Replaceable Lipstick Tube Mechanism with Segmented Base
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Solution Overview
Problem
Traditional lipstick tubes are non-replaceable, leading to environmental waste and increased consumer shopping costs as the entire tube is discarded when the lipstick is used up, necessitating the purchase of a new complete tube.
Innovation Solution
A lipstick tube with a replaceable mechanism featuring a detachable base and mechanism design, allowing consumers to easily separate and combine components, enabling the reuse of the base and cover, and facilitating the installation of new mechanisms by a 'pulling out' and 'pressing down' operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the base and mechanism are fixedly connected in a traditional lipstick tube, then the structural stability is improved, but the environmental friendliness and cost-effectiveness deteriorate because the entire tube must be discarded when the lipstick is used up
Solution Approach 1:
The lipstick tube is divided into two separable parts: a reusable base and a replaceable mechanism. The base includes a base casing with a receiving cavity, while the mechanism includes a barrel, fork, spiral component, and aluminum shell. This segmentation allows the base to be retained and reused after the mechanism is consumed, reducing waste and environmental impact while maintaining structural stability during use.
2Stability of the object's composition
If the base and mechanism are fixedly connected, then the structural integrity is improved, but the ease of operation deteriorates because consumers cannot easily separate and reuse components
Solution Approach 1:
The connection between the base and mechanism is segmented into detachable engagement features. The fork includes an engagement portion with anti-rotation teeth that mate with corresponding features on the base, allowing secure attachment during use but easy separation when needed. This enables consumers to easily pull out the used mechanism and install a new one while maintaining structural integrity during normal operation.
Solution Approach 2:
The engagement mechanism transitions from a static fixed connection to a dynamic detachable connection. The anti-rotation teeth and engagement features allow the mechanism to be securely held during use but easily removed by applying force in the pulling direction, providing operational flexibility and ease of replacement.
3Ease of manufacture
If the entire lipstick tube is discarded when the lipstick is used up, then the manufacturing simplicity is maintained, but the shopping costs for consumers increase
Solution Approach 1:
By segmenting the lipstick tube into a reusable base and a consumable mechanism, consumers only need to purchase the mechanism when the lipstick is used up, rather than the entire tube. This reduces shopping expenses significantly while the base can be reused multiple times with different mechanisms.
Solution Approach 2:
The base is designed as a universal platform that can accommodate multiple different mechanisms. The engagement features and receiving cavity are designed to work with various mechanism types, allowing consumers to reuse the same base with different lipstick mechanisms, further reducing overall shopping costs.
Data Source
AI summary
A lipstick tube with a replaceable mechanism includes a base and the mechanism. The mechanism includes a barrel, a fork, a spiral and an aluminum shell that are coaxially sleeved sequentially from inside out. A barrel engaging member integrally protrudes from an outer side wall of the barrel. A hollow guide groove extending in an axial direction of the fork is formed in the fork. A spiral guide groove extending in an axial direction of the spiral component and spiraling upward is formed in an inner side wall of the spiral component. The barrel engaging member is configured for passing through the hollow guide groove and then being embedded into and sliding in the spiral guide groove. The spiral component is configured for axially stopping and circumferentially rotating relative to the fork. The aluminum shell is configured for being fixed in position relative to the spiral component.