A pile foundation integrity testing device

Abstract

The present application relates to a pile foundation integrity testing device, which relates to the technical field of pile foundation testing. The device comprises a bracket and a mounting plate disposed on the bracket, the mounting plate having a mounting hole formed therein, a group of mounting rods symmetrically disposed within the mounting hole, and a plurality of guide wheels rotatably disposed on the mounting rods; a group of retractable racks disposed on the mounting plate, a group of retractable rollers rotatably disposed between the two retractable racks, a retractable assembly disposed on the retractable racks; a detector disposed on the mounting plate, a group of winding racks disposed between the detector and the retractable racks, a retractable roller rotatably disposed between the two retractable racks, a retractable assembly disposed on the retractable racks, a data cable wound around the retractable roller, one end of the data cable connected to a data head that can be connected to or disconnected from the detector, and the other end of the data cable passing through the two retractable rollers and around the guide wheels to be connected to a radial transducer. The present application has the effects of reducing operational difficulty, reducing manual labor, and improving detection accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of pile foundation detection, and in particular to a pile foundation integrity detection device. Background Art

[0002] At present, pile foundation is one of the main foundation forms used in engineering construction, and is widely used in high-rise buildings, bridges, docks, etc.; and in summary of the construction process, pile foundations need to be inspected regularly to understand the internal conditions of the pile foundations regularly to prevent damage to the internal structure of the pile foundations and the inability to effectively support the building.

[0003] Related art provides an isotropic, pressurized piezoelectric crystal transducer for ultrasonic testing of pile foundations. The key technical aspects of the isotropic, pressurized piezoelectric crystal transducer are as follows: the transducer comprises a radially vibrating piezoelectric crystal, stiffening bars, a flexible connection structure, an upper support, a lower support, and a sealed housing. The relatively rigid stiffening plate is replaced with multiple stiffening bars, each of which is connected to the upper and lower supports via flexible connection structures at both ends. This eliminates the effects of the stiffening plate's radial and axial structural stiffness, as well as the axial connection stiffness, on the transducer's radial and axial vibration characteristics, achieving radial horizontal isotropy for the pressurized piezoelectric crystal transducer.

[0004] Regarding the above-mentioned related technologies, the technical solution requires the operator to manually lift the radial transducer from the bottom of the pile foundation to the top of the pile foundation to detect the integrity of the pile foundation during the inspection process. Since manual lifting cannot ensure the uniform rise of the radial transducer, the operation is difficult and requires a lot of labor, so it needs to be improved. Summary of the Invention

[0005] The purpose of this application is to provide a pile foundation integrity detection device, which has the effects of reducing operation difficulty, reducing manual labor, and improving detection accuracy.

[0006] The pile foundation integrity detection equipment provided in this application adopts the following technical solution:

[0007] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod has a round shank to contact with said linking rod.

[0008] By adopting the above technical solution, during detection, the mounting plate is placed above the pile foundation, and the mounting plate is supported by a bracket. Before using the radial transducer for detection, the data cable is wound around the take-up roller and passes between the two take-up rollers. At this time, the data head on the data cable and the detector are separated from each other, the take-up assembly is turned on, and the take-up assembly drives the two take-up rollers to move toward each other. The take-up rollers and the data cable are against each other and the friction is used to pull the data cable to separate the data cable from the take-up roller. At this time, the take-up rollers will rotate between the take-up frames under tension, and the data cable will continue to move away from the take-up rollers after being released by the take-up rollers. The radial transducer at one end of the data cable is placed in the acoustic wave detection tube pre-buried in the pile foundation. As the data cable is continuously released until the radial transducer drops to the bottom of the acoustic wave detection tube; at this time, the take-up assembly is closed and the reel assembly is turned on, and the take-up assembly is driven by the take-up assembly. The winding roller rotates to keep the data cable in a tensioned state; finally, the winding component is closed, the data head and the detector are connected to each other, the retracting component is opened, and the data cable is retracted toward the winding roller. The data cable pulls the radial transducer to continuously lift the radial transducer in the acoustic wave detection tube for detection, so that the data detection is completed by observation using the detector. At this time, the data cable will be recovered on the mounting plate; after the radial transducer is lifted to the highest point of the acoustic wave detection tube to complete the detection, the data head and the detector are separated from each other, the retracting component is closed and the winding component is opened. At this time, the winding component is used to reel the data cable recovered on the mounting plate onto the winding roller to complete the detection work and facilitate the next detection. The entire process does not require manual release and recovery of the data cable. The degree of automation is high, which reduces the difficulty of operation and human labor, and is conducive to keeping the data cable rising synchronously to improve the detection accuracy.

