Bidet Backflow Preventing Member Using Deformable Pressure Valve
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Solution Overview
Problem
Existing bidet systems face issues with backflow prevention due to corrosion or malfunction of spring-based check valves, leading to contamination of the water supply when the backflow preventing means fail.
Innovation Solution
A bidet system incorporating a backflow preventing member that uses a deformable component, such as a rubber or silicone material, to open or close a flow path based on water pressure, ensuring that water does not flow backward to the water inlet side, complementing the existing backflow preventing means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring-based check valve is used as backflow preventing means, then the backflow can be prevented through elastic force of the spring, but the spring may be corroded or malfunction due to foreign matter after long period use
Solution Approach 1:
The patent divides the backflow prevention function into two separate components: a check valve with spring-based backflow preventing means and a separate backflow preventing member. This segmentation ensures that if one component fails, the other can still prevent backflow, thereby resolving the reliability issue while extending effective service life.
Solution Approach 2:
The patent implements a dual backflow prevention system where the backflow preventing member serves as a backup mechanism. This beforehand cushioning approach ensures that even if the spring-based check valve malfunctions after long use, the secondary backflow preventing member is already in place to prevent backflow, maintaining reliability throughout the extended service life.
2Reliability
If a dual backflow prevention system is implemented, then backflow can be stably prevented even if one component fails, but the device complexity increases
Solution Approach 1:
The patent combines the backflow preventing member with the water supply valve structure, integrating it into the existing device framework. This merging approach allows the dual backflow prevention system to function reliably while minimizing additional complexity by sharing structural elements with the water supply valve.
Solution Approach 2:
The backflow preventing member is designed to work in conjunction with the check valve, creating a multi-functional backflow prevention system. Both components serve the same backflow prevention function but through different mechanisms, providing redundancy without requiring completely separate systems, thus balancing reliability improvement with controlled complexity.
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 solution effectively prevents backflow by using a simple and stable mechanism that relies on water pressure to open or close the flow path, ensuring the bidet system maintains water supply integrity even if one component fails.
Implementation Method 1
allowing water to be supplied or preventing water from flowing backward to the water inlet side due to water pressure
Implementation Method 2
a deformable component, such as a rubber or silicone material, to open or close a flow path based on water pressure
Data Source
AI summary
A bidet comprises a water supply valve opened and closed to allow water to flow and including a backflow preventing means preventing water from flowing backward to a water inlet side; a heating portion heating water supplied through the water supply valve; and a backflow preventing member disposed on a rear end of the water supply valve and allowing water to be supplied or preventing water from flowing backward to the water inlet side due to water pressure, wherein the backflow preventing means and the backflow preventing member prevent water from flowing backward to the water inlet side in concert.