Cooking utensil

Abstract

The utility model provides a cooking utensil. The cooking utensil comprises a pot body, a cover body, a buckling piece and a sealing piece. The cover body comprises an inner cover, the inner cover comprises a body part and at least two step parts arranged in the radial direction, the step parts comprise the first step part and the second step part, the first step part is higher than the second step part in the axial direction of the cover body, and a containing cavity is formed in the bottom of the second step part. The buckling piece is movably arranged on the cover body, the buckling piece is suitable for fixing the cover body and the cooker body, and the buckling piece can be clamped on the upper surface of the first step part. The sealing piece is arranged in the containing cavity, and in the state that the buckling piece fixes the cover body and the cooker body, the sealing piece seals the gap between the inner cover and the cooker body. The two step parts respectively play a role in bearing the buckling piece and accommodating the sealing piece, so that the buckling piece and the sealing piece can be better positioned in the assembling process, the overall structural strength is enhanced, and the service life of the inner cover is prolonged.

Description

Technical Field

[0001] This utility model relates to cooking utensils. Background Technology

[0002] Existing cooking appliances use a latch to lock the inner lid and the inner pot in place, with the latch movably connected to the lid. Generally, the inner lid is prone to deformation when subjected to the high temperature and pressure from inside the cooking space. Once the inner lid deforms, the latch cannot maintain a tight lock, causing the pressure cooking function of the appliance to fail.

[0003] Therefore, there is a need to provide a cooking appliance that can at least partially solve the above problems. Utility Model Content

[0004] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section 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.

[0005] To at least partially solve the above problems, this utility model provides a cooking utensil, comprising:

[0006] pot body;

[0007] A lid, which is closable and disposed on the pot body, the lid comprising:

[0008] The inner cover includes a body portion and at least two stepped portions arranged in a radial direction. The stepped portions include a first stepped portion and a second stepped portion. The first stepped portion is higher than the second stepped portion in the axial direction of the cover body, and a receiving cavity is formed at the bottom of the second stepped portion.

[0009] A fastening element, movably disposed on the cover body, and adapted to secure the cover body and the pot body together, the fastening element being capable of engaging with the upper surface of the first step portion; and

[0010] A sealing element is placed inside the receiving cavity, and when the fastener secures the lid and the pot body, the sealing element seals the gap between the inner lid and the pot body.

[0011] According to this utility model, the cooking appliance features a multi-tiered stepped design, which improves the shear resistance of the inner lid, reduces the likelihood of deformation and collapse at the contact point between the inner lid and the fastener, and significantly enhances the structural strength of the inner lid. The higher first step provides a more stable support point for the fastener. The lower second step engages with the sealing element, sealing the inner lid and the inner pot. Compared to an inner lid with only one step and a large height difference, the lower second step accommodates the sealing element, allowing for the selection of a smaller sealing element, thus reducing its weight and cost. Furthermore, the lower second step brings the sealing element closer to the inner pot, ensuring tight contact and a more reliable seal. In this way, the two stepped sections respectively support the fastener and accommodate the sealing element, providing a simple structural and functional division for the inner lid. This not only facilitates better positioning of the fastener and sealing element during assembly, improving assembly efficiency, but also allows for targeted processing and treatment of the two steps to adapt to different working conditions, extending the service life of the inner lid.

[0012] Optionally, the first step portion is located radially outside the second step portion.

[0013] This design places the first step closer to the edge of the inner cover in the radial direction, providing support to the side of the fastener away from the center of the inner cover. This reduces the risk of tilting or warping due to excessive pressure during locking, ensuring that the first step body is evenly stressed when it comes into contact with the fastener, preventing deformation or damage caused by uneven stress. Furthermore, placing the first step on the radially outer side during assembly makes the fastener easier to install and remove. The second step is located on the inner side, closer to the inner pot, allowing the seal to contact the inner pot more tightly, forming an effective seal.

[0014] Optionally, the first step portion includes a first step body, the upper surface of which is perpendicular to the central axis of the cover.

[0015] According to this design, the upper surface of the first step is perpendicular to the central axis of the cover, providing a stable support surface for the fastener.

[0016] Optionally, the width of the first step body is 8-20mm; and / or

[0017] The flatness of the first step body is less than or equal to 2mm.

[0018] According to this design, the first step body can provide a larger support area, making the fastener more stable under pressure and less prone to deformation or damage. The wider first step body ensures that the flatness of its upper surface meets design requirements, thereby ensuring a tight fit and stable connection with the fastener.

[0019] Optionally, the first step portion includes a first flange and a first step body, the first step body having an upper surface that engages with the fastener, the upper end of the first flange being connected to the first step body, and the first flange extending toward the second step portion.

[0020] According to this design, the first flange serves as a transition structure between the first and second steps, which can enhance the structural stability of the entire inner cover.

[0021] Optionally, the first step portion further includes a third flange, which is connected to the first step body and is disposed opposite to the first flange.

