| 摘要 |
The present invention relates to a pipe coupling configured by a connection pipe (10) in which a predetermined length is formed to have an internal diameter smaller than an external diameter of a pipe (50) to be connected, a bent portion (11) having an internal diameter greater than the external diameter of the pipe (50) to be connected is formed at both sides to have the center of the predetermined length to be bent toward the radial direction, and the end of the bent portion (11) at both sides has a predetermined width extended toward the outside and the radial direction to form an inclined sealing surface (12); a ring-shaped packing (20) in which one side surface is in close contact with each sealing surface (12) in both end portions of the connection pipe (10), and which has an internal diameter smaller than the external diameter of the pipe (50); a cap (30) disposed to be in close contact with the side surface opposite from the surface in close contact with the sealing surface (12) of the packing (20) to surround predetermined width of the packing (20) from the outside, and having a penetration hole (31) greater than the external diameter of the pipe (50) at the center; and a fastening clamp (40) surrounding outer peripheral end portions of the cap (30) and the sealing surface (12) at the same time and enabling the packing (20) and the cap (30) to be in close contact with the sealing surface (12) by fastening force of a bolt (42) to prevent the packing (20) and the cap (30) from being detached from the sealing surface (12). |
