Pipe End Connector with Radial Locking for Faster Sealed Clamping

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Solution Overview

Problem

Existing triclamps for connecting cable ends are difficult to open and close, especially when a single person is required, and their use with secondary interfaces complicates handling and increases time when dealing with toxic substances.

Innovation Solution

A connecting device featuring a support ring and a locking mechanism with a radially movable locking element, allowing easy insertion and secure closure of cable ends, even when space is limited, and optionally using a drive unit for automation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a triclamp is used to connect cable ends, then a standardized connection is achieved, but the connection and disconnection process becomes time-consuming and difficult to operate

Engineering Contradiction:
Improveconnection reliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking element is designed to be movable in the radial direction, transitioning between a locked position (pressing the cable ends together) and an unlocked position (releasing the cable ends). This dynamic mechanism allows simple operation while maintaining reliable connection, directly resolving the contradiction between connection reliability and ease of operation.

Inventive Principle:
Principle #15Dynamics

2Strength

If a triclamp is used for connecting cable ends, then connection strength is achieved, but the time required for opening and closing increases significantly

Engineering Contradiction:
Improveclamping forceVSAvoidconnection time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The connecting device is divided into separate functional components: a support ring that maintains cable end position and a locking device with a movable locking element that applies clamping force. This segmentation allows the locking element to be actuated independently and quickly without requiring manipulation of the entire clamp structure, reducing connection time while maintaining clamping force.

Inventive Principle:
Principle #1Segmentation

3Reliability

If secondary interfaces are used to enclose triclamps for toxic substance transport, then sealing is improved, but handling complexity and time expenditure increase

Engineering Contradiction:
Improvesealing reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support ring and locking device are combined into an integrated connecting device where the locking element's radial movement simultaneously achieves both connection and sealing functions. This merging eliminates the need for separate secondary interfaces, reducing device complexity while maintaining sealing reliability for toxic substance transport.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables faster and simpler connection and disconnection of cable ends, reducing time and effort, particularly suitable for handling toxic substances, and ensuring secure sealing.

Implementation Method 1

at least one locking element which is movably mounted in the support ring and/or in the locking device in the radial direction, wherein the locking element can be moved by means of the locking device between an open position in which the second end face with the first end face can be brought into contact with the first end face, and is adjustable to a closed position in which the locking element applies an axially acting closing force to the second back face, so that the second end face is pressed against the first end face

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP4305332B1Connecting device for connecting a first pipe end to a second pipe end
Publication Date: 2026.01.21 U CONSULTING GMBH
  • EP4305332B1 patent drawingFigure 1A~1B
  • EP4305332B1 patent drawingFigure 2A
  • EP4305332B1 patent drawingFigure 2B

AI summary

The present invention relates to a connecting device (10) for connecting a first pipe end (12) to a second pipe end (14), comprising a support ring (34) which can be made to abut the first rear face (20); a locking device (38), which can be releasably connected to the support ring (34), the support ring (34) or the locking device (38) in the assembled state projecting axially above the first end face (18) and forming a receiving opening (36) into which the second widened portion (22) can be introduced; at least one locking member (42), which is movably mounted in the support ring (34) and/or in the locking device (38) in the radial direction, said locking member (42) being adjustable by means of the locking device (38) between an open position, in which the second end face (24) can be made to abut the first end face (18), and a closed position, in which the locking member (42) applies an axially acting clamping force to the second rear face (26), so that the second end face (24) is pressed against the first end face (18).