Cable insulation aging detection device

Abstract

The embodiment of the invention provides a cable insulation aging detection device, and relates to the technical field of cable detection. The electric leakage detection mechanism is mounted on the bottom plate, and the electric leakage detection mechanism is used for carrying out electric leakage detection on a to-be-detected cable; the spraying mechanism is arranged on one side of the electric leakage detection mechanism, and the spraying mechanism is used for spraying fluorescent liquid to the outer wall of the cable; the photographing mechanism is arranged on one side of the spraying mechanism, and the photographing mechanism is used for collecting surface information of the cable; and the cable guide mechanism is arranged on the bottom plate, and the cable guide mechanism is used for driving the cable to sequentially pass through the electric leakage detection mechanism, the spraying mechanism and the photographing mechanism. In the embodiment of the invention, the electric leakage detection of the cable can be realized, and the crack of the outer wall of the cable can be photographed and detected, so that the detection intensity is greatly reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cable detection, and in particular to a cable insulation aging detection device. Background Art

[0002] In the related technology, the submarine cable is immersed in seawater for a long time, which is very susceptible to corrosion by seawater, and easily causes insulation breakdown and aging. Once the cable insulation is aged and damaged, resulting in leakage, the consequences are unimaginable.

[0003] Traditional submarine cable insulation aging detection is relatively cumbersome. For example, when performing aging detection on cables, the cables are usually tested manually using infrared detectors. However, this detection method has the disadvantages of cumbersome detection steps, high labor intensity and low detection efficiency.

[0004] Therefore, it is necessary to provide a new submarine cable insulation aging detection device to solve the above technical problems. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a cable insulation aging detection device, which can conveniently detect whether the cable has leakage, and can also detect cracks on the cable and the size of the cracks.

[0006] The present application provides a cable insulation aging detection device, comprising:

[0007] Base plate;

[0008] A leakage detection mechanism, installed on the bottom plate, and used for performing leakage detection on the cable to be detected;

[0009] A spraying mechanism, disposed on one side of the leakage detection mechanism, and used for spraying fluorescent liquid on the outer wall of the cable;

[0010] A photographing mechanism, arranged on one side of the spraying mechanism, and used for collecting surface information of the cable;

[0011] A cable guiding mechanism is arranged on the bottom plate, and is used to drive the cable to pass through the leakage detection mechanism, the spraying mechanism and the photographing mechanism in sequence.

[0012] Furthermore, the leakage detection mechanism includes a power module and at least one detection component, the power module is used to be electrically connected to the cable, the detection component includes a supporting structure, a detection board and a driving structure, the detection board is a flexible metal structure, the detection board is connected to the supporting structure through the driving structure, and the driving structure is used to drive the detection board to move so that the detection board abuts against the outer wall of the cable.

[0013] Furthermore, the driving structure includes a mounting plate, a movable plate, a transmission screw, a connecting rod and a driving assembly, the mounting plate is fixedly connected to the supporting structure, the transmission screw is rotatably connected to the mounting plate, the movable plate is threadedly connected to the transmission screw, the detection plate is mounted on the movable plate through the connecting rod, and the driving assembly drives the transmission screw to rotate to drive the movable plate to move.

[0014] Furthermore, two spaced-apart mounting plates are installed in the support structure, and a plurality of transmission screws are rotatably installed on the two mounting plates. Two movable plates are provided between the two mounting plates, and each transmission screw is threadedly connected to the movable plate. Each movable plate is installed with a detection plate, and the connecting rods are fixedly installed at both ends of the detection plate.

[0015] Furthermore, three detection components are provided, and the connection lines between the two ends of the detection board in each detection component intersect in the projection along the transmission direction of the cable guiding mechanism.

[0016] Furthermore, the spraying mechanism includes a storage box, a water pump, an annular pipe and a nozzle. The liquid inlet end of the water pump is connected to the storage box, the annular pipe is connected to the liquid outlet end of the water pump through a pipeline, and there are multiple nozzles, which are arranged at intervals along the inner circumference of the annular pipe.

