A automatic extension ladder for electric power engineering overhauls

• Main Authors: ZHAI ZHIFENG, WANG CONG, XING SHANGLIN, LI ZHIYI, WANG YONG
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2017
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; LADDERS

The utility model discloses an automatic extension ladder for electric power engineering overhauls, including the hawser receive and release round, telescopic link, heavily personally experience sth. Part of the body footboard and wire pole mechanism, the hawser receive and releases the bottom fixedly connected with hawser of wheel, the outside of telescopic link is connected with the footboard connector link, and the bottom fixedly connected with of telescopic link prevents putting the fixed hook, prevent putting the fixed hook and prevent the fixed inside looks gomphosis of detaining of pendulum, the footboard of heavily personally experiencing sth. Part of the body is connected with the telescopic link, and it installs in the bottom position of telescopic link, be connected through the pole band stationary phase between lifting motor and the wire pole mechanism, the warning light is all installed in the both ends outside of telescopic link, and is electric connection between warning light and the electrica