CN219496746U - Multifunctional light-splitting fiber-dividing box for FTTH or FTTR access - Google Patents

Abstract

The utility model discloses a multifunctional light-splitting fiber-dividing box for FTTH or FTTR access, and relates to the technical field of wired transmission equipment in an optical fiber communication network. The utility model comprises a main box body, wherein a beam splitting area, an uplink and cascade area and a downlink access area which are mutually separated are arranged in the main box body, wherein: the uplink and cascade area can realize the introduction, grounding fixation, storage and end formation of an uplink access cable and a cascade cable; the downlink access area can realize the lead-in fixation, grounding and on-site end formation and plug of a downlink lead-in optical cable; the optical splitter is arranged in the optical splitting area, and at least two rows of adapter assemblies are arranged between the optical splitting area and the uplink and cascade areas; at least two rows and four columns of adapter assemblies are arranged between the light splitting area and the downlink access area. The utility model can realize whole-course sharing on different network segments needed by the access link, and one box body is universal through different configuration modes, thereby meeting the construction requirements of different scenes.

Description

Multifunctional light-splitting fiber-dividing box for FTTH or FTTR access

Technical Field

The utility model relates to the technical field of wired transmission equipment in an optical fiber communication network, in particular to a box body for various light splitting and fiber splitting access for fiber to the home, which comprises a first access box, a middle cascade box body and a terminal access box.

Background

In 2009, three domestic operators are represented, and on the development process of broadband access of users, FTTH fiber to the home construction scale is pushed to a new height through continuous large-scale centralized purchasing for many years. The construction at this stage mainly depends on EPON technology, combines the equipartition beam splitter, adopts P2MP point to the access mode of multiple points, realize the coverage to numerous broadband users or potential users, the characteristic is that the infrastructure investment of earlier stage is too much, do not take into account the input-output effect too much, this stage does not solve the last kilometer access bandwidth and access speed problem of user finally. This phase is considered as the first phase of FTTH access.

After more than 10 years, since month 12 of 2019, the European Telecommunications Standards Institute (ETSI) established the F5G industry specification group (Industry Specification Group, ISG), further defining the fifth generation fixed network technology (ISG F5G), defining three major features of F5G: enhanced fixed broadband (eFBB), all-fiber connection (FFC), and Guaranteed Reliable Experience (GRE). F5G targets an all-optical network and represents technologies such as 10GPON, wi-Fi 6, 200G/400G, and the next generation OTN. With the technical support of F5G gigabit optical fiber, a new era of "extremely fast interconnection" and "optical networking" is forthcoming. Meanwhile, the F5G technology drives the generation-line evolution of the optical network, and provides a landing possibility for a plurality of emerging scenes, so that the human beings are pushed to the 'everything interconnection' age. In this context, the concepts of FTTH fiber to the home and FTTR fiber to the room are raised again, and the FTTH/R at this time is different from the FTTH concept more than ten years ago, so that the bandwidth and the access speed of the user access are more emphasized, and the connection experience of reliability is more emphasized, which is the second stage of FTTH access.

In order to meet the requirement of the second-stage fiber home access, various devices and boxes for access need to be planned and designed again, and the original large-core number mode of centralized light splitting by adopting a light splitting device is not suitable for scene construction. Especially when the broadband access of scattered users, edge users and rural remote users is faced, the brand-new optical-splitting fiber box with higher performance price ratio can better meet the market demand in consideration of input-output ratio.

Disclosure of Invention

In order to solve the problem that the existing optical fiber splitting box is not suitable for the construction requirements of the scene at the present stage, the utility model provides the multifunctional optical fiber splitting box for the FTTH or FTTR access, which can realize whole-course sharing on different network segments required by an access link, namely, head end access, middle cascade connection and terminal access, and is universal for one box body through different configuration modes, so that the construction requirements of different scenes are met.

