A wired submarine cable laying equipment fast recovery device

Abstract

The application relates to the technical field of submarine cable laying equipment, in particular to a wired submarine cable laying equipment quick recovery device, which comprises a bending limiter body, the bending limiter body comprises a first arc-shaped clamping arm and a second arc-shaped clamping arm which are movably assembled. The wired submarine cable laying equipment quick recovery device adopts a split structure design, can quickly install and separate the submarine cable through electromagnetic control, greatly improves the recovery utilization rate, and reduces the use cost; through safety setting, quick separation can be carried out in a burst state, and the safety is improved; through detection of the internal pressure, the magnetic control type lock catch is automatically started, and the operation is more convenient; the elastic electromagnetic separation and combination mechanism is used, the magnetic control type closing is facilitated, the opening is easier, and the submarine cable is avoided from being clamped.

Description

Technical Field

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

[0002] Bending limiters are essential equipment for submarine cable laying, used to protect the cable during installation and limit its bending degree to prevent damage from excessive bending. However, currently available bending limiters for submarine cables are expensive, difficult to operate, and not recyclable, significantly increasing costs for submarine cable companies. Summary of the Invention

[0003] The technical problem to be solved by this invention is that the bending limiters currently used in submarine cables are expensive, difficult to operate, and cannot be recycled or reused.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a rapid recovery device for wired submarine cable laying equipment, including a bending limiter body, the bending limiter body including a first arc-shaped clamping arm and a second arc-shaped clamping arm that are movably assembled, the first arc-shaped clamping arm and the second arc-shaped clamping arm are both provided with mutually symmetrical arc-shaped telescopic holes, a magnetically controlled lock is movably assembled inside the arc-shaped telescopic holes, and an elastic electromagnetic opening and closing mechanism is installed on the connecting surface of the first arc-shaped clamping arm and the second arc-shaped clamping arm.

[0005] The first arc-shaped clamping arm and the second arc-shaped clamping arm have lateral connecting brackets that protrude outwards at their connecting ends. The lateral connecting brackets of the first arc-shaped clamping arm and the second arc-shaped clamping arm are movably assembled through an internal assembly pivot.

[0006] The clamping surfaces of the first and second arc-shaped clamping arms are provided with symmetrically arranged lateral storage grooves, and the elastic electromagnetic opening and closing mechanism is fixedly installed inside the lateral storage grooves.

[0007] The magnetically controlled latch is misaligned and installed inside the arc-shaped telescopic hole inside the first and second arc-shaped clamping arms.

[0008] The arc-shaped telescopic hole has an internal fixed chamber inside, and the magnetic lock includes an arc-shaped telescopic rod that is slidably installed in the arc-shaped telescopic hole, an internal electromagnet that is fixed inside the internal fixed chamber, and an iron spring installed between the arc-shaped telescopic rod and the internal electromagnet.

[0009] The arc-shaped telescopic rod has a lateral telescopic groove on its side wall, and an electromagnetic telescopic locking block is elastically fitted inside the lateral telescopic groove. The inner side of the arc-shaped telescopic hole has a built-in limiting groove that corresponds to the electromagnetic telescopic locking block.

[0010] The elastic electromagnetic opening and closing mechanism includes a control electromagnet fixed inside the lateral receiving groove of the first arc-shaped clamping arm, a lateral fixing frame installed inside the lateral receiving groove of the second arc-shaped clamping arm, and a central control spring installed between the control electromagnet and the lateral fixing frame.

[0011] Pressure sensing and control modules are fixedly mounted on the inner arc-shaped surfaces of both the first and second arc-shaped clamping arms.

[0012] The outer surfaces of the first and second arc-shaped clamping arms are fixedly equipped with external lifting points that cooperate with the recovery steel cable, and the inner surfaces of the external lifting points are equipped with tension sensors for monitoring the tension.

[0013] Both the first and second arc-shaped clamping arms have arc-shaped external limiting grooves on their outer surfaces.

