A vacuum bag with double-layer sealing edge
By setting double-layer sealing and a three-dimensional structure at the edge of the vacuum bag, the problem of unreasonable stacking of vacuum bags is solved, achieving more efficient space utilization and structural strength, and making it convenient for storing clothes and bedding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIXI VIRTUE
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-19
AI Technical Summary
Conventional vacuum bags, after being vacuumed, form a bulge in the middle and thin flakes at the edges, resulting in improper stacking and wasted storage space.
Design a vacuum bag with double-sealed edges to form a three-dimensional structure. The height is increased by the side structure, and the twelve double-sealed edges increase the strength. The bag uses a sealing zipper and crease structure to facilitate stacking and unfolding.
The vacuum bags can be stacked in a reasonable way, which improves the utilization of storage space, enhances structural strength, and makes it easier to store clothes and bedding.
Smart Images

Figure CN224376399U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum storage bag technology, and in particular to a vacuum bag with double-layer sealing edges. Background Technology
[0002] Conventional vacuum bags are mainly used to store highly fluffy items such as clothing and quilts. These vacuum bags are typically made of double-layered film, with the edges of the film sealed by heat fusion, forming a hollow bag structure. One side of the bag structure has an opening for installing a sealing chain, and the bag structure also has an air valve structure for vacuuming. One problem with this type of vacuum bag is that after storing items and vacuuming, the bag will form an irregular shape with a bulge in the middle and thin, sheet-like edges. When multiple vacuum-sealed bags are stored in one space, they will be stacked irrationally, making inefficient use of storage space and resulting in wasted storage space. To solve the above technical problems, the vacuum bag needs to be modified. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a vacuum bag with double-layer sealing at the edges, which has the characteristics of being easy to stack when used and improving the utilization rate of storage space.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a vacuum bag with double-layer sealing edge is provided, including end face structure, side structure and vacuum valve. The end face structure consists of two pieces arranged side by side. The two end face structures are connected by four side structures to form a three-dimensional bag structure. The three-dimensional bag structure has twelve double-layer sealing edges. The double-layer sealing edges are formed by hot-melting the superimposed edges of adjacent end face structures and side structures or the edges of two adjacent side structures. A sealing zipper is installed between adjacent end face structures and side structures. A vacuum valve is installed on the end face structure or side structure. At least one inwardly concave crease structure is provided in the middle of the side structure.
[0005] This technical solution uses a side structure to increase the height of the vacuum bag's edge, allowing it to form a three-dimensional structure with a certain thickness after vacuuming. This facilitates stacking during storage and makes efficient use of storage space. Twelve double-layered sealing edges are used to increase the structural strength of the edges, enabling the vacuum bag to be fully unfolded when not vacuumed. When fully unfolded, the twelve double-layered sealing edges act as support ribs, allowing users to easily stuff in more clothing and bedding. A sealing zipper facilitates opening the sealed bag, and a folding structure facilitates folding, allowing the sealed bag to form a thin sheet structure when not in use.
[0006] As a supplement to this technical solution, the sealing zipper adopts a double-sealing zipper structure, which is used to improve the sealing effect.
[0007] As a supplement to this technical solution, the end face structure and the side structure both adopt a double-layer film structure. The outer layer of film is made of fiber textile to form a woven film, and the inner layer of film is made of blown film. The woven film has a certain stress and is not easy to tear, while the blown film has good flexibility, low cost and is convenient for overall storage.
[0008] As a supplement to this technical solution, docking feet are heat-fused at the four corners of one of the end face structures. By designing docking feet, it is convenient for this device to dock with suitcases or backpacks.
[0009] As a supplement to this technical solution, both ends of the side structure are provided with folded corner structures. The folded corner structures are triangular in shape, with oblique lines extending to the ends of the crease structures on both sides. The middle part of the folded corner structure is provided with a central fold line that is flush with the crease structure.
[0010] Beneficial effects: This utility model relates to a vacuum bag with double-layered sealing edges. By setting a side structure to increase the height of the vacuum bag's edges, the structure can form a three-dimensional structure with a certain thickness after vacuuming, which is convenient for stacking when storing and makes reasonable use of storage space. The twelve double-layered sealing edges are set to increase the structural strength of the edges, so that the vacuum bag can be fully unfolded when not vacuumed. When fully unfolded, the twelve double-layered sealing edges can act as support ribs, making it convenient for users to stuff more clothes, bedding, etc. The installation of a sealing zipper makes it easy to open the sealed bag, and the setting of a folding structure makes it easy to fold the sealed bag, so that the sealed bag forms a thin sheet structure when not in use. It has the characteristics of convenient stacking when in use and improving the utilization rate of storage space. Attached Figure Description
[0011] Figure 1 This is a structural view of the present invention;
[0012] Figure 2 This is a structural view of the present invention when opened;
[0013] Figure 3 This is a structural view of the present invention after the connecting legs are installed;
[0014] Figure 4 This is a schematic diagram of the utility model after the items are packed in.
