CN216646918U

CN216646918U - Optical fiber distribution frame system and distribution box thereof

Info

Publication number: CN216646918U
Application number: CN202220242004.0U
Authority: CN
Inventors: 孔光; 宋元新; 祝辉; 曹利华; 沈镇江
Original assignee: Everpro Technologies Wuhan Co Ltd
Current assignee: Everpro Technologies Wuhan Co Ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-05-31
Anticipated expiration: 2032-01-29

Abstract

The utility model relates to a fiber distribution frame system and its distribution box, the distribution box includes: the box body is provided with a rear wire inlet end plate, and a wire inlet notch for leading an optical cable into the box body is formed in the rear wire inlet end plate; and the splitter clamping seat is fixedly arranged at the position of the wire inlet gap, a splitter clamping groove which runs through and extends along the front-back direction is arranged on the splitter clamping seat, and the splitter clamping groove is used for detachably clamping and assembling an optical cable splitter preset on the optical cable. When introducing the optical cable in to the box through the inlet wire breach, can be directly with the optical cable branching ware that is preset on the optical cable can be in removable ground joint branching ware joint groove, realize reliable joint fixed, not only can effectively improve the installation effectiveness, the later stage maintenance of also being convenient for is changed.

Description

Optical fiber distribution frame system and distribution box thereof

Technical Field

The present invention relates generally to the field of fiber optic distribution technology. More particularly, the present invention relates to an optical fiber distribution frame system and a distribution box therefor.

Background

With the rapid development of the information industry, the optical fiber density of optical communication equipment is also rapidly improved, so that an optical fiber distribution frame system is required to be configured on the optical communication equipment, operators can conveniently arrange densely arranged optical fibers, and the optical fiber distribution frame system is convenient to assemble, disassemble, repair and maintain.

The utility model discloses a high density modular fiber distribution frame system is disclosed in the chinese utility model patent of grant publication No. CN208092293U, it includes the distribution frame, the distribution frame includes outer frame and assembles the box in outer frame along fore-and-aft direction slidable business turn over, the anterior removable installation function module of box, there is the handle in the front end both sides difference joint of box, this handle both is used for arranging the cable that corresponds on the function module, also supply the operating personnel application of force to pass in and out outer frame with the push-and-pull box, form reason line wiring district between the handle of both sides, also supply operating personnel to manage the line. The rear end of the box body is provided with one or more gaps, the splitter is clamped in the gaps, the main optical cable is conveniently branched into branch optical cables by the splitter, the branch optical cables penetrate through the splitter and are arranged inside the box body for wiring and are connected with corresponding functional modules arranged at the front part, and the main optical cable is arranged outside the corresponding box body so as to meet the sliding requirement of the box body.

In the optical fiber distribution frame system, the splitter is directly fixedly clamped on the notch of the rear end plate of the box body. Because the box back end plate is the sheet metal component that thickness is relatively thin usually, and the thickness on the box back end plate is thinner, for improving the branching ware stability, generally need bind the ribbon on branching ware and box back end plate by the manual work to effectively fix the branching ware on the box back end plate, installation operating efficiency is lower, also does not benefit to the maintenance and changes. In addition, when directly the joint with the branching unit is on the box back end plate, in long-time use, box back end plate upper end joint position warp easily and can't continue to block the branching unit, probably influences distribution frame system normal use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a distribution box of an optical fiber distribution frame system, which aims to solve the technical problem of low installation efficiency caused by manual binding of a binding belt when a splitter is directly clamped and assembled on a rear end plate of a box body in the prior art. Furthermore, the utility model also provides an optical fiber distribution frame system using the distribution box.

Specifically, the technical solution provided by the first aspect of the present invention is as follows: a distribution box for an optical fiber distribution frame system, comprising: the box body is provided with a rear wire inlet end plate, and a wire inlet notch for leading an optical cable into the box body is formed in the rear wire inlet end plate; and the splitter clamping seat is fixedly arranged at the position of the wire inlet gap, a splitter clamping groove which runs through and extends along the front-back direction is arranged on the splitter clamping seat, and the splitter clamping groove is used for detachably clamping and assembling an optical cable splitter preset on the optical cable.

As a further improvement, the wire inlet notch extends downwards from the top surface of the rear wire inlet end plate, and the notch of the splitter clamping groove is arranged upwards so as to facilitate taking and placing the optical cable splitter from the upper side of the splitter clamping seat.

As a further improvement, the splitter clamping seat is detachably and fixedly arranged on the lower bottom plate of the box body.

As a further improvement, the bottom of the splitter clamping groove is provided with a screw mounting hole extending along the vertical direction, and the screw mounting hole is used for penetrating and mounting a fastening screw so as to fixedly mount the splitter clamping seat on the lower bottom plate.

