Pipe Cleaning Nozzle With Wing-Like Ribs For Propulsion
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Solution Overview
Problem
Existing pipe cleaning nozzles are not cost-effective, have complex assembly processes, and lack sufficient mechanical load-bearing capacity and propulsion during cleaning.
Innovation Solution
A pipe cleaning nozzle design featuring wing-like ribs protruding from a central nozzle head, with outlet channels for pressurized cleaning liquid, allowing for reduced material thickness and weight, enhanced propulsion, and simplified assembly by integrating the nozzle head and connecting part as a one-piece plastic molding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the nozzle head is designed as a compact cast body made of highly wear-resistant material, then mechanical strength and wear resistance are improved, but manufacturing cost and complexity increase
Solution Approach 1:
The patent changes the material parameter from metal/ceramic to plastic, and changes the manufacturing method from casting to injection molding. This allows the nozzle head to be produced cost-effectively while maintaining sufficient mechanical strength for pipe cleaning applications through appropriate plastic material selection and design optimization.
Solution Approach 2:
The patent accepts that the plastic nozzle head may have shorter service life compared to metal counterparts, but this is compensated by dramatically reduced manufacturing cost and ease of production. The nozzle head can be economically replaced rather than repaired, which is acceptable for the application context.
2Adaptability or versatility
If the nozzle head and connecting part are produced as separate components, then assembly flexibility is improved, but assembly complexity and time increase
Solution Approach 1:
The patent merges the nozzle head and connecting part into a single integrally molded plastic component. This eliminates the need for separate assembly steps, reduces the number of parts, simplifies the overall structure, and decreases assembly time while maintaining adaptability through the integrated design.
3Weight of moving object
If material thickness of the nozzle head is reduced between adjacent ribs, then weight is reduced and forward acceleration is improved, but structural strength may be compromised
Solution Approach 1:
The patent applies local quality by varying the material thickness distribution in the nozzle head. The material is thicker at the ribs where structural strength and jet formation are critical, and thinner in the areas between ribs where weight reduction is beneficial. This optimized distribution achieves both weight reduction and sufficient structural strength.
Solution Approach 2:
The patent uses curved, ribbed结构设计 that provides structural strength with reduced material. The ribs create a lightweight yet strong structure that maintains integrity while reducing overall mass, enabling better forward acceleration from the recoil force.
4Force
If outlet channels are oriented obliquely to the rear, then forward propulsion is improved, but manufacturing complexity increases
Solution Approach 1:
The patent designs the outlet channels to be self-formed during the injection molding process. The oblique orientation of the channels is integrated into the mold design, allowing the complex angled geometry to be created automatically without additional machining or assembly steps. The plastic material flows and solidifies to create the precise angled channel geometry required for effective forward propulsion.
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 improves forward movement and stability of the nozzle, reduces assembly complexity, and enables effective dirt removal from pipes with increased acceleration and reduced weight, while allowing for cost-effective manufacturing.
Implementation Method 1
The outlet channels ( 30) are oriented obliquely to the rear, i.e., they are oriented at an acute angle to the longitudinal axis ( 34) of the connecting part ( 14), so that the fluid jets exiting the nozzle head ( 12) via the outlet channels ( 30) have a radial and a backward-directed axial flow component. The axially rearward-directed component causes the pipe cleaning nozzle ( 10) to propel itself forward
Implementation Method 2
The outlet channels, each running along a wing-like rib, can be relatively long, allowing the pressurized cleaning fluid exiting the nozzle head via these channels to form a jet, particularly a pinpoint jet. This facilitates the removal of contaminants from the pipe being cleaned.
Data Source
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AI summary
The invention relates to a pipe cleaning nozzle having a nozzle head for delivering a cleaning liquid which is under pressure and having a connection part for connecting a hose, wherein the nozzle head has a plurality of outlet channels which are oriented sloped rearward. In order to further develop the pipe cleaning nozzle so that same enables improved movement through a pipe to be cleaned, according to the invention the nozzle head has a central part from which a plurality of wing-like ribs protrude outward, arranged in the circumferential direction of the central part at regular spacing from each other, and one outlet channel extends through each of said ribs.