CN2062061U - Open type comprehensive fibre cable connection box - Google Patents

Abstract

The utility model discloses an open type comprehensive optical cable connection box relating to a comprehensive optical cable connection box for railway communication. A box bottom and a box cover are buckled to form the open type comprehensive optical cable connection box. A sealing rubber strip and a rubber belt are used for the seal between the box bottom and the box cover. An optical fiber accommodating disc and a loading coil box are arranged in the box. Both ends of the box bottom are provided with an inner cable clip and an outer cable clip. The bottom surface of the box bottom is provided with a tail cable hole and a tail cable clip. A ground line terminal and an air valve are arranged on the box cover. The utility model can be conveniently installed and opened. An optical cable can be firmly fixed. The connecting technology of a comprehensive optical cable can be simplified. A great deal of rare metal material can be saved. The utility model is especially suitable for being used as a connection box for various comprehensive optical cables.

Description

Open type comprehensive fibre cable connection box

The utility model relates to a kind of complex cable connector box that is used to protect railway combined optical cable joint and loading coil box is installed.

Extensively adopt comprehensive optical cable at present in the communication of railway long distance line, be called for short complex cable, it had both comprised low frequency line group and high-frequency line group, also comprised fiber unit.The basic structure of complex cable is to add aluminum pipe sheath (add steel band or do not add steel band) at cable core, adds pe sheath.The protection of complex cable joint (comprising that fibre-optical splice and the right loading of low frequency line continue) is the important ring in the complex cable construction, in the prior art lead sleeve tin soldering encapsulation gas-filled protective is adopted in the protection of complex cable joint more.Lead sleeve tin soldering processes are a traditional technology, use extensivelyr, but the technical matters that exists is a lot of.At first, lead sleeve itself is poisonous, and more volatile toxicity after the heating also will volatilize toxic ingredient (wherein outstanding with cadmium) after the solvent-free scolding tin heating; Be not fusion between lead sheath and the scolding tin, but bonding, so weld bond easily comes off, cause gas leakage; Soldering processes are complicated and difficult, and will consume a large amount of Rare Metals Materials.Next, the maintenance of fiber cable joint extremely bothers, in case the joint needs to handle, wants the unsolder lead sleeve earlier, and welding encapsulation again again is not only time-consuming but also require great effort after the processing.In addition, not only complexity but also insecure of the fixed sturcture of optical cable in the lead sleeve, the big and line of loading coil box volume is to few.

Order of the present utility model is a kind of simple in structure, encapsulation of design and opens complex cable connector box convenient, the optical cable fixation.

To achieve these goals, at the bottom of the utility model utilizes standard fasteners with box and lid firmly snap together, between adopt sealing joint strip or adhesive tape positiver sealing, thereby constitute a kind of openable connector box; Simultaneously, design is a kind of can prevent effectively that optical cable from sliding or the cable card of rotation is fixed optical cable.Be described in further detail below in conjunction with the technical characterictic of specific embodiment the utility model opening-type comprehensive cable splice closure.

Accompanying drawing 1 is the structural representation of opening-type comprehensive cable splice closure;

Accompanying drawing 2 is the vertical view at the bottom of the box;

Accompanying drawing 3 and accompanying drawing 4 are respectively the structural representation of inner cable card and outer cable card;

Accompanying drawing 5 is the structural representation of optical fiber storing tray;

Accompanying drawing 6 is the structural representation of loading coil box;

Accompanying drawing 7 and accompanying drawing 8 are respectively the front elevation and the upward view of stern fast card.

