Portable flexible splicing ladder

Abstract

The invention belongs to the technical field of accommodation ladders for ships and discloses a portable flexible splicing ladder. The ladder comprises ladder frames and flexible connecting devices; and the adjacent ladder frames are rotatably connected through the flexible connecting devices. Each flexible connecting device comprises a connecting block, a pin shaft, a nylon lining body, a screw and a nut; the nylon lining body is fixedly arranged on one of the two adjacent ladder frames through the screw; the connecting block is fixedly arranged on the other ladder frame and corresponds to the nylon lining body; the connecting block extends towards the outer side of the edge of the ladder frame, and the extending tail end of the connecting block is rotatably connected with the nylon lining body through the pin shaft. Roller assemblies are arranged on the lower portions of the left sides and the right sides of the ladder frames; each roller assembly comprises a roller support, a bolt,a self-locking nut and a roller; an anti-disengagement device is arranged at the front end of the ladder frame at the head end. Therefore, the ladder has the advantages of simple structure, convenience in disassembly, suitability for various irregular slopes or curved surfaces, wide application range, high practicability and high safety.

Description

technical field [0001] The invention relates to the technical field of gangway ladders for ships, in particular to a portable flexible splicing ladder. Background technique [0002] At present, in order to reduce the resistance of the navigation process, the ship is generally designed to be streamlined, especially the bow and stern hulls, which have a large line shape, and there are many non-planar positions such as different slopes or irregular slopes on the ship, which brings great difficulties to the layout of ladders. Difficulties, especially the cargo hold and ballast tank need to meet the position of the inspection channel and need to arrange portable ladders, and the position of the cargo tank near the bow is relatively large, so that the position of the cargo tank side inspection channel cannot be hung with ordinary straight ladders, and the longer straight The ladder cannot be bent, and the irregular line makes it impossible to install a long straight ladder. If the...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to reduce the resistance of the navigation process, the ship is generally designed to be streamlined, especially the bow and stern hulls, which have a large line shape, and there are many non-planar positions such as different slopes or irregular slopes on the ship, which brings great difficulties to the layout of ladders. Difficulties, especially the cargo hold and ballast tank need to meet the position of the inspection channel and need to arrange portable ladders, and the position of the cargo tank near the bow is relatively large, so that the position of the cargo tank side inspection channel cannot be hung with ordinary straight ladders, and the longer straight The ladder cannot be bent, and the irregular line shape makes it impossible to install a long straight ladder. If the straight ladder is hung in sections, it is difficult to climb, and the safety is low

Ordinary portable ladders can only be designed to be suitable for a specific location, and portable ladders of various specifications need to be designed for the inspection channel of the whole ship, and the use of portable ladders is seldom, resulting in waste of resources

Images