[0022] According to this design, the first and third flanges provide strong support for the main body of the first step, preventing deformation under high pressure. Furthermore, the three flanges form an interlocking structure, facilitating connection to external structures and simplifying installation.

[0023] Optionally, the height difference between the third flange and the first flange is 0-10mm; and / or

[0024] The height of the third flange is 2-12mm.

[0025] According to this scheme, the third flange of the first step is similar in height and has the same strength as the first flange, thereby ensuring the flatness of the main body of the first step and preventing deformation under stress.

[0026] Optionally, a recessed portion is provided between the first flange and the second step portion, the recessed portion being lower than the second step body.

[0027] According to this solution, by setting the recessed part, while ensuring the height of the inner cover assembly, compared to the second step main body being directly connected laterally to the first flange, this setting increases the height of the first flange, and the inner cover forms multiple bending areas, thereby enhancing the strength of the first step part and the inner cover as a whole, and also facilitating the processing and differentiation of the two step parts.

[0028] Optionally, the second step portion includes a second step body, the lower surface of the second step body is a plane or an arc-shaped surface, and the lower surface of the second step body is sealed to the sealing element.

[0029] According to this solution, the lower surface of the second step body is a flat or curved surface, which can ensure tight contact between the seal and the second step body. Moreover, the curved surface can limit the deformation of the seal or abut against the seal, thereby preventing the leakage of steam, liquid or gas.

[0030] Optionally, the width of the second step body is 4-15mm.

[0031] According to this scheme, the width setting of the second step body is conducive to pressing the sealing element, facilitating its molding, and also ensuring that the second step body has a certain strength and reducing deformation.

[0032] Optionally, the second step portion further includes a second flange, the lower end of which is connected to the body portion, and the upper end of which is connected to the second step body.

[0033] According to this design, the second flange serves as a transition structure between the second step and the main body, which can enhance the structural stability of the entire inner cover.

[0034] Optionally, the ratio of the height of the second step to the height of the first step is 0.5-1.5.

[0035] According to this plan, the height ratio of the first step and the second step is within this range. Under the premise of ensuring structural strength, stability and easy installation of seals, the inner cover can be controlled within a certain height range.

[0036] Optionally, the pot body has a snap-fit ​​edge;

[0037] The fastening member includes an upper fastening portion, a lower fastening portion, and a middle portion. The upper fastening portion and the lower fastening portion extend from the upper and lower ends of the middle portion toward one side, respectively. In the locked position:

[0038] The upper fastening part is engaged with the upper surface of the first step part;

[0039] The lower fastening part is engaged with the lower surface of the fastening edge;

[0040] The inner edge of the lower fastening part is located within the first step portion in the orthographic projection of the inner cover, and the radial distance between the inner edge of the lower fastening part in the orthographic projection of the inner cover and the middle circle of the first step portion is 0-5mm.

[0041] According to this solution, the engagement point of the lower fastener is near the middle circle of the first step portion that mates with the upper fastener portion, thus forming a self-locking structure that ensures the fastener remains horizontal and will not tilt or disengage, and that the fastener can reliably engage the engagement edge.

[0042] Optionally, the cover further includes an inner cover mounting base, the inner cover mounting base including an inner cover mounting base body and supporting ribs disposed on the surface of the inner cover mounting base body, wherein,

[0043] The inner cover mounting body and / or the support rib abut against the inner cover.

[0044] According to this solution, the addition of support ribs can significantly improve the strength and rigidity of the inner cover mounting base, enabling it to withstand greater loads and impacts, and ensuring the stability and safety of the inner cover during use.

[0045] Optionally, the supporting rib includes a first supporting rib, the projection of the first supporting rib along the central axis of the cover body is located within the projection of the first step portion along the central axis, and the first supporting rib abuts against the lower surface of the first step portion.

[0046] According to this scheme, a stable support relationship is formed between the first support rib and the first step, which enhances the stability of the entire structure.

[0047] Optionally, the support rib includes a second support rib, which is placed within the receiving cavity, and the seal is clamped between the second step portion and the second support rib.

[0048] According to this plan, the second support rib ensures that the seal is adequately supported and fixed, preventing displacement or damage during use.

[0049] Optionally, the supporting rib includes a third supporting rib, and the first stepped portion includes a third flange, the third flange being located between the first supporting rib and the third supporting rib.

[0050] According to this scheme, the supporting ribs not only provide support for the inner cover, but also ensure a certain fit between the inner cover and the mounting groove.

[0051] Optionally, the pot body has a snap-fit ​​edge formed in the inner pot or the heat insulation cover;

[0052] When the lid is closed on the pot body, the seal seals the gap between the inner lid and the inner pot.

