WC Suite Flush Box Water Trap Drainage
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Solution Overview
Problem
Existing WC suites suffer from slow water trickles after a flush due to water accumulation in a flush box, which leads to prolonged dripping and lime deposits in areas with calcareous water, and existing solutions like water distributors may not be desirable for design or hygiene reasons.
Innovation Solution
Incorporating a water trap within the flush box that is in fluid communication with the sewer pipe, along with a tilted flow path to guide water directly into the trap, reducing the duration of water trickling by allowing it to flow into the sewer pipe instead of back into the bowl.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a tilted flow path is used to guide water from the cistern outlet to the WC bowl inlet, then water flow efficiency is improved, but water accumulates in the flush box and causes prolonged trickling after flush
Solution Approach 1:
The harmful element (water accumulation causing trickles) is extracted from the system by providing a dedicated drainage path from the flush box to the sewer pipe, separating the flushing function from the post-flush drainage function
Solution Approach 2:
A water trap is introduced as an intermediary element between the flush box and the sewer pipe. This water trap receives water from the flush box through a drainage path and prevents it from flowing back into the WC bowl, thereby eliminating the trickling effect
2Ease of manufacture
If water accumulates in the flush box and flows back into the WC bowl, then the tilted flow path design is maintained, but lime deposits form in the toilet bowl in areas with calcareous water
Solution Approach 1:
The harmful water that would cause lime deposits is extracted from the system by directing it through a separate drainage path to the sewer pipe, preventing its contact with the WC bowl surface
Solution Approach 2:
The water trap acts as an intermediary that intercepts water from the flush box and channels it to the sewer pipe, preventing the water (and potential lime deposits) from reaching the WC bowl
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
Significantly reduces the duration of water trickling from several minutes to just a few seconds, minimizing the risk of stains and lime deposits on the toilet bowl.
Implementation Method 1
the flow path (14) is tilted so that the highest point is arranged near the inlet (48) of the WC bowl (40) and the lowest point is arranged near the water trap (56) of the flush box (50)
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
A WC suite is provided. The WC suite comprises a water cistern (20), a WC bowl (40), and a flow path (14) extending between an outlet (12) of the water cistern (20) and an inlet (48) of the WC bowl (40) for guiding flushing water during a flush, said WC suite further comprising a flush box (50) arranged in fluid communication with said flow path (14) such that flushing water bouncing at the inlet (48) of the WC bowl (40) will accumulate therein. The WC suit is characterized in that the flush box (50) is in fluid communication with a sewer pipe (46) connected to an outlet (12) of the WC bowl (40), wherein said flush box (50) is provided with a water trap (56).