Liftable supporting mechanism of electrified crossing frame

The invention relates to the technical field of electrical equipment auxiliary tools, and discloses a liftable supporting mechanism for a live crossing frame, the liftable supporting mechanism comprises a bottom plate, a top plate and a driving assembly, the driving assembly comprises a linear guide rail, a sliding block and a hydraulic cylinder, the linear guide rail is arranged at the top of the bottom plate, the sliding block is slidably connected in the linear guide rail, and the hydraulic cylinder is arranged in the sliding block. A telescopic mechanism is installed at the bottom of the top plate, the bottom of the telescopic mechanism is connected with the sliding block, a supporting block is fixedly connected to the side face of the bottom plate, the hydraulic cylinder is fixedly installed at the top of the supporting block, and the output end of the hydraulic cylinder is connected with the sliding block. According to the device, high-load movement caused by back-and-forth climbing of an operator can b