Cover plate, detachable cover assembly, cover body and cooking utensil

Abstract

The utility model discloses a cover plate, a detachable cover assembly, a cover body and a cooking utensil. The cover plate includes an edge portion and a central portion. The edge part is used for installing a sealing ring. The central part is located on the inner side of the edge part in the radial direction, the periphery of the central part is connected to the edge part, at least one tension enhancing part protruding downwards and arranged at intervals in the radial direction is constructed on the lower surface of the central part, and each tension enhancing part extends by a circle in the circumferential direction of the central part; the tension enhancing part is used for being located above a turnup of an opening of the cooking container when the cover plate covers the cooking container so as to increase the surface tension of condensate water in a gap between the cover plate and the turnup. According to the cover plate provided by the utility model, the condensate water between the cover plate and the turnup of the cooking container is sealed, and the tension enhancing part protrudes downwards by a proper size from the lower surface of the cover plate, so that the surface tension of the condensate water is increased, the air pressure resistance of the condensate water is improved, and the sealing reliability between the cover plate and the cooking container is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking utensils, in particular to a cover plate, a detachable cover assembly, a cover body and a cooking utensil. Background Art

[0002] In cooking utensils, the lid is usually equipped with a sealing ring for sealing against the inner pot. However, due to processing, installation, deformation of the sealing ring, or damage to the sealing ring, the sealing ring may not always contact the pot mouth at every position around the entire circumference, resulting in sealing failure.

[0003] Therefore, a cover plate, a detachable cover assembly, a cover body and a cooking utensil are needed to at least partially solve the above problems. Utility Model Content

[0004] The Summary of the Utility Model introduces a series of simplified concepts that will be further described in the Detailed Description of the Utility Model. The Summary of the Utility Model of the Utility Model does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0005] To at least partially address the above-mentioned problems, the present invention provides, in a first aspect, a cover plate for a cover body of a cooking utensil, wherein the cooking utensil comprises a cooking container, wherein the opening of the cooking container is configured with a flange bent radially outward, and the cover plate is used to cover the opening of the cooking container, and comprises:

[0006] an edge portion, the edge portion being the outermost portion of the cover plate in a radial direction and being used for mounting a sealing ring;

[0007] The central portion is located on the inner side of the edge portion in the radial direction, the outer periphery of the central portion is connected to the edge portion, and the lower surface of the central portion is constructed with at least one downwardly protruding tension enhancement portion arranged at intervals in the radial direction, each of the tension enhancement portions extending for a circle along the circumferential direction of the central portion, and the tension enhancement portion is used to be located above the flange when the cover plate covers the opening of the cooking container, so as to increase the surface tension of condensed water in the gap between the cover plate and the flange.

[0008] The cover plate of the present invention provides a gap between the cover plate and the flange of the cooking container. Condensed water can be retained in this gap due to surface tension, thereby sealing the gap. A tension-enhancing portion protrudes downward from the lower surface of the cover plate, further reducing the size of the gap and increasing the surface tension of the condensed water. This increased surface tension of the condensed water improves its resistance to air pressure, thereby enhancing the seal reliability between the cover plate and the cooking container. The tension-enhancing portion also increases the surface area of the gap, facilitating the retention of condensed water.

[0009] Optionally, the downward protrusion dimension of the tension enhancement portion is 0.5mm-1mm.

[0010] According to the cover plate of the present invention, the tension enhancement portion is protruded downward by an appropriate size according to the normal size of the gap between the cover plate and the flange, so that the condensed water in the gap has a larger surface tension.

[0011] Optionally, each of the tension enhancement portions has a periodic distribution along the circumferential direction.

[0012] According to the cover plate of the utility model, the tension reinforcement part is simple in design and easy to process.

[0013] Optionally, each of the tension enhancement portions is annular.

[0014] According to the cover plate of the utility model, the tension reinforcement part is simple in design and easy to manufacture.

