Device and method for rapidly repairing and reinforcing defects of building pile foundation

Abstract

The invention relates to the field of building pile foundation repairing and reinforcing, and discloses a building pile foundation defect rapid repairing and reinforcing device and method. The device comprises a base plate, a rocker arm mechanism, a hinged type semicircular frame, an arc-shaped plate, a wiping unit, a chiseling unit, a semicircular hoop, a mounting assembly and a driving unit, an upper circular cavity and a lower circular cavity are formed in the semicircular frame, the arc-shaped plate carries the wiping unit, the chiseling unit and a vibration assembly which can rotate, and the lower circular cavity is provided with the semicircular hoop and a directional pouring structure; according to the method, repairing is completed through the four steps of device preparation, automatic wiping and chiseling, accurate semicircular hoop splicing and concrete directional pouring. Mechanical cleaning, chiseling and reinforcing of the defect area of the pile body are achieved, the defects of manual operation are avoided, thorough cleaning and dense filling are ensured, the multi-scene repairing requirements are met, the construction efficiency and repairing quality are improved, and the safety risk and the comprehensive cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of building pile foundation repair and reinforcement, and in particular to a device and method for rapid repair and reinforcement of building pile foundation defects. Background Technology

[0002] As the core load-bearing component of various building structures, building piles are susceptible to multiple factors such as dynamic changes in geological conditions, external load impacts, and natural aging of concrete materials during long-term service, resulting in typical defects such as pile body fracture, concrete spalling, and loose surface concrete.

[0003] Loose concrete in the pile body must be thoroughly cleaned and removed; any residue will directly weaken the bond strength between the old and new materials, severely affecting the repair and reinforcement effect. Currently, minimally invasive hoop reinforcement technology is the mainstream solution for repairing such defects. The technical approach involves: first, thoroughly cleaning the defective area of ​​the pile body; then, filling the defect with repair concrete; and finally, installing and fixing a reinforcing hoop to improve the pile's load-bearing capacity. This technology has been widely used in building pile foundation repair projects due to its minimal damage to the original pile structure, low construction interference, and strong applicability.

[0004] In existing technologies, such as the patent with publication number CN107700561B, a composite component and a pile repair and reinforcement system for foundation pile repair and reinforcement are disclosed. This system targets different pile types, such as steel pipe piles and concrete pipe piles, by first performing targeted interface treatment on the repair area, then fixing end hoops, installing an outer formwork, and finally pouring a self-compacting ultra-high toughness cement-based composite material to form a protective layer. However, although this technology improves some of the original problems, there are still aspects that require further optimization: Steel pipe piles require manual rust removal, while concrete pipe piles require manual cleaning of the outer side, chiseling away loose parts and roughening. The installation of end rings, the placement of sleeves, and grouting also rely on manual reinforcement. This process is labor-intensive and inefficient, and can easily lead to incomplete cleaning and filling, affecting the quality of repairs and operational safety.

[0005] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing technologies for the repair and reinforcement of building pile foundations. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a rapid repair and reinforcement device for defects in building pile foundations, comprising: The substrate has a rocker arm mechanism mounted on its upper end.

[0007] Two semicircular frames are hinged to each other at both ends. One semicircular frame is connected to the rocker arm mechanism. The interior of the semicircular frame has an upper circular cavity and a lower circular cavity. When the two semicircular frames are closed, they are fitted onto the outside of the pile body.

[0008] Two arc-shaped plates are slidably installed in two upper circular cavities respectively. When the two semi-circular frames are closed, the two upper circular cavities inside form an annular structure cavity. The arc-shaped plates move axially along the axis of the pile body. Several circular grooves are opened inside the arc-shaped plates and distributed along their arc-shaped extensions.

[0009] Several cylinders are rotatably installed in their respective circular grooves.

[0010] The wiping unit and the chiseling unit are respectively installed inside the cylinders of the two curved plates. The wiping unit is used to wipe the outside of the pile body, and the chiseling unit is used to chisel away the loose concrete on the outside of the pile body.

[0011] Two semi-circular hoops are installed in the two lower circular cavities, respectively.

[0012] The mounting components are placed inside the lower circular cavity to fix the semi-circular hoop to the outside of the pile body.

[0013] Preferably, the wiping unit includes: Several compression springs are distributed and installed on the outside of the cylinder along the axis of the cylinder.

[0014] An arc-shaped rubbing plate is installed at the end of a pressure spring, which drives the arc-shaped rubbing plate to contact the outside of the pile body.

[0015] Preferably, the wiping unit further includes: Several water storage tanks are installed on the upper part of the semi-circular frame.

[0016] The water outlet pipe is installed through the water tank on the side facing the cylinder.

[0017] Preferably, the wiping unit further includes: The inner gear ring has an arc-shaped groove on the top wall of the semi-circular frame, and the inner gear ring is installed in the arc-shaped groove.

[0018] The driven shaft is installed on the upper end of the cylinder and passes through the arc-shaped groove.

[0019] The driven gear is fixedly sleeved on the outside of the driven shaft and meshes with the internal gear ring.

