Faucet Friction Ring for Stable Valve Stem Positioning
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Solution Overview
Problem
Existing faucet assemblies face issues with self-movement of the valve stem due to insufficient internal friction, leading to unwanted changes in water flow or temperature.
Innovation Solution
A friction ring is introduced that slidably engages with the valve stem, applying a friction force to maintain the position of the valve stem over its full range of movement, thereby preventing self-movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If internal friction between valve stem and valve assembly parts is increased to prevent handle self-movement, then handle stability is improved, but device complexity increases due to careful control of handle size and shape
Solution Approach 1:
A friction ring is introduced as an intermediary component between the valve stem and the valve assembly. This friction ring provides the necessary friction force to prevent handle self-movement without requiring complex handle design, thereby resolving the contradiction between handle stability and device complexity
Solution Approach 2:
The friction control function is segmented from the handle design itself and placed in a separate friction ring component. This allows the handle to maintain simple geometry while the friction ring independently provides the necessary friction force to prevent self-movement
2Stability of the object's composition
If friction force between contact member and valve stem is increased to prevent self-movement, then valve position stability is improved, but ease of operation deteriorates due to increased resistance to handle manipulation
Solution Approach 1:
The friction ring is designed with localized friction properties that provide sufficient friction force to prevent self-movement while allowing intentional user manipulation. The contact member geometry creates high friction in the radial direction (preventing drift) while maintaining ease of rotation for deliberate position changes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The friction ring effectively prevents self-movement of the valve stem, allowing for precise control of water flow and temperature without the need for complex handle design adjustments.
Implementation Method 1
The contact member is configured to press against the valve stem to increase a friction force between the contact member and the valve stem over a full range of movement of the valve stem
Data Source
AI summary
Disclosed is a friction ring including a body and a contact member. The body is configured to couple the friction ring to at least one of a faucet assembly or a faucet valve assembly. The contact member is disposed on the body. The contact member is configured to slidably engage with a valve stem of the faucet valve assembly. The contact member is further configured to press against the valve stem to increase a frictional force between the contact member and the valve stem over a full range of movement of the valve stem.