An electrical in-well cable sheath wear detection device

Abstract

The application discloses an electric well inner cable skin abrasion detection device, and belongs to the technical field of cable detection. The device comprises a device body, a driving mechanism and a rotating wheel rotatably connected to the inner side wall of the device body. The device can control the synchronous movement of each group of supporting blocks through the multi-stage hydraulic parallel transmission inside the device body, thereby realizing the synchronous adjustment of the transmission diameters of each group of rotating wheels, achieving the adaptive adjustment of cables with different diameters, and significantly improving the adaptability. The axial movement is converted into the rotary movement of the rotating wheel through the interaction between the driving shaft and the helical guide groove in the inner side wall of the rotating wheel. The device body is driven to stably travel on the cable surface through a group of motors, and the detection ring and the detection block are driven to rotate and helically travel along the cable axis for automatic detection. Manual detection is not required, the detection coverage is more comprehensive, the detection blind area is effectively reduced, and the detection accuracy and efficiency are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable detection, in particular to a cable skin wear detection device in an electrical well. BACKGROUND

[0002] As a closed and narrow space bearing a large number of cables and electrical equipment, the internal cable of the electrical well is prone to skin wear and corrosion due to long-term effects of heat and humidity, chemical corrosion, vibration and friction, and overheating aging, which seriously threatens the safety of power supply and may cause short circuit, fire and other accidents.

[0003] At present, the detection of the cable in the well mainly relies on manual method, however, due to the extremely small operating space and dim environment in the electrical well, manual detection is not only difficult and inefficient, but also easily leads to incomplete detection area due to blocked vision, resulting in missed detection, which is difficult to meet the needs of comprehensive and efficient safety operation and maintenance.

[0004] How to invent a cable skin wear detection device in an electrical well to improve these problems has become a problem to be solved by the technical personnel in the field. SUMMARY

[0005] In order to make up for the above shortcomings, the present application provides a cable skin wear detection device in an electrical well, which aims to improve the problems proposed in the above background technology.

[0006] The present application is implemented as follows:

[0007] The present application provides a cable skin wear detection device in an electrical well, which comprises a device body, and further comprises:

[0008] The driving mechanism comprises a rotating wheel connected to the inner side wall of the device body, a gear ring is rotatably connected to the inside of the device body, a motor is arranged in the inside of the device body, a sliding groove is arranged on the inner side wall of the rotating wheel, a driving shaft is arranged on the top of the gear ring and drives the rotating wheel to rotate through the sliding groove of the inner side wall of the rotating wheel, and an adjusting assembly is arranged in the inside of the rotating wheel.

[0009] The detection mechanism comprises a detection ring rotatably connected to the inner side wall of the device body, the side wall of the detection ring is connected with a gear ring, the output end of the motor is connected with a gear for driving the gear ring and the gear ring to rotate, the inner side wall of the detection ring is provided with a sealing groove, the sealing groove is sleeved with a detection block, the end of the detection block away from the detection ring is provided with a ball, the top of the detection block is provided with a hydraulic groove, the inside of the hydraulic groove is sleeved with a piston two, the inner side top of the hydraulic groove is provided with a pressure switch, the bottom of the detection ring is provided with a spray pipe one and a spray pipe two, the inside of the detection ring is provided with a storage groove one and a storage groove two, the inside of the detection block is provided with a communication pipe one and a communication pipe two matched with the spray pipe one and the spray pipe two respectively, the storage groove one and the storage groove two are respectively communicated with a feeding pipe one and a feeding pipe two, the feeding pipe one and the feeding pipe two are respectively communicated with the communication pipe one and the communication pipe two, and the inside of the piston two is provided with a through groove one and a through groove two matched with the communication pipe one and the communication pipe two respectively.

[0010] Preferably, the inside of the rotating wheel is provided with a plurality of groups of continuous spiral guide grooves, and the driving shaft is annularly distributed with a plurality of groups along the axis of the gear ring, and the driving shaft and the spiral guide grooves form a sliding pair cooperation, when the gear ring drives the driving shaft to rotate, the axial movement is converted into the rotating movement of the rotating wheel through the interaction between the driving shaft and the spiral guide grooves.

