Hand-held infrared detector with calibration function for spectrum detection

The utility model belongs to the technical field of spectrum detection, and particularly relates to a handheld infrared detector with a calibration function for spectrum detection, which comprises a detector body, and a protection component is mounted on the detector body; the protection assembly comprises a cover plate, a black body, a connecting ring, a protection piece, a rotating rod and a rotating ring, the cover plate is fixedly connected with the detector body, the protection assembly is arranged on the device, a user can shield the front face of the detector body through the protection assembly, the detector body and the black body can be shielded, and the detection efficiency is improved. The detector body and the black body are protected, the instrument is protected and prevented from being damaged, the clamping assembly is additionally arranged on the mechanism, the detector body can be rapidly installed and fixed through the clamping assembly, and therefore installation and fixing can be more conv