Pneumatic Signal Generating Device for Pressure Detection
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Solution Overview
Problem
Conventional pneumatic tools face challenges in detecting air pressure stability and trigger assembly pressing times due to unstable compressed air pressure, making it difficult to monitor and control their operation effectively.
Innovation Solution
A pneumatic signal generating device comprising a valve sleeve, valve core, piston pin, and guiding assembly that allows for the detection of compressed air pressure and trigger assembly pressing times by routing compressed air as a pressure signal through a guiding tube and signal member, eliminating the need for additional electrical elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pneumatic tools use compressed air as power source, then the tool can operate, but the pressure of compressed air is unstable and cannot be easily detected
Solution Approach 1:
The patent introduces an intermediary pneumatic signal generation system that mediates between the unstable compressed air supply and the need for stable pressure detection. The valve core, piston pin, and guiding assembly act as intermediary components that convert unstable compressed air into detectable pneumatic signals, allowing pressure information to be obtained without directly measuring the unstable compressed air pressure.
Solution Approach 2:
The patent applies pneumatic principles by using compressed air itself as the detection medium. The pneumatic signal generating device uses the compressed air flow to drive the valve core and piston pin, creating pneumatic signals that carry pressure information. This eliminates the need for electrical sensors and allows pressure detection through pneumatic means alone.
2Measurement precision
If electrical elements are added to detect pressure and trigger times, then detection capability is improved, but the weight and volume of the pneumatic tool increase
Solution Approach 1:
The patent replaces electrical detection elements with a purely pneumatic detection system. The valve core, piston pin, and guiding assembly work together to generate pneumatic signals that can be detected without electrical components. This maintains measurement precision while avoiding the weight and volume increase that would result from adding electrical sensors, wires, and power sources.
Solution Approach 2:
The pneumatic signal generating device uses the compressed air supply itself to power the detection mechanism. The compressed air flow directly drives the valve core and piston pin to generate detection signals, eliminating the need for separate power sources and electrical systems. The system serves itself by using its own operating medium for both power and detection functions.
3Measurement precision
If electrical elements are added to detect pressure and trigger times, then detection capability is improved, but the device complexity increases
Solution Approach 1:
The patent simplifies the detection system by using purely pneumatic components instead of electrical elements. The valve core, piston pin, and guiding assembly form a simple mechanical-pneumatic system that converts pressure and trigger information into detectable pneumatic signals. This approach reduces device complexity by eliminating electrical circuits, sensors, and associated complexity while maintaining detection precision.
Solution Approach 2:
The pneumatic signal generating device performs multiple functions with a single integrated mechanism. The valve core and piston pin assembly simultaneously responds to both pressure changes and trigger assembly activation, generating unified pneumatic signals for both detection purposes. This multi-functionality reduces overall system complexity compared to having separate electrical sensors for each parameter.
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 detection of air pressure and trigger assembly pressing times without increasing the weight or volume of the pneumatic tool, allowing for improved operational monitoring and control.
Implementation Method 1
The valve core is mounted rotatably in the sleeve chamber of the valve sleeve
Implementation Method 2
The valve core... has an axial hole and an annular groove... The signal member... has a passage defined in the signal member and communicating with the sleeve chamber of the valve sleeve
Implementation Method 3
The piston pin is mounted moveably in the axial hole in the valve core... enables easy detection of air pressure
Implementation Method 4
The guiding tube is connected with the signal member and communicates with the passage in the signal member... routing compressed air as a pressure signal through a guiding tube
Data Source
AI summary
A pneumatic generating device has a valve sleeve, a valve core, a piston pin, and a guiding assembly. The valve sleeve has a sleeve chamber and an input end. The valve core is mounted rotatably in the valve sleeve and has an axial hole and an annular groove. The annular groove is defined around the valve core. The piston pin is mounted moveably in the axial hole and has an end extending out of the input end of the valve sleeve and combined with a sealing cap. The guiding assembly is combined rotatably with the valve core and has a signal member and a guiding tube. The signal member is held in the annular groove in the valve core and has a passage communicating with the sleeve chamber. The guiding tube is connected with signal member and communicates with the passage in the signal member.