CN217443613U - Optical fiber distribution frame and optical fiber distribution cabinet - Google Patents

Abstract

The utility model provides an optical fiber distribution frame and optical fiber distribution cabinet, this optical fiber distribution frame includes protection box and a plurality of MPO adapters, the lateral wall of protection box is equipped with optic fibre entry and a plurality of mounting holes, optic fibre entry supplies many first optic fibre to stretch into in the protection box, the mounting hole corresponds the setting with the MPO adapter, all be equipped with on each MPO adapter with the second optic fibre of first optic fibre butt fusion; still be equipped with a plurality of fine units of dish in the protection box, it is a plurality of fine unit interval of dish sets up, the fine unit of dish is used for coiling respectively after the butt fusion first optic fibre with second optic fibre. The utility model provides an optical fiber distribution frame is applicable to the jump fine that has MPO to utilize low-cost multicore fusion spliced optical cable to reduce the laying cost of adopting the end-to-end optical cable that MPO connects.

Description

Optical fiber distribution frame and optical fiber distribution cabinet

Technical Field

The utility model relates to a communication equipment technical field especially relates to an optical fiber distribution frame and optic fibre distribution cabinet.

Background

Due to the rapid growth of internet communication technology and mobile communication technology, optical fibers are widely used as a main data communication medium in information communication systems. When the optical cable is connected with the indoor communication equipment, the optical cable needs to be switched through an optical fiber distribution frame.

The optical fiber distribution frame comprises a protection box and an adapter arranged on the protection box, one end of the adapter is connected with a tail fiber, the other end of the adapter is connected with a jump fiber, and the other end of the jump fiber is connected with an optical module connected with communication equipment. The bare wire stripped from the optical cable can extend into the protective box and is welded with the tail fiber to realize the communication between the optical cable and the communication equipment.

The optical module adopting the MPO (Multi-fiber Push On) joint has low cost and can be used for reducing the laying cost of the optical cable. However, there is no prior art field fused fiber distribution frame suitable for MPO splices.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present invention provide an optical fiber distribution frame and an optical fiber distribution cabinet, which are suitable for a jump fiber with an MPO connector, and can reduce the laying cost of an end-to-end optical cable with an MPO connector by using a low-cost multi-core fusion optical cable.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

a first aspect of the embodiments of the present invention provides an optical fiber distribution frame, which includes a protection box and a plurality of MPO adapters, wherein a side wall of the protection box is provided with an optical fiber inlet and a plurality of mounting holes, the optical fiber inlet is used for a plurality of first optical fibers to extend into the protection box, the mounting holes are arranged corresponding to the MPO adapters, and each MPO adapter is provided with a second optical fiber welded to the first optical fiber; still be equipped with a plurality of fine units of dish in the protection box, it is a plurality of fine unit interval of dish sets up, the fine unit of dish is used for coiling respectively after the butt fusion first optic fibre with second optic fibre.

In some embodiments, a fiber guiding assembly is further disposed in the protection box, the fiber guiding assembly includes a plurality of fiber guiding cavities for the first optical fibers to pass through, the fiber guiding cavities correspond to the fiber coiling units one to one, and the fiber guiding cavities extend towards the corresponding fiber coiling units.

In some embodiments, the fiber guiding assembly comprises a plurality of claw groups, and at least one claw group is correspondingly arranged on each fiber coiling unit; each jack catch group includes two elasticity jack catches of relative setting, and the region that two elasticity jack catches enclose constitutes lead fine chamber, two elasticity jack catches are used for the centre gripping solid first optic fibre.

In some embodiments, said optical fiber distribution frame further comprises a plurality of protective enclosures through which said first optical fibers pass, an end of each of said protective enclosures extending into said protective enclosure through said optical fiber access, a plurality of said protective enclosures extending toward different ones of said fiber coiling units.

In some embodiments, the protective sleeve is arranged in the fiber guide cavity corresponding to the fiber coiling unit in a penetrating mode.

In some embodiments, the protective sleeve is a flexible member.

In some embodiments, a spacer is arranged between two adjacent fiber coiling units, and a side wall of the spacer facing the fiber coiling units is an arc-shaped wall which is concave towards a side far away from the fiber coiling units.

In some embodiments, the spacer is a spacer plate, and the spacer plate is integrally formed with the protective case.

In some embodiments, a plurality of the mounting holes are located on the same side wall of the protection box, and the plurality of the mounting holes are arranged at intervals along the length direction of the side wall of the protection box; the plurality of fiber coiling units are arranged along the interval direction of the mounting holes.

