Double-concave double-bottom oil gathering stainless steel threaded pot and preparation method thereof

Abstract

The invention relates to the technical field of cookware, in particular to a double-inner-concave double-bottom oil gathering stainless steel threaded pot and a preparation method thereof.The double-inner-concave double-bottom oil gathering stainless steel threaded pot comprises a cooking mechanism, a holding mechanism is installed on the cooking mechanism, a limiting mechanism is installed on the holding mechanism, a supporting mechanism is installed on the cooking mechanism, and a protection mechanism is installed on the holding mechanism; the cooking mechanism facilitates cooking work and has good oil gathering and heat conduction performance, the holding mechanism and the limiting mechanism are matched, the cooking mechanism is convenient to hold and operate, meanwhile, the holding mechanism and the cooking mechanism are convenient to quickly disassemble and assemble, the lifting mechanism is convenient to play a role in saving labor when the cooking mechanism is held, and the cooking efficiency is improved. Meanwhile, the cooking mechanism can be conveniently and vertically erected against the wall, the temporary placement effect is achieved, through installation of the protection mechanism, the temperature and time during cooking can be well monitored, the dish cooking effect is better, and temporary illumination can be achieved in the special environment.

Description

Technical Field

[0001] The present invention relates to the technical field of cookware, and specifically relates to a double-inwardly concave composite bottom oil-gathering stainless steel threaded pot and a preparation method thereof. Background Art

[0002] A pot is a cooking utensil that can be used for various cooking operations such as cooking, boiling, frying, deep-frying, stir-frying, etc. The pot has a long history of use and is an essential tool in cooking. It can supplement trace amounts of iron in the human body. With the progress of technology, different cookware is used according to different food ingredients, cooking stoves, and usage environments, thus enriching people's lives.

[0003] However, in the prior art, traditional cookware designs often focus on the overall structure and material of the pot body, but pay insufficient attention to the detailed design of the bottom of the pot. This results in the fact that during cooking, grease is likely to spread on the bottom of the pot, not only affecting the cooking effect but also increasing the cleaning difficulty. In addition, the bottom design of existing cookware has obvious deficiencies in heat conduction efficiency and grease aggregation, and cannot meet the needs of modern cooking for high efficiency, energy conservation, and ease of use. Moreover, when the cookware is temporarily placed, it is not convenient to place it vertically against the wall, and it is easy to slip. Also, the cookware lacks components such as temperature and lighting, and it is not convenient for users to well control the temperature when needed, and it is not convenient to provide timely lighting in special environments, which is likely to cause scalding accidents. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a double-inwardly concave composite bottom oil-gathering stainless steel threaded pot and a preparation method thereof.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a double-inwardly concave composite bottom oil-gathering stainless steel threaded pot, including a cooking mechanism, a holding mechanism is installed on the cooking mechanism, a limiting mechanism is installed on the holding mechanism, a lifting mechanism is installed on the cooking mechanism, and a protection mechanism is installed on the holding mechanism.

[0006] Specifically, the cooking mechanism includes a pot body, an inner steel and outer aluminum composite sheet is installed on the inner side wall of the pot body, a spiral texture groove is provided at the bottom side inside the pot body, a composite bottom heat-conducting aluminum sheet is installed at the bottom of the pot body, a composite bottom magnetic-conducting stainless steel sheet is installed at the bottom of the composite bottom heat-conducting aluminum sheet, and the middle of the composite bottom heat-conducting aluminum sheet is thin and the outer ring is thick.

[0007] Specifically, the holding mechanism includes a connecting seat, the connecting seat is installed on the outer side of the pot body, and a handle is installed at one end of the connecting seat.

[0008] Specifically, a screw rod is fixedly connected to the center of one end of the connecting seat, a thread groove is provided inside one end of the handle, the screw rod is threadedly connected to the handle through the thread groove, a rubber pad is installed at one end of the connecting seat, and one end of the handle abuts against the rubber pad.

[0009] Specifically, a top block is installed inside the handle, one end of the top block is slidably connected to the inside of the handle through a resistance spring, and the other end of the top block extends to the inside of the thread groove to resist the screw rod, and the top block is made of rubber material.

