Spout Cap Valve Segmentation for Leak Prevention
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Solution Overview
Problem
Existing pouring caps for containers are complex to manufacture due to their design features intended to prevent leaks, which compromise their functionality and ease of use.
Innovation Solution
A simplified pouring cap design featuring a hollow body with separate air and liquid channels, a push-button operated valve with a stem, and an elastic element that switches between closed and open positions based on pressure, facilitating manufacturing and user operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex leak prevention features are added to the pouring cap, then reliability is improved, but device complexity increases and ease of manufacture deteriorates
Solution Approach 1:
The internal cavity is divided into a first cavity for receiving the push button and a second cavity for receiving the valve, with a partition wall separating them. The air passage and liquid passage are also segmented and spatially separated, with the air passage extending through the partition wall. This segmentation allows independent optimization of each component's function while maintaining overall simplicity.
Solution Approach 2:
The push button and valve are integrated as a single assembly where the push button directly actuates the valve stem. The valve head is integrated with the sealing element, and the entire valve assembly is received within the hollow body structure. This merging reduces the number of separate components and simplifies manufacturing.
2Reliability
If complex leak prevention features are added to the pouring cap, then reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The air passage and liquid passage are spatially segmented and separated within the hollow body, with the air passage extending through the partition wall. This segmentation allows for simpler molding processes compared to integrated complex valve systems, as each passage can be formed independently during manufacturing.
Solution Approach 2:
The hollow body serves multiple functions: it contains both the push button and valve, provides structural support, creates the spout for liquid dispensing, and houses the sealing mechanisms. This multi-functionality reduces the number of separate parts that need to be manufactured and assembled.
3Device complexity
If the valve stem passes through both air and liquid channels, then device complexity is reduced, but reliability may worsen due to potential liquid access to push button
Solution Approach 1:
The air passage and liquid passage are segmented and separated by a partition wall, with the air passage extending through the partition wall. This spatial segmentation ensures that even though the valve stem passes through both passages, liquid cannot access the push button because the passages are physically separated in different spatial zones.
Solution Approach 2:
The partition wall acts as an intermediary barrier between the air passage and liquid passage. It allows the air passage to extend through it while preventing liquid from crossing into the push button region, thus protecting the push button from liquid contamination while maintaining structural simplicity.
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 simplifies manufacturing while ensuring effective liquid dispensing without leaks, enhancing user experience and operational efficiency.
Implementation Method 1
an elastic element tends to bring the valve to the closed position when a pressure lower than a predetermined pressure is applied to the push button, and to allow the valve to return to the open position when a pressure greater than or equal to the predetermined pressure is applied to the push button
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
- Pouring cap intended to be fixed to the neck of a container. - The cap (1) comprises a hollow body (4) defining an actuation chamber (6), a supply chamber (7), an air inlet channel (8) opening into the supply chamber (7) and a liquid outlet channel (9) opening into the supply chamber (7), the cap (1) also comprising a valve (12) which can be in a closed position in which the valve (13) blocks the two channels (8, 9) and an open position in which the valve (13) does not block the two channels (8, 9), the valve (12) passing through the two channels (8, 9).