Combined pile extractor

Abstract

The application discloses a combined pile pulling machine, which comprises a rack, a power source assembly, a screw lifting assembly, a clamping assembly, a combination mechanism, a controller and a battery; the power source assembly is installed on the top of the rack and connected with the screw lifting assembly to provide lifting power for the screw lifting assembly, and the power source assembly comprises a motor; the screw lifting assembly is movably installed on the rack; the clamping assembly is installed on the screw lifting assembly; the combination mechanism is installed on the screw lifting assembly and the rack and used for connecting adjacent racks; and the controller is installed on the rack. Through the combination mechanism, the adjacent pile pulling machines can be connected and linkage control can be realized, so that multiple pile pulling machines can simultaneously perform pile pulling operation on a pile body, large or deeply buried pile bodies can be pulled out, and the pile pulling effect and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pile puller, in particular to a combined pile puller. BACKGROUND

[0002] The pile puller is an important construction machinery, which uses vibration, static force or hammering to pull out the pile from the ground.

[0003] In the garden, it is generally more inclined to use a small pile puller. Because the space in the garden is usually narrow, and the pile to be processed is usually small or medium in size. The small pile puller has the advantages of small size, flexible operation and low cost in the garden. However, when using the small pile puller, the following problems are encountered: when dealing with particularly large or deeply buried piles, due to the limitation of size and power system, the small pile puller may not be able to pull out the large or deeply buried piles, affecting the pile pulling effect, and even manual excavation is required before pulling out the piles, which seriously affects the pile pulling efficiency.

[0004] Therefore, a small pile puller capable of being combined with multiple pile pullers to pull out large or deeply buried piles is provided. SUMMARY

[0005] The purpose of the present application is to provide a combined pile puller to solve the problem that some large or deeply buried piles cannot be pulled out by a small pile puller, affecting the pile pulling effect and efficiency.

[0006] In order to achieve the above purpose, the present application provides a combined pile puller, which comprises a rack, a power source assembly, a lead screw lifting assembly, a clamping assembly, a combination mechanism, a controller and a battery. The power source assembly is installed on the top of the rack and connected with the lead screw lifting assembly to provide lifting power for the lead screw lifting assembly. The power source assembly comprises a motor. The lead screw lifting assembly is movably installed on the rack. The clamping assembly is installed on the lead screw lifting assembly. The combination mechanism is installed on the lead screw lifting assembly and the rack to connect adjacent racks. The controller is installed on the rack. Multiple pile pullers are connected end to end through corresponding combination mechanisms, and then the corresponding motors are started through the respective controllers to drive the corresponding lead screw lifting assemblies to work, so that the clamping assembly moves up and down to pull out the pile.

[0007] Optionally, the combination mechanism comprises a pre-connection assembly installed on the rack and a linkage assembly installed on the lead screw lifting assembly and penetrating the rack. The linkage assembly is connected with the pre-connection assembly.

[0008] Optionally, before the pile is pulled out, a plurality of pile pulling machines are placed around the pile body, then adjacent pile pulling machines are connected through the pre-connection assembly, after the connection is completed, one of the pile pulling machines is started, and the pile pulling machine drives other pile pulling machines to work synchronously through the linkage assembly.

[0009] Optionally, the pre-connection assembly comprises two connecting ears fixedly installed on two parallel side walls of the rack, a rotating groove arranged on the connecting ear, a rotating connecting plate movably installed on the rotating groove through a bolt, a connecting hole arranged on the other end of the rotating connecting plate, and a locking structure installed on the other connecting ear, which is used for cooperating with the connecting hole to lock and limit the rotating connecting plate; the rotating connecting plate is connected with the linkage assembly.

[0010] Optionally, the locking structure comprises a through hole arranged on the top of the connecting ear, a hollow tube installed on the top of the connecting ear and communicating with the through hole, a locking column arranged through the hollow tube, a control plate installed on the top of the locking column, a limiting plate installed on the locking column and located in the hollow tube, a spring sleeved on the locking column and located on the hollow tube, and a chamfer arranged on the end of the locking column away from the control plate; the end of the rotating connecting plate provided with the connecting hole is also provided with a chamfer; a connecting column is installed on the bottom of the rotating connecting plate, and the connecting column is movably connected with the linkage assembly.

[0011] Optionally, the linkage assembly comprises a guide column fixedly installed on the rack, a damping linkage structure installed on the guide column and penetrating through one side wall of the rack, and a linkage receiving assembly installed on the other parallel side wall of the rack, and the linkage receiving assembly is connected with the controller; the lead screw lifting assembly and the connecting column are connected with the damping linkage structure.

[0012] Optionally, the lead screw lifting assembly in one of the combined pile pulling machines drives the damping linkage structure to move, and the linkage receiving assembly in the adjacent other combined pile pulling machine is instructed to issue an instruction, the linkage receiving assembly sends a signal to the controller, and the controller controls the corresponding motor to work.

[0013] Optionally, the damping linkage structure comprises a damping slide rod movably installed on the guide column, a first damping slide block and a second damping slide block slidably installed on the damping slide rod, a linkage control plate movably installed on the second damping slide block and penetrating through the rack, and two protrusions installed on the top and the bottom of the linkage control plate, respectively.

[0014] Optionally, the length of the damping slide rod is less than the length of the guide column; the first damping slide block is located on the top of the second damping slide block, and one end of the first damping slide block is connected with the screw lifting assembly; the first damping slide block can drive the damping slide rod and the second damping slide block to ascend through the friction force between the first damping slide block and the damping slide rod; the second damping slide block stays at any position on the damping slide rod through the friction force between the second damping slide block and the damping slide rod.

[0015] Optionally, the linkage control plate is movably connected with the connecting column, and the rotation axis of the linkage control plate and the second damping slide block is collinear with the rotation axis of the connecting lug and the rotation connecting plate.

[0016] Optionally, the linkage receiving assembly comprises a linkage receiving block mounted on the side wall of the rack, a groove corresponding to the linkage control plate arranged on the linkage receiving block, two placement grooves arranged at the top and the bottom of the groove respectively, and a control switch mounted in the placement groove and connected with the controller.

[0017] Optionally, the contact surface of the control switch is flush with the groove wall of the groove; the thickness of the linkage control plate is less than the groove width of the groove, and the thickness of the linkage control plate and the thickness of the two protrusions are equal to the groove height of the groove.

[0018] Optionally, when the motor in the power source assembly drives the screw lifting assembly to work, the screw lifting assembly drives the first damping slide block connected thereto to move, so that the linkage control plate moves.

