Remote End Seal Placement Tool for Host Pipe Installation
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Solution Overview
Problem
Conventional methods for installing end seals in host pipes require manual entry into manholes, which is time-consuming and labor-intensive, and poses safety and logistical challenges.
Innovation Solution
An end seal placement tool with a pole and end seal holder that allows for the placement and ejection of end seals from outside the manhole, utilizing a launcher and adjustable length pole to facilitate installation without manual entry, along with optional accessories like cameras and sensors for verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual entry into manhole is used for end seal installation, then the end seal can be positioned in the host pipe, but the installation process becomes time-consuming and labor-intensive
Solution Approach 1:
A pole with an end seal holder is introduced as an intermediary tool to transfer the end seal from outside the manhole into the host pipe. The holder is inserted through the manhole opening, positioned within the host pipe, and then ejects the end seal to the desired location, eliminating the need for manual entry while maintaining precise placement capability
Solution Approach 2:
The manual mechanical action of entering the manhole and positioning the end seal by hand is replaced with a mechanical ejection system. The launcher mechanism uses spring or pneumatic force to automatically eject the end seal from the holder into the host pipe, reducing labor intensity and installation time
2Ease of operation
If manual entry into manhole is used for end seal installation, then the end seal can be positioned in the host pipe, but safety and logistical challenges arise
Solution Approach 1:
The pole and holder assembly serves as a mediator that allows the operator to remain outside the manhole while completing the installation task. This eliminates exposure to confined space hazards, hazardous atmospheres, and physical risks associated with manual entry, while still enabling precise end seal placement
Solution Approach 2:
The system is designed to perform the installation task autonomously once positioned. The launcher mechanism automatically ejects the end seal without requiring manual manipulation inside the manhole, making the process self-contained and eliminating the need for human entry into hazardous environments
3Productivity
If conventional manual installation method is used, then the end seal can be installed, but extensive equipment and documentation are required
Solution Approach 1:
The installation system is segmented into modular components: a pole for access, a holder for end seal storage and positioning, and a launcher for ejection. This modular design allows each component to perform its specific function efficiently without requiring complex integrated systems or extensive supporting equipment
Solution Approach 2:
The system uses a simplified physical model where the holder replicates the necessary positioning functions inside the pipe without requiring the operator to physically enter. The launcher mechanism copies the ejection action needed for manual installation but achieves it through automated mechanical means, reducing the need for complex safety equipment and documentation
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 and safe installation of end seals in host pipes from outside the manhole, reducing the need for extensive equipment and documentation, thereby saving time and resources.
Implementation Method 1
The launcher includes a spring configured to eject the end seal from the end seal holder into the host pipe
Implementation Method 2
In use, any fluid that flows between the liner and host pipe causes the hydrophilic material to swell and form a water-tight seal between the liner and host pipe
Data Source
AI summary
An end seal placement tool for placing an end seal in a host pipe within a manhole includes a pole with opposite proximal and distal ends. An end seal holder is disposed at the distal end of the pole. The end seal holder includes an end seal chamber configured to hold the end seal. The end seal holder is sized and shaped to be at least partially inserted into the host pipe. A launcher is arranged with respect to the end seal holder for ejecting the end seal from the end seal holder into the host pipe.