Cooking utensil

Abstract

The utility model provides a cooking utensil which comprises a pot body, a pot cover and a pot cover, the pot body comprises a heat preservation cover and an inner pot arranged in the heat preservation cover, and pot teeth are arranged on the heat preservation cover; the cooker cover assembly is arranged on the cooker body, the cooker cover assembly comprises a lock cover, cover teeth matched with the cooker teeth are arranged on the lock cover, and the lock cover is rotatably arranged and can lock or unlock the heat preservation cover; the exhaust structure comprises an exhaust pipe arranged on the lock cover and a pressure limiting valve arranged on the exhaust pipe; the thickness T1 of the heat preservation cover is larger than or equal to 1.8 mm and smaller than or equal to 3 mm, and the thickness T2 of the lock cover is larger than or equal to 1.5 mm and smaller than or equal to 2.5 mm. According to the technical scheme, the problem that in the related technology, the use safety risk of a user is large due to the fact that pressure is increased is solved.

Description

Technical Field

[0001] This utility model relates to the field of small household appliance technology, and more specifically, to a cooking utensil. Background Technology

[0002] Currently, the highest pressure of conventional pressure cooking appliances on the market is 112 kPa. To shorten cooking time and improve the taste, the maximum pressure of the cooking appliance can be further increased.

[0003] However, due to the limitations of the existing product structure and strength, further increasing the pressure would pose a significant safety risk to users. Utility Model Content

[0004] The main purpose of this utility model is to provide a cooking appliance to solve the problem that increasing pressure in related technologies poses a significant safety risk to users.

[0005] To achieve the above objectives, this utility model provides a cooking appliance, comprising: a pot body, including a heat-insulating cover and an inner pot disposed within the heat-insulating cover, the heat-insulating cover being provided with pot teeth; a pot lid assembly, disposed on the pot body, the pot lid assembly including a locking cover, the locking cover being provided with a cover tooth that engages with the pot teeth, the locking cover being rotatably disposed and capable of locking or unlocking the heat-insulating cover; and an exhaust structure, including an exhaust pipe disposed on the locking cover and a pressure limiting valve disposed on the exhaust pipe; wherein, the thickness T1 of the heat-insulating cover satisfies: 1.8mm≤T1≤3mm, and the thickness T2 of the locking cover satisfies: 1.5mm≤T2≤2.5mm.

[0006] By applying the technical solution of this utility model, in order to improve the structural strength of the cooking appliance, the thickness of the pressure-bearing structure inside the cooking appliance is adjusted. Specifically, the heat-insulating cover with pot teeth and the locking cover with lid teeth interlock to achieve pressure resistance during the cooking process. In the technical solution of this application, the thickness of both the heat-insulating cover and the locking cover is increased. The thickness T1 of the heat-insulating cover satisfies: 1.8mm ≤ T1 ≤ 3mm, and the thickness T2 of the locking cover satisfies: 1.5mm ≤ T2 ≤ 2.5mm. By increasing the thickness of the heat-insulating cover and the locking cover, the structural strength of the cooking appliance is improved, which can further increase the maximum cooking pressure. The technical solution of this application effectively solves the problem of the greater safety risks to users caused by increasing pressure in related technologies.

[0007] Furthermore, when the locking cover locks the insulation cover, the pot teeth and the cover teeth are stacked, and the overlap dimension D of the pot teeth and the cover teeth in the radial direction of the insulation cover satisfies: 4mm≤D≤5.2mm. The above overlap dimension can effectively ensure the fastening between the insulation cover and the locking cover, avoiding the safety risks caused by disengagement.

[0008] Furthermore, the insulation cover is made of Q235A stainless steel, and / or the locking cover is made of 304 stainless steel, 430 stainless steel, or 316 stainless steel. The materials used for the insulation cover balance structural strength and manufacturing cost. The locking cover comes into direct contact with the food, and its material ensures it will not react with the food during cooking, thus guaranteeing food safety.

