Ultrasonic-based foundation pile nondestructive testing device and method

Abstract

The invention relates to the technical field of foundation pile nondestructive testing and discloses an ultrasonic-based foundation pile nondestructive testing device and method.The ultrasonic-based foundation pile nondestructive testing device comprises an annular shell and an ultrasonic detector, a clamping assembly is arranged in the annular shell, and a power mechanism is arranged at the upper end of the annular shell; an annular moving assembly is arranged on the circumferential surface of the annular shell, a supporting frame is arranged at the upper end of the annular moving assembly, a lifting mechanism is arranged at the upper end of the supporting frame, an adjusting assembly is arranged at the side end of the supporting frame, a first guiding assembly is arranged at the upper end of the adjusting assembly, and a second guiding assembly is arranged at the side end of the adjusting assembly; a cable is inserted into the detection end of the ultrasonic detector, a detection probe is fixedly connected to the end, away from the ultrasonic detector, of the cable, under cooperation of the first guide assembly and the second guide assembly, the cable can be guided, the cables are separated from one another, and therefore the cables are effectively prevented from being wound together.

Description

Technical Field

[0002] This invention relates to the field of non-destructive testing technology for foundation piles, specifically to an ultrasonic-based non-destructive testing device and method for foundation piles. Background Technology

[0004] A pile foundation consists of piles and a pile cap connected to the top of the piles. If the entire pile body is buried in the soil and the bottom surface of the pile cap is in contact with the soil, it is called a low pile cap pile foundation. If the upper part of the pile body is exposed above the ground and the bottom of the pile cap is above the ground, it is called a high pile cap pile foundation. During the construction of the pile foundation, it is necessary to use testing devices to test the integrity of the pile foundation.

[0005] The existing method for testing foundation piles uses ultrasonic transmission. First, multiple sonic logging tubes are pre-embedded inside the pile. Then, the tubes are filled with water. Finally, a cable is connected to the sonic logging probe, which is placed inside the tube. This allows for pile testing. However, during testing, the cable and probe are placed inside the tube, allowing the probe to slide down. Due to the lack of cable guidance, the cable is prone to friction with the tube, affecting its lifespan and impacting subsequent use. Therefore, a solution is urgently needed. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a non-destructive testing device and method for foundation piles based on ultrasonic waves.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a non-destructive testing device for foundation piles based on ultrasound, comprising an annular shell and an ultrasonic testing instrument. A clamping assembly is disposed inside the annular shell, and a power mechanism is disposed at the upper end of the annular shell to provide power to the clamping assembly. The annular shell is fixed to the foundation pile via the clamping assembly. An annular moving assembly is disposed on the circumferential surface of the annular shell, and a support frame is disposed at the upper end of the annular moving assembly. A lifting mechanism is disposed at the upper end of the support frame, and an adjusting assembly is disposed on the side end of the support frame. The support frame is connected to the adjusting assembly via the lifting mechanism. A first guide assembly is disposed at the upper end of the adjusting assembly, and a second guide assembly is disposed on the side end of the adjusting assembly. Two sets of both the first and second guide assemblies are provided. The second guide assembly is disposed along the axial direction of the annular shell. A cable is inserted into the detection end of the ultrasonic testing instrument, passing through the first and second guide assemblies. A detection probe is fixedly connected to the end of the cable away from the ultrasonic testing instrument.

[0009] A further technical solution of the present invention: The power mechanism includes a worm and a worm wheel. A bearing seat is fixedly connected to the upper end of the annular shell. The worm is rotatably installed inside the bearing seat. A first handle is fixedly connected to the end of the worm. A rotating shaft is rotatably connected inside the annular shell. The upper end of the rotating shaft extends out of the annular shell. The worm wheel is fixedly connected to the upper end of the rotating shaft and meshes with the worm. A transmission gear is fixedly connected to the circumferential surface of the rotating shaft in the region of the annular shell. The clamping assembly includes a disc gear and multiple clamping components mounted on the disc gear. The disc gear meshes with the transmission gear and drives the disc gear to rotate, thereby providing power to the multiple clamping components, causing the multiple clamping components to move simultaneously toward the center of the pile foundation or simultaneously toward a position away from the center of the pile foundation.

[0010] A preferred technical solution of the present invention is as follows: the annular moving component includes an annular track, a moving seat, and a locking screw. The annular track is fixedly connected to the circumferential surface of the annular shell. The moving seat is slidably connected to the annular track. The upper end of the moving seat is fixedly connected to the support frame. The locking screw is threadedly connected to the vertical end of the moving seat.

[0011] A preferred technical solution of the present invention: The lifting mechanism includes a guide rod, a connecting plate, an L-shaped plate, a lifting screw, a first bevel gear, a second bevel gear, a transmission shaft, and a second handle. The guide rod is fixedly connected to the upper end of the support frame, and the upper end of the guide rod is fixedly connected to the connecting plate. The L-shaped plate is slidably connected to the circumferential surface of the guide rod. The lifting screw is rotatably connected inside the connecting plate. The lower end of the lifting screw passes through the support frame and is rotatably connected to the support frame. The lifting screw is threadedly connected to the L-shaped plate. The lower end of the lifting screw is fixedly connected to the first bevel gear. The lower end of the support frame is rotatably connected to the transmission shaft. One end of the transmission shaft is fixedly connected to the second handle, and the other end of the transmission shaft is fixedly connected to the second bevel gear, which meshes with the first bevel gear.

