High-strength self-supporting rubber-covered wire optical cable

Abstract

The high-strength self-supporting rubber-covered wire optical cable comprises a polyethylene sheath and a central reinforcing core, the surface of the polyethylene sheath is provided with a reinforcing groove, a reinforcing sleeve is inserted into the reinforcing groove, the surface of the central reinforcing core is fixedly connected with a reinforcing column, and the surface of the reinforcing column is fixedly connected with a reinforcing ring. A steel stranded wire is inserted into the inner side of the reinforcing ring, the surface of the polyethylene sheath is fixedly connected with a first insertion plate, and the surface of the first insertion plate is sleeved with a first insertion groove. According to the high-strength self-supporting rubber-covered wire optical cable, the reinforcing column structures distributed at equal intervals are fixedly connected to the surface of the reinforcing core on the inner side of the optical cable, so that the top of the reinforcing column structures is fixedly connected with the reinforcing ring arranged on the outer side of the steel stranded wire, the groove is formed in the surface of the polyethylene sheath, and the reinforcing sleeve is fixedly connected to the inner side of the groove; therefore, through the arrangement of a dual-reinforcement structure, the use strength of the self-supporting rubber-insulated wire optical cable is improved to a greater extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical cables, and particularly relates to a high-strength self-supporting drop cable. Background Technique

[0002] The self-supporting drop cable is a kind of optical cable with self-bearing characteristics, suitable for overhead transmission without additional support structures. It usually consists of multiple optical fiber cores, strengthening elements and an outer sheath, and is designed to withstand a certain amount of its own weight and the influence of environmental factors such as wind, rain, and snow. This kind of optical cable is different from ordinary optical cables in structure. It contains one to four silica-based optical fibers with coating layers. The optical fibers in the same batch of products should be made of the same design, the same materials and processes. The optical fibers should be placed in the center of the optical cable. The self-supporting drop cable is suitable for being introduced into the room in an overhead or wall-mounted manner. The standard for selecting the sheath material requires avoiding excessive bending to avoid breakage and affecting the service life. At the same time, it needs to be firmly tied during the installation process to avoid being affected by external dynamic stress and affecting the service life.

[0003] At present, the following problems exist in the actual use of the self-supporting drop cable on the market:

[0004] 1. The traditional self-supporting drop cable usually only consists of a connection structure composed of a single central strengthening core and a polyethylene sheath. Under long-term use or under greater pressure, its connection structure is relatively easy to break, and its use strength is low.

[0005] 2. The polyethylene sheath of the traditional self-supporting drop cable is usually directly exposed to the air. Under long-term use, the polyethylene sheath may be chemically corroded, thus affecting the use, and greatly reducing the service life of the self-supporting drop cable. Content of the Utility Model

[0006] The purpose of the utility model is to provide a high-strength self-supporting drop cable to solve the technical problems proposed in the background technique.

[0007] To achieve the above purpose, the specific technical solution of the utility model is as follows: A high-strength self-supporting drop cable includes a polyethylene sheath and a central strengthening core. Preferably, strengthening grooves are opened on the surface of the polyethylene sheath, and strengthening sleeves are inserted into the strengthening grooves. Strengthening columns are fixedly connected to the surface of the central strengthening core, strengthening rings are fixedly connected to the surface of the strengthening columns, and steel stranded wires are inserted into the inner sides of the strengthening rings.

[0008] Preferably, a first plug board is fixedly connected to the surface of the ethylene sheath, a first slot is sleeved on the surface of the first plug board, a connection block is fixedly connected to the surface of the first slot, and a protective shell is connected to the connection block through a rotating shaft.

[0009] Preferably, a reinforcing ring is inserted inside the polyethylene sheath, a plastic-coated aluminum tape is inserted inside the polyethylene sheath, a cable core filler is provided inside the plastic-coated aluminum tape, and a central reinforcing core is inserted inside the cable core filler.

[0010] Preferably, a loose tube is inserted inside the cable core filler, a tube filler is provided inside the loose tube, and an optical fiber is inserted inside the tube filler.

[0011] Preferably, a card slot is formed on the surface of the first plug board, an elastic clamping post is inserted inside the card slot, a connecting block is fixedly connected to the surface of the elastic clamping post, and the surface of the connecting block is threadedly connected to the first plug board.

[0012] Preferably, a second slot is formed on the surface of the protective shell, a second plug board is fixedly connected to the surface of the protective shell, a fixing plate is fixedly connected to the surface of the protective shell, and a fixing hole is formed on the surface of the fixing plate.

