Anti-corrosion submarine photoelectric composite cable protective sleeve

Abstract

The utility model belongs to the technical field of optical cables, in particular to an anti-corrosion submarine photoelectric composite cable protective sleeve, which comprises an anti-corrosion protective sleeve fixedly sleeved on the outer side of a composite optical cable, and the anti-corrosion protective sleeve comprises a fixed sleeve and a plurality of spines fixed on the outer side of the fixed sleeve; a plurality of spines which are overlapped along the axial projection direction of the anti-corrosion sheath form a group, no less than three groups of spines are distributed at equal intervals, and the connecting line of the end parts of two adjacent spines in each group is not overlapped with the fixing sleeve. The anti-corrosion sheath is fixedly sleeved on the outer side of the composite optical cable, and the spines are fixed on the outer side of the fixing sleeve of the anti-corrosion sheath, so that the anti-corrosion performance of the composite optical cable is improved. When the composite optical cable carrying the fixing sleeve and the spines on the outer side of the fixing sleeve sinks into the seabed, at least one set of spines can be inserted into the seabed, so that when seawater impacts the composite optical cable, the spines can prevent the fixing sleeve from moving, and back-and-forth friction between the composite optical cable and the seabed is avoided. And a plurality of anti-corrosion sheaths are arranged at designed intervals according to the seabed environment.

Description

Technical Field

[0001] This utility model belongs to the field of optical cable technology, specifically relating to a corrosion-resistant submarine optical-electric composite cable protective sleeve. Background Technology

[0002] Composite optical cables are laid on the seabed in two ways: shallow sea and deep sea. In shallow sea laying, a trench is dug on the seabed and the composite optical cable is buried in it to avoid damage caused by fish biting. In deep sea laying, due to the difficulty of trenching and the scarcity of fish, the composite optical cable is directly thrown into the seabed along a predetermined trajectory. However, the presence of currents on the seabed during deep sea laying causes repeated friction between the composite optical cable and the seabed, leading to damage to the protective layer of the composite optical cable and the corrosion-resistant layer, thus reducing its service life. Utility Model Content

[0003] To address the problems mentioned in the background section, this invention provides a corrosion-resistant protective sleeve for a submarine optical fiber composite cable. After the composite optical cable, carrying the fixing sleeve and spikes on the outside of the fixing sleeve, sinks into the seabed, the spikes prevent the fixing sleeve from moving, thereby avoiding friction between the composite optical cable and the seabed.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant submarine optical fiber composite cable protective sleeve, comprising a corrosion-resistant sleeve fixedly sleeved on the outside of the composite optical cable, the corrosion-resistant sleeve comprising a fixed sleeve and a plurality of spikes fixed on the outside of the fixed sleeve;

[0005] Several spikes that overlap along the axial projection direction of the anti-corrosion sleeve are grouped together. There are no fewer than three groups of spikes that are equally spaced. The end connection line of two adjacent spikes in each group does not coincide with the fixed sleeve.

[0006] As a preferred embodiment of the corrosion-resistant submarine optical-electric composite cable protective sleeve of this utility model, a flexible sleeve is fixedly connected to the inner surface of the fixed sleeve.

[0007] As a preferred embodiment of the corrosion-resistant submarine optical-electric composite cable protective sleeve of this utility model, the fixing sleeve is composed of two symmetrical parts, and the two symmetrical parts of the fixing sleeve are hinged at one end.

[0008] As a preferred embodiment of the corrosion-resistant submarine optical-electric composite cable protective sleeve of this utility model, the other end of the two symmetrical parts of the fixed sleeve is equipped with a locking component.

[0009] As a preferred embodiment of the corrosion-resistant submarine optical-electric composite cable protective sleeve of this utility model, the locking end of the fixed sleeve is provided with a protrusion distributed along the axial direction of the fixed sleeve. The locking component includes a fixed block, an elastic plate and a locking block. The two ends of the elastic plate are respectively fixedly connected to the fixed block and the locking block. The fixed block is fixedly connected to the outer end face of the fixed sleeve, and the locking block is used to cooperate with the outer surface of the protrusion.