[0009] Optionally, the retracting and unretracting assembly includes a retracting and unretracting gear and a retracting and unretracting motor, one end of the retracting and unretracting roller passes through the retracting and unretracting frame and is interconnected with the retracting and unretracting gear, the two retracting and unretracting gears are engaged with each other, the retracting and unretracting motor is arranged on the retracting and unretracting frame, and the drive shaft of the retracting and unretracting motor is interconnected with one of the retracting and unretracting rollers.

[0010] By adopting the above technical solution, when the data cable needs to be recovered or released, one of the retracting rollers is driven to rotate by the retracting and discharging motor, and the retracting roller drives the retracting gear to rotate. The two retracting gears engage with each other, so that the two retracting gears move toward each other, and the retracting gears drive the retracting rollers to move toward each other. The retracting rollers and the data cables are abutted, thereby driving several data cables to move between the two retracting rollers at the same time. The control is convenient and quick, and the data cables have high stability when moving.

[0011] Optionally, the guide wheel is sleeved on the mounting rod, and a plurality of limit nuts are threadedly connected to the mounting rod, and the limit nuts are located on both sides of the guide wheel; a group of sliding grooves are symmetrically opened on the inner wall of the mounting hole, and sliders are connected to both ends of the mounting rod, and the sliders are slidably set in the sliding grooves, and a sliding assembly is provided on the mounting plate, and the sliding assembly is used to drive the slider to slide in the sliding groove and fix the slider.

[0012] By adopting the above technical solution, when the retracting assembly retracts and releases the data cable, the data cable slides on the guide wheel, and the guide wheel rotates, and the guide wheel can guide the data cable; when inspecting pile foundations of different specifications, the limit nut can be rotated to drive the limit nut to slide on the mounting rod, thereby changing the position of the limit nut on the mounting rod, and then changing the position of the guide wheel on the mounting rod; at the same time, the sliding assembly can be used to drive the driving slider to slide in the slide groove, changing the distance between the two mounting rods, thereby adjusting the guide wheel in the mounting hole, making it convenient to change the position of the guide wheel in the mounting hole, thereby achieving the effect of inspecting pile foundations of different specifications, and improving the applicability of the detection equipment.

[0013] Optionally, the sliding assembly includes a driving rod, a first threaded segment, a second threaded segment and a power assist rod, the driving rod is rotatably arranged in one of the sliding grooves, the first threaded segment and the second threaded segment are symmetrically arranged on the driving rod, and the first threaded segment and the second threaded segment have opposite screwing directions, one of the sliders in the sliding groove is threadedly connected to the first threaded segment, the other slider in the sliding groove is threadedly connected to the second threaded segment, and one end of the driving rod passes through the mounting plate and is connected to the power assist rod.

[0014] By adopting the above technical solution, when the distance between the two mounting rods needs to be adjusted, the power rod is used to drive the driving rod to rotate, and the first thread segment and the second thread segment on the driving rod rotate at the same time. At the same time, the slide groove guides the slider, and the slide groove limits the rotation of the slider, so that one of the sliders slides on the first thread segment and the other slider slides on the second thread segment. Since the screwing directions of the first thread segment and the second thread segment are opposite, the two sliders move toward or away from each other at the same time, thereby adjusting and controlling the distance between the two mounting rods, and the operation is convenient and quick.

[0015] Optionally, the winding assembly includes a winding gear, a winding motor and a transmission gear, one end of the winding roller is interconnected with the winding gear, the winding motor is arranged on the winding frame, the driving shaft of the winding motor is interconnected with the transmission gear, and the transmission gear and the winding gear are engaged with each other.

