CN217185650U - Self-heating vacuum pressure cooker - Google Patents

Abstract

The utility model provides a self-heating vacuum pressure cooker, which is suitable for field cooking and comprises a cooker cover, a cooker body and an inner cooker, wherein the cooker cover is screwed on the edge teeth of the cooker body through a fastening position, so that the cooker cover and the cooker body are tightly combined together; the pot cover is of a hollow vacuum structure and has the function of vacuum heat insulation; the inner pot is arranged in the pot body containing cavity, the inner pot is a cylindrical or barrel-shaped container with one end open and the other end closed, and the diameter of the inner pot is matched with that of the pot body. When the self-heating vacuum pressure cooker of the utility model is used for making food, the operation is simple, the volume is reduced, and the portable outdoor trip is realized; wherein, the pot cover and the pot body both adopt the vacuum heat preservation technology to realize the functions of energy conservation, high efficiency, heat preservation and the like.

Description

Self-heating vacuum pressure cooker

Technical Field

The utility model belongs to the technical field of the heating of field food, concretely relates to self-heating vacuum pressure cooker.

Background

In the current life and production, the cooker is an essential tool for people to produce and live, and the shadow of the cooker can not be left for cooking rice and dishes.

With the progress of travel and the acceleration of the rhythm of life of people, the demand of consumers working outdoors on small portable cooking devices is increased day by day, and at present, no product suitable for outdoor use exists in the cooking appliances. In daily life, people often concentrate on going out for picnic and cooking. The existing field cooking utensils are simple and crude, and common cooking utensils such as a pot, a basin, an iron box and the like are generally used, then open fire is artificially ignited for cooking, boiling water is used, and food is cooked; or the food is inserted and wrapped by iron wires for roasting. These culinary art modes are very easily influenced by factors such as open-air weather, environment, if wind is big blow out the fire, can't cook food under the shelterless environment when rainy, and the cooking utensil is simple and crude in addition, and the food that cooks out is often half a life not ripe, not fully satisfactory. Making picnic difficult.

In addition, even if the existing common cooking utensils such as pots, basins and iron boxes are used in the field, the firewood or coal required by field heating is not easy to carry, so that the field cooking becomes a difficult task. Especially, under severe weather or extremely cold geographic environment, fuels such as dried firewood and the like required by cooking in daily life cannot be obtained. Further, in plateau areas where air is thin, the cooked food is often half-cooked due to the higher elevation and lower boiling point of water.

The problem of how to realize eating for field survival is a problem which cannot be solved by the research in the industry.

SUMMERY OF THE UTILITY MODEL

Based on the problems existing in the prior art, the utility model provides a self-heating vacuum pressure cooker.

According to the technical scheme of the utility model, a self-heating vacuum pressure cooker is provided, which is suitable for field cooking and comprises a cooker cover, a cooker body and an inner cooker, wherein the cooker cover is screwed on the edge teeth of the cooker body through a fastening position, so that the cooker cover and the cooker body are tightly combined together; the pot cover is of a hollow vacuum structure and has the function of vacuum heat insulation; the inner pot is arranged in the pot body containing cavity, the inner pot is a cylindrical or barrel-shaped container with one end open and the other end closed, and the diameter of the inner pot is matched with that of the pot body.

Wherein the pot body is a container for holding the heating bag, the pot body is a cylindrical or barrel-shaped container with one end open and the other end closed, and the open end of the pot body is provided with edge teeth; the heating bag is arranged inside the cylindrical or barrel-shaped container. The heating bag is placed in the pot body through the open end of the pot body, and when the heating bag generates heat when meeting water, the heat is transferred to the inner pot in the pot body.

Preferably, the pot body is of a hollow vacuum structure and has the function of vacuum heat insulation. The heating bag is arranged in the cavity between the bottom plate of the cooker body and the bottom plate of the inner cooker.

More preferably, the inner pot is provided with a plurality of holes on the surface of the cylindrical or barrel-shaped part, and heat generated by the water vapor can rapidly enter the food in the inner pot through the holes.

