Siphon Flush Mechanism for Reliable, Low-Complexity Toilets
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Solution Overview
Problem
Existing flushing mechanisms for sanitary vessels are complex, unreliable, and costly, requiring numerous components and mechanical systems that are difficult to maintain.
Innovation Solution
A siphon flush system with a tray and siphon device that uses a predetermined pressure difference to passively flush liquid, controlled by a tap, and includes a float to prevent overflow, with optional mechanisms for regulating the flushed amount.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mechanical flushing mechanisms are used, then flushing function is achieved, but device complexity increases and reliability decreases
Solution Approach 1:
The patent extracts the complex mechanical components from the flushing system and replaces them with a simple siphon device that operates automatically based on pressure differential. The siphon mechanism eliminates the need for motors, solenoids, and complex linkages, achieving reliable operation with minimal moving parts.
Solution Approach 2:
The patent replaces the traditional mechanical flushing system with a pressure-based siphon mechanism. Instead of using motor-driven pumps or solenoid-controlled valves, the system uses the natural pressure differential between the water supply and the tray to activate the siphon, which then automatically flushes the tray contents through its geometric design.
2Ease of repair
If traditional flushing mechanisms are used, then flushing function is achieved, but maintenance difficulty increases
Solution Approach 1:
The patent removes complex mechanical components that require maintenance from the flushing system. The siphon device consists of simple geometric elements with no moving parts, eliminating the need for motor maintenance, valve replacement, or mechanical linkage adjustment, thereby dramatically improving ease of repair.
3Productivity
If pressure differential is used to activate siphon, then flushing efficiency improves, but pressure control complexity increases
Solution Approach 1:
The siphon device is designed to automatically respond to pressure differential without requiring external control systems. When water pressure exceeds the threshold, the siphon activates automatically and maintains operation as long as the pressure differential persists, eliminating the need for pressure sensors, control valves, or electronic regulation mechanisms.
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
Provides a simplified, reliable, and cost-effective flushing solution that maintains consistent operation with adjustable liquid levels, reducing maintenance needs.
Implementation Method 1
The siphon includes an initial ascending portion having a first free terminal end, thereat the collection of the wasting liquid from the inside of the tray takes place, and a final descending portion having a second free terminal end, therefrom the liquid exits from the tray.
Implementation Method 2
when a flow of water - or of wasting liquid - is supplied from the water supply - or from the tank - to the siphon, until it exits out of the tray through the outlet section, a decrease in the pressure inside the siphon takes place, therefore the wasting liquid contained in the tray which is at the first free terminal end is prompted to the second free terminal end
Implementation Method 3
The cassette further includes inside thereof a float of 'traditional' type, configured to check the level of water (or other liquid) in the tray, by avoiding overflow conditions
Data Source
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AI summary
The present invention relates to a toilet flush system (1000), comprising: • a tray (1) configured to hold a wasting liquid, • a siphon device (2) having a "U" shape and arranged with the concavity facing downwards, including - an ascending portion (22) with an inlet section (21) of the wasting liquid placed at a first height (h1), above the bottom of the tray (1), and - a descending portion (23), with an outlet section (24) of the wasting liquid placed at a second height (h2), at the bottom of the tray (1); • drainage means (15) configured to establish selectively a fluidic connection between a water supply or a wasting liquid tank and the descending portion (23) of the siphon device (2), so that a flow of water or wasting liquid could be supplied from the water mains or from the tank to the siphon device (2), until it exits out of the tray (1) through the outlet section (24), wherein the difference in elevation between the first (h1) and the second height (h2) is such that the flowing of the above-mentioned flow causes a decrease in pressure inside the siphon device (2), therefore the wasting liquid contained in the tray (1) which is at the inlet section (21) is prompted to the outlet section (24). Moreover, the system (1000) according to the present invention comprises a mechanism for regulating the amount of wasting fluid to be expelled from the tray (1). Such mechanism exploits the fluidic communication, which can be established selectively, between an internal portion of the tray (1), selected so that it is at the minimum height of the residual liquid desired after a flush activity, and an upper portion of the siphon device (2). When the level of the wasting liquid is lower than the above-mentioned minimum height, the pressure distribution in the tray (1) is such as to cause the cessation of the flow of wasting liquid from the inlet section (21) towards the outlet section (24), since the pressures at the two sections are balanced.