A sampling tool for ultrasonic testing of defects in wind turbine foundation concrete.

Abstract

This application relates to the field of concrete testing auxiliary technology, and in particular to a sampling tool for ultrasonic testing of defects in wind turbine foundation concrete. The tool includes a sampling assembly comprising a first plate, a second plate, and a support rod. Both the first and second plates are fan-shaped. The support rod is positioned along the axis of the wind turbine foundation. Both the first and second plates are perpendicular to the support rod. The inner arc walls of both the first and second plates are flush with the inner wall of the wind turbine foundation, and the outer arc walls of both are flush with the outer wall of the wind turbine foundation. One side of the inner arc wall of both the first and second plates is connected to the support rod. Multiple first sampling holes are evenly distributed on the first plate, with a spacing of 100mm between adjacent holes. The multiple first sampling holes are fan-shaped. Multiple second sampling holes are evenly distributed on the second plate, with each second sampling hole corresponding to one of the first sampling holes. This application improves the efficiency of sampling work.

Description

Technical Field

[0001] This application relates to the field of concrete testing auxiliary technology, and in particular to a sampling tool for ultrasonic testing of defects in wind turbine foundation concrete. Background Technology

[0002] With the continuous development of wind turbine technology, the application of concrete tower wind turbine foundations is becoming increasingly widespread. However, due to their complex structure, inadequate measures during the concrete pouring process may lead to areas of incomplete compaction and voids in the foundation structure. These defects can adversely affect the load-bearing capacity and service life of the wind turbine foundation. Therefore, it is particularly important to detect areas of incomplete compaction and voids in the wind turbine foundation. This helps to identify problems in a timely manner and take corresponding remedial measures to ensure the stable operation of the wind turbine.

[0003] In the detection of loose or void areas in wind turbine foundations, the industry routinely uses ultrasonic testing. According to relevant standards, ultrasonic testing requires that the transmitter and receiver be on the same straight line, and the measurement error of the straight-line distance between measuring points must be strictly controlled. Previously, to meet these requirements, traditional measurement methods were commonly used. Operators would use measuring tools, such as tape measures, to measure and mark measuring points on the surface of the wind turbine foundation. They would manually try to ensure that the transmitter and receiver were on the same straight line and to control the distance error between measuring points as much as possible. In addition, personnel would repeatedly check and adjust the measurements to improve accuracy. However, these procedures often rely on manual judgment and operation, requiring a significant investment of manpower and time, resulting in relatively low efficiency.

[0004] Regarding the aforementioned technologies, since the wind turbine foundation is a circular structure, it is difficult to accurately align the upper and lower measuring points when using traditional measuring methods. Moreover, during manual measurement and marking, the distance error between each measuring point is difficult to control within the specified range, requiring a large investment of manpower and time, which leads to reduced work efficiency. Utility Model Content

[0005] To overcome the above problems, this application provides a sampling tool for ultrasonic testing of defects in wind turbine foundation concrete.

[0006] The sampling tool for ultrasonic testing of defects in wind turbine foundation concrete provided in this application adopts the following technical solution: A sampling tool for ultrasonic testing of defects in wind turbine foundation concrete includes a sampling assembly comprising a first plate, a second plate, and a support rod. Both the first and second plates are fan-shaped. The support rod is positioned along the axis of the wind turbine foundation. The first and second plates are distributed along the direction of the support rod and are perpendicular to it. The inner arc walls of both the first and second plates are flush with the inner wall of the wind turbine foundation, and their outer arc walls are flush with the outer wall. One side of the inner arc wall of the first and second plates is connected to the support rod. Multiple first sampling holes are uniformly formed on the first plate, penetrating along its thickness direction. The distance between adjacent first sampling holes is 100 mm. The multiple first sampling holes are fan-shaped. Multiple second sampling holes are uniformly formed on the second plate, penetrating along its thickness direction. Each second sampling hole corresponds to one of the first sampling holes.

