Cage ladder

Abstract

The invention relates to a cage ladder, comprising a ladder for climbing; a support connected with a fixing point for fixing the ladder; a protective cover mounted on one side of a climbing face of the ladder in a fastened manner and forming on the climbing face of the ladder a passage for a user to climb up and down. The defects of the prior art are overcome, the cage ladder is reasonable in structural design, easy to manufacture, accurate to connect and position, safe and highly reliable, and convenient to use; a maintainer can climb the ladder within the protective cover without the concern for falling danger, thus having improved safety coefficient.

Description

technical field [0001] The invention relates to the field of oil exploitation, in particular to a cage ladder for supporting an oil pumping unit. Background technique [0002] There are two types of oil production methods in oilfields. One is to use the natural pressure of the oil field to lift crude oil, commonly known as self-injection oil production; the other is to rely on artificial supplementary pressure to lift crude oil to the ground due to insufficient natural pressure, commonly known as artificial lift production. , the oil production method of pumping unit accounts for 90% of the number of artificial lift wells, so it can be seen that the oil production method of pumping unit is the most important oil production method at present. [0003] During the long-term operation of the pumping unit, various parts will wear out, especially after the top parts of the pumping unit are damaged, the staff often need to climb up and down on the support to carry out the work, but...

AI Technical Summary

Problems solved by technology

[0003] During the long-term operation of the pumping unit, various parts will wear out, especially after the top parts of the pumping unit are damaged, the staff often need to climb up and down on the support to carry out the work, but at present, the pumping unit is equipped with The structure of the ladder is relatively simple, and it is only composed of simple welding of steel bars. It is difficult to ensure the safety of the staff during climbing operations, making climbing the ladder on the bracket a dangerous job, and it may fall if you are not careful. Due to the height of the pumping derrick Large, falling from the ladder will cause very serious consequences, even endangering the lives of staff

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