An optical cable distribution box

Abstract

The present invention relates to an optical cable distribution box, which comprises a box body. A cable inlet unit is provided at the bottom of the box body. It is characterized in that: a backplane is arranged in the area above the cable inlet unit. The backplane has a U-shaped structure with the same reverse shape, including a first U-shaped part with an opening facing away from the cable inlet unit and a second U-shaped part with an opening facing the cable inlet unit. At least one row of splicing and fiber storage tray groups arranged in the vertical direction is provided on the second U-shaped part. The first U-shaped part divides the box body into an optical splitter area in the inner space and a wiring area in the outer space. The inner space of the first U-shaped part is communicated with the second U-shaped part. Compared with the prior art, the advantages of the present invention are as follows: the first U-shaped part and the second U-shaped part of the backplane can form an independent and compact layout space for the optical splitter area, the wiring area and the splicing area, with a small occupied space, and having the advantages of being more beautiful, having clear zoning, and making the fiber routing more orderly.

Description

Technical Field

[0001] The invention relates to an optical cable matching device, in particular to an optical cable junction box capable of running fibers at the back and hiding cables. Background Art

[0002] The optical cable junction box is a junction device that provides optical cable termination and jumpering for the trunk layer optical cable and the distribution layer optical cable. After the optical cable is introduced into the optical cable junction box, it is fixed, terminated, and fiber-matched, and then the trunk layer optical cable and the distribution layer optical cable are connected by using jumpers. However, the optical cable junction box needs to be installed outdoors. In the past, when it was installed outdoors, the outdoor non-jumping optical cable fiber distribution equipment was limited to the lower line, and it was bulky and the wiring was chaotic, which was not conducive to future maintenance and operation. In order to solve the above technical problems, a Chinese invention patent with patent number ZL201710999778.1 (authorization announcement number CN107678111B) entitled "An Optical Cable Junction Box" includes a box body and a distribution frame for collecting optical cables located in the box body, the box body includes a box door located on the front side of the box body, the box body also includes a rear cover plate and an upper box cover that can rotate relative to the rear cover plate, and a plurality of lifting structures are arranged in the box body, the distribution frame is supported on the lifting structure, and the lifting structure can at least partially push the distribution frame out from the top of the box body, and the optical cable junction box can move the optical cable out of the box body when the optical cable needs to be operated, avoiding operation inside the box body, reducing the volume occupied by the operation, and further when adding a distribution frame, the volume of the box body will not be increased too much, but the patent only solves the problem of the operating volume of the optical cable junction box, but does not solve the problem that the wiring is still chaotic, so it is necessary to further improve the optical cable junction box. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an optical cable junction box which can effectively solve the problem of chaotic wiring in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: the optical cable junction box includes a box body, and an optical cable introduction unit is provided at the bottom of the box body, which is characterized in that a back plate is provided in the area above the optical cable introduction unit, and the back plate is in an inversely identical U-shaped structure, including a first U-shaped portion with an opening away from the optical cable introduction unit and a second U-shaped portion with an opening facing the optical cable introduction unit, and at least one row of fusion fiber storage disk groups arranged in a vertical direction is provided on the second U-shaped portion, and the first U-shaped portion divides the box body into an optical splitter area located in an inner space and a wiring area located in an outer space, and the inner space of the first U-shaped portion is connected to the second U-shaped portion, so that the optical cable can directly enter the optical splitter area for optical splitting operation after being fused by the fusion fiber storage disk group.

[0005] To facilitate the optical splitting operation by the operator in the optical splitter area, preferably, the lower end of the backplane is hingedly arranged relative to the box body to realize the downward flipping of the backplane from top to bottom. Through the flipping of the backplane, the operator standing in front of the optical cable cross-connect box can sleeve the optical cable, which has been fixed and stripped on the optical cable inlet unit, with a sleeve to form a bare fiber with a sleeve. The bare fiber with a sleeve directly enters the splicing storage fiber tray in the splicing area for splicing. After splicing, it can directly enter the optical splitter area for optical splitting or patching operation. All optical splitting or patching operations are carried out in the optical splitter area located in the inner space for patching or optical splitting, which makes the fiber routing more orderly and the fiber routing cannot be seen from the outside of the optical cable cross-connect box, having the advantages of more beautiful appearance and clear zoning; in addition, the backplane adopts a flipping structure, and the flipping angle can be flexibly controlled, solving the problems of plugging and maintenance operations.

