Lid assembly and cooking appliance having the same

Abstract

The application provides a cover assembly and a cooking utensil with the same, wherein the cover assembly comprises a cover, a baking assembly, a blocking structure and a pressure cover; the baking assembly comprises a reflecting cover and a heating element; the reflecting cover is arranged below the cover and has a mounting through hole; the heating element is arranged below the reflecting cover; the blocking structure comprises a mounting seat and a first penetrating pipe assembly; the mounting seat is connected to the lower surface of the reflecting cover and located at the mounting through hole; the first penetrating pipe assembly penetrates the mounting through hole upward; the pressure cover is detachably arranged on the cover and below the baking assembly; the second penetrating pipe assembly is arranged on the pressure cover; when the pressure cover is mounted on the cover, the second penetrating pipe assembly is in sealing cooperation with the first penetrating pipe assembly. The technical scheme of the application can effectively solve the problem that the air leakage at the mounting hole of the reflecting cover in the baking mode of the related art affects the baking effect of food.

Description

Technical Field

[0001] This invention relates to the field of small household appliance technology, and more specifically, to a cover assembly and a cooking appliance having the same. Background Technology

[0002] Among related technologies, multifunctional cooking appliances that combine pressure cooking and baking modes greatly facilitate user operation and are highly popular among users.

[0003] Specifically, the lid assembly of this multi-functional appliance includes a lid body, a baking component housed within the lid body, and a pressure cover detachably positioned below the baking component. The pressure cover is removed for baking and installed for pressure cooking. The pressure cover is equipped with an exhaust vent and a stop-opening component. The reflector of the baking component has mounting holes through which the exhaust vent and stop-opening components pass. When the pressure cover is installed on the baking component, the exhaust vent and stop-opening components pass through the mounting holes and seal with the reflector. When the pressure cover is removed for baking, the mounting holes (which are typically large to ensure a seal with the exhaust vent and stop-opening components) leak air, causing heat loss and affecting the baking results. Summary of the Invention

[0004] The main objective of this invention is to provide a cover assembly and a cooking appliance having the same, in order to solve the problem in the related art where air leakage at the mounting holes on the reflector affects the baking effect of food during baking mode.

[0005] To achieve the above objectives, according to one aspect of the present invention, a cover assembly is provided, comprising: a cover; a baking assembly including a reflector and a heating element, the reflector being disposed below the cover and having a mounting through hole, the heating element being disposed below the reflector; a sealing structure including a mounting base and a first through-tube assembly passing through the mounting base, the mounting base being connected to the lower surface of the reflector and located at the mounting through hole, the first through-tube assembly extending upward through the mounting through hole; and a pressure cap detachably disposed on the cover and located below the baking assembly, the pressure cap having a second through-tube assembly passing through it, the second through-tube assembly sealingly engaging with the first through-tube assembly when the pressure cap is mounted on the cover.

[0006] According to the technical solution of this invention, the lid assembly includes a pressure cover detachably disposed on the lid body and located below the baking assembly. When pressure cooking is required, the pressure cover is installed; when baking is required, the pressure cover is removed. The baking assembly includes a reflector and a heating element. The reflector reflects the heat generated by the heating element, directing the heat into the pot for thorough heating of the food. The reflector has a mounting through-hole. The lid assembly also includes a sealing structure connected to the lower surface of the reflector and located at the mounting through-hole. The sealing structure blocks the mounting through-hole, ensuring minimal heat loss during baking and guaranteeing the baking effect. Furthermore, the sealing structure includes a first through-tube assembly, and a second through-tube assembly is provided on the pressure cap to seal with the first through-tube assembly. This means the through-tube structure, originally running through both the pressure cap and the reflector, is split into two parts and installed separately on the reflector and the pressure cap. During pressure cooking, the first and second through-tube assemblies cooperate to achieve the corresponding functions of the through-tube structure in related technologies. In other words, the technical solution of this embodiment, while ensuring that both cooking modes can be performed normally, seals the mounting holes on the reflector, effectively improving the cooking effect and thus enhancing the user experience. Therefore, the technical solution of this application can effectively solve the problem of air leakage at the mounting holes on the reflector affecting the baking effect of food in the baking mode of related technologies.

[0007] Furthermore, the cover assembly also includes a sealing structure fitted over the second through-tube assembly. When the pressure cap is installed on the cover, the sealing structure and the mounting base are in a sealing fit, so that the second through-tube assembly and the first through-tube assembly are in a sealing fit. The sealing structure is fitted over the second through-tube assembly, and when the pressure cap is installed on the cover, a sealing fit between the first through-tube assembly and the second through-tube assembly can be achieved, which is convenient for the user's operation.

