Low-interference automatic detection device and detection method for defects and conditions of drainage pipelines

A low-interference automatic detection device for defects and conditions of drainage pipelines, comprising an inspection detection system and two fixed detection systems, wherein the fixed detection systems each comprises a semi-arc-shaped pipe wall fixing structure, a fixed detection transmission control system, and a plurality of first laser probes;

• the fixed detection transmission control system is installed on the pipe wall fixing structure;
• the plurality of first laser probes are respectively installed at different positions of the pipe wall fixing structure, and the plurality of first laser probes are connected to the fixed detection transmission control system;
• the inspection detection system comprises an inspection track and an inspection robot, wherein the inspection robot comprises an inspection robot carrier, a robot controller, a plurality of second laser probes, and a cleaning device;
• the robot controller is respectively connected to the inspection robot carrier, the plurality of second laser probes, and the cleaning device through an integrated cable;
• the plurality of second laser probes are respectively installed on a top and bottom of the inspection robot carrier;
• and the cleaning device is installed on the inspection robot carrier;
• the inspection track is configured to pass through a to-be-detected drainage pipeline during detection, the two fixed detection systems are respectively disposed at two ends of the inspection track and located on an upper surface of the inspection track, and the inspection robot carrier is configured to move along a lower surface of the inspection track in a suspended manner;
• the two ends of the inspection track are bent upward to form two U-shaped parts, and upper portions of the two U-shaped parts are respectively used as a head end and tail end of the inspection track;
• the head end and tail end of the inspection track are each provided with an inspection track locator;
• the inspection robot carrier is configured to locate a docking position and a traveling direction on the inspection track through the inspection track locator;
• a width of each of the head end and tail end of the inspection track is set to increase from small to large, allowing for smooth docking of the inspection robot carrier onto the inspection track;
• and
• during detection, the inspection track is configured to be fixed to both the ground and a top of the to-be-detected drainage pipeline respectively through an inspection track top fixing rod and an inspection track bottom fixing rod.