Cover body assembly and cooking utensil with same

Abstract

The utility model provides a cover body assembly and a cooking utensil with the cover body assembly, and the cover body assembly comprises an upper cover, a lower cover and a cover body, the inner cover is rotatably arranged below the upper cover, and the inner cover comprises a cover body and an exhaust structure penetrating through the cover body; the sealing rotary disc is arranged between the upper cover and the inner cover and can synchronously rotate along with the inner cover, the sealing rotary disc comprises a sealing piece and a supporting disc body, the supporting disc body is supported below the sealing piece, the exhaust structure penetrates through the sealing piece and the supporting disc body and is in sealing fit with the sealing piece, and the sealing piece is provided with a sealing convex ring; the upper surface of the sealing convex ring abuts against the upper cover for sealing, and the lower surface of the sealing convex ring and the supporting disc body are arranged at intervals. According to the technical scheme, the problem that in the related technology, the sealing effect of a sealing piece is poor can be effectively solved.

Description

Technical Field

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

[0002] In the related art, by eccentrically arranging the pressure limiting valve structure on the cover body assembly, a relatively large area above the cover body assembly close to the user can be vacated to arrange the control panel. Compared with the scheme of arranging the control panel on the side of the cooking appliance, arranging the control panel on the upper surface of the cover body assembly can facilitate the operation of the user.

[0003] However, after the pressure limiting valve structure is eccentrically arranged, the pressure limiting valve will rotate together with the inner cover, that is, the pressure limiting valve structure will move in an arc relative to the upper cover. In order to prevent the steam and condensed water discharged by the pressure limiting valve structure from entering the space between the upper cover and the inner cover, a seal can be arranged between the installation structure of the pressure limiting valve structure and the upper cover to block the water vapor. However, the sealing effect of the existing seal is not good, and gaps are easily generated between the seal and the upper cover, so that the water vapor enters the space between the upper cover and the inner cover. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a cover body assembly and a cooking appliance having the same, so as to solve the problem of poor sealing effect of the seal in the related art.

[0005] To achieve the above object, according to one aspect of the utility model, a cover body assembly is provided, including: an upper cover having an exhaust port; an inner cover rotatably arranged below the upper cover, the inner cover including a cover body and an exhaust structure penetrating through the cover body; a sealing turntable arranged between the upper cover and the inner cover and capable of rotating synchronously with the inner cover, the sealing turntable including a sealing piece and a supporting disc body, the supporting disc body supporting below the sealing piece, the exhaust structure penetrating through the sealing piece and the supporting disc body and sealingly cooperating with the sealing piece, the sealing piece having a sealing convex ring, the upper surface of the sealing convex ring abutting and sealing with the upper cover, and the lower surface of the sealing convex ring being spaced from the supporting disc body.

[0006] Applying the technical solution of the present utility model, a sealing turntable is used to replace the seal in the related art. The sealing turntable includes a sealing piece for sealing with the exhaust structure and the upper cover, and a supporting disc body supported below the sealing piece. The supporting disc body supports the sealing piece, facilitating the installation and fixation of the sealing turntable, enabling the sealing piece to maintain its corresponding position to achieve a sealing fit with the exhaust structure and the upper cover. The sealing piece has a sealing convex ring, the upper surface of the sealing convex ring abuts and seals with the upper cover, and the sealing convex ring is spaced from the supporting disc body, enabling the sealing convex ring to have a certain ability of elastic deformation. In this way, a larger extrusion amount can be achieved between the sealing convex ring and the upper cover, ensuring the sealing effect while compensating for the machining errors of the upper cover and the machining and installation errors of the sealing turntable itself. At the same time, since the sealing convex ring can deform after being extruded, the resistance between the two is relatively small when the sealing turntable rotates relative to the upper cover. Therefore, the sealing effect of the seal in the related art can be effectively solved under the premise of ensuring the user's feeling of opening and closing the cover.