[0015] Optionally, the tension enhancement portion has a concave-convex structure along the circumferential direction, and the concave-convex structure is configured to be concave-convex in the radial direction, so that the distance between the inner point or outer point of the tension enhancement portion and the axial center of the tension enhancement portion is different at different circumferential positions.

[0016] According to the cover plate of the present invention, the tension-enhancing portion has a tortuous periphery, a larger surface area, or a longer total length, thereby achieving a better effect of retaining condensed water between the gaps.

[0017] Optionally, the tension reinforcement portion is configured in an S-shape, a square wave shape, a trapezoidal wave shape, or a triangular wave shape extending in the circumferential direction.

[0018] According to the cover plate of the utility model, the tension reinforcement part is simple in design and easy to process.

[0019] Optionally, the tension enhancement portion includes:

[0020] an annular portion extending in a circular ring along a circumferential direction of the central portion; and

[0021] At least one protruding portion is connected to the annular portion and protrudes radially outward or inward from the annular portion.

[0022] According to the cover plate of the present invention, a protruding portion is manufactured on the inner side or the outer side of the circular ring to increase the surface area of the gap.

[0023] Optionally, the protruding portion is square or T-shaped.

[0024] According to the cover plate of the utility model, the protruding portion is simple in design and easy to process.

[0025] Optionally, the lower surface of the central portion is configured with at least two tension enhancement portions, and at the same circumferential position, the concave-convex structures of at least two adjacent tension enhancement portions extend in the same direction along the radial direction.

[0026] Optionally, the lower surface of the central portion is configured with at least two tension enhancement portions, and at the same circumferential position, the concave-convex structures of at least two adjacent tension enhancement portions extend in opposite directions along the radial direction.

[0027] According to the cover plate of the present invention, the tension reinforcing part enables the gap between the cover plate and the flange to form a combination of a wide gap and a narrow gap. Multiple tension reinforcing parts can increase the number of narrow gaps, thereby more stably increasing the surface tension of the condensed water, so that the retention effect of the condensed water in the gap is better.

[0028] Optionally, the circumferential dimension of each period of the tension enhancement portion is greater than 3 mm and less than or equal to 25 mm.

[0029] Optionally, the width of the cross section of each tension-enhanced portion is greater than or equal to 1 mm.

[0030] Optionally, the distance between the radially innermost point of all the tension enhancement parts and the axial center of the tension enhancement part is 1 mm-30 mm smaller than the distance between the radially outermost point of all the tension enhancement parts and the axial center of the tension enhancement part.

[0031] According to the cover plate of the present invention, the cross-sectional width, the circumferential period length of each tension enhancement portion and the total radial width of the plurality of tension enhancement portions are appropriately set, so as to achieve a good retention effect on condensed water in the gap.

[0032] Optionally, the central portion is further provided with a water guiding portion, which is located on the inner side of the tension enhancing portion along the radial direction of the central portion and adjacent to the tension enhancing portion. The water guiding portion is constructed to be inclined from the inner upper part to the outer lower part, and is used to guide the condensed water on the lower surface of the cover plate to the tension enhancing portion.

[0033] According to the cover plate of the present invention, the water guide portion is inclined from the inner upper portion to the outer lower portion, guiding the condensed water on the lower surface of the cover plate to the tension enhancement portion, so that the condensed water fills the gap, thereby enhancing the sealing effect.

[0034] A second aspect of the present invention provides a detachable cover assembly for detachably mounting on a liner cover of a cover of a cooking utensil, wherein the cooking utensil comprises a cooking container, wherein an opening of the cooking container is configured with a flange bent radially outward. The detachable cover assembly comprises:

[0035] The cover plate according to the first aspect; and

[0036] A sealing ring is connected to the edge portion of the cover plate, and at least a portion of the sealing ring is lower than the tension-enhancing portion.

[0037] The sealing ring is used to contact the upper surface of the flange when the cover body covers the pot body, and the tension enhancement part is used to be located above the flange when the cover body covers the pot body.

