Construction equipment and method for concrete pipe piles

Abstract

The present application relates to the technical field of pipe pile construction devices, and in particular to a construction equipment and method for concrete pipe piles, comprising a fixed frame, a driving mechanism installed on the outside of the fixed frame, a connecting frame installed on the outside of the driving mechanism, a control mechanism installed on the inside of the connecting frame, a supporting cylinder rotatably connected to the inside of the supporting cylinder, a moving ring 1 slidably connected to the inside of the moving ring 1, a control plate slidably connected to the inside of the moving ring 1, a fixed shaft 1 installed on the outside of the control plate, through the cooperation between the control plate, the connecting rod and the fixed rod, the fixed shaft 1 and the fixed shaft 2 are connected through the connecting rod, and the fixed shaft 1 and the fixed shaft 2 can be fixed by the connection between the fixed rod and the connecting rod, and when the support cylinder rotates, it can drive a spiral piece of a new length for construction, thereby realizing the function of adjusting the length of the spiral piece according to the depth of the pit, which is conducive to installation according to different processing requirements.

Description

Technical Field

[0001] The present application relates to the technical field of pipe pile construction devices, and in particular to a construction device and method for concrete pipe piles. Background Art

[0002] Concrete pipe piles are a type of concrete component, mainly used in foundation treatment of projects such as buildings, bridges and ports. Their main structure consists of a pile body, end plates and steel sleeves. Different outer diameters and wall thicknesses can be selected according to different pipe pile construction requirements. They can provide enhanced support in weak foundations, adapt to complex geological environments, and have high strength and durability.

[0003] In the process of concrete pipe pile construction, a pipe pile excavator will be used. The rotary excavator can be used to process positioning holes that are suitable for the size of the pipe piles. During construction, concrete support pipes will be filled inside the holes. The concrete support pipes can enhance the stability of the pipe piles. According to the different sizes of the holes, holes of different depths need to be excavated. When constructing holes, workers will use an excavator. The interior of the excavator includes an integral fixed frame, a control motor, and spiral blades. The position of the spiral blades can be controlled by the fixed frame. At this time, the spiral blades controlled by the control motor can rotate to construct the holes. However, the length of the spiral blades of this type of equipment is generally fixed, and only holes of fixed depth can be dug during construction. When holes of different depths need to be dug, spiral blades of different lengths need to be installed on the outside of the control motor, or the spiral blades after construction need to be taken out and new spiral blades installed at the bottom of the spiral blade fixed shaft. The downtime during installation is long, and the installation is inconvenient.

[0004] Therefore, we propose a construction device and method for concrete pipe piles. Summary of the Invention

[0005] In order to facilitate the adjustment of the length of the spiral blades, the present application provides a construction device and method for concrete pipe piles.

[0006] The present application provides a construction device and method for concrete pipe piles, which adopts the following technical solutions:

[0007] A construction device and method for concrete pipe piles, comprising a fixing frame, a driving mechanism mounted on the outside of the fixing frame, a connecting frame mounted on the outside of the driving mechanism, and a control mechanism mounted on the inside of the connecting frame;

[0008] The interior of the connecting frame is rotatably connected to a support cylinder, the interior of the support cylinder is slidably connected to a mobile ring 1, the interior of the mobile ring 1 is slidably connected to a control plate, a fixed shaft 1 is installed on the outside of the control plate, a rotary drilling spiral piece is installed on the outside of the fixed shaft 1, a connecting rod is installed on one end of the fixed shaft 1, the outer surface of the connecting rod is slidably connected to a fixed shaft 2, the outside of the fixed shaft 2 is installed with a connecting spiral piece, and the interior of the fixed shaft 2 is threadedly connected to the fixed rod;

[0009] The outer surface of the support cylinder is slidably connected with the moving ring 2, the control plate moves inside the moving ring 1 and the moving ring 2, the outside of the moving ring 2 is installed with a limiting mechanism, and the outside of the moving ring 2 is installed with a support frame.

[0010] The interior of the fixed shaft 1 and the fixed shaft 2 are provided with limiting grooves, and the limiting grooves and the control plate are both arranged in a circular array in multiple groups. The outer surface of the control plate is slidably connected to the interior of the limiting groove. The interior of the support tube is provided with a positioning groove, and the outer surface of the control plate is slidably connected to the interior of the positioning groove.

