An anchoring device for fixing submarine cables

Abstract

The present application discloses an anchoring device for fixing submarine cables. The anchoring device includes a top plate, a clamping assembly, a piston assembly, and at least a pair of anchoring piles. The anchoring piles are connected to the top plate. The clamping assembly is arranged between two paired anchoring piles. The clamping assembly is used for clamping the cable, and the clamping assembly is connected to the anchoring piles through a linkage mechanism. The piston assembly is arranged inside the anchoring piles. The linkage mechanism is connected to the piston assembly and can drive the piston assembly to reciprocate in a first direction parallel to the length direction of the anchoring piles. The anchoring device is fixed to the seabed through the anchoring piles. The top plate can divert the water flow. The clamping assembly clamps and fixes the cable. The clamping assembly can transfer the energy of the cable fluctuation to the piston assembly inside the anchoring piles through the linkage mechanism. The piston assembly reciprocates to dissipate the energy of the cable fluctuation and further anchor the anchoring piles to the seabed, improving the stability of the cable laying on the seabed. The present application can be widely applied to the technical field of submarine cable laying.

Description

Technical Field

[0001] This application relates to the technical field of submarine cable laying, and particularly relates to an anchoring device for fixing submarine cables. Background Art

[0002] With the wide application and rapid development of new energy such as offshore wind power, submarine cables have become an important channel for power supply to offshore platforms and islands, transmission of marine clean energy, cross-regional power transmission, and global communication. Fault detection and repair of submarine cables are extremely difficult, with a long repair period and high repair costs. It will also have a serious impact on power supply, communication transmission, etc., causing relatively serious social and economic losses. Therefore, the laying and protection of submarine cables are crucial.

[0003] In related technologies, the laying and protection of submarine cables mainly rely on solutions such as concrete block counterweight, HDPE casing wrapping, and rigid steel frame fixing. For example, by increasing the weight of the blocks to resist water flow scouring, but long-term monitoring shows that the seabed undercurrent will gradually hollow out the bottom support layer of the blocks, resulting in the inclination and failure of the protection structure. Or using corrugated HDPE casings to fully wrap the cables. Although it can relieve local scouring, there are still problems of vortex-induced vibration on the contact surface between the casing and the seabed, which is likely to cause cracking of the casing joints. Or using a spring shock-absorbing anchoring device, which buffers the water flow impact force through a spring group, but the buried depth of its anchor pile is fixed and cannot adapt to the change in the cable suspension amount caused by the migration of seabed sediments.

[0004] These technologies have defects: the passive protection mode relies on the self-weight of the structure or rigid connection and is difficult to cope with dynamic seabed geomorphic changes; it does not effectively utilize the water flow energy to achieve self-adaptive adjustment, resulting in high maintenance costs; there is a lack of mechanical linkage between the protection device and the cable body, and the vibration energy of the cable is wasted or even converted into a structural damage factor. Therefore, it is urgent to propose a reliable and stable solution for fixing and protecting submarine cables. Summary of the Invention

[0005] To solve at least one of the above technical problems, this application provides an anchoring device for fixing submarine cables, and the technical solution adopted is as follows.

[0006] The anchoring device for fixing submarine cables provided by this application includes a top plate, a clamping assembly, a piston assembly, and at least a pair of anchor piles. The top of the anchor pile is fixedly connected to the side of the top plate facing the seabed; the clamping assembly is arranged between two paired anchor piles, and the clamping assembly is used for clamping the cable. The clamping assembly is connected to the anchor pile through a link mechanism; the anchor pile is hollow, the piston assembly is arranged inside the anchor pile, and the link mechanism connects the piston assembly and can drive the piston assembly to reciprocate in a first direction parallel to the length direction of the anchor pile.

[0007] In some embodiments of the present application, the piston assembly includes a piston body and a cover plate assembly. The piston body is provided with a communication hole that penetrates the piston body along the thickness direction of the piston body. The cover plate assembly is disposed on one side of the piston body facing the top of the anchoring pile, and one side of the cover plate assembly facing the top of the anchoring pile can withstand pressure and close the communication hole.

[0008] In some embodiments of the present application, the cover plate assembly includes a cover plate body and a cover plate support. The cover plate support is disposed on the side surface of the piston body, and the cover plate body is movably disposed on the cover plate support. The cover plate body can move along a first direction closer to the piston body and fit against the side surface of the piston body.

