JPH0249119Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a mooring connection device for mooring a marine structure underwater with a mooring line.

(Prior art) Tension leg platforms, mooring lines (tethers, tendons) used to support marine structures such as guide towers, which are made by joining pipes together with joints, and which use wire cables.
There are some that use resin rope. These underwater mooring connector devices are: (a) those that are connected via hydraulically driven docks;

b A structure in which the mooring line is pulled in using a wire rope as a loop.

c) There are structures in which the connector is inserted through a fitting groove cut out in the horizontal direction.

(Problems to be Solved by the Invention) In such conventional underwater mooring connector devices, first, structures of the type that are connected via hydraulically driven docks are connected via underwater piping and underwater hydraulic equipment when re-driving after being moored underwater for a long time. The reliability of attachment/detachment operation is low.

(b) In addition, when the wire rope has a loop structure and the mooring cable is pulled in, there are problems with the bending strength of the cable during construction and problems with the loop wire becoming tangled during construction.

c Regarding the lateral insertion structure, there were problems such as the need for a dedicated drive device to perform complicated movements for positioning and mooring construction, making the system complicated.

(Means for Solving the Problems) The present invention has devised a mooring connection device shown in FIG. A connector 1 is disposed via 8 and 9, and the connector 1 is configured to be fitted into a socket 2 fixed to an underwater anchor frame 3. Then, a concave groove is formed on the outer periphery of the inner side of the connector 1 or the socket 2, a plurality of through holes 15a are provided on the outer side, and locking pins are inserted into the through holes 15a.
A shift ring 5 is fitted around the locking pin 4 from the outside so as to be slidable up and down, and a groove is formed on the inner periphery of the shift ring so that the mooring cable 10 can be attached to and detached from the socket 2.

(Operation of the invention) In Fig. 1, the connector 1 is positioned on the socket 2, and the shift ring 5 supported by the spring 6 is pushed down using the weight 7 so that the concave groove 17 is aligned with the socket through hole 15a. The pin 4 is made movable into the recessed groove 17 of the shift ring 5.

Next, when the connector 1 is inserted into the socket 2, the locking pin 4 is pushed into the concave groove 17 of the shift ring 5 by the horizontal force generated when the tip of the connector 1 comes into contact with the curved surface of the side end of the locking pin 4. Move to.
After the connector 1 is completely inserted into the socket 2 and the concave groove 15 is aligned with the locking pin position, the weight 7 is
When the shift ring is released (raised), the shift ring is raised by the force of the shift ring's pressing spring 6. At this time, the concave end of the shift ring 5 of the locking pin 4 comes into contact with the curved surface of the side end of the locking pin 4, and the locking pin 4 is moved toward the concave groove 15 of the connector 1 by the horizontal force. When the position of the recessed groove of the shift ring 5 separates from the position of the locking pin 4, the outer end of the locking pin is restrained by the inner circumferential surface of the shift ring 5 so that it cannot move.

As a result, the locking pin 4 is interposed between the sliding surfaces of the connector 1 and the socket 2, and the mooring rope 1
When tension is applied to the shift ring 5, the connector and socket are locked by the shear resistance of the locking pin, and are also locked by the inner circumferential wall of the shift ring 5.

Also, to release connector 1 and socket 2, use weight 7.
The recessed groove of the shift ring 5 locks the locking pin 4.
This is done by pulling up the mooring cable 10 while being pushed down until it matches the position of , thereby moving the locking pin 4 from the concave groove of the connector to the shift ring side.

(Embodiment) FIG. 1 shows an embodiment in which the connector 1 is a male type. The socket 2 is fixed to an anchor frame 3 installed underwater.

