Submarine cable fault detection device and method

Abstract

The invention relates to submarine cable fault detection equipment and method, and belongs to the technical field of cable detection. The submarine cable fault detection equipment comprises mobile equipment, a detection cover, a stamping mechanism, a detector body and a wire lifting device; the detection cover is arranged on the mobile equipment; the stamping mechanism is arranged on the mobile equipment; the output end of the stamping mechanism is positioned in the detection cover; the detector body is arranged in the detection cover; the wire lifting device is rotationally arranged on the detector body, and a driving mechanism for driving the wire lifting device to rotate is arranged on the detector body. A protective cover and a pressing plate are arranged on the detection cover; the pressing plate is located at one end of the detection cover away from the protective cover; the pressing plate is rotationally connected with the detection cover; the detection cover is provided with an adjusting device used for adjusting the inclination angle of the pressing plate. The cable is lifted from the ground through the cable lifting device and moved to the detector body for detection, so that the detection reliability can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to a submarine cable fault detection device and method. Background Art

[0002] Submarine cables, as telecommunication transmission facilities laid on the seabed, play a vital role. They are carefully wrapped with insulating materials to ensure stable and reliable operation in various harsh submarine environments. Submarine cables are mainly divided into two categories: submarine communication cables and submarine power cables, which respectively undertake the important tasks of submarine communication and power transmission. With the rapid development of science and technology, modern submarine cables generally use advanced optical fibers as transmission materials, which enables telephone and Internet signals to be transmitted at higher speeds and with more stable quality.

[0003] Chinese patent announcement number CN106443366B discloses a submarine cable maintenance device, which belongs to the technical field of cable maintenance equipment. It solves the problem that the existing submarine cable breakpoint detection is difficult. The submarine cable maintenance device includes a main body, a detection hole is opened on the main body, and an electromagnetic induction coil is arranged on the main body. The submarine cable maintenance device also includes two guide rings, and an adjustment mechanism is arranged between the main body and the guide ring. The guide ring is connected to a buoyancy ball, and an air bag is arranged in the buoyancy ball. The main body is connected to an air pump, and the two air bags are connected to the air pump. Under the action of the air pump, the gas in the two air bags can be transferred to each other, and damping parts are arranged on the inner circumference of the lower part of the guide ring. The submarine cable maintenance device can automatically move along the cable and perform breakpoint detection, and the degree of automation is high.

[0004] However, after the cable falls to the seabed, it is usually covered with mud and sand, causing the cable to be buried under the mud and sand. The above-mentioned technical solution only moves along the cable to detect the cable and cannot directly approach the cable, resulting in large errors in the detection results. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a submarine cable fault detection device and method to solve the problem in the prior art that the cable defect detection device cannot directly approach the cable, resulting in large errors in the detection results.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A submarine cable fault detection device comprises a detection cover, the detection cover is arranged on a detection vehicle, and the lower end surface of the detection cover is open; A punching mechanism is arranged outside the detection cover, a detector body is arranged inside the detection cover, and an output end of the punching mechanism is arranged inside the detection cover and at the front side of the detector body; The rear side of the detector body is rotatably connected to one end of two support arms, and the lower surfaces of the other ends of the two support arms are rotatably connected to rolling sleeves; The ends where the two support arms are connected to the detector body are driven by a driving mechanism.

[0007] A further improvement of the present invention is: Preferably, the stamping mechanism includes a high-pressure water pump, which is arranged on the detection vehicle, and the output end of the high-pressure water pump is connected to a delivery pipe, which passes through the detection cover, and the output end of the delivery pipe is connected to a high-pressure nozzle, which is on the front side of the detector body.

[0008] Preferably, the high-pressure nozzle is arranged on the detection cover via a support frame, and an adjusting motor for driving the high-pressure nozzle to rotate is arranged on the support frame.

[0009] Preferably, one end portion where the two support arms are connected to the detector body is close to the side wall of the detection cover, and the other end portion is close to the driving mechanism.

