RU141856U1 - DISTRIBUTION DEVICE OF FIBER-OPTICAL COMMUNICATION LINE (OPTIONS) - Google Patents

Abstract

1. A fiber-optic communication line switchgear comprising a housing with passages and elastic plugs in them for inputting an optical cable and outputting cables of optical cords, a removable cover and a cassette for laying optical fibers located in the housing, on the upper and lower sides of which restrictive edges are made with tongues protruding towards the central part, while on the lower side of the cassette facing the bottom in the working position, lodgements are made for fixing the splices of optical fibers in them, on the upper side of the cassette there are racks with grooves for installing optical fiber connectors through them and elastic racks with protrusions in the upper part for fixing the optical connectors, characterized in that a plate attached to the bottom of the cassette and the bottom of the housing has elements for fixing to it the incoming optical cable, as well as two loops for hinging the cassette in the housing with the possibility of its removal and rotation, on the upper side of the plate there are restrictive borders with tongues, in the direction of the center for laying a supply of optical fibers under them, while on the opposite side of the plate hinges there is an elastic retainer for fixing the cartridge in the housing in its working position, the housing, cover, cassette and plate are made of elastic plastic, and on the outside the housing has fastening elements with holes for screws. 2. Fiber-optic communication line switchgear comprising a housing with passages and elastic plugs therein for inputting an optical cable and outputting a cable

Description

The indicated technical solutions relate to means for distributing signals on the subscriber side of fiber-optic communication lines. It is intended for its use in the field of fiber-optic communication lines, in construction during the laying of these lines, in particular, for use in the design of distribution cabinets designed for the end cutting, distribution and switching of fiber optical communication cables.

Known switchgear fiber-optic communication lines, each of which has a housing and means for placing and fixing in it at least one cassette or multiple cassettes for optical fibers and their connectors (RU 2371743 C1, 03/27/2009 with analogues described in US 5100221 A, 03/31/1992. RU 2138067 C1, 09/20/1999. RU 2059258 C1, 04/27/1996. RU 2071074 C1, 12/27/1996. US 5740299, 04/14/1998. RU 101210 U1, 01/10/2011). Moreover, in the modular cross block for the optical communication line according to patent KSH371743C1 there is a housing and rotary plates located in it, cassettes with optical fiber splices are mounted on the axis of the body, the rotation axis is perpendicular to the plane of one part of the L-shaped plate, and the section for mounting the cartridge with splices The optical fiber is on the other side of the plate.

Patent RU 5740299 describes a modular cross block for an optical communication line that acts as a switchgear, which consists of a panel with ordered channels for laying optical fiber fibers and hinged on the panel with a number of swivel cartridges for storing splice and excess length of optical fibers. The device is intended for use in connecting optical fibers with an optical fiber device having input and output ends and contains many cassettes for fiber-optic connections. Each cassette is usually installed and maintained using the appropriate element. Routing elements are rigidly connected to one another, so that their bodies are located in a unified box. Each cassette can be rotated to provide access to it in the stowed position from alignment with other cassettes.

Patent RU 101210 U1 presents a modular cross-section of an optical communication line comprising a housing with a load-bearing wall, on which a bracket with step-like supports is fixed, while a removable shelf with a cassette mounted on it is pivotally connected with the possibility of rotation relative to the rear wall and the bracket designed for fixing and storing optical fibers of a communication cable and their splices.

Of the known technical solutions, the closest technical solution to the technical solution presented in this description is a switchgear for optical cables (RU 116248 U1, 09/19/2011). This device is characterized in that it contains a housing with a back, side, bottom and top walls. case cover, at least two entries for optical cables located in them are made in the case walls, a hinged swivel shelf is located in the case between the back wall and the cover, on one side of the shelf facing the back wall of the case, in the working position of the shelf there are means for fixing splices of optical fibers, and on the side of the shelf facing the cabinet lid, in the working position of the shelf there is a panel that has means for attaching adapters for connecting optical connectors to it, while in the shelf There are openings for optical fibers to pass through them from one side of the shelf to its other side. In this case, the hinged shelf in this device can be removable.

The known switchgear according to the patent RU 116248 U1 does not fully meet the increasing requirements for switchgear fiber-optic communication lines, because it has a complex structure and disadvantages associated with the inconvenience of removing the cartridge from the housing and installing the cartridge in the housing, which creates difficulties during installation and dismantling work. When removing a cartridge from the case, breakdowns of the device for connecting the cartridge to the case are not excluded, which significantly reduces the reliability of the device.

