Multi-stage chemical reaction self-heating long-acting heat preservation structure for rice

Abstract

The utility model relates to the technical field of self-heating rice, in particular to a multi-section type chemical reaction self-heating rice long-acting heat preservation structure which comprises a shell and a sealing device, a lunch box is arranged on the inner wall of the shell, a box cover is sleeved on the upper surface of the shell, the sealing device is arranged inside the shell and comprises a partition plate, and the partition plate is fixedly connected with the shell. A heat preservation cavity is formed in the center of the partition plate and the center of the outer shell, an air inlet is formed in the upper surface of the heat preservation cavity, the lunch box is in contact connection with the partition plate, an exhaust port is formed in one side of the outer shell and communicated with the heat preservation cavity, and a filter screen is fixedly connected to the inner wall of the exhaust port. A relatively closed space is formed, heat loss to the outside in a convection and radiation mode is effectively reduced, heat in the heat preservation cavity can be kept for a longer time, the heat preservation effect of the self-heating rice is improved, and the edible warm time of the rice is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of self-heating rice technology, and in particular to a long-lasting heat preservation structure for multi-stage chemical reaction self-heating rice. Background Technology

[0002] Multi-stage chemical reaction self-heating rice is an innovative and convenient food. Its unique feature is that the built-in heating pack uses a multi-stage chemical reaction for heating. The heating pack usually contains quicklime, calcium oxide, sodium carbonate, etc. When it comes into contact with water, the quicklime reacts rapidly with the water to produce slaked lime, calcium hydroxide, which releases a large amount of initial heat instantly. This is the first stage of the reaction. Then, alkali metals, iron oxide powder, electrolytic aluminum powder, and other components further react with water, continuously releasing a large amount of heat and generating flammable gas. The steam temperature can reach 200°C in a short time. This constitutes the subsequent reaction stage. Relying on this multi-stage chemical reaction, rice and dishes can be heated to a suitable temperature efficiently and continuously, allowing people to easily enjoy hot meals anytime, anywhere.

[0003] However, self-heating rice loses heat quickly after heating, making it difficult to maintain the temperature for a long time. Existing insulation structures are simple and mostly use ordinary insulation materials, which are not effective in blocking heat conduction, convection and radiation, causing heat to dissipate rapidly to the outside, making it difficult for rice to maintain a suitable eating temperature for a long time. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the existing technology of self-heating rice where heat is quickly lost after heating and it is difficult to maintain the temperature for a long time. The existing insulation structure is simple and mostly uses ordinary heat insulation materials, which are difficult to effectively block heat conduction, convection and radiation, resulting in heat loss to the outside world and making it difficult for rice to maintain a suitable eating temperature for a long time. The proposed invention is a multi-stage chemical reaction self-heating rice long-lasting heat preservation structure.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a multi-stage chemical reaction self-heating rice long-lasting heat preservation structure, including an outer shell and a sealing device. A rice container is installed on the inner wall of the outer shell, and a lid is fitted onto the upper surface of the outer shell. The sealing device is located inside the outer shell and includes a partition plate fixedly connected to the outer shell. A heat preservation cavity is formed at the center of the partition plate and the outer shell, with an air inlet on the upper surface of the heat preservation cavity. The rice container contacts the partition plate. An exhaust port is formed on one side of the outer shell and communicates with the heat preservation cavity. A filter screen is fixedly connected to the inner wall of the exhaust port. By setting the sealing device, the lid and the outer shell are sealed together and fixed by a connecting rod, forming a relatively enclosed space. This effectively reduces heat loss to the outside through convection and radiation, allowing the heat in the heat preservation cavity to be retained for a longer time, improving the heat preservation effect of the self-heating rice and extending the warm time for consumption.

[0006] Preferably, there are two partitions, which are symmetrically arranged. By setting the partitions, the concentrated heat of the steam can be dispersed, reducing local overheating of the lunch box. At the same time, the heat can be evenly conducted through its own material, making the food heat more evenly.

