Device and method for monitoring internal defects of concrete in high-water-level construction of power transmission structure

Abstract

The invention discloses a power transmission structure high-water-level construction concrete internal defect monitoring device and method, relates to the field of power transmission structure monitoring, and solves the problem that an existing power transmission structure concrete internal defect monitoring device is difficult to comprehensively and dynamically monitor the concrete defect condition around a power transmission line. Comprising a monitoring mechanism, a driving mechanism, a clamping mechanism and a device box, the monitoring mechanism comprises an arc-shaped plate and a voiceprint sensor, the driving mechanism comprises rollers, the voiceprint sensor is used for identifying and monitoring compactness and fault characteristics of a surrounding power transmission structure, and when the driving mechanism runs, the rollers are pushed by the clamping mechanism to be automatically attached to the outer wall of a cable; the device box is arranged in the device box and keeps abutting against the set strength, so that the rollers can move on cables of different sizes in the monitoring process, the rollers roll on the outer walls of the cables to drive the device box to move, meanwhile, the arc-shaped plate is linked to rotate around the outer wall of the device box, and the coverage rate and accuracy of the monitoring process are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission structure monitoring, and in particular to a device and method for monitoring internal defects of concrete during high water level construction of a power transmission structure. Background Art

[0002] The transmission of electric energy plays a vital role in the power system. Since power plants and power load centers are often located in different geographical areas, the transmission process becomes the key link to transport electric energy from power plants to load centers far away from them, thus breaking the geographical restrictions on the development and utilization of electric energy. With the continuous adjustment of the global energy structure and the rapid development of the power industry, the quality and safety requirements for power infrastructure construction are becoming more and more stringent.

[0003] In the construction of power infrastructure, bored piles and underground continuous walls are two common underwater power transmission structures. These structures are usually made of concrete and are used to support and fix power transmission lines and related facilities to ensure the stability and safety of power transmission. Bored piles are columnar structures formed by pouring concrete into the holes after drilling, while underground continuous walls are composed of a series of interconnected concrete walls. Both can provide strong support in underwater environments.

[0004] However, during the construction phase of underwater power transmission structures such as bored piles and underground continuous walls, quality inspection faces many difficulties and challenges. Especially in high water levels, visibility in the water is extremely poor due to factors such as suspended matter, silt, and light refraction. This poor visibility makes it difficult for traditional non-contact monitoring technology to obtain real-time and accurate information on defects inside the concrete. At the same time, traditional contact monitoring technology is more complex when operating underwater, and its monitoring accuracy is easily affected by interference from environmental factors such as water flow and pressure.

[0005] Therefore, it is necessary to seek more advanced and reliable monitoring technologies and methods for the construction quality inspection of underwater power transmission structures such as bored piles and underground continuous walls in high water level environments. Summary of the invention

[0006] The object of the present invention is to provide a device and method for monitoring internal defects of concrete during high-water construction of power transmission structures, which is convenient for improving the accuracy and comprehensiveness of monitoring internal defects of concrete around power transmission lines, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for monitoring internal defects of concrete during high-water-level construction of a power transmission structure, comprising a monitoring mechanism, a driving mechanism, a clamping mechanism and two groups of device boxes, both of which are semicircular, and a plurality of device grooves are evenly arranged on the device boxes, the monitoring mechanism comprises an arc plate slidably connected to the outer wall of the device box, and a plurality of sound print sensors are evenly fixedly connected to the outer wall of the arc plate, which are used to identify and monitor the compactness and fault characteristics of the surrounding power transmission structure through the sound print sensors, the driving mechanism comprises a plurality of rollers installed in the device grooves, which are used to roll on the outer wall of the cable through the rollers to drive the device box to move, and at the same time, the arc plate is linked to rotate around the outer wall of the device box to improve the coverage and accuracy of the monitoring process, the clamping mechanism is installed in the device groove, which is used to push the roller to automatically fit the outer wall of the cable when the driving mechanism is running, and keep the contact to a set strength, so that the roller can move on cables of different sizes during the monitoring process, which is convenient for improving the accuracy and comprehensiveness of monitoring internal defects of concrete around the power transmission line.