[0008] Furthermore, the mounting base includes a housing structure that connects to the reflector, and a sealing structure that seals with the base plate of the housing structure. By making the housing structure the main structure of the mounting base, the material consumption of the mounting base is reduced, while ensuring the structural strength of the mounting base.

[0009] Furthermore, the first through-pipe assembly includes a first exhaust pipe, which is inserted into the box structure and sealed to the bottom plate. The first through-pipe assembly includes a first exhaust pipe, which allows for venting after the pressure cooking heating process is complete, facilitating quick opening of the lid.

[0010] Furthermore, a first sealing element is fitted at the bottom of the first exhaust pipe, and a support plate is provided inside the box structure. The first sealing element is sandwiched between the bottom plate and the support plate. By clamping the first sealing element between the bottom plate and the support plate to fix the first sealing element, it has the advantages of simple structure and reliable fixation, and can ensure the sealing effect. In addition, the setting of the support plate can further increase the strength of the box structure.

[0011] Furthermore, the second through-pipe assembly includes a second exhaust pipe, and the sealing structure includes a second sealing element sleeved on the second exhaust pipe. During pressure cooking, the second exhaust pipe is correspondingly arranged with the first exhaust pipe, and the two work together to achieve the exhaust function. The second sealing element achieves a sealed connection between the first and second exhaust pipes, which can prevent high-pressure gas from leaking out from the gap between the first and second exhaust pipes during exhaust, thus ensuring the exhaust effect.

[0012] Furthermore, the top end of the second exhaust pipe is provided with a first protruding edge, and the second seal includes a first annular main body and a first flange connected to the bottom end of the first annular main body and extending inward, the first flange being sandwiched between the first protruding edge and the pressure cover. By sandwiching the first flange between the first protruding edge and the pressure cover, the second seal is fixed to the pressure cover, which has the advantage of simple structure.

[0013] Furthermore, the first through-tube assembly includes a first stop rod, which is movably inserted into the mounting base. After the heating process of pressure cooking ends and before the pressure is released, the first stop rod can pass through the stop hole on the locking ring, preventing the locking ring from rotating and thus restricting the user from opening the lid, ensuring the user's safety.

[0014] Furthermore, the second through-pipe assembly includes a valve seat disposed on the pressure cover and a second stop rod that can float up and down inside the valve seat. The second stop rod is correspondingly disposed to the first stop rod, and the sealing structure includes a third sealing element sleeved on the valve seat. During pressure cooking, the second stop rod and the first stop rod are correspondingly disposed, and the two together achieve the stop-opening function.

[0015] Furthermore, the valve seat is provided with a second raised edge, and the third seal includes a second annular main body and a second flange connected to the bottom end of the second annular main body and extending inward, the second flange being sandwiched between the second raised edge and the pressure cover. By sandwiching the second flange between the second raised edge and the pressure cover, the third seal is fixed to the pressure cover, which has the advantage of simple structure.

[0016] Furthermore, the first sealing element includes a sealing gasket, and also includes a third flange extending upward from the outer periphery of the sealing gasket. A slot is provided at the bottom end of the support plate, and the third flange is inserted into the slot. Alternatively, the sealing gasket has a through hole, at which a downwardly extending fourth flange and an inwardly extending first sealing lip are provided. The fourth flange is inserted between the base plate and the first exhaust pipe, and the upper surface of the first sealing lip abuts against the outer wall of the first exhaust pipe. The engagement of the slot and the third flange prevents misalignment of the first sealing element relative to the support plate, ensuring a secure fixation of the first sealing element. The fourth flange and the first sealing lip, provided within the through hole, ensure a sealing effect on the first exhaust pipe and the base plate, preventing high-pressure gas from entering the box structure through the gap between the first exhaust pipe and the base plate during exhaust, thus ensuring effective exhaust.

[0017] Furthermore, the second seal also includes a second sealing lip connected to the upper end of the first annular body and extending upward and inward. The thickness of the second sealing lip is less than the thickness of the first annular body; and / or, the thickness of the first annular body is between 1.5 mm and 3.5 mm. Because the thickness of the second sealing lip is less than that of the first annular body, when the pressure cap is installed on the cover, the second sealing lip is easily deformed inward under pressure and pressed tightly against the lower surface of the base plate, ensuring a sealing effect. Making the first annular body thicker gives it a certain pressure-bearing capacity, effectively preventing high-pressure gas leakage and ensuring a sealing effect.

[0018] Furthermore, the second pipe assembly also includes a fourth seal and a locking element. The locking element is connected to the lower end of the second exhaust pipe, and the fourth seal is fitted onto the second exhaust pipe and sandwiched between the pressure cap and the locking element. By placing the fourth seal below the pressure cap and pressing it tightly under the pressure cap with the locking element, high-pressure gas can be prevented from leaking out from the gap between the pressure cap and the second exhaust pipe.

