Self-heating rice energy-saving heating device integrated with heat energy recycling

Abstract

The utility model relates to the technical field of self-heating rice, concretely to integrated heat energy recycling's self-heating rice energy -conserving type heating device, including heat preservation shell and circulating device, the upper surface of heat preservation shell is equipped with the shell cover, and the inner wall of heat preservation shell is provided with circulating device, and circulating device includes support disc, and the inner wall of heat preservation shell is fixedly connected with support disc, and the center of support disc is hollowly provided, and the upper surface of support disc is inserted with inner bag, and the surface of inner bag is fixedly connected with sealing sleeve, and sealing sleeve is equipped with support disc, and the surface of support disc is fixedly connected with round cover, and round cover penetrates support disc, and the inner wall of shell cover is provided with cavity, the utility model, the steam is guided to the top of inner bag with the pipe, realizes two -way heating up and down, solves the problem that traditional self-heating rice is " upper cold lower hot " or " bottom burnt, top undercooked", improves rice heating uniformity, forms the steam circulation path, prolongs the residence time of hot air around the inner bag, reduces the direct loss of heat.

Description

Technical Field

[0001] This utility model relates to the field of self-heating rice technology, and in particular to an energy-saving heating device for self-heating rice that integrates heat energy recycling. Background Technology

[0002] Self-heating rice, also known as convenient rice, is a pre-packaged staple food produced on a large industrial scale. It can be easily prepared by using the built-in heating pack. Its flavor, texture, and appearance are similar to ordinary rice. The self-heating rice comes with a heating pack that heats up rapidly within 3-5 seconds after contact with water, reaching a temperature of over 150℃ and a steam temperature of 200℃. It can keep warm for up to 3 hours and can easily cook raw rice into cooked rice. Its heating process is pollution-free and low-cost. When using it, simply place the heating pack at the bottom of the food container, add a cup of cold water, and you can quickly get steaming hot rice. It is suitable for business travelers, office workers, and outdoor adventure groups for emergency or temporary meals in situations where cooking is inconvenient.

[0003] However, most existing self-heating rice heating materials and mechanisms have limitations. Most place the heating pack at the bottom of the inner pot, and the heat released by the heating pack is concentrated and short-lived, making it difficult to provide continuous heat. In addition, the steam cannot penetrate the rice evenly, resulting in insufficient heating in some areas. Utility Model Content

[0004] The purpose of this invention is to address the limitations of existing self-heating rice heating materials and mechanisms, which often place the heating pack at the bottom of the inner pot, resulting in concentrated and short-duration heat release that is difficult to provide continuous heating. Furthermore, the steam cannot penetrate the rice evenly, leading to insufficient heating in certain areas. This invention proposes an energy-saving self-heating rice heating device that integrates thermal energy recycling.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an energy-saving self-heating rice heating device integrating heat energy recycling, comprising an insulation shell and a circulation device. A shell cover is fitted onto the upper surface of the insulation shell. The circulation device is disposed within the inner wall of the insulation shell and includes a support plate fixedly connected to the inner wall of the insulation shell. The support plate has a hollow center. An inner liner is inserted into the upper surface of the support plate. A sealing sleeve is fixedly connected to the surface of the inner liner and fits onto the support plate. A circular sleeve is fixedly connected to the surface of the support plate, penetrating the support plate. A cavity is formed in the inner wall of the shell cover. An insertion tube is fixedly connected to the lower surface of the shell cover and inserted into the circular sleeve. An air outlet is formed on the lower surface of the shell cover. By setting up the circulation device, the tube guides steam to the top of the inner liner, achieving bidirectional heating from top to bottom, thus solving the problems of traditional self-heating rice being "cold at the top and hot at the bottom" or "burnt at the bottom and undercooked at the top." This addresses the issue of uneven heating of rice by creating a steam circulation path, extending the residence time of hot air around the inner pot, and reducing direct heat loss.

