A concrete cast-in-place pile casting device and casting process

Abstract

This invention discloses a concrete casting pile pouring device and pouring process, including a positioning structure installed at the pile hole location. The positioning structure is equipped with a conical pouring cylinder for pouring concrete into the pile hole and multiple circumferentially evenly distributed supports for supporting the reinforcing cage stirrups. The pouring device also includes a guide belt and a winding mechanism for retrieving the guide belt. The top of the guide belt is clamped to the root of the conical pouring cylinder, and a foam float is installed at the bottom. The foam float slides up and down along the longitudinal reinforcement of the reinforcing cage, and multiple vibrators are installed circumferentially and at an angle on the foam float. The winding mechanism is installed on the outside of the conical pouring cylinder. The guide belt vibrates and compacts the concrete as it is poured into the pile, while simultaneously automatically winding up the guide belt, preventing deflection during the automatic winding process.

Description

Technical Field

[0001] This invention relates to the field of cast-in-place pile technology, specifically to a concrete cast-in-place pile casting device and casting process. Background Technology

[0002] A cast-in-place concrete pile is a type of pile where a hole is drilled directly at the pile location on-site, and then concrete is poured into the hole or a reinforcing cage is placed before pouring concrete. Its advantages include the ability to select the pile diameter as needed, allowing for the construction of piles with diameters much larger than precast piles. Compared to the hammer-driven method for driving piles, it produces significantly less construction noise and vibration, making it suitable for various foundation types. Existing cast-in-place concrete piles generally fall into two categories: driven pipe piles and bored piles. Driven pipe piles utilize hammer-driven equipment to drive and extract the pipe, hence the name "hammer-driven pipe piles." However, due to the significant noise and vibration generated during construction, which can affect surrounding buildings, they are unsuitable for use in urban areas, and some cities have banned their use in urban areas. Bored piles are more commonly used. There are various methods for drilling holes for bored piles, including using drilling rigs or manual drilling. After cleaning the hole, a precast reinforcing cage is vertically lowered into the hole, positioned, and secured. Concrete is then poured in using a tremie pipe.

[0003] However, bored concrete piles also have their drawbacks: the quality of the concrete pouring has a significant impact on the pile's bearing capacity. For example, air bubbles during pouring can form honeycomb structures in the pile, severely reducing its load-bearing capacity. Current technology simply utilizes the weight of high-slump concrete to form the pile, without vibration or mixing to ensure density. This is because vibrating and mixing concrete piles presents significant challenges. First, the pile length is typically several meters to tens or even twenty meters, making it impossible for a vibrator to reach such depths. Second, even if the vibrator is extended and inserted into the hole using a guide wire, the inability to observe the internal structure hinders effective vibration. Solving the vibration and mixing problems in bored concrete piles, and removing air bubbles from the poured concrete, would significantly improve the density and increase the pile's load-bearing capacity. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Therefore, a concrete casting pile pouring device and pouring process are proposed. The device uses a guide belt to vibrate and compact the concrete as it is poured into the pile, while also automatically winding up the guide belt to prevent it from deflecting during the automatic winding process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A concrete pouring pile device includes a positioning structure installed at the pile hole location. The positioning structure is equipped with a conical pouring cylinder for pouring into the pile hole and multiple circumferentially evenly distributed supports for supporting the reinforcing cage stirrups. The pouring device also includes a guide belt and a winding mechanism for retrieving the guide belt. The top of the guide belt is clamped to the root of the conical pouring cylinder, and a foam float is installed at the bottom. The foam float slides up and down along the longitudinal bars of the reinforcing cage, and multiple vibrators are installed circumferentially and at an angle on the foam float. The winding mechanism is installed on the outside of the conical pouring cylinder.

[0007] Based on the above embodiments, the following improvements are made: two types of conical buffer belts of different specifications are arranged sequentially along the length of the guide belt, and the two sets of conical buffer belts of different specifications are arranged alternately and the outlets of the conical buffer belts do not overlap.

