High-temperature-resistant plastic bowl
The high-temperature resistant plastic bowl, with its three-layer composite structure and reinforced design, solves the problem of insufficient heat resistance of plastic bowls, enabling safe use of high-temperature food, improving its drop resistance, adapting to various temperature environments, and preventing slippage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-17
AI Technical Summary
Existing plastic bowls have insufficient heat resistance and are prone to deformation when exposed to high temperatures for extended periods. They also soften easily when microwaved, posing a risk of burns. Furthermore, traditional improvement solutions result in bowls that are heavy, have a rough feel, and lack heat insulation design.
It adopts a three-layer composite structure: the outer layer is a high-temperature resistant fiber reinforcement layer, the middle layer is an aerogel insulation layer, and the inner layer is a food-grade high-temperature resistant inner layer. Combined with the reinforcement structure, including the detachable connection between the lid and the bowl body and the reinforcing rib design, it uses polyphenylene sulfide or polyether ether ketone matrix resin and carbon fiber or glass fiber composite material.
It effectively blocks heat transfer from hot food to prevent burns, enhances the bowl's resistance to drops and pressure, keeps the temperature below 40℃, adapts to various temperature environments, and improves the static friction coefficient to prevent slippage.
Smart Images
Figure CN223994679U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic products technology, specifically a high-temperature resistant plastic bowl. Background Technology
[0002] Plastic bowls refer to non-toxic and harmless bowls made of food-grade PP material. They can be directly heated in a microwave oven, are easy to clean, and have a smooth surface.
[0003] With the development of the times and the rise of the food delivery and catering industries, more and more people are using plastic bowls. Plastic bowls have the advantages of being convenient to use, not easily damaged by bumps, and having a low cost.
[0004] Traditional plastic bowls are mostly made of polypropylene (PP) or polyethylene (PE), which have a limited temperature resistance range (usually below 120℃). Prolonged exposure to high temperatures can easily cause deformation and even the release of harmful substances. Existing improvements, such as adding glass fiber reinforcement, enhance heat resistance, but result in a heavy, rough-feeling bowl with a lack of insulation, posing a risk of burns when handling hot food. Furthermore, ordinary plastic bowls are prone to softening due to localized overheating during microwave heating, affecting their lifespan. Therefore, we propose a high-temperature resistant plastic bowl to address these issues. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides a high-temperature resistant plastic bowl, which solves the problems mentioned in the background art.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a high-temperature resistant plastic bowl, including a bowl body, wherein the bowl body is composed of a bowl lid structure and a reinforcing structure;
[0007] The bowl body comprises, from the outside to the inside, a high-temperature resistant fiber reinforcement layer, an aerogel insulation layer, and a food-grade high-temperature resistant inner layer.
[0008] A bowl lid structure, wherein the bowl lid structure is detachably connected to the bowl body;
[0009] A reinforcing structure is provided on the bowl body.
[0010] Furthermore, the bowl lid structure includes a bowl lid body. The bottom end of the bowl lid body is snapped onto the top end of the bowl body through a snap-fit ring groove. An arc-shaped ring groove is formed on the inner wall of the snap-fit ring groove inside the bowl lid body. A sealing ring I is fixedly installed inside the arc-shaped ring groove. There are three sealing rings I, and the inner sides of the three sealing rings I are respectively in contact with the outer wall of the top end of the bowl body. A T-shaped post is movably connected to the upper surface of the bowl lid body through a hole. A pull ring is fixedly installed on the top end of the T-shaped post. A support plate is fixedly installed on the bottom end of the T-shaped post. A sealing ring II is fixedly installed on the outer wall of the T-shaped post. A connecting gasket is fixedly connected between the support plate and the bowl lid body.
[0011] Furthermore, the reinforcing structure includes reinforcing ribs, and there are several reinforcing ribs. The outer walls of several reinforcing ribs are fixedly installed on the outer wall of the bowl body. A reinforcing plate is fixedly connected between several reinforcing ribs. A connecting ring is fixedly connected to the bottom end of the reinforcing plate and the reinforcing ribs. A reinforcing strip is fixedly connected to the bottom end of the connecting ring. There are several reinforcing strips, and the outer walls of several reinforcing strips are fixedly installed on the outer wall of the bowl body.