[0009] In some embodiments of the present application, a first one-way toothed structure is hierarchically provided on the outer side wall of the anchoring pile, and the first one-way toothed structure is used to prevent the anchoring pile from being pulled out of the seabed.

[0010] In some embodiments of the present application, the clamping assembly includes clamping jaw arms, a clamping jaw linkage structure, and a clamping jaw support. The linkage mechanism is hinged to the clamping jaw support. The clamping jaw arms are provided in two. The clamping jaw linkage structure is located between the two clamping jaw arms. The clamping jaw linkage structure is disposed on the clamping jaw support. The clamping jaw arms are respectively hinged to the clamping jaw support and the clamping jaw linkage structure. The clamping jaw linkage structure can move along a first direction closer to the top plate on the clamping jaw support and drive the two clamping jaw arms to clamp the cable.

[0011] In some embodiments of the present application, the clamping jaw linkage structure includes a clamping jaw linkage support and two clamping jaw linkage rods. One end of the clamping jaw linkage rod is hinged to the clamping jaw linkage support and the other end is hinged to the clamping jaw arm. A locking structure is provided between the clamping jaw linkage support and the clamping jaw support to prevent the clamping jaw linkage support from moving away from the top plate.

[0012] In some embodiments of the present application, a second one-way toothed structure is provided on the outer side wall of one end of the clamping jaw linkage support for connecting to the clamping jaw support. The clamping jaw support is provided with a mounting hole for mounting the clamping jaw linkage support. The mounting hole extends along the first direction. At least one elastic limiting structure is provided at least at the upper end port of the two ends of the mounting hole. The end of the elastic limiting structure can exert a resistance on the second one-way toothed structure and prevent the clamping jaw linkage support from moving away from the top plate.

[0013] In some embodiments of the present application, the jaw bracket is movably connected to the top plate through a guiding sliding structure and a guiding rod. One of the guiding sliding structure and the guiding rod is arranged on the side of the top plate facing the seabed, and the other is arranged on the jaw bracket. The guiding rod extends in a first direction, and the guiding sliding structure is movably sleeved on the outer sidewall of the guiding rod.

[0014] In some embodiments of the present application, the link mechanism includes a first slider, a first link and a second link. The first slider is hinged to the clamping assembly. The first slider is sleeved on the outer sidewall of one end of the first link. The other end of the first link is hinged to one end of the second link. The other end of the second link is hinged to the piston assembly. The first link is hinged to the sidewall of the anchoring pile, and the hinged position of the first link and the anchoring pile is between the first slider and the second link.

[0015] In some embodiments of the present application, the top plate is arranged in a shape arched away from the seabed.

[0016] The present application has at least the following beneficial effects: The anchoring device is fixed to the seabed through the anchoring pile. The top plate can divert the water flow. The clamping assembly clamps and fixes the cable. The clamping assembly can transmit the energy of the cable fluctuation to the piston assembly inside the anchoring pile through the link mechanism. The piston assembly reciprocates to dissipate the energy of the cable fluctuation, and further anchors the anchoring pile to the seabed, improving the stability of the cable laying on the seabed. The present application can be widely applied to the technical field of submarine cable laying.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further demonstrates the present application in conjunction with the drawings and embodiments. It should be noted that the embodiments shown in the following drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0019] Figure 1 It is a structural diagram of the anchoring device. In the figure, the X-axis is the third direction, the Y-axis is the second direction, and the Z-axis is the first direction.

[0020] Figure 2 It is a structural diagram of the anchoring device.

[0021] Figure 3 It is a structural diagram of the clamping assembly, the link mechanism and a pair of anchoring piles.

[0022] Figure 4 It is a structural diagram of the clamping assembly.

[0023] Figure 5 is Figure 4 a sectional view of the middle structure.

[0024] Figure 6 is a structural diagram of the piston assembly.

[0025] Figure 7 is a sectional view of the piston assembly and the anchoring pile.