[0008] Preferably, the driving mechanism also includes a roller coaxially fixedly connected to the roller, a mounting frame is provided in the device groove, the roller is rotatably connected to the mounting frame, the clamping mechanism is used to control the position of the mounting frame, a fixing frame is fixedly connected in the device groove, a driving wheel is rotatably connected to the fixing frame, and a rotating member is provided in the device groove for driving the roller to rotate through the driving wheel, so that the roller can roll on the outer wall of the cable, drive the device box to move along the length direction of the outer wall of the cable, and at the same time link the arc plate to rotate around the outer wall of the device box, thereby improving the coverage and accuracy of the monitoring process.

[0009] Preferably, the rotating member includes a guide frame fixedly installed in the device groove, a sliding frame is slidably connected in the guide frame along the horizontal direction, a driven wheel is rotatably connected to the sliding frame, the outer wall of the driving wheel is transmission-connected to the driven wheel and the outer wall of the roller through a transmission belt, a first spring is fixedly connected between the side of the sliding frame and the guide frame, and a control member for driving the driving wheel to rotate is provided in the device groove, so as to facilitate the driving wheel to rotate the roller.

[0010] Preferably, the control member includes a worm wheel coaxially fixedly mounted on one end of the driving wheel, a first gear is rotatably connected in the device groove, a worm meshing with the worm wheel is coaxially fixedly connected to the side of the first gear, a plurality of groups of tooth grooves that can mesh with the first gear are evenly arranged on the inner wall of the arc plate, and a driving member for driving the arc plate to rotate is provided in any group of the device boxes, so as to drive the driving wheel to rotate.

[0011] Preferably, the clamping mechanism includes a fixing cylinder fixedly mounted on the fixing frame, a connecting rod slidably connected in the fixing cylinder, a sliding groove is provided on the mounting frame, a sliding block is slidably connected in the sliding groove, one end of the connecting rod is fixedly connected to the sliding block, a second spring is connected between the sliding block and the mounting frame, and a lifting member for controlling the lifting and lowering state of the connecting rod is provided in the device groove, so that when the driving mechanism is running, the roller is pushed to automatically fit the outer wall of the cable and maintain the contact to a set strength, so that the roller can move on cables of different sizes during the monitoring process.

[0012] Preferably, the lifting member includes an air-filled box fixedly installed in the device groove, an air-filled plate is slidably connected in the air-filled box, a rotating disk is coaxially fixedly connected to the side of the worm gear, a driving rod rotatably connected to the air-filled plate is rotatably connected to the side of the rotating disk at a non-center position, the air-filled box is connected to a connecting pipe connected to the side of the bottom end of the fixed cylinder, and an adjusting member for controlling the internal air pressure state of the fixed cylinder is provided in the fixed cylinder to facilitate control of the lifting and lowering state of the connecting rod.

[0013] Preferably, the adjusting member includes a tension spring fixedly mounted on one end of the connecting rod, one end of the tension spring is fixedly connected to the fixed cylinder, an exhaust pipe connected to the fixed cylinder is provided on the connecting rod and the sliding block, a sealing block for sealing one end of the exhaust pipe is fixedly connected in the sliding groove, a one-way exhaust valve for controlling the one-way output of gas from the inflation box to the fixed cylinder is provided in the connecting pipe, and a one-way intake valve for controlling the one-way suction of gas from the outside into the inflation box is provided on the inflation box, so as to control the internal air pressure state of the fixed cylinder.

[0014] Preferably, the driving member comprises a driving motor fixedly installed in any group of the device boxes, and the output end of the driving motor is coaxially fixedly connected with a second gear meshing with the tooth groove to facilitate driving the arc plate to rotate.

[0015] Preferably, one side of the two groups of device boxes are respectively fixedly connected with hinges that are hinged to each other, and the side surfaces of the device boxes are fixedly connected with fixing buckles for fixing, so as to facilitate docking, fixing and opening of the device boxes on both sides.

