A food packaging bag with a built-in zipper

Abstract

This utility model discloses a food packaging bag with a built-in zipper, belonging to the field of packaging bag technology. It includes a packaging bag body and display components fixedly connected to both sides of the packaging bag body. Each of the two display components has a color-changing component inside. The top opening of the packaging bag body is fixedly connected to an elastic connecting seat, and two sealing strips are symmetrically fixedly connected to the inner side of the elastic connecting seat. When the zipper head moves in one direction, it pushes the two sets of zipper teeth closer together and tightly engages, thereby sealing the opening of the packaging bag body and preventing the entry of external air, moisture, and foreign objects. When the zipper head moves in the opposite direction, the two sets of zipper teeth gradually separate, and the opening of the packaging bag body is opened, allowing easy access to the food inside. By sliding the zipper head, the engagement and disengagement of the zipper teeth are controlled, achieving repeated sealing of the packaging bag.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, specifically a food packaging bag with a built-in zipper. Background Technology

[0002] In today's booming modern food industry, food packaging, as a crucial link in ensuring food quality from production to consumption, plays a vital role. Food packaging must not only ensure food storage but, more importantly, effectively block external environmental factors from negatively impacting food quality.

[0003] Traditional food packaging sealing methods have many drawbacks. Common heat-sealed packaging bags are difficult to reseal after opening, making food susceptible to moisture, oxidation, and odor contamination, affecting food quality and shelf life. While some packaging bags with zipper structures can achieve a certain degree of resealing, most lack a clear indication of their open / closed status, making it difficult to quickly and accurately determine whether the packaging bag is sealed. This can easily lead to food spoilage due to negligence.

[0004] Therefore, this utility model provides a food packaging bag with a built-in zipper to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a food packaging bag with a built-in zipper, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a food packaging bag with a built-in zipper, comprising a packaging bag body and display components respectively fixedly connected to both sides of the packaging bag body, wherein each of the two display components is provided with a color-changing component inside, an elastic connecting seat is fixedly connected to the top opening of the packaging bag body, and two sealing strips are symmetrically fixedly connected to the inner side of the elastic connecting seat, and a number of chain teeth are linearly arranged on one side of each pair of sealing strips, and the two sets of chain teeth are interlocked with each other, and a zipper head is slidably connected between the two sets of chain teeth on the outside of the two sealing strips, the zipper head being used to drive the two sets of chain teeth to engage or disengage with each other.

[0009] As a preferred technical solution of this application, the display component includes a connecting frame, which is fixedly connected to the inner side of the packaging bag body. A connecting groove is provided on one side of the connecting frame, and a transparent partition is fixedly connected to the inner side of the connecting groove.

[0010] As a preferred technical solution of this application, the color-changing component includes a transmission roller located inside the connecting frame. There are two transmission rollers, and a conveyor belt is connected between the outer sides of the two transmission rollers. Two flexible display layers are connected to the outer sides of the two conveyor belts, and the two flexible display layers are each displayed in a different color. One side of the flexible display layer corresponds to the transparent partition.

[0011] As a preferred technical solution of this application, two support frames are symmetrically fixedly connected to the inner side of the connecting frame, and the upper and lower sides of the two support frames are respectively rotatably connected to the two ends of the two transmission rollers.

[0012] As a preferred technical solution of this application, a connector is fixedly connected to the lower surface of the zipper head, and both ends of the connector are fixedly connected to the outer sides of the two conveyor belts respectively.

[0013] As a preferred technical solution of this application, two first hinge members are symmetrically fixedly connected to both sides of the elastic connecting seat, and a second hinge member is hinged to the end of each of the two first hinge members, and a carrying strap is fixedly connected between the ends of each pair of second hinge members.

[0014] (III) Beneficial Effects

[0015] 1. When the zipper head moves in one direction, it pushes the two sets of zipper teeth closer together and tightly engages, thus sealing the opening of the packaging bag and preventing outside air, moisture, and foreign objects from entering. When the zipper head moves in the opposite direction, the two sets of zipper teeth gradually separate, and the opening of the packaging bag is opened, making it easy to access the food inside. By sliding the zipper head, the engagement and disengagement of the zipper teeth are controlled, achieving repeated sealing of the packaging bag. This effectively prevents food from contacting the external environment, avoiding moisture, oxidation, and odor contamination, and greatly extending the shelf life of the food.

