Submarine cable center positioning protection device

Abstract

The utility model discloses a submarine cable center positioning protection device, which comprises a guide pipe, four mounting racks are equidistantly assembled on the circumferential surface of the guide pipe, two first electric cylinders are respectively assembled on each mounting rack, top plates are respectively assembled at the telescopic ends of every two first electric cylinders, and the top plates are arranged on the guide pipe. A plurality of jacking columns are inserted in the circumferential surface of the guide pipe at equal intervals, a first universal ball is assembled at one end of each jacking column and located in the guide pipe, and the other ends of the jacking columns are connected with the jacking plates respectively. Double-end guiding of the submarine cable is achieved, auxiliary clamping and fixing are achieved through the universal balls, the skin of the submarine cable cannot be damaged even if the submarine cable slides, double-end guiding is achieved, the submarine cable is driven to the end opening of the guiding pipe, friction cannot be generated, double protection is achieved in cooperation with the rubber rings, and the service life of the submarine cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine cable center positioning and protection, in particular to a submarine cable center positioning and protection device. Background Technique

[0002] As an important medium for power transmission, the safety and reliability of submarine cables during use are crucial; for submarine cables in oil platforms or offshore wind farms, they pass through a rigid protection pipe from the seabed to above the platform. To ensure smooth pipe penetration, the inner diameter of the cable protection pipe is generally about 3 times the outer diameter of the submarine cable.

[0003] Therefore, the submarine cable will swing freely inside the protection pipe. Especially at the lower end outlet of the protection pipe, the submarine cable is most severely affected by ocean currents and will keep swinging under the action of ocean currents. To reduce the fatigue damage of the submarine cable caused by friction during swinging inside the protection pipe, a central positioning fixture needs to be set between the outside of the submarine cable and the protection pipe for support and protection. However, the existing central positioning fixtures for submarine cables have complex structures and are inconvenient to install, which is not conducive to central positioning and protection of the submarine cable and reduces the installation efficiency at the same time. There may already be technical solutions to solve the above technical problems. In view of this, this case wants to provide a replacement or alternative technical solution. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a submarine cable center positioning and protection device, which solves the technical problems that the existing submarine cable will swing freely inside the protection pipe, especially at the lower end outlet of the protection pipe, where the submarine cable is most severely affected by ocean currents and will keep swinging under the action of ocean currents. To reduce the fatigue damage of the submarine cable caused by friction during swinging inside the protection pipe, a central positioning fixture needs to be set between the outside of the submarine cable and the protection pipe for support and protection. However, the existing central positioning fixtures for submarine cables have complex structures and are inconvenient to install, which is not conducive to central positioning and protection of the submarine cable and reduces the installation efficiency at the same time.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A submarine cable center positioning and protection device includes a guiding pipe. Four mounting frames are equidistantly assembled on the circumferential surface of the guiding pipe. Two first electric cylinders are respectively assembled on each mounting frame. Top plates are respectively assembled on the telescopic ends of every two first electric cylinders. A number of ejector posts are equidistantly inserted into the circumferential surface of the guiding pipe. First universal ball bearings are respectively assembled on one end of each ejector post and inside the guiding pipe. The other ends of the number of ejector posts are respectively connected to each top plate.

[0006] Preferably, four mounting plates are respectively assembled on the circumferential surface of the guiding tube and near both ends. A limiting rod is movably assembled on each mounting plate. A second universal ball is assembled on the end surface of each limiting rod. A second electric cylinder is movably assembled between each mounting plate and each limiting rod.

[0007] Preferably, two reinforcing rings are assembled between the four mounting frames.

[0008] Preferably, a reinforcing cover is assembled between the two reinforcing rings. Connecting blocks are respectively assembled on both side walls of the reinforcing cover.

[0009] Preferably, rubber rings are respectively assembled inside both ends of the guiding tube.

[0010] Preferably, the shape of each connecting block is T-shaped.

[0011] Beneficial effects

[0012] The utility model provides a submarine cable central positioning and protecting device, which has the following beneficial effects: The device realizes double-end guiding of the submarine cable, and is assisted by universal balls for clamping and fixing. Even if it slides, it will not damage the skin of the submarine cable. The double-end guiding makes the submarine cable away from the port of the guiding tube and will not cause friction. With the cooperation of rubber rings for double protection, the service life of the submarine cable is improved. Brief description of the drawings

[0013] Figure 1 It is a schematic structural diagram of a submarine cable central positioning and protecting device described in the utility model.

[0014] Figure 2 It is a schematic side sectional structure diagram of a submarine cable central positioning and protecting device described in the utility model.

[0015] Figure 3 It is a schematic top view structure diagram of a submarine cable central positioning and protecting device described in the utility model.

