An auxiliary tool for anti-floating anchor rod installation and construction method

Abstract

The application discloses an auxiliary tool for anti-floating anchor rod installation and a construction method, belongs to the technical field of anti-floating anchor rod installation tools, and comprises a base, the top surface of the base is fixed with a control console, the top surface of the control console is provided with a control groove for penetrating a drill rod, a control gear is rotatably installed in the control console, the inner circumferential surface of the control gear is fixed with a synchronous block, the outer circumferential surface of the drill rod is provided with a synchronous groove, the synchronous block is slidably connected with the drill rod along the vertical direction through the synchronous groove, and a driving assembly for driving the control gear to rotate is arranged in the control console; the top surface of the base is fixed with a fixing frame, a push plate is slidably installed on the fixing frame along the vertical direction, a pushing assembly for pushing the push plate to move along the vertical direction is arranged on the control console, the top end of the drill rod is rotatably installed with a connecting block, and the push plate is in clamping connection with the connecting block. The application has the effect that the drill rod can be conveniently replaced.

Description

Technical Field

[0001] This application relates to the technical field of anti-buoyancy anchor installation tools, and in particular to an auxiliary tool and construction method for installing anti-buoyancy anchors. Background Technology

[0002] Anti-buoyancy anchors are a type of anti-buoyancy measure for underground structures in building engineering. Unlike ordinary foundation piles, anti-buoyancy anchors have their own unique properties. The biggest difference between them is that foundation piles are usually compression piles, where the pile body bears the pressure of the building load, and the force is transmitted from the top of the pile to the bottom of the pile. The magnitude of the force on the pile body changes with the change of the building load. On the other hand, anti-buoyancy piles are tension piles, where the force is also transmitted from the top of the pile to the bottom of the pile. The magnitude of the force on the pile body changes with the change of the groundwater level, but the force mechanisms of the two are exactly opposite.

[0003] When installing anti-floating anchor bolts, drilling rigs are usually used to drill holes first. The drilling rig rotates the drill rod into the anchor bolt installation position. After prolonged use, the drill rod is prone to damage and needs to be replaced. Since the drill rod is long, it usually needs to be laid flat before disassembly and reassembly, which is quite troublesome. Summary of the Invention

[0004] To address the issue of cumbersome drill pipe disassembly and replacement, this application provides an auxiliary tool and construction method for installing anti-buoyancy anchor bolts.

[0005] Firstly, the auxiliary tool for installing anti-buoyancy anchor bolts provided in this application adopts the following technical solution: An auxiliary tool for installing an anti-buoyancy anchor bolt includes a base, a control console fixed to the top surface of the base, a control through slot for threading a drill rod on the top surface of the control console, a control gear rotatably mounted inside the control console, a synchronizing block fixed to the inner circumferential surface of the control gear, a synchronizing groove on the outer circumferential surface of the drill rod, the synchronizing block slidingly engaging with the drill rod vertically through the synchronizing groove, and a drive assembly for driving the control gear to rotate inside the control console; a fixing frame fixed to the top surface of the base, a push plate slidingly mounted on the fixing frame vertically, a push assembly for pushing the push plate vertically on the control console, and a connecting block rotatably mounted to the top end of the drill rod, the push plate engaging with the connecting block.

[0006] By adopting the above technical solution, a drive assembly is used to drive the control gear to rotate. The control gear drives the drill rod to rotate synchronously through the cooperation of the synchronizing block and the synchronizing slot. The connecting block is engaged with the push plate. The push assembly drives the push plate to move downward, which in turn pushes the drill rod downward, thereby rotating and moving the drill rod downward to achieve drilling. When the drill rod needs to be replaced, the connecting block is separated from the push plate, and then the drill rod is moved upward and disengaged from the control slot to disassemble the drill rod for easy replacement.

[0007] Preferably, the console has a mounting cavity, the drive assembly includes a drive rod rotatably mounted in the mounting cavity, a drive gear is fixedly fitted on the outer circumferential surface of the drive rod, the drive gear meshes with the control gear, a drive motor is fixedly mounted on the top surface of the console, and the output shaft of the drive motor is fixedly connected to the top end of the drive rod.

