Rotary self-heating tank

Abstract

A rotary self-heating tank comprises an upper tank body, a lower tank body, an annular blade and a heating bag, the upper tank body is of a cylindrical structure, a big-end-up funnel barrel is arranged in the upper tank body, an annular liquid storage cavity used for storing a solution is formed between the outer wall of the funnel barrel and the inner wall of the upper tank body, and the lower portion of the annular liquid storage cavity is connected with a sealing film in a sealed mode; an internal thread positioned below the sealing film is arranged on the inner wall of the lower end of the upper tank; the lower tank comprises an arc-shaped spherical surface part, an inner ring part and an outer ring part, the inner ring part is fixedly connected with the upper surface of the arc-shaped spherical surface part, and the inner surface of the inner ring part and the upper surface of the arc-shaped spherical surface part form an inner containing cavity used for bearing a heating bag; the annular blade is arranged between the inner ring part and the inner wall of the upper tank, the outer wall of the annular blade is provided with an external thread in threaded fit with the internal thread, when the lower tank rotates relative to the upper tank, the annular blade rotates and ascends to scratch the sealing film, and a solution in the annular liquid storage cavity passes through the outer containing cavity and the liquid through hole to make contact with the heating bag of the inner containing cavity to generate heat.

Description

Technical Field

[0001] The utility model relates to the field of self-heating cans, and particularly relates to a rotating self-heating can. Background Art

[0002] At present, various beverage bottles or cans with self-heating functions have emerged on the market. These self-heating products can quickly heat beverages or foods. The "food can packaging with a built-in heater" disclosed in an early Chinese patent mainly relies on the heater connected to the can itself to heat the food, realizing the function of eating and drinking hot food. However, the heating of this product requires fire, which is neither convenient nor safe. Existing self-heating cans generally include an upper can and a lower can that can axially move relative to each other. By axially moving the upper can and the lower can relative to each other, the solution is punctured, so that the solution and the heating pack undergo a chemical reaction with each other to generate corresponding heat for cooking food. In the actual transportation process of this structure, it is often easy for the upper can and the lower can to move relative to each other due to pressure, thus puncturing the annular liquid storage cavity. Therefore, there are certain transportation safety problems. Summary of the Utility Model

[0003] In order to solve the above problems, the utility model provides a rotating self-heating can:

[0004] A rotating self-heating can includes an upper can, a lower can, an annular blade, and a heating pack.

[0005] The upper can has a cylindrical structure. A funnel-shaped cylinder with a larger upper part and a smaller lower part is provided inside the upper can. A storage cavity for carrying food is provided inside and above the funnel-shaped cylinder. The upper end of the funnel-shaped cylinder is fixedly and sealingly connected to the inner wall of the upper can. An annular liquid storage cavity for storing the solution is provided between the outer wall of the funnel-shaped cylinder and the inner wall of the upper can. A sealing film is hermetically connected to the lower part of the annular liquid storage cavity. An internal thread is provided on the inner wall of the lower end of the upper can below the sealing film. An annular flange protruding outward is provided on the outer wall of the lower end of the upper can.

[0006] The lower can includes an arc-shaped spherical surface part, an inner ring part, and an outer ring part. The inner ring part is fixedly connected to the upper surface of the arc-shaped spherical surface part. The inner surface of the inner ring part and the upper surface of the arc-shaped spherical surface part form an inner cavity for carrying the heating pack. An outer cavity is provided between the outer surface of the inner ring part and the upper surface of the arc-shaped spherical surface part. A plurality of liquid through holes distributed annularly and communicating the inner cavity and the outer cavity are provided at the lower end of the inner ring part. The outer ring part is fixedly connected to the upper end surface of the outer edge of the arc-shaped spherical surface part. An annular groove that forms a limiting fit with the annular flange is provided on the inner surface of the outer ring part.

