A cooking utensil

Abstract

The present application discloses a cooking utensil, comprising a pot cover and a pressure-limiting valve assembly arranged on the pot cover, the pressure-limiting valve assembly comprising an exhaust pipe and a weight, the pot cover is provided with a cavity for accommodating the weight and an exhaust cover covering the cavity, the exhaust cover is provided with an exhaust hole, the weight is movably arranged on the exhaust pipe, so that the weight moves along the cavity to switch between a sealing position that seals the exhaust pipe and an exhaust position that releases the seal, in which the exhaust pipe is communicated with the exhaust hole, and further comprising a sealing member, the sealing member having a through hole for the weight to move up and down, in which the sealing member is sealed and cooperated with the weight to separate the cavity into a main exhaust cavity and an air pressure balance cavity, the exhaust pipe is communicated with the exhaust hole through the main exhaust cavity, thereby preventing gas from flowing back and affecting components inside the pot cover, thereby extending the service life of the components inside the pot cover.

Description

Technical Field

[0001] The present application belongs to the technical field of kitchen appliances, and specifically relates to a cooking utensil. Background Art

[0002] The pressure cooker lid is provided with a pressure-limiting valve to cooperate with the heating unit in the cooker body to control the pressure in the cooking chamber of the pressure cooker. The pressure-limiting valve includes a weight and an exhaust pipe. The weight is driven by a push rod provided on the lid to move to open or close the exhaust pipe to achieve exhaust or sealing.

[0003] In the prior art, to prevent noise from being generated during the exhaust and pressure relief phase of a pressure cooker, which affects the user experience, a noise-reducing exhaust cover is added to the cooktop lid. The exhaust cover is provided with an exhaust hole that is connected to the outside world. Although the exhaust cover achieves noise reduction to a certain extent, the airflow during the exhaust process is also blocked by the exhaust cover, resulting in backflow. To address this problem, existing pressure cookers place a sealing ring outside the exhaust pipe to prevent gas backflow. The edge of the sealing ring is fixed to the cooktop lid, and a weight is located above the sealing ring. With this design, when the weight needs to be moved up to open the exhaust pipe, the push rod needs to push up the sealing ring to indirectly drive the weight up. After long-term use, the push rod repeatedly pushes up the sealing ring, causing the sealing ring to rupture and cause the seal to fail. Moreover, the sealing ring is fixed to the cooktop lid and cannot be removed. Over time, the sealing ring accumulates serious stains and is difficult to clean.

[0004] In addition, as long as the pressure cooker is used, hot air will be ejected from the exhaust cover during the pressure relief process. The exhaust cover may be affected by scale and even accumulation of food residues due to overflowing pot, and the drain cover needs to be cleaned. Therefore, most existing exhaust covers are of detachable design. When assembling the existing exhaust cover, it is with the help of a latch post provided on the exhaust cover. The pot cover is provided with a silicone hole adapted to the latch post. Sufficient attention needs to be paid to aligning the latch post and the silicone hole during assembly, resulting in low assembly efficiency and reduced user experience. Summary of the Invention

[0005] The present application provides a cooking appliance to solve at least one of the above technical problems.

[0006] The technical solutions adopted in this application are:

[0007] A cooking utensil comprises a pot cover and a pressure-limiting valve assembly arranged on the pot cover, the pressure-limiting valve assembly comprises an exhaust pipe and a weight, the pot cover is provided with a cavity for accommodating the weight and an exhaust cover covering the cavity, the exhaust cover is provided with an exhaust hole, the weight is movably arranged on the exhaust pipe so that the weight moves along the cavity to switch between a sealing position that seals the exhaust pipe and an exhaust position that releases the seal, in which the exhaust pipe is communicated with the exhaust hole, and further comprises a sealing member, the sealing member having a through hole for the weight to move up and down, in which the sealing member is sealed and cooperated with the weight to separate the cavity into a main exhaust chamber and an air pressure balance chamber, and the exhaust pipe is communicated with the exhaust hole through the main exhaust chamber.

