Handheld Pool Suction Machine With Dual-Pump Shallow-Water Operation
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Solution Overview
Problem
Conventional handheld swimming pool sewage suction machines using impeller pumps are limited in application scenarios and cannot effectively operate in shallow ends, leading to low cleaning efficiency and the existence of cleaning blind zones due to the requirement for the impeller to be immersed in water.
Innovation Solution
A handheld swimming pool sewage suction machine with a first water pump, a filtering device, a second water pump, a main channel, and a bypass channel, where the second water pump is located below the first water pump and activates when predetermined conditions are met to raise the water level, allowing the machine to operate in shallow ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an impeller pump is used as the core power source, then the machine can pump water and impurities effectively, but the machine cannot operate in shallow ends where the impeller cannot be immersed in water
Solution Approach 1:
The patent divides the water pump system into two independent pumps: a first water pump (impeller pump) for normal operation and a second water pump (submersible pump) for shallow water conditions. This segmentation allows each pump to operate in its optimal condition, resolving the contradiction between cleaning efficiency and adaptability to different water depths
Solution Approach 2:
The patent creates a multi-functional water pumping system where the first water pump handles normal deep-water operations with high efficiency, while the second water pump handles shallow-water operations. The system can universally adapt to various water depth conditions, eliminating cleaning blind zones while maintaining effective pumping capability
2Device complexity
If the impeller pump is located at a high position, then the machine structure is simplified, but the machine cannot draw water when the water level is low
Solution Approach 1:
The patent segments the pumping function into two independent systems with different structural arrangements. The first water pump maintains its high-position simplified structure for normal operations, while the second water pump is positioned lower to access shallow water, enabling the overall system to operate across a wider range of water levels without excessive structural complexity
Solution Approach 2:
The patent introduces a water level sensor as an intermediary that automatically detects water depth and controls the switching between the first and second water pumps. This intermediary component enables the system to adapt to different operating conditions without requiring complex manual intervention or structural redesign
3Adaptability or versatility
If the second water pump is activated to raise water level, then the machine can operate in shallow ends, but the device complexity increases
Solution Approach 1:
The patent segments the pumping system into two independent, modular pump units that can be independently controlled. This segmentation allows the system to activate only the necessary pump (second water pump) when shallow water conditions are detected, extending operating range while keeping the overall device complexity manageable through modular design
Solution Approach 2:
The patent implements dynamic control where the second water pump is activated only when water level sensors detect shallow conditions, and deactivated when normal water levels are restored. This dynamic operation allows the system to adapt its complexity to the operational requirements, maintaining simplicity during normal operation and adding capability only when needed
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 machine expands its operating range to include shallow ends, improving operational flexibility and cleaning efficiency by ensuring the first water pump can draw water smoothly, even in low water levels, through the intelligent activation of the second water pump.
Implementation Method 1
a first water pump, capable of directing water to flow into the main channel from a first water inlet of the main channel and to be discharged from a body outlet after the water is filtered by the filtering device
Implementation Method 2
a second water pump, capable of directing the water to flow into the main channel from a second water inlet of the bypass channel when a predetermined condition is fulfilled
Data Source
AI summary
The present disclosure relates to a handheld swimming pool sewage suction machine, including a body and a suction head, the body being therein with a first water pump, a filtering device, a second water pump, a main channel and a bypass channel, the filtering device and the first water pump being at least partially located in the main channel, and the second water pump being at least partially located in the bypass channel; wherein the first water pump enables water to flow into the main channel from a first water inlet and to be discharged from a body outlet after filtration by the filtering device; and the second water pump enables the water to flow into the main channel from a second water inlet of the bypass channel when a predetermined condition is fulfilled. The handheld swimming pool sewage suction machine can start operating under different water depth conditions.