Piling apparatus for ground engineering and method of piling

Abstract

The application belongs to the technical field of pile drivers, in particular to a pile driving device for foundation engineering and a pile driving method thereof; the pile driving device comprises a drill mast, a hydraulic cylinder is fixedly installed on one side of the drill mast, the bottom end of the hydraulic cylinder is fixedly connected with a power seat, the bottom end of the power seat is rotatably connected with a rotating cylinder, a drill rod is arranged in the rotating cylinder, a drill bit is fixedly connected with the bottom end of the drill rod, a winch is installed on the other side end face of the drill mast away from the hydraulic cylinder, the winch is connected with the top end of the drill rod through a steel wire rope, and two rack plates one are fixedly connected with the two sides of the drill rod in a symmetrical manner; the rack plate one fixedly connected with the drill rod is engaged with a gear two, so that the drill rod slides upward in the process of soil removal, the rotation of the rotating shaft drives the two arc-shaped arc plates to relatively converge, the soil carried on the drill bit and the helical blade is protected, and the falling of the soil on the drill bit in the process that the staff controls the drill mast to transfer the soil to the waste soil stacking place is effectively avoided.

Description

Technical Field

[0001] This invention belongs to the field of pile driving technology, specifically a pile driving equipment and method for foundation engineering. Background Technology

[0002] A spiral pile driver mainly consists of a power head, drill rod, vertical drilling mast, hydraulic walking chassis, slewing structure, winch, operator's cab, electrical system, hydraulic system, and transport mechanism. In operation, the hydraulic system enables walking, rotation, raising and lowering of the column, and positioning of the pile driver. During operation, the power head drives the drill rod and drill bit to rotate, while the winch controls the raising and lowering of the drilling tools. The soil cut by the drill is transported to the ground by the spiral blades on the drill bit. After drilling to the designed depth, the drill is lifted to form the hole. Depending on the construction method, concrete can also be poured while the drill is being lifted to form the pile.

[0003] In existing technologies, during the drilling process of a pile driver, when the drill bit carries the soil out of the pile hole and transfers it to the soil pile, the soil attached to the drill bit often falls off the outside of the drill bit due to the lack of a protective mechanism. This not only causes soil debris to be scattered everywhere at the construction site, making it difficult for workers to clean up the site later, but also the soil falling off the drill bit during movement can cause injury to passing construction workers or construction equipment piled up at the construction site, creating a significant safety hazard at the construction site.

[0004] Therefore, the present invention provides a piling device and a piling method for foundation engineering. Summary of the Invention

[0005] To address the shortcomings of existing technologies and solve the problem that, during the drilling process of existing pile drivers, when the drill bit's spiral blades carry soil out of the pile hole and transfer it to the soil pile, the lack of a protective mechanism on the existing drill bits causes soil attached to the spiral blades to frequently fall off from the outside of the drill bit. This not only leads to soil debris scattered everywhere at the construction site, making it difficult for workers to clean up later, but also causes injury to passing construction personnel or construction equipment piled up at the construction site due to the soil falling off the drill bit during movement, posing a significant safety hazard to the construction site. This invention proposes a pile driving device and method for foundation engineering.

[0006] The technical solution applicable to solving the technical problem of this invention is as follows: A pile driving device for foundation engineering according to this invention includes a drill mast, a hydraulic cylinder is fixedly installed on one side of the drill mast, the bottom end of the hydraulic cylinder is fixedly connected to a power base, a rotating cylinder is rotatably connected to the bottom end of the power base, a drill rod is provided inside the rotating cylinder, a drill bit is fixedly connected to the bottom end of the drill rod, a winch is installed on the other end face of the drill mast opposite to the hydraulic cylinder, the winch is connected to the top end of the drill rod through a wire rope, two rack plates are symmetrically fixedly connected to both sides of the drill rod, the two rack plates are respectively meshed with two gears, the gears are sleeved on a rotating shaft, the two ends of the rotating shaft extend to the outside of the rotating cylinder and are respectively fixedly connected to two support arms, the other end of the support arm is fixedly connected to the outer wall of an arc-shaped guard plate, the inner diameter of the two arc-shaped guard plates is larger than the outer diameter of the rotating cylinder.

[0007] Preferably, a motor is fixedly installed at the top of the power base, and a gear transmission assembly is rotatably connected in the inner cavity of the power base. The motor is connected to the gear through the gear transmission assembly. The gear is rotatably connected to the bottom of the inner cavity of the power base. Two limiting blocks are symmetrically fixed to the inner side of the gear. Two limiting blocks are symmetrically fixed to the two sides of the inner cavity of the rotating cylinder. Limiting grooves are symmetrically opened on both sides of the drill rod. Both limiting blocks are slidably connected to the limiting grooves.

