A pile foundation sounding pipe blockage removing device and a working method thereof

Abstract

The utility model relates to a pile foundation sounding pipe blockage removing device and working method thereof, and relates to the technical field of building construction, including frame, two folding drive parts are mirror image arranged in the length direction of frame, folding drive part is used to drive blockage removing device moves in sounding pipe, the both ends of frame are provided with removing part and control part respectively, removing part is suitable for removing the blockage attached to the wall of sounding pipe, control part is connected with folding drive part and removing part respectively, is suitable for gathering the operating parameter of removing part and folding drive part, controls removing part and folding drive part operation, the utility model can clean the inside when the blockage appears in sounding pipe, realizes the technical effect of guaranteeing the normal detection of pile foundation detection.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a device for clearing blockages in pile foundation acoustic logging pipes and its working method. Background Technology

[0002] In modern civil engineering construction, pile foundations, as a crucial component of the supporting structure, directly affect the safety and durability of the entire project. To ensure the quality of pile foundations, sonic logging tubes, as an efficient and non-destructive testing method, are widely used in monitoring, evaluating, and maintaining the quality of pile foundation construction.

[0003] Sonic logging tubes are pre-embedded inside the pile foundation. After the pile foundation construction is completed, a sonic logging instrument is lowered into the sonic logging tube to send sonic signals and receive the reflected sonic signals. By analyzing parameters such as the propagation speed and waveform of the sonic signals, it is possible to determine whether there are defects inside the pile foundation, such as cavities or cracks. This method has advantages such as high accuracy, high reliability, and high speed, enabling timely detection and resolution of problems inside the pile foundation, ensuring project quality and safety.

[0004] Although sonic logging tubes play an important role in pile foundation testing, they also face some problems in actual use. The most prominent problem is that when the ends of the sonic logging tubes are not properly sealed during construction, concrete and soil can easily enter and adhere to the inner wall, causing the sonic detector to get stuck when it is lowered into the sonic logging tube, thus preventing normal testing. Summary of the Invention

[0005] This invention provides a device for clearing blockages in a pile foundation sonic logging tube and its working method. When blockages occur inside the sonic logging tube, the tube can be cleaned to ensure normal pile foundation testing.

[0006] A device for clearing blockages in acoustic logging tubes for pile foundations, comprising:

[0007] The frame has two folding drive components arranged in a mirror image along its length, the folding drive components being used to drive the blockage removal device to move within the acoustic tube;

[0008] The two ends of the frame are respectively provided with a cleaning component and a control component;

[0009] The cleaning component is adapted to remove blockages adhering to the wall of the acoustic logging tube;

[0010] The control unit is communicatively connected to the folding drive unit and the clearing unit, respectively, and is adapted to collect the operating parameters of the clearing unit and the folding drive unit, and control the operation of the clearing unit and the folding drive unit.

[0011] Furthermore, the folding drive component includes a folding structure and a drive structure. The folding structure is disposed on the frame and can fold in accordance with the change of the inner diameter of the acoustic tube. The drive structure is disposed on the folding structure and is adapted to provide power to drive the folding structure to move inside the acoustic tube.

[0012] Furthermore, the folding structure includes a mounting plate fixedly mounted on the frame, a first drive motor mounted on the mounting plate, a lead screw rotatably mounted between the mounting plate and the end of the frame, the output shaft of the first drive motor being connected to the lead screw via a first gear set to drive the lead screw to rotate, a slider slidably mounted on the frame, the lead screw being threadedly connected to the slider, one end of a folding arm being hinged to the edge of the mounting plate, the other end of the folding arm having a pulley, one end of a support rod being hinged to the edge of the slider, the other end of the support rod being hinged to the folding arm.

[0013] Furthermore, the drive structure includes a second drive motor mounted on the folding arm. The output end of the second drive motor is connected to the axis of the pulley via a second gear set, which is suitable for driving the pulley to rotate. The signal input / output terminals of the control component are respectively communicatively connected to the signal input / output terminals of the first drive motor and the second drive motor.

[0014] Furthermore, the pulley includes a wheel body, and several support pillars are provided inside the wheel body.

[0015] Furthermore, the cleaning component includes a third drive motor fixedly connected to the frame. The output shaft end of the third drive motor is connected to a cutter head, and a sensor is provided on the cutter head to collect data on the blockage inside the acoustic tube. The signal input / output terminals of the control component are respectively communicatively connected to the signal input / output terminals of the third drive motor, and the signal input terminal of the control component is communicatively connected to the signal output terminal of the sensor.