[0007] By adopting the above technical solution, when it is necessary to mark the points on the wind turbine foundation, the first plate and the second plate are connected to the support plate, and the device is moved to the wind turbine foundation so that the fan-shaped first plate and the second plate can fit with the top and bottom of the wind turbine foundation respectively, which facilitates the marking operation. The first plate and the second plate are set perpendicular to the support rod and distributed along its setting direction, which ensures the stability of the structure. The first marking holes and the corresponding second marking holes, which are evenly distributed on the first plate and the second plate with a spacing of 100mm, can accurately mark the position of the measuring points, improve the accuracy of the marking and the efficiency of the work, and avoid the drawbacks of the traditional ruler measurement method.

[0008] In one specific implementation scheme, the first plate is connected to a first arc-shaped plate on one side of its inner arc wall. The arc of the first arc-shaped plate is consistent with the arc of the inner arc wall of the first plate. The opening of the first arc-shaped plate faces the support rod. The side of the first arc-shaped plate away from its opening is in contact with the inner wall of the fan foundation. The side wall of the first arc-shaped plate away from its opening is flush with the inner arc wall of the first plate. The second plate is connected to a second arc-shaped plate on one side of its inner arc wall. The connection method between the second arc-shaped plate and the second plate is consistent with the connection method between the first arc-shaped plate and the first plate.

[0009] By adopting the above technical solution, the first and second arc-shaped plates are respectively connected to one side of the inner arc wall of the first and second flat plates, and the first and second arc-shaped plates are respectively attached to the inner wall of the wind turbine foundation, so that the first and second flat plates fit better with the wind turbine foundation and improve the accuracy of the layout.

[0010] In one specific implementation, one side of the inner arc wall of the first plate and one side of the inner arc wall of the second plate are slidably connected to the support rod, and the first plate and the second plate move toward each other or away from each other. The sampling tool for ultrasonic testing of defects in wind turbine foundation concrete also includes a sliding component, which is connected to the support rod and connected to the first plate and the second plate respectively to drive the first plate and the second plate to move.

[0011] By adopting the above technical solution, the first plate and the second plate can slide along the support rod and move toward or away from each other. With the help of the sliding component to drive the first plate and the second plate, the distance between the first plate and the second plate can be flexibly adjusted, so that the placement tool can adapt to wind turbine foundations of different heights, thereby improving the applicability of the placement tool and the efficiency of placement work.

[0012] In one specific implementation, the sliding assembly includes a transmission component and two sliding rods. A sliding cavity is formed inside the support rod, and the transmission component is located inside the sliding cavity. The transmission component includes a double-ended screw, the direction of which is consistent with the direction of which is which is the support rod, and both ends of the double-ended screw are rotatably connected to the support rod. The support rod has two sliding grooves on the side near the first plate, and the sliding grooves communicate with the sliding cavity. Each of the first plate and the second plate corresponds to one of the sliding grooves. The sliding grooves are opened along the length direction of the support rod. The sliding rod corresponds to each sliding groove and is set perpendicular to the support rod. One end of the sliding rod near the first plate extends into the corresponding sliding groove and is threaded to one end of the double-ended screw, and the other end is connected to the inner arc wall of the first plate. One end of the sliding rod near the second plate extends into the sliding groove and is threaded to the other end of the double-ended screw, and the other end is connected to the inner arc wall of the second plate.

[0013] By adopting the above technical solution, the transmission component and sliding rod of the sliding assembly cooperate. When the double-headed screw rotates, the sliding rod close to the first plate and the second plate slides along the length of the support rod through the threaded connection, thereby driving the first plate and the second plate to move towards or away from each other. This realizes the flexible adjustment of the distance between the first plate and the second plate to adapt to wind turbine foundations of different heights, improves the efficiency and accuracy of the site layout work, and reduces the cost and difficulty of inspection.

