A food packaging box that can be easily heated

By incorporating a structural design that includes an insulation ring, auxiliary seat, insulation layer, and base into the food packaging box, combined with connecting components, the problem of excessively high temperatures in traditional food packaging boxes after heating is solved, thereby improving safety and stability and preventing burns and food leakage.

CN224312314UActive Publication Date: 2026-06-02ZIXI COUNTY LIANGSHAN FORESTRY IND DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZIXI COUNTY LIANGSHAN FORESTRY IND DEVELOPMENT CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-02

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Abstract

This utility model discloses a conveniently heatable food packaging box, including a box body, a lid on the top of the box body, a heat insulation ring fixedly connected to the top of the lid, an auxiliary seat fixedly connected to the bottom of the lid, a heat insulation layer below the auxiliary seat, the heat insulation layer fixedly connected to the bottom of the box body, and a base fixedly connected to the bottom of the heat insulation layer. This utility model relates to the field of food packaging technology. This conveniently heatable food packaging box, through the cooperation of the heat insulation ring, auxiliary seat, heat insulation layer, and base, reduces heat transfer, preventing users from being burned by the excessively high temperature of the heated food packaging box when handling it. It ensures that users can safely remove the heated food packaging box from the microwave oven, improving safety during use and saving users time and effort.
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Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically to a food packaging box that can be easily heated. Background Technology

[0002] Food packaging boxes are packaging containers designed to protect, store, transport, display, and enhance the convenience of eating food.

[0003] Traditional, easily heatable food packaging boxes require users to place the food inside the box and then put it in a microwave oven to heat it.

[0004] However, in actual use, when traditional food packaging boxes that are easy to heat are microwaved, the heat from the food is transferred to the packaging box. When users pick up the packaging box, the temperature of the box may be too high, which may cause injury to the user's hands. Furthermore, users may subconsciously pull their hands back, causing the food packaging box containing food to fall and contaminate the user's clothes or the microwave-heated area. More seriously, if the food is a liquid such as soup or porridge, the hot liquid may splash out when it falls, causing secondary burns to the user. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a conveniently heatable food packaging box. This solves the problem that in practical use, traditional conveniently heatable food packaging boxes, after microwave heating, transfer heat from the food to the packaging box. When users handle the box, the excessive temperature of the packaging box may cause injury to their hands. Furthermore, users may unconsciously pull their hands back, causing the food packaging box containing the food to fall and contaminate their clothing or the microwave-heated area. More seriously, if the food is liquid such as soup or porridge, the falling food may splash hot liquid, causing secondary burns to the user.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a food packaging box that can be easily heated, comprising a box body, a box lid provided on the top of the box body, a heat insulation ring fixedly connected to the top of the box lid, an auxiliary seat fixedly connected to the bottom of the box lid, a heat insulation layer provided below the auxiliary seat, the heat insulation layer fixedly connected to the bottom of the box body, and a base fixedly connected to the bottom of the heat insulation layer.

[0007] Preferably, a connecting seat is fixedly connected to the side wall of the base, a connecting plate is rotatably connected to the top of the connecting seat via a pin, a connecting block is fixedly connected to the outer wall of the connecting plate, a connecting groove is sleeved on the outer wall of the connecting block, and the connecting groove is opened on the side wall of the box cover.

[0008] Preferably, a limiting ring is fixedly connected to the outer wall of the box body, and a limiting groove is engaged with the outer wall of the limiting ring. The limiting groove is opened on the inner wall of the box cover, and a sealing ring is provided below the limiting groove. The sealing ring is fixedly connected to the inner wall of the box cover.

[0009] Preferably, the top of the lid has a vent hole.

[0010] Preferably, the interior of the box body is processed with a hollow layer.

[0011] Preferably, an anti-slip protrusion is provided above the connecting block, and the anti-slip protrusion is fixedly connected to the outer wall of the connecting plate.

[0012] Beneficial effects

[0013] This utility model provides a conveniently heatable food packaging box. It offers the following advantages: Through the cooperation of an insulation ring, an auxiliary seat, an insulation layer, and a base, this conveniently heatable food packaging box reduces heat transfer, preventing users from burning their hands when handling the heated food packaging box due to its excessive temperature. It also ensures that users can safely remove the heated food packaging box from the microwave oven, improving safety during use and saving users time and effort.

[0014] By combining the connecting seat, connecting plate, connecting block and connecting groove, the lid and the box body are reinforced. Even if the food inside the food packaging box is heavy, the seal between the lid and the box body can be guaranteed when the user takes out the food packaging box. This ensures that the food inside the packaging box will not leak out due to the lid falling off, effectively avoiding food waste. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0016] Figure 2 for Figure 1 Exploded view;

[0017] Figure 3 for Figure 2 A sectional view;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure of the insulation layer, the base, and the hollow layer.

