Auxiliary solidification equipment for grouting of cast-in-place pile

Abstract

The invention relates to the technical field of cast-in-place pile grouting auxiliary solidification, in particular to cast-in-place pile grouting auxiliary solidification equipment which comprises an external base and a prefabricated cast-in-place pile tubular column, and the external base is fixedly connected to the upper end of the outer surface of the prefabricated cast-in-place pile tubular column. The grouting auxiliary mechanism is composed of a grouting guide pipe, a first motor, a gear, a gear ring, an annular rail, a sliding ring, a vibrating and rapid hardening assembly and an accelerator conveying system and is crucial for improving the grouting effect, during grouting, concrete enters the grouting guide pipe through a guide hopper and a material guide pipe and is injected into a prefabricated cast-in-place pile pipe column, meanwhile, the first motor is started, and the grouting effect is improved. An output shaft gear is meshed with a gear ring to drive a sliding ring to do circular motion in an annular rail, so that an outer side vibrating and rapid hardening assembly rotates, a vibrator and a vibrating bar rotate around a grouting guide pipe, after the vibrator is started, the vibrating bar vibrates at high frequency, the frequency can be adjusted according to needs, and the rotating and vibrating mode can fully cover concrete, discharge bubbles and improve compactness. Slurry polymerization is accelerated, and solidification is promoted.

Description

Technical Field

[0001] The present application relates to the technical field of cast-in-place pile grouting auxiliary solidification, and in particular to a cast-in-place pile grouting auxiliary solidification device. Background Art

[0002] In modern construction, cast-in-place piles, as an indispensable foundation type, are widely used in various projects due to their unique advantages. From towering high-rise buildings to bridges spanning rivers and seas, cast-in-place piles bear the critical load-bearing responsibility. Their construction principle involves first forming a hole in the foundation soil, then placing a steel cage to enhance the pile's tensile strength, and finally pouring concrete to form a solid pile structure. A variety of methods, including drilling, punching, and excavation, offer diverse options for construction under varying geological conditions. Whether it's bored cast-in-place piles in soft soil, where a rotary drill cuts a hole; or punched cast-in-place piles in complex geotechnical environments, where the powerful impact of a percussion drill creates a hole; or bored cast-in-place piles, where holes are manually or mechanically excavated, all demonstrate their excellent adaptability. Furthermore, cast-in-place piles can flexibly adjust their diameter, length, and layout to meet the specific load-bearing requirements of different building structures. They can transmit enormous loads in high-rise building foundations and withstand vehicle loads and water erosion in bridge construction, ensuring project safety. However, the current bored pile construction process has obvious deficiencies in the auxiliary solidification link. The existing auxiliary solidification measures mainly rely on adding accelerators to the bored piles. This traditional method has exposed many problems in practical applications. On the one hand, it is difficult to quickly and evenly integrate the accelerator into the bored piles. Due to the lack of effective auxiliary means in the addition process, the accelerator is unevenly distributed in the bored piles, resulting in deviations in the solidification process. Local rapid solidification and slow solidification in other parts often occur, seriously affecting the overall quality and stability of the pile body. On the other hand, simply adding accelerators cannot effectively eliminate the air bubbles and pores in the concrete. The presence of these air bubbles will reduce the density of the pile body, thereby affecting the strength and durability of the pile body, further aggravating the uneven rapid solidification of the pile body as a whole. In summary, the existing bored pile auxiliary solidification technology has defects and urgently needs to be improved in design to improve the construction quality of bored piles and ensure the safety and stability of construction projects. Summary of the Invention

[0003] In order to improve the rapid setting efficiency during the application of the existing technology, the present application provides a cast-in-place pile grouting auxiliary solidification equipment.

[0004] The present application provides a bored pile grouting auxiliary solidification device, which adopts the following technical solution: it includes an external base and a prefabricated bored pile pipe column, the external base is fixedly connected to the upper end of the outer surface of the prefabricated bored pile pipe column, the external base covers the top of the construction site foundation, the prefabricated bored pile pipe column is sunk into the foundation soil of the construction site, the top of the external base is fixed with a fixing frame by bolts, the fixing frame is arranged on the outside of the prefabricated bored pile pipe column, the top of the external base is fixedly installed with a pulling and hoisting mechanism, the bottom of the pulling and hoisting mechanism is hoisted and installed with a grouting auxiliary device, and the bottom of the grouting auxiliary device extends inside the prefabricated bored pile pipe column; The grouting auxiliary device includes a hanger, which is fixedly connected to the bottom of the traction and lifting mechanism. A top plate is fixedly installed on the bottom of the hanger, a quick-setting agent supply mechanism is fixedly installed on the top side of the top plate, a grouting conduit is fixedly installed in the middle of the top plate, a driving mechanism is fixedly installed on one side of the top plate, and a solidification auxiliary mechanism is movably installed on the outer surface of the grouting conduit.