[0016] By adopting the above technical solution, when it is necessary to drive the winding roller to rotate to reel in the data cable, the winding motor drives the transmission gear to rotate, the transmission gear and the winding gear are offset, driving the winding gear to rotate, and then driving the winding roller to rotate.

[0017] Optionally, a rotating shaft is provided at both ends of the winding roller, and the winding gear is provided at the end of one of the rotating shafts away from the winding roller; a rotating groove is provided at the top of the winding frame for the rotating shaft to be inserted and rotated, and a limiting elastic sheet is provided on the inner wall of the rotating groove.

[0018] By adopting the above technical solution, when installing and connecting the winding roller and the winding frame, the rotating shaft is inserted into the rotating groove, and the rotating shaft first abuts against the limiting elastic sheet, driving the limiting elastic sheet to deform. After the rotating shaft passes through the limiting elastic sheet, it abuts against the bottom wall of the rotating groove. At this time, the limiting elastic sheet restores its shape to limit the rotating shaft, and at the same time, the transmission gear and the winding gear can be engaged with each other, making it convenient to disassemble and assemble the winding roller and the winding frame, thereby facilitating the maintenance and replacement of the data cable.

[0019] Optionally, the winding roller is provided with a plurality of limit disks, the data line is located between the limit disks, and the limit disks are provided with limit holes for the data head to pass through.

[0020] By adopting the above technical solution, when the data cable is wound onto the winding roller, the data cable is wound between the limit plates. The limit plates can reduce the phenomenon of adjacent data cables being entangled with each other, thereby improving the neatness of the data cable winding; and when releasing the data cable, the data head and the detector need to be separated from each other. At this time, the data head is passed through the limit hole, so that the data head is not easily thrown out when the winding roller rotates, thereby facilitating the use of the data head.

[0021] Optionally, the bracket is rotatably connected to the mounting plate, and an abutment block for the bracket to abut against is provided on the mounting plate.

[0022] By adopting the above technical solution, when the bracket needs to be used to support the mounting plate, the bracket and the mounting plate are rotated until the bracket and the mounting plate are tilted. At this time, the abutment block can support the bracket; when storing the equipment, the bracket is rotated to the lower surface of the mounting plate, which is convenient for carrying and storing the detection equipment.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting a bracket, a mounting plate, a mounting hole, a mounting rod, a guide wheel, a retractable rack, a retractable roller, a detector, a reeling rack, a retracting roller, a retracting assembly, a data cable, a data head and a radial transducer, during detection, the retractable assembly is turned on, and the data cable is continuously released away from the retracting roller by the retractable roller, and the radial transducer at one end of the data cable is placed in the acoustic wave detection tube pre-buried in the pile foundation. As the data cable is continuously released until the radial transducer drops to the bottom of the acoustic wave detection tube, the data cable is retracted toward the retractable roller, and the data cable pulls the radial transducer to continuously elevate the radial transducer in the acoustic wave detection tube for detection, thereby completing data detection by observation using the detector. The entire process does not require manual release and recovery of the data cable, has a high degree of automation, reduces operational difficulty, reduces human labor, and is conducive to maintaining the synchronous rise of the data cable to improve detection accuracy;

[0025] 2. By setting up the retractable gear and the retractable motor, when the data cable needs to be recovered or released, the retractable motor drives one of the retractable rollers to rotate, and the retractable roller drives the retractable gear to rotate. The two retractable gears engage with each other, so that the two retractable gears move toward each other, and the retractable gear drives the retractable rollers to move toward each other. The retractable rollers abut against the data cables, thereby driving several data cables to move between the two retractable rollers at the same time. The control is convenient and fast, and the data cables have high stability when moving;

[0026] 3. By setting a limit nut, a slide groove, a slider and a sliding assembly, when the retracting assembly retracts and releases the data cable, the data cable slides on the guide wheel, the guide wheel rotates, and the guide wheel can guide the data cable; when inspecting pile foundations of different specifications, the limit nut can be rotated to drive the limit nut to slide on the mounting rod, thereby changing the position of the limit nut on the mounting rod, and then changing the position of the guide wheel on the mounting rod; at the same time, the sliding assembly can be used to drive the driving slider to slide in the slide groove, changing the distance between the two mounting rods, thereby adjusting the guide wheel in the mounting hole, making it convenient to change the position of the guide wheel in the mounting hole, thereby achieving the effect of inspecting pile foundations of different specifications, and improving the applicability of the inspection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a pile foundation integrity detection device improved in an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the overall structure of a pile foundation integrity detection device improved in an embodiment of the present application;

