Foundation pile sound wave transmission integrity detection device

Abstract

The utility model discloses a sound wave transmission integrity detection device for a foundation pile, and relates to the technical field of foundation pile detection equipment. The device comprises a combined frame, the combined frame is composed of four installation frames, one ends of the four installation frames are matched with one another and fixedly connected to form a cross structure, the combined frame is located above a foundation pile protruding part and a plurality of sounding pipes, a fixing disc is fixedly installed at the top of the combined frame, and the fixing disc is fixedly connected with the foundation pile protruding part. The fixing disc is located in the center of the combined frame. According to the foundation pile sound wave transmission integrity detection device, through integrated design, compactness and high efficiency, a motor drives a worm and a worm gear, synchronous movement of a sound detection transducer can be ensured, the detection accuracy is improved, a steering assembly is flexibly adjusted, a cable can vertically enter a pipe, the detection precision and adaptability are enhanced, and an L-shaped clamping plate and an adjusting screw stabilize a fixing device; the bottom fixing plate and the mounting holes enhance the fixing effect, and the overall design greatly improves the detection efficiency and reliability.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile foundation detection equipment, in particular to a pile foundation sound wave transmission integrity detection device. Background Art

[0002] In the field of civil engineering, pile foundations are important supporting parts of building structures, and their quality is directly related to the safety and stability of the entire project. Pile foundation integrity testing is an indispensable part of ensuring project quality.

[0003] In recent years, the acoustic wave transmission method has gradually become the mainstream technology for pile integrity testing due to its advantages such as non-destructive, rapid and accurate. The acoustic wave transmission method transmits sound waves into the acoustic detection tube in the pile, and receives the sound wave signal after passing through the internal medium of the pile. According to the characteristics of the sound wave attenuation and frequency change, the defects inside the pile are analyzed. However, the existing acoustic wave transmission detection device still has the following problems when used:

[0004] When there are multiple acoustic detection tubes in the same foundation pile, the operator needs to set up multiple acoustic detection transducers to complete the detection of the entire foundation pile. However, the lifting and lowering of multiple acoustic detection transducers often requires manual control by the user. During the operation, it is easy to cause uneven lifting speeds and multiple acoustic detection transducers to move out of sync, which is not conducive to the detection of the integrity of the foundation pile.

[0005] The specifications of foundation piles of different building structures are different. Therefore, it is inconvenient to use fixed-structure equipment to detect various types of foundation piles. Its flexibility is not good enough and it is inconvenient to use. Utility Model Content

[0006] The purpose of the utility model is to provide a pile foundation acoustic wave transmission integrity detection device. In the utility model, the pile foundation acoustic wave transmission integrity detection device is compact and efficient through integrated design. The motor-driven worm gear can ensure the synchronous movement of the acoustic detection transducer and improve the detection accuracy. The steering component can be flexibly adjusted to enable the cable to enter the pipe vertically, reduce signal attenuation, and enhance detection accuracy and adaptability. The L-shaped clamping plate and the adjusting screw stabilize the fixing device, and the bottom fixing plate and the mounting hole enhance the fixing effect. The overall design greatly improves the detection efficiency and reliability, and solves the existing technical problems.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] A pile foundation acoustic wave transmission integrity detection device, comprising:

[0009] Combined rack, the combined rack is composed of four mounting racks. One ends of the four mounting racks cooperate with each other and are fixedly connected to form a cross structure. The combined rack is located above the pile cap protrusion and multiple acoustic logging tubes. A fixed disk is fixedly installed at the top of the combined rack, and the fixed disk is located at the center position of the combined rack. The other ends of the four mounting racks are all fixedly installed with support plates for completing the installation and fixation of the combined rack and the pile cap protrusion;

[0010] Four acoustic logging transducers and their cables. One ends of the four acoustic logging transducers are fixedly connected to the cables. The four acoustic logging transducers are arranged in the four acoustic logging tubes for detecting the integrity of the pile cap protrusion;

[0011] It further includes a driving component, and the driving component is used to drive multiple cables to move simultaneously to realize the synchronous movement of the four acoustic logging transducers;

[0012] It further includes four groups of steering components, and the four groups of steering components are respectively arranged in the four mounting racks for completing the steering of the corresponding cables and making the cables vertically enter the acoustic logging tubes.