In some embodiments, the fiber coiling unit includes a fiber coiling portion and a fiber blocking portion, one end of the fiber coiling portion is connected with an inner wall surface of the protection box, the other end of the fiber coiling portion is connected with the fiber blocking portion, and the fiber blocking portion protrudes out of an outer wall surface of the fiber coiling portion, so that the fiber blocking portion, the fiber coiling portion and the protection box jointly enclose a groove for accommodating the first optical fiber and the second optical fiber.

A second aspect of the embodiments of the present invention provides an optical fiber distribution cabinet, which comprises a protection cabinet and a plurality of the above first aspect, wherein the optical fiber distribution frame is arranged in the protection cabinet.

Compared with the prior art, the embodiment of the utility model provides an optical fiber distribution frame and optical fiber distribution cabinet have following advantage: the optical fiber distribution frame comprises a protection box and an MPO adapter arranged on the protection box, the MPO adapter is arranged on the protection box, the optical fiber distribution frame can be suitable for an optical module with lower cost, and the cost for laying the optical cable is lower.

Simultaneously, because MPO adapter is the multicore joint, optical distribution frame is applicable in the optical cable that optic fibre is in a great number, for example 12 core flat cable, like this, stretches into the first optic fibre in the protection box in a great number, and is corresponding, is equipped with a plurality of fine units of dish in the protection box to divide into groups many first optic fibres, and coil respectively on the fine unit of dish of difference, avoid appearing among the prior art a fine unit of dish and can not effectively coil the problem of many first optic fibres.

In addition to the technical problems, technical features constituting technical solutions, and advantageous effects brought by the technical features of the technical solutions described above, other technical problems that the optical fiber distribution frame and the optical fiber distribution cabinet provided by the embodiments of the present invention can solve, other technical features included in the technical solutions, and advantageous effects brought by the technical features will be further described in detail in specific embodiments.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic structural view of the cartridge of FIG. 1;

FIG. 3 is a schematic view of a plurality of fiber coiling units in FIG. 2;

fig. 4 is a schematic diagram of an optical cable according to an embodiment of the present invention connected to a communication device;

fig. 5 is a schematic structural diagram of a cabinet body in an optical fiber distribution cabinet according to an embodiment of the present invention.

Reference numerals:

100: an optical fiber distribution frame;

110: a protective case; 111: an optical fiber entrance; 112: mounting holes; 113: a box body;

120: an MPO adapter;

130: a fiber coiling unit; 131: a fiber coiling part; 132: a fiber blocking part;

140: a spacer; 141: an arcuate wall;

150: a jaw group;

200: a protective cabinet; 210: a cabinet body; 211: supporting the guide rail; 212: mounting lugs; 220: a cabinet door;

310: an optical cable; 320: a first optical fiber; 330: a second optical fiber; 340: jumping fibers; 341: a first MPO linker; 342: a second MPO linker; 350: a communication device; 360: an optical module.

Detailed Description

In order to make the above objects, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the prior art, an optical module may be connected to an optical cable or a communication device through different types of optical fiber connectors, and according to different types of interfaces of the optical fiber connectors, the optical fiber connectors may be classified into lc (lucent connector) connectors, MPO connectors, and the like. When an LC joint is used for laying an optical cable, in order to achieve the same or similar transmission rate as that when an MPO joint is used, optical devices such as a Wavelength Division Multiplexer (WDM) need to be equipped at the same time, which results in higher laying cost of the optical cable. However, there is no prior art fiber distribution frame suitable for MPO splices.

In view of this, embodiments of the present application provide an optical fiber distribution frame and an optical fiber distribution cabinet, where the optical fiber distribution frame includes a protection box and an MPO adapter disposed on the protection box, where the MPO adapter may be connected to an optical module having an MPO connector through a jumper fiber, and a laying cost of an optical cable is low. Meanwhile, because the MPO adapter is a multi-core joint, the number of the first optical fibers extending into the protection box is large, correspondingly, a plurality of fiber coiling units are arranged in the protection box, so that the plurality of first optical fibers are grouped and coiled, and the redundant optical fibers in the protection box are effectively fixed.

Fig. 1 is a schematic structural diagram of an optical fiber distribution frame according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of the cartridge in fig. 1. Fig. 3 is a schematic structural diagram of a plurality of fiber coiling units in fig. 2. Fig. 4 is a schematic diagram of the connection between the optical cable and the communication device according to the embodiment of the present invention.