[0029] In the figure, 1. bracket; 11. mounting plate; 111. detector; 12. abutment block; 2. mounting hole; 21. mounting rod; 211. limiting nut; 22. guide wheel; 23. slide groove; 231. slider; 3. retracting and unretracting frame; 31. retracting and unretracting roller; 4. retracting and unretracting assembly; 41. retracting and unretracting gear; 42. retracting and unretracting motor; 5. rewinding frame; 51. rewinding roller; 511. rotating shaft; 6. rewinding assembly; 61. rewinding gear; 62. rewinding motor; 63. transmission gear; 7. data cable; 71. data head; 72. radial transducer; 8. sliding assembly; 81. driving rod; 82. first thread segment; 83. second thread segment; 84. power assist rod; 9. rotating groove; 91. limiting elastic sheet; 10. limiting disk; 101. limiting hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 2 , further details of this application are given.

[0031] A pile foundation integrity testing device, referring to Figure 1 , comprising a bracket 1 and a mounting plate 11 disposed on the bracket 1. The bracket 1 and the mounting plate 11 are rotatably connected via a rotating shaft, and an abutment block 12 is fixedly disposed on the mounting plate 11. When the bracket 1 needs to support the mounting plate 11, the bracket 1 and the mounting plate 11 are rotated until the bracket 1 and the mounting plate 11 are tilted, at which point the abutment block 12 can abut against the bracket 1 for support.

[0032] Reference Figure 1 A mounting hole 2 is formed through the surface of the mounting plate 11, and a group of mounting rods 21 are symmetrically arranged in the mounting hole 2. The length direction of the mounting rod 21 is arranged along the width direction of the mounting plate 11, and a plurality of guide wheels 22 are rotatably arranged on the mounting rod 21. In this embodiment, two guide wheels 22 are provided on the mounting rod 21.

[0033] Reference Figure 1 and Figure 2A set of retractable racks 3 are symmetrically fixed on the mounting plate 11, and a set of retractable rollers 31 are rotatably arranged between the two retractable racks 3. The two retractable rollers 31 are on the same vertical plane, and the length direction of the retractable rollers 31 is arranged along the length direction of the mounting rod 21. A retractable assembly 4 is provided on the retractable rack 3, and the retractable assembly 4 includes a retractable gear 41 and a retractable motor 42. One end of the retractable roller 31 passes through the retractable rack 3 and is interconnected with the retractable gear 41, and the two retractable gears 41 are meshed with each other. The retractable motor 42 is fixed to the retractable rack 3 by bolts, and the drive shaft of the retractable motor 42 is interconnected with one of the retractable rollers 31. The retractable motor 42 drives one of the retractable rollers 31 to rotate, and the retractable roller 31 drives the retractable gear 41 to rotate, and the two retractable gears 41 mesh with each other, so that the two retractable gears 41 move toward each other, and then the retractable gear 41 drives the retractable rollers 31 to move toward each other.

[0034] Reference Figure 1 and Figure 2 A detector 111 for data detection is also fixedly installed on the mounting plate 11. A group of winding racks 5 are also installed between the detector 111 and the winding rack 3. A winding roller 51 is rotatably installed between the two winding racks 5. The length direction of the winding roller 51 is arranged in the same direction as the length direction of the winding roller 31. A winding assembly 6 is provided on the winding rack 5. The winding assembly 6 includes a winding gear 61, a winding motor 62 and a transmission gear 63. One end of the winding roller 51 is connected to the winding gear 61. The winding motor 62 is installed on the winding rack 5 by bolts. The drive shaft of the winding motor 62 is connected to the transmission gear 63. The transmission gear 63 and the winding gear 61 are meshed with each other. The winding motor 62 drives the transmission gear 63 to rotate, and the transmission gear 63 abuts against the winding gear 61, driving the winding gear 61 to rotate, thereby driving the winding roller 51 to rotate.

