CN220584947U

CN220584947U - DC submarine cable

Info

Publication number: CN220584947U
Application number: CN202322300356.4U
Authority: CN
Inventors: 陈仁昌; 钟扬; 胡林; 刘成; 刘超; 陆旭峰
Original assignee: Cccc Haifeng Wind Power Development Co ltd
Current assignee: Cccc Haifeng Wind Power Development Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-03-12
Anticipated expiration: 2033-08-25

Abstract

The utility model relates to the technical field of submarine cable protection, in particular to a direct-current submarine cable, which comprises a protective shell, wherein a cable main body is arranged in the protective shell, a clamping mechanism which is convenient for clamping and buffering the cable main body is arranged on the inner side of the protective shell, and a buffering mechanism which is convenient for collision and energy absorption of the protective shell and the cable main body is arranged on the inner side of the protective shell. The direct-current submarine cable is characterized in that a retraction plate sliding in a buffer groove formed in a protection shell is supported by an energy-absorbing spring, more collision force can be absorbed after the protection shell and a cable main body are collided, a sliding block which is in sliding connection with a clamping plate is connected with a movable groove at the bottom of the retraction plate, an anti-slip gasket is connected with the cable main body at the bottom of the clamping plate, and friction of the protection shell to the cable main body is reduced when submarine ocean currents surge.

Description

DC submarine cable

Technical Field

The utility model relates to the technical field of submarine cable protection, in particular to a direct-current submarine cable.

Background

Submarine cables are cables wrapped with insulating material and laid on the sea floor for telecommunication transmission. Submarine cables are classified into submarine communication cables and submarine power cables. Modern submarine cables all use optical fibers as materials to transmit telephone and internet signals, and a protective shell is required to be installed outside the cable in the process of laying the submarine cable in a submarine environment complex area so as to prolong the service life.

The submarine cable does not have a structure for preventing collision and reducing friction with the shell when in use, so that the submarine cable and the shell can collide with reefs to damage and weaken the protection effect when in ocean current surge, and meanwhile, the ocean current surge shell is easy to abrade due to long-time friction with the cable, so that the direct-current submarine cable is inconvenient to use and is designed based on the defects of the prior art.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a direct current submarine cable which has the advantages of collision prevention and friction reduction of a shell, and solves the problems that the damage and the weakening of the protection effect are caused by the collision of the cable and the reef, and the shell is easy to abrade due to long-time friction with the cable due to ocean current surge.

The utility model provides the following technical scheme: the direct current submarine cable comprises a protective shell, wherein a cable main body is arranged in the protective shell, a clamping mechanism which is convenient for clamping and buffering the cable main body is arranged on the inner side of the protective shell, and a buffering mechanism which is convenient for collision energy absorption of the protective shell and the cable main body is arranged on the inner side of the protective shell;

the buffering mechanism comprises a buffering groove, a retraction plate and an energy-absorbing spring, wherein the buffering groove is formed in the side wall of the protective shell, the retraction plate is slidably connected in the buffering groove, and two ends of the energy-absorbing spring are fixedly connected to the retraction plate and the protective shell respectively.

As a preferable technical scheme of the utility model, the buffer mechanism further comprises a limiting rod and connecting side blocks, wherein the limiting rod is arranged on the side wall of the buffer groove, and the connecting side blocks are fixedly connected to two sides of the retraction plate.

As a preferable technical scheme of the utility model, the clamping mechanism comprises a movable groove, a slide bar, a slide block, a clamping plate, an anti-slip gasket and a limiting spring, wherein the movable groove is formed in the lower surface of the retraction plate, the slide bar is fixedly connected in the movable groove, the slide block is slidingly connected on the slide bar, the clamping plate is fixedly connected on the lower surface of the slide block, the anti-slip gasket is fixedly connected on the lower surface of the clamping plate, and the limiting spring is movably sleeved on the slide bar.

As a preferable technical scheme of the utility model, the side surface of the protective shell is fixedly connected with an installation side skirt, one end of the protective shell is fixedly connected with a main spherical hinge, and the other side of the protective shell is fixedly connected with an auxiliary spherical hinge.

As a preferable technical scheme of the utility model, the protective shell is of a split type structure.

As a preferable technical scheme of the utility model, the sliding block is connected in the movable groove in a sliding way, the limiting spring is contacted with the sliding block, and the anti-skid gasket is clamped and fixed on the cable main body.

As a preferable technical scheme of the utility model, the connecting side block is connected to the limiting rod in a sliding way.

Compared with the prior art, the utility model has the following beneficial effects:

1. this direct current submarine cable, through when protecting shell and cable main part receive the ocean current to surge by the removal with submarine reef collision, the protecting shell contacts with the reef earlier and stops the motion, the cable main part continues to move in the inside of protecting shell under inertial action, the cable main part that removes makes the board that contracts this moment follow at the buffer tank through the grip block, owing to retract the board top and be provided with the energy-absorbing spring, the energy-absorbing spring can gradually will retract the board and remove the power that produces for absorbing when the board removes and all keep steady with the protecting shell can, the device is convenient for prevent protecting shell and cable main part collision impaired.