[0010] Preferably, the driving mechanism comprises a sealed shell arranged on the detector body, wherein a driving motor and two driving gears are arranged in the sealed shell, and each driving gear is respectively connected to a rotating shaft of a support arm; and the output end of the driving motor is connected to any one of the driving gears.

[0011] Preferably, the width of the rear end of the detection cover is smaller than the width of the front end.

[0012] Preferably, a protective cover is provided at the front end of the detection cover, and a pressure plate is rotatably connected to the rear end of the detection cover.

[0013] Preferably, the pressure plate is connected to an adjusting device, and the adjusting device is connected to the adjusting pressure plate.

[0014] Preferably, a guide groove is provided on the lower end surface of the detector body.

[0015] A monitoring method based on the above submarine cable fault detection device comprises the following steps: S1, the detection cover moves to the top of the cable, and the punching mechanism sprays high-pressure water; S2, the driving mechanism drives the support arms to rotate, and the two support arms drive various rolling sleeves to rotate respectively, pick up the cable, and move it to the bottom of the detector body; S3, the detection vehicle drives the cable to move, the punching mechanism flushes away the mud and sand on the cable, the rolling sleeve picks up the cable, and the detector body detects the cable; S4, after the detection, the cable falls down, and the detection cover 3 moves to cover the cable with mud and sand.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The invention discloses a submarine cable fault detection device, which comprises a detection cover, which is arranged on a detection vehicle, and the lower end surface of the detection cover is open; a punching mechanism is arranged outside the detection cover, and a detector body is arranged inside the detection cover, and the output end of the punching mechanism is arranged inside the detection cover and arranged at the front side of the detector body; the rear side of the detector body is rotatably connected to one end of two support arms, and the lower surface of the other end of the two support arms is rotatably connected to a rolling sleeve; the ends connected to the two support arms and the detector body are driven by a driving mechanism. The device is provided with a punching mechanism in front of the detector body to remove the mud and sand covering the cable, and the driving mechanism drives the wire lifting device to flip so that the wire lifting device picks up the cable and moves it to the detector body, and the cable is detected by the detector body. When the detection vehicle drives the detection cover to move, the cable is gradually flattened, and the mud and sand are guided by the detection cover so that the mud and sand move toward the tail of the detection cover. The cable is lifted from the ground by the wire lifting device and moved to the detector body for detection, thereby ensuring the reliability of the detection.

[0017] Furthermore, the high-pressure nozzle in the punching mechanism is arranged at the front side of the detector body, so that before the detector body detects the front cable, the high-pressure water sprayed by the high-pressure nozzle can remove the mud and sand.

[0018] Furthermore, the high-pressure nozzle is arranged on the detection cover through a support frame, so that the spraying angle of the high-pressure nozzle can be adjusted.

[0019] Furthermore, the two support arms are staggered in design so that when clamping the cable, the cable can be fixed more stably.

[0020] Furthermore, the width of the rear end of the detection cover is smaller than the width of the front end, and the tail of the detection cover is a closed structure, so that the flushed mud and sand can be gathered up, and then the inclination angle of the pressure plate is adjusted by the adjustment device, that is, the height of the lower end of the pressure plate is adjusted. The height of the lower end of the pressure plate corresponds to the thickness of the mud and sand covering the cable, thereby completing the automatic covering operation of the cable and protecting the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 It is a structural cross-sectional view of an embodiment of the present invention; Figure 3 It is a schematic diagram of the local structure of an embodiment of the present invention.

[0022] Figure numerals: 1. Detection vehicle; 101. Protective cover; 102. Fixed frame; 2. Air cushion wheel; 3. Detection cover; 301. Protective cover; 4. Stamping mechanism; 401. High-pressure water pump; 402. Delivery pipe; 403. High-pressure nozzle; 5. Adjustment mechanism; 501. Support frame; 502. Adjustment motor; 6. Press plate; 7. Adjustment device; 8. Wire lifting device; 801. Support arm; 802. Rotating shaft; 803. Rolling sleeve; 9. Driving mechanism; 901. Sealing shell; 902. Driving motor; 903. Driving gear; 10. Detector body; 11. Guide groove. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing 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 cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Embodiment 1 like Figure 1-Figure 3As shown, a submarine cable fault detection device proposed by the present invention includes a mobile device, a detection cover 3, a stamping mechanism 4, a detector body 10 and a wire lifting device 8.