[0016] 2. When the zipper head slides on the sealing strip, it drives the conveyor belt to move along the outer side of the two drive rollers via the connector. As the conveyor belt moves, the two flexible display layers of different colors move accordingly. When the packaging bag is opened or closed, the flexible display layers of different colors will be displayed at the transparent partition. By observing the color change at the transparent partition, users can quickly and intuitively judge the open or closed state of the packaging bag without touching the packaging bag itself. This effectively avoids food spoilage and waste due to user negligence in not sealing the packaging bag properly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the packaging bag body of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the connecting frame of this utility model;

[0021] Figure 5 This is a schematic diagram of a partial internal cross-sectional structure of the present invention.

[0022] In the picture:

[0023] 101. Packaging bag body; 102. Flexible connecting seat; 103. Sealing strip; 104. Chain tooth; 105. Zipper head; 201. Connecting frame; 202. Connecting groove; 203. Transparent partition; 301. Drive roller; 302. Conveyor belt; 303. Flexible display layer; 4. Support frame; 5. Connector; 601. First hinge; 602. Second hinge; 603. Handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 As shown, the purpose of this embodiment is to provide a food packaging bag with a built-in zipper, including a packaging bag body 101 and display components fixedly connected to both sides of the packaging bag body 101. Both display components are provided with color-changing components inside. An elastic connecting seat 102 is fixedly connected to the top opening of the packaging bag body 101. Two sealing strips 103 are symmetrically fixedly connected to the inner side of the elastic connecting seat 102. Several chain teeth 104 are linearly arranged on the outer edge of one side of each pair of sealing strips 103. The two sets of chain teeth 104 are interlocked with each other. A zipper head 105 is slidably connected between the two sets of chain teeth 104 on the outer side of the two sealing strips 103. The zipper head 105 is used to drive the two sets of chain teeth 104 to engage or disengage with each other.

[0026] In this embodiment, an elastic connecting seat 102 is provided at the top opening of the packaging bag body 101, which provides basic support and a certain elastic deformation capability for the entire sealing structure. By pulling the zipper head 105, it slides along the outside of the two sealing strips 103. When the zipper head 105 moves in one direction, it pushes the two sets of chain teeth 104 to come closer to each other and engage tightly, thereby sealing the opening of the packaging bag body 101 and preventing the entry of external air, moisture and foreign objects. When the zipper head 105 moves in the opposite direction, it causes the two sets of chain teeth 104 to gradually separate, and the opening of the packaging bag body 101 is opened, so that the food inside can be easily taken out. By sliding the zipper head 105, the engagement and disengagement of the chain teeth 104 are controlled, and the packaging bag can be repeatedly sealed, thereby effectively preventing the food from contacting the external environment, avoiding the food from getting damp, oxidizing, or contaminating with odors, and greatly extending the shelf life of the food.

[0027] In this embodiment, as Figure 4 and Figure 5 As shown, the display component includes a connecting frame 201, which is fixedly connected to the inner side of the packaging bag body 101. A connecting groove 202 is provided on one side of the connecting frame 201, and a transparent partition 203 is fixedly connected to the inner side of the connecting groove 202.

[0028] The color-changing component includes a transmission roller 301 located inside the connecting frame 201. There are two transmission rollers 301, and a conveyor belt 302 is connected between the outer sides of the two transmission rollers 301. Two flexible display layers 303 are connected to the outer sides of the two conveyor belts 302, and the two flexible display layers 303 are each displayed in a different color. One side of the flexible display layer 303 corresponds to the transparent partition 203.

[0029] Two support frames 4 are symmetrically fixedly connected to the inner side of the connecting frame 201, and the upper and lower sides of the two support frames 4 are respectively rotatably connected to the two ends of the two transmission rollers 301.

[0030] A connector 5 is fixedly connected to the lower surface of the zipper head 105, and both ends of the connector 5 are fixedly connected to the outer sides of the two conveyor belts 302 respectively.