[0026] Reference numerals: 1000, clamping assembly; 1100, jaw arm; 1200, jaw bracket; 1201, metal shrapnel; 1301, jaw linkage bracket; 1302, jaw linkage rod; 1303, second one-way toothed structure; 1401, guiding sliding structure; 1402, guiding rod; 2000, anchoring pile; 2001, first one-way toothed structure; 2100, piston assembly; 2101, piston body; 2102, cover plate body; 2103, cover plate bracket; 2104, first vertical rod; 2105, communication hole; 2201, connecting rod bracket; 3000, top plate; 4000, connecting rod mechanism; 4100, first slider; 4201, first connecting rod; 4202, second connecting rod; 4301, first support rod; 4302, second support rod. Detailed implementation manners

[0027] The following Figures 1 to 7 describes the embodiments of the present application in detail, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0028] In the description of the present application, it should be understood that if terms such as "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0029] In the description of the present application, the meaning of "several" is more than one, the meaning of "multiple" is more than two, "greater than", "less than", "exceeding", etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present application, unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0031] In the description of the present application, if there are descriptions of reference terms such as "one embodiment", "some embodiments", "one example", "some examples", "some embodiments", "schematic embodiments", "examples", "specific examples", "some examples", etc., it means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0032] The present application relates to an anchoring device for fixing submarine cables. The anchoring device includes a clamping assembly 1000, an anchoring pile 2000, and a top plate 3000. The clamping assembly 1000 is used for clamping the cable. The clamping assembly 1000 is provided as at least one, the anchoring pile 2000 is provided as at least a pair, and one clamping assembly 1000 corresponds to a pair of anchoring piles 2000. The top of the anchoring pile 2000 is fixedly connected to the side of the top plate 3000 facing the seabed. The clamping assembly 1000 is arranged between two paired anchoring piles 2000, and the clamping assembly 1000 is connected to the anchoring pile 2000 through a link mechanism 4000.

[0033] Two paired anchoring piles 2000 are spaced apart along a second direction on the lower side of the top plate 3000, and multiple pairs of anchoring piles 2000 are spaced apart along a third direction perpendicular to the second direction. Correspondingly, multiple clamping assemblies 1000 are spaced apart along the third direction. The cable extends along the third direction, and multiple clamping assemblies 1000 grip the cable at intervals in the third direction, and the cable is fixed to the seabed by using the anchoring piles 2000.

[0034] It should be noted that the anchoring device realizes grasping and anchoring through a mechanically linked structure, avoiding electromagnetic interference, and can utilize the top plate 3000 to relieve the impact of water flow.

[0035] Specifically, the anchoring device includes a piston assembly 2100. The anchoring pile 2000 is hollow, the piston assembly 2100 is arranged inside the anchoring pile 2000, and the linkage mechanism 4000 is connected to the piston assembly 2100. When the clamping assembly 1000 moves up and down, the linkage mechanism 4000 can drive the piston assembly 2100 to reciprocate in a first direction parallel to the length direction of the anchoring pile 2000.

[0036] It can be understood that when the cable fluctuates under the influence of water flow at the seabed, the cable drives the clamping assembly 1000 to fluctuate. The clamping assembly 1000 transmits the fluctuation to the piston assembly 2100 through the linkage mechanism 4000, and then the piston assembly 2100 reciprocates up and down. The anchoring device can achieve a good protection mechanism through the mechanical linkage composed of the clamping assembly 1000, the linkage mechanism 4000 and the piston assembly 2100. On the one hand, the anchoring device can convert the fluctuation energy of the cable into the force for continuously pressing down the anchoring pile 2000 and anchoring it to the seabed by using the piston assembly 2100, converting the kinetic energy of water flow into the anchoring force to enhance the anchoring strength of the anchoring pile 2000. On the other hand, the anchoring device can dissipate the fluctuation energy of the cable by using the piston assembly 2100 to form a dynamic adaptive mechanism, so that the cable is stable at the seabed and the stability of the cable laying at the seabed is enhanced.

[0037] In some embodiments, the piston assembly 2100 includes a piston body 2101. The outer circumferential side wall of the piston body 2101 contacts the inner side wall of the anchoring pile 2000, and the piston body 2101 can reciprocate up and down in the first direction in the anchoring pile 2000. It can be understood that the linkage mechanism 4000 is connected to the piston body 2101.

[0038] The piston body 2101 is provided with a communication hole 2105, and the communication hole 2105 penetrates the piston body 2101 along the thickness direction of the piston body 2101. Specifically, the communication hole 2105 forms ports on both the upper end surface and the lower end surface of the piston body 2101, so that the cavity below the piston body 2101 in the anchoring pile 2000 communicates with the outside through the communication hole 2105.

