Packaging bag with double-sealing structure
By introducing components such as anti-slip rubber pillars, threaded hollow pillars, folding grooves, and Velcro into the packaging bag, the problem of wasted space when the packaging bag is not in use is solved, achieving compact storage and efficient sealing, which is suitable for the transportation of food and medicine.
Patent Information
- Application Number
- CN202520538424.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-26
Smart Images

Figure CN223792078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag technology, specifically a packaging bag with a double-sealed structure. Background Technology
[0002] Packaging bags are bags used to package various items and are widely used in daily life and industrial production. Their main function is to protect and transport goods, facilitating their storage and transportation during production and distribution. The sealing requirements for packaging bags differ depending on the type of object being packaged.
[0003] For example, Chinese utility model patent application number 202022810720.8 discloses a packaging bag with a reusable sealing structure. By setting a first rubber sealing strip and a second rubber sealing strip, the packaging bag body can achieve a preliminary sealing function. An isolation strip is set inside the packaging bag body to facilitate the categorized placement of items within the bag body. First Velcro fasteners are set on both sides of the isolation strip and the inner wall of the packaging bag body to further seal the items. A plastic film is set on the inner wall of the packaging bag body and both sides of the isolation strip, giving the packaging bag body a certain degree of waterproofing. Insulating cotton is set inside the isolation strip and on the inner wall of the packaging bag body to keep the food inside the packaging bag body warm. Second Velcro fasteners are set on the front and back sides of the packaging bag body. After the packaging bag body is rolled up and sealed from the top, the second Velcro fasteners on both sides adhere to each other, further sealing the packaging bag body and ensuring its airtightness. Since the first and second Velcro fasteners can be repeatedly adhered, the packaging bag body has reusable sealing properties. However, this device still has certain shortcomings.
[0004] When not in use, packaging bags are not easy to fold and store, thus taking up a lot of storage space and resulting in a great waste of space resources, making them less practical.
[0005] Therefore, we propose a packaging bag with a double-sealed structure to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this utility model is to provide a packaging bag with a double-sealed structure to solve the problem mentioned in the background art that the packaging bags on the market are not easy to fold and store when not in use, thus occupying a large amount of storage space, resulting in a great waste of space resources and low practicality.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a packaging bag with a double-sealed structure, comprising a packaging bag body, anti-slip rubber posts installed on both the front and rear sides of the lower surface of the packaging bag body, a threaded hollow post installed on the right side of the packaging bag body, a threaded cap installed on the threaded hollow post, a folding groove provided on the front surface of the packaging bag body, a sealing area installed on the top of the packaging bag body, and a first pressing sealing strip assembly and a second pressing sealing strip assembly installed sequentially from top to bottom inside the sealing area;
[0008] The packaging bag body has fixing buckles installed on both the left and right sides of its front surface, and plastic threaded posts installed on both the front and rear sides of its front surface. Connecting strips are fitted onto the plastic threaded posts, and adjusting screws are installed on the plastic threaded posts. A first hook and loop fastener is installed on the side of the front connecting strip opposite to the packaging bag body, and a first hook and loop fastener rough side is installed on the side of the rear connecting strip opposite to the packaging bag body. A second hook and loop fastener rough side and a second hook and loop fastener are respectively installed on the front and rear sides of the packaging bag body.
[0009] Preferably, the surface of the threaded cap is provided with anti-slip texture, and the threaded cap is threadedly connected to the threaded hollow column.
[0010] With the above structural design, the threaded cap can be screwed onto the threaded hollow column, which makes it easy to open and seal the threaded hollow column. Since the surface of the threaded cap is provided with anti-slip texture, the user can tighten or unscrew the threaded cap more easily.
[0011] Preferably, the threaded hollow column is connected to the interior of the packaging bag body, and the threaded hollow column is fixedly connected to the packaging bag body.
[0012] With the above structural design, when small bulk materials are placed inside the packaging bag, the threaded cap can be removed during material retrieval, and the materials inside the packaging bag can be discharged through the threaded hollow column, which is more convenient and faster.
[0013] Preferably, handle components are installed on both the front and rear sides of the packaging bag body, and the handle components are fixedly connected to the packaging bag body.
[0014] With the above structural design, when handling or transporting the packaging bag, the bag can be moved by holding the handle assembly. The handle assembly is fixedly connected to the packaging bag body, ensuring stability and reliability during handling and making it convenient for users to carry the packaging bag.
