Pile foundation hole cleaning device

Abstract

The invention belongs to the technical field of pile foundation hole cleaning, and particularly relates to a pile foundation hole cleaning device which comprises a mounting plate, the mounting plate is located on the left side of a pile foundation body, the upper side wall of the mounting plate is fixedly connected with a controller, an air compressor and a sedimentation tank, and the air outlet end of the air compressor fixedly communicates with a high-pressure air pipe. The lower end of the high-pressure air pipe is located in the pile foundation body. In the hole cleaning process of the pile foundation, the slag content in slurry can be detected in real time, the power of an air compressor is automatically reduced according to the reduction of the slag content in the slurry, the problem that high-pressure airflow excessively scours the hole wall and collapses the hole wall is solved, when gas is conveyed into the pile foundation, multi-direction ventilation can be carried out, and the hole cleaning efficiency is improved. Therefore, the four faces of the hole bottom of the pile foundation can be blown by the air compressor, the hole bottom cleaning quality is guaranteed, meanwhile, the hole cleaning device can adapt to large-diameter pile foundations of different sizes, and the application range of the hole cleaning device is widened.

Description

Technical Field

[0001] The invention belongs to the technical field of pile foundation hole cleaning, and particularly relates to a pile foundation hole cleaning device. Background Art

[0002] Pile foundation hole cleaning is a key link in the construction of bored cast-in-place piles, directly affecting the pile body quality, bearing capacity and durability. The purpose of hole cleaning is to remove the sediment at the bottom of the hole and adjust the mud properties to ensure that the bottom of the hole is clean and the mud specific gravity is appropriate during concrete pouring. For example, a subway pile foundation hole cleaning device proposed in the patent publication number CN210033335U.

[0003] When the existing pile foundation hole cleaning device operates, it relies on an air compressor to convey gas into the pile hole, and the density difference and kinetic energy generated by the compressed air mixed with the mud carry the drill cuttings at the bottom of the hole out. To ensure the hole cleaning efficiency, the air compressor usually needs to operate at a relatively high working intensity. However, as the hole cleaning operation progresses, the slag content in the mud in the pile hole gradually decreases, while the air volume of the air compressor is not adjusted synchronously. The continuous high-pressure air flow will cause excessive erosion of the hole wall, especially in formations with poor stability such as sand layers and gravel layers, which are extremely likely to cause hole wall collapse, resulting in defects such as hole enlargement or necking, seriously affecting the construction quality and safety of subsequent steel cage lowering and concrete pouring processes.

[0004] Therefore, a pile foundation hole cleaning device is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the invention is to provide a pile foundation hole cleaning device for the above problems.

[0006] To achieve the above purpose, the invention adopts the following technical solutions: A pile foundation hole cleaning device includes a mounting plate, the mounting plate is located on the left side of the pile foundation body, the upper side wall of the mounting plate is fixedly connected with a controller, an air compressor and a sedimentation tank, the air outlet end of the air compressor is fixedly communicated with a high-pressure air pipe, the lower end of the high-pressure air pipe is located inside the pile foundation body, and further includes: Multiple hoses are evenly distributed on the pipe wall of the high-pressure air pipe located inside the pile foundation body. One end of the hose far from the high-pressure air pipe and the lower end of the high-pressure air pipe are fixedly communicated with a jet head, and the jet heads located above are connected to the high-pressure air pipe through brackets; The lower section slurry discharge pipe is connected to the pipe wall of the high-pressure air pipe through a bracket. The upper end of the lower section slurry discharge pipe is threadedly communicated with an arc-shaped pipe, the upper end of the arc-shaped pipe is threadedly communicated with an upper section slurry discharge pipe, and the liquid outlet end of the upper section slurry discharge pipe is located above the sedimentation tank; A slag content detection component is connected to the side wall of the upper section slurry discharge pipe for detecting the slag content of the mud; An anti-blocking component is connected to the lower end of the lower section slurry discharge pipe to prevent larger sand and gravel from entering the lower section slurry discharge pipe and causing blockage; A stop component, connected above the sedimentation tank, is used to detect the completion of the hole cleaning work.