[0020] Preferably, the chiseling unit includes: Several telescopic shafts are evenly distributed along the cylinder axis and extension section and slide through the inner wall of the cylinder.

[0021] Several sliding cylinders are installed on the inner wall of the cylinder and correspond to the outer side of the telescopic shaft. A strip-shaped groove is opened on the inner wall of the sliding cylinder, with one end communicating with its interior.

[0022] The strip plate is installed on the outside of the telescopic shaft and is slidably inserted into the corresponding strip groove.

[0023] The reset spring is installed between the strip plate and the inner wall of the strip groove.

[0024] Preferably, the chiseling unit further includes: The vertical shaft is slidably installed between the arc-shaped plate and the cylinder on one side.

[0025] Several conical blocks are mounted on a vertical shaft. The telescopic shafts are arc-shaped to the side facing the conical blocks, and the ends of several corresponding telescopic shafts in the lateral direction are in contact with the outer side of the adjacent conical blocks.

[0026] Preferably, a vibration assembly is installed inside the cylinder, and the vibration assembly includes: The vibration shaft is installed on the inner top wall of the cylinder.

[0027] The cam is fixedly sleeved on the outside of the vibration shaft.

[0028] Preferably, the mounting components include: The sliding groove is formed on the inner top wall of the lower circular cavity.

[0029] The sliding plate is slidably installed in the sliding groove.

[0030] The mounting screw is rotatably installed in the sliding groove, passes through the middle of the sliding plate, and is threadedly connected to it.

[0031] The push groove is located at the upper end of the semi-circular hoop, corresponding to the bottom of the sliding plate on one side.

[0032] The push plate is installed at the bottom of the sliding plate and located in the corresponding push groove.

[0033] An inclined groove is inserted at both ends of a semi-circular hoop on one side, and a snap-fit ​​block is installed inside the inclined groove.

[0034] The insertion plate is installed at both ends of the semi-circular hoop on the other side, and several triangular blocks are installed on one side of the insertion plate.

[0035] Preferably, the mounting components also include: The bent tube is installed through one side of the semi-circular frame, with one end extending into the lower circular cavity.

[0036] The pouring trough is located inside a semi-circular hoop on one side, with its end extending to the outer wall of the semi-circular hoop.

[0037] In addition, the present invention also provides a method for rapid repair of defects in building pile foundations, comprising the following steps: S1. Device preparation: Start the rocker arm mechanism and adjust the height of the semicircular frame to align with the defect area of ​​the pile body. After the two semicircular frames open to accommodate the pile, they close and fix.

[0038] S2. Wiping and Chiseling: Drive the arc plate inside the upper cavity to move along the pile axis, and simultaneously drive the cylinder on the arc plate to rotate. Utilize the wiping unit and chiseling unit mounted on the cylinder to complete the cleaning of the pile body and the removal of loose concrete through the coordinated movement and rotation.

[0039] S3. Semicircular hoop installation: Activate the lower circular cavity installation component and push the semicircular hoop towards the pile body to splice the two semicircular hoops together and fix them tightly against the outside of the pile body.

[0040] S4. Concrete pouring: The installed components pour repair concrete into the gap between the semicircular hoop and the pile body. After it solidifies, the pile defect is repaired and the semicircular hoop is reinforced and fixed.

[0041] In summary, this application includes at least one of the following beneficial technical effects: I. This invention, by configuring a self-rotating wiping unit and a chiseling unit on an arc-shaped plate, and combining them with a vibration component to provide high-frequency vibration support, completely replaces traditional manual rust removal, cleaning, and chiseling operations. It not only thoroughly solves the pain points of high labor intensity and low efficiency of manual operation, but also achieves all-round, no-dead-angle cleaning and loose concrete stripping of the defective area of ​​the pile body through the synergistic effect of the axial movement of the arc-shaped plate and the rotation of the cylinder. This ensures more thorough cleaning and avoids the weakening of the bonding strength between new and old materials by residual impurities from the source, thus laying a solid foundation for subsequent repair and reinforcement.

[0042] Second, this invention drives two semi-circular hoops to precisely connect and fit tightly against the pile body through the installation component. Combined with the bent pipe and the grouting groove, it forms a directional grouting channel, realizing the precise delivery of repair concrete. At the same time, the vibration component works synchronously to improve the density of mortar filling, effectively avoiding the defects such as incomplete filling and uneven distribution that are easy to occur in traditional manual grouting, and significantly enhancing the pile repair and reinforcement effect.

[0043] Third, this invention uses a rocker arm mechanism to adjust the height and a semi-circular frame opening and closing sleeve structure to adapt to the repair of building pile foundations in different scenarios such as land and water bridges. The fully mechanized collaborative operation greatly reduces manual intervention, which not only reduces the safety risks in high-altitude and water-adjacent working environments, but also simplifies the construction process, greatly improves the convenience, standardization and overall efficiency of repair construction, and reduces the overall cost of the project. Attached Figure Description

[0044] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0045] Figure 1 This is a schematic diagram of the structure of the main body of the present invention.

[0046] Figure 2 This is a schematic diagram of the internal structure of the two semi-circular frames of the present invention.

[0047] Figure 3 This is a schematic diagram of the upper and lower circular cavities of the present invention.

