Toilet Flushing With Staged Water Flow and Sewage Guidance
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Solution Overview
Problem
Existing toilets face issues with large water consumption, sewage splashing, odor emission, and structural complexity, particularly in intelligent toilets without water tanks, which require high water pressure and are prone to blockages, and do not accommodate both sitting and squatting positions.
Innovation Solution
A flushing method that utilizes a sewage receiving area with adjustable water flow and direction, combined with a water storage cavity, to minimize water usage and prevent splashing, while allowing for both sitting and squatting postures, and incorporates a water inlet system using waste water from the washbasin for automatic flushing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one-time large-displacement flushing mode is used, then sewage blockage is prevented, but water consumption is excessive and flushing noise is large
Solution Approach 1:
The flushing process is divided into multiple stages: pre-flush stage (water flow blocks sewage), flushing stage (sewage is pushed out), and post-flush stage (water seal is restored). This segmentation allows using smaller water quantities at different stages rather than one large discharge, reducing total water consumption while maintaining blockage prevention.
Solution Approach 2:
Before the main flushing action, a pre-flush water flow is released to block the sewage and guide it toward the outlet. This preliminary action prepares the system for efficient flushing with less water by preventing sewage from spreading and reducing the force needed for the main flush.
2Productivity
If one-time large-force flushing is used, then sewage is cleared quickly, but flushing noise is large and water is splashed to the user
Solution Approach 1:
The flushing action is segmented into controlled stages with water flow blocking sewage first, then gradually pushing it out. This prevents sudden large-force discharge that causes noise and splashing, while still achieving quick sewage removal through coordinated water flow and blockage management.
Solution Approach 2:
A water flow is released in advance to block the sewage and guide it toward the outlet before the main flushing force is applied. This preliminary blocking action prevents sewage from splashing toward the user and reduces the need for large-force flushing, thereby reducing noise and splashing.
3Reliability
If water tank is arranged above the toilet, then flushing water is available, but the toilet height and length are increased affecting small-area washroom layout
Solution Approach 1:
The water tank is extracted from the traditional position above the toilet and relocated to the washbasin area. This allows the toilet to maintain flushing water availability while reducing the toilet's own volume and footprint, making it suitable for small-area washrooms.
Solution Approach 2:
The washbasin water storage system serves dual purposes: it stores water for washbasin use and provides flushing water for the toilet. This multi-functionality eliminates the need for a separate water tank above the toilet, reducing the toilet's volume while maintaining flushing capability.
4Volume of moving object
If intelligent toilet without water tank is used, then space is saved, but high water pressure is required and sewage may not be flushed when water pressure is low
Solution Approach 1:
The system uses the washbasin's own water storage and drainage system to provide flushing water for the toilet. This self-service arrangement eliminates the need for external high water pressure, as the washbasin's water supply and drainage infrastructure is used to flush the toilet, ensuring reliable operation regardless of main water pressure variations.
5Reliability
If trap inner diameter and water seal section are enlarged, then sewage blockage is prevented, but water consumption increases when flushing
Solution Approach 1:
The flushing process is segmented into stages where water flow blocks sewage first, then gradually pushes it out through the trap. This allows using smaller water quantities at different stages rather than one large discharge, reducing total water consumption while maintaining adequate trap dimensions for blockage prevention.
Solution Approach 2:
Water flow is released in advance to block and guide sewage toward the trap outlet before the main flushing force is applied. This preliminary action ensures that when water is discharged, it efficiently pushes sewage through the trap with minimal water consumption, while the trap's dimensions remain optimized for preventing blockages.
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
Reduces water consumption, prevents sewage splashing and odor, eliminates the need for high water pressure, and provides a compact design suitable for both sitting and squatting, while ensuring effective sewage disposal without manual frequent flushing.
Implementation Method 1
By means of kinetic energy generated when sewage falls, timely cooperation between flushing water flow blocking and flushing
Implementation Method 2
a water sealing surface of the trap 4 is located below the sewage receiving area 6
Data Source
AI summary
Disclosed are a flushing method for a toilet, and a flushing toilet. A toilet bowl (1) is provided at the lower end thereof with a trap (4), a sewage receiving area (6), is provided on a side, of the upper end of the trap (4) and in an area with a certain height; a water flushing port (7) is provided in the upper end of the sewage receiving area (6); and a water storage cavity (5) is formed among a toilet body (2), the toilet bowl (1) and a toilet bottom (3), a water inlet system is arranged at the rear end of the water storage cavity (5), the water flushing port (7) is in communication with the water storage cavity (5), and a water valve and a water valve control device are arranged at an intake end of the flushing port (7).