With reference to figure 1,2, the utility model opening-type comprehensive cable splice closure mainly by at the bottom of the box 1, lid 2 and the optical fiber storing tray 3 and the loading coil box 4 that are mounted in the box constitute.At the bottom of the box 1 and lid 2 are recessed boxes of rectangle by the aluminium alloy casting moulding, have on the box wall at recessed box two ends and work in coordination circular more than one and be used to introduce the semicircle cable groove of complex cable 5,1 is fastening with lid 2 mutual fastenings and employing standard fasteners at the bottom of the box, adopts sealing joint strip 6 positiver sealings between the two.An inner cable card 7 that is used for fixing optical cable respectively is equipped with in cable groove inboard, 1 two ends at the bottom of the box, catch 8 and outer catch 9 in being set with on the optical cable aluminum pipe sheath in the inner cable card outside, be tied with sealant tape 10 on the optical cable aluminum pipe sheath between the inside and outside catch, the outer cable card 11 that is used for fixing optical cable is equipped with in outer catch 9 outsides, also is tied with adhesive waterproof tape 12 and hot plastic sleeve pipe on the optical cable in the outer cable card outside.A 1 interior side or central authorities are mounted with more than one loading coil box 4 at the bottom of the box, opposite side is mounted with optical fiber storing tray 3, one group of pin 13 and pressing plate 14 that is used for fixing optical cable reinforcement steel strand wires respectively is equipped with at 1 interior side two ends at the bottom of the box, and two ends, 1 bottom surface have more than one stern rope fairlead 30 and the stern fast card that is used for fixing stern fast is housed at the bottom of the box.One ground wire terminal 15 and a valve nozzle 16 that is used for charging into dry air in box are housed on the lid 2.

With reference to figure 3 and Fig. 4, inner cable card 7 and outer cable card 11 are formed by two identical semicircle hoops, by screw 17 and screw 18 be fastened on the aluminum pipe sheath of optical cable 5 and the pe sheath respectively and be fixed on box at the bottom of on 1.Be evenly distributed with the bur 20 that can thrust more than 4 in the aluminum pipe sheath on the inwall of the circular boop 19 of inner cable card 7, be evenly distributed with penetrable pe sheath more than 4 on the circular boop 21 of outer cable card 11 and thrust jackscrew 22 in the steel band.Inner cable card and outer cable card also can make aluminum pipe sheath and steel band by the box body reliable ground except that can preventing the optical cable rotation effectively or sliding.

With reference to figure 5, optical fiber storing tray 3 is rectangle half box, and two ends respectively have a side of a mounting hole 23, half boxes to be equipped with in spring bearer plate 24, half boxes that are used for fixing fibre-optical splice the clamp 25 that is used for fixing optical fiber more than 4 is housed.Each optical fiber storing tray can be accommodated the good fibre-optical splice of 2-3 root welding simultaneously, and the bending radius of optical fiber in the optical fiber storing tray should and not have added losses more than or equal to 40mm.Plural optical fiber storing tray is superimposed together and is twisted together into the books shape with the soft hinge 26 of sheepskin with steel wire axle 27, and the mounting hole 23 by two ends is fixed at the bottom of the box side of 1.

With reference to figure 6, loading coil box 4 is the flat box of rectangle of upper end open, and the mounting hole 28 by its two ends, bottom is mounted at the bottom of the box side of 1, and plural pupin coil unit 29 is installed in the flat box, comprises 1-2 pupin coil in each pupin coil unit.

With reference to figure 2, fixedly the pin 13 and the pressing plate 14 of optical cable reinforcement steel strand wires are called " bolt hitching post " structure, steel strand wires are wrapped on one group of pin 13 also push down with pressing plate 14, and the friction self-locking power between steel strand wires and the pin can be fixed steel strand wires securely.

With reference to figure 7 and Fig. 8, stern rope fairlead 30 is oblique elliptical aperture, the stern fast card by about two stern fast folders 31 that have a semiellipse hole and the stern fast seat 33 that has oblique cable pipe 32 constitute.Stern fast folder 31 and stern fast seat 33 are fixed on the about both sides of 1 bottom surface at the bottom of the box respectively by bolt 34, stern fast 38 promptly enters at the bottom of the box in 1 by stern fast pipe 32, stern rope fairlead 30 and stern fast folder 31, adopt O-ring seal 35 sealings at the bottom of stern fast seat 33 and the box between 1 bottom surface, about two run-out cable clips 31 by screw 36 that stern fast 38 is fastening, the end appearance of stern fast pipe 32 have be sleeved on stern fast 38 on the screw thread that matches of fastening swivel nut 37.

