Outdoor multifunctional self-heating pressure cooker

Abstract

According to the outdoor multifunctional self-heating pressure cooker, the functions of water boiling, braising, chafing dish and the like are achieved without fire or electricity, two sealed pressure containers, namely a self-heating bag bin and a food bin, can be opened and closed independently, and food or a self-heating bag can be replaced conveniently. The inner pot can be embedded into a traditional pressure cooker to achieve heating in a self-heating bag mode, the inner pot is safer and more sanitary when used for boiling water, and the inner pot is removed to serve as a common pressure cooker to be used in an open fire mode. According to the specific scheme, the electric cooker is composed of a cooker cover, an inner cooker body and an outer cooker body, wherein the cooker cover and the inner cooker body form a food bin; and the inner pot and the outer pot form a self-heating bag bin. A tooth opening is formed in the upper portion of the inner pot to be connected with the pot cover, a water outlet is formed in the neck portion below the tooth opening, two safety valves are arranged on the neck portion to achieve pressure release of the self-heating bag bin, a clamping groove structure identical to the pot cover is arranged below the neck portion to be connected with the outer pot, and the pot cover and the outer pot are designed to be light and foldable in handle on the basis of a traditional pressure cooker so that portability can be enhanced. The pot cover and the inner pot handle are buckled to independently open the self-heating bag bin, and the inner pot and the outer pot handle are buckled to independently open the food bin. Sealing rings are embedded in the pot cover and the inner pot clamping groove.

Description

Technical Field

[0001] The invention relates to the technical field of pressure cookers, in particular to an outdoor multifunctional self-heating pressure cooker. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] During outdoor sports or outdoor work, it is necessary to solve the problem of food and drink, and it is necessary to carry portable cookware. Although traditional outdoor cookware is portable, it is necessary to carry butane gas tanks, alcohol and other fuels and ignition devices. However, during the fire prevention period, outdoor fire is strictly prohibited, and ignition devices and fuels are prohibited from being brought up the mountain. Therefore, in recent years, a variety of pressure cookers with self-heating bags as heat sources have appeared.

[0004] Cookers that do not require fire or electricity currently mainly use the principle of self-heating packs. The main ingredients of the heating packs are quicklime, sodium bicarbonate, iron powder, aluminum powder, etc. When the heating pack is placed in water, the quicklime (calcium carbonate) in the heating pack will react chemically when it meets water, and the molten lime (calcium hydroxide) will generate a lot of heat. In addition, the aluminum powder, iron powder, sodium bicarbonate and other substances in the heating pack will react chemically and release a lot of heat for cooking food. The non-woven fabric on the outside of the used heating pack is degradable, and the calcium hydroxide in the content after the reaction can gradually absorb carbon dioxide to become calcium carbonate and water, which is harmless to the environment.

[0005] However, it is difficult for self-heating bags to reach and maintain a high temperature, and they can usually only be used to heat rice. Pressure cookers, on the other hand, can increase the pressure and temperature inside the pot to quickly cook food.

[0006] There are many kinds of cookers based on the principle of self-heating packs, including pressure cookers, on the market, such as: Publication No. CN209153104U A portable pressure cooker Publication No. CN209153104U, a portable pressure cooker consists of an outer pot, an inner pot, an upper cover, and a sealing buckle steel ring. After putting the self-heating bag in the outer pot, put the inner pot filled with food and cover the upper cover, buckle it firmly with the steel ring, open the air release valve, and then use a water injection bottle to inject 500ml of cold water, close the air release valve and start heating. After opening the air release valve to release air for about 30-60 minutes depending on the food, open the sealing steel ring and open the lid to eat.

[0007] The self-heating pressure cooker of publication number CN114259170A has a single function and can only be stewed with a self-heating bag. The sealing and fastening operation is relatively complicated. Therefore, water can only be added with a water filling bottle after the sealing is completed, otherwise it cannot keep up with the speed of the chemical reaction, and the special water filling bottle is easy to lose. The heating capacity of the self-heating bag is limited. During the heating process, if you need to take or put food, you must open all the seals, thereby wasting precious heat. If it is used to boil water, you must open the lid after exhausting, scoop water with tools or carefully take out the inner pot and pour it out, which is very inconvenient to use. When heating foods that are difficult to cook, such as stewed meat, if one heating bag is not enough, it needs to be fully opened and reinstalled, which is extremely cumbersome.