[0019] Furthermore, the third seal also includes a third sealing lip connected to the upper end of the second annular body and extending upward and inward. The thickness of the third sealing lip is less than the thickness of the second annular body; and / or, the thickness of the second annular body is between 1.5 mm and 2.5 mm. Because the thickness of the third sealing lip is less than that of the second annular body, when the pressure cap is installed on the cover, the third sealing lip is easily deformed inward under pressure and thus pressed tightly against the lower surface of the base plate, ensuring a sealing effect. Setting the thickness of the second annular body to be smaller reduces the material required for the third seal.

[0020] According to another aspect of the present invention, a cooking appliance is provided, including a pot body assembly and a lid assembly disposed on the pot body assembly, wherein the lid assembly is the lid assembly described above. The lid assembly described above effectively solves the problem in the related art where air leakage at the mounting holes on the reflector during baking mode affects the baking effect of food, and the cooking appliance having the lid assembly described above also has the aforementioned advantages. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 A three-dimensional structural schematic diagram of a baking assembly and a sealing structure according to an embodiment of the cover assembly of the present invention is shown;

[0023] Figure 2 It shows Figure 1 An exploded structural diagram of the baking components and sealing structure;

[0024] Figure 3 A perspective view of a pressure cap, a second through-tube assembly, and a sealing structure according to an embodiment of the cap assembly of the present invention is shown.

[0025] Figure 4 It shows Figure 1 A schematic diagram of the exploded structure of the sealing structure;

[0026] Figure 5 A cross-sectional schematic diagram of an embodiment of a cooking appliance according to the present invention is shown;

[0027] Figure 6 It shows Figure 5 A cross-sectional view of the lid assembly of a cooking utensil;

[0028] Figure 7 It shows Figure 6 Enlarged view of some structures of cooking utensils;

[0029] Figure 8 It shows Figure 7 A magnified view of point A on the cooking utensil;

[0030] Figure 9 It shows Figure 7 A magnified view of section B of the cooking utensil.

[0031] The above figures include the following reference numerals:

[0032] 10. Cover body; 11. Inner liner cover; 12. Locking cover;

[0033] 20. Baking assembly; 21. Reflector; 211. Mounting through hole;

[0034] 30. Sealing structure; 31. Mounting base; 311. Box structure; 3111. Top plate; 3112. Enclosure plate; 3113. Support plate; 3114. First sleeve; 3115. Second sleeve; 3116. Sixth flange; 312. Bottom plate; 32. First through-pipe assembly; 321. First exhaust pipe; 3211. Fourth flange; 322. First seal; 3221. Sealing gasket; 3222. Third flange; 3223. Through hole; 3224. Fourth flange; 3225. First sealing lip; 323. First stop rod; 3231. Third flange; 324. Fifth seal; 325. Fastener; 326. Spring washer; 327. Sixth seal;

[0035] 40. Pressure cap;

[0036] 50. Second through-pipe assembly; 51. Second exhaust pipe; 511. First flange; 52. Valve seat; 521. Second flange; 53. Second stop rod; 54. Fourth seal; 55. Locking element; 56. Anti-clogging cover;

[0037] 60. Sealing structure; 61. Second sealing element; 611. First annular main body; 612. First flange; 613. Second sealing lip; 62. Third sealing element; 621. Second annular main body; 622. Second flange; 623. Third sealing lip;

[0038] 70. Clay pot body components. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in this embodiment, the cover assembly includes: a cover 10, a baking assembly 20, a sealing structure 30, a pressure cap 40, and a second through-tube assembly 50. The baking assembly 20 includes a reflector 21 and a heating element. The reflector 21 is located below the cover 10 and has a mounting through-hole 211. The heating element is located below the reflector 21. The sealing structure 30 includes a mounting base 31 and a first through-tube assembly 32 passing through the mounting base 31. The mounting base 31 is connected to the lower surface of the reflector 21 and located at the mounting through-hole 211. The first through-tube assembly 32 extends upward through the mounting through-hole 211. The pressure cap 40 is detachably disposed on the cover 10 and located below the baking assembly 20. The pressure cap 40 has the second through-tube assembly 50 passing through it. When the pressure cap 40 is installed on the cover 10, the second through-tube assembly 50 and the first through-tube assembly 32 are sealed together.

