Lifting device for automobile maintenance

The invention discloses a lifting device for automobile maintenance. The lifting device comprises a main frame, a power unit, a supporting rod and a connecting rod; the power unit is fixedly connectedto one side of the main frame; the connecting rod is fixedly connected to the bottom end of the main frame; a lifting structure is arranged in the main frame; the lifting structure comprises a cavity, sliding grooves, lifting blocks, engaging blocks and hydraulic telescopic rods; the cavity is formed in the main frame; the sliding grooves are formed in one side of the cavity and in the main frame; and the lifting blocks are movably connected to the interiors of the sliding grooves correspondingly. According to the lifting device disclosed by the invention, the lifting structure is arranged tolift an automobile; the hydraulic telescopic rods can drive the engaging blocks to ascend and descend in the cavity; the hydraulic telescopic rods at the two sides can move synchronously to indirectly drive the lifting blocks