In addition, the bottom plate of the inner pot is made of metal material with good heat conductivity and is in a flat plate shape without holes.

More preferably, the bottom plate of the inner pot is provided with a plurality of circles of holes, which are convenient for the heat generated by the steam to rapidly enter the food in the inner pot from the holes of the bottom plate, and the distribution density of the holes on the bottom plate is less than that of the holes on the surface of the cylindrical or tube-shaped part of the inner pot.

More preferably, the total area of the holes on the surface of the cylindrical or barrel-shaped part of the inner pot accounts for 30-80% of the total area of the surface of the cylindrical or barrel-shaped part, and the total area of the holes on the bottom plate accounts for 10-40% of the total area of the bottom plate. Further, when the total area of the holes on the surface of the cylindrical or barrel-shaped part of the inner pot accounts for 50% of the total area of the surface of the cylindrical or barrel-shaped part, the total area of the holes on the bottom plate accounts for 15% of the total area of the bottom plate.

Compared with the prior art, the utility model discloses a self-heating vacuum pressure cooker's beneficial effect does:

1. when the self-heating vacuum pressure cooker is used for making food, the operation is simple, the volume is reduced, and the portable outdoor trip is realized.

2. The pot cover and the pot body adopt vacuum heat preservation technology, and the functions of energy conservation, high efficiency, heat preservation and the like are realized.

3. The self-heating vacuum pressure cooker realizes heating by using a self-heating bag, and the self-heating bag is placed at a proper position between the inner cooker and the outer cooker;

4. the outer pot of the self-heating vacuum pressure cooker adopts a vacuum structure for heat insulation and preservation, and the inner pot is a single-layer pot for realizing heat conduction;

5. the self-heating vacuum pressure cooker of the utility model can realize cooking and the like besides cooking.

Drawings

FIG. 1 is a schematic structural view of a self-heating vacuum pressure cooker according to the present invention;

FIG. 2 is a longitudinal cross-sectional view of the self-heating vacuum autoclave of FIG. 1;

FIG. 3 is a longitudinal sectional view of the lid upper used in FIG. 1;

FIG. 4 is a top plan view of the lid of the pot lid of FIG. 3;

FIG. 5 is a longitudinal cross-sectional view of the pressure limiting valve used in FIG. 1;

fig. 6 is a longitudinal sectional view of the lid handle used in fig. 1;

FIG. 7 is a top view of the lid handle of FIG. 6;

fig. 8 is a longitudinal sectional view of the safety valve used in fig. 1;

FIG. 9 is a longitudinal cross-sectional view of the float valve used in FIG. 1;

fig. 10 is a longitudinal sectional view of a lid handle used in fig. 1;

fig. 11 is a top view of the lid handle used in fig. 10;

fig. 12 is a longitudinal sectional view of a lid sealing ring used in fig. 1;

FIG. 13 is a longitudinal cross-sectional view of the pan body used in FIG. 1;

FIG. 14 is a longitudinal cross-sectional view of the pot body support used in FIG. 1;

FIG. 15 is a longitudinal cross-sectional view of a handle of the pot body used in FIG. 1;

fig. 16 is a schematic structural view of the inner pot used in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or assembly referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The utility model provides a self-heating vacuum pressure cooker, it is applicable to the field and cooks the use, and it includes pot cover, pot body and interior pot, and the pot cover closes soon on the limit tooth of pot body through detaining the position, makes the pot cover closely combine together with the pot body, and the pot cover is hollow vacuum structure, and the pot cover has the thermal-insulated effect of vacuum.

The pot body is a container for holding the heating bag, and is a cylindrical or barrel-shaped container with one end open and the other end closed, and the heating bag is placed in the cylindrical or barrel-shaped container; the pan body can also be a container in other container shapes; the heating bag is placed in the pot body through the open end of the pot body, and when the heating bag heats up when meeting water, the heat is transferred to the inner pot in the pot body; the heating bag is preferably placed in a cavity between the bottom plate of the pot body and the bottom plate of the inner pot; the preferred hollow vacuum structure of pot body, the pot body has the effect of vacuum thermal-insulated because of its vacuum structure. The open end of the pot body is provided with edge teeth.

