Double-chamber double-pressure electric pressure cooker

Abstract

The utility model discloses a double chamber double pressure electric pressure cooker relates to kitchen utensil technical field, including: lower pot body, middle pot body and upper cover body, the lower pot body is equipped with the lower inner pot and is used for heating the heating body of lower inner pot, the middle pot body is equipped with the middle inner pot, and the upper cover body is equipped with the upper cover body. The middle inner pot cover is arranged above the lower inner pot and seals the lower inner pot to form a first heating cavity, the upper cover body is arranged above the middle inner pot in a covering mode and seals the middle inner pot to form a second heating cavity, and the first heating cavity and the second heating cavity are mutually independent. The middle pot body is provided with a first air leakage assembly used for communicating or blocking the atmosphere and the first heating cavity, and the upper cover body is provided with a second air leakage assembly used for communicating or blocking the atmosphere and the second heating cavity. The device is time-saving and energy-saving, and can be used for cooking two kinds of food with different pressures at the same time without being tainted by other odors between the food.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a dual-chamber dual-pressure electric pressure cooker. Background Technology

[0002] With consumers' increasing demand for cooking efficiency, pressure cookers capable of cooking multiple ingredients simultaneously have gained widespread popularity and their market share continues to rise. These pressure cookers are mostly of a detachable double-pot structure. For example, Chinese patent CN205125923U discloses a swivel-type multi-purpose energy-saving pressure cooker, which includes an outer pressure pot body and an inner stewing pot body located within the outer pressure pot body. Heating the outer pressure pot body achieves the purpose of heating the inner stewing pot body, enabling the simultaneous cooking of multiple ingredients. However, because the gas in the two pots of this pressure cooker is interconnected, it is still easy for food flavors to mix. Furthermore, because the gas is interconnected, the pressure in the two pots is almost the same, making it impossible to achieve pressure differences between the two chambers. This limits its application scenarios and makes it difficult to meet all cooking needs. Summary of the Invention

[0003] In order to overcome the shortcomings of the relatively limited application scenarios of pressure cookers in the prior art, this invention provides a dual-chamber, dual-pressure electric pressure cooker, which has the advantages of preventing flavor mixing, saving time and energy, and being able to cook two different pressure dishes at the same time.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dual-chamber, dual-pressure electric pressure cooker includes a lower pot body, a middle pot body, and an upper cover body. The lower pot body contains a lower inner pot and a heating element for heating the lower inner pot. The middle pot body is fitted with a middle inner pot. The middle inner pot cover is located above the lower inner pot and seals the lower inner pot to form a first heating chamber. The upper cover body is located above the middle inner pot and seals the middle inner pot to form a second heating chamber. The first heating chamber and the second heating chamber are independent of each other. The middle pot body is provided with a first venting component for connecting or blocking the atmosphere from the first heating chamber, and the upper cover body is provided with a second venting component for connecting or blocking the atmosphere from the second heating chamber.

[0006] The aforementioned electric pressure cooker has two sealed heating chambers, each equipped with a venting assembly. This structure allows the first and second heating chambers to operate independently. The first and second venting assemblies allow for independent venting to the atmosphere, preventing gas exchange and ensuring food flavors do not mix. The lower inner pot is covered by a middle inner pot, which can be opened from the lower pot to place or remove food. The upper lid is positioned above the middle inner pot and can be opened from the middle pot to place or remove food. The lower pot of this electric pressure cooker has a conventional pressure cooker structure. The lower inner pot maintains the original cooking space of the pressure cooker, that is, it has a cooking space that can achieve high pressure. When cooking food, the first heating chamber is heated by the heating element and its interior is a high-pressure environment. The second heating chamber is heated by the heat transfer from the first heating chamber and its temperature is relatively lower than that of the first heating chamber. Its interior is a micro-pressure environment. The upper lid, the middle inner pot and the lower inner pot form two heating chambers with different pressures, which can cook two different pressure dishes at the same time.

[0007] Preferably, the middle pot body and the lower pot body are detachably connected by a locking ring assembly, and the upper cover body is detachably connected to the middle pot body.

[0008] In the above technical solution, the upper cover and the middle pot are detachably connected, and the middle pot and the lower pot are detachably connected, which improves the flexibility of food retrieval. Consumers can open the middle pot and the lower pot separately to take out food as needed. For example, when cooking meat and vegetables, the cooked vegetables can be taken out first, and the meat can continue to simmer in the pot without worrying about overcooking the food. At the same time, the connection between the components is stable, the connection component structure is simple, and it is easy to process.

[0009] Preferably, the middle pot body is placed above the lower pot body, and the upper cover body is detachably connected to the lower pot body through a locking assembly, which clamps the middle pot body onto the lower pot body.

[0010] In the above technical solution, the lid, middle pot and lower pot are connected by a set of locking components, which is easy to operate, simplifies the connection process, and enables quick locking and unlocking.

[0011] Preferably, the inner pot is made of a heat-conducting material, the bottom upper surface of the inner pot directly forms the bottom surface of the second heating cavity, and the bottom lower surface of the inner pot directly forms the top surface of the first heating cavity.

[0012] In the above technical solution, the heat-conducting material is a material that has thermal conductivity and is not easily deformed, such as metal, ceramic, or thermally conductive plastic. The first heating chamber and the second heating chamber are separated only by the bottom of the inner pot, resulting in high heating efficiency.

[0013] Preferably, the middle pot body is provided with a clearance space and an isolation member for isolating the clearance space from the second heating chamber. The first venting component protrudes into the clearance space and can discharge the hot air in the first heating chamber to the clearance space. The clearance space is connected to the atmosphere through structural gaps or connecting holes.

[0014] In the above technical solution, the hot air generated during heating in the first heating chamber is discharged into the clearance space through the first venting component. The hot air exchanges heat with the cold air or cold surfaces in the clearance space, cools down, and then enters the atmosphere, avoiding direct exhaust that could cause burns. The isolation component and the inner pot are integrally formed.

[0015] Preferably, the isolation element is made of a thermally conductive material, and the vent of the first venting component faces the gap or connecting hole of the clearance space.

[0016] In the above technical solution, the thermally conductive material is a material that has thermal conductivity and is not easily deformed, such as metal, ceramic, or thermally conductive plastic. The vent of the first venting component faces the gap or connecting hole of the clearance space to facilitate venting.

[0017] Preferably, the inner pot is detachably connected to the outer pot body.

[0018] In the above technical solution, the middle pot body can be removed for separate cleaning. After the middle pot body is removed, the first venting component can be exposed. After manual depressurization, the clearance space can be cleaned. On the one hand, this ensures the safety and hygiene of food, and on the other hand, the cleaned venting hole can ensure that hot air is discharged smoothly, thereby improving the heating efficiency of the first heating chamber to the second heating chamber.

[0019] Preferably, a detachable inner cover is connected to the lower part of the middle pot body. The edge of the detachable inner cover is provided with a first sealing ring. The middle inner pot and the lower inner pot clamp the first sealing ring to form a sealing structure. The detachable inner cover is provided with a vent hole that connects the upper and lower spaces of the detachable inner cover.

[0020] In the above technical solution, a removable inner cover is provided to prevent food residue from splashing out and contaminating the clearance space and the first venting component; hot air flows out from the vent hole at the bottom of the removable inner cover, part of which is discharged by the first venting component, and the other part is directly used to heat the second heating chamber; a first sealing ring is provided on the edge of the removable inner cover to further increase the airtightness of the first heating chamber, reduce heat loss, and improve cooking efficiency.

[0021] Preferably, a second sealing ring is provided between the upper cover and the inner pot, and when the upper cover is placed on top of the inner pot, the upper cover and the inner pot clamp the second sealing ring.

[0022] In the above technical solution, a second sealing ring is provided to increase the airtightness of the second heating chamber, reduce heat loss, and improve cooking efficiency.

[0023] Preferably, the outer wall of the middle pot body is provided with two handles arranged opposite each other, and the upper end of the upper cover body is provided with a handle.

[0024] The above technical solution allows for a more stable grip on the pot body during transport, reducing the risk of slippage.

[0025] The beneficial effects of the present invention are: (1) Time-saving and energy-saving, and can cook two different pressure dishes at the same time: the upper cover, the middle inner pot and the lower inner pot form the first heating chamber and the second heating chamber. The lower inner pot has a cooking space that can achieve high pressure. The cooking space of the middle inner pot is smaller than that of the lower inner pot. During operation, the first heating chamber is heated by the heating body and the interior is a high-pressure environment. The second heating chamber is heated by the heat transfer of the first heating chamber. The temperature is lower than that of the first heating chamber and the interior is a micro-pressure environment, so as to realize the simultaneous cooking of two different pressure dishes; (2) Food does not mix flavors: the first heating chamber and the second heating chamber are both sealed structures and are respectively equipped with venting components. The two chambers are independent of each other and the gas does not communicate with each other, so as to realize that the food does not mix flavors; (3) High safety: the middle pot body is provided with a clearance space. The hot air generated when the first heating chamber is heated is discharged into the clearance space through the first venting component. The hot air will exchange heat with the cold air or cold surface in the clearance space, cool down and then enter the atmosphere, avoiding direct discharge and burns. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the present invention;

[0028] Figure 3 This is a schematic diagram of an explosive structure of this utility model. Figure 1 ;

[0029] Figure 4 This is a schematic diagram of an explosive structure of this utility model. Figure 2 .

[0030] Figure label:

[0031] 1-Upper lid; 2-Middle pot; 3-Lower pot; 13-Second venting assembly; 14-Handle; 20-Second heating chamber; 21-Middle inner pot; 22-Isolator; 23-First venting assembly; 24-Avoidance space; 25-Removable inner lid; 26-Handle; 30-First heating chamber; 31-Lower inner pot; 32-Heating element. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Unless otherwise specified, the devices, connection structures, and methods involved in this utility model are all devices, connection structures, and methods known in the art.

[0033] Example 1

[0034] Reference Figures 1 to 4 As shown, this utility model provides a dual-chamber, dual-pressure electric pressure cooker, comprising a lower pot body 3, a middle pot body 2, and an upper lid body 1 arranged from bottom to top. The lower pot body 3 contains a lower inner pot 31 and a heating element 32 located below the lower inner pot 31. The middle pot body 2 contains a middle inner pot 21, which covers the lower inner pot 1, forming a sealed first heating chamber 30. The middle pot body 2 also contains a first venting component 23 for connecting or blocking the atmosphere from the first heating chamber 30. Two opposing handles 26 are provided on the outer wall of the middle pot body 2. The upper lid body 1 covers the middle inner pot 21, forming a sealed second heating chamber 20. The upper lid body 1 contains a second venting component 13 for connecting or blocking the atmosphere from the second heating chamber 20. A lifting handle 14 is provided at the top of the upper lid body 1. The lower inner pot 31 has a cooking space capable of achieving high pressure, while the cooking space of the middle inner pot 21 is smaller than that of the lower inner pot 31. The first heating chamber 30 and the second heating chamber 20 are independent of each other, meaning that the first venting assembly and the second venting assembly can independently vent gas to the atmosphere, and the gas between them is not interconnected. In the lower pot body 3, the heating element 32 is connected to a temperature control device, which consists of a temperature sensor and a controller. The temperature sensor can monitor the temperature of the lower pot body in real time, and the controller controls the on / off state and power adjustment of the heating element 32 based on the feedback signal from the temperature sensor. The outer wall of the lower pot body 3 is equipped with a display screen and indicator lights to display the working status and cooking progress of the rice cooker.