[0005] Optionally, the solidification auxiliary mechanism includes an annular rail, which is fixedly installed on the upper end of the outer surface of the grouting conduit. The interior of the annular rail is slidably connected with a slip ring, the top of the slip ring is connected to the output end of the driving mechanism, and the outer side of the slip ring is fixedly installed with vibrating quick-setting components arranged in a ring at equal intervals.

[0006] Optionally, the driving mechanism includes a first motor and a gear ring, the first motor is fixedly mounted on the top side of the top plate away from the quick-setting agent supply mechanism, the output end of the first motor passes through the top plate and is fixedly connected to a connecting shaft, a gear is fixedly mounted on the bottom of the connecting shaft, the gear ring is fixedly mounted on the top of the slip ring, and the gear and the gear ring are meshed and connected.

[0007] Optionally, the vibrating quick-setting assembly includes side plates, which are arranged in a ring shape with equal intervals and fixedly installed on the outside of the slip ring. A vibrator is fixedly installed on the top of the side plate, and a vibrating rod is installed on the bottom of the vibrator.

[0008] Optionally, a fixed arm is fixedly installed on the outer side of the bottom of the side plate, an annular tube is fixedly installed on the bottom of the fixed arm, vertical pipes are fixedly connected to the outer side of the annular tube in an annular arrangement at equal intervals, the vertical pipes are connected to the fixed arm, and quick-setting agent discharge pipes are fixedly connected to the outer side of the vertical pipe in a linear arrangement at equal intervals, and the top input end of the annular tube is connected to the output end of the quick-setting agent supply mechanism.

[0009] Optionally, the quick-setting agent supply mechanism includes a mounting frame fixedly installed on one side of the top of the top cover. A tank body is fixedly installed on the top of the mounting frame. A water pump is fixedly installed at the output end of the bottom of the tank body. The input end of the water pump is communicated with the inside of the tank body. The output end of the water pump is fixedly installed with a connecting hose, and the output end of the connecting hose is communicated with the input end of the annular pipe.

[0010] Optionally, a material guiding pipe is fixedly installed at the input end of the grouting conduit. A guiding hopper is fixedly installed on the top of the material guiding pipe. The guiding hopper is integrally arranged in a conical shape. The top of the tank body is fixedly connected with a feeding pipe, and the top of the feeding pipe is threadedly connected with a sealing cover.

[0011] Optionally, the towing and hanging mechanism includes a towing and hanging frame fixedly installed on the top of an external base. Fixed disks are fixedly installed on both sides of the top of the towing and hanging frame. A winding shaft is rotatably connected between the inner sides of the fixed disks. A hanging steel cable is wound on the outer surface of the winding shaft. The bottom of the hanging steel cable is fixedly connected with the top of a hanging frame. A second motor is fixedly installed on the outside of one of the fixed disks. The output end of the second motor penetrates through the fixed disk and is fixedly connected with one end of the winding shaft. Both the first motor and the second motor are set as braking motors.

[0012] Optionally, support rods are fixedly installed at both ends of the inner side of the towing and hanging frame. A support fixing sleeve is slidably connected to the outer surface of the support rods. The inner side of the support fixing sleeve is fixedly connected with the outer side of the top plate.

[0013] Optionally, a fixing ring is fixedly installed on the outer surface of the second motor. A strengthening support is fixedly installed at the bottom of the fixing ring. The bottom of the strengthening support is fixedly connected with the outer side of the towing and hanging frame.

