Faucet Gear Linkage for Trim Replacement
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Solution Overview
Problem
Conventional dual control faucet systems require users to handle and replace the entire faucet, including the valve assembly, when swapping out the trim for aesthetic purposes, which is cumbersome and wasteful.
Innovation Solution
A gear linkage mechanism is introduced between the temperature controls and the valve assembly, allowing the valve assembly to be positioned below the deck and the trim portion to be easily swapped without removing the working components, using a bevel gear system to control the spindle rotation for hot and cold water management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve assembly is integrated within the faucet body and controls, then the structural integrity and reliability are improved, but the ease of replacement for aesthetic purposes deteriorates
Solution Approach 1:
The faucet system is divided into separate modules: the valve assembly (with spindles and cartridges) is separated from the faucet body and controls. This segmentation allows the valve assembly to remain fixed below the deck while the aesthetic portions can be independently replaced, resolving the contradiction between structural integrity and ease of replacement.
Solution Approach 2:
The valve assembly is extracted from the traditional integrated position within the faucet body and repositioned below the deck. This extraction allows the faucet body and controls to be replaced for aesthetic purposes without disturbing the functional valve assembly, while the valve assembly maintains its reliable position separate from the removable aesthetic components.
2Ease of operation
If the valve assembly is positioned below the deck and separated from the controls, then the ease of replacement for aesthetic purposes is improved, but the device complexity increases
Solution Approach 1:
A gear linkage mechanism acts as an intermediary between the controls positioned above the deck and the valve assembly below the deck. The bevel gears transmit rotational motion through the deck, enabling control functionality without direct mechanical connection, thus allowing separation for ease of replacement while managing the complexity through a standardized gear interface.
3Ease of operation
If the gear linkage mechanism is introduced to connect controls and valve assembly, then the ease of replacement is improved, but the device complexity increases
Solution Approach 1:
Instead of connecting the valve assembly directly to the controls within the faucet body, the system inverts the connection approach by positioning the valve assembly below the deck and using bevel gears to transmit motion upward through the deck. This inversion allows the complex gear mechanism to be concealed while simplifying the replacement process for the visible components.
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
This configuration enables users to easily replace the faucet trim without disturbing the valve assembly, reducing waste and simplifying the process, while maintaining control over water temperature through the gear linkage mechanism.
Implementation Method 1
Each control is connected to a first bevel gear, and each spindle of the valve assembly is connected to a second bevel gear. When a user manipulates (e.g., turns) the cold water control, it causes the first bevel gear of the cold water control to turn. The first bevel gear of the cold water control is linked to or in mesh with the second bevel gear of the cold water control at a 90 degree angle. When the first bevel gear turns, it causes the second bevel gear to turn.
Data Source
AI summary
Provided herein is a dual control faucet system comprising: a cold water control system housed within a cold water control and comprising a first bevel gear; a hot water control system housed within a hot water control and comprising a second bevel gear; and a faucet body; wherein the cold water control system is connected to a cold water spindle via a pair of bevel gears and the hot water control system is connected to a hot water spindle via a pair of bevel gears, wherein, when the cold water control receives an input from a user, the pair of bevel gears rotate such that the cold water spindle rotates to control a flow of cold water, and wherein, when the hot water control receives an input from a user, the pair of bevel gears rotate such that the hot water spindle rotates to control a flow of hot water.