As a further improvement, the rear end of the splitter clamping seat is inserted into the wire inlet notch in a tight fit manner.

As a further improvement, more than two splitter clamping grooves are sequentially arranged on the splitter clamping seat along the left-right direction.

As a further improvement, the top of the splitter clamping seat is detachably clamped with a stop cover plate for preventing the optical cable splitter from being accidentally pulled out of the splitter clamping groove upwards.

As a further improvement, a clamping guide rail extending in the front-rear direction is arranged on the spliter clamping seat and used for guiding the stop cover plate to slide back and forth so as to assemble and disassemble the stop cover plate, and a clamping structure used for being clamped and matched with the stop cover plate is arranged on the clamping guide rail so as to detachably clamp and assemble the stop cover plate on the spliter clamping seat when the stop cover plate moves backwards to a proper position.

As a further improvement, the top of the box body is provided with an upper cover plate which can be assembled and disassembled in a sliding manner along the front-back direction, the rear end of the upper cover plate is provided with a downward turning edge, and the downward turning edge is fixedly arranged on the rear wire inlet end plate through a hand-screwed screw.

The second aspect of the utility model provides the following technical solutions: an optical fiber distribution frame system comprises an outer frame, wherein a distribution box or at least two distribution boxes are assembled in the outer frame in a sliding mode along the front-back direction, the at least two distribution boxes are sequentially arranged along the up-down direction, the distribution box adopts the scheme of the distribution box of any optical fiber distribution frame system mentioned above, and when an optical cable is led into the distribution box through the wire inlet gap of the rear wire inlet end plate of the distribution box, an optical cable splitter pre-installed on the optical cable is detachably clamped and assembled on a splitter clamping seat of the distribution box.

The beneficial effects are that: in the optical fiber distribution frame system provided by the utility model, the splitter clamping seat is fixedly arranged at the wire inlet notch of the rear wire end plate of the distribution box, the splitter clamping seat is provided with the splitter clamping groove, and when an optical cable is introduced into the box body through the wire inlet notch, the optical cable splitter preset on the optical cable can be directly and detachably clamped in the splitter clamping groove, so that reliable clamping and fixing are realized, the installation efficiency can be effectively improved, and the later maintenance and replacement are also convenient.

In some embodiments, the wire inlet notch extends downwards from the top surface of the rear wire inlet end plate, and the notch of the splitter clamping groove is arranged upwards, so that an operator can conveniently take and place the optical cable splitter from the upper side of the box body, and the operation is convenient.

In some embodiments, the splitter clamping seat is directly fixed on the lower bottom plate of the box body, and the screw mounting hole is directly formed in the groove bottom of the splitter clamping groove, so that the installation is convenient, the size of the splitter clamping seat does not need to be additionally increased, and the additional space in the box is avoided.

In still other embodiments, the top of the splitter clamping seat can be detachably assembled with a stop cover plate, so that the optical cable splitter can be conveniently stopped, and the optical cable splitter is prevented from being accidentally separated from the splitter clamping groove.

In other embodiments, the upper cover plate is fixed on the rear inlet wire end plate by using the hand-screwed screw, so that tool-free assembly and disassembly are conveniently realized.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to like or corresponding parts and in which:

fig. 1 is a schematic structural diagram of an optical fiber distribution frame system according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the wiring box of fig. 1;

fig. 3 is a schematic view of the wiring cabinet of fig. 2 with the upper cover plate removed;

FIG. 4 is an enlarged view taken at A in FIG. 3;

fig. 5 is a partial structural schematic view of the wiring box of fig. 1;

FIG. 6 is a schematic structural view of the splitter cassette of FIG. 5 after installation;

FIG. 7 is a schematic view of the distribution box of FIG. 2 assembled with an upper cover plate;

fig. 8 is a schematic diagram of a distribution box in another embodiment of an optical fiber distribution frame system according to the present invention;

FIG. 9 is a schematic view of the hidden stop cover plate of FIG. 8;

fig. 10 is a schematic structural diagram of another embodiment of an optical fiber distribution frame system according to the present invention.

