A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Portable ladder for power transmission line
The invention discloses a portable ladder for a power transmission line. The portable ladder consists of an upper outer section, a lower outer section, an upper inner section, a lower inner section, a hook and step rods; the top end of the upper outer section is provided with an anti-dropping clamping groove, the left side and the right side of the upper outer section are respectively provided with one step rod, the bottom rear side of the upper outer section is provided with a foldable shaft sleeve with a hinge shaft hole, and the front side of the upper outer section is provided with an anti-bending clamping seat; the top end of the lower outer section is provided with a left foldable connecting plate with a left shaft hole, the right side of the lower outer section is provided with a right foldable connecting plate with a right shaft hole, the front side of the lower outer section is provided with an anti-bending buckle, and the bottom end of the lower outer section is provided with one step rod and the anti-dropping clamping groove; the bottom end of the upper inner section is provided with an anti-dropping clamping plate, the top end is provided with a hook lock shaft outer sleeve, the rear side of the hook lock shaft outer sleeve is provided with a hook, the middle of the hook lock shaft outer sleeve is provided with a rotatable hook lock shaft, a hook lock is fixed on the hook lock shaft, and the front end of the hook lock is provided with a hook lock bayonet; the top end of the lower inner section is provided with an anti-dropping clamping plate, and the bottom end is provided with one step rod and a supporting ejector rod with an arc support. The portable ladder has characteristics of simplicity in structure, convenience in connection, small size, light weight, convenience in carrying, less labor consumption, high safety performance and the like.
Portable ladder for power transmission line
The invention discloses a portable ladder for a power transmission line. The portable ladder consists of an upper outer section, a lower outer section, an upper inner section, a lower inner section, a hook and step rods; the top end of the upper outer section is provided with an anti-dropping clamping groove, the left side and the right side of the upper outer section are respectively provided with one step rod, the bottom rear side of the upper outer section is provided with a foldable shaft sleeve with a hinge shaft hole, and the front side of the upper outer section is provided with an anti-bending clamping seat; the top end of the lower outer section is provided with a left foldable connecting plate with a left shaft hole, the right side of the lower outer section is provided with a right foldable connecting plate with a right shaft hole, the front side of the lower outer section is provided with an anti-bending buckle, and the bottom end of the lower outer section is provided with one step rod and the anti-dropping clamping groove; the bottom end of the upper inner section is provided with an anti-dropping clamping plate, the top end is provided with a hook lock shaft outer sleeve, the rear side of the hook lock shaft outer sleeve is provided with a hook, the middle of the hook lock shaft outer sleeve is provided with a rotatable hook lock shaft, a hook lock is fixed on the hook lock shaft, and the front end of the hook lock is provided with a hook lock bayonet; the top end of the lower inner section is provided with an anti-dropping clamping plate, and the bottom end is provided with one step rod and a supporting ejector rod with an arc support. The portable ladder has characteristics of simplicity in structure, convenience in connection, small size, light weight, convenience in carrying, less labor consumption, high safety performance and the like.
Portable ladder for power transmission line
FENG XIULUN (author) / JIANG CHUANDONG (author) / ZHANG ZONGSHAN (author) / YANG LI (author) / ZHAO RUI (author) / ZHAO XIAOLONG (author) / WANG GUOQING (author) / JI CHANGGUANG (author) / LI QINGHE (author) / LIU YUHAI (author)
2015-10-21
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern
Power transmission line tower operation horizontal ladder
| European Patent Office | 2020