[0053] According to this solution, the fasteners attach to the inner pot or the insulation cover, meeting various cooking needs. The sealing elements ensure a relatively sealed cooking environment during cooking. Attached Figure Description

[0054] The following drawings, which illustrate embodiments of the present invention, are incorporated herein as part of the present invention for understanding the invention. The drawings show embodiments of the present invention and their descriptions, serving to explain the principles of the present invention. In the drawings,

[0055] Figure 1 This is a three-dimensional exploded view of a cooking appliance according to a preferred embodiment of the present invention.

[0056] Figure 2 This is a three-dimensional cross-sectional view of a cooking utensil according to a preferred embodiment of the present invention.

[0057] Figure 3 This is a three-dimensional cross-sectional view of a preferred embodiment of the present invention, showing the detachable lid and the inner pot.

[0058] Figure 4 for Figure 3 An enlarged schematic diagram of part A in the diagram;

[0059] Figure 5 This is a partially enlarged cross-sectional view of a preferred embodiment of the present invention, showing the removable cover.

[0060] Figure 6 This is a three-dimensional exploded cross-sectional view of a preferred embodiment of the present invention, showing a detachable cover, a detachable cover mounting base, and a sealing element.

[0061] Explanation of reference numerals in the attached figures

[0062] 100:Cooker

[0063] 110: Pot Inner Wall

[0064] 111: Edge

[0065] 120: middle plate

[0066] 130: Base

[0067] 140: Thermal Cover

[0068] 200: Cover

[0069] 210: Removable lid

[0070] 211: Ontology Department

[0071] 212: First step

[0072] 2121: Main body of the first step

[0073] 2122: First flip

[0074] 2123: Third flip

[0075] 213: Second Step

[0076] 2131: Main body of the second stage

[0077] 2132: Second flip

[0078] 220: Removable cover mounting base

[0079] 221: Detachable cover mounting base body

[0080] 2221: First supporting reinforcement bar

[0081] 2222: Second supporting reinforcement bar

[0082] 2223: Third supporting reinforcement bar

[0083] 2224: Fourth supporting reinforcement bar

[0084] 230: Seals

[0085] 240: Liner

[0086] 300: Fastener

[0087] 310: Upper snap-fit ​​part

[0088] 320: Middle section

[0089] 330: Lower snap-fit ​​part

[0090] 400: Rotating frame Detailed Implementation

[0091] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with embodiments of the present invention.

[0092] In this document, ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0093] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0094] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0095] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0096] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0097] The following will combine Figures 1 to 6 A detailed description of the cooking utensil according to this utility model is provided.

[0098] like Figures 1 to 2 As shown, the cooking appliance of this utility model includes a lid 200 and a pot body 100. The pot body 100 is used for cooking food, and the lid 200 is used to cover the pot body 100. For example, the lid 200 is connected to the pot body 100 in an openable and closable manner to cover the pot body 100. When the lid 200 covers the pot body 100, a cooking space is formed between the lid 200 and the pot body 100. Optionally, when the lid 200 covers the pot body 100, the lid 200 is sealed to the inner pot 110.

[0099] The pot body 100 is typically a rounded rectangular parallelepiped shape and has a cylindrical inner pot storage section. The pot body 100 includes an inner pot 110, which can be freely inserted into or removed from the inner pot storage section for easy cleaning. The inner pot 110 is typically made of metal and is used to hold materials to be heated, such as rice or soup. The pot body 100 also includes a middle plate 120 and a base 130. The middle plate 120 is located at the top of the pot body 100, and the base 130 is located on the sides and bottom of the pot body 100. The middle plate 120 is fixedly mounted to the base 130.

[0100] To reduce heat loss during cooking, the pot body 100 also includes a heat insulation cover 140 disposed on the outer periphery of the inner pot 110. The heat insulation cover 140 is fitted onto the outer periphery of the inner pot 110 and is located between the inner pot 110 and the base 130.

[0101] The cover 200 includes a top cover, a liner 240, and an inner cover; optionally, the inner cover is a removable cover 210. The top cover is located on the outermost side of the cover 200, forming the outer shell of the cover 200. The liner 240 is located below the top cover and connected to it. For example, the liner 240 can be connected to the top cover by fasteners or snaps; the top cover and the liner 240 constitute the upper cover assembly. The upper cover assembly is mainly used to centrally mount various functional components of the cover 200 that sense and control the working status of the cooking appliance, such as sensors. The removable cover 210 is located on the innermost side of the cover 200 and is located below the liner 240. The removable cover 210 is detachably connected to the liner 240, for example, by snaps, for easy cleaning and replacement. The removable cover 210 is oriented towards the cooking space; that is, when the cover 200 is in the closed position, the removable cover 210 is directly above the cooking space.

[0102] The cooking appliance also includes a locking assembly. The locking assembly includes a fastener 300, a rotating bracket 400, and a drive component. The fastener 300 is movably disposed on the lid 200. The main function of the fastener 300 is to achieve locking and unlocking between the lid 200 and the pot body 100 through its movement.

