A large capacity paper packaging bag with expandable side edges

Abstract

The utility model discloses a big capacity paper packaging bag with extensible side, belongs to packing material technical field, and the technical problem to be solved is that the capacity of traditional paper packaging bag is fixed, and it lacks buffering protection mechanism, and the technical scheme's gist is that: the both sides of packing bag are equipped with telescopic side bag body, and the telescopic state is fixed through adjusting mechanism, and the capacity of packaging bag is changed, the inside is equipped with elastic pre-tensioning stay to provide support, the bottom and both sides inner wall are equipped with buffer soft pad, and the top cover is equipped with sealing assembly, and the utility model makes improvement in shape and structure compared with background technology, and the technical features are that the telescopic side bag body and adjusting mechanism are designed, and the main purpose is to adapt to the packaging of different size articles, reduce material waste and article damage, and provide effective protection.

Description

Technical Field

[0001] This utility model relates to the field of packaging materials technology, and in particular to a large-capacity paper packaging bag with expandable sides. Background Technology

[0002] In the context of the booming development of logistics, retail and e-commerce industries, packaging bags, as a key auxiliary tool in the process of goods transportation and storage, have a direct impact on the protection of goods and logistics efficiency in terms of their performance and applicability. Traditional paper packaging bags are increasingly revealing their limitations when facing diverse product packaging needs. On one hand, their capacity is relatively fixed and cannot be flexibly adjusted according to the actual size of the packaged items. When packaging larger items, traditional bags often cannot meet the requirements, necessitating the search for larger bags. This not only increases packaging costs but may also lead to loose packaging due to size mismatch, affecting the safety of the goods during transportation. Conversely, when packaging smaller items, oversized bags result in material waste, and the items shifting inside the bag also pose a risk of damage. On the other hand, traditional paper packaging bags have a relatively simple structural design and lack effective cushioning and protection mechanisms. During transportation, goods are easily damaged by external forces such as collisions and compression. Especially for fragile, delicate, or high-value goods, such as electronic products and glassware, simple packaging bags cannot provide sufficient protection, increasing the probability of product damage and causing economic losses to merchants and consumers. To address the aforementioned problems, this technical solution proposes a large-capacity paper packaging bag with expandable sides to solve these issues. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of traditional paper packaging bags, such as fixed capacity and lack of cushioning and protection mechanisms, by proposing a large-capacity paper packaging bag with expandable side.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A large-capacity paper packaging bag with expandable sides includes a packaging sleeve with retractable side-mounted bags on both sides. The packaging sleeve is equipped with an adjustment mechanism connected to the retractable side-mounted bags to fix their extension / retraction state. By extending and retracting the retractable side-mounted bags, the capacity of the packaging bag can be changed to accommodate items of different sizes, reducing material waste and item damage.

[0005] In one possible design, the adjustment mechanism includes a binding assembly connected to the retractable side bag for securing the retractable side bag in its extended or retracted state.

[0006] In one possible design, the binding assembly includes a strap with hook and loop fasteners, the hook and loop fasteners including a hook and loop insert and a hook and loop nut, the hook and loop insert and the hook and loop nut being bonded by bending the strap to fix the telescopic state of the telescopic side-mounted bag.

[0007] In one possible design, two limiting rings are symmetrically fitted on the strapping, and the two limiting rings are respectively fixedly connected to both sides of the packaging bag. The strapping passes through the limiting rings to guide the movement of the strapping.

[0008] In one possible design, multiple elastic pretensioning strips are fixedly installed at equal intervals on the inner side of the retractable side-mounted bag. These elastic pretensioning strips are capable of stretching and providing support for the retractable side-mounted bag to maintain its shape stability.

[0009] In one possible design, a top cap is fixedly installed on the packaging bag, and a sealing assembly is provided on the top cap. The sealing assembly includes an adhesive fixing plate and an adhesive joint. The adhesive fixing plate is disposed on the top of the top cap, and the adhesive joint is disposed on the top of one side of the packaging bag. The packaging bag is sealed by bonding the adhesive fixing plate and the adhesive joint.

[0010] In one possible design, a bottom cushioning pad is fixedly installed on the bottom inner wall of the packaging bag, and lateral cushioning pads are fixedly installed on both sides of the inner wall of the packaging bag to cushion and protect the items.

[0011] In one possible design, the adjustment mechanism further includes a paper support frame fixedly installed on one side of the retractable side-mounted bag body, and the binding assembly is installed on the top and bottom of the paper support frame.

[0012] In one possible design, the retractable side-mounted bag is made of paper material, and the adjustment mechanism secures the retractable side-mounted bag to its extended or retracted state by binding.