[0017] Furthermore, the spraying mechanism also includes a mounting ring, a splash shield and a flexible coating cloth, the annular tube is fixed to the mounting ring, the splash shield is arranged on a side of the mounting ring close to the leakage detection mechanism, and the flexible coating cloth is arranged on a side of the mounting ring away from the splash shield.

[0018] Furthermore, the photographing mechanism includes a fixing ring, a camera and a fill light, a plurality of the cameras are installed at circumferential intervals on the inner wall of the fixing ring, a plurality of the fill lights are installed on the inner wall of the fixing ring in a circular distribution, and the cameras and the fill lights are alternately arranged.

[0019] Furthermore, the cable guiding mechanism includes a second supporting frame and a guiding rod, the second supporting frame is fixedly mounted on the bottom plate, and the guiding roller assembly is rotatably mounted on the second supporting frame.

[0020] Furthermore, it also includes a winding mechanism, which is arranged on the side of the photographing mechanism away from the spraying mechanism. The winding mechanism includes a third support frame, a winding roller and a driving member. The third support frame is installed on the base plate, and the winding roller is rotatably installed on the third support frame. The driving member is used to drive the winding roller to rotate.

[0021] It can be seen from the above technical solutions that the embodiments of the present application have at least the following beneficial effects:

[0022] In the cable insulation aging detection device provided in the embodiment of the present application, the leakage detection mechanism can detect whether the cable has leakage and insulation; after the spraying mechanism sprays fluorescent liquid on the surface of the cable to be detected, it is easier for the camera mechanism to collect and distinguish cracks and the size of the cracks, thereby improving the accuracy of the camera mechanism in distinguishing cracks. During the detection, the cable guide mechanism is used to drive the cable to pass through the leakage detection mechanism, the spraying mechanism and the camera mechanism in sequence, so as to realize the leakage detection of the cable, and can also take photos of the cracks on the outer wall of the cable for detection, which greatly reduces the detection intensity and improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 A schematic diagram of the structure of a cable insulation aging detection device provided in one embodiment of the present application;

[0025] Figure 2 A schematic structural diagram of a cable insulation aging detection device from another perspective provided in an embodiment of the present application;

[0026] Figure 3 A schematic cross-sectional view of a cable insulation aging detection device provided in one embodiment of the present application;

[0027] Figure 4 This is a partial structural diagram of a leakage detection mechanism in one embodiment of the present application;

[0028] Figure 5 This is a partial structural diagram of a leakage detection mechanism in one embodiment of the present application;

[0029] Figure 6 This is a structural schematic diagram of a detection component of a leakage detection mechanism in an embodiment of the present application;

[0030] Figure 7 for Figure 6 A partial structural diagram of a detection component;

[0031] Figure 8 This is a partial structural schematic diagram of a spraying mechanism in one embodiment of the present application;

[0032] Fig. 9 This is a cross-sectional schematic diagram of a spraying mechanism in one embodiment of the present application;

[0033] Fig.10 This is a structural schematic diagram of a photographing mechanism in one embodiment of the present application;

[0034] Fig.11 This is a structural schematic diagram of a cable guide mechanism in an embodiment of the present application;

[0035] Fig.12 This is a structural schematic diagram of a winding mechanism in one embodiment of the present application;

[0036] Fig.13 This is a block diagram of the detection principle of the insulation resistance of a cable according to an embodiment of the present application.

