The invention discloses a trolley pole with two grades of ascending and descending. A bottom pole and a top pole are movably connected, the bottom pole is connected with a lifting mechanism at the top of a vehicle body, and the top pole is connected with a trolley head. The trolley pole is characterized in that the length of the bottom pole is larger than that of the top pole, the bottom pole ascends and descends through the lifting mechanism, and the top pole ascends and descends in the mode of driving a rope by a winch at the vehicle top.
Trolley pole with two grades of ascending and descending
2015-05-13
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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