A heat-insulating and scalding-proof stainless steel pot lid
The stainless steel pot lid, designed with a multi-layered composite structure and heat-insulating materials, solves the problems of easy burns and steam overflow caused by traditional stainless steel pot lids, achieving safe, airtight, and convenient use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGHAI TIANLEI KITCHEN & BATHROOM CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional stainless steel pot lids are prone to causing burns during cooking, and sudden increases in steam pressure inside the lid can easily lead to overflowing. Existing anti-scalding solutions have problems such as poor heat resistance, easy aging, and difficulty in cleaning.
The pot lid features a multi-layered composite structure, including an outer layer of 316L stainless steel with a nano-ceramic coating, a vacuum insulation layer, and an inner layer of aluminum alloy. It is combined with a heat-insulated handle and an anti-scalding button, and features a steam venting structure to facilitate steam discharge.
It effectively insulates against heat to prevent burns, enhances the sealing performance between the lid and the pot body, prevents steam burns, and improves safety and ease of cleaning.
Smart Images

Figure CN224505222U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen utensils technology, specifically to a heat-insulating and scalding-proof stainless steel pot lid. Background Technology
[0002] Stainless steel pot lids are widely used in daily life due to their durability and ease of cleaning. However, traditional stainless steel pot lids have a significant problem: the surface temperature of the lid rises rapidly during cooking, making it easy for users to be burned when lifting the lid. Existing anti-scalding solutions mostly involve adding silicone sleeves or plastic handles, but these have problems such as poor heat resistance, easy aging, and difficulty in cleaning. In addition, a sudden increase in steam pressure inside the lid can easily cause the pot to overflow, and manually releasing the steam can easily result in burns. Therefore, we propose a heat-insulating and anti-scalding stainless steel pot lid to solve the above problems. Utility Model Content
[0003] In view of the shortcomings of the prior art, this utility model provides a heat-insulating and anti-scalding stainless steel pot lid, which solves the problems mentioned in the background art.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a heat-insulating and anti-scalding stainless steel pot lid, including a pot lid body with a multi-layer composite structure, wherein the pot lid body includes an anti-scalding structure and a steam venting structure.
[0005] The pot lid body comprises, from the outside to the inside, an outer layer, a vacuum layer, a middle layer, and an inner layer.
[0006] The anti-scalding structure is detachably connected to the pot lid body.
[0007] A steam exhaust structure is provided on the pot lid body.
[0008] Furthermore, the anti-scalding structure includes a through hole, which is located at the center of the upper surface of the pot lid body. A connecting post is movably installed inside the through hole. A conical base is fixedly installed at the bottom end of the connecting post. A threaded groove is opened inside the top end of the connecting post. A bolt is threaded into the threaded groove. A handle is fixedly installed at the top end of the bolt. A heat insulation pad is fixedly installed at the bottom end of the outer wall of the handle.
[0009] Furthermore, the steam venting structure includes a steam vent hole, which is located on the upper surface of the pot lid body. An L-shaped valve core is movably connected inside the steam vent hole. A sealing gasket is fixedly installed at the bottom end of the L-shaped valve core. A connecting plate is fixedly installed on the outer wall of the middle end of the L-shaped valve core. A steam vent hole is opened on the upper surface of the connecting plate. A magnetic component one is fixedly installed on the lower surface of the connecting plate. An anti-scalding button is fixedly installed at the top end of the L-shaped valve core. A magnetic component two is fixedly installed on the upper surface of the pot lid body, directly below the magnetic component one.
[0010] Furthermore, a sealing ring is fixedly installed on the outer edge of the pot lid body, and a protruding rib is fixedly installed on the bottom edge of the pot lid body inside the sealing ring.
[0011] Furthermore, the inner side of the heat insulation pad is in contact with the outer wall of the pot lid body, and the outer wall of the conical base is in contact with the inner wall of the pot lid body.
[0012] Furthermore, the outer layer is L-shaped stainless steel with a nano-ceramic coating, the middle layer is a vacuum insulation layer, and the inner layer is an aluminum alloy with micro-capillary structures.
[0013] Furthermore, the upper surface of the sealing gasket is in contact with the inner wall of the pot lid body, and the handle and anti-scalding button are made of heat-insulating material, such as high-strength ceramic fiber composite material.
[0014] The beneficial effects of this utility model are:
[0015] 1. This heat-insulating and anti-scalding stainless steel pot lid features a handle and anti-scalding button made of heat-insulating material, providing excellent heat protection for these components. Even when the lid itself is hot, the handle and anti-scalding button remain relatively cool, making it convenient for users to handle and operate. The sealing ring and raised ribs not only enhance the seal between the lid and the pot but also insulate the edges of the lid where they contact the pot, reducing heat transfer from the edges to the lid's surface. The outer layer is made of L-grade stainless steel with a nano-ceramic coating, offering excellent high-temperature and corrosion resistance, while the middle layer is a vacuum insulation layer that effectively blocks heat transfer.