[0006] To better tie and fix the optical cable, preferably, the optical cable inlet unit includes an inlet through which the optical cable extends upward from bottom to top. There is an optical cable fixing area between the inlet and the bottom row of the splicing storage fiber tray group. The optical cable fixing area includes U-shaped fixing plates arranged at intervals from outside to inside in sequence. Adjacent U-shaped fixing plates are connected by two vertical parts, and at least two U-shaped notches are respectively partially opened on the transverse parts of each U-shaped fixing plate to form T-shaped ports for tying the optical cable columns. The optical cable can be tied by the T-shaped ports for tying the optical cable columns in the optical cable fixing area to better fix the optical cable.

[0007] To better guide the fixed optical cable upward into the splicing storage fiber tray group, preferably, on the transverse parts of each U-shaped fixing plate, fixing reinforcement cores protruding from their surfaces are provided corresponding to each T-shaped port for tying the optical cable column, and through holes for the optical cable to pass through are opened on the fixing reinforcement cores.

[0008] To save space and splice more bare fibers, preferably, the splicing storage fiber tray group includes at least two splicing storage fiber trays that can overlap and rotate relative to the second U-shaped part. In the normal state, multiple splicing storage fiber trays are stacked together, which can save space. When an operation needs to be performed on a certain splicing storage fiber tray, only the splicing storage fiber tray in the splicing storage fiber tray group needs to be turned up for operation.

[0009] In order to more orderly guide the pigtail after fusion splicing into the optical splitter area for optical splitting or cross-connecting operations, preferably, the second U-shaped part includes a second vertical wall shared with the first U-shaped part. A through hole for connecting the two is provided on the second vertical wall, and a wire management rack is arranged on the periphery of the through hole. The wire management rack includes at least two vertically arranged wire management rings, and each wire management ring is provided with an opening for the pigtail fused by the fusion splicing fiber storage tray to be inserted. During use, it is only necessary to insert the pigtail after fusion splicing into the openings of each wire management ring.

[0010] Furthermore, the first U-shaped part includes a first vertical wall opposite to the second vertical wall of the second U-shaped part, and at least two fiber winding posts for storing fibers are arranged on the first vertical wall from top to bottom. The fiber winding posts can be used as a fiber storage area for storing pigtails in a coil.

[0011] Furthermore, a parking area is also arranged around the wiring area. The parking area includes a plurality of parking area installation bars, and a plurality of parking positions for plugging the plugs of the pigtails are arranged on the parking installation bars. The plugs of the pigtails that do not need to be connected can be plugged into the parking positions of the parking installation bars.

[0012] Compared with the prior art, the advantages of the present invention are as follows: All optical splitting or cross-connecting operations in the optical cable distribution box are carried out for cross-connecting or optical splitting in the optical splitter area located in the inner layer space. In the wiring area located in the outer layer space, the fiber optic plugs of the pigtails that need to be connected to the user side can be plugged into the front adapters. In this way, no fiber routing can be seen outside the optical cable distribution box, which has the advantages of being more beautiful, having clear zoning, and making the fiber routing more orderly. In addition, the first U-shaped part and the second U-shaped part of the backplane can form an independent and compact layout space for the optical splitter area, the wiring area, and the fusion splicing area, with a small occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the backplane of the optical cable distribution box in the flipped state in the embodiment of the present invention;

[0014] Figure 2 is Figure 1 a schematic structural diagram with the structure of an angle of the box body omitted;

[0015] Figure 3 is Figure 1 a schematic structural diagram with the structure of another angle of the box body omitted;

[0016] Figure 4 is a schematic structural diagram of the optical cable fixing area in the embodiment of the present invention;

