A pile foundation ultrasonic testing device

Abstract

This application belongs to the technical field of testing devices and discloses an ultrasonic testing device for pile foundations. The device includes a sleeve and a controller mounted on the top of the sleeve. An annular plate is mounted on the sleeve, and a telescopic tube is fixed between the annular plate and the sleeve. A testing component is mounted on the annular plate, comprising an ultrasonic generator and an ultrasonic receiver, both of which are located within the annular plate. Multiple clamping blocks are slidably disposed within the sleeve, and a displacement mechanism is provided on the sleeve. In this application, the sleeve and annular plate are fitted onto the pile foundation to be tested, with the inner top wall of the sleeve fitting against the top of the pile foundation. The displacement mechanism then drives the multiple clamping blocks to move towards the axis of the sleeve until they are tightly against the sidewall of the pile foundation. At this point, the pile foundation can be tested using the testing component. The device's stability is ensured without manual support during the testing process, making it convenient to use and reducing testing errors caused by vibration.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to an ultrasonic testing device for pile foundations. Background Technology

[0002] Pile foundations are frequently used in building construction. After the pile foundation is constructed and its strength is fixed, it is necessary to test the strength of the pile foundation to ensure that it is qualified and can support the weight of the building. Since geological conditions have a direct impact on the pile diameter, different pile diameters are used for different geological conditions.

[0003] Chinese utility model patent CN212964767U discloses an ultrasonic transmission detection device for pile foundation integrity, comprising a pile foundation sleeve, travel guide rails, an electric travel slider, a detection ring frame, a detection ring groove, an electric slider, an ultrasonic generator, an ultrasonic receiver, and a microprocessor center. Several travel guide rails are vertically arranged inside the pile foundation sleeve. A detection ring frame is mounted on the travel guide rails via an electric travel slider. Several detection ring grooves coaxial with the pile foundation to be inspected are provided on the detection ring frame. Several electric sliders are arranged within the detection ring grooves. An ultrasonic generator and an ultrasonic receiver are mounted on the electric sliders. The microprocessor center is located at the top of the pile foundation sleeve and is connected to the electric travel slider, detection ring frame, detection ring groove, electric slider, ultrasonic generator, and ultrasonic receiver respectively.

[0004] Because the existing technology does not have a structure to limit the sleeve, it cannot ensure the overall stability of the device when testing smaller pile foundations. On the one hand, it requires staff to support it, making it inconvenient to use. On the other hand, if there is shaking during the test, it will reduce the accuracy of the device. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an ultrasonic testing device for pile foundations.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pile foundation ultrasonic testing device, including a sleeve and a controller disposed on the top of the sleeve, an annular plate disposed on the sleeve, a telescopic tube fixed between the annular plate and the sleeve, a testing component disposed on the annular plate, the testing component including an ultrasonic generator and an ultrasonic receiver, the ultrasonic generator and the ultrasonic receiver being disposed inside the annular plate, a plurality of clamping blocks evenly distributed about the sleeve axis are slidably disposed inside the sleeve, and a displacement mechanism is disposed on the sleeve for driving the plurality of clamping blocks to move closer to or away from the sleeve axis.

[0007] By adopting the above technical solution, a sleeve and annular plate are fitted onto the pile foundation to be tested, with the inner top wall of the sleeve fitting against the top of the pile foundation. Then, a displacement mechanism drives multiple clamping blocks to move towards the axis of the sleeve until the clamping blocks are tightly against the sidewall of the pile foundation. At this point, the pile foundation can be tested using the testing components. The stability of the device is ensured without manual support during the testing process, making it convenient to use and reducing testing errors caused by vibration. Furthermore, by adjusting the position of the multiple clamping blocks, pile foundations of various diameters can be clamped, expanding the applicability of the device.

[0008] Furthermore, the sleeve has a cavity, and the inner top wall of the sleeve has a sliding through hole communicating with the cavity. The displacement mechanism includes a connecting assembly, which includes a sliding block slidably connected in the sliding through hole, a guide plate fixed in the sliding through hole, and a connecting column rotatably mounted on the sliding block. The sliding block is fixed to the clamping block, and the guide plate passes through the sliding block and is slidably engaged. The displacement mechanism also includes a displacement component for driving multiple connecting columns to move toward or away from the sleeve axis.

[0009] By adopting the above technical solution, multiple connecting columns are driven to move toward or away from the sleeve axis by the displacement component, so that the sliding block connected to the connecting column and the clamping block connected to the sliding block move, thereby achieving the purpose of clamping or loosening the pile foundation.