[0043] Applying the technical solution of this embodiment, the cover assembly includes a pressure cover 40 detachably disposed on the cover 10 and located below the baking assembly 20. When pressure cooking is required, the pressure cover 40 can be installed; when baking is required, the pressure cover 40 can be removed. The baking assembly 20 includes a reflector 21 and a heating element. The reflector 21 can reflect the heat generated by the heating element and guide the heat into the pot to fully heat the food. The reflector 21 is provided with a mounting through hole 211. The cover assembly also includes a sealing structure 30 connected to the lower surface of the reflector 21 and located at the mounting through hole. The sealing structure 30 can block the mounting through hole 211, so that only a very small amount of heat is lost from the mounting through hole 211 during baking mode (in related technologies, the area of ​​the through hole for heat loss is the area of ​​the mounting hole; in this embodiment, the area of ​​the through hole for heat loss is only the cross-sectional area of ​​the inner surface of the tubular structure in the first through-tube assembly 32), ensuring the baking effect. Furthermore, the sealing structure 30 includes a first through-tube assembly 32, and a second through-tube assembly 50 is provided on the pressure cover 40 to seal with the first through-tube assembly 32. This means that the through-tube structure, originally simultaneously passing through the pressure cover 40 and the reflector 21, is split into two parts (the first through-tube assembly 32 and the second through-tube assembly 50) and installed on the reflector 21 and the pressure cover 40 respectively. During pressure cooking, the first through-tube assembly 32 and the second through-tube assembly 50 cooperate to achieve the corresponding function of the through-tube structure in related technologies. In other words, the technical solution of this embodiment, while ensuring that both cooking modes can be performed normally, seals the mounting hole 211 on the reflector 21, effectively improving the cooking effect and thus enhancing the user experience. Therefore, the technical solution of this embodiment can effectively solve the problem in related technologies where air leakage at the mounting hole on the reflector affects the baking effect of food during baking mode.

[0044] It should be noted that the above-mentioned "first pipe assembly 32 extending upward through the mounting through hole 211" includes the first pipe assembly 32 always extending through the mounting through hole 211 (for example, the first exhaust pipe 321 always extending through the mounting through hole 211, that is, the first stop rod 323 extending through the mounting through hole 211 regardless of whether it is subjected to pressure inside the pot) or extending through the mounting through hole 211 only under certain conditions (for example, the first stop rod 323 extending through the mounting through hole 211 under pressure inside the pot, and its top being lower than the mounting through hole 211 when not subjected to pressure inside the pot). The above-mentioned "second pipe assembly 50 sealingly engaging with the first pipe assembly 32" refers to the fact that the first pipe assembly 32 and the second pipe assembly 50 are connected and isolated from the outside.

[0045] like Figure 6As shown, in this embodiment, the cover 10 includes a front cover (not shown) and an inner cover 11 arranged sequentially from the outside to the inside. The inner cover 11 houses a baking assembly 20 and a locking cover 12. The locking cover 12 has locking teeth that engage with the pot teeth of the cooker assembly 70 to achieve pressure cooking. The locking cover 12 is rotatably mounted on the inner cover 11 or the reflector 21 and is located outside the pressure cover 40. The pressure cover 40 is detachably mounted on the inner cover 11 and located below the reflector 21 of the baking assembly 20. The inner cover 11 has a slot on its side wall and a connecting post extending downward through the reflector 21 on its top wall. The pressure cover 40 has a plug at its edge that engages with the slot, and also has a hole for engaging with the connecting post. The detachable connection between the pressure cover 40 and the inner cover 11 is achieved through the engagement of the slot and the plug, and the engagement of the connecting post and the hole.

[0046] like Figure 3 as well as Figures 5 to 9 As shown, the cover assembly also includes a sealing structure 60 sleeved on the outside of the second through-tube assembly 50. When the pressure cap 40 is installed on the cover 10, the sealing structure 60 and the mounting base 31 are in a sealing fit, so that the second through-tube assembly 50 and the first through-tube assembly 32 are in a sealing fit. The sealing structure 60 is sleeved on the outside of the second through-tube assembly 50. When the pressure cap 40 is installed on the cover 10, a sealing fit can be achieved between the first through-tube assembly 32 and the second through-tube assembly 50, which is convenient for user operation.

[0047] like Figure 1 as well as Figures 3 to 9 As shown, the mounting base 31 includes a housing structure 311 with a base plate 312. The housing structure 311 is connected to the reflector 21 (specifically, it can be connected to the lower surface of the reflector 21 or to the side plate of the reflector 21). The sealing structure 60 is sealed to the base plate 312. Specifically, the housing structure 311 includes a housing body with a bottom opening and a base plate 312 covering the bottom of the housing body. Since there is a certain assembly relationship between the first tube assembly 32 and the mounting base 31, the mounting base 31 is set as a split structure to facilitate the assembly of the mounting base 31 and the first tube assembly 32. Since there is a certain distance between the upper surface of the pressure cover 40 and the lower surface of the reflector 21, the mounting base 31 also needs to have a certain height. The housing structure 311 serves as the main structure of the mounting base 31, reducing the material consumption of the mounting base 31 while ensuring the structural strength of the mounting base 31. In addition, during assembly, the top of the main body of the box is connected to the reflector 21 by fasteners, and the bottom plate 312 is connected to the bottom of the main body of the box by fasteners, making the structure more reasonable.

