Flexible Hose Connector With Split Bush And Barbed Grip
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Solution Overview
Problem
Existing devices for connecting flexible hoses cannot withstand high pressure and are not practical for fitting and removal, as they often slip off or break, and they do not accommodate hoses with different outside diameters effectively.
Innovation Solution
A flexible hose connecting device with a radially internal tubular element and a radially external threaded cylindrical member that securely grips hoses of varying outside diameters, using a split bush and seal to ensure a tight, watertight connection that can withstand high pressure and is easy to fit and remove.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a metal clamp and adapter are used to connect hoses with different outside diameters, then adaptability is improved, but reliability deteriorates because the connection cannot withstand high pressure
Solution Approach 1:
The invention uses a nested structure where the radially internal tubular element is inserted inside the hose, and the radially external cylindrical member surrounds the tubular element. This nested arrangement creates a secure multi-layer connection that can accommodate different hose outer diameters while maintaining high pressure resistance through the cooperative action of both elements.
Solution Approach 2:
The invention applies different functional qualities to different parts: the radially internal tubular element provides a smooth bore for fluid flow and seals against the hose inner surface, while the radially external cylindrical member provides the gripping function with barbs that engage the hose outer surface. This division of functions allows each element to be optimized for its specific role, achieving both adaptability and reliability.
2Reliability
If the adapter is pressed hard into the hose to guarantee a good seal, then sealing performance is improved, but ease of operation deteriorates because fitting and removal become impractical
Solution Approach 1:
The invention divides the connection device into two separate functional elements: the radially internal tubular element that provides the seal, and the radially external cylindrical member with barbs that provides the mechanical grip. This segmentation allows the sealing element to be smooth and easy to insert, while the gripping element provides secure attachment without requiring excessive insertion force, thus improving ease of operation while maintaining seal quality.
3Ease of operation
If quick connect fittings with tooth-like features are used, then ease of operation is improved, but reliability deteriorates because they break hoses with larger diameters
Solution Approach 1:
The radially external cylindrical member is designed with a universal gripping mechanism featuring barbs that can accommodate hoses of various outer diameters. The barbed structure provides mechanical engagement similar to tooth-like features but with adjustable geometry that adapts to different hose sizes, making the connection device universal while maintaining reliability across various hose dimensions.
Data Source
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AI summary
A device for connecting flexible hoses comprises a connecting member (2) having a tubular element (4) that can be inserted into a flexible hose (T) . The tubular element (4) and a radially external threaded cylindrical member (5) together delimit an annular seat (7) designed to accommodate an end (T1) of the flexible hose (T) . A threaded ring (10) can be screwed onto the cylindrical member (5) and accommodates a split bush (15) having a working surface (16) engaged with a working surface (14) of the ring (10) . By turning the threaded ring (10) , the split bush (15) can be moved between a position where it is axially spaced from the threaded cylindrical member (5) and a position where it is axially close to the threaded cylindrical member (5) and where an interposed seal (18) between the cylindrical member (5) and the bush (15) adopts a radially inwardly deformed condition such as to tighten it around the flexible hose (T) .