[0011] The cross section of the connecting rod is a hexagonal structure. The outer surface of the fixing rod is connected to the inner thread of the connecting rod. The fixing rods are arranged in an upper and lower interval inside the second fixing shaft.

[0012] The limiting mechanism includes a threaded rod 2, the outer surface of which is rotatably connected to the interior of the support tube, the outer surface of which is threadedly connected to the interior of the moving ring 2, a No. 3 motor is installed on the outside of the support tube, the output end of the No. 3 motor is fixedly installed on one end of the threaded rod 2, and multiple groups of limiting rods 2 are fixedly installed on the outer surface of the support tube, and the outer surface of the limiting rod 2 is slidably connected to the interior of the moving ring 2.

[0013] Optionally, the driving mechanism includes a No. 1 motor, the base of the No. 1 motor is fixedly mounted on the outside of the fixed frame, the output end of the No. 1 motor is fixedly mounted with a threaded rod 1, the outer surface of the threaded rod 1 is threadedly connected to the movable frame, the outer surface of the movable frame is fixedly mounted to the outer surface of the connecting frame, the interior of the fixed frame is fixedly mounted with a limiting rod 1, and the outer surface of the limiting rod 1 is slidably connected to the interior of the movable frame.

[0014] Optionally, the control mechanism includes gear 1, the outer surface of the support cylinder is fixedly mounted on the interior of gear 1, the outside of gear 1 is meshed with gear 2, the rotating shaft of gear 2 is rotatably connected to the interior of the connecting frame, motor No. 2 is mounted on the outside of the connecting frame, and the output end of motor No. 2 is fixedly mounted on one end of the rotating shaft of gear 2.

[0015] Optionally, the internal thread of the support frame is connected to a threaded rod three, the outer surface of the threaded rod three is rotatably connected to the outer surface of the control panel, the outer surface of the control panel is fixedly mounted with a baffle, and the outer surface of the baffle is in contact with the outer surface of the movable ring one.

[0016] A construction method for concrete pipe piles comprises the following steps:

[0017] S1: When in use, first fix the fixed shaft 1 and place it inside the support tube. Then rotate the threaded rod 3 to make the control plate enter the limit groove. The control plates arranged in a circular array at this time fix the limit groove to position the fixed shaft 1 in the middle position of the support tube.

[0018] S2: During the construction of the pile tunnel, the No. 2 motor controls the rotation of gear 2. The meshing of gears 1 and 2 controls the rotation of the support tube inside the connecting frame. At this time, the support tube is moved downward by the action of threaded rod 1, and the No. 2 motor controls the rotation of the rotary drilling screw to perform rotary drilling construction on the pile tunnel.

[0019] S3: The rotation of the threaded rod 2 enables the movable ring 1 and the movable ring 2 to move up and down at the support tube position, thereby controlling the rotary drilling screw to extend out of the support tube, and controlling the movement of the rotary drilling screw to perform pipe pile tunnel construction;

[0020] S4: When adjusting the length of the spiral piece according to the length of the pipeline, first drive the rotary drilling spiral piece to a position close to the top of the support tube through the threaded rod 2, and then install the connecting spiral piece through the fixed shaft 2. The fixed shaft 2 can be positioned on the outside of the fixed shaft 1 through the connecting rod. Then install multiple sets of fixed rods inside the fixed shaft 2. At this time, the fixed rod can enter the inside of the connecting rod. The fixed shaft 1, the fixed shaft 2 and the connecting rod can be fixed by multiple sets of fixed rods. Then, the threaded rod 2 is used to drive the whole piece to move downward. The reverse rotation of the threaded rod 3 can make the control board disconnect from the inside of the fixed shaft 1. Then, the control moving ring 1 is moved to one end position of the fixed shaft 2. Repeat the operation to make the control board enter the limit groove inside the fixed shaft 2. At this time, the support tube can be rotated to construct the pipe pile tunnel of the new depth.

