Faucet Neck Assembly With Separate Soap Outlet to Prevent Cross-Contamination
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Solution Overview
Problem
Existing liquid soap dispensers, both standalone and integrated into faucet systems, suffer from issues such as contamination, frequent refilling, leakage, and the inability to request solely water or soap without cross-contamination, posing safety and hygiene concerns.
Innovation Solution
A water faucet system with a neck assembly integrating a separate soap outlet and water spout, utilizing a sensor-activated soap delivery system that prevents cross-contamination, includes a soap storage tank with a concentrate solution to reduce refilling frequency, and features a control module for managing soap dispensing and water flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If liquid soap dispensers are integrated into faucet systems, then space efficiency is improved, but cross-contamination between soap and water occurs
Solution Approach 1:
The faucet system is divided into separate functional zones: a first outlet for water and a second outlet for soap dispensing. The neck assembly contains distinct internal passageways that separate water flow from soap delivery, preventing cross-contamination while maintaining integrated space efficiency.
Solution Approach 2:
The soap dispensing function is extracted as a separate outlet and delivery system from the main water faucet structure. This allows independent control and separation of soap and water streams, eliminating cross-contamination risks while keeping both functions within the same faucet body.
2Ease of operation
If manual pump members are used in soap dispensers, then soap dispensing is achieved, but pump contamination occurs
Solution Approach 1:
The manual mechanical pump system is replaced with an electronic pump mechanism controlled by a control module. The pump is activated electronically via sensor detection or user interface, eliminating the need for manual manipulation that causes contamination of mechanical pump members.
Solution Approach 2:
The system incorporates sensor-activated automatic soap dispensing that detects user presence or hand positioning and automatically dispenses the required amount of soap without requiring manual pump operation. This self-service mechanism eliminates contact between soiled hands and the dispensing mechanism.
3Device complexity
If soap and water outlets are closely positioned, then compact design is achieved, but soap residue contamination of water occurs
Solution Approach 1:
The outlet structure is segmented into distinct first and second outlets with separate internal passageways leading to each. This segmentation maintains compact external dimensions while ensuring internal separation of water and soap flow paths, preventing soap residue from contaminating the water supply.
Solution Approach 2:
Separate internal passageways act as intermediaries between the reservoir and the outlets. These dedicated channels ensure that soap and water flows remain isolated throughout their entire path through the faucet, preventing cross-contamination even when outlets are positioned close together externally.
4Adaptability or versatility
If standalone soap dispensers are used, then soap dispensing function is provided, but frequent refilling is required
Solution Approach 1:
The soap dispenser reservoir is merged with the faucet system as an integrated component. This combination allows the faucet to serve dual purposes: water delivery through the first outlet and soap dispensing through the second outlet, eliminating the need for separate standalone dispensers and their associated frequent refilling requirements.
Data Source
AI summary
A water faucet system including a faucet having a neck comprising a water passageway and liquid soap delivery line, both integrated within the neck assembly. The water faucet system features a streamlined neck assembly that includes a water outlet or spout, located at the distal portion of the neck assembly, and additionally includes a separate soap outlet located at a predetermined location. The soap delivery (soap dispensing) is initiated by a user performing an activation event directed to a sensor system located in the neck assembly. In preferred embodiments, the sensor system utilizes touchless type sensors so to avoid any physical contact with the neck assembly.