[0010] Specifically, the limiting mechanism includes a limiting groove, a limiting groove is provided on the inner side of one end of the handle, a pressure plate is installed inside one end of the connecting seat, the pressure plate is slidably connected to the inside of the connecting seat through two compression springs, the pressure plate is an "L"-shaped structure, the top of one end of the pressure plate extends to the outside of the connecting seat, the other end of the pressure plate is vertically connected to a limiting rod, the limiting rod extends to the outside of the connecting seat and engages with the inside of the limiting groove, and the limiting rod is slidably connected to the connecting seat through the pressure plate.

[0011] Specifically, the lifting mechanism includes a handle, the outer wall of the pot body is welded with a handle, the handle is a "concave" shaped structure, and a heat insulation sleeve is installed on the handle.

[0012] Specifically, a rubber block is rotatably connected to the outer side of the heat insulation sleeve. The rubber block is a trapezoidal structure, and one side of the rubber block is provided with a plurality of equidistantly distributed tooth grooves.

[0013] Specifically, the protection mechanism includes a power module, a power module is installed inside the handle, a display module is installed at the end of the handle, a lighting assembly is installed at the bottom of the end of the handle, a temperature sensor is installed inside the top block, and one end of the temperature sensor extends to the outside of the top block and contacts the screw.

[0014] A method for preparing a double-concave composite bottom oil-accumulating stainless steel threaded pot comprises the following steps:

[0015] S1: First, high-quality aluminum is selected as the main material of the pot body. Advanced etching technology is used to finely etch the bottom surface of the pot according to the predetermined spiral pattern.

[0016] S2: Then, according to the predetermined thickness of the pot bottom, a composite bottom aluminum sheet with a specific thickness is formed through precise machining or casting technology. On the basis of the composite bottom aluminum sheet, the upper and lower surfaces of the aluminum sheet are molded into a double-sided concave shape through molding or stamping technology, and a flat stainless steel sheet is brazed under the aluminum sheet. At this time, the steel sheet is deformed and concave to adapt to the curvature of the aluminum sheet.

[0017] S3: Then, the steel-aluminum composite bottom sheet is brazed to the bottom of the aluminum pot body, and the bottom of the aluminum pot is deformed by force, and the bottom of the pot bulges downward.

[0018] S4: After completing the above steps, perform necessary surface treatments such as polishing and coating to improve the durability and aesthetics of the cookware.

[0019] S5: Finally, assemble components such as the handle, pot lid, and lid handle into a complete set of cookware.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) For the double-inwardly concave composite bottom oil-gathering stainless steel threaded pot and its preparation method of the present invention, due to the magnetic conductivity characteristic of the steel sheet, the steel-aluminum composite bottom sheet at the bottom of the product can ensure the normal use of this product on the induction cooker. The inwardly concave shape of the steel sheet can prevent the magnetic conductive composite bottom from bulging outward during the subsequent shaping process, which may affect the contact area between the bottom of the pot and the induction cooker, resulting in unstable placement of the appliance. Through the spiral etching texture treatment of the pot body sheet, the grease flows along the spiral texture grooves and is affected by the convex arc formed by the brazing of the bottom of the pot on the steel-aluminum composite bottom sheet, gathering towards the center of the bottom of the pot, achieving a dual oil-gathering effect.

[0022] (2) For the double-inwardly concave composite bottom oil-gathering stainless steel threaded pot and its preparation method of the present invention, through the cooperation of the holding mechanism and the limiting mechanism, it is convenient to hold and operate the cooking mechanism, and at the same time, it is convenient for the holding mechanism and the cooking mechanism to be quickly disassembled and assembled.

[0023] (3) For the double-inwardly concave composite bottom oil-gathering stainless steel threaded pot and its preparation method of the present invention, through the installation of the lifting mechanism, it is convenient to lift the other end when holding the cooking mechanism, playing a labor-saving role. At the same time, it can also facilitate the cooking mechanism to be vertically leaned against the wall for temporary placement.

[0024] (4) For the double-inwardly concave composite bottom oil-gathering stainless steel threaded pot and its preparation method of the present invention, through the installation of the protection mechanism, it is beneficial to monitor the temperature and time during cooking well, making the cooking effect of the dishes better, and it can also provide temporary lighting in special environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 It is a schematic structural diagram of the overall structure of a preferred embodiment provided by the present invention;

[0027] Figure 2 It is a schematic structural diagram of the composite bottom heat-conducting aluminum sheet of the present invention;

[0028] Figure 3 It is a schematic structural diagram of the spiral texture grooves at the bottom of the pot of the present invention;

[0029] Figure 4 It is a schematic structural diagram of the overall connection structure between the pot body and the handle of the present invention;

