CN219349210U

CN219349210U - Butterfly-shaped optical cable

Info

Publication number: CN219349210U
Application number: CN202320137954.1U
Authority: CN
Inventors: 朱戴根; 谭枫; 缪威玮; 赵静; 缪小明; 钱慧慧
Original assignee: Jiangsu Zhongtian Technology Co Ltd
Current assignee: Jiangsu Zhongtian Technology Co Ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-07-14
Anticipated expiration: 2033-01-30

Abstract

The utility model provides a butterfly-shaped optical cable. The butterfly-shaped optical cable includes the butterfly-shaped optical cable body, and the butterfly-shaped optical cable body includes light unit and two at least stiffeners, and two at least stiffeners set up in the radial both sides of light unit, and the butterfly-shaped optical cable body still includes: an outer sheath coating the outer circumferences of the light unit and the at least two reinforcements; and the cable bearing structure comprises a first matching part arranged at the upper end of the outer sheath and a second matching part arranged at the lower end of the outer sheath, and the appearance of the first matching part is matched with the appearance of the second matching part. According to the technical scheme, the cable bearing structure is arranged, a steel wire hanging wire for overhead is not required, and the butterfly-shaped optical cable body is small in overall size, so that the butterfly-shaped optical cable body can be used in overhead and can be applied to indoor occasions such as direct burial and pipelines.

Description

Butterfly-shaped optical cable

Technical Field

The utility model relates to the technical field of optical cables, in particular to a butterfly-shaped optical cable.

Background

Butterfly cables are undoubtedly the best solution to the indoor cable demand, and there are two main types of butterfly cables on the market today, one of which is a self-supporting cable, mainly for overhead use, and one of which is a non-self-supporting cable, for direct burial or plumbing etc. For indoor optical cable, sometimes can adopt non-self-supporting structure, bury underground, or fix the mode on the wall body with plastic nail in order to reach the laying purpose, and sometimes also must adopt self-supporting structure to hang in the air and prevent physical destruction. In some remote areas such as mountainous areas and cave dwellings, the indoor environment conditions are more complicated, so that a novel butterfly-shaped optical cable needs to be designed at present, and the laying requirements of different laying environments can be met at the same time.

At present, the existing self-supporting optical cable comprises an optical cable body and steel wire suspension wires arranged on one side of the optical cable body, wherein the optical cable body comprises an optical unit and reinforcing pieces arranged on two sides of the optical unit, the steel wire suspension wires and the optical cable body are sequentially arranged along the radial direction of the optical cable body, and the steel wire suspension wires are used for suspending the optical cable, namely, for suspending the optical cable, the radial dimension of the self-supporting optical cable is increased, on one hand, the overall dimension of the self-supporting optical cable is increased, and the self-supporting optical cable is not convenient to be applied to indoor occasions such as direct burial and pipelines, and can only be applied to suspending occasions; on the other hand, since the suspension wires are made of steel wires, the overall weight of the self-supporting optical cable is also increased.

Disclosure of Invention

The utility model mainly aims to provide a butterfly-shaped optical cable, which solves the problems that the self-supporting optical cable in the prior art is increased in size due to the arrangement of a steel wire hanging wire, and is difficult to apply to indoor occasions such as direct burial or pipelines.

In order to achieve the above object, the present utility model provides a butterfly-shaped optical cable, the butterfly-shaped optical cable including a butterfly-shaped optical cable body including: the optical unit and two at least stiffeners, two at least stiffeners set up in the radial both sides of optical unit, and butterfly-shaped optical cable body still includes: an outer sheath coating the outer circumferences of the light unit and the at least two reinforcements; and the cable bearing structure comprises a first matching part arranged at the upper end of the outer sheath and a second matching part arranged at the lower end of the outer sheath, and the appearance of the first matching part is matched with the appearance of the second matching part.

Further, the first fitting portion includes a first fitting protrusion, and the second fitting portion includes a first fitting groove provided in the outer sheath.

Further, the shape of the first fitting projection and/or the first fitting groove is any one of rectangular, semicircular, and polygonal.

