Cooking appliance and its lid

By designing a removable anti-spill cover and bent and detoured air intake channel on the electric pressure cooker, the problem of food liquid overflow is solved, achieving the effect of rapid exhaust and convenient cleaning.

CN113854820BActive Publication Date: 2025-07-22ZHEJIANG SHAOXING SUPOR DOMESTIC ELECTRICAL APPLIANCE CO LTD
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202010618818.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-06-30
Publication Date
2025-07-22
Estimated Expiration
2040-06-30

AI Technical Summary

Technical Problem

The existing electric pressure cooker is prone to overflow during the exhaust stage, and the existing anti-spill solution is complex in structure and difficult to clean, and has high cost.

Method used

A removable anti-spill cover is designed with a curved and circumferential air intake passage, combined with an inclined bottom wall and sealing ring to ensure that food liquid does not overflow easily and is easy to clean with a removable design.

Benefits of technology

It achieves rapid exhaust and cover opening effects, while avoiding food liquid spills, simplifying the cleaning process and reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN113854820B_ABST
    Figure CN113854820B_ABST
Patent Text Reader

Abstract

The present application provides a cooking appliance and its pot lid. The pot lid includes an inner pot lid, and an exhaust pipe and a pressure limiting valve are installed on the inner pot lid. The pot lid further includes an anti-overflow cover detachably disposed at the bottom side of the inner pot lid. The anti-overflow cover is provided with a bottom wall and convex ribs protruding upward from the bottom wall. The convex ribs enclose a curved and circuitous intake passage. The intake passage includes opposite first and second ends, wherein an air inlet is provided at the first end, and the second end communicates with the exhaust pipe. The anti-overflow cover of the cooking appliance and its pot lid in the present application is detachably arranged, which is convenient for cleaning; and a curved and circuitous intake passage is adopted to avoid the overflow of food liquid.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to a cooking appliance and a lid thereof. Background Art

[0002] An electric pressure cooker is a common kitchen cooking appliance. At present, during the exhaust stage of commercially available electric pressure cookers, a large amount of slurry is mixed in the gas. In order to avoid slurry overflow, currently common anti-overflow solutions, such as turbine blade bubble breaking, blowing bubble breaking, etc., have complex structures, are not easy to clean, and have high costs.

[0003] Therefore, it is necessary to improve the existing cooking appliance and its lid. Summary of the Invention

[0004] The present application provides a cooking appliance and a lid thereof, which have an anti-overflow lid that is easy to clean and can prevent overflow.

[0005] Specifically, the present application is implemented through the following technical solutions: A lid of a cooking appliance, the lid includes an inner lid, an exhaust pipe and a pressure limiting valve are installed on the inner lid, the lid further includes an anti-overflow lid, the anti-overflow lid is detachably arranged at the bottom side of the inner lid, the anti-overflow lid is provided with a bottom wall and a rib protruding upward from the bottom wall, the rib encloses a bent and circuitous intake passage, the intake passage includes opposite first and second ends, wherein an air inlet is provided at the first end, and the second end is communicated with the exhaust pipe. The anti-overflow lid of the lid of the cooking appliance in the present application is detachably arranged, which is convenient for cleaning; and a bent and circuitous intake passage is adopted to avoid the overflow of food liquid.

[0006] According to an embodiment of the present application, the bottom wall is inclined, the first end is located at a lower position of the bottom wall, the second end is located at a higher position of the bottom wall, and the inclination angle of the bottom wall is a, 1° ≤ a ≤ 15°. Designed in this way, the food and liquid remaining in the intake passage flow back into the cooking cavity under the influence of gravity, so that it is not easy to overflow during the next exhaust. Repeating this process can extend the single opening duration of the pressure limiting valve and achieve the effects of rapid exhaust and opening of the lid. a ≥ 1° to ensure that the slope is not too gentle, and a ≤ 15° to avoid the slope being too steep and blocking the gas, affecting the intake air volume.

[0007] According to an embodiment of the present application, the anti-overflow lid further includes a side peripheral wall extending upward from the periphery of the bottom wall, and the air inlet is arranged on the side peripheral wall. The air inlet is arranged on the side peripheral wall instead of the bottom wall, so that food is not easy to enter the intake passage and block the air inlet.

[0008] According to an embodiment of the present application, the lid is further provided with a sealing ring located between the inner lid and the anti-overflow lid, and the sealing ring seals the top of the intake passage. The sealing performance of the intake passage is ensured by the sealing ring.

[0009] According to an embodiment of the present application, the shape of the sealing ring is consistent with the contour line of the exhaust passage, and a positioning groove for positioning the sealing ring is provided at the top of the rib. The sealing ring has a simple structure and is convenient to assemble.

