A geotechnical engineering pile extraction auxiliary device and auxiliary method

Abstract

The present invention discloses a geotechnical engineering pile pulling auxiliary device and auxiliary method, which relates to the technical field of geotechnical engineering pile pulling auxiliary equipment, including: a lifting mechanism, the middle of which is hollow; an adjusting mechanism, the adjusting mechanism is installed on the top of the lifting mechanism, and the middle of which is hollow, and is located on an axis at the center point of the lifting mechanism; a pile pulling mechanism, the pile pulling mechanism is installed at the bottom of the adjusting mechanism, and a plurality of the pile pulling mechanisms are arranged in a circular array; and a moving mechanism, the moving mechanism is installed at the bottom of the lifting mechanism. The present invention enables the pile pulling mechanism to fix piles of different diameters through the cooperation of the adjusting mechanism and the pile pulling mechanism, and at the same time, the pile pulling mechanism fixes the pile body firmly, and will not separate from the pile body during the pile pulling process, thereby ensuring safety, and at the same time, the stability of the pulley assembly can be increased through the anchor assembly to prevent the device from being displaced during the pile pulling process, thereby avoiding the displacement of the pile body.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering pile extraction assistance, and in particular to a geotechnical engineering pile extraction assistance device and assistance method. Background Art

[0002] Geotechnical engineering is a new technical system established in the civil engineering practice in Europe and the United States in the 1960s. Geotechnical engineering is to solve rock and soil engineering problems, including foundations, slopes and underground engineering problems.

[0003] In the prior art, for example, the Chinese patent number CN216238520U, "A geotechnical engineering pile pulling auxiliary device and auxiliary method", includes a pile body, a support frame, a mounting block, a clamping block and a lifting assembly. A lower through hole is opened at the center of the support frame to the bottom thereof, and the lower through hole is passed through the upper end of the pile body. The mounting block is embedded in the upper end of the pile body. A threaded hole is opened on the mounting block to the bottom thereof, and mounting grooves are opened at the front, rear, left and right ends of the middle of the inner wall of the threaded hole to the outer wall of the mounting block. The upper end of the threaded hole is threadedly connected with a screw. Four clamping blocks are provided and are respectively embedded in four mounting grooves. The clamping blocks can slide in the mounting grooves. The screws and clamping blocks are used to tighten the pile body. The lifting assembly is located above the pile body, and the lifting assembly is used to lift the mounting block. Its beneficial effect is that the force applied to the ground during the pile pulling process is relatively uniform, which effectively avoids the situation where the ground is deformed due to excessive force at a certain point during the pile pulling, and effectively protects the ground.

[0004] However, in the prior art, the purpose of tightening the pile body is achieved only by relying on the clamping block to move outward to squeeze the inner wall of the pile body. This method may not firmly fix the pile body, resulting in detachment during pile extraction. In severe cases, the pile body may be damaged, which is not conducive to pile extraction. Summary of the invention

[0005] The purpose of the present invention is to overcome the technical problem that the pile body is not firmly fixed in the prior art, resulting in detachment during pile pulling, which may damage the pile body in severe cases, making it difficult to pull out the pile body. A geotechnical engineering pile pulling auxiliary device and auxiliary method are provided, which has the advantages of firm fixation, convenient pile pulling and simple structure.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A geotechnical engineering pile extraction auxiliary device and auxiliary method, comprising a lifting mechanism, wherein the middle of the lifting mechanism is hollow;

[0008] An adjusting mechanism, the adjusting mechanism is installed on the top of the lifting mechanism, and the middle of the adjusting mechanism is hollow and is located on an axis at the center point of the lifting mechanism;

[0009] A pile pulling mechanism, wherein the pile pulling mechanism is installed at the bottom of the adjusting mechanism and a plurality of the pile pulling mechanisms are arranged in a circular array;

[0010] The moving mechanism is installed at the bottom of the lifting mechanism, and four moving mechanisms are arranged in a circular array.

[0011] Preferably, the lifting mechanism comprises:

[0012] An installation base, wherein a circular pile placement opening is provided at the center point of the installation base;

[0013] Cylinder one, the cylinder one is fixedly mounted on the top of the mounting base by bolts, and three cylinders are arranged in a circular array.

