An ADSS optical cable suspension protection component

Abstract

The present invention relates to the field of ADSS optical cable technology, and specifically to an ADSS optical cable suspension protection component. An ADSS optical cable suspension protection component comprises a U-shaped hanging ring, a right-angle hanging ring is sleeved below the U-shaped hanging ring, and a suspension sleeve assembly is arranged below the right-angle hanging ring. The beneficial effects of the present invention are: the invention can support and strengthen the fixed position of the optical cable body by arranging an outer layer of pre-twisted wire and an inner layer of pre-twisted wire, and utilizes a rubber interlayer to fill between the outer layer of pre-twisted wire and the inner layer of pre-twisted wire, which can avoid the outer layer of pre-twisted wire and the inner layer of pre-twisted wire from loosening after long-term use, resulting in severe friction on the outer wall of the optical cable body, and by arranging an insulating sheath, the connection ports between the outer layer of pre-twisted wire, the inner layer of pre-twisted wire and the optical cable body can be fixed to avoid relative movement of the connection ports among the three, thereby avoiding the problem that the port burrs of the outer layer of pre-twisted wire and the inner layer of pre-twisted wire rub against the outer surface of the optical cable body, resulting in a reduction in the structural strength of the optical cable body.

Description

Technical Field

[0001] The present invention relates to the technical field of ADSS optical cables, in particular to an ADSS optical cable suspension protection component. Background Art

[0002] ADSS stands for all-dielectric self-supporting optical cable. It has the characteristics of being metal-free, tension-resistant, self-supporting, highly insulating, non-inductive, thin in diameter, light, easy to construct and economical. It is a composite optical cable made by winding the optical fiber bundle around a central reinforcement and undergoing insulation, waterproofing, reinforcement, sheathing and other protective measures.

[0003] Damage to optical cables caused by electrical corrosion has become the main cause of optical cable breakage. In existing optical cable protective cover devices, referring to patent document CN201945718U, an electrical corrosion-resistant tape is used in this patent document to fix a cylindrical electrical corrosion-resistant material to the electrical corrosion-prone area of ​​the optical cable. However, the tape fixes the circular cylinder, which is prone to aging and causes displacement of the circular cylinder. Therefore, the service life of the protective cover is short, and it is difficult to achieve long-term electrical corrosion protection for the optical cable.

[0004] Overhead optical cables need to be supported and fixed by support carriers at regular intervals to avoid the problem of sagging in the middle of the cable. Pre-twisted wires are often used to support and fix the optical cables at fixed positions. However, the pre-twisted wire ports and the cable sheath will undergo slight relative movement due to the external environment, causing the pre-twisted wire ports to rub against the cable sheath. After a long time, the cable sheath will be worn out and may also cause the cable to break.

[0005] To this end, the present invention discloses an ADSS optical cable suspension protection assembly. Summary of the Invention

[0006] The present invention aims to solve the technical problems existing in the prior art and provides an ADSS optical cable suspension protection component to solve the problem of accelerated aging caused by electrical corrosion of the optical cable and wear of the pre-twisted wire ports.

[0007] In order to solve the above technical problems, the present invention provides an ADSS optical cable suspension protection assembly, and the specific technical solutions are as follows:

[0008] An ADSS optical cable suspension protection component includes a U-shaped hanging ring, a right-angle hanging ring is sleeved below the U-shaped hanging ring, a suspension housing component is arranged below the right-angle hanging ring, an optical cable body is arranged inside the suspension housing component, an inner layer of pre-twisted wire and an outer layer of pre-twisted wire are sleeved on the outside of the optical cable body in sequence, a rubber interlayer is filled between the outer layer of pre-twisted wire and the inner layer of pre-twisted wire, a composite semiconductor coating is fixedly connected to the outer surface of the optical cable body, two insulating sheaths are sleeved on the outer surface of the optical cable body, and the two ends of the outer layer of pre-twisted wire, the inner layer of pre-twisted wire and the rubber interlayer respectively extend to the interior of the two insulating sheaths.

[0009] As a further optimization method of the optical cable protective sleeve provided by the present invention, the suspension sleeve assembly includes a U-shaped groove and a sleeve, the lower end of the right-angle hanging ring is hinged to the U-shaped groove, and the outer layer pre-twisted wire is fixedly connected to the inner wall of the sleeve.

[0010] By adopting the above-mentioned further optimization method of the optical cable protective sleeve provided by the present invention, the optical cable body and its accessories can be fixed inside the sleeve by providing a sleeve, and installed in a fixed position by using the U-shaped groove.

