Lifting device for lattice beam

The invention relates to the technical field of slope support engineering, in particular to a lattice girder hoisting device which comprises a support, a lifting driver, a gripper mounting seat, a hinge rod, a clamping driver and a pair of clamping mechanisms. The bracket is hinged with the gripper mounting seat; the lifting driver is mounted on the bracket; the lifting driver is hinged to the gripper mounting base and can drive the gripper mounting base to rotate around the axis of the hinge rod. The pair of clamping mechanisms is symmetrically arranged on the two sides of the gripper mounting seat by taking the axis of the lifting driver as a symmetric line; the clamping mechanism is rotationally connected with the gripper mounting seat; the clamping driver is connected with the pair of clamping mechanisms and can drive the pair of clamping mechanisms to rotate in the opposite directions. The clamping driver can drive the pair of clamping mechanisms to rotate in the opposite directions, relative movement of