[0038] According to the detachable cover assembly of the present invention, the sealing ring is used to seal between the cover plate and the opening of the cooking container, and the tension reinforcement portion allows condensed water in the gap to further enhance the sealing effect between the cover plate and the cooking container.

[0039] Optionally, the edge portion of the cover plate is bent at least downward and then inward to form a rolled cavity, and the sealing ring includes a rolled portion and a sealing portion that are connected to each other, the rolled portion is located inside the rolled cavity, and the sealing portion is located outside the rolled cavity, and the lower end of the sealing portion is used to contact the upper surface of the flange.

[0040] According to the detachable cover assembly of the utility model, the sealing ring is installed in the curled cavity at the edge of the cover plate, and only the sealing part is located outside the cavity, so the external leakage area is small, and the cover is neat and beautiful.

[0041] Optionally, the lower end of the sealing portion protrudes downward from the lower surface of the tension enhancing portion by no more than 3 mm.

[0042] According to the detachable cover assembly of the present invention, the sealing portion protrudes downward from the lower surface of the tension-enhancing portion by an appropriate size, thereby achieving a good sealing effect between the cover plate and the cooking container.

[0043] Optionally, in a cross section of the detachable cover assembly along the axial direction, a distance between a geometric center of the sealing portion and a geometric center of the tension reinforcement portion along the radial direction is 3 mm to 10 mm.

[0044] According to the detachable cover assembly of the present invention, the distance between the sealing portion and the tension-enhancing portion is appropriate, and both are located above the flange, so that the overall sealing effect is good.

[0045] A third aspect of the present invention provides a cover for a cooking utensil, the cover comprising:

[0046] Liner cover, and

[0047] The removable cover assembly according to the second aspect, wherein the cover plate is detachably connected to the liner cover.

[0048] The lid of the present invention provides a gap between the lid and the flange of the cooking container. Condensed water can be retained in this gap due to surface tension, thereby sealing the gap. The tension-enhancing portion protrudes downward from the lower surface of the lid, further reducing the size of the gap. This increases the surface tension of the condensed water, improving its resistance to air pressure and enhancing the seal reliability between the lid and the cooking container. The tension-enhancing portion also increases the surface area of the gap, facilitating the retention of condensed water.

[0049] A fourth aspect of the present invention provides a cover for a cooking utensil, wherein the cooking utensil comprises a cooking container, wherein an opening of the cooking container is configured with a flange bent radially outward, and the cover comprises:

[0050] The cover plate according to the first aspect; and

[0051] a sealing ring connected to the edge portion of the cover plate, wherein at least a portion of the sealing ring is located below the tension-enhancing portion,

[0052] The sealing ring is used to contact the upper surface of the flange when the cover body covers the pot body, and the tension enhancement part is used to be located above the flange when the cover body covers the pot body.

[0053] According to the cover body of the present invention, the lower surface of the cover plate is configured with a tension reinforcement portion, which can increase the surface tension of condensed water in the gap between the cover plate and the opening of the cooking container, thereby enhancing the sealing effect between the cover plate and the cooking container.

[0054] A fifth aspect of the present invention provides a cooking utensil, comprising:

[0055] A pot body, the pot body having a cooking container for holding food, the opening of the cooking container being provided with an outwardly bent flange; and

[0056] The cover according to the third or fourth aspect is used to cover the pot body.

[0057] When the cover covers the pot body, the sealing ring contacts the upper surface of the flange, and the tension enhancement portion is located above the flange.

[0058] According to the cooking utensil of the present invention, a seal is formed between the cover plate of the lid body and the flange of the cooking container, and the tension enhancement portion protrudes downward from the lower surface of the cover plate by an appropriate dimension, which significantly reduces the gap size and increases the surface area of the gap. By increasing the surface tension of the condensed water, its ability to resist air pressure is improved, thereby improving the sealing reliability between the cover plate and the cooking container.

