Butterfly-shaped optical cable with central reinforcing member

Abstract

The butterfly-shaped optical cable comprises a halogen-free sheath, an anti-pressing sleeve is attached to the inner side of the halogen-free sheath, a flexible connecting sleeve is inserted into the inner side of the anti-pressing sleeve, the surface of the anti-pressing sleeve is fixedly connected with a first check ring, the surface of the flexible connecting sleeve is fixedly connected with a second check ring, the surface of the first check ring is provided with a sliding groove, and the surface of the second check ring is provided with a central reinforcing member. Reinforcing columns are slidably connected to the inner sides of the sliding grooves, second check rings are fixedly connected to the surfaces of the reinforcing columns, and a water-blocking tape is arranged on the outer side of the halogen-free sheath. According to the butterfly-shaped optical cable with the central reinforcing piece, through the arrangement of the telescopic anti-pressing sleeve structure, the anti-pressing sleeve can comprehensively protect the optical fiber structure under the normal condition, when bending is needed, the flexible connecting sleeve can slide and exist on the inner side of the anti-pressing sleeve, the stress is enabled to be small to a large extent in the bending process, and the optical fiber structure is not damaged. And the reinforcing columns are fixedly connected to the surface of the flexible sheath, so that the compressive strength is improved, and the use strength of the device is improved to a greater extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical cables, and in particular relates to a butterfly-shaped optical cable with a central reinforcement member. Background Art

[0002] Butterfly optical cable is a new type of user access optical cable. The optical cable structure and various technical parameters are rationally designed according to different application environments and laying conditions. It combines the characteristics of indoor soft optical cable and self-supporting optical cable. It is produced using special equipment and imported precision molds. It is the best alternative product for FTTX network solutions and plays a unique role in the establishment of smart buildings, digital communities, campus networks, local area networks and other networks.

[0003] The butterfly optical cables currently on the market have the following problems in actual use:

[0004] 1. When the traditional butterfly optical cable needs to be adjusted and bent, the outer side of the optical fiber is in a solid state. When the bend is too large, it may cause excessive stress, which may cause the optical fiber to suffer greater stress damage. The use strength of this device is low;

[0005] 2. When the traditional butterfly optical cable encounters a fire source or is in humid air, its surface sheath is in direct contact with the moisture in the air, which may corrode over a long period of time. It may also be damaged when encountering a strong fire source, greatly reducing its service life. Utility Model Content

[0006] The purpose of the utility model is to provide a butterfly-shaped optical cable with a central reinforcement member to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the specific technical solution of the present invention is as follows: a butterfly-shaped optical cable with a central reinforcement, comprising a halogen-free sheath. Preferably, the inner side of the halogen-free sheath is fitted with a pressure-proof sleeve, the inner side of the pressure-proof sleeve is inserted into a flexible connecting sleeve, the surface of the pressure-proof sleeve is fixedly connected to the first retaining ring, the surface of the flexible connecting sleeve is fixedly connected to the second retaining ring, a sliding groove is provided on the surface of the first retaining ring, the inner side of the sliding groove is connected to a reinforcement column by sliding, and the surface of the reinforcement column is fixedly connected to the second retaining ring.

[0008] Preferably, a water-blocking tape is provided on the outside of the halogen-free sheath, the inside of the water-blocking tape is fixedly connected to the fire extinguishing bag, the surface of the water-blocking tape is bonded to a plastic-coated aluminum tape, and the surface of the plastic-coated aluminum tape is fixedly connected to the protective sheath.

[0009] Preferably, a protective sleeve is provided on the inner side of the flexible connecting sleeve, an optical fiber is provided on the inner side of the protective sleeve, and the surface of the optical fiber is filled with a cable core filler.

[0010] Preferably, the surface of the halogen-free sheath is provided with perforations, the inner sides of the perforations are inserted with first reinforcement members, and the first reinforcement members are symmetrically distributed.

[0011] Preferably, the outer side of the halogen-free sheath is fixedly connected to the second reinforcement member, and the surface of the second reinforcement member is fixedly connected to the water-blocking tape.

[0012] Preferably, the surface of the protective sleeve is fixedly connected to the self-supporting sleeve, and the surface of the self-supporting sleeve is fixedly connected to the reinforcement block.