[0039] Furthermore, the piston assembly 2100 includes a cover plate assembly which is disposed on one side of the piston body 2101 facing the top of the anchoring pile 2000. The side of the cover plate assembly facing the top of the anchoring pile 2000 can withstand pressure and close the communication hole 2105. The piston assembly 2100 forms a one-way piston structure by using the cover plate assembly. Specifically, the cover plate assembly is located on the upper side end face of the piston body 2101. When the piston assembly 2100 moves upward in the first direction, the cover plate assembly can close the port of the communication hole 2105 on the upper end face of the piston body 2101 under the external pressure, so that the cavity below the piston body 2101 in the anchoring pile 2000 becomes a closed cavity. And as the piston body 2101 gradually rises, the closed cavity gradually forms a negative pressure cavity, forming a negative pressure adsorption effect. The anchoring pile 2000 and the piston assembly 2100 realize an increase in the anchoring strength and the dissipation of the cable fluctuation energy by using the negative pressure cavity.

[0040] In some examples, the cover plate assembly includes a cover plate body 2102 which can move along the first direction close to the piston body 2101 and fit on the side surface of the piston body 2101. It can be understood that the cover plate body 2102 can close the port of the communication hole 2105 on the upper side end face of the piston body 2101.

[0041] When the piston assembly 2100 moves upward in the first direction, the external seawater exerts pressure on the upper side surface of the cover plate body 2102 to make the cover plate body 2102 close to and fit on the upper side end face of the piston body 2101. When the piston assembly 2100 moves downward in the first direction, the cover plate body 2102 can move upward relative to the piston body 2101, so that the cover plate body 2102 is separated from the upper side end face of the piston body 2101, and the port of the communication hole 2105 on the upper side end face of the piston body 2101 is opened.

[0042] In some examples, the cover plate assembly includes a cover plate bracket 2103 which is disposed on the side surface of the piston body 2101. The cover plate body 2102 is fixedly connected to the cover plate bracket 2103. The cover plate bracket 2103 can move along the first direction close to the piston body 2101 to make the cover plate body 2102 close to and fit on the side surface of the piston body 2101. Further, at least two first vertical rods 2104 are disposed on the upper side end face of the piston body 2101, and the first vertical rods 2104 are equally spaced along the circumference. At least two through holes are equally spaced along the circumference on the cover plate bracket 2103, so that the cover plate bracket 2103 is sleeved on the first vertical rods 2104. It can be understood that the cover plate bracket 2103 moves up and down along the first vertical rods 2104 to make the cover plate bracket 2103 and the cover plate body 2102 move away from or close to the piston body 2101.

[0043] Furthermore, a compression spring is sleeved on the first vertical rod 2104 , and the compression spring is located on the upper side of the cover plate bracket 2103 . The compression spring can apply elastic pressure to the cover plate bracket 2103 so that the cover plate bracket 2103 can be close to the piston body 2101 .

[0044] Regarding the implementation of the cover plate body 2102 being close to or away from the piston body 2101 , there are at least the following alternative embodiments.

[0045] In some alternative embodiments, the cover plate bracket 2103 is fixedly connected to the piston body 2101, and the cover plate body 2102 is movably arranged on the cover plate bracket 2103. Specifically, the cover plate bracket 2103 is fixedly arranged on the upper end surface of the piston body 2101 through the first vertical rod 2104, and the cover plate bracket 2103 provides installation and guidance for the cover plate body 2102 with the first vertical rod 2104 or other replaceable vertical rod structures, so that the cover plate body 2102 can move smoothly on the upper end surface of the piston body 2101.

[0046] In some embodiments, the outer wall of the anchor pile 2000 is layered with a first unidirectional toothed structure 2001, which is used to prevent the anchor pile 2000 from being pulled out from the seabed. The first unidirectional toothed structure 2001 forms a bite with the seabed. The more violent the cable fluctuation, the deeper the anchoring of the anchor pile 2000 and the seabed and the greater the anchoring strength. The greater the impact, the stronger the anchoring, which greatly improves the safety of seabed operations.