[0007] Preferably, the slag content detection component includes a laser scattering instrument fixedly connected to the side wall of the upper discharge pipe. A transparent glass plate is inlaid on the front side wall of the upper discharge pipe. The laser scattering instrument is electrically connected to the controller. A connecting cylinder is fixedly connected to the upper inner wall of the upper discharge pipe. A connecting seat is connected to the inner wall of the connecting cylinder through a spring. A bent rod is fixedly connected to the side wall of the connecting seat away from the spring. The bent rod is movably inserted into the connecting cylinder. A waterproof pad is provided at the connection between the connecting cylinder and the bent rod. One end of the bent rod extending out of the connecting cylinder is fixedly connected to a connecting plate. A driving motor is fixedly connected to the upper side wall of the connecting plate. A protective cover covering the outside of the driving motor is fixedly connected to the upper side wall of the connecting plate. The output end of the driving motor is fixedly connected to a connecting frame. The connecting frame is of an inverted U-shaped structure. Rubber scraping plates are fixedly connected to both the left and right sides of the connecting frame.

[0008] Preferably, the anti-blocking component includes an anti-blocking sleeve slidably sleeved on the lower end of the lower discharge pipe. Liquid inlet holes are provided on the side wall of the anti-blocking sleeve. A support ring is fixedly sleeved on the pipe wall of the lower discharge pipe. The support ring is fixedly connected to the anti-blocking sleeve through an elastic rod. A fixed seat is fixedly connected to the right side wall of the anti-blocking sleeve. A cleaning rod is rotatably connected to the side wall of the fixed seat through a sealed bearing. A cleaning plate is fixedly connected to the lower end of the cleaning rod. A spiral plate is fixedly connected to the upper end of the cleaning rod. A plate sleeve matching the spiral plate is fixedly connected to the pipe wall of the lower discharge pipe through a bracket.

[0009] Preferably, the stop component includes a vertical plate fixedly connected to the upper side wall of the sedimentation tank. An electric push rod is fixedly connected to the side wall of the vertical plate. The moving end of the electric push rod is fixedly connected to a mounting frame. The mounting frame is of an inverted U-shaped structure. A roller is rotatably connected to the side wall of the mounting frame through a damping bearing. A plurality of placement racks are fixedly connected to the side wall of the roller. The placement racks are of a U-shaped structure. A wire mesh frame is placed in the placement rack. A sliding plate is fixedly connected to the side wall of the wire mesh frame close to the placement rack. A sliding groove matching the sliding plate is provided on the inner wall of the placement rack. The sliding plate is connected to the placement rack through a spring. A tension sensor is fixedly connected to the inner wall of the placement rack. The detection end of the tension sensor is connected to the sliding plate. The tension sensor is electrically connected to the controller.

[0010] Preferably, a detection cavity is provided inside the arc-shaped pipe. A hydraulic sensor is fixedly connected to the outer wall of the arc-shaped pipe. The detection end of the hydraulic sensor is located in the detection cavity.

[0011] Preferably, an anti-wear layer is fixedly connected to the inner wall of the arc-shaped pipe. The anti-wear layer is composed of nickel-based alloy.

[0012] Preferably, the outer wall fixing sleeve of the upper slurry discharge pipe is provided with a stabilizing frame, and the stabilizing frame is connected to the mounting plate.

[0013] Preferably, a water pump is provided on the right side of the pile basic body, and the water outlet end of the water pump is located inside the pile basic body.

[0014] Compared with the existing technology, the advantages of a pile foundation hole cleaning device are: 1. Through the slag content detection component, the slag content in the mud can be detected in real time during the hole cleaning process of the pile foundation, and the power of the air compressor can be automatically reduced according to the reduction of the slag content in the mud, so as to avoid excessive scouring of the hole wall by the high-pressure airflow and cause the hole wall collapse.

[0015] 2. Through the high-pressure air duct, hose and nozzle, multi-directional ventilation can be carried out when transporting gas into the pile foundation, so that the four sides of the pile foundation hole can be blown by the air compressor, ensuring the quality of hole bottom cleaning. At the same time, it can adapt to large-diameter pile foundations of different sizes, thereby improving the scope of application of the hole cleaning device.

