Lid and cooking utensil

Abstract

The utility model relates to a lid and cooking utensil, lid includes: lid body, is equipped with the first avoidance hole on the lid body, handle, is located the outside of lid body, handle includes handle part and micro -pressure valve, including valve body and valve core, is equipped with the air outlet hole on the valve body, is equipped with the steam channel with the air outlet hole intercommunication on the valve core, the valve body is located the first avoidance hole, and the clearance L1 between the outer peripheral wall of air outlet hole and the outer peripheral wall of handle part has, and satisfies: 25mm=L1=40mm. The steam in the cooking cavity can be discharged through the first avoidance hole, steam channel and air outlet hole, L1 satisfies the above range, prevents the clearance between the outer peripheral wall of handle part and the outer peripheral wall of air outlet hole too small to cause the user to hold handle part when being scalded by the high temperature steam discharged from air outlet hole easily, thereby can improve the use safety, prevents the clearance between the outer peripheral wall of handle part and the outer peripheral wall of air outlet hole too big to cause the overall volume of lid too big simultaneously, thereby can be convenient for use and storage.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a lid and a cooking utensil. Background Technology

[0002] Cooking appliances, such as electric slow cookers, include a pot body, a cooking cavity, an inner pot located within the cooking cavity, and a lid for covering the cooking cavity. To maintain a low-pressure state within the cooking cavity, existing technologies include a low-pressure valve on the lid. This valve is sealed to the lid and contains a movable floating element. When the pressure is low, the floating element seals the vent, maintaining a low-pressure state within the cooking cavity. When the pressure is high and exceeds the resistance of the floating element's upward movement, the sealing element is lifted, releasing the pressure within the cooking cavity.

[0003] The existing lid can easily cause burns when removed from the cooking cavity due to the vent hole of the micro-pressure valve. Utility Model Content

[0004] Therefore, it is necessary to provide a lid and cooking utensil to address the above problems, which can reduce the possibility of burns.

[0005] This utility model provides a cover, comprising: a cover body having a first clearance hole; and a handle located on the outside of the cover body, the handle including a handle portion and a micro-pressure valve including a valve body and a valve core, the valve body having an air outlet, the valve core having a steam passage communicating with the air outlet, the valve body being located in the first clearance hole, and a gap L1 between the outer peripheral wall of the air outlet and the outer peripheral wall of the handle portion, satisfying: 25mm≤L1≤40mm.

[0006] In the aforementioned micro-pressure valve, the user can grasp the handle to pick up or place the lid. During cooking, the steam in the cooking chamber can be discharged through the first clearance hole, steam channel, and vent, preventing excessive pressure in the cooking chamber or the entire cooking chamber from being in a sealed state, which could cause safety hazards. L1 meets the above requirements, preventing the gap between the outer peripheral wall of the handle and the outer peripheral wall of the vent from being too small, which could cause the user to be easily burned by the high-temperature steam discharged from the vent when grasping the handle, thereby improving the safety of use. At the same time, it prevents the gap between the outer peripheral wall of the handle and the outer peripheral wall of the vent from being too large, which could cause the overall volume of the lid to be too large, thus making it easy to use and store.

[0007] In one embodiment, the top of the valve body and the top of the handle have a height difference H1, and satisfy 15mm≤H1≤35mm.

[0008] This design allows sufficient space for the steam vented from the vent to diffuse around, preventing a single stream of air from flowing towards the handle and causing burns when the user grips it, thus further improving safety. At the same time, it prevents the handle from being too tall, which would result in an excessively large overall size of the lid, making it easier to use and store.

[0009] In one embodiment, the handle includes a handle portion and an extension portion, the extension portion extending to the first clearance hole and having a second clearance hole corresponding to the first clearance hole, the handle portion and the extension portion being integrally formed; and / or the handle includes a handle portion and an extension portion, the micro-pressure valve and the handle portion being located at both ends of the extension portion, the width of the handle portion being greater than the width of the extension portion; and / or along the height direction of the handle portion, the cross-sectional area of ​​the handle portion gradually decreases from top to bottom.

[0010] This design ensures a reliable connection between the handle, the cover, and the micro-pressure valve, and ensures accurate relative positioning between the outer peripheral wall of the vent and the outer peripheral wall of the handle. Setting the width of the handle to be greater than the width of the extension prevents users from getting burned when their fingers touch the extension while gripping the handle, making it easier for users to grip and improving safety. The cross-sectional area of ​​the handle gradually decreases from top to bottom, making it easier for users to grip the handle, reducing the possibility of the cover slipping off, and improving safety.

[0011] In one embodiment, the valve body includes an upper valve body and a lower valve body. The upper valve body is provided with the air outlet and a fixing part. The lower valve body is provided with an air inlet and a mating part. The extension part is stacked with the cover, and the upper valve body and the lower valve body sandwich the cover and the extension part. One of the fixing part or the mating part passes through the second clearance hole and is fixedly connected to the other, forming the steam passage between the fixing part and the inner wall of the second clearance hole.