[0014] In summary, the present application includes the following beneficial technical effects: In the design of this equipment, by setting up the towing and hanging mechanism, the convenience of its subsequent maintenance and pre-grouting can be improved. By starting the second motor to drive the winding shaft inside the fixed disk to rotate, the winding shaft orderly winds the hanging steel cable through the spiral groove on the surface, so that the top plate connected to the end of the steel cable moves upward. The support fixing sleeve outside the top plate and the support rod form a stable guiding structure. One end of the support rod is hinged to the top plate, and the other end is embedded in the guide rail of the support fixing sleeve, ensuring the vertical and stable movement of the top plate. This mechanism can not only quickly withdraw the grouting auxiliary mechanism from the precast concrete pile tube column after construction for cleaning and maintenance, but also accurately fill it before construction, improving the construction efficiency. In addition, the fixing ring made of high-strength steel tightly sleeves the outer shell of the second motor and is connected to the equipment main body through bolts. The strengthening support in a shape of a slash is welded to the fixing ring at one end and fixed to the equipment base at the other end, enhancing the stability of the motor and extending its service life; This equipment optimizes the concrete injection process by combining a guide pipe and a guide bucket. The guide bucket adopts a funnel-shaped structure with a polished inner wall, which greatly reduces the resistance of concrete flow. The connection between the guide pipe and the guide bucket is designed to be tapered, which allows the concrete to form a stable flow rate before entering the grouting conduit. During the concrete injection process, it is first guided by the guide bucket, then flows into the grouting conduit through the guide pipe, and finally evenly injected into the interior of the prefabricated cast-in-place pile pipe column 2. This design effectively avoids problems such as blockage and unstable flow rate during the concrete injection process, ensuring that the concrete can enter the pipe column evenly and smoothly, providing a strong guarantee for the subsequent grouting construction quality and laying the foundation for the efficient implementation of the entire cast-in-place pile construction process. The grouting auxiliary mechanism of this equipment consists of a grouting conduit, a first motor, a gear, a gear ring, an annular rail, a slip ring, a vibrating and quick-setting component, and an accelerating-setting agent delivery system. It is of great significance to improving the grouting effect of the equipment. During grouting, concrete enters the grouting conduit through the guide bucket and the guide pipe, and is then injected into the prefabricated cast-in-place pile column. At the same time, the first motor is started, and the gear on the motor output shaft engages with the gear ring, driving the slip ring to perform circular motion in the annular rail. The vibrating and quick-setting component outside the slip ring rotates accordingly. The vibrator and vibrating rod in each component rotate around the grouting conduit. After the vibrator is started, the vibrating rod generates high-frequency vibration, and the vibration frequency can be adjusted according to the characteristics of the concrete. This rotation and vibration method can fully cover the concrete, expel bubbles, improve density, accelerate the slurry polymerization reaction, and promote solidification. The accelerator delivery system of this equipment consists of a tank, a water pump, a connecting hose, a ring pipe, a riser and an accelerator discharge pipe. Before construction, the accelerator is added to the tank through the feeding pipe and sealed to prevent leakage. During vibration, the water pump is turned on to extract the accelerator, which is then transported to the ring pipe surrounding the grouting conduit through the connecting hose, and then flows into the accelerator discharge pipes arranged at equal intervals through the riser, and finally evenly injected into the concrete. Since the accelerator discharge pipe rotates synchronously with the slip ring, the accelerator can be evenly distributed in the prefabricated cast-in-place pile column and fully mixed with the concrete. The synergistic effect of the accelerator and vibration greatly improves the solidification efficiency of the cast-in-place pile, reduces the strength differences and cracks caused by uneven solidification, significantly improves the overall quality of the cast-in-place pile, and ensures the stability of the building foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 This is a schematic diagram of the internal structure of a cast-in-place pile in an embodiment of the present application; Figure 3 This is a bottom-up structural diagram of the grouting auxiliary device in an embodiment of the present application; Figure 4 This is a schematic diagram of the top view of the grouting auxiliary device in an embodiment of the present application; Figure 5This is a schematic side view of the structure of the grouting auxiliary device in an embodiment of the present application; Figure 6 This is a schematic diagram of the structure of the pulling and hoisting mechanism in the embodiment of the present application; Figure 7 In the embodiment of this application Figure 2 A schematic diagram of the enlarged structure at point A; Figure 8 In the embodiment of this application Figure 5 Schematic diagram of the enlarged structure at point B.