[0006] Preferably, the diameter of the insert is smaller than that of the sleeve, and the air outlet is located directly above the inner pot. By setting the insert, a steam circulation channel is constructed to achieve directional heating of the rice at the top of the inner pot, thus solving the problems of "cold at the top and hot at the bottom" and uneven cooking of traditional self-heating rice.

[0007] Preferably, the inner pot has a notch on one side, and the insulation shell has an exhaust port on the side near the notch. By setting the notch, steam is generated from the heating pack, first heating the food through the bottom of the inner pot, then entering the cavity of the insulation shell through the round sleeve and the insert, spraying from the exhaust port to the top of the inner pot to heat the rice, and finally flowing into the exhaust port through the notch and being discharged.

[0008] Preferably, a vertical rod is fixedly connected to one side of the shell cover, a stop bar is fixedly connected to the lower surface of the vertical rod, a rotating shaft is fixedly connected to the side of the insulation shell near the stop bar, a circular plate is fixedly connected to the surface of the rotating shaft, and an arc ring is rotatably connected to the surface of the rotating shaft. By setting the arc ring, the arc ring provides radial elastic force through a torsion spring. After the shell cover and the insulation shell are fastened together, the spring drives the arc ring to expand outward and abut against the stop bar, forming a stable snap-fit ​​connection, preventing the shell cover from accidentally falling off, and ensuring that steam circulates and heats within the closed space.

[0009] Preferably, the surface of the arc ring has a groove, the stop rod is engaged with the arc ring, and the surface of the rotating shaft is fitted with a torsion spring. The two ends of the torsion spring are fixedly connected to the circular plate and the arc ring, respectively. By setting the torsion spring, when the shell cover and the heat preservation shell are fastened together, the torsion spring generates torque through elastic deformation, driving the arc ring to press tightly against the stop rod, forming a mechanical locking structure to prevent the shell cover from accidentally falling off or loosening, ensuring that steam does not leak out during the heating process and improving thermal efficiency.

[0010] Preferably, the bottom of the insulation shell is provided with a water injection component, which includes a water outlet located on one side of the insulation shell. A rubber rope is fixedly connected to the side of the insulation shell near the water outlet. By setting the water injection component, the water will automatically drain when the water level reaches a suitable height, without relying on scale lines or experience to judge, reducing the user's operational error rate and minimizing the impact of steam overflow due to adding too much water or affecting the heating effect due to adding too little water.

[0011] Preferably, a plug is fixedly connected to the side of the rubber rope away from the insulation shell. The plug is inserted into the water outlet. By setting the plug, after pulling the plug to open the water outlet, water is injected into the insulation shell until the water overflows from the water outlet, which is the optimal water volume. The physical overflow method intuitively prompts the user to stop injecting water, reducing the error of manual measurement or estimation that may lead to too much or too little water.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting up a circulation device, when in use, the food is poured into the inner pot, then the heating pack and water are placed at the bottom of the insulation shell, the inner pot is inserted into the support plate, and the sealing sleeve is fitted onto the support plate. At this time, the bottom of the inner pot is suspended directly above the heating pack. Then, the shell cover is fitted onto the insulation shell, the insertion tube is inserted into the round sleeve, and the arc ring is loosened. The torsion spring, freed from its restraint, generates elastic force that compresses the arc ring against the stop rod, fixing the insulation shell and the shell cover in place to prevent them from falling off. Subsequently, the heating pack begins to heat, and the steam first heats the bottom of the inner pot. As the steam increases, it enters the insertion tube through the round sleeve, then enters the cavity through the insertion tube, and then passes through the vent and sprays onto the top of the inner pot, heating the rice on the top of the inner pot. Then, it passes through the notch and is discharged through the exhaust port. By setting up a circulation device, the conduit guides the steam to the top of the inner pot, achieving bidirectional heating from top to bottom, solving the problems of traditional self-heating rice being "cold at the top and hot at the bottom" or "burnt at the bottom and undercooked at the top." This addresses the issue of uneven heating of rice by creating a steam circulation path, extending the residence time of hot air around the inner pot, and reducing direct heat loss.

