CN204719285U - A kind of light splitting fiber distribution box - Google Patents

Abstract

The utility model provides a splitting fiber box, which belongs to the technical field of machinery. It solves the problem of poor light splitting effect of the existing splitting fiber box. The fiber splitting box includes a box body and a box cover detachably installed on the box body. The box body and the box cover are surrounded to form an accommodation cavity. At least one splice box is installed on the box body, and a channel for the optical cable to pass through is opened on the box body. The channel is located on the side of the splice tray. The utility model has the advantage of good light splitting effect.

Description

A splitting fiber box

technical field

The utility model belongs to the technical field of machinery, and relates to a fiber splitting box, in particular to a fiber splitting box used for fiber splitting on optical fiber lines.

Background technique

In the FTTH (fiber-to-the-home) system, most of the wiring distribution equipment of the user terminal adopts the optical cable distribution box, but the fiber distribution box is often used for the terminal to distribute the optical fiber function, and the installation position is fixed. The splitting fiber box can meet the needs of different scenarios such as primary splitting or secondary splitting. It is small in size and suitable for a variety of usage scenarios such as indoors and corridors.

The fiber splitting box can be used for fiber splitting on the optical fiber line, complete the branching and management without cutting the optical cable, take out the required optical fibers from one optical cable, and realize the functions of optical fiber fusion, distribution and scheduling, etc. Avoid cutting all the cables and splicing them again.

In the prior art, there are many kinds of splitting and fiber-splitting boxes, and the structural shapes are various, and the use effect of the optical fiber after splitting is also uneven. Therefore, the utility model has designed a fiber-splitting effect that is good and can perform a variety of splitting. The splitting fiber box of the way.

To sum up, in order to solve the structural deficiencies of the existing splitting fiber box, it is necessary to design a splitting fiber box with reasonable design and good splitting effect.

Contents of the invention

The purpose of the utility model is to propose a light-splitting fiber box with reasonable design and good light-splitting effect in view of the above-mentioned problems in the existing technology.

The purpose of the utility model can be achieved through the following technical proposals: a light splitting fiber box, including a box body and a box cover detachably installed on the box body, the box body and the box cover are enclosed to form an accommodating cavity, There is a fusion splice tray fixedly connected with the box body in the cavity, at least one insert box is installed on the fusion splice tray, and a passage for the optical cable to pass through is opened on the box body. The passage is located on one side of the fusion splice tray, and the optical cable After the optical fiber in the splicing tray is fused, it is split through the insert box.

In the above-mentioned optical fiber distribution box, first notches corresponding to the channels are respectively opened at both ends of the box body, and second notches corresponding to the first notches are respectively opened at both ends of the box cover, and the second notch at the same end A notch and a second notch enclose the entrance or exit of the passage, and a plurality of support blocks are arranged in the passage, and each support block is fixed with a plurality of uniformly distributed protrusions.

In the above-mentioned optical fiber splitting box, the fusion splicing tray includes a tray body, a winding slot is opened in the tray body, and a fastening component is arranged in the winding slot, and the fastening component is fixed with at least one hot-melt Tube.

In the above-mentioned optical splitting fiber box, the clamping assembly includes two rows of symmetrically arranged and evenly distributed clamping plates, two opposing clamping plates in the two rows of clamping plates form a group, and two adjacent sets of clamping plates A hot melt tube can be clamped between them.

In the above-mentioned optical splitting box, there are also two winding columns symmetrically arranged in the disk body, and an annular baffle plate fixedly connected with the disk body is arranged around the two winding columns, and the annular baffle plate and the two winding columns The above-mentioned winding groove is formed by enclosing it, and the ring-shaped baffle and the peripheral side wall of the disc body are surrounded to form a winding path, and the winding path is arranged around the winding groove.

In the above-mentioned optical splitting box, a fiber inlet is opened on the side wall of the tray body facing the optical cable, and a fiber outlet is opened on the side wall of the annular baffle away from the optical cable, and the optical fiber passes through the fiber inlet, The winding path and the fiber outlet enter the winding groove and are connected with the hot-melt pipe.

