Cable protection device with displacement compensation function and ship with same

Abstract

The utility model provides a cable protection device with a displacement compensation function and a ship with the cable protection device, the cable protection device comprises a plurality of cable temporary storage boxes, the cable temporary storage boxes are arranged at intervals in the first direction, and temporary storage cavities used for storing cable remaining sections are formed in the cable temporary storage boxes; any two adjacent cable temporary storage boxes are connected through a cable protection pipe, the cable protection pipe comprises a first pipe section and a second pipe section which are sequentially arranged in the first direction, the first pipe section and the second pipe section are connected to the two adjacent cable temporary storage boxes respectively, and each of the first pipe section and the second pipe section comprises a first insertion end. The two first inserting ends are movably matched in an inserting mode in the first direction, and a first sealing ring is arranged between the two first inserting ends. According to the cable protection device with the displacement compensation function, the cable protection device can have the axial displacement compensation function, a waveform expansion joint or a special expansion joint does not need to be used, and the cost and the installation difficulty of the cable protection device are reduced.

Description

Technical Field

[0001] The utility model generally relates to the technical field of ships, and in particular to a cable protection device with a displacement compensation function and a ship having the same. Background Art

[0002] In existing ships, cables are arranged along the entire cargo hold deck from the stern to the bow, and a protective tube is provided on the outer periphery of the cable, and the protective tube is fixed to the cargo hold deck. During navigation, the ship will experience sagging, arching and twisting due to changes in sea conditions and floating conditions, causing the protective tube to deform axially or even be damaged. To solve the above problems, the existing protective tube is equipped with multiple stainless steel corrugated expansion joints or special expansion joints along its axial direction, so that the protective tube has an axial displacement compensation function to avoid damage to the protective tube due to hull deformation.

[0003] However, in the above-mentioned protection tube, the stainless steel corrugated expansion joint or the special expansion joint configured therein is relatively expensive and complicated to install, which leads to the problem of high cost and difficult installation of the cable protection tube. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a cable protection device with a displacement compensation function and a ship having the same.

[0005] In a first aspect, the present application provides a cable protection device with a displacement compensation function, comprising a plurality of cable cache boxes, wherein the plurality of cable cache boxes are arranged at intervals along a first direction, and a cache cavity for storing cable surplus segments is formed in the cable cache boxes, and any two adjacent cable cache boxes are connected by a cable protection tube, and the cable protection tube comprises a first tube segment and a second tube segment arranged in sequence along the first direction, and the first tube segment and the second tube segment are respectively connected to two adjacent cable cache boxes, and the first tube segment and the second tube segment both comprise a first plug-in end, and the two first plug-in ends are movably plugged in and matched along the first direction, and a first sealing ring is provided between the two first plug-in ends.

[0006] Furthermore, the cable protection tube also includes a third tube segment, which is located on a side of the second tube segment away from the first tube segment, and the third tube segment is fixedly connected to the cable buffer box. The third tube segment and the second tube segment are fixedly connected via a connecting flange assembly.

[0007] Furthermore, lubricating grease is filled between the two first plug ends.

[0008] Furthermore, among the two first plug ends, the tube wall of the first plug end with a larger cross-sectional area is provided with two injection ports spaced apart along the axial direction, and the lubricating paste is injected between the two first plug ends through the injection ports, wherein along the first direction, the first sealing ring is located between the two injection ports.

[0009] Furthermore, among the two first plug-in ends, the outer peripheral surface of the first plug-in end with a smaller cross-sectional area is provided with an annular first limiting ring groove, the first sealing ring is installed in the first limiting ring groove, and the first sealing ring is in contact with the inner tube wall surface of the first plug-in end with a larger cross-sectional area.

[0010] Furthermore, the cable protection tube also includes a third tube section, which is located on a side of the second tube section away from the first tube section, and the third tube section is connected to the cable cache box. The second tube section and the third tube section both include a second plug-in end, and the two second plug-in ends are movably plugged in along a first direction, wherein a second sealing ring is provided between the two second plug-in ends.

[0011] Furthermore, a ground wire is connected between the second pipe section and one of the cable buffer boxes.

