Non-stick cast iron pan

Abstract

The utility model discloses a non-stick cast iron pan which comprises a pan body made of cast iron, air holes are formed in the pan body, a non-stick area is arranged on the inner surface of the pan body, a plurality of blind holes formed in the surface of the pan body are formed in the non-stick area, and the blind holes can be communicated with the air holes formed in the pan body. According to the cast iron pan, the air holes communicated with the air holes in the cast iron pan body are formed in the pan body, and the non-stick area is formed, so that the non-stick effect of the cast iron pan can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchenware, in particular to a non-stick cast iron pan. Background Art

[0002] With the advancement of modern technology, the materials of cookware have continued to evolve, including iron, aluminum, stainless steel, titanium, etc. Non-stick pans are special pans with a special coating on the bottom to prevent food from sticking. Currently, the most common non-stick coatings include Teflon and ceramic, but long-term use may have adverse effects on human health; while uncoated cookware is prone to sticking.

[0003] Research has found that even without treatment, the non-stick properties of cast iron pans are better than those of stretched iron pans. This is because there are many tiny pores on the surface and inside of cast iron pans, which help to improve the non-stick effect. In the prior art, uncoated cast iron pans are usually nitrided to increase the surface hardness to enhance their non-stick properties, and are treated by applying or dipping in grease before use. However, although the non-stick effect of this treatment method is better than that of stretched iron pans, it cannot be compared with coated pans. Therefore, how to further improve the non-stick effect of cast iron pans is still an issue worthy of in-depth discussion. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides a non-stick cast iron pan, which can improve the non-stick effect of the pan by providing a blind hole in the non-stick area of ​​the pan body that is connected to the air hole inside the pan body.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a non-stick cast iron pan, comprising a pan body made of cast iron, wherein pores are formed inside the pan body, a non-stick area is provided on the inner surface of the pan body, and the non-stick area is provided with a plurality of blind holes opened on the surface of the pan body, and the blind holes can be connected to the pores formed inside the pan body.

[0006] In the present technical solution, specific non-stick areas are set inside the cast iron pot, and blind holes are opened in these areas. The design of these blind holes enables them to be interconnected with the pores inside the cast iron pot body. This structural design has multiple advantages when used: the interconnected internal space can store more oil molecules during the cooking process, which helps to form a better non-stick surface during cooking; when the cast iron pot is heated, the air inside will expand. Since the mouth of the blind hole surface is small, a small pressure is generated when the air is released, and this pressure can better lift the food from the bottom of the pot, thereby further improving the non-stick effect of the pot body; the connection design of the blind hole and the pores also helps to allow the gas to enter the interior better when the non-stick area of ​​the pot body is oxidized. This means that the pores inside the cast iron pot body can also be oxidized, which not only improves the non-stick properties, but also enhances the anti-oxidation effect and reduces the pitting phenomenon of the pot body during use.

[0007] In summary, this technical solution significantly improves the non-stick effect and durability of the cast iron pan through ingenious structural design, making it a healthier and more convenient cooking option.

[0008] Furthermore, the blind holes are connected to a plurality of pores distributed around the blind holes, respectively, so as to increase the number of connected blind holes and pores, further increase the space of the internal pores, and improve the non-stick effect.

[0009] Furthermore, the plurality of blind holes are connected through the air holes and are interconnected to further improve the non-stick effect.

[0010] Furthermore, the plurality of blind holes are connected through the plurality of air holes, and the plurality of air holes are also interconnected, which can further improve the non-stick effect.

[0011] Furthermore, the blind holes are evenly and densely distributed in the non-stick area.

[0012] Furthermore, the blind hole is configured as a circular hole, the diameter of the blind hole is not greater than 200 um, and the depth of the blind hole is not less than 100 nm.

[0013] Furthermore, the surface of the non-stick area is oxidized to form an oxide layer on the surface of the non-stick area, thereby preventing oxidation and rusting of the non-stick area of ​​the pot during use, thereby improving the use effect and the quality of the pot.

[0014] Furthermore, the blind hole is opened by laser.

[0015] Furthermore, the non-stick area includes a flat area arranged at the bottom of the pot body, which facilitates the storage of the pot body and increases the heating area, so that the pot body is heated more evenly.

[0016] Furthermore, the edge of the pot mouth of the pot body is formed with a flange folded outward, and the flange and the inner wall of the pot body have a smooth transition, thereby improving the aesthetics and preventing users from being scalded during cooking.

[0017] These features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. The best implementation or means of the utility model will be fully presented in conjunction with the drawings, but it is not a limitation of the technical solution of the utility model. In addition, these features, elements and components appearing in each of the following texts and drawings are multiple, and are marked with different symbols or numbers for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 This is a front cross-sectional view of a non-stick cast iron pan according to one embodiment of the present invention;

[0020] Figure 2 For this utility model Figure 1 Middle partial enlarged picture;

[0021] Figure 3 It is a schematic diagram of the pore structure inside a cast iron pot in the prior art.

