Heat preservation carton for packaging fresh products

By incorporating inner and outer waterproof layers and support components within the insulated cardboard box, the problems of easy deformation and poor moisture resistance of aluminum foil insulated cardboard boxes are solved, achieving efficient waterproofing, moisture resistance, and support effects to protect fresh produce.

CN224014422UActive Publication Date: 2026-03-20JINAN JILIAN PACKAGING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing aluminum foil insulated cartons are prone to deformation when stacked in multiple layers, leading to damage to fresh produce. They also have poor moisture protection, making them susceptible to moisture absorption and increasing the risk of damage to the cartons.

Method used

An insulated cardboard box was designed, which has an insulation component and a support component with inner and outer waterproof layers. The component includes an insulation board, an inner waterproof layer, an outer waterproof layer, a support base plate, and a reinforced base. The inner and outer waterproof layers prevent water from seeping in, and the support component provides support to prevent deformation.

Benefits of technology

It improves the waterproof and moisture-proof performance and the support and pressure resistance of insulated cardboard boxes, protects fresh products, reduces the risk of deformation and damage, and extends service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224014422U_ABST
    Figure CN224014422U_ABST
Patent Text Reader

Abstract

The utility model provides a heat preservation carton for packaging fresh products, which comprises a carton body, the inner side of the carton body is provided with a heat preservation component for heat preservation and moisture prevention, the top of the heat preservation component is provided with a heat preservation cover plate, and the heat preservation component is internally provided with a supporting component for supporting and reinforcing; the heat preservation assembly is composed of a heat preservation plate, an inner waterproof layer and an outer waterproof layer, the inner waterproof layer is arranged on the inner side of the heat preservation plate, the outer waterproof layer is arranged on the outer side of the heat preservation plate, and the heat preservation cover plate and the heat preservation assembly are the same in composition structure. By means of the inner waterproof layer and the outer waterproof layer arranged in the heat preservation assembly, after fresh products are stored, inner and outer double-layer water prevention is conducted, meanwhile, the sealing ring at the bottom of the heat preservation cover plate is inserted into the heat preservation assembly for sealed storage, and the situation that moisture volatilized by the fresh products permeates into the connecting positions of the waterproof layers and the carton can be avoided; and the supporting assembly is matched to support the heat preservation carton from the interior of the supporting assembly, so that the waterproof, dampproof, supporting and compression-resistant effects of the heat preservation carton are improved.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to fresh product packaging technical field, concretely relates to a heat preservation carton for fresh product packaging. BACKGROUND

[0002] Fresh product refers to the primary product that is not cooked, made and so on deep processing process, only necessary fresh keeping and simple arrangement on shelf and sells, and the commodity of the on-site processing product category such as bread, cooked food, the quality of these products is ensured when packaging and transporting, and the fresh product needs to be kept warm, fresh and moisture-proofed;

[0003] The fresh product is packaged by using the heat preservation carton at present, and the heat preservation carton is usually an aluminum foil heat preservation carton, which is composed of kraft paper, PS foam plastic and aluminum foil. During the actual use of the aluminum foil heat preservation carton, it is found that when the multi-layer carton is stacked, the bottom carton is easily deformed due to excessive load, which causes the internal fresh product (such as eggs and fruits) to be squeezed and damaged. In addition, some fresh products have a high water content, which causes the inside of the carton to be relatively humid. The ordinary aluminum foil layer is in a high-humidity environment for a long time, and the connection between the aluminum foil layer and the carton is easily damp and absorbs water, increasing the risk of damage to the carton.

[0004] In summary, there is a need for a heat preservation carton for fresh product packaging with high support strength and efficient moisture-proofing. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies of the prior art, the utility model provides a heat preservation carton for fresh product packaging, which solves the problems mentioned in the background art.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme:

[0007] A heat preservation carton for fresh product packaging, comprising a carton body, a heat preservation assembly for heat preservation and moisture-proofing is arranged on the inner side of the carton body, a heat preservation cover plate is arranged on the top of the heat preservation assembly, and a support assembly for support and reinforcement is arranged in the heat preservation assembly.

[0008] The heat preservation assembly is composed of a heat preservation plate, an inner waterproof layer and an outer waterproof layer. The inner waterproof layer is arranged on the inner side of the heat preservation plate, and the outer waterproof layer is arranged on the outer side of the heat preservation plate. The heat preservation cover plate has the same structure as the heat preservation assembly. A lifting ring is arranged in the middle of the top surface of the heat preservation cover plate. A sealing ring is arranged on the bottom surface of the heat preservation cover plate. The sealing ring has an elastic structure. The sealing ring is connected with the top opening of the heat preservation assembly in a clamping manner.

[0009] Further, the heat preservation assembly and the inner side of the carton body are connected in a clamping and sliding manner. Positioning grooves are arranged on the inner side of the carton body. Multiple groups of positioning grooves are arranged at equal intervals. Positioning blocks are arranged on the outer side of the heat preservation assembly. The positioning blocks are arranged correspondingly to the positioning grooves. The positioning blocks and the positioning grooves are connected in a sliding and clamping manner.