[0014] In one specific implementation, the transmission component further includes a first bevel gear, which is coaxially connected to the middle of the double-ended screw; The sliding assembly further includes a driving component, which includes a second bevel gear, a driving rod, and a locking source. The second bevel gear is located inside the sliding cavity and meshes with the first bevel gear. The driving rod is perpendicular to the support rod and passes through the support rod, extending into the sliding cavity and coaxially connected to the second bevel gear. The driving rod is rotatably connected to the support rod. The locking source is connected to the driving rod and can fix the driving rod and the support rod.

[0015] By adopting the above technical solution, the first bevel gear is coaxially connected to the middle of the double-ended screw, the second bevel gear meshes with the first bevel gear, the drive rod rotates to drive the second bevel gear to rotate, and then the first bevel gear and the double-ended screw rotate, so as to realize the adjustment of the distance between the first plate and the second plate to adapt to the wind turbine foundation of different heights; the snap-fit ​​source can fix the drive rod and the support rod to ensure the stability of the device and ensure the accuracy of measurement.

[0016] In one specific implementation, the locking source includes a locking block and a first spring. A placement groove is formed on the drive rod along its length. The locking block is located within the placement groove and slides within the groove towards or away from the support rod. The first spring is located on the side of the locking block away from the support rod, and its orientation is consistent with the orientation of the placement groove. One end of the first spring is connected to the drive rod, and the other end is connected to the locking block. Multiple locking slots that engage with the locking block are formed near the drive rod on the support rod. These slots are evenly distributed circumferentially along the drive rod. When the drive rod does not need to be rotated, the locking block is located within the locking slots, and the first spring does not deform.

[0017] By adopting the above technical solution, the locking block of the locking source cooperates with the first spring. When there is no need to rotate the drive rod, the locking block is located in the locking groove, and the first spring does not deform. This can fix the drive rod and the support rod, ensuring the stability of the device and thus ensuring the accuracy of the measurement.

[0018] In one specific implementation scheme, the end of the sliding rod closest to the first plate that is away from the support rod is detachably connected to one side of the inner arc wall of the first plate, and the end of the sliding rod closest to the second plate that is away from the support rod is detachably connected to one side of the inner arc wall of the second plate.

[0019] By adopting the above technical solution, the sliding rod is detachably connected to the first plate and the second plate, which facilitates the replacement of the first plate and the second plate according to the different sizes of wind turbine foundations. This enables the marking of wind turbine foundations of different sizes, improves the efficiency and accuracy of the site layout work, reduces the inspection cost and difficulty, and meets diverse inspection needs.

[0020] In one specific implementation scheme, two connecting components are further included, each corresponding to a sliding rod. Each connecting component includes two connectors. The first plate has a fixing hole on one side of its inner arc wall for inserting the sliding rod. The two connectors are located on opposite sides of the sliding rod near the first plate. The distribution direction of the two connectors is perpendicular to the setting direction of the support rod. Each sliding rod has a connecting groove at each connector, the connecting groove being arranged along the length of the sliding rod. Each connector includes a connecting rod and a second spring. The connecting rod is an L-shaped rod, with the openings of the two L-shaped rods facing away from each other. The first plate has an insertion hole in the fixing hole for inserting the L-shaped rod. One end of the L-shaped rod is located in the connecting groove, and the L-shaped rod is slidably connected to the sliding rod. The two L-shaped rods move towards or away from each other. The second spring is located in the connecting groove, and the setting direction of the second spring is consistent with the sliding direction of the L-shaped rod. One end of the second spring is connected to the L-shaped rod, and the other end is connected to the sliding rod. The connection method between the connecting component and the first plate is the same as the connection method between the connecting component and the second plate.

[0021] By adopting the above technical solution, the connection component allows the sliding rod to be detachably connected to the first and second plates. After pressing the L-shaped rod, the sliding rod can be connected and separated from the plate, which facilitates the replacement of the first and second plates according to the different sizes of wind turbine foundations. This enables the marking of wind turbine foundations of different sizes, improves the efficiency and accuracy of the site layout work, reduces the inspection cost and difficulty, and meets diverse inspection needs.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The designed ultrasonic testing tool for defects in wind turbine foundation concrete features a fan-shaped first and second plate that fits into the top and bottom of the wind turbine foundation, respectively, facilitating the testing. The first and second plates are perpendicular to the support rod and distributed along its direction, ensuring structural stability. The first and second plates are evenly distributed with 100mm spacing between first and second testing holes, accurately marking the testing points and improving testing accuracy and efficiency, avoiding the drawbacks of traditional ruler-based methods.