[0015] Illustrations: 1. End face structure, 2. Side structure, 3. Vacuum valve, 4. Crease structure, 5. Twelve double-layer edge banding, 6. Sealing zipper, 7. Butt joint support, 8. Corner structure, 9. Middle crease. Detailed Implementation
[0016] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0017] The present invention relates to a vacuum bag with double-layered sealing at the edges, such as... Figure 1 — Figure 4 As shown, it includes an end face structure 1, a side structure 2, and a vacuum valve 3. The end face structure 1 consists of two pieces arranged side by side. The two end face structures 1 are joined together by four side structures 2 to form a three-dimensional bag-like structure. The three-dimensional bag-like structure has twelve double-layer sealing edges 5. The double-layer sealing edges 5 are formed by superimposing and hot-melting the edges of adjacent end face structures 1 and the edges of side structures 2 or the edges of two adjacent side structures 2. A sealing zipper 6 is installed between adjacent end face structures 1 and side structures 2. A vacuum valve 3 is installed on the end face structure 1 or the side structure 2. At least one inwardly concave crease structure 4 is provided in the middle of the side structure 2.
[0018] In this technical solution, the side structure 2 is used to increase the height of the vacuum bag's edge, so that after vacuuming, the structure can form a three-dimensional structure with a certain thickness, which is convenient for stacking during storage and makes reasonable use of storage space. The twelve double-layer sealing edges 5 are used to increase the structural strength of the edge, so that the vacuum bag can be fully unfolded when not vacuumed. When fully unfolded, the twelve double-layer sealing edges 5 can act as a support rib, making it convenient for users to stuff more clothes and bedding, etc. The sealing zipper 6 is installed to facilitate opening the sealed bag, and the folding structure 4 is set to facilitate folding the sealed bag, so that when the sealed bag is not in use, it forms a sheet-like structure.
[0019] As a supplement to this technical solution, the sealing zipper 6 adopts a double-sealing zipper structure, which is used to improve the sealing effect.
[0020] As a supplement to this technical solution, both the end face structure 1 and the side structure 2 adopt a double-layer film structure. The outer layer of film is made of fiber textile to form a woven film, and the inner layer of film is made of blown film. The woven film has a certain stress and is not easy to tear, while the blown film has good flexibility, low cost and is convenient for overall storage.
[0021] As a supplement to this technical solution, docking feet 7 are heat-fused at the four corners of one of the end face structures 1. By designing docking feet 7, it is convenient for this device to dock with suitcases or backpacks.
[0022] As a supplement to this technical solution, both ends of the side structure 2 are provided with angled structures 8. The angled structures 8 are triangular, with oblique lines extending to the ends of the crease structure 4 on both sides. The middle of the angled structure 8 is provided with a central fold line 9 that is flush with the crease structure 4.
[0023] In this technical solution, the corner structure 8 is set to facilitate the folding and storage of the side structure 2, so that the entire vacuum bag can be folded to form a thin sheet product, which can be folded and stored again, making it convenient and economical to store the vacuum bag.
[0024] Example
[0025] When using this structure, first open the sealing zipper 6 to create an opening in the bag. Then unfold the entire vacuum-sealed bag. Because this structure has twelve double-layered sealing edges 5, these edges can stand upright on the ground or table. After that, the user can stuff clothes or bedding into the sealed bag through the opening, then close the sealing zipper 6. Finally, use the vacuum valve 3 to remove the air from inside. After completion, the vacuum bag will become a rectangular "tofu block" shape. Because the vacuum bag is in a rectangular "tofu block" shape, it is convenient to stack multiple vacuum bags together, making it easy to concentrate and fill the storage space efficiently, thus saving storage space.
[0026] When the vacuum bag is not in use and needs to be stored, first open the entire vacuum bag through the sealing zipper 6, then take out the clothes or bedding inside the vacuum bag, and then squeeze the entire vacuum bag to form a thin sheet bag. At this time, the folding structure 8 is first folded in half through the middle fold line 9, and at the same time, the diagonal lines on both sides of the folding structure 8 can also facilitate the folding of the ends of the side structure 2. Then the thin sheet bag can be folded multiple times again for easy storage in a very small volume.
Claims
1. A vacuum bag with double-layered sealing at the edges, characterized in that: It includes an end face structure (1), a side structure (2), and a vacuum valve (3). The end face structure (1) consists of two pieces arranged side by side. The two end face structures (1) are connected by four side structures (2) to form a three-dimensional bag-shaped structure. The three-dimensional bag-shaped structure has twelve double-layer sealing edges (5). The double-layer sealing edges (5) are formed by hot-melting the edges of adjacent end face structures (1) and the edges of side structures (2) or the edges of two adjacent side structures (2). A sealing zipper (6) is installed between adjacent end face structures (1) and side structures (2). A vacuum valve (3) is installed on the end face structure (1) or the side structure (2). At least one inwardly concave crease structure (4) is provided in the middle of the side structure (2).
2. A vacuum bag with double-layered sealing at the edges according to claim 1, characterized in that: The sealing zipper (6) adopts a double sealing zipper structure.
3. A vacuum bag with double-layered sealing at the edges according to claim 1, characterized in that: The end face structure (1) and the side structure (2) both adopt a double-layer film structure. The outer layer of film is a woven film formed by fiber weaving, and the inner layer of film is a blown film.
4. A vacuum bag with double-layered sealing at the edges according to claim 1, characterized in that: One of the end face structures (1) has butt joint feet (7) heat-fused at the four corners.
5. A vacuum bag with double-layered sealing at the edges according to claim 1, characterized in that: Both ends of the side structure (2) are provided with folded corner structures (8). The folded corner structure (8) is triangular, with oblique lines extending to the ends of the crease structure (4) on both sides. The middle part of the folded corner structure (8) is provided with a middle fold line (9) that is flush with the crease structure (4).