[0037] Reference numerals:

[0038] 1. Cable;

[0039] 100, bottom plate;

[0040] 200, leakage detection mechanism; 2111, first support frame; 2112, support structure; 212, detection board; 213, driving structure; 2131, mounting plate; 2132, moving plate; 2133, transmission screw; 2134, driving assembly; 214, connecting rod; 215, connecting plate; 216, terminal;

[0041] 300, spraying mechanism; 310, storage box; 320, water pump; 330, mounting ring; 340, splash shield; 350, flexible coating cloth; 360, annular tube; 370, spray head;

[0042] 400, photographing mechanism; 410, fixing ring; 420, camera; 430, fill light;

[0043] 500, cable guide mechanism; 510, second support frame; 520, guide roller assembly; 521, first guide roller; 522, second guide roller;

[0044] 600, winding mechanism; 610, third support frame; 620, winding roller; 630, driving member;

[0045] 700. Cable connection mechanism. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] See also Figure 1 As shown, an embodiment of the present application discloses a cable insulation aging detection device, which can detect whether the cable has leakage and insulation, and can better detect cracks on the cable and the size of the cracks.

[0048] The following will be combined Figures 1 to 12 The cable insulation aging detection device disclosed in the embodiment of the present application is specifically explained and illustrated.

[0049] like Figures 1 to 3 As shown, the cable insulation aging detection device includes a base plate 100, a leakage detection mechanism 200, a spraying mechanism 300, a photographing mechanism 400 and a cable guiding mechanism 500.

[0050] Specifically, the leakage detection mechanism 200 is installed on the base plate 100, and the leakage detection mechanism 200 is used to perform leakage detection on the cable to be detected; the spraying mechanism 300 is installed on the base plate 100 and is arranged on one side of the leakage detection mechanism 200, and the spraying mechanism 300 is used to spray fluorescent liquid on the outer wall of the cable; the photographing mechanism 400 is arranged on one side of the spraying mechanism 300, and the photographing mechanism 400 is used to collect surface information of the cable; the cable guiding mechanism 500 is arranged on the base plate 100, and the cable guiding mechanism 500 is used to drive the cable to pass through the leakage detection mechanism 200, the spraying mechanism 300 and the photographing mechanism 400 in sequence.

[0051] In the embodiment of the present application, the leakage detection mechanism 200 can detect whether the cable has leakage and insulation; the spraying mechanism 300 can spray fluorescent liquid on the surface of the cable to be detected, so that the photographing mechanism 400 can more easily collect and distinguish cracks and the size of the cracks, thereby improving the accuracy of the photographing mechanism 400 in distinguishing cracks.

[0052] In some embodiments of the present application, see Figures 1 to 7 As shown, the leakage detection mechanism 200 includes a power module and at least one detection component, the detection component includes a supporting structure 2112, a detection plate 212 and a driving structure 213, the detection plate 212 is a flexible metal structure, the detection plate 212 is movably connected to the supporting structure 2112 through the driving structure 213, and the driving structure 213 is used to drive the detection plate 212 to move so that the detection plate 212 abuts against the outer wall of the cable.

[0053] In the above embodiment, the detection plate 212 is a flexible metal structure. When the driving structure 213 drives the detection plate 212 to abut against the outer wall of the cable, the detection plate 212 can be surrounded by the outer wall of the cable. Since the detection plate 212 is a flexible metal structure and has a conductive function, if the detection plate 212 contacts the leakage position of the cable, the detection plate and the cable are electrically connected and turned on, so that the detection plate 212 is also charged. In this way, it can be determined whether the cable has leakage.

[0054] It should be noted that the cable to be detected is electrically connected to the power module to provide power to the cable. When the detection board 212 contacts the leakage position of the cable, the detection board 212 is energized, thereby realizing leakage detection. Of course, the detection board 212 can realize leakage detection by detecting the potential change of the contact position of the cable, or it can form a closed loop with the power module and the cable to be detected, and realize leakage detection by checking whether the closed loop is energized.

[0055] In this embodiment, see Figure 3 and Figure 4 The leakage detection mechanism further includes a first support frame 2111, the first support frame 2111 is installed on the bottom plate 100, and the support structure 2112 is installed on the first support frame 2111. The support structure 2112 is in a circular ring shape.

[0056] In some embodiments, the leakage detection mechanism 200 includes a detection board 212, a detection module and a power module. The cable is connected to the detection module through a connecting line, the detection board 212 is electrically connected to the power module, and the power module is electrically connected to the detection module. In this way, the cable can form a closed loop with the power module, the detection module and the detection board 212. When the detection board 212 abuts against the leakage position of the cable, the detection board 212 can be electrically connected to the cable, so that the aforementioned closed loop is turned on. At this time, the position of the detection board 212 is the leakage point of the cable.