[0008] By adopting the above technical solution, the drive motor is started, the drive motor drives the drive rod to rotate, the drive rod drives the drive gear to rotate, the drive gear drives the control gear to rotate, thereby driving the drill rod to rotate.

[0009] Preferably, the pushing assembly includes a pushing screw rotatably mounted on the console, a pushing plate threadedly engaging with the pushing screw, the pushing screw being vertically positioned, a clearance slot for the pushing screw to pass through the top surface of the console, a pushing gear sleeved on the outer circumferential surface of the pushing screw, the pushing gear being rotatably connected to the console, the pushing gear meshing with the drive gear, a limiting groove being formed on the outer circumferential surface of the pushing screw, a limiting block being fixed to the inner circumferential surface of the pushing gear, and the limiting block slidingly engaging with the pushing screw vertically through the limiting groove.

[0010] By adopting the above technical solution, the drive gear drives the push gear to rotate, and the push gear drives the push screw to rotate through the cooperation of the limit block and the limit groove. The push screw drives the push plate to slide vertically, thereby applying downward pressure to the drill rod.

[0011] Preferably, the fixing frame includes a fixing rod fixed to the top surface of the base, a fixing plate fixed to the top end of the fixing rod, the top end of the pushing screw being rotatably connected to the fixing plate, and the pushing plate being sleeved on the outer peripheral surface of the fixing plate.

[0012] By adopting the above technical solution, the push plate is sleeved on the outer periphery of the fixed rod, and the fixed rod provides a guiding effect for the push plate, so that the push plate always moves vertically.

[0013] Preferably, the bottom surface of the push plate is provided with a connecting groove for inserting the connecting block, the inner wall of the connecting groove is provided with a snap-fit ​​groove, the push plate is slidably mounted with the snap-fit ​​block through the snap-fit ​​groove, and the side of the connecting block is provided with a positioning groove for inserting the snap-fit ​​block.

[0014] By adopting the above technical solution, the connecting block is inserted into the connecting groove, and the snap-fit ​​block is inserted into the positioning groove, thereby snapping and fixing the connecting block and the push plate so that the push plate can drive the drill rod to move downward.

[0015] Preferably, a snap-fit ​​spring is fixed to the side of the snap-fit ​​block away from the connecting block, and the end of the snap-fit ​​spring away from the snap-fit ​​block is fixedly connected to the inner wall of the snap-fit ​​groove. The bottom surface of the snap-fit ​​block is provided with an advancing inclined surface, which is located on the side of the snap-fit ​​block near the connecting block.

[0016] By adopting the above technical solution, the drill rod is moved upward, so that the connecting block is inserted into the connecting groove. The connecting block first abuts against the advancing inclined surface, and then the advancing inclined surface pushes the locking block completely into the locking groove, so that the connecting block can continue to move upward. When the top surface of the connecting block abuts against the inner top surface of the connecting groove, the locking block is inserted into the positioning groove under the elastic force of the locking spring, thereby realizing the locking engagement between the connecting block and the push plate.

[0017] Preferably, the top surface of the push plate is provided with an abutment groove that communicates with the snap-fit ​​groove. The push plate slides vertically along the abutment groove to install an abutment block. The top surface of the snap-fit ​​block is provided with a pressing groove for inserting the abutment block. The bottom surface of the abutment block is provided with an abutment slope. The inner wall of the pressing groove away from the connecting block is provided with a pressing slope for abutting against the abutment slope.

[0018] By adopting the above technical solution, when the drill rod needs to be disassembled and replaced, the drive motor is reversed, causing the push screw to rotate in the opposite direction. The push plate moves the drill rod upward, and the abutment block first abuts against the bottom surface of the fixed plate. Under the pressure of the fixed plate, the abutment block moves downward, and the abutment slope abuts against the pressure slope, causing the locking block to move away from the connecting block. The locking block disengages from the positioning groove, and the push plate releases the restriction on the connecting block, thus facilitating the disassembly and replacement of the drill rod by construction personnel.

[0019] Preferably, a reset block is fixed to the side of the abutment block, a reset groove is formed on the inner wall of the abutment groove, the reset block is slidably connected to the push plate in the vertical direction through the reset groove, a reset spring is fixed to the bottom surface of the reset block, and the bottom end of the reset spring is fixedly connected to the inner wall of the reset groove.

