A concrete-steel pipe pile structure and method with internal support frame

Abstract

This invention discloses a concrete-steel pipe pile structure and method with an internal support frame, relating to the field of construction equipment technology. The invention includes a pipe body with reinforcing ribs installed on its surface; an auxiliary component is provided at the bottom of the pipe body, comprising a support shaft installed at the bottom of the pipe body and a baffle plate installed on the surface of the support shaft. By setting up the auxiliary component, fixing component, and support component, this invention effectively solves the problems in the prior art where concrete-steel square pipe piles easily rub against the pile hole wall and are obstructed during insertion. The auxiliary component can flexibly adjust the angle of the baffle plate, thereby flattening the protruding part at the bottom of the pile hole wall, reducing frictional resistance during pipe insertion, and improving installation efficiency and accuracy. The fixing component, with its rotating shaft, rotating disk, adjusting groove, moving shaft, limiting pin, and limiting hole, can stably fix the position of the moving plate, avoiding construction interruption or safety hazards due to loosening.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building construction equipment, and particularly relates to a concrete steel pipe pile structure with an internal support framework and a method. BACKGROUND

[0002] The concrete steel square pipe pile is a composite pile foundation structure combining the advantages of steel and concrete. The main body is a square steel pipe, and high-strength concrete is poured inside to form a steel-concrete composite section. The steel pipe serves as a force skeleton, which can significantly improve the bending, compression and shear resistance, and effectively constrain the concrete to delay crack propagation. The concrete enhances the overall stability, improves the durability and shares the load. This structure is suitable for soft soil foundation, deep water area or high load engineering (such as bridge, high-rise building), and has the characteristics of convenient construction (factory prefabrication), high bearing capacity, strong seismic resistance, etc. It is one of the important development directions of modern pile foundation technology.

[0003] The current concrete steel square pipe pile needs to use hoisting equipment to assist the insertion of the square pipe pile into the pile foundation hole. When the square pipe is inserted into the pile foundation hole, it is easy to contact the pile foundation hole wall, and the resistance will increase. Once the deviation occurs, it cannot continue to move down, and needs to be lifted up to adjust the insertion angle again. During the upward movement, the square pipe rubs against the inner wall of the pile foundation hole, which easily causes the square pipe to stretch and deform, affecting normal construction.

[0004] Therefore, we provide a concrete steel pipe pile structure with an internal support framework and a method to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a concrete steel pipe pile structure with an internal support framework and a method. Through the cooperation of the auxiliary assembly, the fixing assembly and the support assembly, the problem of the concrete steel square pipe pile in the prior art being easy to rub against the pile foundation hole wall and being hindered in the insertion process is solved.

[0006] To solve the above technical problems, the present application is realized by the following technical solutions.

[0007] The application discloses a concrete steel pipe pile structure with an inner support framework and a method.

[0008] The application further provides that the fixing assembly further comprises a screw rod installed on the top of the rotating shaft, a second hydraulic rod installed on the top of the support plate, a horizontal plate installed on the output end of the second hydraulic rod, and a rotating pipe movably connected in the horizontal plate.

[0009] The application further provides that the surface of the rotating pipe is fixedly connected with a first gear, the first gear is meshed with a second gear on one side, the horizontal plate is fixedly connected with a driving motor in the horizontal plate, and the output end of the driving motor is fixedly connected with the second gear.

[0010] The application further provides that the horizontal plate and the support plate are both provided with a sliding groove in the horizontal plate and the support plate, a pressure sensor is installed in the sliding groove, one end of the pressure sensor is fixedly connected with a moving rod, and the surface of the moving rod is fixedly connected with a pulley.

[0011] The application further provides that the moving plate is internally provided with a connecting plate, the connecting plate is slidably connected with a sliding rod in the connecting plate, the sliding rod is fixedly connected with the limiting pin on both sides of the sliding rod, the surface of the sliding rod is sleeved with a spring, and one end of the spring is fixedly connected with the connecting plate.

[0012] The application further provides that the other side of the fixing shell is fixedly connected with the baffle, the surface of the screw rod is provided with external threads, the rotating pipe is internally provided with internal threads, and the external threads are matched with the internal threads.

[0013] The application further provides that the bottom of the pipe body is provided with a soil layer, and the soil layer is internally provided with a pile foundation hole.