[0008] The cooking appliance in this application also includes the following additional technical features:

[0009] The pot cover includes a pressure-bearing cover, the exhaust pipe is arranged on the pressure-bearing cover, and the sealing component includes a sealing body and a sealing lip fixedly connected to the sealing body. When the cooking utensil is in an upward pressure state, the heavy hammer floats upward with the pressure-bearing cover to seal with the sealing lip.

[0010] The sealing member comprises a sealing body and a sealing lip fixedly connected to the sealing body. When the cooking utensil is in a non-pressed state, a gap is provided between the sealing lip and the weight.

[0011] The central axis of the sealing lip is staggered with the central axis of the sealing body, and the distance between the central axis of the sealing lip and the central axis of the pot cover is greater than the distance between the central axis of the sealing body and the central axis of the pot cover.

[0012] The sealing lip has a fixed end fixedly connected to the sealing body and a free end away from the fixed end. The inner diameter of the sealing lip gradually decreases from the fixed end to the free end.

[0013] The seal is fixed to the exhaust cover, and the exhaust cover is detachably mounted on the pot cover. A receiving chamber for receiving the seal is formed in the exhaust cover. In the exhaust position, the receiving chamber is divided into an upper chamber and a lower chamber by the seal. The upper chamber constitutes the main exhaust chamber, and the lower chamber constitutes a part of the air pressure balance chamber.

[0014] The exhaust cover comprises a cover body and a pressing plate, the sealing member is clamped and fixed between the cover body and the pressing plate, and the pressing plate is detachably connected to the cover body.

[0015] The pot cover is provided with a mounting groove adapted to the exhaust cover, and the inner side wall of the mounting groove and / or the outer side wall of the exhaust cover are provided with damping ribs.

[0016] The pot cover includes an upper cover, the exhaust cover and the sealing member are both fixed to the upper cover, a receiving chamber for receiving the sealing member is formed in the exhaust cover, and in the exhaust position, the receiving chamber is divided into an upper chamber and a lower chamber by the sealing member, the upper chamber constitutes the main exhaust chamber, and the lower chamber constitutes a part of the air pressure balance chamber.

[0017] The pot lid is also provided with a handle and a push rod, the push rod is pivotally connected to the pot lid, the handle is provided with a pressing portion for driving the push rod, one end of the push rod is located below the pressing portion so as to be driven to rotate by the pressing portion, and the other end of the push rod extends into the cavity and drives the weight to move upward to achieve switching from the sealing position to the exhaust position.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0019] 1. The sealing member in the present application is sleeved on the outside of the weight. At the exhaust position, the sealing member and the weight cooperate in sealing to separate the cavity into a main exhaust cavity and an air pressure balance cavity. The exhaust pipe is connected to the exhaust hole through the main exhaust cavity. The pressure in the air pressure balance cavity is slightly higher than the external atmospheric pressure. By virtue of the characteristic of air flow from high pressure to low pressure, the hot air flow discharged from the exhaust pipe can be directly discharged into the main exhaust cavity and discharged through the exhaust hole. In addition, at the exhaust position, the sealing member and the weight cooperate in sealing, thereby preventing the air flow with a backflow tendency due to the obstruction of the exhaust cover from flowing back into the air pressure balance cavity, thereby preventing the air flow from flowing back to the inside of the pot cover, forming effective protection for the components in the pot cover, and extending the service life of the components in the pot cover. Compared with the technical solution in the prior art that prevents backflow of airflow by placing a sealing sleeve on the outside of the exhaust pipe, the sealing member in the present application is located on the outside of the weight. When the weight needs to be driven by the push rod to switch from the sealing position to the exhaust position, the push rod does not need to indirectly push the weight to move by pushing the sealing ring, but can directly drive the weight to move, thereby avoiding the phenomenon of sealing failure caused by repeated pushing of the sealing ring and improving the service life of the sealing ring.

[0020] 2. As a preferred embodiment of the present application, the seal includes a sealing body and a sealing lip that can be sealed with a weight, and when the cooking utensil is in an upward pressure state, the weight can move upward with the pressure cover to seal with the sealing lip. For some cooking utensils with a grease draining function, the sealing cooperation between the sealing lip and the weight in the upward pressure state can ensure the sealing performance between the pot cover and the pot body, thereby ensuring the grease draining effect.

