Submarine cable bending limiter fixing tool
By using the threaded connection structure between the screw and the connecting frame and the design of the semi-circular ring, the problem of the submarine cable bending limiter failing to connect and the connection being unstable in the seabed environment is solved, thus achieving stable laying and protection of the submarine cable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-04
- Publication Date
- 2026-04-07
AI Technical Summary
When existing submarine cable bending limiters are installed underwater, the complex seabed environment can cause misalignment and failure to mesh between segments, resulting in insufficient connection stability and inability to withstand the impact of marine forces, thus leading to poor protective performance.
It adopts a threaded connection structure of screw and connecting frame, combined with semi-circular ring and U-shaped frame, and realizes flexible docking of bending limiter and enhances connection stability through bolt connection, adapting to complex seabed environment.
It enables flexible docking and stable connection of the bend limiter in the seabed environment, avoids loosening and failure, and ensures the protective effect of the submarine cable.
Smart Images
Figure CN224097387U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of submarine cable laying and bending limiter construction, especially to the fixing tool used when repairing the submarine cable bending limiter. BACKGROUND
[0002] In the prior art, a bending limiter is usually sleeved on the outside during submarine cable laying to constrain the bending curvature of the submarine cable and avoid excessive bending damage to the cable body. Such bending limiters are mostly sectional structures, which are connected through self-structure occlusion or simple connectors and have been widely used in the field of submarine cable protection.
[0003] When the existing bending limiter is repaired and installed underwater, the docking deviation between sections is prone to occur due to the influence of the complex seabed environment and ocean currents and tides, and the occlusion of the last section often fails. The existing simple connectors cannot flexibly adjust the docking angle, are difficult to adapt to the complex seabed conditions, and lack connection stability, cannot resist the impact of marine external forces for a long time, are prone to loosening and failure, and thus affect the protection effect of the submarine cable.
[0004] Therefore, the submarine cable bending limiter fixing tool is proposed. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the above problems and proposes the submarine cable bending limiter fixing tool.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme:
[0007] The submarine cable bending limiter fixing tool comprises a bending limiter, the bending limiter is sleeved on the outside of the submarine cable, an annular groove is formed on the outside of the bending limiter, a semicircular ring is sleeved on the annular groove, a communication block is connected to the outside of the semicircular ring, a U-shaped frame is rotationally connected to the communication block through a bolt two, a screw rod is connected to one end of the U-shaped frame, a connecting frame is connected between the screw rods, the connecting frame has an inner threaded tube structure at both ends, and the inner threaded tube is threadedly connected to the screw rod.
[0008] Preferably, a connecting hole is formed on the bending limiter, a bolt is connected in the connecting hole to stabilize the docking state between the two groups of bending limiters.
[0009] Preferably, two groups of semicircular rings are connected to the outside of the bending limiter, a connecting block is connected to both ends of each semicircular ring, and a bolt one is connected between the connecting blocks.
[0010] Preferably, a middle block is connected to the middle position of the connecting frame, a nut is threadedly connected to the screw rod, and one end of the nut abuts against the end of the connecting frame.
[0011] Preferably, the size head structure is arranged at both ends of the bending limiter, and the small head structure is arranged at one end of the half circular ring.
[0012] Preferably, two communication blocks are symmetrically connected to the half circular ring, and the two communication blocks are arranged at 45° and 135° directions of the half circular ring arranged horizontally at both ends.
[0013] Therefore, the bending limiter has the advantages that:
[0014] 1. The screw thread connection structure of the screw and the connecting frame is adopted to flexibly adjust the butt joint angle of the bending limiter, effectively solves the problem of the intermediate section not being occluded during underwater repair installation, and adapts to the complex construction environment of the seabed.
[0015] 2. The structure of the butt joint half circular ring connecting adjacent connecting frames is adopted to enhance the connection stability of the overall tooling, avoid the loosening failure problem caused by ocean current and tidal impact, and guarantee the protection effect of the submarine cable. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 Fig. 1 shows a structure schematic diagram of the overall fixed tooling according to an embodiment of the present application;
[0017] Figure 2 Fig. 4 shows an explosion structure schematic diagram of the half circular ring connection according to an embodiment of the present application;
[0018] Figure 3 Fig. 5 shows a structure schematic diagram of the screw connection according to an embodiment of the present application;
[0019] Figure 4 Fig. 6 shows a structure schematic diagram of the bending limiter according to an embodiment of the present application.
[0020] LEGEND:
[0021] 1. Bending limiter; 2. Connecting hole; 3. Half circular ring; 4. Connecting block; 5. Bolt one; 6. Communication block; 7. U-shaped frame; 8. Bolt two; 9. Screw; 10. Connecting frame; 11. Nut; 12. Intermediate block. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0023] Please refer to Figures 1-4 The utility model provides a technical scheme:
[0024] The utility model provides a kind of fixing tool for submarine cable bending limiter, including bending limiter 1, bending limiter 1 is set in the outside of submarine cable, annular groove is set in the outside of bending limiter 1, the annular groove is set with semicircle ring 3, semicircle ring 3 outside is connected with intercommunication block 6, intercommunication block 6 is rotatably connected with U-shaped frame 7 by bolt two 8, U-shaped frame 7 one end is connected with screw rod 9, screw rod 9 is connected with connecting frame 10, and the both ends of connecting frame 10 are internally threaded tube structure, and internally threaded tube is screw connected on screw rod 9.
[0025] Specifically, as shown in Figure 1 Connecting hole 2 is connected with bolt for stabilizing the butt joint state between two groups of bending limiter 1, and the connection of bending limiter 1 is completed through connecting hole 2.
[0026] Specifically, as shown in Figure 2 Two groups of semicircle ring 3 are connected with the outside of bending limiter 1, and the both ends of semicircle ring 3 are connected with connecting block 4, and connecting block 4 is connected with bolt one 5, and two groups of semicircle ring 3 can form complete ring structure after butt joint, and the ring can be set in the annular groove on bending limiter 1.
[0027] Specifically, as shown in Figure 3 Intermediate block 12 is connected in the middle position of connecting frame 10, and nut 11 is screw connected on screw rod 9, and one end of nut 11 is abutted on the end of connecting frame 10, the structural strength of connecting frame 10 is improved through intermediate block 12, and the firmness of screw rod 9 can be effectively guaranteed after connecting with both ends screw rod 9 subsequently.
[0028] Specifically, as shown in Figure 2 The both ends of bending limiter 1 are big-end and small-end structure, and one end of small-end structure is matched with semicircle ring 3, and the layer-by-layer nested connection of multiple groups of bending limiter 1 is facilitated through big-end and small-end structure, and the convenience of connection is improved.
[0029] Specifically, as shown in Figure 1 Two intercommunication blocks 6 are symmetrically connected on semicircle ring 3, and the both ends of two intercommunication blocks 6 are arranged on 45 ° and 135 ° direction on horizontally placed semicircle ring 3, and the stability of connection between submarine cable bending limiter can be guaranteed to the greatest extent through the structure.
[0030] In summary, the submarine cable bending limiter fixing tool provided by the embodiment can effectively avoid the bending of the submarine cable.
[0031] In order to fix the structure of the submarine cable, the bending limiter 1 is usually sleeved outside the submarine cable. When the bending limiters 1 are abutted against each other, the abutted ends are connected. The structure can effectively avoid the bending of the submarine cable. However, due to the complex submarine connection environment, the submarine cable cannot be always laid in a straight line, so the bending limiters 1 cannot be always connected in a straight line, that is, when the cable needs to be slightly bent and guided, the semicircular rings 3 can be connected between the bending limiters 1. The semicircular rings 3 are connected with each other through the connecting frames 10. Since the U-shaped frame 7 and the communication block 6 are not tightly connected, and the semicircular ring 3 and the bending limiter 1 are not tightly connected, there are gaps between the connecting structures, so that the submarine cable can be slightly deflected. When a plurality of fixing tools are connected, the submarine cable can be bent at a large angle, so as to adapt to various installation environments.
[0032] The screw rod 9 is connected with a nut 11. One end of the nut 11 abuts against the middle block 12, so as to stabilize the connection between the screw rod 9 and the connecting frame 10.
[0033] The above description of the embodiments enables those skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fixing fixture for a submarine cable bending limiter, comprising a bending limiter (1), characterized in that, The bending limiter (1) is sleeved on the outside of the submarine cable. An annular groove is provided on the outside of the bending limiter (1). A semi-circular ring (3) is sleeved on the annular groove. A connecting block (6) is connected to the outside of the semi-circular ring (3). A U-shaped frame (7) is rotatably connected to the connecting block (6) by bolt two (8). A screw (9) is connected to one end of the U-shaped frame (7). A connecting frame (10) is connected between the screws (9). The two ends of the connecting frame (10) are internally threaded tube structures. The internally threaded tubes are threaded onto the screws (9).
2. The cable bending limiter fixing fixture according to claim 1, characterized in that, The bending limiter (1) has a connecting hole (2), and a bolt is connected in the connecting hole (2) to stabilize the docking state between the two sets of bending limiters (1).
3. The cable bending limiter fixing fixture according to claim 1, characterized in that, The bending limiter (1) has two sets of semicircular rings (3) connected to its outer side. Both ends of the semicircular rings (3) are connected to connecting blocks (4), and bolts (5) are connected between the connecting blocks (4).
4. The cable bending limiter fixing fixture according to claim 1, characterized in that, The connecting frame (10) is connected to a middle block (12) in the middle position, and a nut (11) is threaded onto the screw (9), with one end of the nut (11) abutting against the end of the connecting frame (10).
5. The cable bending limiter fixing fixture according to claim 1, characterized in that, The bending limiter (1) has a large and small head structure at both ends, and it cooperates with the semi-circular ring (3) with one end having a small head structure.
6. The cable bending limiter fixing fixture according to claim 1, characterized in that, Two connecting blocks (6) are symmetrically connected on the semicircular ring (3), and the two connecting blocks (6) are respectively set at 45° and 135° on the horizontally placed semicircular ring (3) at both ends.