[0011] As a further optimization method of the optical cable protective sleeve provided by the present invention, the inner wall groove of the U-shaped groove is convex.

[0012] As a further optimization method of the optical cable protective sleeve provided by the present invention, the sleeve is detachably installed inside the inner wall groove of the U-shaped groove.

[0013] The above-mentioned method is used to further optimize the optical cable protective sleeve provided by the present invention. Since the groove inside the U-shaped groove is convex, the sleeve will not move up and down inside the U-shaped groove. At the same time, the sleeve is arranged to be detachably installed inside the U-shaped groove, which can realize the rapid fixation and disassembly of the optical cable body above the fixed position.

[0014] As a further optimization method of the optical cable protective sleeve provided by the present invention, the upper end of the U-shaped hanging ring is threadedly connected with a bolt assembly.

[0015] By adopting the above-mentioned further optimization method of the optical cable protective sleeve provided by the present invention, the upper part of the U-shaped hanging ring can be closed by the bolt assembly, and the upper part of the U-shaped hanging ring can be fixed by the bolt assembly, thereby improving the stability of the entire device in the installation position.

[0016] As a further optimization method of the optical cable protective sleeve provided by the present invention, the corners of the U-shaped hanging ring, the right-angle hanging ring and the U-shaped groove are all passivated.

[0017] The above-mentioned further optimization method of the optical cable protective sleeve provided by the present invention can prevent the sharp corners of the U-shaped hanging ring, the right-angle hanging ring and the U-shaped groove from scratching the outer skin of the optical cable body when installing the optical cable body.

[0018] As a further optimization method of the optical cable protective sleeve provided by the present invention, the outer layer pre-twisted wires and the inner layer pre-twisted wires have opposite rotation directions.

[0019] As a further optimization method of the optical cable protective sleeve provided by the present invention, reinforcing ribs may be added to the gaps between the single-strand channels inside the optical cable body.

[0020] The above-mentioned method is used to further optimize the optical cable protective sleeve provided by the present invention. By limiting the rotation direction of the outer pre-twisted wire and the inner pre-twisted wire, the force directions of the outer pre-twisted wire and the inner pre-twisted wire can be made opposite, thereby achieving the purpose of mutual offset of the stress between the outer pre-twisted wire and the inner pre-twisted wire, improving the supporting stability of the outer pre-twisted wire and the inner pre-twisted wire on the optical cable body, and at the same time, arranging reinforcing ribs can further improve the structural strength of the optical cable body and reduce the risk of breakage of the optical cable body.

[0021] Compared with the prior art, the optical cable protective cover of the present invention has the following beneficial effects:

[0022] By arranging outer pre-twisted wires and inner pre-twisted wires, the fixed position of the optical cable body can be supported and reinforced, and the rubber interlayer is used to fill the space between the outer pre-twisted wires and the inner pre-twisted wires to avoid the outer pre-twisted wires and the inner pre-twisted wires from loosening after long-term use, which may cause serious friction on the outer wall of the optical cable body. By arranging an insulating sheath, the connection ports between the outer pre-twisted wires, the inner pre-twisted wires and the optical cable body can be fixed to avoid relative movement of the connection ports between the three, thereby avoiding the problem that the port burrs of the outer pre-twisted wires and the inner pre-twisted wires rub against the outer surface of the optical cable body, which may reduce the structural strength of the optical cable body. By arranging a composite semiconductor coating, the corrosion resistance, wear resistance, impact resistance, collision resistance, explosion-proof and flame retardant properties of the optical cable body can be improved, which effectively improves the structural strength and electrical corrosion resistance of the optical cable body, making the optical cable body more stable during laying and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the optical cable protective cover of the present invention;

[0025] Figure 2 It is a cross-sectional schematic diagram of the three-dimensional structure of the optical cable protective cover of the present invention;

[0026] Figure 3 The optical cable protective sleeve of the present invention Figure 2 A magnified view of the structure in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. U-shaped hanging ring; 2. Right-angle hanging ring; 3. Suspension housing assembly; 301. U-shaped groove; 302. Sleeve; 4. Optical cable body; 5. Outer pre-twisted wire; 6. Inner pre-twisted wire; 7. Rubber interlayer; 8. Insulation sheath; 9. Composite semiconductor coating; 10. Bolt assembly. DETAILED DESCRIPTION

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application. Reference to "embodiments" herein means that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] As described in the background technology, electrical corrosion is the main cause of optical cable breakage, and the friction between the pre-twisted wire and the optical cable can easily damage the structural strength of the optical cable. Therefore, an ADSS optical cable suspension protection component is proposed to solve the above problems.

