Expansion garbage bag

By designing reinforcing strips and ribs with a mesh structure on the garbage bag, combined with hot-melt molding and continuous pleats, directional expansion and structural stability of the garbage bag are achieved, solving the problem of unstable expansion of traditional garbage bags.

CN224118029UActive Publication Date: 2026-04-14DONGGUAN KAIJIN PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional garbage bags have uncontrollable expansion direction and insufficient structural strength, leading to irregular deformation and breakage.

Method used

An expanded garbage bag with a mesh structure featuring multiple parallel reinforcing strips and ribs was designed and integrally molded using a hot-melt method to ensure directional extension of the expanded deformation zone, and a continuous pleated structure was set within the expanded deformation zone.

Benefits of technology

It achieves targeted expansion of garbage bags, enhances structural stability and load-bearing capacity, avoids irregular deformation and breakage, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of garbage bags, and particularly relates to an expansion garbage bag which comprises a bag body, a plurality of parallel reinforcing belts are arranged on the bag body, an expansion deformation area is defined by the reinforcing belts, and the expansion deformation area extends directionally to enable the bag body to be enlarged directionally. Due to the fact that the expansion deformation area capable of extending directionally is arranged on the bag body, it is guaranteed that the garbage bag extends in the preset direction after being stretched to increase the overall volume, and irregular deformation and fracture caused by random extension of the bag body are avoided; the multiple parallel reinforcing belts support the bag body, the bearing capacity and the structural strength of the garbage bag are improved, the shape of the expanded garbage bag can be maintained, and the good structural stability of the expanded garbage bag can still be kept.
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Description

Technical Field

[0001] This utility model belongs to the field of garbage bag technology, and in particular relates to an expandable garbage bag. Background Technology

[0002] Traditional garbage bags have a fixed capacity. When the amount of garbage exceeds the bag's capacity, it easily leads to overflow or bag breakage, affecting user experience and environmental hygiene. While some existing technologies offer expandable garbage bag designs, most rely on simple stretching or the bag itself has some elasticity. This results in limited expansion effectiveness and random expansion direction, leading to unstable structural strength and susceptibility to irregular deformation and breakage after expansion. Therefore, a garbage bag that can expand in a directional manner according to the amount of garbage and has a stable structure is needed. Utility Model Content

[0003] The purpose of this utility model is to provide an expandable garbage bag that solves the problems of uncontrollable expansion direction and insufficient structural strength of existing garbage bags, which lead to irregular deformation and breakage.

[0004] To achieve the above objectives, this utility model provides an expandable garbage bag, including a bag body, on which multiple parallel reinforcing bands are provided, and an expandable deformation area formed by the reinforcing bands. The expandable deformation area can be directionally extended, thereby increasing the size of the bag body in a specific direction.

[0005] Furthermore, the bag body is also provided with multiple parallel reinforcing ribs in another direction, and the reinforcing ribs and the reinforcing strips are interconnected to form a mesh structure, and the expansion deformation zone is located within the mesh structure; the reinforcing strips and reinforcing ribs are elastic.

[0006] Furthermore, the reinforcing strips and reinforcing ribs are distributed at equal intervals on the bag body.

[0007] Furthermore, the reinforcing strip and reinforcing rib are integrally formed on the bag body by hot melting.

[0008] Furthermore, the expansion deformation zone is provided with a continuous fold structure.

[0009] Furthermore, the bag body has a single-layer or multi-layer film structure.

[0010] Furthermore, the area of ​​one side of the bag increases by 1 / 3 after directional expansion.

[0011] The above-mentioned technical solutions of one or more of the expanded-capacity garbage bags provided in this embodiment of the utility model have at least the following technical effects:

[0012] Because the bag has a directionally extendable expansion deformation zone, it can be stretched to ensure that the garbage bag extends in a predetermined direction to increase the overall volume, thus avoiding irregular deformation and breakage caused by random extension of the bag. Multiple parallel reinforcing strips provide support for the bag, increasing the load-bearing capacity and structural strength of the garbage bag, helping to maintain the shape after expansion, and ensuring that the garbage bag can still maintain good structural stability after expansion. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A partial structural schematic diagram of the expanded garbage bag provided in this embodiment of the utility model.

[0015] Figure 2 This is a partial extension structural diagram of the expanded garbage bag provided in an embodiment of the present utility model.

[0016] Figure 3 The expanded garbage bag provided in this embodiment of the utility model Figure 2 A further extended structural diagram.

[0017] Figure 4 The final structural diagram of the fully extended expanded garbage bag provided in this embodiment of the utility model.

