Instant food packaging tin
By introducing a removable outer heating shell and inner liner into ready-to-eat food packaging cans, using quicklime to heat the inner liner, and equipping it with a heat insulation pad and vent, the problem of inconvenience in reusing packaging cans in existing technologies is solved, achieving improvements in convenience and environmental friendliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG BAICHENG FRESH FOOD (GRP) SUPPLY CHAIN CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-28
AI Technical Summary
Existing ready-to-eat food packaging cans are not convenient to reuse, especially the addition of quicklime, which affects the convenience and environmental friendliness of the equipment.
A packaging can comprising an inner liner and a detachable outer heating shell has been designed. Quicklime can be placed inside the outer heating shell, and water can be added through a water inlet to heat the inner liner. The can be reused after the reaction. The outer heating shell is equipped with a heat insulation pad and an exhaust vent to improve safety and convenience.
It enables convenient reuse of packaging cans, increases energy conservation and environmental protection, improves safety and stability during use, and enhances user protection.
Smart Images

Figure CN224171429U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of food packaging technology, specifically ready-to-eat food packaging cans. Background Technology
[0002] Ready-to-eat foods refer to convenient foods that require no complicated cooking process and can be eaten simply by heating or opening the package. They play an increasingly important role in modern life. Ready-to-eat foods come in a wide variety, and through modern food processing technology, they not only retain their original flavor but also significantly extend their shelf life. The convenience of ready-to-eat foods meets the needs of people with fast-paced lifestyles, making them especially suitable for office workers, students, and travelers. As an important carrier of ready-to-eat foods, the design and materials of the packaging cans are crucial for food preservation and transportation. Ready-to-eat food packaging cans are typically made of metal or plastic, possessing good sealing, pressure resistance, and barrier properties, effectively preventing microbial contamination and food oxidation, ensuring the freshness and safety of food during long-term storage.
[0003] For example, application CN211686137U discloses a ready-to-eat food packaging can, including an outer shell, an inner liner, a top cover, and a spoon; the inner liner is located inside the outer shell, and there is a gap between the outer shell and the inner liner. The bottom of the gap between the outer shell and the inner liner is filled with quicklime. A water inlet is opened on the side wall of the outer shell, and a plug is detachably connected to the water inlet. Multiple vent holes are opened at the top of the outer shell; the top cover is detachably connected to the top of the outer shell, and a spoon hole is opened in the middle of the top cover, with threads inside the spoon hole; the beneficial effects of this utility model are: the packaging can can heat itself without being placed in a steamer for heating, improving heating efficiency and serving speed; the handle of the spoon can change color according to the temperature change of the middle of the food, so that the heating degree can be known in time; the metal spoon body can quickly transfer heat.
[0004] However, the packaging cans in this application are not convenient to reuse, making it easy to repeatedly add quicklime, which makes the overall device less convenient. Utility Model Content
[0005] The purpose of this application is to provide a ready-to-eat food packaging can to solve the problems mentioned above.
[0006] The technical solution adopted in this application is as follows: a ready-to-eat food packaging can, including an inner liner, a detachable outer heating shell is provided on the outside of the inner liner, an upper sealing ring is fixedly installed on the top of the outer heating shell, an upper edge is fixedly connected to the top of the inner liner, a sealing thread groove is provided on the lower surface of the upper edge where it is adapted to the upper sealing ring, a sealing gasket is provided on the inner wall of the sealing thread groove, and the sealing gasket abuts against the top of the upper sealing ring.
[0007] By adopting the above technical solution, quicklime is placed inside the outer heating shell, and then the inner tank and the outer heating shell are tightened and fixed. Water is then added to the inside of the outer heating shell through the water inlet. After the two react, the inner tank will be heated. After heating is finished, the inner tank and the outer heating shell are unscrewed, and the wastewater can be poured out and reused. This increases the convenience of using the whole device and makes the device reusable, which is more energy-saving and environmentally friendly.
[0008] In a preferred embodiment, a heat insulation pad is provided on the inner side of the outer wall of the outer heating housing, and the heat insulation pad is a PET heat insulation pad.
[0009] By adopting the above technical solution, the heat insulation pad is a PET heat insulation pad, which prevents the outside of the outer heating shell from getting too hot during the heating process, thus increasing the protection for the user.
[0010] In a preferred embodiment, the top of the external heating housing has multiple vent holes.
[0011] By adopting the above technical solution, it is easier to remove water vapor during the heating process, thus improving the safety and reliability during use.
[0012] In a preferred embodiment, a water inlet hole is provided at the bottom of the external heating housing.
[0013] By adopting the above technical solution, a piston is installed at the water inlet, which facilitates water addition and improves the convenience of use.
[0014] In a preferred embodiment, a tank base is fixedly installed at the bottom of the external heating shell, and a counterweight is provided at the center of the tank base.
[0015] By adopting the above technical solution, the overall counterweight of the tank base is increased, which improves the placement stability of the inner liner and the outer heating shell after assembly.
[0016] In a preferred embodiment, the counterweight is provided with anti-slip rubber particles on its exterior.
[0017] By adopting the above technical solution, the placement stability of the inner liner and the outer heating shell after assembly is improved, so that they will not easily slip.
[0018] In a preferred embodiment, a top cover is provided above the inner liner, an insertion hole is provided at the center of the top cover, and a lifting handle is fixedly installed on the outer surface of the top cover.
[0019] By adopting the above technical solution, a temperature-sensitive color-changing appliance can be inserted through the insertion hole to display the temperature, thus improving the convenience of the overall use process.
