Gas charging device of fire extinguisher

The invention discloses a gas charging device for a fire extinguisher and belongs to the technical field of security and protection equipment. The gas charging device comprises a rack, a fire extinguisher positioning fixture, a gas charging head and a chuck mechanism. The fire extinguisher positioning fixture is arranged on the top of the rack. The gas charging head is supported by the top of therack through the chuck mechanism and is located in front of the fire extinguisher positioning fixture. The top of the rack is further provided with a gas charging switch and an adapter. The gas inletend of the gas charging switch communicates with the gas outlet end of the adapter through a pipeline. The gas outlet end of the gas charging switch communicates with the gas charging head through apipeline. The gas charging device is simple in structure and convenient to use, an upper cover can be automatically opened or closed, and the convenience of operation is improved; and moreover, duringgas charging, the fire extin