Oxygen bag fastening and pressurizing device

The utility model provides an oxygen bag fastening and pressurizing device. The device comprises a tightening device and an elastic telescopic belt, the clamping device comprises an upper clamping plate and a lower clamping plate; the elastic telescopic belt is fixed between the upper clamping plate and the lower clamping plate; the clamping device further comprises a transmission box and a telescopic rod. When in use, the rocker arm is rocked to contract the telescopic rod and tighten the oxygen bag to realize external pressurization; the elastic telescopic belts on the left and right sides can limit the movement of the oxygen bag in the left-right direction; a fixing base is arranged at the upper end of the upper clamping plate, an oxygen pipe is placed in the fixing base, the length ofthe oxygen pipe is prevented from being insufficient, the trouble of self-making of an oxygen pipe connector is avoided, the oxygen bag fixing device is simple in structure and convenient to operate,an oxygen bag can be effec