A device for cleaning holes in acoustic logging pipes

Abstract

This application relates to a device for cleaning a sonic logging pipe, which falls within the technical field of pile foundation testing equipment. The device includes a support, a cleaning pipe, a pipe-expanding cone, a cutting head, and a first driving component. The cleaning pipe is slidably mounted on the support, with one end connected to the pipe-expanding cone. A through groove is formed on the pipe-expanding cone for mounting the cutting head, which is connected to the groove wall. The cleaning pipe has a double-walled structure, and multiple cleaning nozzles are provided on the outer wall of the cleaning pipe. The first driving component is connected to the support and is used to drive the cleaning pipe to rotate. This application has the effect of repositioning the sonic logging pipe wall and improving the efficiency of removing blockages from the sonic logging pipe.

Description

Technical Field

[0001] This application relates to the technical field of pile foundation testing equipment, and in particular to a device for cleaning holes in sonic logging tubes. Background Technology

[0002] In road and bridge engineering, during the construction of cast-in-place piles, sonic logging tubes need to be pre-embedded within the piles according to design specifications. For piles with a diameter of 0.8m or less, two sonic logging tubes are required, and these two tubes must be fixed in a straight line within the reinforcing cage. For piles with a diameter of 0.8m-2.0m, three logging tubes are required, and these three tubes must be fixed in an isosceles triangle shape within the reinforcing cage. For piles with a diameter of 2.0m or more, four logging tubes are required, and these four logging tubes must be fixed in a square shape within the reinforcing cage. The main function of the sonic logging tubes is to measure the physical parameters at each monitoring point using an ultrasonic testing instrument to determine whether the pile foundation construction conforms to the design specifications.

[0003] In practice, sonic logging pipes often become blocked, mainly due to inadequate sealing of the pipe joints or openings, allowing mud or even cement slurry to leak in during construction and causing blockages. This can also be caused by small stones or other debris falling in during pile head demolition, or by misalignment, deformation of the pipe joints, or deformation of the pipe wall due to twisting or collision with the reinforcing cage during installation and grouting.

[0004] A pile foundation sonic logging pipe dredging and cleaning device includes a high-pressure hose. One end of the high-pressure hose is connected to a water source via a water pump, and the other end extends into the sonic logging pipe and is fixedly fitted with an outer steel pipe. A lower limit ring is fixedly installed inside the outer steel pipe at the end away from the high-pressure hose, and an inner steel pipe is installed at the end away from the high-pressure hose. The inner steel pipe passes through the outer steel pipe and is fitted with a clearance fit between the inner and outer steel pipes. An upper limit ring is fixedly fitted on the outer side of the pipe body at the end near the outer steel pipe, and a dredging drill bit is fixedly installed at the end away from the outer steel pipe. The dredging drill bit is equipped with a nozzle that penetrates its inner cavity and its outer space.

[0005] Regarding the aforementioned technologies, the inventors discovered that when cleaning the inside of a sonic logging pipe using a dredging drill bit, if the sonic logging pipe is deformed, the drill bit may damage the inner wall of the sonic logging pipe, or even cause the drill bit to get stuck between the sonic logging pipe and the sonic logging pipe. Furthermore, because the sonic logging pipe is relatively long, after the blockage inside the sonic logging pipe is broken, some larger blockages may be impacted to the bottom of the sonic logging pipe by the high-pressure water flow, making it difficult for them to be discharged with the water flow. This would affect the depth of the ultrasonic detection probe in the sonic logging pipe. Summary of the Invention

[0006] In order to improve the problems of the inability to clean the inner wall deformation of the sonic logging pipe and the difficulty in removing the blockages that have settled to the bottom, this application provides a sonic logging pipe cleaning device.

