Sealing ring, detachable cover assembly, cover body and cooking utensil

Abstract

The utility model discloses a sealing ring which is used for sealing between a cover body of a cooking utensil and a cooking container. The sealing ring is provided with a central axis and comprises a rolling part and a sealing part, and the upper end part of the sealing part is connected to the rolling part. In the assembled state, the edge rolling part is contained in the edge rolling cavity of the cover body, and the sealing part extends out of the edge rolling cavity. The lower end part of the sealing part is used for contacting a radial outward extending edge at the opening of the cooking container, and the lower end part of the sealing part is constructed as a convex curve in the cross section of the sealing ring passing through the central axis. The sealing ring and the cooking container are sealed in a linear contact mode, dirt is not prone to being hidden, the sealing effect between the cover body and the cooking container is guaranteed, meanwhile, the leakage area of the sealing ring is small, and attractiveness is not affected after the sealing ring is used for a long time. And the condition of peculiar smell emission caused by aging of the sealing ring material is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cooking utensils, and in particular to a sealing ring, a detachable cover assembly, a cover body and a cooking utensil. Background Art

[0002] Cooking utensils often use a cover assembly to prevent food in the cooking container from coming into direct contact with the plastic cover. This assembly typically consists of a metal cover, a sealing ring, and a plastic bracket. The sealing ring fills the gap between the metal cover and the cooking container, while the plastic bracket secures the sealing ring to the metal cover.

[0003] Current sealing rings have problems such as strong odor, easy to harbor dirt and grime, yellowing after long-term use, large area and unsightly appearance, resulting in a poor user experience.

[0004] Therefore, a sealing ring, a detachable cover assembly, a cover body and a cooking utensil are needed to at least partially solve the above problems. Utility Model Content

[0005] The Summary of the Utility Model introduces a series of simplified concepts that will be further described in the Detailed Description of the Implementation Method. The Summary of the Utility Model of this application is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the present application provides, in a first aspect, a sealing ring for sealing between a cover of a cooking utensil and a cooking container, wherein the sealing ring has a central axis and comprises:

[0007] a curled portion, which is received in the curled cavity of the cover in an assembled state; and

[0008] A sealing portion, wherein the upper end of the sealing portion is connected to the rolled portion, and, in the assembled state, the sealing portion extends outward from the rolled cavity, the lower end of the sealing portion is used to contact the radially outward edge of the opening of the cooking container, and the lower end of the sealing portion is configured as a convex curve in the cross-section of the sealing ring through the central axis.

[0009] The sealing ring according to the present application comprises a curled portion and a sealing portion. The curled portion is housed within the curled cavity of the lid body, allowing the sealing ring to be mounted to the lid body. This installation eliminates the need for a plastic bracket, resulting in a simple, aesthetically pleasing lid structure and easy assembly. The sealing portion is exposed outside the curled cavity. When the lid body is closed over the cooking container, the sealing portion protrudes downward, contacting the radially outward edge of the cooking container opening. The lower end of the sealing portion is configured as an outwardly convex curve in a cross-section of the sealing ring through the central axis, forming a linear contact seal with the radially outward edge of the cooking container opening. Furthermore, this design makes the sealing portion less susceptible to dirt and grime. This ensures a good seal between the lid body and the cooking container while minimizing leakage. This ensures that the component maintains a good sealing function and a good visual appearance even after extended use. Odors caused by aging of the sealing ring material are also significantly reduced.

[0010] Optionally, in the cross section passing through the central axis, the rolled portion is curved.

[0011] The sealing ring according to the present application is easy to install and not easy to fall off.

[0012] Optionally, in the cross section passing through the central axis, the rolled portion is configured to be bent around a curling axis.

[0013] The sealing ring according to the present application is easy to manufacture.

[0014] Optionally, in the cross section passing through the central axis, the circumferential angle of the rolled portion is greater than or equal to 180 degrees.

[0015] According to the sealing ring of the present application, the rolled portion can occupy a larger space in the rolled cavity, so that the sealing ring is not easy to fall off.

[0016] Optionally, inverted teeth are provided on the outer side of the rolled portion, and the inverted teeth are used to increase the resistance of the rolled portion when it moves toward the opening of the rolled cavity.

[0017] According to the sealing ring of the present application, the inverted teeth make the sealing ring less likely to fall off.

[0018] Optionally, in the cross section passing through the central axis, a corner is formed on the outer side of the rounded portion.

[0019] According to the sealing ring of the present application, when installing, the sealing ring is inserted into the rolled cavity starting from the corner of the rolled portion, so that the sealing ring is easy to install.

[0020] Optionally, in the cross section passing through the central axis, the outer surface of at least one side of the corner portion includes a straight line.

[0021] According to the sealing ring of the present application, the outer surface of at least one side of the corner portion outside the rounded portion includes a straight line, so that the rounded portion has little resistance when being installed into the rounded cavity and is easy to install.

[0022] Optionally, in the cross section passing through the central axis, outer surfaces on both sides of the corner portion include straight lines.

[0023] According to the sealing ring of the present application, the outer surfaces on both sides of the corner portion outside the rounded portion include straight lines, so that the rounded portion has little resistance when being installed into the rounded cavity and is easy to install.

[0024] Optionally, one end of the rounded portion is connected to the outer side of the upper end of the sealing portion, and a portion of the rounded portion is lower than the upper surface of the sealing portion.

[0025] According to the sealing ring of the present application, a portion of the rolled portion is lower than the upper surface of the sealing portion, so that the rolled portion is more firmly fixed in the rolled cavity and is not easy to fall off.