[0012] Furthermore, the high-temperature resistant fiber reinforcement layer is a composite material of polyphenylene sulfide or polyether ether ketone matrix resin and 10%-30% carbon fiber or glass fiber, with a thickness of 1.2-2.5 mm; the food-grade high-temperature resistant inner layer is made of food-grade silicone, ceramic or stainless steel, with a thickness of 0.5-3 mm; and the aerogel insulation layer is an aerogel felt or aerogel coating, with a thickness of 1-5 mm and a thermal conductivity ≤0.02 W / (m·K).
[0013] Furthermore, the connecting ring is integrally formed with the high-temperature resistant fiber reinforcement layer.
[0014] Furthermore, an adhesive layer is provided between the inner wall of the bowl and the food-grade high-temperature resistant inner layer, and the adhesive layer is a high-temperature resistant adhesive layer.
[0015] The beneficial effects of this utility model are:
[0016] 1. This high-temperature resistant plastic bowl features a three-layer composite structure: a food-grade high-temperature resistant inner layer, an aerogel insulation layer, and a high-temperature resistant fiber reinforcement layer. The middle aerogel insulation layer has extremely low thermal conductivity, effectively preventing heat from hot food (such as boiling water or hot oil at 100℃) inside the bowl from being transferred to the outside, keeping the outer temperature of the bowl below 40℃ when containing hot food and preventing burns to the user. The inner layer is made of food-grade silicone, ceramic, or stainless steel, allowing direct contact with food and resisting acid and alkali corrosion without releasing harmful substances over long-term use. The outer high-temperature resistant fiber reinforcement layer is made of high-strength fibers such as glass fiber and carbon fiber combined with resin, increasing the bowl's impact resistance by more than 50% and allowing it to withstand temperature changes from -40℃ to 200℃ without deformation or delamination, making it suitable for microwave ovens, ovens, refrigerators, and other applications.
[0017] 2. This high-temperature resistant plastic bowl features a reinforced structure that is integrally molded with a high-temperature resistant fiber reinforcement layer. This enhances the bowl's resistance to compression and reduces deformation when holding heavy objects. The textured design or rubber material increases the static friction coefficient of the bowl on smooth surfaces by 30%, effectively preventing slippage. Attached Figure Description
[0018] 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.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a partial cross-sectional view of the structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the bowl structure of this utility model;
[0022] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0023] Figure 5 This utility model Figure 2 Enlarged schematic diagram of the structure at point B;
[0024] Figure 6 This utility model Figure 2 Enlarged schematic diagram of the structure at point C.
[0025] Explanation of reference numerals in the attached drawings: 1. Bowl body; 11. High-temperature resistant fiber reinforcement layer; 12. Aerogel insulation layer; 13. Food-grade high-temperature resistant inner layer; 2. Bowl lid structure; 21. Bowl lid body; 22. Snap-fit ring groove; 23. Arc-shaped ring groove; 24. Sealing ring one; 25. T-shaped post; 26. Pull ring; 27. Support plate; 28. Sealing ring two; 29. Connecting gasket; 3. Reinforcing structure; 31. Reinforcing rib; 32. Reinforcing plate; 33. Connecting ring; 34. Reinforcing strip. Detailed Implementation
[0026] 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.
[0027] Please see Figures 1-6 A high-temperature resistant plastic bowl includes a bowl body 1, which is composed of a bowl lid structure 2 and a reinforcing structure 3;
[0028] The bowl body 1 includes, from the outside to the inside, a high-temperature resistant fiber reinforcement layer 11, an aerogel insulation layer 12, and a food-grade high-temperature resistant inner layer 13.
[0029] In this embodiment, the bowl body adopts a three-layer composite structure consisting of a food-grade high-temperature resistant inner layer 13, an aerogel insulation layer 12, and a high-temperature resistant fiber reinforcement layer 11. The middle aerogel insulation layer has extremely low thermal conductivity, which can effectively block the heat of hot food (such as boiling water or hot oil at 100°C) inside the bowl from being transferred to the outside, keeping the temperature of the outside of the bowl body 1 below 40°C when holding hot food, thus preventing burns when the user holds it. The inner layer is made of food-grade silicone, ceramic, or stainless steel, which can directly contact food and is resistant to acid and alkali corrosion, and will not release harmful substances after long-term use. The outer high-temperature resistant fiber reinforcement layer 11 is made of high-strength fibers such as glass fiber and carbon fiber combined with resin, which increases the drop resistance of the bowl body by more than 50%, and can withstand temperature changes from -40°C to 200°C without deformation or delamination, making it suitable for microwave ovens, ovens, refrigerators, and other applications.