[0011] Preferably, the adjusting assembly comprises an annular groove provided in the inside of the rotating wheel, the inside of the annular groove is sleeved with a driving ring, the inside of the rotating wheel is provided with an adjusting groove, the inside of the adjusting groove is sleeved with an adjusting block, the end of the adjusting block away from the axis of the rotating wheel is provided with a shaft group extending to the outside of the rotating wheel, the end of the shaft group away from the adjusting block is connected with a supporting block, the bottom of the adjusting groove is connected with a cylindrical groove, the driving ring is connected with a group of piston rods movably sleeved with the cylindrical groove, the outside wall of the device body is provided with a distribution groove, the inside of the distribution groove is sleeved with a piston one, the top of the piston one is connected with a rotating disc one, the top of the rotating disc one is rotatably connected with a knob, the knob is threadedly connected with the outside wall of the device body, the bottom of the distribution groove is provided with a group of liquid inlet pipes extending to the end face of the rotating wheel, the device body is provided with a group of grooves rotatably connected with the end face of the rotating wheel, the liquid inlet pipes are in contact with the side wall of the rotating wheel through the grooves, the rotating wheel is provided with a group of communication openings to communicate the grooves with the annular groove, the annular groove and the distribution groove are filled with hydraulic oil, and the piston rod and the adjusting block are also filled with hydraulic oil.

[0012] Preferably, the rotating wheel is uniformly provided with a plurality of groups along the axis of the device body, and the number of the distribution grooves corresponds to the number of the rotating wheels.

[0013] Preferably, the device body is composed of two groups of symmetrical semi-annular structures, the gear ring, the gear ring and the detection ring are all rotatably connected with the device body.

[0014] Preferably, a damping cavity is arranged at the connection between the second feeding pipe and the second communication pipe, a magnetic ring one is sleeved in the damping cavity, a plurality of magnetic ring two which is attracted to the magnetic ring one is arranged on the outer side of the second communication pipe, the second feeding pipe is connected with a third communication pipe extending into the magnetic ring one, a flow channel is arranged on the side wall of the third communication pipe, and a U-shaped groove is arranged on the inner wall of the magnetic ring one and matched with the flow channel; when the magnetic ring one is not affected by external force, the U-shaped groove is not in contact with the flow channel; when the magnetic ring one moves to the position where the U-shaped groove is in contact with the flow channel, the material in the second storage tank flows through the second feeding pipe and the flow channel and the U-shaped groove and then flows through the third communication pipe and further flows into the second communication pipe.

[0015] Preferably, a plurality of one-way air holes are arranged on the side wall of the damping cavity, and the diameter of the air hole for unidirectional outward discharge of the gas in the damping cavity is smaller than the diameter of the air hole for unidirectional inward suction of the external gas.

[0016] Preferably, a plurality of arc springs and piston blocks are arranged in the second storage tank to pump the solution in the second storage tank into the second feeding pipe.

[0017] In summary, the beneficial effects of the present application are as follows:

[0018] 1. The multi-stage hydraulic parallel transmission in the device body can control the synchronous movement of each group of supporting blocks, thereby realizing the synchronous adjustment of the transmission diameters of each group of rotating wheels, realizing the adaptive adjustment of different diameter cables, significantly improving the adaptability, converting the axial movement into the rotating movement of the rotating wheel through the interaction between the driving shaft and the spiral guide groove on the inner wall of the rotating wheel, driving the device body to stably move on the surface of the cable through a group of motors, and driving the detection ring and the detection block to rotate and spiral move along the cable axis to automatically detect, without manual detection, and the detection coverage is more comprehensive, effectively reducing the detection blind area and effectively improving the detection accuracy and detection efficiency.

[0019] 2. When the detection block detects the cable defect area, the detection block extends outward to different degrees due to different degrees of defects, and then the detection block and the second piston move different distances; when detecting low and medium degree defects, the flexible sealant in the second storage tank is discharged through the second nozzle by the contact and communication between the second through groove and the second communication pipe, and when the defect is deeper, the detection block extends to a greater extent, and at this time, the first through groove is in communication with the first communication pipe, so that the repair material in the first storage tank is sprayed to the detected defect area through the first nozzle, different protective solvents are sprayed according to different detected defects, the detection and synchronous repair of the cable are realized, the manual workload is significantly reduced, and the automatic material spraying can be realized according to the change degree through the damping cooperation between the magnetic ring one and the damping cavity, so as to avoid the redundant material spraying in the process of initial and end and deep defect detection, and avoid the waste and pollution of the material in the detection and repair process. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as a limitation to the scope. Other related drawings can also be obtained by those skilled in the art without any creative effort on the basis of the drawings.