[0026] A second aspect of the present application provides a detachable cover assembly for detachably mounting on a liner cover of a cover of a cooking utensil, the detachable cover assembly comprising:

[0027] A cover plate, comprising:

[0028] Central Division; and

[0029] an edge portion connected to the central portion and located on the periphery of the central portion, the edge portion being provided with a rolled cavity portion with an opening, the rolled cavity portion constituting at least a portion of a cavity wall of the rolled cavity, the outer periphery of the rolled cavity portion being used to be connected to the liner; and

[0030] The sealing ring according to any one of the first aspects above,

[0031] The rolled portion of the sealing ring is located in the rolled cavity, the sealing portion of the sealing ring is located outside the rolled cavity, and the connection portion between the rolled portion and the sealing portion passes through the opening of the rolled cavity.

[0032] According to the detachable cover assembly of the present application, no plastic parts are provided on the outer periphery of the cover plate, and the cover plate itself is directly connected to the lining cover. The structure of the detachable cover assembly is simplified, and at the same time, it is ensured that the sealing ring is easy to install and not easy to fall off; the external leakage area of the sealing ring is small, and it is not easy to hide dirt and grime, and the appearance will not be affected after long-term use.

[0033] Optionally, in a cross section of the cover plate, the rolled cavity portion is in the shape of an arc curved around a curling axis, and the opening is formed between an end edge of the arc and the central portion.

[0034] According to the detachable lid assembly of the present application, the edge of the cover plate is provided with a rolled cavity portion that bends downward and then inward, so that the sealing ring can be installed to the cover plate by accommodating the rolled portion in the rolled cavity, which is simple to install and not easy to fall off; and the sealing portion can protrude downward from the opening and contact-seal with the radially outward extension line of the opening of the cooking container, and the sealing ring can achieve sealing between the cover body and the cooking container with a small area of leakage.

[0035] Optionally, the arc has a lowest position, and the end edge of the arc is higher than the lowest position of the arc.

[0036] According to the detachable cover assembly of the present application, the edge of the cover plate has a portion extending inward and upward, which has the function of preventing the rolled portion from falling off, and the connection between the sealing ring and the cover plate is more secure.

[0037] Optionally, a central angle corresponding to a circumferential distance between the end edge of the arc and the lowest position of the arc is less than or equal to 50°.

[0038] According to the detachable cover assembly of the present application, the portion of the edge portion extending inwardly and upwardly prevents the sealing ring from falling off, and the opening size is appropriate, so the sealing ring is easy to install.

[0039] Optionally, a central angle corresponding to a circumferential distance between the end edge of the arc and the lowest position of the arc is greater than or equal to 30° and less than or equal to 40°.

[0040] According to the detachable cover assembly of the present application, the portion of the edge portion extending inwardly and upwardly prevents the sealing ring from falling off, and the opening size is appropriate, so the sealing ring is easy to install.

[0041] Optionally, on a cross section passing through the central axis of the removable cover assembly, the lower end portion of the sealing portion of the sealing ring protrudes from the lower surface of the cover plate by a distance a1, and 0<a1≤3mm; and / or

[0042] The distance between the end edge of the rolled cavity and the central portion is 2 mm to 10 mm.

[0043] According to the removable lid assembly of the present application, the lower end of the sealing portion protrudes from the lower surface of the cover plate by an appropriate amount, thereby achieving a good seal between the cover plate and the cooking container. The distance between the end edge of the rounded cavity and the center (i.e., the opening size) is appropriate, making the sealing ring less likely to fall off and easy to install.

[0044] Optionally, the central portion is configured with a downwardly protruding protrusion, and the protrusion is used to interfere with the lining cover of the cover body when the cover plate is reversely installed.

[0045] According to the detachable cover assembly of the present application, the cover plate is provided with a downwardly protruding protrusion. When the cover plate is installed upside down, the protrusion faces upward and interferes with the lining cover and cannot be installed to the lining cover, thereby preventing the user from installing the cover plate upside down.

[0046] Optionally, an inverted tooth is provided on the outside of the rolled portion of the sealing ring, wherein the direction from the root of the inverted tooth to the tip of the inverted tooth is a first direction, and the direction from the inside of the rolled cavity to the outside of the rolled cavity along the axis of the opening of the rolled cavity is a second direction, and the angle between the first direction and the second direction is an acute angle.

[0047] According to the detachable cover assembly of the present application, inverted teeth are provided on the outside of the curled portion. When the curled portion moves toward the opening, the resistance between the curled portion and the curled cavity is large, thereby preventing the sealing ring from falling off.

[0048] Optionally, the edge of the central portion has an annular first area, the first area is configured to extend upward, the curled cavity portion is bent downward and then inward relative to the first area, there is a gap between the end edge of the curled cavity portion and the first area, and the first area constitutes a part of the cavity wall of the curled cavity.

[0049] According to the removable cover assembly of the present application, the first area extends upward and constitutes a part of the cavity wall of the rolled cavity, which can increase the contact area between the cavity wall of the rolled cavity and the sealing ring, has a better anti-falling effect, and reduces the processing difficulty of the rolled cavity.

[0050] Optionally, the edge portion further includes a second area, the second area is located between the rolled cavity portion and the first area, and the second area is configured to extend along a plane.

[0051] According to the detachable cover assembly of the present application, the second area is connected between the rolled cavity portion and the first area, so that the distance between the end edge of the rolled cavity portion and the central portion is appropriate, that is, the opening size is appropriate.