[0007] The sonic logging pipe cleaning device provided in this application adopts the following technical solution:

[0008] A device for cleaning a sonic logging pipe includes a support, a cleaning pipe, a pipe expanding cone, a cutting head, and a first driving component. The cleaning pipe is slidably mounted on the support, and one end of the cleaning pipe is connected to the pipe expanding cone. The pipe expanding cone has a through groove for mounting the cutting head, and the cutting head is connected to the groove wall. The cleaning pipe has a double-walled structure, and multiple cleaning nozzles are provided on the outer wall of the cleaning pipe. The first driving component is connected to the support and is used to drive the cleaning pipe to rotate.

[0009] By adopting the above technical solution, the cleaning tube extends into the sonic logging tube. The first driving component drives the cleaning tube to rotate, which in turn drives the expanding cone to rotate. The cutter head inside the expanding cone breaks up the blockage inside the sonic logging tube. The cleaning nozzle sprays high-pressure water jets onto the inner wall of the sonic logging tube for flushing. A fluid channel is formed between the outer circumference of the cleaning tube and the inner wall of the sonic logging tube. Compared to the high-pressure water jet directly impacting the bottom of the sonic logging tube, this application improves the efficiency of blockage removal by spraying high-pressure water jets toward the inner wall of the sonic logging tube, allowing the broken blockage to be discharged from the sonic logging tube along with the water flow through the cleaning tube. When the expanding cone comes into contact with the deformed sonic logging tube wall, the rotating expanding cone squeezes the deformed sonic logging tube wall, causing the sonic logging tube wall to return to its original position. This makes it less likely for the sonic logging tube wall to be damaged, thus facilitating the insertion of the ultrasonic testing probe into the sonic logging tube.

[0010] Optionally, a support rod is fixedly connected to the bracket, a support block is slidably connected to the support rod, the first driving member is fixedly connected to the support block, and the bracket is provided with a driving assembly for driving the support block to slide.

[0011] By adopting the above technical solution, the drive component drives the support block to slide along the length of the support rod. The support rod limits the sliding trajectory of the support block, and the support block drives the first drive component to move, thereby improving the stability of the first drive component in pushing the cleaning tube into the acoustic tube.

[0012] Optionally, the inner wall of the cleaning tube is provided with a plurality of return nozzles, the return nozzles being disposed toward the end of the cleaning tube away from the cutter head, and the plurality of return nozzles being evenly disposed along the inner circumferential surface of the cleaning tube.

[0013] By adopting the above technical solution, the return nozzle sprays water towards the cleaning pipe, which improves the fluidity of the water in the cleaning pipe. This causes the water in the cleaning pipe to flow from the end of the cleaning pipe near the cutter head to the end away from the cutter head. As a result, the water flow between the outer wall of the cleaning pipe and the sonic logging pipe passes through the cutter head and carries the broken blockage into the cleaning pipe, and then out of the sonic logging pipe.

[0014] Optionally, a filter screen is fixedly connected to the wall of the through groove, and the filter screen and the cutter head are arranged opposite to each other in the through groove along the length direction of the through groove.

[0015] By adopting the above technical solution, the cutter head breaks up the blockages inside the sonic logging tube, and the cleaning nozzle sprays high-pressure water onto the inner wall of the sonic logging tube. The water flow carries the broken blockages into the cleaning tube, and the filter screen limits the size of the blockages flowing into the cleaning tube. The filter screen filters the broken blockages, allowing smaller blockages to be discharged into the cleaning tube with the water flow, while larger blockages remain in the channel and are broken up again by the cutter head. This improves the cleaning effect of the blockages inside the sonic logging tube and makes it less likely for the cleaning tube to become blocked, further improving the efficiency of blockage discharge.

[0016] Optionally, the drive assembly includes a second drive member, two rotating shafts, and a chain. The second drive member is fixedly connected to the bracket, and a fixed plate is fixedly connected to the bracket. The two rotating shafts are rotatably connected to the fixed plate, and the two rotating shafts are arranged opposite each other along the height direction of the fixed plate. A transmission wheel is coaxially fixed on the rotating shaft, and the chain is wound around the two transmission wheels. The output shaft of the second drive member is coaxially fixed to one of the rotating shafts, and the support block is fixedly connected to the chain.

