Virus sampling tube convenient for opening and closing tube cap

The utility model discloses a virus sampling tube convenient for opening and closing a tube cap, which comprises a tube body, an adjusting groove is arranged around the outer edge of the tube body close to the bottom, an adjusting column is arranged at the top end in the adjusting groove, a sleeve rod is movably sleeved on the surface of the adjusting column, an extension rod is arranged on the inner side of the sleeve rod, and the extension rod is connected with the tube cap. A pipe cap is arranged at the top of the pipe body, inserting rods are arranged on the two sides of the bottom of the pipe cap, and springs are arranged on the outer side surfaces of the inserting rods. According to the virus sampling tube with the tube cap convenient to open and close, in the daily use process, when the cap needs to be opened, a clamping block can be manually pressed to compress a spring for real-time shrinkage, so that the clamping block can be shrunk to the inner side of a slot, friction force is reduced through roll