[0010] According to an embodiment of the present application, the exhaust passage includes a Z-shaped connecting portion between the first end and the second end. The connecting portion can lengthen the length of the intake passage to reduce the exhaust speed and prevent the liquid in the cooking cavity from overflowing.

[0011] According to an embodiment of the present application, the intake passage forms a cavity at the second end, the bottom of the exhaust pipe is located in the cavity, and the diameter of the cavity is larger than the width of other parts of the intake passage. The cavity can further buffer the gas, reduce the discharge speed of the gas, and prevent the liquid in the cooking cavity from overflowing.

[0012] According to an embodiment of the present application, the anti-overflow cover is provided with a plurality of mounting portions, and a plurality of screws pass through the mounting portions and are fixed to the inner pot lid. The anti-overflow cover can be detachably fixed to the bottom side of the inner pot lid 1.

[0013] According to an embodiment of the present application, the inclination angle a of the bottom wall is 5°, the anti-overflow cover further includes a side peripheral wall extending upward from the periphery of the bottom wall, the rib is connected to the side peripheral wall and is coplanar with the top end surface of the side peripheral wall, and the pot lid is further provided with a sealing ring between the inner pot lid and the top of the rib. The coplanar setting of the rib and the top end surface of the side peripheral wall can ensure that the sealing ring is squeezed and fixed.

[0014] The present application also provides the following technical solution: a cooking appliance, including a pot body and the aforementioned pot lid, and the pot lid covers the pot body. The anti-overflow cover of the cooking appliance of the present application is detachably arranged, which is convenient for cleaning; and a curved and circuitous intake passage is adopted to prevent food liquid from overflowing.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Description of the Drawings

[0016] Figure 1 It is a three-dimensional combined view of a cooking appliance according to an embodiment of the present application.

[0017] Figure 2 It is Figure 1 The sectional view of the cooking appliance in

[0018] Figure 3 It is Figure 1 The partial three-dimensional combined view of the pot lid of the cooking appliance in , only showing the inner pot lid of the pot lid and the related structures assembled to the inner pot lid.

[0019] Figure 4 Similar to Figure 3 and taken from different angles.

[0020] Figure 5 is Figure 3 the three-dimensional exploded view of the inner lid of

[0021] Figure 6 is Figure 3 the sectional view of the inner lid of

[0022] Figure 7 is Figure 6 the top view of the anti-overflow lid of the inner lid of

[0023] Explanation of reference numerals:

[0024] Inner lid 1, cooking cavity 10, exhaust pipe 11, pressure limiting valve 12, pressure limiting valve seat 13, anti-blocking cover 14, seal 15, face cover 2, lining cover 3, anti-overflow lid 4, bottom wall 41, side peripheral wall 42, rib 43, air inlet channel 44, first end 441, second end 442, connecting portion 443, cavity 444, air inlet 45, positioning groove 46, mounting portion 47, through hole 48, sealing ring 5. Detailed implementation manners

[0025] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. On the contrary, they are merely examples of devices, systems, devices, and methods consistent with some aspects of the present application as detailed in the appended claims.

[0026] Referring to Figure 1 and Figure 2 as shown, the cooking appliance of the present application includes a pot body (not shown) and a lid covering the pot body. Similar to the conventional lid structure, the lid includes a stainless-steel inner lid 1, a face cover 2, and a lining cover 3 located between the inner lid 1 and the face cover 2. A cooking cavity 10 is formed between the inner lid 1 and the inner pot (not numbered) of the pot body. The improvement of the present application lies in that: the lid is further provided with an anti-overflow lid 4 on the bottom side of its inner lid 1 for preventing the food liquid in the cooking cavity 10 from overflowing.

[0027] Referring to Figure 3 and Figure 4As shown, an exhaust pipe 11, a pressure limiting valve 12, a pressure limiting valve seat 13, an anti-blocking cover 14 and a seal 15 are installed on the inner pot lid 1. The pressure limiting valve seat 13 is fixed on the wall surface of the inner pot lid 1. The exhaust pipe 11 penetrates downward through the pressure limiting valve seat 13 and the inner pot lid 1 and exposes its bottom on the bottom side of the inner pot lid 1. The anti-blocking cover 14 is fixed to the end of the exhaust pipe 11 from the bottom side of the inner pot lid 1. The seal 15 is arranged between the pressure limiting valve seat 13 and the inner pot lid 1. The pressure limiting valve 12 is placed in the pressure limiting valve seat 13, covers the exhaust pipe 11 and blocks the exhaust hole (not shown) at the top of the exhaust pipe 11. During use, the pressure limiting valve 12 is intermittently moved away by the cooking program to open the exhaust hole (not shown) at the top of the exhaust pipe 11, so that the exhaust pipe 11 exhausts to the outside. The anti-overflow cover 4 is detachably arranged on the bottom side of the inner pot lid 1, Figure 3 and Figure 4 only the inner pot lid 1 and these structures assembled to the inner pot lid 1 are shown, and other structures irrelevant to the improvement of this application are omitted. The anti-overflow cover 4 is provided with a bottom wall 41 and a side peripheral wall 42 extending upward from the periphery of the bottom wall 41.