[0052] A third aspect of the present application provides a cover, comprising:

[0053] Liner cover; and

[0054] The detachable cover assembly described in any one of the above second aspects, wherein the cover plate is detachably connected to the liner cover, and the outer peripheral side of the rolled cavity portion of the cover plate is used to be connected to the liner cover.

[0055] According to the lid body of the present application, a line contact seal is formed between the lid body and the cooking container, the leakage area of the sealing ring is small, it is not easy to hide dirt and grime, and it does not affect the appearance after long-term use. The odor caused by aging of the sealing ring material is also greatly reduced; the detachable lid assembly has few components, the sealing ring is easy to install and not easy to fall off; the sealing effect between the cover and the cooking container is good.

[0056] Optionally, a movable snap assembly is provided on one side of the lining cover along the length direction for detachably connecting with the edge portion of the cover plate.

[0057] According to the cover body of the present application, the cover plate and the lining cover are detachably connected, which is convenient for cleaning and maintenance and easy for assembly and disassembly.

[0058] Optionally, the movable snap assembly is also used to engage with the pot body of the cooking utensil, and the cover body is constructed so that when the cover plate is installed to the lining cover, the cover plate enables the movable snap assembly to be located in a position engaged with the pot body.

[0059] According to the present application, the movable buckle assembly is used to connect the pot body and the detachable cover at the same time, and the structure of the cover body is compact.

[0060] Optionally, the movable buckle assembly includes an movable buckle and a spring, the movable buckle is used to connect the cover plate and the pot body, one end of the spring abuts against the movable buckle, and the spring is used to make the movable buckle deviate from the position of being engaged with the pot body when the cover plate is not installed on the cover body.

[0061] According to the cover body of the present application, when the cover plate is not installed, the buckle cannot be fastened, which can prevent the user from missing the cover plate.

[0062] Optionally, two accommodating grooves spaced apart in the width direction are provided on the other side of the lining cover in the length direction, for accommodating the rolled cavity portion of the cover plate.

[0063] According to the cover body of the present application, the movable buckle and the two receiving grooves support the cover plate, so that the position of the cover plate is stable and the installation and disassembly are convenient.

[0064] Optionally, the lining cover is provided with a lining cover steam channel for discharging steam, and the central portion of the cover plate is provided with a cover plate steam channel, and the lining cover steam channel is used to be sealed and sleeved on the outer periphery of the cover plate steam channel.

[0065] According to the cover body of the present application, the cover plate steam channel and the lining cover steam channel are sealed and sleeved, so that the movable buckle and the lining cover steam channel support the cover plate, making the position of the cover plate stable and easy to install and disassemble.

[0066] Furthermore, the lining cover is provided with a temperature sensor, and the central portion of the cover plate is provided with an opening for allowing the temperature sensor to pass through.

[0067] According to the cover body of the present application, the opening in the central portion of the cover plate can be used for positioning when the cover plate is installed.

[0068] A fourth aspect of the present application provides a cooking utensil, comprising:

[0069] A pot body, the pot body having a cooking container for holding food, the opening of the cooking container being provided with a radially outwardly extending edge; and

[0070] The cover according to any one of the third aspects is used to cover the pot body.

[0071] When the cover body covers the pot body, the lower end portion of the sealing portion contacts the upper surface of the radially outwardly extending edge.

[0072] According to the cooking utensil of the present application, the sealing portion protrudes downward and contacts the radially outward edge of the opening of the cooking container, forming a line contact seal with the cooking container, which is not easy to hide dirt and grime; the sealing effect between the lid body and the cooking container is good; the leakage area of the sealing ring is small, and the appearance is not affected after long-term use; the sealing ring is easy to install and not easy to fall off; the detachable lid assembly has a simple and beautiful structure and is easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] The following drawings of the present application are used as part of the present application for understanding the present application. The drawings show embodiments of the present application and their descriptions, which are used to explain the principle of the present application.

[0074] Figure 1 is a schematic diagram of a cooking appliance according to a specific embodiment of the present application;

[0075] Figure 2 is a schematic side cross-sectional view of a cooking appliance according to a specific embodiment of the present application;

[0076] Figure 3 is a schematic diagram of a detachable cover assembly according to a specific embodiment of the present application;

[0077] Figure 4 for Figure 3 A schematic diagram of the other side of the removable cover assembly shown in ;

[0078] Figure 5 is a side cross-sectional schematic diagram of a removable cover assembly according to a specific embodiment of the present application;

[0079] Figure 6 and Figure 7 They are Figure 5 Schematic diagram of partial enlargement of area A in different examples;

[0080] Figure 8 is a three-dimensional schematic diagram of a section of a sealing ring according to a specific embodiment of the present application;

[0081] Figure 9 for Figure 2 A partial enlarged schematic diagram;

[0082] Figure 10 It is a side cross-sectional schematic diagram of a partial structure of a cover body according to a specific embodiment of the present application;

[0083] Figure 11 is a side cross-sectional schematic diagram of a partial structure of a cover according to another example of a specific embodiment of the present application;

[0084] Figure 12 is another side cross-sectional schematic diagram of a cooking appliance according to a specific embodiment of the present application; and

[0085] Figure 13 for Figure 12 A partial enlarged schematic diagram of area B in the middle.

