CN202422854U - Framework-type optical-electricity hybrid cable - Google Patents

Abstract

The utility model relates to a skeleton-type photoelectric hybrid cable, which comprises a cable core and a protective layer covering the outer periphery of the cable core. There are optical transmission media or electrical transmission media. Because the utility model adopts a skeleton structure, the photoelectric hybrid cable has good lateral pressure resistance and impact resistance, and is convenient for construction; at the same time, the utility model can be provided with both optical transmission medium and electrical transmission medium in the skeleton groove, Wide range of applications.

Description

Skeleton optical hybrid cable

technical field

The utility model relates to a communication cable, in particular to a skeleton type photoelectric hybrid cable. the

Background technique

As the telephone service in the global telecommunication network business shows a steady growth trend, while the data service shows an exponential growth trend, voice, data and images often require larger network capacity and wider bandwidth. In the direction of digitization, broadband, and intelligence, the optical fiber of the access network has become the main trend of the development of the access network. Specifically, the construction of an optical fiber user access network with large-capacity ribbon optical cable as the main transmission medium is being accelerated. However, in the specific construction and use, there are certain differences in the construction technology of ribbon optical cables of various specifications, and the biggest difference is the application of optical cable longitudinal breaking (referred to as skylight) technology. In this regard, the skeleton ribbon cable has a natural structural advantage, and at the same time, it is getting more and more attention in the access network. the

Contents of the invention

The purpose of the utility model is to provide a skeleton-type photoelectric hybrid cable with superior performance, good impact resistance and lateral pressure resistance. the

In order to achieve the above object, the technical scheme adopted in the utility model is:

A frame-type photoelectric hybrid cable, which includes a cable core and a protective layer covering the outer periphery of the cable core, the cable core includes a columnar frame, and a plurality of frame grooves are opened on the outer cylindrical surface of the frame , the skeleton groove is provided with an optical transmission medium or an electrical transmission medium.

Preferably, the skeleton includes a central reinforcement, and a skeleton body disposed around the central reinforcement, and the skeleton groove is opened on the outer cylindrical surface of the skeleton body. the

Preferably, the central reinforcement is a single steel wire or a twisted strand made of multiple steel wires. the

Preferably, the skeleton groove is arranged in rotation on the outer cylindrical surface of the skeleton. the

Preferably, the optical transmission medium is an optical fiber ribbon or an optical bundle, and the electrical transmission medium is a copper wire. the

Preferably, the copper wire includes a copper conductor and a wire insulation layer covering the outer periphery of the copper conductor. the

Preferably, the skeleton grooves are evenly distributed on the cross-section of the skeleton. the

Preferably, the protective layer includes a water-blocking tape covering the outer periphery of the cable core, a double-sided plastic-coated aluminum tape covering the outer periphery of the water-blocking tape, and a double-sided plastic coated aluminum tape covering the outer periphery of the cable core. The outer sheath of the plastic aluminum tape. the

Preferably, a tear rope is arranged between the water blocking tape and the double-sided plastic-coated aluminum tape. the

Preferably, a plurality of ribs are provided on the outer cylindrical surface of the skeleton. the

Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art: 1. Since the utility model adopts a skeleton structure, the photoelectric hybrid cable has good lateral pressure resistance and impact resistance, and is convenient for construction; 2. . Since the utility model can be provided with both optical transmission medium and electrical transmission medium in the skeleton groove, the utility model has a wide range of applications. the

Description of drawings

Accompanying drawing 1 is the schematic cross-sectional view of the framework type photoelectric hybrid cable of the present invention. the

In the above drawings: 1, cable core; 11, skeleton; 12, copper conductor; 13, optical fiber ribbon; 14, rib mark; 111, central reinforcement; 112, skeleton body; 1121, skeleton groove; 121, copper conductor; 122. Wire insulation layer;

2. Protective layer; 21. Water blocking tape; 22. Double-sided plastic-coated aluminum tape; 23. Sheath;

3. Tear the rope.

Detailed ways

The utility model will be further described below in conjunction with the embodiment shown in the accompanying drawings. the

Embodiment 1: Refer to the accompanying drawing 1. the

A skeleton-type photoelectric hybrid cable, which includes a cable core 1 and a protective layer 2 covering the outer periphery of the cable core 1 . the

The cable core 1 includes a column skeleton 11 , and the skeleton 11 includes a central reinforcement 111 and a skeleton body 112 arranged around the central reinforcement 111 . the