[0013] The butterfly-shaped optical cable with a central reinforcement member of the utility model has the following advantages:

[0014] 1. A butterfly optical cable with a central reinforcement member, wherein the anti-pressure sleeve is fitted on the inner side of a halogen-free sheath, a flexible connecting sleeve is inserted into the inner side of the anti-pressure sleeve, the surface of the anti-pressure sleeve is fixedly connected to the first retaining ring, the surface of the flexible connecting sleeve is fixedly connected to the second retaining ring, a sliding groove is provided on the surface of the first retaining ring, the inner side of the sliding groove is connected to the reinforcement column by sliding, and the surface of the reinforcement column is fixedly connected to the second retaining ring. In this way, through the elastic anti-pressure sleeve structure, the lower anti-pressure sleeve is used to more comprehensively protect the optical fiber structure under normal circumstances. When bending is required, the flexible connecting sleeve can slide and exist inside the anti-pressure sleeve, which greatly reduces the stress during bending, and the reinforcement column is fixedly connected to the surface of the flexible sheath, thereby increasing the compressive strength and greatly increasing the use strength of the device.

[0015] 2. The butterfly optical cable with a central reinforcement is provided with a water-blocking tape on the outside of the halogen-free sheath, a fire-extinguishing bag is fixedly connected to the inside of the water-blocking tape, a plastic-coated aluminum tape is bonded to the surface of the water-blocking tape, and a protective sleeve is fixedly connected to the surface of the plastic-coated aluminum tape. In this way, a protective sleeve structure is provided on the outside of the halogen-free sheath, a water-blocking tape is provided on the outside of the halogen-free sheath to prevent moisture from entering, and a fire-extinguishing bag is fixedly connected to the inside of the water-blocking tape. When the fire source is about to burn to the halogen-free sheath, it explodes to extinguish the fire, and the protective sleeve is provided on the outside of the water-blocking tape to prevent damage to the halogen-free sheath to a large extent, thereby greatly increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the halogen-free sheath structure of the utility model;

[0019] Figure 3This is a schematic structural diagram of the pressure-proof sleeve of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fire extinguishing bag of the present utility model.

[0021] Explanation of the marks in the figure: 1. Halogen-free sheath; 2. Optical fiber; 3. Protective sleeve; 4. Anti-pressure sleeve; 5. Flexible connecting sleeve; 6. Slide groove; 7. First retaining ring; 8. Second retaining ring; 9. Reinforcement column; 10. Fire extinguishing bag; 11. Protective sleeve; 12. Water-blocking tape; 13. Plastic-coated aluminum tape; 14. First reinforcement member; 15. Second reinforcement member; 16. Perforation; 17. Self-supporting sleeve; 18. Reinforcement block; 19. Cable core filler. DETAILED DESCRIPTION

[0022] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention 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 therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0025] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a butterfly-shaped optical cable with a central reinforcement member of the present invention in conjunction with the accompanying drawings.

[0028] like Figure 1-4 The cam 4 is fixed on the inner side of the cable 2 and the second retaining ring 8 is fixed on the surface of the cable 2. The cam 4 is fixed on the inner side of the cable 2 and the second retaining ring 8 is fixed on the surface of the cable 2.

[0029] A water-blocking tape 12 is provided on the outside of the halogen-free sheath 1, and a fire-extinguishing bag 10 is fixedly connected to the inside of the water-blocking tape 12. A plastic-coated aluminum tape 13 is bonded to the surface of the water-blocking tape 12, and a protective cover 11 is fixedly connected to the surface of the plastic-coated aluminum tape 13. In this way, a protective cover 11 structure is provided on the outside of the halogen-free sheath 1, and a water-blocking tape 12 is provided on the outside of the halogen-free sheath 1 to prevent moisture from entering. The fire-extinguishing bag 10 is fixedly connected to the inside of the water-blocking tape 12, and when the fire source is about to burn to the halogen-free sheath 1, it explodes to extinguish the fire. In addition, a protective cover 11 is provided on the outside of the water-blocking tape 12 to prevent damage to it by external force to a great extent, thereby greatly increasing the service life of the device.

[0030] A protective sleeve 3 is provided inside the flexible connecting sleeve 5, an optical fiber 2 is provided inside the protective sleeve 3, and the surface of the optical fiber 2 is filled with cable core filler 19. In this way, the loose sleeve protects the optical fiber 2 from internal stress and external side pressure, while providing good environmental adaptability.

[0031] The surface of the halogen-free sheath 1 is provided with a perforation 16, and the first reinforcement member 14 is inserted into the inner side of the perforation 16. The first reinforcement members 14 are symmetrically distributed. In this way, the tensile strength of the optical cable during construction is improved by the reinforcement members, and the cable core is effectively protected against all external mechanical, physical and chemical effects, thereby ensuring that the optical cable has a sufficient service life.