[0009] Furthermore, the weight M of the pressure relief valve satisfies: 78g ≤ M ≤ 102g, and / or the included angle α of the exhaust pipe outlet satisfies: 89° ≤ α ≤ 108°. The weight of the pressure relief valve meets the required cooking pressure, and the included angle of the exhaust pipe outlet is matched to the weight of the pressure relief valve, ensuring that the pressure relief valve remains lightweight while meeting the required cooking pressure, thereby reducing manufacturing costs.

[0010] Furthermore, the inner pot is a double-layered inner pot, with the outer layer made of iron and the inner layer made of aluminum. This double-layered inner pot is relatively inexpensive and allows for easy creation of graduated lines on the inner layer, making it convenient for cooking rice or porridge.

[0011] Furthermore, the thickness T3 of the double-layered inner pot satisfies: 2mm ≤ T3 ≤ 2.8mm, wherein the thickness of the outer layer of the double-layered inner pot is greater than or equal to 1mm. This dimensional range balances structural strength and manufacturing cost.

[0012] Furthermore, the inner pot is a three-layer inner pot. The inner and outer layers of the three-layer inner pot are made of stainless steel, while the middle layer is made of aluminum. The inner layer of the three-layer inner pot is in direct contact with the food, and the material of the inner layer ensures that it will not react with the food during cooking, thus guaranteeing food safety and making it convenient for making soup.

[0013] Furthermore, the thickness T4 of the three-layer inner pot satisfies: 1.5mm ≤ T4 ≤ 3mm, wherein the sum of the thicknesses of the outer and inner layers of the three-layer inner pot is greater than or equal to 1mm. This dimensional range balances structural strength and manufacturing cost.

[0014] Furthermore, the insulation cover has a ring-shaped structure; and / or, the pot body also includes an outer shell, with the insulation cover connected inside the outer shell. The ring-shaped insulation cover can reduce manufacturing costs, while the outer shell can improve the aesthetics and facilitate the installation of other components inside the outer shell.

[0015] Furthermore, the pot lid assembly also includes a top cover, which is positioned above the locking cover and has an operating mechanism for rotating the locking cover. This top cover improves the aesthetic appearance and facilitates the installation of other components within it. The operating mechanism facilitates operation of the locking cover. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A perspective structural schematic diagram of an embodiment of a cooking utensil according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A schematic diagram of the exploded structure of a cooking utensil;

[0019] Figure 3 It shows Figure 1 An exploded structural diagram of a portion of the lid assembly of a cooking appliance.

[0020] Figure 4 It shows Figure 3 A magnified view of point A on the pot lid assembly;

[0021] Figure 5 It shows Figure 1 A three-dimensional structural diagram of the heat preservation cover for cooking utensils;

[0022] Figure 6 It shows Figure 1 A cross-sectional schematic diagram of a portion of the locking lid and heat preservation cover of a cooking appliance;

[0023] Figure 7 It shows Figure 1 A schematic diagram of the exploded exhaust system of a cooking appliance;

[0024] Figure 8 It shows Figure 1 A cross-sectional schematic diagram of the first embodiment of the inner pot of a cooking appliance;

[0025] Figure 9 It shows Figure 8 A magnified view of point B on the inner pot;

[0026] Figure 10 It shows Figure 1 A cross-sectional schematic diagram of a second embodiment of the inner pot of a cooking appliance;

[0027] Figure 11 It shows Figure 10 A magnified view of point C on the inner pot.

[0028] The above figures include the following reference numerals:

[0029] 10. Pot body; 11. Insulation cover; 111. Pot teeth; 12. Inner pot; 13. Outer shell;

[0030] 20. Pot lid assembly; 21. Locking lid; 211. Lid teeth; 22. Top cover; 23. Operating components; 24. Inner cover; 25. Sealing ring;

[0031] 30. Exhaust structure; 31. Exhaust pipe; 32. Pressure relief valve;

