A prestressed pipe pile inner surface integrity detection device

Abstract

The application discloses a prestressed pipe pile inner surface integrity detection device, and belongs to the technical field of pipe pile detection. The prestressed pipe pile inner surface integrity detection device comprises a prestressed pipe pile body. One end of the prestressed pipe pile body is respectively provided with a first support shell and a second support shell. A plurality of connecting support pipes are fixedly connected between the first support shell and the second support shell. A moving support mechanism is installed in the first support shell and the second support shell. A rotating adjusting mechanism is rotationally connected between the centers of the first support shell and the second support shell. The two moving support mechanisms and the rotating adjusting mechanism are designed. The rotation of two driving toothed discs is realized through one support connecting rod. The two moving support mechanisms are simultaneously extended to complete support. The device is applicable to the detection of prestressed pipe pile bodies with different diameters.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe pile detection, and particularly relates to a prestressed pipe pile inner surface integrity detection device. BACKGROUND

[0002] The prestressed pipe pile is a kind of prefabricated concrete pile, has the characteristics of high single pile bearing capacity, low unit bearing capacity cost, fast construction speed, reliable pile forming quality and the like, is generally applicable to soft soil, cohesive soil, silt, sandy soil and fully weathered rock mass and the like ground conditions, is widely applied in buildings, railways, highways, bridges, ports and wharfs and the like engineering, can effectively share the load of the upper structure, transfer the load to the ground layer, improve the overall stability, is deeply buried in the soil, enhances the anti-overturning and anti-sliding capacity of the structure, especially performs outstandingly in poor soil conditions or water conditions, can reduce the settlement of the building, maintains the levelness and stability of the structure, is applicable to various geological conditions, including soft soil, filled soil and the like, especially provides support on the foundation with insufficient bearing capacity, and since the pipe pile is produced in advance in the factory, only needs to be punched into the soil in the on-site construction, shortens the construction period, reduces the on-site concrete pouring, and reduces noise and dust pollution.

[0003] In the detection of the prestressed pipe pile, a plurality of detections are generally included, in the detection of the inner surface integrity of the pipe pile, the detection methods mainly include ultrasonic detection, X-ray imaging, magnetic powder detection and eddy current detection and the like, the existing detection device has the problems of detection error or inaccuracy in the use process, and thus affects the detection result. SUMMARY

[0004] The technical problem to be solved by the application is to overcome the defects of the prior art, and provide a prestressed pipe pile inner surface integrity detection device.

[0005] The technical scheme adopted to solve the above technical problem is that a prestressed pipe pile inner surface integrity detection device is provided, which comprises a prestressed pipe pile main body, a first support shell and a second support shell are arranged at one end of the prestressed pipe pile main body, a plurality of connecting support pipes are fixedly connected between the first support shell and the second support shell;

[0006] A moving support mechanism is installed in the first support shell and the second support shell, a rotating adjusting mechanism is rotatably connected between the centers of the first support shell and the second support shell, an energy storage assembly is arranged between the first support shell and the second support shell, and a cleaning mechanism is fixedly connected to the side of the first support shell away from the second support shell.

[0007] The outer walls of both the first and second support shells are fixedly connected with pipe fixing buckles. The center and bottom of the second support shell on the side away from the first support shell are respectively fixedly connected with an ultrasonic transmitting mechanism and a movable pin shaft seat. An extension scale rod is provided on the movable pin shaft seat. An ultrasonic receiving mechanism is installed at the other end of the prestressed pipe pile body.

[0008] Furthermore, the movable support mechanism includes a triangular support limiting shell installed inside the first support shell or the second support shell. Multiple sliding square tubes are slidably connected to the triangular support limiting shell. A volute block is fixedly connected to one side of the bottom of each of the multiple sliding square tubes. A tension spring is installed inside each of the multiple sliding square tubes. A sliding shaft is fixedly connected to the other end of each of the multiple tension springs. Rollers are installed on each of the multiple sliding shafts.

[0009] The above technical solution involves inserting a hexagonal wrench into a square hexagonal slot block and rotating it, which in turn drives two drive gear discs to rotate. Through meshing with multiple volute blocks, multiple sliding square tubes are simultaneously extended outward under the limitation of two triangular support limiting shells until multiple rollers contact the inner wall of the prestressed pipe pile body. At the same time, during the movement, the tension spring can ensure that the movement can continue when encountering protrusions or depressions in the prestressed pipe pile body, thus avoiding jamming.