[0013] Optionally, the driving component includes a rotating shaft that rotatably penetrates the combined rack and the fixed disk. A motor is fixedly installed at the bottom of the combined rack. One end of the output shaft of the motor is fixedly connected with a worm, and the worm meshes with a worm gear. The worm gear is fixedly sleeved on the outer wall of the rotating shaft. A driving wheel is fixedly sleeved on the outer wall of the rotating shaft, and the driving wheel is located above the combined rack. Four second sliding racks are slidably connected to the top of the fixed disk. Third rollers are rotatably connected to the interiors of the four second sliding racks, and multiple third rollers are all matched with the driving wheel for completing the synchronous conveying of multiple cables. Four L-shaped fixing plates are fixedly installed on the outer wall of the fixed disk, and the four L-shaped fixing plates all correspond to the corresponding second sliding racks. Third springs are fixedly installed on one sides of the four L-shaped fixing plates, and the other ends of the four third springs are fixedly connected to one sides of the adjacent second sliding racks for driving the third rollers to closely adhere to the driving wheel.

[0014] Optionally, the steering assembly includes an adjustment groove formed inside the mounting bracket. First sliding grooves are formed on both inner walls of the adjustment groove. A moving bracket is arranged inside the adjustment groove. Limiting screws are fixedly installed on both sides of the moving bracket. One ends of the two limiting screws respectively penetrate through the first sliding groove on the adjacent side and are slidably connected to the inner wall of the first sliding groove. Fixing nuts are threadedly connected to the outer walls of the two limiting screws for fixing the moving bracket. A first roller is rotatably arranged inside the moving bracket. A first sliding bracket is slidably arranged inside the moving bracket. A limiting post fixedly penetrates through the inside of the first sliding bracket. Second sliding grooves are formed on both sides of the moving bracket. Two ends of the limiting post are respectively slidably matched with the inner walls of the two second sliding grooves. A second roller is rotatably sleeved on the outer wall of the limiting post. The second roller is located inside the first sliding bracket. The second roller cooperates with the first roller to complete the positioning and auxiliary steering of the cable. A first spring is fixedly installed on one side of the first sliding bracket. The other end of the first spring is fixedly connected to the inner wall of one side of the moving bracket. The first spring is used to keep the second roller tightly attached to the first roller all the time.

[0015] Optionally, relief grooves are formed inside multiple support plates. Sliders are slidably connected inside the relief grooves. Second springs are fixedly installed on the tops of the sliders. The other ends of the second springs are fixedly connected to the inner walls of the tops of the relief grooves. Adjusting screws threadedly penetrate through the inside of the sliders. An L-shaped clamping plate is rotatably installed at one end of the adjusting screw. The L-shaped clamping plate cooperates with the protruding part of the foundation pile to complete the installation and fixation of the combined rack and the protruding part of the foundation pile.

[0016] Optionally, fixing plates are fixedly installed at the bottoms of multiple support plates. Mounting holes are formed inside the fixing plates. The mounting holes cooperate with fixing screws to fix the support plates on a plane.

[0017] Optionally, the four second sliding brackets are staggered from the four mounting brackets, and the included angle between adjacent second sliding brackets and mounting brackets is 45°.

[0018] The embodiments of the present utility model have the following beneficial effects:

[0019] In the present utility model, a device for detecting the integrity of the acoustic transmission of a foundation pile realizes the integrated design of the acoustic transmission detection of the foundation pile through the ingenious combination of a combined rack, an acoustic detection transducer, a driving assembly and a steering assembly. The overall structure of the device is compact and the installation is simple, greatly improving the detection efficiency.

