Pool Cleaner Filter Assembly With Bypass Flow for Wall Climbing
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Solution Overview
Problem
Existing underwater cleaning devices face issues with debris accumulation in filtering layers, leading to blocked filtering holes and insufficient water flow, which affects the thrust generated by the pump suction assembly, impairing the device's wall and slope climbing performance and user experience.
Innovation Solution
A cleaning device with a filtering assembly that includes a cover part pivotally connected to a filtering box, allowing it to switch between states to either cover or expose a flow guiding opening, ensuring adequate water flow to the pump, even when the filtering layer is clogged, by utilizing gravity and buoyancy forces to adjust the cover's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filtering layer is used to filter debris in water, then the filtering effect is improved, but the filtering holes become blocked when there is a large amount of debris, resulting in insufficient water flow to the pump
Solution Approach 1:
The patent divides the water flow path into two separate channels: one through the filtering layer and another through the flow guiding opening. This segmentation allows water to flow through multiple paths simultaneously, ensuring that if the filtering layer becomes blocked, water can still reach the pump through the flow guiding opening, thus maintaining sufficient water flow while preserving the filtering function.
Solution Approach 2:
The flow guiding opening acts as an intermediary alternative path. When the filtering layer is blocked by debris accumulation, the flow guiding opening mediates the water flow by providing a direct passage from the first cavity to the pump suction assembly, bypassing the blocked filtering layer and ensuring continuous water supply to the pump.
2Stability of the object's composition
If the cover part covers the flow guiding opening, then the filtering structure is maintained, but water flow to the pump is restricted when the filtering layer is blocked
Solution Approach 1:
The cover part is designed to be movable rather than fixed, allowing it to dynamically adjust its position. It can pivot between covering the flow guiding opening to maintain the filtering structure and opening it to allow water flow through the flow guiding opening. This dynamic capability enables the system to adapt to different operating conditions, ensuring both structural integrity and sufficient water flow to the pump.
Solution Approach 2:
The patent changes the state parameter of the cover part between covered and opened positions. When the filtering layer is blocked, the cover part opens to change the flow path parameter, allowing water to flow through the flow guiding opening. This parameter change enables the system to transition from a restricted flow state to an open flow state, maintaining pump performance.
3Adaptability or versatility
If the pump suction assembly generates thrust for wall climbing, then the cleaning device can climb walls and slopes, but the thrust becomes insufficient when water flow is blocked
Solution Approach 1:
The patent segments the water flow paths into multiple channels, including the flow guiding opening that directly connects the first cavity to the pump suction assembly. This segmentation ensures that even when the filtering layer is blocked, water can still flow to the pump through the flow guiding opening, maintaining sufficient thrust generation for wall and slope climbing operations.
Solution Approach 2:
The flow guiding opening serves as an intermediary water flow path that mediates between the first cavity and the pump suction assembly. When the filtering layer is blocked, this intermediary path provides a direct water flow route, ensuring that the pump receives sufficient water to generate the necessary thrust for climbing operations, thus maintaining system reliability.
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 solution enhances the device's ability to climb walls and slopes stably by maintaining sufficient water flow to the pump, improving operational performance and user experience.
Implementation Method 1
utilizing gravity and buoyancy forces to adjust the cover's position
Implementation Method 2
utilizing gravity and buoyancy forces to adjust the cover's position
Data Source
AI summary
The present disclosure provides a pool cleaning robot. The pool cleaning robot includes a body; a filtering box detachably mounted on the body; and an in-position detection mechanism for the filtering box, where the in-position detection mechanism for the filtering box is configured to detect whether the filtering box is mounted in position on the body. The in-position detection mechanism for the filtering box includes a sensing assembly, and the sensing assembly includes a sensing part and a sensing mating part. The sensing part and the sensing mating part are both disposed at a position other than the filtering box, and the filtering box moves, so that the sensing part mates with the sensing mating part to detect whether the filtering box is mounted in position on the body.