Cooking utensil

Abstract

The cooking utensil comprises a pot cover and a pot body, the pot body comprises an inner pot, the pot cover comprises an outer cover assembly, a metal inner cover and a temperature measuring assembly, the temperature measuring assembly comprises a temperature measuring rod arranged on the outer cover assembly, the outer edge of the metal inner cover is provided with a first metal sealing face matched with the flanging of the inner pot, and the outer edge of the metal inner cover is provided with a second metal sealing face matched with the flanging of the inner pot. The metal inner cover is provided with a temperature measuring hole for the temperature measuring rod to penetrate through, the temperature measuring hole is in clearance fit with the temperature measuring rod, the outer cover assembly is further provided with a sealing piece, and the sealing piece abuts against the periphery of the temperature measuring hole. According to the cooking utensil, a sealing ring between the metal inner cover and the turned edge of the inner pot is omitted, meanwhile, the sealing ring does not need to be embedded in the temperature measuring hole, and therefore installation of the metal inner cover is facilitated.

Description

A cooking utensil Technical Field

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

[0002] Existing cooking appliances include a pot body and a lid. The pot body includes an inner pot, and the lid includes an outer lid assembly, a metal inner lid, and a temperature measuring component. The temperature measuring component includes a temperature measuring rod on the outer lid assembly. The metal inner lid has a sealing ring. When the lid is closed on the pot body, the inner pot flips up and engages with the sealing ring to achieve a seal. After long-term use, the sealing ring on the metal inner lid is easily contaminated and difficult to clean, leading to problems such as discoloration, mold, and displacement of the sealing ring. Continued use will affect the quality of cooking rice and is also detrimental to the health of the consumer, thus reducing the user experience.

[0003] Chinese patent CN207532306U provides a solution for achieving a sealed fit between the metal inner lid and the inner pot without a sealing ring, but it does not consider how to set a top temperature measuring structure on the lid. Existing technology discloses a solution of setting a top temperature measuring structure on a metal inner lid with a sealing ring, such as Chinese patent CN111248757B. However, this is a pressure cooker structure, which needs to maintain the pressure environment inside the cooking cavity. In order to avoid pressure leakage at the temperature measuring hole, a sealing ring is embedded at the temperature measuring hole. The sealing ring seals the gap between the temperature measuring rod and the temperature measuring hole wall to prevent pressure leakage. However, when this temperature measuring structure is applied to ordinary rice cookers, it will make it inconvenient for users to install the metal inner lid. Summary of the Invention [Summary of the Utility Model]

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a cooking utensil that eliminates the sealing ring between the metal inner lid and the inner pot flange, and also eliminates the need to install a sealing ring at the temperature measuring hole, thereby facilitating the installation of the metal inner lid.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A cooking appliance includes a lid and a pot body. The pot body includes an inner pot. The lid includes an outer lid assembly, a metal inner lid, and a temperature measuring assembly. The temperature measuring assembly includes a temperature measuring rod disposed on the outer lid assembly. The outer edge of the metal inner lid has a first metal sealing surface that mates with the flange of the inner pot. The metal inner lid has a temperature measuring hole through which the temperature measuring rod passes. The temperature measuring hole and the temperature measuring rod are in clearance fit. The outer lid assembly also has a sealing element that presses against the outer periphery of the temperature measuring hole.

[0007] In the aforementioned cooking appliance, the sealing element is a sealing ring arranged around the temperature measuring hole, and the sealing ring abuts and seals against the inner metal cover.

[0008] In the aforementioned cooking appliance, the sealing element includes a mounting base for mounting a temperature measuring rod and an elastic element located between the mounting base and the outer cover assembly. The inner metal cover has a second metal sealing surface located on the outer periphery of the temperature measuring hole on the side facing the outer cover assembly. The elastic element applies pressure to the mounting base to make the mounting base and the second metal sealing surface fit tightly together to achieve a seal.

[0009] In the above-mentioned cooking appliance, the second metal sealing surface includes an annular plane and / or annular conical surface, and the mounting base is tightly fitted with the second metal sealing surface to form a circumferential seal.

[0010] In the above-mentioned cooking appliance, the metal inner cover is partially recessed to form a groove, the temperature measuring hole is provided through the bottom wall of the groove, and the second metal sealing surface is provided on the bottom wall of the groove and / or the side wall of the groove.

