Long spiral bored pile facilitating installation of all-steel casing

Abstract

The application belongs to the technical field of building construction, and particularly relates to a long spiral drilling bored pile facilitating installation of a full-steel casing, which comprises a displacement base, a casing, a hollow circular groove penetrating through the top of the displacement base to the bottom thereof and having a size greater than the casing, the casing being located above the hollow circular groove and passing through the hollow circular groove when the casing moves downward, a speed control sliding device arranged on the displacement base, the speed control sliding device comprising positioning horizontal plates, the two positioning horizontal plates being located on the two sides of the casing and being symmetrically arranged with the center of the casing as the symmetric axis, a first base fixedly connected to the side surface of the displacement base, a top of the first base being provided with a double-action base plate, a distance measuring and anti-shaking unit arranged on the double-action base plate, and the distance measuring and anti-shaking unit comprising a double-action rotating shaft. The speed control sliding device avoids the need for large equipment such as a shipboard crane to lower the casing into the pile hole, reduces the installation difficulty of the casing, ensures the installation precision of the casing, and significantly improves the installation efficiency of the casing.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically a long spiral bored pile that is easy to install with an all-steel casing. Background Technology

[0002] In modern engineering construction, with the acceleration of urbanization, building projects are gradually expanding into complex geological areas (such as soft soil, quicksand, and high-water-level strata) and densely populated urban areas, posing numerous challenges to traditional pile foundation construction techniques. Specifically: while ordinary long spiral bored piles have the advantages of high drilling efficiency and no mud pollution, in soft soil or high-water-level strata, the lack of effective support for the borehole wall easily leads to borehole collapse and diameter reduction, resulting in substandard pile quality. While mud-wall bored piles can form borehole wall support through mud, they suffer from drawbacks such as complex mud preparation and treatment processes, long construction cycles, and the potential for mud leakage to pollute soil and groundwater. Even in quicksand strata, the mud-wall support effect is unstable, and the risk of borehole collapse remains. Meanwhile, some... The environmental and efficiency requirements for pile foundation construction are constantly increasing for sub-projects, and traditional technologies can no longer meet the comprehensive needs of "efficient drilling, reliable support, and green construction." The limitations of traditional technologies and the upgrading of engineering requirements have created a prominent contradiction. Against this background, the all-steel casing long spiral drilled pile technology has emerged. This technology integrates the efficient drilling characteristics of long spiral drilling with the rigid support advantages of all-steel casing. By using a construction method in which the casing and drill rod are simultaneously advanced or implanted later, the soil on the borehole wall is directly isolated from groundwater, fundamentally solving the problem of borehole collapse in complex strata. At the same time, it eliminates the cumbersome process of mud slurry wall protection, taking into account construction efficiency, engineering quality, and environmental protection requirements, and providing a suitable technical solution for pile foundation engineering under complex geological conditions.

[0003] In the prior art, Chinese Patent No. CN220503888U discloses a hoistable pile foundation steel casing, including a steel casing body, a hoisting ring sleeved on the outer end of the steel casing body, multiple hoisting mechanisms on the upper end of the hoisting ring, flexible sleeves fixedly connected to both ends of the hoisting ring, and connecting plates fixedly connected to the ends of a pair of flexible sleeves that are far apart from each other, with a buffer mechanism provided between the flexible sleeves and the connecting plates. This allows multiple hoisting mechanisms to connect the steel casing body to the overhead crane during the hoisting process of the pile foundation steel casing, enabling it to be transported and hoisted. At the same time, the auxiliary fixing mechanism uses clamping and fixing action to further strengthen the connection between the steel casing body and the overhead crane, making the connection more firm and stable, less prone to falling off, and improving the stability of the hoisting.

[0004] However, in actual use, the casing still needs to be lowered into the pile hole with the help of large equipment such as overhead cranes (i.e., cranes). This not only makes the installation of the casing inconvenient, but also makes it difficult to ensure the installation accuracy of the casing. These problems make the application of all-steel casing in the construction of cast-in-place pile long spiral drilling very limited, ultimately resulting in a significant reduction in the casing installation efficiency. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a long spiral bored pile that is easy to install with an all-steel casing, effectively solving the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a long spiral bored pile that facilitates the installation of an all-steel casing, comprising a displacement platform and a casing; the top of the displacement platform is provided with a hollow circular groove extending to its bottom, the size of which is larger than that of the casing; the casing is located above the hollow circular groove, and passes through the hollow circular groove when the casing moves downward; a speed-controlling sliding device is provided on the displacement platform, which is used to install the casing into the pile hole; the speed-controlling sliding device includes a positioning horizontal plate; two positioning horizontal plates are located on both sides of the casing and are symmetrically arranged with the center of the casing as the axis of symmetry;

[0007] Positioning cylinders; two sets of positioning cylinders are respectively connected through the opposite surfaces of two positioning horizontal plates; positioning arc blocks are respectively connected to the end of the two sets of positioning cylinders near the protective cylinder;

[0008] The positioning groove is set on the positioning arc block; the elastic drive wheel is installed in the positioning groove; when the two positioning arc blocks move relative to each other and contact the side wall of the casing, it is used to clamp the casing onto the displacement base to facilitate driving the casing into the pile hole.

[0009] The displacement base is fixedly connected to the side of the first base, and a repeating base plate is installed on its top; a distance measuring and anti-sway unit is provided on the repeating base plate, which is used to position the downward movement state of the protective cylinder during installation; the distance measuring and anti-sway unit includes a repeating rotating shaft, which is connected to the repeating base plate; a repeating gear is installed on the repeating rotating shaft.

[0010] A driven shaft is mounted on the top of the displacement base; a driven gear is mounted on the driven shaft;

[0011] Anti-movement horizontal plates: Two anti-movement horizontal plates are located on both sides of the casing. When the reciprocating gear rotates, it will drive the driven shaft to rotate, causing the driven gear on it to convert the rotational motion into linear motion, which will drive the two anti-movement horizontal plates to move continuously relative to each other and away from each other, monitoring and correcting the deviation when the casing moves downward.

