Indoor and outdoor dual-purpose optical fiber cable

Abstract

The utility model relates to the technical field of optical fiber cables, and discloses an indoor and outdoor dual-purpose optical fiber cable, which comprises a wire core mechanism. The outer protection mechanism is fixedly connected to the outer side of the wire core mechanism in a sleeving mode, the wire core mechanism comprises two sets of optical fiber cores arranged on the inner side of the wire core mechanism, the wire core mechanism further comprises a plastic-coated steel belt arranged on the outer side of the wire core mechanism, and the outer protection mechanism comprises a thickened polyethylene sheath fixedly connected to the outer wall of the plastic-coated steel belt in a sleeving mode. According to the technical scheme of the utility model, by adopting the structural design of the weight-reduced and reinforced outer sheath, the main body of the outer sheath is the thickened polyethylene sheath, and the four groups of air guide grooves are formed in the outer side of the thickened polyethylene sheath at equal angles, so that the outer surface area of the whole thickened polyethylene sheath is increased, and the air circulation is facilitated at the same time. In addition, due to the arrangement of the plurality of air guide grooves, the dead weight of the whole indoor and outdoor dual-purpose optical fiber cable is reduced, and the convenience of installation and arrangement of the indoor and outdoor dual-purpose optical fiber cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber cables, in particular to an indoor and outdoor dual-purpose optical fiber cable. Background Art

[0002] Fiber optic cable is a type of communications cable consisting of two or more glass or plastic optical fiber cores enclosed in a protective sheath, covered by a plastic PVC outer casing. Signals are transmitted along the inner fibers, typically using infrared light. Fiber optic cables are currently available for both indoor and outdoor use, depending on their intended use.

[0003] Existing indoor and outdoor dual-purpose optical fiber cables still have the following problems when in use: because indoor and outdoor dual-purpose optical fiber cables need to take into account the complex outdoor usage conditions, they are often thickened on the outer polyethylene sheath to protect the internal core structure. However, on the one hand, this increases the weight of the entire indoor and outdoor dual-purpose optical fiber cable, which is not conducive to installation and layout. At the same time, the thickened polyethylene sheath is not conducive to the heat dissipation of the internal core structure. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides an indoor and outdoor dual-purpose optical fiber cable, which solves the problems raised by the background art.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an indoor and outdoor dual-purpose optical fiber cable, comprising a core mechanism; an outer protective mechanism fixedly sleeved on the outside of the core mechanism, the core mechanism comprising two groups of optical fiber cores arranged on its inner side, the core mechanism also comprising a plastic-coated steel belt arranged on its outer side, the outer protective mechanism comprising a thickened polyethylene sheath fixedly sleeved on the outer wall of the plastic-coated steel belt, the annular outer wall of the thickened polyethylene sheath being X-shaped and having four groups of air guide grooves at equal angles, each group of the air guide grooves being multiple and arranged in an arc-shaped and equal-angled shape.

[0008] As a further solution of the present invention: the annular outer wall of the thickened polyethylene sheath is fixedly connected with four wear-resistant strips in a cross-shaped equal angle shape, and the four wear-resistant strips are staggered with four groups of air guide grooves. A group of arc-shaped steel wire strips are arranged inside and outside the thickened polyethylene sheath, and the group of arc-shaped steel wire strips is four and is arranged in an X-shaped equal angle shape. The arc-shaped steel wire strips are located on the inner side of a group of air guide grooves on the corresponding side. An arc-shaped groove for fixing the arc-shaped steel wire strips is provided on the outside of the thickened polyethylene sheath. The wear-resistant strips are made of TPE material, and the fixed connection between the wear-resistant strips and the outer wall of the thickened polyethylene sheath is glued.

[0009] As a further solution of the present invention: a through groove for fixing the plastic-coated steel belt is opened at the center of the thickened polyethylene sheath, the inner wall of the plastic-coated steel belt is fixedly sleeved with a water-blocking sleeve, the inner wall of the water-blocking sleeve is fixedly sleeved with a loose sleeve, and the inner side of the loose sleeve and the outer side of the optical fiber core are filled with a sleeve filler.

[0010] As a further solution of the present invention: the two groups of optical fiber cores are arranged concentrically inside and outside, the inner group of optical fiber cores has three optical fiber cores and is arranged at equal angles, and the outer group of optical fiber cores has ten optical fiber cores and is arranged at equal angles.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. In the present invention, a weight-reducing and reinforced outer sheath structure design is adopted. The outer sheath body is a thickened polyethylene sheath, but four groups of air guide grooves are opened at equal angles on the outside of the thickened polyethylene sheath. The opening of the air guide grooves increases the outer surface area of ​​the overall thickened polyethylene sheath, while facilitating air circulation, thereby facilitating the heat dissipation of the internal wire core mechanism. In addition, the opening of multiple air guide grooves reduces the weight of the overall indoor and outdoor dual-purpose optical fiber cable and increases the convenience of its installation and layout.

