Self-heating canister

Abstract

The utility model discloses a kind of self-heating canister, including shell and inner container, shell is set up with upper opening, the inside of shell is equipped with inner chamber, the inner wall of inner chamber is equipped with limit ring near the position of its bottom surface, reaction space is formed between limit ring and the bottom surface of inner chamber, for putting into heating reaction material;The inner wall of shell is equipped with inner thread part, inner thread part is in the upside of limit ring, inner container is movably clamped in inner chamber, inner container is located above limit ring, heat radiation distance is formed between inner container and limit ring, the middle lower part of the outer wall of inner container is equipped with outer thread part, outer thread part and inner thread part are threadingly engaged with each other, to realize the adjustment of heat radiation distance, the heating temperature size that the inner container is received is adjusted. Compared with traditional self-heating canister, heat radiation distance between inner container and heating reaction material can be adjusted according to use requirement, heating intensity is adjusted, excessive heating is avoided to scorch food, also can be carried out gentle heat preservation.

Description

Technical Field

[0001] This utility model relates to the field of food canning equipment technology, and in particular to a self-heating canning box. Background Technology

[0002] Self-heating canned food is a portable food container that can heat food without an external heat source, achieving its self-heating function by generating heat through a chemical reaction.

[0003] Traditional self-heating canned food generally includes an outer shell, an inner liner, and a reaction chamber. The inner liner is used to hold the food and is located in the upper middle part of the inner cavity of the outer shell. The reaction chamber is located at the bottom of the inner cavity of the outer shell and contains heating reaction materials. The heating reaction materials are mostly calcium oxide. When calcium oxide is mixed with water, it produces a chemical reaction that releases heat and radiates heat to the inner liner, thus achieving self-heating.

[0004] However, traditional self-heating canned foods often continue to release heat after the food is cooked, which can easily burn the food; in addition, it is impossible to use the residual heat from the heating reaction materials for heat preservation. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a self-heating canned food container that forms an adjustable heat radiation distance between the inner liner and the heating reaction material, thereby adjusting the heating intensity of the inner liner, thus avoiding scorching and keeping the food inside the inner liner warm.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a self-heating canned food box, comprising an outer shell and an inner liner. The outer shell is open at the top, and an inner cavity is provided inside the outer shell. A limiting ring is provided on the inner wall of the inner cavity near its bottom surface, forming a reaction space between the limiting ring and the bottom surface of the inner cavity for placing heating reaction materials. The inner wall of the outer shell is provided with an internal thread, which is located above the limiting ring. The inner liner is movably fitted into the inner cavity, and the inner liner is located above the limiting ring, forming a heat radiation distance between the inner liner and the limiting ring. The lower middle part of the outer wall of the inner liner is provided with an external thread, which engages with the internal thread to adjust the heat radiation distance, thereby adjusting the heating temperature received by the inner liner.

[0007] In a further technical solution, the bottom of the inner liner is fitted with a limiting ring for blocking and limiting. When the inner liner acts as a blocking element on the limiting ring, the heat radiation distance is minimized.

[0008] In a further technical solution, the height a of the reaction space is 3cm-8cm; the distribution height b of the internal thread is 1.5-2.5 times the height a; the inner liner has a food cavity with a height h of 15cm-30cm and a diameter of 10cm-15cm.

[0009] In a further technical solution, a steam flow channel is formed between the inner wall of the inner chamber and the outer wall of the inner liner, and the width of the steam flow channel is 0.5mm-2mm.

[0010] In a further technical solution, the inner wall of the inner chamber is provided with multiple steam distribution channels. The steam distribution channels are opened vertically at the internal thread and the limiting ring, and the steam distribution channels are respectively connected to the steam flow channel and the reaction space.

[0011] In a further technical solution, four steam distribution tanks are set up, and these four steam distribution tanks are set at equal intervals along the circumference.

[0012] In a further technical solution, the top of the inner liner always protrudes from the upper opening of the inner cavity, and the outer wall of the protruding part is formed with a textured surface to increase the gripping friction when twisting the inner liner.

