PROTRUSION-TYPE CONNECTION APPARATUS STEEL PIPE

摘要

PURPOSE: A projection type steel pipe connecting device, which can connects steel pipes which are used as timbering is provided to prevent the deformation and drop of steel pipe by increasing weight strength. CONSTITUTION: A projection type steel pipe connecting device comprises a ring plate(110) and a concavo-convex region(120). The ring plate protects a plurality of steel pipes(200). The concavo-convex region is formed between the contact surface of the ring plate and the steel pipe in one side of the device.