[0023] 2. The designed sampling tool for ultrasonic testing of defects in wind turbine foundation concrete has a first arc plate and a second arc plate connected to one side of the inner arc wall of the first plate and the second plate, respectively. The first arc plate and the second arc plate are respectively attached to the inner wall of the wind turbine foundation, so that the first plate and the second plate fit better with the wind turbine foundation and improve the accuracy of sampling.

[0024] 3. The designed sampling tool for ultrasonic testing of defects in wind turbine foundation concrete features a sliding rod that is detachably connected to the first and second plate surfaces. This allows for easy replacement of the first and second plate surfaces for wind turbine foundations of different sizes, enabling marking of foundations of varying dimensions. This improves sampling efficiency and accuracy, reduces testing costs and difficulty, and meets diverse testing needs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the layout tool used for ultrasonic detection of defects in wind turbine foundation concrete according to an embodiment of this application.

[0026] Figure 2 This is a cross-sectional view of this embodiment.

[0027] Figure 3 yes Figure 2 A magnified view of A in the middle.

[0028] Figure 4 This is a schematic diagram of the connection component in this embodiment.

[0029] Explanation of reference numerals in the attached drawings: 1. Dot assembly; 11. First flat plate; 111. First dot hole; 112. First arc-shaped plate; 113. Fixing hole; 114. Insertion hole; 12. Second flat plate; 121. Second dot hole; 122. Second arc-shaped plate; 13. Support rod; 131. Sliding cavity; 132. Sliding groove; 133. Slot; 2. Sliding assembly; 21. Transmission component; 211. Double-ended screw; 212. First bevel gear; 22. Sliding rod; 221. Connecting groove; 23. Driving component; 231. Second bevel gear; 232. Driving rod; 2321. Placement groove; 233. Snap-fit ​​source; 2331. Snap block; 2332. First spring; 3. Connecting assembly; 31. Connecting component; 311. Connecting rod; 312. Second spring. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0031] This application discloses a sampling tool for ultrasonic testing of defects in wind turbine foundation concrete.

[0032] Reference Figure 1 and Figure 2 A sampling tool for ultrasonic testing of defects in concrete for wind turbine foundations includes a sampling component 1, a sliding component 2, and two connecting components 3, wherein the sliding component 2 and the connecting components 3 are both mounted on the sampling component 1.

[0033] Reference Figure 1The layout component 1 includes a first plate 11, a second plate 12, and a support rod 13. Since the wind turbine foundation is annular, in this embodiment, both the first plate 11 and the second plate 12 are fan-shaped plates. The inner arc walls of the first plate 11 and the second plate 12 are flush with the inner wall of the wind turbine foundation, and the outer arc walls of the first plate 11 and the second plate 12 are flush with the outer wall of the wind turbine foundation. The first plate 11 and the second plate 12 are located at the top and bottom of the wind turbine foundation, respectively. The support rod 13 is arranged along the axis of the wind turbine foundation. The first plate 11 and the second plate 12 are distributed along the direction of the support rod 13, and both the first plate 11 and the second plate 12 are perpendicular to the support rod 13. The side of the first plate 11 closest to its inner arc wall is slidably connected to the support rod 13, and the side of the second plate 12 closest to its inner arc wall is slidably connected to the support rod 13. 2. One side of the inner arc wall is slidably connected to the support rod 13. The first plate 11 and the second plate 12 move towards or away from each other along the length direction of the support rod 13, which can adapt to the wind turbine foundation of different heights. Multiple first layout holes 111 are evenly opened on the first plate 11, and the first layout holes 111 penetrate the first plate 11 along the thickness direction of the first plate 11. The distance between two adjacent first layout holes 111 is 100mm. Multiple first layout holes 121 are distributed in a fan shape. Multiple second layout holes 121 are evenly opened on the second plate 12. The second layout holes 121 penetrate the second plate 12 along the thickness direction of the second plate 12, and the second layout holes 121 correspond one-to-one with the first layout holes 111. The distance between two adjacent second layout holes 121 is also 100mm.