[0012] With this design, when a single stream of air enters the steam channel, it can be partially blocked and dispersed into a ring-shaped airflow, allowing the airflow passing through the steam channel to be relatively dispersed and overflowed, and evenly discharged from the vent, reducing the impact of the airflow; the inlet and outlet can act as a straightener, reducing the turbulence of steam entering the steam channel from the cooking chamber and being discharged to the outside from the outlet, allowing the steam to flow smoothly and reducing the impact on the valve core; the extension part cooperates with the fixing part or mating part as the valve core, which can simplify the overall structure of the cover, reduce the number of parts, facilitate processing and assembly, and reduce costs.

[0013] In one embodiment, the upper valve body includes a top cover and a first sidewall connected to the top cover, the first sidewall abutting against the extension, the top cover including a central region and an edge region located around the central region, the fixing part being disposed in the central region, the vent being disposed in the edge region, and the area where the orthographic projection of the steam passage on the top cover is located within the central region.

[0014] This configuration ensures that the steam channel and the air outlet are completely misaligned, preventing a single stream of air from overflowing directly from the air outlet, reducing the impact of the airflow, and improving the steam dispersion effect; ensuring that the steam channel and the air inlet are completely misaligned extends the air intake path, which is beneficial for achieving a micro-pressure effect.

[0015] In one embodiment, the extension is provided with a first ring rib, which is located on the side away from the upper valve body and abuts against the outer wall surface of the cover.

[0016] With this configuration, the extension is sealed to the outer wall of the cover through the first ring rib, reducing the possibility of steam leakage through the gap between the extension and the cover, improving the stability of the micro-pressure effect, and reducing the requirements for the processing and assembly precision of the extension and the cover.

[0017] In one embodiment, the extension is provided with a second ring rib, which is located on the side away from the upper valve body and passes through the first clearance hole to abut against the lower valve body.

[0018] With this configuration, a seal can be achieved between the second ring rib and the lower valve body. Furthermore, the second ring rib, in conjunction with the first ring rib, can extend the steam leakage path and improve the sealing effect. At the same time, the second ring rib can also support the lower valve body, reducing swaying and displacement.

[0019] In one embodiment, the extension is provided with either a limiting groove or a limiting rib, and the upper valve body is provided with the other one, with the limiting rib being engaged in the limiting groove.

[0020] This design, with the locking ribs and locking grooves engaging, ensures that the upper valve body and the extension maintain the correct relative position, serving as a pre-positioning function to facilitate assembly.

[0021] In one embodiment, the outer peripheral wall of the micro-pressure valve is textured; and / or the cross-sectional area S of the steam passage satisfies: 10 mm². 2 ≤S≤125mm 2 ; and / or the number of the air outlets is multiple, and the multiple air outlets are arranged in a spiral around the central axis of the micro-pressure valve.

[0022] This design allows users to easily grip the upper valve body when disassembling, replacing, or cleaning the micro-pressure valve, preventing it from slipping. S meets the aforementioned range, enabling the formation and maintenance of micro-pressure within the cooking chamber, improving cooking performance. Simultaneously, it ensures that steam within the cooking chamber can be properly discharged through the steam channel, preventing excessive pressure within the cooking chamber due to an insufficiently small cross-sectional area S, or a completely sealed cooking chamber, which could damage or cause the micro-pressure valve to malfunction. Furthermore, the steam channel formed between the blocking part and the inner wall of the second clearance hole increases the cross-sectional size of the second clearance hole, simplifying the manufacturing process. Multiple vents arranged spirally around the central axis of the micro-pressure valve ensures the cross-sectional area of ​​the vents without increasing the diameter of the micro-pressure valve.

[0023] This utility model also provides a cooking utensil, including the aforementioned lid. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the lid according to the first embodiment of the present utility model; Figure 2 for Figure 1 A cross-sectional view of the lid; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 1 A three-dimensional structural diagram of the medium-pressure valve and handle; Figure 5 for Figure 4 A three-dimensional structural diagram of the center handle from another perspective; Figure 6 for Figure 4 Top view of the middle extension; Figure 7 for Figure 4 A three-dimensional structural diagram of the upper and middle valve body from another perspective; Figure 8 for Figure 4 A sectional view of the upper and middle valve body; Figure 9 for Figure 4 Cross-sectional view of the lower valve body; Figure 10 This is a cross-sectional view of the lid according to the second embodiment of the present invention; Figure 11 for Figure 10 Enlarged view of point B in the middle; Figure 12 This is a cross-sectional view of the lid according to the third embodiment of the present utility model; Figure 13 for Figure 12 Enlarged view of point C in the middle; Figure 14 This is a cross-sectional view of a cooking appliance according to one embodiment of the present invention.