[0010] Further, the paper box body bottom outer side is provided with a waterproof cofferdam, and the waterproof cofferdam is hot-pressed and attached to the paper box body.

[0011] Further, the support assembly comprises a support bottom plate and a reinforcing base, the reinforcing base is arranged at the inner corner of the heat preservation assembly, support bottom plates are fixedly arranged on both sides of the reinforcing base, a support rod is arranged on the top surface of the reinforcing base, a support block is arranged on the top surface of the support rod, and a support top plate is fixedly arranged on the side of the support block.

[0012] Further, the reinforcing base and the support block are slidably clamped to the inner side of the heat preservation assembly, and the reinforcing base and the support block are elastic structures.

[0013] The utility model provides a heat preservation paper box for fresh product packaging, which has the following beneficial effects compared with the prior art:

[0014] The inner waterproof layer and the outer waterproof layer arranged in the heat preservation assembly can provide double-layer waterproofing after storing fresh products, and the sealing ring at the bottom of the heat preservation cover plate is inserted into the heat preservation assembly for sealed storage, which can prevent the moisture volatilized from the fresh products from penetrating into the connection between the waterproof layer and the paper box. BRIEF DESCRIPTION OF DRAWINGS

[0015] To make the technical solutions in the embodiments of the utility model or the prior art clearer, the accompanying drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the accompanying drawings in the following description are only some embodiments of the utility model, and other accompanying drawings can be obtained by those skilled in the art without creative effort on the premise of not paying creative effort.

[0016] Figure 1 The structure schematic diagram of the heat preservation paper box for fresh product packaging is shown.

[0017] Figure 2 The internal structure schematic diagram of the overall side view of the utility model is shown.

[0018] Figure 3 The structure schematic diagram of the paper box body of the utility model is shown.

[0019] Figure 4 The structure schematic diagram of the support assembly of the utility model is shown.

[0020] As shown in the figure: 1, carton body; 11, waterproof cofferdam; 2, heat preservation assembly; 21, heat preservation plate; 22, inner waterproof layer; 23, outer waterproof layer; 3, heat preservation cover plate; 31, lifting ring; 32, sealing ring; 4, support assembly; 41, support bottom plate; 42, reinforcing base; 43, support rod; 44, support block; 45, support top plate; 5, positioning groove; 6, positioning block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the range of protection of the utility model.

[0022] Embodiment one: to solve the technical problems in the background art, give the following one kind for fresh product packaging heat preservation carton:

[0023] Combined Figures 1-4 As shown in the figure, the utility model provides a kind of heat preservation carton for fresh product packaging, including carton body 1, heat preservation assembly 2 of heat preservation moisture-proof is equipped in carton body 1 inner side, heat preservation cover plate 3 of sealing heat preservation moisture-proof is equipped in heat preservation assembly 2 top, support assembly 4 of support reinforcing improves high carton support capacity is equipped in heat preservation assembly 2 inside, heat preservation assembly 2 is composed of heat preservation plate 21, inner waterproof layer 22 and outer waterproof layer 23, heat preservation plate 21 inner side is equipped with inner waterproof layer 22, heat preservation plate 21 example is like foamed polypropylene foam board, heat preservation plate 21 outer side is equipped with outer waterproof layer 23, inner waterproof layer 22 and outer waterproof layer 23 are composed of the composite aluminum foil coated fluorocarbon coating of polyethylene on the basis of aluminum foil layer, heat preservation cover plate 3 and heat preservation assembly 2 group structure same, heat preservation cover plate 3 top surface middle part is equipped with lifting ring 31, lifting ring 31 is convenient to take heat preservation cover plate 3, heat preservation cover plate 3 bottom is equipped with sealing ring 32, sealing ring 32 is in elastic structure, sealing ring 32 and heat preservation assembly 2 top opening snap joint, sealing ring 32 and heat preservation assembly 2 snap joint, can improve the sealing effect of this carton package, avoid outside air infiltration, accelerate product oxidation metamorphism, such as meat discoloration;

[0024] In the embodiment, heat preservation assembly 2 and carton body 1 inner side snap joint sliding, carton body 1 inner side is equipped with positioning groove 5, positioning groove 5 is distributed with multiple groups at equal intervals, heat preservation assembly 2 outer side is equipped with positioning block 6, positioning block 6 is correspondingly arranged with positioning groove 5, positioning block 6 and positioning groove 5 sliding snap joint, through the snap joint of heat preservation assembly 2 and carton body 1, so that the heat preservation carton in actual use process, can replace heat preservation assembly 2 outer side easy to wear carton body 1, be favorable to long-term use of the heat preservation carton;

[0025] In the embodiment, the waterproof cofferdam 11 is arranged on the outer side of the bottom of the carton body 1, and the waterproof cofferdam 11 is hot-pressed and attached to the carton body 1. The waterproof cofferdam 11 is composed of a polyethylene film, which can improve the waterproof and moisture-proof effect of the part of the bottom of the heat preservation carton that is easy to contact with the outside world.

