Optical cable reel and optical fiber distribution box

Abstract

The utility model provides an optical cable tray and an optical fiber distribution box. Relates to the technical field of optical communication equipment. The optical cable reel not only can weaken the twisting phenomenon of the optical cable, but also can adapt to the size of an optical fiber distribution box. The optical cable reel comprises an outer reel, an inner reel and a connecting piece, the inner disc is located in the outer disc, the connecting piece is connected with the outer disc and the inner disc, and the outer disc or the inner disc is detachably connected with the connecting piece; wherein the outer disc comprises an outer cable disc shaft, a containing space is formed in the outer cable disc shaft, a first disc storage space used for winding an optical cable is formed on the periphery of the outer cable disc shaft, the inner disc comprises an inner cable disc shaft, the inner cable disc shaft is located in the containing space, and a second disc storage space used for winding the optical cable is formed on the periphery of the inner cable disc shaft. The large-diameter outer cable reel shaft and the small-diameter inner cable reel shaft are of a nested structure, an optical cable is wound on the large-diameter outer cable reel shaft, twisting of the optical cable can be weakened, and the optical cable is wound on the small-diameter inner cable reel shaft and can be matched with an optical fiber distribution box with a small size.

Description

Technical Field

[0001] The present application relates to the technical field of optical communication equipment, and in particular to an optical cable reel for winding optical cables, and an optical fiber distribution box. Background Art

[0002] Optical cable (optical fiber cable) is a communication cable assembly that uses one or more optical fibers placed in a sheath as a transmission medium. The optical cable reel is used for the cabling and turnover of optical cables.

[0003] Some optical cables have a bending memory effect after high-temperature storage. For example, the optical cable can be first coiled on an optical cable reel with a radial size of 30mm. After the high-temperature storage test, when it is taken out from the optical cable reel, the optical cable will be spring-shaped and twisted obviously, and it may even be impossible to construct. After the optical cable is bonded to the fixing, it is easy to fall off and has poor reliability.

[0004] In order to reduce the twisting phenomenon of the optical cable, the radial size of the optical cable reel can be increased, for example, to 80 mm. However, it is difficult to store the larger optical cable reel in the access termina l box (ATB). For example, the size of the access termina l box is generally 86 mm x 86 mm, making it difficult to match the optical cable reel with the access termina l box. Utility Model Content

[0005] The present application provides an optical cable reel and an optical fiber distribution box, which aims to provide an optical cable reel that can not only reduce the twisting phenomenon of the optical cable but also adapt to the size of the optical fiber distribution box.

[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0007] In one aspect, the present application provides an optical cable reel.

[0008] The optical cable drum comprises: an outer drum, an inner drum, and a connecting piece; the inner drum is located inside the outer drum, the connecting piece connects the outer drum and the inner drum, and the outer drum or the inner drum is detachably connected to the connecting piece; wherein the outer drum comprises an outer cable drum shaft, the outer cable drum shaft has a accommodating space, the outer periphery of the outer cable drum shaft forms a first storage space for winding the optical cable, and the inner drum comprises an inner cable drum shaft, the inner cable drum shaft is located inside the accommodating space, and the outer periphery of the inner cable drum shaft forms a second storage space for winding the optical cable.

[0009] The optical cable reel provided in the present application includes an outer cable reel shaft and an inner cable reel shaft sleeved in the outer cable reel shaft, that is, the radial dimension of the inner cable reel shaft is smaller than the radial dimension of the outer cable reel shaft. In some uses, the optical cable can be wound around the outer cable reel shaft with a larger radial dimension, so that the phenomenon of twisting and knotting of the optical cable caused by the bending memory effect can be weakened. The outer reel or the inner reel is detachably connected to the connector. For example, after the optical fiber is laid into the home, the outer reel and the inner reel can be separated by the connector, and the excess optical cable on the outer reel can be wound around the inner cable reel shaft. Since the radial dimension of the inner cable reel shaft is smaller, the inner reel can be stored in the optical fiber distribution box.

[0010] Therefore, the optical cable reel provided in the present application can not only suppress the twisting and tangling of the optical cable caused by the bending memory effect, but also can match the size of the optical fiber distribution box when it needs to be stored in the optical fiber distribution box.

[0011] In one practicable manner, the connecting member includes a plurality of connecting strips, and the plurality of connecting strips are arranged at intervals along the circumference of the inner cable drum shaft.

[0012] The connecting strip is used as the connecting structure connecting the inner cable drum shaft and the outer cable drum shaft. Not only is the structure simple, but when the outer cable drum shaft needs to be removed, the connecting strip can be cut to separate the outer drum and the inner drum, and the operation is also relatively convenient.

[0013] In one achievable manner, any connecting strip of the plurality of connecting strips has a groove at a position close to the outer disk.