[0007] Further, a first annular support rib is provided on the supporting disc body, and the sealing convex ring covers the first annular support rib. The first annular support rib is located below the sealing convex ring and can position the sealing convex ring in the lateral direction.

[0008] Further, there are multiple first annular support ribs, and the multiple first annular support ribs are nested. Setting multiple first annular support ribs can make the width of the first annular support rib smaller, avoiding shrinkage during the machining process and ensuring the positioning effect of the sealing convex ring in the lateral direction.

[0009] Further, there is a deformation interval between the lower surface of the sealing convex ring and the upper surface of the first annular support rib, and the deformation interval is between 0.5 mm and 2.5 mm; and / or, the thickness of the sealing convex ring is between 1.5 mm and 3.5 mm. The deformation interval and the thickness of the sealing convex ring are respectively within the above ranges, which can balance the deformation ability and structural strength of the sealing convex ring, enabling the sealing convex ring to deform after being extruded to reduce the rotation resistance, and at the same time ensuring the tight fit with the upper cover.

[0010] Further, the sealing piece further includes a second annular support rib provided below the sealing convex ring, and the second annular support rib supports between the sealing convex ring and the supporting disc body. By providing the second annular support rib, elastic support for the top wall of the sealing convex ring is realized, which can balance the deformation ability and structural strength of the sealing convex ring.

[0011] Further, the sealing turntable further includes a pressing plate, and the sealing piece is clamped between the supporting disc body and the pressing plate. The sealing piece is pressed on the supporting disc body by the pressing plate to realize the fixed connection between the sealing piece and the supporting disc body, which has the advantages of simple structure and good fixing effect.

[0012] Furthermore, the sealing piece has a connecting edge located outside the sealing convex ring. The pressing plate is in a ring plate structure and is located above the connecting edge. The connecting edge is clamped between the ring plate structure and the supporting disc body. The above arrangement ensures the structural stability of the overall sealing turntable, and at the same time further ensures the position of the sealing convex ring in the transverse direction, further ensuring the sealing effect.

[0013] Furthermore, the sealing turntable further includes a fastener passing through the ring plate structure, the connecting edge and the supporting disc body; and / or, a first positioning post is provided below the ring plate structure, a first positioning hole is provided on the connecting edge, a second positioning hole is provided on the supporting disc body, and the first positioning post passes through the first positioning hole and the second positioning hole. Alternatively, a second positioning post is provided above the supporting disc body, a third positioning hole is provided on the connecting edge, and a fourth positioning hole is provided on the ring plate structure, and the second positioning post passes through the third positioning hole and the fourth positioning hole. The fixed connection between the sealing piece, the supporting disc body and the pressing plate is realized through the fastener, which has the advantages of simple structure and reliable connection. By providing the positioning posts and positioning holes, the positioning of the three can be carried out first before the fixed connection of the sealing piece, the supporting disc body and the pressing plate, simplifying the fixed connection operation.

[0014] Furthermore, the inner cover has a closed cover position and an open cover position. When the inner cover is in the closed cover position, the sealing turntable is in the first position. When the inner cover is in the open cover position, the sealing turntable is in the second position. An annular sealing rib is provided on the upper cover. When the sealing turntable is in the first position and the second position, the annular sealing rib abuts against the sealing convex ring. By providing the annular sealing rib on the upper cover, the contact area between the upper cover and the sealing convex ring can be reduced, thereby reducing the resistance during the rotation of the sealing turntable.

[0015] Furthermore, a notch is provided on the upper cover and a cover is provided on the notch in an openable and closable manner. The notch is located inside the annular sealing rib, and the exhaust port is formed on the cover; and / or, the cover assembly further includes a mounting seat connected below the upper cover. The sealing turntable is clamped between the mounting seat and the upper cover and can move relative to the upper cover and the mounting seat. After cooking is completed, the user can remove the cover and clean the condensed water and food residues on the sealing turntable through the notch. The mounting seat and the upper cover can form a limit on the sealing turntable in the up and down direction, so that the sealing turntable can only move in the transverse direction, thereby ensuring the sealing effect between the sealing turntable and the upper cover.

