cover, and the spherical cover is made of food-grade plastic.

[0021] The above solution of the utility model includes at least the following beneficial effects:

[0022] 1. The utility model increases the overall flexibility and wear resistance of the packaging bag by setting the corner strips, paper surface layer and plastic film, avoids the wear of the edges and corners of the packaging bag, and increases the thickness of the packaging bag by covering the paper surface layer and plastic film on the bag body surface, increases the hardness and toughness of the bag surface, avoids the damage of the bag surface, improves the air leakage of the packaging bag, and improves the quality of the packaging bag;

[0023] 2. The utility model, by providing a drying seat and an explosion-proof valve, is convenient for adding an explosion-proof structure to the packaging bag and improving the sealing of the packaging bag. By using a spherical cover on the explosion-proof valve, the high air pressure in the packaging bag can be reduced to avoid the explosion of the packaging bag. In addition, by using a dehumidification net, the through-tube can be dried and protected, thereby improving the use effect of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional view of the structure in the utility model;

[0025] Figure 2 This is a three-dimensional view of the structure of the bag body and the drying seat in the utility model;

[0026] Figure 3 It is a partial structural sectional view of the drying seat and the explosion-proof valve in the utility model;

[0027] Figure 4 This is a three-dimensional view of the structure of the bag body and the corner strip in the utility model;

[0028] Figure 5 It is a partial structural schematic diagram of the bag body in the utility model.

[0029] Description of reference numerals:

[0030] 1. Bag body; sealing strip; 3. Corner strip; 301. Silicone sheet; 4. Paper surface layer; 5. Plastic film; 6. Drying seat; 601. Through pipe; 602. Dehumidification net; 7. Explosion-proof valve; 701. Connecting sleeve; 702. Spherical cover; 703. Explosion-proof groove; 8. Protective pad. DETAILED DESCRIPTION

[0031] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0032] like Figures 1 to 5 As shown, an embodiment of the utility model provides a food-grade safety valve port packaging bag, comprising a bag body 1 and a sealing strip 2 arranged inside the bag body 1, and further comprising:

[0033] Corner strips 3 are arranged at the inner corners of the bag body 1 and are used for leak-proof treatment of the corners of the packaging bag;

[0034] The paper surface layer 4 covers both sides of the bag body 1 and is used to increase the hardness of the packaging bag;

[0035] A plastic film 5, covering the outer side of the paper surface layer 4, is used for waterproofing the paper surface layer 4;

[0036] The thickness of the plastic film 5 is lower than that of the bag body 1 . The plastic film 5 is made of food-grade plastic. The use of the food-grade plastic of the plastic film 5 can facilitate the contact between its surface and the items contained in the packaging bag to avoid contamination of the items. The use of the plastic film 5 can increase the waterproofness of the surface of the bag body 1 and increase the flexibility of the bag body 1.

[0037] A drying seat 6 is provided on the bag body 1 and is used for drying the inside of the packaging bag;

[0038] The drying seat 6 includes a through tube 601 penetrating the bag body 1 and a dehumidification net 602 arranged on the through tube 601. One end of the drying seat 6 is located inside the packaging bag. Through the through tube 601 in the drying seat 6 and the bag body 1, the packaging bag can be connected to the external environment of the packaging bag through the through tube 601. Through the arrangement of the explosion-proof valve 7 on the drying seat 6, the explosion phenomenon of the packaging bag caused by the high air pressure inside the packaging bag is improved. The use of the dehumidification net 602 in the drying seat 6 is used for the drying process between the explosion-proof valve 7 and the packaging bag.

[0039] The explosion-proof valve 7 is arranged in the middle of the drying seat 6 and is used for explosion-proof treatment of the packaging bag.

[0040] Furthermore, the bag body 1 and the sealing strip 2 in the embodiment of the utility model are the existing structures of the packaging bag. The interior of the bag body 1 is used for loading materials. By fitting the two sides of the bag opening, the two opposite sealing strips 2 on the inner side of the bag body 1 are clamped, so that the sealing strip 2 seals the bag opening of the packaging bag. By setting the corner strips 3 at the corners of the packaging bag, the wear of the corners of the packaging bag can be improved and air leakage of the packaging bag can be avoided. By using the explosion-proof valve 7 and the drying seat 6, the explosion of the packaging bag can be avoided.

[0041] Furthermore, in this embodiment, according to the bag body 1 structure of the existing packaging bag, the corners 3 are all arranged at the edge connection ends of the bag body 1, and the corner strips 3 include three silicone sheets 301 connected at the ends, and each silicone sheet 301 is connected to the bag body 1. The flexibility of the silicone sheet 301 can increase the elasticity of the corners of the packaging bag, perform wear-resistant treatment on the packaging bag, and avoid air leakage at the corners of the packaging bag.