[0014] Alternatively, in one practicable manner, any one of the plurality of connecting strips has a groove at a position close to the inner disk.

[0015] Alternatively, in one practicable manner, any one of the plurality of connecting strips has a groove at a position close to the inner disk and at a position close to the outer disk.

[0016] Since the connecting strip is provided with a groove, the connecting strip can be cut at the position with the groove, so that the outer disc is separated from the connecting strip, or the inner disc is separated from the connecting strip.

[0017] In one achievable manner, the thickness of the connecting strip gradually decreases from the inner disk to the outer disk.

[0018] Alternatively, in one achievable manner, the thickness of the connecting strip gradually decreases from the outer disk to the inner disk.

[0019] In this implementation structure, since the thickness of the connecting strip gradually decreases, the connecting strip can be cut at a position with a smaller thickness, so that the outer disk and the connecting strip can be separated conveniently, or the inner disk and the connecting strip can be separated.

[0020] In one possible implementation, the optical cable drum further includes a rotating handle, which is disposed on the inner drum. Rotating the rotating handle can drive the inner drum separated from the outer drum to rotate.

[0021] A rotating handle is provided on the inner drum. In some uses, after the inner drum is separated from the outer drum, if it is necessary to wind the optical cable on the inner cable drum shaft, the rotating handle can be operated to drive the inner cable drum shaft to rotate, so that the optical cable can be wound on the inner cable drum shaft more conveniently.

[0022] In one achievable manner, the first end of the inner cable drum shaft has a plurality of first baffles, and the second end of the inner cable drum shaft has a plurality of second baffles, and in the axial direction of the inner cable drum shaft, the first end is opposite to the second end; the plurality of first baffles and the plurality of second baffles are arranged alternately along the circumference of the inner cable drum shaft.

[0023] Multiple first baffles and multiple second baffles, as well as an inner cable drum shaft can form a second storage space for winding optical cables. Since the multiple first baffles and multiple second baffles are arranged in a staggered manner, in some selectable preparation processes, such as the injection molding process, the mold structure can be simplified, the mold can be demolded in one step, and the preparation process can be simplified.

[0024] In one achievable manner, from the inner cable drum axis to the outer cable drum axis, the size of the first baffle or the second baffle gradually increases in a first direction, and the first direction is along the circumference of the inner cable drum axis.

[0025] It can be understood that the first baffle or the second baffle has a fan-shaped structure.

[0026] In one achievable manner, the plurality of first baffles are arranged symmetrically with respect to the axial direction of the inner cable drum axis.

[0027] In one achievable manner, the plurality of second baffles are arranged symmetrically with respect to the axial direction of the inner cable drum axis.

[0028] By symmetrically arranging a plurality of first baffles and a plurality of second baffles, the stability and reliability of the entire optical cable drum can be improved.

[0029] In one practicable manner, one end of the connecting member is connected to the first baffle, and the other end is connected to the outer cable drum shaft.

[0030] For example, one end of the connecting member can be detachably connected to the outer side wall of the first baffle, or one end of the connecting end can be detachably connected to the inner wall surface of the outer cable drum shaft.

[0031] In one achievable manner, the axial dimension of the inner cable drum shaft is smaller than the axial dimension of the outer cable drum shaft.

[0032] The outer cable drum shaft with a larger axial dimension can be used to coil more optical cables, while the inner cable drum shaft with a smaller axial dimension can be adapted to a smaller optical fiber distribution box.

[0033] In one achievable manner, the inner cable drum shaft has a first end and a second end relative to each other, and the outer cable drum shaft has a third end and a fourth end relative to each other, wherein the first end is closer to the third end than the second end; the first end and the third end are spaced apart in the axial direction of the inner cable drum shaft, and the second end and the fourth end are spaced apart in the axial direction of the inner cable drum shaft.

[0034] That is, the inner drum is hidden in the outer drum, so that when the optical cable is coiled on the outer cable drum shaft, the inner drum is hidden during transportation, which can improve the appearance.

[0035] In one practicable manner, both ends of the outer cable drum shaft are provided with sealing plates, and the sealing plates are provided with cable passing holes for allowing the optical cables to pass through so as to be wound on the outer cable drum shaft.

[0036] In one possible implementation, the outer disk, the inner disk and the connecting piece are an integrally formed piece.

[0037] For example, it can be formed in one step through an injection molding process.

[0038] On the other hand, the present application provides a fiber optic distribution box, which includes a box body, an optical cable reel and an optical cable, wherein the optical cable reel and the optical cable are arranged in the box body; the optical cable reel includes a cable reel shaft, a plurality of first baffles and a plurality of second baffles, and the optical cable is wound on the cable reel shaft; the first end of the cable reel shaft has a plurality of first baffles, and the second end of the cable reel shaft has a plurality of second baffles, the first end is opposite to the second end, and the plurality of first baffles and the plurality of second baffles are arranged in an alternating manner along the circumference of the cable reel shaft.