[0016] According to another aspect of the present invention, a cooking appliance is provided, including a cover assembly, wherein the cover assembly is the above-mentioned cover assembly. The above-mentioned cover assembly can effectively solve the problem of poor sealing effect of the sealing member in the related art, and the cooking appliance having the above-mentioned cover assembly also has the above-mentioned advantages. Description of the Drawings

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0018] Figure 1 A schematic exploded view of an embodiment of a cover assembly according to the present utility model is shown;

[0019] Figure 2 shows Figure 1 A cross-sectional schematic view of a partial structure of the cover assembly of

[0020] Figure 3 shows Figure 1 A schematic exploded view of a sealing turntable of the cover assembly of

[0021] Figure 4 shows Figure 3 An enlarged view of portion A of the sealing turntable of

[0022] Figure 5 shows Figure 3 An enlarged view of portion B of the sealing turntable of

[0023] Figure 6 shows Figure 3 A three-dimensional schematic view of the sealing turntable of

[0024] Figure 7 shows Figure 6 An enlarged view of portion C of the sealing turntable of

[0025] Among them, the above-mentioned drawings include the following reference numerals:

[0026] 10. Upper cover; 101. Face cover; 102. Inner lining; 12. Annular sealing rib; 13. Notch; 14. Cover; 15. Avoidance opening;

[0027] 20. Inner cover; 21. Cover body; 22. Exhaust structure;

[0028] 30. Sealing turntable; 31. Sealing sheet; 311. Sealing convex ring; 313. Connecting edge; 314. First positioning hole; 32. Support disc body; 321. First annular support rib; 322. Second positioning hole; 323. Connecting rib; 33. Pressing plate; 331. First positioning post; 34. Fastening piece;

[0029] 40. Mounting seat;

[0030] L1. Deformation interval; T1. Thickness of the sealing convex ring. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way limits the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] 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 "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] In the related art, there are certain machining errors in the upper cover. And in order to ensure the feel of the user when controlling the rotation of the inner cover to open and close the cover, the sealing fit between the upper cover and the seal is generally not set too tight. This makes it easy to generate a gap between the seal and the upper cover during use, allowing water vapor to enter the space between the upper cover and the inner cover, resulting in poor sealing effect.

[0035] Such as Figure 1 and Figure 2As shown in the figure, to solve the above technical problems, the present application provides a cover assembly. An embodiment of the cover assembly of the present application includes: an upper cover 10, an inner cover 20, and a sealing turntable 30. Among them, the upper cover 10 has an exhaust port; the inner cover 20 is rotatably arranged below the upper cover 10, and the inner cover 20 includes a cover body 21 and an exhaust structure 22 penetrating through the cover body 21; the sealing turntable 30 is arranged between the upper cover 10 and the inner cover 20 and can rotate synchronously with the inner cover 20. The sealing turntable 30 includes a sealing piece 31 and a support disk body 32. The support disk body 32 supports below the sealing piece 31. The exhaust structure 22 penetrates through the sealing piece 31 and the support disk body 32 and is in sealing cooperation with the sealing piece 31. The sealing piece 31 has a sealing convex ring 311. The upper surface of the sealing convex ring 311 abuts and seals against the upper cover 10, and the lower surface of the sealing convex ring 311 is spaced from the support disk body 32.

