Synovial membrane wire -cutting formula weak soil geotome

Synovial membrane wire -cutting formula weak soil geotome, sampling tube fix the below at the back seat, this sampling tube lower extreme is fixed with pipe shoe, be equipped with the piston that is used for releasing the soil sample in this sampling tube, its characterized in that: there is the pipe shoe cavity pipe shoe upper end, presets film, snap ring and cutting ring in this pipe shoe cavity, the back seat has the back seat cavity, has vent valve and steel wire distributor in this back seat cavity, distribute in the pipe wall of sampling tube has four air vents symmetrically, the air vent intercommunication back seat cavity and pipe shoe cavity, be equipped with the steel wire line in one of them air vent, the upper end of this steel wire line is fixed on the steel wire distributor,the sampling tube forms the inseam with the pipe shoe junction at the inner wall, cutting ring and piston are connected respectively to the film both ends. The utility model discloses reduce sample side friction resistance an