[0026] Reference numerals: 10. Micro-pressure valve; 11. Upper valve body; 111. Air outlet; 112. Fixing part; 113. Top cover; 1131. Central area; 1132. Edge area; 114. First side wall; 115. Limiting groove; 116. Texture; 12. Lower valve body; 121. Air inlet; 122. Fitting part; 1221. Groove; 123. Bottom cover; 124. Second side wall; 125. Valve core Structure; 1251, Third clearance hole; 13, Steam passage; 14, First cavity; 15, Second cavity; 20, Cover; 21, First clearance hole; 22, Glass cover; 221, Assembly hole; 23, Top cover; 30, Handle; 31, Handle part; 32, Extension part; 321, Second clearance hole; 322, First ring rib; 323, Second ring rib; 324, Limiting rib; 200, Pot body; 300, Inner pot. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0032] Cooking appliances, such as electric slow cookers, include a pot body, a cooking cavity, an inner pot located within the cooking cavity, and a lid for covering the cooking cavity. To maintain a low-pressure state within the cooking cavity, existing technology incorporates a low-pressure valve on the lid. This valve is sealed to the lid and contains a movable floating element. When the pressure is low, the floating element seals the vent hole, maintaining a low-pressure state within the cooking cavity. When the pressure is high and exceeds the resistance of the floating element's upward movement, the sealing element is lifted, releasing the pressure within the cooking cavity. However, with existing lids, removing them from the cooking cavity can easily cause burns due to the vent hole of the low-pressure valve.

[0033] To solve the above problems, such as Figures 1 to 14 As shown, this utility model provides a lid and a cooking utensil that can reduce the possibility of burns.

[0034] like Figures 1 to 3As shown, specifically, the lid includes a lid body 20, a handle 30, and a micro-pressure valve 10, wherein: the lid body 20 is provided with a first clearance hole 21; the handle 30 is located on the outside of the lid body 20, and the handle 30 includes a handle portion 31; the micro-pressure valve 10 includes a valve body and a valve core, the valve body is provided with a vent hole 111, and the valve core is provided with a steam passage 13 communicating with the vent hole 111. The valve body is located in the first clearance hole 21, and there is a gap L1 between the outer peripheral wall of the vent hole 111 and the outer peripheral wall of the handle portion 31, which satisfies the condition: 25mm≤L1≤40mm. Here, L1 can be any value within the range of 25mm to 40mm, such as 25mm, 30mm, 35mm, or 40mm.

[0035] This lid can be used in cooking appliances with cooking cavities, such as electric slow cookers and electric stew pots, as well as other devices that require venting. For ease of description, the following explanation uses the example of a lid covering the cooking cavity of a cooking appliance.

[0036] In the lid provided in this embodiment of the utility model, the user can grasp the handle 31 to pick up or place the lid. During the cooking process, the steam in the cooking cavity can be discharged through the first clearance hole 21, the steam channel 13 and the vent 111, avoiding excessive pressure in the cooking cavity or the entire cooking cavity being in a sealed state, which could cause safety hazards. L1≥25mm prevents the gap between the outer peripheral wall of the handle 31 and the outer peripheral wall of the vent 111 from being too small, which could cause the user to be easily burned by the high-temperature steam discharged from the vent 111 when grasping the handle 31, thereby improving the safety of use. At the same time, L1≤40mm prevents the gap between the outer peripheral wall of the handle 31 and the outer peripheral wall of the vent 111 from being too large, which could cause the overall volume of the lid to be too large, thereby making it easy to use and store.

[0037] like Figure 2 As shown, in one embodiment, the top of the valve body and the top of the handle 31 have a height difference H1, satisfying 15mm ≤ H1 ≤ 35mm. H1 can be any value within the range of 15mm to 35mm, such as 15mm, 20mm, 25mm, 30mm, or 35mm. H1 ≥ 15mm allows sufficient space for steam discharged from the vent 111 to diffuse, preventing a single stream of air from flowing towards the handle 31 and causing burns to the user when gripping it, thus further improving safety. H1 ≤ 35mm prevents the handle 31 from being too tall, resulting in an excessively large overall volume of the cover, thus facilitating use and storage. Of course, in other embodiments, the height difference H1 between the top of the valve body and the top of the handle 31 can also be set to less than 15mm or greater than 35mm, depending on the size of the cover, the usage scenario, and other requirements.

