Electric rice cooker with extension protection

Abstract

The utility model discloses a take out protection's electric rice cooker relates to cooking utensil technical field, including the body of pot and the pot cover, the body of pot is provided with the inner bag, is provided with the first docking portion on the inner bag, the first docking portion sets up the extension part of the inner bag, the position of corresponding first docking portion is provided with the second docking portion on the pot cover, and the first docking portion and second docking portion docking make the pot cover assemble on the inner bag, and the cavity is formed between the pot cover and the inner bag, the cavity sets up one side position at first docking portion and second docking portion, and through above -mentioned structure can solve the problem of not close of electric rice cooker in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of cooking appliance technology, and in particular to a rice cooker with extended protection. Background Technology

[0002] As a common household cooking appliance, the core function of a rice cooker is to cook food by heating the inner pot. During the cooking process, especially at the boiling stage, a large amount of steam and rice soup foam are generated inside the pot. If these substances leak from the joint between the lid and the inner pot, they will not only dirty the outside of the pot and the countertop, increasing the user's cleaning burden, but may also pose a safety hazard due to the hot liquid overflowing.

[0003] In existing technologies, the sealing methods between the lid and inner pot of rice cookers are mostly simple planar pressing or vertical insertion structures. For example, a common design is to set a horizontal annular plane at the top opening edge of the inner pot, with a corresponding sealing ring on the edge of the lid pressing against it. Although this structure is simple, it has obvious drawbacks: First, the sealing effect of planar pressing is highly dependent on manufacturing precision and the elasticity of the sealing ring. After long-term use, the sealing ring will age or deform, easily leading to steam and liquid leakage. Second, when the pressure inside the pot increases instantaneously, the planar pressing structure is easily pushed open, causing "overflow". Third, this structure lacks an effective drainage and collection mechanism at the joint. Once a leak occurs, the liquid will flow directly down the outer wall of the pot, making it difficult to clean.

[0004] Another improved design is to use a vertical or near-vertical stepped docking structure to enhance the positioning effect. However, this structure is prone to interference and bumps when opening and closing the lid, resulting in a poor user experience. At the same time, the area near the docking point often forms dead corners or narrow gaps, which are not only difficult to clean and prone to bacterial growth, but also cannot serve as an effective buffer cavity to temporarily contain and condense overflowing steam and liquid.

[0005] Therefore, existing rice cooker technologies still need improvement in terms of the sealing between the lid and the inner pot, spill prevention, and ease of cleaning. There is an urgent need for a new rice cooker structure that can achieve a more reliable and tighter seal, and effectively collect and guide spilled liquid, thereby improving product safety, durability, and user experience. Utility Model Content

[0006] This invention provides a rice cooker with extended protection, which can solve the problem of poor sealing in existing rice cookers.

[0007] To solve the above problems, this utility model provides a pot lid with extended protection, comprising: The pot body is provided with an inner liner, and a first docking part is provided on the inner liner, which is located on the outer extension of the inner liner; The pot lid has a second docking part at a position corresponding to the first docking part. The first docking part and the second docking part dock together so that the pot lid is assembled on the inner pot. A cavity is formed between the pot lid and the inner pot. The cavity is located on one side of the first docking part and the second docking part.

[0008] The electric rice cooker with extended protection provided by this utility model has the following advantages compared with the prior art: This rice cooker includes a pot body and a lid. The pot body contains an inner pot, with a first mating part on its top edge, formed by stamping or casting to create a ring-shaped protrusion or groove. A second mating part is located on the lid, formed by injection molding or stamping to create a matching ring structure. When the lid is closed, the first and second mating parts engage, securing the lid to the inner pot. This engagement creates a ring-shaped cavity between the lid and the inner pot, located on one side of the first and second mating parts. This cavity collects steam or spilled liquid. The design of the mating parts and the cavity effectively prevents steam and liquid from leaking out of the gap between the lid and the inner pot during cooking, improving sealing and safety. The cavity also acts as a buffer zone, reducing pressure fluctuations and preventing sudden splashing when the lid is opened, while also reducing noise.

[0009] Preferably, the first mating part is configured as a first abutting slope, the first abutting slope is arranged around the top edge of the inner liner, and a first abutting angle is formed between the first abutting slope and the vertical direction.

[0010] Preferably, the first contact angle range is controlled between 30 degrees and 60 degrees.