In the above-mentioned optical fiber distribution box, a connection seat is fixed at one end of the tray body, and at least one pigtail is installed on the connection seat. One end of the pigtail is connected to the connection seat through a connector, and the other end enters through the fiber outlet. The winding groove is connected with the heat fusion pipe, and the heat fusion pipe is used for fusion splicing the optical fiber and the pigtail.

In the above-mentioned optical splitting box, each winding post is fixed with a number of first lugs distributed around the corresponding winding post, and a number of second lugs are fixed on the annular baffle. A number of third lugs are fixed on the peripheral side wall of the body, and each lug is arranged horizontally.

In the above-mentioned splitting fiber box, the card box includes a body and a cover plate fastened on the body, and a positioning plate and two windings arranged symmetrically on one side of the positioning plate are fixed in the body. The line block, the positioning plate and the inner side wall of the body form a strip-shaped area, and an optical splitter for splitting the optical fiber is limited in the strip-shaped area. The inner card has an inherent input adapter head, and a plurality of installation slots are opened on the end of the body away from the connection seat, and at least one output adapter head can be fastened in each installation slot.

In the above-mentioned fiber splitting box, several fourth lugs are fixed on each winding block, and several fifth lugs are fixedly connected in the body, and each lug is arranged horizontally.

In the above-mentioned optical fiber splitting box, a disk cover is fastened on the disk body, a number of first buckles are fixed on the disk cover, and a one-to-one correspondence with the first buckles is fixed on the bottom of the body. Second snap.

In the above-mentioned optical fiber distribution box, a row of evenly distributed snap-in units is provided at the end of the box body away from the connection seat, and each snap-in unit includes two snap-in blocks arranged oppositely and the two snap-in blocks are surrounded to form Snap slot.

In the above-mentioned optical fiber distribution box, a row of first arc-shaped notches is provided on the side wall of the box body away from the end of the connecting seat, and a row of first arc-shaped notches corresponding to the row of first arc-shaped notches is provided on the cover. The second arc-shaped notch, when the box cover is installed on the box body, each first arc-shaped notch is surrounded by the corresponding second arc-shaped notch to form a through hole, and each through hole corresponds to each clamping groove one by one.

In the above-mentioned optical splitter box, each winding post is fixed with a first clamping block, and two first clamping holes corresponding to the two first clamping blocks are opened on the disk cover, and each Second clamping blocks are fixed on the winding blocks, and two second clamping holes corresponding to the two second clamping blocks are opened on the cover plate.

In the above-mentioned optical fiber splitting box, several positioning blocks arranged around the splice tray are also fixed on the box body.

In the above-mentioned optical splitter box, connecting holes are respectively opened on both sides of the box cover, and two connecting grooves corresponding to the two connecting holes are opened on the box body, and a mounting hole is opened on one side of each connecting groove .

Compared with the prior art, the utility model has a reasonable design and is easy to operate; the setting of the fusion splice plate facilitates the welding work of the optical fiber; Good practicality.

Description of drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the utility model.

Fig. 2 is a schematic diagram of the structure of Fig. 1 after removing the box cover.

Fig. 3 is a schematic diagram of the structure of Fig. 2 after removing the cover plate.

Fig. 4 is a schematic diagram of the structure of Fig. 2 after removing the insert box.

FIG. 5 is a partial structural schematic diagram of FIG. 4 .

Fig. 6 is a partial structural diagram of the insert box in a preferred embodiment of the present invention.

FIG. 7 is a structural schematic diagram of another viewing angle of FIG. 6 .

