Top pressure type cable clamping device

The utility model discloses a jacking type cable clamping device which comprises a mounting frame, a driving device, a jacking block, a first swing arm and a second swing arm, the mounting frame is provided with a cylinder and two supporting plates, the two supporting plates are fixed to one end of the cylinder in parallel at intervals, the first swing arm and the second swing arm are hinged between the two supporting plates, a first jaw is arranged at one end of the first swing arm, a first jacking part is arranged at the other end of the first swing arm, and a second jaw is arranged at the other end of the second swing arm. A first jaw is arranged at one end of the first swing arm, a second jaw is arranged at one end of the second swing arm, a second jacking part is arranged at the other end of the second swing arm, a jacking block which does reciprocating rectilinear motion along the cylinder is installed in the cylinder, the jacking block is in contact with the first jacking part and the second jacking pa