Pipe Cleaning Brush With Collapsible Handle And Wavy Bristles

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Solution Overview

Problem

Existing pipe cleaning brushes for clothes dryer air ducts are difficult to hold and use, as they require limited hand rotation and have rigid, easily deformed bristles, and their fixed handles occupy space, making them hard to package and transport.

Innovation Solution

A pipe cleaning brush design featuring a handle with pivotally connected branch rods that allow for easy rotation and collapse, embedding into a fixed handle for compact storage, and wavy-shaped plastic bristles for enhanced durability and cleaning efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the handle and flexible connecting portion are integrated, then the brush body can only move forward and backward, but the user cannot rotate the brush body easily

Engineering Contradiction:
Improveease of rotationVSAvoidhandle structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The handle is divided into a fixed handle portion and a rotatable plug-connected portion that can be separated. The plug-connected portion includes first and second branch rods that can pivot relative to each other, allowing independent rotation while the fixed handle remains stable for packaging.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The plug-connected portion is designed to be rotatable relative to the fixed handle, transforming the static integrated structure into a dynamic one. The pivotal connection between branch rods enables rotation motion while maintaining structural integrity during cleaning operations.

Inventive Principle:
Principle #15Dynamics

2Strength

If round plastic bristles with straight rod shape are used, then the brush body lacks strength, but deformed bristles cannot be restored

Engineering Contradiction:
Improvebrush body strengthVSAvoidbristle restoration
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The bristles are changed from straight rod shape to wavy shape with curved profiles. This curvature provides structural strength while the elastic material allows the wavy bristles to return to their original shape after deformation, solving both strength and restoration requirements.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The bristle geometry is changed from straight to wavy by modifying the shape parameters. The wavy configuration increases structural rigidity while maintaining elastic recovery capability, improving both strength and reliability simultaneously.

Inventive Principle:
Principle #35Parameter changes

3Volume of moving object

If a fixed handle is used, then the overall volume is large, but packaging and transportation become difficult

Engineering Contradiction:
Improveoverall volumeVSAvoidpackaging convenience
Core Design Contradiction:
Volume of moving objectVSEase of manufacture

Solution Approach 1:

The handle is segmented into a fixed handle portion and a removable plug-connected portion. When not in use, the plug-connected portion can be detached and the branch rods collapsed, significantly reducing the overall volume for packaging and transportation while maintaining a stable fixed handle during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first and second branch rods can be pivoted to collapse into a compact configuration that nests within or alongside the fixed handle, minimizing the occupied space during storage and transport while preserving full functionality during use.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 brush can be easily rotated and collapsed for efficient cleaning and storage, with wavy bristles that maintain strength and prevent deformation, improving cleaning efficiency and extending the brush's service life.

Implementation Method 1

a plurality of wavy-shaped plastic bristles is fixed in series with the elastic body... a strength of a brush body of the pipe cleaning brush can be increased without being easily deformed

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

the first branch rod and the second branch rod are pivoted to each other to be opened or collapsed... the second branch rod or the first branch rod is rotated to simultaneously drive the fix handle, the connecting unit, and the cleaning unit 4 to rotate

Methodology Applied
Scientific EffectMechanical rotation: Torque

Data Source

PatentUS11425988B2Pipe cleaning brush
Publication Date: 2022.08.30 SAM ROCK INDAL
  • US11425988B2 patent drawing
  • US11425988B2 patent drawing
  • US11425988B2 patent drawing

AI summary

A pipe cleaning brush which comprises a cleaning unit including a brush body and an elastic body, a connecting unit including a flexible strip, and a handle unit including a fixed handle and a plug-connected part that are separated and embedded with each other. The plug-connected part includes a first branch rod and a second branch rod. One end of the first branch rod and one end of the second branch rod are pivoted to each other to be opened or collapsed, and the first branch rod or the second branch rod is embedded and positioned above the fixed handle, so that the second branch rod or the first branch rod is rotated and to simultaneously drive the connecting unit and the cleaning unit to rotate.