Silicone Baby Bottle Fastening Structure for Leak-Tight Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional silicone baby bottles face issues with compromised water-sealing capabilities due to the inherently soft nature of the material, leading to potential milk leakage during feeding.
Innovation Solution
A silicone baby bottle design featuring a body that tapers from a bottom surface to a top end with a gradually decreasing cross-sectional width, incorporating a detachable nipple part secured by a semi-circular fastening mechanism with interlocking protrusions and grooves, enhancing the bonding strength between the bottle body and nipple part, and using ultra-pure silicone with less than 0.4% volatile organic compounds (VOCs).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If silicone material is used for the baby bottle body and nipple, then the material is safe for infants (does not release endocrine disruptors) and provides skin-like flexibility, but the water-sealing capability is compromised due to the inherently soft nature of the material
Solution Approach 1:
The fastening mechanism is divided into multiple independent components: a first fastening ring with upper and lower fastening protrusions, and a second fastening ring with corresponding structures. This segmentation allows each component to contribute to the sealing function independently, with the protrusions and grooves working together to create multiple sealing points that compensate for the softness of the silicone material.
Solution Approach 2:
The fastening rings are designed with specific local features including upper and lower fastening protrusions with inclined surfaces, and corresponding grooves. These localized structural variations create interlocking engagement points that enhance sealing capability in critical areas while maintaining the overall flexibility of the silicone material.
2Reliability
If a rigid fastening ring is used to ensure water-sealing, then the seal integrity is improved, but the bonding strength between the soft silicone body and nipple is insufficient
Solution Approach 1:
The fastening mechanism combines rigid-looking structural features (fastening rings with protrusions and grooves) with the flexible silicone material. The interlocking design creates a composite effect where the rigid-appearing fastening structures provide sealing integrity while the silicone material provides flexibility and bonding strength, achieving both requirements simultaneously.
Solution Approach 2:
The fastening protrusions and grooves are pre-designed with specific inclined surfaces that guide the assembly process. The upper fastening protrusion with downward-sloping first inclined surface and the lower fastening protrusion with upward-sloping second inclined surface create a predetermined engagement path that ensures proper alignment and strong bonding before final assembly is complete.
3Ease of manufacture
If the body is made with a smooth uniform structure, then manufacturing is easier, but the bonding surface area with the nipple is insufficient
Solution Approach 1:
The fastening mechanism extends the bonding interface into a third dimension by creating protrusions that reach into corresponding grooves. This vertical interlocking adds a dimensional aspect to the bonding surface, increasing the effective bonding area beyond what would be achieved by a simple surface-area increase, while still maintaining manufacturing simplicity through the use of standard molding techniques.
Data Source
AI summary
Provided is a silicone feeding bottle with enhanced water-sealing properties where the upper portion is open for content insertion, while the body gradually decreases in cross-sectional width from the bottom to the top, forming a gentle curvature resembling a trumpet, conch shell, or similar shape, thus comprising a body characterized by a spiral design. Additionally, the feeding bottle includes a nipple portion detachably attached to the body, along with a coupling means for coupling the nipple portion to the body. The basal coupling part of the nipple portion has a cross-sectional shape resembling the numeral “¬,” comprising a basal coupling protrusion that mates with the upper fastening protrusion, a basal horizontal plane extending horizontally from the upper fastening protrusion, and a basal vertical plane extending perpendicularly from the basal horizontal plane.