[0035] Reference Figure 1 and Figure 2A data cable 7 is wound on the winding roller 51. One end of the data cable 7 is connected to a data head 71 that can be connected to or separated from the detector 111. The other end of the data cable 7 passes through two winding rollers 31 and bypasses the guide wheel 22 to be connected to a radial transducer 72. The winding roller 31 is in contact with the surface of the data cable 7. Before the test, the data head 71 and the detector 111 are separated from each other. At this time, the retracting motor 42 is turned on and the winding motor 62 is turned off. The retracting roller 31 and the data line 7 are pressed against each other to use the friction to pull the data line 7, so that the data line 7 and the winding roller 51 are separated from each other. As the data line 7 is continuously released, the radial transducer 72 drops to the bottom of the acoustic wave detection tube; then the retracting motor 42 is turned off and the winding motor 62 is turned on, and the winding roller 51 is driven to rotate through the winding assembly 6 to keep the data line 7 in a tensioned state; during the test, the winding motor 62 is turned off and the retracting motor 42 is turned on to retract the data line 7 toward the winding roller 51. The data line 7 pulls the radial transducer 72 to continuously lift the radial transducer 72 in the acoustic wave detection tube for detection, thereby completing the data detection by observation using the detector 111. After the detection, the data head 71 and the detector 111 are separated from each other, the retracting assembly 4 is closed and the winding assembly 6 is opened. At this time, the data cable 7 recovered from the mounting plate 11 is wound onto the winding roller 51 using the winding assembly 6.

[0036] Reference Figure 1 The guide wheel 22 is sleeved on the mounting rod 21. Several limit nuts 211 are threadedly connected to the mounting rod 21. The limit nuts 211 are located on both sides of the guide wheel 22. When the retractable assembly 4 retracts or releases the data cable 7, the data cable 7 slides on the guide wheel 22, and the guide wheel 22 rotates to guide the data cable 7. When testing pile foundations of different specifications, the limit nuts 211 can be rotated to drive the limit nuts 211 to slide on the mounting rod 21, thereby changing the position of the limit nuts 211 on the mounting rod 21, and further changing the position of the guide wheel 22 on the mounting rod 21.

[0037] Reference Figure 1 and Figure 2A set of symmetrical slots 23 are formed on the inner wall of the mounting hole 2. The length of the slots 23 runs along the length of the mounting plate 11. Sliders 231 are connected to both ends of the mounting rod 21. The sliders 231 slide within the slots 23 and fit into each other. A sliding assembly 8 is provided on the mounting plate 11. The sliding assembly 8 comprises a drive rod 81, a first threaded segment 82, a second threaded segment 83, and a booster rod 84. The drive rod 81 is rotatably mounted within one of the slots 23. The length of the drive rod 81 runs along the length of the slot 23. The first and second threaded segments 82, 83 are symmetrically integrally formed on the drive rod 81, and the first and second threaded segments 82, 83 screw in opposite directions. One of the slides 231 in the slot 23 is threadedly connected to the first threaded segment 82, while the other slide 231 in the slot 23 is threadedly connected to the second threaded segment 83. One end of the drive rod 81 passes through the mounting plate 11 and is welded to the booster rod 84. The power rod 84 is used to drive the driving rod 81 to rotate, and the first thread segment 82 and the second thread segment 83 on the driving rod 81 rotate at the same time. At the same time, the slide groove 23 guides the slider 231, and the slide groove 23 limits the rotation of the slider 231, so that one slider 231 slides on the first thread segment 82 and the other slider 231 slides on the second thread segment 83, so that the two sliders 231 move toward or away from each other at the same time, changing the distance between the two mounting rods 21, thereby adjusting the guide wheel 22 in the mounting hole 2, facilitating the change of the position of the guide wheel 22 in the mounting hole 2, and achieving the effect of detecting pile foundations of different specifications, thereby improving the applicability of the detection equipment.