[0008] Preferably, the support assembly includes a fixed plate and a spring. Two fixed plates are symmetrically fixed to both sides of the inner cavity of the rotating cylinder. A sliding groove is provided on the fixed plate. A support rod is fixedly connected in the sliding groove. A slider is slidably connected to the support rod. A spring is fixedly connected between the slider and the bottom of the sliding groove. The spring is sleeved on the support rod. A rack plate is fixedly connected to one side of the slider. The rack plate is meshed with a gear.

[0009] Preferably, each of the two arc-shaped guard plates has a mounting base fixedly connected to its bottom end. A second motor is fixedly mounted on the mounting base. One end of the second motor is fixedly connected to a lead screw. A first threaded sleeve is threaded onto the first lead screw. The bottom end of the first threaded sleeve is fixedly connected to the base plate. A locking assembly is provided between the rotating shaft and the second gear.

[0010] Preferably, the locking assembly includes a bearing mounting component, an electromagnet, a locking block, and a permanent magnet. The bearing mounting component is sleeved on the rotating shaft and is fixedly connected to the second gear. A rotating ring is provided between the second gear and the rotating shaft. The rotating ring is sleeved on the rotating shaft. Two grooves are symmetrically formed on the rotating ring. An electromagnet is fixedly connected in the groove. A second spring is fixedly connected to the other side of the electromagnet. The other end of the second spring is fixedly connected to the locking block. The locking block is slidably connected to the groove. A permanent magnet is embedded in the locking block. The permanent magnet is adapted to the electromagnet. Two slots are symmetrically formed on the inner side of the second gear, and the locking block is adapted to the slots.

[0011] Preferably, the second motor is a dual-axis motor. The other end of the second motor, away from the first lead screw, is fixedly connected to the second lead screw. The second lead screw extends to the inner side of the mounting base, and the thread direction of the second lead screw is opposite to that of the first lead screw. A second threaded sleeve is threaded onto the second lead screw. An arc-shaped guide rail is fixedly connected to the top of the second threaded sleeve. Two arc-shaped guide rails can form a circular track with a gap. A guide block is slidably connected to one of the arc-shaped guide rails. A multi-stage telescopic rod is fixedly connected to the top of the guide block. A scraper is fixedly connected to the top of the multi-stage telescopic rod. The scraper is adapted to the drill bit. The arc length of the guide block is greater than the arc length of the gap. The contact surfaces of the guide block and the arc-shaped guide rail are magnetic, and the magnetic attraction between the contact surfaces is mutual.

[0012] Preferably, two support plates are symmetrically fixed to the inner wall of the arc-shaped guard plate on the same side as the guide block. Each of the two support plates has an elastic telescopic member on its opposite end face. A cleaning plate is fixed to the other side of the elastic telescopic member. The cleaning plate is adapted to the scraper.

[0013] Preferably, the elastic telescopic component includes a sleeve, a spring, and a T-shaped rod. The sleeve is fixedly connected to the support plate, and the T-shaped rod is slidably connected to the inner cavity of the sleeve. One end of the T-shaped rod extends to the outside of the sleeve and is fixedly connected to the cleaning plate. A spring is fixedly connected between the T-shaped rod and the inner wall of the sleeve. The cleaning plate has an inclined surface on the side near the scraper.

[0014] A piling method for foundation engineering, applicable to the aforementioned piling equipment for foundation engineering, includes the following steps:

[0015] S1: Site clearing, surveying and setting out pile positions: After leveling and clearing the construction site, set up pile foundation axis positioning points and leveling points. According to the pile position plan construction drawing, determine the position of each pile, mark it, and install the casing.

[0016] S2: Drilling and removing sediment from the bottom of the hole: The drill rod and drill bit are rotated by the power seat to cut and break the rock and soil in the pile hole and discharge it. When the pile hole reaches the design value, the sediment at the bottom of the pile hole is emptied.

[0017] S3: Inspection and acceptance of pile hole quality: After the pile hole reaches the design depth, protect the hole opening, accept it according to regulations, and keep construction records.

[0018] S4: Lowering the reinforcing cage and pouring concrete into the hole: After the pile hole inspection is completed, immediately lower the reinforcing cage and pour concrete into the pile hole.

[0019] Preferably, step S2 further includes the following step:

[0020] S21: The workers raise the drill rod to prepare for soil removal and energize the electromagnet, so that the two arc-shaped protective plates and the base plate come together to protect the soil on the drill bit.

[0021] S22: When the drill rod slides down to discharge soil, the electromagnet is de-energized so that the two arc-shaped guard plates remain in the combined state for protection. At the same time, the second motor is started to open the bottom plate and allow the scraper to scrape the soil off the drill bit.

[0022] S23: After the drill bit has finished expelling soil, the operator controls the drill rod to rise, then powers on the electromagnet and simultaneously controls the second motor to reverse, so that the base plate and scraper return to their original positions, and then proceeds with the next drilling and soil expulsion.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. The piling equipment and method for foundation engineering described in this invention, through the meshing of a rack plate one and a gear two fixed to the drill rod, causes the drill rod to slide upwards while discharging soil, and the rotating shaft drives the two arc-shaped plates to merge relative to each other, protecting the soil brought out by the drill bit and the spiral blades, effectively preventing soil from falling off the drill bit during the process of controlling the drill mast to transfer soil to the waste soil dumping site.