[0057] In one possible implementation, see Fig.13 The detection module includes an alarm and a resistance detection module. When the detection module detects that the cable is leaking, the alarm is turned on and alarms to remind the detection personnel that the cable is leaking.

[0058] Furthermore, the detection module also includes a display screen. When the detection module detects that the cable is leaking electricity, the alarm device conducts electricity and sounds an alarm. At the same time, the display screen displays the leakage situation.

[0059] In some embodiments of the present application, the power module includes a power junction box and a voltage regulating module. The voltage regulating module is used to change the power-on voltage of the cable, and by connecting a detection voltage that meets the rated voltage of the cable to the outside of the detection board, when the detection board is not in contact with the cable core but can break through the cable insulation to make the above-mentioned circuit conductive, the insulation degree of the cable can also be determined, thereby realizing the detection of the insulation degree of the cable.

[0060] In some embodiments of the present application, see Figures 4 to 7 As shown, the driving structure 213 includes a mounting plate 2131, a mobile plate 2132, a transmission screw 2133, a connecting rod 214 and a driving assembly 2134. The mounting plate 2131 is fixedly connected to the supporting structure 2112, the transmission screw 2133 is rotatably connected to the mounting plate 2131, the mobile plate 2132 is threadedly connected to the transmission screw 2133, the detection plate 212 is mounted on the mobile plate 2132 through the connecting rod 214, and the driving assembly 2134 drives the transmission screw 2133 to rotate to drive the mobile plate 2132 to move. The driving assembly 2134 drives the transmission screw 2133 to rotate, which can drive the mobile plate 2132 to move along the transmission screw 2133, so that the distance between the detection plate 212 and the cable axis can be adjusted, thereby making the leakage detection mechanism 200 suitable for leakage detection of cables with different diameters.

[0061] The detection board 212 can be electrically connected to the power module directly through a wire, or can be electrically connected to the power module through a connecting rod 214 or other components. Exemplarily, the connecting rod 214 is made of a metal material, the connecting rod 214 is electrically connected to the contact plate, and the connecting rod 214 is electrically connected to the power module through other components such as a wire.

[0062] In this embodiment, the driving component 2134 includes a first motor, a first gear, a second gear, a pulley and a belt. The first motor is fixedly mounted on the mounting plate 2131, and the first gear is fixedly mounted on the output shaft of the first motor. The outer side of one transmission screw 2133 is fixedly sleeved with a second gear, and the first gear 211 is meshed with the second gear. The outer sides of multiple transmission screws 2133 are all fixedly sleeved with at least one pulley, and the same belt is sleeved on two corresponding pulleys. After starting, the first motor drives multiple transmission screws 2133 to rotate simultaneously through the first gear, the second gear, multiple pulleys and multiple belts.

[0063] For further information, please see Figures 4 to 7As shown, two spaced mounting plates 2131 are installed in the support structure 2112, a plurality of drive screws 2133 are rotatably mounted on the two mounting plates 2131, two moving plates 2132 are arranged between the two mounting plates 2131, each drive screw 2133 is threadedly connected to the moving plate 2132, each moving plate 2132 is installed with a detection plate 212, and connecting rods 214 are fixedly mounted at both ends of the detection plate 212. Among them, an accommodating cavity for accommodating the cable to be detected is enclosed between the two detection plates 212.

[0064] It should be pointed out that in order to drive the two movable plates 2132 to move toward or away from each other through the same transmission screw 2133, it is necessary to set the rotation direction of the threads corresponding to the threaded connection of the two movable plates 2132 to the opposite direction. In this way, when the transmission screw 2133 is rotated, the two movable plates 2132 can be moved toward each other, so that the two detection plates 212 abut against the outer wall of the cable; or the two movable plates 2132 can be moved in opposite directions, so as to adjust the interval between the two detection plates 212 to adapt to the detection of cables of different diameters.

