Fireproof and flame-retardant packaging carton structure
Patent Information
- Application Number
- CN202522108043.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0005]本实用新型的目的是为了解决现有技术中存在的纸箱在增加其阻燃防火性能时,会进行材料增厚和重量增加,导致其侧边和折角处容易发生形变或坍塌的问题,而提出的一种防火阻燃包装纸箱结构
1、本实用新型中,通过加强条提高纸箱本体各个侧边的抗形变强度,在纸箱本体打开放置物品时,折叠框打开为上下开口的柱状结构,扳动两个支撑板,使得端部的两个叠放板贴合,转动定位板,使其端部分别插入两个插接口的内部,对打开的折叠框进行支撑,提高纸箱本体折角处的支撑强度。
Smart Images

Figure CN224797460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging carton technology, and in particular to a fireproof and flame-retardant packaging carton structure. Background Technology
[0002] Packaging cartons are made of paper products and are used to package various items. They are made of cardboard or paper and have advantages such as being lightweight, environmentally friendly, and recyclable. They are widely used in the transportation, storage, and sales of products.
[0003] For example, Chinese patent CN222947198U discloses a packaging carton with flame-retardant function, including a packaging carton body. The packaging carton body includes an inner layer, a core layer and an outer layer from the inside to the outside. The top of the packaging carton body is provided with an openable lid integrally formed therewith. The connection between the lid and the packaging carton body is sealed with fireproof tape. The core layer includes two connecting layers, and a reinforcing layer is provided between the opposite sides of the two connecting layers.
[0004] In the existing technology, when increasing the flame retardant and fireproof performance of cardboard boxes, multi-layer flame retardant materials or sandwich structures are used. Due to the increased thickness and weight of the materials, the sides are prone to deformation such as dents and bends when subjected to compression, collision or load. At the same time, when placing items, the corners need to bear the combined longitudinal and transverse stresses, which are prone to cracking and collapse due to concentrated stress, causing the entire cardboard box structure to fall apart. Utility Model Content
[0005] The purpose of this invention is to solve the problem that in the existing technology, when the flame-retardant and fire-resistant properties of cardboard boxes are increased, the material thickness and weight are increased, which makes the sides and corners prone to deformation or collapse. Therefore, this invention proposes a fire-retardant packaging cardboard box structure.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fireproof and flame-retardant packaging carton structure, comprising a carton body, with reinforcing mechanisms installed at the four corners of the carton body. Each reinforcing mechanism includes a folding frame, which is fixedly connected to the corner of the carton body. Support plates are fixedly connected to two opposite corners on the inner side of the folding frame. Stacking plates are fixedly connected to one side of each of the two support plates. The two stacking plates are joined together on one side. Insertion interfaces are provided on both stacking plates. Positioning plates are inserted into the interior of each insertion interface. The other sides of the two positioning plates are fixedly connected to the other two opposite corners on the inner side of the folding frame.
[0007] Preferably, a reinforcing strip is fixedly connected to the inner side of the carton body.
[0008] Preferably, a lid is fixedly connected to the top side of the carton body.
[0009] Preferably, the carton body includes a flame-retardant coating, a core paper layer is laminated to one side of the flame-retardant coating, a protective inner layer is laminated to one side of the core paper layer, and a supporting bottom layer is laminated to one side of the protective inner layer.
[0010] Preferably, the flame-retardant coating has a microcapsule cavity inside, and the core paper layer has tightly connected honeycomb pores inside.
[0011] Preferably, the inner protective layer is embedded with a mesh fabric, and the inner supporting layer is fixedly connected with a support column.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the reinforcing strips improve the deformation resistance of each side of the carton body. When the carton body is opened to place items, the folding frame opens into a columnar structure with openings at the top and bottom. By moving the two support plates, the two stacking plates at the ends are brought into contact. The positioning plate is rotated so that its ends are inserted into the interior of the two insertion interfaces to support the opened folding frame and improve the support strength at the corners of the carton body.