[0012] A preferred technical solution of the present invention: Each clamping component of the clamping assembly includes a first sliding hole, a first sliding rod, a first moving rod, a first limiting groove, a first limiting block, and a clamping block. The first sliding hole is opened on the upper end face of the disc gear and is inclined. A first sliding rod is slidably connected inside the first sliding hole. A first moving rod is fixedly connected to both the upper and lower ends of the first sliding rod. The first moving rod passes through the inner arc surface of the annular shell and is slidably connected to the annular shell. A clamping block is fixedly connected to the end of the first moving rod away from the first sliding rod. A first limiting groove is fixedly connected inside the annular shell. A first limiting block is slidably connected inside the first limiting groove. The first limiting block is fixedly connected to the first moving rod.

[0013] A preferred technical solution of the present invention: The adjustment component includes a strip frame, a third handle, a bidirectional threaded rod, and a movable block. The strip frame is fixedly connected to the vertical surface of the L-shaped plate. The bidirectional threaded rod is rotatably connected inside the strip frame. The end of the bidirectional threaded rod is fixedly connected to the third handle. The movable block is threadedly connected to the circumferential surface of the bidirectional threaded rod. The movable block is slidably connected to the strip frame. Two movable blocks are provided and symmetrically distributed on two opposite threaded sections of the bidirectional threaded rod. The internal threads of the two movable blocks have opposite directions. A set of first guide components and a set of second guide components are installed on each movable block.

[0014] A preferred technical solution of the present invention: The first guide assembly includes a mounting frame, a pressure plate, rollers, a second limiting groove, and a second limiting block. The mounting frame is fixedly connected to the upper end of the corresponding moving block. Two rollers are rotatably connected inside the mounting frame and are symmetrically distributed inside the mounting frame. The upper end of the mounting frame is rotatably connected to the pressure plate via a hinge. The upper end of the strip frame is fixedly connected to the second limiting groove, and a second limiting block is slidably connected inside the second limiting groove. The second limiting block is fixedly connected to the mounting frame. The second guide assembly includes a fixed seat and a guide cylinder. The fixed seat is fixedly connected to the vertical surface of the moving block, and a guide cylinder is fixedly connected inside the fixed seat, with the guide cylinder penetrating the fixed seat.

[0015] A preferred technical solution of the present invention: A transmission component is provided on the side end of the second guide component; the transmission component includes a movable disk, a spring, a connecting rod, a second movable rod, a limiting seat, a fixing plate, a second sliding hole, and a second sliding rod. The movable disk is slidably connected to the circumferential surface of the guide cylinder. A connecting rod is fixedly connected to the side end of the movable disk, and a second movable rod is fixedly connected to the upper end of the connecting rod. A fixing plate is fixedly connected to the side end of the pressure plate. A second sliding hole is opened on the vertical surface of the fixing plate. A second sliding rod is slidably connected inside the second sliding hole, and the second sliding rod is fixedly connected to the second movable rod. A limiting seat is fixedly connected to the side end of the fixing seat, and a limiting seat is slidably connected to the second movable rod. A spring is provided on the circumferential surface of the guide cylinder. One end of the spring is fixedly connected to the movable disk, and the other end of the spring is fixedly connected to the fixing seat.

[0016] This invention also provides an ultrasonic-based non-destructive testing method for foundation piles, using the aforementioned ultrasonic-based non-destructive testing device for foundation piles, comprising the following steps:

[0017] S1: The annular shell is fitted onto the foundation pile, and then the power mechanism is used to provide power to the clamping assembly so that the annular shell is fixed on the foundation pile;

[0018] S2: Pass the cable through the inside of the second guide assembly and the first guide assembly, and insert the end of the cable away from the detection probe into the ultrasonic detector;

[0019] S3: Next, adjust the distance between the second guide components and the distance between the first guide components using the adjustment components, so that the second guide components correspond to the acoustic tube;

[0020] S4: Place the detection probe inside the acoustic tube, and then the lifting mechanism works to insert the second guide component into the acoustic tube to guide the cable.

[0021] S5: After the detection probe enters the acoustic tube of the pile, the ultrasonic detector emits ultrasonic pulses to ensure that they pass through the concrete of the pile being tested. Then the ultrasonic detector receives acoustic parameters at different stages and uses the received parameters to test the pile foundation.

[0022] The preferred technical solution of the present invention is as follows: the first guide component includes a mounting frame, a pressure plate, a roller, a second limiting groove, and a second limiting block. The roller is rotatably connected inside the mounting frame, and the pressure plate is rotatably connected to the upper end of the mounting frame via a hinge. The second guide component includes a fixed seat and a guide cylinder. The fixed seat is fixedly connected to the vertical surface of the moving block, and the guide cylinder is fixedly connected inside the fixed seat, with the guide cylinder penetrating through the fixed seat.