[0011] In the above-mentioned cooking appliance, the inner metal cover is partially recessed towards the outer cover assembly to form the groove, the temperature measuring rod has a temperature measuring head, the distance between the temperature measuring head and the bottom wall of the groove is L, and the depth of the groove is L1, satisfying 0 < L < L1.

[0012] In the above-mentioned cooking appliance, the second metal sealing surface is provided with a plurality of annular grooves surrounding the temperature measuring holes; or the part of the mounting base that mates with the second metal sealing surface is provided with a plurality of annular grooves surrounding the temperature measuring holes.

[0013] In the above-mentioned cooking appliance, the mounting base has a sealing part that fits tightly against the second metal sealing surface and a pressure-receiving part that abuts against the elastic member. The pressure-receiving part is located close to the sealing part or the pressure-receiving part at least partially overlaps with the sealing part.

[0014] In the aforementioned cooking appliance, the outer cover assembly includes an outer cover, a liner, and a pressure plate mounted on the liner. The liner has a guide hole, the mounting base is floatingly mounted in the guide hole, and the elastic element is disposed between the pressure plate and the mounting base.

[0015] In the aforementioned cooking appliance, the outer cover assembly is provided with a steam outlet, the inner metal cover is provided with a steam inlet, and the outer cover assembly and the inner metal cover are sealed together to form a serpentine steam channel, which connects the steam inlet and the steam outlet.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this utility model, a seal is achieved by fitting the first metal sealing surface of the outer edge of the inner metal cover with the flange of the inner pot, eliminating the need for a sealing ring on the edge of the inner metal cover. This eliminates the problems of odor and mold caused by the presence of a sealing ring, improving the user experience and protecting the user's health. Furthermore, by creating a gap fit between the temperature measuring hole and the temperature measuring rod, and by pressing the sealing element of the outer cover assembly against the outer periphery of the temperature measuring hole, a sealing ring is not required at the temperature measuring hole of the inner metal cover, simplifying the assembly of the inner metal cover. The gap fit between the temperature measuring hole and the temperature measuring rod further facilitates the passage of the temperature measuring rod through the hole, reducing the difficulty of fitting the inner metal cover and the temperature measuring rod, thus simplifying the installation of the inner metal cover. Finally, after the inner and outer cover assemblies are assembled, the sealing element presses against the outer periphery of the temperature measuring hole to achieve a seal, preventing steam leakage.

[0018] 2. The sealing element is a sealing ring surrounding the temperature measuring hole, which abuts against the inner metal cover for a seal. This design not only improves the sealing reliability of the temperature measuring hole, but also allows the sealing ring to be replaced individually.

[0019] 3. The sealing element includes a mounting base for installing the temperature measuring rod and an elastic element located between the mounting base and the outer cover assembly. The inner metal cover has a second metal sealing surface on the side facing the outer cover assembly, located around the temperature measuring hole. The elastic element applies pressure to the mounting base to ensure a tight seal between the mounting base and the second metal sealing surface. This design allows the sealing element and the second metal sealing surface to form a hard seal, eliminating the need for a sealing ring around the temperature measuring hole. This further reduces the number of sealing rings, eliminates odor and mold problems caused by the presence of sealing rings, improves the user experience, and protects user health.

[0020] 4. The second metal sealing surface includes an annular plane and / or annular conical surface, and the mounting base fits tightly with the second metal sealing surface to form a circumferential seal. When the second metal sealing surface only includes an annular plane, it facilitates the processing and forming of the second metal sealing surface, thereby reducing the processing difficulty of the metal inner cover; when the second metal sealing surface only includes an annular conical surface, the fit between the mounting base and the second metal sealing surface becomes increasingly tight as the mounting base moves towards the metal inner cover, further improving the sealing effect between the mounting base and the second metal sealing surface; when the second metal sealing surface includes both an annular plane and an annular conical surface, a double sealing fit is formed between the mounting base and the second metal sealing surface, thereby improving the sealing reliability between the mounting base and the second metal sealing surface.

[0021] 5. A groove is formed by a partial indentation in the inner metal cover, with a temperature measuring hole penetrating the bottom wall of the groove. The second metal sealing surface is located on the bottom wall and / or side wall of the groove. This design, by setting the groove, increases the structural strength of the area where the second metal sealing surface is located, preventing the second metal sealing surface from being deformed by the mounting base, which would lead to the failure of the hard seal between the second metal sealing surface and the mounting base.

