Enhanced light access photoelectric composite cable

Abstract

The utility model discloses an enhanced light access photoelectric composite cable, which comprises an outer sheath, an optical unit and an electric unit are arranged in the outer sheath side by side, the outer sheath is provided with a tearing groove between the optical unit and the electric unit, the optical unit comprises a central reinforcing member, and the central reinforcing member is provided with an optical fiber. The outer sheath directly clings to and wraps the periphery of the central reinforcing member, the outer peripheral surface of the central reinforcing member is provided with an optical fiber groove extending along the axial direction, and a tight tube optical fiber is embedded in the optical fiber groove in a matching manner. The enhanced light access photoelectric composite cable provided by the utility model not only enables the optical cable to be long in span, high in tensile property and high in side pressure resistance in access application, but also is smaller and lighter in size, and is more convenient to construct and strip.

Description

Technical Field

[0001] The utility model relates to a communication facility, in particular to a photoelectric composite cable. Background Art

[0002] The current era is a period of diversified development of optical communications. As a carrier of big data information transmission, the construction of optical fiber cables is increasingly valued by users. We are in an era of multi-purpose transmission of communication optical cables. Optical cables need to be suitable for many special environments, which requires optical cables to reflect the characteristics of high performance, long-term stability, low cost, high reliability, and novel structure.

[0003] In the use scenario of optical cable to the home, the traditional home optical cable structure has a single function, and the optical fiber transmission is greatly affected by the cable structure and the application environment. The multi-purpose conditions of the optical cable cannot meet the application environment. For the access optoelectronic composite cable with a lightweight structure and enhanced performance, it is more challenging to meet the above characteristics. The current structure is far from meeting the needs of the current multi-purpose environment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an enhanced light-weight access photoelectric composite cable, which not only makes the optical cable have a long span, high tensile strength and high lateral pressure resistance in access use, but also makes the optical cable smaller and lighter, and makes construction and optical cable stripping more convenient.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A reinforced light-weight access optoelectronic composite cable comprises an outer sheath, in which an optical unit and an electrical unit are arranged side by side, the outer sheath is provided with a tear groove between the optical unit and the electrical unit, the optical unit comprises a central reinforcement member, the outer sheath is directly and tightly wrapped around the periphery of the central reinforcement member, an optical fiber groove extending in the axial direction is provided on the outer peripheral surface of the central reinforcement member, and a tight-fitting optical fiber is matched and embedded in the optical fiber groove.

[0007] Furthermore, there is only one optical fiber groove, which is arranged at the outermost side of the central reinforcement member away from the electrical unit.

[0008] Furthermore, a filling rope is also arranged at the opening of the optical fiber groove outside the tight-fitting optical fiber.

[0009] Furthermore, a convex strip matching the optical fiber groove is provided on the inner wall of the outer sheath at the position of the optical fiber groove.

[0010] Furthermore, the outer sheath is a polyolefin polymer material sheath.

[0011] The composite cable of the utility model adopts an optical unit and an electrical unit arranged side by side to form a flat structure. The two units can be torn apart through a tear groove and used separately. The utility model is characterized in that the optical unit adopts a structure in which an outer sheath tightly wraps a central reinforcement member, and the optical fiber is embedded in the groove structure of the central reinforcement member. This unique structure not only effectively reduces the size of the optical unit by 50%, but also makes almost all the lateral pressure applied to the central reinforcement member of the strong structure, and the optical fiber is almost not subject to the lateral pressure, which greatly improves the lateral pressure resistance and tensile strength of the optical unit, and at the same time improves the rigidity of the optical cable, reduces the sag and cable change of the optical cable access and laying, and further improves the laying strength of the optoelectronic composite cable.