[0039] The optical cable reel of the optical fiber distribution box provided in the present application has baffles arranged at both ends of the cable reel axis in a staggered manner. In some preparation processes, such as injection molding, the module structure can be simplified and the optical cable reel can be produced in one demolding.

[0040] In one practicable manner, the optical fiber distribution box further includes a rotating handle, and the rotating handle is disposed on the first baffle.

[0041] For example, the rotating handle is arranged on a side of the first baffle plate facing away from the second baffle plate.

[0042] In one practicable manner, the size of the first baffle or the second baffle gradually increases in a first direction from the inside of the cable drum shaft to the outer edge of the cable drum shaft, and the first direction is along the circumference of the cable drum shaft.

[0043] It can be understood that the first baffle or the second baffle has a fan-shaped structure.

[0044] In one practicable manner, the optical cable drum is an integrally formed structural component.

[0045] In one practicable manner, a plurality of limiting posts are disposed in the box body, the plurality of limiting posts are arranged at intervals along the circumference of the cable drum shaft, and the cable drum shaft is sleeved outside the plurality of limiting posts.

[0046] In this example, a plurality of limiting posts are provided on the box body, and the cable drum shaft is sleeved outside the plurality of limiting posts to fix the optical cable drum.

[0047] In one practicable manner, the optical fiber distribution box further includes a connecting terminal, which is fixed in the box body and connected to the optical cable.

[0048] On the other hand, the present application provides an assembly method on an optical cable drum, the optical cable drum comprising: an outer drum, an inner drum and a connector, the outer drum comprising an outer drum shaft, the outer drum shaft having a receiving space; the inner drum comprising an inner drum shaft, the inner drum shaft being located in the receiving space; the connector connecting the outer drum and the inner drum, the outer drum or the inner drum being detachably connected to the connector; a method for winding an optical cable on the optical cable drum, comprising:

[0049] Laying of optical cable coiled on the outer cable drum shaft;

[0050] Separate the outer plate from the inner plate through the connecting piece;

[0051] Coiling the optical cable on the inner cable drum shaft;

[0052] An inner tray with an optical cable is arranged in a box body of the optical fiber distribution box.

[0053] In one possible implementation, the connector of the optical cable drum comprises a plurality of connector strips, which are arranged at intervals along the circumference of the inner drum axis; the outer drum and the inner drum are separated by the connector, including:

[0054] Cut the connecting strip to separate the outer disc from the inner disc.

[0055] In one possible implementation, any one of the plurality of connecting strips has a groove at a position close to the inner plate; and / or any one of the plurality of connecting strips has a groove at a position close to the outer plate; and the outer plate and the inner plate are separated by a connecting piece, including:

[0056] At the position of the connecting strip having the groove, the connecting strip is cut off to separate the outer disk from the inner disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A schematic diagram of the structure of an optical cable reel provided in an embodiment of the present application;

[0058] Figure 2 A schematic diagram of the structure of an optical cable reel provided in an embodiment of the present application;

[0059] Figure 3A schematic diagram of the structure of an optical cable reel provided in an embodiment of the present application;

[0060] Figure 4 A schematic diagram of the structure of an outer reel of an optical cable reel provided in an embodiment of the present application;

[0061] Figure 5 A schematic structural diagram of an inner reel of an optical cable reel provided in an embodiment of the present application;

[0062] Figure 6 A schematic structural diagram of an inner reel of an optical cable reel provided in an embodiment of the present application;

[0063] Figure 7 A schematic structural diagram of an inner reel of an optical cable reel provided in an embodiment of the present application;

[0064] Figure 8 A schematic structural diagram of an inner reel of an optical cable reel provided in an embodiment of the present application;

[0065] Fig. 9 A top view of an inner drum of an optical cable drum provided in an embodiment of the present application;

[0066] Fig.10 A schematic structural diagram of an inner reel of an optical cable reel provided in an embodiment of the present application;

[0067] Fig.11 A schematic diagram of the structure of an outer reel of an optical cable reel provided in an embodiment of the present application;

[0068] Fig.12 A schematic diagram of the structure of an outer reel of an optical cable reel provided in an embodiment of the present application;

[0069] Fig.13 A schematic diagram of the structure of an outer reel of an optical cable reel provided in an embodiment of the present application;

[0070] Fig.14 A schematic diagram of the structure of an optical cable reel provided in an embodiment of the present application;

[0071] Fig.15 for Fig.14 EE profile diagram;

[0072] Fig.16 A schematic diagram of the structure of a fiber optic distribution box provided in an embodiment of the present application;

[0073] Fig.17 for Fig.16 Exploded diagram of

[0074] Fig.18 A schematic diagram of the structure of a box body provided in an embodiment of the present application.