[0021] Because the center of the pot lid is a plane-like structure with a bend on the outside, when the pressure inside the pot reaches a certain value, the center of the pot lid will deform upward, and the deformation will decrease as it approaches the edge. During the upward pressure process, the weight will move upward in a direction toward the edge of the pot lid under the action of the pressure inside the pot. Therefore, during the upward pressure state, if the various parts of the sealing ring are coaxially arranged, the weight will deviate during the upward movement of the weight, resulting in a poor seal between the sealing ring and the weight, and air leakage. Therefore, as a preferred embodiment under this embodiment, the central axis of the sealing lip is offset from the central axis of the sealing body, and the distance between the central axis of the sealing lip and the central axis of the pot lid is greater than the distance between the central axis of the sealing body and the central axis of the pot lid. That is, the sealing lip is eccentrically designed compared to the sealing body, and the position of the central axis of the sealing lip is closer to the edge of the pot lid than the central axis of the pot lid. By limiting the eccentricity, the weight can always maintain a seal with the various parts of the sealing lip during the upward pressure process, ensuring the sealing performance of the pot lid.

[0022] 3. As a preferred embodiment of the present application, when the cooking appliance is in an unpressurized state, there is a gap between the sealing lip and the weight, and there is a certain movement distance between the weight and its target exhaust position. This ensures that when the cooking appliance needs to open the lid to perform the deodorizing or fat draining function during the intermediate cooking stage before pressure relief, the weight can also move upward to reach the exhaust position (i.e., the position sealed with the sealing lip) to ensure the realization of the corresponding function. In addition, in the unpressurized state, the configuration of the gap and distance between the sealing lip and the weight ensures that when the seal has the possibility of detachable installation, the weight will not interfere with the seal or generate installation resistance during the assembly process of the seal, thereby facilitating the assembly of the seal and avoiding the risk of seal deformation or even failure due to assembly interference.

[0023] 4. As a preferred embodiment of the present application, the sealing lip has a fixed end fixedly connected to the sealing body, and a free end away from the fixed end. The inner diameter of the sealing lip gradually decreases from the fixed end to the free end, that is, the sealing lip has a necking structure, so that during the pressing process and when the weight moves from the sealing position to the exhaust position, the sealing lip can not only achieve sealing cooperation with the weight, but also make the weight encounter less resistance when moving along the through hole of the seal, thereby ensuring the smooth movement of the weight.

[0024] 5. As a preferred embodiment of the present application, the seal is fixed to the exhaust cover which is detachably connected to the pot cover, so that the seal can be removed from the pot cover synchronously with the exhaust cover, making it convenient for users to clean the seal, avoiding dirt and grime accumulation in the seal, and providing a pleasant user experience. And preferably, a accommodating chamber for accommodating the seal is formed in the exhaust cover. At the exhaust position, the accommodating chamber is divided into an upper chamber and a lower chamber by the seal. The upper chamber constitutes the main exhaust chamber, and the lower chamber constitutes a part of the air pressure balance chamber. By arranging the accommodating chamber for accommodating the seal in the exhaust cover, on the one hand, sufficient space is provided for the deformation of the seal. On the other hand, when the movement stroke of the weight is constant when moving from the sealing position to the exhaust position, the cavity is formed by a part of the upper cover and a part of the exhaust cover, which greatly reduces the volume of the cavity at the upper cover. In the embodiment where the cavity at the upper cover is formed by a concave part of the upper cover, the reduction in the volume of the cavity at the upper cover can reduce the degree of concave part of the upper cover, thereby avoiding interference between the concave part of the upper cover and other components in the pot cover, and to a certain extent can reduce the overall thickness of the pot cover assembly to achieve lightness and thinness.

[0025] Furthermore, the sealing member is detachably mounted on the exhaust cover, thereby facilitating both assembly and replacement of the sealing member to ensure a good sealing effect.

