Upper cover and cooking utensil with same

Abstract

The utility model provides an upper cover and a cooking utensil with the same, and the upper cover comprises a cover body which comprises an outer cover and an inner cover, and the inner cover is arranged below the outer cover; the baking assembly comprises a motor and first fan blades, the motor is provided with a motor shaft, the motor shaft comprises a shaft body and a shaft sleeve arranged on the shaft body in a sleeving mode, the first fan blades are rotatably arranged below the inner cover, and the motor shaft is in driving connection with the first fan blades; the sealing assembly comprises an elastic sealing ring and a positioning ring, a through hole is formed in the inner cover, the elastic sealing ring is arranged at the through hole and connected with the inner cover, and the positioning ring is arranged on the elastic sealing ring; wherein the motor shaft penetrates through an inner hole of the positioning ring and an inner hole of the positioning ring, the shaft sleeve is provided with a sealing section located above the elastic sealing ring, and the elastic sealing ring is provided with an initial position separated from the sealing section and a sealing position floating upwards to be attached to the sealing section. According to the scheme, the problem that a motor shaft sealing structure cannot meet the use requirement can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of small household appliances, in particular to an upper cover and a cooking utensil having the same. Background Art

[0002] Electric pressure cookers are cooking appliances that are often used in daily life. With the improvement of people's living standards, electric pressure cookers with pressure cooking mode and baking cooking mode have emerged. They can not only cook food under pressure, but also have the function of air fryer to bake food.

[0003] In the related art, the cooking device includes an upper cover and a pot body, and the upper cover is provided with a motor and a fan blade, and the fan blade is driven to rotate by the output shaft of the motor to blow hot air into the pot body to bake the food. In order to ensure the sealing performance in the pressure cooking mode and not hinder the rotation of the motor output shaft, an elastic sealing ring is provided between the motor output shaft and the upper cover, and the deformation of the inner edge of the elastic sealing ring is used to seal the gap between the output shaft and the upper cover.

[0004] However, with the above sealing method, the elastic seal is soft in texture, resulting in poor positioning and easy deviation of the sealing position. At the same time, the elastic seal has poor lubrication effect, which will hinder the rotation of the output shaft. Utility Model Content

[0005] The utility model provides an upper cover and a cooking utensil having the same, so as to solve the problem that the motor shaft sealing structure in the related technology cannot meet the use requirements.

[0006] According to one aspect of the utility model, there is provided an upper cover, which comprises: a cover body, comprising an outer cover and an inner cover, wherein the inner cover is arranged below the outer cover; a baking assembly, comprising a motor and a first fan blade, wherein the motor has a motor shaft, wherein the motor shaft comprises a shaft body and a sleeve sleeved on the shaft body, wherein the first fan blade is rotatably arranged below the inner cover, and wherein the motor shaft is drivingly connected to the first fan blade; a sealing assembly, comprising an elastic sealing ring and a positioning ring, wherein a through hole is arranged on the inner cover, wherein the elastic sealing ring is arranged at the through hole of the inner cover and is connected to the inner cover, and wherein the positioning ring is concentrically arranged on the elastic sealing ring; wherein the motor shaft passes through the inner hole of the positioning ring and the inner hole of the positioning ring, wherein the sleeve has a sealing section located above the elastic sealing ring, wherein the elastic sealing ring has an initial position separated from the sealing section and a sealing position floated to fit with the sealing section.

[0007] The technical solution of the utility model is applied, and the upper cover includes a cover body, a baking assembly and a sealing assembly. When the food needs to be baked and cooked, the motor shaft of the motor drives the first fan blade to rotate, and the first fan blade blows hot air to the food in the pot body. At this time, the elastic sealing ring is located at the initial position separated from the sealing section of the motor shaft, and the hole wall of the positioning ring is matched with the motor shaft gap, and the elastic sealing ring and the positioning ring will not affect the rotation of the motor shaft. When the food needs to be pressure-cooked, the pressure in the pot body gradually increases, and the elastic sealing ring floats from the initial position to the sealing position that fits the sealing section under the action of high-pressure steam. At this time, a closed cavity is formed between the pot body and the inner cover, which speeds up the cooking efficiency of the food. The above-mentioned sealing assembly is adopted, and by setting the positioning ring, the positioning ring has a better lubrication effect than the elastic seal, and will not hinder the rotation of the motor shaft. In addition, the positioning ring can position the relative position of the elastic sealing ring and the sleeve, and its positioning effect is better, so that the sealing assembly will not deviate from the sealing position.