The utility model provides the following technical scheme:

a multifunctional optical-splitting and fiber-dividing box for FTTH or FTTR access comprises

The main box body is internally provided with a light splitting area, an uplink and cascade area and a downlink access area which are mutually separated, wherein:

the uplink and cascade area can realize the introduction, grounding fixation, storage and end formation of an uplink access cable and a cascade cable;

the downlink access area can realize the lead-in fixation, grounding and on-site end formation and plug of a downlink lead-in optical cable;

the optical splitter is arranged in the optical splitting area, and at least two rows of adapter assemblies are arranged between the optical splitting area and the uplink and cascade areas; at least two rows and four columns of adapter assemblies are arranged between the light splitting area and the downlink access area.

Preferably, the box comprises a box door; the box door can be opened and closed to cover on the main box body, and the box door and the main box body are locked through the electronic lock or the locking device, so that the protection effect on components in the main box body can be achieved.

Preferably, the locking device comprises an elastic buckle arranged at the upper end and the lower end of the right side of the box door and a clamping groove arranged at the corresponding position of the main box body, and the box door and the main box body can be locked by fastening after the elastic buckle passes through the clamping groove, so that one-time locking of the box body is realized.

Preferably, the device also comprises a light splitting area cover plate and an uplink and cascade area cover plate which are respectively arranged at the tops of the light splitting area and the uplink and cascade area in an openable and closable manner, so that independent packaging of the light splitting area and the uplink and cascade areas is realized.

Preferably, a fixed bracket for installing the optical splitter and a tail fiber coiling and accommodating device are arranged in the light splitting area; a tail fiber coiling and accommodating device and an outer cable fixing and grounding device are arranged in the ascending and cascading areas; an outer cable fixing and grounding device is arranged in the downlink cascade region.

Preferably, the main box body is formed by injection molding of a nonmetallic composite material, a groove is formed in the opening of the main box body, and a one-time forming foaming sealing strip for improving the sealing performance of the main box body is arranged in the groove.

The utility model has the beneficial effects that: according to the utility model, through three large functional areas in the designed main box body and combining with the FTTH/R link construction requirement, one box body can meet the use requirements of a head end box, a middle cascade box and a terminal access box through different material configuration and combination. When the optical fiber cable is used as a head-end box, 4 single-core optical fiber cables, single 4-core optical fiber cables or 1 12-core optical fiber cable (4 cores are used for access and 8 cores are used for continuous passage), and the access of the cascade cable with the capacity of 8 cores is realized through 4 1-to-2 optical splitters; when the device is used as an intermediate cascade box, a 1-core access cable is introduced in the upstream direction, 1-core is split to be in cascade connection through a 1-split 9-unequal-ratio beam splitter, and 8-core is split to be in terminal access; when the cable is used as a terminal access box, 1 core cable is introduced in the uplink, and 8 core user access optical cables are output in the downlink. The box body has strong scene applicability and simple installation and operation, and can meet the multi-scene access requirements of scattered users, edge access users, rural access users and the like.

Drawings

FIG. 1 is a view of the exterior of a cabinet door of the present utility model;

FIG. 2 is a schematic diagram of functional areas of the main housing structure of the present utility model;

FIG. 3 is a diagram of the arrangement of the various functional structural components inside the cabinet of the present utility model;

FIG. 4 is a structural layout of the lower end lead-in cable hole of the inventive tank;

FIG. 5 is a top view of the case of the present utility model in a hanging bar installation mode;

FIG. 6 is a functional diagram of the structure of the detailed functional areas inside and outside the case of the present utility model;

FIG. 7 is a functional diagram of the structure of the cover plate of the ascending and cascade area in the case of the present utility model;

fig. 8 is an external view of a cover plate of the beam splitter of the present utility model;

FIG. 9 is a partial cross-sectional view of the case door, case, sealing strip of the present utility model in the locked condition of the complete machine;

FIG. 10 is a partial cross-sectional view of the snap-in structure of the main housing unit of the present utility model in a one-time locked state;

FIG. 11 is a structural layout diagram of the utility model when used as a head end box with 4 single fiber cables upstream introduced;