[0017] Figure 5 is a schematic structural diagram of the wire management rack in the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0019] As Figures 1 to 5 shown, it is the best embodiment of the present invention. The optical cable distribution box in this embodiment includes a box body 1. A cable inlet unit 2 is provided at the bottom of the box body 1. In the area above the cable inlet unit 2, a backplane 3 is provided. The backplane 3 has a U-shaped structure with the same reverse shape, including a first U-shaped part 31 with an opening facing away from the cable inlet unit 2 and a second U-shaped part 32 with an opening facing the cable inlet unit 2. At least one row of splicing and fiber storage tray groups 4 arranged in the vertical direction is provided on the second U-shaped part 32. The first U-shaped part 31 divides the box body 1 into an optical splitter area 5 in the inner space and a wiring area 10 in the outer space. The inner space of the first U-shaped part 31 is communicated with the second U-shaped part 32, so that after the optical cable is spliced by the splicing and fiber storage tray groups 4, it can directly enter the optical splitter area 5 for optical splitting operation. All optical splitting or patching operations in this optical cable distribution box are carried out for patching or optical splitting in the optical splitter area 5 in the inner space. In the wiring area 10 in the outer space, the fiber plugs of the pigtails for the user side to be opened can be inserted into the front adapters. In this way, the fiber routing cannot be seen outside the optical cable distribution box, which has the advantages of being more beautiful, having clear zoning, and making the fiber routing more orderly. In addition, the first U-shaped part 31 and the second U-shaped part 32 of the backplane 3 can form an independent and compact layout space for the optical splitter area 5, the wiring area 10 and the splicing area, with a small occupied space.

[0020] Specifically, to facilitate the optical splitting operation of the operator in the optical splitter area 5, the lower end of the backplane 3 is hinged relative to the box body 1 to realize the downward flipping of the backplane 3 from top to bottom. Through the flipping of the backplane 3, the operator standing in the optical cable distribution box can sleeve the optical cable fixed and stripped on the optical cable introduction unit 2 with a sleeve to form a bare fiber with a sleeve, and the bare fiber with a sleeve enters the splicing storage fiber tray in the splicing area for direct splicing. After splicing, it can directly enter the optical splitter area 5 for optical splitting or patching operations. All optical splitting or patching operations are carried out in the optical splitter area 5 located in the inner space for patching or optical splitting, which makes the fiber routing more orderly and the fiber routing cannot be seen outside the optical cable distribution box, having the advantages of being more beautiful and having clear partitions; in addition, the backplane 3 adopts a flipping structure to flexibly control the flipping angle, solving the problems of plugging and maintenance operations. In order to better tie and fix the optical cable, the optical cable introduction unit 2 of this embodiment includes an inlet 21 for the optical cable to extend upward from bottom to top. There is an optical cable fixing area 6 between the inlet 21 and the bottom row of the splicing storage fiber tray group 4. The optical cable fixing area 6 includes U-shaped fixing plates 61 arranged at intervals in sequence from outside to inside. The adjacent U-shaped fixing plates 61 are connected by two vertical parts, and at least two U-shaped notches are respectively locally formed on the transverse parts of each U-shaped fixing plate 61 to form T-shaped cable tying posts 611 for tying the optical cable. The optical cable can be tied by the T-shaped cable tying posts 611 in the optical cable fixing area 6 to better fix the optical cable. In order to better guide the fixed optical cable upward into the splicing storage fiber tray group 4, a fixing reinforcement core 62 protruding from its surface is provided on the transverse part of each U-shaped fixing plate 61 corresponding to each T-shaped cable tying post 611, and a through hole 621 for the optical cable to pass through is formed on the fixing reinforcement core 62. In order to save space and splice more bare fibers, the splicing storage fiber tray group 4 of this embodiment includes at least two splicing storage fiber trays that can overlap each other and rotate relative to the second U-shaped part 32. In the normal state, multiple splicing storage fiber trays are stacked together, which can save space. When an operation needs to be performed on a certain splicing storage fiber tray, only need to turn up the splicing storage fiber tray in the splicing storage fiber tray group 4 to perform the operation. In order to more orderly guide the spliced pigtails into the optical splitter area 5 for optical splitting or patching operations, the second U-shaped part 32 includes a second vertical wall 321 shared with the first U-shaped part 31. A through hole 3211 for connecting the two is formed on the second vertical wall 321, and a cable management rack 7 is arranged on the periphery of the through hole 3211. The cable management rack 7 includes at least two vertically arranged cable management rings 71, and an opening 711 for the pigtail spliced by the splicing storage fiber tray to be inserted is formed on each cable management ring 71. When in use, only need to insert the spliced pigtail into the opening 711 of each cable management ring 71.Finally, the first U-shaped part 31 includes a first vertical wall 311 disposed opposite to the second vertical wall 321 of the second U-shaped part 32. At least two fiber winding posts 8 for storing fibers are arranged on the first vertical wall 311 from top to bottom. The fiber winding posts 8, as a fiber storage area, can be used for inventorying pigtails. A berthing area 9 is also arranged around the wiring area 10. The berthing area 9 includes a plurality of berthing area 9 mounting bars, and a plurality of berthing positions for plugging the plugs of the pigtails are provided on the berthing mounting bars. The plugs of the pigtails that do not need to be connected can be plugged into the berthing positions of the berthing mounting bars.

