Connecting device of tube push bench shell

The utility model relates to the technical field of pipe jacking machines, in particular to a connecting device of a pipe jacking machine shell, which comprises a pipe jacking machine front shell and a pipe jacking machine rear shell, and is characterized by further comprising a groove plate, the pipe jacking machine front shell is provided with the groove plate, the groove plate is provided with a groove in the axial direction, and the groove plate is provided with a through hole in the radial direction; the rear shell of the tube push bench is provided with the insertion plate, the insertion plate is axially provided with a convex structure which is matched with the groove of the groove plate, and the convex structure is radially provided with a through hole; the connecting pin penetrates through the through hole of the groove plate and the through hole of the inserting plate, so that the front shell of the pipe jacking machine is connected with the rear shell of the pipe jacking machine, and the pipe jacki