[0016] 3. Through the anti-blocking components, when sand and gravel exceeding the specifications are blocked at the lower end of the slurry discharge pipe, the blocked sand and gravel can be automatically cleaned. While ensuring the smooth discharge of slurry from the slurry discharge pipe, there is no need to use additional electrical equipment, which reduces the use cost of the device.

[0017] 4. Through the set stop component, the progress of slurry discharge can be automatically detected after a certain period of time. When it is detected that the sediment in the pile foundation is completely removed, the hole cleaning work can be automatically suspended to avoid energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a pile foundation hole cleaning device provided by the present invention; Figure 2 It is a schematic diagram of the surface structure of a high-pressure air duct and a lower slurry discharge pipe in a pile foundation hole cleaning device provided by the present invention; Figure 3 It is a structural schematic diagram of a plugging component in a pile foundation hole cleaning device provided by the present invention; Figure 4 It is a cross-sectional view of an arc-shaped tube in a pile foundation hole cleaning device provided by the present invention; Figure 5 It is a structural schematic diagram of a slag content detection component in a pile foundation hole cleaning device provided by the present invention; Figure 6 It is a schematic diagram of the internal structure of a connecting tube in a pile foundation hole cleaning device provided by the present invention; Figure 7 It is a schematic diagram of the position relationship of multiple net frames in a pile foundation hole cleaning device provided by the present invention; Figure 8 It is a schematic diagram of the connection relationship between the placement rack and the mesh frame in a pile foundation hole cleaning device provided by the present invention.

