A large-diameter pile foundation reinforcement cage lowering frame

Abstract

The application provides a large-diameter pile foundation reinforcement cage lowering frame, and belongs to the technical field of pile foundation construction supporting equipment, which comprises a frame, a reinforcement sleeve arranged between the inner walls of the frame, and an adjusting mechanism arranged between the inner walls of the frame and connected with the reinforcement sleeve to move the reinforcement sleeve, two lifting blocks are guided and moved through the sliding cooperation of four rail blocks and four rail grooves, thereby ensuring the stable lifting of the two lifting blocks, the two lifting blocks drive the limiting assembly, the driving assembly, the rotating assembly and the reinforcement sleeve to stably lift through parallel lifting, the reinforcement sleeve drives the bottom of the reinforcement cage to abut and dock with the pile hole through lifting, which facilitates the accurate lowering of the reinforcement cage into the pile hole, avoids the misalignment of the reinforcement cage and the pile hole due to wind deviation during the hoisting of the reinforcement cage, enables the reinforcement cage to be quickly and accurately lowered into the pile hole, accelerates the lowering speed of the reinforcement cage, and improves the pile foundation construction efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of pile foundation construction supporting equipment, specifically relating to a large-diameter pile foundation steel cage lowering frame. Background Technology

[0002] Large-diameter pile foundations refer to pile foundations with a diameter greater than or equal to 800 mm. These foundations are typically used in large buildings, bridges, and high-rise buildings to withstand greater loads and pressures, improving structural stability and safety. The design and construction requirements for large-diameter pile foundations are more stringent than those for ordinary pile foundations, requiring consideration of more factors such as the pile's bearing capacity, settlement and deformation, and construction methods. Furthermore, the construction of large-diameter pile foundations is more challenging, requiring advanced technology and equipment. Specialized construction methods and equipment, such as rotary drilling rigs and impact drills, are necessary during construction. To ensure the load-bearing capacity and stability of the pile foundation, more stringent construction quality control measures, such as real-time monitoring and quality inspection, are required.

[0003] A rebar cage lowering frame is a device used to place and fix rebar cages. It is mainly used in the pile foundation construction of building projects such as bridges and highways. Its main function is to ensure the accurate position of the rebar cage in the pile foundation construction and maintain its stability so that subsequent work such as concrete pouring can be carried out. The rebar cage lowering frame is usually composed of multiple rods and connectors to provide auxiliary guidance and support for the rebar cage.

[0004] Existing rebar cage lowering frames typically use steel frame structures and steel rope traction to guide the movement of the rebar cage. However, due to the lack of adjustment function in existing rebar cage lowering frames, the rebar cage cannot be lowered into the pile hole quickly and accurately, which increases the construction time for lowering the rebar cage and reduces the overall construction efficiency of the pile foundation. Therefore, we propose a large-diameter pile foundation rebar cage lowering frame. Summary of the Invention

[0005] The purpose of this invention is to provide a large-diameter pile foundation steel cage lowering frame, which aims to solve the problem that the existing steel cage lowering frame is limited by the lack of adjustment function, which makes it impossible to quickly and accurately lower the steel cage into the pile hole, resulting in increased construction time for lowering the steel cage and a decrease in the overall construction efficiency of the pile foundation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A frame for lowering a large-diameter pile foundation steel cage, including a frame;

[0008] Rebar sleeves, wherein the rebar sleeves are disposed between the inner walls of the frame; and

[0009] An adjustment mechanism is provided between the inner walls of the frame and is connected to the steel reinforcement sleeve for moving the steel reinforcement sleeve.

[0010] In a preferred embodiment of the present invention, the adjusting mechanism is provided with a driving component, a limiting component, a rotating component, a locking component, and a lifting component. Two sets of lifting components are provided, with the two sets positioned between the inner walls of the frame. The rotating component is positioned between the inner walls of the frame and connected to the reinforcing bar sleeve. The driving component is positioned between the inner walls of the frame and connected to one set of lifting and rotating components. The limiting component is positioned between the inner walls of the frame and connected to the other set of lifting and rotating components. The locking component is positioned on the circumferential surface of the reinforcing bar sleeve.

[0011] In a preferred embodiment of the present invention, each lifting assembly includes a lifting frame, a lifting block, a lead screw, a lifting motor, a buffer rod, a rail groove, and a rail block. The lifting frame is fixedly connected to the inner walls of the frame. The lead screw is rotatably connected to the inner walls of the lifting frame, with one end of the lead screw extending to the top of the lifting frame. The lifting block is fitted onto the circumferential surface of the lead screw. The lifting motor is fixedly connected to the top of the lifting frame, and its output end is connected to the lead screw. Two rail grooves are provided, located at the two sides of the lifting frame and communicating with the inner walls of the lifting frame. Two rail blocks are provided, sliding between the inner walls of the two rail grooves and connected to the lifting block. Two buffer rods are provided, fixedly connected to the bottom of the lifting block and located between the inner walls of the frame.