[0021] Figure 1 is a schematic diagram of the device body provided by the embodiment of the present application.

[0022] Figure 2 is a schematic diagram of the device body provided by the embodiment of the present application.

[0023] Figure 3 is a schematic diagram of the motor drive provided by the embodiment of the present application.

[0024] Figure 4 is a schematic diagram of the device body provided by the embodiment of the present application.

[0025] Figure 5 is a schematic diagram of the inside of the runner provided by the embodiment of the present application.

[0026] Figure 6 is a schematic diagram of the cooperation between the drive shaft and the runner provided by the embodiment of the present application.

[0027] Figure 7 is a schematic diagram of the inside of the detection block provided by the embodiment of the present application.

[0028] Figure 8 is a schematic diagram of the cooperation between the detection block and the piston provided by the embodiment of the present application.

[0029] Figure 9 is a schematic diagram of the inside of the magnetic ring provided by the embodiment of the present application.

[0030] Figure 10 is an enlarged schematic diagram of A provided by the embodiment of the present application. Figure 9

[0031] Figure 11 is a schematic diagram of the inside of the second storage tank provided by the embodiment of the present application.

[0032] Legend:

[0033] ​100, device body; 101, motor; 102, gear ring; 103, knob; 104, gear ring; 105, distribution groove; 106, piston one; 107, rotating disc one; 108, drive shaft; 200, rotating wheel; 201, liquid inlet pipe; 202, communication port; 203, annular groove; 204, drive ring; 205, piston rod; 206, adjusting groove; 207, adjusting block; 208, supporting block; 209, cylindrical groove; 300, detection ring; 301, detection block; 302, sealing groove; 303, communication pipe one; 304, spray pipe one; 305, spray pipe two; 306, storage groove one; 307, storage groove two; 308, feed pipe one; 309, through groove one; 310, piston two; 311, pressure switch; 312, hydraulic groove; 313, through groove two; 314, communication pipe two; 317, feed pipe two; 318, magnetic ring one; 319, magnetic ring two; 320, damping cavity; 321, communication pipe three; 322, flow-through groove; 323, U-shaped groove. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0035] Reference Figures 1-11 The present application provides an electrical well cable skin wear detection device, comprising a device body 100, further comprising a drive mechanism, comprising a rotating wheel 200 rotatably connected to the inner side wall of the device body 100, a gear ring 102 rotatably connected inside the device body 100, a motor 101 provided inside the device body 100, a gear wheel connected to the output end of the motor 101 to drive the gear ring 102 to rotate, a sliding groove provided on the inner side wall of the rotating wheel 200, a drive shaft 108 provided on the top of the gear ring 102 to drive the rotating wheel 200 to rotate through the sliding groove of the inner side wall of the rotating wheel 200, and an adjusting assembly provided inside the rotating wheel 200.