[0027] The detection cover 3 is arranged on a mobile device, and the mobile device can move with the detection cover 3. The lower end surface of the detection cover 3 is arranged as an opening. The mobile device is a detection vehicle 1. The detection vehicle 1 includes a protective cover 101 and a fixed frame 102. The fixed frame 102 is connected to the upper end of the detection cover 3. The length of the fixed frame 102 is greater than the width of the detection cover 3. The fixed frame 102 can span the detection cover 3. The two ends of the fixed frame 102 are respectively connected to a protective cover 101. The protective cover 101 is arranged on both sides of the detection cover 3. A plurality of air cushion wheels 2 are rotatably arranged inside the protective cover 101. The air cushion wheels 2 are arranged along the length direction of the detection cover 3. A driving component for driving the air cushion wheels 2 to rotate is arranged on the protective cover 101.

[0028] The punching mechanism 4 is arranged on the side of the detection cover 3, the upper end of the punching mechanism 4 is connected to the fixed frame 102, and the output end of the punching mechanism 4 is located in the detection cover 3; a detector body 10 is arranged at the center position in the detection cover 3, and the wire lifting device 8 is rotatably arranged on the detector body 10, and a driving mechanism 9 for driving the wire lifting device 8 to rotate is arranged on the detector body 10.

[0029] With the forward direction of the entire detection device set as forward and the relative direction set as backward, a protective cover 301 is provided at the front end of the detection cover 3, and a pressure plate 6 is provided at the other end; the pressure plate 6 is located at the end of the detection cover 3 away from the protective cover 301, the pressure plate 6 is rotatably connected to the detection cover 3, and the rotating shaft of the pressure plate 6 is parallel to the end surface to which the pressure plate 6 is connected, and is horizontally set, so that the pressure plate 6 can be flipped up and down relative to the detection cover 3; an adjusting device 7 for adjusting the inclination angle of the pressure plate 6 is provided on the detection cover 3, and the angle of the pressure plate 6 can be adjusted by the adjusting device 7, thereby adjusting the thickness of the mud and sand that can cover the cable.

[0030] The detection device is provided with a moving assembly, specifically including a driving device such as a propeller, which is used to drive the entire detection device to move underwater.

[0031] A guide groove 11 is provided on the lower end surface of the detector body 10. The detection end of the detector body 10 is on the lower end surface of the detector body 10. The cable located underground is picked up and lifted to the bottom of the detector body 10 and located at the guide groove 11, which makes it convenient for the detector body 10 to get close to the cable for detection and processing.

[0032] In the present invention, the wire lifting device is driven to flip by a driving mechanism, so that the wire lifting device picks up the cable and moves it to the detector body, and the cable is detected by the detector body. When the detection vehicle drives the detection cover to move, the cable is gradually flattened, and the mud and sand are guided by the detection cover, so that the mud and sand move toward the tail of the detection cover, and the tail of the detection cover is a closing structure, so that the mud and sand that rush out can be collected, and then the inclination angle of the pressure plate is adjusted by the adjustment device, that is, the height of the lower end of the pressure plate is adjusted. The height of the lower end of the pressure plate corresponds to the thickness of the mud and sand covering the cable, thereby completing the automatic covering operation of the cable and protecting the cable. The cable is lifted from the ground by the wire lifting device and moved to the detector body for detection, thereby ensuring the reliability of the detection of submarine cable fault detection equipment and method.