[0013] The high-strength self-supporting drop cable of the present utility model has the following advantages:

[0014] 1. For this high-strength self-supporting drop cable, by providing a reinforcing groove on the surface of the polyethylene sheath, a reinforcing sleeve is inserted into the reinforcing groove, a reinforcing column is fixedly connected to the surface of the central reinforcing core, a reinforcing ring is fixedly connected to the surface of the reinforcing column, and a steel stranded wire is inserted inside the reinforcing ring. In this way, by fixedly connecting a reinforcing column structure in an equidistant distribution form on the surface of the reinforcing core inside the cable, a reinforcing ring provided outside the steel stranded wire is fixedly connected to its top, and by providing a groove on the surface of the polyethylene sheath and fixedly connecting a reinforcing sleeve inside the groove, through the provided double reinforcing structure, the service strength of this self-supporting drop cable is increased to a large extent;

[0015] 2. For this high-strength self-supporting drop cable, by fixedly connecting a first plug board to the surface of the ethylene sheath, a first slot is sleeved on the surface of the first plug board, a connecting block is fixedly connected to the surface of the first slot, and the connecting block is connected to the protective shell through a rotating shaft. In this way, by installing a protective shell structure that is convenient to replace on the surface of the cable, during installation, the first groove formed on the surface of the connecting block is sleeved on the surface of the first plug board, then the protective shell is closed, then the second plug board is inserted into the second groove, and then the fixing plate is fixedly connected through threading. Through a protective shell structure that can be locally and conveniently replaced, the cable is isolated from the external environment to prevent chemical reactions from occurring, and the service life of the cable is increased to a large extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 Schematic diagram of the reinforcing sleeve structure of the present utility model;

[0019] Figure 3 Schematic diagram of the reinforcing column structure of the present utility model;

[0020] Figure 4 Schematic diagram of the protective shell structure of the present utility model;

[0021] Figure 5 Schematic diagram of the second groove structure of the present utility model.

[0022] Explanation of the marks in the figure: 1. Polyethylene sheath; 2. Plastic-coated aluminum tape; 3. Cable core filler; 4. Loose tube; 5. Tube filler; 6. Optical fiber; 7. Central strengthening core; 8. Reinforcing column; 9. Reinforcing ring; 10. Reinforcing sleeve; 11. Reinforcing groove; 12. Steel strand; 13. First plug board; 14. Card slot; 15. Connecting block; 16. First slot; 17. Protective shell; 18. Elastic clamping column; 19. Second plug board; 20. Second slot; 21. Fixed plate; 22. Fixed hole. Detailed implementation manners

[0023] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present utility model. Therefore, the drawings and descriptions are considered to be exemplary in nature rather than restrictive.

[0024] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present utility model.

[0025] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality of" is two or more unless otherwise specifically defined.

[0026] In the embodiments of the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present utility model. To simplify the disclosure of the embodiments of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0028] To better understand the purpose, structure, and function of the present utility model, the following further describes a high-strength self-supporting ribbon optical cable of the present utility model in detail with reference to the accompanying drawings.

[0029] As Figures 1-5 shown, a high-strength self-supporting ribbon optical cable of the present utility model includes a polyethylene sheath 1 and a central strengthening core 7. A strengthening groove 11 is provided on the surface of the polyethylene sheath 1. In this way, through the strengthening sleeve 10 structure installed outside the polyethylene sheath 1, the fracture of its connection part is prevented, and its service strength is improved to a great extent. The strengthening sleeve 10 is inserted into the strengthening groove 11. The surface of the central strengthening core 7 is fixedly connected with strengthening columns 8. The surface of the strengthening columns 8 is fixedly connected with strengthening rings 9. The inner side of the strengthening rings 9 is inserted with steel stranded wires 12. In this way, through the strengthening column 8 structure fixedly connected to the surface of the strengthening core inside the optical cable in an equidistant distribution form, the strengthening ring 9 provided outside the steel stranded wires 12 is fixedly connected to its top. And a groove is provided on the surface of the polyethylene sheath 1, and the strengthening sleeve 10 is fixedly connected inside the groove. In this way, through the double strengthening structure provided, the service strength of the self-supporting ribbon optical cable is increased to a great extent.

[0030] A first plug board 13 is fixedly connected to the surface of the polyethylene sheath 1. The first plug board 13 is sleeved with a first slot 16 on its surface. A connecting block 15 is fixedly connected to the surface of the first slot 16. The connecting block 15 is connected to the protective shell 17 through a rotating shaft. In this way, by installing a protective shell 17 structure on the surface of the optical cable that is convenient to replace, during installation, the first groove opened on the surface of the connecting block 15 is sleeved on the surface of the first plug board 13, then the protective shell 17 is closed, then the second plug board 19 is inserted into the second groove, and then the fixing plate 21 is fixed by threaded connection. In this way, through a protective shell 17 structure that can be locally replaced conveniently, the optical cable is isolated from the external environment to prevent chemical reactions from occurring, and the service life of the optical cable is increased to a large extent.

[0031] A reinforcing ring 9 is inserted into the inner side of the polyethylene sheath 1. A coated aluminum tape 2 is inserted into the inner side of the polyethylene sheath 1. A cable core filler 3 is provided inside the coated aluminum tape 2. A central strengthening core 7 is inserted into the inner side of the cable core filler 3. In this way, through the provided reinforcing ring 9 structure, it is prevented that the steel stranded wire 12 directly contacts and rubs against the polyethylene sheath 1, which may cause wear of the polyethylene sheath 1 and affect its use. The service life of the device is increased to a large extent.