[0022] in,

[0023] In the figure: 10, pot body; 11, non-stick area; 12, blind hole; 13, air hole; 14, flange. DETAILED DESCRIPTION

[0024] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0025] References in this specification to "one embodiment" or "an example" or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment of the present patent disclosure. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0026] Cast iron pots have the characteristics of uniform heating, complete functions, good heat preservation performance, etc. At the same time, they can enhance the deliciousness of food during use, which is a pot favored by many users. However, the pores of conventional cast iron pots are mostly sealed inside the pot body and cannot be connected to the outside world. Figure 3Therefore, the cast iron pan can have a certain non-stick effect, but the non-stick effect is poor.

[0027] Based on this, the utility model discloses a non-stick cast iron pan, see attached Figure 1 , 2 , including a pot body 10 made of cast iron, wherein the pot body 10 has pores 13 formed inside. It should be noted that the pores 13 are naturally formed by the material characteristics of the cast iron pot body 10 itself, and are distributed inside the pot body 10. In this embodiment, a non-stick area 11 is provided on the inner surface of the pot body 10, and a plurality of blind holes 12 are provided in the non-stick area 11, and the blind holes 12 can be connected with the pores 13 formed inside the pot body 10. By providing the blind holes 12 in the pot body 10, the blind holes 12 and the pores 13 formed inside the pot body 10 are connected with each other, so that when the cooker is used, the internal space connected with each other can not only store more oil molecules, but also the air inside the space can expand after heating. Since the opening of the surface of the blind hole 12 is small, the small pressure generated when the air is discharged can better lift the food, thereby improving the non-stick effect of the pot body 10. The non-stick cast iron pot in the utility model can form a good physical non-stick effect without coating after processing by utilizing the characteristics of the cast iron pot itself, thereby improving the safety during use.

[0028] In addition, due to the structural design in which the blind hole 12 and the pores 13 are connected, when the non-stick area 11 of the pot body 10 is oxidized, the oxidizing gas can better enter the pores 13 inside the pot body 10, that is, the inner walls of the pores 13 inside the cast iron pot body 10 can also be oxidized, which can not only improve the non-stick property of the pot body 10 but also improve the anti-oxidation effect of the pot body 10, reduce the pitting corrosion of the pot body 10 during use, and improve the quality and service life of the pot body 10.

[0029] In one embodiment of the present invention, the blind hole 12 is respectively connected to a plurality of air holes 13 distributed around the blind hole 12. In this embodiment, the number of air holes 13 connected to the blind hole 12 is increased, the space of the internal pores is further expanded, the storage capacity of oil and water is improved, and the non-stick effect is further improved.

[0030] Of course, in actual production, the blind hole 12 may be connected to other blind holes 12 through one air hole 13, or may be connected to other blind holes 12 through multiple air holes 13. In this way, multiple blind holes 12 are connected to each other, which can further improve the storage capacity of oil and water and improve the non-stick effect. Moreover, multiple air holes 13 can also be connected to each other, which can further increase the volume of the storage space and further improve the non-stick effect.

[0031] Referring to the attached drawings, the blind holes 12 are evenly distributed in the non-stick area 11. This arrangement not only improves the overall appearance of the pot body 10 and makes the pot body 10 more aesthetically pleasing, but also enables the cast iron pot to achieve a better non-stick effect. In actual arrangement, the distance between each blind hole 12 can be set as small as possible within the allowable range (ensuring the strength and wear resistance of the pot body 10 itself).

[0032] In one embodiment of the present invention, the blind hole 12 is set as a circular hole, the diameter of the blind hole 12 is not greater than 200um, and the depth of the blind hole 12 is not less than 100nm. Of course, it is easy to imagine that the cross-sectional shape of the blind hole 12 can be set to other shapes besides a circle, such as a regular polygon, an ellipse, etc.

[0033] The inner surface of the pot body 10 of the utility model is oxidized and an oxide layer is formed on the surface of the non-stick area 11. It should be noted that the surface oxidation treatment of the non-stick area 11 of the utility model is carried out after the blind hole 12 is processed, which can avoid oxidation and rusting of the non-stick area 11 of the pot body 10 during use, thereby improving the use effect and the quality of the pot body 10. It should be noted that the oxidation treatment performed here can not only oxidize the surface of the pot body 10, but also the inner wall of the blind hole 12, and even through the connecting structure between the blind hole 12 and the pore 13, the inner wall of the pore 13 can be oxidized, which can greatly improve the surface quality of the cast iron pot.

