Butterfly Valve Handle With Stepped Configuration and Replaceable Tip
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing valve handles for butterfly valves at the bottoms of bulk commodity hoppers suffer from increased wear due to lighter weight materials, leading to reduced efficacy and more frequent replacements, and encounter operational restrictions with swing-away hopper tees.
Innovation Solution
A valve handle with a stepped staircase configuration and a replaceable lever tip made of hardened material, featuring a ratcheting mechanism and adjustable socket for secure engagement with the valve stem, designed to minimize interference with hopper tee assemblies and enhance wear resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lighter weight materials are used for the valve handle, then ease of operation is improved, but wear resistance deteriorates
Solution Approach 1:
The valve handle combines aluminum alloy (lightweight, easy to operate) with a hardened steel lever tip (wear-resistant). This composite construction allows the handle body to be made of lightweight material while the wear-prone lever tip is made of durable hardened material, resolving the contradiction between ease of operation and wear resistance
Solution Approach 2:
The valve handle is divided into separate components: the handle body and the lever tip. The lever tip is a replaceable component that can be detached and replaced when worn. This segmentation allows the lightweight handle body to remain while only the wear-prone tip needs periodic replacement, maintaining ease of operation while addressing wear resistance
2Device complexity
If the valve handle is positioned close to the valve stem for compact design, then device complexity is reduced, but interference with hopper tee assemblies increases
Solution Approach 1:
The valve handle employs a stepped staircase configuration that extends in multiple dimensions rather than a simple linear arrangement. The handle has offset levels that allow it to navigate around the hopper tee assembly, using vertical and horizontal spacing to avoid interference while maintaining operational effectiveness
Solution Approach 2:
The valve handle is designed with adjustable positioning capabilities, allowing the operator to dynamically adjust the handle position and orientation to avoid interference with swing-away hopper tee assemblies during operation, while maintaining secure engagement with the valve stem
Data Source
AI summary
A valve handle for a bulk commodity hopper valve, the handle including an extended handle bar member, with a valve stem socket opening near its distal end, an associated, shorter lock lever member positioned to extend generally adjacent the handle bar member, the handle bar and lock lever members having corresponding offset bends along their lengths to clear interfering equipment and being pivotally connected to one another at an intermediate position along their lengths, and a biasing spring normally biasing the proximate ends of the handle bar and lock lever members away from one another and the distal ends thereof towards one another, with the distal end of the lock lever member having a lever tip associated therewith movable into and out of engagement with the valve lock notches as the proximate ends of the handle bar member and lock lever member are squeezed together and released by a user and the valve handle is rotated to operate the valve.