[0048] Figure 4 This is a schematic diagram of the wiping unit of the present invention.

[0049] Figure 5 This is a schematic diagram of the structure of the chiseling unit of the present invention.

[0050] Figure 6 This is the present invention. Figure 5 Enlarged view of part of the structure at point A in the middle.

[0051] Figure 7 This is the present invention. Figure 5 Enlarged view of part of the structure at point B.

[0052] Figure 8 This is a schematic diagram of the installation components and drive unit of the present invention.

[0053] Figure 9 This is the present invention. Figure 8 Enlarged view of part of the structure at point C.

[0054] Figure 10 This is a schematic diagram of the structure of the two semicircular hoops of the present invention.

[0055] Figure 11 This is the present invention. Figure 10 Enlarged view of part of the structure at point D.

[0056] Figure 12 This is a schematic diagram of the structure of the bent pipe and the grouting trench of the present invention.

[0057] In the diagram, 1. Base plate; 10. Rocker arm mechanism; 11. Semicircular frame; 12. Upper cavity; 13. Lower cavity; 14. Arc plate; 15. Cylinder; 16. Semicircular hoop; 17. Barrier plate; 2. Wiping unit; 20. Compression spring; 21. Arc-shaped wiping plate; 22. Water tank; 23. Water outlet pipe; 24. Internal gear ring; 25. Driven shaft; 26. Driven gear; 3. Chiseling unit; 30. Telescopic shaft; 31. Sliding cylinder; 32. Strip groove; 33. Strip plate; 34. Reset push spring; 35. Vertical shaft; 36. Conical block; 37. Mounting groove 38. Push cylinder; 39. Linkage groove; 310. Linkage plate; 4. Vibration assembly; 40. Vibration shaft; 41. Cam; 5. Mounting assembly; 50. Sliding groove; 51. Sliding plate; 52. Mounting screw; 53. Push groove; 54. Push plate; 55. Insertion inclined groove; 56. Snap-fit ​​block; 57. Insertion plate; 58. Triangular block; 59. Bending pipe; 510. Pouring groove; 6. Drive unit; 60. External rack; 61. Drive groove; 62. Dual-axis motor; 63. Ratchet component one; 64. Mounting gear; 65. Ratchet component two. Detailed Implementation

[0058] The following combination Figures 1 to 12 The embodiments of the present invention will be described in detail below.

[0059] This application discloses a device and method for rapid repair and reinforcement of defects in building pile foundations. It is applied to the repair and reinforcement of defects such as pile fracture, concrete spalling and surface loosening, and can realize automated cleaning, chiseling and repair reinforcement of the defective area of ​​the pile.

[0060] Example 1: Refer to Figures 1 to 4 As shown, the device includes a base plate 1, a rocker arm mechanism 10, a semi-circular frame 11, an upper circular cavity 12, a lower circular cavity 13, an arc plate 14, a cylinder 15, a wiping unit 2, a chiseling unit 3, a semi-circular hoop 16, a mounting assembly 5, and a barrier plate 17. The rocker arm mechanism 10 is mounted on the upper end of the base plate 1. Two semi-circular frames 11 with hinged ends are distributed on the upper end of the rocker arm mechanism 10, and one side of the semi-circular frame 11 is connected to the rocker arm mechanism 10. The rocker arm mechanism 10 can drive the two semi-circular frames 11 to move up and down. This is an existing device. The base plate 1 is used to support the semi-circular frames 11. Therefore, according to the actual needs of use, when repairing building piles (hereinafter referred to as pile bodies) on land or water bridges, the base plate 1 can be installed on land transportation devices or water transportation devices, such as vehicles or ships, so that the semi-circular frames 11 can correspond to the pile body.

[0061] It should be noted that the rocker arm mechanism 10 is an existing lifting arm device. In this implementation, its function is to drive the two semi-circular frames 11 to move upward toward the location of the defect in the building pile, and after the repair is completed, drive the semi-circular frames 11 to descend for easy recovery.

[0062] An external motor (not shown) can be installed at the hinge of the two semicircular frames 11. The main shaft of the external motor is connected to its hinge point to drive the other semicircular frame 11 to open, similar to the principle of scissors opening, so that the inner side of the two semicircular frames 11 can correspond to the outer side of the pile body. Then, the external motor drives the two semicircular frames 11 to close and fit on the outer side of the pile body.

[0063] The semi-circular frame 11 has an upper circular cavity 12 and a lower circular cavity 13 that are symmetrically distributed vertically. The two arc plates 14 are slidably installed in the upper circular cavities 12 respectively. When the arc plates 14 are driven by external force, they can move in the upper circular cavities 12. When the two semi-circular frames 11 are closed, the two upper circular cavities 12 can form a large annular structure cavity, so that the arc plates 14 can move axially along the axis of the pile body in the two upper circular cavities 12 when driven by external force.

