23-07-2014 дата публикации
Номер: CN103944088A
Принадлежит:
The invention provides a power maintenance ladder which can provide more convenient technical support for power maintenance in which multiple persons participate at the same time, and with the power maintenance ladder, the maintenance personnel can be supervised and reexamined in real time. The power maintenance ladder comprises two supporting legs (1) and a plurality of beams (2) and is characterized by further comprising a first observation device (7), a first sleeve (3) and connecting rods (4), the first observation device (7) comprises an upper observation opening (5) and a lower observation opening (8), and the upper observation opening and the lower observation opening are connected through a light pipe; the scene in front of the upper observation opening (5) is reflected to a lower mirror body (10) through an upper mirror body (10); the first observation device (7) is inserted into the first sleeve (3) in a connected mode, and the first sleeve (3) is connected with the supporting ...
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