Continuity of operation's steel hinge line stretch -draw frock

The utility model provides a continuity of operation's steel strand stretching frock, includes support frame (2) and connects in stressing jack (1) of support frame (2) rear end, is fixed with afterwards anchor ring (3) and preceding anchor ring (4) respectively at the rear portion and the front end of support frame, the position of wearing to establish steel strand wires (10) in the front in the anchor ring sets up automatic locking mechanism, automatic locking mechanism including pressing from both sides in return stroke clamping piece (7) of steel strand wires both sides, set up in back spring (6) that compress tightly the return stroke clamping piece of preceding anchor ring stretch -draw direction one side, the anchor ring top spin is equipped with adjusting bolt (5) in the front, is equipped with clamp plate (9) at the adjusting bolt front end to the cover is equipped with guide casing pipe (8) between clamp plate and preceding anchor ring, and back spring establishes in guide casing pipe's the outside,