[0035] This device uses two independent and sealed heating chambers, each with its own set of venting components, to prevent gas from mixing with each other, thus preventing food from tasting different flavors and providing an independent pressure environment. By setting up an inner pot 21 and a lower inner pot 31 with different capacities, the second heating chamber 20 is heated by heat transfer from the first heating chamber 30, creating a high-pressure environment in the first heating chamber 30 and a low-pressure environment in the second heating chamber 20, enabling the simultaneous cooking of multiple dishes under different pressures. The addition of handles 26 and lifting handles 14 allows for a more stable grip when moving the inner pot, reducing the risk of slipping.

[0036] In this embodiment, food that has been processed under high pressure is placed in the lower inner pot 31, and food that has been processed under low pressure is placed in the middle inner pot 21. The middle inner pot 21 is placed on top of the lower inner pot 31, and the upper cover 1 is placed on top of the middle inner pot 21. The three are combined, and the first heating chamber 30 and the second heating chamber 20 are in a sealed state. The heating element 32 heats the food in the first heating chamber 30, creating a high-pressure environment in the first heating chamber. Part of the hot air in the first heating chamber 30 heats the second heating chamber 20 through the bottom of the middle inner pot 21, and the other part is discharged by the first venting component 23. The hot air in the second heating chamber 20 is discharged by the second venting component 13. After cooking is completed, the pressure is released, and the food is taken out.

[0037] Example 2

[0038] Based on Example 1, such as Figures 1 to 3 As shown, this utility model provides a dual-chamber, dual-pressure electric pressure cooker. The lower pot body 3 and the middle pot body 2 are connected by a locking ring assembly. The locking ring body of the locking ring assembly is located at the bottom of the middle pot body 2 and is integrally formed with the inner pot 21. Inside the middle pot body 2, a clearance space 24 is provided on the side of the locking ring body facing the inner pot 21. The clearance space 24 is isolated from the second heating chamber 20 by an isolator 22. The isolator 22 is integrally formed with the inner pot 21. The middle pot body 2 is provided with a connecting hole that connects to the atmosphere and the clearance space 24. The venting end of the first venting assembly 23 protrudes into the clearance space 24, and its vent faces the gap or connecting hole of the clearance space 24. The other end is connected to the first heating chamber 30, which can discharge the hot air in the first heating chamber 30 into the clearance space 24. The upper cover 1 and the middle pot 2 are detachably connected by a locking ring structure or a snap fastener. Understandably, the upper cover 1 can also be clamped onto the middle pot 2 by its own weight. A second sealing ring is provided between the upper cover 1 and the inner pot 21, and the upper cover 1 and the inner pot 21 clamp the second sealing ring to form a sealing structure. In this embodiment, the inner pot 21, the lower inner pot 31, and the separator 22 are made of metal.

[0039] In this embodiment, the locking ring body and the isolation piece 22 are integrally formed with the inner pot 21, saving space and increasing cooking capacity. By setting an avoidance space 24, the hot air discharged from the first heating chamber 30 first exchanges heat with the cold air or cold surface in the avoidance space 24, and then enters the atmosphere after cooling down, avoiding direct exhaust and scalding, thus improving the safety of the device. The heat from the first heating chamber 30 is used to heat the second heating chamber 20, and the heat is conducted through the bottom of the inner pot 21, improving the heat utilization rate. The inner pot 21 and the middle pot body 2 are detachably connected, which facilitates the cleaning of the avoidance space 24, ensuring food safety and hygiene while improving the heating efficiency of the first heating chamber 30 to the second heating chamber 20. A second sealing ring is set to further increase the airtightness of the second heating chamber 20, reduce heat loss, and improve cooking efficiency.

