Stable anti-skid steel pipe sleeve and construction method

Abstract

The application discloses a stable anti-skid steel pipe sleeve and a construction method, and relates to the technical field of reinforcement cages. The application comprises a reinforcement cage, a connecting disc installed at the bottom of the reinforcement cage, a plurality of support steels arranged in a circular array at the bottom of the connecting disc, a plurality of support insertion plates arranged at the outer circumferential side of the connecting disc and slidably installed, and sliding axes of the plurality of support insertion plates pointing to the axis direction of the reinforcement cage. The catheter is in contact with two arc-shaped grooves, thereby guiding the catheter to be coaxial with the reinforcement cage, thereby ensuring the flowability of subsequent concrete. After the concrete is poured into the catheter, the concrete passes through the bottom end of the catheter and then falls into the base hole through the trigger, thereby moving the plurality of support insertion plates away from the axis direction of the reinforcement cage through the trigger, thereby achieving the insertion of the support insertion plates on the sidewall of the base hole, and preventing the reinforcement cage from floating up through the limiting of the support insertion plates during the pouring of the concrete.

Description

Technical Field

[0001] This application relates to the field of steel cage technology, specifically to a stable and anti-slip steel pipe sleeve and its construction method. Background Technology

[0002] The main function of the steel pipe sleeve is similar to that of the longitudinal reinforcement in the column, primarily resisting tensile forces. While concrete has high compressive strength but very low tensile strength, the steel pipe sleeve restrains the concrete within the pile, enabling it to withstand a certain amount of axial tensile force. During pile foundation construction, the drilling rig first breaks through the ground to create a foundation pit. A casing is then installed inside the pit, and the pit is drilled again to the specified depth. After drilling is complete, a guide pipe is lowered to begin circulating mud, reducing the thickness of sediment in the pit. After circulation is complete, the reinforcing cage and guide pipe are lowered, and concrete is poured. As the concrete is poured, the concrete in the pit rises continuously. When the bottom of the pit is filled with concrete, the continuous rise of the concrete can easily cause the bottom of the reinforcing cage to move upwards, resulting in the reinforcing cage floating. During this floating process, the reinforcing cage may collide with the borehole wall, causing serious problems such as borehole collapse, or, in less severe cases, pile breakage or necking, significantly reducing the pile's bearing capacity and impacting the overall project quality. This poses a significant hazard, and several factors contribute to the floating of the reinforcing cage. Firstly, poor coaxiality between the reinforcing cage and the lower guide pipe during grouting leads to uneven concrete flow, causing the reinforcing cage to lift prematurely at the start of grouting, resulting in floating. Secondly, a large volume of concrete poured into the guide pipe generates an upward impact force, causing the reinforcing cage to float. Once floating occurs, restoring the reinforcing cage to its original position is difficult and labor-intensive. Therefore, to prevent the reinforcing cage from floating during grouting, this application proposes a stable, anti-slip steel pipe sleeve and construction method to address the existing shortcomings.

[0003] Application content

[0004] The purpose of this application is to provide a stable and anti-slip steel pipe sleeve and a construction method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application specifically adopts the following technical solution: A sturdy, anti-slip steel pipe sleeve includes a reinforcing cage, a connecting plate installed at the bottom of the reinforcing cage, a circular array of supporting reinforcing bars at the bottom of the connecting plate, and a plurality of supporting inserts arranged and slidably mounted on the outer periphery of the connecting plate. The sliding axes of the plurality of supporting inserts point in the direction of the axis of the reinforcing cage. A triggering element acting on the supporting inserts is installed on the reinforcing cage. The triggering element is located above the plurality of supporting inserts. When concrete passes over the triggering element, the triggering element causes the supporting inserts to move away from the axis of the reinforcing cage. Two guide plates are symmetrically installed inside the reinforcing cage near the top. Each of the two guide plates has an arc-shaped groove on its opposite side for guiding the guide pipe.

[0006] Furthermore, the trigger includes a drive disc that is vertically slidably sleeved on the main reinforcement bar of the steel cage. The bottom of the drive disc has a circular array of multiple connecting blocks. A drive rod is hinged to the connecting block, and the free ends of the multiple drive rods are respectively hinged to the multiple support plates.

