Submarine cable tensile bending limiting device

Abstract

The utility model discloses a submarine cable tensile bending limiter, and particularly relates to the technical field of submarine cable installation, the submarine cable tensile bending limiter comprises a bending limiter main body, the bending limiter main body is a polyurethane material component, the outer side end face of the bending limiter main body is provided with a limit installation bump, the end face of the limit installation bump is provided with an installation hole, and the limit installation bump is provided with a groove. A limiting locking sleeve is arranged outside the end face of the limiting installation protruding block. A concave mounting groove is formed in the outer side end face of the limiting locking sleeve, and a reinforcing mounting sleeve is arranged in the concave mounting groove. During actual use, the concave limiting clamping grooves and the limiting mounting bumps are arranged, so that a plurality of limiting locking sleeves can be conveniently connected and fixed, and can be mounted according to the length of the turning part of the submarine cable; and meanwhile, under the corresponding arrangement state of a reinforcing mounting sleeve, a first reinforcing mounting plate, a second reinforcing mounting plate and a concave mounting groove, the stability of the limiting locking sleeve after the limiting locking sleeve is mounted on the outer end face of the bending limiter main body can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine cable installation, and more specifically, to a submarine cable tensile bending limiter. Background Art

[0002] Submarine cables are one of the key equipment for the development of marine resources. When exposed on the seabed, they may be damaged by excessive bending, fatigue and wear due to external loads such as waves, currents and deadweight. At present, submarine cable bend limiters are generally used for protection. Submarine cable bend limiters are composed of multiple identical substructures that are locked together. When the submarine cable is bent to a certain extent, the substructures are locked together to limit the further bending of the submarine cable. This can effectively prevent the submarine cable from being excessively bent and increase the fatigue life of the submarine cable. The bend limiter with a multi-joint structure usually adopts a half structure and is fixed with screws.

[0003] At present, when the bend limiter of this structure reaches the bending limit angle, continuing to bend will generate a large force on the bend limiter. When the force exceeds the strength of the connecting screws, the bend limiter will be damaged. For heavy submarine cables or heavy equipment terminals, the bend limiter must have high tensile strength and high bending resistance. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a submarine cable tensile bend limiter. The technical problem to be solved by the utility model is: how to avoid damage to the bend limiter when subjected to a large bending force and make adjustments.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submarine cable tensile bend limiter, comprising a bend limiter body, which is a polyurethane material component, the outer end surface of the bend limiter body is provided with a limit installation protrusion, the end surface of the limit installation protrusion is provided with a mounting hole, and the outer side of the end surface of the limit installation protrusion is provided with a limit locking sleeve;

[0006] A concave mounting groove is provided on the outer end surface of the limit locking sleeve, a reinforcement mounting sleeve is provided inside the concave mounting groove, a first reinforcement mounting plate is provided on one end surface of the reinforcement mounting sleeve, a second reinforcement mounting plate is provided on the end surface of the reinforcement mounting sleeve on the side away from the first reinforcement mounting plate, and locking screws are provided on the upper end surfaces of the first reinforcement mounting plate and the second reinforcement mounting plate.

[0007] In a preferred embodiment, the inner end surface of the limit locking sleeve is provided with a concave limit slot, and one end surface of the limit locking sleeve is provided with a mounting connector;

[0008] The position limiting locking sleeve is provided with a locking hole at an end surface on one side away from the mounting connector, and the inner end surfaces of the locking hole and the mounting hole are both provided with a first mounting screw.

[0009] In a preferred embodiment, the inner end surface of the concave limit slot is matched with the outer end surface of the limit installation protrusion, and the limit locking sleeve is in a rotationally connected state in the right viewing direction and is connected through a set installation connector;

[0010] The number of the locking holes is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the limiting locking sleeve in the top view direction.

[0011] In a preferred embodiment, the first mounting screws are provided in a plurality and are arranged in an array on both sides of the transverse central axis of the bend limiter body in a top view direction;

[0012] There are two position limiting mounting protrusions, which are arranged in a mirror image state on both sides of the vertical central axis of the bending limiter body in the top view direction.

