CN215641973U - Armored butterfly-shaped lead-in optical cable - Google Patents

Abstract

The utility model discloses an armored butterfly-shaped drop cable which comprises a first sheath, optical fiber units, reinforcing pieces, a water blocking layer, an armor layer and a second sheath, wherein the first sheath is a butterfly-shaped sheath, a plurality of optical fiber units are arranged in the center of the butterfly-shaped sheath, and the two reinforcing pieces are respectively arranged at the left end and the right end of the butterfly-shaped sheath; the waterproof layer, the armor layer and the second sheath are sequentially arranged on the periphery of the first sheath from inside to outside. The waterproof performance and the external force stretching or impact resistance of the product are greatly enhanced, and the waterproof material can be widely applied to indoor and outdoor complex and changeable environments.

Description

Armored butterfly-shaped lead-in optical cable

Technical Field

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

Background

Optical fiber cables (optical fiber cables) are manufactured to meet optical, mechanical, or environmental performance specifications and are telecommunication cable assemblies that utilize one or more optical fibers disposed in a surrounding jacket as the transmission medium and that may be used individually or in groups. The optical cable is mainly composed of optical fiber, plastic protective sleeve and plastic outer skin. The butterfly-shaped optical cable is a novel user access optical cable, plays a unique role in constructing networks such as an intelligent building, a digital community, a campus network and a local area network, and integrates the characteristics of an indoor soft optical cable and a self-supporting optical cable.

When the butterfly-shaped optical cable is laid outdoors, the optical cable is directly exposed in the outdoor environment, long-time wind blows and is exposed to the sun, the outer protective layer is easy to age, rainwater is easy to permeate into the optical cable after rainfall, and the reliability and the service life of the product are influenced. In addition, when the optical cable is laid indoors and outdoors, the optical cable is also easily subjected to the action of external tension or self gravity, so that the possibility of damaging the internal optical fiber is caused. Therefore, the development of the optical cable which can be laid indoors and outdoors is a strong guarantee for improving the performance of products. In view of the above, the present inventors have studied and designed an armored butterfly-shaped drop cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an armoured butterfly-shaped drop optical cable, through set up water-blocking layer and armor in the optical cable periphery, realize waterproof and shock-resistant purpose to the life of extension product improves the stability of product transmission data indoor outer.

The utility model provides an armored butterfly-shaped drop cable which comprises a first sheath, optical fiber units, reinforcing pieces, a water blocking layer, an armor layer and a second sheath, wherein the first sheath is a butterfly-shaped sheath, a plurality of optical fiber units are arranged in the center of the butterfly-shaped sheath, and the two reinforcing pieces are respectively arranged at the left end and the right end of the butterfly-shaped sheath; the waterproof layer, the armor layer and the second sheath are sequentially arranged on the periphery of the first sheath from inside to outside. The waterproof performance and the external force stretching or impact resistance of the product are greatly enhanced, and the waterproof material can be widely applied to indoor and outdoor complex and changeable environments.

According to at least one embodiment of the present disclosure, the water-blocking layer is one or more layers of a polyester non-woven fabric composite polymer absorption resin layer. The present disclosure may provide one or more water-resistant layers depending on the particular circumstances of the installation environment to provide water protection at different levels of strength.

According to at least one embodiment of the present disclosure, the number of the optical fiber units is 2 to 12. The structure of the armor layer provides the protection function against external force, so that the core loading capacity in the optical cable is larger.

According to at least one embodiment of the present disclosure, the fiber optic cable further includes an opening line disposed between the first jacket and the water resistant layer. The cable rope that opens that this disclosure set up can be so that operating personnel more quick when peeling off this disclosure optical cable, and is simple and convenient.

According to at least one embodiment of the present disclosure, air bubbles are distributed inside the first sheath and/or the second sheath. The distributed bubbles are beneficial to reducing the overall weight of the optical cable, and the weight of the optical cable is reduced when the optical cable is laid vertically.

According to at least one embodiment of the present disclosure, the strength member is an FPR non-metal strength member or a metal strength member, which can improve the tensile strength of the optical cable.

According to at least one embodiment of the present disclosure, the optical cable further includes a cable core filler, and the cable core filler is filled between the first sheath and the water blocking layer. The cable core filling body can ensure that the optical cable structure is not easily extruded and deformed by external force.

According to at least one embodiment of the present disclosure, the optical cable further includes a fixing frame, the fixing frame is an i-shaped structure, the two fixing frames are respectively disposed on the upper side and the lower side of the first sheath, and the upper end and the lower end of the fixing frame are respectively in contact with the waist portion of the first sheath and the inner surface of the water blocking layer.

According to at least one embodiment of the present disclosure, the center of the reinforcing member is a hollow structure, and the reinforcing member of the present disclosure adopts the hollow structure, so that the self weight is further reduced, and sufficient strength can be provided.