[0026] 6. As a preferred embodiment of the present application, the pot lid is provided with a mounting groove adapted to the exhaust cover, and the inner wall of the mounting groove and / or the outer wall of the exhaust cover are provided with damping ribs. The provision of the damping ribs can not only improve the tight fit between the mounting groove and the exhaust cover and prevent the exhaust cover from falling off, but also increase the feel during the installation of the exhaust cover and enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 This is a cross-sectional view of the pot cover of the cooking utensil in one embodiment of the present application when the pot cover is in a non-pressed state.

[0029] Figure 2 for Figure 1 Magnified view of part A.

[0030] Figure 3 This is a cross-sectional view of the pot cover when the cooking utensil is in an upward pressure state according to one embodiment of the present application.

[0031] Figure 4 for Figure 3Enlarged view of part B.

[0032] Figure 5 This is a cross-sectional view of the pot cover when the weight in the cooking utensil is in the exhaust position according to one embodiment of the present application.

[0033] Figure 6 for Figure 5 Enlarged view of part C.

[0034] Figure 7 This is a cross-sectional view of the exhaust cover and the sealing member after assembly according to one embodiment of the present application.

[0035] Figure 8 This is a three-dimensional diagram of a seal according to one embodiment of the present application.

[0036] Figure 9 This is a three-dimensional diagram of an exhaust cover according to an embodiment of the present application.

[0037] Figure 10 A three-dimensional exhaust lower cover according to an embodiment of the present application Figure 1 .

[0038] Figure 11 A three-dimensional exhaust lower cover according to an embodiment of the present application Figure 2 .

[0039] Figure 12 This is a bottom view of a pot lid according to one embodiment of the present application.

[0040] in,

[0041] 1. pot cover, 11. cavity, 111. main exhaust chamber, 112. air pressure balance chamber, 12. upper cover, 13. pressure cover;

[0042] 2. Heavy hammer;

[0043] 3. Exhaust pipe;

[0044] 4. Seal, 41. Seal body, 42. Seal lip, 43. Folding portion, 44. Limiting hole;

[0045] 5. Exhaust cover, 51. Exhaust upper cover, 511. Clamping protrusion, 512. Guide slope, 52. Exhaust lower cover, 521. Clamping position, 522. Limiting column, 53. Pressing plate, 54. Sealing ring, 55. Exhaust hole, 56. Accommodation cavity;

[0046] 6. Rotating seat;

[0047] 7. Handle, 71. Pressing part;

[0048] 8. Putting. DETAILED DESCRIPTION

[0049] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0050] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.

[0051] In addition, in the description of the present application, 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. They are only for the convenience of describing the present application 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. Therefore, they cannot be understood as limitations on the present application.

[0052] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a 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 "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. 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.

[0054] like Figures 1 to 12As shown, a cooking appliance includes a pot cover 1 and a pressure limiting valve assembly provided on the pot cover 1, the pressure limiting valve assembly including an exhaust pipe 3 and a weight 2, the pot cover 1 is provided with a cavity 11 for accommodating the weight 2 and an exhaust cover 5 provided on the cavity 11, the exhaust cover 5 is provided with an exhaust hole 55, the weight 2 is movably provided on the exhaust pipe 3, so that the weight 2 moves along the cavity 11 to switch between a sealing position for sealing the exhaust pipe 3 and a venting position for releasing the seal, as shown in FIG. Figure 5 and Figure 6 As shown, in the exhaust position, the exhaust pipe 3 is connected to the exhaust hole 55, and also includes a seal 4, which has a through hole for the weight 2 to move up and down. In the exhaust position, the seal 4 is sealed with the weight 2 to separate the cavity into a main exhaust chamber 111 and an air pressure balance chamber 112, and the exhaust pipe 3 is connected to the exhaust hole 55 through the main exhaust chamber 111.

