A subsea cable fault detection apparatus

Abstract

The utility model relates to cable fault detection technical field discloses a kind of submarine cable fault detection devices, including detection pipe, the both ends of detection pipe are fixedly connected with support shaft, the outside rotationally connected of support shaft has rotating block, the outside fixedly connected of rotating block has motor, the drive end fixedly connected of motor has rotating column, the outside rotationally connected of rotating column has push block, the one end fixedly connected of push block has rotating sleeve, the outside rotationally connected of support shaft has multiple rotating handles, the outside of multiple rotating handles are slidably connected with auxiliary sleeve, the outside of multiple rotating handles are rotationally connected with rotating wheel. In the utility model, the device is self-adapting clamped by three-stage motion conversion: motor drives helical rotating column, which is converted into push block linear motion by screw pair;Push block drives rotating sleeve to swing, and rotating handle is rotated radially by auxiliary sleeve. When cable is thick, rotating handle angle is small, radius is large, and vice versa, and different specifications of submarine cable are compatible.

Description

Technical Field

[0001] This utility model relates to the field of cable fault detection technology, and in particular to a submarine cable fault detection device. Background Technology

[0002] As a key carrier for marine energy transmission and communication, fault detection of submarine cables is crucial for ensuring the stable operation of marine power systems.

[0003] However, in existing submarine cable fault detection devices, the clamping structure is mostly designed with a fixed size, which makes it difficult to adapt to cables of different diameters. When the detection device encounters cables of different specifications, it always needs to be changed frequently, which is cumbersome and time-consuming, and seriously reduces the detection efficiency. On the other hand, fixed clamping structures are prone to being too loose (causing the detection device to shift) or too tight (damaging the cable sheath) due to size mismatch, which affects the detection accuracy and cable safety. Therefore, a submarine cable fault detection device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a submarine cable fault detection device, which aims to improve the problems of poor compatibility and low efficiency of existing devices in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A submarine cable fault detection device includes a detection tube, with support shafts fixedly connected to both ends of the detection tube. A rotating block is rotatably connected to the outside of the support shafts. A motor is fixedly connected to the outside of the rotating block. A rotating column is fixedly connected to the drive end of the motor. A pushing block is rotatably connected to the outside of the rotating column. A rotating sleeve is fixedly connected to one end of the pushing block. Multiple rotating handles are rotatably connected to the outside of the support shafts. An auxiliary sleeve is slidably connected to the outside of each of the multiple rotating handles. A rotating wheel is rotatably connected to the outside of each of the multiple rotating handles. A replacement component for quick replacement is slidably connected to the outside of each rotating wheel.

[0007] The replacement component includes a retaining shaft, the outer side of which is slidably connected to the outer side of the rotating wheel, and the outer side of which is rotatably connected to a bolt;

[0008] Multiple drive wheels are fixedly connected to the outside of each support shaft, and the outside of multiple auxiliary sleeves are rotatably connected to the outside of the same rotating sleeve.

[0009] The outer part of the rotating sleeve is rotatably connected to the inside of the support shaft, and the rotating sleeve is rotatably connected to multiple auxiliary sleeves through multiple rotating shafts;

[0010] The rotating handle is slidably connected to the outside of the auxiliary sleeve;

[0011] The rotating column has a spiral shape on its outside, and the pushing block has spiral patterns on its surface.

[0012] One end of the clamp is spiral-shaped; the bolt is used to clamp and fix the cable.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the device achieves adaptive clamping through three-stage motion conversion: the motor drives the helical rotating column, which is converted into linear motion of the pushing block through the helical pair; the pushing block drives the rotating sleeve to swing, and the auxiliary sleeve causes the rotating handle to rotate radially. When the cable is thick, the included angle of the rotating handle is small and the radius is large, and vice versa, thus making it compatible with submarine cables of different specifications.

[0015] 2. In this utility model, the replacement components achieve precise clamping through quick-change and adaptation: the clamping shaft uses a spiral structure to cooperate with the rotating wheel and is locked with bolts. In terms of material, different sheaths are matched with corresponding material clamping shaft heads; in terms of size, short clamping shafts with small diameters clamp thin cables, and long clamping shafts with large diameters clamp thick cables. They operate synchronously during linkage, with pre-tightening force to prevent loosening, covering multiple specifications of submarine cables and improving maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a submarine cable fault detection device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the support shaft of a submarine cable fault detection device proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of an auxiliary sleeve for a submarine cable fault detection device proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating handle of a submarine cable fault detection device proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the rotating wheel of a submarine cable fault detection device proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the rotating sleeve of a submarine cable fault detection device proposed in this utility model.

[0022] Legend:

[0023] 1. Detection tube; 2. Support shaft; 3. Rotating block; 4. Motor; 5. Rotating column; 6. Push block; 7. Rotating sleeve; 8. Rotating handle; 9. Auxiliary sleeve; 10. Rotating wheel; 11. Snap pin; 12. Bolt; 13. Drive wheel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1 to 3 , Figure 6 This utility model provides an embodiment of a submarine cable fault detection device, including a detection tube 1, which serves as the main frame and integrated component. Support shafts 2 are fixedly connected to both ends of the detection tube 1, providing coaxial hinge points to ensure transmission coaxiality. A rotating block 3 is rotatably connected to the outside of the support shaft 2, highlighting the location of the power source. A motor 4 is fixedly connected to the outside of the rotating block 3, outputting rotational power. A rotating column 5 is fixedly connected to the drive end of the motor 4, converting rotational motion into axial linear motion. A push block 6 is rotatably connected to the outside of the rotating column 5, transmitting linear motion.

[0026] The rotating column 5 has a spiral shape on its exterior, and the push block 6 has spiral patterns on its exterior. One end of the push block 6 is fixedly connected to a rotating sleeve 7. The rotating sleeve 7 is designed to convert linear motion into reciprocating oscillation, completing a secondary motion conversion. The exterior of the rotating sleeve 7 is rotatably connected to the interior of the support shaft 2. The exterior of the support shaft 2 is rotatably connected to multiple rotating handles 8. The rotating handles 8 are designed as lever actuators to adjust the clamping radius. The exterior of the rotating handles 8 is slidably connected to the exterior of the auxiliary sleeves 9. The exteriors of multiple rotating handles 8 are all slidably connected to auxiliary sleeves 9. The auxiliary sleeves 9 are designed to compensate for the length difference caused by changes in the angle of the rotating handles 8, preventing the mechanism from jamming. The exteriors of multiple auxiliary sleeves 9 are rotatably connected to the exterior of the same rotating sleeve 7. The rotating sleeve 7 is rotatably connected to multiple auxiliary sleeves 9 via multiple rotating shafts. The exteriors of multiple rotating handles 8 are all rotatably connected to rotating wheels 10. The rotating wheels 10 are designed to provide adaptive rotational freedom, improving clamping fit. The exteriors of the rotating wheels 10 are slidably connected to replacement components for quick replacement.

[0027] Reference Figure 4 , Figure 5The replacement component includes a retaining shaft 11, which is designed as a clamping component that directly contacts the cable. One end of the retaining shaft 11 is spiral-shaped. The outer side of the retaining shaft 11 is slidably connected to the outside of the rotating wheel 10, making it easy to slide into the rotating wheel 10 for installation and calibration. The outer side of the retaining shaft 11 is rotatably connected to a bolt 12. The bolt 12 is designed to prevent the retaining shaft 11 from sliding off during underwater operations. The bolt 12 is used to clamp and fix the cable.

[0028] Multiple drive wheels 13 are fixedly connected to the outside of multiple support shafts 2. The drive wheels 13 are designed here to provide axial power and drive the device to move along the length of the cable.

[0029] Working Principle: This submarine cable fault detection device achieves adaptive clamping of cables of different thicknesses through a three-stage motion conversion of "screw drive → swing drive → lever drive": Motor 4 drives the spiral rotating column 5 to rotate, forming a helical pair with the internally spiral-patterned push block 6, converting the rotational motion into the axial linear motion of the push block 6; the rotating sleeve 7, which is fixed to the push block 6, is hinged to the support shaft 2 and swings back and forth around the support shaft 2 as the push block 6 moves. The external auxiliary sleeve 9 slides with the rotating handle 8, converting the swing into the radial rotation of the rotating handle 8 around the support shaft 2, so that the end replacement components can synchronously gather or disperse. When the cable is thicker, the stroke of the push block 6 is greater, the swing angle of the rotating sleeve 7 is steeper, the inward rotation angle of the rotating handle 8 is smaller, and the clamping radius is larger; the opposite is true when the cable is thinner. By controlling the angle of the rotating handle 8, the compatibility and adaptation of submarine cables are achieved, providing core mechanical support for submarine cable fault detection.

