Electric Spreader Sprayer with Foldable Arms and Hinged Hopper

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Solution Overview

Problem

Conventional spreader sprayers are noisy, have high maintenance costs, are not compatible with intelligent devices, and are unsuitable for complex terrain due to fixed structures and limited adjustability, making them inefficient for urban lawns and stadiums.

Innovation Solution

A spreader sprayer with an electric actuator-driven walking, spreading, and spraying system, featuring a foldable vehicle-mounted spraying assembly, a compact design, and a controller assembly for intelligent operation, along with a hinged hopper for easy maintenance, allowing for adjustable spreading density and terrain adaptability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If gasoline engines or diesel engines are used to power spreader sprayers, then sufficient power is provided, but noise increases and maintenance costs rise

Engineering Contradiction:
ImprovepowerVSAvoidnoise and maintenance costs
Core Design Contradiction:
PowerVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the traditional mechanical engine system (gasoline or diesel) with an electric motor system. The electric motor is driven by a power battery, eliminating the need for combustion engines. This substitution resolves the contradiction by providing sufficient mechanical power through electrical means while eliminating noise and reducing maintenance requirements associated with internal combustion engines.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Area of stationary object

If fixed spraying rods with large size are used, then spraying coverage is achieved, but the device becomes complex and unsuitable for complex terrain

Engineering Contradiction:
Improvespraying coverageVSAvoidstructure complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent transforms the fixed, rigid spraying rod structure into a flexible, extendable arm system with multiple joints. The spraying assembly can be extended or retracted, and the arms can be positioned at different angles to adapt to various terrain conditions. This dynamic structure maintains spraying coverage while significantly reducing complexity and improving adaptability to complex environments such as urban lawns and stadiums.

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If the hopper is a fixed structure, then structural stability is maintained, but operating space is reduced and repair costs increase

Engineering Contradiction:
Improvestructural stabilityVSAvoidmaintenance accessibility
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The patent divides the hopper into separable components that can be detached from the main device. The hopper is designed as a modular unit that can be easily removed, inspected, and repaired independently. This segmentation maintains structural stability during operation while dramatically improving accessibility for maintenance and repair activities, reducing both operating space constraints and repair costs.

Inventive Principle:
Principle #1Segmentation

4Device complexity

If the spreading device cannot flexibly adjust spreading density and range, then structural simplicity is maintained, but adaptability to complex terrain is reduced

Engineering Contradiction:
Improvestructure simplicityVSAvoidterrain adaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent incorporates adjustable parameters into the spreading device, including variable spreading width control and adjustable spreading density mechanisms. These parameters can be modified based on terrain requirements without fundamentally changing the overall structure. The device maintains relative simplicity while gaining the ability to adapt to different terrain conditions through parameter adjustments rather than complex structural changes.

Inventive Principle:
Principle #35Parameter changes

5Speed

If universal wheels are used for the front wheels, then mobility is achieved, but yaw occurs when synchronous control is not strict or road surface is uneven

Engineering Contradiction:
ImprovemobilityVSAvoiddirectional control stability
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The patent implements a feedback control system for the wheel suspension and steering mechanism. Sensors detect wheel position, orientation, and road surface conditions, and this information is fed back to the control system. The system automatically adjusts wheel alignment and motor torque to maintain synchronous operation and prevent yaw, even on uneven surfaces. This feedback mechanism preserves mobility while significantly improving directional control stability and reliability.

Inventive Principle:
Principle #23Feedback

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 provides a quieter, more cost-effective, and adaptable spreader sprayer that is compatible with intelligent devices, offering improved flexibility and maintenance convenience, suitable for complex terrain environments.

Implementation Method 1

a power battery is arranged on the frame, and the power battery is configured to provide electrical energy to the walking driving part, the spreading driving part and the spraying driving part

Methodology Applied
Scientific EffectBattery (electricity): Battery (electricity)

Implementation Method 2

The water divider valve assembly includes a three-way valve and an electromagnetic water divider valve

Methodology Applied
Scientific EffectElectromagnetic valve: Electromagnet

Data Source

PatentUS20250099992A1Spreader sprayer
Publication Date: 2025.03.27 GLOBE (JIANGSU) CO LTD
  • US20250099992A1 patent drawing
  • US20250099992A1 patent drawing
  • US20250099992A1 patent drawing

AI summary

A spreader sprayer includes a frame, a walking device, a spreading device, a spraying device and a controller assembly. The walking device includes a walking driving part. The spreading device includes a spreading driving part. The spraying device includes a spraying driving part. The controller assembly is electrically connected with the walking driving part, the spreading driving part and the spraying driving part respectively. The disclosure uses a power battery as a power source of a whole vehicle. The controller assembly can respond to user's operation to control a movement of the walking device, the spreading device and the spraying device.