[0028] Refer to Figure 5 As shown, the anti-overflow cover 4 further includes a rib 43 protruding upward from the bottom wall 41. The rib 43 is continuously arranged and encloses a curved and circuitous intake channel 44. The inner pot lid 1 seals the top of the intake channel 44 from the top side. The intake channel 44 includes opposite first end 441 and second end 442. An air inlet 45 is provided at the first end 441, and the second end 442 communicates with the exhaust pipe 11. When the pressure limiting valve 12 opens the exhaust hole (not shown) at the top of the exhaust pipe 11, the steam in the cooking cavity 10 enters the intake channel 44 from the air inlet 45, and then enters the exhaust pipe 11 along the intake channel 44 and is discharged out of the cooking appliance. The intake channel 44 of the anti-overflow cover 4 is arranged in a curved and circuitous manner, which can lengthen the length of the intake path, slow down the exhaust speed and avoid the overflow of food liquid; and the anti-overflow cover 4 is detachably arranged on the bottom side of the inner pot lid 1, and can be conveniently disassembled and cleaned after cooking.

[0029] Combined with Figure 6 As shown, Figure 6 For Figure 3The sectional view shows that the bottom wall 41 of the inner pot lid 1 is inclined. Specifically, the first end 441 is located at the lower position of the bottom wall 41, and the second end 442 is located at the higher position of the bottom wall 41. The inclination angle of the bottom wall 41 is a, where 1° ≤ a ≤ 15°. a ≥ 1° ensures that the slope is not too gentle, and a ≤ 15° prevents the slope from being too steep and blocking the gas, affecting the intake air volume. Preferably, the value of a is 5°. During exhaust, the steam enters the exhaust pipe 11 upward, and the food residues need to overcome gravity and move along the intake passage 44. When the pressure limiting valve 12 closes the exhaust hole (not shown) at the top of the exhaust pipe 11, the food and liquid remaining in the intake passage 44 flow back into the cooking cavity 10 under the influence of gravity, making it less likely to overflow during the next exhaust. Repeating this process can extend the single opening duration of the pressure limiting valve 12 and achieve the effect of rapid exhaust and lid opening.

[0030] The air inlet 45 is provided on the side peripheral wall 42 and can be arranged close to the bottom wall 41. Since the food is driven upward by the steam and sprayed, setting the air inlet 45 on the side peripheral wall 42 instead of the bottom wall 41 can prevent the food from easily entering the intake passage 44 and blocking the air inlet 45.

[0031] Reference Figure 5 As shown, the pot lid further includes a sealing ring 5, which can be made of rubber or silica gel. The sealing ring 5 is arranged between the inner pot lid 1 and the anti-overflow lid 4. Specifically, the sealing ring 5 is clamped between the top of the rib 43 and the inner pot lid 1 to seal the top of the intake passage 44 and ensure the airtightness of the intake passage 44.

[0032] In this embodiment, the shape of the sealing ring 5 is consistent with the contour line of the intake passage 44, which has a simple structure and comprehensively seals the edge of the intake passage 44. The top of the rib 43 is provided with a positioning groove 46. During assembly, the sealing ring 5 is first placed in the positioning groove 46, and then the anti-overflow lid 4 is fixed to the bottom side of the inner pot lid 1, which is convenient for assembly. In this embodiment, the rib 43 is connected to the side peripheral wall 42 near its first end 441 and second end 442, which can extend the length of the intake passage 44. The top end surface of the rib 43 is coplanar with the side peripheral wall 42 to ensure that the sealing ring 5 is compressed between the rib 43 and the inner pot lid 1.

[0033] Combined with Figure 7 As shown, the intake passage 44 includes a Z-shaped connecting portion 443 between the first end 441 and the second end 442. As a simple replacement, this connecting portion 443 can also be a circuitous structure with multiple bending points such as an S shape, an M shape, or a continuous wavy shape to lengthen the length of the intake passage 44, reduce the exhaust speed, and prevent the liquid in the cooking cavity 10 from overflowing.

[0034] The intake passage 44 forms a cavity 444 at the second end 442. The bottom of the exhaust pipe 11 is located within the cavity 444. The cavity 444 is generally circular and has a diameter greater than the width of other parts of the intake passage 44. This cavity 444 can further buffer the gas, reduce the discharge speed of the gas, and prevent the liquid in the cooking chamber 10 from overflowing.