Referring to fig. 1-4, the present embodiment provides an optical fiber distribution frame 100 for connecting optical cables 310 and communication equipment 350.

The optical fiber distribution frame 100 comprises a protection box 110, wherein the protection box 110 is hollow to form an accommodating cavity; the protective box 110 can be made of plastic, metal and the like, and is low in cost and easy to obtain; the cross-sectional shape of the protective box 110 may be rectangular, circular, etc., and this embodiment is not further limited.

Wherein, the lateral wall of protection box 110 is equipped with optic fibre entry 111, and optic fibre entry 111 supplies many first optic fibre 320 to stretch into in the protection box 110, and optic fibre entry 111 is the through-hole of the inside and outside both sides of intercommunication protection box 110, and the through-hole can be circular port, rectangular hole or bar hole etc. easily shaping.

It is understood that when the optical cable 310 is connected to the communication device 350, it is necessary to split the optical cable 310 and expose the optical fibers inside the optical cable, i.e. the split optical fibers are the first optical fibers 320, which are also called bare fibers, i.e. the plurality of first optical fibers 320 split from the optical cable 310 can extend into the interior of the protective casing 110 through the optical fiber inlets 111. In this way, the protection box 110 can protect the first optical fiber 320 extending into the protection box 110, and the first optical fiber 320 is prevented from being scratched, collided, and the like.

In some embodiments, the sidewall of the protective box 110 at other positions may be provided with a plurality of through holes to reduce the weight of the protective box 110, and to facilitate the observation of the inside of the protective box 110 through the through holes.

For the butt fusion of carrying out optic fibre, maintenance etc. conveniently, protection box 110 can include two parts, box body 113 and apron promptly, and the diapire and the lateral wall of box body 113 enclose into the holding chamber, and the opening part at the holding chamber is established to the apron lid. The cover plate and the box body 113 can be rotatably connected or detachably connected, so that the accommodating cavity of the box body 113 can be exposed by opening the cover plate. Wherein the fiber entrance 111 may be provided on the cassette body 113.

In some embodiments, the optical fiber distribution frame 100 further includes a plurality of MPO adapters 120, each end of the MPO adapters 120 has an MPO connector (not shown), the number of the MPO adapters 120 may be 6, 7, 8 or more, the number of the MPO adapters 120 may be limited according to the type of the communication device 350 to be connected, and the like, which is not further limited in this embodiment.

Correspondingly, the side wall of the protection box 110 is further provided with a plurality of mounting holes 112, the mounting holes 112 communicate with the inner side and the outer side of the protection box 110, the mounting holes 112 may also be arranged on the box body 113, wherein the mounting holes 112 are arranged corresponding to the MPO adapters 120, that is, the MPO adapters 120 are fixed in the mounting holes 112.

The MPO adapters 120 may be secured to the protective case 110 by bonding. In some embodiments, the MPO adapters 120 may also be fixed to the protection cassette 110 by a detachable connection, for example, the side wall surfaces of the MPO adapters 120 are snap-connected to the protection cassette 110, and the MPO adapters 120 are easy to detach.

In some embodiments, the number of MPO adapters 120 may be less than or equal to the number of mounting holes 112, for example, the number of mounting holes 112 may be 10, and the number of MPO adapters 120 may be 8, so that by providing a plurality of mounting holes 112, a user may increase or decrease the number of MPO adapters 120 accordingly, depending on the type of communication device 350, and the like.

It is understood that when the MPO adapters 120 are mounted on the protective cassette 110, one end of the MPO adapters 120 is located inside the protective cassette 110 and the other end protrudes outside the protective cassette 110. Each MPO adapter 120 is provided with a second fiber 330 fused with the first fiber 320, that is, one end of each MPO adapter 120 located in the protection box 110 is connected with the second fiber 330, the second fiber 330 is also called a pigtail, and the second fiber 330 is used for being fused with the first fiber 320 extending into the protection box 110, so that the first fiber 320 is connected with the MPO adapter 120.

Referring to fig. 4, the MPO adapter 120 is connected to the communication device 350 through a jumper fiber 340, wherein one end of the jumper fiber 340 is provided with a first MPO connector 341, the first MPO connector 341 is connected to an MPO connector on the MPO adapter 120, the other end of the jumper fiber 340 is provided with a second MPO connector 342, the second MPO connector 342 is connected to an MPO connector on an optical module 360, and the optical module 360 is connected to the communication device 350, so that the connection between the optical cable 310 and the communication device 350 can be realized.