[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0021] In this application, quicklime is placed inside the outer heating shell, and then the inner tank and the outer heating shell are tightened and fixed. Water is then added to the inside of the outer heating shell through the water inlet. After the two react, the inner tank will be heated. After heating is finished, the inner tank and the outer heating shell are unscrewed, and the wastewater can be poured out and reused. This increases the convenience of using the whole device and makes the device reusable, which is more energy-saving and environmentally friendly. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the inner liner structure of this application;
[0023] Figure 2 This is a schematic diagram of the external heating shell structure in this application;
[0024] Figure 3 This is a schematic diagram of the bottom structure of the inner liner in this application;
[0025] Figure 4 This is a schematic diagram of the overall structure of the packaging can in this application;
[0026] Figure 5 For this application Figure 3 Enlarged view of point A in the middle;
[0027] Figure 6 This is a schematic diagram of the tank base structure in this application.
[0028] The markings in the diagram are: 1. Inner tank; 2. Upper edge; 3. Sealing threaded groove; 4. Top cover; 5. Insertion hole; 6. Lifting handle; 7. Outer heating shell; 8. Upper sealing ring; 9. Heat insulation pad; 10. Vent; 11. Tank base; 12. Sealing gasket; 13. Anti-slip rubber particles; 14. Counterweight; 15. Water filling hole. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] Reference Figure 1-6 ,
[0031] Example:
[0032] The ready-to-eat food packaging can includes an inner liner 1 and a detachable outer heating shell 7. An upper sealing ring 8 is fixedly installed on the top of the outer heating shell 7. An upper edge 2 is fixedly connected to the top of the inner liner 1. A sealing thread groove 3 is provided on the lower surface of the upper edge 2 where it matches the upper sealing ring 8. A sealing gasket 12 is provided on the inner wall of the sealing thread groove 3, and the sealing gasket 12 abuts against the top of the upper sealing ring 8. After quicklime is placed inside the outer heating shell 7, the inner liner 1 and the outer heating shell 7 are tightened and fixed. Water is then added to the inside of the outer heating shell 7 through the water inlet 15. After the two react, the inner liner 1 is heated. After heating, the inner liner 1 and the outer heating shell 7 are unscrewed, and the wastewater can be poured out and reused, thereby increasing the convenience of the overall device and making the device reusable, which is more energy-saving and environmentally friendly.
[0033] A heat insulation pad 9 is provided on the inner side of the outer wall of the outer heating shell 7. The heat insulation pad 9 is a PET heat insulation pad, which prevents the outside of the outer heating shell 7 from getting too hot during the heating process, thus increasing the protection for the user.
[0034] The top of the external heating housing 7 has multiple vent holes 10, which facilitate the discharge of water vapor during the heating process and improve the safety and reliability during use.
[0035] The bottom of the external heating housing 7 is provided with a water inlet hole 15, and a piston is provided at the water inlet hole 15 to facilitate water addition and improve the convenience of use.
[0036] The bottom of the outer heating shell 7 is fixedly installed with a tank base 11. A counterweight 14 is set at the center of the tank base 11, which increases the overall counterweight of the tank base 11 and improves the placement stability of the inner liner 1 and the outer heating shell 7 after assembly.
[0037] The counterweight 14 is provided with anti-slip rubber particles 13 on the outside, which improves the stability of the inner liner 1 and the outer heating shell 7 after assembly, so that they will not easily slip.
[0038] A top cover 4 is provided on the top of the inner liner 1. An insertion hole 5 is provided in the center of the top cover 4. A lifting handle 6 is fixedly installed on the outer surface of the top cover 4. A temperature-sensitive color-changing appliance can be inserted through the insertion hole 5 to display the temperature, thereby improving the convenience of the overall use.
[0039] The implementation principle of this application's ready-to-eat food packaging can is as follows: During use, quicklime is placed inside the outer heating shell 7, and then the inner liner 1 and the outer heating shell 7 are tightened and fixed. Water is then added to the inside of the outer heating shell 7 through the water inlet 15. After the two react, the inner liner 1 will be heated. After heating is finished, the inner liner 1 and the outer heating shell 7 are unscrewed, and the wastewater can be poured out and reused, thereby increasing the convenience of the overall device during use and making the device reusable, which is more energy-saving and environmentally friendly.
[0040] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A ready-to-eat food packaging can, comprising an inner liner (1), characterized in that: The inner liner (1) is provided with a detachable outer heating shell (7). An upper sealing ring (8) is fixedly installed on the top of the outer heating shell (7). An upper edge (2) is fixedly connected to the top of the inner liner (1). A sealing thread groove (3) is provided at the lower surface of the upper edge (2) where it is adapted to the upper sealing ring (8). A sealing gasket (12) is provided on the inner wall of the sealing thread groove (3), and the sealing gasket (12) abuts against the top of the upper sealing ring (8).
2. The ready-to-eat food packaging can as described in claim 1, characterized in that: The outer wall of the outer heating shell (7) is provided with a heat insulation pad (9), which is a PET heat insulation pad.
3. The ready-to-eat food packaging can as described in claim 1, characterized in that: The top of the external heating housing (7) is provided with multiple exhaust holes (10).
4. The ready-to-eat food packaging can as described in claim 1, characterized in that: The bottom of the external heating housing (7) is provided with a water inlet (15).
5. The ready-to-eat food packaging can as described in claim 1, characterized in that: The bottom of the external heating shell (7) is fixedly installed with a tank base (11), and a counterweight (14) is provided at the center of the tank base (11).
6. The ready-to-eat food packaging can as described in claim 5, characterized in that: The counterweight (14) is provided with anti-slip rubber particles (13) on its exterior.
7. The ready-to-eat food packaging can as described in claim 1, characterized in that: A top cover (4) is provided above the inner liner (1), and an insertion hole (5) is provided at the center of the top cover (4). A lifting handle (6) is fixedly installed on the outer surface of the top cover (4).
Citation Information
Patent Citations
Instant food packaging tin
CN211686137U