[0016] A method for monitoring internal defects of concrete in high water level construction of a power transmission structure, comprising the following steps:

[0017] S1. Close the two sets of device boxes into a ring shape and frame them on the outer wall of the cable;

[0018] S2. Control the operation of the drive mechanism, push the roller to automatically fit and clamp the outer wall of the cable through the clamping mechanism, and control the roller to rotate so that the device box can move along the cable route;

[0019] S3. While the roller is rotating, the arc plate is driven to rotate along the outer wall of the device box, and the density and fault characteristics of the power transmission structure are identified and monitored through the surrounding sound print sensors;

[0020] S4. The monitored data is transmitted back to the control center for analysis of internal defects of concrete during high water level construction of the transmission structure.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention provides a device and method for monitoring internal defects of concrete during high-water-level construction of a power transmission structure, which solve the problems encountered when using the existing device and method for monitoring internal defects of concrete during high-water-level construction of a power transmission structure. The compactness and fault characteristics of the surrounding power transmission structure are identified and monitored by a voiceprint sensor. When the driving mechanism is running, the roller is pushed by the clamping mechanism to automatically fit the outer wall of the cable and maintain the contact to a set strength, so that the roller can move on cables of different sizes during the monitoring process. The roller rolls on the outer wall of the cable to drive the device box to move, and the arc plate is linked to rotate around the outer wall of the device box, thereby improving the coverage and accuracy of the monitoring process, thereby realizing the function of dynamic and comprehensive monitoring of internal defects of concrete around the power transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the use state of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the partial structure of the monitoring mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the local structure of the driving mechanism of the present invention;

[0027] Figure 5 for Figure 4 A magnified image of area A;

[0028] Figure 6 It is a schematic diagram of the partial structure of the clamping mechanism of the present invention;

[0029] Figure 7 for Figure 6 Enlarged view of area B;

[0030] Figure 8 It is a partial structural cross-sectional view of the clamping mechanism of the present invention;

[0031] Fig. 9 for Figure 8 Enlarged view of area C.

[0032] In the figure: 1-device box; 2-device slot; 3-monitoring mechanism; 4-arc plate; 5-soundprint sensor; 6-driving mechanism; 7-roller; 8-clamping mechanism; 9-roller; 10-mounting frame; 11-fixed frame; 12-driving wheel; 13-rotating member; 14-guide frame; 15-sliding frame; 16-driven wheel; 17-transmission belt; 18-first spring; 19-control member; 20-worm wheel; 21-first gear; 22-worm; 23-tooth groove; 24-driving mechanism moving part; 25-fixed cylinder; 26-connecting rod; 27-sliding groove; 28-sliding block; 29-second spring; 30-lifting part; 31-inflating box; 32-inflating plate; 33-rotating disk; 34-driving rod; 35-connecting pipe; 36-adjusting part; 37-tension spring; 38-exhaust pipe; 39-sealing block; 40-one-way exhaust valve; 41-one-way intake valve; 42-driving motor; 43-second gear; 44-hinge; 45-fixing buckle; 46-cable. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 9 The present invention provides a technical solution: a device for monitoring internal defects of concrete during high-water-level construction of a power transmission structure, comprising a monitoring mechanism 3, a driving mechanism 6, a clamping mechanism 8 and two sets of device boxes 1, both of which are semicircular arc-shaped, so as to be easily combined into a complete circular ring to wrap the cable 46. One side of the two sets of device boxes 1 is respectively fixedly connected with hinges 44 that are hinged to each other, and the side of the device box 1 is fixedly connected with a fixing buckle 45 for fixing. A plurality of sets of device grooves 2 are evenly provided on the device box 1, and these device grooves 2 provide space for the installation of subsequent components. The monitoring mechanism 3 comprises an arc-shaped plate 4 that is slidably connected to the outer wall of the device box 1, and a plurality of sets of sound print sensors 5 are evenly fixedly connected to the outer wall of the arc-shaped plate 4, which are used to identify and monitor the compactness and fault characteristics of the surrounding power transmission structure through the sound print sensors 5.