[0065] In this embodiment, the detection plate 212 is semicircular in shape. The two detection plates 212 are arranged opposite to each other to enclose a substantially circular accommodating cavity, which matches the outer wall of the cable.

[0066] Furthermore, the detection board 212 is specifically a flexible detection copper board.

[0067] In some embodiments of the present application, see Figures 4 to 6 As shown, there are three groups of detection components, and the connection lines between the two ends of the detection plate 212 in each group of detection components intersect along the transmission direction of the cable guide mechanism 500. In this way, the circumferential direction of the cable can be fully wrapped by the detection plate 212, reducing the situation where one group of detection components cannot completely cover the cable along the circumference when performing leakage detection on the cable. At the same time, the three groups of detection components are arranged at intervals along the circumference of the cable, which can increase the contact area between the leakage detection mechanism 200 and the cable, thereby reducing the situation of missed detection caused by poor contact.

[0068] It is worth to understand that in some other embodiments, the number of detection components can also be set to 2 groups, 4 groups or 5 groups as needed.

[0069] In some embodiments of the present application, see Figure 3 , Figure 8 and Fig. 9As shown, the spraying mechanism 300 includes a storage box 310, a water pump 320, an annular tube 360 ​​and a nozzle 370. The liquid inlet end of the water pump 320 is connected to the storage box 310, and the annular tube 360 ​​is connected to the liquid outlet end of the water pump 320 through a pipeline. There are multiple nozzles 370, and the multiple nozzles 370 are arranged at intervals along the inner circumference of the annular tube 360. Among them, the storage box 310 is used to store fluorescent liquid. The annular tube 360 ​​has an escape channel for the cable to pass through. When the outer wall of the cable is cracked, the water pump 320 is started, so that the fluorescent liquid in the storage box 310 is sprayed from the nozzle 370 to the outer wall of the cable, so that the outer wall of the cable is covered with fluorescent liquid. When the cable passes through the camera mechanism 400, the fluorescent liquid can make the cracks more obvious in front of the camera mechanism 400, so that it is convenient for the camera mechanism 400 to collect cable surface information, and then it is convenient to judge whether the cable has cracks.

[0070] Further, see Figure 8 and Fig. 9 As shown, the spraying mechanism 300 also includes a mounting ring 330, a splash shield 340 and a flexible coating cloth 350, the annular tube 360 ​​is fixed to the mounting ring 330, the splash shield 340 is arranged on the side of the mounting ring 330 close to the leakage detection mechanism 200, and the flexible coating cloth 350 is arranged on the side of the mounting ring 330 away from the splash shield 340. The splash shield 340 can reduce the situation where the fluorescent liquid splashes onto the leakage detection mechanism 200, and can effectively ensure the normal operation of the leakage detection mechanism 200. In this embodiment, the flexible coating cloth 350 abuts against the outer wall of the cable, and the fluorescent liquid on the outer wall of the cable can be evenly applied to various positions of the outer wall of the cable in the circumferential direction, which can reduce the situation where the camera mechanism 400 cannot clearly collect the cable surface information due to the absence of fluorescent liquid on the outer wall of the cable.

[0071] In some embodiments of the present application, see Figures 1 to 3 , Fig.10 The photographing mechanism 400 includes a fixing ring 410, a camera 420 and a fill light 430. A plurality of cameras 420 are installed at intervals on the inner wall of the fixing ring 410 in the circumferential direction. A plurality of fill lights 430 are installed on the inner wall of the fixing ring 410 in a circular distribution. The cameras 420 and the fill lights 430 are arranged alternately. In this way, under the illumination of the fill lights 430 and the cooperation of the fluorescent liquid, the camera 420 can clearly take a picture of the outer wall of the cable, so as to clearly obtain the surface information of the outer wall of the cable.

[0072] Furthermore, after the camera 420 takes a picture of the outer wall of the cable, the cracks on the outer wall of the cable and the sizes of the cracks can be detected by analyzing the picture.