That is, by providing the MPO adapters 120 on the optical fiber distribution frame 100, the optical fiber distribution frame 100 provided in the present embodiment can be applied to the optical modules 360 having MPO connectors, so as to reduce the laying cost of the optical cables 310.

Referring to fig. 2 and 3, in some embodiments, a plurality of fiber coiling units 130 are further disposed in the protection box 110, the fiber coiling units 130 are disposed at intervals, and the fiber coiling units 130 are respectively used for coiling the fused first optical fiber 320 and the fused second optical fiber 330.

For convenience of description, the portion of the optical fiber received in the protection box 110 after the first optical fiber 320 is fusion-spliced with the second optical fiber 330 may be referred to as a redundant optical fiber. Therefore, the redundant optical fibers can be regularly wound in the protection box 110, the conditions that the redundant optical fibers are knotted and the like are avoided, and the wiring in the protection box 110 is regular.

Because the MPO adapter 120 is a multi-core joint, the MPO adapter 120 can be simultaneously welded to the plurality of first optical fibers 320, and the welding efficiency is high. Thus, the optical distribution frame 100 of the present embodiment may be adapted for use with optical cables 310 having a greater number of optical fibers, such as 12-fiber flat cables, and may have a higher communication capacity.

Meanwhile, the optical cable 310 with a larger number of optical fibers may also result in a larger number of redundant optical fibers in the protection box 110, and accordingly, the number of the fiber winding units 130 in the protection box 110 is plural, for example, two, three or more, in this embodiment, the example of setting four fiber winding units 130 in the protection box 110 is explained.

Through setting up a plurality of fiber coiling units 130, can be with many redundant optic fibre groups, the redundant optic fibre of different groups coils respectively on different fiber coiling units 130, and like this, the quantity of the redundant optic fibre of coiling on every fiber coiling unit 130 is less, can not coil the situation of many redundant optic fibre simultaneously when avoiding appearing setting up a fiber coiling unit in protection box 110.

Moreover, by grouping the plurality of redundant optical fibers, after the first optical fiber 320 and the second optical fiber 330 in one group are welded and coiled, the other group of the first optical fiber 320 and the second optical fiber 330 are welded and coiled, that is, the number of redundant optical fibers operated by an assembler at a single time is small, the operation is convenient, and the assembly efficiency is high.

Considering that a plurality of first optical fibers 320 need to be grouped after extending into the protection box 110 and extend toward different fiber coiling units 130, in order to avoid mutual winding among the plurality of first optical fibers 320, in some embodiments, a fiber guide assembly is further disposed in the protection box 110, the fiber guide assembly includes a plurality of fiber guide cavities for the first optical fibers 320 to pass through, the fiber guide cavities correspond to the fiber coiling units 130 one by one, that is, each fiber coiling unit 130 is correspondingly provided with one fiber guide cavity, the plurality of fiber guide cavities are isolated from each other, and each fiber guide cavity extends toward the corresponding fiber coiling unit 130.

Thus, the plurality of first optical fibers 320 extending into the protective box 110 can be grouped, wherein one group of first optical fibers 320 extends into the fiber guide cavity and extends towards the corresponding fiber coiling unit 130 through the fiber guide cavity, that is, the first optical fibers 320 in the fiber guide cavity can form a guiding limit, so as to limit the first optical fibers 320 in different groups to extend towards different directions, and the first optical fibers 320 in different groups are separated from each other, thereby avoiding the first optical fibers 320 in different groups from being intertwined with each other.

The fiber guiding assembly may have different structures, for example, the fiber guiding assembly may be a protruding structure formed in the protection box 110, and the fiber guiding cavity is a groove formed in the protruding structure, so that the structure is simple. In some embodiments, the protruding structure may be one, and a plurality of fiber guiding cavities are arranged on the protruding structure; alternatively, each fiber coiling unit 130 can be provided with a corresponding protruding structure, and the space occupied by the protruding structure in the protective box 110 is small.

In some embodiments, referring to fig. 3, the fiber guiding assembly may further include a plurality of claw groups 150, and at least one claw group 150 is correspondingly disposed on each fiber coiling unit 130.

Illustratively, two claw groups 150 are correspondingly arranged on each fiber coiling unit 130, and the two claw groups 150 are arranged on the optical fiber path at the fiber inlet side of the corresponding fiber coiling unit 130 at intervals. In order to simplify the structure of the protection box 110, a group of claws 150 may be disposed corresponding to each fiber winding unit 130, and the claws 150 are disposed on the fiber inlet side of the corresponding fiber winding unit 130. In some embodiments, the number of the claw groups 150 correspondingly disposed on each fiber coiling unit 130 may also be different, and this embodiment is not further limited.

