Ball Valve Handle Locking With Multi-Notch Sleeve Engagement
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Solution Overview
Problem
Existing ball valve assemblies lack an effective locking mechanism to securely maintain the handle in open and closed positions, leading to potential accidental changes in valve state.
Innovation Solution
A ball valve assembly design incorporating an outer sleeve with first, second, and third notches, and a locking device with engagement prongs that straddle these notches to impede handle movement between positions, ensuring the valve remains open or closed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking device with engagement prongs is added to the valve assembly, then the reliability of maintaining valve position is improved, but the device complexity increases
Solution Approach 1:
The locking device is segmented into multiple engagement prongs (first, second, and third engagement prongs) that can independently engage with corresponding notches in the outer sleeve. This segmentation allows the locking mechanism to provide multiple discrete locking positions, enhancing reliability while keeping each individual prong relatively simple in structure.
Solution Approach 2:
The locking device is movably coupled to the handle and nests within the overall valve assembly structure. The engagement prongs extend into notches of the outer sleeve, creating a nested configuration where the locking device is contained within the handle-outer sleeve assembly, minimizing space requirements and reducing overall complexity.
2Adaptability or versatility
If multiple notches and engagement prongs are incorporated into the locking mechanism, then the ability to maintain multiple positions (open and closed) is improved, but the manufacturing complexity increases
Solution Approach 1:
The outer sleeve is divided into multiple notches (first, second, and third notches) that are distributed around its circumference. Each notch corresponds to a specific valve position (open, closed, or intermediate). This segmentation allows the valve to maintain multiple positions using simple geometric features that can be manufactured using standard machining operations.
Solution Approach 2:
The outer sleeve serves multiple functions: it provides structural support for the valve assembly, defines the positioning notches for the locking mechanism, and engages with the engagement prongs to maintain valve position. This multi-functionality reduces the need for separate components, simplifying manufacturing while providing versatile multi-position locking capability.
Data Source
AI summary
A ball valve assembly includes an outer sleeve having first and second pillars and defining an outer sleeve hollow, a first notch, a second notch, and a third notch, wherein the first pillar of the outer sleeve at least partially defines and is positioned between the first and second notches, and the second pillar of the outer sleeve at least partially defines and is positioned between the second and third notches.