[0010] As a preferred embodiment of the corrosion-resistant submarine optical fiber composite cable protective sleeve of this utility model, the fixing sleeve is truncated cone-shaped, the inner wall of the fixing sleeve that cooperates with the composite optical cable is cylindrical, and the fixing sleeve is squeezed and locked by the squeezing wheels when it moves with the composite optical cable, and the number of squeezing wheels is not less than two.

[0011] As a preferred embodiment of the corrosion-resistant submarine optical-electric composite cable protective sleeve of this utility model, one end of the extrusion wheel is fixedly connected to one end of the telescopic rod.

[0012] As a preferred embodiment of the corrosion-resistant submarine optical-electric composite cable protective sleeve of this utility model, a guide plate for guiding is slidably connected to the outer surface of the fixed sleeve.

[0013] In a preferred embodiment of the corrosion-resistant submarine optical-electric composite cable protective sleeve of this utility model, the telescopic rod and the guide plate are both fixedly connected by a frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by fixing an anti-corrosion sleeve on the outside of the composite optical cable, and fixing spikes on the outside of the anti-corrosion sleeve, when the composite optical cable, carrying the fixing sleeve and the spikes on the outside of the fixing sleeve, sinks into the seabed, at least one set of spikes can be inserted into the seabed. Thus, when the seawater impacts the composite optical cable, the spikes can prevent the fixing sleeve from moving, thereby avoiding the composite optical cable from rubbing back and forth with the seabed. The anti-corrosion sleeve is set with several spikes at designed intervals according to the seabed environment. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the flexible sleeve in this utility model;

[0019] Figure 4 This is a schematic diagram of the locking structure in this utility model;

[0020] Figure 5 This is a schematic diagram of the opening structure of the anti-corrosion sleeve in this utility model;

[0021] In the picture:

[0022] 1. Composite optical cable; 2. Corrosion-resistant sheath; 201. Fixing sleeve; 202. Spikes;

[0023] 203. Flexible sleeve;

[0024] 204. Locking components;

[0025] 2041. Fixed block; 2042. Elastic plate; 2043. Locking block;

[0026] 3. Extrusion rollers;

[0027] 4. Telescopic pole;

[0028] 5. Guide plate;

[0029] 6. Framework. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1-5 As shown:

[0032] A corrosion-resistant protective sleeve for a submarine optical fiber composite cable includes a fixing sleeve 201 disposed on the outside of the composite optical cable 1 and a corrosion-resistant protective sleeve 2. The corrosion-resistant protective sleeve 2 includes the fixing sleeve 201 and a plurality of spikes 202 fixed on the outside of the fixing sleeve 201.

[0033] Several overlapping spikes 202 along the axial projection direction of the anti-corrosion sleeve 2 constitute a group, and there are no fewer than three groups of spikes 202 that are equally spaced. Figure 3 As shown by the dotted lines, the end connection lines of two adjacent spikes 202 in each group do not coincide with the fixing sleeve 201.

[0034] In this embodiment, the composite optical cable 1 is laid on the seabed in two ways: shallow sea laying and deep sea laying. When laying in shallow sea, the composite optical cable 1 is buried in a trench dug on the seabed to avoid damage caused by fish biting. When laying in deep sea, due to the difficulty of trenching in deep sea and the scarcity of fish, the composite optical cable 1 is directly thrown into the seabed along a predetermined trajectory. However, when laying the composite optical cable 1 in deep sea, the presence of water currents on the seabed causes repeated friction between the composite optical cable 1 and the seabed, resulting in damage to the protective layer of the composite optical cable 1 and the destruction of its anti-corrosion layer, which reduces its service life. The design service life of a typical submarine composite optical cable 1 is 25 years.

[0035] By providing an anti-corrosion sleeve 2 on the outer fixing sleeve 201 of the composite optical cable 1, and fixing spikes 202 on the outer side of the fixing sleeve 201 of the anti-corrosion sleeve 2, when the composite optical cable 1, carrying the fixing sleeve 201 and the spikes 202 on the outer side of the fixing sleeve 201, sinks into the seabed, at least one set of spikes 202 can be inserted into the seabed. Thus, when the seawater impacts the composite optical cable 1, the spikes 202 can prevent the fixing sleeve 201 from moving, thereby avoiding the composite optical cable 1 from rubbing back and forth with the seabed. The anti-corrosion sleeve 2 is provided with several spikes at designed intervals according to the seabed environment.