Each of the clamping jaw sets 150 includes two elastic clamping jaws disposed oppositely, the area surrounded by the two elastic clamping jaws forms a fiber guiding cavity, the elastic clamping jaws can be of a bendable rod-shaped structure, the structure is simple, and the elastic deformation of bending is easy to occur.

Two elasticity jack catchs towards the one side bending type extension that is close to each other, and the free end of elasticity jack catch sets up relatively to constitute the joint mouth, like this, through keeping away from each other lateral buckling with two elasticity jack catchs orientation, can enlarge the opening size of this joint mouth, and put into or take out first optic fibre 320 via this joint mouth, convenient operation.

The elastic latch may be made of the same material as the protection box 110, such as plastic, metal, etc., and is integrally formed with the protection box 110.

It can be understood that the plurality of first optical fibers 320 may be loosely received in the corresponding fiber guiding cavities, that is, the cross-sectional area of the fiber guiding cavity is larger than the sum of the cross-sectional areas of the plurality of first optical fibers 320 therein, so that the first optical fibers 320 may be conveniently placed in the fiber guiding cavities.

In some embodiments, the two elastic claws are used to clamp and fix the first optical fiber 320, that is, after the plurality of first optical fibers 320 are placed in the fiber guiding cavity, the elastic claws can be in an elastic deformation state and press against the first optical fibers 320 through their own elastic deformation.

Therefore, the first optical fibers 320 can be effectively fixed in the corresponding fiber guide cavities, the fixing stability of the first optical fibers 320 is high, and the first optical fibers 320 can be prevented from being separated from the corresponding fiber guide cavities due to the touch of assembly personnel, the movement of the optical fiber distribution frame 100 and other factors.

Considering that the first optical fiber 320 may be bent and the first optical fiber 320 may abut against the sidewall of the optical fiber entrance 111 when the first optical fiber 320 extends into the protective box 110, in some embodiments, the optical fiber distribution frame 100 further includes a plurality of protective sleeves (not shown) for the first optical fiber 320 to pass through, the protective sleeves are hollow tubular structures, an end of each protective sleeve extends into the protective box 110 through the optical fiber entrance 111, that is, one end of each protective sleeve is located inside the protective box 110, the other end of each protective sleeve is located outside the protective box 110, and the protective sleeves span both inside and outside of the sidewall of the protective box 110, so that the first optical fiber 320 is isolated from the protective box 110 by the protective sleeves, and the first optical fiber 320 is prevented from being scratched or broken.

The plurality of protective sleeves extend into the protective box 110 through the optical fiber inlet 111, and the plurality of protective sleeves can be clamped and fixed on the inner wall surface of the optical fiber inlet 111 in a parallel extrusion manner.

For ease of assembly, the aperture area of the fiber entrance opening 111 may be larger than the sum of the tube areas of the plurality of protective sleeves, such that the protective sleeves are relatively loosely disposed within the fiber entrance opening 111 and the protective sleeves may be relatively easily extended into or out of the fiber entrance opening 111. At this time, the plurality of protective sleeves may be fixed to the protective box 110 by clamping, binding, or the like, so as to effectively fix the protective sleeves to the first optical fibers 320.

It is understood that a plurality of first optical fibers 320 may be simultaneously threaded through the protective sheath, i.e., the plurality of first optical fibers 320 stripped from the fiber optic cable 310 may be grouped by the protective sheath. Accordingly, the plurality of protective sleeves extend towards different fiber winding units 130, that is, the protective sleeves can correspond to the fiber winding units 130 to wind the plurality of first optical fibers 320 in groups, which is convenient to operate.

Wherein the number of protective sleeves may be less than the number of fiber winding units 130, such that the first optical fibers 320 in some of the protective sleeves may be regrouped to wind the first optical fibers 320 around different fiber winding units 130. Alternatively, the protective sheath may be disposed to correspond to a portion of the fiber winding unit 130, and in this case, the portion of the fiber winding unit 130 may not wind the redundant optical fiber.

In some embodiments, the number of protective sleeves may also be greater than or equal to the number of fiber winding units 130, for example, the number of protective sleeves is greater than or equal to four, so that each fiber winding unit 130 may correspond to at least one protective sleeve. And when the fiber coiling unit 130 corresponds to a plurality of protective sleeves, a plurality of protective sleeves can be arranged in the corresponding fiber guiding cavity in a penetrating manner.

