Combined rack of pesticide liquid or fertilized liquid spraying machine

The invention discloses a combined rack of a pesticide liquid or fertilized liquid spraying machine, and belongs to agricultural machines. A vertical moving adjusting rack body with an auxiliary rack body is assembled on a main rack body, and the two ends of a bidirectional hydraulic oil cylinder A are hinged to the vertical moving adjusting rack body and the main rack body respectively. An upper left beam, an upper right beam, a pylon and a lower beam are sequentially mounted on the auxiliary rack body in a hinged mode. A spraying rod connecting beam with a spraying rod connecting pin is mounted on the lower beam through a lifting plate, a pressure spring, an upper beam elastic limiting block and a lower plate elastic limiting block are mounted on the auxiliary rack body, and a bidirectional hydraulic oil cylinder B is mounted on the spraying rod connecting beam in a hinged mode. The rack is novel and reasonable in structure and prominent in vibration reducing effect, unit operating is stable in the work process, the damage degree of a machine tool is small, the service life of the machine tool is long, and use and maintenance cost is low.