[0103] In this design, the fastener 300 can engage with the edge 111 of the inner pot 110 or the edge of the insulation cover 140. For example, in a rice cooker, the fastener 300 can engage with the edge 111 of the inner pot 110. For example, in an electric pressure cooker, the edge of the insulation cover 140 is at least partially exposed, and the fastener 300 can engage with the edge of the insulation cover 140. For ease of explanation, the following description focuses on the fastener 300 engaging with the edge 111 of the inner pot 110.

[0104] Optionally, the fastening member 300 is connected to the rotating frame 400. Through the driving of the driving member, the fastening member 300 can move and lock or release the cooking pot body 100. Through the setting of the rotating frame 400, multiple fastening members 300 can act simultaneously. Optionally, the fastening member 300 can move in the radial direction of the cover body 200 to lock or release the edge 111 of the inner pot 110, and the locking and unlocking methods are simple and flexible. In this solution, the radial direction of the cover body 200 refers to the straight-line direction starting from the center of the cover body or the axis where the center point is located and perpendicular to this axis. During the cooking process, when it is necessary to lock the cover body 200 and the cooking pot body 100, the driving member acts to generate a driving force, and the driving force is transmitted to the fastening member 300 through the rotating frame 400, causing the fastening member 300 to move towards the center of the cooking pot body 100. When the fastening member 300 moves to a suitable position, the cover body 200 and the cooking pot body 100 are firmly locked together. Optionally, when the fastening member 300 is in the locking position, the fastening member 300 can be snap-connected to the edge 111 of the inner pot 110. When it is necessary to open the cover body 200, the driving member drives the rotating frame 400 to act in the reverse direction, causing the fastening member 300 to move in the direction away from the center of the cooking pot body 100. When the fastening member 300 moves to a suitable position, the fastening member 300 releases the cooperation with the cooking pot body 100, and the cover body 200 can be opened, and the fastening member 300 is in the unlocking position.

[0105] As Figures 1 to 4 shown, the fastening member 300 includes an upper fastening portion 310, a lower fastening portion 330 and an intermediate portion 320. The upper fastening portion 310 and the lower fastening portion 330 respectively extend from the upper and lower ends of the intermediate portion 320 to one side thereof. The fastening member 300 forms a structure similar to a "匚" shape, so as to be able to form a certain clamping space. The cooperative setting of the upper fastening portion 310 and the lower fastening portion 330 provides clamping in two directions, upward and downward, for the cover body 200 and the cooking pot body 100, improves the stability of the connection, and ensures good sealing performance during pressure cooking. Optionally, the upper fastening portion 310 is movably clamped above the detachable cover 210, and the lower fastening portion 330 can be selectively connected to or disengaged from the inner pot 110. Specifically, the lower fastening portion 330 can be clamped below the edge 111 of the inner pot 110 to switch between the locking position and the unlocking position.

[0106] Optionally, the fastening members 300 are evenly distributed along the circumferential direction of the cover body 200. Ensure that the cover body 200 receives uniform pressure and support at multiple acting points when closed, thereby improving stability. In the present utility model, within a limited space, through reasonable quantity and angle arrangements, the space at the edge of the cover body 200 can be utilized maximally, so that the fastening members 300 can meet the functional requirements without being crowded.

[0107] When the cooking appliance is in operation, especially during pressure cooking, the high temperature and pressure environment inside the pot body 100 exerts a pushing force on the inner lid of the lid body 200. Optionally, the inner lid is a removable lid 210. The removable lid 210 is located directly above the inner pot 110 and will withstand a huge upward pushing force from inside the cooking space. The fastening element 300 ensures a sealed connection between the removable lid 210 and the inner pot 110 during cooking. The existing removable lid 210 has a single-step edge at the contact point with the fastening element, resulting in weak structural strength. Under pressure, it is prone to denting and deformation. This deformation not only affects the appearance and lifespan of the cooking appliance but, more importantly, may lead to seal failure, causing safety issues. This could result in the fastening element 300 disengaging or bursting, causing the pressure cooking function of the cooking appliance to fail. The large height difference of the single step in seal 230 results in a large height dimension for seal 230, which not only increases the weight and cost of the part but may also affect the installation and sealing effect of seal 230. A large-dimensional seal 230 is more difficult to install, making precise alignment and installation more challenging, increasing assembly complexity and time costs.

