Down-hole grouting construction pile machine

Abstract

The utility model discloses a down-the-hole grouting construction pile machine which comprises a pile machine body and a mast on the pile machine body, a driving mechanism is installed on the mast, the bottom of the driving mechanism is connected with a spiral deslagging structure, a lifting grouting structure and a sleeve structure, and the spiral deslagging structure is arranged in the sleeve structure. The end, opposite to the driving mechanism, of the spiral deslagging structure is connected with a down-the-hole hammer structure, the impact end of the down-the-hole hammer structure extends out of the bottom of the sleeve structure, the lifting grouting structure is arranged on the peripheral side of the sleeve structure, and an expansion rotary excavating structure is further arranged at the bottom of the sleeve structure. The spiral deslagging structure, the down-the-hole hammer structure, the lifting grouting structure and the sleeve structure form the multifunctional down-the-hole grouting construction pile machine integrating down-the-hole, reaming, deslagging and grouting. According to the utility model, the inner wall of a pile hole can be effectively prevented from being touched by repeated drilling and lifting, down-the-hole, reaming, deslagging and grouting integrated construction is realized, the operation is convenient, the construction efficiency is effectively improved, and the construction steps are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cast-in-place pile construction technology, and particularly relates to a down-the-hole grouting construction pile machine. BACKGROUND

[0002] At present, in the field of building construction, the down-the-hole cast-in-place pile construction method is a widely used technology. The traditional construction method includes multiple steps such as using a down-the-hole hammer to drill a hole, using a long screw rod to remove slag, and using a grouting machine to grout. However, in this process, the operation of lowering and raising the drill needs to be repeated in the hole, and the device is easy to touch the inner wall of the pile hole that has been completed during this period, which causes the structure of the hole wall to be damaged or the soil in the hole to fall off, and even the pile hole to collapse, thereby affecting the subsequent pouring effect of the concrete. In order to solve this problem, the current pneumatic down-the-hole hammer increases the measure of casing wall protection when down-the-hole, which is used to prevent the collapse of the hole wall.

[0003] Although this casing wall protection method is effective, it also brings some new problems. The addition of the casing will cause the diameter of the pile hole to become smaller, which undoubtedly increases the difficulty of removing the equipment and soil slag, especially when the operation needs to be performed in a narrow space. At the same time, this method also increases the complexity and cost of the device, which limits the flexible use and construction efficiency of the construction process. SUMMARY

[0004] The utility model provides a down-the-hole grouting construction pile machine to solve the problems raised in the background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A down-the-hole grouting construction pile machine, comprising a pile machine main body and a mast on the pile machine main body, a driving mechanism is installed on the mast, a spiral slag removal structure, a lifting grouting structure and a sleeve structure are connected to the bottom of the driving mechanism, wherein the spiral slag removal structure is arranged inside the sleeve structure, a down-the-hole hammer structure is connected to one end of the spiral slag removal structure opposite to the driving mechanism, and the impact end of the down-the-hole hammer structure extends out of the bottom of the sleeve structure, the lifting grouting structure is arranged on the outer circumferential side of the sleeve structure, an expansion rotary digging structure is further arranged at the bottom of the sleeve structure, and the spiral slag removal structure, the down-the-hole hammer structure, the lifting grouting structure and the sleeve structure form a multifunctional down-the-hole grouting construction pile machine integrating down-the-hole, hole expansion, slag removal and grouting. The pile machine main body and the mast are both existing structural devices of the construction device in the field, and will not be described in detail here.

[0007] The sleeve structure comprises a sleeve, the top of the sleeve is provided with a connecting disc, the connecting disc is fixedly connected with a driving mechanism, the expanding rotary digging structure comprises a plurality of installation grooves arranged on the outer periphery of the lower part of the sleeve, the top and the bottom of the inside of the installation grooves are symmetrically provided with arc-shaped shaft grooves, the cross section of the arc-shaped shaft grooves is in a 3 / 4 circular structure, a semicircular shaft block is movably installed in each of the arc-shaped shaft grooves, and a first tool bit is fixedly arranged in the middle of the semicircular shaft block. By arranging the arc-shaped shaft grooves in the 3 / 4 circular structure, the angle of the semicircular shaft block rotating clockwise and counterclockwise is limited to 90°, and the angle position of the first tool bit extending out of the installation groove is limited.