[0086] Description of reference numerals:

[0087] 10: Cover

[0088] 11: Lining cover

[0089] 12: Active buckle assembly

[0090] 13: Pot body buckle

[0091] 14: Active buckle

[0092] 141: convex platform

[0093] 142: Guide protrusion

[0094] 15: Spring

[0095] 16: Storage tank

[0096] 17: Lining cover steam channel

[0097] 171: Inner convex part

[0098] 18: Temperature sensor

[0099] 19: Limiting surface

[0100] 20: Limiting ribs

[0101] 30: Removable cover assembly

[0102] 31: Cover

[0103] 32: Central Department

[0104] 32A: First Area

[0105] 33: Edge

[0106] 33A: Curled cavity

[0107] 33B: Second Area

[0108] 34: Lowest position

[0109] 35: End edge

[0110] 36: Opening

[0111] 37: Rolled cavity

[0112] 38: Cover steam channel

[0113] 39: Temperature sensor opening

[0114] 40: Raised part

[0115] 50: Sealing ring

[0116] 51: Curl

[0117] 52: Sealing part

[0118] 52A: Upper end

[0119] 52B: lower end

[0120] 53: Reverse tooth

[0121] 54: Corner

[0122] 90: Claypot

[0123] 91: Cooking Container

[0124] 92: radial outward along

[0125] 100: Cooking utensils

[0126] L1: Curling axis

[0127] L2: Central axis

[0128] D1: First direction

[0129] D2: Second direction DETAILED DESCRIPTION

[0130] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described in order to avoid confusion with the present application.

[0131] In order to thoroughly understand the present application, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other embodiments.

[0132] It should be noted that the terms used herein are only for the purpose of 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 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.

[0133] Ordinal numbers such as “first” and “second” cited in this application 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”.

[0134] 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.

[0135] The present application provides a sealing ring, a detachable cover assembly, a cover body and a cooking utensil.

[0136] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings.

[0137] 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 90. The pot 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 radially flared edge 92. For example, the radially flared edge 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 90. The lid 10 is pivotally connected to the pot 90 in an openable and closable manner, used to cover the pot 90. When the lid 10 is closed on the pot 90, a cooking space is defined between the lid 10 and the cooking container 91.

[0138] 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.

[0139] like Figures 3 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 to 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 radially outward flared edge 92, thereby sealing the lid 10 and the cooking container 91.

[0140] It should be noted that “upper” and “lower” in the present application refer to a state where the cooking utensil 100 is placed normally and the lid 10 is covered on the pot body 90 .

[0141] like Figures 5 to 7 As shown, a rolled cavity 37 with an opening is formed at the edge of the cover plate 31 for installing the sealing ring 50 .

[0142] The sealing ring 50 has a central axis L2 and includes a curled portion 51 and a sealing portion 52. When the sealing ring 50 is assembled with the cover plate 31, the curled portion 51 is received within the curled cavity 37, securing the sealing ring 50 to the cover plate 31. The sealing portion 52 is located outside the curled cavity 37. The connection between the curled portion 51 and the sealing portion 52 passes through the opening 36 of the curled cavity 37. The upper end 52A of the sealing portion 52 is connected to the curled portion 51. Furthermore, when assembled, the sealing portion 52 extends beyond the curled cavity 37, with the lower end 52B of the sealing portion 52 contacting the radially outwardly extending edge 92 of the opening of the cooking container 91. The lower end portion 52B of the sealing portion 52 is constructed as an outward convex curve c in the cross section of the sealing ring 50 passing through the central axis L2, that is, when the lid body 10 is closed on the pot body 90, the lower end portion 52B of the sealing portion 52 protrudes downward, forming a line contact seal with the upper surface of the radially outward edge 92 of the cooking container 91, and the area of the sealing ring 50 leaking out of the rolled cavity 37 is small.

[0143] The sealing ring 50 of the present invention eliminates the need for a plastic bracket for installation, resulting in a simple, aesthetically pleasing structure and easy assembly of the lid 10. The sealing ring 50 does not cover the cover plate 31; only the sealing portion 52 is exposed outside the curled cavity 37. When the lid 10 is closed over the cooking container 91, the sealing portion 52 protrudes downward, contacting the radially outward edge 92 of the cooking container 91 opening. The lower end 52B of the sealing portion 52 is configured as an outwardly convex curve c in a cross-section of the sealing ring 50 through its central axis L2. This configuration forms a linear contact seal with the radially outward edge 92 of the cooking container 91 opening. This design ensures that the sealing ring 50 maintains a seal between the lid 10 and the cooking container 91 while minimizing leakage. This prevents dirt from accumulating between the sealing ring 50 and the cover plate 31, maintaining a good seal and maintaining a pleasant visual appearance even after prolonged use. Odors caused by aging of the sealing ring 50 are also significantly reduced.

[0144] According to the removable lid assembly 30 of the present application, the sealing ring 50 can be attached to the lid plate 31 by inserting the curled portion 51 through the opening 36 into the curled cavity 37. This makes installation simple, resists falling off, and requires few components. Furthermore, the opening 36 is located on the underside of the lid plate 31, and the sealing portion 52 protrudes downward from the opening 36. Thus, when the lid 10 is closed onto the cooking container 91, it forms a contact seal with the radially outwardly extending line 92 of the opening of the cooking container 91. This allows the sealing ring 50 to achieve a seal between the lid 10 and the cooking container 91 with minimal external exposure.

