The invention relates to a
saliva collector which comprises a bracket. A disposable
saliva collecting mechanism and a liquid receiving
pipe are detachably arranged on the bracket; and the upper end ofthe bracket is connected with a VR
assembly through a longitudinal supporting frame. A smell emitting mechanism and a controller are also arranged on the supporting frame. The
saliva collecting mechanism comprises a buccal unit and an inclined liquid collecting
pipe which are connected with each other; the lower end of the interior of the liquid collecting
pipe is coaxially and rotationally connected with an inner ring; a connecting piece detachably connected with the liquid receiving pipe is arranged at the lower end of the inner ring, and a spiral scraping piece for scraping saliva on the inner wall of the liquid collecting pipe is arranged at the upper end of the inner ring; the liquid receiving pipe is obliquely arranged on the bracket, a rotating
assembly for driving the liquid receiving pipe to rotate axially is arranged on the bracket, and the rotating
assembly is controlled by a controller; the upper end of the liquid collecting pipe is connected with a
liquid injection pipe,an
injection pump assembly for injecting saliva preservation liquid into the
liquid injection pipe is arranged on the bracket, and the
injection pump assembly is controlled by a controller. The detection process is very comfortable, the
saliva collection efficiency is high, saliva residues are reduced, and the sampling success rate is guaranteed.