[0008] When the rotating direction of the rotary motor is the same as the direction of the first tool bit, i.e. when the rotary drilling is performed, the first tool bit extends out of the installation groove to perform the expanding rotary digging.

[0009] When the rotating direction of the rotary motor is opposite to the direction of the first tool bit, i.e. when the grouting is performed, the first tool bit is retracted into the installation groove to prevent the inner wall of the completed rotary drilling hole from being damaged.

[0010] A middle shaft groove is arranged at the center of the arc-shaped shaft groove, a rotating shaft is arranged at the center of the semicircular shaft block, the rotating shaft is movably installed in the middle shaft groove, and a plurality of second tool bits are arranged on the bottom surface of the sleeve. The rotating shaft rotates in the middle shaft groove to assist the rotation of the semicircular shaft block in the arc-shaped shaft groove, so that the semicircular shaft block is prevented from being stuck in the arc-shaped shaft groove.

[0011] The driving mechanism comprises a rotary motor, the output shaft of the rotary motor is fixedly connected with a fixed disc downward, two connecting rods are symmetrically fixed on the bottom of the fixed disc, the connecting rods penetrate through the connecting disc, and the connecting rods and the connecting disc are welded.

[0012] A fixing ring is arranged on the lower part of the connecting rod, a threaded block is arranged on the outer periphery of the sleeve corresponding to the position of the fixing ring, a screw rod is arranged, the screw rod penetrates through the fixing ring and the connecting rod in sequence and is threadedly connected with the threaded block, and the fixed disc is connected with the mast. The connecting rod and the connecting disc are welded, and the screw rod, the fixing ring, the connecting rod and the threaded block are connected, so that the sleeve is fixed, the stability of the sleeve during the rotary drilling is improved, the perpendicularity of the sleeve is maintained, and the angle of the hole is prevented from being deviated due to the angle deviation of the sleeve.

[0013] The screw slag discharging structure comprises a middle shaft rod fixed on the middle of the bottom surface of the fixed disc, a spiral blade is arranged on the outer periphery of the middle shaft rod, an airflow channel is arranged in the middle shaft rod, the lower end of the airflow channel is communicated with the rotary drilling hammer structure, a gas conveying pipe is arranged on the top surface of the middle shaft rod, one end of the gas conveying pipe is communicated with the top of the airflow channel, and the other end of the gas conveying pipe is connected with an air compressor. The high-pressure exhaust gas of the rotary drilling hammer structure is discharged to discharge the soil residue outside the hole through the rotation of the spiral blade, and the air compressor is an existing device, which is not limited herein.

[0014] The hammer structure comprises a hammer body, the top of the hammer body is fixedly connected with the lower end of the central shaft, the upper part in the hammer body is an impactor, and the lower part of the hammer body is a hammer head.

[0015] The lower end of the airflow channel is communicated with the impactor, the hammer head is internally provided with a main flow pipe, the upper end of the main flow pipe is communicated with the impactor, and the bottom of the hammer head is provided with a plurality of exhaust ports, and each exhaust port is communicated with the lower end of the main flow pipe.

[0016] The lifting and grouting structure comprises that the lower end of each connecting rod is fixedly installed with an electric telescopic rod, the telescopic ends of the two electric telescopic rods are downwardly arranged, the telescopic ends of the two electric telescopic rods are fixedly provided with a lifting plate, and a plurality of grouting pipes are installed on the lifting plate, and one end of each grouting pipe opposite to the lifting plate is connected with a grouting machine.

