Air-blowing optical cable with tracking function

Abstract

The utility model discloses an air-blowing optical cable with a tracking function, which comprises a PE outer sheath, a steel wire reinforcing member is arranged in the center of the inner part of the PE outer sheath, the cross section of the steel wire reinforcing member is circular, and a plurality of loose tubes are arranged between the outer side of the steel wire reinforcing member and the inner side of the PE outer sheath. And a plurality of bare optical fibers are laid in each loose tube. According to the utility model, the direction and the burial depth of the air-blowing optical cable can be tracked and positioned through the steel wire reinforcing member of the air-blowing optical cable, which can be detected by the pipeline detector, and the air-blowing optical cable can also play a role of tracking a line in the absence of a bundling pipe or an HDPE (High-Density Polyethylene) pipe of the tracking line. Compared with a traditional optical cable, the air-blowing optical cable has the advantages that the weight is light, the cable diameter is small, the cost can be greatly reduced, and meanwhile, the strength and the water blocking performance are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air-blown optical cables, in particular to an air-blown optical cable with a self-tracking function. Background Art

[0002] Air-blown optical cable is a technology that uses compressed gas (usually air) to pass optical cables or electrical cables through the inside of a pipe. This technology is mainly used for optical fiber wiring or cable wiring, especially in places where manual laying is difficult, such as long-distance underground pipes. Air-blown optical cable has the advantages of efficient cable laying, reduced damage, long-distance cable laying, reduced labor intensity, and strong scalability. Therefore, it is widely used in the telecommunications industry and other fields that require long-distance cable laying, especially in the construction of optical fiber networks.

[0003] The air-blown optical cable was first invented by the Dutch NKF Cable Company. It has been widely used in the international market because it greatly improves the utilization efficiency of the pipe holes. Compared with the traditional stranded optical cable, the material consumption and processing cost of the micro-cable of the same number of cores of the air-blown optical cable are greatly reduced. However, if the air-blown optical cable is in the pipeline and there is no tracking line in the pipeline, the direction and burial depth of the air-blown optical cable itself cannot be detected, which is very inconvenient for subsequent maintenance. Therefore, in view of the above problems, the utility model provides an air-blown optical cable with a self-tracking function, which is of great significance. Utility Model Content

[0004] The utility model provides an air-blown optical cable with a built-in tracking function. The direction and burial depth of the air-blown optical cable are tracked and located by using the steel wire reinforcement of the air-blown optical cable which can be detected by a pipeline detector. In the absence of a cluster tube or HDPE tube with a tracking line, the air-blown optical cable can also serve as a tracking line at the same time, so that the direction and burial depth of the air-blown optical cable can be detected in the absence of a tracking line. Compared with traditional optical cables, the utility model has a light weight and a small cable diameter, which can greatly reduce the cost, and also effectively improves the strength and water-blocking performance, thereby solving the problems in the background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an air-blown optical cable with a self-tracking function, comprising a PE outer sheath, a steel wire reinforcement member is arranged at the inner center of the PE outer sheath, the cross-section of the steel wire reinforcement member is circular, and a plurality of loose tubes are arranged between the outer side of the steel wire reinforcement member and the inner side of the PE outer sheath, and a plurality of bare optical fibers are laid in each of the loose tubes.

[0007] Furthermore, the loose tubes are distributed in an equidistant annular pattern along the circumferential direction of the steel wire reinforcement.

[0008] Furthermore, the number of bare optical fibers in each loose tube is at most 12, and the bare optical fibers are extruded in each loose tube in a ring-shaped distribution.

[0009] Furthermore, each of the loose tubes is filled with grease.

[0010] Furthermore, a water-blocking yarn is arranged around the outer wall of the steel wire reinforcement, and a water-blocking tape is arranged around the outer wall of the loose sleeve.

[0011] Furthermore, an open cable is laid between the PE outer sheath and the steel wire reinforcement.

[0012] Furthermore, a color stripe is provided on the surface of the PE outer sheath.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) When the air-blown optical cable with a self-tracking function in the utility model is used, the direction and burial depth of the air-blown optical cable are tracked and located by the steel wire reinforcement of the air-blown optical cable which can be detected by the pipeline detector. In the case of a cluster tube or HDPE tube without a tracking line, the air-blown optical cable can also serve as a tracking line, so that the direction and burial depth of the air-blown optical cable can be detected even in the absence of a tracking line;

[0015] (2) When used, the air-blown optical cable with a self-tracking function in the utility model is lighter and has a smaller cable diameter than traditional optical cables, which can greatly reduce costs while also effectively improving strength and water-blocking performance.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The utility model is a schematic diagram of the structure of an air-blown optical cable with a self-tracking function.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. PE outer sheath; 2. Steel wire reinforcement; 3. Loose tube; 4. Bare optical fiber; 5. Grease; 6. Water-blocking yarn; 7. Open cable; 8. Color strip; 9. Water-blocking tape. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end portion", "both ends", "both sides", "front", "one end face", "the other end face", etc. indicating the orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0023] Please refer to Figure 1 As shown, a pneumatic blowing optical cable with a built-in tracking function of the present utility model includes a PE outer sheath 1. The PE outer sheath 1 is used to protect the internal optical cable from mechanical damage and the influence of environmental factors (such as moisture and chemical substances). A steel wire reinforcement 2 is arranged at the center inside the PE outer sheath 1. The cross-section of the steel wire reinforcement 2 is circular, and a plurality of loose tubes 3 are arranged between the outer side of the steel wire reinforcement 2 and the inner side of the PE outer sheath 1. A plurality of bare optical fibers 4 are laid in each loose tube 3.

