Non-stick cooking container

Abstract

The utility model discloses a non-stick cooking container which comprises a container body, the container body is provided with a containing groove used for containing food materials, random lines are arranged in the containing groove, the random lines comprise a plurality of concave pits distributed randomly and a plurality of convex points formed by the concave pits in an enclosing mode, and the convex points are arranged in the containing groove. The area of the random lines is not smaller than one half of the area of the inner side of the containing groove. According to the utility model, more air gaps are created and direct physical contact points are reduced through the introduction of random lines, and mutual support among rice particles is increased through the irregularity of the lines, so that rice can be separated from one another more easily in the heating expansion process instead of being tightly attached to the surface of a container. According to the cooking utensil, the contact area of rice and the inner surface of the cooking utensil can be reduced by about 50%, so that the falling convenience of rice is greatly improved while the excellent cooking effect is kept, good non-stickiness is achieved, and the dual requirements of a user for cooking efficiency and eating convenience are met.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensil technology, and in particular to a non-stick cooking container. Background Technology

[0002] In the culinary field, especially in rice cooking, the design of the cooking container has a significant impact on the taste, doneness, and final ease of consumption of rice. Traditional cooking containers, such as the inner pot of a rice cooker, typically feature smooth or uniformly textured surfaces designed to improve heating efficiency and ease of cleaning. However, this design often results in rice easily sticking to the inner surface of the container after cooking, particularly at the bottom and edges, making separation and cleaning before consumption inconvenient.

[0003] To address the issue of rice sticking, the industry has explored various methods, including but not limited to using non-stick coatings such as Teflon, increasing the roughness of the container's inner surface to reduce the contact area, and improving the interaction between the rice and the container through special structural designs. While non-stick coatings effectively reduce adhesion, long-term wear and peeling raise health and safety concerns. Simply increasing surface roughness, while reducing adhesion to some extent, may also affect the even heating and texture of the rice. Utility Model Content

[0004] To overcome at least one of the defects described in the prior art, this invention provides a non-stick cooking container that solves the problem of rice sticking.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A non-stick cooking container includes a container body having a receiving groove for holding food. The receiving groove is provided with random patterns, which include a plurality of randomly distributed pits and a plurality of raised points formed by the plurality of pits. The area of ​​the random patterns is not less than half of the inner area of ​​the receiving groove.

[0007] By adopting the above solution, the introduction of random patterns not only creates more air gaps and reduces direct physical contact points, but also increases the mutual support between rice grains through the irregularity of the patterns. This allows the rice to more easily separate from each other during the heating and expansion process, rather than sticking tightly to the container surface. This reduces the contact area between the rice and the inner surface of the cooking utensil by approximately 50%, thereby greatly improving the ease of rice release while maintaining excellent cooking results. It achieves good non-stick properties, meeting users' dual needs for cooking efficiency and ease of consumption.

[0008] Furthermore, the container body is formed by stretching a single layer of iron plate or multiple layers of sheet metal.

[0009] By adopting the above solution, the good thermal conductivity and structural strength of single-layer iron plates or multi-layer plates ensure uniform heating during the cooking process and the durability of the container.

[0010] Furthermore, the single-layer iron plate is a cold-rolled iron plate or a galvanized iron plate.

[0011] By adopting the above scheme, it has the characteristics of high dimensional accuracy, good surface finish, dense structure and excellent mechanical properties.

[0012] Furthermore, the multilayer sheet comprises, from one side to the other, a first stainless steel layer, a second metal layer, and a third stainless steel layer; the random texture is located on the third stainless steel layer.

[0013] By adopting the above solution, the combination of multiple layers of panels gives the cooking container excellent heat conduction, structural strength, and corrosion resistance, ensuring cooking results and long-term stability. The combination of the smooth surface and random textured design of the stainless steel enhances both the aesthetics and practicality of the cooking container, meeting users' dual needs for a superior cooking experience and ease of cleaning.

[0014] Furthermore, the multilayer sheet comprises, from one side to the other, a first stainless steel layer, a second metal layer, and a third pure titanium plate, with the random texture located on the third pure titanium plate.

[0015] By adopting the above approach, pure titanium, a recyclable metal, can be used as the inner layer material of cooking containers to help reduce environmental pollution and promote sustainable development. It also has excellent thermal conductivity, structural strength, and corrosion resistance, ensuring cooking performance and the long-term stability of the container.

