Special double-interface pressure-reducing pressure flowmeter for transferring oxygen bottle

The utility model discloses a special double-interface pressure-reducing pressure flowmeter for transferring an oxygen bottle, and belongs to the technical field of oxygen pressure flowmeters. The utility model discloses a special double-interface pressure-reducing pressure flowmeter for transferring an oxygen bottle. The special double-interface pressure-reducing pressure flowmeter comprises a pressure flowmeter body, an oxygen bottle joint, a regulating valve joint, a pressure gauge connecting pipe, a pressure release valve connecting pipe and a three-way joint, the three-way joint comprises a first joint, a second joint and a third joint; the first joint is communicated with the pressure flowmeter body; the second joint is a respirator joint; the third joint is connected with an oxygen joint, an oxygen flowmeter and a flow regulating switch; the oxygen bottle connector, the oxygen pressure gauge connecting pipe, the pressure reduction regulating valve, the safety pressure release valve, the three-way conne