Degradable packaging bag

By designing foldable extension components and limiting structures in the packaging bag, the problem of insufficient packaging bag capacity is solved, achieving flexible storage and stable storage.

CN223778941UActive Publication Date: 2026-01-09LONGGANG HUALIAN FLEXIBLE PACKAGING CO LTD
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Patent Information

Application Number
CN202520189740.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-01-09
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Existing packaging bags have a fixed capacity, which is insufficient to meet the needs of storing a large number of items, leading to problems such as items being squeezed and falling off.

Method used

The design incorporates a foldable extension component, including a connector and an extension section, which are secured by male and female buckles to increase the capacity and stability of the packaging bag.

Benefits of technology

It enables flexible adjustment of the packaging bag capacity, improves the stability and safety of the items, and reduces the inconvenience of using multiple bags.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of packaging bags, and particularly relates to a degradable packaging bag which comprises a packaging bag body, a containing cavity capable of containing objects is formed in the packaging bag body, an extension assembly capable of extending out of the containing cavity after being folded and unfolded is further arranged on the containing cavity of the packaging bag body, and the extension assembly comprises a connecting part. The connecting part is fixed to the inner wall of the packaging bag body, an extension part capable of being folded along the connecting part is integrally formed on the connecting part, and a son buckle and a mother buckle are arranged on the two sides of the inner wall of the extension part respectively; through the structural design of the connecting part and the extension part, a user can fold and unfold the extension part according to actual needs to increase the overall containing capacity of the packaging bag body, so that the packaging bag can flexibly adapt to objects of different numbers and sizes, the inconvenience that multiple packaging bags need to be used due to insufficient capacity is greatly reduced, and the practicability is high. By designing the male buckle and the female buckle on the extension part, the bag opening can be effectively limited after articles are placed, and the situation that the articles fall off is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bags, specifically a biodegradable packaging bag. Background Technology

[0002] Biodegradable packaging bags are packaging bags that can decompose in the natural environment. Compared with traditional plastic bags, they have better environmental performance. As an indispensable packaging tool in daily life, biodegradable packaging bags play an important role in carrying and storing goods. A Chinese utility model patent (publication number: CN219383413U) discloses a rapidly degradable environmentally friendly packaging bag. It has the characteristics of being biodegradable, ensuring the load-bearing capacity of the bag body and improving its service life. At the same time, it does not use glue for connection, improving the overall integrity and facilitating subsequent degradation. This utility model improves the load-bearing capacity of the load-bearing strip by using a combination of two sets of frame lines and filling layers. It also adopts a detachable handle design to improve the service life of the handle and reduce costs.

[0003] However, existing packaging bags are often fixed in size and have limited internal capacity. While the fixed capacity design can meet basic packaging needs in most cases, it still has some shortcomings in actual use. Specifically, when a lot of items are put into the packaging bag, the items are often over-compressed due to the limited capacity of the packaging bag. This may not only cause damage to the items, but also make them prone to falling out during carrying. Therefore, a biodegradable packaging bag is proposed to address the above issues. Utility Model Content

[0004] To address the limitation of existing packaging bags in terms of capacity, which makes it difficult to store a large number of items, this invention proposes a biodegradable packaging bag.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a biodegradable packaging bag, including a packaging bag body, the packaging bag body having a storage cavity for holding objects, and an extension component that can be folded open and extended out of the storage cavity on the storage cavity of the packaging bag body. The extension component includes a connecting part, the connecting part is fixed to the inner wall of the packaging bag body, and an extension part that can be folded along the connecting part is integrally formed on the connecting part. A male buckle and a female buckle are respectively provided on both sides of the inner wall of the extension part.

[0006] As a preferred option, handles are provided on both sides of the outer wall of the main body of the packaging bag, and the handles are made of nylon material.

[0007] Preferably, a rubber sleeve with anti-slip texture is provided in the middle of the handle.

[0008] Preferably, the connecting part, the extension part, and the main body of the packaging bag are made of the same material, and the connecting part and the extension part are both rectangular frame structures when unfolded.

[0009] Preferably, the bottom of the connecting part is provided with a reinforcing rib, which is fixedly connected to the inner wall of the main body of the packaging bag.

[0010] Preferably, there are multiple reinforcing ribs arranged in a rectangular array within the storage cavity of the main body of the packaging bag.

[0011] Preferably, openings are provided on both sides of the extension.

[0012] Preferably, there are at least four male and four female buckles, both of which are made of plastic.

[0013] The advantages of this utility model are:

[0014] 1. Through the structural design of the connecting part and the extension part, the user can fold and unfold the extension part according to actual needs to increase the overall capacity of the main body of the packaging bag, so that the packaging bag can flexibly adapt to items of different quantities and volumes, greatly reducing the inconvenience of needing to use multiple packaging bags due to insufficient capacity;

[0015] 2. By designing male and female buckles on the extension, this utility model can effectively limit the bag opening after the item is placed, thereby improving the stability of the item after placement, preventing the item from falling, and improving the practicality and safety of the packaging bag.

[0016] 3. By designing reinforcing ribs at the bottom of the connecting part, and connecting the reinforcing ribs to the side and bottom surfaces of the inner wall of the main body of the packaging bag, this utility model can improve the tensile strength of the extension part when the user picks up the packaging bag through the opening, and reduce the possibility of deformation and damage to the extension part. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0018] Figure 1 This is a structural diagram of the packaging bag;

[0019] Figure 2 This is a schematic diagram of the extended component after it has been unfolded.

[0020] Figure 3 A schematic diagram of the assembly structure for extending the components;

[0021] Figure 4 This is a schematic diagram of the extension section.