Description of the reference numerals:

1. an outer frame; 2. a wiring box; 21. an upper cover plate; 210. turning down the edges; 22. a side plate; 23. front mounting end plates; 24. a front support floor; 25. a rear wire inlet end plate; 251. a wire inlet notch; 252. a wire inlet hole; 26. a lower base plate; 260. a screw mounting hole; 3. a wire arranging handle; 4. a front box door; 5. a functional module; 6. an optical cable splitter; 7. stopping the cover plate; 71. a cover plate main body; 72. elastic turning edges; 73. a card interface; 74. a strip-shaped notch; 8. a splitter clamping seat; 80. clamping the guide rail; 801. a barb structure; 81. a splitter clamping groove; 9. a trunk optical cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it should be understood by those skilled in the art that the embodiments described below are some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Among the current fiber distribution frame system, directly fix the optical cable branch ware joint that is preset on the optical cable on the back inlet wire end plate of distribution case, for improving optical cable branch ware stability, need the manual work to bind the ribbon, both influenced the installation effectiveness, also do not benefit to the later stage maintenance and change. In view of this, in the optical fiber distribution frame system provided by the present invention, the splitter clamping seat is directly disposed at the incoming line notch of the rear line terminal board of the distribution box, and when the optical cable is introduced, the optical cable splitter preset on the optical cable is detachably clamped in the splitter clamping groove preset on the splitter clamping seat, so as to realize reliable clamping and fixing, which not only can effectively improve the installation efficiency, but also is convenient for later maintenance and replacement.

Having described the general principles of the utility model, various non-limiting embodiments of the utility model are described in detail below. Any number of elements in the drawings are by way of example and not by way of limitation, and any nomenclature is used solely for differentiation and not by way of limitation.

The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the utility model.

Embodiment 1 of the optical fiber distribution frame system provided by the present invention:

as shown in fig. 1 to 7, the optical fiber distribution frame system includes an outer frame 1, a distribution box 2 is slidably mounted in the outer frame 1 along the front-rear direction through a slide rail structure, and the distribution box 2 can be pushed in and pulled out from the front side of the outer frame 1, so that the distribution box is mounted in the outer frame in a drawer type, and an operator can conveniently arrange the optical cables on the distribution box.

The wiring box 2 specifically comprises a box body, a plurality of module mounting ports are sequentially arranged on the front portion of the box body along the left-right direction, a functional module 5 is respectively and detachably fixedly mounted in each module mounting port, and the functional module is used for being applied to optical communication equipment to transmit corresponding optical signals. The functional module is specifically installed and fixed in the clamping groove formed in the front end of the box body in a clamping mode, tool-free installation of the functional module can be achieved in the clamping mode, and disassembly and assembly are flexible and convenient. In other embodiments, the functional module may be mounted by screw fastening, which may make the functional module mounted more stably and firmly, and the specific mounting manner may be selected according to actual needs, and the present invention is not limited thereto.

Corresponding to different practical application scenarios, the functional module may be specifically a switching module and/or a wiring panel, and the switching module may be specifically an MPO-to-LC module or an MPO-to-MPO module, and the utility model does not limit the specific type of the functional module 5.

The front end of the case has a front support floor 24, and the front support floor 24 is located on the front side of the functional module 5. The left side and the right side of the front supporting bottom plate 24 are respectively and fixedly provided with the wire arranging handles 3, the wire arranging handles 3 on the two sides are distributed at intervals along the left-right direction to form a wire arranging and wiring area, and the wire arranging and wiring area is positioned in front of the functional module so as to conveniently arrange the optical cables led out from the functional module. Each of the cable management handles 3 has a cable management slot hole extending in the front-rear direction, so that the optical cables are sequentially arranged in the front-rear direction to realize cable management.

As shown in fig. 1, the optical cables led out from the front end of the functional module 5 are bent and extended correspondingly to the left and right sides at the cable arranging area, and led out through the cable arranging long holes of the cable arranging handles 3 at the two sides, and the optical cables can be distributed in the cable arranging long holes in a relatively tidy manner, so that an operator can conveniently overhaul and replace the optical cables, the cable arrangement is simple and convenient, and the installation and maintenance of the optical distribution cables or the connecting optical cables are facilitated. Moreover, the wire arranging handle 3 is usually large, and can play a role of conveniently pushing and pulling the box body by an operator, so that the box body can be conveniently controlled to slide in the outer frame 1 in a reciprocating manner.

In the embodiment shown in fig. 1, the front side of the front support bottom plate 24 of the cabinet is hinge-fitted with the front door 4, in other words, the bottom end of the front door 4 is hinge-fitted to the front side of the cabinet so that the front door 4 can be flipped upside down. Moreover, the front box door 4 has a set width, so that when the front box door 4 can be turned upwards and closed, the wire arranging and wiring area can be blocked from the front side, and the front box door can be turned downwards and opened to expose the wire arranging and wiring area. In other embodiments, the front box door can be turned down to be closed and turned up to be opened, and the opening and closing mode of the front box door is not limited by the utility model.