[0059] A sixth aspect of the present invention provides a cooking utensil, comprising:

[0060] A pot body, the pot body having a cooking container for holding food, the opening of the cooking container being provided with an outwardly bent flange; and

[0061] The cover is used to cover the pot body. The lower surface of the cover is provided with a sealing ring. When the cover covers the pot body, the sealing ring contacts the upper surface of the flange.

[0062] The upper surface of the flange is provided with at least one circle of tension-enhancing portions protruding upward at a position located on the inner side of the sealing ring, and / or the lower surface of the cover body is provided with at least one circle of tension-enhancing portions protruding downward at a position located on the inner side of the sealing ring and corresponding to the top of the flange, so as to increase the surface tension of condensed water in the gap between the cover plate of the cover body and the flange.

[0063] According to the cooking utensil of the present invention, the tension enhancement portion can be configured to protrude upward from the flange of the cooking container, or can be configured to protrude downward from the lower surface of the lid body, thereby increasing the size and surface area of the gap between the lid body and the flange, thereby increasing the surface tension of the condensed water and improving the sealing reliability between the cover plate and the cooking container. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The following drawings of the present invention are used as a part of the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the principle of the present invention.

[0065] Figure 1 is a schematic diagram of a cooking appliance according to a specific embodiment of the present application;

[0066] Figure 2 is a schematic side cross-sectional view of a cooking appliance according to a specific embodiment of the present application;

[0067] Figure 3 is a side cross-sectional schematic diagram of a removable cover assembly according to a specific embodiment of the present application;

[0068] Figure 4 It is a bottom view of a detachable cover assembly according to a specific embodiment of the present application;

[0069] Figure 5 for Figure 3 A magnified schematic diagram of area A in the middle;

[0070] Figures 6 to 12 for Figure 4 A magnified schematic diagram of region B; and

[0071] Figure 13 It is a schematic diagram of a cooking container of a cooking appliance according to a specific embodiment of the present application.

[0072] Description of reference numerals:

[0073] 10: Cover

[0074] 11: Lining cover

[0075] 30: Removable cover assembly

[0076] 31: Cover

[0077] 32: Central Department

[0078] 33: Edge

[0079] 34: Rolled cavity

[0080] 35, 95: Tension enhancement part

[0081] 35A: Ring part

[0082] 35B: bulge

[0083] 36: Water diversion department

[0084] 50: Sealing ring

[0085] 51: Curl

[0086] 52: Sealing part

[0087] 90: Claypot

[0088] 91: Cooking Container

[0089] 92: Flanged

[0090] 100: Cooking utensils

[0091] D1: Circumferential direction

[0092] D2: axial direction DETAILED DESCRIPTION

[0093] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0094] In order to thoroughly understand the present invention, a detailed description will be provided in the following description. It should be understood that these examples are provided to make the disclosure of the present invention thorough and complete, and to fully convey the concepts of these exemplary embodiments to those skilled in the art. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0095] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0096] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".

[0097] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in this document are for illustrative purposes only and are not limiting.

[0098] The present application provides a cover plate, a detachable cover plate assembly, a cover body and a cooking utensil.

[0099] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0100] like Figure 1 and Figure 2As shown, a cooking utensil 100 according to a specific embodiment of the present application primarily comprises a lid 10 and a pot body 90. The pot body 90 is generally rectangular in shape with rounded corners and has a cylindrical cooking container compartment. A cooking container 91 can be freely placed in and removed from the compartment, making it easy to clean. The top of the cooking container 91 has a circular opening for placing ingredients to be heated, such as rice or soup, into the cooking container 91. The opening of the cooking container 91 is provided with an outwardly curved flange 92. For example, the flange 92 has a horizontal upper surface with a radial dimension of 5 mm to 25 mm in the cooking container 91. The lid 10 is generally rectangular in shape with rounded corners and substantially corresponds to the shape of the pot body 90. The lid 10 is pivotally connected to the pot body 90 in an openable and closable manner, used to cover the pot body 90. When the lid 10 is closed on the pot body 90, a cooking space is defined between the lid 10 and the cooking container 91.

