一种防漏婴儿水杯
By designing an anti-accidental opening component in the baby water cup, using a return spring to drive the limit block to engage with the slot, combined with a sealing ring and a V-shaped valve spout, the problem of the baby water cup lid being easy to loosen and open is solved, achieving efficient leak prevention and safe use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POLYBELL(GUANGZHOU) LTD
- Filing Date
- 2025-08-30
- Publication Date
- 2026-07-17
AI Technical Summary
The lids of existing baby cups are connected to the cup body by threads, lacking an anti-accidental opening structure. This makes them easy to loosen and open when the baby grasps, bites, or when the cup is tilted, causing water leakage and affecting the user experience and safety.
The design incorporates an anti-accidental opening component, utilizing a return spring to drive the limit block to engage with the limit slot, restricting the rotation of the cup lid. Combined with a sealing ring and a V-shaped valve nozzle, this prevents the cup lid from opening accidentally and enhances leak-proof performance.
It effectively prevents the cup lid from opening accidentally when the baby grasps or bites it, avoids leakage, improves safety and leak-proof reliability, and is simple and convenient to operate.
Smart Images

Figure CN224505129U_ABST
Abstract
Claims
1. A leak-proof baby water cup, comprising a cup body (1), a cup lid (2), and an outer protective cover (15), characterized in that: The upper end of the cup body (1) is fixedly connected to a threaded connection port (4), the inner wall of the cup lid (2) is provided with an internal thread (5), and an anti-misoperation component (3) is provided between the cup body (1) and the cup lid (2). The anti-misoperation component (3) includes a fixed collar (7) and a movable collar (8). The upper end of the movable collar (8) is fixedly connected to multiple limiting blocks (9), the lower end of the cup lid (2) is provided with multiple limiting slots (10), the outer wall of the fixed collar (7) is provided with multiple spring grooves (11), and a connecting block (12) is slidably provided inside each of the multiple spring grooves (11). A return spring (13) is fixedly connected between the inner wall of the opposite end of each of the multiple connecting blocks (12) and the corresponding spring groove (11).
2. The leak-proof baby water cup according to claim 1, wherein: Multiple connecting blocks (12) are fixedly connected to the movable collar (8), which is movably sleeved outside the fixed collar (7), and the fixed collar (7) is fixedly sleeved outside the cup body (1).
3. The leak-proof baby water cup of claim 1, wherein: The threaded connection (4) is threadedly engaged with the internal thread (5), and a sealing ring (6) is provided on the upper inner wall of the cup lid (2).
4. The leak-proof baby water cup of claim 1, wherein: The upper end of the cup lid (2) is fixedly connected to a V-shaped valve nozzle (14).
5. The leak-proof baby water cup of claim 1, wherein: Multiple return springs (13) are movably arranged within corresponding return grooves (11).
6. The leak-proof baby water cup of claim 1, wherein: Multiple limiting blocks (9) are engaged in the corresponding limiting slots (10).
7. The leak-proof baby water cup of claim 1, wherein: The outer protective cover (15) is fitted onto the cup lid (2).
8. The leak-proof baby water cup of claim 1, wherein: Handles (16) are fixedly connected to both sides of the outer wall of the cup lid (2).