[0019] Optionally, the rack comprises a bottom plate, a mounting block arranged on the bottom plate, a support column mounted on the mounting block, a first movable connection structure and a second movable connection structure respectively mounted on the bottom and the top of the support column; the support column is provided with a through groove corresponding to the second damping slide block, and the height of the through groove is greater than the thickness of the second damping slide block; the screw lifting assembly is movably mounted on the first movable connection structure and the second movable connection structure; the two ends of the guide column are connected with the first movable connection structure and the second movable connection structure.

[0020] Optionally, the mounting block is arranged in a shape of a Chinese character 'fang', the support column is provided with a through groove corresponding to the screw lifting assembly, and the support column is further provided with a movable groove in communication with the through groove.

[0021] Optionally, the first movable connection structure comprises a first mounting seat located in the through groove, a first countersunk hole arranged in the first mounting seat, and a first bearing mounted in the first countersunk hole and connected with the screw lifting assembly.

[0022] Optionally, the second movable connecting structure comprises a second mounting base mounted on the top of the support column, a connecting block integrally formed with the second mounting base and located in the through groove, a second counterbore provided on the second mounting base and the connecting block, and a second bearing mounted in the second counterbore and connected with the lead screw lifting assembly; and the power source assembly is mounted on the second mounting base.

[0023] Optionally, the lead screw lifting assembly comprises a lead screw movably connected with the first bearing and the second bearing at two ends, a lead screw nut mounted on the lead screw, and a lifting mounting block provided on the lead screw nut and located in the movable groove.

[0024] Optionally, the first mounting base and the second mounting base are each provided with a mounting groove in which an elastic baffle ring is mounted; and the lifting mounting block is connected with the first damping sliding block.

[0025] Optionally, the lifting mounting block is provided with a fixing hole and a waist-shaped hole, and the clamping assembly is fixedly mounted on the lifting mounting block through the fixing hole and the waist-shaped hole, or the clamping assembly is movably mounted on the lifting mounting block through the waist-shaped hole.

[0026] Optionally, the power source assembly further comprises a mounting vertical plate mounted on the second mounting base, the motor is mounted on the mounting vertical plate, and the motor is connected with the lead screw lifting assembly through a shaft coupling; and a handle is mounted on the outer wall of the support column.

[0027] Optionally, the clamping assembly fixedly mounted through the fixing hole and the waist-shaped hole comprises a clamping connecting plate, two clamping mounting plates provided on one side surface of the clamping connecting plate, a clamping installation groove one formed between the two clamping mounting plates, and a clamping piece mounted on the other side surface of the clamping connecting plate, the clamping piece can be inserted into a pile body, and then the clamping piece is lifted to pull the pile body out of the ground, and the clamping installation groove one is matched with the lifting mounting block.

[0028] Optionally, the clamping piece is composed of a pile pulling column.

[0029] Optionally, the clamping piece comprises a pile pulling block mounted on the clamping connecting plate, and a spacing groove provided at the middle position of the pile pulling block.

[0030] Optionally, the pile pulling block is provided with a plug hole in communication with the spacing groove, a support screw movably mounted in the plug hole, and a locking nut mounted on the support screw.

[0031] Optionally, the support screw is provided with a hook.

[0032] Optionally, the clamping assembly movably installed through the waist-shaped hole comprises a clamping block, a clamping installation groove two arranged on the clamping block, and a clamping groove arranged on the clamping block and used for clamping the pile body, wherein the clamping groove is perpendicular to the clamping installation groove two in terms of groove direction.

[0033] Optionally, the clamping groove is provided with an anti-skid strip.

[0034] Compared with the prior art, the combined pile pulling machine has the following beneficial effects:

[0035] The combined pile pulling machine can connect adjacent pile pulling machines through the combined mechanism and can be controlled in linkage, so that multiple pile pulling machines can simultaneously perform pile pulling operation on a pile body, the large or deeply buried pile body can be pulled out, the pile pulling effect is improved, and the pile pulling efficiency of the large or deeply buried pile body is higher than that of using a large pile pulling machine or manual excavation. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a schematic view of the overall structure of the combined pile pulling machine.

[0037] Figure 2 is another overall schematic view of the combined pile pulling machine.

[0038] Figure 3 is a schematic view of the bottom plate and the first movable connection structure.

[0039] Figure 4 is a connection schematic view of the first movable connection structure, the second movable connection structure and the lead screw.

[0040] Figure 5 is a schematic view of the second movable connection structure.

[0041] Figure 6 is a schematic view of the lead screw lifting assembly.

[0042] Figure 7 is a structural schematic view of the support column.

[0043] Figure 8 is a structural schematic view of the combined mechanism.

[0044] Figure 9 is a partial enlarged view of A in the combined pile pulling machine. Figure 8

[0045] Figure 10 is a partial enlarged view of B in the combined pile pulling machine. Figure 8

[0046] Figure 11 is a partial enlarged view of C in the combined pile pulling machine. Figure 8 ​​Close-up view at C.

[0047] Figure 12 is a sectional view of the linkage control plate of the present invention Figure 8 Close-up view at D.

[0048] Figure 13 is a sectional view of the linkage control plate of the present invention

[0049] Figure 14 is a sectional view of the linkage control plate of the present invention

[0050] Figure 15 is a sectional view of the linkage control plate of the present invention

[0051] Figure 16 is a sectional view of the linkage control plate of the present invention

[0052] Figure 17 is a sectional view of the linkage control plate of the present invention

[0053] Figure 18 is a sectional view of the linkage control plate of the present invention

[0054] Figure 19 is a sectional view of the linkage control plate of the present invention

[0055] Figure 20 is a sectional view of the linkage control plate of the present invention

[0056] Figure 21 is a sectional view of the linkage control plate of the present invention

[0057] Figure 22 is a sectional view of the linkage control plate of the present invention

[0058] Figure 23 is a sectional view of the linkage control plate of the present invention

[0059] Figure 24 is a sectional view of the linkage control plate of the present invention

[0060] Figure 25 is a sectional view of the linkage control plate of the present invention

[0061] Figure 26 is a sectional view of the linkage control plate of the present invention