[0101] The lid body 10 includes a lining cover 11 and a detachable cover assembly 30, which is detachably connected to the lining cover 11. One side of the lining cover 11 along the length direction is a connecting end that is pivotally connected to the pot body 90, and the other side is a pivot end for opening and closing the lid.

[0102] like Figures 2 to 5 As shown, the removable lid assembly 30 includes a cover plate 31 and a sealing ring 50. The sealing ring 50 is mounted on the cover plate 31. The lower end of the sealing ring 50 protrudes downward from the lowest point of the lower surface of the cover plate 31. When the lid 10 covers the pot body 90, the lower end of the sealing ring 50 contacts the upper surface of the flange 92, thereby sealing the lid 10 and the cooking container 91.

[0103] It should be noted that “up” and “down” in the present application refer to the directions corresponding to the state in which the cooking utensil 100 is placed normally and the lid 10 is covered on the pot body 90 .

[0104] The cover plate 31 includes an edge portion 33 and a central portion 32. The edge portion 33 is the radially outermost portion of the cover plate 31 and is used to mount the sealing ring 50. The central portion 32 is radially located inward of the edge portion 33, with its outer periphery connected to the edge portion 33. The lower surface of the central portion 32 is configured with at least one downwardly protruding tension-enhancing portion 35 spaced apart in the radial direction. Each tension-enhancing portion 35 extends around the circumference D1 of the central portion 32. The tension-enhancing portion 35 is configured to be positioned above the flange 92 when the cover plate 31 covers the opening of the cooking container 91. Typically, when the lid body 10 is closed, a gap exists between the cover plate 31 and the flange 92. The presence of the tension-enhancing portion 35 in the gap reduces its size, resulting in a radially arranged gap with a wide gap and a narrow gap. Under capillary action, the surface tension of the condensed water in the narrow gap (corresponding to the location of the tension-enhancing portion 35) increases, thereby being able to withstand higher air pressure and enhancing the sealing effect between the cover 31 and the cooking container 91. The tension-enhancing portion 35 also increases the surface area of the gap, which is also conducive to the retention of condensed water.

[0105] The sealing ring 50 is connected to the edge 33 of the cover plate 31 and is at least partially lower than the tension-reinforcing portion 35. Specifically, the edge 33 of the cover plate 31 is bent at least downward and then inward to form a rolled cavity 34. The sealing ring 50 includes a connected rolled portion 51 and a sealing portion 52. The rolled portion 51 is located within the rolled cavity 34, while the sealing portion 52 is located outside the rolled cavity 34. The lower end of the sealing portion 52 is configured to contact the upper surface of the flange 92.

[0106] Alternatively, as Figure 5 As shown, the dimension L1 of the tension reinforcement portion 35 protruding downward from the central portion 32 is 0.5mm-1mm. The lower end of the sealing portion 52 protrudes downward from the lower surface of the tension reinforcement portion 35 by no more than 3mm, that is, Figure 5 The dimension L2 does not exceed 3 mm. The tension reinforcement portion 35 is located near the sealing portion 52. In a cross section of the removable cover assembly 30 along the axial direction D2, the radial distance L6 between the geometric center of the sealing portion 52 and the geometric center of the tension reinforcement portion 35 is 3 mm to 10 mm.

[0107] Optionally, each tension reinforcing portion 35 is annular in shape. That is, each tension reinforcing portion 35 extends along the circumferential direction D1 of the central portion 32 for one circle and has a predetermined width in the radial direction of the central portion 32 .