[0007] Furthermore, the connecting plate is constructed on the main reinforcement bar of the steel cage and located below the driving plate. The outer periphery of the connecting plate has a circular array of multiple sliding grooves. Multiple support plates are slidably inserted into the sliding grooves respectively. The support plates can be completely housed in the corresponding sliding grooves. The top surface of the sliding groove has a through groove along its length. The top end of the support plate near the axis of the steel cage has a protrusion. The driving rod is hinged to the protrusion.

[0008] Furthermore, the end of the support plate away from the axis of the reinforcing cage is sharpened, and the drive disc is frustoconical with a grout discharge groove on its outer periphery.

[0009] Furthermore, a connecting sleeve is installed on the top of the connecting plate, and a connecting rod is vertically slidably inserted inside the connecting sleeve. One end of the connecting rod is located on the outside and connected to the drive plate. A return spring is installed at the bottom inside the connecting sleeve, and one end of the return spring is connected to the connecting rod.

[0010] Furthermore, a connecting frame is installed on the main reinforcement bar of the steel cage. The connecting frame is located in the lower part of the steel cage. Multiple reset plates are installed in a circular array and rotate vertically on the connecting frame. An adjustment component for driving the reset plates to rotate is installed on the connecting frame. The reset plates are located inside the steel cage and are distributed in a circular array around the axis of the steel cage.

[0011] Furthermore, the adjusting assembly includes multiple annular sleeves slidably fitted onto the stirrups of the reinforcing cage. The multiple annular sleeves located in the same vertical direction are connected by connecting rods. The tops of the multiple connecting rods are close to the top of the reinforcing cage. It also includes a driving annular sleeve connected to the tops of the multiple connecting rods. A driving component is installed between the multiple connecting rods and the multiple reset plates. When the connecting rods rotate around the axis of the reinforcing cage, the driving component causes the free ends of the multiple reset plates to move closer to or further away from each other.

[0012] Furthermore, the driving component includes an inner ring gear connected to a plurality of the connecting rods, and a plurality of driven gears meshing with the inner ring gears are rotatably mounted on the connecting frame. The plurality of driven gears are respectively connected to a plurality of reset plates through bevel gear assemblies.

[0013] Furthermore, a plug-in groove is provided on the outer periphery of the drive ring sleeve, a plug-in plate is inserted into the plug-in groove, and a pusher is connected to the plug-in plate.

[0014] The construction method for a stable and anti-slip steel pipe sleeve includes the following steps: S1: Drill holes into the foundation using a drilling rig. When the hole reaches the corresponding depth, place the steel cage into the foundation hole using a truck crane, so that the supporting steel bars are at the bottom of the foundation hole. Then place two pads on both sides of the foundation hole, and place two steel bars across the steel cage and then place them on the two pads. S2: After the steel cage is placed, use a crane to put the guide tube into the steel cage. The guide tube passes through the arc groove on the guide plate, and then passes through multiple reset plates and is located above the drive plate. Insert the plug plate into the plug groove, and then rotate the pusher, so that the ring sleeve rotates, which indirectly causes the inner ring gear to rotate. The rotation of the inner ring gear drives the driven gear to rotate, which in turn cooperates with the bevel gear assembly to bring the free ends of multiple reset plates closer to each other, so as to guide the guide tube to be coaxial with the steel cage. S3: Concrete is poured into the guide pipe. After the concrete falls onto the drive plate, it drives the drive plate to move downward, thereby enabling multiple support plates to be inserted into the inner wall of the foundation hole via the drive rod.

[0015] The beneficial effects of this application are as follows: The conduit in this application contacts two arc-shaped grooves, thereby guiding the conduit to be coaxial with the reinforcing cage, thus ensuring the flow of subsequent concrete. After concrete is poured into the conduit, the concrete passes through the bottom end of the conduit and then through the trigger and falls into the foundation hole. The trigger causes multiple support plates to move away from the axis of the reinforcing cage, thereby enabling the support plates to be inserted into the side wall of the foundation hole. During the concrete pouring process, the limiting effect of the support plates prevents the reinforcing cage from floating.

