Rotor Nozzle Structure Preventing Dispersion

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Solution Overview

Problem

Conventional rotor nozzles in watering devices cause fluids to disperse due to rotor rotation, leading to inefficient fluid distribution.

Innovation Solution

A rotor nozzle structure with a longitudinal chamber and stoppers to prevent rotor rotation, featuring a spherical end connecting to the water outlet and guide members to maintain a tilt arrangement, ensuring concentrated fluid output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conical chamber with an intermediate element is used to accommodate the rotor, then the rotor can rotate to produce a swirling spray pattern, but the fluid output disperses and loses concentration

Engineering Contradiction:
Improvespray patternVSAvoidfluid concentration
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The invention extracts and removes the intermediate element (spherical element) from the conical chamber, replacing it with a stopper that prevents rotor rotation. This extraction eliminates the mechanism causing fluid dispersion while maintaining the chamber structure for fluid flow.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of allowing the rotor to rotate freely as in conventional designs, the invention inverts the approach by using a stopper to prevent rotation. This inversion transforms the rotor from a rotating component into a stationary tilt arrangement, changing the spray mechanism from rotational dispersion to concentrated directional output.

Inventive Principle:
Principle #13The other way round (Inversion)

2Shape

If the rotor is allowed to rotate in the chamber, then the fluid output disperses in a conical pattern, but the fluid concentration and directionality are reduced

Engineering Contradiction:
Improvespray shapeVSAvoidfluid concentration
Core Design Contradiction:
ShapeVSQuantity of substance

Solution Approach 1:

The invention inverts the conventional rotor operation by preventing rotation through a stopper mechanism. This transforms the spray shape from a dispersed conical pattern to a concentrated linear pattern, simultaneously improving directionality and fluid concentration.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The invention applies local quality by creating a specific tilt arrangement for the rotor using guide members and a stopper. This localized structural arrangement at the rotor outlet ensures concentrated linear fluid output while maintaining the overall chamber structure for fluid flow.

Inventive Principle:
Principle #3Local quality

3Quantity of substance

If a stopper is used to prevent rotor rotation, then fluid output concentrates in a linear pattern, but the assembly structure becomes more complex

Engineering Contradiction:
Improvefluid concentrationVSAvoidassembly structure
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The invention merges the stopper function with the chamber structure by integrating the stopper into the longitudinal chamber design. The guide members are also integrated into the rotor outlet structure, combining multiple functions (positioning, tilting, and preventing rotation) into a unified assembly that reduces overall structural complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The stopper serves multiple functions: it prevents rotor rotation, maintains the tilt arrangement, and works with guide members to position the rotor. This multi-functionality reduces the need for separate components, simplifying the overall assembly structure while achieving concentrated linear fluid output.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Quantity of substance

If a longitudinal chamber with stoppers is used instead of a conical chamber, then the rotor remains stationary for concentrated output, but the design deviates from conventional nozzle structures

Engineering Contradiction:
Improvefluid concentrationVSAvoiddesign compatibility
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The invention changes the chamber geometry parameter from conical to longitudinal, and changes the rotor state parameter from rotating to stationary. These parameter changes enable concentrated linear fluid output while the integrated stopper and guide member design ensures compatibility with existing spray gun mounting structures.

Inventive Principle:
Principle #35Parameter changes

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 prevents rotor rotation, resulting in centralized linear fluid spraying instead of conical dispersion, enhancing the concentration and directionality of fluid output.

Implementation Method 1

at least one stopper set on the inner side of the chamber near the water outlet side is correspondingly matched to multiple guide members on the end of water outlet of the rotor

Methodology Applied
Scientific EffectMechanical constraint:

Implementation Method 2

the rotor has a spherical one end connecting to the water outlet of the watering device. Therefore, the water outlet side of the rotor forms at least two annular positioning areas

Methodology Applied
Scientific EffectFluid flow through spherical geometry:

Implementation Method 3

secures the rotor in a tilt arrangement and dismisses the conventional conical chamber to be applied to existing spray nozzles... resulting in centralized linear fluid spraying instead of conical dispersion

Methodology Applied
Scientific EffectFluid concentration through geometric arrangement:

Data Source

PatentEP3862097A1Structure of rotor nozzle and watering device
Publication Date: 2021.08.11 YUAN MEI CORP
  • EP3862097A1 patent drawingFigure 1
  • EP3862097A1 patent drawingFigure 2
  • EP3862097A1 patent drawingFigure 3

AI summary

A structure of rotor nozzle is equipped with a spray unit (100) of a watering device, the spray unit (100) is composed of a mounting member (11) and a housing (15) for defining a chamber (17), a rotor (20) deployed inside the chamber (17); wherein, at least one stopper (18) set on the inner side of the chamber (17) near the water outlet side (102) is correspondingly matched to multiple guide members (28) on one end of the water outlet (22) of the rotor (20), and it can be employable to the handy watering device.