[0108] Optionally, the tension-reinforced portion 35 has a concave-convex structure along the circumferential direction D1, wherein the concave-convex structure is configured to be concave and convex in the radial direction, so that the distance between the inner or outer points of the tension-reinforced portion 35 and the axis of the tension-reinforced portion 35 is different at different circumferential positions. In other words, the inner side, the outer side, or both sides of the tension-reinforced portion 35 meander in the circumferential direction D1.

[0109] For example, the shape of the tension reinforcement portion 35 is configured as an S-shape, a square wave shape, a trapezoidal wave shape, or a triangular wave shape extending in the circumferential direction D1. Figure 4 As shown, the tension reinforcement portion 35 is configured in an S-shape. Figure 6 As shown, the shape of the tension enhancement portion 35 is configured as a square wave of equal length. Figure 7 As shown, the shape of the tension enhancement portion 35 is configured as a square wave of unequal length. Figure 8 As shown, the shape of the tension-enhancing portion 35 is configured as a triangular wave.

[0110] like Figure 9 and Figure 10 As shown, the tension-enhancing portion 35 includes an annular portion 35A and at least one protruding portion 35B. The annular portion 35A extends in a circular ring along the circumferential direction D1 of the central portion 32. The protruding portion 35B is connected to the annular portion 35A and protrudes radially outward or inward from the annular portion 35A. For example, the protruding portion 35B may be square, with one side of the square connected to the annular portion 35A along the inner or outer side of the annular portion 35A. For another example, the protruding portion 35B may be T-shaped, with one vertical end of the T connected to the inner or outer side of the annular portion 35A.

[0111] Optionally, each tension reinforcement portion 35 has a periodic distribution along the circumferential direction D1 . For example, the tension reinforcement portion 35 is configured in a square wave shape extending along the circumferential direction D1 , and each period of the square wave has the same length in the circumferential direction D1 .

[0112] Alternatively, as Figures 6 to 10 As shown, the circumferential dimension L3 of each period of the tension reinforced portion 35 is greater than 3 mm and less than or equal to 25 mm.

[0113] Alternatively, as Figure 8 As shown, the width dimension L4 of the cross section of each tension reinforcement portion 35 is greater than or equal to 1 mm, so that the tension reinforcement portion 35 has enough area to form a gap with the flange 92, that is, the gap formed has enough width in the radial direction.

[0114] Alternatively, as Figure 11 As shown, the lower surface of the central portion 32 is configured with at least two tension enhancement portions 35 . At the same circumferential position, the concave-convex structures of at least two adjacent tension enhancement portions 35 extend in the same radial direction.

[0115] Alternatively, as Figure 12 As shown, the lower surface of the central portion 32 is configured with at least two tension enhancement portions 35 . At the same circumferential position, the concave-convex structures of at least two adjacent tension enhancement portions 35 extend in opposite directions in the radial direction.

[0116] It should be noted that when multiple tension-enhancing portions 35 are provided on the lower surface of the cover plate 31, the multiple tension-enhancing portions 35 may have the same shape or different shapes. For example, at least one of the multiple tension-enhancing portions 35 may have a periodic distribution along the circumferential direction D1, while at least one may not have a periodic distribution along the circumferential direction D1.

[0117] Optionally, the distance between the radially innermost point of all the tension enhancing portions 35 and the axis of the tension enhancing portion 35 is 1 mm to 30 mm smaller than the distance between the radially outermost point of all the tension enhancing portions 35 and the axis of the tension enhancing portion 35, that is, the maximum size of all the tension enhancing portions 35 in the radial direction, such as Figure 11 The size of L5 is 1 mm to 30 mm. The axis of the tension reinforcement portion 35 is the center of its extension shape on the central portion 32.