[0038] Reference Figure 1 , a rotating shaft 511 is integrally provided at both ends of the winding roller 51, and the length direction of the rotating shaft 511 is arranged along the length direction of the winding roller 51, and the winding gear 61 is fixedly arranged at one end of the rotating shaft 511 away from the winding roller 51. The top of the winding frame 5 is provided with a rotating groove 9 for the rotating shaft 511 to be inserted and rotated, and a limiting elastic piece 91 is fixedly provided on the inner wall of the rotating groove 9. When installing the winding roller 51 and the winding frame 5, the rotating shaft 511 is inserted into the rotating groove 9, and the limiting elastic piece 91 is used to restore the shape to limit the rotating shaft 511. At the same time, the transmission gear 63 and the winding gear 61 can be meshed with each other, making it convenient to disassemble and assemble the winding roller 51 and the winding frame 5, thereby facilitating the maintenance and replacement of the data cable 7.

[0039] Reference Figure 2Several sets of limiting disks 10 are fixedly mounted on the winding roller 51. In this embodiment, four sets of limiting disks 10 are provided. The data cable 7 is located between the limiting disks 10. When the data cable 7 is wound onto the winding roller 51, the data cable 7 is wound between the limiting disks 10. The limiting disks 10 can reduce the entanglement of adjacent data cables 7 and improve the neatness of the winding of the data cable 7. The limiting disks 10 are provided with limiting holes 101 for the data head 71 to pass through. When releasing the data cable 7, the data head 71 needs to be separated from the detector 111. At this time, the data head 71 can be passed through the limiting holes 101. In this way, the data head 71 is not easily thrown out when the winding roller 51 rotates, making it easier to use the data head 71.

[0040] The implementation principle of the embodiment of this application is:

[0041] During testing, the bracket 1 is rotated to support the mounting plate 11, and the mounting plate 11 is arranged above the pile foundation. Then, the limit nut 211 is rotated to adjust the position of the guide wheel 22 on the mounting rod 21, and the power rod 84 is driven to drive the slider 231 to move in the slide groove 23, and the distance between the guide wheels 22 is adjusted to adjust the guide wheels 22 to be directly above the corresponding acoustic wave detection tube.

[0042] Before using the radial transducer 72 for detection, the data cable 7 is wound on the winding roller 51 and passes between the two winding rollers 31. At this time, the data head 71 on the data cable 7 is separated from the detector 111. The winding motor 42 is turned on to drive the two winding rollers 31 to move toward each other. The winding rollers 31 are in contact with the data cable 7 and use friction to pull the data cable 7, separating the data cable 7 from the winding roller 51. At this time, the winding roller 51 is subjected to tension and rotates between the winding frame 5. The data cable 7 is continuously moved away from the winding roller 51 after being released by the winding roller 31. The radial transducer 72 at one end of the data cable 7 is placed in the acoustic wave detection tube pre-buried in the pile foundation. As the data cable 7 is continuously released, the radial transducer 72 drops to the bottom of the acoustic wave detection tube.

[0043] After the radial transducer 72 descends to the bottom of the acoustic wave detection tube, the retracting motor 42 is turned off and the winding motor 62 is turned on. The winding motor 62 drives the winding roller 51 to rotate, keeping the data cable 7 in a taut state. Finally, the winding motor 62 is turned off, the data head 71 is connected to the detector 111, and the retracting motor 42 is turned on to reel the data cable 7 toward the reel roller 51. The data cable 7 pulls the radial transducer 72, continuously lifting the radial transducer 72 within the acoustic wave detection tube for detection. The data detection is then completed by observation using the detector 111. At this point, the data cable 7 is retracted onto the mounting plate 11.

[0044] After the radial transducer 72 is lifted to the highest point of the acoustic wave detection tube and the detection is completed, the data head 71 and the detector 111 are separated from each other, the retracting and discharging motor 42 is turned off and the rewinding motor 62 is turned on. At this time, the rewinding component 6 is used to rewind the data cable 7 recovered on the mounting plate 11 onto the rewinding roller 51 to complete the detection work and facilitate the next detection. The entire process does not require manual release and recovery of the data cable 7. The degree of automation is high, which reduces the difficulty of operation and human labor, and is conducive to maintaining the synchronous rise of the data cable 7 to improve the detection accuracy.