[0062] Identified in the figure: 1, rack; 11, bottom plate; 12, mounting block; 13, support column; 130, through slot; 131, through slot; 132, movable slot; 133, handle; 14, first movable connection structure; 141, first mounting seat; 142, first countersunk hole; 143, first bearing; 15, second movable connection structure; 151, second mounting seat; 152, connecting block; 153, second countersunk hole; 154, second bearing; 155, mounting slot; 156, elastic check ring; 2, power source assembly; 21, motor; 22, mounting stand; 3, screw lifting assembly; 31, lead screw; 32, lead screw nut; 33, lifting mounting block; 34, fixing hole; 35, waist-shaped hole; 4, clamping assembly; 401, clamping block; 402, clamping installation slot two; 403, clamping slot; 404, anti-skid strip; 41, clamping connecting plate; 42, clamping mounting plate; 43, clamping installation slot one; 44, clamping piece; 441, pile pulling block; 442, spacing slot; 443, jack; 444, support screw; 445, locking nut; 446, hook; 5, combined mechanism; 51, pre-connection assembly; 510, connecting lug; 511, rotation slot; 512, rotation connecting plate; 5121, connecting column; 5122, rotation main plate; 5123, expansion slot one; 5124, connecting sub-plate; 5125, limiting block one; 5126, sliding groove one; 513, connecting hole; 514, through hole; 515, hollow tube; 516, locking column; 517, control plate; 518, limiting plate; 519, spring; 52, linkage assembly; 520, guide column; 521, damping linkage structure; 5210, damping sliding rod; 5211, first damping sliding block; 5212, second damping sliding block; 5213, linkage control plate; 5213a, linkage main plate; 5213b, expansion slot two; 5213c, limiting block two; 5213d, control sub-plate; 5213e, sliding groove two; 5214, protruding block; 522, linkage receiving assembly; 5221, linkage receiving block; 5222, groove; 5223, placement slot; 5224, control switch; 6, controller; 7, battery. DETAILED DESCRIPTION

[0063] The application will be described in greater detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without the specific details given here. In other instances, well-known methods have not been described in detail in order to avoid obscuring the application. Therefore, the specific details set forth here are merely exemplary. The application is not limited to the detailed description and the accompanying drawings.

[0064] A combined pile pulling machine according to the present application can be applied to the situation of pulling out piles in gardens, and can also be applied to other similar application scenarios. A combined pile pulling machine will be described in detail below.

[0065] Example 1

[0066] Referring to the drawings Figure 1 — Figure 16 As shown in the drawings, the structure of the preferred embodiment of the combined pile pulling machine is shown. The combined pile pulling machine comprises a rack 1, a power source assembly 2 mounted on the top of the rack 1, a screw lifting assembly 3 movably mounted on the rack 1, a clamping assembly 4 mounted on the screw lifting assembly 3, a combination mechanism 5 mounted on the screw lifting assembly 3 and the rack 1, a controller 6 mounted on the rack 1, and a battery 7 mounted on the rack 1 for providing power to the controller 6. The power source assembly 2 is connected to the screw lifting assembly 3, and the combination mechanism 5 is used to connect adjacent racks 1. Multiple pile pulling machines are connected end to end through the corresponding combination mechanism 5, and then the corresponding motors 21 are started through the respective controllers 6, driving the corresponding screw lifting assemblies 3 to work, so that the clamping assemblies 4 of the multiple pile pulling machines move up and down to pull out the pile body.

[0067] The rack 1 provides installation conditions, the power source assembly 2 provides power to make the screw lifting assembly 3 work, the clamping assembly 4 is used to clamp the pile body and move the clamping assembly 4 through the screw lifting assembly 3 to pull out the pile body, the clamping assembly 4 is used to clamp the pile body, the combination mechanism 5 can connect and link adjacent pile pulling machines, so that the operator only needs to operate one pile pulling machine to synchronize the operation of all connected pile pulling machines, so that multiple pile pulling machines can simultaneously pull out a pile body, improving the pile pulling effect and efficiency. The controller 6 controls the operation of the pile pulling machine, reducing the time difference between the start and stop of multiple pile pulling machines.

[0068] Referring to the drawings Figure 1 — Figure 16 As shown in the drawings, in the present application, the combination mechanism 5 comprises a pre-connection assembly 51 mounted on the rack 1 and a linkage assembly 52 disposed through the rack 1 mounted on the screw lifting assembly 3. The linkage assembly 52 is connected to the pre-connection assembly 51.

[0069] The pre-connection assembly 51 can pre-connect adjacent pile pulling machines, move the linkage assembly 52, and move the linkage assembly 52 to a designated position to prepare for subsequent linkage control, and ensure that adjacent pile pulling machines are relatively limited. The linkage assembly 52 allows multiple pile pulling machines to start and stop simultaneously when pulling out the same pile body, ensuring that multiple pile pulling machines operate synchronously to ensure that the force is evenly distributed on the pile body, and that large or deeply buried pile bodies can be pulled out. It should be noted that before the multiple pile pulling machines are linked to pull out the pile, the multiple pile pulling machines need to be placed in the corresponding positions around the pile body.

[0070] Referring to the drawings Figure 8 Figure 16 As shown in the drawings, in the present application, the pre-connection assembly 51 comprises two connecting ears 510 fixedly installed on two parallel side walls of the rack 1 respectively, a rotating groove 511 arranged on the connecting ear 510, a rotating connecting plate 512 movably installed on the rotating groove 511 through a bolt at one end, a connecting hole 513 arranged on the other end of the rotating connecting plate 512, a locking structure installed on the other connecting ear 510, which is used for cooperating with the connecting hole 513 to lock and limit the rotating connecting plate 512; and the rotating connecting plate 512 is connected with the linkage assembly 52.

[0071] In the present application, the connecting ear 510 is arranged to cooperate with the rotating groove 511, so that the rotating connecting plate 512 can rotate; and the locking structure and the connecting hole 513 are arranged to lock and limit the other end of the rotating connecting plate 512, thereby ensuring that the adjacent pile pullers can be connected.

[0072] Referring to the drawings Figure 8 Figure 11 and Figure 15 As shown in the drawings, in the present application, the locking structure comprises a through hole 514 arranged on the top of the connecting ear 510, a hollow tube 515 installed on the top of the connecting ear 510 and communicating with the through hole 514, a locking column 516 arranged through the hollow tube 515, a control plate 517 installed on the top of the locking column 516, a limiting plate 518 installed on the locking column 516 and located in the hollow tube 515, a spring 519 sleeved on the locking column 516 and located on the hollow tube 515, and a chamfer arranged on the end of the locking column 516 away from the control plate 517; a chamfer is also arranged on the end of the rotating connecting plate 512 provided with the connecting hole 513; and a connecting column 5121 is installed on the bottom of the rotating connecting plate 512, which is movably connected with the linkage assembly 52.