[0030] The replacement components of this submarine cable fault detection device, the clamp 11 and bolt 12, achieve precise clamping of cables of different materials and sizes through quick-change and adaptation: one end of the clamp 11 has a spiral structure that mates with the threaded hole of the rotating wheel 10; tightening the bolt 12 locks the cable in place, completing the replacement. In terms of adaptation logic, for lead-sheathed, soft, and easily damaged cables, a rubber-headed clamp 11 is used; for PE-sheathed cables, a silicone-headed clamp 11 is used; and for armored cables, an alloy-toothed clamp 11 is used to avoid scratches or slippage. In terms of size, for thin cables, a short clamp 11 with a small-diameter clamping head is used, allowing for a larger rotation angle with the rotating handle 8 to achieve a tight wrap; for thick cables, a long clamp 11 with a large-diameter clamping head is used to reduce the swing angle of the rotating handle 8 to accommodate radial space. After replacement, the clamp 11 moves in tandem with the rotating wheel 10 and the rotating handle 8. When the rotating handle 8 is driven to rotate radially, the clamp 11 simultaneously converges / disperses towards the center of the cable. The pre-tightening force of the bolt 12 provides self-locking and anti-loosening capabilities, resisting the risk of loosening under ocean current impact. This design enables the device to cover a variety of submarine cables, is compatible with multiple sheath materials, and modular replacement improves maintenance efficiency. It is a key mechanical unit that adapts to complex submarine cable working conditions.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A submarine cable fault detection device, comprising a detection tube (1), characterized in that: Both ends of the detection tube (1) are fixedly connected to a support shaft (2). A rotating block (3) is rotatably connected to the outside of the support shaft (2). A motor (4) is fixedly connected to the outside of the rotating block (3). A rotating column (5) is fixedly connected to the drive end of the motor (4). A pushing block (6) is rotatably connected to the outside of the rotating column (5). A rotating sleeve (7) is fixedly connected to one end of the pushing block (6). Multiple rotating handles (8) are rotatably connected to the outside of the support shaft (2). An auxiliary sleeve (9) is slidably connected to the outside of each of the multiple rotating handles (8). A rotating wheel (10) is rotatably connected to the outside of each of the multiple rotating handles (8). A replacement component for quick replacement is slidably connected to the outside of the rotating wheel (10).

2. The submarine cable fault detection device according to claim 1, characterized in that: The replacement assembly includes a retaining shaft (11), the outer side of which is slidably connected to the outer side of the rotating wheel (10), and the outer side of the retaining shaft (11) is rotatably connected to a bolt (12).

3. The submarine cable fault detection device according to claim 1, characterized in that: Multiple drive wheels (13) are fixedly connected to the outside of the support shaft (2), and the external parts of multiple auxiliary sleeves (9) are rotatably connected to the outside of the same rotating sleeve (7).

4. The submarine cable fault detection device according to claim 1, characterized in that: The outside of the rotating sleeve (7) is rotatably connected to the inside of the support shaft (2), and the rotating sleeve (7) is rotatably connected to multiple auxiliary sleeves (9) through multiple rotating shafts.

5. The submarine cable fault detection device according to claim 1, characterized in that: The rotating handle (8) is slidably connected to the outside of the auxiliary sleeve (9).

6. The submarine cable fault detection device according to claim 1, characterized in that: The rotating column (5) has a spiral shape, and the pushing block (6) has spiral patterns.

7. The submarine cable fault detection device according to claim 2, characterized in that: One end of the clasp (11) is configured as a spiral.

8. The submarine cable fault detection device according to claim 2, characterized in that: The bolt (12) is used to clamp and fix the cable.

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