Segmented Purge Hose Coupling for Precise Nozzle Rotation
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Solution Overview
Problem
Existing devices for cleaning and inspecting flow channels with high pressure purge hoses are complex, prone to errors, and lack precision due to the need to rotate the entire hose, which introduces torsion and susceptibility to failure.
Innovation Solution
The purge hose is subdivided into sections connected by a coupling unit that allows high pressure purge water to flow, featuring a housing element and a hollow piston element supported by a spring, converting axial movement into rotation, enabling precise control of the channel nozzle without rotating the entire hose.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the entire purge hose is rotated to control the channel nozzle, then the nozzle can be positioned accurately, but the hose experiences torsion and twisting that reduces precision and increases complexity
Solution Approach 1:
The purge hose is divided into two separate sections: a stationary rear section and a rotatable front section. The coupling unit connects these sections, allowing only the front section to rotate while the rear section remains fixed. This segmentation eliminates the need to rotate the entire hose, reducing torsion and improving rotation precision.
Solution Approach 2:
The rotatable component (front hose section with channel nozzle) is extracted from the stationary part (rear hose section with hose holding device). This allows the rotatable part to be controlled independently through the coupling unit without affecting the stationary support structure, simplifying the overall system while maintaining precision.
2Ease of operation
If the entire purge hose is rotated to control the channel nozzle, then the nozzle can be repositioned, but the construction becomes complex and susceptible to errors
Solution Approach 1:
By segmenting the hose into stationary and rotatable sections, the hose holding device only needs to support the rear section statically. The rotation function is isolated to the front section, which connects through the coupling unit. This reduces the complexity of the hose holding device while maintaining ease of nozzle repositioning.
Solution Approach 2:
The coupling unit acts as an intermediary between the stationary rear hose section and the rotatable front hose section. It transmits high pressure purge water while allowing rotational movement, enabling nozzle repositioning without requiring the entire hose system to be complex and movable.
3Adaptability or versatility
If the purge hose is twisted for rotation, then the channel nozzle can be oriented differently, but torsion spring properties cause twisting errors
Solution Approach 1:
Segmenting the hose allows the front section to rotate independently without twisting the entire hose length. The stationary rear section provides a fixed reference point, eliminating cumulative torsion effects that occur when the entire hose is rotated, thereby improving rotation angle precision.
Solution Approach 2:
Instead of rotating the entire hose (excessive action), only the necessary front section is rotated (partial action). This minimizes the length of hose subject to torsion, reducing twisting errors while maintaining the ability to achieve the required nozzle orientation.
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
This solution simplifies the construction, reduces errors, and allows for precise rotation of the channel nozzle, enhancing operational safety and economic efficiency by eliminating the need to rotate the entire hose, and can be easily retrofitted into existing systems.
Implementation Method 1
the housing element and the hollow piston element being supported to each other by a spring and cooperating via a converter converting an axial movement into a rotation
Implementation Method 2
cooperating via a converter converting an axial movement into a rotation
Implementation Method 3
Through which high pressure purge water can flow, which comprises a housing element connected to a purge hose section and a hollow piston element arranged in the housing element in an axially movable manner
Implementation Method 4
charged with high pressure purge water. The purge hose is connected with its front end to at least one channel nozzle provided with jet nozzles creating a recoil effect
Data Source
AI summary
A device for cleaning and/or inspection of a flow channel is provided including a purge hose introduced into the flow channel, charged with high pressure purge water, and connected to a channel nozzle provided with jet nozzles creating a recoil effect. The channel nozzle is controllable by rotation around its axis. A simple, cost-effective, trouble-free construction and high precision can be accomplished by subdividing the purge hose into at least two sections which are connected with each other by a coupling unit through which high pressure purge water flows. The device has a housing element connected to a purge hose section and a hollow piston element arranged in the housing element in an axially movable manner and connected to another purge hose section. The housing element and the hollow piston element are supported by a spring and are cooperating via a converter converting an axial movement into a rotation.