[0073] In some embodiments of the present application, see Figures 1 to 3 , Fig.11The cable guide mechanism 500 includes a second support frame 510 and a guide roller assembly 520. The second support frame 510 is fixedly mounted on the bottom plate 100, and the guide roller assembly 520 is rotatably mounted on the second support frame 510. The guide roller assembly 520 is used to support and guide the cable.

[0074] In this embodiment, see Figures 1 to 3 , Fig.11 The guide roller assembly 520 includes a first guide roller 521 and a second guide roller 522, which are arranged at intervals up and down, and define a conveying space for conveying cables. The first guide roller 521 and the second guide roller 522 have a groove in the middle, and the groove is used to accommodate at least part of the cable.

[0075] In some embodiments of the present application, the detection device further includes a winding mechanism 600, which is arranged on a side of the photographing mechanism 400 away from the spraying mechanism 300, and the winding mechanism 600 includes a third support frame 610, a winding roller 620 and a driving member 630, the third support frame 610 is mounted on the bottom plate 100, the winding roller 620 is rotatably mounted on the third support frame 610, and the driving member 630 is used to drive the winding roller 620 to rotate, so as to coil the cable on the winding roller 620. In practical applications, the driving member 630 can specifically be a motor. In the present application, in order to distinguish it from the first motor of the leakage detection mechanism 200, the motor corresponding to the driving member 630 is recorded as the second motor, and the second motor drives the winding roller 620 to rotate to achieve the winding of the cable.

[0076] In this embodiment, see Figures 1 to 3 The second support frame 510 has a plurality of second support frames 510, which are arranged at intervals along the conveying direction of the cable, wherein each second support frame 510 is rotatably mounted with a guide roller assembly 520. Specifically, along the conveying direction of the cable, the second support frames 510 and the guide roller assembly 520 are respectively arranged on both sides of the leakage detection mechanism 200, and the second support frame 510 and the guide roller assembly 520 are also arranged between the photographing mechanism 400 and the winding mechanism 600. In this way, each position of the cable can be supported, and at the same time, the guide roller assembly 520 can be used to guide the cable to ensure the leakage detection effect and the crack detection effect.

[0077] The following describes in detail the cable insulation aging detection device of the embodiment of the present application with a specific embodiment. It should be noted that the following embodiment is only an exemplary description and should not be understood as a limitation on the embodiment of the present application.

[0078] See also Figures 1 to 12As shown, the winding mechanism 600 is provided with a cable connecting mechanism 700, and the cable connecting mechanism 700 includes a positioning ring fixedly mounted on the outer wall of the winding roller 620 and having a sealed side, and a plurality of fixing bolts distributed in a ring are fixedly mounted on the positioning ring, and one end of the connecting wire is fixedly mounted on the positioning ring, and the other end of the connecting wire passes through a rotating shaft which is not fixedly connected to the second motor. The connecting wire and the terminal 216 are connected to a power source through a wire and then connected to a detection module such as a red LED light and an alarm for detecting current leakage in the cable.

[0079] It is worth understanding that the cable insulation aging detection device of the embodiment of the present application can be used to detect insulation aging and cracks of ordinary cables, and can also be used to detect insulation aging and cracks of submarine cables.

[0080] The working principle of the cable insulation aging detection device provided in this application is as follows:

[0081] When conducting insulation aging inspection on a submarine cable, one end of the submarine cable is passed through a plurality of cable guide mechanisms 500, a leakage detection mechanism 200, a spraying mechanism 300 and a photographing mechanism 400, and finally fixed on a winding mechanism 600 through a cable connection mechanism 700;