[0017] By adopting the above technical solution, the second driving component drives the rotating shaft to rotate, the rotating shaft drives the transmission wheel to rotate, and the transmission wheel drives the chain to rotate. The support block is fixedly mounted on the chain, so that the chain drives the cleaning tube to extend into the sonic logging tube. The second driving component provides downward pressure to the expanding cone, so that the expanding cone squeezes and restores the deformed sonic logging tube wall. Furthermore, when encountering obstructions, the expanding cone can squeeze and break the obstructions, and in conjunction with the cutting head, it further breaks the obstructions, thereby improving the effect of obstruction breaking.

[0018] Optionally, the cleaning tube is provided with an extension tube at one end away from the expanding cone, the cleaning tube is connected to the extension tube, the extension tube is provided with a first rotary joint and a second rotary joint, the first rotary joint is connected to the cleaning tube, the second rotary joint is connected to the double-layer tube wall of the cleaning tube, and the extension tube is connected to the cleaning tube by a fixing component.

[0019] By adopting the above technical solution, the cleaning pipe is connected to the extension pipe through a fixing component, so that the total length of the cleaning pipe and the extension pipe matches the total length of the sonic logging pipe. Workers inject high-pressure water into the double-layered wall of the cleaning pipe through the second rotary joint, and the mixed and broken blockage is discharged through the first rotary joint along with the water flow.

[0020] Optionally, the fixing component includes multiple connecting blocks and multiple positioning blocks. The connecting blocks are located at the end of the cleaning tube away from the expanding cone and the end of the extension tube away from the cleaning tube. The positioning blocks are connected to the end of the extension tube near the cleaning tube. The positioning blocks are provided with a first snap-fit ​​block. The connecting blocks are provided with snap-fit ​​grooves for the first snap-fit ​​block to be inserted. The positioning blocks are provided with a first screw. The first screw passes through one end of the first snap-fit ​​block and is threadedly connected to the connecting block.

[0021] By adopting the above technical solution, the first snap-fit ​​block is inserted into the snap-fit ​​groove, which can improve the accuracy of the connection between the extension tube and the cleaning tube. The first screw fixes the extension tube and the cleaning tube, making it difficult for the extension tube and the cleaning tube to separate, thus improving the stability of the cleaning tube extending into the acoustic tube.

[0022] Optionally, a fixing block is slidably connected to the support rod, and two connecting plates are rotatably connected to the end of the fixing block away from the support rod. An arc-shaped block for clamping the cleaning tube is connected to the end of the connecting plate away from the fixing block. The arc-shaped block abuts against the connecting block. A fixing ring is slidably arranged on the two connecting plates, and the inner circumferential surface of the fixing ring abuts against the connecting plate.

[0023] By adopting the above technical solution, two arc-shaped blocks clamp the cleaning pipe, and a fixing ring is fitted onto two connecting plates, making it difficult for the two connecting plates to move relative to each other, thereby improving the stability of the clamping of the cleaning pipe by the two arc-shaped blocks. The second driving component drives the support block to move. After the support block abuts against the fixing block, the fixing block and the cleaning pipe move synchronously toward the sonic logging pipe. When it is necessary to install an extension pipe, after the output shaft of the first driving component separates from the cleaning pipe, the arc-shaped blocks support the connecting blocks, making it less likely for the cleaning pipe to fall into the sonic logging pipe.

[0024] Optionally, an elastic element is provided between the two connecting plates, and both ends of the elastic element are fixedly connected to a corresponding connecting plate.

[0025] By adopting the above technical solution, after the extension pipe and the cleaning pipe are connected, the worker slides the fixing ring to separate the fixing ring from the connecting plate. The two connecting plates separate under the action of the elastic force of the elastic element, so that the two arc blocks separate, making it easier for the worker to slide the fixing block, so that the arc block clamps the connected extension pipe, thereby protecting the extension pipe.

