Sample adding gun head loading device

The utility model discloses a sample adding gun head loading device which comprises a loading box, a plurality of loading holes are formed in the loading box, three arc-shaped clamping pieces are arranged in the loading holes, the two ends of the outer sides of the arc-shaped clamping pieces are fixedly connected with first rotating shafts, the first rotating shafts are rotationally connected with movable rods, and the movable rods are fixedly connected with the loading box. The other end of the movable rod is rotatably connected with a second rotating shaft, the other end of the second rotating shaft is fixedly connected with a sliding block, and a plurality of loading holes are formed in the loading box, so that loading operation can be carried out on the sample adding gun heads; meanwhile, an arc-shaped clamping piece, a first spring and a fixing rod are arranged in the device, so that the clamping and positioning effects on the sampling gun head can be realized, the gun head cannot be damaged when moving,