[0073] ​​The present application is through the setting of the through hole 514, so that the locking column 516 can enter the corresponding rotating groove 511, cooperate with the connecting hole 513 on the rotating connecting plate 512 in the rotating groove 511, and lock the rotating connecting plate 512; through the setting of the hollow pipe 515, the locking column 516, the spring 519 and the limiting plate 518 are provided with mounting positions; through the setting of the control plate 517, the locking column 516 can be driven to rise, the locking column 516 is separated from the connecting hole 513, the rotating connecting plate 512 is separated from the connecting lug 510 on another pile pulling machine, so that the two pile pulling machines can be separated and subsequent work can be carried out; through the setting of the limiting plate 518, the spring 519 and the locking column 516 can interact, that is, when the staff drives the locking column 516 to move away from the connecting lug 510 by the control plate 517, the limiting plate 518 can compress the spring 519, and ensure that the spring 519 can control the locking column 516 to reset and insert into the rotating groove 511; through the setting of the chamfer on the locking column 516 and the rotating connecting plate 512, when the rotating connecting plate 512 cooperates with the locking column 516, the locking column 516 does not need to be controlled, when the rotating connecting plate 512 contacts the locking column 516, the locking column 516 will move along the chamfer surface, so that the rotating connecting plate 512 is smoothly inserted into the rotating groove 511, and the staff can conveniently connect the adjacent pile pulling machines; through the setting of the connecting column 5121, when the rotating connecting plate 512 rotates, the linkage assembly 52 can be driven to move, so that the linkage assembly 52 rotates to the specified position.

[0074] Referring to the drawings Figure 8 — Figure 12 As shown in the drawings, in the present application, the linkage assembly 52 includes a guide column 520 fixedly installed on the rack 1, a damping linkage structure 521 installed on the guide column 520 and penetrating through one side wall of the rack 1, and a linkage receiving assembly 522 installed on the other parallel side wall of the rack 1, the linkage receiving assembly 522 being connected with the controller 6, and the guide column being square.

[0075] The present application provides the damping linkage structure 521 with a mounting position through the setting of the guide column 520; through the setting of the linkage receiving assembly 522, the lifting movement information of the damping linkage structure 521 is received and transmitted to the controller 6, and a discrimination signal is provided for the control signal of the controller 6.

[0076] It needs to be particularly pointed out that the connecting column 5121 and the lead screw lifting assembly 3 are all connected with the damping linkage structure 521, so that the lead screw lifting assembly 3 can drive the damping linkage structure 521 to move up and down when moving, and the connecting column 5121 can drive the damping linkage structure 521 to move rotationally, and when the damping linkage structure 521 moves up and down, the damping linkage structure 521 is movably connected with the connecting column 5121 and will not interfere. Specifically, the pre-connection assembly 51 is connected, and when the pre-connection assembly 51 is connected, the pre-connection assembly 51 drives the damping linkage structure 521 to rotate through the connecting column 5121, and after the pre-connection assembly 51 is connected, the lead screw lifting assembly 3 can drive the damping linkage structure 521 to move, and in the process of moving, the damping linkage structure 521 will be extruded with the adjacent next linkage receiving assembly 522, so that the next pile pulling machine receives the signal and transmits the signal to the controller 6 of the pile pulling machine, and the controller 6 of the pile pulling machine starts to control the motor 21 corresponding to the wire to start work.

[0077] Referring to the drawings Figure 8 — Figure 15 As shown in the drawings, in the damping linkage structure 521 of the present application, the damping linkage structure 521 comprises a damping slide rod 5210 movably mounted on the guide column 520, a first damping slide block 5211 and a second damping slide block 5212 slidably mounted on the damping slide rod 5210, a linkage control plate 5213 movably mounted on the second damping slide block 5212 and penetrating through the rack 1, and two protrusions 5214 respectively mounted on the top and bottom of the linkage control plate 5213.

[0078] The damping slide rod 5210 is provided to provide mounting positions for the first damping slide block 5211 and the second damping slide block 5212 and guide the movement of the first damping slide block 5211 and the second damping slide block 5212, and the linkage control plate 5213 and the protrusion 5214 are provided to transmit the lifting information of the lead screw lifting assembly 3 to the next adjacent pile pulling machine.

[0079] The length of the damping slide rod 5210 is less than the length of the guide column 520, and the absolute value of the difference between the lengths of the damping slide rod 5210 and the guide column 520 is less than 0.5 cm, so that the damping slide rod 5210 can be lifted along the guide column 520, so that the second damping slide block 5212 can be lifted, the linkage control plate 5213 and the protrusion 5214 can be lifted, and the cross section of the damping slide rod 5210 is annular, so as to reduce the friction between the damping slide rod 5210 and the guide column 520 and increase the friction between the first damping slide block 5211 and the second damping slide block 5212. It should be particularly noted that the absolute value of the length difference of 0.5 cm can be adjusted correspondingly, and the length difference is related to the lead screw lifting assembly 3, that is, the rotation speed of the lead screw 31 and the distance moved by the lead screw nut 32 per rotation, in short, the product of the rotation speed of the lead screw 31 and the distance moved by the lead screw nut 32 per rotation is the distance moved by the lead screw nut per minute, and the absolute value difference can be adjusted according to the distance moved by the lead screw nut 32 per minute to ensure signal transmission within the allowable error time. Of course, the shorter the error time, the better the linkage of the multi-pile pulling machine.

[0080] Referring to the drawings Figure 8 Figure 15 In the present application, the first damping slide block 5211 is located on the top of the second damping slide block 5212, and one end of the first damping slide block 5211 is connected with the lead screw lifting assembly 3; the first damping slide block 5211 can drive the damping slide rod 5210 and the second damping slide block 5212 to rise through the friction between the first damping slide block 5211 and the damping slide rod 5210; the second damping slide block 5212 stays at any position on the damping slide rod 5210 through the friction between the second damping slide block 5212 and the damping slide rod 5210; and the linkage control plate 5213 is movably connected with the connecting column 5121.

[0081] The present application limits the positions of the first damping slide block 5211 and the second damping slide block 5212, so as to ensure that the lifting movement of the first damping slide block 5211 will not be limited by the second damping slide block 5212, and to ensure that the lead screw lifting assembly 3 will not interfere during operation.

[0082] Referring to the drawings Figure 8 Figure 15 In the present application, the linkage receiving assembly 522 includes a linkage receiving block 5221 mounted on the side wall of the rack 1, a groove 5222 corresponding to the linkage control plate 5213 arranged on the linkage receiving block 5221, two placement grooves 5223 arranged at the top and bottom of the groove 5222 respectively, and a control switch 5224 mounted in the placement groove 5223, which is connected with the controller 6.

