Fixing device for spraying performance of fire extinguisher

The utility model discloses a fire extinguisher injection performance fixing device which comprises a fixing bottom plate, a placing groove is formed in the upper surface of the fixing bottom plate, a mounting assembly is arranged on the upper surface of a second supporting rod, and a first supporting rod is arranged on the upper surface of the second supporting rod through the mounting assembly. According to the device, through the design that the adjusting rod is fixedly connected with the second supporting rods, when the first bevel gear rotates, the two sets of second bevel gears can drive the two sets of lead screws to rotate, and the two sets of lead screws can rotate; when a lead screw rotates, an adjusting rod can be driven to move on a rotating groove through a threaded groove, a second supporting rod can drive two sets of first fixing clamps and two sets of second fixing clamps to move oppositely, and a fire extinguisher on a containing groove can be fixedly clamped by rotating a rotating plate; and