Cosmetic Inner Container Venting for Smooth Hermetic Cap Sealing
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Solution Overview
Problem
Existing cosmetic containers face difficulties in hermetic sealing due to air entrapment between the inner cap and intermediate ring, making it hard to close or open the inner cap, which affects consumer experience.
Innovation Solution
A cosmetic cartridge with an exhaust passage formed between the sealing ring and the intermediate ring allows air to be exhausted or introduced, facilitating smooth opening and closing of the inner cap while maintaining hermetic sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing ring is in interference fit with the intermediate ring to ensure hermetic sealing, then sealing reliability is improved, but air entrapment occurs making it difficult to close or open the inner cap
Solution Approach 1:
The sealing interface is segmented into two functional zones: a hermetically attached region with interference fit for sealing, and an exhaust passage region with clearance for air evacuation. This segmentation allows the sealing ring to simultaneously achieve reliable sealing and facilitate air exhaust during cap operation.
Solution Approach 2:
Different regions of the sealing ring have different fit characteristics with the intermediate ring. The hermetically attached region has interference fit for sealing, while the exhaust passage region has clearance fit for air flow. This local differentiation of quality enables both sealing reliability and ease of operation.
2Object-affected harmful factors
If the sealing ring completely seals the intermediate ring to prevent contamination, then hermetic sealing is improved, but air cannot enter or exit the intermediate ring causing operational difficulty
Solution Approach 1:
The sealing ring's interface with the intermediate ring is divided into a hermetically sealed region and an exhaust passage region. The sealed region prevents contamination by maintaining hermetic sealing, while the exhaust region allows air to enter and exit during cap operation, resolving the contradiction between contamination prevention and operational ease.
Solution Approach 2:
The exhaust passage acts as an intermediary channel that allows air to pass through the sealing ring structure. This intermediary pathway enables air exchange necessary for cap operation while the rest of the sealing interface maintains hermetic sealing to prevent contamination.
Data Source
Figure 1
Figure 2
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AI summary
The present disclosure provides a cosmetic cartridge and a cosmetic container. The cosmetic cartridge includes: an inner cap (10), an intermediate ring (30), and a powder pan (40), where the powder pan (40) is fixedly disposed in the intermediate ring (30); a sealing ring (20) is fixedly disposed on the inner cap (10); the sealing ring (20) is in interference fit with the intermediate ring (30), such that the sealing ring (20) can seal the intermediate ring (30); an exhaust passage is formed between the sealing ring (20) and the intermediate ring (30); when the inner cap (10) is closed onto the intermediate ring (30), the exhaust passage is configured to exhaust air from the intermediate ring (30); and when the inner cap (10) is opened, the exhaust passage is configured to allow outside air to enter the intermediate ring (30). The exhaust passage is formed between the sealing ring (20) and the intermediate ring (30), such that air can be exhausted from the intermediate ring (30) through the exhaust passage or can enter the intermediate ring (30) through the exhaust passage, thereby facilitating smooth opening and closing of the inner cap (10) to improve consumer experience.