CN209707761U - A kind of explosion prevention function duct optical cable connector box - Google Patents

Abstract

The utility model discloses a kind of explosion prevention function duct optical cable connector boxs, use to solve the problems, such as that cable splice closure lacks explosion prevention function and can not be adapted to a variety of occasions in the prior art.It include: that the first optical cable and the second optical cable connect inside connector box, and it is pierced by respectively from both ends, the first sheath is arranged outside first optical cable, the second sheath is arranged outside second optical cable, sealing installation top cover at the top of connector box, air inlet and air outlet are set on top cover, and air inlet and air outlet are stoppered with sealing-plug；Nitrogen is filled with inside connector box.Beneficial effect includes: not only to protecting at fiber cable joint; equally optical cable itself is effectively protected; to which effective solution can not be adapted to the problem of a variety of occasions use; the joint of optical cable is effectively protected using connector box and top cover; the damage for avoiding the optical cable when being laid with, increases the service life of optical cable.

Description

A kind of explosion prevention function duct optical cable connector box

Technical field

The utility model relates to electric power optical cable connector box technical field more particularly to a kind of explosion prevention function duct optical cable connectors Box.

Background technique

The important feature of electric power optical cable is exactly that can lay with the same bar of electric line (same to channel), has benefited from electricity abundant Netcom road accelerates advancing by leaps and bounds for power telecom network.But in recent years in the optical cable as caused by end explosion, on fire etc. Disconnected event happens occasionally, and causes larger impact to the safe operation of power telecom network.It is big due to entering scheduling in city optical cable Framework optical cable enters control room and inevitably there is with a cable the case where with ditch in company, the county Lou He and substation, such as Fruit does not have good protection to exposed optical cable and connector box in ditch, and the operation and maintenance of channel optical cable are very passive.In addition more Under number OPGW are normally placed at and are drawn on gate framework by steel pipe with the connecting of guiding optical cable after entering the station, such mode there are the problem of Be nozzle waterproof closure become an important maintenance work, the OPGW cable splice closure repair and maintenance after putting into operation When, staff needs to climb or use is ascended a height Operation Van, large labor intensity and dangerous, takes time and effort, low efficiency.This is practical Novel is specially a kind of explosion prevention function duct optical cable connector box.

But there are deficiencies below for existing technology:

1, the interruption of optical cables event as caused by end explosion, on fire etc. happens occasionally in the prior art, existing light Cable connector box lacks explosion prevention function, can not protect on fire, explosion accident optical cable, can not reduce loss；

2, existing cable splice closure can not be suitable in cable duct and OPGW optical cable draws lower scene use, utility function It is single.

Summary of the invention

The utility model embodiment provides a kind of explosion prevention function duct optical cable connector box, to solve optical cable in the prior art Connector box lacks explosion prevention function and can not be adapted to the problem of a variety of occasions use.

The utility model embodiment provides a kind of explosion prevention function duct optical cable connector box, comprising: the first optical cable and the second light Cable connects inside connector box, and is pierced by respectively from both ends, and the first sheath is arranged outside the first optical cable, is arranged outside the second optical cable Top cover is installed in second sheath, the sealing of connector box top, and air inlet and air outlet, air inlet and air outlet sealing are arranged on top cover Plug stoppers；Nitrogen is filled with inside connector box.

Preferably, the first optical cable and the second optical cable are arranged fiber boot pipe outside connector box internal connection.

Preferably, connector box side-glance shape is convex shape, the side upper surface that connector box is pierced by the first optical cable passes through spiral shell The first upper cover is fixedly mounted in bolt, and the side upper surface that connector box is pierced by the second optical cable is bolted the second upper cover of installation, connects Head cartridge middle top surface is bolted installation top cover.

Preferably, the upper surface of connector box two sides is each provided with the first half slot, the lower end of the first upper cover and the second upper cover Face is all provided with the second half slot, and the first sheath and the second sheath are all placed in the circle that the first half slot and the second half slot are formed In shape channel.

Preferably, being respectively equipped with an anchor ear on the first optical cable and the second optical cable inside connector box, anchor ear is located at first Optical cable and the second optical cable and connector box junction.