[0036] The detection mechanism comprises a detection ring 300 rotatably connected to the inner side wall of the device body 100, the side wall of the detection ring 300 is connected with a gear ring 104, the output end of the motor 101 is connected with a gear for driving the gear ring 104 to rotate, the inner side wall of the detection ring 300 is provided with a sealing groove 302, the sealing groove 302 is sleeved with a detection block 301, the end of the detection block 301 away from the detection ring 300 is provided with a ball, a spring is connected between the detection block 301 and the sealing groove 302 for resetting, the top of the detection block 301 is provided with a hydraulic groove 312, the inside of the hydraulic groove 312 is sleeved with a piston two 310, the inner side top of the hydraulic groove 312 is provided with a pressure switch 311, the bottom of the detection ring 300 is provided with a spray pipe one 304 and a spray pipe two 305, the inside of the detection ring 300 is provided with a storage groove one 306 and a storage groove two 307, the inside of the detection block 301 is provided with a communication pipe one 303 and a communication pipe two 314 matched with the spray pipe one 304 and the spray pipe two 305 respectively, the storage groove one 306 and the storage groove two 307 are respectively communicated with a feeding pipe one 308 and a feeding pipe two 317, the feeding pipe one 308 and the feeding pipe two 317 are respectively communicated with the communication pipe one 303 and the communication pipe two 314, the inside of the piston two 310 is provided with a through groove one 309 and a through groove two 313 matched with the communication pipe one 303 and the communication pipe two 314 respectively, it should be noted that, in the detection process of the rotation of the detection ring 300, the detection block 301 moves upwards to compress the spring between the detection block 301 and the sealing groove 302, when the surface of the cable is detected to be concave and defective, the detection block 301 extends outwards under the elastic force of the spring, at this time, the pressure between the sealing groove 302 and the detection block 301 is small, the piston two 310 is attracted and moved towards the sealing groove 302 under the communication effect, in the moving process of the detection block 301 and the piston two 310, the through groove two 313 first contacts and communicates with the communication pipe two 314, at this time, the communication pipe two 314 communicates the feeding pipe two 317 with the spray pipe two 305, the flexible sealant material in the storage groove two 307 is preferably acrylate or silicone sealant, which enters the spray pipe two 305 through the feeding pipe two 317, the communication pipe two 314 and the through groove two 313, and is finally discharged from the spray pipe two 305 towards the end of the detection block 301 provided with the detection ball, that is, the detection area, to realize automatic detection of the outside of the cable, and automatic spraying when slight defects are detected, when the defect degree of the detection area is large and the defect is deep, the degree of extension of the detection block 301 increases, at this time, the pressure between the sealing groove 302 and the detection block 301 continues to decrease, so that the piston two 310 moves towards the sealing groove 302 to a larger extent, at this time, the communication pipe two 314 passes through the spray pipe two 305 and the feeding pipe two 317, and then the through groove one 309 communicates with the communication pipe one 303, at the same time, the communication pipe one 303 communicates with the feeding pipe one 308 and the spray pipe one 304, so that the repair material in the storage groove one 306, which is preferably epoxy resin insulation composite glue, is sprayed to the detection area through the spray pipe one 304, to realize spraying of different protective solvents according to different detected defects and corrosion.During the detection process, the materials in the second storage tank 307 and the first storage tank 306 are respectively sprayed to the cable through the second spray pipe 305 and the first spray pipe 304 by moving the detection block 301 and the piston 310 according to different degrees of damage.

[0037] It should be noted that the inside of the rotating wheel 200 is provided with a plurality of continuous spiral guide grooves, and the driving shaft 108 is annularly distributed along the axis of the gear ring 102 and has a plurality of groups, the driving shaft 108 and the spiral guide groove form a sliding pair, when the gear ring 102 drives the driving shaft 108 to rotate, the axial movement is converted into the rotary motion of the rotating wheel 200 through the interaction between the driving shaft 108 and the spiral guide groove.

[0038] Referring to Figures 2-5 , the adjusting assembly includes an annular groove 203 provided in the inside of the rotating wheel 200, the inside of the annular groove 203 is sleeved with a driving ring 204, the inside of the rotating wheel 200 is provided with an adjusting groove 206, the inside of the adjusting groove 206 is sleeved with an adjusting block 207, one end of the adjusting block 207 away from the axis of the rotating wheel 200 is provided with a shaft group extending to the outside of the rotating wheel 200, one end of the shaft group away from the adjusting block 207 is connected with a supporting block 208, the bottom of the adjusting groove 206 is connected with a cylindrical groove 209, the driving ring 204 is connected with a group of piston rods 205 movably sleeved with the cylindrical groove 209, the outer side wall of the device body 100 is provided with a distribution groove 105, the inside of the distribution groove 105 is sleeved with a piston 106, the top of the piston 106 is connected with a rotating disc 107, the top of the rotating disc 107 is rotatably connected with a knob 103, the knob 103 is threadedly connected with the outer side wall of the device body 100, the bottom of the distribution groove 105 is provided with a group of liquid inlet pipes 201 extending to the end face of the rotating wheel 200, the device body 100 is provided with a group of grooves rotatably connected with the end face of the rotating wheel 200, the liquid inlet pipe 201 contacts with the side wall of the rotating wheel 200 through the grooves, the rotating wheel 200 is provided with a group of communication openings 202 to communicate the grooves with the annular groove 203, the annular groove 203 and the distribution groove 105 are filled with hydraulic oil, and the piston rod 205 and the adjusting block 207 are also filled with hydraulic oil.

[0039] Further, the rotating wheel 200 is uniformly provided with a plurality of groups along the axis of the device body 100, and the number of the distribution grooves 105 corresponds to the number of the rotating wheels 200.