[0032] T1, thickness of the insulation cover; T2, thickness of the locking lid; D, overlap dimension of the pot teeth and lid teeth in the radial direction of the insulation cover; α, included angle of the exhaust pipe outlet; T3, thickness of the double-layer inner pot; T4, thickness of the triple-layer inner pot. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0036] like Figure 1 , Figure 2 and Figure 7As shown, the cooking appliance of this embodiment includes: a pot body 10, a lid assembly 20, and an exhaust structure 30. The pot body 10 includes a heat-insulating cover 11 and an inner pot 12 disposed within the heat-insulating cover 11. The heat-insulating cover 11 is provided with pot teeth 111. The lid assembly 20 is disposed on the pot body 10 and includes a locking cover 21. The locking cover 21 is provided with cover teeth 211 that cooperate with the pot teeth 111. The locking cover 21 is rotatably disposed and can lock or unlock the heat-insulating cover 11. The exhaust structure 30 includes an exhaust pipe 31 disposed on the locking cover 21 and a pressure limiting valve 32 disposed on the exhaust pipe 31. The thickness T1 of the heat-insulating cover 11 satisfies: 1.8mm ≤ T1 ≤ 3mm, and the thickness T2 of the locking cover 21 satisfies: 1.5mm ≤ T2 ≤ 2.5mm.

[0037] In this embodiment, to improve the structural strength of the cooking appliance, the thickness of the pressure-bearing structure within the appliance is adjusted. Specifically, the heat-insulating cover 11 with pot teeth 111 and the locking cover 21 with lid teeth 211 interlock to achieve pressure resistance during cooking. In this embodiment, the thickness of both the heat-insulating cover 11 and the locking cover 21 is increased. The thickness T1 of the heat-insulating cover 11 satisfies: 1.8mm ≤ T1 ≤ 3mm, and the thickness T2 of the locking cover 21 satisfies: 1.5mm ≤ T2 ≤ 2.5mm. By increasing the thickness of the heat-insulating cover and the locking cover, the structural strength of the cooking appliance is improved, thereby further increasing the maximum cooking pressure. This embodiment effectively solves the problem of significant safety risks to users caused by increased pressure in related technologies.

[0038] The thickness T1 of the aforementioned heat insulation cover 11 and the thickness T2 of the locking cover 21 not only improve structural strength and reduce safety risks to users, but also balance user experience and manufacturing costs. Theoretically, greater thickness results in better structural strength; however, excessive thickness significantly increases product weight, degrades user experience, and increases manufacturing costs. The technical solution in this embodiment ensures that the cooking appliance operates at a pressure of 140 kPa or higher.

[0039] In a preferred embodiment, the thickness T1 of the insulation cover 11 can be 1.8mm, 1.9mm, 2mm, 2.4mm, 2.7mm, or 3mm. The insulation cover 11 is a stamped part, and the thickness of the insulation cover 11 remains consistent at all locations.

[0040] The thickness T2 of the lock cover 21 can be 1.5mm, 1.6mm, 1.7mm, 2mm, 2.2mm, or 2.5mm. The lock cover 21 is a stamped part, and the thickness of the lock cover 21 is consistent at all locations. The lock cover 21 includes a top plate and side plates surrounding the edge of the top plate, and the cover teeth are located at the bottom of the side plates. The above structure can be integrally formed by stamping.

[0041] In this embodiment, the heat insulation cover 11 is made of Q235A material, which can balance structural strength and manufacturing cost.

[0042] The locking cover 21 is made of 304 stainless steel, 430 stainless steel, or 316 stainless steel. Since the locking cover will come into direct contact with the food, the material of the locking cover 21 ensures that it will not react with the food during cooking, thus guaranteeing food safety.

[0043] like Figures 3 to 6 As shown, when the locking cover 21 locks the insulation cover 11, the pot teeth 111 and the cover teeth 211 are stacked, and the overlap dimension D of the pot teeth 111 and the cover teeth 211 in the radial direction of the insulation cover 11 satisfies: 4mm ≤ D ≤ 5.2mm. This overlap dimension D effectively ensures the fastening between the insulation cover and the locking cover, avoiding the safety risk caused by disengagement. It should be noted that the overlap dimension D refers to the horizontal distance between the outer edge of the pot teeth 111 and the inner edge of the cover teeth 211 in the radial direction of the insulation cover 11. The overlap dimension D can be 4mm, 4.3mm, 4.6mm, 4.9mm, or 5.2mm. A larger overlap dimension D results in a better fastening effect, but it also presents manufacturing difficulties and higher costs. The aforementioned overlap dimension D reduces manufacturing difficulty and costs while maintaining a good fastening effect.