[0014] Preferably, the adjustment mechanism comprises:

[0015] An adjustable mounting assembly, wherein a circular observation port is provided at the center point of the adjustable mounting assembly, and the observation port coincides with the placement port;

[0016] A limit assembly, wherein the limit assembly is embedded in the interior of the adjustment and installation assembly;

[0017] A driving assembly is installed outside the adjusting and mounting assembly and connected to the limiting assembly.

[0018] Preferably, the adjustment installation assembly comprises:

[0019] A hollow disk, wherein a sliding opening is provided at the bottom of the hollow disk, and a lifting lug is fixedly connected to the outer wall of the hollow disk, wherein a plurality of the sliding opening and the lifting lug are arranged in a circular array, and the output end of the cylinder 1 is fixedly connected to one of the lifting lugs;

[0020] The limiting component comprises:

[0021] A limit turntable, the limit turntable is rotatably sleeved in the inner circle of the hollow disk, and a plurality of limit openings are provided in a circular array, one side of the limit turntable is fixedly connected with a push plate, the push plate passes through one side of the hollow disk, and is provided with a push opening;

[0022] The drive assembly comprises:

[0023] The cylinder seat is fixedly mounted on the outer wall of the hollow disk and is fixedly mounted with a second cylinder. The output end of the second cylinder is fixedly connected with a push rod, and the push rod is slidably connected with the push port.

[0024] Preferably, the pile pulling mechanism comprises:

[0025] A connecting component, the connecting component is connected to the adjusting mechanism, and a plurality of the connecting components are arranged in a circular array;

[0026] A fine-tuning component, wherein the fine-tuning component is connected to the connecting component, and the number of the fine-tuning components is the same as the number of the connecting components;

[0027] A clamping assembly, wherein the clamping assembly is connected to the fine-tuning assembly, and the number of the clamping assemblies is the same as the number of the fine-tuning assemblies.

[0028] Preferably, each of the connection components at least comprises:

[0029] An I-shaped slider, the I-shaped slider is slidably connected with the sliding opening and the limiting opening, and the top end of the I-shaped slider is slidably connected with the top inner wall of the hollow disk through a guide block;

[0030] Each of the fine-tuning components comprises at least:

[0031] A rotating member, wherein two threaded holes of the rotating member are both threadedly connected with a one-way screw rod;

[0032] Each of the clamping assemblies comprises at least:

[0033] A U-shaped plate, the U-shaped plate and the I-shaped slider are respectively fixedly connected with a one-way screw rod 1, and the threaded holes on both sides of the U-shaped plate are threadedly connected with one-way screw rod 2, and the ends of the two one-way screw rods 2 that are close to each other are fixedly connected with a clamping plate.

[0034] Preferably, the moving mechanism comprises:

[0035] A pulley assembly, wherein a circular array of pulley assemblies is disposed at the bottom of the mounting base;

[0036] The anchor assembly is installed on the pulley assembly to enhance the stability of the pulley assembly.

[0037] Preferably, each of the pulley assemblies comprises at least:

[0038] A support leg, the top end of which is fixedly mounted on the bottom of the mounting base by bolts, and the bottom end of which is fixedly connected to a universal wheel by bolts;

[0039] Each of the anchor components at least comprises:

[0040] A bidirectional screw rod, wherein the outer ring rotating sleeve of the bidirectional screw rod is provided with two thread sleeves;

[0041] A movable sleeve, both sides of which are hinged with connecting rods, the two connecting rods are respectively connected with the two silk sleeves, the bottom of the movable sleeve is fixedly connected with a ground pin through a connecting plate, and the connecting plate movable sleeve is arranged on the outer circle of the supporting leg.

