An adjustable pull ladder, a mobile substation base and a mobile substation

Abstract

The invention relates to an adjustable drawing ladder, a mobile substation pedestal and a mobile substation. The adjustable drawing ladder comprises at least two ladder sections; any two adjacent ladder sections form an upper ladder section and a lower ladder section which are arranged oppositely; the upper ladder section and the lower ladder section are rotatably connected through a hinged shaft,so that the lower ladder section can turn down relative the upper ladder section around the hinged shaft; and top supporting structures which are positioned above the hinged shaft and are used for performing corresponding top push cooperation are arranged on the opposite sides of the upper ladder section and the lower ladder section correspondingly, so that the two ladder sections are mutually supported to form a stair structure when the lower ladder section turns up relative to the upper ladder section around the hinged shaft. In the any adjacent two ladder sections, the lower ladder sectioncan turn down relative to the upper ladder section; according to the actual use requirement, the number of the drawn ladder sections is adjusted; the ladder sections are supported mutually to form the stair structure through cooperation of the supporting structures and the hinged shaft; and the included angle between the adjustable drawing ladder and the ground is adjustable, so that the adjustable drawing ladder is convenient for people to go up and down.

Description

technical field [0001] The invention relates to an adjustable pull ladder, a base of a mobile substation and a mobile substation. Background technique [0002] With the continuous growth of my country's economy, the construction of power grid has developed rapidly, but there are still some areas where the power grid system is not perfect, and a large number of electrical equipment is old and aging, which leads to the inability to cope with sudden load growth and tight faults, which lead to power outages, or some areas. Insufficient power, substation maintenance, load transfer or temporary power supply, etc., paralyzes the substation system in the area and cannot supply power normally. At this time, the conventional fixed substation cannot solve the above problems due to the long construction period, which will lead to accidents. Prolonged power outages in the area. [0003] Mobile substations emerged as the times require. When placing existing mobile substations on site, it i...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a pull-out ladder to solve the technical problem in the prior art that all ladder sections must be pulled out when the pull-out folding ladder is in use, so that the height of the stairs cannot be adjusted and is not suitable for use in mobile substations. The invention also provides a mobile substation base and a mobile substation

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