[0016] Furthermore, the container body comprises, from top to bottom: a pot opening section, the upper edge of which gradually flips outward to form a flange; a retractable section, the upper end of which is connected to the lower edge of the pot opening section, the diameter of the retractable section being smaller than the diameter of the pot opening section; a waist section, the upper end of which is connected to the lower edge of the retractable section, the diameter of the waist section being larger than the diameter of the pot opening section; and a base section, the upper end of which is connected to the lower edge of the waist section; wherein the longitudinal height of the base section is smaller than the longitudinal height of the waist section.

[0017] By adopting the above solution, the entire container body transitions gradually from top to bottom, with tight connections between all parts and a stable structure. This satisfies both the functional requirements of a cooking container and takes into account both aesthetics and practicality. Whether cooking rice, making soup, or storing food, it demonstrates excellent performance and a superior user experience.

[0018] Furthermore, the random texture covers the entire inner side of the base section and at least part of the inner side of the waist section.

[0019] By adopting the above solution, the non-stick properties of the bottom section are met, and the container can exhibit good performance and user experience whether cooking rice, making soup, steaming vegetables or storing food.

[0020] Furthermore, at least one side of the flange is provided with a flange.

[0021] By adopting the above solution, the thickness and strength of the container opening are increased, making the container more stable when subjected to internal pressure or external impact. The flange can be designed as a hook or ring structure, making it easy for users to hang the container on kitchen hooks, cabinet edges or other supports, saving kitchen space and making it easy to access. When the flange is used in conjunction with a sealing cap or screw cap, it can form a tighter seal, reducing the leakage of steam, odors or liquids, and keeping the food inside the container hygienic and fresh.

[0022] Furthermore, the depth H of the protrusions in the pits is all the same, and H is 0.2mm to 0.5mm.

[0023] By adopting the above solution, the non-stick properties and ease of cleaning are improved, while avoiding the risk of reduced container strength or food burning caused by excessive depth.

[0024] Furthermore, a silicon dioxide film is disposed on the surface of the random texture, the thickness of the silicon dioxide film being 3μm to 8μm.

[0025] By adopting the above-mentioned method, it is possible to resist the corrosion of various acids, alkalis, and organic solvents. Therefore, covering the container surface with a layer of silica film can significantly improve its corrosion resistance and prevent container damage or food contamination caused by chemical corrosion; the silica film also has good abrasion resistance, which can resist the friction and scratching of food particles, cooking tools, or cleaning brushes, thus extending the service life of the container.

[0026] In summary, the non-stick cooking container provided by this utility model has the following technical effects:

[0027] 1. By introducing random textures, including randomly distributed pits and bumps, the direct contact area between rice and other ingredients and the inner surface of the cooking container is reduced. This design effectively prevents rice from sticking to the inner surface of the container after cooking, especially at the bottom and edges, thus simplifying the separation and cleaning process before consumption.

[0028] 2. The non-stick property means that rice can be heated more evenly during cooking, achieving the ideal degree of doneness without excessive stirring. This not only shortens cooking time but also preserves the texture and nutrients of rice and other ingredients;

[0029] 3. Compared with traditional cooking containers that use non-stick coating materials, this non-stick cooking container achieves its non-stick effect through physical design, avoiding health and safety issues that may be caused by coating wear and peeling after long-term use;

[0030] 4. Cleaning cooking containers is more convenient, as less detergent and water are needed to easily remove residues, extending the lifespan of the containers. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0032] Figure 2 This is a partial exploded structural diagram of an embodiment of the present invention;

[0033] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0034] Figure 4 This is an exploded structural diagram of the oiling mechanism according to an embodiment of the present invention;

[0035] Figure 5 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0036] The meanings of the reference numerals in the attached drawings are as follows: 1. Container body; 11. Receiving groove; 12. Random texture; 121. Dent; 122. Raised point; 13. Pot opening section; 131. Flanged edge; 132. Flange; 14. Retracted section; 15. Waist section; 16. Base section; 2. Rice. Detailed Implementation