Preferably, being equipped with rectangular positive stop strip on four side of connector box upper surface, limit engaged therewith is provided on the inside of top cover Position slot is equipped with the first sealing strip on the top cover on the inside of limiting slot, the second sealing strip is equipped on the top cover on the outside of limiting slot.

Preferably, flame-retardant layer and shield lines, the second sheath are set gradually between the first sheath and the first optical cable from inside to outside And second set gradually flame-retardant layer and shield lines between optical cable from inside to outside.

The utility model beneficial effect include: (1) the utility model by setting connector box, top cover, flame-retardant layer, anchor ear, Air inlet makes the utility model have multiple fire-proof and explosion-proof function, maximumlly carries out fire-proof and explosion-proof processing to optical cable, avoids light Cable results in greater loss, unspoiled optical cable in channel is effectively protected, so that effective solution cable splice closure lacks The problem of explosion prevention function, after the completion of the first optical cable main body and the second optical cable main body connector are handled, by top closure, by aluminium alloy The rectangular positive stop strip snap-fit of limiting slot and aluminum alloy joint box main body upper end on the inside of upper cover, in turn, recycling first is close Strip of paper used for sealing and the second sealing strip are sealed processing to its interface, prevent gas from leaking, and then due to aluminum alloy joint box main body It is all aluminum alloy material manufacture with aluminium alloy upper cover, even if the generation of the joint of the first optical cable main body and the second optical cable main body is on fire Phenomenon sets off an explosion, and will not directly damage aluminum alloy joint box main body and aluminium alloy upper cover, itself has good strong Degree, can not explode damage easily, and anchor ear is on the outside of the first optical cable main body and the second optical cable main body to being locked, being capable of maximum Limit compacting optical cable it is on fire when flare extension, avoid the generation of bigger fire, and the first sheath and the second sheath Inside be all provided with flame-retardant layer, carry out when can be on fire to optical cable good fire-retardant, reduce the loss journey of optical cable damage on fire Degree before being laid with optical cable, is first opened the sealing-plug inside air inlet and air outlet, is connect by air inlet case aluminium alloy in turn Head cartridge body interior is filled with nitrogen, constantly by re-closed gas outlet after the air discharge inside aluminum alloy joint box main body, or else Disconnected to be filled with nitrogen, full of recycling sealing-plug to close air inlet after aluminum alloy joint box main body, nitrogen does not have combustion-supporting property, can hinder The only generation of fire, the utility model is easy to operate, it is safe and reliable, prevent the external force destroying infection light such as channel inner cable head explosion Cable road transport row, and it is big on the grip force of splicing cables, avoidable due to influencing fiber transmission attenuation after splicing cables stress, it connects The disengaging direction of continuous optical cable and line parallel, avoid the occurrence of cable bend radii it is small caused by fibre loss increase.

(2) the utility model enables the utility model to be suitable for a variety of occasions by setting the first sheath, the second sheath Use equally optical cable itself is effectively protected not only to being protected at fiber cable joint, thus effective solution It can not be adapted to the problem of a variety of occasions use, using aluminum alloy joint box main body and aluminium alloy upper cover to the joint of optical cable It is effectively protected, the first optical cable main body and the second optical cable main body is prevented respectively using the first sheath and the second sheath Shield avoids the damage of the optical cable when being laid with, and increases the service life of optical cable, the applicable OPGW of the utility model and guiding optical cable etc. The connecting of a variety of optical cable forms, is adapted to multiple mounting modes, practical.

Detailed description of the invention

Fig. 1 is the schematic diagram of internal structure of the explosion prevention function duct optical cable connector box in the utility model embodiment；

Fig. 2 is the schematic diagram of the section structure of the explosion prevention function duct optical cable connector box in the utility model embodiment；

Fig. 3 is the cable cross-section structural schematic diagram with sheath in the utility model embodiment；

Fig. 4 is the schematic diagram of the section structure of the top cover in the utility model embodiment；

Fig. 5 is the top view of the connector box in the utility model embodiment；

Fig. 6 is the bottom view of the top cover in the utility model embodiment；

Fig. 7 is the side view of the connector box and top cover in the utility model embodiment；

Fig. 8 is the side view of the first upper cover in the utility model embodiment.