[0007] The annular blade is disposed between the inner ring portion and the inner wall of the upper tank. The annular blade is located below the annular liquid storage cavity. A plurality of longitudinally distributed longitudinal slots are provided on the inner wall of the annular blade. The longitudinal slots and a plurality of longitudinally distributed raised positions provided on the outer surface of the inner ring portion form a clearance clamping fit. The outer wall of the annular blade is provided with an external thread that forms a thread fit with the internal thread. When the lower tank rotates relative to the upper tank, the annular blade rotates upward to cut through the sealing film, and the solution in the annular liquid storage cavity contacts the heating pack through the outer cavity, the liquid passage hole, and the inner cavity to generate heat.

[0008] Preferably, a plurality of circumferentially distributed heat dissipation fins are provided on the outer surface of the arc-shaped spherical surface portion, and the plurality of heat dissipation fins extend radially.

[0009] Preferably, the inner surface of the middle part of the funnel tube is an arc-shaped concave structure. The funnel tube is provided with an upper opening and a lower opening that communicate with each other. The lower opening communicates with the storage cavity and the inner cavity. A plurality of circumferentially distributed ventilation grooves are provided on the inner surface of the funnel tube. The ventilation grooves communicate the upper opening and the lower opening of the funnel tube, and the ventilation grooves are used for the output of steam.

[0010] Preferably, the upper end of the annular blade is provided with an annular sharp portion, and the annular sharp portion is adapted to the sealing film.

[0011] Preferably, the inner surface of the arc-shaped spherical surface portion is a spherical structure that is concave in the center. The concave spherical structure can facilitate the guiding inflow of the solution so as to facilitate the contact reaction between the solution and the heating pack.

[0012] Beneficial effects: In this application, the relative rotation of the lower tank and the upper tank can be directly controlled, and then the rotational upward movement of the annular blade can be controlled. The rotational upward movement of the annular blade cuts through the sealing film, causing the solution to flow out and contact the heating pack, thereby triggering a corresponding heating reaction, without changing the axial displacement of the lower tank and the upper tank. Under normal conditions, since the annular flange at the lower end of the upper tank is limited within the longitudinal slot, the relative axial displacement between the upper tank and the lower tank does not change, effectively avoiding the situation where the lower tank is axially displaced upward under pressure during transportation and piercing the annular liquid storage cavity, thus improving the safety of transportation. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the embodiment.

[0014] Figure 2 It is a top view structural diagram of the embodiment.

[0015] Figure 3 It is a sectional structural diagram of the embodiment.

[0016] Figure 4 It is Figure 3 The enlarged schematic diagram at A in

[0017] Figure 5 A top view schematic diagram of the embodiment.

[0018] Figure 6 is Figure 5 a schematic cross-sectional view taken along line B-B in

[0019] Reference numerals: 1, upper tank; 2, lower tank; 3, annular blade; 4, funnel tube; 5, storage cavity; 6, annular liquid storage cavity; 7, sealing film; 8, internal thread; 9, annular flange; 10, arc-shaped spherical surface part; 11, inner ring part; 12, outer ring part; 13, inner cavity; 14, outer cavity; 15, liquid passing hole; 16, annular groove; 17, longitudinal card slot; 18, external thread; 19, heat dissipation fin; 20, ventilation groove; 21, annular sharp part; 22, heating pack. Detailed implementation manners

[0020] The following further describes the present utility model in conjunction with the attached Figures 1-6 drawings and embodiments.

[0021] Embodiment 1: As Figure 3 shown, a rotary self-heating can includes an upper tank 1, a lower tank 2, an annular blade 3 and a heating pack 22. The upper tank 1 has a cylindrical structure. A funnel tube 4 with a larger upper part and a smaller lower part is provided inside the upper tank 1. A storage cavity 5 for carrying food is provided inside and above the funnel tube 4. The upper end of the funnel tube 4 is fixedly connected to the inner wall of the upper tank 1 in a sealed manner. An annular liquid storage cavity 6 for storing a solution is provided between the outer wall of the funnel tube 4 and the inner wall of the upper tank 1. A sealing film 7 is hermetically connected to the lower part of the annular liquid storage cavity 6. An internal thread 8 is provided on the inner wall of the lower end of the upper tank 1 below the sealing film 7. An annular flange 9 protruding outward is provided on the outer wall of the lower end of the upper tank 1. As Figures 3-5 shown, the inner surface of the middle part of the funnel tube 4 has an arc-shaped concave structure. The funnel tube 4 is provided with an upper opening and a lower opening that communicate with each other. The lower opening communicates with the storage cavity 5 and the inner cavity 13. A plurality of circumferentially distributed ventilation grooves 20 are provided on the inner surface of the funnel tube 4. The ventilation grooves 20 communicate with the upper opening and the lower opening of the funnel tube 4. The ventilation grooves 20 are used for the output of steam.

