Crane capable of conveniently replacing oil pipe

The utility model relates to the technical field of crane maintenance and discloses a crane convenient to replace an oil pipe, which comprises a bottom plate, a hydraulic rod is fixedly connected to the middle of the left side of the upper end face of the bottom plate, a mounting plate is fixedly connected to the right side of the outer surface of the hydraulic rod, and the right end face of the mounting plate is in threaded connection with a nut. A connecting port is fixedly connected to the middle of the right side of the upper end face of the bottom plate, electric telescopic rods are rotatably connected to the four corners of the lower end face of the bottom plate, a conveying pump is fixedly connected to the middle of the right side of the lower end face of the bottom plate, a connecting pipe is fixedly connected to the lower end face of the bottom plate, and an oil tank is fixedly connected to the lower end face of the bottom plate; through cooperation of the bottom plate, the hydraulic rod, the mountin