Sewage Discharge Device With Self-Priming Pump And Cleaning Coupling
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Solution Overview
Problem
Traditional sewage discharge systems for mobile vehicles require manual disconnection and cleaning of drain pipes, exposing users to sewage and posing health risks.
Innovation Solution
A sewage discharge device with a self-priming drain pump and cleaning coupling integrated into a main box body, allowing for automated discharge and cleaning of sewage without manual contact, featuring a drain control valve, motor, impeller, and anti-jamming mechanisms for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual disconnection and cleaning of drain pipes is used, then the device complexity is reduced, but user safety and convenience deteriorate due to direct contact with sewage
Solution Approach 1:
The system performs self-cleaning through automated pump operation. The pump automatically discharges sewage and cleaning water through the drain nozzle, eliminating the need for manual cleaning operations while maintaining system functionality
Solution Approach 2:
The drain nozzle serves as an intermediary component that separates the user from direct contact with sewage. All sewage discharge and pipe cleaning operations occur through this nozzle, which can be detached and disposed of after use, protecting the user from harmful exposure
2Extent of automation
If automated pump system is integrated, then ease of operation is improved, but device complexity increases due to additional components
Solution Approach 1:
The pump, control valve, and cleaning mechanisms are merged into a single integrated main box body. This consolidation reduces the number of separate components and simplifies the overall system structure while maintaining automated functionality
Solution Approach 2:
The pump system performs multiple functions: it discharges sewage, cleans the drain pipe, and can be controlled through multiple interfaces (master switch on box body, control switch on grip). This multi-functionality justifies the automation complexity by eliminating the need for separate manual cleaning systems
3Weight of moving object
If pump and control valve are integrated into main box body, then portability is improved, but device complexity increases
Solution Approach 1:
The drain control valve and self-priming drain pump are nested within the main box body structure. This hierarchical arrangement consolidates multiple functional components into a compact unit, improving portability while organizing complexity in a manageable structure
Solution Approach 2:
The device is segmented into detachable components (drain nozzle, cleaning coupling, drain pipe) that can be separated from the main box body. This segmentation allows the heavy pump and valve to remain integrated in the main body for portability, while detachable parts can be easily removed and replaced without moving the entire system
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 convenient and safe sewage discharge without manual cleaning of drain pipes, reducing user exposure to sewage and improving portability of the device.
Implementation Method 1
A rotating shaft of the motor drives the impeller to rotate
Implementation Method 2
A one-way valve is provided inside the cleaning coupling. The one-way valve is provided between the cleaning water inlet and the cleaning coupling
Data Source
AI summary
A sewage discharge device detachably and hermetically connected to a sewage tank includes a drain pipe and a main box body. A drain control valve and a self-priming drain pump are provided inside the main box body. One end of the drain control valve is detachably and hermetically connected to the drain pipe. The other end of the drain control valve is detachably and hermetically connected to the self-priming drain pump. The self-priming drain pump is provided with a drain nozzle and a cleaning coupling. The drain nozzle is detachably and hermetically connected to a sewage pipe. The drain nozzle and the cleaning coupling protrude outside the main box body. The sewage discharge device of the present invention prevents users from contacting fecal matter and wastewater. Manual cleaning of the drain pipe is also eliminated, which is convenient to use.