Double-Layer Glass Feeding Bottle With Bottom Valve for Pressure Equalization
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Solution Overview
Problem
Existing feeding bottles face difficulties in milk intake due to negative pressure created inside the bottle during sucking, and there is a need for improved thermal insulation and convenience in feeding infants.
Innovation Solution
A double-layer glass feeding bottle with an integrally-formed bottom and a one-way valve at the inner liner's bottom for air exchange, forming a vacuum closed chamber for thermal insulation and preventing negative pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a single-layer glass feeding bottle is used, then the bottle structure is simple, but the thermal insulation effect is poor and the baby may be scalded
Solution Approach 1:
The feeding bottle is divided into two separate layers: an inner liner and an outer shell, both made of glass. The inner liner contains the milk while the outer shell provides thermal insulation. This segmentation allows the bottle to maintain good thermal insulation properties while keeping the structure relatively simple and safe for baby use.
2Ease of operation
If the inner liner and outer shell are not integrally formed at the bottom, then the manufacturing process is simpler, but negative pressure is created inside the bottle during sucking
Solution Approach 1:
The bottom portions of the inner liner and outer shell are integrally formed together through a firing process, creating a unified bottom structure. This merging allows air to pass through the integral bottom structure during feeding, equalizing pressure inside and outside the bottle, thereby preventing negative pressure formation and improving feeding convenience.
3Productivity
If a one-way valve is not provided at the bottom, then the structure is simpler, but negative pressure prevents the infant from getting milk
Solution Approach 1:
A one-way valve is integrated into the integral bottom structure at a lower position than the milk level. This valve automatically opens to allow air to enter the bottle when the baby sucks, equalizing pressure and enabling continuous milk flow. The valve closes automatically when not in use, preventing milk leakage. This self-regulating mechanism improves milk intake efficiency without requiring complex external control systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design provides effective thermal insulation, prevents scalding, and enhances feeding convenience by allowing air exchange without contaminating the milk, thus improving safety and ease of use.
Implementation Method 1
a vacuum closed chamber is formed between an inner side wall of the outer shell and the inner liner
Implementation Method 2
The double-layer bottle structure can provide an improved thermal insulation effect
Implementation Method 3
a one-way valve is provided inside the through hole. The one-way valve is configured for air exchange when drinking milk, thereby avoiding negative pressure inside the bottle while sucking
Implementation Method 4
The bottom of the inner liner and the bottom of the outer shell are fixedly connected by firing
Data Source
AI summary
A double-layer glass feeding bottle includes a bottle body, a first cap, a second cap, and a nipple. The first cap is threaded to an upper portion of a side wall of the bottle body. The nipple is fixedly connected to an inner side wall of the first cap. The second cap is provided at a top of the first cap. The bottle body includes an inner liner and an outer shell. The inner liner is provided inside the outer shell. A bottom of the outer shell is integrally formed with a bottom of the bottle body. A through hole is provided at the bottom of the outer shell. A one-way valve is provided inside the through hole.