[0034] Reference Figure 1 The first plate 11 has a first arc-shaped plate 112 on one side of its inner arc wall. The arc of the first arc plate 112 is consistent with the arc of the inner arc wall of the first plate 11. The first arc plate 112 is welded to one side of the inner arc wall of the first plate 11. The opening of the first arc plate 112 faces the support rod 13. The side of the first arc plate 112 away from its opening is in contact with the inner wall of the wind turbine foundation. The side of the first arc plate 112 away from its opening is flush with the inner arc wall of the first plate 11, further ensuring that the first plate 11 fits snugly against the top of the wind turbine foundation, thus improving the accuracy of the measurement. The second plate 12 has a second arc plate 122 on one side of its inner arc wall. The connection method of the arc plate 122 and the second plate 12 is the same as that of the first arc plate 112 and the first plate 11. When marking the measuring point positions at the top and bottom of the wind turbine foundation, the inner arc wall of the first plate 11 and the inner arc wall of the second plate 12 should be flush with the inner wall of the wind turbine foundation, and the outer arc wall of the first plate 11 and the outer arc wall of the second plate 12 should be flush with the outer wall of the wind turbine foundation. At this time, the first arc plate 112 and the second arc plate 122 are in contact with the inner wall of the wind turbine foundation. Then, the measuring point positions can be marked at the corresponding positions at the top and bottom of the wind turbine foundation through the first marking hole 111 and the second marking hole 121.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The sliding assembly 2 includes a transmission component 21, two sliding rods 22, and a driving component 23. A sliding cavity 131 is formed inside the support rod 13. The transmission component 21 is located within the sliding cavity 131 and includes a double-ended screw 211 and a first bevel gear 212. The double-ended screw 211 is oriented in the same direction as the support rod 13, and both ends of the double-ended screw 211 are rotatably connected to the support rod 13. The first bevel gear 212 is located in the middle of the double-ended screw 211, and the double-ended screw 211 and the first bevel gear 212 are coaxially welded. Two sliding grooves 132 are formed on the side of the support rod 13 near the first flat plate 11, and the sliding grooves 132 communicate with the sliding cavity 131. Plate 11 and the second plate 12 each correspond to a sliding groove 132. The sliding groove 132 is opened along the length direction of the support rod 13. The sliding rod 22 corresponds to the sliding groove 132 one by one. The sliding rod 22 is set perpendicular to the support rod 13. One end of the sliding rod 22 near the first plate 11 extends into the sliding groove 132 and is threaded to one end of the double-ended screw 211. The other end is connected to the first plate 11 through the connecting component 3. One end of the sliding rod 22 near the second plate 12 extends into the sliding groove 132 and is threaded to the other end of the double-ended screw 211. The other end is connected to the second plate 12 through the connecting component 3. The sliding rod 22 can slide along the length direction of the double-ended screw 211.