[0020] In the present utility model, a device for detecting the integrity of a foundation pile by sonic wave transmission uses a motor to drive a worm and worm gear transmission for the driving component. A rotating shaft drives multiple cables to move synchronously, thereby ensuring that four acoustic transducers can enter the sonic wave detection tube synchronously, realizing the synchronous transmission and reception of sonic wave signals, improving the accuracy and reliability of detection. The setting of the worm and worm gear can prevent the cables from moving additionally and ensure good moving stability of the acoustic transducers.

[0021] In the present utility model, a device for detecting the integrity of a foundation pile by sonic wave transmission realizes the flexible steering and positioning of the cables through the cooperation of a first roller and a second roller in the steering component, ensuring that the cables can enter the sonic wave detection tube vertically, reducing signal attenuation caused by cable bending, and improving the detection accuracy. At the same time, the adjustability of the steering component enables the device to adapt to sonic wave detection tubes located at various installation positions, enhancing the adaptability and versatility of the device.

[0022] In the present utility model, a device for detecting the integrity of a foundation pile by sonic wave transmission has an L-shaped clamping plate on the support plate that closely cooperates with the protruding part of the foundation pile and is clamped and fixed by an adjusting screw, ensuring the stability of the device during the detection process. In addition, a fixing plate and mounting holes are provided at the bottom of the support plate, facilitating the fixing of the device on a plane and further improving the safety of the detection operation.

[0023] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 is a three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0026] Figure 2 is a top view structure schematic diagram of an embodiment of the present utility model;

[0027] Figure 3 is a structure schematic diagram of the steering component of an embodiment of the present utility model;

[0028] Figure 4 is an enlarged structure schematic diagram of the support plate of an embodiment of the present utility model;

[0029] Figure 5 is a top view structure schematic diagram of the fixed disk of an embodiment of the present utility model;

[0030] Figure 6 Schematic diagram of the bottom structure of a combined rack according to an embodiment of the present invention.

[0031] In the figure: 1. Combined rack; 2. Fixed disk; 3. Support plate; 4. Foundation pile protrusion; 5. Acoustic logging tube; 6. Mounting rack; 7. Adjustment groove; 8. First sliding groove; 9. Moving rack; 10. First roller; 11. Limit screw; 12. Second sliding groove; 13. First sliding frame; 14. Limit column; 15. Second roller; 16. First spring; 17. Relief groove; 18. Slide block; 19. Second spring; 20. Adjustment screw; 21. L-shaped clamping plate; 22. Mounting hole; 23. L-shaped fixing plate; 24. Third spring; 25. Second sliding frame; 26. Third roller; 27. Rotating shaft; 28. Driving wheel; 29. Worm gear; 30. Worm; 31. Motor. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0034] In order to keep the following description of the embodiments of the present invention clear and concise, the detailed descriptions of known functions and known components are omitted in the present invention.

[0035] Embodiment 1

[0036] Please refer to Figures 1-6 As shown, in this embodiment, a detection device is provided, including: a combined rack 1, a fixed disk 2, a support plate 3, an acoustic logging transducer and its cable, a driving component, and four groups of steering components.

[0037] The combined frame 1 is composed of four mounting frames 6, one ends of which are interconnected to form a stable cross structure; the combined frame 1 is located above the protruding portion 4 of the foundation pile and multiple acoustic detection tubes 5 to ensure that the acoustic detection transducer can smoothly enter the acoustic detection tube; a fixed plate 2 is fixedly installed on the top of the combined frame 1, located in the center position, for supporting and fixing other components, and a support plate 3 is fixedly installed on the other ends of the four mounting frames 6, and a mounting structure is designed on the support plate 3 to facilitate stable installation with the protruding portion 4 of the foundation pile.

[0038] Four acoustic transducers are respectively arranged in four acoustic detection tubes 5, one end of which is fixedly connected to cables. These cables are used to transmit detection signals to ensure that the acoustic transducers can work normally and facilitate the detection of the integrity of the foundation piles; among them, the acoustic transducers are the same as those in the patent with announcement number CN216847622U.