In the figure, 10. Box body; 11. Channel; 12. Support block; 121. Protrusion; 13. Clamping block; 14. Clamping groove; 15. Through hole; 16. Positioning block; , installation hole; 20, box cover; 21, connection hole; 31, disk body; 311, fiber inlet; 312, third lug; 32, disk cover; 321, first buckle; 322, first card hole ; 33, winding column; 331, the first block; 332, the first lug; 34, the ring baffle; 341, the fiber outlet; 342, the second lug; 35, the winding slot; 36, winding 37, clamping plate; 41, body; 411, second buckle; 412, fifth lug; 413, slot; 414, installation slot; 42, cover plate; 422, second clamping hole; 43, winding Line block; 431, second block; 432, fourth lug; 44, positioning plate; 50, hot-melt tube; 60, connecting seat; 70, optical splitter; 71, input adapter head; 72, output adapter head; 80, optical cable; 90, pigtail; 91, connector.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Fig. 1 to Fig. 5, the optical splitting box includes a box body 10 and a box cover 20 detachably installed on the box body 10, the box body 10 and the box cover 20 are surrounded to form an accommodating cavity, and in the accommodating cavity There is a fusion splice tray fixedly connected to the box body 10, at least one insert box is installed on the fusion splice tray, preferably the insert box is fastened on the fusion splice tray, and a passage for the optical cable 80 to pass through is provided on the box body 10 11. The channel 11 is located on one side of the splice tray, and the optical fibers in the optical cable 80 are fused in the splice tray and split through the cassette.

The application of optical fiber in daily life is more and more extensive. When in use, the optical fiber splitting box is often used to cut out the optical fiber, and the functions of fusion splicing, distribution and scheduling of the optical fiber can be realized without damaging the optical fiber cable 80.

The utility model designs a light-splitting and fiber-splitting box. The bottom of the box body 10 has a flat design, which can directly strip the laid optical cable 80 longitudinally and carry out digging work without affecting the normal operation of the optical cable 80. After the optical fiber is stripped from the optical cable 80, it enters the splicing tray to complete the splicing work, and then splits the light through the insert box, which is easy to operate and has a good splitting effect.

As shown in Figures 1 and 5, preferably, first notches corresponding to the channel 11 are respectively provided at both ends of the box body 10, and second notches corresponding to the first notches are respectively provided at both ends of the box cover 20. , the first gap and the second gap at the same end form the entrance or exit of the above-mentioned passage 11, and a plurality of support blocks 12 are arranged in the passage 11, and each support block 12 is fixed with a plurality of uniformly distributed protrusions 121 .

The first notch and the second notch at the same end form the entrance or exit of the channel 11 when the cover 20 is installed on the box body 10. This design is convenient for opening the entrance or exit of the channel 11 and is easy to manufacture. During actual work, in fact, the box body 10 and the optical cable 80 are connected together first. After all the work is completed, the box cover 20 is installed on the box body 10. Therefore, the design of the first gap and the second gap is also convenient for the optical cable 80 to be connected. Inserted in the channel 11, the fiber optic cable 80 that has been laid can be directly pulled out and spliced, which facilitates the digging and splicing work, does not need to cut the fiber optic cable 80, and will not cause other effects on the fiber optic cable 80.

The design of the support block 12 is to provide a support for the optical cable 80 located in the box body 10. In this embodiment, in view of the size and structure of the box body 10, the number of support blocks 12 is preferably two, and the two support blocks The blocks 12 are arranged close to the entrance and exit of the channel 11 respectively, and the stripping place of the optical cable 80 is located between the two support blocks 12, so that unnecessary influence can be avoided. The setting of the protrusion 121 can have a certain anti-skid and stabilizing effect on the optical cable 80, so as to avoid the phenomenon that the optical cable 80 is loosened due to external influences and the optical fiber is damaged.

As shown in Fig. 4 and Fig. 5, preferably, the fusion splicing tray includes a disc body 31, and a winding slot 35 is opened in the disc body 31, and a fastening assembly is arranged in the winding slot 35, and the fastening assembly is fastened with at least one Hot melt pipe 50.

When digging and connecting, the optical fiber generally has a certain length, and can be coiled in the winding groove 35 at this moment. The fusion splicing of optical fibers is carried out in the heat-melt tube 50, and one heat-melt tube 50 is needed to weld one optical fiber. Therefore, a clamping component is provided, which can clamp multiple heat-melt tubes 50, which can meet the requirements of simultaneous fusion of multiple optical fibers. need.

