High-sealing-performance food packaging bag with double-sealing structure

Abstract

The utility model belongs to the technical field of food packaging bags, and particularly discloses a high-sealing-performance food packaging bag with a double-sealing structure, which comprises a packaging bag body, the bottom of the packaging bag body is fixedly connected with a bottom plate, the inside of the bottom plate is provided with two limiting grooves extending to the outside of the bottom plate, and the two limiting grooves are arranged in the packaging bag body. Two limiting grooves are formed in the bottom plate, limiting frames are slidably connected into the two limiting grooves, a pressing plate is fixedly connected between the two limiting frames, a power groove is formed in the bottom plate, the section of the power groove is in a [shape, and a fixing frame is slidably connected into the power groove and is in an L shape. The fixing frame slides into the fixing groove, the position of the limiting frame and the position of the pressing plate are fixed, the position of the packaging bag body is fixed, folding of the packaging bag body is achieved, and storage of the packaging bag body is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging bags, in particular to a high-sealing food packaging bag with a double-sealing structure. Background Technique

[0002] Food packaging is an integral part of food products and one of the main processes in the food industry. It protects food from damage by biological, chemical, and physical external factors during the circulation process from the factory to the hands of consumers. It can also have the function of maintaining the stable quality of the food itself and is convenient for the consumption of food.

[0003] After retrieval, some existing food packaging bags are sealed through sealing strips provided on the bag body to ensure the cleanliness of food. When users use food packaging bags, as the food inside the food packaging bag decreases, the space inside the food packaging bag becomes larger. Therefore, when users need to seal and store food, they usually need to fold the food packaging bag. However, since some existing food packaging bags do not have a folding structure, the food packaging bag is prone to unfolding after folding, thus reducing the folding and storage effect of the food packaging bag. In view of the above situation, technological innovation is carried out on the basis of existing devices. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-sealing food packaging bag with a double-sealing structure to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A high-sealing food packaging bag with a double-sealing structure, including a packaging bag body. The bottom of the packaging bag body is fixedly connected with a bottom plate. A limiting groove extending to the outside of the bottom plate is opened inside the bottom plate. The number of the limiting grooves is two. A limiting frame is slidably connected inside each of the two limiting grooves. A pressing plate is fixedly connected between the two limiting frames. A power groove is opened inside the bottom plate. The cross-section of the power groove is in a C shape. A fixed frame is slidably connected inside the power groove. The fixed frame is in an L shape. A fixing groove is opened on one side of the limiting frame close to the fixed frame. One side of the fixed frame close to the fixing groove is inserted into the inner wall of the fixing groove. The packaging bag body includes a corrosion-resistant layer, a PET film, a base layer, and a BOPP film. The cross-section of the limiting frame is in a T shape.

[0006] Preferably, a rotating shaft extending to the outside of the pressing plate is rotatably connected inside the power groove. A pulling rope is fixedly connected to the outer surface of the rotating shaft. One end of the pulling rope away from the rotating shaft is fixedly connected to the surface of the fixed frame.

[0007] Preferably, a spring is fixedly connected to one side of the fixed frame away from the fixing groove. One end of the spring away from the fixed frame is fixedly connected to the inner wall of the power groove.

[0008] Preferably, two sealing strips are arranged inside the bag body of the packaging bag.

[0009] Preferably, the BOPP film is arranged on the inner side of the base layer.

[0010] Preferably, the PET film is arranged on the outer side of the base layer, and the corrosion-resistant layer is arranged on the outer side of the PET film.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. For the high-sealing food packaging bag with a double-sealing structure, through the acting force of the spring, the fixing frame slides into the inside of the fixing groove, and the positions of the limiting frame and the pressing plate are fixed, so that the position of the bag body of the packaging bag is fixed, and the folding of the bag body of the packaging bag is realized, making the storage of the bag body of the packaging bag more convenient. At the same time, when there is less food inside the bag body of the packaging bag, users can fold the bag body of the packaging bag more conveniently, making it more convenient for users to use the bag body of the packaging bag.

[0013] 2. For the high-sealing food packaging bag with a double-sealing structure, through the mutual cooperation of the corrosion-resistant layer, the PET film and the BOPP film, the moisture-proof property and moisture-barrier property of the bag body of the packaging bag are enhanced to a certain extent, the tensile strength and impact strength of the bag body of the packaging bag are improved to a certain extent, the anti-corrosion and wear resistance of the bag body of the packaging bag are improved to a certain extent, and the service life of the bag body of the packaging bag is improved to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a high-sealing food packaging bag with a double-sealing structure according to the utility model;

[0015] Figure 2 is a schematic structural diagram of the sealing strip of the utility model;

[0016] Figure 3 is a schematic structural diagram of the bag body of the packaging bag of the utility model;

[0017] Figure 4 is a schematic cross-sectional structural diagram of the bottom plate of the utility model.