[0023] In step S2, the cable is passed through the mounting frame of the first guide assembly, the cable extends along the roller inside the mounting frame and passes through the guide cylinder, and the detection probe is located at the end of the guide cylinder away from the first guide assembly;

[0024] In step S3, the lifting mechanism operates to insert the guide cylinder of the second guide component into the sonic logging tube, thereby guiding the cable.

[0025] The present invention has the following beneficial effects:

[0026] 1. This invention, by setting up an adjustment component, a first guide component, and a second guide component, allows for one-to-one correspondence between the first and second guide components during use. The adjustment component simultaneously adjusts the distance between the first and second guide components, aligning them with the sonic logging tube inside the pile. This facilitates the insertion of the detection probe into the sonic logging tube. Furthermore, the cooperation of the first and second guide components not only guides the cables but also separates them, effectively preventing them from tangling and promoting stable non-destructive testing of the pile.

[0027] 2. By setting up an annular track, a movable seat, and a locking screw, after the clamping assembly fixes the annular shell to the foundation pile, the locking screw is then loosened, which facilitates the movable seat to move on the annular track, thereby driving the support frame to rotate. As the support frame rotates, the guide cylinder rotates, which facilitates the alignment of the guide cylinder with the sonic logging tube, thus making it easier to carry out subsequent testing of the foundation pile.

[0028] 3. This invention, by setting up a movable disk, a connecting rod, a second movable rod, a limiting seat, a fixing plate, a second sliding hole, and a second sliding rod, allows the following operation: After the guide cylinder is inserted into the sonic logging tube, as the guide cylinder extends, the movable disk is squeezed upwards upon contact with the sonic logging tube. This, in conjunction with the connecting rod, causes the second movable rod to slide within the limiting seat, which in turn causes the second sliding rod to slide within the second sliding hole of the fixing plate. At this point, the pressure plate can be rotated, causing it to press against the upper end of the mounting frame. This effectively prevents the cable from detaching from the mounting groove and further prevents the cable from tangling together. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-view perspective;

[0031] Figure 2 This is a schematic diagram of the overall structure of the invention from a second perspective;

[0032] Figure 3 For the present invention Figure 2 Enlarged view of section A in the middle;

[0033] Figure 4 This is a schematic diagram of the overall structure of the invention from a third-person perspective;

[0034] Figure 5 This is a schematic diagram of the structure of the present invention from a side cross-section.

[0035] Figure 6 For the present invention Figure 5 Enlarged view of section B;

[0036] Figure 7 For the present invention Figure 5 Enlarged view of section C;

[0037] Figure 8 This is a schematic diagram of the structure of the present invention from a bottom view cross-section;

[0038] Figure 9 This is a schematic diagram of the structure of the adjustment component, the first guide component, the second guide component, and the transmission component of the present invention after they are combined, from a first-view perspective.

[0039] Figure 10 For the present invention Figure 9 Enlarged view of section D in the middle;

[0040] Figure 11 This is a schematic diagram of the structure of the adjustment component, the first guide component, the second guide component, and the transmission component of the present invention from a second perspective.

[0041] Figure 12 For the present invention Figure 11 Enlarged view of section E in the middle;

[0042] Figure 13 This is a schematic diagram of the internal structure of the regulating component of the present invention.

[0043] In the diagram: 1. Annular housing; 2. Annular moving assembly; 201. Annular track; 202. Moving seat; 203. Locking screw; 3. Support frame; 4. Power mechanism; 401. Bearing seat; 402. Worm gear; 403. Worm wheel; 404. First handle; 405. Rotating shaft; 406. Transmission gear; 5. Clamping assembly; 501. Disc gear; 502. First sliding hole; 503. First sliding rod; 504. First moving rod; 505. First limiting groove; 506. First limiting block; 507. Clamping block; 6. Lifting mechanism; 601. Guide rod; 602. Connecting plate; 603. L-shaped plate; 604. Lifting screw; 605. First bevel gear; 606. Second bevel gear; 60 7. Drive shaft; 608. Second handle; 7. Adjustment assembly; 701. Strip frame; 702. Third handle; 703. Bidirectional threaded rod; 704. Moving block; 8. First guide assembly; 801. Mounting frame; 802. Pressure plate; 803. Roller; 804. Second limiting groove; 805. Second limiting block; 9. Second guide assembly; 901. Fixed seat; 902. Guide cylinder; 10. Transmission assembly; 1001. Moving disc; 1002. Spring; 1003. Connecting rod; 1004. Second moving rod; 1005. Limiting seat; 1006. Fixed plate; 1007. Second sliding hole; 1008. Second sliding rod; 11. Ultrasonic detector; 12. Cable; 13. Detection probe. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 13 All accompanying drawings are simplified versions of embodiments and are intended only to clearly and concisely illustrate the embodiments of the present invention. The technical solutions shown in the drawings below are specific solutions of embodiments of the present invention and are not intended to limit the scope of the claimed invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0046] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] Example 1 provides an ultrasonic-based non-destructive testing device for foundation piles. Please refer to [link / reference]. Figures 1 to 13 The device includes an annular housing 1 and an ultrasonic detector 11. A clamping assembly 5 is installed inside the annular housing 1, and a power mechanism 4 is installed at the upper end of the annular housing 1 to provide power to the clamping assembly 5. The annular housing 1 is fixed to the foundation pile via the clamping assembly 5. An annular moving assembly 2 is installed on the circumference of the annular housing 1. A support frame 3 is installed at the upper end of the annular moving assembly 2, and a lifting mechanism 6 is installed at the upper end of the support frame 3. An adjusting assembly 7 is installed on the side of the support frame 3, and the support frame 3 is connected to the adjusting assembly 7 via the lifting mechanism 6. A first guide assembly 8 is installed at the upper end of the adjusting assembly 7, and a second guide assembly 9 is installed on the side of the adjusting assembly 7. Two sets of both the first guide assembly 8 and the second guide assembly 9 are provided, and the second guide assembly 9 is distributed along the diameter of the annular housing 1. A transmission assembly 10 is installed on the side of the second guide assembly 9. A cable 12 is plugged into the detection end of the ultrasonic detector 11. The cable 12 passes through the inside of the first guide assembly 8 and the second guide assembly 9, and a detection probe 13 is fixedly connected to the end of the cable 12 away from the ultrasonic detector 11.