[0145] The sealing ring 50 has a radially symmetrical structure, for example, the shape of the cross section remains unchanged. Preferably, in the cross section of the sealing ring 50 passing through the central axis L2, the curled portion 51 is curved, for example, it can be a C-shaped curve, a U-shaped curve, a J-shaped curve, etc. Further preferably, in the cross section of the sealing ring 50 passing through the central axis L2, the curled portion 51 is constructed to be curved around the curling axis L1 (such as Figures 6 to 8 The curling axis L1 is perpendicular to the cross-section of the sealing ring 50 passing through the central axis L2. Therefore, the curling axis L1 is a closed curve, such as a circle, with its center on the central axis L2 of the sealing ring 50. Preferably, the circumferential angle of the curling portion 51 in the cross-section of the sealing ring 50 passing through the central axis L2 is greater than or equal to 180 degrees. This makes the curling portion 51 easy to install in the curling cavity 37 and difficult to fall out.

[0146] Preferably, if Figure 6 As shown, the outer side of the rolled portion 51 is provided with inverted teeth 53. The inverted teeth 53 are used to increase the resistance of the rolled portion 51 when moving toward the opening of the rolled cavity 37, making the sealing ring 50 more securely installed and less likely to fall off. Specifically, the direction from the root of the inverted teeth 53 to the tip of the inverted teeth 53 is a first direction D1, and the direction from the inside of the rolled cavity 37 to the outside of the rolled cavity 37 along the axis of the opening 36 of the rolled cavity 37 is a second direction D2. The angle between the first direction D1 and the second direction D2 is an acute angle. Therefore, when the rolled portion 51 tends to move outward from the rolled cavity, the inverted teeth 53 can hinder the outward movement of the rolled portion 51, making it less likely for the sealing ring 50 to fall off the rolled cavity 37. The inverted teeth 53 can be provided at least in the portion of the rolled portion 51 where friction with the inner wall of the rolled cavity 37 occurs during outward movement.

[0147] Optionally, in a cross section of the sealing ring 50 passing through the central axis L2, a corner 54 is formed on the outside of the rolled portion 51. When installing the sealing ring 50, the rolled portion 51 is inserted into the rolled cavity 37 starting from the corner 54, making it easier to install the rolled portion 51 into the rolled cavity 37.

[0148] Preferably, in a cross section of the sealing ring 50 passing through the central axis L2, the outer surface of at least one side of the corner portion 54 includes a straight line. Figure 6 As shown, the outer surface of the upper side of the corner portion 54 includes a straight line. More preferably, as Figure 7 As shown, the outer surfaces of both sides of the corner portion 54 are straight lines. That is, in a cross section of the sealing ring 50 passing through its central axis L2, the upper and lower sides of the corner portion 54 are both straight lines. This reduces resistance when the curled portion 51 is inserted into the curled cavity 37, making installation easier.

[0149] like Figure 6 and Figure 7As shown, preferably, one end of the curled portion 51 is connected to the outer side of the upper end portion 52A of the sealing portion 52, and a portion of the curled portion 51 is lower than the upper surface of the sealing portion 52. That is, a portion of the curled portion 51 is lower than the opening 36 of the curled cavity 37, so that the curled portion 51 is more firmly in the curled cavity 37 and is not easy to fall off.

[0150] In the assembled state, the lowest point where the lower end 52B of the sealing portion 52 protrudes from the lower surface of the cover plate 31 is dimensioned by a1, where 0 < a1 ≤ 3 mm. The sealing ring 50 is soft, and the lower end 52B protrudes from the lowest point of the lower surface of the cover plate 31 to a suitable size. This eliminates gaps caused by tolerances of the cover plate 31 or the radially outwardly flared edge 92, thereby ensuring a good seal between the lid 10 and the cooking container 91.

[0151] The cover plate 31 includes a central portion 32 and an edge portion 33. The edge portion 33 is connected to the central portion 32 and is located on the periphery of the central portion 32. The edge portion 33 is provided with a rolled cavity portion 33A with an opening. The rolled cavity portion 33A constitutes at least part of the cavity wall of the rolled cavity 37. In other words, the rolled cavity 37 is at least partially formed by bending the rolled cavity portion 33A. The outer periphery of the rolled cavity portion 33A is used to connect to the liner cover 11.

[0152] The cover plate 31 has a central axis. When the sealing ring 50 and the cover plate 31 are assembled, the central axis of the cover plate 31 coincides with the central axis L2 of the sealing ring 50. Preferably, in a cross-section of the cover plate 31 passing through its central axis L2, the rolled cavity 33A is in the shape of an arc curved around a curling axis (e.g., curling axis L1). The opening 36 is formed between the end edge 35 of the arc and the central portion 32. Preferably, in a cross-section of the cover plate 31 passing through its central axis L2, the rolled cavity 33A is curved downward and then inward into an arc shape. For the arc-shaped rolled cavity 33A, the curling axis L1 passes through the center of the cross-section of the rolled cavity 33A. Here, "inward" refers to the direction from the edge of the cover plate 31 toward its center. Optionally, the rolled cavity 33A is in the shape of an arc with an outer diameter of 3 mm to 15 mm. Preferably, the rolled cavity 33A is in the shape of an arc with an outer diameter of 6 mm to 15 mm. However, the rolled cavity portion 33A in the present application is not limited to an arc shape, and may also be a C-shaped curve of other shapes.

[0153] The arc of the curled cavity 33A has a lowest point 34. Preferably, the terminal edge 35 of the arc of the curled cavity 33A is higher than the lowest point 34. That is, the curled cavity 33A extends beyond the point below the curling axis L1 and continues to extend inward and upward. As a result, the opening 36 of the curled cavity 37 is higher than the bottom of the curled cavity 37. The inward and upward extension of the curled cavity 33A prevents the curled portion 51 from falling out of the curled cavity 37, further strengthening the connection between the sealing ring 50 and the cover plate 31.

