JPS62234794A - Recovery device of submerged object - Google Patents

Abstract

PURPOSE:To collect a submerged object easily by providing a male type fitting member to be fitted into an unmanned submarine tool, rope storing cylinders, an anchoring metal, a buoy and a high tension rope, on a recovery device for collecting the object sunk to the water bottom by means of the unmanned submarine tool. CONSTITUTION:An unmanned submarine tool 9 with a recovery device 1 previously mounted thereon is submerged to the sea bottom B where a submerged object 14 is present in order to collect the submerged object 14 from the sea bottom B by suing the recovery device 1. Then, the recovery device 1 is gradually advanced in order to insert an anchoring metal 5 to a hole 14A of the submerged object 14. Next, with moving the recovery device 1 backward, first, and anchoring metal 5 is detached for anchoring to the hole 14A, then the recovery device 1 is moved further backward in order to break up its whole body for separation, so that buoys 8A, 8B float while drawing a high tension rope 7 from rope storing cylinders 2A, 2B. Then, when said buoys 8A, 8B are pulled up onto a working boat 11 in order to pull up the high tension rope 7 by a winch 12, the submerged object 14 is collected onto the working boat 11 in the condition with the anchoring metal 5 locked to the submerged object 14.

Description

[Detailed Description of the Invention] [Technical Features of the Invention] The present invention provides an underwater object recovery device, in particular, an easy-to-operate device for recovering objects sunk to the bottom of water using a small and lightweight unmanned underwater vehicle. This invention relates to an underwater object recovery device.

[Prior art]

When recovering an object that has sunk to the seabed, conventionally, as shown in FIG. The underwater object 14 was recovered by being secured by a machine to a hole 14A of the underwater object 14 on the seabed B or to an appropriate location on a hanging fitting, and then hoisted by a winch 12 on a work boat 11.

However, the recovery method using the diper 15 has a problem in that the deeper the water gets, especially as the water gets deeper than 40 m to 50 m, the effective diving time is severely restricted and the recovery work becomes difficult.

Furthermore, even if a submersible with a manipulator is used instead of a diver, the submersible itself will be large and very expensive due to the complicated underwater work and the need to operate the heavy recovery lifting rope 13. There was a problem of not getting any.

[Purpose of the invention]

In order to solve these conventional problems, it is an object of the present invention to provide a lightweight and convenient underwater object recovery device that can be easily operated even by a small, lightweight, and relatively low-cost unmanned underwater vehicle. That is.

[Structure of the invention]

In order to achieve the above object, the underwater object recovery device of the present invention includes a rope storage tube that can be attached to and detached from a female fitting member of an unmanned underwater vehicle via a male fitting member, and a rope storage tube that can be attached and detached from the rope storage tube. a possible anchor hardware; a floating body that can be attached to the rope storage tube;
Usually, the rope is housed in the rope storage tube and consists of a high-tensile rope with one end attached to the anchor hardware and the other end attached to the floating body.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings, in which the same parts as in the conventional example shown in FIG. 1O are designated by the same part numbers.

FIG. 3 is an overall layout diagram showing a state in which an underwater object recovery device according to the present invention is attached to an unmanned underwater vehicle to recover an underwater object. It is detachably attached to the female fitting member 9A. The unmanned underwater vehicle 9 is connected to the work boat 11 by a tether cable 10.
being lowered into the sea.

The recovery device 1 has a structure as shown in FIG. 1, and its main parts are composed of a cylindrical anchor 5, a high-tension row 17, and two floating balls 8A and 8B. High tension row 17
is preferably a lightweight rope made of aromatic polyamide, for example, and as shown in FIG. 4, one end of the rope is attached to the anchor hardware 5, and the other end is attached to the two floating balls 8A, 8B.

As shown in FIG. 2, the anchor hardware 5 is detachably attached to a front small tube 3 provided on the circumferential surface of the rope storage tube 2, and is also placed opposite the front small tube 3 to store ropes. A female fitting member 6 is detachably attached to a rear small tube 4 provided in the tube 2. In addition, the floating balls 8A and 8B are usually stored in the rope storage tube 2.
are attached to the ends of each. Furthermore, the high-tensile rope 7 is normally stored in the rope storage tube 2 in a half-wound state of 8 or the like, and is easily paid out when pulled from the end attached to the anchor hardware 5. There is.

As shown in FIG. 2, the rope storage tube 2 has a two-part structure that can be divided into two parts 2A and 2B.
7 and floating balls 8A, 8B can be easily stored or pulled out. In addition, parts 2A and 2B of the rope storage tube, which can be divided into two parts in order to recover the rope storage tube 2 and the female fitting member 6, are connected to the high tension row 17 via the rope 7B, and Two divided parts 6A and 6B constituting the member 6 are also connected to the rope storage tube 2B via a rope 7C. It goes without saying that the front small tube 3 and the rear small tube 4 are also divided into two parts 3A, 3B and 4A, 4B, similar to the rope storage tube 2. However, the rope storage tube 2 may have a structure that can be opened and closed from the hinge 17, as shown in FIG. 7, if desired.