[0021] In summary, the present application includes the following beneficial technical effects: 1. Through the cooperation between the control plate, the connecting rod and the fixed rod, the present application enables the control plate to enter the inside of the limit groove during the construction of the pipe pile pit. At this time, the rotation of the support tube can drive the rotation of the control plate, which can drive the rotary drilling spiral to rotate for construction. When adjusting the length of the spiral, the fixed shaft 1 is controlled to move to the position close to the top of the support tube, and then the fixed shaft 1 and the fixed shaft 2 are connected through the connecting rod. The fixed shaft 1 and the fixed shaft 2 can be fixed by the connection between the fixed rod and the connecting rod. Then, when the support tube rotates, the spiral of the new length can be driven for construction. There is no need to remove the original spiral or move it to the outside for adjustment, which reduces the downtime during installation and realizes the function of adjusting the length of the spiral according to the depth of the pit, which is conducive to installation according to different processing requirements. 2. This application sets up components such as gear one and gear two, and can transmit the power of motor No. 2 through the meshing of gear one and gear two. At this time, the rotation of gear one and gear two can control the rotation of the support tube. Through the cooperation of gear one and gear two, the rotational power of the support tube is changed from the original direct connection of the motor to an indirect connection, which makes it convenient to leak the internal hollow of the support tube and facilitate the installation and adjustment of the spiral piece. 3. The present application sets components such as movable ring one and movable ring two, which can control the movable ring one and movable ring two to move up and down under the action of threaded rod two. When the rotary drilling spiral piece is under construction, the movable ring one and movable ring two move to the bottom position of the support tube. At this time, the rotary drilling spiral piece is exposed to the outside and can carry out pit construction. When the length of the spiral piece is adjusted, the movable ring one and movable ring two move to the top position of the support tube, and then the control plate is disengaged from the connection with the internal limit groove of the fixed shaft one, and the fixed shaft one and fixed shaft two are connected through the fixed rod, and then the movable ring one and movable ring are moved to the bottom position of the support tube again. At this time, the control plate enters the internal limit groove of the fixed shaft two. Similarly, the overall length can be adjusted according to construction requirements. There is no need to disassemble the original equipment during installation, and construction is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application;

[0023] Figure 2 This is a schematic structural diagram of the fixing frame component in an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the structure of the control mechanism components in the embodiment of the present application;

[0025] Figure 4 This is a schematic structural diagram of the support cylinder component in an embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the structure inside the support cylinder in an embodiment of the present application;

[0027] Figure 6 In the embodiment of this application Figure 5 A partial enlarged view in FIG;

[0028] Figure 7 It is a structural schematic diagram of the fixing rod component in an embodiment of the present application.

[0029] Figure markings: 1. fixed frame; 2. driving mechanism; 201. motor No. 1; 202. threaded rod No. 1; 203. moving frame; 204. limiting rod No. 1; 3. connecting frame; 4. control mechanism; 401. gear No. 1; 402. gear No. 2; 403. motor No. 2; 5. supporting cylinder; 6. moving ring No. 1; 7. control board; 8. fixed shaft No. 1; 9. rotary drilling spiral piece; 10. connecting rod; 11. fixed shaft No. 2; 12. connecting spiral piece; 13. fixed rod; 14. moving ring No. 2; 15. limiting mechanism; 1501. threaded rod No. 2; 1502. motor No. 3; 1503. limiting rod No. 2; 16. supporting frame; 17. limiting groove; 18. positioning groove; 19. threaded rod No. 3; 20. baffle. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 - Figure 7 This application is described in further detail.

[0031] The embodiments of the present application disclose a construction device and method for concrete pipe piles.

[0032] A construction device and method for concrete pipe piles, comprising a fixing frame 1, a driving mechanism 2 being mounted on the outside of the fixing frame 1, a connecting frame 3 being mounted on the outside of the driving mechanism 2, and a controller being mounted on the outside of the fixing frame 1. The controller is electrically connected to electrical equipment within the overall construction equipment; the electrical equipment can be controlled to operate via the controller, and the connecting frame 3 can be controlled to move within the fixing frame 1 via the driving mechanism 2.

[0033] The driving mechanism 2 includes a No. 1 motor 201, the base of the No. 1 motor 201 is fixedly mounted on the outside of the fixed frame 1, the output end of the No. 1 motor 201 is fixedly mounted with a threaded rod 1 202, the outer surface of the threaded rod 1 202 is threadedly connected to the movable frame 203, the outer surface of the movable frame 203 is fixedly mounted to the outer surface of the connecting frame 3, the movable frame 203 and the connecting frame 3 are fixed by multiple sets of bolts, the rotation of the No. 1 motor 201 can control the rotation of the threaded rod 1 202, and the position of the connecting frame 3 can be adjusted by the rotation of the threaded rod 1 202, the interior of the fixed frame 1 is fixedly mounted with a limit rod 1 204, the outer surface of the limit rod 1 204 is slidably connected to the interior of the movable frame 203, the two sides of the connecting frame 3 can be limited by the limit rod, and the connecting frame 3 can move vertically up and down under the limit of the limit rod.

