A type of submarine cable conduit pulley sleeve

Abstract

This utility model discloses a submarine cable conduit pulley sleeve, comprising: an annular clamp having a shaft hole into which the submarine cable is adapted to be installed; a plurality of lugs mounted on the outer side of the annular clamp; and a plurality of pulleys slidably mounted on the lugs, with the axis of each pulley perpendicular to the axis of the shaft hole, and some of the pulleys extending beyond the lugs on the side away from the annular clamp. When the submarine cable moves within the conduit, the submarine cable conduit pulley sleeve moves along with the cable, the pulleys contacting the inner wall of the conduit and rolling relative to the conduit, thereby reducing the friction between the submarine cable and the conduit and lowering the risk of wear and tear on the cable during transport.

Description

Technical Field

[0001] This utility model relates to the field of submarine cable transmission, and further to a submarine cable conduit pulley sleeve. Background Technology

[0002] Submarine cables are cables wrapped in insulating material and laid on the seabed for telecommunications transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Modern submarine cables use optical fibers as the material to transmit telephone and internet signals.

[0003] Currently, when submarine cables move through pipelines, their outer surface comes into direct contact with the pipeline, causing friction and significant wear and tear on the cable surface. This can severely damage the cable and, in severe cases, affect its normal operation. Furthermore, when the length of the submarine cable passing through the pipeline is long, prolonged friction can damage the pipeline itself. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a submarine cable conduit pulley sleeve. When the submarine cable moves inside the conduit, the submarine cable conduit pulley sleeve moves along with the submarine cable. The pulley contacts the inner wall of the conduit and rolls relative to the conduit, thereby reducing the friction between the submarine cable and the conduit and lowering the risk of wear and tear on the submarine cable during transportation.

[0005] To achieve the above objectives, the present invention aims to provide a submarine cable conduit pulley sleeve, comprising:

[0006] An annular clamp having a shaft hole, into which a submarine cable is adapted to be installed;

[0007] A plurality of lugs are mounted on the outer side of the annular clamp.

[0008] A plurality of pulleys are slidably mounted on a plurality of lug assemblies, and the axis of the pulleys is perpendicular to the axis of the shaft hole, with some of the pulleys extending to the side of the lug assembly away from the annular clamp.

[0009] In some embodiments, the lug assembly includes a first lug and a second lug spaced at a preset distance, and the pulley is rotatably mounted between the first lug and the second lug, with the pulley hole coaxially arranged with the first lug hole of the first lug and the second lug hole of the second lug.

[0010] The lug assembly further includes a first rotating shaft that passes through the wheel hole of the pulley, the first lug hole of the first lug, and the second lug hole of the second lug.

[0011] In some embodiments, the number of the plurality of lug groups is three or more, and the three or more lug groups are arranged on the outer side of the annular clamp at a predetermined distance from each other.

[0012] In some embodiments, the annular clamp includes a first half-clamp and a second half-clamp, which are joined together to form the shaft hole.

[0013] In some embodiments, one end of the first half-clamp is a first upper end and the other end is a first lower end; the first half-clamp further includes a first connecting portion extending outward from the first upper end and a second connecting portion extending outward from the first lower end.

[0014] One end of the second half clamp is the second upper end, and the other end is the second lower end; the second half clamp further includes a third connecting portion extending outward from the second upper end and a fourth connecting portion extending outward from the second lower end.

[0015] The first connecting part is connected to the third connecting part, and the second connecting part is connected to the fourth connecting part.

[0016] In some embodiments, the first connecting portion is detachably connected to the third connecting portion, and the second connecting portion is detachably connected to the fourth connecting portion.

[0017] In some embodiments, the first connecting portion has a first connecting hole, the second connecting portion has a second connecting hole, the third connecting portion has a third connecting hole, and the fourth connecting portion has a fourth connecting hole;

[0018] The first connecting hole and the third connecting hole are coaxially arranged, the second connecting hole and the fourth connecting hole are coaxially arranged, and the axes of the first connecting hole, the third connecting hole, the second connecting hole and the fourth connecting hole are perpendicular to the axis of the shaft hole, respectively.

[0019] The submarine cable conduit pulley sleeve further includes a first screw and a second screw. The first screw passes through the first connecting hole and the third connecting hole to fix the first connecting part and the third connecting part. The second screw passes through the second connecting hole and the fourth connecting hole to fix the second connecting part and the fourth connecting part.