The technical result of the utility model is to increase the reliability of the switchgear and the convenience of installation and dismantling.

The technical result was obtained by a fiber-optic communication line switchgear, comprising a housing with passages and elastic plugs in them for inputting an optical cable and outputting cables of optical cords, a removable cover and a cassette for laying optical fibers located in the housing, on the upper and lower sides of which restrictive sides with tongues protruding towards the central part, while on the lower side of the cassette facing the bottom in working position, lodgements are made for fixing in splices of optical fibers, racks with grooves are made on the upper side of the cassette for installing optical fiber through connectors and elastic racks with protrusions in the upper part for fixing optical connectors, and a plate attached to the bottom of the cassette and the bottom of the casing has elements for fixing to of the incoming optical cable, as well as two loops for hinging the cassette in the housing with the possibility of its removal and rotation, on the upper side of the plate there are restrictive racks with tongue with glasses directed towards the center for laying a supply of optical fibers under them, while on the opposite side of the plate hinges there is an elastic lock for fixing the cartridge in the housing in its working position, the housing, cover, cassette and plate are made of elastic plastic, and the outer side of the housing is made of fastening elements with holes for screws.

The technical result was obtained by a fiber-optic communication line switchgear, comprising a housing with passages and elastic plugs in them for inputting an optical cable and outputting cables of optical cords, a removable cover and a cassette for laying optical fibers located in the housing, on the upper and lower sides of which restrictive sides with tongues protruding towards the central part, while on the lower side of the cassette facing the bottom in working position, lodgements are made for fixing in splices of optical fibers, racks with grooves are made on the upper side of the cassette for installing optical fiber through connectors and elastic racks with protrusions in the upper part for fixing optical connectors, characterized in that a plate attached to the bottom is installed between the cassette and the bottom of the casing for fixing the incoming optical cable to it, as well as two loops for hinging the cartridge in the housing with the possibility of its removal and rotation, on the upper side of the plate are made restrictively стойки racks with tongues directed toward the center for laying a supply of optical fibers under them, while on the opposite side of the plate from the hinges of the plate there is an elastic retainer for fixing the cartridge in the housing in its working position, the housing and cover are made of metal, the cartridge and plate are made of elastic plastic, and the lid is connected to the housing.

In FIG. 1 shows a first embodiment of a switchgear assembly with a cassette and connectors attached thereto;

in FIG. 2 shows a switchgear with cassette (connectors removed);

in FIG. 3 - switchgear with the cartridge turned into an inoperative position, closed with a plug from below;

in FIG. 4 - switchgear with the cassette turned into an inoperative intermediate position, closed with a plug from below;

in FIG. 5 - switchgear with a cartridge without a plug and a plate in the working position;

in FIG. 6 - switchgear with cassette in its other design, turned into an inoperative position and the plate;

in FIG. 7 - switchgear plate;

in FIG. 8, 9, 10 and 11 - cassette switchgear in its various versions;

in FIG. 12 - plug cassette switchgear.

In FIG. 1-12, a switchgear is shown, all elements of which are made of plastic (the first version of the switchgear).

In FIG. 13 shows a second embodiment of a switchgear assembly with a metal housing and a cover and a cassette installed in the housing (the cover is shown in a plan view);

in FIG. 14 the cover of the second variant of the device in bottom view;

in FIG. 15 shows a device with recesses in the housing for passages in the sides of the housing and seals;

in FIG. 16 - a device with dispensers fixed to the cassette from its lower side;

in FIG. 17 - cassette with distributors fixed on it from its lower side.

The first embodiment of the distribution device comprises a housing 1 (Fig. 1-6) having a trough-like shape with a recess 2, in which the cassette 3 is located in the working position, designed to accommodate the fibers of the optical communication line and fiber connectors (not shown). The cassette 3 is installed in the housing 1 and is fixed by the elastic retainer 4 of the device in its working position. The cassette is connected to the housing by a special connection, which is a node consisting of two sequentially arranged parts.

The first part of the connection or the first loop is a cylindrical protrusion 5 (Fig. 8), made on the cassette, as well as the hole 6 mating with it (Fig. 7), made in the rack of the plate 9, which is connected with the housing 1. The plate 9 performs the functions boards with many different fasteners made on it. The cylindrical protrusion 5 is made integral with the cartridge 3, is located behind its side 7 and parallel to it, and the hole 6 is made in the rack 8 of the plate 9, which is rigidly fixed to the bottom of the housing 1.

