Fixing device

Abstract

The present invention relates to the technical field of cable fixing, and provides a fixing device, which includes a fixing member, an annular member and at least two dampers. The fixing member is used to connect a bending reinforcement member. The annular member is disposed around the outside of the fixing member. One end of the damper is connected to the fixing member, and the other end of the damper is connected to the annular member. At least two dampers are arranged at intervals in the circumferential direction between the fixing member and the annular member. Based on the arrangement of the annular member and the dampers outside the fixing member, linkage can be formed between at least two dampers and the damping effect of the dampers themselves can cancel out part of the bending moment, thereby reducing the load borne by the bending reinforcement member, reducing the risk of fatigue damage of the bending reinforcement member during long-term service, realizing the small-size design of the bending reinforcement member, and enabling the small-size bending reinforcement member to meet the functions of large bending moment and fatigue load.

Description

Technical Field

[0001] The present invention relates to the technical field of cable fixing, and particularly to a fixing device. Background Art

[0002] With the increasing demand for energy use in China and the gradual saturation of the number of offshore wind turbines, floating wind turbines and dynamic submarine cables in the far sea have become the mainstream of future offshore wind power projects.

[0003] Dynamic submarine cables are prone to dynamic fatigue and bending at the rigid contact position where they are led out from floating wind turbines, and it is necessary to install bending reinforcement members at this rigid contact position to improve their anti-bending and anti-fatigue capabilities. At present, the existing bending reinforcement members are directly fixed to the platform flange, which will bear large bending moments and fatigue loads during service, resulting in larger size design of the bending reinforcement members, and there is a risk of fatigue damage to the bending reinforcement members during long-term service. Summary of the Invention

[0004] The present invention provides a fixing device to solve the technical problem of fatigue damage of the bending reinforcement member directly fixed to the platform flange in the prior art during service, and to achieve miniaturized design of the bending reinforcement member and low-fatigue service.

[0005] The present invention provides a fixing device, including:

[0006] A fixing member for connecting the bending reinforcement member;

[0007] An annular member disposed around the outside of the fixing member;

[0008] At least two dampers, one end of each damper is connected to the fixing member, the other end of each damper is connected to the annular member, and the at least two dampers are circumferentially spaced between the fixing member and the annular member.

[0009] According to a fixing device provided by the present invention, the damper includes:

[0010] A cylinder body;

[0011] A first fixing seat and a second fixing seat, which are spaced apart and disposed inside the cylinder body;

[0012] A sliding seat, which is slidably disposed inside the cylinder body and is located between the first fixing seat and the second fixing seat. Damping chambers are respectively formed between the sliding seat and the first fixing seat and between the sliding seat and the second fixing seat, and damping liquid is filled in the damping chambers;

[0013] A piston rod, which sequentially passes through the first fixing seat, the sliding seat and the second fixing seat, and the piston rod is slidably connected to the first fixing seat and the second fixing seat, and the piston rod is fixedly connected to the sliding seat;

[0014] Wherein, both ends of the piston rod are respectively connected to the fixing member and the annular member.

[0015] According to a fixing device provided by the present invention, the damper further includes:

[0016] A first end cap, which is hermetically connected to the first end of the cylinder body. A relief groove is provided on the side of the first end cap facing the cylinder body. The first end of the piston rod is slidably connected to the relief groove. A connecting portion is formed on the side of the first end cap away from the cylinder body. The connecting portion is adapted to be connected to the annular member or the fixing member through a fastener;

[0017] A second end cap, which is hermetically connected to the second end of the cylinder body. The second end of the piston rod passes through the second end cap and is connected to the fixing member or the annular member.

[0018] According to a fixing device provided by the present invention, a clamping groove is formed on the side of the annular member facing the damper. The connecting portion is adapted to be clamped in the clamping groove and fixed to the annular member through a fastener.

[0019] According to a fixing device provided by the present invention, the fixing member includes:

[0020] A first connecting member, which is internally hollow to form a first cavity for passing a cable. A first support ring is provided in the first cavity. The first support ring is used for passing the cable and pressing the armor layer of the cable against the inner surface of the first cavity;

[0021] A second connecting member, which is internally hollow to form a second cavity for passing a cable. A second support ring is provided in the second cavity. The second support ring is used for passing the cable and pressing the armor layer of the cable against the inner surface of the second cavity;

[0022] The first connecting member and the second connecting member are butted and are adapted to be fixed through a fastener.