[0008] 2. Publication No.: CN114259170A An outdoor multifunctional pressure cooker and its use Publication number: CN114259170A, an outdoor multifunctional pressure cooker, adopts the traditional pressure cooker screw-on bayonet structure, can be opened and closed quickly, can open the food compartment and heating compartment independently, and has a water outlet installed on the pot cover so that it can be used as a kettle. When the inner pot is removed, the pot cover and the outer pot are screwed together so that it can be used as an ordinary pressure cooker under an open flame.

[0009] The self-heating cooker with publication number CN114259170A solves the problem of publication number CN114259170A to a certain extent. The lid and the inner pot, as well as the inner pot and the outer pot, all adopt the traditional screw-on method to open and close independently and quickly. Food can be replaced independently (without losing heat) or the self-heating bag (for continuous heating of difficult-to-cook food), water can be boiled and poured conveniently, and the inner pot can even be removed to use it as an ordinary pressure cooker over an open flame to achieve multi-scenario applications.

[0010] However, the design of publication number CN114259170A also has shortcomings: 1. There are two safety valves (exhaust valves) on the side of the outer pot, which are easy to burn when used under open flames; 2. When using open flames, the inner pot is not added, and the outer pot has two safety valves plus the safety valve and water outlet of the pot cover. Too many openings keep the pressure weak, and the complex structure makes it inconvenient to use under open flames; 3. When adding a water outlet on the pot cover, hot water will soak through the sealing ring when pouring water, which is poor in sanitation and will seep out of the sealing ring. 4. The overall structure is complex. The pot cover is equipped with a water outlet and a safety valve, and the outer pot is equipped with two safety valves. The inner pot cannot be shared with a traditional pressure cooker of the same caliber to realize the self-heating bag heating function. 5. The handle design is simple and inconvenient to use. It is not convenient to hold the pot cover and the inner pot together, or the inner pot and the outer pot together. Summary of the invention

[0011] The purpose of the present invention is to provide a multifunctional cooker that can be used outdoors during the forest fire prevention period, or in any scenario where fire and electricity cannot be used, to meet a variety of food heating methods for outdoor activities, such as boiling hot water, cooking, stewing food that takes a long time, heating food in a material-saving way, keeping food warm, heating food or liquid while walking, etc., and can easily maintain the heating state to replace food separately, or replace the self-heating bag separately, and support hot pot application. Compatible with traditional open fire cooking methods, one thing for multiple uses, easy to carry, the inner pot can be sold separately and embedded in the traditional same-caliber screw-on pressure cooker to achieve self-heating bag application.

[0012] In order to achieve the above object, the present invention is implemented through the following technical solutions: An outdoor multifunctional pressure cooker consists of a pot cover, an inner pot, and an outer pot. The pot cover and the inner pot form a food compartment; the inner pot and the outer pot form a self-heating bag compartment. The pot cover and the outer pot are designed with lightweight and foldable handles on the traditional pressure cooker to enhance portability. The pot cover is provided with two conventional safety valves, a gravity pressure limiting valve and a spring valve that can be opened manually. The pot cover is provided with a foldable handle. A groove is pressed on one side of the handle of the pot cover. The handle is folded and inserted to reduce the volume. A sealing ring is embedded in the pot cover. A foldable handle is installed on the outer pot.

[0013] The lid and the inner pot, as well as the inner pot and the outer pot, all adopt a threaded sealing method. The difference from the solution with publication number CN114259170A is that the safety valve of the outer pot and the water outlet of the lid are both installed on the inner pot. In this way, the outer pot and the lid are ordinary pressure cookers that can be used for open flames. The inner pot of the present invention can also be adapted to a traditional screw-on pressure cooker with the same caliber, and can be used to embed an inner pot of the present invention in a traditional pressure cooker to realize the self-heating bag heating function.