[0012] Two T-shaped pipes are symmetrically installed on the top of the displacement base. The two T-shaped pipes are symmetrically arranged with the center of the protective cylinder as the axis of symmetry, and the input ends of the two T-shaped pipes face away from each other. A pressure anti-deviation assembly is provided on the T-shaped pipe. This assembly is used to prevent the protective cylinder from deviating too much during the downward movement. The pressure anti-deviation assembly includes an A valve, which is installed inside the input end of the T-shaped pipe.

[0013] Preferably, a horizontal pull block is used; the horizontal pull block is connected to the end of the positioning cylinder away from the protective cylinder; the positioning cylinder and the positioning horizontal plate are in sliding engagement;

[0014] A positioning spring is sleeved on a positioning cylinder; one end of the positioning spring is fixedly connected to a horizontal pull block, and the other end is fixedly connected to a positioning horizontal plate; the outer wall of the protective cylinder is located at the moving path of the positioning arc block; A contact piece is provided on the opposite surfaces of the positioning arc block and the positioning horizontal plate.

[0015] Preferably, one side of the positioning groove is located on the inner wall of the positioning arc block, and the other side is located on the outer wall of the positioning arc block;

[0016] The outline dimension of the elastic drive wheel exceeds the range of the inner diameter of the positioning arc block; the outer wall of the protective sleeve is located on the moving path of the elastic drive wheel;

[0017] The second base is fixedly connected to the positioning horizontal plate; a driving square column is connected through the second base near the side of the protective cylinder; the driving square column and the second base are slidably engaged; a driving limiting plate is connected to the end of the driving square column away from the protective cylinder; a driving square seat is connected to the end of the driving square column near the protective cylinder, and its opening faces the protective cylinder.

[0018] A rubber drive wheel is installed inside the opening of the drive seat; the outer wall of the casing is located on the movement path of the rubber drive wheel, and the rubber drive wheel contacts the casing earlier than the elastic drive wheel;

[0019] A drive spring is sleeved on a drive square post; one end of the drive spring is fixedly connected to the drive square seat, and the other end is fixedly connected to the second base.

[0020] Preferably, the driven racks are located on both sides of the driven gear and mesh with each other; guide rails are provided on the opposite sides of the two driven racks.

[0021] The third base is installed on the top of the displacement platform; the guide rail is connected to the third base, and the two are slidably engaged.

[0022] Driven bending columns; one end of each of the two driven bending columns is connected to a driven rack, and the other end is connected to a two anti-movement horizontal plate; the two anti-movement horizontal plates are symmetrically arranged with the center of the protective cylinder as the axis of symmetry; the anti-movement horizontal plate and the positioning horizontal plate are arranged on the same side.

[0023] Preferably, a set of anti-movement square tubes is provided on each of the two anti-movement horizontal plates on opposite sides;

[0024] The anti-moving square column is connected inside the anti-moving square tube, and the two are slidably fitted together; an anti-moving arc block is installed at the end of the anti-moving square column near the protective tube, and an energy-absorbing low-resistance pad is provided on the inner wall of the anti-moving arc block, and the outer wall of the protective tube is located on the moving path of the energy-absorbing low-resistance pad.

[0025] An anti-motion spring is located inside the anti-motion square tube; one end of the anti-motion spring is fixedly connected to the anti-motion square column, and the other end is fixedly connected to the bottom surface inside the anti-motion square tube.

[0026] Preferably, the power motor is mounted at the bottom of the first base;

[0027] A displacement threaded shaft is mounted on the top of the first base; the output end of the power motor is connected to the displacement threaded shaft.

[0028] The displacement hexagonal block is threadedly connected to the displacement threaded shaft;

[0029] Displacement slide bar; one end of the displacement slide bar is fixedly connected to the displacement hexagonal block, and the other end extends through to the bottom of the first base; the displacement slide bar and the first base are in sliding fit.

[0030] Active bending columns; one end of each of the two active bending columns is connected to a displacement hexagonal block, and the other end is connected to two positioning horizontal plates respectively;

[0031] The active gear frame is mounted on the displacement hexagonal block and is vertically arranged; the compound gear is located inside the active gear frame and the two are meshed together.

[0032] Preferably, the first bevel tooth is installed at the end of the repeating shaft away from the repeating base plate;

[0033] An active rotating shaft is connected to the top of the displacement base; a second bevel gear is connected to the active rotating shaft, which meshes with the first bevel gear; a compound rotating disk is connected to the end of the active rotating shaft away from the displacement base; a compound rotating column is connected to the top of the compound rotating disk.

[0034] A repeating long block is located at the top of the repeating turntable; a repeating groove is provided on the side of the repeating long block near the repeating turntable; a repeating column is located in the repeating groove and the two are slidably engaged; a guide cylinder is installed on one side of the repeating long block and is connected through it to the repeating base plate; the guide cylinder and the repeating base plate are slidably engaged; a driven gear frame is installed on the other side of the repeating long block and is horizontally arranged; a drive gear is connected to the end of the driven rotating shaft away from the displacement base, which is located in the driven gear frame and the two are meshed.

[0035] Preferably, the bent square tube has its input pipe installed on the anti-moving square tube, and the two are connected; the output end of the bent square tube faces the protective tube, the input end of the T-shaped pipe is located at the moving path of the output end of the bent square tube, and the two are connected after docking; a B valve is provided inside the bent square tube; a B contact piece is provided at both the input end of the T-shaped pipe and the output end of the bent square tube;

[0036] A bent circular tube is installed at one end on the top of a T-shaped pipe and at the other end facing the protective sleeve, with a limiting cylinder slidably connected inside; a fourth base is installed on the outer wall of the bent circular tube and is mounted on the T-shaped pipe; an active plate is connected to the end of the limiting cylinder near the protective sleeve.

[0037] A limiting spring is sleeved on a limiting cylinder; one end of the limiting spring is fixedly connected to the fourth base, and the other end is fixedly connected to the active plate.

