A recoverable submarine cable laying apparatus

Abstract

The present application relates to the technical field of submarine cable laying equipment, and particularly relates to a recyclable submarine cable laying equipment, which comprises a limiting shell, and the limiting shell comprises a first external shell and a second external shell which are movably connected. The recyclable submarine cable laying equipment changes the connecting mode of the existing bending limiter, adopts a mode of movably connecting on one side, and changes the screw fastening into a buckle type fastening assembly controlled by a pressure sensing control module, so that the installation, separation and recycling are greatly facilitated. After the buckle type fastening assembly is separated, the built-in quick separation mechanism and the external quick separation mechanism added to the limiter quickly act, the limiter is prevented from being stuck, and the recycling efficiency is improved. The external centrifugal driving device is arranged on the outer side of the first external shell and the second external shell, so that the limiter can be quickly adjusted in position according to the needs, and the functionality and operability are improved.

Description

Technical Field

[0001] This invention relates to the field of submarine cable laying equipment technology, and in particular to a recyclable submarine cable laying device. Background Technology

[0002] Bending limiters are essential equipment for submarine cable laying, protecting the cable during installation by limiting its bending degree and preventing damage from excessive bending. However, existing bending limiters are expensive, require adjustments to angle and position from the ship when used at sea, and are difficult to recycle, undoubtedly increasing costs for businesses. Summary of the Invention

[0003] The technical problem that this invention aims to solve is that existing bend limiters are expensive, can only be adjusted by the ship when used at sea, and are not easy to recycle and reuse, which undoubtedly increases costs for enterprises.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a recyclable submarine cable laying device, including a limiting cover, wherein the limiting cover includes a first outer cover and a second outer cover that are movably connected, and a snap-on fastening component is installed on the outer arc-shaped surface of the first outer cover and the second outer cover. A built-in quick separation mechanism is installed on the mounting surface of the second outer cover, and an external quick separation mechanism is installed at the connection end of the first outer cover and the second outer cover. An external centrifugal drive device is fixedly mounted on the outer surface of the first outer cover and the second outer cover.

[0005] The first outer cover movable connection end has a first movable frame with an integral structure, and the second outer cover movable connection end has a second movable frame that cooperates with the first movable frame. The first outer cover is movably connected to the second outer cover through the internal assembly shaft of the first movable frame and the second movable frame.

[0006] The snap-fit ​​fastening assembly includes an arc-shaped outer assembly frame fixed to the outer arc-shaped surfaces of the first outer cover and the second outer cover, and a locking buckle elastically fitted to the side wall of the arc-shaped outer assembly frame.

[0007] The second outer casing assembly surface is provided with a lateral assembly through hole for installing a built-in quick separation mechanism. The built-in quick separation mechanism includes a fixed assembly cylinder fixed inside the lateral assembly through hole, an internal telescopic control rod installed inside the fixed assembly cylinder, a limiting frame fixed inside the fixed assembly cylinder, an annular electromagnet installed on the inner side of the limiting frame, and an iron spring installed between the internal telescopic control rod and the annular electromagnet.

[0008] The first outer cover and the second outer cover are connected at the connection end with a circular guide hole for installing an external quick separation mechanism. The external quick separation mechanism includes an arc-shaped guide rod with both ends inserted into the circular guide hole, an external limiting head fixed at both ends of the arc-shaped guide rod, and compression springs installed on both sides of the arc-shaped guide rod.

[0009] The first and second outer covers are symmetrically provided with external sinking grooves on their outer surfaces. The external centrifugal drive device includes an outer assembly cover bolted to the opening of the external sinking groove, an electrically controlled centrifugal pump fixed inside the outer assembly cover by an internal assembly frame, a circular liquid extraction through hole at the center of the outer plane of the outer assembly cover, two arc-shaped liquid drainage through holes symmetrically provided on the arc-shaped outer surface of the outer assembly cover, and an arc-shaped electrically controlled sealing cover installed at the opening of the arc-shaped liquid drainage through holes.

[0010] A filter screen is fixedly installed at the outer opening position of the circular liquid extraction hole and the arc-shaped liquid drainage hole of the external assembly cover.

[0011] A pressure sensing and control module is fixedly mounted inside the outer opening of the lateral mounting through hole.

[0012] The inner opening of the circular guide hole is provided with a built-in recessed groove that cooperates with the external limiting head and the compression spring.

[0013] The arc-shaped outer assembly frame has a strip-shaped flip groove on its side wall. The locking buckle includes an external control arm movably mounted on the outer side of the arc-shaped outer assembly frame, a lateral flip block fixed on the side wall of the external control arm, a lateral lock fixed on the non-movable connection end of the external control arm, a built-in electromagnet installed on the inner side of the strip-shaped flip groove, and an iron spring piece installed between the lateral flip block and the built-in electromagnet.

