Hydraulic Outlet Fitting with Adjustable Control Passages
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Solution Overview
Problem
Existing hydraulic drain valves cannot adjust the flushing quantity effectively, limiting the control over partial and full-volume flush operations.
Innovation Solution
A hydraulically controllable drain fitting with adjustable partial and full quantity control passages, featuring a float chamber, a sealing element, and adjustable elements that allow for precise adjustment of flushing water volume by altering the height of the control passages, enabling active control over flushing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hydraulic drain valve is used with fixed control passages, then the structure is simple and reliable, but the flushing volume cannot be adjusted or is only adjustable to a limited extent
Solution Approach 1:
The patent applies the dynamics principle by making the control passages adjustable in height relative to the valve seat. The adjustment element allows the partial-flow control passage and full-flow control passage to be positioned at different heights, enabling dynamic adaptation of the flushing volume. This transforms a static structure into a dynamic one that can be modified according to different flushing requirements.
Solution Approach 2:
The patent implements parameter changes by allowing the height parameter of the control passages to be varied. The adjustment element changes the vertical position of the control passages relative to the valve seat, which directly alters the flushing volume. This parameter change enables the system to adapt to different flushing needs while maintaining a relatively simple overall structure.
2Measurement precision
If the control passages are made adjustable in height, then the flushing volume can be precisely controlled, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the control function into separate passages: a partial-flow control passage and a full-flow control passage. Each passage can be independently adjusted in height, allowing precise control of different flushing volumes. This segmentation enables fine-tuned adjustment of flushing volume while keeping each individual passage relatively simple in structure.
Solution Approach 2:
The patent uses dynamics by implementing adjustable height for the control passages through the adjustment element. This dynamic adjustment capability allows the system to precisely control flushing volume by changing the vertical position of the passages, achieving precise measurement and control without requiring complex mechanical adjustment mechanisms.
3Adaptability or versatility
If adjustment elements are added to the control passages, then the adaptability of the system improves, but the number of components increases
Solution Approach 1:
The patent applies universality by designing the adjustment element to serve multiple functions: it adjusts the height of both the partial-flow control passage and the full-flow control passage. This multi-functional component reduces the need for separate adjustment mechanisms for each passage, thereby improving adaptability while minimizing the increase in component count.
Solution Approach 2:
The patent implements merging by combining the adjustment functionality for both control passages into a single adjustment element. This unified approach allows both the partial-flow and full-flow control passages to be adjusted simultaneously or independently through one component, reducing the overall number of parts while maintaining high adaptability.
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
Enables easy adjustment of flushing water volume during partial and full flush operations, enhancing control and efficiency in cistern drainage systems.
Implementation Method 1
the float is movable within the float chamber along the axis of movement and cooperates hydraulically with it
Implementation Method 2
air from areas outside the float chamber can enter through these passages, thus equalizing the pressure between the float chamber and the areas outside
Implementation Method 3
Once the flushing water level surrounding the drain assembly has dropped to the height of the corresponding passage, air from areas outside the float chamber can enter through these passages, thus equalizing the pressure
Data Source
Figure 1
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AI summary
A hydraulically controlled flushing assembly (1) for a cistern, comprising a valve body (2) with a sealing element (4) cooperating with a valve seat (3) and a float (5), wherein the valve body (2) with the sealing element (4) is movable from the valve seat (3) along an axis of movement (B) from a rest position to a flushing position and from the flushing position to the rest position, and a float chamber (6) with an opening (26) through which the valve body (2) extends, wherein the float (5) is movable within the float chamber along the axis of movement (B) and hydraulically cooperates with it, wherein the float chamber (6) has a full-flow control passage (7) and a partial-flow control passage (8) through which, as soon as a flushing water level surrounding the flushing assembly (1) has dropped to the height of the corresponding passage (7, 8),Air from areas (9) outside the float chamber can enter the float chamber (6) such that the pressure conditions between the float chamber (6) and the areas (9) outside the float chamber (6) can be equalized, wherein the float (5) can be moved from the flushing position to the rest position when the pressure conditions are equalized, wherein the drain assembly (1) further comprises a partial volume control unit (10) with a closing element (11) for actively controlling the partial volume control passage (8), characterized in that an adjusting element (12) is arranged in the area of the partial volume control passage (8), with which the height of the partial volume control passage (8) relevant for the closing movement during partial volume flushing can be adjusted relative to the valve seat (3).