[0012] Furthermore, the cable cache box includes a box body, a cover plate and a seal. The box body is provided with an opening on one side along the second direction. The cover plate is detachably covered on the opening. The seal is clamped between the cover plate and the box body.

[0013] Furthermore, a plurality of support shafts arranged along a first direction are provided in the cache cavity, and the support shafts are rotatably disposed in the cable cache box.

[0014] In a second aspect, the present application also provides a ship, comprising a cargo hold deck and a cable protection device, wherein the cable protection device is arranged on the cargo hold deck.

[0015] The present application provides a cable protection device with a displacement compensation function and a ship having the same. A plurality of cable cache boxes are arranged at intervals along a first direction. Any two adjacent cable cache boxes are connected by a cable protection tube. The cable protection tube is a split structure and the first tube segment and the second tube segment are respectively connected to two adjacent cable cache boxes. The first tube segment and the second tube segment are movably plugged in and matched along the first direction, so that the cable protection device can have an axial displacement compensation function, and there is no need to use a corrugated expansion joint or a special expansion joint, which reduces the cost and installation difficulty of the cable protection device. At the same time, a first sealing ring is provided at the plug-in fitting part between the first tube segment and the second tube segment to prevent external rainwater, seawater and other liquids from infiltrating into the cable protection device from the plug-in fitting gap between the first tube segment and the second tube segment, so that the cable protection device has good waterproof performance. In addition, the cache cavity of the cable cache box can store the cable surplus segment, and the cable surplus segment can compensate for the displacement of the cable to avoid the cable being pulled apart due to hull deformation, thereby improving the cable protection performance of the cable protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 A schematic diagram of the structure of a cable protection device provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the connection between the cable buffer box and the cable protection tubes on both sides thereof provided in an embodiment of the present application;

[0019] Figure 3 For attachment Figure 2 A magnified view of part A in FIG.

[0020] Figure 4 A schematic structural diagram of the first limiting ring groove provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] The present application embodiment provides a cable protection device with a displacement compensation function, which is used to be installed on a ship hull to protect a cable 10. Figure 1-3The cable protection device includes a plurality of cable buffer boxes 100, which are arranged at intervals along a first direction, and any two adjacent cable buffer boxes 100 are connected by a cable protection tube 200. The cable protection tube 200 includes a first tube segment 210 and a second tube segment 220 arranged in sequence along the first direction, and the first tube segment 210 and the second tube segment 220 are respectively connected to two adjacent cable buffer boxes 100, and the first tube segment 210 and the second tube segment 220 are both connected to the buffer cavity of the cable buffer box 100 to which they are connected. The first tube segment 210 and the second tube segment 220 both include a first plug-in end 201, and the two first plug-in ends 201 are movably plugged together along the first direction. When the cable protection device is subjected to axial force (tension or compression) due to hull deformation, the cable protection tube 200 performs axial displacement compensation through relative movement between the two first plug-in ends 201, so that the cable protection device has an axial displacement compensation function, avoiding the axial deformation of the cable protection device due to hull deformation, and at the same time, there is no need to use a corrugated expansion joint or a special expansion joint, which reduces the cost and installation difficulty of the cable protection device. In addition, the cable buffer box 100 can not only serve as an installation node and a maintenance node for the cable 10, but also improves the convenience of routing the cable 10 in the cable protection device and the convenience of repairing the cable 10. At the same time, a buffer cavity is formed in the cable buffer box 100, and the buffer cavity is used to store the cable surplus section 11. The cable surplus section 11 can compensate for the displacement of the cable 10, avoiding the cable 10 being broken due to hull deformation, and improving the protection performance of the cable protection device for the cable 10. A first sealing ring 260 is provided between the two first plug-in ends 201 to prevent external liquids such as rainwater and seawater from penetrating into the cable protection device through the plug-in fitting gap between the first pipe section 210 and the second pipe section 220, so that the cable protection device has better waterproof performance.

[0023] When the cable protection device is assembled on the hull, the cable buffer box 100 needs to be installed on the hull. In order to facilitate the installation of the cable buffer box 100, the cable buffer box 100 includes a box body 110 and a plurality of legs 150, and the plurality of legs 150 are fixedly arranged at the bottom of the box body 110, and the cable buffer box 100 is installed on the hull through the legs 150.