The utility model is simple in structure, it is all very convenient to install and open, and the optical cable fixation is reliable, can greatly simplify cable connection technology and can save a large amount of Rare Metals Materials. Therefore, the utility model is particularly suitable for the connector box as various complex cables.

Claims (6)

1, a kind of opening-type comprehensive cable splice closure that is used to protect the comprehensive optical cable joint of railway communication and the low-frequency cable loading coil box is installed, it is characterized in that it be by at the bottom of the box, lid and the optical fiber storing tray and the loading coil box that are mounted in the box constitute, at the bottom of the box and lid be square recessed box by the aluminium alloy casting moulding, have the semicircle cable groove of working in coordination more than and being used to introduce complex cable on the box wall at recessed box two ends, snap together and adopt standard fasteners fastening with lid at the bottom of the box, between adopt sealing joint strip and rubber belt sealing; An inner cable card that is used for fixing optical cable respectively is equipped with in the inboard of both ends of the surface at the bottom of the described box, catch and outer catch in being set with on the optical cable aluminum pipe sheath of the inner cable card outside, be tied with sealant tape on the optical cable aluminum pipe sheath between the inside and outside catch, the outer cable card that is used for fixing optical cable is equipped with in the outer catch outside, be tied with adhesive waterproof tape and hot plastic sleeve pipe on the optical cable in the outer cable card outside, a side or central authorities are mounted with loading coil box at the bottom of the box, opposite side is mounted with the optical fiber storing tray, one group of pin and pressing plate that is used for fixing optical cable reinforcement steel strand wires respectively is equipped with at side two ends at the bottom of the box, the two ends, bottom surface have more than one stern rope fairlead and the stern fast card that is used for fixing stern fast are housed at the bottom of the box, and a ground wire terminal and a valve nozzle that is used for inflating in box are housed on the described lid.

2, opening-type comprehensive cable splice closure according to claim 1, it is characterized in that described inner cable card is two identical semicircle hoops, by screw be fastened on the optical cable aluminum pipe sheath and be mounted on box at the bottom of on, be evenly distributed with the bur that can thrust more than 4 in the optical cable aluminum pipe sheath on the inwall of circular boop.

3, opening-type comprehensive cable splice closure according to claim 1, it is characterized in that described outer cable card is two identical semicircle hoops, by screw be fastened on the optical cable pe sheath and be fixed in box at the bottom of on, be evenly distributed with penetrable optical cable pe sheath more than 4 on the circular boop and thrust jackscrew in the steel band.

4, opening-type comprehensive cable splice closure according to claim 1, it is characterized in that described optical fiber storing tray is rectangle half box, respectively there is a mounting hole at two ends, one side of half box is equipped with the spring bearer plate that is used for fixing fibre-optical splice, the clamp that is used for fixing optical fiber more than 4 is housed in the box, and plural optical fiber storing tray is twisted together into a side at the bottom of books shape and the mounting hole by two ends are mounted on box with soft hinge of sheepskin and steel axle.

5, opening-type comprehensive cable splice closure according to claim 1, it is characterized in that described loading coil box is the flat box of rectangle of upper end open, mounting hole by its two ends, bottom is mounted on the side at the bottom of the box, two above pupin coil unit are installed in the flat box, comprise 1-2 pupin coil in each pupin coil unit.

6, opening-type comprehensive cable splice closure according to claim 1, it is characterized in that described stern rope fairlead is an inclined hole, the stern fast card by about two stern fast folders that have a semiellipse hole and the stern fast seat that has oblique cable pipe constitute, about two run-out cable clips and stern fast seat be fixed on the about both sides of bottom surface at the bottom of the box respectively by bolt, stern fast is promptly by the stern fast pipe, during stern rope fairlead and stern fast folder enter at the bottom of the box, adopt the O-ring seal sealing at the bottom of stern fast seat and the box between the bottom surface, about two run-out cable clips by screw that stern fast is fastening, an end of stern fast pipe have be sleeved on stern fast on the screw thread that matches of fastening swivel nut.

Images