[0012] In a preferred embodiment of the present invention, the rotating assembly includes a rotating sleeve, a bearing, a second driven gear, a second gear cover, a second driving gear, and a rotating motor. The rotating sleeve is fitted onto the circumferential surface of the reinforcing bar sleeve, and the rotating sleeve and the reinforcing bar sleeve are rotatably connected via the bearing. The second gear cover is fixedly connected to the side end of the rotating sleeve. The second driven gear is fixedly connected to the circumferential surface of the reinforcing bar sleeve, and the second driven gear is located between the inner walls of the second gear cover. The second driving gear is disposed between the inner walls of the second gear cover, and the second driving gear meshes with the second driven gear. The rotating motor is fixedly connected to the bottom of the second gear cover, and the output end of the rotating motor extends to the inner walls of the second gear cover, and the output end of the rotating motor is fixedly connected to the second gear cover.

[0013] In a preferred embodiment of the present invention, the driving assembly includes a first gear cover, a first driven gear, a first driving gear, a drive motor, and a toggle shaft. The toggle shaft is fixedly connected between the lifting block and the rotating sleeve. The first gear cover is sleeved on the circumferential surface of the toggle shaft and is fixedly connected to the lifting block. The first driven gear is fixedly connected to the circumferential surface of the toggle shaft. The first driving gear is disposed between the inner walls of the first gear cover and meshes with the first driven gear. The drive motor is fixedly connected to one side end of the lifting block, and the output end of the drive motor extends to the inner walls of the first gear cover. The output end of the drive motor is fixedly connected to the first driving gear.

[0014] In a preferred embodiment of the present invention, the limiting assembly includes a limiting shaft, a ratchet cover, a ratchet, a slide groove, a limiting groove, a pawl, a slider, a first electric push rod, and a limiting block. The limiting shaft is fixedly connected between the lifting block and the rotating sleeve. The ratchet cover is sleeved on the circumferential surface of the limiting shaft and is fixedly connected to the lifting block. The ratchet is fixedly connected to the circumferential surface of the limiting shaft. The slide groove is opened at the side end of the lifting block, and the slider slides between the inner walls of the slide groove. There are two limiting grooves, each opened at one of the two side ends of the lifting block and connected to the slide groove. There are two limiting blocks, each sliding between the inner walls of the two limiting grooves and connected to the slider. The pawl is located between the inner walls of the ratchet cover and is fixedly connected to the slider. The pawl engages with the ratchet. The first electric push rod is fixedly connected to the side end of the lifting block, and its output end is connected to the slider.

[0015] In a preferred embodiment of the present invention, the snap-fit ​​assembly includes a fixing block, a second electric push rod, a telescopic groove, and a locking block. Two fixing blocks are provided, fixedly connected to the circumferential surface of the rebar sleeve. Two telescopic grooves are provided, formed between the inner walls of the rebar sleeve, corresponding to the two fixing blocks. Two locking blocks are provided, sliding between the inner walls of the two telescopic grooves. Two second electric push rods are provided, fixedly connected to the side ends of the two fixing blocks, with their output ends extending between the inner walls of the two telescopic grooves. The output ends of the two second electric push rods are fixedly connected to the two locking blocks.

[0016] In a preferred embodiment of the present invention, a top guide frame is fixedly connected to the top of the frame, and a bottom positioning frame is fixedly connected to the bottom of the frame. The top guide frame, the reinforcing bar sleeve, and the bottom positioning frame are located on the same vertical axis.

[0017] As a preferred embodiment of the present invention, a running terminal is fixedly connected to the top of one of the lifting frames, and two positioning cameras are fixedly connected to the top of the bottom positioning frame. The two positioning cameras are diagonally distributed on the top of the bottom positioning frame, and both positioning cameras are focused between the steel bar sleeve and the bottom positioning frame. Both positioning cameras are electrically connected to the running terminal.

[0018] As a preferred embodiment of the present invention, a plurality of casters are fixedly connected to the bottom of the frame, and the plurality of casters are distributed at the four corners of the bottom of the frame.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this scheme, during the lifting and lowering of the rebar sleeve, two lifting motors are simultaneously activated. The two lifting motors drive two lead screws to rotate. The two lead screws, through sliding engagement with two lifting blocks, push the two lifting blocks to rise and fall within two lifting frames. The two lifting blocks are guided by the sliding engagement of four rail blocks and four rail grooves, thereby ensuring the smooth lifting and lowering of the two lifting blocks. The two lifting blocks, through parallel lifting and lowering, drive the limiting component, driving component, rotating component, and rebar sleeve to rise and fall smoothly. The lifting and lowering of the rebar sleeve controls the bottom of the rebar cage to fit and connect with the pile hole, facilitating the precise lowering of the rebar cage into the pile hole. This avoids misalignment of the rebar cage with the pile hole due to wind deviation during the hoisting process, enabling the rebar cage to be lowered into the pile hole quickly and accurately, accelerating the lowering speed of the rebar cage, and improving the efficiency of pile foundation construction.