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0032] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] Embodiment 1 of the optical cable protective cover of the present invention

[0036] like Figures 1 to 3As shown, an ADSS optical cable suspension protection component includes a U-shaped hanging ring 1, a right-angle hanging ring 2 is sleeved below the U-shaped hanging ring 1, and a suspension housing component 3 is arranged below the right-angle hanging ring 2.

[0037] Here, the U-shaped hanging ring 1, the right-angle hanging ring 2 and the suspension housing assembly 3 are preferably made of hot-dip galvanized forgings, and the contact surface between the U-shaped hanging ring 1 and the right-angle hanging ring 2 should be mirror-finished and smooth to avoid hard friction between the contact surfaces of the U-shaped hanging ring 1 and the right-angle hanging ring 2, which may cause severe wear of the device.

[0038] The optical cable body 4 is arranged inside the suspension housing assembly 3. The inner layer pre-twisted wire 6 and the outer layer pre-twisted wire 5 are sequentially sleeved on the outside of the optical cable body 4. A rubber interlayer 7 is filled between the outer layer pre-twisted wire 5 and the inner layer pre-twisted wire 6.

[0039] The rubber interlayer 7 here is made of a special synthetic rubber material with a certain elasticity. It can automatically fill the gap between the outer pre-twisted wire 5 and the inner pre-twisted wire 6 to a certain extent when the outer pre-twisted wire 5 or the inner pre-twisted wire 6 is relaxed, thereby maximally avoiding the occurrence of gaps between the outer pre-twisted wire 5 or the inner pre-twisted wire 6 and the optical cable body 4, which may cause serious wear of the optical cable body 4.

[0040] The outer surface of the optical cable body 4 is fixedly connected with a composite semiconductor coating 9, and the outer surface of the optical cable body 4 is covered with two insulating sheaths 8. The outer pre-twisted wire 5, the inner pre-twisted wire 6 and the two ends of the rubber interlayer 7 extend into the interior of the two insulating sheaths 8 respectively.

[0041] The preferred material of the insulating sheath 8 here is polytetrafluoroethylene or silicone rubber. Polytetrafluoroethylene or silicone rubber has excellent chemical corrosion resistance and dielectric properties, and can be used for a long time at a temperature of -40°C to +65°C, thereby improving the service life of the device and achieving the purpose of long-term fixation of the connection port between the pre-twisted wire and the optical cable body 4.

[0042] In the prior art, after simulating the electric field distribution after the surface is coated with semi-conductive protective materials and insulating protective materials, it is generally believed that semi-conductive coatings can more effectively inhibit the electrical corrosion of cables caused by "dry-band arcing". Therefore, semiconductor coatings are selected for the protection of the optical cable body 4 here to achieve corrosion resistance, wear resistance, impact resistance, collision resistance, explosion resistance and flame retardancy, ensure that the optical cable is evenly stressed during the laying process, and achieve the purpose of enhancing the service life and structural strength of the optical cable body 4.

[0043] Embodiment 2 of the optical cable protective cover of the present invention

[0044] In this embodiment, the suspension housing assembly 3 includes a U-shaped groove 301 and a sleeve 302 , the lower end of the right-angle hanging ring 2 is hinged to the U-shaped groove 301 , and the outer pre-twisted wire 5 is fixedly connected to the inner wall of the sleeve 302 .

[0045] By providing the sleeve 302 , the optical cable body 4 and its accessory components can be fixed inside the sleeve 302 and installed in a fixed position using the U-shaped groove 301 .

[0046] In this embodiment, the inner wall groove of the U-shaped groove 301 is convex, and the sleeve 302 can be detachably installed inside the inner wall groove of the U-shaped groove 301.

[0047] Since the groove inside the U-shaped groove 301 is convex, the sleeve 302 will not move up and down inside the U-shaped groove 301. At the same time, the sleeve 302 is arranged to be detachably installed inside the U-shaped groove 301, so that the optical cable body 4 can be quickly fixed and removed at a fixed position.

[0048] Embodiment 3 of the optical cable protective cover of the present invention

[0049] In this embodiment, the upper end of the U-shaped hanging ring 1 is threadedly connected with a bolt assembly 10 .

[0050] The upper portion of the U-shaped hanging ring 1 can be closed by the bolt assembly 10 , and the upper portion of the U-shaped hanging ring 1 can be fixed by the bolt assembly 10 , thereby improving the stability of the entire device in the installation position.

[0051] In this embodiment, the corners of the U-shaped hanging ring 1, the right-angle hanging ring 2 and the U-shaped groove 301 are all passivated.