[0048] In use, the annular shell 1 is fitted onto the foundation pile. Then, the power mechanism 4 operates to provide power to the clamping mechanism. With the cooperation of the clamping mechanism, the annular shell 1 can be stably fixed on the foundation pile. Since multiple clamping mechanisms work simultaneously, the center of the annular shell 1 and the center of the pile foundation can be kept on the same straight line. After fixing the annular shell 1, the distance between the first guide components 8 and the distance between the second guide components 9 are adjusted simultaneously using the adjusting component 7, so that the distance between the two second guide components 9 is the same as the distance between the two sonic logging tubes. Then, the annular moving component 2 drives the support frame 3 to rotate, thereby driving the second guide components 9 to move, so that the second guide components 9 correspond to the sonic logging tubes. After the second guide components 9 are aligned with the sonic logging tubes, the cable 12 is passed through the inside of the first guide components 8 and the second guide components 9 and connected to the ultrasonic detector 11. Then, the detection probe 13 is placed inside the sonic logging tube filled with water. After the probe 13 is inserted, the lifting mechanism 6 drives the second guide component 9 to extend into the acoustic tube, allowing the second guide component 9 to be inserted into the acoustic tube. In this way, with the cooperation of the first guide component 8 and the second guide component 9, the cable 12 can be guided. At the same time, since the two first guide components 8 and the two second guide components 9 are relatively separated, the cable 12 is also separated from each other. As the second guide component 9 extends in, with the cooperation of the transmission component 10, it is beneficial for the cable 12 to move stably inside the first guide component 8. After the probe 13 is inserted into the acoustic tube of the pile, the ultrasonic detector 11 emits ultrasonic pulses, ensuring that they pass through the concrete of the pile being tested. Then, the ultrasonic detector 11 receives acoustic parameters at different stages. Then, the data processing software in the ultrasonic detector 11 comprehensively analyzes and processes all the received information to determine the specific condition of the pile, whether it is complete, whether there are defects, etc.

[0049] In Example 1, as Figure 3 and Figure 6 As shown, the power mechanism 4 includes a bearing seat 401, a worm gear 402, a worm wheel 403, a first handle 404, a rotating shaft 405, and a transmission gear 406. The bearing seat 401 is fixedly connected to the upper end of the annular housing 1. The worm gear 402 is rotatably connected inside the bearing seat 401. The first handle 404 is fixedly connected to the end of the worm gear 402. The rotating shaft 405 is rotatably connected inside the annular housing 1. The worm wheel 403 is fixedly connected to the upper end of the rotating shaft 405. The worm wheel 403 meshes with the worm gear 402. The transmission gear 406 is fixedly connected to the circumferential surface of the rotating shaft 405. During operation, rotating the first handle 404 will drive the rotating shaft 405 to rotate under the cooperation of the worm gear 402 and the worm wheel 403, thereby driving the transmission gear 406 to rotate, thus providing power to the clamping assembly 5.