[0047] It is understandable that when the anchor pile 2000 is subjected to an upward pulling force, the seabed structure applies resistance to the first unidirectional toothed structure 2001 to prevent the anchor pile 2000 from being pulled out from the seabed. In this case, as the piston assembly 2100 gradually converts the wave energy of the cable into a force pressing down on the anchor pile 2000, the anchor pile 2000 can be inserted deeper into the seabed, and the first unidirectional toothed structure 2001 is used to enhance the anchoring of the anchor pile 2000 on the seabed.

[0048] Specifically, relative to the longitudinal axis of the anchor pile 2000, the inclination angle of the lower side of the first unidirectional toothed structure 2001 is smaller than the inclination angle of the upper side. Further, the upper side of the first unidirectional toothed structure 2001 is a plane perpendicular to the longitudinal axis of the anchor pile 2000.

[0049] In some examples, the first unidirectional toothed structure 2001 of the outer wall of the anchor pile 2000 is configured as a layered toothed ring. In other alternative examples, the first unidirectional toothed structure 2001 is configured as a toothed structure spaced apart along the circumference, which is equivalent to a complete toothed ring being interrupted at equal intervals to form multiple toothed structures.

[0050] In some examples, the first unidirectional toothed structure 2001 is located on the outer side wall of the lower end of the anchor pile 2000 .

[0051] In some embodiments, the top plate 3000 is configured to be arched in a direction away from the seabed, and the top plate 3000 is formed as an arc-shaped arched cover plate.

[0052] It is understandable that the water flow can form pressure on the upper surface of the top plate 3000, and the top plate 3000 transmits the pressure to the anchor pile 2000 to enhance the anchoring of the anchor pile 2000 on the seabed. Also, the water flow can form eddies on the lower side of the top plate 3000, thereby generating fluctuations in the cable, and the fluctuation energy is converted into a force that presses down the anchor pile 2000 through the connecting rod mechanism 4000 and the piston assembly 2100, thereby enhancing the anchoring of the anchor pile 2000 on the seabed.

[0053] It should be noted that the arched top plate 3000 achieves the synergistic effect of energy dissipation and vortex separation through fluid boundary layer control, breaking through the passive impact resistance mode of the traditional protective structure. In this case, the top plate 3000 can also divert the water flow and guide the water flow to move to the upper side of the top plate 3000, thereby reducing the impact of the water flow on the cable on the lower side of the top plate 3000 and reducing the fluctuation of the cable. In addition, the arched top plate 3000 can make the water flow on the lower side form a stable vortex, which can also dissipate the kinetic energy of the water.

[0054] In some embodiments, the clamping assembly 1000 includes a clamping arm 1100, a clamping linkage structure, and a clamping bracket 1200. The clamping arm 1100 is provided in two, the clamping linkage structure is located between the two clamping arms 1100, the clamping linkage structure is provided on the clamping bracket 1200, and the clamping arm 1100 is hinged to the clamping bracket 1200 and the clamping linkage structure respectively. The top of the clamping arm 1100 is hinged to the clamping bracket 1200, the middle of the clamping arm 1100 is hinged to the clamping linkage structure, and the lower part of the clamping arm 1100 is used to clamp the cable. The clamping linkage structure can drive the two clamping arms 1100 to approach each other and close together, so that the two clamping arms 1100 clamp the cable.

[0055] Specifically, the clamping jaw linkage structure can move along the first direction on the clamping jaw support 1200 close to the top plate 3000 and drive the two clamping jaw arms 1100 to clamp the cable. When the clamping jaw linkage structure moves upward along the first direction, the clamping jaw linkage structure drives the two clamping jaw arms 1100 to approach each other. In this case, when the clamping assembly 1000 is pressed down and abuts against the cable, the surface of the cable presses against the clamping jaw linkage structure and causes the clamping jaw linkage structure to move upward, and then the two clamping jaw arms 1100 close and clamp the cable.

[0056] It can be understood that the clamping assembly 1000 can achieve adaptive grasping and passive grasping of the cable through the jaw linkage structure, which can firmly grasp and fix the cable and avoid damaging the surface of the cable, making it suitable for long-term use on the seabed. It should be noted that the clamping assembly 1000 can also move downward relying on the gravity of the anchoring device itself, so as to achieve adaptive grasping and passive grasping of the cable.

