Self-Flushing Arc Adjustment Mechanism for Rotary Sprinklers
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Solution Overview
Problem
Rotary irrigation sprinklers often experience failure due to accumulation of sand particles and debris in the arc adjustment mechanism, leading to clogged slots that prevent adjustment of the water distribution arc, resulting in 70-80% of arc adjustment failures.
Innovation Solution
A self-flushing mechanism is integrated into the rotary pop-up sprinkler that automatically flushes the arc adjustment member and other prone areas during each irrigation cycle, using a flow passage and flushing orifices to clear debris with pressurized water, ensuring the slot remains clear and functional.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the arc adjustment member slot is used for manual adjustment, then the water distribution arc can be adjusted, but sand particles and debris accumulate in the slot causing clogging and failure
Solution Approach 1:
The patent implements a flushing mechanism that proactively removes debris from the arc adjustment member slot before accumulation causes failure. Water is directed through the slot during sprinkler operation to prevent clogging, maintaining adjustment capability without manual intervention.
Solution Approach 2:
The arc adjustment member is designed to be self-flushing during normal sprinkler operation. The water flow automatically cleans the slot without requiring user intervention, transforming the system into a self-maintaining component that prevents its own failure.
2Ease of operation
If manual cleaning of the slot is performed, then debris can be removed, but the adjustment member may disintegrate and require replacement
Solution Approach 1:
The system eliminates manual cleaning by implementing automatic self-flushing during operation. Water flow continuously removes debris without user contact, preventing the mechanical stress and damage that occurs during manual intervention while maintaining the slot's adjustment functionality.
Solution Approach 2:
The patent uses hydraulic flow (water) to perform the cleaning function that would otherwise require manual mechanical intervention. The water stream safely removes debris from the slot without applying mechanical force that could damage or disintegrate the adjustment member.
3Reliability
If water is used to flush the slot continuously, then debris is removed effectively, but water wastage increases
Solution Approach 1:
The flushing mechanism operates periodically during the sprinkler's normal irrigation cycles rather than continuously. Water is directed through the slot at appropriate intervals during operation, effectively removing debris while utilizing water that would otherwise be consumed by the irrigation function, thereby minimizing additional water wastage.
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 self-flushing mechanism effectively prevents damage to the arc adjustment member and maintains its functionality, reducing the need for manual cleaning and minimizing water wastage, thereby ensuring consistent operation and extending the lifespan of the sprinkler components.
Implementation Method 1
A self-flushing mechanism is integrated into the rotary pop-up sprinkler that automatically flushes the arc adjustment member and other prone areas during each irrigation cycle, using a flow passage and flushing orifices to clear debris with pressurized water
Data Source
AI summary
An irrigation sprinkler is provided having a turret for the distribution of irrigation water that includes a self-flushing mechanism to prevent accumulation of debris in a sprinkler control member and/or the interior of the turret. The sprinkler includes a main flow path that delivers water to a nozzle for irrigation and a secondary flow path that delivers water to flush part of the member and/or interior of the turret. The secondary flow path delivers water when the sprinkler cycles on and when the sprinkler cycles off. For example, with a pop-up sprinkler, the secondary flow path would deliver fluid sometime during its movement to the elevated position and movement to the retracted position.