[0050] In Example 1, as Figure 5 , Figure 6 and Figure 8 As shown, the clamping assembly 5 includes a disc gear 501 and multiple sets of clamping components. These clamping components are arranged in a ring at equal intervals on the surface of the disc gear 501. Each set of clamping components includes a first sliding hole 502, a first sliding rod 503, a first moving rod 504, a first limiting groove 505, a first limiting block 506, and a clamping block 507. The disc gear 501 is rotatably connected inside the annular housing 1 and meshes with the transmission gear 406. The first sliding hole 502 is opened on the upper end face of the disc gear 501 and is inclined. The first sliding hole 502 has a sliding groove inside. A first sliding rod 503 is movably connected, and a first moving rod 504 is fixedly connected to both the upper and lower ends of the first sliding rod 503. The first moving rod 504 passes through the inner arc surface of the annular shell 1 and is slidably connected to the annular shell 1. A clamping block 507 is fixedly connected to the end of the first moving rod 504 away from the first sliding rod 503. The clamping block 507 is located on the inner arc surface of the annular shell 1. A first limiting groove 505 is provided inside the annular shell 1. A first limiting block 506 is slidably connected inside the first limiting groove 505. The first limiting block 506 is fixedly connected to the first moving rod 504. When the clamping assembly 5 is working, the rotation of the transmission gear 406 also drives the disc gear 501 to rotate inside the annular housing 1. During the rotation of the disc gear 501, multiple clamping components can work synchronously. With the cooperation of the first sliding rod 503 and the first sliding hole 502 of each clamping component, the first moving rod 504 can be extended outward. Then, with the cooperation of the first limiting groove 505 and the first limiting block 506, the first moving rod 504 can be stably extended outward. As the first moving rod 504 extends, it drives the clamping block 507 to move closer to the foundation pile, thus achieving the clamping of the foundation pile and making the annular housing 1 stably fixed on the foundation pile.

[0051] In Example 1, as Figure 2 and Figure 4 As shown, the annular moving assembly 2 includes an annular track 201, a moving seat 202, and a locking screw 203. The annular track 201 is fixedly connected to the circumferential surface of the annular shell 1, and the moving seat 202 is slidably connected to the annular track 201. The upper end of the moving seat 202 is fixedly connected to the support frame 3, and the locking screw 203 is threadedly connected to the vertical end of the moving seat 202. During operation, after the clamping assembly 5 fixes the annular shell 1 to the foundation pile, the locking screw 203 is loosened, which facilitates the moving seat 202 on the annular track 201, thereby driving the support frame 3 to rotate. As the support frame 3 rotates, it drives the first guide assembly 8 and the second guide assembly 9 to rotate simultaneously, thereby facilitating the alignment of the guide cylinder 902 with the sonic logging tube, which facilitates the subsequent inspection of the foundation pile.

[0052] In Example 1, as Figures 2 to 7As shown, the lifting mechanism 6 includes a guide rod 601, a connecting plate 602, an L-shaped plate 603, a lifting screw 604, a first bevel gear 605, a second bevel gear 606, a transmission shaft 607, and a second handle 608. The guide rod 601 is fixedly connected to the upper end of the support frame 3. The connecting plate 602 is fixedly connected to the upper end of the guide rod 601. The L-shaped plate 603 is slidably connected to the circumferential surface of the guide rod 601. The lifting screw 604 is rotatably connected inside the connecting plate 602. The lower end of the lifting screw 604 passes through the support frame 3 and is rotatably connected to the support frame 3. The lifting screw 604 is threadedly connected to the L-shaped plate 603. The first bevel gear 605 is fixedly connected to the lower end of the lifting screw 604. The transmission shaft 607 is rotatably connected inside the lower end of the support frame 3. The second handle 608 is fixedly connected to one end of the transmission shaft 607, and the second bevel gear 606 is fixedly connected to the other end of the transmission shaft 607. The second bevel gear 606 meshes with the first bevel gear 605. When the lifting mechanism 6 is working, the second handle 608 is turned. At this time, with the cooperation of the transmission shaft 607, the second bevel gear 606 and the first bevel gear 605, the lifting screw 604 can be driven to rotate, which in turn drives the L-shaped plate 603 to slide on the guide rod 601, thus changing the height of the L-shaped plate 603.

[0053] In Example 1, as Figure 4 , Figures 9 to 13 As shown, the adjustment component 7 includes a strip frame 701, a third handle 702, a bidirectional threaded rod 703, and a moving block 704. The strip frame 701 is fixedly connected to the vertical surface of the L-shaped plate 603. The bidirectional threaded rod 703 is rotatably connected inside the strip frame 701. The bidirectional threaded rod 703 has two symmetrically arranged threads with different directions. The third handle 702 is fixedly connected to the end of the bidirectional threaded rod 703. The moving block 704 is threadedly connected to the circumferential surface of the bidirectional threaded rod 703. The moving block 704 is slidably connected to the strip frame 701. There are two moving blocks 704, which are symmetrically distributed on the two different threaded sections of the bidirectional threaded rod 703, and the internal threads of the two moving blocks 704 have opposite directions. Each movable block 704 is provided with a set of first guide components 8 and a set of second guide components 9. When working, the third handle 702 is rotated. At this time, with the cooperation of the bidirectional threaded rod 703, the two movable blocks 704 can be driven to move towards each other or move in opposite directions. As the two movable blocks 704 move, the distance between the two sets of second guide components 9 and the distance between the two sets of first guide components 8 can be adjusted at the same time.