[0036] Reference Figure 2 and Figure 3The driving component 23 includes a second bevel gear 231, a driving rod 232, and a locking source 233. The second bevel gear 231 is located inside the sliding cavity 131 and in the middle of the support rod 13, meshing with the first bevel gear 212. The driving rod 232 is perpendicular to the support rod 13, passes through the support rod 13, extends into the sliding cavity 131, and is coaxially welded to the second bevel gear 231. The driving rod 232 is rotatably connected to the support rod 13. The locking source 233 includes a locking block 2331 and a first bevel gear 212. A spring 2332 and a drive rod 232 have a placement groove 2321, which is opened along the length of the drive rod 232. A locking block 2331 is located in the placement groove 2321 and can slide within the placement groove 2321 towards or away from the support rod 13. A first spring 2332 is located on the side of the locking block 2331 away from the support rod 13. The orientation of the first spring 2332 is consistent with the orientation of the placement groove 2321. One end of the first spring 2332 is welded to the drive rod 232, and the other end is... The locking block 2331 is welded together. Multiple slots 133, which fit into the locking block 2331, are provided on the support rod 13 near the drive rod 232. These slots 133 are evenly distributed around the drive rod 232. Under normal conditions, without rotating the drive rod 232, the locking block 2331 is located within the slots 133, and the first spring 2332 remains undeformed. When it is necessary to adjust the distance between the first plate 11 and the second plate 12, the operator separates the locking block 2331 from the slots 133. At this time, the first spring 2332 is compressed, and the operator rotates the drive rod 232. 32. Adjust the distance between the first plate 11 and the second plate 12 according to the height of the wind turbine foundation. Through personnel observation, adjust the first plate 11 and the second plate 12 to the appropriate position. Then, release the locking block 2331. The first spring 2332 returns to its original deformation. The locking block 2331 moves closer to the support rod 13. The elastic force of the first spring 2332 can make the locking block 2331 extend into the slot 133, which can fix the drive rod 232 and prevent the drive rod 232 from rotating, thus ensuring the stability of the device and ensuring the accuracy of the measurement.

[0037] Reference Figure 2 and Figure 4The connecting component 3 corresponds one-to-one with the sliding rod 22. The connection method between the connecting component 3 and the first plate 11 is the same as the connection method between the connecting component 3 and the second plate 12. For ease of description, the first plate 11 is used. The connecting component 3 includes two connecting pieces 31. The first plate 11 has a fixing hole 113 on one side of the inner arc wall for the sliding rod 22 to be inserted. The two connecting pieces 31 are located on the two sides directly opposite the sliding rod 22, and the distribution direction of the two connecting pieces 31 is perpendicular to the setting direction of the support rod 13. A connecting groove 221 is provided on each side of the sliding rod 22 facing the connecting member 31. The connecting groove 221 is arranged along the length direction of the sliding rod 22. The connecting member 31 includes a connecting rod 311 and a second spring 312. In this embodiment, the connecting rod 311 is an L-shaped rod, and the openings of the two L-shaped rods face away from each other. The first plate 11 has an insertion hole 114 for inserting the L-shaped rod in the fixing hole 113. One end of the L-shaped rod is located in the connecting groove 221. The L-shaped rod is slidably connected to the sliding rod 22, and the two L-shaped rods face away from each other. The two L-shaped rods move towards each other or away from each other. The second spring 312 is located in the connecting groove 221. The orientation of the second spring 312 is consistent with the sliding direction of the L-shaped rod. One end of the second spring 312 is welded to the L-shaped rod, and the other end is welded to the sliding rod 22. In this embodiment, the second spring 312 is a compression spring. When it is necessary to connect the sliding rod 22 to the first plate 11, the operator presses the two L-shaped rods simultaneously, causing the two L-shaped rods to move towards each other, so that the end of the L-shaped rod away from the second spring 312 is flush with the sliding rod 22. Insert the sliding rod 22 into the fixing hole 113. Then, release the L-shaped rod, which inserts into the insertion hole 114, thus fixing the sliding rod 22 and the first plate 11. When the first plate 11 needs to be replaced, the operator simultaneously presses both L-shaped rods, causing them to move towards each other until the end of the L-shaped rod away from the second spring 312 is flush with the sliding rod 22, separating the sliding rod 22 from the first plate 11 for replacement. Following the above operation, the connection and separation of the sliding rod 22 and the second plate 12 can be achieved. This facilitates the replacement of the first plate 11 and the second plate 12 according to different sizes of wind turbine foundations, enabling the labeling of wind turbine foundations of different sizes.