[0010] Furthermore, the displacement assembly includes a rotating column rotatably mounted in the sleeve cavity and coaxially arranged with the sleeve, and an adjusting plate fixedly sleeved on the rotating column. The adjusting plate is provided with an adjusting through hole that is eccentrically arranged with the adjusting plate and slidably engaged with the connecting column. The number of adjusting through holes, the number of sliding through holes, the number of connecting components, and the number of clamping blocks are all equal and their positions correspond one-to-one. The displacement mechanism also includes a rotating component for driving the rotating column to rotate.

[0011] By adopting the above technical solution, the rotating component drives the rotating column to rotate, which in turn causes the adjusting plate connected to the rotating column to rotate. Since the adjusting through hole and the connecting column are in sliding fit and the adjusting through hole and the rotating column are eccentrically set, the purpose of multiple connecting columns moving towards or away from the sleeve axis can be achieved.

[0012] Furthermore, the rotating assembly includes a worm gear fixedly sleeved on the rotating column, a worm shaft passing through the inner wall of the sleeve cavity and rotatably connected, and an adjusting knob fixed on the worm shaft, wherein the worm shaft meshes with the worm gear.

[0013] By adopting the above technical solution, rotating the adjustment knob causes the worm connected to the adjustment knob, the worm wheel connected to the worm, and the rotating column connected to the worm wheel to all rotate. Due to the self-locking effect between the worm wheel and the worm, the clamping block remains stationary after moving to the target position, thus preventing the clamping block from loosening during the testing process.

[0014] Furthermore, the sleeve and the annular plate are jointly provided with an adjustment assembly. The adjustment assembly includes two internally threaded cylinders that pass through the sleeve and are rotatably connected, a driven gear fixedly sleeved on the internally threaded cylinders, a rotary knob fixed on one of the internally threaded cylinders, a screw fixed on the annular plate and threadedly connected to the internally threaded cylinders, and a driving gear rotatably sleeved on the sleeve and meshing with the driven gear. The number of internally threaded cylinders, the number of driven gears, and the number of screws are all equal and their positions correspond one-to-one.

[0015] By adopting the above technical solution, rotating the rotary knob causes both the internal threaded cylinder connected to the rotary knob and the driven gear connected to the internal threaded cylinder to rotate. Since the screw connected to the annular plate and the internal threaded cylinder are threadedly connected, the screw and the annular plate rise or fall, thereby changing the height of the detection component, which allows for the detection of different heights of the pile foundation.

[0016] Furthermore, anti-slip strips are fixed on the side walls of both the rotary knob and the adjustment knob.

[0017] By adopting the above technical solution, the probability of slippage when rotating the knob or adjustment knob is reduced.

[0018] Furthermore, a wavy groove is provided on the side wall of the clamping block near the axis of the sleeve.

[0019] By adopting the above technical solution, the frictional force between the clamping block and the pile foundation is improved.

[0020] In summary, the present invention has the following beneficial effects: In this application, by setting up clamping blocks and displacement mechanisms, the device can ensure its stability without manual support during the detection process, making it more convenient to use and reducing detection errors caused by shaking. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram illustrating the internal structure of the telescopic tube in an embodiment of this utility model; Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the telescopic tube and the sleeve; Figure 4 This is a schematic diagram illustrating the connection structure between the sliding block and the guide plate in an embodiment of this utility model; Figure 5 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the connecting column and the adjusting plate.

[0022] In the diagram: 1. Sleeve; 2. Controller; 3. Annular plate; 4. Detection component; 5. Clamping block; 6. Displacement mechanism; 61. Connecting component; 611. Sliding block; 612. Guide plate; 613. Connecting column; 62. Displacement component; 621. Rotating column; 622. Adjusting plate; 63. Rotating component; 631. Worm gear; 632. Worm; 633. Adjusting knob; 7. Sliding through hole; 8. Adjusting through hole; 9. Telescopic tube; 10. Adjusting component; 101. Internal threaded cylinder; 102. Driven gear; 103. Rotating knob; 104. Screw; 105. Driving gear. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] like Figure 1-5 As shown in the figure, this application discloses an ultrasonic testing device for pile foundations, including a sleeve 1, a controller 2, a testing component 4, a displacement mechanism 6, and an adjustment component 10. The controller 2 is disposed on the top of the sleeve 1. A telescopic tube 9 is fixed to the lower end of the sleeve 1, and an annular plate 3 is fixed to the lower end of the telescopic tube 9. An annular electric slide rail is disposed inside the annular plate 3. The testing component 4 includes an ultrasonic generator and an ultrasonic receiver, both of which are disposed on the annular electric slide rail inside the annular plate 3. A plurality of clamping blocks 5 are slidably disposed inside the sleeve 1, evenly distributed about the axis of the sleeve 1. The sleeve 1 has a cavity, and a sliding through hole 7 communicating with the cavity is opened on the inner top wall of the sleeve 1. The sleeve 1 and the annular plate 3 are placed on the pile foundation to be tested, and the inner top wall of the sleeve 1 is made to fit against the top of the pile foundation. Then, the displacement mechanism 6 drives multiple clamping blocks 5 to move towards the axis of the sleeve 1 until the multiple clamping blocks 5 are tightly fitted against the side wall of the pile foundation. At this point, the pile foundation can be tested by the testing component 4. The stability of the device can be ensured without manual support during the testing process, making it convenient to use and reducing testing errors caused by vibration. In addition, by adjusting the position of the multiple clamping blocks 5, pile foundations of various diameters can be clamped, expanding the applicability of the device.