According to at least one embodiment of the present disclosure, V-shaped grooves are formed on the upper side and the lower side of the waist of the first sheath, and the present disclosure adopts a V-shaped groove structure to facilitate peeling of the butterfly-shaped optical cable.

Drawings

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

Fig. 1 is a schematic structural view of an armored butterfly drop cable of the present disclosure.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the present disclosure discloses an armored butterfly-shaped drop cable, which includes a first sheath 1, an optical fiber unit 2, a strength member 3, a water-blocking layer 4, an armor layer 5, and a second sheath 6, wherein the first sheath 1 is a butterfly-shaped sheath, and preferably adopts a low-smoke zero-halogen type sheath; the optical fiber unit 2 is arranged in the center of the butterfly-shaped sheath, and 2-12 optical fibers can be arranged according to different engineering projects; the two reinforcing pieces 3 are respectively arranged at the left end and the right end of the butterfly-shaped sheath, and the reinforcing pieces are FPR (flexible flat panel radio) non-metal reinforcing pieces or metal reinforcing pieces such as steel wires and the like, so that the tensile strength of the optical cable can be improved; the water-resistant layer 4, the armor layer 5 and the second sheath 6 are sequentially arranged on the periphery of the first sheath 1 from inside to outside, the water-resistant layer 4 is one or more layers of polyester non-woven fabric composite polymer absorption resin layers, the armor layer 5 is a steel belt or an aluminum belt, and the second sheath 6 is a PE sheath. The waterproof performance and the external force stretching or impact resistance of the product are greatly enhanced, and the waterproof material can be widely applied to indoor and outdoor complex and changeable environments.

This openly still including opening hawser 7, should open hawser 7 and locate between first sheath 1 and water-blocking layer 4, the hawser that opens that this disclosure set up can make operating personnel peel off this disclosure optical cable time faster, simple and convenient.

The first sheath 1 and/or the second sheath 6 are distributed with bubbles inside. The distributed bubbles are beneficial to reducing the overall weight of the optical cable, and the weight of the optical cable is reduced when the optical cable is laid vertically.

The present disclosure further includes a cable core filler (not shown) filled in the cavity between the first sheath and the water blocking layer. The cable core filling body can ensure that the optical cable structure is not easily extruded and deformed by external force.

The present disclosure further includes a fixing frame (not shown) having an i-shaped structure, wherein the two fixing frames are respectively disposed at the upper and lower sides of the first sheath, and the upper and lower ends of the fixing frame are respectively in contact with the waist portion of the first sheath and the inner surface of the water blocking layer.

The center of the reinforcing part 3 of the present disclosure is a hollow structure, and the reinforcing part of the present disclosure adopts the hollow structure, so that the self weight is further reduced, and on the other hand, sufficient strength can be provided. V-shaped grooves 11 are formed in the upper side and the lower side of the waist of the first sheath 1, and the butterfly-shaped optical cable is convenient to peel off by adopting a V-shaped groove structure.

According to the waterproof armored cable, the waterproof, armored and sheath structures are sequentially arranged outside the traditional butterfly-shaped optical cable from inside to outside, so that the waterproof performance and the external force stretching or impact resistance of the product are greatly enhanced. Through the special structural design, the data transmission of the product is ensured to have high reliability. The laying method can be laid in indoor and outdoor complex and various environments, and is suitable for overhead, in-pipeline or direct-buried laying modes.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims (8)

1. An armored butterfly-shaped drop cable is characterized by comprising a first sheath, optical fiber units, reinforcing pieces, a water blocking layer, an armor layer and a second sheath, wherein the first sheath is a butterfly-shaped sheath, a plurality of optical fiber units are arranged in the center of the butterfly-shaped sheath, and the two reinforcing pieces are respectively arranged at the left end and the right end of the butterfly-shaped sheath; the waterproof layer, the armor layer and the second sheath are sequentially arranged on the periphery of the first sheath from inside to outside;

air bubbles are distributed in the first sheath and/or the second sheath;

the lead-in optical cable further comprises a fixing frame which is of an I-shaped structure, the fixing frame is arranged on the upper side and the lower side of the first sheath respectively, and the upper end and the lower end of the fixing frame are in contact with the waist of the first sheath and the inner surface of the waterproof layer respectively.

2. The drop cable of claim 1, wherein the water-blocking layer is one or more layers of a polyester non-woven fabric composite polymer absorbent resin layer.

3. The drop cable of claim 1, wherein the number of optical fiber units is 2-12.

4. The drop cable of claim 1, further comprising an opening cord disposed between the first jacket and the water-blocking layer.

5. The drop cable of claim 1, wherein the strength member is a FPR non-metallic strength member or a metallic strength member.

6. The drop cable of claim 1, further comprising a core filler, wherein the core filler is filled between the first jacket and the water blocking layer.

7. The drop cable of claim 1, wherein the strength member has a hollow center.

8. The drop cable of claim 1, wherein the first jacket has V-grooves on both sides of the waist.

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