Full hydraulic pressure drive, convenient operation and reliable operation. The lip plate connected to the platform with the long shaft, high strength, good reliability. Imported seals, hydraulic system has excellent sealing performance. Imported whole module type hydraulic station, good sealing, long service life. High strength "U" shaped beam design to ensure its high load operation for a long time no deformation. Use antiskid plate, make the platform has good anti-skid performance. On both sides of the fortification pinches skirt plate, to prevent accidental damage toes into the platform. With maintenance personnel into the internal maintenance vehicle bridge security support bar.