[0022] 6. A groove is formed by a partial indentation of the inner metal cover towards the outer cover assembly. The temperature measuring rod has a temperature measuring head. The distance between the temperature measuring head and the bottom wall of the groove is L, and the depth of the groove is L1, satisfying 0 < L < L1. By making L > 0, the temperature measuring head can be ensured to be located inside the cooking cavity, thereby improving its temperature measuring accuracy. However, when L > L1, the temperature measuring head protrudes downward from the bottom surface of the inner metal cover, which may collide with the food inside the cooking cavity. This could cause the temperature measuring head to be pushed up by the food, which in turn pushes up the mounting base, resulting in the mounting base not being able to fit tightly against the second metal sealing surface. Therefore, designing L < L1 can reduce the probability of the temperature measuring head contacting the food inside the cooking cavity, thereby improving the reliability of the tight fit between the mounting base and the second metal sealing surface.

[0023] 7. The second metal sealing surface is provided with multiple annular grooves surrounding the temperature measuring holes; or the part of the mounting base that mates with the second metal sealing surface is provided with multiple annular grooves surrounding the temperature measuring holes. With this design, even if some steam enters between the mounting base and the second metal sealing surface through the temperature measuring holes, this steam is blocked by the wall between two adjacent annular grooves and cooled to form condensate that accumulates on the second metal sealing surface, thereby further preventing steam from overflowing.

[0024] 8. The mounting base has a sealing portion that fits tightly against the second metal sealing surface and a pressure-receiving portion that abuts against the elastic element. The pressure-receiving portion is located close to the sealing portion or at least partially overlaps with the sealing portion. This design shortens the distance between the sealing portion and the pressure-receiving portion when the pressure on the pressure-receiving portion is located close to the sealing portion, thereby reducing the loss of pressure transmitted to the sealing portion due to the leverage effect. This allows the sealing portion to withstand greater pressure, thus improving the tightness of the fit between the sealing portion and the second metal sealing surface. When the pressure-receiving portion at least partially overlaps with the sealing portion, the sealing portion can directly bear the pressure applied by the elastic element without force transmission loss, thereby improving the tightness of the fit between the sealing portion and the second metal sealing surface.

[0025] 9. The outer cover assembly includes an outer cover, a liner, and a pressure plate mounted on the liner. The liner has a guide hole, and the mounting seat is floatingly mounted within the guide hole. An elastic element is located between the pressure plate and the mounting seat. This design guides the floating of the mounting seat through the guide hole, ensuring that the mounting seat can correspond and fit against the second metal sealing surface.

[0026] 10. The outer cover assembly has a steam outlet, and the inner metal cover has a steam inlet. The outer cover assembly and the inner metal cover are sealed together to form a serpentine steam channel, which connects the steam inlet and the steam outlet. This design eliminates the need for a separate steam valve, thus simplifying the lid structure. In addition, the serpentine steam channel causes the steam to change direction and bend multiple times as it flows from the steam inlet to the steam outlet, effectively preventing overflow.

[0027] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Figure 1 is an explosion diagram of the pot lid and inner pot in Embodiment 1 of this utility model;

[0030] Figure 2 is a schematic diagram of the structure of the metal inner cover in Embodiment 1 of this utility model;

[0031] Figure 3 is a schematic diagram of the structure of the liner in Embodiment 1 of this utility model;

[0032] Figure 4 is a cross-sectional view of the temperature measuring rod and the mounting base assembled in Embodiment 1 of this utility model;

[0033] Figure 5 is a cross-sectional view of the steam hood in Embodiment 1 of this utility model;

[0034] Figure 6 is a cross-sectional view of the pot lid covering the inner pot in Embodiment 1 of this utility model;

[0035] Figure 7 is a partially enlarged schematic diagram of A in Figure 6;

[0036] Figure 8 is a magnified view of part B in Figure 6.

