Pile driver for civil engineering

The utility model relates to the technical field of civil engineering. The invention relates to a pile driver for civil engineering. The problem that in the prior art, a pile hammer on a pile driver applies force to the ground unevenly is solved. The device comprises a vehicle body, a first fixing plate, a second fixing plate and a pile hammer, a mounting plate is fixed to the front end of the vehicle body through bolts. A pair of bearing frames is fixed at the front end, back to the vehicle body, of the mounting plate through bolts; a first fixing plate and a second fixing plate are mounted between the two bearing frames through corresponding bolts; the first fixing plate is provided with a sliding groove and connected with a first sliding block in a matched mode. The second fixing plateis provided with a sliding groove which is connected with a second sliding block in a matched mode. A bearing plate is welded between the first sliding block and the second sliding block, under the connecting effect of a conn