Hydrant Nozzle Cap Adapter With Adapter Ring for Nozzle Compatibility
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Solution Overview
Problem
Fire hydrant nozzle caps configured for one style of nozzle connection often cannot be used with different styles, limiting compatibility and versatility.
Innovation Solution
A nozzle cap adapter with an adapter ring and nozzle connector that can engage various nozzle styles, such as U.S. Storz, allowing for secure mounting and sealing across different nozzle connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a nozzle cap is configured for one specific style of nozzle connection, then it can securely connect to that particular nozzle type, but it cannot be used with other nozzle styles, reducing compatibility
Solution Approach 1:
The adapter ring serves as an intermediary component between the nozzle cap and various nozzle styles. The adapter ring can be configured with different engagement features (such as threaded interiors, bayonet-style interiors, or other coupling mechanisms) that match specific nozzle types, while the nozzle cap connects to the adapter ring through a standardized interface. This mediator approach allows a single nozzle cap design to work with multiple nozzle styles by simply changing the adapter ring configuration.
Solution Approach 2:
The adapter ring is designed to perform multiple functions: it can be configured with different internal threading patterns, engagement mechanisms, or connection geometries to accommodate various nozzle styles (e.g., NPT, BSPT, bayonet, threaded). By making the adapter ring multi-functional rather than the entire nozzle cap assembly, the system achieves versatility while maintaining a consistent outer interface with the nozzle cap.
2Adaptability or versatility
If a nozzle cap is designed to fit multiple nozzle styles, then compatibility is improved, but the structure becomes more complex
Solution Approach 1:
The connection system is segmented into two independent components: the nozzle cap and the adapter ring. The nozzle cap maintains a simple, standardized connection interface, while the adapter ring contains the variable geometry needed for different nozzle styles. This segmentation allows each component to be optimized independently - the nozzle cap for simplicity and the adapter ring for adaptability - rather than combining all complexity into a single multi-style nozzle cap.
3Reliability
If a latch mechanism is added to securely lock the adapter onto the nozzle, then connection reliability is improved, but the device complexity increases
Solution Approach 1:
The latch mechanism is designed to automatically engage and lock when the adapter ring is properly positioned on the nozzle. The latch may use spring-loaded arms, cam-actuated locking surfaces, or interference-fit features that self-engage upon insertion, eliminating the need for manual locking operations. This self-service approach provides reliable locking without adding complex control systems or multiple operating steps.
Data Source
AI summary
Example aspects of a nozzle cap adapter, a nozzle cap assembly, and a method for method for mounting a nozzle cap to a fire hydrant nozzle are disclosed. The nozzle cap adapter can comprise an adapter ring defining a first adapter ring end, a second adapter ring end opposite the first adapter ring end, and an interior void extending from the first adapter ring end to the second adapter ring end; a nozzle connector extending from the second end of the adapter ring, the nozzle connector configured to rotatably engage a fire hydrant nozzle; and a latch coupled to the adapter ring and configured to removably lock the nozzle cap adapter onto the fire hydrant nozzle.