[0039] The driving assembly includes a rotating shaft 27 that rotates through the combined frame 1 and the fixed plate 2; a motor 31 is fixedly installed at the bottom of the combined frame 1, and its output shaft is connected to a worm 30, which meshes with a worm wheel 29, and the worm wheel 29 is fixedly sleeved on the rotating shaft 27. The outer wall of the rotating shaft 27 is also fixedly sleeved with a driving wheel 28, which is located above the combined frame 1; four second sliding frames 25 are slidably connected to the top of the fixed plate 2, and each second sliding frame 25 is rotatably connected to a third roller 26 inside, and these third rollers 26 cooperate with the driving wheel 28. The driving wheel 28 is driven by the motor 31 to achieve synchronous transportation of multiple cables; in addition, in order to ensure that the third roller 26 is close to the driving wheel 28, four L-shaped fixing plates 23 are fixed to the outer wall of the fixed plate 2, and each L-shaped fixing plate 23 is connected to the adjacent second sliding frame 25 through a third spring 24 to ensure stable transmission of driving force.

[0040] A steering assembly is provided inside each mounting frame 6 to realize the steering of the cable and its vertical entry into the acoustic detection tube 5; specifically, the steering assembly includes an adjusting groove 7 opened inside the mounting frame 6, with first slide grooves 8 opened on both sides of the adjusting groove 7, a moving frame 9 is slidably arranged in the adjusting groove 7, and both sides of the moving frame 9 are fixed in the first slide grooves 8 by limiting screws 11 and fixing nuts; a first roller 10 is rotatably arranged inside the moving frame 9, and a first sliding frame 13 is slidably arranged, a limiting column 14 is fixedly passed through the first sliding frame 13, and both ends of the limiting column 14 are slidably matched with the second slide grooves 12 on both sides of the moving frame 9, and a second roller 15 is rotatably sleeved on the limiting column 14, and the second roller 15 cooperates with the first roller 10 to realize the positioning and auxiliary steering of the cable; one side of the first sliding frame 13 is connected to the moving frame 9 by a first spring 16 to ensure that the second roller 15 is continuously close to the first roller 10.

[0041] A relief groove 17 is formed inside the support plate 3, and a slider 18 is slidably connected inside. The top of the slider 18 is connected to the top of the relief groove 17 through a second spring 19. A regulating screw 20 passes through the slider 18 in a threaded manner, and one end of the regulating screw 20 is connected to an L-shaped clamping plate 21. By rotating the regulating screw 20, the L-shaped clamping plate 21 is closely attached to the protruding part 4 of the foundation pile, completing the installation and fixation of the combined rack 1 and the protruding part 4 of the foundation pile.

[0042] This application can be used in the technical field of foundation pile detection equipment, and can also be used in other fields applicable to this application.

[0043] Embodiment 2

[0044] Reference Figure 2 、 4 、5, on the basis of Embodiment 1, an improvement is made: a device for detecting the integrity of foundation piles by sonic transmission, which is applied to the technical field of foundation pile detection equipment;

[0045] In this embodiment, a fixing plate is further fixed at the bottom of the support plate 3, and an installation hole 22 is formed inside the fixing plate. The support plate 3 can be fixed on a plane through fixing screws, further enhancing the stability of the device.

[0046] In this embodiment, the four second sliding frames 25 are staggered from the four mounting frames 6, and the included angle between adjacent second sliding frames 25 and mounting frames 6 is 45°, ensuring the reasonable distribution of multiple cables during installation and facilitating the driving of the cables.

[0047] In this embodiment, a plurality of convex blocks are fixedly installed on the inner wall of the groove of the driving wheel 28 to increase the contact friction with the cable, so as to improve the conveying effect of the cable.