[0020] In some embodiments, the first connecting portion is rotatably connected to the third connecting portion, and the second connecting portion is detachably connected to the fourth connecting portion.

[0021] In some embodiments, the first connecting portion has a first connecting hole, the second connecting portion has a second connecting hole, the third connecting portion has a third connecting hole, and the fourth connecting portion has a fourth connecting hole;

[0022] The first connecting hole and the third connecting hole are coaxially arranged, the second connecting hole and the fourth connecting hole are coaxially arranged, and the axes of the first connecting hole and the third connecting hole are parallel to the axis of the shaft hole, while the axes of the second connecting hole and the fourth connecting hole are perpendicular to the axis of the shaft hole.

[0023] The submarine cable conduit pulley sleeve further includes a first screw and a second screw. The first screw passes through the first connecting hole and the third connecting hole to fix the first connecting part and the third connecting part. The second screw passes through the second connecting hole and the fourth connecting hole to fix the second connecting part and the fourth connecting part.

[0024] In some embodiments, the annular clamp is made of stainless steel. Attached Figure Description

[0025] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the submarine cable conduit pulley sleeve from one perspective of the first preferred embodiment of this utility model;

[0027] Figure 2 This is a three-dimensional structural schematic diagram of the submarine cable conduit pulley sleeve from another perspective of the first preferred embodiment of this utility model.

[0028] Figure 3 This is an exploded structural diagram of the submarine cable conduit pulley sleeve according to the first preferred embodiment of the present invention;

[0029] Figure 4 This is a three-dimensional structural diagram of the submarine cable conduit pulley sleeve in the first preferred embodiment of the present invention.

[0030] Figure 5 This is a front view of the cable conduit pulley sleeve in the first preferred embodiment of this utility model.

[0031] Figure 6 This is a three-dimensional structural schematic diagram of the submarine cable conduit pulley sleeve from one perspective of the second preferred embodiment of this utility model;

[0032] Figure 7 This is a three-dimensional structural schematic diagram of the submarine cable conduit pulley sleeve from another perspective of the second preferred embodiment of this utility model.

[0033] Figure 8 This is a three-dimensional structural diagram of the submarine cable conduit pulley sleeve in the open state according to the second preferred embodiment of this utility model;

[0034] Figure 9 This is an exploded structural diagram of the submarine cable conduit pulley sleeve according to the second preferred embodiment of the present invention. Detailed Implementation

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0036] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0037] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0038] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] refer to Figures 1 to 9This application provides a submarine cable conduit pulley sleeve 100, which includes an annular clamp 10, a plurality of lug assemblies 20, and a plurality of pulleys 30. The annular clamp 10 has a shaft hole 11, into which a submarine cable 200 is adapted to be installed. The plurality of lug assemblies 20 are installed on the outer surface of the annular clamp 10. The outer surface of the annular clamp 10 refers to the surface away from the shaft hole 11. The plurality of pulleys 30 are slidably installed on the plurality of lug assemblies 20, and the axis of the pulleys 30 is perpendicular to the axis of the shaft hole 11, with some of the pulleys 30 extending beyond the side of the lug assembly 20 away from the annular clamp 10.

[0041] refer to Figure 4 and Figure 5 In application, the submarine cable conduit pulley sleeve 100 provided in this application is adapted to be fitted onto the outside of the submarine cable 200 and enter the pipe 300 along with the submarine cable 200. The submarine cable conduit pulley sleeve 100 is located between the submarine cable 200 and the pipe 300. When the submarine cable 200 moves within the pipe 300, the submarine cable conduit pulley sleeve 100 moves along with the submarine cable 200. The pulley 30 contacts the inner wall of the pipe 200 and rolls relative to the pipe 300, thereby reducing the friction between the submarine cable 200 and the pipe 300 and reducing the risk of wear and tear on the submarine cable 200 during transportation.

[0042] It should be noted that in some modified embodiments, the pulley 30 can also be replaced by a ball bearing.