[0023] According to a fixing device provided by the present invention, an annular groove is formed on the outer surface of the first connecting member or the second connecting member. At least two flexible anti-collision members are sleeved in the annular groove, and a gasket is provided between adjacent two of the flexible anti-collision members.

[0024] According to a fixing device provided by the present invention, the first connecting member or the second connecting member is adapted to be connected to the bending strengthening member through a transition member. Wherein, an anode block is installed on the outer surface of the first connecting member and / or the second connecting member and / or the transition member.

[0025] According to a fixing device provided by the present invention, the first connecting member is provided with a grounding hole communicating with the first cavity, a grounding structure is arranged in the grounding hole, one end of the grounding structure is located in the first cavity and is connected with a conductive connecting portion, the conductive connecting portion is used for electrically connecting the armor layer of the cable in the first cavity and the armor layer of the cable in the second cavity, the other end of the grounding mechanism is clamped in the grounding hole and is connected with a ground wire, and the ground wire is electrically connected with the conductive connecting portion;

[0026] Or the second connecting member is provided with a grounding hole communicating with the second cavity, a grounding structure is arranged in the grounding hole, one end of the grounding structure is located in the second cavity and is connected with a conductive connecting portion, the conductive connecting portion is used for electrically connecting the armor layer of the cable in the first cavity and the armor layer of the cable in the second cavity, the other end of the grounding mechanism is clamped in the grounding hole and is connected with a ground wire, and the ground wire is electrically connected with the conductive connecting portion.

[0027] According to a fixing device provided by the present invention, the first connecting member and / or the second connecting member and / or the transition member is provided with a flange, at least two connecting holes are arranged on the outer peripheral surface of one of the flanges, the connecting holes are adapted to the damper, and the end portion of the damper is inserted into the connecting hole.

[0028] According to a fixing device provided by the present invention, it further includes an installation pipe, the installation pipe includes a straight section and a gradually expanding section, the fixing member is clamped on the straight section, and the annular member is clamped on the gradually expanding section;

[0029] Wherein, a guiding cone is connected to one end of the fixing member facing the installation pipe.

[0030] The fixing device provided by the embodiment of the present invention connects the bending strengthening member through the fixing member. After the bending moment received by the bending strengthening member is transmitted to the fixing member, based on the arrangement of the annular member and the damper outside the fixing member, linkages can be formed between at least two dampers and the damping effect of the damper itself, and part of the bending moment can be offset, thereby reducing the load received by the bending strengthening member and reducing the risk of fatigue damage of the bending strengthening member during long-term service, realizing the small-size design of the bending strengthening member, and enabling the small-size bending strengthening member to meet the functions of large bending moment and fatigue load. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic three-dimensional structure diagram of the fixing device provided by the present invention;

[0033] Figure 2 It is a cross-sectional view of the fixing device provided by the present invention;

[0034] Figure 3 It is a front view of the fixing device provided by the present invention;

[0035] Figure 4 It is a schematic diagram after the fixing device provided by the present invention is connected to the installation pipe;

[0036] Figure 5 It is a cross-sectional view of the damper in the fixing device provided by the present invention;

[0037] Figure 6 It is a partial enlarged view of the grounding structure in the fixing device provided by the present invention.

[0038] Reference numerals:

[0039] 10, fixing member; 110, first connecting member; 120, second connecting member; 130, first support ring; 140, second support ring; 150, annular groove; 160, flexible anti-collision member; 170, gasket; 20, annular member; 210, card slot; 30, damper; 310, cylinder body; 320, first fixing seat; 330, second fixing seat; 340, sliding seat; 350, damping liquid; 360, piston rod; 370, first end cover; 3710, relief groove; 3720, connecting portion; 380, second end cover; 40, bending strengthening member; 50, cable; 510, armor layer; 60, transition member; 610, anode block; 620, flange; 630, connecting hole; 70, guiding cone; 810, grounding hole; 820, grounding structure; 830, conductive connecting portion; 840, ground wire; 90, installation pipe. Specific embodiments

[0040] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0041] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention 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 on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0042] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" 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. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0043] In the embodiments of the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0044] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 embodiments of the present invention. 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. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] The following will be combined with Figures 1 - 6 Describe the embodiments of the present invention.