Further, the first fitting portion further includes a second fitting groove provided at an upper end of the first fitting protrusion, and the second fitting portion further includes a second fitting protrusion provided at a bottom of the first fitting groove and capable of fitting with an outer shape of the second fitting groove.

Further, the width L1 of the second fitting groove and the interval L2 between the inner sides of the two reinforcing pieces have the following relationship: l2-2mm is less than or equal to L1 and less than or equal to L2-1mm; and/or, the width L1 of the second fitting groove and the width L3 of the outer sheath have the following relationship: l1 is less than or equal to 1/3L3.

Further, the butterfly-shaped optical cable includes a plurality of butterfly-shaped optical cable bodies that arrange in proper order, and in two adjacent butterfly-shaped optical cable bodies, the second cooperation portion of the butterfly-shaped optical cable body that is located the top can with the unsmooth cooperation of the first cooperation portion of the butterfly-shaped optical cable body that is located the below.

Further, the light unit includes a plurality of optical fibers, a sleeve, a water blocking tape, and a filler filled in gaps between the plurality of optical fibers, which are sequentially disposed from inside to outside.

Further, the number of optical fibers is 6; and/or the filling piece is made of any one of water-absorbing resin, sponge and polyester blend fiber.

Further, the light unit further comprises a buffer layer arranged between the sleeve and the water blocking tape.

Further, the butterfly-shaped optical cable body further comprises two U-shaped grooves formed in the outer sheath, and the two U-shaped grooves are symmetrically formed in the upper end face and the lower end face of the outer sheath respectively; and/or at least two stiffeners are symmetrically arranged on both radial sides of the light unit.

By applying the technical scheme of the utility model, when the aerial use is needed, two butterfly-shaped optical cable bodies can be placed in sequence along the vertical direction, wherein the two butterfly-shaped optical cable bodies are the butterfly-shaped optical cable bodies of the embodiment of the utility model, so that the external dimensions of the first matching part and the second matching part of the two butterfly-shaped optical cable bodies are matched, the first matching part and the second matching part can be mutually matched, and thus, the second matching part of the butterfly-shaped optical cable body positioned above and the first matching part of the butterfly-shaped optical cable body positioned below can be mutually matched, the butterfly-shaped optical cable body positioned below can bear the butterfly-shaped optical cable body positioned above, and the relative movement between the two optical cables can be avoided, namely, the cable bearing is realized. Meanwhile, when the old cable is aged and damaged and the new cable needs to be replaced, the new cable can be installed on one side of the old cable, namely, the new cable is matched with the old cable, and then the old cable is peeled off, so that the butterfly-shaped optical cable body is convenient to maintain and replace. Adopt but unsmooth complex holds cable structure, but aerial use's many butterfly-shaped optical cable bodies can bear each other, need not to set up self-supporting structure fixed optical cable on every butterfly-shaped optical cable body, because first cooperation portion and second cooperation portion all directly offer or set up on the oversheath, be equivalent to utilizing the appearance structure of butterfly-shaped optical cable body self to realize holding the cable with the cable, can reduce the radial dimension of butterfly-shaped optical cable body like this, alleviate the weight of butterfly-shaped optical cable body simultaneously, thereby ensure that butterfly-shaped optical cable body can aerial use, also can be applied to indoor occasions such as direct burial, pipeline.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of a butterfly-cable body of a butterfly-cable according to the utility model;

FIG. 2 shows a schematic structural view of the optical unit of the butterfly cable body of FIG. 1; and

fig. 3 shows a schematic structural view of an embodiment of a butterfly cable body of a butterfly cable according to the utility model and a schematic view in a first radial direction and a second radial direction.

Wherein the above figures include the following reference numerals:

1. a reinforcing member; 2. a buffer layer; 3. an optical fiber; 4. a sleeve; 5. a water blocking tape; 6. an outer sheath; 61. a first mating portion; 611. a first fitting projection; 612. a second fitting groove; 62. a second mating portion; 621. a first fitting groove; 622. a second fitting projection; 63. a U-shaped groove; 7. a filler; 10. a light unit.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It should be noted that, the self-supporting optical cable in the prior art is used in an overhead manner through a steel wire hanging wire, a hanging point is also required to be determined in advance in the installation process, and a matched installation hardware fitting is selected, so that the installation process is complicated, and the overhead operation is inconvenient; in addition, the production process of the self-supporting optical cable is also relatively complex.

