Underwater cable inspection and cleaning device

Abstract

The invention discloses an underwater cable inspection and cleaning device, and relates to the field of underwater inspection, the underwater cable inspection and cleaning device comprises an inspection device main body, the inner side of the inspection device main body is provided with a transmission mechanism, and the transmission mechanism comprises a first rotating shaft, a motor, and two groups of first gears and second gears; the first rotating shaft is arranged on the inner side of the inspection device body, the motor is arranged on the outer side of the first rotating shaft, the two first gears are arranged on the outer side of the first rotating shaft, and the second gear is arranged between the two first gears. According to the device, algae attachments on the outer side of the cable are cleaned when the device moves forwards along the cable, so that the inspection accuracy of the underwater cable is improved, crustacean animals on the outer side of the underwater cable are scraped by arranging a scraping mechanism, the inspection accuracy is improved, and meanwhile, the inspection efficiency of the underwater cable is improved. The underwater cable is cleaned, and the service life of the underwater cable is prolonged.

Description

Technical Field

[0001] The invention relates to the field of underwater inspection, and in particular to an underwater cable inspection and cleaning device. Background Art

[0002] Submarine cables are cables wrapped with insulating materials and laid on the seabed for telecommunication transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Submarine communication cables are mainly used for communication services. They are expensive but highly confidential. Submarine power cables are mainly used for underwater transmission of high-power electrical energy. They have the same function as underground power cables, except that they are used in different occasions and laid in different ways.

[0003] When inspecting underwater cables, an underwater cable inspection robot is needed. The sensor positioning technology inside the inspection robot is used to automatically plan the route and finally accurately obtain data information. The existing underwater cable inspection robot, during use, surrounds the cable through a detection device, and then moves along the route of the cable, inspecting the outside of the cable while moving.

[0004] In the underwater cable inspection device in the prior art, since the cable is at the bottom of the water for a long time during use, a large amount of algae and crustaceans are attached to the outside of the cable, which makes the inspection work difficult. The attached algae material blocks the detection device and the outer wall of the cable, making the detection accuracy inaccurate, and the crustaceans hinder the detection device from moving forward along the cable, so that the underwater inspection robot cannot move forward smoothly for inspection. Summary of the invention

[0005] Based on this, the object of the present invention is to provide an underwater cable inspection and cleaning device to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an underwater cable inspection and cleaning device, comprising an inspection device body, a transmission mechanism is arranged on the inner side of the inspection device body, and the transmission mechanism comprises a first rotating shaft, a motor, two groups of first gears and a second gear, the first rotating shaft is arranged on the inner side of the inspection device body, and the motor is arranged on the outer side of the first rotating shaft, the two groups of first gears are arranged on the outer side of the first rotating shaft, and the second gear is arranged between the two groups of first gears, and a clamping mechanism is arranged below the transmission mechanism.

[0007] By adopting the above technical solution, when the first shaft rotates, the first gear rotates, and the rotation of the first gear ensures that the clamping mechanism moves, and the rotation of the first shaft ensures that the second gear is driven to rotate.

[0008] The present invention is further configured such that the clamping mechanism includes two groups of clamping blocks, a transmission tooth plate, a cleaning mechanism, a limiting mechanism and a second tooth ring, and the two groups of clamping blocks are symmetrically arranged below the main body of the inspection device, and the transmission tooth plate is arranged above the clamping blocks, the cleaning mechanism is arranged on the side walls of the clamping blocks, and the limiting mechanism is arranged on the side walls of the clamping blocks, and the second tooth ring is arranged at the end of the clamping block.

[0009] By adopting the above technical solution, the meshing connection between the transmission tooth plate and the first gear ensures that when the first gear rotates, the transmission tooth plate is driven to move horizontally, and the fixed connection between the transmission tooth plate and the clamping block ensures that the two groups of clamping blocks are driven to move closer to the middle, and the underwater cable is cleaned by the cleaning mechanism.

[0010] The present invention is further configured such that the cleaning mechanism includes a first limiting groove, a first sliding plate, a first toothed ring and wiping cotton, and the first limiting groove is arranged on the side wall of the clamping block, the first sliding plate is arranged on the side wall of the first limiting groove, the first toothed ring is arranged on the inner side of the first limiting groove, and the wiping cotton is arranged on the inner side of the first toothed ring.

[0011] By adopting the above technical solution, through the sliding groove connection between the first gear ring and the through groove inside the first limiting groove, when the two groups of first gear rings rotate in fit, it is ensured that the two groups of first gear rings form a circular motion. At this time, the underwater cable is cleaned by the wiping cotton following the circular motion of the first gear ring.