[0064] The interior of the arc-shaped plate 14 has several circular grooves distributed along its arc-shaped extension. One side of the circular grooves is connected to the inner wall of the arc-shaped plate 14. Several cylinders 15 are rotatably installed in the circular grooves. A wiping unit 2 for wiping the outside of the pile body is installed in the cylinder 15 on one side of the arc-shaped plate 14, and a chiseling unit 3 for chiseling away the loose concrete on the outside of the pile body is installed in the cylinder 15 on the other side of the arc-shaped plate 14. The cylinder 15 can rotate in the corresponding circular groove when driven by external force, which drives the corresponding wiping unit 2 or chiseling unit 3 to rotate. That is, the arc-shaped plate 14 can drive the corresponding wiping unit 2 and chiseling unit 3 to move and make uniform contact with the outside of the pile body.

[0065] The two lower cavities 13 are each equipped with a semi-circular hoop 16, and the lower cavities 13 are also equipped with an installation component 5 for installing the semi-circular hoop 16 on the outside of the pile body. The installation component 5 can pour concrete between the semi-circular hoop 16 and the outside of the pile body, and fix the semi-circular hoop 16 on the outside of the pile body while repairing the defects on the outside of the pile body.

[0066] An arc-shaped barrier groove is also provided on the top wall of the upper circular cavity 12, and a barrier plate 17 inserted into the corresponding barrier groove is installed on the upper end of the arc plate 14.

[0067] The baffle plate 17 limits the arc plate 14 within the upper circular cavity 12 through the baffle groove, preventing the arc plate 14 inside the semi-circular frame 11 from shifting and falling out of the semi-circular frame 11 when it is opened.

[0068] In addition, the present invention also provides a method for rapid repair of defects in building pile foundations, comprising the following steps: S1. Equipment preparation: Select a transportation device according to the construction scenario, fix the base plate 1 that supports the semi-circular frame 11; start the rocker arm mechanism 10 to adjust the height of the semi-circular frame 11 to align with the defect area of ​​the pile body, control the drive component at the hinge to make the semi-circular frame 11 open and close and fix after the pile is installed, and the barrier groove and the barrier plate 17 cooperate to limit the arc plate 14.

[0069] S2. Wiping and chiseling: Drive the arc plate 14 inside the upper circular cavity 12 to move along the pile axis, and simultaneously drive the cylinder 15 on the arc plate 14 to rotate. Utilize the wiping unit 2 and chiseling unit 3 mounted on the cylinder 15 to complete the cleaning of the pile body and the removal of loose concrete through the coordinated movement and rotation.

[0070] S3. Installation of semi-circular hoop: Start the installation component 5 of the lower circular cavity 13, push the semi-circular hoop 16 towards the pile body, so that the two semi-circular hoops 16 are spliced ​​together and tightly attached to the outside of the pile body for fixation.

[0071] S4. Concrete pouring: The gap between the semi-circular hoop 16 and the pile body is filled with repair concrete through the installation component 5. After it solidifies, the pile defect is repaired and the semi-circular hoop 16 is reinforced and fixed.

[0072] Reference Figures 2 to 4 As shown, this is the wiping unit 2 used to wipe the outside of the pile body. Specifically, the wiping unit 2 includes a pressure spring 20, an arc-shaped wiping plate 21, a water storage tank 22, a water outlet pipe 23, an internal gear ring 24, a driven shaft 25, and a driven gear 26. Several pressure springs 20 are installed on the outside of the cylinder 15 and distributed along its axis. The ends of the pressure springs 20 are equipped with arc-shaped wiping plates 21. The cylinder 15 can drive the corresponding arc-shaped wiping plates 21 to rotate along its axis through the pressure springs 20. During the rotation, the pressure springs 20 drive the corresponding arc-shaped wiping plates 21 to form contact with the outside of the pile body. The movement of the arc-shaped plate 14 can make the arc-shaped wiping plates 21 make uniform contact with the outside of the pile body, so that the arc-shaped wiping plates 21 can thoroughly wipe the floating dust, mud, and loose surface impurities on the outside of the pile body.

[0073] Several water storage tanks 22 are installed at the upper end of the semi-circular frame 11. A water outlet pipe 23 is installed through the water storage tank 22 facing the cylinder 15. A water pump is installed between the water storage tank 22 and the water outlet pipe 23. That is, the water pump can spray the water in the water storage tank 22 through the water outlet pipe 23 toward the cylinder 15. The water flow directly acts on the wiping area of ​​the pile body. With the rotation of the arc-shaped wiping plate 21, wet wiping is achieved, which improves the effect of removing impurities.

[0074] An arc-shaped groove is provided on the inner top wall of the semi-circular frame 11. An internal gear ring 24 is installed in the arc-shaped groove. A driven shaft 25 is installed at the upper end of the cylinder 15 and passes through the arc-shaped groove. A driven gear 26 that meshes with the corresponding internal gear ring 24 is fixedly sleeved on the outside of the driven shaft 25.

[0075] That is, when the arc plate 14 drives the corresponding cylinder 15 to move in a circle around the outside of the pile body, the driven gear 26 on the outside of the driven shaft 25 can mesh with the internal gear ring 24, so that the driven shaft 25 can provide rotational power to the corresponding cylinder 15.