[0026] Optionally, the output shaft of the first driving component is coaxially connected to a driving block, the driving block is provided with a second snap-fit ​​block, the second snap-fit ​​block is inserted into the second snap-fit ​​groove, the driving block is provided with a second screw, and one end of the second screw passes through the second snap-fit ​​block and is threadedly connected to the connecting block.

[0027] By adopting the above technical solution, the second snap-fit ​​block is inserted into the snap-fit ​​groove, and the second screw is threadedly connected to the connecting block, so that the output shaft of the first drive component is coaxially fixed with the cleaning tube or the extension tube. Thus, when the support block moves, the first drive component can push the cleaning tube or the extension tube into the sonic logging tube, and the output shaft of the first drive component can drive the cleaning tube to rotate, so that the cutter head breaks up the blockage in the sonic logging tube.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By installing a pipe expander cone and a spray nozzle on the cleaning pipe, the cutter inside the expander cone breaks up the blockage inside the acoustic logging pipe, and the cleaning nozzle sprays high-pressure water onto the inner wall of the acoustic logging pipe to flush it. This allows the broken blockage to be discharged from the acoustic logging pipe along with the water flow, thus improving the efficiency of blockage removal. When the expander cone contacts the deformed wall of the acoustic logging pipe, the rotating expander cone squeezes the deformed wall, causing it to return to its original position, thus facilitating the insertion of the ultrasonic testing probe into the acoustic logging pipe.

[0030] 2. By installing a return nozzle on the inner wall of the cleaning pipe, the return nozzle sprays water into the cleaning pipe, which improves the water flow in the cleaning pipe. This causes the water in the cleaning pipe to flow from the end of the cleaning pipe near the cutter head to the end away from the cutter head. As a result, the water flow between the outer wall of the cleaning pipe and the sonic logging pipe passes through the cutter head and carries the broken blockage into the cleaning pipe, and then out of the sonic logging pipe. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a sonic logging pipe cleaning device according to an embodiment of this application.

[0032] Figure 2 This is a schematic diagram of the cleaning tube in an embodiment of this application.

[0033] Figure 3 This is a schematic diagram of the structure of the fixed component in the embodiments of this application.

[0034] Figure 4 This is a schematic diagram of the structure of the driving component in the embodiments of this application.

[0035] Figure 5 This is a schematic diagram of the support block in an embodiment of this application.

[0036] Figure 6 yes Figure 5 A schematic diagram is placed at point A in the middle to illustrate the structural relationship between the drive block and the extension tube.

[0037] Figure 7 yes Figure 5A schematic diagram is placed at point B to illustrate the structural relationship between the connecting plate and the fixing ring.

[0038] Explanation of reference numerals in the attached drawings: 1. Bracket; 11. First driving component; 12. Support rod; 13. Support block; 14. Fixing plate; 15. Driving block; 16. Second snap-fit ​​block; 17. Second screw; 2. Cleaning pipe; 21. Acoustic pipe; 22. Cleaning nozzle; 23. Return nozzle; 3. Expanding pipe cone; 31. Cutting head; 32. Through groove; 33. Filter screen; 4. Driving assembly; 41. Second driving component; 42. Rotating shaft; 43. Chain; 44. Transmission wheel; 5. Extension pipe; 51. First rotary joint; 52. Second rotary joint; 6. Fixing assembly; 61. Connecting block; 62. Positioning block; 63. First snap-fit ​​block; 64. Snap-fit ​​groove; 65. First screw; 7. Fixing block; 71. Connecting plate; 72. Arc-shaped block; 73. Fixing ring; 74. Elastic element. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0040] This application discloses a device for cleaning the borehole of a sonic logging pipe. (Refer to...) Figure 1 A device for cleaning a sonic logging pipe includes a bracket 1 with rollers fixedly connected to it for easy movement. A cleaning pipe 2 and a first driving member 11 are slidably connected to the bracket 1. The output shaft of the first driving member 11 is fixedly connected to the cleaning pipe 2. In this embodiment, the first driving member 11 is a motor for driving the cleaning pipe 2 to rotate. The cleaning pipe 2 extends into the sonic logging pipe 21 to clean the blockages inside the sonic logging pipe 21.