2. This direct current submarine cable can be carried the activity along with it when the protecting crust receives the ocean current to surge, and buffer gear can restrict the activity of protecting crust this moment in the horizontal activity in-process of protecting crust, simultaneously because a plurality of grip block centre gripping in the protecting crust is in cable main part, be provided with anti-skidding gasket between grip block and the cable main part and increase clamping stability, can make the slider at the inside activity of movable groove through the slider when the protecting crust is vertical to be movable, be provided with spacing spring in the inside of movable groove and play spacing effect to the slider for the limiting spring's restriction can be received in the vertical activity in-process of protecting crust, amplitude and frequency when reducing the activity, the device is convenient for prevent that the protecting crust from long-time activity from causing comparatively serious friction damage to the protecting crust.

Drawings

FIG. 1 is a schematic diagram of a protective shell structure according to the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional structure of a protective shell according to the present utility model;

FIG. 3 is a schematic view of a buffer mechanism according to the present utility model;

fig. 4 is a schematic cross-sectional view of a clamping mechanism according to the present utility model.

In the figure: 1. a protective shell; 101. installing a side skirt; 102. a main spherical hinge; 103. auxiliary spherical hinge; 104. a cable body; 2. a clamping mechanism; 201. a movable groove; 202. a slide bar; 203. a slide block; 204. a clamping plate; 205. an anti-slip gasket; 206. a limit spring; 3. a buffer mechanism; 301. a buffer tank; 302. a limit rod; 303. a retraction plate; 304. connecting the side blocks; 305. and an energy absorbing spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a direct current submarine cable comprises a protecting shell 1, wherein a cable main body 104 is arranged in the protecting shell 1, a clamping mechanism 2 which is convenient for clamping and buffering the cable main body 104 is arranged on the inner side of the protecting shell 1, a buffering mechanism 3 which is convenient for collision and energy absorption of the protecting shell 1 and the cable main body 104 is arranged on the inner side of the protecting shell 1, an installation side skirt 101 is fixedly connected to the side surface of the protecting shell 1, a main spherical hinge 102 is fixedly connected to one end of the protecting shell 1, an auxiliary spherical hinge 103 is fixedly connected to the other side of the protecting shell 1, and the protecting shell 1 is of a split structure.

Referring to fig. 3, the buffering mechanism 3 includes a buffering groove 301, a retracting plate 303 and an energy-absorbing spring 305, the buffering groove 301 is formed in a side wall of the protecting case 1, the retracting plate 303 is slidably connected in the buffering groove 301, two ends of the energy-absorbing spring 305 are fixedly connected to the retracting plate 303 and the protecting case 1 respectively, the buffering mechanism 3 further includes a limiting rod 302 and a connecting side block 304, the limiting rod 302 is formed in a side wall of the buffering groove 301, the connecting side block 304 is fixedly connected to two sides of the retracting plate 303, and the connecting side block 304 is slidably connected to the limiting rod 302.

By arranging the limiting rod 302 and the connecting side block 304, the moving direction of the retracting plate 303 is conveniently limited, and by arranging the energy-absorbing spring 305, kinetic energy absorption and shock absorption are conveniently carried out after the protective shell 1 and the cable main body 104 are collided.

Referring to fig. 4, the clamping mechanism 2 includes a movable slot 201, a sliding rod 202, a sliding block 203, a clamping plate 204, an anti-slip spacer 205 and a limiting spring 206, wherein the movable slot 201 is formed on the lower surface of the retraction plate 303, the sliding rod 202 is fixedly connected inside the movable slot 201, the sliding block 203 is slidably connected on the sliding rod 202, the clamping plate 204 is fixedly connected on the lower surface of the sliding block 203, the anti-slip spacer 205 is fixedly connected on the lower surface of the clamping plate 204, the limiting spring 206 is movably sleeved on the sliding rod 202, the sliding block 203 is slidably connected inside the movable slot 201, the limiting spring 206 is in contact with the sliding block 203, and the anti-slip spacer 205 is clamped and fixed on the cable main body 104.

Through setting up spacing spring 206, be convenient for be in making the protection shell 1 longitudinal movement in-process limit to protection shell 1 by spacing spring 206, through setting up anti-skidding gasket 205, be convenient for increase the stability of connecting between grip block 204 and cable body 104.