[0012] The present invention is further configured such that the first gear ring includes teeth, a limiting column, a telescopic rod and four groups of bonding plates, and the teeth are arranged on the outside of the first gear ring, and the limiting column is arranged below the teeth, the telescopic rod is arranged at the end of the limiting column, and the four groups of bonding plates are symmetrically arranged above the telescopic rod.

[0013] By adopting the above technical solution, when the two groups of first gear rings are fitted together, the fitting plate fits against the outer wall of the underwater cable, and the teeth are pushed upward by the limiting column, so that a meshing connection is formed between the teeth and the second gear, ensuring that when the second gear rotates, it drives the first gear ring to move in a circular motion.

[0014] The present invention is further configured such that a scraping mechanism is provided at the end of the clamping mechanism, and the scraping mechanism includes a second rotating shaft, a scraper blade, a stamping mechanism and a third gear, the second rotating shaft is arranged inside the clamping block, and the scraper blade is arranged at the end of the second rotating shaft, the stamping mechanism is arranged at the end of the scraper blade, and the third gear is arranged on the outside of the second rotating shaft.

[0015] By adopting the above technical solution, when the first gear ring performs circular motion, it drives the second rotating shaft to perform circular motion, and when the second rotating shaft performs circular motion, a meshing connection is formed between the third gear and the second gear ring, thereby ensuring that the second rotating shaft completes its self-rotation during the circular motion, until it drives the scraper to rotate, thereby scraping off the crustaceans on the outer wall of the underwater cable.

[0016] The present invention is further configured such that the stamping mechanism includes a limiting cylinder and fan blades, wherein the limiting cylinder is arranged at the end of the scraper blade, the fan blades are arranged on the inner side of the limiting cylinder, and the fan blades are symmetrical about the center of the second rotating shaft.

[0017] By adopting the above technical solution, when the second rotating shaft rotates, it drives the fan blades to rotate, so that the water flows through the limiting cylinder to rush to the outer wall of the scraper, thereby ensuring the purpose of cleaning the outer wall of the scraper.

[0018] The present invention is further configured such that the transmission tooth plate is fixed above the clamping block, and teeth are arranged on the outer side of the transmission tooth plate, the teeth arranged on the outer side of the transmission tooth plate are meshingly connected with the first gear, and the length of the teeth arranged on the outer side of the first gear is equal to half of the spacing between the two groups of clamping blocks.

[0019] By adopting the above technical solution, the length of the red tooth set on the outer side of the first gear is equal to half of the distance between the two sets of clamping blocks, ensuring that when the two sets of first gear rings are fitted, the first gear and the transmission gear plate are disengaged, ensuring that when the first gear continues to rotate, the transmission gear plate will not continue to move.

[0020] The present invention is further configured such that the outer wall of the first limiting groove is provided with a groove, and the first sliding plate and the groove of the outer wall of the first limiting groove are connected by a sliding groove, the interior of the first limiting groove is provided with a through groove, and the first gear ring and the through groove inside the first limiting groove are connected by a sliding groove.

[0021] By adopting the above technical solution, the groove set on the inner wall of the cleaning mechanism ensures that when the second rotating shaft performs circular motion with the first gear ring, it drives the first sliding plate to complete circular motion at the same time, ensuring that the circular motion of the second rotating shaft will not be limited by the first limiting groove.

[0022] The present invention is further configured such that a fixed installation structure is formed between the second gear ring and the clamping block, and a meshing connection is formed between the teeth on the inner wall of the second gear ring and the third gear.

[0023] By adopting the above technical solution, the meshing connection between the second gear ring and the third gear ensures that when the third gear performs a circular motion with the second rotating shaft, the third gear is driven to rotate.

[0024] The present invention is further configured such that the limiting mechanism includes a second limiting groove, a second sliding plate and a rotating ring, and the second limiting groove is arranged on the inner wall of the clamping block, and the second sliding plate is arranged on the outer wall of the second limiting groove, and the rotating ring is arranged inside the second limiting groove.

[0025] By adopting the above technical solution, when the first gear ring moves in a circular motion, it drives the second rotating shaft to move in a circular motion and the second rotating shaft passes through the rotating ring and the second sliding plate, and is connected through the sliding groove between the rotating ring and the second limiting groove, thereby fixing the circular motion of the second rotating shaft.