[0021] 2. In this scheme, when the bottom of the reinforcing cage is misaligned with the pile hole due to its own deformation, two locking blocks are inserted into the gap of the reinforcing cage. The motor is then powered on and rotated. The output of the motor drives the second driving gear to rotate. The second driving gear, through meshing with the second driven gear, drives the second driven gear to rotate. The second driven gear drives the reinforcing sleeve to rotate, and the reinforcing sleeve drives the reinforcing cage to rotate, so that the bottom of the reinforcing cage is quickly aligned with the pile hole, shortening the calibration time between the bottom of the reinforcing cage and the pile hole and improving the efficiency of pile foundation construction.

[0022] 3. In this scheme, when the bottom of the reinforcing cage deflects, the drive motor is started by powering on. The output end of the drive motor drives the first driving gear to rotate. The first driving gear drives the first driven gear to rotate through meshing with the first driven gear. The first driven gear drives the actuating shaft to deflect, which in turn causes the reinforcing sleeve and the rotating sleeve to deflect with the limiting shaft and the actuating shaft as support shafts. The deflection of the reinforcing sleeve causes the bottom of the reinforcing cage to align with the axial direction of the pile hole, avoiding misalignment between the reinforcing cage and the pile hole caused by the bottom deflection of the reinforcing cage, and reducing the difficulty of pile foundation construction caused by the deflection of the reinforcing cage.

[0023] 4. In this scheme, when the rebar cage is located between the inner walls of the rebar sleeve, the two second electric push rods are activated by power. The output ends of the two second electric push rods push the two locking blocks out of the two telescopic grooves, so that the two locking blocks are inserted into the rebar cage with a gap, thereby fixing the rebar cage in place, preventing the rebar cage from falling off, and facilitating the adjustment of the deflection of the bottom of the rebar cage. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a first-view view of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0026] Figure 2 This is a second-view view of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0027] Figure 3 This is a first half-slope diagram of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0028] Figure 4 This is a second half-sectional view of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0029] Figure 5 This is a third half-sectional view of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0030] Figure 6 This invention relates to a large-diameter pile foundation reinforcement cage lowering frame. Figure 5 Enlarged view of A;

[0031] Figure 7 This is a fourth half-sectional view of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0032] Figure 8 This is the fifth half-sectional view of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0033] Figure 9 This is a sixth half-sectional view of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0034] Figure 10 This is a seventh half-sectional view of a large-diameter pile foundation steel cage lowering frame according to the present invention;

[0035] Figure 11 This is a first exploded view of the adjustment mechanism of the large-diameter pile foundation steel cage lowering frame of the present invention;

[0036] Figure 12 This is a second exploded view of the adjustment mechanism of the large-diameter pile foundation steel cage lowering frame of the present invention.

[0037] In the diagram: 1. Frame; 2. Bottom positioning frame; 3. Top guide frame; 4. Lifting frame; 5. Lifting block; 6. Lead screw; 7. Lifting motor; 8. Buffer rod; 9. Rail groove; 10. Rail block; 11. First gear cover; 12. First driven gear; 13. First driving gear; 14. Drive motor; 15. Actuating shaft; 16. Limiting shaft; 17. Ratchet cover; 18. Ratchet; 19. Slide groove; 20. Limiting groove; 21. Pawl; 22. Slider; 23. First electric push rod; 24. Limiting block; 25. Rotating sleeve; 26. Bearing; 27. Second driven gear; 28. Second gear cover; 29. ​​Second driving gear; 30. Rotating motor; 31. Rebar sleeve; 32. Fixing block; 33. Second electric push rod; 34. Telescopic groove; 35. Locking block; 36. Positioning camera; 37. Running terminal; 38. Universal wheel. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] Reference Figure 1 - Figure 12 A large-diameter pile foundation reinforcement cage lowering frame includes:

[0041] Framework 1;

[0042] Rebar sleeves 31 are provided between the inner walls of frame 1; and

[0043] An adjustment mechanism is installed between the inner walls of the frame 1 and is connected to the steel bar sleeve 31 to move the steel bar sleeve 31.

[0044] In this invention, the frame 1 is used to accommodate the support and fixing adjustment mechanism. The steel bar sleeve 31 rotates and swings the lower end of the steel bar cage by rotating and turning, so that the bottom of the steel bar cage is aligned with the pile hole. The adjustment mechanism is connected to the steel bar sleeve 31 to move the steel bar sleeve 31.

