A pot cover structure

Abstract

The utility model provides a kind of pot cover structure, comprising: shell body, metal sheet, handle;Plastic shell body is integrally formed in the outer periphery of metal sheet, metal sheet is located in the central part of shell body, handle is installed in the central part of shell body upper surface;Metal sheet central part is equipped with glue inlet and the flow guide groove being communicated with glue inlet, and metal sheet is equipped with several through positioning hole of metal sheet, and shell body interior is formed with positioning column and is equipped with positioning hole.Pot cover of the utility model can make pot cover have enough self-weight to prevent being lifted by steam, and can have the advantages of low production cost, simple process, no need to spray to avoid food-grade safety hazard under the premise of appearance beautiful, diversification.

Description

Technical Field

[0001] This utility model relates to the field of cookware technology, and more specifically to a pot lid structure. Background Technology

[0002] With the improvement of living standards, people are paying increasing attention to the exquisite appearance and color of kitchen appliances. Electric cookers, as an indispensable small kitchen appliance, are widely loved. How to break through traditional design styles and make electric cookers and other appliances with steaming and cooking functions possess the aesthetic appeal of works of art, achieving more novel and diverse designs and richer color combinations, has become a key issue for innovation in electric cooking appliances.

[0003] Most small electric cookers on the market use glass or metal lids. These lids need to be heavy enough to prevent them from lifting and floating during cooking due to excess steam. However, both glass and metal lids limit the product's design and functionality. Glass lids can only be made in simple flat or rounded shapes and are limited to a single color. Metal lids, whether made of natural stainless steel or coated iron, involve more complex manufacturing processes and are significantly more expensive to produce than glass or food-grade plastic lids. Furthermore, the coating process for iron plates requires strict control over the equipment, baking temperature, operator skills, and uniformity. Inadequate professionalism can result in coatings that fail to meet food-grade standards, posing a health risk.

[0004] In summary, existing glass pot lids suffer from drawbacks such as simple design and limited color options. Metal pot lids, on the other hand, suffer from high material and processing costs, complex painting processes, and potential food safety hazards, all of which urgently require improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a pot lid structure that allows the pot lid to have sufficient self-weight to prevent it from being lifted and jumping by steam. It also has the advantages of low production cost, simple process, no need for spraying, and avoidance of food safety hazards, while being aesthetically pleasing and versatile.

[0006] To achieve the above objectives, this utility model provides a pot lid structure, including: an outer shell, a metal plate, and a handle; The plastic outer shell is integrally molded around the metal plate, which is located in the center of the outer shell. The handle is installed in the center of the upper surface of the outer shell. The center of the metal plate has an inlet and a guide groove connected to the inlet. The metal plate also has several positioning holes that penetrate the metal plate. The outer shell has positioning pins that pass through the positioning holes.

[0007] Furthermore, the outer shell is integrally injection molded on the outer periphery of the metal plate. The upper and lower surfaces of the outer shell have notches formed at the center corresponding to the glue inlet of the metal plate. The glue inlet is located inside the notch and is not covered by the outer shell. The handle is installed and covers the notch on the upper surface of the outer shell.

[0008] Furthermore, the guide channel has a cross structure, with the notch and glue inlet being circular and the notch diameter being larger than the glue inlet. One end of the guide channel is connected to the glue inlet, and the other end extends radially beyond the notch area.

[0009] Furthermore, during the injection molding of the outer shell, positioning posts are formed that pass through each positioning hole of the metal plate, with the upper and lower ends of the positioning posts located on the upper and lower surfaces of the outer shell, respectively.

[0010] Furthermore, the metal plate and the outer shell are integrally injection molded in a mold, which is shaped like the outer shell. At least two positioning protrusions are provided inside the mold, and the metal plate is provided with positioning grooves corresponding to the positions of each positioning protrusion. The positioning grooves and positioning protrusions are set within the range of the notch in the outer shell. When the metal plate is placed in the mold, the positioning grooves engage with the positioning protrusions one by one.

[0011] Furthermore, the portion of the outer shell located above the metal plate is designated as the upper outer shell, and the portion of the outer shell located below the metal plate is designated as the lower outer shell. The notch on the upper outer shell is designated as the upper notch, and the notch on the lower outer shell is designated as the lower notch. The handle is installed at the upper notch and covers the upper notch.

