Pot cover assembly and cooking utensil

Abstract

The pot cover assembly comprises a cover body and an inner cover, the inner cover comprises a cover plate and a sealing part surrounding the periphery of the cover plate, the cover plate is provided with a first installation area and a second installation area, and the first installation area protrudes or sinks relative to the second installation area. The pot cover assembly further comprises an exhaust assembly and a heating piece, a mounting hole used for mounting the exhaust assembly is formed in the first mounting area, a sealing ring is arranged between the mounting hole and the exhaust assembly, and the heating piece is arranged in the second mounting area. The first mounting area and the second mounting area are located at different position heights, meanwhile, the whole cover plate is of an uneven structure, heat of the second mounting area is more difficult to transfer to the first mounting area, then the heat and temperature of the first mounting area are reduced, the sealing ring is located in a relatively safe temperature environment, and the service life of the sealing ring is prolonged. And the service life of the sealing ring is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and in particular relates to a pot cover assembly and a cooking utensil. Background Art

[0002] The pot cover of the cooking utensil includes an upper cover and an inner cover. The inner cover is used to cooperate with the pot body to form a cooking space. The material of the inner cover is generally metal to have good high temperature resistance.

[0003] The inner cover is usually formed by stamping. In addition to the surrounding area used to fix the sealing ring and the pot body, the cover plate of the inner cover is generally a large-area flat structure. The cover plate of the inner cover is also equipped with many exhaust valve components for exhaust. The inner cover is made of metal, which has a fast heat transfer speed. The large flat structure further accelerates the transfer of heat on the cover plate, so that the heat on the cover plate will quickly diffuse and transfer on the large flat surface, making the temperature of each area of ​​the cover plate higher.

[0004] In order to ensure the sealing of the exhaust valve assembly, a seal is often provided at the installation position of the exhaust valve assembly. The seal may be deformed or damaged at high temperatures, resulting in a reduction in the service life of the seal. Over time, the plastic deformation of the seal may cause failure of the seal at the installation position of the exhaust valve assembly. The high-temperature gas in the pot may enter the pot cover through the gap between the two, causing the internal components of the pot cover to be corroded by the high-temperature gas and accelerate aging, thereby affecting the overall service life and reliability of the cooking appliance.

[0005] In addition, some cooking utensils are provided with a heating device on the inner cover in order to improve the heating effect of food or to achieve bubble breaking and overflow prevention during the exhaust process. This further increases the heat on the inner cover, thereby further aggravating the aging and damage of the seal. Utility Model Content

[0006] The utility model provides a pot cover assembly and a cooking utensil to solve the problem that the large plane structure of the inner cover plate has a fast heat transfer speed, so that the heat quickly reaches the sealing ring of the exhaust valve assembly, accelerates the damage of the sealing ring, and reduces the service life of the sealing ring.

[0007] The technical solution adopted by the utility model is:

[0008] A pot cover assembly comprises a cover body and an inner cover located below the cover body, the inner cover comprises a cover plate and a sealing portion surrounding the outer circumference of the cover plate, the cover plate has a first mounting area and a second mounting area, the first mounting area is protruding or sunken relative to the second mounting area, the pot cover assembly also comprises an exhaust assembly and a heating element, the first mounting area is provided with an installation hole for installing the exhaust assembly, a sealing ring is provided between the installation hole and the exhaust assembly, and the heating element is arranged in the second mounting area.

[0009] The pot cover assembly of the utility model also has the following additional technical features:

[0010] The first installation area is arranged to protrude toward the cover body relative to the second installation area, and a step portion is provided between the first installation area and the second installation area.

[0011] The first installation area is provided with an installation plane, and the installation holes are provided on the installation plane.

[0012] A mounting curved surface is arranged on one side of the second mounting area facing the cover body, and the heating element contacts the mounting curved surface to transfer heat to the second mounting area.

[0013] An elastic member is arranged between the inner cover and the cover body so that the inner cover can float up and down relative to the cover body.