[0040] It should be noted that the device body 100 is composed of two groups of symmetrical semi-annular structures, and when the two groups of device bodies 100 are combined together, a complete annular structure can be formed, the gear ring 102, the gear ring 104 and the detection ring 300 are limitingly rotatably connected with the device body 100, and after the device body 100 is combined, the gear ring 102, the gear ring 104 and the detection ring 300 can rotate inside the annular structure formed by the combination of the two groups of device bodies 100 along the axis of the device body 100.

[0041] Referring toFigures 2-10 The damping cavity 320 is internally sleeved with a magnetic ring 318. The outer side of the communication pipe 314 is provided with a group of magnetic rings 319 which are attracted to the magnetic ring 318. The feeding pipe 317 is connected with a communication pipe 321 which extends to the inside of the magnetic ring 318. The side wall of the communication pipe 321 is provided with a flow channel 322. The inner side wall of the magnetic ring 318 is provided with a U-shaped groove 323 which cooperates with the flow channel 322. When the magnetic ring 318 is not affected by external force, the U-shaped groove 323 is not in contact with the flow channel 322. When the magnetic ring 318 moves to the direction of the damping cavity 320 and the U-shaped groove 323 is in communication with the flow channel 322, the material in the storage tank 307 passes through the feeding pipe 317 and the communication between the flow channel 322 and the U-shaped groove 323 and then passes through the communication pipe 321 and further enters the inside of the communication pipe 314.

[0042] It should be noted that the side wall of the damping cavity 320 is provided with a plurality of one-way air holes. The diameter of the air hole which unidirectionally discharges the gas inside the damping cavity 320 is smaller than the diameter of the air hole which unidirectionally sucks the external gas into the damping cavity 320. When the magnetic ring 318 is attracted by the magnetic ring 319 and the gas inside the damping cavity 320 is discharged through the one-way air hole, the magnetic ring 318 moves to the position where the U-shaped groove 323 is in communication with the flow channel 322. Since the diameter of the air hole for discharging gas is small, the moving speed of the magnetic ring 318 is slow, forming a damping mechanism. When the magnetic ring 319 stays in the corresponding area of the magnetic ring 318 for a long time, the magnetic ring 318 has sufficient time to communicate the U-shaped groove 323 with the flow channel 322 to realize the discharge through the communication pipe 314 and the nozzle 305. During the resetting process, the external air can be quickly sucked in through the large-diameter one-way air hole to realize fast resetting.

[0043] Referring to Figure 11 The inside of the storage tank 307 is provided with a group of arc springs and piston blocks which pump the solution inside the storage tank 307 into the inside of the feeding pipe 317. It should be noted that the inside of the storage tank 306 is also provided with the same structure which pumps the solution inside the storage tank 306 into the inside of the feeding pipe 308.

[0044] The working process of the electrical well cable skin wear detection device is as follows:

[0045] The cable to be detected is determined at the electrical well inlet, and then two sets of device bodies 100 are buckled outside the cable, and the two sets of device bodies 100 form a closed annular structure, and the two sets of device bodies 100 are fixedly connected through bolts, at this time, the tooth ring 102 and the detection ring 300 inside the two sets of device bodies 100 also form an annular structure through the end abutment and the limiting of the device body 100, and can rotate along the axis of the device body 100 inside the annular structure formed by the two sets of device bodies 100, further, rotate the knobs 103 on the side walls of the two sets of device bodies 100, the knobs 103 drive the rotating disc 107 and the piston 106 to move towards the inside of the distribution groove 105 through the threaded connection with the side wall of the device body 100, and the hydraulic oil in the inside of the distribution groove 105 is pumped into the annular groove 203 of each set of runner 200 through each set of liquid inlet pipe 201 and the communication port 202 respectively, so as to drive the driving ring 204 inside each set of runner 200 to move synchronously, and then the hydraulic oil medium in the cylindrical groove 209 and the adjusting groove 206 is compressed at the same time through each set of piston rod 205, the support block 208 is pushed away from the runner 200, through the annular groove 203 of each set of runner 200 corresponding to each set of distribution groove 105, and the pressure change of the adjusting groove 206 inside each set of runner 200 can be kept consistent through the driving ring 204 driving each set of piston rod 205, through multi-stage hydraulic parallel transmission, the pressure of the adjusting groove 206 inside each set of runner 200 changes synchronously, and then the moving extension distance of each set of support block 208 remains consistent, until the support block 208 is tightly attached to the surface of the cable to realize stable transmission, realizing synchronous change of the diameter of each set of runner 200, so that fine adjustment and adaptation can be realized between cables of different diameters, not only improving the stability of the contact transmission between the runner 200 and the cable, but also improving the applicability of the device, further, an external control center is arranged, and the inside of the device body 100 is connected through a retractable wire, so that the electronic equipment in the inside of the device body 100 can be controlled and feedback can be received, and then the motor 101 is started through the external control center, the two sets of gears on the output end of the motor 101 can drive the tooth ring 102 and the gear ring 104 to rotate respectively, when the tooth ring 102 rotates, the driving shaft 108 interacts with the helical guide groove formed on the inner side wall of the runner 200 to form a sliding pair, and the axial movement is converted into the rotary movement of the runner 200, so as to drive the runner 200 to rotate, thereby driving the device body 100 to travel on the surface of the cable, and realizing automatic detection of the cable.