The inner pot is a container for cooking food, the inner pot is arranged in the pot body containing cavity, the inner pot is a cylindrical or barrel-shaped container with one end open and the other end closed, and the diameter of the inner pot is matched with that of the pot body. A plurality of holes are formed in the surface of the cylindrical or cylindrical part of the inner pot, and heat generated by water vapor rapidly enters food in the inner pot through the holes. In a preferred embodiment, the bottom plate of the inner pan is made of a metal material with good heat conductivity, and is preferably in a flat plate shape without holes. In another embodiment, it is preferable that the bottom plate of the inner pot is provided with several circles of holes, which is convenient for the heat generated by the water vapor to rapidly enter the food in the inner pot from the holes of the bottom plate, and the distribution density of the holes on the bottom plate is smaller than that of the holes on the surface of the cylindrical or barrel-shaped part of the inner pot; for example, the total area of the holes on the surface of the cylindrical or barrel-shaped part of the inner pot accounts for 30-80% of the total area of the surface of the cylindrical or barrel-shaped part, and the total area of the holes on the bottom plate accounts for 10-40% of the total area of the bottom plate; further, when the total area of the holes on the surface of the cylindrical or barrel-shaped part of the inner pot accounts for 50% of the total area of the surface of the cylindrical or barrel-shaped part, the total area of the holes on the bottom plate accounts for 15% of the total area of the bottom plate. Additionally, when the total area of the holes on the surface of the cylindrical or barrel-shaped part of the inner pot accounts for 40% of the total area of the surface of the cylindrical or barrel-shaped part, the total area of the holes on the bottom plate accounts for 10% of the total area of the bottom plate.

The inner pot is placed in the pot body, the pot body is of a hollow vacuum structure, the pot cover upper cover is of a hollow vacuum structure, the pot body and the pot cover both adopt vacuum heat preservation technology, and the pot cover is locked with the pot body component in a screwing mode.

As shown in fig. 2 and 3, the pot cover comprises a pot cover upper cover 1, a pot cover handle 3, a pot cover handle 6 and a pot cover sealing ring 7. The pot cover handle 3 is arranged at a proper position above the pot cover upper cover 1 and is used for lifting the pot cover upper cover 1 from the upper part; the number of the pot cover handles 6 is preferably 2, the pot cover handles are respectively arranged on the two sides of the pot cover upper cover 1 in bilateral symmetry and are used for rotating the pot cover upper cover 1 and enabling the pot cover upper cover 1 to rotate clockwise or anticlockwise; the pot cover sealing ring 7 is embedded on the inner side of the lower buckling plate of the upper cover of the pot cover and used for sealing the pot body 8, and the O-shaped sealing ring is preferably selected as the pot cover sealing ring 7.

The pot cover upper cover 1 is of a hollow vacuum structure, the pot cover upper cover 1 comprises a pot cover upper buckle plate 101 and a pot cover upper cover lower buckle plate 102, and the pot cover upper buckle plate 101 and the pot cover upper cover lower buckle plate 102 are both round thin-wall tensile parts. The outer surface of the lower buckle plate 102 of the upper cover of the cooker cover is lathed with a positioning step, so that the upper buckle plate 101 of the upper cover of the cooker cover and the lower buckle plate 102 of the upper cover of the cooker cover are matched tightly, and the matching part of the upper buckle plate 101 of the upper cover of the cooker cover and the lower buckle plate 102 of the upper cover of the cooker cover is used for laser welding. A hollow vacuum structure formed by laser welding of a double-layer structure is formed between the pot cover upper buckle plate 101 and the pot cover upper cover lower buckle plate 102.