[0014] The design core of the present invention is embodied in the inner pot. The inner pot body is connected by a sealing connection part and a pot body part. The sealing connection part realizes a screw-on seal with the pot cover upwards and a screw-on seal with the outer pot downwards. The upper part is a tooth structure, which can be screwed on and sealed with the pot cover slot upwards. There is a higher neck below the upper tooth structure, and below the neck is a slot structure similar to the pot cover, which can be screwed on and sealed with the teeth of the outer pot.

[0015] At the junction of the upper part of the pot body and the sealed connection part, two grooves are pressed inward on the pot body as an air outlet channel. A vent hole is opened on the neck of the sealed connection part above the channel. Two spring safety valves are installed on the outside of the vent hole of the neck of the inner pot. When the pressure rises, the gas pushes the baffle of the safety valve to release the gas through the vent groove and the vent hole. One of the safety valves can be opened manually to realize the pressure release of the self-heating bag. The neck of the inner pot is also equipped with a water outlet. There are multiple implementation plans for the water outlet. This case lists two implementation plans. One is to use a ball valve as the water outlet and manual exhaust port, and the other is to use a buckle to push the soft plug water outlet. The surface of the slot structure of the neck of the inner pot and the bottom exposed to the outside is covered with an insulation layer. A folding handle is installed on the slot of the sealed connection part of the inner pot. It can be folded upward to save space, and folded downward to limit it to a horizontal position so as to hold the pot flat. The folding handle of the inner pot is narrower than the handle of the pot cover and can be interlocked with the handle of the pot cover for holding as a whole. It can also be interlocked with the handle of the outer pot for holding as a whole.

[0016] The pot cover is equipped with a conventional gravity pressure limiting valve and a spring valve. A folding handle is installed, which is wider than the inner pot handle and the outer pot handle, and can be interlocked with the inner pot or the outer pot handle to be held as a whole. It can be folded upward to save space, and folded downward to limit it to a horizontal position so that the pot cover can be held flat. The pot cover is covered with heat-insulating material.

[0017] The outer pot is equipped with two handles in the shape of two ears, which is convenient for holding with both hands. One handle can be interlocked with the inner pot handle or the lid handle to achieve a whole grip. The outer pot is covered with a removable insulation layer, which is fixed above the two outer pot handles with a buckle.

[0018] The beneficial effects of the present invention are as follows: 1) The present invention integrates the outer pot safety valve and the pot cover water outlet into the inner pot, so that the inner pot can be adapted to the traditional pressure cooker of the same caliber, realizes the self-heating bag application mode, improves the resource utilization rate of the stock equipment, and only needs to use the inner pot of the present invention with the original traditional pressure cooker, without changing the design of the traditional pressure cooker, and has a simpler structure. When the inner pot is removed, the pot cover and the outer pot are screwed together and used in exactly the same way as the traditional pressure cooker. There is no safety valve on the outer pot, so it will not be burned by excessive flames, and the pressure design is more reasonable.

[0019] 2) The safety valve of the second sealing structure of the present invention is arranged at the neck between the inner pot teeth and the downward clamping groove. Through the concave air passage opening, the external safety valve is used to avoid occupying the narrow gap between the inner pot and the outer pot. The exhaust direction is upward to the lower clamping groove of the pot cover, rather than directly exhausting to the outside to reduce the risk of burns.

[0020] 3) The water outlet is installed on the inner pot, which can be used as a kettle. Compared with the cooker with publication number CN114259170A, which pours water from the pot cover, water will not soak through the sealing ring, which can reduce the risk of hot water overflow and is more hygienic.

[0021] 4) Compared with traditional pressure cookers, the folding handles effectively reduce the volume and improve portability. The folding handles can be interlocked for easy holding. The inner pot and outer pot handles are interlocked and held as a whole, and the lid is opened to change food; or the inner pot and lid handles are interlocked and held as a whole, and the outer pot is opened to change the self-heating bag.

[0022] 5) When using the self-heating bag method for heating, it does not need to be fixed on the fire source like a traditional pressure cooker. It can be used while walking, saving time. The two safety valves are installed on the same side. When walking, the pot may shake. Just make sure that one side of the safety valve is facing upward to ensure normal exhaust and pressure reduction and prevent hot water from flowing out.

[0023] 6) If the pot lid is not used, and only the inner pot and the outer pot are screwed together and sealed, it can be used as a non-disposable self-heating hot pot container, avoiding the consumption of disposable self-heating hot pot containers, which is beneficial to environmental protection and saving resources, while the temperature is higher and longer-lasting.

