Hydraulic impact sampling drilling machine for petroleum geology

The invention discloses a hydraulic impact sampling drilling machine for petroleum geology, which comprises a hydraulic power device, a driving device, a drill rod, a fixed seat, a sampling pipe and a drill bit, the drill rod is connected with the hydraulic power device, the drill rod penetrates through the fixed seat and is fixedly connected with the drill bit, and the sampling pipe is fixedly connected with the drill bit. A plurality of sampling pipes are arranged on the fixed seat in a circumferential array, the sampling pipes can slide along the radial direction of the fixed seat, and hydraulic rods I are arranged between the sampling pipes and the fixed seat. 本发明公开了一种石油地质用液压式冲击取样钻机，包括液压动力设备以及驱动设备、钻杆、固定座、取样管以及钻头，其中，所述钻杆与所述液压动力设备连接，所述钻杆穿过所述固定座所述钻头固定连接，所述固定座上呈圆周整列设置有多个取样管，所述取样管可沿所述固定座径向滑动，所述取样管与所述固定座之间设置有液压杆一。