[0033] The submarine cable fault detection method in the above process includes the following steps: S1, move the detection cover 3 to the top of the cable by moving the assembly; S2. The detection cover 3 is supported by the detection vehicle 1, and a high-pressure water flow is sprayed by the punching mechanism 4 to flush away the mud and sand around the cable portion to be detected. The angle of the water sprayed by the punching mechanism 4 can be adjusted in this process. The mud and sand flushed away in this process are blocked by the detection cover 3. When the detection cover 3 is removed, it continues to cover the cable; S3, driving the wire lifting device 8 to flip through the driving mechanism 9, so that the wire lifting device 8 picks up the cable and moves it to the detector body 10; S4, the mobile device moves along the cable, the punching mechanism 4 flushes away the mud and sand on the cable, the wire lifting device 8 picks up the cable, and the cable is tested by the detector body 10; S5. After the detection, the cable falls down, and the mud and sand in the detection cover 3 continue to cover the cable to protect the cable.

[0034] In this embodiment, the air cushion wheel 2 is driven to rotate by the detection vehicle 1, and the air cushion wheel 2 can drive the detection vehicle 1 to move, thereby driving the detection cover 3 to move, and the mud and sand above the cable are flushed out by the punching mechanism 4, and the mud and sand are blocked by the protective cover 301 to prevent the mud and sand from escaping completely. After the mud and sand above the cable are flushed out, the cable buried in the mud and sand is exposed, and the wire lifting device 8 is driven to flip by the driving mechanism 9, so that the wire lifting device 8 picks up the cable and moves it to the detector body 10, and the cable is detected by the detector body 10. When the detection vehicle 1 drives the detection cover 3 to move, the cable is gradually flattened, and the mud and sand are guided by the detection cover 3, so that the mud and sand move toward the tail of the detection cover 3, and the tail of the detection cover 3 is a closing structure, so that the flushed mud and sand can be gathered up, and then the inclination angle of the pressing plate 6 is adjusted by the adjusting device 7, that is, the height of the lower end of the pressing plate 6 is adjusted, and the height of the lower end of the pressing plate 6 corresponds to the thickness of the mud and sand covering the cable, thereby completing the automatic covering operation of the cable, and protecting the cable.

[0035] Embodiment 2 like Figure 1-Figure 3 As shown, the present invention proposes a submarine cable fault detection device, wherein the detection cover 3 is arranged on the mobile device; the stamping mechanism 4 is arranged on the mobile device and its output end is located in the detection cover 3; the detector body 10 is arranged in the detection cover 3; the wire lifting device 8 is rotatably arranged on the detector body 10, and the detector body 10 is provided with a driving mechanism 9 for driving the wire lifting device 8 to rotate.

[0036] The detection cover 3 is provided with a protective cover 301 and a pressing plate 6; the pressing plate 6 is located at one end of the detection cover 3 away from the protective cover 301; the pressing plate 6 is rotatably connected to the detection cover 3; the detection cover 3 is provided with an adjusting device 7 for adjusting the tilt angle of the pressing plate 6. The mobile device includes a detection vehicle 1, and a plurality of air-cushion wheels 2 that are rotatably arranged on the detection vehicle 1, and a driving component for driving the air-cushion wheels 2 to rotate is provided on the detection vehicle 1.

[0037] In this embodiment, the stamping mechanism 4 includes a high-pressure water pump 401 arranged on the mobile device, a delivery pipe 402 connected to the output end of the high-pressure water pump 401, and a high-pressure nozzle 403 rotatably arranged in the detection cover 3 and connected to the delivery pipe 402; the detection cover 3 is provided with an adjustment mechanism 5 for driving the high-pressure nozzle 403 to rotate. The adjustment mechanism 5 includes a support frame 501 vertically arranged on the detection cover 3, and an adjustment motor 502 arranged on the support frame 501, and the output shaft of the adjustment motor 502 is perpendicular to the support frame 501; the high-pressure nozzle 403 is rotatably arranged on the support frame 501, and the output end of the adjustment motor 502 is connected to the high-pressure nozzle 403, so that the high-pressure nozzle 403 can be flipped relative to the horizontal direction. The adjustment mechanism 5 and the high-pressure nozzle 403 are arranged in front of the detection device 301.

