Lifting Device With Vertical Guide Rails For Refuse Containers
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Solution Overview
Problem
Existing lifting devices for underground refuse collection containers are limited to open containers and have unfavorable force distribution, requiring robust articulated arms and pneumatic cylinders, and are not suitable for precise placement on refuse collection vehicles.
Innovation Solution
A lifting device with two parallel telescopically extendable booms and an elevator mechanism with vertical guide rails, equipped with coupling tools like electromagnets or grippers, allowing for secure coupling and lifting of containers with lids and chutes, even when not horizontally positioned, and capable of operating at acute angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If articulated arms are pivotally mounted in the lower part of the refuse collection vehicle, then the device can lift and empty containers, but the force distribution on the articulated arms is unfavorable and they must be very robustly designed
Solution Approach 1:
The patent introduces a support structure with vertical guide rails as an intermediary element between the lifting cylinders and the containers. This support structure bears and guides the lifting forces, replacing the need for robust articulated arms. The support structure with guide rails acts as a mediator that transforms the lifting mechanism into a more efficient force distribution system.
2Ease of operation
If a lateral rail system with forks is provided on the refuse collection vehicle, then the vehicle can grip containers, but the vehicle has to be positioned very precisely opposite the waste container
Solution Approach 1:
The patent makes the support structure movable along the vertical guide rails, allowing dynamic adjustment of the support position. This dynamic capability enables the lifting device to accommodate containers at various positions without requiring precise vehicle alignment, as the support can move vertically to match the container height and position.
3Adaptability or versatility
If the lifting device uses two telescopic poles pivotally mounted in the lower part, then it can lift containers, but it can only be used for open waste containers
Solution Approach 1:
The patent designs the coupling device with a universal coupling element that can interact with different container types including those with lids and chutes. The coupling element is configured to engage with various container configurations, making the lifting device versatile for different waste container types while maintaining a relatively simple lifting mechanism 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
Enables efficient lifting and tilting of refuse collection containers with improved force distribution, accommodating containers on uneven or inclined surfaces, and simplifies the process of emptying underground bins without the need for precise vehicle alignment.
Implementation Method 1
the coupling tool is designed using an electromagnet
Data Source
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Figure 5~6
AI summary
A lifting device (15) on a truck (18) is described, which is designed for lifting and emptying underground waste collection containers (1), and which has two parallel telescopically extendable booms (7), each of which has a coupling tool (9) for detachably coupling to a side edge of a waste collection container. A lifting mechanism is provided with two parallel, vertical guide rails (16) and a support (20) arranged between the guide rails and movable up and down along them, to which the booms (7) are pivotably attached.