Fish top detection imaging method and device based on mechanical array probe

The invention relates to the technical field of oil well production salvage casing pipes, in particular to a fish top detection imaging method and device based on a mechanical array probes. The imaging device comprises an instrument shell, a circuit cylinder, a motor, a hydraulic pushing device and a mechanical probe part, wherein the circuit cylinder is connected with the motor; the motor is connected with a coupler in the hydraulic pushing device, the hydraulic pushing device is connected with the mechanical probe part, and the mechanical probe part comprises an oil inlet nozzle, pressure guide cavities, sealing cavities, push rods, lower limiting discs, a plurality of pixel probes, displacement sensors and push rods. Pressure guide holes in the pressure guide cavities are uniformly formed in the circumferential direction of concentric circles; A piston is placed in each pressure guide hole, the push rods penetrate through the displacement sensors, the upper ends of the push rods arein contact with the pist