Lifting device for electromechanical installation

The utility model relates to the technical field of mechanical and electrical installation, in particular to a lifting device for mechanical and electrical installation, which is characterized by comprising a lifting platform, a base and a hand-operated shear type lifting mechanism arranged between the lifting platform and the base, the lifting platform is provided with a sliding plate and a clamping plate, the sliding plate is movably arranged on the lifting platform, and the clamping plate is arranged on the base. The clamping plate is rotationally arranged on the bottom face of the sliding plate and connected with a torsional spring, the base is provided with a positioning column extending upwards, clamping blocks distributed up and down at intervals are constructed on the side wall of one side of the positioning column, and the sliding plate controls the clamping plate to make movable contact with the multiple clamping blocks in the ascending process and controls the clamping plate to avoid the clamping b