[0010] Furthermore, both the first and second support housings are provided with multiple through holes corresponding to the sliding square tube.

[0011] The above technical solution ensures that multiple sliding square tubes can extend out of the first and second support shells to fully support the equipment, while also enabling the testing of prestressed pipe piles of different diameters, thus improving the applicability of the equipment.

[0012] Furthermore, the rotation adjustment mechanism includes a support connecting rod rotatably connected between the first support housing and the second support housing. Two drive gears are fixedly connected to the outer wall of the support connecting rod, and a square hexagonal slot block is fixedly connected to one end of the support connecting rod.

[0013] The above technical solution enables the rotation of two drive gear discs through a single support connecting rod, thereby achieving simultaneous extension and support of two mobile support mechanisms.

[0014] Furthermore, the center of the first support housing, the second support housing, and the two triangular support limiting housings are all provided with circular holes corresponding to the support connecting rods.

[0015] The above technical solution ensures that rotational adjustment can be achieved by the support connecting rod passing through the first support shell, the second support shell, and the two triangular support limiting shells.

[0016] Furthermore, the energy storage component includes multiple sets of battery modules, and each set of battery modules is connected by a set of connecting wires.

[0017] The above technical solution uses multiple sets of battery packs to power the components inside the cleaning mechanism and the ultrasonic transmitting mechanism.

[0018] Furthermore, the cleaning mechanism includes an air intake housing and a drive motor fixedly connected to one side of the first support housing. A first guide cone is fixedly connected to the center of one side of the inner wall of the air intake housing, and a rotary connector is rotatably connected to the other side of the inner wall of the air intake housing. A second guide cone is fixedly connected to one side of the inner wall of the rotary connector, and a synchronous gear ring is fixedly connected to the outer wall of the rotary connector. Multiple output air pipes are fixedly connected to the rotary connector on the side away from the air intake housing. A synchronous pulley is fixedly connected to the output end of the drive motor. A synchronous belt is installed between the synchronous gear ring and the synchronous pulley. A connecting rigid pipe is fixedly connected to the outer wall of the air intake housing, and a threaded connector is fixedly connected to the other end of the connecting rigid pipe. An extension tube is provided on the threaded connector.

[0019] The above technical solution starts the drive motor, which in turn drives the synchronous pulley to rotate. The synchronous belt drives the synchronous pulley to rotate, and finally the rotary connector rotates. This allows multiple output air pipes to rotate while continuously spraying air. During the spraying process, the air pump inputs gas into the air inlet housing through the extension pipe and connecting rigid pipe. The first guide cone guides the gas into the rotary connector, and then the second guide cone disperses the airflow to multiple output air pipes around it, achieving continuous spraying. The air spraying method cleans the internal dust of the prestressed pipe pile body.

[0020] Furthermore, the ultrasonic transmitting mechanism includes a mounting housing fixedly connected to one side of the second support housing. Multiple ultrasonic transmitters and controllers are respectively installed inside the mounting housing, and a sealing cover is installed on the other side of the mounting housing.

[0021] Through the above technical solution, multiple ultrasonic transmitters are controlled by a controller to emit sound waves. The sound waves emitted by the multiple ultrasonic transmitters are continuously reflected on the inner wall of the prestressed pipe pile body and finally transmitted to the ultrasonic receiving mechanism at the other end.

[0022] Furthermore, the ultrasonic receiving mechanism includes a fixed ring, a cross support frame is fixedly connected to the inner wall of the fixed ring, an ultrasonic receiver is installed on one side of the cross support frame, and two sets of fixed ears are fixedly connected to the other side of the cross support frame. Two bidirectional threaded rods are rotatably connected to both sets of fixed ears, and two threaded support blocks are rotatably connected to both bidirectional threaded rods.

