双内扣合线杯盖
The double-interlocking lid design utilizes elastic grooves and a fitting surface to tightly adhere to the inner wall of the cup, achieving a double seal in conjunction with the first and second interlocking lines. This solves the leakage problem of existing paper cup lids when handling hot or cold drinks, resulting in a highly efficient and environmentally friendly lid design.
Patent Information
- Application Number
- CN202521332681.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-17
- Estimated Expiration
- 2035-06-27
AI Technical Summary
Existing paper cup lids are prone to gaps when hot drinks expand or cold drinks condense, leading to leakage. Adding silicone gaskets increases costs and is not environmentally friendly.
The cup lid features a double inner snap-fit design, including first and second snap-fit lines on the inner side of the groove and a fitting surface, forming a double sealing barrier. The elastic wavy groove and inclined fitting surface are tightly attached to the inner wall of the cup, and the first snap-fit line is engaged with the flange to achieve a double seal.
It improves the sealing performance between the lid and the cup body, prevents beverage spillage, reduces costs and meets environmental protection requirements, and achieves environmental goals through biodegradable materials.
Smart Images
Figure CN224511973U_ABST
Abstract
Claims
1. Double inner thread cup closure comprising a cup closure (1) for enclosing a cup body (2) to seal a contained beverage, wherein The outer edge of the cup lid (1) is also provided with a groove (11) for engaging with the flange (21) at the top of the cup body (2) to form a snap-fit assembly. The groove (11) has a first snap-fit line (111) on the inner side of its edge for engaging with the outer side of the flange (21) of the cup body (2). The groove (11) has a second snap-fit line (113) on the inner side of its inlet for engaging with the inner wall of the cup body (2). The groove (11) has a contact surface (112) above the second snap-fit line (113) that engages with the inner wall of the cup body (2).
2. Double internal thread cup lid (1) according to claim 1, characterized in that: The first fastening line (111) has an arc-shaped cross-section and a thickness of 0.8-1.2 mm.
3. The dual inner-buckle wire cup lid (1) according to claim 1, characterized in that: The cup body (2) is gradually changing from bottom to top, and its diameter gradually increases from bottom to top, so that its inner wall forms an inclined surface. The draft angle of the mating surface (112) is also inclined, so that the mating surface (112) and the inclined surface of the cup body (2) fit together tightly.
4. The dual inner-buckle wire cup lid (1) according to claim 1, characterized in that: The groove (11) has a wavy linear structure, which is used to increase the elasticity of the groove (11).
5. The dual inner-buckle wire cup lid (1) according to claim 4, characterized in that: The bottom of the groove (11) is also provided with a flared opening (12).
6. The dual inner-buckle wire cup lid (1) according to claim 1, characterized in that: A water outlet (13) is provided on one side of the top surface of the cup lid (1), and an air hole (14) is provided on the other side of the top surface of the cup lid (1).
7. The dual inner-buckle wire cup lid (1) according to claim 6, characterized in that: The top of the cup lid (1) is also provided with a groove for placing the cup body (2) on the cup lid (1).
8. Double inner snap-on thread cup lid (1) according to any one of claims 1-7, characterized in that: The cup lid (1) is made of biodegradable material.
Citation Information
Patent Citations
Disposable paper cup cover
CN201431246Y