A device for precise positioning of a submarine cable fault

Abstract

This utility model discloses a precise fault location device for submarine cables, relating to the field of cable testing technology. The utility model includes: a housing, inside which a cable testing machine body is fixedly connected; circular shafts are connected to the upper front ends of the left and right side walls of the housing, rotatably connected to the housing, with their axis perpendicular to the side walls of the housing; a protrusion is connected to the top of the circular shaft, and a cover plate is connected to the protrusion; the cover plate can rotate around the axis of the circular shaft to open or close the housing. This utility model, by setting a main support plate and a secondary support plate, forms a triangular support surface when unfolded. Based on the principle of triangle stability, the three sides support each other to form a stable plane. When operating on complex seabed terrain, whether placed on uneven seabed surfaces or during user movement while carrying the device, the triangular support surface effectively distributes the weight of the device and external forces, ensuring the stability of the cable testing machine body during testing.

Description

Technical Field

[0001] This utility model belongs to the field of cable testing technology, specifically, it relates to a device for accurately locating faults in submarine cables. Background Technology

[0002] Submarine cables are key facilities for marine energy transmission and communication, and their stable operation is crucial. However, during operation, submarine cables are susceptible to damage from external forces, seawater corrosion, and other factors, leading to frequent failures.

[0003] Chinese patent CN216485327U discloses an online precise location device for power cable faults, including a housing with a cable detection machine body fixedly connected inside. Grooves are provided on the upper front of both sides of the housing, and circular shafts with axes perpendicular to the side walls of the housing are rotatably connected to these grooves. Support blocks are eccentrically fixed to the upper sides of the two circular shafts, and cover plates are fixedly connected to the upper ends of the two support blocks. By placing two shoulder straps on the user's arms, the contact plates move forward through the cooperation of the circular shafts, gears, racks, contact plates, and support plates, causing the support plates to rotate counterclockwise via torsion springs. The lower side of the support plates contacts the user's body, dispersing the pressure exerted by the cable fault location device on the user, thus reducing fatigue during fault cable location. However, the support plate of this device is only a flat plate with a small contact area with the human body, which may still cause localized pressure during prolonged carrying, especially for users with varying body sizes, resulting in poor comfort. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a device for accurate location of submarine cable faults, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A precise fault location device for submarine cables includes: a housing, in which a cable detection machine body is fixedly connected; a circular shaft is connected to the upper front end of the left and right side walls of the housing, the circular shaft is rotatably connected to the housing, its axis is perpendicular to the side wall of the housing, a protrusion is connected to the top of the circular shaft, and a cover plate is connected to the protrusion. The cover plate can rotate around the axis of the circular shaft to open or close the housing; gears are fixedly connected to the outer side of the circular shaft, the gears are aligned with the axis of the circular shaft, and the gears are engaged when the cover plate is opened or closed; a waterproof frame is installed at the opening of the housing, the waterproof frame abuts against the bottom end of the cover plate, and a sealing ring is provided at the top of the waterproof frame.

[0007] Optionally, the lower sides of both the left and right sides of the box are provided with sliding grooves, which are located on the outer side wall of the box below the circular shaft.

[0008] Optionally, the gear is meshed with a rack, and a contact plate is fixedly connected to the bottom end of the rack. The contact plate is U-shaped, and both sides of the contact plate are connected to the slide groove via sliders.

[0009] Optionally, a connecting shaft is fixed to the lower middle of both sides of the housing, a torsion spring is connected inside the connecting shaft, a main support plate is connected to the bottom of the connecting shaft, and a secondary support plate is connected to the surface of the main support plate through a waterproof hinge.

[0010] Optionally, the top surface of the main support plate forms a 30°-45° angle with the bottom surface of the box. The main support plate and the secondary support plate can be rotated to unfold 90° to form a triangular support surface, and can be folded and fitted to the box through a snap-fit ​​structure.

[0011] Optionally, carrying straps are fixedly connected to both the left and right sides of the rear of the case, with the lower ends of the carrying straps fixed to the bottom surface of the case and the connection points avoiding the main support plate.

[0012] Optionally, round rods are connected to both the left and right sides of the box. The round rods are perpendicular to the side walls of the box. A telescopic rod is vertically fixed to the front side of the round rod, and a pair of probes are connected to the front end of the telescopic rod.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. By setting up a main support plate and a secondary support plate, the main support plate and the secondary support plate unfold to form a triangular support surface. Based on the principle of triangle stability, the three sides support each other to form a stable plane. When operating on complex seabed terrain, whether placed on uneven seabed or when the user moves the device, the triangular support surface can effectively distribute the weight of the device and external forces, prevent the device from sliding or tipping over, and ensure that the cable inspection machine body remains stable during the inspection process, thereby improving the accuracy of fault location.