[0008] Furthermore, the elastic sealing ring is provided with a receiving groove extending along its circumference, the outer edge of the positioning ring is embedded in the receiving groove, and the inner edge of the positioning ring protrudes inwardly from the inner edge of the elastic sealing ring. With the above structure, the positioning ring is positioned by using the receiving groove, which has the advantages of simple structure and easy installation.

[0009] Furthermore, an annular boss is provided on the upper surface of the elastic sealing ring, and when the elastic sealing ring is in the sealing position, the annular boss fits with the sealing section. The annular boss can improve the stability of the elastic sealing ring and the sealing section when they are in contact, thereby improving the sealing effect of the elastic sealing ring and the sealing section, and has the advantage of a simple structure.

[0010] Furthermore, the outer side wall of the elastic sealing ring is provided with a mounting groove extending along its circumference, and the inner cover is connected to the elastic sealing ring through the mounting groove. The mode of connecting the mounting groove to the inner cover has the advantages of simple structure and easy installation.

[0011] Furthermore, the elastic sealing ring includes an inner ring, an intermediate ring and an outer ring which are sequentially connected from the inside to the outside, the thickness of the intermediate ring is smaller than the thickness of the inner ring and the thickness of the outer ring, the positioning ring is arranged on the inner ring, the outer ring is connected to the inner cover, and the inner ring can fit with the sealing section. With the elastic sealing ring of the above structure, since the thickness of the intermediate ring is smaller than the thickness of the inner ring and the thickness of the outer ring, after being pressed upward in the pot body, the thinner intermediate ring can be used to facilitate the inner ring to move relative to the outer ring, thereby floating to the sealing position.

[0012] Furthermore, the positioning ring is made of polytetrafluoroethylene. The positioning ring made of the above material has the characteristics of high structural strength and excellent lubrication performance. While positioning the motor shaft, it will not hinder the rotation of the motor shaft; and / or the elastic sealing ring is made of silicone. The elastic sealing ring made of the above material has the advantage of being easy to deform.

[0013] Furthermore, the shaft sleeve also includes a positioning section, the sealing section is connected to the upper end of the positioning section, the diameter of the sealing section is larger than the diameter of the positioning section, and the outer wall of the positioning section is gap-matched with the inner edge of the positioning ring. The method of using the shaft sleeve to set the sealing section has the advantages of simple structure and easy processing.

[0014] Furthermore, the baking assembly further includes a second fan blade sleeved on the motor shaft, the second fan blade is located above the inner cover, a limit plate is sleeved on the motor shaft, and the second fan blade is sandwiched between the limit plate and the inner cover; and / or, the baking assembly further includes a heating element, the heating element is located below the first fan blade. The heating element can generate heat to heat the air, and the first fan blade is used to blow the heated air into the pot body to bake the food.

[0015] Furthermore, the upper cover also includes a pressure limiting valve and an exhaust pipe, the exhaust pipe is passed through the inner cover, and the pressure limiting valve is arranged at the upper end of the exhaust pipe. When pressure cooking is performed, the exhaust pipe is covered by the pressure limiting valve, and the upper cover is arranged on the pot body to form a closed chamber, thereby achieving pressure cooking of food. Thus, the cooking utensil has the advantage of one thing having multiple uses; and / or, the motor is arranged on the outer cover. The above structure has the advantages of simple structure and easy arrangement.