[0016] The design of the reset spring in this application makes it less likely that the drive plate will bump against the inner wall of the base hole during lowering, causing the drive plate to move unexpectedly and thus causing the support plate to move and be inserted into the inner wall of the base hole, thereby achieving the purpose of protection. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of this application; Figure 2 This application Figure 1 Partial three-dimensional sectional view; Figure 3 This application Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This application Figure 2 Enlarged view of the structure at point B in the middle; Figure 5 This application Figure 2 Enlarged view of the structure at point C; Reference numerals: 1. Reinforcing cage; 2. Connecting disc; 3. Supporting reinforcing bar; 4. Supporting insert plate; 5. Trigger; 501. Drive disc; 502. Connecting block; 503. Drive rod; 6. Guide plate; 7. Arc groove; 8. Sliding groove; 9. Through groove; 10. Protrusion; 11. Grout discharge groove; 12. Connecting sleeve; 13. Connecting sleeve rod; 14. Return spring; 15. Connecting frame; 16. Return plate; 17. Adjusting assembly; 18. Ring sleeve; 19. Connecting rod; 20. Drive ring sleeve; 21. Drive component; 2101. Inner ring gear; 2102. Driven gear; 2103. Bevel gear assembly; 22. Insertion groove; 23. Insertion plate; 24. Pusher. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0019] like Figures 1-5As shown, an embodiment of this application proposes a stable and anti-slip steel pipe sleeve, including a reinforcing cage 1, a connecting plate 2 installed at the bottom of the reinforcing cage 1, a plurality of supporting reinforcing bars 3 arranged in a circular array at the bottom of the connecting plate 2, a plurality of supporting insert plates 4 arranged in an array and slidably installed on the outer periphery of the connecting plate 2, the sliding axis of the plurality of supporting insert plates 4 pointing in the direction of the axis of the reinforcing cage 1, a triggering element 5 acting on the supporting insert plates 4 installed on the reinforcing cage 1, the triggering element 5 being located above the plurality of supporting insert plates 4, when concrete passes over the triggering element 5, the triggering element 5 causes the supporting insert plates 4 to move away from the axis of the reinforcing cage 1, and two guide plates 6 symmetrically installed inside the reinforcing cage 1 near the top, each of the two guide plates 6 having an arc-shaped groove 7 on opposite sides for guiding the conduit. After the reinforcing cage 1 is placed into the foundation pit, the guide pipe is then placed into the reinforcing cage 1, with a gap between the bottom of the guide pipe and the trigger 5. At this time, the guide pipe contacts the two arc-shaped grooves 7, which serve as a guide, keeping the guide pipe and the reinforcing cage 1 coaxial, thus ensuring the flow of subsequent concrete and allowing the concrete to rise steadily in the foundation hole. Then, concrete is poured into the guide pipe. After the concrete passes through the bottom end of the guide pipe, it passes through the trigger 5 and falls into the foundation hole. The trigger 5 causes multiple support plates 4 to move away from the axis of the reinforcing cage 1, thereby allowing the support plates 4 to be inserted into the side wall of the foundation hole. During the concrete pouring process, the support plates 4 limit the movement of the concrete, thus preventing the reinforcing cage 1 from floating.

[0020] like Figure 1 and Figure 5 As shown, in some embodiments, the trigger 5 includes a drive disc 501 that is vertically slidably sleeved on the main reinforcement bars of the steel cage 1. Specifically, the steel cage 1 is mainly composed of multiple main reinforcement bars, tightening hoops, and reinforcing hoops. The main reinforcement bars are the longest vertical steel bars. The bottom of the drive disc 501 has a circular array of multiple connecting blocks 502. A drive rod 503 is hinged on the connecting block 502. The free ends of the multiple drive rods 503 are respectively hinged on multiple support plates 4. That is, when the concrete passes through the guide pipe and is located at the top of the drive disc 501, the drive disc 501 moves vertically downward, thereby driving the connecting blocks 502 installed on the drive disc 501 to move. Because the connecting blocks 502 and the support plates 4 are hinged with the drive rods 503, when the connecting blocks 502 move downward, the multiple support plates 4 will move away from each other through the drive rods 503, thereby realizing that the support plates 4 are inserted into the inner wall of the foundation hole and preventing the steel cage 1 from floating.

