Wear-resistant non-stick cast iron pan and manufacturing process thereof

Abstract

The present invention discloses a wear-resistant non-stick cast iron pot and its manufacturing process, which relates to the field of kitchen utensils, including a pot body, a pot cover provided on the top of the pot body, and a handle fixedly installed on the top of the pot cover; a sealing groove is provided on the inner wall of the top of the pot cover, a sealing convex ring is inserted into the sealing groove, connecting pieces are provided on the inner wall of the side of the pot cover at equal intervals, and the connecting pieces are conveniently connected between the pot body and the pot cover by interlacing with the bottom of the outer edge; positioning components are provided at equal angles on the side of the outer edge, and the positioning components enhance the connection stability between the pot body and the pot cover by locking the pot cover in opposite directions. The wear-resistant non-stick cast iron pot and its manufacturing process can conveniently and firmly connect and fix the pot body and the pot cover during use, avoid contact between the hands and the hot pot and the pot cover during operation, reduce damage to the hands, and at the same time, strengthen the sealing treatment after the pot body and the pot cover are closed to prevent soup from overflowing during cooking.

Description

Technical Field

[0001] The invention relates to the technical field of kitchenware, in particular to a wear-resistant non-stick cast iron pan and a manufacturing process thereof. Background Art

[0002] In the field of kitchen utensils, cast iron pans are highly favored by consumers due to their excellent heat storage capacity and uniform heating effect. In daily cooking, the phenomenon of sticking to the pan not only causes food to burn and affects the taste, but also increases the difficulty of cleaning, consuming a lot of time and energy. With the increase in the number of uses, the surface of traditional cast iron pans is prone to wear and tear, resulting in a shortened service life. Therefore, non-stick coatings are applied to the pan body.

[0003] In order to solve the above defects, the prior art (Chinese patent publication number CN222357513U, publication date 2025-01-17) provides a non-stick pan with good operating performance, which is provided with a snap-fit mechanism, a non-stick cast iron pot body, a semi-U-shaped mounting plate, a hinge shaft, a snap-fit buckle, an oblique opening at the end of the pot body, a pot lid, and a clamping block. The outer wall of the non-stick cast iron pot body is fixed with multiple groups of semi-U-shaped mounting plates, a hinge shaft is fixed between two groups of semi-U-shaped mounting plates, and the outer wall of the hinge shaft is connected with a snap-fit buckle, and two groups of clamping blocks are fixed on the top of the pot lid. When the pot lid covers the non-stick cast iron pot body, the two groups of snap-fit buckles are manually rotated so that the two groups of snap-fit buckles are respectively clamped to the outside of the two groups of clamping blocks, thereby fixing the pot lid on the non-stick cast iron pot body, thereby achieving the effect of fixing the pot lid;

[0004] The prior art (Chinese patent with publication number CN219020925U and publication date 2023-05-16) is a non-stick pan with good operating performance. A heat-resistant rubber ring is provided at the bottom of an airtight lid. The heat-resistant rubber ring is in sealing contact with the oblique opening of the pot body at the upper end of the inner coating of the non-stick pan, and is in fastening contact with the arc opening through a snap-fit buckle of a fastening device, so as to realize the sealed installation of the airtight lid. A non-stick pan vent head is provided at the top of the airtight lid. During the heating process of the entire non-stick cast iron pot body, the internal high-pressure gas can discharge part of the gas while pressing the food, so as to prevent the pot body from exploding. The above-mentioned operation of high-pressure stewing food is difficult to achieve with ordinary cast iron pots and non-stick pots, thereby improving the operability of the entire non-stick pan for food preparation and solving the problem that the internal volume of the traditional non-stick pan is small and it is inconvenient for users to hold and operate it.