[0022] As Figures 3-4As shown in the figure, the lower tank 2 includes an arc-shaped spherical surface portion 10, an inner ring portion 11, and an outer ring portion 12. The inner ring portion 11 is fixedly connected to the upper surface of the arc-shaped spherical surface portion 10. The inner surface of the inner ring portion 11 and the upper surface of the arc-shaped spherical surface portion 10 form a content cavity 13 for carrying the heating pack 22. An outer content cavity 14 is provided between the outer surface of the inner ring portion 11 and the upper surface of the arc-shaped spherical surface portion 10. A plurality of liquid through holes 15 that are annularly distributed and communicate the content cavity 13 and the outer content cavity 14 are provided at the lower end of the inner ring portion 11. The outer ring portion 12 is fixedly connected to the upper end surface of the outer edge of the arc-shaped spherical surface portion 10. An annular groove 16 that forms a limit fit with the annular flange 9 is provided on the inner surface of the outer ring portion 12. As Figure 1 shown, a plurality of circumferentially distributed heat dissipation fins 19 are provided on the outer surface of the arc-shaped spherical surface portion 10, and the plurality of heat dissipation fins 19 extend radially.

[0023] As Figure 4 shown, the annular blade 3 is disposed between the inner ring portion 11 and the inner wall of the upper tank 1. The annular blade 3 is located below the annular liquid storage cavity 6. A plurality of circumferentially distributed longitudinal card slots 17 are provided on the inner wall of the annular blade 3. The longitudinal card slots 17 form a clearance card fit with a plurality of longitudinal carding protrusions provided on the outer surface of the inner ring portion 11. An external thread 18 that forms a thread fit with the internal thread 8 is provided on the outer wall of the annular blade 3. When the lower tank 2 rotates relative to the upper tank 1, the annular blade 3 rotates upward to cut the sealing film 7. The solution in the annular liquid storage cavity 6 contacts the heating pack 22 in the outer content cavity 14, through the liquid through holes 15, and the content cavity 13 to generate heat. A circular sharp portion 21 is provided at the upper end of the annular blade 3, and the circular sharp portion 21 is adapted to the sealing film 7.

[0024] As Figure 3 and 6 shown, the inner surface of the arc-shaped spherical surface portion 10 is a spherical structure that is concave in the center. The concave spherical structure can facilitate the guiding inflow of the solution so as to facilitate the contact reaction between the solution and the heating pack 22.

[0025] Operating principle: The user can directly place the food to be steamed in the upper tank 1. Since the funnel tube 4 has a structure that is larger at the top and smaller at the bottom, the food itself will not fall from the lower opening. To avoid accidents, a mesh isolation plate can also be provided at the lower opening of the funnel tube 4. The mesh isolation plate is provided with mesh holes for ventilation. The mesh isolation plate can prevent the food from falling and also avoid the poor circulation of the hot steam.

[0026] By directly rotating the upper tank 1 and the lower tank 2 relative to each other, at this time, the inner ring part 11 drives the annular blade 3 to rotate through the clamping position. The external thread 18 of the annular blade 3 rotates and rises relative to the internal thread 8 of the upper tank 1, thereby cutting the sealing film 7. At this time, the solution in the annular liquid storage cavity 6 directly flows out and flows into the external cavity 14 along the gap between the longitudinal clamping protrusion and the longitudinal card slot 17. The liquid in the external cavity 14 flows into the internal cavity 13 through the liquid through hole 15 and reacts with the heating pack 22 by heating. The chemical components of the solution and the heating pack 22 are relatively common in the prior art. For example, the heating reaction of pure water and calcium oxide can be adopted, etc. Therefore, it will not be elaborated too much.