As shown in fig. 2 and 3, the box body has an upper cover plate 21, a lower plate 26, two side plates 22, a front mounting end plate 23 and a rear end plate 25, the two side plates 22 are located on the left and right sides of the box body, the upper cover plate 21 and the lower plate 26 are located on the upper and lower sides of the box body, and the front mounting end plate 23 and the rear end plate 25 are located on the front and rear sides of the box body. When specifically adding man-hour, can directly carry out stamping process in order to obtain the base plate, follow the panel beating processing of upwards buckling with the end about and along the front and back end of base plate, can form the lower plate, both sides board, preceding installation end plate and the back inlet wire end plate of box, encapsulate upper cover plate 21 at the top again, can form the box. In specific implementation, in order to improve the strength of the box body, the two side plates 22 may be correspondingly fixed and assembled with the lower plate 26, the front mounting end plate 23, and the rear end plate 25, and may specifically be welded, riveted, or clamped. Moreover, in order to further improve the strength of the box body, a reinforcing structure can be arranged on the corresponding plate, for example, top turned edges can be respectively arranged on the two side plates, the front mounting end plate and the rear incoming line end plate.

In the case of the case, the two side plates 22 may form a receiving cavity when enclosed together with the lower plate 26, the front mounting end plate 23, and the rear terminal plate 25. As shown in fig. 3, a plurality of functional modules 5 are disposed on the front mounting end plate 23, and when an optical cable is introduced into the rear inlet end plate 25, a plurality of fiber cores in the optical cable are separated and connected to an optical fiber connector at the end of the fiber core, and the optical fiber connector is connected to the corresponding functional module 5, so that optical signal transmission can be achieved. The main body part of the functional module 5, the fiber core and the optical fiber connector arranged at the end part of the fiber core are all positioned in the accommodating cavity.

In order to shield the accommodating cavity to effectively protect the devices in the accommodating cavity, an upper cover plate 21 is detachably mounted on the top of the box body. When the cable in the receiving cavity needs to be replaced or the wiring operation is performed, the upper cover plate 21 is opened. After finishing corresponding operation, can be again with upper cover plate 21 fixed mounting at the top of box, guarantee can normally shelter from the holding chamber can.

As shown in fig. 3 and 7, the upper cover 21 is slidably attached to and detached from the top of the box body in the front-rear direction. In order to facilitate the sliding assembly and disassembly of the upper cover plate 21, slide rail structures are respectively arranged at the tops of the left side plate 22 and the right side plate 22 of the box body, the slide rail structures on the side plates 22 are formed by an upper plate part and a lower plate part, and the upper plate part and the lower plate part are arranged at intervals up and down to form a sliding groove for the upper cover plate 21 to slide in. When the upper cover plate 21 is slid into the sliding groove from back to front, the upper cover plate 21 can be clamped up and down by utilizing the upper plate part and the lower plate part, and the upper cover plate 21 can be conveniently and fixedly arranged at the top of the box body.

In addition, in order to improve the stability of the connection between the upper cover 21 and the box body, a downward-turned edge 210 is provided at the rear end of the upper cover 21, and the downward-turned edge 210 may be the same as the left-right length of the upper cover 21 or may extend only in the left-right direction to a set size. Set up the pilot hole on turning over down along 210, correspondingly, also set up the pilot hole on back inlet wire end plate 25, when sliding upper cover plate 21 forward and installing in place, the pilot hole on turning over down along 210 just corresponds with the pilot hole on the back inlet wire end plate 25 and link up, and the hand screw of adorning soon can be with turning over down on 210 fixed mounting back inlet wire end plate 25, and then reliably fix the upper cover plate 21 at the box top. When the upper cover plate 21 needs to be disassembled, the manually screwed screw is directly unscrewed manually. The whole installation process of the upper cover plate 21 does not need extra tools, and tool-free assembly and disassembly operation is conveniently realized.

For the convenience of wiring, as shown in fig. 3, two wire inlet notches 251 are provided on the rear terminal board 25 of the box body, and each wire inlet notch 251 is used for introducing an optical cable into the box body. The wire inlet notch 251 extends downwards from the top surface of the rear wire inlet terminal plate 25, and after the upper cover plate 21 is disassembled, the wire can be directly led from the upper part of the box body, so that the construction operation is convenient. In addition, the rear inlet end plate 25 is also provided with a redundancy design with an inlet hole 252, the inlet hole 252 can be plugged by a rubber plug under the general condition, when the optical cable needs to be additionally added under the condition, the rubber plug at the inlet hole can be detached, and the optical cable can be led in from the inlet hole.