[0018] In the figure: 1. Bag body of the packaging bag; 2. Sealing strip; 3. Bottom plate; 4. Pressing plate; 5. Limiting groove; 6. Limiting frame; 7. Rotating shaft; 8. Power groove; 9. Pulling rope; 10. Fixing frame; 11. Fixing groove; 12. Spring; 13. Corrosion-resistant layer; 14. PET film; 15. Base layer; 16. BOPP film. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Please refer to Figures 1-4, the present utility model provides a technical solution: a food packaging bag with a double-sealing structure and high sealing performance, including a packaging bag body 1. A bottom plate 3 is fixedly connected to the bottom of the packaging bag body 1. A limiting groove 5 extending to the outside of the bottom plate 3 is formed inside the bottom plate 3. The number of the limiting grooves 5 is two. A limiting frame 6 is slidably connected to each of the two limiting grooves 5. The cross-section of the limiting frame 6 is T-shaped. A pressing plate 4 is fixedly connected between the two limiting frames 6. By sliding the top of the packaging bag body 1 between the pressing plate 4 and the bottom plate 3, the pressing plate 4 can fix the packaging bag body 1. A power groove 8 is formed inside the bottom plate 3. The cross-section of the power groove 8 is U-shaped. A fixing frame 10 is slidably connected to the inside of the power groove 8. The fixing frame 10 is L-shaped. A fixing groove 11 is formed on one side of the limiting frame 6 close to the fixing frame 10. One side of the fixing frame 10 close to the fixing groove 11 is inserted into the inner wall of the fixing groove 11. The fixing frame 10 can slide into and out of the inside of the fixing groove 11, and the fixing and release of the limiting frame 6 are realized. The packaging bag body 1 includes a corrosion-resistant layer 13, a PET film 14, a base layer 15, and a BOPP film 16.

[0020] Further, a rotating shaft 7 extending to the outside of the pressing plate 4 is rotatably connected to the inside of the power groove 8. A pulling rope 9 is fixedly connected to the outer surface of the rotating shaft 7. One end of the pulling rope 9 far from the rotating shaft 7 is fixedly connected to the surface of the fixing frame 10. By winding the pulling rope 9 around the rotating shaft 7, the pulling rope 9 can drive the fixing frame 10 to slide out of the inside of the fixing groove 11.

[0021] Further, a spring 12 is fixedly connected to one side of the fixing frame 10 far from the fixing groove 11. One end of the spring 12 far from the fixing frame 10 is fixedly connected to the inner wall of the power groove 8. By moving the fixing frame 10, the spring 12 can be compressed and reset.

[0022] When there is less food inside the packaging bag body 1 and the packaging bag body 1 needs to be folded, the staff rotates the rotating shaft 7, winds the pulling rope 9 around the rotating shaft 7, and drives the fixing frame 10 to slide out of the inside of the fixing groove 11 by the pulling rope 9, realizing the release of the fixation of the limiting frame 6 and the pressing plate 4, compressing the spring 12. After the top of the packaging bag body 1 slides between the pressing plate 4 and the bottom plate 3, after the staff resets the limiting frame 6 and releases the rotating shaft 7, by the acting force of the spring 12, the fixing frame 10 slides into the inside of the fixing groove 11, and the positions of the limiting frame 6 and the pressing plate 4 are fixed, fixing the position of the packaging bag body 1 and realizing the folding of the packaging bag body 1, making the storage of the packaging bag body 1 more convenient. At the same time, when there is less food inside the packaging bag body 1, users can fold the packaging bag body 1 more conveniently, making it more convenient for users to use the packaging bag body 1.

[0023] Further, two sealing strips 2 are provided inside the packaging bag body 1. Through the sealing strips 2, the packaging bag body 1 can be sealed. At the same time, through the arrangement of the two sealing strips 2, double sealing of the packaging bag body 1 can be achieved.