[0014] The second installation area is provided with a guide column extending toward the cover body, the elastic member is sleeved on the outer periphery of the guide column, and the heating member is provided with an avoidance opening corresponding to the guide column for the guide column to pass through.

[0015] The sealing part includes a fixed flange and a pot mouth sealing ring. The cover plate is recessed or protruded relative to the fixed flange so that the fixed flange and the cover plate are at different position heights. The pot mouth sealing ring is fixed to the fixed flange.

[0016] The exhaust component comprises a float valve, an exhaust pipe and a pressure conversion component. The float valve, the exhaust pipe and the pressure conversion component are arranged in a staggered manner, and the mounting holes are arranged in a one-to-one correspondence with the float valve, the exhaust pipe and the pressure conversion component.

[0017] A sealing member is provided at the lower end of the pressure conversion member, and a vent is formed on the pressure conversion member above the sealing member. The pot cover assembly also includes a driving member, which is used to drive the pressure conversion member to move, so as to have a first position in which the sealing member is disengaged from the cover plate so that the vent is connected to the cooking cavity, and a second position in which the sealing member abuts against the cover plate so that the vent is isolated from the cooking cavity.

[0018] The utility model also discloses a cooking utensil, comprising a pot body and the pot cover assembly, wherein the sealing portion abuts against the pot mouth of the pot body for sealing, and the cover plate cooperates with the pot body to form a cooking cavity.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. In the utility model, the sealing part of the outer peripheral area of ​​the inner cover is used to seal with the pot body to form a cooking cavity, and the cover plate inside the sealing part has a first installation area and a second installation area, wherein the first installation area is protruding or sunken relative to the second installation area, so that the first installation area and the second installation area are at different heights, and the cover plate as a whole is an uneven structure rather than a flat structure. The exhaust assembly is arranged at the installation hole of the first installation area, and the heating element is arranged in the second installation area, so that the heat of the second installation area is more difficult to transfer to the first installation area, thereby reducing the heat and temperature of the first installation area, so that the sealing ring is in a relatively safe temperature environment, reducing the risk of deformation or aging damage of the sealing ring at high temperature, and increasing the service life of the sealing ring.

[0021] At the same time, the uneven structure of the cover plate enhances the structural strength of the cover plate, reduces the possibility of deformation of the cover plate, and keeps the structure and posture of the cover plate stable, thereby improving structural stability and reliability.

[0022] 2. As a preferred embodiment of the present invention, the first mounting area is arranged to protrude toward the cover body relative to the second mounting area, and a step portion is provided between the first mounting area and the second mounting area. The first mounting area is arranged to protrude upward, which, on the one hand, can avoid the food in the cooking cavity below. Even when there is a large amount of food in the cooking cavity, it can ensure that the food or the soup surface is at a relatively safe distance from the exhaust assembly on the first mounting area, thereby reducing the risk of the liquid gushing out through the exhaust assembly when the soup boils and causing overflow. On the other hand, the first mounting area protrudes so that a step portion is formed between it and the second mounting area. The step portion has a certain obstructive effect on temperature transfer, thereby reducing the heat that is finally transferred to the first mounting area on the step portion, thereby significantly reducing the temperature at the sealing ring, thereby protecting the sealing ring.

[0023] 3. As a preferred embodiment of the present invention, an elastic member is provided between the inner cover and the cover body so that the inner cover can float up and down relative to the cover body. The provision of the elastic member enables the inner cover to float up and down relative to the cover body, and then during the cooking process, when the air pressure in the pot rises, the inner cover can float upward under the pushing action of the air pressure, while the cover body remains in a fixed position, thereby maintaining the overall position stability of the pot cover, while ensuring the seal between the pot cover and the pot body. When the pressure in the pot exceeds the set maximum pressure value, the inner cover moves upward a greater distance under the thrust, so that the sealing part and the pot body are separated from the seal, and the gas in the pot is discharged through the gap between the pot cover and the pot body, thereby achieving protective pressure relief. The inner cover can float upward under the push of the air pressure in the pot, which can alleviate the pushing force on the inner cover, thereby reducing the risk of deformation or damage caused by excessive force on the inner cover.