[0008] Based on the above embodiments, the following improvements are made: the winding mechanism includes two winding units symmetrically distributed on both sides of the conical pouring cylinder. Each winding unit includes a fixed body fixedly installed on the outside of the conical pouring cylinder. An active rotating disk and a winding roller are rotatably installed on the fixed body. The winding roller and the active rotating disk are connected by a pawl, ratchet, and gear structure to form a one-way transmission cooperation. A drum is provided on the active rotating disk, and a connecting rope is wound on the drum. The free end of the connecting rope is installed on the foam float. A spring is installed between the active rotating disk and the fixed body.

[0009] Based on the above embodiment, the following improvements are made: a one-way anti-reverse structure is provided on the outer side of the conical pouring cylinder located above the winding mechanism. The one-way anti-reverse structure includes a fixed ring, and multiple circumferentially distributed one-way anti-reverse claws are rotatably installed on the inner bottom of the fixed ring. A linkage adjustment structure is installed between the one-way anti-reverse claws and the fixed ring, and the opening and closing state of the one-way anti-reverse claws is adjusted by the linkage adjustment structure.

[0010] Based on the above embodiments, the following improvements are made: the linkage adjustment structure includes a rotating rod group rotatably arranged inside the fixed ring. The number of rotating rod groups is the same as the number of one-way anti-reverse claws. The rotating nodes of the rotating rod groups are driven by gears, and the free ends are rotatably arranged on the back of the one-way anti-reverse claws. An adjusting rod is installed on the back of one of the one-way anti-reverse claws, and a spring is fitted on the outside of the adjusting rod. The free end of the adjusting rod passes through the fixed ring and is partially exposed on the outside of the fixed ring, while a limit block is installed. The spring is located between the one-way anti-reverse claw and the fixed ring.

[0011] Based on the above embodiments, the following improvements are made: the top of the one-way anti-reverse claw is provided with an arc-shaped plate with a central angle of 180°.

[0012] Based on the above embodiments, the following improvements are made: the take-up roller includes two sets of symmetrically arranged roller groups. Each roller group includes a mounting shaft flexibly mounted on a fixed body and a roller body mounted on the mounting shaft via bearings. Both ends of the roller body are connected to limiters via elastic flexible bodies. The limiters are fixedly arranged on the mounting shaft and have multiple balls on one side relative to the fixed body.

[0013] Based on the above embodiments, the following improvements are made: the mounting shaft includes two symmetrically arranged shafts, with abutment plates installed at both ends of the shafts. Both abutment plates are slidably arranged inside the roller body, and an elastic body is installed between the abutment plates.

[0014] Based on the above embodiments, the following improvements are made: the support body includes a rotating structure rotatably mounted on the positioning structure and a support structure for supporting the rotating structure; the positioning structure is provided with a hidden groove and a positioning body for adapting to the support structure is provided inside the hidden groove; and a bearing body for supporting the steel cage stirrups is provided on the top of the rotating structure.

[0015] A concrete casting pile casting device includes the following steps:

[0016] First, a steel cage is hoisted and inserted into the pile hole using a crane. The positioning structure is then installed at the pile hole location. The stability of the steel cage is ensured by adjusting the stirrups of the support body to support the steel cage.

[0017] Secondly, by adjusting the adjusting rod of the linkage adjusting structure, the one-way anti-reverse claw opens the storage space inside the fixed ring. The foam float will move vertically down along the longitudinal bar of the steel cage, and at the same time, the guide belt will move down to the bottom of the steel cage. The external adjusting rod will cause the one-way anti-reverse claw to close the storage space inside the fixed ring. During the process, the connecting rope will drive the active rotating disk to rotate and complete the energy storage of the spring.

[0018] Next, concrete is injected into the conical pouring cylinder. The concrete will pass through the conical buffer zone inside the guide belt to gradually reduce the impact on the bottom steel cage.

