Sample fixing device for direct-reading spectrometer

The sample fixing device for the direct-reading spectrometer comprises a spectrometer body and a test board, an installation cylinder is arranged in the spectrometer body, an abutting mechanism used for abutting against an object is arranged on the side wall of the installation cylinder, the abutting mechanism comprises a movable plate arranged in the installation cylinder, and the movable plate is arranged on the side wall of the installation cylinder. A mounting plate is connected to the side wall of the movable plate through a connecting mechanism, an electric push rod is arranged on the mounting plate, a telescopic rod is fixedly connected to the lower end of the electric push rod, and a spring is arranged on the side wall of the telescopic rod. According to the utility model, the abutting mechanism is arranged, an object is placed on the test bench, the object can be fixed and unfixed by starting the electric push rod, the object does not need to be fixed manually, and thus the practicability of the devi