[0019] In the diagram: 1. Box body; 2. Box lid; 3. Insulation ring; 4. Auxiliary seat; 5. Insulation layer; 6. Base; 7. Connecting seat; 8. Connecting plate; 9. Connecting block; 10. Connecting groove; 11. Limiting ring; 12. Limiting groove; 13. Sealing ring; 14. Vent hole; 15. Hollow layer; 16. Anti-slip protrusion. Detailed Implementation

[0020] 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.

[0021] In actual use, traditional food packaging boxes that are easy to heat up will have their heat transferred to the box after being microwaved. When users pick up the box, the high temperature of the box may injure their hands. Users may also subconsciously pull their hands back, causing the food packaging box containing food to fall and contaminate their clothes or the microwave-heated area. More seriously, if the food is liquid such as soup or porridge, the high-temperature liquid may splash out when it falls, causing secondary burns to the user.

[0022] In view of this, the present invention provides a food packaging box that can be easily heated. This food packaging box, through the cooperation of a heat insulation ring, an auxiliary seat, a heat insulation layer and a base, reduces heat transfer and prevents users from burning their hands when handling the heated food packaging box due to its high temperature. It also ensures that users can steadily remove the heated food packaging box from the microwave oven, improving safety during use and saving users time and effort.

[0023] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0024] Example 1, by Figures 1-4 It is known that a food packaging box that can be easily heated includes a box body 1, a box cover 2 is provided on the top of the box body 1, a heat insulation ring 3 is fixedly connected to the top of the box cover 2, an auxiliary seat 4 is fixedly connected to the bottom of the box cover 2, a heat insulation layer 5 is provided below the auxiliary seat 4, the heat insulation layer 5 is fixedly connected to the bottom of the box body 1, and a base 6 is fixedly connected to the bottom of the heat insulation layer 5.

[0025] In the specific implementation process, it is particularly worth noting that the overall shape of the box body 1 is similar to a rectangle, and its cross-section is similar to a trapezoid. It can accommodate food inside. Its material can be selected as high-temperature-resistant polypropylene material, with a melting point as high as 167 °C, which can withstand the high temperature of microwave heating, and has good chemical stability and will not release harmful substances. The overall shape of the box cover 2 is similar to a rectangle, and its cross-section is similar to a 'door' shape. Its material is the same as that of the box body 1. The heat insulation ring 3 is overall similar to a rectangular ring, and its cross-section is similar to a trapezoid. Its material can be selected as food-grade silica gel material, and its connection with the box cover 2 can be realized through an integral molding process to ensure firm and reliable connection. There are two auxiliary seats 4, which are respectively located at the front and back of the bottom of the box cover 2. The bottom of the auxiliary seat 4 is processed with a semi-circular groove, and its material is the same as that of the heat insulation ring 3. The heat insulation layer 5 is fixed to the bottom of the box body 1 and is in the shape of a rectangular plate. Its material can be selected as food-grade aerogel felt. The cross-section of the base 6 is similar to a 'not' shape, and its material is the same as that of the box body 1. When actually taking it, the user places the thumb on the top of the heat insulation ring 3, and the index finger and middle finger can hold the bottom of the auxiliary seat 4 or the skirt (side wall) of the base 6. After the heat of the food after heating is transferred to the box body 1, a part of it is blocked by the box cover 2, and another part is blocked by the heat insulation ring 3. Similarly, after the heat of the food after heating is transferred to the box body 1, the heat insulation layer 5 blocks a part of the heat, transfers it to the base 6, and another part is blocked. Through the structure and material, only a small part of the heat that can be accepted is transferred to the position directly contacted by the user's skin, so as to achieve the purpose of preventing scalding and improve the use safety of this conveniently heated food packaging box;

[0026] Furthermore, the side wall of the base 6 is fixedly connected with a connecting seat 7. The top of the connecting seat 7 is rotatably connected with a connecting plate 8 through a pin shaft. The outer wall of the connecting plate 8 is fixedly connected with a connecting block 9. The outer wall of the connecting block 9 is sleeved with a connecting groove 10, and the connecting groove 10 is opened on the side wall of the box cover 2;

[0027] In the specific implementation process, it is particularly worth noting that there are two connecting seats 7, which are respectively fixed on both sides of the outer wall of the base 6. Their material is the same as that of the box body 1. The overall shape is similar to a 'concave' shape. A pin shaft is provided at the top. The pin shaft can be made of stainless steel. There are two connecting plates 8. The overall shape is similar to a curved plate. Their material is the same as that of the box body 1. The top is processed into an arc shape. There are two connecting blocks 9, which are respectively fixed on one side of the outer walls of the two connecting plates 8 close to each other. The overall shape is similar to a mushroom shape. Their material can be selected as food-grade TPE material. There are two connecting grooves 10, which are respectively opened on both sides of the outer wall of the box cover 2. Their shape is the same as that of the connecting block 9. When it is necessary to reinforce between the box body 1 and the box cover 2, the user picks up the two connecting plates 8 at the same time, drives the connecting plates 8 to rotate around the pin shaft of the connecting seat 7, the connecting plates 8 drive the connecting blocks 9 to move, and the connecting blocks 9 gradually approach the connecting grooves 10 until they are clamped into the inside of the connecting grooves 10. At this time, the fixing effect between the box body 1 and the box cover 2 is significantly improved, and the structural stability of the convenient heating food packaging box is improved;