[0046] AsFigures 1 - 6 As shown in Figures 1 - 6 , an embodiment of the present invention provides a fixing device, which mainly includes a fixing member 10, an annular member 20, and at least two dampers 30.

[0047] The fixing member 10 is used to connect the bending reinforcement member 40. The annular member 20 is disposed around the outside of the fixing member 10. One end of the damper 30 is connected to the fixing member 10, and the other end of the damper 30 is connected to the annular member 20. At least two dampers 30 are circumferentially spaced between the fixing member 10 and the annular member 20.

[0048] In this embodiment, the bending reinforcement member 40 is connected by the fixing member 10. After the bending moment received by the bending reinforcement member 40 is transmitted to the fixing member 10, based on the arrangement of the annular member 20 and the damper 30 outside the fixing member 10, linkage can be formed between at least two dampers 30 and the damping effect of the damper 30 itself, which can offset part of the bending moment, thereby reducing the load borne by the bending reinforcement member 40, reducing the risk of fatigue damage of the bending reinforcement member 40 during long-term service, realizing the small-size design of the bending reinforcement member 40, and enabling the small-size bending reinforcement member 40 to meet the functions of large bending moment and fatigue load.

[0049] Connecting the bending reinforcement member 40 in such a way can realize the small-size design of the bending reinforcement member 40. Based on the small-size bending reinforcement member 40, it is not easy to form bubbles on the surface of the bending reinforcement member 40 during the casting process of the bending reinforcement member 40, and at the same time, there is no need to use a large casting machine, reducing the production cost.

[0050] Preferably, the annular member 20 is arranged as a circular ring, the outer surface of the fixing member 10 is circular, and at least two dampers 30 are centrally symmetrically distributed between the fixing member 10 and the annular member 20, whereby compensation can be formed in all directions to offset the bending moment. Taking Figure 1 the setting of 8 dampers 30 as an example, the 8 dampers 30 are centrally symmetrically distributed in the annular area between the fixing member 10 and the annular member 20, and the center of central symmetry is located at the circular part of the annular member 20. When the bending reinforcement member 40 receives a bending moment and transmits it to the fixing member 10, linkage can be generated between the 8 dampers 30, thereby offsetting part of the bending moment, reducing the load borne by the bending reinforcement member 40 itself, and reducing the risk of fatigue damage of the bending reinforcement member 40 during long-term service, realizing that the small-size bending reinforcement member 40 meets the performance requirements of large bending moment and fatigue load.

[0051] Such as Figure 5As shown, the damper 30 includes a cylinder body 310, a first fixed seat 320, a second fixed seat 330, a sliding seat 340, and a piston rod 360. The first fixed seat 320 and the second fixed seat 330 are spaced apart and disposed within the cylinder body 310, and the first fixed seat 320 and the second fixed seat 330 are fixedly connected to the inner surface of the cylinder body 310. The sliding seat 340 is slidably disposed within the cylinder body 310 and is located between the first fixed seat 320 and the second fixed seat 330. Damping chambers are respectively formed between the sliding seat 340 and the first fixed seat 320 and between the sliding seat 340 and the second fixed seat 330, and the damping chambers are filled with damping fluid 350. The piston rod 360 sequentially passes through the first fixed seat 320, the sliding seat 340, and the second fixed seat 330, and the piston rod 360 is slidably connected to the first fixed seat 320 and the second fixed seat 330, and the piston rod 360 is fixedly connected to the sliding seat 340. Both ends of the piston rod 360 are connected to the fixing member 10 and the annular member 20 respectively.

[0052] When one end of the piston rod 360 is subjected to the acting force of the fixing member 10 or the annular member 20, the piston rod 360 will slide within the cylinder body 310, specifically, it will slide between the first fixed seat 320 and the second fixed seat 330. The movement of the piston rod 360 will drive the sliding seat 340 to move between the first fixed seat 320 and the second fixed seat 330. During the movement of the sliding seat 340, due to the action of the damping fluid 350, a buffering effect can be achieved, eliminating part of the bending moment received by the bending reinforcement 40. And under the combined action of multiple dampers 30, the bending moment received by the bending reinforcement 40 is further offset, reducing the load received by the bending reinforcement 40 itself, and reducing the risk of fatigue damage of the bending reinforcement 40 during long-term service, so that the small-sized bending reinforcement 40 can meet the performance requirements of large bending moments and fatigue loads.

