Swimming Pool Cleaner with Adjustable Flow for Wall Transitions
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Solution Overview
Problem
Existing pool cleaning devices face challenges in maintaining debris suction power when transitioning from horizontal to vertical surfaces due to the liquid flow flushing debris at the rear, requiring significant reduction in suction power.
Innovation Solution
A swimming pool cleaning apparatus with adjustable liquid flow orientation, allowing the flow to be directed in predefined angles relative to the guide plane, ensuring consistent debris suction by adjusting the liquid flow direction to match the surface orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the liquid outlet is fixed and directed toward the rear, then the apparatus structure is simple, but the suction power is significantly reduced when moving in reverse from horizontal to vertical surfaces
Solution Approach 1:
The liquid outlet orientation is made dynamic rather than fixed. The outlet can change its directing angle between a first angle (when the guide plane is substantially horizontal) and a second angle (when the guide plane is substantially vertical), allowing the apparatus to maintain optimal suction power during transitions between different surface orientations without requiring complex electric actuators
Solution Approach 2:
The directing angle of the liquid outlet is changed as a parameter in response to the orientation of the guide plane. By adjusting this parameter (the angle at which liquid is discharged), the apparatus adapts to different operational conditions (horizontal vs vertical movement) and maintains effective suction power throughout the cleaning cycle
2Speed
If the liquid flow is directed toward the rear during vertical surface cleaning, then the apparatus can maintain forward motion, but debris is flushed at the rear reducing cleaning effectiveness
Solution Approach 1:
The liquid outlet orientation is dynamically adjusted based on the guide plane orientation. When cleaning vertical surfaces, the outlet directs liquid at a second angle that prevents debris flushing while maintaining forward motion capability, whereas when on horizontal surfaces, it uses a first angle optimized for that condition
Solution Approach 2:
The directing angle parameter of the liquid outlet is changed according to the operational phase: a first directing angle for horizontal surface cleaning and a second directing angle for vertical surface cleaning. This parameter adjustment ensures that liquid flow supports forward motion without flushing debris during vertical cleaning operations
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
Maintains nominal suction power during transitions between horizontal and vertical surfaces, preventing debris flushing and ensuring efficient cleaning of both pool bottom and walls without the need for electric actuators.
Implementation Method 1
the reaction to the force created by the flow of liquid has a horizontal component (or longitudinal component) and a non-zero vertical component
Implementation Method 2
a filtration chamber formed within the body, a liquid inlet, a liquid outlet, and a hydraulic circuit for circulating liquid between the input and output through a filter device
Data Source
AI summary
A swimming pool cleaning apparatus may include a body, a hydraulic circuit for liquid circulation between a liquid inlet and a liquid outlet and through a filtration chamber, driving and guiding members of the body on a submerged surface, and defining a guide plane (XY), and an adjustment mechanism for the orientation of a liquid flow, disposed at the outlet of the liquid outlet. The adjustment mechanism is adapted to direct the flow of liquid that escapes from the liquid outlet in (at least) two predefined directions, one of which corresponds to a first direction inclined with respect to the guide plane and the other of which corresponds to a direction substantially perpendicular to the guide plane.