Corrosion field test device for outer anchor head of pre-stressed anchor cable

The utility model belongs to the technical field of pre-stressed anchor cable tests, and discloses a pre-stressed anchor cable outer anchor head corrosion field test device, which comprises a fixed plate and installation experiment steps, four screws are installed on the right side of the fixed plate in an array mode, a movable plate is arranged on the surfaces of the right sides of the four screws, and the movable plate is connected with the fixed plate. Movable plate bolt holes are formed in the surface of the movable plate in an array mode. According to the utility model, the fixed plate, the screw rod, the movable plate, the nut, the movable plate center hole, the fixed plate center hole, the anchor head, the clamping piece, the anchor cable and other structures are matched; the supporting structure can conveniently and quickly move, disassemble and assemble structures such as a fixed plate, a screw rod, a movable plate, a nut, a movable plate center hole, a fixed plate center hole, an anchor head, a clam