[0053] It can be understood that through holes are provided on the first fixed seat 320, the second fixed seat 330, and the sliding seat 340, so that the piston rod 360 can sequentially pass through the first fixed seat 320, the sliding seat 340, and the second fixed seat 330. Among them, sealing rings are provided on the inner surfaces of the through holes of the first fixed seat 320 and the second fixed seat 330, and sealing rings are also provided on the outer surfaces of the first fixed seat 320 and the second fixed seat 330 to ensure the sealed connection between the first fixed seat 320 and the second fixed seat 330 and the inner surface of the cylinder body 310, as well as between the first fixed seat 320 and the second fixed seat 330 and the piston rod 360. The sealing ring can be an O-ring, a shaft-mounted U-ring, a shaft-mounted stepped ring, etc.

[0054] A groove may be provided in the through hole of the sliding seat 340. A clamping block extends outward from the piston rod 360 at a position corresponding to the groove, and the clamping block is clamped in the groove to achieve a fixed connection between the piston rod 360 and the sliding seat 340, ensuring that the piston rod 360 can drive the sliding seat 340 to slide during the movement process.

[0055] As Figure 5 shown, the damper 30 further includes a first end cover 370 and a second end cover 380. The first end cover 370 is sealingly connected to the first end of the cylinder body 310. A relief groove 3710 is provided on the side of the first end cover 370 facing the cylinder body 310. The first end of the piston rod 360 is slidably connected to the relief groove 3710. A connecting portion 3720 is formed on the side of the first end cover 370 away from the cylinder body 310, and the connecting portion 3720 is adapted to be connected to the annular member 20 or the fixing member 10 through a fastener. The second end cover 380 is sealingly connected to the second end of the cylinder body 310. The second end of the piston rod 360 passes through the second end cover 380, and the second end of the piston rod 360 is connected to the fixing member 10 or the annular member 20 outside the cylinder body 310.

[0056] The first end cover 370 and the second end cover 380 are respectively used to close the two ends of the cylinder body 310, and the first end cover 370 can also be used to connect the annular member 20 or the fixing member 10 while closing the cylinder body 310. The relief groove 3710 formed on the side of the first end cover 370 facing the cylinder body 310 is used to accommodate the piston rod 360. When the piston rod 360 slides in the cylinder body 310 under the drive of an external force, the end of the piston rod 360 can slide in the relief groove 3710 to prevent the first end cover 370 from interfering with the movement of the piston rod 360. The other end of the piston rod 360 passes through the second end cover 380 to prevent the second end cover 380 from interfering with the movement of the piston rod 360.

[0057] It can be understood that a through hole is provided in the second end cover 380 to enable the piston rod 360 to slide out of the cylinder body 310 through the second end cover 380. A sealing ring is provided on the inner surface of the through hole of the second end cover 380, and a sealing ring is also provided on the outer surface of the second end cover 380 to ensure the sealing connection between the second end cover 380 and the cylinder body 310, as well as between the second end cover 380 and the piston rod 360. A sealing ring is provided on the outer surface of the first end cover 370 to ensure the sealing connection between the first end cover 370 and the cylinder body 310. The sealing ring can be an O-ring, a U-ring for shafts, a stepped ring for shafts, etc.

[0058] In this embodiment, the first end cap 370 is connected to the annular member 20, and the second end of the piston rod 360 passes through the second end cap 380 and is connected to the fixing member 10. When the bending reinforcement member 40 is subjected to a bending moment and transmits it to the fixing member 10, a part of the piston rod 360 of the damper 30 slides in the direction of the relief groove 3710, and another part of the piston rod 360 of the damper 30 slides in the direction of the second end cap 380, so as to offset part of the bending moment through the damping effect of the damper 30 itself and the linkage effect between multiple dampers 30.

[0059] As Figure 1 shown, a clamping groove 210 is formed on one side of the annular member 20 facing the damper 30. The connecting portion 3720 is adapted to be connected to the clamping groove 210 and is fixed to the annular member 20 by a fastener. The inner ring of the annular member 20 forms the clamping groove 210, and the clamping groove 210 is arranged in a ring shape. The connecting portion 3720 of the first end cap 370 is clamped in the clamping groove 210 to realize the connection between the damper 30 and the annular member 20.

