Pneumatic Signal 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 and complex electrical detection systems, which complicate the structure and functionality.
Innovation Solution
A pneumatic signal generating device comprising a valve sleeve, valve core, piston pin, and guiding assembly that uses compressed air to generate a pressure signal for detection without additional electrical elements, allowing for easier assembly and no increase in weight or volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electrical elements are mounted in the pneumatic tool to detect pressure or pressing times, then detection capability is improved, but device complexity increases due to additional wires and electrical components
Solution Approach 1:
The patent replaces electrical detection systems with a pneumatic signal generation system. Instead of using electrical elements, wires, and circuits to detect pressure and triggering actions, the invention uses a pneumatic valve mechanism that generates pressure signals through mechanical movement. The valve core and valve sleeve interact to modulate compressed air flow, creating detectable pressure variations that convey triggering information without requiring electrical components.
Solution Approach 2:
The invention utilizes pneumatic principles to encode and transmit triggering information through compressed air pressure variations. The valve mechanism modulates the pneumatic signal based on triggering actions, and this modulated pneumatic signal is then transmitted through existing pneumatic channels to the control unit, eliminating the need for separate electrical wiring and components.
2Measurement precision
If electrical elements and wires are added for detection functions, then measurement capability is improved, but weight increases
Solution Approach 1:
The patent eliminates electrical components (sensors, wires, circuits) that would add weight to the tool by substituting them with a pneumatic signal generation system. The valve mechanism uses only pneumatic and mechanical elements already present in the tool's air supply system, thereby achieving detection functionality without increasing weight.
Solution Approach 2:
The system uses the existing compressed air supply and valve mechanism to generate detection signals, rather than requiring separate dedicated detection components. The pneumatic signal is generated by modulating the same air flow that powers the tool, making the detection function serve itself using existing resources without adding additional weight.
3Loss of information
If electrical elements are installed for detection, then information detection is improved, but manufacturing complexity increases due to additional assembly requirements
Solution Approach 1:
The patent replaces complex electrical assembly (sensors, wires, connectors, circuits) with a simple pneumatic valve mechanism that can be integrated into existing tool structures. The valve core and valve sleeve are standard pneumatic components that can be assembled using conventional pneumatic tool manufacturing processes, significantly simplifying manufacturing and assembly.
Solution Approach 2:
The valve mechanism serves multiple functions: it controls the pneumatic power supply to the actuator and simultaneously generates the pneumatic signal for triggering detection. This multi-functionality eliminates the need for separate detection components, reducing assembly steps and simplifying manufacturing processes.
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 straightforward detection of pressure and trigger assembly pressing times using compressed air, eliminating the need for additional electrical components and simplifying the tool's structure while maintaining functionality.
Implementation Method 1
the piston pin is mounted moveably in the axial hole in the valve core... enables straightforward detection of pressure and trigger assembly pressing times using compressed air
Implementation Method 2
The valve core is mounted rotatably in the sleeve chamber of the valve sleeve and has an axial hole and an annular groove
Implementation Method 3
The guiding tube is connected with the signal member and communicates with the passage in the signal member... enables straightforward detection of pressure and trigger assembly pressing times using compressed air
Data Source
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AI summary
A pneumatic generating device has a valve sleeve (20), a valve core (30), a piston pin (40), and a guiding assembly (50). The valve sleeve (20) has a sleeve chamber (21) and an input end (26). The valve core (30) is mounted rotatably in the valve sleeve (20) and has an axial hole (34) and an annular groove (35). The annular groove (35) is defined around the valve core (30). The piston pin (40) is mounted moveably in the axial hole (34) and has an end extending out of the input end (26) of the valve sleeve (20) and combined with a sealing cap (41). The guiding assembly (50) is combined rotatably with the valve core (30) and has a signal member (52) and a guiding tube (53). The signal member (52) is held in the annular groove (35) and has a passage (525) communicating with the sleeve chamber (21). The guiding tube (54) is connected with signal member (52) and communicates with the passage (525).