Faucet Handle Adapter Non-Rotatable Design
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Solution Overview
Problem
Conventional faucet assemblies lack a structural integration that prevents handle rotation with respect to the deck plate, leading to instability and potential misalignment of valve operators, affecting the operation and durability of the faucet.
Innovation Solution
A faucet assembly design featuring a non-rotatable handle adapter coupled to the deck plate, which secures the hub stationary during valve operator rotation, ensuring the actuator operates effectively and maintaining structural integrity by preventing handle rotation about the axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle adapter is made rotatable with respect to the deck plate, then the ease of operation is improved, but the stability and alignment precision of the valve operator deteriorates
Solution Approach 1:
The handle assembly is segmented into two functional parts: the handle adapter that remains stationary relative to the deck plate, and the handle subassembly that rotates. This segmentation allows the rotational function to be isolated to the handle subassembly while the adapter maintains stable alignment, resolving the contradiction between ease of operation and stability.
Solution Approach 2:
The hub acts as an intermediary component between the handle adapter and the valve operator. It provides a stable mounting point on the adapter while allowing the valve operator to rotate, thereby mediating between the stationary adapter and the rotating handle to maintain both operational ease and alignment stability.
2Ease of operation
If the hub is allowed to rotate with respect to the deck plate, then the ease of operation is improved, but the manufacturing precision and reliability of the valve operation deteriorates
Solution Approach 1:
The rotation function is segmented and assigned exclusively to the handle subassembly, while the hub's position relative to the deck plate remains fixed. This ensures that the critical positioning relationship between the valve operator and deck plate is maintained with manufacturing precision, while operation remains easy through handle rotation.
Solution Approach 2:
Instead of allowing the hub to rotate and having the adapter compensate, the invention inverts the approach by keeping the hub stationary and allowing the handle subassembly to rotate. This inversion maintains precise alignment while achieving ease of operation.
3Reliability
If the handle adapter is made non-rotatable with respect to the deck plate, then the stability and durability are improved, but the ease of operation deteriorates
Solution Approach 1:
The operational rotation is segmented to occur at the handle subassembly level rather than at the adapter-deck plate interface. This allows the adapter to remain firmly fixed to the deck plate for durability, while the handle subassembly provides the necessary rotational freedom for easy operation.
Solution Approach 2:
The handle subassembly acts as an intermediary that provides rotational motion without requiring the adapter to rotate. This mediator component enables easy operation while preserving the stable, non-rotatable connection between the adapter and deck plate, thereby maintaining reliability.
Data Source
AI summary
A faucet assembly includes a valve subassembly having a valve mechanism and an actuator having an axis. An underbody includes a valve end body for receiving the valve subassembly for connection thereto. A deck plate is configured for coupling to the underbody. A handle adapter is coupled to said faucet assembly to be non-rotatable with respect to the deck plate. A handle subassembly has a hub and a valve operator. The valve operator is rotatably coupled to the hub. The valve operator is connected to the actuator of the valve subassembly to operate the valve subassembly when the valve operator is rotated about the axis to move in relation to the deck plate. The hub is attached to the deck plate via the handle adapter.