[0024] 4. As a preferred embodiment of the utility model, the sealing portion includes a fixed flange and a pot mouth sealing ring, the cover plate is recessed or protruded relative to the fixed flange, so that the fixed flange and the cover plate are at different position heights, and the pot mouth sealing ring is fixed to the fixed flange. The pot mouth sealing ring is fixed to the fixed flange, and is used to abut and seal with the mouth of the pot body to seal the cooking cavity. The fixed position of the pot mouth sealing ring is at a different position height from the heating element, that is, the second installation area, so that there is also a step between the fixed flange and the second installation area, which can also block the heat of the second installation area, reduce the heat transferred to the fixed flange, and then reduce the influence of high temperature on the pot mouth sealing ring, improve the service life and reliability of the pot mouth sealing ring, and keep it reliably sealed with the pot body.

[0025] 5. As a preferred embodiment of the present invention, the exhaust assembly includes a pressure conversion member, a sealing member is provided at the lower end of the pressure conversion member, and a vent is provided above the sealing member. The pot cover assembly also includes a driving member, and the driving member is used to drive the pressure conversion member to move, so as to have a first position in which the sealing member is separated from the cover plate so that the vent is connected to the cooking cavity, and a second position in which the sealing member abuts against the cover plate so that the vent is isolated from the cooking cavity. The pressure conversion member can float up and down relative to the inner cover so that the cooking utensil has a pressure-free mode and a pressure mode. In the pressure-free mode, the cooking cavity is connected to the outside atmosphere through the pressure conversion member, and the pot is in a normal pressure state. At this time, the user can perform normal pressure cooking operations. In the pressure mode, the cooking cavity is isolated from the pressure conversion member, so that the cooking utensil can be normally pressurized, and at this time, the user can perform pressure cooking. Thus, the multi-functional integration of pressure cooking and normal pressure cooking is achieved through one cooking utensil, and the user experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0027] Figure 1 A cross-sectional view of a portion of a cooking utensil in one embodiment of the present invention;

[0028] Figure 2 This is a schematic structural diagram of an inner cover in one embodiment of the utility model;

[0029] Figure 3 for Figure 2 Structural explosion view of the middle inner cover;

[0030] Figure 4 This is a schematic diagram of the structure of the inner cover in one embodiment of the utility model, wherein the exhaust assembly and the heating element are not shown;

[0031] Figure 5 for Figure 4 a cross-sectional view of the middle inner cover;

[0032] Figure 6 This is a cross-sectional view of an inner cover according to an embodiment of the present utility model;

[0033] Figure 7 for Figure 6 A cross-sectional view of the middle inner cover from another perspective;

[0034] Figure 8 It is a cross-sectional view of a partial area of ​​a pot cover assembly in one embodiment of the utility model.

[0035] in:

[0036] 1 pot cover assembly; 11 inner cover; 111 sealing portion; 1111 fixed flange; 1112 fixed sink; 1113 pot mouth sealing ring; 112 cover plate; 1121 first installation area; 1122 second installation area; 1123 step portion; 1124 installation hole; 1125 installation plane; 1126 installation curved surface; 12 cover body; 13 fixed bracket;

[0037] 2 exhaust assembly; 21 float valve; 22 exhaust pipe; 23 pressure conversion element; 231 vent; 232 sealing element;

[0038] 3. Heating element;

[0039] 4 guide columns. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0042] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0045] like Figure 1 , Figure 2 As shown, a pot cover assembly 1 includes a cover body 12 and an inner cover 11 located below the cover body 12, the inner cover 11 includes a cover plate 112 and a sealing portion 111 surrounding the outer periphery of the cover plate 112, the cover plate 112 has a first installation area 1121 and a second installation area 1122, the first installation area 1121 is protruding or sunken relative to the second installation area 1122, the pot cover assembly 1 also includes an exhaust assembly 2 and a heating element 3, the first installation area 1121 is provided with a mounting hole 1124 for installing the exhaust assembly 2, a sealing ring is provided between the mounting hole 1124 and the exhaust assembly 2, and the heating element 3 is arranged in the second installation area 1122.

