Station-service online detector for detecting in-service oil well pipes by portable dipping coil primary means

The invention provides a station-service online detector for detecting in-service oil well pipes by a portable dipping coil primary means, comprising a detector head lifting frame fixedly arranged on a transmission line, wherein a magnetizing coil rolling guide is fixedly arranged on the side of the transmission line, which is arranged above the detector head lifting frame. The portable dipping coil primary means has a structure that an electrical-measuring detector head is arranged on the detector head lifting frame in an up-and-down way, a magnetizing coil can be movably arranged on the magnetizing coil rolling guide along the magnetizing coil rolling guide, the detector head lifting frame and the magnetizing coil provide a passage so that the oil well pipes to be detected are pushed by the transmission line to pass through the passage of the detector head lifting frame and the magnetizing coil. The detector has simple and reasonable structure, can effectively implement the electrical-measuring detecting pr