[0025] 2. The piling equipment and method for foundation engineering described in this invention can provide all-round protection for the drill bit and the soil carried on the drill bit by using a base plate in conjunction with two arc-shaped protective plates, thereby preventing soil from falling from below the drill bit and reducing the difficulty for workers to clean up the construction site. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 This is a schematic diagram of the drill mast of the present invention;

[0029] Figure 3 This is a first sectional view of the present invention;

[0030] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle;

[0031] Figure 5 yes Figure 3 Enlarged view of a section at point B in the middle;

[0032] Figure 6 This is a partial schematic diagram of the present invention;

[0033] Figure 7 This is a second sectional view of the present invention;

[0034] Figure 8 yes Figure 7 Enlarged view of a section at point C;

[0035] Figure 9 yes Figure 7 Enlarged view of a section at point D;

[0036] Figure 10 This is a schematic diagram of the interior of the arc-shaped protective plate of the present invention;

[0037] Figure 11 This is a schematic diagram of the mounting base of the present invention;

[0038] Figure 12 This is a cross-sectional view of the sleeve of the present invention;

[0039] Figure 13 This is a flowchart of the method of the present invention;

[0040] In the diagram: 1. Drill mast; 2. Hydraulic cylinder; 3. Power base; 4. Winch; 5. Drill rod; 6. Drill bit; 7. Rotating drum; 8. Motor 1; 9. Gear transmission assembly; 10. Gear 1; 11. Limiting block 1; 12. Limiting block 2; 13. Rack plate 1; 14. Gear 2; 15. Rack plate 2; 16. Fixing plate; 17. Rotating shaft; 18. Support arm; 19. Arc-shaped guard plate; 20. Bearing mounting component; 21. Rotating ring; 22. Electromagnetic... 23. Body; 24. Spring 1; 25. Locking block; 26. Permanent magnet; 27. Support rod; 28. Spring 2; 29. ​​Slider; 30. Mounting base; 31. Motor 2; 32. Lead screw 1; 33. Lead sleeve 1; 34. Base plate; 35. Lead screw 2; 36. Lead sleeve 2; 37. Arc-shaped guide rail; 38. Guide block; 39. Multi-stage telescopic rod; 40. Scraper; 41. Support plate; 42. Sleeve; 43. Cleaning plate; 44. Spring 3; 45. T-shaped rod. Detailed Implementation

[0041] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0042] like Figures 1-12As shown in the embodiment of the present invention, a pile driving device for foundation engineering includes a drill mast 1. A hydraulic cylinder 2 is fixedly installed on one side of the drill mast 1. The bottom end of the hydraulic cylinder 2 is fixedly connected to a power base 3. A rotating cylinder 7 is rotatably connected to the bottom end of the power base 3. A drill rod 5 is provided inside the rotating cylinder 7. A drill bit 6 is fixedly connected to the bottom end of the drill rod 5. A winch 4 is installed on the other end face of the drill mast 1, away from the side of the hydraulic cylinder 2. The winch 4 is connected to the top end of the drill rod 5 via a steel wire rope. The two sides of the drill rod 5 are symmetrically fixed... Two rack plates 13 are connected, each meshing with one gear 14. The gears 14 are mounted on a rotating shaft 17. Both ends of the rotating shaft 17 extend to the outside of the rotating cylinder 7 and are fixedly connected to two support arms 18. The other end of each support arm 18 is fixedly connected to the outer wall of an arc-shaped guard plate 19. The inner diameter of the two arc-shaped guard plates 19 is larger than the outer diameter of the rotating cylinder 7. During operation, the operator can use the hydraulic cylinder 2 and the winch 4 to both raise and lower the power base 3 and the drill rod 5. The power base 3 or the drill rod 5 can be raised and lowered independently. The power base 3 can drive the drill rod 5 and the rotating drum 7 to rotate together to realize the drilling of the pile hole and the entry of the pile tube into the hole. When the worker is drilling, the pile tube is disassembled from the rotating drum 7. With the winch 4 and the power base 3, the drill rod 5 can be drilled downwards at the pile position. After drilling to a certain depth, the worker can raise the drill rod 5. The spiral blade on the drill bit 6 can cut the soil in the pile hole and bring the soil out of the pile hole. At this time, the rack plate 1, which is fixed to the drill rod 5, is... The engagement of gear 14 with shaft 17 causes the two arc-shaped protective plates 19 to rotate and merge relative to each other, protecting the soil carried out by drill bit 6 and spiral blades. This effectively prevents soil from falling off drill bit 6 during the process of controlling drill mast 1 to transfer soil to the waste disposal site. This not only improves the problem of soil debris scattered and difficult to clean at the construction site due to soil falling, but also prevents soil falling during the soil transfer process from injuring passing construction personnel, greatly improving the safety of the construction site.

