Self-locking type efficient transmission lifting platform

The utility model relates to the technical field of lifting equipment, in particular to a self-locking type efficient transmission lifting platform which is characterized in that when the lifting platform needs to be lifted, a hydraulic rod stretches, a supporting rod is stressed up and down, a pulley is driven to slide outwards, a screw presses a self-locking device to move outwards, and after the hydraulic rod completely stretches, the screw slides to one side of a sliding groove; the self-locking device automatically pops up to lock the lifting platform without the pressure of the screw rod, when the lifting platform needs to be retracted, the handle is pulled down, the buckle is rotated to enable the buckle to be clamped with the handle, an unlocking state is completed, the problem that the lifting platform does not slide in the working process can be effectively solved, and therefore potential safety hazards of workers in the working process are improved. 本实用新型涉及升降设备技术领域，具体涉及一种自锁式高效传动升降台，所述当升降台需要升起时，液压杆伸