[0054] In Example 1, as Figures 9 to 13As shown, each first guide assembly 8 includes a mounting frame 801, a pressure plate 802, a roller 803, a second limiting groove 804, and a second limiting block 805. The mounting frame 801 is fixedly mounted on the upper end of the corresponding moving block 704. The roller 803 is rotatably connected inside the mounting frame 801. There are two rollers 803, which are symmetrically distributed inside the mounting frame 801. The pressure plate 802 is rotatably connected to the upper end of the mounting frame 801 via a hinge. The second limiting groove 804 is fixedly connected to the upper end of the strip frame 701. The second limiting block 805 is slidably connected inside the second limiting groove 804. The second limiting block 805 is fixedly connected to the mounting frame 801. During operation, as the moving block 704 moves, the distance between the two mounting frames 801 can be stably adjusted with the cooperation of the second limiting groove 804 and the second limiting block 805. After the distance between the two mounting frames 801 is adjusted, the cable 12 is placed inside the mounting frame 801 and laid on the upper end of the roller 803. In this way, the friction between the cable 12 and the mounting frame 801 can be reduced under the action of the roller 803.

[0055] In Example 1, as Figure 9 and Figure 10 As shown, the second guide assembly 9 includes a fixed base 901 and a guide cylinder 902. The fixed base 901 is fixedly connected to the vertical surface of the movable block 704, and the guide cylinder 902 is fixedly connected inside the fixed base 901, passing through the fixed base 901. During operation, as the two movable blocks 704 move, the guide cylinder 902 also moves with the cooperation of the fixed base 901, thereby changing the distance between the two guide cylinders 902. After the position of the guide cylinder 902 is adjusted, the cable 12 is passed through the guide cylinder 902 to reduce the friction between the cable 12 and the acoustic tube.

[0056] In Example 1, as Figures 9 to 12As shown, the transmission assembly 10 includes a movable disk 1001, a spring 1002, a connecting rod 1003, a second movable rod 1004, a limiting seat 1005, a fixing plate 1006, a second sliding hole 1007, and a second sliding rod 1008. The movable disk 1001 is slidably connected to the circumferential surface of the guide cylinder 902. A connecting rod 1003 is fixedly connected to the side end of the movable disk 1001, and a second movable rod 1004 is fixedly connected to the upper end of the connecting rod 1003. A fixing plate 1006 is fixedly connected to the side end of the pressure plate 802. A second sliding hole 1007 is provided on the vertical surface of 1006. A second sliding rod 1008 is slidably connected inside the second sliding hole 1007. The second sliding rod 1008 is fixedly connected to the second moving rod 1004. A limit seat 1005 is fixedly connected to the side end of the fixed seat 901. The limit seat 1005 is slidably connected to the second moving rod 1004. A spring 1002 is provided on the circumferential surface of the guide cylinder 902. One end of the spring 1002 is fixedly connected to the moving disk 1001, and the other end of the spring 1002 is fixedly connected to the fixed seat 901. During operation, after the guide cylinder 902 is inserted into the sonic logging tube, as the guide cylinder 902 extends in, the moving disk 1001 is squeezed upward after contacting the sonic logging tube. Then, with the cooperation of the connecting rod 1003, the second moving rod 1004 slides inside the limiting seat 1005, which in turn drives the second sliding rod 1008 to slide inside the second sliding hole 1007 of the fixed plate 1006. At this time, the pressure plate 802 can be rotated, so that the pressure plate 802 presses against the upper end of the mounting frame 801. Under the action of the pressure plate 802, the cable 12 can be effectively prevented from falling out of the mounting groove, and the cable 12 can be further prevented from getting tangled. At the same time, the upward movement of the moving disk 1001 also compresses the spring 1002. The compressed spring 1002 helps the moving disk 1001 to reset, which makes it easier to open the pressure plate 802. After use, it is easy to remove the cable 12 from the mounting frame 801.

[0057] Example 2 provides an ultrasonic-based non-destructive testing method for foundation piles. The method uses the ultrasonic-based foundation pile non-destructive testing device described in Example 1, and specifically includes the following steps:

[0058] S1: The annular shell 1 is fitted onto the foundation pile, and then the power mechanism 4 is used to provide power to the clamping assembly 5 so that the annular shell 1 is fixed on the foundation pile.

[0059] S2: Pass the cable 12 through the inside of the second guide assembly 9 and the first guide assembly 8, and insert the end of the cable 12 away from the detection probe 13 into the ultrasonic detector 11;

[0060] S3: Next, use the adjusting component 7 to adjust the distance between the second guide components 9 and the distance between the first guide components 8 so that the second guide components 9 correspond to the acoustic tube;

[0061] S4: Place the detection probe 13 inside the acoustic tube, and then the lifting mechanism 6 works to insert the guide cylinder 902 of the second guide assembly 9 into the acoustic tube to guide the cable 12.

[0062] S5: After the detection probe 13 enters the acoustic tube of the pile, the ultrasonic detector 11 emits ultrasonic pulses, ensuring that they pass through the concrete of the pile being tested. Then, the ultrasonic detector 11 receives acoustic parameters at different stages. The data processing software in the ultrasonic detector 11 then comprehensively analyzes and processes all the received information to determine the specific condition of the pile, such as whether it is complete or has defects.

