Flanging type paper cup cover
By incorporating the inward-folding rim structure, sealing ring, drinking tip design, and coated paper sheet of the flip-top paper cup lid, the problems of poor sealing and inconvenient drinking are solved, resulting in better sealing performance and a more convenient drinking experience.
Patent Information
- Application Number
- CN202520634785.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing paper cup lids have poor sealing performance, which can easily cause beverages to spill and make drinking inconvenient, especially when the liquid inside the cup is shaken. The lid and the cup body do not fit tightly, which affects hygiene and convenience.
A flip-top paper cup lid was designed, which uses an inward-flipping rim structure and a sealing ring to enhance the sealing performance. A drinking spout structure and a coated paper sheet are set to make drinking convenient. A flip-top design is added to the drinking spout, and the sealing effect is improved by lever principle and soft elastic material.
It improves the spill prevention performance of beverages, strengthens the connection between the lid and the cup body, and enhances the hygiene and convenience of the drinking process. It is suitable for both hot and cold drinks.
Smart Images

Figure CN223891535U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of beverage packaging sealing devices, specifically a flip-top paper cup lid. Background Technology
[0002] The flip-top paper cup lid is a uniquely designed lid primarily used for beverages such as milk foam tea. Its design features include various forms such as half-open and three-quarter-open. This design perfectly conforms to the curve of the lips, facilitating a smooth experience of sipping tea and milk foam while drinking, and it is easy to snap back to prevent spills. Existing paper cup lids have the following drawbacks: insufficient sealing performance, easily causing beverages to overflow; the lid and cup body are not tightly connected, causing liquid to splash when the cup is shaken; in addition, the drinking spout lacks a flip-top design, affecting the convenience and hygiene of drinking. To address these problems and overcome the shortcomings of the existing technology, this utility model provides a novel flip-top paper cup lid. Utility Model Content
[0003] The purpose of this invention is to provide a flip-top paper cup lid that solves the technical problems of poor sealing performance and inconvenience in drinking from existing paper cup lids. It achieves this by improving the sealing structure of the lid and enhancing the bonding strength between the lid and the cup body, thereby reducing spillage when the liquid is shaken. Furthermore, the addition of a flip-top design at the drinking spout further improves hygiene and convenience.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a flip-top paper cup lid, comprising a lid body, the lid body being divided into upper and lower parts, the upper part being the outer lid surface, having an inner flip-edge structure for sealing, and the lower part being the inner lid surface, which fits tightly against the cup opening to effectively prevent beverage spillage. The lid body is provided with a drinking spout and an air hole, wherein the air hole and the drinking spout are located on the same horizontal line to ensure pressure balance during drinking, allowing the beverage to flow out smoothly. The drinking spout has two openings, forming a drinking tip structure based on the lever principle in the middle; the outer wall of the lid body is designed with a slightly curved shape and has a slightly convex structure.
[0005] Preferably, two flexible, soft, elastic coated paper sheets A and B are integrally connected on both sides of the drinking spout structure, corresponding to and fitting the two openings on the drinking spout. The outer edges of coated paper sheets A and B have tear-resistant creases between them and the edges of the two openings on the drinking spout, making it easy for the user to poke the paper sheets open with their fingers.
[0006] Preferably, an annular groove is provided at the outer edge of the outer cover, and an annular protrusion and an annular drinking spout are formed on both sides of the annular groove. The design of the annular groove has the function of collecting residual liquid and preventing liquid from splashing out when drinking.
[0007] Preferably, a sealing ring is provided on the inner lid surface to enhance the seal between the lid and the cup mouth and prevent beverage leakage. A raised ring is provided at the bottom of the inner lid surface to generate friction with the cup wall, further ensuring a tight fit between the lid and the cup mouth.
[0008] This utility model provides a flip-top paper cup lid. It has the following beneficial effects:
[0009] (1) This utility model greatly improves the anti-overflow performance of beverages through its unique flip-top design and sealing structure, and achieves hygiene and convenience during the drinking process. The flip-top paper cup lid is not only suitable for hot drinks, but also for cold drinks, and has a wide range of applications.
[0010] (2) By setting up a drinking tip structure, this utility model utilizes the lever principle. Under the flexible and elastic action of the coated paper, the two coated paper pieces can form a natural seal in the opening due to the soft elastic material properties of the paper itself. The one-press-one-flip design makes the drinking process more convenient. Attached Figure Description
[0011] Figure 1 This is a perspective view of the outer cover structure of this utility model;
[0012] Figure 2 This is a perspective view of the inner cover structure of this utility model;
[0013] Figure 3 This is a cross-sectional view of the overall structure of this utility model;
[0014] Figure 4 This utility model Figure 3 A magnified view of A in the middle.