[0021] like Figure 5As shown, in some embodiments, the connecting plate 2 is constructed on the main reinforcement of the steel cage 1 and located below the driving plate 501. The outer periphery of the connecting plate 2 has a circular array of multiple sliding grooves 8, and multiple support plates 4 are slidably inserted into the sliding grooves 8 respectively. The support plates 4 can be completely housed in the corresponding sliding grooves 8. The top surface of the sliding groove 8 has a through groove 9 along its length. The top end of the support plate 4 near the axis of the steel cage 1 is constructed with a protrusion 10. The driving rod 503 is hinged to the protrusion 10. That is to say, when the steel cage 1 is lowered, the support plate 4 is located in the sliding groove 8, so as not to affect the normal lowering of the steel cage 1. The driving rod 503 is located between the connecting plate 2 and the driving plate 501. When the concrete is initially poured, before the concrete exceeds the length of the supporting reinforcement 3, it is not easy for the support plate 4 to fail to be inserted into the inner wall of the foundation hole due to the pouring of concrete.

[0022] like Figure 1 and Figure 5 As shown, in some embodiments, the end of the support plate 4 away from the axis of the reinforcing cage 1 is sharpened, so that the support plate 4 can be inserted into the inner wall of the foundation hole more smoothly. The drive plate 501 is truncated cone-shaped and has a grout discharge groove 11 on its outer periphery. The truncated cone design of the drive plate 501 allows the concrete poured on the drive plate 501 to flow smoothly from the drive plate 501 to the bottom of the foundation hole. The design of the grout discharge groove 11 improves the flowability of the concrete.

[0023] like Figure 1 and Figure 5 As shown, in some embodiments, a connecting sleeve 12 is installed on the top of the connecting plate 2, and a connecting rod 13 is vertically slidably inserted inside the connecting sleeve 12. One end of the connecting rod 13 is located on the outside and connected to the driving plate 501. A return spring 14 is installed at the bottom inside the connecting sleeve 12, and one end of the return spring 14 is connected to the connecting rod 13. When the reinforcing cage 1 is lowered, the design of the return spring 14 makes it less likely that the driving plate 501 will hit the inner wall of the foundation hole during lowering, causing the driving plate 501 to move unexpectedly, thereby causing the support plate 4 to move unexpectedly and be inserted into the inner wall of the foundation hole, thus achieving the purpose of protection. When the concrete is initially poured, the impact force of the concrete is greater than the elastic deformation capacity of the return spring 14, thereby causing the driving plate 501 to move downward.

[0024] like Figure 1 and Figure 4As shown, in some embodiments, a connecting frame 15 is installed on the main reinforcement of the reinforcing cage 1. The connecting frame 15 is located in the lower part of the reinforcing cage 1. Multiple reset plates 16 are installed in a circular array and rotate vertically on the connecting frame 15. An adjustment component 17 is installed on the connecting frame 15 to drive the reset plates 16 to rotate. The reset plates 16 are located inside the reinforcing cage 1 and are distributed in a circular array around the axis of the reinforcing cage 1. When the guide tube is suspended inside the reinforcing cage 1, the reset plates 16 are rotated by the adjustment component 17. By controlling the adjustment component 17, the free ends of multiple reset plates 16 simultaneously approach the axis of the reinforcing cage 1, thereby forming multiple reset plates 16 free ends pushing the guide tube to move, thereby forcing the guide tube to be coaxial with the reinforcing cage 1, so as to ensure the coaxiality of the guide tube and the reinforcing cage 1.

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the adjusting assembly 17 includes multiple annular sleeves 18 slidably fitted on the stirrups of the reinforcing cage 1. The tightening hoops are connected to multiple main reinforcing bars to ensure the position of the main reinforcing bars. The stirrups are located outside the main reinforcing bars. Multiple annular sleeves 18 located in the same vertical direction are connected by connecting rods 19. The tops of multiple connecting rods 19 are close to the top of the reinforcing cage 1. It also includes a driving ring sleeve 20 connected to the tops of multiple connecting rods 19. That is, when the driving ring sleeve 20 is rotated, multiple connecting rods 19 will rotate. A driving element 21 is installed between multiple connecting rods 19 and multiple reset plates 16. When the connecting rods 19 rotate around the axis of the reinforcing cage 1, the driving element 21 will make the free ends of multiple reset plates 16 move closer or further away from each other. In other words, when multiple connecting rods 19 rotate through the driving ring sleeve 20, the driving element 21 will make the free ends of multiple reset plates 16 move closer or further away from each other, thereby making multiple reset plates 16 simultaneously push the guide tube to move and align. This design makes the driving ring sleeve 20 located near the foundation hole, which is convenient for workers to rotate and adjust the position of the reset plates 16.