[0154] Furthermore, the central angle θ corresponding to the circumferential distance between the arc's terminal edge 35 and the arc's lowest point 34 is less than or equal to 50°. More preferably, the central angle θ corresponding to the circumferential distance between the arc's terminal edge 35 and the arc's lowest point 34 is greater than or equal to 30° and less than or equal to 40°. This ensures that the opening 36 is appropriately sized, making the sealing ring 50 easy to install and unlikely to fall off.

[0155] Optionally, the distance between the distal edge 35 of the rim portion 33 and the central portion 32 is 2 mm to 10 mm, thereby limiting the opening to an appropriate size. In the present application, any point on the outer surface of the distal edge 35 and any point on the outer surface of the central portion 32 have a spacing distance, with the minimum of all spacing distances being the distance between the distal edge 35 and the central portion 32. The opening 36 of the convoluted cavity 37 is located on the line connecting the two points with the minimum spacing distance.

[0156] Optionally, the edge of the central portion 32 has an annular first region 32A, the first region 32A is configured to extend upward, the rolled cavity portion 33A is bent downward and then inward relative to the first region 32A to form a cavity, and a gap is provided between the end edge 35 of the rolled cavity portion 33A and the first region 32A to form an opening 36 of the rolled cavity 37. The first region 32A constitutes a portion of the cavity wall of the rolled cavity 37. It should be noted that the upward extension of the first region 32A can be as follows: Figure 6 The upward extension along a straight line as shown in the figure may also extend along a curve, for example, with an arc-shaped cross section. For example, in the cross section of the cover plate 31, the first region 32A and the rolled cavity portion 33A are arcs of the same circle. The downward and inward curvature of the rolled cavity portion 33A may be formed by multiple bends to form a downward and inward extension.

[0157] Optionally, the edge portion 33 further includes a second region 33B located between the rolled cavity portion 33A and the first region 32A, and the second region 33B is configured to extend along a plane. In other words, the rolled cavity portion 33A and the second region 33B are connected and form at least a portion of the cavity wall of the rolled cavity 37.

[0158] like Figure 2 and Figure 9As shown, a movable snap assembly 12 is provided on one side of the lining cover 11 along its length (e.g., on one side of the pivot end of the lining cover 11), which is used to detachably connect with the edge portion 33 of the cover plate 31. Specifically, the movable snap assembly 12 includes a movable snap 14, which is provided on the lining cover 11. After the cover plate 31 is installed on the lining cover 11, the movable snap 14 can engage with the pot body snap 13 provided on the pot body 90 when the lid body 10 is closed onto the pot body 90. The movable snap 14 also has an upwardly facing protruding platform 141 on the side facing the cover plate 31. After the cover plate 31 is installed on the lining cover 11, the protruding platform 141 provides upward support for the cover plate 31.

[0159] Preferably, the movable buckle assembly 12 further includes a spring 15, one end of which abuts the movable buckle 14 and the other end abuts the lining cover 11. The spring 15 is used to deflect the movable buckle 14 from its engagement position with the pot body buckle 13 when the cover plate 31 is not installed on the lid body 10, for example, to a position inward of the engagement position (i.e., toward the center of the lid body 10). Therefore, if the user fails to install the cover plate 31, the lid body 10 will not engage with the pot body 90 after being attached to the pot body 90, thus reminding the user to install the cover plate 31. Furthermore, one end of the spring 15 abuts the outer side of the movable buckle 14, which is provided with a guide protrusion 142. One end of the spring 15 is sleeved around the outer circumference of the guide protrusion 142. The guide protrusion 142 serves to limit and guide the spring 15. The outer side herein refers to the side away from the center of the lid body 10.

[0160] Alternatively, as Figure 1 As shown, two receiving grooves 16 spaced apart in the width direction are provided on the other side of the lining cover 11 along the length direction, for accommodating the curled cavity portion 33A of the cover plate 31. For example, the receiving groove 16 is formed by the limiting rib 20 connected to the lining cover 11 and the main body of the lining cover 11. The receiving groove 16 has an opening on the side facing the center of the lining cover 11. At the same time, the diameter of the cover plate 31 is larger than the outer diameter of the opening of the cooking container 91, so that the outer protruding platform 141 of the movable buckle 14 can support the cover plate 31 without interfering with the cooking container 91. As a result, the two receiving grooves 16 and the movable buckle 14 are located at three different positions along the circumference of the cover plate 31, and together play an upward supporting role for the cover plate 31.

[0161] When installing the cover plate 31, the cover plate 31 is first placed obliquely into the two receiving grooves 16. At this time, the cover plate 31 is supported and limited by the opening edges of the two receiving grooves 16 (such as the edges of the limiting ribs 20), and is kept in the two receiving grooves 16. Figure 10The tilted state shown. Push the cover plate 31 toward the lining cover 11, and the curled cavity 33A of the cover plate 31 will push the movable buckle 14 to avoid until it is installed in place, that is, the curled cavity 33A enters the position of the side of the convex platform 141 facing the lining cover 11. The convex platform 141 and the two receiving grooves 16 of the movable buckle 14 support the curled cavity 33A of the cover plate 31. When the cover body 10 is in the open state, when removing the cover plate 31, push the movable buckle 14 to release one end of the cover plate 31, and the cover plate 31 tilts under the action of gravity until the cover plate 31 is supported and stopped by the opening edges of the two receiving grooves 16, and is in a state as shown. Figure 10 In the tilted state shown, the cover plate 31 can be directly taken out.