[0016] Reference numerals: 1, external base; 2, prefabricated cast-in-place pile column; 3, fixed frame; 4, pulling and hanging mechanism; 41, pulling and hanging frame; 42, fixed plate; 43, reel; 44, hanging cable; 45, second motor; 46, support rod; 47, supporting sleeve; 48, fixing ring; 49, reinforcement bracket; 5, grouting auxiliary mechanism; 51, hanger; 52, top plate; 53, quick-setting agent supply mechanism; 531, mounting frame; 532, tank; 533, water pump; 534, connecting hose; 53 5. Feeding pipe; 536. Sealing cover; 54. Grouting conduit; 55. Driving mechanism; 551. First motor; 552. Gear ring; 553. Coupling shaft; 554. Gear; 56. Solidification auxiliary mechanism; 561. Annular rail; 562. Slip ring; 563. Vibrating and quick-setting assembly; 5631. Side plate; 5632. Vibrator; 5633. Vibrating rod; 5634. Fixed arm; 5635. Annular pipe; 5636. Accelerator discharge pipe; 5367. Vertical pipe; 6. Material guide pipe; 7. Guide bucket. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-8 This application is described in further detail.

[0018] The present application discloses a bored pile grouting auxiliary solidification device. Figure 1-8 As shown, it includes an external base 1 and a prefabricated cast-in-place pile pipe column 2, the external base 1 is fixedly connected to the upper end of the outer surface of the prefabricated cast-in-place pile pipe column 2, the external base 1 covers the top of the construction site foundation, the prefabricated cast-in-place pile pipe column 2 is sunk into the foundation soil of the construction site, the top of the external base 1 is fixed with a fixing frame 3 by bolts, the fixing frame 3 is arranged on the outside of the prefabricated cast-in-place pile pipe column 2, the top of the external base 1 is fixedly installed with a pulling and hoisting mechanism 4, the bottom of the pulling and hoisting mechanism 4 is hoisted and installed with a grouting auxiliary device, and the bottom of the grouting auxiliary device extends into the interior of the prefabricated cast-in-place pile pipe column 2; The grouting auxiliary device includes a hanger 51, which is fixedly connected to the bottom of the pulling and hanging mechanism 4. A top plate 52 is fixedly installed at the bottom of the hanger 51, and a quick-setting agent supply mechanism 53 is fixedly installed on the top side of the top plate 52. A grouting conduit 54 is fixedly installed in the middle of the top plate 52, and a driving mechanism 55 is fixedly installed on one side of the top plate 52. A solidification auxiliary mechanism 56 is movably installed on the outer surface of the grouting conduit 54. During the construction of the bored pile, when this equipment starts to work, the pulling and hanging mechanism 4 is started, and the grouting auxiliary device is accurately controlled to descend to a suitable position inside the prefabricated bored pile pipe column 2. During construction, the concrete The soil is injected into the pipe column through the grouting conduit 54, and the driving mechanism 55 operates to drive the solidification auxiliary mechanism 56 to move around the grouting conduit 54. The vibration generated by the solidification auxiliary mechanism 56 prompts the air bubbles inside the concrete to be discharged, improves the density, accelerates the polymerization of the slurry, and promotes solidification. At the same time, the quick-setting agent supply mechanism 53 is opened to evenly inject the pre-stored quick-setting agent into the concrete to further accelerate the solidification speed. After the construction is completed, the pulling and lifting mechanism 4 works to pull the grouting auxiliary device out of the pipe column for subsequent cleaning and maintenance work. The whole process is closely coordinated to improve the solidification efficiency and quality of the bored pile.

[0019] Please refer to Figure 1-Figure 4 and Figure 6The traction and hoisting mechanism 4 includes a traction and hoisting frame 41, which is fixedly mounted on the top of the external base 1. Fixed disks 42 are fixedly mounted on both sides of the top of the traction and hoisting frame 41. A reel 43 is rotatably connected between the inner sides of the fixed disks 42. A hoisting steel cable 44 is wound on the outer surface of the reel 43. The bottom of the hoisting steel cable 44 is fixedly connected to the top of the hanger 51. A second motor 45 is fixedly mounted on the outer side of a fixed disk 42. The output end of the second motor 45 passes through the fixed disk. 42 is fixedly connected to one end of the winding shaft 43, the first motor 551 and the second motor 45 are both configured as brake motors, support rods 46 are fixedly installed at both ends of the inner side of the pulling and hanging frame 41, the outer surface of the support rod 46 is slidably connected to a support sleeve 47, the inner side of the support sleeve 47 is fixedly connected to the outer side of the top plate 52, the outer surface of the second motor 45 is fixedly installed with a fixing ring 48, the bottom of the fixing ring 48 is fixedly installed with a reinforcing bracket 49, the bottom of the reinforcing bracket 49 is connected to the pulling and hanging frame 41 The second motor 45 is fixedly connected to the outside of the grouting auxiliary solidification equipment. When the grouting auxiliary device is in operation, the pulling and hanging mechanism 4 plays a key role. When the position of the grouting auxiliary device needs to be adjusted, the second motor 45 is started. The second motor 45 serves as a brake motor. After it is turned on, its output end drives the reel 43 to rotate, and the reel 43 starts to reel in or release the hanging cable 44. When the cable is reeled in, the hanger 51 connected to the bottom of the cable and the grouting auxiliary device connected thereto rise as a whole; when the cable is released, it falls. During the lifting process, the supporting sleeve 47 slides along the support rod 46 to ensure that the top plate 52 and the entire grouting auxiliary device move smoothly and avoid shaking and deviation. At the same time, the fixing ring 48 and the reinforcing bracket 49 outside the second motor 45 enhance the stability of the motor during operation and prevent the motor from being damaged by vibration or torque. In addition, the brake function of the second motor 45 can stop the rotation of the reel 43 in time when needed, accurately control the position of the grouting auxiliary device, and meet the adjustment requirements of the position of the grouting auxiliary device in different construction stages.

