Replaceable Cosmetic Bottle Assembly for Brush and Inner Bottle Reuse
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Solution Overview
Problem
Existing cosmetic pens with replaceable material bottles waste resources as the bristles are easily damaged or deformed, necessitating the disposal of the entire pen despite functional outer parts.
Innovation Solution
A cosmetic bottle design with replaceable internal components, including a cover, button, inner connecting member, brush rod, inner bottle, clamping ring, and outer bottle, allowing independent or simultaneous replacement of the brush rod and inner bottle, enhancing usability and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If cosmetic pens are designed with replaceable material bottles, then resource waste is reduced by reusing outer parts, but the entire pen must still be discarded when bristles are damaged or deformed
Solution Approach 1:
The cosmetic pen is divided into multiple independently replaceable segments: the outer bottle, inner bottle, and brush rod assembly. Each component can be replaced separately based on its condition and usage needs, allowing users to replace only the necessary parts rather than the entire pen.
Solution Approach 2:
The brush rod assembly is extracted as a separate replaceable unit from the inner bottle. This allows the brush rod to be replaced independently when bristles are damaged, while the inner bottle and outer bottle can continue to be reused, enhancing replacement flexibility.
2Ease of operation
If the brush rod is made replaceable, then usability is enhanced when bristles are damaged, but device complexity increases with multiple components
Solution Approach 1:
The brush rod assembly is designed as a separate module that can be easily detached and replaced. This segmentation allows users to replace only the brush rod when bristles are damaged, improving usability without requiring replacement of the entire pen.
Solution Approach 2:
The brush rod assembly is nested within the inner bottle, which itself is nested within the outer bottle. This nested structure allows for compact design while maintaining the ability to independently access and replace each component, balancing complexity with functionality.
3Adaptability or versatility
If multiple components are made replaceable, then adaptability to different user needs is improved, but manufacturing complexity increases
Solution Approach 1:
The pen is segmented into standardized components (outer bottle, inner bottle, brush rod assembly) that can be manufactured separately and assembled. This segmentation enables flexible configuration to meet different user needs while simplifying manufacturing through modular production.
Solution Approach 2:
The outer bottle and inner bottle are designed as universal components that can accommodate different brush rod assemblies. This universality allows users to mix and match components for different cosmetic purposes while reducing manufacturing complexity through standardized parts.
Data Source
AI summary
A cosmetic bottle with replaceable internal components includes a cover, two buttons, two inner connecting members, a brush rod, an inner bottle, a clamping ring, and an outer bottle that are coaxially arranged. A first button is placed in a first inner connecting member. The cover is sleeved on the first inner connecting member. One end of the rod body of the brush rod is provided with a head, and the other end of the rod body is fixedly connected to a brush head. The head of the brush rod is inserted into the first inner connecting member. An upper connecting portion of the inner bottle is detachably connected to the head of the brush rod, and a lower connecting portion of the inner bottle is fixedly connected to the clamping ring. A second inner connecting member is fixed in a lower opening end of the outer bottle.