Electric power overhaul herringbone ladder
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 张谦荣
- Publication Date
- 2021-04-20
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the field of electric power technology, in particular to an electric power maintenance ladder. Background technique
[0002] Electricity is an energy source powered by electrical energy. Invented in the 1870s, the invention and application of electricity set off the second industrialization climax. It has become one of the three scientific and technological revolutions in the world since the 18th century in human history. Since then, technology has changed people's lives.
[0003] For example, the Chinese invention publication number is: a kind of ladder for electric power maintenance of CN106703674B, comprising a ladder for going down, a ladder for going up, a bolt, a ladder connecting device, a delivery device and a foot cover, and the ladder for going up and down can be used in straight ladders and herringbone switch between the ladders; the bolt is installed at the connection between the lower ladder and the upper ladder ...