[0048] However, as is well known to those skilled in the art, the working principle and wiring method of the motor 31 are common knowledge, and they all belong to conventional means or well-known common sense. Therefore, they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0049] The usage process and working principle of the technical solution of the present utility model are as follows:

[0050] When in use, the user can push the first sliding frame 13 inside the mobile frame 9, at which time the second roller 15 and the first roller 10 are separated, and the user can ensure that the acoustic transducer is under the mobile frame 9 and its cable passes through the mobile frame 9, and release the push on the first sliding frame 13. The second roller 15 will complete the close contact with the first roller 10 under the action of the first spring 16, and then the cable can be clamped, and then the preliminary installation of other acoustic transducers and their cables can be completed in turn; then the user can move the device to the top of the foundation pile to be detected, and ensure that the mounting frame 6 is located on the acoustic detection pipe 5 during installation. The L-shaped clamping plates 21 are then rotated to fit the top edge of the protruding portion 4 of the pile foundation, and the L-shaped clamping plates 21 cooperate with each other to fix the device. According to the use environment and the height of the protruding portion 4 of the pile foundation, the user can further fix the support plate 3 by cooperating with the fixing screws and the mounting holes 22. After that, the user can put the multiple acoustic transducers into the acoustic detection tube 5 filled with clean water. At the same time, the user can adjust the position of the corresponding mobile frame 9. After adjustment, the fixing nut is used to fix the mobile frame 9 to ensure that the line The cable can move vertically in the acoustic detection tube 5; then the user can dial the corresponding third spring 24 and place the corresponding cable between the rotating shaft 27 and the third roller 26 for subsequent transportation. When the cable is clamped, it should be ensured that its installation direction is consistent to avoid the reverse drive of the cable during transportation; then after ensuring that the cable remains taut, the user can connect the other end of the cable to the host and start the detection of the foundation pile. During the detection, the user can start the motor 31, and the motor 31 will drive the rotating shaft 27 to rotate slowly under the transmission of the worm gear 29 and the worm 30, and the rotating shaft 27 will move synchronously. The driving of multiple cables is conducive to the synchronous movement of multiple acoustic transducers, which can ensure a good detection effect on the pile foundation; finally, the multiple acoustic transducers move to the top of the acoustic detection tube 5, and the detection of the pile foundation is completed at this time; the device can conveniently drive multiple acoustic detection transducers synchronously, which is convenient for operators to use. At the same time, the combined frame 1 can adapt to pile foundations of different specifications, and multiple mobile frames 9 can drive the first roller 10 and the second roller 15 to move, so that the device can adapt to the acoustic detection tubes 5 in different positions, which is convenient for the installation of the acoustic detection transducers and is conducive to ensuring a good detection effect on the integrity of the pile foundation.

[0051] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are merely used to distinguish between various features and have no actual order or directional meaning, and this application is not limited to this.

[0052] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0053] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present utility model, so that those skilled in the relevant technical fields can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A pile acoustic wave transmission integrity detection device, characterized in that: include: A combined frame (1), the combined frame (1) is composed of four mounting frames (6), one ends of the four mounting frames (6) are mutually matched and fixedly connected to form a cross structure, the combined frame (1) is located above the protruding portion (4) of the foundation pile and a plurality of acoustic detection tubes (5), a fixing plate (2) is fixedly installed on the top of the combined frame (1), the fixing plate (2) is located at the center of the combined frame (1), and the other ends of the four mounting frames (6) are all fixedly installed with a support plate (3) for completing the installation and fixation of the combined frame (1) and the protruding portion (4) of the foundation pile; Four acoustic transducers and cables thereof, one end of the four acoustic transducers being fixedly connected to the cables, the four acoustic transducers being arranged in four acoustic detection tubes (5) and used for detecting the integrity of the protruding portion (4) of the pile foundation; Also included is a driving assembly, the driving assembly is used to drive the multiple cables to move simultaneously to achieve synchronous movement of the four acoustic transducers; It also includes four groups of steering assemblies, which are respectively arranged in four mounting frames (6) and are used to complete the steering of corresponding cables and enable the cables to vertically enter the acoustic detection tube (5).

