Hose Coupling Locking Assembly for Leak-Safe Nut Access

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Solution Overview

Problem

Existing hose coupling systems with locking devices require complete dismantling to access and adjust the threading of nuts, making it impossible to fix issues like fluid leaks without disassembling the entire connection.

Innovation Solution

A system with a locking device that interlocks hose coupling nipples instead of revolving nuts, allowing for easy assembly and dismantling while maintaining the seal integrity and enabling access to the revolving nuts without removing the locking device, using a central locking section and annular bodies with internal apertures to secure the hose couplings and connector.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a locking device is used to interlock hose coupling nipples, then the connection stability is improved and rotation is prevented, but the ease of maintenance deteriorates because complete dismantling is required to access the threading of nuts

Engineering Contradiction:
Improveconnection stabilityVSAvoidease of maintenance
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The locking device is segmented into multiple independent locking elements (first locking element for the first hose coupling, second locking element for the second hose coupling) that can be independently accessed and manipulated. This segmentation allows maintenance personnel to access and adjust individual nut threadings without completely dismantling the entire locking mechanism, thereby improving ease of maintenance while maintaining connection stability.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the locking device completely secures the hose couplings, then the reliability of the connection is improved, but the adaptability for maintenance access deteriorates

Engineering Contradiction:
Improvereliability of connectionVSAvoidadaptability for maintenance access
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The locking device incorporates intermediary access mechanisms that allow maintenance personnel to access the threading of nuts through the locked structure. The first and second locking elements are designed with access features that enable adjustment and maintenance of the revolving nuts without completely removing the locking device, thus maintaining both connection reliability and maintenance adaptability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Loss of substance

If the hose couplings are fully locked to prevent rotation, then the loss of fluid is reduced, but the time required for maintenance increases

Engineering Contradiction:
Improveloss of fluidVSAvoidmaintenance time
Core Design Contradiction:
Loss of substanceVSLoss of time

Solution Approach 1:

The locking device is divided into separable locking elements that can be independently accessed. This segmentation enables quick maintenance operations where only specific locking elements need to be adjusted or accessed, rather than completely dismantling the entire locking mechanism, thereby reducing maintenance time while preventing fluid loss through secure locking.

Inventive Principle:
Principle #1Segmentation

4Strength

If the locking device uses complex interlocking mechanisms, then the strength of the connection is improved, but the ease of manufacture deteriorates

Engineering Contradiction:
Improvestrength of connectionVSAvoidease of manufacture
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The locking device employs multiple simple locking elements rather than a single complex mechanism. Each locking element (first locking element, second locking element) is designed with simple geometric features (such as hexagonal profiles) that are easy to manufacture using standard machining processes, while the combination of multiple elements provides strong, reliable connection strength.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11415248B2System and method for connecting a first and second hose coupling, and a locking device
Publication Date: 2022.08.16 PRYSMIAN CABOS E SISTEMAS DO BRASIL SA
  • US11415248B2 patent drawing
  • US11415248B2 patent drawing
  • US11415248B2 patent drawing

AI summary

A system includes first and second hose couplings, each having a hose body, an enlarged section integrated with the hose body, and a connecting section that is mobile in relation to the hose body. An intermediate connector includes a central section, a first lateral section and a second lateral section. The first lateral section can fit into the first connecting section and the second lateral section can fit into the second connecting section. A locking device includes a body having a first locking section, a second locking section and a central locking section. The first locking section couples with the enlarged section of the first hose coupling, the second locking section couples with the enlarged section of the second hose coupling, and the central locking section couples with the central section of the connector.