FIG. 12 is a structural layout of the present utility model when used as a head-end box for upstream entry of a single 4-core cable;

FIG. 13 is a structural layout of the present utility model when used as a head end box for upstream entry of a single 12-core cable;

FIG. 14 is a structural layout diagram of the present utility model when used as a cascade box, with the upstream entry of a single fiber cable while the cascade connection is being made;

FIG. 15 is a structural layout diagram of the present utility model when used as a terminal box with a single fiber optic cable upstream introduced;

in the figure: 1. a box door; 101. enterprise LOGO; 102. two-dimensional code identification; 103. an elastic buckle; 104. a door hinge; 2. a main case; 2a, a light splitting area; 2b, uplink and cascade region; 2c, downlink access zone; 201. an upper fixing lug; 202. a lower fixing lug; 203. a clamping groove; 204. a box hinge; 205. the tail fiber coiling and accommodating device; 206. a fixed bracket; 207. an upstream adapter assembly; 208. a downstream adapter assembly; 209. a grounding fixing device is led in a descending way; 210. a rubber-insulated optical cable clamping groove; 211. a lock body hasp; 212. a hinge base; 213. a limit boss; 3. a light splitting area cover plate; 301. a downlink port identification; 4. an uplink and cascade region cover plate; 401. a first electronic lock; 402. a first hinge shaft; 403. a limit groove; 404. an uplink port identification; 5. a second hinge shaft; 6. a second electronic lock; 7. a sealing strip; 8. ascending and cascading to form an end region; 9. descending to form an end region; 10. an optical branching device; 11. the leading-in grounding fixed area of the ascending and cascading area; 12. a fixed area for introducing downlink access is grounded; 13. an uplink access hole area; 14. a downlink access hole area; 15. a hanger bar mount; 16. an upstream drop cable; 17. a downstream output optical cable; 18. 1, dividing into 2 equally dividing beam splitters; 19. a 1-division 9-unequal ratio beam splitter; 20. a passing optical cable is not broken; 21. 1 minute 8 average beam splitter.

Detailed Description

As shown in fig. 1 and 2, a multifunctional optical splitting and fiber splitting box for FTTH or FTTR access comprises a box door 1, a main box 2, a splitting area cover plate 3 and an uplink and cascade area cover plate 4.

The main box 2 is internally divided into three functional areas: the upper left is a light splitting area 2a, the lower left is a downlink access area 2b, the right is an uplink and cascade area 2c, and the left and right sides are separated by a fixed partition board; the main box body 2 is formed by injection molding of nonmetallic composite materials; the top of the main box body 2 is provided with an upper fixing lug 201, and the bottom is provided with a lower fixing lug 202; as shown in fig. 5, the back of the main box body 2 is also provided with a hanging rod mounting piece 15, so that the box body is compatible with the functions of hanging installation and hanging rod installation, and when the hanging rod is required to be installed, the hanging rod of the box body can be installed by penetrating a stainless steel belt through a relevant groove of the hanging rod mounting piece 15 and then fixing the stainless steel belt on a cement rod; when the wall hanging installation is needed, the upper fixing lug 201 and the lower fixing lug 202 are directly fixed through screws, and the on-site installation is simple, quick and reliable.

As shown in fig. 6, a fixing bracket 206 for mounting the optical splitter 10 and a pigtail coiling and accommodating device 205 are arranged in the splitting area 2 a; the optical splitter 10 is a miniature optical splitter, and comprises 4 1-to-2-to-1-to-9-to-different-ratio optical splitters 18, 1-to-8-to-be-average optical splitters 21; the right side of the light splitting area 2a is provided with an uplink cascade formation end area 8, and two uplink adapter assemblies 207 are arranged in the area, so that the maximum 4-core formation end is met; the lower side of the light splitting area 2a is provided with a downlink forming end area 9, and two rows and four columns of downlink adapter assemblies 208 are arranged in the area, so that 8-core forming ends are met at maximum; the light splitting area cover plate 3 is arranged at the top of the light splitting area 2a in an openable manner, so that independent packaging of the light splitting area 2a is realized, and the light splitting area cover plate 3 and the ascending and cascading area cover plate 4 can be provided with an electronic lock; as shown in fig. 2 and 8, the optical splitter area cover plate 3 covers the optical splitter area through its own clamping structure, so as to protect the optical splitter, the pigtail and the adapter assembly, and downlink port identifiers 301, 01 and 02 corresponding to the ports of the downlink adapter assembly 208 one by one are arranged on the optical splitter area cover plate 3. . .08, facilitate the management of the downstream port.