[0043] refer to Figure 1 , Figure 2 as well as Figure 3 Furthermore, the lug assembly 20 includes a first lug 21 and a second lug 22 spaced at a predetermined distance, and the pulley 30 is rotatably mounted between the first lug 21 and the second lug 22. The wheel hole 31 of the pulley 30 is coaxially arranged with the first ear hole 210 of the first lug 21 and the second ear hole 220 of the second lug 22. The lug assembly 20 further includes a first rotating shaft 23, which passes through the wheel hole 31 of the pulley 30, the first ear hole 210 of the first lug 21, and the second ear hole 220 of the second lug 22.

[0044] In some embodiments, the first rotating shaft 23 is a screw, with a nut at one end and the other end passing through the first lug 21, the second lug 22 and the pulley 30 and then fixed by the nut, so that the pulley 30 is rotatably installed between the first lug 21 and the second lug 22.

[0045] In some embodiments, one end of the first rotating shaft 23 is a nut, and the other end has a through hole perpendicular to the axis. After the first lug 21, the second lug 22, and the pulley 30 pass through the end with the through hole, a pin is inserted into the through hole to limit the first rotating shaft 23. It is understood that the specific type of the first rotating shaft 23 should not constitute a limitation of this application as long as it is possible to rotatably mount the pulley 30 to the lug assembly 20.

[0046] Preferably, the number of the lug groups 20 is three or more, and the three or more lug groups 20 are arranged at a predetermined distance from each other on the outer side of the annular clamp 10 so as to contact the pipe 300 at different positions around the submarine cable 200. Preferably, the number of lug groups 20 is six, and the six lug groups are arranged at a predetermined distance from each other on the outer side of the annular clamp 10. Optionally, the number of lug groups 20 may also be three, four, five, or six or more, and the specific number of lug groups 20 should not constitute a limitation of this application.

[0047] refer to Figure 3 Furthermore, the annular clamp 10 includes a first half-clamp 12 and a second half-clamp 13, which are spliced ​​together to form the shaft hole 11. That is, the annular clamp 10 adopts a two-part structural design. Before clamping the annular clamp 10 onto the outside of the submarine cable 200, at least one corresponding end of the first half-clamp 12 and the second half-clamp 13 can be separated to form an opening, facilitating the installation of the submarine cable 200 into the shaft hole 11 through the opening. After installing the annular clamp 10 onto the outside of the submarine cable 200, at least one corresponding end of the first half-clamp 12 and the second half-clamp 13 is fastened to each other. Similarly, when the submarine cable 200 is installed in place and there is no need to move the submarine cable 200 relative to the pipe 300, at least one end of the first half clamp 12 and the second half clamp 13 corresponding to each other is separated to form an opening, so that the submarine cable 200 can leave the shaft hole 11 through the opening, that is, it is convenient to remove the annular clamp 10 from the submarine cable 200 for the installation of the next submarine cable, thereby improving the utilization rate of the submarine cable pipe pulley sleeve 100 provided in this application.

[0048] refer to Figure 1Specifically, the first half-clamp 12 has a first upper end 121 at one end and a first lower end 122 at the other end; the first half-clamp 12 further includes a first connecting portion 123 extending outward from the first upper end 121 and a second connecting portion 124 extending outward from the first lower end 122. The second half-clamp 13 has a second upper end 131 at one end and a second lower end 132 at the other end; the second half-clamp 13 further includes a third connecting portion 133 extending outward from the second upper end 131 and a fourth connecting portion 134 extending outward from the second lower end 132. The first connecting portion 123 is connected to the third connecting portion 133, and the second connecting portion 124 is connected to the fourth connecting portion 134.

[0049] It should be noted that the first half-clamp 12 and the second half-clamp 13 are both semi-circular sheet structures, and after the two ends are spliced ​​together, they surround the approximately circular shaft hole 11 between them.

[0050] refer to Figure 3 Preferably, the first connecting part 123 is detachably connected to the third connecting part 133, and the second connecting part 124 is detachably connected to the fourth connecting part 134. That is, in this embodiment, before the annular clamp 10 is installed on the submarine cable 200, the first connecting part 123 and the second connecting part 133 can be completely separated, which facilitates the storage of the annular clamp 10 to a certain extent and reduces the storage space occupied. When it is necessary to clamp the annular clamp 10 to the outside of the submarine cable 200, the first half-clamp 12 and the second half-clamp 13 are respectively fitted onto both sides of the submarine cable 200, and the first connecting part 123 and the third connecting part 133 are locked together, and the second connecting part 124 and the fourth connecting part 134 are locked together. Accordingly, when it is necessary to remove the annular clamp 10 from the submarine cable 200, the fasteners fastening the first connecting part 123 and the third connecting part 133, and the fasteners fastening the second connecting part 124 and the fourth connecting part 134 are removed respectively, and the first half clamp 12 and the second half clamp 13 are removed from the submarine cable 200 respectively.