[0014] The beneficial effects of this invention are:

[0015] (1) The recyclable submarine cable laying equipment of the present invention changes the connection method of the existing bending limiter and adopts a one-sided movable connection method. The screw fastening is changed to a snap fastening component controlled by a pressure sensor control module, which greatly facilitates installation, separation and recycling.

[0016] (2) After the snap-on fastening components are separated, the built-in quick separation mechanism and the external quick separation mechanism installed on the limiter will quickly take effect to prevent the limiter from jamming and improve the recycling efficiency.

[0017] (3) An external centrifugal drive device is installed on the outer side of the first outer cover and the second outer cover, so that the limiter can be quickly adjusted in position as needed, thereby improving functionality and operability.

[0018] (4) When recycling, steel wires are used to connect to the arc-shaped guide rod, which makes it easy to retract the enclosure after it is opened;

[0019] (5) By flipping the first outer cover and the second outer cover upwards, and in conjunction with the external centrifugal drive device, the overall recycling efficiency and stability can be improved;

[0020] (6) By adopting a detachable structural design, it is convenient for later maintenance and reduces the cost of use. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the internal structure in the unfolded state of this invention.

[0023] Figure 2 This is a schematic diagram of the external structure in the unfolded state of this invention.

[0024] Figure 3 This is a lateral schematic diagram of the closed state in this invention.

[0025] Figure 4 This is a partial schematic diagram of the snap-fit ​​fastening assembly in the closed state in this invention.

[0026] Figure 5 This is a schematic diagram of the internal structure of the built-in rapid separation mechanism in this invention. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The recyclable submarine cable laying equipment shown includes a limiting cover, which includes a first outer cover 1 and a second outer cover 2 that are movably connected. Both the outer arc-shaped surfaces of the first outer cover 1 and the second outer cover 2 are equipped with snap-on fastening components 3. The mounting surface of the second outer cover 1 is equipped with a built-in quick separation mechanism 4. The connecting end of the first outer cover 1 and the second outer cover 2 is equipped with an external quick separation mechanism 5. Both the outer surfaces of the first outer cover 1 and the second outer cover 2 are fixedly equipped with external centrifugal drive devices 6.

[0030] To facilitate the assembly, the first outer cover 1 has an integral first movable frame 7 at its movable connecting end, and the second outer cover 2 has a second movable frame 8 that mates with the first movable frame 7 at its movable connecting end. The first outer cover 1 is movably connected to the second outer cover 2 through the internal assembly shaft of the first movable frame 7 and the second movable frame 8.

[0031] To facilitate snap-fit ​​fastening, the snap-fit ​​fastening assembly 3 includes an arc-shaped outer assembly frame 31 fixed to the outer arc-shaped surface of the first outer cover 1 and the second outer cover 2, and a locking snap 32 elastically fitted to the side wall of the arc-shaped outer assembly frame 31.

[0032] When the first outer cover 1 and the second outer cover 2 are fitted onto the submarine cable, and the opening and closing ends are closed, the locking buckles 32 on the first outer cover 1 and the second outer cover 2 interlock with each other, thereby closing the opening and closing ends of the first outer cover 1 and the second outer cover 2.

[0033] To facilitate telescopic control, a lateral assembly through hole is provided on the assembly surface of the second outer casing 2 for installing the built-in quick separation mechanism 4. The built-in quick separation mechanism 4 includes a fixed assembly cylinder 41 fixed inside the lateral assembly through hole, an internal telescopic control rod 42 installed inside the fixed assembly cylinder 41, a limiting frame 43 fixed inside the fixed assembly cylinder 41, an annular electromagnet 44 installed on the inner side of the limiting frame 43, and an iron spring 45 installed between the internal telescopic control rod 42 and the annular electromagnet 44.

[0034] The annular electromagnet 44 is not a technology of the prior art. It is started by energizing, and then controls the iron spring 45 to contract, thereby controlling the internal telescopic control rod 42 to extend outward, and controlling the separation of one end of the first outer cover 1 and the second outer cover 2.

[0035] To facilitate the flipping elastic compression, the connecting end of the first outer cover 1 and the second outer cover 2 is provided with a circular guide hole for installing the external quick separation mechanism 5. The external quick separation mechanism 5 includes an arc-shaped guide rod 51 with both ends inserted into the circular guide hole, an external limiting head 52 fixed at both ends of the arc-shaped guide rod 51, and a compression spring 53 installed on both sides of the arc-shaped guide rod 51.

