Soil sampling device for highway engineering

The utility model discloses a soil sampling device for highway engineering. The soil sampling device comprises a rack, a controller, a pressing plate, a bottom plate, a sampler, a damping device, a baffle, a drilling motor, a sample box, a telescopic rod and a pressing rod, wheels are installed at the bottom of the rack. The first air cylinder and the second air cylinder are fixed to the top of the interior of the rack through a fixing frame. An alarm is mounted at the top of the outer side of the rack; telescopic rods are mounted at the output ends of the first air cylinder and the second aircylinder; a pressing plate is mounted on the telescopic rod through a screw; pressing rods are installed on the two sides of the bottom of the pressing plate, compression springs are installed on thepressing rods, a drilling motor is installed in the center of the pressing plate, a spiral drill rod is installed at the output end of the drilling motor, a spiral drill bit is arranged at the bottomof the spiral drill rod, a