[0041] Reference Figure 1 and Figure 2 The cleaning pipe 2 is fixedly connected to an expanding cone 3 at its end, and the circumference of the expanding cone 3 gradually tapers from the end closest to the cleaning pipe 2 towards the end furthest from the cleaning pipe 2. During the insertion of the cleaning pipe 2 into the acoustic logging pipe 21, if the wall of the acoustic logging pipe 21 deforms, the expanding cone 3, upon contact with the deformed wall, compresses the deformed wall, causing it to return to its original position. A through groove 32 is provided on the expanding cone 3, extending along its length. A cutter head 31 and a filter screen 33 are fixedly connected to the wall of the through groove 32, positioned opposite each other along the length of the through groove 32. The cutter head 31 is located at the end of the expanding cone 3 furthest from the cleaning pipe 2, and the filter screen 33 is located at the end of the expanding cone 3 closest to the cleaning pipe 2.

[0042] The cleaning pipe 2 has a double-walled structure. Multiple cleaning nozzles 22 are fixedly connected to the outer wall of the cleaning pipe 2. These nozzles are evenly arranged along the circumference of the cleaning pipe 2 and are inclined towards the expanding conical head 3. Multiple return nozzles 23 are fixedly connected to the inner wall of the cleaning pipe 2. These return nozzles are evenly arranged along the circumference of the cleaning pipe 2 and are inclined towards the end of the cleaning pipe 2 furthest from the expanding conical head 3.

[0043] During the process of the cleaning pipe 2 extending into the sonic logging pipe 21, the expanding conical head 3 crushes the blockages inside the sonic logging pipe 21. The first driving component 11 drives the cleaning pipe 2 to rotate, which in turn drives the cutter head 31 on the expanding conical head 3 to rotate, causing the cutter head 31 to crush the blockages inside the sonic logging pipe 21. The cleaning nozzle 22 sprays high-pressure water onto the wall of the sonic logging pipe 21 to clean the remaining blockages on the inner wall of the sonic logging pipe 21. The high-pressure water flow carries the crushed blockages from the through groove 32 into the cleaning pipe 2 through the expanding conical head 3. The return nozzle 23 sprays high-pressure water into the cleaning pipe 2, increasing the fluidity of the water in the cleaning pipe 2, thereby increasing the efficiency of the water in the cleaning pipe 2 in carrying the blockages out of the cleaning pipe 2. The filter screen 33 limits the size of the blockages entering the cleaning pipe 2. Compared to larger blockages, smaller blockages have less mass and are more easily discharged from the sonic logging pipe 21 with the water flow. Larger blockages remain in the channel 32 and are broken up again by the cutter head 31, which makes the cleaning tube 2 less prone to blockage, thereby improving the efficiency of removing blockages from the acoustic tube 21.

