Novel long rod sling

Abstract

The invention discloses a long rod sling, which includes a hoisting ring (1) and a grabhook assembly composed of a bracket (4) and a grabhook (11). The hoisting ring (1) and the bracket (4) are in rigid connection through a vertically arranged connecting pipe (3), the inside of which is provided with a transmission rod (8). A driving mechanism driving the upward and downward movement of the transmission rod (8) is disposed on the hoisting ring (1). The lower end of the transmission rod (8) is in connection with the grabhook (11), which closes or opens along with the upward and downward movement of the transmission rod (8). For the long rod sling disclosed in the invention, by arranging a long rigid connecting pipe between the hoisting ring (1) and the grabhook assembly, and by disposing the transmission rod in the connecting pipe and disposing the driving mechanism on the hoisting ring to drive the upward and downward movement of the transmission rod, the grabhook can close or open, thus ensuring a distance between the operation staff and a specific article, and avoiding the situation that the operation staff suffer from radioactive or toxic harm. Moreover, the safety and reliability of specific article hoisting operation can be guaranteed.

Description

technical field [0001] The invention relates to a sling, in particular to a long rod sling, which is suitable for lifting heavy objects in the shape of mushroom heads, and realizes long-distance operation and transfer. Background technique [0002] A spreader is a device for grabbing objects to be hoisted on a lifting device. At present, the most commonly used spreaders include hooks, rings, electromagnetic suckers and clamps. However, in some professional fields, it is also necessary to design corresponding special spreaders to meet their applications. For example, slab clamps, steel plate spreaders, and steel coil spreaders for steel mills; vacuum spreaders for precision electronics and pharmaceutical industries; container spreaders for port operations; container lifts for lifting fluid materials Barrels and hanging tanks, etc. [0003] Although the above-mentioned numerous forms of commonly used spreaders and special spreaders have been able to meet most of the applicat...

AI Technical Summary

Problems solved by technology

[0004] For the hoisting work of the above-mentioned specific items, neither the existing common spreader nor the special spreader can meet its safety requirements, because the existing spreader and the lifting equipment use flexible parts (such as steel chain cable or wire rope, etc.), and the distance between the hoisting point of the spreader and the suspension point on the top of the spreader is relatively short, therefore, there are some disadvantages in the lifting work of this particular item as follows:

[0005] (1) Since the loading, unloading and transshipment of specific items are all completed underwater, and the corresponding thickness of the water shielding layer must be ensured, the distance between the hoisting point of the above-mentioned existing spreader and the suspension point on the top of the spreader Short, the underwater depth of a specific item is difficult to accurately observe;

[0006] (2) Since the flexible parts will swing with the movement of the lifting equipment, it is difficult to achieve precise positioning of the spreader, which increases the difficulty of picking up items;

[0007] (3) During the underwater transfer of items, the vertical height cannot always be kept consistent, especially at the moment of starting, stopping or shifting, due to the existence of inertia, the items may fluctuate up and down. Items fluctuate upwards and break through the water barrier, which will bring unforeseen disasters

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