[0060] The annular member 20 is provided with a plurality of mounting holes, and corresponding mounting holes are also provided on the connecting portion 3720. When the connecting portion 3720 is clamped in the clamping groove 210, the mounting holes of the connecting portion 3720 are aligned with the mounting holes of the annular member 20, and then the fastener is passed through the mounting holes of the connecting portion 3720 and the mounting holes of the annular member 20 to realize the fixed connection between the annular member 20 and the connecting portion 3720.

[0061] The connecting portion 3720 has a flat shape to facilitate clamping the connecting portion 3720 into the clamping groove 210.

[0062] According to the fixing device provided by the embodiment of the present invention, the fixing member 10 includes a first connecting member 110 and a second connecting member 120. The first connecting member 110 has a hollow interior to form a first cavity for passing the cable 50. A first support ring 130 is provided in the first cavity. The first support ring 130 is used for passing the cable 50 and pressing the armor layer 510 of the cable 50 against the inner surface of the first cavity. The second connecting member 120 has a hollow interior to form a second cavity for passing the cable 50. A second support ring 140 is provided in the second cavity. The second support ring 140 is used for passing the cable 50 and pressing the armor layer 510 of the cable 50 against the inner surface of the second cavity. Wherein, the first connecting member 110 and the second connecting member 120 are butted and fixed by a fastener.

[0063] The fixing member 10 is formed by the first connecting member 110 and the second connecting member 120. The first cavity inside the first connecting member 110 is a tapered cavity to facilitate cooperation with the tapered first support ring 130. The second cavity inside the second connecting member 120 is a tapered cavity to facilitate cooperation with the tapered second support ring 140.

[0064] The outer sheath of the portion of the cable 50 in the fixing member 10 will be stripped, and the armored steel wire will be cut from the middle, that is, the armored layer 510 will be cut. After the armored steel wire is cut, it will be divided into two parts, namely the part corresponding to the first cavity and the part corresponding to the second cavity. The armored steel wire of each part is broken apart so that the armored steel wire is at a certain angle. Then the first support ring 130 and the second support ring 140 are sleeved on the cable 50, and the first support ring 130 and the second support ring 140 are respectively pressed against the armored layers 510 on both sides, so as to press the armored layers 510 of the two parts against the inner surface of the first cavity and the inner surface of the second cavity respectively, and then the first support ring 130 and the second support ring 140 are locked to achieve the fixation of the cable 50 and the armored layer 510.

[0065] The first support ring 130 and the second support ring 140 each include two semi-circular conical members. Taking the first support ring 130 as an example, the two conical members are butted together so that the first support ring 130 can be sleeved on the cable 50. The tail ends of the two conical members are provided with connecting ears, and the connecting ears are respectively provided with mounting holes. After the two conical members are butted together, the mounting holes on the two connecting ears are aligned, and then fasteners are used to penetrate the two mounting holes to achieve mutual fixation of the two conical members, and at the same time, the first support ring 130 is locked to the cable 50.

[0066] In this embodiment, an annular groove 150 is formed on the outer surface of the first connecting member 110 or the second connecting member 120, and at least two flexible anti-collision members 160 are sleeved in the annular groove 150. The at least two flexible anti-collision members 160 are overlapped and connected, and a gasket 170 is provided between two adjacent flexible anti-collision members 160.

[0067] The flexible anti-collision member 160 made of flexible material can protect the first connecting member 110 and the second connecting member 120. After the fixing device is installed, the fixing device will be snapped into a trumpet-shaped mounting tube 90. By setting the flexible anti-collision member 160, the first connecting member 110 and the second connecting member 120 can be prevented from colliding with the tube wall of the trumpet-shaped mounting tube 90, thereby protecting the first connecting member 110 and the second connecting member 120.

[0068] The outer surface of the flexible anti-collision member 160 has a conical surface, so as to facilitate the installation of the fixing device into the trumpet-shaped installation tube 90 .

[0069] like Figure 2As shown, an annular groove 150 is provided on the outer surface of the first connector 110. Three flexible anti-collision members 160 are provided in the annular groove 150, and a gasket 170 is provided between every two adjacent flexible anti-collision members 160. Tightening holes are formed in both the gasket 170 and the flexible anti-collision member 160. After the flexible anti-collision member 160 and the gasket 170 are sleeved in the annular groove 150, the tightening holes on the flexible anti-collision member 160 and the gasket 170 are aligned with each other. A long screw is passed through each tightening hole and tightened by a bolt to tightly and stably connect the flexible anti-collision member 160 and the gasket 170. Among them, multiple tightening holes can be provided and are distributed at intervals along the circumferences of the gasket 170 and the flexible anti-collision member 160.

