Sample introduction device of gas chromatograph

• Main Authors: WANG SHOUBIN, CAO HUIMIN
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses a sampling device of a gas chromatograph, and mainly relates to the field of gas chromatographs. Comprising a fixed frame arranged at the top of the chromatograph, a sample inlet is formed in the top of the chromatograph, a limiting frame used in cooperation with the sample inlet is arranged at the bottom of the fixed frame, a rotating frame is rotationally connected to the interior of the fixed frame, a plurality of carrying blocks are arranged on the rotating frame and slidably connected with the rotating frame in the vertical direction, and reset springs are arranged between the carrying blocks and the rotating frame. An insertion hole is formed in the carrier block, a sample injection needle cylinder is arranged in the insertion hole, a piston rod is slidably connected in the sample injection needle cylinder, a pressing frame matched with the sample injection needle cylinder for use is slidably connected to the fixed frame in the vertical direction, and a pressing rod matched w