[0016] Furthermore, the cutter head includes a disc body, which is fixedly connected to the output shaft end of the third drive motor, and a plurality of cutting edges that do not affect the data collected by the sensor are arranged alternately on the disc surface of the disc body.

[0017] Furthermore, the cutting edge is detachably mounted from the disc body, and the cutting edge has various specifications.

[0018] Furthermore, the control component includes a blockage parameter identification module, a rotation speed control module, a pipe wall resistance force calculation module, and a control module;

[0019] The blockage parameter identification module is adapted to identify the parameters of the blockage, including the location and extent of the blockage, based on the data collected by the sensor.

[0020] The speed control module is adapted to obtain the output power of the third drive motor based on the identified blockage parameters.

[0021] The pipe wall contact force calculation module is adapted to calculate the contact force between the folding drive component and the wall of the acoustic logging pipe based on the output power of the third drive motor and the parameters of the blockage.

[0022] The control module is adapted to calculate the number of rotations of the first drive motor based on the calculated resistance force; and to control the second drive motor to drive the blockage removal device to the blockage location based on the data collected by the sensor; and to control the operation of the third drive motor based on the output power of the third drive motor.

[0023] A method for operating a device for clearing blockages in a pile foundation acoustic logging tube includes the following steps:

[0024] Adjust the size of the cleaning component of the blockage removal device according to the inner diameter of the sonic logging tube to be cleared, so that it matches the inner diameter of the sonic logging tube;

[0025] After the pile foundation concrete has solidified, the blockage removal device is lowered into the sonic logging tube with the removal component facing down and the control component facing up.

[0026] Based on the identification of the blockage inside the acoustic tube, the folding drive component is unfolded, the blockage removal device is moved to the blockage and the removal component is activated to remove the blockage;

[0027] After cleaning is complete, it will automatically return to the inlet of the sonic logging tube.

[0028] The beneficial effects of the above-described technical solutions provided in the embodiments of the present invention include at least the following:

[0029] This invention incorporates a cleaning component. When the acoustic logging tube is blocked, the cleaning component can be driven by a folding drive component to the blockage to perform cleaning operations, thus clearing the interior of the acoustic logging tube and facilitating the detection of the pile foundation by the acoustic wave detector.

[0030] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0031] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0033] Figure 1 This is a schematic diagram showing the positional relationship between the blockage removal device and the acoustic logging tube disclosed in an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of a viewing angle obstruction removal device disclosed in an embodiment of the present invention;

[0035] Figure 3 for Figure 2 A partially enlarged schematic diagram of the blockage removal device;

[0036] Figure 4 This is a schematic diagram of the structure of a blockage removal device from another perspective, as disclosed in an embodiment of the present invention.

[0037] Figure 5 for Figure 4 A partial structural diagram of the blockage removal device;

[0038] Figure 6 This is a communication block diagram of the blockage removal device disclosed in an embodiment of the present invention;

[0039] Figure 7 This is a flowchart illustrating the working method of the pile foundation acoustic tube blockage removal device disclosed in an embodiment of the present invention.

[0040] Figure label:

[0041] 1. Acoustic logging tube; 2. Blockage removal device; 2a. Frame; 2b. Folding drive component; 2b1. Mounting plate; 2b2. Slider; 2b3. First drive motor; 2b4. Lead screw; 2b5. First gear set; 2b6. Folding arm; 2b7. Pulley; 2b71. Wheel body; 2b72. Support column; 2b8. Support rod; 2b9. Second drive motor; 2b10. Second gear set; 2c. Removal component; 2c1. Third drive motor; 2c2. Cutter disc; 2c21. Disc body; 2c22. Cutting edge; 2c3. Sensor; 2d. Control component; 2d1. Blockage parameter identification module; 2d2. Speed ​​control module; 2d3. Pipe wall resistance force calculation module; 2d4. Control module. Detailed Implementation

[0042] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0043] In existing technologies, acoustic logging tube testing is an important non-destructive testing method that utilizes the propagation characteristics of sound waves in a medium. Due to its non-destructive nature, high efficiency, and accuracy, this testing method has been widely used in modern engineering fields, playing an irreplaceable role, particularly in construction, bridge, tunnel, and pile foundation engineering.