[0016] According to another aspect of the utility model, a cooking utensil is provided, the cooking utensil comprising: a pot body; an upper cover, the cover being arranged on the pot body, and the upper cover being the upper cover provided above. When the cooking utensil is applied, when the food needs to be baked and cooked, the elastic sealing ring is located at an initial position separated from the sealing section of the motor shaft, and the hole wall of the positioning ring is matched with the motor shaft clearance, and the elastic sealing ring and the positioning ring will not affect the rotation of the motor shaft. When the food needs to be pressure cooked, the elastic sealing ring floats from the initial position to a sealing position that fits the sealing section under the action of high-pressure steam. At this time, a closed cavity is formed between the pot body and the inner cover, which speeds up the cooking efficiency of the food. By adopting the above-mentioned sealing assembly, by setting the positioning ring, the positioning ring has a better lubrication effect than the elastic sealing member, and will not hinder the rotation of the motor shaft. In addition, the positioning ring can position the relative position of the elastic sealing ring and the sleeve, and its positioning effect is better, so that the sealing assembly will not deviate from the sealing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A cross-sectional view of an upper cover provided according to an embodiment of the utility model is shown;

[0019] Figure 2 Shows Figure 1 A partial enlarged view of the middle A;

[0020] Figure 3 An assembly diagram of a sealing assembly of an upper cover provided according to an embodiment of the utility model is shown;

[0021] Figure 4 An exploded view of an upper cover provided according to an embodiment of the utility model is shown;

[0022] Figure 5 A partial cross-sectional view of an upper cover provided according to an embodiment of the utility model is shown;

[0023] Figure 6 A front view of an upper cover provided according to an embodiment of the utility model is shown.

[0024] The above drawings include the following reference numerals:

[0025] 10. Cover body; 11. Outer cover; 12. Inner cover; 121. Cover teeth;

[0026] 20. baking assembly; 21. motor; 211. motor shaft; 213. shaft body; 214. shaft sleeve; 2141. positioning section; 2142. sealing section; 22. first fan blade; 23. second fan blade; 24. limiting plate;

[0027] 30. Sealing assembly; 31. Elastic sealing ring; 311. Accommodating groove; 312. Annular boss; 313. Mounting groove; 314. Inner ring; 315. Intermediate ring; 316. Outer ring; 32. Positioning ring;

[0028] 40. Exhaust pipe;

[0029] 50. Pressure limiting valve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] like Figures 1 to 6 As shown, the embodiment of the utility model provides an upper cover, which includes a cover body 10, a baking assembly 20 and a sealing assembly 30. The cover body 10 includes an outer cover 11 and an inner cover 12, and the inner cover 12 is arranged below the outer cover 11; the baking assembly 20 includes a motor 21 and a first fan blade 22, the motor 21 has a motor shaft 211, the motor shaft 211 includes a shaft body 213 and a shaft sleeve 214 sleeved on the shaft body 213, the first fan blade 22 is rotatably arranged below the inner cover 12, and the motor shaft 211 is drivingly connected to the first fan blade 22; the sealing assembly 30 includes an elastic sealing ring 31 and a positioning ring 32. A through hole is provided on the inner cover 12. The elastic sealing ring 31 is arranged at the through hole of the inner cover 12 and is connected to the inner cover 12. The positioning ring 32 is concentrically arranged on the elastic sealing ring 31. Among them, the motor shaft 211 is passed through the inner hole of the positioning ring 32 and the inner hole of the positioning ring 32. The sleeve 214 has a sealing section 2142 located above the elastic sealing ring 31. The elastic sealing ring 31 has an initial position separated from the sealing section 2142 and a sealing position floated to fit with the sealing section 2142.

[0032] The technical solution of the utility model is applied, and the upper cover includes a cover body 10, a baking assembly 20 and a sealing assembly 30. When the food needs to be baked and cooked, the motor shaft 211 of the motor 21 drives the first fan blade 22 to rotate, and the first fan blade 22 blows hot air to the food in the pot body. At this time, the elastic sealing ring 31 is located at an initial position separated from the sealing section 2142 of the motor shaft 211, and the hole wall of the positioning ring 32 is in clearance with the motor shaft 211, and the elastic sealing ring 31 and the positioning ring 32 will not affect the rotation of the motor shaft 211. When the food needs to be pressure-cooked, the pressure in the pot body gradually increases, and the elastic sealing ring 31 floats from the initial position to the sealing position that fits the sealing section 2142 under the action of high-pressure steam. At this time, a closed cavity is formed between the pot body and the inner cover 12, which speeds up the cooking efficiency of the food. The above-mentioned sealing assembly 30 is adopted, and by setting the positioning ring 32, the positioning ring 32 has a better lubrication effect than the elastic seal, and will not hinder the rotation of the motor shaft 211. Furthermore, the positioning ring 32 can position the relative positions of the elastic sealing ring 31 and the shaft sleeve 214, and its positioning effect is better, so that the sealing assembly 30 will not deviate from the sealing position.