As shown in fig. 4 and fig. 3, fig. 4 is a top view of fig. 3, a vacuuming hole is formed on the inner surface of the lower buckle plate 102 of the upper cover of the pot cover, the hollow structure of the pot cover is vacuumized through the vacuuming hole, and after the vacuuming is finished, the vacuuming hole is sealed by using vacuum solder; the vacuum degree in the hollow pot cover is 0.0003 Pa. The vacuum heat insulation of the pot cover is realized through the vacuum heat insulation performance.

The cooker lid further comprises a pressure limiting valve 2, a safety valve 4 and a float valve 5. The pot cover upper cover 1 is provided with a plurality of through holes which penetrate through the pot cover upper cover and are respectively used for installing the air exhaust valve cores in the float valve 5, the safety valve 4 and the pressure limiting valve 2, and further the pot cover upper cover 1 is connected and locked with the float valve, the safety valve and the pressure limiting valve air exhaust valve core through threads. The left side and the right side of the pot cover upper cover 1 are respectively provided with four round mounting holes with the diameter of 4.5 mm, and the function of the pot cover upper cover is that M4 screws penetrate through the four holes at the pot cover upper cover 1 and are connected with M4 nuts in the pot cover handle 6, so that the pot cover handle 6 is fixed on the outer surface of the pot cover upper cover 1. In the preferred embodiment, the outer surface of the upper cover 1 of the pot cover is bent with a plurality of buckling positions, and the buckling positions are used for corresponding screwing and locking with buckling position teeth on the outer surface of the pot body; preferably 5 ~ 7 knot positions are detained, specifically are 6 knot positions.

Fig. 5 shows the utility model discloses the pressure limiting valve 2 that uses, pressure limiting valve 2 include plastic handle 21, screw assembly 22 and exhaust seat 23, and screw assembly 22 includes screw and plastic mould body, and the screw is inlayed in the plastic mould body, and the plastic mould body surrounds and combines together with the screw, closes as an organic whole through injection moulding messenger plastic mould body and plastic handle 21, and the plastic handle has the adiabaticity, does not scald operating personnel like this. The exhaust seat 23 is a machined part with a circular structure, and the plastic handle, the screw assembly and the exhaust seat are assembled together through threaded connection. When the water vapor in the pot body reaches the set threshold pressure, the pressure limiting valve can automatically exhaust, and the safety protection effect is achieved. The threshold pressure is set according to the environment used, and it is generally preferred that the threshold pressure is 80 Kpa. Furthermore, set up magnetism at the top of screw assembly 22 and inhale the knot, it with the utility model discloses a piece phase-match is inhaled to the pressurization magnetism of self-heating vacuum pressure cooker's accessory, and the piece is inhaled to the pressurization magnetism is used for changing the weight of pressure limiting valve self to be used for changing the inside pressure of the pot body.

Fig. 6 and 7 show the structure of the pot body handle, and the pot cover handle 3 is installed at a proper position above the pot cover 1 for lifting the pot cover 1 from the upper portion. The pot cover handle 3 is formed by plastic injection molding, two mounting holes are formed in the pot cover handle and are respectively provided with a pressure limiting valve exhaust valve core and a safety valve, and the shape design of the pot cover handle 3 is convenient for operators to lift the pot cover by hands after the pot cover is opened. The upper surface of the pot cover handle 3 is provided with a concave groove (as shown in figure 7), when the pressure limiting valve works normally, the pressure limiting valve handle is arranged at the lowest position of the concave groove of the pot cover handle 3, and when the pressure limiting valve needs to exhaust manually, the pressure limiting valve handle only needs to be moved to the highest position of the outer surface of the pot cover handle 3. Thereby realizing the humanized manual exhaust function of the pressure limiting valve.

