The invention discloses a novel lifting-ring screw. The novel lifting-ring screw comprises a lifting ring and a screw. The novel lifting-ring screw is characterized in that a goose-egg-shaped round hole is arranged at the center of the lifting ring; the screw comprises a screw cap and a screw stud; the screw cap is fixed at the lower end of the lifting ring; the outer wall of the screw stud is provided with threads in a surrounding manner. By the arrangement, the novel lifting-ring screw disclosed by the invention has the advantages that by the structural optimization, the assembling size is more accurate; the assembly is simple, the time and the labor can be saved, the durable effect is achieved and the production cost is lower.
Novel lifting-ring screw
2015-05-20
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |