CN212698557U - Cooking utensil - Google Patents

Cooking utensil Download PDF

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Publication number
CN212698557U
CN212698557U CN202021245497.0U CN202021245497U CN212698557U CN 212698557 U CN212698557 U CN 212698557U CN 202021245497 U CN202021245497 U CN 202021245497U CN 212698557 U CN212698557 U CN 212698557U
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China
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layer
stick
pot
pot body
height
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CN202021245497.0U
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Inventor
袁华庭
瞿义生
张明
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Wuhan Supor Cookware Co Ltd
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Wuhan Supor Cookware Co Ltd
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/02Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A47J36/025Vessels with non-stick features, e.g. coatings
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels

Abstract

The application provides a cooking appliance, which comprises a pot body and a non-stick layer, wherein the non-stick layer comprises at least a first layer and a second layer; the first layer is connected with the pot body, and the second layer is connected with one side of the first layer, which is far away from the pot body; the first layer and the second layer are inorganic porous material layers or self-lubricating material layers; the first layer has a larger particle size than the second layer. Utilize this application, can improve cooking utensil's durability, extension cooking utensil's life, guarantee that the user's is healthy. In addition, the non-stick layer is combined with the pan body more firmly, and the non-stick effect is better.

Description

Cooking utensil
Technical Field
The application relates to the technical field of kitchen tools, in particular to a cooking appliance.
Background
The existing non-stick vessel has the non-stick effect by mainly spraying non-stick coating (such as fluorine-containing coating or ceramic coating) on a vessel substrate, and avoids the phenomenon of sticking a pot in the process of cooking food. However, the non-stick coating used in the prior art, whether being a fluorine-containing coating or a ceramic coating, has the defects of poor temperature resistance and easy scratching and breakage, so that a non-stick utensil is easily abraded and scratched by food materials or a slice in the using process, the non-stick property is reduced until the non-stick utensil is failed, and the service life of the non-stick utensil is influenced. Therefore, in order to reduce abrasion and scratch, the existing non-stick utensils need to be matched with a specific silica gel shovel or a specific wood shovel, so that the existing non-stick utensils are very not in line with the cooking habit that Chinese people like to use a shovel, and the experience of consumers is poor.
SUMMERY OF THE UTILITY MODEL
The application provides a cooking utensil to avoid using non-stick coating, improve cooking utensil's durability, extension cooking utensil's life ensures that the user's is healthy.
The application provides a cooking appliance, includes:
a pan body;
a non-stick layer comprising at least a first layer and a second layer; the first layer is connected with the pot body, and the second layer is connected with one side of the first layer, which is far away from the pot body;
the first layer and the second layer are inorganic porous material layers or self-lubricating material layers;
the first layer has a larger particle size than the second layer.
In the cooking utensil provided by the application, the first layer and the second layer are inorganic porous material layers or self-lubricating material layers, the inorganic porous material layers have amorphous structures, atoms are arranged in a three-dimensional space to be short-range ordered and long-range disordered, and the surface energy is small; and the diameter of the hole is micron-level, so that a large amount of edible oil can be adsorbed in the actual use process, and a layer of oil film is always kept on the surface. The self-lubricating material has a layered crystal structure, and the interlayer slippage is good, just like grease; in addition, the self-lubricating material layer has a special layered structure, a plurality of gaps are formed among the layered structures, the size of the gaps is in a micron level, a large amount of edible oil can be adsorbed in the actual use process, a layer of oil film is always kept on the surface, direct contact between food and a pot body is avoided, the non-stick mechanism of the non-stick layer is met, and therefore the probability that the food sticks to the pot is reduced.
The inorganic porous material has non-stick performance due to the characteristics of low surface energy and porous oil absorption, and the self-lubricating material has non-stick performance due to the characteristics of self-lubrication and porous oil absorption formed by the lamellar crystal, so that the non-stick layer has certain non-stick performance. The inorganic porous material and the self-lubricating material have stable crystals and high melting points, so that the inorganic porous material and the self-lubricating material have better thermal stability and high temperature resistance, and have stable structures and are not easy to change substances in the cooking process, so that the inorganic porous material and the self-lubricating material are not easy to age. Inorganic porous material and self-lubricating material's hardness is big, mechanical strength is big, even when using the shovel to carry out food culinary art, also be difficult for appearing the fish tail to cooking utensil's durability can be effectively improved, cooking utensil's life has been prolonged. The non-stick layer is an inorganic porous material layer or a self-lubricating material layer which is not easy to fall off, so that the non-stick coating adopted in the prior art is replaced, and the inorganic porous material and the self-lubricating material are both natural materials, are healthy and non-toxic, and can ensure the health of a user.