[0011] Preferably, the second mating part is configured as a second abutting slope, the second abutting slope is arranged around the edge of the pot lid, and a second abutting angle is formed between the second abutting slope and the vertical direction.

[0012] Preferably, the second abutment angle is controlled within the range of 30 degrees to 60 degrees, and the first abutment slope and the second abutment slope abut against each other.

[0013] Preferably, the cavity is located on one side of the first abutting inclined surface and the second abutting inclined surface, and a first curved surface is formed on the inner liner corresponding to the position of the cavity; A second curved surface is formed on the lid corresponding to the position of the cavity, and the first curved surface and the second curved surface enclose the cavity.

[0014] Preferably, the radius of curvature of the first surface is greater than the radius of curvature of the second surface.

[0015] Preferably, a support portion is provided around the first docking portion, and a support fitting portion is provided on the pot lid at a position corresponding to the support portion, wherein the support portion supports the support fitting portion.

[0016] Preferably, the support portion is provided with a flow groove, the two ends of which connect the cavity and the outside.

[0017] Preferably, the pot lid is provided with an annular groove that mates with the second mating part, and a first abutting surface is provided at the bottom of the annular groove; The inner liner is provided with a second abutting surface at the position corresponding to the first abutting surface, and the first abutting surface abuts against the second abutting surface. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a rice cooker with extended protection according to an embodiment of the present utility model. Figure 2 This is a cross-sectional structural diagram of a rice cooker with extended protection according to an embodiment of the present utility model; Figure 3 for Figure 2 Enlarged structural diagram at point A Figure 1 ; Figure 4 for Figure 2 Enlarged structural diagram at point A Figure 2 ; Figure 5 for Figure 3 A magnified schematic diagram of the central part of the structure.

[0020] Explanation of reference numerals in the attached figures: 100. Pot body; 110. Inner liner; 111. First curved surface; 112. Second abutting plane; 120. First mating part; 121. First abutting inclined surface; 130. Support part; 131. Flow groove; 200. Pot lid; 210. Second mating part; 211. Second abutting inclined surface; 220. Second curved surface; 230. Support mating part; 240. Annular groove; 250. First abutting plane; 300. Cavity. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0026] like Figures 1 to 5 As shown in the figure, an electric rice cooker with extended protection provided by this utility model embodiment includes a pot body 100 and a pot lid 200. The pot body 100 is provided with an inner pot 110. The inner pot 110 is provided with a first docking part 120, which is located on the outer extension of the inner pot 110. The pot lid 200 is provided with a second docking part 210 corresponding to the position of the first docking part 120. The first docking part 120 and the second docking part 210 are docked so that the pot lid 200 is assembled on the inner pot 110. A cavity 300 is formed between the pot lid 200 and the inner pot 110. The cavity 300 is located on one side of the first docking part 120 and the second docking part 210.

[0027] In this embodiment, the first docking part 120 is located at the top edge of the inner pot 110, and the first docking part 120 is arranged in a ring on the top of the inner pot 110. The second docking part 210 is also arranged in a ring on the lid 200. When the first docking part 120 and the second docking part 210 are docked, a small cavity 300 is formed between the lid 200 and the inner pot 110. The cavity 300 is arranged in a ring and is used to collect steam or overflowing soup.

[0028] The design of the connecting part and the cavity 300 effectively prevents steam and liquid from overflowing from the gap between the lid 200 and the inner pot 110 during cooking, improving sealing and safety. The cavity 300, acting as a buffer zone, reduces pressure fluctuations, prevents sudden splashing when the lid is opened, and also reduces noise. Furthermore, this structure simplifies the assembly process and enhances the user experience.

[0029] Preferably, in this application, the first docking part 120 and the second docking part 210 are made of magnetic materials, which enhance the tightness of the docking through magnetic attraction and are suitable for high-pressure cooking mode.

[0030] Preferably, the inner wall of the cavity 300 is coated with a hydrophobic coating, which makes it easy for liquid to flow back to the inner liner 110, reducing residue and facilitating cleaning.

[0031] In this embodiment of the application, the first docking part 120 is configured as a first abutting inclined surface 121, the first abutting inclined surface 121 is arranged around the top edge of the inner liner 110, and a first abutting angle is formed between the first abutting inclined surface 121 and the vertical direction.