[0013] In this application, when packaging items, the retractable side-mounted bag is first adjusted according to the size of the items to be packaged. Since multiple elastic pre-tensioning strips, evenly spaced and fixedly installed inside the retractable side-mounted bag, are adjustable, they change accordingly when the bag is stretched or contracted. This not only helps to expand and contract the bag but also provides support, ensuring good support and preventing deformation. After expanding or contracting the bag to the required size, the binding component in the adjustment mechanism is used to position it. The binding strap, fixedly installed on the supporting paper holder, is passed through two limiting rings. At this point, the binding strap is stretched and bent, allowing the binding strap, including the Velcro strap, to be properly secured. The Velcro fasteners and Velcro tabs are bonded together, allowing the straps to define the dimensions of the retractable side-mounted bag. The bag also secures and positions the items. The items are then placed inside the packaging sleeve and the adjusted retractable side-mounted bag. The bottom cushioning pads fixed to the inner wall of the packaging sleeve, as well as the side cushioning pads fixed to the inner walls of both sides, wrap around the items for protection. Finally, the top cap seals the packaging sleeve. The adhesive fixing plate on the top cap, close to the adhesive strip on one side of the packaging sleeve, bonds with the adhesive joint on the top side of the packaging sleeve, thus positioning the top cap and completing the sealing of the packaging sleeve.

[0014] Beneficial effects: In this utility model, the large-capacity paper packaging bag with expandable side can be sealed by the top cap after the items are placed in the packaging bag and the retractable side bag, and the adhesive strip and adhesive joint are bonded and the top cap is positioned, thereby sealing the packaging bag. In this utility model, the large-capacity paper packaging bag with expandable side can be adjusted by means of an adjustment mechanism. Since the expandable side bag body can be extended and adjusted according to the size of the packaged items, the size of the expandable side bag body can be limited by positioning the binding component after adjustment. At the same time, the items can be bound and positioned by the expandable side bag body. This utility model can adjust the size of the retractable side-mounted bag according to the size of the item, solving the problem of fixed capacity of traditional packaging bags, reducing packaging costs, and avoiding material waste and item damage; it is also equipped with bottom cushioning pads and side cushioning pads, which can provide effective protection for the item, reduce damage caused by collision and squeezing during transportation, and reduce economic losses. Attached Figure Description

[0015] Figure 1A three-dimensional schematic diagram of the top sealing and closing structure of a large-capacity paper packaging bag with expandable side, as proposed in this utility model; Figure 2 A three-dimensional schematic diagram of the top sealing and opening structure of a large-capacity paper packaging bag with expandable side, as proposed in this utility model. Figure 3 This is a three-dimensional cross-sectional view of a large-capacity paper packaging bag with expandable side, as proposed in this utility model.

[0016] In the diagram: 1. Packaging bag; 2. Telescopic side-mounted bag body; 3. Elastic pre-tensioning strip; 4. Strapping strap; 5. Positioning and fixing piece; 6. Supporting paper holder; 7. Limiting ring; 8. Hook and loop fastener; 9. Top cap; 10. Adhesive fixing plate; 11. Adhesive joint; 12. Bottom cushioning pad; 13. Side cushioning pad. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In one embodiment: Refer to Figure 1-3 A packaging bag includes a packaging sleeve 1, on both sides of which a retractable side-mounted bag body 2 is fixedly installed by adhesive or heat fusion. Multiple elastic pre-tensioning strips 3 are evenly spaced on the inner side of the retractable side-mounted bag body 2 by rivets or adhesive. The elastic pre-tensioning strips 3 are made of rubber and are inherently elastic. When the retractable side-mounted bag body 2 expands or contracts, the elastic pre-tensioning strips 3 expand or contract accordingly, providing support for the retractable side-mounted bag body 2 and ensuring it maintains good support and is not easily deformed.

[0019] A top cover 9 is glued to the packaging bag 1, and a sealing assembly is provided on the top cover 9. The adhesive fixing plate 10 of the sealing assembly is glued to the top cover 9. An adhesive strip is provided on the side of the adhesive fixing plate 10 near the packaging bag 1, and an adhesive joint 11 is provided on the top of one side of the packaging bag 1. The adhesive strip and the adhesive joint 11 are made of Velcro material that can be repeatedly pasted. After the item is placed in the packaging bag 1 and the retractable side bag 2, the top cover 9 is closed, so that the adhesive strip and the adhesive joint 11 are bonded together, and the packaging bag 1 is sealed.

[0020] The bottom inner wall of the packaging bag 1 is fixed with a bottom cushioning pad 12 by adhesive, and the inner walls on both sides are also fixed with side cushioning pads 13 by adhesive. Both the bottom cushioning pad 12 and the side cushioning pads 13 are made of sponge material. After the item is placed in the packaging bag 1, it is wrapped by the bottom cushioning pad 12 and the two side cushioning pads 13, which provides protection.