[0032] The outer side of the halogen-free sheath 1 is fixedly connected to the second reinforcement member 15, and the surface of the second reinforcement member 15 is fixedly connected to the water-blocking tape 12. In this way, the second reinforcement member 15 makes the connection between the halogen-free sheath 1 and the water-blocking tape 12 more stable, thereby greatly improving the stability of the device.

[0033] The surface of the protective cover 11 is fixedly connected to the self-supporting cover 17, and the surface of the self-supporting cover 17 is fixedly connected to the reinforcement block 18. In this way, the installation and maintenance costs are reduced by providing the optical cable self-supporting cover 17, so that it does not require an additional supporting structure and can be directly suspended in the air, thereby greatly reducing its installation cost.

[0034] The working principle of the butterfly optical cable with a central reinforcement is as follows: when the butterfly optical cable is used under normal circumstances, a water blocking tape 12 is provided on the outside of the halogen-free sheath 1 to prevent moisture from entering, and a fire extinguishing bag 10 is fixedly connected to the inside of the water blocking tape 12. When the fire source is about to burn to the halogen-free sheath 1, it explodes to extinguish the fire, and a protective cover 11 is provided on the outside of the water blocking tape 12 to prevent damage to it by external forces to a large extent, thereby greatly increasing the service life of the device, and the second reinforcement 15 is provided to make the connection between the halogen-free sheath 1 and the water blocking tape 12 more stable, thereby greatly improving the fire protection performance. In order to improve the stability of the device, a retractable pressure-proof sleeve 4 structure is provided on the inner side of the halogen-free sheath 1. Under normal circumstances, the lower pressure-proof sleeve 4 is used to more comprehensively protect the optical fiber 2 structure. When bending is required, the flexible connecting sleeve 5 can slide and exist on the inner side of the pressure-proof sleeve 4, which greatly reduces the stress during bending. In addition, a reinforcing column 9 is fixedly connected to the surface of the flexible sheath to increase the compressive strength, thereby greatly increasing the strength of use of the device. In addition, a loose sleeve is provided on the inner side of the flexible connecting sleeve 5 to protect the optical fiber 2 from the influence of internal stress and external side pressure, while providing good environmental adaptability.

[0035] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A butterfly-shaped optical cable with a central reinforcement member, comprising a halogen-free sheath (1), characterized in that: The inner side of the halogen-free sheath (1) is fitted with a pressure-proof sleeve (4), the inner side of the pressure-proof sleeve (4) is inserted with a flexible connecting sleeve (5), the surface of the pressure-proof sleeve (4) is fixedly connected to a first retaining ring (7), the surface of the flexible connecting sleeve (5) is fixedly connected to a second retaining ring (8), a sliding groove (6) is provided on the surface of the first retaining ring (7), the inner side of the sliding groove (6) is connected to a reinforcing column (9) by sliding, and the surface of the reinforcing column (9) is fixedly connected to the second retaining ring (8).

2. The butterfly-shaped optical cable with a central reinforcement member according to claim 1, wherein: A water-blocking tape (12) is provided on the outside of the halogen-free sheath (1), the inside of the water-blocking tape (12) is fixedly connected to a fire extinguishing bag (10), a plastic-coated aluminum tape (13) is bonded to the surface of the water-blocking tape (12), and the surface of the plastic-coated aluminum tape (13) is fixedly connected to a protective sheath (11).

3. The butterfly-shaped optical cable with a central reinforcement member according to claim 1, wherein: A protective sleeve (3) is provided on the inner side of the flexible connecting sleeve (5), an optical fiber (2) is provided on the inner side of the protective sleeve (3), and a cable core filler (19) is filled on the surface of the optical fiber (2).

4. The butterfly-shaped optical cable with a central reinforcement member according to claim 1, wherein: The surface of the halogen-free sheath (1) is provided with perforations (16), the inner sides of the perforations (16) are inserted with first reinforcement members (14), and the first reinforcement members (14) are symmetrically distributed.

5. The butterfly-shaped optical cable with a central reinforcement member according to claim 1, wherein: The outer side of the halogen-free sheath (1) is fixedly connected to a second reinforcement piece (15), and the surface of the second reinforcement piece (15) is fixedly connected to a water-blocking tape (12).

6. The butterfly-shaped optical cable with a central reinforcement member according to claim 2, wherein: The surface of the protective sleeve (11) is fixedly connected to the self-supporting sleeve (17), and the surface of the self-supporting sleeve (17) is fixedly connected to the reinforcing block (18).

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