[0046] It should be noted that, in order to ensure that the rotation degrees of the knobs 103 on the side walls of the two sets of device bodies 100 are the same, a scale can be arranged at the thread of the knob 103 or the thread can be directly marked with paint, and the diameters of the runners 200 on the two sets of device bodies 100 can be ensured to be consistent by rotating to the same degree.

[0047] In the process of the device body 100 running through the rotating wheel 200, the rotation of the gear ring 104 can drive the detection ring 300 to rotate, so that the detection ring 300 can rotate and spiral along the cable axis in the process of the device body 100 running along the cable axis. Compared with ordinary axial detection, the detection covers a more comprehensive range, effectively reduces the detection blind area, and improves the accuracy of detection. At the same time, in the detection process, the ball at the end of the detection block 301 is in close contact with the surface of the cable, and the detection block 301 compresses the space inside the sealing groove 302. Through the transmission of hydraulic oil inside the sealing groove 302, piston two 310 is pushed towards the inside of the hydraulic groove 312 and enters the initial detection position. When piston two 310 moves to the cable damage area, the detection block 301 extends outward under the spring force between the detection block 301 and the sealing groove 302. At this time, the pressure between the sealing groove 302 and the detection block 301 becomes smaller, and under the communication effect, piston two 310 is attracted and moved towards the sealing groove 302. In the process of moving the detection block 301 and piston two 310, through groove two 313 first contacts and communicates with communication pipe two 314. At this time, communication pipe two 314 communicates feed pipe two 317 with spray pipe two 305. The flexible sealant material in storage tank two 307 is preferably acrylate or silicone sealant, which enters spray pipe two 305 through feed pipe two 317, then through communication pipe two 314 and through groove two 313, and finally is discharged from spray pipe two 305 towards the end of the detection block 301 where the detection ball is located, i.e. the detection area, to realize automatic detection of the outside of the cable. When slight damage is detected, automatic spraying can be realized. When the damage degree of the detection area is large and the damage is deep, the extension degree of the detection block 301 increases. At this time, the pressure between the sealing groove 302 and the detection block 301 continues to decrease, so that the movement degree of piston two 310 towards the sealing groove 302 increases. At this time, communication pipe two 314 passes through spray pipe two 305 and feed pipe two 317, and then through groove one 309 communicates with communication pipe one 303. At the same time, communication pipe one 303 communicates with feed pipe one 308 and spray pipe one 304, so that the repair material in storage tank one 306, preferably epoxy resin insulation composite glue, is sprayed to the detection area through spray pipe one 304, realizing spraying different protective solvents according to different detected damage and corrosion.

