Vehicle assisted working device, cleaning system, and method using the same
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Solution Overview
Problem
Current street cleaning methods using rotating brushes re-suspend dust into the air, posing health risks and being economically inefficient due to water usage and large, expensive filtration systems required for air-borne particle removal.
Innovation Solution
A vehicle-assisted cleaning device that uses a blower for underpressure and overpressure to separate extraneous materials from surfaces without water, employing an air knife for efficient removal and a cyclone for dust collection, allowing for a lightweight, multi-purpose design that reduces air emissions and maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water is used to suppress dust during brushing, then air-borne dust emissions are reduced, but vehicle fuel consumption increases and maintenance costs rise
Solution Approach 1:
The invention extracts and removes the water suppression function from the cleaning system, replacing it with a purely mechanical brushing and suction system. The brush mechanically loosens and collects dust particles directly into the suction system without requiring water, thereby eliminating the harmful effect of dust emissions without incurring the energy cost of transporting and applying water.
Solution Approach 2:
The invention replaces the hydraulic/water-based dust suppression mechanism with a mechanical system consisting of rotating brushes and suction. The mechanical action of the brushes directly engages with dust particles to lift and transport them into the suction system, substituting the need for water with pure mechanical force.
2Object-affected harmful factors
If water is used for surface cleaning, then dust is effectively suppressed, but the weight of water increases fuel consumption and reduces debris collection capacity
Solution Approach 1:
The invention extracts the water element from the cleaning process entirely, allowing the vessel capacity to be dedicated solely to debris collection. Without water occupying space and weight in the system, the entire vessel capacity is available for collecting dry debris, maximizing the quantity of substance that can be collected before requiring emptying.
3Object-affected harmful factors
If a large bag-house filtration system is used to remove air-borne particles, then dust emissions are reduced, but the system becomes large, heavy, and expensive
Solution Approach 1:
The invention extracts and eliminates the need for large-scale air-borne particle filtration systems by preventing dust from becoming air-borne in the first place. The mechanical brush and suction system captures dust at the source before it can be suspended in air, thereby removing the harmful effect without requiring complex and expensive filtration infrastructure.
Solution Approach 2:
The invention introduces the suction system as an intermediary between the brush and the environment. Instead of allowing dust to go directly from the surface to the air, the suction system acts as a mediator that captures dust particles immediately after they are loosened by the brush, preventing their release into the atmosphere without needing large filtration systems.
4Ease of operation
If a vehicle-integrated cleaning system is designed, then cleaning function is provided, but the device becomes expensive and purpose-oriented with tight integration requirements
Solution Approach 1:
The invention segments the cleaning system into a separate, modular unit that can be independently attached to or removed from the vehicle. The cleaning device is designed as a self-contained module with its own brush, suction system, and debris collection vessel, allowing it to be easily mounted and dismounted without permanent integration, thereby maintaining vehicle versatility while providing effective cleaning 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 effectively reduces air-borne dust emissions, conserves water, and decreases fuel consumption while maintaining efficient debris collection, making the cleaning process more economical and environmentally friendly.
Implementation Method 1
means for providing underpressure for a suction of the detached material into the air flow
Implementation Method 2
means for providing overpressure for a direction of cleaned air back to the surface
Implementation Method 3
a cyclone for separating the detached material from the air flow
Implementation Method 4
an air-knife arrangement to produce a shear stress directable on to the debris on the surface to be cleaned
Data Source
AI summary
A mobile collection device including a vehicle assisted working device for cleaning surfaces, and an autonomously self-driving robot vehicle. The working device includes a brush for detachment of extraneous material from the surface, a blower configured to provide an underpressure for a suction of the detached material into the air flow from the surface, and a cyclone configured to separate material from the air flow. The blower is configured to provide an overpressure and return of the separated air to the surface. The brush is configured to rotate counter-wise to a forward movement direction of the working device. The working device is configured such that the spot is treated in the following order: the blower provides the underpressure for the suction of the detached materials, the counter-rotating brush brushes the spot, and the blower provides the overpressure and return of the separated air to the surface via an air-knife.