[0017] Compared with the prior art, the utility model have following beneficial effect:

[0018] The driving device is connected with the spiral residue discharging structure, the hammer structure and the sleeve structure, the lowermost hammer structure is used for breaking and constructing hard rock layers, the second cutter head of the sleeve is used for rotary excavating a potential hole in the soil layer, meanwhile, high-pressure waste gas generated by the hammer structure is dispersedly flowed to each exhaust port through the main flow pipe and discharged, the soil residue is discharged out of the hole along the sleeve interior by the rotation of the spiral blade, the first cutter head is arranged on the outer periphery of the lower part of the sleeve, the first cutter head is extended out of the mounting groove to expand and excavate the sleeve when the potential hole is constructed, the diameter of the potential hole is increased, the first cutter head is automatically withdrawn into the mounting groove when the grouting construction is carried out, the inner wall of the completed potential hole is prevented from being damaged, the arc-shaped shaft groove with 3 / 4 circle structure is arranged, the angle of the semicircular shaft block in clockwise and counterclockwise rotation is limited to 90 DEG, and the angle position of the first cutter head extended out of the mounting groove is limited.

[0019] During construction, only single-time drilling is needed, the potential hole, the hole expansion, the residue discharging and the grouting integrated construction are realized, the operation of repeatedly drilling and lifting the drill in the potential hole construction process is avoided, the pile hole structure is prevented from being damaged, and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the utility model;

[0021] Figure 2The utility model discloses a driving device, spiral residue discharge structure, lifting grouting structure, down -the -hole hammer structure and sleeve structure structure schematic diagram.

[0022] Figure 3 The utility model discloses an expansion rotary digging structure transverse structure schematic diagram.

[0023] Figure 4 The utility model discloses a first tool bit extension and retraction state schematic diagram.

[0024] Figure 5 The utility model discloses a semicircle axle block rotation range in arc type axle slot schematic diagram.

[0025] Figure 6 The utility model discloses a hammer main body structure schematic diagram.

[0026] 1, pile machine main body;11, mast;2, driving mechanism;21, rotary motor;22, fixed disc;23, connecting rod;24, fixed ring;25, screw block;26, screw;3, spiral residue discharge structure;31, middle axle;32, spiral blade;33, airflow channel;34, gas conveying pipe;35, air compressor;4, lifting grouting structure;41, electric telescopic rod;42, lifting plate;43, grouting pipe;44, grouting machine;5, sleeve structure;51, sleeve;52, connecting disc;6, down -the -hole hammer structure;61, hammer main body;62, impactor;63, hammer head;64, main flow pipe;65, exhaust port;7, expansion rotary digging structure;71, installation slot position;72, arc type axle slot;73, semicircle axle block;74, first tool bit;75, middle axle slot position;76, rotation axle;77, second tool bit. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the scope of the utility model protection.

[0028] REFERENCE Figures 1-6The utility model provides a kind of auger grouting construction pile machine, including pile machine main body 1 and mast 11 on pile machine main body 1, driving mechanism 2 is installed on the mast 11, the bottom of driving mechanism 2 is connected with spiral deslagging structure 3, lifting grouting structure 4 and sleeve structure 5, wherein spiral deslagging structure 3 is located inside sleeve structure 5, one end of spiral deslagging structure 3 opposite driving mechanism 2 is connected with auger hammer structure 6, and the impact end of auger hammer structure 6 extends the bottom of sleeve structure 5, lifting grouting structure 4 is located at the outer circumferential side of sleeve structure 5, the bottom of sleeve structure 5 is also provided with expansion rotary digging structure 7, spiral deslagging structure 3, auger hammer structure 6, lifting grouting structure 4 and sleeve structure 5 form a kind of set auger, reaming, deslagging, grouting in one's body multifunctional auger grouting construction pile machine.Pile machine main body 1 and mast 11 are both the existing structural device of construction device in the art, and will not be described in detail here.

[0029] Preferably, the sleeve structure 5 includes a sleeve 51, the top of the sleeve 51 is provided with a connecting disc 52, the connecting disc 52 is fixedly connected with the driving mechanism 2, the expansion rotary digging structure 7 includes a plurality of installation grooves 71 arranged around the outer circumferential side of the lower part of the sleeve 51, the top and the bottom of the inside of each installation groove 71 are symmetrically provided with an arc-shaped shaft groove 72, the cross section of the arc-shaped shaft groove 72 is in the shape of 3 / 4 circle, a semicircular shaft block 73 is movably installed in each arc-shaped shaft groove 72, and a first tool bit 74 is fixedly installed in the middle of the semicircular shaft block 73. By setting the arc-shaped shaft groove 72 in the shape of 3 / 4 circle, the angle of the semicircular shaft block 73 rotating clockwise and counterclockwise is limited to 90°, and the angle position of the first tool bit 74 extending out of the installation groove 71 is limited accordingly.