[0020] By adopting the above technical solution, after the drill rod is disassembled, the connecting block is separated from the connecting groove. The drive motor is started, and the drive motor drives the push screw to rotate. The push screw drives the push plate to move downward, and the abutment block separates from the fixed plate. Under the elastic force of the return spring, the abutment block moves upward, thereby resetting the abutment block.

[0021] Secondly, this application provides a construction method for auxiliary tools used in the installation of anti-buoyancy anchors, which adopts the following technical solution and includes the following steps: Place the base at the construction location, aligning the drill rod with the anchor rod to be installed. Use the drive assembly to drive the control gear to rotate, which in turn drives the drill rod to rotate. Simultaneously, use the push assembly to push the push plate downwards, which in turn moves the drill rod downwards, causing it to rotate and move down. After removing the drill rod, clean the borehole. Insert the anti-buoyancy anchor rod into the borehole and then perform pressure grouting.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The drive assembly drives the control gear to rotate. The control gear drives the drill rod to rotate synchronously through the cooperation of the synchronizing block and the synchronizing slot. The connecting block engages with the push plate. The push assembly drives the push plate to move downward, which in turn pushes the drill rod downward, thus rotating and moving the drill rod downward to achieve drilling. When the drill rod needs to be replaced, the connecting block is separated from the push plate, and then the drill rod is moved upward and disengaged from the control slot to disassemble the drill rod for easy replacement. 2. Move the drill rod upward so that the connecting block is inserted into the connecting groove. The connecting block first abuts against the infeeding inclined surface, and then pushes the locking block completely into the locking groove through the infeeding inclined surface, so that the connecting block can continue to move upward. When the top surface of the connecting block abuts against the inner top surface of the connecting groove, the locking block is inserted into the positioning groove under the elastic force of the locking spring, thereby realizing the locking engagement between the connecting block and the push plate. 3. After the drill rod is disassembled, the connecting block is released from the connecting groove. Start the drive motor, and the drive motor drives the push screw to rotate. The push screw drives the push plate to move downward, and the abutment block separates from the fixed plate. Under the elastic force of the return spring, the abutment block moves upward, thereby resetting the abutment block. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the auxiliary tool for installing anti-buoyancy anchor bolts according to an embodiment of this application.

[0024] Figure 2 This is a cross-sectional view of the control console in the auxiliary tool for installing anti-buoyancy anchor bolts according to an embodiment of this application.

[0025] Figure 3 This is a cross-sectional view of the push plate in the auxiliary tool for installing anti-buoyancy anchor bolts according to an embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the abutment block and locking block in the auxiliary tool for installing anti-buoyancy anchor bolts according to an embodiment of this application.

[0027] Reference numerals: 1. Base; 11. Fixing frame; 12. Fixing rod; 13. Fixing plate; 14. Mounting slot; 15. Push plate; 16. Connecting slot; 17. Drill rod; 18. Connecting block; 2. Control console; 21. Control slot; 22. Control ring slot; 23. Control gear; 24. Synchronizing block; 25. Synchronizing slot; 3. Drive assembly; 31. Mounting cavity; 32. Drive rod; 33. Drive gear; 34. Drive motor; 4. Pushing component; 41. Clearance slot; 42. Pushing screw; 43. Clearance ring groove; 44. Pushing gear; 45. Limiting block; 46. Limiting groove; 5. Snap-fit ​​block; 51. Snap-fit ​​groove; 52. Snap-fit ​​spring; 53. Positioning groove; 54. Advance slope; 55. Pressing slot; 56. Pressing slope; 6. Abutting block; 61. Abutting groove; 62. Abutting slope; 63. Reset block; 64. Reset groove; 65. Reset spring. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses an auxiliary tool and construction method for installing anti-buoyancy anchor bolts. (Refer to...) Figure 1 and Figure 2 The auxiliary tools for installing anti-buoyancy anchor bolts include a base 1, a control console 2 and a fixing frame 11 fixed to the top surface of the base 1, and a fixing rod 12 and a fixing plate 13 fixed to the top of the fixing rod 12. The fixing rod 12 is vertically arranged. A push plate 15 is sleeved on the outer periphery of the fixing rod 12, and a push assembly 4 for the push plate 15 to slide vertically is provided on the control console 2. A connecting block 18 is rotatably installed at the top of the drill rod 17, and the connecting block 18 can be engaged with the push plate 15. A control through slot 21 for the drill rod 17 to pass through is opened on the top surface of the control console 2, and an installation through slot 14 for the drill rod 17 to pass through is opened on the top surface of the base 1. An installation cavity 31 is provided inside the control console 2, and a drive assembly 3 for driving the drill rod 17 to rotate is provided inside the installation cavity 31.

