Sample introduction test tube rack of atomic fluorescence spectrophotometer

The utility model discloses an atomic fluorescence spectrophotometer sample introduction test tube rack, which relates to the technical field of test tube racks, and comprises a device body, the side edge of the upper surface of the device body is hinged with a cover plate, the inner wall of the cover plate is fixedly connected with a rotating shaft I, and the surface of the rotating shaft I is in transmission connection with a transmission belt; an L-shaped fixing frame is fixedly connected to the inner wall of the device body, a second rotating shaft is rotatably connected to the interior of the device body, a gear is fixedly connected to the surface of the second rotating shaft, and a clamping mechanism is arranged on the side face of the L-shaped fixing frame. After an operator puts a test tube in the sample introduction test tube rack of the atomic fluorescence spectrophotometer, a cover plate is closed downwards, a rotating shaft I and the cover plate rotate synchronously, the rotating shaft I drives a