[0043] A motor 8 is fixedly mounted on the top of the power base 3. A gear transmission assembly 9 is rotatably connected to the inner cavity of the power base 3. The motor 8 is connected to a gear 10 via the gear transmission assembly 9. The gear 10 is rotatably connected to the bottom of the inner cavity of the power base 3. Two limiting blocks 11 are symmetrically fixed to the inner side of the gear 10. Two limiting blocks 22 are symmetrically fixed to both sides of the inner cavity of the rotating cylinder 7. Limiting grooves are symmetrically opened on both sides of the drill rod 5. Both limiting blocks 11 and 22 are connected to the limiting grooves. The groove is slidingly connected. During operation, when the drill rod 5 needs to rotate, the motor 8, in conjunction with the gear transmission assembly 9, can drive the gear 10 to rotate. The engagement between the limit block 11 and the drill rod 5 allows the drill rod 5 to rotate along with the gear 10, facilitating the rotary drilling of the pile hole by the drill bit 6. The engagement between the limit block 2 12 and the drill rod 5 allows the rotating cylinder 7 to rotate along with the drill rod 5, making it easier for the workers to place the pile cylinder into the pile hole after fixing the pile cylinder and the rotating cylinder 7.

[0044] The support assembly includes a fixed plate 16 and a spring 23. Two fixed plates 16 are symmetrically fixed to both sides of the inner cavity of the rotating cylinder 7. A groove is formed on each fixed plate 16, and a support rod 26 is fixedly connected within the groove. A slider 28 is slidably connected to the support rod 26. A spring 23 is fixedly connected between the slider 28 and the bottom of the groove. The spring 23 is sleeved on the support rod 26. A rack plate 25 is fixedly connected to one side of the slider 28, and the rack plate 25 meshes with a gear 24. During operation, when the drill bit 6 discharges soil outward and the drill rod 5 rises, the gear 24 rotates, simultaneously causing the rack plate 25 to slide downward, thus causing the slider 28 to... 8. Slide along the support rod 26 and compress the spring 23 until the two arc-shaped guard plates 19 merge to protect the soil on the drill bit 6. When the soil on the drill bit 6 is discharged and drilling resumes, the drill rod 5 slides downward, and the rack plate 13 drives the gear 14 to rotate again, causing the two arc-shaped guard plates 19 to open to both sides, preventing the arc-shaped guard plates 19 from affecting the drilling of the drill rod 5 and the drill bit 6. As the drill rod 5 moves downward, the rack plate 15 slides upward until the arc-shaped guard plates 19 open. After that, the spring 23 returns to its natural state. The spring 23 can indirectly provide auxiliary support for the arc-shaped guard plates 19, preventing the arc-shaped guard plates 19 from falling downward when the drill bit 6 is drilling.

[0045] Both of the arc-shaped protective plates 19 are fixedly connected to the bottom end of the mounting base 29. A second motor 30 is fixedly installed on the mounting base 29. One end of the second motor 30 is fixedly connected to a lead screw 31. A threaded sleeve 32 is threadedly connected to the lead screw 31. The bottom end of the threaded sleeve 32 is fixedly connected to the base plate 33. A locking assembly is provided between the rotating shaft 17 and the second gear 14. During operation, when the drill bit 6 discharges soil outward and the drill rod 5 rises upward, the two arc-shaped protective plates 19 merge relative to each other. At the same time, the base plate 33 below the arc-shaped protective plates 19 also merges. With the help of the two arc-shaped protective plates 19, the drill bit 6 and the soil carried on the drill bit 6 can be protected in all directions, preventing soil from falling from below the drill bit 6 and reducing the difficulty for workers to clean up the construction site. When soil needs to be discharged, the second motor 30 drives the lead screw 31 to rotate, causing the two base plates 33 to slide outward and open, making it convenient for workers to control the drill bit 6 to place the soil at the waste soil dumping site.

