UAV Hanging Structure with Gravity-Closing Hook Claws
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Solution Overview
Problem
Unmanned aerial vehicles (UAVs) face issues with hanging objects unhooking during loading and unloading, and rehooking after unloading due to the floating of hanging objects when struck, which poses a risk of the objects falling.
Innovation Solution
A hanging structure with a hook-shaped body and hook claws, where the hook opening is kept closed during hanging by a heavier second claw portion, and a retracting and releasing apparatus with an anti-falling mechanism to prevent unhooking and rehooking, ensuring the hanging object remains secure during delivery and unloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional hanging hook is used, then the structure is simple, but the hook opening may open during hanging causing the object to unhook
Solution Approach 1:
The hook is divided into a hook-shaped body and separate hook claws that can move independently. The hook claws are pivotally connected to the hook-shaped body, allowing them to open and close the hook opening as needed while the main body remains stable.
Solution Approach 2:
The hook claws are designed to be movable rather than fixed, allowing dynamic adjustment of the hook opening state. The claws can automatically close when the UAV rises and open when the UAV descends, adapting to different operational phases.
2Reliability
If the hook opening is kept closed during hanging, then unhooking is prevented, but the hanging object cannot be loaded or unloaded
Solution Approach 1:
The hook claws are designed to dynamically change state based on UAV motion. During loading/unloading when the UAV is stationary or descending, the claws remain open or can be manually opened. During ascent, the claws automatically close to secure the load.
Solution Approach 2:
The hook claws automatically close when the UAV rises due to the mechanical connection and gravity acting on the heavier second claw portion, without requiring manual intervention. This self-closing mechanism ensures security while maintaining ease of operation during loading phases.
3Adaptability or versatility
If the hanging object is allowed to float when struck, then the object can move freely, but the object may unhook and fall
Solution Approach 1:
The hook claws provide dynamic adaptation to object movement. When the object floats or moves freely during descent, the claws remain in a state that allows movement. When the UAV rises and the object becomes stable, the claws automatically close to secure the object, preventing unhooking even if the object moves.
Solution Approach 2:
The hook claws are positioned and weighted to prepare for potential unhooking events. The heavier second claw portion creates a moment that tends to close the hook opening in advance, creating a preventive mechanism against unhooking before it can occur during object floating or movement.
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 prevents the hanging object from unhooking during delivery and rehooking after unloading, maintaining stability and safety by using a mechanism that keeps the hook opening closed and includes an anti-falling mechanism to prevent accidental drops.
Implementation Method 1
The second claw portion is heavier than the first claw portion. When the hanging structure is in a hanging state, a first end of the first claw portion abuts against the abutting portion, and the hook opening is closed.
Data Source
AI summary
A hanging structure applicable to an unmanned aerial vehicle includes a hook-shaped body and at least one hook claw. The hook-shaped body has a bottom, at least one pivoting end, and an abutting portion. A hook opening is provided between the at least one pivoting end and the abutting portion and is opposite to the bottom. In addition, the at least one hook claw has a pivoting portion, and a first claw portion and a second claw portion that extend from the pivoting portion, respectively. The pivoting portion is pivoted to the at least one pivoting end. The second claw portion is heavier than the first claw portion. When the hanging structure is in a hanging state, a first end of the first claw portion abuts against the abutting portion, and the hook opening is closed. An unmanned aerial vehicle hanging system including the above hanging structure is further provided.