[0038] In this embodiment, the high-pressure water pump 401 pumps out seawater and transports it to the high-pressure nozzle 403 through the delivery pipe 402, and then sprays it out through the high-pressure nozzle 403. The high-pressure nozzle 403 is driven to flip by adjusting the motor 502, and the inclination angle of the high-pressure nozzle 403 is adjusted so that the high-pressure nozzle 403 is tilted toward the cable, flushing away the mud and sand above the cable, thereby exposing the cable buried under the mud and sand, making it convenient for the cable lifting device 8 to pick up the cable for inspection.

[0039] Embodiment 3 like Figure 1-Figure 3 As shown, the present invention proposes a submarine cable fault detection device, wherein the detection cover 3 is arranged on the mobile device; the stamping mechanism 4 is arranged on the mobile device and its output end is located in the detection cover 3; the detector body 10 is arranged in the detection cover 3; the wire lifting device 8 is rotatably arranged on the detector body 10, and the detector body 10 is provided with a driving mechanism 9 for driving the wire lifting device 8 to rotate.

[0040] The detection cover 3 is provided with a protective cover 301 and a pressing plate 6; the pressing plate 6 is located at one end of the detection cover 3 away from the protective cover 301; the pressing plate 6 is rotatably connected to the detection cover 3; the detection cover 3 is provided with an adjusting device 7 for adjusting the tilt angle of the pressing plate 6. The mobile device includes a detection vehicle 1, and a plurality of air-cushion wheels 2 that are rotatably arranged on the detection vehicle 1, and a driving component for driving the air-cushion wheels 2 to rotate is provided on the detection vehicle 1.

[0041] In this embodiment, the stamping mechanism 4 includes a high-pressure water pump 401 arranged on the mobile device, a delivery pipe 402 connected to the output end of the high-pressure water pump 401, and a high-pressure nozzle 403 rotatably arranged in the detection cover 3 and connected to the delivery pipe 402; the detection cover 3 is provided with an adjustment mechanism 5 for driving the high-pressure nozzle 403 to rotate. The adjustment mechanism 5 includes a support frame 501 vertically arranged on the detection cover 3, and an adjustment motor 502 arranged on the support frame 501, and the output shaft of the adjustment motor 502 is perpendicular to the support frame 501; the high-pressure nozzle 403 is rotatably arranged on the support frame 501, and the output end of the adjustment motor 502 is connected to the high-pressure nozzle 403, so that the high-pressure nozzle 403 can be flipped relative to the horizontal direction. The adjustment mechanism 5 and the high-pressure nozzle 403 are arranged in front of the detection device 301.

[0042] In this embodiment, the wire lifting device 8 includes two support arms 801, a rotating shaft 802 and a rolling sleeve 803; one end of the two support arms 801 is adjacent to but not in contact with each other and is arranged on the detector body 10, and the two support arms 801 are arranged on the rear end surface of the detector body 10, and the rotating shafts of the two support walls 801 are perpendicular to the rear end surface of the detector body 10; the lower surface of the outer end of the support arm 801 is connected to a rotating shaft 802, and the rotating shaft 802 is perpendicular to the lower surface of the support arm 801, and the rolling sleeve 803 is rotatably arranged on the rotating shaft 802, and the rolling sleeve 803 can rotate around the central axis of the rotating shaft 802. After the two rolling sleeves 803 clamp the cable, they drive the rolling sleeves 803 to rotate on the left and right sides of the cable.

[0043] The output end of the driving mechanism 9 is connected to the end of the support arm 801 provided on the support arm 801. The driving mechanism 9 includes a sealed shell 901 provided on the detector body 10, a driving motor 902 provided in the sealed shell 901, and two driving gears 903 provided and respectively provided on the two supporting arms 801; the two driving gears 903 are meshedly connected, and the output end of the driving motor 902 is drivingly connected to any one of the driving gears 903.

