Surface rock sampling device for geological exploration

The invention belongs to the technical field of rock sampling, and particularly relates to a geological prospecting surface rock sampling device which comprises a base, a controller is arranged on one side of the base, a transmission mechanism is arranged at the top of the base, and an excavating mechanism is arranged at the output end of the transmission mechanism; the excavating mechanism comprises a rotating disc, the middle shaft of the rotating disc is fixedly connected with the output end of the transmission mechanism, multiple sets of tooth grooves are evenly formed in the outer surface of the rotating disc in an array mode, and displacement sensors are arranged at the ends, located on the outer surface of the rotating disc, of the tooth grooves; according to the device, long groove type sampling of rock samples is achieved, the versatility of rock sampling is improved, meanwhile, the problems that errors occur in a sampling area, the device stability and trafficability are poor, and the operation diff