[0048] It should be noted that when a deeper degree of defect is detected, the communication pipe two 314 is first close to the feeding pipe two 317 during the movement of the detection block 301 and the piston two 310, and as the defect degree of the detected defect area deepens, the detection block 301 and the piston two 310 continue to move until the communication pipe one 303 is close to the feeding pipe one 308, and in this process, the communication pipe two 314 is first close to the feeding pipe two 317, at this time the magnetic ring one 318 is attracted by the magnetic ring two 319 to exhaust the gas in the damping cavity 320 through the one-way air hole to make the magnetic ring one 318 move to the U-shaped groove 323 and the flow-through groove 322 communicate, because the diameter of the exhaust one-way air hole is small, the moving speed of the magnetic ring one 318 is slow, forming a damping mechanism, so that the magnetic ring two 319 stays in the position corresponding to the magnetic ring one 318 for a longer time, and the magnetic ring one 318 has sufficient time to communicate the U-shaped groove 323 and the flow-through groove 322 to realize the discharge through the communication pipe two 314 and the nozzle two 305, so that only when the defect degree of the area detected by the detection block 301 is small, the change degree is small, the moving range of the detection block 301 and the piston two 310 is small, the position of the communication pipe two 314 can be corresponding to the position of the feeding pipe two 317 and the magnetic ring one 318, so that the magnetic ring two 319 has sufficient time to attract the magnetic ring one 318 to extrude and exhaust the air in the damping cavity 320, and then the magnetic ring one 318 moves to the feeding pipe two 317 and the communication pipe two 314, and when the defect degree of the area detected by the detection block 301 is deep, the detection block 301 will continue to move after the magnetic ring two 319 passes through the corresponding area of the magnetic ring one 318, the magnetic force becomes smaller, so that the magnetic ring one 318 has not completely extruded and exhausted the gas in the damping cavity 320 to move to the flow-through groove 322 before the magnetic force attraction is reduced, so that the spring force between the magnetic ring one 318 and the detection ring 300 is reset, so that during the detection process, the feeding pipe two 317 will not be communicated with the communication pipe two 314 through the damping effect of the magnetic ring one 318 and the damping cavity 320 during the movement of the detection block 301 and the piston two 310 when a deeper defect is detected, so that different types of repair solvents are sprayed according to different defect depths, it should be noted that the moving speed of the detection block 301 and the piston two 310 changes according to the slope of the cable defect area, if the low slope defect area is large and flat, the degree of mutual interference of the materials coated on the defect area will also be small, therefore the detection block 301 and the piston two 310 can switch between the discharge of the nozzle one 304 and the nozzle two 305, and the flexible sealant is sprayed in the low defect area to seal and protect the flexibility, and the repair sealing material is sprayed for sealing and repair protection when the defect area becomes large, it should be noted that the above damping structure is also provided between the communication pipe one 303 and the feeding pipe one 308, so that when the communication pipe one 303 quickly passes through the feeding pipe one 308 during the detection and end detection of the detection block 301 and the piston two 310,The damper change can not directly discharge material, thereby reducing pollution and waste.

[0049] Need to explain, if the degree of damage is deep, the detection block 301 and the piston two 310 moving distance increases, until the piston two 310 and pressure switch 311 abutting trigger pressure switch 311, it is explained that the damage here is larger, need to be handled manually, at this time the electric wire connected through the device body 100 side wall will electric signal to the control center, so that the staff can do statistics on high degree of damage situation, thereby subsequent repair processing and construction.

[0050] The above only for the preferred embodiments of the present application and is not intended to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A device for detecting cable sheath wear in electrical wells, comprising a device body (100), characterized in that, Also includes: The driving mechanism includes a rotating wheel (200) rotatably connected to the inner wall of the device body (100), a gear ring (102) rotatably connected inside the device body (100), a motor (101) disposed inside the device body (100), a sliding groove disposed on the inner wall of the rotating wheel (200), a drive shaft (108) disposed on the top of the gear ring (102) for driving the rotating wheel (200) to rotate through the sliding groove on the inner wall of the rotating wheel (200), and an adjustment component disposed inside the rotating wheel (200). The detection mechanism includes a detection ring (300) rotatably connected to the inner wall of the device body (100). A gear ring (104) is connected to the side wall of the detection ring (300). A gear that drives the gear ring (102) and the gear ring (104) to rotate is connected to the output end of the motor (101). A sealing groove (302) is provided on the inner wall of the detection ring (300). A detection block (301) is sleeved in the sealing groove (302). A ball bearing is provided at the end of the detection block (301) away from the detection ring (300). A hydraulic groove (312) is provided on the top of the detection block (301). A piston (310) is sleeved inside the hydraulic groove (312). A pressure switch (311) is provided on the top inner side of the hydraulic groove (312). A pressure switch (311) is provided on the bottom of the detection ring (300). The device has a nozzle 1 (304) and a nozzle 2 (305). The detection ring (300) has a storage tank 1 (306) and a storage tank 2 (307) inside. The detection block (301) has a connecting pipe 1 (303) and a connecting pipe 2 (314) that cooperate with the nozzle 1 (304) and the nozzle 2 (305) respectively. The storage tank 1 (306) and the storage tank 2 (307) are respectively connected to the feed pipe 1 (308) and the feed pipe 2 (317). The feed pipe 1 (308) and the feed pipe 2 (317) are respectively connected to the connecting pipe 1 (303) and the connecting pipe 2 (314). The piston 2 (310) has a through groove 1 (309) and a through groove 2 (313) that cooperate with the connecting pipe 1 (303) and the connecting pipe 2 (314) respectively. A damping cavity (320) is provided at the connection between the feed pipe 2 (317) and the connecting pipe 2 (314). A magnetic ring 1 (318) is sleeved inside the damping cavity (320). A set of magnetic rings 2 (319) that attract magnetic ring 1 (318) is provided on the outside of the connecting pipe 2 (314). The feed pipe 2 (317) is connected to a connecting pipe 3 (321) that extends into the magnetic ring 1 (318). A flow groove (322) is provided on the side wall of the connecting pipe 3 (321). The inner wall of (318) is provided with a U-shaped groove (323) that cooperates with the flow channel (322). When not affected by external force, the U-shaped groove (323) and the flow channel (322) do not contact each other. When the magnetic ring (318) moves to the point where the U-shaped groove (323) and the flow channel (322) are connected, the material inside the storage tank (307) enters the interior of the connecting pipe (314) through the feed pipe (317) and the connection between the flow channel (322) and the U-shaped groove (323) via the connecting pipe (321).