[0013] 2. In the present invention, the indoor and outdoor dual-purpose optical fiber cable is provided with a durable reinforcement component, that is, the outer wall of the thickened polyethylene sheath is fixedly connected with a wear-resistant strip made of TPE material between each two adjacent groups of air guide grooves, thereby improving the durability of the overall indoor and outdoor dual-purpose optical fiber cable, and an arc-shaped steel wire strip is provided in the thickened polyethylene sheath corresponding to each group of air guide grooves to improve the mechanical strength of the thickened polyethylene sheath where the air guide grooves are opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the outer protection mechanism of the utility model;

[0016] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 It is a partial three-dimensional diagram of the wire core mechanism of the present utility model.

[0018] In the figure: 1. Wire core mechanism; 2. External protection mechanism; 11. Plastic-coated steel belt; 12. Water-blocking sleeve; 13. Loose sleeve; 14. Sleeve filler; 15. Optical fiber core; 21. Thickened polyethylene sheath; 22. Arc groove; 23. Arc-shaped steel wire strip; 24. Through groove; 25. Air guide groove; 26. Wear-resistant strip. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] It should be noted that the thickened polyethylene sheath 21 is a prior art, which is a thickened component relative to the polyethylene sheath outside the conventional optical fiber cable. This is common knowledge among people in this technical field and will not be elaborated here.

[0023] See also Figures 1 to 4 In the embodiment of the present invention, an indoor and outdoor dual-purpose optical fiber cable includes a core mechanism 1; an outer protective mechanism 2, which is fixedly sleeved on the outer side of the core mechanism 1, the core mechanism 1 includes two groups of optical fiber cores 15 arranged on the inner side thereof, the core mechanism 1 also includes a plastic-coated steel belt 11 arranged on the outer side thereof, and the outer protective mechanism 2 includes a thickened polyethylene sheath 21 fixedly sleeved on the outer wall of the plastic-coated steel belt 11, and the annular outer wall of the thickened polyethylene sheath 21 is X-shaped and has four groups of air guide grooves 25 with equal angles, each group of air guide grooves 25 is multiple and has an arc shape. The outer sheath structure is designed with an angle shape and adopts a weight-reducing and reinforced outer sheath. The main body of the outer sheath is a thickened polyethylene sheath 21, but four groups of air guide grooves 25 are opened at equal angles on the outside of the thickened polyethylene sheath 21. The opening of the air guide grooves 25 increases the outer surface area of ​​the overall thickened polyethylene sheath 21, and is conducive to air circulation, thereby facilitating the heat dissipation of the internal wire core mechanism 1. In addition, the opening of multiple air guide grooves 25 reduces the weight of the overall indoor and outdoor dual-purpose optical fiber cable and increases the convenience of its installation and layout.

[0024] The outer annular wall of the thickened polyethylene sheath 21 is fixedly connected with four wear-resistant strips 26 in a cross-shaped and equal-angled shape. The four wear-resistant strips 26 are staggered with the four groups of air guide grooves 25. A group of arc-shaped steel wire strips 23 are arranged inside and outside the thickened polyethylene sheath 21. A group of arc-shaped steel wire strips 23 are four and arranged in an X-shaped and equal-angled shape. The arc-shaped steel wire strips 23 are located inside a group of air guide grooves 25 on the corresponding side. The outer side of the thickened polyethylene sheath 21 is provided with an arc groove 22 for fixing the arc-shaped steel wire strips 23. The wear-resistant strips 26 are made of TPE material. The indoor and outdoor dual-purpose optical fiber cable is provided with a durable reinforcement component, that is, the outer wall of the thickened polyethylene sheath 21 is fixedly connected with a wear-resistant strip 26 made of TPE material between each two adjacent groups of air guide grooves 25, thereby improving the durability of the overall indoor and outdoor dual-purpose optical fiber cable, and an arc-shaped steel wire strip 23 is provided in the thickened polyethylene sheath 21 corresponding to each group of air guide grooves 25, thereby improving the mechanical strength of the thickened polyethylene sheath 21 where the air guide grooves 25 are opened.