In the embodiment shown in FIG. 1, an unlock piece 51 is attached to the anchor hardware 5 near its rear end, and after the unmanned underwater vehicle 9 inserts the anchor hardware 5 into the hole 14A of the underwater object 14, By hooking the unlock piece 51 on the edge of the hole 14A and pulling it, the anchor hardware 5 can be removed from the rope storage tube 2. In this case, if the degree of adhesion between the male fitting member 6 and the rope storage tube 2 is made stronger than the degree of adhesion between the anchor hardware 5 and the rope storage tube 2, the anchor hardware 5
They will not come off at the same time when they are removed. Further, after the anchor hardware 5 is detached from the rope storage tube 2 and anchored in the hole 14A, the anchor hardware 5 fixes the rope storage tube 2 to the underwater object 14 via the high tension row 17 and the rope 7B. In this state, when the unmanned underwater vehicle 9 pulls with a stronger force, the male fitting member 6 separates from the rope storage tube 2. In this case, as shown in FIG.
If the male fitting member 6 is provided with a V-shaped notch 62 and divided into two parts when removed from the rope storage tube 2, the male fitting member 6 can be separated from the female fitting member 9A by m and tii. In this way, the unmanned underwater vehicle 9 can be equipped with an extremely flexible female fitting member 9A whose only movable parts are a lock pin 9B and a lock spring 9C as shown in FIG. The user can detach from the recovery device 1 only by moving forward and backward or the like. In addition, if the male fitting member 6 is wrapped with, for example, a rubber band around the lock groove 61,
When the rope storage cylinder 2 is detached from the male fitting member 6, the notch 62 is closed by its own blade so that both end surfaces meet, and can be easily released from the lock pin 9B of the female fitting member 9A. At this time, it is desirable that the male fitting members 6A and 6B be able to be opened and closed using hinges.

Further, the above-mentioned unmanned underwater vehicle 9 is equipped with a female fitting member 9A to which the male fitting member 6 of the recovery device 1 can be detached, which is generally used for supporting, observing, and inspecting various underwater operations. It is possible to use a relatively small and lightweight one that is self-propelled and equipped with an underwater television etc. so that it can be anchored by inserting the anchor hardware 5 into the hole 14A of the underwater object 14. can.

Further, as the underwater object 14, a hole 14 as shown in FIG.
In addition to those with A, as shown in FIG.
The recovery device 1 of the present invention can also be applied to those having B.

Next, when recovering the underwater object 14 from the seabed B using the recovery device 1 configured as described above, as shown in FIG. It is made to dive to the seabed B where the object 14 is located, then gradually move forward and then insert the anchor hardware 5 into the hole 14A of the underwater object 14.

Next, while moving backward as described above, the anchor hardware 5 is first removed and anchored in the hole 14A, and then the entire recovery device 1 is disassembled and separated by moving backward, and as shown in FIG. Ball 8A.

8B floats up while pulling out the high tension rope 7 from the rope storage tubes 2A and 2B.

Next, the floating balls 8A and 8B are lifted onto the work boat 11, and the high tension rope 7 is connected to the work boat 11 as shown in FIG.
When pulled up by the winch 12, the anchor hardware 5 is anchored to the underwater object 14, and the underwater object 14
be collected above.

Furthermore, as shown in FIG.
If the unmanned underwater vehicle 9 replenishes the recovery device l from the recovery device holder 16 after the recovery device holding stand 16 carrying the There is no need to go back and forth between the ship 11 and the seabed 8 (thereby, the efficiency of the work of recovering the underwater object 14 is further improved).

〔Effect of the invention〕

As explained above, by using the underwater object recovery device of the present invention, it is possible to easily and efficiently recover underwater objects even with a small, lightweight, and relatively low-cost unmanned underwater vehicle. This is effective in reducing the work cost. Furthermore, since an unmanned underwater vehicle is used without using a diver, there is an advantage that safe recovery work can be carried out without being subject to limitations of water depth and time.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an underwater object recovery device according to the present invention, FIG. 2 is an exploded view of the recovery device, and FIGS. 3 to 5 are underwater object recovery operations using the underwater object recovery device according to the present invention. FIG. 6 is a partially cross-sectional side view showing the fitted state of the male fitting member and female fitting member, and FIG. 7 is a cross-sectional view showing another example of the rope storage tube. 8 is a perspective view showing another example of an underwater object, FIG. 9 is an explanatory view showing another embodiment of the present invention, and FIG. 10 is an explanatory view showing the recovery work of an underwater object using a conventional dipper. It is. DESCRIPTION OF SYMBOLS 1... Recovery device, 2... Rope storage tube, 3... Front small tube, 4... Rear small tube, 5... Anchor hardware, 6... Male fitting member, 7... ...High tension rope, 8A, 8B... Floating ball, 9... Unmanned submarine, lO... Tether cable, 11... Work boat, 12... Winch, 13...
Lifting cable, 14...Underwater object, 16...Recovery device storage stand. Fig. 1 Fig. 3 Fig. 4 Fig. 1 F Fig. 5 Fig. 7 Fig. 2 M Fig. 8

Claims (1)

[Claims] A rope storage tube that can be attached to and detached from a female fitting member of an unmanned underwater vehicle via a male fitting member, an anchor hardware that can be attached to and detached from the rope storage tube, a floating body that can be attached to the rope storage tube, and a normal An underwater object recovery device comprising a high-tensile rope stored in the rope storage tube, one end of which is attached to the anchor hardware, and the other end of which is attached to the floating body.