[0031] In this embodiment, the display component consists of a basic frame formed by a connecting frame 201, a connecting groove 202, and a transparent partition 203. The two drive rollers 301 in the color-changing component support and drive the conveyor belt 302. Two flexible display layers 303 are connected to the outside of the conveyor belt 302, and each display layer displays a different color. A connector 5 fixed to the lower surface of the zipper head 105 is connected to the conveyor belt 302. When the zipper head 105 slides on the sealing strip 103, it drives the conveyor belt 302 to move along the outside of the two drive rollers 301 via the connector 5. As the conveyor belt 302 moves, it also drives the flexible display layers 303 of different colors to move. Since one side of the flexible display layer 303 corresponds to the transparent partition 203, the different colors of the flexible display layers change color during the rotation of the conveyor belt 302. The flexible display layer 303 is displayed through the transparent partition 203. When the packaging bag body 101 is closed, one color of the flexible display layer 303 is displayed at the transparent partition 203. When the packaging bag is opened, another color of the flexible display layer 303 is displayed at the transparent partition 203. By observing the color change at the transparent partition 203, users can quickly and intuitively judge the opening and closing status of the packaging bag without touching the packaging bag body 101. This effectively avoids the situation where food spoils and is wasted due to user negligence in not sealing the packaging bag properly.

[0032] In this embodiment, as Figure 1 and Figure 3 As shown, two first hinge members 601 are symmetrically fixedly connected to both sides of the elastic connecting seat 102. The ends of the two first hinge members 601 are hinged to second hinge members 602, and a carrying strap 603 is fixedly connected between the ends of every two second hinge members 602.

[0033] In this embodiment, the carrying structure composed of the first hinge 601, the second hinge 602, and the carrying strap 603 on both sides of the elastic connecting seat 102 makes the packaging bag easy to carry.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A food packaging bag with a built-in zipper, comprising a packaging bag body (101) and display components respectively fixedly connected to both sides of the packaging bag body (101), wherein each of the two display components is provided with a color-changing component inside, characterized in that: An elastic connecting seat (102) is fixedly connected to the top opening of the packaging bag body (101). Two sealing strips (103) are symmetrically fixedly connected to the inner side of the elastic connecting seat (102). Each pair of sealing strips (103) has a number of chain teeth (104) arranged linearly on one side of its outer edge. The two sets of chain teeth (104) mesh with each other. A zipper head (105) is slidably connected between the two sets of chain teeth (104) on the outside of the two sealing strips (103). The zipper head (105) is used to drive the two sets of chain teeth (104) to mesh or separate.

2. The self-zippered food packaging bag of claim 1, wherein: The display component includes a connecting frame (201), which is fixedly connected to the inner side of the packaging bag body (101). A connecting groove (202) is provided on one side of the connecting frame (201), and a transparent partition (203) is fixedly connected to the inner side of the connecting groove (202).

3. The self-zippered food packaging bag of claim 2, wherein: The color-changing component includes a transmission roller (301) located inside the connecting frame (201). There are two transmission rollers (301), and a conveyor belt (302) is connected between the outer sides of the two transmission rollers (301). Two flexible display layers (303) are connected to the outer sides of the two conveyor belts (302), and the two flexible display layers (303) are each presented in different colors. One side of the flexible display layer (303) corresponds to the transparent partition (203).

4. The self-zippered food packaging bag of claim 2, wherein: The inner side of the connecting frame (201) is symmetrically fixedly connected to two support frames (4), and the upper and lower sides of the two support frames (4) are respectively rotatably connected to the two ends of the two transmission rollers (301).

5. The self-zippered food packaging bag of claim 1, wherein: The lower surface of the zipper head (105) is fixedly connected to a connector (5), and both ends of the connector (5) are fixedly connected to the outer sides of the two conveyor belts (302).

6. The self-zippered food packaging bag of claim 1, wherein: The elastic connecting seat (102) has two first hinge members (601) symmetrically fixedly connected on both sides. The ends of the two first hinge members (601) are hinged to second hinge members (602), and a carrying strap (603) is fixedly connected between the ends of each pair of second hinge members (602).

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