[0014] The beneficial effects of this invention are: (1) The wired submarine cable laying equipment quick recovery device of the present invention adopts a split structure design and can quickly install and separate submarine cables through electromagnetic control, which greatly improves its recycling rate and reduces the cost of use. (2) By adopting safety features, rapid separation can be carried out in case of an emergency, thereby improving safety; (3) By detecting the internal pressure, the magnetic lock can be automatically started, making operation more convenient; (4) The use of the elastic electromagnetic opening and closing mechanism not only facilitates magnetic control closure, but also makes it easier to open, avoiding getting stuck on the submarine cable; (5) The elastic telescopic locking design can greatly improve the loosening and detachment effect after assembly; (6) The entire control mechanism adopts an embedded structure design, which does not occupy the assembly end and external space, making the structure more compact, the layout more reasonable, and safe and durable. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0018] Figure 3 This is a partial schematic diagram of the interior of the arc-shaped telescopic hole in this invention.

[0019] Figure 4 This is a schematic diagram of the recycling state in this invention.

[0020] Figure 5This is a schematic diagram of the internal structure of the assembly position of the elastic electromagnetic splitting and opening mechanism in this invention. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The device shown is a rapid retrieval device for wired submarine cable laying equipment, including a bending limiter body. The bending limiter body includes a first arc-shaped clamping arm 1 and a second arc-shaped clamping arm 2 that are movably assembled. The first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are both provided with symmetrical arc-shaped telescopic holes 3. A magnetic lock 4 is movably assembled inside the arc-shaped telescopic holes 3. An elastic electromagnetic opening and closing mechanism 5 is installed on the connecting surface of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2.

[0024] To facilitate the movable assembly, the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 have outwardly protruding lateral connecting brackets 6 at their connecting ends. The first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are movablely assembled via an internal assembly pivot.

[0025] The modular assembly makes opening and closing easier, while reducing loading and unloading costs and difficulties, and facilitating recycling and reuse.

[0026] To facilitate lateral assembly, symmetrically arranged lateral storage grooves are provided on the clamping surfaces of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2, and the elastic electromagnetic splitting mechanism 5 is fixedly installed inside the lateral storage grooves.

[0027] To facilitate locking and improve clamping stability, the magnetic lock 4 is misaligned and installed inside the arc-shaped telescopic hole 3 inside the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2.

[0028] To facilitate internal assembly, an internal fixed chamber is provided inside the arc-shaped telescopic hole 3. The magnetic lock 4 includes an arc-shaped telescopic rod 41 that is slidably installed in the arc-shaped telescopic hole 3, an internal electromagnet 42 that is fixed inside the internal fixed chamber, and an iron spring 43 installed between the arc-shaped telescopic rod 41 and the internal electromagnet 42.

[0029] The internal electromagnet 42 is existing technology. By energizing it, the iron spring 43 is contracted, which in turn drives the arc-shaped telescopic rod 41 to extend and retract inside the arc-shaped telescopic hole 3, making it easy to lock and separate.

[0030] To accommodate lateral telescopic limiting, a lateral telescopic groove 44 is provided on the side wall of the arc-shaped telescopic rod 41. An electromagnetic telescopic locking block 45 is elastically fitted inside the lateral telescopic groove 44. An internal limiting groove 31 corresponding to the electromagnetic telescopic locking block 45 is provided on the inner side of the arc-shaped telescopic hole 3.

[0031] The electromagnetic telescopic lock block 45 is existing technology. By energizing, the electromagnetic telescopic lock block 45 is controlled to retract into the lateral telescopic groove 44. After de-energizing, the retraction spring inside the electromagnetic telescopic lock block 45 controls the electromagnetic telescopic lock block 45 to insert into the built-in limiting groove 31, and inserts and limits the arc-shaped telescopic rod 41 into the arc-shaped telescopic hole 3. The magnetic lock 4 inside the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 adopts a staggered installation layout, thereby improving the stability and firmness after locking.

[0032] To facilitate the magnetically controlled elastic opening and closing, the elastic electromagnetic opening and closing mechanism 5 includes a control electromagnet 51 fixed inside the lateral receiving groove of the first arc-shaped clamping arm 1, a lateral fixing frame 52 installed inside the lateral receiving groove of the second arc-shaped clamping arm 2, and a central control spring 53 installed between the control electromagnet 51 and the lateral fixing frame 52.

[0033] The central control spring 53 is extended and retracted by the control electromagnet 51 using existing technology. The extension of the central control spring 53 controls the extension of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2, which facilitates separation. The retraction of the central control spring 53 controls the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 to clamp the cable to the outside.

[0034] In order to monitor the adjustment angle of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 and facilitate the automatic control of the magnetic lock 4, pressure sensing control modules 7 are fixedly installed on the inner arc-shaped surfaces of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2.