[0015] In the figure: outer cover 21, inner cover 22, drinking spout 23, air hole 24, drinking spout structure 25, annular groove 31, annular protrusion 32, annular drinking spout edge 33, protrusion ring 34, sealing ring 35, micro-protrusion structure 36, coated paper A 37, coated paper B 38. Detailed Implementation
[0016] 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.
[0017] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0018] Based on the existing problems of poor sealing performance and inconvenience in drinking from paper cup lids, the present invention provides a preferred embodiment of a flip-top paper cup lid, for example... Figure 1-4 As shown: A flip-top paper cup lid includes a lid body, which is divided into upper and lower parts. The upper part is the outer lid surface 21, which has an inner flip-edge structure for sealing. The lower part is the inner lid surface 22, which fits tightly with the cup mouth to effectively prevent beverage spillage. The lid body is provided with a drinking spout 23 and an air hole 24, wherein the air hole 24 and the drinking spout 23 are located on the same horizontal line to ensure pressure balance during drinking and allow the beverage to flow out smoothly. The drinking spout 23 has two openings, forming a drinking tip structure 25 based on the lever principle in the middle. The outer wall of the lid body is designed with a slightly curved shape and has a slightly convex structure 36.
[0019] Two flexible, elastic coated paper sheets A37 and B38 are integrally connected to both sides of the drinking spout structure 25. They correspond to the two openings on the drinking spout 23 and are adapted to them. The outer edges of the coated paper sheets A37 and B38 have tear lines between them and the edges of the two openings on the drinking spout 23, making it easy for users to poke the paper sheets open with their fingers.
[0020] By incorporating the drinking spout structure 25, and leveraging the flexible elasticity of the coated paper, one-handed operation is achieved, making it convenient for users to drink while on the go. The design of the annular groove 31 ensures that any overflow of beverage around the drinking spout 23 quickly flows into the groove, preventing spillage during drinking.
[0021] An annular groove 31 is provided at the outer edge of the outer cover 21, and an annular protrusion 32 and an annular drinking spout 33 are formed on both sides of the annular groove 31. The design of the annular groove 31 is to collect residual liquid and prevent liquid from splashing out when drinking.
[0022] A sealing ring 35 is provided on the inner lid surface 22 to enhance the seal between the lid and the cup mouth and prevent beverage leakage. A raised ring 34 is provided at the bottom of the inner lid surface 22 to generate friction with the cup wall, further ensuring a tight fit between the lid and the cup mouth.
[0023] In use, the user presses down on the coated paper sheet to break the slit, allowing the two coated paper sheets to form a natural seal due to their soft elasticity. When the user stops pressing, the coated paper sheet quickly springs back to its original position. Then, pressing coated paper sheet A37 causes coated paper sheet B38 to open under the action of the drinking spout structure 25. By flipping coated paper sheet B38 open, one of the drinking spouts 23 is fully opened, allowing the consumer to easily drink the beverage. When drinking is no longer needed, i.e., when the upper lip is no longer in contact with the drinking spout 23, coated paper sheet B38 automatically returns to its original position due to its soft elasticity, closing the opening of the drinking spout 23. Coated paper sheet A37, under the action of the drinking spout structure 25, naturally returns to its initial state, ensuring the lid's seal and preventing beverage spillage.
[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A flip-top paper cup lid, comprising a lid body, characterized in that: The lid is divided into upper and lower parts. The upper part is the outer cover (21) and the lower part is the inner cover (22). The lid is provided with a drinking spout (23) and an air hole (24). The air hole (24) and the drinking spout (23) are located on the same horizontal line. The drinking spout (23) has two openings, so that a drinking spout structure (25) based on the lever principle is formed in the middle. The outer wall of the lid is designed with a slightly curved shape and has a slightly convex structure (36).
2. The flip-top paper cup lid according to claim 1, characterized in that: Two flexible, soft, elastic coated paper sheets A (37) and B (38) are integrally connected to both sides of the drinking spout structure (25), corresponding to the two openings on the drinking spout (23) and fitting them. The outer edges of coated paper sheets A (37) and B (38) have tear-resistant lines between them and the edges of the two openings on the drinking spout (23).
3. The flip-top paper cup lid according to claim 1, characterized in that: An annular groove (31) is provided at the outer edge of the outer cover (21), and an annular protrusion (32) and an annular drinking spout (33) are formed on both sides of the annular groove (31).
4. A flip-top paper cup lid according to claim 1, characterized in that: A sealing ring (35) is provided on the inner cover surface (22), and a raised ring (34) is provided at the bottom of the inner cover surface (22).