It should be noted that, as shown in fig. 3, in the embodiment of the present utility model, the "left-right direction" of the butterfly-shaped optical cable body is the first radial direction A1, and the "up-down direction" of the butterfly-shaped optical cable body is the second radial direction A2.

As shown in fig. 1 and 2, an embodiment of the present utility model provides a butterfly cable. The butterfly-shaped optical cable includes the butterfly-shaped optical cable body, and the butterfly-shaped optical cable body includes: the optical unit 10 and at least two stiffeners 1, at least two stiffeners 1 set up in the radial both sides of optical unit 10, butterfly-shaped optical cable body still includes: an outer sheath 6 covering the outer circumference of the light unit 10 and the at least two stiffeners 1; and a cable bearing structure, which comprises a first matching part 61 arranged at the upper end of the outer sheath 6 and a second matching part 62 arranged at the lower end of the outer sheath 6, wherein the shape of the first matching part 61 is matched with that of the second matching part 62.

In the above technical scheme, the two reinforcing members 1 are symmetrically arranged on two sides of the optical unit 10 along the first radial direction A1, the reinforcing members 1 are made of non-metal materials, the weight of the butterfly-shaped optical cable body can be reduced, the outer sheath 6 is made of high-molecular-weight polyethylene materials, and the high-molecular-weight polyethylene materials have excellent wear resistance, ageing resistance and chemical resistance, so that the sheath is difficult to wear, crack and age under severe environments. In the occasion that needs overhead use, can place two butterfly-shaped optical cable bodies in proper order along vertical direction, wherein, two butterfly-shaped optical cable bodies are the butterfly-shaped optical cable body of the embodiment of this utility model, therefore the overall dimension of first cooperation portion 61 and the second cooperation portion 62 of two butterfly-shaped optical cable bodies is the same, because the appearance looks adaptation of first cooperation portion 61 and second cooperation portion 62 of every butterfly-shaped optical cable body, the second cooperation portion 62 of the butterfly-shaped optical cable body that is located the top and the first cooperation portion 61 of the butterfly-shaped optical cable body that is located the below can cooperate, and like this, the butterfly-shaped optical cable body that is located the below can bear the butterfly-shaped optical cable body that is located the top, and can avoid relative movement between two optical cables, realize with the cable and hold the cable promptly. And a section of laying line has two or even many the same butterfly-shaped optical cable bodies to transmit data, and the transmission efficiency of the optical cable is obviously improved. Meanwhile, when the old cable is aged and damaged and the new cable needs to be replaced, the new cable can be installed on one side of the old cable, namely, the new cable is matched with the old cable, and then the old cable is peeled off, so that the butterfly-shaped optical cable body is convenient to maintain and replace.

Through the above-mentioned setting, adopt first cooperation portion 61 and second cooperation portion 62 that can mutually support, many butterfly-shaped optical cable bodies that aerial use can bear each other, need not through setting up the fixed optical cable of self-supporting structure on every butterfly-shaped optical cable body, because first cooperation portion 61 and second cooperation portion 62 all directly offer or set up on oversheath 6, be equivalent to utilizing the appearance structure of butterfly-shaped optical cable body self to realize carrying the cable with the cable, can reduce the radial dimension of butterfly-shaped optical cable body like this, alleviate the weight of butterfly-shaped optical cable body simultaneously, thereby ensure that butterfly-shaped optical cable body can aerial use, also can be applied to indoor occasions such as direct buries, pipeline.