[0027] Obviously, the above-mentioned embodiments of the present invention are only examples for explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. And these obvious changes or variations derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A rotary self-heating tank, characterized in that: It comprises an upper tank (1), a lower tank (2), an annular blade (3) and a heating pack (22). The upper tank (1) is of a columnar structure. A funnel tube (4) with a larger top and a smaller bottom is provided inside the upper tank (1). A storage cavity (5) for carrying food is provided inside and above the funnel tube (4). The upper end of the funnel tube (4) is sealed and fixedly connected to the inner wall of the upper tank (1). An annular liquid storage cavity (6) for storing a solution is provided between the outer wall of the funnel tube (4) and the inner wall of the upper tank (1). The lower part of the annular liquid storage cavity (6) is sealed and connected to a sealing film (7). The inner wall of the lower end of the upper tank (1) is provided with an internal thread (8) located below the sealing film (7). The outer wall of the lower end of the upper tank (1) is provided with an outwardly protruding annular flange (9). The lower tank (2) comprises an arcuate spherical portion (10), an inner ring portion (11) and an outer ring portion (12); the inner ring portion (11) is fixedly connected to the upper surface of the arcuate spherical portion (10); the inner surface of the inner ring portion (11) and the upper surface of the arcuate spherical portion (10) form an inner cavity (13) for carrying a heating pack (22); an outer cavity (14) is provided between the outer surface of the inner ring portion (11) and the upper surface of the arcuate spherical portion (10); a plurality of liquid-passing holes (15) are provided at the lower end of the inner ring portion (11) and are distributed in an annular manner and communicate with the inner cavity (13) and the outer cavity (14); the outer ring portion (12) is fixedly connected to the upper end surface of the outer edge of the arcuate spherical portion (10); and the inner surface of the outer ring portion (12) is provided with an annular groove (16) that forms a limiting fit with the annular flange (9); The annular blade (3) is arranged between the inner ring portion (11) and the inner wall of the upper tank (1). The annular blade (3) is located below the annular liquid storage chamber (6). The inner wall of the annular blade (3) is provided with a plurality of circumferentially distributed longitudinal grooves (17). The longitudinal grooves (17) and a plurality of longitudinal positioning protrusions provided on the outer surface of the inner ring portion (11) form a clearance positioning fit. The outer wall of the annular blade (3) is provided with an external thread (18) which forms a threaded fit with the internal thread (8). When the lower tank (2) rotates relative to the upper tank (1), the annular blade (3) rotates and rises to cut through the sealing film (7). The solution in the annular liquid storage chamber (6) contacts the heating pack (22) of the inner chamber (13) through the outer chamber (14), the liquid through hole (15) and generates heat.

2. A rotary self-heating tank according to claim 1, characterized in that: The outer surface of the arc-shaped spherical portion (10) is provided with a plurality of circumferentially distributed heat dissipation fins (19), and the plurality of heat dissipation fins (19) are radially extended and distributed.

3. A rotary self-heating tank according to claim 1, characterized in that: The inner surface of the middle part of the funnel tube (4) is an arc-shaped concave structure. The funnel tube (4) is provided with an upper opening and a lower opening which are connected to each other. The lower opening is connected to the storage cavity (5) and the inner cavity (13). The inner surface of the funnel tube (4) is provided with a plurality of circumferentially distributed ventilation grooves (20). The ventilation grooves (20) are connected to the upper opening and the lower opening of the funnel tube (4). The ventilation grooves (20) are used for outputting steam.

4. A rotary self-heating tank according to claim 1, characterized in that: The upper end of the annular blade (3) is provided with an annular sharp portion (21), and the annular sharp portion (21) is adapted to fit the sealing membrane (7).

5. The rotary self-heating tank according to claim 1, characterized in that: The inner surface of the arc-shaped spherical portion (10) is a spherical structure with a concave center.

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