[0063] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A non-destructive testing device for foundation piles based on ultrasonic waves, characterized in that: The detection device includes an annular housing (1) and an ultrasonic detector (11). A clamping assembly (5) is provided inside the annular housing (1). A power mechanism (4) is provided at the upper end of the annular housing (1). The power mechanism (4) is used to provide power to the clamping assembly (5). The annular housing (1) is fixed to the foundation pile by the clamping assembly (5). An annular moving assembly (2) is provided on the circumferential surface of the annular housing (1). A support frame (3) is provided at the upper end of the annular moving assembly (2). A lifting mechanism (6) is provided at the upper end of the support frame (3). An adjustment assembly (7) is provided at the side end of the support frame (3). The device is connected to the adjustment assembly (7) via the lifting mechanism (6). The adjustment assembly (7) has a first guide assembly (8) at its upper end and a second guide assembly (9) at its side end. Both the first guide assembly (8) and the second guide assembly (9) are provided in two sets. The second guide assembly (9) is arranged along the axial direction of the annular shell (1). The ultrasonic detector (11) has a cable (12) plugged into its detection end. The cable (12) passes through the inside of the first guide assembly (8) and the second guide assembly (9), and a detection probe (13) is fixedly connected to the end of the cable (12) away from the ultrasonic detector (11).

2. The ultrasonic-based non-destructive testing device for foundation piles according to claim 1, characterized in that: The power mechanism (4) includes a worm (402) and a worm wheel (403). A bearing seat (401) is fixedly connected to the upper end of the annular housing (1). The worm (402) is rotatably mounted inside the bearing seat (401). A first handle (404) is fixedly connected to the end of the worm (402). A rotating shaft (405) is rotatably connected inside the annular housing (1). The upper end of the rotating shaft (405) extends out of the annular housing (1). The worm wheel (403) is fixedly connected to the upper end of the rotating shaft (405), and the worm wheel (403) is connected to the worm (402). 2) Meshing: The rotating shaft (405) is fixedly connected to the circumferential surface of the annular housing (1) with a transmission gear (406); the clamping assembly (5) includes a disc gear (501) and multiple clamping components mounted on the disc gear (501). The disc gear (501) meshes with the transmission gear (406) and drives the disc gear (501) to rotate through the transmission gear (406), thereby providing power to the multiple clamping components, so that the multiple clamping components move simultaneously toward the center of the pile foundation or move simultaneously toward a position away from the center of the pile foundation.

3. The ultrasonic-based non-destructive testing device for foundation piles according to claim 1 or 2, characterized in that: The annular moving assembly (2) includes an annular track (201), a moving seat (202), and a locking screw (203). The annular track (201) is fixedly connected to the circumferential surface of the annular housing (1). The moving seat (202) is slidably connected on the annular track (201). The upper end of the moving seat (202) is fixedly connected to the support frame (3). The locking screw (203) is threaded inside the vertical end of the moving seat (202).

4. The ultrasonic-based non-destructive testing device for foundation piles according to claim 1 or 2, characterized in that: The lifting mechanism (6) includes a guide rod (601), a connecting plate (602), an L-shaped plate (603), a lifting screw (604), a first bevel gear (605), a second bevel gear (606), a transmission shaft (607), and a second handle (608). The guide rod (601) is fixedly connected to the upper end of the support frame (3). The connecting plate (602) is fixedly connected to the upper end of the guide rod (601). The L-shaped plate (603) is slidably connected to the circumferential surface of the guide rod (601). The lifting screw (604) is rotatably connected inside the connecting plate (602). The lower end of the screw (604) passes through the support frame (3) and is rotatably connected to the support frame (3). The lifting screw (604) is threadedly connected to the L-shaped plate (603). The lower end of the lifting screw (604) is fixedly connected to the first bevel gear (605). The lower end of the support frame (3) is rotatably connected to the transmission shaft (607). One end of the transmission shaft (607) is fixedly connected to the second handle (608), and the other end of the transmission shaft (607) is fixedly connected to the second bevel gear (606). The second bevel gear (606) meshes with the first bevel gear (605).

5. The ultrasonic-based non-destructive testing device for foundation piles according to claim 2, characterized in that: Each clamping component of the clamping assembly (5) includes a first sliding hole (502), a first sliding rod (503), a first moving rod (504), a first limiting groove (505), a first limiting block (506), and a clamping block (507). The first sliding hole (502) is opened on the upper end face of the disc gear (501) and is inclined. The first sliding rod (503) is slidably connected inside the first sliding hole (502). The first moving rod (504) is fixedly connected to both the upper and lower ends of the first sliding rod (505). 04), the first moving rod (504) penetrates the inner arc surface of the annular shell (1) and is slidably connected to the annular shell (1). A clamping block (507) is fixedly connected to one end of the first moving rod (504) away from the first sliding rod (503). A first limiting groove (505) is fixedly connected inside the annular shell (1). A first limiting block (506) is slidably connected inside the first limiting groove (505). The first limiting block (506) is fixedly connected to the first moving rod (504).

