Folding boarding ladder

Abstract

The invention relates to a folding boarding ladder. The folding boarding ladder is composed of a multi-layer pedal and a plurality of sets of folding mechanisms. The middle part of the multi-layer pedal is a wooden board, two sides of the pedal are covered with metal protection boards, and two rotating shafts are arranged at the two ends of the metal protection boards. Each set of folding mechanism is composed of a rotating connecting rod and a set of folding connecting rods, and each set of folding connecting rods is formed by connecting a long connecting rod with a short connecting rod; therotating connecting rods and the folding connecting rods are separately connected to the two rotating shafts at opposite corners on the upper and lower pedals. The folding boarding ladder can be suspended and installed at the bottom of a compartment, and does not occupy the placement space on a vehicle; the unfolding and erection of the folding boarding ladder are not affected by terrain, and safety and stability are achieved; the operation is convenient, and the rapid unfolding and withdrawal and collecting can be realized; and the degree of contraction is high, and large protrusions are notformed on the appearance of a vehicle body after contraction.

Description

technical field [0001] The invention belongs to the field of ground support equipment, and relates to a folding climbing ladder, in particular to a vehicle-mounted hanging folding climbing ladder. Background technique [0002] The missile ground vehicle launch system includes various mission platforms. Due to the consideration of military off-road performance, this type of platform often has a high chassis, and various functional modules erected on the chassis are generally higher than the reach of ordinary people. Auxiliary operation of equipment such as ladders. Existing climbing ladders mainly include two types of H-shaped ladders and wooden inclined ladders, and the following problems are prone to occur in practical applications: [0003] 1) These two types of ladders and vehicle-mounted platforms are separated and require special storage space; [0004] 2) The H-shaped ladder is a temporary erection type, and its stability and safety are difficult to guarantee due to ...

AI Technical Summary

Problems solved by technology

[0003] 1) These two types of ladders and vehicle-mounted platforms are separated and require special storage space;

[0004] 2) The H-shaped ladder is a temporary erection type, and its stability and safety are difficult to guarantee due to the influence of the position environment and vehicle-mounted equipment;

[0005] 3) Most of the existing H-shaped ladders are retractable, but their deployment and storage are inconvenient and time-consuming;

[0006] 4) The wooden inclined ladder is a platform-type climbing ladder, and its stability is better than that of the H-shaped ladder. However, its structure is bulky and bulky, and it needs to occupy a large vehicle space, which affects the placement of task equipment. It is also very inconvenient to lay it in place, and it takes a lot of money manpower

Images