The second part of the connection or the second loop contains the axis 10 (Fig. 8) and the elastic latch 11 interacting with it (Fig. 7), and the axis 10 is made integral with the cartridge 3 (Fig. 10), located behind its side 7 and parallel to it. The axis 10 and the cylindrical protrusion 5 are located on one straight line 12, which is the geometric axis of rotation of the cartridge 3 relative to the housing 1.

Thus, the cartridge is pivotally connected to the housing by two successive parts, which are essentially two loops for rotating the cartridge relative to the housing and moving it relative to the housing along its side.

The elastic latch 11 and the elastic retainer 4 (Fig. 7) are made integral with the plate 9 and are located on its opposite sides. The plate 9 is installed in the recess 2 of the housing 1 and is connected to the housing by screws 13 (Fig. 2) screwed into the bottom of the housing 1. The screw heads are located in the holes of the plate 9.

The distribution device has a removable cover 14 (Fig. 1), which is attached to the plate 9 with screws (not shown). On the upper side 15 of the plate 9 (Fig. 3, 4), on the lower side 16 of the cassette (Fig. 5), on the upper side 17 of the cassette 3 (Fig. 1) there are a lot of restrictive sides 18 with tabs protruding towards the Central part of the distribution devices. Each tongue is made at the same time with its corresponding side 18.

On the lower side 16 of the cassette 3 (Fig. 8), facing the bottom in the working position, a lot of lodges 19 are made for fixing optical fibers therein, while the distributors 20 are fixed on the lower side of the cassette (Fig. 16, 17).

On the opposite sides 21 (Fig. 4) of the housing 1, passages are made - inlet and outlet openings 22 (Fig. 16), closed by removable sealed elastic plugs 23. On the outer opposite sides of the housing 1 (Fig. 1) fastening elements 24 are made integral with the housing with holes in them under the screws for attaching the housing 1 to the distribution cabinet of the communication line.

On the bottom side of the cassette 3 it is closed by a plug 25 (Fig. 3, 4, 12), which is fixed on the cassette 3 with screws. The housing 1 in its sides 21 has other passages made in the form of cutouts in the sides, made in the form of cutouts 26 (Fig. 15), in which other elastic removable plugs 27 (Fig. 4) are installed, which serve for the tight input and output of optical cords. The housing 1, cover 14, cassette 3 and plate 9 of the first embodiment of the switchgear are made of plastic by injection molding. In the first embodiment of the device, the cover 14 is attached to the plate 9, for which the plate has at least a pair of holes 28 with threaded embedded elements in the racks 29 (Fig. 7) under the screws for fastening the cover 14 to the plate. Mortgages are not shown. Racks 29 are molded at the same time with the plate 9. Racks 29 are located at the corners of the cassette outside, when the cassette is located in the housing 1 in the working position. The plate 9 has elements 30 for fixing an incoming optical cable to it. On the outer side of the cassette, racks 31 are made with grooves for installing passage-through connectors 32 of optical fibers in them, as well as elastic racks 33 with protrusions at the ends by which the connectors are fixed in racks 31.

The second variant of the switchgear contains all of the above elements and connections of the first variant of the device, except that, unlike the first variant, the housing 1 and the cover 14 of the second variant (Fig. 13, 14) of the device are made of metal, and the cassette 3 and plate 9 are made from plastic. Moreover, the second embodiment of the device does not have fastening elements 24.

In the second embodiment, the metal cover 14 has flanges 34 on its opposite sides, in which holes 35 are made, and on the body 1 there are ears 36 with holes for screws 37 for connecting the cover 14 to the body 1.

In both versions of the device on the inner side of the cassette 3 in its elastic racks 33 fixed optical fiber distributors 38.

The switchgear (its first option) works as follows. In a device mounted as shown in FIG. 1, many fibers are fixed in lodges 19 (Fig. 8), and on the upper side 17 of the cassette (Fig. 1) bunches of optical fibers are located under the tongues of the sides 18, which are connected via cables 32 to cables of fiber-optic communication lines, and the cables have in the inlet openings 22 (FIG. 1), which are then covered with sealed elastic plugs 23. Optical cords (not shown) are inserted into the housing 1 and removed from it through the elastic plugs 27. Next, the cassette 3 from the bottom is buried with a plug 25 (Fig. 3, 4), while fixing the plug on the cartridge 3 with screws. After that, the housing 1 of the device is closed by a cover 14 and the housing 1 is mounted in the control cabinet by means of the elements 24.