[0057] In some examples, the jaw linkage structure includes a jaw linkage bracket 1301 and two jaw linkage rods 1302. One end of the jaw linkage rod 1302 is hinged to the jaw linkage bracket 1301 and the other end is hinged to the jaw arm 1100. It can be understood that the jaw arms 1100 are respectively connected to the jaw linkage bracket 1301 through the jaw linkage rods 1302 and are hinged to the jaw linkage rods 1302 in the middle.

[0058] To realize the movement of the jaw linkage bracket 1301 on the jaw bracket 1200 in the first direction, the jaw bracket 1200 is provided with an installation hole for installing the jaw linkage bracket 1301. The installation hole extends in the first direction and is formed as a through hole. It can be understood that the upper end of the jaw linkage bracket 1301 penetrates through the installation hole.

[0059] In some examples, a locking structure is provided between the jaw linkage bracket 1301 and the jaw bracket 1200 to prevent the jaw linkage bracket 1301 from moving away from the top plate 3000, so as to realize that the jaw linkage bracket 1301 can only move upward in the first direction on the jaw bracket 1200 and cannot move downward. In this case, when the surface of the cable pushes up the jaw linkage structure and the jaw arms 1100 complete the clamping of the cable, since the jaw linkage structure cannot move downward under the restriction of the locking structure, the two jaw arms 1100 can maintain a firm clamping of the cable.

[0060] Specifically, a second one-way tooth-shaped structure 1303 is provided on the outer side wall of one end of the jaw linkage bracket 1301 for connecting the jaw bracket 1200. The second one-way tooth-shaped structure 1303 is arranged in layers and serves as the locking structure. The jaw linkage bracket 1301 has a second vertical rod for penetrating through the installation hole, and the second one-way tooth-shaped structure 1303 is located on the outer side surface of the second vertical rod. Further, the second one-way tooth-shaped structure 1303 is located on the outer side surface of the upper end of the second vertical rod.

[0061] It can be understood that the direction defined by the second one-way tooth-shaped structure 1303 on the jaw linkage bracket 1301 is opposite to that of the first one-way tooth-shaped structure 2001 on the anchoring pile 2000. Specifically, on the outer side wall of the second vertical rod, relative to the axis in the length direction of the second vertical rod, the inclination angle of the lower side surface of the second one-way tooth-shaped structure 1303 is greater than that of the upper side surface. Further, the lower side surface of the second one-way tooth-shaped structure 1303 is a plane perpendicular to the axis in the length direction of the second vertical rod.

[0062] In some examples, the second one-way tooth-shaped structure 1303 on the outer side wall of the second vertical rod is arranged as a layered tooth-shaped ring. In some alternative examples, the second one-way tooth-shaped structure 1303 is arranged as a tooth-shaped structure distributed at intervals along the circumference, which is equivalent to a plurality of tooth-shaped structures formed by equally spacing and interrupting a complete tooth-shaped ring.

[0063] In some examples, at least at the upper end port of both ends of the mounting hole, at least one elastic limiting structure is provided. The end of the elastic limiting structure can exert a resistance on the second one-way tooth-shaped structure 1303, thereby preventing the jaw linkage bracket 1301 from moving away from the top plate 3000.

[0064] When the underwater cable jacks up the jaw linkage bracket 1301, the jaw linkage bracket 1301 has a tendency to move upward in the first direction. The second one-way tooth-shaped structure 1303 can cause the elastic limiting structure to be jacked up and bent, so that the jaw linkage bracket 1301 can move upward. If the jaw linkage bracket 1301 moves downward in the first direction, the elastic limiting structure exerts an upward resistance on the jaw linkage bracket 1301 by pressing against the lower side surface of the second one-way tooth-shaped structure 1303, thereby preventing the jaw linkage bracket 1301 from moving downward.

[0065] In some examples, the elastic limiting structure is arranged as a metal spring piece 1201.

[0066] In some examples, an elastic limiting structure is provided at the upper end port of the mounting hole, and one end of the elastic limiting structure is fixed to the jaw bracket 1200. In some alternative examples, elastic limiting structures are provided at both the upper and lower end ports of the mounting hole.

[0067] In some examples, at least two elastic limiting structures are arranged at intervals along the circumference at the port of the mounting hole. Further, the elastic limiting structures are equally spaced along the circumference.

