Spray Device Converging Assembly Uniform Distribution

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Solution Overview

Problem

Conventional spray devices for agricultural and garden applications face inefficiencies in mixing and spraying liquids, leading to uneven distribution and potential contamination or evaporation of solutions due to air exposure.

Innovation Solution

A spray device with a converging assembly, suction pipe, and air channels that mix liquids and air within the device, creating a negative pressure to suck the solution into a second liquid channel for even spraying, while maintaining air pressure balance and reducing contamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional spray devices mix and spray liquids directly, then spraying function is achieved, but uneven distribution and contamination occur

Engineering Contradiction:

Improvespray distribution uniformityVSAvoidsolution contamination

Core Design Contradiction:

Manufacturing precisionVSReliability

Solution Approach 1:

The device divides the liquid flow into separate channels: a first liquid channel for clean liquid and a second liquid channel for solution. This segmentation prevents mixing contamination while enabling controlled convergence for uniform spray distribution.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Air acts as an intermediary medium in the air channel, creating negative pressure that draws solution through the suction pipe without direct contact between air and solution until the convergence point, preventing contamination while enabling controlled mixing for uniform spray.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If air is allowed to contact solution for mixing, then spray mixing is achieved, but evaporation and contamination increase

Engineering Contradiction:

Improvemixing efficiencyVSAvoidsolution evaporation

Core Design Contradiction:

ProductivityVSLoss of substance

Solution Approach 1:

Air flows through the first liquid channel before reaching the convergence point, preparing the flow path and creating negative pressure in advance. This preliminary action enables controlled solution uptake without premature evaporation or contamination.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The device uses pneumatic principles where air flow creates negative pressure in the suction pipe, automatically drawing solution into the second liquid channel. This hydraulic-pneumatic coupling achieves efficient mixing while controlling air-solution contact to minimize evaporation.

Inventive Principle:

Principle #29Pneumatics and hydraulics

3Device complexity

If simple mixing structure is used, then device complexity is reduced, but mixing and spraying efficiency decrease

Engineering Contradiction:

Improvechannel structure complexityVSAvoidmixing and spraying efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The device merges multiple functions into a single converging assembly structure: liquid guidance, air flow, solution suction, and mixing all occur in one integrated component. This merging achieves efficient multi-functionality without proportionally increasing overall device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The converging assembly serves multiple purposes simultaneously: it guides liquid flow, creates negative pressure for solution suction, enables air-solution mixing, and provides spray distribution. This multi-functionality maximizes productivity within a compact structure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 ensures efficient mixing and spraying of liquids, reducing contamination and evaporation, and maintaining solution integrity within the container.

Implementation Method 1

When a liquid flows from the first liquid channel to the second liquid channel, the solution is sucked to the second liquid channel through the suction pipe

Methodology Applied

Scientific EffectNegative pressure suction: Suction

Implementation Method 2

air in the first liquid channel is discharged via the first air channel

Methodology Applied

Scientific EffectAir discharge:

Implementation Method 3

the solution and the liquid are mixed at the inlet of the second liquid channel and then are sprayed from the second liquid channel

Methodology Applied

Scientific EffectLiquid mixing:

Data Source

PatentUS11618044B2Spray device and spray system

Publication Date: 2023.04.04 LV QIJUN

AI summary

A spray device includes a converging assembly, a container and a suction pipe. The converging assembly includes a first liquid channel, a second liquid channel, a first air channel and a second air channel. The first liquid channel and the first air channel communicate with an inlet of the second liquid channel. The second air channel communicates with the container. An end of the suction pipe communicates with the inlet of the second liquid channel, and another end is submerged in a solution in the container. When a liquid flows from the first liquid channel to the second liquid channel, air in the first liquid channel is discharged via the first air channel, the solution is sucked to the second liquid channel through the suction pipe, the solution and the liquid are mixed at the inlet of the second liquid channel, and then are sprayed from the second liquid channel.