The pot cover handle 3 formed by plastic injection molding adopts a multi-cavity structure, preferably 2 large cavities and a plurality of small cavities, the large cavities form the main body of the pot cover handle 3, and the small cavities are positioned in a manner of adapting to the appearance structure of the pot cover handle 3. The design of the multi-cavity structure enables the pot cover handle 3 to further reduce the weight of the pot cover handle 3, and further meets the requirements of light weight and portability in the field. In addition, a reinforcing rib is provided in the lid handle 3 of the multiple-cavity structure, and preferably, the reinforcing rib is provided along the joint edge of each chamber, so that the self strength of the lid handle 3 is further improved.

Two mounting holes are arranged in the middle of the pot cover handle 3, the safety valve penetrates through one mounting hole, the small end face of the exhaust valve core of the pressure limiting valve penetrates through the second mounting hole in the pot cover handle 3, the two mounting holes in the pot cover handle 3 are overlapped with the middle two holes in the pot cover 1, the safety valve and the large end face of the exhaust valve core of the pressure limiting valve are abutted against the outer surface of the pot cover handle 3, threads are arranged on the outer surfaces of the safety valve and the exhaust valve core of the pressure limiting valve, and the outer nut is screwed clockwise through the threads until the outer nut is locked.

Fig. 8 is a longitudinal sectional view of the safety valve used in fig. 1, and the safety valve 4 is assembled by a plurality of circular parts through threaded connection, and has the function of safety exhaust in the case that the pressure limiting valve and the float valve are both failed. The safety valve comprises an outer nut 41, a spring 42, a mandrel 43, a first safety valve sealing ring 44, a second safety valve sealing ring 45, an inner nut 46, a third safety valve sealing ring 47 and a safety valve nut 48, wherein the inner diameter of one end of the spring 42 is sleeved into the outer diameter of one end of the mandrel 43, the first safety valve sealing ring 44 is sleeved into a groove at the other end of the mandrel 43, the part of the mandrel 43 is sleeved into an inner hole of the outer nut 41, the mandrel 43 is locked by connecting the external thread of the inner nut 46 with the internal thread at the port of the outer nut 41, the third safety valve sealing ring 47 is sleeved into the groove of the inner nut 46, the second safety valve sealing ring 45 is placed into a groove on the outer surface of the outer nut 41, the outer nut 41 is inserted into holes of the pot lid 1 and the pot lid handle 3, and the internal thread of the safety valve nut 48 is connected and fixed with the external thread of the outer nut 41.

Fig. 9 is a longitudinal sectional view of the float valve used in fig. 1, the float valve 5 being assembled by a plurality of circular-shaped parts through a screw connection, functioning to safely vent air in case of failure of the pressure limiting valve. The float valve 5 comprises an upper float rod 50, a lower float rod 51, a fixing plate 52, a first float valve sealing ring 53, a float valve spring 54, a float valve pressure head 55, a second float valve sealing ring 56, a third float valve sealing ring 57, a float valve gasket 58 and a float valve nut 59, and the assembly mode is as follows: the second float valve sealing ring 56 is sleeved in a groove of the float valve pressure head 55, the inner diameter of one end of the float valve spring 54 is sleeved in the outer ring of the other end of the float valve pressure head 55, the whole of the float valve spring is sleeved in a hole of the lower floating rod 51, the outer thread of one end of the upper floating rod 50 is locked and fixed with the inner thread of the lower floating rod 51, the whole of the upper floating rod is inserted into a hole of the fixing plate 52, a hole of the float valve gasket 58 penetrates through the outer surface of a small-end shaft at the other end of the lower floating rod 51, and the float valve gasket 58 is fixed with the rest of the floating rod 51 through riveting. The third float valve sealing ring 57 is sleeved between the lower float rod 51 and the float valve gasket 58, the first float valve sealing ring 53 is sleeved in the groove of the fixed plate 52, and the float valve nut 59 is fixedly connected with the external thread of the fixed plate 52 through internal threads.

