Rotating Drum Pipe Cleaner with Nested Motor
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Solution Overview
Problem
Conventional pipe cleaning machines are too large and heavy, making them inconvenient for users to carry and increasing user fatigue.
Innovation Solution
A pipe cleaning machine design featuring a rotatable drum with an exposed portion, an electric motor, and a cable feeding assembly, where the drum's surface area exposed to air is between 40% and 100% of the total surface area, and a transmission mechanism connecting the electric motor to the cable, reducing the machine's dimensions and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the pipe cleaning machine is designed with conventional structure, then it has sufficient cleaning capability, but it becomes too large and heavy, increasing user fatigue and reducing portability
Solution Approach 1:
The electric motor is nested within the drum structure, with the motor shaft coinciding with the drum's rotation axis. The transmission mechanism is integrated inside the drum, allowing the drum to serve multiple functions while reducing overall machine size and weight.
Solution Approach 2:
The patent combines the drum, electric motor, and transmission mechanism into a single integrated assembly. The drum serves both as a storage component and as the rotation element driven by the motor, eliminating the need for separate motor housing and transmission housing.
2Ease of operation
If the pipe cleaning machine is designed with conventional structure, then it has sufficient cleaning capability, but it becomes too large, increasing device dimensions and reducing ease of operation
Solution Approach 1:
The cable feeding assembly is integrated within the drum structure, and the electric motor is nested inside the drum. This nesting arrangement significantly reduces the machine's external dimensions while maintaining all necessary functional components.
Solution Approach 2:
The patent utilizes the radial dimension by placing the motor and transmission mechanism within the drum's radial space rather than extending them externally. This dimensional reorganization reduces the machine's length and width while maintaining functionality.
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 design enhances portability and reduces user fatigue by minimizing the machine's size and weight while maintaining effective cleaning capabilities.
Implementation Method 1
an electric motor driving the cable to rotate
Implementation Method 2
a drum connected to the handle and rotatable with respect to the handle
Data Source
AI summary
A pipe cleaning machine includes: a handle for holding; a drum connected to the handle and rotatable with respect to the handle; a cable disposed in the drum; an electric motor driving the cable to rotate and including an electric motor shaft extending along a first axis; and a cable feeding assembly for feeding the cable. The drum includes an exposed portion, where the ratio of the surface area of the exposed portion to the total surface area of the drum is greater than or equal to 40% and less than or equal to 100%.