[0070] As Figure 2 shown, the first connector 110 or the second connector 120 is adapted to be connected to the bending reinforcement member 40 through the transition member 60. Among them, an anode block 610 is installed on the outer surface of the first connector 110 and / or the second connector 120 and / or the transition member 60. Figure 3 Taking the connection between the transition member 60 and the second connector 120 as an example, the transition member 60 and the second connector 120 are butt-jointed through fasteners, and a flange is provided at the connection between the transition member 60 and the second connector 120.

[0071] Since this fixing device is placed on the seabed, the first connector 110, the second connector 120, the transition member 60, etc. are made of metal materials and are prone to corrosion by seawater during long-term service. After the anode block 610 is provided on the outside, the anode block 610 can protect the first connector 110, the second connector 120, and the transition member 60 against corrosion. Specifically, anode blocks 610 are provided on the outer surfaces of the second connector 120 and the transition member 60, and the anode blocks 610 are zinc blocks.

[0072] As Figure 3 shown, the anode block 610 is fixed to a rectangular frame, and the rectangular frame is fixed to the outer surfaces of the second connector 120 and the transition member 60 through fasteners.

[0073] In this embodiment, as Figure 6 shown, the first connector 110 is provided with a grounding hole 810 communicating with the first cavity. A grounding structure 820 is provided in the grounding hole 810. One end of the grounding structure 820 is located in the first cavity and is connected to a conductive connection part 830. The conductive connection part 830 is used for electrically connecting the armor layer 510 of the cable 50 in the first cavity and the armor layer 510 of the cable 50 in the second cavity. The other end of the grounding mechanism is clamped in the grounding hole 810 and is connected to a ground wire 840, and the ground wire 840 is electrically connected to the conductive connection part 830.

[0074] During the assembly of the cable 50, the armor layer 510 is cut into two parts, and the two parts of the armor layer 510 are respectively fixed to the inner surfaces of the first cavity and the second cavity through the first support ring 130 and the second support ring 140. There is no electrical connection or grounding between the two parts of the armor steel wires. During long-term service, induced current may be generated, causing local heat release or even breakdown of the first connector 110 or the second connector 120, which is likely to cause seawater to corrode the armor layer 510 and make it break. By providing a grounding structure 820, the ground wire 840 forms an electrical connection with the armor layer 510 through the conductive connection part 830, realizing the grounding protection of the armor layer 510.

[0075] The conductive connection part 830 is a metal braided tape, specifically a copper braided tape. The two ends of the metal braided tape are respectively connected to a constant force spring, and then connected to the two parts of the armor layer 510 through the constant force spring, realizing the grounding of the two parts of the armor layer 510.

[0076] Specifically, the grounding hole 810 on the first connector 110 is arranged at a position where the first connector 110 is close to the second connector 120. The grounding structure 820 is generally in a T shape. The horizontal part of the T-shaped grounding structure 820 is inserted into the grounding hole 810 and extends to the surface of the first connector 110. A first installation channel is provided in the horizontal part. The ground wire 840 penetrates into the first connector 110 from the outside through the first installation channel. The vertical part of the T-shaped grounding structure 820 is located in the first cavity. The vertical part forms a second installation channel, and the second installation channel is connected to the first installation channel. The conductive connection part 830 is arranged in the second installation channel, and the two ends of the conductive connection part 830 are respectively connected to the two parts of the armor layer 510 through constant force springs. After the ground wire 840 penetrates through the first installation channel, it will abut against the conductive connection part 830 in the second installation channel to realize the grounding of the armor layer 510.

[0077] To avoid water leakage, a water sealing structure such as a sealing ring is provided between the grounding structure 820 and the grounding hole 810, and between the grounding structure 820 and the ground wire 840.

[0078] In another embodiment, the second connector 120 is provided with a grounding hole 810 communicating with the second cavity. The grounding structure 820 is arranged in the grounding hole 810. One end of the grounding structure 820 is located in the second cavity and is connected to a conductive connection part 830. The conductive connection part 830 is used to electrically connect the armor layer 510 of the cable 50 in the first cavity and the armor layer 510 of the cable 50 in the second cavity. The other end of the grounding mechanism is clamped in the grounding hole 810 and is connected to a ground wire 840, and the ground wire 840 is electrically connected to the conductive connection part 830.