[0026] In summary, the present invention mainly has the following beneficial effects:

[0027] 1. The present invention is provided with a transmission mechanism and a clamping mechanism. When the first rotating shaft rotates, the first gear rotates, and the first gear is meshed with the transmission tooth plate bracket to make the transmission tooth plate move horizontally, thereby driving the clamping block to move horizontally, so that the two groups of clamping blocks fit together. At this time, the rotation of the second gear drives the first gear ring to rotate, so that the wiping cotton rotates along the outer wall of the cable, so as to clean the algae attachments on the outside of the cable when the device moves forward along the cable, thereby improving the inspection accuracy of the underwater cable.

[0028] 2. The present invention is provided with a scraping mechanism. When the first gear ring rotates inside the first limiting groove, the second rotating shaft is driven to rotate, and the second rotating shaft and the scraper are fixedly connected, so that the second rotating shaft rotates along the outer wall of the cable. When the second rotating shaft rotates with the first limiting groove, the second rotating shaft is engaged with the second gear ring through the engagement connection between the third gear fixedly arranged on the outer side of the second rotating shaft, so that the second rotating shaft rotates on its own, thereby ensuring the rotation of the scraper, so as to achieve the purpose of scraping crustaceans on the outside of the underwater cable, improve the inspection accuracy, clean the underwater cable, and increase the service life of the underwater cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the appearance of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the cleaning mechanism of the present invention;

[0033] Figure 5 This is a schematic diagram of the enlarged structure of location A of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the limiting mechanism of the present invention;

[0035] Figure 7 It is a structural schematic diagram of the scraping mechanism of the present invention;

[0036] Figure 8 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0037] In the figure: 1. Inspection device body; 2. Transmission mechanism; 201. First rotating shaft; 202. Motor; 203. First gear; 204. Second gear; 3. Clamping mechanism; 301. Clamping block; 302. Transmission tooth plate; 303. Cleaning mechanism; 3031. First limiting groove; 3032. First sliding plate; 3033. First gear ring; 3033a. Tooth; 3033b. Limiting column; 3033c. Telescopic rod; 3033d. Laminating plate; 3034. Wiping cotton; 304. Limiting mechanism; 3041. Second limiting groove; 3042. Second sliding plate; 3043. Rotating ring; 305. Second gear ring; 4. Scraping mechanism; 401. Second rotating shaft; 402. Scraping blade; 403. Punching mechanism; 4031. Limiting cylinder; 4032. Fan blade; 404. Third gear. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0039] The following describes an embodiment of the present invention based on its overall structure.

[0040] An underwater cable inspection and cleaning device, such as Figure 1 - Figure 8 As shown, it includes a patrol inspection device body 1, a transmission mechanism 2 is arranged on the inner side of the patrol inspection device body 1, and the transmission mechanism 2 includes a first rotating shaft 201, a motor 202, two groups of first gears 203 and a second gear 204. The first rotating shaft 201 is arranged on the inner side of the patrol inspection device body 1, and the motor 202 is arranged on the outer side of the first rotating shaft 201, the two groups of first gears 203 are arranged on the outer side of the first rotating shaft 201, and the second gear 204 is arranged between the two groups of first gears 203. A clamping mechanism 3 is arranged below the transmission mechanism 2. When the first rotating shaft 201 rotates, the first gear 203 rotates, and the rotation of the first gear 203 ensures that the clamping mechanism 3 moves, and the rotation of the first rotating shaft 201 ensures that the second gear 204 is driven to rotate.

[0041] See also Figure 1 , Figure 2 and Figure 3 The clamping mechanism 3 includes two groups of clamping blocks 301, a transmission tooth plate 302, a cleaning mechanism 303, a limiting mechanism 304 and a second gear ring 305, and the two groups of clamping blocks 301 are symmetrically arranged below the inspection device body 1, and the transmission tooth plate 302 is arranged above the clamping block 301, the cleaning mechanism 303 is arranged on the side wall of the clamping block 301, and the limiting mechanism 304 is arranged on the side wall of the clamping block 301, and the second gear ring 305 is arranged at the end of the clamping block 301. The meshing connection between the transmission tooth plate 302 and the first gear 203 ensures that when the first gear 203 rotates, the transmission tooth plate 302 is driven to move horizontally, and the fixed connection between the transmission tooth plate 302 and the clamping block 301 ensures that the two groups of clamping blocks 301 are driven to move closer to the middle, and the underwater cable is cleaned by the cleaning mechanism 303.