Preferably, the clamping assembly includes two rows of symmetrically arranged and evenly distributed clamping plates 37, two opposite clamping plates 37 in the two rows of clamping plates 37 form a group, and one of the adjacent two sets of clamping plates 37 can be clamped Hot melt pipe 50.

The two opposite clamping plates 37 are arranged on the same straight line, and the opposite ends of the two clamping plates 37 are slightly bent toward one side, and are made of soft material with certain elasticity. Therefore, the hot-melt pipe 50 is firmly fixed between two adjacent groups of clamping plates 37 (ie, four clamping plates 37 ), and the clamping effect is good.

In this embodiment, in view of the structure and size of the disc body 31 , the number of clamping plates 37 is preferably four, which can clamp one heat-melt tube 50 . Of course, as long as the structure and size of the disc body 31 allow, more clamping plates 37 can be provided to clamp multiple heat-melt tubes 50 and splice multiple optical fibers.

It is worth mentioning that the fastening assembly can also be directly arranged as a row of strip-shaped plates distributed at equal intervals, and a heat-melt pipe 50 is fastened between two adjacent strip-shaped plates. In this embodiment, the former one is preferred. kind of scheme.

Further preferably, two winding posts 33 are arranged symmetrically in the disk body 31, and an annular baffle 34 fixedly connected with the disk body 31 is arranged around the two winding posts 33, and the annular baffle 34 is surrounded by the two winding posts 33 The above-mentioned wire winding slot 35 is formed, and the annular baffle 34 and the peripheral side wall of the disc body 31 encircle to form a wire winding channel 36 , and the wire winding channel 36 is arranged around the wire winding slot 35 .

Specifically, the optical fiber is coiled on the two winding columns 33 when the connection is made, and the winding path 36 is set to facilitate the entry of the optical fiber into the winding groove 35, which has a guiding effect, and the curved part of the winding path 36 is also provided with a certain bending curvature. Fiber loss due to excessive bending of the fiber can be avoided.

The clamping component can choose a suitable installation position, as long as the optical fiber does not bend too much, in this embodiment, the clamping component is arranged close to the annular baffle 34, and a hot melt can also be clamped between the clamping component and the annular baffle 34 Tube 50.

Further preferably, a fiber inlet 311 is provided on the side wall of the tray body 31 facing the optical cable 80, and a fiber outlet 341 is provided on the side wall of the annular baffle 34 away from the optical cable 80, and the optical fiber passes through the fiber inlet 311, The winding path 36 and the fiber outlet 341 enter the winding groove 35 and are connected with the heat-melt pipe 50 .

The fiber inlet 311 is set towards the stripping part of the optical cable 80. After the optical fiber is stripped from the optical cable 80, it enters the winding path 36 through the fiber inlet 311, then enters the winding groove 35 through the fiber outlet 341, and finally enters the thermal fusion The tube 50 and the excess length of optical fiber can be coiled on the two winding posts 33 . Wherein, the fastening component is arranged opposite to the fiber outlet 341 .

Further preferably, one end of the disc body 31 is clamped with a fixed connection seat 60, and at least one pigtail 90 is installed on the connection seat 60. One end of the pigtail 90 is connected to the connection seat 60 through a connector 91, and the other end is connected to the connection seat 60 by a fiber outlet 341. Enter the winding groove 35 and connect with the thermal fusion pipe 50 , the thermal fusion pipe 50 is used for fusion splicing the optical fiber and the pigtail 90 .

The pigtail 90 enters the winding groove 35 from the fiber outlet 341 , and enters the heat-melt tube 50 to be welded with the optical fiber. The pigtail 90 of excess length can also be coiled on the two winding posts 33 . The connector 91 on the pigtail 90 is installed on the connector base 60, and the optical fiber can be connected with the card box through the connector 91, so as to realize the light splitting function of the optical fiber.

The connection seat 60 is provided with a plurality of slots for installing the connector 91, that is, a plurality of pigtails 90 can be installed, that is to say, multiple optical fibers can be welded, the optical fiber, the pigtail 90, the connector 91 and the heat-melt tube 50 one by one. correspond. In this embodiment, the number of slots is preferably two, at most two optical fibers can be spliced, and the number of pigtails 90, connectors 91 and heat-melt tubes 50 can be determined according to the number of optical fibers to be fused. If the structure and size of the box body 10 and the tray body 31 allow, more slots can be provided, a plurality of pigtails 90 can be installed, and multiple optical fibers can be fused.