In this embodiment, the optical cable led into the box from the cable inlet notch 251 is a main optical cable 9, an optical cable splitter 6 is pre-installed on the main optical cable 9, the optical cable splitter 6 is a device for branching the main optical cable, the optical cable splitter 6 can branch one main optical cable 9 into a plurality of branch optical cables and provide protection for cable branches, as shown in fig. 3, the main optical cable 9 is branched into a plurality of branch optical cables by the splitter, and the end portions of the branch optical cables are provided with optical fiber connectors so as to be in butt joint communication with the corresponding functional modules 5.

Because the distribution box 2 can slide to and fro relative to the outer frame 1, the optical cable splitter 6 and the box body can be relatively fixedly assembled in order to avoid the traction of the branched optical cables in the box body. When the push-pull distribution box 2 slides back and forth, the optical cable splitter 6 and the functional module 5 move synchronously, and the branched optical cable is not drawn. The portion of the trunk cable 9 outside the enclosure 2 can be bent to accommodate reciprocal sliding of the enclosure.

To fix the optical cable splitter 6 conveniently, as shown in fig. 3, a splitter clamping seat 8 is respectively and fixedly arranged at each of the wire inlet notches 251 of the box body, a splitter clamping groove 81 is arranged on the splitter clamping seat 8, and the splitter clamping groove 81 specifically extends through in the front-back direction to correspond to the wire inlet notches 251. When the optical cable splitter 6 preset on the optical cable is detachably clamped and assembled in the splitter clamping groove 81, the optical cable can be ensured to be led into the box body from the wire inlet notch.

Corresponding to the wire inlet notch 251 in fig. 3, the notch of the splitter clamping groove 81 is arranged upward, thereby facilitating the operator to take and place the optical cable splitter 6 from the upper side of the splitter clamping seat 8.

In addition, as shown in fig. 3, two splitter clamping grooves 81 are sequentially arranged on one splitter clamping seat 8 in the left-right direction, so that more optical cable splitters 6 can be placed at the same time, and more wire feeding amount is effectively increased.

The splitter clamping base 8 of fig. 3 is fixedly and detachably fixed to the bottom plate 26 of the box body as shown in fig. 6 when assembled. In the specific assembly, as shown in fig. 5, screw assembly holes 260 are provided at corresponding positions of the lower plate 26 of the case, where four screw assembly holes 260 are arranged corresponding to one wire inlet notch 251. Two screw mounting holes are respectively arranged at the groove bottoms of the two splitter clamping grooves 81 and extend along the vertical direction, when the splitter clamping seat 8 is installed in place, the four screw mounting holes and the four screw assembling holes 260 are communicated in a one-to-one correspondence manner, fastening screws penetrate through the screw mounting holes and the screw assembling holes 260, and the splitter clamping seat 8 can be fixedly installed on the lower base plate 26. As shown in fig. 6, the screw mounting hole is provided at the bottom of the splitter catching groove 81, and the fixed assembly can be achieved without enlarging the volume of the splitter catching seat 8.

In fig. 6, the splitter clamping seat 8 is detachably mounted on the lower base plate 26 by means of screw fastening. As another embodiment, the fixing of the splitter clamping seat may also be achieved by fixedly clamping the splitter clamping seat on the lower base plate in a clamping manner or by fixedly connecting the splitter clamping seat by gluing. As another embodiment, the splitter clamping seat may be further fixedly mounted on the front side surface of the back leading-in wire end plate in a screw connection manner, at this time, corresponding through screw holes are provided on the back leading-in wire end plate and the splitter clamping seat, the fastening screws are turned to the screw holes along the front-back direction corresponding to the boat, and the splitter clamping seat may be fixedly mounted in the box body.

In addition, in the embodiment shown in fig. 3 and 6, in order to achieve the pre-installation positioning of the splitter clamping seat and also improve the assembling strength of the splitter clamping seat and the box body, the rear end of the splitter clamping seat 8 is inserted into the wire inlet notch 251 in a tight fit manner. In this embodiment, the incoming line notch 251 on the rear incoming line terminal board 25 is a rectangular notch, and the shape of the splitter clamping seat 8 is also a matched rectangular structure, so that the splitter clamping seat 8 can be inserted and matched in the incoming line notch 251 in a matched manner, and the tight fit assembly of the splitter clamping seat 8 and the incoming line notch 251 is realized.

In other embodiments, ribs may be protruded from the left and right sides of the splitter clamping seat, and the corresponding side surfaces of the wire inlet gap are pushed from the left and right sides by the ribs, so that the splitter clamping seat 8 can be inserted into the wire inlet gap with tight fit.