[0012] When the composite cable of the utility model is laid horizontally, due to its structural characteristics, the electric unit falls downward by its own weight, allowing the optical unit to face upward, especially when the optical fiber groove is at the outermost side of the central reinforcement member away from the electric unit. At this time, the optical fiber groove is at the uppermost end of the composite cable, the cable change and the fiber change are minimal, and the optical cable forms a downward arc shape. The special-shaped central reinforcement member is on the outer circle of the arc, and the tight sleeve fiber is on the inner circle of the arc. The central reinforcement member is stressed first, which provides the best protection for the optical fiber and greatly improves the tensile performance of the optical cable.

[0013] When the filling rope is arranged outside the optical fiber slot, the optical fiber is further protected, so that the opening direction of the optical fiber slot is also effectively protected, and the filling rope also realizes the easy stripping function of the optical cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the enhanced lightweight access photoelectric composite cable of the utility model.

[0015] Figure 2 Schematic diagram of the new enhanced lightweight access optoelectronic composite cable in working condition.

[0016] In the figure:

[0017] 1. Central reinforcement 101, optical fiber slot

[0018] 2. Tight-buffered optical fiber 3. Electrical unit

[0019] 4. Filling rope 5. Outer sheath

[0020] 6. Tear groove DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] An enhanced light access optical composite cable includes an outer sheath 5, an optical unit and an electrical unit 3 are arranged side by side in the outer sheath 5, the electrical unit 3 is a copper conductor, a pair of tear grooves 6 are arranged between the optical unit and the electrical unit 3, the optical unit includes a central reinforcement member 1, the outer sheath 5 is directly and tightly wrapped around the periphery of the central reinforcement member 5, an optical fiber groove 101 extending in the axial direction is arranged on the outer peripheral surface of the central reinforcement member 1, and the optical fiber groove 101 is arranged on the outermost side of the central reinforcement member 1 away from the electrical unit 3. Sometimes, due to special requirements of design or engineering, the optical fiber groove 101 may also be slightly adjusted in angle.

[0023] A tight-sleeved optical fiber 2 is matched and embedded in the optical fiber groove 101 .

[0024] In order to better protect the tight-fitting optical fiber 2 in the optical fiber groove 101 , a filling rope 4 is further provided at the opening of the optical fiber groove 101 outside the tight-fitting optical fiber 2 .

[0025] The outer sheath 5 is a polyolefin polymer sheath. Because the outer sheath 5 is squeezed around the outer periphery of the composite cable in the final process, generally, a convex strip matching the optical fiber groove 101 is formed on the inner wall of the outer sheath 5 at the position of the optical fiber groove 101, which can also play a certain role in stabilizing the cable core.

[0026] The rigidity of the special-shaped central reinforcement member 2 in the optical unit and the deadweight of the copper conductor of the electrical unit 3 make the optical cable lay horizontally with the electrical unit 3 facing downward and the optical unit facing upward, with a slight downward arc as shown in the figure. Figure 2 This feature makes it easier to find the construction window during the construction and laying of the optical unit, simplifying the difficulty of access and laying.

[0027] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. An enhanced lightweight access optical-electric composite cable, comprising an outer sheath, an optical unit and an electrical unit arranged side by side in the outer sheath, a tear groove being arranged between the optical unit and the electrical unit in the outer sheath, the optical unit comprising a central reinforcement member, characterized in that: The outer sheath is directly and tightly wrapped around the periphery of the central reinforcement member. An optical fiber groove extending along the axial direction is provided on the outer peripheral surface of the central reinforcement member. A tight-fitting optical fiber is matched and embedded in the optical fiber groove.

2. The composite cable according to claim 1, characterized in that: There is only one optical fiber groove, which is arranged at the outermost side of the central strength member away from the electrical unit.

3. The composite cable according to claim 1 or 2, characterized in that: A filling rope is also arranged at the opening of the optical fiber groove outside the tight-fitting optical fiber.

4. The composite cable according to claim 3, characterized in that: The inner wall of the outer sheath is provided with a convex strip matching the optical fiber groove at the position of the optical fiber groove.

5. The composite cable according to claim 4, characterized in that: The outer sheath is a polyolefin polymer material sheath.

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