[0013] 2. In this utility model, the cardboard box body is provided with a flame-retardant coating, a core paper layer, a protective inner layer, and a supporting bottom layer from the outside to the inside. When the flame-retardant coating wears down, the microcapsule cavity ruptures and releases the flame retardant to fill the damaged area and extend the life of the flame-retardant effect. The honeycomb structure in the core paper layer absorbs the impact kinetic energy through deformation, which improves the impact resistance of the cardboard box body. At the same time, the flame-retardant starch foam can improve the flame-retardant effect. The protective inner layer is made of ceramic fiber paper and flame-retardant plastic material composite, which divides the space inside the box into independent fireproof zones and prevents the flame from spreading laterally. The supporting bottom layer is provided with support columns. When exposed to high temperature, the graphite expands rapidly, filling the gaps to enhance the compressive strength and prevent the cardboard box body from collapsing. Attached Figure Description
[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a fireproof and flame-retardant packaging carton structure; Figure 2 This utility model provides a schematic diagram of a partial connection structure of a fireproof and flame-retardant packaging carton. Figure 3 This utility model provides a schematic diagram of the disassembly structure of the reinforcing mechanism of a fireproof and flame-retardant packaging carton; Figure 4 This utility model presents a schematic diagram of the internal structure of a fire-resistant and flame-retardant packaging carton.
[0015] Legend: 1. Carton body; 11. Flame-retardant coating; 12. Core paper layer; 13. Protective inner layer; 14. Support bottom layer; 15. Microcapsule cavity; 16. Mesh cloth; 17. Support column; 2. Reinforcing mechanism; 21. Folding frame; 22. Positioning plate; 23. Support plate; 24. Insertion interface; 25. Stacking plate; 3. Carton lid; 4. Reinforcing strip. Detailed Implementation
[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0018] Example 1: As Figures 1-4 As shown, this utility model provides a fireproof and flame-retardant packaging carton structure, including a carton body 1. Reinforcing mechanisms 2 are installed at each of the four corners of the carton body 1. Each reinforcing mechanism 2 includes a folding frame 21, which is fixedly connected to the corner of the carton body 1. Support plates 23 are fixedly connected to two opposite corners on the inner side of the folding frame 21. Stacking plates 25 are fixedly connected to one side of each of the two support plates 23. The stacking plates 25 are joined on one side and each stacking plate 25 has an insertion interface 24. Positioning plates 22 are inserted into the interior of each insertion interface 24. The other sides of the positioning plates 22 are fixedly connected to two other opposite corners on the inner side of the folding frame 21. Reinforcing strips 4 are fixedly connected to the inner side of the carton body 1. A lid 3 is fixedly connected to the top side of the carton body 1.
[0019] A reinforcing strip 4 is provided on the inner side of the carton body 1, which can improve the deformation resistance of each side of the carton body 1. A reinforcing mechanism 2 is provided at each of the four corners of the carton body 1. When the carton body 1 is opened to place items, the folding frame 21 opens into a columnar structure with openings at the top and bottom. The two support plates 23 are moved so that the two stacking plates 25 at the ends fit together. The positioning plate 22 is rotated so that its ends are inserted into the two insertion interfaces 24 respectively, supporting the opened folding frame 21 and improving the support strength at the corners of the carton body 1.
[0020] Example 2: Figure 1 and Figure 4As shown, the carton body 1 includes a flame-retardant coating 11, a core paper layer 12 is laminated to one side of the flame-retardant coating 11, a protective inner layer 13 is laminated to one side of the core paper layer 12, and a supporting bottom layer 14 is laminated to one side of the protective inner layer 13; a microcapsule cavity 15 is provided inside the flame-retardant coating 11, and tightly connected honeycomb holes are opened inside the core paper layer 12; a mesh cloth 16 is embedded inside the protective inner layer 13, and a support column 17 is fixedly connected inside the supporting bottom layer 14.
[0021] The overall effect of this embodiment is that the cardboard box body 1 is provided with a flame-retardant coating 11, a core paper layer 12, a protective inner layer 13, and a supporting bottom layer 14 from the outside to the inside. The flame-retardant coating 11 is made of silicone rubber material, and a microcapsule cavity 15 is provided inside the flame-retardant coating 11. The microcapsule cavity 15 encapsulates a flame retardant. When the flame-retardant coating 11 is worn, the microcapsule cavity 15 ruptures and releases the flame retardant to fill the damaged area and extend the flame-retardant effect life. The core paper layer 12 has honeycomb pores inside, and the honeycomb pores are filled with flame-retardant starch foam. The honeycomb structure absorbs impact kinetic energy through deformation, and the foam material enters... The first step of shock absorption improves the impact resistance of the carton body 1. At the same time, the flame-retardant starch foam can improve the flame-retardant effect. The inner protective layer 13 is embedded with a mesh cloth 16, which is made of glass fiber material, to improve the puncture resistance and is suitable for packaging sharp items. The inner protective layer 13 is made of ceramic fiber paper and flame-retardant plastic material composite, which divides the internal space of the box into independent fireproof zones to prevent the lateral spread of flames. The bottom support 14 is equipped with support columns 17, which are graphite thermal response strips. When exposed to high temperature, the graphite expands rapidly to fill the gaps and enhance the compressive strength, preventing the carton body 1 from collapsing.
