CPVC Sprinkler Support Member Eliminates Guide Pins
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Solution Overview
Problem
Existing sprinkler assemblies with drop-down deflector assemblies require multiple interconnected components, including guide pins, which complicates the assembly process and increases complexity.
Innovation Solution
A simplified sprinkler assembly design featuring a support member with an annular ring and stanchions that allows the deflector assembly to translate axially, eliminating the need for guide pins and integrating a thermally responsive trigger assembly for actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If guide pins and through holes are used to support the deflector assembly, then the deflector can translate axially, but the assembly complexity increases
Solution Approach 1:
The patent removes the guide pins and through holes from the assembly, replacing them with an integrated support member that has built-in guide surfaces. This extraction of unnecessary components directly reduces assembly complexity while maintaining the deflector's axial translation capability through the support member's integrated guidance structure
Solution Approach 2:
The support member combines multiple functions into a single component: it provides structural support, guides axial translation, and eliminates the need for separate guide pins. This merging of functions reduces the total number of parts and simplifies the assembly process while ensuring proper deflector movement
2Reliability
If multiple interconnected components are used, then the deflector can be supported, but manufacturing and assembly difficulty increases
Solution Approach 1:
The support member integrates guide surfaces and support structures into a single component that can be manufactured as one piece. This eliminates the need to assemble multiple separate parts (guide pins, through holes, support structures), thereby simplifying both manufacturing and assembly processes while maintaining reliable deflector support
Solution Approach 2:
The support member serves multiple functions simultaneously: it supports the deflector assembly, guides its axial translation, and provides structural anchoring. This multi-functionality reduces the total component count and simplifies the overall assembly process while ensuring reliable operation
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 simplifies the assembly process, reduces component complexity, and ensures effective water distribution by controlling the axial translation of the deflector assembly, enhancing operational efficiency and reliability.
Implementation Method 1
a thermally responsive trigger assembly for actuation
Data Source
AI summary
A sprinkler assembly that includes a deflector assembly that translates with respect to the sprinkler frame upon actuation of the sprinkler from an unactuated state. The sprinkler frame includes a support member having an annular member spaced from the outlet to limit or control the axial translation of the deflector assembly relative to the outlet. Moreover, the annular member includes a region to support a closure assembly and thermally responsive trigger assembly under a fluid static load. A cover plate assembly includes a flexible annular wall to allow the cover plate assembly to be pushed on and held about the annular member of the sprinkler frame.