[0030] Preferably, when the rotating direction of the rotary motor 21 is the same as the direction of the first tool bit 74, that is, when the auger work is performed, the first tool bit 74 will extend out of the installation groove 71 to perform expansion rotary digging.

[0031] Preferably, when the rotating direction of the rotary motor 21 is opposite to the direction of the first tool bit 74, that is, when the grouting work is performed, the first tool bit 74 will retract into the installation groove 71 to prevent damaging the inner wall of the completed auger hole.

[0032] Preferably, a central shaft groove 75 is arranged at the center of the arc-shaped shaft groove 72, a rotating shaft 76 is arranged at the center of the semicircular shaft block 73, the rotating shaft 76 is movably installed corresponding to the central shaft groove 75, and a plurality of second tool bits 77 are arranged around the bottom surface of the sleeve 51. The rotating shaft 76 rotates in the central shaft groove 75 to assist the rotation of the semicircular shaft block 73 in the arc-shaped shaft groove 72, preventing the semicircular shaft block 73 from being stuck in the arc-shaped shaft groove 72.

[0033] Preferably, the driving mechanism 2 comprises a rotary motor 21, the output shaft of the rotary motor 21 is fixedly connected with a fixed disc 22, the bottom of the fixed disc 22 is symmetrically fixed with two connecting rods 23, the connecting rods 23 penetrate through the connecting disc 52, and the connecting rods 23 and the connecting disc 52 are weldedly connected.

[0034] Preferably, the lower part of the connecting rod 23 is sleeved with a fixed ring 24, the outer circumferential side of the sleeve 51 is provided with a threaded block 25 at the position corresponding to the fixed ring 24, further comprising a screw rod 26, the screw rod 26 penetrates through the fixed ring 24 and the connecting rod 23 in sequence and is threadedly connected with the threaded block 25, and the fixed disc 22 is in mounting connection with the mast 11. The sleeve 51 is fixed through the welding between the connecting rod 23 and the connecting disc 52 and the connection of the screw rod 26, the fixed ring 24, the connecting rod 23 and the threaded block 25, the stability of the sleeve 51 in the underwater hole is improved, the perpendicularity of the sleeve 51 is maintained, and the angle deviation of the hole caused by the angle deviation of the sleeve 51 is prevented.

[0035] Preferably, the spiral residue discharging structure 3 comprises a middle shaft 31 fixed to the middle part of the bottom surface of the fixed disc 22, the outer circumferential side of the middle shaft 31 is provided with a spiral blade 32, the middle shaft 31 is internally provided with an airflow passage 33, the lower end of the airflow passage 33 is in communication with the underwater hammer structure 6, the top side of the middle shaft 31 is provided with a gas conveying pipe 34, one end of the gas conveying pipe 34 is in communication with the top of the airflow passage 33, and the other end of the gas conveying pipe 34 is connected with an air compressor 35. The high-pressure waste gas discharge of the underwater hammer structure 6 is matched through the rotation of the spiral blade 32, the soil residue is discharged out of the hole, and the air compressor 35 is an existing device, which is not uniquely limited here.

[0036] Preferably, the underwater hammer structure 6 comprises a hammer main body 61, the top of the hammer main body 61 is fixedly connected with the lower end of the middle shaft 31, the upper part in the hammer main body 61 is an impactor 62, and the lower part of the hammer main body 61 is a hammer head 63. The hammer main body 61 is an existing pneumatic underwater hammer, and the impactor 62 and the hammer head 63 therein are both mature technologies, which are not described in detail here. The outer circumferential side of the hammer main body 61 can be provided with a rotating blade for auxiliary residue discharging.

[0037] Preferably, the lower end of the airflow passage 33 is in communication with the impactor 62, the hammer head 63 is internally provided with a main flow pipe 64, the upper end of the main flow pipe 64 is in communication with the impactor 62, the bottom of the hammer head 63 is provided with a plurality of exhaust ports 65, and each exhaust port 65 is in communication with the lower end of the main flow pipe 64.