[0021] In summary, the fiber routing path inside the optical cable distribution box is as follows: After the backbone end and the user end optical cables enter from the bottom of the box body 1, they are fixed and stripped on the optical cable introduction unit 2, and then sleeved with a sleeve to form a bare fiber with a sleeve. The bare fiber with a sleeve enters the splicing and fiber storage tray in the splicing area and is directly spliced. When an operation needs to be performed on a certain splicing and fiber storage tray, only the splicing and fiber storage tray in the splicing and fiber storage tray group 4 needs to be turned up for operation. After splicing, it can directly enter the optical splitter area 5 through each cable management loop 71 of the cable management rack 7 for optical splitting or cross-connecting operations, and then be stored on the fiber winding posts 8 in the fiber storage area. The fiber plugs of the pigtails of the user end that do not need to be connected can be berthed on the berthing area 9 mounting bars in the berthing area 9, and the fiber plugs of the pigtails of the user end that need to be connected are inserted into the adapters in the wiring area 10 in front of the optical splitter area 5. After the backbone end pigtail is directly spliced with the backbone end bare fiber in the splicing and fiber storage tray in the backbone splicing area, the backbone end pigtail is led out from the left side of the splicing and fiber storage tray and enters the optical splitter box on the flip-back type backplane 3 along a path similar to that of the user end pigtail.

Claims

1. An optical cable distribution box, comprising a box body (1), wherein a cable introduction unit (2) is provided at the bottom of the box body (1), and it is characterized in that: A backplane (3) is provided in the area above the optical cable inlet unit (2). The backplane (3) has a U-shaped structure with opposite shapes, including a first U-shaped part (31) with an opening facing away from the optical cable inlet unit (2) and a second U-shaped part (32) with an opening facing the optical cable inlet unit (2). At least one row of splicing and fiber storage tray groups (4) arranged vertically is provided on the second U-shaped part (32). The first U-shaped part (31) divides the box body (1) into an optical splitter area (5) in the inner space and a wiring area (10) in the outer space. The inner space of the first U-shaped part (31) is communicated with the second U-shaped part (32), so that after the optical cable is spliced through the splicing and fiber storage tray groups (4), it can directly enter the optical splitter area (5) for optical splitting operation. The lower end of the backplane (3) is hinged to the box body (1) to realize the downward flipping of the backplane (3) from top to bottom. The optical cable inlet unit (2) includes an inlet (21) for the optical cable to extend upward from bottom to top. There is an optical cable fixing area (6) between the inlet (21) and the bottom row of the splicing and fiber storage tray groups (4). The optical cable fixing area (6) includes U-shaped fixing plates (61) arranged at intervals from outside to inside in sequence. Adjacent U-shaped fixing plates (61) are connected by two vertical parts, and at least two U-shaped notches are respectively formed locally on the transverse parts of each U-shaped fixing plate (61) to form T-shaped cable tying columns (611). Corresponding to each T-shaped cable tying column (611) on the transverse part of each U-shaped fixing plate (61), a fixing strengthening core (62) protruding from its surface is provided. A through hole (621) for the optical cable to pass through is opened on the fixing strengthening core (62).

2. The optical cable cross-connect box according to claim 1, wherein: The splicing and fiber storage tray groups (4) include at least two splicing and fiber storage trays that can overlap and rotate relative to the second U-shaped part (32).

3. The optical cable cross-connect box according to claim 2, characterized in that: The second U-shaped part (32) includes a second vertical wall (321) shared with the first U-shaped part (31). A through hole (3211) for connecting them is opened on the second vertical wall (321). A cable management rack (7) is provided on the periphery of the through hole (3211). The cable management rack (7) includes at least two vertically arranged cable management rings (71). An opening (711) for the pigtail spliced through the splicing and fiber storage tray to be snapped into is opened on each cable management ring (71).

4. The optical cable distribution box according to claim 3, characterized in that: The first U-shaped part (31) includes a first vertical wall (311) opposite to the second vertical wall (321) of the second U-shaped part (32). At least two fiber winding columns (8) for storing fibers are arranged on the first vertical wall (311) from top to bottom.

5. The optical cable distribution box according to claim 3 or 4, characterized in that: A parking area (9) is also provided around the wiring area (10).

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