[0076] Furthermore, the implementer can install an arc-shaped rubber sleeve (not shown in the figure) between the arc-shaped wiping plate 21 and the outer side of the corresponding cylinder 15. The ends of the arc-shaped rubber sleeve are connected to the outer side of the arc-shaped wiping plate 21 and the outer side of the cylinder 15 respectively, and can extend and retract synchronously with the movement of the arc-shaped plate 14. The purpose of this is to prevent the residue falling off the outer side of the pile body from falling onto the anti-compression spring 20 between the arc-shaped plate 14 and the cylinder 15, thus affecting the extension and retraction of the anti-compression spring 20. Moreover, the above-mentioned arc-shaped rubber sleeve protection measure is a conventional design in this field, so it will not be described in detail.

[0077] Reference Figure 5 and Figure 6As shown, this is the chiseling unit 3 used to remove loose concrete from the outside of the building piles. Specifically, the chiseling unit 3 includes a telescopic shaft 30, a sliding cylinder 31, a strip groove 32, a strip plate 33, a return spring 34, a vertical shaft 35, a conical block 36, an installation groove 37, a push cylinder 38, a linkage groove 39, and a linkage plate 310. Several telescopic shafts 30 slide through the inner wall of the cylinder 15 and are evenly distributed along its axis and extension. Several sliding cylinders 31 corresponding to the outer side of the telescopic shafts 30 are also installed on the inner wall of the cylinder 15. A strip groove 32 is provided on the inner wall of the telescopic shaft 30, which is connected to the inner wall of the shaft. A strip plate 33 is installed on the outer side of the telescopic shaft 30 and is slidably inserted into the corresponding strip groove 32. A reset spring 34 is installed between the strip plate 33 and the inner side wall of the strip groove 32. When the telescopic shaft 30 is driven by an external force, it can reciprocate on the outer side of the corresponding cylinder 15. During the movement, it can drive the strip plate 33 on its outer side to move synchronously in the strip groove 32. During the movement of the strip plate 33, it can drive the corresponding reset spring 34 to retract synchronously.

[0078] A vertical shaft 35 is slidably installed between the arc plate 14 on one side and the cylinder 15. Several conical blocks 36 are installed on the vertical shaft 35. The telescopic shaft 30 is arc-shaped on one side facing the conical block 36, and the ends of several telescopic shafts 30 corresponding to each other in the lateral direction are in contact with the outer side of the adjacent conical block 36.

[0079] A mounting groove 37 extending to the outside of one end is provided at the bottom of one side of the arc plate 14. A push cylinder 38 is installed in the mounting groove 37. A linkage groove 39 is also provided at the bottom of the arc plate 14, with one side communicating with the mounting groove 37. The linkage groove 39 corresponds to the bottom of several vertical shafts 35. A linkage plate 310 located in the linkage groove 39 is installed on the telescopic end of the push cylinder 38. The linkage plate 310 is connected to the bottom of several vertical shafts 35.

[0080] The extension end of the cylinder 38 can drive the linkage plate 310 to move up and down in the linkage groove 39. During the movement, the linkage plate 310 can drive the vertical shaft 35 to move up and down in the cylinder 15 and the arc plate 14. The vertical shaft 35 corresponds to the axis of the cylinder 15, so it will not interfere with the rotation of the cylinder 15. The vertical shaft 35 can drive several conical blocks 36 on the outer side of its extension section to move synchronously, so that the conical blocks 36 can be driven to move on the outer side of the cylinder 15 through the arc surface of the corresponding extension shaft 30 body. When the conical blocks 36 descend and no longer resist the arc surface of the extension shaft 30, the reset spring 34 will drive the extension shaft 30 to move into the cylinder 15 through the strip plate 33.

[0081] In the specific implementation process, when treating the loose concrete on the outside of the pile body, the cylinder 38 drives the linkage plate 310 to move the vertical shaft 35 along the arc plate 14. The conical block 36 on the vertical shaft 35 moves synchronously, and the arc surface at the end of the telescopic shaft 30 applies a thrust, causing the telescopic end of the telescopic shaft 30 to extend from the through-hole of the cylinder 15 and contact the outside of the pile body. The telescopic shaft 30 adopts the existing spring-driven shaft structure with an internal push spring. Its end can be set as a pointed cone or convex shape according to actual needs. When the contact part is hard concrete with sufficient strength, the telescopic shaft 30 is compressed and contracted by the reaction force. When the contact part is loose concrete, the telescopic end of the telescopic shaft 30 directly impacts it, causing the loose concrete to detach from the pile body.

[0082] For concrete with varying degrees of looseness, the vertical displacement height of the vertical shaft 35 and the conical block 36 can be controlled by adjusting the extension and retraction of the cylinder 38, thereby changing the length of the extension end of the telescopic shaft 30 extending out of the cylinder 15 and achieving precise adjustment of the contact force. Simultaneously, because the outer side of the cylinder 15 protrudes from the inner wall of the arc-shaped plate 14, a pre-reserved gap is formed between the arc-shaped plate 14 and the outer side of the pile body. Concrete debris generated during chiseling can fall directly to the ground through this gap. Even if some debris falls into the circular groove of the arc-shaped plate 14, it will be carried out synchronously to the outside of the groove as the cylinder 15 continues to rotate, ensuring a clean working area. The debris handling method of the aforementioned wiping unit 2 is consistent with that of this chiseling unit 3, both achieving natural discharge of debris through this structure.