[0068] In some embodiments, the clamping assembly 1000 is movably connected to the top plate 3000 to define reciprocating up and down movement of the clamping assembly 1000 along a first direction. Specifically, the jaw support 1200 is movably connected to the top plate 3000 through a guiding and sliding structure 1401 and a guiding rod 1402. The guiding rod 1402 extends along the first direction, and the guiding and sliding structure 1401 is movably sleeved on the outer sidewall of the guiding rod 1402. Further, one of the guiding and sliding structure 1401 and the guiding rod 1402 is disposed on the side surface of the top plate 3000 facing the seabed, and the other is disposed on the jaw support 1200.

[0069] It can be understood that the guiding rod 1402 provides a guiding function for the reciprocating up and down movement of the jaw support 1200 along the first direction, and thus provides a guiding function for the reciprocating up and down movement of the clamping assembly 1000. Further, the guiding and sliding structure 1401 is provided as a guiding sleeve.

[0070] Further, the length of the guiding rod 1402 is sufficient to satisfy the displacement range of the up and down movement of the clamping assembly 1000 to prevent the guiding and sliding structure 1401 from detaching from the guiding rod 1402. Alternatively, a limiting and stopping structure protruding radially is provided on the sidewall of the guiding rod 1402, and the upper side of the limiting and stopping structure abuts against the lower side of the guiding and sliding structure 1401, then the guiding and sliding structure 1401 can be prevented from disengaging from the guiding rod 1402.

[0071] In some examples, the guiding rod 1402 is disposed on the lower side surface of the top plate 3000, and the guiding and sliding structure 1401 is disposed on the jaw support 1200. In some alternative examples, the guiding rod 1402 is disposed on the jaw support 1200, and the guiding and sliding structure 1401 is disposed on the lower side surface of the top plate 3000.

[0072] In some examples, both the guiding rod 1402 and the guiding and sliding structure 1401 are provided as at least one. When both the guiding rod 1402 and the guiding and sliding structure 1401 are provided as at least one, the guiding rod 1402 or the guiding and sliding structure 1401 is disposed in the middle of the jaw support 1200. When both the guiding rod 1402 and the guiding and sliding structure 1401 are provided as at least two, the guiding rod 1402 or the guiding and sliding structure 1401 is circumferentially and equally spaced on the side surface of the jaw support 1200 facing the top plate 3000.

[0073] It should be noted that the link mechanism 4000 is hinged to the jaw support 1200. Specifically, the jaw support 1200 is provided as a link, and link mechanisms 4000 are hinged to both ends of the jaw support 1200, so that the clamping assembly 1000 is respectively connected to two anchoring piles 2000 through the link mechanisms 4000.

[0074] In some embodiments, the linkage mechanism 4000 includes a first slider 4100, a first connecting rod 4201, and a second connecting rod 4202. The first slider 4100 is hinged to the clamping assembly 1000. The first slider 4100 is arranged in the shape of a hollow sleeve and sleeved on the outer side wall of one end of the first connecting rod 4201. The other end of the first connecting rod 4201 is hinged to one end of the second connecting rod 4202, and the other end of the second connecting rod 4202 is hinged to the piston assembly 2100.

[0075] It can be understood that the first slider 4100 is hinged to the jaw bracket 1200, and the second connecting rod 4202 is hinged to the piston body 2101. Specifically, a connecting rod bracket 2201 is provided on the upper side end face of the piston body 2101, and the second connecting rod 4202 is hinged to the connecting rod bracket 2201.

[0076] Furthermore, the first connecting rod 4201 is hinged to the side wall of the anchor pile 2000, and the hinged position of the first connecting rod 4201 and the anchor pile 2000 is between the first slider 4100 and the second connecting rod 4202. In this case, the middle part of the first connecting rod 4201 takes the anchor pile 2000 as a fulcrum, and the first connecting rod 4201 plays a lever role. When the clamping assembly 1000 moves up and down at one end of the first connecting rod 4201, the piston assembly 2100 moves in the opposite direction relative to the clamping assembly 1000.

[0077] In some examples, a first support rod 4301 and a second support rod 4302 are provided on the top of the anchor pile 2000. The top of the first support rod 4301 is fixedly connected to the top plate 3000, and the middle part of the first connecting rod 4201 is hinged to the second support rod 4302, and the second support rod 4302 serves as the fulcrum of the first connecting rod 4201.