[0046] The locking assembly includes a bearing mounting part 20, an electromagnet 22, a locking block 24, and a permanent magnet 25. The bearing mounting part 20 is sleeved on the rotating shaft 17. The bearing mounting part 20 is fixedly connected to the gear 14. A rotating ring 21 is provided between the gear 14 and the rotating shaft 17. The rotating ring 21 is sleeved on the rotating shaft 17. Two symmetrical grooves are formed on the rotating ring 21, and an electromagnet 22 is fixedly connected to each groove. A spring 27 is fixedly connected to the other side of the electromagnet 22. The other end of 7 is fixedly connected to the locking block 24, which is slidably connected to the groove. A permanent magnet 25 is embedded in the locking block 24, and the permanent magnet 25 is adapted to the electromagnet 22. Two symmetrical slots are opened on the inner side of the gear 2 14, and the locking block 24 is adapted to the slots. During operation, when the drill rod 5 rises to prepare for soil discharge, the electromagnet 22 is energized, and a magnetic repulsion force is generated between the electromagnet 22 and the permanent magnet 25, causing the locking block 24 to slide out of the groove and engage with the slot on the gear 2 14. The locking of the rotating ring 21 and gear 2 14 is achieved, which in turn causes the rack plate 1 13 to drive the gear 2 14 to rotate, while the rotating ring 21 drives the rotating shaft 17 to rotate together. When soil is discharged, the drill rod 5 slides downward. At this time, the electromagnet 22 is de-energized, the spring 2 27 drives the locking block 24 to slide back into the groove, the rotating ring 21 and gear 2 14 are unlocked, and gear 2 14 no longer drives the rotating shaft 17 to rotate. The arc-shaped guard plate 19 remains in the combined protective state when soil falls, allowing the soil on the drill bit 6 to fall off. The soil is dropped more concentratedly, and the soil splashing during the traditional soil shaking process is avoided. After the soil is discharged, the drill rod 5 slides upward first. During this process, the electromagnet 22 is still de-energized. The rack plate 15 slides upward again. When the drill rod 5 is moved above the pile hole to prepare for drilling again, the electromagnet 22 is energized, and the rotating ring 21 and the gear 14 are locked again. The drill rod 5 slides downward, causing the arc-shaped guard plates 19 on both sides to open together with the bottom plate 33, which facilitates the operation of the drill rod 5 and the drill bit 6.

[0047] The second motor 30 is a dual-axis motor. The other end of the second motor 30, away from the first lead screw 31, is fixedly connected to the second lead screw 34. The second lead screw 34 extends to the inner side of the mounting base 29. A threaded sleeve 35 is threaded onto the second lead screw 34. An arc-shaped guide rail 36 is fixedly connected to the top of the second lead screw 35. Two arc-shaped guide rails 36 can form a circular track with a gap. A guide block 37 is slidably connected to one of the arc-shaped guide rails 36. A multi-stage telescopic rod 38 is fixedly connected to the top of the guide block 37. A scraper 39 is fixedly connected to the top of the multi-stage telescopic rod 38. The scraper 39 is adapted to the drill bit 6. The arc length of the guide block 37 is greater than the arc length of the gap. During operation, when the drill bit 6 is ready to discharge soil, the second motor... As lead screw 30 rotates, lead screw 34 rotates accordingly. The two arc-shaped guide rails 36 merge under the drive of lead sleeve 35. At the same time, the scraper 39 on guide block 37 is in contact with the spiral blade on drill bit 6. When the operator controls drill rod 5 to slide downward, scraper 39 will rotate relative to the spiral blade to scrape off the soil carried on drill bit 6. At this time, guide block 37 rotates along the two arc-shaped guide rails 36. Through scraper 39, guide block 37 and multi-stage telescopic rod 38, the soil on drill bit 6 can be scraped off quickly, avoiding the soil splashing that occurs in the traditional soil shaking process. The magnetic attraction between guide block 37 and arc-shaped guide rail 36 can prevent guide block 37 from shifting without external force.

[0048] Two support plates 40 are symmetrically fixed to the inner wall of the arc-shaped guard plate 19 on the same side as the guide block 37. Each of the two support plates 40 has an elastic telescopic member on its opposite end face. A cleaning plate 42 is fixed to the other side of the elastic telescopic member. The cleaning plate 42 is adapted to the scraper 39. During operation, after the soil scraping is completed, the drill rod 5 slides upward, so that the scraper 39 returns to its original position along the spiral blade. The operator can reverse the motor 30 by controlling the threaded sleeve 35 to drive the scraper 39 away from the drill bit 6. During this process, the cleaning plate 42 on the support plate 40 can clean both sides of the scraper 39 during the return stroke to prevent soil from adhering to the scraper 39 during the soil scraping process and affecting the soil scraping effect of the scraper 39 in the next stroke.

[0049] The elastic telescopic component includes a sleeve 41, a spring 43, and a T-shaped rod 44. The sleeve 41 is fixedly connected to the support plate 40. The T-shaped rod 44 is slidably connected in the inner cavity of the sleeve 41. One end of the T-shaped rod 44 extends to the outside of the sleeve 41 and is fixedly connected to the cleaning plate 42. The spring 43 is fixedly connected between the T-shaped rod 44 and the inner wall of the sleeve 41. The cleaning plate 42 has an inclined surface on the side near the scraper 39. During operation, the elastic force of the spring 43 ensures that the cleaning plate 42 is always in contact with the side wall of the scraper 39, and the inclined surface on one side of the cleaning plate 42 facilitates the cleaning and scraping effect on the side wall of the scraper 39.

[0050] like Figure 13 As shown, a piling method for foundation engineering is applicable to the aforementioned piling equipment for foundation engineering. The piling method includes the following steps:

[0051] S1: Site clearing, surveying and setting out pile positions: After leveling and clearing the construction site, set up pile foundation axis positioning points and leveling points. According to the pile position plan construction drawing, determine the position of each pile, mark it, and install the casing.

