Heat preservation carton suitable for refrigerated transportation

By incorporating removable insulation bags and sealing films within the insulated cardboard box, combined with a support frame and positioning components, the problems of moisture prevention and lid sealing of the insulated cardboard box are solved, achieving convenient sealing and fixation, improving the insulation effect during transportation and the reusability of the cardboard box.

CN224257201UActive Publication Date: 2026-05-19浙江兰溪中电电子科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
浙江兰溪中电电子科技有限公司
Filing Date
2025-03-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing insulated cardboard boxes have poor moisture protection, and the lids are difficult to seal and remove, making fresh produce susceptible to damage during transportation and unable to be reused.

Method used

An insulated cardboard box comprising a carton body and a carton lid has been designed, with a built-in removable insulation bag and sealing film. Convenient sealing and fixing are achieved through a support frame and positioning components, avoiding the use of tape.

Benefits of technology

It improves insulation, ensures airtightness, simplifies the installation and removal of the box lid, reduces the risk of carton deformation, and enhances the reusability of the carton.

✦ Generated by Eureka AI based on patent content.

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Abstract

The heat preservation carton comprises a carton body and a carton cover, a supporting frame is installed in an opening of the carton body, a first groove of a frame-shaped structure is formed in an inner ring of the supporting frame, a first fixing frame is inserted into the first groove, a heat preservation bag is installed in the first fixing frame, and a second fixing frame is installed in the heat preservation bag. A second groove of a frame-shaped structure is formed in the position, located on the outer side of the first groove, of the supporting frame, a second fixing frame is inserted into the second groove, a heat preservation film for sealing an opening of the heat preservation bag is installed on the surface of the second fixing frame, and positioning assemblies for fixing the carton cover to the carton body are installed on the two sides of the carton cover correspondingly. The heat preservation carton is simple in structure, the heat preservation bag and the heat preservation film can be rapidly assembled through the first fixing frame and the second fixing frame, the opening of the heat preservation bag can be sealed through the heat preservation film, the internal heat preservation effect is improved, the carton cover does not need adhesive tape, and the carton cover and the carton body can be rapidly connected and fixed through the inserting block.
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Description

Technical Field

[0001] This utility model relates to the field of insulated cardboard box technology, specifically to an insulated cardboard box suitable for refrigerated transportation. Background Technology

[0002] Cardboard boxes are the most widely used packaging products. Depending on the materials used, there are corrugated cardboard boxes, single-layer cardboard boxes, etc., and they come in various sizes and models. Insulated cardboard boxes are often used for packaging and transporting fresh produce.

[0003] However, the current insulated cardboard boxes have poor moisture-proof performance. Fresh produce inside may be placed with ice or be frozen during transportation. If the ice melts, it can cause the inside to become damp or damaged. Furthermore, current insulated cardboard boxes are designed as a single piece, making them impossible to replace if damaged. The lids of insulated cardboard boxes are usually sealed with transparent tape, making it difficult to secure the lids and subsequently disassemble them. Removing the tape can also easily tear the outer surface of the insulated cardboard box, making it difficult to reuse the box. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an insulated cardboard box suitable for refrigerated transportation. The box can ensure sealing and insulation effect by using a built-in and detachable insulated bag and an insulated film to seal the insulated bag. The box lid is easy to install and remove, thus solving the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: an insulated cardboard box suitable for refrigerated transportation, comprising a cardboard box body and a cardboard box lid. A support frame is installed in the opening of the cardboard box body. A first groove with a frame-shaped structure is provided on the inner ring of the support frame. A first fixing frame is inserted into the first groove. An insulated bag is installed inside the first fixing frame. The insulated bag extends into the interior of the cardboard box body and contacts the bottom surface of the inner cavity of the cardboard box body. A second groove with a frame-shaped structure is provided outside the support frame at the first groove. A second fixing frame is inserted into the second groove. An insulated film that seals the opening of the insulated bag is installed on the surface of the second fixing frame. The cardboard box lid is fitted onto the opening end of the cardboard box body. Positioning components that fix the cardboard box lid to the cardboard box body are installed on both sides of the cardboard box lid.