[0042] See also Figure 3 and Figure 4 The cleaning mechanism 303 includes a first limiting groove 3031, a first sliding plate 3032, a first toothed ring 3033 and a wiping cotton 3034, and the first limiting groove 3031 is arranged on the side wall of the clamping block 301, the first sliding plate 3032 is arranged on the side wall of the first limiting groove 3031, the first toothed ring 3033 is arranged on the inner side of the first limiting groove 3031, and the wiping cotton 3034 is arranged on the inner side of the first toothed ring 3033, and is connected by a sliding groove between the first toothed ring 3033 and the through groove inside the first limiting groove 3031. When the two groups of first toothed rings 3033 are fitted and rotated, it is ensured that the two groups of first toothed rings 3033 form a circular motion. At this time, the underwater cable is cleaned by the wiping cotton 3034 following the circular motion of the first toothed ring 3033.

[0043] See also Figure 3 , Figure 4 and Figure 5 The first gear ring 3033 includes teeth 3033a, a limiting column 3033b, a telescopic rod 3033c and four groups of bonding plates 3033d, and the teeth 3033a is arranged on the outside of the first gear ring 3033, and the limiting column 3033b is arranged below the teeth 3033a, the telescopic rod 3033c is arranged at the end of the limiting column 3033b, and the four groups of bonding plates 3033d are symmetrically arranged above the telescopic rod 3033c. When the two groups of first gear rings 3033 are bonded, the bonding plates 3033d are bonded to the outer wall of the underwater cable, and the teeth 3033a are pushed upward by the limiting column 3033b, so that the teeth 3033a and the second gear 204 are meshed and connected, ensuring that when the second gear 204 rotates, the first gear ring 3033 is driven to move in a circle.

[0044] See also Figure 1 and 7As shown in the figure, a scraping mechanism 4 is arranged at the end of the clamping mechanism 3, and the scraping mechanism 4 includes a second rotating shaft 401, a scraper 402, a punching mechanism 403 and a third gear 404. The second rotating shaft 401 is arranged inside the clamping block 301, and the scraper 402 is arranged at the end of the second rotating shaft 401, the punching mechanism 403 is arranged at the end of the scraper 402, and the third gear 404 is arranged on the outside of the second rotating shaft 401. When the first gear ring 3033 performs a circular motion, it drives the second rotating shaft 401 to perform a circular motion, and when the second rotating shaft 401 performs a circular motion, the third gear 404 and the second gear ring 305 form a meshing connection, which ensures that the second rotating shaft 401 completes its self-rotation during the circular motion until it drives the scraper 402 to rotate, so as to scrape the crustaceans on the outer wall of the underwater cable.

[0045] See also Figure 7 and Figure 8 The stamping mechanism 403 includes a limiting cylinder 4031 and a fan blade 4032, and the limiting cylinder 4031 is arranged at the end of the scraper 402, and the fan blade 4032 is arranged on the inner side of the limiting cylinder 4031, and the fan blade 4032 is symmetrical about the center of the second rotating shaft 401. When the second rotating shaft 401 rotates, the fan blade 4032 is driven to rotate, so that the water flows through the limiting cylinder 4031 to the outer wall of the scraper 402, thereby ensuring the purpose of cleaning the outer wall of the scraper 402.

[0046] See also Figure 2 and Figure 3 The transmission tooth plate 302 is fixed above the clamping block 301, and teeth are arranged on the outer side of the transmission tooth plate 302. The teeth arranged on the outer side of the transmission tooth plate 302 are meshed with the first gear 203. The length of the red teeth arranged on the outer side of the first gear 203 is equal to half of the distance between the two groups of clamping blocks 301. The length of the red teeth arranged on the outer side of the first gear 203 is equal to half of the distance between the two groups of clamping blocks 301. It is ensured that when the two groups of first gear rings 3033 are fitted, the first gear 203 and the transmission tooth plate 302 are disengaged, ensuring that when the first gear 203 continues to rotate, the transmission tooth plate 302 will not continue to move.

[0047] See also Figure 3 and Figure 4 The outer wall of the first limiting groove 3031 is provided with a groove, and the first sliding plate 3032 is connected to the groove on the outer wall of the first limiting groove 3031 by a sliding groove, the interior of the first limiting groove 3031 is provided with a through groove, and the first gear ring 3033 is connected to the through groove inside the first limiting groove 3031 by a sliding groove. The groove provided on the inner wall of the cleaning mechanism 303 ensures that when the second rotating shaft 401 performs a circular motion with the first gear ring 3033, the first sliding plate 3032 is driven to complete the circular motion at the same time, ensuring that the circular motion of the second rotating shaft 401 will not be limited by the first limiting groove 3031.