[0005] The above solution achieves the effect of non-stick and wear resistance by providing a non-stick coating, thereby increasing the service life of the pot, and provides a connecting structure between the pot body and the pot lid to fix the pot lid on the non-stick cast iron pot body, thereby achieving the effect of fixing the pot lid. However, in actual operation, when the pot lid is connected to the pot body, a simple docking and locking method is used, and the user needs to directly contact the pot lid and the pot body. The temperature of the pot and the pot lid containing boiling hot ingredients is relatively high, which can easily cause injury to the hands when opening the lid. It is necessary to wrap the lid with a towel to open and close the lid, which is relatively inconvenient. At the same time, after the pot body and the pot lid are closed, the sealing of the connection between the pot body and the pot lid is insufficient, which makes it easy for the soup to overflow. Summary of the Invention

[0006] The purpose of the present invention is to provide a wear-resistant non-stick cast iron pan and its manufacturing process, so as to solve the problem of the existing wear-resistant non-stick cast iron pan proposed in the above background technology. During use, the pot body and the pot lid need to be directly touched by the hands when they are connected. The temperature of the pot and the pot lid containing boiling hot ingredients is relatively high, which can easily cause injury to the hands when the lid is opened. At the same time, the connection between the pot body and the pot lid is not sealed enough, which makes the soup easily overflow.

[0007] To achieve the above object, the present invention provides the following technical solution: a wear-resistant non-stick cast iron pan, comprising a pan body, a pan lid provided on the top of the pan body, hanging ears and handles installed on the left and right sides of the pan body, a handle fixedly installed on the top of the pan lid, and a ventilation hole reserved on the pan lid;

[0008] A sealing groove is provided on the inner wall of the top of the pot cover, a sealing convex ring is inserted into the sealing groove, and the sealing convex ring is fixed at the top edge of the pot body;

[0009] The outer side of the top of the pot body is integrally provided with an outer edge, the pot cover covers the outside of the outer edge, and connecting pieces are evenly spaced on the inner wall of the side of the pot cover, and the connecting pieces are interlaced with the bottom of the outer edge to conveniently connect the pot body and the pot cover;

[0010] Positioning components are provided at equal angles on the side surfaces of the outer edge, and the positioning components enhance the connection stability between the pot body and the pot cover by locking the pot cover in opposite directions.

[0011] Furthermore, an insulating cavity is opened in the inner wall of the side of the pot cover, and a pressing rod is slidably connected through the middle of the handle on the top of the pot cover. The pressing rod is set as a "T" shape structure, and a first spring is installed between the top bottom of the pressing rod and the top of the handle.

[0012] Furthermore, the bottom of the pressing rod is set to be hollow, and the bottom of the pressing rod is sleeved on the outside of the rotating rod, and the rotating rod rotates on the top of the pot cover. A protrusion is fixed on the inner wall of the bottom of the pressing rod, and the protrusion is slidably connected to the spiral groove. The spiral groove is opened on the outside of the rotating rod, and the rotating rod forms a reciprocating rotation structure through the protrusion and the spiral groove.

[0013] Furthermore, the connecting part includes a pull rope wrapped at an equal angle around the outside of the bottom of the rotating rod, the end of the pull rope is connected to the support plate, the support plate is connected to the transverse groove through a second spring, the transverse groove is opened at an equal angle on the inner wall of the side of the pot cover, and the outer top of the support plate is staggered and in conflict with the bottom of the outer edge.

[0014] Furthermore, the positioning assembly includes a moving block that is slidably connected to the bottom of the outer edge at an equal angle. The moving block is slidably connected to the bottom of the outer edge through a third spring. The bottom of the moving block is set to be a triangle, and the hypotenuse of the triangle is set opposite to the support plate. The moving block forms a vertical sliding structure through the support plate and the third spring.

[0015] Furthermore, a round rod is provided on the top of the movable block, the outer end of the round rod is slidably connected to the guide groove, the guide groove is opened on the plug block, the plug block is slidably connected to the side of the outer edge at equal angles, and the guide groove is set to an inclined structure with the outside lower and the inside higher.