The mooring line 10 is attached to a wire socket 8, and the mooring line 10 is locked to a mooring line guide 9 via the wire socket 8. This mooring rope guide is formed of a two-part member, and the upper side thereof is configured so that the mooring rope 10 can move in the horizontal direction. A connector 1 is screwed onto the lower part of the mooring cable guide 9, and the connector 1 is fitted into the socket 2 fixed to the underwater anchor frame 3 described above. A concave groove 15 is formed on the outer periphery of the connector 1, and a locking pin 4 is inserted into the groove and the through hole 15a of the socket 2. The locking pin 4 has sufficient shear strength, and both ends thereof are formed into hemispherical curved surfaces. Further, the concave groove 15 of the connector 1 and the concave groove 17 of the shift ring may be rectangular, but it is preferable that the concave groove 15 of the connector 1 and the concave groove 17 of the shift ring be curved with a radius slightly larger than that of the curved side end of the locking pin 4 so that the load can be received by surface contact. Therefore, in this embodiment, socket 2
A fitting hole 16 into which the shift ring is inserted is bored in the circumferential portion of the shift ring, and a spring 6 is interposed in the fitting hole 16.
The shift ring 5 is fitted above it. A recess groove 17 is provided on the inner periphery of the shift ring 5 to allow the locking pin 4 to escape, and as shown in the left part of the shift ring 5 in FIG. When removing it, by suspending the weight 7 from above and lowering the shift ring 5, the locking pin 4 escapes into the groove 17 provided in the shift ring 5, and the connector 1 is pulled out from the socket 2 and the mooring line 10 is removed together with the connector. Release from lock.

FIG. 2 shows an embodiment in which the connector is of female type.

In this example, the connector 1 is a female type, and a setting jig 11 is installed in advance on the connector. The setting jig 11 is composed of a shift ring lock device 12 and a shift ring lifting device 13. The shift ring lock device 12 is locked to the shift ring 5, and the shift ring lifting device 13 lifts the shift ring 5 into the concave groove of the connector 1. 15 and through hole 1 of socket 2
5a, insert the lock pin 4 into the shift ring 5.
It is configured so that it escapes into a recessed groove 17 provided in the.

According to the present invention, the connector 1 is positioned on the socket, the connector 1 is inserted into the socket 2, and the shift ring lifting device 13 and shift ring locking device 12 are released in this order. Then, a downward force is applied to the shift ring 5 by the force of the spring 6, and when tension is applied to the mooring cable and the connector 1 is pulled up, the connector 1 is automatically locked by the locking pin 4. Conversely, to release the shift ring 5, set the jig 11.
This is done by pulling it up.

(Effects of the invention) a. Since there is no underwater piping or underwater hydraulic system directly in the connector body, the operation reliability is high when restarting after being left unused for a long time.

b. There is less worry about wires getting tangled like in a loop structure.

c. The configuration is relatively simple, as only a drive auxiliary device for simple movement is required.

d. Since a locking pin is used to attach and detach the connector and socket, the mooring cable can be securely moored to the anchor frame and there is no risk of it coming off.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of an embodiment of the device of the present invention, Fig. 2 is a longitudinal sectional view of another embodiment of the device of the invention, and Fig. 3 is a longitudinal sectional view of an embodiment of the device of the present invention.
The figure is a schematic overall view of the marine structure. 1... Connector, 2... Socket, 3... Anchor frame, 4... Locking pin, 5... Shift ring, 6... Spring, 7... Weight, 8...
...Wire socket, 9...Mooring cable guide, 10...
...Mooring cable, 11... Setting jig, 12... Shift ring locking device, 13... Shift ring lifting device, 14... Mooring connection device.

Claims (1)

[Scope of utility model registration request] One end of the mooring cable is fixed to the connector via a member, and the connector is configured to be able to be fitted into a socket fixed to an anchor frame provided underwater, and the outer periphery of the inner side of the connector or the socket. A concave groove is formed on the outer side, a plurality of through holes are provided on the outer side, a locking pin having curved ends on both sides is inserted into the through hole, and a locking pin is inserted between the outer circumference and the inner circumference of the locking pin. A mooring connection device for a marine structure, comprising a shift ring fitted with a recessed groove, supported by a spring, and a mooring line detachably attached to a socket together with a connector.