In attached drawing: the first sheath 1, the first optical cable 2, the first bolt 3, connector box 4, anchor ear 5, fiber optic protection casing 6, first Upper cover 7, the second sheath 8, the second optical cable 9, the second upper cover 10, the second bolt 11, gas outlet 12, top cover 13, air inlet 14, sealing Plug 15, rectangular positive stop strip 16 protect lines 17, flame-retardant layer 18, the first sealing strip 19, the second sealing strip 20, limiting slot 21, and the first half Circular groove 22, the second half slot 23.

Specific embodiment

Embodiment in order to provide a kind of connector box with anti-explosion fire function, below in conjunction with Figure of description to this The preferred embodiment of utility model is illustrated.

Refering to fig. 1 shown in-Fig. 8, the utility model embodiment provides a kind of explosion prevention function duct optical cable connector box 4, special Sign is, comprising: the first optical cable 2 and the second optical cable 9 connect inside connector box 4, and are pierced by respectively from both ends, the first optical cable 2 Outside is arranged the first sheath 1, and the second sheath 8 is arranged outside the second optical cable 9, sealing installation top cover 13, top cover 13 at the top of connector box 4 Upper setting air inlet 14 and gas outlet 12, air inlet 14 and gas outlet 12 are stoppered with sealing-plug 15；Nitrogen is filled with inside connector box 4 Gas.

Specifically, the first optical cable 2 and the second optical cable 9 are arranged fiber boot pipe 6 outside 4 internal connection of connector box.It connects 4 side-glance shape of head cartridge is convex shape, and the side upper surface that connector box 4 is pierced by the first optical cable 2 is bolted installation first Upper cover 7, the side upper surface that connector box 4 is pierced by the second optical cable 9 are bolted the second upper cover 10 of installation, 4 middle part of connector box Top surface is bolted installation top cover 13.The upper surface of 4 two sides of connector box is each provided with the first half slot 22, the first upper cover 7 It is all provided with the second half slot 23 with the lower end surface of the second upper cover 10, the first sheath 1 and the second sheath 8 are all placed in the first semicircle In the circular channel that slot 22 and the second half slot 23 are formed.It is respectively installed on the first optical cable 2 and the second optical cable 9 inside connector box 4 There is an anchor ear 5, anchor ear 5 is located at 4 junction of the first optical cable 2 and the second optical cable 9 and connector box.On 4 upper surface of connector box, four side Rectangular positive stop strip 16 is installed, is provided with limiting slot 21 engaged therewith on the inside of top cover 13, on the top cover 13 of 21 inside of limiting slot First sealing strip 19 is installed, the second sealing strip 20 is installed on the top cover 13 in 21 outside of limiting slot.First sheath 1 and the first light Set gradually from inside to outside between cable 2 flame-retardant layer 18 and shield lines 17, between the second sheath 8 and the second optical cable 9 from inside to outside according to Secondary setting flame-retardant layer 18 and shield lines 17.