[0016] Furthermore, the outside of the insert block is engaged with the card slot, and the card slot is opened at equal angles on the inner wall of the pot cover. The pot body forms a stable connection structure with the pot cover through the insert block and the card slot.

[0017] Furthermore, an airbag is installed inside the sealing groove, the sealing convex ring is in squeeze contact with the airbag, the airbag is connected to the inside of the sealing bag through a connecting tube, and the sealing bag is arranged on the contact surface between the bottom of the pot cover and the pot body.

[0018] Furthermore, a groove is provided at the bottom of the handle, a screw is connected through the groove, a first slider is threadedly connected to the screw, a support rod is hinged at the bottom of the first slider, a second slider is hinged at the bottom of the support rod, and the second slider is slidably connected to a fixed frame installed on the side of the handle, and the pot body and the handle can conveniently adjust the length of the support arm through the angle of the support rod.

[0019] A manufacturing process for a wear-resistant non-stick cast iron pan, the specific steps are as follows:

[0020] S1. Material selection: Raw iron ore is used as the basic raw material to improve the hardness and corrosion resistance of cast iron pots;

[0021] S2. Casting: Using gravity casting process, the molten iron is precisely poured into the customized mold. During the casting process, it is ensured that the molten iron evenly fills the mold to form a dense internal structure, thereby improving the strength and wear resistance of the cast iron pot;

[0022] S3. Surface treatment: Finely polish the cast pot body to remove burrs and impurities on the surface to make it smooth and flat. Then, use nano-ceramic coating technology to evenly spray nano-ceramic material on the surface of the pot body. Finally, through high-temperature curing treatment, the nano-ceramic coating is firmly bonded to the surface of the pot body to ensure the stability and durability of the coating.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The wear-resistant non-stick cast iron pan and its manufacturing process can conveniently and firmly connect and fix the pan body and the lid during use, avoiding contact between the hands and the hot pan and the lid during operation, thereby reducing hand injuries. At the same time, the pan body and the lid can be sealed after closing to prevent soup from spilling during cooking.

[0025] Furthermore, after pressing the pressing rod on the handle, the pressing rod moves downward to compress the first spring, and the pressing rod moves downward to drive the protrusion to slide in the spiral groove, thereby driving the rotating rod to rotate. After the rotating rod rotates, it pulls the pull rope, and the pull rope drives the supporting plate to compress the second spring and retract it into the transverse groove, thereby facilitating the closing of the pot lid and the pot body. After closing, the pressing rod is released, and the first spring drives the pressing rod to move upward and reset, thereby causing the rotating rod to rotate, thereby loosening the pull rope, and the second spring pushes the supporting plate to extend and intersect with the outer edge of the pot body, thereby conveniently connecting the pot body and the pot lid;

[0026] Furthermore, when the support plate contacts the bottom of the outer edge, it squeezes the moving block. After the moving block is pressed, it squeezes the third spring and moves upward. After the moving block moves upward, it drives the round rod to move upward synchronously. The round rod slides in the guide groove, and then drives the insert block to extend through the guide groove. After the insert block extends, it engages with the groove on the side of the pot cover, thereby achieving a two-way locking of the pot body to the pot cover, making the connection between the pot body and the pot cover more stable.

[0027] Furthermore, when the sealing convex ring is plugged into the sealing groove, the air bag is squeezed, and the air bag is compressed to push the gas into the sealing bag. After the sealing bag expands, it strengthens the sealing treatment of the joint surface between the pot body and the pot lid, preventing the soup from overflowing during cooking.