[0034] A control mechanism 4 is installed inside the connecting frame 3, and the internal rotation of the connecting frame 3 is connected to a support tube 5. The support tube 5 is installed inside the connecting frame 3 through multiple sets of support bearings. The interior of the support tube 5 is hollow and is made of high-strength alloy. The control mechanism 4 can control the support tube 5 to rotate inside the connecting frame 3.

[0035] The control mechanism 4 includes a gear 1 401, and the outer surface of the support tube 5 is fixedly installed with the interior of the gear 1 401, and the outer surface of the gear 1 401 is meshed with a gear 2 402, and the rotating shaft of the gear 2 402 is connected to the internal rotation of the connecting frame 3. The outside of the connecting frame 3 is installed with a No. 2 motor 403, and the output end of the No. 2 motor 403 is fixedly installed with one end of the rotating shaft of the gear 2 402. The No. 2 motor 403 can control the rotation of the gear 2 402 through the gear 1 401, and the power of the No. 2 motor 403 can be transmitted to the position of the support tube 5 through the meshing of the gear 1 401 and the gear 2 402. The power of the No. 2 motor 403 can be transmitted through the meshing of the gear 1 401 and the gear 2 402. At this time, the rotation of the gear 1 401 and the gear 2 402 can control the rotation of the support tube 5. The cooperation of the gear 1 401 and the gear 2 402 changes the rotation power of the support tube 5 from the original direct connection of the motor to an indirect connection, which is convenient for exposing the internal hollow of the support tube 5 and facilitating the installation and adjustment of the spiral sheet.

[0036] The support tube 5 is internally slidably connected to a moving ring 6, and the moving ring 6 is internally slidably connected to a control plate 7. A fixed shaft 8 is installed on the outside of the control plate 7, and a rotary drilling spiral piece 9 is installed on the outside of the fixed shaft 8. The fixed shaft 8 and the fixed shaft 2 11 are both internally provided with a limiting groove 17, and there are multiple groups of limiting grooves 17 and control plate 7 in a ring array. The outer surface of the control plate 7 is slidably connected to the inside of the limiting groove 17, and a positioning groove 18 is provided inside the support tube 5. The outer surface of the control plate 7 is slidably connected to the inside of the positioning groove 18. Multiple groups of control plates 7 can enter the inside of the limiting groove 17. With the cooperation of the positioning groove 18 and other components, multiple groups of control plates 7 can rotate with the support tube 5. Therefore, when the control plate 7 enters the inside of the limiting groove 17, the rotation of the control plate 7 can drive the rotary drilling spiral piece 9 to rotate. At this time, the rotary drilling spiral piece 9 can rotate to perform rotary drilling of the pit.

[0037] A connecting rod 10 is installed at one end of the fixed shaft 8, and the outer surface of the connecting rod 10 is slidably connected to the fixed shaft 2 11. A connecting spiral piece 12 is installed on the outside of the fixed shaft 2 11. The cross-section of the connecting rod 10 is a hexagonal structure. Connecting rods 10 are welded to one end of the fixed shaft 1 8 and the fixed shaft 2 11. Due to the obstruction of the hexagonal connecting rod 10, the fixed shaft 1 8 and the fixed shaft 2 11 can rotate synchronously. Therefore, when the fixed shaft 2 11 is connected to the fixed shaft 1 8 through the connecting rod 10, it can rotate with the support tube 5.

[0038] The internal thread of the fixed shaft 2 11 is connected with a fixing rod 13, and the outer surface of the fixing rod 13 is connected to the internal thread of the connecting rod 10. The fixing rods 13 are arranged at intervals in the upper and lower parts of the fixed shaft 2 11. When the fixed shaft 1 8 and the fixed shaft 2 11 are connected, a group of connecting rods 10 can be fixed inside the fixed shaft 2 11 through multiple groups of fixing rods 13. The connecting rods 10 are fixed by multiple groups of fixing rods 13 in different positions, which reduces the shear force on the connecting rods 10 in the same direction and increases the stability during overall use. When the fixed shaft 1 8 and the fixed shaft 2 11 are connected, the length of the overall spiral piece can be extended. Therefore, when the pipe pile excavator is used, the length of the spiral piece can be adjusted according to the needs of the pit.