[0019] In the figure: 1 mounting plate, 2 pile foundation body, 3 controller, 4 air compressor, 5 sedimentation tank, 6 high-pressure air pipe, 7 hose, 8 jet head, 9 lower slurry discharge pipe, 10 arc pipe, 11 upper slurry discharge pipe, 12 slag content detection component, 121 laser scatterometer, 122 transparent glass plate, 13 connecting cylinder, 14 connecting seat, 15 bent rod, 16 waterproof pad, 17 connecting plate, 18 driving motor, 19 protective cover, 20 connecting frame, 21 rubber scraper, 22 anti-blocking component, 221 anti-blocking sleeve, 222 liquid inlet hole, 23 support ring, 24 elastic rod, 25 fixed seat, 26 cleaning rod, 27 cleaning plate, 28 spiral plate, 29 plate sleeve, 30 stop component, 301 vertical plate, 302 electric push rod, 31 mounting frame, 32 roller, 33 placement rack, 34 mesh frame, 35 sliding plate, 36 tension sensor, 37 detection cavity, 38 hydraulic sensor, 39 anti-wear layer, 40 stabilizing frame, 41 water pump. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] As Figures 1-8 shown, a pile foundation hole cleaning device includes a mounting plate 1. The mounting plate 1 is located on the left side of the pile foundation body 2. The upper side wall of the mounting plate 1 is fixedly connected with a controller 3, an air compressor 4 and a sedimentation tank 5. The air outlet end of the air compressor 4 is fixedly communicated with a high-pressure air pipe 6. The lower end of the high-pressure air pipe 6 is located inside the pile foundation body 2. A water pump 41 is provided on the right side of the pile foundation body 2. The water outlet end of the water pump 41 is located inside the pile foundation body 2. It further includes: Multiple hoses 7 are evenly distributed on the pipe wall of the high-pressure air pipe 6 located inside the pile foundation body 2. One end of the hose 7 far from the high-pressure air pipe 6 and the lower end of the high-pressure air pipe 6 are both fixedly communicated with a jet head 8. The multiple jet heads 8 located above are connected to the high-pressure air pipe 6 through brackets. Hoses 7 with different lengths can be selected according to the diameter of the pile foundation, so that all four surfaces of the bottom of the pile foundation hole can be blown, ensuring the cleaning quality of the bottom of the hole. At the same time, it can adapt to large-diameter pile foundations of different sizes, improving the applicable range of the hole cleaning device; The lower slurry discharge pipe 9 is connected to the pipe wall of the high-pressure air pipe 6 through a bracket. The upper end of the lower slurry discharge pipe 9 is threadedly connected to an arc-shaped pipe 10. A detection cavity 37 is provided inside the arc-shaped pipe 10. A hydraulic sensor 38 is fixedly connected to the outer wall of the arc-shaped pipe 10. The detection end of the hydraulic sensor 38 is located inside the detection cavity 37. An anti-wear layer 39 is fixedly connected to the inner wall of the arc-shaped pipe 10. The anti-wear layer 39 is composed of nickel-based alloy. The upper end of the arc-shaped pipe 10 is threadedly connected to an upper slurry discharge pipe 11. The liquid outlet end of the upper slurry discharge pipe 11 is located above the sedimentation tank 5. A stabilizing frame 40 is fixedly sleeved on the outer wall of the upper slurry discharge pipe 11. The stabilizing frame 40 is connected to the mounting plate 1; The slag content detection component 12 is connected to the side wall of the upper slurry discharge pipe 11 and is used to detect the slag content of the slurry. The slag content detection component 12 includes a laser scattering instrument 121 fixedly connected to the side wall of the upper slurry discharge pipe 11. A transparent glass plate 122 is embedded in the front side wall of the upper slurry discharge pipe 11. The laser scattering instrument 121 is electrically connected to the controller 3. A connecting cylinder 13 is fixedly connected to the upper inner wall of the upper slurry discharge pipe 11. A connecting seat 14 is connected to the inner wall of the connecting cylinder 13 through a spring. A bent rod 15 is fixedly connected to the side wall of the connecting seat 14 away from the spring. The bent rod 15 is movably inserted into the connecting cylinder 13. A waterproof pad 16 is provided at the connection between the connecting cylinder 13 and the bent rod 15. One end of the bent rod 15 extending out of the connecting cylinder 13 is fixedly connected to a connecting plate 17. A driving motor 18 is fixedly connected to the upper side wall of the connecting plate 17. A protective cover 19 covering the outside of the driving motor 18 is fixedly connected to the upper side wall of the connecting plate 17. The output end of the driving motor 18 is fixedly connected to a connecting frame 20. The connecting frame 20 is of an inverted U-shaped structure. Rubber scraping plates 21 are fixedly connected to both the left and right sides of the connecting frame 20. Through this component, the slag content of the slurry can be detected; The anti-blocking component 22 is connected to the lower end of the lower slurry discharge pipe 9 to prevent larger sand and gravel from entering the lower slurry discharge pipe 9 and causing blockage. The anti-blocking component 22 includes an anti-blocking sleeve 221 slidably sleeved on the lower end of the lower slurry discharge pipe 9. Liquid inlet holes 222 are provided on the side wall of the anti-blocking sleeve 221. A support ring 23 is fixedly sleeved on the pipe wall of the lower slurry discharge pipe 9. The support ring 23 is fixedly connected to the anti-blocking sleeve 221 through an elastic rod 24. A fixed seat 25 is fixedly connected to the right side wall of the anti-blocking sleeve 221. A cleaning rod 26 is rotatably connected to the side wall of the fixed seat 25 through a sealed bearing. A cleaning plate 27 is fixedly connected to the lower end of the cleaning rod 26. A spiral plate 28 is fixedly connected to the upper end of the cleaning rod 26. A plate sleeve 29 matching the spiral plate 28 is fixedly connected to the pipe wall of the lower slurry discharge pipe 9 through a bracket. Through this component, the sand and gravel blocked outside the anti-blocking sleeve 221 can be cleaned; The stop component 30, which is connected above the sedimentation tank 5, is used to detect the completion of the hole cleaning work. The stop component 30 includes a vertical plate 301 fixedly connected to the upper side wall of the sedimentation tank 5. An electric push rod 302 is fixedly connected to the side wall of the vertical plate 301. The moving end of the electric push rod 302 is fixedly connected with an installation frame 31. The installation frame 31 is of an inverted U-shaped structure. A roller 32 is rotatably connected to the side wall of the installation frame 31 through a damping bearing. A plurality of placement racks 33 are fixedly connected to the side wall of the roller 32. The placement rack 33 is of a U-shaped structure. A wire mesh frame 34 is placed in the placement rack 33. A sliding plate 35 is fixedly connected to the side wall of the wire mesh frame 34 close to the placement rack 33. A sliding groove matching the sliding plate 35 is opened on the inner wall of the placement rack 33. The sliding plate 35 is connected to the placement rack 33 through a spring. A tension sensor 36 is fixedly connected to the inner wall of the placement rack 33. The detection end of the tension sensor 36 is connected to the sliding plate 35. The tension sensor 36 is electrically connected to the controller 3. Through this component, the progress of the hole cleaning work can be detected.