In addition, as shown in fig. 6, a clamping rib and a clamping groove extending in the up-down direction are respectively disposed on the left and right side groove walls of each splitter clamping groove 81, and the clamping rib and the clamping groove are used for being inserted into and assembled with a preset clamping structure on the optical cable splitter 6. When putting into optical cable splitter 6 from the upside notch department of splitter joint groove 81, the joint structure of predetermineeing on the optical cable splitter 6 just can correspond the joint adaptation with joint bead and draw-in groove to conveniently fix optical cable splitter 6 joint in splitter joint groove 81. In specific implementation, the structure of the clamping convex rib and the structure of the clamping groove can be designed according to the adaptive clamping structure on the preassembled optical cable splitter 6, and the specific structures of the clamping convex rib and the clamping groove are not specifically limited.

In another embodiment, only the clamping convex edge or only the clamping groove may be disposed on the corresponding side groove wall of the splitter clamping groove, so as to be used for clamping assembly with a preset clamping structure on the optical cable splitter, and ensure that the optical cable splitter can be effectively clamped and fixed in the splitter clamping groove.

As another embodiment, a clamping rib or a clamping groove on the inner side of the splitter clamping groove can be omitted, the inner groove wall of the splitter clamping groove is a plane groove wall, and the groove width dimension of the plane groove wall is slightly smaller than the outer diameter dimension of the optical cable splitter, so that the optical cable splitter can be directly detachably clamped and assembled in the splitter clamping groove in a tight fit manner.

In addition, in order to prevent optical cable splitter 6 from being loosened and coming out of the upper side notch of splitter clamping groove 81, as shown in fig. 3 and 4, a stop cover plate 7 is detachably clamped and assembled on the top of splitter clamping seat 8, and this stop cover plate 7 can better stop optical cable splitter 6 to effectively prevent optical cable splitter 6 from accidentally coming out of splitter clamping groove 81 upward.

As shown in fig. 4, clamping guide rails 80 are respectively disposed at the upper ends of the left and right sides of the splitter clamping seat 8 in a protruding manner, and the clamping guide rails 80 facilitate guiding the stop cover plate 7 to slide back and forth to assemble and disassemble the corresponding stop cover plate 7. And, a barb structure 801 is convexly arranged on the outer side surface of the clamping guide rail 80, the barb structure 801 is used as a clamping structure for clamping and matching with the stop cover plate 7, and the stop cover plate 7 is detachably clamped and assembled on the splitter clamping seat 8 when the stop cover plate 7 moves backwards to a proper position. Correspondingly, a stopping part is further arranged on the clamping guide rail 80 at the rear side of the barb structure 801, and the stopping part is used for being matched with the rear end surface of the stopping cover plate 7 in a stopping manner, and when the stopping cover plate 7 moves backwards to be matched with the stopping part in a pushing and stopping manner, the stopping cover plate 7 can be considered to move backwards to a position.

Corresponding to the structure on the bifurcation clamping seat 8, the stop cover plate 7 comprises a cover plate main body 71 and elastic turned edges 72 which are bent and extended downwards at the left side and the right side, a strip-shaped notch 74 is arranged in the middle of the bending transition joint of the elastic turned edges 72 at the two sides and the cover plate main body 71, the strip-shaped notch 74 can reduce the rigidity of the elastic turned edges 72, so that when the elastic turned edges 72 are pressed on the clamping guide rail 80 from the left side and the right side, the clamping guide rail 80 can reversely push the elastic turned edges 72 to expand and deform, and further the elastic turned edges 72 at the two sides can clamp the bifurcation clamping seat 8 from the left side and the right side.

Corresponding to the barb structure 801 arranged on the clamping guide rail 80, the clamping openings 73 are arranged at the corresponding positions of the elastic turned edges 72 at the two sides of the stopping cover plate 7, and when the stopping cover plate 7 is moved backwards to a proper position, the barb structure 801 enters the clamping openings 73 to realize clamping and fixing.

When the stopping cover plate 7 needs to be detached, as shown in fig. 3 and 4, the stopping cover plate 7 can be pushed and pulled forward along the arrow mark extending upward on the stopping cover plate 7, the elastic turned edges 72 on both sides of the stopping cover plate 7 are forced to open towards the left and right sides, and the barb structures 801 on the clamping guide rail 80 of the splitter clamping seat 8 are pulled out from the clamping openings 73 on the elastic turned edges 72, so as to realize unlocking, and facilitate forward sliding to detach the stopping cover plate 7.

In one embodiment, the stop cover plate slides in the front-back direction and is clamped on the splitter clamping seat. In a specific implementation manner, as another embodiment, the stopping cover plate may be directly fastened to the splitter fastening seat from the upper side, and the two elastic turned edges on the stopping cover plate are designed to be longer, so as to facilitate clamping the splitter fastening seat. Moreover, in order to improve the clamping fixing strength of the blocking cover plate and the splitter clamping seat, the left side and the right side of the splitter clamping seat can be designed into inclined planes, so that the vertical section of the splitter clamping seat is in a trapezoid shape with a large top and a small bottom, correspondingly, the two sides of the blocking cover plate are elastically turned over and retracted along the inward direction to be matched with the splitter clamping seat in the trapezoid shape, and a better clamping assembling effect can be obtained.

