Adjustable Pressure Relief Valve for Inflatable Pool Overpressure
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Solution Overview
Problem
Existing pressure relief valves for inflatable pools have a complex structure and a fixed spring recovery force, limiting their ability to adjust pressure relief values based on actual needs, resulting in inadequate safety against high internal air pressure.
Innovation Solution
A pressure relief valve design featuring a valve seat and body with a movable diaphragm, adjustable spring compression, and a fixing part system that allows for customizable pressure relief, including a first and second spring seat configuration and a sealing gasket to prevent air leaks, enabling adjustable pressure relief without complex structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a spring with fixed recovery force is used in the pressure relief valve, then the valve structure is simple, but the pressure relief value cannot be adjusted based on actual needs
Solution Approach 1:
The patent implements adjustability by making the spring compression amount dynamic rather than fixed. The second spring seat is designed to be movable along the longitudinal direction of the valve diaphragm fixing part, allowing the compression amount of the spring to be adjusted. This enables the pressure relief valve to adapt to different pressure requirements while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent changes the parameter of spring compression amount to achieve pressure relief value adjustment. By allowing the second spring seat to move and limiting the spring compression amount to different degrees, the recovery force of the spring can be adjusted, thereby changing the pressure relief value to suit actual needs.
2Adaptability or versatility
If the spring compression amount is made adjustable, then the pressure relief value can be customized, but the valve structure becomes more complex
Solution Approach 1:
The second spring seat serves multiple functions: it limits the compression amount of the spring, provides an adjustment mechanism, and maintains structural integrity. By designing this single component to perform multiple roles, the patent achieves adjustability without proportionally increasing the overall structural complexity.
Solution Approach 2:
The first spring seat and second spring seat are nested within the valve diaphragm fixing part structure. The spring is positioned between these two spring seats, which are themselves integrated into the valve body. This nested arrangement allows for adjustment functionality while maintaining a compact and relatively simple overall structure.
3Reliability
If a movable diaphragm is used to control the vent hole, then the pressure relief response is improved, but the valve structure becomes more complex
Solution Approach 1:
The valve diaphragm is designed to automatically respond to pressure changes inside the inflatable pool. When internal pressure exceeds the set relief value, the diaphragm automatically opens the vent hole to release pressure, and automatically closes when pressure normalizes. This self-actuating mechanism improves reliability without requiring complex external control systems.
Solution Approach 2:
The valve diaphragm is integrated directly into the valve body structure, with the vent hole formed in the diaphragm itself. The spring is positioned within the same valve body to act on the diaphragm. This merging of components simplifies the overall structure while maintaining effective pressure relief response.
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 provides a customizable and effective pressure relief mechanism that can be adjusted to suit varying internal air pressures, enhancing safety by preventing inflatable pool explosions and damage from high pressure.
Implementation Method 1
a spring biased to push the valve diaphragm into the closed position
Implementation Method 2
the valve diaphragm moveable between a closed position in which the valve diaphragm closes the vent hole and an open position in which the valve diaphragm opens the vent hole
Data Source
AI summary
A pressure relief valve for an inflatable device, and an inflatable pool including the pressure relief valve are provided. The pressure relief valve includes: a valve seat configured to connect to the inflatable device; and a valve body. The valve body is disposed at least partially within the valve seat and includes a valve shell, comprising a vent hole therein, and a valve diaphragm arranged at a bottom of the valve shell. The valve diaphragm is moveable between a closed position in which the vent hole is closed and an open position in which the vent hole is open. The valve body further includes a spring and a valve diaphragm fixing part arranged around the vent hole. The valve shell and the valve diaphragm fixing part are connected to each other, and the spring is biased to push the valve diaphragm into the closed position.