[0022] Now, the operation principle of the present invention is described as follows: The operator measures the thickness of the sediment in the pile foundation body 2 in advance, as well as the mud specific gravity, viscosity, and sand content, and records them. Then, the mounting plate 1 is placed on the left side of the pile foundation body 2, and the upper slurry discharge pipe 11, the arc-shaped pipe 10, and the lower slurry discharge pipe 9 are assembled together, and the lower slurry discharge pipe 9 and the high-pressure air pipe 6 are connected together through a bracket. Then, the lower ends of the lower slurry discharge pipe 9 and the high-pressure air pipe 6 are placed into the pile foundation body 2. Next, the air compressor 4 is controlled to work at a certain power according to the recorded data, and the water pump 41 is controlled to work. The water pump 41 conveys water into the pile foundation body 2, and the air compressor 4 compresses the gas and conveys it to the mud near the bottom of the hole through the high-pressure air pipe 6, the hose 7, and the jet head 8, forming a large number of bubbles. After the bubbles are mixed with the mud, the density of the gas-liquid mixture is significantly lower than the density of the original mud in the hole. The pressure difference formed by the low-density mixture and the original mud in the hole makes the gas-liquid mixture rise rapidly along the lower slurry discharge pipe 9, the elbow pipe, and the upper slurry discharge pipe 11 and is discharged into the sedimentation tank 5. While the air compressor 4 is working, the controller 3 also controls the laser scattering instrument 121 to work, and uses the laser scattering instrument 121 to detect the slag content in the slurry in the upper slurry discharge pipe 11. During the hole cleaning work, the sediment amount in the pile foundation gradually decreases. When the laser scattering instrument 121 detects that the slag content in the slurry decreases, the laser scattering instrument 121 will send an electrical signal to the controller 3, and the controller 3 will control the power of the air compressor 4 to decrease to avoid the problem that the high-pressure air flow over-scours the hole wall and causes the hole wall to collapse. During the operation of the laser scatterometer 121, the controller 3 also controls the driving motor 18 to work at regular intervals. The driving motor 18 drives the connecting frame 20 to rotate by 90 degrees (in the initial state, the connecting frame 20 is placed in the upper slurry discharge pipe 11 along the flow direction of the slurry). The connecting frame 20 drives the two rubber scraping plates 21 to rotate, so that the large-area side of the rubber scraping plate 21 faces the flow direction of the slurry, so that the rubber scraping plate 21 is subjected to a greater impact force. The rubber scraping plate 21 will move against the spring tension between the connecting seat 14 and the connecting cylinder 13. During the movement of the rubber scraping plate 21, it will clean the impurities attached to the inner side of the transparent glass plate 122, thereby ensuring the light transmittance of the transparent glass plate 122. And the driving motor 18 works intermittently once every 20 seconds. When the driving motor 18 drives the connecting frame 20 to slowly rotate back to the initial position, the rubber scraping plate 21 is subjected to a smaller impact force from the slurry. Under the action of the spring tension between the connecting seat 14 and the connecting cylinder 13, the connecting frame 20 will drive the rubber scraping plate 21 to return to the initial position; When a large amount of sand and gravel blocks the liquid inlet hole 222 (when the volume of the sand and gravel exceeds one-third of the inner diameter of the lower slurry discharge pipe 9, the sand and gravel are likely to be blocked in the arc-shaped pipe 10 when passing through the lower slurry discharge pipe 9 through the arc-shaped pipe 10. Therefore, the diameter of the liquid inlet hole 222 is equal to one-third of the inner diameter of the lower slurry discharge pipe 9), the lower end of the anti-blocking sleeve 221 is blocked. Under the action of the pressure difference, the anti-blocking sleeve 221 will move upward. The anti-blocking sleeve 221 drives the cleaning rod 26 and the spiral plate 28 to move upward together through the fixing seat 25. During the upward movement of the spiral plate 28, it will pass through the plate sleeve 29. Through the mutual cooperation of the plate sleeve 29 and the spiral plate 28 (the spiral plate 28 is essentially formed by winding an inclined plane. When the spiral plate 28 moves upward, the contact point between the plate sleeve 29 and the spiral plate 28 will receive a reaction force along the tangent direction of the thread. Under the action of the reaction force, the spiral plate 28 will rotate during the upward movement), the spiral plate 28 will drive the cleaning rod 26 and the cleaning plate 27 to rotate together. During the rotation of the cleaning plate 27, it will clean the impurities blocked at the liquid inlet, thereby ensuring the efficiency of slurry transportation; After the hole cleaning operation has been carried out for ten minutes, the controller 3 will control the electric push rod 302 to work. The electric push rod 302 will drive the mounting frame 31 to move towards the upper discharge pipe 11 to a set position, so that the mesh frame 34 is located at the outlet of the upper discharge pipe 11. When the mud and sediment are discharged from the upper discharge pipe 11, they will fall into the lower mesh frame 34. The mesh frame 34 will drive the placement rack 33 and the roller 32 to slowly rotate against the resistance of the resistance bearing under the impact of the mud. The aperture of the mesh frame 34 is 2 mm, and the sediment with a size smaller than 2 mm will fall from the mesh holes, while the sediment with a size larger than 2 mm will be stored on the mesh frame 34. When the mesh frame 34 rotates to the vertical state, under the action of gravity, the mesh frame 34 will slide relative to the placement rack 33 against the elastic force of the spring. The weight of the sediment in the mesh frame 34 can be detected by the tension sensor 36 on this side. After the mesh frame 34 continues to rotate, the opening of the mesh frame 34 will face downwards. Under the action of gravity, the sediment in the mesh frame 34 will fall into the sedimentation tank 5. When the tension sensor 36 detects that the weight of the sediment in the mesh frame 34 is less than the set threshold value (2 g), it means that the sediment in the pile foundation has been basically cleaned up. The tension sensor 36 will send an electrical signal to the controller 3. After receiving this electrical signal, the controller 3 will control the buzzer module inside to work. After the surrounding operators hear the prompt sound, they can control the end of the hole cleaning operation after ten minutes, which not only ensures that the sediment in the pile foundation is cleaned up, but also avoids energy consumption.