[0075] Reference numerals:

[0076] 1- External market;

[0077] 11-outer cable drum shaft;

[0078] 12-First disk storage space;

[0079] 13- Accommodation space;

[0080] 14-First sealing plate;

[0081] 15-Second sealing plate;

[0082] 16-wire hole;

[0083] 17- extension plate;

[0084] 2-Inner plate;

[0085] 21-Inner cable reel shaft;

[0086] 22- Second disk storage space;

[0087] 23- first baffle;

[0088] 24- second baffle;

[0089] 3-Connectors;

[0090] 31-connecting bar; 311-first connecting bar; 312-second connecting bar;

[0091] 32-groove;

[0092] 4- Rotate the handle;

[0093] 5-box body; 51-cover body; 52-base;

[0094] 6-Connection terminals;

[0095] 7- Optical cable drum;

[0096] 8- Bracket;

[0097] 9-Limiting column. DETAILED DESCRIPTION

[0098] In the optical transmission equipment, it is necessary to install an access terminal box (ATB). For example, the access terminal box can be used in a fiber-to-the-home scenario or can be installed outdoors.

[0099] In the fiber optic distribution box, an optical cable reel may be installed on which an optical cable (optical cable) is wound, and a connection terminal connected to the optical cable, such as an adapter, may also be installed in the fiber optic distribution box, and the adapter is connected to the optical cable at the user side.

[0100] Among them, the cable drum is used for the cabling and turnover of the optical cable. For example, during the turnover process, the optical cable needs to be wound on a cable drum with a larger cable drum axis to prevent the optical cable from being spring-shaped and twisted after it is taken out; for another example, the cable drum with the wound optical cable needs to be installed in the optical fiber distribution box, and the cable drum axis needs to be smaller to adapt to the smaller size of the optical fiber distribution box.

[0101] An embodiment of the present application provides an optical cable reel structure, which can not only reduce the twisting phenomenon of the optical cable, but also be adapted to a smaller optical fiber distribution box.

[0102] The structure that can be realized by the optical cable drum is described in detail below with reference to the accompanying drawings.

[0103] like Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 , Figure 2 and Figure 3 What is shown is a realization structure of the optical cable drum. Figure 1 , Figure 2 and Figure 3 In this example, the optical cable drum comprises an outer drum 1 and an inner drum 2 , and the inner drum 2 is located inside the outer drum 1 .

[0104] like Figure 4 , Figure 4 The structural diagram of the outer drum 1 is exemplarily shown. The outer drum 1 may include an outer cable drum shaft 11, and a first drum storage space 12 may be formed at the periphery of the outer cable drum shaft 11. The first drum storage space 12 is used for winding the optical cable.

[0105] like Figure 5 , Figure 5 The structural diagram of the inner drum 2 is exemplarily shown. The inner drum 2 may include an inner cable drum shaft 21, and a second drum storage space 22 is formed on the periphery of the inner cable drum shaft 21. The second drum storage space 22 is used for winding the optical cable.

[0106] The outer cable drum shaft 11 may be a hollow structure. Figure 4 The outer cable drum shaft 11 has a receiving space 13, see Figure 3 The inner cable drum shaft 21 is located in the accommodating space 13 , and the second drum storage space for winding the optical cable is located in the accommodating space 13 .

[0107] As shown in the above figure, the optical cable drum of the present application example includes: a large-diameter outer cable drum shaft 11 and a small-diameter inner cable drum shaft 21 , and the inner cable drum shaft 21 is nested in the outer cable drum shaft 11 .

[0108] See you next time Figures 1 to 3 The optical cable drum of this example may further include a connector 3 , which may be located between the outer drum 1 and the inner drum 2 , and the connector 3 connects the outer drum 1 and the inner drum 2 .

[0109] In the optical cable reel of the example of the present application, the outer reel 1 or the inner reel 2 is detachably connected to the connector 3 .

[0110] That is to say, in some cases, the connecting member 3 connects the outer disk 1 and the inner disk 2; in other cases, since the outer disk 1 or the inner disk 2 and the connecting member 3 are detachable, the inner disk 2 and the outer disk 1 can be separated by the connecting member 3, and the inner disk 2 and the outer disk 1 become two independent structural members.

[0111] In some examples, the diameter of the outer cable drum shaft 11 of the outer drum 1 may be 80-100 mm; the diameter of the inner cable drum shaft 21 of the inner drum 2 may be 30-40 mm.

[0112] For example, during the turnover of the optical cable, the optical cable can be wound on an outer cable drum shaft 11 with a large diameter. Even after high-temperature storage, the optical cable has a bending memory effect. Since the outer cable drum shaft 11 is large, the twisting of the optical cable will not be obvious after the optical cable is removed, thereby improving the reliability of the optical cable.

