Reversible Faucet Valve Assembly for Hot and Cold Control
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Solution Overview
Problem
Faucet assemblies with separate hot and cold water control valves are complex and costly to manufacture, necessitating a simpler solution for fluid control.
Innovation Solution
A single fluid control valve design that includes a rotatable stem, moveable and stationary discs, and a reversible valve seal, allowing for 360-degree rotation and configuration to serve either hot or cold water sources, reducing the need for distinct valves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate hot and cold water control valves are used, then control precision for each water source is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines two separate control valves into a single integrated valve assembly that controls both hot and cold water sources. The shared valve body, stem, and disc components eliminate the need for duplicate valve mechanisms, thereby reducing device complexity and manufacturing cost while maintaining independent control capability through the reversible valve seal mechanism.
Solution Approach 2:
The valve assembly is designed with universal functionality to control both hot and cold water sources using a single valve mechanism. The reversible valve seal allows the same valve to serve multiple functions by switching between hot and cold water control, eliminating the need for separate dedicated valves for each water source.
2Reliability
If separate hot and cold water control valves are used, then reliability of individual valve control is improved, but manufacturing cost increases
Solution Approach 1:
By merging the control functions of hot and cold water into a single valve assembly, the patent reduces the total number of components that need to be manufactured, assembled, and quality-tested. This consolidation lowers manufacturing cost while the robust single-valve design maintains reliable control over both water sources.
3Device complexity
If a single fluid control valve is used, then device complexity and manufacturing cost are reduced, but adaptability to different water sources decreases
Solution Approach 1:
The valve seal is designed to be reversible and dynamically switchable, allowing the single valve assembly to adapt its configuration for controlling different water sources. This dynamic reversibility enables the valve to function with both hot and cold water sources, maintaining versatility while using a simplified single-valve design.
4Ease of operation
If a single fluid control valve is used, then ease of assembly and servicing is improved, but control precision for multiple water sources may decrease
Solution Approach 1:
The integration of hot and cold water control into a single valve assembly simplifies assembly procedures and servicing operations, as technicians only need to work with one valve unit rather than two separate valves. The design maintains control precision through the reversible valve seal mechanism that ensures proper sealing and control for both water sources.
Data Source
AI summary
A fluid control valve for a faucet includes a body, a stem, a moveable disc, and at least one stationary disc. The stem is rotatably coupled to the body. The moveable disc is coupled to the stem and is configured to rotate with the stem. The at least one stationary disc is coupled to the body below the moveable disc. The fluid control valve is configured to be biased in an axial direction against a retaining element within a valve body by an incoming supply of fluid through the at least one stationary disc, so as to retain the fluid control valve within the valve body along the axial direction.