[0019] Finally, after the concrete enters the bottom of the pile hole, it will automatically lift the foam float. During this process, the vibrator on the foam float will compact the concrete that has just entered the pile hole. The foam float will gradually rise along the longitudinal bars of the steel cage as the amount of concrete inside the pile hole increases. At this time, the active rotating disc will drive the winding roller to wind up the guide belt under the action of the spring. The wound guide belt will enter the storage space inside the inverted fixed ring until the foam float rises to the pile hole. The remaining part only needs to be backfilled with concrete and compacted by the vibrator.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention utilizes a foam float to adjust the vibrator's vibration zone according to the amount of concrete poured, effectively compacting the concrete as it enters the pile hole via the guide belt, thus solving a problem in existing technologies. Simultaneously, based on the position of the foam float, a connecting rope and a spring mechanism drive the rotating disk to automatically wind up the guide belt. The wound guide belt is then contained within a storage space inside a fixing ring by a one-way anti-reverse claw; the storage space can be adjusted by a linkage mechanism to open and close the one-way anti-reverse claw. The winding of the guide belt is completed smoothly and without deviation by the roller body and elastic flexible body of the winding roller. Attached Figure Description

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

[0023] Figure 2 This is a schematic diagram of the overall structure of the positioning structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the overall structure of the positioning body of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the fixing ring of the present invention;

[0026] Figure 5 This is a partial schematic diagram of the winding structure of the present invention;

[0027] Figure 6 This is a diagram showing the transmission relationship between the active rotating disk and the take-up roller of the present invention.

[0028] Figure 7 This is a schematic diagram of the overall structure of the take-up roller of the present invention;

[0029] Figure 8 This is a schematic diagram of the internal structure of the take-up roller of the present invention;

[0030] Figure 9 This is a top view of the foam float of the present invention;

[0031] Figure 10 This is a schematic diagram of the overall structure of another structural form of the present invention;

[0032] Figure 11 This is a top view showing the connection relationship between the support body and the positioning ring of the present invention;

[0033] Figure 12 This is a cross-sectional view showing the connection relationship between the support body and the positioning ring of the present invention;

[0034] Figure 13 This is a cross-sectional view showing the connection relationship between the support body and the positioning ring of the present invention;

[0035] Figure 14This is a schematic diagram of the internal structure of the elastic stretching body of the present invention.

[0036] In the diagram: 10. Positioning structure; 20. Conical pouring cylinder; 21. Fixed body; 22. Active rotating disk; 23. Rewinding roller; 24. Drum; 25. Connecting rope; 26. Spring; 27. Fixing ring; 28. One-way anti-reverse claw; 29. ​​Rotating rod assembly; 210. Gear; 211. Adjusting rod; 212. Limiting block; 213. Limiting body; 214. Shaft; 215. Abutment plate; 216. Elastic body; 217. Roller body; 218. Mounting shaft; 30. Support body; 31. Rotating structure; 32. Support structure; 33. Positioning body; 34. Hidden groove; 35. Bearing body; 40. Guide belt; 41. Conical buffer belt; 50. Foam float; 60. Vibrator. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] Example 1: A concrete cast-in-place pile pouring device includes a positioning structure 10 installed at the pile hole location. The positioning structure 10 is equipped with a conical pouring cylinder 20 for pouring concrete into the pile hole and multiple circumferentially evenly distributed support bodies 30 for supporting the reinforcing cage stirrups. Each support body 30 includes a rotating structure 31 rotatably mounted on the positioning structure 10 and a support structure 32 for supporting the rotating structure 31. The positioning structure 10 has a hidden groove 34, and a positioning body 33 adapted to the support structure 32 is provided inside the hidden groove 34. A bearing body 35 for supporting the reinforcing cage stirrups is provided on the top of the rotating structure 31. When the reinforcing cage is hoisted into the pile hole, the rotating structure 31 is opened, and the support structure 32 is fixed by the positioning body 33 on the positioning structure 10. The reinforcing cage is then positioned and installed using the bearing body 35.

