SU732167A1 - Device for lowering and lifting rope to subaquatic objects - Google Patents

Description

I

The invention relates to rescue equipment, namely, devices for delivering a lifting cable to underwater objects.

A device for securing lifting slings over the hull of a sunken ship is known, comprising a rod interacting with a claw hinged on the lifting slings and having covers for holding the rod in the claw 1.

The disadvantage of this device is the need to have on the sunken object a special device for winding the line.

Closest to the invention is a device for delivering a lifting cable to underwater objects, comprising a lifting cable with light and acoustic poppies, measles and a connecting cable 2.

The device has the following disadvantages:

1. The laying of the connecting cable does not exclude the possibility of its entanglement in the process of lowering under water, as well as during unwinding of the connecting cable.

2. The need to lift together with the object and the core significantly reduces the lifting capacity of the main cable.

as it requires the use of stronger, and therefore heavier cables, than is necessary for lifting an object.

The aim of the invention is to improve the reliability of the device during the delivery of the lifting cable to a greater depth.

This goal is achieved by the fact that the device is provided with a view on which the connecting cable is wound, a reset mechanism and upper and lower swivels, with the view through the upper swivel

10 is connected to the lifting cable, and through the reset mechanism and the lower swivel - with the trunk. In addition, the reset mechanism is made in the form of a double-arm lever with a verb-hook with a locking ring and starting and safety cables.

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The invention is illustrated in the drawings.

FIG. 1 shows schematically the proposed device, the sunken object and the underwater vehicle; in fig. 2 - the same at the time of the reset mechanism

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The device consists of a lifting cable 1 with a view 2, on which the connecting cable 3 is wound, the top 4 and the bottom 5

swivels. The double-shouldered lever b is attached by a central hole to the upper swivel 4. On one, near to the middle, opening of the left shoulder of the lever b, the verb-hook 7 is fixed, and on the far hole of the same shoulder - a starting cable 8, attached to the ring 9, which locks the verb-hook The device has a safety cable 10 or a holding spring that holds the locking ring 9 in the closed position. Anchor 11 is connected by a cable with a rope 5. Above the swivel 4, the sonar and light mac are installed.

The assembled device is lowered on the lifting cable 1 prior to placing the core 11 on the ground. The submersible device, guided by the signals of the sonar and light beacons 12, approaches the view 2 and the manipulator captures the free end of the connecting cable 3. The device rests on the course to the sunken object and, unwinding, unwinds the cable 3 from the view. In this case, the swivels 4 and 5 ensure the free rotation of the view and at the same time allow the root end of the connecting cable to be fixed on the lever arm b. After attaching the cable 3 to the object, the entire complex begins to rise.

First, measles rises from the ground, while the left shoulder of the lever b goes down. As soon as the load on the right lever arm appears (i.e., after unwinding the entire cable 3 from the view and detaching the object from the ground), a moment occurs which tends to turn the right lever arm down. If the force in the connecting cable from the object being lifted is less than the mass of the core, then the left arm of the lever b will be lowered below the right arm to which the measles is attached. If the mass of the object and the force holding it on the ground is greater than the mass of the core, then the right shoulder drops to the tension of the starting 8 and safety 10 cables. If the tension in the connecting cable increases to a predetermined, predetermined load, the safety cable 10 breaks and the starting cable 8 opens the locking ring 9 of the verb-like 7. The anchor separates from the system and falls to the ground.

Claims (2)

Invention Formula . Lifting device a cable to underwater objects containing a lifting cable with light and acoustic beacons, measles and a connecting cable, differs in that in order to increase the reliability of the device when delivering the lifting cable to a greater depth, it is equipped a view on which the connecting cable is wound, a reset mechanism and upper and lower swivels, with the viewport being connected to a lifting cable by means of an upper swivel, and through a reset mechanism and lower swivel - with bark. 2. The device according to claim 1, characterized in that the reset mechanism is made in the form of a two-armed lever with a verb-hook with a locking ring and starting and safety cables. Information sources, taken into account in the examination 1. USSR author's certificate number 103053, cl. B 63 C 7/16, 07.03.55. 2.G. “Marine Technique, 1970, No. 10, p. 34 (prototype).