[0024] Experiments show that when using a 100G self-heating pack, the temperature in the self-heating chamber exceeds 100 degrees Celsius for 30 minutes, the temperature in the food chamber exceeds 100 degrees Celsius for 20 minutes, and exceeds 80 degrees Celsius for 40 minutes. The temperature in the food chamber can reach a maximum of 112 degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a schematic diagram of the overall structure of an outdoor multifunctional self-heating pressure cooker.

[0026] Figure 2 This is the assembly diagram when using it in the form of a self-heating pack.

[0027] Figure 3 This is the appearance after all the handles are folded.

[0028] Figure 4 There are three water filling line diagrams marked inside the outer pot, which are the water level line for adding water first and then putting the self-heating bag in, the water level line for putting the self-heating bag in first and then adding water, and the highest water level line for food used with open flames.

[0029] Figure 5 It is a schematic diagram of the combined use of the outer pot and the inner pot, showing the two safety valves and the water outlet on the neck of the inner pot.

[0030] Figure 6 It is a cross-sectional view from a safety valve to the center line when the inner pot and the outer pot are screwed together for use separately, showing the concave ventilation groove, the ventilation hole on the neck of the inner pot and the pressure limiting structure of the spring safety valve.

[0031] Figure 7 It is a schematic diagram of the structure of the inner pot (implementation scheme for the water outlet with a pull-button soft plug method).

[0032] Figure 8 It is a schematic diagram of the local structure of a pull button connected to a silicone soft plug as a water outlet.

[0033] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0034] Including: 1. Pot cover, 2. Inner pot, 3. Outer pot, 4. Pressure limiting safety valve, 5. Exhaust valve, 6. Concave ventilation groove, 7. Manual exhaust safety valve, 8. Spring safety valve, 9. Pot cover folding handle, 10. Inner pot folding handle, 11. 12. Double-sided folding handles for outer pot, 13. Pot cover sealing ring, 14. Inner pot sealing ring, 15. Water outlet ball valve, 16. Pull-on water outlet, 17. Pull-on soft plug, 18. Pull-on connecting rod, 19. Outer pot insulation cover, 20. Self-heating bag. Implementation

[0035] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof; As introduced in the background technology, the opening and closing methods of the self-heating pressure cooker in the prior art are complicated, or the structure is complex, the inner pot cannot be used with the traditional pressure cooker, and the water outlet may leak through the sealing ring when pouring water on the pot cover and is unhygienic. The present invention makes the following design.

[0037] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 6 As shown, an outdoor multifunctional self-heating pressure cooker comprises a pot cover 1, an inner pot 2 and an outer pot 3. The outer pot 3 accommodates the inner pot 2, and the top of the inner pot 2 protrudes from the outer pot 3. The pot cover 1 and the inner pot 2 are respectively provided with a first sealing structure, and the inner pot 2 and the outer pot 3 are respectively provided with a second sealing structure. The first sealing structure cooperates with the second sealing structure to realize the connection and sealing between the pot cover and the inner pot, and between the inner pot and the outer pot, respectively. A self-heating bag 20 as a heat source is provided in the outer pot 3.

[0038] The connection sealing method of this embodiment is a screw-on seal, and the thread specifications of the two sealing structures are the same. When the inner pot 2 is not in use, the pot cover 1 can be directly screwed on the outer pot 3.

[0039] Specifically, the inner pot 2 includes an inner pot body, and a threaded groove is arranged on the circumference of the top of the inner pot body, which is used to screw together with the pot cover 1 to set a first sealing structure. There is a raised neck circle below the threaded groove, and a ball valve water outlet is installed on one side of the neck. A slot structure is arranged below the neck, and the slot protrudes from the pot body and then turns downward and inward. An inner pot sealing ring 14 is placed in the slot, which is used to screw together with the outer pot 3 to set a second sealing structure. Two safety valves are installed on the neck between the slot and the upper threaded groove for pressure release of the second sealing structure, and one of them has a switch handle that can be opened manually.