[0007] Preferably, an assembly rod is fixedly connected to one side of the lid, and a connecting rod is rotatably connected to the lower surface of the assembly rod. By setting the connecting rod, rotating the connecting rod to make it abut against the surface of the outer shell, the lid is firmly pressed onto the outer shell to form a rigid connection. This prevents the lid from popping open or leaking air due to steam pressure during heating, ensuring stable air pressure in the heat preservation cavity and concentrating heat for heating food.

[0008] Preferably, the surface of the connecting rod is provided with anti-slip texture, and the connecting rod abuts against the outer shell.

[0009] Preferably, the surface of the lunchbox is provided with a picking component, which includes a slide groove formed on the surface of the lunchbox. A slider is slidably connected to the inner wall of the slide groove, and a pull rod is rotatably connected to the surface of the slider. By setting up the picking component, after the rice is heated, the user can take out the lunchbox by grasping the protrusion and rotating the pull rod, without directly contacting the hot surface of the lunchbox. This greatly reduces the risk of the user being burned, ensures the safety of operation, and improves the user experience.

[0010] Preferably, one end of the pull rod is fixedly connected to a protrusion, and the protrusion and the pull rod are arranged in a "T" shape.

[0011] Preferably, there are two pull rods, which are respectively set at both ends of the lunch box. By setting the pull rods, the pull rods are rotated by rotating the protrusions, so that the pull rods extend from the side of the outer shell and support the bottom of the lunch box. The user does not need to directly touch the hot surface of the lunch box, but can simply hold the pull rods to take out the lunch box smoothly. This is especially suitable for scenarios where the outer shell temperature is high after heating.

[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 a sealing device, when heating, the food is poured into the lunch box, an appropriate amount of water is added, then the heating pack is placed at the bottom of the outer shell, and another appropriate amount of water is added. The lunch box is placed on the partition, which supports the lunch box. Then, the lid is fitted and sealed to the outer shell, and the connecting rod is rotated to abut against the outer shell, fixing the lid to the outer shell. Then, the heating pack heats up and generates steam. The steam passes through the lunch box and enters the heat preservation chamber through the air inlet. The temperature in the heat preservation chamber rises rapidly. Then, the gas is discharged through the exhaust port and filter. The residual temperature in the heat preservation chamber heats the partition and slows down the heat loss. By setting a sealing device, the lid and the outer shell are fitted and sealed, and fixed by the connecting rod, forming a relatively closed space, which effectively reduces the heat loss to the outside through convection and radiation, allowing the heat in the heat preservation chamber to be retained for a longer time, improving the heat preservation effect of the self-heating rice and extending the warm time of the rice.

[0014] 2. In this utility model, by setting up a picking component, after the rice is heated, the rotating connecting rod separates from the outer shell, and the lid can be removed. Then, by grasping the protrusion, the protrusion drives the pull rod to rotate, and the lunch box can be removed using the pull rod. This reduces the risk of users being burned when picking up the lunch box. By setting up a picking component, after the rice is heated, the user can take out the lunch box by grasping the protrusion and driving the pull rod to rotate, without directly contacting the hot surface of the lunch box, which greatly reduces the risk of users being burned, ensures the safety of operation, and improves the user experience. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the multi-segment chemical reaction self-heating rice long-lasting heat preservation structure proposed in this utility model;

[0016] Figure 2 A side view of the multi-stage chemical reaction self-heating rice long-lasting heat preservation structure proposed in this utility model;

[0017] Figure 3 A schematic diagram of the sealing device for the multi-stage chemical reaction self-heating rice long-term heat preservation structure proposed in this utility model;

[0018] Figure 4 This invention proposes a multi-stage chemical reaction self-heating rice long-lasting heat preservation structure. Figure 3 A magnified structural diagram at point A;

[0019] Figure 5 This is a cross-sectional structural diagram of the multi-stage chemical reaction self-heating rice long-term heat preservation structure proposed in this utility model.