[0037] Figure label:

[0038] 100. Outer cover assembly; 101. Steam outlet; 110. Outer cover; 120. Liner; 121. Guide hole; 130. Pressure plate; 131. Guide sleeve; 140. Steam hood; 141. Steam outlet; 142. Baffle; 143. Vent hole; 200. Metal inner cover; 210. Temperature measuring hole; 220. Second metal sealing surface; 230. Groove; 240. Steam inlet; 250. First metal sealing surface; 300. Temperature measuring assembly; 310. Temperature measuring rod; 311. Temperature measuring head; 400. Sealing element; 410. Mounting base; 411. Bottom wall; 4110. Sealing part; 4111. Pressure-bearing part; 412. Side wall; 4120. Limiting edge; 420. Elastic element; 500. Inner pot; 510. Flanged edge. Detailed Implementation Methods

[0039] This utility model provides a cooking utensil, including a lid and a pot body. The pot body includes an inner pot, and the lid includes an outer lid assembly, a metal inner lid, and a temperature measuring assembly. The temperature measuring assembly includes a temperature measuring rod disposed on the outer lid assembly. The outer edge of the metal inner lid is provided with a first metal sealing surface that cooperates with the flange of the inner pot. The metal inner lid is provided with a temperature measuring hole through which the temperature measuring rod passes. The temperature measuring hole and the temperature measuring rod are in clearance fit. The outer lid assembly is also provided with a sealing element that presses against the outer periphery of the temperature measuring hole.

[0040] This invention achieves a seal by engaging the first metal sealing surface of the outer edge of the inner metal cover with the flange of the inner pot, eliminating the need for a sealing ring on the edge of the inner metal cover. This eliminates the problems of odor and mold caused by the presence of a sealing ring, improving the user experience and protecting user health. Furthermore, by creating a gap fit between the temperature measuring hole and the temperature measuring rod, and by having the sealing element of the outer cover assembly press against the outer periphery of the temperature measuring hole, the need for a sealing ring at the temperature measuring hole of the inner metal cover is eliminated, simplifying the assembly of the inner metal cover. The gap fit between the temperature measuring hole and the temperature measuring rod further facilitates the passage of the temperature measuring rod through the hole, reducing the difficulty of fitting the inner metal cover and the temperature measuring rod, thus simplifying the installation of the inner metal cover. Finally, after the inner and outer cover assemblies are assembled, the sealing element presses against the outer periphery of the temperature measuring hole, achieving a seal and preventing steam leakage.

[0041] The technical solutions of the embodiments of this utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this utility model. In addition, it should be understood that the terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," etc., indicating orientation or positional relationship, are only based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device / component must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Example 1

[0043] As shown in Figures 1 to 8, the cooking appliance in this embodiment includes a lid and a pot body. The lid includes an outer lid assembly 100, a metal inner lid 200, and a temperature measuring component 300. The pot body includes an inner pot 500, and the opening of the inner pot 500 is provided with an outwardly extending flange 510. The temperature measuring component 300 includes a temperature measuring rod 310 provided on the outer lid assembly 100. The outer edge of the metal inner lid 200 is provided with a first metal sealing surface 250 that cooperates with the flange 510 of the inner pot. The metal inner lid 200 is provided with a temperature measuring hole 210 through which the temperature measuring rod 310 passes. The temperature measuring hole 210 and the temperature measuring rod 310 are in a clearance fit. The outer lid assembly 100 is also provided with a sealing element 400, which presses against the outer periphery of the temperature measuring hole 210. By achieving a seal through the engagement of the first metal sealing surface 250 on the outer edge of the inner metal cover 200 with the flange 510, the sealing ring located on the edge of the inner metal cover can be eliminated, thereby eliminating the problems of odor and mold caused by the presence of the sealing ring, improving the user experience, and protecting the user's health. Furthermore, by creating a clearance fit between the temperature measuring hole 210 and the temperature measuring rod 310, and by pressing the sealing element 400 against the outer periphery of the temperature measuring hole 210, it is not necessary to install a sealing ring at the temperature measuring hole 210 of the inner metal cover. To simplify the assembly of the inner metal cover 200, and because the temperature measuring hole 210 and the temperature measuring rod 310 are in a clearance fit, it is even more convenient for the temperature measuring rod 310 to pass through the temperature measuring hole 210, reducing the difficulty of fitting the inner metal cover 200 and the temperature measuring rod 310, thus facilitating the installation of the inner metal cover 200; finally, after the inner metal cover 200 and the outer cover assembly 100 are assembled, the sealing element 400 is pressed against the outer periphery of the temperature measuring hole 210 to achieve a seal and prevent steam leakage. Furthermore, the outer cover assembly 100 is also provided with an elastic pressing member (not shown in the figure), which presses against the upper surface of the metal inner cover 200 to make the first metal sealing surface 250 of the metal inner cover 200 and the flange 510 seal better. The pressing position and number of the pressing member can be designed according to actual needs. Furthermore, the outer edge of the metal inner cover 200 protrudes downward to form a U-shaped groove. The outer bottom surface of the U-shaped groove is the first metal sealing surface 250. The U-shaped groove structure can strengthen the structural strength at this point, making the first metal sealing surface 250 less prone to deformation and ensuring its tight fit with the flange 510, further making the sealing connection of the two more stable.