[0020] Please refer to Figure 3-Figure 5The bottom outer side of the side plate 5631 is fixedly installed with a fixed arm 5634, and the bottom of the fixed arm 5634 is fixedly installed with an annular tube 5635. The outer side of the annular tube 5635 is evenly spaced and fixedly connected with a vertical pipe 5367 in an annular arrangement. The vertical pipe 5367 is connected to the fixed arm 5634. The outer side of the vertical pipe 5367 is evenly spaced and linearly arranged and fixedly connected with an accelerator discharge pipe 5636. The top input end of the annular tube 5635 is connected to the output end of the accelerator supply mechanism 53. The accelerator supply mechanism 53 includes a mounting frame 531. The mounting frame 531 is fixed The top of the top cover is fixedly installed on one side, the top of the mounting frame 531 is fixedly installed with a tank body 532, the bottom output end of the tank body 532 is fixedly installed with a water pump 533, the input end of the water pump 533 is connected to the interior of the tank body 532, the output end of the water pump 533 is fixedly installed with a connecting hose 534, the output end of the connecting hose 534 is connected to the input end of the annular tube 5635, the input end of the grouting conduit 54 is fixedly installed with a guide pipe 6, the top of the guide pipe 6 is fixedly installed with a guide bucket 7, the guide bucket 7 is set in a conical shape as a whole, and the top of the tank body 532 is fixed. A feeding pipe 535 is fixedly connected, and a sealing cap 536 is threadedly connected to the top of the feeding pipe 535. During the auxiliary solidification operation of the cast-in-place pile grouting, the quick-setting agent supply mechanism 53 takes the lead. Before construction, the quick-setting agent is added to the tank body 532 through the feeding pipe 535 and sealed with the sealing cap 536. During the grouting process, the water pump 533 is started to extract the quick-setting agent in the tank body 532 and transport it to the annular pipe 5635 through the connecting hose 534. After the annular pipe 5635 receives the quick-setting agent, it evenly distributes the quick-setting agent through the vertical pipe 5367 connected thereto. The accelerator discharge pipes 5636 on the tube 5367 are arranged at equal intervals, which allows the accelerator to be discharged evenly. Since the accelerator discharge pipes 5636 are installed on the fixed arm 5634 fixed to the bottom of the side plate 5631, as the side plate 5631 rotates around the grouting guide pipe 54 with the sliding ring 562, the accelerator can be evenly distributed to all parts of the concrete in the bored pile pipe column, accelerating the solidification of the concrete. At the same time, the concrete is injected into the grouting guide pipe 54 through the guide bucket 7 and the guide pipe 6, and then flows into the prefabricated bored pile pipe column 2. The whole process cooperates to improve the solidification efficiency and quality of the bored pile.