[0033] Compared with providing an oil seal for sealing at the motor shaft 211, the sealing assembly 30 in this embodiment can reduce the rotation resistance of the motor shaft 211 while achieving sealing. Specifically, the motor shaft 211 is sealed with an oil seal, and when the motor shaft 211 rotates, the friction between the motor shaft 211 and the oil seal is relatively large, so that the resistance of the motor 21 is relatively large when it is working.

[0034] The inner cover 12 is provided with a cover tooth 121 .

[0035] In this embodiment, the motor shaft 211 passes through the inner hole of the elastic sealing ring 31 and the inner hole of the positioning ring 32 and extends to the bottom of the inner cover 12. The first fan blade 22 is sleeved on the motor shaft 211 and is detachably connected to the motor shaft 211. The first fan blade 22 is driven to rotate by the motor shaft 211.

[0036] The gap between the positioning ring 32 and the motor shaft 211 is between 0 and 0.10 mm.

[0037] like Figures 1 to 3 As shown, the elastic sealing ring 31 is provided with a receiving groove 311 extending along its circumference, the outer edge of the positioning ring 32 is embedded in the receiving groove 311, and the inner edge of the positioning ring 32 protrudes inwardly from the inner edge of the elastic sealing ring 31. With the above structure, the positioning ring 32 is positioned by using the receiving groove 311, which has the advantages of simple structure and easy installation.

[0038] The positioning ring 32 can be movably arranged in the receiving groove 311 so as to limit the positioning ring 32 by using the receiving groove 311 , or the positioning ring 32 can be fixed in the receiving groove 311 so as to move with the elastic sealing ring 31 .

[0039] It should be noted that the positioning ring 32 can also be configured as a ring-shaped or plate-shaped structure.

[0040] like Figure 2 and Figure 3 As shown, the upper surface of the elastic sealing ring 31 is provided with an annular boss 312, and when the elastic sealing ring 31 is in the sealing position, the annular boss 312 fits with the sealing section 2142. The annular boss 312 can improve the stability of the elastic sealing ring 31 and the sealing section 2142 when they are in contact, thereby improving the sealing effect of the elastic sealing ring 31 and the sealing section 2142, and has the advantage of a simple structure.

[0041] In this embodiment, in the baking cooking mode, the gap between the annular boss 312 and the sealing section 2142 is about 2 mm.

[0042] In other embodiments, an annular flange extending upward may be provided on the hole wall of the elastic sealing ring 31 , and the annular flange and the sealing section 2142 may be used to form a seal.

[0043] like Figure 1 and Figure 3 As shown, the outer wall of the elastic sealing ring 31 is provided with a mounting groove 313 extending along its circumferential direction, and the inner cover 12 is connected to the elastic sealing ring 31 through the mounting groove 313. The mode of connecting the mounting groove 313 with the inner cover 12 has the advantages of simple structure and easy installation.

[0044] like Figure 2 and Figure 3 As shown, the elastic sealing ring 31 includes an inner ring 314, an intermediate ring 315 and an outer ring 316 connected in sequence from the inside to the outside, the thickness of the intermediate ring 315 is smaller than the thickness of the inner ring 314 and the thickness of the outer ring 316, the positioning ring 32 is arranged on the inner ring 314, the outer ring 316 is connected to the inner cover 12, and the inner ring 314 can fit with the sealing section 2142. With the elastic sealing ring 31 of the above structure, since the thickness of the intermediate ring 315 is smaller than the thickness of the inner ring 314 and the thickness of the outer ring 316, after being pressed upward in the pot body, the thinner intermediate ring 315 can be used to facilitate the inner ring 314 to move relative to the outer ring 316, so as to float up to the sealing position.