In one embodiment, the butterfly-shaped optical cable includes a plurality of the above-mentioned butterfly-shaped optical cable bodies, and the first fitting portion 61 and the second fitting portion 62 of each butterfly-shaped optical cable body are identical in external dimension, and in the adjacent two butterfly-shaped optical cable bodies, the second fitting portion 62 of the butterfly-shaped optical cable body located above can be mated with the first fitting portion 61 of the butterfly-shaped optical cable body located below in a concave-convex manner. Like this, the butterfly-shaped optical cable body that is located the below can bear the weight of the butterfly-shaped optical cable body that is located the top, and can avoid the relative movement between two optical cables, realizes carrying the cable with the cable promptly. And a section of laying line has two or even many the same butterfly-shaped optical cable bodies to transmit data, and the transmission efficiency of the optical cable is obviously improved. Meanwhile, when the old cable is aged and damaged and the new cable needs to be replaced, the new cable can be installed on one side of the old cable, namely, the new cable is matched with the old cable, and then the old cable is peeled off, so that the butterfly-shaped optical cable body is convenient to maintain and replace.

In an embodiment of the utility model, the number of stiffeners 1 may also be a multiple of 2 (e.g. 4, 6, etc.), a plurality of stiffeners 1 being symmetrically arranged on both sides of the light unit 10.

In one embodiment of the utility model, in each butterfly-shaped optical cable body, the diameter of each reinforcement member 1 is 2mm, and the reinforcement members 1 are made of glass Fiber Rods (FRP), so that on one hand, the FRP rods have good bending property and excellent mechanical strength, are non-metal materials, are safer and more reliable, and can provide good reinforcing effect for the butterfly-shaped optical cable bodies. On the other hand, the reinforcing member 1 can also function to bear the weight of the optical cable itself and to improve the lateral pressure resistance of the optical cable.

As shown in fig. 1, in the embodiment of the present utility model, the first fitting portion 61 includes a first fitting projection 611, and the second fitting portion 62 includes a first fitting groove 621 opened on the outer sheath 6.

In the above-described technical solution, the first fitting projection 611 and the first fitting groove 621 are rectangular in shape, and the width dimension and the depth dimension of the first fitting projection 611 and the first fitting groove 621 are the same. The first fitting projection 611 and the first fitting groove 621 are located at an intermediate position of the butterfly-shaped optical cable body in the first radial direction A1.

In one embodiment of the present utility model, the shape of the first fitting protrusion 611 and/or the first fitting groove 621 is any one of a semicircle and a polygon.

As shown in fig. 1, in the embodiment of the present utility model, the first fitting portion 61 further includes a second fitting groove 612 opened at an upper end of the first fitting protrusion 611, and the second fitting portion 62 further includes a second fitting protrusion 622 provided at a bottom of the first fitting groove 621 and capable of fitting to an outer shape of the second fitting groove 612.

In the above-described aspect, the shapes of the second fitting protrusion 622 and the second fitting groove 612 are rectangular, and the width dimensions and the depth dimensions of the second fitting protrusion 622 and the second fitting groove 612 are the same, and the second fitting protrusion 622 and the second fitting groove 612 are located at the intermediate position of the butterfly-shaped optical cable body in the first radial direction A1.

As shown in fig. 1, in the embodiment of the present utility model, the width L1 of the second fitting groove 612 and the interval L2 between the inner sides of the two reinforcing pieces 1 have the following relationship: l2-2mm is less than or equal to L1 and less than or equal to L2-1mm.

That is, the width L1 of the second fitting groove 612 is slightly smaller than the interval L2 between the inner sides of the two reinforcing members 1.

As shown in fig. 1, in the embodiment of the present utility model, the width L1 of the second fitting groove 612 has the following relationship with the width L3 of the outer sheath 6: l1 is less than or equal to 1/3L3.

Through the above arrangement, the problem of affecting the structural stability of the butterfly-shaped optical cable body due to the too wide width of the second fitting groove 612 is avoided, thereby ensuring the structural stability of the butterfly-shaped optical cable body.

In one embodiment of the present utility model, the width L1 of the second fitting projection 622 and the second fitting groove 612 is 2.2mm and the depth L4 is 0.6mm. Thus being convenient for better fixation in the production and transportation process and being not easy to generate loose rings.