[0030] Figure 5 It is a schematic structural diagram of the connection structure between the composite bottom heat-conducting aluminum sheet and the pot body of the present invention;

[0031] Figure 6 Schematic diagram of the connection structure between the inner steel and outer aluminum composite sheet and the pot body of the present invention;

[0032] Figure 7 Schematic diagram of the connection structure between the screw and the connecting seat of the present invention;

[0033] Figure 8 Schematic diagram of the connection structure between the top block and the handle of the present invention;

[0034] Figure 9 Schematic diagram of the connection structure between the handle and the connecting seat of the present invention;

[0035] Figure 10 Schematic diagram of the connection structure between the limiting rod and the pressing plate of the present invention;

[0036] Figure 11 Schematic diagram of the connection structure between the rubber block and the heat insulation sleeve of the present invention.

[0037] In the figure: 1, cooking mechanism; 101, pot body; 102, inner steel and outer aluminum composite sheet; 103, spiral texture groove; 104, bottom - double - layer heat - conducting aluminum sheet; 105, bottom - double - layer magnetic - conducting stainless steel sheet; 2, holding mechanism; 201, connecting seat; 202, handle; 203, rubber pad; 204, screw; 205, thread groove; 206, top block; 207, resisting spring; 3, limiting mechanism; 301, limiting rod; 302, limiting groove; 303, pressing plate; 304, compression spring; 4, lifting mechanism; 401, rubber block; 402, heat insulation sleeve; 403, tooth groove; 404, handle; 5, protection mechanism; 501, display module; 502, power module; 503, lighting component; 504, temperature sensor. Detailed implementation manners

[0038] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0039] As Figure 1 , Figure 4 , Figure 6 , Figure 8 and Figure 9 shown, a double - concave bottom oil - gathering stainless - steel threaded pot of the present invention includes a cooking mechanism 1, a holding mechanism 2 is installed on the cooking mechanism 1, a limiting mechanism 3 is installed on the holding mechanism 2, a lifting mechanism 4 is installed on the cooking mechanism 1, and a protection mechanism 5 is installed on the holding mechanism 2.

[0040] Specifically, as Figure 1 , Figure 2 and Figure 3As shown, the cooking mechanism 1 includes a pot body 101, an inner steel outer aluminum composite sheet 102 is installed on the inner side wall of the pot body 101, a spiral texture groove 103 is provided on the inner bottom side of the pot body 101, a composite bottom heat-conducting aluminum sheet 104 is installed on the bottom of the pot body 101, and a composite bottom magnetic conductive stainless steel sheet 105 is installed on the bottom of the composite bottom heat-conducting aluminum sheet 104. The composite bottom heat-conducting aluminum sheet 104 is thin in the middle and thick in the outer circle. By installing the inner steel outer aluminum composite sheet 102, the pot body 101 forms an inner The steel outer aluminum structure has excellent corrosion resistance and thermal conductivity, and the thread groove 205 in the shape of a thread ring is opened, which has excellent oil collection and prevents grease from dissipating heat. It also has excellent thermal conductivity, ensuring uniformity and energy saving in cooking. At the same time, the double concave design of the composite bottom heat-conducting aluminum sheet 104 not only has the effect of collecting oil, but also can make the composite bottom magnetic stainless steel sheet 105 also have a concave structure when installed, which is conducive to the stable placement of the pot body 101 on the induction cooker and can conduct magnetism and heat well.

[0041] Specifically, Figure 1 , Figure 2 and Figure 6 As shown, the holding mechanism 2 includes a connecting seat 201, and the connecting seat 201 is installed on the outside of the pot body 101. A handle 202 is installed at one end of the connecting seat 201. The installation of the connecting seat 201 facilitates the connection of the handle 202, thereby achieving the holding of the pot body 101, which is convenient for subsequent cooking work.

[0042] Specifically, Figure 4 and Figure 6 As shown, a screw rod 204 is fixedly connected at the center of one end of the connecting seat 201, and a threaded groove 205 is provided inside one end of the handle 202. The screw rod 204 is threadedly connected to the handle 202 through the threaded groove 205. A rubber pad 203 is installed at one end of the connecting seat 201, and one end of the handle 202 is in contact with the rubber pad 203. Through the installation of the screw rod 204 and with the cooperation of the threaded groove 205, the handle 202 is detachably connected to the connecting block, which is convenient for subsequent replacement and maintenance. At the same time, it can be disassembled during cooking without interfering with dining. Through the installation of the rubber pad 203, the handle 202 is connected to the connecting seat 201 and the contact is stable and will not loosen.

