Replaceable Lip Cosmetic Container With Spiral Push-Out Refill
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Solution Overview
Problem
Existing lipsticks are disposable and contribute to environmental waste due to non-degradable packaging materials, and existing replaceable lipsticks require recycling of entire assemblies made from durable materials, leading to potential pollution if recycling is inefficient.
Innovation Solution
A replaceable lip cosmetic container with a guide member and push-out member system that allows easy assembly and disassembly of a degradable replacement device, comprising a push-out member with a spiral groove and connection boss for detachable installation, using degradable materials for the replacement device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cosmetic container is designed to be fully recyclable, then environmental sustainability is improved, but the container cannot be refilled with different cosmetic products
Solution Approach 1:
The container is divided into two separate components: a reusable outer container and a replaceable inner insert. The outer container is designed for recycling while the inner insert can be removed and replaced with different cosmetic formulations, allowing both recyclability and refillability to coexist.
Solution Approach 2:
The cosmetic product is extracted from a monolithic container structure and placed into a separate, removable inner insert. This allows the product to be easily removed and replaced while the outer container remains for recycling, separating the functions of product containment and product replacement.
2Adaptability or versatility
If a cosmetic container allows product removal and replacement, then product versatility is improved, but product contamination during removal may occur
Solution Approach 1:
The inner insert is nested within the outer container with precise fitment. The inner insert has a configuration that allows it to be securely received by and removed from the outer container in a controlled manner, minimizing exposure to contamination during the replacement process.
Solution Approach 2:
The inner insert is pre-configured with features such as rim structures and engagement surfaces that guide its insertion and removal. The outer container is pre-formed with corresponding receiving structures that ensure proper alignment and minimize contamination risk before the actual product transfer occurs.
3Reliability
If an inner insert is designed to fit within an outer container, then product containment is improved, but manufacturing complexity increases
Solution Approach 1:
The inner insert incorporates localized engagement features such as rims, flanges, or interference-fit surfaces at specific locations to ensure secure containment. Rather than complicating the entire structure, only specific local areas are designed with enhanced containment features where needed.
Solution Approach 2:
The inner insert and outer container are designed with asymmetric engagement features that provide secure containment in the intended orientation while simplifying the overall structure. The asymmetric design allows for easy identification of correct insertion orientation and ensures proper fit without requiring complex symmetric mechanisms.
Data Source
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AI summary
A replaceable lip cosmetic container includes a top cover (1), a tube body (2), a guide member (3) and a rotating seat (4), and further includes a push-out member (5); an inner wall of the tube body (2) is provided with a spiral groove (21); the guide member (3) is provided with a guide groove (31) in an axial direction; an outer wall of the push-out member (5) is provided with a spiral rod (51), the push-out member (5) is sleeved in the guide member (3), and the spiral rod (51) penetrates through the guide groove (31) and cooperates with the spiral groove (21) to form a spiral pair; the push-out member (5) moves along the guide groove (31) to be located at a storage position, a use position and a replacement position; the guide groove (31) is provided with a storage groove (32), a limit groove (33) and a stop groove (34) corresponding to the above positions, respectively; and a thread lead angle of the spiral groove (21) is greater than or equal to an equivalent friction angle of the spiral pair.