SU719915A1 - Device for lowering divers under water - Google Patents

Description

G. . . The invention relates to diving equipment, namely, devices for lowering divers into the water. A device for transporting objects under water is known, which contains a shaft with guides in the hull of a vessel with a centering cross-bar and a descending cabin located in them, through which gauges cables, connected to the root of the device and a winch, are passed, counterweights providing tension cables, cargo winch, connected by a cable to a descent cab l. However, such a device does not provide a shock-free installation of the descent cab to the ground. Placing bulky counterweights with a block system in the shift causes great difficulties and requires an increase in the dimensions of the mine. The closest to the invention of isaids is a device containing a shaft in the hull of a ship with rigid guides, on which the descent cabins are movable; Jeu tHbi and a portal mounted on shock absorbers; through the block of which the cargo rope is connected connecting the descent cab with cargo ne6ep, But the device does not provide a fixed position of the descent cab in the mine and on the ground for a safe entry (exit) of a diver into it when the main device is on the ground and the movement of the moving portal is tracked the vessel. The purpose of the invention is to increase the safety of the descent (ascent) of divers for eliminating the dynamic jerks of the descending cabin under conditions of sea. The chain is achieved by the fact that the device is equipped with a compensating damper with a rod and a block and retractable stops, the cargo rope being stockpiled through a block fixed to the compensating damper rod, and the extendable stops are mounted in the shaft to install the descent cabin on them.

The invention is shown in the drawing.

The device consists of a shaft 1 in the hull of the vessel c) with rigid guides 2 for moving the centering rail 3, the descending cabin 4 and cushioning of the mobile portal 5, through which blocks the guide cables 6 passed through the centering rail 3 and the descent rail. cab 4 and connected at one end with the main tool 7, and the other with the winch 8, and the cargo rope 9 connecting the launching cabin 4 with the cargo winch 10о The cargo rope 9, coming out of the block of the mobile portal 5, is stocked through the block 11, 12 minutes on the rod 13. The damper compensating schahte 1 at the level of the working deck 14 is provided 1st Pull stops providing the lowered setting them cab 4 for call (output) therein diver.

The device works as follows.

ZOMA

The vessel becomes above the diving site, and with the help of a winch 8, an anchor device 7 connected to the vessel with guide cables 6 is lowered onto the ground, and the mobile portal 5 is brought to the middle position You; the mobile stops 15 are brought to the working position, and by means of the cargo winch 10, the lower cab 4 is lowered and installed on them, and the rod 12 of the compensating shock absorber 13 by means of the cargo winch 1P v1 is led by the operator to the middle position.

When moving the movable gantry 5 to the extreme-upper position of the shafts 12 under the action of the load rope 9 compresses the springs of the compensating damper 13 and provides an increase in the length of the load rope 9 required for the non-sliding position of the firing cabin 4 on the IS retractable stops. in the lowest position when the position of the descent, the cab 4 on the sliding lugs 15 is the easing of the cargo rope 9. When this | the rod 12 under the action of the springs of the compensating shock absorber 13 extends and selects the spine of the flexible kine 9

Thus, at the same time, when the moving portal 5 of the ship’s heave is tracked by the moving portal, the compensating shock absorber 13 provides

the fixed position of the descent cabin 4 at the level of the working deck 14 on the extendable stops 15 and eliminates the loss of the load cable 9. After the diver’s entry from the working deck 14 into the descending cabin 4, the latter is first lifted by the cargo winch from the retractable stops 15, and after removing them from the working position is submerged under the water on the guide cables 6,

When the descending cab 4 reaches the ground and the rod 12 of the compensating damper 13 reaches the middle position, the load winch 10 is turned off. At the same time, the descent cab 4 remains on the ground in a stationary state due to a compensating damper 13 operating in a similar manner.

The use of the invention provides an increase in safety during the descent (ascent) of divers from a vessel in conditions of sea and undercurrent conditions, since it excludes dynamic jerks of the descent cab.

Claims (2)

Invention Formula A device for launching a diver under water, containing a shaft in the hull of a vessel with rigid guides, on which the launching cabin and gantry mounted on shock absorbers, through which block a cargo cable connecting the descending cabin with a cargo winch, is stored, are accommodated And in particular, in order to increase the safety of the descent and ascent of the divers by eliminating the dynamic jerks of the descending cabin during rough seas, it is equipped with a compensating damper with a stem and a block and retractable supports. s, wherein the hoist rope zapasovan through block fixed to the rod of the compensating suspension and retractable abutments are mounted for installation of the cabin deflatable. Sources of information taken into account in the examination 1o USSR Author's Certificate No. 495912, cl. B 63 C 11/34, 02.01.73. 2. USSR author's certificate in application number 2451337, cl. B 63 C 11/34 09.02 „77 (prototype).