[0020] Legend: 1. Outer shell; 2. Lunch box; 3. Lid; 4. Sealing device; 41. Insulation cavity; 42. Air inlet; 43. Exhaust outlet; 44. Filter screen; 45. Connecting rod; 46. Assembly rod; 47. Partition; 48. Retrieval component; 481. Pull rod; 482. Slider; 483. Protrusion; 484. Slide groove. Detailed Implementation

[0021] Please see Figures 1-5 This utility model provides a technical solution: a multi-stage chemical reaction self-heating rice long-lasting heat preservation structure, including an outer shell 1 and a sealing device 4. The inner wall of the outer shell 1 is provided with a rice box 2, the upper surface of the outer shell 1 is covered with a box lid 3, and the sealing device 4 is located inside the outer shell 1.

[0022] In this embodiment: the sealing device 4 includes a partition 47, which is fixedly connected to the outer shell 1. A heat preservation cavity 41 is formed in the center of the partition 47 and the outer shell 1. An air inlet 42 is formed on the upper surface of the heat preservation cavity 41. The rice box 2 is in contact with the partition 47. An exhaust port 43 is formed on one side of the outer shell 1. The exhaust port 43 is connected to the heat preservation cavity 41. A filter screen 44 is fixedly connected to the inner wall of the exhaust port 43. By setting the sealing device 4, the lid 3 is fitted and sealed to the outer shell 1 and fixed by the connecting rod 45, forming a relatively closed space. This effectively reduces the heat loss to the outside through convection and radiation, allowing the heat in the heat preservation cavity 41 to be retained for a longer time, improving the heat preservation effect of the self-heating rice and extending the warm time of the rice.

[0023] Specifically, there are two partitions 47, which are symmetrically arranged. By setting up the partitions 47, the concentrated heat of the steam can be dispersed, reducing local overheating of the lunch box 2. At the same time, the heat can be evenly conducted through its own material, making the food heat more evenly.

[0024] Specifically, an assembly rod 46 is fixedly connected to one side of the lid 3, and a connecting rod 45 is rotatably connected to the lower surface of the assembly rod 46. By setting the connecting rod 45, rotating the connecting rod 45 to make it press against the surface of the outer shell 1, the lid 3 is firmly pressed onto the outer shell 1 to form a rigid connection, preventing the lid 3 from popping open or leaking air due to steam pressure during heating, ensuring stable air pressure in the heat preservation cavity 41, and concentrating heat for heating food.

[0025] Specifically, the surface of the connecting rod 45 is provided with anti-slip texture, and the connecting rod 45 abuts against the outer casing 1.

[0026] Specifically, the surface of the lunch box 2 is provided with a taking component 48, which includes a slide 484. The slide 484 is formed on the surface of the lunch box 2, and a slider 482 is slidably connected to the inner wall of the slide 484. A pull rod 481 is rotatably connected to the surface of the slider 482.

[0027] In this embodiment: by setting up the picking component 48, after the rice is heated, the user can pick up the lunch box 2 by grasping the protrusion 483 and rotating the pull rod 481. This eliminates the need for direct contact with the hot surface of the lunch box 2, greatly reducing the risk of burns to the user, ensuring operational safety, and improving the user experience.

[0028] Specifically, one end of the pull rod 481 is fixedly connected to a protrusion 483, and the protrusion 483 and the pull rod 481 are arranged in a "T" shape.

[0029] Specifically, there are two levers 481, which are respectively located at both ends of the lunch box 2.

[0030] In this embodiment: by setting a pull rod 481, the pull rod 481 is rotated by rotating the protrusion 483, so that the pull rod 481 extends from the side of the outer shell 1 and supports the bottom of the lunch box 2. The user does not need to directly touch the hot surface of the lunch box 2. He only needs to hold the pull rod 481 to take out the lunch box 2 smoothly. This is especially suitable for scenarios where the outer shell 1 is hot after heating.