[0014] The pipe body surface top is fixedly connected with a rainproof plate, the rainproof plate top is fixedly connected with a hook, and the hook top is fixedly connected with a traction rope.

[0015] The rainproof plate top is provided with a support, one side of the support is fixedly connected with a servo motor, the servo motor output end is fixedly connected with a winding roller, the winding roller surface is fixedly connected with a steel cable rope, and the other end of the steel cable rope is fixedly connected with a supporting plate.

[0016] A method for using a concrete steel pipe pile with an internal support framework, comprising the following steps:

[0017] S1: the staff connects the pipe body with an external hoisting device through the traction rope, hoists the pipe body by using the external hoisting device, vertically inserts the pipe body into the pile foundation hole, and when the pipe body bottom contacts the pile foundation hole inner wall and rubs to hinder the pipe body from continuing to move downward, starts the servo motor, drives the winding roller to rotate to release the steel cable rope, and the supporting plate and the horizontal plate move downward due to the weight influence after the steel cable rope is released;

[0018] S2: when the horizontal plate drives the rotating pipe to contact the screw rod, starts the driving motor, drives the first gear to rotate by cooperating with the second gear, drives the rotating pipe to rotate by the first gear, uses the thread effect to connect the rotating pipe with the screw rod, and when the screw rod is completely connected with the rotating pipe, the rotating pipe continues to rotate to drive the screw rod and the rotating shaft to rotate, the rotating shaft drives the adjusting groove to move by cooperating with the rotating disc, the adjusting groove drives the moving shaft and the limiting pin to move, the limiting pin moves to be separated from the limiting hole to cancel the limiting of the moving plate;

[0019] S3: then starts the first hydraulic rod, drives the push plate to contact the tank inner wall by the friction force to fix the supporting plate, then starts the second hydraulic rod, drives the horizontal plate and the rotating pipe to move, drives the moving plate to move by the rotating pipe, drives the supporting shell and the adjusting plate to move by the moving plate, drives the baffle to rotate around the supporting shaft by the adjusting plate, makes the baffle contact the pile foundation hole wall, flattens the pile foundation hole wall bottom protruding part, enables the pipe body to be smoothly inserted into the pile foundation hole, and improves the installation efficiency.

[0020] The present application has the following beneficial effects.

[0021] 1. The auxiliary assembly, fixing assembly and supporting assembly are provided, effectively solve the problem that the concrete steel square pipe pile in the prior art is easy to rub with the pile hole wall when inserted into the pile hole, and the insertion process is blocked, the cooperation of the supporting shaft, baffle, moving plate, supporting shell, movable pin, adjusting plate and fixed shell in the auxiliary assembly can flexibly adjust the angle of the baffle, thereby flattening the protruding part at the bottom of the pile hole wall, reducing the friction resistance when the pipe body is inserted, avoiding deformation of the pipe body due to deviation or friction, improving installation efficiency and precision, the cooperation of the rotating shaft, rotating disc, adjusting groove, moving shaft, limiting pin and limiting hole in the fixing assembly can stably fix the position of the moving plate, ensure the stability of the auxiliary assembly when adjusting the angle of the baffle, and avoid construction interruption or safety hazards caused by loosening.

[0022] 2. The design of the supporting assembly further enhances the compression resistance of the pipe body and the construction safety, the cooperation of the supporting plate, first hydraulic rod and push plate in the supporting assembly can provide support force from the inside of the pipe body, prevent the pipe body from deforming or deviating when inserted into the pile hole, and ensure the construction quality. The threaded cooperation of the screw rod, second hydraulic rod, horizontal plate and rotating pipe in the fixing assembly realizes the stable connection of the rotating pipe and the screw rod, drives the rotating shaft to rotate, provides a stable transmission mechanism, ensures that the limiting pin of the fixing assembly can accurately disengage from the limiting hole, facilitates the adjustment of the moving plate, and the design of the pressure sensor, moving rod and pulley can monitor the pressure change of the supporting plate and the horizontal plate during movement, ensure uniform stress, avoid structure damage caused by excessive local pressure, and improve construction safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used for the embodiment description.

[0024] Figure 1 It is a perspective view of a concrete steel pipe pile structure with an internal support framework and a method.

[0025] Figure 2 It is a perspective view of a pipe body in a concrete steel pipe pile structure with an internal support framework and a method.