Figures 10 and 11 show front and top views of the lid handle used; the pot cover handle 6 is formed by plastic injection molding, and has the function that when the pot cover and the pot body part are screwed, the pot cover handle 6 plays a role of holding, so that the cover can be opened and closed more conveniently. The pot cover handle 6 upper surface has two trapezoidal slotted holes, and the M4 nut of two squares of trapezoidal slotted hole facial make-up is put into wherein, and the rubber pad of two trapezoidal shape size PVC materials is put to the upper surface of M4 nut and is stopped up M4 nut, prevents that M4 nut from falling out. The middle sliding groove of the pot cover handle 6 is filled with a plastic part of a sliding rail, the outer surface of the sliding rail is provided with a cylinder, the inner diameter of one end of a sliding rail spring is inserted into the outer surface of the cylinder on the surface of the pot cover handle 6, and the outer diameter of the other end of the sliding rail spring is sleeved into the inner diameter of the sliding rail cylinder. The whole body is arranged on the outer surface of the upper cover 1 of the pot cover, the fixing mode is that M4 screws penetrate through a side hole at the upper cover 1 of the pot cover to be connected with nuts in the handle 6 of the pot cover, and the upper cover 1 of the pot cover and the handle 6 of the pot cover are fixed.

Fig. 12 is a longitudinal sectional view of the pot cover sealing ring used in fig. 1, the pot cover sealing ring 7 is formed by plastic injection molding, and has the function of sealing the pot cover and the pot body, so that the pressure in the pot is increased, and the domestic state is in a high-pressure state in the process of heating food, so that the nutrients of the cooked food can be reserved. The pot cover sealing ring 7 is in a Y-shaped shape, and the mounting and positioning mode is that any end face of the pot cover sealing ring 7 is attached to the inner surface end face of the pot cover upper cover 1, when the temperature in the pot body rises, the internal pressure of the pot body increases, so that the lip edge of the pot cover sealing ring 7 expands outwards, the pot cover sealing ring is tightly attached to the inner surfaces of the pot cover upper cover 1 and the pot body, and the purpose of sealing the pot cover and the pot body is achieved.

Fig. 13 is a longitudinal sectional view of the pot body used in fig. 1, the pot body 8 is a double-layer structure vacuum structure, and specifically includes a pot body inner layer 81 and a pot body outer layer 82, the double-layer structure vacuum structure is formed by laser welding, and then a vacuumizing technology is adopted, so that the pot body achieves the effects of vacuum heat preservation and heat insulation. The pan body 8 is also a container of the heating bag. The inner layer 81 of the pot body is a thin-wall stretching piece with a circular structure, the thin-wall stretching piece is integrally formed by stretching through a hydraulic press, and the inner layer 81 of the pot body is provided with a step for fixing the end face of the inner pot. An R-angle structure is arranged on the inner surface of the inner layer 81 of the pot body during forming, and the R-angle structure is used for sealing the lip edge of the sealing ring 7 of the pot cover tightly. The outer layer 82 of the pot body consists of an outer liner body and an outer liner bottom, the outer liner body is a round thin-wall stretching piece, the outer liner bottom is a round stretching forming thin-wall piece, and a spigot step is arranged on the outermost surface of the outer liner bottom and has the function of conveniently positioning, welding and fixing the bottom of the outer liner body and the spigot of the outer liner bottom. A plurality of circular through holes are drilled in the middle of the bottom of the outer container, preferably 4 circular through holes with the diameter of 1 millimeter are reserved when the pot body is vacuumized and air is exhausted.

Fig. 14 is a longitudinal sectional view of the pot body support used in fig. 1, the pot body support 9 is composed of a pot body support fixing piece 91 and a round nut 92, the pot body support fixing piece 91 and the round nut 92 are tightly fitted and fixed together through a bolt, and the upper end of the round nut 92 is milled with two square anti-rotation structures for properly positioning the round nut 92; the square anti-rotation structure is preferably a kidney-shaped anti-rotation groove. The pot body support 9 and the pot body 8 are fixed together by laser welding. The pot body support fixing piece 91 is a rectangular thin-wall forming piece, five faces of the pot body support fixing piece are closed, only one face of the pot body support fixing piece is hollow, two rotation stopping waist-shaped holes are punched in the two sides of the pot body support fixing piece 91, and the waist-shaped holes are matched with the rotation stopping grooves in the end face of the round nut 92.