[0032] In the above structure, the first abutting slope 121 is arranged around the top edge of the inner liner 110, and the first abutting slope 121 extends outward from bottom to top. The first abutting slope 121 is formed by stamping or spinning process, which facilitates the formation of the abutting angle. Correspondingly, in the embodiment of this application, the first abutting angle is arranged in a ring at the top position of the inner liner 110.

[0033] In the above, the width of the first abutting inclined surface 121 is 3-8mm to ensure full contact with the pot lid 200.

[0034] In this embodiment of the application, the first contact angle range is controlled between 30 degrees and 60 degrees.

[0035] In the above structure, the first contact angle is controlled within the range of 30 degrees to 60 degrees, preferably 45 degrees. Precise angle control through mold design ensures consistent angles. Within this range, the angle balances sealing performance and structural strength: an angle that is too small may result in poor sealing, while an angle that is too large will affect the stability of the connection. Controlling a certain angle range maintains the stability of the fit between the lid 200 and the inner liner 110.

[0036] In this embodiment of the application, the second docking part 210 is configured as a second abutting slope 211, the second abutting slope 211 is arranged around the edge of the pot lid 200, and a second abutting angle is formed between the second abutting slope 211 and the vertical direction.

[0037] In the above structure, the second mating part 210 is configured as a second abutting slope 211, which is arranged around the edge of the pot lid 200 and formed by injection molding or stamping. The second abutting slope 211 forms a second abutting angle with the vertical direction, which matches the first abutting slope 121, so that when the pot lid 200 and the inner pot 110 are assembled together, the first abutting slope 121 is attached to the second abutting slope 211.

[0038] In this embodiment of the application, the second abutment angle range is controlled between 30 degrees and 60 degrees, and the first abutment slope 121 and the second abutment slope 211 abut against each other.

[0039] In the above structure, the second contact angle is controlled within the range of 30-60 degrees, preferably 45 degrees. Precise angle control through mold design ensures consistent angles, balancing sealing and structural strength within this range: too small an angle may result in poor sealing, while too large an angle affects docking stability. Controlling a certain angle range maintains the stability of the fit between the lid 200 and the inner liner 110.

[0040] In this embodiment, the cavity 300 is located on one side of the first abutting inclined surface 121 and the second abutting inclined surface 211. A first curved surface 111 is formed on the inner liner 110 corresponding to the position of the cavity 300. A second curved surface 220 is formed on the lid 200 corresponding to the position of the cavity 300. The first curved surface 111 and the second curved surface 220 enclose the cavity 300.

[0041] In the above structure, the cavity 300 is located outside the first abutting inclined surface 121 and the second abutting inclined surface 211. One side of the first docking portion 120 and the second docking portion 210 forms a receiving cavity within the inner liner 110, and the other side of the first docking portion 120 and the second docking portion 210 forms the cavity 300. A first curved surface 111 is formed on the inner liner 110 at a position corresponding to the cavity 300 through a stretching process, and a second curved surface 220 is formed on the lid 200 at a corresponding position. The first curved surface 111 and the second curved surface 220 enclose an annular cavity 300, the volume of which is 1-3 cm³. 3 .

[0042] In this embodiment of the application, the radius of curvature of the first surface 111 is greater than the radius of curvature of the second surface 220.

[0043] In the above structure, when the radius of curvature of the first surface 111 is twice the radius of curvature of the second surface 220, a gradually expanding cavity 300 can be formed. The gradually expanding cavity 300 can guide the slow diffusion of steam, promote condensation, and reduce splashing. When the radius of curvature of the first surface 111 is slightly larger than that of the second surface 220, the cavity 300 has a small inlet and a large interior. This structure can prevent liquid backflow, keep the inner liner 110 clean, and make the cavity 300 easy to clean and maintain. When the radius of curvature of the first surface 111 is much larger than that of the second surface 220, and the second surface 220 is steeper, the condensate of the steam can be guided to a specific collection point, which is convenient for centralized treatment and reduces the cleaning frequency.

[0044] In this embodiment of the application, a support portion 130 is provided around the first docking portion 120, and a support mating portion 230 is provided on the pot lid 200 at a position corresponding to the support portion 130, and the support portion 130 supports the support mating portion 230.

[0045] In the above structure, the support portion 130 surrounding the first docking portion 120 is an annular plane, integrally formed by casting. A corresponding support fitting portion 230, also an annular plane, is provided on the lid 200. When the lid is closed, the support portion 130 supports the support fitting portion 230, and together with the first docking portion 120 and the second docking portion 210, limits the position of the lid 200. The support structure primarily bears the main weight of the lid 200, reducing the load on the first docking portion 120 and the second docking portion 210, and preventing deformation after long-term use. The support portion 130 and the support docking portion improve the stability of the lid's closure and prevent misalignment during vibration or movement.

