Connector
A connector for use as a bend stiffener in a marine application comprising male and female connectors respectively provided with a downwardly dependent frusto-conical extension and a cylindrical extension. The female connector includes a hollow cylindrical body defining a through bore and surrounded by a spring loaded sleeve movable axially with respect to the body. Spring loaded latches extend through respective apertures to coact with grooves in the body. Hydraulic rams are disposed to push the sleeve against the spring loading which brings an internally wider diameter position of the sleeve adjacent locking balls extending through but retained by stepped apertures. The latches, rams and locking balls coact to lock the male and female connectors together or to enable their release and thus the locking together or release from that locking together of connected extensions. This in turn facilitates the operation of the connector in hazardous conditions.
1. A connector comprising:
a connector body;
locking means comprising at least one locking device including a rounded surface and having operative and inoperative positions in relation to the connector body;
said connector body having at least one accommodating aperture in a connector body wall adapted to receive the at least one locking device rounded surface;
a sleeve mounted coaxially relative to the connector body and axially movable in relation to the connector body;
said sleeve selectively engageable with the locking means and having a permissive position in which the locking means moves between operative and inoperative positions and a preventative position in which the locking means is prevented from moving between operative and inoperative positions;
a spring mechanism connected with the sleeve and for biasing the sleeve toward the preventative position;
a retainer comprised of at least one latch couplable between the connector body and sleeve and for retaining the sleeve in the permissive position; and
an actuator mechanism coupled with said sleeve for moving the sleeve between permissive and preventative positions by pushing the sleeve against the spring mechanism biasing, wherein the sleeve is lockable in the preventative position by the retainer and wherein the retainer is moved to an unlocked position to permit the sleeve to move from the permissive position to the preventative position.
2. A connector as claimed in claim 1 wherein the retainer engages the sleeve to lock the sleeve in the permissive position and wherein the retainer is disengaged from the sleeve to permit the sleeve to move from the permissive position to the preventative position.
3. A connector as claimed in claim 1 in which the locking device comprises one or more locking balls.
4. A connector as claimed in claim 1 , in which the actuator mechanism comprises at least one pressure fluid operable actuator.
5. A connector as claimed in claim 4 , in which the or each pressure fluid operable actuator is pneumatic.
6. A connector as claimed in claim 4 , in which the or each pressure fluid operable actuator is hydraulic.
7. A connector as claimed in claim 1 , in which the retainer comprises one or more latches.
8. A connector as claimed in claim 1 , in which the locking device comprises one or more locking balls, and in which the one or more balls extend through the aperture in one connector and into an aperture in another connector.
9. A connector as claimed in claim 1 , in which the aperture is a groove.
10. A connector as claimed in claim 1 , in which the aperture is a series of part spherical recesses.