[0025] A displacement mechanism 6 is mounted on the sleeve 1. The displacement mechanism 6 drives multiple clamping blocks 5 to move closer to or away from the axis of the sleeve 1. The displacement mechanism 6 includes a connecting assembly 61, a displacement assembly 62, and a rotating assembly 63. The connecting assembly 61 includes a sliding block 611, a guide plate 612, and a connecting column 613. The sliding block 611 is slidably connected within the sliding through hole 7 and is fixed to the clamping block 5. The guide plate 612 is fixed within the sliding through hole 7, passes through the sliding block 611, and is slidably engaged. The connecting column 613 is rotatably mounted on the sliding block 611. The displacement assembly 62 drives the multiple connecting columns 613 to move closer to or away from the axis of the sleeve 1, causing both the sliding block 611 connected to the connecting column 613 and the clamping block 5 connected to the sliding block 611 to move, thereby achieving the purpose of clamping or loosening the pile foundation.

[0026] The displacement assembly 62 is used to drive multiple connecting columns 613 to move towards or away from the axis of the sleeve 1. The displacement assembly 62 includes a rotating column 621 and an adjusting plate 622. The rotating column 621 is rotatably installed in the cavity of the sleeve 1 and is coaxially arranged with the sleeve 1. The adjusting plate 622 is fixedly sleeved on the rotating column 621. An adjusting through hole 8 is provided through the adjusting plate 622, which is eccentrically arranged with the adjusting plate 622 and slides with the connecting column 613. The number of adjusting through holes 8, the number of sliding through holes 7, the number of sets of connecting assemblies 61, and the number of clamping blocks 5 are all equal and their positions correspond one-to-one. By driving the rotating column 621 to rotate through the rotating assembly 63, the adjusting plate 622 connected to the rotating column 621 rotates. Since the adjusting through hole 8 slides with the connecting column 613 and is eccentrically arranged with the rotating column 621, the purpose of moving multiple connecting columns 613 towards or away from the axis of the sleeve 1 can be achieved.

[0027] The rotating assembly 63 drives the rotating column 621 to rotate. The rotating assembly 63 includes a worm gear 631, a worm 632, and an adjusting knob 633. The worm gear 631 is fixedly sleeved on the rotating column 621, and the worm 632 passes through the inner wall of the sleeve 1 cavity and is rotatably connected. The worm 632 meshes with the worm gear 631, and the adjusting knob 633 is fixed to the worm 632. Rotating the adjusting knob 633 causes the worm 632 connected to the adjusting knob 633, the worm gear 631 connected to the worm 632, and the rotating column 621 connected to the worm gear 631 to all rotate. Due to the self-locking effect between the worm gear 631 and the worm 632, the clamping block 5 remains stationary after moving to the target position, preventing the clamping block from loosening during the detection process.

[0028] An adjusting assembly 10 is jointly mounted on the sleeve 1 and the annular plate 3. The adjusting assembly 10 includes an internally threaded cylinder 101, a driven gear 102, a rotary knob 103, a screw 104, and a driving gear 105. Two internally threaded cylinders 101 are rotatably connected to the sleeve 1. The driven gear 102 is fixedly mounted on one of the internally threaded cylinders 101, and the rotary knob 103 is fixed to one of the internally threaded cylinders 101. The screw 104 is fixed to the annular plate 3 and threadedly connected to the internally threaded cylinder 101. The driving gear 105 is rotatably mounted on the sleeve 1 and meshes with the driven gear 102. The number of internally threaded cylinders 101, the number of driven gears 102, and the number of screws 104 are all equal and their positions correspond one-to-one. Rotating the rotary knob 103 causes the internal threaded cylinder 101 connected to the rotary knob 103 and the driven gear 102 connected to the internal threaded cylinder 101 to rotate. Since the screw 104 connected to the annular plate 3 and the internal threaded cylinder 101 are threadedly connected, the screw 104 and the annular plate 3 rise or fall, thereby changing the height of the detection component 4, so that different heights of the pile foundation can be detected.

