An underwater cable fault rapid location device

Abstract

The present invention discloses a device for quickly locating submarine cable faults, including an underwater robot body. A fault detector body is installed at one end of the underwater robot body, and an extension frame and an L-shaped fixing plate are installed at the other end of the underwater robot body. Among them, the L-shaped fixing plate is installed on the top of the underwater robot body. An operating mechanism is installed on the L-shaped fixing plate. The inner cavity of the underwater robot body is divided into an upper cavity and a lower cavity by a partition. A middle vertical plate is installed on the inner side of the bottom of the upper cavity. A J-shaped plate is slidably installed on the middle vertical plate. An airbag is placed on the J-shaped plate. The middle of the airbag is compressed by a pressing mechanism and divided into a left accommodating chamber and a right accommodating chamber. A first telescopic rod is installed in the upper cavity, and the first telescopic rod is in contact with the end face of the J-shaped plate. The side of the upper chamber is open, and the J-shaped plate is located between the first telescopic rod and the opening. This device can achieve the quick location of submarine cable faults.

Description

Technical Field

[0001] The present invention belongs to the field of the structure of fault location devices and relates to a device for quickly locating submarine cable faults. Background Art

[0002] A submarine cable is a wire wrapped with insulating materials, laid under the seabed and underwater of rivers, and used for telecommunication transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Submarine cables are an important part of the construction of cross-sea networking projects and play an important role in the process of realizing the internationalization of power grids and the interconnection of regional power grids. When a submarine cable fails, generally, the approximate location is obtained through equipment detection, and then after the target cable is salvaged manually, the fault point is confirmed.

[0003] In the prior art, when detecting cable faults, directly detecting the discharge sound of the fault point by the acoustic detection method is one of the commonly used detection means. However, it is not easy to exclude the underwater noise interference, and the electronic signal will attenuate due to the influence of distance, resulting in poor positioning effect or even inability to locate, and it is inconvenient to use. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a device for quickly locating submarine cable faults, which can realize the quick location of submarine cable faults.

[0005] To achieve the above purpose, the device for quickly locating submarine cable faults of the present invention includes an underwater robot body. One end of the underwater robot body is installed with a fault detector body, and the other end of the underwater robot body is installed with an extension frame and an L-shaped fixing plate. Among them, the L-shaped fixing plate is installed on the top of the underwater robot body. An operating mechanism is installed on the L-shaped fixing plate. The inner cavity of the underwater robot body is divided into an upper cavity and a lower cavity by a partition. A middle vertical plate is installed on the inner side of the bottom of the upper cavity. A J-shaped plate is slidably installed on the middle vertical plate. An airbag is placed on the J-shaped plate. The middle part of the airbag is pressed by a pressing mechanism and divided into a left accommodation chamber and a right accommodation chamber. A first telescopic rod is installed in the upper cavity, and the first telescopic rod is in contact with the end face of the J-shaped plate. The side of the upper chamber is open, and the J-shaped plate is located between the first telescopic rod and the opening. Self-tapping screws are provided on the extension frame, and the top ends of the self-tapping screws are connected to the operating mechanism. The self-tapping screws are connected to the airbag through a traction rope.

[0006] The extension frame holds the self-tapping screws through a clamping mechanism.

[0007] Substances that react with each other and generate a large amount of gas are respectively contained in the left accommodation chamber and the right accommodation chamber.

[0008] The operating mechanism includes a threaded sleeve. The lower end of the L-shaped fixing plate is fixed to the underwater robot body. The other end of the L-shaped fixing plate is equipped with a waterproof motor. A stable sliding sleeve is arranged in the middle of the L-shaped fixing plate. The threaded sleeve passes through the stable sliding sleeve. The output shaft of the waterproof motor is connected to one end of the threaded rod. The other end of the threaded rod is connected to the upper end of the threaded sleeve. The lower end of the threaded sleeve is equipped with an operating head. The operating head faces the self-tapping screw, and the operating head matches the top end of the self-tapping screw.

[0009] The pressing mechanism includes a rotating pressing plate. A rear vertical plate is installed at the end of the J-shaped plate. A notch is formed on the rear vertical plate. The end of the rotating pressing plate is rotatably installed in the notch through a first rotating shaft. The rotating pressing plate is located above the middle of the J-shaped plate.

[0010] By pressing the middle part of the airbag with the rotating pressing plate to form an intermediate section, the airbag is divided into a left accommodation chamber and a right accommodation chamber by the intermediate section 19.