[0038] Preferably, a U-shaped base is installed on the side of the drive limiting plate; a guide cylinder is fixedly installed inside the U-shaped base;

[0039] The driven plate is slidably connected to the guide cylinder; a guide spring is sleeved on the guide cylinder; one end of the guide spring is fixedly connected to the driven plate, and the other end is fixedly connected to the U-shaped base.

[0040] Preferably, the driven plate is located on the side away from the protective sleeve along the moving path of the active plate.

[0041] As can be seen from the above, the long spiral bored pile provided by this invention, which facilitates the installation of all-steel casings, avoids the problem of cranes being unable to install casings into the pile hole due to factors such as excessively narrow construction sites. By using a speed-controlled sliding device, it avoids the need for large equipment such as overhead cranes to lower the casing into the pile hole during installation, reducing the difficulty of casing installation and making the installation into the pile hole convenient and quick. Simultaneously, the casing is driven into the pile hole only after being clamped and limited, preventing the casing from shaking due to non-human factors during installation and affecting installation accuracy, thereby further improving the installation accuracy of the casing. This reduces the limitations of using all-steel casings in the long spiral bored pile construction process, ultimately significantly improving the installation efficiency of the casing. Attached Figure Description

[0042] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0043] In the attached diagram:

[0044] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0045] Figure 2This is a schematic diagram of the active bending column structure of the present invention;

[0046] Figure 3 This is a schematic diagram of the driven gear frame structure of the present invention;

[0047] Figure 4 This is a schematic diagram of the positioning arc block structure of the present invention;

[0048] Figure 5 This is a cross-sectional view of the bent circular tube of the present invention;

[0049] Figure 6 This is a schematic diagram of the rotating turntable structure of the present invention;

[0050] Figure 7 This is an exploded view of the active bonding plate of the present invention;

[0051] Figure 8 This is a cross-sectional view of the anti-movement square tube of the present invention;

[0052] Figure 9 This is a schematic diagram of the driving seat structure of the present invention;

[0053] Figure 10 This is a schematic diagram of the T-shaped pipe structure of the present invention;

[0054] In the diagram: 1. Displacement base; 2. Protective sleeve; 3. Hollow circular groove; 4. Positioning horizontal plate; 5. First base; 6. Re-moving base plate; 7. Re-moving rotating shaft; 8. Re-moving gear; 9. T-shaped pipe; 10. Positioning cylinder; 11. Horizontal pull block; 12. Positioning spring; 13. Positioning arc block; 14. A-contact piece; 15. Positioning groove; 16. Elastic drive wheel; 17. Second base; 18. Drive square column; 19. Drive limiting plate; 20. Drive square seat; 21. Rubber drive wheel; 22. Drive spring; 23. Driven rotating shaft; 24. Driven gear; 25. Driven rack; 26. Guide slide rail; 27. Third base; 28. Driven bending column; 29. ​​Anti-moving horizontal plate; 30. Anti-moving square cylinder; 31. Anti-moving square column; 3 2. Anti-arc block; 33. Energy-absorbing low-resistance pad; 34. Anti-arc spring; 35. Power motor; 36. Displacement threaded shaft; 37. Displacement hexagonal block; 38. Displacement slide column; 39. Active bending column; 40. Active gear frame; 41. First bevel gear; 42. Active rotating shaft; 43. Second bevel gear; 44. Reciprocating turntable; 45. Reciprocating column; 46. Reciprocating long block; 47. Reciprocating slide groove; 48. Guide cylinder; 49. Driven gear frame; 50. Drive gear; 51. Bending square tube; 52. B contact piece; 53. Bending round tube; 54. Limiting cylinder; 55. Fourth base; 56. Active mounting plate; 57. Limiting spring; 58. U-shaped base; 59. Guide cylinder; 60. Driven mounting plate; 61. Guide spring. Detailed Implementation

