Cable maintenance ladder

Abstract

The invention relates to a cable maintenance ladder, which comprises a main ladder, wherein the main ladder comprises two vertical rods, wherein a group of cross rods is evenly distributed between the two vertical rods; the inner side of each vertical rod is connected with an extension vertical rod in a sliding manner; a groove is formed in the inner side of each extension vertical rod; a group of support plates is evenly distributed in each groove; the support plates in the two extension vertical rods are correspondingly matched with each other; a fixed beam is respectively overlapped with two corresponding support plates; the corresponding side surfaces of the two vertical rods are connected with a first support rod through a hinge seat; and the corresponding side surfaces of the two extension vertical rods are also connected with a second support rod through a hinge seat; and the lower side of each second support rod is movably connected with an extension support rod. The cable maintenance ladder provided by the invention is relatively simple in structure, small in volume, easy to store, retractable, can be applicable to cables with different heights, and does not need to be supported by foreign personnel when used, so that manpower resources are saved; and the ladder is convenient to use, high in stability and safety.

Description

technical field [0001] The invention relates to a ladder, in particular to a cable maintenance ladder. Background technique [0002] Ladders are tools that people often use in their daily lives, and there are various types of ladders used at the present stage. In the field of electric power, ladders are often used to repair cables at high places. The ladders generally used today are H-type ladders, which are composed of vertical bars approximately parallel to each other and horizontal bars fixed on the vertical bars at equal intervals; H When the type ladder is used, the ladder is leaned on the support obliquely, and people can step on the cross bar. But existing ladder is generally all done shorter, usually only has the length of three to four meters, and this is because the structure of ladder itself makes the intensity of ladder be limited; If the length of general ladder is increased to six meters or longer, When it is used vertically or horizontally, the user bears on...

AI Technical Summary

Problems solved by technology

But existing ladder is generally all done shorter, usually only has the length of three to four meters, and this is because the structure of ladder itself makes the intensity of ladder be limited; If the length of general ladder is increased to six meters or longer, When placed vertically or horizontally, the user is carried on it, and the middle part of the ladder will have obvious bending deformation, so it is easier to break than ordinary ladders, thereby reducing safety

And when in use, it is generally necessary to lean the upper end of the ladder on the cable, and the lower end is manually held by people. Others do not have auxiliary fixing devices. When the operator works on the ladder, the stability of the ladder is relatively poor, and it is easy to lose. balance

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