[0038] like Figures 3 to 5As shown, in one embodiment, the handle 30 includes a handle portion 31 and an extension portion 32. The extension portion 32 extends to the first clearance hole 21 and has a second clearance hole 321 corresponding to the first clearance hole 21. The handle portion 31 and the extension portion 32 are integrally formed. Steam in the cooking chamber can be discharged through the first clearance hole 21, the second clearance hole 321, the steam passage 13, and the vent hole 111. Thus, the handle portion 31 and the extension portion 32 are integrally formed to ensure the reliability of the handle 30. Fixing the micro-pressure valve 10, the extension portion 32, and the cover 20 together ensures a reliable connection between the handle 30, the cover 20, and the micro-pressure valve 10, and ensures the accurate relative position between the outer peripheral wall of the vent hole 111 and the outer peripheral wall of the handle portion 31, thereby ensuring the overall reliability and safety of the cover. Of course, in other embodiments, the handle 31 and the extension 32 can also be separate structures and fixedly connected by fasteners such as screws and bolts, as long as the stability and reliability of the connection between the two are ensured. This utility model embodiment does not impose specific limitations here.

[0039] like Figures 4 to 5 As shown, in one embodiment, the micro-pressure valve 10 and the handle portion 31 are located at both ends of the extension portion 32, and the width of the handle portion 31 is greater than the width of the extension portion 32. This ensures the stability of the extension portion 32 on the cover 20. Since the extension portion 32 is in direct contact with the cover 20 and the micro-pressure valve 10, its temperature is relatively high. Therefore, setting the width of the handle portion 31 to be greater than the width of the extension portion 32 prevents the user's fingers from touching the extension portion 32 and being burned when gripping the handle portion 31, thus improving user grip and further enhancing safety. Of course, in other embodiments, the width of the handle portion 31 can also be set to be equal to or less than the width of the extension portion 32, depending on the size of the cover and the usage environment.

[0040] like Figures 4 to 5 As shown, in one embodiment, the cross-sectional area of ​​the handle portion 31 gradually decreases from top to bottom along its height direction. This makes it easier for the user to grip the handle portion 31, reducing the possibility of the cover slipping off and thus further improving safety. Specifically, the handle portion 31 is generally cylindrical, and its diameter gradually decreases from top to bottom. Furthermore, the outer peripheral wall of the handle portion 31 may also be provided with protrusions, grooves, ribs, threads, or other structures that increase friction to ensure that the user can grip the handle portion 31 firmly.

[0041] like Figure 3As shown, in one embodiment, the valve body includes an upper valve body 11 and a lower valve body 12. The upper valve body 11 is provided with an air outlet 111 and a fixing part 112. The lower valve body 12 is provided with an air inlet 121 and a mating part 122. The extension part 32 is stacked with the cover 20. The upper valve body 11 and the lower valve body 12 sandwich the cover 20 and the extension part 32. One of the fixing part 112 or the mating part 122 passes through the second clearance hole 321 and is fixedly connected to the other, and a steam channel 13 is formed between the fixing part 112 and the inner wall of the second clearance hole 321. Gas inside the cooking chamber can be discharged sequentially through the air inlet 121, steam channel 13, and air outlet 111. When a single stream of air enters the steam channel 13, it is partially blocked and dispersed into an annular airflow, allowing the airflow through the steam channel 13 to be relatively dispersed and discharged evenly from the air outlet 111, thereby reducing the impact of the airflow. The air inlet 121 and air outlet 111 also have a rectifying effect, reducing the turbulence of steam entering the steam channel 13 from the cooking chamber and being discharged to the outside from the air outlet 111, allowing the steam to flow smoothly and reducing the impact on the valve core. This protects the micro-pressure valve 10, prevents damage or failure of the micro-pressure valve 10, and extends its service life. The cover clamps the cover body 20 and the extension 32 between the upper valve body 11 and the lower valve body 12, fixing the micro-pressure valve 10, handle 30, and cover body 20 relatively and ensuring sealing, reducing the possibility of steam leakage from the gap between the micro-pressure valve 10, handle 30, and cover body 20. Furthermore, the extension 32, in conjunction with the fixing part 112 or the mating part 122, serves as a valve core, which simplifies the overall structure of the cover, reduces the number of parts, facilitates processing and assembly, and lowers costs.

[0042] Furthermore, to ensure the heat insulation effect of the handle 30, the handle 30 is usually made of plastic, while the cover 20 is usually made of glass so that the user can clearly observe the cooking situation inside the cooking cavity through the cover 20. Therefore, it is more convenient to process the second clearance hole 321 on the handle 30, so that the second clearance hole 321 with a relatively large cross-sectional size can be processed on the extension 32 of the handle 30, and the first clearance hole 21 with a larger cross-sectional size can be processed on the cover 20, making the processing technology simpler.

[0043] Of course, in other embodiments, the valve body may only include an upper valve body 11, with a first cavity 14 formed between the valve core and the upper valve body 11, and the upper valve body 11 having a vent 111. Gas in the cooking chamber can be discharged sequentially through the steam channel 13, the first cavity 14, and the vent 111. Alternatively, the valve body may only include a lower valve body 12, with a second cavity 15 formed between the valve core and the lower valve body 12, and the lower valve body 12 having an inlet 121, which in this case serves as the vent 111 of the valve body. Gas in the cooking chamber can be discharged sequentially through the inlet 121, the second cavity 15, and the steam channel 13. The individual first cavity 14 and second cavity 15 can also achieve uniform airflow and stable gas output.

