RU225031U1 - CHANNEL SEALING DEVICE - Google Patents

Abstract

The utility model relates to devices used for sealing the channels of the internal cavity of a cable drainage pipeline to prevent the possibility of penetration of water and flammable (explosive) gases, and is used in cable wells and cable entry shafts. Can be used both during construction and during operation of cable ducts. The purpose of the utility model is to prevent the possibility of penetration of water and flammable (explosive) gases into cable wells and cable entry shafts. The technical result of the utility model is the creation of a sealing device that will facilitate the implementation of work on sealing channels both at existing facilities and during the construction of new ones, reduce installation time, and also seal both occupied and free channels. The stated problem is solved, and the technical result is achieved by using a device that makes it possible to ensure the tightness of cable ducts in cable wells and cable entry shafts, and can be used for all types of cables, regardless of their purpose and quantity.

Description

The utility model relates to devices used for sealing the channels of the internal cavity of a cable drainage pipeline to prevent the possibility of penetration of water and flammable (explosive) gases, and is used in cable wells and cable entry shafts. Can be used both during construction and during operation of cable ducts.

There is a known method for sealing cable ducts (patent RU 95118549 “Method for sealing cable ducts”), the disadvantages of which are:

time to prepare a mixture of many components and mix in a certain proportion;

preparing the mixture immediately before use;

the need for holding until the mixture hardens;

labor intensity of the process.

A sealing device for cable ducts is known (patent RU 2014696 “Locking body for cable ducts”), consisting of an elastic chamber filled with air under pressure.

The disadvantages of this device are:

lack of proper tightness of the channel due to insufficient constant pressure when the ambient temperature changes;

impossibility of sealing more than one cable in a channel.

The purpose of the utility model is to prevent the possibility of penetration of water and flammable (explosive) gases into cable wells and cable entry shafts.

The technical result of the utility model is the creation of a sealing device that will facilitate the implementation of work on sealing channels both at existing facilities and during the construction of new ones, reduce installation time, and also seal both occupied and free channels.

The stated problem is solved, and the technical result is achieved by using a device that makes it possible to ensure the tightness of cable ducts in cable wells and cable entry shafts, and can be used for all types of cables, regardless of their purpose and quantity.

A drawing of a cable duct sealing device is shown in Fig. 1.

The channel sealing device consists of a base (1) made as one piece with studs (2), composite support plates (3), a pressure plate (4), nuts (5) and lock nuts (6) that serve to fix the pressure plate (4) , elastic disc-shaped sealing elements (7), which, when installed, overlap each other's cuts to ensure tightness. The diameter of the holes in the sealing device for cable passage must exceed their diameter for free laying. The elements of the device are made of sheet steel, the components of which have holes for the passage of cables and studs. A composite support plate (3) is installed on the base (1), then elastic sealing elements (7), after which the cables are inserted into the holes. A composite support plate (3) and a pressure plate (4) are installed on top of the sealing element (7), which are tightened with nuts (5) with a socket wrench. Loosening of the threaded connection is prevented due to the locknuts (6). Sealing is achieved by the fact that after installing the sealing device in the channel and screwing in the nuts on the studs, the sealing element, compressed by the clamping elements of the device, is compacted, filling the volume between the elements of the device and the inner surface of the channel, between the cables and the edges of the holes, reliably adhering to the surfaces.

A cross-sectional drawing of a cable channel with a channel sealing device is shown in Fig. 2.

Drawings for the declared device were developed and prototypes were manufactured, which were successfully tested at the Communications Department of Gazprom Transgaz Ukhta LLC.

The advantages of the developed utility model are:

collapsible design of the sealing device;

reduction of work completion time;

simplification of installation for sealing channels;

compact design;

sealing of both occupied and free channels;

Possibility of use for all types of cables, regardless of their purpose and scope of application.

Claims (1)

A device for sealing channels, characterized in that it consists of a base (1) made as one piece with pins (2), composite support plates (3), a pressure plate (4), nuts (5) for fixing the pressure plate (4) and locknuts (6), preventing loosening of the threaded connection, elastic sealing elements in the form of a disk (7), providing sealing and filling between the elements of the device and the inner surface of the channel, between cables and the edges of the holes, reliably adhering to the surfaces.

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