[0040] Specifically, a removable inner cover 25 is detachably connected to the side of the locking ring body facing the lower inner pot 31. The edge of the removable inner cover 25 is provided with a first sealing ring. The size of the removable inner cover 25 is adapted to the lower inner pot 31. The middle inner pot 21 and the lower inner pot 31 clamp the first sealing ring to form a sealing structure. The removable inner cover 25 is concave and has a vent hole at the bottom, dividing the first heating chamber 30 into an upper heating chamber located above the bottom of the removable inner cover 25 and a lower heating chamber located below its bottom. The vent end of the first venting component 23 protrudes into the clearance space 24, and its vent outlet faces the gap or connecting hole of the clearance space 24. The other end communicates with the internal space of the removable inner cover 25, which can discharge the hot air in the first heating chamber 30 into the clearance space 24. A removable inner lid 25 is provided to prevent food residue from splashing out and contaminating the clearance space 24 and the first venting assembly 23. Hot air from the lower heating chamber flows out through the vent at the bottom of the removable inner lid 25 into the upper heating chamber; part of it is discharged by the first venting assembly 23, and the other part directly heats the second heating chamber 20. A first sealing ring is provided at the edge of the removable inner lid 25 to further increase the airtightness of the first heating chamber 30, reduce heat loss, and improve cooking efficiency. The upper bottom surface of the inner pot 21 directly forms the bottom surface of the second heating chamber 20, and the lower bottom surface of the inner pot 21 directly forms the top surface of the first heating chamber 30. The first and second heating chambers are separated only by the bottom of the inner pot, resulting in high heating efficiency.

[0041] The device is implemented as follows: food that has been processed under high pressure is placed in the lower inner pot 31, and food that has been processed under low pressure is placed in the middle inner pot 21. The middle inner pot 21 is placed on the lower inner pot 31 and locked to the lower inner pot 31. The upper cover is locked to the middle inner pot 21. The first heating chamber 30 and the second heating chamber 20 are in a sealed state. The heating element 32 heats the food in the first heating chamber 30, and a high-pressure environment is formed in the first heating chamber. Part of the hot air in the first heating chamber 30 heats the second heating chamber 20 through the bottom of the middle inner pot 21, and the other part is discharged by the first venting component 23. The hot air in the second heating chamber 20 is discharged by the second venting component 13. After cooking is completed, the pressure is released and the food is taken out.

[0042] Preferably, the first venting assembly 23 is equipped with a lever, one end of which is connected to a pressure relief valve, and the other end extends out of the outer surface of the middle pot body 2. When cooking is completed and it is necessary to quickly release pressure or clean the electric pressure cooker, the lever can be moved to manually release pressure, allowing the middle pot body 2 to separate from the lower pot body 3. This structure facilitates cleaning of the first venting assembly 23 and the clearance space 24, ensuring food safety and hygiene. Furthermore, the clean vent holes ensure smooth heat dissipation, improving the heating efficiency of the first heating chamber for the second heating chamber.

[0043] Example 3

[0044] Based on Example 1, such as Figures 1 to 3As shown, this utility model provides a dual-chamber, dual-pressure electric pressure cooker. An inner pot 21 is installed inside the middle pot body 2, and the middle pot body 2 and the inner pot 21 are an integral structure. The upper cover body 1 and the lower pot body 3 are detachably connected by a locking ring assembly. The locking assembly includes two opposing buckles on the outer wall of the upper cover body 1 and two locking holes on the outer wall of the lower pot body 3 that match the buckles. When the upper cover body 1 and the lower pot body 3 are locked together, the middle pot body 2 is subjected to pressure from above and the sides, thereby being clamped and fixed to the lower pot body 3. The locking assembly is not shown in the figure. In this embodiment, the materials of the inner pot 21, the lower inner pot 31, and the separator 22 are selected from metal, ceramic, or thermally conductive plastic, and the three materials can be different, and they are joined by welding.

