DEVICE FOR REMOVING RUST ON UNDERWATER PIER COLUMN STEEL BARS AND REPAIRING CONCRETE SURFACES

摘要

Disclosed is a device for removing rust on underwater pier column steel bars and repairing concrete surfaces, the device comprising a suspension bracket (1), a movable sleeve (2), and a control box (3), wherein the suspension bracket (1) is fixedly arranged at the top of a bridge pier (4), and the movable sleeve (2) is formed by splicing, in the circumferential direction, at least two modules of identical shapes, with pressing devices and rubber strips (22) being disposed at the junction; each module comprises a main body (21), the upper part and the lower part of the main body (21) are disposed with convex edges, rubber strips (22) are also arranged at the joints of the convex edges and the bridge pier (4), and the left side and the right side of the main body (21) are each provided with connecting parts (23); vent holes (24) and drain holes (25) are provided on the inner side of the convex edges relative to the movable sleeve (2), and several guniting nozzles (26) and several liquid spraying nozzles (27) are uniformly distributed on the inner side surface of the main body (21) between the upper and lower convex edges; the vent holes (24), the drain holes (25), the guniting nozzles (26), and the liquid spraying nozzles (27) are connected to the control box (3) by virtue of pipelines; and a drying device (28) is also arranged in the main body (21). The repairing device has a high degree of automation and a strong universality, and can be reused, thus effectively reducing the construction cost.