In the optical fiber distribution frame system provided by the embodiment, the splitter clamping seat 8 is fixedly arranged at the inlet wire notch 251 of the rear wire end plate 25 of the box body, during assembly, the optical cable splitter 6 preset on the optical cable can be directly fixedly clamped in the splitter clamping groove 81, and during maintenance and replacement, the optical cable splitter 6 can be directly taken out from the splitter clamping groove 81, so that the whole assembly and disassembly process is convenient, no tool is needed, and the assembly and disassembly efficiency can be effectively improved. Moreover, because the optical cable splitter 6 is fixedly installed by the splitter clamping seat 8 which is arranged independently, the shape and the material of the splitter clamping seat 8 can be designed conveniently according to the fixed strength, the service life can be effectively ensured, and the normal work of the wiring box 2 is not influenced by the accident damage.

Embodiment 2 of the optical fiber distribution frame system provided by the present invention:

it differs from example 1 mainly in that:

in embodiment 1, one optical cable splitter is respectively snap-fitted in each splitter snap-fitting seat.

In the present embodiment, as shown in fig. 8 and 9, the splitter catching grooves of the splitter catching seats 8 have a set depth so as to accommodate two or more cable splitters 6. As shown in fig. 9, three optical cable splitters 6 are disposed in each splitter clamping groove, and after the three optical cable splitters are sequentially clamped into the splitter clamping grooves, as shown in fig. 8, the stop cover plate 7 is clamped and fastened at the upper end of the splitter clamping seat 8, so as to provide an effective stop and prevent the optical cable splitters from being accidentally taken off.

Embodiment 3 of the optical fiber distribution frame system provided by the present invention:

it differs from example 1 mainly in that:

in embodiment 1, only one wiring box is provided in the front-rear direction in the outer frame of the optical fiber distribution frame system.

In the present embodiment, as shown in fig. 10, three wiring boxes 2 are slidably fitted in the front-rear direction in the outer frame 1, the three wiring boxes 2 are sequentially arranged in the up-down direction, each wiring box 2 is a basic drawer unit, and each layer of wiring box is slidably fitted in the outer frame by being guided in the front-rear direction by a dedicated slide rail. The specific number of the wiring boxes can be determined by those skilled in the art according to the actual application, and is not limited herein.

As for each distribution box, except for the front box door, the structure of each distribution box can adopt the structure of the distribution box in any embodiment shown in fig. 1 to 9, and detailed description thereof is omitted.

Embodiment 4 of the optical fiber distribution frame system provided by the present invention:

the difference from example 1 is mainly that:

in embodiment 1, the rear end of the splitter clamping seat is directly inserted into the wire inlet notch, so that the assembly stability of the splitter clamping seat and the box body can be improved, and the strength of the rear wire inlet end plate can be improved in reverse.

In this embodiment, the rear end of the splitter clamping seat is butted with the incoming line notch, and at this moment, the splitter clamping seat is fixedly arranged at the position of the incoming line notch, but the splitter clamping seat is not inserted into the incoming line notch, so that the optical cable splitter can be normally and fixedly assembled, and the optical cable can be normally led in from the incoming line notch.

At this moment, can also make the notch of the branch ware joint groove of branch ware joint seat arrange towards one side on the left and right sides direction, notice, need reserve certain clearance in order can normally introduce the optical cable into the inlet wire breach when installation branch ware joint groove in inlet wire breach department.

Embodiment 5 of the optical fiber distribution frame system provided by the present invention:

the difference from example 1 is mainly that:

in example 1, a stopper cover plate is detachably attached to the top of the splitter attachment seat.

In this embodiment, the stop cover plate is omitted, and the upper cover plate is directly attached to the top of the splitter clamping seat in a sinking manner, so that the optical cable splitter can be prevented from being separated from the splitter clamping groove.

The utility model also provides an embodiment of a distribution box of the optical fiber distribution frame system, and the distribution box in the embodiment can adopt the distribution box structure in any of the optical fiber distribution frame system embodiments, which is not described herein again.