In another embodiment of the present utility model, the number of the fitting protrusions and/or the fitting grooves included in the first fitting portion 61 and the second fitting portion 62 may be greater than 2, and the fitting protrusions and/or the fitting grooves included in the first fitting portion 61 and the second fitting portion 62 may be disposed at other positions of the upper end and the lower end of the outer jacket 6 (i.e., may not be disposed at the intermediate position of the butterfly-shaped optical cable body in the first radial direction A1), depending on practical requirements.

As shown in fig. 2, in the embodiment of the present utility model, the light unit 10 includes a plurality of optical fibers 3, a ferrule 4, a water blocking tape 5, and a filler 7 filling gaps between the plurality of optical fibers 3, which are sequentially disposed from the inside to the outside.

In the above technical solution, the sleeve 4 is used to replace the colored optical fiber, the optical fiber with a diameter of 180 μm is used to replace the optical fiber with a diameter of 245 μm, and the optical unit 10 adopts a 6-core one-tube structure (i.e. the optical unit 10 includes 6 optical fibers), compared with the butterfly-shaped optical cable body in the prior art, the butterfly-shaped optical cable body of the present utility model can accommodate more optical fibers, thereby significantly improving the transmission efficiency of the butterfly-shaped optical cable body.

In one embodiment of the utility model, the inner diameter of the sleeve 4 is 1.8mm, which ensures the bending performance of the light unit 10 while reducing damage to the components inside the light unit 10 during the wrapping process.

In the embodiment of the present utility model, the filler 7 is made of any one of a water absorbent resin, a sponge, and a polyester blend fiber.

In the above-described embodiments, the inside of the light unit 10 is filled in a dry manner, i.e., in a non-ointment manner, and the water absorbent resin may be a dry super absorbent resin (SAP). Compared with the water blocking mode of the ointment filling mode, the dry filling is more environment-friendly and safer, so that when the circuit is damaged under the condition of irresistible factors such as circuit aging and natural disasters, the ointment filled with the water blocking ointment can be prevented from entering the external environment, and even if components in the butterfly-shaped optical cable body are exposed in the high-voltage environment, the components and parts in the butterfly-shaped optical cable body cannot be damaged by surrounding people and objects.

As shown in fig. 2, in an embodiment of the present utility model, the light unit 10 further comprises a buffer layer 2 provided between the sleeve 4 and the water blocking tape 5.

In the above technical scheme, the buffer layer 2 is woven by fiber yarn, and can play a role of buffering, further protect the optical fiber 3, and wrap the water-blocking tape 5 outside the fiber yarn woven layer.

In one embodiment of the utility model, the overall thickness of the fiber yarn braid and the water blocking tape 5 is 0.35mm, which can meet the water blocking requirement.

As shown in fig. 1, in the embodiment of the present utility model, the butterfly-shaped optical cable body further includes two U-shaped grooves 63 formed on the outer sheath 6, and the two U-shaped grooves 63 are symmetrically formed on the upper end surface and the lower end surface of the outer sheath 6 respectively.

In the above technical solution, two U-shaped grooves are located at the middle position of the butterfly-shaped optical cable body along the first radial direction A1, where one U-shaped groove is formed at the bottom of the second assembly groove 612, and the other U-shaped groove is formed on the end face of the second assembly protrusion 622.

By the arrangement, the U-shaped groove is adopted to replace the V-shaped groove of the butterfly-shaped optical cable body in the prior art, the U-shaped groove 63 is smaller in appearance and more attractive; and meanwhile, the tearing rope structure is replaced, so that the outer sheath 6 of the butterfly-shaped optical cable body can be easily peeled off, and the optical unit 10 is not damaged.

In another embodiment of the utility model, the number of U-shaped grooves may be set to only one or more than 2.

