Discharge Valve Single Shared Projecting Portion for Low Silhouette Toilets
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Solution Overview
Problem
Conventional discharge valve apparatuses for flush toilets have elongated valve body main shafts due to separate large-flush and small-flush projecting portions, making it difficult to accommodate low silhouette toilets.
Innovation Solution
A discharge valve apparatus with a single shared projecting portion for both small-flush and large-flush modes, where the valve body main shaft engages with different cam lock portions based on pull-up height, allowing for a shorter shaft length and lower height, enabling placement on low silhouette toilets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate large-flush and small-flush projecting portions are disposed on the valve body main shaft, then both flush modes can be implemented, but the valve body main shaft becomes elongated
Solution Approach 1:
The patent merges the large-flush projecting portion and small-flush projecting portion into a single integrated projecting portion on the valve body main shaft. This single projecting portion serves both flush modes by engaging with different cam members at different positions, thereby eliminating the need for separate projecting portions and reducing the overall length of the valve body main shaft.
Solution Approach 2:
The single projecting portion is designed to perform multiple functions: it engages with the large-flush cam member for large-flush mode operation and engages with the small-flush cam member for small-flush mode operation. This multi-functional design allows one component to replace what would traditionally require two separate components, thus solving the length issue while maintaining both flush mode capabilities.
2Adaptability or versatility
If the valve body main shaft is elongated to accommodate separate projecting portions, then both flush modes can be supported, but the height of the discharge valve apparatus increases
Solution Approach 1:
By combining the large-flush and small-flush projecting portions into a single integrated structure on the valve body main shaft, the patent reduces the vertical space required. This merging eliminates the need for the shaft to extend to accommodate separate projecting portions at different heights, thereby reducing the overall height of the discharge valve apparatus while maintaining support for both flush modes.
Solution Approach 2:
The single projecting portion is designed with multi-functionality to engage with both large-flush and small-flush cam members. This universal design allows the valve body main shaft to be shorter in height while still providing the necessary engagement points for both flush modes, thus solving the height contradiction.
3Length of stationary object
If the discharge valve apparatus height is reduced for low silhouette toilets, then installation on low silhouette toilets becomes possible, but separate projecting portions for dual flush modes cannot be accommodated
Solution Approach 1:
The patent merges the functionality of separate large-flush and small-flush projecting portions into a single integrated projecting portion. This integration allows the discharge valve apparatus to maintain a reduced height suitable for low silhouette toilets while still providing the necessary engagement mechanisms for both large-flush and small-flush modes through the single multi-functional projecting portion.
Solution Approach 2:
The single projecting portion is designed as a universal component that can engage with both large-flush and small-flush cam members. This multi-functionality enables the compact, low-height discharge valve apparatus to support dual flush modes without requiring the extended structure that would be needed for separate projecting portions.
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 allows for a compact discharge valve apparatus that can be installed on low silhouette toilets while maintaining functionality for both small-flush and large-flush modes, with precise adjustment of small-flush water amounts.
Implementation Method 1
a small-flush float mechanism (52) comprising a small-flush cam lock portion (94) formed to be engageable with the valve body main shaft (76), and a small-flush float (96) which is lowered with falling water level when a predetermined amount of small-flush water is discharged
Implementation Method 2
a large-flush float mechanism (54) comprising a large-flush cam lock portion (114) formed to be engageable with the valve body main shaft (76), and a large-flush float (110) which is lowered with falling water level when a predetermined amount of large-flush water is discharged
Data Source
AI summary
Problem: To provide a discharge valve apparatus able to be disposed on a flush toilet with a relatively low silhouette by shortening the length of the valve body main shaft and lowering the height of the discharge valve apparatus.Solution Means: A discharge valve apparatus having: a small-flush float mechanism and a large-flush float mechanism; wherein the valve body main shaft includes a single shared projecting portion which locks to the large-flush cam lock portion when the required amount of pull-up for the large-flush mode has been pulled up, and locks to the small-flush cam lock portion when the amount of pull-up required for the small-flush mode has been pulled up.