Suction Head Central Deflector Prevents Pool Vacuum Clogging

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Solution Overview

Problem

Existing swimming pool vacuum cleaners face issues with bulky debris accumulating below the suction pump propeller, leading to clogging and potential motor damage due to the reduced cross-section of the suction duct.

Innovation Solution

A suction head with a central deflector positioned between the motor and propeller, which is integral and driven by the same rotational movement, prevents bulky debris from accumulating below the propeller by directing it to the periphery of the suction duct, and can be designed as a disc, ring, or with a frustoconical shape to enhance debris discharge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of stationary object

If a bagged vacuum cleaner brush with large-capacity bag is used to collect bulky debris like leaves, then the storage volume is improved, but the reduced cross-section of the suction duct causes the suction duct to be blocked by bulky debris

Engineering Contradiction:

Improvestorage volumeVSAvoidsuction duct blockage

Core Design Contradiction:

Volume of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The suction duct is segmented into two pathways: a first suction duct for bulky debris with larger cross-section, and a second suction duct for fine debris with smaller cross-section. This segmentation allows each duct to be optimized for its specific debris type, preventing blockage while maintaining storage capacity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the suction system are given different qualities: the first suction duct has larger dimensions and is positioned to receive bulky debris, while the second suction duct has smaller dimensions for fine debris. The collection bag is also divided into separate compartments with different access points.

Inventive Principle:

Principle #3Local quality

2Reliability

If a filter vacuum cleaner brush with low free height is used, then the suction pump can operate without blockage, but it cannot suck up bulky debris like leaves due to low free height and low storage volume

Engineering Contradiction:

Improvesuction pump operationVSAvoidability to suck bulky debris

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The suction system is divided into two independent pathways that can operate simultaneously or independently. The first suction duct handles bulky debris with sufficient free height, while the second suction duct handles fine debris, allowing the system to adapt to different debris types without compromising pump reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The vacuum cleaner brush is designed to perform multiple functions: collecting both bulky debris (leaves) and fine debris (sand, dirt) through the dual suction duct system, making it universally applicable to various pool cleaning scenarios.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Device complexity

If the suction duct cross-section is reduced to fit the motor and propeller, then the device complexity is reduced, but the suction duct becomes blocked by bulky debris

Engineering Contradiction:

Improvesuction duct designVSAvoiddebris accumulation

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

Rather than designing a single complex suction duct that must accommodate all debris types, the system segments the suction function into two simpler ducts: one optimized for bulky debris and another for fine debris. This reduces the complexity of each individual duct while preventing blockage.

Inventive Principle:

Principle #1Segmentation

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 central deflector effectively prevents clogging and motor damage by ensuring bulky debris is discharged peripherally, maintaining the suction pump's operation and extending the vacuum cleaner's usability for collecting leaves and other large items.

Implementation Method 1

the rotation of the propeller producing suction along the suction duct between a suction mouth and an upper opening of said duct

Methodology Applied

Scientific EffectSuction: Suction

Implementation Method 2

the central deflector is integral with the propeller and is driven by the same rotational movement as the latter, for improved discharge of bulky debris to the periphery of the suction duct

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS11519192B2Suction head with central deflector for cleaning swimming pools

Publication Date: 2022.12.06 KOKIDO DEV

AI summary

A suction head for submersible use in the water of an artificial pool. The suction head having a body provided with a suction duct and a suction pump placed inside the suction duct. The suction pump includes an electric motor coupled to a propeller. The rotation of the propeller producing suction along the suction duct between a suction mouth and an upper opening of the duct. The suction head further includes a central deflector placed between the motor and the propeller so as to prevent bulky debris from piling up below the propeller and discharging it to the periphery of the suction duct.