Pipe Liner Insertion Drum With Swappable Positioning Attachments

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Solution Overview

Problem

Existing methods require multiple devices to insert and position pipe linings into pipes, which is inefficient and cumbersome, especially for pipes already laid in the ground.

Innovation Solution

A device with a drum-shaped housing and interchangeable attachments allows for both the insertion and final positioning of pipe linings using a single device, featuring a retractor, attachment elements, and compressed air connections to facilitate the process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple devices are used to insert and position pipe linings, then the insertion and positioning functions can be performed, but the equipment complexity and operational efficiency deteriorate

Engineering Contradiction:
Improvefunctional capabilityVSAvoidnumber of devices
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the insertion device and positioning device into a single integrated device. The housing contains both the winding device for inserting the pipe lining and the calibration hose for positioning it. This merging eliminates the need for multiple separate devices while maintaining both insertion and positioning capabilities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single device performs multiple functions: it can insert the pipe lining into the pipe using the winding device, and subsequently position the inserted pipe lining using the calibration hose. The device is designed to handle both operations that previously required separate equipment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple devices are used for insertion and positioning, then the required functions are achieved, but the ease of operation deteriorates

Engineering Contradiction:
Improvefunctional capabilityVSAvoidoperational convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

By merging the insertion and positioning functions into one device with a unified housing and control system, the operator deals with a single piece of equipment rather than coordinating multiple devices. This simplifies the operational workflow and improves ease of use.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If separate devices are used for insertion and positioning, then the functions are performed, but the productivity deteriorates

Engineering Contradiction:
Improvefunctional capabilityVSAvoidoperational efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The integrated device allows continuous operation where the pipe lining can be inserted and then immediately positioned without removing or replacing equipment. The calibration hose can be fed through the housing directly after the pipe lining insertion, eliminating downtime and improving overall productivity.

Inventive Principle:
Principle #20Continuity of useful action

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 efficient insertion and precise positioning of pipe linings with reduced equipment needs, allowing for easier handling and hardening of the lining material within the pipe.

Implementation Method 1

an inverter attachment (40) is detachably fastened to at least a second housing opening (22), wherein a cover plate (45) is detachably fastened to at least the second housing opening (22)

Methodology Applied
Scientific EffectMechanical Fastener: Mechanical Fastener

Implementation Method 2

compressed air connections to facilitate the process

Methodology Applied
Scientific EffectCompressed air pressure: Pressure Increase

Data Source

PatentEP4043185B1Device for inserting and positioning a pipe liner in a pipe and method for inserting and positioning a pipe liner in a pipe
Publication Date: 2024.10.09 BODUS GMBH
  • EP4043185B1 patent drawingFigure 1a~1b
  • EP4043185B1 patent drawingFigure 1c
  • EP4043185B1 patent drawingFigure 2a~2b

AI summary

The invention relates to a device (10) for inserting a pipe lining (80) into a pipe (100) and for the final positioning of the pipe lining (80) inserted into a pipe (100). According to the invention, the device comprises a housing (20), in particular a drum-shaped housing, wherein a winding device (25) is formed in the housing (20) and an attachment element (35), in particular an attachment ring, is formed at a first housing opening (21), wherein a cover plate (45) or an inverter attachment (40) is optionally attached to at least a second housing opening (22), wherein in a first state for inserting the pipe lining (80) the inverter attachment (40) and in a second state for the final positioning of the pipe lining (80) the cover plate (45) is attached to the second housing opening (22).