[0048] Specifically, when assembling the mounting base 31 and the mounting base 31 and the reflector 21, the first through-tube assembly 32 is first inserted into the main body of the box, then the base plate 312 is connected to the bottom of the main body of the box, and then the assembled sealing structure 30 is installed under the reflector 21.

[0049] In this embodiment, the base plate 312 can be made of metal. When baking, the base plate 312 can also reflect the heat generated by the heating element, further improving the cooking effect.

[0050] like Figures 4 to 8 As shown, the first through-pipe assembly 32 includes a first exhaust pipe 321, which passes through the box structure 311 and is sealed to the bottom plate 312. Specifically, the main body of the box structure 311 includes a top plate 3111 and a surrounding plate 3112 connected to the outer periphery of the top plate 3111 and extending downward. The first through-pipe assembly 32 includes the first exhaust pipe 321. After the heating process of pressure cooking is completed, exhaust can be released through the first exhaust pipe 321, which facilitates quick opening of the lid.

[0051] like Figures 4 to 8 As shown, in this embodiment, a first sealing element 322 is fitted onto the bottom of the first exhaust pipe 321, and a support plate 3113 is provided inside the box structure 311. The first sealing element 322 is sandwiched between the bottom plate 312 and the support plate 3113. By sandwiching the first sealing element 322 between the bottom plate 312 and the support plate 3113 to fix the first sealing element 322, the structure is simple and the fixation is reliable, ensuring the sealing effect. In addition, the provision of the support plate 3113 can further increase the strength of the box structure 311. Specifically, in this embodiment, the support plate 3113 is connected below the top plate 3111 and located inside the surrounding plate 3112.

[0052] like Figures 4 to 8 As shown, the second pipe assembly 50 includes a second exhaust pipe 51 corresponding to the first exhaust pipe 321, and the sealing structure 60 includes a second sealing element 61 sleeved on the second exhaust pipe 51. During pressure cooking, the second exhaust pipe 51 is positioned correspondingly to the first exhaust pipe 321, and the two work together to achieve the exhaust function. The second sealing element 61 achieves a sealed connection between the first exhaust pipe 321 and the second exhaust pipe 51, which can prevent high-pressure gas from leaking out from the gap between the first exhaust pipe 321 and the second exhaust pipe 51 during exhaust, thus ensuring the exhaust effect.

[0053] Specifically, such as Figures 6 to 8As shown, the first sealing element 322 includes a sealing gasket 3221 and a third flange 3222 that surrounds the outer periphery of the sealing gasket 3221 and extends upward. The bottom end of the support plate 3113 is provided with a slot, and the third flange 3222 is inserted into the slot. This arrangement can prevent the first sealing element 322 from being misaligned relative to the support plate 3113, ensuring the fixing effect of the first sealing element 322.

[0054] like Figures 6 to 8 As shown, in this embodiment, the first sealing element 322 includes a sealing gasket 3221. The sealing gasket 3221 has a through hole 3223. A downwardly extending fourth flange 3224 and an inwardly extending first sealing lip 3225 are provided at the through hole 3223. The fourth flange 3224 is inserted between the base plate 312 and the first exhaust pipe 321. The upper surface of the first sealing lip 3225 abuts against the outer wall of the first exhaust pipe 321. Specifically, the inner surface dimension of the first sealing lip 3225 is slightly smaller than the radial dimension of the first exhaust pipe 321. During the assembly of the first sealing element 322 and the first exhaust pipe 321, the first exhaust pipe 321 is inserted from top to bottom into the through hole 3223. As the first exhaust pipe 321 moves downward, the free end of the first sealing lip 3225 bends downward, causing the upper surface of the first sealing lip 3225 to abut against the outer wall of the first exhaust pipe 321, ensuring a sealing effect. By setting a fourth flange 3224 and a first sealing lip 3225 at the through hole 3223, the sealing effect on the first exhaust pipe 321 and the bottom plate 312 can be guaranteed, preventing high-pressure gas from entering the box structure 311 through the gap between the first exhaust pipe 321 and the bottom plate 312 during the exhaust process, thus ensuring the exhaust effect.

