Suction Pool Cleaner Baffle Layout Against Drive Shaft Entanglement

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Solution Overview

Problem

Existing suction pool cleaners face issues with debris, such as leaves and strips, entangling the drive shaft, which slows down the rotating speed of the driving member and affects cleaning efficiency.

Innovation Solution

The suction pool cleaner incorporates a first and second baffle plate design that prevents debris from entangling the drive shaft by directing water flow away from the shaft and maintaining a narrow gap between the baffle plates and the main body, ensuring continuous and stable operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the drive shaft rotates to drive the impeller, then the suction force is generated to clean the pool, but debris may entangle the drive shaft which slows down the rotating speed and affects cleaning efficiency

Engineering Contradiction:
Improvecleaning efficiencyVSAvoiddrive shaft operation stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

A baffle plate is introduced as an intermediary component between the drive shaft and the debris flow. The baffle plate redirects the water flow and debris away from the drive shaft, preventing entanglement while maintaining the suction function. This mediator structure solves the contradiction by protecting the drive shaft without compromising the cleaning efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The housing is divided into separate functional zones using the baffle plate. One zone handles the suction and debris flow, while another zone protects the drive shaft mechanism. This segmentation allows the drive shaft to operate independently without direct exposure to debris, maintaining both reliability and productivity.

Inventive Principle:
Principle #1Segmentation

2Speed

If the drive shaft rotates at high speed to maintain suction efficiency, then cleaning performance improves, but debris entanglement increases which slows down the rotating speed

Engineering Contradiction:
Improvedrive shaft rotating speedVSAvoiddebris entanglement
Core Design Contradiction:
SpeedVSObject-affected harmful factors

Solution Approach 1:

The baffle plate serves as a protective intermediary that shields the drive shaft from debris while allowing it to maintain high rotating speed. By redirecting the flow path, the baffle plate prevents harmful factors (debris) from contacting the rotating component, thus maintaining speed and performance.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If the housing structure is simplified, then manufacturing cost decreases, but debris may more easily reach and entangle the drive shaft

Engineering Contradiction:
Improvehousing structure simplicityVSAvoiddebris entanglement risk
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The housing is segmented with a baffle plate that creates a physical barrier without requiring complex structural changes. This simple segmentation effectively prevents debris from reaching the drive shaft while maintaining ease of manufacture through the use of a single additional component.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The baffle plate is a simple intermediary structure that can be easily manufactured and integrated into the housing. It provides effective protection against debris entanglement without requiring complex design, thus maintaining ease of manufacture while reducing harmful factors.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 baffle plate design effectively prevents debris from entangling the drive shaft, maintaining high suction efficiency and ensuring continuous, stable pool cleaning.

Implementation Method 1

the driving member is configured to drive the impeller through the drive shaft to rotate around an axis of the drive shaft to generate a suction force

Methodology Applied
Scientific EffectSuction force generation: Impeller

Data Source

PatentUS12571226B2Suction pool cleaner
Publication Date: 2026.03.10 NINGBO POOLSTAR POOL PRODUCTS CO LTD
  • US12571226B2 patent drawing
  • US12571226B2 patent drawing
  • US12571226B2 patent drawing

AI summary

A suction pool cleaner, including a housing, an impeller, a driving member, a first baffle plate and a second baffle plate. The housing has a water inlet and a water outlet. The impeller is located in the housing between the inlet and the outlet. The driving member includes a main body and a drive shaft arranged thereon. The impeller is sleeved on the drive shaft, and the driving member drives the impeller to rotate around the drive shaft to generate a suction force. The first baffle plate is located in the housing between the impeller and the inlet, and an axis of the drive shaft passes through the first baffle plate. One end of the second baffle plate is connected to an end of the impeller near the main body, and the other end is adjacent to the main body.