Where the protective sleeve may have different lengths, the first optical fiber 320 may extend out of the protective sleeve and into the fiber cavity, for example, when the protective sleeve is not extended to the position of the jaw set 150.

In some embodiments, the protective sheath is inserted into the fiber guiding cavity of the corresponding fiber coiling unit 130, so that the length of the protective sheath is larger and extends into the corresponding fiber guiding cavity. At this time, the first optical fiber 320 is isolated from the fiber guiding assembly by the protective sleeve, so that the fiber guiding assembly can be prevented from scratching the first optical fiber 320, and the safety of the first optical fiber 320 is high.

It will be appreciated that since different fiber winding units 130 are located at different positions of the protective box 110, the lengths of the portions of the different protective sleeves located within the protective box 110 may not be equal.

The lengths of the plurality of protective sleeves can be set differently, so that different protective sleeves correspond to different fiber coiling units 130, and the manufacturing cost is low.

In some embodiments, the plurality of protective sleeves may have the same length, i.e., the protective sleeves may constitute a common standard. Thus, when the optical fiber is fusion-spliced, an assembler does not need to distinguish the corresponding relationship between the protective sleeve and the fiber winding unit 130, and the assembly efficiency is high.

At this time, when the length of the inner part of the protection sleeve located in the protection box 110 is longer, the length of the outer part of the protection sleeve located in the protection box 110 is shorter, as long as the length of the protection sleeve is longer than the distance between the fiber guiding cavity and the optical fiber inlet 111.

In some embodiments, the protective sleeve is a flexible member, and the protective sleeve has a low stiffness and is susceptible to deformation.

Thus, after the first optical fiber 320 extends into the protective sleeve, even if the first optical fiber 320 touches and abuts against the protective sleeve, the protective sleeve does not scratch the first optical fiber 320, and the first optical fiber 320 has high safety. Meanwhile, after the protection tube is installed at the optical fiber inlet 111 of the protection box 110, the protection tube is in contact with the inner wall surface of the optical fiber inlet 111, and the first optical fiber 320 can be buffered through flexible deformation of the protection tube.

Even if the protection sleeve is bent, the bending difficulty of the first optical fiber 320 can be improved through the protection sleeve, the bending degree of the first optical fiber 320 is reduced, and excessive bending deformation of the first optical fiber 320 is avoided.

In some embodiments, the protective sleeve may also be a transparent member, so that when the assembling personnel extends the first optical fiber 320 into the protective sleeve, the assembling personnel can observe the assembling process of the first optical fiber 320 through the wall of the protective sleeve, for example, the assembling personnel can observe the real-time moving position of the end of the first optical fiber 320, whether the first optical fiber 320 is jammed inside the protective sleeve, whether the first optical fiber 320 in the protective sleeve is broken or damaged, and the like, which is convenient for assembling.

The flexible member may be made of Polyvinyl chloride (PVC), Polyurethane (PU), etc., and is low in cost and easy to obtain.

Considering that when the redundant optical fibers are wound on the fiber winding units 130, the redundant optical fibers are in a loose state, so that the redundant optical fibers wound on two adjacent fiber winding units 130 are mutually crossed and stacked, and further, the redundant optical fibers of two adjacent fiber winding units 130 are possibly wound and knotted, and the redundant optical fibers are not easily disassembled.

In some embodiments, referring to fig. 2, a partition 140 is disposed between two adjacent fiber winding units 130, so that the partition 140 can separate an area between the two adjacent fiber winding units 130 into two independent portions, that is, the fiber winding area in the protection box 110 can be divided into a plurality of independent areas corresponding to the fiber winding units 130, and the redundant fibers wound on the fiber winding units 130 are limited in the corresponding fiber winding areas, so as to prevent the redundant fibers on the adjacent fiber winding units 130 from being entangled with each other.

The sidewall of the spacer 140 facing the fiber coiling unit 130 is a smooth wall surface to prevent the redundant optical fiber from being scratched by the spacer 140. The side wall of the spacer 140 facing the fiber coiling unit 130 can be a planar wall surface, and the structure is simple.

In some embodiments, the sidewall of the spacer 140 facing the fiber coiling unit 130 is an arc-shaped wall 141, and the arc-shaped wall 141 is concave toward the side away from the fiber coiling unit 130. Thus, even if the redundant optical fiber coiled on the fiber coiling unit 130 is contacted with the arc-shaped wall 141, the contact area between the redundant optical fiber and the arc-shaped wall 141 is larger, and the situation that the contact force at the contact position of the redundant optical fiber and the spacer 140 is larger and the redundant optical fiber is damaged due to the smaller contact area between the redundant optical fiber and the spacer 140 can be avoided.