[0043] Specifically, Figure 5 and Figure 6As shown, a top block 206 is installed inside the handle 202, and one end of the top block 206 is slidably connected to the inside of the handle 202 through a resistance spring 207, and the other end of the top block 206 extends to the inside of the thread groove 205 and resists the screw 204. The top block 206 is made of rubber material. Through the installation of the top block 206 and with the cooperation of the resistance spring 207, the top block 206 has elasticity, which is beneficial for the top block 206 to always maintain resistance against the screw 204 after the screw 204 is threadedly connected to the handle 202, so that the handle 202 is stably installed.

[0044] Specifically, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the limiting mechanism 3 includes a limiting groove 302, a limiting groove 302 is provided on the inner side of one end of the handle 202, a pressing plate 303 is installed inside one end of the connecting seat 201, the pressing plate 303 is slidably connected to the inside of the connecting seat 201 through two compression springs 304, the pressing plate 303 is an "L"-shaped structure, the top of one end of the pressing plate 303 extends to the outside of the connecting seat 201, and the other end of the pressing plate 303 is vertically connected to the limiting rod 301, the limiting rod 301 extends to the outside of the connecting seat 201 and engages with the inside of the limiting groove 302, the The limiting rod 301 is slidably connected to the connecting seat 201 through the pressure plate 303. Through the opening of the limiting groove 302, after the handle 202 is stably connected to the connecting seat 201, the compression spring 304 slides against the pressure plate 303, so that the pressure plate 303 drives the limiting rod 301 to be inserted into the limiting groove 302, so as to limit the handle 202 and prevent it from rotating. By pressing the pressure plate 303, the limiting rod 301 contracts and separates from the limiting groove 302, so that the handle 202 can be rotated and separated from the screw rod 204.

[0045] Specifically, Figure 1 and Figure 8 As shown, the lifting mechanism 4 includes a handle 404, and the handle 404 is welded to the outer wall of the pot body 101, and the handle 404 is a "concave" shaped structure. A heat insulating sleeve 402 is installed on the handle 404. Through the installation of the handle 404, it is convenient to pick up the pot body 101 through the handle 202, and the other end of the pot body 101 can be lifted by holding the handle 404, which is convenient for stable holding of the pot body 101 and plays a labor-saving role. Through the installation of the heat insulating sleeve 402, it plays a role of heat insulation and scalding prevention.

[0046] Specifically, Figure 8As shown, a rubber block 401 is rotatably connected to the outer side of the heat insulation sleeve 402. The rubber block 401 has a trapezoidal structure. A plurality of equally spaced tooth grooves 403 are provided on one side of the rubber block 401. Through the rotational connection of the rubber block 401, when the pot body 101 is placed vertically, the rubber block 401 abuts against the tabletop and the handle 202 abuts against the wall, realizing the vertical temporary placement of the pot body 101. Through the opening of the tooth grooves 403, the function of increasing friction and preventing slipping is achieved.

[0047] Specifically, as Figure 4 , Figure 5 and Figure 6 shown, the protection mechanism 5 includes a power supply module 502. The power supply module 502 is installed inside the handle 202. A display module 501 is installed at the end of the handle 202. A lighting component 503 is installed at the bottom of the end of the handle 202. A temperature sensor 504 is installed inside the top block 206. One end of the temperature sensor 504 extends to the outside of the top block 206 and abuts against the screw 204. Through the installation of the power supply module 502, it is beneficial to supply power to the display module 501, the lighting component 503, and the temperature sensor 504. Through the installation of the lighting component 503, it is convenient to carry out lighting work in special environments. During cooking, through the operation of the temperature sensor 504, the temperature transmitted by the screw 204 is monitored and displayed on the display module 501, facilitating a good control of the temperature during use.

[0048] A preparation method for a double-inwardly concave composite-bottom oil-gathering stainless steel threaded pot includes the following steps:

[0049] S1: First, high-quality aluminum is selected as the main material for the pot body. On the inner bottom surface of the pot, advanced etching technology is used to perform fine etching according to a predetermined spiral pattern.