[0052] S2: Drilling and removing soil and removing sediment from the bottom of the hole: The power seat 3 drives the drill rod 5 and drill bit 6 to rotate and cut and break the rock and soil in the pile hole and discharge it. When the pile hole reaches the design value, the sediment at the bottom of the pile hole is emptied.

[0053] S3: Inspection and acceptance of pile hole quality: After the pile hole reaches the design depth, protect the hole opening, accept it according to regulations, and keep construction records.

[0054] S4: Lowering the reinforcing cage and pouring concrete into the hole: After the pile hole inspection is completed, immediately lower the reinforcing cage and pour concrete into the pile hole.

[0055] S2 also includes the following steps:

[0056] S21: The staff raises the drill rod 5 to prepare for soil removal and energizes the electromagnet 22, so that the two arc-shaped protective plates 19 and the base plate 33 come together to protect the soil on the drill bit 6.

[0057] S22: When the drill rod 5 slides down to discharge soil, the electromagnet 22 is de-energized, so that the two arc-shaped guard plates 19 remain in the combined state for protection. At the same time, the motor 30 is started to open the bottom plate 33, and the scraper 39 can scrape the soil off the drill bit 6.

[0058] S23: After the drill bit 6 has finished removing soil, the operator controls the drill rod 5 to rise and then powers on the electromagnet 22. At the same time, the operator controls the motor 2 30 to reverse, so that the base plate 33 and scraper 39 return to their original positions, and then the next drilling and soil removal is carried out.

[0059] Working principle: The operator can use the hydraulic cylinder 2 and winch 4 to raise and lower the power base 3 and drill rod 5 together, or control the raising and lowering of the power base 3 or drill rod 5 separately. The power base 3 can drive the drill rod 5 and rotating drum 7 to rotate together to realize the drilling of the pile hole and the entry of the pile tube into the hole. When the operator is drilling, the pile tube is disassembled from the rotating drum 7. With the winch 4 and the power base 3, the drill rod 5 can drill downwards at the pile position. After drilling to a certain depth, the operator can raise the drill rod 5. The spiral blades on the drill bit 6 can cut the soil in the pile hole and bring the soil out of the pile hole. At this time, the rack plate 13 fixed to the drill rod 5 meshes with the gear 14, causing the rotating shaft 17 to rotate and drive the two arc-shaped guard plates 19 to merge relative to each other. This system protects the drill bit 6 and the spiral blades from the mud carried out, effectively preventing mud from falling off the drill bit 6 during the process of transferring mud to the waste disposal site while controlling the drill mast 1. This not only improves the problem of scattered and difficult-to-clean soil at the construction site caused by mud falling off, but also prevents mud falling during the transfer process from injuring passing construction workers, greatly improving the safety of the construction site. When the drill bit 6 discharges soil and the drill rod 5 rises, the gear 2 14 rotates while driving the rack plate 2 15 to slide downwards, causing the slider 28 to slide along the support rod 26 and compress the spring 1 23 until the two arc-shaped guard plates 19 merge to complete the protection of the mud on the drill bit 6. After the mud on the drill bit 6 is discharged, drilling resumes. As drill rod 5 slides downwards, rack plate 13 drives gear 14 to rotate again, causing the two arc-shaped guard plates 19 to open to both sides. This prevents the arc-shaped guard plates 19 from affecting the rotation of drill rod 5 and drill bit 6. Simultaneously, rack plate 15 slides upwards until the arc-shaped guard plates 19 open, after which spring 23 returns to its natural state. Spring 23 indirectly provides auxiliary support for the arc-shaped guard plates 19, preventing them from falling back down when drill bit 6 is drilling. When drill bit 6 discharges soil and drill rod 5 rises, the two arc-shaped guard plates 19 merge together, and the base plate 33 below the arc-shaped guard plates 19 also merges. Together, the two arc-shaped guard plates 19 provide comprehensive protection for drill bit 6 and the soil it carries, preventing soil from spilling from the drill bit. The drill bit 6 falls down, reducing the difficulty for workers to clean the construction site. When soil needs to be discharged, the motor 2 30 drives the lead screw 1 31 to rotate, causing the two base plates 33 to slide outward and open, making it easier for workers to control the drill bit 6 to place the soil at the waste pile. When the drill rod 5 rises to prepare for soil discharge, the electromagnet 22 is energized, and a magnetic repulsion force is generated between the electromagnet 22 and the permanent magnet 25, causing the locking block 24 to slide out of the groove and engage with the slot on the gear 2 14, thus locking the rotating ring 21 and the gear 2 14. This causes the rack plate 1 13 to drive the gear 2 14 to rotate, while the rotating ring 21 drives the rotating shaft 17 to rotate together. When discharging soil, the drill rod 5 slides down. At this time, the electromagnet 22 is de-energized, and the spring 2 27 drives the locking block 24 to slide back into the groove.The rotating ring 21 and gear 14 are unlocked, and gear 14 no longer drives the rotating shaft 17 to rotate. The arc-shaped guard plate 19 remains in a combined protective state when the soil falls, which allows the soil on the drill bit 6 to fall more concentratedly and avoids the soil splashing during the traditional soil shaking process. After the soil is discharged, the drill rod 5 slides upward first. During this process, the electromagnet 22 remains de-energized, and the rack plate 15 slides upward again. When the drill rod 5 is moved above the pile hole to prepare for drilling again, the electromagnet 22 is energized, and the rotating ring 21 and gear 14 are locked again. The drill rod 5 slides downward, causing the arc-shaped guard plates 19 on both sides to open together with the base plate 33, which facilitates the operation of the drill rod 5 and the drill bit 6. When the drill bit 6 is ready to discharge soil, the motor 30 drives the lead screw 31 to rotate, and the lead screw 34 rotates accordingly. The two arc-shaped guide rails 36 merge under the drive of the lead sleeve 35. Simultaneously, the scraper 39 on the guide block 37 engages with the spiral blades on the drill bit 6. When the operator controls the drill rod 5 to slide downwards, the scraper 39 rotates relative to the spiral blades, scraping away the soil carried on the drill bit 6. At this time, the guide block 37 rotates along the two arc-shaped guide rails 36. Through the cooperation of the scraper 39, the guide block 37, and the multi-stage telescopic rod 38, the soil on the drill bit 6 can be quickly scraped away, avoiding the soil splashing that occurs during traditional soil shaking. After scraping is completed, the drill rod 5 slides upwards, causing the scraper 39 to return to its original position along the spiral blades. By controlling the motor 30 to reverse, the threaded sleeve 35 can drive the scraper 39 away from the drill bit 6. During this process, the cleaning plate 42 on the support plate 40 can clean both sides of the scraper 39 during the return stroke, preventing soil from adhering to the scraper 39 during the scraping process and affecting the scraping effect of the scraper 39 in the next stroke.

