RU2788465C1 - Diving semi-bell of simplified design - Google Patents

Abstract

FIELD: underwater operation.

SUBSTANCE: invention relates to the field of diving equipment, namely diving bells. The diving semi-bell consists of a frame, a platform, a folding seat and a water-and-gastight dome. An eye is mounted in the dome for attaching the cable of the descent/ascent device and connectors for connecting all components of the cable-hose bundle. The upper part of the dome is made of water-and-gastight plexiglass, and in the inner part of the dome there is a pipeline with a ball valve, through which air is supplied to the dome space. The pipeline is connected to a distribution column, which is equipped with connectors for connecting the diver’s cable-hose bundle. An intercom is placed under the dome.

EFFECT: increase in the safety of diving work is achieved when carrying out work on board small vessels that are not equipped with a diving complex.

1 cl, 1 dwg

Description

The invention relates to the field of diving equipment, namely to diving bells.

Known diving arbor used on the raid diving boats of the Navy for the descent of the diver to the site of the diving operations and its subsequent rise in the decompression mode [1].

The disadvantage of the diving arbor is the inability to lift the diver in the decompression mode in case of equipment failure (transition to emergency breathing apparatus or emergency operation of the equipment), since the emergency supply of equipment provides only the possibility of non-stop ascent of the diver.

Known diving complex, equipped with a semi-bell, permanently installed on marine diving vessels of the project SDS08 type "Uglich" [2].

A distinctive feature of the semi-bell is to enable the diver to enter the air cushion and switch to breathing from it. Ventilation of the air cushion of the semi-bell is carried out by supplying air through a hose from the surface and / or cylinders placed on the outer surface of the body of the semi-bell.

The disadvantages of using the diving complex of the SDS08 sea diving vessel or the like are the large weight and size characteristics of the complex, which do not allow it to be placed on small-sized raid diving boats of the Navy, as well as the high cost of the complex.

The objective of the invention is to provide the possibility of emergency recovery of the diver in the decompression mode while minimizing the composition of the complex and its weight and size characteristics.

The problem is solved by the fact that the invention has a water and gas tight upper part (dome) made of plexiglass, under which an air cushion is created. In the upper part of the dome there is an eye for fixing the cable of the hoisting device and connectors for connecting the cable-hose bundle. The semi-bell is equipped with internal and external lamps; an intercom is placed under the dome to ensure communication with the diver. As a cable-hose bundle of a semi-bell, KSHS-125 is used from the set of equipment for the universal diving SVU-5, located on all diving vessels of the Navy, through which air and power are supplied, telephone communication is provided [3]. The breath of a diver dressed in universal diving equipment SVU-5 is provided by connecting the KShS-40, which is included in the set of equipment, to the pipeline connecting the KShS-125 with the connector for connecting the KShS-40. The descent and ascent of the semi-bell is carried out at the expense of the ship's standard lifting device, designed to work with a diving arbor. The descent commander's post includes the gas supply console 11111-2 (air supply control), which is part of the SVU-5 equipment, and the two-post diving telephone station SVS-2P (providing simultaneous two-way communication with a diver in equipment and a half-bell).

The essence of the invention lies in the fact that the weight and size characteristics of a diving semi-bell of a simplified design make it possible to use it instead of a diving arbor on small-sized diving vessels, the displacement of which does not allow the installation of a full-fledged diving complex, and the use of part of the equipment from the composition of the SVU-5 will reduce the cost of its implementation. The use of such a design will improve the safety of diving work when performing work at depths of up to 60 m.

New features of the invention are the ability to provide the possibility of emergency recovery of the diver in the decompression mode during diving operations from the board of small size vessels, on which it is impossible to place a full-fledged diving complex, and a reduction in the composition of the product due to the use of already existing diving equipment.

The advantage of the invention lies in solving the problem of ensuring the safety of diving work when working from the board of small boats that are not equipped with a diving complex.

The figure shows the device of the invention. Diving half-bell of a simplified design consists of a frame 1, a platform 2, a folding seat 3 and a water-gas-tight dome 4. An eye 7 is mounted in the dome for attaching the hoist cable and connectors 6 for connecting all components of the cable-hose bundle. In the inner part of the dome, a pipeline with a ball valve 11 is brought out, through which the diver has the ability to control the air supply to the dome space. To reduce the noise level and the strength of the flow supplied to the dome air space, a diffuser 12 is installed. The air supplied from the surface is supplied through the pipeline to the distribution column 8, equipped with connectors for connecting the diver's cable-hose bundle. In order to increase convenience and prevent the cable-hose bundle from falling from the platform, a winding device 9 is mounted on the transverse stiffening rib. The diver has the ability, if necessary, to stop the air supply to the equipment by closing the ball valve 10. Illumination of the internal space of the dome and the place of work is provided waterproof hyperbaric lamps 5. Emergency communication between the diver and the descent commander is provided by a two-way loudspeaker 13.

Literature

1. Slesarev O.M. Diving equipment of the Navy / O.M. Slesarev - M. Military publishing house, 1990. - 163 p.

2. Delyanov A.V. Russia's first ship diving complex for 100 m / A.V. Delyanov // Hydrotechnics. - 2011. - No. 4 (21) / 2010 - No. 1 (22) 2011. - p. 80-83.

3. Universal diving equipment SVU-5: Operation manual 9 V2.930.398RE - M. JSC "ΚΑΜΠΟ", 2018.

Claims (1)

Diving semi-bell, consisting of a frame, a platform, a folding seat and a water-gas-tight dome, while the dome has an eye for attaching the hoist cable and connectors for connecting all components of the cable-hose bundle, characterized in that the upper part of the dome is made of water-gas-tight plexiglass, and in the inner part of the dome, a pipeline with a ball valve is brought out, through which air is supplied to the dome space, while the pipeline is connected to a distribution column, which is equipped with connectors for connecting a diver's cable-hose bundle, while an intercom is placed under the dome.

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