Sling device with bulged-edge columnar part

The utility model relates to a sling device with a bulged-edge columnar part, which solves the problem that labor cooperation or rope binding can cause safety accidents such as injury of people. The sling device comprises a lifting ring, a chain, a baffle, a straight-arm lifting hook and two bent-arm lifting hooks; the two bent-arm lifting hooks are fixedly connected to two sides of one end of the baffle; the straight-arm lifting hook is connected between the two bent-arm lifting hooks by hinge shafts; the other end of the baffle and the straight-arm lifting hook are connected with the lifting ring by the chain; the internal hook surfaces of the straight-arm lifting hook and the bent-arm lifting hooks and hook bodies form included angles of 75-80 degrees; contact surfaces of the hook bodies of the straight-arm lifting hook and the bent-arm lifting hooks and the columnar part of the part form included angles of 5-10 degrees together with the hook bodies. The sling device with the bulged-edge columnar part, which is provided by the utility model, is convenient to operate, simple in structure, safe in automatic locking, low in manufacturing cost, high in efficiency, and suitable for parts with certain appearance size and weight.