The invention discloses a device and method suitable for drilled hole form drawing and intra-hole obstacle taking. Through a dip angle
inductor and methods such as infinitesimal iterated integral, the hole form three-dimensional dip angles of all positions of a vertical or inclined hole and three-dimensional coordinates of a hole form center point can be continuously obtained, and a hole form curve is accurately drawn; and through a
visualization module, combined hydraulic cylinders and different types of grabbing sections, the obstacle characteristics such as the number, the size and the shape can be confirmed through a method for analyzing the stress of different obstacles and adjusting the
oil pressure adjustment, and the various types of obstacles such as a large number of
sediment obstacles, a small number of obstacles or a single specific obstacle can be taken out. The device comprises an extra-hole
visualization operation module and an intra-hole obstacle taking module. The extra-hole
visualization operation module comprises an operation table, a lifting control region, an advancing control region, a
hydraulic control region, a camera display screen, a linear display screen and the like. The intra-hole obstacle taking module comprises a base, a dip angle
inductor, a counter-force frame, idler wheels with motors, light emitting cameras, a drive rod, connecting rods, a drive disc, the grabbing sections and the like.