[0014] 2. In this utility model, by setting a water injection component, when adding water to the heating pack, the rubber rope is pulled to move the plug away from the water outlet, and then water is added to the insulation shell. When the water flow is higher than the water outlet, water flows out, reminding the user that the water level has reached the appropriate position. Then the plug is reinserted into the water outlet. By setting a water injection component, the water is automatically drained when the water level reaches the appropriate height, without relying on scale lines or experience to judge, reducing the user's operation error rate and reducing the impact of steam overflow due to adding too much water or the impact of adding too little water on the heating effect. Attached Figure Description

[0015] Figure 1A three-dimensional structural diagram of a self-heating rice energy-saving heating device with integrated heat energy recycling proposed in this utility model;

[0016] Figure 2 This utility model presents a cross-sectional structural schematic diagram of a self-heating rice energy-saving heating device that integrates thermal energy recycling.

[0017] Figure 3 A schematic diagram of the upright structure of the self-heating rice energy-saving heating device with integrated heat energy recycling proposed in this utility model;

[0018] Figure 4 This utility model proposes an energy-saving self-heating rice heating device that integrates heat energy recycling. Figure 3 A magnified structural diagram at point A;

[0019] Figure 5 This invention presents a schematic diagram of the water injection component structure of a self-heating rice energy-saving heating device that integrates thermal energy recycling.

[0020] Legend: 1. Insulation shell; 2. Shell cover; 3. Circulation device; 31. Inner liner; 32. Sealing sleeve; 33. Support plate; 34. Circular sleeve; 35. Cavity; 36. Insert tube; 37. Air outlet; 38. Water injection assembly; 381. Water outlet; 382. Plug; 383. Rubber rope; 39. Upright pole; 310. Stop bar; 311. Arc ring; 312. Rotating shaft; 313. Circular plate; 314. Torsion spring; 315. Notch; 316. Exhaust port. Detailed Implementation

[0021] Please see Figures 1-5 This utility model provides a technical solution: an energy-saving self-heating rice heating device integrating heat energy recycling, including a heat preservation shell 1 and a circulation device 3. The upper surface of the heat preservation shell 1 is covered with a shell cover 2, and the circulation device 3 is disposed in the inner wall of the heat preservation shell 1.

[0022] In this implementation scheme: the circulation device 3 includes a support plate 33, which is fixedly connected to the inner wall of the insulation shell 1. The center of the support plate 33 is hollow. An inner liner 31 is inserted into the upper surface of the support plate 33. A sealing sleeve 32 is fixedly connected to the surface of the inner liner 31 and fits onto the support plate 33. A circular sleeve 34 is fixedly connected to the surface of the support plate 33 and passes through the support plate 33. A cavity 35 is opened in the inner wall of the shell cover 2. An insertion tube 36 is fixedly connected to the lower surface of the shell cover 2 and is inserted into the circular sleeve 34. An air outlet 37 is opened in the lower surface of the shell cover 2. By setting up the circulation device 3, the conduit guides the steam to the top of the inner liner 31, realizing bidirectional heating from top to bottom. This solves the problem of "cold at the top and hot at the bottom" or "burnt at the bottom and undercooked at the top" in traditional self-heating rice, improves the uniformity of rice heating, forms a steam circulation path, prolongs the residence time of hot air around the inner liner 31, and reduces direct heat loss.

[0023] Specifically, the diameter of the insert 36 is smaller than that of the sleeve 34, and the air outlet 37 is located directly above the inner pot 31. By setting the insert 36, a water vapor circulation channel is constructed to achieve directional heating of the rice at the top of the inner pot 31, thus solving the problems of traditional self-heating rice being "cold at the top and hot at the bottom" and unevenly cooked.