[0044] Specifically, the temperature measuring rod 310 in this embodiment includes a metal tube consisting of a tube wall and a bottom, and a temperature sensing element located inside the metal tube. The temperature sensing element is close to the tube wall and located at the bottom of the metal tube. The metal tube is a tension member and can be a stainless steel tube, an aluminum alloy tube, or a copper tube.

[0045] The sealing element 400 includes a mounting base 410 and an elastic element 420. The temperature measuring rod 310 is fixedly mounted on the mounting base 410. The mounting base 410 is a rigid part made of a hard material such as plastic or metal. The elastic element 420 is located between the mounting base 410 and the outer cover assembly 100. The metal inner cover 200 has a second metal sealing surface 220 surrounding the temperature measuring hole 210 on the side facing the outer cover assembly 100. The elastic element 420 applies pressure to the mounting base 410 so that the mounting base 410 and the second metal sealing surface 220 fit tightly together to achieve a seal. Therefore, by applying pressure to the mounting base 410 through the elastic element 420, it can be tightly pressed onto the second metal sealing surface 220 of the inner metal cover 200, thereby forming a tight fit between the mounting base 410 and the second metal sealing surface 220, achieving a circumferential seal for the temperature measuring hole 210. This prevents steam from the cooking cavity from entering the space between the inner metal cover 200 and the outer cover assembly 100 and located outside the second metal sealing surface 220 through the temperature measuring hole 210. As a result, the sealing ring at the temperature measuring hole 210 can be eliminated, further reducing the number of sealing rings, thereby eliminating the problems of odor and mold caused by the presence of sealing rings, improving the user experience, and protecting the user's health.

[0046] In this embodiment, the mounting base 410 includes a bottom wall 411, and an elastic element 420 is press-fitted onto the bottom wall 411. The bottom wall 411 has a sealing part 4110, and the second metal sealing surface 220 is an annular plane surrounding the temperature measuring hole 210. The bottom surface of the sealing part 4110 is also a plane. This allows the sealing part 4110 to fit tightly with the second metal sealing surface 220 to achieve a planar seal, that is, to form a circumferential seal for the temperature measuring hole 210. Designing the second metal sealing surface 220 as an annular plane can reduce the processing difficulty of the second metal sealing surface 220 and the mounting base 410, thereby reducing the processing difficulty of the metal inner cover 200.

[0047] To enhance the structural strength of the area where the second metal sealing surface 220 is located, in this embodiment, the inner metal cover 200 is partially recessed to form a groove 230. The temperature measuring hole 210 is disposed through the bottom wall of the groove 230, and the second metal sealing surface 220 is disposed on the bottom wall of the groove 230. This design, by providing the groove 230, increases the structural strength of the area where the second metal sealing surface 220 is located, preventing the second metal sealing surface 220 from being deformed by the mounting base 410, thus avoiding the failure of the hard seal between the second metal sealing surface 220 and the mounting base 410.

[0048] Preferably, as shown in Figure 7, in this embodiment, the center of the inner metal cover 200 is recessed towards the outer cover assembly 100 to form the groove 230, that is, the opening of the groove 230 is open towards the cooking cavity, the bottom of the temperature measuring rod 310 forms a temperature measuring head 311, the distance between the temperature measuring head 311 and the bottom wall of the groove is L, and the depth of the groove 230 is L1, satisfying 0 < L < L1. By ensuring L > 0, the temperature sensor 311 is located inside the cooking cavity, thus improving its temperature measurement accuracy. However, when L > L1, the temperature sensor 311 protrudes downwards from the bottom surface of the metal inner cover 200, potentially colliding with the food inside the cooking cavity. This could cause the temperature sensor 311 to be lifted by the food, which in turn lifts the mounting base 410, resulting in the mounting base 410 failing to fit tightly against the second metal sealing surface 220. Therefore, designing L < L1 reduces the probability of the temperature sensor 311 contacting the food inside the cooking cavity, thereby improving the reliability of the tight fit between the mounting base 410 and the second metal sealing surface 220.