[0055] The sealing member 4 in the present application is sleeved on the outside of the weight 2. In the exhaust position, the sealing member 4 and the weight 2 are sealed to separate the cavity into a main exhaust cavity 111 and an air pressure balance cavity 112. The exhaust pipe 3 is connected to the exhaust hole 55 through the main exhaust cavity 111. In the initial stage of the exhaust position, most of the airflow discharged from the exhaust pipe 3 is discharged into the main exhaust cavity 111 through the opening on the weight 2, and only a very small part of the airflow overflows into the air pressure balance cavity 112 through the gap between the weight 2 and the exhaust pipe 3, so that the pressure in the air pressure balance cavity 112 is slightly greater than the external atmospheric pressure. With the help of the characteristic of the airflow flowing from high pressure to low pressure, the subsequent The hot air flow discharged from the exhaust pipe 3 can be directly discharged into the main exhaust chamber 111 and discharged through the exhaust hole. In addition, at the exhaust position, the seal 4 is sealed with the weight 2, so as to prevent the air flow with a reflux tendency due to the obstruction of the exhaust cover 5 from flowing back into the air pressure balance chamber 112, thereby preventing the air flow from flowing back to the inside of the pot cover 1, forming an effective protection for the components in the pot cover 1, and extending the service life of the components in the pot cover 1. Especially for cooking utensils with electronic components inside the pot cover 1, the method of preventing the backflow of hot air flow in the present application can prevent the electronic components inside the pot cover 1 from being in a humid and warm environment, which affects the normal operation and service life of the electronic components. Compared with the technical solution in the prior art that prevents backflow of airflow by placing the seal 4 on the outside of the exhaust pipe 3, the seal 4 in the present application is located on the outside of the weight 2. When it is necessary to drive the weight 2 to switch from the sealing position to the exhaust position through the push rod 8, the push rod 8 does not need to indirectly push the weight 2 to move by pushing the seal 4, but can directly drive the weight 2 to move, thereby avoiding the phenomenon of seal failure caused by repeated pushing of the seal 4 and improving the service life of the seal 4.

[0056] As a preferred embodiment of the present application, the sealing member 4 includes a sealing body 41 and a sealing lip 42 fixedly connected to the sealing body 41 .

[0057] In the exhaust position, the weight 2 is in sealing engagement with the sealing lip 42 .

[0058] In the sealed position, the cooking appliance has an unpressed state and a pressed state.

[0059] like Figure 1 and Figure 2 As shown, in the non-pressed state, there is a gap between the sealing lip 42 and the weight 2. There is a certain movement distance between the weight 2 and its target exhaust position. More preferably, the movement distance is less than or equal to 3 mm, thereby ensuring that when the cooking appliance needs to open the lid to perform the deodorizing function or the fat draining function in the intermediate cooking stage before the pressure is released, the weight 2 can also move upward to reach the exhaust position (i.e., the position sealed with the sealing lip 42) to ensure the realization of the corresponding function. In addition, in the non-pressed state, the configuration of the gap and distance between the sealing lip 42 and the weight 2 ensures that when the seal 4 has the possibility of detachable installation, during the assembly process of the seal 4, the weight 2 will not interfere with the seal and generate installation resistance, thereby facilitating the assembly of the seal 4 and avoiding the risk of deformation or even failure of the seal 4 due to assembly interference.

[0060] like Figure 3 and Figure 4 As shown, the pot lid 1 includes a pressure-bearing cover 13, and the exhaust pipe 3 is disposed on the pressure-bearing cover 13. In the upward pressure state, the weight 2 floats upward with the pressure-bearing cover 13 to seal with the sealing lip 42. For some cooking utensils with a grease draining function, the sealing lip 42 and the weight 2 in the upward pressure state can ensure the sealing performance between the pot lid 1 and the pot body, thereby ensuring the grease draining effect.