[0083] Reference Figure 5 and Figure 7 As shown, a vibration assembly 4 for generating vibration force is also installed inside the cylinder 15. Specifically, the vibration assembly 4 includes a vibration shaft 40 and a cam 41. The vibration shaft 40 is installed on the inner top wall of the cylinder 15, and the cam 41 is fixedly sleeved on the outer side of the vibration shaft 40. That is, when the cylinder 15 rotates, the vibration shaft 40 can drive the cam 41 to rotate synchronously along its axis. During the rotation, the cam 41 will generate an eccentric force, and the generated vibration force will be transmitted to the cylinder 15 through the vibration shaft 40, providing high-frequency vibration support for the cylinder 15 and the functional units it carries. For the wiping unit 2, the vibration force causes the arc-shaped wiping plate 21 to form high-frequency micro-friction with the surface of the pile body, which enhances the peeling effect of floating dust and mud, and is especially effective for cleaning tightly attached impurities more thoroughly.

[0084] For chiseling unit 3, the vibration force is transmitted to the end of the telescopic shaft 30, enhancing its impact crushing ability on loose concrete, accelerating the disintegration of loose structures, and significantly improving chiseling efficiency and work quality. At the same time, the vibration shaft 40 rotates synchronously with the cylinder 15, ensuring a continuous and stable output of vibration force, and the vibration direction is coordinated with the working direction of the functional unit to avoid ineffective vibration loss.

[0085] Reference Figures 8 to 12As shown, this is the mounting assembly 5 used to install the semicircular hoop 16 on the outside of the building pile; specifically, the mounting assembly 5 includes a sliding groove 50, a sliding plate 51, a mounting screw 52, ​​a pushing groove 53, a pushing plate 54, an insertion inclined groove 55, a snap-fit ​​block 56, an insertion plate 57, a triangular block 58, a bent pipe 59, and a grouting groove 510. The sliding groove 50 is opened on the inner top wall of the lower circular cavity 13. The sliding plate 51 is slidably installed in the sliding groove 50. The mounting screw 52 is rotatably installed in the sliding groove 50, and the mounting screw 52 passes through the middle of the sliding plate 51 and is threadedly connected to it. The upper end of the semicircular hoop 16 is provided with a pushing groove 53 corresponding to the bottom of one side of the sliding plate 51. The bottom of the sliding plate 51 is installed with a pushing plate 54 located in the corresponding pushing groove 53.

[0086] When the screw rod 52 is driven to rotate by an external force, it can drive the corresponding sliding plate 51 to move under the limiting guidance of the sliding groove 50. When installing the semi-circular hoop 16, first open the two semi-circular frames 11 through their hinge points, so that the lower circular cavity 13 inside the semi-circular frame 11 is exposed on the outside. Then place the two semi-circular hoops 16 in the corresponding lower circular cavities 13 respectively, so that the pushing groove 53 at the upper end of the semi-circular hoop 16 contacts the adjacent pushing plate 54. Then drive the two semi-circular frames 11 to close on the outside of the pile body.

[0087] Both ends of one side of the semicircular hoop 16 are provided with insertion grooves 55, and the insertion grooves 55 are provided with snap-fit ​​blocks 56. Both ends of the other side of the semicircular hoop 16 are provided with insertion plates 57, and several triangular blocks 58 are provided on one side of the insertion plates 57. A bent pipe 59 is installed through one side of the semicircular frame 11, and one end of the bent pipe 59 extends into the lower circular cavity 13. A grouting groove 510 with an end extending to its outer wall is provided inside one side of the semicircular hoop 16.

[0088] When it is necessary to fix the two semicircular hoops 16 to the outside of the pile body, the installation screw 52 rotates to drive the sliding plate 51 to move along the sliding groove 50. The push plate 54 at the bottom of the sliding plate 51 is embedded in the push groove 53 at the upper end of the semicircular hoop 16, and simultaneously pushes the two semicircular hoops 16 to move relative to each other towards the pile body. During the movement, the insertion plate 57 at the end of one semicircular hoop 16 is precisely inserted into the insertion groove 55 of the other semicircular hoop 16. The insertion plate 57 is made of a material that combines rigidity and deformability, such as spring steel, and has both structural strength and a certain deformation capacity. When inserted, it undergoes skew deformation along the inclined surface of the insertion groove 55. As the insertion depth increases, the triangular block 58 on the insertion plate 57 abuts against the snap block 56 in the insertion groove 55. With the elastic restoring force of the insertion plate 57 itself, the two semicircular hoops 16 are firmly spliced ​​together to form a complete circular hoop fitted to the outside of the pile body. During this process, the cooperation between the push plate 54 and the push groove 53 can limit the lateral displacement of the semicircular hoop 16, while the fit between the inner diameter of the semicircular hoop 16 and the outer side of the pile body provides a guiding effect, ensuring that the insertion plate 57 accurately aligns with the insertion groove 55.