[0045] The adjustment mechanism includes a drive assembly, a limit assembly, a rotation assembly, a locking assembly, and a lifting assembly. There are two sets of lifting assemblies, which are located between the inner walls of the frame 1. The rotation assembly is located between the inner walls of the frame 1 and is connected to the rebar sleeve 31. The drive assembly is located between the inner walls of the frame 1 and is connected to one set of lifting and rotation assemblies. The limit assembly is located between the inner walls of the frame 1 and is connected to the other set of lifting and rotation assemblies. The locking assembly is located on the circumferential surface of the rebar sleeve 31.

[0046] In this invention, two sets of lifting components are used to smoothly lift and lower the rebar sleeve 31, a rotating component is used to rotate the rebar sleeve 31, a driving component is used to swing the rebar sleeve 31, a limiting component is used to lock and fix the swing of the rebar sleeve 31, and a locking component is used to position and lock the rebar cage.

[0047] Each lifting assembly includes a lifting frame 4, a lifting block 5, a lead screw 6, a lifting motor 7, a buffer rod 8, a rail groove 9, and a rail block 10. The lifting frame 4 is fixedly connected to the inner wall of the frame 1. The lead screw 6 is rotatably connected to the inner wall of the lifting frame 4, with one end of the lead screw 6 extending to the top of the lifting frame 4. The lifting block 5 is fitted onto the circumferential surface of the lead screw 6. The lifting motor 7 is fixedly connected to the top of the lifting frame 4, and the output end of the lifting motor 7 is connected to the lead screw 6. There are two rail grooves 9, which are located at the two sides of the lifting frame 4 and are connected to the inner wall of the lifting frame 4. There are two rail blocks 10, which slide between the inner walls of the two rail grooves 9 and are connected to the lifting block 5. There are two buffer rods 8, which are fixedly connected to the bottom of the lifting block 5 and are located between the inner walls of the frame 1.

[0048] In this invention, the lifting frame 4 accommodates the lead screw 6 and the lifting block 5. The lead screw 6 slides with the lifting block 5 to push the lifting block 5 up and down within the lifting frame 4. The lifting block 5 supports and fixes two buffer rods 8. The lifting motor 7 drives the lead screw 6 to rotate. The two rail grooves 9 accommodate the sliding of two rail blocks 10. The two rail blocks 10 guide the lifting block 5 up and down through sliding with the two rail grooves 9. The two buffer rods 8 assist in supporting the lifting block 5 to buffer it. The two lifting blocks 5 in the two sets of lifting components support and fix the actuating shaft 15, the limiting shaft 16, and the drive motor 14. During the lifting of the rebar sleeve 31, the two lifting motors 7 are simultaneously energized and started. The two lifting motors 7 drive the lifting block 5 to rotate. The two lead screws 6 are rotated, and the two lead screws 6 push the two lifting blocks 5 to rise and fall within the two lifting frames 4 through the sliding cooperation of the two lifting blocks 5. The two lifting blocks 5 are guided to move through the sliding cooperation of the four rail blocks 10 and the four rail grooves 9, thereby ensuring the smooth rise and fall of the two lifting blocks 5. The two lifting blocks 5 drive the limiting component, driving component, rotating component and rebar sleeve 31 to rise and fall smoothly through parallel lifting and falling. The rebar sleeve 31 drives the bottom of the rebar cage to fit and connect with the pile hole through lifting and falling, which facilitates the accurate lowering of the rebar cage into the pile hole and avoids the rebar cage from being misaligned with the pile hole due to wind deviation during the hoisting process. This allows the rebar cage to be lowered into the pile hole quickly and accurately, speeding up the lowering speed of the rebar cage and improving the efficiency of pile foundation construction.

[0049] The rotating assembly includes a rotating sleeve 25, a bearing 26, a second driven gear 27, a second gear cover 28, a second driving gear 29, and a rotating motor 30. The rotating sleeve 25 is fitted onto the circumferential surface of the reinforcing bar sleeve 31, and the rotating sleeve 25 and the reinforcing bar sleeve 31 are rotatably connected via the bearing 26. The second gear cover 28 is fixedly connected to the side end of the rotating sleeve 25. The second driven gear 27 is fixedly connected to the circumferential surface of the reinforcing bar sleeve 31, and the second driven gear 27 is located between the inner walls of the second gear cover 28. The second driving gear 29 is disposed between the inner walls of the second gear cover 28, and the second driving gear 29 meshes with the second driven gear 27. The rotating motor 30 is fixedly connected to the bottom of the second gear cover 28, and the output end of the rotating motor 30 extends to the inner walls of the second gear cover 28. The output end of the rotating motor 30 is fixedly connected to the second gear cover 28.