[0045] In this embodiment, the diameter of the outer edge of the middle ring 315 is smaller than the diameter of the through hole, so that when the inner ring 314 moves relative to the outer ring 316 , the inner cover 12 will not affect the middle ring 315 .

[0046] The annular boss 312 is disposed on the upper surface of the inner ring 314 , the receiving groove 311 is disposed on the inner side wall of the inner ring 314 , and the mounting groove 313 is disposed on the outer side wall of the outer ring 316 .

[0047] Specifically, the positioning ring 32 is made of polytetrafluoroethylene. The positioning ring 32 made of the above material has the characteristics of high structural strength and excellent lubrication performance. While positioning the motor shaft 211, it will not hinder the rotation of the motor shaft 211.

[0048] In this embodiment, the elastic sealing ring 31 is made of silicone material. The elastic sealing ring 31 made of the above material has the advantage of being easy to deform.

[0049] like Figure 2 As shown, the shaft sleeve 214 further includes a positioning section 2141, the upper end of the positioning section 2141 is connected to the sealing section 2142, the diameter of the sealing section 2142 is larger than the diameter of the positioning section 2141, and the outer wall of the positioning section 2141 is gap-matched with the inner edge of the positioning ring 32. The method of using the shaft sleeve 214 to set the sealing section 2142 has the advantages of simple structure and easy processing.

[0050] like Figure 2 and Figure 4 As shown, the baking component 20 also includes a second fan blade 23 sleeved on the motor shaft 211, the second fan blade 23 is located above the inner cover 12, and a limit plate 24 is also sleeved on the motor shaft 211. The second fan blade 23 is clamped between the limit plate 24 and the inner cover 12. The second fan blade 23 can dissipate the heat of the motor 21 so that the motor 21 will not be damaged due to overheating.

[0051] In this embodiment, a sealing ring is provided at the lower end of the shaft sleeve 214 , and the sealing ring is used to seal the gap between the shaft sleeve 214 and the second fan blade 23 .

[0052] In this embodiment, the baking assembly 20 further includes a heating element, which is located below the first fan blade 22. The heating element can generate heat to heat the air, and the first fan blade 22 is used to blow the heated air into the pot to bake the food.

[0053] like Figure 1 As shown, the upper cover also includes a pressure limiting valve 50 and an exhaust pipe 40. The exhaust pipe 40 is provided through the inner cover 12, and the pressure limiting valve 50 is provided at the upper end of the exhaust pipe 40. When pressure cooking is performed, the exhaust pipe 40 is covered with the pressure limiting valve 50, and the upper cover is provided on the pot body to form a closed chamber, thereby achieving pressure cooking of food. Thus, the cooking utensil has the advantage of being one item with multiple uses.

[0054] In this embodiment, the motor 21 is arranged on the outer cover 11. The above structure has the advantages of simple structure and easy arrangement.

[0055] Another embodiment of the utility model provides a cooking utensil, the cooking utensil comprises a pot body and an upper cover, the upper cover is arranged on the pot body, and the upper cover is the upper cover provided above. When the cooking utensil is used, when the food needs to be baked and cooked, the elastic sealing ring 31 is located at an initial position separated from the sealing section 2142 of the motor shaft 211, and the hole wall of the positioning ring 32 is in clearance with the motor shaft 211, and the elastic sealing ring 31 and the positioning ring 32 will not affect the rotation of the motor shaft 211. When the food needs to be pressure cooked, the elastic sealing ring 31 floats from the initial position to a sealing position that fits the sealing section 2142 under the action of high-pressure steam. At this time, a closed cavity is formed between the pot body and the inner cover 12, which speeds up the cooking efficiency of the food. By adopting the above-mentioned sealing assembly 30, by setting the positioning ring 32, the positioning ring 32 has a better lubrication effect than the elastic seal and will not hinder the rotation of the motor shaft 211. Furthermore, the positioning ring 32 can position the relative positions of the elastic sealing ring 31 and the shaft sleeve 214, and its positioning effect is better, so that the sealing assembly 30 will not deviate from the sealing position.