If necessary, during operation, the cover 14 (Fig. 1) is removed from the housing 1, the elastic retainer 4 is pulled away from the cassette 3 (Fig. 3), then the cassette 3 is turned to the extreme right position, the cap 25 is removed and access is opened connectors, bundles and optical fibers. For ease of installation and dismantling, the cartridge 3 from the plate 9 is disconnected. To do this, the right side of the cartridge 3 (Fig. 5) is smoothly pulled without jerking to the side of the plate 9 and the axis 10 (Fig. 8) is removed from the elastic latch 11 (Fig. 7), and then the cartridge is moved along the side of the housing 1 and the cylindrical is removed the protrusion 5 (Fig. 8) from the hole 6 of the rack 8 (Fig. 7), which is made on the plate 9. In this position, the cassette 3 is disconnected from the plate 9 of the device. Rotate and move the cassette 3 in predetermined directions, thereby providing the maximum possible access to connectors, bundles, fibers and cables of fiber optic communication lines. Smooth, without jerking, detaching the axis 10 from the latch 11 eliminates damage to the cassette, optical fibers and their bundles attached to the cassette, and also eliminates damage to the very connection of the cassette with the plate.

As a result, the above-described design features of the device provide a significant increase in the convenience of installation, repair, and maintenance of fiber-optic communication lines.

The implementation of the housing, covers, cassettes and plates made of plastic in the first version of the switchgear provides the possibility of wide unification of the elements of the devices and their connections with each other, which simplifies the production process.

The second variant of the device works similarly to the first variant, while in the second embodiment, the cover 14 (Fig. 13) is screwed 37 to the housing 1 of the device, for which each screw 37 is located in the hole 35 flanging 34 (Fig. 14), enter it into the hole of the eye 36 and pull the cover 14 to the housing with a nut.

The implementation of the cover and the casing of the device is made of metal, and the cassettes and plates are made of plastic, which makes it possible to simplify the production process by replacing injection molding of plastic with the stamping of the casing and the cover of the device made of metal.

In the production process, both options expand the possibilities of manufacturing devices and the consumer choosing devices that optimally meet their operating conditions.

Both versions of the device increase its reliability by eliminating damage to the cartridge during its removal from the housing, while increasing the convenience of removing the cartridge, expanding its accessibility due to the maximum possible rotation of the cartridge relative to the housing, which increases the convenience of installation and dismantling work and maintenance of communication lines in operational conditions.

Claims (2)

1. A fiber-optic communication line switchgear comprising a housing with passages and elastic plugs in them for inputting an optical cable and outputting cables of optical cords, a removable cover and a cassette for laying optical fibers located in the housing, on the upper and lower sides of which restrictive edges are made with tongues protruding towards the central part, while on the lower side of the cassette facing the bottom in the working position, lodgements are made for fixing the splices of optical fibers in them, on the upper side of the cassette there are racks with grooves for installing optical fiber connectors through them and elastic racks with protrusions in the upper part for fixing the optical connectors, characterized in that a plate attached to the bottom of the cassette and the bottom of the housing has elements for fixing to it the incoming optical cable, as well as two loops for hinging the cassette in the housing with the possibility of its removal and rotation, on the upper side of the plate there are restrictive borders with tongues, in the direction of the center for laying a supply of optical fibers under them, while on the opposite side of the plate hinges there is an elastic retainer for fixing the cartridge in the housing in its working position, the housing, cover, cassette and plate are made of elastic plastic, and on the outside Housing made fasteners with holes for screws. 2. A fiber-optic communication line switchgear comprising a housing with passages and elastic plugs in them for inputting an optical cable and outputting cables of optical cords, a removable cover and a cassette for laying optical fibers located in the housing, on the upper and lower sides of which restrictive edges are made with tongues protruding towards the central part, while on the lower side of the cassette facing the bottom in the working position, lodgements for fixing are made splices of optical fibers in them, racks with grooves are made on the upper side of the cassette for installing optical fiber through connectors and elastic racks with protrusions in the upper part for fixing optical connectors, characterized in that a plate attached to the bottom is installed between the cassette and the bottom of the casing, having elements for fixing the incoming optical cable to it, as well as two loops for hinging the cassette in the housing with the possibility of its removal and rotation, on the upper side of the plate are made to limit side panels with tabs directed toward the center for laying a supply of optical fibers under them, while on the opposite side of the plate from the hinges of the plate there is an elastic retainer for fixing the cartridge in the housing in its working position, the housing and cover are made of metal, the cartridge and plate are made of elastic plastic, and the lid is connected to the housing.

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