[0050] In this invention, the rotating sleeve 25 supports and fixes the reinforcing bar sleeve 31 via the bearing 26. The second gear cover 28 accommodates the second driven gear 27 and the second driving gear 29. The second driven gear 27 rotates to drive the reinforcing bar sleeve 31 to rotate, and the second driving gear 29 meshes with the second driven gear 27 to drive the second driven gear 27 to rotate, facilitating the second driven gear 27 to drive the reinforcing bar sleeve 31 to rotate. The rotating motor 30 drives the second driving gear 29 to rotate, thereby providing torque for the rotation of the reinforcing bar sleeve 31. When the reinforcing bar cage deforms... When the bottom of the reinforcing cage is misaligned with the pile hole, two locking blocks 35 are inserted into the gap of the reinforcing cage. The rotating motor 30 is started by powering on and rotates. The output end of the rotating motor 30 drives the second driving gear 29 to rotate. The second driving gear 29 drives the second driven gear 27 to rotate through meshing with the second driven gear 27. The second driven gear 27 drives the reinforcing sleeve 31 to rotate. The reinforcing sleeve 31 drives the reinforcing cage to rotate, so that the bottom of the reinforcing cage is quickly aligned with the pile hole, shortening the calibration time between the bottom of the reinforcing cage and the pile hole and improving the efficiency of pile foundation construction.

[0051] The drive assembly includes a first gear cover 11, a first driven gear 12, a first driving gear 13, a drive motor 14, and a toggle shaft 15. The toggle shaft 15 is fixedly connected between the lifting block 5 and the rotating sleeve 25. The first gear cover 11 is sleeved on the circumferential surface of the toggle shaft 15 and is fixedly connected to the lifting block 5. The first driven gear 12 is fixedly connected to the circumferential surface of the toggle shaft 15. The first driving gear 13 is disposed between the inner walls of the first gear cover 11 and meshes with the first driven gear 12. The drive motor 14 is fixedly connected to one side end of the lifting block 5. The output end of the drive motor 14 extends to the inner walls of the first gear cover 11 and is fixedly connected to the first driving gear 13.

[0052] In this invention, the actuating shaft 15 is used to support and fix the rotating sleeve 25, the first gear cover 11 is used to accommodate the first driven gear 12 and the first driving gear 13, the first driven gear 12 is used to drive the actuating shaft 15 to deflect, and the first driving gear 13 drives the first driven gear 12 to deflect through meshing with the first driven gear 12, and the drive motor 14 is used to drive the first driving gear 13 to rotate. When the bottom of the reinforcing cage deflects, the drive motor 14 is energized and started, and the output end of the drive motor 14 drives... The first driving gear 13 rotates, and the first driven gear 12 rotates through meshing with the first driven gear 12. The first driven gear 12 drives the actuating shaft 15 to deflect, which in turn causes the steel bar sleeve 31 and the rotating sleeve 25 to deflect with the limiting shaft 16 and the actuating shaft 15 as support shafts. The deflection of the steel bar sleeve 31 causes the bottom of the steel cage to align with the pile hole axially, avoiding misalignment between the steel cage and the pile hole due to the bottom of the steel cage being bent, and reducing the difficulty of pile foundation construction caused by the bending of the steel cage.

[0053] The limiting assembly includes a limiting shaft 16, a ratchet cover 17, a ratchet 18, a slide groove 19, a limiting groove 20, a pawl 21, a slider 22, a first electric push rod 23, and a limiting block 24. The limiting shaft 16 is fixedly connected between the lifting block 5 and the rotating sleeve 25. The ratchet cover 17 is sleeved on the circumferential surface of the limiting shaft 16 and is fixedly connected to the lifting block 5. The ratchet 18 is fixedly connected to the circumferential surface of the limiting shaft 16. The slide groove 19 is opened at the side end of the lifting block 5, and the slider 22 slides between the inner walls of the slide groove 19. The limiting groove 20 is provided with... Two limiting grooves 20 are provided on the two sides of the lifting block 5. Both limiting grooves 20 are connected to the sliding groove 19. Two limiting blocks 24 are provided. The two limiting blocks 24 slide between the inner walls of the two limiting grooves 20. Both limiting blocks 24 are connected to the slider 22. The pawl 21 is provided between the inner walls of the ratchet cover 17. The pawl 21 is fixedly connected to the slider 22. The pawl 21 is engaged with the ratchet 18. The first electric push rod 23 is fixedly connected to the side of the lifting block 5. The output end of the first electric push rod 23 is connected to the slider 22.

[0054] In this invention, the limiting shaft 16 supports the rotating sleeve 25, the ratchet cover 17 accommodates the ratchet 18 and the pawl 21, the ratchet 18 rotates synchronously with the limiting shaft 16, the slide groove 19 accommodates the sliding of the slider 22, the slider 22 supports and fixes the pawl 21, and the slider 22 drives the pawl 21 to move, thereby controlling the pawl 21 to move closer to or away from the ratchet 18. The two limiting grooves 20 are designed to accommodate the sliding of the two limiting blocks 24, which guide the movement of the slider 22 through sliding engagement with the two sliders 22. The pawl 21 deflects the limiting shaft 16 through meshing with the ratchet 18. The deflection angle of the rebar sleeve 31 is locked to achieve positioning and locking. The first electric push rod 23 is used to push the slider 22 to move in parallel. When the rebar sleeve 31 drives the bottom of the rebar cage to align with the pile hole axially through deflection, the first electric push rod 23 is started by power. The output end of the first electric push rod 23 pushes the slider 22 to move in parallel. The slider 22 pushes the pawl 21 to engage with the ratchet 18. Then, the pawl 21 locks the deflection angle of the rotating sleeve 25 through engagement with the ratchet 18, thereby locking the deflection angle of the rebar sleeve 31 and ensuring that the bottom of the rebar cage is aligned with the pile hole, so that the rebar cage is vertically and stably lowered into the pile hole.