[0042] The present invention also discloses a geotechnical engineering pile extraction auxiliary method, the steps of which are as follows:

[0043] Step 1: First, the device is moved as a whole to the top of the pile body, and then the cylinder 1 is started to drive the pile pulling mechanism installed on the bottom of the adjustment mechanism to approach the opening of the pile body, and the pile pulling mechanism arranged in a circular array is adjusted by the adjustment mechanism, so that the pile pulling mechanism can fix piles of different diameters;

[0044] Step 2: Start the cylinder seat to drive the cylinder 2 to move. The movement of the cylinder 2 can drive the limit turntable to rotate in the inner circle of the hollow disk through the push plate. The restriction of the I-shaped slider by the limit opening will make it slide on the sliding opening, so that the rotation of the limit turntable will make several pile pulling mechanisms approach or move away from the center of the hollow disk, so that it can match piles of different diameters;

[0045] Step 3: The rotating member is rotated in the forward direction and cooperates with the thread of the upper one-way screw rod 1, so as to drive the lower clamping assembly to move downward and finally contact the pile body;

[0046] Step 4: When the shell at the top of the pile body enters the interior of the U-shaped plate, the two one-way screws 2 are rotated forward at the same time, and the clamping plate is driven to approach the shell of the pile body to clamp and fix it through the threaded cooperation with the threaded hole of the U-shaped plate, and finally each set of clamping components fixes the pile body;

[0047] Step 5: After the pile body is fixed, the bidirectional screw rod is rotated forward to drive the movable sleeve to move downward on the supporting leg through the screw sleeve and the connecting rod, so that the anchor pin can be pushed into the deep ground through the connecting plate to increase the overall stability of the device;

[0048] Step 6: Start the cylinder again to push the adjusting mechanism upward. During the movement of the adjusting mechanism, the pile body fixed on the pile pulling mechanism will move upward together, thereby completing the pile pulling;

[0049] Step 7: Reversely rotate the two-way screw rod to drive the movable sleeve to move upward through the screw sleeve and the connecting rod, so as to pull out the anchor pins inserted deep into the ground, making it easier to move the device to an open space;

[0050] Step 8: Start cylinder 1 again to place the pile body fixed on the pile pulling mechanism on the ground, then rotate the two one-way screws 2 in the opposite direction, and drive the clamping plate away from the pile body by cooperating with the threads of the threaded holes of the U-shaped plate. Rotate the rotating part in the opposite direction and drive the U-shaped plate away from the pile body by cooperating with the threads of the one-way screw 1 above. Finally, push the device away from the pile body to complete the overall process of pile pulling.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] 1. In the present invention, the pile pulling mechanism can fix piles of different diameters through the cooperation of the adjustment mechanism and the pile pulling mechanism. At the same time, the pile pulling mechanism fixes the pile firmly and will not separate from the pile during the pile pulling process, thereby ensuring safety.

[0053] 2. In the present invention, the anchor assembly can increase the stability of the pulley assembly, preventing the device from being displaced during the pile pulling process, thereby avoiding the pile body from being offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic diagram of the overall structure of a geotechnical engineering pile pulling auxiliary device and auxiliary method in one embodiment of the present invention;

[0055] Figure 2 It is a schematic diagram of the overall structure of a lifting mechanism in a geotechnical engineering pile pulling auxiliary device and auxiliary method in one embodiment;

[0056] Figure 3 It is a partial cross-sectional structural schematic diagram of an adjustment mechanism in a geotechnical engineering pile pulling auxiliary device and auxiliary method in one embodiment of the present invention;

[0057] Figure 4 It is a structural schematic diagram of an adjustment mechanism in a geotechnical engineering pile pulling auxiliary device and auxiliary method in one embodiment of the present invention;

[0058] Figure 5 A cross-sectional view of an adjustment and installation assembly in a geotechnical engineering pile pulling auxiliary device and auxiliary method in one embodiment of the present invention;

[0059] Figure 6 It is a structural schematic diagram of a limiting component in a geotechnical engineering pile pulling auxiliary device and auxiliary method in one embodiment of the present invention;

[0060] Figure 7 It is a schematic diagram of the overall structure of a pile pulling mechanism in a geotechnical engineering pile pulling auxiliary device and auxiliary method in one embodiment of the present invention;

[0061] Figure 8It is a schematic diagram of the overall structure of a moving mechanism in a geotechnical engineering pile pulling auxiliary device and auxiliary method in one embodiment of the present invention.