[0052] This can prevent the sharp corners of the U-shaped hanging ring 1 , the right-angle hanging ring 2 and the U-shaped groove 301 from scratching the outer skin of the optical cable body 4 when the optical cable body 4 is installed.

[0053] Embodiment 4 of the optical cable protective cover of the present invention

[0054] In this embodiment, the outer layer pre-twisted wires 5 and the inner layer pre-twisted wires 6 rotate in opposite directions, and reinforcing ribs may be added to the gaps between the single-strand channels inside the optical cable body 4 .

[0055] By limiting the rotation direction of the outer pre-twisted wire 5 and the inner pre-twisted wire 6, the force directions of the outer pre-twisted wire 5 and the inner pre-twisted wire 6 can be made opposite, thereby achieving the purpose of offsetting the stress between the outer pre-twisted wire 5 and the inner pre-twisted wire 6, improving the supporting stability of the outer pre-twisted wire 5 and the inner pre-twisted wire 6 on the optical cable body 4, and at the same time, providing reinforcing ribs can further improve the structural strength of the optical cable body 4 and reduce the risk of breakage of the optical cable body 4.

[0056] The specific working process of the present invention is as follows:

[0057] First, a composite semiconductor coating 9 is added to the position of the optical cable body 4 that needs to be supported and fixed or is prone to electrical corrosion. Then, the inner pre-twisted wire 6 is installed at the position that needs to be supported and fixed, and a rubber interlayer 7 is added to the outer ring of the inner pre-twisted wire 6. Then, an outer pre-twisted wire 5 is added to the outer ring of the rubber interlayer 7, and the outer pre-twisted wire 5 is fixedly connected to the sleeve 302.

[0058] If there is slack between the outer pre-twisted wire 5 and the inner pre-twisted wire 6, the rubber interlayer 7 will automatically fill the gap between the outer pre-twisted wire 5 and the inner pre-twisted wire 6, avoiding the problem of severe wear of the optical cable body 4 caused by gaps between the outer pre-twisted wire 5 or the inner pre-twisted wire 6 and the optical cable body 4.

[0059] Subsequently, the sleeve 302 is installed inside the U-shaped groove 301, and the U-shaped hanging ring 1 is used to fix and support the optical cable body 4. At the same time, the composite semiconductor coating 9 is provided to isolate and protect the outer surface of the optical cable body 4, thereby preventing the optical cable body 4 from being corroded by electricity or eroded by external factors, resulting in a decrease in structural strength.

[0060] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "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 elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0061] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. An ADSS optical cable suspension protection assembly, comprising a U-shaped hanging ring (1), characterized in that: A right-angled hanging ring (2) is sleeved below the U-shaped hanging ring (1), a suspension housing assembly (3) is provided below the right-angled hanging ring (2), an optical cable body (4) is provided inside the suspension housing assembly (3), an inner layer of pre-twisted wire (6) and an outer layer of pre-twisted wire (5) are sleeved on the outside of the optical cable body (4), a rubber interlayer (7) is filled between the outer layer of pre-twisted wire (5) and the inner layer of pre-twisted wire (6), a composite semiconductor coating (9) is fixedly connected to the outer surface of the optical cable body (4), two insulating sheaths (8) are sleeved on the outer surface of the optical cable body (4), and the outer surface of the optical cable body (4) is provided with a plurality of insulating sheaths (9). The ends of the outer pre-twisted wire (5), the inner pre-twisted wire (6) and the rubber interlayer (7) respectively extend into the interior of the two insulating sheaths (8); the suspension housing assembly (3) comprises a U-shaped groove (301) and a sleeve (302); the lower end of the right-angle hanging ring (2) is hinged to the U-shaped groove (301), and the outer pre-twisted wire (5) is fixedly connected to the inner wall of the sleeve (302); the edges and corners of the U-shaped hanging ring (1), the right-angle hanging ring (2) and the U-shaped groove (301) are all passivated; the outer pre-twisted wire (5) and the inner pre-twisted wire (6) rotate in opposite directions.

2. The ADSS optical cable suspension protection assembly according to claim 1, characterized in that: The inner wall groove of the U-shaped groove (301) is convex.

3. The ADSS optical cable suspension protection assembly according to claim 2, characterized in that: The sleeve (302) is detachably mounted inside the inner wall groove of the U-shaped groove (301).

4. The ADSS optical cable suspension protection assembly according to claim 1, characterized in that: The upper end of the U-shaped hanging ring (1) is threadedly connected to a bolt assembly (10).

5. The ADSS optical cable suspension protection assembly according to claim 1, characterized in that: Reinforcement ribs may be added to the gaps between the single-strand channels inside the optical cable body (4).

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