[0040] The pouring device also includes a guide belt 40 and a winding mechanism for retrieving the guide belt 40. The top of the guide belt 40 is clamped to the root of the conical pouring cylinder 20, and a foam float 50 is installed at the bottom. The foam float 50 is slidably arranged along the longitudinal bars of the reinforcing cage, and multiple vibrators 60 are installed circumferentially and obliquely on the foam float 50. The foam float 50 can adaptively adjust its height according to the concrete entering through the guide belt 40, and can also adjust the vibration of the vibrators 60 to vibrate the concrete at different heights. The winding mechanism is installed on the outside of the conical pouring cylinder 20. The winding mechanism includes two winding units symmetrically distributed on both sides of the conical pouring cylinder 20. The winding unit includes a fixed body 21 fixedly installed on the outside of the conical pouring cylinder 20. An active rotating disk 22 and a winding roller 23 are rotatably installed on the fixed body 21. The winding roller 23 and the active rotating disk 22 are connected by a pawl, ratchet, and gear structure to form a one-way transmission cooperation (e.g., Figure 5 and Figure 6 As shown), a drum 24 is provided on the active rotating disk 22 and a connecting rope 25 is wound on the drum 24. The free end of the connecting rope 25 is installed on the foam float 50. A spring 26 is installed between the active rotating disk 22 and the fixed body 21.

[0041] In operation, the guide belt 40, foam float 50, and vibrator 60 are lowered together. The foam float 50 moves up and down along the longitudinal bars of the reinforcing cage until it reaches the base of the cage (near the bottom of the pile hole). During its descent, the foam float 50 is driven by the connecting rope 25 to rotate the active rotating disk 22, which stores energy in the spring 26. Concrete enters the cone-shaped discharge cylinder 20 through the pumping pipe of the pump truck and then into the guide belt 40. The concrete entering the pile hole pushes the foam float 50 upward, while the vibrator 60 on top of it compacts the newly entered concrete. As the foam float 50 rises, the external force at the free end of the connecting rope 25 decreases, causing the active rotating disk 22 to move in the opposite direction. This, along with the ratchet, pawl, and gear structure, drives the winding roller 23 to rotate, winding the guide belt 40 upward. The pawl and the drum 24 are fixedly arranged.

[0042] Example 2: Based on the above example, the following improvements are made: Two types of conical buffer belts 41 of different specifications are sequentially arranged along the length of the guide belt 40. The two sets of conical buffer belts 41 of different specifications are staggered and their outlets do not overlap. The staggered arrangement of the conical buffer belts 41 inside can reduce the kinetic energy of the concrete entering the pile hole.

[0043] Example 3: Based on the above example, the following improvements are made: A one-way anti-reverse structure is provided on the outer side of the conical pouring cylinder 20 located above the winding mechanism. The one-way anti-reverse structure includes a fixed ring 27. Multiple circumferentially distributed one-way anti-reverse claws 28 are rotatably mounted on the inner bottom of the fixed ring 27. The top of the one-way anti-reverse claws 28 is provided with an arc-shaped plate with a central angle of 180°. A linkage adjustment structure is installed between the one-way anti-reverse claws 28 and the fixed ring 27. The opening and closing state of the one-way anti-reverse claws 28 is adjusted by the linkage adjustment structure. The linkage adjustment structure includes a rotating... The rotating rod group 29 is arranged inside the fixed ring 27. The number of rotating rod groups 29 is the same as the number of one-way anti-reverse claws 28. The rotating node of the rotating rod group 29 is driven by gear 210. The free end is arranged on the back of the one-way anti-reverse claw 28. An adjusting rod 211 is installed on the back of one of the one-way anti-reverse claws 28, and a spring is fitted on the outside of the adjusting rod 211. The free end of the adjusting rod 211 passes through the fixed ring 27 and is partially exposed on the outside of the fixed ring 27. A limit block 212 is installed at the same time. The spring is located between the one-way anti-reverse claw 28 and the fixed ring 27.

[0044] After being wound up, the guide belt 40 will enter the storage space enclosed by the one-way anti-reverse claw 28 and the fixing ring 27. The conical buffer belt 41 is made of flexible material. When the guide belt 40 initially falls, the one-way anti-reverse claw 28 can be opened to open the storage area by the external adjustment rod 211, which facilitates the falling of the guide belt 40.