[0113] For another example, when the optical cable reel needs to be stored in the optical fiber distribution box, the inner reel 2 can be separated from the outer reel 1 by the connector 3, the optical cable is wound on the inner cable reel shaft 21 of the inner reel, and the inner reel containing the optical cable is then placed in the optical fiber distribution box. In some examples, the size of the optical fiber distribution box is relatively small, for example, it can be 86mm x 86mm, so that the smaller inner reel can be adapted to the smaller optical fiber distribution box.

[0114] Figures 1 to 3 The optical cable drum shown in the figure can be wound on different optical cable drum shafts by nesting two cable drum shafts according to the use requirements. Winding the optical cable on the outer cable drum shaft with a large diameter can reduce the twisting phenomenon, and winding the optical cable on the inner cable drum shaft with a small diameter can be adapted to a smaller size optical fiber distribution box.

[0115] The outer disk 1 or the inner disk 2 is detachably connected to the connecting member 3, which can be understood as: in some examples, the outer disk 1 is detachably connected to the connecting member 3. In other examples, the inner disk 2 is detachably connected to the connecting member 3. In still other examples, both the outer disk 1 and the inner disk 2 are detachably connected to the connecting member 3.

[0116] The connecting member 3 connecting the outer disk 1 and the inner disk 2 in the example of the present application has a variety of possible structures.

[0117] For example, Figure 6 As shown, the connecting member includes a plurality of connecting strips 31, and the plurality of connecting strips 31 can be arranged at intervals along the circumference of the inner cable drum shaft 21. Figure 6 In this example, four connecting strips 31 are included, and the four connecting strips 31 are arranged at intervals along the circumference of the inner cable drum shaft 21 .

[0118] In this example, the connecting bar 31 is in a rectangular structure. In other examples, the connecting bar 31 may also be in other shapes.

[0119] For another example, the connector may include a slot and a buckle matched with the slot, one of the slot and the buckle is arranged on the outer disk 1, and the other is arranged on the inner disk 2. The outer disk 1 and the inner disk 2 are detachably connected by the buckle and the slot.

[0120] use Figure 6 When the inner drum 2 needs to be separated from the outer drum 1, the connecting strip 31 can be cut off to remove the inner drum 2 from the outer drum shaft 11. The connecting piece of this example is not only simple in structure, but also convenient to operate.

[0121] In order to further facilitate the operation, the structure of the connecting strip 31 can be implemented as follows.

[0122] like Figure 7 , Figure 7 A structure of the connecting strip 31 is provided. A groove 32 is provided on the connecting strip 31. When the connecting strip 31 is cut, it can be cut at the position with the groove 32, which saves effort and is more convenient to operate.

[0123] In some structures, see Figure 7 , the groove 32 is located at the position of the connecting strip 31 close to the inner disk 2. In some other structures, the groove 32 can be located at the position of the connecting strip 31 close to the outer disk 1. Alternatively, the groove 32 can be provided at the position of the connecting strip 31 close to the outer disk and close to the inner disk.

[0124] like Figure 8 , Figure 8 Another structure of the connecting strip 31 is given. The thickness of the connecting strip 31 gradually decreases from the outer disc 1 to the inner disc 2. Alternatively, the thickness of the connecting strip 31 gradually decreases from the outer disc 1 to the inner disc 2.

[0125] In this implementation structure, since the thickness of the connecting strip 31 gradually decreases, the connecting strip can be cut at a position with a smaller thickness, so that the outer disk and the connecting strip can be separated more conveniently, or the inner disk and the connecting strip can be separated.

[0126] See Figures 6 to 8 The inner disk 2 of the present application example may further include: a plurality of first baffles 23 and a plurality of second baffles 24. Figure 8 , along the axial direction of the inner cable drum axis 21 (such as Figure 8 The inner cable drum shaft 21 has a first end and a second end, and the first end is opposite to the second end; the first end of the inner cable drum shaft 21 has a plurality of first baffles 23, and the second end of the inner cable drum shaft 21 has a plurality of second baffles 24.

[0127] One end of each of the plurality of first baffles 23 and the plurality of second baffles 24 is connected to the inner cable drum shaft 21 , and the other end thereof extends toward the outside of the inner cable drum shaft 21 .

[0128] A plurality of first baffles 23, a plurality of second baffles 24, and the inner cable drum shaft 21 form a space for winding the optical cable, so as to protect the optical cable, avoid interference between the optical cable and other structural parts, and prevent damage to the optical cable.

[0129] In some examples, the plurality of first baffles 23 located at the first end of the inner cable drum shaft 21 may be arranged at intervals along the circumference of the inner cable drum shaft 21. Figure 8 In the embodiment, two first baffles 23 are included, and the two first baffles 23 are arranged at a first end of the inner cable drum shaft 21 at an interval.

