Side-switchable Guide Arm for Suction Dredger Traffic Adaptation
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Solution Overview
Problem
Suction excavators face challenges in safely navigating one-way streets and adapting to different traffic conditions due to the fixed orientation of their suction hoses, limiting their operational flexibility and safety in various traffic environments.
Innovation Solution
A suction dredger with a pivotable guide arm and linear drive mechanism, allowing the suction nozzle to be repositioned on either side of the vehicle, enabling safe operation in both left-hand and right-hand traffic conditions, and equipped with locking mechanisms for enhanced safety and a range of arm segments for extended reach.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the suction hose is fixed on one side of the suction dredger, then the structure is simple, but the dredger cannot safely access one-way streets or adapt to different traffic conditions
Solution Approach 1:
The guide arm is made movable and pivotable around a vertical axis, allowing it to switch between left and right positions. This dynamic configuration enables the suction hose to be repositioned according to traffic conditions, resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The guide arm serves multiple functions: it can position the suction hose on the left side for right-hand traffic, on the right side for left-hand traffic, and in the center for bidirectional streets. This multi-functionality achieves traffic condition adaptability without proportionally increasing structural complexity.
2Adaptability or versatility
If the guide arm is made movable to switch sides, then traffic adaptability improves, but the device complexity and control difficulty increase
Solution Approach 1:
The guide arm is equipped with a locking mechanism that automatically secures the arm in its selected position (left, right, or center). This self-locking feature reduces the need for continuous active control and simplifies operation, counterbalancing the increased mechanical complexity with automated safety features.
3Adaptability or versatility
If the suction nozzle length is increased to reach both sides, then the working range expands, but the hose length and complexity increase
Solution Approach 1:
Instead of using a single long hose that would be complex and difficult to manage, the invention uses a movable guide arm that dynamically repositions a standard-length hose. This approach achieves the same working range expansion without the complications of an excessively long hose system.
Data Source
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AI summary
The invention relates to a suction dredger (1) for receiving suctioned material, such as soil around subterranean pipe lines or mud, with a pneumatic suction turbine (2) for generating a suction air flow, which is connected to a collecting container (3), into which a suction hose (4) opens, wherein the suction hose (4) is designed to be movable by a guide arm (5) rotatable on a vertical axis of rotation (6), in order to extend the working range of the suction dredger. The subject matter of the invention solves this problem by designing a vertical axis of rotation (6) of the guide arm (5) so as to be movable.