The coiling of the optical fiber and the pigtail 90 shown in FIG. 5 is just an example, and the specific coiling can be determined according to actual usage conditions.

Preferably, each winding post 33 is fixed with a plurality of first lugs 332 distributed around the corresponding winding post 33 , and a plurality of second lugs 342 are fixed on the annular baffle 34 . A plurality of third lugs 312 are fixed on the peripheral side wall of 31, and each lug is arranged horizontally.

Each first lug 332 extends outwards from the winding column 33, a part of the second lug 342 extends toward the winding groove 35, a part extends toward the winding path 36, and each third lug 312 extends toward the winding groove 35. Wireway 36 extends, and such structural design can form a barrier above winding groove 35 and winding path 36, prevents optical fiber, pigtail 90 from spreading out in winding groove 35 or winding path 36, avoids optical fiber and other The working parts are entangled, affecting normal work.

As shown in Figure 2, Figure 3 and Figure 6, further preferably, the card box includes a body 41 and a cover plate 42 fastened on the body 41, and a positioning plate 44 is fixed in the body 41 and arranged on the positioning plate 44 and two winding blocks 43 arranged symmetrically on one side, the positioning plate 44 and the inner side wall of the body 41 are surrounded to form a strip-shaped area, and an optical splitter 70 for splitting the optical fiber is limited in the strip-shaped area. One end of the connection base 60 is provided with a card slot 413, and the fixed input adapter head 71 is fixed in the card slot 413, and a plurality of installation slots 414 are provided at the end of the body 41 away from the connection base 60, and each installation slot 414 can be fixed At least one output adapter head 72 .

The working principle of the cassette is to divide one or two optical fibers into multiple optical fibers, and the optical splitter 70 realizes the splitting of the optical fibers. One end of the optical splitter 70 is connected to one or two optical fibers, and the other end outputs multiple optical fibers.

In the present embodiment, the splitting mode of one-to-eight is preferred for the cassette, that is, the number of input adapter heads 71 is one, the number of output adapter heads 72 is eight, correspondingly, the number of card slots 413 is one, and the number of installation slots The number of 414 is four, and two output adapter heads 72 are stacked and installed in each installation slot 414 . The input adapter head 71 is connected to the connection head 91, and the setting of the connection seat 60 also facilitates the connection of the two.

The optical splitter 70 here is a miniature optical splitter, which can be fixed in the strip area to maintain stability. The optical splitter 70 is connected to each adapter head through an optical fiber, and the redundant optical fiber can be coiled on the two winding blocks 43 .

In the existing cassette for optical fiber splitting, if the one-to-eight split mode is adopted, the number of output adapter heads 72 is nine; if the one-to-four split mode is adopted, the number of output adapter heads 72 is five . In this embodiment, eight output adapter heads 72 are used for the one-to-eight splitting mode, which can reduce the attenuation loss of the optical fiber to a certain extent, and is beneficial to the use of the optical fiber.

Preferably, a plurality of fourth lugs 432 are fixed on each winding block 43 , and a plurality of fifth lugs 412 are fixed in the body 41 , and each lug is arranged horizontally.

Each fourth lug 432, each fifth lug 412 has the same function as the above-mentioned first lug 332, second lug 342 and third lug 312, forming a barrier to prevent the optical fiber from escaping from the main body 41, and Avoid fiber optic entanglement with other working parts, affecting normal work.

As shown in FIGS. 4 and 7 , further preferably, a disc cover 32 is fastened on the disc body 31, a plurality of first buckles 321 are fixed on the disc cover 32, and a plurality of first buckles 321 are fixed on the bottom of the body 41. The first buckles 321 are in one-to-one correspondence with the second buckles 411 .