[0016] In the figure: 1 - guiding tube; 2 - mounting frame; 3 - first electric cylinder; 4 - top plate; 5 - top column; 6 - first universal ball; 7 - mounting plate; 8 - limiting rod; 9 - second universal ball; 10 - second electric cylinder; 11 - reinforcing ring; 12 - reinforcing cover; 13 - connecting block; 14 - rubber ring. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Through those skilled in the art, all the electrical components in this case are connected to their adapted power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the sequence of operation of each electrical component in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of electrical control will be made.

[0019] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment: Refer to Figures 1-3 , a submarine cable center positioning and protection device, including a guide tube 1. Four mounting brackets 2 are equidistantly assembled on the circumferential surface of the guide tube 1. Two first electric cylinders 3 are respectively assembled on each mounting bracket 2. A top plate 4 is respectively assembled on the telescopic ends of every two first electric cylinders 3. A number of ejector pins 5 are equidistantly inserted into the circumferential surface of the guide tube 1. A first universal ball 6 is respectively assembled at one end of each ejector pin 5 and located inside the guide tube 1. The other ends of the number of ejector pins 5 are respectively connected to each top plate 4. Four mounting plates 7 are respectively assembled on the circumferential surface of the guide tube 1 and near both ends. A limiting rod 8 is movably assembled on each mounting plate 7. A second universal ball 9 is respectively assembled on the end surface of each limiting rod 8. A second electric cylinder 10 is movably assembled between each mounting plate 7 and each limiting rod 8. Two reinforcing rings 11 are assembled between the four mounting brackets 2. A reinforcing cover 12 is assembled between the two reinforcing rings 11. Connecting blocks 13 are respectively assembled on both side walls of the reinforcing cover 12. Rubber rings 14 are respectively assembled inside both ends of the guide tube 1. The shape of each connecting block 13 is T-shaped.

[0021] The specific working principle is as follows:

[0022] The staff fixes this device in the submarine cable center through the T-shaped connecting block 13. After the fixing is completed, the submarine cable is sent into the guiding tube 1. After the sending is completed, the first electric cylinder 3 installed on the mounting frame 2 drives the top plate 4 installed on its telescopic end to move relatively, and at the same time drives the ejector post 5 to make the first universal ball 6 tightly clamp the submarine cable. After the submarine cable in the guiding tube 1 is fixedly clamped, the second electric cylinder 10 installed on the assembly plate 7 on the circumferential surface of the guiding tube 1 drives the limiting rod 8 movably connected thereto to move relatively. The second electric cylinder 10 then moves on the assembly plate 7, and the limiting rod 8 moves on the assembly plate 7 to perform double-end auxiliary clamping and fixing. When the submarine cable slides up and down immediately, the first universal ball 6 will not damage the skin of the submarine cable. When the submarine cable shakes, the submarine cable slides between the four second universal balls 9, and the balls in the second universal balls 9 roll in all directions, which will not damage the skin of the submarine cable and will not friction with the port of the guiding tube 1. The rubber ring 14 is used for the second layer of protection to play an insurance role. The reinforcing ring 11 and the reinforcing cover 12 are used to enhance the stability of the mounting frame 2. The T-shaped connecting block 13 increases the fixing area and improves the fixing stability.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A submarine cable center positioning protection device, comprising a guide tube (1), characterized in that: Four mounting frames (2) are installed at equal distances on the circumferential surface of the guide tube (1), two first electric cylinders (3) are installed on each mounting frame (2), and a top plate (4) is installed on the telescopic end of each of the two first electric cylinders (3). A plurality of top columns (5) are inserted at equal distances on the circumferential surface of the guide tube (1), and a first universal ball (6) is installed on one end of each top column (5) and located inside the guide tube (1), and the other ends of the plurality of top columns (5) are connected to each top plate (4).

2. A submarine cable center positioning protection device according to claim 1, characterized in that: Four assembly plates (7) are respectively mounted on the circumferential surface of the guide tube (1) and near both ends; a limit rod (8) is movably mounted on each assembly plate (7); a second universal ball (9) is respectively mounted on the end surface of each limit rod (8); and a second electric cylinder (10) is movably mounted between each assembly plate (7) and each limit rod (8).

3. A submarine cable center positioning protection device according to claim 1, characterized in that: Two reinforcement rings (11) are installed between the four mounting frames (2).

4. A submarine cable center positioning protection device according to claim 3, characterized in that: A reinforcement cover (12) is arranged between the two reinforcement rings (11), and connection blocks (13) are respectively arranged on the two side walls of the reinforcement cover (12).

5. A submarine cable center positioning protection device according to claim 1, characterized in that: Rubber rings (14) are respectively installed in both ends of the guide tube (1).

6. A submarine cable center positioning protection device according to claim 4, characterized in that: Each of the connecting blocks (13) is T-shaped.

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