Offset Sprinkler Compartment for Top-Access Pilot Valve Maintenance
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Solution Overview
Problem
Existing pop-up sprinkler systems face challenges with complex and time-consuming maintenance of pilot valves, which require shutting off the main water supply for repairs, disrupting irrigation cycles and are often located externally, leading to inefficiencies.
Innovation Solution
A sprinkler design featuring an offset compartment configuration with integrated check valves and pressure receptacles allows for easy access and replacement of pilot valves from the top, along with a communication tube to accommodate manufacturing imperfections, and optional wireless communication modules for enhanced control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pilot valves are located externally in traditional sprinkler systems, then they are easily accessible for installation, but they require shutting off the main water supply for maintenance and disrupt irrigation cycles
Solution Approach 1:
The pilot valve is nested within the sprinkler head's internal compartment, allowing it to be accessed and maintained without external exposure. The compartment is designed to accommodate the pilot valve, check valve, and pressure receptacle in a integrated manner, enabling maintenance while the sprinkler remains in its retracted position and without disrupting the irrigation system's water supply.
2Productivity
If pilot valves are integrated internally in the sprinkler, then irrigation cycles remain continuous during maintenance, but the compartment space must be precisely designed to accommodate all components
Solution Approach 1:
The compartment is designed with an offset configuration rather than a symmetric arrangement. The offset compartment is positioned to provide optimal access to the pilot valve and other components, allowing for easier maintenance operations. The asymmetric design accommodates the pilot valve, check valve, and pressure receptacle in a space-efficient manner while maintaining manufacturing feasibility through standardized component interfaces.
3Ease of manufacture
If the riser is centrally positioned in the sprinkler, then the structure is symmetric and simple to manufacture, but it limits the space available for internal compartments and components
Solution Approach 1:
The riser is positioned in an offset configuration rather than at the center of the sprinkler body. This asymmetric positioning creates additional space for the internal compartment to house the pilot valve, check valve, and pressure receptacle. The offset riser arrangement allows for optimized internal volume utilization while maintaining structural integrity and ease of assembly through standardized mounting interfaces.
Data Source
AI summary
A sprinkler includes a compartment that surrounds its riser portion in an offset or asymmetrical configuration. More specifically, the distance of the compartments walls from those of the riser vary (i.e., increase or decrease) at different locations surrounding the riser. Put another way, the riser is closer to one side of the compartment than other sides of the compartment. This non-concentric configuration allows larger components to fit inside the compartment than would otherwise fit if the riser was symmetrically surrounded by the compartment.