Portable Pipe Dredging Machine with Segmented Protection Tubes
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Solution Overview
Problem
Existing portable drain cleaning machines lack safety features and effective protection mechanisms, making them unsafe and inefficient for cleaning drains, especially when dealing with serious pollution or larger diameters.
Innovation Solution
A portable drain cleaning machine with a flexible shaft advancing and retreating device, protection tubes, and a motor-driven drum system, equipped with a self-locking mechanism and a funnel-shaped flexible shaft, which includes a feed and retraction mechanism using torsion springs and bearings for safe and effective cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a flexible shaft driven by a hand electric drill is used for drain cleaning, then the device is simple and portable, but it is unsafe and ineffective for serious pollution
Solution Approach 1:
The protection tube is divided into multiple sections that can be connected together using joints, allowing the tube to be extended or reduced based on the cleaning depth requirements while maintaining safety protection throughout the flexible shaft
Solution Approach 2:
The protection tube serves as an intermediary component between the operator and the flexible shaft, providing a protective barrier that prevents direct contact with pollutants while allowing the flexible shaft to rotate and perform cleaning functions
2Reliability
If protection tubes are added to improve safety, then safety performance is enhanced, but device complexity increases
Solution Approach 1:
The protection tube is segmented into multiple connectable sections, allowing the system to maintain simplicity when shorter lengths are needed while providing extended protection when deeper cleaning is required, thus balancing safety enhancement with structural simplicity
Solution Approach 2:
The protection tube structure serves multiple functions: it protects the operator from pollutants, guides the flexible shaft, and can be extended or reduced based on requirements, thereby providing comprehensive safety protection without proportionally increasing complexity
3Productivity
If a larger drain cleaning machine is used for serious pollution, then cleaning effectiveness is improved, but the machine becomes bulky and difficult to use
Solution Approach 1:
The flexible shaft is nested within the protection tube, and the protection tube sections are nested within each other when connected, allowing the system to maintain a compact form when not in use while providing sufficient cleaning power when deployed
Solution Approach 2:
The flexible shaft provides dynamic adaptability by being able to bend and flex to reach into pipes and drains of various configurations, while the modular protection tube allows the system to be extended or reduced based on the specific cleaning task requirements
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 machine provides stable startup and operation, enhanced safety with an air switch and automatic reverse function, and improved cleaning efficiency with the flexible shaft's reinforced steel wire and funnel-shaped head, effectively navigating through tight spaces and preventing accidental triggering.
Implementation Method 1
a feed and retraction mechanism using torsion springs and bearings for safe and effective cleaning
Data Source
AI summary
A portable drain cleaning machine includes a flexible shaft advancing and retreating device, a casing device, a motor device, a drum device, a flexible shaft, protection tubes, and a joint. The flexible shaft advancing and retreating device is connected with the protection tube. The protection tubes are connected with the casing device. Both the motor device and the drum device are arranged in the casing device. The motor device cooperates with the drum device. The flexible shaft includes one end connected with the drum device and the other end arranged in a funnel-shaped structure. The flexible shaft penetrates the flexible shaft advancing and retreating device and the protection tube. Any adjacent two of the protection tubes are connected by the joint. The drum device includes a drum body, a flexible shaft disc, and a motor connecting plate. The flexible shaft disc is arranged on the drum body.