Rear bounce-on cup lid

By combining the lower cover, movable retaining ring, main cover, and upper cover into a structural design, and utilizing the hinged pivot and torsion spring linkage, the problem of the single linkage method of existing pop-up cup lids is solved, achieving more stable and convenient operation and sealing effect.

CN224522825UActive Publication Date: 2026-07-21NINGBO MEILIN HOUSEHOLD PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO MEILIN HOUSEHOLD PRODUCTS CO LTD
Filing Date
2025-09-05
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing pop-up cup lid has a relatively simple linkage mechanism for its corresponding components, making it inconvenient to assemble components such as the drinking spout, and lacking linkage structure designs such as crankshafts and connecting parts.

Method used

It adopts a combined structure design of lower cover, movable retaining ring, main cover and upper cover. Through the hinge of the rotating shaft and the linkage of torsion spring, combined with the linkage of crankshaft, lock cover and button, it can achieve complex linkage effect and enhance the linkage between components.

Benefits of technology

The operation stability and ease of assembly of the cup lid have been improved, the airtightness of the drinking spout and the spill prevention effect have been enhanced, and the operation process has been simplified.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224522825U_ABST
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Abstract

This utility model relates to a rear-mounted pop-up cup lid, addressing the technical problem of the lack of linkage structure design such as crankshaft and connecting parts in existing similar products. The key features are: the button on the cup lid is located at the button hole of the main cover at the rear of the upper cover's snap-fit ​​mechanism; the lower cover has a notch on the edge of the drinking spout at the ring-shaped base; a spring groove with an inner opening is provided on one side of the hinge groove at the notch; a movable retaining ring corresponds to and fits into the ring-shaped base of the lower cover; the movable retaining ring on the notch side is located inside the spring groove and hinge groove of the lower cover; the crankshaft groove of the movable retaining ring on the notch side is located below the hinge groove of the lower cover; the protruding pins at both ends of the crankshaft are engaged and fixed to the inner walls of the hinge groove above the crankshaft groove, allowing it to swing; one end of the crankshaft is inserted into the limiting groove on the rear button side of the crankshaft groove of the movable retaining ring; the other end of the crankshaft abuts against the edge of the locking cover outside the button in the hinge seat of the upper cover; and the spring in the spring groove of the lower cover abuts against the spring post on the outer diameter of the movable retaining ring.
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