Road Sweeper Suction Module With Gap-Controlled Dustpan
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Solution Overview
Problem
Road surface cleaning vehicles face issues with insufficient suction capacity and leakage of foreign objects (FO) due to interference with the vehicle structure and uneven road surfaces, leading to incomplete dust collection and re-deposition of FO on the road surface.
Innovation Solution
A cleaner module with a frame, lifting device, sensor-controlled dustpan, and a spraying member that maintains a consistent gap with the road surface, uses a transfer device to collect FO into a storage tank, and employs a turbofan to create a vacuum for efficient suction and collection, while preventing FO leakage by blocking the inlet during stops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a long and inclined suction tube is used to reach the road surface, then the suction device can clean the road surface, but foreign objects fall due to interference with the vehicle structure
Solution Approach 1:
The suction tube is divided into multiple sections that can be extended or retracted independently. This segmentation allows the suction tube to reach the road surface when needed while being retracted to prevent foreign object interference during vehicle movement, resolving the contradiction between length and reliability.
Solution Approach 2:
The suction tube is designed with dynamic extension and retraction capabilities, allowing it to adapt its length based on operational requirements. When cleaning, the tube extends to reach the road surface; when moving, it retracts to avoid interference, thus maintaining both cleaning effectiveness and foreign object retention.
2Ease of operation
If the inlet of the suction device is raised to prevent interference, then vehicle movement is facilitated, but cleaning work cannot be performed
Solution Approach 1:
The suction device inlet is designed to be dynamically adjustable in height. During vehicle movement, the inlet is raised to prevent interference with the road surface, facilitating ease of operation. During cleaning operations, the inlet is lowered to maintain contact with the road surface, ensuring cleaning productivity. This dynamic adjustment resolves the contradiction between ease of operation and productivity.
3Adaptability or versatility
If a flexible bellows tube is used in the suction tube, then the suction device can adapt to road surface unevenness, but suction resistance increases
Solution Approach 1:
The suction tube is segmented into rigid and flexible sections. The rigid sections maintain structural integrity and minimize suction resistance, while the flexible sections provide adaptability to road surface unevenness. This segmentation allows the system to achieve both road surface adaptation and reduced energy loss.
Solution Approach 2:
Different sections of the suction tube have different properties: rigid sections for minimal resistance and flexible sections for adaptation. This local quality differentiation allows the suction tube to adapt to road surface unevenness where needed while maintaining low suction resistance in critical sections, resolving the contradiction between adaptability and energy loss.
4Device complexity
If the suction capacity is insufficient, then the vehicle structure is simpler, but foreign objects do not reach the storage tank and fall back on the road surface
Solution Approach 1:
The suction device incorporates dynamic adjustment mechanisms that optimize suction capacity during cleaning operations. The system can adjust the suction tube position, inlet height, and vacuum pressure dynamically to ensure foreign objects are effectively collected and transported to the storage tank, maintaining reliability without requiring a completely redesigned complex structure.
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 cleaner module enhances FO suctioning performance by maintaining a consistent gap with the road surface, improving collection efficiency and preventing FO leakage, ensuring complete removal of debris during cleaning operations.
Implementation Method 1
A road surface cleaning vehicle generates a vacuum negative pressure with a turbofan suctioning air of a dust storage tank
Implementation Method 2
a transfer device rotated with a worm and worm gear when a transfer device driving motor is operated
Data Source
AI summary
A cleaner module is disclosed. A system is a suction device for cleaning a road surface, which is combined with a vehicle, the system comprising: a spraying member that increases air volume; a dustpan that moves the suction device near the road surface by using a lifting device, serves as a guide for suctioned FO, and controls the gap with the road surface; a transfer device that uses a vacuum; an FO sensor that controls the transfer device; a controller, and a storage tank.