[0011] An elastic unit is installed on the first rotating shaft.

[0012] The elastic unit includes a torsion spring. Among them, the torsion spring is sleeved on the first rotating shaft. One end of the torsion spring is installed on the groove wall of the notch, and the other end of the torsion spring is installed on the rotating pressing plate.

[0013] The clamping mechanism includes a driving mechanism and two semi-circular clamping sleeves. The two semi-circular clamping sleeves are buckled to form a circular sleeve structure. The self-tapping screw passes through the circular sleeve structure. First racks are arranged on the outer sides of the two semi-circular clamping sleeves. The first racks are slidably installed on the extension frame. The driving mechanism drives the movement of the first racks on the extension frame.

[0014] The driving mechanism includes a U-shaped push rod. The two ends of the U-shaped push rod are slidably installed on the extension frame. A second telescopic rod is installed in the lower cavity. The end of the second telescopic rod extends out of the lower cavity and is connected to the middle of the U-shaped push rod. A second rack is arranged on the side surface of the U-shaped push rod. A bracket is arranged on the extension frame. A column gear is rotatably installed on the bracket. The column gear meshes with the second rack. The first rack meshes with the column gear.

[0015] The present invention has the following beneficial effects:

[0016] When the submarine cable fault rapid positioning device described in the present invention is in specific operation, the underwater robot body is placed into the seabed and close to the cable. The fault detector body is used to detect the cable at a close distance to improve the accuracy. After the fault location is found, the self-tapping screw is fixed to the seabed through the operating mechanism. At the same time, the first telescopic rod is used to push the J-shaped plate to slide out of the underwater robot body along the middle vertical plate. The substances in the left storage bin and the right storage bin are mixed with each other and generate a large amount of gas, causing the airbag to bulge and float to the sea surface. The towing rope fixes the airbag to the self-tapping screw. The accurate cable fault location can be quickly obtained through the airbag and the towing rope on the sea surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a sectional view of the present invention;

[0019] Figure 3 is Figure 2 an enlarged view of area A in

[0020] Figure 4 is a perspective view of a partial area of the J-shaped plate 20 in the present invention;

[0021] Figure 5 is a schematic diagram of a partial area of the torsion spring 26 in the present invention;

[0022] Figure 6 is a schematic structural diagram of a partial section of the semi-circular jacket 12 in the present invention.

[0023] Among them, 1 is the underwater robot body, 2 is the fault detector body, 3 is the L-shaped fixing plate, 4 is the waterproof motor, 5 is the threaded sleeve, 6 is the stable sliding sleeve, 7 is the baffle, 8 is the extension frame, 9 is the self-tapping screw, 10 is the first telescopic rod, 11 is the threaded rod, 12 is the semi-circular jacket, 13 is the middle vertical plate, 14 is the second telescopic rod, 15 is the rotating pressing plate, 16 is the first rotating shaft, 17 is the second rotating shaft, 18 is the operating head, 19 is the middle section, 20 is the J-shaped plate, 21 is the rear vertical plate, 22 is the left storage bin, 23 is the right storage bin, 24 is the column gear, 25 is the U-shaped push rod, 26 is the torsion spring, 27 is the bracket, 28 is the second rack, 29 is the first rack, 30 is the partition board, 31 is the towing rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present invention disclosure. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0025] The schematic structural diagrams according to the disclosed embodiments of the present invention are shown in the accompanying drawings. These figures are not drawn to scale, where for the purpose of clear expression, some details are enlarged and some details may be omitted. The shapes of various regions and layers shown in the figures and their relative sizes and positional relationships are only exemplary. In practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art can design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0026] Embodiment 1

[0027] Reference Figures 1 to 6 , the underwater cable fault rapid positioning device described in the present invention includes an underwater robot body 1. A fault detector body 2 is installed at one end of the underwater robot body 1, and an extension frame 8 and an L-shaped fixing plate 3 are installed at the other end of the underwater robot body 1. Among them, the L-shaped fixing plate 3 is installed on the top of the underwater robot body 1, and an operating mechanism is installed on the L-shaped fixing plate 3. The inner cavity of the underwater robot body 1 is divided into an upper cavity and a lower cavity by a partition 30. A middle vertical plate 13 is installed on the inner side of the bottom of the upper cavity. A U-shaped plate 20 is slidably installed on the middle vertical plate 13. An airbag is placed on the U-shaped plate 20. The middle of the airbag is pressed by a pressing mechanism and divided into a left accommodation chamber 22 and a right accommodation chamber 23. A first telescopic rod 10 is installed in the upper cavity. The first telescopic rod 10 is in contact with the end face of the U-shaped plate 20. The U-shaped plate 20 is pushed to slide along the middle vertical plate 13 by the first telescopic rod 10. A self-tapping screw 9 is clamped on the extension frame 8 by a clamping mechanism. The top end of the self-tapping screw 9 is connected to the operating mechanism. One end of a traction rope 31 is connected to the self-tapping screw 9, and the other end of the traction rope 31 is installed on the airbag.