[0015] 2. By setting up a waterproof frame, the waterproof frame at the opening of the box is tightly abutted against the bottom of the cover plate, and together with the top sealing ring, a physical barrier is formed to effectively prevent seawater from seeping in and protect the internal cable inspection machine body from corrosion and moisture damage.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure;

[0019] Figure 2 This is a schematic diagram of a partial internal structure of the enclosure;

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0021] Figure 4 This is a schematic diagram of the overall and partial three-dimensional structure.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Housing; 2. Cover plate; 3. Round shaft; 4. Gear; 5. Rack; 6. Slide groove; 7. Contact plate; 8. Main support plate; 9. Secondary support plate; 10. Connecting shaft; 11. Protrusion; 12. Round rod; 13. Telescopic rod; 14. Probe head; 15. Waterproof frame; 16. Sealing ring; 17. Shoulder strap.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Please see Figures 1-4 As shown, this embodiment provides a precise fault location device for submarine cables, including: a housing 1, in which a cable detection machine body is fixedly connected; a circular shaft 3 is connected to the upper front end of the left and right side walls of the housing 1, the circular shaft 3 is rotatably connected to the housing 1, its axis is perpendicular to the side wall of the housing 1, a protrusion 11 is connected to the top of the circular shaft 3, and a cover plate 2 is connected to the protrusion 11. The cover plate 2 can rotate around the axis of the circular shaft 3 to open or close the housing 1. Gears 4 are fixedly connected to the outer side of the circular shaft 3, the gears 4 are coincident with the axis of the circular shaft 3, and the gears 4 are linked when the cover plate 2 is opened or closed; a waterproof frame 15 is installed at the opening of the housing 1, the waterproof frame 15 abuts against the bottom end of the cover plate 2, and a sealing ring 16 is provided at the top of the waterproof frame 15.

[0027] The housing 1 serves as the carrier of the entire device, providing installation space for the cable inspection machine body and forming the basic structure for realizing the cable fault location function. The cable inspection machine body is the core component, responsible for detecting and analyzing faults in submarine cables. Through the cooperation of the round shaft 3, the protrusion 11, and the cover plate 2, a simple and stable rotating opening and closing mechanism is formed. Users can easily open or close the housing 1 by rotating the cover plate 2 to perform equipment inspection, maintenance, or component replacement. At the same time, the gear 4 enables the opening and closing action of the cover plate 2 to produce a linkage effect, providing a power transmission basis for the coordinated work of subsequent structures such as the main support plate 8. The waterproof frame 15 fits tightly against the bottom of the cover plate 2, and together with the sealing ring 16 at the top of the waterproof frame 15, it can effectively prevent seawater from entering the interior of the housing 1, prevent the cable inspection machine body from being damaged by moisture, improve the waterproof performance and reliability of the device, and ensure its long-term stable operation in the complex underwater environment.

[0028] In this embodiment, grooves 6 are provided on the lower sides of both sides of the housing 1. The grooves 6 are located on the outer side wall of the housing 1 below the round shaft 3 and open into the outer side wall. Gear 4 meshes with rack 5. A contact plate 7 is fixedly connected to the bottom end of rack 5. The contact plate 7 is U-shaped, and both sides of the contact plate 7 are connected to the grooves 6 via sliders. Connecting shafts 10 are fixed to the lower middle ends of both sides of the housing 1. Torsion springs are connected inside the connecting shafts 10. A main support plate 8 is connected to the bottom end of the connecting shaft 10. A secondary support plate 9 is connected to the surface of the main support plate 8 via a waterproof hinge. The top surface of plate 8 forms a 30°-45° angle with the bottom surface of the box 1. The main support plate 8 and the secondary support plate 9 can be rotated to unfold 90° to form a triangular support surface, and can be folded and fitted to the box 1 through a buckle structure. The left and right sides of the rear side of the box 1 are fixedly connected with shoulder straps 17. The lower end of the shoulder straps 17 is fixed to the bottom surface of the box 1 and the connection point avoids the main support plate 8. The front and rear sides of the box 1 are connected with round rods 12. The round rods 12 are perpendicular to the side wall of the box 1. The front side of the round rods 12 is vertically fixedly connected with telescopic rods 13. The front end of the telescopic rods 13 is connected with a pair of probes 14.

[0029] The groove 6 and the slider provide a guide track for the sliding of the abutment plate 7, restricting its direction of movement and preventing the abutment plate 7 from deviating or wobbling during movement, thus ensuring the stability of the gear 4 and rack 5 transmission. When the cover plate 2 is opened and drives the gear 4 to rotate, the rack 5 moves backward along the groove 6 through the slider, and the concave edge of the U-shaped abutment plate 7 pushes the top of the main support plate 8, triggering the support structure to unfold. When the cover plate 2 is closed, the rack 5 moves forward, the abutment plate 7 resets, and the main support plate 8 folds under the action of the torsion spring.

