Lifting column, also known as lifting road pile, anti collision road pile, isolation pile, etc. The lifting column is widely used in many occasions, such as urban transportation, the gates and surroundings of military and important state organs, pedestrian streets, highway toll stations, airports, schools, banks, large clubs, parking lots and so on. Through the restriction of passing vehicles, the traffic order and the safety of main facilities and places are effectively guaranteed. At the same time, it has the advantages of invisibility and beauty.