[0028] When working, the underwater robot body 1 is placed on the seabed and close to the cable. The fault detector body 2 performs a close-range detection on the cable to improve the accuracy. After the fault location is found, the self-tapping screw 9 temporarily stored on the clamping mechanism is fixed to the seabed through the operating mechanism. At the same time, the first telescopic rod 10 pushes the U-shaped plate 20 to slide out of the underwater robot body 1 along the middle vertical plate 13. Substances that react with each other and generate a large amount of gas are respectively installed in the left storage bin 22 and the right storage bin 23, such as calcium carbonate and hydrochloric acid. Under normal circumstances, the left storage bin 22 and the right storage bin 23 are separated from each other by the pressing mechanism. When the U-shaped plate 20 is pushed out of the underwater robot body 1, the pressing mechanism automatically opens, and the substances in the left storage bin 22 and the right storage bin 23 are mixed with each other and generate a large amount of gas, causing the airbag to bulge and float to the sea surface. The towing rope 31 fixes the airbag to the self-tapping screw 9, and the accurate cable fault location can be quickly obtained through the airbag and the towing rope 31 on the sea surface.

[0029] Embodiment 2

[0030] Based on the above Embodiment 1, as Figure 1 、 Figure 2 and Figure 3 shown, the operating mechanism includes a threaded sleeve 5. The lower end of the L-shaped fixing plate 3 is fixed to the underwater robot body 1. The other end of the L-shaped fixing plate 3 is equipped with a waterproof motor 4. A stable sliding sleeve 6 is arranged in the middle of the L-shaped fixing plate 3. The threaded sleeve 5 passes through the stable sliding sleeve 6. The output shaft of the waterproof motor 4 is connected to one end of the threaded rod 11. The other end of the threaded rod 11 is connected to the upper end of the threaded sleeve 5. The lower end of the threaded sleeve 5 is equipped with an operating head 18. The operating head 18 faces the self-tapping screw 9, and the operating head 18 matches the top end of the self-tapping screw 9. When working, the waterproof motor 4 rotates to drive the threaded rod 11 to rotate. When the threaded rod 11 rotates, the threaded sleeve 5 descends along the stable sliding sleeve 6 under the action of the thread, and the operating head 18 is inserted into the groove on the self-tapping screw 9, so that the self-tapping screw 9 is nailed into the seabed.

[0031] Embodiment 3

[0032] Based on the above Embodiment 1 or Embodiment 2, as Figure 3 shown, the pressing mechanism includes a rotating pressing plate 15. The end of the U-shaped plate 20 is equipped with a rear vertical plate 21. A notch is opened on the rear vertical plate 21. The end of the rotating pressing plate 15 is rotatably installed in the notch through a first rotating shaft 16. The rotating pressing plate 15 is located above the middle of the U-shaped plate 20. The middle part of the airbag is pressed by the rotating pressing plate 15 to form an intermediate section 19. The airbag is divided into a left storage bin 22 and a right storage bin 23 through the intermediate section 19.

[0033] It should be noted that the top of the rotating pressing plate 15 matches the inner side of the top of the upper cavity. An elastic unit is installed on the first rotating shaft 16. The rotating pressing plate 15 rotates along the first rotating shaft 16. The top side of the rotating pressing plate 15 is restricted by the inner wall of the top of the upper cavity, so that the bottom side of the rotating pressing plate 15 approaches and clamps the airbag with the top side of the J-shaped plate 20, and the inner side walls in the middle of the airbag are in contact to form isolation. After the J-shaped plate 20 slides out of the upper cavity, the restriction on the top side of the rotating pressing plate 15 is released, and under the action of the elastic unit, the rotating pressing plate 15 rotates upward to release the clamping effect.