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0056] Implementation examples, by Figures 1 to 10The invention comprises a displacement base 1 and a casing 2. Telescopic columns with active telescopic control are movably installed at the four corners of the bottom of the displacement base 1. Wheels are mounted on the bottom of the telescopic columns to facilitate movement of the equipment between different locations within the construction area. Notably, the wheels can also be replaced with tracks to adapt to uneven construction areas and meet the needs of various terrains. Furthermore, when the construction ground is uneven, the vertical height of a corner or side of the displacement base 1 can be adjusted by actively controlling the telescopic columns at each corner, thereby adjusting the overall flatness of the displacement base 1. This ensures that the casing is in a vertical position when lowered through the displacement base 1, preventing the lowering angle of the casing from being affected by the tilt of the displacement base 1 with the ground. The top of the displacement base 1 has a through-hole extending to its bottom. A hollow circular groove 3, the size of which is larger than that of the casing 2; the casing 2 is located above the hollow circular groove 3, and passes through the hollow circular groove 3 when the casing 2 moves down; a speed-controlling sliding device is provided on the displacement base 1, which is used to install the casing 2 into the pile hole; the speed-controlling sliding device includes a positioning horizontal plate 4; two positioning horizontal plates 4 are located on both sides of the casing 2, and are symmetrically arranged with the center of the casing 2 as the axis of symmetry; a first base 5 is fixedly connected to the side of the displacement base 1, and a re-moving base plate 6 is installed on its top; two T-shaped pipes 9 are symmetrically installed on the top of the displacement base 1, and the two T-shaped pipes 9 are symmetrically arranged with the center of the casing 2 as the axis of symmetry, and the input ends of the two T-shaped pipes 9 face away from each other; positioning cylinders 10; two sets of positioning cylinders 10 are respectively connected through the opposite sides of the two positioning horizontal plates 4. The positioning cylinder 10 and the positioning horizontal plate 4 are slidably fitted together; a horizontal pull block 11 is connected to the end of the positioning cylinder 10 away from the protective cylinder 2; a positioning spring 12 is sleeved on the positioning cylinder 10; one end of the positioning spring 12 is fixedly connected to the horizontal pull block 11, and the other end is fixedly connected to the positioning horizontal plate 4; two sets of positioning cylinders 10 are respectively connected to positioning arc blocks 13 at the ends near the protective cylinder 2, and the outer wall of the protective cylinder 2 is located at the moving path of the positioning arc blocks 13; A contact piece 14 is provided on the opposite surfaces of the positioning arc blocks 13 and the positioning horizontal plate 4; a positioning groove 15 is provided on the positioning arc blocks 13; one side of the positioning groove 15 is located on the inner wall of the positioning arc blocks 13, and the other side is located on the outer wall of the positioning arc blocks 13; an elastic drive wheel 16 is installed in the positioning groove 15; elastic drive The outline dimensions of wheel 16 exceed the inner diameter range of positioning arc block 13; the outer wall of the protective cylinder 2 is located on the moving path of elastic drive wheel 16; the second base 17 is fixedly connected to the positioning horizontal plate 4; a drive square column 18 is connected through the second base 17 near the protective cylinder 2; the drive square column 18 and the second base 17 are slidably engaged; a drive limiting plate 19 is connected to the end of the drive square column 18 away from the protective cylinder 2; a drive square seat 20 is connected to the end of the drive square column 18 near the protective cylinder 2, and its opening faces the protective cylinder 2; a rubber drive wheel 21 is installed in the opening of the drive square seat 20; the outer wall of the protective cylinder 2 is located on the moving path of the rubber drive wheel 21, and the rubber drive wheel 21 contacts the protective cylinder 2 earlier than the elastic drive wheel 16; a drive spring 22 is sleeved on the drive square column 18.One end of the drive spring 22 is fixedly connected to the drive square base 20, and the other end is fixedly connected to the second base 17; the power motor 35 is installed at the bottom of the first base 5; the displacement threaded shaft 36 is installed at the top of the first base 5; the output end of the power motor 35 is connected to the displacement threaded shaft 36; the displacement hexagonal block 37 is threadedly connected to the displacement threaded shaft 36; the displacement slide column 38 is fixedly connected at one end to the displacement hexagonal block 37, and the other end extends through to the bottom of the first base 5; the displacement slide column 38 and the first base 5 are in sliding fit; the active bending column 39 is connected at one end to the displacement hexagonal block 37, and the other end is connected to the two positioning horizontal plates 4 respectively; the active gear frame 40 is installed on the displacement hexagonal block 37 and is vertically arranged; the double-acting gear 8 is located inside the active gear frame 40, and the two are meshed together;

[0057] When using the equipment, the displacement base 1 is moved to the pile hole where the casing needs to be installed. Since the pile hole is circular, its center is aligned with the center of the hollow circular groove 3 on the displacement base 1. Since the casing 2 is installed on the hollow circular groove 3, the casing 2 to be installed is aligned with the center of the pile hole, which improves the installation accuracy of the casing. At the same time, since the pile hole has been opened at this time, it means that the ground here has been leveled according to the construction requirements, which facilitates the movement of the displacement base 1 and the transportation of the casing 2. It also allows the casing 2 installed on the displacement base 1 to be lowered into the pile hole from different positions on the ground, which improves the convenience of the casing 2 installation, reduces construction limitations, and improves the use effect of the equipment.

[0058] When the casing 2 needs to be lowered into the drilled pile hole, the casing 2 should be installed on the displacement base 1 beforehand. The specific installation steps are as follows: by pulling the positioning cylinder 10 outward, or by adding a power source to the positioning cylinder 10, the positioning cylinder 10 moves to the upper limit of the positioning horizontal plate 4, thereby putting the positioning spring 12 into a buffer state, driving the positioning arc block 13 to move, so that the two positioning arc blocks 13 move away from each other. At this time, the casing 2 is placed vertically on the top of the hollow circular groove 3, with the center of the casing 2 aligned with the center of the hollow circular groove 3, so that the outer wall of the casing 2 moves to the range of movement of the positioning arc block 13. Then, by releasing or turning off the power source to the positioning cylinder 10, the positioning... The reset of spring 12 can drive the positioning arc block 13 to reset and move, so that the two positioning arc blocks 13 move relative to each other until they contact the side wall of the protective cylinder 2, thus limiting its position and clamping the protective cylinder 2 at the current height. At this time, the elastic drive wheel 16 on the positioning arc block 13 is also in contact with the outer wall of the protective cylinder 2, so that the elastic drive wheel 16 is in a certain buffer state to ensure its contact strength and friction with the outer wall of the protective cylinder 2. After the protective cylinder 2 is fixed on the displacement base 1, the power motor 35 is started, and its output end drives the displacement threaded shaft 36 to rotate, so that the displacement hexagonal block 37 on it moves downward at the first base 5 through the displacement slide column 38. The positioning horizontal plate 4 can be moved by the active bending column 39. Since the casing 2 is clamped by the positioning arc block 13 on the positioning horizontal plate 4, the downward movement of the positioning horizontal plate 4 can move the casing 2 downward, so that it gradually passes through the hollow circular groove 3 on the displacement base 1 and falls into the pile hole below the hollow circular groove 3. The casing 2 can then be driven into the pile hole for use. At the same time, the casing 2 can be installed on the displacement base 1 outside the construction site, avoiding the situation where the crane cannot be used due to the narrow space on the construction site, which prevents the casing 2 from being installed in the pile hole. This allows the operation of driving the casing 2 into the pile hole to be completed independently, avoiding the need for additional steps during the installation of the casing 2. Large equipment such as overhead cranes are required to lower the casing 2 into the pile hole, which reduces the difficulty of installation and makes it convenient and quick to install. Furthermore, the casing 2 is driven into the pile hole only after being clamped and positioned, preventing non-human-caused shaking during installation from affecting the installation accuracy. This further improves the installation accuracy of the casing 2, reducing the limitations of using all-steel casings in long spiral drilling of cast-in-place piles and significantly improving the installation efficiency. Additionally, the descent speed of the casing 2 can be controlled to prevent it from falling into the pile hole too quickly and causing damage, thus extending its service life.

