A paper-plastic packaging structure

By designing the limiting protrusions and buffer protrusions in the paper-plastic packaging structure and making them interlocking, the problem that paper-plastic packaging cannot cover columnar products and adapt to different sizes is solved, achieving flexible covering and transportation advantages.

CN224376306UActive Publication Date: 2026-06-19ZHUHAI YUNMAI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI YUNMAI TECH CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing paper-plastic packaging structures cannot effectively cover roughly cylindrical products and cannot adapt to products of different sizes and specifications; the integral rigid shell structure cannot be changed.

Method used

Design a paper-plastic packaging structure in which adjacent paper-plastic bodies are connected by a thinning section. The special design of the limiting protrusion and the buffer protrusion allows the paper-plastic bodies to interlock and fit together, achieving self-locking and wrapping, and adapting to products of different shapes and sizes.

🎯Benefits of technology

It enables wrapping around products of different sizes, reducing storage space requirements, facilitating transportation and use, and providing versatility and flexibility.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224376306U_ABST
    Figure CN224376306U_ABST
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Abstract

The utility model discloses a paper plastic packaging structure, including the paper plastic body of multiple paper plastic body of setting in a row, two adjacent paper plastic body are connected through the thinning portion, the paper plastic body includes the bottom plate, the top surface of bottom plate is equipped with first limit bulge respectively in both ends, and the first limit bulge between two forms the limit slot, and the first limit bulge is the hollow casing of bottom intercommunication outside, the bottom surface of bottom plate is equipped with a plurality of buffer bulge, and the buffer bulge is the hollow casing of top intercommunication outside. This paper plastic packaging structure novel structure, can to the product around the coating, is favorable to improve the packing effect, and the thinning portion is more likely to break, and the user can select the paper plastic packaging structure of suitable length to intercept to pack small size product, and this paper plastic packaging structure has very strong versatility, and can do the buffer packing to the product of different size specifications, and this paper plastic packaging structure still has the advantage that transports conveniently.
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Description

Technical Field

[0001] This utility model relates to the field of product packaging technology, and in particular to a paper-plastic packaging structure. Background Technology

[0002] Currently, EPS foam cushioning packaging is the most commonly used cushioning packaging for general products. However, EPS foam is non-degradable, causing significant white pollution, and EPS itself emits a pungent odor, which can be harmful to human health. With the advancement of plastic bans, EPS foam cushioning packaging is gradually being replaced by paper-plastic cushioning packaging.

[0003] Existing paper-plastic packaging is generally a one-piece rigid shell structure. This one-piece rigid shell structure cannot effectively cover products that are roughly cylindrical. Moreover, once the one-piece rigid shell structure is formed, it cannot be changed, and it cannot package products of various different sizes and specifications. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a versatile paper-plastic packaging structure that can wrap around a product.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a paper-plastic packaging structure, comprising a plurality of paper-plastic bodies arranged in a row, with adjacent two paper-plastic bodies connected by a thinning section, each paper-plastic body including a base plate, with first limiting protrusions at both ends of the top surface of the base plate, and a limiting groove formed between two first limiting protrusions, each first limiting protrusion being a hollow shell with its bottom connected to the outside, and a plurality of buffer protrusions on the bottom surface of the base plate, each buffer protrusion being a hollow shell with its top connected to the outside.

[0006] In one embodiment, the thinning section is a non-absorbent line.

[0007] In one embodiment, the thinned portion is provided with a breakable structure.

[0008] In one embodiment, the cross-section of the first limiting protrusion is an isosceles trapezoid, and the width of the bottom of the first limiting protrusion is greater than the width of the top of the first limiting protrusion.

[0009] In one embodiment, the width of the bottom of the buffer protrusion is smaller than the width of the top of the buffer protrusion.

[0010] In one embodiment, when the paper-plastic packaging structure completes the packaging of the product, the paper-plastic body located at one end of the paper-plastic packaging structure is inserted into another paper-plastic body. Among the two inserted paper-plastic bodies, the first limiting protrusion on the first paper-plastic body is inserted into the first limiting protrusion on the second paper-plastic body, and the buffer protrusion on the second paper-plastic body is inserted into the buffer protrusion on the first paper-plastic body.

[0011] In one embodiment, the top surface of the base plate is further provided with a second limiting protrusion, which is a hollow shell with its bottom connected to the outside. The second limiting protrusion divides the limiting groove into two regions.

[0012] In one embodiment, there are multiple buffer protrusions, and the two regions of the limiting groove are respectively provided with the buffer protrusions.