[0055] like Figures 4 to 8 As shown, the top end of the second exhaust pipe 51 is provided with a first protruding edge 511. The second sealing member 61 includes a first annular main body portion 611 and a first flange 612 connected to the bottom end of the first annular main body portion 611 and extending inward. The first flange 612 is sandwiched between the first protruding edge 511 and the pressure cover 40. By sandwiching the first flange 612 between the first protruding edge 511 and the pressure cover 40, the second sealing member 61 is fixed to the pressure cover 40, which has the advantage of simple structure.

[0056] like Figures 6 to 8 As shown, the second seal 61 also includes a second sealing lip 613 connected to the upper end of the first annular body 611 and extending upward and inward. The thickness of the second sealing lip 613 is less than the thickness of the first annular body 611. Because the thickness of the second sealing lip 613 is less than the thickness of the first annular body 611, when the pressure cap 40 is installed on the cover 10, the second sealing lip 613 is easily deformed inward under pressure and thus pressed against the lower surface of the base plate 312, ensuring a sealing effect.

[0057] In this embodiment, the thickness of the first annular main body 611 is between 1.5 mm and 3.5 mm. Since high-pressure gas enters the interior of the second seal 61 during venting, making the first annular main body 611 relatively thick provides it with a certain pressure-bearing capacity, effectively preventing high-pressure gas leakage and ensuring a sealing effect. Preferably, the thickness of the first annular main body 611 can be 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, or 3.5 mm.

[0058] like Figures 6 to 8 As shown, the second pipe assembly 50 also includes a fourth sealing element 54 and a locking element 55. The locking element 55 is connected to the lower end of the second exhaust pipe 51, and the fourth sealing element 54 is sleeved on the second exhaust pipe 51 and sandwiched between the pressure cover 40 and the locking element 55. The fourth sealing element 54 is positioned below the pressure cover 40 and pressed tightly against it by the locking element 55, preventing high-pressure gas from leaking out from the gap between the pressure cover 40 and the second exhaust pipe 51. The second pipe assembly 50 also includes a washer and a spring washer disposed between the locking element 55 and the fourth sealing element 54. During the locking process of the locking element 55, the first flange 511 is pressed down, the locking element 55 is pressed up, and the first flange 612, the pressure cover 40, the fourth sealing element 54, the washer, and the spring washer are pressed tightly between them, ensuring the fixing effect of the second sealing element 61 and the sealing effect between the second exhaust pipe 51 and the pressure cover 40.

[0059] like Figure 8 As shown, the second pipe assembly 50 also includes an anti-blocking cover 56 sleeved around the second exhaust pipe 51 and located below the pressure cover 40. The anti-blocking cover 56 can prevent food from blocking the exhaust port of the second exhaust pipe 51 during the exhaust process, ensuring smooth exhaust.

[0060] like Figure 8As shown, the fixing method between the first exhaust pipe 321 and the housing structure 311 is similar to the fixing method between the second exhaust pipe 51 and the pressure cover 40. Specifically, the housing structure 311 is provided with a first sleeve 3114, the first exhaust pipe 321 passes through the first sleeve 3114, the first exhaust pipe 321 is provided with a fourth protrusion 3211, and the first pipe assembly 32 also includes a fifth sealing member 324 sleeved on the first exhaust pipe 321 and located below the fourth protrusion 3211, and a sealing member 324 located between the fourth protrusion 3211 and the fifth... The gasket between the seals 324, the fourth protrusion 3211, the gasket and the fifth seal 324 are all located above the first sleeve 3114. The first through-pipe assembly 32 also includes a screw 325 sleeved on the lower end of the first exhaust pipe 321 and a spring washer 326 located between the screw 325 and the bottom surface of the first sleeve 3114. During the process of tightening the screw 325, the fourth protrusion 3211 is pressed down and the screw 325 is pressed up to achieve a fixed connection and a sealing connection between the first exhaust pipe 321 and the box structure 311.

[0061] like Figures 4 to 9 As shown, the first tube assembly 32 includes a first stop rod 323, which is movably and vertically inserted into the mounting base 31. After the heating process of pressure cooking ends but before pressure release is complete, the first stop rod 323 can pass through the stop hole on the locking ring, preventing the locking ring from rotating and thus restricting the user from opening the lid, ensuring user safety. After pressure release, the first stop rod 323 falls and no longer engages with the stop hole on the locking ring, at which point the user can open the lid assembly. Specifically, the mounting base 31 includes a box structure 311, which includes a box body and a bottom plate 312 covering the bottom of the box body. The box body includes a top plate 3111 and a surrounding plate 3112 connected to the outer periphery of the top plate 3111 and extending downwards. The first stop rod 323 is movably and vertically inserted into the top plate 3111 and the bottom plate 312.