[0062] In the figure:

[0063] 1. Lifting mechanism; 11. Mounting base; 12. Cylinder 1; 2. Adjustment mechanism; 21. Adjustment and installation assembly; 211. Hollow plate; 212. Slide; 213. Lifting lug; 22. Limit assembly; 221. Limiting turntable; 222. Limiting opening; 223. Push plate; 224. Push opening; 23. Driving assembly; 231. Cylinder seat; 232. Cylinder 2; 233. Push rod; 3. Pile pulling mechanism; 31. Connection assembly; 311. I-shaped slide Block; 312, guide block; 32, fine-tuning assembly; 321, rotating part; 322, one-way screw rod one; 33, clamping assembly; 331, U-shaped plate; 332, one-way screw rod two; 333, clamping plate; 4, moving mechanism; 41, pulley assembly; 411, supporting leg; 412, universal wheel; 42, anchor assembly; 421, two-way screw rod; 422, thread sleeve; 423, movable sleeve; 424, connecting rod; 425, connecting plate; 426, anchor pin. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] In conjunction with the accompanying drawings, in this embodiment, a geotechnical engineering pile pulling auxiliary device and auxiliary method include: a lifting mechanism 1, the middle of the lifting mechanism 1 is hollow; an adjusting mechanism 2, the adjusting mechanism 2 is installed on the top of the lifting mechanism 1, and the middle of the adjusting mechanism 2 is hollow, and the center point of the lifting mechanism 1 is located on an axis; a pile pulling mechanism 3, the pile pulling mechanism 3 is installed at the bottom of the adjusting mechanism 2, and a plurality of the pile pulling mechanisms 3 are arranged in a circular array; a moving mechanism 4, the moving mechanism 4 is installed at the bottom of the lifting mechanism 1, and four of the moving mechanisms 4 are arranged in a circular array.

[0066] Specifically, the lifting mechanism 1 is used to drive the adjustment mechanism 2 and the pile pulling mechanism 3 to rise and fall, the adjustment mechanism 2 is used to adjust the distance between the pile pulling mechanism 3 and the center of the adjustment mechanism 2, the pile pulling mechanism 3 is used to fix the pile body, and the moving mechanism 4 is used to enhance the stability of the lifting mechanism 1.

[0067] In order to facilitate those skilled in the art to fully understand the specific structure and working principle of the lifting mechanism 1, the lifting mechanism 1 is further described. In this embodiment, the lifting mechanism 1 includes: a mounting base 11, a circular pile body placement opening is opened at the center point of the mounting base 11; a cylinder 12, which is fixedly mounted on the top of the mounting base 11 by bolts, and three cylinders are arranged in a circular array.

[0068] Each cylinder 12 can be easily disassembled and assembled by disassembling bolts, and the three cylinders 12 form a relatively stable triangle.

[0069] In order to facilitate those skilled in the art to fully understand the specific structure and working principle of the adjustment mechanism 2, the adjustment mechanism 2 is further described. In this embodiment, the adjustment mechanism 2 includes: an adjustment installation component 21, a circular observation port is opened at the center point of the adjustment installation component 21, and the observation port coincides with the placement port; a limit component 22, the limit component 22 is embedded in the inside of the adjustment installation component 21; and a driving component 23, the driving component 23 is installed outside the adjustment installation component 21 and connected to the limit component 22.

[0070] The limiting assembly 22 can be driven to rotate inside the adjusting and installing assembly 21 by the driving assembly 23 . The rotation of the limiting assembly 22 can control a plurality of pile pulling mechanisms 3 to approach or move away from the center point of the adjusting and installing assembly 21 at the same time.

[0071] In order to facilitate those skilled in the art to fully understand the specific structure and working principle of the adjustment and installation assembly 21, the limit assembly 22 and the drive assembly 23, further description is made on the adjustment and installation assembly 21, the limit assembly 22 and the drive assembly 23. In this embodiment, the adjustment and installation assembly 21 includes: a hollow disk 211, a sliding opening 212 is provided at the bottom of the hollow disk 211, and a hanging ear 213 is fixedly connected to the outer wall of the hollow disk 211, and the sliding opening 212 and the hanging ear 213 are arranged in a circular array, and the output end of the cylinder 12 is fixedly connected to a hanging ear 213; the limit assembly 22 includes: a limit turntable 221, the limit turntable 221 is rotatably sleeved in the inner circle of the hollow disk 211, and is arranged in a circular array. A plurality of limit openings 222 are provided, and a push plate 223 is fixedly connected to one side of the limit turntable 221. The push plate 223 passes through one side of the hollow disk 211 and is provided with a push opening 224. The driving assembly 23 includes: a cylinder seat 231, the cylinder seat 231 is fixedly mounted on the outer wall of the hollow disk 211, and a cylinder 232 is fixedly mounted thereon, and a push rod 233 is fixedly connected to the output end of the cylinder 232, and the push rod 233 is slidably connected to the push opening 224.

