Full-dry type air-blowing miniature optical cable

Abstract

The utility model discloses a full-dry air-blowing miniature optical cable, which comprises a miniature optical cable body and a protection head, a plurality of grooves are axially arranged on the outer ring surface of the miniature optical cable body, and a plurality of groups of rubber strips for reducing friction with the inner wall of a pipeline are mounted on the outer ring of the miniature optical cable body. The rubber strips are distributed on the outer ring face of the miniature optical cable body in an annular structure and keep away from the groove, a connecting groove is formed in one end of the protection head, and the protection head is arranged at one end of the miniature optical cable body in a sleeving mode through the connecting groove. The miniature optical cable is simple in structure, reduces the contact area with the pipe wall through the contact between the adhesive tape and the pipe wall, can provide support for the miniature optical cable body, is easier to suspend in the center of a pipeline for laying the optical cable in the air-blowing process, can increase the contact area with wind through the adhesive tape, improves the air-blowing performance, and improves the service life of the miniature optical cable. The head can be protected through the protection head, and the head of the miniature optical cable body can pass through the bent part of the pipeline more efficiently through the first flow guide part.

Description

Technical Field

[0001] This utility model relates to the field of optical cable technology, specifically to a fully dry air-blown miniature optical cable. Background Technology

[0002] All-dry air-blown micro optical cable is a communication optical cable designed for efficient laying. It adopts an oil-free (dry) structure and miniaturized design, and is laid over long distances in microtubes by compressed air propulsion (air-blowing method). Its core features are environmental protection, lightweight, high fiber density, and ease of construction, and it is widely used in FTTH (Fiber to the Home), metropolitan area networks, data centers, and other scenarios.

[0003] However, the current optical cables have a simple structure, and the friction between them and the ducts is relatively large, which affects the laying speed. Furthermore, since the forward end of the optical cable is not smooth, it is prone to greater friction when passing through bends, which further affects the cabling efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a fully dry air-blown miniature optical cable, which reduces friction with the pipe through the rubber strip and groove, and increases the smoothness of the head through the protective head, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a fully dry air-blown micro optical cable, including a micro optical cable body and a protective head. The outer ring surface of the micro optical cable body is provided with multiple grooves axially, and the multiple grooves are evenly distributed in a ring structure. Multiple sets of rubber strips to reduce friction with the inner wall of the pipe are installed on the outer ring of the micro optical cable body. The rubber strips are all distributed in a ring structure on the outer ring surface of the micro optical cable body, and the rubber strips are set to avoid the grooves. One end of the protective head is provided with a connecting groove. The protective head is sleeved on one end of the micro optical cable body through the connecting groove. The other end of the protective head forms a first guide part with a hemispherical structure.

[0006] As a preferred technical solution, the protective head has a circular cross-section. The outer ring of the protective head has multiple grooves, and the inner wall of each groove has a screw hole that communicates with the connecting groove. Each screw hole is threaded with a screw, one end of which extends into the connecting groove and abuts against the outer wall of the micro optical cable body. The ends of the screws are hidden in the grooves.

[0007] As a preferred technical solution, the inner ring surface of the connecting groove protrudes from the groove to form a convex part, and the convex part is inserted into the groove.

[0008] As a preferred technical solution, the protective head is made of plastic material.

[0009] As a preferred technical solution, the interior of the micro optical cable body is equipped with water-blocking yarn.

[0010] As a preferred technical solution, the material of the adhesive strip is matched with the material of the outer protective layer on the micro-optical cable body.

[0011] As a preferred technical solution, the adhesive strips are all cylindrical in shape, and the head of each adhesive strip forms a second guide section with a hemispherical structure.

[0012] The beneficial effects of this utility model are: the utility model has a simple structure. After entering the pipe, the rubber strip contacts the pipe wall, reducing the contact area with the pipe wall and providing support for the micro optical cable body. During the air blowing process, the micro optical cable body is more easily suspended in the center of the pipe used for laying optical cables. The rubber strip can increase the contact area with the wind and improve the air blowing performance. The protective head can protect the head, and the first guide part can make the head of the micro optical cable body pass through the bends of the pipe more efficiently. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the protective head of this utility model;

[0017] Figure 4 This invention relates to the protective head structure after removing any screws.

[0018] The components include: 1. Miniature optical cable body; 2. Groove; 3. Adhesive strip; 4. Protective head; 5. Screw; 6. Protrusion; 7. Groove; 8. Screw hole. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a fully dry air-blown miniature optical cable, including a miniature optical cable body 1 and a protective head 4. The outer ring surface of the miniature optical cable body 1 is provided with multiple grooves 2 axially, which are evenly distributed in a ring structure. Multiple sets of rubber strips 3 are installed on the outer ring of the miniature optical cable body 1 to reduce friction with the inner wall of the pipe. The rubber strips 3 are all distributed in a ring structure on the outer ring surface of the miniature optical cable body 1, and the rubber strips 3 are set to avoid the grooves 2. One end of the protective head 4 is provided with a connecting groove. The protective head 4 is sleeved on one end of the miniature optical cable body 1 through the connecting groove. The other end of the protective head 4 forms a first flow guide part with a hemispherical structure.

