Modular Conical End Stopper for Easy Liner Plug Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing end plugs for liner systems in pipe and sewer rehabilitation are difficult and cumbersome to remove after use, even with suitable tools.
Innovation Solution
The end plug is designed with modular, interlocking profile parts that taper from the outside to the inside, featuring a cover part that can be reversibly attached via force and/or form locking, and includes a deflection roller unit for guiding cables and ropes, allowing easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional end plugs are used for liner systems, then structural stability is achieved, but removal becomes difficult and cumbersome even with suitable tools
Solution Approach 1:
The end plug is divided into multiple profile parts (100-105) that can be separated from each other. Each profile part can be independently removed, transforming a monolithic difficult-to-remove structure into modular components that are easy to detach and handle separately.
Solution Approach 2:
Different regions of the end plug have different properties: the profile parts have tapered geometries for easy detachment in specific areas, while maintaining overall structural stability through their interlocking arrangement. The localized tapering creates weak points for removal without compromising the strength needed during operation.
2Ease of operation
If modular profile parts are used, then ease of assembly and disassembly is improved, but device complexity increases
Solution Approach 1:
Multiple profile parts (100-105) are combined into a single functional end plug assembly that operates as one unit during use. The parts are designed to interlock and form a complete circular structure, merging multiple components into a unified device that provides both modularity for assembly and simplicity for operation.
Solution Approach 2:
The profile parts are designed with standardized tapered interfaces that can be universally assembled in different configurations. Each profile part serves multiple functions: structural support, interlocking with adjacent parts, and providing a controlled detachment point, reducing the need for specialized components.
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
The present invention relates to an end stopper (10) for liner systems for pipe and sewer rehabilitation with a liner which is arranged between two end stoppers (10) and can be acted upon by a pressure medium and can be applied reversibly to the circumference of the end stopper (10), characterized in that the end stopper (10) is composed, in cross section, of a plurality of profile parts (100, 101, 102, 103, 104, 105) which are of part annular and/or part tubular shape and are conical, wherein at least one profile part (100) has a configuration that tapers conically from the inside to the outside.