In addition, the granularity of the first layer is larger than that of the second layer, the granularity of the first layer is larger, the preparation cost is lower, the impact force on the base material of the pot body is strong, and the first layer is firmly combined with the base material of the pot body. The first layer is more granular and therefore forms a rougher surface, enabling the second layer to be bonded more firmly thereto.
The second layer has smaller granularity, so the specific surface area is large, more edible oil can be adsorbed in the using process, a microscopic coarse structure can be more easily formed, and a better non-sticking effect can be obtained.
As a possible implementation manner, the granularity of the first layer is in the range of 300-500 meshes; and/or the particle size of the second layer is in the range of 500-2000 mesh.
In the scheme, the granularity of the first layer is larger, so that the bonding force between the first layer and the base material of the pot body and the bonding force between the first layer and the second layer are stronger. The second layer has smaller granularity, and improves the non-stick effect.
As a possible implementation manner, the granularity of the first layer is gradually reduced from the axis of the bottom of the pot body to the position close to the pot opening; and/or
The granularity of the second layer is gradually reduced from the axis of the bottom of the pot body to the position close to the pot opening.
The first layer close to the bottom of the pan has larger granularity, and can improve the strength of the bottom of the pan, thereby avoiding the damage of a turner and the like in the area near the bottom of the pan in the process of cooking.
The second layer of the pan bottom has larger granularity, and can improve the strength of the pan bottom, thereby avoiding the damage of a turner and the like in the area near the pan bottom in the process of cooking.
As a possible realization mode, the thickness of the non-stick layer from the bottom of the pot body to one third of the height of the wall part is larger than the thickness from one third of the height of the wall part of the pot body to the pot opening of the pot body.
Whether the electromagnetic oven or the open fire is used for heating, the part from the bottom of the pan body to one third of the height of the wall part is a main heated area, the temperature of the part is increased quickly, but the temperature of the pan bottom can be increased slowly by the thick non-stick layer of the area; the region from the bottom of the pot body to one third of the height of the wall part is far away from the heat source, and the temperature rise speed can be accelerated due to the thin region, so that the temperature rise speed of the two regions can be close to each other, the heat transfer on the inner surface of the pot is uniform, and the oil smoke problem caused by overhigh local temperature is avoided; and the problem of non-stick layer damage caused by long-term local high temperature is also avoided. Moreover, when food is fried on the pan bottom, the non-stick layer at the pan bottom is easily scratched and abraded by the shovel or the hard food, and the thicker non-stick layer can effectively reduce the scratch and abrasion caused by the shovel or the hard food, so that the service life of the cooking utensil is prolonged.
As a possible realization, the thickness of the non-stick layer at the height of the bottom to one third of the wall of the pan body ranges from 80 to 300 μm; and/or
The thickness range from one third of the height of the wall part of the pot body to the pot opening of the pot body is 30-180 mu m.
Within the thickness range, the non-stick layer can not fall off and expose the bottom due to abrasion in the long-term use process because of being too thin, the non-stick layer has lasting non-stick service life, the heat transfer on the surface of the pot can be ensured to be uniform, and the problems of loose structure, increased pores, reduced coating hardness or adhesive force and the like of the outer surface of the non-stick layer due to too thick non-stick layer can be avoided.
As a possible realization, the porosity of the non-stick layer at the height of the bottom to one third of the wall of the pan body is greater than or equal to the porosity at the height of one third of the wall of the pan body to the pan mouth of the pan body.
In the scheme, the non-stick layer at the position of one third of the height from the bottom to the wall of the pot body has larger porosity, which is beneficial to the absorption of edible oil, so that the surface of the pot body always keeps a layer of oil film, and when stir-frying is carried out in the area, food is not easy to stick to the pot, thereby further improving the non-stick effect of the non-stick layer.