[0055] The snap-fit ​​assembly includes a fixing block 32, a second electric push rod 33, a telescopic groove 34, and a locking block 35. There are two fixing blocks 32, which are fixedly connected to the circumferential surface of the rebar sleeve 31. There are two telescopic grooves 34, which are formed between the inner walls of the rebar sleeve 31 and correspond to the two fixing blocks 32. There are two locking blocks 35, which slide between the inner walls of the two telescopic grooves 34. There are two second electric push rods 33, which are fixedly connected to the side ends of the two fixing blocks 32. The output ends of the two second electric push rods 33 extend between the inner walls of the two telescopic grooves 34 and are fixedly connected to the two locking blocks 35.

[0056] In this invention, two fixing blocks 32 are used to support and fix two second electric push rods 33, and two telescopic grooves 34 are used to accommodate the telescopic sliding of two locking blocks 35. The two locking blocks 35 are inserted into the gap of the rebar cage. The two second electric push rods 33 drive the two locking blocks 35 to move through the telescopic movement of their output ends, so that the two locking blocks 35 move telescopically within the two telescopic grooves 34. When the rebar cage is located between the inner walls of the rebar sleeve 31, the two second electric push rods 33 are energized and activated. The output ends of the two second electric push rods 33 push the two locking blocks 35 out of the two telescopic grooves 34, so that the two locking blocks 35 are inserted into the gap of the rebar cage, thereby fixing the rebar cage and preventing it from falling off, and facilitating the adjustment of the deflection of the bottom of the rebar cage.

[0057] The top of frame 1 is fixedly connected to a top guide frame 3, and the bottom of frame 1 is fixedly connected to a bottom positioning frame 2. The top guide frame 3, the steel bar sleeve 31, and the bottom positioning frame 2 are on the same vertical axis.

[0058] In this invention, the top guide frame 3 is used to guide the rebar cage into the rebar sleeve 31, and the bottom positioning frame 2 is used to align with the pile hole. The top guide frame 3, the rebar sleeve 31 and the bottom positioning frame 2 are on the same vertical axis, ensuring that the rebar cage can move up and down with the top guide frame 3, the rebar sleeve 31 and the bottom positioning frame 2.

[0059] A running terminal 37 is fixedly connected to the top of a lifting frame 4, and two positioning cameras 36 are fixedly connected to the top of the bottom positioning frame 2. The two positioning cameras 36 are diagonally distributed on the top of the bottom positioning frame 2. Both positioning cameras 36 are focused between the steel bar sleeve 31 and the bottom positioning frame 2. Both positioning cameras 36 are electrically connected to the running terminal 37.

[0060] In this invention, the operating terminal 37 is assembled by purchasing electronic components from the market according to actual needs. Two positioning cameras 36 are used to capture the bottom position diagram of the steel cage between the steel sleeve 31 and the bottom positioning frame 2, so as to collect the displacement data of the bottom of the steel cage in real time and improve the docking accuracy between the bottom of the steel cage and the pile hole.

[0061] Multiple casters 38 are fixedly connected to the bottom of frame 1, and the multiple casters 38 are distributed at the four corners of the bottom of frame 1.

[0062] In this invention, multiple casters 38 are used to support the fixed frame 1 and provide the frame 1 with the function of moving.

[0063] A method for using a large-diameter pile foundation reinforcement cage lowering frame includes the following steps:

[0064] S1. Snap-fit ​​fixation:

[0065] The steel cage is hoisted and moved into the top guide frame 3. The steel cage falls into the steel sleeve 31 along the top guide frame 3. The two second electric push rods 33 are energized and started. The output ends of the two second electric push rods 33 push the two locking blocks 35 to retract and move in the two telescopic grooves 34, so that the two locking blocks 35 are inserted into the gap of the steel cage, thereby realizing the locking and fixing of the steel cage.

[0066] S2, Positioning Calibration:

[0067] When the reinforcing cage is clamped and fixed inside the reinforcing sleeve 31, the bottom of the reinforcing cage is deflected and rotated to align the bottom of the reinforcing cage with the axial direction of the pile hole, thereby achieving the positioning calibration of the bottom of the reinforcing cage with the axis of the pile hole.