[0044] like Figures 12 to 13 As shown, in another embodiment, one of the fixing part 112 or the mating part 122 may pass through the second clearance hole 321 and be fixedly connected to the other, and form a steam channel 13 between the fixing part 112 and the inner wall of the first clearance hole 21, that is, the cover 20 and the fixing part 112 or the mating part 122 cooperate as a valve core.

[0045] like Figures 10 to 11 As shown, in another embodiment, the valve core can also be fixed to the upper valve body 11 or the lower valve body 12, for example... Figure 11 The valve core structure 125 shown has a third clearance hole 1251. One of the fixing part 112 or the mating part 122 passes through the third clearance hole 1251 and is fixedly connected to the other, forming a steam passage 13 between the fixing part 112 and the inner wall of the third clearance hole 1251. In this way, the valve core can be installed as a whole after being fixed to the upper valve body 11 or the lower valve body 12, thereby reducing the number of parts and simplifying the assembly steps.

[0046] like Figure 2 As shown, the cross-sectional area S of the steam channel 13 satisfies: 10 mm² 2 ≤S≤125mm 2 Where S can be 10mm 2 20mm 2 30mm 2 40mm 2 50mm 2 60mm 2 70mm 2 80mm 2 90mm 2 100mm 2 110mm 2 120mm 2 125mm 2 Waiting at 10mm 2 Up to 125mm 2 Any value within the range. By limiting S ≤ 125mm2 This ensures that steam can accumulate within the cooking cavity to form and maintain a micro-pressure, thereby improving cooking performance. It also prevents the micro-pressure environment from failing to form within the cooking cavity due to an excessively large cross-sectional area S of the steam channel 13, or from becoming too large overall in volume for the micro-pressure valve 10; simultaneously, S is limited to ≥ 10 mm. 2 This ensures that steam in the cooking chamber can be properly discharged through the steam channel 13, preventing excessive pressure in the cooking chamber due to an excessively small cross-sectional area S of the steam channel 13, or the entire cooking chamber being in a sealed state, which could easily damage or cause the micro-pressure valve 10 to fail. This reduces safety hazards, improves the reliability of the micro-pressure valve 10, and extends its service life. When the cross-sectional area S of the steam channel 13 is within the aforementioned range, a micro-pressure environment of 0.4 kPa can be formed inside the cooking chamber when the cooking appliance is boiling, improving the cooking effect and cooking speed. Furthermore, because the cross-sectional area S of the steam channel 13 is small, compared to directly machining a small-flow-area exhaust hole on the valve core, the steam channel 13 formed between the blocking part and the inner wall of the second clearance hole 321 can increase the cross-sectional size of the second clearance hole 321 itself, making the processing technology simpler.

[0047] Preferably, the cross-sectional area S of the steam channel 13 satisfies: 10 mm 2 ≤S≤50mm 2 For example, 10mm 2 15mm 2 20mm 2 25mm 2 30mm 2 35mm 2 40mm 2 45mm 2 50mm 2 Waiting at 10mm 2 Up to 50mm 2 Any value within the range. Thus, when the cross-sectional area S of the steam channel 13 is within the aforementioned preferred range, a higher micro-pressure environment can be formed inside the cooking chamber when the cooking appliance is boiling, further improving the cooking effect and speed. For example, when S satisfies 30mm... 2 The cooking cavity can create a micro-pressure environment of 1.8 kPa.

[0048] Of course, in other embodiments, the cross-sectional area S of the steam channel 13 can also be set to less than 10 mm, depending on factors such as the overall volume of the cooking appliance and the required cooking pressure. 2 or greater than 125mm 2 .

[0049] like Figures 1 to 2As shown in the illustrated embodiment, the cover 20 includes a glass cover 22 and an upper cover 23. The glass cover 22 is disposed on the upper cover 23, and a first clearance hole 21 is disposed on the glass cover 22. The handle portion 31 is provided with a screw post, and the glass cover 22 is also provided with an assembly hole 221. The screw post of the handle portion 31 and the assembly hole 221 of the glass cover 22 are fixedly connected by fasteners to achieve a fixed connection between the handle 30 and the cover 20. The fasteners can be screws, bolts, etc. The handle portion 31 and the extension portion 32 can be an integral structure or a separate structure, and are fixedly connected by screws, adhesives, snap-fits, etc., to ensure the reliability of the handle 30. Of course, in other embodiments, the cover 20 can also be an integral structure, for example, the entire cover 20 can be made of glass, ceramic, stainless steel, or other high-temperature resistant materials; and the handle 30 can also be fixed to the cover 20 by snap-fits, adhesives, or other methods, as long as the stability and reliability of the connection between the two can be guaranteed. This embodiment of the present invention does not impose specific limitations here.