[0030] Reference Figure 1 and Figure 2The drive assembly 3 includes a drive rod 32 rotatably mounted in the mounting cavity 31, and the drive rod 32 is vertically arranged. A drive motor 34 is fixed on the top surface of the control console 2, and the output end of the drive motor 34 is fixedly connected to the top end of the drive rod 32. A drive gear 33 is fixedly fitted on the outer circumferential surface of the drive rod 32. A control ring groove 22 communicating with the mounting cavity 31 is opened on the inner circumferential surface of the control through groove 21. A control gear 23 that meshes with the drive gear 33 is rotatably mounted in the control ring groove 22. The control gear 23 is fitted on the outer circumferential surface of the drill rod 17. A synchronizing block 24 is fixed on the inner circumferential surface of the control gear 23. A synchronizing groove 25 for inserting the synchronizing block 24 is opened on the outer circumferential surface of the drill rod 17. The synchronizing groove 25 is arranged along the length direction of the drill rod 17. The synchronizing block 24 slides and engages with the drill rod 17 vertically through the synchronizing groove 25.

[0031] Start the drive motor 34, which drives the drive rod 32 to rotate synchronously. The drive rod 32 drives the drive gear 33 to rotate synchronously. The drive gear 33 drives the control gear 23 to rotate. The control gear 23 drives the drill rod 17 to rotate synchronously through the synchronization block 24 and the synchronization groove 25, thereby driving the drill rod 17 to rotate.

[0032] Reference Figure 1 and Figure 2 The top surface of the control console 2 has a clearance groove 41. The pushing assembly 4 includes a pushing screw 42 rotatably installed in the clearance groove 41. The pushing screw 42 and the fixed rod 12 are arranged parallel to each other, and the top end of the pushing screw 42 is rotatably connected to the fixed plate 13. The pushing plate 15 is sleeved on the outer periphery of the pushing screw 42, and the pushing plate 15 and the pushing screw 42 are threadedly connected. The inner wall of the clearance groove 41 has a clearance ring groove 43, and a pushing gear 44 is rotatably installed in the clearance ring groove 43. The pushing gear 44 meshes with the drive gear 33. The pushing gear 44 is sleeved on the outer peripheral surface of the pushing screw 42. A limiting block 45 is fixed on the inner peripheral surface of the pushing gear 44, and a limiting groove 46 is opened on the outer peripheral surface of the pushing rod. The limiting groove 46 is arranged along the length direction of the pushing rod, and the limiting block 45 slides vertically with the pushing screw 42 through the limiting groove 46.

[0033] Start the drive motor 34, which drives the drive rod 32 to rotate. The drive rod 32 drives the drive gear 33 to rotate, which in turn drives the push gear 44 to rotate. The push gear 44 drives the push screw 42 to rotate synchronously through the limit block 45 and the limit groove 46. The push screw 42 drives the push plate 15 to move vertically. The push plate 15 is locked and fixed with the connecting block 18, which in turn drives the drill rod 17 to move downward, thereby causing the drill rod 17 to rotate and move downward to drill a hole.

[0034] Reference Figure 1 and Figure 3The bottom surface of the push plate 15 has a connecting groove 16 for inserting the connecting block 18. The inner sides of the connecting groove 16 each have a snap-fit ​​groove 51. The push plate 15 slides along its length via the snap-fit ​​groove 51 to mount the snap-fit ​​block 5. The side of the connecting block 18 has a positioning groove 53 for inserting the snap-fit ​​block 5. A snap-fit ​​spring 52 is fixed to the side of the snap-fit ​​block 5 away from the connecting block 18. One end of the snap-fit ​​spring 52 away from the snap-fit ​​block 5 is fixedly connected to the inner wall of the snap-fit ​​groove 51 away from the connecting block 18. The bottom surface of the snap-fit ​​block 5 has an advancing ramp 54 located on the side of the snap-fit ​​block 5 near the connecting block 18.