When the direct-current submarine cable is used in an initial state, firstly, the side skirt 101 is arranged on two sides of the split type protective shell 1 to be connected, the auxiliary spherical hinge 103 and the main spherical hinge 102 are arranged on two ends of the protective shell 1 to connect a plurality of protective shells 1 so as to play a role in protecting the protective shell 1, the retracting plate 303 sliding in the buffer groove 301 formed in the protective shell 1 is supported by the energy-absorbing spring 305, so that more collision force can be absorbed after the protective shell 1 and the cable main body 104 are collided, meanwhile, the sliding block 203 sliding in the movable groove 201 at the bottom of the retracting plate 303 is connected with the clamping plate 204, and the bottom of the clamping plate 204 is connected with the anti-skid gasket 205 to be connected with the cable main body 104, so that friction of the protective shell 1 to the cable main body 104 is reduced when submarine ocean current gushes;

when the protection shell 1 and the cable main body 104 need to be prevented from being damaged by collision, firstly, when the protection shell 1 and the cable main body 104 are moved to collide with the submarine reef under the action of ocean currents, the protection shell 1 is contacted with the submarine reef to stop moving, the cable main body 104 continues to move in the protection shell 1 under the action of inertia, at the moment, the moving cable main body 104 enables the retraction plate 303 to move in the buffer groove 301 through the clamping plate 204, and because the energy-absorbing spring 305 is arranged above the retraction plate 303, the energy-absorbing spring 305 can gradually absorb the force generated when the retraction plate 303 moves in the moving process of the retraction plate 303 until the cable main body 104 and the protection shell 1 are kept stable.

When needing to prevent that protective housing 1 from moving for a long time and causing comparatively serious friction damage to protective housing 1, at first can be carried when protective housing 1 receives the ocean current to surge and then moves, buffer gear 3 can restrict the activity of protective housing 1 in the time of protective housing 1 horizontal activity in-process, simultaneously because a plurality of grip block 204 centre gripping in protective housing 1 is on cable main part 104, be provided with anti-skidding gasket 205 between grip block 204 and the cable main part 104 and increase clamping stability, can make slider 203 at the inside activity of movable groove 201 through slider 203 when protective housing 1 longitudinal movement, be provided with spacing spring 206 in the inside of movable groove 201 and play the limiting action to slider 203 for protective housing 1 longitudinal movement in-process can receive spacing spring 206's restriction, amplitude and frequency when reducing the activity, the device is convenient for prevent protective housing 1 long-time activity and causes comparatively serious friction damage to protective housing 1.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A direct current submarine cable comprising a protective casing (1), characterized in that: the cable protection device is characterized in that a cable main body (104) is arranged in the protection shell (1), a clamping mechanism (2) which is convenient for clamping and buffering the cable main body (104) is arranged on the inner side of the protection shell (1), and a buffering mechanism (3) which is convenient for collision and energy absorption of the protection shell (1) and the cable main body (104) is arranged on the inner side of the protection shell (1);

the buffering mechanism (3), the buffering mechanism (3) comprises a buffering groove (301), a retraction plate (303) and an energy-absorbing spring (305), the buffering groove (301) is formed in the side wall of the protective shell (1), the retraction plate (303) is slidably connected in the buffering groove (301), and two ends of the energy-absorbing spring (305) are fixedly connected to the retraction plate (303) and the protective shell (1) respectively.

2. A direct current submarine cable according to claim 1, wherein: the buffer mechanism (3) further comprises a limiting rod (302) and connecting side blocks (304), the limiting rod (302) is arranged on the side wall of the buffer groove (301), and the connecting side blocks (304) are fixedly connected to the two sides of the retracting plate (303).

3. A direct current submarine cable according to claim 1, wherein: the clamping mechanism (2) comprises a movable groove (201), a sliding rod (202), a sliding block (203), a clamping plate (204), an anti-slip gasket (205) and a limiting spring (206), wherein the movable groove (201) is formed in the lower surface of a retracting plate (303), the sliding rod (202) is fixedly connected to the inside of the movable groove (201), the sliding block (203) is slidingly connected to the sliding rod (202), the clamping plate (204) is fixedly connected to the lower surface of the sliding block (203), the anti-slip gasket (205) is fixedly connected to the lower surface of the clamping plate (204), and the limiting spring (206) is movably sleeved on the sliding rod (202).

4. A direct current submarine cable according to claim 1, wherein: the side fixedly connected with installation skirt (101) of protecting crust (1), the one end fixedly connected with main spherical hinge (102) of protecting crust (1), the opposite side fixedly connected with auxiliary spherical hinge (103) of protecting crust (1).

5. A dc submarine cable according to claim 4, wherein: the protective shell (1) is of a split type structure.

6. A direct current submarine cable according to claim 3, wherein: the sliding block (203) is slidably connected in the movable groove (201), the limiting spring (206) is in contact with the sliding block (203), and the anti-slip gasket (205) is clamped and fixed on the cable main body (104).

7. A direct current submarine cable according to claim 2, wherein: the connecting side block (304) is connected to the limiting rod (302) in a sliding mode.