[0059] It is worth mentioning that since the initial positions of the two positioning arc blocks 13 are the same, when the casing 2 is reset and clamped by the two positioning arc blocks 13, the casing 2 is clamped at the center of the displacement base 1, which is the center of the hollow circular groove 3. This makes the casing 2 installed on the displacement base 1 coaxial with the center of the hollow circular groove 3. Furthermore, the downward movement of the casing 2 into the pile hole is driven by the displacement threaded shaft 36, ensuring the stability of the casing 2 during downward movement. Since the displacement base 1 needs to move the casing on it... 2. When driving the casing 2 into the pile hole, the initial stopping position is based on the center of the hollow circular groove 3 on the displacement base 1, that is, the center of the hollow circular groove 3 is stopped at the center of the pile hole. This ensures that the downward-moving casing 2 is accurately driven into the pile hole, maximizing the installation accuracy of the casing 2 and guaranteeing its performance and effectiveness in subsequent use, further reducing the limitations of the casing 2 in construction. At the same time, after the positioning arc block 13 clamps the casing 2, the elastic drive wheel 16 on the positioning arc block 13 is in contact with the outer wall of the casing 2. The elastic drive wheel 16 is in contact with the casing 2, and its outline exceeds the inner diameter of the positioning arc block 13, ensuring a tight fit between the elastic drive wheel 16 and the casing 2. This provides a certain degree of cushioning, guaranteeing the strength and friction of the contact between the elastic drive wheel 16 and the casing 2. Furthermore, the elastic drive wheel 16 can contain a built-in drive source, allowing for active control of its rotation to move the clamped casing 2 up and down at the positioning arc block 13. This prevents the casing 2 from being driven into the pile hole to exceed the limit of the displacement threaded shaft 36, thus avoiding impact on the installation operation. It also provides additional downward pressure during the driving process, improving the installation effect and enabling the machine to operate on casings 2 of different lengths and pile holes of different depths, reducing limitations in equipment use. Simultaneously, by controlling the height of the positioning horizontal plate 4, the machine can clamp the casing 2 at different positions, preventing incorrect clamping from affecting the vertical stability of the casing 2 and further enhancing the safety of the casing 2 during driving into the pile hole.

[0060] It is worth mentioning that when the casing 2 is clamped by the two positioning arc blocks 13, the rubber drive wheel 21 contacts the casing 2 earlier than the elastic drive wheel 16. This means that the rubber drive wheel 21 on the positioning horizontal plate 4 contacts the side wall of the casing 2 first. The relative movement of the two rubber drive wheels 21 and their contact with the casing 2 allows for initial positioning of its position, preventing excessive deviation in installation position from affecting the accuracy of the casing 2 being driven into the pile hole. Small deviations can be finely adjusted by operating the displacement base 1. The casing 2 is essentially placed on the displacement base 1 for operation, facilitating the transportation of the casing 2 or the adjustment of its installation position. When the rubber drive wheel 21 needs to contact the casing 2, the drive column 18, which was originally pulling outward, is released, causing it to reset and move at the second base 17 on the positioning horizontal plate 4. This resets the drive spring 22, which was originally in a buffer state, causing the drive seat 20 on the drive column 18 to move closer to the casing 2 until the rubber drive wheel 21 on the drive seat 20 contacts the casing 2, thus continuously increasing the position. The increased contact strength and friction between the rubber drive wheel 21 and the casing 2 allow the casing 2 to be clamped and centered. The built-in drive source of the rubber drive wheel 21 can also be used to control the height of the clamped casing 2 and provide force when the casing 2 is driven into the pile hole. This further reduces the limitations of the equipment during use and when the casing 2 is driven into the pile hole, improving the installation and use efficiency of both the casing 2 and the equipment. Furthermore, if the casing 2 shifts during driving into the pile hole due to non-human factors, the resulting force acts on the positioning arc block 13, causing it to move closer to the positioning horizontal plate 4. If the shift is too large, the A-contact piece 14 on the opposing surfaces of the positioning horizontal plate 4 and the positioning arc block 13 will contact. The signal emitted will be transmitted to the operator via the controller, promptly alerting them and preventing the casing 2 from dislodging or swinging excessively during driving into the pile hole, thus improving the safety of the equipment and the casing 2 during installation.

[0061] In this embodiment, a distance measuring and anti-sway unit is provided on the reciprocating base plate 6. This unit is used to position the downward movement state of the protective cylinder 2 during installation. The distance measuring and anti-sway unit includes a reciprocating rotating shaft 7, which is connected to the reciprocating base plate 6. A reciprocating gear 8 is mounted on the reciprocating rotating shaft 7. A driven rotating shaft 23 is mounted on the top of the displacement base 1. A driven gear 24 is mounted on the driven rotating shaft 23. A driven rack 25 is mounted on the driven shaft 23. Two driven racks 25 are located on both sides of the driven gear 24 and mesh with each other. Guide rails 26 are provided on the opposite sides of the two driven racks 25. A third base 27 is mounted on the top of the displacement base 1. Guide rails 26 are also provided on the opposite sides of the two driven racks 25. 6 is connected to the third base 27, and the two are slidably engaged; driven bending column 28; one end of each of the two driven bending columns 28 is connected to one of the two driven racks 25, and the other end is respectively equipped with an anti-movement horizontal plate 29. The two anti-movement horizontal plates 29 are located on both sides of the protective cylinder 2, and are symmetrically arranged with the center of the protective cylinder 2 as the axis of symmetry; the anti-movement horizontal plate 29 and the positioning horizontal plate 4 are arranged on the same side; a set of anti-movement square tubes 30 are provided on the opposite sides of the two anti-movement horizontal plates 29; anti-movement square column 31 is connected to the anti-movement square tube 30, and the two are slidably engaged; an anti-movement arc block 32 is installed on the end of the anti-movement square column 31 near the protective cylinder 2, which prevents the arc from moving. The inner wall of block 32 is provided with an energy-absorbing low-resistance pad 33, and the outer wall of the protective cylinder 2 is located on the moving path of the energy-absorbing low-resistance pad 33; an anti-motion spring 34 is located inside the anti-motion square cylinder 30; one end of the anti-motion spring 34 is fixedly connected to the anti-motion square post 31, and the other end is fixedly connected to the inner bottom surface of the anti-motion square cylinder 30; a first bevel tooth 41 is installed on the end of the repeating rotating shaft 7 away from the repeating base plate 6; an active rotating shaft 42 is connected to the top of the displacement base 1; a second bevel tooth 43 is connected to the active rotating shaft 42, which meshes with the first bevel tooth 41; a repeating rotating disk 44 is connected to the end of the active rotating shaft 42 away from the displacement base 1; the repeating rotating disk 44 A repeating column 45 is connected to the top; a repeating long block 46 is located at the top of the repeating turntable 44; a repeating groove 47 is provided on the side of the repeating long block 46 near the repeating turntable 44; the repeating column 45 is located in the repeating groove 47 and the two are slidably engaged; a guide cylinder 48 is installed on one side of the repeating long block 46 and is connected through to the repeating base plate 6; the guide cylinder 48 and the repeating base plate 6 are slidably engaged; a driven gear frame 49 is installed on the other side of the repeating long block 46 and is horizontally arranged; a drive gear 50 is connected to the end of the driven rotating shaft 23 away from the displacement base 1, which is located in the driven gear frame 49 and the two are meshed.