[0030] When the main support plate 8 needs to be unfolded, the contact plate 7 pushes the top of the main support plate 8 backward, overcoming the torsion spring force and rotating it downward to a horizontal position (angle 0°). At the same time, the secondary support plate 9 flips outward by 90° through the waterproof hinge to form a triangular support surface. When the main support plate 8 needs to be reset, the cover plate 2 closes and moves the contact plate 7 forward. The main support plate 8 automatically folds under the action of the torsion spring force, and the secondary support plate 9 fits the side of the main support plate 8 through the buckle structure.

[0031] The lower end of the shoulder strap 17 is fixed to the bottom surface of the case 1, and the connection point avoids the folding path of the main support plate 8 to prevent interference between the support structure and the shoulder strap 17 when it is unfolded or folded, thereby improving wearing comfort.

[0032] Waterproof round rods 12 (perpendicular to the side walls) are installed on the left and right sides of the housing 1. The round rods 12 can rotate around their own axis to adjust the horizontal angle of the probe head 14 (such as swinging left and right). The front end of the round rods 12 is connected to a waterproof telescopic rod 13 (such as threaded or spring snap type), which can be stretched or shortened along the axis to adjust the front and rear distance of the probe head 14 to adapt to different diameter cables or detection distance requirements. A pair of probe heads 14 are installed at the front end of the telescopic rod 13, and the initial distance is maintained by the built-in spring or magnetic structure. The cable is automatically clamped when it passes through the arc groove between the two.

[0033] Working principle:

[0034] Rotating the cover plate 2 drives the gear 4, which in turn drives the rack 5 to slide the concave contact plate 7, pushing the main and auxiliary support plates 9 to unfold into a triangular surface, providing stable support. When the cover plate 2 is closed, the torsion spring drives the support plate to reset and fold. The round rods 12 and telescopic rods 13 on both sides of the housing 1 can adjust the angle and distance of the probe head 14, allowing it to clamp the cable with a spring to collect signals. The waterproof frame 15, sealing ring 16 and other designs ensure the safe operation of the device underwater. The shoulder strap 17 is designed for easy carrying and is suitable for submarine cable fault detection.

[0035] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A device for precise location of submarine cable faults, characterized in that, include: The housing (1) contains a cable testing machine body fixedly connected inside the housing (1); The upper front end of the left and right side walls of the box (1) is connected to a round shaft (3). The round shaft (3) is rotatably connected to the box (1). Its axis is perpendicular to the side wall of the box (1). The top of the round shaft (3) is connected to a protrusion (11). The protrusion (11) is connected to a cover plate (2). The cover plate (2) can rotate around the axis of the round shaft (3) to open or close the box (1). Gears (4) are fixedly connected to the outer side of the round shaft (3). The gears (4) coincide with the axis of the round shaft (3). When the cover plate (2) is opened or closed, the gears (4) are linked. A waterproof frame (15) is installed at the opening of the box (1). The waterproof frame (15) abuts against the bottom of the cover plate (2), and a sealing ring (16) is provided at the top of the waterproof frame (15).

2. The precise fault location device for submarine cables according to claim 1, characterized in that: The lower sides of both sides of the box (1) are provided with sliding grooves (6), which are located on the outer side wall of the box (1) below the round shaft (3).

3. The precise fault location device for submarine cables according to claim 2, characterized in that: The gear (4) is meshed with a rack (5), and a contact plate (7) is fixedly connected to the bottom end of the rack (5). The contact plate (7) is in the shape of a "U" and the two sides of the contact plate (7) are connected to the slide groove (6) by a slider.

4. The precise fault location device for submarine cables according to claim 1, characterized in that: The lower middle ends of both sides of the box (1) are fixed with connecting shafts (10), and torsion springs are connected inside the connecting shafts (10). The bottom end of the connecting shafts (10) is connected with a main support plate (8), and a secondary support plate (9) is connected to the surface of the main support plate (8) through a waterproof hinge.

5. The precise fault location device for submarine cables according to claim 4, characterized in that: The top surface of the main support plate (8) forms an angle of 30°-45° with the bottom surface of the box (1). The main support plate (8) and the secondary support plate (9) can be rotated to unfold at 90° to form a triangular support surface, and can be folded and fitted to the box (1) through a snap-fit ​​structure.

6. The precise fault location device for submarine cables according to claim 4, characterized in that: The left and right sides of the rear side of the box (1) are fixedly connected with shoulder straps (17), and the lower end of the shoulder straps (17) is fixed to the bottom surface of the box (1) and the connection point avoids the main support plate (8).

7. The precise fault location device for submarine cables according to claim 1, characterized in that: The box (1) is connected to round rods (12) on both the left and right sides. The round rods (12) are perpendicular to the side wall of the box (1). A telescopic rod (13) is vertically fixed to the front side of the round rod (12). A pair of probes (14) are connected to the front end of the telescopic rod (13).

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