Faucet Mixing Valve Positioning for Handle Accessibility
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Solution Overview
Problem
Conventional single-handle faucet designs often position the mixing valve near the base of the spout, resulting in a faucet handle that is not easily accessible, particularly for frequent users or those with mobility issues, as the handle is typically located near the base rather than the dispensing end, affecting ergonomics and usability.
Innovation Solution
The faucet design positions the mixing valve approximately midway between the mounting surface and the dispensing end of the spout, with a hub containing the valve cartridge and a spout base that houses the water supply lines, allowing the faucet handle to be positioned closer to the dispensing end for improved accessibility, and uses a pin and plug mechanism to secure the water supply lines to the hub, simplifying assembly and ensuring a watertight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the mixing valve is positioned near the base of the spout, then the assembly of the mixing valve to the water supply lines is facilitated, but the accessibility of the faucet handle deteriorates
Solution Approach 1:
The faucet assembly is divided into distinct segments: the spout base containing water supply lines, the hub containing the mixing valve, and the spout. This segmentation allows the mixing valve to be positioned in the hub away from the base, improving handle accessibility while keeping the water supply line connections organized in the spout base.
Solution Approach 2:
The hub acts as an intermediary component between the water supply lines and the spout. It receives the water supply lines via connectors and positions the mixing valve at an optimal location for handle accessibility, mediating between the connection requirements and the ergonomic requirements.
2Device complexity
If the mixing valve is positioned near the base of the spout, then the connection to water supply lines is simplified, but the ergonomics for tasks like dishwashing deteriorates
Solution Approach 1:
The assembly is segmented into functional zones: the spout base for water supply line reception, the hub for mixing valve placement, and the spout for water delivery. This allows the mixing valve to be positioned optimally for ergonomics while maintaining simplified connections through the connector interface.
Solution Approach 2:
The mixing valve is repositioned from the traditional base location to a middle or upper position along the spout axis, utilizing the vertical dimension to improve ergonomic accessibility while maintaining functional connectivity through the hub structure.
3Adaptability or versatility
If the faucet handle is positioned near the base of the spout, then the mixing valve location is determined, but the accessibility for users with mobility issues deteriorates
Solution Approach 1:
The faucet system is segmented so that the handle is coupled to the hub rather than directly to the base. This allows the hub to serve as a flexible mounting point that can position the handle at an ergonomically accessible location while maintaining the structural determination provided by the base-to-hub connection.
Solution Approach 2:
The hub serves as an intermediary between the fixed base structure and the movable handle, allowing the handle to be positioned at an optimal location for accessibility while maintaining structural support and functional connection to the water supply system.
Data Source
AI summary
A faucet includes a spout base having a first end mounted to a mounting surface and a second end opposite the first end that includes an elbow, more than one water supply line within the spout base, and a hub containing a mixing valve. The hub includes an inlet end and an outlet end. The second end of the spout base and the inlet end of the hub connect together. The inlet end of the hub connects to the water supply lines. The mixing valve is approximately midway between the elbow and a dispensing end of the faucet.