[0045] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A pile foundation integrity detection device, characterized in that: The invention comprises a bracket (1) and a mounting plate (11) arranged on the bracket (1), wherein the mounting plate (11) is provided with a mounting hole (2), a group of mounting rods (21) are symmetrically arranged in the mounting hole (2), and a plurality of guide wheels (22) are rotatably arranged on the mounting rods (21); a group of retractable racks (3) are arranged on the mounting plate (11), a group of retractable rollers (31) are rotatably arranged between two retractable racks (3), a retractable assembly (4) is arranged on the retractable rack (3), and the retractable assembly (4) is used to drive the retractable rack (3) to rotate. The two reeling rollers (31) are driven to move toward each other; a detector (111) is also provided on the mounting plate (11); a group of reeling racks (5) are also provided between the detector (111) and the reeling rack (3); a reeling roller (51) is rotatably provided between the two reeling racks (5); a reeling assembly (6) is provided on the reeling rack (5); the reeling assembly (6) is used to drive the reeling roller (51) to rotate; a data line (7) is wound around the reeling roller (51); one end of the data line (7) is connected to a device that can be connected to the detector ( 111) connected or separated data head (71), the other end of the data line (7) passes through two retractable rollers (31) and passes around the guide wheel (22) to be connected to the radial transducer (72), the retractable roller (31) abuts against the surface of the data line (7); the retractable assembly (4) includes a retractable gear (41) and a retractable motor (42), one end of the retractable roller (31) passes through the retractable frame (3) and is connected to the retractable gear (41), the two retractable gears (41) are meshed with each other, and the retractable motor (42) The winding assembly (6) includes a winding gear (61), a winding motor (62), and a transmission gear (63). One end of the winding roller (51) is connected to the winding gear (61). The winding motor (62) is arranged on the winding frame (5). The driving shaft of the winding motor (62) is connected to the transmission gear (63). The transmission gear (63) and the winding gear (61) are meshed with each other.

2. A pile foundation integrity detection device according to claim 1, characterized in that: The guide wheel (22) is sleeved on the mounting rod (21), and a plurality of limit nuts (211) are threadedly connected to the mounting rod (21), and the limit nuts (211) are located on both sides of the guide wheel (22); a group of slide grooves (23) are symmetrically opened on the inner wall of the mounting hole (2), and sliders (231) are connected to both ends of the mounting rod (21), and the sliders (231) are slidably arranged in the slide grooves (23); a sliding assembly (8) is provided on the mounting plate (11), and the sliding assembly (8) is used to drive the slider (231) to slide in the slide groove (23) and fix the slider (231).

3. A pile foundation integrity detection device according to claim 2, characterized in that: The sliding assembly (8) includes a driving rod (81), a first threaded segment (82), a second threaded segment (83) and a power rod (84), wherein the driving rod (81) is rotatably arranged in one of the sliding grooves (23), the first threaded segment (82) and the second threaded segment (83) are symmetrically arranged on the driving rod (81), and the first threaded segment (82) and the second threaded segment (83) have opposite screwing directions, one of the sliders (231) in the sliding groove (23) is threadedly connected to the first threaded segment (82), and the other slider (231) in the sliding groove (23) is threadedly connected to the second threaded segment (83), and one end of the driving rod (81) passes through the mounting plate (11) and is connected to the power rod (84).

4. The pile foundation integrity detection device according to claim 1, characterized in that: Rotating shafts (511) are provided at both ends of the winding roller (51), and the winding gear (61) is provided at one end of one of the rotating shafts (511) away from the winding roller (51). A rotating groove (9) for inserting and rotating the rotating shaft (511) is provided at the top end of the winding frame (5), and a limiting elastic sheet (91) is provided on the inner wall of the rotating groove (9).

5. The pile foundation integrity detection device according to claim 1, characterized in that: The winding roller (51) is provided with a plurality of groups of limiting disks (10), the data line (7) is located between the limiting disks (10), and the limiting disks (10) are provided with limiting holes (101) for the data head (71) to pass through.

6. The pile foundation integrity detection device according to claim 1, characterized in that: The bracket (1) is rotatably connected to the mounting plate (11), and an abutment block (12) for the bracket (1) to abut is provided on the mounting plate (11).

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