In some embodiments, the isolation member 140 is an isolation plate, and the isolation member 140 has a simple structure and a low manufacturing cost.

Wherein, the isolating piece 140 can be detachably connected in the shell by clamping, screwing and the like. In some embodiments, the isolation plate is integrally formed with the protective case 110, which facilitates molding.

As for the mounting hole 112, a plurality of mounting holes 112 may be provided on different sidewalls of the shield case 110. In some embodiments, referring to fig. 1 to 3, the plurality of mounting holes 112 are located on the same sidewall of the protection box 110, and the plurality of mounting holes 112 are disposed at intervals along the length direction of the sidewall of the protection box 110. Thus, the protective case 110 has a simple structure and is easily molded.

Correspondingly, a plurality of MPO adapters 120 are installed on the same side wall of the protection box 110, and a plurality of jumper fibers 340 connected with the MPO adapters 120 are also located on the same side of the optical distribution frame 100, so that the wiring of the optical distribution frame 100 is regular.

For the plurality of fiber coiling units 130, the plurality of fiber coiling units 130 may be arranged in a vertical and horizontal manner in the protective box 110, or may be arranged in a ring shape in the protective box 110 (not shown) to adapt to different arrangement spaces in the protective box 110.

In some embodiments, referring to fig. 2 and 3, the fiber coiling units 130 may be further arranged along the interval direction of the mounting holes 112, so that the fiber coiling units 130 may correspond to one or more adjacent MPO adapters 120, redundant fibers on the fiber outlet side of the fiber coiling units 130 may be connected to the corresponding MPO adapters 120, routing of the redundant fibers between the fiber coiling units 130 and the MPO adapters 120 is relatively regular, and the interior of the protection box 110 is relatively simple.

In some embodiments, the fiber coiling unit 130 includes a fiber coiling portion 131 and a fiber blocking portion 132, the fiber coiling portion 131 may be a cylindrical structure protruding out of a side wall of the protection box 110, one end of the fiber coiling portion 131 is connected to an inner wall surface of the protection box 110, and the other end of the fiber coiling portion 131 is connected to the fiber blocking portion 132, that is, the fiber blocking portion 132 is disposed at a distance from the side wall of the protection box 110, so that the fiber blocking portion 132, the fiber coiling portion 131 and the protection box 110 may protrude out of an outer wall surface of the fiber coiling portion 131, so that the fiber blocking portion 132, the fiber coiling portion 131 and the protection box 110 together form a groove for accommodating the first optical fiber 320 and the second optical fiber 330. When the redundant optical fiber is wound on the fiber winding unit 130, the redundant optical fiber is wound on the outer wall surface of the fiber winding part 131 and is limited between the fiber blocking part 132 and the side wall of the protection box 110.

In some embodiments, the fiber coiling unit 130 may also be a frame structure to reduce the weight of the optical distribution frame 100. For example, the fiber coiling portion 131 is a thin-walled cylindrical structure, the fiber blocking portion 132 is a plurality of fiber blocking pieces, and the plurality of fiber blocking pieces are arranged at intervals along the circumferential direction of the fiber coiling portion 131, so that the coiling condition of the redundant optical fiber can be observed through gaps among the plurality of fiber blocking pieces.

Fig. 5 is a schematic structural diagram of a cabinet body in an optical fiber distribution cabinet according to an embodiment of the present invention.

Referring to fig. 5, the present embodiment further provides an optical fiber distribution cabinet, where the optical fiber distribution cabinet includes a protection cabinet 200 and a plurality of optical fiber distribution frames 100, where the structure, beneficial effects, and working principles of the optical fiber distribution frames 100 have been described in the above embodiments, and are not described in detail in this embodiment.

The protection cabinet 200 can be a metal part, has high strength, and can form good protection for the internal optical fiber distribution frame 100.

To facilitate removal and installation of the optical fiber distribution frame 100, the protective cabinet 200 may include a cabinet 210 and a cabinet door 220, with a plurality of optical fiber distribution frames 100 mounted within the cabinet 210, and the cabinet door 220 covering an opening of the cabinet 210. The cabinet door 220 may be rotatably connected to the cabinet 210 and connected to the cabinet 210 through a locking member such as a buckle, or the cabinet door 220 may be detachably connected to the cabinet 210.