[0026] The heat preservation assembly 2 in the heat preservation carton can be double-layer waterproofed inside and outside after storing fresh products through the inner waterproof layer 22 and the outer waterproof layer 23. In combination with the sealing ring 32 at the bottom of the heat preservation cover plate 3 inserted into the heat preservation assembly 2 for sealing storage, the situation that the moisture volatilized from the fresh products penetrates into the connection part between the waterproof layer and the carton can be avoided, thereby being beneficial to improving the waterproof and moisture-proof effect of the heat preservation carton.

[0027] Embodiment two: as shown in the above embodiment, the embodiment further gives the following contents: Figures 1-4

[0028] In order to improve the supporting effect of the heat preservation carton during use, the embodiment gives the following design:

[0029] The supporting assembly 4 comprises a supporting bottom plate 41 and a reinforcing base 42. The reinforcing base 42 is arranged at the inner corner of the heat preservation assembly 2, and the supporting bottom plate 41 is fixedly arranged on both sides of the reinforcing base 42. The reinforcing base 42 is provided with a supporting rod 43 on the top surface, and the supporting rod 43 is provided with a supporting block 44 on the top surface. The supporting block 44 is fixedly provided with a supporting top plate 45 on the edge. The supporting block 44 and the reinforcing base 42 can cooperate with the supporting rod 43 to support the carton from the inside of the heat preservation carton, improve the compressive resistance of the heat preservation carton, effectively protect the internal fresh products, and also provide a certain stiffness for the heat preservation carton, so that the heat preservation carton is not easy to deform during stacking and transportation.

[0030] In the embodiment, the reinforcing base 42 and the supporting block 44 are slidably clamped with the inner side of the heat preservation assembly 2. Through the clamping and sliding of the reinforcing base 42 and the supporting block 44 with the heat preservation assembly 2, it is convenient to clean the inside of the heat preservation carton after use, which is beneficial to the recycling of the heat preservation carton. The supporting block 44 and the reinforcing base 42 are both elastic structures. The elastic supporting block 44 and the reinforcing base 42 can support and buffer when the heat preservation carton is used to package and stack fresh products, thereby reducing the risk of deformation of the supporting assembly 4 and the carton body 1 under load.

[0031] ​It is to be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0032] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An insulated cardboard box for packaging fresh produce, characterized in that: The carton body (1) is provided with a heat-insulating and moisture-proof insulation component (2) on the inside of the carton body (1), a heat-insulating cover plate (3) is provided on the top of the heat-insulating component (2), and a support component (4) is provided inside the heat-insulating component (2) for support and reinforcement. The insulation component (2) consists of an insulation board (21), an inner waterproof layer (22) and an outer waterproof layer (23). The inner side of the insulation board (21) is provided with an inner waterproof layer (22), and the outer side of the insulation board (21) is provided with an outer waterproof layer (23). The insulation cover plate (3) has the same structure as the insulation component (2). The top surface of the insulation cover plate (3) is provided with a lifting ring (31), and the bottom surface of the insulation cover plate (3) is provided with a sealing ring (32). The sealing ring (32) has an elastic structure and is engaged with the top opening of the insulation component (2).

2. The insulated cardboard box for packaging fresh produce according to claim 1, characterized in that: The insulation component (2) engages and slides with the inner side of the carton body (1). The inner side of the carton body (1) is provided with a positioning groove (5). Multiple sets of positioning grooves (5) are distributed at equal intervals. The outer side of the insulation component (2) is provided with a positioning block (6). The positioning block (6) is correspondingly set with the positioning groove (5). The positioning block (6) and the positioning groove (5) are engaged and slidably engaged.

3. The insulated cardboard box for packaging fresh produce according to claim 1, characterized in that: The bottom outer side of the carton body (1) is provided with a waterproof dam (11), and the waterproof dam (11) is heat-pressed to adhere to the carton body (1).

4. The insulated cardboard box for packaging fresh produce according to claim 1, characterized in that: The support assembly (4) includes a support base plate (41) and a reinforcing base (42). The reinforcing base (42) is located at the inner corner of the insulation assembly (2). The support base plate (41) is fixed on both sides of the reinforcing base (42). The top surface of the reinforcing base (42) is provided with a support rod (43). The top surface of the support rod (43) is provided with a support block (44). The side of the support block (44) is fixed with a support top plate (45).

5. An insulated cardboard box for packaging fresh produce according to claim 4, characterized in that: The reinforced base (42) and the support block (44) engage and slide with the inner side of the insulation component (2). Both the support block (44) and the reinforced base (42) are elastic structures.