[0044] Reference Figure 1 , Figure 2 and Figure 3 The end of the cleaning pipe 2 furthest from the expanding cone 3 is connected to an extension pipe 5 via a fixing component 6, and the extension pipe 5 is connected to the cleaning pipe 2. Workers connect multiple extension pipes 5 according to the pile length to ensure that the total length of the cleaning pipe 2 and the extension pipe 5 matches the total length of the sonic logging pipe 21. The fixing component 6 includes multiple connecting blocks 61 and multiple positioning blocks 62. The connecting blocks 61 are fixedly installed at the end of the cleaning pipe 2 furthest from the expanding cone 3 and at the end of the extension pipe 5 furthest from the cleaning pipe 2. The positioning blocks 62 are fixedly installed on the end of the extension pipe 5 near the cleaning pipe 2, and a first snap-fit ​​block 63 is fixedly connected to the positioning block 62. The connecting blocks 61 have snap-fit ​​grooves 64 for the first snap-fit ​​block 63 to be inserted into, and the first snap-fit ​​block 63 abuts against the inner wall of the snap-fit ​​groove 64, thereby improving the precision of the connection between the extension pipe 5 and the cleaning pipe 2. A first screw 65 is rotatably connected to the positioning block 62. The first screw 65 passes through one end of the first snap-fit ​​block 63 and is threadedly connected to the connecting block 61, thereby fixing the connection between the extension tube 5 and the cleaning tube 2.

[0045] Reference Figure 4The extended pipe 5 is rotatably connected to a first rotary joint 51 and a second rotary joint 52. The first rotary joint 51 is connected to the inner wall of the cleaning pipe 2, and the second rotary joint 52 is connected to the double-layer pipe wall of the cleaning pipe 2. The second rotary joint 52 is also connected to an external water supply pipe for injecting high-pressure water into the double-layer pipe wall of the cleaning pipe 2. The mixed and broken blockages in the cleaning pipe 2 are discharged through the first rotary joint 51 with the water flow.

[0046] Reference Figure 4 A fixing plate 14 is fixedly connected to the bracket 1, and a support rod 12 is fixedly connected to the fixing rod. The support rod 12 is set along the height direction of the bracket 1. A support block 13 is slidably connected to the support rod 12. The first driving member 11 is fixedly connected to the support block 13. The support block 13 slides along the length direction of the support rod 12. The bracket 1 is provided with a driving assembly 4 for driving the support block 13 to slide.

[0047] Reference Figure 5 and Figure 6 A drive block 15 is coaxially fixed on the output shaft of the first drive component 11. A second snap-fit ​​block 16 is fixedly connected to the drive block 15. The second snap-fit ​​block 16 is inserted into the snap-fit ​​groove 64 of the connecting block 61 on the cleaning tube 2 or the extension tube 5. The second snap-fit ​​block 16 abuts against the groove wall of the snap-fit ​​groove 64. A second screw 17 is rotatably connected to the drive block 15. One end of the second screw 17 passes through the second snap-fit ​​block 16 and is threadedly connected to the connecting block 61, thereby making the output shaft of the first drive component 11 coaxially fixed with the cleaning tube 2 or the extension tube 5.

[0048] Reference Figure 4 The drive assembly 4 includes a second drive component 41, two rotating shafts 42, and a chain 43. The second drive component 41 is fixedly connected to the bracket 1. In this embodiment, the second drive component 41 is a forward and reverse rotating motor. Both rotating shafts 42 are rotatably connected to the fixed plate 14, and the two rotating shafts 42 are arranged opposite each other along the height direction of the fixed plate 14. The output shaft of the second drive component 41 is coaxially fixed with one of the rotating shafts 42. A transmission wheel 44 is coaxially fixed on each rotating shaft 42. The chain 43 is wound around the two transmission wheels 44, and the chain 43 is always kept taut. The second drive component 41 drives the rotating shafts 42 to rotate, the rotating shafts 42 drive the transmission wheels 44 to rotate, and the transmission wheels 44 drive the chain 43 to rotate. The support block 13 is fixedly connected to the chain 43. The chain 43 drives the support block 13 to move, so that the cleaning tube 2 moves with the support block 13. When the cleaning tube 2 is inserted into the test tube, and the cutter head 31 encounters an obstruction, the second driving component 41 drives the support block 13 to move and provide downward pressure to the expanding tube cone 3, which improves the effect of the expanding tube cone 3 on the repositioning of the deformed inner wall of the acoustic tube 21 and improves the effect of the cutter head 31 on breaking up the obstruction.