[0026] Figure 3 It is a perspective view of a concrete steel pipe pile structure with an internal support framework and a method Figure 2 .

[0027] Figure 4 It is a sectional view of a pipe body in a concrete steel pipe pile structure with an internal support framework and a method.

[0028] Figure 5 It is a structural schematic view of the top of the rainproof plate in a concrete steel pipe pile structure with an internal support framework and a method.

[0029] Figure 6 Figure 6 is a sectional view of a support plate and a cross plate in a concrete steel pipe pile structure with an internal support framework and a method thereof.

[0030] Figure 7 Figure 7 is a top view of a support plate in a concrete steel pipe pile structure with an internal support framework and a method thereof.

[0031] Figure 8 Figure 8 is a sectional view of a moving plate in a concrete steel pipe pile structure with an internal support framework and a method thereof.

[0032] Figure 9 Figure 9 is a top view of a moving plate in a concrete steel pipe pile structure with an internal support framework and a method thereof.

[0033] In the drawings: 1, pipe body; 2, reinforcing rib; 3, auxiliary assembly; 301, support shaft; 302, baffle; 303, moving plate; 304, support shell; 305, movable pin; 306, adjusting plate; 307, fixed shell; 4, fixed assembly; 401, rotating shaft; 402, rotating disc; 403, adjusting groove; 404, moving shaft; 405, limiting pin; 406, limiting hole; 5, support assembly; 501, support plate; 502, first hydraulic rod; 503, push plate; 407, screw rod; 408, second hydraulic rod; 409, cross plate; 4010, rotating pipe; 6, first gear; 7, second gear; 8, driving motor; 9, sliding groove; 10, pressure sensor; 11, moving rod; 12, pulley; 13, connecting plate; 14, sliding rod; 15, spring; 16, soil layer; 17, pile hole; 18, rainproof plate; 19, hook; 20, traction rope; 21, support; 22, servo motor; 23, winding roller; 24, steel cable. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. The described embodiments are only some of the embodiments of the present application, not all. Embodiment 1

[0035] Please refer to Figures 1-9This invention relates to a concrete steel pipe pile structure and method with an internal support frame, comprising a pipe body 1, with reinforcing ribs 2 installed on the surface of the pipe body 1; an auxiliary component 3 is provided at the bottom of the pipe body 1, the auxiliary component 3 including a support shaft 301 installed at the bottom of the pipe body 1, a baffle 302 installed on the surface of the support shaft 301, a movable plate 303 slidably connected to the inside of the pipe body 1, a support shell 304 installed at the bottom of the movable plate 303, a movable pin 305 movably connected to the inside of the support shell 304, an adjusting plate 306 fixedly connected to the surface of the movable pin 305, and a fixed shell 307 movably connected to one side of the adjusting plate 306, the angle of the baffle 302 being adjusted by the auxiliary component 3; and a fixing component 4 is provided inside the pipe body 1. 4 includes a rotating shaft 401 movably connected inside the movable plate 303, a rotating disk 402 mounted on the surface of the rotating shaft 401, an adjustment groove 403 opened inside the rotating disk 402, a movable shaft 404 slidably connected inside the adjustment groove 403, a limiting pin 405 installed on one side of the movable shaft 404, and a limiting hole 406 opened inside the tube body 1. The position of the movable plate 303 is fixed by the fixing assembly 4. A support assembly 5 is provided inside the tube body 1. The support assembly 5 includes a support plate 501 slidably connected inside the tube body 1, a first hydraulic rod 502 installed at the bottom of the support plate 501, and a push plate 503 installed at the output end of the first hydraulic rod 502. The support assembly 5 provides support from inside the tube body 1.

