Fire extinguishing device with pressure sensing starting mechanism for nitrogen making vehicle

The utility model discloses a fire extinguishing device provided with a pressure sensing starting mechanism and used for a nitrogen making vehicle. The fire extinguishing device comprises a conveying pipe, a first pressure pipe, a second pressure pipe, a third pressure pipe, a spray head, a control valve, a pressure sensor, an adjusting valve, a flange plate, a protrusion, an adjusting block, a through hole, a spring, a pressure relief pipe and a pressure relief valve. According to the fire extinguishing device with the pressure sensing starting mechanism for the nitrogen making vehicle, nitrogen is conveyed through the conveying pipe and the pressure pipe, fire extinguishing treatment is carried out, nitrogen can be conveyed from different pipelines according to gas pressure by arranging an adjusting block, and the nitrogen conveying distance can be adjusted by arranging spray heads with different pipe diameters; according to the fire extinguishing device provided with the pressure sensing starting mechanism