Automatic fire extinguishing device for high-altitude simulation test of solid rocket engine

The invention belongs to the field of solid rocket engine high-altitude simulation tests, and particularly relates to an automatic fire extinguishing device for a solid rocket engine high-altitude simulation test. Comprising a hydraulic trolley, a high-pressure hose, a spraying pipeline, a nozzle, a spraying cover, a track, a hydraulic pump station, a control system, a control valve group, a driving valve group, a carbon dioxide bottle group, a bottle group bracket, a collecting pipe and a driving pipeline. The carbon dioxide bottle group is combined with the collecting pipe through the bottle group support, the control valve group and the driving valve group are matched through the driving pipeline to output carbon dioxide gas, and the driving pipeline and the valve group are fixed through the fixing support and connected to the spraying pipeline, the nozzle and the spraying cover through the high-pressure hose. The hydraulic pump station is connected with the hydraulic trolley through a high-pressure oil pi