[0050] like Figure 3 , Figure 7 and Figure 8 As shown, the upper valve body 11 includes a top cover portion 113 and a first side wall portion 114 connected to the top cover portion 113. The first side wall portion 114 abuts against the extension portion 32. The top cover portion 113 includes a central region 1131 and an edge region 1132 located around the central region 1131. A fixing portion 112 is provided in the central region 1131, and a vent 111 is provided in the edge region 1132. The area where the orthographic projection of the steam passage 13 on the top cover portion 113 is located is within the central region 1131. Thus, after steam enters the upper valve body 11 from the steam passage 13 near the center, it can diffuse outward to the edge region 1132 and be discharged from the vent 111 located in the edge region 1132. Compared to the vent 111 located in the central region 1131, the discharged steam is more dispersed, avoiding steam accumulation, thereby optimizing the exhaust path and further preventing the user from being scalded by the steam discharged from the vent 111. The contact between the first sidewall portion 114 and the extension portion 32 ensures the stability of the upper valve body 11 and reduces its swaying. It also ensures a tight seal between the upper valve body 11 and the extension portion 32, reducing the possibility of steam overflowing through the gap between them. Furthermore, the top cover portion 113, the first sidewall portion 114, and the extension portion 32 form a second cavity 15. The second cavity 15 and the vent 111 act as a buffer and flow straightener, allowing steam to be smoothly discharged from the vent 111.

[0051] In the illustrated embodiment, there are multiple vent holes 111, which are arranged spirally around the central axis of the micro-pressure valve 10. This ensures that the cross-sectional area of ​​the vent holes 111 is maintained without increasing the diameter of the micro-pressure valve 10. Of course, in other embodiments, the multiple vent holes 111 can also be circular, elliptical, square, or other regular or irregular shapes, and arranged circumferentially at intervals along the central axis of the micro-pressure valve 10; alternatively, the multiple vent holes 111 can be linear and radiate outwards from the central axis of the micro-pressure valve 10.

[0052] like Figure 3 As shown, further, the area where the orthographic projection of the steam channel 13 on the top cover 113 is located is within the central region 1131. In this way, the steam channel 13 and the vent 111 are completely misaligned, that is, the vent 111 is located outside the area where the orthographic projection of the steam channel 13 on the top cover 113 is located. This further prevents a single stream of airflow from directly overflowing from the vent 111, reduces the impact of airflow, improves the steam dispersion effect, and also prevents condensate or external water vapor at the vent 111 from dripping directly onto the lower valve body 12 through the vent 111 and the steam channel 13.

[0053] Of course, in other embodiments, the area where the orthographic projection of the steam passage 13 on the top cover 113 is located may be partially located in the central region 1131 and partially located in the edge region 1132; or, the vent 111 may also be located in the central region 1131 as needed, as long as the normal operation of the micro-pressure valve 10 can be ensured. This embodiment of the present invention does not impose any specific limitations here.

[0054] like Figure 3 , Figure 8 and Figure 9As shown, in one embodiment, the lower valve body 12 includes a bottom cover 123 and a second sidewall 124 connected to the bottom cover 123. An air inlet 121 is formed in the bottom cover 123, and the area where the orthographic projection of the steam passage 13 onto the bottom cover 123 is located inside the projection area of ​​the air inlet 121 onto the bottom cover 123. Multiple air inlets 121 can be arranged at circumferential intervals along the lower valve body 12. This ensures that the steam passage 13 and the air inlets 121 are completely misaligned, extending the air intake path and facilitating a micro-pressure effect. The bottom cover 123, the second sidewall 124, and the cover 20 can form a first cavity 14. The first cavity 14 and the air inlets 121 can act as a buffer and rectifyer, allowing steam to flow smoothly into the steam passage 13. Furthermore, by defining the relative positions of the air inlet 121, the steam channel 13, and the air outlet 111, it is possible to prevent liquid or food in the cooking chamber from overflowing from the micro-pressure valve 10. Even if some liquid or food enters the first cavity 14 through the air inlet 121, it will preferentially flow back into the cooking chamber through the air inlet 121. At the same time, it is also possible to prevent condensate or external moisture in the micro-pressure valve 10 from flowing back into the cooking chamber through the air inlet 121. Of course, in other embodiments, the air inlet 121 can also be located in the area near the center of the lower valve body 12 as needed, as long as the normal operation of the micro-pressure valve 10 can be ensured. This embodiment of the present invention does not impose specific limitations here.