[0013] In one embodiment, the cross-section of the second limiting protrusion is an isosceles trapezoid, and the width of the bottom of the second limiting protrusion is greater than the width of the top of the second limiting protrusion.

[0014] In one embodiment, the top of the second limiting protrusion has a plurality of notches.

[0015] The beneficial effects of this utility model are as follows: This paper-plastic packaging structure is novel. Two adjacent paper-plastic bodies can rotate relative to each other through the thinning section. Each paper-plastic body unit has a small width, allowing the overall paper-plastic packaging structure to adapt to the shape of the packaged product, thus achieving wrapping coverage and improving packaging effectiveness. Compared to an integral hard-shell structure, the paper-plastic packaging structure that provides wrapping protection occupies less storage space, making it easier to store. In this paper-plastic packaging structure, the thinning section, due to its thinner material, is more prone to breakage than the paper-plastic body. Users can select a suitable location on the thinning section to tear the paper-plastic packaging structure, thus cutting out a suitable length for packaging small-sized products. Therefore, this paper-plastic packaging structure has strong versatility and can provide cushioning packaging for products of different sizes. Furthermore, when transporting the paper-plastic packaging structure, it can be stacked in a flat state, meaning it also offers the advantage of convenient transportation. Attached Figure Description

[0016] 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 the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the paper-plastic packaging structure in a flat state as shown in Example 1. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the paper-plastic packaging structure in a flat state as shown in Example 1. Figure 2;

[0019] Figure 3 This is a schematic diagram of the paper-plastic packaging structure in a flat state combined with a dumbbell in Example 1. Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the paper-plastic packaging structure in a flat state combined with a dumbbell in Example 1. Figure 2 .

[0021] Explanation of icon numbers:

[0022] 1. Paper-plastic body; 11. Base plate; 12. First limiting protrusion; 13. Limiting groove; 14. Buffer protrusion; 15. Second limiting protrusion; 16. Notch;

[0023] 2. Thinning section;

[0024] 3. Dumbbells. Detailed Implementation

[0025] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0026] 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.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0029] Furthermore, if the meaning of "and / or" appears throughout the text, it refers to three parallel solutions. For example, "and / or" includes solution 1, solution 2, and solution 3, which simultaneously satisfy the above conditions. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] In this application, unless otherwise expressly 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 application according to the specific circumstances.

[0031] Example 1

[0032] Please refer to Figures 1 to 4 The first embodiment of this utility model is as follows: a paper-plastic packaging structure, including multiple paper-plastic bodies 1 arranged in a row, each of the paper-plastic bodies 1 having the same structure and size, and two adjacent paper-plastic bodies 1 being connected by a thinning part 2. Each paper-plastic body 1 includes a base plate 11, and the top surface of the base plate 11 is provided with first limiting protrusions 12 at both ends, and a limiting groove 13 is formed between two first limiting protrusions 12. The first limiting protrusions 12 are hollow shells with their bottoms connected to the outside. The bottom surface of the base plate 11 is provided with a plurality of buffer protrusions 14, and the buffer protrusions 14 are hollow shells with their tops connected to the outside.

[0033] The thinning section 2 is a non-absorbent line. In paper-plastic packaging, the non-absorbent line refers to the line formed in a specific area where the pulp fibers fail to be absorbed onto the mold during the molding process of paper-plastic products. The material thickness at the non-absorbent line is lower than the thickness of other areas of the paper-plastic sheet. Therefore, in this paper-plastic packaging structure, the thinning section 2 is prone to deformation and tearing.

[0034] To make it easier for users to tear the thinned portion 2, optionally, the thinned portion 2 is provided with an easy-tear structure. The easy-tear structure includes, but is not limited to, an easy-tear line composed of a die-cutting groove or multiple die-cutting holes. The cross-section of the die-cutting groove can be V-shaped, U-shaped, or other shapes, which can be selected as needed; the shape of the die-cutting holes in the easy-tear line can be circular, elliptical, straight, etc.

[0035] To ensure that the paper-plastic packaging structure can wrap around the product, in some embodiments, the first limiting protrusion 12 is centrally located in the width direction of the base plate 11, and the two sides of the first limiting protrusion 12 form clearance positions to avoid gaps between the first limiting protrusion 12 on the adjacent paper-plastic body 1, thereby allowing the two adjacent paper-plastic bodies 1 to rotate relative to each other within the paper-plastic packaging structure. In this embodiment, the cross-section of the first limiting protrusion 12 is an isosceles trapezoid, and the width of the bottom of the first limiting protrusion 12 is greater than the width of the top of the first limiting protrusion 12.