The downlink access zone 2c is of an open structure, so that the operation of the lead-in fixation, the grounding and the on-site end forming and plug-in operation of the downlink lead-in optical cable are facilitated, the zone and the other two functional zones are independent from each other, and the operation is not affected; the lower side in the downlink access zone 2c is provided with a downlink access leading-in grounding fixing zone 12, and the area is internally provided with a downlink leading-in grounding fixing device 209 and a leather cable clamping groove 210, which are both provided with a row of four, so that the optical cable can be conveniently accessed and fixed; as shown in fig. 4, the downstream access area 203 is flanked by downstream access hole areas 14 that employ multi-hole side-by-side drop cable holes.

As shown in fig. 3 and 6, the uplink and cascade area 2b is an independent operation area, and the function area realizes functions of introducing, grounding, fixing, storing, field terminating and the like of the uplink access cable and the cascade cable; a tail fiber accommodating device 205 is arranged in the uplink and cascade region 2b, the lower side in the uplink and cascade region 2b is provided with a downlink connected lead-in grounding fixing region 11, and two lead-in grounding fixing devices 209 and two rubber cable optical cable clamping grooves 210 are arranged in parallel in the region; a tail fiber coiling and accommodating device 205 and a lock body hasp 211 are also arranged in the ascending and cascading zone 2 b; as shown in fig. 4, an uplink access hole area 13 is arranged on the side surface of the uplink and cascade area 2b, and the uplink access hole area 13 adopts a combined cable hole device, so that a single-hole access optical cable can be realized, and the introduction of a continuous cable 17 can be realized.

As shown in fig. 7, the right side of the cover plate 4 of the uplink and cascade region is matched with the hinge base 212 arranged on the inner side of the main box body 2 through the first hinge shaft 402, and is arranged on the top of the uplink and cascade region 2b in an openable and closable manner, so that independent packaging of the uplink and cascade region 2b is realized and the function region is protected; the ascending and cascading zones cover plate 4 is provided with a first electronic lock 401 which is matched with the lock body hasp 211; a limit boss 213 is also arranged at the position of the inner side of the main box body 2 beside the hinge seat 212, and a limit groove 403 matched with the limit boss 213 is arranged on the cover plate 4 of the ascending and cascading zones; when the cover plate 4 of the uplink and cascade area is locked, the limiting boss 213 is blocked in the limiting groove 403, so that the cover plate 4 of the uplink and cascade area can be prevented from being illegally taken out, and the function of protecting the independent operation of the area is achieved; the top of the upstream and cascade zone cover plate 4 is also provided with upstream port identifiers 404 corresponding to the ports of the upstream adapter assembly 207 one by one. When the fiber splitting box is used, the cover plate 4 of the uplink and cascade region is opened, and the cover plate 3 of the fiber splitting region can be opened.

The case door 1 is openably and closably covered on the main case 2 by providing a second hinge shaft 5 and a door hinge 104 on the left side thereof in cooperation with a case hinge 204 provided on the main case 2; as shown in fig. 10, an upper elastic buckle 103 and a lower elastic buckle 103 are arranged on the right side of the box door 1, and a clamping groove 203 is arranged at the position of the main box 2 corresponding to the elastic buckle 103; after the elastic buckle 103 passes through the clamping groove 203, the elastic buckle 103 is naturally deformed to be fastened with the clamping groove 203, so that the box door 1 and the main box 2 are locked once; when the box body needs to be opened, the tail parts of the two elastic buckles 103 are manually pressed, and meanwhile, the box body door 1 is opened, so that the elastic buckles 103 are separated from the clamping grooves 203, and the door opening action is realized.