[0028] Furthermore, when the weight of the food placed inside the pot body is different, the range of the support arm at the bottom of the handle is adjusted, and the screw on the handle is rotated, thereby driving the first slider to slide in the groove. After the first slider slides, it drives the support rod to rotate. After the support rod rotates, it drives the second slider to slide inside the fixed frame, thereby changing the length of the support arm at the bottom of the handle to protect the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall usage state structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the top view of the pot body and pot cover separated from each other in the present invention;

[0031] Figure 3 This is a schematic diagram of the pot body and pot cover separated from each other as viewed from above;

[0032] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0033] Figure 5 This is a schematic diagram of the front cross-section structure of the pot body and pot cover of the present invention;

[0034] Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0035] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the pot cover of the present invention;

[0036] Figure 8 This is a schematic diagram of the explosion structure inside the pot cover of the present invention;

[0037] Figure 9 For the present invention Figure 8 The enlarged structural diagram at C in the middle;

[0038] Figure 10 This is a schematic diagram of the front cross-section structure of the handle and the pot lid of the present invention;

[0039] Figure 11 This is a schematic diagram of the exploded structure of the handle and pot lid of the present invention.

[0040] In the figure: 1. pot body; 2. handle; 3. hanging ear; 4. pot lid; 5. handle; 6. outer edge; 7. sealing convex ring; 8. sealing groove; 9. cavity; 10. pressing rod; 11. first spring; 12. rotating rod; 13. protrusion; 14. spiral groove; 15. pull rope; 16. supporting plate; 17. transverse groove; 18. second spring; 19. moving block; 20. third spring; 21. round rod; 22. guide groove; 23. insert block; 24. card slot; 25. air bag; 26. sealing bag; 27. groove; 28. screw; 29. first slider; 30. support rod; 31. second slider; 32. fixing frame. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1: Please refer to Figure 1 - Figure 11 The present invention provides the following technical solution: a wear-resistant non-stick cast iron pot, comprising a pot body 1, a pot cover 4 is provided on the top of the pot body 1, and hanging ears 3 and handles 2 are respectively installed on the left and right sides of the pot body 1, a handle 5 is fixedly installed on the top of the pot cover 4, and a ventilation hole is reserved on the pot cover 4. A heat-insulating cavity 9 is opened in the side inner wall of the pot cover 4, and a sealing groove 8 is opened on the top inner wall of the pot cover 4, and a sealing convex ring 7 is inserted in the sealing groove 8, and the sealing convex ring 7 is fixed at the top edge of the pot body 1. An outer edge 6 is integrally provided on the top outer side of the pot body 1, and the pot cover 4 covers the outside of the outer edge 6. Connectors are arranged at equal intervals on the inner wall of the side of the pot cover 4, and the connecting members are staggered and interfered with the bottom of the outer edge 6 to conveniently connect the pot body 1 and the pot cover 4. Positioning components are arranged at equal angles on the side of the outer edge 6, and the positioning components enhance the connection stability between the pot body 1 and the pot cover 4 by locking the pot cover 4 in the opposite direction;

[0043] When in use, the handle 5 is convenient for lifting the entire pot cover 4, and the handle 2 is convenient for holding the pot body 1. The cavity 9 on the pot cover 4 is convenient for heat insulation and can also make the overall weight of the pot cover 4 lighter. When the pot cover 4 and the pot body 1 are closed, the sealing convex ring 7 is placed in the sealing groove 8, and the pot cover 4 will cover the outer edge 6 of the pot body 1. The connecting parts on the pot cover 4 will intersect with the outer edge 6 of the pot body 1, thereby conveniently connecting the pot cover 4 and the pot body 1, and the positioning component on the pot cover 4 will also be synchronously engaged with the pot body 1, thereby improving the stability of the connection between the pot body 1 and the pot cover 4. Example