[0030] Bowl lid structure 2, which is detachably connected to bowl body 1;
[0031] Reinforcing structure 3 is installed on the bowl body 1.
[0032] Reference Figure 2 , Figure 4 , Figure 5 , Figure 6As shown, the bowl lid structure 2 includes a bowl lid body 21. The bottom end of the bowl lid body 21 is snapped onto the top end of the bowl body 1 through a snap-fit ring groove 22. An arc-shaped ring groove 23 is formed on the inner wall of the snap-fit ring groove 22 inside the bowl lid body 21. A sealing ring 24 is fixedly installed inside the arc-shaped ring groove 23. There are three sealing rings 24, and the inner sides of the three sealing rings 24 are respectively in contact with the outer wall of the top end of the bowl body 1. A T-shaped post 25 is movably connected to the upper surface of the bowl lid body 21 through a hole. A pull ring 26 is fixedly installed on the top end of the T-shaped post 25. A support plate 27 is fixedly installed on the bottom end of the T-shaped post 25. A sealing ring 28 is fixedly installed on the outer wall of the T-shaped post 25. A connecting pad 29 is fixedly connected between the support plate 27 and the bowl lid body 21.
[0033] In this embodiment, the bottom of the bowl lid body 21 is tightly fitted with the outer wall of the top of the bowl body 1 through the snap ring groove 22, so that the sealing effect between the bowl lid body 21 and the bowl body 1 is better, making it easier to carry soup food.
[0034] Reference Figure 2 , Figure 3 As shown, the reinforcing structure 3 includes reinforcing ribs 31, and there are several reinforcing ribs 31. The outer walls of several reinforcing ribs 31 are fixedly installed on the outer wall of the bowl body 1. A reinforcing plate 32 is fixedly connected between several reinforcing ribs 31. A connecting ring 33 is fixedly connected to the bottom end of the reinforcing plate 32 and the reinforcing ribs 31. A reinforcing strip 34 is fixedly connected to the bottom end of the connecting ring 33. There are several reinforcing strips 34, and the outer walls of several reinforcing strips 34 are fixedly installed on the outer wall of the bowl body 1.
[0035] In this embodiment, the reinforcing structure 3 and the high-temperature resistant fiber reinforcement layer 11 are integrally formed, which can enhance the compression resistance of the side wall of the bowl 1 and reduce deformation when holding heavy objects. The use of textured design or rubber material increases the static friction coefficient of the bowl on a smooth table by 30%, effectively preventing slippage.
[0036] Reference Figure 2 , Figure 4 As shown, the high-temperature resistant fiber reinforcement layer 11 is a composite material of polyphenylene sulfide or polyether ether ketone matrix resin and 10%-30% carbon fiber or glass fiber, with a thickness of 1.2-2.5mm. The food-grade high-temperature resistant inner layer 13 is made of food-grade silicone, ceramic or stainless steel, with a thickness of 0.5-3mm. The aerogel insulation layer 12 is an aerogel felt or aerogel coating, with a thickness of 1-5mm and a thermal conductivity ≤0.02W / (m·K).
[0037] In this embodiment, the food-grade inner layer directly contacts food, providing safety while its smooth surface (such as the silicone inner layer with a roughness Ra≤0.5μm) is easy to clean, reducing stain residue by 60%; the aerogel insulation layer 12 not only blocks heat but also provides a certain buffering effect due to its porous structure (porosity ≥90%), reducing stress concentration when the bowl is impacted; the high-temperature resistant fiber reinforcement layer 11 serves as the outer layer, combining high strength and processability, enabling complex curved shapes (such as arc-shaped bowl walls), while avoiding the low thermal conductivity of the aerogel layer in traditional metal bowls, preventing condensation on the outside of the bowl due to temperature differences.
[0038] Reference Figure 3 As shown, the connecting ring 33 is integrally formed with the high-temperature resistant fiber reinforcement layer 11.
[0039] Reference Figure 4 As shown, an adhesive layer is provided between the inner wall of the bowl body 1 and the food-grade high-temperature resistant inner layer 13. The adhesive layer is a high-temperature resistant adhesive layer.