[0024] Among them, the loose tubes 3 are evenly distributed in an annular manner along the circumferential direction of the steel wire reinforcement 2. Through the good flexibility and wear resistance of the loose tubes 3, the direct influence of external pressure on the bare optical fibers 4 can be reduced.

[0025] Among them, the maximum number of bare optical fibers 4 in each loose tube 3 is 12. The bare optical fibers 4 are extruded in each loose tube 3 in an annular distribution manner. The bare optical fibers 4 are used to transmit optical signals.

[0026] Among them, each loose tube 3 is filled with an ointment 5, which can play a water-blocking role to protect the bare optical fibers 4 in the loose tube 3 from moisture and mechanical damage.

[0027] Among them, a water-blocking yarn 6 is arranged around the outer wall of the steel wire reinforcement. The water-blocking yarn 6 can be wrapped around the outer side of the steel wire reinforcement 2 to effectively improve the water-blocking performance of the steel wire reinforcement 2, thereby preventing moisture from entering the inside of the steel wire reinforcement 2. A water-blocking tape 9 is arranged around the outer wall of the loose tube 3. The water-blocking yarn 6 can be wrapped around the outer side of the loose tube 3 to effectively improve the water-blocking performance of the loose tube 3, thereby preventing moisture from entering the inside of the loose tube 3.

[0028] Among them, a cable opening rope 7 is laid between the PE outer sheath 1 and the steel wire reinforcement 2. The cable opening rope 7 has strong toughness and can be used to conveniently peel off the PE outer sheath 1.

[0029] Among them, a color strip 8 is arranged on the surface of the PE outer sheath 1, and the blowing optical cable can be conveniently identified during laying through the color strip 8.

[0030] The circuits, electronic components and chip modules involved in the present utility model are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve improvements to software and methods either.

[0031] The standard parts used in the application documents can all be purchased from the market. All the components in the application documents can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The electrical components appearing in this article are all electrically connected to the external main controller and the 220V mains power supply, and the main controller can be a conventional known device such as the LED lamp body for control.

[0032] The working principle of the present utility model is as follows:

[0033] When the present utility model is in use, an electromagnetic signal can be generated by a transmitter and transmitted to the steel wire reinforcement 2 of the blowing optical cable through different transmission connection methods. After the steel wire reinforcement 2 senses the electromagnetic wave, an induced current will be generated on the surface. These induced currents propagate along the steel wire reinforcement 2 and radiate electromagnetic waves to the ground during the propagation process. When the receiver detects on the ground, it can utilize the principle that a changing magnetic field generates an induced current in a metal conductor (the steel wire reinforcement 2 belongs to a metal), and judge the position and direction of the underground blowing optical cable through the change in the strength of the received signal. Thus, in the case of a cluster pipe or HDPE pipe without a tracing line, the blowing optical cable itself can play the role of a tracing line, enabling the direction and burial depth of the blowing optical cable to be detected even without a tracing line. At the same time, it can also reduce costs and improve the strength of the blowing optical cable.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not elaborate all the details, nor limit the present utility model to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An air-blown optical cable with a self-tracking function, characterized in that: It comprises a PE outer sheath, wherein a steel wire reinforcement is arranged at the inner center of the PE outer sheath, the cross section of the steel wire reinforcement is circular, and a plurality of loose tubes are arranged between the outer side of the steel wire reinforcement and the inner side of the PE outer sheath, and a plurality of bare optical fibers are laid in each of the loose tubes.

2. The air-blown optical cable with self-tracking function according to claim 1, characterized in that: The loose tubes are distributed in an equidistant annular pattern along the circumferential direction of the steel wire reinforcement.

3. The air-blown optical cable with self-tracking function according to claim 1, characterized in that: The number of bare optical fibers in each loose tube is at most 12, and the bare optical fibers are extruded in each loose tube in a ring-shaped distribution.

4. The air-blown optical cable with self-tracking function according to claim 1, characterized in that: Each of the loose tubes is filled with grease.

5. The air-blown optical cable with self-tracking function according to claim 1, characterized in that: A water-blocking yarn is arranged around the outer wall of the steel wire reinforcement, and a water-blocking tape is arranged around the outer wall of the loose sleeve.

6. The air-blown optical cable with self-tracking function according to claim 1, characterized in that: An open cable is laid between the PE outer sheath and the steel wire reinforcement.

7. The air-blown optical cable with self-tracking function according to claim 1, characterized in that: A color stripe is arranged on the surface of the PE outer sheath.

Images