[0044] On the basis of the first embodiment, the pressing rod 10, the protrusion 13 and the spiral groove 14 are also disclosed. Figure 1 - Figure 2 and Figure 5 - Figure 11 As shown, its specific structure is as follows: a pressing rod 10 is slidably connected to the middle of the handle 5 at the top of the pot cover 4, and the pressing rod 10 is set to a "T"-shaped structure. A first spring 11 is installed between the top bottom of the pressing rod 10 and the top of the handle 5. The bottom of the pressing rod 10 is set to a hollow state, and the bottom of the pressing rod 10 is sleeved on the outside of the rotating rod 12. The rotating rod 12 rotates on the top of the pot cover 4. A protrusion 13 is fixed on the inner wall of the bottom of the pressing rod 10, and the protrusion 13 slides. The rotating rod 12 is dynamically connected to the spiral groove 14, which is opened on the outside of the rotating rod 12. The rotating rod 12 forms a reciprocating rotating structure through the protrusion 13 and the spiral groove 14. The connecting member includes a pull rope 15 wound at equal angles on the outside of the bottom of the rotating rod 12. The end of the pull rope 15 is connected to the support plate 16. The support plate 16 is connected to the transverse groove 17 through the second spring 18. The transverse groove 17 is opened at equal angles on the inner wall of the side of the pot cover 4. The outer top of the support plate 16 interlocks and conflicts with the bottom of the outer edge 6.

[0045] During use, after the finger presses the pressing rod 10 on the handle 5, the pressing rod 10 moves downward and compresses the first spring 11. After the pressing rod 10 moves downward, it drives the protrusion 13 to slide in the spiral groove 14, thereby driving the rotating rod 12 to rotate. After the rotating rod 12 rotates, it pulls the pull rope 15, and the pull rope 15 drives the supporting plate 16 to compress the second spring 18 and retract it into the transverse groove 17, thereby facilitating the closing of the pot cover 4 and the pot body 1. After closing, release the pressing rod 10, the first spring 11 drives the pressing rod 10 to move up and reset, thereby causing the rotating rod 12 to rotate, thereby loosening the pull rope 15, and the second spring 18 pushes the supporting plate 16 to extend and intersect with the outer edge 6 of the outside of the pot body 1, thereby conveniently connecting the pot body 1 and the pot cover 4. Example

[0046] On the basis of the second embodiment, the movable block 19, the round rod 21, the guide groove 22, the insert block 23 and the card slot 24 are also disclosed. Figure 6 - Figure 7As shown, its specific structure is as follows: the positioning assembly includes a moving block 19 that is slidably connected to the bottom of the outer edge 6 at an equal angle, and the moving block 19 is slidably connected to the bottom of the outer edge 6 through a third spring 20. The bottom of the moving block 19 is set to a triangle, and the hypotenuse of the triangle is arranged opposite to the support plate 16. The moving block 19 forms a vertical sliding structure through the support plate 16 and the third spring 20. A round rod 21 is provided on the top of the moving block 19. The outer end of the round rod 21 is slidably connected to the guide groove 22. The guide groove 22 is opened on the insert block 23. The insert block 23 is slidably connected to the side of the outer edge 6 at an equal angle. The guide groove 22 is set to an inclined structure with a low outside and a high inside. The outer side of the insert block 23 is engaged with the card slot 24. The card slot 24 is opened at an equal angle on the inner wall of the pot cover 4. The pot body 1 forms a stable connection structure with the pot cover 4 through the insert block 23 and the card slot 24.

[0047] During use, when the support plate 16 contacts the bottom of the outer edge 6, the moving block 19 will be squeezed. After the moving block 19 is compressed, it squeezes the third spring 20 and moves upward. After the moving block 19 moves upward, it drives the round rod 21 to move upward synchronously. The round rod 21 will slide in the guide groove 22, and then drive the insertion block 23 to extend through the guide groove 22. After the insertion block 23 is extended, it engages with the slot 24 on the side of the pot cover 4, thereby performing a two-way locking of the pot body 1 to the pot cover 4, making the connection between the pot body 1 and the pot cover 4 more stable.

