Telescopic boarding ladder and using method

Abstract

The invention discloses a telescopic boarding ladder and a using method. The telescopic boarding ladder comprises an L-shaped mounting plate, a winch device is mounted at one end of the top of the L-shaped mounting plate, a fixing eye plate is mounted at the other end of the top of the L-shaped mounting plate, connecting plates are symmetrically mounted at the two ends of the top of the outer sideof the L-shaped mounting plate, and the inner sides of the two connecting plates are jointly hinged to an upper ladder body. A middle ladder is arranged on the side, away from the winch device, of the upper ladder, and a lower ladder is arranged on the side, away from the upper ladder, of the middle ladder. Through cooperative use of the upper ladder, the middle ladder, the lower ladder, the steel wire rope, the pulley device, the second wire guide wheel, the first wire guide wheel and the sliding groove, the vertical distance between the offshore platform and the cargo ship can be within anyproper range, and people on the cargo ship can conveniently climb onto the offshore platform through the boarding ladder; and the height of the offshore platform does not need to be adjusted by descending, so that the functionality and the practicability of the telescopic boarding ladder are greatly improved.

Description

technical field [0001] The invention relates to the technical field of boarding ladders, in particular to a retractable boarding ladder and a use method thereof. Background technique [0002] The current self-elevating offshore operation platform, the hull is higher than the water surface during operation, it is very inconvenient to climb directly through the suspension rope, and the sea is windy and rough, which is not conducive to the safe boarding of personnel, so it is necessary to use the corresponding telescopic A boarding ladder is provided so that boarding personnel can board or evacuate safely and quickly. [0003] The length of the boarding ladder on the current self-elevating offshore work platform is usually fixed. When the distance between the cargo ship splint and the offshore platform is greater than the length of the boarding ladder, it is usually necessary to reduce the height of the entire offshore platform to facilitate the cargo ship. If someone accident...

AI Technical Summary

Problems solved by technology

[0002] The current self-elevating offshore operation platform, the hull is higher than the water surface during operation, it is very inconvenient to climb directly through the suspension rope, and the sea is windy and rough, which is not conducive to the safe boarding of personnel, so it is necessary to use the corresponding telescopic Type boarding ladder so that boarding personnel can board or evacuate safely and quickly

[0003] The length of the boarding ladder on the current self-elevating offshore work platform is usually fixed. When the distance between the cargo ship splint and the offshore platform is greater than the length of the boarding ladder, it is usually necessary to reduce the height of the entire offshore platform to facilitate the cargo ship. If someone accidentally falls into the water, the boarding ladder with insufficient length often makes it difficult for the person who falls into the water to re-board the offshore platform through the boarding ladder, and cannot freely adjust the length of the boarding ladder according to actual needs, thus The practicability and functionality of the boarding ladder are reduced; and the boarding ladder on the current self-elevating offshore work platform is usually installed vertically on one side of the offshore platform, and the personnel on the cargo ship pass through the boarding ladder in the vertical state. Climbing is very laborious and the safety is low. If the personnel on the cargo ship want to board the vertical boarding ladder, the cargo ship needs to be very close to the offshore platform. Once the waves fluctuate, it is easy to cause the cargo ship to collide with the offshore platform. , very unsafe, unable to freely adjust the inclination angle of the boarding ladder, and control the distance between the offshore platform and the cargo ship, thereby greatly reducing the scope of application of the boarding ladder; The ladder also needs manpower to stretch it out, and the functionality of the boarding ladder is low, and the scope of use is very limited

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