[0050] S2: Then, according to the predetermined bottom thickness of the pot, a composite-bottom aluminum sheet with a specific thickness is formed through precise machining or casting processes. On the basis of the composite-bottom aluminum sheet, through molding or stamping technology, the upper and lower surfaces of the aluminum sheet are shaped into a double-inwardly concave shape, and a flat stainless steel sheet is brazed below the aluminum sheet. At this time, the steel sheet deforms and concaves inward to adapt to the curvature of the aluminum sheet.

[0051] S3: Then, the steel-aluminum composite bottom sheet is brazed below the aluminum pot body, and the bottom of the aluminum pot deforms under force, and the bottom of the pot bulges downward.

[0052] S4: After completing the above steps, necessary surface treatments such as polishing and coating are carried out to improve the durability and aesthetics of the cookware.

[0053] S5: Finally, components such as the handle, the pot lid, and the lid handle are assembled into a complete set of cookware.

[0054] When the present invention is in use, first, through the installation of the inner steel and outer aluminum composite sheet 102, the pot body 101 forms an inner steel and outer aluminum structure, which has good corrosion resistance and thermal conductivity. And through the opening of the spiral texture grooves 103 in the shape of a thread ring, it has good oil gathering property, prevents the dissipation of grease, and also has good thermal conductivity, ensuring the uniformity and energy saving of cooking. At the same time, through the double inner concave design of the bottom composite heat-conducting aluminum sheet 104, it not only plays the role of oil gathering, but also enables the bottom magnetic conductive stainless steel sheet 105 to be in an inner concave structure when installed, which is conducive to the stable placement of the pot body 101 on the induction cooker and can conduct magnetic heat well. Through the installation of the connecting seat 201, it is conducive to connecting the handle 202, so as to realize the holding of the pot body 101 and facilitate the subsequent cooking work. Through the installation of the screw 204, with the cooperation of the thread groove 205, the handle 202 is detachably connected to the connecting block, which is convenient for subsequent replacement and maintenance. At the same time, it can be disassembled during cooking without interfering with dining. Through the installation of the rubber pad 203, the handle 202 is in stable contact with the connecting seat 201 after connection and will not loosen. Through the installation of the top block 206, with the cooperation of the abutting spring 207, the top block 206 has elasticity, which is conducive to the top block 206 always keeping in contact with the screw 204 after the screw 204 is threadedly connected to the handle 202, making the installation of the handle 202 stable. Through the opening of the limiting groove 302, after the handle 202 is stably connected to the connecting seat 201, the compression spring 304 abuts against the sliding of the pressing plate 303, so that the pressing plate 303 drives the limiting rod 301 to insert into the limiting groove 302 to realize the limitation of the handle 202 and prevent it from rotating. By pressing the pressing plate 303, the limiting rod 301 contracts and separates from the limiting groove 302, which is convenient for the handle 202 to rotate and separate from the screw 204. Through the installation of the handle 404, when the pot body 101 is lifted through the handle 202, the other end of the pot body 101 can be lifted by holding the handle 404, which is convenient for the stable taking of the pot body 101 and plays a role in saving effort. Through the installation of the heat insulation sleeve 402, it plays the role of heat insulation and preventing scalding. Through the rotational connection of the rubber block 401, when the pot body 101 is placed vertically, the rubber block 401 abuts against the tabletop and the handle 202 abuts against the wall, realizing the temporary vertical placement of the pot body 101. Through the opening of the tooth groove 403, it plays the role of increasing friction and preventing slipping. Through the installation of the power supply module 502, it is conducive to supplying power to the display module 501, the lighting component 503, and the temperature sensor 504. Through the installation of the lighting component 503, it is convenient for lighting work in special environments. During cooking, through the operation of the temperature sensor 504, the temperature transmitted by the screw 204 is monitored and displayed on the display module 501, which is convenient for well controlling the temperature during use.

[0055] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0056] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double concave bottom oil-collecting stainless steel threaded pot, characterized in that: The cooking mechanism (1) comprises a holding mechanism (2) installed on the cooking mechanism (1), a limiting mechanism (3) installed on the holding mechanism (2), a lifting mechanism (4) installed on the cooking mechanism (1), and a protective mechanism (5) installed on the holding mechanism (2); The cooking mechanism (1) comprises a pot body (101), the inner side wall of the pot body (101) is provided with an inner steel and outer aluminum composite sheet (102), the inner bottom side of the pot body (101) is provided with a spiral texture groove (103), the bottom of the pot body (101) is provided with a composite bottom heat-conducting aluminum sheet (104), the bottom of the composite bottom heat-conducting aluminum sheet (104) is provided with a composite bottom magnetic conductive stainless steel sheet (105), and the composite bottom heat-conducting aluminum sheet (104) is thin in the middle and thick in the outer circle.