[0036] Specifically: Pipe body 1 serves as the main structure of the pile foundation, with concrete poured inside to form a steel-concrete composite section; reinforcing ribs 2 are welded or fixed to the surface of pipe body 1 to enhance its bending, compressive, and shear resistance; the linkage between adjusting plate 306 and fixed shell 307 adjusts the angle of baffle 302 to flatten the protruding part of the inner wall of pile foundation hole 17, reducing the frictional resistance when pipe body 1 is inserted into pile foundation hole 17, preventing deformation of pipe body 1 due to offset or friction, and improving installation efficiency and accuracy; the cooperation between limiting pin 405 and limiting hole 406 fixes the position of moving plate 303, ensuring the stability of auxiliary component 3 when adjusting the angle of baffle 302, and avoiding construction interruption or safety hazards due to loosening. Example 2

[0037] Please see Figures 1-9Based on Embodiment 1, the fixing assembly 4 further includes a screw 407 mounted on the top of the rotating shaft 401, a second hydraulic rod 408 mounted on the top of the support plate 501, a horizontal plate 409 mounted on the output end of the second hydraulic rod 408, a rotating tube 4010 movably connected inside the horizontal plate 409, a first gear 6 fixedly connected to the surface of the rotating tube 4010, a second gear 7 meshing on one side of the first gear 6, and a drive motor 8 fixedly connected inside the horizontal plate 409, with the output end of the drive motor 8 meshing with the second gear 7. Wheel 7 is fixedly connected. Both the horizontal plate 409 and the support plate 501 have a sliding groove 9 inside. A pressure sensor 10 is installed inside the sliding groove 9. One end of the pressure sensor 10 is fixedly connected to a moving rod 11. A pulley 12 is fixedly connected to the surface of the moving rod 11. A connecting plate 13 is installed inside the moving plate 303. A sliding rod 14 is slidably connected inside the connecting plate 13. Both sides of the sliding rod 14 are fixedly connected to the limit pin 405. A spring 15 is sleeved on the surface of the sliding rod 14. One end of the spring 15 is fixedly connected to the connecting plate 13.

[0038] Specifically: the support plate 501, the first hydraulic rod 502 and the push plate 503 provide support from inside the pipe body 1, enhancing the compressive strength of the pipe body 1. When the pipe body 1 is inserted into the pile foundation hole 17, it provides additional support to prevent the pipe body 1 from deforming or shifting, ensuring construction quality. The connection between the rotating pipe 4010 and the screw 407 is achieved through threaded engagement, driving the rotating shaft 401 to rotate, providing a stable transmission mechanism, ensuring that the limiting pin 405 of the fixing component 4 can accurately disengage from the limiting hole 406, facilitating the adjustment of the moving plate 303. Example 3

[0039] Please see Figures 1-9 Based on Embodiments 1 and 2, the other side of the fixed shell 307 is fixedly connected to the baffle 302. The screw 407 has an external thread on its surface and the rotating tube 4010 has an internal thread inside. The external thread and the internal thread are compatible. A soil layer 16 is provided at the bottom of the tube body 1. A pile foundation hole 17 is provided inside the soil layer 16. A rainproof plate 18 is fixedly connected to the top of the surface of the tube body 1. A hook 19 is fixedly connected to the top of the rainproof plate 18. A traction rope 20 is fixedly connected to the top of the hook 19. A bracket 21 is installed on the top of the rainproof plate 18. A servo motor 22 is fixedly connected to one side of the bracket 21. A winding roller 23 is fixedly connected to the output end of the servo motor 22. A steel cable 24 is fixedly connected to the surface of the winding roller 23. The other end of the steel cable 24 is fixedly connected to the support plate 501.

[0040] Specifically: pressure sensor 10, moving rod 11 and pulley 12 monitor the pressure changes of support plate 501 and cross plate 409 during movement to ensure uniform force distribution, avoid structural damage due to excessive local pressure, and improve construction safety. Rainproof plate 18 is used to prevent rainwater from entering the pile foundation hole 17 after the pipe body 1 is installed. The bracket 21 and rainproof plate 18 are fixed together with bolts and nuts. After the pipe body 1 is installed in the pile foundation hole 17, the support plate 501 and the bottom structure can be removed from the pipe body 1 for reuse, which facilitates the subsequent installation of the pipe body 1.

[0041] The working principle of this invention is as follows: the worker connects the pipe body 1 to the external lifting equipment through the traction rope 20, and uses the external lifting equipment to lift the pipe body 1 and vertically insert the pipe body 1 into the pile hole 17. When the bottom of the pipe body 1 comes into contact with the inner wall of the pile hole 17 and friction occurs, which prevents the pipe body 1 from moving downward, the servo motor 22 is started. The servo motor 22 drives the winding roller 23 to rotate and release the steel cable 24. After the steel cable 24 is released, due to the influence of weight, the support plate 501 and the horizontal plate 409 will move downward.