[0038] The implementation principle of a sampling tool for ultrasonic testing of defects in wind turbine foundation concrete according to an embodiment of this application is as follows: The sampling tool can flexibly adjust the distance between the first plate 11 and the second plate 12 through the sliding component 2 to adapt to wind turbine foundations of different heights. The first arc plate 112 and the second arc plate 122 fit against the inner wall of the wind turbine foundation, so that the plate fits the wind turbine foundation better and improves the accuracy of sampling. The connecting component 3 facilitates the replacement of the first plate 11 and the second plate 12, so that the sampling tool can adapt to wind turbine foundations of different sizes. Compared with the prior art, this sampling tool improves the efficiency and accuracy of sampling work, reduces the detection cost and difficulty, and meets diverse detection needs.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A layout tool for ultrasonic testing of concrete defects in a wind turbine foundation, characterized in that: The system includes a layout assembly (1), which comprises a first plate (11), a second plate (12), and a support rod (13). Both the first plate (11) and the second plate (12) are fan-shaped. The support rod (13) is positioned along the axis of the wind turbine foundation. The first plate (11) and the second plate (12) are distributed along the direction of the support rod (13). Both the first plate (11) and the second plate (12) are perpendicular to the support rod (13). The inner arc wall of the first plate (11) and the inner arc wall of the second plate (12) are flush with the inner wall of the wind turbine foundation. The outer arc wall of the first plate (11) and the outer arc wall of the second plate (12) are flush with the outer wall of the wind turbine foundation. One side of the inner arc wall of the first plate (11) and one side of the inner arc wall of the second plate (12) are both connected to the support rod (13). A plurality of first layout holes (111) are evenly opened on the first plate (11). The first layout holes (111) penetrate the first plate (11) along the thickness direction of the first plate (11). The distance between two adjacent first layout holes (111) is 100mm. The plurality of first layout holes (111) are distributed in a fan shape. A plurality of second layout holes (121) are evenly opened on the second plate (12). The second layout holes (121) penetrate the second plate (12) along the thickness direction of the second plate (12). The second layout holes (121) correspond one-to-one with the first layout holes (111).

2. The point arrangement tool for ultrasonic testing of concrete defects of a fan foundation according to claim 1, characterized in that: The first plate (11) is connected to a first arc plate (112) on one side of its inner arc wall. The arc of the first arc plate (112) is consistent with the arc of the inner arc wall of the first plate (11). The opening of the first arc plate (112) faces the support rod (13). The side of the first arc plate (112) away from its opening is in contact with the inner wall of the fan foundation. The side wall of the first arc plate (112) away from its opening is flush with the inner arc wall of the first plate (11). The second plate (12) is connected to a second arc plate (122) on one side of its inner arc wall. The connection method between the second arc plate (122) and the second plate (12) is consistent with the connection method between the first arc plate (112) and the first plate (11).

3. The point arrangement tool for ultrasonic testing of concrete defects of a fan foundation according to claim 1, characterized in that: One side of the inner arc wall of the first plate (11) and one side of the inner arc wall of the second plate (12) are slidably connected to the support rod (13), and the first plate (11) and the second plate (12) move toward or away from each other. The sampling tool for ultrasonic testing of defects in wind turbine foundation concrete also includes a sliding component (2), which is connected to the support rod (13). The sliding component (2) is connected to the first plate (11) and the second plate (12) respectively to drive the first plate (11) and the second plate (12) to move.

4. The point arrangement tool for ultrasonic testing of concrete defects of a fan foundation according to claim 3, characterized in that: The sliding assembly (2) includes a transmission component (21) and two sliding rods (22). The support rod (13) has a sliding cavity (131) inside. The transmission component (21) is located in the sliding cavity (131). The transmission component (21) includes a double-ended screw (211). The setting direction of the double-ended screw (211) is consistent with the setting direction of the support rod (13). Both ends of the double-ended screw (211) are rotatably connected to the support rod (13). The support rod (13) has two sliding grooves (132) on the side near the first plate (11). The sliding grooves (132) are connected to the sliding cavity (131). The first plate (11) and the second plate (12) each correspond to one of the sliding grooves (132). The sliding grooves (132) are opened along the length direction of the support rod (13). The sliding rod (22) corresponds to the sliding grooves (132) one by one. The sliding rod (22) is perpendicular to the support rod (13). One end of the sliding rod (22) near the first plate (11) extends into the corresponding sliding groove (132) and is threaded to one end of the double-ended screw (211). The other end is connected to the inner arc wall of the first plate (11). One end of the sliding rod (22) near the second plate (12) extends into the sliding groove (132) and is threaded to the other end of the double-ended screw (211). The other end is connected to the inner arc wall of the second plate (12).

