Retractable Bristle Hair Brush with Oscillating Mist
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Solution Overview
Problem
Conventional water jet hair brushes are cumbersome, requiring continuous trigger pressing and separate handling of a large bottle, leading to muscle soreness and increased risk of bristle damage during storage and transport.
Innovation Solution
A mist spraying hair brush with retractable bristles, featuring a housing with through holes, a brush body with extending bristles, a restoring spring mechanism, and an oscillating mist spraying assembly, allowing for single-handed operation and compact storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If continuous trigger pressing is used to eject liquid, then liquid spraying function is maintained, but user hand muscle soreness occurs
Solution Approach 1:
The patent employs periodic action by using an oscillation assembly that automatically oscillates to eject liquid through multiple spouts. Instead of requiring continuous trigger pressing, the oscillation assembly performs periodic liquid ejection cycles, thereby eliminating the need for sustained manual pressure and preventing hand muscle soreness while maintaining continuous liquid spraying function.
2Ease of operation
If large size bottle and trigger sprayer are used for liquid storage and spraying, then liquid spraying function is achieved, but device size increases making storage inconvenient
Solution Approach 1:
The patent merges the bottle, trigger sprayer, and brush body into a single integrated housing structure. The liquid storage bottle is positioned within the housing, the oscillation assembly replaces the traditional trigger sprayer mechanism, and the brush body is combined with the housing. This consolidation eliminates separate components, significantly reducing overall device volume while maintaining liquid spraying functionality.
Solution Approach 2:
The patent applies nesting by placing the liquid storage bottle inside the housing structure, which itself contains the oscillation assembly and brush body. This nested arrangement allows compact packaging of multiple functional components within a small overall volume, making the device convenient for storage and portability while preserving all necessary functions.
3Ease of operation
If bristles are exposed during storage in a bag with objects, then brush functionality is maintained, but bristles may bend or break
Solution Approach 1:
The patent implements a dynamic bristle protection mechanism where the brush body can move relative to the housing. During storage or transport, the brush body retracts into the housing, providing protective enclosure for the bristles. When in use, the brush body extends outward to restore full brushing functionality. This dynamic movement allows the system to adapt between protection and functionality states.
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
Enables convenient, single-handed use without continuous trigger pressing, reduces muscle soreness, and protects bristles during storage and transport by retracting into the housing, preventing damage.
Implementation Method 1
Elastic potential energy is stored in the at least one restoring spring when the bended portion pushes the base of the brush body. When the bended portion leaves the base, the elastic potential energy is released to make the at least one restoring spring bounce to make the multiple bristles retract into the housing.
Implementation Method 2
liquid flowing from the injection portion to the oscillation assembly is atomized into spray when the oscillation assembly is oscillating
Data Source
AI summary
A mist spraying hair brush with retractable bristles includes a brush body, an actuating shaft, a mist spraying assembly, and a housing containing these components. The actuating shaft has a bended portion. When the actuating shaft is rotated and the bended portion pushes the brush body, multiple bristles of the brush body extend out of the housing. The mist spraying assembly has an electric oscillation assembly and an injection portion. The injection portion communicates with the oscillation assembly, such that liquid flows to the oscillation assembly via the injection portion and is atomized into spray. Then the spray flows out of the housing. The mist spraying hair brush with retractable bristles is small in size and is convenient in storage. Moreover, the multiple bristles can retract into the housing, so the multiple bristles will not be bended when carried in a bag full of objects.