[0089] The outer end of the bent pipe 59 is connected to the external grouting equipment. After the semicircular hoop 16 is spliced ​​and fixed, the upper end of the grouting groove 510 inside it is precisely aligned with the inner end of the bent pipe 59. The repair mortar delivered by the external grouting equipment flows into the grouting groove 510 through the bent pipe 59, and then is dispersed by the grouting groove 510 into the gap between the semicircular hoop 16 and the outer side of the pile body, which not only fills the defects in the pile body, but also fixes the semicircular hoop 16 to the pile body. Since there is a height difference between the upper circular cavity 12 and the lower circular cavity 13, after the wiping and chiseling process is completed, the rocker arm mechanism 10 drives the semicircular frame 11 to rise as a whole, so that the semicircular hoop 16 is precisely aligned with the area of ​​the pile body that has been cleaned and chiseled, ensuring the repair effect.

[0090] The vibration force generated by the vibration component 4 acts synchronously on the lower circular cavity 13, which on the one hand promotes the uniform distribution of mortar in the gap between the semi-circular hoop 16 and the pile body, improving the filling density; on the other hand, it can shake off the concrete residue that falls onto the surface of the lower circular cavity 13 and the semi-circular hoop 16, avoiding interference with the splicing of the semi-circular hoop 16 and the mortar injection. At this time, the telescopic shaft 30 of the chiseling unit 3 is controlled to retract into the cylinder 15. Even if the wiping unit 2 rotates slightly with the cylinder 15, it will only further clean the impurities remaining on the outer side of the upper pile body, without affecting the outer side of the upper pile body.

[0091] Example 2: Refer to Figure 8 and Figure 9As shown, based on Embodiment 1, in order to drive the arc plate 14 to move within the upper circular cavity 12 and drive the mounting screw 52 to rotate, a drive unit 6 is installed inside both semi-circular frames 11. Specifically, the drive unit 6 includes an external rack 60, a drive groove 61, a dual-axis motor 62, a ratchet component 63, a mounting gear 64, and a second ratchet component 65. The external rack 60 is installed at the bottom of the arc plate 14, and a drive groove 61 is provided inside the semi-circular frame 11. One side of the drive groove 61 is connected to the inside of the upper circular cavity 12. The dual-axis motor 62 is installed in the drive groove 61, and a ratchet component 63 that meshes with the external rack 60 is fixedly sleeved on the main shaft at the top of the dual-axis motor 62.

[0092] The bottom of the drive groove 61 is also connected to the top of the sliding groove 50. The outer side of the mounting screw 52 is fixedly fitted with a mounting gear 64, and the main shaft at the bottom of the dual-axis motor 62 extends into the sliding groove 50 and is fixedly fitted with a ratchet part 65 that meshes with the mounting gear 64. The driving directions of the ratchet part 63 and the ratchet part 65 are opposite.

[0093] The dual-axis motor 62 can be adjusted to rotate in both directions. Combined with the unidirectional transmission characteristics of ratchet component 1 63 and ratchet component 2 65, the two arc-shaped plates 14 are driven to move within the upper circular cavity 12 through the meshing of ratchet component 1 63 with the external rack 60. At this time, ratchet component 2 65 will not drive the mounting screw 52 to rotate. In addition, ratchet component 2 65 will rotate in the opposite direction, driving the mounting screw 52 to rotate through the mounting gear 64. At this time, ratchet component 1 63 will not drive the arc-shaped plate 14 to move, causing the push plate 54 to move. Since the thread on the mounting screw 52 is a reciprocating bidirectional thread, the push plate 54 can move in the opposite direction again after pushing the corresponding semicircular hoop 16 to the designated position, thus achieving a reset.

[0094] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0095] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid repair and reinforcement device for defects in building pile foundations, characterized in that: include: A substrate (1) has a rocker arm mechanism (10) mounted on its upper end. Two semicircular frames (11) are hinged to each other at both ends. One semicircular frame (11) is connected to the rocker arm mechanism (10). The upper circular cavity (12) and the lower circular cavity (13) are opened inside the semicircular frame (11). When the two semicircular frames (11) are closed, they are fitted on the outside of the pile body. Two arc-shaped plates (14) are slidably installed in two upper circular cavities (12) respectively. When the two semi-circular frames (11) are closed, the two upper circular cavities (12) inside form a ring structure cavity. The arc-shaped plates (14) move axially along the axis of the pile body. Several circular grooves are opened inside the arc-shaped plates (14) along their arc-shaped extensions. Several cylinders (15) are rotatably installed in their respective circular grooves; Wiping unit (2) and chiseling unit (3) are respectively installed in the cylinder (15) of the two side arc plates (14). Wiping unit (2) is used to wipe the outside of the pile body, and chiseling unit (3) is used to chisel the loose concrete on the outside of the pile body. Two semi-circular hoops (16) are respectively installed in the two lower circular cavities (13); The mounting component (5) is placed inside the lower circular cavity (13) to fix the semi-circular hoop (16) to the outside of the pile body.