[0035] The driving mechanism 6 includes a plurality of rollers 7 installed in the device slot 2, which are used to roll on the outer wall of the cable 46 through the rollers 7 to drive the device box 1 to move, and at the same time, the arc plate 4 is linked to rotate around the outer wall of the device box 1 to improve the coverage and accuracy of the monitoring process. The clamping mechanism 8 is installed in the device slot 2, and is used to push the rollers 7 to automatically fit the outer wall of the cable 46 when the driving mechanism 6 is running, and maintain the contact to a set strength, so that the rollers 7 can move on cables 46 of different sizes during the monitoring process.

[0036] Furthermore, the driving mechanism 6 also includes a roller 9 coaxially fixedly connected to the roller 7, a mounting frame 10 is provided in the device groove 2, the roller 9 is rotatably connected to the mounting frame 10, the clamping mechanism 8 is used to control the position of the mounting frame 10, a fixing frame 11 is fixedly connected in the device groove 2, a driving wheel 12 is rotatably connected to the fixing frame 11, and a rotating member 13 is provided in the device groove 2 for driving the roller 9 to rotate through the driving wheel 12.

[0037] The rotating member 13 includes a guide frame 14 fixedly installed in the device groove 2, a sliding frame 15 is slidably connected in the guide frame 14 along the horizontal direction, a driven wheel 16 is rotatably connected to the sliding frame 15, the outer wall of the driving wheel 12 is transmission-connected to a transmission belt 17 that is transmission-connected to the driven wheel 16 and the outer wall of the roller 9, a first spring 18 that is fixedly connected to the guide frame 14 is fixedly connected to the side of the sliding frame 15, and a control member 19 for driving the driving wheel 12 to rotate is provided in the device groove 2.

[0038] The control member 19 includes a worm wheel 20 coaxially fixedly installed at one end of the driving wheel 12, a first gear 21 is rotatably connected in the device groove 2, a worm 22 meshing with the worm wheel 20 is coaxially fixedly connected to the side of the first gear 21, and a plurality of groups of tooth grooves 23 that can mesh with the first gear 21 are evenly provided on the inner wall of the arc plate 4. Any group of device boxes 1 is provided with a driving member 24 for driving the arc plate 4 to rotate, and the driving member 24 includes a driving motor 42 fixedly installed in any group of device boxes 1. The model of the driving motor 42 is preferably YYHS-40, and the output end of the driving motor 42 is coaxially fixedly connected with a second gear 43 meshing with the tooth groove 23.

[0039] The clamping mechanism 8 includes a fixed cylinder 25 fixedly mounted on the fixed frame 11, a connecting rod 26 is slidably connected in the fixed cylinder 25, a sliding groove 27 is opened on the mounting frame 10, a sliding block 28 is slidably connected in the sliding groove 27, one end of the connecting rod 26 is fixedly connected to the sliding block 28, a second spring 29 fixedly connected to the mounting frame 10 is fixedly connected to the sliding block 28, and a lifting member 30 for controlling the lifting and lowering state of the connecting rod 26 is provided in the device groove 2.

[0040] The lifting member 30 includes an air-filled box 31 fixedly installed in the device groove 2, an air-filled plate 32 is slidably connected in the air-filled box 31, a rotating disk 33 is coaxially fixedly connected to the side of the worm gear 20, a driving rod 34 rotatably connected to the air-filled plate 32 is rotatably connected to the side of the rotating disk 33 at a non-center position, a connecting pipe 35 is connected to the air-filled box 31 and is connected to the side of the bottom end of the fixed cylinder 25, and an adjusting member 36 for controlling the internal air pressure state of the fixed cylinder 25 is provided in the fixed cylinder 25.

[0041] The adjusting member 36 includes a tension spring 37 fixedly mounted on one end of the connecting rod 26, one end of the tension spring 37 is fixedly connected to the fixed cylinder 25, an exhaust pipe 38 connected to the fixed cylinder 25 is provided on the connecting rod 26 and the sliding block 28, a sealing block 39 for sealing one end of the exhaust pipe 38 is fixedly connected in the sliding groove 27, a one-way exhaust valve 40 for controlling the one-way output of gas from the inflation box 31 to the fixed cylinder 25 is provided in the connecting pipe 35, and a one-way intake valve 41 for controlling the one-way suction of gas from the outside into the inflation box 31 is provided on the inflation box 31.