As a possible realization, the porosity of the non-stick layer ranges from 0.5% to 15%.
In the scheme, stress concentration can be reduced and cracks of the coating can be avoided due to reasonable pores. If the porosity of the non-stick layer is greater than 15%, the hardness and wear resistance of the non-stick layer may be greatly reduced, resulting in a decrease in the durability of the quasicrystalline coating, and if the porosity of the non-stick layer is less than 0.5%, it may be difficult to achieve technologically.
As a possible realization, the porosity of the non-stick layer at the height of one third of the wall from the bottom of the pan body ranges from 8% to 12%; and/or the porosity range from one third of the height of the wall part of the pot body to the pot opening of the pot body is 0.5-8%.
The bottom of the pot body is to the regional area that corresponds of one-third height department of wall portion, and in suitable within range, the relatively higher porosity can reduce the heat transfer area of non-stick layer, and heat transfer medium's thermal conductivity is lower, has consequently reduced the heat conduction efficiency in above-mentioned region, is favorable to the absorption of edible oil, can further improve the non-stick effect of non-stick layer for cooking utensil turns over the stir-fry region.
As a possible implementation manner, the first layer and the second layer are the same and are both inorganic porous material layers or self-lubricating material layers; or the first layer and the second layer are respectively an inorganic porous material layer or a self-lubricating material layer.
As a possible implementation, the inorganic porous material layer is a diatomite layer, a bentonite layer or a zeolite layer;
the self-lubricating material layer is a graphite layer, a graphite fluoride layer or a molybdenum disulfide layer.
In the above scheme, when the inorganic porous material layer is a diatomite layer, a bentonite layer or a zeolite layer, the diatomite, the bentonite or the zeolite is a natural inorganic porous material, so that the raw materials are convenient to obtain, and the manufacturing cost is low. The self-lubricating material layer adopts a graphite layer, a graphite fluoride layer and a molybdenum disulfide layer, so that the raw materials are convenient to obtain, and the manufacturing cost is low.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a front sectional view of a cooking appliance provided in an embodiment of the present application;
fig. 2 is a partially enlarged view of fig. 1.
Reference numerals:
1-a pot body;
2-a non-stick layer;
21-a first layer;
22-second layer.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
Fig. 1 is a front sectional view of a cooking appliance according to an embodiment of the present application, and fig. 2 is a partially enlarged view of fig. 1.
As shown in fig. 1 and 2, the embodiment of the application provides a cooking utensil, which comprises a pot body 1 and a non-stick layer 2. Wherein, the pan body 1 can be a sheet material formed by a metal material or a composite sheet material formed by two or more materials.
The non-stick layer 2 comprises a first layer 21 and a second layer 22, the first layer 21 is connected to the pot body 1, the second layer 22 is connected to one side, away from the pot body 1, of the first layer 21, the first layer 21 and the second layer 22 are respectively an inorganic porous material layer or a self-lubricating material layer, and the granularity of the first layer 21 is larger than that of the second layer 22.
In the cooking utensil provided by the application, the first layer 21 and the second layer 22 are inorganic porous material layers or self-lubricating material layers, the inorganic porous material layers have amorphous structures, the arrangement of atoms in a three-dimensional space is short-range ordered and long-range disordered, and the surface energy is small; and the diameter of the hole is micron-level, so that a large amount of edible oil can be adsorbed in the actual use process, and a layer of oil film is always kept on the surface. The self-lubricating material has a layered crystal structure, and the interlayer slippage is good, just like grease; in addition, the self-lubricating material layer has a special layered structure, a plurality of gaps are formed among the layered structures, the size of the gaps is in a micron level, a large amount of edible oil can be adsorbed in the actual use process, a layer of oil film is always kept on the surface, direct contact between food and the pot body 1 is avoided, the non-stick mechanism of the non-stick layer 2 is met, and therefore the probability that the food sticks to the pot is reduced.