[0082] Then, the connecting wire and the plurality of terminal posts 216 are connected to a power source through a wire and then connected to an LED lamp or other detection module, and then the first motor is started, the first motor drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives a corresponding transmission screw 2133 to rotate, the transmission screw 2133 drives the other three transmission screws to rotate simultaneously through a pulley and a belt, the four transmission screws drive the moving plate 2132 to move, so that the two moving plates 2132 are close to each other, the moving plate 2132 drives the connecting rod 214 to move, and the connecting rod 214 drives the flexible detection copper plate (i.e., the detection plate 212) and the connecting plate 2 15 movement, the connecting plate 215 drives the terminal 216 to move until the flexible detection copper plate is wrapped around the outside of the submarine cable, and the two flexible detection copper plates are not in contact, and the first motor is turned off. At this time, through the setting of three sets of flexible detection copper plates, the outside of the submarine cable can be wrapped in all directions. When the submarine cable skin falls off and the cable core is leaked, the flexible detection copper plate is in contact with the cable core. At this time, the circuit composed of the flexible detection copper plate, the submarine cable, the connecting rod 214, the connecting plate 215, the terminal 216, the connecting line, the power module and the detection module is energized, and the detection module works (such as the LED light is on, the sound and light alarm alarm light). At the same time, a detection voltage that meets the rated voltage of the submarine cable can be connected to the outside of the flexible detection copper plate through the power supply. When the flexible detection copper plate is not in contact with the cable core, the above-mentioned circuit can be connected by breaking through the submarine cable insulation to realize the detection circuit work, thereby also being able to judge the insulation degree of the submarine cable.

[0083] In this embodiment, the power module includes a power junction box and a voltage regulating module. The power junction box is used for an external power supply, and the voltage regulating module is used to set the corresponding voltage according to the cable specifications; the detection module includes an alarm, a resistance detection module and a display screen. The resistance detection module is used to detect the insulation resistance of the submarine cable, and at the same time display the detected insulation resistance of the submarine cable on the display screen. When the resistance value of the submarine cable detection resistance reaches below the set value, the alarm is activated to alarm.

[0084] Then start the water pump 320, which draws the fluorescent liquid in the storage box 310 into the annular tube 360, and finally sprays the fluorescent liquid on the outer side of the insulation skin of the submarine cable through multiple nozzles 370. In this process, the splash cover 340 and the flexible coating cloth 350 can prevent the fluorescent liquid from leaking out. At the same time, the flexible coating cloth 350 can wrap the submarine cable, so that the excess fluorescent liquid sprayed on the submarine cable is scraped off, so that the cracks on the insulation skin of the submarine cable contain more fluorescent liquid, and at the same time, the insulation skin of the submarine cable without cracks still has less fluorescent liquid, so that the cracks can be easily identified; the excess fluorescent liquid sprayed in the installation ring 330, the flexible coating cloth 350 and the splash cover 340 flows back to the storage box 310 through the support tube;

[0085] The fill light 430 and the camera 420 are powered on. At this time, the outer wall of the submarine cable is coated with fluorescent liquid, and under the illumination of the fill light 430, the cracks on the submarine cable can be more clearly displayed through the camera 420;

[0086] After the submarine cable is inspected, the second motor is started, the second motor drives the rotating shaft to rotate, and the rotating shaft drives the winding roller 620 to rotate, thereby winding the submarine cable.

[0087] Compared with the related art, the submarine cable insulation aging detection device provided by the present invention has the following beneficial effects:

[0088] The cable insulation aging detection device provided in the present application can wrap the surface of submarine cables of different specifications in all directions through the leakage detection mechanism 200, so that it can detect whether submarine cables of different specifications have leakage and insulation degree in cooperation with the cable connection mechanism 700 and the external power module and the detection module; the surface of the submarine cable to be detected can be sprayed with fluorescent liquid through the spraying mechanism 300, and at the same time, the fluorescent liquid can be concentrated on the cracks of the surface of the submarine cable through the flexible coating cloth 350 of the spraying mechanism 300, so that the camera 420 can more easily distinguish the cracks and the size of the cracks under the illumination of the fill light 430; the winding mechanism 600 can be used in cooperation with the cable connection mechanism 700 to fix one end of the submarine cable and automatically wind up the submarine cable, so that the insulation aging of the submarine cable can be easily detected.

