Flexible Perforated Disc Water Outlet Device

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Solution Overview

Problem

Existing water outlet devices are complex and difficult to use, as they require mechanical structures to switch between weak, broad water jets for irrigation and strong, narrow jets for cleaning, lacking a simple and user-friendly solution for adjustable output.

Innovation Solution

A water outlet device featuring a flexible perforated disc that deforms between concave and convex shapes, allowing for adjustable water jet patterns by moving casings along an axis, with an adjusting nut for precise control and stoppers for protection, enabling easy switching between focused and diverging jets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a complex mechanical structure is used to switch between weak/broad and strong/narrow water jets, then the device can achieve adjustable water jet patterns, but the device complexity increases and ease of operation decreases

Engineering Contradiction:
Improveadjustable water jet patternsVSAvoidmechanical structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent employs a flexible perforated disc as the core component to achieve water jet pattern adjustment. The disc can be deformed between a convex shape (for strong, narrow jets) and a concave shape (for weak, broad jets) through simple radial movement. This flexible membrane approach replaces complex mechanical switching mechanisms, reducing device complexity while maintaining adaptability between different water jet patterns.

Inventive Principle:
Principle #30Flexible shells and thin films

2Adaptability or versatility

If a complex mechanical structure is used to switch between weak/broad and strong/narrow water jets, then the device can achieve adjustable water jet patterns, but the ease of operation decreases

Engineering Contradiction:
Improveadjustable water jet patternsVSAvoiduser-friendliness
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The flexible perforated disc enables simple operation through radial movement only. The user can switch between water jet patterns by moving the disc radially, which is much easier than operating complex mechanical structures. This approach significantly improves ease of operation while maintaining full adaptability between different spray patterns.

Inventive Principle:
Principle #30Flexible shells and thin films

3Device complexity

If the perforated disc is made flexible and deformable, then the device complexity is reduced, but the manufacturing precision and control over disc shape may worsen

Engineering Contradiction:
Improvestructural simplicityVSAvoiddisc shape control
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The flexible perforated disc is designed with specific radial and circumferential stiffness characteristics that allow it to maintain well-defined convex and concave shapes under operational conditions. The disc material and structural design ensure that despite its flexibility, it achieves sufficient shape control for reliable water jet pattern generation, balancing manufacturing precision with structural simplicity.

Inventive Principle:
Principle #30Flexible shells and thin films

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 device provides a user-friendly, low-complexity solution for adjusting between strong, focused jets for cleaning and weak, broad jets for irrigation, ensuring efficient and uniform water distribution with adjustable nozzles and a closing device for pressure management.

Implementation Method 1

The perforated disc is made of a flexible sheet, and the perforated disc is adjustable between a concave shape and a convex shape

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3277432B1Water outlet device
Publication Date: 2019.09.04 HUSQVARNA AB
  • EP3277432B1 patent drawingFigure 1
  • EP3277432B1 patent drawingFigure 2
  • EP3277432B1 patent drawingFigure 3~4

AI summary

The present invention relates to a water outlet device (10), in particular for connecting to a flexible tube. The water outlet device (10) comprises a first casing (12), a second casing (14) and a perforated disc (16). The first casing (12) and the second casing (14) are moveable to each other along an axis (28). The perforated disc (16) is arranged or arrangeable at a front side of the first casing (12). The border of the perforated disc (16) is attached or attachable at a front edge of the first casing (12). The centre of the perforated disc (16) is attached or attachable at a front portion of the second casing (14). The perforated disc (16) is made of a flexible sheet. The perforated disc (16) is adjustable between a concave shape and a convex shape, when the first casing (12) and the second casing (14) are moved to each other along the axis (28).