2. The device for detecting cable sheath wear in an electrical well according to claim 1, characterized in that, The inside of the rotating wheel (200) is provided with multiple sets of continuous spiral guide grooves. The drive shaft (108) is distributed in multiple sets in a ring along the axis of the gear ring (102). The drive shaft (108) and the spiral guide groove form a sliding pair. When the gear ring (102) drives the drive shaft (108) to rotate, the axial motion is converted into the rotational motion of the rotating wheel (200) through the interaction between the drive shaft (108) and the spiral guide groove.

3. The device for detecting cable sheath wear in an electrical well according to claim 1, characterized in that, The adjusting assembly includes an annular groove (203) formed inside the rotating wheel (200), a drive ring (204) sleeved inside the annular groove (203), an adjusting groove (206) formed inside the rotating wheel (200), an adjusting block (207) sleeved inside the adjusting groove (206), a shaft assembly extending to the outside of the rotating wheel (200) is provided at one end of the adjusting block (207) away from the axis of the rotating wheel (200), a support block (208) is connected at one end of the shaft assembly away from the adjusting block (207), a cylindrical groove (209) is connected to the bottom of the adjusting groove (206), a set of piston rods (205) movably sleeved with the cylindrical groove (209) is connected to the drive ring (204), and a distribution groove (105) is formed on the outer wall of the device body (100), the inner side of the distribution groove (105) is sleeved with a piston rod (204). There is a piston (106), and a turntable (107) is connected to the top of the piston (106). A knob (103) is rotatably connected to the top of the turntable (107). The knob (103) is threaded to the outer wall of the device body (100). A set of inlet pipes (201) extending to the end face of the wheel (200) are provided at the bottom of the distribution groove (105). A set of grooves are provided in the device body (100) and rotatably connected to the end face of the wheel (200). The inlet pipes (201) contact the side wall of the wheel (200) through the grooves. A set of connecting ports (202) are provided in the wheel (200) to connect the grooves with the annular groove (203). Hydraulic oil is filled between the annular groove (203) and the distribution groove (105). Hydraulic oil is also filled between the piston rod (205) and the adjusting block (207).

4. The device for detecting cable sheath wear in an electrical well according to claim 3, characterized in that, Multiple sets of the rotating wheels (200) are evenly arranged along the axis of the device body (100), and the number of the distribution grooves (105) corresponds to the number of the rotating wheels (200).

5. The device for detecting cable sheath wear in an electrical well according to claim 1, characterized in that, The device body (100) consists of two sets of symmetrical semi-circular structures. The toothed ring (102), toothed ring (104) and detection ring (300) are all connected to the device body (100) for limited rotation.

6. The device for detecting cable sheath wear in an electrical well according to claim 1, characterized in that, The sidewall of the damping cavity (320) has multiple sets of one-way air holes, and the diameter of the air hole that discharges the gas inside the damping cavity (320) outward in one direction is smaller than the diameter of the air hole that draws the external gas into the damping cavity (320) in one direction.

7. The device for detecting cable sheath wear in an electrical well according to claim 1, characterized in that, The storage tank 2 (307) is equipped with a set of arc springs and piston blocks to pump the solution inside the storage tank 2 (307) to the feed pipe 2 (317).

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