[0044] like Figure 7 As shown, in this embodiment, the weight M of the pressure relief valve 32 satisfies: 78g ≤ M ≤ 102g. The weight of the pressure relief valve 32 is sufficient to meet the required cooking pressure. If the pressure relief valve 32 is too light, it may easily tip over during venting. The weight M of the pressure relief valve 32 can be 78g, 84g, 90g, 96g, or 102g.

[0045] The included angle α of the exhaust pipe 31's outlet satisfies: 89° ≤ α ≤ 108°. It should be noted that the included angle of the exhaust pipe 31's outlet refers to the angle between the sidewall of the exhaust pipe 31's outlet and a predetermined vertical plane, which passes through the axis of the exhaust pipe 31. The included angle α of the exhaust pipe 31's outlet can be 89°, 92°, 95°, 98.5°, 102°, or 108°.

[0046] The outlet angle of the exhaust pipe 31 is designed to match the weight of the pressure relief valve 32, ensuring that the pressure relief valve 32 remains lightweight while meeting the required cooking pressure, thereby reducing manufacturing costs. Under the same pressure requirements, a larger outlet angle of the exhaust pipe 31 allows for a lighter pressure relief valve 32. However, a larger outlet angle also increases manufacturing difficulty. Therefore, the design must comprehensively consider both the outlet angle of the exhaust pipe 31 and the weight of the pressure relief valve 32 to balance cost and ease of manufacturing.

[0047] The inner pot design can be implemented in two ways: a double-layered inner pot or a triple-layered inner pot. It can also be a single-layered inner pot, or have more than three layers. Generally, a non-stick coating is provided on the inner surface of the aforementioned double-layered or triple-layered inner pot. It should be noted that the aforementioned double-layered or triple-layered inner pot specifically refers to an inner pot base material that is double-layered or triple-layered. Based on the double-layered or triple-layered design, a coating, plating, or cladding layer can also be provided on the inner or outer surface of the inner pot base material. The number of layers in the inner pot does not include the aforementioned functional layers such as coatings, plating, or cladding layers. In this embodiment, the inner pot 12 itself does not need to bear pressure, so its thickness does not need to be increased.

[0048] When the inner pot 12 is a double-layered inner pot, the outer layer of the double-layered inner pot is made of iron, and the inner layer is made of aluminum. The aforementioned double-layered inner pot is relatively inexpensive and allows for easy creation of graduated lines on the inner layer, making it convenient for cooking rice or porridge. The inner layer of the double-layered inner pot can be made of AL1050 aluminum.

[0049] like Figure 8 and Figure 9 As shown, the thickness T3 of the double-layered inner pot satisfies: 2mm ≤ T3 ≤ 2.8mm, wherein the thickness of the outer layer of the double-layered inner pot is greater than or equal to 1mm. This dimensional range balances structural strength and manufacturing cost.

[0050] The thickness T3 of the double-layer inner pot can be 2mm, 2.4mm or 2.8mm.

[0051] When the inner pot 12 is a three-layer inner pot, the inner and outer layers are both made of stainless steel, while the middle layer is made of aluminum. The inner layer of this three-layer inner pot is in direct contact with the food, and its material ensures that it will not react with the food during cooking, guaranteeing food safety and making it suitable for soup making. The inner layer of the three-layer inner pot can be made of 430 stainless steel, and the outer layer can be made of either 430 or 316 stainless steel. The middle layer can be made of AL3003.

[0052] like Figure 10 and Figure 11 As shown, the thickness T4 of the three-layer inner pot satisfies: 1.5mm ≤ T4 ≤ 3mm, wherein the sum of the thicknesses of the outer and inner layers of the three-layer inner pot is greater than or equal to 1mm. This dimensional range balances structural strength and manufacturing cost.

[0053] The thickness T4 of the three-layer inner pot can be 1.5mm, 2mm, 2.2mm, 2.5mm or 3mm.

[0054] like Figure 5As shown, the insulation cover 11 has a ring-shaped structure. The ring-shaped structure reduces manufacturing costs. Of course, as a feasible implementation, the insulation cover 11 can also be configured with a bottom wall and side walls. The height of the insulation cover 11 can be set according to actual needs and is not limited here.

