Sleeve connected type water-stop bolt

The utility model discloses a sleeve connected type water-stop bolt. The sleeve connected type water-stop bolt comprises a water-stop screw rod and an auxiliary screw rod, wherein a water-stop sheet is welded at the middle portion of the water-stop screw rod. The sleeve connected type water-stop bolt is characterized in that the sleeve connected type water-stop bolt further comprises a positioning nut and a connecting and positioning sleeve; the positioning nut is sleeve-shaped, the inner diameter of the positioning nut is gradually increased, and one end with small inner diameter sleeves the outer end of the connecting and positioning sleeve; an internal thread is formed on the inner wall of the connecting and positioning sleeve, a positioning point is formed in the middle of the inner wall, and a boss is formed on the outer wall; external threads are formed at the two ends of the water-stop screw rod and the auxiliary screw rod, and the water-stop screw rod and the auxiliary screw rod are connected through the connecting and positioning sleeve. The sleeve connected type water-stop bolt has the beneficial effects that since the connecting and positioning sleeve is separated from the water-stop screw rod and the auxiliary screw rod, after the water-stop bolt is used, the positioning sleeve, the positioning nut and the auxiliary screw rod can be screwed down for reuse from the position of the connecting and positioning sleeve, only the water-stop screw rod is remained in a wall and the construction cost is greatly reduced.