[0034] Embodiment Four

[0035] Based on the above Embodiment One, Embodiment Two or Embodiment Three, as Figure 5 shown, the elastic unit includes a torsion spring 26. Among them, the torsion spring 26 is sleeved on the first rotating shaft 16. One end of the torsion spring 26 is installed on the groove wall of the notch, and the other end of the torsion spring 26 is installed on the rotating pressing plate 15. And one end of the torsion spring 26 is restricted by the groove wall of the notch, and the other end of the torsion spring 26 rotates the rotating pressing plate 15 upward along the first rotating shaft 16 under the action of torsion.

[0036] Embodiment Five

[0037] Based on the above Embodiment One, Embodiment Two, Embodiment Three or Embodiment Four, as Figure 4 and Figure 6 shown, the clamping mechanism includes a driving mechanism and two semi-circular clamping sleeves 12. The two semi-circular clamping sleeves 12 are buckled to form a circular sleeve structure. The self-tapping screw 9 passes through the circular sleeve structure. First racks 29 are arranged on the outer sides of the two semi-circular clamping sleeves 12. The first racks 29 are slidably installed on the extension frame 8. The driving mechanism drives the movement of the first racks 29 on the extension frame 8 to adjust the distance between the two semi-circular clamping sleeves 12, and then clamp or release the self-tapping screw 9. Among them, after the operating mechanism rotates the self-tapping screw 9 several turns for pre-installation, the two semi-circular clamping sleeves 12 move away from each other and completely release the self-tapping screw 9. The operating mechanism continues to rotate the self-tapping screw 9 until it is stable. Elastic layers are installed on the inner side walls of the two semi-circular clamping sleeves 12. The elastic layers match the outer side wall of the self-tapping screw 9. Through the setting of the elastic layers, the self-tapping screw 9 can be gently clamped so that it does not fall off and does not affect the rotation of the self-tapping screw 9, and better pre-installation operations can be carried out. Elastic layers are installed on the inner side walls of the two semi-circular clamping sleeves 12. The elastic layers match the outer side wall of the self-tapping screw 9.

[0038] Embodiment Six

[0039] Based on the above Embodiment Five, as Figure 2 and Figure 6As shown, the driving mechanism includes a U-shaped push rod 25. Both ends of the U-shaped push rod 25 are slidably installed on the extension frame 8. A second telescopic rod 14 is installed in the lower cavity. After the end of the second telescopic rod 14 extends out of the lower cavity, it is connected to the middle part of the U-shaped push rod 25. A second rack 28 is arranged on the side surface of the U-shaped push rod 25. A bracket 27 is arranged on the extension frame 8. A column gear 24 is rotatably installed on the bracket 27. The column gear 24 meshes with the second rack 28, and a first rack 29 meshes with the column gear 24. During operation, the U-shaped push rod 25 is pushed by the second telescopic rod 14. The second rack 28 on the U-shaped push rod 25 slides along the extension frame 8 to drive the column gear 24 to rotate, and at the same time drives the first rack 29 to slide along the extension frame 8, so that the two semi-circular clamping sleeves 12 move away from or close to each other.

[0040] Embodiment Seven

[0041] Based on the above Embodiment Six, as Figure 1 and Figure 3 shown, a baffle 7 is rotatably installed on the side surface of the underwater robot body 1 through a second rotating shaft 17. One side of the baffle 7 faces the upper cavity in the underwater robot body 1. A convex platform is arranged on the other side of the baffle 7. The convex platform is in contact with the threaded sleeve 5. The baffle 7 can protect the airbag in the upper cavity. The outer side of the threaded sleeve 5 blocks one side of the baffle 7 to limit the rotation of the baffle 7. When the threaded sleeve 5 moves to the upper side, the baffle 7 can rotate along the second rotating shaft 17 to open the upper cavity.

[0042] The working principle of the present invention is as follows:

