Drill pipe connector

摘要

An assembly of a drill pipe and a connector (10) for connecting a hose (50) to a side-bore (52) of a the drill pipe (54), the drill pipe (54) having a wall (54a) enclosing a main bore (54b), and the side-bore (52) extending through the wall (54a) from the main bore (54b) to the exterior of the drill pipe (54), the connector (10) comprising a hose connector body (12) which forms a first end of the connector (10) which is adapted to be connected to the hose (50), and a drill pipe connector body (14) which forms a second end of the connector (10) which is connected to the drill pipe (54), the connector (10) having an exterior surface and an interior surface which encloses a bore (20, 22) extending from the first end of the connector (10) to a second end of the connector (10), the drill pipe connector body (12) being provided with at least one bayonet connector formation (44) which extends from the exterior surface of the connector (10) generally radially outwardly relative to the bore (20, 22), the bayonet connector formation (44) extending over less than half of the circumference of the exterior surface of the drill pipe connector body (14), wherein the drill pipe connector body (14) is also provided with means for ensuring a substantially fluid tight seal between the connector (10) and the surface of the drill pipe (54) enclosing the side-bore (52).

主权项

1. A drill pipe and connector assembly for connecting a hose to a side-bore of the drill pipe, the drill pipe having a wall enclosing a main bore, and the side-bore extending through the wall from the main bore to the exterior of the drill pipe, the connector comprising a hose connector body which forms a first end of the connector which is adapted to be connected to the hose, and a drill pipe connector body which forms a second end of the connector which is connected to the drill pipe, the connector having an exterior surface and an interior surface which encloses a bore extending from the first end of the connector to a second end of the connector, the drill pipe connector body being provided with at least one bayonet connector formation which extends from the exterior surface of the drill pipe connector body generally radially outwardly relative to the bore, the bayonet connector formation being rotationally and axially fixed relative to the drill pipe connector body and extending over less than half of the circumference of the exterior surface of the drill pipe connector body, wherein the drill pipe connector body is also provided with a seal which is mounted on the drill pipe connector body for ensuring a substantially fluid tight seal between the connector and the surface of the drill pipe enclosing the side-bore.