[0108] Reference Figures 3 to 5As shown, the detachable cover 210 of this design includes a main body 211 and at least two stepped portions arranged radially. The multi-level stepped portions are sequentially connected and form a single unit with the main body 211. The multi-level stepped arrangement improves the shear resistance of the detachable cover 210, reduces the likelihood of deformation and collapse at the contact point between the detachable cover 210 and the fastener 300, and significantly enhances the structural strength of the detachable cover 210. The detachable cover 210 can better maintain structural stability when subjected to high temperature and high pressure thrust. Optionally, along the axial direction of the cover 200, the highest stepped portion is the first stepped portion 212, and the stepped portion also includes a second stepped portion 213 with a lower height than the first stepped portion 212. The higher first stepped portion 212 provides a more stable support point for the fastener 300. In this design, the axial direction of the cover 200 refers to the direction along the axis from the center of the cover or the axis where the center point is located. The lower second step 213 mates with the seal 230, providing a seal between the removable cover 210 and the inner pot 110. Compared to an inner cover with only one step and a large height difference, the lower second step 213 accommodates the seal 230, allowing for the selection of a seal 230 with a smaller height dimension, while also reducing the weight and cost of the seal 230. Furthermore, the lower second step 213 brings the seal 230 closer to the inner pot 110, ensuring tight contact and a more reliable seal. Thus, the two steps respectively support the fastener 300 and accommodate the seal 230, providing a simple structural and functional division for the inner cover. This not only facilitates better positioning of the fastener 300 and seal 230 during assembly, improving assembly efficiency, but also allows for subsequent targeted processing and treatment of the two steps, enabling them to adapt to different working conditions and extending the service life of the inner cover. The presence of multiple steps provides more reference structures.

[0109] Based on the above embodiments, the processing technology for the stepped portion is described below.

[0110] After the removable cover 210 is formed in one piece, the first step portion 212 can be quenched and tempered. Quenching can improve the hardness and strength of the material, while tempering can eliminate the internal stress and brittleness generated during quenching, so that the first step portion maintains high strength while having good toughness and fatigue resistance. At the same time, the second step portion 213 can be treated with processes such as sandblasting, grinding, or polishing to ensure good surface roughness between the second step portion 213 and the sealing element 230, so that the sealing element 230 can fit tightly and form a good seal.

[0111] Optionally, the fastener 300 can be engaged with the upper surface of the first step portion 212. Since the first step portion 212 is the highest part of the removable cover 210, the fastener 300 can more easily engage with it to form a secure holding structure, thereby improving the sealing performance of the cooking appliance.

[0112] Optionally, a receiving cavity is formed at the bottom of the second step portion 213. The sealing member 230 is held in the receiving cavity and is sealed to the removable cover 210. When the cover 200 is closed to the pot body 100, the sealing member 230 is sealed to the pot body 100. Specifically, the sealing member 230 is sealed to the inner pot 110. To facilitate positioning and limit its shape, the sealing member 230 needs to be accommodated inside the step portion. To ensure sealing performance, the top of the sealing member 230 preferably fits against the lower surface of the step portion. Moreover, to ensure strength, the inner cover of a single-step design needs to extend the dimension of the step portion in the height direction. Therefore, if a single-step design is used in the prior art, a taller sealing member is required. In this solution, compared to a single-step design, a multi-step design can have a smaller height difference. The sealing member 230 can cooperate with a lower step, thereby reducing the height dimension of the sealing member 230 and reducing the weight and cost of the parts. In this solution, by holding the seal 230 to the lower surface of the second step 213 and sealing it with the removable cover 210 and the inner pot 110, the leakage of steam or liquid during cooking can be effectively prevented, thereby achieving pressure cooking.

[0113] In some embodiments of this utility model, the inner edge of the lower fastening portion 330, projected onto the removable cover 210, lies within the first stepped portion 212, and the distance between the inner edge of the lower fastening portion 330 projected onto the removable cover 210 and the central circle of the first stepped portion 212 is 0-5 mm. In this embodiment, the first stepped portion 212 is a section of a circular ring structure. The central circle of the first stepped portion 212 is located between the inner and outer rings of the ring, and this central circle is concentric with both the inner and outer rings, with its radius equal to the arithmetic mean of the inner and outer ring radii. Optionally, the radial distance between the inner edge of the lower fastening portion 330 projected onto the removable cover 210 and the central circle of the first stepped portion 212 can be, but is not limited to, 0 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, etc., preferably 2 mm. The engagement point of the lower engagement part 330 is near the middle circle of the first step part 212 that mates with the upper engagement part 310, thus forming a self-locking structure that ensures the engagement part 300 remains horizontal and will not tilt or disengage, and can reliably hold the inner pot 110.

[0114] In some embodiments of this invention, the first step portion 212 is located radially outward of the second step portion 213. This ensures that the fastening member 300 connected to the first step portion 212 and the sealing member 230 connected to the second step portion 213 do not interfere with each other spatially, thereby maintaining the compactness and neatness of the structure. Furthermore, the radially outward location of the step portion of the fastening member 300 allows it to better withstand pressure from between the removable cover 210 and the inner pot 110, thereby enhancing the stability of the structure.