[0162] Alternatively, as Figure 1 、 Figure 11 and Figure 13 As shown, the lining cover 11 is provided with a lining cover steam channel 17 for discharging steam, and the central portion 32 of the cover plate 31 is provided with a cover plate steam channel 38. The cover plate steam channel 38 is a channel wall protruding upward from the central portion 32, and the lining cover steam channel 17 is used to be sealed and sleeved on the outer periphery of the lining cover steam channel 17. The cover plate steam channel 38 can be used for positioning when the cover plate 31 is installed. Furthermore, the lining cover steam channel 17 is provided with an inner convex portion 171, and the inner convex portion 171 protrudes from the inner wall of the lining cover steam channel 17 toward the central axis of the lining cover steam channel 17. The inner convex portion 171 is elastic, for example, it is at least a part of a sealing ring made of silicone. After the inner convex portion 171 is sleeved with the cover plate steam channel 38, it can have an upward supporting effect on the cover plate 31 through the cover plate steam channel 38, thereby supporting the two positions of the cover plate 31 respectively with the movable buckle 14.

[0163] When the detachable cover assembly 30 needs to be disassembled, the cover body 10 is in the open state, and the movable buckle 14 is toggled to release one end of the cover plate 31. Since there is a gap between the cover plate steam channel 38 and the lining cover steam channel 17, and the cover plate steam channel 38 deviates from the center of gravity of the cover plate 31, the cover plate 31 will tilt to a certain angle under the action of gravity. Figure 11 The cover plate 31 can now be directly removed from the position shown.

[0164] When installing the removable cover assembly 30, first align the cover plate steam channel 38 of the cover plate 31 with the lining cover steam channel 17, and press it slightly. The cover plate steam channel 38 causes the inner protrusion 171 to deform, so that the cover plate steam channel 38 and the inner protrusion 171 are sleeved. Push the cover plate 31 toward the lining cover 11, and the rolled cavity 33A of the cover plate 31 will push the movable buckle 14 to avoid until it is installed in place, that is, the rolled cavity 33A enters the position of the side of the outer protruding platform 141 facing the lining cover 11. At this time, the removable cover assembly 30 is installed to the lining cover 11. In the closed state of the cover body 10, the movable buckle 14 and the inner protrusion 171 jointly support the cover plate 31. The cover plate 31 is as follows Figure 10 and Figure 11 The inclination angle can be adjusted by setting the size of the limiting surface 19, wherein the limiting surface 19 is a supporting surface that supports the other end of the cover plate 31 when one end of the cover plate 31 supported by the movable buckle 14 is released in the inclined state.

[0165] Alternatively, as Figure 1 、 Figure 2 and Figure 10 As shown, the lining cover 11 is provided with a temperature sensor 18 for detecting the top temperature of the cooking space. Figures 3 to 5 As shown, the central portion 32 of the cover plate 31 is provided with a temperature sensor opening 39 for passing the temperature sensor 18. The temperature sensor opening 39 can be used for positioning when the cover plate 31 is installed, that is, the cover plate 31 is positioned relative to the liner 11 by aligning the temperature sensor opening 39 with the temperature sensor 18.

[0166] like Figure 2 and Figure 5 As shown, the central portion 32 of the cover plate 31 is configured with a downwardly projecting protrusion 40. The protrusion 40 is configured to interfere with the backing cover 11 of the cover body 10 when the cover plate 31 is installed upside down, preventing the cover plate 31 from being properly installed on the backing cover 11 and preventing the user from installing the cover plate 31 upside down. For example, the protrusion 40 can be provided around the central portion 32 at a location corresponding to the temperature sensor opening 39 or the cover plate steam passage 38.

[0167] According to the present application, a line contact seal is formed between the sealing ring of the lid and the cooking container. The sealing ring has a small leakage area and is not easy to hide dirt and grime. The appearance is not affected by long-term use. The sealing ring is easy and firm to install.

[0168] The processes and steps described in all the preferred embodiments above are merely examples. Unless adverse effects occur, various processing operations may be performed in a different order from the above process. The order of the steps in the above process may also be increased, combined, or deleted according to actual needs.

[0169] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the art of this application. The terms used herein are merely for describing specific implementation purposes and are not intended to limit this application. 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 is otherwise indicated.

[0170] The present application has been illustrated 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 application is not limited to the above-mentioned embodiments. According to the teachings of the present application, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection claimed by the present application.

Claims

1. A sealing ring for sealing between the cover of a cooking utensil and a cooking container, characterized in that: The sealing ring has a central axis and comprises: a curled portion, which is received in the curled cavity of the cover in an assembled state; and A sealing portion, wherein the upper end of the sealing portion is connected to the rolled portion, and, in the assembled state, the sealing portion extends outward from the rolled cavity, the lower end of the sealing portion is used to contact the radially outward edge of the opening of the cooking container, and the lower end of the sealing portion is configured as a convex curve in the cross-section of the sealing ring through the central axis.

2. The sealing ring according to claim 1, characterized in that: In the cross section passing through the central axis, the rounded portion is curved.

3. The sealing ring according to claim 2, characterized in that: In the cross section through the central axis, the curled portion is configured to bend around a curling axis.

4. The sealing ring according to claim 3, characterized in that: In the cross section passing through the central axis, a circumferential angle of the rolled portion is greater than or equal to 180 degrees.