[0023] Through the above technical solution, by rotating two bidirectional threaded rods, multiple threaded support blocks are driven to expand outward under the limitation of the cross support frame until the multiple threaded support blocks are attached to the inner wall of the prestressed pipe pile body, thus fixing the overall ultrasonic receiving mechanism. At the same time, the ultrasonic receiver is placed in the center position. The sound waves continuously reflected by the inner wall of the prestressed pipe pile body are finally received by the ultrasonic receiver. The integrity of the inner wall of the prestressed pipe pile body can be determined by analyzing the received sound wave signals by computer.

[0024] Furthermore, the two bidirectional threaded rods are not on the same vertical plane, and each of the multiple threaded support blocks has through holes corresponding to the cross support frame.

[0025] The above technical solution ensures that the two bidirectional threaded rods do not affect each other, while the cross support frame limits the movement of multiple threaded support blocks.

[0026] The beneficial effects of the present invention are as follows: (1) The present invention, by designing two moving support mechanisms and a rotating adjustment mechanism, realizes the rotation of two drive gear discs through a single support connecting rod. Through meshing with multiple vortex blocks, multiple sliding square tubes are driven to extend outward simultaneously under the limitation of two triangular support limiting shells until multiple rollers contact the inner wall of the prestressed pipe pile body. This achieves the simultaneous extension of the two moving support mechanisms to complete the support, enabling the detection of prestressed pipe pile bodies of different diameters and improving the applicability of the equipment; (2) The present invention, by designing a moving support mechanism and an ultrasonic receiving mechanism, enables the adjustment of the two moving support mechanisms to complete the rotation of two drive gear discs through a single support connecting rod. Through meshing with multiple vortex blocks, multiple sliding square tubes are driven to extend outward simultaneously under the limitation of two triangular support limiting shells until multiple rollers contact the inner wall of the prestressed pipe pile body. This achieves the simultaneous extension of the two moving support mechanisms to complete the support, enabling the detection of prestressed pipe pile bodies of different diameters and improving the applicability of the equipment; (2) The present invention, by designing a moving support mechanism and an ultrasonic receiving mechanism, realizes the adjustment of two moving support mechanisms to complete the rotation of two drive gear discs through a single support connecting rod. This achieves the adjustment of two drive gear discs through a single support connecting rod and a single rotating adjustment mechanism. At the same time, by means of the structure of the two drive gear discs in the rotary adjustment mechanism and the structure of the two bidirectional threaded rods in the ultrasonic receiving mechanism, the ultrasonic transmitting mechanism and the ultrasonic receiver can be located at the center of the prestressed pipe pile body, ensuring the accuracy of the detection and reducing the detection error; (3) By designing a cleaning mechanism, when the device moves inside the prestressed pipe pile body, the drive motor drives the rotary connector to rotate, so that multiple output air pipes can rotate while continuously spraying air, and the dust inside the prestressed pipe pile body is cleaned by spraying air, reducing the influence of dust inside the prestressed pipe pile body on the detection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the device of the present invention installed inside the prestressed pipe pile body;

[0028] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure;

[0029] Figure 3 This is a schematic diagram of the combined structure of the present invention;

[0030] Figure 4 yes Figure 3A magnified view of a section at point A in the middle;

[0031] Figure 5 This is a schematic diagram of the processing and transmitting device structure of the present invention;

[0032] Figure 6 This is a cross-sectional structural diagram of the mobile support mechanism of the present invention;

[0033] Figure 7 This is a schematic diagram of the mobile support mechanism structure of the present invention;

[0034] Figure 8 This is a schematic diagram of a portion of the mobile support mechanism of the present invention;

[0035] Figure 9 This is a schematic diagram of the movable support mechanism and the rotation adjustment mechanism of the present invention;

[0036] Figure 10 This is a schematic diagram of the rotary adjustment mechanism of the present invention;

[0037] Figure 11 yes Figure 5 A schematic diagram of the cross-sectional structure;

[0038] Figure 12 yes Figure 5 A side view of the three-dimensional structure;

[0039] Figure 13 This is a schematic diagram of the cleaning mechanism of the present invention;

[0040] Figure 14 This is a schematic diagram of the internal structure of the ultrasonic transmitting mechanism of the present invention;

[0041] Figure 15 This is a schematic diagram of the ultrasonic receiving mechanism of the present invention;

[0042] Figure 16 This is an exploded structural diagram of the ultrasonic receiving mechanism of the present invention.