6. The ultrasonic-based non-destructive testing device for foundation piles according to claim 4, characterized in that: The adjustment component (7) includes a strip frame (701), a third handle (702), a bidirectional threaded rod (703), and a moving block (704). The strip frame (701) is fixedly connected to the vertical surface of the L-shaped plate (603). The bidirectional threaded rod (703) is rotatably connected inside the strip frame (701). The third handle (702) is fixedly connected to the end of the bidirectional threaded rod (703). The moving block (704) is threadedly connected to the circumferential surface of the bidirectional threaded rod (703). The moving block (704) is slidably connected to the strip frame (701). There are two moving blocks (704), which are symmetrically distributed on the two opposite threaded sections of the bidirectional threaded rod (703). The internal threads of the two moving blocks (704) are in opposite directions. A set of first guide components (8) and a set of second guide components (9) are installed on each moving block (704).

7. The ultrasonic-based non-destructive testing device for foundation piles according to claim 6, characterized in that: The first guide component (8) includes a mounting frame (801), a pressure plate (802), rollers (803), a second limiting groove (804), and a second limiting block (805). The mounting frame (801) is fixedly connected to the upper end of the corresponding moving block (704). Two rollers (803) are rotatably connected inside the mounting frame (801) and are symmetrically distributed inside the mounting frame (801). The upper end of the mounting frame (801) is rotatably connected to the pressure plate (802) via a hinge. The strip frame (704) 01) A second limiting groove (804) is fixedly connected to the upper end, and a second limiting block (805) is slidably connected inside the second limiting groove (804). The second limiting block (805) is fixedly connected to the mounting frame (801). The second guide component (9) includes a fixed seat (901) and a guide cylinder (902). The fixed seat (901) is fixedly connected to the vertical surface of the moving block (704). The guide cylinder (902) is fixedly connected inside the fixed seat (901). The guide cylinder (902) passes through the fixed seat (901).

8. The ultrasonic-based non-destructive testing device for foundation piles according to claim 7, characterized in that: The second guide assembly (9) has a transmission assembly (10) on its side end; the transmission assembly (10) includes a movable disk (1001), a spring (1002), a connecting rod (1003), a second movable rod (1004), a limiting seat (1005), a fixing plate (1006), a second sliding hole (1007), and a second sliding rod (1008); the movable disk (1001) is slidably connected to the circumferential surface of the guide cylinder (902), and the connecting rod (1003) is fixedly connected to the side end of the movable disk (1001), and the second movable rod (1004) is fixedly connected to the upper end of the connecting rod (1003); the pressure plate (802) is fixedly connected to the side end of the fixing plate (1004). 006), the fixed plate (1006) has a second sliding hole (1007) on its vertical surface, and a second sliding rod (1008) is slidably connected inside the second sliding hole (1007). The second sliding rod (1008) is fixedly connected to the second moving rod (1004). The side end of the fixed seat (901) is fixedly connected to a limiting seat (1005), and the limiting seat (1005) is slidably connected to the second moving rod (1004). The guide cylinder (902) is provided with a spring (1002) on its circumferential surface. One end of the spring (1002) is fixedly connected to the moving disk (1001), and the other end of the spring (1002) is fixedly connected to the fixed seat (901).

9. A non-destructive testing method for foundation piles based on ultrasonic waves, characterized in that: The testing using the ultrasonic-based non-destructive testing device for foundation piles as described in any one of claims 1-8 specifically includes the following steps: S1: The annular shell is fitted onto the foundation pile, and then the power mechanism is used to provide power to the clamping assembly so that the annular shell is fixed on the foundation pile; S2: Pass the cable through the inside of the second guide assembly and the first guide assembly, and insert the end of the cable away from the detection probe into the ultrasonic detector; S3: Next, adjust the distance between the second guide components and the distance between the first guide components using the adjustment components, so that the second guide components correspond to the acoustic tube; S4: Place the detection probe inside the acoustic tube, and then the lifting mechanism works to insert the second guide component into the acoustic tube to guide the cable. S5: After the detection probe enters the acoustic tube of the pile, the ultrasonic detector emits ultrasonic pulses to ensure that they pass through the concrete of the pile being tested. Then the ultrasonic detector receives acoustic parameters at different stages and uses the received parameters to test the pile foundation.

10. The ultrasonic-based non-destructive testing method for foundation piles according to claim 9, characterized in that: The first guide assembly (8) includes a mounting frame (801), a pressure plate (802), a roller (803), a second limiting groove (804), and a second limiting block (805). The roller (803) is rotatably connected inside the mounting frame (801), and the pressure plate (802) is rotatably connected to the upper end of the mounting frame (801) via a hinge. The second guide assembly (9) includes a fixed seat (901) and a guide cylinder (902). The fixed seat (901) is fixedly connected to the vertical surface of the moving block (704), and the guide cylinder (902) is fixedly connected inside the fixed seat (901). The guide cylinder (902) passes through the fixed seat (901). In step S2, the cable is passed through the mounting frame of the first guide assembly, the cable extends along the roller inside the mounting frame and passes through the guide cylinder, and the detection probe is located at the end of the guide cylinder away from the first guide assembly; In step S3, the lifting mechanism operates to insert the guide cylinder of the second guide component into the sonic logging tube, thereby guiding the cable.

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