[0072] The cylinder seat 231 drives the second cylinder 232 to move. The movement of the second cylinder 232 can drive the limiting turntable 221 to rotate in the inner circle of the hollow disk 211 through the pushing plate 223. The restriction of the I-shaped sliding block 311 by the limiting opening 222 will make it slide on the sliding opening 212, so that the rotation of the limiting turntable 221 will make the plurality of pile pulling mechanisms 3 approach or move away from the center of the hollow disk 211.

[0073] In order to facilitate those skilled in the art to fully understand the specific structure and working principle of the pile pulling mechanism 3, the pile pulling mechanism 3 is further described. In this embodiment, the pile pulling mechanism 3 includes: a connecting component 31, the connecting component 31 is connected to the adjustment mechanism 2, and a plurality of connecting components 31 are arranged in a circular array; a fine-tuning component 32, the fine-tuning component 32 is connected to the connecting component 31, and the number of the fine-tuning components 32 is the same as the number of the connecting components 31; a clamping component 33, the clamping component 33 is connected to the fine-tuning component 32, and the number of the clamping component 33 is the same as the number of the fine-tuning components 32

[0074] The number of the connecting components 31 is the same as the number of the sliding openings 212 , and the fine-tuning component 32 is used to control the distance between the connecting component 31 and the clamping component 33 .

[0075] In order to facilitate those skilled in the art to fully understand the specific structures and working principles of the connecting assembly 31, the fine-tuning assembly 32 and the clamping assembly 33, the connecting assembly 31, the fine-tuning assembly 32 and the clamping assembly 33 are further explained. In this embodiment, each connecting component 31 at least includes: an I-shaped slider 311, the I-shaped slider 311 is slidably connected to the sliding port 212 and the limit port 222, and the top of the I-shaped slider 311 is slidably connected to the top inner wall of the hollow disk 211 through the guide block 312; each fine-tuning component 32 at least includes: a rotating member 321, and the two threaded holes of the rotating member 321 are both threadedly connected with a one-way screw rod 1 322; each clamping component 33 at least includes: a U-shaped plate 331, the U-shaped plate 331 and the I-shaped slider 311 are respectively fixedly connected with a one-way screw rod 1 322, and the threaded holes on both sides of the U-shaped plate 331 are threadedly connected with a one-way screw rod 2 332, and the ends of the two one-way screw rods 2 332 close to each other are fixedly connected with a clamping plate 333.

[0076] Rotating the rotating part 321 can drive the lower clamping assembly 33 to move upward or downward by cooperating with the thread of the upper one-way screw rod 1 322, and rotating the two one-way screw rods 332 can drive the two clamping plates 333 to move away from or towards each other by cooperating with the thread of the threaded hole of the U-shaped plate 331.

[0077] In order to facilitate those skilled in the art to fully understand the specific structure and working principle of the moving mechanism 4, the moving mechanism 4 is further described. In this embodiment, the connecting assembly 31 may include: the moving mechanism 4 includes: a pulley assembly 41, the pulley assembly 41 is arranged in a circular array at the bottom of the mounting base 11; and a ground anchor assembly 42, the ground anchor assembly 42 is installed on the pulley assembly 41 to enhance the stability of the pulley assembly 41.

[0078] The pulley assembly 41 has a self-locking function, and the anchor assembly 42 is used to prevent the pulley assembly 41 from moving when it is stopped.