Fig. 15 is a longitudinal sectional view of the pot handle used in fig. 1, the pot handle 10 is formed by plastic injection molding, and the pot handle 10 and the pot support are fixed on the pot part by screws.

Fig. 16 is a schematic structural diagram of an inner pot of a further embodiment, wherein the inner pot is composed of an inner pot body 11 and an inner pot handle 12. The inner pot body 11 is a round thin-wall stretching piece, three rows of round holes are drilled on the upper side surface of the pot body, four fixing holes are drilled at the top of the pot body for increasing steam heat conduction, and the inner pot handle 12 is fixed through the four fixing holes. The inner pot handle 12 is composed of a circular thin-wall ring and a steel wire rope with the wall thickness of 1.5mm, and has the function of facilitating people to lift the inner pot body 11.

Based on the embodiments of the present invention, those skilled in the art can make various modifications in form and detail without departing from the technical principles of the present invention, and all belong to the protection scope of the present invention. In addition, the scope of the present invention should not be limited to the particular structures or components or the specific parameters described below.

Claims (10)

1. A self-heating vacuum pressure cooker is characterized in that the self-heating vacuum pressure cooker is suitable for being used for cooking in the field and comprises a cooker cover, a cooker body and an inner cooker, wherein the cooker cover is screwed on the edge teeth of the cooker body through a fastening position, so that the cooker cover and the cooker body are tightly combined together; the pot cover is of a hollow vacuum structure and has the function of vacuum heat insulation; the inner pot is arranged in the pot body containing cavity, the inner pot is a cylindrical or barrel-shaped container with one end open and the other end closed, and the diameter of the inner pot is matched with that of the pot body.

2. The self-heating vacuum pressure cooker as claimed in claim 1, wherein the body is a container for accommodating a heat generating pack, the body is a cylindrical or cylindrical container having an open end and a closed end, and the open end of the body is provided with edge teeth; the heating bag is arranged inside the cylindrical or barrel-shaped container.

3. The self-heating vacuum pressure cooker as claimed in claim 1, wherein the heat generating pack is placed in the cooker body through the open end of the cooker body, and the heat generating pack transfers heat to the inner cooker placed in the cooker body when it generates heat in contact with water.

4. A self-heating vacuum pressure cooker as claimed in claim 3, wherein the body is of a hollow vacuum structure.

5. The self-heating vacuum pressure cooker as claimed in claim 2, wherein the heat generating pack is disposed in the cavity between the body bottom plate and the inner pan bottom plate.

6. The self-heating vacuum pressure cooker as claimed in claim 3, wherein the inner pot has a plurality of holes formed on the surface of the cylindrical or cylindrical portion thereof.

7. The self-heating vacuum pressure cooker as claimed in claim 2, wherein the bottom plate of the inner pot is formed in a flat plate shape without the holes.

8. The self-heating vacuum pressure cooker as claimed in claim 6, wherein the inner cooker has a bottom plate with a plurality of holes, and the holes are distributed in the bottom plate at a density lower than that of the holes on the surface of the cylindrical or tubular portion of the inner cooker.

9. A self-heating vacuum pressure cooker as claimed in claim 8, wherein the total area of the holes in the surface of the cylindrical or barrel-shaped part of the inner cooker is 30-80% of the total area of the surface of the cylindrical or barrel-shaped part, and the total area of the holes in the bottom plate is 10-40% of the total area of the bottom plate.

10. A self-heating vacuum pressure cooker as claimed in claim 8, wherein the total area of the holes in the bottom plate is 15% of the total area of the bottom plate when the total area of the holes in the surface of the cylindrical or tubular part of the inner pot is 50% of the total area of the surface of the cylindrical or tubular part.

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