[0035] When the connecting block 18 is moved upward, the connecting block 18 pushes the snap-fit ​​block 5 towards the snap-fit ​​spring 52 via the advancing inclined surface 54. The snap-fit ​​spring 52 is in a compressed state, and the snap-fit ​​block 5 is fully inserted into the snap-fit ​​groove 51, so that the connecting block 18 can enter the connecting groove 16. When the top surface of the connecting block 18 abuts against the inner top surface of the connecting groove 16, the snap-fit ​​block 5 moves towards the connecting block 18 under the elastic force of the snap-fit ​​spring 52 and inserts into the positioning groove 53, thereby snapping and fixing the connecting block 18 and the push plate 15, which is convenient for installation.

[0036] Reference Figure 3 and Figure 4 The top surface of the push plate 15 has an abutment groove 61 that communicates with the snap-fit ​​groove 51. The push plate 15 slides vertically along the abutment block 6 through the abutment groove 61. The top surface of the snap-fit ​​block 5 has an abutment through groove 55 for inserting the abutment block 6. The inner wall of the abutment through groove away from the connecting block 18 has an abutment slope 56. The bottom surface of the abutment block 6 has an abutment slope 62 for abutting against the abutment slope 56. Reset blocks 63 are fixed on both sides of the abutment block 6. The inner wall of the abutment groove 61 has a reset groove 64. The reset block 63 slides vertically with the push plate 15 through the reset groove 64. A reset spring 65 is fixed on the bottom surface of the reset block 63. The bottom end of the reset spring 65 is fixedly connected to the inner bottom surface of the reset groove 64.

[0037] The drive motor 34 is reversed, which in turn drives the push screw 42 to rotate in the opposite direction. The push screw 42 drives the push plate 15 to move upward, and the push plate 15 drives the drill rod 17 to move upward. When the drill rod 17 is disengaged from the control through slot 21, the abutment block 6 abuts against the inner bottom surface of the fixing plate 13. The abutment block 6 moves downward relative to the push plate 15, and the abutment inclined surface 62 abuts against the pressing inclined surface 56. The abutment block 6 pushes the locking block 5 to move away from the connecting block 18, so that the locking block 5 is disengaged from the positioning slot 53, thereby releasing the restriction on the connecting block 18, so that the construction personnel can disassemble and replace the drill rod 17.

[0038] The implementation principle of the auxiliary tool and construction method for installing anti-buoyancy anchor bolts in this application embodiment is as follows: Start the drive motor 34, the drive motor 34 drives the drive rod 32 to rotate synchronously, the drive rod 32 drives the drive gear 33 to rotate synchronously, the drive gear 33 drives the control gear 23 and the push gear 44 to rotate, the control gear 23 drives the drill rod 17 to rotate synchronously through the synchronization block 24 and the synchronization groove 25, the push gear 44 drives the push screw 42 to rotate synchronously through the limit block 45 and the limit groove 46, the push screw 42 drives the push plate 15 to move downward, thereby causing the drill rod 17 to rotate and move downward.