[0060] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0061] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A piling device for foundation engineering, characterized in that: The system includes a drill mast (1), on one side of which a hydraulic cylinder (2) is fixedly installed. The bottom end of the hydraulic cylinder (2) is fixedly connected to a power base (3). The bottom end of the power base (3) is rotatably connected to a rotating cylinder (7). A drill rod (5) is provided inside the rotating cylinder (7). A drill bit (6) is fixedly connected to the bottom end of the drill rod (5). A winch (4) is installed on the other end face of the drill mast (1) opposite to the hydraulic cylinder (2). The winch (4) is connected to the top end of the drill rod (5) via a wire rope. Two racks are symmetrically fixed to both sides of the drill rod (5). Plate 1 (13), the two rack plates 1 (13) are respectively meshed with two gears 2 (14), the gears 2 (14) are sleeved on the rotating shaft (17), the two ends of the rotating shaft (17) extend to the outside of the rotating cylinder (7) and are respectively fixed to two support arms (18), the other end of the support arm (18) is fixed to the outer wall of the arc-shaped guard plate (19), the inner diameter of the two arc-shaped guard plates (19) is larger than the outer diameter of the rotating cylinder (7), and two support components are symmetrically provided on both sides of the inner wall of the rotating cylinder (7), the support components are adapted to the gears 2 (14); The support assembly includes a fixed plate (16) and a spring (23). Two fixed plates (16) are symmetrically fixed to both sides of the inner cavity of the rotating cylinder (7). A sliding groove is provided on the fixed plate (16). A support rod (26) is fixed in the sliding groove. A slider (28) is slidably connected to the support rod (26). A spring (23) is fixed between the slider (28) and the bottom of the sliding groove. The spring (23) is sleeved on the support rod (26). A rack plate (15) is fixed to one side of the slider (28). The rack plate (15) meshes with a gear (14). The bottom ends of the two arc-shaped guard plates (19) are fixedly connected to the mounting base (29), and the second motor (30) is fixedly installed on the mounting base (29). One end of the second motor (30) is fixedly connected to the first lead screw (31), and the first lead screw (31) is threadedly connected to the first thread sleeve (32). The bottom end of the first thread sleeve (32) is fixedly connected to the base plate (33). A locking assembly is provided between the rotating shaft (17) and the second gear (14).

2. The piling equipment for foundation engineering according to claim 1, characterized in that: The top of the power seat (3) is fixedly installed with a motor (8). A gear transmission assembly (9) is rotatably connected in the inner cavity of the power seat (3). The motor (8) is connected to the gear (10) through the gear transmission assembly (9). The gear (10) is rotatably connected to the bottom of the inner cavity of the power seat (3). Two limiting blocks (11) are symmetrically fixed to the inner side of the gear (10). Two limiting blocks (2) are symmetrically fixed to the two sides of the inner cavity of the rotating cylinder (7). Limiting grooves are symmetrically opened on both sides of the drill rod (5). The limiting blocks (11) and the limiting blocks (2) are slidably connected to the limiting grooves.