[0079] In order to facilitate those skilled in the art to fully understand the specific structure and working principle of the pulley assembly 41 and the anchor assembly 42, further description is made on the pulley assembly 41 and the anchor assembly 42. In this embodiment, each pulley assembly 41 at least includes: a support leg 411, the top of the support leg 411 is fixedly mounted on the bottom of the mounting base 11 by bolts, and the bottom of the support leg 411 is fixedly connected to a universal wheel 412 by bolts; each anchor assembly 42 at least includes: a bidirectional screw rod 421, the outer ring of the bidirectional screw rod 421 is rotatably sleeved with two thread sleeves 422; a movable sleeve 423, both sides of the movable sleeve 423 are hinged with connecting rods 424, the two connecting rods 424 are respectively connected with the two thread sleeves 422, and the bottom of the movable sleeve 423 is fixedly connected with an anchor pin 426 through a connecting plate 425, and the connecting plate 425 is movably sleeved on the outer ring of the support leg 411.

[0080] Rotating the bidirectional screw rod 421 can drive the movable sleeve 423 to move up and down on the support leg 411 through the screw sleeve 422 and the connecting rod 424, and the connecting plate 425 can drive the anchor pin 426 to move together. When the anchor pin 426 is inserted deep into the ground, it is used to increase the overall stability of the device. When the anchor pin 426 is pulled out of the ground, it is convenient for the universal wheel 412 to move.

[0081] In the present invention, the working principle is as follows: first, the device is moved as a whole to the top of the pile body, and then the cylinder 12 is started to drive the pile pulling mechanism 3 installed on the bottom of the adjusting mechanism 2 to approach the opening of the pile body, and the pile pulling mechanism 3 arranged in a circular array is adjusted by the adjusting mechanism 2, so that the pile pulling mechanism 3 can fix piles of different diameters;

[0082] The cylinder seat 231 is started to drive the second cylinder 232 to move. The movement of the second cylinder 232 can drive the limit turntable 221 to rotate in the inner circle of the hollow disk 211 through the push plate 223. The restriction of the I-shaped slider 311 by the limit opening 222 will make it slide on the sliding opening 212, so that the rotation of the limit turntable 221 will make the plurality of pile pulling mechanisms 3 approach or move away from the center of the hollow disk 211, so that it can match piles of different diameters.

[0083] The forward rotating member 321 can drive the lower clamping assembly 33 to move downward and finally contact the pile body by cooperating with the thread of the upper one-way screw rod 322;

[0084] When the shell at the top of the pile body enters the interior of the U-shaped plate 331, the two one-way screw rods 332 are rotated forward at the same time, and the clamping plate 333 is driven to approach the shell of the pile body to clamp and fix it through the threaded cooperation with the threaded hole of the U-shaped plate 331, and finally each group of clamping components 33 fixes the pile body;

[0085] After the pile body is fixed, the forward rotation of the bidirectional screw rod 421 can drive the movable sleeve 423 to move downward on the support leg 411 through the screw sleeve 422 and the connecting rod 424, so that the anchor pin 426 can be pushed into the deep ground through the connecting plate 425 to increase the overall stability of the device;

[0086] Start the cylinder 12 again to push the adjusting mechanism 2 upward. During the movement, the adjusting mechanism 2 will drive the pile body fixed on the pile pulling mechanism 3 to move upward together, thereby completing the pile pulling;

[0087] The bidirectional screw rod 421 is rotated in the opposite direction to drive the movable sleeve 423 to move upward through the screw sleeve 422 and the connecting rod 424, so as to pull out the anchor pin 426 inserted deep into the ground, making it convenient to move the device to an open space;

[0088] Start the cylinder 12 again to place the pile body fixed on the pile pulling mechanism 3 on the ground, then rotate the two one-way screw rods 332 in the opposite direction, and drive the clamping plate 333 away from the pile body by cooperating with the threads of the threaded holes of the U-shaped plate 331, and rotate the rotating member 321 in the opposite direction to drive the U-shaped plate 331 away from the pile body by cooperating with the threads of the upper one-way screw rod 1 322, and finally, the pushing device is away from the pile body to complete the overall process of pile pulling.