[0045] Example 4: Based on the above example, the following improvements are made: The take-up roller 23 includes two sets of symmetrically arranged roller groups. The roller group includes a mounting shaft 218 flexibly mounted on the fixed body 21 and a roller body 217 mounted on the mounting shaft 218 via bearings. The two ends of the roller body 217 are connected to a limiting body 213 through an elastic flexible body (rubber pad). The limiting body 213 is fixedly arranged on the mounting shaft 218 and has multiple balls on one side relative to the fixed body 21. The mounting shaft 218 includes two symmetrically arranged shaft bodies 214. The two ends of the shaft body 214 are equipped with abutment plates 215. The two abutment plates 215 are slidably arranged inside the roller body 217 and an elastic body 216 is installed between the abutment plates 215.

[0046] By squeezing the two limiting bodies 213 closer together, the two abutments 215 squeeze the elastic body 216 (spring), thereby installing the mounting shaft 218 into the corresponding hole. After installation in the hole, the elastic body 216 acts on the two abutments 215 to make the limiting body 213 abut against the fixed body 21 via ball bearings. One end of the mounting shaft 218 forms a one-way transmission connection through a ratchet pawl, gear structure and drive rotating disk 22. A rubber pad is provided between the limiting body 213 and the roller body 217 to fit against the outside of the guide belt 40 and complete the winding with a greater degree of friction. At the same time, the presence of the rubber pad can also prevent the guide belt 40 from running off-center.

[0047] Example 5: Based on the above example, the following improvement is made: A clamping mechanism is installed on one side of the top of the positioning structure 10. The clamping mechanism includes a support rod 11 fixedly installed on the positioning structure 10 and a support body 12 installed at the end of the support rod 11. An installation ring 13 is movably installed on the support body 12, and a shock-absorbing component is installed between the support body 12 and the installation ring 13. By using the support body 12, the installation ring 13, and the shock-absorbing component on the support rod 11 to clamp the pumping pipe of the pump truck, the resonance problem between the concrete being injected into the conical pouring cylinder 20 can be eliminated at the same time.

[0048] The shock absorption assembly includes an elastic expansion body 14 and a spring assembly 15. The elastic expansion body 14 has a cavity and a shock absorption circulation structure inside. The shock absorption circulation structure includes an annular cavity surrounding the cavity and two sets of unidirectional conduction structures 17 arranged alternately inside the annular cavity. Both sets of unidirectional conduction structures 17 are arranged with one end larger than the other, and the outlets of the small ends of the two sets of unidirectional conduction structures 17 are concentric circles with different diameters. The annular cavity is filled with buffer solution with a volume of 1 / 2 to 2 / 3.

[0049] The overall structure of the elastic telescopic body 14 is a waist-shaped structure. Both the inner and outer sides of the elastic telescopic body 14 are equipped with connecting structures 16 for connecting the support body 12 and the mounting ring 13. The connecting structure 16 is composed of multiple arc-shaped thin plates with different central angles, and the arc-shaped thin plates are integrally arranged with the elastic telescopic body 14. The support body 12 and the mounting ring 13 are provided with T-shaped connecting grooves 18 on the side opposite to the elastic telescopic body 14. The spring assembly 15 is located above the elastic telescopic body 14 and is composed of several springs with different elastic coefficients. When installing the support body 12 and the mounting ring 13 (for installing the pumping pipe of the pump truck), the inner and outer connecting structures 16 of the elastic expansion body 14 are first adapted to the corresponding T-shaped connecting grooves 18. The waist-shaped structure of the elastic expansion body 14 is squeezed so that the two connecting structures 16 enter the T-shaped connecting grooves 18. After the waist-shaped structure of the elastic expansion body 14 is reset, the mounting ring 13 and the support body 12 can be pulled to each other, so that the arc-shaped thin sheet of the connecting structure 16 is in an outward stress state. When the pumping pipe vibrates on the horizontal plane, the internal buffer solution of the spring group with different elastic coefficients and the shock absorption circulation structure will have a unidirectional and damped flow due to the vibration of the pumping pipe, so that the resonance problem between the pumping pipe and the positioning structure 10 is eliminated while the shock absorption is performed.