[0062] The second through-pipe assembly 50 includes a valve seat 52 disposed on the pressure cover 40 and a second stop-opening rod 53 that is vertically and flexibly disposed within the valve seat 52. The second stop-opening rod 53 is correspondingly disposed with the first stop-opening rod 323. The sealing structure 60 includes a third sealing element 62 sleeved on the valve seat 52. During pressure cooking, the second stop-opening rod 53 and the first stop-opening rod 323 are correspondingly disposed, and the two together achieve the stop-opening function. Specifically, when the pressure inside the pot is high, the second stop-opening rod 53 will be pushed up by the high-pressure gas, thereby pushing up the first stop-opening rod 323; after the pressure is released, both the first stop-opening rod 323 and the second stop-opening rod 53 will fall down under the action of gravity.

[0063] like Figure 9As shown, a second sleeve 3115 is provided inside the box structure 311. The inner surface of the second sleeve 3115 has a sixth protruding edge 3116. A first stop rod 323 passes through the second sleeve 3115. A third protruding edge 3231 is provided on the first stop rod 323. When assembling the first stop rod 323 and the box body, the first stop rod 323 is inserted into the second sleeve 3115 from top to bottom. The first stop rod 323 is suspended inside the second sleeve 3115 under the stop action of the sixth protruding edge 3116 and the third protruding edge 3231. Then, a sixth sealing element 327 is fitted onto the bottom end of the first stop rod 323, which realizes that the first stop rod 323 can be movably inserted into the second sleeve 3115 and can prevent the first stop rod 323 from detaching from the second sleeve 3115. In this embodiment, the upper end of the second sleeve 3115 extends upward through the top plate 3111. Before the pressure relief is completed, when the user tries to force open the cover, the upper end of the second sleeve 3115 can effectively support the first stop rod 323, preventing the first stop rod 323 from being deformed by strong force.

[0064] like Figure 9 As shown, the connection between the second stop rod 53 and the valve seat 52 is similar to the connection between the first stop rod 323 and the main body of the box, and will not be described again here.

[0065] like Figure 6 , Figure 7 and Figure 9 As shown, the valve seat 52 is provided with a second protruding edge 521, and the third sealing member 62 includes a second annular main body portion 621 and a second flange 622 connected to the bottom end of the second annular main body portion 621 and extending inward. The second flange 622 is sandwiched between the second protruding edge 521 and the pressure cover 40. By sandwiching the second flange 622 between the second protruding edge 521 and the pressure cover 40, the third sealing member 62 is fixed to the pressure cover 40, which has the advantage of simple structure.

[0066] like Figure 6 , Figure 7 and Figure 9 As shown, the third seal 62 also includes a third sealing lip 623 connected to the upper end of the second annular body 621 and extending upward and inward. The thickness of the third sealing lip 623 is less than the thickness of the second annular body 621. Because the thickness of the third sealing lip 623 is less than the thickness of the second annular body 621, when the pressure cap 40 is installed on the cover 10, the third sealing lip 623 is easily deformed inward under pressure and thus pressed against the lower surface of the base plate 312, ensuring a sealing effect.

[0067] In this embodiment, the thickness of the second annular main body 621 is between 1.5 mm and 2.5 mm. Since the sealing requirements for the third seal 62 are relatively weak, setting the thickness of the second annular main body 621 to be smaller can reduce the material used in the third seal 62. Preferably, the thickness of the second annular main body 621 can be 1.5 mm, 2.0 mm, or 2.5 mm.

[0068] In this embodiment, each seal is made of silicone material.

[0069] like Figures 5 to 8 As shown, this application also provides a cooking appliance. An embodiment of the cooking appliance of this application includes a pot body assembly 70 and a lid assembly covering the pot body assembly 70, wherein the lid assembly is the aforementioned lid assembly. The aforementioned lid assembly can effectively solve the problem in the related art where air leakage at the mounting holes on the reflector during baking mode affects the baking effect of food. The cooking appliance with the aforementioned lid assembly also has the aforementioned advantages.

[0070] In this embodiment, the cooking appliance is a pressure cooker / baking pot. Of course, in embodiments not shown in the figures, the cooking appliance can also be a rice cooker, pressure cooker, low-pressure rice cooker, soy milk maker, food processor, stir-fry machine, slow cooker, multi-functional pot, etc.