[0012] Furthermore, it also includes an upper washer and a lower washer, which respectively cover the upper and lower notches of the outer casing. The washer has a screw hole in the center, and the screw passes through the lower washer, the outer casing, the metal plate, and the upper washer and enters the handle for locking.

[0013] Furthermore, the lid is equipped with an exhaust vent that runs through the outer shell and metal plate.

[0014] Furthermore, the thickness of the metal plate is not less than 0.3 mm, and the thickness of the portion of the outer shell covering the upper and lower surfaces of the metal plate is not less than 0.5 mm.

[0015] Furthermore, the thickness of the part of the pot lid where the metal plate overlaps with the outer shell is not less than 1.5mm.

[0016] After adopting the above solution, the pot lid of this utility model has a plastic outer shell integrally formed on the outer circumference of the metal plate. The metal plate itself has a large self-weight, which can give the pot lid a certain weight and prevent it from jumping up when cooking food. The plastic outer shell is integrally formed on the outer circumference of the metal plate. The outer shell can be flexibly shaped in appearance, with different colors and shapes. Compared with the process of spraying coating on metal pot lids, it is lower in cost and simpler in process, and can also avoid food safety problems caused by coatings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the metal plate of this utility model.

[0018] Figure 2 This is a top view of the metal plate of this utility model.

[0019] Figure 3 This is a schematic diagram of the assembly of the pot lid of this utility model (the metal plate is shown separately).

[0020] Figure 4 This is a schematic diagram of the structure of the pot lid of this utility model.

[0021] Figure 5 This is a cross-sectional view of the pot lid of this utility model.

[0022] Figure 6 This is a bottom view of the pot lid of this utility model.

[0023] Figure 7 This is a schematic diagram of the pot lid of this utility model assembled in a pot.

[0024] Explanation of icon numbers: 10. Pot lids; 1. Metal plate; 11. Glue inlet; 12. Flow guide groove; 13. Positioning hole; 14. Positioning groove; 2. Outer shell; 21. Upper outer shell; 211. Upper notch; 22. Lower outer shell; 221. Lower notch; 23. Positioning post; 3. Handle; 41 Upper gasket; 42 Lower gasket; 5 screws; 6 exhaust ports; 7. Pot body; 8. Base. Detailed Implementation

[0025] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0026] See Figure 1 , Figure 2 In the production of the pot lid 10 of this utility model, a metal plate 1 is placed in a mold (not shown) shaped like a pot lid 10. After injection molding, an integrally molded plastic outer shell 2 is wrapped around the metal plate 1. The outer shell 2 and the metal plate 1 form the body of the pot lid 10. After being combined and installed with the handle 3 and other structures, a complete pot lid 10 is formed. Therefore, the primary premise of this utility model is that the plastic outer shell 2 wrapped around the metal plate 1 must be made of food-grade plastic.

[0027] Further reading Figures 3 to 6The pot lid 10 structure of this utility model includes: an outer shell 2, a metal plate 1, and a handle 3; the plastic outer shell 2 is integrally formed on the outer periphery of the metal plate 1, the metal plate 1 is located in the center inside the outer shell 2, and the handle 3 is installed in the center of the upper surface of the outer shell 2; the metal plate 1 is provided with a glue inlet 11 and a guide groove 12 communicating with the glue inlet 11, and the metal plate 1 is provided with a plurality of positioning holes 13 penetrating the metal plate 1, and a positioning post 23 is formed inside the outer shell 2 to pass through the positioning holes 13.

[0028] By incorporating a metal plate 1 in the pot lid 10 and integrally forming a plastic outer shell 2 around the outer circumference of the metal plate 1, the pot lid 10 gains weight due to the significant weight of the metal plate 1 itself. This also improves the overall structural rigidity of the pot lid, preventing it from being lifted and jumping by steam during cooking, thus making the cooking process more efficient and enhancing the user experience.

[0029] In addition, the plastic outer shell 2 is integrally molded around the metal plate 1. The outer shell 2 can be flexibly shaped to have different colors and shapes. Compared with the process of spraying coating on the metal pot lid 10, it has lower cost, simpler process, and can also avoid food safety problems caused by coating.