[0055] like Figures 3 to 5 As shown, the extension 32 is provided with a first annular rib 322, which is located on the side opposite to the upper valve body 11 and abuts against the outer wall surface of the cover 20. Thus, when the upper valve body 11 and the lower valve body 12 clamp the cover 20 and the extension 32, the extension 32 seals against the outer wall surface of the cover 20 through the first annular rib 322, reducing the possibility of steam leakage through the gap between the extension 32 and the cover 20, and improving the stability of the micro-pressure effect. Furthermore, because the first annular rib 322 has a small cross-sectional dimension, it is easy to process. Even if there are minor unevenness or deformation on the walls of the cover 20 and the extension 32, the first annular rib 322 can stably and reliably abut against the outer wall surface of the cover 20, thereby reducing the precision requirements for processing and assembly of the extension 32 and the cover 20.

[0056] like Figures 3 to 5As shown, the extension 32 is provided with a second annular rib 323, which is located on the side opposite to the upper valve body 11. The second annular rib 323 passes through the first clearance hole 21 and abuts against the lower valve body 12. The first annular rib 322 is located on the outer periphery of the second annular rib 323. Thus, when the upper valve body 11 and the lower valve body 12 clamp the cover 20 and the extension 32, a seal can also be achieved between the second annular rib 323 and the lower valve body 12. Furthermore, the cooperation between the second annular rib 323 and the first annular rib 322 extends the steam leakage path, further preventing steam leakage through the gap between the extension 32 and the cover 20, thus improving the sealing effect. Simultaneously, the second annular rib 323 also supports the lower valve body 12, reducing swaying and displacement, thereby improving the stability and reliability of the micro-pressure valve 10.

[0057] Of course, in other embodiments, while ensuring processing accuracy and sealing, the side of the extension 32 facing the cover 20 may be fitted with the outer wall surface of the cover 20; and a sealing element, such as a sealing ring or sealant, may be added between the extension 32 and the cover 20 to prevent steam leakage.

[0058] like Figures 6 to 7 As shown, the extension 32 is provided with either a limiting groove 115 or a limiting rib 324, and the upper valve body 11 is provided with the other one. The limiting rib 324 is engaged in the limiting groove 115. During assembly, the upper valve body 11 and the extension 32 can be engaged first through the limiting rib 324 and the limiting groove 115 to ensure that the upper valve body 11 and the extension 32 maintain the correct relative position, thus playing a pre-positioning role. Then, the fixing part 112 and the mating part 122 are fixed, so that the overall installation position of the micro-pressure valve 10 is accurate, which facilitates assembly. The number of limiting grooves 115 and limiting ribs 324 can be one, two, three, four or more. Multiple sets of limiting grooves 115 and limiting ribs 324 are arranged at intervals along the circumference of the upper valve body 11 to ensure the stability and reliability of the connection between the upper valve body 11 and the extension 32. In the illustrated embodiment, the upper valve body 11 has a circular cross-section, and there are two sets of limiting grooves 115 and limiting ribs 324. The two sets of limiting grooves 115 and limiting ribs 324 are arranged opposite to each other on both sides of the upper valve body 11 to facilitate user installation and alignment.

[0059] like Figure 7 As shown, in one embodiment, the outer peripheral wall of the micro-pressure valve 10 is provided with textured surfaces 116. Specifically, the outer peripheral wall of the upper valve body 11 is provided with textured surfaces. This facilitates the user's gripping of the upper valve body 11 when disassembling, replacing, or cleaning the micro-pressure valve 10, preventing the upper valve body 11 from slipping. The textured surfaces 116 on the outer peripheral wall of the upper valve body 11 can be threaded, or they can be protrusions, grooves, ribs, or other structures that increase friction, ensuring that the user can grip the upper valve body 11 firmly.

[0060] like Figure 3, Figure 8 and Figure 9 As shown, the fixing part 112 is a screw post, and the mating part 122 is a fixing hole. The fixing part 112 and the mating part 122 are fixedly connected by fasteners. The fasteners can be screws, bolts, etc. Thus, the fastener passes through the fixing hole from the end of the lower valve body 12 away from the upper valve body 11 and is fixed to the screw post through threaded engagement, avoiding exposed fasteners and improving the aesthetics of the micro-pressure valve 10. The fasteners securing the upper valve body 11 and lower valve body 12 ensure the stability and reliability of their connection. The fasteners tighten the two together, improving the sealing between the upper valve body 11 and lower valve body 12, preventing steam leakage. Furthermore, the detachable connection of the upper valve body 11 and lower valve body 12 facilitates machining and assembly, as well as later maintenance and cleaning. Specifically, the mating part 122 has a groove 1221 at one end facing the upper valve body 11. The end of the screw post is inserted into the groove 1221 to prevent relative displacement between the upper valve body 11 and the lower valve body 12. At the same time, it can also pre-position the upper valve body 11 and the lower valve body 12 to facilitate user assembly.