[0016] 2. This heat-insulating and anti-scalding stainless steel pot lid, through the setting of the steam venting structure, when the steam pressure inside the pot reaches a certain level, the operator presses down the anti-scalding button, causing the L-shaped valve core to move the connecting plate and sealing gasket downwards, so that the sealing gasket is away from the inner wall of the pot lid body. The magnetic component one and magnetic component two at the bottom of the connecting plate are magnetically attracted to fix it, and then the steam inside the pot lid body is discharged through the steam vent and steam passage. This can prevent the operator from being scalded by steam when pressing the exhaust valve for a long time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0020] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0021] Figure 4 This is a partial sectional view of the anti-scalding structure of this utility model;
[0022] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.
[0023] Explanation of reference numerals in the attached diagram: 1. Lid body; 11. Outer layer; 12. Inner layer; 13. Vacuum layer; 14. Middle layer; 2. Anti-scalding structure; 21. Through hole; 22. Connecting post; 23. Conical base; 24. Threaded groove; 25. Bolt; 26. Handle; 27. Heat insulation pad; 3. Exhaust structure; 31. Exhaust hole; 32. L-shaped valve core; 33. Sealing gasket; 34. Connecting plate; 35. Steam vent; 36. Magnetic component one; 37. Anti-scalding button; 38. Magnetic component two; 4. Sealing ring; 5. Protruding rib. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0025] Please see Figures 1-5 A heat-insulating and anti-scalding stainless steel pot lid includes a pot lid body 1 with a multi-layer composite structure, the pot lid body 1 including an anti-scalding structure 2 and a steam venting structure 3.
[0026] The pot lid body 1 includes, from the outside to the inside, an outer layer 11, a vacuum layer 13, a middle layer 14, and an inner layer 12.
[0027] Anti-scalding structure 2, which is detachably connected to the pot lid body 1;
[0028] The steam exhaust structure 3 is installed on the pot lid body 1.
[0029] Reference Figure 1 , Figure 3 , Figure 4 As shown, the anti-scalding structure 2 includes a through hole 21, which is located at the center of the upper surface of the pot lid body 1. A connecting post 22 is movably installed inside the through hole 21. A conical base 23 is fixedly installed at the bottom end of the connecting post 22. A threaded groove 24 is opened inside the top end of the connecting post 22. A bolt 25 is threaded inside the threaded groove 24. A handle 26 is fixedly installed at the top end of the bolt 25. A heat insulation pad 27 is fixedly installed at the bottom end of the outer wall of the handle 26.
[0030] In this embodiment, the handle 26 and the anti-scalding button 37 are made of heat-insulating material, which can provide good heat insulation protection for the handle 26 and the anti-scalding button 37. Even if the temperature of the lid body 1 is high, the handle 26 and the anti-scalding button 37 can maintain a relatively low temperature, making it convenient for users to pick up and operate. The sealing ring 4 and the protruding ribs 5 not only enhance the sealing performance between the lid body 1 and the pot body, but also insulate the contact area between the edge of the lid body 1 and the pot body, reducing the heat transfer from the edge to the upper surface of the lid body 1. The outer layer 11 is 316L stainless steel with nano-ceramic coating, which has good high temperature resistance and corrosion resistance. The middle layer 14 is a vacuum insulation layer, which can effectively block the transfer of heat.
[0031] Reference Figure 4 , Figure 5 As shown, the steam venting structure 3 includes a steam venting hole 31, which is located on the upper surface of the pot lid body 1. An L-shaped valve core 32 is movably connected inside the steam venting hole 31. A sealing gasket 33 is fixedly installed at the bottom end of the L-shaped valve core 32. A connecting plate 34 is fixedly installed on the outer wall of the middle end of the L-shaped valve core 32. A steam venting hole 35 is opened on the upper surface of the connecting plate 34. A magnetic component 36 is fixedly installed on the lower surface of the connecting plate 34. An anti-scalding button 37 is fixedly installed at the top end of the L-shaped valve core 32. A magnetic component 38 is fixedly installed on the upper surface of the pot lid body 1 directly below the magnetic component 36.
[0032] In this embodiment, when the steam pressure inside the pot reaches a certain level, the operator presses down the anti-scalding button 37, causing the L-shaped valve core 32 to move the connecting plate 34 and the sealing gasket 33 downwards, so that the sealing gasket 33 is away from the inner wall of the pot lid body 1. The magnetic component 36 at the bottom of the connecting plate 34 and the magnetic component 38 are attracted to each other and fixed. Then, the steam inside the pot lid body 1 is discharged through the steam vent 31 and the steam inlet 35. This can prevent the operator from being scalded by the steam when pressing the exhaust valve for a long time.
[0033] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, a sealing ring 4 is fixedly installed on the outer edge of the pot lid body 1, and a protruding rib 5 is fixedly installed on the bottom edge of the pot lid body 1 inside the sealing ring 4.
[0034] Reference Figure 3 , Figure 4 As shown, the inner side of the heat insulation pad 27 is in contact with the outer wall of the pot lid body 1, and the outer wall of the conical base 23 is in contact with the inner wall of the pot lid body 1.