[0023] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pile foundation hole cleaning device, including a mounting plate (1), the mounting plate (1) is located on the left side of the pile foundation body (2), the upper side wall of the mounting plate (1) is fixedly connected with a controller (3), an air compressor (4) and a sedimentation tank (5), the air outlet end of the air compressor (4) is fixedly communicated with a high-pressure air pipe (6), the lower end of the high-pressure air pipe (6) is located inside the pile foundation body (2), characterized in that, Further included are: Multiple hoses (7) are evenly distributed on the pipe wall of the high-pressure air duct (6) located inside the pile foundation body (2). One end of the hose (7) far from the high-pressure air duct (6) and the lower end of the high-pressure air duct (6) are fixedly connected and communicated with a jet head (8). Multiple jet heads (8) located above are connected to the high-pressure air duct (6) through a bracket; The lower slurry discharge pipe (9) is connected to the pipe wall of the high-pressure air duct (6) through a bracket. The upper end of the lower slurry discharge pipe (9) is threadedly connected and communicated with an arc-shaped pipe (10). The upper end of the arc-shaped pipe (10) is threadedly connected and communicated with an upper slurry discharge pipe (11). The liquid outlet end of the upper slurry discharge pipe (11) is located above the sedimentation tank (5); A slag content detection component (12) is connected to the side wall of the upper slurry discharge pipe (11) for detecting the slag content of the slurry; An anti-blocking component (22) is connected to the lower end of the lower slurry discharge pipe (9) to prevent the lower slurry discharge pipe (9) from being blocked; A stop component (30) is connected above the sedimentation tank (5) for detecting the completion of the hole cleaning work.