[0042] A method for monitoring internal defects of concrete in high water level construction of a power transmission structure, comprising the following steps:

[0043] S1. The two sets of device boxes 1 are closed in a circular shape, framed on the outer wall of the cable 46;

[0044] S2. Control the operation of the drive mechanism 6, push the roller 7 through the clamping mechanism 8 to automatically fit the outer wall of the clamping cable 46, and control the roller 7 to rotate so that the device box 1 can move along the cable 46 route;

[0045] S3. While the roller 7 rotates, the arc-shaped plate 4 is driven to rotate along the outer wall of the device box 1, and the density and fault characteristics of the power transmission structure are identified and monitored by the surrounding sound print sensor 5;

[0046] S4. The monitored data is transmitted back to the control center for analysis of internal defects of concrete during high water level construction of the transmission structure.

[0047] In this embodiment, the fixing buckle 45 between the two groups of device boxes 1 is opened, the device box 1 is rotated around the hinge 44, the device box 1 is buckled on the outer wall of the cable 46, the device boxes 1 on both sides are closed to form a circular ring, and the fixing buckle 45 is fixedly connected to complete the installation, and the drive motor 42 is started to drive the second gear 43 to rotate, so that the tooth groove 23 and the arc plate 4 are rotated. Semicircular guide rails for rotating the arc plate 4 are provided on the two device boxes 1, and the two device boxes 1 can make the two semicircular guide rails form an annular guide rail after being spliced ​​and assembled, so as to ensure that the upper arc plate 4 can rotate to the lower semicircular guide rail under the action of the drive motor 42, and the lower arc plate 4 can rotate into the upper semicircular guide rail under the action of the drive motor 42 to realize circular rotation, and the arc plate 4 drives the surrounding voiceprint sensor 5 to rotate around the outer wall of the two groups of device boxes 1, thereby improving the comprehensiveness of the surrounding environment monitoring.

[0048] It is worth noting that when the arc plate 4 rotates, the first gear 21 is driven to rotate through the tooth groove 23, so that the worm 22 drives the worm wheel 20 to rotate, and the worm wheel 20 drives the rotating disk 33 to rotate, and the linkage driving rod 34 pushes and pulls the inflatable plate 32 back and forth. The inflatable plate 32 performs piston motion in the inflatable box 31, and the external gas is sucked into the inflatable box 31 through the one-way air inlet valve 41, and then output to the fixed cylinder 25 through the one-way exhaust valve 40 and the connecting pipe 35, so that the air pressure in the fixed cylinder 25 and the exhaust pipe 38 increases, pushing the connecting rod 26 to move upward, and the tension spring 37 is stretched. The connecting rod 26 pushes the sliding block 28 to move together with the mounting frame 10, so that the roller 7 gradually moves toward the outer wall of the cable 46 for clamping, and after the clamping collision, the position of the roller 7 no longer changes. At this time, the air pressure in the fixed cylinder 25 continues to increase, pushing the sliding block 28 to compress the second spring 29, and the sealing block 39 gradually slides out of the exhaust pipe 38. Thereafter, the gas in the fixed cylinder 25 can be discharged through the exhaust pipe 38, and the internal air pressure no longer continues to increase, thereby avoiding the situation where the roller 7 is continuously pushed to squeeze the cable 46, thereby realizing the function of automatically fitting to the outer walls of cables 46 of different sizes for fitting and moving.

[0049] During the movement of the roller 7, the transmission belt 17 is tightened through the roller 9. Due to the push of the first spring 18 on the sliding frame 15, the side of the driven wheel 16 always tightens the transmission belt 17 to ensure that during the process of adjusting the position of the roller 7, the transmission belt 17 can always transmit the rotation state of the driving wheel 12 to the roller 9, driving the roller 7 to rotate, so that the roller 7 can roll along the outer wall of the cable 46, driving the device box 1 to move, and realizing the function of synchronously driving the voiceprint sensor 5 to rotate and monitor during the movement of the device box 1, so that the monitoring data is more comprehensive and accurate.