[0021] Please refer to Figures 1-8The solidification auxiliary mechanism 56 includes an annular rail 561, which is fixedly mounted on the upper end of the outer surface of the grouting conduit 54. The interior of the annular rail 561 is slidably connected to a slip ring 562. The top of the slip ring 562 is connected to the output end of the driving mechanism 55. The outer side of the slip ring 562 is fixedly mounted with vibrating and quick-setting components 563 arranged in an annular shape at equal intervals. The driving mechanism 55 includes a first motor 551 and a gear ring 552. The first motor 551 is fixedly mounted on the top of the top plate 52 away from the quick-setting agent supply mechanism 5 3, the output end of the first motor 551 passes through the top plate 52 and is fixedly connected to the shaft 553, the bottom of the shaft 553 is fixedly installed with a gear 554, the gear ring 552 is fixedly installed on the top of the slip ring 562, the gear 554 and the gear ring 552 are meshed and connected, the vibrating quick-setting component 563 includes a side plate 5631, the side plates 5631 are arranged in a ring shape with equal spacing and are fixedly installed on the outside of the slip ring 562, the top of the side plate 5631 is fixedly installed with a vibrator 5632, and the bottom of the vibrator 5632 is installed with a Vibrating rod 5633, during the grouting construction of the bored pile, when the equipment is started, the first motor 551 of the driving mechanism 55 is turned on, and the first motor 551 outputs power to rotate the connecting shaft 553, which drives the gear 554 at the bottom to rotate. Since the gear 554 is meshed with the gear ring 552, the gear ring 552 rotates as the gear 554 rotates. The gear ring 552 is fixed to the top of the slip ring 562, thereby driving the slip ring 562 to do a circular motion in the annular rail 561. The outer side of the slip ring 562 is evenly spaced. The vibrating quick-setting component 563 rotates synchronously therewith, and the vibrator 5632 in the component starts, driving the vibrating rod 5633 at the bottom to generate high-frequency vibration. Driven by the slip ring 562, the vibrating rod 5633 performs a circular motion around the grouting conduit 54. The vibration generated can fully act on the concrete in the pipe column, effectively expel bubbles in the concrete, improve the density of the concrete, and accelerate the polymerization reaction of the internal slurry, thereby promoting the rapid and uniform solidification of the concrete and improving the solidification effect and overall quality of the cast-in-place pile.

[0022] The implementation principle of the bored pile grouting auxiliary solidification equipment of the embodiment of the present application is as follows: in the equipment design, by setting a pulling and hanging mechanism 4, when the second motor 45 is started, its output shaft drives the winding shaft 43 inside the fixed plate 42 to rotate synchronously, and the hanging steel cable 44 is wound in an orderly manner through the spiral groove on the surface of the winding shaft 43. As the steel cable is wound, the top plate 52 connected to the end of the steel cable begins to move upward. During this process, the supporting sleeve 47 outside the top plate 52 and the support rod 46 form a stable guiding structure. One end of the support rod 46 is hinged to the top plate 52, and the other end is embedded in the guide rail of the supporting sleeve 47, ensuring that the top plate 52 moves smoothly in the vertical direction to avoid tilting or shaking; This structural design enables the grouting auxiliary mechanism 5 to accurately control the lifting position according to construction requirements. After construction, the grouting auxiliary mechanism 5 can be quickly withdrawn from the inside of the precast cast-in-place pile tube column 2, facilitating cleaning and maintenance. Before construction starts, it can be accurately inserted into the inside of the precast cast-in-place pile tube column 2, improving construction efficiency. In addition, the setting of the fixing ring 48 and the strengthening bracket 49 further enhances the stability of the second motor 45. The fixing ring 48 is made of high-strength steel, tightly sleeved on the outer shell of the second motor 45, and firmly connected to the main structure of the equipment by bolts. The strengthening bracket 49 is distributed in a '丿' shape, welded to the fixing ring 48 at one end and fixed to the equipment base at the other end, effectively dispersing the vibration and torque generated during motor operation and extending the service life of the motor. The combined design of the material guide pipe 6 and the guiding hopper 7 optimizes the concrete injection process. The guiding hopper 7 adopts a funnel-shaped structure, and its inner wall is polished to reduce the resistance of concrete flow. The connection between the material guide pipe 6 and the guiding hopper 7 adopts a tapered design, enabling the concrete to form a stable flow rate before entering the grouting conduit 54, ensuring that the concrete can be evenly injected into the inside of the precast cast-in-place pile tube column 2. The setting of the grouting auxiliary mechanism 5 can further improve the grouting effect of this equipment. It mainly consists of a grouting conduit 54, a first motor 551, a gear 554, a gear ring 552, an annular track 561, a slip ring 562, a vibrating and accelerating-setting component 563, and an accelerating-setting agent delivery system. During grouting, the concrete first enters the material guide pipe 6 under the guiding effect of the guiding hopper 7, then flows into the grouting conduit 54 through the material guide pipe 6, and finally is injected into the inside of the precast cast-in-place pile tube column 2. At the same time, the first motor 551 is started. The gear 554 on the output shaft of the first motor 551 meshes with the gear ring 552 to form a stable transmission structure. As the gear 554 rotates, the gear ring 552 drives the slip ring 562 fixedly connected to it to move in a circular motion within the annular track 561. A plurality of vibrating and accelerating-setting components 563 are evenly distributed on the outer side of the slip ring 562. Each component includes a side plate 5631, a vibrator, and a vibrating rod 5633. When the slip ring 562 rotates, the side plate 5631 rotates accordingly, driving the vibrator and the vibrating rod 5633 at its bottom to move in a circular motion around the grouting conduit 54. After the vibrator is started, the vibrating rod 5633 generates high-frequency vibration, and its vibration frequency can be adjusted according to the characteristics of the concrete. This combined motion mode of rotation and vibration enables the vibrating rod 5633 to fully cover the concrete inside the precast cast-in-place pile tube column 2, effectively discharging the air bubbles in the concrete and improving the density of the concrete. At the same time, the vibration effect can also accelerate the polymerization reaction of the slurry inside the concrete and promote the coagulation process of the concrete. During this process, the second motor 45 drives the take-up reel 43 to pull the suspension tray 52 through the suspension cable 44, enabling the entire vibrating and accelerating-setting component 563 to move vertically, realizing comprehensive vibration of the concrete at different height positions inside the precast cast-in-place pile tube column 2 and ensuring the overall uniform coagulation of the concrete. The quick-setting agent delivery system consists of a tank body 532, a water pump 533, a connecting hose 534, a ring pipe 5635, a vertical pipe 5367 and a quick-setting agent discharge pipe 5636. Before construction, the quick-setting agent is added to the tank body 532 through the feeding pipe 535, and the feeding pipe 535 is sealed with a sealing cover 536 to prevent the quick-setting agent from leaking. During the vibration process, the water pump 533 is turned on, and the water pump 533 extracts the quick-setting agent from the tank body 532 and delivers it to the ring pipe 5635 through the connecting hose 534. The ring pipe 5635 surrounds the grouting conduit 54 and is connected to multiple vertical pipes. 5367 is connected, and the accelerator flows downward through the riser 5367 and is finally evenly injected into the concrete through the accelerator pipes 5636 arranged at equal intervals. Since the accelerator pipes 5636 rotate synchronously with the slip ring 562, the accelerator can be evenly distributed at various positions inside the precast bored pile column 2 and fully mixed with the concrete, further accelerating the solidification process of the concrete. The synergistic effect of this vibration and uniform injection of the accelerator significantly improves the solidification efficiency and overall quality of the bored pile, and reduces problems such as strength differences and cracks caused by uneven solidification.