3. The piling equipment for foundation engineering according to claim 2, characterized in that: The locking assembly includes a bearing mounting part (20), an electromagnet (22), a locking block (24), and a permanent magnet (25). The bearing mounting part (20) is fitted on the rotating shaft (17). The bearing mounting part (20) is fixedly connected to the gear two (14). A rotating ring (21) is provided between the gear two (14) and the rotating shaft (17). The rotating ring (21) is fitted to the rotating shaft (17). Two grooves are symmetrically opened on the rotating ring (21). An electromagnet (22) is fixedly connected in the groove. A spring two (27) is fixedly connected to the other side of the electromagnet (22). The other end of the spring two (27) is fixedly connected to the locking block (24). The locking block (24) is slidably connected to the groove. A permanent magnet (25) is embedded in the locking block (24). The permanent magnet (25) is adapted to the electromagnet (22). Two slots are symmetrically opened on the inner side of the gear two (14). The locking block (24) is adapted to the slot.

4. The piling equipment for foundation engineering according to claim 3, characterized in that: The second motor (30) is a dual-axis motor. The other end of the second motor (30) away from the first lead screw (31) is fixedly connected to the second lead screw (34). The second lead screw (34) extends to the inner side of the mounting base (29). The second lead screw (34) is threadedly connected to the second lead screw (34) and the top end of the second lead screw (35) is fixedly connected to the arc-shaped guide rail (36). The two arc-shaped guide rails (36) can form a circular track with a gap. A guide block (37) is slidably connected to one of the arc-shaped guide rails (36). The top end of the guide block (37) is fixedly connected to the multi-stage telescopic rod (38). The top end of the multi-stage telescopic rod (38) is fixedly connected to the scraper (39). The scraper (39) is adapted to the drill bit (6). The arc length of the guide block (37) is greater than the arc length of the gap.

5. The piling equipment for foundation engineering according to claim 4, characterized in that: Two support plates (40) are symmetrically fixed to the inner wall of the arc-shaped guard plate (19) on the same side as the guide block (37). The opposite end faces of the two support plates (40) are provided with elastic telescopic members. A cleaning plate (42) is fixed to the other side of the elastic telescopic member. The cleaning plate (42) is adapted to the scraper (39).

6. The piling equipment for foundation engineering according to claim 5, characterized in that: The elastic telescopic component includes a sleeve (41), a spring (43), and a T-shaped rod (44). The sleeve (41) is fixedly connected to the support plate (40). The T-shaped rod (44) is slidably connected in the inner cavity of the sleeve (41). One end of the T-shaped rod (44) extends to the outside of the sleeve (41) and is fixedly connected to the cleaning plate (42). The spring (43) is fixedly connected between the T-shaped rod (44) and the inner wall of the sleeve (41). The cleaning plate (42) has an inclined surface on the side near the scraper (39).

7. A method for pile driving in foundation engineering, characterized in that: This piling method is applicable to a piling device for foundation engineering as described in any one of claims 1-6, and the piling method includes the following steps: S1: Site clearing, surveying and setting out pile positions: After leveling and clearing the construction site, set up pile foundation axis positioning points and leveling points. According to the pile position plan construction drawing, determine the position of each pile, mark it, and install the casing. S2: Drilling and removing soil and removing sediment from the bottom of the hole: The drill rod (5) and drill bit (6) are rotated by the power seat (3) to cut and break the soil and rock in the pile hole and discharge it. When the pile hole reaches the design value, the sediment at the bottom of the pile hole is cleared. S3: Inspection and acceptance of pile hole quality: After the pile hole reaches the design depth, protect the hole opening, accept it according to regulations, and keep construction records. S4: Lowering the reinforcing cage and pouring concrete into the hole: After the pile hole inspection is completed, immediately lower the reinforcing cage and pour concrete into the pile hole.

8. The method for pile driving in foundation engineering according to claim 7, characterized in that: S2 also includes the following steps: S21: The staff raises the drill rod (5) to prepare for soil removal and energizes the electromagnet (22) so that the two arc-shaped protective plates (19) and the bottom plate (33) come together to protect the soil on the drill bit (6); S22: When the drill rod (5) slides down to discharge soil, the electromagnet (22) is de-energized so that the two arc-shaped guard plates (19) remain in the combined state for protection. At the same time, the motor (30) is started to open the bottom plate (33) and the scraper (39) can scrape the soil off the drill bit (6). S23: After the drill bit (6) has finished discharging the soil, the staff controls the drill rod (5) to rise up and then energizes the electromagnet (22), while controlling the motor (30) to reverse so that the bottom plate (33) and scraper (39) return to their original positions, and then the next drilling and soil discharge is carried out.

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