[0024] Based on the attached Figure 1 When the cable protection device is mounted on the cargo hold deck, the first direction may be the length direction of the cargo hold deck.

[0025] The two first plug ends 201 include a first plug end 201 with a larger cross-sectional area and a first plug end 201 with a smaller cross-sectional area, and the first plug end 201 with a smaller cross-sectional area is inserted into the first plug end 201 with a larger cross-sectional area, and the first sealing ring 260 is preferably provided at the first plug end 201 with a smaller cross-sectional area. For example, the first plug end 201 of the first pipe segment 210 can be inserted into the first plug end 201 of the second pipe segment 220 (in this case, the cross-sectional area of ​​the first plug end 201 of the first pipe segment 210 is smaller than that of the first plug end 201 of the second pipe segment 220), or the first plug end 201 of the second pipe segment 220 can be inserted into the first plug end 201 of the first pipe segment 210 (in this case, the cross-sectional area of ​​the first plug end 201 of the second pipe segment 220 is smaller than that of the first plug end 201 of the first pipe segment 210). When the first plug end 201 of the first pipe section 210 is inserted into the first plug end 201 of the second pipe section 220, the first sealing ring 260 is preferably disposed on the outer periphery of the first plug end 201 of the first pipe section 210; when the first plug end 201 of the second pipe section 220 is inserted into the first plug end 201 of the first pipe section 210, the first sealing ring 260 is preferably disposed on the outer periphery of the first plug end 201 of the second pipe section 220. Figure 4 In order to avoid displacement of the first sealing ring 260, a first limiting ring groove 211 may be provided in the first pipe section 210 or the second pipe section 220 where the first sealing ring 260 is located, and the first sealing ring 260 is limitedly installed in the first limiting ring groove 211. Optionally, the first plug-in end 201 of the first pipe section 210 is inserted into the first plug-in end 201 of the second pipe section 220, and the first limiting ring groove 211 is provided on the outer periphery of the first plug-in end 201 of the first pipe section 210, and the first sealing ring 260 is an O-ring and is installed in the first limiting ring groove 211.

[0026] In some embodiments of the present application, the cable protection tube 200 further includes a third tube segment 230, which is located on a side of the second tube segment 220 away from the first tube segment 210, and the third tube segment 230 is fixedly connected to the cable buffer box 100, and the third tube segment 230 and the second tube segment 220 are fixedly connected via a connecting flange assembly. Such a configuration not only reduces the difficulty of connecting and assembling the cable protection tube 200 and the cable buffer box 100, but also reduces the cost of the cable buffer box 100.

[0027] The connecting flange assembly includes a first connecting flange 240 and a second connecting flange 250. The first connecting flange 240 is fixedly connected to an end of the second pipe section 220 away from the first plug-in end 201. The second connecting flange 250 is fixedly connected to an end of the third pipe section 230 away from the cable cache box 100. The first connecting flange 240 and the second connecting flange 250 are fixedly connected via a bolt assembly.

[0028] The cable buffer box 100 includes two first side panels 111 arranged opposite to each other along a first direction and two second side panels 112 arranged opposite to each other in a second direction, wherein the first direction and the second direction are arranged perpendicularly to each other and are both perpendicular to the vertical direction. For two adjacent cable buffer boxes 100 connected by the cable protection tube 200, the first pipe segment 210 and the third pipe segment 230 are respectively fixedly connected to the two first side panels 111 arranged adjacent to each other in the two adjacent cable buffer boxes 100, and the first side panels 111 connecting the first pipe segment 210 or the third pipe segment 230 are provided with through holes, and the cable protection tube 200 is connected to the buffer cavity through the through holes. Among them, the fixed connection method between the first pipe segment 210 and the first side panel 111 and the second pipe segment 220 and the first side panel 111 can be but is not limited to welding, etc.