The central reinforcement 111 is a single steel wire or a twisted wire made of multiple steel wires, which is used to ensure the tensile performance of the skeleton-type photoelectric hybrid cable. The frame body 112 is extruded from high-hardness plastic (such as high-density polyethylene), and six frame grooves 1121 are evenly opened on the outer cylindrical surface thereof, and a plurality of ribs 14 are provided. Several optical transmission media or several electrical transmission media are arranged in the skeleton groove 1121 . The skeleton groove 1121 is arranged in rotation on the outer cylindrical surface of the skeleton body 112 . the

The optical transmission medium is an optical fiber ribbon 13 or an optical beam, which is put into the skeleton groove 1121, and is controlled by a suitable pitch so that it forms a reasonable excess length after being cabled. The electrical transmission medium is a copper wire 12 , and the copper wire includes a copper conductor 121 and a wire insulation layer 122 covering the outer periphery of the copper conductor 121 . the

The protective layer 2 includes a water-blocking tape 21 covering the outer periphery of the cable core 1 , a double-sided plastic-coated aluminum tape 22 covering the outer periphery of the water-blocking tape 21 , and a sheath 23 covering the outer periphery of the double-sided plastic-coated aluminum tape 22 . the

The water blocking strip 21 is wrapped vertically or overlapped around the outer periphery of the cable core 1, and its thickness is 0.1-0.3mm. The water blocking tape 21 adopts a high expansion rate water blocking tape, which can fully guarantee the water blocking performance. The double-sided plastic-coated aluminum strip 22 is longitudinally wrapped on the outer periphery of the water blocking strip 21, and its thickness is 0.2-0.3mm. 1-2 tearing ropes 3 are arranged between the water-blocking tape 21 and the double-sided plastic-coated aluminum tape 22, which is convenient for peeling. After peeling, the optical transmission medium 13 can be directly taken out, which is convenient for splitting. The sheath 23 is made of polyethylene material, which has a certain bonding strength with the double-sided plastic-coated aluminum strip 22, and its thickness is 1.5-2.5 mm. the

The frame-type photoelectric hybrid cable has good lateral pressure resistance and longitudinal moisture resistance. When it is subjected to lateral pressure, the optical transmission medium and electrical transmission medium will hardly be damaged before the deformation of the frame 11, which is beneficial to construction. At the same time, due to its dry water-blocking structure without fiber paste and cable paste, it overcomes the shortcomings of traditional grease that is not easy to remove, reduces construction preparation time, greatly improves splicing efficiency, and facilitates construction and maintenance. Moreover, the skeleton-type photoelectric hybrid cable has high light assembly density, relatively small diameter, light weight, easy laying, and cost saving. At the same time, it can provide a variety of signal transmissions. It has high adaptability to the same equipment, strong scalability, and a wide range of applications. , avoiding repeated wiring. the

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model. the

Claims (10)

1. A skeleton-type photoelectric hybrid cable, which includes a cable core and a protective layer coated on the outer periphery of the cable core, characterized in that: the cable core includes a columnar skeleton, and the outer cylindrical surface of the skeleton is A plurality of skeleton grooves are opened, and the optical transmission medium or the electrical transmission medium is arranged in the skeleton grooves. 2. The frame-type photoelectric hybrid cable according to claim 1, characterized in that: the frame includes a central reinforcement, a frame body arranged around the central reinforcement, and the frame groove is opened in the On the outer cylindrical surface of the skeleton body. 3. The frame-type photoelectric hybrid cable according to claim 2, characterized in that: the central reinforcement is a single steel wire or a twisted wire formed by twisting multiple steel wires. 4. The frame-type optical-electrical hybrid cable according to claim 1, characterized in that: the frame groove is arranged in rotation on the outer cylindrical surface of the frame. 5. The frame-type optical-electrical hybrid cable according to claim 1, characterized in that: the optical transmission medium is an optical fiber ribbon or an optical bundle, and the electrical transmission medium is a copper wire. 6 . The frame-type optical-electrical hybrid cable according to claim 5 , wherein the copper conductor comprises a copper conductor and a conductor insulation layer covering the outer periphery of the copper conductor. 7 . 7. The frame-type optical-electrical hybrid cable according to claim 1, characterized in that: the frame grooves are evenly distributed on the cross-section of the frame. 8. The frame-type photoelectric hybrid cable according to claim 1, characterized in that: the protective layer includes a water-blocking tape covering the outer periphery of the cable core, and a water-blocking tape covering the outer periphery of the water-blocking tape. A double-sided plastic-coated aluminum strip and a sheath covering the outer periphery of the double-sided plastic-coated aluminum strip. 9. The skeleton-type photoelectric hybrid cable according to claim 8, characterized in that: a tearing rope is arranged between the water-blocking tape and the double-sided plastic-coated aluminum tape. 10. The frame-type optical-electrical hybrid cable according to claim 1, characterized in that: the outer cylindrical surface of the frame is provided with a plurality of ribs.

Images