[0013] In a further technical solution, the top of the inner liner is covered with a lid, the edge of which is formed with a downwardly extending rim; wherein, the inner side of the bottom edge of the rim is formed with a chamfer, which slides and guides the upper opening of the inner liner to improve the ease of closing the lid.

[0014] In a further technical solution, a handle is provided on the upper middle part of the outer wall of the shell.

[0015] In a further technical solution, a downwardly protruding support ring is formed at the bottom of the outer shell, with a height of 1mm-3mm.

[0016] The advantages of this invention compared to the prior art after adopting the above structure are: 1. The inner liner and outer shell are connected by threads to form an adjustable heat radiation distance, which can adjust the degree of heating of the inner liner, avoid overheating and burning food, and also use the residual heat of the heating reaction to keep the food in the inner liner warm, thus improving the ease of use of the heated can structure and the product experience.

[0017] 2. A limiting ring is provided at the bottom of the inner chamber of the outer shell to limit the safe distance between the inner liner and the heated reactants, and to prevent food from being accidentally burned.

[0018] 3. It is equipped with a steam distribution tank and steam flow channel to avoid the risk of explosion during the heating process.

[0019] 4. The top of the inner liner has a textured surface to increase friction, making it easy to adjust the heat radiation distance of the inner liner by turning it. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0023] Figure 3 This is an exploded view of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal chamber structure in this utility model. Detailed Implementation

[0025] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0026] like Figures 1 to 4 As shown, a self-heating canned food container includes an outer shell 1 and an inner liner 2. The outer shell 1 has an opening at the top and an inner chamber 10 inside. A limiting ring 12 is provided on the inner wall of the inner chamber 10 near its bottom surface, forming a reaction space 100 between the limiting ring 12 and the bottom surface of the inner chamber 10 for placing heating reaction materials. The inner wall of the outer shell 1 has an internal thread 13, which is located above the limiting ring 12. The inner liner 2 is movably fitted into the inner chamber 10, positioned above the limiting ring 12, forming a heat radiation distance between the inner liner 2 and the limiting ring 12. The lower middle part of the outer wall of the inner liner 2 has an external thread 22, which engages with the internal thread 13 to adjust the heat radiation distance, thereby adjusting the heating temperature received by the inner liner 2. The bottom of the inner liner 2 is blocked and limited by the limiting ring 12. When the inner liner 2 blocks the limiting ring 12, the heat radiation distance is at its minimum.

[0027] The inner liner 2 and the outer shell 1 are connected by threads to form an adjustable heat radiation distance, which allows for the adjustment of the heating degree of the inner liner 2, avoiding overheating and burning of food. It can also use the residual heat of the heating reactants to keep the food in the inner liner 2 warm, improving the ease of use of the heated can structure and the product experience.

[0028] The bottom of the inner chamber 10 of the outer shell 1 is provided with a limiting ring 12 to limit the safe distance between the inner liner 2 and the heated reactants, so as to avoid accidentally burning the food.

[0029] The heating reaction material used in this self-heating can is calcium oxide. Calcium oxide reacts with water to generate heat, which is used to heat the inner liner 2.

[0030] The operation of this self-heating canner is as follows: First, place the food into the cavity of the inner liner 2; then, place the calcium oxide packet into the reaction space 100 and add an appropriate amount of water; next, cover the inner liner 2 with the lid 3 and insert it into the inner cavity 10 of the outer shell 1, and twist the inner liner 2 until the bottom surface of the inner liner 2 is engaged with the limiting ring 12. At this time, the self-heating can is in its maximum heat treatment state; finally, after the food in the inner liner 2 is fully cooked, twist the inner liner 2 in the opposite direction as needed to achieve the corresponding heat preservation effect.

[0031] Specifically, the height a of the reaction space 100 is 4cm; the distribution height b of the internal thread part 13 is 2.5 times the height a; the inner liner 2 has a food cavity inside, the height h of the food cavity is 15cm, and the diameter of the inner liner 2 is 10cm.

[0032] Specifically, a steam flow channel is formed between the inner wall of the inner chamber 10 and the outer wall of the inner liner 2, and the width of the steam flow channel is 1 mm.

