Sewer Branch Pipe Lining Device with Rotatable Deflection
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Solution Overview
Problem
Existing lining devices are unsuitable for renovating inaccessible or poorly accessible sewer branch pipes branching off from a main sewer, as they require complex apparatus and significant effort, making them costly and difficult to implement, especially when the main sewer is not walkable.
Innovation Solution
A lining device with a cylindrical holding chamber, frustoconical reduction pieces, and a deflection piece with a blow-out connection, allowing for easy adaptation and positioning at the sewer branch pipe junction, enabling efficient introduction of a lining tube without the need for complex robots or extensive equipment, with features like a low center of gravity and stabilizing elements to prevent tilting or twisting during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a special sewer robot with a complicated structure is used to transport and position the lining tube, then the lining tube can be introduced into the sewer branch pipe, but the effort and costs associated with the complicated apparatus and positioning flange increase significantly
Solution Approach 1:
The device is divided into separable components: a holding chamber for the lining tube, a deflection piece with blow-out connection, and a positioning mechanism. This segmentation allows the lining tube to be introduced without requiring a complex integrated robot system, reducing overall device complexity while maintaining functionality.
Solution Approach 2:
The lining tube is pre-positioned in the holding chamber with the blow-out connection oriented in the correct direction before being pushed into the sewer branch pipe. This preliminary positioning eliminates the need for complex real-time positioning mechanisms during the lining process, reducing device complexity and effort.
2Manufacturing precision
If the blow-out connection piece is fixed in a specific position, then the lining tube can be accurately positioned at the junction point, but the device cannot be adapted to different sewer branch pipe configurations
Solution Approach 1:
The deflection piece is designed to be rotatable relative to the holding chamber, allowing the blow-out connection to be dynamically repositioned to different orientations. This enables adaptation to various sewer branch pipe configurations while maintaining accurate positioning at the junction point through controlled rotation to the appropriate angle.
Solution Approach 2:
The holding chamber is designed with a universal interface that can accommodate different lining tube sizes and configurations. The rotatable deflection piece with blow-out connection provides multi-functional adaptability, allowing the same device to serve multiple sewer branch pipe orientations and sizes, enhancing both versatility and positioning precision.
3Stability of the object's composition
If the lining device is designed with stabilizing elements and low center of gravity, then tilting or twisting during insertion is prevented, but the device structure becomes more complex
Solution Approach 1:
The holding chamber is designed with a low center of gravity, positioning the majority of the mass at the base of the device. This gravitational counterbalance naturally prevents tilting or twisting during insertion by creating a stable equilibrium position, eliminating the need for additional active stabilization mechanisms and reducing overall device complexity.
Solution Approach 2:
The device employs asymmetric design elements, including the positioned bearing lines and the low center of gravity configuration, which create inherent directional stability. This asymmetric mass distribution and geometric configuration prevent unwanted rotation or tilting during operation, providing stability through the design itself rather than through complex additional stabilization components.
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
The device allows for easy and efficient renovation of sewer branch pipes with reduced effort and cost, as it can be pre-equipped outside the sewer system and moved into position without complex apparatus, ensuring accurate positioning and preventing damage during insertion, thereby simplifying the renovation process.
Implementation Method 1
a pressure application means for applying a blow-out pressure to the unit configured in a pressure-tight manner and formed by the holding chamber, the at least first reduction piece and the deflection piece, in order to blow a lining tube, present in the holding chamber and fastened to the blow-out connection piece, out of the blow-out connection piece
Data Source
AI summary
The lining device is intended to line a sewer branch pipe with a lining tube. It includes a holding chamber for the lining tube, the holding chamber having a straight holding-chamber bearing line. Furthermore, it has a reduction piece which is attached to an end side of the holding chamber and has a straight reduction-piece bearing line, which is aligned with the holding-chamber bearing line. Moreover, it has a deflection piece which is provided with a blow-out connection piece for fastening one end of the lining tube to, wherein a position of the blow-out connection piece is settable and adaptable to the position of a junction of the sewer branch pipe leading into the main sewer. Furthermore, it has pressure application device in order to blow out a lining tube, present in the holding chamber and fastened to the blow-out connection piece.