In some embodiments, the outer wall of the cabinet 210 may further include a connecting member, such as a mounting ear 212, for fixing the cabinet 210 at a predetermined position on the wall.

Wherein, a plurality of optical fiber distribution frames 100 can be stacked in the protection cabinet 200, and one side of the optical fiber distribution frame 100, on which the MPO adapter 120 is arranged, is exposed at the opening side of the cabinet body 210 so as to be connected with the jumping fiber 340.

In some embodiments, each optical fiber distribution frame 100 is removably disposed in the protection cabinet 200, such that any two adjacent optical fiber distribution frames 100 are spaced apart from each other, and a user can access any one of the optical fiber distribution frames 100 as desired without affecting the other optical fiber distribution frames 100.

In some embodiments, a plurality of supporting guide rails 211 are disposed in the cabinet 210, and the optical fiber distribution frame 100 is placed on the supporting guide rails 211, so that an assembler can push and pull the optical fiber distribution frame 100 by applying force, and the optical fiber distribution frame 100 can move relative to the protection cabinet 200, which is convenient to operate. And through detaining cabinet door 220 and establishing the opening part at cabinet body 210, cabinet door 220 can constitute spacingly to optical fiber distribution frame 100, avoids optical fiber distribution frame 100 to drop.

The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (11)

1. An optical fiber distribution frame is characterized by comprising a protection box and a plurality of MPO adapters, wherein the side wall of the protection box is provided with an optical fiber inlet and a plurality of mounting holes, a plurality of first optical fibers are inserted into the protection box through the optical fiber inlet, the mounting holes are arranged corresponding to the MPO adapters, and each MPO adapter is provided with a second optical fiber which is welded with the first optical fibers;

still be equipped with a plurality of fine units of dish in the protection box, it is a plurality of fine unit interval of dish sets up, the fine unit of dish is used for coiling respectively after the butt fusion first optic fibre with second optic fibre.

2. The optical fiber distribution frame of claim 1, wherein a fiber guiding assembly is further disposed in the protective box, the fiber guiding assembly includes a plurality of fiber guiding cavities for the first optical fibers to pass through, the fiber guiding cavities correspond to the fiber coiling units one to one, and the fiber guiding cavities extend toward the corresponding fiber coiling units.

3. The optical fiber distribution frame of claim 2, wherein the fiber guiding assembly comprises a plurality of jaw groups, at least one of the jaw groups being disposed for each of the fiber coiling units; each jack catch group includes two elasticity jack catches of relative setting, and the region that two elasticity jack catches enclose constitutes lead fine chamber, two elasticity jack catches are used for the centre gripping solid first optic fibre.

4. The optical fiber distribution frame of claim 2 further comprising a plurality of protective conduits for passage of the first optical fibers, an end of each of the protective conduits extending into the protective enclosure via the optical fiber access opening, the plurality of protective conduits extending toward different ones of the fiber coiling units.

5. The optical fiber distribution frame of claim 4, wherein the protective conduit is disposed through the fiber guide cavity corresponding to the fiber coiling unit.

6. The optical fiber distribution frame of claim 5, wherein the protective enclosure is a flexible member.

7. Optical fibre distribution frame as claimed in any of claims 1-6, wherein spacers are arranged between two adjacent fibre coiling units, the side walls of the spacers facing the fibre coiling units being curved walls, the curved walls being concave towards the side facing away from the fibre coiling units.

8. Optical fiber distribution frame as claimed in claim 7 wherein the spacers are spacers, which are integrally formed with the protective box.

9. The optical fiber distribution frame of any of claims 1-6, wherein a plurality of the mounting holes are located on the same side wall of the protective enclosure and are spaced apart along a length of the side wall of the protective enclosure;

the plurality of fiber coiling units are arranged along the interval direction of the mounting holes.

10. The optical fiber distribution frame of any one of claims 1-6, wherein the fiber coiling unit comprises a fiber coiling portion and a fiber blocking portion, one end of the fiber coiling portion is connected with an inner wall surface of the protective box, the other end of the fiber coiling portion is connected with the fiber blocking portion, and the fiber blocking portion protrudes out of an outer wall surface of the fiber coiling portion, so that the fiber blocking portion, the fiber coiling portion and the protective box jointly enclose a groove for accommodating the first optical fiber and the second optical fiber.

11. An optical fiber distribution cabinet comprising a protective cabinet and a plurality of optical fiber distribution frames as defined in any one of claims 1-10, each of said optical fiber distribution frames being removably disposed within said protective cabinet.

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