[0024] Further, the BOPP film 16 is arranged inside the base layer 15. The material of the BOPP film 16 is BOPP film. Through the BOPP film 16, the moisture-proof property and moisture barrier property of the packaging bag body 1 can be improved to a certain extent. The PET film 14 is arranged outside the base layer 15. The material of the PET film 14 is PET film. Through the PET film 14, the tensile strength and impact resistance of the packaging bag body 1 can be improved to a certain extent. The corrosion-resistant layer 13 is arranged outside the PET film 14. The material of the corrosion-resistant layer 13 is polytetrafluoroethylene. Through the corrosion-resistant layer 13, the anti-corrosion and wear resistance of the packaging bag body 1 can be improved to a certain extent, and to a certain extent, the service life of the packaging bag body 1 can be extended.

[0025] Working principle: For this type of high-sealing food packaging bag with a double-sealing structure, first, through the PET film 14, the tensile strength and impact resistance of the packaging bag body 1 can be improved to a certain extent. Through the corrosion-resistant layer 13, the anti-corrosion and wear resistance of the packaging bag body 1 can be improved to a certain extent, and to a certain extent, the service life of the packaging bag body 1 can be extended. When there is less food inside the packaging bag body 1 and the packaging bag body 1 needs to be folded, the staff rotates the rotating shaft 7, winds the pull rope 9 around the rotating shaft 7, and the pull rope 9 drives the fixed frame 10 to slide out of the inside of the fixed groove 11, realizing the release of the fixation of the limiting frame 6 and the pressing plate 4, compressing the spring 12. After the top of the packaging bag body 1 slides into the space between the pressing plate 4 and the bottom plate 3, when the staff makes the limiting frame 6 reset and then releases the rotating shaft 7, under the action of the spring 12, the fixed frame 10 slides into the inside of the fixed groove 11, and the positions of the limiting frame 6 and the pressing plate 4 are fixed, fixing the position of the packaging bag body 1 and realizing the folding of the packaging bag body 1, making the storage of the packaging bag body 1 more convenient. At the same time, when there is less food inside the packaging bag body 1, users can fold the packaging bag body 1 more conveniently.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-sealing food packaging bag with a double-sealing structure, comprising a packaging bag body (1), characterized in that: The bottom of the packaging bag body (1) is fixedly connected to a bottom plate (3), the bottom plate (3) is provided with a limiting groove (5) extending to the outside of the bottom plate (3), the number of the limiting grooves (5) is two, the insides of the two limiting grooves (5) are both slidably connected to the limiting frames (6), a pressing plate (4) is fixedly connected between the two limiting frames (6), a power groove (8) is provided inside the bottom plate (3), the cross section of the power groove (8) is in the shape of a Chinese character "匚", the inside of the power groove (8) is slidably connected to a fixing frame (10), the fixing frame (10) is in the shape of an L, a fixing groove (11) is provided on a side of the limiting frame (6) close to the fixing frame (10), and a side of the fixing frame (10) close to the fixing groove (11) is plugged into the inner wall of the fixing groove (11), and the packaging bag body (1) comprises a corrosion-resistant layer (13), a PET film (14), a base layer (15) and a BOPP film (16).

2. The high-sealing food packaging bag with a double-sealing structure according to claim 1, wherein: The cross section of the limiting frame (6) is T-shaped.

3. A highly-sealed food packaging bag with a dual-sealing structure according to claim 1, characterized in that: The power groove (8) is internally rotatably connected to a rotating shaft (7) extending to the outside of the pressure plate (4), and the outer surface of the rotating shaft (7) is fixedly connected to a pull rope (9), and one end of the pull rope (9) away from the rotating shaft (7) is fixedly connected to the surface of the fixing frame (10).

4. A highly-sealed food packaging bag with a double-sealing structure according to claim 3, characterized in that: A spring (12) is fixedly connected to one side of the fixing frame (10) away from the fixing groove (11), and one end of the spring (12) away from the fixing frame (10) is fixedly connected to the inner wall of the power groove (8).

5. A highly-sealed food packaging bag with a double-sealing structure according to claim 1, characterized in that: Two sealing strips (2) are arranged inside the packaging bag body (1).

6. A highly-sealed food packaging bag with a double-sealing structure according to claim 1, characterized in that: The BOPP film (16) is arranged on the inner side of the base layer (15).

7. The high-sealing food packaging bag with a double-sealing structure according to claim 6, characterized in that: The PET film (14) is arranged on the outer side of the base layer (15).

8. A highly sealed food packaging bag with a double-sealing structure according to claim 7, characterized in that: The corrosion-resistant layer (13) is arranged on the outer side of the PET film (14).

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