[0130] In some examples, the plurality of second baffles 24 located at the second end of the inner cable drum shaft 21 may be arranged at intervals along the circumference of the inner cable drum shaft 21. Figure 8 In the embodiment, two second baffles 24 are included, and the two second baffles 24 are arranged at a distance from each other at the second end of the inner cable drum shaft 21.

[0131] The positional relationship between the plurality of first baffles 23 and the plurality of second baffles 24 can be Fig. 9 Example, Fig. 9 In this example, along the circumference of the inner cable drum shaft 21, a plurality of first baffles 23 and a plurality of second baffles 24 are arranged in a staggered manner.

[0132] It can be understood that: looking down along the first end of the inner cable drum axis, a second baffle 24 is arranged between two adjacent first baffles 23 , and a first baffle 23 is arranged between two adjacent second baffles 24 .

[0133] In some optional preparation processes, such as Fig. 9 Along the circumference of the inner cable drum shaft 21, a plurality of first baffles 23 and a plurality of second baffles 24 are arranged in a staggered manner, and can be molded in one step by an injection molding process. Fig. 9 This can simplify the mold structure and the preparation process, thereby reducing the manufacturing cost of the optical cable drum.

[0134] The first baffle 23 or the second baffle 24 may have various shapes. The shapes of the first baffle 23 and the second baffle 24 may be the same or different.

[0135] like Fig. 9 , from the inner cable drum axis to the outer cable drum axis, that is, in the direction away from the inner cable drum axis 21 (such as Fig. 9 The first baffle 23 or the second baffle 24 gradually increases in size in the first direction, and the first direction of this example is along the circumference of the inner cable drum shaft 21. It can be understood that the first baffle 23 or the second baffle 24 can be in a fan-shaped structure.

[0136] See you next time Fig. 9 The connecting strip 31 can be connected to the baffle, for example, the side wall of the first baffle 23 away from the inner cable drum shaft 21 is connected to the connecting strip 31, and the other end of the connecting strip 31 is connected to the inner wall surface of the outer cable drum shaft 11, and the inner wall surface of the outer cable drum shaft 11 can be understood as the wall surface of the outer cable drum shaft 11 that encloses the accommodating space; the side wall of the second baffle 24 away from the inner cable drum shaft 21 is connected to the connecting strip 31, and the other end of the connecting strip 31 is connected to the inner wall surface of the outer cable drum shaft 11.

[0137] For example, the connecting strip 31 can be detachably connected to the first baffle 23, so that after the outer plate 1 is removed, the connecting strip 31 is connected to the outer plate 1, which can improve the appearance of the removed inner plate 2.

[0138] In some examples, the connection position between the connection bar 31 and the first baffle 23 may be in the middle of the outer edge of the first baffle 23. The connection position between the connection bar 31 and the second baffle 24 may be in the middle of the outer edge of the second baffle 24.

[0139] The plurality of first baffles 23 , the plurality of second baffles 24 , and the plurality of connecting bars 31 may be symmetrically arranged about a central axis of the inner drum shaft 21 .

[0140] See Fig.10 The connecting bar connected to the first baffle 23 may be referred to as a first connecting bar 311 , and the connecting bar connected to the second baffle 24 may be referred to as a second connecting bar 312 .

[0141] When the groove 32 is provided on the connecting strip 31 to facilitate separation of the outer disc 1 from the inner disc 2, for the first connecting strip 311, the groove 32 can be provided on the surface of the first connecting strip 311 away from the second baffle 24, and for the second connecting strip 312, the groove 32 can be provided on the surface of the second connecting strip 312 away from the first baffle 23. That is, the grooves 32 are all facing the outside of the optical cable drum, so that the connecting strip can be cut off conveniently.

[0142] In some examples, the cross section of the groove 32 may be triangular or rectangular. The cross section of the groove in this example may be understood as a plane perpendicular to the extending direction of the groove.

[0143] After the outer drum 1 is separated from the inner drum 2, the optical cable can be wound on the inner cable drum shaft 21. In order to quickly and conveniently wind the optical cable on the cable drum shaft, see Fig.10 A rotating handle 4 may be provided on the inner disk, and rotating the rotating handle 4 can drive the inner disk separated from the outer disk to rotate.

[0144] exist Fig.10 When the optical cable is wound on the inner drum as shown, the inner drum shaft 21 can be arranged on a structure, and the inner drum can be rotated by operating the rotating handle 4, so that the optical cable can be wound on the inner drum shaft 21.

[0145] See Fig.10 The rotating handle 4 can be arranged on the first baffle 23, for example, the rotating handle 4 is arranged on the side of the first baffle 23 away from the second baffle 24. Alternatively, the rotating handle 4 can be arranged on the second baffle 24, for example, the rotating handle 4 is arranged on the side of the second baffle 24 away from the first baffle 23.