[0023] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cast-in-place pile grouting auxiliary solidification equipment, characterized in that; The invention comprises an external base (1) and a prefabricated cast-in-place pile pipe column (2), wherein the external base (1) is fixedly connected to the upper end of the outer surface of the prefabricated cast-in-place pile pipe column (2), the external base (1) covers the top of the construction site foundation, the prefabricated cast-in-place pile pipe column (2) is sunk into the construction site foundation soil, the top of the external base (1) is fixed with a fixing frame (3) by bolts, the fixing frame (3) is arranged on the outside of the prefabricated cast-in-place pile pipe column (2), the top of the external base (1) is fixedly installed with a pulling and hoisting mechanism (4), the bottom of the pulling and hoisting mechanism (4) is hoisted with a grouting auxiliary device, and the bottom of the grouting auxiliary device extends inside the prefabricated cast-in-place pile pipe column (2); The grouting auxiliary device comprises a hanger (51), the hanger (51) is fixedly connected to the bottom of the traction and hoisting mechanism (4), a top plate (52) is fixedly installed on the bottom of the hanger (51), a quick-setting agent supply mechanism (53) is fixedly installed on one side of the top of the top plate (52), a grouting conduit (54) is fixedly installed in the middle of the top plate (52), a driving mechanism (55) is fixedly installed on one side of the top plate (52), and a solidification auxiliary mechanism (56) is movably installed on the outer surface of the grouting conduit (54).

2. The cast-in-place pile grouting auxiliary solidification equipment according to claim 1, characterized in that: The solidification auxiliary mechanism (56) comprises an annular rail (561), the annular rail (561) is fixedly mounted on the upper end of the outer surface of the grouting conduit (54), the interior of the annular rail (561) is slidably connected to a slip ring (562), the top of the slip ring (562) is connected to the output end of the driving mechanism (55), and the outer side of the slip ring (562) is fixedly mounted with vibrating quick-setting components (563) arranged in an annular shape at equal intervals.