[0050] A concrete casting pile casting device includes the following steps:

[0051] First, a steel cage is hoisted and inserted into the pile hole using a crane. The positioning structure 10 is installed at the pile hole position. The stability of the steel cage is ensured by adjusting the stirrups of the support body 30 to support the steel cage.

[0052] Secondly, by adjusting the adjusting rod 211 of the linkage adjusting structure, the one-way anti-reverse claw 28 is driven to open the storage space inside the fixed ring 27. The foam float 50 will move vertically down along the longitudinal bar of the steel cage, and at the same time, the guide belt 40 will be driven down to the bottom of the steel cage. The external adjusting rod 211 causes the one-way anti-reverse claw 28 to close the storage space inside the fixed ring 27. During the process, the connecting rope 25 will drive the active rotating disk 22 to rotate and the spring 26 will complete the energy storage.

[0053] Next, concrete is injected into the conical pouring cylinder 20. The concrete will pass through the conical buffer zone 41 inside the guide belt 40 to gradually buffer and reduce the impact on the bottom steel cage.

[0054] Finally, after the concrete enters the bottom of the pile hole, it will automatically lift the foam float 50. During the process, the vibrator 60 on the foam float 50 will compact the concrete that has just entered the pile hole. The foam float 50 will gradually rise along the longitudinal bars of the steel cage as the amount of concrete inside the pile hole increases. At this time, the active rotating disc 22 will drive the winding roller 23 to wind up the guide belt 40 under the action of the spring 26. The wound guide belt 40 will enter the storage space inside the inverted fixing ring 27 until the foam float 50 rises to the pile hole. The remaining part only needs to be backfilled with concrete and compacted by the vibrator 60.

[0055] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made to the technical solutions and inventive concepts of the present invention should all be covered within the scope of protection of the present invention.

Claims

1. A concrete cast-in-place pile pouring device, characterized in that, The device includes a positioning structure (10) installed at the pile hole location. The positioning structure (10) is equipped with a conical pouring cylinder (20) for pouring into the pile hole and multiple supports (30) evenly arranged in the circumferential direction for supporting the stirrups of the steel cage. The pouring device also includes a guide belt (40) and a winding mechanism for recycling the guide belt (40). The top of the guide belt (40) is clamped to the root of the conical pouring cylinder (20), and a foam float (50) is installed at the bottom. The foam float (50) slides up and down along the longitudinal bars of the steel cage, and multiple vibrators (60) are installed in the circumferential direction and at an angle on the foam float (50). The winding mechanism is installed on the outside of the conical pouring cylinder (20). The winding mechanism includes two winding units symmetrically distributed on both sides of the conical pouring cylinder (20). Each winding unit includes a fixed body (21) fixedly installed on the outside of the conical pouring cylinder (20). An active rotating disk (22) and a winding roller (23) are rotatably installed on the fixed body (21). The winding roller (23) and the active rotating disk (22) are connected by a unidirectional transmission mechanism through a pawl, ratchet, and gear structure. A drum (24) is provided on the active rotating disk (22) and a connecting rope (25) is wound on the drum (24). The free end of the connecting rope (25) is installed on the foam float (50). A spring (26) is installed between the active rotating disk (22) and the fixed body (21). A one-way anti-reverse structure is provided on the outside of the conical pouring cylinder (20) located above the winding mechanism. The one-way anti-reverse structure includes a fixed ring (27). Multiple circumferentially distributed one-way anti-reverse claws (28) are rotatably installed on the inner bottom of the fixed ring (27). A linkage adjustment structure is installed between the one-way anti-reverse claws (28) and the fixed ring (27). The opening and closing state of the one-way anti-reverse claws (28) is adjusted by the linkage adjustment structure. The linkage adjustment structure includes a rotating rod group (29) rotatably arranged inside the fixed ring (27). The number of rotating rod groups (29) is the same as the number of one-way anti-reverse claws (28). The rotating nodes of the rotating rod group (29) are driven by gears (210), and the free end is rotatably arranged on the back of the one-way anti-reverse claw (28). An adjusting rod (211) is installed on the back of one of the one-way anti-reverse claws (28), and a spring is fitted on the outside of the adjusting rod (211). The free end of the adjusting rod (211) passes through the fixed ring (27) and is partially exposed on the outside of the fixed ring (27). A limit block (212) is installed at the same time. The spring is located between the one-way anti-reverse claw (28) and the fixed ring (27).