[0028] Furthermore, a limiting ring 11 is fixedly connected to the outer wall of the box body 1. A limiting groove 12 is clamped on the outer wall of the limiting ring 11. The limiting groove 12 is opened on the inner wall of the box cover 2. A sealing ring 13 is provided below the limiting groove 12. The sealing ring 13 is fixedly connected to the inner wall of the box cover 2;

[0029] In the specific implementation process, it is particularly worth noting that the limiting ring 11 is in the shape of a rectangular ring as a whole, and its cross-section is similar to a trapezoid. Its material can be selected as food-grade modified PP material. The shape of the limiting groove 12 is similar to that of the limiting ring 11 and is opened on the inner wall of the box cover 2. It is matched with the limiting ring 11 to realize the clamping and fixing between the box body 1 and the box cover 2. The sealing ring 13 is made of food-grade silica gel material. Silica gel has good elasticity and high temperature resistance and can maintain the sealing performance during the heating process to prevent steam and soup from leaking;

[0030] Embodiment 2, as Figures 1-4 it can be seen, a vent hole 14 is opened on the top of the box cover 2;

[0031] In the specific implementation process, it is particularly worth noting that the vent hole 14 is circular. The vent hole 14 can release the steam generated by heating, balance the air pressure inside the box, avoid the packaging box from expanding and deforming, and improve the service life of the convenient heating food packaging box. Among them, when not heated, the vent hole 14 is sealed by a food-grade silica gel soft body to prevent the food inside the box body 1 from leaking through the vent hole 14;

[0032] Furthermore, a hollow layer 15 is processed inside the box body 1;

[0033] In the specific implementation process, it is worth noting that the hollow layer 15 can reduce heat conduction. Its interior can be filled with air or heat insulation material to further reduce the temperature of the outer wall of the box 1 and protect the user from being burned.

[0034] Furthermore, an anti-slip protrusion 16 is provided above the connecting block 9, and the anti-slip protrusion 16 is fixedly connected to the outer wall of the connecting plate 8.

[0035] In the specific implementation process, it is worth noting that the anti-slip protrusions 16 are circular and there are multiple of them. They are fixed on both sides of the outer wall of the connecting plate 8, which increases the friction between the user's hand and the connecting plate 8. The user can easily open the connecting plate 8, thereby improving the ease of use of the food packaging box that can be easily heated.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A food packaging box that can be easily heated, comprising a box body (1), characterized in that: The top of the box body (1) is provided with a box cover (2), the top of the box cover (2) is fixedly connected with a heat insulation ring (3), the bottom of the box cover (2) is fixedly connected with an auxiliary seat (4), the bottom of the auxiliary seat (4) is provided with a heat insulation layer (5), the heat insulation layer (5) is fixedly connected to the bottom of the box body (1), and the bottom of the heat insulation layer (5) is fixedly connected with a base (6).

2. The food packaging box that can be easily heated according to claim 1, characterized in that: A connecting seat (7) is fixedly connected to the side wall of the base (6). A connecting plate (8) is rotatably connected to the top of the connecting seat (7) via a pin. A connecting block (9) is fixedly connected to the outer wall of the connecting plate (8). A connecting groove (10) is sleeved on the outer wall of the connecting block (9). The connecting groove (10) is opened on the side wall of the box cover (2).

3. A food packaging box that can be easily heated according to claim 1, characterized in that: A limiting ring (11) is fixedly connected to the outer wall of the box body (1). A limiting groove (12) is engaged with the outer wall of the limiting ring (11). The limiting groove (12) is opened on the inner wall of the box cover (2). A sealing ring (13) is provided below the limiting groove (12). The sealing ring (13) is fixedly connected to the inner wall of the box cover (2).

4. A food packaging box that can be easily heated according to claim 1, characterized in that: The top of the lid (2) is provided with a vent (14).

5. A food packaging box that can be easily heated according to claim 1, characterized in that: The box body (1) has a hollow layer (15) inside.

6. A food packaging box that can be easily heated according to claim 2, characterized in that: An anti-slip protrusion (16) is provided above the connecting block (9), and the anti-slip protrusion (16) is fixedly connected to the outer wall of the connecting plate (8).