[0036] Preferably, the width of the bottom of the buffer protrusion 14 is smaller than the width of the top of the buffer protrusion 14. In this embodiment, the buffer protrusion 14 is approximately frustum-shaped, and the diameter of the bottom of the buffer protrusion 14 is smaller than the diameter of the top of the buffer protrusion 14.

[0037] When the paper-plastic packaging structure completes the packaging of the product, the paper-plastic body 1 located at one end of the paper-plastic packaging structure and the paper-plastic body 1 located at the other end of the paper-plastic packaging structure are inserted into each other. Of the two inserted paper-plastic bodies 1, the first limiting protrusion 12 on the first paper-plastic body 1 inserts into the first limiting protrusion 12 on the second paper-plastic body 1, and the buffer protrusion 14 on the second paper-plastic body 1 inserts into the buffer protrusion 14 on the first paper-plastic body 1. This achieves self-locking of the paper-plastic packaging structure, further facilitating user operation.

[0038] Optionally, the top surface of the base plate 11 is also provided with a second limiting protrusion 15. The second limiting protrusion 15 is a hollow shell with its bottom connected to the outside. The second limiting protrusion 15 divides the limiting groove 13 into two areas. This paper-plastic packaging structure can be effectively adapted to the packaging of dumbbells 3.

[0039] The number of buffer protrusions 14 is multiple, and the two areas of the limiting groove 13 are respectively provided with the buffer protrusions 14. When the paper-plastic packaging structure of the packaged product is impacted, the relatively evenly distributed buffer protrusions 14 can better buffer the impact, thereby better protecting the packaged product.

[0040] Similarly, in this embodiment, the cross-section of the second limiting protrusion 15 is an isosceles trapezoid, and the width of the bottom of the second limiting protrusion 15 is greater than the width of the top of the second limiting protrusion 15. When the paper-plastic packaging structure completes the packaging of the product, in the two interlocking paper-plastic bodies 1, the second limiting protrusion 15 on the first paper-plastic body 1 is inserted into the second limiting protrusion 15 on the second paper-plastic body 1.

[0041] Optionally, the top of the second limiting protrusion 15 has a plurality of recesses 16. The recesses 16 help to enhance the structural strength of the second limiting protrusion 15, thereby improving the structural stability of the paper-plastic body 1.

[0042] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A paper-plastic packaging structure, characterized by: The device includes multiple paper-plastic bodies arranged in a row, with adjacent paper-plastic bodies connected by a thinning section. Each paper-plastic body includes a base plate, with first limiting protrusions at both ends of the top surface of the base plate, forming a limiting groove between two first limiting protrusions. Each first limiting protrusion is a hollow shell with its bottom connected to the outside. The bottom surface of the base plate is provided with several buffer protrusions, which are hollow shells with their tops connected to the outside.

2. The paper-plastic packaging structure according to claim 1, characterized in that: The thinning section is a non-absorbent line.

3. The paper-plastic packaging structure according to claim 1, characterized in that: The thinned portion is provided with a breakable structure.

4. The paper-plastic packaging structure according to claim 1, characterized in that: The cross-section of the first limiting protrusion is an isosceles trapezoid, and the width of the bottom of the first limiting protrusion is greater than the width of the top of the first limiting protrusion.

5. The paper-plastic packaging structure according to claim 4, characterized in that: The width of the bottom of the buffer protrusion is smaller than the width of the top of the buffer protrusion.

6. The paper-plastic packaging structure according to claim 5, characterized in that: When the paper-plastic packaging structure completes the packaging of the product, the paper-plastic body located at one end of the paper-plastic packaging structure is inserted into another paper-plastic body. Among the two inserted paper-plastic bodies, the first limiting protrusion on the first paper-plastic body is inserted into the first limiting protrusion on the second paper-plastic body, and the buffer protrusion on the second paper-plastic body is inserted into the buffer protrusion on the first paper-plastic body.

7. The paper-plastic packaging structure according to claim 1, characterized in that: The top surface of the base plate is also provided with a second limiting protrusion. The second limiting protrusion is a hollow shell with its bottom connected to the outside. The second limiting protrusion divides the limiting groove into two areas.

8. The paper-plastic packaging structure according to claim 7, characterized in that: The number of buffer protrusions is multiple, and the two regions of the limiting groove are respectively provided with the buffer protrusions.

9. The paper-plastic packaging structure according to claim 7, characterized in that: The cross-section of the second limiting protrusion is an isosceles trapezoid, and the width of the bottom of the second limiting protrusion is greater than the width of the top of the second limiting protrusion.

10. The paper-plastic packaging structure according to claim 7, characterized in that: The top of the second limiting protrusion has several notches.