Portable ultrasonic gas flowmeter

The utility model discloses a portable ultrasonic gas flow meter which comprises an ultrasonic flow meter body, a portable structure is arranged on the outer side of the ultrasonic flow meter body, one end of the ultrasonic flow meter body penetrates through the portable structure and is electrically connected with a display structure, and the portable structure comprises an outer cylinder, a sheath, an elastic band and a connecting band. The outer cylinder is of a hollow structure, the middle of the ultrasonic flowmeter body is arranged in the outer cylinder, a groove is formed in the outer cylinder around the hollow structure, an elastic belt is arranged in the groove, the outer cylinder and the outer protective sleeve are combined and connected from the inside, at the moment, a user can penetrate the palm through the protective sleeve to make contact with the bottom of the outer cylinder, and then the device is lifted. The elastic band is stretched under the influence of force at the two ends, then the pro