[0018] In the diagram, 10 is the bag body, 11 is the reinforcing strip, 12 is the expansion deformation zone, 13 is the reinforcing rib, and 14 is the pleat. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0023] In one embodiment of the expanded-capacity garbage bag of this utility model, please refer to... Figures 1 to 4 The expandable garbage bag includes a bag body 10, with multiple parallel reinforcing bands 11 and an expansion deformation zone 12 formed by the reinforcing bands 11. The expansion deformation zone 12 can extend in a specific direction, causing the bag body 10 to increase in a specific direction. Specifically, because the bag body 10 has an expandable deformation zone 12 that can extend in a specific direction, after stretching, the garbage bag is guaranteed to extend in a predetermined direction to increase the overall volume, avoiding irregular deformation and breakage caused by random extension of the bag body 10. The multiple parallel reinforcing bands 11 provide support for the bag body 10, increasing the load-bearing capacity and structural strength of the garbage bag, helping to maintain the shape after expansion, so that the garbage bag can still maintain good structural stability after expansion.

[0024] Furthermore, the bag body 10 is also provided with multiple parallel reinforcing ribs 13 in another direction. The reinforcing ribs 13 and the reinforcing strips 11 are intersected and connected to form a mesh structure, and the expansion deformation zone 12 is located within the mesh structure. The reinforcing strips 11 and the reinforcing ribs 13 are elastic. Specifically, the expansion deformation zone 12 is located within the mesh structure, with its outer periphery connected to the reinforcing strips 11 and the reinforcing ribs 13, further enhancing the overall structural strength of the expansion deformation zone 12. Because the reinforcing strips 11 and the reinforcing ribs 13 are elastic, when the expansion deformation zone 12 is directionally extended, the reinforcing strips 11 and the reinforcing ribs 13 work together to stretch, so that the expansion deformation zone 12 remains stable after extension, thereby enhancing the stability of the bag body 10. It can be designed to expand the garbage bag in any direction as needed, improving the utilization rate.

[0025] Furthermore, the reinforcing strips 11 and reinforcing ribs 13 are evenly distributed on the bag body 10. Specifically, the equally spaced reinforcing strips 11 and reinforcing ribs 13 ensure that the expansion deformation zone 12 has the same area and is evenly distributed on the bag body 10, ensuring stable directional expansion of the bag body 10 and preventing uneven stress on the bag body 10 during expansion, which could lead to breakage at local weak points. Reinforcing strips 11 and reinforcing ribs 13 with different spacing and angles can also be designed to obtain garbage bags with different structural strengths and expansion effects, as well as improve aesthetics.

[0026] Furthermore, the reinforcing strip 11 and reinforcing rib 13 are integrally formed onto the bag body 10 by heat fusion. Specifically, the reinforcing strip 11 and reinforcing rib 13 formed by heat fusion can reduce the elastic shrinkage after the garbage bag is expanded, maintain the expanded capacity and state; and prevent the bag body 10 from cracking by strengthening local areas, thereby reducing material waste.

[0027] Furthermore, the expansion and deformation zone 12 is provided with a continuous pleated structure 14. Specifically, the pleat 13 design can effectively increase the volume of the garbage bag and can be adapted to various garbage bins; and the unfolding direction of the pleats 13 is the extension direction of the expansion and deformation zone 11, ensuring that the bag body 10 expands in a preset direction when expanding, avoiding the bag body 10 becoming too thin during expansion, and the pleats 13 enhance the structural thickness of the garbage bag when not unfolded to prevent tearing.

[0028] Furthermore, the bag body 10 has a single-layer or multi-layer film structure. Specifically, garbage bags with different load-bearing capacities are formed by using films of different numbers and thicknesses to meet various usage needs. Preferably, the film can be made of a highly elastic material to enhance the toughness of the bag body 10, making it resistant to stretching and not easily torn.

[0029] Furthermore, the area of ​​one side of the bag 10 increases by 1 / 3 after directional expansion. Specifically, after directional stretching and expansion deformation zone 11, the surface area of ​​the bag 10 increases by 1 / 3 compared to the original, increasing the volume of garbage in the garbage bag and preventing garbage from overflowing or the bag 10 from bursting.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An expandable garbage bag, characterized in that, The bag includes a bag body with multiple parallel reinforcing bands and an expansion deformation zone formed by the reinforcing bands. The expansion deformation zone extends in a specific direction, causing the bag body to increase in size in a specific direction. The bag body also has multiple parallel reinforcing ribs in another direction. The reinforcing ribs and the reinforcing bands intersect and connect to form a mesh structure. The expansion deformation zone is located within the mesh structure. The reinforcing bands and reinforcing ribs are elastic.

2. The expanded-capacity garbage bag according to claim 1, characterized in that: The reinforcing strips and reinforcing ribs are distributed at equal intervals on the bag body.

3. The expanded-capacity garbage bag according to claim 1, characterized in that: The reinforcing strip and reinforcing rib are integrally formed on the bag body by hot melting.

4. The expanded-capacity garbage bag according to any one of claims 1 to 3, characterized in that: The expansion deformation zone is provided with a continuous fold structure.

5. The expanded-capacity garbage bag according to any one of claims 1 to 3, characterized in that: The bag body is a single-layer or multi-layer film structure.

6. The expanded-capacity garbage bag according to claim 1, characterized in that: The area of ​​one side of the bag increases by 1 / 3 after directional expansion.