[0068] S2-1, Rotational Positioning:

[0069] When the bottom of the reinforcing cage is misaligned with the pile hole due to its own deformation, two locking blocks 35 are inserted into the gap of the reinforcing cage. The power is turned on to start the rotating motor 30 to rotate. The output end of the rotating motor 30 drives the second driving gear 29 to rotate. The second driving gear 29 drives the second driven gear 27 to rotate through meshing with the second driven gear 27. The second driven gear 27 drives the reinforcing sleeve 31 to rotate. The reinforcing sleeve 31 drives the reinforcing cage to rotate, so that the bottom of the reinforcing cage is quickly aligned with the pile hole, realizing the rotational positioning between the bottom of the reinforcing cage and the pile hole.

[0070] S2-2, Deflection Positioning:

[0071] When the bottom of the reinforcing cage deflects, the drive motor 14 is powered on and started. The output of the drive motor 14 drives the first driving gear 13 to rotate. The first driving gear 13, through meshing with the first driven gear 12, drives the first driven gear 12 to rotate. The first driven gear 12 drives the actuating shaft 15 to deflect, which in turn causes the reinforcing sleeve 31 and the rotating sleeve 25 to deflect with the limiting shaft 16 and the actuating shaft 15 as supporting shafts. The deflection of the reinforcing sleeve 31 causes the bottom of the reinforcing cage to align with the axial direction of the pile hole. When the steel bar sleeve 31 deflects and drives the bottom of the steel cage to align with the pile hole axially, the first electric push rod 23 is activated. The output end of the first electric push rod 23 pushes the slider 22 to move in parallel. The slider 22 pushes the pawl 21 to engage with the ratchet 18. Then, the pawl 21 locks the deflection angle of the rotating sleeve 25 by engaging with the ratchet 18, thereby locking the deflection angle of the steel bar sleeve 31. By deflecting the bottom of the steel cage, the deflection positioning between the bottom of the steel cage and the pile hole is achieved.

[0072] S4. Quick Deployment:

[0073] When the bottom of the reinforcing cage aligns with the axial direction of the pile hole, the two lifting motors 7 are activated. The output of the two lifting motors 7 drives the two lead screws 6 to rotate. The two lead screws 6, through sliding engagement with the two lifting blocks 5, push the two lifting blocks 5 to rise and fall within the two lifting frames 4. The two lifting blocks 5 are guided by the sliding engagement of four rail blocks 10 and four rail grooves 9, thereby ensuring the smooth rise and fall of the two lifting blocks 5. The two lifting blocks 5 drive the limiting component, driving component, rotating component and reinforcing steel sleeve 31 to rise and fall smoothly through parallel lifting. The reinforcing steel sleeve 31 controls the bottom of the reinforcing cage to fit and connect with the pile hole through lifting, which facilitates the precise lowering of the reinforcing cage into the pile hole and avoids the misalignment of the reinforcing cage and the pile hole caused by wind deviation during the lifting process, thus speeding up the lowering speed of the reinforcing cage and achieving rapid lowering of the reinforcing cage.