2. The rapid repair and reinforcement device for defects in building pile foundations according to claim 1, characterized in that: The wiping unit (2) includes: Several compression springs (20) are distributed and installed on the outside of the cylinder (15) along the axis of the cylinder (15); The arc-shaped rubbing plate (21) is installed at the end of the pressure spring (20), and the pressure spring (20) drives the arc-shaped rubbing plate (21) to contact the outside of the pile body.

3. The rapid repair and reinforcement device for defects in building pile foundations according to claim 2, characterized in that: The wiping unit (2) also includes: Several water storage tanks (22) are installed on the upper end of the semi-circular frame (11); The water outlet pipe (23) is installed through the water storage tank (22) on the side facing the cylinder (15).

4. The rapid repair and reinforcement device for defects in building pile foundations according to claim 3, characterized in that: The wiping unit (2) also includes: The inner gear ring (24) has an arc-shaped groove on the top wall of the semi-circular frame (11), and the inner gear ring (24) is installed in the arc-shaped groove; Driven shaft (25) is installed on the upper end of cylinder (15) and passes through the arc groove; The driven gear (26) is fixedly sleeved on the outside of the driven shaft (25) and meshes with the internal gear ring (24).

5. The rapid repair and reinforcement device for defects in building pile foundations according to claim 1, characterized in that: The excavation unit (3) includes: Several telescopic shafts (30) are evenly distributed along the axis and extension of the cylinder (15) and slide through the inner wall of the cylinder (15); Several sliding cylinders (31) are installed on the inner wall of the cylinder (15) and correspond to the outer side of the telescopic shaft (30). A strip groove (32) with one end communicating with its interior is opened on the inner wall of the sliding cylinder (31). A strip plate (33) is installed on the outside of the telescopic shaft (30) and is slidably inserted into the corresponding strip groove (32); The reset spring (34) is installed between the inner wall of the strip plate (33) and the strip groove (32).

6. The rapid repair and reinforcement device for defects in building pile foundations according to claim 5, characterized in that: The removal unit (3) also includes: The vertical shaft (35) is slidably installed between the arc-shaped plate (14) and the cylinder (15) on one side; Several conical blocks (36) are mounted on a vertical shaft (35). The telescopic shaft (30) is arc-shaped on one side facing the conical block (36), and the ends of several telescopic shafts (30) corresponding to each other in the lateral direction are in contact with the outer side of the adjacent conical block (36).

7. The rapid repair and reinforcement device for defects in building pile foundations according to claim 1, characterized in that: A vibration assembly (4) is installed inside the cylinder (15). The vibration assembly (4) includes: The vibration shaft (40) is installed on the inner top wall of the cylinder (15); The cam (41) is fixedly sleeved on the outside of the vibration shaft (40).

8. The rapid repair and reinforcement device for defects in building pile foundations according to claim 1, characterized in that: Installation component (5) includes: A sliding groove (50) is formed on the inner top wall of the lower circular cavity (13); The sliding plate (51) is slidably installed in the sliding groove (50); Install the lead screw (52), which is rotatably installed in the sliding groove (50) and passes through the middle of the sliding plate (51) and is threadedly connected to it; The push groove (53) is opened at the upper end of the semi-circular hoop (16) and corresponds to the bottom of the sliding plate (51) on one side; A push plate (54) is installed at the bottom of the sliding plate (51) and located in the corresponding push groove (53); An inclined groove (55) is inserted at both ends of a semi-circular hoop (16) on one side, and a snap-fit ​​block (56) is installed inside the inclined groove (55). Insertion plate (57) is installed at both ends of the other side of the semicircular hoop (16), and several triangular blocks (58) are installed on one side of the insertion plate (57).

9. The rapid repair and reinforcement device for defects in building pile foundations according to claim 8, characterized in that: Installation component (5) also includes: A bent tube (59) is installed through one side of a semi-circular frame (11), with one end extending into the lower circular cavity (13); The pouring channel (510) is opened inside the semicircular hoop (16) on one side, and its end extends to the outer wall of the semicircular hoop (16).

10. A method for rapid repair of defects in building pile foundations, comprising a rapid repair and reinforcement device for defects in building pile foundations as described in any one of claims 1-9, characterized in that, The reinforcement method includes the following steps: S1. Device preparation: Start the rocker arm mechanism (10) and adjust the height of the semicircular frame (11) to align with the defect area of ​​the pile body. After the two semicircular frames (11) open to cover the pile, they close and fix. S2, Wiping and Chipping: Drive the arc plate (14) inside the upper circular cavity (12) to move along the pile axis, and simultaneously drive the cylinder (15) on the arc plate (14) to rotate. Utilize the wiping unit (2) and chiseling unit (3) mounted on the cylinder (15) to complete the cleaning of the pile body and the removal of loose concrete through the coordinated movement and rotation. S3, Installation of semi-circular hoop: Start the installation component (5) of the lower circular cavity (13), push the semi-circular hoop (16) to move towards the pile body, so that the two semi-circular hoops (16) are spliced ​​together and tightly attached to the outside of the pile body for fixation; S4. Concrete pouring: The installation component (5) pours repair concrete into the gap between the semicircular hoop (16) and the pile body. After it solidifies, the pile body defect is repaired and the semicircular hoop (16) is reinforced and fixed.

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