[0032] A loose tube 4 is inserted into the inner side of the cable core filler 3. A tube filler 5 is provided inside the loose tube 4. An optical fiber 6 is inserted into the inner side of the tube filler 5. In this way, through the design of the strengthening member, the loose tube 4 and the tube filler 5, the mechanical strength of the optical cable is improved, enabling it to work stably in various environments, and the applicability of the device is improved to a large extent.

[0033] A card slot 14 is opened on the surface of the first plug board 13. An elastic clamping post 18 is inserted into the inner side of the card slot 14. The elastic clamping post 18 is fixedly connected to the surface of the connecting block 15. The connecting block 15 is threadedly connected to the first plug board 13 on its surface. In this way, through the provided elastic clamping post 18 structure, it can be inserted into the card slot 14 more easily, and then by tightening the screw, the connecting block 15 is prevented from sliding out, and the stability of the device is increased to a large extent.

[0034] A second slot 20 is opened on the surface of the protective shell 17. A second plug board 19 is fixedly connected to the surface of the protective shell 17. A fixing plate 21 is fixedly connected to the surface of the protective shell 17. A fixing hole 22 is opened on the surface of the fixing plate 21. In this way, by inserting the first plug board 13 into the second slot 20, the connection part of the protective shell 17 is made more sealed to a large extent, making it difficult for the optical cable to contact the air, and the sealing performance of the device is improved to a large extent.

[0035] Working principle of the high-strength self-supporting drop cable: After installing the self-supporting drop cable, a reinforcing column 8 structure distributed at equal intervals is fixedly connected to the surface of the reinforcing core inside the cable, and its top is fixedly connected to a reinforcing ring 9 provided outside the steel strand 12. A groove is opened on the surface of the polyethylene sheath 1, and a reinforcing sleeve 10 is fixedly connected inside the groove. In this way, through the double reinforcing structure provided, the use strength of the self-supporting drop cable is increased to a large extent. Moreover, the reinforcing ring 9 structure prevents the steel strand 12 from directly contacting and rubbing against the polyethylene sheath 1, which may cause wear of the polyethylene sheath 1 and affect its use, and the service life of the device is increased to a large extent. Then, the first groove opened on the surface of the connecting block 15 in the protection structure is sleeved on the surface of the first plug board 13. The elastic clamping column 18 structure provided inside it enables the elastic clamping column 18 to be inserted into the card slot 14 more easily. Then, by tightening the screw, the sliding out of the connecting block 15 is prevented, and the stability of the device is increased to a large extent. Then, the protection shell 17 is closed. Then, the second plug board 19 is inserted into the second groove, and then the fixing plate 21 is fixed by threaded connection. In this way, through a protection shell 17 structure that can be conveniently replaced locally, the cable is isolated from the external environment to prevent chemical reactions from occurring, and the service life of the cable is increased to a large extent.

[0036] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A high-strength self-supporting drop cable, comprising a polyethylene sheath (1) and a central strength member (7), characterized in that: The surface of the polyethylene sheath (1) is provided with a reinforcing groove (11), and a reinforcing sleeve (10) is inserted into the reinforcing groove (11). The surface of the central reinforcing core (7) is fixedly connected with a reinforcing column (8), and the surface of the reinforcing column (8) is fixedly connected with a reinforcing ring (9). A steel stranded wire (12) is inserted inside the reinforcing ring (9).

2. The high-strength self-supporting drop cable according to claim 1, wherein: The surface of the polyethylene sheath (1) is fixedly connected with a first plug board (13), and a first slot (16) is sleeved on the surface of the first plug board (13). A connecting block (15) is fixedly connected to the surface of the first slot (16), and the connecting block (15) is connected to the protective shell (17) through a rotating shaft.

3. The high-strength self-supporting drop cable according to claim 1, wherein: A reinforcing ring (9) is inserted inside the polyethylene sheath (1), and a plastic-coated aluminum tape (2) is inserted inside the polyethylene sheath (1). A cable core filler (3) is arranged inside the plastic-coated aluminum tape (2), and a central reinforcing core (7) is inserted inside the cable core filler (3).

4. The high-strength self-supporting drop cable according to claim 3, characterized in that: A loose tube (4) is inserted inside the cable core filler (3), a tube filler (5) is arranged inside the loose tube (4), and an optical fiber (6) is inserted inside the tube filler (5).

5. The high-strength self-supporting drop cable according to claim 2, wherein: A card slot (14) is opened on the surface of the first plug board (13), an elastic clamping column (18) is inserted inside the card slot (14), the surface of the elastic clamping column (18) is fixedly connected with the connecting block (15), and the surface of the connecting block (15) is threadedly connected with the first plug board (13).

6. The high-strength self-supporting drop cable according to claim 2, wherein: A second slot (20) is opened on the surface of the protective shell (17), a second plug board (19) is fixedly connected to the surface of the protective shell (17), a fixing plate (21) is fixedly connected to the surface of the protective shell (17), and a fixing hole (22) is opened on the surface of the fixing plate (21).

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