Hull Cleaning Brush With Interchangeable Base Materials
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Solution Overview
Problem
Conventional cleaning brushes for hulls often damage antifouling paint and require complex replacement processes, especially when dealing with varying levels of biofouling.
Innovation Solution
A cleaning brush design featuring a rotation body part with interchangeable block-shaped or strip-shaped base materials, which can be easily mounted and replaced using a fixing part and groove system, minimizing damage to antifouling paint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If filament-shaped base materials are used to remove hard-shelled organisms, then cleaning effectiveness is improved, but damage to antifouling paint increases
Solution Approach 1:
The base material is divided into multiple protrusions rather than a single filament structure. Each protrusion has a rounded tip that distributes cleaning force, reducing paint damage while maintaining effectiveness against hard-shelled organisms. The segmented structure allows controlled impact application.
Solution Approach 2:
Instead of using sharp filament tips that concentrate force on small areas (causing paint damage), the invention uses rounded protrusion tips that distribute force over larger areas. This inverts the approach from point-contact to surface-contact cleaning, reducing harmful effects while maintaining cleaning capability.
2Reliability
If specialized equipment is used to implant base materials into rotating disks, then base material fixation is improved, but replacement complexity increases
Solution Approach 1:
The base material is designed as a separable component with a distinct fixation structure (protrusions fitting into grooves). This segmentation allows the base material to be independently replaced without replacing the entire cleaning brush assembly, simplifying maintenance while ensuring reliable fixation through the groove-protrusion interface.
Solution Approach 2:
The fixation system transitions from a permanent implantation design to a dynamic, reversible connection. The groove-protrusion interface allows for easy insertion and removal, enabling base materials to be replaced by simply detaching and reattaching components rather than using specialized implantation equipment.
3Object-affected harmful factors
If block-shaped base materials are used instead of filament-shaped, then paint damage is reduced, but adaptability to different biofouling levels decreases
Solution Approach 1:
Different regions of the cleaning brush are equipped with base materials of varying properties. The protrusions can be made from different materials or have different geometries to handle specific types of biofouling, while the overall block-shaped structure maintains low paint damage. This local differentiation provides adaptability without sacrificing the paint-protection benefit of the block shape.
Solution Approach 2:
The block-shaped base material with multiple protrusions serves multiple functions simultaneously: the rounded tips protect paint while the collective protrusion structure effectively removes various types of biofouling. The design combines the paint-protection advantage of block shapes with the cleaning effectiveness needed for different fouling levels.
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 solution allows for efficient removal of contaminants across different biofouling levels while minimizing damage to antifouling paint and simplifying the replacement process of base materials.
Implementation Method 1
remove a contaminant on a surface of a hull, the contaminant including marine organisms such as slime, marine plants, barnacles, or mussels, by using pressure and friction from the rotation of the base material
Data Source
AI summary
A cleaning brush for a hull according to embodiments includes: a base material; a fixing part coupled to a lower end part of the base material and having a fixing protrusion that protrudes from an outside of the base material; and a rotation body part having at least one fixing groove into which the fixing part coupled to the base material is to be inserted, in which the base material is replaceable.