The inorganic porous material has non-stick performance due to the characteristics of low surface energy and porous oil absorption, and the self-lubricating material has non-stick performance due to the characteristics of self-lubrication and porous oil absorption formed by the lamellar crystal, so that the non-stick layer has certain non-stick performance. The inorganic porous material and the self-lubricating material have stable crystals and high melting points, so that the inorganic porous material and the self-lubricating material have better thermal stability and high temperature resistance, and have stable structures and are not easy to change substances in the cooking process, so that the inorganic porous material and the self-lubricating material are not easy to age. Inorganic porous material and self-lubricating material's hardness is big, mechanical strength is big, even when using the shovel to carry out food culinary art, also be difficult for appearing the fish tail to cooking utensil's durability can be effectively improved, cooking utensil's life has been prolonged. The non-stick layer is an inorganic porous material layer or a self-lubricating material layer which is not easy to fall off, so that the non-stick coating adopted in the prior art is replaced, and the inorganic porous material and the self-lubricating material are both natural materials, are healthy and non-toxic, and can ensure the health of a user.
In addition, the granularity of the first layer 21 is larger than that of the second layer 22, the granularity of the first layer 21 is larger, the preparation cost is lower, the impact force on the base material of the pot body 1 is strong, and the first layer 21 is firmly combined with the base material of the pot body 1. The first layer 21 has a larger particle size, so that the formed surface is rougher, the second layer 22 can be firmly combined with the first layer, and the non-stick layer 2 is prevented from falling off after long-term use, so that the service life of the non-stick layer 2 is prolonged. In addition, the second layer 22 has a smaller particle size, so that the specific surface area is large, more edible oil can be adsorbed in the using process, a micro coarse structure can be formed more easily, and a better non-sticking effect can be obtained.
In a specific embodiment, the grain size of the first layer 21 is 300-500 mesh, so that the grain size of the first layer 21 is larger, and the bonding force between the substrate of the pot body 1 and the second layer 22 is stronger. For example, the first layer 21 may have a particle size of 300 mesh, 400 mesh, 480 mesh, 500 mesh, or the like. The first layer 21 has the best performance with this particle size.
In one embodiment, the second layer 22 has a particle size in the range of 500-2000 mesh to provide a smaller particle size of the second layer 22 and to enhance the non-stick effect. For example, the second layer 22 may have a particle size of 500 mesh, 1000 mesh, 1500 mesh, 2000 mesh, etc. The second layer 22 performs best with this particle size.
That is, where the granularity of the first layer 21 is greater than the granularity of the second layer 22, in one embodiment, the granularity of the first layer 21 is only required to be 300-500 mesh; in another embodiment, the second layer 22 only needs to have a particle size of 500-2000 mesh; in a more preferred embodiment, the first layer 21 has a particle size of 300-500 mesh and the second layer 22 has a particle size of 500-2000 mesh. In any of the above-mentioned embodiments, the non-stick property of the non-stick layer 2 can be made good as long as the particle size is within the above-mentioned range.
Further, in some specific embodiments, the grain size of the first layer 21 gradually decreases from the axis of the bottom of the pot body 1 to the position close to the pot opening; or the granularity of the second layer 22 is gradually reduced from the axis of the bottom of the pan body 1 to the position close to the pan opening; or the granularity of the first layer 21 and the second layer 22 is gradually reduced from the axis of the bottom of the pot body 1 to the direction close to the pot opening. Because the food is mainly contacted with the pan bottom in the using process and the turner is also mainly contacted with the pan bottom when the turner is turned, the non-stick layer of the pan bottom is easier to separate. In the embodiment, the granularity of the pot bottom is larger, and the granularity is fine when the granularity is large, so that the structure is compact and the combination with the pot body is tighter, therefore, in the embodiment, the non-stick layer 2 at the pot bottom is combined more firmly, and the service life of the non-stick layer at the pot bottom is prolonged. In addition, the first layer 21 and the second layer 22 at the bottom of the pan have larger granularity, so that the strength of the bottom of the pan can be improved, and the region near the bottom of the pan is prevented from being damaged by a turner and the like in the process of cooking.
In a particular embodiment, the thickness of the non-stick layer 2 from the bottom to one third of the height of the wall of the pan body 1 is greater than the thickness from one third of the height of the wall of the pan body 1 to the mouth of the pan body 1.
No matter the pot is heated by an induction cooker or open fire, the part from the bottom of the pot body 1 to one third of the height of the wall part is heated quickly, and the thicker non-stick layer 2 is beneficial to preventing the damage caused by high temperature. Moreover, the part from the bottom of the pot body 1 to one third of the wall part is easily scratched and abraded by a shovel or hard food, and the thicker non-stick layer can effectively reduce the scratch and abrasion caused by the shovel or the hard food and prolong the service life of the cooking utensil.