[0079] During the assembly of the cable 50, the armor layer 510 is cut into two parts, and the two parts of the armor layer 510 are respectively fixed to the inner surfaces of the first cavity and the second cavity through the first support ring 130 and the second support ring 140. There is no electrical connection or grounding between the two parts of the armor steel wires. During long-term service, induced current may be generated, causing local heat release or even breakdown of the first connector 110 or the second connector 120, which is likely to cause seawater to corrode the armor layer 510 and make it break. By providing a grounding structure 820, the ground wire 840 forms an electrical connection with the armor layer 510 through the conductive connection part 830, realizing the grounding protection of the armor layer 510.

[0080] The conductive connection part 830 is a metal braided tape, specifically a copper braided tape. The two ends of the metal braided tape are respectively connected to a constant force spring, and then connected to the two parts of the armor layer 510 through the constant force spring, realizing the grounding of the two parts of the armor layer 510.

[0081] Specifically, the grounding hole 810 on the second connector 120 is arranged at a position where the second connector 120 is close to the first connector 110. The grounding structure 820 is generally in a T shape. The horizontal part of the T-shaped grounding structure 820 is inserted into the grounding hole 810 and extends to the surface of the second connector 120. A first installation channel is provided in the horizontal part. The ground wire 840 penetrates into the first installation channel from the outside of the second connector 120. The vertical part of the T-shaped grounding structure 820 is located in the first cavity. The vertical part is formed with a second installation channel, and the second installation channel is communicated with the first installation channel. The conductive connection part 830 is arranged in the second installation channel, and the two ends of the conductive connection part 830 are respectively connected to the two parts of the armor layer 510 through constant force springs. After the ground wire 840 penetrates through the first installation channel, it will abut against the conductive connection part 830 in the second installation channel to realize the grounding of the armor layer 510.

[0082] To avoid water leakage, a water sealing structure such as a sealing ring is provided between the grounding structure 820 and the grounding hole 810, and between the grounding structure 820 and the ground wire 840.

[0083] The first connector 110 and / or the second connector 120 and / or the transition piece 60 are provided with a flange 620. At least two connection holes 630 are provided on the outer peripheral surface of one of the flanges 620. The connection holes 630 are adapted to the damper 30, and the end of the damper 30 is inserted into the connection holes 630. After the second end of the piston rod 360 of the damper 30 passes through the second end cover 380, it will be connected to the connection holes 630 of the flange 620 to realize the fixed connection between the damper 30 and the fixing piece 10.

[0084] Among them, the second end of the piston rod 360 of the damper 30 can be provided with an external thread, and an internal thread can be provided in the connection hole 630. The external thread and the internal thread are matched. By threadedly installing the piston rod 360 in the connection hole 630, a fixed connection between the damper 30 and the fixing member 10 is achieved. Of course, the piston rod 360 and the connection hole 630 can also be connected by welding or bonding, etc., as long as the two can be firmly connected.

[0085] As Figure 3 shown, the bending reinforcement member 40 is connected to the transition member 60. A flange 620 is provided on the outer surface of the transition member 60, so as to install the damper 30 at a position close to the bending reinforcement member 40 to better offset the bending moment.

[0086] Among them, the number of connection holes 630 on the flange 620 is the same as the number of dampers 30, and the positions of the connection holes 630 are the same as the installation positions of the dampers 30. Taking the installation of 8 dampers 30 as an example, 8 connection holes 630 are provided on the flange 620, and the 8 connection holes 630 are arranged at intervals along the circumferential direction on the outer circumferential surface of the flange 620.

