Faucet Valve Seal Structure for Precise Water Temperature Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Faucet assemblies often experience water leakage due to the construction of the blocking wall assembly, leading to imprecision in water temperature control, as the blocking wall, typically made of plastic, rotates within a metal chamber, causing hot and cold water to leak and mix imprecisely, resulting in inconsistent temperature delivery to the user.
Innovation Solution
A faucet assembly design featuring a housing with a seal member surrounding openings for pressurized hot and cold water inlets, and a rotating cartridge assembly with a second faceplate that aligns with either inlet to control water temperature precisely, preventing leakage by forming a sealed relationship with the seal member, ensuring accurate temperature adjustment based on handle rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a plastic blocking wall assembly is used to rotate within a metal chamber, then the device complexity is reduced and ease of manufacture is improved, but water leakage occurs and temperature control precision deteriorates
Solution Approach 1:
A seal member is introduced as an intermediary component between the blocking wall assembly and the chamber. This seal member prevents water leakage while allowing the blocking wall to rotate, thus maintaining temperature control precision without compromising the ease of manufacture using plastic materials.
Solution Approach 2:
The seal member functions as a flexible sealing element that accommodates the rotation of the blocking wall assembly. This flexible sealing mechanism prevents water from leaking past the blocking wall while maintaining the simplicity and manufacturability of the plastic blocking wall design.
2Adaptability or versatility
If the blocking wall assembly rotates to adjust temperature, then adaptability and versatility are improved, but water leakage about the blocking wall causes imprecision in temperature control
Solution Approach 1:
The seal member acts as a mediator that enables the blocking wall assembly to rotate freely for temperature adjustment while preventing water leakage. This maintains the adaptability of the system for various temperature settings while ensuring precise temperature control by preventing unwanted water mixing.
3Temperature
If the handle is rotated to extreme positions to block one inlet completely, then the range of temperature control is expanded, but water leakage reduces temperature control precision
Solution Approach 1:
The seal member provides continuous sealing along the interface between the blocking wall and chamber, preventing water leakage even when the blocking wall is in extreme positions. This enables the full temperature range from completely blocking cold water to completely blocking hot water while maintaining precision at all positions.
Data Source
AI summary
A faucet assembly includes a housing which includes a first faceplate defining a first and second opening which extend through the first faceplate and spaced apart and a seal member on the first faceplate which surrounds the first and second openings. A cartridge assembly positioned within an opening in the housing which includes a second faceplate, which abuts the seal member and forms a seal between the second faceplate and the seal member. Second faceplate defines third opening which extends through the second faceplate. With rotation of the second faceplate, third opening changes position relative to first faceplate to include the third opening positioned in one of: alignment with a portion of first opening and a portion of second opening, alignment with the first opening or alignment with the second opening.