Foam Generating Device for High-Pressure Water Gun

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Solution Overview

Problem

Existing foam generating devices for high-pressure water guns lack an integrated system to adjust the type of jet and rotate the orientation of the fan-like jet, requiring separate manual adjustments for different spray patterns.

Innovation Solution

A foam generating device with a conduit system incorporating a Venturi tube for mixing cleansing liquid with high-pressure water, featuring a movable sleeve for adjusting the jet type from fan-like to solid stream and rotating the jet orientation through a retention and positioning system with elastic and stop elements, allowing for four reference positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate manual adjustment systems are used for different spray patterns, then device functionality is sufficient, but device complexity and number of components increase

Engineering Contradiction:
Improvespray pattern adjustment capabilityVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the adjustment system for spray pattern and the rotation system for jet orientation into a single integrated movable sleeve mechanism. By rotating this sleeve, the user can simultaneously control both the spray pattern (fan-like jet or solid stream) and the jet orientation (four reference positions), thereby reducing the number of separate components and simplifying the overall device structure while maintaining full functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The movable sleeve is designed as a universal control element that performs multiple functions: it adjusts the spray pattern type (fan-like or solid stream) and simultaneously controls the rotation/orientation of the jet (selecting among four reference positions). This multi-functional design eliminates the need for separate adjustment mechanisms, directly addressing the contradiction between versatility and complexity

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

2Adaptability or versatility

If an integrated adjustment and rotation system is added, then adaptability improves, but device complexity increases

Engineering Contradiction:
Improvejet type and orientation controlVSAvoidsystem integration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the adjustment system for spray pattern and the rotation system for jet orientation into a single integrated movable sleeve mechanism. By rotating this sleeve, the user can simultaneously control both the spray pattern (fan-like jet or solid stream) and the jet orientation (four reference positions), thereby reducing the number of separate components and simplifying the overall device structure while maintaining full functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system employs a dynamic movable sleeve that can be rotated to different positions to achieve different functions. The sleeve's rotation enables dynamic switching between spray patterns and jet orientations, allowing the device to adapt to different operational requirements through a single dynamic component rather than multiple static mechanisms

Inventive Principle:
Principle #15Dynamics

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

Enables simple, cost-effective adjustment of jet type and orientation, providing a compact and efficient foam generation system with reduced complexity and component count, while maintaining watertightness and easy assembly.

Implementation Method 1

Downstream of the mixing chamber 7, the conduit 2 has a Venturi tube 12, which creates a vacuum by means of the Venturi effect so as to aspirate liquid from the container 13 into the mixing chamber 7

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Data Source

PatentUS10562049B2Foam generating device for a high-pressure water gun
Publication Date: 2020.02.18 MTM HYDRO
  • US10562049B2 patent drawing
  • US10562049B2 patent drawing
  • US10562049B2 patent drawing

AI summary

A foam generating device for a high-pressure water gun has a supporting body (14) defining part of a conduit (2), which extends along an axis (3) and has a mixing chamber (7) communicating with a lower inlet, and subject, in use, to a vacuum to aspirate a liquid from said lower inlet; the device has a first sleeve (17) which is fitted around one end of the supporting body (14), is axially fixed, is rotatable and is provided with an end portion carrying a nozzle (40); such a nozzle (40) defines the outlet (5) of the conduit and is adjustable so as to vary the outgoing flow type between a fan-like jet and a solid stream jet; the device has, in addition, a second sleeve (44) which is coupled to the first sleeve (17) in a fixed axial position and in a rotatable manner and is provided with cams (49) to adjust the nozzle (40) in response to a rotation of the second sleeve (44) with respect to the first sleeve (41).