[0083] ​​The linkage control plate 5213 is matched by avoiding, the convex block 5214 can be corresponded with the control switch 5224, the lifting movement of the screw lifting assembly 3 in the last pile puller is received by the control switch 5224, and the signal is transmitted to the controller 6.

[0084] Referring to the drawings Figure 8 — Figure 15 As shown in the drawings, the contact surface of the control switch 5224 is flush with the groove wall of the recess 5222, the thickness of the linkage control plate 5213 is less than the groove width of the recess 5222, and the thickness of the linkage control plate 5213 is equal to the sum of the thicknesses of the two convex blocks 5214, the motor 21 in the power source assembly 2 drives the screw lifting assembly 3 to work, the screw lifting assembly 3 drives the first damping sliding block 5211 connected thereto to move, and the linkage control plate 5213 moves.

[0085] The control switch 5224 is pressed by the convex block 5214 to move, the controller 6 receives the signal, the reaction time is reduced, and the linkage of the pile puller is improved, the groove width of the recess 5222 is limited, the convex block 5214 can enter the recess 5222, and the groove width direction of the recess 5222 is the height direction of the two convex blocks 5214.

[0086] Referring to the drawings Figure 1 — Figure 5 As shown in the drawings, the rack 1 comprises a bottom plate 11, a mounting block 12 arranged on the bottom plate 11, a support column 13 mounted on the mounting block 12, a first movable connection structure 14 and a second movable connection structure 15 mounted on the bottom and top of the support column 13 respectively, and a through groove 130 corresponding to the second damping sliding block 5212 is arranged on the support column 13, the height of the through groove 130 is greater than the thickness of the second damping sliding block 5212, the screw lifting assembly 3 is movably mounted on the first movable connection structure 14 and the second movable connection structure 15, and the two ends of the guide column 520 are connected with the first movable connection structure 14 and the second movable connection structure 15.

[0087] The mounting block 12 is arranged to provide a mounting position for the support column 13, the first movable connection structure 14 and the second movable connection structure 15 are arranged to provide mounting positions for the guide column 520 and the screw lifting assembly 3, and the through groove 130 is arranged to limit the movement range of the second damping sliding block 5212, so that the second damping sliding block 5212 is prevented from moving out of position and causing the control switch 5224 to be pressed and damaged.

[0088] Referring to the drawingsFigure 1 Figure 7 As shown in the figure, in the application, the mounting block 12 is arranged in a shape of a Chinese character, the support column 13 is provided with a through slot 131 corresponding to the screw lifting assembly 3, and the support column 13 is further provided with a movable slot 132 in communication with the through slot 131.

[0089] The first movable connection structure 14 and the second movable connection structure 15 can be respectively installed on the two ends of the support column 13 and connected through the screw lifting assembly 3 by the arrangement of the through slot 131, and the movable slot 132 is arranged to provide clearance and limit for the lifting mounting block 33, so that the lifting mounting block 33 can only move up and down along the movable slot 132.

[0090] Referring to the accompanying Figure 1 Figure 3 As shown in the figure, in the application, the first movable connection structure 14 includes a first mounting seat 141 located in the through slot 131, a first countersunk hole 142 arranged in the first mounting seat 141, and a first bearing 143 installed in the first countersunk hole 142 and connected with the screw lifting assembly 3.

[0091] The first bearing 143 is provided with a mounting position by the arrangement of the first countersunk hole 142, and one end of the screw 31 in the screw lifting assembly 3 is movably supported by the arrangement of the first bearing 143.

[0092] Referring to the accompanying Figure 4 Figure 5 As shown in the figure, in the application, the second movable connection structure 15 includes a second mounting seat 151 installed on the top of the support column 13, a connecting block 152 integrally formed with the second mounting seat 151 and located in the through slot 131, a second countersunk hole 153 arranged on the second mounting seat 151 and the connecting block 152, a second bearing 154 installed in the second countersunk hole 153 and connected with the screw lifting assembly 3, and a power source assembly 2 installed on the second mounting seat 151.

[0093] The power source assembly 2 is provided with a mounting position by the arrangement of the second mounting seat 151, the support column 13 is connected by the arrangement of the connecting block 152, the second bearing 154 is provided with a mounting position by the arrangement of the second countersunk hole 153, and the other end of the screw 31 in the screw lifting assembly 3 is movably limited by the arrangement of the second bearing 154.

[0094] It should be particularly pointed out that the first mounting seat 141 and the second mounting seat 151 are both provided with an installation slot 155, and an elastic retaining ring 156 is installed in the installation slot 155, which can effectively prevent the bearing from separating from the countersunk hole, effectively limit the bearing, and a handle 133 is installed on the outer wall of the support column 13. ​​​

[0095] Participate attached Figure 1 - Figure 6 As shown in the drawings, in the present application, the screw lifting assembly 3 comprises a screw rod 31 movably connected with the first bearing 143 and the second bearing 154 at both ends, a screw nut 32 installed on the screw rod 31, and a lifting mounting block 33 provided on the screw nut 32 and located in the movable groove 132, wherein the lifting mounting block 33 is connected with the first damping sliding block 5211.

[0096] The present application provides the installation position for the clamping assembly 4 through the setting of the screw rod 31 and the screw nut 32, so that the clamping assembly 4 can move up and down with the screw nut 32.

[0097] Participate attached Figure 1 , Figure 6 and Figure 16 As shown in the drawings, in the present application, the clamping assembly 4 is installed on the lifting mounting block 33, and the lifting mounting block 33 is provided with a fixing hole 34 and a waist-shaped hole 35, and the clamping assembly 4 is fixedly installed on the lifting mounting block 33 through the fixing hole 34 and the waist-shaped hole 35.

[0098] The present application provides the installation adjustment for the clamping assembly 4 through the setting of the fixing hole 34 and the waist-shaped hole 35.

[0099] Participate attached Figure 16 As shown in the drawings, in the present application, the clamping assembly 4 comprises a clamping mounting plate 42 fixedly installed on the lifting mounting block 33, a clamping connecting plate 41 for connecting two clamping mounting plates 42, a clamping mounting groove 43 formed between the two clamping mounting plates 42, and a clamping piece 44 installed on the side surface of the clamping connecting plate 41.

[0100] The present application provides the installation adjustment for the clamping assembly 4 through the setting of the fixing hole 34 and the waist-shaped hole 35.

