Float Valve Support Structure for Stable Three-Point Seating
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Solution Overview
Problem
The stability of seating a float on a valve seat in valve devices is compromised by decreased position accuracy of the float seat, leading to instability in valve operation.
Innovation Solution
A valve device design featuring a support system with a frame-shaped base and two float seats that provide three-point support for the float, enhancing stability by maintaining high position accuracy and reducing deformation, thus ensuring consistent seating of the float on the valve seat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single float seat is used to support the float, then the device complexity is low, but the position accuracy and stability of the float on the valve seat deteriorate
Solution Approach 1:
The single float seat is divided into multiple float seats (first float seat and second float seat) that are spaced apart from each other. This segmentation allows the float to be supported at multiple discrete points, improving position accuracy and stability without requiring a overly complex monolithic structure. The segmented approach maintains manufacturing simplicity while achieving better positional control.
Solution Approach 2:
The float seats are arranged in a spatial distribution pattern (spaced apart in different locations) rather than being concentrated at a single point. This dimensional arrangement provides three-point or multi-point support, creating geometric stability that prevents float swing and maintains accurate positioning. The spatial distribution transforms a single-point support problem into a multi-point stable support system.
2Ease of manufacture
If the float seat structure is simplified, then the ease of manufacture increases, but the stability in seating the float on the valve seat decreases
Solution Approach 1:
The support structure is segmented into multiple simple float seats rather than one complex seat. Each float seat can be manufactured independently using simple processes, yet their combined effect provides stable multi-point support. This segmentation maintains manufacturing ease while achieving superior seating stability through the distributed support points.
Solution Approach 2:
Instead of making the entire support structure uniformly complex, local quality is applied by placing multiple simple float seats at specific locations where support is needed. Each float seat has a simple local structure that is easy to manufacture, but their strategic spatial arrangement provides the necessary stability for float seating.
3Stability of the object's composition
If multiple float seats are used to enhance stability, then the stability of float seating improves, but the device complexity increases
Solution Approach 1:
The support system is segmented into multiple independent float seats rather than one complex integrated seat. This segmentation provides stable multi-point support while keeping each individual component simple. The modular nature of segmented float seats actually reduces overall complexity compared to a single complex seat design.
Solution Approach 2:
The key parameter changed is the number and spatial distribution of float seats, not the complexity of each seat. By varying the number of seats and their positions (spaced apart), stability is enhanced without requiring complex seat structures. This parameter change approach maintains simplicity while achieving the stability goal.
Data Source
AI summary
A valve device includes: a casing including a valve chamber; a valve seat disposed in the valve chamber and including a valve hole; a float disposed in the valve chamber and movable in accordance with the amount of drain in the valve chamber to thereby open and close the valve hole; and a support supporting the float in the state of being seated on the valve seat and closing the valve hole. The support includes a base including an opening and having a frame shape, and two float seats disposed in the base, and the float in the state of being seated on the valve seat and closing the valve hole is seated on the two float seats.