[0025] A through groove 24 for fixing the plastic-coated steel belt 11 is provided at the center of the thickened polyethylene sheath 21. A water-blocking sleeve 12 is fixedly sleeved on the inner wall of the plastic-coated steel belt 11, and a loose sleeve 13 is fixedly sleeved on the inner wall of the water-blocking sleeve 12. The inner side of the loose sleeve 13 and the outer side of the optical fiber core 15 are filled with a sleeve filler 14, forming a wire core mechanism 1, through which the optical fiber core 15 inside can be used to transmit optical fiber signals.

[0026] The two groups of optical fiber cores 15 are arranged concentrically inside and outside. The inner group of optical fiber cores 15 consists of three optical fiber cores and are arranged at equal angles, and the outer group of optical fiber cores 15 consists of ten optical fiber cores and are arranged at equal angles. The double-layer multi-optical fiber core 15 structure design can reduce the load of the overall indoor and outdoor dual-purpose optical fiber cable when transmitting optical fiber signals.

[0027] The working principle of the present invention is: the wire core mechanism 1 can transmit optical fiber signals through the optical fiber core 15 therein. In addition, the overall double-layer multi-optical fiber core 15 structural design can reduce the load of the overall indoor and outdoor dual-purpose optical fiber cable when transmitting optical fiber signals. At the same time, due to the overall weight-reducing and reinforced outer sheath structure design, the outer sheath main body is a thickened polyethylene sheath 21, but the outer side of the thickened polyethylene sheath 21 is provided with four groups of air guide grooves 25 at equal angles. The opening of the air guide grooves 25 increases the outer surface area of ​​the overall thickened polyethylene sheath 21, and is conducive to air circulation, thereby facilitating the heat dissipation of the internal wire core mechanism 1. In addition, the opening of multiple air guide grooves 25 reduces the dead weight of the overall indoor and outdoor dual-purpose optical fiber cable, and increases the convenience of its installation and arrangement.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An indoor and outdoor dual-purpose optical fiber cable, comprising a core structure (1); an outer protective structure (2) fixedly sleeved on the outer side of the core structure (1); Its characteristics are: The core mechanism (1) includes two groups of optical fiber cores (15) arranged on the inner side thereof, the core mechanism (1) also includes a plastic-coated steel belt (11) arranged on the outer side thereof, and the outer protection mechanism (2) includes a thickened polyethylene sheath (21) fixedly sleeved on the outer wall of the plastic-coated steel belt (11); The annular outer wall of the thickened polyethylene sheath (21) is provided with four groups of air guide grooves (25) in an X-shape and at equal angles, and each group of the air guide grooves (25) is multiple and arranged in an arc-shaped and equal angle shape; The annular outer wall of the thickened polyethylene sheath (21) is fixedly connected with four wear-resistant strips (26) in a cross shape at equal angles, and the four wear-resistant strips (26) and the four groups of air guide grooves (25) are arranged in a staggered shape; A group of arc-shaped steel wire strips (23) are arranged inside and outside the thickened polyethylene sheath (21).

2. The indoor and outdoor dual-purpose optical fiber cable according to claim 1, characterized in that: The group of arc-shaped steel wires (23) consists of four pieces and are arranged in an X-shape at equal angles. The arc-shaped steel wires (23) are located inside a group of air guide grooves (25) on a corresponding side thereof.

3. The indoor and outdoor dual-purpose optical fiber cable according to claim 1, characterized in that: The outer side of the thickened polyethylene sheath (21) is provided with an arc-shaped groove (22) for fixing and installing the arc-shaped steel wire strip (23).

4. The indoor and outdoor dual-purpose optical fiber cable according to claim 1, characterized in that: A through groove (24) for fixing and installing the plastic-coated steel belt (11) is provided at the center of the thickened polyethylene sheath (21).

5. The indoor and outdoor dual-purpose optical fiber cable according to claim 1, characterized in that: The wear-resistant strip (26) is made of TPE material, and the fixed connection between the wear-resistant strip (26) and the outer wall of the thickened polyethylene sheath (21) is adhesive bonding.

6. The indoor and outdoor dual-purpose optical fiber cable according to claim 1, characterized in that: The inner wall of the plastic-coated steel strip (11) is fixedly sleeved with a water-blocking sleeve (12), the inner wall of the water-blocking sleeve (12) is fixedly sleeved with a loose sleeve (13), and the inner side of the loose sleeve (13) and the outer side of the optical fiber core (15) are filled with a sleeve filler (14).

7. The indoor and outdoor dual-purpose optical fiber cable according to claim 1, characterized in that: The two groups of optical fiber cores (15) are arranged concentrically inside and outside, the inner group of optical fiber cores (15) is three and is arranged at equal angles, and the outer group of optical fiber cores (15) is ten and is arranged at equal angles.

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