[0046] In the utility model, the sealing part 111 in the outer peripheral area of ​​the inner cover 11 is used to seal with the pot body to form a cooking cavity, and the cover plate 112 inside the sealing part 111 has a first installation area 1121 and a second installation area 1122, wherein the first installation area 1121 is protruding or sunken relative to the second installation area 1122, so that the first installation area 1121 and the second installation area 1122 are at different heights, and the cover plate 112 as a whole is an uneven structure rather than a flat structure. The exhaust assembly 2 is arranged at the installation hole 1124 of the first installation area 1121, and the heating element 3 is arranged in the second installation area 1122, so that the heat of the second installation area 1122 is more difficult to transfer to the first installation area 1121, thereby reducing the heat and temperature of the first installation area 1121, so that the sealing ring is in a relatively safe temperature environment, reducing the risk of deformation or aging damage of the sealing ring at high temperature, and increasing the service life of the sealing ring.

[0047] At the same time, the cover plate 112 has an uneven structure, which, compared with the cover plate 112 having a large flat structure as a whole, also enhances the structural strength of the cover plate 112, reduces the possibility of deformation of the cover plate 112, and keeps the structure and posture of the cover plate 112 stable, thereby improving the structural stability and reliability.

[0048] Preferably, the inner cover 11 is made of stainless steel to have good anti-rust, pressure resistance and heat transfer functions, and has high strength and is not easily deformed.

[0049] In addition, as a preference, the inner cover 11 is non-detachably fixed to the cover body 12 so that the heating element 3 is not exposed.

[0050] It should be noted that the protrusion or sinking of the first installation area 1121 relative to the second installation area 1122 is not absolute, and is determined by the overall posture of the cover plate 112 and the reference surface. For example, when the upper side of the cover plate 112 (the side facing the cover body 12) is used as the reference surface, the first installation area 1121 protrudes relative to the second installation area 1122, so that the first installation area 1121 is higher than the second installation area 1122. If the lower side of the cover plate 112 (the side away from the cover body 12) is selected as the reference surface, the above scheme is that the first installation area 1121 sinks relative to the second installation area 1122. Therefore, in the utility model, as long as the first installation area 1121 and the second installation area 1122 are at different heights, the specific protruding direction of the first installation area 1121 is not limited.

[0051] As a preferred implementation of the present invention, Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the first installation area 1121 is protruded toward the cover body 12 relative to the second installation area 1122 , and a step portion 1123 is provided between the first installation area 1121 and the second installation area 1122 .

[0052] The first mounting area 1121 is configured to protrude upwards, which can avoid the food in the cooking cavity below. Even when there is a large amount of food in the cooking cavity, it can ensure that the food or the soup surface is at a relatively safe distance from the exhaust assembly 2 on the first mounting area 1121, thereby reducing the risk of the liquid gushing out through the exhaust assembly 2 when the soup boils and causing the pot to overflow. On the other hand, the first mounting area 1121 is protruding so that a step portion 1123 is formed between it and the second mounting area 1122. The step portion 1123 has a certain obstruction effect on temperature transfer, so that the heat in the first mounting area 1121 that is finally transferred to the step portion 1123 is reduced, thereby significantly reducing the temperature at the sealing ring, which plays a role in protecting the sealing ring.