[0051] refer to Figure 3 Specifically, the first connecting part 123 has a first connecting hole 1230, the second connecting part 124 has a second connecting hole 1240, the third connecting part 133 has a third connecting hole 1330, and the fourth connecting part 134 has a fourth connecting hole 1340.

[0052] The first connecting hole 1230 and the third connecting hole 1330 are coaxially arranged, the second connecting hole 1240 and the fourth connecting hole 1340 are coaxially arranged, and the axes of the first connecting hole 1230, the third connecting hole 1330, the second connecting hole 1240 and the fourth connecting hole 1340 are perpendicular to the axis of the shaft hole 11.

[0053] The submarine cable conduit pulley sleeve 100 further includes a first screw 14 and a second screw 15. The first screw 14 passes through the first connecting hole 1230 and the third connecting hole 1330 and is used to fix the first connecting part 123 and the third connecting part 133. The second screw 15 passes through the second connecting hole 1240 and the fourth connecting hole 1340 and is used to fix the second connecting part 124 and the fourth connecting part 134.

[0054] Preferably, one end of the first screw 14 has a nut and the other end has a thread. The threaded end of the first screw 14 passes through the first connecting hole 1230 and the third connecting hole 1330 and is then fixed by the nut. Correspondingly, one end of the second screw 15 has a nut and the other end has a thread. The threaded end of the second screw 15 passes through the second connecting hole 1240 and the fourth connecting hole 1340 and is then fixed by the nut.

[0055] refer to Figures 6 to 9 In some embodiments, the first connecting portion 123 is rotatably connected to the third connecting portion 133, and the second connecting portion 124 is detachably connected to the fourth connecting portion 134. That is, in this embodiment, one end of the first half-clamp 12 and the second half-clamp 13 are rotatably connected by a rotational engagement, while the other end is detachably connected. When it is necessary to clamp the annular clamp 10 onto the outside of the submarine cable 200, the second connecting portion 124 and the fourth connecting portion 134 are first disassembled, and the first half-clamp 12 and the second half-clamp 13 are rotated relative to each other around the connection point of the first connecting portion 123 and the third connecting portion 133 to increase the distance between the second connecting portion 124 and the fourth connecting portion 134 (see reference). Figure 8The submarine cable 200 is installed into the shaft hole 11 through the gap between the second connecting part 124 and the fourth connecting part 134. Then, the first half-clamp 12 and the second half-clamp 13 are rotated relative to each other so that the second connecting part 124 and the fourth connecting part 134 are brought closer to each other, and the second connecting part 124 and the fourth connecting part 134 are locked together by fasteners. Similarly, the process of removing the annular clamp 10 from the submarine cable 200 is similar. First, the fasteners fixing the second connecting part 124 and the fourth connecting part 134 are opened, and the first half-clamp 12 and the second half-clamp 13 are rotated relative to each other to increase the distance between the second connecting part 124 and the fourth connecting part 134. The submarine cable 200 is then taken out from the shaft hole 11 through the gap between the second connecting part 124 and the fourth connecting part 134.

[0056] refer to Figure 9 Specifically, the first connecting portion 123 has a first connecting hole 1230a, the second connecting portion 124 has a second connecting hole 1240a, the third connecting portion 133 has a third connecting hole 1330a, and the fourth connecting portion 134 has a fourth connecting hole 1340a. The first connecting hole 1230a and the third connecting hole 1330a are coaxially arranged, the second connecting hole 1240a and the fourth connecting hole 1340a are coaxially arranged, and the axes of the first connecting hole 1230a and the third connecting hole 1330a are parallel to the axis of the shaft hole 11, while the axes of the second connecting hole 1240a and the fourth connecting hole 1340a are perpendicular to the axis of the shaft hole 11. The first screw 14 passes through the first connecting hole 1230a and the third connecting hole 1330a to fix the first connecting part 123 and the third connecting part 133; the second screw 15 passes through the second connecting hole 1240a and the fourth connecting hole 1340a to fix the second connecting part 124 and the fourth connecting part 134.

