A sea release hook

Abstract

The invention presents a maritime release hook which comprises a body, a left hanging wall, a right hanging wall, a sliding block, a spring, hydraulic wheels, a traction rope and a bow shackle. The upper end of the body is fixedly connected with the bow shackle through a pin shaft, and the lower portion of the body is connected with the left hanging wall and the right hanging wall through pin shafts. The two hanging walls are both provided with hook-like structures and pin shaft holes, and the hook-like structures and the pin shaft holes are matched mutually to form a hook structure capable ofbeing closed and opened. The upper portion of the sliding block is provided with two clamping grooves with lower turnup edges. The lower edges of the clamping grooves are provided with bevels. A sliding block body is located between supporting rod structures. The supporting rod structures are attached to the bevels, and the top ends of the supporting rod structures are located in the clamping grooves. The traction rope extends into the body, and is transited through the hydraulic wheels and then connected to the upper end face of the sliding block along the axis of the spring. The traction rope pulls the sliding block to compress the spring in the axial direction of the spring, the supporting rod structures are opened by the bevels of the lower edges of the clamping grooves of the slidingblock, and the closed hook structure is opened. According to the maritime release hook, the problem that during maritime product craning-deploying, operators need to enter water to release the hook is solved.

Description

technical field [0001] The invention relates to a controllable decoupling device, in particular to a marine long-distance man-operated release hook. Background technique [0002] Many unmanned underwater vehicles play an important role in marine operations such as resource surveying and search and rescue of marine accident personnel. Vehicles can be divided into portable, light, medium and large categories according to displacement. Except for the portable aircraft (displacement less than 50kg) which can be deployed manually at sea, several other types of aircraft need to use the lifting equipment on the ship when deploying. Uncoupling cannot be achieved. In order to overcome this problem, it is often necessary for staff to go into the water and approach the aircraft to complete decoupling. This undoubtedly greatly reduces the safety of the staff. In severe sea conditions, professional divers are even required. The cost of hoisting is greatly increased, which leads to many ...

AI Technical Summary

Problems solved by technology

Except for the portable aircraft (displacement less than 50kg) which can be deployed manually at sea, several other types of aircraft need to use the lifting equipment on the ship when deploying. Uncoupling cannot be achieved. In order to overcome this problem, it is often necessary for staff to go into the water and approach the aircraft to complete decoupling. This undoubtedly greatly reduces the safety of the staff. In severe sea conditions, professional divers are even required. The cost of hoisting is greatly increased, which leads to many unfavorable factors such as difficulty in releasing the aircraft at sea, low safety factor, and high cost

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