[0071] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0072] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0073] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0074] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cover assembly, characterized in that, include: Cover (10); The baking assembly (20) includes a reflector (21) and a heating element, wherein the reflector (21) is disposed below the cover (10) and has a mounting through hole (211), and the heating element is disposed below the reflector (21); The sealing structure (30) includes a mounting base (31) and a first through-tube assembly (32) passing through the mounting base (31). The mounting base (31) is connected to the lower surface of the reflector (21) and located at the mounting through hole (211). The first through-tube assembly (32) extends upward through the mounting through hole (211). A pressure cap (40) is detachably disposed on the cover body (10) and located below the baking assembly (20). A second tube assembly (50) is provided on the pressure cap (40). When the pressure cap (40) is installed on the cover body (10), the second tube assembly (50) is sealed to the first tube assembly (32) so that the first tube assembly (32) and the second tube assembly (50) are connected and isolated from the outside. The cover assembly also includes a sealing structure (60) sleeved on the outside of the second through-tube assembly (50). The mounting base (31) includes a housing structure (311), and the first through-pipe assembly (32) includes a first exhaust pipe (321), which passes through the housing structure (311). The second through-pipe assembly (50) includes a second exhaust pipe (51), and the sealing structure (60) includes a second seal (61) fitted onto the second exhaust pipe (51).

2. The cover assembly according to claim 1, characterized in that, When the pressure cap (40) is installed on the cap body (10), the sealing structure (60) is sealed to the mounting base (31) so that the second tube assembly (50) is sealed to the first tube assembly (32).

3. The cover assembly according to claim 2, characterized in that, The box structure (311) is connected to the reflector (21), and the sealing structure (60) is sealed to the bottom plate (312) of the box structure (311).

4. The cover assembly according to claim 3, characterized in that, The first exhaust pipe (321) is sealed to the base plate (312).

5. The cover assembly according to claim 4, characterized in that, The bottom of the first exhaust pipe (321) is fitted with a first sealing element (322), and the box structure (311) is provided with a support plate (3113). The first sealing element (322) is sandwiched between the bottom plate (312) and the support plate (3113).

6. The cover assembly according to claim 1, characterized in that, The second exhaust pipe (51) has a first protruding edge (511) at its top end. The second seal (61) includes a first annular body portion (611) and a first flange (612) connected to the bottom end of the first annular body portion (611) and extending inward. The first flange (612) is sandwiched between the first protruding edge (511) and the pressure cap (40).

7. The cover assembly according to claim 3, characterized in that, The first tube-through assembly (32) includes a first stop rod (323), which is movably and vertically inserted into the mounting base (31).

8. The cover assembly according to claim 7, characterized in that, The second through-pipe assembly (50) includes a valve seat (52) disposed on the pressure cover (40) and a second stop rod (53) that can float up and down inside the valve seat (52). The second stop rod (53) is disposed corresponding to the first stop rod (323). The sealing structure (60) includes a third sealing element (62) sleeved on the valve seat (52).

9. The cover assembly according to claim 8, characterized in that, The valve seat (52) is provided with a second protrusion (521), and the third seal (62) includes a second annular body (621) and a second flange (622) connected to the bottom end of the second annular body (621) and extending inward. The second flange (622) is sandwiched between the second protrusion (521) and the pressure cover (40).

10. The cover assembly according to claim 5, characterized in that, The first seal (322) includes a sealing gasket (3221). The first sealing element (322) further includes a third flange (3222) surrounding the outer periphery of the sealing gasket (3221) and extending upward, and the bottom end of the support plate (3113) is provided with a slot, the third flange (3222) being inserted into the slot; and / or, The sealing gasket (3221) is provided with a through hole (3223), and a fourth flange (3224) extending downward and a first sealing lip (3225) extending inward are provided at the through hole (3223). The fourth flange (3224) is inserted between the base plate (312) and the first exhaust pipe (321), and the upper surface of the first sealing lip (3225) abuts against the outer wall of the first exhaust pipe (321).

11. The cover assembly according to claim 6, characterized in that, The second seal (61) further includes a second sealing lip (613) connected to the upper end of the first annular body portion (611) and extending upward and inward, the thickness of the second sealing lip (613) being less than the thickness of the first annular body portion (611); and / or, The thickness of the first annular main body (611) is between 1.5 mm and 3.5 mm.

12. The cover assembly according to claim 1, characterized in that, The second pipe assembly (50) further includes a fourth seal (54) and a locking member (55), the locking member (55) being connected to the lower end of the second exhaust pipe (51), the fourth seal (54) being fitted onto the second exhaust pipe (51) and sandwiched between the pressure cap (40) and the locking member (55).

13. The cover assembly according to claim 9, characterized in that, The third seal (62) further includes a third sealing lip (623) connected to the upper end of the second annular body (621) and extending upward and inward, the thickness of the third sealing lip (623) being less than the thickness of the second annular body (621); and / or, The thickness of the second annular main body (621) is between 1.5 mm and 2.5 mm.

14. A cooking appliance comprising a pot body assembly (70) and a lid assembly covering the pot body assembly (70), characterized in that, The cover assembly is the cover assembly according to any one of claims 1 to 13.

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