[0023] In this embodiment, the protective head 4 has a circular cross-section. The outer ring surface of the protective head 4 is provided with multiple grooves 7. The inner wall surface of each groove 7 is provided with screw holes that communicate with the connecting groove. Each screw hole is threaded with a screw 5. One end of each screw 5 extends into the connecting groove and abuts against the outer wall surface of the micro optical cable body 1. The ends of the screws 5 are hidden in the grooves 7.

[0024] In this embodiment, the inner ring surface of the connecting groove protrudes to form a protrusion 6 at the location opposite to the groove 2, and the protrusion 6 is inserted into the groove 2. The protrusion increases the contact area with the groove, and glue can be applied to the inner ring surface of the connecting groove to increase the connection between the protective head and the micro optical cable body, preventing it from falling off during the air blowing process and increasing its stability.

[0025] As the protective head is installed on the miniature optical cable body, to prevent it from loosening before the glue dries, the screw can be rotated so that the screw moves inward along the screw hole and comes into contact with the miniature optical cable body, thus achieving a pre-fixing effect.

[0026] In this embodiment, the protective head 4 is made of plastic material, which reduces the weight. When air blowing is performed, since the protective head is located at the head of the micro optical cable body, the end face of the protective head can increase the windward area, which can push the protective head and the micro optical cable body forward more quickly. When passing through the bend of the pipe, the first guide part can make the protective head and the micro optical cable body pass through the bend smoothly and quickly, which increases the efficiency of wiring.

[0027] In this embodiment, the interior of the micro optical cable body 1 is provided with water-blocking yarn. By using water-blocking yarn to replace the fiber paste inside the current optical cable, the all-dry optical cable completely eliminates the use of oil paste and replaces it with dry water-blocking materials (such as super absorbent water-blocking yarn and water-blocking powder). This avoids the trouble of cleaning oil paste during construction, which can not only waterproof the cable but also reduce its weight and allow for better air blowing.

[0028] In this embodiment, the material of the adhesive strip 3 is matched with the material of the outer protective layer on the micro optical cable body 1, so that the adhesive strip can be integrally formed with the outer protective layer.

[0029] In this embodiment, the adhesive strips 3 are all cylindrical in shape, and the head of each adhesive strip 3 forms a second guide portion with a hemispherical structure. The cylindrical structure allows the adhesive strip to have less contact with the pipe wall, reducing friction. The second guide portion reduces the friction between the head of the adhesive strip and the pipe wall.

[0030] After entering the pipe, the rubber strip contacts the pipe wall, reducing the contact area with the pipe wall and providing support for the micro optical cable body. During the air blowing process, the micro optical cable body is more likely to be suspended in the center of the pipe used for laying optical cables, and the rubber strip can increase the contact area with the wind, improving the air blowing performance.

[0031] The grooves increase the contact area with the airflow, which further propels the micro-optical cable forward.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A fully dry air-blown miniature optical cable, characterized in that: The device includes a miniature optical cable body (1) and a protective head (4). The outer ring surface of the miniature optical cable body (1) is provided with multiple grooves (2) in an axial direction. The multiple grooves (2) are evenly distributed in a ring structure. Multiple sets of rubber strips (3) are installed on the outer ring of the miniature optical cable body (1) to reduce friction with the inner wall of the pipe. The rubber strips (3) are all distributed in a ring structure on the outer ring surface of the miniature optical cable body (1) and the rubber strips (3) are set to avoid the grooves (2). One end of the protective head (4) is provided with a connecting groove. The protective head (4) is sleeved on one end of the miniature optical cable body (1) through the connecting groove. The other end of the protective head (4) forms a first guide part with a hemispherical structure.

2. The all-dry air-blown miniature optical cable according to claim 1, characterized in that: The protective head (4) has a circular cross-section. Multiple grooves (7) are provided on the outer ring surface of the protective head (4). Each groove (7) has a screw hole that communicates with the connecting groove. Each screw hole is threaded with a screw (5). One end of each screw (5) extends into the connecting groove and abuts against the outer wall of the micro optical cable body (1). The ends of the screws (5) are hidden in the grooves (7).

3. The all-dry air-blown miniature optical cable according to claim 1, characterized in that: The inner ring surface of the connecting groove protrudes from the groove (2) to form a protrusion (6), and the protrusion (6) is inserted into the groove (2).

4. The all-dry air-blown miniature optical cable according to claim 1, characterized in that: The protective head (4) is made of plastic material.

5. The all-dry air-blown miniature optical cable according to claim 1, characterized in that: The interior of the miniature optical cable body (1) is equipped with water-blocking yarn.

6. The all-dry air-blown miniature optical cable according to claim 1, characterized in that: The material of the adhesive strip (3) is matched with the material of the outer protective layer on the micro-optical cable body (1).

7. The all-dry air-blown miniature optical cable according to claim 1, characterized in that: All the rubber strips (3) are cylindrical in shape, and the head of each rubber strip (3) forms a second guide section with a hemispherical structure.

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