[0015] Preferably, the first pressing sealing strip assembly and the second pressing sealing strip assembly are parallel to each other, and both the first pressing sealing strip assembly and the second pressing sealing strip assembly are fixedly connected to the interior of the packaging bag body.
[0016] Using the above structural design, the items to be packaged are placed into the opening of the packaging bag. Then, by pressing the second pressing sealing strip assembly in the sealing area, the sealing strip is tightly fitted, completing the initial seal and preventing accidental spillage of the items during transportation. Next, the first pressing sealing strip assembly is pressed for a secondary seal, further enhancing the sealing performance of the packaging bag and ensuring the stability of the internal environment. This is especially effective for items with high sealing requirements, such as food and medicine, extending their shelf life.
[0017] Preferably, the fixing buckle and the anti-slip rubber post are parallel to each other, and when the packaging bag body is folded, the anti-slip rubber post and the fixing buckle are engaged.
[0018] With the above structural design, when the packaging bag is idle, it can be folded using the folding groove. First, fold the packaging bag along the direction of the folding groove to reduce the volume of the packaging bag. After folding, the anti-slip rubber post will engage with the fixing buckle to prevent the folded packaging bag from unfolding. At the same time, the anti-slip rubber post will also prevent the bottom of the packaging bag from slipping, making the packaging bag more stable when placed.
[0019] Preferably, the adjusting screw is threadedly connected to the plastic threaded post, and the height of the plastic threaded post is greater than the height of the fixing buckle.
[0020] With the above structural design, when a large object is placed inside the packaging bag and does not need to be sealed, the first hook side of the front connecting strip is separated from the second hook side, and the second hook side of the rear connecting strip is separated from the second hook side. Then, the connecting strips on both the front and rear sides are rotated upwards, so that the first hook side of the front and rear connecting strips and the second hook side of the rear connecting strips adhere together. Under the action of the connecting strips on both the front and rear sides, the sealing area is tightened, thereby preventing large materials from being discharged from the packaging bag.
[0021] Compared with the prior art, the beneficial effects of this utility model are: the packaging bag with a double-sealed structure:
[0022] 1. Equipped with a first and a second press-sealing strip assembly, the items to be packaged are placed into the opening of the packaging bag. Then, by pressing the second press-sealing strip assembly in the sealing area, the sealing strip is tightly adhered, completing the initial seal and preventing accidental spillage of the items during transportation. Next, the first press-sealing strip assembly is pressed again for a secondary seal, further enhancing the sealing performance of the packaging bag and ensuring the stability of the internal environment. This is especially effective in extending the shelf life of items with high sealing requirements, such as food and medicine.
[0023] 2. It is equipped with a fixing buckle. When the packaging bag is not in use, it can be folded using the folding groove. First, fold the packaging bag along the direction of the folding groove to reduce the volume of the packaging bag. After folding, the anti-slip rubber post will engage with the fixing buckle to prevent the folded packaging bag from falling apart. At the same time, the anti-slip rubber post will also prevent the bottom of the packaging bag from slipping, making the packaging bag more stable when placed. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0025] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0026] Figure 3 This is a schematic diagram of the connecting strip of this utility model in use;
[0027] Figure 4 This is a schematic diagram of the overall main structure of the packaging bag body of this utility model;
[0028] Figure 5 This is a schematic diagram of the overall rear view of the packaging bag body of this utility model;
[0029] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B.
[0030] In the diagram: 1. Packaging bag body; 2. Anti-slip rubber post; 3. Threaded hollow post; 4. Threaded cap; 5. Folding groove; 6. Sealing area; 7. First press-to-seal strip assembly; 8. Second press-to-seal strip assembly; 9. Handle assembly; 10. Fixing buckle; 11. Plastic threaded post; 12. Connecting strip; 13. Adjusting screw; 14. First hook and loop fastener; 15. First hook and loop fastener rough surface; 16. Second hook and loop fastener rough surface; 17. Second hook and loop fastener. Detailed Implementation
[0031] 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.