[0115] In some embodiments of this utility model, the first step portion 212 includes a first step body 2121. The first step body 2121 is perpendicular to the central axis of the cover 200, and the upper surface of the first step body 2121 is adapted to abut against the fastener 300. Specifically, the upper surface of the first step body 2121 is a plane. This design ensures that the first step body 2121 can be evenly stressed when abutting against the fastener 300, preventing deformation or damage caused by uneven stress. It can be understood that the first step body 2121 is perpendicular to the central axis of the cover 200, that is, the first step body 2121 is a horizontal plane. The first step body 2121 can serve as a positioning reference for the fastener 300, ensuring that the fastener 300 can be accurately aligned and fixed in a predetermined position during installation.

[0116] Optionally, the width of the first step body 2121 in the radial direction is 8-20mm, ensuring that the fastener 300 always abuts against the first step body 2121 during movement. This size range provides a larger support area, making the structure more stable under pressure and less prone to deformation or damage. Optionally, the width of the first step body 2121 in the radial direction can be, but is not limited to, 8mm, 8.5mm, 9mm, 10mm, 12mm, 15mm, 17mm, 19mm, 20mm, etc., preferably 15mm. Optionally, the flatness of the first step body 2121 is less than or equal to 2mm. A wider first step body 2121 ensures that the flatness of its upper surface meets design requirements, thereby ensuring a tight fit and stable connection with the fastener 300.

[0117] In some embodiments of this invention, the second step portion 213 includes a second step body 2131. The second step body 2131 forms the top wall of the receiving cavity. The lower surface of the second step body 2131 is a flat or curved surface, and the lower surface of the second step body 2131 is in a sealing connection with the seal 230. The flat or curved lower surface of the second step body 2131 ensures tight contact between the seal 230 and the second step body 2131, thereby preventing leakage of steam, liquid, or gas. The seal 230 is typically made of a soft and durable material, such as silicone. The flat or curved second step body 2131 better accommodates the properties of this material, ensuring that the seal 230 is not subjected to excessive compression or stretching during installation and use, thereby extending its service life.

[0118] Optionally, the width of the second step body 2131 is 4-15mm. Optionally, the width of the second step body 2131 can be, but is not limited to, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 15mm, etc., preferably 10mm. A width of 4-15mm facilitates the compression of the sealing element 230, providing a suitable compression space for the sealing element 230, thereby ensuring its effective sealing.

[0119] In some embodiments of this utility model, the first step portion 212 further includes a first flange 2122, the lower end of which is connected to the second step portion 213, and the upper end of which is connected to the first step body 2121. The first flange 2122 is angled to the first step body 2121. The first flange 2122 is inclined or perpendicular to the first step body 2121. The first flange 2122 serves as a transition structure between the first step portion 212 and the second step portion 213, thereby enhancing the structural stability of the entire detachable cover 210.

[0120] In some embodiments of this utility model, the second step portion 213 further includes a second flange 2132. The lower end of the second flange 2132 is connected to the body portion 211, and the upper end of the second flange 2132 is connected to the second step body 2131. The second flange 2132 forms the sidewall of the receiving cavity. The second flange 2132 is set at an angle to the second step body 2131. The second flange 2132 is inclined or perpendicular to the second step body 2131. As a transition structure between the second step portion 213 and the body portion, the second flange 2132 can enhance the structural stability of the entire removable cover 210.

[0121] The first step portion 212 further includes a third flanging 2123. The third flanging 2123 is connected to the first step main body 2121, and the first flanging 2122 and the third flanging 2123 are disposed opposite to each other. According to this solution, the first flanging 2122, the third flanging 2123 and the first step main body 2121 are closely connected together to form a structure similar to a "冂" shape, so as to facilitate connection to an external structure and simplify the installation and mating structure.

[0122] During the working process of the inner cover, it bears the pressure inside the pot liner. Mainly, the inner liner main body part will be subject to a relatively large pressure. In order to reduce the pressure transmitted to the first step main body and the second step main body, the first flanging and the second flanging are provided to better absorb the pressure and prevent the two main body areas from being directly affected by the main body part and deformed. When the detachable cover 210 is installed in place, the flanging part can closely cooperate with the fastening member 300 and the sealing member 230 to ensure the stability and sealing performance of the entire structure. At the same time, the individual heights of the first flanging 2122 and the second flanging 2132 are relatively small, and it is not easy to deform or be damaged.

[0123] Based on the above embodiment, the height difference between the third flanging 2123 and the first flanging 2122 is 0 - 10 mm. Optionally, the height difference between the third flanging 2123 and the first flanging 2122 can be but is not limited to 0 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, etc., and preferably 5 mm. That is, the third flanging 2123 of the first step portion 212 is similar in height to the first flanging 2122 and has the same strength, so as to ensure the flatness of the first step main body 2121. During the working process, even if some areas are deformed by force, the area in contact with the fastening member can be kept as straight as possible, which is beneficial to the movement of the fastening member and the normal use of the equipment. When the third flanging 2123 and the first flanging 2122 have the same strength, they can jointly bear the pressure from the fastening member 300, so as to ensure that the fastening member 300 can remain horizontal and will not tilt and disengage, realizing stable fastening. Optionally, the height of the third flanging 2123 is 2 - 12 mm. Optionally, the height of the third flanging 2123 can be but is not limited to 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, etc., and preferably 6 mm. The relatively large size of the third flanging 2123 can strengthen the structural strength.

[0124] In some embodiments of this utility model, a recessed portion is provided between the first flange 2122 and the second step portion 213, and the recessed portion is lower than the second step body 2131. By providing the recessed portion, while ensuring the overall height of the removable cover 210, compared to the second step body 2131 being directly laterally connected to the first flange 2122, this arrangement increases the height of the first flange 2122, and the removable cover 210 forms multiple bending areas, thereby enhancing the overall strength of the step portion and the removable cover 210, and also facilitating processing and differentiation of the two step portions. The shape of the recessed portion can be flexibly selected according to actual processing and other structural arrangements, for example... Figure 4 and Figure 5 These are two different shapes of recesses, not just one. The recesses can also be adjusted according to actual installation needs. For example, when it is necessary to connect or fix them to other components, the recesses can provide additional connection points or fixing surfaces, making the installation process more flexible and convenient, and improving the strength and stability of the overall structure.

[0125] Reference Figure 5 The ratio of the height h2 of the second step 213 to the height h1 of the first step 212 is 0.5-1.5. Optionally, the ratio of the height h2 of the second step 213 to the height h1 of the first step 212 can be, but is not limited to, 0.5, 0.8, 1, 1.3, 1.5, etc., and is preferably 1. With the height ratio of the first step 212 and the second step 213 within this range, the removable cover 210 can be controlled within a certain height range while ensuring structural strength, stability, and ease of installation of the sealing element.

[0126] To facilitate the removal of the removable cover 210 and to enhance its strength, the cover body 200 also includes a removable cover mounting base 220. The removable cover 210 is mounted to the cover body 200 via the removable cover mounting base 220. The removable cover 210 is fixedly connected to the removable cover mounting base 220. Optionally, the removable cover 210 is fixedly connected to the removable cover mounting base 220 with a spring fastener. The fastener is at least one of screws, rivets, pins, and clips.

[0127] Reference Figure 4 and Figure 6In some embodiments of this utility model, the removable cover mounting base 220 includes a removable cover mounting base body 221 and supporting ribs protruding from the surface of the removable cover mounting base body 221. The supporting ribs significantly improve the strength and rigidity of the removable cover mounting base 220, enabling it to withstand greater loads and impacts, and ensuring the stability and safety of the removable cover 210 during use. At least one of the removable cover mounting base body 221 and the supporting ribs abuts against the removable cover 210. This abutting connection provides support for the removable cover 210, ensuring that the removable cover 210 is stably and firmly fixed to the removable cover mounting base body 221 while maintaining sealing performance.

[0128] The removable cover mounting base body 221 is used to support and fix the removable cover 210. Optionally, the removable cover mounting base body 221 is constructed in a ring shape. Both the first step portion 212 and the second step portion 213 are ring-shaped, resulting in high structural strength. The fit between the step portion of the removable cover 210 and the removable cover mounting base body 221 is strong.

[0129] Support ribs are structures protruding from the surface of the removable cover mounting body 221. Their main function is to enhance the strength and rigidity of the mounting body, preventing deformation or damage during installation and use. The number and layout of the support ribs are typically determined based on the size, weight, and usage requirements of the removable cover 210. Optionally, the support ribs may be ring-shaped.

[0130] During use, the lid 200 is subjected to high pressure from the cooking space. The ring-shaped design better fits the shape of the inner pot 110, and the ring-shaped detachable lid mounting base 220 fits tightly with the opening of the inner pot 110, ensuring even force distribution under high pressure and enhancing overall stability and sealing. Compared to other shapes, the ring-shaped structure saves materials and reduces production costs while meeting functional requirements.

[0131] In some embodiments of this utility model, the support ribs include a first support rib 2221 and a second support rib 2222. The projection of the first support rib 2221 along the central axis of the cover 200 lies within the projection of the first step portion 212 along its central axis, and the first support rib 2221 abuts against the lower surface of the first step portion 212. This ensures a stable support relationship between the first support rib 2221 and the first step portion 212, enhancing the stability of the entire structure. The projection of the second support rib 2222 along the central axis of the cover 200 lies within the projection of the second step portion 213 along its central axis, and the sealing member 230 is clamped between the second step portion 213 and the second support rib 2222. This ensures that the sealing member 230 is adequately supported and fixed, preventing displacement or damage during use. It also allows the sealing member 230 to fit tightly against the second step portion 213, enhancing the sealing effect. Optionally, the seal 230 is fitted onto the second support rib 2222 and then installed into the receiving cavity of the second step portion 213, which facilitates positioning and assembly and makes it easy to clean the seal during use.

[0132] Based on the above embodiment, the first support rib 2221 abuts against the middle of the lower surface of the first step body 2121. A stable support relationship is formed between the first support rib 2221 and the first step body 2121.