As a possible realization, the non-stick layer 2 has a thickness ranging from 80 to 300 μm at the height of the bottom to one third of the wall of the pan 1. And/or the thickness range from one third of the height of the wall part of the pot body 1 to the pot opening of the pot body 1 is 30-180 mu m.
That is, in the case where it is satisfied that the thickness of the non-stick layer 2 at the height of the bottom to one third of the wall portion of the pot body 1 is greater than the thickness of the non-stick layer 2 at the height of the one third of the wall portion of the pot body 1 to the spout of the pot body 1, in one embodiment, it is only necessary that the thickness of the non-stick layer 2 at the height of the bottom to one third of the wall portion of the pot body 1 is in the range of 80-300 μm; in another embodiment, the thickness range from one third of the height of the wall part of the pot body 1 to the pot opening of the pot body 1 is only 30-180 μm; in a more preferred embodiment, the non-stick layer 2 has a thickness ranging from 80 to 300 μm at the level of the bottom of the pan body 1 to one third of the height of the wall, and a thickness ranging from 30 to 180 μm at the level of one third of the height of the wall of the pan body 1 to the mouth of said pan body 1. In any of the above embodiments, the non-stick property of the non-stick layer 2 can be made good as long as the thickness falls within the above range.
In addition, within the thickness range, the non-stick layer 2 can be prevented from falling off, exposing the bottom and the like due to abrasion in the long-term use process because of being too thin, the durable non-stick service life is realized, the uniform heat transfer on the inner surface of the pot can be ensured, and the problems of loose structure, increased pores, reduced coating hardness or adhesive force and the like of the outer surface of the non-stick layer 2 due to too thick non-stick layer 2 can be avoided.
For example, the thickness of non-stick layer 2 at the height of the bottom to one third of the wall of pan body 1 can be 80 μm, 180 μm, 200 μm, 300 μm, etc. The non-stick layer 2 has the best performance when it has the above thickness. Also, the exemplary thickness from one third of the wall of the pot body 1 to the pot mouth of the pot body 1 is 30 μm, 60 μm, 120 μm, 200 μm, 180 μm, etc., and the non-stick layer 2 has the above thickness in this region, the performance is best.
In a particular embodiment, the porosity of the non-stick layer 2, located at the bottom of the pan body 1 up to one third of the height of the wall, is greater than or equal to the porosity at one third of the height of the wall of the pan body 1 up to the mouth of the pan body 1.
In the scheme, the non-stick layer with large porosity at the bottom of the pan is beneficial to adsorption of edible oil, so that the surface of the non-stick layer always keeps a layer of oil film, and food is not easy to stick to the pan when the bottom of the pan is stir-fried, thereby further improving the non-stick effect of the non-stick layer.
In a particular embodiment, the non-stick layer 2 has a porosity in the range of 0.5% to 15%. In the non-stick layer 2, reasonable pores can reduce stress concentration and avoid the generation of coating cracks. If the porosity of the non-stick layer 2 is greater than 15%, the hardness and wear resistance of the non-stick layer 2 may be greatly reduced, resulting in a decrease in the durability of the quasicrystalline coating, and if the porosity of the non-stick layer 2 is less than 0.5%, it may be difficult to achieve technologically. Illustratively, the porosity of the non-stick layer 2 is 0.5%, 1%, 5%, 10%, and 15%, and the non-stick layer 2 performs best when it has this porosity.
Further, the porosity of the non-stick layer 2 at the height from the bottom of the pan body 1 to one third of the wall is in the range of 8% -12%; and/or the porosity range from one third of the height of the wall part of the pot body 1 to the pot opening of the pot body 1 is 0.5-8%. That is, in case it is satisfied that the porosity of the non-stick layer 2 at the height of the bottom to one third of the wall portion of the pot body 1 is greater than the porosity at the height of the one third of the wall portion of the pot body 1 to the spout of the pot body 1, in one embodiment, it is only necessary that the porosity of the non-stick layer 2 at the height of the bottom to one third of the wall portion of the pot body 1 is in the range of 8% -12%; in another embodiment, the porosity range from the one third height of the wall part of the pot body 1 to the pot opening of the pot body 1 is only 0.5-8%; in a more preferred embodiment, the non-stick layer 2 has a porosity ranging from 8% to 12% at the level of one third of the wall of the pan body 1, and a thickness ranging from 0.5% to 8% at the level of one third of the wall of the pan body 1 at the level of the mouth of the pan body 1. In any of the above embodiments, the nonstick property of the nonstick layer 2 can be made better as long as the porosity is within the above range.
