Synchronous triggering and oxygen-saving technical device

The utility model provides a synchronous triggering and oxygen-saving technical device used on a portable medical oxygen generating machine. The synchronous triggering and oxygen-saving technical device comprises an oxygen storage tank, an oxygen output port and an oxygen inhalation pipe connected with the oxygen output port, wherein a solenoid valve is connected between the oxygen storage tank and the oxygen output port, the oxygen storage tank is connected to an input-end pipeline of the solenoid valve, an output-end pipeline is connected with the oxygen inhalation pipe and a signal input end of a pressure sensor, and a control end is connected with a self-adaptive trigger; and a signal output end of the pressure sensor is connected with the self-adaptive trigger. The synchronous triggering and oxygen-saving technical device has the advantages that the triggering response flexibility is improved, false triggering is avoided effectively, and the effective oxygen utilizing rate is increased and the oxygen consumption is reduced on the basis that the oxygen flow can be guaranteed.