Replaceable Cosmetic Jar Sealing for Reusable Refill Stability
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Solution Overview
Problem
The existing cosmetic jars are discarded after the cream is used up, leading to waste of packaging materials, particularly high-molecular polymers that are non-degradable and environmentally harmful.
Innovation Solution
A replaceable cosmetic jar design featuring a degradable inner bottle with anti-slip ribs and a cap sealing assembly, allowing the inner bottle to be placed in a top-opened outer bottle, which can contain both cream and powder cosmetics, and includes features like anti-slip ribs, fetching grooves, and a sealing film for secure sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the whole jar is discarded after the cosmetic is used up, then the jar structure is simple and easy to manufacture, but the packaging material is wasted and causes environmental pollution
Solution Approach 1:
The cosmetic jar is divided into two separate parts: a reusable outer jar and a replaceable inner bottle. The inner bottle contains the cosmetic product and can be removed and replaced when empty, while the outer jar remains for continued use. This segmentation allows the packaging structure to be simple and easy to manufacture while reducing material waste, as only the inner bottle needs to be discarded after one use.
2Strength
If the high-molecular polymer jar is used, then the jar has good durability and protection, but the material cannot be degraded and pollutes the environment
Solution Approach 1:
The jar system is segmented into an outer jar that provides durable protection and an inner bottle that contains the cosmetic. This allows the durable outer jar to be reused multiple times, reducing the frequency of disposal and thereby reducing environmental pollution from non-degradable materials.
Solution Approach 2:
The design enables selective discarding of only the inner bottle after the cosmetic is consumed, while the outer jar is recovered and reused for subsequent cosmetic refills. This minimizes the amount of non-degradable material that needs to be discarded, thereby reducing environmental pollution while maintaining the protective function of the durable outer jar.
3Stability of the object's composition
If the replaceable inner bottle is placed in the outer bottle with anti-slip ribs, then the placement is stable and secure, but the device structure becomes more complex
Solution Approach 1:
Anti-slip ribs are added only at specific locations where the inner bottle contacts the outer jar, rather than making the entire jar structure complex. This localized addition provides the necessary stability and secure placement while keeping the overall device structure simple and easy to manufacture.
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 allows for easy replacement and secure containment of cosmetics, reducing waste by using degradable materials and ensuring stable placement and sealing of the inner bottle within the outer jar.
Implementation Method 1
anti-slip ribs are provided on the limit groove
Implementation Method 2
the dustproof cap presses an upper edge of the edge-pressing ring through the cap sealing assembly to seal an opening of the replaceable inner bottle
Implementation Method 3
The replaceable inner bottle is made of a degradable material
Data Source
Figure 1~2
Figure 3
AI summary
A replaceable cosmetic jar includes a dustproof cap (1), a cap sealing assembly (2), a replaceable inner bottle (3), and an outer bottle (4), where the replaceable inner bottle (3) is placed in the outer bottle (4); the replaceable inner bottle (3) includes a bottle body (31) and a bearing ring (32); the bearing ring (32) is provided at a top of the bottle body (31); a top opening of the bottle body (31) extends outward to form an edge-pressing ring (33); an annular limit groove (41) matching the bearing ring (32) is formed in a top of the outer bottle (4); anti-slip ribs (42) are provided on the limit groove (41); a lower edge of the edge-pressing ring (33) is placed at a top opening of the outer bottle (4); and when the dustproof cap (1) covers the top opening of the outer bottle (4), the dustproof cap (1) presses an upper edge of the edge-pressing ring (33) through the cap sealing assembly (2) to seal an opening of the replaceable inner bottle (3). With a simple structure, and convenience in use, the replaceable inner bottle (3) is directly placed in the outer bottle (4) through the anti-slip ribs (42), thereby meeting the common requirements in use. In cooperation with the corresponding cap sealing assembly (2), the present disclosure can contain not only the cream cosmetic, but also the powder cosmetic, thereby meeting the requirements of various users.