The porosity of the non-stick layer 2, for example at the bottom of the pan 1 up to one third of the height of the wall, is 8%, 10% and 12%, the position of the non-stick layer 2 being the one with which it performs best.
Specifically, the first layer 21 and the second layer 22 are the same and are both inorganic porous material layers or self-lubricating material layers; alternatively, the first layer 21 and the second layer 22 are an inorganic porous material layer or a self-lubricating material layer, respectively.
When the inorganic porous material layer is a diatomite layer, a bentonite layer or a zeolite layer, natural inorganic porous materials such as diatomite, bentonite or zeolite are convenient to obtain raw materials and low in manufacturing cost. The self-lubricating material layer is a graphite layer, a graphite fluoride layer and a molybdenum disulfide layer, raw materials are convenient to obtain, and the manufacturing cost is low.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A cooking appliance, comprising:
a pan body (1);
a non-stick layer (2), the non-stick layer (2) comprising at least a first layer (21) and a second layer (22); the first layer (21) is connected to the pot body (1), and the second layer (22) is connected to one side, away from the pot body (1), of the first layer (21);
the first layer (21) and the second layer (22) are inorganic porous material layers or self-lubricating material layers;
the first layer (21) has a grain size larger than the grain size of the second layer (22).
2. The cooking appliance of claim 1, wherein: the particle size range of the first layer (21) is 300-500 meshes; and/or
The second layer (22) has a particle size range of 500-2000 mesh.
3. The cooking appliance of claim 1, wherein: the granularity of the first layer (21) is gradually reduced from the axis of the bottom of the pot body (1) to the position close to the pot opening; and/or
The granularity of the second layer (22) is gradually reduced from the axis of the bottom of the pot body (1) to the position close to the pot opening.
4. Cooking appliance according to any one of claims 1 to 3, characterized in that the thickness of the non-stick layer (2) at the bottom to one third of the height of the wall of the pot (1) is greater than the thickness at one third of the height of the wall of the pot (1) to the spout of the pot (1).
5. Cooking appliance according to claim 4, characterized in that the thickness of the non-stick layer (2) at the bottom to one third of the height of the wall of the pot (1) is in the range of 80-300 μm; and/or
The thickness range from one third of the height of the wall part of the pot body (1) to the pot opening of the pot body (1) is 30-180 mu m.
6. Cooking appliance according to any one of claims 1 to 3, characterised in that the porosity of the non-stick layer (2) at the bottom to one third of the height of the wall of the pot (1) is greater than or equal to the porosity at the rim of the pot (1) at one third of the height of the wall of the pot (1).
7. The cooking appliance according to claim 6, wherein the porosity of the non-stick layer (2) ranges from 0.5% to 15%.
8. Cooking appliance according to claim 6, characterized in that the porosity of the non-stick layer (2) at the bottom to one third of the height of the wall of the pot (1) is in the range 8% -12%; and/or
The porosity range from one third of the height of the wall part of the pot body (1) to the pot opening of the pot body (1) is 0.5-8%.
9. The cooking appliance according to any one of claims 1 to 3, wherein the first layer (21) and the second layer (22) are identical, both being a layer of inorganic porous material or a layer of self-lubricating material; or the like, or, alternatively,
the first layer (21) and the second layer (22) are respectively an inorganic porous material layer or a self-lubricating material layer.
10. The cooking appliance according to any one of claims 1 to 3, wherein the layer of inorganic porous material is a layer of diatomaceous earth, bentonite or zeolite; the self-lubricating material layer is a graphite layer, a graphite fluoride layer or a molybdenum disulfide layer.
CN202021245497.0U 2019-06-28 2020-06-28 Cooking utensil Active CN212698557U (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
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