[0044] Generally, before pouring concrete, tools such as plugs are used to seal the end of the sonic logging tube 1. After pouring, the plugs are removed before measurement. However, during construction, due to work errors, problems such as not setting plugs or losing the set plugs are common. If concrete or soil is accidentally dropped into the sonic logging tube 1, it is difficult to remove after hardening, causing the sonic detector to be unable to perform normal detection inside the sonic logging tube 1.

[0045] To address the problem of blockage in the sonic logging tube 1, this invention proposes a device for clearing blockages in pile foundation sonic logging tubes.

[0046] Figures 1-2 The present invention discloses the structure of a pile foundation sonic logging pipe blockage removal device, which includes a frame 2a. A removal component 2c and a control component 2d are respectively arranged at both ends of the frame 2a. The removal component 2c is adapted to remove the blockages attached to the wall of the sonic logging pipe 1. Two folding drive components 2b are arranged in a mirror image along the length of the frame 2a. The control component 2d is communicatively connected to the folding drive component 2b and the removal component 2c, respectively, and is adapted to collect the operating parameters of the removal component 2c and the folding drive component 2b, and control the operation of the removal component 2c and the folding drive component 2b. The folding drive component 2b can drive the blockage removal device 2 to move inside the sonic logging pipe 1, moving the blockage removal device 2 to the blockage point of the sonic logging pipe 1.

[0047] like Figures 1-6 As shown, the folding drive component 2b includes a folding structure and a drive structure, wherein:

[0048] The folding structure includes a mounting plate 2b1 fixedly mounted on a frame 2a, a first drive motor 2b3 mounted on the mounting plate 2b1, a lead screw 2b4 rotatably mounted between the mounting plate 2b1 and the end of the frame 2a, the output shaft of the first drive motor 2b3 being connected to the lead screw 2b4 via a first gear set 2b5 to drive the lead screw 2b4 to rotate, a slider 2b2 slidably mounted on the frame 2a, the lead screw 2b4 being threadedly connected to the slider 2b2, one end of a folding arm 2b6 being hinged to the edge of the mounting plate 2b1, the other end of the folding arm 2b6 having a pulley 2b7, one end of a support rod 2b8 being hinged to the edge of the slider 2b2, the other end of the support rod 2b8 being hinged to the folding arm 2b6;

[0049] The drive structure includes a second drive motor 2b9 mounted on the folding arm 2b6. The output end of the second drive motor 2b9 is connected to the shaft of the pulley 2b7 via a second gear set 2b10, which is suitable for driving the pulley 2b7 to rotate. The signal input / output terminals of the control component 2d are respectively connected to the signal input / output terminals of the first drive motor 2b3 and the second drive motor 2b9.

[0050] The working process of the folding drive component 2b includes the following two parts:

[0051] 1. Folding and retracting section: The first gear set 2b5 includes two meshing gears, one large and one small. The large gear is fixedly mounted on the lead screw 2b4 and can drive the lead screw 2b4 to rotate. The small gear is connected to the output shaft of the first drive motor 2b3 and can drive the large gear to rotate. After the blockage removal device 2 is suspended into the sonic logging tube 1, the control component 2d controls the first drive motor 2b3 to rotate. The first drive motor 2b3 drives the lead screw 2b4 to rotate through the first gear set 2b5, which consists of two meshing gears. The slider 2b2, which is threaded to the lead screw 2b4, moves along the length of the frame 2a. By driving the support rod 2b8, the folding arm 2b6 is opened / retracted, so that the pulley 2b7 abuts against the inner wall of the sonic logging tube 1.

[0052] 2. Drive section: The second gear set 2b10 includes two meshing gears for transmitting the power output from the output shaft of the second drive motor 2b9 to the pulley 2b7. The two gears are respectively connected to the output shaft of the second drive motor 2b9 and the shaft of the pulley 2b7. When it is necessary to drive the blockage removal device 2 to move to the blockage, the control component 2d controls the second drive motor 2b9 to rotate. The second drive motor 2b9 drives the pulley 2b7 to rotate through the second gear set 2b10, thereby achieving the effect of moving the blockage removal device 2 to the blockage.

[0053] It should be noted that, since there are two mirror images of the folding and retracting parts and the driving part, when controlling the folding and retracting parts and the driving part, the two folding driving parts 2b are controlled separately to make them expand / contract synchronously and move in the same direction.