[0089] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A geotechnical engineering pile extraction auxiliary device, It is characterized in that include: A lifting mechanism (1), wherein the middle of the lifting mechanism (1) is hollow; The lifting mechanism (1) comprises: An installation base (11), wherein a circular pile placement opening is provided at the center point of the installation base (11); Cylinder one (12), wherein the cylinder one (12) is fixedly mounted on the top of the mounting base (11) by bolts, and three cylinders are arranged in a circular array; An adjusting mechanism (2), the adjusting mechanism (2) being installed on the top of the lifting mechanism (1), and the middle of the adjusting mechanism (2) being hollow and located on an axis at the center point of the lifting mechanism (1); A pile pulling mechanism (3), wherein the pile pulling mechanism (3) is installed at the bottom of the adjustment mechanism (2), and a plurality of the pile pulling mechanisms (3) are arranged in a circular array; A moving mechanism (4), wherein the moving mechanism (4) is installed at the bottom of the lifting mechanism (1), and four moving mechanisms (4) are arranged in a circular array; The regulating mechanism (2) comprises: An adjusting and mounting assembly (21), wherein a circular observation opening is provided at the center point of the adjusting and mounting assembly (21), and the observation opening coincides with the placement opening; A limiting component (22), wherein the limiting component (22) is embedded in the interior of the adjusting and mounting component (21); A driving assembly (23), wherein the driving assembly (23) is mounted outside the adjusting and mounting assembly (21) and connected to the limiting assembly (22); The adjustment and installation assembly (21) comprises: A hollow disk (211), wherein a sliding opening (212) is provided at the bottom of the hollow disk (211), and a lifting lug (213) is fixedly connected to the outer wall of the hollow disk (211), wherein a plurality of the sliding opening (212) and the lifting lug (213) are arranged in a circular array, and the output end of the cylinder 1 (12) is fixedly connected to one of the lifting lugs (213); The limiting component (22) comprises: A limit rotating disk (221), the limit rotating disk (221) is rotatably sleeved in the inner circle of the hollow disk (211), and is provided with a plurality of limit openings (222) in a circular array, one side of the limit rotating disk (221) is fixedly connected with a push plate (223), the push plate (223) passes through one side of the hollow disk (211), and is provided with a push opening (224); The driving assembly (23) comprises: A cylinder seat (231), the cylinder seat (231) is fixedly mounted on the outer wall of the hollow disk (211), and is fixedly mounted with a second cylinder (232), the output end of the second cylinder (232) is fixedly connected with a push rod (233), and the push rod (233) is slidably connected with the push port (224); The cylinder seat (231) drives the second cylinder (232) to move. The movement of the second cylinder (232) can drive the limiting rotating disk (221) to rotate in the inner circle of the hollow disk (211) through the pushing plate (223). The I-shaped sliding block (311) is restricted by the limiting opening (222) so that it slides on the sliding opening (212), so that the rotation of the limiting rotating disk (221) causes the plurality of pile pulling mechanisms (3) to approach or move away from the center of the hollow disk (211). The pile pulling mechanism (3) comprises: A connecting component (31), the connecting component (31) being connected to the adjusting mechanism (2), and a plurality of the connecting components (31) are arranged in a circular array; A fine-tuning component (32), the fine-tuning component (32) being connected to the connecting component (31), and the number of the fine-tuning components (32) is the same as the number of the connecting components (31); A clamping assembly (33), wherein the clamping assembly (33) is connected to the fine-tuning assembly (32), and the number of the clamping assemblies (33) is the same as the number of the fine-tuning assemblies (32); Each of the connecting components (31) comprises at least: An I-shaped slider (311), the I-shaped slider (311) is slidably connected to the sliding opening (212) and the limiting opening (222), and the top end of the I-shaped slider (311) is slidably connected to the top inner wall of the hollow disk (211) via a guide block (312); Each of the fine-tuning components (32) comprises at least: A rotating member (321), wherein two threaded holes of the rotating member (321) are both threadedly connected with a one-way screw rod (322); Each of the clamping assemblies (33) comprises at least: A U-shaped plate (331), wherein the U-shaped plate (331) and the I-shaped slider (311) are respectively fixedly connected with a one-way screw rod (322), and the threaded holes on both sides of the U-shaped plate (331) are both threadedly connected with one-way screw rods (332), and the ends of the two one-way screw rods (332) that are close to each other are both fixedly connected with a clamping plate (333).