[0146] The present application does not impose any special restrictions on the structure of the rotating handle 4. For example, it can be Fig.10 The spherical structure shown can also be other shapes.

[0147] The external disk 1 of the present application example, such as Fig.11 , Fig.11 The structural diagram of the outer drum 1 is shown as an example. In addition to the outer cable drum shaft 11, the outer drum 1 may also include sealing plates located at both ends of the outer cable drum shaft 11, for example, a first sealing plate 14 is provided at one end of the outer cable drum shaft 11, and a second sealing plate 15 is provided at the other end of the outer cable drum shaft 11. The first sealing plate 14, the second sealing plate 15 and the outer cable drum shaft 11 enclose a first storage space 12 for winding optical cables. The first sealing plate 14 and the second sealing plate 15 can protect the optical cable wound on the outer cable drum shaft 11.

[0148] The first sealing plate 14 may be disposed around the circumference of the outer cable drum shaft 11 , and the second sealing plate 15 may be disposed around the circumference of the outer cable drum shaft 11 .

[0149] In order to facilitate the winding of the optical cable on the outer cable drum shaft 11, as shown in FIG. Fig.12 A cable hole 16 may be provided on the first sealing plate 14 or the second sealing plate 15 , and the cable hole 16 is used for the optical cable to pass through so as to be wound on the outer cable drum shaft 11 .

[0150] Combination Fig.12 and Fig.13 , Fig.13 yes Fig.12Another perspective view. An extension plate 17 is also provided at the outer edge of the second sealing plate 15, and the extension plate 17 is arranged around the circumference of the second sealing plate 15, so that the second sealing plate 15 and the extension plate 17 can enclose a space.

[0151] In some examples, the end of the optical cable wound on the outer cable drum shaft 11 has a connecting terminal. In order to protect the connecting terminal, the connecting terminal can be fixed in the space enclosed by the second sealing plate 15 and the extension plate 17. For example, an installation groove can be set in the space and the connecting terminal can be fixed in the installation groove.

[0152] In the optical cable drum of the present application example, the axial dimension of the inner cable drum shaft 21 is smaller than the axial dimension of the outer cable drum shaft 11. The outer cable drum shaft 11 with a larger axial dimension can be used to coil more optical cables; the inner cable drum shaft 21 with a smaller axial dimension can be used to adapt to a smaller optical fiber distribution box.

[0153] like Fig.14 and Fig.15 , Fig.15 yes Fig.14 EE profile. In this example, see Fig.15 The inner cable drum shaft 21 has a first end and a second end opposite to each other, and the outer cable drum shaft 11 has a third end and a fourth end opposite to each other, and the first end is closer to the third end than the second end. That is, the first end of the inner cable drum shaft 21 is closer to the third end of the outer cable drum shaft 11, and the second end of the inner cable drum shaft 21 is closer to the fourth end of the outer cable drum shaft 11.

[0154] See you next time Fig.15 The first end of the inner cable drum shaft 21 and the third end of the outer cable drum shaft 11 have a first spacing in the axial direction of the inner cable drum shaft, and the second end of the inner cable drum shaft 21 and the fourth end of the outer cable drum shaft 11 have a second spacing in the axial direction of the inner cable drum shaft.

[0155] The inner reel is hidden inside the outer reel, which can not only suppress the twisting and knotting of the optical cable caused by the bending memory effect, but also improve the appearance of the optical cable reel on the basis of adapting to the optical fiber distribution box.

[0156] The optical cable reel in the example of the present application can be made of materials such as plastic and metal.

[0157] like Fig.14 and Fig.15 The optical cable drum of the present application example can be an integrally formed structural part. For example, it can be made by injection molding. Some examples, such as the first baffle and the second baffle arranged alternately at both ends of the inner cable drum shaft, the inner drum is arranged inside the outer drum, and the design on these structures can be demolded at one time, simplifying the mold structure and simplifying the preparation process.

[0158] When using Fig.14 and Fig.15In the example of an optical cable drum, the assembly method of the optical cable drum may include: an optical cable is wound on an outer cable drum shaft, and the optical cable wound on the outer cable drum shaft is laid; the outer drum and the inner drum are separated by a connector, for example, by cutting the connector; the remaining optical cable on the outer cable drum shaft is wound on the inner cable drum shaft; and the inner drum containing the optical cable is installed in the box body of the optical fiber distribution box. That is, the assembly of the optical cable drum can be completed.

[0159] When cutting the connecting piece, for example, the connecting piece includes a connecting strip having a groove, and the connecting strip can be cut along the position of the groove.

