Pipe Connection Renewal Kit With Push Rod Sealing Plate Fixation
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Solution Overview
Problem
Existing pipeline renovation kits are cumbersome to handle, particularly for infrequent users, as they require careful manipulation of external components to secure the sealing plate inside the pipeline, which can be irregularly shaped, necessitating precise alignment and tension application.
Innovation Solution
The kit employs a push rod to securely hold the sealing plate inside the pipeline, allowing for easy insertion and provisional fixation, eliminating the need for external components during initial assembly, and features a detachable tension element with hook and eyelet sections for simplified force application, enabling quick and tool-free connection and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external components (support yoke, tension rod) are used to hold the sealing plate, then the sealing plate can be securely fixed against the pipeline wall, but the handling complexity increases significantly for infrequent users
Solution Approach 1:
The invention extracts the external support components (support yoke, tension rod) from the kit and replaces them with a self-contained pressure rod integrated into the sealing plate assembly. This eliminates the need for separate external fixation components, thereby maintaining reliable sealing plate fixation while significantly simplifying handling for infrequent users.
Solution Approach 2:
The pressure rod is merged with the sealing plate as an integrated assembly, where the pressure rod is received by the sealing plate in a receiving region. This combination ensures that the sealing plate and pressure rod work together as a unified system, providing reliable fixation without requiring separate external components, thus improving ease of operation while maintaining sealing reliability.
2Force
If multiple interconnected components are used for sealing plate fixation, then reliable tension application is achieved, but the device complexity and handling difficulty increase
Solution Approach 1:
The invention removes the complex interconnected system of support yoke and tension rod from the kit. Instead, it uses a single integrated pressure rod that directly applies force to the sealing plate through the receiving region, thereby achieving reliable tension application while dramatically reducing device complexity and the number of interconnected components.
Solution Approach 2:
The sealing plate assembly is designed to be self-sufficient with the integrated pressure rod, eliminating the need for separate external support structures. The pressure rod is directly received and positioned by the sealing plate's receiving region, creating a self-contained system that applies necessary tension without complex interconnections between multiple components.
3Manufacturing precision
If a precisely matched pressure rod is used for each pipeline diameter, then optimal sealing performance is achieved, but the adaptability to various pipeline diameters decreases
Solution Approach 1:
The pressure rod is designed with universal applicability to work with sealing plates for various pipeline diameters. The pressure rod can be moved relative to the sealing plate and fixed in different positions, allowing the same pressure rod design to function effectively across different pipeline sizes while maintaining optimal sealing performance through proper positioning rather than precise diameter matching.
Solution Approach 2:
The pressure rod is designed to be movable relative to the sealing plate and can be fixed at different positions along the sealing plate's receiving region. This dynamic positioning capability allows the same pressure rod to adapt to various pipeline diameters, maintaining optimal sealing performance through adjustable positioning rather than requiring precisely matched fixed-size components for each diameter.
Data Source
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AI summary
In a kit for the rehabilitation of a pipe connection, comprising a hinged, foldable sealing plate (3) that can be applied to the inside of the wall of the pipe (1), and a rehabilitation spigot (17) designed to extend from the sealing plate (3) through a connection opening (2) in the wall beyond the wall of the pipe (1) and to enable the connection of a secondary pipe, the invention proposes a pressure rod (8) that extends through the sealing plate (3) and is designed to be applied oppositely to the inside of the wall of the pipe (1) and thus transmit a pressure force pressing the sealing plate (3) against the inside of the wall of the pipe (1), wherein the pressure rod (8) can be selectively moved transversely to the surface of the sealing plate (3) or fixed relative to the sealing plate (3).