[0030] The mold design of this utility model is such that notches are formed in the center of the upper and lower surfaces of the outer shell 2 corresponding to the position of the glue inlet 11 of the metal plate 1, so that the glue inlet 11 is located in the notch and is not covered by the outer shell 2, and the handle 3 is installed and covers the notch on the upper surface of the outer shell 2.

[0031] To ensure the outer shell 2 is seamlessly integrated into the mold between the metal plate 1 and the mold, and to position the metal plate 1 appropriately within the outer shell 2, the guide channel 12 on the metal plate 1 has a cross-shaped structure. The notch and the injection port 11 are circular, with the notch diameter larger than the injection port 11. One end of the guide channel 12 connects to the injection port 11, and the other end extends radially beyond the notch area. During injection into the mold, the liquid material flows from the injection port 11 and flows evenly along the cross-shaped guide channel 12 in all directions towards the metal plate 1, achieving multi-angle guidance and uniformly encapsulating the metal plate 1. Furthermore, the cross-shaped guide channel 12 ensures that the material flow is evenly dispersed in all directions after injection from the injection port 11, facilitating air removal from the mold and preventing bubble formation. This reduces the probability of weld lines and pits on the surface of the outer shell 2, resulting in a smooth and uniform surface and minimizing the possibility of cracking and separation between the metal plate 1 and the outer shell 2 due to uneven encapsulation.

[0032] The positioning holes 13 on the metal plate 1 are designed to allow the injected material to reach the other side of the metal plate 1 during the injection molding of the outer shell 2. This ensures that the upper and lower surfaces of the metal plate 1 are simultaneously and evenly covered by the material, preventing vertical displacement of the metal plate 1 within the mold due to excessive impact from one side of the material flow. This keeps the metal plate 1 at the center height of the mold, ultimately achieving a stable placement within the center of the outer shell 2. After molding, the material passing through the positioning holes 13 solidifies to form positioning posts 23. The upper and lower ends of the positioning posts 23 are located on the upper and lower surfaces of the outer shell 2, further stabilizing the metal plate 1 and solidifying the connection between it and the outer shell 2.

[0033] When the metal plate 1 is in the mold, positioning grooves 14 can be provided on the metal plate 1, and positioning protrusions (not shown) can be provided in the mold to initially fix the metal plate 1 and prevent it from shifting during injection molding. Specifically, two positioning protrusions are provided in the mold, and two positioning grooves 14 are provided on the metal plate 1 corresponding to the positions of the two positioning protrusions. When the metal plate 1 is placed in the mold, the positioning grooves 14 engage with the positioning protrusions one by one. The number of positioning protrusions and positioning grooves 14 can be set according to the actual situation, and the positions of the positioning grooves 14 and the positioning points are preferably set within the range of the notch 211 on the outer shell 2 to avoid the formation of pits on the surface of the outer shell 2 due to the positioning protrusions.

[0034] In this embodiment, the portion of the outer shell 2 located above the metal plate 1 is the upper outer shell 21, and the portion of the outer shell 2 located below the metal plate 1 is the lower outer shell 22. The notch on the upper outer shell 21 is the upper notch 211, and the notch on the lower outer shell 22 is the lower notch 221. The handle 3 is installed at the upper notch 211 and covers the upper notch 211.

[0035] Specifically, the handle 3 is screwed to the outer casing 2 by screws 5. This embodiment also includes an upper washer 41 and a lower washer 42, which cover the upper notch 211 and lower notch 221 of the outer casing 2 from above and below, respectively. The washer has a screw hole in the center. The screw 5 passes through the lower washer 42, the outer casing 2, the metal plate 1 (for example, the center of the glue inlet 11 has a pre-drilled hole for the screw to pass through after molding), the upper washer 41, and enters the handle 3 for locking. The upper washer 41 and the lower washer 42 can be made of metal.

[0036] In this embodiment, the lid 10 is also provided with an exhaust port 6 that runs vertically through the outer shell 2 and the metal plate 1. That is, the exhaust port 6 is pre-installed on the metal plate 1, and the position of the exhaust port 6 is also avoided when the outer shell 2 is injection molded, forming an exhaust port 6 that runs vertically through the lid 10. The exhaust port 6 can prevent the lid 10 from completely sealing the pot body 7 during cooking, which would prevent steam from escaping and creating micro-pressure, causing the lid 10 to become stuck on the pot body 7 and unable to be removed smoothly, or cause the food to overflow during cooking.