It is described in detail below the technical solution of the utility model includes: a kind of explosion prevention function duct optical cable connector box, including first Sheath 1, connector box 4 and top cover 13, connector box 4 are convex structure, and the upper surface of 4 side of connector box is installed by the first bolt 3 There is the first upper cover 7, the upper surface of 4 other side of connector box is equipped with the second upper cover 10, the side of connector box 4 by the first bolt 3 It is arranged with the first sheath 1, the inside of the first sheath 1 is socketed with the first optical cable 2, and the other side of connector box 4 is arranged with the second sheath 8, the joint of optical cable is effectively protected using connector box 4 and top cover 13, is divided using the first sheath 1 and the second sheath 8 It is other that first optical cable 2 and the second optical cable 9 are protected, avoid the damage of the optical cable when being laid with, the applicable OPGW of the utility model Connecting with a variety of optical cable forms such as optical cable are guided, is adapted to multiple mounting modes, practical, the upper end of 4 two sides of connector box Face is all provided with the first half slot 22, and the lower end surface of the first upper cover 7 and the second upper cover 10 is all provided with the second half slot 23, and first Sheath 1 and the second sheath 8 are all placed in the first half slot 22 and the second half slot 23, and the inside of the second sheath 8 is socketed with Two optical cables 9, the first optical cable 2 of the inside of connector box 4 and the surface of the second optical cable 9 are all equipped with anchor ear 5, and the of 4 inside of connector box The joint outer surface of one optical cable 2 and the second optical cable 9 is arranged with fiber optic protection casing 6, and the upper end of connector box 4 passes through the second bolt 11 are equipped with top cover 13, and the upper surface of connector box 4 is equipped with rectangular positive stop strip 16, and the inside of top cover 13 is provided with limiting slot 21, First sealing strip 19 is installed on the inside of the top cover 13 in 21 outside of limiting slot, is equipped with second on the inside of the top cover 13 of 21 inside of limiting slot Sealing strip 20 first penetrates the first optical cable 2 in first sheath 1 when carrying out the connector of optical cable, and the second optical cable 9 is penetrated the In two sheaths 8, in turn, the first sheath 1 is placed on the first half slot 22 of 4 side of connector box, utilizes 7 inside of the first upper cover The second half slot 23 it is engaged, and keep the first upper cover 7 fixed with connector box 4 using the first bolt 3, similarly, by the second shield Set 8 is placed on the first half slot 22 of 4 other side of connector box, using the second half slot 23 of 10 inside of the second upper cover by second Sheath 8 is engaged, and recycles the first bolt 3 to be fixedly connected the second upper cover 10 with connector box 4, then by the first optical cable 2 Inner end with the second optical cable 9 is to 4 Inner elongate of connector box, and the first optical cable 2 and 9 surface of the second optical cable inside connector box 4 are all It is locked using anchor ear 5, and then is socketed fiber optic protection casing 6 again, the joint carried out to the first optical cable 2 and the second optical cable 9 carries out Joining process, the inside of top cover 13 are provided with gas outlet 12, are provided with air inlet 14 on the inside of the top cover 13 of 12 side of gas outlet, into The inside of port 14 and gas outlet 12 is all equipped with sealing-plug 15, and the structure of the first sheath 1 and the second sheath 8 is completely the same, and Flame-retardant layer 18 and shield lines 17 are provided between one sheath 1 and the first optical cable 2 from inside to outside, flame-retardant layer 18 is set to the first optical cable 2 outside, shield lines 17 are located at the outside of flame-retardant layer 18, and the first sheath 1 is located at the outside of shield lines 17, in 2 He of the first optical cable After the completion of the processing of second optical cable, 9 connector, top cover 13 is closed, by the side of the limiting slot 21 of 13 inside of top cover and 4 upper end of connector box 16 snap-fit of shape positive stop strip recycles the first sealing strip 19 and the second sealing strip 20, is sealed place to its interface in turn Reason, and then since connector box 4 and top cover 13 are all aluminum alloy material manufacture, even if the joint of the first optical cable 2 and the second optical cable 9 Phenomenon on fire occurs, sets off an explosion, will not directly damage connector box 4 and top cover 13, itself has good intensity, can not Explosion damage easily, and anchor ear 5 is locked to the outside of the first optical cable 2 and the second optical cable 9, is capable of the compacting of maximum limit The extension of flare when optical cable is on fire, and the inside of the first sheath 1 and the second sheath 8 is all provided with flame-retardant layer 18, it can be to light It carries out good fire-retardant when cable is on fire, in turn, before being laid with optical cable, first opens the sealing inside air inlet 14 and gas outlet 12 Plug 15, by being filled with nitrogen inside 14 casees connector boxs of air inlet 4, constantly by after air discharge connector box 4 inside it is re-closed out Port 12, then it is constantly filled with nitrogen, full of recycling sealing-plug 15 to close air inlet 14 after connector box 4, nitrogen does not have combustion-supporting property, Can prevent the generation of fire, the utility model is easy to operate, it is safe and reliable, prevent the external force such as channel inner cable head explosion from destroying Lightguide cable link operation is influenced, and big on the grip force of splicing cables, avoidable due to influencing optical fiber transmission after splicing cables stress Loss, the disengaging direction of splicing cables and line parallel, avoid the occurrence of cable bend radii it is small caused by fibre loss increase.

