Flaw detector convenient to take up

The utility model relates to the technical field of flaw detectors, and discloses a flaw detector convenient to take up, which comprises a case, the side wall of the case is provided with a wire inlet hole, a storage wire penetrates through the wire inlet hole, the inner wall of the case is connected with a sliding block in a sliding manner, the outer wall of the sliding block is rotatably connected with a rotating rod, and the rotating rod is connected with the wire inlet hole in a sliding manner. The outer wall of the rotating rod is fixedly sleeved with a take-up reel, the end of the rotating rod is fixedly connected with a rotating disc, a limiting mechanism is arranged on the outer wall of the sliding block, an adjusting mechanism is arranged on the inner wall of the machine box, the outer wall of the sliding block is fixedly connected with one end of a bearing spring, and the other end of the bearing spring is fixedly connected with the inner wall of the machine box. According to the flaw detector conve