[0037] Preferably, the thickness of the metal plate 1 is not less than 0.3 mm, the thickness of the portion of the outer shell 2 covering the upper and lower surfaces of the metal plate 1 is not less than 0.5 mm, and the thickness of the lid 10 in the portion where the metal plate 1 and the outer shell 2 overlap is not less than 1.5 mm.

[0038] See Figure 7 The pot lid 10 of this utility model is applied to a cookware, which also includes a base 8 and a pot body 7. The pot body 7 is built into the base 8, which is connected to a power source. The pot lid 10 is placed on the pot body 7. The metal plate 1 in the pot lid 10 prevents the pot lid 10 from being lifted by water vapor when it is placed on the pot body 7, which is beneficial for steaming and cooking food and improves the overall cooking efficiency. The pot lid 10 of this utility model can be used in various cookware components. The shape of the outer shell 2 can be designed into different shapes according to different cookware. It is only necessary to place the metal plate 1 in the mold of different shapes for injection molding. As for the structure of other parts of the cookware (such as the pot body 7, the base 8, etc.), they are not the main inventive points of this utility model, so they will not be described in detail here.

[0039] The above is merely one embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pot lid structure, characterized in that, include: Casing, metal plate, handle; The plastic outer shell is integrally molded around the metal plate, which is located in the center of the outer shell. The handle is installed in the center of the upper surface of the outer shell. The center of the metal plate has an inlet and a guide groove connected to the inlet. The metal plate also has several positioning holes that penetrate the metal plate. The outer shell has positioning pins that pass through the positioning holes.

2. The pot lid structure according to claim 1, characterized in that, The outer shell is integrally injection molded on the outer periphery of the metal plate. There are notches formed in the center of the upper and lower surfaces of the outer shell, corresponding to the positions of the glue inlet of the metal plate. The glue inlet is located inside the notch and is not covered by the outer shell. The handle is installed and covers the notch on the upper surface of the outer shell.

3. The pot lid structure according to claim 2, characterized in that, The guide channel has a cross structure, with the notch and glue inlet being circular and the notch diameter being larger than the glue inlet. One end of the guide channel is connected to the glue inlet, and the other end extends radially beyond the notch area.

4. The pot lid structure according to claim 1, characterized in that, During the injection molding of the outer shell, positioning posts are formed that pass through the positioning holes of the metal plate, with the upper and lower ends of the positioning posts located on the upper and lower surfaces of the outer shell, respectively.

5. A pot lid structure according to claim 2, characterized in that, The metal plate and the outer shell are integrally injection molded in a mold. The mold is shaped like the outer shell and has at least two positioning protrusions. The metal plate has positioning grooves corresponding to the positions of the positioning protrusions. The positioning grooves and positioning protrusions are set within the range of the notch in the outer shell. When the metal plate is placed in the mold, the positioning grooves engage with the positioning protrusions one by one.

6. A pot lid structure according to claim 2, characterized in that, The part of the outer shell above the metal plate is called the upper outer shell, and the part of the outer shell below the metal plate is called the lower outer shell. The notch on the upper outer shell is called the upper notch, and the notch on the lower outer shell is called the lower notch. The handle is installed at the upper notch and covers the upper notch.

7. A pot lid structure according to claim 6, characterized in that, It also includes an upper washer and a lower washer, which cover the upper and lower notches of the outer shell, respectively. The washer has a screw hole in the center, and the screw passes through the lower washer, the outer shell, the metal plate, and the upper washer and enters the handle for locking.

8. A pot lid structure according to any one of claims 1 to 7, characterized in that, The lid also has an exhaust vent that runs through the outer shell and metal plate.

9. A pot lid structure according to any one of claims 1 to 7, characterized in that, The thickness of the metal plate is not less than 0.3 mm, and the thickness of the portion of the outer shell covering the upper and lower surfaces of the metal plate is not less than 0.5 mm.

10. A pot lid structure according to any one of claims 1 to 7, characterized in that, The thickness of the part of the pot lid where the metal plate overlaps with the outer shell shall not be less than 1.5mm.

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