[0031] Working principle: By setting up the sealing device 4, during heating, the food is poured into the lunch box 2, and an appropriate amount of water is added. Then, the heating pack is placed at the bottom of the outer shell 1, and another appropriate amount of water is added. The lunch box 2 is placed on the partition 47, which lifts the lunch box 2. Then, the lid 3 is fitted and sealed to the outer shell 1, and the connecting rod 45 is rotated to abut against the outer shell 1, fixing the lid 3 to the outer shell 1. Then, the heating pack heats up and generates steam. The steam passes through the lunch box 2 and enters the heat preservation chamber 41 through the air inlet 42. The temperature rises rapidly, and then the gas is discharged through the exhaust port 43 and the filter screen 44. The residual temperature in the heat preservation cavity 41 heats the partition plate 47 and slows down the loss of heat. By setting the sealing device 4, the lid 3 and the outer shell 1 are fitted together and sealed, and fixed by the connecting rod 45, a relatively closed space is formed, which effectively reduces the loss of heat to the outside through convection and radiation, so that the heat in the heat preservation cavity 41 can be retained for a longer time, improve the heat preservation effect of self-heating rice, and extend the warm time of the rice that can be eaten.

[0032] By setting up the picking component 48, after the rice is heated, the connecting rod 45 can be rotated to separate from the outer shell 1, and the lid 3 can be removed. Then, by grasping the protrusion 483, the protrusion 483 drives the pull rod 481 to rotate, and the lunch box 2 can be removed using the pull rod 481. This reduces the risk of burns to the user when picking up the lunch box 2. By setting up the picking component 48, after the rice is heated, the user can remove the lunch box 2 by grasping the protrusion 483 to drive the pull rod 481 to rotate, without directly contacting the hot surface of the lunch box 2, which greatly reduces the risk of burns to the user, ensures the safety of operation, and improves the user experience.

Claims

1. A multi-stage chemical reaction self-heating rice long-lasting heat preservation structure, comprising an outer shell (1) and a sealing device (4), characterized in that: The inner wall of the outer shell (1) is provided with a lunch box (2), the upper surface of the outer shell (1) is covered with a lid (3), the sealing device (4) is located inside the outer shell (1), the sealing device (4) includes a partition (47), the partition (47) is fixedly connected to the outer shell (1), the partition (47) and the center of the outer shell (1) are provided with a heat preservation cavity (41), the upper surface of the heat preservation cavity (41) is provided with an air inlet (42), the lunch box (2) is in contact with the partition (47), the outer shell (1) is provided with an exhaust port (43) on one side, the exhaust port (43) is connected to the heat preservation cavity (41), and the inner wall of the exhaust port (43) is fixedly connected with a filter screen (44).

2. The multi-stage chemical reaction self-heating rice long-lasting heat preservation structure according to claim 1, characterized in that: There are two partitions (47), and the two partitions (47) are arranged symmetrically.

3. The multi-stage chemical reaction self-heating rice long-lasting heat preservation structure according to claim 1, characterized in that: An assembly rod (46) is fixedly connected to one side of the box cover (3), and a connecting rod (45) is rotatably connected to the lower surface of the assembly rod (46).

4. The multi-stage chemical reaction self-heating rice long-lasting heat preservation structure according to claim 3, characterized in that: The surface of the connecting rod (45) is provided with anti-slip texture, and the connecting rod (45) abuts against the outer shell (1).

5. The multi-stage chemical reaction self-heating rice long-lasting heat preservation structure according to claim 1, characterized in that: The surface of the lunch box (2) is provided with a taking component (48), the taking component (48) includes a slide (484), the slide (484) is opened on the surface of the lunch box (2), the inner wall of the slide (484) is slidably connected to a slider (482), and the surface of the slider (482) is rotatably connected to a pull rod (481).

6. The multi-stage chemical reaction self-heating rice long-lasting heat preservation structure according to claim 5, characterized in that: One end of the pull rod (481) is fixedly connected to a protrusion (483), and the protrusion (483) and the pull rod (481) are arranged in a "T" shape.

7. The multi-stage chemical reaction self-heating rice long-lasting heat preservation structure according to claim 6, characterized in that: There are two pull rods (481), which are respectively set at both ends of the lunch box (2).

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