[0061] Since the center of the pot cover 1 is a plane-like structure with a bend on the outside, when the pressure in the pot reaches a certain value, the middle of the pot cover 1 will deform upward, and the deformation will be smaller as it approaches the edge. During the upward pressure process, the heavy hammer 2 will move upward toward the edge of the pot cover 1 under the action of the pressure in the pot. Therefore, under the upward pressure state, if the various parts of the sealing member 4 are coaxially arranged, the heavy hammer 2 will deviate during the upward movement process, resulting in a loose seal between the sealing member 4 and the heavy hammer 2 and air leakage. Therefore, as a preferred embodiment under this embodiment, the central axis of the sealing lip 42 is staggered with the central axis of the sealing body 41, and the distance between the central axis of the sealing lip 42 and the central axis of the pot cover 1 is greater than the distance between the central axis of the sealing body 41 and the central axis of the pot cover 1, that is, the sealing lip 42 is eccentrically designed compared with the sealing body 41, and the position of the central axis of the sealing lip 42 is closer to the edge of the pot cover 1 than the central axis of the pot cover 1. By limiting the eccentricity, the weight 2 can always maintain a sealed state with various parts of the sealing lip 42 during the pressing process, thereby ensuring the sealing performance of the pot cover 1.

[0062] As a preferred example under this embodiment, Figure 2 、 Figure 4 and Figure 6 As shown, the sealing lip 42 has a fixed end fixedly connected to the sealing body 41, and a free end away from the fixed end. The inner diameter of the sealing lip 42 gradually decreases from the fixed end to the free end, that is, the sealing lip 42 is a necked structure. According to the composition and decomposition of the forces, the necked structure of the sealing lip 42 enables the sealing lip 42 to achieve sealing cooperation with the weight 2 during the pressing process and the movement of the weight 2 from the sealing position to the exhaust position, and also enables the weight 2 to encounter less resistance when moving along the through hole of the seal 4, thereby ensuring the smooth movement of the weight 2.

[0063] As a preferred embodiment of this embodiment, Figure 2 、 Figure 4 and Figure 6 As shown, the sealing body 41 includes a positioning portion and a pleated portion 43 connecting the positioning portion and the sealing lip 42. The positioning portion and the pleated portion 43 are coaxially arranged. The provision of the pleated portion 43 can increase the elastic deformation of the entire sealing member 4, so that the weight 2 can maintain a sealed state with the sealing lip 42 both in the upward pressure state and in the exhaust position during the upward movement of the weight 2.

[0064] The present application does not limit the fixing position of the sealing member 4, and it may adopt any one of the following embodiments:

[0065] Embodiment 1: The pot cover 1 includes an upper cover 12, the exhaust cover 5 and the seal 4 are both fixed to the upper cover 12, and a receiving chamber 56 for receiving the seal 4 is formed in the exhaust cover 5. In the exhaust position, the receiving chamber 56 is divided into an upper chamber and a lower chamber by the seal. The upper chamber constitutes the main exhaust chamber 111, and the lower chamber constitutes a part of the air pressure balance chamber 112.

[0066] By providing an accommodating cavity 56 for accommodating the seal 4 in the exhaust cover 5, on the one hand, sufficient space is provided for the deformation of the seal 4. On the other hand, when the movement stroke of the weight 2 when moving from the sealing position to the exhaust position is constant, the structure of the cavity is formed by a part of the upper cover 12 and a part of the exhaust cover 5, which greatly reduces the volume of the cavity at the upper cover 12. In the embodiment where the cavity at the upper cover 12 is formed by the concave part of the upper cover 12, the reduction in the volume of the cavity at the upper cover 12 can reduce the degree of concave part of the upper cover 12, thereby avoiding interference between the concave part of the upper cover 12 and other components in the pot cover, and to a certain extent can reduce the overall thickness of the pot cover assembly, thereby achieving lightness and thinness.

[0067] Implementation method 2: Figure 7 As shown, the seal 4 is fixed to the exhaust cover 5, and the exhaust cover 5 is detachably mounted on the pot lid 1, so that the seal 4 can be removed from the pot lid 1 simultaneously with the exhaust cover 5, making it convenient for the user to clean the seal 4, preventing the seal 4 from accumulating dirt and grime, and providing a pleasant user experience. Preferably, as in the first embodiment described above, a receiving chamber 56 for accommodating the seal 4 is formed within the exhaust cover 5. In the exhaust position, the receiving chamber 56 is divided by the seal 4 into an upper chamber and a lower chamber. The upper chamber constitutes the main exhaust chamber 111, and the lower chamber constitutes a portion of the air pressure balance chamber 112.