[0024] Specifically, a notch 315 is provided on one side of the inner pot 31, and an exhaust port 316 is provided on the side of the insulation shell 1 near the notch 315. By setting the notch 315, steam is generated from the heating pack, first heating the food through the bottom of the inner pot 31, then entering the cavity 35 of the insulation shell 1 through the round sleeve 34 and the insert 36, spraying from the exhaust port 37 to the top of the inner pot 31 to heat the rice, and finally flowing into the exhaust port 316 through the notch 315 to be discharged.

[0025] Specifically, a vertical rod 39 is fixedly connected to one side of the shell cover 2, and a baffle 310 is fixedly connected to the lower surface of the vertical rod 39. A rotating shaft 312 is fixedly connected to the side of the insulation shell 1 near the baffle 310. A circular plate 313 is fixedly connected to the surface of the rotating shaft 312, and an arc ring 311 is rotatably connected to the surface of the rotating shaft 312. By setting the arc ring 311, the arc ring 311 provides radial elastic force through the torsion spring 314. After the shell cover 2 and the insulation shell 1 are fastened together, the spring drives the arc ring 311 to expand outward and abut against the baffle 310, forming a stable snap-fit ​​connection to prevent the shell cover 2 from accidentally falling off and to ensure that the steam circulates and heats in the closed space.

[0026] Specifically, the surface of the arc ring 311 is provided with a slot, and the stop rod 310 is engaged with the arc ring 311. The surface of the rotating shaft 312 is fitted with a torsion spring 314. The two ends of the torsion spring 314 are fixedly connected to the circular plate 313 and the arc ring 311 respectively. By setting the torsion spring 314, when the shell cover 2 is fastened with the heat insulation shell 1, the torsion spring 314 generates torque through elastic deformation, driving the arc ring 311 to press tightly against the stop rod 310, forming a mechanical locking structure to prevent the shell cover 2 from accidentally falling off or loosening, ensuring that steam does not leak out during the heating process and improving thermal efficiency.

[0027] Specifically, a water injection component 38 is provided at the bottom of the insulation shell 1. The water injection component 38 includes a water outlet 381, which is located on one side of the insulation shell 1. A rubber rope 383 is fixedly connected to the side of the insulation shell 1 near the water outlet 381.

[0028] In this embodiment: by setting the water injection component 38, the water will be automatically drained when the water level reaches a suitable height, without relying on scale lines or experience to judge, reducing the user's operation error rate and reducing the impact of steam overflow or insufficient water on the heating effect.

[0029] Specifically, a plug 382 is fixedly connected to the side of the rubber rope 383 away from the insulation shell 1, and the plug 382 is inserted into the water outlet 381.

[0030] In this embodiment: by setting the plug 382, ​​after pulling the plug 382 to open the water outlet 381, water is injected into the insulation shell 1 until the water overflows from the water outlet 381, which is the optimal water volume. The user is intuitively prompted to stop injecting water through physical overflow, reducing the error of manual measurement or estimation that may lead to too much or too little water.

[0031] Working principle: By setting up the circulation device 3, when in use, the food is poured into the inner pot 31, and then the heating pack and water are placed at the bottom of the insulation shell 1. The inner pot 31 is inserted into the support plate 33, and the sealing sleeve 32 is fitted onto the support plate 33. At this time, the bottom of the inner pot 31 is suspended directly above the heating pack. Then, the shell cover 2 is fitted onto the insulation shell 1, the insertion tube 36 is inserted into the round sleeve 34, and the arc ring 311 is released. The torsion spring 314 loses its restraint and generates elastic force to compress the arc ring 311 and the stop rod 310, fixing the insulation shell 1 and the shell cover 2 to prevent them from falling off. Then the heating pack starts heating. The steam first heats the bottom of the inner pot 31. As more and more steam is generated, it enters the insertion tube 36 through the sleeve 34, enters the cavity 35 through the insertion tube 36, and then passes through the air outlet 37 and is sprayed on the top of the inner pot 31 to heat the rice on the top of the inner pot 31. Then it passes through the notch 315 and is discharged through the exhaust port 316. By setting up the circulation device 3, the conduit guides the steam to the top of the inner pot 31, realizing bidirectional heating from top to bottom. This solves the problem of traditional self-heating rice being "cold on top and hot on the bottom" or "burnt at the bottom and undercooked at the top". It improves the uniformity of rice heating, forms a steam circulation path, prolongs the residence time of hot air around the inner pot 31, and reduces direct heat loss.