[0037] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0038] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0039] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0041] See Embodiment 1 of this utility model. Figures 1-5 As shown, a non-stick cooking container is disclosed, including a container body 1. Optionally, the container body 1 is made of a single layer of iron plate or multiple layers of sheet metal stretched and formed to create a shape unique to cooking utensils. Specifically, the container body 1 has a receiving groove 11 for holding food. The receiving groove 11 is provided with random textures 12. The random textures 12 are treated with a surface hardening process, preferably shot peening or shot blasting, so that the random textures 12 include multiple randomly distributed pits 121 and multiple protrusions 122 formed by the multiple pits 121. The area of ​​the random textures 12 is not less than half of the inner area of ​​the receiving groove 11, which meets the daily need for non-stick food. At the same time, the introduction of random textures 12 not only creates more air gaps and reduces direct physical contact points, but also increases the mutual support between rice grains 2 through the irregularity of the texture, so that the rice 2 can more easily separate from each other rather than stick tightly to the container surface during the process of heating and expansion. It can reduce the contact area between rice and the inner surface of cooking utensils by about 50%, thereby greatly improving the ease of rice detachment while maintaining excellent cooking results, achieving good non-stick properties, and meeting users' dual needs for cooking efficiency and ease of eating.

[0042] In some embodiments, the container body 1 is made of a single-layer iron plate, preferably a cold-rolled iron plate or a galvanized iron plate. Cold-rolled iron plates and galvanized iron plates have the characteristics of high dimensional accuracy, good surface finish, dense structure, and excellent mechanical properties. In other embodiments, the specific material of the single layer is not limited, as long as the above-described solution can be achieved.

[0043] In some embodiments, the container body 1 is made of multi-layered sheet material. Specifically, the multi-layered sheet material includes, from one side to the other, a first stainless steel layer, a second metal layer, and a third stainless steel layer. The random texture 12 is located on the third stainless steel layer. The combination of the multi-layered sheet material gives the cooking container excellent heat conduction performance, structural strength, and corrosion resistance, ensuring cooking results and long-term stability of the container. The combination of the smooth surface of the stainless steel and the random texture 12 design enhances both the aesthetics and practicality of the cooking container, meeting users' dual needs for cooking experience and ease of cleaning.

[0044] In some embodiments, the container body 1 is made of multi-layered sheet material. Specifically, the multi-layered sheet material includes a first stainless steel layer, a second metal layer and a third pure titanium plate from one side to the other. The random texture 12 is located on the third pure titanium plate. Pure titanium is a recyclable metal. Using pure titanium as the inner layer material of the cooking container helps reduce environmental pollution and promotes sustainable development. At the same time, it has excellent thermal conductivity, structural strength and corrosion resistance, ensuring the cooking effect and long-term stability of the container.

[0045] In this embodiment 1, the container body 1 comprises, from top to bottom, a pot opening section 13, a retractable section 14, a waist section 15, and a base section 16. The upper edge of the pot opening section 13 gradually flips outward to form a flange 131. The upper end of the retractable section 14 is connected to the lower edge of the pot opening section 13, and the diameter of the retractable section 14 is smaller than that of the pot opening section 13. The upper end of the waist section 15 is connected to the lower edge of the retractable section 14, and the diameter of the waist section 15 is larger than that of the pot opening section 13. The upper end of the base section 16 is connected to the lower edge of the waist section 15. The vertical height of the base section 16 is smaller than that of the waist section 15. The entire container body 1 gradually transitions from top to bottom, with tight connections between the parts, resulting in a stable structure that satisfies both the functional requirements of a cooking container and its aesthetics and practicality. Whether cooking rice 2, making soup, or storing food, it exhibits excellent performance and user experience. The random texture 12 covers the entire inner side of the base section 16 and at least part of the inner side of the waist section 15. This design satisfies the non-stick properties of the base section 16, ensuring that the container exhibits excellent performance and user experience whether cooking rice 2, making soup, steaming vegetables, or storing food.

[0046] In some embodiments, a flange 132 is provided on at least one side of the flange 131. In this embodiment 1, flanges 132 are provided on both the upper and lower sides of the flange. The upper flange 132 can maintain the water flow guiding effect during the pouring process, making it less likely to adhere to the outside of the flange. At the same time, when the upper flange 132 is used in conjunction with a sealing cap or screw cap, it can form a tighter sealing surface, reducing the leakage of steam, odors, or liquids, and keeping the food in the container hygienic and fresh. The lower flange 132 increases the thickness and strength of the container opening, making the container more stable when subjected to internal pressure or external impact. At the same time, the lower flange 132 forms a hook or ring structure, making it convenient for users to hang the container on kitchen hooks, cabinet edges, or other supports, saving kitchen space and making it easy to access.