[0054] like Figure 1 , 2 As shown in Figures 4 and 6, the cleaning component 2c includes a third drive motor 2c1 fixedly connected to the frame 2a. The output shaft end of the third drive motor 2c1 is connected to a cutter head 2c2. A sensor 2c3 is provided on the cutter head 2c2 to collect data on the blockage inside the wall of the acoustic tube 1. The signal input / output terminals of the control component 2d are respectively connected to the signal input / output terminals of the third drive motor 2c1, and the signal input terminal of the control component 2d is connected to the signal output terminal of the sensor 2c3.

[0055] The aforementioned sensor 2c3 is either a lidar sensor 2c3 or an ultrasonic sensor 2c3, and serves to obtain the location and range of the blockage. The cutter head 2c2 includes a disc body 2c21, which is fixedly connected to the output shaft end of the third drive motor 2c1. Several cutting edges 2c22 that do not affect the data acquisition by the sensor 2c3 are arranged alternately on the disc surface of the disc body 2c21.

[0056] In a preferred embodiment, the cutting edge 2c22 is detachably mounted from the disc body 2c21. The cutting edge 2c22 has various specifications, and the corresponding specification of the cutting edge 2c22 can be selected and installed according to the inner diameter of the acoustic tube 1, so as to better remove the attached substances that block the tube wall, while avoiding damage to the tube wall.

[0057] The cutting edge 2c22 has a certain gap with the inner wall of the acoustic tube 1 to avoid damage to the inner wall of the acoustic tube 1 during operation. The gap is generally set to 5mm to 10mm.

[0058] like Figures 1-6 As shown, the control unit 2d is equipped with a blockage parameter identification module 2d1, a speed control module 2d2, a pipe wall resistance force calculation module 2d3, and a control module 2d4;

[0059] The blockage parameter identification module 2d1 is adapted to identify the parameters of the blockage, including the location and extent of the blockage, based on the data collected by the sensor 2c3.

[0060] The speed control module 2d2 is adapted to obtain the output power of the third drive motor 2c1 based on the identified blockage parameters.

[0061] When the detected blockage area is large, the output power of the third drive motor 2c1 is increased; when the detected blockage area is small, the output power of the third drive motor 2c1 is decreased. The blockage area is defined as the ratio of the area of ​​the blockage occupying the cross-section of the acoustic tube 1 to the area of ​​the cross-section of the acoustic tube 1. A ratio higher than 1 / 2 is defined as large, and a ratio lower than 1 / 2 is defined as small. The output power can be set to a stepped preset value. When the ratio is higher than 1 / 2, full power output is used, and when the ratio is lower than 1 / 2, half power output is used.

[0062] The pipe wall contact force calculation module 2d3 is suitable for calculating the contact force between the folding drive component 2b and the wall of the acoustic pipe 1 based on the output power of the third drive motor 2c1 and the parameters of the blockage.

[0063] In the above calculation process, based on the range of the blockage and the output power, combined with the parameters of the cutter head 2c2, the reverse resistance generated by the blockage on the blockage removal device 2 during the cutting process is calculated. Based on the reverse resistance, the contact force between the pulley 2b7 and the inner wall of the acoustic tube 1 is calculated to avoid the removal component 2c slipping during the cutting process.

[0064] To further prevent the removal component 2c from slipping during the cutting of blockages, a support column 2b72 is also provided inside the wheel body 2b71 of the pulley 2b7. During the opening of the folding drive component 2b, the pulley 2b7 can be squeezed to deform it. During this process, due to the presence of the support column 2b72, the pressure between the support column 2b72 and the inner wall of the acoustic tube 1 increases during the squeezing process, which enhances the direct friction between the pulley 2b7 and the inner wall of the acoustic tube 1. On the other hand, it also enhances the pulley 2b7's ability to withstand lateral loads, enhances the stability of the blockage removal device 2, and prevents the removal component 2c from slipping during the cutting of blockages.

[0065] The control module 2d4 is adapted to calculate the number of rotations of the first drive motor 2b3 based on the calculated resistance force; and to control the second drive motor 2b9 to drive the blockage removal device 2 to the blockage location based on the data collected by the sensor 2c3; and to control the third drive motor 2c1 to operate based on the output power of the third drive motor 2c1.