2. The pile foundation hole cleaning device according to claim 1, characterized in that, The slag content detection component (12) includes a laser scattering instrument (121) fixedly connected to the side wall of the upper slurry discharge pipe (11). A transparent glass plate (122) is inlaid on the front side wall of the upper slurry discharge pipe (11). The laser scattering instrument (121) is electrically connected to the controller (3). A connecting cylinder (13) is fixedly connected to the upper inner wall of the upper slurry discharge pipe (11). A connecting seat (14) is connected to the inner wall of the connecting cylinder (13) through a spring. A bent rod (15) is fixedly connected to the side wall of the connecting seat (14) far from the spring. The bent rod (15) is movably inserted into the connecting cylinder (13). A waterproof pad (16) is provided at the connection between the connecting cylinder (13) and the bent rod (15). One end of the bent rod (15) extending out of the connecting cylinder (13) is fixedly connected to a connecting plate (17). A driving motor (18) is fixedly connected to the upper side wall of the connecting plate (17). A protective cover (19) covering the outside of the driving motor (18) is fixedly connected to the upper side wall of the connecting plate (17). The output end of the driving motor (18) is fixedly connected to a connecting frame (20). The connecting frame (20) is of an inverted U-shaped structure. Rubber scraping plates (21) are fixedly connected to both the left and right sides of the connecting frame (20).

3. A pile foundation hole cleaning device according to claim 1, characterized in that, The anti-blocking component (22) includes an anti-blocking sleeve (221) slidably sleeved on the lower end of the lower slurry discharge pipe (9). Liquid inlet holes (222) are formed in the side wall of the anti-blocking sleeve (221). A support ring (23) is fixedly sleeved on the pipe wall of the lower slurry discharge pipe (9). The support ring (23) is fixedly connected to the anti-blocking sleeve (221) through an elastic rod (24). A fixed seat (25) is fixedly connected to the right side wall of the anti-blocking sleeve (221). A cleaning rod (26) is rotatably connected to the side wall of the fixed seat (25) through a sealed bearing. A cleaning plate (27) is fixedly connected to the lower end of the cleaning rod (26). A spiral plate (28) is fixedly connected to the upper end of the cleaning rod (26). A plate sleeve (29) matching the spiral plate (28) is fixedly connected to the pipe wall of the lower slurry discharge pipe (9) through a bracket.

4. A pile foundation hole cleaning device according to claim 1, characterized in that, The stop component (30) includes a vertical plate (301) fixedly connected to the upper side wall of the sedimentation tank (5). An electric push rod (302) is fixedly connected to the side wall of the vertical plate (301). The moving end of the electric push rod (302) is fixedly connected to an installation frame (31). The installation frame (31) has an inverted U-shaped structure. A roller (32) is rotatably connected to the side wall of the installation frame (31) through a damping bearing. A plurality of placement racks (33) are fixedly connected to the side wall of the roller (32). The placement racks (33) have a U-shaped structure. A wire mesh frame (34) is placed in the placement racks (33). A sliding plate (35) is fixedly connected to the side wall of the wire mesh frame (34) close to the placement rack (33). A sliding groove matching the sliding plate (35) is formed in the inner wall of the placement rack (33). The sliding plate (35) is connected to the placement rack (33) through a spring. A tension sensor (36) is fixedly connected to the inner wall of the placement rack (33). The detection end of the tension sensor (36) is connected to the sliding plate (35). The tension sensor (36) is electrically connected to the controller (3).

5. A pile foundation hole cleaning device according to claim 1, characterized in that, A detection cavity (37) is formed inside the arc-shaped pipe (10). A hydraulic sensor (38) is fixedly connected to the outer wall of the arc-shaped pipe (10). The detection end of the hydraulic sensor (38) is located inside the detection cavity (37).

6. The a kind of pile foundation hole cleaning device according to claim 1, characterized in that, An anti-wear layer (39) is fixedly connected to the inner wall of the arc-shaped pipe (10). The anti-wear layer (39) is composed of a nickel-based alloy.

7. A pile foundation hole cleaning device according to claim 1, characterized in that, A stabilizing frame (40) is fixedly sleeved on the outer wall of the upper slurry discharge pipe (11). The stabilizing frame (40) is connected to the mounting plate (1).

8. A pile foundation hole cleaning device according to claim 1, characterized in that, A water pump (41) is provided on the right side of the pile foundation body (2). The water outlet end of the water pump (41) is located inside the pile foundation body (2).

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