[0026] like Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, the driving component 21 includes an inner ring gear 2101 connected to multiple connecting rods 19. Multiple driven gears 2102 meshing with the inner ring gear 2101 are rotatably mounted on the connecting frame 15. The multiple driven gears 2102 are respectively connected to multiple reset plates 16 through bevel gear assemblies 2103. When the multiple connecting rods 19 rotate, the inner ring gear 2101 rotates. Because the inner ring gear 2101 meshes with the multiple driven gears 2102, the rotation of the inner ring gear 2101 will cause the multiple driven gears 2102 to rotate. Specifically, the bevel gear assembly 2103 consists of two meshing bevel gears, one fixedly mounted on the driven gear 2102 and the other fixedly mounted at the rotation point of the reset plate 16. Therefore, when the driven gear 2102 rotates, the reset plate 16 will rotate through the bevel gear assembly 2103, and the multiple reset plates 16 rotate in the same direction.

[0027] like Figure 1 and Figure 3 As shown, in some embodiments, a plug-in groove 22 is provided on the outer periphery of the drive ring sleeve 20, and a plug-in plate 23 is inserted into the plug-in groove 22. A pusher 24 is connected to the plug-in plate 23. When the drive ring sleeve 20 needs to rotate, the plug-in plate 23 can be inserted into the plug-in groove 22, and then the pusher 24 can be pushed to make the drive ring sleeve 20 rotate. Preferably, there are multiple plug-in grooves 22, and multiple pushers 24 can be rotated by multiple workers, which is more convenient to use. After rotation, the plug-in plate 23 can be pulled out from the plug-in groove 22.

[0028] This invention also proposes a method for constructing a stable and anti-slip steel pipe sleeve, comprising the following steps: S1: Drill holes into the foundation using a drilling rig. When the hole reaches the corresponding depth, place the steel cage 1 into the foundation hole using a truck crane, so that the supporting steel bar 3 is located at the bottom of the foundation hole. Then place two pads on both sides of the foundation hole, and place two steel bars across the steel cage 1 and then place them on the two pads. S2: After the steel cage 1 is placed, a crane is used to put the guide tube into the steel cage 1. The guide tube passes through the arc groove 7 on the guide plate 6, and then passes through multiple reset plates 16 and is located above the drive plate 501. The plug plate 23 is then inserted into the plug groove 22. Then the pusher 24 is rotated, which causes the annular sleeve 18 to rotate, indirectly causing the inner ring gear 2101 to rotate. The rotation of the inner ring gear 2101 drives the driven gear 2102 to rotate, thereby cooperating with the bevel gear assembly 2103 to bring the free ends of the multiple reset plates 16 closer to each other, so as to guide the guide tube to be coaxial with the steel cage 1. S3: Concrete is poured into the conduit. After the concrete falls onto the drive disc 501, it drives the drive disc 501 to move downward, thereby enabling multiple support plates 4 to be inserted into the inner wall of the foundation hole via the drive rod 503.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stable anti-skid steel pipe sleeve comprising a reinforcement cage (1), characterized in that, A connecting plate (2) is installed at the bottom of the steel cage (1). The bottom of the connecting plate (2) is arranged in a circular array and has multiple supporting steel bars (3). Multiple supporting plates (4) are arranged in an array and slidably installed on the outer periphery of the connecting plate (2). The sliding axis of the multiple supporting plates (4) points to the axis of the steel cage (1). A trigger (5) is installed on the steel cage (1) to act on the supporting plates (4). The trigger (5) is located above the multiple supporting plates (4). When concrete passes through the trigger (5), the trigger (5) causes the supporting plates (4) to move away from the axis of the steel cage (1). Two guide plates (6) are symmetrically installed inside the steel cage (1) and near the top. The two guide plates (6) have arc-shaped grooves (7) on opposite sides for guiding the guide tubes. The trigger (5) includes a drive disc (501) that is vertically slidably sleeved on the main reinforcement of the steel cage (1). The bottom of the drive disc (501) has a circular array of multiple connecting blocks (502). A drive rod (503) is hinged on the connecting block (502). The free ends of the multiple drive rods (503) are respectively hinged on the multiple support plates (4). The connecting plate (2) is constructed on the main reinforcement of the steel cage (1) and located below the driving plate (501). The outer periphery of the connecting plate (2) is provided with a plurality of sliding grooves (8) in a circular array. A plurality of supporting plates (4) are slidably inserted into the sliding grooves (8). The supporting plates (4) can be completely housed in the corresponding sliding grooves (8). The top surface of the sliding grooves (8) is provided with through grooves (9) along its length. The top end of the supporting plate (4) near the axis of the steel cage (1) is provided with a protrusion (10). The driving rod (503) is hinged to the protrusion (10). A connecting frame (15) is installed on the main reinforcement of the steel cage (1). The connecting frame (15) is located in the lower part of the steel cage (1). Multiple reset plates (16) are installed in a circular array and rotate vertically on the connecting frame (15). An adjustment component (17) for driving the reset plates (16) to rotate is installed on the connecting frame (15). The reset plates (16) are located inside the steel cage (1) and are distributed in a circular array around the axis of the steel cage (1). The adjustment assembly (17) includes a plurality of annular sleeves (18) slidably sleeved on the stirrups of the steel cage (1). The plurality of annular sleeves (18) located in the same vertical direction are connected by connecting rods (19). The tops of the plurality of connecting rods (19) are close to the top of the steel cage (1). It also includes a driving ring sleeve (20) connected to the tops of the plurality of connecting rods (19). A driving member (21) is installed between the plurality of connecting rods (19) and the plurality of reset plates (16). When the connecting rods (19) rotate around the axis of the steel cage (1), the driving member (21) causes the free ends of the plurality of reset plates (16) to move closer to or further away from each other. The drive unit (21) includes an inner ring gear (2101) connected to a plurality of connecting rods (19). A plurality of driven gears (2102) meshing with the inner ring gear (2101) are rotatably mounted on the connecting frame (15). The plurality of driven gears (2102) are respectively connected to a plurality of reset plates (16) through bevel gear assemblies (2103).

