Firefighting pipe detector

The utility model discloses a firefighting pipe detector, including adjusting mechanism and detector mechanism, adjusting mechanism includes gyro wheel and collapsable shaft, gyro wheel and pipe innerwall rolling contact, collapsable shaft connects gyro wheel and detector mechanism, detector mechanism includes first casing, the battery, the aspiration pump, an air inlet pipe, outlet duct and detector subassembly, the detector subassembly includes the second casing, infrared gas analyser, a weighing sensor and a temperature sensor, feel cigarette sensing appearance, intake pipe and outlet ductare connected with the aspiration pump, the aspiration pump is installed on second casing outer wall, the intake pipe is stretched out outside the first casing with the one end of outlet duct, the other end is connected with the detector subassembly, during the detector subassembly is gone into with intraductal gas from the intake pipe pump to the aspiration pump, and pump the gas of postdetection through the outlet duct.