[0036] The compression spring 53 compresses the first outer cover 1 and the second outer cover 2 outward from both sides of the arc-shaped guide rod 51, which facilitates the opening and separation of the first outer cover 1 and the second outer cover 2 at one end.

[0037] To facilitate the adjustment of the equipment's position in the water, external sinking grooves are symmetrically provided on the outer surfaces of the first outer casing 1 and the second outer casing 2. The external centrifugal drive device 6 includes an outer assembly casing 61 bolted to the opening of the external sinking groove, an electrically controlled centrifugal pump 62 fixed inside the outer assembly casing 61 by an internal assembly frame, a circular liquid extraction through hole 63 opened at the center of the outer plane of the outer assembly casing 61, two arc-shaped liquid discharge through holes 64 symmetrically opened on the arc-shaped outer surface of the outer assembly casing 61, and an arc-shaped electrically controlled sealing casing 65 installed at the opening of the arc-shaped liquid discharge through holes 64.

[0038] Both the electrically controlled centrifugal pump 62 and the arc-shaped electrically controlled sealing cover 65 are existing technologies. The electrically controlled centrifugal pump 62, through high-speed rotation, draws seawater in through the circular suction port 63 and then discharges it through the arc-shaped discharge port 64. The arc-shaped electrically controlled sealing cover 65 controls the opening and closing of the arc-shaped discharge port 64, thereby changing the direction of the discharge flow and facilitating position adjustment. When both arc-shaped discharge ports 64 are open simultaneously, the external assembly cover 61 is controlled to move towards the circular suction port 63; when one arc-shaped discharge port 64 is open, the external assembly cover 61 is controlled to move towards both the circular suction port 63 and the arc-shaped discharge port 64 in its closed state. The arc-shaped electrically controlled sealing cover 65 consists of an adjusting motor installed on the side wall of the outer assembly cover 61 and an arc-shaped closing plate slidably installed at the opening position inside the arc-shaped drain hole 64. The adjusting motor meshes with the tooth surface inside the arc-shaped closing plate through the adjusting gear on the adjusting shaft, thereby adjusting the position of the arc-shaped closing plate.

[0039] To prevent external impurities from being sucked into the outer assembly cover 61, a filter screen 66 is fixedly installed at the outer opening position of the circular liquid extraction through hole 63 and the arc-shaped liquid drainage through hole 64 of the outer assembly cover 61.

[0040] The filter screen 66 is fixedly installed on the outer opening of the circular liquid extraction hole 63 and the arc-shaped liquid discharge hole 64 by bolts.

[0041] To monitor depth and facilitate automatic control, a pressure sensing and control module 9 is fixedly mounted inside the outer opening of the lateral mounting through hole.

[0042] The pressure sensing control module 9 is existing technology. It determines the depth in the sea by sensing external pressure. When the set depth is reached, the pressure sensing control module 9 controls the snap-on fastening component 3 to separate, and then works with the built-in quick separation mechanism 4 and the external quick separation mechanism 5 to quickly separate.

[0043] To improve the space utilization of the internal submarine cable assembly chamber, an internal sinking groove is provided at the inner opening of the circular guide hole to cooperate with the external limiting head 52 and the compression spring 53.

[0044] To facilitate lateral tilting adjustment, a strip-shaped tilting groove 10 is provided on the side wall of the arc-shaped outer assembly frame 31. The locking buckle 32 includes an external control arm 321 movably mounted on the outer side of the arc-shaped outer assembly frame 31, a lateral tilting block 322 fixed on the side wall of the external control arm 321, a lateral lock 323 fixed on the non-movable connection end of the external control arm 321, a built-in electromagnet 324 installed on the inner side of the strip-shaped tilting groove 10, and an iron spring piece 325 installed between the lateral tilting block 322 and the built-in electromagnet 324.

[0045] The built-in electromagnet 324 is existing technology. When energized, it controls the iron spring 325 to retract, thereby controlling the lateral flipping block 322 to flip to one side, so that the lateral latches 323 on the outside of the first outer cover 1 and the second outer cover 2 are separated. At this time, the first outer cover 1 and the second outer cover 2 will open, thereby separating from the submarine cable.