[0066] During the control process described above, the control module 2d4 can collect parameters of the first drive motor 2b3, the second drive motor 2b9, and the third drive motor 2c1 to determine the current status of the first drive motor 2b3, the second drive motor 2b9, and the third drive motor 2c1. At the same time, based on the parameters collected by the sensor 2c3, the control module 2d4 controls the first drive motor 2b3, the second drive motor 2b9, and the third drive motor 2c1 respectively.

[0067] like Figures 1-7As shown, a method for using a device to remove blockages from a pile foundation acoustic logging tube includes the following steps:

[0068] S1, adjust the size of the cleaning component 2c of the blockage removal device 2 according to the inner diameter of the sonic logging tube 1 to match the inner diameter of the sonic logging tube 1;

[0069] S2, After the pile foundation concrete has solidified, the blockage removal device 2 is hoisted into the sonic logging tube 1 with the removal component 2c facing down and the control component 2d facing up;

[0070] S3, based on the identification of the blockage in the acoustic tube 1, control the folding drive component 2b to unfold, drive the blockage removal device 2 to move to the blockage and start the removal component 2c to remove the blockage;

[0071] S4, after cleaning is complete, automatically returns to the inlet of the sonic logging tube 1.

[0072] In this embodiment of the invention, by setting up a clearing component 2c, when the sonic logging tube 1 is blocked, the clearing component 2c can be driven by the folding drive component 2b to the blockage to perform a clearing operation, thereby opening up the inside of the sonic logging tube 1 and facilitating the detection operation of the sonic wave detector on the pile foundation.

[0073] It should be noted that the specific models and specifications of the first drive motor 2b3, the second drive motor 2b9, the third drive motor 2c1, the sensor 2c3, and the control component 2d need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0074] The power supply and operating principles of the first drive motor 2b3, the second drive motor 2b9, the third drive motor 2c1, the sensor 2c3, and the control component 2d are clear to those skilled in the art and will not be described in detail here.

[0075] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0076] In the detailed description above, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, wherein each claim stands alone as a preferred embodiment of the invention.

[0077] Those skilled in the art will also understand that the various illustrative logic blocks, modules, circuits, and algorithm steps described in conjunction with the embodiments herein can be implemented as electronic hardware, computer software, or a combination thereof. To clearly illustrate the interchangeability between hardware and software, the various illustrative components, blocks, modules, circuits, and steps described above are generally described in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art can implement the described functionality in alternative ways for each specific application; however, such implementation decisions should not be construed as departing from the scope of this disclosure.

[0078] The steps of the methods or algorithms described in conjunction with the embodiments herein can be directly embodied in hardware, software modules executed by a processor, or a combination thereof. The software modules can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium well known in the art. An exemplary storage medium is connected to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. The ASIC can reside in a user terminal. Alternatively, the processor and storage medium can exist as discrete components in the user terminal.

[0079] For software implementation, the techniques described in this application can be implemented using modules (e.g., procedures, functions, etc.) that perform the functions described in this application. This software code can be stored in memory units and executed by a processor. The memory units can be implemented within the processor or outside the processor; in the latter case, they are communicatively coupled to the processor via various means, as is well known in the art.

[0080] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that the various embodiments can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