[0078] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. An anchoring device for fixing submarine cables, characterized in that: including a top plate; at least a pair of anchoring piles, the tops of the anchoring piles being fixedly connected to the side surface of the top plate facing the seabed; a clamping assembly, the clamping assembly being arranged between two paired anchoring piles, the clamping assembly being used for clamping cables, and the clamping assembly being connected to the anchoring piles through a link mechanism; a piston assembly, the anchoring piles being hollow, the piston assembly being arranged inside the anchoring piles, the link mechanism being connected to the piston assembly and capable of driving the piston assembly to reciprocate in a first direction parallel to the length direction of the anchoring piles; wherein, the piston assembly includes a piston body and a cover plate assembly, the piston body is provided with a communication hole, the communication hole penetrates through the piston body along the thickness direction of the piston body, the cover plate assembly is arranged on one side of the piston body facing the top of the anchoring pile, and one side of the cover plate assembly facing the top of the anchoring pile can bear pressure and close the communication hole; the link mechanism includes a first slider, a first link and a second link, the first slider is hinged to the clamping assembly, the first slider is sleeved on the outer side wall of one end of the first link, the other end of the first link is hinged to one end of the second link, the other end of the second link is hinged to the piston assembly, the first link is hinged to the side wall of the anchoring pile, and the hinged position of the first link and the anchoring pile is between the first slider and the second link.

2. The anchoring device for fixing submarine cables according to claim 1, characterized in that: the cover plate assembly includes a cover plate body and a cover plate bracket, the cover plate bracket is arranged on the side surface of the piston body; wherein, the cover plate body is fixedly connected to the cover plate bracket, and the cover plate bracket can approach the piston body in the first direction; or, the cover plate body is movably arranged on the cover plate bracket, and the cover plate body can move close to the piston body in the first direction and fit against the side surface of the piston body.

3. The anchoring device for fixing submarine cables according to claim 1 or 2, characterized in that: the outer side wall of the anchoring pile is hierarchically provided with a first one-way tooth-shaped structure for preventing the anchoring pile from being pulled out of the seabed.

4. The anchoring device for fixing submarine cables according to claim 1, characterized in that: the clamping assembly includes clamping jaw arms, a clamping jaw linkage structure and a clamping jaw bracket, the link mechanism is hinged to the clamping jaw bracket, two clamping jaw arms are provided, the clamping jaw linkage structure is located between the two clamping jaw arms, the clamping jaw linkage structure is arranged on the clamping jaw bracket, the clamping jaw arms are respectively hinged to the clamping jaw bracket and the clamping jaw linkage structure, and the clamping jaw linkage structure can move close to the top plate in the first direction on the clamping jaw bracket and drive the two clamping jaw arms to clamp the cable.

5. The anchoring device for fixing submarine cables according to claim 4, characterized in that: the clamping jaw linkage structure includes a clamping jaw linkage bracket and two clamping jaw linkage rods, one end of the clamping jaw linkage rod is hinged to the clamping jaw linkage bracket and the other end is hinged to the clamping jaw arm, and a locking structure is arranged between the clamping jaw linkage bracket and the clamping jaw bracket to prevent the clamping jaw linkage bracket from moving away from the top plate.

6. The anchoring device for fixing submarine cables according to claim 5, characterized in that: On the outer side wall of one end of the jaw linkage bracket for connecting the jaw bracket, a second one-way tooth-shaped structure is provided. The jaw bracket is provided with a mounting hole for mounting the jaw linkage bracket. The mounting hole extends in a first direction. At least one elastic limiting structure is provided at least at the upper end port of the two ends of the mounting hole. The end of the elastic limiting structure can exert a resistance on the second one-way tooth-shaped structure and prevent the jaw linkage bracket from moving away from the top plate.

7. The anchoring device for fixing submarine cables according to any one of claims 4 to 6, characterized in that: The jaw bracket is movably connected to the top plate through a guiding sliding structure and a guiding rod. One of the guiding sliding structure and the guiding rod is arranged on the side surface of the top plate facing the seabed, and the other is arranged on the jaw bracket. The guiding rod extends in a first direction. The guiding sliding structure is movably sleeved on the outer side wall of the guiding rod.

8. The anchoring device for fixing submarine cables according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The top plate is arranged in a shape arched away from the seabed.

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