In addition, according to the protection level requirement, a second electronic lock 6 or a portable lock catch is arranged in the middle position of the right side of the box door 1, so that the box is locked secondarily; the enterprise LOGO101 formed by one-time injection molding and the two-dimensional code mark 102 for marking the identity of the box body device are arranged at the central position of the upper end of the surface of the box body door 1. All the fixed installation and the on-site end forming of the access cables are completed in the main box body.

Meanwhile, in order to make the box body compatible and meet indoor and outdoor use environments, the sealing strips 7 formed by disposable foaming are embedded in the grooves around the main box body 2, as shown in fig. 9, so that the sealing performance of the main box body 2 is improved; after the box door 1 is locked, the sealing strip 7 is in an extruded state, the outer surface of the sealing strip 7 is fully contacted with the box groove and the edge of the door to participate in the contact of the sealing part, and the line contact is changed into the peripheral surface contact, so that the stable IP 65-level sealing effect is achieved.

As shown in fig. 11, when the fiber splitting box is used as a head box, a first configuration is provided: when the upstream lead-in optical cable 16 is 4 1 core cables, after the outer cables are led in from the upstream lead-in cable holes, the outer cables are connected with the upstream adapter assembly 207 through 4 connectors which are fixed, grounded and end-formed on site, and then are respectively connected with 4 1-to-2 equipartition optical splitters 18, 8 core connectors which are output by the optical splitters in a downstream way are respectively connected with the downstream adapter assembly 208 and are respectively end-formed with 8 downstream output optical cables 17 which are end-formed on site, and the 8 downstream output optical cables 17 are installed in two rows in a staggered way, so that the on-site plugging operation is facilitated; the 8 downlink output optical cables 17 are output to the equipment box after being reinforced by the grounding of the downlink region and installed and fixed, and are connected with the uplink of the next node cascade box.

As shown in fig. 12, when the fiber splitting box is used as a head box, two configurations are provided: when the upstream lead-in optical cable 16 is 1 piece of 4 core cable, after the outer cable is led in through the upstream lead-in cable hole, after fixing, grounding strengthening and fiber splitting, 4 connectors at the site end are connected with the upstream adapter assembly 207, then are respectively connected with 4 1-to-2 uniform beam splitters 16, 8 core connectors at the downstream output of the beam splitters are respectively connected with the downstream adapter assembly 208 and respectively form ends with 8 downstream output optical cables 17 at the site end, and the 8 downstream output optical cables 17 are output from the equipment box after being strengthened through the grounding of a downstream cascade region and being installed and fixed, and are connected with the upstream of the next node cascade box.

As shown in fig. 13, when the fiber separation box is used as a head box, three configurations are provided: when the upstream lead-in optical cable 16 is 1 12 core cables, the outer cables are led in a continuous way through the upstream lead-in cable holes, then are fixed, grounded and reinforced, and split, the 8 core continuous way optical cable 20 is stored and reinforced and fixed in a redundant way, and then is output to the box body again, in addition, 4 connectors at the field forming end for providing service in the box body are connected with the upstream-stage adapter assembly 207, then are respectively connected with 4 1-to-2 equipartition optical splitters 18, 8 core connectors at the downstream output of the optical splitters are respectively connected with the downstream adapter assembly 208, are respectively connected with 8 downstream output optical cables 17 at the field forming end, and output to the equipment box after the 8 core downstream output optical cables 17 are reinforced in a grounding way and fixed in the downstream access area 2c, and are connected with the upstream of the next node-stage connector.

As shown in fig. 14, when the fiber splitting box is used as an intermediate cascade box, the upstream lead-in outer cable 16 enters the box body, is fixedly grounded and reinforced, is formed into an end on site, and then is connected with the upstream adapter assembly 207, after splitting light by the 1-to-9-unequal-ratio splitter 19, the output 1-core cascade cable enters the upstream area to form an end, the equipment box is output by the downstream output optical cable 17, the other 8 cores of the split light output are connected with the downstream forming end area, and after being fixedly grounded and reinforced by the downstream access area 2c, the equipment is output, and the connection terminal is connected with a user.