[0040] When in use, the bowl body adopts a three-layer composite structure consisting of a food-grade high-temperature resistant inner layer 13, an aerogel insulation layer 12, and a high-temperature resistant fiber reinforcement layer 11. The middle aerogel insulation layer has extremely low thermal conductivity, which can effectively block the heat of hot food (such as boiling water or hot oil at 100℃) inside the bowl from being transferred to the outside, keeping the temperature of the outside of the bowl body 1 below 40℃ when holding hot food, thus preventing burns when the user holds it. The inner layer is made of food-grade silicone, ceramic, or stainless steel, which can directly contact food and is resistant to acid and alkali corrosion, and will not release harmful substances after long-term use. The outer high-temperature resistant fiber reinforcement layer 11 is made of high-strength fibers such as glass fiber and carbon fiber combined with resin, which increases the drop resistance of the bowl by more than 50%. It can withstand temperature changes from -40℃ to 200℃ without deformation or delamination, making it suitable for various applications such as microwave ovens, ovens, and refrigerators. The reinforcing structure 3 is integrally molded with the high-temperature resistant fiber reinforcement layer 11, which can enhance the compression resistance of the side wall of the bowl 1 and reduce deformation when holding heavy objects. The use of textured design or rubber material increases the static friction coefficient of the bowl on smooth tabletops by 30%, effectively preventing slippage.
[0041] 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 high temperature resistant plastic bowl comprising a bowl body (1), characterised in that: The bowl body (1) is composed of a bowl cover structure (2) and a reinforcing structure (3); The bowl body (1) comprises, from outside to inside, a high-temperature-resistant fiber reinforced layer (11), an aerogel thermal insulation layer (12), and a food-grade high-temperature-resistant inner layer (13). The bowl cover structure (2) is detachably connected with the bowl body (1). The reinforcing structure (3) is arranged on the bowl body (1).
2. A high temperature resistant plastic bowl as claimed in claim 1, wherein: The bowl cover structure (2) comprises a bowl cover body (21), the bottom end of the bowl cover body (21) is clamped at the top end of the bowl body (1) through a clamping ring groove (22), an arc-shaped ring groove (23) is arranged on the inner wall of the clamping ring groove (22), a sealing ring I (24) is fixedly installed in the arc-shaped ring groove (23), the number of the sealing ring I (24) is three, the inner sides of the three sealing ring I (24) are in contact with the outer wall of the top end of the bowl body (1), a T-shaped column (25) is movably connected to the upper surface of the bowl cover body (21) through a hole, a pull ring (26) is fixedly installed at the top end of the T-shaped column (25), a support plate (27) is fixedly installed at the bottom end of the T-shaped column (25), a sealing ring II (28) is fixedly installed on the outer wall of the T-shaped column (25), and a connecting pad (29) is fixedly connected between the support plate (27) and the bowl cover body (21).
3. A high temperature resistant plastic bowl as claimed in claim 2, wherein: The reinforcing structure (3) comprises reinforcing ribs (31), the number of the reinforcing ribs (31) is several, the outer walls of the reinforcing ribs (31) are fixedly installed on the outer wall of the bowl body (1), reinforcing plates (32) are fixedly connected between the reinforcing ribs (31), connecting rings (33) are fixedly connected between the reinforcing plates (32) and the bottom ends of the reinforcing ribs (31), reinforcing strips (34) are fixedly connected at the bottom ends of the connecting rings (33), and the number of the reinforcing strips (34) is several.
4. A high temperature resistant plastic bowl as claimed in claim 3, wherein: The high-temperature-resistant fiber reinforced layer (11) is a composite material of polyphenylene sulfide or polyether ether ketone matrix resin and 10%-30% carbon fiber or glass fiber, the thickness is 1.2-2.5 mm, the food-grade high-temperature-resistant inner layer (13) is made of food-grade silica gel, ceramic or stainless steel, the thickness is 0.5-3 mm, the aerogel thermal insulation layer (12) is aerogel felt or aerogel coating, the thickness is 1-5 mm, and the thermal conductivity is ≤0.02 W / (m·K).
5. A high temperature resistant plastic bowl according to claim 4, wherein: The connecting ring (33) is integrally formed with the high-temperature-resistant fiber reinforced layer (11).
6. A high temperature resistant plastic bowl as claimed in claim 5, wherein: An adhesive layer is arranged between the inner wall of the bowl body (1) and the food-grade high-temperature-resistant inner layer (13), and the adhesive layer is a high-temperature-resistant adhesive layer.