Fabricated precast concrete inspection well

The utility model discloses an assembly type precast concrete inspection well which comprises a launder, a well chamber and a well shaft. The launder is of a cylindrical reinforced concrete structure, the height of the launder is matched with the outer diameter of a pipeline to be installed, a reinforced concrete base is arranged at the bottom of the launder, and a U-shaped groove with the depth the same as the height of the launder is formed in the middle of the top face of the launder in a drift diameter mode. The well chamber is of a cylindrical reinforced concrete structure and is fixed to the top of the launder. A disc-shaped cover plate of a reinforced concrete structure is arranged on the top face of the well chamber, and a round hole is formed in the cover plate. The shaft is of a cylindrical reinforced concrete structure, and the outer diameter of the shaft is matched with the hole diameter of the circular hole in the cover plate, so that the shaft is fixed to the circular hole in the cover plate. A