As shown in fig. 15, when the optical fiber cable is used as a terminal box, the upstream optical fiber cable 16 is fixed, grounded and reinforced as necessary, and then is terminated on site, and is connected to the upstream adapter assembly 207, and after being split by the 1-split 8-split splitter 21, the output 8-core terminated end is terminated to the downstream adapter assembly 208, and is terminated to 8 single-core subscriber cables (on-site terminated ends) connected downstream, so as to connect to an end user.

In addition, the installation and fixation of various optical splitters related to the optical splitting area, the storage of redundant cables, the structural layout of the installation areas of the up-and-down and cascade adapters and the like, together with the cover plate component of the optical splitter, can also be in an independent packaging modularized form, and can be packaged outside the box body at first, and then integrally installed in the optical splitting functional area in the box body in an assembling mode; likewise, the structural layout patterns of the uplink and cascade areas and the downlink access area can be installed in the corresponding functional areas in the box body in the above-mentioned assembly mode; or a single functional base plate can be designed to contain all the functions covered by the above three functional areas and then be integrally assembled to the bottom of the case. The structural design scheme and the functional layout idea are all within the protection scope of the patent.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides a multi-functional beam split divides fine case that FTTH or FTTR inserted usefulness which characterized in that: comprising

The main box (2), its inside is equipped with beam split district (2 a), ascending and cascade district (2 b) and downstream access district (2 c) that separates each other, wherein:

the uplink and cascade area (2 b) can realize the introduction, grounding fixation, storage and end formation of an uplink access cable and a cascade cable;

the downlink access area (2 c) can realize the lead-in fixation, grounding and on-site end formation and plug of a downlink lead-in optical cable;

the optical splitter (10) is arranged in the optical splitting area (2 a), and at least two rows of adapter assemblies are arranged between the optical splitting area (2 a) and the uplink and cascade area (2 b); at least two rows and four columns of adapter assemblies are arranged between the light splitting area (2 a) and the downlink access area (2 c).

2. The multifunctional drop box for FTTH or FTTR access of claim 1, wherein: the box body door (1) is also included; the box door (1) can be opened and closed on the main box body (2), and the box door (1) and the main box body (2) are locked by an electronic lock or a locking device.

3. The multifunctional drop box for FTTH or FTTR access of claim 2, wherein: the locking device comprises an elastic buckle (103) arranged at the upper end and the lower end of the right side of the box door (1) and a clamping groove (203) arranged at the corresponding position of the main box body (2), and the box door (1) and the main box body (2) can be locked by fastening after the elastic buckle (103) passes through the clamping groove (203).

4. The multifunctional spectroscopic fiber box for FTTH or FTTR access according to claim 1 or 2, wherein: the light splitting area cover plate (3) and the uplink and cascade area cover plate (4) are respectively arranged at the tops of the light splitting area (2 a) and the uplink and cascade area (2 b) in an openable and closable manner, and independent packaging of the light splitting area (2 a) and the uplink and cascade area (2 b) is realized.

5. The multifunctional drop box for FTTH or FTTR access of claim 4, wherein: a fixed bracket (206) for installing the optical splitter (10) and a tail fiber coiling and accommodating device (205) are arranged in the optical splitting area (2 a); a tail fiber coiling and accommodating device (205) and an outer cable fixing and grounding device are arranged in the ascending and cascading zone (2 b); an outer cable fixing and grounding device is arranged in the downlink cascade region.

6. The multifunctional drop box for FTTH or FTTR access of claim 5, wherein: the main box body (2) is formed by injection molding of a nonmetallic composite material, a groove is formed in the opening of the main box body (2), and a one-time forming foaming sealing strip (7) for improving the sealing performance of the main box body is arranged in the groove.