2. The geotechnical engineering pile extraction auxiliary device according to claim 1, Features: The moving mechanism (4) comprises: A pulley assembly (41), wherein the pulley assembly (41) is arranged in a circular array at the bottom of the mounting base (11); A ground anchor assembly (42), wherein the ground anchor assembly (42) is installed on the pulley assembly (41) and is used to enhance the stability of the pulley assembly (41).

3. The geotechnical engineering pile extraction auxiliary device according to claim 2, Features: Each of the pulley assemblies (41) comprises at least: A support leg (411), the top end of the support leg (411) is fixedly mounted on the bottom of the mounting base (11) by means of bolts, and the bottom end of the support leg (411) is fixedly connected to a universal wheel (412) by means of bolts; Each of the anchor components (42) comprises at least: A bidirectional screw rod (421), wherein the outer ring rotating sleeve of the bidirectional screw rod (421) is provided with two screw sleeves (422); A movable sleeve (423), both sides of the movable sleeve (423) are hinged with connecting rods (424), the two connecting rods (424) are respectively connected to the two silk sleeves (422), the bottom of the movable sleeve (423) is fixedly connected to the ground pin (426) through a connecting plate (425), and the connecting plate (425) is movably sleeved on the outer ring of the supporting leg (411).

4. A pile pulling auxiliary method, using the geotechnical engineering pile pulling auxiliary device according to claim 3 to pull piles. Features: The steps are as follows: Step 1: First, the device is moved as a whole to the top of the pile body, and then the cylinder 1 (12) is started to drive the pile pulling mechanism (3) installed on the bottom of the adjustment mechanism (2) to approach the opening of the pile body. The adjustment mechanism (2) is used to adjust a plurality of pile pulling mechanisms (3) arranged in a circular array, so that the pile pulling mechanism (3) can fix piles of different diameters. Step 2: Start the cylinder seat (231) to drive the cylinder 2 (232) to move. The movement of the cylinder 2 (232) can drive the limit rotating disk (221) to rotate in the inner circle of the hollow disk (211) through the push plate (223). The I-shaped sliding block (311) is restricted by the limit opening (222) to slide on the sliding opening (212), so that the rotation of the limit rotating disk (221) can make the plurality of pile pulling mechanisms (3) approach or move away from the center of the hollow disk (211), so as to match the pile bodies with different diameters. Step 3: The rotating member (321) is rotated forwardly to cooperate with the thread of the upper one-way screw rod 1 (322), so as to drive the lower clamping assembly (33) to move downward and finally contact the pile body; Step 4: After the shell at the top of the pile body enters the interior of the U-shaped plate (331), the two one-way screw rods (332) are rotated forward at the same time, and the clamping plate (333) is driven to approach the shell of the pile body to clamp and fix it through the threaded cooperation with the threaded hole of the U-shaped plate (331), and finally each group of clamping components (33) fixes the pile body; Step 5: After the pile body is fixed, the bidirectional screw rod (421) is rotated forwardly through the screw sleeve (422) and the connecting rod (424) to drive the movable sleeve (423) to move downward on the supporting leg (411), so that the anchor pin (426) can be pushed into the deep ground through the connecting plate (425) to increase the overall stability of the device; Step 6: Start the cylinder 1 (12) again to push the adjusting mechanism (2) to move upwards. During the movement of the adjusting mechanism (2), the pile body fixed on the pile pulling mechanism (3) will be driven to move upwards together, thereby completing the pile pulling; Step 7: Reversely rotate the bidirectional screw rod (421) to drive the movable sleeve (423) to move upward through the screw sleeve (422) and the connecting rod (424), thereby pulling out the anchor pin (426) inserted deep into the ground, making it easier to move the device to an open space; Step 8: Start the cylinder 1 (12) again to place the pile body fixed on the pile pulling mechanism (3) on the ground, then rotate the two one-way screw rods 2 (332) in the opposite direction, and drive the clamping plate (333) away from the pile body through the threaded engagement with the threaded hole of the U-shaped plate (331), and rotate the rotating member (321) in the opposite direction to drive the U-shaped plate (331) away from the pile body through the threaded engagement with the upper one-way screw rod 1 (322), and finally, the pushing device is away from the pile body, completing the whole process of pile pulling.

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