[0049] Reference Figure 5 , Figure 6 and Figure 7 A fixing block 7 is slidably connected to the support rod 12, and the fixing block 7 is located below the support block 13. Two connecting plates 71 are rotatably connected to the end of the fixing block 7 away from the support rod 12. An elastic element 74 is fixedly connected between the two connecting plates 71. In this embodiment, the elastic element 74 is a compression spring. An arc-shaped block 72 is connected to the end of each connecting plate 71 away from the fixing block 7, and the inner arc surfaces of the two arc-shaped blocks 72 are arranged opposite each other for clamping the cleaning tube 2 or the extension tube 5. The end of the arc-shaped block 72 away from the acoustic tube 21 abuts against the connecting block 61. A fixing ring 73 is slidably connected to the two connecting plates 71, and the inner circumferential surface of the fixing block 7 abuts against the connecting plate 71, so that the two arc-shaped blocks 72 are not easily separated, thereby improving the clamping effect of the arc-shaped blocks 72 on the cleaning tube 2 or the extension tube 5.

[0050] The second driving component 41 drives the support block 13 to move. After the support block 13 abuts against the fixing block 7, the fixing block 7 and the cleaning pipe 2 move synchronously toward the sonic logging pipe 21. When the extension pipe 5 needs to be installed, after the output shaft of the first driving component 11 separates from the cleaning pipe 2, the arc-shaped block 72 supports the connecting block 61, making it less likely for the cleaning pipe 2 to fall into the sonic logging pipe 21. After the extension pipe 5 is connected to the cleaning pipe 2, the sliding fixing ring 73 separates the fixing ring 73 from the connecting plate 71. Under the elastic force of the elastic component 74, the two arc-shaped blocks 72 separate, making it easier for the operator to slide the fixing block 7, so that the arc-shaped blocks 72 clamp the connected extension pipe 5, thereby protecting the extension pipe 5.

[0051] The implementation principle of the sonic logging pipe cleaning device in this application embodiment is as follows: First, the staff selects an appropriate number of extension pipes 5 according to the length of the pile foundation, so that the total length of the extension pipes 5 and the cleaning pipe 2 matches the middle length of the sonic logging pipe 21. The extension pipes 5 are connected to the cleaning pipe 2. Then, the output shaft of the first drive component 11 is fixedly connected to the end of the extension pipe 5 away from the expansion cone head 3. The first drive component 11 and the second drive component 41 are started, and high-pressure water is injected into the double-layer pipe wall of the cleaning pipe 2 through the second rotary joint 52.

[0052] During the descent of the cleaning pipe 2, the expanding cone 3 squeezes the deformed wall of the sonic logging pipe 21, causing the wall to return to its original position. The cutter head 31 breaks up the blockage inside the sonic logging pipe 21, and the cleaning nozzle 22 sprays high-pressure water onto the wall of the sonic logging pipe 21 to remove any remaining blockage. After passing through the expanding cone 3, the high-pressure water carries the broken blockage from the through groove 32 into the cleaning pipe 2. Under the action of the high-pressure water jet from the return nozzle 23, the broken blockage is discharged from the sonic logging pipe 21 along with the water flow through the cleaning pipe 2.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for cleaning a sonic logging pipe, characterized in that: The device includes a bracket (1), a cleaning tube (2), a tube expander (3), a cutter (31), and a first driving member (11). The cleaning tube (2) is slidably mounted on the bracket (1). One end of the cleaning tube (2) is connected to the tube expander (3). The tube expander (3) has a through groove (32) for the cutter (31) to be installed. The cutter (31) is connected to the groove wall of the through groove (32). The cleaning tube (2) has a double-walled structure. Multiple cleaning nozzles (22) are provided on the outer wall of the cleaning tube (2). The first driving member (11) is connected to the bracket (1) and is used to drive the cleaning tube (2) to rotate. A support rod (12) is fixedly connected to the bracket (1), and a support block (13) is slidably connected to the support rod (12). The first driving member (11) is fixedly connected to the support block (13), and the bracket (1) is provided with a driving assembly (4) for driving the support block (13) to slide. The drive assembly (4) includes a second drive member (41), two rotating shafts (42) and a chain (43). The second drive member (41) is fixedly connected to the bracket (1). A fixed plate (14) is fixedly connected to the bracket (1). The two rotating shafts (42) are rotatably connected to the fixed plate (14), and the two rotating shafts (42) are arranged opposite to each other along the height direction of the fixed plate (14). A transmission wheel (44) is coaxially fixed on the rotating shaft (42). The chain (43) is wound around the two transmission wheels (44). The output shaft of the second drive member (41) is coaxially fixed to one of the rotating shafts (42). The support block (13) is fixedly connected to the chain (43). The cleaning tube (2) has an extension tube (5) at one end away from the expansion cone (3). The cleaning tube (2) is connected to the extension tube (5). The extension tube (5) is provided with a first rotary joint (51) and a second rotary joint (52). The first rotary joint (51) is connected to the cleaning tube (2), and the second rotary joint (52) is connected to the double-layer wall of the cleaning tube (2). The extension tube (5) and the cleaning tube (2) are connected by a fixing component (6).

