Integrated paper cup with reinforcing ring structure
By introducing a reinforcing ring structure and multi-layer insulation design into the paper cup, the problems of insufficient structural strength and insulation performance of traditional paper cups are solved, improving the stability and insulation effect of the paper cup and achieving an environmentally friendly and efficient user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HEYI PACKAGING TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional paper cups are inadequate in terms of structural strength, heat insulation, and grip comfort. They are particularly prone to deformation and instability when filled with hot drinks, and existing insulation measures increase costs and resource consumption, making them environmentally unfriendly.
An integrated paper cup with a reinforcing ring structure was designed, including an elastic ring and a heat insulation ring at the cup mouth, and a combination of medium-density foam layer and low-density nanoporous layer inside, and an external coating of nano-alumina coating and carbon fiber bundles to enhance structural strength and heat insulation performance.
It significantly improves the rigidity and stability of paper cups, prevents the cup rim from collapsing, achieves efficient heat insulation, reduces the rate of heat transfer, and enhances user safety and environmental friendliness.
Smart Images
Figure CN224241533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper cup technology, specifically to an integrated paper cup with a reinforcing ring structure. Background Technology
[0002] As is well known, with the rapid development of society and the economy and the accelerated pace of life, disposable paper cups are widely used in catering services, food delivery, offices, and public places due to their convenience, hygiene, and good packaging performance. Paper cups are typically composed of a paper substrate (such as white cardboard or grey-backed white board) and an inner waterproof material such as a polyethylene (PE) coating to achieve basic functions such as leak-proofness and temperature resistance. However, in actual use, traditional paper cups still have many shortcomings, especially in terms of structural strength, heat insulation performance, and grip comfort, which urgently need improvement. These problems not only affect the user experience but also limit the application and promotion of paper cups in the high-end market.
[0003] Ordinary paper cups typically have a rolled edge at the rim to enhance edge rigidity and prevent tearing. However, due to the thinness of the material and lack of reinforcing structure, paper cups are prone to deformation or even collapse when filled with hot drinks or subjected to external pressure. Especially in high-temperature environments (such as when holding coffee or hot tea), the paper cup softens easily, leading to deformation, instability, and compromised safety. Traditional paper cups often use a single-layer structure, which is ineffective at preventing heat transfer, making users highly susceptible to burns when holding the cup directly. While some products address this issue by adding an outer heat-insulating paper sleeve, this increases costs and resource consumption, is less aesthetically pleasing, and is environmentally unfriendly. Therefore, a solution to this technical problem is necessary. Utility Model Content
[0004] Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an integrated paper cup with a reinforcing ring structure.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated paper cup with a reinforcing ring structure, comprising a paper cup body, the top outer ring of the paper cup body having a rolled edge, the bottom end of the rolled edge having a spherical ring groove, the spherical ring groove having an elastic ring, the bottom end of the elastic ring having a heat insulation ring, the inner ring of the heat insulation ring having an installation groove, the installation groove having a foamed silicone layer, the foamed silicone layer comprising a medium-density foam layer and a low-density nanoporous layer.
[0008] Furthermore, the present invention is improved by providing a cavity inside the bottom end of the paper cup body and a fixing ring at the bottom end of the paper cup body.
[0009] Furthermore, the present invention is improved by coating the inner side of the fixing ring and the heat insulation ring with a nano-alumina coating.
[0010] Furthermore, the present invention is improved by providing carbon fiber bundles on the mounting groove.
[0011] Furthermore, the present invention is improved by providing a reinforcing layer inside the elastic ring.
[0012] Furthermore, an improvement of this utility model is that the reinforcing layer is made of glass fiber.
[0013] Furthermore, the present invention is improved in that the outer wall of the heat insulation ring and the inner wall of the paper cup body are both coated with an antibacterial coating.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides an integrated paper cup with a reinforcing ring structure, which has the following beneficial effects:
[0016] This one-piece paper cup with a reinforcing ring structure features a monolithic molded body with interlocking components, facilitating manufacturing and recycling. A spherical ring groove at the bottom of the rolled edge, with an elastic ring installed on it, effectively reinforces the rolled edge using the elasticity and pre-tightening force of the ring, significantly improving the rigidity and stability of the cup rim. The compressive force generated by the elastic ring inserted into the spherical ring groove prevents localized collapse of the cup rim under high temperature or pressure, thus extending the lifespan of the paper cup. The medium-density foam layer and the low-density nanoporous layer work synergistically to achieve both heat insulation and cushioning functions. The medium-density foam layer primarily provides cushioning and protection, absorbing external impacts while also possessing some heat insulation capabilities. The low-density nanoporous layer is a highly efficient heat insulation layer that significantly reduces the heat transfer rate, preventing burns to the hands. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;
[0019] Figure 3 This is a front half-sectional view of the structure of this utility model;
[0020] Figure 4 This utility model Figure 1 A magnified partial view of the paper cup body from the front half-section.