[0042] When the horizontal plate 409 drives the rotating tube 4010 to contact the screw 407, the drive motor 8 is started. The drive motor 8, in conjunction with the second gear 7, drives the first gear 6 to rotate. The first gear 6 drives the rotating tube 4010 to rotate. The rotating tube 4010 is connected to the screw 407 by the thread. When the screw 407 and the rotating tube 4010 are fully connected, the rotating tube 4010 continues to rotate, which can drive the screw 407 and the rotating shaft 401 to rotate. The rotating shaft 401, in conjunction with the rotating disk 402, drives the adjusting groove 403 to move. The adjusting groove 403 pushes the moving shaft 404 and the limiting pin 405 to move. When the limiting pin 405 moves, it disengages from the limiting hole 406, thus canceling the limitation on the moving plate 303.

[0043] Then, the first hydraulic rod 502 is activated, which drives the push plate 503 to contact the inner wall of the tank. The support plate 501 is fixed by friction. Then, the second hydraulic rod 408 is activated, which drives the horizontal plate 409 and the rotating tube 4010 to move. The rotating tube 4010 pushes the moving plate 303 to move. The moving plate 303 pushes the support shell 304 and the adjusting plate 306 to move. The adjusting plate 306 pushes the baffle 302 to rotate around the support shaft 301, so that the baffle 302 contacts the wall of the pile hole 17 and flattens the protruding part at the bottom of the pile hole 17, so that the tube 1 can be smoothly inserted into the pile hole 17, improving the installation efficiency.

[0044] The preferred embodiments of the present invention disclosed above are only for the purpose of illustrating the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation described herein. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.

Claims

1. A concrete steel pipe pile structure with in-line support skeleton, comprising a pipe body (1), characterized in that: The pipe body (1) is surface-mounted with a reinforcing rib (2); The pipe body (1) is provided with an auxiliary assembly (3) at the bottom, the auxiliary assembly (3) comprises a supporting shaft (301) mounted on the bottom of the pipe body (1), a baffle (302) mounted on the surface of the supporting shaft (301), a moving plate (303) slidably connected inside the pipe body (1), a supporting shell (304) mounted on the bottom of the moving plate (303), a movable pin (305) movably connected inside the supporting shell (304), an adjusting plate (306) fixedly connected to the surface of the movable pin (305), a fixed shell (307) movably connected to one side of the adjusting plate (306), and the angle of the baffle (302) is adjusted through the auxiliary assembly (3); The pipe body (1) is provided with a fixing assembly (4) inside, the fixing assembly (4) comprises a rotating shaft (401) movably connected inside the moving plate (303), a rotating disc (402) mounted on the surface of the rotating shaft (401), an adjusting groove (403) opened in the rotating disc (402), a moving shaft (404) slidably connected inside the adjusting groove (403), a limiting pin (405) mounted on one side of the moving shaft (404), and a limiting hole (406) opened in the pipe body (1), and the position of the moving plate (303) is fixed through the fixing assembly (4); The pipe body (1) is provided with a supporting assembly (5) inside, the supporting assembly (5) comprises a supporting plate (501) slidably connected inside the pipe body (1), a first hydraulic rod (502) mounted on the bottom of the supporting plate (501), a push plate (503) mounted on the output end of the first hydraulic rod (502), and the pipe body (1) is supported from the inside through the supporting assembly (5).

2. The concrete steel pipe pile structure with in-line support skeleton according to claim 1, characterized in that: The fixing assembly (4) further comprises a screw rod (407) mounted on the top of the rotating shaft (401), a second hydraulic rod (408) mounted on the top of the supporting plate (501), a cross plate (409) mounted on the output end of the second hydraulic rod (408), and a rotating pipe (4010) movably connected inside the cross plate (409).

3. The concrete-filled steel tubular pile structure with in-line bracing skeleton according to claim 2, characterized in that: The surface of the rotating pipe (4010) is fixedly connected with a first gear (6), one side of the first gear (6) is engaged with a second gear (7), the inside of the cross plate (409) is fixedly connected with a driving motor (8), and the output end of the driving motor (8) is fixedly connected with the second gear (7).