The optical fiber distribution frame system provided by the utility model can be applied to the distribution and wire arrangement operation in common optical communication equipment and can also be applied to the space division multiplexing technology. In the whole optical distribution frame system, the distribution box slides in a drawer slide rail mode when convenient, and the drawing is smooth and durable. The detachable clamping assembly of the optical cable splitter can be conveniently realized by utilizing the splitter clamping seat arranged in the box body, the traditional ribbon binding mode is omitted, the wiring is convenient and fast, no tool is required to be configured, the assembly and disassembly efficiency is high, and the installation and the maintenance of the distribution optical cable or the connection optical cable are convenient to realize. The upper cover plate is assembled on the top of the box body in a sliding mode and fixed through hand-screwed screws, and tool-free assembly and disassembly operation can be achieved.

The optical fiber cable has compact integral structure and low duty ratio, is convenient to realize miniaturization and high-density arrangement of functional modules on the premise of ensuring the transmission performance of the optical cable, is combined with a control division multiplexing technology, can also effectively improve the optical fiber capacity and the optical fiber utilization rate of a unit space, and is suitable for industrial application.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used to indicate orientation or positional relationship, such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner" or "outer", etc., are based on the orientation or positional relationship shown in the drawings of the present specification for the purpose of convenience in explaining aspects of the present invention and simplifying the description, and do not explicitly show or imply that the devices or elements involved must have the specific orientation, be constructed and operated in the specific orientation, and therefore the above-described orientation or positional relationship terms should not be interpreted or construed as limiting the aspects of the present invention.

In addition, in the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless explicitly specifically defined otherwise.

While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present invention. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. It is intended that the following claims define the scope of the utility model and that the module compositions, equivalents, or alternatives falling within the scope of these claims be covered thereby.

Claims

1. A distribution box for an optical fiber distribution frame system, comprising:

the box body is provided with a rear inlet wire end plate, and the rear inlet wire end plate is provided with an inlet wire notch for introducing an optical cable into the box body; and

the splitter clamping seat is fixedly arranged at the position of the wire inlet gap, a splitter clamping groove which runs through and extends along the front-back direction is arranged on the splitter clamping seat, and the splitter clamping groove is used for detachably clamping and assembling an optical cable splitter preset on the optical cable.

2. A distribution box of an optical fiber distribution frame system as recited in claim 1, wherein said wire inlet notch extends downward from a top surface of said rear wire inlet end plate, and a notch of said splitter latch groove is disposed upward to facilitate picking and placing of said optical cable splitter from an upper side of said splitter latch seat.

3. A distribution box for an optical fiber distribution frame system as recited in claim 2, wherein said splitter latch receptacles are removably and fixedly mounted to a lower base of said cabinet.

4. A distribution box of an optical fiber distribution frame system as claimed in claim 3, wherein the bottom of the splitter clamping groove is provided with a screw mounting hole extending in the vertical direction for passing a fastening screw therethrough to fixedly mount the splitter clamping seat on the lower base plate.

5. A distribution box for an optical fiber distribution frame system as recited in claim 3, wherein the rear ends of said splitter engagement receptacles are inserted with a tight fit into said access notches.

6. A distribution box of an optical fiber distribution frame system according to any of claims 2 to 5, wherein more than two splitter clamping grooves are arranged on the splitter clamping seats in sequence in the left-right direction.

7. A distribution box of an optical fiber distribution frame system as recited in any one of claims 2 to 5, wherein the top of the splitter clamping seat is removably snap-fitted with a stop cover for preventing the optical cable splitter from being accidentally pulled upward out of the splitter clamping groove.

8. A distribution box of an optical fiber distribution frame system as claimed in claim 7, wherein the splitter clamping seat is provided with a clamping guide rail extending in a front-rear direction for guiding the stop cover plate to slide back and forth to assemble and disassemble the stop cover plate, and the clamping guide rail is provided with a clamping structure for clamping and matching with the stop cover plate so as to detachably clamp and assemble the stop cover plate on the splitter clamping seat when the stop cover plate moves backward to a proper position.

9. A distribution box of an optical fiber distribution frame system as claimed in any one of claims 1 to 5, wherein the top of the box body is provided with an upper cover plate which can be slidably assembled and disassembled along the front-back direction, the rear end of the upper cover plate is provided with a lower turning edge, and the lower turning edge is fixedly arranged on the rear inlet end plate through a hand screw.

10. An optical fiber distribution frame system, characterized in that, comprising an outer frame, in which one or at least two distribution boxes are slidably assembled in a front-back direction, said at least two distribution boxes being sequentially arranged in an up-down direction, said distribution boxes being the distribution boxes of the optical fiber distribution frame system according to any one of claims 1 to 9, and optical cable splitters pre-installed on the optical cable being detachably snap-fitted on said splitter bayonet seats of said distribution boxes when the optical cable is introduced into said distribution boxes through said inlet notches of said rear inlet end plate of said distribution boxes.