[0160] Fig.16 is a structural diagram of a fiber optic distribution box provided in an embodiment of the present application, Fig.17 yes Fig.16 Exploded view of the partial structure of Fig.16 and Fig.17 The optical fiber distribution box may include a box body 5 , an optical cable drum 7 and a connecting terminal 6 arranged in the box body 5 , and an optical cable wound on the optical cable drum 7 .

[0161] In some examples, the box body 5 may include a cover 51 and a base 52 , and the cover 51 and the base 52 may be engaged with each other to form a space inside for accommodating the optical cable reel 7 and the connecting terminal 6 .

[0162] One end of the optical cable wound on the optical cable drum 7 can be connected to the connecting terminal 6 .

[0163] like Fig.17 The connecting terminal 6 can be fixed on the bracket 8, and the bracket 8 can be fixed in the box body 5.

[0164] There are many ways to fix the optical cable drum 7 in the box body 5, for example, Fig.18 In the example, a plurality of limiting posts 9 are arranged in the box body 5, and the plurality of limiting posts 9 are arranged at intervals along the circumference of the cable drum axis. Fig.17 The cable drum shaft of the optical cable drum 7 is sleeved outside a plurality of limit posts 9. For example, it is possible to set Fig.18 The two limit posts 9 are shown, and the cable drum shaft is sleeved outside the two limit posts 9. The two limit posts 9 can be symmetrically arranged about the axial direction of the cable drum shaft.

[0165] When installing the optical cable drum 7, the cable drum shaft of the optical cable drum 7 can be sleeved outside a plurality of limiting posts 9, and the installation of the optical cable drum 7 can be realized. In this way, the structure not only for fixing the optical cable drum 7 is simple, but also the installation is convenient.

[0166] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0167] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An optical cable drum, characterized in that: include: An outer drum, the outer drum comprising an outer cable drum shaft, the outer cable drum shaft having a receiving space therein; An inner drum, the inner drum comprising an inner cable drum shaft, the inner cable drum shaft being located in the accommodating space; A connecting piece, wherein the connecting piece connects the outer plate and the inner plate, and the outer plate or the inner plate is detachably connected to the connecting piece.

2. The optical cable drum according to claim 1, characterized in that: The connecting member includes a plurality of connecting strips, and the plurality of connecting strips are arranged at intervals along the circumference of the inner cable drum shaft.

3. The optical cable drum according to claim 2, characterized in that: Any of the plurality of connecting strips has a groove at a position close to the inner plate; and / or, Any connecting bar of the plurality of connecting bars has a groove at a position close to the outer disk.

4. The optical cable drum according to any one of claims 1 to 3, characterized in that: The optical cable drum also includes: A rotating handle is arranged on the inner disk, and rotating the rotating handle can drive the inner disk separated from the outer disk to rotate.

5. The optical cable drum according to any one of claims 1 to 3, characterized in that: The first end of the inner cable drum shaft has a plurality of first baffles, and the second end of the inner cable drum shaft has a plurality of second baffles, and the first end is opposite to the second end in the axial direction of the inner cable drum shaft; The plurality of first baffles and the plurality of second baffles are arranged in a staggered manner along the circumferential direction of the cable drum shaft.

6. The optical cable drum according to claim 4, characterized in that: The first end of the inner cable drum shaft has a plurality of first baffles, and the second end of the inner cable drum shaft has a plurality of second baffles, and the first end is opposite to the second end in the axial direction of the inner cable drum shaft; The plurality of first baffles and the plurality of second baffles are arranged in a staggered manner along the circumferential direction of the cable drum shaft.

7. The optical cable drum according to claim 5, characterized in that: From the inner cable drum axis toward the outer cable drum axis, a size of the first baffle or the second baffle gradually increases in a first direction, and the first direction is along the circumference of the inner cable drum axis.

8. The optical cable drum according to claim 5, characterized in that: One end of the connecting member is detachably connected to the first baffle, and the other end is connected to the outer cable drum shaft.

9. The optical cable drum according to any one of claims 1 to 3, characterized in that: The axial dimension of the inner cable drum shaft is smaller than the axial dimension of the outer cable drum shaft.

10. The optical cable drum according to claim 9, characterized in that: The inner cable drum shaft has opposing first and second ends, the outer cable drum shaft has opposing third and fourth ends, the first end being closer to the third end than the second end; The first end and the third end have a distance in the axial direction of the inner cable drum shaft, and the second end and the fourth end have a distance in the axial direction of the inner cable drum shaft.

11. The optical cable drum according to any one of claims 1 to 3, characterized in that: Both ends of the outer cable drum shaft are provided with sealing plates, and the sealing plates are provided with wire passing holes, and the wire passing holes are used for optical cables to pass through so as to be wound on the outer cable drum shaft.

12. The optical cable drum according to any one of claims 1 to 3, characterized in that: The outer plate, the inner plate and the connecting piece are integrally formed.

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