[0032] Please see Figures 1-6This utility model provides a technical solution: a packaging bag with a double-sealed structure, including a packaging bag body 1, anti-slip rubber posts 2, threaded hollow posts 3, threaded caps 4, folding grooves 5, sealing areas 6, a first pressing sealing strip assembly 7, a second pressing sealing strip assembly 8, a handle assembly 9, a fixing buckle 10, plastic threaded posts 11, connecting strips 12, adjusting screws 13, a first hook and loop fastener surface 14, a first hook and loop fastener surface 15, a second hook and loop fastener surface 16, and a second hook and loop fastener surface 17. Anti-slip rubber posts 2 are installed on both the front and rear sides of the lower surface of the packaging bag body 1, and a threaded hollow post 3 is installed on the right side of the packaging bag body 1. A threaded cap 4 is installed on the hollow threaded column 3. The surface of the threaded cap 4 is provided with anti-slip texture. The threaded cap 4 is threadedly connected to the hollow threaded column 3, allowing it to be screwed onto the column 3 for easy opening and sealing. The anti-slip texture on the surface of the threaded cap 4 makes it easier for the user to tighten or loosen it. The hollow threaded column 3 is connected to the interior of the packaging bag body 1 and is fixedly connected to it. When small, bulk materials are placed inside the packaging bag body 1, the threaded cap 4 can be removed during material removal, allowing the material inside the packaging bag body 1 to be discharged through the hollow threaded column 3, making it more convenient. Convenient and quick, the packaging bag body 1 has a folding groove 5 on its front surface. A sealing area 6 is installed on the top of the packaging bag body 1. Inside the sealing area 6, from top to bottom, a first pressing sealing strip assembly 7 and a second pressing sealing strip assembly 8 are installed sequentially. Handle assemblies 9 are installed on both the front and rear sides of the packaging bag body 1. The handle assemblies 9 are fixedly connected to the packaging bag body 1. When handling or transporting the packaging bag, the bag can be moved by gripping the handle assemblies 9. The fixed connection of the handle assemblies 9 to the packaging bag body 1 ensures stability and reliability during handling, making it convenient for users to carry the packaging bag. The first pressing sealing strip assembly 7 and the second pressing sealing strip assembly 8 are also included. The components 8 are parallel to each other. The first pressing sealing strip component 7 and the second pressing sealing strip component 8 are both fixedly connected to the inside of the packaging bag body 1. The items to be packaged are put into the packaging bag body 1 through the opening. Then, by pressing the second pressing sealing strip component 8 in the sealing area 6, the sealing strip is tightly fitted to complete the initial seal and prevent the items from accidentally spilling out during transportation. Then, the first pressing sealing strip component 7 is pressed again to perform a secondary seal, further enhancing the sealing performance of the packaging bag and ensuring the stability of the internal environment of the packaging. Especially for some items with high requirements for sealing performance, such as food and medicine, it can effectively extend their shelf life.
[0033] The packaging bag body 1 has fixing buckles 10 installed on both the left and right sides of its front surface. The fixing buckles 10 and the anti-slip rubber posts 2 are parallel to each other. When the packaging bag body 1 is folded, the anti-slip rubber posts 2 are engaged with the fixing buckles 10. When the packaging bag is not in use, it can be folded using the folding groove 5. First, fold the packaging bag along the direction of the folding groove 5 to reduce the volume of the packaging bag. After folding, the anti-slip rubber posts 2 will engage with the fixing buckles 10 to prevent the folded packaging bag from unfolding. At the same time, the anti-slip rubber posts 2 provide anti-slip protection for the bottom of the packaging bag body 1, making the packaging bag body 1 more stable when placed. Plastic threaded posts 11 are installed on both the front and rear sides of the packaging bag body 1. Connecting strips 12 are fitted onto the plastic threaded posts 11. Adjusting screws 13 are installed on the plastic threaded posts 11. A first Velcro hook 14 is installed on the side of the front connecting strip 12 opposite to the packaging bag body 1. A first hook and loop fastener 15 is installed on the side of the side connecting strip 12 opposite to the packaging bag body 1. A second hook and loop fastener 16 and a second hook and loop hook fastener 17 are respectively installed on the front and rear sides of the packaging bag body 1. The adjusting screw 13 is threadedly connected to the plastic threaded post 11. The height of the plastic threaded post 11 is greater than the height of the fixing buckle 10. When a large object is placed inside the packaging bag body 1 and does not need to be sealed, the first hook and loop fastener 14 on the front connecting strip 12 is separated from the second hook and loop fastener 16, and the second hook and loop fastener 16 on the rear connecting strip 12 is separated from the second hook and loop fastener 17. Then, the connecting strips 12 on the front and rear sides are rotated upwards, so that the first hook and loop fastener 14 and the second hook and loop fastener 16 on the front and rear connecting strips 12 are stuck together. Under the action of the connection of the front and rear connecting strips 12, the sealing area 6 is tightened, thereby preventing large materials from being discharged from the packaging bag body 1.