[0062] When the speed-controlling sliding device controls the downward movement of the clamped protective sleeve 2, the process involves driving the protective sleeve 2 into the pile hole, which in turn drives the active gear frame 40 downward, causing the reciprocating gear 8 located within it to mesh and rotate. Under the action of the reciprocating rotating shaft 7, the first bevel gear 41 rotates, causing it to mesh with the second bevel gear 43 on the active rotating shaft 42, which in turn drives the reciprocating turntable 44 to rotate, causing the reciprocating column 45 on it to reciprocate continuously within the reciprocating sliding groove 47 of the reciprocating long block 46. This causes the reciprocating long block 46 to reciprocate and limit its movement at the reciprocating base plate 6 via the guide cylinder 48, thereby causing the reciprocating long block 46 to drive the driven gear frame 49 to reciprocate, causing the driven gear frame 49 located within the driven gear frame 49 to move back and forth. The driving gear 50 reciprocates, which in turn drives the driven gear 24 to reciprocate under the action of the driven shaft 23. This causes the two meshing driven racks 25 to move relative to or away from each other on the third base 27 via the guide rail 26. Under the action of the two driven bending columns 28, the two anti-moving horizontal plates 29 repeatedly move relative to or away from each other, causing them to move reciprocally under the action of the anti-moving square tube 30 and the anti-moving square column 31. This causes the anti-moving arc block 32 to continuously move closer to and away from the outer wall of the casing 2. Each time the anti-moving arc block 32 approaches the casing 2, the two are in contact, allowing the anti-moving spring 34 to be in a certain degree of buffering state. This can be used to monitor and locate the downward movement of the casing 2. The reciprocating relative and opposite movements of the two anti-movement arc blocks 32 can prevent the casing 2 from shifting due to non-human factors during its downward movement. Furthermore, any shift can be corrected immediately to prevent excessive shift from affecting the accuracy and effectiveness of the casing 2 when driven into the pile hole. Simultaneously, any shift of the casing 2 during downward movement can be detected promptly. For example, if it shifts to the left, the right side of the casing 2 may not contact the anti-movement arc block 32 or the contact strength may be insufficient, while the left side may prematurely contact the casing 2, resulting in excessive contact. This causes a change in the deformation of the anti-movement spring 34. The controller continuously monitors the deformation state of the anti-movement spring 34, and will issue an alarm when the deformation curve changes within a certain period. The information is reported to the staff to promptly remind them and prevent the casing 2 from dislodging or falling during the driving of the pile hole, which would affect the installation accuracy of the casing 2 and the safety of the equipment during use. This improves the performance of the equipment during use and further enhances the installation accuracy of the casing 2, thereby reducing the limitations of the equipment during use. At the same time, the buffering performance provided by the anti-movement spring 34 and the positioning spring 12 and drive spring 22 at the speed control sliding device reduces the impact force generated by the shaking of the casing 2 during the downward movement or driving into the pile hole, thereby further improving the stability of the casing 2 during movement and driving into the pile hole, and thus improving the installation effect of the casing 2.

[0063] In this embodiment, a pressure-adjusting anti-deviation assembly is provided on the T-shaped pipe 9. This assembly is used to prevent the protective cylinder 2 from deviating too much during the downward movement process. The pressure-adjusting anti-deviation assembly includes an A valve, which is installed inside the input end of the T-shaped pipe 9; a bent square tube 51, whose input pipe is installed on the anti-movement square tube 30, and the two are connected; the output end of the bent square tube 51 faces the protective cylinder 2, and the input end of the T-shaped pipe 9 is located at the moving path of the output end of the bent square tube 51, and the two are connected after docking; a B valve is provided inside the bent square tube 51; a B contact piece 52 is provided at both the input end of the T-shaped pipe 9 and the output end of the bent square tube 51; a bent round tube 53, one end of which is installed on the top of the T-shaped pipe 9, and the other end faces the protective cylinder 2, and a limit cylinder 54 is slidably connected inside; the bent round tube 53... A fourth base 55 is installed on the outer wall of the 3rd section, which is mounted on the T-shaped pipe 9; an active plate 56 is connected to one end of the limiting cylinder 54 near the end of the protective sleeve 2; a limiting spring 57 is sleeved on the limiting cylinder 54; one end of the limiting spring 57 is fixedly connected to the fourth base 55, and the other end is fixedly connected to the active plate 56; a U-shaped base 58 is installed on the side of the driving limiting plate 19; a guide cylinder 59 is fixedly installed inside the U-shaped base 58; a driven plate 60 is slidably connected to the guide cylinder 59; a guide spring 61 is sleeved on the guide cylinder 59; one end of the guide spring 61 is fixedly connected to the driven plate 60, and the other end is fixedly connected to the U-shaped base 58; the side of the driven plate 60 away from the protective sleeve 2 is located on the moving path of the active plate 56.