[0006] As a preferred technical solution, both sides of the carton lid are provided with strip openings, and both sides of the carton body are provided with through openings directly opposite the strip openings. Both sides of the support frame are provided with slots directly opposite the through openings. The positioning components include a panel and inserts. The panels are all set on the outer surface of the carton lid, and the inserts are all installed on the inner side of the panels. One end of each insert passes through the strip opening and the through opening and is inserted into the slot.

[0007] As a preferred technical solution, a fixing block is installed at one end of each strip-shaped opening, and the fixing block is fixedly connected to the panel by a torsion spring hinge.

[0008] As a preferred technical solution, the support frame, the first fixing frame, and the second fixing frame are all made of plastic material.

[0009] As a preferred technical solution, both the insulated bag and the insulated film are made of thickened plastic film material.

[0010] As a preferred technical solution, clearance gaps are formed between the insert block and the slot, through-hole, and strip opening to allow the insert block to rotate outward.

[0011] As a preferred technical solution, support columns are vertically installed at the corners of the support frame, and one end of each support column is in contact with the bottom surface of the inner cavity of the carton.

[0012] The beneficial effects of this utility model are: the utility model has a simple structure, with independent insulation bags and insulation films, and the insulation bags and insulation films can be quickly assembled through the first and second fixing frames. The insulation film can seal the opening of the insulation bag, increasing the internal insulation effect. The carton lid does not require tape and can be quickly connected and fixed to the carton body through the insert block. Furthermore, the support frame and support column can increase the vertical and external inward support force of the carton body, thereby reducing the deformation of the carton body during refrigerated transportation. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model after removing any panel;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model after the carton lid is removed;

[0017] Figure 4 This is a schematic diagram of the installation structure of the present invention in an insulated bag;

[0018] Figure 5 This is a schematic diagram of the support frame of this utility model.

[0019] The components are: 1. Carton body; 2. Carton lid; 3. Panel; 4. Strip opening; 5. Insert block; 6. Fixing block; 7. Through opening; 8. Insulation film; 9. Support frame; 10. Second groove; 11. First fixing frame; 12. Insulation bag; 13. Support column. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0022] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses an insulated cardboard box suitable for refrigerated transportation, characterized in that: it includes a cardboard box body 1 and a cardboard box lid 2. A support frame 9 is installed in the opening of the cardboard box body 1. The inner ring of the support frame 9 is provided with a first groove of frame structure. A first fixing frame 11 is inserted into the first groove. An insulated bag 12 is installed inside the first fixing frame 11. The insulated bag 12 extends into the interior of the cardboard box body 1 and contacts the bottom surface of the inner cavity of the cardboard box body 1. The support frame 9 is provided with a second groove of frame structure 10 on the outside of the first groove. A second fixing frame is inserted into the second groove 10. An insulated film 8 is installed on the surface of the second fixing frame to seal the opening of the insulated bag 12. The cardboard box lid 2 is fitted onto the opening end of the cardboard box body 1. Positioning components for fixing the cardboard box lid 2 to the cardboard box body 1 are installed on both sides of the cardboard box lid 2.

[0024] In this embodiment, both sides of the carton cover 2 are provided with strip openings 4, and both sides of the carton body 1 are provided with through openings 7 opposite to the strip openings 4. Both sides of the support frame 9 are provided with slots opposite to the through openings 7. The positioning component includes a panel 3 and an insert 5. The panel 3 is provided on the outer surface of the carton cover 2, and the insert 5 is installed on the inner side of the panel 3. One end of the insert 5 passes through the strip openings 4 and the through openings 7 and is inserted into the slot.

[0025] In this embodiment, a fixing block 6 is installed at one end of each strip-shaped opening 4, and the fixing block 6 is fixedly connected to the panel 3 by a torsion spring hinge.

[0026] In this embodiment, the support frame 9, the first fixing frame 11, and the second fixing frame are all made of plastic material, which increases the support for the carton body.

[0027] In this embodiment, both the insulation bag 12 and the insulation film 8 are made of thickened plastic film material. The plastic film can effectively keep the temperature warm and can also hold the melted ice, preventing it from coming into contact with the cardboard box and causing the cardboard box to become damp and damaged.