[0042] Further, such as Figures 1 to 5 As shown, there are two paper surface layers 4, and the thickness of the paper surface layer 4 is lower than the thickness of the bag body 1. By using the paper surface layer 4, the hardness of the bag surface can be increased to avoid damage to the bag surface and avoid air leakage of the bag.

[0043] Furthermore, the dehumidification net 602 is made of absorbent cotton, and the water absorption property of the absorbent cotton can prevent moisture and dehumidify the inside of the packaging bag.

[0044] Furthermore, the explosion-proof valve 7 includes a connecting sleeve 701 mounted on the drying seat 6 and a spherical cover 702 arranged in the middle of the connecting sleeve 701. By using the explosion-proof valve 7, an explosion-proof structure can be added to the packaging bag to improve the explosion phenomenon of the packaging bag.

[0045] Furthermore, an explosion-proof groove 703 is opened through the middle of the spherical cover 702, and the spherical cover 702 is made of food-grade plastic, wherein the spherical cover 702 is recessed toward the dehumidification net 602. When the internal pressure of the packaging bag is greater than the deformation force of the spherical cover 702, the explosion-proof groove in the middle of the spherical cover 702 is expanded to discharge the gas in the packaging bag, thereby reducing the high air pressure in the packaging bag.

[0046] In the embodiment of the utility model, when the packaging bag is used, the packaging material can be loaded into the packaging bag by opening the bag mouth of the bag body 1, and then the sealing strip of the bag mouth of the packaging bag is clamped to seal the bag mouth end, and then the bag mouth packaging technology of the existing packaging bag is applied, and an ultrasonic sealing machine can be used for sealing. During the use of the packaging bag, the edges of the packaging bag can be reinforced by connecting the three silicone sheets 301 in the corner strip 3 inside the bag body 1 to increase the wear resistance of the packaging bag. Then, by using the paper surface layer 4 and the plastic film 5 on the bag body 1, the overall hardness of the packaging bag can be increased to avoid damage to the bag surface of the packaging bag. When the internal air pressure of the packaging bag increases, or when the packaging bag is squeezed, the gas inside the packaging bag will pass through the through tube 601 and rush towards the spherical cover 702, so that the spherical cover 702 passes through the explosion-proof groove 703 in the middle, and the spherical cover 702 is stretched open to discharge the gas, thereby reducing the pressure inside the packaging bag, avoiding the explosion of the packaging bag, and also avoiding the entry of external gas. The dehumidification net 602 can be used for drying the through groove of the through tube 601, for dehumidification protection on the rear side of the explosion-proof valve 7, to increase the dryness inside the packaging bag, to protect the items inside the packaging bag, and to improve the quality and use effect of the packaging bag.

[0047] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A food-grade safety valve packaging bag, comprising a bag body (1) and a sealing strip (2) arranged inside the bag body (1), characterized in that: Also includes: Corner strips (3) are arranged at the inner corners of the bag body (1) and are used to prevent leakage at the corners of the packaging bag; A paper surface layer (4) covers both sides of the bag body (1) and is used to increase the hardness of the packaging bag; A plastic film (5) covers the outer side of the paper surface layer (4) and is used to waterproof the paper surface layer (4); A drying seat (6) is disposed through the bag body (1) and is used for drying the interior of the packaging bag; An explosion-proof valve (7) is arranged in the middle of the drying seat (6) and is used to prevent the packaging bag from exploding.

2. A food-grade safety valve packaging bag according to claim 1, characterized in that: The corner strip (3) comprises three silicone sheets (301) with connected ends, and each of the silicone sheets (301) is connected to the bag body (1).

3. A food-grade safety valve packaging bag according to claim 1, characterized in that: The number of the paper surface layers (4) is two, and the thickness of the paper surface layers (4) is lower than the thickness of the bag body (1).

4. The food-grade safety valve packaging bag according to claim 1, characterized in that: The thickness of the plastic film (5) is lower than the thickness of the bag body (1), and the plastic film (5) is made of food-grade plastic.

5. The food-grade safety valve packaging bag according to claim 1, characterized in that: The drying seat (6) comprises a through-tube (601) penetrating the bag body (1) and a dehumidification net (602) arranged on the through-tube (601).

6. A food-grade safety valve packaging bag according to claim 5, characterized in that: The dehumidification net (602) is made of absorbent cotton.

7. The food-grade safety valve packaging bag according to claim 1, characterized in that: The explosion-proof valve (7) comprises a connecting sleeve (701) sleeved on the drying seat (6) and a spherical cover (702) arranged in the middle of the connecting sleeve (701).

8. The food-grade safety valve packaging bag according to claim 7, characterized in that: An explosion-proof groove (703) is provided through the middle of the spherical cover (702), and the spherical cover (702) is made of food-grade plastic.

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