[0064] Each time the anti-arc block 32 contacts the outer wall of the casing 2, or when the casing 2 shifts or shakes during the contact process and acts on the anti-arc block 32, the anti-arc spring 34 deforms, causing a change in the distance between the anti-arc column 31 and the anti-arc tube 30. This compresses the internal space of the anti-arc tube 30, forcing the gas inside into the bent square tube 51. As the bent square tube 51 moves with the anti-arc tube 30, its output end contacts the input end of the T-shaped pipe 9. It is worth mentioning that the two ports can be configured for buffered contact to avoid damage caused by rigid connection. When the input end of the T-shaped pipe 9 and the output end of the bent square tube 51... When the B contact piece 52 at the end contacts, it indicates that the T-shaped pipe 9 and the bent square pipe 51 have been successfully connected. The signal is transmitted to the controller, which opens valves B and A, allowing the gas compressed into the bent square pipe 51 to be conducted through the T-shaped pipe 9 to the bent round pipe 53. This gas then acts on the limiting cylinder 54 at its output end, pushing the limiting cylinder 54 closer to the protective cylinder 2. This puts the limiting spring 57 in a buffered state, allowing it to reset and move the limiting cylinder 54 back to its original position, releasing the gas. As the limiting cylinder 54 moves the active plate 56 closer to the protective cylinder 2, it gradually contacts the driven plate 60, putting pressure on it. The specific pressure is determined by the contact strength between the anti-arc block 32 and the protective cylinder 2, and the amplitude of the protective cylinder 2's swaying. This causes the driven plate 60, under pressure, to be limited in its movement at the guide cylinder 59. Since the U-shaped base 58 on the guide cylinder 59 is mounted on the drive column 18, and the rubber drive wheel 21 inside the drive seat 20 on the drive column 18 has already contacted the protective cylinder 2 and cannot continue to move, the drive column 18 is limited and cannot move further. When the driven plate 60 continues to move closer to the protective cylinder 2, it does so at the guide cylinder 59 on the U-shaped base 58, which puts the guide spring 61 in a buffer state, allowing it to continuously apply pressure to the drive column 18. This ensures that insufficient contact strength between the rubber drive wheel 21 and the casing 2 causes the casing 2 to dislodge. It also prevents the casing 2 from shifting or shaking during downward movement, which could lead to dislodgement. For example, if the casing 2 shifts to the right, the driven plate 60 will move to the left, and the force will be applied to the drive column 18 to limit it. The magnitude of the offset force is directly proportional to the force applied to the drive column 18. In other words, the magnitude of the force applied to the drive column 18 is directly proportional to the magnitude of the force applied to the drive column 18. This prevents the casing 2 from shaking or shifting too much, which could affect its installation accuracy and stability. The process continues until the shifted casing 2 is pushed back to the center position, improving the use and installation effect of the equipment and the casing 2.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long spiral bored pile for easy installation of an all-steel casing, comprising a displacement platform and a casing; the top of the displacement platform is provided with a hollow circular groove extending to its bottom, the size of which is larger than that of the casing; the casing is located above the hollow circular groove, and passes through the hollow circular groove when the casing moves downward; characterized in that: A speed-controlling sliding device is provided on the displacement base, which is used to install the casing into the pile hole; the speed-controlling sliding device includes a positioning horizontal plate; the two positioning horizontal plates are located on both sides of the casing and are symmetrically arranged with the center of the casing as the axis of symmetry. Positioning cylinders; two sets of positioning cylinders are respectively connected through the opposite surfaces of two positioning horizontal plates; positioning arc blocks are respectively connected to the end of the two sets of positioning cylinders near the protective cylinder; The positioning groove is set on the positioning arc block; the elastic drive wheel is installed in the positioning groove; when the two positioning arc blocks move relative to each other and contact the side wall of the casing, it is used to clamp the casing onto the displacement base to facilitate driving the casing into the pile hole. The displacement base is fixedly connected to the side of the first base, and a repeating base plate is installed on its top; a distance measuring and anti-sway unit is provided on the repeating base plate, which is used to position the downward movement state of the protective cylinder during installation; the distance measuring and anti-sway unit includes a repeating rotating shaft, which is connected to the repeating base plate; a repeating gear is installed on the repeating rotating shaft. A driven shaft is mounted on the top of the displacement base; a driven gear is mounted on the driven shaft; Anti-movement horizontal plates: Two anti-movement horizontal plates are located on both sides of the casing. When the reciprocating gear rotates, it will drive the driven shaft to rotate, causing the driven gear on it to convert the rotational motion into linear motion, which will drive the two anti-movement horizontal plates to move continuously relative to each other and away from each other, monitoring and correcting the deviation when the casing moves downward. Two T-shaped pipes are symmetrically installed on the top of the displacement base. The two T-shaped pipes are symmetrically arranged with the center of the protective cylinder as the axis of symmetry, and the input ends of the two T-shaped pipes face away from each other. A pressure anti-deviation assembly is provided on the T-shaped pipe. This assembly is used to prevent the protective cylinder from deviating too much during the downward movement. The pressure anti-deviation assembly includes an A valve, which is installed inside the input end of the T-shaped pipe.

2. The long spiral bored pile according to claim 1, which facilitates the installation of an all-steel casing, is characterized in that: Includes a horizontal pull block; the horizontal pull block is connected to the end of the positioning cylinder away from the protective cylinder; the positioning cylinder and the positioning horizontal plate are in sliding engagement; A positioning spring is sleeved on a positioning cylinder; one end of the positioning spring is fixedly connected to a horizontal pull block, and the other end is fixedly connected to a positioning horizontal plate; the outer wall of the protective cylinder is located at the moving path of the positioning arc block; A contact piece is provided on the opposite surfaces of the positioning arc block and the positioning horizontal plate.