[0034] In actual production, the blind hole 12 is made by laser drilling. Laser drilling irradiates the processed material with a high-energy laser beam, causing it to quickly heat to the vaporization temperature, thereby evaporating and forming a hole. This process is a thermophysical process of the interaction between laser and material. Laser drilling technology has the advantages of fast speed, high efficiency, and no tool loss.

[0035] The non-stick area 11 of the utility model includes a plane area arranged at the bottom of the pot body 10. The plane area is within the range of the non-stick area 11. The setting of the plane area of ​​the pot bottom makes the contact between the pot body 10 and the heating surface (such as the stove surface or the electric hot plate) more stable and comprehensive. This design ensures that the heat energy can be transferred from the heat source to the pot bottom more efficiently, and then evenly distributed to the entire pot body 10. Compared with a pot bottom with feet or unevenness, a flat pot bottom can achieve a better heat conduction effect under a heat source of the same power; further, the flat pot bottom greatly reduces the probability of deformation due to its uniform heating and stress distribution, thereby extending the service life of the pot. In addition, the plane area of ​​the pot body 10 enables it to be applicable to a variety of heat sources including induction cookers, electric stoves, gas stoves, etc., increasing the scope of use of the pot body 10. In addition, when cooking or storing, the setting of the flat area of ​​the pot bottom can also improve stability and prevent the pot body 10 from sliding or tilting.

[0036] The pot mouth edge of the pot body 10 of the utility model is formed with a flange 14 that is folded outward, and the flange 14 is smoothly transitioned to the inner wall of the pot body 10. The open end of the pot body 10 of the utility model is folded outward and formed with a flange 14, and the flange 14 is smoothly transitioned to the inner wall of the pot body 10. After the pot body 10 is heated, its edge portion often becomes hot. The flange 14 can effectively prevent the user from accidentally touching the high-temperature pot edge during operation, thereby reducing the risk of scalding. Especially for operations that often require stirring or tilting the pot body 10, such as stir-frying, pouring out the contents of the pot, etc., the existence of the flange 14 greatly enhances the safety of operation. The flange 14 can increase the structural stability of the pot body 10, especially when the pot body 10 is large or thin, the flange 14 is fixed to the pot mouth like a reinforcement ring, so that the entire pot body 10 is stronger when bearing weight or external force, and has a longer service life; the design of the flange 14 also helps to guide liquid or solid ingredients to be poured out more easily, reducing wall hanging and residue. Especially when pouring thick or sticky substances, such as sauces or dishes with juice, the flange 14 plays a role of guiding the flow, making the operation cleaner and more efficient. In addition, the flange 14 not only has the above-mentioned practical effects, but also adds to the beauty of the pot body 10, breaking the monotonous round or straight line design of the traditional pot body 10, and increasing the visual layering and modernity of the product through the smooth line changes. This design can better attract consumers' attention in the market.

[0037] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. A non-stick cast iron pan, characterized in that: The invention comprises a pot body (10) made of cast iron, wherein air holes (13) are formed inside the pot body (10), a non-stick area (11) is provided on the inner surface of the pot body (10), and the non-stick area (11) is provided with a plurality of blind holes (12) opened on the surface of the pot body (10), and the blind holes (12) can be communicated with the air holes (13) formed inside the pot body (10).

2. The non-stick cast iron pan according to claim 1, characterized in that: The blind hole (12) is respectively connected to a plurality of air holes (13) distributed around the blind hole (12).

3. The non-stick cast iron pan according to claim 1, characterized in that: The plurality of blind holes (12) are connected via the air hole (13).

4. The non-stick cast iron pan according to claim 3, characterized in that: The plurality of blind holes (12) are connected via the plurality of air holes (13).

5. The non-stick cast iron pan according to claim 1, characterized in that: The blind holes (12) are evenly and densely distributed in the non-stick area (11).

6. The non-stick cast iron pan according to any one of claims 1 to 5, characterized in that: The blind hole (12) is configured as a circular hole, the diameter of the blind hole (12) is not greater than 200 um, and the depth of the blind hole (12) is not less than 100 nm.

7. The non-stick cast iron pan according to any one of claims 1 to 5, characterized in that: The inner surface of the pot body (10) is subjected to oxidation treatment and an oxide layer is formed on the inner surface of the pot body.

8. The non-stick cast iron pan according to any one of claims 1 to 5, characterized in that: The blind hole (12) is opened by laser.

9. The non-stick cast iron pan according to any one of claims 1 to 5, characterized in that: The non-stick area (11) comprises a plane area arranged at the bottom of the pot body (10).

10. The non-stick cast iron pan according to any one of claims 1 to 5, characterized in that: The pot mouth edge of the pot body (10) is formed with a flange (14) folded outwards, and there is a smooth transition between the flange (14) and the inner wall of the pot body (10).

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