[0043] Reference numerals: 1. Prestressed concrete pipe pile body; 2. First support shell; 3. Second support shell; 4. Connecting support pipe; 5. Moving support mechanism; 501. Triangular support limiting shell; 502. Sliding square tube; 503. Vortex block; 504. Contraction spring; 505. Sliding shaft column; 506. Roller; 6. Rotation adjustment mechanism; 601. Support connecting rod; 602. Drive gear plate; 603. Square hexagonal slot block; 7. Energy storage component; 71. Battery assembly; 72. Connecting wire assembly; 8. Cleaning mechanism; 801. Air intake shell; 802. First guide cone; 803. Rotary connector; 804. Second guide cone; 805. 806. Synchronous gear ring; 807. Output air pipe; 808. Drive motor; 809. Synchronous pulley; 810. Synchronous belt; 811. Connecting rigid pipe; 812. Threaded connector; 813. Extension pipe; 9. Pipe fixing lock; 10. Ultrasonic transmitting mechanism; 1001. Mounting housing; 1002. Ultrasonic transmitter; 1003. Controller; 1004. Sealing cover; 11. Movable pin shaft seat; 12. Extension scale rod; 13. Ultrasonic receiving mechanism; 1301. Fixing ring; 1302. Cross support frame; 1303. Ultrasonic receiver; 1304. Fixing lug; 1305. Bidirectional threaded rod; 1306. Threaded support block. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0045] like Figures 1-4 As shown, a prestressed pipe pile inner surface integrity detection device of this embodiment includes a prestressed pipe pile body 1, a first support shell 2 and a second support shell 3 respectively provided at one end of the prestressed pipe pile body 1, and a plurality of connecting support pipes 4 fixedly connected between the first support shell 2 and the second support shell 3.

[0046] like Figures 1-9As shown, both the first support housing 2 and the second support housing 3 are equipped with a movable support mechanism 5. The movable support mechanism 5 includes a triangular support limiting shell 501 installed inside the first support housing 2 or the second support housing 3. Multiple sliding square tubes 502 are slidably connected to the triangular support limiting shell 501. A volute block 503 is fixedly connected to one side of the bottom of each of the multiple sliding square tubes 502. A tension spring 504 is installed inside each of the multiple sliding square tubes 502. A sliding shaft 505 is fixedly connected to the other end of each of the multiple tension springs 504. Rollers 506 are installed on each of the multiple sliding shafts 505. A hexagonal wrench is inserted into the square hexagonal slot block 603 to rotate it, thereby driving the two drive gear discs 602 to rotate. Through engagement with multiple vortex blocks 503, multiple sliding square tubes 502 are driven to extend outward simultaneously under the limitation of two triangular support limiting shells 501 until multiple rollers 506 contact the inner wall of the prestressed pipe pile body 1. At the same time, during the movement, the tension spring 504 can ensure that the movement can continue when encountering a protrusion or depression in the prestressed pipe pile body 1, avoiding jamming. Multiple through holes corresponding to the sliding square tubes 502 are opened on the first support shell 2 and the second support shell 3, ensuring that multiple sliding square tubes 502 can extend out of the first support shell 2 and the second support shell 3, providing complete support for the equipment. At the same time, it realizes the detection of prestressed pipe pile bodies 1 with different diameters, improving the applicability of the equipment.

[0047] like Figures 1-10 As shown, a rotation adjustment mechanism 6 is rotatably connected between the centers of the first support housing 2 and the second support housing 3. The rotation adjustment mechanism 6 includes a support connecting rod 601 rotatably connected between the first support housing 2 and the second support housing 3. Two drive gear discs 602 are fixedly connected to the outer wall of the support connecting rod 601. A square hexagonal slot block 603 is fixedly connected to one end of the support connecting rod 601. The rotation of the two drive gear discs 602 is completed through one support connecting rod 601, thereby realizing the simultaneous extension and support of the two movable support mechanisms 5. The first support housing 2 and the second support housing 3 are connected. The center of the support housing 3 and the two triangular support limiting shells 501 are all provided with circular holes corresponding to the support connecting rod 601, so as to ensure that the support connecting rod 601 can be rotated and adjusted by passing through the first support housing 2, the second support housing 3 and the two triangular support limiting shells 501. An energy storage component 7 is provided between the first support housing 2 and the second support housing 3. The energy storage component 7 includes multiple sets of battery components 71. Each set of battery components 71 is provided with a connecting wire group 72. The multiple sets of battery components 71 provide power to the cleaning mechanism 8 and the ultrasonic transmitting mechanism 10 respectively.