[0038] Preferably, the lifting grouting structure 4 comprises an electric telescopic rod 41 fixedly installed at the lower end of each connecting rod 23, the telescopic ends of the two electric telescopic rods 41 are arranged downward, and the telescopic ends of the two electric telescopic rods 41 are fixed with a lifting plate 42, a plurality of grouting pipes 43 are installed on the lifting plate 42, and one end of each grouting pipe 43 opposite to the lifting plate 42 is connected with a grouting machine 44.

[0039] A method for constructing a cast-in-place pile based on the pile machine for drilling and grouting as described above, comprising the following steps:

[0040] 1) moving the pile machine body 1 to the construction position where the pile is to be drilled, and starting the pile machine body 1 to move the spiral residue discharge structure 3, the down-the-hole hammer structure 6, the lifting grouting structure 4 and the sleeve structure 5 as a whole vertically downward along the mast 11;

[0041] 2) starting the air compressor 35 and the rotary motor 21, the rotary motor 21 drives the spiral residue discharge structure 3, the down-the-hole hammer structure 6 and the sleeve structure 5 to rotate, the air compressor 35 sends high-pressure gas to the impactor 62 through the airflow channel 33, so that the impact work and impact frequency generated by the operation of the impactor 62 can be directly transmitted to the hammer head 63, and the rotation of the rotary motor 21 is driven to form the pulsating breaking capacity of the rock;

[0042] 3) at the same time, the high-pressure exhaust gas generated by the impactor 62 is dispersedly flowed to each exhaust port 65 through the main flow pipe 64 to be discharged, and then the broken rock particles are blown away, and the impact site of the hammer head 63 is blown and cooled;

[0043] 4) through the rotation of the rotary motor 21, the sleeve 51 is driven to rotate, and then the second cutter head 77 at the bottom of the sleeve 51 excavates the ground, and the rotation direction of the sleeve 51 is the same as the orientation of the first cutter head 74, the first cutter head 74 rotates in the arc-shaped shaft groove 72 with the semicircular shaft block 73, since the cross section of the arc-shaped shaft groove 72 is a 3 / 4 circular structure, the rotation angle of the semicircular shaft block 73 in the arc-shaped shaft groove 72 is at most 90°, and then the first cutter head 74 pops out of the installation groove 71 to expand and excavate the side wall in the hole;

[0044] 5) at the same time, the central shaft 31 drives the spiral blade 32 to rotate, the soil residue generated by the construction of the hammer head 63, the first cutter head 74 and the second cutter head 77 is transported upward along the inside of the sleeve 51, and is discharged outside the hole through the gap between the fixed disc 22 and the connecting disc 52;

[0045] 6) after the completion of the auger hole, the electric telescopic rod 41 is started, the lifting plate 42 moves downward along the outer peripheral side of the sleeve 51, when the lifting plate 42 moves to the lowermost part of the sleeve 51, the grouting machine 44 is started, and the concrete is poured into the bottom of the hole through the grouting pipe 43, at the same time when the grouting machine 44 works, the pile machine body 1 drives the spiral residue discharging structure 3, the auger hammer structure 6, the lifting grouting structure 4 and the sleeve structure 5 to move upwardly and reset as a whole until the auger hole is completely separated from the grouting machine to stop grouting, and the construction is completed.

[0046] The utility model can effectively avoid repeated drilling and touching the inner wall of the pile hole, realize the integrated construction of the auger hole, the hole expansion, the residue discharging and the grouting, is convenient to operate, improves the construction efficiency effectively, and reduces the construction steps.

[0047] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

[0048] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and the skilled person should regard the specification as a whole, and the technical solutions in each embodiment can be combined to form other embodiments that can be understood by the skilled person.

Claims

1. A down-the-hole grouting pile driver, comprising a pile driver body (1) and a mast (11) on the pile driver body (1), characterized in that, A drive mechanism (2) is installed on the mast (11). The bottom of the drive mechanism (2) is connected to a spiral slag discharge structure (3), a lifting grouting structure (4), and a sleeve structure (5). The spiral slag discharge structure (3) is located inside the sleeve structure (5). The end of the spiral slag discharge structure (3) opposite to the drive mechanism (2) is connected to a down-the-hole hammer structure (6). The impact end of the down-the-hole hammer structure (6) extends out of the bottom of the sleeve structure (5). The lifting grouting structure (4) is located on the outer periphery of the sleeve structure (5). The bottom of the sleeve structure (5) is also provided with an expansion rotary drilling structure (7).