[0029] Of course, in other embodiments, the second pipe section 220 and the third pipe section 230 may also be movably connected, specifically: the second pipe section 220 and the third pipe section 230 both include a second plug-in end, and the two second plug-in ends are movably plugged in and matched along the first direction, wherein a second sealing ring is provided between the two second plug-in ends, and such an arrangement enables the cable 10 protection tube to have two axial displacement compensation positions, thereby expanding the compensation range of the axial displacement compensation of the cable 10 protection tube. The second plug-in end of the second pipe section 220 may be inserted into the second plug-in end of the third pipe section 230, or the second plug-in end of the third pipe section 230 may be inserted into the second plug-in end of the second pipe section 220. When the first plug-in end 201 of the second pipe segment 220 is inserted into the second plug-in end of the third pipe segment 230, the second sealing ring is preferably arranged on the outer periphery of the second plug-in end of the second pipe segment 220; when the second plug-in end of the third pipe segment 230 is inserted into the second plug-in end of the second pipe segment 220, the second sealing ring is preferably arranged on the outer periphery of the second plug-in end of the third pipe segment 230. In order to avoid displacement of the second sealing ring, a second limiting ring groove may be provided in the second pipe segment 220 or the third pipe segment 230 where the second sealing ring is located, and the second sealing ring is limitedly installed in the second limiting ring groove. Optionally, the second plug-in end of the third pipe segment 230 is inserted into the second plug-in end of the second pipe segment 220, and a second limiting ring groove is provided on the outer periphery of the second plug-in end of the third pipe segment 230, and the second sealing ring is an O-ring and is installed in the second limiting ring groove.

[0030] The insertion depth between the two first plug ends 201 and the two second plug ends can be reasonably set according to actual needs. For example, the insertion depth can be but is not limited to greater than or equal to 20 cm, so that the cable 10 protection tube can be axially extended by more than 20 cm.

[0031] In some embodiments of the present application, the lubricating grease 300 is filled between the two first plug ends 201 to reduce the wear of the two first plug ends 201 during axial relative movement, and in particular to lubricate and protect the first sealing ring 260 .

[0032] The lubricating grease 300 has good lubrication and low fluidity, so as to prevent the lubricating grease 300 from flowing out from between the two first plug ends 201. The lubricating grease 300 can be, but is not limited to, butter or industrial vaseline.

[0033] In some embodiments of the present application, among the two first plug ends 201, the first plug end 201 with a smaller cross-sectional area is inserted into the first plug end 201 with a larger cross-sectional area. The tube wall of the first plug end 201 with a larger cross-sectional area is provided with a nozzle 221, and the lubricating grease 300 is injected into the gap between the two first plug ends 201 through the nozzle 221. The number of the nozzles 221 can be one or more.

[0034] Optionally, there are two nozzles 221 and the two nozzles 221 are spaced apart along the axial direction of the first plug end 201, wherein along the first direction, the first sealing ring 260 is located between the two nozzles 221. With such an arrangement, the lubricating grease 300 can be disposed on both axial sides of the first sealing ring 260, so that when the cable 10 protection tube performs axial displacement compensation, the first sealing ring 260 can always be in contact with the lubricating grease 300.

[0035] In order to facilitate the injection of the lubricating paste 300 , a grease nozzle 270 may be provided at the injection port 221 .

[0036] In some embodiments of the present application, a grounding wire 280 is connected between the second pipe segment 220 and one of the cable buffer boxes 100 to prevent the damaged portion of the cable 10 from overlapping with the second pipe segment 220 and causing the second pipe segment 220 to be energized, thereby improving the anti-electrical safety of the cable protection device.

[0037] Optionally, the second pipe section 220 is provided with a first conductive connecting column 140, and the cable cache box 100 is provided with a second conductive connecting column 222. The first conductive connecting column 140 and the second conductive connecting column 222 are both provided with threaded holes and bolts are threaded in the threaded holes. One end of the grounding wire 280 is clamped between the first conductive connecting column 140 and the bolt, and the other end is clamped between the second conductive connecting column 222 and the bolt.

[0038] In some embodiments of the present application, the cable buffer box 100 includes a box body 110, a cover plate 113 and a seal, wherein one of the second side panels 112 is provided with an opening 1121, the cover plate 113 is detachably covered on the opening 1121, and a seal is clamped between the cover plate 113 and the box body 110. By providing the above-mentioned opening 1121, it is not only convenient to route the cable 10 in the cable protection device and to inspect and repair the cable 10, but also it is possible to free up space on the top of the box body 110 for routing other pipelines on the ship, saving deck space and improving the compactness of the hatch coaming layout. The seal is clamped between the cover plate 113 and the box body 110, which can prevent external rainwater or seawater from flowing into the cable buffer box 100 through the opening 1121. The seal can be, but is not limited to, a sealing strip or the like.

