In contrast to the pain points of traditional mooring bollards—such as heavy reliance on manual hauling, low mooring-release efficiency, and high safety risks—the Quick Release Hook (QRH) achieves significant upgrades through mechanized and intelligent design. Its core structure typically comprises a hook body, a locking and releasing mechanism, and an electric winch (equipped on some models). For mooring operations, the main cable can be quickly hooked onto the body via a messenger rope. For release operations, flipping the hook body to disengage the cable can be accomplished simply by toggling a lever, pressing a button (or via remote control), leveraging the cable’s tension or spring force to complete the process. This not only drastically cuts down operation time and reduces manual labor intensity but also ensures rapid vessel evacuation in emergencies (e.g., dock accidents, vessel risk avoidance), thereby minimizing safety risks to equipment and personnel.
In terms of technical characteristics, mainstream QRH products boast multiple advantages.
- Safety Performance: They can withstand a safe working load (SWL) ranging from 50 to 150 tonnes. Critical components undergo 3D modeling analysis and tension tests at 1.25 times the rated load. Electrical equipment complies with explosion-proof standards (e.g., ATEX/IECEx certification). Some models integrate load-measuring pins, which can monitor cable tension in real time and trigger overload alarms.
- Adaptability: The market offers both standardized products, such as the dual-hook/triple-hook 'Ready Moor' series by Trelleborg (with an average delivery time of 12 weeks), and customizable solutions—including integrated turnkey packages by Glen Engineering that cover project consultation, installation, and commissioning. For scenarios with large water level fluctuations, detachable structures are available (e.g., fully submersible QRH systems for Yangtze River docks, which feature anti-corrosion coatings and lubrication grooves to address sediment accumulation and prolonged immersion issues).