2. The down-the-hole grouting pile driver according to claim 1, characterized in that, The sleeve structure (5) includes a sleeve (51), the top of the sleeve (51) is provided with a connecting plate (52), the connecting plate (52) is fixedly connected to the drive mechanism (2), the expansion rotary drilling structure (7) includes a number of installation slots (71) on the lower outer periphery of the sleeve (51), the top and bottom of the installation slots (71) are symmetrically provided with arc-shaped shaft grooves (72), the cross section of the arc-shaped shaft grooves (72) is a 3 / 4 circle structure, and a semi-circular shaft block (73) is movably installed in each arc-shaped shaft groove (72), and a first cutter head (74) is fixed in the middle of the semi-circular shaft block (73).

3. The down-the-hole grouting pile machine according to claim 2, characterized in that, The arc-shaped shaft groove (72) has a central shaft groove (75) at its center, and the semi-circular shaft block (73) has a rotating shaft (76) at its center. The rotating shaft (76) is movably installed corresponding to the central shaft groove (75), and the bottom surface of the sleeve (51) is provided with several second cutter heads (77).

4. The down-the-hole grouting pile driver according to claim 3, characterized in that, The drive mechanism (2) includes a rotary motor (21), the output shaft of the rotary motor (21) is fixedly connected to a fixed disk (22) facing downwards, and two connecting rods (23) are symmetrically fixed at the bottom of the fixed disk (22) and the connecting rods (23) pass through the connecting disk (52), and the connecting rods (23) are welded to the connecting disk (52).

5. The down-the-hole grouting pile machine according to claim 4, characterized in that, The lower part of the connecting rod (23) is fitted with a fixing ring (24), and the outer periphery of the sleeve (51) is provided with a threaded block (25) corresponding to the fixing ring (24). It also includes a screw (26), which passes through the fixing ring (24) and the connecting rod (23) in sequence and is threadedly connected to the threaded block (25). The fixing plate (22) is installed and connected to the mast (11).

6. The down-the-hole grouting pile driver according to claim 1, characterized in that, The spiral slag discharge structure (3) includes a central shaft (31) fixed to the middle of the bottom surface of the fixed plate (22). Spiral blades (32) are arranged around the outer periphery of the central shaft (31). An airflow channel (33) is provided inside the central shaft (31). The lower end of the airflow channel (33) is connected to the downhole hammer structure (6). An air supply pipe (34) is provided on the top side of the central shaft (31). One end of the air supply pipe (34) is connected to the top of the airflow channel (33), and the other end of the air supply pipe (34) is connected to an air compressor (35).

7. The down-the-hole grouting pile driver according to claim 6, characterized in that, The downhole hammer structure (6) includes a hammer body (61), the top of which is fixedly connected to the lower end of the central shaft (31), the upper part of which is an impactor (62), and the lower part of which is a hammer head (63).

8. The down-the-hole grouting pile driver according to claim 7, characterized in that, The lower end of the airflow channel (33) is connected to the impactor (62). The hammer head (63) is provided with a main flow pipe (64). The upper end of the main flow pipe (64) is connected to the impactor (62). The bottom of the hammer head (63) is provided with a number of exhaust ports (65). Each exhaust port (65) is connected to the lower end of the main flow pipe (64).

9. The down-the-hole grouting pile driver according to claim 4, characterized in that, The lifting grouting structure (4) includes an electric telescopic rod (41) fixedly installed at the lower end of each of the connecting rods (23). The telescopic ends of the two electric telescopic rods (41) are set downwards, and a lifting plate (42) is fixed at the telescopic ends of the two electric telescopic rods (41). A plurality of grouting pipes (43) are installed on the lifting plate (42), and one end of each grouting pipe (43) opposite to the lifting plate (42) is connected to a grouting machine (44).

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