[0013] In a preferred embodiment, the number of the mounting holes is multiple, and they are arranged in an array state on both sides of the transverse central axis of the bend limiter body in a top view direction;

[0014] The inner end surface of the position limiting locking sleeve is matched with the outer end surface of the bending limiter body, and the outer end surface of the concave installation groove is matched with the inner end surface of the reinforcement installation sleeve.

[0015] In a preferred embodiment, the outer end surfaces of the first reinforcement mounting plate and the second reinforcement mounting plate in a top view are arranged in a coplanar state, and the first reinforcement mounting plate and the second reinforcement mounting plate are connected by means of set locking screws.

[0016] Technical effects and advantages of the utility model:

[0017] In actual use, the utility model can conveniently connect and fix multiple limit locking sleeves by setting the concave limit card groove and the limit installation protrusion, so that they can be installed according to the length of the turning point of the submarine cable. At the same time, when the reinforced installation sleeve, the first reinforced installation plate, the second reinforced installation plate and the concave installation groove are correspondingly set, the stability of the limit locking sleeve after installation on the outer end surface of the bend limiter body can be effectively increased. When multiple bend limiter bodies are bent, when the acting force exceeds the strength of the connecting screws, the bend limiter can be prevented from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall right side structure of the utility model.

[0020] Figure 3It is a schematic diagram of the overall main cross-sectional structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the overall connection structure of the utility model.

[0022] Figure 5 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0023] The accompanying drawings are marked as: 1. bend limiter body, 2. limit locking sleeve, 3. reinforcement mounting sleeve, 4. limit mounting protrusion, 5. mounting hole, 6. locking hole, 7. locking screw, 8. mounting connector, 9. concave limit slot, 10. first mounting screw, 11. first reinforcement mounting plate, 12. second reinforcement mounting plate, 13. concave mounting slot. DETAILED DESCRIPTION

[0024] The utility model provides a submarine cable tensile bending limiter, such as Figure 1 , 2 As shown in and 3, it includes a bending limiter body 1, which is a polyurethane material component. The outer end face of the bending limiter body 1 is provided with a limiting mounting protrusion 4, and the end face of the limiting mounting protrusion 4 is opened with a mounting hole 5. The outside of the end face of the limiting mounting protrusion 4 is provided with a limiting locking sleeve 2. The number of the locking holes 6 is provided with two, and they are arranged in a mirror state on both sides of the vertical center axis of the limiting locking sleeve 2 in the top view direction. The number of the limiting mounting protrusions 4 is provided with two, and they are arranged in a mirror state on both sides of the vertical center axis of the bending limiter body 1 in the top view direction. The number of the mounting holes 5 is provided with multiple, and they are arranged in an array state on both sides of the transverse center axis of the bending limiter body 1 in the top view direction. The inner end face of the limiting locking sleeve 2 is adapted to the outer end face of the bending limiter body 1, so that the two bending limiter bodies 1 can be conveniently connected and fixed through the set limiting locking sleeve 2.

[0025] like Figure 4 and 5As shown, a concave mounting groove 13 is provided on the outer end surface of the limit locking sleeve 2, and a reinforcement mounting sleeve 3 is provided inside the concave mounting groove 13. A first reinforcement mounting plate 11 is provided on one end surface of the reinforcement mounting sleeve 3, and a second reinforcement mounting plate 12 is provided on the end surface of the side away from the first reinforcement mounting plate 11. The upper end surfaces of the first reinforcement mounting plate 11 and the second reinforcement mounting plate 12 are provided with locking screws 7, which can facilitate the locking and fixing of the first reinforcement mounting plate 11 and the second reinforcement mounting plate 12, thereby increasing the stability of the connection and installation of the limit locking sleeve 2, a concave limit slot 9 is provided on the inner end surface of the limit locking sleeve 2, and a mounting connector 8 is provided on one end surface of the limit locking sleeve 2, and a locking hole 6 is provided on the end surface of the side away from the mounting connector 8. The locking hole 6 and The inner end faces of the mounting holes 5 are each provided with a first mounting screw 10, which can facilitate the installation of the limit locking sleeve 2, thereby making it possible to conveniently lock and fix the bend limiter body 1. The inner end face of the concave limit slot 9 is adapted to the outer end face of the limit mounting protrusion 4. The limit locking sleeve 2 is in a rotationally connected state in the right viewing direction and is connected by the arranged mounting connector 8. There are multiple first mounting screws 10, and they are arranged in an array state on both sides of the transverse central axis of the bend limiter body 1 in the top viewing direction. The outer end face of the concave mounting groove 13 is adapted to the inner end face of the reinforcement mounting sleeve 3. The outer end faces of the first reinforcement mounting plate 11 and the second reinforcement mounting plate 12 in the top viewing direction are arranged in a coplanar state, and the first reinforcement mounting plate 11 and the second reinforcement mounting plate 12 are connected by the arranged locking screw 7.