[0050] It should be noted that the direction of rotation of the roller 7 can be adjusted by controlling the driving motor 42 to drive the second gear 43, so that the device box 1 can move back and forth on the outer wall of the cable 46 to the desired position. After the monitoring is completed, the fixing buckle 45 is opened, and the driving motor 42 stops rotating, the inflation box 31 stops the inflation operation, and the tension spring 37 pulls the connecting rod 26 to move in the opposite direction until the sealing block 39 is inserted into the exhaust pipe 38 again for sealing.

[0051] Among them, the voiceprint sensor 5 can continuously arrange measuring points along the monitored object through distributed optical fiber sensing technology, and at the same time can realize the comprehensive, long-term and real-time automatic monitoring of the construction quality of underwater concrete structures. Based on the DAS voiceprint sensing principle, the density and fault characteristics of the transmission structure are identified. For the transmission structure in a high water level environment, water seepage risks are prone to occur during its construction and maintenance process. A sound source excitation device is developed for the global water permeability of concrete. The feature extraction and anomaly identification are carried out through the soundprint signal generated by the excitation, so as to realize the identification and positioning of water seepage risks.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring internal defects of concrete during high water level construction of power transmission structures, characterized in that: include: Two groups of device boxes (1), both groups of device boxes (1) are semicircular, and multiple groups of device slots (2) are evenly arranged on the device boxes (1); Also includes: A monitoring mechanism (3), the monitoring mechanism (3) comprising an arc-shaped plate (4) slidably connected to the outer wall of the device box (1), the outer wall of the arc-shaped plate (4) being evenly and fixedly connected with a plurality of groups of sound print sensors (5), for identifying and monitoring the compactness and fault characteristics of the surrounding power transmission structure through the sound print sensors (5); A driving mechanism (6), the driving mechanism (6) comprising a plurality of rollers (7) installed in the device slot (2), for rolling the rollers (7) on the outer wall of the cable (46), driving the device box (1) to move along the length direction of the outer wall of the cable (46), and simultaneously linking the arc plate (4) to rotate around the outer wall of the device box (1), thereby improving the coverage and accuracy of the monitoring process; A clamping mechanism (8) is installed in the device slot (2) and is used to push the roller (7) to automatically fit the outer wall of the cable (46) and maintain the contact to a set strength when the driving mechanism (6) is running, so that the roller (7) can move on cables (46) of different sizes during the monitoring process.

2. The device for monitoring internal defects of concrete during high water level construction of a power transmission structure according to claim 1 is characterized by: The driving mechanism (6) further comprises a roller (9) coaxially fixedly connected to the roller (7); a mounting frame (10) is provided in the device slot (2); the roller (9) is rotatably connected to the mounting frame (10); the clamping mechanism (8) is used to control the position of the mounting frame (10); a fixing frame (11) is fixedly connected in the device slot (2); a driving wheel (12) is rotatably connected to the fixing frame (11); a rotating member (13) is provided in the device slot (2) for driving the roller (9) to rotate via the driving wheel (12).

3. The device for monitoring internal defects of concrete during high water level construction of a power transmission structure according to claim 2 is characterized by: The rotating member (13) comprises a guide frame (14) fixedly mounted in the device groove (2); a sliding frame (15) is slidably connected in the guide frame (14) in a horizontal direction; a driven wheel (16) is rotatably connected to the sliding frame (15); the outer wall of the driving wheel (12) is transmission-connected to the driven wheel (16) and the outer wall of the roller (9) through a transmission belt (17); a first spring (18) is fixedly connected between the side surface of the sliding frame (15) and the guide frame (14); and a control member (19) for driving the driving wheel (12) to rotate is provided in the device groove (2).