2. The double-concave, double-bottomed, oil-accumulating stainless steel threaded pot according to claim 1, characterized in that: The holding mechanism (2) comprises a connecting seat (201), the connecting seat (201) is installed on the outside of the pot body (101), and a handle (202) is installed at one end of the connecting seat (201).

3. The double-concave, double-bottomed, oil-accumulating stainless steel threaded pot according to claim 2, characterized in that: A screw rod (204) is fixedly connected at the center of one end of the connection seat (201), a thread groove (205) is provided inside one end of the handle (202), the screw rod (204) is threadedly connected to the handle (202) via the thread groove (205), a rubber pad (203) is installed at one end of the connection seat (201), and one end of the handle (202) is in contact with the rubber pad (203).

4. The double-concave composite bottom oil-collecting stainless steel threaded pot according to claim 3, characterized in that: A top block (206) is installed inside the handle (202), one end of the top block (206) is slidably connected to the inside of the handle (202) via a resisting spring (207), and the other end of the top block (206) extends to the inside of the threaded groove (205) to resist the screw rod (204), and the top block (206) is made of rubber material.

5. The double-concave, double-bottomed, oil-accumulating stainless steel threaded pot according to claim 4, characterized in that: The limiting mechanism (3) comprises a limiting groove (302), the limiting groove (302) is provided on the inner side of one end of the handle (202), a pressing plate (303) is installed inside one end of the connecting seat (201), the pressing plate (303) is slidably connected to the inside of the connecting seat (201) through two compression springs (304), the pressing plate (303) is an "L"-shaped structure, the top of one end of the pressing plate (303) extends to the outside of the connecting seat (201), the other end of the pressing plate (303) is vertically connected to the limiting rod (301), the limiting rod (301) extends to the outside of the connecting seat (201) and engages with the inside of the limiting groove (302), and the limiting rod (301) is slidably connected to the connecting seat (201) through the pressing plate (303).

6. The double-concave, double-bottomed, oil-accumulating stainless steel threaded pot according to claim 1, characterized in that: The lifting mechanism (4) comprises a handle (404), the outer wall of the pot body (101) is welded with the handle (404), the handle (404) is a "concave"-shaped structure, and a heat insulation sleeve (402) is installed on the handle (404).

7. The double-concave, double-bottomed, oil-accumulating stainless steel threaded pot according to claim 6, characterized in that: A rubber block (401) is rotatably connected to the outside of the heat insulation sleeve (402); the rubber block (401) is a trapezoidal structure; one side of the rubber block (401) is provided with a plurality of tooth grooves (403) distributed at equal distances.

8. The double-concave, double-bottomed, oil-accumulating stainless steel threaded pot according to claim 4, characterized in that: The protection mechanism (5) comprises a power module (502), the power module (502) is installed inside the handle (202), a display module (501) is installed at the end of the handle (202), a lighting assembly (503) is installed at the bottom of the end of the handle (202), a temperature sensor (504) is installed inside the top block (206), and one end of the temperature sensor (504) extends to the outside of the top block (206) and contacts the screw rod (204).

9. The method for preparing a double-concave composite bottom oil-accumulating stainless steel threaded pot according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, high-quality aluminum is selected as the main material of the pot body. Advanced etching technology is used to finely etch the bottom surface of the pot according to the predetermined spiral pattern. S2: Then, according to the predetermined thickness of the pot bottom, a composite bottom aluminum sheet with a specific thickness is formed through precise machining or casting technology. On the basis of the composite bottom aluminum sheet, the upper and lower surfaces of the aluminum sheet are molded into a double-sided concave shape through molding or stamping technology, and a flat stainless steel sheet is brazed under the aluminum sheet. At this time, the steel sheet is deformed and concave to adapt to the curvature of the aluminum sheet. S3: Then, the steel-aluminum composite bottom sheet is brazed to the bottom of the aluminum pot body, and the bottom of the aluminum pot is deformed by force, and the bottom of the pot bulges downward. S4: After completing the above steps, perform necessary surface treatments such as polishing and coating to improve the durability and aesthetics of the cookware. S5: Finally, assemble the handle, lid, lid lift and other parts into a complete set of pots.

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