[0048] See also Figure 3 and Figure 7 The second gear ring 305 and the clamping block 301 are fixedly mounted, and the teeth on the inner wall of the second gear ring 305 are meshingly connected with the third gear 404. The meshing connection between the second gear ring 305 and the third gear 404 ensures that when the third gear 404 performs a circular motion with the second rotating shaft 401, the third gear 404 is driven to rotate.

[0049] See also Figure 3 and Figure 6 The limiting mechanism 304 includes a second limiting groove 3041, a second sliding plate 3042 and a rotating ring 3043, and the second limiting groove 3041 is arranged on the inner wall of the clamping block 301, and the second sliding plate 3042 is arranged on the outer wall of the second limiting groove 3041, and the rotating ring 3043 is arranged inside the second limiting groove 3041. When the first gear ring 3033 moves in a circular motion, it drives the second rotating shaft 401 to move in a circular motion and the second rotating shaft 401 passes through the rotating ring 3043 and the second sliding plate 3042, and is connected through the sliding groove between the rotating ring 3043 and the second limiting groove 3041, so as to fix the circular motion of the second rotating shaft 401.

[0050] The working principle of the present invention is as follows: when it is necessary to inspect the underwater cable, first place the device in the water, and move the device to the top of the underwater cable through the remote control device (existing technology). At this time, continue to move the device downward so that the underwater cable is between the two groups of clamping blocks 301. At this time, start the motor 202 through the remote control device to rotate the first rotating shaft 201, and drive the first gear 203 to rotate through the first rotating shaft 201. Through the meshing connection between the first gear 203 and the transmission tooth plate 302, the transmission tooth plate 302 moves between the two groups of clamping blocks 301, thereby driving the two groups of clamping blocks 301 to move closer to the middle, until when the two groups of clamping blocks 301 are close, the bonding plate 3033d is aligned with the underwater cable. The cable is fitted, so that the tooth 3033a moves up first through the limiting column 3033b until the fitting plate 3033d is in the groove inside the first tooth ring 3033, so that the bottom of the fitting plate 3033d is flush with the inner wall of the first tooth ring 3033. At this time, the meshing connection between the second gear 204 and the tooth 3033a makes the first tooth ring 3033 form a circular motion along the slide groove inside the first limiting groove 3031, driving the wiping cotton 3034 to perform a circular motion. At this time, the wiping cotton 3034 fits with the outer wall of the underwater cable, so that the outer wall of the underwater cable is cleaned, and when the first tooth ring 3033 performs a circular motion, through the fixed connection between the first tooth ring 3033 and the second rotating shaft 401, At this time, the second rotating shaft 401 is fixedly connected with the first sliding plate 3032, and the sliding groove connection between the first sliding plate 3032 and the first limiting groove 3031, so that the second rotating shaft 401 performs a circular motion, and the scraper 402 is fixedly connected with the second rotating shaft 401, so that the scraper 402 performs a circular motion. When the second rotating shaft 401 performs a circular motion, the meshing connection between the third gear 404 on the outer side of the second rotating shaft 401 and the second gear ring 305 causes the second rotating shaft 401 to rotate, thereby driving the scraper 402 to rotate. At this time, the scraper 402 is in contact with the outer wall of the underwater cable, and the scraper 402 rotates to scrape off the crustaceans on the outer side of the underwater cable. At the same time, when When the second rotating shaft 401 rotates, it drives the fan blade 4032 to rotate, so that the water flows through the through hole at the end of the limiting cylinder 4031 to rush to the outer wall of the scraper 402, so as to clean the outer wall of the scraper 402. When the device is used, the motor 202 is reversed, so that the first gear 203 and the transmission gear plate 302 are reversely meshed, and through the working principle of the motor 202, the two groups of first gear rings 3033 are in the initial position, so that the two groups of clamping blocks 301 move in the opposite direction, so that the two groups of clamping blocks 301 release the clamping of the underwater cable, thereby completing the cleaning and maintenance of the underwater cable. At the same time, the device continues to move forward along the underwater cable, and the underwater cable is inspected by the detection device inside the device.

[0051] Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An underwater cable inspection and cleaning device, comprising an inspection device body (1), characterized in that: A transmission mechanism (2) is arranged on the inner side of the inspection device body (1), and the transmission mechanism (2) comprises a first rotating shaft (201), a motor (202), two groups of first gears (203) and a second gear (204); the first rotating shaft (201) is arranged on the inner side of the inspection device body (1), and the motor (202) is arranged on the outer side of the first rotating shaft (201); the two groups of first gears (203) are arranged on the outer side of the first rotating shaft (201), and the second gear (204) is arranged between the two groups of first gears (203); and a clamping mechanism (3) is arranged below the transmission mechanism (2).

