Road Cleaning Front Unit With Tilting Hood and Unified Activation
Solution Overview
Problem
Existing street cleaning vehicle front ends require complex control systems and additional drive units to manage separate sweeping, suction, and liquid application units, leading to increased complexity and effort in operation.
Innovation Solution
A front structure where the liquid unit and suction unit are activated together, and the sweeping and vacuuming units are activated together, eliminating the need for separate control of each unit, and utilizing a tilting cleaning hood to facilitate operations without an additional drive unit for the suction unit, allowing for efficient and reliable cleaning with reduced control effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate control of each cleaning unit (sweeping, suction, liquid application) is provided, then operational flexibility is improved, but device complexity and control effort increase
Solution Approach 1:
The patent combines multiple cleaning units (sweeping unit, suction unit, liquid application unit) into a single integrated front structure that is activated together as one system. This merging approach reduces the need for separate control mechanisms for each unit, thereby simplifying the control system while maintaining the ability to perform multiple cleaning functions simultaneously.
Solution Approach 2:
The front structure is designed as a universal cleaning system that can perform sweeping, suction, and liquid application functions through a single integrated unit. This multi-functionality allows the system to handle various cleaning tasks without requiring separate specialized controls for each function, reducing overall system complexity.
2Adaptability or versatility
If additional drive units are added for separately moving the suction unit, then operational versatility is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The suction unit is integrated into the front structure and activated together with the sweeping and liquid application units, eliminating the need for separate drive units. This merging of functions reduces the number of mechanical components required, thereby simplifying manufacturing and reducing production costs.
Solution Approach 2:
The patent removes the unnecessary additional drive units for separately moving the suction unit by integrating it into the main front structure. This extraction of redundant components simplifies the overall system design and reduces manufacturing complexity while maintaining operational versatility through the integrated activation of all cleaning functions.
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
This configuration simplifies the control effort, reduces manufacturing complexity, and enables effective cleaning of both solid and liquid contaminants by allowing all units to be activated simultaneously, ensuring thorough and efficient floor surface cleaning.
Implementation Method 1
the movement into the working position is effected by gravity
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The stem (1) has a fluid unit applying liquid to a road surface. A suction unit is provided for sucking impurities e.g. oil and grease, from the road surface. A sweeping unit, the suction unit and the fluid unit are activated simultaneously. A cleaning cover (7) is arranged from a starting position into a horizontal position for applying the liquid in an inclined position for suction process and vice versa. A lever mechanism (18) is provided for generating tilting motion of the cleaning cover by folding movement.