2. A pile foundation acoustic wave transmission integrity detection device as claimed in claim 1, characterized in that: The driving assembly comprises a rotating shaft (27) which rotates and passes through the combined frame (1) and the fixed disk (2); a motor (31) is fixedly installed at the bottom of the combined frame (1); a worm (30) is fixedly connected to one end of the output shaft of the motor (31); a worm gear (29) is meshed with the worm gear (30); the worm gear (29) is fixedly sleeved on the outer wall of the rotating shaft (27); a driving wheel (28) is fixedly sleeved on the outer wall of the rotating shaft (27); the driving wheel (28) is located above the combined frame (1); four second sliding frames (25) are slidably connected to the top of the fixed disk (2); the four second sliding frames (25) The fixing plate (25) is rotatably connected to a third roller (26) inside, and the plurality of third rollers (26) cooperate with a driving wheel (28) to complete the synchronous transmission of the plurality of cables. The outer wall of the fixing plate (2) is fixedly installed with four L-shaped fixing plates (23), and the four L-shaped fixing plates (23) correspond to the corresponding second sliding frames (25). A third spring (24) is fixedly installed on one side of the four L-shaped fixing plates (23), and the other end of the four third springs (24) is fixedly connected to one side of an adjacent second sliding frame (25) to drive the third roller (26) to be close to the driving wheel (28).

3. A pile foundation acoustic wave transmission integrity detection device as claimed in claim 1, characterized in that: The steering assembly comprises an adjusting groove (7) provided inside the mounting frame (6), first sliding grooves (8) are provided on both inner walls of the adjusting groove (7), a moving frame (9) is provided inside the adjusting groove (7), limiting screws (11) are fixedly installed on both sides of the moving frame (9), one end of the two limiting screws (11) respectively penetrates through the first sliding groove (8) on the adjacent side and is slidably connected to the inner wall of the first sliding groove (8), the outer walls of the two limiting screws (11) are threadedly connected to fixing nuts for fixing the moving frame (9), a first roller (10) is rotatably provided inside the moving frame (9), a first sliding frame (13) is slidably provided inside the moving frame (9), and the inner surface of the first sliding frame (13) is provided with a first roller (10) for rotation, and a first sliding frame (13) is slidably provided inside the moving frame (9), and the inner surface of the first sliding frame (13) is provided with a first roller (10) for rotation. The first sliding frame (13) is fixedly penetrated by a limiting column (14), and second sliding grooves (12) are provided on both sides of the movable frame (9). The two ends of the limiting column (14) are respectively slidably matched with the inner walls of the two second sliding grooves (12). The outer wall of the limiting column (14) is rotatably sleeved with a second roller (15), and the second roller (15) is located in the first sliding frame (13). The second roller (15) cooperates with the first roller (10) to complete the positioning and auxiliary steering of the cable. A first spring (16) is fixedly installed on one side of the first sliding frame (13), and the other end of the first spring (16) is fixedly connected to the inner wall of one side of the movable frame (9). The first spring (16) is used to keep the second roller (15) in close contact with the first roller (10).

4. A pile foundation acoustic wave transmission integrity detection device as claimed in claim 1, characterized in that A plurality of support plates (3) are provided with a clearance groove (17) inside, and a slider (18) is slidably connected inside the clearance groove (17). A second spring (19) is fixedly installed on the top of the slider (18), and the other end of the second spring (19) is fixedly connected to the top inner wall of the clearance groove (17). An adjusting screw (20) is passed through the internal thread of the slider (18), and an L-shaped clamping plate (21) is rotatably installed on one end of the adjusting screw (20). The L-shaped clamping plate (21) cooperates with the protruding portion (4) of the pile foundation to complete the installation and fixation of the combined frame (1) and the protruding portion (4) of the pile foundation.

5. A pile foundation acoustic wave transmission integrity detection device as claimed in claim 4, characterized in that: A fixing plate is fixedly mounted on the bottom of each of the plurality of support plates (3), and a mounting hole (22) is provided inside the fixing plate. The mounting hole (22) cooperates with a fixing screw to fix the support plate (3) on a plane.

6. A pile foundation acoustic wave transmission integrity detection device as claimed in claim 2, characterized in that: The four second sliding frames (25) are staggered with the four mounting frames (6), and the angle between adjacent second sliding frames (25) and mounting frames (6) is 45°.

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