[0053] In addition, the step portion 1123 also serves as a dividing line between the appearance and function of the cover plate 112, and the first installation area 1121 can be exposed to the cover body 12, so as to facilitate better exhaust of the exhaust assembly 2 and facilitate the user to clean the exhaust assembly 2. The second installation area 1122 is a hidden area, so that the user cannot see the heating element 3, which improves the appearance.

[0054] Preferably, if Figure 5 As shown, the first mounting area 1121 is provided with a mounting plane 1125, and the mounting hole 1124 is provided on the mounting plane 1125. The exhaust assembly 2 cooperates with the mounting hole 1124 on the mounting plane 1125, making the installation and cooperation of the exhaust assembly 2 simpler and easier to seal.

[0055] Preferably, if Figure 5 As shown, a mounting curved surface 1126 is provided on a side of the second mounting area 1122 facing the cover body 12 , and the heating element 3 contacts the mounting curved surface 1126 to transfer heat to the second mounting area 1122 .

[0056] The second installation area 1122 is a curved surface structure with a smooth transition, which makes it easier to fix the heating element 3, and the heating element 3 and the second installation area 1122 have a better fit. While improving the fixing stability of the heating element 3, it also improves the heat transfer efficiency between the heating element 3 and the second installation area 1122, thereby improving heat utilization and reducing heat loss.

[0057] It should be noted that the present invention does not limit the fixing method of the heating element 3 and the second installation area 1122. Preferably, the heating element 3 is fixed to the second installation area 1122 by gluing. Of course, the heating element 3 can also be fixed by other methods, such as screw fixing, welding fixing, buckle fixing, etc., which are not limited here.

[0058] Specifically, Figure 4 As shown, the area of ​​the first installation area 1121 is smaller than the area of ​​the second installation area 1122, so as to increase the heating area of ​​the heating element 3 and improve the heating effect. The first installation area 1121 and the second installation area 1122 can be arranged on both sides of the cover plate 112, or the second installation area 1122 can surround the first installation area 1121, which is not limited here.

[0059] In a preferred embodiment, an elastic member is provided between the inner cover 11 and the cover body 12 so that the inner cover 11 can float up and down relative to the cover body 12 .

[0060] The inner cover 11 can float up and down relative to the cover body 12 by setting the elastic member, and then during the cooking process, when the air pressure in the pot rises, the inner cover 11 can float upward under the pushing action of the air pressure, while the cover body 12 remains fixed in position, thereby maintaining the overall position stability of the pot cover, and ensuring the seal between the pot cover and the pot body. When the pressure in the pot exceeds the set maximum pressure value, the inner cover 11 moves upward a large distance under the thrust, so that the sealing part 111 is separated from the pot body, and the gas in the pot is discharged through the gap between the pot cover and the pot body, thereby achieving protective pressure relief. The inner cover 11 can float upward under the push of the air pressure in the pot, which can alleviate the pushing force on the inner cover 11, thereby reducing the risk of deformation or damage of the inner cover 11 due to excessive force.

[0061] Preferably, the elastic member is a spring to save costs and simplify the structure.

[0062] Furthermore, if Figure 2 , Figure 4 , Figure 5 As shown, the second installation area 1122 is provided with a guide column 4 extending toward the cover body 12, the elastic member is sleeved on the outer periphery of the guide column 4, and the heating element 3 is provided with an escape opening corresponding to the guide column 4 for the guide column 4 to pass through.

[0063] The elastic part is sleeved on the outer periphery of the guide column 4. During the deformation process, the guide column 4 can limit the elastic part so that the elastic part always deforms in the up and down directions without tilting, thereby improving the deformation reliability of the elastic part, thereby providing a stable elastic force for the inner cover 11 and increasing the service life of the elastic part.

[0064] The heating element 3 avoids the elastic element through the avoidance opening to avoid interference between the elastic element and the heating element 3 .

[0065] Preferably, if Figure 5 As shown, a plurality of guide posts 4 are evenly spaced along the circumference of the cover plate 112, and the elastic members are arranged one-to-one correspondingly to the guide posts 4, so that the elastic members provide uniform elastic force to the circumference of the inner cover 11, so that the inner cover 11 floats up and down stably without tilting.