[0056] The cooking utensil comprises an electric rice cooker or an electric pressure cooker or a multifunctional heating pot with the functions of baking, cooking and making dishes.

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0059] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0062] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cover, characterized in that: The upper cover comprises: A cover body (10) comprises an outer cover (11) and an inner cover (12), wherein the inner cover (12) is arranged below the outer cover (11); A baking assembly (20), comprising a motor (21) and a first fan blade (22), wherein the motor (21) has a motor shaft (211), wherein the motor shaft (211) comprises a shaft body (213) and a shaft sleeve (214) sleeved on the shaft body (213), wherein the first fan blade (22) is rotatably arranged below the inner cover (12), and wherein the motor shaft (211) is drivingly connected to the first fan blade (22); A sealing assembly (30) comprising an elastic sealing ring (31) and a positioning ring (32), wherein the inner cover (12) is provided with a through hole, the elastic sealing ring (31) is arranged at the through hole of the inner cover (12) and connected to the inner cover (12), and the positioning ring (32) is concentrically arranged on the elastic sealing ring (31); The motor shaft (211) is inserted into the inner hole of the positioning ring (32) and the inner hole of the positioning ring (32); the shaft sleeve (214) has a sealing section (2142) located above the elastic sealing ring (31); the elastic sealing ring (31) has an initial position separated from the sealing section (2142) and a sealing position floated to fit with the sealing section (2142).

2. The upper cover according to claim 1, characterized in that: The elastic sealing ring (31) is provided with a receiving groove (311) extending along its circumference, the outer edge of the positioning ring (32) is embedded in the receiving groove (311), and the inner edge of the positioning ring (32) protrudes inwardly from the inner edge of the elastic sealing ring (31).

3. The upper cover according to claim 1, characterized in that: An annular boss (312) is provided on the upper surface of the elastic sealing ring (31); when the elastic sealing ring (31) is located at the sealing position, the annular boss (312) fits the sealing section (2142).

4. The upper cover according to claim 1, characterized in that: The outer side wall of the elastic sealing ring (31) is provided with a mounting groove (313) extending along its circumference, and the inner cover (12) is connected to the elastic sealing ring (31) via the mounting groove (313).

5. The upper cover according to claim 1, characterized in that: The elastic sealing ring (31) comprises an inner ring (314), an intermediate ring (315) and an outer ring (316) which are connected in sequence from the inside to the outside, the thickness of the intermediate ring (315) is smaller than the thickness of the inner ring (314) and the thickness of the outer ring (316), the positioning ring (32) is arranged on the inner ring (314), the outer ring (316) is connected to the inner cover (12), and the inner ring (314) can fit with the sealing section (2142).

6. The upper cover according to claim 1, characterized in that: The positioning ring (32) is made of polytetrafluoroethylene; and / or, The elastic sealing ring (31) is made of silicone material.

7. The upper cover according to claim 1, characterized in that: The shaft sleeve (214) further comprises a positioning section (2141), the upper end of which is connected to the sealing section (2142), the diameter of the sealing section (2142) being larger than the diameter of the positioning section (2141), and the outer wall of the positioning section (2141) being gap-matched with the inner edge of the positioning ring (32).

8. The upper cover according to claim 1, characterized in that: The baking assembly (20) further comprises a second fan blade (23) sleeved on the motor shaft (211), the second fan blade (23) being located above the inner cover (12), a limiting plate (24) being sleeved on the motor shaft (211), the second fan blade (23) being sandwiched between the limiting plate (24) and the inner cover (12); and / or, The baking assembly (20) further comprises a heating element, wherein the heating element is located below the first fan blade (22).

9. The upper cover according to claim 1, characterized in that: The upper cover further comprises a pressure limiting valve (50) and an exhaust pipe (40), the exhaust pipe (40) being arranged through the inner cover (12), and the pressure limiting valve (50) being arranged at the upper end of the exhaust pipe (40); and / or, The motor (21) is arranged on the outer cover (11).

10. A cooking utensil, characterized in that: The cooking appliance comprises: Pot body; An upper cover is arranged on the pot body, and the upper cover is the upper cover according to any one of claims 1 to 9.

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