2. The stabilized slip joint pipe sleeve of claim 1 wherein, The end of the support plate (4) away from the axis of the steel cage (1) is sharpened, and the drive disc (501) is truncated cone-shaped and has a grout discharge groove (11) on its outer periphery.

3. The stable and anti-slip steel pipe sleeve according to claim 1, characterized in that, A connecting sleeve (12) is installed on the top of the connecting plate (2). A connecting rod (13) is vertically slidably inserted inside the connecting sleeve (12). One end of the connecting rod (13) is located outside and connected to the drive plate (501). A return spring (14) is installed at the bottom inside the connecting sleeve (12). One end of the return spring (14) is connected to the connecting rod (13).

4. The stable and anti-slip steel pipe sleeve according to claim 1, characterized in that, The drive ring sleeve (18) has a plug groove (22) on its outer periphery, and a plug plate (23) is inserted in the plug groove (22). A pusher (24) is connected to the plug plate (23).

5. A method for constructing a stable and anti-slip steel pipe sleeve, applied to the stable and anti-slip steel pipe sleeve as described in claim 4, characterized in that, Includes the following steps: S1: Drill holes into the foundation using a drilling rig. When the hole reaches the corresponding depth, place the steel cage (1) into the foundation hole using a truck crane, so that the supporting steel bars (3) are located at the bottom of the foundation hole. Then place two pads on both sides of the foundation hole and place two steel bars across the steel cage (1) on the two pads. S2: After the steel cage (1) is placed, a crane is used to put the guide pipe into the steel cage (1). The guide pipe passes through the arc groove (7) on the guide plate (6), and then passes through multiple reset plates (16) and is located above the drive plate (501). Then the plug plate (23) is inserted into the plug groove (22). Then the pusher (24) is rotated, so that the ring sleeve (18) rotates, which indirectly causes the inner ring gear (2101) to rotate. The rotation of the inner ring gear (2101) drives the driven gear (2102) to rotate, which in turn cooperates with the bevel gear assembly (2103) to make the free ends of multiple reset plates (16) approach each other, so as to guide the guide pipe to be coaxial with the steel cage (1). S3: Concrete is poured into the conduit. After the concrete falls onto the drive disc (501), it drives the drive disc (501) to move downward, thereby enabling multiple support plates (4) to be inserted into the inner wall of the foundation hole via the drive rod (503).

Images