[0035] All pressure sensing control modules 7 are existing technologies. By monitoring the clamping surface of the submarine cable, the installation status can be determined. When the pressure sensing control modules 7 located at the open end simultaneously contact the outer wall of the submarine cable and the applied force is consistent and unchanged, it proves that the installation is complete. Then, the magnetic lock 4 is activated to fix and limit the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2.

[0036] To ensure safety during hoisting and lifting, external lifting points 8 that cooperate with the recovery steel cable are fixedly mounted on the outer surfaces of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2. A tension sensor 9 for monitoring the tension is installed on the inner surface of the external lifting point 8.

[0037] The tension sensor 9 is existing technology. When the tension exceeds 2 tons, the tension sensor 9 will automatically control the magnetic lock 4 and the electromagnetic telescopic lock block 45 to start and separate from the inside of the side telescopic groove 44. Then the arc-shaped telescopic rod 41 retracts into the inside of the arc-shaped telescopic hole 3. At this time, the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 quickly separate and will automatically separate from the suspended submarine cable.

[0038] To facilitate external installation and functional expansion, arc-shaped external limiting grooves 10 are provided on the outer surfaces of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2.

[0039] A bracket can be fixed inside the arc-shaped outer limiting groove 10 as needed to fix it, or an inflation mechanism can be sleeved on the arc-shaped outer limiting groove 10 to reduce energy consumption during recycling.

[0040] 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 rapid retrieval device for wired submarine cable laying equipment, comprising a bending limiter body, characterized in that: The bending limiter body includes a first arc-shaped clamping arm (1) and a second arc-shaped clamping arm (2) that are movably assembled. The first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) are both provided with symmetrical arc-shaped telescopic holes (3). A magnetic lock (4) is movably assembled inside the arc-shaped telescopic hole (3). An elastic electromagnetic opening and closing mechanism (5) is installed on the connecting surface of the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2). The magnetic lock (4) is misaligned and installed in the arc-shaped telescopic hole (3) inside the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2); The arc-shaped telescopic hole (3) has an internal fixed chamber inside. The magnetic lock (4) includes an arc-shaped telescopic rod (41) that is slidably installed in the arc-shaped telescopic hole (3), an internal electromagnet (42) that is fixed inside the internal fixed chamber, and an iron spring (43) installed between the arc-shaped telescopic rod (41) and the internal electromagnet (42). The arc-shaped telescopic rod (41) has a lateral telescopic groove (44) on its side wall. An electromagnetic telescopic lock block (45) is elastically assembled inside the lateral telescopic groove (44). The arc-shaped telescopic hole (3) has an internal limiting groove (31) that cooperates with the electromagnetic telescopic lock block (45) on its inner side. The outer surfaces of the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) are fixedly equipped with external lifting points (8) that cooperate with the recovery steel cable, and the inner surface of the external lifting points (8) is equipped with a tension sensor (9) for monitoring the tension.

2. The rapid retrieval device for wired submarine cable laying equipment according to claim 1, characterized in that: The first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) have a lateral connecting bracket (6) protruding outward on the connecting end. The lateral connecting bracket (6) of the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) are movably assembled through an internal assembly shaft.

3. The rapid retrieval device for wired submarine cable laying equipment according to claim 1, characterized in that: The clamping surfaces of the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) are provided with symmetrically arranged lateral storage grooves, and the elastic electromagnetic splitting and closing mechanism (5) is fixedly installed inside the lateral storage grooves.

4. The rapid retrieval device for wired submarine cable laying equipment according to claim 3, characterized in that: The elastic electromagnetic splitting mechanism (5) includes a control electromagnet (51) fixed inside the lateral receiving groove of the first arc-shaped clamping arm (1), a lateral fixing frame (52) installed inside the lateral receiving groove of the second arc-shaped clamping arm (2), and a central control spring (53) installed between the control electromagnet (51) and the lateral fixing frame (52).

5. The rapid retrieval device for wired submarine cable laying equipment according to claim 1, characterized in that: Pressure sensing and control modules (7) are fixedly assembled on the inner arc surfaces of the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2).

6. The rapid retrieval device for wired submarine cable laying equipment according to claim 1, characterized in that: The first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) are both provided with arc-shaped external limiting grooves (10) on their outer surfaces.

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