2. An underwater cable inspection and cleaning device according to claim 1, characterized in that: The clamping mechanism (3) comprises two groups of clamping blocks (301), a transmission tooth plate (302), a cleaning mechanism (303), a limiting mechanism (304) and a second tooth ring (305), and the two groups of clamping blocks (301) are symmetrically arranged below the inspection device body (1), and the transmission tooth plate (302) is arranged above the clamping block (301), the cleaning mechanism (303) is arranged on the side wall of the clamping block (301), and the limiting mechanism (304) is arranged on the side wall of the clamping block (301), and the second tooth ring (305) is arranged at the end of the clamping block (301).

3. An underwater cable inspection and cleaning device according to claim 2, characterized in that: The cleaning mechanism (303) comprises a first limiting groove (3031), a first sliding plate (3032), a first toothed ring (3033) and a wiping cotton (3034), wherein the first limiting groove (3031) is arranged on the side wall of the clamping block (301), the first sliding plate (3032) is arranged on the side wall of the first limiting groove (3031), the first toothed ring (3033) is arranged on the inner side of the first limiting groove (3031), and the wiping cotton (3034) is arranged on the inner side of the first toothed ring (3033).

4. An underwater cable inspection and cleaning device according to claim 3, characterized in that: The first gear ring (3033) includes teeth (3033a), a limiting column (3033b), a telescopic rod (3033c) and four groups of bonding plates (3033d), and the teeth (3033a) are arranged on the outside of the first gear ring (3033), and the limiting column (3033b) is arranged below the teeth (3033a), the telescopic rod (3033c) is arranged at the end of the limiting column (3033b), and the four groups of bonding plates (3033d) are symmetrically arranged above the telescopic rod (3033c).

5. The underwater cable inspection and cleaning device according to claim 2, characterized in that: A scraping mechanism (4) is provided at the end of the clamping mechanism (3), and the scraping mechanism (4) comprises a second rotating shaft (401), a scraping blade (402), a punching mechanism (403) and a third gear (404); the second rotating shaft (401) is arranged inside the clamping block (301), and the scraping blade (402) is arranged at the end of the second rotating shaft (401); the punching mechanism (403) is arranged at the end of the scraping blade (402); and the third gear (404) is arranged on the outside of the second rotating shaft (401).

6. An underwater cable inspection and cleaning device according to claim 5, characterized in that: The punching mechanism (403) comprises a limiting cylinder (4031) and a fan blade (4032), wherein the limiting cylinder (4031) is arranged at the end of the scraper (402), the fan blade (4032) is arranged on the inner side of the limiting cylinder (4031), and the fan blade (4032) is symmetrical about the center of the second rotating shaft (401).

7. An underwater cable inspection and cleaning device according to claim 2, characterized in that: The transmission tooth plate (302) is fixed above the clamping block (301), and teeth are arranged on the outer side of the transmission tooth plate (302). The teeth arranged on the outer side of the transmission tooth plate (302) are meshingly connected with the first gear (203), and the length of the red teeth arranged on the outer side of the first gear (203) is equal to half of the spacing between the two groups of clamping blocks (301).

8. The underwater cable inspection and cleaning device according to claim 3, characterized in that: The outer wall of the first limiting groove (3031) is provided with a groove, and the first sliding plate (3032) and the groove on the outer wall of the first limiting groove (3031) are connected by a sliding groove, the interior of the first limiting groove (3031) is provided with a through groove, and the first gear ring (3033) and the through groove inside the first limiting groove (3031) are connected by a sliding groove.

9. The underwater cable inspection and cleaning device according to claim 5, characterized in that: The second gear ring (305) and the clamping block (301) are fixedly mounted, and the teeth on the inner wall of the second gear ring (305) and the third gear (404) are meshingly connected.

10. An underwater cable inspection and cleaning device according to claim 2, characterized in that: The limiting mechanism (304) comprises a second limiting groove (3041), a second sliding plate (3042) and a rotating ring (3043), wherein the second limiting groove (3041) is arranged on the inner wall of the clamping block (301), the second sliding plate (3042) is arranged on the outer wall of the second limiting groove (3041), and the rotating ring (3043) is arranged inside the second limiting groove (3041).

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