[0101] Participate attached Figure 16 As shown in the drawings, in the present application, the clamping piece 44 is composed of a pile pulling column arranged in a column shape, and the pile pulling column can be one or more.

[0102] Participate attached Figure 1 - Figure 16As shown, when there is a large or deep pile body needs to be pulled out, multiple pile pullers need to be combined to pull out the pile, the specific operation is as follows:

[0103] First, connect the adjacent pile pullers through the pre-connection assembly 51 until all the pile pullers are connected in a shape, the pre-connection assembly 51 will drive the linkage assembly 52 to move through the connecting column 5121 when connecting, then carry the pile puller to the designated position, and insert the clamping piece 44 on the pile puller into the hole of the pile body, then start one of the pile pullers, and the adjacent pile pullers are started at the same time through the linkage assembly 52 to pull out the pile.

[0104] The specific operation of connecting adjacent pile pullers by the pre-connection assembly 51 is as follows:

[0105] Rotate the rotating connecting plate 512 on the first pile puller around the connecting part of the connecting lug 510, so that the rotating connecting plate 512 rotates towards the connecting lug 510 with the locking structure on the adjacent second pile puller, one end of the connecting hole 513 provided on the rotating connecting plate 512 will contact the locking column 516 in the locking structure on the second pile puller, with the rotation of the rotating connecting plate 512, one end of the rotating connecting plate 512 will continuously enter the rotating groove 511 of the second pile puller, when rotating to the designated position, the locking column 516 will be inserted into the connecting hole 513; while the rotating connecting plate 512 rotates, the rotating connecting plate 512 drives the damping linkage structure 521 to rotate through the connecting column 5121, and the linkage control plate 5213 of the damping linkage structure 521 rotates into the groove 5222 of the linkage receiving assembly 522 of the second pile puller, the convex block 5214 corresponds to the control switch 5224, and the above steps are repeated to connect all the pile pullers.

[0106] When the pile body needs to be pulled out, the staff can start the motor 21 of the first pile puller by connecting the controller 6 of the first pile puller to the motor 21, when the motor 21 is started, it drives the lead screw 31 connected thereto to rotate, the lead screw 31 drives the lead screw nut 32 mounted thereon to rise, when the lead screw nut 32 rises, it drives the lifting mounting block 33 connected thereto to rise, the lifting mounting block 33 drives the clamping assembly 4 to rise, at the same time, the lifting mounting block 33 drives the first damping sliding block 5211 to rise, and the friction between the first damping sliding block 5211 and the damping sliding rod 5210 makes the damping sliding rod 5210 start to rise, the damping sliding rod 5210 drives the second damping sliding block 5212 to rise through the friction with the second damping sliding block 5212, the second damping sliding block 5212 drives the linkage control plate 5213 to rise, the protrusion 5214 on the linkage control plate 5213 presses one of the control switches 5224 in the second pile puller, at this time, the control switch 5224 sends a signal to the controller 6 of the second pile puller, the controller 6 of the second pile puller controls the motor 21 of the second pile puller to start working, and the process is repeated until all the pile pullers start working. It should be particularly pointed out that there are two ways to start the motor 21, the first is to start by the controller 6, and when the controller 6 is directly started, it can only be started for a certain time, and when the control switch 5224 is in the pressed state, the controller 6 controls the pile puller to move the full stroke, of course, the controller 6 can be stopped or stopped after the stroke is completed, and in the present application, the stroke control is realized by installing an infrared distance sensor on the lead screw nut 32 or a limit switch on the supporting column 13, when the stroke is completed or the controller 6 is stopped, the controller 6 controls the motor 21 to stop working, and then controls the motor 21 to reverse, so that the protrusion 5214 in the pile puller is separated from the control switch 5224 of the second pile puller, so that the controller 6 of the second pile puller receives a stop signal and controls the motor 21 of the second pile puller to stop and reverse, and the process is repeated until all the pile pullers are stopped; if the pile body has not been pulled out at this time, the connection between two adjacent pile pullers can be removed, the clamping piece 44 on the pile puller is separated from the pile body, then the controller 6 of the first pile puller controls the motor 21 to reverse and reset, and the linkage assembly 52 drives the next pile puller to reset, and when the pile puller is reset to the starting end, the controller 6 controls the motor 21 to stop and rotate forward, so that the protrusion 5214 is separated from another control switch 5224, and then the pile pulling can be reconnected and performed again.

[0107] Embodiment 2

[0108] See the attached Figure 17As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the clamping member 44 includes a pile-pulling block 441 mounted on the clamping connecting plate 41 and a spacer groove 442 disposed in the middle position of the pile-pulling block 441.

[0109] This embodiment adjusts the original columnar structure into a block structure of the pile-pulling block 441, and with the addition of the spacer groove 442, it can be used for piles with multiple holes at the same horizontal height. The width of the spacer groove 442 corresponds to the spacing between the holes. Of course, this embodiment can also be used to pull out piles with enlarged heads. That is, the spacer groove 442 cooperates with the main body of the pile, and then the clamping member 44 rises to support the enlarged head, thereby driving the entire pile to rise and pull out the pile.

[0110] Example 3

[0111] See appendix Figure 18 and Figure 19 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the pile pulling block 441 is provided with an insertion hole 443 that communicates with the interval groove 442, a support screw 444 is movably installed in the insertion hole 443, and a locking nut 445 is installed on the support screw 444.

[0112] In this embodiment, the insertion hole 443 is provided to provide an installation position for the support screw 444; the locking nut 445 is provided to prevent the support screw 444 from separating from the insertion hole 443.

[0113] In this embodiment, the support screw 444 is inserted through the entire pile body and then removed. In this embodiment, the width of the spacer slot 442 is not less than the width and length of the pile body. When resetting, it is not necessary to separate adjacent pile drivers; only the support screw 444 needs to be disassembled.

[0114] Example 4

[0115] See appendix Figure 20 As shown, the difference between this embodiment and the above embodiment is that in this embodiment, a hook 446 is installed on the support screw 444.

[0116] In this embodiment, by setting the hook 446, it is only necessary to hang the hook 446 in the hole of the pile body and then pull the pile. Moreover, during the resetting, it is not necessary to separate the adjacent pile driver; it is only necessary to unhook the hook.

[0117] Example 5

[0118] See appendix Figure 21As shown, the difference between the embodiment and the above-mentioned embodiments is that, in the embodiment, the clamping assembly 4 is movably installed on the lifting mounting block 33 through the waist-shaped hole 35, the clamping assembly 4 comprises a clamping block 401, a clamping mounting groove two 402 arranged on the clamping block 401, and a clamping groove 403 arranged on the clamping block 401 and used for clamping the pile body, the slotting direction of the clamping groove 403 is perpendicular to the slotting direction of the clamping mounting groove two 402.