[0029] Anti-slip strips are fixed to the side walls of both the rotary knob 103 and the adjustment knob 633. This reduces the probability of slippage when rotating the rotary knob 103 or the adjustment knob 633.

[0030] A wavy groove is provided on the side wall of the clamping block 5 near the axis of the sleeve 1. This increases the friction between the clamping block 5 and the pile foundation.

[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pile foundation ultrasonic testing device, comprising a sleeve (1) and a controller (2) arranged at the top of the sleeve (1), characterized in that: An annular plate (3) is provided on the sleeve (1), and a telescopic tube (9) is fixed between the annular plate (3) and the sleeve (1). A detection component (4) is provided on the annular plate (3). The detection component (4) includes an ultrasonic generator and an ultrasonic receiver. The ultrasonic generator and the ultrasonic receiver are both located inside the annular plate (3). Multiple clamping blocks (5) are slidably arranged inside the sleeve (1) and are evenly distributed about the axis of the sleeve (1). A displacement mechanism (6) is provided on the sleeve (1) to drive the multiple clamping blocks (5) to move closer to or away from the axis of the sleeve (1).

2. The pile foundation ultrasonic testing device according to claim 1, characterized in that: The sleeve (1) has a cavity inside, and the inner top wall of the sleeve (1) has a sliding through hole (7) communicating with the cavity. The displacement mechanism (6) includes a connecting component (61). The connecting component (61) includes a sliding block (611) slidably connected in the sliding through hole (7), a guide plate (612) fixed in the sliding through hole (7), and a connecting column (613) rotatably mounted on the sliding block (611). The sliding block (611) is fixed to the clamping block (5). The guide plate (612) passes through the sliding block (611) and slides in cooperation. The displacement mechanism (6) also includes a displacement component (62) for driving multiple connecting columns (613) to move toward or away from the axis of the sleeve (1).

3. A device for ultrasonic testing of a pile foundation according to claim 2, characterized in that The displacement assembly (62) includes a rotating column (621) rotatably mounted in the cavity of the sleeve (1) and coaxially arranged with the sleeve (1), and an adjusting plate (622) fixedly sleeved on the rotating column (621). The adjusting plate (622) is provided with an adjusting through hole (8) that is eccentrically arranged with the adjusting plate (622) and slidably engaged with the connecting column (613). The number of adjusting through holes (8), the number of sliding through holes (7), the number of connecting assemblies (61) and the number of clamping blocks (5) are all equal and their positions correspond one-to-one. The displacement mechanism (6) also includes a rotating assembly (63) for driving the rotating column (621) to rotate.

4. The pile ultrasonic testing device according to claim 3, characterized in that: The rotating assembly (63) includes a worm wheel (631) fixedly sleeved on the rotating column (621), a worm (632) that passes through the inner wall of the sleeve (1) cavity and is rotatably connected, and an adjusting knob (633) fixed on the worm (632). The worm (632) meshes with the worm wheel (631).

5. A device for ultrasonic testing of a pile foundation according to claim 4, characterized in that An adjustment assembly (10) is provided on both the sleeve (1) and the annular plate (3). The adjustment assembly (10) includes two internally threaded cylinders (101) that are rotatably connected to the sleeve (1), a driven gear (102) fixedly sleeved on the internally threaded cylinder (101), a rotary knob (103) fixed on one of the internally threaded cylinders (101), a screw (104) fixed on the annular plate (3) and threadedly connected to the internally threaded cylinder (101), and a driving gear (105) rotatably sleeved on the sleeve (1) and meshing with the driven gear (102). The number of internally threaded cylinders (101), the number of driven gears (102), and the number of screws (104) are all equal and their positions correspond one-to-one.

6. A device for ultrasonic testing of a pile foundation according to claim 5, characterized in that The rotating knob (103) and the side wall of the adjusting knob (633) are fixed with anti-skid strips.

7. The pile ultrasonic testing device according to claim 1, characterized in that: The clamping block (5) is provided with a wave-shaped groove on the side wall close to the axis of the sleeve (1).

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