5. The point arrangement tool for ultrasonic testing of concrete defects of a fan foundation according to claim 4, characterized in that: The transmission component (21) also includes a first bevel gear (212), which is coaxially connected to the middle part of the double-ended screw (211); The sliding assembly (2) further includes a driving member (23), which includes a second bevel gear (231), a driving rod (232), and a locking source (233). The second bevel gear (231) is located in the sliding cavity (131) and meshes with the first bevel gear (212). The driving rod (232) is perpendicular to the support rod (13). The driving rod (232) passes through the support rod (13), extends into the sliding cavity (131), and is coaxially connected to the second bevel gear (231). The driving rod (232) is rotatably connected to the support rod (13). The locking source (233) is connected to the driving rod (232) and can fix the driving rod (232) and the support rod (13).

6. The point arrangement tool for ultrasonic testing of concrete defects of a fan foundation according to claim 5, characterized in that: The latching source (233) includes a latching block (2331) and a first spring (2332). A placement groove (2321) is formed on the drive rod (232) along its length. The latching block (2331) is located within the placement groove (2321). The latching block (2331) slides within the placement groove (2321) towards or away from the support rod (13). The first spring (2332) is located on the side of the latching block (2331) away from the support rod (13). The orientation of the first spring (2332) is relative to the... The placement slots (2321) are set in the same direction. One end of the first spring (2332) is connected to the drive rod (232), and the other end is connected to the locking block (2331). The support rod (13) has multiple locking slots (133) that fit with the locking block (2331) near the drive rod (232). The multiple locking slots (133) are evenly arranged around the drive rod (232). When there is no need to rotate the drive rod (232), the locking block (2331) is located in the locking slot (133), and the first spring (2332) does not deform.

7. The point arrangement tool for ultrasonic testing of concrete defects of a fan foundation according to claim 4, characterized in that: The sliding rod (22) near the first plate (11) is detachably connected at one end away from the support rod (13) to one side of the inner arc wall of the first plate (11), and the sliding rod (22) near the second plate (12) is detachably connected at one end away from the support rod (13) to one side of the inner arc wall of the second plate (12).

8. The point arrangement tool for ultrasonic testing of concrete defects of a fan foundation according to claim 7, characterized in that: It also includes two connecting components (3), each corresponding to one of the sliding rods (22). Each connecting component (3) includes two connectors (31). The first plate (11) has a fixing hole (113) on one side of its inner arc wall for inserting the sliding rod (22). The two connectors (31) are located on opposite sides of the sliding rod (22) near the first plate (11). The distribution direction of the two connectors (31) is perpendicular to the setting direction of the support rod (13). Each sliding rod (22) has a connecting groove (221) at each connector (31). The connecting groove (221) is set along the length direction of the sliding rod (22). The connector (31) includes a connecting rod (311) and a second spring (312). The connecting rod (311) is an L-shaped rod with the openings of the two L-shaped rods facing away from each other. The first plate (11) has an insertion hole (114) in the fixing hole (113) for inserting the L-shaped rod. One end of the L-shaped rod is located in the connecting groove (221). The L-shaped rod is slidably connected to the sliding rod (22). The two L-shaped rods move towards each other or away from each other. The second spring (312) is located in the connecting groove (221). The setting direction of the second spring (312) is consistent with the sliding direction of the L-shaped rod. One end of the second spring (312) is connected to the L-shaped rod, and the other end is connected to the sliding rod (22). The connecting assembly (3) is connected to the first flat plate (11) and the second flat plate (12) in the same way.

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