Composite gas cylinder defect infrared detection device

The invention belongs to the technical field of gas cylinder detection, and particularly relates to a composite gas cylinder defect infrared detection device which comprises a bottom plate and supporting pieces which have a supporting effect on a gas cylinder and input high-temperature steam into the gas cylinder, a first sliding groove is formed in a guide plate, a guide column is slidably installed in the first sliding groove, and guide pieces are installed at the upper end and the lower end of the guide plate correspondingly. An arc-shaped sliding groove is formed in the guide piece, the circle center where the arc-shaped sliding groove is located coincides with the sphere center of the spherical end of the gas cylinder, a pushing plate is fixedly installed on the movable seat, a second sliding groove is formed in the pushing plate, an installation column is installed in the second sliding groove in a sliding mode, and an infrared thermal imager is installed between the installation column and the guide co