[0021] This application can be used in the field of packaging materials technology, or in other fields applicable to this application.

[0022] In another embodiment: Reference Figure 1-2 Based on the above embodiments, an improvement is made: a large-capacity paper packaging bag with expandable sides, applied in the field of packaging material technology. The packaging bag is also equipped with an adjustment mechanism. The supporting paper frame 6 of the adjustment mechanism is glued to one side of the retractable side-positioned bag body 2. Binding components are installed at the top and bottom of the supporting paper frame 6. The binding strap 4 of the binding components is fixed to the supporting paper frame 6 by adhesive or rivets. Two positioning fixing pieces 5 are symmetrically fixed to the binding strap 4 by adhesive or rivets. Both positioning fixing pieces 5 are glued to one side of the retractable side-positioned bag body 2. The two sides of the binding strap 4 extend to the two sides of the packaging sleeve 1. Two limiting rings 7 are symmetrically fitted on the binding strap 4. The two limiting rings 7 are glued to the two sides of the packaging sleeve 1 respectively. Hook and loop fasteners 8 are fixedly installed on the binding strap 4. The hook and loop fasteners 8 are glued to the binding strap 4.

[0023] Adjust the retractable side bag 2 according to the size of the packaged item, stretching or contracting it to the desired size. The elastic pre-tensioning strip 3 will then extend or retract accordingly. Pass the strapping 4 through the two limiting rings 7 and bend it to adhere the Velcro tabs. Use the strapping 4 to limit the size of the retractable side bag 2, while simultaneously securing and positioning the item. After placing the item, close the top cover 9, ensuring the adhesive strip adheres to the adhesive joint 11, completing the packaging.

[0024] 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 large-capacity paper packaging bag with expandable sides, comprising a packaging sleeve (1), characterized in that, The packaging bag (1) is provided with retractable side-mounted bags (2) on both sides. The packaging bag (1) is provided with an adjustment mechanism, which is connected to the retractable side-mounted bags (2) to fix the retractable side-mounted bags (2) in a fixed state. By extending and retracting the retractable side-mounted bags (2), the capacity of the packaging bag can be changed to accommodate items of different sizes, thereby reducing material waste and item damage.

2. The paper packaging bag according to claim 1, characterized in that, The adjustment mechanism includes a binding assembly, which is connected to the retractable side-mounted bag (2) and is used to fix the retractable side-mounted bag (2) in its retractable state.

3. The paper packaging bag according to claim 2, characterized in that, The binding assembly includes a binding strap (4), on which a hook and loop fastener (8) is provided. The hook and loop fastener (8) includes a hook and loop tab and a hook and loop tab. The hook and loop tab and the hook and loop tab are bonded by bending the binding strap (4) to fix the telescopic state of the telescopic side-mounted bag (2).

4. The paper packaging bag according to claim 3, characterized in that, Two limiting rings (7) are symmetrically fitted on the strapping (4). The two limiting rings (7) are fixedly connected to the two sides of the packaging bag (1) respectively. The strapping (4) passes through the limiting rings (7) to guide the movement of the strapping (4).

5. The paper packaging bag according to claim 1, characterized in that, Multiple elastic pretensioning strips (3) are fixedly installed at equal intervals on the inner side of the retractable side-mounted bag (2). The elastic pretensioning strips (3) can extend and retract and provide support for the retractable side-mounted bag (2) to maintain its shape stability.

6. The paper packaging bag according to claim 1, characterized in that, A top cover (9) is fixedly installed on the packaging bag (1). A sealing assembly is provided on the top cover (9). The sealing assembly includes an adhesive fixing plate (10) and an adhesive joint (11). The adhesive fixing plate (10) is located on the top cover (9), and the adhesive joint (11) is located on the top of one side of the packaging bag (1). The packaging bag (1) is sealed by the adhesive fixing plate (10) and the adhesive joint (11).

7. The paper packaging bag according to claim 1, characterized in that, Bottom cushioning pad (12) is fixedly installed on the bottom inner wall of the packaging bag (1), and side cushioning pads (13) are fixedly installed on both sides of the inner wall of the packaging bag (1) to cushion and protect the items.

8. The paper packaging bag according to claim 2, characterized in that, The adjustment mechanism also includes a paper support frame (6), which is fixedly installed on one side of the retractable side-mounted bag body (2), and the binding assembly is installed on the top and bottom of the paper support frame (6).

9. The paper packaging bag according to any one of claims 1-8, characterized in that, The retractable side-mounted bag (2) is made of paper material, and the adjustment mechanism fixes the retractable side-mounted bag (2) in a binding manner.

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