The insert box is fixed on the fusion splice tray through the cooperation of each first buckle 321 and each second buckle 411, which is convenient for disassembly and replacement. Here, the number of each buckle is preferably four.

The setting of the disc cover 32 facilitates the setting of the first buckle 321, and facilitates the fastening of the insert box on the welding disc. In addition, the setting of the above-mentioned disc cover 32 and the cover plate 42 makes the parts in the disc body 31 and the body 41 not affected. outside influences.

As shown in Figures 2 to 5, preferably, at the end of the box body 10 away from the connection seat 60, there is a row of evenly distributed snap-in units, each snap-in unit includes two snap-in blocks 13 oppositely arranged and two snap-in blocks 13 The connecting block 13 encloses and forms a locking groove 14 .

Further preferably, a row of first arc-shaped notches is provided on the side wall of the box body 10 away from the end of the connecting seat 60, and a row of second arc-shaped notches corresponding to the row of first arc-shaped notches is provided on the box cover 20. Notches, when the box cover 20 is installed on the box body 10 , each first arc-shaped notch is surrounded by the corresponding second arc-shaped notch to form a through hole 15 , and each through hole 15 corresponds to each engaging groove 14 one by one.

In this embodiment, the number of clamping units is preferably eight, and the number of clamping slots 14 is also eight, and each clamping slot 14 corresponds to one output adapter head 72 . Wherein, each output adapter head 72 all corresponds to an auxiliary adapter head, and an optical fiber is connected to each auxiliary adapter head, and the optical fiber is all clamped in the corresponding clamping groove 14. In addition, each through hole 15 is connected with each clamping The slots 14 are in one-to-one correspondence, so the optical fibers protrude out of the box body 10 through the corresponding through holes 15 after passing through the corresponding snap-in slots 14 , and are neatly arranged and beautiful in appearance.

The setting of the first arc-shaped notch and the second arc-shaped notch here is similar to the above-mentioned first notch and the second notch, which is convenient for opening the through hole 15 and convenient for manufacture.

In the above-mentioned splitting mode of one-to-eight, one optical fiber is stripped from the optical cable 80, welded with a pigtail 90, and then connected to the input adapter head 71 in the card box through the connector 91, and the card box connects one channel to the input adapter head 71. The optical fiber is divided into eight optical fibers, and the eight optical fibers extend out of the box body 10 through corresponding through holes 15 respectively.

In addition, of course, the card box can also be divided into four or two optical splitting modes, that is, one optical fiber is divided into four or two optical fibers, which can be selected according to actual use requirements. In view of the split optical fiber and card connection The slots 14 and the through holes 15 are in one-to-one correspondence, and the number of optical fibers after splitting only needs not to exceed the number of the clamping slots 14 or the through holes 15 .

As shown in FIGS. 2 to 5 , further preferably, each winding post 33 is fixed with a first block 331 , and two second blocks 331 corresponding to the two first blocks 331 are provided on the disc cover 32 . A clamping hole 322 , a second clamping block 431 is fixed on each winding block 43 , and two second clamping holes 422 corresponding to the two second clamping blocks 431 are opened on the cover plate 42 .

The disc cover 32 is buckled on the disc body 31 through the cooperation between the first clamping block 331 and the first clamping hole 322 . On the body 41, the connection is firm and the assembly and disassembly are convenient, which is convenient for the operator to check and maintain.

Preferably, a plurality of positioning blocks 16 arranged around the fusing tray are also fixed on the box body 10 . The setting of the positioning block 16 is to ensure that the fusion splice tray is firmly in the box body 10 and is not easy to loosen. The number of positioning blocks 16 can be determined according to actual usage conditions.

It is worth mentioning that screws connected to the disc body 31 are installed in each winding post 33, and the disc body 31 is fixedly connected with the box body 10 by two screws, the connection is more firm, and the setting of the screws is convenient for disassembly and replacement.

As shown in Figures 1 and 4, preferably, connecting holes 21 are respectively provided on both sides of the box cover 20, and two connecting grooves 17 corresponding to the two connecting holes 21 are provided on the box body 10, and each connecting groove 17 Mounting holes 18 are opened on one side.