[0040] The folding handle 9 on the pot cover 1 can be folded upward onto the pot cover 1 to reduce space occupation, and can be folded downward to a horizontal position to limit the pot cover 1. The pot cover 1 can be held horizontally. The folding handle 9 is wider than the folding handle 10 of the inner pot 2, so it can be buckled with the folding handle 10 of the inner pot 2 downward, connected together, and convenient for overall grasping. At this time, the folding handle of the outer pot 3 can be rotated to open the second sealing structure (self-heating bag compartment). The folding handle of the inner pot 2 can be buckled with a folding handle of the outer pot 3 downward, and connected together, which is convenient for overall grasping. At this time, the first sealing structure (food compartment) is opened by screwing the handle of the pot cover 1. The handles of the pot cover 1, the inner pot 2, and the outer pot 3 can be buckled together for easy grasping.

[0041] exist Figure 6-Figure 7 In the example, the inner pot can also use a water outlet in the form of a pull-button soft plug. The water outlet is installed on the neck of the inner pot 2, and a soft plug 17 is provided on the inner side of the water outlet. The soft plug 17 is connected to the pull-button on the water outlet through a connecting rod 18. When the pull-button is pulled down or buckled up, the soft plug is driven to maintain the seal or open the seal. This is the second implementation method of the water outlet.

[0042] The above are only several preferred embodiments of the present invention. The specific technical details described are only exemplary and are only used to explain the present invention, and are not used to limit the scope of the present invention. For those skilled in the art, various changes and variations are possible. Any equivalent implementation or change, equivalent substitution and improvement that does not deviate from the essence of the present invention should be included in the patent protection scope of the present invention.

Claims

1. An outdoor multifunctional self-heating pressure cooker, characterized in that: It includes an outer pot, an inner pot and a pot cover. The outer pot contains the inner pot. The top of the inner pot protrudes from the outer pot. The pot cover and the inner pot are respectively provided with a first sealing structure. The inner pot and the outer pot are respectively provided with a second sealing structure. The first sealing structure cooperates with the second sealing structure to realize the respective screw-on sealing of the pot cover and the inner pot, and the inner pot and the outer pot. The pot cover and the outer pot can realize the separate screw-on sealing. The space between the outer pot and the inner pot is used to place the self-heating bag and water for chemical reaction. The inner pot can be nested in an ordinary screw-on pressure cooker of the same caliber to realize the self-heating bag mode of use. The neck of the inner pot is equipped with a water outlet and two safety valves for the pressure release of the second sealing structure.

2. An outdoor multifunctional self-heating pressure cooker inner pot, characterized in that: The inner pot body is connected by an upper sealed connecting part and a lower pot body part. Two vent holes are opened in the neck below the upper end of the inner pot. Two vent grooves are pressed at the junction of the upper sealing part of the inner pot and the inner pot body part to reach the vent holes. Safety valves are installed on the outside of the neck at the vent holes for safely releasing pressure. A water outlet is installed on the other side of the neck for pouring hot water.

3. An outdoor multifunctional self-heating pressure cooker according to claim 1, characterized in that: The folding handles of the pot cover and the inner pot can be buckled and screwed together as a whole, and the folding handle of the inner pot can also be buckled and screwed together with the folding handle of the outer pot as a whole. The folding handles of the pot cover, the inner pot and the outer pot can be buckled together for overall grasping, and all the folding handles can be folded back onto the pot body to reduce space occupation.

4. The outdoor multifunctional self-heating pressure cooker according to claim 1, characterized in that: The pot cover is covered with heat-insulating material, and the part of the inner pot exposed to the outside is also covered with heat-insulating material.

5. The outdoor multifunctional self-heating pressure cooker according to claim 1, characterized in that: There is a removable insulation cover on the outside of the outer pot, which is fixed with Velcro above the two handles.

6. The inner pot of an outdoor multifunctional self-heating pressure cooker according to claim 2, characterized in that: The neck water outlet uses a ball valve, or a buckle-connected soft plug as the water outlet.

7. The outdoor multifunctional self-heating pressure cooker according to claim 1, characterized in that: There are three water level lines marked in the outer pot: 1 is the highest line for food when used with an open flame, 2 is the water level line for adding water first and then putting the self-heating bag, and 3 is the water level line for putting the self-heating bag first and then adding water.

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