[0039] The outer surface of the support tube 5 is slidably connected with a moving ring 2 14, and the control plate 7 moves inside the moving ring 1 6 and the moving ring 2 14. A limiting mechanism 15 is installed on the outside of the moving ring 2 14. The limiting mechanism 15 can control the moving ring 1 6 and the moving ring 2 14 to move up and down, and can further control the position of the control plate 7. The limiting mechanism 15 includes a threaded rod 2 1501. The outer surface of the threaded rod 2 1501 is rotatably connected to the inside of the support tube 5. The outer surface of the threaded rod 2 1501 is threadedly connected to the inside of the moving ring 2 14. A third motor 1502 is installed on the outside of the support tube 5. The output end of the third motor 1502 is fixedly installed to one end of the threaded rod 2 1501. Multiple sets of limit rods 1503 are fixedly installed on the outer surface of the support tube 5. The outer surface of the limit rod 1503 is slidably connected to the inside of the movable ring 14. The threaded rod 1501 can control the movement of the movable ring 14. When the rotary drilling spiral piece 9 is used, the fixed shaft 18 can be controlled to move one end close to the limit groove 17 to the lower end position of the support tube 5. At this time, the rotation of the support tube 5 can control the rotation of the rotary drilling spiral piece 9 to carry out pit construction. When the fixed shaft 2 11 is connected, the movable ring 14 is controlled to move to a position close to the top of the support tube 5. At this time, the connecting spiral piece 12 can be installed near the top of the support tube 5 without moving the entire spiral piece out of the pit, which is more convenient during installation.

[0040] A support frame 16 is installed on the outside of the moving ring 2 14, and a threaded rod 3 19 is connected to the internal thread of the support frame 16. The outer surface of the threaded rod 3 19 is rotatably connected to the outer surface of the control board 7. A baffle 20 is fixedly installed on the outer surface of the control board 7. The outer surface of the baffle 20 contacts the outer surface of the moving ring 1 6. The baffle 20 can limit the connection between the control board 7 and the moving ring 1 6. A control handle is installed at one end of the threaded rod 3 19. By rotating the control handle, the control board 7 can be driven to move inside the moving ring 1 6 and the moving ring 2 14. At this time, the control board 7 can release the fixation of the fixed shaft 1 8. When the fixed shaft 1 8 and the fixed shaft 2 11 are connected and fixed, the control board 7 moves to the top position of the fixed shaft 2 11 under the control of the moving ring 2 14. At this time, the control board 7 can fix the fixed shaft 2 11. At this time, the fixed shaft 2 11 and the power end of the fixed shaft 2 11 are transferred to the position of the fixed shaft 2 11.

[0041] The method of use includes the following steps:

[0042] S1: When in use, first fix the fixed shaft 8 and place it inside the support tube 5. Then rotate the threaded rod 3 19 to allow the control plate 7 to enter the limiting groove 17. The control plates 7 arranged in a circular array at this time fix the limiting groove 17 to position the fixed shaft 8 in the middle position of the support tube 5.

[0043] S2: During the construction of the pile tunnel, the second motor 403 controls the rotation of the second gear 402. The meshing of the first gear 401 and the second gear 402 controls the rotation of the support tube 5 inside the connecting frame 3. At this time, the support tube 5 is controlled to move downward by the action of the first threaded rod 202. The second motor 403 controls the rotation of the rotary drilling screw 9 to perform rotary drilling construction on the pile tunnel.

[0044] S3: The rotation of the second threaded rod 1501 enables the first movable ring 6 and the second movable ring 14 to move up and down at the position of the support tube 5, thereby controlling the rotary drilling spiral piece 9 to extend outside the support tube 5, and controlling the rotary drilling spiral piece 9 to move for pile tunnel construction;

[0045] S4: When adjusting the length of the spiral piece according to the length of the pipeline, first drive the rotary drilling spiral piece 9 to move to a position close to the top of the support tube 5 through the threaded rod 2 1501, and then install the connecting spiral piece 12 through the fixed shaft 2 11. The fixed shaft 2 11 can be positioned on the outside of the fixed shaft 1 8 through the connecting rod 10. Then, multiple sets of fixing rods 13 are installed inside the fixed shaft 2 11. At this time, the fixing rod 13 can enter the inside of the connecting rod 10. The fixed shaft 1 8, the fixed shaft 2 11 and the connecting rod 10 can be fixed by multiple sets of fixing rods 13. Then, the threaded rod 2 1501 is used to drive the whole to move downward. The reverse rotation of the threaded rod 3 19 can make the control board 7 disconnected from the inside of the fixed shaft 1 8. Then, the control moving ring 1 6 is moved to one end position of the fixed shaft 2 11. Repeat the operation to make the control board 7 enter the limit groove 17 inside the fixed shaft 2 11. At this time, the support tube 5 can rotate to construct the pipe pile tunnel of the new depth.

