Sampling device for highway construction

The utility model discloses a sampling device for highway construction. Bottom plate, the right end of the top of the bottom plate is fixedly connected with a battery box; first electric telescopic rods are fixedly connected to the top of the bottom plate and located on the periphery of the left end of the battery box. A connecting block is fixedly connected to the top of the first electric telescopic rod, a box body is fixedly connected to the connecting block, second electric telescopic rods are fixedly connected to the left end and the right end of the top of an inner cavity of the box body, sliding grooves are formed in the lower portions of the left side and the right side of the inner cavity of the box body, and a movable plate is slidably connected to the inner cavity of the box body through the sliding grooves. Through mutual cooperation of the box body, the pedal, the connecting block, the first electric telescopic rod, the threaded drill bit, the first motor, the second electric telescopic rod, the