[0118] Alternatively, as Figure 5 As shown, the central portion 32 is further provided with a water guide 36. This water guide 36 is located radially inward of and adjacent to the tension-enhancing portion 35 of the central portion 32. The water guide 36 is configured to slope downward from the innermost portion to the outermost portion, and is used to guide condensed water from the lower surface of the cover plate 31 toward the tension-enhancing portion 35. After the cooking appliance 100 is used, steam within the cooking space forms droplets on the lower surface of the cover plate 31. The water guide 36 can more quickly collect condensed water and fill any gaps between the cover plate 31 and the opening of the cooking container 91, such as the gap between the tension-enhancing portion 35 and the flange 92, or any gaps between the sealing portion and the flange 92 due to tolerances.

[0119] In another embodiment, Figure 13 As shown, the upper surface of the flange 92 of the cooking container 91 is configured with a tension-enhancing portion 95. Specifically, the upper surface of the flange 92 is provided with at least one circle of upwardly protruding tension-enhancing portion 95, located inside the sealing ring 50. It will be appreciated that the tension-enhancing portion 95 serves the same function as the tension-enhancing portion 35. Optionally, at least one circle of downwardly protruding tension-enhancing portion 35 may also be provided on the lower surface of the lid 10, located inside the sealing ring 50 and above the flange 92, to increase the surface tension of condensed water in the gap between the cover plate 31 and the flange 92.

[0120] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise indicated.

[0121] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and explanation, and the present invention is not limited to the above-mentioned embodiments. According to the teachings of the present invention, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection claimed by the present invention.

Claims

1. A cover plate for a cover body of a cooking utensil, wherein the cooking utensil has a cooking container, and the opening of the cooking container is configured with a flange bent radially outward, and the cover plate is used to cover the opening of the cooking container, characterized in that: The cover plate comprises: an edge portion, the edge portion being the outermost portion of the cover plate in a radial direction and being used for mounting a sealing ring; The central portion is located on the inner side of the edge portion in the radial direction, the outer periphery of the central portion is connected to the edge portion, and the lower surface of the central portion is constructed with at least one downwardly protruding tension enhancement portion arranged at intervals in the radial direction, each of the tension enhancement portions extending for a circle along the circumferential direction of the central portion, and the tension enhancement portion is used to be located above the flange when the cover plate covers the opening of the cooking container, so as to increase the surface tension of condensed water in the gap between the cover plate and the flange.

2. The cover plate according to claim 1, wherein: The downwardly protruding dimension of the tension enhancing portion is 0.5 mm to 1 mm.

3. The cover plate according to claim 1, wherein: Each of the tension-enhanced portions has a periodic distribution along the circumferential direction.

4. The cover plate according to claim 1, wherein: Each of the tension enhancement portions is in the shape of a circular ring.

5. The cover plate according to claim 1, wherein: The tension reinforcement portion has a concave-convex structure along the circumferential direction, and the concave-convex structure is configured to be concave and convex in the radial direction, so that the distance between the inner point or the outer point of the tension reinforcement portion and the axis of the tension reinforcement portion is different at different circumferential positions.

6. The cover plate according to any one of claims 1 to 5, characterized in that: The tension reinforcement portion is configured in an S-shape, a square wave shape, a trapezoidal wave shape, or a triangular wave shape extending in a circumferential direction.

7. The cover plate according to any one of claims 1 to 5, characterized in that: The tension enhancement portion comprises: an annular portion extending in a circular ring along a circumferential direction of the central portion; and At least one protruding portion is connected to the annular portion and protrudes radially outward or inward from the annular portion.

8. The cover plate according to claim 7, wherein: The protruding portion is square or T-shaped.

9. The cover plate according to claim 5, characterized in that: At least two tension reinforcement portions are configured on the lower surface of the central portion. At the same circumferential position, the concave-convex structures of at least two adjacent tension reinforcement portions extend in the same direction along the radial direction.

10. The cover plate according to claim 5, characterized in that: At least two tension reinforcement portions are configured on the lower surface of the central portion. At the same circumferential position, the concave-convex structures of at least two adjacent tension reinforcement portions extend in opposite directions along the radial direction.