3. The cast-in-place pile grouting auxiliary solidification equipment according to claim 2, characterized in that: The driving mechanism (55) comprises a first motor (551) and a gear ring (552). The first motor (551) is fixedly mounted on a side of the top of the top plate (52) away from the quick-setting agent supply mechanism (53). The output end of the first motor (551) passes through the top plate (52) and is fixedly connected to a connecting shaft (553). A gear (554) is fixedly mounted on the bottom of the connecting shaft (553). The gear ring (552) is fixedly mounted on the top of the slip ring (562). The gear (554) and the gear ring (552) are meshed and connected.

4. The cast-in-place pile grouting auxiliary solidification equipment according to claim 3, characterized in that: The vibrating quick-setting component (563) comprises side plates (5631), the side plates (5631) being arranged in a ring shape at equal intervals and fixedly mounted on the outside of the slip ring (562), a vibrator (5632) being fixedly mounted on the top of the side plates (5631), and a vibrating rod (5633) being mounted on the bottom of the vibrator (5632).

5. The cast-in-place pile grouting auxiliary solidification equipment according to claim 4, characterized in that: A fixed arm (5634) is fixedly installed on the outer side of the bottom of the side plate (5631), and an annular tube (5635) is fixedly installed on the bottom of the fixed arm (5634). Vertical tubes (5367) are fixedly connected to the outer side of the annular tube (5635) at equal intervals and arranged in an annular shape. The vertical tubes (5367) are connected to the fixed arm (5634). Accelerator pipes (5636) are fixedly connected to the outer side of the vertical tube (5367) at equal intervals and arranged linearly. The top input end of the annular tube (5635) is connected to the output end of the accelerator supply mechanism (53).

6. The cast-in-place pile grouting auxiliary solidification equipment according to claim 5, characterized in that: The quick-setting agent supply mechanism (53) comprises a mounting frame (531), the mounting frame (531) being fixedly mounted on one side of the top of the top cover, a tank body (532) being fixedly mounted on the top of the mounting frame (531), a water pump (533) being fixedly mounted on the bottom output end of the tank body (532), an input end of the water pump (533) being connected to the interior of the tank body (532), a connecting hose (534) being fixedly mounted on the output end of the water pump (533), and an output end of the connecting hose (534) being connected to an input end of the annular tube (5635).

7. The cast-in-place pile grouting auxiliary solidification equipment according to claim 6, characterized in that: A material guide pipe (6) is fixedly installed at the input end of the grouting conduit (54), a guide bucket (7) is fixedly installed at the top of the material guide pipe (6), and the guide bucket (7) is arranged in a conical shape as a whole. A feeding pipe (535) is fixedly connected to the top of the tank body (532), and a sealing cover (536) is threadedly connected to the top of the feeding pipe (535).

8. The cast-in-place pile grouting auxiliary solidification equipment according to claim 3, characterized in that: The pulling and hoisting mechanism (4) includes a pulling and hoisting frame (41), the pulling and hoisting frame (41) is fixedly installed on the top of the external base (1), and fixed disks (42) are fixedly installed on both sides of the top of the pulling and hoisting frame (41), and a reel (43) is rotatably connected between the inner sides of the fixed disks (42), and a hoisting steel cable (44) is reeled on the outer surface of the reel (43), and the bottom of the hoisting steel cable (44) is fixedly connected to the top of the hanger (51), and a second motor (45) is fixedly installed on the outer side of a fixed disk (42), and the output end of the second motor (45) passes through the fixed disk (42) and is fixedly connected to one end of the reel (43), and the first motor (551) and the second motor (45) are both configured as brake motors.

9. The cast-in-place pile grouting auxiliary solidification equipment according to claim 8, characterized in that: Support rods (46) are fixedly installed at both ends of the inner side of the pulling and hanging frame (41), and the outer surface of the support rod (46) is slidably connected to a supporting sleeve (47), and the inner side of the supporting sleeve (47) is fixedly connected to the outer side of the top plate (52).

10. The cast-in-place pile grouting auxiliary solidification equipment according to claim 8, characterized in that: A fixing ring (48) is fixedly mounted on the outer surface of the second motor (45), a reinforcing bracket (49) is fixedly mounted on the bottom of the fixing ring (48), and the bottom of the reinforcing bracket (49) is fixedly connected to the outer side of the pulling and hanging frame (41).

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