In use, the utility model first penetrates the first optical cable 2 in first sheath 1 when carrying out the connector of optical cable, it will Second optical cable 9 penetrates in the second sheath 8, and in turn, the first sheath 1 is placed on the first half slot 22 of 4 side of connector box, benefit It is engaged with the second half slot 23 of 7 inside of the first upper cover, and keeps the first upper cover 7 and connector box 4 solid using the first bolt 3 It is fixed, similarly, the second sheath 8 is placed on the first half slot 22 of 4 other side of connector box, utilizes the of 10 inside of the second upper cover Two half slots 23 engage the second sheath 8, recycle the first bolt 3 by the second upper cover 10 and 4 company of being fixed of connector box It connects, then 2 He of the first optical cable by the inner end of the first optical cable 2 and the second optical cable 9 to 4 Inner elongate of connector box, inside connector box 4 Second optical cable, 9 surface all uses anchor ear 5 to lock, and then is socketed fiber optic protection casing 6 again, to the first optical cable 2 and the second optical cable 9 into Capable joint carries out joining process, after the completion of the first optical cable 2 and 9 connector of the second optical cable are handled, top cover 13 is closed, will be pushed up The limiting slot 21 of 13 inside of lid and 16 snap-fit of rectangular positive stop strip of 4 upper end of connector box recycle the first sealing strip 19 in turn With the second sealing strip 20, processing is sealed to its interface, and then since connector box 4 and top cover 13 are all aluminum alloy material system It makes, even if the joint of the first optical cable 2 and the second optical cable 9 occurs phenomenon on fire, sets off an explosion, will not directly damage connector box 4 and top cover 13, itself has good intensity, and can not explode damage easily, and anchor ear 5 is to the first optical cable 2 and the second optical cable 9 Outside be locked, be capable of maximum limit compacting optical cable it is on fire when flare extension, and the first sheath 1 and the second shield The inside of set 8 is all provided with flame-retardant layer 18, carry out when can be on fire to optical cable it is good fire-retardant, in turn, before being laid with optical cable, The sealing-plug 15 inside air inlet 14 and gas outlet 12 is first opened, by being filled with nitrogen inside 14 casees connector boxs of air inlet 4, constantly By re-closed gas outlet 12 after the air discharge inside connector box 4, then it is constantly filled with nitrogen, it is close full of being recycled after connector box 4 Blocking 15 closes air inlet 14, and nitrogen does not have combustion-supporting property, can prevent the generation of fire.

Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.

Claims (7)

1. a kind of explosion prevention function duct optical cable connector box characterized by comprising the first optical cable and the second optical cable are in connector box Portion's connection, and be pierced by respectively from both ends, it is arranged the first sheath outside the first optical cable, the second sheath is arranged outside the second optical cable, is connect Top cover is installed in sealing at the top of head cartridge, air inlet and air outlet is arranged on top cover, air inlet and air outlet are stoppered with sealing-plug；Connector Nitrogen is filled with inside box.

2. explosion prevention function duct optical cable connector box as described in claim 1, which is characterized in that the first optical cable and the second optical cable exist Fiber boot pipe is arranged outside connector box internal connection.

3. explosion prevention function duct optical cable connector box as described in claim 1, which is characterized in that connector box side-glance shape is convex Structure, the side upper surface that connector box is pierced by the first optical cable are bolted the first upper cover of installation, and connector box is pierced by the second light The side upper surface of cable is bolted the second upper cover of installation, and connector box middle top surface is bolted installation top cover.

4. explosion prevention function duct optical cable connector box as described in claim 1, which is characterized in that the upper surface of connector box two sides is each It is provided with the first half slot, the lower end surface of the first upper cover and the second upper cover is all provided with the second half slot, the first sheath and second Sheath is all placed in the circular channel that the first half slot and the second half slot are formed.

5. explosion prevention function duct optical cable connector box as described in claim 1, which is characterized in that the first optical cable inside connector box With an anchor ear is respectively installed on the second optical cable, anchor ear is located at the first optical cable and the second optical cable and connector box junction.

6. explosion prevention function duct optical cable connector box as described in claim 1, which is characterized in that four Bian Shangan of connector box upper surface Equipped with rectangular positive stop strip, it is provided with limiting slot engaged therewith on the inside of top cover, it is close to be equipped with first on the top cover on the inside of limiting slot Strip of paper used for sealing is equipped with the second sealing strip on the top cover on the outside of limiting slot.

7. explosion prevention function duct optical cable connector box as described in claim 1, which is characterized in that the first sheath and the first optical cable it Between set gradually from inside to outside flame-retardant layer and shield lines, set gradually flame-retardant layer from inside to outside between the second sheath and the second optical cable With shield lines.