In one embodiment of the utility model, the cable thickness is about 3.5mm and the width is about 8mm, which is reduced by 33% compared to the lateral dimension of a conventional butterfly cable body, while being reduced by 20% to 40% in mass. The nonmetal reinforcement is adopted, and the fiber braiding layer is wound outside the sleeve, so that the optical cable still has excellent mechanical properties, and the tensile strength can reach 4000N-5000N.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: adopt but unsmooth complex holds cable structure, but aerial use's many butterfly-shaped optical cable bodies can bear each other, need not to set up self-supporting structure fixed optical cable on every butterfly-shaped optical cable body, because first cooperation portion and second cooperation portion all directly offer or set up on the oversheath, be equivalent to utilizing the appearance structure of butterfly-shaped optical cable body self to realize holding the cable with the cable, can reduce the radial dimension of butterfly-shaped optical cable body like this, alleviate the weight of butterfly-shaped optical cable body simultaneously, thereby ensure that butterfly-shaped optical cable body can aerial use, also can be applied to indoor occasions such as direct burial, pipeline. The butterfly-shaped optical cable body is internally provided with no metal material and is filled in a dry mode, so that even if the butterfly-shaped optical cable body is damaged under the condition of being subjected to line aging, natural disasters and other irresistible factors, the butterfly-shaped optical cable body is not damaged due to the fact that the optical unit is exposed to a high-voltage environment.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The butterfly-shaped optical cable is characterized in that the butterfly-shaped optical cable comprises a butterfly-shaped optical cable body, the butterfly-shaped optical cable body comprises an optical unit (10) and at least two stiffeners (1), at least two stiffeners (1) are arranged on two radial sides of the optical unit (10), and the butterfly-shaped optical cable body further comprises:

an outer sheath (6) that covers the light unit (10) and the outer circumferences of at least two of the stiffeners (1); and

the cable bearing structure comprises a first matching part (61) arranged at the upper end of the outer sheath (6) and a second matching part (62) arranged at the lower end of the outer sheath (6), wherein the appearance of the first matching part (61) is matched with the appearance of the second matching part (62).

2. The butterfly cable according to claim 1, wherein the first mating portion (61) comprises a first mating protrusion (611) and the second mating portion (62) comprises a first mating groove (621) provided in the outer jacket (6).

3. The butterfly cable according to claim 2, characterized in that the shape of the first fitting protrusion (611) and/or the first fitting groove (621) is any one of rectangular, semicircular and polygonal.

4. The butterfly-shaped optical cable according to claim 2, characterized in that the first fitting portion (61) further comprises a second fitting groove (612) provided at an upper end of the first fitting projection (611), and the second fitting portion (62) further comprises a second fitting projection (622) provided at a groove bottom of the first fitting groove (621) and capable of fitting to an outer shape of the second fitting groove (612).

5. The butterfly cable according to claim 4, characterized in that the width L1 of the second fitting groove (612) and the spacing L2 between the inner sides of the two strength members (1) have the following relationship: l2-2mm is less than or equal to L1 and less than or equal to L2-1mm; and/or the number of the groups of groups,

the width L1 of the second fitting groove (612) and the width L3 of the outer sheath (6) have the following relationship: l1 is less than or equal to 1/3L3.

6. The butterfly cable according to any one of claims 1 to 5, characterized in that it comprises a plurality of the butterfly cable bodies arranged in succession, the second mating portion (62) of the butterfly cable body located above being able to be mated with the first mating portion (61) of the butterfly cable body located below in adjacent two of the butterfly cable bodies.

7. The butterfly-shaped optical cable according to any one of claims 1 to 5, characterized in that the optical unit (10) comprises a plurality of optical fibers (3), a sleeve (4), a water-blocking tape (5) and a filler (7) filling at the gaps between the plurality of optical fibers (3) arranged in sequence from the inside to the outside.

8. Butterfly cable according to claim 7, characterized in that the number of optical fibers (3) is 6; and/or the filling piece (7) is made of any one of water-absorbing resin, sponge and polyester blend fiber.

9. The butterfly-shaped optical cable according to claim 7, characterized in that the optical unit (10) further comprises a buffer layer (2) arranged between the sleeve (4) and the water-blocking tape (5).

10. The butterfly-shaped optical cable according to any one of claims 1 to 5, characterized in that the butterfly-shaped optical cable body further comprises two U-shaped grooves (63) formed in the outer sheath (6), wherein the two U-shaped grooves (63) are symmetrically formed in the upper end face and the lower end face of the outer sheath (6), respectively; and/or the number of the groups of groups,

at least two of the stiffeners (1) are symmetrically arranged on both radial sides of the light unit (10).