[0089] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0090] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0091] In the description of this application, 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 direct connection, or an indirect connection 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 this application can be understood according to specific circumstances.

[0092] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

Claims

1. A cable insulation aging detection device, characterized in that: include: Base plate; A leakage detection mechanism, installed on the bottom plate, and used for performing leakage detection on the cable to be detected; A spraying mechanism, disposed on one side of the leakage detection mechanism, and used for spraying fluorescent liquid on the outer wall of the cable; A photographing mechanism, arranged on one side of the spraying mechanism, and used for collecting surface information of the cable; A cable guiding mechanism is arranged on the bottom plate, and is used to drive the cable to pass through the leakage detection mechanism, the spraying mechanism and the photographing mechanism in sequence.

2. The cable insulation aging detection device according to claim 1, characterized in that: The leakage detection mechanism includes a power module and at least one detection component, the power module is used to be electrically connected to the cable, the detection component includes a supporting structure, a detection board and a driving structure, the detection board is a flexible metal structure, the detection board is connected to the supporting structure through the driving structure, and the driving structure is used to drive the detection board to move so that the detection board abuts against the outer wall of the cable.

3. The cable insulation aging detection device according to claim 2, characterized in that: The driving structure includes a mounting plate, a movable plate, a transmission screw, a connecting rod and a driving assembly. The mounting plate is fixedly connected to the supporting structure, the transmission screw is rotatably connected to the mounting plate, the movable plate is threadedly connected to the transmission screw, the detection plate is mounted on the movable plate via the connecting rod, and the driving assembly drives the transmission screw to rotate to drive the movable plate to move.

4. The cable insulation aging detection device according to claim 3, characterized in that: Two spaced-apart mounting plates are installed in the support structure, and a plurality of transmission screws are rotatably installed on the two mounting plates. Two movable plates are arranged between the two mounting plates, and each transmission screw is threadedly connected to the movable plate. Each movable plate is installed with a detection plate, and the connecting rods are fixedly installed at both ends of the detection plate.

5. The cable insulation aging detection device according to claim 2, characterized in that: There are three detection components, and the connection lines between the two ends of the detection board in each detection component intersect in the projection along the transmission direction of the cable guiding mechanism.

6. The cable insulation aging detection device according to claim 1, characterized in that: The spraying mechanism includes a storage box, a water pump, an annular tube and a nozzle. The liquid inlet end of the water pump is connected to the storage box, and the annular tube is connected to the liquid outlet end of the water pump through a pipeline. There are multiple nozzles, and the multiple nozzles are arranged at intervals along the inner circumference of the annular tube.

7. The cable insulation aging detection device according to claim 6, characterized in that: The spraying mechanism also includes a mounting ring, a splash shield and a flexible coating cloth, the annular tube is fixed to the mounting ring, the splash shield is arranged on a side of the mounting ring close to the leakage detection mechanism, and the flexible coating cloth is arranged on a side of the mounting ring away from the splash shield.

8. The cable insulation aging detection device according to claim 1, characterized in that: The photographing mechanism comprises a fixing ring, a camera and a fill light, a plurality of the cameras are installed at circumferential intervals on the inner wall of the fixing ring, a plurality of the fill lights are installed on the inner wall of the fixing ring in a circular distribution, and the cameras and the fill lights are alternately arranged.

9. The cable insulation aging detection device according to claim 1, characterized in that: The cable guiding mechanism comprises a second supporting frame and a guiding roller assembly, wherein the second supporting frame is fixedly mounted on the bottom plate, and the guiding roller assembly is rotatably mounted on the second supporting frame.

10. The cable insulation aging detection device according to claim 1, characterized in that: It also includes a winding mechanism, which is arranged on the side of the photographing mechanism away from the spraying mechanism. The winding mechanism includes a third support frame, a winding roller and a driving member. The third support frame is installed on the bottom plate, and the winding roller is rotatably installed on the third support frame. The driving member is used to drive the winding roller to rotate.

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