[0036] In an optional embodiment, a flexible sleeve 203 is fixedly connected to the inner surface of the fixed sleeve 201.

[0037] In this embodiment, the flexible sleeve 203 not only increases the fixing stability between the fixed sleeve 201 and the composite optical cable 1, but also avoids damage to the surface of the composite optical cable 1 when the fixed sleeve 201 clamps it. In addition, the elasticity of the flexible sleeve 203 provides a basis for better locking and fixing of the locking member 204.

[0038] In an optional embodiment, the fixing sleeve 201 is composed of two symmetrical parts, and one end of the two symmetrical parts of the fixing sleeve 201 is hinged together. The same side of the two symmetrical parts of the fixing sleeve 201 can be hinged together by a hinge.

[0039] In this embodiment, the two parts of the fixing sleeve 201 are hinged together to facilitate the fixing and installation of the fixing sleeve 201 and the composite optical cable 1.

[0040] In an optional embodiment, locking elements 204 are mounted on the other end of the two symmetrical parts of the retaining sleeve 201.

[0041] In this embodiment, the two parts of the fixing sleeve 201 are connected by hinge and then fixed by locking member 204, so that the fixing sleeve 201 is stably fixed on the outside of the composite optical cable 1. The locking member 204 can be an existing pull-lock or bolt connection structure.

[0042] In an optional embodiment, the locking end of the fixing sleeve 201 is provided with a protrusion distributed along the axial direction of the fixing sleeve 201. The locking member 204 includes a fixing block 2041, an elastic plate 2042 and a locking block 2043. The two ends of the elastic plate 2042 are respectively fixedly connected to the fixing block 2041 and the locking block 2043. The fixing block 2041 is fixedly connected to the outer end face of the fixing sleeve 201, and the locking block 2043 is used to cooperate with the outer surface of the protrusion.

[0043] In this embodiment, since the composite optical cable 1 is continuously transported to the seabed during the laying process, the fixing sleeve 201 needs to be installed quickly and stably on the composite optical cable 1. The fast installation speed is achieved by the engagement of the locking block 2043 with the convex strip. When the two fixing sleeves 201 rotate and dock to close, the fixing sleeves 201 are pressed against the surface of the composite optical cable 1 by the flexible sleeve 203, which makes it easier for the locking block 2043 to be engaged and fixed with the convex strip. When the edge of the convex strip contacts the inclined surface of the locking block 2043, the elastic plate 2042 deforms itself so that the locking block 2043 can pass over the convex strip and engage with it.

[0044] In an optional embodiment, such as Figure 3 As shown, the fixing sleeve 201 is in the shape of a frustum. The inner wall of the fixing sleeve 201 that cooperates with the composite optical cable 1 is cylindrical. When the fixing sleeve 201 moves with the composite optical cable 1, it is squeezed and locked by the squeezing wheel 3, and the number of squeezing wheels 3 is not less than two.

[0045] In this embodiment, to make the engagement of the locking block 2043 with the protrusion easier and less labor-intensive, the outer surface of the fixing sleeve 201 is designed to be frustoconical. The worker simply places the fixing sleeve 201 on the outside of the composite optical cable 1. Then, as the composite optical cable 1 moves, the fixing sleeve 201 moves with the smaller diameter end of the fixing sleeve 201 facing the extrusion wheel 3. When the outer surface of the fixing sleeve 201 contacts the extrusion wheel 3, the extrusion wheel 3 will extrude pressure on the outer surface of the fixing sleeve 201. The flexible sleeve 203 allows the fixing sleeve 201 to move better with the composite optical cable 1 even when it is not fully closed. Since the fixing sleeve 201 is frustoconical, as the fixing sleeve 201 moves, the extrusion wheel 3 will gradually increase the pressure on the surface of the fixing sleeve 201 until the extrusion wheel 3 forces the fixing sleeve 201 to close completely. After the fixing sleeve 201 closes, the locking block 2043 will engage with the protrusion, resulting in faster installation speed and suitability for installation during continuous laying of the composite optical cable 1.