[0021] In the diagram: 1. Paper cup body; 2. Rolled edge; 3. Elastic ring; 4. Heat insulation ring; 5. Medium-density foam layer; 6. Low-density nanoporous layer; 7. Cavity; 8. Fixing ring; 9. Carbon fiber bundle; 10. Reinforcing layer. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-4 This utility model is an integrated paper cup with a reinforcing ring structure, including a paper cup body 1. The top outer ring of the paper cup body 1 is provided with a rolled edge 2, and the bottom end of the rolled edge 2 is provided with a spherical ring groove. An elastic ring 3 is provided on the spherical ring groove, and a heat insulation ring 4 is provided at the bottom end of the elastic ring 3. The inner ring of the heat insulation ring 4 is provided with an installation groove, and a foamed silicone layer is provided on the installation groove. The foamed silicone layer includes a medium-density foam layer 5 and a low-density nanoporous layer 6. In this embodiment, the elastic ring 3 is inserted into the spherical ring groove, thereby squeezing and fixing the elastic ring 3 to the spherical ring groove. The medium-density foam layer 5 (0.5g / cm³) on the installation groove buffers mechanical impact, and the low-density nanoporous layer 6 (0.3g / cm³) has a thermal conductivity ≤0.03W / m·K, thereby improving structural strength while providing efficient heat insulation.
[0024] In order to reduce the heat transfer to the table where the paper cup body 1 is placed, in this solution, a cavity 7 is provided inside the bottom end of the paper cup body 1, and a fixing ring 8 is provided at the bottom end of the paper cup body 1. The cavity 7 can effectively reduce the heat conduction to the table, and the fixing ring 8 can strengthen the structural strength of the bottom of the paper cup body 1.
[0025] In order to improve the structural strength of the fixing ring 8 and the heat insulation ring 4, in this solution, the inner side of the fixing ring 8 and the heat insulation ring 4 is coated with a nano-alumina coating. The nano-alumina coating has the characteristics of high hardness, thereby improving the structural strength of the fixing ring 8.
[0026] To further improve the structural strength of the heat insulation ring 4, in this design, a carbon fiber bundle 9 is also provided on the mounting groove. The carbon fiber bundle 9 is wound around the mounting groove, thereby improving the tensile strength of the heat insulation ring 4.
[0027] To improve the structural strength of the elastic ring 3, a reinforcing layer 10 is provided inside the elastic ring 3 in this design. This layer bears the circumferential stress transmitted by the cup rim 2 and prevents the elastic ring 3 from radially expanding and deforming when hot drinks are poured in. The reinforcing layer 10 is made of glass fiber, which further improves the structural strength of the reinforcing layer 10.
[0028] To improve antibacterial performance, in this design, the outer wall of the heat insulation ring 4 and the inner wall of the paper cup body 1 are coated with an antibacterial coating. The antibacterial coating on the outer wall of the heat insulation ring 4 and the inner wall of the paper cup body 1 can improve the antibacterial performance of this structure during use.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A one-piece paper cup with a reinforcing ring structure, characterized in that, The cup includes a paper cup body (1), the top outer ring of the paper cup body (1) is provided with a rolled edge (2), the bottom end of the rolled edge (2) is provided with a spherical ring groove, the spherical ring groove is provided with an elastic ring (3), the bottom end of the elastic ring (3) is provided with a heat insulation ring (4), the inner ring of the heat insulation ring (4) is provided with an installation groove, the installation groove is provided with a foamed silicone layer, the foamed silicone layer includes a medium density foamed layer (5) and a low density nanoporous layer (6).
2. The integrated paper cup with a reinforcing ring structure according to claim 1, characterized in that, The bottom end of the paper cup body (1) is provided with a cavity (7) and a fixing ring (8) is provided at the bottom end of the paper cup body (1).
3. The integrated paper cup with a reinforcing ring structure according to claim 2, characterized in that, The inner sides of the fixing ring (8) and the heat insulation ring (4) are coated with a nano-alumina coating.
4. The integrated paper cup with a reinforcing ring structure according to claim 1, characterized in that, The mounting slot is also provided with carbon fiber bundles (9).
5. The integrated paper cup with a reinforcing ring structure according to claim 1, characterized in that, The elastic ring (3) has a reinforcing layer (10) inside.
6. The integrated paper cup with a reinforcing ring structure according to claim 5, characterized in that, The reinforcing layer (10) is made of glass fiber.
7. The integrated paper cup with a reinforcing ring structure according to claim 1, characterized in that, The outer wall of the heat insulation ring (4) and the inner wall of the paper cup body (1) are both coated with an antibacterial coating.