Liquid Hose Valve Connector for Damage-Free Mounting

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Solution Overview

Problem

Existing devices for connecting liquid hoses to valves often interfere and become damaged when passing through mounting openings in sanitary fittings, making the connection process difficult and prone to damage.

Innovation Solution

A device with a first thread for attachment to the valve, a receiving opening for the liquid hose, and a fastening device with a recess and securing sleeve to securely fasten the hose without the need for union nuts or compression fittings, allowing for easy attachment and preventing interference during screwing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional union nuts or compression fittings are used on fluid hoses, then the hose can be securely connected to the valve, but the hose and fittings interfere with each other and become damaged when passing through mounting openings

Engineering Contradiction:
Improveconnection securityVSAvoidinstallation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connection system is divided into separate functional components: the device with receiving opening and fastening mechanism is separated from the hose, allowing the hose to pass through the mounting opening first, then be secured independently within the device housing

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hose is inserted into the receiving opening of the device housing, and the fastening element is inserted into the recess to secure the hose from the inside, creating a nested structure where the hose is contained within the device rather than connected externally with protruding fittings

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If union nuts or compression fittings are used on fluid hoses, then the hose can be connected to the valve, but the hose interferes with the tightening process and rotation during installation

Engineering Contradiction:
Improveconnection securityVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The problematic union nuts and compression fittings are extracted from the hose and replaced with a simplified system where the hose connects directly to the receiving opening of the device, eliminating the interfering external fastening components

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of fastening the hose to the valve first and then passing it through the mounting opening, the invention inverts the sequence by passing the hose through the opening first and then securing it within the device housing from the inside

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of operation

If the fluid hose is inserted into the receiving opening, then the connection is simplified, but the hose may become loose or detached without a secure fastening mechanism

Engineering Contradiction:
Improveconnection easeVSAvoidconnection security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The fastening element is pre-positioned in the recess of the device housing, ready to secure the hose as soon as it is inserted into the receiving opening, ensuring immediate fixation without requiring additional tightening operations

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The fastening element acts as an intermediary component that mediates between the hose and the device housing, providing secure retention by engaging the hose within the recess without requiring external nuts or fittings

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4111084B1Device for connecting a liquid hose to a valve
Publication Date: 2024.07.31 GROHE AG
  • EP4111084B1 patent drawingFigure 1~2
  • EP4111084B1 patent drawingFigure 3~4
  • EP4111084B1 patent drawingFigure 5~6

AI summary

A device (1) for connecting a liquid hose (2) to a valve (3), having at least: a) a first thread (4), with which the device (1) is fastenable to the valve (3); b) a receiving opening (5), into which the liquid hose (2) is insertable; and c) a fastening device (6), with which the liquid hose (2) is fastenable in the receiving opening (5). According to a further aspect of the invention, a liquid hose (2) and a valve (3) with a corresponding device are also proposed.