The box cover 20 and the box body 10 are connected by bolts, the connection is firm and easy to assemble and disassemble, and the setting of the connecting hole 21 and the connecting groove 17 facilitates the installation of the bolts. Screws can also be installed in the mounting holes 18, so that the whole splitting fiber box is conveniently installed on walls, corridors and other places.

In the initial state of the fiber splitting box, the box body 10 is connected to the optical cable 80, and the optical fiber is stripped out from the optical cable 80. The chip box realizes the light splitting function. The whole light splitting fiber box is easy to operate and can adopt a variety of light splitting modes. It has good practicability and good optical fiber light splitting effect.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (10)

1. a light splitting fiber distribution box, the lid comprising box body and be detachably arranged on box body, described box body and lid surround formation accommodating cavity, it is characterized in that, in accommodating cavity, be provided with the fusion joining disk be connected with box body, fusion joining disk is provided with at least one insert box, box body runs through the passage offering and pass for optical cable, described passage is positioned at fusion joining disk side, and the optical fiber in optical cable carries out light splitting by insert box after welding in fusion joining disk.

2. a kind of light splitting fiber distribution box according to claim 1, it is characterized in that, described fusion joining disk comprises disk body, in disk body, offer winding slot, in winding slot, be provided with card fixing component, and described card fixing component fixes at least one tempreature bulb.

3. a kind of light splitting fiber distribution box according to claim 2, is characterized in that, described card fixing component comprises two row and is symmetrical arranged and equally distributed clamp, and two clamps relative in two row clamps are one group, can fix a tempreature bulb between two groups of adjacent clamps.

4. a kind of light splitting fiber distribution box according to Claims 2 or 3, it is characterized in that, two wrapping posts are also symmetrically arranged with in disk body, the ring baffle be connected with disk body is provided with around two wrapping posts, described ring baffle and two wrapping posts surround and form above-mentioned winding slot and all sidewalls of ring baffle and disk body surround and form coiling road, and described coiling road is arranged around winding slot.

5. a kind of light splitting fiber distribution box according to claim 4, it is characterized in that, the sidewall facing optical cable at disk body offer into fine mouth, the sidewall of ring baffle away from optical cable offers outlet, and optical fiber passes through enter winding slot into fine mouth, coiling road, outlet and be connected with tempreature bulb successively.

6. a kind of light splitting fiber distribution box according to claim 5, it is characterized in that, fix in disk body one end and have Connection Block, Connection Block is provided with at least one tail optical fiber, one end of tail optical fiber is connected with Connection Block by connector, the other end enters winding slot by outlet and is connected with tempreature bulb, and described tempreature bulb is used for welding optic fibre and tail optical fiber.

7. a kind of light splitting fiber distribution box according to claim 6, it is characterized in that, described insert box comprises body and is fastened on the cover plate on body, in body, be installed with location-plate and divide and be listed in location-plate side and symmetrically arranged two coiling blocks, described location-plate and body madial wall surround formation strip region, spacing in strip region have for the optical branching device to optical fibre light splitting, draw-in groove is offered near one end of Connection Block at body, fix in draw-in groove and have input adapter head, some mounting grooves are offered away from one end of Connection Block at body, at least one o adapter head all can be fixed in each mounting groove.

8. a kind of light splitting fiber distribution box according to claim 7, it is characterized in that, offer the equally distributed clamping unit of row at box body away from one end of Connection Block, each clamping unit includes two clamping blocks that are oppositely arranged and two clamping blocks surround formation buckling groove.

9. a kind of light splitting fiber distribution box according to claim 8, it is characterized in that, the sidewall of box body away from Connection Block one end offers row first arc notch, lid offers and this row first arc notch row second arc notch one to one, when lid is arranged on box body, each first arc notch all surrounds formation through hole with the second corresponding arc notch, each through hole and each buckling groove one_to_one corresponding.

10. a kind of light splitting fiber distribution box according to claim 1, is characterized in that, offer connecting hole respectively in lid both sides, and box body offers two link slots that arrange corresponding to two connecting holes, and each link slot side all offers mounting hole.