Rotatable Hose Adapter Structure to Prevent Hose Winding
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Solution Overview
Problem
Conventional hose adapters cause trouble in use and assembly due to synchronous rotation of the hose with the water source, leading to loosening and damage during connection.
Innovation Solution
A hose adapter design featuring an outer tube with a first through hole and inner tube with a lock hole, along with a hose connector and O-rings, allowing the inner tube, hose connector, and hose to remain stationary while the outer tube rotates, preventing winding and enabling slidable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hose is locked on the water source, then the connection is secure, but the hose is driven and synchronously rotated causing trouble in use and assembly
Solution Approach 1:
The adapter is divided into an outer tube and an inner tube that can rotate independently. The outer tube connects to the water source while the inner tube connects to the hose, allowing the hose assembly to remain stationary while the outer tube rotates during connection, preventing hose winding and synchronous rotation problems.
Solution Approach 2:
The inner tube acts as an intermediary between the outer tube and the hose. It provides a stationary connection point for the hose while allowing the outer tube to rotate freely during assembly, thus preventing the hose from being driven and rotated synchronously with the water source connection.
2Reliability
If the hose is locked on the water source, then the connection is secure, but loosening and damages of the main body occur
Solution Approach 1:
By segmenting the adapter into outer and inner tubes with independent rotation capabilities, the mechanical stress and torque during connection and loosening operations are isolated to the outer tube only. The inner tube and main body remain stationary and free from rotational damage, improving overall durability.
3Stability of the object's composition
If the outer tube and inner tube are tightly connected, then structural stability is improved, but the connection gets stuck and cannot rotate
Solution Approach 1:
The connection between outer and inner tubes is designed with localized contact areas (inner peripheral ring and expanding ring portion) rather than full-surface contact. This provides sufficient structural stability at the contact points while allowing free rotation of the inner tube relative to the outer tube, preventing sticking.
Data Source
AI summary
A hose adapter may include an outer tube, an inner tube, a hose connector, and a hose. An inner peripheral ring protrudes from the inner periphery of the outer tube while an expanding ring portion protrudes from the outer periphery of an end of the inner tube. The outer periphery of the inner tube further has a first peripheral recess, a second peripheral recess, and a first outer thread, and a first O-ring and a second O-ring are respectively disposed on the first peripheral recess and the second peripheral recess. The inner tube is inserted into the outer tube, and the expanding ring portion is abutted against the inner peripheral ring, and the first O-ring is coupled between the outer tube and the inner tube while the second O-ring and the first outer thread are adapted to pass through and be exposed out of the outer tube.