Adjustable Pressure Valve In-Place Adjustment
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Solution Overview
Problem
Conventional pressure valves require disassembly to adjust preset outlet pressure, leading to a complex manufacturing process due to spring tolerance issues, where the desired pressure often differs from the preset pressure.
Innovation Solution
An adjustable pressure valve design featuring a valve body, an inactive cap with an inclined edge, and a rotatable active cap that slides inwardly or outwardly to compress or decompress an elastic element, allowing for adjustable preset outlet pressure without disassembly, utilizing the principles of Hooke's Law to offset the elastic force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional pressure valves use different springs to preset outlet pressure, then the preset pressure can be adjusted, but the manufacturing process becomes complicated due to disassembly requirements
Solution Approach 1:
The inactive cap is made movable relative to the valve body through a threaded connection with the adjustable cap. By rotating the adjustable cap, the inactive cap moves axially to compress or decompress the elastic element, dynamically adjusting the preset outlet pressure without disassembly. This transforms a static spring-based pressure setting into a dynamic adjustment mechanism.
Solution Approach 2:
The inactive cap serves as an intermediary component between the adjustable cap and the elastic element. It transmits the rotational motion from the adjustable cap into axial movement, which then compresses or decompresses the elastic element to adjust the preset pressure. This intermediary mechanism enables pressure adjustment without direct contact or disassembly of internal components.
2Ease of manufacture
If spring tolerance is not controlled, then manufacturing is easier, but the preset outlet pressure differs from desired outlet pressure
Solution Approach 1:
Instead of relying on precise spring selection to achieve the desired preset pressure, the invention changes the parameter of the elastic element's compression state. By adjusting the axial position of the inactive cap through rotation of the adjustable cap, the compression amount of the elastic element is changed, which directly alters the preset outlet pressure. This allows compensation for spring tolerance variations without requiring high-precision spring manufacturing.
Solution Approach 2:
The adjustable pressure valve performs self-adjustment of the preset outlet pressure through the user-operated adjustable cap. The system automatically compensates for spring tolerance issues by allowing the user to rotate the adjustable cap to achieve the desired pressure setting, eliminating the need for manual spring selection and disassembly-based adjustments during manufacturing.
3Manufacturing precision
If the valve is disassembled to adjust preset pressure, then pressure accuracy improves, but time consumption increases
Solution Approach 1:
The adjustment mechanism transforms a static, disassembly-required pressure setting into a dynamic, in-situ adjustment process. The threaded connection between the adjustable cap and valve body allows the inactive cap to move axially when the adjustable cap is rotated, enabling real-time compression or decompression of the elastic element without disassembling the valve. This reduces adjustment time from minutes of disassembly to seconds of rotation.
Solution Approach 2:
The adjustable cap acts as an external intermediary that provides access to the pressure adjustment function without requiring disassembly of the valve body. By threading into the valve body and engaging the inactive cap, it mediates between the user and the internal elastic element, enabling time-efficient pressure adjustment from the outside of the assembled valve.
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 precise adjustment of outlet pressure without disassembly, simplifying the manufacturing process and ensuring the preset pressure matches the desired pressure, while an indicator provides easy identification of adjustment results.
Implementation Method 1
A spring is mounted around the piston to urge the piston to move toward the outlet. When the outlet pressure is set at the preset pressure, the elastic force of the spring is offset by the outlet pressure
Implementation Method 2
the elastic element in the valve body is compressed more or less by the slide of the active cap to adjust the preset outlet pressure
Implementation Method 3
The active cap is mounted rotatably against the inactive cap and has an inclined edge abutting against the inclined edge of the inactive cap. When the active cap is rotated relative to the inactive cap, the inactive cap is pushed by the inclined edge of the active cap to slide inwardly or outwardly
Data Source
AI summary
An adjustable pressure valve has a valve body, an inactive cap and an active cap. The inactive cap is mounted in the outlet of the valve body, abuts against the piston in the valve body and has an inclined edge. The active cap is mounted rotatably against the inactive cap and has an inclined edge abutting against the inclined edge of the inactive cap. When the active cap is rotated relative to the inactive cap, the inactive cap is pushed by the inclined edge of the active cap to slide inwardly or outwardly. Then the elastic element in the valve body is compressed more or less by the slide of the active cap to adjust the preset outlet pressure without disassembling the adjustable pressure valve.