Sampling mechanism for nucleic acid detection and extraction

The utility model discloses a sampling mechanism for nucleic acid detection and extraction, which relates to the technical field of detection and sampling and comprises a protection mechanism, the protection mechanism comprises a protection base, and a transfer baffle is arranged at the top end of the protection base; a mobile control mechanism is arranged at the rear end of the protection mechanism; the moving control mechanism comprises a moving control bottom plate arranged at the rear end of the protection base, a bevel gear is arranged at the top end of the moving control bottom plate, and moving grooves are formed in the two sides of the bevel gear. A sampling pipe is arranged at the rear end of the movement control mechanism; meanwhile, when the cotton swab sampling device is used, sampling can be directly carried out through the cotton swab sampling port by adopting a mode that the sampling tube cover does not need to be opened in a conventional state, so that the problems that in the prior art, inter