Adapter for a vacuum hose
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Solution Overview
Problem
Existing hose cuffs for central vacuum systems are not compatible with all inlet valves, leading to potential loss of suction or improper retention when connected to incompatible valves.
Innovation Solution
A hose cuff design featuring a first section for connection to a primary inlet valve and a second section for connection to a different secondary inlet valve, utilizing metal and nonmetal portions with seals to ensure secure engagement and maintain suction across various valve types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hose cuff is designed to interact with only one type of inlet valve, then the connection is secure and reliable for that specific valve type, but the hose cuff is not compatible with other inlet valve types, leading to potential loss of suction or improper retention
Solution Approach 1:
The hose cuff is divided into multiple functional sections: a first section with a first configuration for engaging with a first type of inlet valve, and a second section with a second configuration for engaging with a second type of inlet valve. Each section is optimized for its specific valve type, allowing the single hose cuff to reliably connect to multiple different valve configurations without compromising connection security
Solution Approach 2:
The hose cuff is designed with multi-functionality by incorporating both a first section and a second section that can interact with different inlet valve types. This universal design enables the same hose cuff to be used across various valve configurations (e.g., spring-loaded valves, cam-actuated valves, or other mechanisms), eliminating the need for multiple specialized hose cuffs and ensuring reliable retention regardless of the specific valve type encountered
2Reliability
If a locking mechanism is added to secure the hose to the inlet valve, then the hose retention is improved, but the device complexity increases and compatibility with different inlet valve types decreases
Solution Approach 1:
The hose cuff incorporates self-service retention features where the first section and second section are designed to automatically engage and secure to their respective inlet valve types without requiring external locking mechanisms. The cuff's geometry and material properties enable it to self-retain on the valve, eliminating the need for additional complex locking components while maintaining reliable hose retention across different valve types
Data Source
AI summary
An adapter is connected to a hose cuff on a vacuum hose for connection with two different inlet valves of a central vacuum system. The hose cuff may connect with a primary inlet valve and when the adapter is connected to the hose cuff, the adapter enables the vacuum hose to be coupled with a secondary inlet valve that is different from the primary inlet valve. There is a conductive material on the adapter that completes an electrical circuit by contacting two metal conductors or pins in the secondary inlet valve to activate the central vacuum system when the adapter completes the circuit.