[0026] Working principle of this utility model:

[0027] When the utility model is in use, when installing and using it, the staff can sleeve the bend limiter body 1 on the outer end face of the submarine cable, and then lock and fix it by the first mounting screw 10. Then the staff can sleeve the limit locking sleeve 2 on the outer end face of the limit mounting protrusion 4, and then the staff can lock and fix the limit locking sleeve 2 by the first mounting screw 10. Then the staff can sleeve the reinforcement mounting sleeve 3 on the inside of the concave mounting groove 13, and then lock and fix the first reinforcement mounting plate 11 and the second reinforcement mounting plate 12 by the locking screw 7.

[0028] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A submarine cable tensile bend limiter, characterized in that: include: A bend limiter body (1) is a polyurethane material component, the outer end surface of the bend limiter body (1) is provided with a limit installation protrusion (4), the end surface of the limit installation protrusion (4) is provided with a mounting hole (5), and the outer side of the end surface of the limit installation protrusion (4) is provided with a limit locking sleeve (2); The outer end surface of the limit locking sleeve (2) is provided with a concave mounting groove (13), the interior of the concave mounting groove (13) is provided with a reinforcing mounting sleeve (3), one end surface of the reinforcing mounting sleeve (3) is provided with a first reinforcing mounting plate (11), the reinforcing mounting sleeve (3) is provided with a second reinforcing mounting plate (12) on the end surface of the side away from the first reinforcing mounting plate (11), and the upper end surfaces of the first reinforcing mounting plate (11) and the second reinforcing mounting plate (12) are provided with locking screws (7).

2. The submarine cable tensile bend limiter according to claim 1, characterized in that: The inner end surface of the limit locking sleeve (2) is provided with a concave limit slot (9), and one end surface of the limit locking sleeve (2) is provided with a mounting connector (8); The position limiting locking sleeve (2) is provided with a locking hole (6) on the end surface of one side away from the mounting connector (8), and the inner end surfaces of the locking hole (6) and the mounting hole (5) are both provided with a first mounting screw (10).

3. A submarine cable tensile bend limiter according to claim 2, characterized in that: The inner end surface of the concave limit slot (9) is matched with the outer end surface of the limit installation protrusion (4), and the limit locking sleeve (2) is in a rotationally connected state in the right viewing direction and is connected via a set installation connector (8); The number of the locking holes (6) is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the limiting locking sleeve (2) in the top view direction.

4. A submarine cable tensile bend limiter according to claim 2, characterized in that: The first mounting screws (10) are provided in a plurality and are arranged in an array on both sides of the transverse central axis of the bend limiter body (1) in a top view direction; The number of the position limiting installation protrusions (4) is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the bending limiter body (1) in the top view direction.

5. The submarine cable tensile bend limiter according to claim 1, characterized in that: The number of the mounting holes (5) is plural, and they are arranged in an array state on both sides of the transverse central axis of the bending limiter body (1) in a top view direction; The inner end surface of the position limiting locking sleeve (2) is matched with the outer end surface of the bending limiter body (1), and the outer end surface of the concave installation groove (13) is matched with the inner end surface of the reinforcement installation sleeve (3).

6. The submarine cable tensile bend limiter according to claim 1, characterized in that: The first reinforcement mounting plate (11) and the second reinforcement mounting plate (12) are arranged in a coplanar state with respect to their outer end surfaces in a top view, and the first reinforcement mounting plate (11) and the second reinforcement mounting plate (12) are connected via a locking screw (7).

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