Electric ladder capable of realizing rapid climbing under dangerous condition of borehole operation

Abstract

The invention belongs to the technical field of ladders, and particularly relates to an electric ladder capable of realizing rapid climbing under a dangerous condition of borehole operation. The electric ladder comprises ladder bodies, wherein a plurality of groups of ladder bodies are in stacked sliding connection; the inner side wall of the middle part of each ladder body is fixedly connected with an electric cylinder; the side wall of each electric cylinder is fixedly connected with a protective shell; each protective shell sleeves the corresponding ladder body; the inner side wall of the top of each protective shell is in sliding connection with a sleeve shell; and each sleeve shell sleeves the output end of the corresponding electric cylinder. The protective shells and the sleeve shells are arranged on a motor to protect the motor; meanwhile, when the electric cylinders extend, the sleeve shells can extend out of the interiors of the protective shells to protect extending electric cylinder output rods; by the arrangement of the protective shells and the sleeve shells, the electric cylinders are protected from being easily influenced by external small stones; and when small stones and sand fall down from a well, the problem that the small stones and the sand are in direct contact with the electric cylinders to influence the normal work of the electric cylinders is avoided, and the stability of the ladder bodies during working and unfolding is improved.

Description

technical field [0001] The invention belongs to the technical field of climbing ladders, and in particular relates to an electric climbing ladder which realizes rapid climbing under dangerous conditions of underground operations. Background technique [0002] Ladder is a tool that is often used in daily life and construction scenes. There are also ladders in various states, such as folding ladders, telescopic ladders, etc. [0003] There are also some technical solutions about climbing ladders in the prior art. For example, a Chinese patent with application number 2016110189964 discloses a climbing ladder mechanism for inspection wells, including a ladder, one of which is arranged at intervals up and down along one side wall of the inspection well. Pre-embedded bracket 1 and at least two pre-embedded brackets 2. The top of the ladder has a bent part for hooking on the well edge of the inspection well. Inoue. [0004] In the current prior art, during the use of the electric...

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Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology, it is solved that because the underground ladder is in a dark and humid environment with a lot of gravel for a long time, during the standby process of the electric ladder, there will be falling rocks and gravels inside the inspection well. When it collides with the electric cylinder on the ladder, the electric cylinder will be damaged. In severe cases, the electric cylinder cannot be used normally. The invention proposes an electric climbing ladder that realizes rapid climbing under dangerous conditions of underground operations.

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