[0119] In the embodiment, the pile body is pulled out through the friction between the clamping mounting groove two 402 and the pile body, and the embodiment does not need to arrange a hole on the pile body, so the use range of the pile driver is further expanded.

[0120] Embodiment 6

[0121] Referring to the accompanying Figure 22 As shown, the difference between the embodiment and the above-mentioned embodiments is that, in the embodiment, the clamping groove 403 is internally installed with an anti-skid strip 404.

[0122] In the embodiment, the anti-skid strip 404 is used to increase the friction between the clamping mounting groove two 402 and the pile body, so as to improve the pile pulling effect, and when the friction decreases, the anti-skid strip 404 can be replaced alone to ensure the pile pulling effect, and compared with the replacement of the clamping block 401, the cost of the anti-skid strip 404 is lower.

[0123] Embodiment 7

[0124] Referring to the accompanying Figure 23 — Figure 26As shown, the difference between the embodiment and the above-mentioned embodiment is that, in the embodiment, the rotary connecting plate 512 and the linkage control plate 5213 are telescopic structures, and the structures are similar. Specifically, the rotary connecting plate 512 comprises a rotary main plate 5122 movably mounted on the rotary groove 511 through a bolt, a telescopic groove one 5123 arranged on the rotary main plate 5122, a connecting secondary plate 5124 installed in the telescopic groove one 5123, a limiting block one 5125 installed at the slot of the telescopic groove one 5123, the connecting secondary plate 5124 is T-shaped, the bottom of the rotary main plate 5122 is provided with a sliding groove one 5126 in communication with the telescopic groove one 5123, the connecting column 5121 is installed at the bottom of the connecting secondary plate 5124 and located in the sliding groove one 5126, and the connecting hole 513 is arranged on the connecting secondary plate 5124; the linkage control plate 5213 comprises a linkage main plate 5213a movably mounted on the second damping sliding block 5212 through a bolt, a telescopic groove two 5213b arranged on the linkage main plate 5213a, a limiting block two 5213c arranged at the slot of the telescopic groove two 5213b, a control secondary plate 5213d slidably installed in the telescopic groove two 5213b and arranged in a T shape, a sliding groove two 5213e arranged at the top of the linkage main plate 5213a, one end of the connecting column 5121 located in the sliding groove two 5213e and connected with the control secondary plate 5213d, and the protrusion 5214 arranged on the control secondary plate 5213d.

[0125] In the embodiment, the rotary connecting plate 512 and the linkage control plate 5213 are arranged as telescopic structures, so that the staff can conveniently connect adjacent pile pulling machines, without the need to specially adjust the distance between adjacent pile pulling machines to adapt to the length of the rotary connecting plate 512 and the linkage control plate 5213. The distance between adjacent pile pulling machines only needs to be within the adjustable length of the rotary connecting plate 512 to be connected, and the orientation of the pile pulling machine and the pile body can be more flexibly arranged, thereby further improving the pile pulling efficiency.

[0126] The above-mentioned embodiments are descriptions of the present application, not limitations of the present application, and any simple transformation of the present application also belongs to the protection scope of the present application.

Claims

1. A combined pile extractor, characterized in that It comprises a rack (1), a power source assembly (2), a screw lifting assembly (3), a clamping assembly (4), a combination mechanism (5), a controller (6) and a battery (7); The power source assembly (2) is installed on the top of the rack (1) and connected with the screw lifting assembly (3) to provide lifting power for the screw lifting assembly (3), and the power source assembly (2) comprises a motor (21); The screw lifting assembly (3) is movably installed on the rack (1); The clamping assembly (4) is installed on the screw lifting assembly (3); The combination mechanism (5) is installed on the screw lifting assembly (3) and the rack (1) to connect adjacent racks (1); The controller (6) is installed on the rack (1); A plurality of pile pullers are connected in sequence through corresponding combination mechanisms (5), and then the corresponding motors (21) are started through the respective controllers (6) to drive the corresponding screw lifting assemblies (3) to work, so that the clamping assemblies (4) move up and down to pull out the pile body; The combination mechanism (5) comprises a pre-connection assembly (51) installed on the rack (1) and a linkage assembly (52) installed on the screw lifting assembly (3) and penetrating through the rack (1), and the linkage assembly (52) is connected with the pre-connection assembly (51); Before pulling out the pile, a plurality of pile pullers are placed around the pile body, and then adjacent pile pullers are connected through the pre-connection assembly (51), and after the connection is completed, one of the pile pullers is started, which drives other pile pullers to work synchronously through the linkage assembly (52); The linkage assembly (52) comprises a guide column (520) fixedly installed on the rack (1), a damping linkage structure (521) installed on the guide column (520) and penetrating through one side wall of the rack (1), and a linkage receiving assembly (522) installed on the other parallel side wall of the rack (1), and the linkage receiving assembly (522) is connected with the controller (6); The screw lifting assembly (3) and the connecting column (5121) are connected with the damping linkage structure (521); The screw lifting assembly (3) in one of the combined pile pullers drives the damping linkage structure (521) to move, and the linkage receiving assembly (522) in the other adjacent combined pile puller is instructed, and the linkage receiving assembly (522) sends a signal to the controller (6), and the controller (6) controls the corresponding motor (21) to work.

2. The combination puller according to claim 1, wherein, The pre-connection assembly (51) comprises two connecting ears (510) fixedly installed on two parallel side walls of the rack (1), a rotating groove (511) provided on the connecting ear (510), a rotating connecting plate (512) movably installed on the rotating groove (511) through a bolt at one end, a connecting hole (513) provided on the other end of the rotating connecting plate (512), a locking structure installed on the other connecting ear (510), and the locking structure is used for cooperating with the connecting hole (513) to lock and position the rotating connecting plate (512); and the rotating connecting plate (512) is connected with the linkage assembly (52).

3. The combination puller of claim 2 wherein, The locking structure comprises a through hole (514) arranged at the top of the connecting lug (510), a hollow tube (515) installed at the top of the connecting lug (510) and communicated with the through hole (514), a locking column (516) arranged through the hollow tube (515), a control plate (517) installed at the top of the locking column (516), a limiting plate (518) installed on the locking column (516) and located in the hollow tube (515), a spring (519) sleeved on the locking column (516) and located in the hollow tube (515), and a chamfer is arranged on the end of the locking column (516) away from the control plate (517); and a chamfer is also arranged on the end of the rotary connecting plate (512) provided with the connecting hole (513). The bottom of the rotary connecting plate (512) is provided with a connecting column (5121) which is movably connected with the linkage assembly (52).