[0087] According to the fixing device provided by the present invention, as Figure 4 shown, it further includes an installation pipe 90. The installation pipe 90 includes an integrally formed straight section and a gradually expanding section. The fixing member 10 is snap-fitted to the straight section, and the annular member 20 is snap-fitted to the gradually expanding section. Among them, one end of the fixing member 10 facing the installation pipe 90 is connected with a guiding cone 70. While the aforementioned flexible anti-collision member 160 plays a role in protecting the first connecting member 110 from collision, by providing the guiding cone 70, it is convenient to snap-fit the fixing member 10 into the straight section and facilitate the fixing of the fixing member 10.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixing device, characterized in that, Comprising: A fixing member for connecting a bending reinforcement member; An annular member disposed around the outside of the fixing member; At least two dampers, one end of each damper being connected to the fixing member, the other end of each damper being connected to the annular member, the at least two dampers being circumferentially spaced between the fixing member and the annular member, each damper including a cylinder body, a piston rod, a first end cap and a second end cap, the first end cap being sealingly connected to the first end of the cylinder body, a relief groove being provided on the side of the first end cap facing the cylinder body, the first end of the piston rod being slidably connected to the relief groove, a connecting portion being formed on the side of the first end cap away from the cylinder body, the connecting portion being adapted to be connected to the annular member or the fixing member by a fastener, the second end cap being sealingly connected to the second end of the cylinder body, the second end of the piston rod passing through the second end cap and being connected to the fixing member or the annular member.

2. The fixing device according to claim 1, wherein, The damper further includes: A first fixing seat and a second fixing seat, spaced apart within the cylinder body; A sliding seat slidably disposed within the cylinder body and located between the first fixing seat and the second fixing seat, damping chambers being respectively formed between the sliding seat and the first fixing seat and between the sliding seat and the second fixing seat, damping fluid being filled in the damping chambers, the piston rod passing through the first fixing seat, the sliding seat and the second fixing seat in sequence, and the piston rod being slidably connected to the first fixing seat and the second fixing seat, the piston rod being fixedly connected to the sliding seat, and both ends of the piston rod being connected to the fixing member and the annular member respectively.

3. The fixing device according to claim 2, characterized in that, A clamping groove is formed on the side of the annular member facing the damper, and the connecting portion is adapted to be clamped in the clamping groove and fixed to the annular member by a fastener.

4. The fixing device according to any one of claims 1 to 3, characterized in that, The fixing member includes: A first connecting member having a hollow interior forming a first cavity for passing a cable, a first support ring being provided in the first cavity for passing the cable and pressing the armor layer of the cable against the inner surface of the first cavity; A second connecting member having a hollow interior forming a second cavity for passing a cable, a second support ring being provided in the second cavity for passing the cable and pressing the armor layer of the cable against the inner surface of the second cavity; The first connecting member and the second connecting member are butted and adapted to be fixed by a fastener.

5. The fixing device according to claim 4, characterized in that, An annular groove is formed on the outer surface of the first connecting member or the second connecting member, at least two flexible anti-collision members being sleeved in the annular groove, and a gasket being provided between adjacent two of the flexible anti-collision members.

6. The fixing device according to claim 4, characterized in that, The first connecting member or the second connecting member is adapted to be connected to the bending reinforcement member through a transition member, wherein an anode block is mounted on the outer surface of the first connecting member and / or the second connecting member and / or the transition member.

7. The fixing device according to claim 4, characterized in that The first connecting member is provided with a grounding hole communicating with the first cavity. A grounding structure is arranged in the grounding hole. One end of the grounding structure is located in the first cavity and is connected with a conductive connecting portion. The conductive connecting portion is used for electrically connecting the armor layer of the cable in the first cavity and the armor layer of the cable in the second cavity. The other end of the grounding mechanism is clamped in the grounding hole and is connected with a ground wire. The ground wire is electrically connected with the conductive connecting portion; Alternatively, the second connecting member is provided with a grounding hole communicating with the second cavity. A grounding structure is arranged in the grounding hole. One end of the grounding structure is located in the second cavity and is connected with a conductive connecting portion. The conductive connecting portion is used for electrically connecting the armor layer of the cable in the first cavity and the armor layer of the cable in the second cavity. The other end of the grounding structure is clamped in the grounding hole and is connected with a ground wire. The ground wire is electrically connected with the conductive connecting portion.

8. The fixing device according to claim 6, characterized in that, The first connecting member and / or the second connecting member and / or the transition member is provided with a flange. At least two connecting holes are arranged on the outer peripheral surface of one of the flanges. The connecting holes are adapted to the damper, and the end of the damper is inserted into the connecting holes.

9. The fixing device according to any one of claims 1-3, characterized in that, It further includes an installation pipe. The installation pipe includes a straight section and a gradually expanding section. The fixing member is clamped to the straight section, and the annular member is clamped to the gradually expanding section; Wherein, a guiding cone is connected to one end of the fixing member facing the installation pipe.

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