Wall-climbing robot

The invention discloses a wall-climbing robot. The wall-climbing robot comprises motors, an outer frame, an inner frame, a parallel moving mechanism capable of moving in the X-Y plane and leg mechanisms capable of conducting leg lifting movement in the Z direction, wherein the inner frame is installed in the outer frame through the parallel moving mechanism, and the bottoms of the outer frame and the inner frame are each provided with four leg mechanisms capable of being sucked to a wall; the four end corners of the outer frame are each provided with one motor; the parallel moving mechanism comprises a mounting plate, a Y-direction sliding mechanism, an X-direction sliding mechanism, bearing pedestal assemblies, a toothed belt and rollers; each bearing pedestal assembly comprises a synchronous pulley, and the toothed belt is wound around all the rollers and the synchronous pulleys to define an I-shaped closed loop. The wall-climbing robot is ingenious in design, easy to control, capable of walking on the wall