Wastewater Pump Coupling Self-Alignment Mechanism
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Solution Overview
Problem
Existing wastewater lifting systems face difficulties in easily connecting and disconnecting the pump unit to the outlet line within the container, particularly for maintenance purposes, due to the need for precise alignment and complex assembly processes.
Innovation Solution
A wastewater lifting system with a releasable coupling mechanism that allows the pump unit to be inserted through an opening in the container wall, featuring a first and second coupling part that automatically align and connect in the insertion direction, facilitated by elastic deformability and guide structures, enabling easy connection and disconnection without requiring intricate alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pump unit is connected inside the container to the outlet line, then the connection is secure and sealed, but the connection and disconnection process becomes complex and difficult for maintenance
Solution Approach 1:
The coupling is divided into two separate parts: a first coupling part attached to the outlet connection and a second coupling part attached to the outlet line. This segmentation allows the pump unit to be easily disconnected by separating the coupling parts, while maintaining a secure sealed connection when assembled together.
Solution Approach 2:
The first coupling part is designed to be insertable into the second coupling part along the insertion direction. This nested configuration allows one coupling component to be housed within the other, creating a compact and secure connection that can be easily assembled and disassembled.
2Manufacturing precision
If the coupling requires exact alignment for connection, then the connection is precise and sealed, but the alignment process becomes time-consuming and complex
Solution Approach 1:
The second coupling part is designed with mobility along the insertion direction, allowing it to dynamically adjust its position to automatically align with the first coupling part during the connection process. This dynamic adjustment eliminates the need for precise manual alignment while maintaining connection precision.
Solution Approach 2:
The coupling mechanism is designed to self-align through the movable second coupling part that automatically positions itself relative to the first coupling part during insertion. This self-aligning feature eliminates the need for external alignment tools or complex positioning procedures.
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
Simplifies the connection and disconnection process of the pump unit to the outlet line, allowing for effortless maintenance and installation, while ensuring a secure and sealed fluid passage, reducing assembly complexity and improving operational efficiency.
Implementation Method 1
The outlet line is designed to be elastically deformable at least in sections
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
The invention relates to a wastewater lifting station with a container (2) and at least one pump unit (6) arranged therein, wherein the pump unit (6) has an outlet nozzle (13) which is connected to an outlet line (8), wherein the pump unit (6) is removable from the container through an opening in a wall of the container and the outlet nozzle (13) is connected to the outlet line (8) via a coupling (14, 16) which can be released in the insertion direction (X) of the pump unit (6).