High performance liquid chromatograph with clamping mechanism

The utility model belongs to the technical field of liquid chromatographs, particularly relates to a high performance liquid chromatograph with a clamping mechanism, and provides the following scheme aiming at the problems that a detection bottle cannot be fixed and is easy to topple over and knock over a solution after being accidentally touched when the conventional liquid chromatograph is used for detecting. A placement groove is formed in the top of the machine shell, a sliding groove is formed in the inner wall of the bottom of the placement groove, two sliding blocks are slidably connected into the sliding groove, clamping plates are fixedly connected to the tops of the two sliding blocks, a detection bottle is placed in the placement groove, pull rods are hinged to the two sliding blocks, and one ends of the two pull rods are hinged to the same cam; the bottom of the cam is fixedly connected with a first rolling shaft, the bottom end of the first rolling shaft is fixedly connected with a first bevel ge