[0068] Furthermore, as a preferred embodiment under the second embodiment, the seal 4 is detachably mounted on the exhaust cover 5, thereby facilitating both the assembly of the seal 4 and the replacement of the seal 4 to ensure its sealing effect. This application does not specifically limit the manner in which the seal 4 is detachably connected to the exhaust cover 5: as a specific example, Figure 7 As shown, the exhaust cover 5 includes a cover body and a pressure plate 53, the seal 4 is clamped and fixed between the cover body and the pressure plate 53, and the pressure plate 53 is detachably connected to the cover body, and the detachable connection between the pressure plate 53 and the cover body is not limited, and it can be fixed to the cover body by a detachable connection method such as screw connection, threaded connection, clamping or magnetic attraction.

[0069] In order to prevent the seal 4 from shifting in position on the cover body before assembling the pressure plate 53 or from falling off from the exhaust cover 5 when cleaning the exhaust cover 5 equipped with the seal 4 when the pressure plate 53 is not assembled tightly, one of the cover body and the seal 4 is provided with a limiting column 522, and the other is provided with a limiting hole 44 adapted to the limiting column 522, so as to achieve rough positioning of the seal 4 on the exhaust cover 5 and prevent it from shifting or falling off.

[0070] The present application does not limit the installation of the pot cover 1 and the exhaust cover 5. They can be connected by threaded connection, screw connection, snap connection or magnetic attraction, or other methods that facilitate the disassembly and assembly of the two. As a preferred embodiment of the present application, the pot cover 1 is provided with a mounting groove adapted to the exhaust cover 5, and the inner side wall of the mounting groove and / or the outer side wall of the exhaust cover 5 are provided with damping ribs. The provision of the damping ribs can not only improve the tight fit between the mounting groove and the exhaust cover 5 and prevent the exhaust cover 5 from falling out, but also increase the feel during the installation of the exhaust cover 5 and enhance the user experience.

[0071] In order to facilitate the processing and manufacturing of the exhaust cover 5, Figures 7 to 11 As shown, the cover body includes an exhaust upper cover 51 and an exhaust lower cover 52, and both the exhaust upper cover 51 and the exhaust lower cover 52 are provided with the exhaust hole 55. A sealing ring 54 is provided between the exhaust upper cover 51 and the exhaust lower cover 52, so that the airflow is discharged through the exhaust hole 55 when passing through the exhaust cover 5, rather than being discharged from the joint position of the exhaust upper cover 51 and the exhaust lower cover 52. The exhaust lower cover 52 has an accommodating space for the seal 4 to expand and contract. The present application does not limit the connection method of the exhaust upper cover 51 and the exhaust lower cover 52. As a preferred embodiment of the present application, one of the exhaust upper cover 51 and the exhaust lower cover 52 is provided with a latching protrusion, and the other one is provided with a latching position adapted to the latching protrusion. The exhaust upper cover 51 is rotatably engaged with the latching position 521 through the latching protrusion and the latching position, as shown Figures 9 to 11 As shown, a specific example is given in which the latching protrusion 511 is provided on the exhaust upper cover 51 and the latching position 521 is provided on the exhaust lower cover 52. Furthermore, the latching protrusion 511 is provided with a guiding inclined surface 512 for facilitating rotation and latching into the latching position 521.

[0072] The pot cover 1 in the present application is further provided with a handle 7 and a push rod 8, the push rod 8 being pivotally connected to the pot cover 1, the handle 7 being provided with a pressing portion 71 for driving the push rod 8, one end of the push rod 8 being located below the pressing portion 71 so as to be driven to rotate by the pressing portion 71, and the other end of the push rod 8 extending into the cavity 11 and driving the weight 2 to move upward to achieve switching from the sealing position to the exhaust position. Specifically, as Figure 12As shown, the pot lid 1 is provided with a rotating base 6, to which the handle 7 is mounted. The rotating base 6 is further provided with a pivoting mounting position for mounting the push rod 8, which is rotatably connected to the pivoting mounting position via a rotating shaft. When the cooking vessel requires decompression and exhaust, the pressing portion 71 on the handle 7 is pressed, thereby driving one end of the push rod 8 downward and the other end upward to drive the weight 2 to switch to the exhaust position, opening the exhaust pipe 3 and achieving exhaust.

