Toilet Flushing Pipe Layout for Bubble-Resistant Drainage
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Solution Overview
Problem
The existing L-shaped bend pipe structure in toilet flushing systems traps bubbles, reducing drainage flow rate and affecting flushing performance.
Innovation Solution
A flushing device with a flushing vertical pipe, a connecting bend pipe, and a flushing lateral pipe, where the inner diameter of the vertical pipe is larger than the bend pipe and lateral pipe, allowing bubbles to accumulate and reducing their impact on the flushing flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an L-shaped bend pipe structure with uniform small diameter is used, then the device complexity is reduced and ease of manufacture is improved, but bubbles are trapped at the bend causing reduced drainage flow rate and worsened flushing effect
Solution Approach 1:
The vertical pipe is segmented into different diameter sections: an upper section with larger diameter for bubble accumulation and a lower section with smaller diameter for drainage. This segmentation allows the system to handle both bubble separation and efficient water flow, resolving the contradiction between ease of manufacture and drainage flow rate.
Solution Approach 2:
Different sections of the pipe are given different local qualities (diameters) to perform different functions. The upper vertical pipe has larger diameter locally to accommodate bubbles, while the lower section maintains smaller diameter for efficient drainage. This local quality variation solves the contradiction by optimizing each section for its specific function.
2Object-affected harmful factors
If the vertical pipe has larger diameter to accommodate bubbles, then bubble accumulation is improved and flushing effect is enhanced, but the device complexity increases and manufacturing becomes more difficult
Solution Approach 1:
The vertical pipe is divided into segments with different diameters rather than using a uniformly large diameter pipe. This segmentation reduces overall device complexity while still providing sufficient space for bubble accumulation in the upper section, thereby resolving the contradiction between reducing bubble influence and minimizing device complexity.
Solution Approach 2:
The solution addresses the bubble accumulation problem by utilizing the vertical dimension (height of upper pipe section) rather than increasing diameter throughout. This dimensional approach reduces material usage and device complexity while effectively accommodating bubbles through the larger upper diameter section.
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 reduces the influence of bubbles on flushing speed, improving the flushing performance and effect of the toilet by allowing bubbles to accumulate in the vertical pipe rather than being trapped in the bend pipe.
Implementation Method 1
the bubbles entrained in the water discharged from the water tank will be accumulated in a cavity of the flushing vertical pipe
Data Source
AI summary
A flushing device configured to connect a toilet to a water tank includes a flushing vertical pipe configured to be connected to the water tank; a flushing lateral pipe configured to be connected to the toilet; and a connecting bend pipe configured to be connected between a lower end of the flushing vertical pipe and a first end of the flushing lateral pipe. An inner diameter of the flushing vertical pipe is larger than an inner diameter of the connecting bend pipe and larger than an inner diameter of the flushing lateral pipe.