[0036] Applying the technical solution of this embodiment, the sealing turntable 30 is used to replace the seal in the related art. The sealing turntable 30 includes a sealing piece 31 for sealing with the exhaust structure 22 and the upper cover 10 and a support disk body 32 supporting below the sealing piece 31. The support disk body 32 supports the sealing piece 31, which is convenient for installing and fixing the sealing turntable 30, so that the sealing piece 31 can be kept in the corresponding position to achieve the sealing cooperation with the exhaust structure 22 and the upper cover 10. The sealing piece 31 has a sealing convex ring 311. The upper surface of the sealing convex ring 311 abuts and seals against the upper cover 10, and the sealing convex ring 311 is spaced from the support disk body 32, so that the sealing convex ring 311 has a certain ability of elastic deformation. In this way, a larger extrusion amount can be provided between the sealing convex ring 311 and the upper cover 10 to ensure the sealing effect while compensating for the machining error of the upper cover 10 and the machining and installation errors of the sealing turntable 30 itself. At the same time, since the sealing convex ring 311 can deform after being extruded, the resistance between the two is smaller when the sealing turntable 30 rotates relative to the upper cover 10. Furthermore, the sealing effect is ensured on the premise of ensuring the user's feeling of opening and closing the cover. Therefore, the technical solution of this embodiment can effectively solve the problem of poor sealing effect of the seal in the related art.

[0037] Specifically, in this embodiment, the sealing piece 31 is a flexible structure (for example: it can be made of materials such as silica gel or rubber), and the support disk body 32 is a rigid structure. The setting of the sealing convex ring 311 makes a concave water storage space formed in the middle of the sealing piece 31. In this way, condensed water and food residues and other dirt can be stored in this water storage space, reducing the residue on the upper surface of the sealing convex ring 311 and avoiding the influence of condensed water and food residues and other dirt on the rotation and sealing between the sealing convex ring 311 and the upper cover 10.

[0038] Such as Figure 2 、 Figure 3 and Figure 5As shown, a first annular support rib 321 is provided on the support disk body 32, and the sealing convex ring 311 covers the first annular support rib 321. The first annular support rib 321 is located below the sealing convex ring 311 and can position the sealing convex ring 311 in the lateral direction.

[0039] As Figure 2 , Figure 3 and Figure 5 shown, there are multiple first annular support ribs 321, and the multiple first annular support ribs 321 are nested. Since the sealing turntable 30 needs to rotate, in order to ensure the sealing effect with the upper cover 10, the sealing convex ring 311 needs to have a certain width. Setting multiple first annular support ribs 321 can make the width of a single first annular support rib 321 smaller, avoid shrinkage during the processing, and at the same time ensure the positioning effect of the sealing convex ring 311 in the lateral direction.

[0040] It should be noted that the above "multiple" refers to two or more. As Figure 5 shown, in this embodiment, the number of the first annular support ribs 321 is two, and multiple connecting ribs 323 are provided between the two first annular support ribs 321.

[0041] As Figure 2 shown, there is a deformation interval L1 between the lower surface of the sealing convex ring 311 and the upper surface of the first annular support rib 321, and the deformation interval L1 is between 0.5 mm and 2.5 mm. When the deformation interval L1 is within the above range, it can take into account the deformation ability and structural strength of the sealing convex ring 311, so that it can deform after being squeezed to reduce the rotation resistance, and at the same time ensure the tight fit with the upper cover 10. Preferably, the deformation interval L1 can be 0.5 mm, 1 mm, 1.5 mm, 2 mm or 2.5 mm.

[0042] As Figure 2 shown, the thickness T1 of the sealing convex ring 311 is between 1.5 mm and 3.5 mm. When the thickness T1 of the sealing convex ring 311 is within the above range, it can take into account the deformation ability and structural strength of the sealing convex ring 311, so that it can deform after being squeezed to reduce the rotation resistance, and at the same time ensure the tight fit with the upper cover 10; in addition, setting the thickness T1 of the sealing convex ring 311 to be relatively thick gives the sealing convex ring 311 a certain wear allowance and ensures the service life of the sealing turntable 30. Preferably, the thickness T1 of the sealing convex ring 311 can be 1.5 mm, 2 mm, 2.5 mm, 3 mm or 3.5 mm.