[0073] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0074] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of the claims of the present application.

Claims

1. A cooking appliance comprising a pot lid and a pressure-limiting valve assembly disposed on the pot lid, the pressure-limiting valve assembly comprising an exhaust pipe and a weight, the pot lid being provided with a cavity for accommodating the weight and an exhaust cover covering the cavity, the exhaust cover being provided with an exhaust hole, the weight being movably disposed on the exhaust pipe so as to move along the cavity to switch between a sealing position for sealing the exhaust pipe and a venting position for releasing the seal, wherein: It also includes a sealing member, which has a through hole for the weight to move up and down. At the exhaust position, the sealing member and the weight are sealed to separate the cavity into a main exhaust chamber and an air pressure balance chamber. The exhaust pipe is connected to the exhaust hole through the main exhaust chamber.

2. The cooking utensil according to claim 1, characterized in that: The pot cover includes a pressure-bearing cover, the exhaust pipe is arranged on the pressure-bearing cover, and the sealing component includes a sealing body and a sealing lip fixedly connected to the sealing body. When the cooking utensil is in an upward pressure state, the heavy hammer floats upward with the pressure-bearing cover to seal with the sealing lip.

3. The cooking utensil according to claim 1, characterized in that: The sealing member comprises a sealing body and a sealing lip fixedly connected to the sealing body. When the cooking utensil is in a non-pressed state, a gap is provided between the sealing lip and the weight.

4. A cooking utensil according to claim 2 or 3, characterized in that: The central axis of the sealing lip is staggered with the central axis of the sealing body, and the distance between the central axis of the sealing lip and the central axis of the pot cover is greater than the distance between the central axis of the sealing body and the central axis of the pot cover.

5. A cooking utensil according to claim 2 or 3, characterized in that: The sealing lip has a fixed end fixedly connected to the sealing body and a free end away from the fixed end. The inner diameter of the sealing lip gradually decreases from the fixed end to the free end.

6. The cooking utensil according to any one of claims 1 to 3, characterized in that: The seal is fixed to the exhaust cover, and the exhaust cover is detachably mounted on the pot cover. A receiving chamber for receiving the seal is formed in the exhaust cover. In the exhaust position, the receiving chamber is divided into an upper chamber and a lower chamber by the seal. The upper chamber constitutes the main exhaust chamber, and the lower chamber constitutes a part of the air pressure balance chamber.

7. The cooking utensil according to claim 6, characterized in that: The exhaust cover comprises a cover body and a pressing plate, the sealing member is clamped and fixed between the cover body and the pressing plate, and the pressing plate is detachably connected to the cover body.

8. The cooking utensil according to claim 6, characterized in that: The pot cover is provided with a mounting groove adapted to the exhaust cover, and the inner side wall of the mounting groove and / or the outer side wall of the exhaust cover are provided with damping ribs.

9. The cooking utensil according to any one of claims 1 to 3, characterized in that: The pot cover includes an upper cover, the exhaust cover and the sealing member are both fixed to the upper cover, a receiving chamber for receiving the sealing member is formed in the exhaust cover, and in the exhaust position, the receiving chamber is divided into an upper chamber and a lower chamber by the sealing member, the upper chamber constitutes the main exhaust chamber, and the lower chamber constitutes a part of the air pressure balance chamber.

10. The cooking utensil according to claim 1, characterized in that: The pot lid is also provided with a handle and a push rod, the push rod is pivotally connected to the pot lid, the handle is provided with a pressing portion for driving the push rod, one end of the push rod is located below the pressing portion so as to be driven to rotate by the pressing portion, and the other end of the push rod extends into the cavity and drives the weight to move upward to achieve switching from the sealing position to the exhaust position.

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