[0133] The third flange 2123 is located between the first support rib 2221 and the third support rib 2223. That is, the first support rib 2221 and the third support rib 2223 form an alternating mounting groove. While supporting the removable cover 210, the support ribs, through the mounting groove, create a certain fit between the removable cover 210 and the mounting groove. Therefore, the third flange 2123 of the removable cover 210 can be stably installed in the mounting groove and forms a firm connection with the removable cover mounting base 220, preventing it from shaking or falling off. This enhances structural strength while simplifying the installation process of the removable cover 210; simply align the third flange 2123 with the mounting groove and apply appropriate force to install it in place, without the need for additional tools or complex procedures. The support ribs, located within the mounting groove, limit the deformation of the third flange 2123 and provide a certain buffering effect, reducing the impact force of the snap-fit ​​movement and protecting the third flange 2123.

[0134] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0135] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A cooking utensil, characterized in that, include: pot body; A lid, which is closable and disposed on the pot body, the lid comprising: The inner cover includes a body portion and at least two stepped portions arranged in a radial direction. The stepped portions include a first stepped portion and a second stepped portion. The first stepped portion is higher than the second stepped portion in the axial direction of the cover body, and a receiving cavity is formed at the bottom of the second stepped portion. A fastening element is movably disposed on the cover body and is adapted to fix the cover body and the pot body, and the fastening element can be engaged with the upper surface of the first step portion; as well as A sealing element is placed inside the receiving cavity, and when the fastener secures the lid and the pot body, the sealing element seals the gap between the inner lid and the pot body.

2. The cooking utensil according to claim 1, characterized in that, The first step portion is located radially outside the second step portion.

3. The cooking utensil according to claim 1, characterized in that, The first step portion includes a first step body, the upper surface of which is perpendicular to the central axis of the cover.

4. The cooking utensil according to claim 3, characterized in that, The width of the first step body is 8-20mm; and / or The flatness of the first step body is less than or equal to 2mm.

5. The cooking utensil according to claim 1, characterized in that, The first step portion includes a first flange and a first step body. The first step body has an upper surface that engages with the fastener. The upper end of the first flange is connected to the first step body, and the first flange extends toward the second step portion.

6. The cooking utensil according to claim 5, characterized in that, The first step portion further includes a third flange, which is connected to the first step body and is disposed opposite to the first flange. The height difference between the third flange and the first flange is 0-10mm; and / or The height of the third flange is 2-12mm.

7. The cooking utensil according to claim 5, characterized in that, A recessed portion is connected between the first flange and the second step portion, and the recessed portion is lower than the second step portion.

8. The cooking utensil according to claim 2, characterized in that, The second step portion includes a second step body, the lower surface of the second step body is a plane or an arc-shaped surface, and the lower surface of the second step body is sealed to the sealing element.

9. The cooking utensil according to claim 8, characterized in that, The width of the second step body is 4-15mm.

10. The cooking utensil according to claim 8, characterized in that, The second step portion also includes a second flange, the lower end of which is connected to the body portion, and the upper end of which is connected to the second step body.

11. The cooking utensil according to claim 1, characterized in that, The ratio of the height of the second step to the height of the first step is 0.5-1.

5.

12. The cooking utensil according to claim 1, characterized in that, The pot body has a snap-fit ​​edge; The fastening member includes an upper fastening portion, a lower fastening portion, and a middle portion. The upper fastening portion and the lower fastening portion extend from the upper and lower ends of the middle portion toward one side, respectively. In the locked position: The upper fastening part is engaged with the upper surface of the first step part; The lower fastening part is engaged with the lower surface of the fastening edge; The inner edge of the lower fastening part is located within the first step portion in the orthographic projection of the inner cover, and the radial distance between the inner edge of the lower fastening part in the orthographic projection of the inner cover and the middle circle of the first step portion is 0-5mm.

13. The cooking utensil according to any one of claims 1 to 12, characterized in that, The cover also includes an inner cover mounting base, which includes an inner cover mounting base body and supporting ribs protruding from the surface of the inner cover mounting base body. The inner cover mounting body and / or the support rib abut against the inner cover.

14. The cooking utensil according to claim 13, characterized in that, The supporting ribs include: A first supporting rib, the projection of the first supporting rib along the central axis of the cover body lies within the projection of the first stepped portion along the central axis, and the first supporting rib abuts against the lower surface of the first stepped portion; and / or A second support rib is placed within the receiving cavity, and the sealing member is clamped between the second stepped portion and the second support rib; and / or The third support rib, the first step portion includes a third flange, the third flange being located between the first support rib and the third support rib.

15. The cooking utensil according to claim 1, characterized in that, The pot body has a snap-fit ​​edge, which is formed in the inner pot or the heat insulation cover; When the lid is closed on the pot body, the seal seals the gap between the inner lid and the inner pot.

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