[0045] In this embodiment, food that has been processed under high pressure is placed in the lower inner pot 31, and food that has been processed under low pressure is placed in the middle inner pot 21. The middle inner pot 21 is placed on the lower inner pot 31, and the upper cover is placed on the middle inner pot 21. The upper cover 1 is locked to the lower pot 3, and the middle pot 2 is clamped on the lower pot 3. The first heating chamber 30 and the second heating chamber 20 are in a sealed state. The heating element 32 heats the food in the first heating chamber 30, and a high-pressure environment is formed in the first heating chamber. Part of the hot air in the first heating chamber 30 heats the second heating chamber 20 through the bottom of the middle inner pot 21, and the other part is discharged by the first venting component 23. The hot air in the second heating chamber 20 is discharged by the second venting component 13. After cooking is completed, the pressure is released, and the food is taken out.

[0046] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A dual-chamber, dual-pressure electric pressure cooker, characterized in that, The device includes a lower pot body, a middle pot body, and an upper cover body. The lower pot body contains a lower inner pot and a heating element for heating the lower inner pot. The middle pot body is equipped with a middle inner pot. The middle inner pot cover is located above the lower inner pot and seals the lower inner pot to form a first heating chamber. The upper cover body is located above the middle inner pot and seals the middle inner pot to form a second heating chamber. The first heating chamber and the second heating chamber are independent of each other. The middle pot body is provided with a first venting component for connecting or blocking the atmosphere from the first heating chamber, and the upper cover body is provided with a second venting component for connecting or blocking the atmosphere from the second heating chamber.

2. The dual-chamber dual-pressure electric pressure cooker according to claim 1, characterized in that, The middle pot body and the lower pot body are detachably connected by a locking ring assembly, and the upper cover body is detachably connected to the middle pot body.

3. The dual-chamber dual-pressure electric pressure cooker according to claim 1, characterized in that, The middle pot body is placed above the lower pot body, and the upper cover body is detachably connected to the lower pot body through a locking assembly, which clamps the middle pot body onto the lower pot body.

4. A dual-chamber, dual-pressure electric pressure cooker according to claim 1, characterized in that, The inner pot is made of a heat-conducting material. The bottom upper surface of the inner pot directly forms the bottom surface of the second heating chamber, and the bottom lower surface of the inner pot directly forms the top surface of the first heating chamber.

5. A dual-chamber, dual-pressure electric pressure cooker according to claim 1, characterized in that, The middle pot body is provided with a clearance space and an isolation component for isolating the clearance space from the second heating chamber. The first venting component protrudes into the clearance space and can discharge the hot air in the first heating chamber to the clearance space. The clearance space is connected to the atmosphere through structural gaps or connecting holes.

6. A dual-chamber dual-pressure electric pressure cooker according to claim 5, characterized in that, The isolation element is made of thermally conductive material, and the vent of the first venting component faces the gap or connecting hole of the clearance space.

7. A dual-chamber dual-pressure electric pressure cooker according to any one of claims 1 to 6, characterized in that, The inner pot is detachably connected to the outer pot body.

8. A dual-chamber dual-pressure electric pressure cooker according to any one of claims 1 to 6, characterized in that, A detachable inner lid is connected to the lower part of the middle pot body. The edge of the detachable inner lid is provided with a first sealing ring. The middle inner pot and the lower inner pot are clamped together with the first sealing ring to form a sealing structure. The detachable inner lid is provided with a vent hole that connects the upper and lower spaces of the detachable inner lid.

9. A dual-chamber dual-pressure electric pressure cooker according to any one of claims 1 to 6, characterized in that, A second sealing ring is provided between the upper cover and the inner pot. When the upper cover is placed on top of the inner pot, the upper cover and the inner pot clamp the second sealing ring.

10. A dual-chamber dual-pressure electric pressure cooker according to any one of claims 1 to 6, characterized in that, The outer wall of the middle pot is provided with two handles arranged opposite each other, and the upper end of the upper cover is provided with a handle.

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