[0034] Working principle: When using this double-sealed packaging bag, firstly, the items to be packaged are placed into the opening of the packaging bag body 1. Then, by pressing the second pressing sealing strip assembly 8 in the sealing area 6, the sealing strip is tightly fitted to complete the initial seal and prevent the items from accidentally spilling out during transportation. Next, the first pressing sealing strip assembly 7 is pressed to perform a secondary seal, further enhancing the sealing performance of the packaging bag and ensuring the stability of the internal environment. Especially for items with high sealing requirements, such as food and medicine, it can effectively extend their shelf life.
[0035] When the packaging bag is idle, it can be folded using the folding groove 5. First, fold the packaging bag along the direction of the folding groove 5 to reduce the volume of the packaging bag. After folding, the anti-slip rubber post 2 will engage with the fixing buckle 10 to prevent the folded packaging bag from spreading out. At the same time, the anti-slip rubber post 2 plays an anti-slip role on the bottom of the packaging bag body 1, making the packaging bag body 1 more stable when placed.
[0036] When small, bulk materials are placed inside the packaging bag body 1, the threaded cap 4 can be removed during material removal, allowing the material inside the packaging bag body 1 to be discharged through the threaded hollow column 3, making the process more convenient and faster. This completes a series of tasks. Contents not described in detail in this specification are prior art known to those skilled in the art.
[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A package of the double-seal structure, comprising a package body (1), characterized in that: The lower surface of the packaging bag body (1) is provided with anti-skid rubber columns (2) on both sides, the right side of the packaging bag body (1) is provided with a threaded hollow column (3), the threaded hollow column (3) is provided with a threaded cover (4), the front surface of the packaging bag body (1) is provided with a folding groove (5), the upper side of the packaging bag body (1) is provided with a sealing area (6), the inside of the sealing area (6) is sequentially provided with a first pressing sealing strip assembly (7) and a second pressing sealing strip assembly (8) from top to bottom. The front surface of the packaging bag body (1) is provided with fixed buckles (10) on both sides, the front and rear sides of the packaging bag body (1) are provided with plastic threaded columns (11), the plastic threaded columns (11) are provided with connecting strips (12), the plastic threaded columns (11) are provided with adjusting screw pieces (13), the opposite side of the connecting strip (12) on the front side relative to the packaging bag body (1) is provided with a first magic tape hook surface (14), the opposite side of the connecting strip (12) on the rear side relative to the packaging bag body (1) is provided with a first magic tape rough surface (15), the front and rear sides of the packaging bag body (1) are respectively provided with a second magic tape rough surface (16) and a second magic tape hook surface (17).
2. The dual-seal structure packaging bag according to claim 1, characterized by: The surface of the threaded cover (4) is provided with anti-skid lines, and the threaded cover (4) is threadedly connected with the threaded hollow column (3).
3. The dual-seal structure packaging bag according to claim 2, characterized by: The threaded hollow column (3) is connected with the inside of the packaging bag body (1), and the threaded hollow column (3) is fixedly connected with the packaging bag body (1).
4. The dual-seal structure packaging bag according to claim 1, characterized by: The front and rear sides of the packaging bag body (1) are provided with handle assemblies (9), and the handle assemblies (9) are fixedly connected with the packaging bag body (1).
5. The dual-seal structure packaging bag according to claim 1, characterized by: The first pressing sealing strip assembly (7) and the second pressing sealing strip assembly (8) are parallel to each other, and the first pressing sealing strip assembly (7) and the second pressing sealing strip assembly (8) are fixedly connected with the inside of the packaging bag body (1).
6. The dual-seal structure packaging bag according to claim 1, characterized by: The fixed buckles (10) are parallel to the anti-skid rubber columns (2), and when the packaging bag body (1) is folded, the anti-skid rubber columns (2) are clamped with the fixed buckles (10).
7. The dual-seal structure packaging bag according to claim 1, characterized by: The adjusting screw pieces (13) are threadedly connected with the plastic threaded columns (11), and the height of the plastic threaded columns (11) is greater than the height of the fixed buckles (10).
Citation Information
Patent Citations
Packaging bag with repeated sealing structure
CN214190792U