[0046] The implementation principle of the construction equipment and method for concrete pipe piles in the embodiment of the present application is as follows: when installing the rotary drilling spiral piece 9, the fixed shaft 1 8 is placed inside the support cylinder 5, and then the threaded rod 3 19 is rotated to make the control plate 7 enter the limit groove 17 inside the fixed shaft 1 8. At this time, the support cylinder 5 can rotate under the control of the gear 1 401 and the gear 2 402. At this time, the support cylinder 5 can drive the rotary drilling spiral piece 9 to rotate through the control plate 7 to perform pit construction;

[0047] The second threaded rod 1501 can drive the second movable ring 14 to move outside the support tube 5, and can control the control plate 7 and one end of the fixed shaft 8, so as to control the rotary drilling spiral piece 9 to move to the bottom of the support tube 5;

[0048] When installing the connecting spiral piece 12, one end of the fixed shaft 18 is moved to the position near the top of the support tube 5 through the threaded rod 2 1501, and then one end of the fixed shaft 2 11 is installed above the fixed shaft 18 through the connecting rod 10, and a group of connecting rods 10 are fixed to the inside of the fixed shaft 2 11 through multiple groups of fixing rods 13. Then, the rotation of the threaded rod 2 1501 can control the fixed shaft 1 8 and the fixed shaft 2 11 after being fixed as a whole to move toward the bottom of the support tube 5. At this time, the fixed shaft 1 8 and the fixed shaft 2 11 can rotate synchronously under the action of the support tube 5, and then the threaded rod 3 19 is rotated in the opposite direction to make the control board 7 disengage from the contact with the internal limit groove 17 of the fixed shaft 1 8, and finally the control board 7 is connected to the internal limit groove 17 of the fixed shaft 2 11. At this time, the power end of the fixed shaft 1 8 and the fixed shaft 2 11 is changed to the position of one end of the fixed shaft 2 11, and spiral pieces of different lengths can be installed by analogy.

[0049] 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 construction device for concrete pipe piles, comprising a fixing frame (1), characterized in that: A driving mechanism (2) is installed on the outside of the fixing frame (1), a connecting frame (3) is installed on the outside of the driving mechanism (2), and a control mechanism (4) is installed on the inside of the connecting frame (3); The interior of the connecting frame (3) is rotatably connected to a support cylinder (5), the interior of the support cylinder (5) is slidably connected to a moving ring (6), the interior of the moving ring (6) is slidably connected to a control plate (7), the exterior of the control plate (7) is mounted with a fixed shaft (8), the exterior of the fixed shaft (8) is mounted with a rotary drilling spiral piece (9), one end of the fixed shaft (8) is mounted with a connecting rod (10), the outer surface of the connecting rod (10) is slidably connected to a fixed shaft (11), the exterior of the fixed shaft (11) is mounted with a connecting spiral piece (12), and the interior of the fixed shaft (11) is threadedly connected to a fixed rod (13); The outer surface of the support cylinder (5) is slidably connected to the second moving ring (14), the control plate (7) moves inside the first moving ring (6) and the second moving ring (14), the outer portion of the second moving ring (14) is provided with a limiting mechanism (15), and the outer portion of the second moving ring (14) is provided with a support frame (16); The interior of the fixed shaft 1 (8) and the fixed shaft 2 (11) are provided with a limiting groove (17), the limiting groove (17) and the control plate (7) are both arranged in a ring array in multiple groups, the outer surface of the control plate (7) is slidably connected to the interior of the limiting groove (17), the interior of the support cylinder (5) is provided with a positioning groove (18), the outer surface of the control plate (7) is slidably connected to the interior of the positioning groove (18); The cross section of the connecting rod (10) is a hexagonal structure, the outer surface of the fixing rod (13) is connected to the inner thread of the connecting rod (10), and the fixing rod (13) is arranged in an upper and lower interval inside the fixed shaft (11); The limiting mechanism (15) includes a second threaded rod (1501), the outer surface of the second threaded rod (1501) is rotatably connected to the interior of the support tube (5), the outer surface of the second threaded rod (1501) is threadedly connected to the interior of the second moving ring (14), a third motor (1502) is installed on the outside of the support tube (5), the output end of the third motor (1502) is fixedly installed to one end of the second threaded rod (1501), and a plurality of groups of second limiting rods (1503) are fixedly installed on the outer surface of the support tube (5), and the outer surface of the second limiting rod (1503) is slidably connected to the interior of the second moving ring (14).