2. The concrete casting pile pouring device according to claim 1, characterized in that, The guide belt (40) is provided with two types of conical buffer belts (41) arranged in sequence along the length direction. The two sets of conical buffer belts (41) are arranged in an alternating manner and the outlets of the conical buffer belts (41) do not overlap.

3. The concrete casting pile pouring device according to claim 1, characterized in that, The top of the one-way anti-reverse claw (28) is provided with an arc plate with a cross section and a central angle of 180°.

4. A concrete cast-in-place pile pouring device according to claim 1, characterized in that, The take-up roller (23) includes a roller assembly, which includes a mounting shaft (218) flexibly mounted on a fixed body (21) and a roller body (217) mounted on the mounting shaft (218) via bearings. The two ends of the roller body (217) are connected to a limiting body (213) via an elastic flexible body. The limiting body (213) is slidably arranged on the mounting shaft (218) and has multiple balls on one side relative to the fixed body (21).

5. A concrete cast-in-place pile pouring device according to claim 4, characterized in that, The mounting shaft (218) includes two symmetrically arranged shaft bodies (214), with abutment plates (215) installed at both ends of the shaft bodies (214). Both abutment plates (215) are slidably arranged inside the roller body (217), and an elastic body (216) is installed between the abutment plates (215).

6. A concrete cast-in-place pile pouring device according to claim 2, characterized in that, The support body (30) includes a rotating structure (31) rotatably mounted on the positioning structure (10) and a support structure (32) for supporting the rotating structure (31). The positioning structure (10) is provided with a positioning body (33) adapted to the support structure (32) and a hook groove (34) is provided on the positioning body (33). The top of the rotating structure (31) is provided with a bearing body (35) for supporting the steel cage stirrups.

7. A casting process for a concrete cast-in-place pile casting device as described in any one of claims 2 to 6, characterized in that, Includes the following steps: First, a steel cage is hoisted and inserted into the pile hole by a crane. The positioning structure (10) is installed at the pile hole position. The stirrups of the steel cage are supported by adjusting the support body (30) to ensure the stability of the steel cage. Secondly, by adjusting the adjusting rod (211) of the linkage adjusting structure, the one-way anti-reverse claw (28) is driven to open the storage space inside the fixed ring (27). The foam float (50) will move vertically down along the longitudinal bar of the steel cage, and at the same time, the guide belt (40) will be driven down to the bottom of the steel cage. The external adjusting rod (211) causes the one-way anti-reverse claw (28) to close the storage space inside the fixed ring (27). During the process, the connecting rope (25) will drive the active rotating disk (22) to rotate and the spring (26) will complete the energy storage. Next, concrete is injected into the conical pouring cylinder (20). The concrete will pass through the conical buffer zone (41) inside the guide belt (40) to gradually reduce the impact on the bottom steel cage. Finally, after the concrete enters the bottom of the pile hole, it will automatically lift the foam float cover (50). During the process, the vibrator (60) on the foam float cover (50) will compact the concrete that has just entered the pile hole. The foam float cover (50) will gradually rise along the longitudinal bars of the steel cage as the amount of concrete inside the pile hole increases. At this time, the active rotating disc (22) will drive the winding roller (23) to wind up the guide belt (40) under the action of the spring (26). The wound guide belt (40) will enter the storage space inside the fixed ring (27) until the foam float cover (50) rises to the pile hole. The remaining part only needs to be backfilled with concrete and compacted by the vibrator (60).

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