[0046] Working principle: The submarine cable is installed between the first outer casing 1 and the second outer casing 2, using a snap-fit ​​fastening assembly 3, such as... Figure 4 In this state, the devices interlock to close, limiting the submarine cable between the first outer casing 1 and the second outer casing 2. Then, the device descends to the seabed. The pressure sensing and control module 9 determines the designated position based on the external water pressure and controls the snap-fit ​​fastening component 3 to close. At this time, the iron spring 325 pushes the lateral flipping block 322 outward, causing the lateral lock 323 to separate. Then, in conjunction with the built-in quick separation mechanism 4 and the external quick separation mechanism 5, the first outer casing 1 and the second outer casing 2 are pushed outward to separate, thereby separating the device from the submarine cable.

[0047] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A recyclable submarine cable laying device, comprising a limiting enclosure, characterized in that: The limiting cover includes a first outer cover (1) and a second outer cover (2) that are movably connected. A snap-on fastening assembly (3) is installed on the outer arc surface of the first outer cover (1) and the second outer cover (2). A built-in quick separation mechanism (4) is installed on the mounting surface of the second outer cover (2). An external quick separation mechanism (5) is installed at the connection end of the first outer cover (1) and the second outer cover (2). An external centrifugal drive device (6) is fixedly mounted on the outer surface of the first outer cover (1) and the second outer cover (2). The second outer cover (2) has a lateral assembly through hole for installing the built-in quick separation mechanism (4) on its assembly surface. The built-in quick separation mechanism (4) includes a fixed assembly cylinder (41) fixed inside the lateral assembly through hole, an internal telescopic control rod (42) installed inside the fixed assembly cylinder (41), a limiting frame (43) fixed inside the fixed assembly cylinder (41), an annular electromagnet (45) installed on the inner side of the limiting frame (43), and an iron spring (46) installed between the internal telescopic control rod (42) and the annular electromagnet. The first outer cover (1) and the second outer cover (2) are symmetrically provided with external sinking grooves. The external centrifugal drive device (6) includes an outer assembly cover (61) bolted to the opening of the external sinking groove, an electrically controlled centrifugal pump (62) fixed inside the outer assembly cover (61) by an internal assembly frame, a circular liquid extraction through hole (63) opened at the center of the outer plane of the outer assembly cover (61), two arc-shaped liquid drainage through holes (64) symmetrically opened on the arc-shaped outer surface of the outer assembly cover (61), and an arc-shaped electrically controlled sealing cover (65) installed at the opening of the arc-shaped liquid drainage through hole (64).

2. The recyclable submarine cable laying equipment according to claim 1, characterized in that: The first outer cover (1) has an integral first movable frame (7) at its movable connection end, and the second outer cover (2) has a second movable frame (8) that cooperates with the first movable frame (7). The first outer cover (1) is movably connected to the second outer cover (2) through the internal assembly shaft of the first movable frame (7) and the second movable frame (8).

3. The recyclable submarine cable laying equipment according to claim 1, characterized in that: The snap-fit ​​fastening assembly (3) includes an arc-shaped outer assembly frame (31) fixed on the outer arc-shaped surface of the first outer cover (1) and the second outer cover (2) and a locking buckle (32) elastically fitted on the side wall of the arc-shaped outer assembly frame (31).

4. The recyclable submarine cable laying equipment according to claim 1, characterized in that: The first outer cover (1) and the second outer cover (2) are connected by a circular guide hole for installing an external quick separation mechanism (5). The external quick separation mechanism (5) includes an arc-shaped guide rod (51) with both ends inserted into the circular guide hole, an external limiting head (52) fixed at both ends of the arc-shaped guide rod (51), and compression springs (53) installed on both sides of the arc-shaped guide rod (51).

5. The recyclable submarine cable laying equipment according to claim 1, characterized in that: A filter screen (66) is fixedly installed at the outer opening position of the circular liquid extraction hole (63) and the arc-shaped liquid drainage hole (64) of the external assembly cover (61).

6. The recyclable submarine cable laying equipment according to claim 1, characterized in that: The pressure sensing and control module (9) is fixedly mounted inside the outer opening of the lateral mounting through hole.

7. A recyclable submarine cable laying device according to claim 4, characterized in that: The inner opening of the circular guide hole is provided with a built-in recessed groove that cooperates with the external limiting head (52) and the compression spring (53).

8. A recyclable submarine cable laying device according to claim 3, characterized in that: The arc-shaped outer assembly frame (31) has a strip-shaped flip groove (10) on its side wall. The locking buckle (32) includes an external control arm (321) movably mounted on the outer side of the arc-shaped outer assembly frame (31), a lateral flip block (322) fixed on the side wall of the external control arm (321), a lateral lock (323) fixed on the non-movable connection end of the external control arm (321), a built-in electromagnet (324) installed on the inner side of the strip-shaped flip groove (10), and an iron spring piece (325) installed between the lateral flip block (322) and the built-in electromagnet (324).

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