[0066] As a preferred embodiment of the present invention, Figure 5 , Figure 6 , Figure 7 As shown, the sealing portion 111 includes a fixed flange 1111 and a pot mouth sealing ring 1113. The cover plate 112 is recessed or protruded relative to the fixed flange 1111 so that the fixed flange 1111 and the cover plate 112 are at different position heights. The pot mouth sealing ring 1113 is fixed to the fixed flange 1111.

[0067] The pot mouth sealing ring 1113 is fixed to the fixed flange 1111 and is used to abut and seal with the mouth of the pot body to seal the cooking cavity. The fixed position of the pot mouth sealing ring 1113 and the heating element 3, that is, the second installation area 1122 are at different heights, so that there is also a step between the fixed flange 1111 and the second installation area 1122, which can also block the heat of the second installation area 1122, reduce the heat transferred to the fixed flange 1111, and then reduce the impact of high temperature on the pot mouth sealing ring 1113, improve the service life and reliability of the pot mouth sealing ring 1113, so that it can maintain a reliable seal with the pot body.

[0068] Specifically, Figure 6 , Figure 7 As shown, the cover plate 112 protrudes away from the cover body 12 relative to the sealing portion 111 to increase the space between the cover plate 112 and the cover body 12 and facilitate the installation of various components. On this basis, the first installation area 1121 further protrudes toward the cover body 12 relative to the second installation area 1122.

[0069] Preferably, if Figure 8 As shown, the inner cover 11 further includes a fixing bracket 13, which is located at the fixing flange 1111 and cooperates with the fixing flange 1111 to clamp and fix the pot mouth sealing ring 1113. Further, the fixing bracket 13 and the fixing flange 1111 are respectively provided with fixing holes, and the fixing flange 1111 and the fixing bracket 13 are fastened and connected by fasteners passing through, so as to provide clamping force for the pot mouth sealing ring 1113. Preferably, the fixing flange 1111 is provided with a fixing sink 1112 for accommodating at least a part of the area of ​​the fastener.

[0070] It should be noted that the present invention does not limit the type and quantity of the exhaust assembly 2, which can be set according to the type of cooking utensil as long as it is used for the exhaust function.

[0071] In one embodiment, the cooking utensil is a normal pressure cooking utensil, such as an electric rice cooker, etc. At this time, the exhaust component 2 is an exhaust valve, and the gas in the pot is discharged in time during the cooking process of the user, so that the cooking cavity maintains a normal pressure environment.

[0072] In another embodiment, the cooking appliance is a pressure cooking appliance, such as an electric pressure cooker. In this case, the exhaust assembly 2 includes a float valve 21 and an exhaust pipe 22. The float valve 21 is used to discharge the cold air in the pot before the pressure in the pot is increased. As the gas in the pot increases, the gas pushes the float valve 21 to float and seal. A weight is provided at the upper end of the exhaust pipe 22 for exhaust and pressure relief after pressure cooking is completed.

[0073] In another embodiment, the cooking appliance is a multifunctional cooking appliance capable of switching between normal pressure cooking and pressure cooking. Figure 3 , Figure 6 , Figure 7 As shown, the exhaust assembly 2 includes a float valve 21 , an exhaust pipe 22 and a pressure conversion element 23 .

[0074] At least part of the area of ​​the pressure conversion member 23 can float up and down, so that the cooking cavity is connected with the outside world through the pressure conversion member 23, so that the gas in the pot can be discharged in time, and normal pressure cooking is achieved. Or the cooking cavity is isolated from the outside world at the pressure conversion member 23, and the cooking appliance can normally perform the pressure-up step. As the float valve 21 is lifted and sealed, the exhaust pipe 22 is blocked by a heavy hammer, so that the inside of the pot is completely isolated from the outside world, and pressure cooking can be performed at this time.