[0048] like Figures 1-13As shown, a cleaning mechanism 8 is fixedly connected to the first support housing 2 on the side away from the second support housing 3. The cleaning mechanism 8 includes an air intake housing 801 fixedly connected to one side of the first support housing 2 and a drive motor 807. A first guide cone 802 is fixedly connected to the center of one side of the inner wall of the air intake housing 801. A rotary connector 803 is rotatably connected to the other side of the inner wall of the air intake housing 801. A second guide cone 804 is fixedly connected to one side of the inner wall of the rotary connector 803. A synchronous gear ring 805 is fixedly connected to the outer wall of the rotary connector 803. Multiple output air pipes 806 are fixedly connected to the rotary connector 803 on the side away from the air intake housing 801. A synchronous pulley 808 is fixedly connected to the output end of the drive motor 807. A synchronous belt 809 is installed between the synchronous gear ring 805 and the synchronous pulley 808. A connecting rigid pipe 810 is fixedly connected to the outer wall, and a threaded connector 811 is fixedly connected to the other end of the connecting rigid pipe 810. An extension pipe 812 is provided on the threaded connector 811. The drive motor 807 is started, which drives the synchronous pulley 808 to rotate. The synchronous pulley 808 is driven to rotate through the synchronous belt 809, and finally the rotary connector 803 is rotated, so that multiple output air pipes 806 can rotate while continuously spraying air. During the spraying process, the air pump inputs gas into the air inlet housing 801 through the extension pipe 812 and the connecting rigid pipe 810. The gas is guided into the rotary connector 803 through the first guide cone 802, and then the airflow is dispersed to the multiple output air pipes 806 around the perimeter through the second guide cone 804 to achieve continuous spraying. The dust inside the prestressed pipe pile body 1 is cleaned by spraying air.

[0049] like Figures 1-16As shown, pipe fixing latches 9 are fixedly connected to the outer walls of both the first support housing 2 and the second support housing 3. An ultrasonic transmitting mechanism 10 and a movable pin bearing 11 are fixedly connected to the center and bottom of the second support housing 3 on the side away from the first support housing 2, respectively. The ultrasonic transmitting mechanism 10 includes a mounting housing 1001 fixedly connected to one side of the second support housing 3. Multiple ultrasonic transmitters 1002 and a controller 1003 are installed inside the mounting housing 1001. A sealing cover 1004 is installed on the other side of the mounting housing 1001. The controller 10... 03. Multiple ultrasonic transmitters 1002 are controlled to emit sound waves. The sound waves emitted by the multiple ultrasonic transmitters 1002 are continuously reflected on the inner wall of the prestressed pipe pile body 1 and finally transmitted to the ultrasonic receiving mechanism 13 at the other end. An extension scale rod 12 is provided on the movable pin shaft seat 11. The ultrasonic receiving mechanism 13 is installed at the other end of the prestressed pipe pile body 1. The ultrasonic receiving mechanism 13 includes a fixing ring 1301. A cross support frame 1302 is fixedly connected to the inner wall of the fixing ring 1301. An ultrasonic receiver 1303 is installed on one side of the cross support frame 1302. Two sets of fixing ears 1304 are fixedly connected to the other side of the cross support frame 1302. Each of the two sets of fixing ears 1304 is rotatably connected to a bidirectional threaded rod 1305. Each of the two bidirectional threaded rods 1305 is rotatably connected to two threaded support blocks 1306. By rotating the two bidirectional threaded rods 1305, the multiple threaded support blocks 1306 are driven to expand outwards under the limitation of the cross support frame 1302 until the multiple threaded support blocks 1306 are attached to the inner wall of the prestressed pipe pile body 1, thus completing the fixation of the overall ultrasonic receiving mechanism 13 and simultaneously enabling the ultrasonic receiver to... The receiver 1303 is located in the center. The sound waves continuously reflected from the inner wall of the prestressed pipe pile body 1 are finally received by the ultrasonic receiver 1303. The integrity of the inner wall of the prestressed pipe pile body 1 can be determined by analyzing the received sound wave signals by computer. The two bidirectional threaded rods 1305 are not on the same vertical plane, and multiple threaded support blocks 1306 are provided with through holes corresponding to the cross support frame 1302, which ensures that the two bidirectional threaded rods 1305 do not affect each other. At the same time, the cross support frame 1302 realizes the limitation of the movement of multiple threaded support blocks 1306.