[0055] like Figure 1 and Figure 2 As shown, the pot body 10 also includes an outer shell 13, and a heat insulation cover 11 is connected inside the outer shell. The outer shell improves the aesthetic appearance and facilitates the installation of other components inside the outer shell.

[0056] like Figure 1 and Figure 2 As shown, the pot lid assembly also includes a top cover 22, which is positioned above the locking cover 21. The top cover 22 has an operating component 23 that drives the locking cover 21 to rotate. The top cover 22 improves the aesthetic appearance and facilitates the installation of other components within it. The operating component 23 facilitates operation of the locking cover 21. The operating component 23 is a handle structure, but in other embodiments, it can also be a rotary handle.

[0057] In this embodiment, an inner cover 24 is also provided below the locking cover 21, and the inner cover 24 is detachably provided below the locking cover 21. A sealing ring 25 is also provided on the locking cover 21, which can form a sealing fit with the inner pot 12.

[0058] The cooking appliance in this application is an electric pressure cooker.

[0059] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0060] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0061] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cooking utensil, characterized in that, include: The pot body (10) includes a heat insulation cover (11) and an inner pot (12) disposed inside the heat insulation cover (11), and the heat insulation cover (11) is provided with pot teeth (111); A lid assembly (20) is disposed on the pot body (10). The lid assembly (20) includes a locking cover (21). The locking cover (21) is provided with a cover tooth (211) that engages with the pot tooth (111). The locking cover (21) is rotatably disposed and can lock or unlock the heat preservation cover (11). The exhaust structure (30) includes an exhaust pipe (31) disposed on the lock cover (21) and a pressure relief valve (32) disposed on the exhaust pipe (31); The thickness T1 of the heat insulation cover (11) satisfies: 1.8mm≤T1≤3mm, and the thickness T2 of the lock cover (21) satisfies: 1.5mm≤T2≤2.5mm.

2. The cooking utensil according to claim 1, characterized in that, When the locking cover (21) locks the heat insulation cover (11), the pot teeth (111) and the cover teeth (211) are stacked, and the overlap dimension D of the pot teeth (111) and the cover teeth (211) in the radial direction of the heat insulation cover (11) satisfies: 4mm≤D≤5.2mm.

3. The cooking utensil according to claim 1, characterized in that, The insulation cover (11) is made of Q235A, and / or the locking cover (21) is made of 304 stainless steel, 430 stainless steel, or 316 stainless steel.

4. The cooking utensil according to claim 1, characterized in that, The weight M of the pressure relief valve (32) satisfies: 78g≤M≤102g, and / or the included angle α of the exhaust port of the exhaust pipe (31) satisfies: 89°≤α≤108°.

5. The cooking utensil according to any one of claims 1 to 4, characterized in that, The inner pot (12) is a double-layered inner pot. The outer layer of the double-layered inner pot is made of iron, and the inner layer of the double-layered inner pot is made of aluminum.

6. The cooking utensil according to claim 5, characterized in that, The thickness T3 of the double-layer inner pot satisfies: 2mm≤T3≤2.8mm, wherein the thickness of the outer layer of the double-layer inner pot is greater than or equal to 1mm.

7. The cooking utensil according to any one of claims 1 to 4, characterized in that, The inner pot (12) is a three-layer inner pot. The inner and outer layers of the three-layer inner pot are made of stainless steel, and the middle layer of the three-layer inner pot is made of aluminum.

8. The cooking utensil according to claim 7, characterized in that, The thickness T4 of the three-layer inner pot satisfies: 1.5mm≤T4≤3mm, wherein the sum of the thicknesses of the outer and inner layers of the three-layer inner pot is greater than or equal to 1mm.

9. The cooking utensil according to any one of claims 1 to 4, characterized in that, The heat insulation cover (11) has a ring structure; and / or, the pot body (10) further includes an outer shell (13), and the heat insulation cover (11) is connected inside the outer shell (13).

10. The cooking utensil according to any one of claims 1 to 4, characterized in that, The pot lid assembly also includes a face cover (22), which is disposed above the locking cover (21), and the face cover (22) is provided with an operating element (23) for driving the locking cover (21) to rotate.

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