[0046] In an optional embodiment, one end of the compression wheel 3 is fixedly connected to one end of the telescopic rod 4.

[0047] In this embodiment, the telescopic rod 4 can adjust the position of the extrusion wheel 3 so that the extrusion wheel 3 can better cooperate with the fixed sleeve 201 to complete the shrinkage work. The telescopic rod 4 can be a manual or electric screw adjustment device, or a hydraulic cylinder.

[0048] In an optional embodiment, a guide plate 5 for guiding is slidably connected to the outer surface of the fixed sleeve 201.

[0049] In this embodiment, the guide plate 5 supports the fixing sleeve 201 and makes the fixing sleeve 201 slide along the guide plate 5. When the fixing sleeve 201 is not completely closed, the fixing sleeve 201 is less likely to fall off from the composite optical cable 1.

[0050] In an optional embodiment, the telescopic rod 4 and the guide plate 5 are both fixedly connected by the frame 6.

[0051] In this embodiment, the frame 6 is used to fix the telescopic rod 4 and the guide plate 5, and the frame 6 can be fixed at the position of the ship target by the bracket.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrosion resistant submarine optical fiber cable protection sheath, characterized by: The corrosion-proof sheath (2) including the fixing sleeve (201) is arranged outside the composite optical cable (1), the corrosion-proof sheath (2) includes the fixing sleeve (201) and a plurality of spikes (202) fixed outside the fixing sleeve (201); A plurality of spikes (202) overlapping in the axial projection direction of the corrosion-proof sheath (2) are a group, the spike (202) group is not less than three groups and is distributed at equal intervals, and the end connecting line of the adjacent two spikes (202) in each group does not coincide with the fixing sleeve (201).

2. The corrosion protection jacket for an EOPCC according to claim 1, characterized in that: The inner surface of the fixing sleeve (201) is fixedly connected with a flexible sleeve (203).

3. The anti-corrosion subsea optical composite cable protection jacket according to any one of claims 1-2, characterized in that: The fixing sleeve (201) is composed of two symmetrical parts, and one end of the two symmetrical parts of the fixing sleeve (201) is hinged.

4. The corrosion protection jacket for an EOPCC according to claim 3, characterized in that: The other end of the two symmetrical parts of the fixing sleeve (201) is provided with a locking piece (204).

5. The corrosion protection jacket for an EOPCC according to claim 4, characterized in that: The locking end of the fixing sleeve (201) is provided with a convex strip distributed in the axial direction of the fixing sleeve (201), the locking piece (204) includes a fixed block (2041), an elastic plate (2042) and a clamping block (2043), both ends of the elastic plate (2042) are fixedly connected with the fixed block (2041) and the clamping block (2043) respectively, the fixed block (2041) is fixedly connected at the outer end face of the fixing sleeve (201), and the clamping block (2043) is used for cooperating with the outer surface of the convex strip.

6. A corrosion protection jacket for an optical electrical composite submarine cable according to claim 4 or 5, characterized in that: The fixing sleeve (201) is in the shape of a circular truncated cone, the inner wall of the fixing sleeve (201) matched with the composite optical cable (1) is in the shape of a cylinder, the fixing sleeve (201) is extruded and locked by the extrusion wheel (3) when the fixing sleeve (201) moves with the composite optical cable (1), and the number of the extrusion wheel (3) is not less than two.

7. A corrosion protection jacket for an optical electrical composite submarine cable according to claim 6, characterized in that: One end of the extrusion wheel (3) is fixedly connected with one end of the telescopic rod (4).

8. A corrosion protection jacket for an optical electrical composite submarine cable according to claim 7, characterized in that: The outer surface of the fixing sleeve (201) is slidingly connected with a guide plate (5) for guiding.

9. A corrosion protection jacket for an optical electrical composite submarine cable according to claim 8, characterized in that: The telescopic rod (4) and the guide plate (5) are fixedly connected through a frame (6).

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