[0046] In this embodiment of the application, the support portion 130 is provided with a flow groove 131, and the two ends of the flow groove 131 are connected to the cavity 300 and the outside.

[0047] In the above structure, a flow channel 131 is provided on the support part 130. The flow channel 131 is a long strip structure with a width of 1-3 mm and a depth of 1-2 mm. Its structure is formed by the cooperation of the inner liner 110 and the lid 200. The two ends of the flow channel 131 are connected to the cavity 300 and the external environment, respectively. The flow channel 131 allows the steam or liquid accumulated in the cavity 300 to be slowly released to the outside, preventing the lid from bursting due to excessive pressure. At the same time, it avoids the cavity 300 from becoming blocked and maintains the long-term anti-overflow function.

[0048] In this embodiment of the application, the pot lid 200 is provided with an annular groove 240 that cooperates with the second docking part 210, and a first abutting plane 250 is provided at the bottom of the annular groove 240; the inner pot 110 is provided with a second abutting plane 112 corresponding to the position of the first abutting plane 250, and the first abutting plane 250 abuts against the second abutting plane 112.

[0049] In the above structure, the first and second abutting planes 112 are flat surfaces, and the planes are in close contact. The flat surfaces enable close contact. One side of the annular groove 240 is the second abutting slope 211 on the second mating part 210.

[0050] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A rice cooker with extended protection, characterized in that, include: The pot body (100) is provided with an inner liner (110), and a first docking part (120) is provided on the inner liner (110), the first docking part (120) being provided on the outer extension of the inner liner (110); A pot lid (200) is provided with a second docking part (210) at a position corresponding to the first docking part (120). The first docking part (120) and the second docking part (210) are docked so that the pot lid (200) is assembled on the inner pot (110). A cavity (300) is formed between the pot lid (200) and the inner pot (110). The cavity (300) is located on one side of the first docking part (120) and the second docking part (210).

2. The rice cooker with extended protection according to claim 1, characterized in that, The first docking part (120) is configured as a first abutting slope (121), which is arranged around the top edge of the inner liner (110). The first abutting slope (121) forms a first abutting angle with the vertical direction.

3. A rice cooker with extended protection according to claim 2, characterized in that, The first contact angle is controlled within the range of 30 degrees to 60 degrees.

4. A rice cooker with extended protection according to claim 2, characterized in that, The second docking part (210) is configured as a second abutting slope (211), which is arranged around the edge of the pot lid (200), and a second abutting angle is formed between the second abutting slope (211) and the vertical direction.

5. A rice cooker with extended protection according to claim 4, characterized in that, The second contact angle is controlled within the range of 30 degrees to 60 degrees, and the first contact slope (121) and the second contact slope (211) abut against each other.

6. A rice cooker with extended protection according to claim 4, characterized in that, The cavity (300) is located on one side of the first abutting inclined surface (121) and the second abutting inclined surface (211), and the inner liner (110) has a first curved surface (111) formed on the position corresponding to the cavity (300). A second curved surface (220) is formed on the lid (200) corresponding to the position of the cavity (300), and the first curved surface (111) and the second curved surface (220) enclose the cavity (300).

7. A rice cooker with extended protection according to claim 6, characterized in that, The radius of curvature of the first surface (111) is greater than the radius of curvature of the second surface (220).

8. A rice cooker with extended protection according to claim 6, characterized in that, A support portion (130) is provided around the first docking portion (120), and a support mating portion (230) is provided on the pot lid (200) at a position corresponding to the support portion (130), and the support portion (130) supports the support mating portion (230).

9. A rice cooker with extended protection according to claim 8, characterized in that, The support (130) is provided with a flow groove (131), and the two ends of the flow groove (131) are connected to the cavity (300) and the outside.

10. A rice cooker with extended protection according to claim 1, characterized in that, The pot lid (200) is provided with an annular groove (240) that mates with the second docking part (210), and a first abutting surface (250) is provided at the bottom of the annular groove (240). The inner liner (110) is provided with a second abutting surface (112) at the position corresponding to the first abutting surface (250), and the first abutting surface (250) abuts against the second abutting surface (112).

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