[0043] In order to further reduce the rotation resistance between the sealing convex ring 311 and the upper cover 10 and reduce the wear of the sealing convex ring 311, the upper surface of the sealing convex ring 311 can be polished and / or sprayed with oil.

[0044] Further, the sealing piece 31 further includes a second annular support rib disposed below the sealing convex ring 311, and the second annular support rib supports between the sealing convex ring 311 and the support disc body 32. By providing the second annular support rib, elastic support for the top wall of the sealing convex ring 311 is achieved, and the deformation ability and structural strength of the sealing convex ring 311 can be taken into account. Preferably, the second annular support rib can be an annular structure formed by grid-shaped ribs.

[0045] As Figure 2 and Figure 3 shown, the sealing turntable 30 further includes a pressing plate 33, and the sealing piece 31 is clamped between the support disc body 32 and the pressing plate 33. The sealing piece 31 is pressed on the support disc body 32 through the pressing plate 33 to realize the fixed connection between the sealing piece 31 and the support disc body 32, which has the advantages of simple structure and good fixing effect.

[0046] As Figures 3 to 5 shown, the sealing piece 31 has a connecting edge 313 located outside the sealing convex ring 311, the pressing plate 33 is a ring plate structure and is located above the connecting edge 313, and the connecting edge 313 is clamped between the ring plate structure and the support disc body 32. The connecting edge 313 is arranged outside the sealing convex ring 311 and is pressed between the pressing plate 33 and the support disc body 32, which ensures the overall structural stability of the sealing turntable 30, and at the same time further ensures the position of the sealing convex ring 311 in the transverse direction, further ensuring the sealing effect.

[0047] In this embodiment, the pressing plate 33 is disposed above the sealing piece 31 and the support disc body 32. In an embodiment not shown in the figure, the pressing plate can also be disposed below the sealing piece and the support disc body. At this time, a slot with an inward opening can be provided at the lower end of the sealing piece, the edge of the support disc body is inserted into the slot, and the pressing plate is disposed below the support disc body and jointly clamps the lower side wall of the slot with the support disc body to realize the fixation of the sealing piece.

[0048] As Figure 3 and Figures 5 to 7 shown, the sealing turntable 30 further includes a fastener 34 passing through the ring plate structure, the connecting edge 313 and the support disc body 32. Specifically, the fastener 34 can be a screw structure, and the fixed connection between the sealing piece 31, the support disc body 32 and the pressing plate 33 is realized through the fastener 34, which has the advantages of simple structure and reliable connection.

[0049] As Figures 3 to 6As shown, a first positioning post 331 is provided below the ring plate structure, a first positioning hole 314 is provided on the connecting edge 313, a second positioning hole 322 is provided on the support disc body 32, and the first positioning post 331 passes through the first positioning hole 314 and the second positioning hole 322. By providing the first positioning post 331, the first positioning hole 314 and the second positioning hole 322, the positioning of the sealing piece 31, the support disc body 32 and the pressing plate 33 can be carried out first before their fixed connection, simplifying the fixed connection operation.

[0050] Of course, in an embodiment not shown in the figure, the positioning post can also be provided on the support disc body. Specifically, a second positioning post is provided above the support disc body, a third positioning hole is provided on the connecting edge, and a fourth positioning hole is provided on the ring plate structure. The second positioning post passes through the third positioning hole and the fourth positioning hole.

[0051] In this embodiment, the inner lid 20 has a closed lid position and an open lid position. When the inner lid 20 is in the closed lid position, the sealing turntable 30 is in the first position. When the inner lid 20 is in the open lid position, the sealing turntable 30 is in the second position. An annular sealing rib 12 is provided on the upper lid 10. When the sealing turntable 30 is in the first position and the second position, the annular sealing rib 12 abuts and cooperates with the sealing convex ring 311. By providing the annular sealing rib 12 on the upper lid 10, the contact area between the upper lid 10 and the sealing convex ring 311 can be reduced, thereby reducing the resistance during the rotation of the sealing turntable 30.