[0035] A plurality of mounting portions 47 are provided on the outer periphery of the side wall 42 of the anti-overflow cover 4. Each mounting portion 47 is provided with a through hole 48. The screw passes through the through hole 48 of the mounting portion 47 and is fixed to the inner pot lid 1, thereby detachably fixing the anti-overflow cover 4 to the bottom side of the inner pot lid 1. It can be understood that the anti-overflow cover 4 can also be fixed by other common detachable means, such as snap fixation.

[0036] The pot lid of the cooking appliance of the present application has a detachable and easy-to-clean anti-overflow cover 4. The intake passage 44 of the anti-overflow cover 4 is arranged circuitously to prevent food liquid from overflowing.

[0037] The terms used in the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms of "a", "an", and "the" used in the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0038] Spatial relative position terms such as "upper", "lower", "left", "right", "front", "rear", "thickness", "radial", "axial", etc. used herein are for the purpose of facilitating description of the relationship of one feature relative to another as shown in the drawings and are not limited to a position or a spatial orientation. It can be understood that depending on the different placement positions of the product, the spatial relative position terms can be intended to include different orientations other than those shown in the figures and should not be construed as a limitation of the claims. In addition, the descriptive term "horizontal" used herein is not exactly equivalent to being perpendicular to the direction of gravity and allows for a certain angle of inclination.

[0039] Words such as "comprising" or "including" and the like mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects.

[0040] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the surface of the other element or at a distance from the surface of the other element. Terms such as "mounted", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined.

[0041] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0042] It should be understood that the "first", "second" and similar terms used in the description and claims of this application do not denote any order, quantity or importance, but are only used to distinguish different components. Expressions such as "a plurality of" or "multiple layers" represent a quantity of two or more.

[0043] The cooking appliance of this application is only the preferred embodiment of this application and is not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of protection of this application.

Claims

1. A lid of a cooking appliance, the lid comprising an inner lid (1), an exhaust pipe (11) and a pressure limiting valve (12) are installed on the inner lid (1), and it is characterized in that: The pot lid further includes an anti-overflow cover (4). The anti-overflow cover (4) is detachably arranged on the bottom side of the inner pot lid (1). The anti-overflow cover (4) is provided with a bottom wall (41) and ribs (43) protruding upward from the bottom wall (41). The ribs (43) enclose a curved and circuitous intake passage (44). The top of the intake passage (44) is sealed by the inner pot lid (1) from the top side. The intake passage (44) includes opposite first end (441) and second end (442). An air inlet (45) is provided at the first end (441), and the second end (442) is communicated with the exhaust pipe (11). The anti-overflow cover (4) further includes a side peripheral wall (42) extending upward from the periphery of the bottom wall (41). The air inlet (45) is arranged on the side peripheral wall. A cavity (444) is formed at the second end (442) of the intake passage (44). The bottom of the exhaust pipe (11) is located in the cavity (444). The diameter of the cavity (444) is larger than the width of other parts of the intake passage (44).

2. The pot lid of the cooking appliance according to claim 1, characterized in that: The bottom wall (41) is inclined. The first end (441) is located at a lower position of the bottom wall (41), and the second end (442) is located at a higher position of the bottom wall (41). The inclination angle of the bottom wall (41) is a, and 1° ≤ a ≤ 15°.

3. The pot lid of the cooking appliance according to claim 1, characterized in that: The pot lid is further provided with a sealing ring (5) located between the inner pot lid (1) and the anti-overflow cover (4). The sealing ring (5) seals the top of the intake passage (44).

4. The lid of the cooking appliance according to claim 3, characterized in that: The shape of the sealing ring (5) is consistent with the contour line of the exhaust passage. A positioning groove (46) for positioning the sealing ring (5) is provided at the top of the rib (43).

5. The lid of the cooking appliance according to claim 1, characterized in that: The exhaust passage includes a Z-shaped connecting portion (443) between the first end (441) and the second end (442).

6. The pot lid of the cooking appliance according to claim 1, characterized in that: The anti-overflow cover (4) is provided with a plurality of mounting portions (47). A plurality of screws pass through the mounting portions (47) and are fixed to the inner pot lid (1).

7. The pot lid of the cooking appliance according to claim 2, wherein: The inclination angle a of the bottom wall (41) is 5°. The anti-overflow cover (4) further includes a side peripheral wall extending upward from the periphery of the bottom wall (41). The rib (43) is connected to the side peripheral wall and is coplanar with the top end surface of the side peripheral wall. The pot lid is further provided with a sealing ring (5) located between the inner pot lid and the top of the rib (43).

8. A cooking appliance, characterized in that: The cooking appliance includes a pot body and a pot lid of the cooking appliance according to any one of claims 1 to 7. The pot lid covers the pot body.

Citation Information

Patent Citations

  • Anti-overflow rice cooker with foam breaking function

    CN107569090A

  • Cooking utensil

    CN208491738U

  • Cooking utensil and pot cover thereof

    CN212394579U

  • Electric pot

    JP2012239491A