Fire Extinguisher Nozzle Integrated Quick Connect Air Fitting
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Solution Overview
Problem
Existing pressurized water fire extinguishers require a pressurizing valve or adapter for recharging, which are prone to leaks or physical damage, making the recharging process inefficient and unreliable.
Innovation Solution
A pressurized water extinguisher equipped with a spray nozzle configured to interface with a quick connect air fitting, allowing for recharging without the need for an adapter or air valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressurizing valve or adapter is used for recharging, then the extinguisher can be recharged, but the system becomes prone to leaks or physical damage
Solution Approach 1:
The patent removes the pressurizing valve from the extinguisher body and eliminates the need for adapters by integrating the quick connect air fitting directly into the spray nozzle assembly. This extraction of the problematic pressurizing valve component while maintaining recharging capability through the nozzle interface resolves the contradiction between recharging reliability and device complexity.
Solution Approach 2:
The spray nozzle is designed to serve dual functions: fire suppression discharge and pressurized air intake during recharging. By making the nozzle multi-functional with an integrated quick connect air fitting, the system eliminates separate pressurizing components while maintaining both operational functions, thereby improving reliability without increasing complexity.
2Ease of operation
If adapters or pressurizing valves are used, then recharging is possible, but the risk of leaks and physical damage increases
Solution Approach 1:
The patent combines the quick connect air fitting with the spray nozzle assembly into a single integrated component. This merging eliminates the need for separate adapters and pressurizing valves that are prone to leaks and damage, while maintaining ease of operation through the simplified direct connection interface.
3Reliability
If a quick connect air fitting is integrated into the spray nozzle, then the need for adapters or pressurizing valves is eliminated, but the nozzle design becomes more complex
Solution Approach 1:
The spray nozzle is designed to serve dual functions: fire suppression discharge and pressurized air intake during recharging. By making the nozzle multi-functional with an integrated quick connect air fitting, the system eliminates separate pressurizing components while maintaining both operational functions, thereby improving reliability without significantly increasing complexity.
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 efficient and reliable recharging of pressurized water fire extinguishers by eliminating the need for adapters or pressurizing valves, reducing the risk of leaks and physical damage.
Implementation Method 1
compressed air is added to the extinguisher. When in use, a valve is opened that allows the compressed air to expand and force the water or water and foaming agent from the extinguisher
Implementation Method 2
force the water or water and foaming agent from the extinguisher via a hose or nozzle to be directed at the fire
Data Source
AI summary
A recharging nozzle, a fire extinguisher configured with a recharging nozzle, and a method of recharging a pressurized water fire extinguisher using the recharging nozzle where the recharging nozzle is configured to be insertable into an air pressure quick disconnect fitting connected to a source of pressurized air.