[0049] To further prevent steam from flowing into the space between the inner metal cover 200 and the outer cover assembly 100 located outside the second metal sealing surface 220, in this embodiment, the second metal sealing surface 220 is provided with multiple annular grooves surrounding the temperature measuring hole 210; or the portion of the mounting base 410 that mates with the second metal sealing surface 220 is provided with multiple annular grooves surrounding the temperature measuring hole 210. With this design, even if some steam enters between the mounting base 410 and the second metal sealing surface 220 through the temperature measuring hole 210, this steam is blocked by the wall between two adjacent annular grooves and cooled to form condensate that accumulates on the second metal sealing surface 220, thereby further preventing steam overflow.

[0050] As shown in Figures 4 and 7, in order to improve the tightness of the fit between the mounting base 410 and the second metal sealing surface 220, the bottom wall 411 of the mounting base 410 in this embodiment also has a pressure-receiving part 4111 that abuts against the elastic member 420. The pressure-receiving part 4111 is disposed close to the sealing part 4110. In this embodiment, the sealing part 4110 surrounds the outside of the pressure-receiving part 4111 and is connected to the outer edge of the pressure-receiving part 4111. With this design, when the pressure-receiving part 4111 is disposed close to the sealing part 4110, the distance between the sealing part 4110 and the pressure-receiving part 4111 can be shortened, thereby reducing the loss of pressure on the pressure-receiving part 4111 when it is transmitted to the sealing part 4110 due to the leverage effect, so that the sealing part 4110 can be subjected to greater pressure, thereby improving the tightness of the fit between the sealing part 4110 and the second metal sealing surface 220.

[0051] As shown in Figures 1, 3, 4 and 7, in this embodiment, the mounting base 410 is floatingly mounted on the outer cover assembly 100 and can move towards the metal inner cover 200 under the pressure of the elastic member 420. The outer cover assembly 100 includes an outer cover 110, a liner 120 and a pressure plate 130 mounted on the liner 120 by screws. The liner 120 covers the outside of the metal inner cover 200, while the outer cover 110 is located on top of the liner 120. The liner 120 has a vertically penetrating guide hole 121. The pressure plate 130 is located above the mounting base 410 and covers the guide hole 121. The elastic member 420 is pressed between the pressure plate 130 and the pressure-receiving part 4111. The mounting base 410 is floatingly installed in the guide hole 121. The mounting base 410 also includes a vertically upward extending side wall 412. The side wall 412 is connected to the outer edge of the bottom wall 411 and passes through the guide hole 121. The top of the side wall 412 is provided with an outwardly extending limiting edge 4120. The limiting edge 4120 is limited between the top of the guide hole 121 and the pressure plate 130. This design can guide the floating of the mounting base 410 through the guide hole 121 to ensure that the mounting base 410 can be correspondingly fitted to the circumference of the second metal sealing surface 220. It can also limit the floating distance of the temperature measuring component 300 by limiting the floating distance of the limiting edge 4120. In addition, since the pressure plate 130 is detachably connected, it is also convenient to replace or repair the temperature measuring component 300 in the future.

[0052] In this embodiment, the elastic element 420 is a silicone block, a rubber block, or a compression spring, preferably a compression spring. To ensure that the elastic element 420 does not shift during expansion and contraction, thereby ensuring the force balance of the sealing part 4110, the center of the bottom wall 411 in this embodiment is arched upward to form a boss. The top wall of the boss forms the aforementioned pressure-bearing part 4111. Correspondingly, the pressure plate 130 is provided with a guide sleeve 131 extending towards the metal inner cover 200. The upper end of the elastic element 420 is located inside the guide sleeve 131 and connected to the guide sleeve 131. The lower end of the elastic element 420 is sleeved on the outside of the temperature measuring rod 310 and abuts against the pressure-bearing part 4111. The outer diameter of the boss is smaller than the inner diameter of the guide sleeve 131, so that the boss can float inside the guide sleeve 131. The guide sleeve 131 guides the boss so that the mounting base 410 can float up and down smoothly, so as to avoid the displacement during the floating process, which would prevent the sealing part 4110 from forming a circumferential seal with the second metal sealing surface 220.