[0022] The device's usage and working principle are as follows: The cardboard box body 1, from the outside in, consists of a flame-retardant coating 11, a core paper layer 12, a protective inner layer 13, and a supporting bottom layer 14. The flame-retardant coating 11 is made of silicone rubber and contains microcapsule cavities 15. These microcapsules encapsulate flame retardants; when the flame-retardant coating 11 wears down, the microcapsules 15 rupture, releasing the flame retardants to fill the damaged areas and extend the flame-retardant effect's lifespan. The core paper layer 12 has honeycomb pores filled with flame-retardant starch foam. The honeycomb structure absorbs impact energy through deformation, and the foam further cushions vibration, increasing the impact resistance of the cardboard box body 1. Simultaneously, the flame-retardant starch foam enhances the flame-retardant effect. The protective inner layer 13 has a mesh fabric 16 embedded inside, made of fiberglass, which improves puncture resistance and is suitable for sharp objects. The packaging and protective inner layer 13 are made of ceramic fiber paper and flame-retardant plastic material composite, which divides the internal space of the box into independent fireproof zones to prevent the horizontal spread of flames. The supporting bottom layer 14 is equipped with support columns 17, which are graphite thermal response strips. When exposed to high temperature, the graphite expands rapidly to fill the gaps and enhance the compressive strength, preventing the carton body 1 from collapsing. Reinforcing strips 4 are provided on the inner side of the carton body 1 to improve the deformation resistance of each side of the carton body 1. Reinforcing mechanisms 2 are provided at the four corners of the carton body 1. When the carton body 1 is opened to place items, the folding frame 21 opens into a columnar structure with openings at the top and bottom. By moving the two support plates 23, the two stacking plates 25 at the ends are brought together. The positioning plate 22 is rotated so that its ends are inserted into the two insertion interfaces 24 to support the opened folding frame 21 and improve the support strength at the corners of the carton body 1.
[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A fire-resistant and flame-retardant packaging carton structure, characterized in that: The carton body (1) is provided with a reinforcing mechanism (2) installed at each of the four corners of the carton body (1). The reinforcing mechanism (2) includes a folding frame (21). The folding frame (21) is fixedly connected to the corner of the carton body (1). Support plates (23) are fixedly connected to two opposite corners on the inner side of the folding frame (21). Stacking plates (25) are fixedly connected to one side of the two support plates (23). The two stacking plates (25) are attached to each other. Insertion interfaces (24) are provided on the two stacking plates (25). Positioning plates (22) are inserted into the two insertion interfaces (24). The other side of the two positioning plates (22) is fixedly connected to the other two opposite corners on the inner side of the folding frame (21).
2. The fire-resistant and flame-retardant packaging carton structure according to claim 1, characterized in that: A reinforcing strip (4) is fixedly connected to the inside of the carton body (1).
3. The fire-resistant and flame-retardant packaging carton structure according to claim 1, characterized in that: A lid (3) is fixedly connected to the top side of the carton body (1).
4. The fire-resistant and flame-retardant packaging carton structure according to claim 1, characterized in that: The carton body (1) includes a flame-retardant coating (11), a core paper layer (12) is laminated to one side of the flame-retardant coating (11), a protective inner layer (13) is laminated to one side of the core paper layer (12), and a supporting bottom layer (14) is laminated to one side of the protective inner layer (13).
5. The fire-resistant and flame-retardant packaging carton structure according to claim 4, characterized in that: The flame-retardant coating (11) has a microcapsule cavity (15) inside, and the core paper layer (12) has tightly connected honeycomb pores inside.
6. The fire-resistant and flame-retardant packaging carton structure according to claim 4, characterized in that: The inner protective layer (13) is inlaid with a mesh cloth (16), and the inner supporting layer (14) is fixedly connected with a support column (17).
Citation Information
Patent Citations
Packaging carton with flame-retardant function
CN222947198U