[0052] Specifically, when the inner lid 20 is in the closed lid position, making the annular sealing rib 12 seal with the sealing convex ring 311 can prevent the steam generated during cooking from entering the space between the inner lid 20 and the upper lid 10; when the inner lid 20 is in the open lid position, making the annular sealing rib 12 seal with the sealing convex ring 311 can prevent the condensed water in the sealing turntable 30 from entering the space between the inner lid 20 and the upper lid 10 during the process of the user flipping and opening the lid or moving the lid assembly.

[0053] As Figure 1 shown, a notch 13 is provided on the upper lid 10 and a cover 14 that can be opened and closed is provided to cover the notch 13. The notch 13 is located inside the annular sealing rib 12, and an exhaust port is formed on the cover 14. After cooking is completed, the user can remove the cover 14 and clean the condensed water and food residues on the sealing turntable 30 through the notch 13.

[0054] In this embodiment, by arranging the rotating structure (specifically the sealing turntable 30) inside the lid assembly, the cover 14 remains stationary relative to the upper lid 10 and does not rotate together with the inner lid 20, so that the overall appearance of the lid assembly is relatively complete and beautiful, and the user experience is better.

[0055] AsFigure 1 and Figure 2 As shown in Figure 2 , the cover body assembly further includes a mounting base 40 connected below the upper cover 10. The sealing turntable 30 is clamped between the mounting base 40 and the upper cover 10 and can move relative to the upper cover 10 and the mounting base 40. Specifically, the mounting base 40 and the upper cover 10 can limit the sealing turntable 30 in the up and down direction, so that the sealing turntable 30 can only move in the horizontal direction, thereby ensuring the sealing effect between the sealing turntable 30 and the upper cover 10.

[0056] During the upward pressing process, the inner cover 20 will float under the pressure in the cooking cavity, and the exhaust structure 22 will also float. The sealing piece 31 can move up and down to a certain extent, and the support disc body 32 remains stationary.

[0057] As Figure 1 and Figure 2 shown, the upper cover 10 includes a face cover 101 and a lining 102 arranged below the face cover 101. Among them, a notch 13 is formed on the face cover 101, and an annular sealing rib 12 is formed on the lower surface of the face cover 101 and located at the notch 13. The mounting base 40 is mounted on the face cover 101. An avoidance opening 15 for avoiding the exhaust structure 22 is provided on the lining 102 to avoid interfering with the rotation of the exhaust structure 22.

[0058] Specifically, in this embodiment, the exhaust pipe of the exhaust structure 22 is fixedly connected to the cover body 21. When the cover body 21 rotates, the exhaust structure 22 rotates synchronously with it and drives the sealing turntable 30 to rotate together, thereby realizing the synchronous rotation of the sealing turntable 30 and the inner cover 20.

[0059] This application also provides a cooking appliance, including a cover body assembly, wherein the cover body assembly is the above-mentioned cover body assembly. The above-mentioned cover body assembly can effectively solve the problem of poor sealing effect of the seal in the related art, and the cooking appliance with the above-mentioned cover body assembly also has the above-mentioned advantages.

[0060] Specifically, in this embodiment, the cooking appliance is a pressure cooking appliance. Of course, in an embodiment not shown in the figure, the cooking appliance can also be products such as an electric rice cooker, a low-pressure rice cooker, a soymilk machine, a food processor, a stir-fry machine, an electric slow cooker, a multi-functional pot, etc.