[0075] Preferably, when the exhaust assembly 2 includes multiple exhaust components, such as the float valve 21, the exhaust pipe 22 and the pressure conversion component 23 in the above-mentioned embodiment 3, the three are staggered and the mounting hole 1124 is arranged one by one with the float valve 21, the exhaust pipe 22 and the pressure conversion component 23.

[0076] So that each exhaust component exhausts air through its own channel instead of a shared channel. This can avoid the problem of difficulty in designing the inner diameter of the pipe due to the need for multiple functions at the same time. Taking the exhaust pipe 22 and the pressure conversion component 23 as an example, if the two share a pipe for exhaust, it is necessary to take into account both the exhaust pressure relief and pressure-maintaining cooking functions. It is necessary to consider both the working pressure (requiring a smaller vent pipe aperture) and the sufficient air output (requiring a larger vent pipe aperture), which makes it difficult to perform a balanced design and has poor adaptability.

[0077] Preferably, the inner diameter of the inner channel of the pressure conversion member 23 is larger than the inner diameter of the exhaust pipe 22. In the non-pressure mode, the pressure conversion member 23 can be used to discharge the gas in the cooking cavity in time. Therefore, in the non-pressure mode, the weight hammer does not need to be operated, so that it still blocks the exhaust pipe 22, thereby reducing the difficulty of operating the cooking appliance when switching between modes. When the cooking appliance switches between the non-pressure mode and the pressure mode, as few parts as possible move or switch positions, thereby improving reliability and reducing the difficulty of operation.

[0078] Specifically, Figure 7 As shown, a sealing member 232 is provided at the lower end of the pressure conversion member 23, and a vent 231 is opened on the pressure conversion member 23 above the sealing member 232. The pot cover assembly 1 also includes a driving assembly, which is used to drive the pressure conversion member 23 to move, so as to have a first position in which the sealing member 232 is disengaged from the cover plate 112 so that the vent 231 is connected to the cooking cavity, and a second position in which the sealing member 232 is abutted against the cover plate 112 so that the vent 231 is isolated from the cooking cavity.

[0079] The pressure conversion member 23 can float up and down relative to the inner cover 11, so that the cooking appliance has a non-pressure mode and a pressure mode. In the non-pressure mode, the cooking cavity is connected to the outside atmosphere through the pressure conversion member 23, and the pot is in a normal pressure state. At this time, the user can perform normal pressure cooking operations. In the pressure mode, the cooking cavity is isolated from the pressure conversion member 23, so that the cooking appliance can be normally pressurized, and the user can perform pressure cooking. In this way, the multi-functional integration of pressure cooking and normal pressure cooking is achieved through a cooking appliance, which improves the user experience.

[0080] It should be noted that the pressure conversion member 23 can move up and down to achieve the connection or isolation between the vent 231 and the cooking cavity. The driving component can drive the pressure conversion member 23 unidirectionally. For example, the driving component is only used to drive the pressure conversion member 23 to move downward, while the upward movement of the pressure conversion member 23 is driven upward by other components by additionally providing structures such as elastic reset members. The driving component can also drive the pressure conversion member 23 bidirectionally, that is, no elastic reset member or other driving structure is provided, and the pressure conversion member 23 can be pressed downward to move downward, or lifted upward to move up and down, only by the driving component, which is not limited here.

[0081] In addition, the driving mode of the driving component can be manually operated by the user. For example, the pot cover is also provided with an operating handle, and the user can press, lift or rotate the operating handle to move the driving component, thereby driving the pressure conversion element 23. The driving component can also be electrically driven, and the pressure conversion element 23 can be automatically controlled by providing a motor, an electromagnet, etc.

[0082] Moreover, the pressure conversion member 23 can be moved up and down as a whole to switch the state, or a part of the region can be moved to switch the state, for example, the overall position of the pressure conversion member 23 remains unchanged, and the valve core inside it can move up and down to open or close the vent 231. Alternatively, the pressure conversion member 23 is a structure in which multiple tubes are set, wherein the outer tube remains in position, and the inner tube can move up and down to open or close the vent 231.