2. The concrete pipe pile construction equipment according to claim 1, characterized in that: The driving mechanism (2) comprises a No. 1 motor (201), the base of the No. 1 motor (201) is fixedly mounted on the outside of the fixed frame (1), a threaded rod (202) is fixedly mounted on the output end of the No. 1 motor (201), the outer surface of the threaded rod (202) is threadedly connected to a movable frame (203), the outer surface of the movable frame (203) is fixedly mounted on the outer surface of the connecting frame (3), a limiting rod (204) is fixedly mounted on the inside of the fixed frame (1), and the outer surface of the limiting rod (204) is slidably connected to the inside of the movable frame (203).

3. The concrete pipe pile construction equipment according to claim 1, characterized in that: The control mechanism (4) includes a gear 1 (401), the outer surface of the support cylinder (5) is fixedly mounted on the inside of the gear 1 (401), the outside of the gear 1 (401) is meshed with a gear 2 (402), the rotating shaft of the gear 2 (402) is rotatably connected to the inside of the connecting frame (3), the outside of the connecting frame (3) is mounted with a No. 2 motor (403), and the output end of the No. 2 motor (403) is fixedly mounted on one end of the rotating shaft of the gear 2 (402).

4. The concrete pipe pile construction equipment according to claim 1, characterized in that: The inner thread of the support frame (16) is connected to a threaded rod three (19), the outer surface of the threaded rod three (19) is rotatably connected to the outer surface of the control plate (7), and a baffle (20) is fixedly installed on the outer surface of the control plate (7), and the outer surface of the baffle (20) is in contact with the outer surface of the movable ring one (6).

5. A method for constructing concrete pipe piles, utilizing the concrete pipe pile construction equipment according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1: When in use, first fix the fixed shaft (8) and place the fixed shaft (8) inside the support tube (5), then rotate the threaded rod (19) to allow the control plate (7) to enter the inside of the limiting groove (17). At this time, the control plate (7) arranged in a circular array fixes the limiting groove (17) to position the fixed shaft (8) in the middle position of the support tube (5); S2: During the construction of the pipe pile tunnel, the second motor (403) controls the rotation of the second gear (402), and the meshing of the first gear (401) and the second gear (402) can control the rotation of the support cylinder (5) inside the connecting frame (3). At this time, the support cylinder (5) can be controlled to move downward by the action of the first threaded rod (202), and the rotary excavation spiral piece (9) can be controlled to rotate by the action of the second motor (403) to perform rotary excavation construction on the pipe pile tunnel; S3: By rotating the second threaded rod (1501), the first movable ring (6) and the second movable ring (14) can be moved up and down at the position of the support tube (5), and the rotary excavation spiral piece (9) can be controlled to extend outside the support tube (5), and the rotary excavation spiral piece (9) can be controlled to move to perform pipe pile tunnel construction; S4: When adjusting the length of the spiral piece according to the length of the pipeline, first, the spiral piece (9) is driven by the second threaded rod (1501) to move to a position close to the top of the support tube (5), and then the connecting spiral piece (12) is installed through the second fixed shaft (11). The second fixed shaft (11) can be positioned outside the first fixed shaft (8) through the connecting rod (10), and then multiple sets of fixed rods (13) are installed inside the second fixed shaft (11). At this time, the fixed rods (13) can enter the inside of the connecting rod (10). Through the multiple sets of fixed rods (1 3) The fixed shaft 1 (8), the fixed shaft 2 (11) and the connecting rod (10) can be fixed, and then the threaded rod 2 (1501) can be used to drive the whole to move downward. The threaded rod 3 (19) can be rotated in the opposite direction to make the control plate (7) disconnected from the inside of the fixed shaft 1 (8). Then, the movable ring 1 (6) is controlled to move to one end position of the fixed shaft 2 (11). The operation is repeated to make the control plate (7) enter the limit groove (17) inside the fixed shaft 2 (11). At this time, the support tube (5) can be rotated to construct the pipe pile tunnel of the new depth.

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