[0053] It is understood that in other embodiments of this utility model, the pressure plate can also be integrally formed with the cover. In this case, the guide hole wall is provided with a vertically extending snap-fit ​​hole, and the side wall is provided with an elastic buckle that snaps into the snap-fit ​​hole. The elastic buckle floats vertically relative to the snap-fit ​​hole so that the mounting seat floats vertically relative to the cover.

[0054] It is understood that in other embodiments of this utility model, the pressure-bearing part and the sealing part at least partially overlap. This design allows the sealing part to directly bear the pressure applied by the elastic element without generating force transmission loss, thereby improving the tightness of the fit between the sealing part and the second metal sealing surface.

[0055] It is understood that in other embodiments of this utility model, the metal inner cover does not have a groove at the position where the temperature measuring hole is located, and the second metal sealing surface and the sealing part form a planar sealing fit.

[0056] Finally, in this embodiment, the outer cover assembly 100 is provided with a steam outlet 101, and the metal inner cover 200 is provided with a steam inlet 240. The outer cover assembly 100 and the metal inner cover 200 are sealed together to form a serpentine steam channel, which connects the steam inlet 240 and the steam outlet 101. This design eliminates the need for a separate steam valve, thus simplifying the lid structure. Furthermore, the serpentine steam channel causes the steam to undergo multiple reversals and bends as it flows from the steam inlet 240 to the steam outlet 101, effectively preventing overflow.

[0057] As shown in Figures 1, 5, and 8, the outer cover assembly 100 also includes a steam hood 140 detachably connected to the liner 120. A sealing ring is sandwiched between the steam hood 140 and the inner metal cover 200 to achieve a sealed fit, or the two are sealed by close contact to form a steam chamber. Preferably, a close contact is used to achieve the sealed fit, thus eliminating the need for a sealing ring between the steam hood 140 and the inner metal cover 200. The top wall of the steam hood 140 is provided with a steam outlet 141, and a steam outlet 101 is located on the outer cover 110. The steam outlet 141 connects the steam chamber and the steam outlet 101. The top wall of the steam hood 140 is also provided with multiple downwardly extending and laterally spaced baffles 142. The upper and lower ends of the multiple baffles 142 are alternately provided with vent holes 143, so that the multiple baffles 142 separate the steam chamber into the aforementioned serpentine steam channel. Taking a design with two baffles 142 as an example, the steam inlet 240 is located to the right of the steam outlet 141. The two baffles 142 are distributed between the steam inlet 240 and the steam outlet 141 in a left-right direction. The top of the right baffle 142 is provided with a vent hole 143. The bottom of the right baffle 142 abuts against the metal inner cover 200 or has a gap of less than 1 mm to block most of the steam, so that the steam enters between the two baffles 142 through the vent hole 143 on the right baffle 142. The bottom of the left baffle 142 forms the vent hole 143 between the metal inner cover 200, or the left baffle 142 abuts against the metal inner cover 200 and is provided with a vent hole 143 at its lower end, so that the steam between the two baffles 142 flows out through the lower vent hole 143 and is discharged from the steam outlet 141. This design can further simplify the structure of the pot lid, thereby reducing the manufacturing cost of the pot lid.

[0058] It is understood that in other embodiments of this utility model, multiple baffles may also be integrally formed with the metal inner cover and extend vertically upward.

[0059] Example 2

[0060] Compared to Embodiment 1, the difference in this embodiment is that the sealing part is fitted onto the outside of the groove, and the sidewall of the groove is a tapered segment that gradually tapers towards the outer cover assembly. In this case, the second metal sealing surface may only include an annular tapered surface. The outer surface of the groove sidewall forms the aforementioned annular tapered surface, and the sealing part only includes a first sealing part that fits the tapered segment. The first sealing part is tightly fitted to the annular tapered surface. This allows the fit between the mounting base and the second metal sealing surface to become increasingly tighter as the mounting base moves towards the inner metal cover, further enhancing the fit between the mounting base and the second metal sealing surface. Sealing effect; or, in the case where the sidewall of the groove is a tapered section that gradually tapers towards the outer cover assembly, the second metal sealing surface includes an annular plane and an annular tapered surface. The portion of the outer sidewall of the groove surrounding the temperature measuring hole forms an annular plane, while the outer sidewall of the groove forms an annular tapered surface. In this case, the sealing part includes a first sealing part that fits tightly against the annular tapered surface and a second sealing part that fits tightly against the annular plane. This allows a double sealing fit between the mounting base and the second metal sealing surface, thereby improving the sealing reliability between the mounting base and the second metal sealing surface.