[0061] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary explanation, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0062] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the drawings for the device. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0063] In addition, it should be noted that using words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0064] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cover assembly, characterized in that: include: An upper cover (10) having an exhaust port; An inner cover (20) is rotatably disposed below the upper cover (10), and the inner cover (20) comprises a cover body (21) and an exhaust structure (22) penetrating the cover body (21); A sealing turntable (30) is arranged between the upper cover (10) and the inner cover (20) and can rotate synchronously with the inner cover (20). The sealing turntable (30) comprises a sealing sheet (31) and a supporting plate body (32). The supporting plate body (32) is supported below the sealing sheet (31). The exhaust structure (22) is penetrated through the sealing sheet (31) and the supporting plate body (32) and is sealed with the sealing sheet (31). The sealing sheet (31) has a sealing convex ring (311). The upper surface of the sealing convex ring (311) is sealed against the upper cover (10), and the lower surface of the sealing convex ring (311) is spaced apart from the supporting plate body (32).

2. The cover assembly according to claim 1, characterized in that: The support disc body (32) is provided with a first annular support rib (321), and the sealing convex ring (311) is provided above the first annular support rib (321).

3. The cover assembly according to claim 2, characterized in that: There are a plurality of the first annular support ribs (321), and the plurality of the first annular support ribs (321) are nested.

4. The cover assembly according to claim 2, characterized in that: A deformation interval (L1) is provided between the lower surface of the sealing convex ring (311) and the upper surface of the first annular supporting rib (321), and the deformation interval (L1) is between 0.5 mm and 2.5 mm; and / or, The thickness (T1) of the sealing protruding ring (311) is between 1.5 mm and 3.5 mm.

5. The cover assembly according to any one of claims 1 to 4, characterized in that: The sealing sheet (31) further comprises a second annular support rib arranged below the sealing convex ring (311), wherein the second annular support rib is supported between the sealing convex ring (311) and the support disc body (32).

6. The cover assembly according to any one of claims 1 to 4, characterized in that: The sealing rotary disc (30) further comprises a pressing plate (33), and the sealing sheet (31) is sandwiched between the supporting disc body (32) and the pressing plate (33).

7. The cover assembly according to claim 6, characterized in that: The sealing sheet (31) has a connecting edge (313) located outside the sealing convex ring (311), the pressure plate (33) is a ring plate structure and is located above the connecting edge (313), and the connecting edge (313) is sandwiched between the ring plate structure and the supporting disc body (32).

8. The cover assembly according to claim 7, characterized in that: The sealing rotary disk (30) further comprises a fastener (34) penetrating the annular plate structure, the connecting edge (313) and the supporting disk body (32); and / or, A first positioning column (331) is arranged below the ring plate structure, a first positioning hole (314) is arranged on the connecting edge (313), a second positioning hole (322) is arranged on the supporting disc body (32), and the first positioning column (331) is passed through the first positioning hole (314) and the second positioning hole (322); alternatively, a second positioning column is arranged above the supporting disc body, a third positioning hole is arranged on the connecting edge, a fourth positioning hole is arranged on the ring plate structure, and the second positioning column is passed through the third positioning hole and the fourth positioning hole.

9. The cover assembly according to any one of claims 1 to 4, characterized in that: The inner cover (20) has a closing position and an opening position. When the inner cover (20) is located at the closing position, the sealing turntable (30) is located at a first position. When the inner cover (20) is located at the opening position, the sealing turntable (30) is located at a second position. An annular sealing rib (12) is provided on the upper cover (10). When the sealing turntable (30) is located at the first position and the second position, the annular sealing rib (12) abuts against the sealing convex ring (311).

10. The cover assembly according to claim 9, characterized in that: The upper cover (10) is provided with a notch (13) and a cover (14) which is openably and closably arranged to cover the notch (13), the notch (13) being located on the inner side of the annular sealing rib (12), and the exhaust port being formed on the cover (14); and / or, The cover assembly further comprises a mounting seat (40) connected below the upper cover (10); the sealing turntable (30) is clamped between the mounting seat (40) and the upper cover (10) and is movable relative to the upper cover (10) and the mounting seat (40).

11. A cooking utensil, comprising a cover assembly, characterized in that: The cover assembly is the cover assembly according to any one of claims 1 to 10.

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