[0028] In this embodiment, clearance gaps are formed between the insert block 5 and the slot, the through-hole 7 and the strip opening 4 to allow the insert block 5 to rotate outward, so that the insert block can be smoothly limited and rotated out of the slot, which facilitates the subsequent opening operation of the carton lid.

[0029] As attached Figure 5 As shown, support columns 13 are vertically installed at the corners of the support frame 9, and one end of each support column 13 is in contact with the bottom surface of the inner cavity of the carton body 1.

[0030] The support frame provides support for the carton body, preventing deformation of the sides of the carton body caused by inward compression, while the support columns provide vertical support for the carton body, preventing vertical deformation caused by compression between the upper and lower carton bodies.

[0031] In use, the first fixing frame is inserted into the first groove to fix the insulated bag on the support frame, and the lower half of the insulated bag extends into the carton. The first fixing frame can open the opening of the insulated bag, so that fresh products can be put into the inside of the insulated bag more smoothly. After the products are placed, the second fixing frame is inserted into the second groove to cover the opening end of the insulated bag with the insulation film, thereby sealing the insulated bag.

[0032] To ensure the safety of the insulation film and further enhance the sealing and insulation effect, the carton lid is fitted onto the carton body without the need for tape. During fitting, the panel is opened outwards, causing the torsion spring hinge connected to the panel to be in a twisted state. After the carton lid is in place, the panel is released, and the reverse twist of the torsion spring hinge causes the panel to move towards the carton lid until the insert passes through the slot and the through-hole and is inserted into the slot. The carton lid is fixed by the insertion between the insert and the slot, which facilitates the subsequent opening and closing of the carton lid.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A paper carton suitable for the cold transport of goods, characterised in that: The carton includes a carton body (1) and a carton lid (2). A support frame (9) is installed in the opening of the carton body (1). A first groove with a frame structure is provided on the inner ring of the support frame (9). A first fixing frame (11) is inserted into the first groove. An insulation bag (12) is installed inside the first fixing frame (11). The insulation bag (12) extends into the interior of the carton body (1) and contacts the bottom surface of the inner cavity of the carton body (1). A second groove with a frame structure is provided on the outside of the support frame (9). A second fixing frame is inserted into the second groove (10). An insulation film (8) that seals the opening of the insulation bag (12) is installed on the surface of the second fixing frame. The carton lid (2) is fitted onto the opening end of the carton body (1). Positioning components that fix the carton lid (2) to the carton body (1) are installed on both sides of the carton lid (2).

2. A thermo-papier mache box suitable for cold chain transportation according to claim 1, characterized in that: The carton lid (2) has a strip opening (4) on both sides. The carton body (1) has a through opening (7) on both sides opposite the strip opening (4). The support frame (9) has a slot on both sides opposite the through opening (7). The positioning component includes a panel (3) and a plug (5). The panel (3) is set on the outer surface of the carton lid (2). The plug (5) is installed on the inner side of the panel (3). One end of the plug (5) passes through the strip opening (4) and the through opening (7) and is inserted into the slot.

3. A thermo-papier mache box suitable for cold chain transport according to claim 2, characterized in that: A fixing block (6) is installed at one end of each slot (4), and the fixing block (6) is fixedly connected to the panel (3) by a torsion spring hinge.

4. The insulated paper carton suitable for refrigerated transport according to claim 1, characterized in that: The support frame (9), the first fixing frame (11), and the second fixing frame are all made of plastic material.

5. The insulated paper carton suitable for refrigerated transport according to claim 1, characterized in that: Both the thermal bag (12) and the thermal film (8) are made of thickened plastic film material.

6. The insulating carton suitable for cold-chain transport according to claim 2, characterized in that: The insertion block (5) has clearance gaps between itself and the slot, through-hole (7) and strip opening (4) to allow the insertion block (5) to rotate outward.

7. The insulated paper carton suitable for cold chain transport according to claim 1, characterized in that: Support columns (13) are vertically installed at the corners of the support frame (9), and one end of each support column (13) is in contact with the bottom surface of the inner cavity of the carton body (1).