[0044] In this embodiment, the driving motor 902 drives the driving gear 903 to rotate, the driving gear 903 drives the support arm 801 to flip, the support arm 801 drives the rotating shaft 802 to move, and the rotating shaft 802 drives the rolling sleeve 803 to move. The two support arms 801 and the two rotating shafts 802 form an M-shaped structure. When the support arm 801 flips downward, it can drive the rolling sleeve 803 to be staggered and crossed together, so as to pick up the cable located underground and lift it to the bottom of the detector body 10 and locate it in the guide groove 11, so that the detector body 10 is close to the cable for detection and processing.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A submarine cable fault detection device, characterized in that: It comprises a detection cover (3), the detection cover (3) being arranged on the detection vehicle (1), and the lower end surface of the detection cover (3) being open; A punching mechanism (4) is arranged outside the detection cover (3), a detector body (10) is arranged inside the detection cover (3), and an output end of the punching mechanism (4) is arranged inside the detection cover (3) and at the front side of the detector body (10); The rear side of the detector body (10) is rotatably connected to one end of two support arms (801), and the lower surfaces of the other ends of the two support arms (801) are rotatably connected to rolling sleeves (803); The ends of the two support arms (801) connected to the detector body (10) are driven by a driving mechanism (9).

2. A submarine cable fault detection device according to claim 1, characterized in that: The punching mechanism (4) comprises a high-pressure water pump (401), the high-pressure water pump (401) being arranged on the detection vehicle (1), the output end of the high-pressure water pump (401) being connected to a delivery pipe (402), the delivery pipe (402) passing through the detection cover (3), the output end of the delivery pipe (402) being connected to a high-pressure nozzle (403), the high-pressure nozzle (403) being located on the front side of the detection instrument body (10).

3. A submarine cable fault detection device according to claim 2, characterized in that: The high-pressure nozzle (403) is arranged on the detection cover (3) via a support frame (501), and an adjustment motor (502) for driving the high-pressure nozzle (403) to rotate is arranged on the support frame (501).

4. A submarine cable fault detection device according to claim 1, characterized in that: The ends of the two support arms (801) connected to the detector body (10) are one close to the side wall of the detection cover (3) and the other close to the driving mechanism (9).

5. The submarine cable fault detection device according to claim 1, characterized in that: The driving mechanism (9) comprises a sealed shell (901) arranged on the detector body (10), wherein a driving motor (902) and two driving gears (903) are arranged inside the sealed shell (901), and each driving gear (903) is connected to a rotating shaft of a support arm (801); and the output end of the driving motor (902) is connected to any one of the driving gears (903).

6. A submarine cable fault detection device according to claim 1, characterized in that: The width of the rear end of the detection cover (3) is smaller than the width of the front end.

7. A submarine cable fault detection device according to claim 1, characterized in that: The front end of the detection cover (3) is provided with a protective cover (301); the rear end of the detection cover (3) is rotatably connected to a pressing plate (6).

8. A submarine cable fault detection device according to claim 7, characterized in that: The pressure plate (6) is connected to an adjusting device (7), and the adjusting device (7) is connected to the adjusting pressure plate (6).

9. A submarine cable fault detection device according to claim 8, characterized in that: A guide groove (11) is provided on the lower end surface of the detector body (10).

10. A monitoring method based on the submarine cable fault detection device according to claim 1, characterized in that: The following steps are involved: S1, the detection cover (3) moves to the upper part of the cable, and at the same time the punching mechanism (4) sprays out a high-pressure water flow; S2, the driving mechanism (9) drives the support arm (801) to rotate, and the two support arms (801) respectively drive various rolling sleeves (803) to rotate, so as to pick up the cable and move it to the bottom of the detector body (10); S3, the detection vehicle (1) drives the cable to move, the punching mechanism (4) flushes away the mud and sand on the cable, the rolling sleeve (803) picks up the cable, and the detector body (10) detects the cable; S4, after the detection, the cable falls down, and the detection cover (3) moves while covering the cable with mud and sand.

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