11. The cover plate according to any one of claims 1 to 5, characterized in that: The circumferential dimension of each period of the tension-enhanced portion is greater than 3 mm and less than or equal to 25 mm.

12. The cover plate according to claim 1, wherein: The width of the cross section of each tension-enhancing portion is greater than or equal to 1 mm; and / or The distance between the radially innermost point of all the tension enhancement parts and the axis of the tension enhancement part is 1 mm to 30 mm smaller than the distance between the radially outermost point of all the tension enhancement parts and the axis of the tension enhancement part.

13. The cover plate according to claim 1, wherein: The central portion is also provided with a water guide portion, which is located on the inner side of the tension enhancement portion along the radial direction of the central portion and adjacent to the tension enhancement portion. The water guide portion is constructed to be inclined from the inner upper part to the outer lower part, and is used to guide the condensed water on the lower surface of the cover plate to the tension enhancement portion.

14. A detachable cover assembly for detachably mounting on a cover of a cooking utensil, wherein the cooking utensil comprises a cooking container, wherein the opening of the cooking container is configured with a flange bent radially outward, wherein: The removable cover assembly comprises: The cover plate according to any one of claims 1 to 13; and a sealing ring connected to the edge portion of the cover plate, wherein at least a portion of the sealing ring is lower than the tension-enhancing portion, The sealing ring is used to contact the upper surface of the flange when the cover body covers the pot body, and the tension enhancement part is used to be located above the flange when the cover body covers the pot body.

15. The removable cover assembly according to claim 14, wherein: The edge portion of the cover plate is bent at least downward and then inward to form a rolled cavity. The sealing ring includes a rolled portion and a sealing portion connected to each other. The rolled portion is located inside the rolled cavity, and the sealing portion is located outside the rolled cavity. The lower end of the sealing portion is used to contact the upper surface of the flange.

16. The removable cover assembly according to claim 15, wherein: The lower end of the sealing portion protrudes downward from the lower surface of the tension reinforcement portion by no more than 3 mm.

17. The removable cover assembly according to claim 15, wherein: In a cross section of the removable cover assembly along the axial direction, a distance between a geometric center of the sealing portion and a geometric center of the tension reinforcement portion along the radial direction is 3 mm to 10 mm.

18. A cover for a cooking utensil, characterized in that: The cover body comprises: Liner cover, and The removable cover assembly according to any one of claims 14 to 17, wherein the cover plate is removably connected to the liner cover.

19. A cover for a cooking utensil, wherein the cooking utensil comprises a cooking container, wherein the opening of the cooking container is configured with a flange bent radially outward, wherein: The cover body comprises: The cover plate according to any one of claims 1 to 13; and a sealing ring connected to the edge portion of the cover plate, wherein at least a portion of the sealing ring is located below the tension-enhancing portion, The sealing ring is used to contact the upper surface of the flange when the cover body covers the pot body, and the tension enhancement part is used to be located above the flange when the cover body covers the pot body.

20. A cooking utensil, characterized in that: include: A pot body, the pot body having a cooking container for holding food, the opening of the cooking container being provided with an outwardly bent flange; and The cover according to claim 18 or 19 is used to cover the pot body. When the cover covers the pot body, the sealing ring contacts the upper surface of the flange, and the tension enhancement portion is located above the flange.

21. A cooking utensil, characterized in that: include: A pot body, the pot body having a cooking container for holding food, the opening of the cooking container being provided with an outwardly bent flange; and The cover is used to cover the pot body. The lower surface of the cover is provided with a sealing ring. When the cover covers the pot body, the sealing ring contacts the upper surface of the flange. The upper surface of the flange is provided with at least one circle of tension-enhancing portions protruding upward at a position located on the inner side of the sealing ring, and / or the lower surface of the cover body is provided with at least one circle of tension-enhancing portions protruding downward at a position located on the inner side of the sealing ring and corresponding to the top of the flange, so as to increase the surface tension of condensed water in the gap between the cover plate of the cover body and the flange.

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