[0033] Specifically, the inner wall of the inner chamber 10 is provided with multiple steam distribution channels 14. The steam distribution channels 14 are vertically opened at the internal thread portion 13 and the limiting ring 12, and the steam distribution channels 14 are respectively connected to the steam flow channel and the reaction space 100. The provision of steam distribution channels 14 and steam flow channel avoids the risk of explosion during the heating process.

[0034] Specifically, there are four steam distribution tanks 14, which are arranged at equal intervals along the circumference.

[0035] Specifically, the top of the inner liner 2 always protrudes from the upper opening of the inner cavity 10, and the outer wall of the protruding part is formed with a textured surface structure 21 to increase the gripping friction when twisting the inner liner 2. The top of the inner liner 2 is provided with a textured surface structure 21 to increase friction, which facilitates the adjustment of the heat radiation distance of the inner liner 2 by twisting.

[0036] Specifically, the top of the inner liner 2 is covered with a lid 3, and the edge of the lid 3 is formed with a downwardly extending rim 31; wherein, the inner side of the bottom edge of the rim 31 is formed with a chamfer 32, and the chamfer 32 slides and guides the upper opening of the inner liner 2 to improve the ease of closing the lid 3.

[0037] Specifically, a handle 11 is provided on the upper middle part of the outer wall of the outer shell 1.

[0038] Specifically, the bottom of the outer casing 1 is formed with a downwardly protruding support ring, the height of which is 2mm.

[0039] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A self-heating canned food container, characterized in that: Including the outer shell and the inner liner, The outer shell is open at the top, and an inner chamber is provided inside the outer shell. A limiting ring is provided on the inner wall of the inner chamber near its bottom surface, forming a reaction space between the limiting ring and the bottom surface of the inner chamber for placing heated reaction materials. The inner wall of the outer shell has an internal thread, which is located above the limiting ring. The inner liner is movable and fitted into the inner cavity. The inner liner is located above the limiting ring, and a heat radiation distance is formed between the inner liner and the limiting ring. The lower middle part of the outer wall of the inner liner is provided with an external thread. The external thread and the internal thread are engaged to adjust the heat radiation distance and thus adjust the heating temperature received by the inner liner.

2. The self-heating canned food container according to claim 1, characterized in that: The bottom of the inner liner is engaged with the limiting ring for blocking and limiting. When the inner liner acts as a blocking force on the limiting ring, the heat radiation distance is at its minimum.

3. A self-heating canned food container according to claim 2, characterized in that: The height a of the reaction space is 3cm-8cm; the distribution height b of the internal thread is 1.5-2.5 times the height a; the inner liner has a food cavity with a height h of 15cm-30cm and a diameter of 10cm-15cm.

4. A self-heating canned food container according to claim 3, characterized in that: A steam flow channel is formed between the inner wall of the inner chamber and the outer wall of the inner liner, and the width of the steam flow channel is 0.5mm-2mm.

5. A self-heating canned food container according to claim 4, characterized in that: The inner wall of the inner chamber is provided with multiple steam distribution channels, which are vertically opened at the internal thread and the limiting ring. The steam distribution channels are respectively connected to the steam flow channel and the reaction space.

6. A self-heating canned food container according to claim 5, characterized in that: The number of steam distribution tanks is four, and these four steam distribution tanks are arranged at equal intervals along the circumference.

7. A self-heating canned food container according to claim 1, characterized in that: The top of the inner liner always protrudes from the upper opening of the inner cavity, and the outer wall of the protruding part is formed with a textured surface to increase the grip friction when twisting the inner liner.

8. A self-heating canned food container according to claim 1, characterized in that: The inner liner is top-sealed with a lid, the edge of which is formed with a downwardly extending rim; wherein, the inner side of the bottom edge of the rim is formed with a chamfer, which slides and guides the upper opening of the inner liner to improve the ease of closing the lid.

9. A self-heating canned food container according to claim 1, characterized in that: A handle is provided on the upper middle part of the outer wall of the shell.

10. A self-heating canned food container according to claim 1, characterized in that: The bottom of the outer shell is formed with a downward protruding support ring, the height of which is 1mm-3mm.

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