4. The combination puller of claim 1 wherein, The damping linkage structure (521) comprises a damping slide rod (5210) movably installed on the guide column (520), a first damping slide block (5211) and a second damping slide block (5212) slidably installed on the damping slide rod (5210), a linkage control plate (5213) movably installed on the second damping slide block (5212) and penetrating through the rack (1), and two protrusions (5214) respectively installed at the top and the bottom of the linkage control plate (5213). The length of the damping slide rod (5210) is less than the length of the guide column (520). The first damping slide block (5211) is located at the top of the second damping slide block (5212), and one end of the first damping slide block (5211) is connected with the screw rod lifting assembly (3). The first damping slide block (5211) drives the damping slide rod (5210) and the second damping slide block (5212) to ascend through the friction force between the first damping slide block (5211) and the damping slide rod (5210). The second damping slide block (5212) stays at any position on the damping slide rod (5210) through the friction force between the second damping slide block (5212) and the damping slide rod (5210). The linkage control plate (5213) is movably connected with the connecting column (5121), and the rotation axis of the linkage control plate (5213) and the second damping slide block (5212) is collinear with the rotation axis of the connecting lug (510) and the rotary connecting plate (512). The linkage receiving assembly (522) comprises a linkage receiving block (5221) installed on the side wall of the rack (1), a groove (5222) arranged on the linkage receiving block (5221) and corresponding to the linkage control plate (5213), two placement grooves (5223) respectively arranged at the top and the bottom of the groove (5222), and a control switch (5224) installed in the placement groove (5223) and connected with the controller (6). The contact surface of the control switch (5224) is flush with the groove wall of the groove (5222). The thickness of the linkage control plate (5213) is less than the groove width of the groove (5222), and the thickness of the linkage control plate (5213) is equal to the sum of the thicknesses of the two protrusions (5214), which is equal to the groove height of the groove (5222); When the motor (21) in the power source assembly (2) drives the screw lifting assembly (3) to work, the screw lifting assembly (3) drives the first damping sliding block (5211) connected thereto to move, so that the linkage control plate (5213) moves.

5. The combination puller of claim 4 wherein, The rack (1) comprises a bottom plate (11), a mounting block (12) arranged on the bottom plate (11), a support column (13) mounted on the mounting block (12), a first movable connection structure (14) and a second movable connection structure (15) mounted on the bottom and top of the support column (13) respectively; The support column (13) is provided with a through groove (130) corresponding to the second damping sliding block (5212), and the height of the through groove (130) is greater than the thickness of the second damping sliding block (5212); The screw lifting assembly (3) is movably mounted on the first movable connection structure (14) and the second movable connection structure (15); Both ends of the guide column (520) are connected with the first movable connection structure (14) and the second movable connection structure (15).

6. The combination puller of claim 5 wherein, The mounting block (12) is arranged in a "H" shape, the support column (13) is provided with a through groove (131) corresponding to the screw lifting assembly (3), and the support column (13) is further provided with a movable groove (132) in communication with the through groove (131); The first movable connection structure (14) comprises a first mounting seat (141) located in the through groove (131), a first countersunk hole (142) arranged in the first mounting seat (141), and a first bearing (143) mounted in the first countersunk hole (142) and connected with the screw lifting assembly (3); The second movable connection structure (15) comprises a second mounting seat (151) mounted on the top of the support column (13), a connecting block (152) integrally formed with the second mounting seat (151) and located in the through groove (131), a second countersunk hole (153) arranged on the second mounting seat (151) and the connecting block (152), and a second bearing (154) mounted in the second countersunk hole (153) and connected with the screw lifting assembly (3); The power source assembly (2) is mounted on the second mounting seat (151).

7. The combination puller of claim 6 wherein, The screw lifting assembly (3) comprises a screw rod (31) movably connected with the first bearing (143) and the second bearing (154) at both ends, a screw nut (32) mounted on the screw rod (31), and a lifting mounting block (33) arranged on the screw nut (32), wherein the lifting mounting block (33) is located in the movable groove (132); The first mounting seat (141) and the second mounting seat (151) are both provided with a mounting groove (155), and an elastic retaining ring (156) is mounted in the mounting groove (155); The lifting mounting block (33) is connected with the first damping sliding block (5211); The lifting mounting block (33) is provided with a fixing hole (34) and a waist-shaped hole (35), the clamping assembly (4) is fixedly mounted on the lifting mounting block (33) through the fixing hole (34) and the waist-shaped hole (35), or the clamping assembly (4) is movably mounted on the lifting mounting block (33) through the waist-shaped hole (35).

8. The combination puller of claim 7 wherein, The power source assembly (2) further comprises a mounting vertical plate (22) mounted on the second mounting seat (151), the motor (21) is mounted on the mounting vertical plate (22), and the motor (21) is connected with the screw lifting assembly (3) through a shaft coupling; A handle (133) is mounted on the outer wall of the supporting column (13); The clamping assembly (4) fixedly mounted through the fixing hole (34) and the waist-shaped hole (35) comprises a clamping connecting plate (41), two clamping mounting plates (42) arranged on one side surface of the clamping connecting plate (41), a clamping installation groove one (43) formed between the two clamping mounting plates (42), a clamping piece (44) mounted on the other side surface of the clamping connecting plate (41), the clamping piece (44) is inserted into the pile body, and then the clamping piece (44) is lifted to pull out the pile body from the ground, and the clamping installation groove one (43) is matched with the lifting mounting block (33); The clamping piece (44) is composed of a pile pulling column; Alternatively, the clamping piece (44) comprises a pile pulling block (441) mounted on the clamping connecting plate (41) and a spacing groove (442) arranged at the middle position of the pile pulling block (441); The pile pulling block (441) is provided with a jack (443) in communication with the spacing groove (442), a supporting screw rod (444) movably mounted in the jack (443), and a locking nut (445) mounted on the supporting screw rod (444); The supporting screw rod (444) is provided with a hook (446); The clamping assembly (4) movably mounted through the waist-shaped hole (35) comprises a clamping block (401), a clamping installation groove two (402) arranged on the clamping block (401), and a clamping groove (403) arranged on the clamping block (401) and used for clamping the pile body, the clamping groove (403) is perpendicular to the clamping installation groove two (402) in the slotting direction. A non-slip strip (404) is mounted in the clamping groove (403).

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