What is the working principle of airport cargo lifting platform?

The lifting function is mainly achieved through pressure transmission of hydraulic oil.
Its scissor mechanical structure makes the lift more stable when lifting. The wide working platform and high load-bearing capacity make the high-altitude working range larger and suitable for multiple people to work at the same time. It makes high-altitude operations more efficient and safer.
The pressure oil enters the lower part of the oil cylinder through a series of control valves and pipelines, pushing the oil cylinder upward and driving the platform to lift; when falling, the vane pump stops, the control valve opens the oil drain circuit, and the platform slowly descends under its own weight, and the hydraulic oil in the oil cylinder The oil was squeezed out.