[0083] The utility model also discloses a cooking utensil, comprising a pot body and the pot cover assembly 1, wherein a sealing portion 111 abuts against and seals the pot opening of the pot body, and a cover plate 112 cooperates with the pot body to form a cooking cavity.

[0084] The heat of the heating element 3 can be transferred to the cooking cavity through the second installation area 1122, thereby achieving common heating of the upper and lower cooking cavities, improving the uniformity of heating of the food, and also increasing the temperature of the inner cover 11. When the bubbles and liquid bubbles in the pot rise to this point, it helps to burst the bubbles, thereby achieving an anti-overflow effect. In addition, due to the change in height between the first installation area 1121 and the second installation area 1122, a large amount of heat from the second installation area 1122 will not be transferred to the first installation area 1121, thereby ensuring the sealing reliability and service life of the sealing ring in the first installation area 1121.

[0085] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0086] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0087] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A pot cover assembly, comprising a cover body and an inner cover located below the cover body, characterized in that: The inner cover includes a cover plate and a sealing portion surrounding the outer circumference of the cover plate, the cover plate has a first installation area and a second installation area, the first installation area is protruding or sunken relative to the second installation area, the pot cover assembly also includes an exhaust assembly and a heating element, the first installation area is provided with a mounting hole for installing the exhaust assembly, a sealing ring is provided between the mounting hole and the exhaust assembly, and the heating element is arranged in the second installation area.

2. The pot cover assembly according to claim 1, characterized in that: The first installation area is arranged to protrude toward the cover body relative to the second installation area, and a step portion is provided between the first installation area and the second installation area.

3. The pot cover assembly according to claim 1, characterized in that: The first installation area is provided with an installation plane, and the installation hole is provided on the installation plane.

4. The pot cover assembly according to claim 1, characterized in that: A mounting curved surface is disposed on a side of the second mounting area facing the cover body, and the heating element contacts the mounting curved surface to transfer heat to the second mounting area.

5. The pot cover assembly according to claim 1, characterized in that: An elastic member is arranged between the inner cover and the cover body, so that the inner cover can float up and down relative to the cover body.

6. The pot cover assembly according to claim 5, characterized in that: The second installation area is provided with a guide column extending toward the cover body, the elastic member is sleeved on the outer circumference of the guide column, and the heating member is provided with an escape opening corresponding to the guide column for the guide column to pass through.

7. The pot cover assembly according to claim 1, characterized in that: The sealing part includes a fixed flange and a pot mouth sealing ring. The cover plate is recessed or protruded relative to the fixed flange so that the fixed flange and the cover plate are at different position heights. The pot mouth sealing ring is fixed to the fixed flange.

8. The pot cover assembly according to claim 1, characterized in that: The exhaust assembly comprises a float valve, an exhaust pipe and a pressure conversion component. The float valve, the exhaust pipe and the pressure conversion component are arranged in a staggered manner. The mounting holes are arranged in a one-to-one correspondence with the float valve, the exhaust pipe and the pressure conversion component.

9. The pot cover assembly according to claim 8, characterized in that: A sealing member is provided at the lower end of the pressure conversion member, and a vent is formed on the pressure conversion member above the sealing member. The pot cover assembly also includes a driving member, and the driving member is used to drive the pressure conversion member to move so as to have a first position in which the sealing member is disengaged from the cover plate so that the vent is connected to the cooking cavity, and a second position in which the sealing member abuts against the cover plate so that the vent is isolated from the cooking cavity.

10. A cooking utensil, comprising a pot, characterized in that: It also includes the pot cover assembly according to any one of claims 1 to 9, wherein the sealing portion abuts against and seals the pot mouth of the pot body, and the cover plate cooperates with the pot body to form a cooking cavity.

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