[0061] Example 3

[0062] Compared with Embodiments 1 and 2, the difference in this embodiment is that: a portion of the inner metal cover is recessed in the direction away from the outer cover assembly to form a groove, that is, the groove opening is open towards the outer cover assembly, the temperature measuring hole is located on the bottom wall of the groove, the sealing part is inserted into the groove, the side wall of the groove is a tapered section that gradually expands outward towards the outer cover assembly, the second metal sealing surface includes an annular plane on the bottom wall of the groove and / or an annular tapered surface formed by the inner side of the side wall of the groove, and the sealing part is tightly fitted with the second metal sealing surface.

[0063] Example 4

[0064] Compared to embodiments one through three, the difference in this embodiment is that the sealing element is a sealing ring arranged around the temperature measuring hole. The sealing ring is installed on the liner and abuts against the inner metal cover for sealing. This design not only improves the sealing reliability of the temperature measuring hole, but also allows the sealing ring to be replaced individually.

[0065] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A cooking appliance, comprising a lid and a pot body, the pot body comprising an inner pot, the lid comprising an outer lid assembly, a metal inner lid, and a temperature measuring component, the temperature measuring component comprising a temperature measuring rod disposed on the outer lid assembly, characterized in that, The outer edge of the metal inner cover is provided with a first metal sealing surface that mates with the flange of the inner pot. The metal inner cover is provided with a temperature measuring hole through which a temperature measuring rod passes. The temperature measuring hole and the temperature measuring rod are in clearance fit. The outer cover assembly is also provided with a sealing element that presses against the outer periphery of the temperature measuring hole.

2. A cooking utensil as described in claim 1, characterized in that, The sealing element is a sealing ring arranged around the temperature measuring hole, and the sealing ring abuts and seals against the inner metal cover.

3. A cooking appliance as claimed in claim 1, characterized in that, The sealing element includes a mounting base for mounting the temperature measuring rod and an elastic element located between the mounting base and the outer cover assembly. The inner metal cover has a second metal sealing surface located on the outer periphery of the temperature measuring hole on the side facing the outer cover assembly. The elastic element applies pressure to the mounting base to make the mounting base and the second metal sealing surface fit tightly together to achieve a seal.

4. A cooking appliance as claimed in claim 3, characterised in that, The second metal sealing surface includes an annular plane and / or annular conical surface, and the mounting base is in close contact with the second metal sealing surface to form a circumferential seal.

5. A cooking utensil as described in claim 4, characterized in that, The metal inner cover is partially recessed to form a groove, the temperature measuring hole is provided through the bottom wall of the groove, and the second metal sealing surface is provided on the bottom wall of the groove and / or the side wall of the groove.

6. A cooking appliance as claimed in claim 5, characterised in that, The inner metal cover is partially recessed towards the outer cover assembly to form the groove. The temperature measuring rod has a temperature measuring head. The distance between the temperature measuring head and the bottom wall of the groove is L. The depth of the groove is L1, satisfying 0 < L < L1.

7. A cooking appliance as claimed in claim 3, wherein, The second metal sealing surface is provided with multiple annular grooves surrounding the temperature measuring holes; or the part of the mounting base that mates with the second metal sealing surface is provided with multiple annular grooves surrounding the temperature measuring holes.

8. A cooking utensil as described in claim 3, characterized in that, The mounting base has a sealing portion that fits tightly against the second metal sealing surface and a pressure-bearing portion that abuts against the elastic element. The pressure-bearing portion is located close to the sealing portion or the pressure-bearing portion at least partially overlaps with the sealing portion.

9. A cooking appliance as claimed in claim 3, wherein, The outer cover assembly includes an outer cover, a liner, and a pressure plate mounted on the liner. The liner has a guide hole, and the mounting base is floatingly mounted in the guide hole. The elastic element is located between the pressure plate and the mounting base.

10. A cooking appliance as claimed in any one of claims 1 to 9, characterised in that, The outer cover assembly is provided with a steam outlet, and the inner metal cover is provided with a steam inlet. The outer cover assembly and the inner metal cover are sealed together to form a serpentine steam channel, which connects the steam inlet and the steam outlet.

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