[0039] In order to facilitate the taking operation, a handle 120 may be provided on the outer side of the cover plate 113 .

[0040] In some embodiments of the present application, a plurality of support shafts 130 arranged along a first direction are provided in the buffer cavity, and the support shafts 130 are rotatably disposed in the cable buffer box 100. The cable surplus section 11 located in the buffer cavity is overlapped on the plurality of support shafts 130, and when the cable 10 moves, the cable surplus section 11 and the support shafts 130 are in rolling contact, which reduces the wear of the cable 10 and improves the protection effect of the cable 10.

[0041] The embodiment of the present application also provides a ship, comprising a cargo deck and a cable protection device, wherein the cable protection device is arranged on the cargo deck, wherein the cable 10 passes through the cable protection device and a cable surplus section 11 is reserved in the buffer cavity.

[0042] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.

[0043] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A cable protection device with displacement compensation function, characterized in that: It includes a plurality of cable cache boxes, which are arranged at intervals along a first direction, and a cache cavity for storing cable surplus segments is formed in the cable cache boxes. Any two adjacent cable cache boxes are connected by a cable protection tube, and the cable protection tube includes a first tube segment and a second tube segment which are sequentially arranged along the first direction, and the first tube segment and the second tube segment are respectively connected to two adjacent cable cache boxes, and the first tube segment and the second tube segment both include a first plug-in end, and the two first plug-in ends are movably plugged in and matched along the first direction, and a first sealing ring is provided between the two first plug-in ends.

2. The cable protection device with displacement compensation function according to claim 1, characterized in that: The cable protection tube also includes a third tube segment, which is located on a side of the second tube segment away from the first tube segment, and is fixedly connected to the cable buffer box. The third tube segment and the second tube segment are fixedly connected via a connecting flange assembly.

3. The cable protection device with displacement compensation function according to claim 1, characterized in that: Lubricating grease is filled between the two first plug ends.

4. The cable protection device with displacement compensation function according to claim 3, characterized in that: Among the two first plug-in ends, the tube wall of the first plug-in end with a larger cross-sectional area is provided with two injection ports arranged axially at intervals, and the lubricating paste is injected between the two first plug-in ends through the injection ports, wherein along the first direction, the first sealing ring is located between the two injection ports.

5. The cable protection device with displacement compensation function according to claim 1, characterized in that: Among the two first plug-in ends, the outer peripheral surface of the first plug-in end with a smaller cross-sectional area is provided with an annular first limiting ring groove, the first sealing ring is installed in the first limiting ring groove, and the first sealing ring is in contact with the inner tube wall surface of the first plug-in end with a larger cross-sectional area.

6. The cable protection device with displacement compensation function according to claim 1, characterized in that: The cable protection tube also includes a third tube section, which is located on the side of the second tube section away from the first tube section, and the third tube section is connected to the cable cache box. The second tube section and the third tube section both include a second plug-in end, and the two second plug-in ends are movably plugged in along the first direction, wherein a second sealing ring is provided between the two second plug-in ends.

7. The cable protection device with displacement compensation function according to claim 1, characterized in that: A grounding wire is connected between the second pipe section and one of the cable buffer boxes.

8. The cable protection device with displacement compensation function according to claim 1, characterized in that: The cable buffer box comprises a box body, a cover plate and a sealing member. The box body is provided with an opening on one side along the second direction. The cover plate is detachably covered on the opening. The sealing member is clamped between the cover plate and the box body.

9. The cable protection device with displacement compensation function according to claim 1, characterized in that: A plurality of support shafts arranged along the first direction are provided in the cache cavity, and the support shafts are rotatably disposed in the cable cache box.

10. A ship, characterized in that: It comprises a cargo hold deck and a cable protection device as described in any one of claims 1 to 9 above, wherein the cable protection device is arranged on the cargo hold deck.

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