[0022] In the diagram: 1. Main body of the packaging bag; 101. Handle; 2. Extension component; 201. Connecting part; 202. Reinforcing rib; 203. Extension part; 204. Female buckle; 205. Female buckle; 206. Opening. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0025] This application discloses a biodegradable packaging bag. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A biodegradable packaging bag includes a main body 1 with a storage cavity for holding objects. The storage cavity of the main body 1 is also provided with an extension component 2 that can be folded open and extended out of the storage cavity. The extension component 2 includes a connecting part 201, which is fixed to the inner wall of the main body 1. An extension part 203 is integrally formed on the connecting part 201 and can be folded along the connecting part 201. After folding open the extension part 203, the overall capacity of the main body 1 can be increased, so that the packaging bag can flexibly adapt to different quantities and volumes of items, greatly reducing the inconvenience of needing to use multiple packaging bags due to insufficient capacity. The inner walls of the extension part 203 are respectively provided with a male buckle 204 and a female buckle 205.

[0026] Reference Figure 1 , Figure 2 and Figure 3 Both sides of the outer wall of the main body 1 of the packaging bag are provided with handles 101. The handles 101 are made of nylon material and a rubber sleeve is provided in the middle of the handles 101. The rubber sleeve has anti-slip texture.

[0027] In normal use, the handle 101 makes it easy to pick up the main body of the packaging bag 1. The handle 101, made of nylon material, has stronger tensile strength and a longer service life. The rubber sleeve improves the user's comfort when carrying it.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The connecting part 201, the extension part 203 and the main body of the packaging bag 1 are made of the same material. The connecting part 201 and the extension part 203 are both rectangular frame structures after being unfolded. Openings 206 are provided on both sides of the extension part 203.

[0029] The connecting part 201, the extension part 203 and the main body of the packaging bag 1 are all made of PLA (polylactic acid), which is processed from natural raw materials such as corn and cassava. It can be rapidly degraded in the natural environment and will not cause pollution.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The bottom of the connecting part 201 is provided with a reinforcing rib 202, which is fixedly connected to the inner wall of the main body 1 of the packaging bag. There are multiple reinforcing ribs 202, which are distributed in a rectangular array in the storage cavity of the main body 1 of the packaging bag.

[0031] Among them, the reinforcing rib 202 is strip-shaped and its material can also be PLA (polylactic acid). The reinforcing rib 202 is connected to the side and bottom of the inner wall of the main body of the packaging bag 1, which can improve the tensile strength of the extension 203 when the user picks up the packaging bag through the opening 206 and reduce the possibility of deformation and damage to the extension 203.

[0032] Reference Figure 2 , Figure 3 and Figure 4 There are at least four male buckles 204 and four female buckles 205, and both male buckles 204 and female buckles 205 are made of plastic.

[0033] The snap fastener consists of a male snap 204 and a female snap 205. When in use, after an item is placed in the bag, the male snap 204 and female snap 205 work together to effectively limit the bag opening, thereby improving the stability of the item and preventing it from falling out. This enhances the practicality and safety of the packaging bag.

[0034] Working principle: In normal use, the user can lift the main body of the packaging bag 1 by passing their hand through the handle 101. When more items need to be put in, the user passes their hand through the opening 206 and folds the extension 203 along the crease where it connects to the connecting part 201 towards the outside of the storage cavity of the main body of the packaging bag 1. Figure 2 As shown, the extended portion 203 after folding and unfolding can increase the overall capacity of the main body 1 of the packaging bag, so that the packaging bag can flexibly adapt to items of different quantities and sizes, greatly reducing the inconvenience of needing to use multiple packaging bags due to insufficient capacity.

[0035] After the items are packed, the male buckle 204 and female buckle 205 can be pressed together as needed. Then, the user can put their hand through the opening 206 and lift the entire bag.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A biodegradable packaging bag, comprising a packaging bag body (1), wherein the packaging bag body (1) has a storage cavity for accommodating objects, characterized in that: The main body (1) of the packaging bag is also provided with an extension component (2) that can be folded open and extended out of the storage cavity. The extension component (2) includes a connecting part (201), which is fixed to the inner wall of the main body (1) of the packaging bag. An extension part (203) that can be folded along the connecting part (201) is integrally formed on the connecting part (201). A female buckle (204) and a female buckle (205) are respectively provided on both sides of the inner wall of the extension part (203).

2. The biodegradable packaging bag according to claim 1, characterized in that: The packaging bag body (1) has handles (101) on both sides of its outer wall, and the handles (101) are made of nylon material.

3. The biodegradable packaging bag according to claim 2, characterized in that: A rubber sleeve is provided at the middle of the handle (101), and the rubber sleeve has anti-slip texture.

4. The biodegradable packaging bag according to claim 1, characterized in that: The connecting part (201), the extension part (203) and the main body of the packaging bag (1) are made of the same material. The connecting part (201) and the extension part (203) are both rectangular frame structures after being unfolded.

5. A biodegradable packaging bag according to claim 4, characterized in that: The bottom of the connecting part (201) is provided with a reinforcing rib (202), and the reinforcing rib (202) is fixedly connected to the inner wall of the main body of the packaging bag (1).

6. A biodegradable packaging bag according to claim 5, characterized in that: The reinforcing ribs (202) are multiple in number and are arranged in a rectangular array within the storage cavity of the main body of the packaging bag (1).

7. A biodegradable packaging bag according to claim 4, characterized in that: Openings (206) are provided on both sides of the extension (203).

8. A biodegradable packaging bag according to claim 1, characterized in that: The number of the male buckle (204) and female buckle (205) is at least four, and both the male buckle (204) and female buckle (205) are made of plastic.

Citation Information

Patent Citations

  • Environment-friendly packaging bag capable of being quickly degraded

    CN219383413U