Construction ladder with quick-folding guardrail installed

Abstract

The invention provides a construction crawling ladder provided with a quickly folded guard bar. The construction crawling ladder comprises a crawling ladder main body, an elastic bayonet lock A and anelastic bayonet lock B. The crawling ladder main body is composed of a longitudinal supporting rod A, a longitudinal supporting rod B and a foot rest lever. Six clamping blocks are also welded in a matrix array below the right end surface of a guard bar main body. By arranging the guard bar main body, an elastic fixing structure and the clamping blocks, as the guard bar main body is rotatably connected to the crawling ladder main body, the occupied space of the device can be reduced when the crawling ladder is placed after use. The rectangular blocks on the elastic fixing structure are as same as rectangular holes formed in the clamping blocks in size, so that the crawling ladder is fixed when the guard bar main body is unfolded by matching the rectangular blocks with the rectangular holes. By matching a cylindrical rod B and a retainer ring on the elastic fixing structure, axial rotation of a cylindrical rod A can be limited, so that the condition that the rectangular blocks cannot be aligned with the rectangular holes as the cylindrical rod A drives the rectangular blocks to rotate axially is prevented.

Description

technical field [0001] The invention belongs to the technical field of construction ladders, and more specifically relates to a construction ladder equipped with fast folding guardrails. Background technique [0002] With the rapid development of my country's economy and urban infrastructure, the demand for various types of mechanical equipment is also increasing. As the basic equipment of urban construction, the utilization rate of climbing ladders has been very high for a long time. In daily life, people often use Ladders are used to pick up things placed on high places. Ladders are more common in the decoration and construction industries. The ladders generally used today are H-shaped ladders. The crossbar on the pole is composed of; when the H-type ladder is used, the ladder is leaned on the support obliquely, and people can step on the crossbar. However, when using the ladder for climbing, the danger is extremely high, so the ladder Some protective structures need to be s...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a construction ladder equipped with a quick-folding guardrail to solve the problem that the existing safety is low and the climbing operation is extremely dangerous. Few features, such as the setting of guardrails, can limit the range of activities of the operators. On the one hand, the guardrails can be used as hand support points to enhance the standing stability of the operators, and on the other hand, prevent the operators from falling from the ladder due to the center of gravity shift; the structure Fixed, poor adjustability, there are still a small number of ladders with guardrails at present. However, its structure is relatively fixed, and it cannot be quickly turned to open the guardrail during use to provide safety for the workers. After use, it can be turned and closed quickly to reduce storage. Occupation of space; the suitable range is small, the existing ladder is mainly used to carry out work on the wall, and cannot be adapted to the problem of carrying out work on cylindrical objects such as utility poles at the same time

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