A device for non-destructive testing of defects in a pipe

By introducing a pipe wall cleaning frame and an air-coupled ultrasonic probe into the pipeline defect detection device, combined with a gear set and casters, the problem of the impact of dirt on the inner wall of the pipeline on detection is solved, and efficient and accurate pipeline defect detection is achieved.

CN224497961UActive Publication Date: 2026-07-14INNER MONGOLIA SPECIAL INSPECTION & TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA SPECIAL INSPECTION & TESTING CO LTD
Filing Date
2025-09-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing pipeline defect detection devices are prone to false positives and false negatives when dirt and impurities adhere to the inner wall of the pipeline, affecting the accuracy of the detection.

Method used

A non-destructive testing device for pipeline defects was designed. It adopts a pipe wall cleaning frame and an air-coupled ultrasonic probe. The defect detection is performed by a servo motor driving the transmission shaft to rotate at low speed, and the rotating frame is driven to rotate at high speed by a gear set to drive the pipe wall cleaning frame to scrape off dirt. It is combined with casters and electric push rods to adapt to pipes of different diameters.

Benefits of technology

This technology enables the effective cleaning of dirt from the inner wall of pipes during the testing process, improving the accuracy and applicability of the testing and avoiding false positives and false negatives.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pipeline defect's nondestructive testing device relates to pipeline detection technical field, this pipeline defect's nondestructive testing device, including the vehicle body still include: set up in the surface of the vehicle body all around fixedly set up with the first electric push rod, the output of first electric push is fixedly set up with universal wheel, the middle part fixedly set up with lifting plate subassembly of the top surface of vehicle body, the top surface fixed mounting of lifting plate subassembly has servo motor. The utility model discloses the setting of pipe wall cleaning frame and air coupling ultrasonic probe, when the vehicle body advances in the inside of pipeline, servo motor drives transmission shaft low -speed rotation, makes air coupling ultrasonic probe follow low -speed rotation and carries out the defect detection to the inner wall of pipeline, and then drives gear group rotation and variable speed, makes the rotating frame follow high -speed rotation, drives pipe wall cleaning frame and scrape off and clean the dirt attached to the inner wall of pipeline, avoids the inner wall of pipeline attached impurity and influences the detection result, causes the wrong detection, the missed detection, makes the detection more accurate.
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