[0050] The working principle of this embodiment is as follows: In use, the processing and launching device, which consists of the first support housing 2, the second support housing 3, the connecting support pipe 4, the moving support mechanism 5, the rotating adjustment mechanism 6, the energy storage component 7, the cleaning mechanism 8, the pipe fixing lock 9, and the movable pin seat 11, is placed on one side of the prestressed pipe pile body 1. An extension pipe 812 for connecting the air pump is installed on the threaded connector 811, and an extension scale rod 12 is installed on the movable pin seat 11. Then, a hexagonal wrench is inserted into the square hexagonal slot block 603 for rotation. The movement causes the two drive gear discs 602 to rotate. Through meshing with multiple vortex blocks 503, multiple sliding square tubes 502 extend outward simultaneously under the limitation of two triangular support limiting shells 501 until multiple rollers 506 contact the inner wall of the prestressed pipe pile body 1. At the same time, during the movement, the tension spring 504 can ensure that the movement can continue when encountering a protrusion or depression in the prestressed pipe pile body 1, avoiding jamming. At this time, it ensures that the ultrasonic transmitting mechanism 10 is in the center position of the prestressed pipe pile body 1.

[0051] Then, by pushing the extension scale rod 12, the overall processing and launching equipment is moved forward. At the same time, the drive motor 807 is started, which drives the synchronous wheel 808 to rotate. The synchronous belt 809 drives the synchronous wheel 808 to rotate, and finally the rotary connector 803 is rotated, so that multiple output air pipes 806 can rotate while continuously spraying air. During the spraying process, the air pump inputs gas into the air inlet housing 801 through the extension pipe 812 and the connecting hard pipe 810. The gas is guided into the rotary connector 803 through the first guide cone 802, and then the airflow is dispersed to the multiple output air pipes 806 around the perimeter through the second guide cone 804 to achieve continuous spraying. The dust inside the prestressed pipe pile body 1 is cleaned by spraying air.