[0057] Preferably, the annular clamp 10 is made of stainless steel. In some embodiments, the annular clamp 10 may also be made of plastic. The specific material of the annular clamp 10 should not be construed as limiting this application.

[0058] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A submarine cable pipe-thrusting pulley cover characterized by comprising: include: An annular clamp having a shaft hole, into which a submarine cable is adapted to be installed; A plurality of lugs are mounted on the outer side of the annular clamp. A plurality of pulleys are slidably mounted on a plurality of lug assemblies, and the axis of the pulleys is perpendicular to the axis of the shaft hole, with some of the pulleys extending to the side of the lug assembly away from the annular clamp.

2. A submarine cable push-pull sheave housing according to claim 1, characterised in that, The lug assembly includes a first lug and a second lug spaced at a preset distance. The pulley is rotatably mounted between the first lug and the second lug. The wheel hole of the pulley is coaxially arranged with the first ear hole of the first lug and the second ear hole of the second lug. The lug assembly further includes a first rotating shaft that passes through the wheel hole of the pulley, the first lug hole of the first lug, and the second lug hole of the second lug.

3. The submarine cable conduit pulley sleeve according to claim 2, characterized in that, The number of the aforementioned lug groups is three or more, and the three or more lug groups are arranged on the outer side of the annular clamp at a predetermined distance from each other.

4. The submarine cable conduit pulley sleeve according to claim 1, characterized in that, The annular clamp includes a first half clamp and a second half clamp, which are spliced ​​together to form the shaft hole.

5. The submarine cable conduit pulley sleeve according to claim 4, characterized in that, One end of the first half-clamp is a first upper end, and the other end is a first lower end; the first half-clamp further includes a first connecting portion extending outward from the first upper end and a second connecting portion extending outward from the first lower end; One end of the second half clamp is the second upper end, and the other end is the second lower end; the second half clamp further includes a third connecting portion extending outward from the second upper end and a fourth connecting portion extending outward from the second lower end. The first connecting part is connected to the third connecting part, and the second connecting part is connected to the fourth connecting part.

6. The submarine cable conduit pulley sleeve according to claim 5, characterized in that, The first connecting part is detachably connected to the third connecting part, and the second connecting part is detachably connected to the fourth connecting part.

7. The submarine cable conduit pulley sleeve according to claim 6, characterized in that, The first connecting part has a first connecting hole, the second connecting part has a second connecting hole, the third connecting part has a third connecting hole, and the fourth connecting part has a fourth connecting hole; The first connecting hole and the third connecting hole are coaxially arranged, the second connecting hole and the fourth connecting hole are coaxially arranged, and the axes of the first connecting hole, the third connecting hole, the second connecting hole and the fourth connecting hole are perpendicular to the axis of the shaft hole, respectively. The submarine cable conduit pulley sleeve further includes a first screw and a second screw. The first screw passes through the first connecting hole and the third connecting hole to fix the first connecting part and the third connecting part. The second screw passes through the second connecting hole and the fourth connecting hole to fix the second connecting part and the fourth connecting part.

8. The submarine cable conduit pulley sleeve according to claim 5, characterized in that, The first connecting part is rotatably connected to the third connecting part, and the second connecting part is detachably connected to the fourth connecting part.

9. The submarine cable conduit pulley sleeve according to claim 8, characterized in that, The first connecting part has a first connecting hole, the second connecting part has a second connecting hole, the third connecting part has a third connecting hole, and the fourth connecting part has a fourth connecting hole; The first connecting hole and the third connecting hole are coaxially arranged, the second connecting hole and the fourth connecting hole are coaxially arranged, and the axes of the first connecting hole and the third connecting hole are parallel to the axis of the shaft hole, while the axes of the second connecting hole and the fourth connecting hole are perpendicular to the axis of the shaft hole. The submarine cable conduit pulley sleeve further includes a first screw and a second screw. The first screw passes through the first connecting hole and the third connecting hole to fix the first connecting part and the third connecting part. The second screw passes through the second connecting hole and the fourth connecting hole to fix the second connecting part and the fourth connecting part.

10. The submarine cable conduit pulley sleeve according to any one of claims 1 to 9, characterized in that, The material of the ring clamp includes stainless steel.

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