[0074] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A frame for lowering a large-diameter pile foundation steel cage, characterized in that, include; Framework (1); Rebar sleeves (31), said rebar sleeves (31) being disposed between the inner walls of the frame (1); and An adjustment mechanism is provided between the inner walls of the frame (1) and is connected to the steel bar sleeve (31) for moving the steel bar sleeve (31); The adjustment mechanism is provided with a drive component, a limit component, a rotation component, a snap-fit ​​component and a lifting component. The lifting component is provided in two sets, and the two sets of lifting components are located between the inner walls of the frame (1). The rotation component is located between the inner walls of the frame (1) and is connected to the steel sleeve (31). The drive component is located between the inner walls of the frame (1) and is connected to one set of lifting components and rotation components. The limit component is located between the inner walls of the frame (1) and is connected to another set of lifting components and rotation components. The snap-fit ​​component is located on the circumferential surface of the steel sleeve (31). Each lifting assembly includes a lifting frame (4), a lifting block (5), a lead screw (6), a lifting motor (7), a buffer rod (8), a rail groove (9), and a rail block (10). The lifting frame (4) is fixedly connected to the inner wall of the frame (1). The lead screw (6) is rotatably connected to the inner wall of the lifting frame (4), and one end of the lead screw (6) extends to the top of the lifting frame (4). The lifting block (5) is fitted onto the circumferential surface of the lead screw (6). The lifting motor (7) is fixedly connected to the top of the lifting frame (4). The output end of the lifting motor (7) is connected to the lead screw. The rods (6) are connected together. There are two rail grooves (9). The two rail grooves (9) are opened at the two sides of the lifting frame (4). The two rail grooves (9) are connected to the inner wall of the lifting frame (4). There are two rail blocks (10). The two rail blocks (10) slide between the inner walls of the two rail grooves (9). The two rail blocks (10) are connected to the lifting block (5). There are two buffer rods (8). The two buffer rods (8) are fixedly connected to the bottom of the lifting block (5). The two buffer rods (8) are located between the inner walls of the frame (1). The rotating assembly includes a rotating sleeve (25), a bearing (26), a second driven gear (27), a second gear cover (28), a second driving gear (29), and a rotating motor (30). The rotating sleeve (25) is fitted onto the circumferential surface of the reinforcing bar sleeve (31). The rotating sleeve (25) and the reinforcing bar sleeve (31) are rotatably connected via the bearing (26). The second gear cover (28) is fixedly connected to the side end of the rotating sleeve (25), and the second driven gear (27) is fixedly connected to the circumferential surface of the reinforcing bar sleeve (31). The second driven gear (27) is located between the inner walls of the second gear cover (28), and the second driving gear (29) is disposed between the inner walls of the second gear cover (28). The second driving gear (29) meshes with the second driven gear (27). The rotating motor (30) is fixedly connected to the bottom of the second gear cover (28), and the output end of the rotating motor (30) extends to the inner walls of the second gear cover (28). The output end of the rotating motor (30) is fixedly connected to the second gear cover (28). The drive assembly includes a first gear cover (11), a first driven gear (12), a first driving gear (13), a drive motor (14), and a toggle shaft (15). The toggle shaft (15) is fixedly connected between the lifting block (5) and the rotating sleeve (25). The first gear cover (11) is sleeved on the circumferential surface of the toggle shaft (15) and is fixedly connected to the lifting block (5). The first driven gear (12) is fixedly connected to the circumferential surface of the toggle shaft (15). The first driving gear (13) is disposed between the inner walls of the first gear cover (11) and meshes with the first driven gear (12). The drive motor (14) is fixedly connected to one side of the lifting block (5). The output end of the drive motor (14) extends to the inner walls of the first gear cover (11) and is fixedly connected to the first driving gear (13). The limiting assembly includes a limiting shaft (16), a ratchet cover (17), a ratchet (18), a slide groove (19), a limiting groove (20), a pawl (21), a slider (22), a first electric push rod (23), and a limiting block (24). The limiting shaft (16) is fixedly connected between the lifting block (5) and the rotating sleeve (25). The ratchet cover (17) is sleeved on the circumferential surface of the limiting shaft (16) and is fixedly connected to the lifting block (5). The ratchet (18) is fixedly connected to the circumferential surface of the limiting shaft (16). The slide groove (19) is opened at the side end of the lifting block (5). The slider (22) slides between the inner walls of the slide groove (19). The limiting groove (20) is provided with... There are two limiting grooves (20) on the two sides of the lifting block (5), and both limiting grooves (20) are connected to the sliding groove (19). There are two limiting blocks (24), and the two limiting blocks (24) slide between the inner walls of the two limiting grooves (20). Both limiting blocks (24) are connected to the slider (22). The pawl (21) is set between the inner walls of the ratchet cover (17). The pawl (21) is fixedly connected to the slider (22). The pawl (21) is engaged with the ratchet (18). The first electric push rod (23) is fixedly connected to the side of the lifting block (5). The output end of the first electric push rod (23) is connected to the slider (22). The snap-fit ​​assembly includes a fixing block (32), a second electric push rod (33), a telescopic groove (34), and a locking block (35). There are two fixing blocks (32), which are fixedly connected to the circumferential surface of the rebar sleeve (31). There are two telescopic grooves (34), which are opened between the inner walls of the rebar sleeve (31) and correspond to the two fixing blocks (32). There are two locking blocks (35), which slide between the inner walls of the two telescopic grooves (34). There are two second electric push rods (33), which are fixedly connected to the side ends of the two fixing blocks (32). The output ends of the two second electric push rods (33) extend to the inner walls of the two telescopic grooves (34) and are fixedly connected to the two locking blocks (35).

2. The large-diameter pile foundation reinforcement cage lowering frame according to claim 1, characterized in that, The top of the frame (1) is fixedly connected to a top guide frame (3), and the bottom of the frame (1) is fixedly connected to a bottom positioning frame (2). The top guide frame (3), the steel bar sleeve (31), and the bottom positioning frame (2) are on the same vertical axis.

3. The large-diameter pile foundation reinforcement cage lowering frame according to claim 2, characterized in that, A running terminal (37) is fixedly connected to the top of one of the lifting frames (4), and two positioning cameras (36) are fixedly connected to the top of the bottom positioning frame (2). The two positioning cameras (36) are diagonally distributed on the top of the bottom positioning frame (2). Both positioning cameras (36) are focused between the steel bar sleeve (31) and the bottom positioning frame (2). Both positioning cameras (36) are electrically connected to the running terminal (37).

4. The large-diameter pile foundation reinforcement cage lowering frame according to claim 3, characterized in that, The bottom of the frame (1) is fixedly connected with a plurality of casters (38), which are distributed at the four corners of the bottom of the frame (1).

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