[0052] After the overall processing and transmitting equipment is moved to the other end of the prestressed pipe pile body 1, the ultrasonic receiving mechanism 13 is installed. By rotating the two bidirectional threaded rods 1305, multiple threaded support blocks 1306 are driven to expand outward under the limit of the cross support frame 1302 until the multiple threaded support blocks 1306 are attached to the inner wall of the prestressed pipe pile body 1, thus fixing the overall ultrasonic receiving mechanism 13. At the same time, the ultrasonic receiver 1303 is placed in the center position. Finally, the controller 1003 controls multiple ultrasonic transmitters 1002 to emit sound waves. The sound waves emitted by multiple ultrasonic transmitters 1002 are continuously reflected on the inner wall of the prestressed pipe pile body 1 and finally received by the ultrasonic receiver 1303. The integrity of the inner wall of the prestressed pipe pile body 1 can be determined by analyzing the received sound wave signals by computer.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A device for detecting the inner surface integrity of a prestressed concrete pipe pile, comprising a prestressed concrete pipe pile body (1), characterized in that: The prestressed pipe pile body (1) has a first support shell (2) and a second support shell (3) respectively installed at one end, and multiple connecting support pipes (4) are fixedly connected between the first support shell (2) and the second support shell (3). Both the first support housing (2) and the second support housing (3) are equipped with a movable support mechanism (5). The movable support mechanism (5) includes a triangular support limiting shell (501) installed inside the first support housing (2) or the second support housing (3). Multiple sliding square tubes (502) are slidably connected to the triangular support limiting shell (501). A volute block (503) is fixedly connected to one side of the bottom of each of the multiple sliding square tubes (502). A coiling spring (504) is installed inside each of the multiple sliding square tubes (502). A sliding shaft column (505) is fixedly connected to the other end of each of the multiple coiling springs (504). Rollers are installed on each of the multiple sliding shaft columns (505). A wheel (506) is provided. A rotation adjustment mechanism (6) is rotatably connected between the center of the first support housing (2) and the second support housing (3). The rotation adjustment mechanism (6) includes a support connecting rod (601) rotatably connected between the first support housing (2) and the second support housing (3). Two drive gears (602) are fixedly connected to the outer wall of the support connecting rod (601). A square hexagonal slot block (603) is fixedly connected to one end of the support connecting rod (601). An energy storage component (7) is provided between the first support housing (2) and the second support housing (3). A cleaning mechanism (8) is fixedly connected to the side of the first support housing (2) away from the second support housing (3). The outer walls of the first support shell (2) and the second support shell (3) are both fixedly connected with pipe fixing buckles (9). The pipe fixing buckles (9) are used to fix and connect rigid pipes (810) to supply air to the cleaning mechanism (8) for cleaning. The second support shell (3) has an ultrasonic transmitting mechanism (10) and a movable pin seat (11) fixedly connected at the center and bottom of the side away from the first support shell (2), respectively. An extension scale rod (12) is provided on the movable pin seat (11). An ultrasonic receiving mechanism (11) is installed at the other end of the prestressed pipe pile body (1). 3) The ultrasonic receiving mechanism (13) includes a fixed ring (1301), a cross support frame (1302) is fixedly connected to the inner wall of the fixed ring (1301), an ultrasonic receiver (1303) is installed on one side of the cross support frame (1302), and two sets of fixed ears (1304) are fixedly connected to the other side of the cross support frame (1302). Two bidirectional threaded rods (1305) are rotatably connected to the two sets of fixed ears (1304), and two threaded support blocks (1306) are rotatably connected to the two bidirectional threaded rods (1305).

2. The device for detecting the inner surface integrity of prestressed pipe piles according to claim 1, characterized in that, The first support housing (2) and the second support housing (3) are each provided with a plurality of through holes corresponding to the sliding square tube (502).

3. The device for detecting the inner surface integrity of prestressed pipe piles according to claim 1, characterized in that, The center of the first support housing (2), the second support housing (3) and the two triangular support limiting housings (501) are all provided with circular holes corresponding to the support connecting rod (601).

4. The device for detecting the inner surface integrity of prestressed pipe piles according to claim 1, characterized in that, The energy storage component (7) includes multiple sets of battery components (71), and each set of battery components (71) is provided with a connecting wire group (72).

5. The device for detecting the inner surface integrity of prestressed pipe piles according to claim 1, characterized in that, The cleaning mechanism (8) includes an air intake housing (801) and a drive motor (807) fixedly connected to one side of the first support housing (2). A first guide cone (802) is fixedly connected to the center of one side of the inner wall of the air intake housing (801). A rotary connector (803) is rotatably connected to the other side of the inner wall of the air intake housing (801). A second guide cone (804) is fixedly connected to one side of the inner wall of the rotary connector (803). A synchronous gear ring (805) is fixedly connected to the outer wall of the rotary connector (803). The device (803) has multiple output air pipes (806) fixedly connected to the side away from the air intake housing (801). The output end of the drive motor (807) is fixedly connected to a synchronous pulley (808). A synchronous belt (809) is installed between the synchronous gear ring (805) and the synchronous pulley (808). A connecting hard pipe (810) is fixedly connected to the outer wall of the air intake housing (801). A threaded connector (811) is fixedly connected to the other end of the connecting hard pipe (810). An extension pipe (812) is provided on the threaded connector (811).

6. The device for detecting the inner surface integrity of prestressed pipe piles according to claim 1, characterized in that, The ultrasonic transmitting mechanism (10) includes a mounting housing (1001) fixedly connected to one side of the second support housing (3). Multiple ultrasonic transmitters (1002) and controllers (1003) are installed inside the mounting housing (1001). A sealing cover plate (1004) is installed on the other side of the mounting housing (1001).

7. The device for detecting the inner surface integrity of prestressed pipe piles according to claim 1, characterized in that, The two bidirectional threaded rods (1305) are not on the same vertical plane, and multiple threaded support blocks (1306) are provided with through holes corresponding to the cross support frame (1302).

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