[0047] It should be noted that the depth H of the protrusions 122 in the recess 121 is consistent, and H is between 0.2mm and 0.5mm. Within this depth range, the non-stick properties and ease of cleaning are improved, while avoiding the risk of reduced container strength or food burning due to excessive depth.

[0048] In some embodiments, to further improve the non-stick properties and inherent strength of the random texture 12, a silica film is further disposed on the surface of the random texture 12. Preferably, the thickness of the silica film is 3μm to 8μm. It can resist the erosion of various acids, alkalis, and organic solvents. Therefore, covering the container surface with a silica film can significantly improve its corrosion resistance, preventing container damage or food contamination caused by chemical corrosion; the silica film also has good abrasion resistance, resisting friction and scratching from food particles, cooking tools, or cleaning brushes, extending the service life of the container.

[0049] When using, participate Figure 5 As shown, during the cooking process, ingredients such as rice 2 come into contact with the protrusions 122, achieving stable support. The contact area between the two is greatly reduced due to the influence of the pits 121, thus achieving good non-stick properties and making it easy to clean.

[0050] In summary, the non-stick cooking container provided by this utility model has the following technical effects:

[0051] 1. By introducing random textures 12, including randomly distributed pits 121 and bumps 122, the direct contact area between rice 2 and other ingredients and the inner surface of the cooking container is reduced. This design effectively prevents rice 2 from sticking to the inner surface of the container after cooking, especially at the bottom and edge areas of rice 2, thus simplifying the separation steps and cleaning work before consumption;

[0052] 2. The non-stick property means that the rice 2 can be heated more evenly during cooking, achieving the ideal degree of doneness without excessive stirring. This not only shortens cooking time but also preserves the taste and nutrients of the rice 2 and other ingredients;

[0053] 3. Compared with traditional cooking containers that use non-stick coating materials, this non-stick cooking container achieves its non-stick effect through physical design, avoiding health and safety issues that may be caused by coating wear and peeling after long-term use;

[0054] 4. Cleaning cooking containers is more convenient, as less detergent and water are needed to easily remove residues, extending the lifespan of the containers.

[0055] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A non-stick cooking container, characterized in that, The container includes a container body (1), which has a receiving groove (11) for holding food ingredients. The receiving groove (11) is provided with random patterns (12). The random patterns (12) include a plurality of randomly distributed pits (121) and a plurality of protrusions (122) formed by the plurality of pits (121). The area of ​​the random patterns (12) is not less than half of the inner area of ​​the receiving groove (11).

2. The non-stick cooking container according to claim 1, characterized in that, The container body (1) is formed by stretching a single layer of iron plate or multiple layers of sheet metal.

3. A non-stick cooking container according to claim 2, characterized in that, The single-layer iron plate is a cold-rolled iron plate or a galvanized iron plate.

4. A non-stick cooking container according to claim 3, characterized in that, The multilayer sheet comprises a first stainless steel layer, a second metal layer and a third stainless steel layer from one side to the other; the random pattern (12) is located on the third stainless steel layer.

5. A non-stick cooking container according to claim 3, characterized in that, The multilayer plate comprises, from one side to the other, a first stainless steel layer, a second metal layer and a third pure titanium plate, with the random texture (12) located on the third pure titanium plate.

6. A non-stick cooking container according to claim 1, characterized in that, The container body (1) comprises, from top to bottom: The upper edge of the pot opening section (13) gradually flips outward to form a flange (131); The retractable section (14) is connected at its upper end to the lower edge of the pot opening section (13), and the diameter of the retractable section (14) is smaller than the diameter of the pot opening section (13). Waist section (15), the upper end of the waist section (15) is connected to the lower edge of the retracted section (14), and the diameter of the waist section (15) is larger than the diameter of the pot mouth section (13). The upper end of the bottom support section (16) is connected to the lower edge of the waist section (15); The longitudinal height of the base section (16) is less than the longitudinal height of the waist section (15).

7. A non-stick cooking container according to claim 6, characterized in that, The random pattern (12) covers the entire inner side of the base section (16) and at least part of the inner side of the waist section (15).

8. A non-stick cooking container according to claim 6, characterized in that, At least one side of the flange (131) is provided with a flange (132).

9. A non-stick cooking container according to claim 1, characterized in that, The depth H of the protrusions (122) of the pit (121) is the same, and H is 0.2mm to 0.5mm.

10. A non-stick cooking container according to claim 1, characterized in that, The surface of the random texture (12) is further provided with a silicon dioxide film, the thickness of which is 3μm to 8μm.

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