5. The sealing ring according to claim 1, characterized in that: Inverted teeth are provided on the outer side of the rolled portion, and the inverted teeth are used to increase the resistance of the rolled portion when it moves toward the opening of the rolled cavity.

6. The sealing ring according to claim 1, characterized in that In the cross section passing through the central axis, a corner is formed on the outer side of the rounded portion.

7. The sealing ring according to claim 6, characterized in that: In the cross section passing through the central axis, an outer surface of at least one side of the corner portion includes a straight line.

8. The sealing ring according to claim 7, characterized in that: In the cross section passing through the central axis, outer surfaces on both sides of the corner portion include straight lines.

9. The sealing ring according to any one of claims 1 to 8, characterized in that: One end of the rounded portion is connected to the outer side of the upper end of the sealing portion, and a portion of the rounded portion is lower than the upper surface of the sealing portion.

10. A detachable cover assembly for detachably mounting on a cover of a cooking utensil, characterized in that: The removable cover assembly comprises: A cover plate, comprising: Central Division; and an edge portion connected to the central portion and located on the periphery of the central portion, the edge portion being provided with a rolled cavity portion with an opening, the rolled cavity portion constituting at least a portion of a cavity wall of the rolled cavity, the outer periphery of the rolled cavity portion being used to be connected to the liner; and The sealing ring according to any one of claims 1 to 9, The rolled portion of the sealing ring is located in the rolled cavity, the sealing portion of the sealing ring is located outside the rolled cavity, and the connecting portion between the rolled portion and the sealing portion passes through the opening of the rolled cavity.

11. The removable cover assembly according to claim 10, wherein: In a cross section of the cover plate, the rolled cavity portion is in an arc shape bent around a rolling axis, and the opening is formed between an end edge of the arc and the central portion.

12. The removable cover assembly according to claim 11, wherein: The arc has a lowest position, and a terminal edge of the arc is higher than the lowest position of the arc.

13. The removable cover assembly according to claim 12, wherein: A central angle corresponding to a circumferential distance between the end edge of the arc and the lowest position of the arc is less than or equal to 50°.

14. The removable cover assembly according to claim 13, wherein: A central angle corresponding to a circumferential distance between the terminal edge of the arc and the lowest position of the arc is greater than or equal to 30° and less than or equal to 40°.

15. The removable cover assembly according to claim 10, wherein: On a cross section passing through the central axis of the removable cover assembly, the lower end portion of the sealing portion of the sealing ring protrudes from the lower surface of the cover plate by a distance a1, and 0<a1≤3mm; and / or The distance between the end edge of the rolled cavity and the central portion is 2 mm to 10 mm.

16. The removable cover assembly according to claim 10, wherein: The central portion is configured with a downwardly protruding portion, and the protruding portion is used to interfere with the lining cover of the cover body when the cover plate is reversely installed.

17. The removable cover assembly according to claim 10, wherein: The outer side of the rolled portion of the sealing ring is provided with an inverted tooth, wherein the direction from the root of the inverted tooth to the tip of the inverted tooth is a first direction, and the direction from the inside of the rolled cavity to the outside of the rolled cavity along the axis of the opening of the rolled cavity is a second direction, and the angle between the first direction and the second direction is an acute angle.

18. The removable cover assembly according to any one of claims 10 to 17, wherein: The edge of the central portion has an annular first area, which is constructed to extend upward. The rolled cavity portion is bent downward and then inward relative to the first area. There is a gap between the end edge of the rolled cavity portion and the first area. The first area constitutes a part of the cavity wall of the rolled cavity.

19. The removable cover assembly according to claim 18, wherein: The edge portion further includes a second region located between the rolled cavity portion and the first region, and the second region is configured to extend along a plane.

20. A cover for a cooking utensil, characterized in that: The cover body comprises: Liner cover; and The detachable cover assembly according to any one of claims 10 to 19, wherein the cover plate is detachably connected to the liner cover, and the outer peripheral side of the rolled cavity portion of the cover plate is used to connect to the liner cover.

21. The cover according to claim 20, wherein: A movable buckle assembly is provided on one side of the lining cover along the length direction, for being detachably connected to the edge portion of the cover plate.

22. The cover according to claim 21, wherein: The movable buckle assembly is also used to engage with the pot body of the cooking utensil. The cover body is constructed so that when the cover plate is installed to the lining cover, the cover plate enables the movable buckle assembly to be located in a position engaged with the pot body.

23. The cover according to claim 22, wherein: The movable buckle assembly includes an movable buckle and a spring. The movable buckle is used to connect the cover plate and the pot body. One end of the spring abuts against the movable buckle. The spring is used to make the movable buckle deviate from the position of being engaged with the pot body when the cover plate is not installed on the cover body.

24. The cover according to claim 21, wherein: The other side of the lining cover in the length direction is provided with two receiving grooves spaced apart in the width direction for receiving the curled cavity portion of the cover plate; or The lining cover is provided with a lining cover steam channel for discharging steam, and the central portion of the cover plate is provided with a cover plate steam channel. The lining cover steam channel is used for sealingly sleeved on the outer periphery of the cover plate steam channel.

25. The cover according to any one of claims 20 to 24, characterized in that The lining cover is provided with a temperature sensor, and the central portion of the cover plate is provided with an opening for allowing the temperature sensor to pass through.

26. 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 a radially outwardly extending edge; and The cover according to any one of claims 20 to 25, used to cover the pot body, When the cover body covers the pot body, the lower end portion of the sealing portion contacts the upper surface of the radially outwardly extending edge.

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