4. The concrete-filled steel tubular pile structure with in-line bracing skeleton according to claim 3, characterized in that: The inside of the cross plate (409) and the supporting plate (501) is provided with a sliding groove (9), the inside of the sliding groove (9) is provided with a pressure sensor (10), one end of the pressure sensor (10) is fixedly connected with a moving rod (11), and the surface of the moving rod (11) is fixedly connected with a pulley (12).

5. The concrete steel pipe pile structure with in-line support skeleton according to claim 4, characterized in that: The inside of the moving plate (303) is provided with a connecting plate (13), the inside of the connecting plate (13) is slidably connected with a sliding rod (14), the two sides of the sliding rod (14) are fixedly connected with the limiting pin (405), the surface of the sliding rod (14) is sleeved with a spring (15), and one end of the spring (15) is fixedly connected with the connecting plate (13).

6. The concrete steel pipe pile structure with in-line support cage according to claim 5, characterized in that: The fixed shell (307) is fixedly connected with the baffle (302) on the other side, the screw rod (407) is provided with external threads on the surface, and the rotating pipe (4010) is provided with internal threads in the inside.

7. The concrete steel pipe pile structure with in-line support cage according to claim 6, characterized in that: The pipe body (1) is provided with a soil layer (16) at the bottom, and the soil layer (16) is provided with a pile hole (17) in the inside.

8. The concrete steel pipe pile structure with in-line support cage according to claim 7, characterized in that: The pipe body (1) is provided with a rainproof plate (18) fixedly connected to the top of the surface, the rainproof plate (18) is provided with a hook (19) fixedly connected to the top, and the hook (19) is provided with a traction rope (20) fixedly connected to the top.

9. The concrete steel pipe pile structure with in-line support cage according to claim 8, characterized in that: The rainproof plate (18) is provided with a support (21) mounted on the top, the support (21) is provided with a servo motor (22) fixedly connected to one side, the servo motor (22) is provided with a winding roller (23) fixedly connected to the output end, the winding roller (23) is provided with a steel cable (24) fixedly connected to the surface, and the other end of the steel cable (24) is fixedly connected with a supporting plate (501).

10. A method for using the in-line bracing skeleton concrete steel pipe pile based on the structure of the in-line bracing skeleton concrete steel pipe pile according to claim 9, characterized in that, The steps include: S1: the staff connects the pipe body (1) with the external hoisting equipment through the traction rope (20), hoists the pipe body (1) by using the external hoisting equipment, vertically inserts the pipe body (1) into the pile hole (17), and when the pipe body (1) is in contact with the inner wall of the pile hole (17) at the bottom and rubs, hinders the pipe body (1) from moving downward, starts the servo motor (22), drives the winding roller (23) to rotate to release the steel cable (24), and the supporting plate (501) and the horizontal plate (409) move downward due to the weight of the steel cable (24); S2: when the horizontal plate (409) drives the rotating pipe (4010) to contact the screw rod (407), the driving motor (8) is started, the driving motor (8) drives the first gear (6) to rotate in cooperation with the second gear (7), the first gear (6) drives the rotating pipe (4010) to rotate, the rotating pipe (4010) is connected with the screw rod (407) by using the thread effect, when the screw rod (407) is completely connected with the rotating pipe (4010), the rotating pipe (4010) drives the screw rod (407) and the rotating shaft (401) to rotate when the rotating pipe (4010) continues to rotate, the rotating shaft (401) drives the adjusting groove (403) to move in cooperation with the rotating disc (402), the adjusting groove (403) drives the moving shaft (404) and the limiting pin (405) to move, and the limiting pin (405) moves away from the limiting hole (406) to cancel the limiting of the moving plate (303). S3: After starting the first hydraulic rod (502), the first hydraulic rod (502) drives the push plate (503) to contact the inner wall of the pipe body, and the support plate (501) is fixed through the friction force, and then the second hydraulic rod (408) is started. The second hydraulic rod (408) drives the horizontal plate (409) and the rotating pipe (4010) to move, the rotating pipe (4010) pushes the moving plate (303) to move, the moving plate (303) pushes the support shell (304) and the adjusting plate (306) to move, the adjusting plate (306) pushes the baffle (302) to rotate around the support shaft (301) as the axis, makes the baffle (302) contact with the wall of the pile foundation hole (17), and the protruding part at the bottom of the pile foundation hole (17) is flattened, so that the pipe body (1) can be smoothly inserted into the pile foundation hole (17), and the installation efficiency is improved.

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