[0039] A construction method for an auxiliary tool for installing an anti-buoyancy anchor includes the following steps: placing the base 1 at the construction position of the anti-buoyancy anchor, aligning the drill rod 17 with the position of the anchor to be installed, starting the drive motor 34, rotating the drill rod 17 downward to drill a hole, cleaning the hole after drilling, inserting the anti-buoyancy anchor into the hole, and finally performing pressure grouting to complete the installation of the anti-buoyancy anchor.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary tool for installing anti-buoyancy anchor bolts, characterized in that: The system includes a base (1), a control console (2) fixed to the top surface of the base (1), a control slot (21) for a drill rod (17) to pass through the top surface of the control console (2), a control gear (23) rotatably mounted inside the control console (2), a synchronization block (24) fixed to the inner circumferential surface of the control gear (23), a synchronization groove (25) on the outer circumferential surface of the drill rod (17), and the synchronization block (24) slidingly engaging with the drill rod (17) vertically through the synchronization groove (25). The control console (2) is provided with a drive assembly (3) for driving the control gear (23) to rotate; a fixed frame (11) is fixed on the top surface of the base (1), a push plate (15) is slidably mounted on the fixed frame (11) along the vertical direction, a push assembly (4) is provided on the control console (2) for pushing the push plate (15) to move vertically, a connecting block (18) is rotatably mounted on the top end of the drill rod (17), and the push plate (15) and the connecting block (18) are engaged in a snap-fit ​​cooperation; The console (2) is provided with an installation cavity (31). The drive assembly (3) includes a drive rod (32) rotatably installed in the installation cavity (31). A drive gear (33) is sleeved and fixed on the outer circumferential surface of the drive rod (32). The drive gear (33) meshes with the control gear (23). A drive motor (34) is fixed on the top surface of the console (2). The output shaft of the drive motor (34) is fixedly connected to the top end of the drive rod (32). The pushing assembly (4) includes a pushing screw (42) rotatably mounted on the console (2), a pushing plate (15) threadedly engaging with the pushing screw (42), the pushing screw (42) being arranged vertically, a clearance slot (41) for the pushing screw (42) to pass through the top surface of the console (2), a pushing gear (44) being sleeved on the outer circumferential surface of the pushing screw (42), the pushing gear (44) being rotatably connected to the console (2), the pushing gear (44) meshing with the drive gear (33), a limiting groove (46) being opened on the outer circumferential surface of the pushing screw (42), a limiting block (45) being fixed on the inner circumferential surface of the pushing gear (44), and the limiting block (45) slidingly engaging with the pushing screw (42) vertically through the limiting groove (46); The fixing frame (11) includes a fixing rod (12) fixed to the top surface of the base (1), a fixing plate (13) is fixed to the top end of the fixing rod (12), the top end of the push screw (42) is rotatably connected to the fixing plate (13), and the push plate (15) is sleeved on the outer peripheral surface of the fixing plate (13). The bottom surface of the push plate (15) is provided with a connecting groove (16) for inserting the connecting block (18), and the inner wall of the connecting groove (16) is provided with a snap-fit ​​groove (51). The push plate (15) is slidably mounted with a snap-fit ​​block (5) through the snap-fit ​​groove (51). The side of the connecting block (18) is provided with a positioning groove (53) for inserting the snap-fit ​​block (5). A snap-fit ​​spring (52) is fixed to the side of the snap-fit ​​block (5) away from the connecting block (18). The end of the snap-fit ​​spring (52) away from the snap-fit ​​block (5) is fixedly connected to the inner wall of the snap-fit ​​groove (51). An advancing inclined surface (54) is provided on the bottom surface of the snap-fit ​​block (5). The advancing inclined surface (54) is located on the side of the snap-fit ​​block (5) near the connecting block (18). The top surface of the push plate (15) is provided with an abutment groove (61) that communicates with the snap-fit ​​groove (51). The push plate (15) slides vertically along the abutment block (6) through the abutment groove (61). The top surface of the snap-fit ​​block (5) is provided with a pressing through groove (55) for inserting the abutment block (6). The bottom surface of the abutment block (6) is provided with an abutment slope (62). The inner wall of the pressing through groove (55) away from the connecting block (18) is provided with a pressing slope (56) for abutting against the abutment slope (62).

2. The auxiliary tool for installing an anti-buoyancy anchor bolt according to claim 1, characterized in that: A reset block (63) is fixed to the side of the abutment block (6), and a reset groove (64) is provided on the inner wall of the abutment groove (61). The reset block (63) is slidably connected to the push plate (15) in the vertical direction through the reset groove (64). A reset spring (65) is fixed to the bottom surface of the reset block (63), and the bottom end of the reset spring (65) is fixedly connected to the inner wall of the reset groove (64).

3. The construction method for an auxiliary tool for installing an anti-buoyancy anchor bolt according to any one of claims 1-2, characterized in that: The process includes the following steps: placing the base (1) at the construction location, aligning the drill rod (17) with the location of the anchor rod to be installed, using the drive assembly (3) to drive the control gear (23) to rotate, the control gear (23) to drive the drill rod (17) to rotate, and at the same time using the push assembly (4) to push the push plate (15) to move downwards, the push plate (15) to drive the drill rod (17) to move downwards, and the drill rod (17) to rotate and move downwards; after removing the drill rod (17), cleaning the borehole; inserting the anti-buoyancy anchor rod into the borehole, and then performing pressure grouting.

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