4. The device for monitoring internal defects of concrete during high water level construction of a power transmission structure according to claim 3 is characterized by: The control member (19) comprises a worm wheel (20) coaxially fixedly mounted on one end of the driving wheel (12); a first gear (21) is rotatably connected in the device slot (2); a worm (22) meshing with the worm wheel (20) is coaxially fixedly connected to the side of the first gear (21); a plurality of groups of tooth grooves (23) meshing with the first gear (21) are evenly arranged on the inner wall of the arc plate (4); and a driving member (24) for driving the arc plate (4) to rotate is provided in any group of the device boxes (1).

5. The device for monitoring internal defects of concrete during high water level construction of a power transmission structure according to claim 4, characterized in that: The clamping mechanism (8) comprises a fixing cylinder (25) fixedly mounted on the fixing frame (11), a connecting rod (26) being slidably connected in the fixing cylinder (25), a sliding groove (27) being provided on the mounting frame (10), a sliding block (28) being slidably connected in the sliding groove (27), one end of the connecting rod (26) being fixedly connected to the sliding block (28), a second spring (29) being connected between the sliding block (28) and the mounting frame (10), and a lifting member (30) for controlling the lifting state of the connecting rod (26) being provided in the device groove (2).

6. The device for monitoring internal defects of concrete during high water level construction of a power transmission structure according to claim 5, characterized in that: The lifting member (30) comprises an air-filling box (31) fixedly mounted in the device groove (2), an air-filling plate (32) being slidably connected in the air-filling box (31), a rotating disk (33) being coaxially fixedly connected to the side of the worm gear (20), a driving rod (34) being rotatably connected to the air-filling plate (32) at a non-center position on the side of the rotating disk (33), a connecting pipe (35) being connected to the side of the bottom end of the fixed cylinder (25) being connected to the air-filling box (31), and an adjusting member (36) for controlling the internal air pressure state of the fixed cylinder (25) being provided in the fixed cylinder (25).

7. The device for monitoring internal defects of concrete during high water level construction of a power transmission structure according to claim 6, characterized in that: The adjusting member (36) comprises a tension spring (37) fixedly mounted on one end of the connecting rod (26), one end of the tension spring (37) being fixedly connected to the fixed cylinder (25), an exhaust pipe (38) communicating with the fixed cylinder (25) being provided on the connecting rod (26) and the sliding block (28), a sealing block (39) for sealing one end of the exhaust pipe (38) being fixedly connected in the sliding groove (27), a one-way exhaust valve (40) for controlling the one-way output of gas from the inflation box (31) to the fixed cylinder (25) being provided in the connecting pipe (35), and a one-way intake valve (41) for controlling the one-way suction of gas from the outside into the inflation box (31) being provided on the inflation box (31).

8. The device for monitoring internal defects of concrete during high water level construction of a power transmission structure according to claim 4, characterized in that: The driving member (24) comprises a driving motor (42) fixedly installed in any group of the device boxes (1), and the output end of the driving motor (42) is coaxially fixedly connected with a second gear (43) meshing with the tooth groove (23).

9. The device for monitoring internal defects of concrete during high water level construction of a power transmission structure according to claim 1, characterized in that: One side of the two groups of device boxes (1) is respectively fixedly connected with hinges (44) that are hinged to each other, and the side of the device box (1) is fixedly connected with a fixing buckle (45) for fixing.

10. A method for monitoring internal defects of concrete during high water level construction of a power transmission structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The two sets of device boxes (1) are closed in a circular shape and framed on the outer wall of the cable (46); S2. Control the driving mechanism (6) to operate, and push the roller (7) to automatically fit and clamp the outer wall of the cable (46) through the clamping mechanism (8), and control the roller (7) to rotate, so that the device box (1) can move along the route of the cable (46); S3. While the roller (7) is rotating, the arc plate (4) is driven to rotate along the outer wall of the device box (1), and the density and fault characteristics of the power transmission structure are identified and monitored through the surrounding sound print sensor (5); S4. The monitored data is transmitted back to the control center for analysis of internal defects of concrete during high water level construction of the transmission structure.

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