2. The device for cleaning a sonic logging pipe according to claim 1, characterized in that: The cleaning tube (2) is provided with a plurality of return nozzles (23) on its inner wall. The return nozzles (23) are arranged toward the end of the cleaning tube (2) away from the cutter head (31), and the plurality of return nozzles (23) are evenly arranged along the inner circumferential surface of the cleaning tube (2).

3. The device for cleaning a sonic logging pipe according to claim 1, characterized in that: A filter screen (33) is fixedly connected to the wall of the through groove (32), and the filter screen (33) and the cutter head (31) are arranged opposite to each other in the through groove (32) along the length direction of the through groove (32).

4. The device for cleaning a sonic logging pipe according to claim 1, characterized in that: The fixing component (6) includes multiple connecting blocks (61) and multiple positioning blocks (62). The connecting block (61) is located at one end of the cleaning tube (2) away from the expanding cone (3) and at one end of the extension tube (5) away from the cleaning tube (2). The positioning block (62) is connected to the end of the extension tube (5) near the cleaning tube (2). The positioning block (62) is provided with a first snap-fit ​​block (63). The connecting block (61) is provided with a snap-fit ​​groove (64) for the first snap-fit ​​block (63) to be inserted. The positioning block (62) is provided with a first screw (65). The first screw (65) passes through one end of the first snap-fit ​​block (63) and is threadedly connected to the connecting block (61).

5. The device for cleaning a sonic logging pipe according to claim 4, characterized in that: A fixing block (7) is slidably connected to the support rod (12). Two connecting plates (71) are rotatably connected to one end of the fixing block (7) away from the support rod (12). An arc-shaped block (72) for clamping the cleaning tube (2) is connected to one end of the connecting plate (71) away from the fixing block (7). The arc-shaped block (72) abuts against the connecting block (61). A fixing ring (73) is slidably provided on the two connecting plates (71). The inner circumferential surface of the fixing ring (73) abuts against the connecting plate (71).

6. The device for cleaning a sonic logging pipe according to claim 5, characterized in that: An elastic element (74) is provided between the two connecting plates (71), and both ends of the elastic element (74) are fixedly connected to a corresponding connecting plate (71).

7. The sonic logging pipe cleaning device according to claim 4, characterized in that: The output shaft of the first driving member (11) is coaxially connected to a driving block (15). The driving block (15) is provided with a second snap-fit ​​block (16). The second snap-fit ​​block (16) is inserted into the snap-fit ​​groove (64). The driving block (15) is provided with a second screw (17). The second screw (17) passes through one end of the second snap-fit ​​block (16) and is threadedly connected to the connecting block (61).

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