[0043] The underwater robot body 1 is placed on the seabed and close to the cable. The cable is closely detected by the fault detector body 2 to improve the accuracy. After the fault location is found, the self-tapping screw 9 temporarily stored on the clamping mechanism is fixed on the seabed through the operating mechanism. At the same time, the first telescopic rod 10 is used to push the J-shaped plate 20 to slide out of the underwater robot body 1 along the middle vertical plate 13. Substances that react with each other and generate a large amount of gas, such as calcium carbonate and hydrochloric acid, are respectively installed in the left storage bin 22 and the right storage bin 23 to inflate the airbag and float it to the sea surface. The towing rope 31 fixes the airbag on the self-tapping screw 9. The accurate cable fault location can be quickly obtained through the airbag and the towing rope 31 on the sea surface.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that modifications or equivalent substitutions can still be made to the specific embodiments of the present invention. Any modification or equivalent substitution that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A rapid positioning device for submarine cable faults, characterized in that, It includes an underwater robot body (1). A fault detector body (2) is installed at one end of the underwater robot body (1), and an extension frame (8) and an L-shaped fixing plate (3) are installed at the other end of the underwater robot body (1). Among them, the L-shaped fixing plate (3) is installed on the top of the underwater robot body (1). An operating mechanism is installed on the L-shaped fixing plate (3). The inner cavity of the underwater robot body (1) is divided into an upper cavity and a lower cavity by a partition plate (30). A middle vertical plate (13) is installed on the inner side of the bottom of the upper cavity. A J-shaped plate (20) is slidably installed on the middle vertical plate (13). An airbag is placed on the J-shaped plate (20). The middle part of the airbag is pressed by a pressing mechanism and divided into a left accommodation chamber (22) and a right accommodation chamber (23). A first telescopic rod (10) is installed in the upper cavity. The first telescopic rod (10) is in contact with the end face of the J-shaped plate (20). The side of the upper cavity is open, and the J-shaped plate is located between the first telescopic rod and the opening. A self-tapping screw (9) is provided on the extension frame (8). The top end of the self-tapping screw (9) is connected to the operating mechanism. The self-tapping screw (9) is connected to the airbag through a traction rope (31). The self-tapping screw (9) is clamped on the extension frame (8) by a clamping mechanism; Substances that react with each other and generate a large amount of gas are respectively contained in the left accommodation chamber (22) and the right accommodation chamber (23); The operating mechanism includes a threaded sleeve (5). The lower end of the L-shaped fixing plate (3) is fixed to the underwater robot body (1). The other end of the L-shaped fixing plate (3) is installed with a waterproof motor (4). A stable sliding sleeve (6) is provided in the middle of the L-shaped fixing plate (3). The threaded sleeve (5) passes through the stable sliding sleeve (6). The output shaft of the waterproof motor (4) is connected to one end of a threaded rod (11). The other end of the threaded rod (11) is connected to the upper end of the threaded sleeve (5). The lower end of the threaded sleeve (5) is installed with an operating head (18). The operating head (18) faces the self-tapping screw (9), and the operating head (18) is matched with the top end of the self-tapping screw (9); The pressing mechanism includes a rotating pressing plate (15). A rear vertical plate (21) is installed at the end of the J-shaped plate (20). A notch is provided on the rear vertical plate (21). The end of the rotating pressing plate (15) is rotatably installed in the notch through a first rotating shaft (16). The rotating pressing plate (15) is located above the middle of the J-shaped plate (20); The clamping mechanism includes a driving mechanism and two semi-circular clamping sleeves (12). The two semi-circular clamping sleeves (12) are buckled to form a circular sleeve structure. The self-tapping screw (9) passes through the circular sleeve structure. First racks (29) are provided on the outer sides of the two semi-circular clamping sleeves (12). The first racks (29) are slidably installed on the extension frame (8). The driving mechanism drives the first racks (29) to move on the extension frame (8); The driving mechanism includes a U-shaped push rod (25). Both ends of the U-shaped push rod (25) are slidably mounted on the extension frame (8). A second telescopic rod (14) is installed in the lower cavity. After the end of the second telescopic rod (14) extends out of the lower cavity, it is connected to the middle part of the U-shaped push rod (25). A second rack (28) is arranged on the side surface of the U-shaped push rod (25). A bracket (27) is arranged on the extension frame (8). A column gear (24) is rotatably mounted on the bracket (27). The column gear (24) meshes with the second rack (28). A first rack (29) meshes with the column gear (24).

2. The submarine cable fault rapid positioning device according to claim 1, characterized in that By rotating the pressing plate (15) to press the middle part of the airbag, an intermediate section (19) is formed. The airbag is divided into a left accommodation chamber (22) and a right accommodation chamber (23) by the intermediate section (19).

3. The submarine cable fault rapid positioning device according to claim 1, characterized in that, An elastic unit is installed on the first rotating shaft (16).

4. The submarine cable fault rapid positioning device according to claim 3, characterized in that, The elastic unit includes a torsion spring (26). Among them, the torsion spring (26) is sleeved on the first rotating shaft (16). One end of the torsion spring (26) is installed on the groove wall of the notch, and the other end of the torsion spring (26) is installed on the rotating pressing plate (15).

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