[0048] Please refer to Figure 5 - Figure 8 and Figure 10 - Figure 11 As shown, an airbag 25 is installed inside the sealing groove 8, and the sealing convex ring 7 is in squeeze contact with the airbag 25. The airbag 25 is connected to the inside of the sealing bag 26 through a connecting pipe. The sealing bag 26 is provided on the contact surface between the bottom of the pot cover 4 and the pot body 1;

[0049] During use, when the sealing convex ring 7 is plugged into the sealing groove 8, the airbag 25 will be squeezed. The airbag 25 will be pressurized to release the gas into the sealing bag 26. After the sealing bag 26 expands, the joint surface between the pot body 1 and the pot cover 4 is strengthened and sealed to prevent the soup from overflowing during cooking. Example

[0050] On the basis of the third embodiment, a support rod 30 is also disclosed. Please refer to Figure 2 - Figure 5 As shown, its specific structure is as follows: a groove 27 is formed at the bottom of the handle 2, a screw 28 is connected through the groove 27, a first slider 29 is threadedly connected to the screw 28, a support rod 30 is hinged at the bottom of the first slider 29, a second slider 31 is hinged at the bottom of the support rod 30, and the second slider 31 is slidably connected to a fixed frame 32 installed on the side of the handle 2. The pot body 1 and the handle 2 can conveniently adjust the length of the support arm through the angle of the support rod 30;

[0051] During use, when the weight of the food placed inside the pot body 1 is different, the range of the support arm at the bottom of the handle 2 is adjusted, and the screw 28 on the handle 2 is rotated, thereby driving the first slider 29 to slide in the groove 27. After the first slider 29 slides, it drives the support rod 30 to rotate. After the support rod 30 rotates, it drives the second slider 31 to slide inside the fixed frame 32, thereby changing the length of the support arm at the bottom of the handle 2. The greater the weight, the longer the distance the support rod 30 slides at the bottom of the handle 2, thereby protecting the handle 2 and preventing the handle from directly bearing the weight of the pot body 1 and the food and being easily damaged.

[0052] A manufacturing process for a wear-resistant non-stick cast iron pan, the specific steps are as follows:

[0053] S1. Material selection: Raw iron ore is used as the basic raw material to improve the hardness and corrosion resistance of cast iron pots;

[0054] S2. Casting: Using gravity casting process, the molten iron is precisely poured into the customized mold. During the casting process, it is ensured that the molten iron evenly fills the mold to form a dense internal structure, thereby improving the strength and wear resistance of the cast iron pot;

[0055] S3. Surface treatment: The cast pot body 1 is finely polished to remove burrs and impurities on the surface to make it smooth and flat. Then, nano-ceramic coating technology is used to evenly spray the nano-ceramic material on the surface of the pot body 1 to improve the wear resistance of the pot body 1. Finally, high-temperature curing treatment is performed to firmly bond the nano-ceramic coating to the surface of the pot body 1 to ensure the stability and durability of the coating.

[0056] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wear-resistant non-stick cast iron pan, comprising a pan body (1), a pan cover (4) provided on the top of the pan body (1), hanging ears (3) and a handle (2) respectively installed on the left and right sides of the pan body (1), a handle (5) fixedly installed on the top of the pan cover (4), and a ventilation hole reserved on the pan cover (4); Its characteristics are: A sealing groove (8) is provided on the inner wall of the top of the pot cover (4), a sealing convex ring (7) is inserted into the sealing groove (8), and the sealing convex ring (7) is fixed to the top edge of the pot body (1); The outer side of the top of the pot body (1) is integrally provided with an outer edge (6), the pot cover (4) covers the outside of the outer edge (6), and connecting pieces are provided at equal intervals on the inner wall of the side of the pot cover (4), and the connecting pieces are interlaced with the bottom of the outer edge (6) to conveniently connect the pot body (1) and the pot cover (4); The connecting member comprises a drawstring (15) wound at an equal angle around the outside of the bottom of the rotating rod (12), the end of the drawstring (15) is connected to the support plate (16), the support plate (16) is connected to the transverse groove (17) through the second spring (18), the transverse groove (17) is opened at an equal angle on the inner wall of the side of the pot cover (4), and the outer top of the support plate (16) is staggered and abutted against the bottom of the outer edge (6); Positioning components are provided at equal angles on the side surfaces of the outer edge (6), and the positioning components enhance the connection stability between the pot body (1) and the pot cover (4) by locking the pot cover (4) in opposite directions; The positioning assembly includes a moving block (19) that is slidably connected to the bottom of the outer edge (6) at an equal angle, and the moving block (19) is slidably connected to the bottom of the outer edge (6) through a third spring (20). The bottom of the moving block (19) is set in a triangle, and the hypotenuse of the triangle is set opposite to the support plate (16). The moving block (19) forms a vertical sliding structure through the support plate (16) and the third spring (20); A round rod (21) is provided on the top of the moving block (19), the outer end of the round rod (21) is slidably connected to the guide groove (22), the guide groove (22) is opened on the plug block (23), the plug block (23) is slidably connected to the side of the outer edge (6) at an equal angle, and the guide groove (22) is set as an inclined structure, with the outer side lower and the inner side higher; The outside of the insert block (23) is engaged with the card slot (24), and the card slot (24) is provided at equal angles on the inner wall of the pot cover (4). The pot body (1) forms a stable connection structure with the pot cover (4) through the insert block (23) and the card slot (24).

