Pipeline settlement detection device

The utility model belongs to pipeline settlement detection equipment, discloses a pipeline settlement detection device, and aims to solve the problems that when a third-party construction unit carries out construction right below a gas pipeline, the gas pipeline near a construction point sinks, the settlement amount of the gas pipeline needs to be monitored in real time, protection measures need to be taken in time, and the pipeline settlement amount is prevented from exceeding the allowable range of 20mm. According to the technical scheme of the utility model, the device comprises a fixed shell, an inner screw tube is rotatably installed on the fixed shell, a screw rod which is in threaded fit with the inner screw tube is arranged in the inner screw tube, and the inner screw tube is provided with a screw rod which is in threaded fit with the inner screw tube. According to the utility model, the structure of the outer pipe and the inner wire is used, the step of adjusting the pull rope is reduced, the install