[0035] In this embodiment, the handle 26 and the heat insulation pad 27 are threadedly connected to the connecting post 22 by bolts 25. The handle 26 and the heat insulation pad 27 are made of heat insulation material, such as high-strength ceramic fiber composite material. This material not only has excellent heat insulation performance, but also has sufficient strength and toughness. The connection between the handle 26 and the pot lid body 1 adopts a threaded connection structure, which makes it convenient for the user to grip and improves the safety of use.
[0036] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the outer layer 11 is 316L stainless steel with a nano-ceramic coating, the middle layer 14 is a vacuum insulation layer, and the inner layer 12 is an aluminum alloy with micro-capillary structures.
[0037] Reference Figure 5 As shown, the upper surface of the sealing gasket 33 is in contact with the inner wall of the lid body 1, and the handle 26 and the anti-scalding button 37 are made of heat-insulating material, such as high-strength ceramic fiber composite material.
[0038] During use, the handle 26 and anti-scalding button 37 are made of heat-insulating material, providing good heat insulation protection for them. Even if the lid body 1 is hot, the handle 26 and anti-scalding button 37 can maintain a relatively low temperature, making it convenient for users to pick up and operate. The sealing ring 4 and protruding ribs 5 not only enhance the sealing performance between the lid body 1 and the pot body, but also insulate the contact area between the lid body 1 and the pot body, reducing heat transfer from the edge to the upper surface of the lid body 1. The outer layer 11 is made of 316L stainless steel with a nano-ceramic coating. Stainless steel has good high temperature resistance and corrosion resistance. The middle layer 14 is a vacuum insulation layer, which can effectively block the transfer of heat. When the steam pressure inside the pot reaches a certain level, the operator presses down the anti-scalding button 37, which causes the L-shaped valve core 32 to move the connecting plate 34 and the sealing gasket 33 downward, so that the sealing gasket 33 is away from the inner wall of the pot lid body 1. The magnetic component 36 at the bottom of the connecting plate 34 and the magnetic component 38 are attracted to each other and fixed. Then the steam inside the pot lid body 1 is discharged through the steam vent 31 and the steam inlet 35. This can prevent the operator from being scalded by the steam when pressing the exhaust valve for a long time.
[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A heat-insulating and anti-scalding stainless steel pot cover comprising a pot cover body (1) in a multi-layer composite structure, characterized in that: The pot lid body (1) includes an anti-scalding structure (2) and a steam venting structure (3); The pot lid body (1) consists of an outer layer (11), a vacuum layer (13), a middle layer (14), and an inner layer (12) from the outside to the inside. Anti-scalding structure (2), wherein the anti-scalding structure (2) is detachably connected to the pot lid body (1); The steam exhaust structure (3) is disposed on the pot lid body (1).
2. The heat-insulated and anti-scald stainless steel pot cover according to claim 1, characterized in that: The anti-scalding structure (2) includes a through hole (21), which is located at the center of the upper surface of the pot lid body (1). A connecting post (22) is movably installed inside the through hole (21). A conical base (23) is fixedly installed at the bottom end of the connecting post (22). A threaded groove (24) is opened inside the top end of the connecting post (22). A bolt (25) is threaded inside the threaded groove (24). A handle (26) is fixedly installed at the top end of the bolt (25). A heat insulation pad (27) is fixedly installed at the bottom end of the outer wall of the handle (26).
3. The heat-insulated and anti-scald stainless steel pot cover according to claim 2, characterized in that: The steam venting structure (3) includes a steam vent (31), which is located on the upper surface of the pot lid body (1). An L-shaped valve core (32) is movably connected inside the steam vent (31). A sealing gasket (33) is fixedly installed at the bottom end of the L-shaped valve core (32). A connecting plate (34) is fixedly installed on the outer wall of the middle end of the L-shaped valve core (32). A steam vent (35) is opened on the upper surface of the connecting plate (34). A magnetic component one (36) is fixedly installed on the lower surface of the connecting plate (34). An anti-scalding button (37) is fixedly installed at the top end of the L-shaped valve core (32). A magnetic component two (38) is fixedly installed on the upper surface of the pot lid body (1) directly below the magnetic component one (36).
4. The heat-insulating and scalding-proof stainless steel pot lid according to claim 3, characterized in that: A sealing ring (4) is fixedly installed on the outer edge of the pot lid body (1), and a protruding rib (5) is fixedly installed on the bottom edge of the pot lid body (1) inside the sealing ring (4).
5. The heat-insulated and anti-scald stainless steel pot cover according to claim 4, characterized in that: The inner side of the heat insulation pad (27) is in contact with the outer wall of the pot lid body (1), and the outer wall of the conical base (23) is in contact with the inner wall of the pot lid body (1).
6. The heat-insulated and anti-scald stainless steel pot cover according to claim 5, characterized in that: The outer layer (11) is 316L stainless steel with a nano-ceramic coating, the middle layer (14) is a vacuum insulation layer, and the inner layer (12) is an aluminum alloy with a micro-capillary structure.
7. The heat-insulated and anti-scald stainless steel pot cover according to claim 6, characterized in that: The upper surface of the sealing gasket (33) is in contact with the inner wall of the lid body (1), and the handle (26) and the anti-scalding button (37) are made of heat-insulating material, such as high-strength ceramic fiber composite material.