2. The wear-resistant non-stick cast iron pan according to claim 1, characterized in that: A heat-insulating cavity (9) is provided in the inner wall of the side of the pot cover (4), and a pressing rod (10) is slidably connected to the middle of the handle (5) at the top of the pot cover (4). The pressing rod (10) is configured as a "T"-shaped structure, and a first spring (11) is installed between the bottom of the top surface of the pressing rod (10) and the top of the handle (5).

3. The wear-resistant non-stick cast iron pan according to claim 2, characterized in that: The bottom of the pressing rod (10) is set to be in a hollow state, and the bottom of the pressing rod (10) is sleeved on the outside of the rotating rod (12). The rotating rod (12) rotates on the top of the pot cover (4). A protrusion (13) is fixed on the inner wall of the bottom of the pressing rod (10). The protrusion (13) is slidably connected to the spiral groove (14). The spiral groove (14) is opened on the outside of the rotating rod (12). The rotating rod (12) forms a reciprocating rotating structure through the protrusion (13) and the spiral groove (14).

4. The wear-resistant non-stick cast iron pan according to claim 3, characterized in that: An airbag (25) is installed inside the sealing groove (8), the sealing convex ring (7) is in squeeze contact with the airbag (25), and the airbag (25) is connected to the inside of the sealing bag (26) through a connecting pipe. The sealing bag (26) is arranged on the contact surface between the bottom of the pot cover (4) and the pot body (1).

5. The wear-resistant non-stick cast iron pan according to claim 4, characterized in that: A groove (27) is provided at the bottom of the handle (2), a screw (28) is connected through the groove (27), a first slider (29) is threadedly connected to the screw (28), a support rod (30) is hinged at the bottom of the first slider (29), a second slider (31) is hinged at the bottom of the support rod (30), and the second slider (31) is slidably connected to a fixed frame (32) installed on the side of the handle (2), and the pot body (1) and the handle (2) can conveniently adjust the length of the support arm through the angle of the support rod (30).

6. The wear-resistant non-stick cast iron pan according to claim 5, characterized in that: Also disclosed is a manufacturing process for a wear-resistant non-stick cast iron pan, the specific steps of which are as follows: S1. Material selection: Raw iron ore is used as the basic raw material to improve the hardness and corrosion resistance of cast iron pots; S2. Casting: Using gravity casting process, the molten iron is precisely poured into the customized mold. During the casting process, it is ensured that the molten iron evenly fills the mold to form a dense internal structure, thereby improving the strength and wear resistance of the cast iron pot; S3. Surface treatment: The cast pot body (1) is finely polished to remove burrs and impurities on the surface, making the surface smooth and flat. Then, nano-ceramic coating technology is used to evenly spray the nano-ceramic material on the surface of the pot body (1) to improve the wear resistance of the pot body (1). Finally, high-temperature curing treatment is performed to firmly bond the nano-ceramic coating to the surface of the pot body (1) to ensure the stability and durability of the coating.

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