Air Pump Relief Valve for Trace Air Pressure Adjustment
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Solution Overview
Problem
Existing air pumps lack fine adjustment capabilities for pressure relief, making it difficult to control the amount of pressure decrease when pressure exceeds a predetermined value.
Innovation Solution
A relief device with a main body and a discharge passage that includes a valve device with two sealing portions, allowing for precise control over air discharge by moving between engagement positions, enabling the dispensing of a trace amount of air from the air pump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pressure relief device is activated to decrease the pressure of the air pump, then the pressure is reduced, but the user cannot achieve fine adjustment of the pressure decrease amount
Solution Approach 1:
The valve device is divided into multiple sealing portions (first sealing portion and second sealing portion) that can selectively engage with the discharge passage at different positions. This segmentation allows the valve to provide discrete levels of opening, enabling fine adjustment of the pressure relief amount while maintaining simple operation through a single valve actuation mechanism.
2Productivity
If the discharge passage is completely opened to relieve pressure quickly, then pressure decreases rapidly, but it is difficult to control the amount of pressure decrease
Solution Approach 1:
The valve device can dynamically adjust its position between fully closed, partially open (first sealing portion engaged), and fully open (second sealing portion engaged) states. This dynamic positioning capability allows the system to respond to different pressure conditions with appropriate relief rates, achieving both rapid pressure relief when needed and precise control when fine adjustment is required.
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 and control of air discharge, allowing for effective pressure management and fine tuning of pressure relief in air pumps.
Implementation Method 1
The valve device includes a first sealing portion and a second sealing portion selectively engaging with the discharge passage to prevent air discharged to the outside of the main body through the discharge passage
Data Source
AI summary
A relief device in air pump includes a main body defining an interior space and a discharge passage fluidly communicating with the interior space. The discharge passage is selectively closed and opened by a valve device. The valve device is movable in the discharge passage. The valve device includes a first sealing portion and a second sealing portion selectively engaging with the discharge passage. The valve device is movable between a first position in which one of the first and the second sealing portions engages with the discharge passage and a second position in which the other of the first and the second sealing portion engages with the discharge passage. The discharge passage has a length measuring from the first end to the second end thereof, which is smaller than a length which measures a separation distance between the first and the second sealing portions.