3. A long spiral bored pile for easy installation of an all-steel casing, as described in claim 2, is characterized in that: One side of the positioning groove is located on the inner wall of the positioning arc block, and the other side is located on the outer wall of the positioning arc block; The outline dimension of the elastic drive wheel exceeds the range of the inner diameter of the positioning arc block; the outer wall of the protective sleeve is located on the moving path of the elastic drive wheel; The second base is fixedly connected to the positioning horizontal plate; a driving square column is connected through the second base near the side of the protective cylinder; the driving square column and the second base are slidably engaged; a driving limiting plate is connected to the end of the driving square column away from the protective cylinder; a driving square seat is connected to the end of the driving square column near the protective cylinder, and its opening faces the protective cylinder. A rubber drive wheel is installed inside the opening of the drive seat; the outer wall of the casing is located on the movement path of the rubber drive wheel, and the rubber drive wheel contacts the casing earlier than the elastic drive wheel; A drive spring is sleeved on a drive square post; one end of the drive spring is fixedly connected to the drive square seat, and the other end is fixedly connected to the second base.

4. A long spiral bored pile for easy installation of an all-steel casing, as described in claim 1, is characterized in that: It includes a driven rack; the two driven racks are located on both sides of the driven gear and mesh with each other; each of the two driven racks is provided with a guide rail on the opposite side; The third base is installed on the top of the displacement platform; the guide rail is connected to the third base, and the two are slidably engaged. Driven bending columns; one end of each of the two driven bending columns is connected to a driven rack, and the other end is connected to a two anti-movement horizontal plate; the two anti-movement horizontal plates are symmetrically arranged with the center of the protective cylinder as the axis of symmetry; the anti-movement horizontal plate and the positioning horizontal plate are arranged on the same side.

5. A long spiral bored pile with easy installation of all-steel casing as described in claim 4, characterized in that: A set of anti-movement square tubes is provided on each of the two anti-movement horizontal plates on opposite sides; The anti-moving square column is connected inside the anti-moving square tube, and the two are slidably fitted together; an anti-moving arc block is installed at the end of the anti-moving square column near the protective tube, and an energy-absorbing low-resistance pad is provided on the inner wall of the anti-moving arc block, and the outer wall of the protective tube is located on the moving path of the energy-absorbing low-resistance pad. An anti-motion spring is located inside the anti-motion square tube; one end of the anti-motion spring is fixedly connected to the anti-motion square column, and the other end is fixedly connected to the bottom surface inside the anti-motion square tube.

6. A long spiral bored pile for easy installation of an all-steel casing, as described in claim 3, is characterized in that: Includes a power motor, which is mounted at the bottom of the first base; A displacement threaded shaft is mounted on the top of the first base; the output end of the power motor is connected to the displacement threaded shaft. The displacement hexagonal block is threadedly connected to the displacement threaded shaft; Displacement slide bar; one end of the displacement slide bar is fixedly connected to the displacement hexagonal block, and the other end extends through to the bottom of the first base; the displacement slide bar and the first base are in sliding fit. Active bending columns; one end of each of the two active bending columns is connected to a displacement hexagonal block, and the other end is connected to two positioning horizontal plates respectively; The active gear frame is mounted on the displacement hexagonal block and is vertically arranged; the compound gear is located inside the active gear frame and the two are meshed together.

7. A long spiral bored pile for easy installation of an all-steel casing, as described in claim 5, is characterized in that: Includes the first bevel tooth, which is installed at the end of the repeating shaft away from the repeating base plate; An active rotating shaft is connected to the top of the displacement base; a second bevel gear is connected to the active rotating shaft, which meshes with the first bevel gear; a compound rotating disk is connected to the end of the active rotating shaft away from the displacement base; a compound rotating column is connected to the top of the compound rotating disk. A repeating long block is located at the top of the repeating turntable; a repeating groove is provided on the side of the repeating long block near the repeating turntable; a repeating column is located in the repeating groove and the two are slidably engaged; a guide cylinder is installed on one side of the repeating long block and is connected through it to the repeating base plate; the guide cylinder and the repeating base plate are slidably engaged; a driven gear frame is installed on the other side of the repeating long block and is horizontally arranged; a drive gear is connected to the end of the driven rotating shaft away from the displacement base, which is located in the driven gear frame and the two are meshed.

8. A long spiral bored pile with easy installation of all-steel casing as described in claim 1, characterized in that: The device includes a bent square tube, the input pipe of which is installed on the anti-moving square tube and the two are connected; the output end of the bent square tube faces the protective tube, the input end of the T-shaped pipe is located at the moving path of the output end of the bent square tube, and the two are connected after docking; a B valve is provided inside the bent square tube; a B contact piece is provided at both the input end of the T-shaped pipe and the output end of the bent square tube. A bent circular tube is installed at one end on the top of a T-shaped pipe and at the other end facing the protective sleeve, with a limiting cylinder slidably connected inside; a fourth base is installed on the outer wall of the bent circular tube and is mounted on the T-shaped pipe; an active plate is connected to the end of the limiting cylinder near the protective sleeve. A limiting spring is sleeved on a limiting cylinder; one end of the limiting spring is fixedly connected to the fourth base, and the other end is fixedly connected to the active plate.

9. A long spiral bored pile for easy installation of an all-steel casing as described in claim 8, characterized in that: It includes a U-shaped base, which is installed on the side of the drive limiting plate; a guide cylinder is fixedly installed inside the U-shaped base; The driven plate is slidably connected to the guide cylinder; a guide spring is sleeved on the guide cylinder; one end of the guide spring is fixedly connected to the driven plate, and the other end is fixedly connected to the U-shaped base.

10. A long spiral bored pile for easy installation of an all-steel casing as described in claim 9, characterized in that: The driven plate is located on the side away from the protective sleeve along the moving path of the active plate.

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