[0061] In another embodiment, the mating part 122 can be a screw post, and the fixing part 112 can be a fixing hole. The fastener passes through the fixing hole from the end of the upper valve body 11 away from the lower valve body 12 and is fixed with the screw post by thread engagement. Of course, in other embodiments, the fixing part 112 and the mating part 122 can also be fixedly connected by other methods such as snap-fit, plug-in, or adhesive, as long as the stability and reliability of the connection between the two can be guaranteed. This embodiment of the present invention does not impose specific limitations here.

[0062] like Figure 14 As shown in the illustration, this utility model embodiment also provides a cooking appliance, including the aforementioned lid. In the illustrated embodiment, the cooking appliance further includes a pot body 200 and an inner pot 300. The pot body 200 has a cooking cavity, the inner pot 300 is disposed within the cooking cavity, and the lid covers the cooking cavity. This cooking appliance can create a micro-pressure environment within the cooking cavity to improve cooking efficiency and food texture, thereby enhancing the cooking effect. The cooking appliance can be an electric slow cooker, electric stew pot, or other equipment that requires a micro-pressure environment.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A lid, characterized in that, include: Cover (20), the cover (20) is provided with a first clearance hole (21); A handle (30) is provided on the outside of the cover (20), the handle (30) including a handle portion (31) and The micro-pressure valve (10) includes a valve body and a valve core. The valve body is provided with an air outlet (111), and the valve core is provided with a steam passage (13) communicating with the air outlet (111). The valve body is located in the first clearance hole (21). There is a gap L1 between the outer peripheral wall of the air outlet (111) and the outer peripheral wall of the handle (31), and the gap L1 satisfies: 25mm≤L1≤40mm.

2. The lid according to claim 1, characterized in that, The top of the valve body and the top of the handle (31) have a height difference H1, and satisfy 15mm≤H1≤35mm.

3. The lid according to claim 1, characterized in that, The handle (30) includes a handle portion (31) and an extension portion (32), the extension portion (32) extends to the first clearance hole (21) and is provided with a second clearance hole (321) corresponding to the first clearance hole (21), the handle portion (31) and the extension portion (32) are integrally formed; and / or The handle (30) includes a handle portion (31) and an extension portion (32), the micro-pressure valve (10) and the handle portion (31) are located at both ends of the extension portion (32), and the width of the handle portion (31) is greater than the width of the extension portion (32); and / or Along the height direction of the handle portion (31), the cross-sectional area of ​​the handle portion (31) gradually decreases from top to bottom.

4. The lid according to claim 1, characterized in that, The valve body includes an upper valve body (11) and a lower valve body (12). The upper valve body (11) is provided with an air outlet (111) and a fixing part (112). The lower valve body (12) is provided with an air inlet (121) and a mating part (122). The handle (30) includes the handle portion (31) and the extension portion (32). The extension portion (32) extends to the first clearance hole (21) and is provided with a second clearance hole (321) corresponding to the first clearance hole (21). The extension portion (32) is stacked with the cover body (20). The upper valve body (11) and the lower valve body (12) sandwich the cover body (20) and the extension portion (32). One of the fixing portion (112) or the mating portion (122) passes through the second clearance hole (321) and is fixedly connected to the other, and forms the steam passage (13) between the fixing portion (112) and the inner wall of the second clearance hole (321).

5. The lid according to claim 4, characterized in that, The upper valve body (11) includes a top cover (113) and a first side wall (114) connected to the top cover (113). The first side wall (114) abuts against the extension (32). The top cover (113) includes a central region (1131) and an edge region (1132) located around the central region (1131). The fixing part (112) is located in the central region (1131). The air outlet (111) is located in the edge region (1132). The area where the orthographic projection of the steam passage (13) on the top cover (113) is located is within the central region (1131).

6. The lid according to claim 4, characterized in that, The extension (32) is provided with a first ring rib (322), which is located on the side away from the upper valve body (11) and abuts against the outer wall surface of the cover (20).

7. The lid according to claim 4, characterized in that, The extension (32) is provided with a second ring rib (323), which is located on the side away from the upper valve body (11). The second ring rib (323) passes through the first clearance hole (21) and abuts against the lower valve body (12).

8. The lid according to claim 4, characterized in that, The extension (32) is provided with either a limiting groove (115) or a limiting rib (324), and the upper valve body (11) is provided with the other one. The limiting rib (324) is engaged in the limiting groove (115).

9. The lid according to claim 1, characterized in that, The outer peripheral wall of the micro-pressure valve (10) is provided with textured surfaces (116); and / or The cross-sectional area S of the steam channel (13) satisfies: 10 mm 2 ≤S≤125mm 2 ; and / or The number of air outlets (111) is multiple, and the multiple air outlets (111) are arranged in a spiral around the central axis of the micro-pressure valve (10).

10. A cooking utensil, characterized in that, Includes the lid as described in any one of claims 1 to 9.

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