Claims

1. A device for clearing blockages in acoustic logging tubes for pile foundations, characterized in that, include: The frame (2a) has two folding drive components (2b) arranged in a mirror image along its length. The folding drive components (2b) are used to drive the blockage removal device (2) to move inside the acoustic tube (1). The folding drive component (2b) includes a folding structure and a drive structure. The folding structure is mounted on the frame (2a) and can fold according to the change of the inner diameter of the acoustic tube (1). The drive structure is mounted on the folding structure and is suitable for providing power to drive the folding structure to move inside the acoustic tube (1). The drive structure includes a second drive motor (2b9) mounted on the folding arm (2b6) and is suitable for driving the pulley (2b7) to rotate. The pulley (2b7) includes a wheel body (2b71) and several support columns (2b72) are provided inside the wheel body (2b71). The frame (2a) is provided with a cleaning component (2c) and a control component (2d) at both ends respectively; the cleaning component (2c) includes a third drive motor (2c1) fixedly connected to the frame (2a), and a cutter head (2c2) is connected to the output shaft end of the third drive motor (2c1). A sensor (2c3) is provided on the cutter head (2c2) to collect data on the blockage inside the wall of the acoustic tube (1); The cleaning component (2c) is suitable for removing blockages adhering to the wall of the acoustic tube (1); The control unit (2d) includes a blockage parameter identification module (2d1), a speed control module (2d2), a pipe wall resistance force calculation module (2d3), and a control module (2d4). The blockage parameter identification module (2d1) is adapted to identify the parameters of the blockage, including its location and extent, based on data collected by the sensor (2c3). The speed control module (2d2) is adapted to obtain the output power of the third drive motor (2c1) based on the identified blockage parameters. The pipe wall resistance force calculation module (2d3) is adapted to… Based on the output power of the third drive motor (2c1) and the parameters of the blockage, the contact force between the folding drive component (2b) and the wall of the acoustic tube (1) is calculated; the control module (2d4) is adapted to calculate the number of rotations of the first drive motor (2b3) based on the calculated contact force; and to control the second drive motor (2b9) to drive the blockage removal device (2) to the blockage location based on the data collected by the sensor (2c3); and to control the operation of the third drive motor (2c1) based on the output power of the third drive motor (2c1); During the process of the first drive motor (2b3) driving the folding drive component (2b) to open, the wheel body (2b71) of the squeeze pulley (2b7) is deformed, which increases the pressure between the support column (2b72) and the inner wall of the acoustic tube (1) to enhance the direct friction between the pulley (2b7) and the inner wall of the acoustic tube (1).

2. The device for clearing blockages in a pile foundation acoustic logging tube as described in claim 1, characterized in that, The folding structure includes a mounting plate (2b1) fixedly mounted on a frame (2a), a first drive motor (2b3) mounted on the mounting plate (2b1), a lead screw (2b4) rotatably mounted between the mounting plate (2b1) and the end of the frame (2a), the output shaft of the first drive motor (2b3) being connected to the lead screw (2b4) via a first gear set (2b5) to drive the lead screw (2b4) to rotate, a slider (2b2) ​​slidably mounted on the frame (2a), the lead screw (2b4) being threadedly connected to the slider (2b2), one end of a folding arm (2b6) hinged to the edge of the mounting plate (2b1), the other end of the folding arm (2b6) having a pulley (2b7), one end of a support rod (2b8) hinged to the edge of the slider (2b2), the other end of the support rod (2b8) being hinged to the folding arm (2b6).

3. The device for clearing blockages in a pile foundation acoustic logging tube as described in claim 2, characterized in that, The output end of the second drive motor (2b9) is connected to the shaft of the pulley (2b7) through the second gear set (2b10). The signal input / output end of the control unit (2d) is communicatively connected to the signal input / output ends of the first drive motor (2b3) and the second drive motor (2b9).

4. The device for clearing blockages in a pile foundation acoustic logging tube as described in claim 3, characterized in that, The signal input / output terminals of the control unit (2d) are connected to the signal input / output terminals of the third drive motor (2c1) for communication, and the signal input terminal of the control unit (2d) is connected to the signal output terminal of the sensor (2c3) for communication.

5. The device for clearing blockages in a pile foundation acoustic logging tube as described in claim 4, characterized in that, The cutter head (2c2) includes a disc body (2c21), which is fixedly connected to the output shaft end of the third drive motor (2c1). Several cutting edges (2c22) that do not affect the data acquisition of the sensor (2c3) are arranged alternately on the disc surface of the disc body (2c21).

6. The device for clearing blockages in a pile foundation acoustic logging tube as described in claim 5, characterized in that, The cutting edge (2c22) and the disc body (2c21) are detachably mounted, and the cutting edge (2c22) is available in various sizes.

7. A method for operating a device for clearing blockages in a pile foundation acoustic logging tube, applied to the device described in claim 1, characterized in that, Includes the following steps: According to the inner diameter of the acoustic tube (1) to be cleared, adjust the size of the clearing component (2c) of the blockage clearing device (2) to match the inner diameter of the acoustic tube (1); After the pile foundation concrete has solidified, the blockage removal device (2) is hoisted into the sonic logging tube (1) with the removal component (2c) facing down and the control component (2d) facing up. Based on the identification of the blockage in the acoustic tube (1), the folding drive component (2b) is unfolded, the blockage removal device (2) is driven to move to the blockage and the removal component (2c) is activated to remove the blockage; After cleaning is completed, it will automatically return to the inlet of the sonic logging tube (1).

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