[0032] By setting the water injection component 38, when water is added to the heating pack, the rubber rope 383 is pulled to move the plug 382 away from the water outlet 381, and then water is added to the insulation shell 1. When the water flow is higher than the water outlet 381, water flows out, reminding the user that the water level has reached the appropriate position. Then the plug 382 is reinserted into the water outlet 381. By setting the water injection component 38, water is automatically drained when the water level reaches the appropriate height, without relying on scale lines or experience to judge, reducing the user's operation error rate and reducing the impact of steam overflow due to adding too much water or the impact of adding too little water on the heating effect.

Claims

1. An energy-saving self-heating rice heating device integrating heat energy recycling, comprising an insulation shell (1) and a circulation device (3), characterized in that: The upper surface of the heat-insulating shell (1) is fitted with a shell cover (2). The circulation device (3) is set in the inner wall of the heat-insulating shell (1). The circulation device (3) includes a support plate (33). The support plate (33) is fixedly connected to the inner wall of the heat-insulating shell (1). The center of the support plate (33) is hollow. An inner liner (31) is inserted into the upper surface of the support plate (33). A sealing sleeve (32) is fixedly connected to the surface of the inner liner (31). The sealing sleeve (32) is fitted with the support plate (33). A round sleeve (34) is fixedly connected to the surface of the support plate (33). The round sleeve (34) passes through the support plate (33). A cavity (35) is opened in the inner wall of the shell cover (2). An insertion tube (36) is fixedly connected to the lower surface of the shell cover (2). The insertion tube (36) is inserted into the round sleeve (34). An air outlet (37) is opened in the lower surface of the shell cover (2).

2. The energy-saving self-heating rice heating device with integrated thermal energy recycling according to claim 1, characterized in that: The diameter of the insertion tube (36) is smaller than that of the sleeve (34), and the air outlet (37) is located directly above the inner liner (31).

3. The energy-saving self-heating rice heating device with integrated thermal energy recycling according to claim 2, characterized in that: The inner liner (31) has a notch (315) on one side, and the heat insulation shell (1) has an exhaust port (316) on the side near the notch (315).

4. The energy-saving self-heating rice heating device with integrated thermal energy recycling according to claim 1, characterized in that: A vertical rod (39) is fixedly connected to one side of the shell cover (2), and a stop bar (310) is fixedly connected to the lower surface of the vertical rod (39). A rotating shaft (312) is fixedly connected to the side of the heat insulation shell (1) near the stop bar (310). A circular plate (313) is fixedly connected to the surface of the rotating shaft (312), and an arc ring (311) is rotatably connected to the surface of the rotating shaft (312).

5. The energy-saving self-heating rice heating device with integrated thermal energy recycling according to claim 4, characterized in that: The surface of the arc ring (311) is provided with a slot, the stop rod (310) is engaged with the arc ring (311), and the surface of the rotating shaft (312) is fitted with a torsion spring (314). The two ends of the torsion spring (314) are fixedly connected to the circular plate (313) and the arc ring (311) respectively.

6. The energy-saving self-heating rice heating device with integrated thermal energy recycling according to claim 1, characterized in that: The bottom of the insulation shell (1) is provided with a water injection component (38), the water injection component (38) includes a water outlet (381), the water outlet (381) is opened on one side of the insulation shell (1), and a rubber rope (383) is fixedly connected to the side of the insulation shell (1) near the water outlet (381).

7. The energy-saving self-heating rice heating device with integrated thermal energy recycling according to claim 6, characterized in that: A plug (382) is fixedly connected to the side of the rubber rope (383) away from the heat insulation shell (1), and the plug (382) is inserted into the water outlet (381).

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