Aquarium Filter Selector Valve with Integrated Safety Mechanism
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Solution Overview
Problem
Existing selector valves for aquarium and pond filters have limited functionality and cannot perform additional functions beyond normal filtration and washing modes.
Innovation Solution
Incorporating a safety valve into the cursor of the selector valve to protect against overpressure, allowing the cursor to function as both a selector and safety valve, thereby enhancing functionality and reducing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate safety valve is added to the selector valve, then the filter is protected from overpressure, but the device complexity and number of components increase
Solution Approach 1:
The patent combines the safety valve functionality directly into the cursor of the selector valve. The cursor is designed with a safety valve passage, shutter element, and shutter seat, integrating two previously separate components into one unified structure. This merging reduces the total number of components while maintaining both selector and safety valve functions.
Solution Approach 2:
The cursor in the selector valve is given multiple functions: it serves as the moving element for selecting between filtration and washing modes, and simultaneously houses the safety valve mechanism with its own passage, shutter element, and shutter seat. This multi-functionality allows a single component to perform multiple protective and selective roles.
2Adaptability or versatility
If the selector valve is designed with only basic switching functionality, then the device structure remains simple, but the functionality is limited and cannot perform additional functions
Solution Approach 1:
The cursor is designed to perform multiple functions: it selects between filtration and washing modes through its positional movement, and simultaneously provides overpressure protection through the integrated safety valve mechanism. This multi-functionality enhances adaptability without requiring entirely separate systems.
Solution Approach 2:
By merging the safety valve mechanism into the cursor structure, the patent adds protective functionality to the existing selector valve. The safety valve passage, shutter element, and shutter seat are integrated into the cursor, allowing additional functionality while maintaining a unified device structure.
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 integrated safety valve functionality provides a compact, efficient solution that operates independently of the selector valve, offering triple functionality and ease of assembly, while protecting the filter from overpressure and allowing for indicator functionality.
Implementation Method 1
a spring (50) associated with the rod (43) and closed between a stop (46), integral with the rod (43), and a wall (39) opposite to the inlet mouth (38)
Implementation Method 2
The inlet mouth (38) is preferably formed in the valve body (12). The shutter element (40) is preferably formed in a central position of the cursor (20)
Data Source
AI summary
A selector valve of a pressure filter for aquariums or ponds comprises a valve body having a main liquid inlet opening (16), a secondary inlet opening (17), an outlet opening (18) and a discharge opening (19), a cursor (20) housed in the valve body (12), having a passage for the liquid (21) and being selectively moveable between a first position, corresponding to the filtration mode of the filter (11), wherein the main liquid inlet opening (16) is placed in fluid communication with the outlet opening (18), and a second position, corresponding to the washing mode, wherein the secondary inlet opening (17) is in fluid communication with the discharge opening (19), and a safety valve (36) included in the cursor (20) to protect the pressure filter in case of superpressure of the liquid.